From 042fcb82b83d19bf08afd3367235ac71a60b3850 Mon Sep 17 00:00:00 2001 From: Vincent Sanders Date: Tue, 7 Jun 2016 16:01:04 +0100 Subject: Move javascript content handler as appropriate for updated source format --- content/Makefile | 3 +- content/handlers/Makefile | 7 +- content/handlers/javascript/Makefile | 18 + content/handlers/javascript/WebIDL/Makefile | 57 + content/handlers/javascript/WebIDL/console.idl | 24 + content/handlers/javascript/WebIDL/cssom.idl | 157 + content/handlers/javascript/WebIDL/dom-parsing.idl | 35 + content/handlers/javascript/WebIDL/dom.idl | 479 + content/handlers/javascript/WebIDL/html.idl | 2288 + content/handlers/javascript/WebIDL/uievents.idl | 185 + content/handlers/javascript/WebIDL/urlutils.idl | 65 + content/handlers/javascript/content.c | 120 + content/handlers/javascript/content.h | 1 + content/handlers/javascript/duktape/Console.bnd | 177 + content/handlers/javascript/duktape/Document.bnd | 445 + content/handlers/javascript/duktape/Element.bnd | 379 + content/handlers/javascript/duktape/Event.bnd | 150 + .../javascript/duktape/HTMLAnchorElement.bnd | 39 + .../javascript/duktape/HTMLAppletElement.bnd | 30 + .../javascript/duktape/HTMLAreaElement.bnd | 26 + .../handlers/javascript/duktape/HTMLBRElement.bnd | 14 + .../javascript/duktape/HTMLBaseElement.bnd | 17 + .../javascript/duktape/HTMLBodyElement.bnd | 24 + .../javascript/duktape/HTMLButtonElement.bnd | 18 + .../handlers/javascript/duktape/HTMLCollection.bnd | 24 + .../handlers/javascript/duktape/HTMLDivElement.bnd | 14 + .../handlers/javascript/duktape/HTMLElement.bnd | 162 + .../javascript/duktape/HTMLFontElement.bnd | 20 + .../javascript/duktape/HTMLFormElement.bnd | 26 + .../javascript/duktape/HTMLFrameElement.bnd | 35 + .../javascript/duktape/HTMLFrameSetElement.bnd | 17 + .../handlers/javascript/duktape/HTMLHRElement.bnd | 24 + .../javascript/duktape/HTMLHTMLElement.bnd | 14 + .../javascript/duktape/HTMLHeadingElement.bnd | 14 + .../javascript/duktape/HTMLIFrameElement.bnd | 41 + .../javascript/duktape/HTMLImageElement.bnd | 47 + .../javascript/duktape/HTMLInputElement.bnd | 64 + .../handlers/javascript/duktape/HTMLLIElement.bnd | 17 + .../javascript/duktape/HTMLLabelElement.bnd | 14 + .../javascript/duktape/HTMLLegendElement.bnd | 14 + .../javascript/duktape/HTMLLinkElement.bnd | 35 + .../handlers/javascript/duktape/HTMLMapElement.bnd | 14 + .../javascript/duktape/HTMLMarqueeElement.bnd | 11 + .../javascript/duktape/HTMLMenuElement.bnd | 14 + .../javascript/duktape/HTMLMetaElement.bnd | 23 + .../javascript/duktape/HTMLOListElement.bnd | 18 + .../javascript/duktape/HTMLObjectElement.bnd | 54 + .../javascript/duktape/HTMLOptionElement.bnd | 28 + .../javascript/duktape/HTMLParagraphElement.bnd | 14 + .../javascript/duktape/HTMLParamElement.bnd | 23 + .../handlers/javascript/duktape/HTMLPreElement.bnd | 15 + .../javascript/duktape/HTMLQuoteElement.bnd | 14 + .../javascript/duktape/HTMLScriptElement.bnd | 32 + .../javascript/duktape/HTMLSelectElement.bnd | 26 + .../javascript/duktape/HTMLStyleElement.bnd | 17 + .../javascript/duktape/HTMLTableCaptionElement.bnd | 14 + .../javascript/duktape/HTMLTableCellElement.bnd | 46 + .../javascript/duktape/HTMLTableColElement.bnd | 26 + .../javascript/duktape/HTMLTableElement.bnd | 38 + .../javascript/duktape/HTMLTableRowElement.bnd | 30 + .../javascript/duktape/HTMLTableSectionElement.bnd | 23 + .../javascript/duktape/HTMLTextAreaElement.bnd | 30 + .../javascript/duktape/HTMLTitleElement.bnd | 14 + content/handlers/javascript/duktape/Location.bnd | 353 + content/handlers/javascript/duktape/Makefile | 40 + content/handlers/javascript/duktape/Navigator.bnd | 87 + content/handlers/javascript/duktape/Node.bnd | 479 + content/handlers/javascript/duktape/NodeList.bnd | 54 + content/handlers/javascript/duktape/Window.bnd | 146 + content/handlers/javascript/duktape/duk_config.h | 3753 + content/handlers/javascript/duktape/duk_custom.h | 37 + content/handlers/javascript/duktape/dukky.c | 1135 + content/handlers/javascript/duktape/dukky.h | 45 + content/handlers/javascript/duktape/duktape.c | 86513 +++++++++++++++++++ content/handlers/javascript/duktape/duktape.h | 1567 + content/handlers/javascript/duktape/netsurf.bnd | 200 + content/handlers/javascript/fetcher.c | 217 + content/handlers/javascript/fetcher.h | 28 + content/handlers/javascript/js.h | 102 + content/handlers/javascript/none/Makefile | 9 + content/handlers/javascript/none/none.c | 70 + 81 files changed, 100697 insertions(+), 2 deletions(-) create mode 100644 content/handlers/javascript/Makefile create mode 100644 content/handlers/javascript/WebIDL/Makefile create mode 100644 content/handlers/javascript/WebIDL/console.idl create mode 100644 content/handlers/javascript/WebIDL/cssom.idl create mode 100644 content/handlers/javascript/WebIDL/dom-parsing.idl create mode 100644 content/handlers/javascript/WebIDL/dom.idl create mode 100644 content/handlers/javascript/WebIDL/html.idl create mode 100644 content/handlers/javascript/WebIDL/uievents.idl create mode 100644 content/handlers/javascript/WebIDL/urlutils.idl create mode 100644 content/handlers/javascript/content.c create mode 100644 content/handlers/javascript/content.h create mode 100644 content/handlers/javascript/duktape/Console.bnd create mode 100644 content/handlers/javascript/duktape/Document.bnd create mode 100644 content/handlers/javascript/duktape/Element.bnd create mode 100644 content/handlers/javascript/duktape/Event.bnd create mode 100644 content/handlers/javascript/duktape/HTMLAnchorElement.bnd create mode 100644 content/handlers/javascript/duktape/HTMLAppletElement.bnd create mode 100644 content/handlers/javascript/duktape/HTMLAreaElement.bnd create mode 100644 content/handlers/javascript/duktape/HTMLBRElement.bnd create mode 100644 content/handlers/javascript/duktape/HTMLBaseElement.bnd create mode 100644 content/handlers/javascript/duktape/HTMLBodyElement.bnd create mode 100644 content/handlers/javascript/duktape/HTMLButtonElement.bnd create mode 100644 content/handlers/javascript/duktape/HTMLCollection.bnd create mode 100644 content/handlers/javascript/duktape/HTMLDivElement.bnd create mode 100644 content/handlers/javascript/duktape/HTMLElement.bnd create mode 100644 content/handlers/javascript/duktape/HTMLFontElement.bnd create mode 100644 content/handlers/javascript/duktape/HTMLFormElement.bnd create mode 100644 content/handlers/javascript/duktape/HTMLFrameElement.bnd create mode 100644 content/handlers/javascript/duktape/HTMLFrameSetElement.bnd create mode 100644 content/handlers/javascript/duktape/HTMLHRElement.bnd create mode 100644 content/handlers/javascript/duktape/HTMLHTMLElement.bnd create mode 100644 content/handlers/javascript/duktape/HTMLHeadingElement.bnd create mode 100644 content/handlers/javascript/duktape/HTMLIFrameElement.bnd create mode 100644 content/handlers/javascript/duktape/HTMLImageElement.bnd create mode 100644 content/handlers/javascript/duktape/HTMLInputElement.bnd create mode 100644 content/handlers/javascript/duktape/HTMLLIElement.bnd create mode 100644 content/handlers/javascript/duktape/HTMLLabelElement.bnd create mode 100644 content/handlers/javascript/duktape/HTMLLegendElement.bnd create mode 100644 content/handlers/javascript/duktape/HTMLLinkElement.bnd create mode 100644 content/handlers/javascript/duktape/HTMLMapElement.bnd create mode 100644 content/handlers/javascript/duktape/HTMLMarqueeElement.bnd create mode 100644 content/handlers/javascript/duktape/HTMLMenuElement.bnd create mode 100644 content/handlers/javascript/duktape/HTMLMetaElement.bnd create mode 100644 content/handlers/javascript/duktape/HTMLOListElement.bnd create mode 100644 content/handlers/javascript/duktape/HTMLObjectElement.bnd create mode 100644 content/handlers/javascript/duktape/HTMLOptionElement.bnd create mode 100644 content/handlers/javascript/duktape/HTMLParagraphElement.bnd create mode 100644 content/handlers/javascript/duktape/HTMLParamElement.bnd create mode 100644 content/handlers/javascript/duktape/HTMLPreElement.bnd create mode 100644 content/handlers/javascript/duktape/HTMLQuoteElement.bnd create mode 100644 content/handlers/javascript/duktape/HTMLScriptElement.bnd create mode 100644 content/handlers/javascript/duktape/HTMLSelectElement.bnd create mode 100644 content/handlers/javascript/duktape/HTMLStyleElement.bnd create mode 100644 content/handlers/javascript/duktape/HTMLTableCaptionElement.bnd create mode 100644 content/handlers/javascript/duktape/HTMLTableCellElement.bnd create mode 100644 content/handlers/javascript/duktape/HTMLTableColElement.bnd create mode 100644 content/handlers/javascript/duktape/HTMLTableElement.bnd create mode 100644 content/handlers/javascript/duktape/HTMLTableRowElement.bnd create mode 100644 content/handlers/javascript/duktape/HTMLTableSectionElement.bnd create mode 100644 content/handlers/javascript/duktape/HTMLTextAreaElement.bnd create mode 100644 content/handlers/javascript/duktape/HTMLTitleElement.bnd create mode 100644 content/handlers/javascript/duktape/Location.bnd create mode 100644 content/handlers/javascript/duktape/Makefile create mode 100644 content/handlers/javascript/duktape/Navigator.bnd create mode 100644 content/handlers/javascript/duktape/Node.bnd create mode 100644 content/handlers/javascript/duktape/NodeList.bnd create mode 100644 content/handlers/javascript/duktape/Window.bnd create mode 100644 content/handlers/javascript/duktape/duk_config.h create mode 100644 content/handlers/javascript/duktape/duk_custom.h create mode 100644 content/handlers/javascript/duktape/dukky.c create mode 100644 content/handlers/javascript/duktape/dukky.h create mode 100644 content/handlers/javascript/duktape/duktape.c create mode 100644 content/handlers/javascript/duktape/duktape.h create mode 100644 content/handlers/javascript/duktape/netsurf.bnd create mode 100644 content/handlers/javascript/fetcher.c create mode 100644 content/handlers/javascript/fetcher.h create mode 100644 content/handlers/javascript/js.h create mode 100644 content/handlers/javascript/none/Makefile create mode 100644 content/handlers/javascript/none/none.c (limited to 'content') diff --git a/content/Makefile b/content/Makefile index 02490618a..b4353ba95 100644 --- a/content/Makefile +++ b/content/Makefile @@ -8,10 +8,11 @@ ifeq ($(NETSURF_FS_BACKING_STORE),YES) S_CONTENT += fs_backing_store.c endif -S_CONTENT := $(addprefix content/,$(S_CONTENT)) # Content fetchers sources include content/fetchers/Makefile # Content handlers include content/handlers/Makefile + +S_CONTENT := $(addprefix content/,$(S_CONTENT)) diff --git a/content/handlers/Makefile b/content/handlers/Makefile index e57fc1119..2f2da3aed 100644 --- a/content/handlers/Makefile +++ b/content/handlers/Makefile @@ -6,6 +6,11 @@ S_IMAGE := $(addprefix content/handlers/image/,$(S_IMAGE)) # CSS sources include content/handlers/css/Makefile -S_CSS := $(addprefix content/handlers/css/,$(S_CSS)) +S_CONTENT += $(addprefix handlers/css/,$(S_CSS)) + +# Javascript source +include content/handlers/javascript/Makefile + +S_CONTENT += $(addprefix handlers/javascript/,$(S_JAVASCRIPT)) INCLUDE_DIRS += content/handlers diff --git a/content/handlers/javascript/Makefile b/content/handlers/javascript/Makefile new file mode 100644 index 000000000..5cd0fc36b --- /dev/null +++ b/content/handlers/javascript/Makefile @@ -0,0 +1,18 @@ +# +# NetSurf javascript source file inclusion +# +# Included by Makefile +# + +S_JAVASCRIPT_BINDING:= + +ifeq ($(NETSURF_USE_DUKTAPE),YES) +# Duktape +include content/handlers/javascript/duktape/Makefile +else +# None +include content/handlers/javascript/none/Makefile +endif + +# Fetcher for javascript scheme is always required +S_JAVASCRIPT += fetcher.c diff --git a/content/handlers/javascript/WebIDL/Makefile b/content/handlers/javascript/WebIDL/Makefile new file mode 100644 index 000000000..7d901cee1 --- /dev/null +++ b/content/handlers/javascript/WebIDL/Makefile @@ -0,0 +1,57 @@ +#!/bin/make +# +# Create the WebIDL for core DOM and HTML spec directly from +# downloaded specifications. The resulting IDL is pretty close but +# should be manually cleaned up and tagged with the retrival date and +# source URL +# +# The dom spec has an index on the end that contains all the IDL a +# second time! be aware htis needs removing or your IDL will have two +# copies of all interfaces which is bad. +# +# needs debian packages: curl w3m tidy html-xml-utils +# +# Copyright 2012 Vincent Sanders +# MIT licenced + +.PHONY:all clean + +all: dom.idl html.idl uievents.idl cssom.idl + +.INTERMEDIATE:dom-spec.html dom-spec.xml dom-idl.html +.INTERMEDIATE:html-spec.html html-spec.xml html-idl.html +.INTERMEDIATE:uievents-spec.html uievents-spec.xml uievents-idl.html +.INTERMEDIATE:urlutils-spec.html urlutils-spec.xml urlutils-idl.html +.INTERMEDIATE:cssom-spec.html cssom-spec.xml cssom-idl.html + +dom-spec.html: + curl -s https://dom.spec.whatwg.org/ -o $@ + +html-spec.html: + curl -s https://html.spec.whatwg.org/ -o $@ + +uievents-spec.html: + curl -s http://www.w3.org/TR/uievents/ -o $@ + +urlutils-spec.html: + curl -s https://url.spec.whatwg.org/ -o $@ + +cssom-spec.html: + curl -s https://drafts.csswg.org/cssom-1/ -o $@ + +%-spec.xml: %-spec.html + -tidy -q -f $@.errors --new-blocklevel-tags header,hgroup,figure,time,main,nav,svg,rect,text,image,mark,figcaption,section,g,path,circle -o $@ -asxml $< + +%-idl.html: %-spec.xml + hxselect 'pre[class="idl"]' < $< > $@ + +%.idl: %-idl.html + @echo "// Retrived from " >$@ + @echo "// $$(date)" >>$@ + @echo "" >>$@ + @echo "" >>$@ + cat $< | w3m -dump -T text/html >>$@ + + +clean: + ${RM} dom.idl html.idl uievents.idl dom-spec.html dom-spec.xml dom-idl.html html-spec.html html-spec.xml html-idl.html uievents-spec.html uievents-spec.xml uievents-idl.html uievents-spec.xml.errors diff --git a/content/handlers/javascript/WebIDL/console.idl b/content/handlers/javascript/WebIDL/console.idl new file mode 100644 index 000000000..5a3d9eb27 --- /dev/null +++ b/content/handlers/javascript/WebIDL/console.idl @@ -0,0 +1,24 @@ +// de facto set of features for console object +// https://developer.mozilla.org/en-US/docs/DOM/console +// http://msdn.microsoft.com/en-us/library/dd565625%28v=vs.85%29.aspx#consolelogging +// 31st October +// Yay for non-standard standards + +interface Console { + void debug(DOMString msg, Substitition... subst); + void dir(JSObject object); + void error(DOMString msg, Substitition... subst); + void group(); + void groupCollapsed(); + void groupEnd(); + void info(DOMString msg, Substitition... subst); + void log(DOMString msg, Substitition... subst); + void time(DOMString timerName); + void timeEnd(DOMString timerName); + void trace(); + void warn(DOMString msg, Substitition... subst); +}; + +partial interface Window { + readonly attribute Console console; +}; \ No newline at end of file diff --git a/content/handlers/javascript/WebIDL/cssom.idl b/content/handlers/javascript/WebIDL/cssom.idl new file mode 100644 index 000000000..95c97e42a --- /dev/null +++ b/content/handlers/javascript/WebIDL/cssom.idl @@ -0,0 +1,157 @@ +// Retrived from https://drafts.csswg.org/cssom-1/ +// Wed Nov 4 15:39:43 GMT 2015 +// Removed duplicate IDL from appendix + + +[ArrayClass]interface MediaList { + [TreatNullAs=EmptyString] stringifier attribute DOMString mediaText; + readonly attribute unsigned long length; + getter DOMString? item(unsigned long index ); + void appendMedium(DOMString medium ); + void deleteMedium(DOMString medium ); +}; + +interface StyleSheet { + readonly attribute DOMString type; + readonly attribute DOMString? href; + readonly attribute (Element or ProcessingInstruction)? ownerNode; + readonly attribute StyleSheet? parentStyleSheet; + readonly attribute DOMString? title; + [SameObject, PutForwards=mediaText] readonly attribute MediaList media; + attribute boolean disabled; +}; + +interface CSSStyleSheet : StyleSheet { + readonly attribute CSSRule? ownerRule; + [SameObject] readonly attribute CSSRuleList cssRules; + unsigned long insertRule(DOMString rule , unsigned long index ); + void deleteRule(unsigned long index ); +}; + +[ArrayClass]interface StyleSheetList { + getter StyleSheet? item(unsigned long index ); + readonly attribute unsigned long length; +}; + +partial interface Document { + [SameObject] readonly attribute StyleSheetList styleSheets; + attribute DOMString? selectedStyleSheetSet; + readonly attribute DOMString? lastStyleSheetSet; + readonly attribute DOMString? preferredStyleSheetSet; + readonly attribute DOMString[] styleSheetSets; + void enableStyleSheetsForSet(DOMString? name ); +}; + +[NoInterfaceObject]interface LinkStyle { + readonly attribute StyleSheet? sheet; +}; + +ProcessingInstruction implements LinkStyle; + +[ArrayClass]interface CSSRuleList { + getter CSSRule? item(unsigned long index ); + readonly attribute unsigned long length; +}; + +interface CSSRule { + const unsigned short STYLE_RULE = 1; + const unsigned short CHARSET_RULE = 2; // historical + const unsigned short IMPORT_RULE = 3; + const unsigned short MEDIA_RULE = 4; + const unsigned short FONT_FACE_RULE = 5; + const unsigned short PAGE_RULE = 6; + const unsigned short MARGIN_RULE = 9; + const unsigned short NAMESPACE_RULE = 10; + readonly attribute unsigned short type; + attribute DOMString cssText; + readonly attribute CSSRule? parentRule; + readonly attribute CSSStyleSheet? parentStyleSheet; +}; + +interface CSSStyleRule : CSSRule { + attribute DOMString selectorText; + [SameObject, PutForwards=cssText] readonly attribute CSSStyleDeclaration style; +}; + +interface CSSImportRule : CSSRule { + readonly attribute DOMString href; + [SameObject, PutForwards=mediaText] readonly attribute MediaList media; + [SameObject] readonly attribute CSSStyleSheet styleSheet; +}; + +interface CSSGroupingRule : CSSRule { + [SameObject] readonly attribute CSSRuleList cssRules; + unsigned long insertRule(DOMString rule , unsigned long index ); + void deleteRule(unsigned long index ); +}; + +interface CSSMediaRule : CSSGroupingRule { + [SameObject, PutForwards=mediaText] readonly attribute MediaList media ; +}; + +interface CSSPageRule : CSSGroupingRule { + attribute DOMString selectorText ; + [SameObject, PutForwards=cssText] readonly attribute CSSStyleDeclaration style ; +}; + +interface CSSMarginRule : CSSRule { + readonly attribute DOMString name; + [SameObject, PutForwards=cssText] readonly attribute CSSStyleDeclaration style; +}; + +interface CSSNamespaceRule : CSSRule { + readonly attribute DOMString namespaceURI; + readonly attribute DOMString prefix; +}; + +interface CSSStyleDeclaration { + attribute DOMString cssText; + readonly attribute unsigned long length; + getter DOMString item(unsigned long index ); + DOMString getPropertyValue(DOMString property ); + DOMString getPropertyPriority(DOMString property ); + void setProperty(DOMString property , [TreatNullAs=EmptyString] DOMString value , [TreatNullAs=EmptyString] optional DOMString priority = ""); + void setPropertyValue(DOMString property , [TreatNullAs=EmptyString] DOMString value ); + void setPropertyPriority(DOMString property , [TreatNullAs=EmptyString] DOMString priority ); + DOMString removeProperty(DOMString property ); + readonly attribute CSSRule? parentRule; + [TreatNullAs=EmptyString] attribute DOMString cssFloat; +}; + +partial interface CSSStyleDeclaration { + [TreatNullAs=EmptyString] attribute DOMString _dashed_attribute ; +}; + +[NoInterfaceObject]interface ElementCSSInlineStyle { + [SameObject, PutForwards=cssText] readonly attribute CSSStyleDeclaration style; +}; + +HTMLElement implements ElementCSSInlineStyle; + +SVGElement implements ElementCSSInlineStyle; + +partial interface Window { + [NewObject] CSSStyleDeclaration getComputedStyle(Element elt , optional DOMString? pseudoElt ); +}; + +[NoInterfaceObject]interface GetStyleUtils { + [SameObject] readonly attribute CSSStyleDeclaration cascadedStyle; + [SameObject] readonly attribute CSSStyleDeclaration defaultStyle; + [SameObject] readonly attribute CSSStyleDeclaration rawComputedStyle; + [SameObject] readonly attribute CSSStyleDeclaration usedStyle; +}; + +partial interface Element { + PseudoElement? pseudo(DOMString pseudoElt ); +}; + +Element implements GetStyleUtils; + +interface PseudoElement { +}; + +PseudoElement implements GetStyleUtils; + +interface CSS { + static DOMString escape(DOMString ident ); +}; diff --git a/content/handlers/javascript/WebIDL/dom-parsing.idl b/content/handlers/javascript/WebIDL/dom-parsing.idl new file mode 100644 index 000000000..d2581328e --- /dev/null +++ b/content/handlers/javascript/WebIDL/dom-parsing.idl @@ -0,0 +1,35 @@ +// Retrived from http://www.w3.org/TR/DOM-Parsing/ +// Wed Nov 4 15:39:43 GMT 2015 +// Manually extracted IDL + +enum SupportedType { + "text/html", + "text/xml", + "application/xml", + "application/xhtml+xml", + "image/svg+xml" +}; + +[Constructor] +interface DOMParser { + [NewObject] + Document parseFromString (DOMString str, SupportedType type); +}; + +[Constructor] +interface XMLSerializer { + DOMString serializeToString (Node root); +}; + +partial interface Element { + [TreatNullAs=EmptyString] + attribute DOMString innerHTML; + [TreatNullAs=EmptyString] + attribute DOMString outerHTML; + void insertAdjacentHTML (DOMString position, DOMString text); +}; + +partial interface Range { + [NewObject] + DocumentFragment createContextualFragment (DOMString fragment); +}; diff --git a/content/handlers/javascript/WebIDL/dom.idl b/content/handlers/javascript/WebIDL/dom.idl new file mode 100644 index 000000000..1c9e75bd8 --- /dev/null +++ b/content/handlers/javascript/WebIDL/dom.idl @@ -0,0 +1,479 @@ +// DOM web IDL +// Retrived from https://dom.spec.whatwg.org/ +// Sat Jul 18 2015 + + +[Constructor(DOMString type, optional EventInit eventInitDict), + Exposed=(Window,Worker)] +interface Event { + readonly attribute DOMString type; + readonly attribute EventTarget? target; + readonly attribute EventTarget? currentTarget; + + const unsigned short NONE = 0; + const unsigned short CAPTURING_PHASE = 1; + const unsigned short AT_TARGET = 2; + const unsigned short BUBBLING_PHASE = 3; + readonly attribute unsigned short eventPhase; + + void stopPropagation(); + void stopImmediatePropagation(); + + readonly attribute boolean bubbles; + readonly attribute boolean cancelable; + void preventDefault(); + readonly attribute boolean defaultPrevented; + + [Unforgeable] readonly attribute boolean isTrusted; + readonly attribute DOMTimeStamp timeStamp; + + void initEvent(DOMString type, boolean bubbles, boolean cancelable); +}; + +dictionary EventInit { + boolean bubbles = false; + boolean cancelable = false; +}; + +[Constructor(DOMString type, optional CustomEventInit eventInitDict), + Exposed=(Window,Worker)] +interface CustomEvent : Event { + readonly attribute any detail; + + void initCustomEvent(DOMString type, boolean bubbles, boolean cancelable, any detail); +}; + +dictionary CustomEventInit : EventInit { + any detail = null; +}; + +[Exposed=(Window,Worker)] +interface EventTarget { + void addEventListener(DOMString type, EventListener? callback, optional boolean capture = false); + void removeEventListener(DOMString type, EventListener? callback, optional boolean capture = false); + boolean dispatchEvent(Event event); +}; + +callback interface EventListener { + void handleEvent(Event event); +}; + +[NoInterfaceObject, + Exposed=Window] +interface NonElementParentNode { + Element? getElementById(DOMString elementId); +}; +Document implements NonElementParentNode; +DocumentFragment implements NonElementParentNode; + +[NoInterfaceObject, + Exposed=Window] +interface ParentNode { + [SameObject] readonly attribute HTMLCollection children; + readonly attribute Element? firstElementChild; + readonly attribute Element? lastElementChild; + readonly attribute unsigned long childElementCount; + + [Unscopeable] void prepend((Node or DOMString)... nodes); + [Unscopeable] void append((Node or DOMString)... nodes); + + [Unscopeable] Element? query(DOMString relativeSelectors); + [NewObject, Unscopeable] Elements queryAll(DOMString relativeSelectors); + Element? querySelector(DOMString selectors); + [NewObject] NodeList querySelectorAll(DOMString selectors); +}; +Document implements ParentNode; +DocumentFragment implements ParentNode; +Element implements ParentNode; + +[NoInterfaceObject, + Exposed=Window] +interface NonDocumentTypeChildNode { + readonly attribute Element? previousElementSibling; + readonly attribute Element? nextElementSibling; +}; +Element implements NonDocumentTypeChildNode; +CharacterData implements NonDocumentTypeChildNode; + +[NoInterfaceObject, + Exposed=Window] +interface ChildNode { + [Unscopeable] void before((Node or DOMString)... nodes); + [Unscopeable] void after((Node or DOMString)... nodes); + [Unscopeable] void replaceWith((Node or DOMString)... nodes); + [Unscopeable] void remove(); +}; +DocumentType implements ChildNode; +Element implements ChildNode; +CharacterData implements ChildNode; + +//class Elements extends Array { +// Element? query(DOMString relativeSelectors); +// Elements queryAll(DOMString relativeSelectors); +//}; + +[Exposed=Window] +interface NodeList { + getter Node? item(unsigned long index); + readonly attribute unsigned long length; + iterable; +}; + +[Exposed=Window] +interface HTMLCollection { + readonly attribute unsigned long length; + getter Element? item(unsigned long index); + getter Element? namedItem(DOMString name); +}; + +[Constructor(MutationCallback callback)] +interface MutationObserver { + void observe(Node target, MutationObserverInit options); + void disconnect(); + sequence takeRecords(); +}; + +callback MutationCallback = void (sequence mutations, MutationObserver observer); + +dictionary MutationObserverInit { + boolean childList = false; + boolean attributes; + boolean characterData; + boolean subtree = false; + boolean attributeOldValue; + boolean characterDataOldValue; + sequence attributeFilter; +}; + +[Exposed=Window] +interface MutationRecord { + readonly attribute DOMString type; + readonly attribute Node target; + [SameObject] readonly attribute NodeList addedNodes; + [SameObject] readonly attribute NodeList removedNodes; + readonly attribute Node? previousSibling; + readonly attribute Node? nextSibling; + readonly attribute DOMString? attributeName; + readonly attribute DOMString? attributeNamespace; + readonly attribute DOMString? oldValue; +}; + +[Exposed=Window] +interface Node : EventTarget { + const unsigned short ELEMENT_NODE = 1; + const unsigned short ATTRIBUTE_NODE = 2; // historical + const unsigned short TEXT_NODE = 3; + const unsigned short CDATA_SECTION_NODE = 4; // historical + const unsigned short ENTITY_REFERENCE_NODE = 5; // historical + const unsigned short ENTITY_NODE = 6; // historical + const unsigned short PROCESSING_INSTRUCTION_NODE = 7; + const unsigned short COMMENT_NODE = 8; + const unsigned short DOCUMENT_NODE = 9; + const unsigned short DOCUMENT_TYPE_NODE = 10; + const unsigned short DOCUMENT_FRAGMENT_NODE = 11; + const unsigned short NOTATION_NODE = 12; // historical + readonly attribute unsigned short nodeType; + readonly attribute DOMString nodeName; + + readonly attribute DOMString? baseURI; + + readonly attribute Document? ownerDocument; + readonly attribute Node? parentNode; + readonly attribute Element? parentElement; + boolean hasChildNodes(); + [SameObject] readonly attribute NodeList childNodes; + readonly attribute Node? firstChild; + readonly attribute Node? lastChild; + readonly attribute Node? previousSibling; + readonly attribute Node? nextSibling; + + attribute DOMString? nodeValue; + attribute DOMString? textContent; + void normalize(); + + [NewObject] Node cloneNode(optional boolean deep = false); + boolean isEqualNode(Node? otherNode); + + const unsigned short DOCUMENT_POSITION_DISCONNECTED = 0x01; + const unsigned short DOCUMENT_POSITION_PRECEDING = 0x02; + const unsigned short DOCUMENT_POSITION_FOLLOWING = 0x04; + const unsigned short DOCUMENT_POSITION_CONTAINS = 0x08; + const unsigned short DOCUMENT_POSITION_CONTAINED_BY = 0x10; + const unsigned short DOCUMENT_POSITION_IMPLEMENTATION_SPECIFIC = 0x20; + unsigned short compareDocumentPosition(Node other); + boolean contains(Node? other); + + DOMString? lookupPrefix(DOMString? namespace); + DOMString? lookupNamespaceURI(DOMString? prefix); + boolean isDefaultNamespace(DOMString? namespace); + + Node insertBefore(Node node, Node? child); + Node appendChild(Node node); + Node replaceChild(Node node, Node child); + Node removeChild(Node child); +}; + +[Constructor, + Exposed=Window] +interface Document : Node { + [SameObject] readonly attribute DOMImplementation implementation; + readonly attribute DOMString URL; + readonly attribute DOMString documentURI; + readonly attribute DOMString origin; + readonly attribute DOMString compatMode; + readonly attribute DOMString characterSet; + readonly attribute DOMString inputEncoding; // legacy alias of .characterSet + readonly attribute DOMString contentType; + + readonly attribute DocumentType? doctype; + readonly attribute Element? documentElement; + HTMLCollection getElementsByTagName(DOMString localName); + HTMLCollection getElementsByTagNameNS(DOMString? namespace, DOMString localName); + HTMLCollection getElementsByClassName(DOMString classNames); + + [NewObject] Element createElement(DOMString localName); + [NewObject] Element createElementNS(DOMString? namespace, DOMString qualifiedName); + [NewObject] DocumentFragment createDocumentFragment(); + [NewObject] Text createTextNode(DOMString data); + [NewObject] Comment createComment(DOMString data); + [NewObject] ProcessingInstruction createProcessingInstruction(DOMString target, DOMString data); + + [NewObject] Node importNode(Node node, optional boolean deep = false); + Node adoptNode(Node node); + + [NewObject] Attr createAttribute(DOMString localName); + [NewObject] Attr createAttributeNS(DOMString? namespace, DOMString name); + + [NewObject] Event createEvent(DOMString interface); + + [NewObject] Range createRange(); + + // NodeFilter.SHOW_ALL = 0xFFFFFFFF + [NewObject] NodeIterator createNodeIterator(Node root, optional unsigned long whatToShow = 0xFFFFFFFF, optional NodeFilter? filter = null); + [NewObject] TreeWalker createTreeWalker(Node root, optional unsigned long whatToShow = 0xFFFFFFFF, optional NodeFilter? filter = null); +}; + +[Exposed=Window] +interface XMLDocument : Document {}; + +[Exposed=Window] +interface DOMImplementation { + [NewObject] DocumentType createDocumentType(DOMString qualifiedName, DOMString publicId, DOMString systemId); + [NewObject] XMLDocument createDocument(DOMString? namespace, [TreatNullAs=EmptyString] DOMString qualifiedName, optional DocumentType? doctype = null); + [NewObject] Document createHTMLDocument(optional DOMString title); + + boolean hasFeature(); // useless; always returns true +}; + +[Constructor, + Exposed=Window] +interface DocumentFragment : Node { +}; + +[Exposed=Window] +interface DocumentType : Node { + readonly attribute DOMString name; + readonly attribute DOMString publicId; + readonly attribute DOMString systemId; +}; + +[Exposed=Window] +interface Element : Node { + readonly attribute DOMString? namespaceURI; + readonly attribute DOMString? prefix; + readonly attribute DOMString localName; + readonly attribute DOMString tagName; + + attribute DOMString id; + attribute DOMString className; + [SameObject] readonly attribute DOMTokenList classList; + + boolean hasAttributes(); + [SameObject] readonly attribute NamedNodeMap attributes; + DOMString? getAttribute(DOMString name); + DOMString? getAttributeNS(DOMString? namespace, DOMString localName); + void setAttribute(DOMString name, DOMString value); + void setAttributeNS(DOMString? namespace, DOMString name, DOMString value); + void removeAttribute(DOMString name); + void removeAttributeNS(DOMString? namespace, DOMString localName); + boolean hasAttribute(DOMString name); + boolean hasAttributeNS(DOMString? namespace, DOMString localName); + + Attr? getAttributeNode(DOMString name); + Attr? getAttributeNodeNS(DOMString? namespace, DOMString localName); + Attr? setAttributeNode(Attr attr); + Attr? setAttributeNodeNS(Attr attr); + Attr removeAttributeNode(Attr attr); + + Element? closest(DOMString selectors); + boolean matches(DOMString selectors); + + HTMLCollection getElementsByTagName(DOMString localName); + HTMLCollection getElementsByTagNameNS(DOMString? namespace, DOMString localName); + HTMLCollection getElementsByClassName(DOMString classNames); +}; +[Exposed=Window] +interface NamedNodeMap { + readonly attribute unsigned long length; + getter Attr? item(unsigned long index); + getter Attr? getNamedItem(DOMString name); + Attr? getNamedItemNS(DOMString? namespace, DOMString localName); + Attr? setNamedItem(Attr attr); + Attr? setNamedItemNS(Attr attr); + Attr removeNamedItem(DOMString name); + Attr removeNamedItemNS(DOMString? namespace, DOMString localName); +}; + +[Exposed=Window] +interface Attr { + readonly attribute DOMString? namespaceURI; + readonly attribute DOMString? prefix; + readonly attribute DOMString localName; + readonly attribute DOMString name; + attribute DOMString value; + [TreatNullAs=EmptyString] attribute DOMString nodeValue; // legacy alias of .value + [TreatNullAs=EmptyString] attribute DOMString textContent; // legacy alias of .value + + readonly attribute Element? ownerElement; + + readonly attribute boolean specified; // useless; always returns true +}; +[Exposed=Window] +interface CharacterData : Node { + [TreatNullAs=EmptyString] attribute DOMString data; + readonly attribute unsigned long length; + DOMString substringData(unsigned long offset, unsigned long count); + void appendData(DOMString data); + void insertData(unsigned long offset, DOMString data); + void deleteData(unsigned long offset, unsigned long count); + void replaceData(unsigned long offset, unsigned long count, DOMString data); +}; + +[Constructor(optional DOMString data = ""), + Exposed=Window] +interface Text : CharacterData { + [NewObject] Text splitText(unsigned long offset); + readonly attribute DOMString wholeText; +}; +[Exposed=Window] +interface ProcessingInstruction : CharacterData { + readonly attribute DOMString target; +}; +[Constructor(optional DOMString data = ""), + Exposed=Window] +interface Comment : CharacterData { +}; + +[Constructor, + Exposed=Window] +interface Range { + readonly attribute Node startContainer; + readonly attribute unsigned long startOffset; + readonly attribute Node endContainer; + readonly attribute unsigned long endOffset; + readonly attribute boolean collapsed; + readonly attribute Node commonAncestorContainer; + + void setStart(Node node, unsigned long offset); + void setEnd(Node node, unsigned long offset); + void setStartBefore(Node node); + void setStartAfter(Node node); + void setEndBefore(Node node); + void setEndAfter(Node node); + void collapse(optional boolean toStart = false); + void selectNode(Node node); + void selectNodeContents(Node node); + + const unsigned short START_TO_START = 0; + const unsigned short START_TO_END = 1; + const unsigned short END_TO_END = 2; + const unsigned short END_TO_START = 3; + short compareBoundaryPoints(unsigned short how, Range sourceRange); + + void deleteContents(); + [NewObject] DocumentFragment extractContents(); + [NewObject] DocumentFragment cloneContents(); + void insertNode(Node node); + void surroundContents(Node newParent); + + [NewObject] Range cloneRange(); + void detach(); + + boolean isPointInRange(Node node, unsigned long offset); + short comparePoint(Node node, unsigned long offset); + + boolean intersectsNode(Node node); + + stringifier; +}; + +[Exposed=Window] +interface NodeIterator { + [SameObject] readonly attribute Node root; + readonly attribute Node referenceNode; + readonly attribute boolean pointerBeforeReferenceNode; + readonly attribute unsigned long whatToShow; + readonly attribute NodeFilter? filter; + + Node? nextNode(); + Node? previousNode(); + + void detach(); +}; + +[Exposed=Window] +interface TreeWalker { + [SameObject] readonly attribute Node root; + readonly attribute unsigned long whatToShow; + readonly attribute NodeFilter? filter; + attribute Node currentNode; + + Node? parentNode(); + Node? firstChild(); + Node? lastChild(); + Node? previousSibling(); + Node? nextSibling(); + Node? previousNode(); + Node? nextNode(); +}; +[Exposed=Window] +callback interface NodeFilter { + // Constants for acceptNode() + const unsigned short FILTER_ACCEPT = 1; + const unsigned short FILTER_REJECT = 2; + const unsigned short FILTER_SKIP = 3; + + // Constants for whatToShow + const unsigned long SHOW_ALL = 0xFFFFFFFF; + const unsigned long SHOW_ELEMENT = 0x1; + const unsigned long SHOW_ATTRIBUTE = 0x2; // historical + const unsigned long SHOW_TEXT = 0x4; + const unsigned long SHOW_CDATA_SECTION = 0x8; // historical + const unsigned long SHOW_ENTITY_REFERENCE = 0x10; // historical + const unsigned long SHOW_ENTITY = 0x20; // historical + const unsigned long SHOW_PROCESSING_INSTRUCTION = 0x40; + const unsigned long SHOW_COMMENT = 0x80; + const unsigned long SHOW_DOCUMENT = 0x100; + const unsigned long SHOW_DOCUMENT_TYPE = 0x200; + const unsigned long SHOW_DOCUMENT_FRAGMENT = 0x400; + const unsigned long SHOW_NOTATION = 0x800; // historical + + unsigned short acceptNode(Node node); +}; + +interface DOMTokenList { + readonly attribute unsigned long length; + getter DOMString? item(unsigned long index); + boolean contains(DOMString token); + void add(DOMString... tokens); + void remove(DOMString... tokens); + boolean toggle(DOMString token, optional boolean force); + stringifier; + iterable; +}; + +interface DOMSettableTokenList : DOMTokenList { + attribute DOMString value; +}; + + diff --git a/content/handlers/javascript/WebIDL/html.idl b/content/handlers/javascript/WebIDL/html.idl new file mode 100644 index 000000000..73112f002 --- /dev/null +++ b/content/handlers/javascript/WebIDL/html.idl @@ -0,0 +1,2288 @@ +// HTML web IDL +// Retrived from https://html.spec.whatwg.org/ +// Mon Oct 5 2015 + + +typedef (Int8Array or Uint8Array or Uint8ClampedArray or + Int16Array or Uint16Array or + Int32Array or Uint32Array or + Float32Array or Float64Array or + DataView) ArrayBufferView; + +interface HTMLAllCollection { + readonly attribute unsigned long length; + getter Element? item(unsigned long index); + (HTMLCollection or Element)? item(DOMString name); + legacycaller getter (HTMLCollection or Element)? namedItem(DOMString name); +}; + +interface HTMLFormControlsCollection : HTMLCollection { + // inherits length and item() + getter (RadioNodeList or Element)? namedItem(DOMString name); // shadows inherited namedItem() +}; + +interface RadioNodeList : NodeList { + attribute DOMString value; +}; + +interface HTMLOptionsCollection : HTMLCollection { + // inherits item(), namedItem() + attribute unsigned long length; // shadows inherited length + setter void (unsigned long index, HTMLOptionElement? option); + void add((HTMLOptionElement or HTMLOptGroupElement) element, optional (HTMLElement or long)? before = null); + void remove(long index); + attribute long selectedIndex; +}; + +[OverrideBuiltins, Exposed=(Window,Worker)] +interface DOMStringMap { + getter DOMString (DOMString name); + setter void (DOMString name, DOMString value); + deleter void (DOMString name); +}; + +interface DOMElementMap { + getter Element (DOMString name); + setter void (DOMString name, Element value); + deleter void (DOMString name); +}; + +typedef (ArrayBuffer or CanvasProxy or MessagePort) Transferable; + +callback FileCallback = void (File file); + +enum DocumentReadyState { "loading", "interactive", "complete" }; + +[OverrideBuiltins] +partial /*sealed*/ interface Document { + // resource metadata management + [PutForwards=href, Unforgeable] readonly attribute Location? location; + attribute DOMString domain; + readonly attribute DOMString referrer; + attribute DOMString cookie; + readonly attribute DOMString lastModified; + readonly attribute DocumentReadyState readyState; + + // DOM tree accessors + getter object (DOMString name); + attribute DOMString title; + attribute DOMString dir; + attribute HTMLElement? body; + readonly attribute HTMLHeadElement? head; + [SameObject] readonly attribute HTMLCollection images; + [SameObject] readonly attribute HTMLCollection embeds; + [SameObject] readonly attribute HTMLCollection plugins; + [SameObject] readonly attribute HTMLCollection links; + [SameObject] readonly attribute HTMLCollection forms; + [SameObject] readonly attribute HTMLCollection scripts; + NodeList getElementsByName(DOMString elementName); + [SameObject] readonly attribute DOMElementMap cssElementMap; + readonly attribute HTMLScriptElement? currentScript; + + // dynamic markup insertion + Document open(optional DOMString type = "text/html", optional DOMString replace = ""); + WindowProxy open(DOMString url, DOMString name, DOMString features, optional boolean replace = false); + void close(); + void write(DOMString... text); + void writeln(DOMString... text); + + // user interaction + readonly attribute WindowProxy? defaultView; + readonly attribute Element? activeElement; + boolean hasFocus(); + attribute DOMString designMode; + boolean execCommand(DOMString commandId, optional boolean showUI = false, optional DOMString value = ""); + boolean queryCommandEnabled(DOMString commandId); + boolean queryCommandIndeterm(DOMString commandId); + boolean queryCommandState(DOMString commandId); + boolean queryCommandSupported(DOMString commandId); + DOMString queryCommandValue(DOMString commandId); + readonly attribute HTMLCollection commands; + + // special event handler IDL attributes that only apply to Document objects + [LenientThis] attribute EventHandler onreadystatechange; + + // also has obsolete members +}; +Document implements GlobalEventHandlers; + +partial interface XMLDocument { + boolean load(DOMString url); +}; + +interface HTMLElement : Element { + // metadata attributes + attribute DOMString title; + attribute DOMString lang; + attribute boolean translate; + attribute DOMString dir; + [SameObject] readonly attribute DOMStringMap dataset; + + // user interaction + attribute boolean hidden; + void click(); + attribute long tabIndex; + void focus(); + void blur(); + attribute DOMString accessKey; + readonly attribute DOMString accessKeyLabel; + attribute boolean draggable; + [PutForwards=value] readonly attribute DOMSettableTokenList dropzone; + attribute HTMLMenuElement? contextMenu; + attribute boolean spellcheck; + void forceSpellCheck(); + + // command API + readonly attribute DOMString? commandType; + readonly attribute DOMString? commandLabel; + readonly attribute DOMString? commandIcon; + readonly attribute boolean? commandHidden; + readonly attribute boolean? commandDisabled; + readonly attribute boolean? commandChecked; +}; +HTMLElement implements GlobalEventHandlers; +HTMLElement implements ElementContentEditable; + +interface HTMLUnknownElement : HTMLElement { }; + +interface HTMLHtmlElement : HTMLElement { + // also has obsolete members +}; + +interface HTMLHeadElement : HTMLElement {}; + +interface HTMLTitleElement : HTMLElement { + attribute DOMString text; +}; + +interface HTMLBaseElement : HTMLElement { + attribute DOMString href; + attribute DOMString target; +}; + +interface HTMLLinkElement : HTMLElement { + attribute DOMString href; + attribute DOMString? crossOrigin; + attribute DOMString rel; + readonly attribute DOMTokenList relList; + attribute DOMString media; + attribute DOMString hreflang; + attribute DOMString type; + [PutForwards=value] readonly attribute DOMSettableTokenList sizes; + + // also has obsolete members +}; +HTMLLinkElement implements LinkStyle; + +interface HTMLMetaElement : HTMLElement { + attribute DOMString name; + attribute DOMString httpEquiv; + attribute DOMString content; + + // also has obsolete members +}; + +interface HTMLStyleElement : HTMLElement { + attribute DOMString media; + attribute DOMString nonce; + attribute DOMString type; + attribute boolean scoped; +}; +HTMLStyleElement implements LinkStyle; + +interface HTMLBodyElement : HTMLElement { + + // also has obsolete members +}; +HTMLBodyElement implements WindowEventHandlers; + +interface HTMLHeadingElement : HTMLElement { + // also has obsolete members +}; + +interface HTMLParagraphElement : HTMLElement { + // also has obsolete members +}; + +interface HTMLHRElement : HTMLElement { + // also has obsolete members +}; + +interface HTMLPreElement : HTMLElement { + // also has obsolete members +}; + +interface HTMLQuoteElement : HTMLElement { + attribute DOMString cite; +}; + +interface HTMLOListElement : HTMLElement { + attribute boolean reversed; + attribute long start; + attribute DOMString type; + + // also has obsolete members +}; + +interface HTMLUListElement : HTMLElement { + // also has obsolete members +}; + +interface HTMLLIElement : HTMLElement { + attribute long value; + + // also has obsolete members +}; + +interface HTMLDListElement : HTMLElement { + // also has obsolete members +}; + +interface HTMLDivElement : HTMLElement { + // also has obsolete members +}; + +interface HTMLAnchorElement : HTMLElement { + attribute DOMString target; + attribute DOMString download; + [PutForwards=value] readonly attribute DOMSettableTokenList ping; + attribute DOMString rel; + readonly attribute DOMTokenList relList; + attribute DOMString hreflang; + attribute DOMString type; + + attribute DOMString text; + + // also has obsolete members +}; +HTMLAnchorElement implements URLUtils; + +interface HTMLDataElement : HTMLElement { + attribute DOMString value; +}; + +interface HTMLTimeElement : HTMLElement { + attribute DOMString dateTime; +}; + +interface HTMLSpanElement : HTMLElement {}; + +interface HTMLBRElement : HTMLElement { + // also has obsolete members +}; + +interface HTMLModElement : HTMLElement { + attribute DOMString cite; + attribute DOMString dateTime; +}; + +interface HTMLPictureElement : HTMLElement {}; + +partial interface HTMLSourceElement { + attribute DOMString srcset; + attribute DOMString sizes; + attribute DOMString media; +}; + +[NamedConstructor=Image(optional unsigned long width, optional unsigned long height)] +interface HTMLImageElement : HTMLElement { + attribute DOMString alt; + attribute DOMString src; + attribute DOMString srcset; + attribute DOMString sizes; + attribute DOMString? crossOrigin; + attribute DOMString useMap; + attribute boolean isMap; + attribute unsigned long width; + attribute unsigned long height; + readonly attribute unsigned long naturalWidth; + readonly attribute unsigned long naturalHeight; + readonly attribute boolean complete; + readonly attribute DOMString currentSrc; + + // also has obsolete members +}; + +interface HTMLIFrameElement : HTMLElement { + attribute DOMString src; + attribute DOMString srcdoc; + attribute DOMString name; + [PutForwards=value] readonly attribute DOMSettableTokenList sandbox; + attribute boolean seamless; + attribute boolean allowFullscreen; + attribute DOMString width; + attribute DOMString height; + readonly attribute Document? contentDocument; + readonly attribute WindowProxy? contentWindow; + Document? getSVGDocument(); + + // also has obsolete members +}; + +interface HTMLEmbedElement : HTMLElement { + attribute DOMString src; + attribute DOMString type; + attribute DOMString width; + attribute DOMString height; + Document? getSVGDocument(); + legacycaller any (any... arguments); + + // also has obsolete members +}; + +interface HTMLObjectElement : HTMLElement { + attribute DOMString data; + attribute DOMString type; + attribute boolean typeMustMatch; + attribute DOMString name; + attribute DOMString useMap; + readonly attribute HTMLFormElement? form; + attribute DOMString width; + attribute DOMString height; + readonly attribute Document? contentDocument; + readonly attribute WindowProxy? contentWindow; + Document? getSVGDocument(); + + readonly attribute boolean willValidate; + readonly attribute ValidityState validity; + readonly attribute DOMString validationMessage; + boolean checkValidity(); + boolean reportValidity(); + void setCustomValidity(DOMString error); + + legacycaller any (any... arguments); + + // also has obsolete members +}; + +interface HTMLParamElement : HTMLElement { + attribute DOMString name; + attribute DOMString value; + + // also has obsolete members +}; + +interface HTMLVideoElement : HTMLMediaElement { + attribute unsigned long width; + attribute unsigned long height; + readonly attribute unsigned long videoWidth; + readonly attribute unsigned long videoHeight; + attribute DOMString poster; +}; + +[NamedConstructor=Audio(optional DOMString src)] +interface HTMLAudioElement : HTMLMediaElement {}; + +interface HTMLSourceElement : HTMLElement { + attribute DOMString src; + attribute DOMString type; + + // also has obsolete members +}; + +interface HTMLTrackElement : HTMLElement { + attribute DOMString kind; + attribute DOMString src; + attribute DOMString srclang; + attribute DOMString label; + attribute boolean default; + + const unsigned short NONE = 0; + const unsigned short LOADING = 1; + const unsigned short LOADED = 2; + const unsigned short ERROR = 3; + readonly attribute unsigned short readyState; + + readonly attribute TextTrack track; +}; + +enum CanPlayTypeResult { "" /* empty string */, "maybe", "probably" }; +typedef (MediaStream or MediaSource or Blob) MediaProvider; +interface HTMLMediaElement : HTMLElement { + + // error state + readonly attribute MediaError? error; + + // network state + attribute DOMString src; + attribute MediaProvider? srcObject; + readonly attribute DOMString currentSrc; + attribute DOMString? crossOrigin; + const unsigned short NETWORK_EMPTY = 0; + const unsigned short NETWORK_IDLE = 1; + const unsigned short NETWORK_LOADING = 2; + const unsigned short NETWORK_NO_SOURCE = 3; + readonly attribute unsigned short networkState; + attribute DOMString preload; + readonly attribute TimeRanges buffered; + void load(); + CanPlayTypeResult canPlayType(DOMString type); + + // ready state + const unsigned short HAVE_NOTHING = 0; + const unsigned short HAVE_METADATA = 1; + const unsigned short HAVE_CURRENT_DATA = 2; + const unsigned short HAVE_FUTURE_DATA = 3; + const unsigned short HAVE_ENOUGH_DATA = 4; + readonly attribute unsigned short readyState; + readonly attribute boolean seeking; + + // playback state + attribute double currentTime; + void fastSeek(double time); + readonly attribute unrestricted double duration; + Date getStartDate(); + readonly attribute boolean paused; + attribute double defaultPlaybackRate; + attribute double playbackRate; + readonly attribute TimeRanges played; + readonly attribute TimeRanges seekable; + readonly attribute boolean ended; + attribute boolean autoplay; + attribute boolean loop; + void play(); + void pause(); + + // media controller + attribute DOMString mediaGroup; + attribute MediaController? controller; + + // controls + attribute boolean controls; + attribute double volume; + attribute boolean muted; + attribute boolean defaultMuted; + + // tracks + [SameObject] readonly attribute AudioTrackList audioTracks; + [SameObject] readonly attribute VideoTrackList videoTracks; + [SameObject] readonly attribute TextTrackList textTracks; + TextTrack addTextTrack(TextTrackKind kind, optional DOMString label = "", optional DOMString language = ""); +}; + +interface MediaError { + const unsigned short MEDIA_ERR_ABORTED = 1; + const unsigned short MEDIA_ERR_NETWORK = 2; + const unsigned short MEDIA_ERR_DECODE = 3; + const unsigned short MEDIA_ERR_SRC_NOT_SUPPORTED = 4; + readonly attribute unsigned short code; +}; + +interface AudioTrackList : EventTarget { + readonly attribute unsigned long length; + getter AudioTrack (unsigned long index); + AudioTrack? getTrackById(DOMString id); + + attribute EventHandler onchange; + attribute EventHandler onaddtrack; + attribute EventHandler onremovetrack; +}; + +interface AudioTrack { + readonly attribute DOMString id; + readonly attribute DOMString kind; + readonly attribute DOMString label; + readonly attribute DOMString language; + attribute boolean enabled; +}; + +interface VideoTrackList : EventTarget { + readonly attribute unsigned long length; + getter VideoTrack (unsigned long index); + VideoTrack? getTrackById(DOMString id); + readonly attribute long selectedIndex; + + attribute EventHandler onchange; + attribute EventHandler onaddtrack; + attribute EventHandler onremovetrack; +}; + +interface VideoTrack { + readonly attribute DOMString id; + readonly attribute DOMString kind; + readonly attribute DOMString label; + readonly attribute DOMString language; + attribute boolean selected; +}; + +enum MediaControllerPlaybackState { "waiting", "playing", "ended" }; +[Constructor] +interface MediaController : EventTarget { + readonly attribute unsigned short readyState; // uses HTMLMediaElement.readyState's values + + readonly attribute TimeRanges buffered; + readonly attribute TimeRanges seekable; + readonly attribute unrestricted double duration; + attribute double currentTime; + + readonly attribute boolean paused; + readonly attribute MediaControllerPlaybackState playbackState; + readonly attribute TimeRanges played; + void pause(); + void unpause(); + void play(); // calls play() on all media elements as well + + attribute double defaultPlaybackRate; + attribute double playbackRate; + + attribute double volume; + attribute boolean muted; + + attribute EventHandler onemptied; + attribute EventHandler onloadedmetadata; + attribute EventHandler onloadeddata; + attribute EventHandler oncanplay; + attribute EventHandler oncanplaythrough; + attribute EventHandler onplaying; + attribute EventHandler onended; + attribute EventHandler onwaiting; + + attribute EventHandler ondurationchange; + attribute EventHandler ontimeupdate; + attribute EventHandler onplay; + attribute EventHandler onpause; + attribute EventHandler onratechange; + attribute EventHandler onvolumechange; +}; + +interface TextTrackList : EventTarget { + readonly attribute unsigned long length; + getter TextTrack (unsigned long index); + TextTrack? getTrackById(DOMString id); + + attribute EventHandler onchange; + attribute EventHandler onaddtrack; + attribute EventHandler onremovetrack; +}; + +enum TextTrackMode { "disabled", "hidden", "showing" }; +enum TextTrackKind { "subtitles", "captions", "descriptions", "chapters", "metadata" }; +interface TextTrack : EventTarget { + readonly attribute TextTrackKind kind; + readonly attribute DOMString label; + readonly attribute DOMString language; + + readonly attribute DOMString id; + readonly attribute DOMString inBandMetadataTrackDispatchType; + + attribute TextTrackMode mode; + + readonly attribute TextTrackCueList? cues; + readonly attribute TextTrackCueList? activeCues; + + void addCue(TextTrackCue cue); + void removeCue(TextTrackCue cue); + + attribute EventHandler oncuechange; +}; + +interface TextTrackCueList { + readonly attribute unsigned long length; + getter TextTrackCue (unsigned long index); + TextTrackCue? getCueById(DOMString id); +}; + +interface TextTrackCue : EventTarget { + readonly attribute TextTrack? track; + + attribute DOMString id; + attribute double startTime; + attribute double endTime; + attribute boolean pauseOnExit; + + attribute EventHandler onenter; + attribute EventHandler onexit; +}; + +interface TimeRanges { + readonly attribute unsigned long length; + double start(unsigned long index); + double end(unsigned long index); +}; + +[Constructor(DOMString type, optional TrackEventInit eventInitDict)] +interface TrackEvent : Event { + readonly attribute (VideoTrack or AudioTrack or TextTrack)? track; +}; + +dictionary TrackEventInit : EventInit { + (VideoTrack or AudioTrack or TextTrack)? track; +}; + +interface HTMLMapElement : HTMLElement { + attribute DOMString name; + readonly attribute HTMLCollection areas; +}; + +interface HTMLAreaElement : HTMLElement { + attribute DOMString alt; + attribute DOMString coords; + attribute DOMString shape; + attribute DOMString target; + attribute DOMString download; + [PutForwards=value] readonly attribute DOMSettableTokenList ping; + attribute DOMString rel; + readonly attribute DOMTokenList relList; + attribute DOMString hreflang; + attribute DOMString type; + + // also has obsolete members +}; +HTMLAreaElement implements URLUtils; + +interface HTMLTableElement : HTMLElement { + attribute HTMLTableCaptionElement? caption; + HTMLElement createCaption(); + void deleteCaption(); + attribute HTMLTableSectionElement? tHead; + HTMLElement createTHead(); + void deleteTHead(); + attribute HTMLTableSectionElement? tFoot; + HTMLElement createTFoot(); + void deleteTFoot(); + readonly attribute HTMLCollection tBodies; + HTMLElement createTBody(); + readonly attribute HTMLCollection rows; + HTMLElement insertRow(optional long index = -1); + void deleteRow(long index); + attribute boolean sortable; + void stopSorting(); + + // also has obsolete members +}; + +interface HTMLTableCaptionElement : HTMLElement { + // also has obsolete members +}; + +interface HTMLTableColElement : HTMLElement { + attribute unsigned long span; + + // also has obsolete members +}; + +interface HTMLTableSectionElement : HTMLElement { + readonly attribute HTMLCollection rows; + HTMLElement insertRow(optional long index = -1); + void deleteRow(long index); + + // also has obsolete members +}; + +interface HTMLTableRowElement : HTMLElement { + readonly attribute long rowIndex; + readonly attribute long sectionRowIndex; + readonly attribute HTMLCollection cells; + HTMLElement insertCell(optional long index = -1); + void deleteCell(long index); + + // also has obsolete members +}; + +interface HTMLTableDataCellElement : HTMLTableCellElement { + // also has obsolete members +}; + +interface HTMLTableHeaderCellElement : HTMLTableCellElement { + attribute DOMString scope; + attribute DOMString abbr; + attribute DOMString sorted; + void sort(); +}; + +interface HTMLTableCellElement : HTMLElement { + attribute unsigned long colSpan; + attribute unsigned long rowSpan; + [PutForwards=value] readonly attribute DOMSettableTokenList headers; + readonly attribute long cellIndex; + + // also has obsolete members +}; + +[OverrideBuiltins] +interface HTMLFormElement : HTMLElement { + attribute DOMString acceptCharset; + attribute DOMString action; + attribute DOMString autocomplete; + attribute DOMString enctype; + attribute DOMString encoding; + attribute DOMString method; + attribute DOMString name; + attribute boolean noValidate; + attribute DOMString target; + + readonly attribute HTMLFormControlsCollection elements; + readonly attribute long length; + getter Element (unsigned long index); + getter (RadioNodeList or Element) (DOMString name); + + void submit(); + void reset(); + boolean checkValidity(); + boolean reportValidity(); + + void requestAutocomplete(); +}; + +interface HTMLLabelElement : HTMLElement { + readonly attribute HTMLFormElement? form; + attribute DOMString htmlFor; + readonly attribute HTMLElement? control; +}; + +interface HTMLInputElement : HTMLElement { + attribute DOMString accept; + attribute DOMString alt; + attribute DOMString autocomplete; + attribute boolean autofocus; + attribute boolean defaultChecked; + attribute boolean checked; + attribute DOMString dirName; + attribute boolean disabled; + readonly attribute HTMLFormElement? form; + readonly attribute FileList? files; + attribute DOMString formAction; + attribute DOMString formEnctype; + attribute DOMString formMethod; + attribute boolean formNoValidate; + attribute DOMString formTarget; + attribute unsigned long height; + attribute boolean indeterminate; + attribute DOMString inputMode; + readonly attribute HTMLElement? list; + attribute DOMString max; + attribute long maxLength; + attribute DOMString min; + attribute long minLength; + attribute boolean multiple; + attribute DOMString name; + attribute DOMString pattern; + attribute DOMString placeholder; + attribute boolean readOnly; + attribute boolean required; + attribute unsigned long size; + attribute DOMString src; + attribute DOMString step; + attribute DOMString type; + attribute DOMString defaultValue; + [TreatNullAs=EmptyString] attribute DOMString value; + attribute Date? valueAsDate; + attribute unrestricted double valueAsNumber; + attribute double valueLow; + attribute double valueHigh; + attribute unsigned long width; + + void stepUp(optional long n = 1); + void stepDown(optional long n = 1); + + readonly attribute boolean willValidate; + readonly attribute ValidityState validity; + readonly attribute DOMString validationMessage; + boolean checkValidity(); + boolean reportValidity(); + void setCustomValidity(DOMString error); + + readonly attribute NodeList labels; + + void select(); + attribute unsigned long selectionStart; + attribute unsigned long selectionEnd; + attribute DOMString selectionDirection; + void setRangeText(DOMString replacement); + void setRangeText(DOMString replacement, unsigned long start, unsigned long end, optional SelectionMode selectionMode = "preserve"); + void setSelectionRange(unsigned long start, unsigned long end, optional DOMString direction); + + // also has obsolete members +}; + +interface HTMLButtonElement : HTMLElement { + attribute boolean autofocus; + attribute boolean disabled; + readonly attribute HTMLFormElement? form; + attribute DOMString formAction; + attribute DOMString formEnctype; + attribute DOMString formMethod; + attribute boolean formNoValidate; + attribute DOMString formTarget; + attribute DOMString name; + attribute DOMString type; + attribute DOMString value; + attribute HTMLMenuElement? menu; + + readonly attribute boolean willValidate; + readonly attribute ValidityState validity; + readonly attribute DOMString validationMessage; + boolean checkValidity(); + boolean reportValidity(); + void setCustomValidity(DOMString error); + + readonly attribute NodeList labels; +}; + +interface HTMLSelectElement : HTMLElement { + attribute DOMString autocomplete; + attribute boolean autofocus; + attribute boolean disabled; + readonly attribute HTMLFormElement? form; + attribute boolean multiple; + attribute DOMString name; + attribute boolean required; + attribute unsigned long size; + + readonly attribute DOMString type; + + readonly attribute HTMLOptionsCollection options; + attribute unsigned long length; + getter Element? item(unsigned long index); + HTMLOptionElement? namedItem(DOMString name); + void add((HTMLOptionElement or HTMLOptGroupElement) element, optional (HTMLElement or long)? before = null); + void remove(); // ChildNode overload + void remove(long index); + setter void (unsigned long index, HTMLOptionElement? option); + + readonly attribute HTMLCollection selectedOptions; + attribute long selectedIndex; + attribute DOMString value; + + readonly attribute boolean willValidate; + readonly attribute ValidityState validity; + readonly attribute DOMString validationMessage; + boolean checkValidity(); + boolean reportValidity(); + void setCustomValidity(DOMString error); + + readonly attribute NodeList labels; +}; + +interface HTMLDataListElement : HTMLElement { + readonly attribute HTMLCollection options; +}; + +interface HTMLOptGroupElement : HTMLElement { + attribute boolean disabled; + attribute DOMString label; +}; + +[NamedConstructor=Option(optional DOMString text = "", optional DOMString value, optional boolean defaultSelected = false, optional boolean selected = false)] +interface HTMLOptionElement : HTMLElement { + attribute boolean disabled; + readonly attribute HTMLFormElement? form; + attribute DOMString label; + attribute boolean defaultSelected; + attribute boolean selected; + attribute DOMString value; + + attribute DOMString text; + readonly attribute long index; +}; + +interface HTMLTextAreaElement : HTMLElement { + attribute DOMString autocomplete; + attribute boolean autofocus; + attribute unsigned long cols; + attribute DOMString dirName; + attribute boolean disabled; + readonly attribute HTMLFormElement? form; + attribute DOMString inputMode; + attribute long maxLength; + attribute long minLength; + attribute DOMString name; + attribute DOMString placeholder; + attribute boolean readOnly; + attribute boolean required; + attribute unsigned long rows; + attribute DOMString wrap; + + readonly attribute DOMString type; + attribute DOMString defaultValue; + [TreatNullAs=EmptyString] attribute DOMString value; + readonly attribute unsigned long textLength; + + readonly attribute boolean willValidate; + readonly attribute ValidityState validity; + readonly attribute DOMString validationMessage; + boolean checkValidity(); + boolean reportValidity(); + void setCustomValidity(DOMString error); + + readonly attribute NodeList labels; + + void select(); + attribute unsigned long selectionStart; + attribute unsigned long selectionEnd; + attribute DOMString selectionDirection; + void setRangeText(DOMString replacement); + void setRangeText(DOMString replacement, unsigned long start, unsigned long end, optional SelectionMode selectionMode = "preserve"); + void setSelectionRange(unsigned long start, unsigned long end, optional DOMString direction); +}; + +interface HTMLKeygenElement : HTMLElement { + attribute boolean autofocus; + attribute DOMString challenge; + attribute boolean disabled; + readonly attribute HTMLFormElement? form; + attribute DOMString keytype; + attribute DOMString name; + + readonly attribute DOMString type; + + readonly attribute boolean willValidate; + readonly attribute ValidityState validity; + readonly attribute DOMString validationMessage; + boolean checkValidity(); + boolean reportValidity(); + void setCustomValidity(DOMString error); + + readonly attribute NodeList labels; +}; + +interface HTMLOutputElement : HTMLElement { + [PutForwards=value] readonly attribute DOMSettableTokenList htmlFor; + readonly attribute HTMLFormElement? form; + attribute DOMString name; + + readonly attribute DOMString type; + attribute DOMString defaultValue; + attribute DOMString value; + + readonly attribute boolean willValidate; + readonly attribute ValidityState validity; + readonly attribute DOMString validationMessage; + boolean checkValidity(); + boolean reportValidity(); + void setCustomValidity(DOMString error); + + readonly attribute NodeList labels; +}; + +interface HTMLProgressElement : HTMLElement { + attribute double value; + attribute double max; + readonly attribute double position; + readonly attribute NodeList labels; +}; + +interface HTMLMeterElement : HTMLElement { + attribute double value; + attribute double min; + attribute double max; + attribute double low; + attribute double high; + attribute double optimum; + readonly attribute NodeList labels; +}; + +interface HTMLFieldSetElement : HTMLElement { + attribute boolean disabled; + readonly attribute HTMLFormElement? form; + attribute DOMString name; + + readonly attribute DOMString type; + + readonly attribute HTMLFormControlsCollection elements; + + readonly attribute boolean willValidate; + [SameObject] readonly attribute ValidityState validity; + readonly attribute DOMString validationMessage; + boolean checkValidity(); + boolean reportValidity(); + void setCustomValidity(DOMString error); +}; + +interface HTMLLegendElement : HTMLElement { + readonly attribute HTMLFormElement? form; + + // also has obsolete members +}; + +enum AutocompleteErrorReason { "" /* empty string */, "cancel", "disabled", "invalid" }; + +[Constructor(DOMString type, optional AutocompleteErrorEventInit eventInitDict)] +interface AutocompleteErrorEvent : Event { + readonly attribute AutocompleteErrorReason reason; +}; + +dictionary AutocompleteErrorEventInit : EventInit { + AutocompleteErrorReason reason; +}; + +enum SelectionMode { + "select", + "start", + "end", + "preserve", // default +}; + +interface ValidityState { + readonly attribute boolean valueMissing; + readonly attribute boolean typeMismatch; + readonly attribute boolean patternMismatch; + readonly attribute boolean tooLong; + readonly attribute boolean tooShort; + readonly attribute boolean rangeUnderflow; + readonly attribute boolean rangeOverflow; + readonly attribute boolean stepMismatch; + readonly attribute boolean badInput; + readonly attribute boolean customError; + readonly attribute boolean valid; +}; + +interface HTMLDetailsElement : HTMLElement { + attribute boolean open; +}; + +interface HTMLMenuElement : HTMLElement { + attribute DOMString type; + attribute DOMString label; + + // also has obsolete members +}; + +interface HTMLMenuItemElement : HTMLElement { + attribute DOMString type; + attribute DOMString label; + attribute DOMString icon; + attribute boolean disabled; + attribute boolean checked; + attribute DOMString radiogroup; + attribute boolean default; + readonly attribute HTMLElement? command; +}; + +[Constructor(DOMString type, optional RelatedEventInit eventInitDict)] +interface RelatedEvent : Event { + readonly attribute EventTarget? relatedTarget; +}; + +dictionary RelatedEventInit : EventInit { + EventTarget? relatedTarget; +}; + +interface HTMLDialogElement : HTMLElement { + attribute boolean open; + attribute DOMString returnValue; + void show(optional (MouseEvent or Element) anchor); + void showModal(optional (MouseEvent or Element) anchor); + void close(optional DOMString returnValue); +}; + +interface HTMLScriptElement : HTMLElement { + attribute DOMString src; + attribute DOMString type; + attribute DOMString charset; + attribute boolean async; + attribute boolean defer; + attribute DOMString? crossOrigin; + attribute DOMString text; + attribute DOMString nonce; + + // also has obsolete members +}; + +interface HTMLTemplateElement : HTMLElement { + readonly attribute DocumentFragment content; +}; + +typedef (CanvasRenderingContext2D or WebGLRenderingContext) RenderingContext; + +interface HTMLCanvasElement : HTMLElement { + attribute unsigned long width; + attribute unsigned long height; + + RenderingContext? getContext(DOMString contextId, any... arguments); + boolean probablySupportsContext(DOMString contextId, any... arguments); + + void setContext(RenderingContext context); + CanvasProxy transferControlToProxy(); + + DOMString toDataURL(optional DOMString type, any... arguments); + void toBlob(FileCallback? _callback, optional DOMString type, any... arguments); +}; + +[Exposed=(Window,Worker)] +interface CanvasProxy { + void setContext(RenderingContext context); +}; +// CanvasProxy implements Transferable; + +typedef (HTMLImageElement or + HTMLVideoElement or + HTMLCanvasElement or + CanvasRenderingContext2D or + ImageBitmap) CanvasImageSource; + +enum CanvasFillRule { "nonzero", "evenodd" }; + +dictionary CanvasRenderingContext2DSettings { + boolean alpha = true; +}; + +enum ImageSmoothingQuality { "low", "medium", "high" }; + +[Constructor(), + Constructor(unsigned long width, unsigned long height), + Exposed=(Window,Worker)] +interface CanvasRenderingContext2D { + + // back-reference to the canvas + readonly attribute HTMLCanvasElement canvas; + + // canvas dimensions + attribute unsigned long width; + attribute unsigned long height; + + // for contexts that aren't directly fixed to a specific canvas + void commit(); // push the image to the output bitmap + + // state + void save(); // push state on state stack + void restore(); // pop state stack and restore state + + // transformations (default transform is the identity matrix) + attribute DOMMatrix currentTransform; + void scale(unrestricted double x, unrestricted double y); + void rotate(unrestricted double angle); + void translate(unrestricted double x, unrestricted double y); + void transform(unrestricted double a, unrestricted double b, unrestricted double c, unrestricted double d, unrestricted double e, unrestricted double f); + void setTransform(unrestricted double a, unrestricted double b, unrestricted double c, unrestricted double d, unrestricted double e, unrestricted double f); + void resetTransform(); + + // compositing + attribute unrestricted double globalAlpha; // (default 1.0) + attribute DOMString globalCompositeOperation; // (default source-over) + + // image smoothing + attribute boolean imageSmoothingEnabled; // (default true) + attribute ImageSmoothingQuality imageSmoothingQuality; // (default low) + + // colours and styles (see also the CanvasDrawingStyles interface) + attribute (DOMString or CanvasGradient or CanvasPattern) strokeStyle; // (default black) + attribute (DOMString or CanvasGradient or CanvasPattern) fillStyle; // (default black) + CanvasGradient createLinearGradient(double x0, double y0, double x1, double y1); + CanvasGradient createRadialGradient(double x0, double y0, double r0, double x1, double y1, double r1); + CanvasPattern createPattern(CanvasImageSource image, [TreatNullAs=EmptyString] DOMString repetition); + + // shadows + attribute unrestricted double shadowOffsetX; // (default 0) + attribute unrestricted double shadowOffsetY; // (default 0) + attribute unrestricted double shadowBlur; // (default 0) + attribute DOMString shadowColor; // (default transparent black) + + // rects + void clearRect(unrestricted double x, unrestricted double y, unrestricted double w, unrestricted double h); + void fillRect(unrestricted double x, unrestricted double y, unrestricted double w, unrestricted double h); + void strokeRect(unrestricted double x, unrestricted double y, unrestricted double w, unrestricted double h); + + // path API (see also CanvasPathMethods) + void beginPath(); + void fill(optional CanvasFillRule fillRule = "nonzero"); + void fill(Path2D path, optional CanvasFillRule fillRule = "nonzero"); + void stroke(); + void stroke(Path2D path); + void drawFocusIfNeeded(Element element); + void drawFocusIfNeeded(Path2D path, Element element); + void scrollPathIntoView(); + void scrollPathIntoView(Path2D path); + void clip(optional CanvasFillRule fillRule = "nonzero"); + void clip(Path2D path, optional CanvasFillRule fillRule = "nonzero"); + void resetClip(); + boolean isPointInPath(unrestricted double x, unrestricted double y, optional CanvasFillRule fillRule = "nonzero"); + boolean isPointInPath(Path2D path, unrestricted double x, unrestricted double y, optional CanvasFillRule fillRule = "nonzero"); + boolean isPointInStroke(unrestricted double x, unrestricted double y); + boolean isPointInStroke(Path2D path, unrestricted double x, unrestricted double y); + + // text (see also the CanvasDrawingStyles interface) + void fillText(DOMString text, unrestricted double x, unrestricted double y, optional unrestricted double maxWidth); + void strokeText(DOMString text, unrestricted double x, unrestricted double y, optional unrestricted double maxWidth); + TextMetrics measureText(DOMString text); + + // drawing images + void drawImage(CanvasImageSource image, unrestricted double dx, unrestricted double dy); + void drawImage(CanvasImageSource image, unrestricted double dx, unrestricted double dy, unrestricted double dw, unrestricted double dh); + void drawImage(CanvasImageSource image, unrestricted double sx, unrestricted double sy, unrestricted double sw, unrestricted double sh, unrestricted double dx, unrestricted double dy, unrestricted double dw, unrestricted double dh); + + // hit regions + void addHitRegion(optional HitRegionOptions options); + void removeHitRegion(DOMString id); + void clearHitRegions(); + + // pixel manipulation + ImageData createImageData(double sw, double sh); + ImageData createImageData(ImageData imagedata); + ImageData getImageData(double sx, double sy, double sw, double sh); + void putImageData(ImageData imagedata, double dx, double dy); + void putImageData(ImageData imagedata, double dx, double dy, double dirtyX, double dirtyY, double dirtyWidth, double dirtyHeight); +}; +CanvasRenderingContext2D implements CanvasDrawingStyles; +CanvasRenderingContext2D implements CanvasPathMethods; + +[NoInterfaceObject, Exposed=(Window,Worker)] +interface CanvasDrawingStyles { + // line caps/joins + attribute unrestricted double lineWidth; // (default 1) + attribute DOMString lineCap; // "butt", "round", "square" (default "butt") + attribute DOMString lineJoin; // "round", "bevel", "miter" (default "miter") + attribute unrestricted double miterLimit; // (default 10) + + // dashed lines + void setLineDash(sequence segments); // default empty + sequence getLineDash(); + attribute unrestricted double lineDashOffset; + + // text + attribute DOMString font; // (default 10px sans-serif) + attribute DOMString textAlign; // "start", "end", "left", "right", "center" (default: "start") + attribute DOMString textBaseline; // "top", "hanging", "middle", "alphabetic", "ideographic", "bottom" (default: "alphabetic") + attribute DOMString direction; // "ltr", "rtl", "inherit" (default: "inherit") +}; + +[NoInterfaceObject, Exposed=(Window,Worker)] +interface CanvasPathMethods { + // shared path API methods + void closePath(); + void moveTo(unrestricted double x, unrestricted double y); + void lineTo(unrestricted double x, unrestricted double y); + void quadraticCurveTo(unrestricted double cpx, unrestricted double cpy, unrestricted double x, unrestricted double y); + void bezierCurveTo(unrestricted double cp1x, unrestricted double cp1y, unrestricted double cp2x, unrestricted double cp2y, unrestricted double x, unrestricted double y); + void arcTo(unrestricted double x1, unrestricted double y1, unrestricted double x2, unrestricted double y2, unrestricted double radius); + void arcTo(unrestricted double x1, unrestricted double y1, unrestricted double x2, unrestricted double y2, unrestricted double radiusX, unrestricted double radiusY, unrestricted double rotation); + void rect(unrestricted double x, unrestricted double y, unrestricted double w, unrestricted double h); + void arc(unrestricted double x, unrestricted double y, unrestricted double radius, unrestricted double startAngle, unrestricted double endAngle, optional boolean anticlockwise = false); + void ellipse(unrestricted double x, unrestricted double y, unrestricted double radiusX, unrestricted double radiusY, unrestricted double rotation, unrestricted double startAngle, unrestricted double endAngle, optional boolean anticlockwise = false); +}; + +[Exposed=(Window,Worker)] +interface CanvasGradient { + // opaque object + void addColorStop(double offset, DOMString color); +}; + +[Exposed=(Window,Worker)] +interface CanvasPattern { + // opaque object + void setTransform(DOMMatrix transform); +}; + +[Exposed=(Window,Worker)] +interface TextMetrics { + // x-direction + readonly attribute double width; // advance width + readonly attribute double actualBoundingBoxLeft; + readonly attribute double actualBoundingBoxRight; + + // y-direction + readonly attribute double fontBoundingBoxAscent; + readonly attribute double fontBoundingBoxDescent; + readonly attribute double actualBoundingBoxAscent; + readonly attribute double actualBoundingBoxDescent; + readonly attribute double emHeightAscent; + readonly attribute double emHeightDescent; + readonly attribute double hangingBaseline; + readonly attribute double alphabeticBaseline; + readonly attribute double ideographicBaseline; +}; + +dictionary HitRegionOptions { + Path2D? path = null; + CanvasFillRule fillRule = "nonzero"; + DOMString id = ""; + DOMString? parentID = null; + DOMString cursor = "inherit"; + // for control-backed regions: + Element? control = null; + // for unbacked regions: + DOMString? label = null; + DOMString? role = null; +}; + +[Constructor(unsigned long sw, unsigned long sh), + Constructor(Uint8ClampedArray data, unsigned long sw, optional unsigned long sh), + Exposed=(Window,Worker)] +interface ImageData { + readonly attribute unsigned long width; + readonly attribute unsigned long height; + readonly attribute Uint8ClampedArray data; +}; + +[Constructor(optional Element scope), Exposed=(Window,Worker)] +interface DrawingStyle { }; +DrawingStyle implements CanvasDrawingStyles; + +[Constructor, + Constructor(Path2D path), + Constructor(sequence paths, optional CanvasFillRule fillRule = "nonzero"), + Constructor(DOMString d), Exposed=(Window,Worker)] +interface Path2D { + void addPath(Path2D path, optional DOMMatrix? transformation = null); + void addPathByStrokingPath(Path2D path, CanvasDrawingStyles styles, optional DOMMatrix? transformation = null); + void addText(DOMString text, CanvasDrawingStyles styles, DOMMatrix? transformation, unrestricted double x, unrestricted double y, optional unrestricted double maxWidth); + void addPathByStrokingText(DOMString text, CanvasDrawingStyles styles, DOMMatrix? transformation, unrestricted double x, unrestricted double y, optional unrestricted double maxWidth); + void addText(DOMString text, CanvasDrawingStyles styles, DOMMatrix? transformation, Path2D path, optional unrestricted double maxWidth); + void addPathByStrokingText(DOMString text, CanvasDrawingStyles styles, DOMMatrix? transformation, Path2D path, optional unrestricted double maxWidth); +}; +Path2D implements CanvasPathMethods; + +partial interface MouseEvent { + readonly attribute DOMString? region; +}; + +partial dictionary MouseEventInit { + DOMString? region; +}; + +partial interface Touch { + readonly attribute DOMString? region; +}; + +[NoInterfaceObject] +interface ElementContentEditable { + attribute DOMString contentEditable; + readonly attribute boolean isContentEditable; +}; + +interface DataTransfer { + attribute DOMString dropEffect; + attribute DOMString effectAllowed; + + [SameObject] readonly attribute DataTransferItemList items; + + void setDragImage(Element image, long x, long y); + + /* old interface */ + [SameObject] readonly attribute DOMString[] types; + DOMString getData(DOMString format); + void setData(DOMString format, DOMString data); + void clearData(optional DOMString format); + [SameObject] readonly attribute FileList files; +}; + +interface DataTransferItemList { + readonly attribute unsigned long length; + getter DataTransferItem (unsigned long index); + DataTransferItem? add(DOMString data, DOMString type); + DataTransferItem? add(File data); + void remove(unsigned long index); + void clear(); +}; + +interface DataTransferItem { + readonly attribute DOMString kind; + readonly attribute DOMString type; + void getAsString(FunctionStringCallback? _callback); + File? getAsFile(); +}; + +callback FunctionStringCallback = void (DOMString data); + +[Constructor(DOMString type, optional DragEventInit eventInitDict)] +interface DragEvent : MouseEvent { + readonly attribute DataTransfer? dataTransfer; +}; + +dictionary DragEventInit : MouseEventInit { + DataTransfer? dataTransfer = null; +}; + +[PrimaryGlobal] +/*sealed*/ interface Window : EventTarget { + // the current browsing context + [Unforgeable] readonly attribute WindowProxy window; + [Replaceable] readonly attribute WindowProxy self; + [Unforgeable] readonly attribute Document document; + attribute DOMString name; + [PutForwards=href, Unforgeable] readonly attribute Location location; + readonly attribute History history; + [Replaceable] readonly attribute BarProp locationbar; + [Replaceable] readonly attribute BarProp menubar; + [Replaceable] readonly attribute BarProp personalbar; + [Replaceable] readonly attribute BarProp scrollbars; + [Replaceable] readonly attribute BarProp statusbar; + [Replaceable] readonly attribute BarProp toolbar; + attribute DOMString status; + void close(); + readonly attribute boolean closed; + void stop(); + void focus(); + void blur(); + + // other browsing contexts + [Replaceable] readonly attribute WindowProxy frames; + [Replaceable] readonly attribute unsigned long length; + [Unforgeable] readonly attribute WindowProxy top; + attribute any opener; + [Replaceable] readonly attribute WindowProxy parent; + readonly attribute Element? frameElement; + WindowProxy open(optional DOMString url = "about:blank", optional DOMString target = "_blank", [TreatNullAs=EmptyString] optional DOMString features = "", optional boolean replace = false); + getter WindowProxy (unsigned long index); + getter object (DOMString name); + + // the user agent + readonly attribute Navigator navigator; + [Replaceable, SameObject] readonly attribute External external; + readonly attribute ApplicationCache applicationCache; + + // user prompts + void alert(); + void alert(DOMString message); + boolean confirm(optional DOMString message = ""); + DOMString? prompt(optional DOMString message = "", optional DOMString default = ""); + void print(); + any showModalDialog(DOMString url, optional any argument); // deprecated + + unsigned long requestAnimationFrame(FrameRequestCallback callback); + void cancelAnimationFrame(unsigned long handle); + + void postMessage(any message, DOMString targetOrigin, optional sequence transfer); + + // also has obsolete members +}; +Window implements GlobalEventHandlers; +Window implements WindowEventHandlers; + +callback FrameRequestCallback = void (DOMHighResTimeStamp time); + +interface BarProp { + readonly attribute boolean visible; +}; + +interface History { + readonly attribute unsigned long length; + readonly attribute any state; + void go(optional long delta = 0); + void back(); + void forward(); + void pushState(any data, DOMString title, optional DOMString? url = null); + void replaceState(any data, DOMString title, optional DOMString? url = null); +}; + +[Unforgeable] interface Location { + void assign(DOMString url); + void replace(DOMString url); + void reload(); + + [SameObject] readonly attribute DOMString[] ancestorOrigins; +}; +Location implements URLUtils; + +[Constructor(DOMString type, optional PopStateEventInit eventInitDict), Exposed=(Window,Worker)] +interface PopStateEvent : Event { + readonly attribute any state; +}; + +dictionary PopStateEventInit : EventInit { + any state; +}; + +[Constructor(DOMString type, optional HashChangeEventInit eventInitDict), Exposed=(Window,Worker)] +interface HashChangeEvent : Event { + readonly attribute DOMString oldURL; + readonly attribute DOMString newURL; +}; + +dictionary HashChangeEventInit : EventInit { + DOMString oldURL; + DOMString newURL; +}; + +[Constructor(DOMString type, optional PageTransitionEventInit eventInitDict), Exposed=(Window,Worker)] +interface PageTransitionEvent : Event { + readonly attribute boolean persisted; +}; + +dictionary PageTransitionEventInit : EventInit { + boolean persisted; +}; + +interface BeforeUnloadEvent : Event { + attribute DOMString returnValue; +}; + +[Exposed=(Window,SharedWorker)] +interface ApplicationCache : EventTarget { + + // update status + const unsigned short UNCACHED = 0; + const unsigned short IDLE = 1; + const unsigned short CHECKING = 2; + const unsigned short DOWNLOADING = 3; + const unsigned short UPDATEREADY = 4; + const unsigned short OBSOLETE = 5; + readonly attribute unsigned short status; + + // updates + void update(); + void abort(); + void swapCache(); + + // events + attribute EventHandler onchecking; + attribute EventHandler onerror; + attribute EventHandler onnoupdate; + attribute EventHandler ondownloading; + attribute EventHandler onprogress; + attribute EventHandler onupdateready; + attribute EventHandler oncached; + attribute EventHandler onobsolete; +}; + +[NoInterfaceObject, Exposed=(Window,Worker)] +interface NavigatorOnLine { + readonly attribute boolean onLine; +}; + +[Constructor(DOMString type, optional ErrorEventInit eventInitDict), Exposed=(Window,Worker)] +interface ErrorEvent : Event { + readonly attribute DOMString message; + readonly attribute DOMString filename; + readonly attribute unsigned long lineno; + readonly attribute unsigned long colno; + readonly attribute any error; +}; + +dictionary ErrorEventInit : EventInit { + DOMString message; + DOMString filename; + unsigned long lineno; + unsigned long colno; + any error; +}; + +[TreatNonObjectAsNull] +callback EventHandlerNonNull = any (Event event); +typedef EventHandlerNonNull? EventHandler; + +[TreatNonObjectAsNull] +callback OnErrorEventHandlerNonNull = any ((Event or DOMString) event, optional DOMString source, optional unsigned long lineno, optional unsigned long column, optional any error); +typedef OnErrorEventHandlerNonNull? OnErrorEventHandler; + +[TreatNonObjectAsNull] +callback OnBeforeUnloadEventHandlerNonNull = DOMString? (Event event); +typedef OnBeforeUnloadEventHandlerNonNull? OnBeforeUnloadEventHandler; + +[NoInterfaceObject] +interface GlobalEventHandlers { + attribute EventHandler onabort; + attribute EventHandler onautocomplete; + attribute EventHandler onautocompleteerror; + attribute EventHandler onblur; + attribute EventHandler oncancel; + attribute EventHandler oncanplay; + attribute EventHandler oncanplaythrough; + attribute EventHandler onchange; + attribute EventHandler onclick; + attribute EventHandler onclose; + attribute EventHandler oncontextmenu; + attribute EventHandler oncuechange; + attribute EventHandler ondblclick; + attribute EventHandler ondrag; + attribute EventHandler ondragend; + attribute EventHandler ondragenter; + attribute EventHandler ondragexit; + attribute EventHandler ondragleave; + attribute EventHandler ondragover; + attribute EventHandler ondragstart; + attribute EventHandler ondrop; + attribute EventHandler ondurationchange; + attribute EventHandler onemptied; + attribute EventHandler onended; + attribute OnErrorEventHandler onerror; + attribute EventHandler onfocus; + attribute EventHandler oninput; + attribute EventHandler oninvalid; + attribute EventHandler onkeydown; + attribute EventHandler onkeypress; + attribute EventHandler onkeyup; + attribute EventHandler onload; + attribute EventHandler onloadeddata; + attribute EventHandler onloadedmetadata; + attribute EventHandler onloadstart; + attribute EventHandler onmousedown; + [LenientThis] attribute EventHandler onmouseenter; + [LenientThis] attribute EventHandler onmouseleave; + attribute EventHandler onmousemove; + attribute EventHandler onmouseout; + attribute EventHandler onmouseover; + attribute EventHandler onmouseup; + attribute EventHandler onwheel; + attribute EventHandler onpause; + attribute EventHandler onplay; + attribute EventHandler onplaying; + attribute EventHandler onprogress; + attribute EventHandler onratechange; + attribute EventHandler onreset; + attribute EventHandler onresize; + attribute EventHandler onscroll; + attribute EventHandler onseeked; + attribute EventHandler onseeking; + attribute EventHandler onselect; + attribute EventHandler onshow; + attribute EventHandler onsort; + attribute EventHandler onstalled; + attribute EventHandler onsubmit; + attribute EventHandler onsuspend; + attribute EventHandler ontimeupdate; + attribute EventHandler ontoggle; + attribute EventHandler onvolumechange; + attribute EventHandler onwaiting; +}; + +[NoInterfaceObject] +interface WindowEventHandlers { + attribute EventHandler onafterprint; + attribute EventHandler onbeforeprint; + attribute OnBeforeUnloadEventHandler onbeforeunload; + attribute EventHandler onhashchange; + attribute EventHandler onlanguagechange; + attribute EventHandler onmessage; + attribute EventHandler onoffline; + attribute EventHandler ononline; + attribute EventHandler onpagehide; + attribute EventHandler onpageshow; + attribute EventHandler onpopstate; + attribute EventHandler onstorage; + attribute EventHandler onunload; +}; + +[NoInterfaceObject, Exposed=(Window,Worker)] +interface WindowBase64 { + DOMString btoa(DOMString btoa); + DOMString atob(DOMString atob); +}; +Window implements WindowBase64; +WorkerGlobalScope implements WindowBase64; + +[NoInterfaceObject, Exposed=(Window,Worker)] +interface WindowTimers { + long setTimeout(Function handler, optional long timeout = 0, any... arguments); + long setTimeout(DOMString handler, optional long timeout = 0, any... arguments); + void clearTimeout(optional long handle = 0); + long setInterval(Function handler, optional long timeout = 0, any... arguments); + long setInterval(DOMString handler, optional long timeout = 0, any... arguments); + void clearInterval(optional long handle = 0); +}; +Window implements WindowTimers; +WorkerGlobalScope implements WindowTimers; + +[NoInterfaceObject] +interface WindowModal { + readonly attribute any dialogArguments; + attribute any returnValue; +}; + +interface Navigator { + // objects implementing this interface also implement the interfaces given below +}; +Navigator implements NavigatorID; +Navigator implements NavigatorLanguage; +Navigator implements NavigatorOnLine; +Navigator implements NavigatorContentUtils; +Navigator implements NavigatorStorageUtils; +Navigator implements NavigatorPlugins; + +[NoInterfaceObject, Exposed=(Window,Worker)] +interface NavigatorID { + [Exposed=Window] readonly attribute DOMString appCodeName; // constant "Mozilla" + readonly attribute DOMString appName; // constant "Netscape" + readonly attribute DOMString appVersion; + readonly attribute DOMString platform; + [Exposed=Window] readonly attribute DOMString product; // constant "Gecko" + [Exposed=Window] readonly attribute DOMString productSub; + readonly attribute DOMString userAgent; + [Exposed=Window] readonly attribute DOMString vendor; + [Exposed=Window] readonly attribute DOMString vendorSub; // constant "" + + // also has obsolete members +}; + +partial interface NavigatorID { + [Exposed=Window] boolean taintEnabled(); // constant false +}; + +[NoInterfaceObject, Exposed=(Window,Worker)] +interface NavigatorLanguage { + readonly attribute DOMString? language; + readonly attribute DOMString[] languages; +}; + +[NoInterfaceObject] +interface NavigatorContentUtils { + // content handler registration + void registerProtocolHandler(DOMString scheme, DOMString url, DOMString title); + void registerContentHandler(DOMString mimeType, DOMString url, DOMString title); + DOMString isProtocolHandlerRegistered(DOMString scheme, DOMString url); + DOMString isContentHandlerRegistered(DOMString mimeType, DOMString url); + void unregisterProtocolHandler(DOMString scheme, DOMString url); + void unregisterContentHandler(DOMString mimeType, DOMString url); +}; + +[NoInterfaceObject] +interface NavigatorStorageUtils { + readonly attribute boolean cookieEnabled; + void yieldForStorageUpdates(); +}; + +[NoInterfaceObject] +interface NavigatorPlugins { + [SameObject] readonly attribute PluginArray plugins; + [SameObject] readonly attribute MimeTypeArray mimeTypes; + readonly attribute boolean javaEnabled; +}; + +interface PluginArray { + void refresh(optional boolean reload = false); + readonly attribute unsigned long length; + getter Plugin? item(unsigned long index); + getter Plugin? namedItem(DOMString name); +}; + +interface MimeTypeArray { + readonly attribute unsigned long length; + getter MimeType? item(unsigned long index); + getter MimeType? namedItem(DOMString name); +}; + +interface Plugin { + readonly attribute DOMString name; + readonly attribute DOMString description; + readonly attribute DOMString filename; + readonly attribute unsigned long length; + getter MimeType? item(unsigned long index); + getter MimeType? namedItem(DOMString name); +}; + +interface MimeType { + readonly attribute DOMString type; + readonly attribute DOMString description; + readonly attribute DOMString suffixes; // comma-separated + readonly attribute Plugin enabledPlugin; +}; + +interface External { + void AddSearchProvider(DOMString engineURL); + unsigned long IsSearchProviderInstalled(DOMString engineURL); +}; + +[Exposed=(Window,Worker)] +interface ImageBitmap { + readonly attribute unsigned long width; + readonly attribute unsigned long height; +}; + +typedef (HTMLImageElement or + HTMLVideoElement or + HTMLCanvasElement or + Blob or + ImageData or + CanvasRenderingContext2D or + ImageBitmap) ImageBitmapSource; + +[NoInterfaceObject, Exposed=(Window,Worker)] +interface ImageBitmapFactories { + Promise createImageBitmap(ImageBitmapSource image); + Promise createImageBitmap(ImageBitmapSource image, long sx, long sy, long sw, long sh); +}; +Window implements ImageBitmapFactories; +WorkerGlobalScope implements ImageBitmapFactories; + +[Constructor(DOMString type, optional MessageEventInit eventInitDict), Exposed=(Window,Worker)] +interface MessageEvent : Event { + readonly attribute any data; + readonly attribute DOMString origin; + readonly attribute DOMString lastEventId; + readonly attribute (WindowProxy or MessagePort)? source; + readonly attribute MessagePort[]? ports; + + void initMessageEvent(DOMString type, boolean bubbles, boolean cancelable, any data, DOMString origin, DOMString lastEventId, (WindowProxy or MessagePort)? source, sequence? ports); +}; + +dictionary MessageEventInit : EventInit { + any data; + DOMString origin; + DOMString lastEventId; + (WindowProxy or MessagePort)? source; + sequence? ports; +}; + +[Constructor(DOMString url, optional EventSourceInit eventSourceInitDict), Exposed=(Window,Worker)] +interface EventSource : EventTarget { + readonly attribute DOMString url; + readonly attribute boolean withCredentials; + + // ready state + const unsigned short CONNECTING = 0; + const unsigned short OPEN = 1; + const unsigned short CLOSED = 2; + readonly attribute unsigned short readyState; + + // networking + attribute EventHandler onopen; + attribute EventHandler onmessage; + attribute EventHandler onerror; + void close(); +}; + +dictionary EventSourceInit { + boolean withCredentials = false; +}; + +enum BinaryType { "blob", "arraybuffer" }; +[Constructor(DOMString url, optional (DOMString or sequence) protocols), Exposed=(Window,Worker)] +interface WebSocket : EventTarget { + readonly attribute DOMString url; + + // ready state + const unsigned short CONNECTING = 0; + const unsigned short OPEN = 1; + const unsigned short CLOSING = 2; + const unsigned short CLOSED = 3; + readonly attribute unsigned short readyState; + readonly attribute unsigned long bufferedAmount; + + // networking + attribute EventHandler onopen; + attribute EventHandler onerror; + attribute EventHandler onclose; + readonly attribute DOMString extensions; + readonly attribute DOMString protocol; + void close([Clamp] optional unsigned short code, optional USVString reason); + + // messaging + attribute EventHandler onmessage; + attribute BinaryType binaryType; + void send(USVString data); + void send(Blob data); + void send(ArrayBuffer data); + void send(ArrayBufferView data); +}; + +[Constructor(DOMString type, optional CloseEventInit eventInitDict), Exposed=(Window,Worker)] +interface CloseEvent : Event { + readonly attribute boolean wasClean; + readonly attribute unsigned short code; + readonly attribute DOMString reason; +}; + +dictionary CloseEventInit : EventInit { + boolean wasClean; + unsigned short code; + DOMString reason; +}; + +[Constructor, Exposed=(Window,Worker)] +interface MessageChannel { + readonly attribute MessagePort port1; + readonly attribute MessagePort port2; +}; + +[Exposed=(Window,Worker)] +interface MessagePort : EventTarget { + void postMessage(any message, optional sequence transfer); + void start(); + void close(); + + // event handlers + attribute EventHandler onmessage; +}; +// MessagePort implements Transferable; + +[Constructor(DOMString name), Exposed=(Window,Worker)] +interface BroadcastChannel : EventTarget { + readonly attribute DOMString name; + void postMessage(any message); + void close(); + attribute EventHandler onmessage; +}; + +[Exposed=Worker] +interface WorkerGlobalScope : EventTarget { + readonly attribute WorkerGlobalScope self; + readonly attribute WorkerLocation location; + readonly attribute WorkerNavigator navigator; + void importScripts(DOMString... urls); + + void close(); + attribute OnErrorEventHandler onerror; + attribute EventHandler onlanguagechange; + attribute EventHandler onoffline; + attribute EventHandler ononline; +}; + +[Global=(Worker,DedicatedWorker),Exposed=DedicatedWorker] +/*sealed*/ interface DedicatedWorkerGlobalScope : WorkerGlobalScope { + void postMessage(any message, optional sequence transfer); + attribute EventHandler onmessage; +}; + +[Global=(Worker,SharedWorker),Exposed=SharedWorker] +/*sealed*/ interface SharedWorkerGlobalScope : WorkerGlobalScope { + readonly attribute DOMString name; + readonly attribute ApplicationCache applicationCache; + attribute EventHandler onconnect; +}; + +[NoInterfaceObject, Exposed=(Window,Worker)] +interface AbstractWorker { + attribute EventHandler onerror; +}; + +[Constructor(DOMString scriptURL), Exposed=(Window,Worker)] +interface Worker : EventTarget { + void terminate(); + + void postMessage(any message, optional sequence transfer); + attribute EventHandler onmessage; +}; +Worker implements AbstractWorker; + +[Constructor(DOMString scriptURL, optional DOMString name = ""), Exposed=(Window,Worker)] +interface SharedWorker : EventTarget { + readonly attribute MessagePort port; +}; +SharedWorker implements AbstractWorker; + +[Exposed=Worker] +interface WorkerNavigator {}; +WorkerNavigator implements NavigatorID; +WorkerNavigator implements NavigatorLanguage; +WorkerNavigator implements NavigatorOnLine; + +[Exposed=Worker] +interface WorkerLocation { + stringifier readonly attribute USVString href; + readonly attribute USVString origin; + readonly attribute USVString protocol; + readonly attribute USVString host; + readonly attribute USVString hostname; + readonly attribute USVString port; + readonly attribute USVString pathname; + readonly attribute USVString search; + readonly attribute USVString hash; +}; + +interface Storage { + readonly attribute unsigned long length; + DOMString? key(unsigned long index); + getter DOMString? getItem(DOMString key); + setter void setItem(DOMString key, DOMString value); + deleter void removeItem(DOMString key); + void clear(); +}; + +[NoInterfaceObject] +interface WindowSessionStorage { + readonly attribute Storage sessionStorage; +}; +Window implements WindowSessionStorage; + +[NoInterfaceObject] +interface WindowLocalStorage { + readonly attribute Storage localStorage; +}; +Window implements WindowLocalStorage; + +[Constructor(DOMString type, optional StorageEventInit eventInitDict)] +interface StorageEvent : Event { + readonly attribute DOMString? key; + readonly attribute DOMString? oldValue; + readonly attribute DOMString? newValue; + readonly attribute DOMString url; + readonly attribute Storage? storageArea; +}; + +dictionary StorageEventInit : EventInit { + DOMString? key; + DOMString? oldValue; + DOMString? newValue; + DOMString url; + Storage? storageArea; +}; + +interface HTMLAppletElement : HTMLElement { + attribute DOMString align; + attribute DOMString alt; + attribute DOMString archive; + attribute DOMString code; + attribute DOMString codeBase; + attribute DOMString height; + attribute unsigned long hspace; + attribute DOMString name; + attribute DOMString _object; // the underscore is not part of the identifier + attribute unsigned long vspace; + attribute DOMString width; +}; + +interface HTMLMarqueeElement : HTMLElement { + attribute DOMString behavior; + attribute DOMString bgColor; + attribute DOMString direction; + attribute DOMString height; + attribute unsigned long hspace; + attribute long loop; + attribute unsigned long scrollAmount; + attribute unsigned long scrollDelay; + attribute boolean trueSpeed; + attribute unsigned long vspace; + attribute DOMString width; + + attribute EventHandler onbounce; + attribute EventHandler onfinish; + attribute EventHandler onstart; + + void start(); + void stop(); +}; + +interface HTMLFrameSetElement : HTMLElement { + attribute DOMString cols; + attribute DOMString rows; +}; +HTMLFrameSetElement implements WindowEventHandlers; + +interface HTMLFrameElement : HTMLElement { + attribute DOMString name; + attribute DOMString scrolling; + attribute DOMString src; + attribute DOMString frameBorder; + attribute DOMString longDesc; + attribute boolean noResize; + readonly attribute Document? contentDocument; + readonly attribute WindowProxy? contentWindow; + + [TreatNullAs=EmptyString] attribute DOMString marginHeight; + [TreatNullAs=EmptyString] attribute DOMString marginWidth; +}; + +partial interface HTMLAnchorElement { + attribute DOMString coords; + attribute DOMString charset; + attribute DOMString name; + attribute DOMString rev; + attribute DOMString shape; +}; + +partial interface HTMLAreaElement { + attribute boolean noHref; +}; + +partial interface HTMLBodyElement { + [TreatNullAs=EmptyString] attribute DOMString text; + [TreatNullAs=EmptyString] attribute DOMString link; + [TreatNullAs=EmptyString] attribute DOMString vLink; + [TreatNullAs=EmptyString] attribute DOMString aLink; + [TreatNullAs=EmptyString] attribute DOMString bgColor; + attribute DOMString background; +}; + +partial interface HTMLBRElement { + attribute DOMString clear; +}; + +partial interface HTMLTableCaptionElement { + attribute DOMString align; +}; + +partial interface HTMLTableColElement { + attribute DOMString align; + attribute DOMString ch; + attribute DOMString chOff; + attribute DOMString vAlign; + attribute DOMString width; +}; + +interface HTMLDirectoryElement : HTMLElement { + attribute boolean compact; +}; + +partial interface HTMLDivElement { + attribute DOMString align; +}; + +partial interface HTMLDListElement { + attribute boolean compact; +}; + +partial interface HTMLEmbedElement { + attribute DOMString align; + attribute DOMString name; +}; + +interface HTMLFontElement : HTMLElement { + [TreatNullAs=EmptyString] attribute DOMString color; + attribute DOMString face; + attribute DOMString size; +}; + +partial interface HTMLHeadingElement { + attribute DOMString align; +}; + +partial interface HTMLHRElement { + attribute DOMString align; + attribute DOMString color; + attribute boolean noShade; + attribute DOMString size; + attribute DOMString width; +}; + +partial interface HTMLHtmlElement { + attribute DOMString version; +}; + +partial interface HTMLIFrameElement { + attribute DOMString align; + attribute DOMString scrolling; + attribute DOMString frameBorder; + attribute DOMString longDesc; + + [TreatNullAs=EmptyString] attribute DOMString marginHeight; + [TreatNullAs=EmptyString] attribute DOMString marginWidth; +}; + +partial interface HTMLImageElement { + attribute DOMString name; + attribute DOMString lowsrc; + attribute DOMString align; + attribute unsigned long hspace; + attribute unsigned long vspace; + attribute DOMString longDesc; + + [TreatNullAs=EmptyString] attribute DOMString border; +}; + +partial interface HTMLInputElement { + attribute DOMString align; + attribute DOMString useMap; +}; + +partial interface HTMLLegendElement { + attribute DOMString align; +}; + +partial interface HTMLLIElement { + attribute DOMString type; +}; + +partial interface HTMLLinkElement { + attribute DOMString charset; + attribute DOMString rev; + attribute DOMString target; +}; + +partial interface HTMLMenuElement { + attribute boolean compact; +}; + +partial interface HTMLMetaElement { + attribute DOMString scheme; +}; + +partial interface HTMLObjectElement { + attribute DOMString align; + attribute DOMString archive; + attribute DOMString code; + attribute boolean declare; + attribute unsigned long hspace; + attribute DOMString standby; + attribute unsigned long vspace; + attribute DOMString codeBase; + attribute DOMString codeType; + + [TreatNullAs=EmptyString] attribute DOMString border; +}; + +partial interface HTMLOListElement { + attribute boolean compact; +}; + +partial interface HTMLParagraphElement { + attribute DOMString align; +}; + +partial interface HTMLParamElement { + attribute DOMString type; + attribute DOMString valueType; +}; + +partial interface HTMLPreElement { + attribute long width; +}; + +partial interface HTMLScriptElement { + attribute DOMString event; + attribute DOMString htmlFor; +}; + +partial interface HTMLTableElement { + attribute DOMString align; + attribute DOMString border; + attribute DOMString frame; + attribute DOMString rules; + attribute DOMString summary; + attribute DOMString width; + + [TreatNullAs=EmptyString] attribute DOMString bgColor; + [TreatNullAs=EmptyString] attribute DOMString cellPadding; + [TreatNullAs=EmptyString] attribute DOMString cellSpacing; +}; + +partial interface HTMLTableSectionElement { + attribute DOMString align; + attribute DOMString ch; + attribute DOMString chOff; + attribute DOMString vAlign; +}; + +partial interface HTMLTableCellElement { + attribute DOMString align; + attribute DOMString axis; + attribute DOMString height; + attribute DOMString width; + + attribute DOMString ch; + attribute DOMString chOff; + attribute boolean noWrap; + attribute DOMString vAlign; + + [TreatNullAs=EmptyString] attribute DOMString bgColor; +}; + +partial interface HTMLTableDataCellElement { + attribute DOMString abbr; +}; + +partial interface HTMLTableRowElement { + attribute DOMString align; + attribute DOMString ch; + attribute DOMString chOff; + attribute DOMString vAlign; + + [TreatNullAs=EmptyString] attribute DOMString bgColor; +}; + +partial interface HTMLUListElement { + attribute boolean compact; + attribute DOMString type; +}; + +partial interface Document { + [TreatNullAs=EmptyString] attribute DOMString fgColor; + [TreatNullAs=EmptyString] attribute DOMString linkColor; + [TreatNullAs=EmptyString] attribute DOMString vlinkColor; + [TreatNullAs=EmptyString] attribute DOMString alinkColor; + [TreatNullAs=EmptyString] attribute DOMString bgColor; + + readonly attribute HTMLCollection anchors; + readonly attribute HTMLCollection applets; + + void clear(); + void captureEvents(); + void releaseEvents(); + + readonly attribute HTMLAllCollection all; +}; + +partial interface Window { + void captureEvents(); + void releaseEvents(); +}; + diff --git a/content/handlers/javascript/WebIDL/uievents.idl b/content/handlers/javascript/WebIDL/uievents.idl new file mode 100644 index 000000000..3f339f381 --- /dev/null +++ b/content/handlers/javascript/WebIDL/uievents.idl @@ -0,0 +1,185 @@ +// Retrived from +// Thu Jul 23 21:40:07 BST 2015 + + +[Constructor(DOMString type, optional UIEventInit eventInitDict)] +interface UIEvent : Event { + readonly attribute Window? view; + readonly attribute long detail; +}; + +dictionary UIEventInit : EventInit { + Window? view = null; + long detail = 0; +}; + +[Constructor(DOMString typeArg, optional FocusEventInit focusEventInitDict)] +interface FocusEvent : UIEvent { + readonly attribute EventTarget? relatedTarget; +}; + +dictionary FocusEventInit : UIEventInit { + EventTarget? relatedTarget = null; +}; + +[Constructor(DOMString typeArg, optional MouseEventInit mouseEventInitDict)] +interface MouseEvent : UIEvent { + readonly attribute long screenX; + readonly attribute long screenY; + readonly attribute long clientX; + readonly attribute long clientY; + readonly attribute boolean ctrlKey; + readonly attribute boolean shiftKey; + readonly attribute boolean altKey; + readonly attribute boolean metaKey; + readonly attribute short button; + readonly attribute EventTarget? relatedTarget; + // Introduced in this specification + readonly attribute unsigned short buttons; + boolean getModifierState (DOMString keyArg); +}; + +dictionary MouseEventInit : EventModifierInit { + long screenX = 0; + long screenY = 0; + long clientX = 0; + long clientY = 0; + short button = 0; + unsigned short buttons = 0; + EventTarget? relatedTarget = null; +}; + +dictionary EventModifierInit : UIEventInit { + boolean ctrlKey = false; + boolean shiftKey = false; + boolean altKey = false; + boolean metaKey = false; + boolean modifierAltGraph = false; + boolean modifierCapsLock = false; + boolean modifierFn = false; + boolean modifierFnLock = false; + boolean modifierHyper = false; + boolean modifierNumLock = false; + boolean modifierOS = false; + boolean modifierScrollLock = false; + boolean modifierSuper = false; + boolean modifierSymbol = false; + boolean modifierSymbolLock = false; +}; + +[Constructor(DOMString typeArg, optional WheelEventInit wheelEventInitDict)] +interface WheelEvent : MouseEvent { + // DeltaModeCode + const unsigned long DOM_DELTA_PIXEL = 0x00; + const unsigned long DOM_DELTA_LINE = 0x01; + const unsigned long DOM_DELTA_PAGE = 0x02; + readonly attribute double deltaX; + readonly attribute double deltaY; + readonly attribute double deltaZ; + readonly attribute unsigned long deltaMode; +}; + +dictionary WheelEventInit : MouseEventInit { + double deltaX = 0.0; + double deltaY = 0.0; + double deltaZ = 0.0; + unsigned long deltaMode = 0; +}; + +[Constructor(DOMString typeArg, optional KeyboardEventInit keyboardEventInitDict)] +interface KeyboardEvent : UIEvent { + // KeyLocationCode + const unsigned long DOM_KEY_LOCATION_STANDARD = 0x00; + const unsigned long DOM_KEY_LOCATION_LEFT = 0x01; + const unsigned long DOM_KEY_LOCATION_RIGHT = 0x02; + const unsigned long DOM_KEY_LOCATION_NUMPAD = 0x03; + readonly attribute DOMString key; + readonly attribute DOMString code; + readonly attribute unsigned long location; + readonly attribute boolean ctrlKey; + readonly attribute boolean shiftKey; + readonly attribute boolean altKey; + readonly attribute boolean metaKey; + readonly attribute boolean repeat; + readonly attribute boolean isComposing; + boolean getModifierState (DOMString keyArg); +}; + +dictionary KeyboardEventInit : EventModifierInit { + DOMString key = ""; + DOMString code = ""; + unsigned long location = 0; + boolean repeat = false; + boolean isComposing = false; +}; + +[Constructor(DOMString typeArg, optional CompositionEventInit compositionEventInitDict)] +interface CompositionEvent : UIEvent { + readonly attribute DOMString data; +}; + +dictionary CompositionEventInit : UIEventInit { + DOMString data = ""; +}; + +partial interface CustomEvent { + // Originally introduced (and deprecated) in this specification + void initCustomEvent (DOMString typeArg, boolean bubblesArg, boolean cancelableArg, any detailArg); +}; + +partial interface UIEvent { + // Deprecated in this specification + void initUIEvent (DOMString typeArg, boolean bubblesArg, boolean cancelableArg, Window? viewArg, long detailArg); +}; + +partial interface FocusEvent { + // Originally introduced (and deprecated) in this specification + void initFocusEvent (DOMString typeArg, boolean bubblesArg, boolean cancelableArg, Window? viewArg, long detailArg, EventTarget? relatedTargetArg); +}; + +partial interface MouseEvent { + // Deprecated in this specification + void initMouseEvent (DOMString typeArg, boolean bubblesArg, boolean cancelableArg, Window? viewArg, long detailArg, long screenXArg, long screenYArg, long clientXArg, long clientYArg, boolean ctrlKeyArg, boolean altKeyArg, boolean shiftKeyArg, boolean metaKeyArg, short buttonArg, EventTarget? relatedTargetArg); +}; + +partial interface WheelEvent { + // Originally introduced (and deprecated) in this specification + void initWheelEvent (DOMString typeArg, boolean bubblesArg, boolean cancelableArg, Window? viewArg, long detailArg, long screenXArg, long screenYArg, long clientXArg, long clientYArg, short buttonArg, EventTarget? relatedTargetArg, DOMString modifiersListArg, double deltaXArg, double deltaYArg, double deltaZArg, unsigned long deltaMode); +}; + +partial interface KeyboardEvent { + // Originally introduced (and deprecated) in this specification + void initKeyboardEvent (DOMString typeArg, boolean bubblesArg, boolean cancelableArg, Window? viewArg, DOMString keyArg, unsigned long locationArg, DOMString modifiersListArg, boolean repeat, DOMString locale); +}; + +partial interface CompositionEvent { + // Originally introduced (and deprecated) in this specification + void initCompositionEvent (DOMString typeArg, boolean bubblesArg, boolean cancelableArg, Window? viewArg, DOMString dataArg, DOMString locale); +}; + +partial interface KeyboardEvent { + // The following support legacy user agents + readonly attribute unsigned long charCode; + readonly attribute unsigned long keyCode; + readonly attribute unsigned long which; +}; + +partial dictionary KeyboardEventInit { + unsigned long charCode = 0; + unsigned long keyCode = 0; + unsigned long which = 0; +}; + +interface MutationEvent : Event { + // attrChangeType + const unsigned short MODIFICATION = 1; + const unsigned short ADDITION = 2; + const unsigned short REMOVAL = 3; + readonly attribute Node? relatedNode; + readonly attribute DOMString prevValue; + readonly attribute DOMString newValue; + readonly attribute DOMString attrName; + readonly attribute unsigned short attrChange; + void initMutationEvent (DOMString typeArg, boolean bubblesArg, boolean cancelableArg, Node? relatedNodeArg, DOMString prevValueArg, DOMString newValueArg, DOMString attrNameArg, unsigned short attrChangeArg); +}; + diff --git a/content/handlers/javascript/WebIDL/urlutils.idl b/content/handlers/javascript/WebIDL/urlutils.idl new file mode 100644 index 000000000..e79d4ad42 --- /dev/null +++ b/content/handlers/javascript/WebIDL/urlutils.idl @@ -0,0 +1,65 @@ +// Retrived from https://url.spec.whatwg.org +// Tue Aug 11 12:11:31 BST 2015 +// Removed duplicate IDL from appendix + +[Constructor(USVString url, optional USVString base), + Exposed=(Window,Worker)] +interface URL { + static USVString domainToASCII(USVString domain); + static USVString domainToUnicode(USVString domain); +}; +URL implements URLUtils; +URL implements URLUtilsSearchParams; + +[NoInterfaceObject, + Exposed=(Window,Worker)] +interface URLUtils { + stringifier attribute USVString href; + readonly attribute USVString origin; + + attribute USVString protocol; + attribute USVString username; + attribute USVString password; + attribute USVString host; + attribute USVString hostname; + attribute USVString port; + attribute USVString pathname; + attribute USVString search; + attribute USVString hash; +}; + +[NoInterfaceObject, + Exposed=(Window, Worker)] +interface URLUtilsSearchParams { + attribute URLSearchParams searchParams; +}; + +[NoInterfaceObject, + Exposed=(Window,Worker)] +interface URLUtilsReadOnly { + stringifier readonly attribute USVString href; + readonly attribute USVString origin; + + readonly attribute USVString protocol; + readonly attribute USVString host; + readonly attribute USVString hostname; + readonly attribute USVString port; + readonly attribute USVString pathname; + readonly attribute USVString search; + readonly attribute USVString hash; +}; + +[Constructor(optional (USVString or URLSearchParams) init = ""), + Exposed=(Window,Worker)] +interface URLSearchParams { + void append(USVString name, USVString value); + void delete(USVString name); + USVString? get(USVString name); + sequence getAll(USVString name); + boolean has(USVString name); + void set(USVString name, USVString value); + iterable; + stringifier; +}; + + diff --git a/content/handlers/javascript/content.c b/content/handlers/javascript/content.c new file mode 100644 index 000000000..ef5614094 --- /dev/null +++ b/content/handlers/javascript/content.c @@ -0,0 +1,120 @@ +/* + * Copyright 2012 Vincent Sanders + * + * This file is part of NetSurf, http://www.netsurf-browser.org/ + * + * NetSurf is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * NetSurf is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +/** \file + * Content for javascript (implementation) + */ + +#include +#include +#include +#include + +#include "utils/config.h" +#include "content/content_protected.h" +#include "content/hlcache.h" +#include "utils/log.h" +#include "utils/messages.h" +#include "utils/utils.h" +#include "javascript/content.h" + +typedef struct javascript_content { + struct content base; +} javascript_content; + +static nserror javascript_create(const content_handler *handler, + lwc_string *imime_type, const struct http_parameter *params, + llcache_handle *llcache, const char *fallback_charset, + bool quirks, struct content **c) +{ + javascript_content *script; + nserror error; + + script = calloc(1, sizeof(javascript_content)); + if (script == NULL) + return NSERROR_NOMEM; + + error = content__init(&script->base, handler, imime_type, params, + llcache, fallback_charset, quirks); + if (error != NSERROR_OK) { + free(script); + return error; + } + + *c = (struct content *) script; + + return NSERROR_OK; +} + +static bool javascript_convert(struct content *c) +{ + content_set_ready(c); + content_set_done(c); + + return true; +} + +static nserror +javascript_clone(const struct content *old, struct content **newc) +{ + javascript_content *script; + nserror error; + + script = calloc(1, sizeof(javascript_content)); + if (script == NULL) + return NSERROR_NOMEM; + + error = content__clone(old, &script->base); + if (error != NSERROR_OK) { + content_destroy(&script->base); + return error; + } + + *newc = (struct content *) script; + + return NSERROR_OK; +} + +static void javascript_destroy(struct content *c) +{ +} + +static content_type javascript_content_type(void) +{ + return CONTENT_JS; +} + + +static const content_handler javascript_content_handler = { + .create = javascript_create, + .data_complete = javascript_convert, + .destroy = javascript_destroy, + .clone = javascript_clone, + .type = javascript_content_type, + .no_share = false, +}; + +static const char *javascript_types[] = { + "application/javascript", /* RFC 4329 */ + "application/ecmascript", /* RFC 4329 */ + "application/x-javascript", /* common usage */ + "text/javascript", /* common usage */ + "text/ecmascript", /* common usage */ +}; + +CONTENT_FACTORY_REGISTER_TYPES(javascript, javascript_types, javascript_content_handler); diff --git a/content/handlers/javascript/content.h b/content/handlers/javascript/content.h new file mode 100644 index 000000000..f8160b4b1 --- /dev/null +++ b/content/handlers/javascript/content.h @@ -0,0 +1 @@ +nserror javascript_init(void); diff --git a/content/handlers/javascript/duktape/Console.bnd b/content/handlers/javascript/duktape/Console.bnd new file mode 100644 index 000000000..734f0035a --- /dev/null +++ b/content/handlers/javascript/duktape/Console.bnd @@ -0,0 +1,177 @@ +/* Console binding for browser using duktape and libdom + * + * Copyright 2015 Vincent Sanders + * Copyright 2015 Daniel Silverstone + * + * This file is part of NetSurf, http://www.netsurf-browser.org/ + * + * Released under the terms of the MIT License, + * http://www.opensource.org/licenses/mit-license + */ + +class Console { + private unsigned int group; + prologue %{ +#include + +#define CONSOLE_TIMERS MAGIC(ConsoleTimers) + +static void +write_log_entry(duk_context *ctx, unsigned int group, char logtype) +{ + /* objs... */ + for (int i = 0; i < duk_get_top(ctx); ++i) { + (void)duk_safe_to_string(ctx, i); + } + /* strs... */ + duk_push_sprintf(ctx, "%c: ", logtype); + duk_insert(ctx, 0); + /* pfx strs... */ + for (unsigned int u = 0; u < group; ++u) { + duk_push_lstring(ctx, " ", 1); + duk_insert(ctx, 0); + } + /* spcs... pfx strs... */ + duk_concat(ctx, duk_get_top(ctx)); + /* str */ + LOG("%s", duk_safe_to_string(ctx, 0)); +} + +%}; +}; + +init Console () +%{ + priv->group = 0; + duk_push_object(ctx); + duk_put_prop_string(ctx, 0, CONSOLE_TIMERS); +%} + +method Console::group () +%{ + priv->group ++; + return 0; +%} + +method Console::groupCollapsed () +%{ + priv->group ++; + return 0; +%} + +method Console::groupEnd () +%{ + if (priv->group) + priv->group --; + return 0; +%} + +method Console::info() +%{ + write_log_entry(ctx, priv->group, 'I'); + return 0; +%} + +method Console::debug() +%{ + write_log_entry(ctx, priv->group, 'D'); + return 0; +%} + +method Console::error() +%{ + write_log_entry(ctx, priv->group, 'E'); + return 0; +%} + +method Console::log() +%{ + write_log_entry(ctx, priv->group, 'L'); + return 0; +%} + +method Console::warn() +%{ + write_log_entry(ctx, priv->group, 'W'); + return 0; +%} + +method Console::dir() +%{ + write_log_entry(ctx, priv->group, 'd'); + return 0; +%} + +method Console::time() +%{ + uint64_t time_ms = 0; + + if (nsu_getmonotonic_ms(&time_ms) != NSUERROR_OK) + return 0; + + if (!duk_is_string(ctx, 0)) { + duk_error(ctx, DUK_ERR_ERROR, "Console.time() takes a string"); + } + + duk_set_top(ctx, 1); + + duk_push_uint(ctx, (duk_uint_t)time_ms); + + duk_push_this(ctx); + duk_get_prop_string(ctx, -1, CONSOLE_TIMERS); + duk_insert(ctx, 0); + duk_pop(ctx); + + duk_put_prop(ctx, 0); + + return 0; +%} + +method Console::timeEnd() +%{ + uint64_t time_ms = 0; + uint64_t old_time_ms = 0; + + if (nsu_getmonotonic_ms(&time_ms) != NSUERROR_OK) + return 0; + + if (!duk_is_string(ctx, 0)) { + duk_error(ctx, DUK_ERR_ERROR, "Console.time() takes a string"); + } + + duk_set_top(ctx, 1); + + duk_push_this(ctx); + duk_get_prop_string(ctx, -1, CONSOLE_TIMERS); + duk_insert(ctx, 0); + duk_pop(ctx); + + duk_dup(ctx, -1); + duk_get_prop(ctx, 0); + if (duk_is_undefined(ctx, -1)) { + duk_pop(ctx); + duk_push_uint(ctx, (duk_uint_t)time_ms); + } + /* timers timername oldval */ + old_time_ms = duk_to_uint32(ctx, -1); + duk_pop(ctx); + duk_dup(ctx, -1); + duk_insert(ctx, 0); + duk_del_prop(ctx, 0); + duk_push_string(ctx, "Timer elapsed: "); + duk_insert(ctx, 0); + duk_push_sprintf(ctx, "%lu ms", (duk_uint_t)(time_ms - old_time_ms)); + write_log_entry(ctx, priv->group, 'T'); + return 0; +%} + +method Console::trace () +%{ + duk_idx_t i = duk_push_error_object(ctx, DUK_ERR_ERROR, "Dummy Error"); + duk_get_prop_string(ctx, i, "stack"); + duk_safe_to_string(ctx, -1); + duk_insert(ctx, 0); + duk_set_top(ctx, 1); + write_log_entry(ctx, priv->group, 'S'); + return 0; +%} diff --git a/content/handlers/javascript/duktape/Document.bnd b/content/handlers/javascript/duktape/Document.bnd new file mode 100644 index 000000000..8658aec45 --- /dev/null +++ b/content/handlers/javascript/duktape/Document.bnd @@ -0,0 +1,445 @@ +/* document binding for browser using duktape and libdom + * + * Copyright 2015 Vincent Sanders + * + * This file is part of NetSurf, http://www.netsurf-browser.org/ + * + * Released under the terms of the MIT License, + * http://www.opensource.org/licenses/mit-license + */ + +prologue Document() +%{ +#include "utils/corestrings.h" +#include "utils/libdom.h" +#include "utils/utils.h" +#include "content/hlcache.h" +#include "render/html_internal.h" +#include "content/urldb.h" + +#define HANDLER_MAGIC MAGIC(HANDLER_MAP) +%} + + +init Document(struct dom_document *document::node); + +method Document::write() +%{ + struct html_content *htmlc; + duk_size_t text_len; + dom_exception err; + const char *text; + + for (int i = 0; i < duk_get_top(ctx); ++i) { + duk_safe_to_string(ctx, i); + } + duk_concat(ctx, duk_get_top(ctx)); + text = duk_safe_to_lstring(ctx, 0, &text_len); + JS_LOG("Writing %*s", (int)text_len, text); + + err = dom_node_get_user_data(priv->parent.node, + corestring_dom___ns_key_html_content_data, + &htmlc); + if ((err != DOM_NO_ERR) || (htmlc == NULL)) { + LOG("error getting htmlc. parent node:%p htmlc:%p", + priv->parent.node, htmlc); + return 0; + } else if (htmlc->parser == NULL) { + LOG("error; no parser for htmlc: %p", htmlc); + return 0; + } + + dom_hubbub_parser_insert_chunk(htmlc->parser, + (uint8_t *)text, text_len); + + return 0; +%} + +method Document::writeln() +%{ + const char nl[] = "\n"; + struct html_content *htmlc; + duk_size_t text_len; + const char *text; + dom_exception err; + + for (int i = 0; i < duk_get_top(ctx); ++i) { + duk_safe_to_string(ctx, i); + } + duk_concat(ctx, duk_get_top(ctx)); + text = duk_safe_to_lstring(ctx, 0, &text_len); + + JS_LOG("Writeln %*s", (int)text_len, text); + err = dom_node_get_user_data(priv->parent.node, + corestring_dom___ns_key_html_content_data, + &htmlc); + if ((err != DOM_NO_ERR) || (htmlc == NULL)) { + LOG("error getting htmlc. parent node:%p htmlc:%p", + priv->parent.node, htmlc); + return 0; + } else if (htmlc->parser == NULL) { + LOG("error; no parser for htmlc: %p", htmlc); + return 0; + } + + dom_hubbub_parser_insert_chunk(htmlc->parser, (uint8_t *)text, text_len); + dom_hubbub_parser_insert_chunk(htmlc->parser, (uint8_t *)nl, SLEN(nl)); + + return 0; +%} + +method Document::createTextNode() +%{ + dom_node *newnode; + dom_exception err; + duk_size_t text_len; + const char *text = duk_safe_to_lstring(ctx, 0, &text_len); + dom_string *text_str; + + err = dom_string_create((const uint8_t*)text, text_len, &text_str); + if (err != DOM_NO_ERR) return 0; /* coerced to undefined */ + + err = dom_document_create_text_node(priv->parent.node, + text_str, + &newnode); + if (err != DOM_NO_ERR) { + dom_string_unref(text_str); + return 0; /* coerced to undefined */ + } + + dom_string_unref(text_str); + + dukky_push_node(ctx, newnode); + + dom_node_unref(newnode); + + return 1; +%} + +method Document::createElement() +%{ + dom_node *newnode; + dom_exception err; + duk_size_t text_len; + const char *text = duk_safe_to_lstring(ctx, 0, &text_len); + dom_string *text_str; + + err = dom_string_create((const uint8_t*)text, text_len, &text_str); + if (err != DOM_NO_ERR) return 0; /* coerced to undefined */ + + err = dom_document_create_element_ns(priv->parent.node, + corestring_dom_html_namespace, + text_str, + &newnode); + if (err != DOM_NO_ERR) { + dom_string_unref(text_str); + return 0; /* coerced to undefined */ + } + + dom_string_unref(text_str); + + dukky_push_node(ctx, newnode); + + dom_node_unref(newnode); + + return 1; +%} + +getter Document::head() +%{ + struct dom_nodelist *nodes; + struct dom_node *retnode; + dom_exception err; + err = dom_document_get_elements_by_tag_name(priv->parent.node, + corestring_dom_HEAD, + &nodes); + if (err != DOM_NO_ERR) return 0; /* coerced to undefined */ + + err = dom_nodelist_item(nodes, 0, &retnode); + + if (err != DOM_NO_ERR) { + dom_nodelist_unref(nodes); + return 0; /* coerced to undefined */ + } + + dom_nodelist_unref(nodes); + + if (retnode == NULL) return 0; /* coerced to undefined */ + + dukky_push_node(ctx, retnode); + + dom_node_unref(retnode); + + return 1; +%} + +getter Document::body() +%{ + struct dom_nodelist *nodes; + struct dom_node *retnode; + dom_exception err; + err = dom_document_get_elements_by_tag_name(priv->parent.node, + corestring_dom_BODY, + &nodes); + if (err != DOM_NO_ERR) { + return 0; /* coerced to undefined */ + } + + err = dom_nodelist_item(nodes, 0, &retnode); + + if (err != DOM_NO_ERR) { + dom_nodelist_unref(nodes); + return 0; /* coerced to undefined */ + } + + dom_nodelist_unref(nodes); + + if (retnode != NULL) { + dukky_push_node(ctx, retnode); + + dom_node_unref(retnode); + + return 1; + } + + return 0; /* coerced to undefined */ +%} + +getter Document::location() +%{ + /* retrieve the location object from the root object (window) */ + duk_push_global_object(ctx); + duk_get_prop_string(ctx, -1, "location"); + if (duk_is_undefined(ctx, -1)) { + duk_pop(ctx); + return 0; + } + return 1; +%} + + +method Document::getElementById() +%{ + dom_string *elementId_dom; + dom_element *element; + dom_exception exc; + duk_size_t text_len; + const char *text = duk_safe_to_lstring(ctx, 0, &text_len); + + exc = dom_string_create((uint8_t*)text, text_len, &elementId_dom); + if (exc != DOM_NO_ERR) { + return 0; + } + + exc = dom_document_get_element_by_id(((node_private_t *)priv)->node, + elementId_dom, &element); + dom_string_unref(elementId_dom); + if (exc != DOM_NO_ERR) { + return 0; + } + + if (element != NULL) { + dukky_push_node(ctx, (dom_node *)element); + dom_node_unref(element); + return 1; + } + + return 0; +%} + +getter Document::documentElement() +%{ + dom_exception exc; + dom_element *element; + + exc = dom_document_get_document_element(((node_private_t *)priv)->node, + &element); + if (exc != DOM_NO_ERR) { + return 0; + } + + if (element == NULL) { + return 0; + } + + dukky_push_node(ctx, (dom_node *)element); + dom_node_unref(element); + + return 1; + +%} + +method Document::getElementsByTagName() +%{ + dom_nodelist *nodes; + dom_exception err; + duk_size_t text_len; + const char *text = duk_safe_to_lstring(ctx, 0, &text_len); + dom_string *tag; + + err = dom_string_create((uint8_t*)text, text_len, &tag); + + if (err != DOM_NO_ERR) return 0; /* coerced to undefined */ + + err = dom_document_get_elements_by_tag_name(((node_private_t *)priv)->node, + tag, &nodes); + dom_string_unref(tag); + if (err != DOM_NO_ERR) return 0; /* coerced to undefined */ + + if (nodes == NULL) return 0; /* coerced to undefined */ + + duk_push_pointer(ctx, nodes); + dukky_create_object(ctx, PROTO_NAME(NODELIST), 1); + dom_nodelist_unref(nodes); + return 1; +%} + +getter Document::cookie() +%{ + char *cookie_str; + struct html_content *htmlc; + dom_exception err; + + err = dom_node_get_user_data(priv->parent.node, + corestring_dom___ns_key_html_content_data, + &htmlc); + if ((err == DOM_NO_ERR) && (htmlc != NULL)) { + cookie_str = urldb_get_cookie(llcache_handle_get_url(htmlc->base.llcache), false); + if (cookie_str != NULL) { + duk_push_string(ctx, cookie_str); + free(cookie_str); + return 1; + } + } else { + LOG("error getting htmlc. parent node:%p htmlc:%p", + priv->parent.node, htmlc); + } + return 0; +%} + +getter Document::onabort(); +setter Document::onabort(); +getter Document::onautocompleteerror(); +setter Document::onautocompleteerror(); +getter Document::onautocomplete(); +setter Document::onautocomplete(); +getter Document::onblur(); +setter Document::onblur(); +getter Document::oncancel(); +setter Document::oncancel(); +getter Document::oncanplaythrough(); +setter Document::oncanplaythrough(); +getter Document::oncanplay(); +setter Document::oncanplay(); +getter Document::onchange(); +setter Document::onchange(); +getter Document::onclick(); +setter Document::onclick(); +getter Document::onclose(); +setter Document::onclose(); +getter Document::oncontextmenu(); +setter Document::oncontextmenu(); +getter Document::oncuechange(); +setter Document::oncuechange(); +getter Document::ondblclick(); +setter Document::ondblclick(); +getter Document::ondragend(); +setter Document::ondragend(); +getter Document::ondragenter(); +setter Document::ondragenter(); +getter Document::ondragexit(); +setter Document::ondragexit(); +getter Document::ondragleave(); +setter Document::ondragleave(); +getter Document::ondragover(); +setter Document::ondragover(); +getter Document::ondragstart(); +setter Document::ondragstart(); +getter Document::ondrag(); +setter Document::ondrag(); +getter Document::ondrop(); +setter Document::ondrop(); +getter Document::ondurationchange(); +setter Document::ondurationchange(); +getter Document::onemptied(); +setter Document::onemptied(); +getter Document::onended(); +setter Document::onended(); +getter Document::onfocus(); +setter Document::onfocus(); +getter Document::oninput(); +setter Document::oninput(); +getter Document::oninvalid(); +setter Document::oninvalid(); +getter Document::onkeydown(); +setter Document::onkeydown(); +getter Document::onkeypress(); +setter Document::onkeypress(); +getter Document::onkeyup(); +setter Document::onkeyup(); +getter Document::onloadeddata(); +setter Document::onloadeddata(); +getter Document::onloadedmetadata(); +setter Document::onloadedmetadata(); +getter Document::onloadstart(); +setter Document::onloadstart(); +getter Document::onload(); +setter Document::onload(); +getter Document::onmousedown(); +setter Document::onmousedown(); +getter Document::onmouseenter(); +setter Document::onmouseenter(); +getter Document::onmouseleave(); +setter Document::onmouseleave(); +getter Document::onmousemove(); +setter Document::onmousemove(); +getter Document::onmouseout(); +setter Document::onmouseout(); +getter Document::onmouseover(); +setter Document::onmouseover(); +getter Document::onmouseup(); +setter Document::onmouseup(); +getter Document::onpause(); +setter Document::onpause(); +getter Document::onplaying(); +setter Document::onplaying(); +getter Document::onplay(); +setter Document::onplay(); +getter Document::onprogress(); +setter Document::onprogress(); +getter Document::onratechange(); +setter Document::onratechange(); +getter Document::onreadystatechange(); +setter Document::onreadystatechange(); +getter Document::onreset(); +setter Document::onreset(); +getter Document::onresize(); +setter Document::onresize(); +getter Document::onscroll(); +setter Document::onscroll(); +getter Document::onseeked(); +setter Document::onseeked(); +getter Document::onseeking(); +setter Document::onseeking(); +getter Document::onselect(); +setter Document::onselect(); +getter Document::onshow(); +setter Document::onshow(); +getter Document::onsort(); +setter Document::onsort(); +getter Document::onstalled(); +setter Document::onstalled(); +getter Document::onsubmit(); +setter Document::onsubmit(); +getter Document::onsuspend(); +setter Document::onsuspend(); +getter Document::ontimeupdate(); +setter Document::ontimeupdate(); +getter Document::ontoggle(); +setter Document::ontoggle(); +getter Document::onvolumechange(); +setter Document::onvolumechange(); +getter Document::onwaiting(); +setter Document::onwaiting(); +getter Document::onwheel(); +setter Document::onwheel(); diff --git a/content/handlers/javascript/duktape/Element.bnd b/content/handlers/javascript/duktape/Element.bnd new file mode 100644 index 000000000..d34e8c1eb --- /dev/null +++ b/content/handlers/javascript/duktape/Element.bnd @@ -0,0 +1,379 @@ +/* document binding for browser using duktape and libdom + * + * Copyright 2015 Vincent Sanders + * + * This file is part of NetSurf, http://www.netsurf-browser.org/ + * + * Released under the terms of the MIT License, + * http://www.opensource.org/licenses/mit-license + */ + +class Element { + prologue %{ +#include +%}; +}; + +init Element(struct dom_element *element::node); + +getter Element::firstElementChild() +%{ + dom_node *element; + dom_exception exc; + dom_node_type node_type; + dom_node *next_node; + + exc = dom_node_get_first_child(((node_private_t*)priv)->node, &element); + if (exc != DOM_NO_ERR) { + return 0; + } + + while (element != NULL) { + exc = dom_node_get_node_type(element, &node_type); + if ((exc == DOM_NO_ERR) && (node_type == DOM_ELEMENT_NODE)) { + /* found it */ + break; + } + + exc = dom_node_get_next_sibling(element, &next_node); + dom_node_unref(element); + if (exc == DOM_NO_ERR) { + element = next_node; + } else { + element = NULL; + } + } + if (dukky_push_node(ctx, (dom_node *)element) == false) { + dom_node_unref(element); + return 0; + } + dom_node_unref(element); + return 1; +%} + +getter Element::lastElementChild() +%{ + dom_node *element; + dom_exception exc; + dom_node_type node_type; + dom_node *next_node; + + exc = dom_node_get_last_child(((node_private_t*)priv)->node, &element); + if (exc != DOM_NO_ERR) { + return 0; + } + + while (element != NULL) { + exc = dom_node_get_node_type(element, &node_type); + if ((exc == DOM_NO_ERR) && (node_type == DOM_ELEMENT_NODE)) { + /* found it */ + break; + } + + exc = dom_node_get_previous_sibling(element, &next_node); + dom_node_unref(element); + if (exc == DOM_NO_ERR) { + element = next_node; + } else { + element = NULL; + } + } + if (dukky_push_node(ctx, (dom_node *)element) == false) { + dom_node_unref(element); + return 0; + } + dom_node_unref(element); + return 1; +%} + +getter Element::previousElementSibling() +%{ + dom_node *element; + dom_exception exc; + dom_node_type node_type; + dom_node *sib_node; + + exc = dom_node_get_previous_sibling(((node_private_t *)priv)->node, &element); + if (exc != DOM_NO_ERR) { + return 0; + } + + while (element != NULL) { + exc = dom_node_get_node_type(element, &node_type); + if ((exc == DOM_NO_ERR) && (node_type == DOM_ELEMENT_NODE)) { + /* found it */ + break; + } + + exc = dom_node_get_previous_sibling(element, &sib_node); + dom_node_unref(element); + if (exc == DOM_NO_ERR) { + element = sib_node; + } else { + element = NULL; + } + } + if (dukky_push_node(ctx, (dom_node *)element) == false) { + dom_node_unref(element); + return 0; + } + dom_node_unref(element); + return 1; +%} + +getter Element::nextElementSibling() +%{ + dom_node *element; + dom_exception exc; + dom_node_type node_type; + dom_node *sib_node; + + exc = dom_node_get_next_sibling(((node_private_t *)priv)->node, &element); + if (exc != DOM_NO_ERR) { + return 0; + } + + while (element != NULL) { + exc = dom_node_get_node_type(element, &node_type); + if ((exc == DOM_NO_ERR) && (node_type == DOM_ELEMENT_NODE)) { + /* found it */ + break; + } + + exc = dom_node_get_next_sibling(element, &sib_node); + dom_node_unref(element); + if (exc == DOM_NO_ERR) { + element = sib_node; + } else { + element = NULL; + } + } + if (dukky_push_node(ctx, (dom_node *)element) == false) { + dom_node_unref(element); + return 0; + } + dom_node_unref(element); + return 1; +%} + +getter Element::childElementCount() +%{ + dom_node *element; + dom_exception exc; + dom_node_type node_type; + dom_node *next_node; + duk_uint_t jsret = 0; + + exc = dom_node_get_first_child(((node_private_t *)priv)->node, &element); + if (exc != DOM_NO_ERR) { + return 0; + } + + while (element != NULL) { + exc = dom_node_get_node_type(element, &node_type); + if ((exc == DOM_NO_ERR) && (node_type == DOM_ELEMENT_NODE)) { + jsret += 1; + } + + exc = dom_node_get_next_sibling(element, &next_node); + dom_node_unref(element); + if (exc == DOM_NO_ERR) { + element = next_node; + } else { + element = NULL; + } + } + LOG("I found %u of them", jsret); + duk_push_uint(ctx, jsret); + return 1; +%} + +method Element::getElementsByTagName () +%{ + dom_nodelist *nlist = NULL; + dom_exception exc; + dom_string *tagname; + duk_size_t len; + const char *str = duk_to_lstring(ctx, 0, &len); + + exc = dom_string_create((const uint8_t *)str, len, &tagname); + + if (exc != DOM_NO_ERR) return 0; + + exc = dom_element_get_elements_by_tag_name(priv->parent.node, + tagname, &nlist); + dom_string_unref(tagname); + if (exc != DOM_NO_ERR) return 0; + duk_push_pointer(ctx, nlist); + dukky_create_object(ctx, PROTO_NAME(NODELIST), 1); + dom_nodelist_unref(nlist); + + return 1; +%} + +getter Element::id () +%{ + dom_string *idstr = NULL; + dom_exception exc; + + exc = dom_element_get_attribute(priv->parent.node, + corestring_dom_id, + &idstr); + if (exc != DOM_NO_ERR) return 0; + if (idstr == NULL) { + duk_push_lstring(ctx, "", 0); + } else { + duk_push_lstring(ctx, dom_string_data(idstr), + dom_string_length(idstr)); + dom_string_unref(idstr); + } + return 1; +%} + +setter Element::id () +%{ + dom_string *idstr = NULL; + dom_exception exc; + duk_size_t slen; + const char *s = duk_safe_to_lstring(ctx, 0, &slen); + + exc = dom_string_create((const uint8_t *)s, slen, &idstr); + if (exc != DOM_NO_ERR) return 0; + + exc = dom_element_set_attribute(priv->parent.node, + corestring_dom_id, + idstr); + dom_string_unref(idstr); + if (exc != DOM_NO_ERR) return 0; + return 0; +%} + + +method Element::removeAttribute() +%{ + dom_string *attr = NULL; + dom_exception exc; + duk_size_t slen; + const char *s = duk_safe_to_lstring(ctx, 0, &slen); + + exc = dom_string_create((const uint8_t *)s, slen, &attr); + if (exc != DOM_NO_ERR) return 0; + + exc = dom_element_remove_attribute(priv->parent.node, attr); + dom_string_unref(attr); + if (exc != DOM_NO_ERR) return 0; + return 0; +%} + +method Element::getAttribute() +%{ + dom_string *attr_name = NULL; + dom_string *attr_value = NULL; + dom_exception exc; + duk_size_t slen; + + const char *s = duk_safe_to_lstring(ctx, 0, &slen); + exc = dom_string_create((const uint8_t *)s, slen, &attr_name); + duk_pop(ctx); + + exc = dom_element_get_attribute(priv->parent.node, + attr_name, &attr_value); + dom_string_unref(attr_name); + if (exc != DOM_NO_ERR) { + return 0; + } + + if (attr_value == NULL) { + duk_push_null(ctx); + } else { + duk_push_lstring(ctx, dom_string_data(attr_value), + dom_string_length(attr_value)); + dom_string_unref(attr_value); + } + return 1; +%} + +method Element::setAttribute() +%{ + dom_exception exc; + dom_string *attr_str, *value_str; + duk_size_t attr_len, value_len; + const char *attr = duk_safe_to_lstring(ctx, 0, &attr_len); + const char *value = duk_safe_to_lstring(ctx, 1, &value_len); + + exc = dom_string_create((const uint8_t *)attr, attr_len, &attr_str); + if (exc != DOM_NO_ERR) return 0; + + exc = dom_string_create((const uint8_t *)value, value_len, &value_str); + if (exc != DOM_NO_ERR) { + dom_string_unref(attr_str); + return 0; + } + + exc = dom_element_set_attribute(priv->parent.node, + attr_str, value_str); + dom_string_unref(attr_str); + dom_string_unref(value_str); + if (exc != DOM_NO_ERR) return 0; + return 0; +%} + +method Element::hasAttribute() +%{ + dom_string *attr_name = NULL; + dom_exception exc; + duk_size_t slen; + bool res; + + const char *s = duk_safe_to_lstring(ctx, 0, &slen); + exc = dom_string_create((const uint8_t *)s, slen, &attr_name); + duk_pop(ctx); + + exc = dom_element_has_attribute(priv->parent.node, + attr_name, &res); + dom_string_unref(attr_name); + if (exc != DOM_NO_ERR) { + return 0; + } + + duk_push_boolean(ctx, res); + return 1; +%} + +getter Element::className () +%{ + dom_string *classstr = NULL; + dom_exception exc; + + exc = dom_element_get_attribute(priv->parent.node, + corestring_dom_class, + &classstr); + if (exc != DOM_NO_ERR) return 0; + if (classstr == NULL) { + duk_push_lstring(ctx, "", 0); + } else { + duk_push_lstring(ctx, dom_string_data(classstr), + dom_string_length(classstr)); + dom_string_unref(classstr); + } + return 1; +%} + +setter Element::className () +%{ + dom_string *classstr = NULL; + dom_exception exc; + duk_size_t slen; + const char *s = duk_safe_to_lstring(ctx, 0, &slen); + + exc = dom_string_create((const uint8_t *)s, slen, &classstr); + if (exc != DOM_NO_ERR) return 0; + + exc = dom_element_set_attribute(priv->parent.node, + corestring_dom_class, + classstr); + dom_string_unref(classstr); + if (exc != DOM_NO_ERR) return 0; + return 0; +%} + diff --git a/content/handlers/javascript/duktape/Event.bnd b/content/handlers/javascript/duktape/Event.bnd new file mode 100644 index 000000000..a0bc3c3e7 --- /dev/null +++ b/content/handlers/javascript/duktape/Event.bnd @@ -0,0 +1,150 @@ +/* Event binding for browser using duktape and libdom + * + * Copyright 2015 Vincent Sanders + * Copyright 2015 Daniel Silverstone + * + * This file is part of NetSurf, http://www.netsurf-browser.org/ + * + * Released under the terms of the MIT License, + * http://www.opensource.org/licenses/mit-license + */ + +class Event { + private dom_event *evt; +}; + +init Event (struct dom_event *evt) +%{ + priv->evt = evt; + dom_event_ref(evt); +%} + +fini Event () +%{ + dom_event_unref(priv->evt); +%} + +/* Note: many of these could be automatics once nsgenbind gets there. */ + +getter Event::type () +%{ + dom_string *ret; + dom_exception exc; + + exc = dom_event_get_type(priv->evt, &ret); + if (exc != DOM_NO_ERR) return 0; + if (ret == NULL) { + duk_push_lstring(ctx, "", 0); + } else { + duk_push_lstring(ctx, dom_string_data(ret), + dom_string_length(ret)); + dom_string_unref(ret); + } + + return 1; +%} + +getter Event::target () +%{ + /** @todo Decide HTF this works wrt. Window as an event target */ + dom_node *et; + dom_exception exc; + + exc = dom_event_get_target(priv->evt, &et); + if (exc != DOM_NO_ERR) return 0; + + dukky_push_node(ctx, et); + return 1; +%} + +getter Event::currentTarget () +%{ + /** @todo Decide HTF this works wrt. Window as an event target */ + dom_node *et; + dom_exception exc; + + exc = dom_event_get_current_target(priv->evt, &et); + if (exc != DOM_NO_ERR) return 0; + + dukky_push_node(ctx, et); + return 1; +%} + +getter Event::eventPhase () +%{ + dom_exception exc; + dom_event_flow_phase phase; + + exc = dom_event_get_event_phase(priv->evt, &phase); + if (exc != DOM_NO_ERR) return 0; + + duk_push_uint(ctx, phase); + return 1; +%} + +method Event::stopPropagation () +%{ + dom_exception exc; + + exc = dom_event_stop_propagation(priv->evt); + if (exc != DOM_NO_ERR) return 0; + + return 0; +%} + +method Event::stopImmediatePropagation () +%{ + dom_exception exc; + + exc = dom_event_stop_immediate_propagation(priv->evt); + if (exc != DOM_NO_ERR) return 0; + + return 0; +%} + +getter Event::bubbles () +%{ + dom_exception exc; + bool ret; + + exc = dom_event_get_bubbles(priv->evt, &ret); + if (exc != DOM_NO_ERR) return 0; + + duk_push_boolean(ctx, ret); + return 1; +%} + +getter Event::cancelable () +%{ + dom_exception exc; + bool ret; + + exc = dom_event_get_cancelable(priv->evt, &ret); + if (exc != DOM_NO_ERR) return 0; + + duk_push_boolean(ctx, ret); + return 1; +%} + +method Event::preventDefault () +%{ + dom_exception exc; + + exc = dom_event_prevent_default(priv->evt); + if (exc != DOM_NO_ERR) return 0; + + return 0; +%} + +getter Event::defaultPrevented () +%{ + dom_exception exc; + bool ret; + + exc = dom_event_is_default_prevented(priv->evt, &ret); + if (exc != DOM_NO_ERR) return 0; + + duk_push_boolean(ctx, ret); + return 1; +%} + diff --git a/content/handlers/javascript/duktape/HTMLAnchorElement.bnd b/content/handlers/javascript/duktape/HTMLAnchorElement.bnd new file mode 100644 index 000000000..3dcfef72e --- /dev/null +++ b/content/handlers/javascript/duktape/HTMLAnchorElement.bnd @@ -0,0 +1,39 @@ +/* HTML anchor element binding using duktape and libdom + * + * Copyright 2015 Vincent Sanders + * + * This file is part of NetSurf, http://www.netsurf-browser.org/ + * + * Released under the terms of the MIT License, + * http://www.opensource.org/licenses/mit-license + */ + +init HTMLAnchorElement(struct dom_html_element *html_anchor_element::html_element); + +getter HTMLAnchorElement::charset(); +setter HTMLAnchorElement::charset(); + +getter HTMLAnchorElement::coords(); +setter HTMLAnchorElement::coords(); + +getter HTMLAnchorElement::hreflang(); +setter HTMLAnchorElement::hreflang(); + +getter HTMLAnchorElement::name(); +setter HTMLAnchorElement::name(); + +getter HTMLAnchorElement::rel(); +setter HTMLAnchorElement::rel(); + +getter HTMLAnchorElement::rev(); +setter HTMLAnchorElement::rev(); + +getter HTMLAnchorElement::shape(); +setter HTMLAnchorElement::shape(); + +getter HTMLAnchorElement::target(); +setter HTMLAnchorElement::target(); + + + + diff --git a/content/handlers/javascript/duktape/HTMLAppletElement.bnd b/content/handlers/javascript/duktape/HTMLAppletElement.bnd new file mode 100644 index 000000000..8bf3ff2f7 --- /dev/null +++ b/content/handlers/javascript/duktape/HTMLAppletElement.bnd @@ -0,0 +1,30 @@ +/* HTML applet element binding using duktape and libdom + * + * Copyright 2015 Vincent Sanders + * + * This file is part of NetSurf, http://www.netsurf-browser.org/ + * + * Released under the terms of the MIT License, + * http://www.opensource.org/licenses/mit-license + */ + +init HTMLAppletElement(struct dom_html_element *html_applet_element::html_element); + +getter HTMLAppletElement::align(); +setter HTMLAppletElement::align(); +getter HTMLAppletElement::alt(); +setter HTMLAppletElement::alt(); +getter HTMLAppletElement::archive(); +setter HTMLAppletElement::archive(); +getter HTMLAppletElement::codeBase(); +setter HTMLAppletElement::codeBase(); +getter HTMLAppletElement::code(); +setter HTMLAppletElement::code(); +getter HTMLAppletElement::height(); +setter HTMLAppletElement::height(); +getter HTMLAppletElement::name(); +setter HTMLAppletElement::name(); +getter HTMLAppletElement::object(); +setter HTMLAppletElement::object(); +getter HTMLAppletElement::width(); +setter HTMLAppletElement::width(); diff --git a/content/handlers/javascript/duktape/HTMLAreaElement.bnd b/content/handlers/javascript/duktape/HTMLAreaElement.bnd new file mode 100644 index 000000000..b6c17031c --- /dev/null +++ b/content/handlers/javascript/duktape/HTMLAreaElement.bnd @@ -0,0 +1,26 @@ +/* HTML area element binding using duktape and libdom + * + * Copyright 2015 Vincent Sanders + * + * This file is part of NetSurf, http://www.netsurf-browser.org/ + * + * Released under the terms of the MIT License, + * http://www.opensource.org/licenses/mit-license + */ + +init HTMLAreaElement(struct dom_html_element *html_area_element::html_element); + +getter HTMLAreaElement::alt(); +setter HTMLAreaElement::alt(); + +getter HTMLAreaElement::coords(); +setter HTMLAreaElement::coords(); + +getter HTMLAreaElement::noHref(); +setter HTMLAreaElement::noHref(); + +getter HTMLAreaElement::shape(); +setter HTMLAreaElement::shape(); + +getter HTMLAreaElement::target(); +setter HTMLAreaElement::target(); diff --git a/content/handlers/javascript/duktape/HTMLBRElement.bnd b/content/handlers/javascript/duktape/HTMLBRElement.bnd new file mode 100644 index 000000000..3b44b9777 --- /dev/null +++ b/content/handlers/javascript/duktape/HTMLBRElement.bnd @@ -0,0 +1,14 @@ +/* HTML br element binding using duktape and libdom + * + * Copyright 2015 Vincent Sanders + * + * This file is part of NetSurf, http://www.netsurf-browser.org/ + * + * Released under the terms of the MIT License, + * http://www.opensource.org/licenses/mit-license + */ + +init HTMLBRElement(struct dom_html_element *html_br_element::html_element); + +getter HTMLBRElement::clear(); +setter HTMLBRElement::clear(); diff --git a/content/handlers/javascript/duktape/HTMLBaseElement.bnd b/content/handlers/javascript/duktape/HTMLBaseElement.bnd new file mode 100644 index 000000000..143aefd36 --- /dev/null +++ b/content/handlers/javascript/duktape/HTMLBaseElement.bnd @@ -0,0 +1,17 @@ +/* HTML base element binding using duktape and libdom + * + * Copyright 2015 Vincent Sanders + * + * This file is part of NetSurf, http://www.netsurf-browser.org/ + * + * Released under the terms of the MIT License, + * http://www.opensource.org/licenses/mit-license + */ + +init HTMLBaseElement(struct dom_html_element *html_base_element::html_element); + +getter HTMLBaseElement::href(); +setter HTMLBaseElement::href(); + +getter HTMLBaseElement::target(); +setter HTMLBaseElement::target(); diff --git a/content/handlers/javascript/duktape/HTMLBodyElement.bnd b/content/handlers/javascript/duktape/HTMLBodyElement.bnd new file mode 100644 index 000000000..a283f897c --- /dev/null +++ b/content/handlers/javascript/duktape/HTMLBodyElement.bnd @@ -0,0 +1,24 @@ +/* HTML body element binding using duktape and libdom + * + * Copyright 2015 Vincent Sanders + * + * This file is part of NetSurf, http://www.netsurf-browser.org/ + * + * Released under the terms of the MIT License, + * http://www.opensource.org/licenses/mit-license + */ + +init HTMLBodyElement(struct dom_html_element *html_body_element::html_element); + +getter HTMLBodyElement::aLink(); +setter HTMLBodyElement::aLink(); +getter HTMLBodyElement::background(); +setter HTMLBodyElement::background(); +getter HTMLBodyElement::bgColor(); +setter HTMLBodyElement::bgColor(); +getter HTMLBodyElement::link(); +setter HTMLBodyElement::link(); +getter HTMLBodyElement::text(); +setter HTMLBodyElement::text(); +getter HTMLBodyElement::vLink(); +setter HTMLBodyElement::vLink(); diff --git a/content/handlers/javascript/duktape/HTMLButtonElement.bnd b/content/handlers/javascript/duktape/HTMLButtonElement.bnd new file mode 100644 index 000000000..53431aa04 --- /dev/null +++ b/content/handlers/javascript/duktape/HTMLButtonElement.bnd @@ -0,0 +1,18 @@ +/* HTML button element binding using duktape and libdom + * + * Copyright 2015 Vincent Sanders + * + * This file is part of NetSurf, http://www.netsurf-browser.org/ + * + * Released under the terms of the MIT License, + * http://www.opensource.org/licenses/mit-license + */ + +init HTMLButtonElement(struct dom_html_element *html_button_element::html_element); + +getter HTMLButtonElement::disabled(); +setter HTMLButtonElement::disabled(); +getter HTMLButtonElement::name(); +setter HTMLButtonElement::name(); +getter HTMLButtonElement::value(); +setter HTMLButtonElement::value(); diff --git a/content/handlers/javascript/duktape/HTMLCollection.bnd b/content/handlers/javascript/duktape/HTMLCollection.bnd new file mode 100644 index 000000000..2ffe7027b --- /dev/null +++ b/content/handlers/javascript/duktape/HTMLCollection.bnd @@ -0,0 +1,24 @@ +/* HTMLCollection binding for browser using duktape and libdom + * + * Copyright 2015 Vincent Sanders + * + * This file is part of NetSurf, http://www.netsurf-browser.org/ + * + * Released under the terms of the MIT License, + * http://www.opensource.org/licenses/mit-license + */ + +class HTMLCollection { + private struct dom_html_collection *coll; +}; + +init HTMLCollection(struct dom_html_collection *coll) +%{ + priv->coll = coll; + dom_html_collection_ref(coll); +%} + +fini HTMLCollection() +%{ + dom_html_collection_unref(priv->coll); +%} diff --git a/content/handlers/javascript/duktape/HTMLDivElement.bnd b/content/handlers/javascript/duktape/HTMLDivElement.bnd new file mode 100644 index 000000000..759e34d96 --- /dev/null +++ b/content/handlers/javascript/duktape/HTMLDivElement.bnd @@ -0,0 +1,14 @@ +/* HTML div element binding using duktape and libdom + * + * Copyright 2015 Michael Drake + * + * This file is part of NetSurf, http://www.netsurf-browser.org/ + * + * Released under the terms of the MIT License, + * http://www.opensource.org/licenses/mit-license + */ + +init HTMLDivElement(struct dom_html_element *html_div_element::html_element); + +getter HTMLDivElement::align(); +setter HTMLDivElement::align(); diff --git a/content/handlers/javascript/duktape/HTMLElement.bnd b/content/handlers/javascript/duktape/HTMLElement.bnd new file mode 100644 index 000000000..b3de9c8fe --- /dev/null +++ b/content/handlers/javascript/duktape/HTMLElement.bnd @@ -0,0 +1,162 @@ +/* HTML element binding using duktape and libdom + * + * Copyright 2015 Vincent Sanders + * + * This file is part of NetSurf, http://www.netsurf-browser.org/ + * + * Released under the terms of the MIT License, + * http://www.opensource.org/licenses/mit-license + */ + +prologue HTMLElement() +%{ +#include +#define HANDLER_MAGIC MAGIC(HANDLER_MAP) +%} + +init HTMLElement(struct dom_html_element *html_element::element); + +getter HTMLElement::dir(); +setter HTMLElement::dir(); + +getter HTMLElement::lang(); +setter HTMLElement::lang(); + +getter HTMLElement::title(); +setter HTMLElement::title(); + +getter HTMLElement::onchange(); +setter HTMLElement::onchange(); + +setter HTMLElement::onclick(); +getter HTMLElement::onclick(); + +getter HTMLElement::onabort(); +setter HTMLElement::onabort(); +getter HTMLElement::onautocompleteerror(); +setter HTMLElement::onautocompleteerror(); +getter HTMLElement::onautocomplete(); +setter HTMLElement::onautocomplete(); +getter HTMLElement::onblur(); +setter HTMLElement::onblur(); +getter HTMLElement::oncancel(); +setter HTMLElement::oncancel(); +getter HTMLElement::oncanplaythrough(); +setter HTMLElement::oncanplaythrough(); +getter HTMLElement::oncanplay(); +setter HTMLElement::oncanplay(); +getter HTMLElement::onclose(); +setter HTMLElement::onclose(); +getter HTMLElement::oncontextmenu(); +setter HTMLElement::oncontextmenu(); +getter HTMLElement::oncuechange(); +setter HTMLElement::oncuechange(); +getter HTMLElement::ondblclick(); +setter HTMLElement::ondblclick(); +getter HTMLElement::ondragend(); +setter HTMLElement::ondragend(); +getter HTMLElement::ondragenter(); +setter HTMLElement::ondragenter(); +getter HTMLElement::ondragexit(); +setter HTMLElement::ondragexit(); +getter HTMLElement::ondragleave(); +setter HTMLElement::ondragleave(); +getter HTMLElement::ondragover(); +setter HTMLElement::ondragover(); +getter HTMLElement::ondragstart(); +setter HTMLElement::ondragstart(); +getter HTMLElement::ondrag(); +setter HTMLElement::ondrag(); +getter HTMLElement::ondrop(); +setter HTMLElement::ondrop(); +getter HTMLElement::ondurationchange(); +setter HTMLElement::ondurationchange(); +getter HTMLElement::onemptied(); +setter HTMLElement::onemptied(); +getter HTMLElement::onended(); +setter HTMLElement::onended(); +getter HTMLElement::onfocus(); +setter HTMLElement::onfocus(); +getter HTMLElement::oninput(); +setter HTMLElement::oninput(); +getter HTMLElement::oninvalid(); +setter HTMLElement::oninvalid(); +getter HTMLElement::onkeydown(); +setter HTMLElement::onkeydown(); +getter HTMLElement::onkeypress(); +setter HTMLElement::onkeypress(); +getter HTMLElement::onkeyup(); +setter HTMLElement::onkeyup(); +getter HTMLElement::onloadeddata(); +setter HTMLElement::onloadeddata(); +getter HTMLElement::onloadedmetadata(); +setter HTMLElement::onloadedmetadata(); +getter HTMLElement::onloadstart(); +setter HTMLElement::onloadstart(); +getter HTMLElement::onload(); +setter HTMLElement::onload(); +getter HTMLElement::onmousedown(); +setter HTMLElement::onmousedown(); +getter HTMLElement::onmouseenter(); +setter HTMLElement::onmouseenter(); +getter HTMLElement::onmouseleave(); +setter HTMLElement::onmouseleave(); +getter HTMLElement::onmousemove(); +setter HTMLElement::onmousemove(); +getter HTMLElement::onmouseout(); +setter HTMLElement::onmouseout(); +getter HTMLElement::onmouseover(); +setter HTMLElement::onmouseover(); +getter HTMLElement::onmouseup(); +setter HTMLElement::onmouseup(); +getter HTMLElement::onpause(); +setter HTMLElement::onpause(); +getter HTMLElement::onplaying(); +setter HTMLElement::onplaying(); +getter HTMLElement::onplay(); +setter HTMLElement::onplay(); +getter HTMLElement::onprogress(); +setter HTMLElement::onprogress(); +getter HTMLElement::onratechange(); +setter HTMLElement::onratechange(); +getter HTMLElement::onreset(); +setter HTMLElement::onreset(); +getter HTMLElement::onresize(); +setter HTMLElement::onresize(); +getter HTMLElement::onscroll(); +setter HTMLElement::onscroll(); +getter HTMLElement::onseeked(); +setter HTMLElement::onseeked(); +getter HTMLElement::onseeking(); +setter HTMLElement::onseeking(); +getter HTMLElement::onselect(); +setter HTMLElement::onselect(); +getter HTMLElement::onshow(); +setter HTMLElement::onshow(); +getter HTMLElement::onsort(); +setter HTMLElement::onsort(); +getter HTMLElement::onstalled(); +setter HTMLElement::onstalled(); +getter HTMLElement::onsubmit(); +setter HTMLElement::onsubmit(); +getter HTMLElement::onsuspend(); +setter HTMLElement::onsuspend(); +getter HTMLElement::ontimeupdate(); +setter HTMLElement::ontimeupdate(); +getter HTMLElement::ontoggle(); +setter HTMLElement::ontoggle(); +getter HTMLElement::onvolumechange(); +setter HTMLElement::onvolumechange(); +getter HTMLElement::onwaiting(); +setter HTMLElement::onwaiting(); +getter HTMLElement::onwheel(); +setter HTMLElement::onwheel(); + +getter HTMLElement::style() +%{ + /* Minimal implementation to avoid infinite-loop in Modernizr (c.f. #2413) */ + if (dukky_create_object(ctx, PROTO_NAME(CSSSTYLEDECLARATION), 0) != DUK_EXEC_SUCCESS) { + return 0; + } + return 1; +%} diff --git a/content/handlers/javascript/duktape/HTMLFontElement.bnd b/content/handlers/javascript/duktape/HTMLFontElement.bnd new file mode 100644 index 000000000..e648a72e1 --- /dev/null +++ b/content/handlers/javascript/duktape/HTMLFontElement.bnd @@ -0,0 +1,20 @@ +/* HTML font element binding using duktape and libdom + * + * Copyright 2015 Vincent Sanders + * + * This file is part of NetSurf, http://www.netsurf-browser.org/ + * + * Released under the terms of the MIT License, + * http://www.opensource.org/licenses/mit-license + */ + +init HTMLFontElement(struct dom_html_element *html_font_element::html_element); + +getter HTMLFontElement::color(); +setter HTMLFontElement::color(); + +getter HTMLFontElement::face(); +setter HTMLFontElement::face(); + +getter HTMLFontElement::size(); +setter HTMLFontElement::size(); diff --git a/content/handlers/javascript/duktape/HTMLFormElement.bnd b/content/handlers/javascript/duktape/HTMLFormElement.bnd new file mode 100644 index 000000000..3906cf0b3 --- /dev/null +++ b/content/handlers/javascript/duktape/HTMLFormElement.bnd @@ -0,0 +1,26 @@ +/* HTML form element binding using duktape and libdom + * + * Copyright 2015 Vincent Sanders + * + * This file is part of NetSurf, http://www.netsurf-browser.org/ + * + * Released under the terms of the MIT License, + * http://www.opensource.org/licenses/mit-license + */ + +init HTMLFormElement(struct dom_html_element *html_form_element::html_element); + +getter HTMLFormElement::acceptCharset(); +setter HTMLFormElement::acceptCharset(); + +getter HTMLFormElement::action(); +setter HTMLFormElement::action(); + +getter HTMLFormElement::enctype(); +setter HTMLFormElement::enctype(); + +getter HTMLFormElement::method(); +setter HTMLFormElement::method(); + +getter HTMLFormElement::target(); +setter HTMLFormElement::target(); diff --git a/content/handlers/javascript/duktape/HTMLFrameElement.bnd b/content/handlers/javascript/duktape/HTMLFrameElement.bnd new file mode 100644 index 000000000..ee5cfe3d0 --- /dev/null +++ b/content/handlers/javascript/duktape/HTMLFrameElement.bnd @@ -0,0 +1,35 @@ +/* HTML frame element binding using duktape and libdom + * + * Copyright 2015 Vincent Sanders + * + * This file is part of NetSurf, http://www.netsurf-browser.org/ + * + * Released under the terms of the MIT License, + * http://www.opensource.org/licenses/mit-license + */ + +init HTMLFrameElement(struct dom_html_element *html_frame_element::html_element); + +getter HTMLFrameElement::frameBorder(); +setter HTMLFrameElement::frameBorder(); + +getter HTMLFrameElement::longDesc(); +setter HTMLFrameElement::longDesc(); + +getter HTMLFrameElement::marginHeight(); +setter HTMLFrameElement::marginHeight(); + +getter HTMLFrameElement::marginWidth(); +setter HTMLFrameElement::marginWidth(); + +getter HTMLFrameElement::name(); +setter HTMLFrameElement::name(); + +getter HTMLFrameElement::noResize(); +setter HTMLFrameElement::noResize(); + +getter HTMLFrameElement::scrolling(); +setter HTMLFrameElement::scrolling(); + +getter HTMLFrameElement::src(); +setter HTMLFrameElement::src(); diff --git a/content/handlers/javascript/duktape/HTMLFrameSetElement.bnd b/content/handlers/javascript/duktape/HTMLFrameSetElement.bnd new file mode 100644 index 000000000..cc66e93d8 --- /dev/null +++ b/content/handlers/javascript/duktape/HTMLFrameSetElement.bnd @@ -0,0 +1,17 @@ +/* HTML frame set element binding using duktape and libdom + * + * Copyright 2015 Vincent Sanders + * + * This file is part of NetSurf, http://www.netsurf-browser.org/ + * + * Released under the terms of the MIT License, + * http://www.opensource.org/licenses/mit-license + */ + +init HTMLFrameSetElement(struct dom_html_element *html_frame_set_element::html_element); + +getter HTMLFrameSetElement::cols(); +setter HTMLFrameSetElement::cols(); + +getter HTMLFrameSetElement::rows(); +setter HTMLFrameSetElement::rows(); diff --git a/content/handlers/javascript/duktape/HTMLHRElement.bnd b/content/handlers/javascript/duktape/HTMLHRElement.bnd new file mode 100644 index 000000000..421ec499b --- /dev/null +++ b/content/handlers/javascript/duktape/HTMLHRElement.bnd @@ -0,0 +1,24 @@ +/* HTML hr element binding using duktape and libdom + * + * Copyright 2015 Vincent Sanders + * + * This file is part of NetSurf, http://www.netsurf-browser.org/ + * + * Released under the terms of the MIT License, + * http://www.opensource.org/licenses/mit-license + */ + +init HTMLHRElement(struct dom_html_element *html_hr_element::html_element); + +getter HTMLHRElement::noShade(); +setter HTMLHRElement::noShade(); + +getter HTMLHRElement::align(); +setter HTMLHRElement::align(); + +getter HTMLHRElement::size(); +setter HTMLHRElement::size(); + +getter HTMLHRElement::width(); +setter HTMLHRElement::width(); + diff --git a/content/handlers/javascript/duktape/HTMLHTMLElement.bnd b/content/handlers/javascript/duktape/HTMLHTMLElement.bnd new file mode 100644 index 000000000..01697d860 --- /dev/null +++ b/content/handlers/javascript/duktape/HTMLHTMLElement.bnd @@ -0,0 +1,14 @@ +/* HTML html element binding using duktape and libdom + * + * Copyright 2015 Vincent Sanders + * + * This file is part of NetSurf, http://www.netsurf-browser.org/ + * + * Released under the terms of the MIT License, + * http://www.opensource.org/licenses/mit-license + */ + +init HTMLHtmlElement(struct dom_html_element *html_html_element::html_element); + +getter HTMLHtmlElement::version(); +setter HTMLHtmlElement::version(); diff --git a/content/handlers/javascript/duktape/HTMLHeadingElement.bnd b/content/handlers/javascript/duktape/HTMLHeadingElement.bnd new file mode 100644 index 000000000..be51223c1 --- /dev/null +++ b/content/handlers/javascript/duktape/HTMLHeadingElement.bnd @@ -0,0 +1,14 @@ +/* HTML heading element binding using duktape and libdom + * + * Copyright 2015 Vincent Sanders + * + * This file is part of NetSurf, http://www.netsurf-browser.org/ + * + * Released under the terms of the MIT License, + * http://www.opensource.org/licenses/mit-license + */ + +init HTMLHeadingElement(struct dom_html_element *html_heading_element::html_element); + +getter HTMLHeadingElement::align(); +setter HTMLHeadingElement::align(); diff --git a/content/handlers/javascript/duktape/HTMLIFrameElement.bnd b/content/handlers/javascript/duktape/HTMLIFrameElement.bnd new file mode 100644 index 000000000..64353769c --- /dev/null +++ b/content/handlers/javascript/duktape/HTMLIFrameElement.bnd @@ -0,0 +1,41 @@ +/* HTML I frame element binding using duktape and libdom + * + * Copyright 2015 Vincent Sanders + * + * This file is part of NetSurf, http://www.netsurf-browser.org/ + * + * Released under the terms of the MIT License, + * http://www.opensource.org/licenses/mit-license + */ + +init HTMLIFrameElement(struct dom_html_element *html_iframe_element::html_element); + +getter HTMLIFrameElement::align(); +setter HTMLIFrameElement::align(); + +getter HTMLIFrameElement::frameBorder(); +setter HTMLIFrameElement::frameBorder(); + +getter HTMLIFrameElement::height(); +setter HTMLIFrameElement::height(); + +getter HTMLIFrameElement::longDesc(); +setter HTMLIFrameElement::longDesc(); + +getter HTMLIFrameElement::marginHeight(); +setter HTMLIFrameElement::marginHeight(); + +getter HTMLIFrameElement::marginWidth(); +setter HTMLIFrameElement::marginWidth(); + +getter HTMLIFrameElement::name(); +setter HTMLIFrameElement::name(); + +getter HTMLIFrameElement::scrolling(); +setter HTMLIFrameElement::scrolling(); + +getter HTMLIFrameElement::src(); +setter HTMLIFrameElement::src(); + +getter HTMLIFrameElement::width(); +setter HTMLIFrameElement::width(); diff --git a/content/handlers/javascript/duktape/HTMLImageElement.bnd b/content/handlers/javascript/duktape/HTMLImageElement.bnd new file mode 100644 index 000000000..96b35b6f8 --- /dev/null +++ b/content/handlers/javascript/duktape/HTMLImageElement.bnd @@ -0,0 +1,47 @@ +/* HTML image element binding using duktape and libdom + * + * Copyright 2015 Vincent Sanders + * + * This file is part of NetSurf, http://www.netsurf-browser.org/ + * + * Released under the terms of the MIT License, + * http://www.opensource.org/licenses/mit-license + */ + +init HTMLImageElement(struct dom_html_element *html_image_element::html_element); + +getter HTMLImageElement::align(); +setter HTMLImageElement::align(); + +getter HTMLImageElement::alt(); +setter HTMLImageElement::alt(); + +getter HTMLImageElement::border(); +setter HTMLImageElement::border(); + +getter HTMLImageElement::isMap(); +setter HTMLImageElement::isMap(); + +getter HTMLImageElement::longDesc(); +setter HTMLImageElement::longDesc(); + +getter HTMLImageElement::name(); +setter HTMLImageElement::name(); + +getter HTMLImageElement::src(); +setter HTMLImageElement::src(); + +getter HTMLImageElement::useMap(); +setter HTMLImageElement::useMap(); + +getter HTMLImageElement::height(); +setter HTMLImageElement::height(); + +getter HTMLImageElement::hspace(); +setter HTMLImageElement::hspace(); + +getter HTMLImageElement::vspace(); +setter HTMLImageElement::vspace(); + +getter HTMLImageElement::width(); +setter HTMLImageElement::width(); diff --git a/content/handlers/javascript/duktape/HTMLInputElement.bnd b/content/handlers/javascript/duktape/HTMLInputElement.bnd new file mode 100644 index 000000000..23645d0cd --- /dev/null +++ b/content/handlers/javascript/duktape/HTMLInputElement.bnd @@ -0,0 +1,64 @@ +/* HTML input element binding using duktape and libdom + * + * Copyright 2015 Vincent Sanders + * + * This file is part of NetSurf, http://www.netsurf-browser.org/ + * + * Released under the terms of the MIT License, + * http://www.opensource.org/licenses/mit-license + */ + +init HTMLInputElement(struct dom_html_element *html_input_element::html_element); + +getter HTMLInputElement::accept(); +setter HTMLInputElement::accept(); + +getter HTMLInputElement::align(); +setter HTMLInputElement::align(); + +getter HTMLInputElement::alt(); +setter HTMLInputElement::alt(); + +getter HTMLInputElement::checked(); +setter HTMLInputElement::checked(); + +getter HTMLInputElement::defaultChecked(); +setter HTMLInputElement::defaultChecked(); + +getter HTMLInputElement::defaultValue(); +setter HTMLInputElement::defaultValue(); + +getter HTMLInputElement::disabled(); +setter HTMLInputElement::disabled(); + +getter HTMLInputElement::name(); +setter HTMLInputElement::name(); + +getter HTMLInputElement::readOnly(); +setter HTMLInputElement::readOnly(); + +getter HTMLInputElement::src(); +setter HTMLInputElement::src(); + +getter HTMLInputElement::useMap(); +setter HTMLInputElement::useMap(); + +getter HTMLInputElement::valueAsNumber(); +setter HTMLInputElement::valueAsNumber(); + +getter HTMLInputElement::valueHigh(); +setter HTMLInputElement::valueHigh(); + +getter HTMLInputElement::valueLow(); +setter HTMLInputElement::valueLow(); + +getter HTMLInputElement::value(); +setter HTMLInputElement::value(); + +getter HTMLInputElement::maxLength(); +setter HTMLInputElement::maxLength(); + +getter HTMLInputElement::size(); +setter HTMLInputElement::size(); + +getter HTMLInputElement::type(); diff --git a/content/handlers/javascript/duktape/HTMLLIElement.bnd b/content/handlers/javascript/duktape/HTMLLIElement.bnd new file mode 100644 index 000000000..a585693c0 --- /dev/null +++ b/content/handlers/javascript/duktape/HTMLLIElement.bnd @@ -0,0 +1,17 @@ +/* HTML li element binding using duktape and libdom + * + * Copyright 2015 Vincent Sanders + * + * This file is part of NetSurf, http://www.netsurf-browser.org/ + * + * Released under the terms of the MIT License, + * http://www.opensource.org/licenses/mit-license + */ + +init HTMLLIElement(struct dom_html_element *html_li_element::html_element); + +getter HTMLLIElement::type(); +setter HTMLLIElement::type(); + +getter HTMLLIElement::value(); +setter HTMLLIElement::value(); diff --git a/content/handlers/javascript/duktape/HTMLLabelElement.bnd b/content/handlers/javascript/duktape/HTMLLabelElement.bnd new file mode 100644 index 000000000..018f798bd --- /dev/null +++ b/content/handlers/javascript/duktape/HTMLLabelElement.bnd @@ -0,0 +1,14 @@ +/* HTML label element binding using duktape and libdom + * + * Copyright 2015 Vincent Sanders + * + * This file is part of NetSurf, http://www.netsurf-browser.org/ + * + * Released under the terms of the MIT License, + * http://www.opensource.org/licenses/mit-license + */ + +init HTMLLabelElement(struct dom_html_element *html_label_element::html_element); + +getter HTMLLabelElement::htmlFor(); +setter HTMLLabelElement::htmlFor(); diff --git a/content/handlers/javascript/duktape/HTMLLegendElement.bnd b/content/handlers/javascript/duktape/HTMLLegendElement.bnd new file mode 100644 index 000000000..1bb95a94a --- /dev/null +++ b/content/handlers/javascript/duktape/HTMLLegendElement.bnd @@ -0,0 +1,14 @@ +/* HTML legend element binding using duktape and libdom + * + * Copyright 2015 Vincent Sanders + * + * This file is part of NetSurf, http://www.netsurf-browser.org/ + * + * Released under the terms of the MIT License, + * http://www.opensource.org/licenses/mit-license + */ + +init HTMLLegendElement(struct dom_html_element *html_legend_element::html_element); + +getter HTMLLegendElement::align(); +setter HTMLLegendElement::align(); diff --git a/content/handlers/javascript/duktape/HTMLLinkElement.bnd b/content/handlers/javascript/duktape/HTMLLinkElement.bnd new file mode 100644 index 000000000..b215d76c0 --- /dev/null +++ b/content/handlers/javascript/duktape/HTMLLinkElement.bnd @@ -0,0 +1,35 @@ +/* HTML link element binding using duktape and libdom + * + * Copyright 2015 Vincent Sanders + * + * This file is part of NetSurf, http://www.netsurf-browser.org/ + * + * Released under the terms of the MIT License, + * http://www.opensource.org/licenses/mit-license + */ + +init HTMLLinkElement(struct dom_html_element *html_link_element::html_element); + +getter HTMLLinkElement::charset(); +setter HTMLLinkElement::charset(); + +getter HTMLLinkElement::hreflang(); +setter HTMLLinkElement::hreflang(); + +getter HTMLLinkElement::href(); +setter HTMLLinkElement::href(); + +getter HTMLLinkElement::media(); +setter HTMLLinkElement::media(); + +getter HTMLLinkElement::rel(); +setter HTMLLinkElement::rel(); + +getter HTMLLinkElement::rev(); +setter HTMLLinkElement::rev(); + +getter HTMLLinkElement::target(); +setter HTMLLinkElement::target(); + +getter HTMLLinkElement::type(); +setter HTMLLinkElement::type(); diff --git a/content/handlers/javascript/duktape/HTMLMapElement.bnd b/content/handlers/javascript/duktape/HTMLMapElement.bnd new file mode 100644 index 000000000..0603f6f81 --- /dev/null +++ b/content/handlers/javascript/duktape/HTMLMapElement.bnd @@ -0,0 +1,14 @@ +/* HTML map element binding using duktape and libdom + * + * Copyright 2015 Vincent Sanders + * + * This file is part of NetSurf, http://www.netsurf-browser.org/ + * + * Released under the terms of the MIT License, + * http://www.opensource.org/licenses/mit-license + */ + +init HTMLMapElement(struct dom_html_element *html_map_element::html_element); + +getter HTMLMapElement::name(); +setter HTMLMapElement::name(); diff --git a/content/handlers/javascript/duktape/HTMLMarqueeElement.bnd b/content/handlers/javascript/duktape/HTMLMarqueeElement.bnd new file mode 100644 index 000000000..16fbdc82c --- /dev/null +++ b/content/handlers/javascript/duktape/HTMLMarqueeElement.bnd @@ -0,0 +1,11 @@ +/* HTML marquee element binding using duktape and libdom + * + * Copyright 2015 Vincent Sanders + * + * This file is part of NetSurf, http://www.netsurf-browser.org/ + * + * Released under the terms of the MIT License, + * http://www.opensource.org/licenses/mit-license + */ + +init HTMLMarqueeElement(struct dom_html_element *html_marquee_element::html_element); diff --git a/content/handlers/javascript/duktape/HTMLMenuElement.bnd b/content/handlers/javascript/duktape/HTMLMenuElement.bnd new file mode 100644 index 000000000..c7097b706 --- /dev/null +++ b/content/handlers/javascript/duktape/HTMLMenuElement.bnd @@ -0,0 +1,14 @@ +/* HTML menu element binding using duktape and libdom + * + * Copyright 2015 Vincent Sanders + * + * This file is part of NetSurf, http://www.netsurf-browser.org/ + * + * Released under the terms of the MIT License, + * http://www.opensource.org/licenses/mit-license + */ + +init HTMLMenuElement(struct dom_html_element *html_menu_element::html_element); + +getter HTMLMenuElement::compact(); +setter HTMLMenuElement::compact(); diff --git a/content/handlers/javascript/duktape/HTMLMetaElement.bnd b/content/handlers/javascript/duktape/HTMLMetaElement.bnd new file mode 100644 index 000000000..f9ecd4b07 --- /dev/null +++ b/content/handlers/javascript/duktape/HTMLMetaElement.bnd @@ -0,0 +1,23 @@ +/* HTML meta element binding using duktape and libdom + * + * Copyright 2015 Vincent Sanders + * + * This file is part of NetSurf, http://www.netsurf-browser.org/ + * + * Released under the terms of the MIT License, + * http://www.opensource.org/licenses/mit-license + */ + +init HTMLMetaElement(struct dom_html_element *html_meta_element::html_element); + +getter HTMLMetaElement::content(); +setter HTMLMetaElement::content(); + +getter HTMLMetaElement::httpEquiv(); +setter HTMLMetaElement::httpEquiv(); + +getter HTMLMetaElement::name(); +setter HTMLMetaElement::name(); + +getter HTMLMetaElement::scheme(); +setter HTMLMetaElement::scheme(); diff --git a/content/handlers/javascript/duktape/HTMLOListElement.bnd b/content/handlers/javascript/duktape/HTMLOListElement.bnd new file mode 100644 index 000000000..8c12712a9 --- /dev/null +++ b/content/handlers/javascript/duktape/HTMLOListElement.bnd @@ -0,0 +1,18 @@ +/* HTML ol element binding using duktape and libdom + * + * Copyright 2015 Vincent Sanders + * + * This file is part of NetSurf, http://www.netsurf-browser.org/ + * + * Released under the terms of the MIT License, + * http://www.opensource.org/licenses/mit-license + */ + +init HTMLOListElement(struct dom_html_element *html_o_list_element::html_element); + +getter HTMLOListElement::compact(); +setter HTMLOListElement::compact(); +getter HTMLOListElement::start(); +setter HTMLOListElement::start(); +getter HTMLOListElement::type(); +setter HTMLOListElement::type(); diff --git a/content/handlers/javascript/duktape/HTMLObjectElement.bnd b/content/handlers/javascript/duktape/HTMLObjectElement.bnd new file mode 100644 index 000000000..2d07a7bb2 --- /dev/null +++ b/content/handlers/javascript/duktape/HTMLObjectElement.bnd @@ -0,0 +1,54 @@ +/* HTML object element binding using duktape and libdom + * + * Copyright 2015 Vincent Sanders + * + * This file is part of NetSurf, http://www.netsurf-browser.org/ + * + * Released under the terms of the MIT License, + * http://www.opensource.org/licenses/mit-license + */ + +init HTMLObjectElement(struct dom_html_element *html_object_element::html_element); + +getter HTMLObjectElement::align(); +setter HTMLObjectElement::align(); + +getter HTMLObjectElement::archive(); +setter HTMLObjectElement::archive(); + +getter HTMLObjectElement::border(); +setter HTMLObjectElement::border(); + +getter HTMLObjectElement::codeBase(); +setter HTMLObjectElement::codeBase(); + +getter HTMLObjectElement::code(); +setter HTMLObjectElement::code(); + +getter HTMLObjectElement::codeType(); +setter HTMLObjectElement::codeType(); + +getter HTMLObjectElement::data(); +setter HTMLObjectElement::data(); + +getter HTMLObjectElement::declare(); +setter HTMLObjectElement::declare(); + +getter HTMLObjectElement::height(); +setter HTMLObjectElement::height(); + +getter HTMLObjectElement::name(); +setter HTMLObjectElement::name(); + +getter HTMLObjectElement::standby(); +setter HTMLObjectElement::standby(); + +getter HTMLObjectElement::type(); +setter HTMLObjectElement::type(); + +getter HTMLObjectElement::useMap(); +setter HTMLObjectElement::useMap(); + +getter HTMLObjectElement::width(); +setter HTMLObjectElement::width(); + diff --git a/content/handlers/javascript/duktape/HTMLOptionElement.bnd b/content/handlers/javascript/duktape/HTMLOptionElement.bnd new file mode 100644 index 000000000..d5094b7fa --- /dev/null +++ b/content/handlers/javascript/duktape/HTMLOptionElement.bnd @@ -0,0 +1,28 @@ +/* HTML option element binding using duktape and libdom + * + * Copyright 2015 Vincent Sanders + * + * This file is part of NetSurf, http://www.netsurf-browser.org/ + * + * Released under the terms of the MIT License, + * http://www.opensource.org/licenses/mit-license + */ + +init HTMLOptionElement(struct dom_html_element *html_option_element::html_element); + +getter HTMLOptionElement::defaultSelected(); +setter HTMLOptionElement::defaultSelected(); + +getter HTMLOptionElement::disabled(); +setter HTMLOptionElement::disabled(); + +getter HTMLOptionElement::label(); +setter HTMLOptionElement::label(); + +getter HTMLOptionElement::selected(); +setter HTMLOptionElement::selected(); + +getter HTMLOptionElement::text(); + +getter HTMLOptionElement::value(); +setter HTMLOptionElement::value(); diff --git a/content/handlers/javascript/duktape/HTMLParagraphElement.bnd b/content/handlers/javascript/duktape/HTMLParagraphElement.bnd new file mode 100644 index 000000000..cc9ad83b5 --- /dev/null +++ b/content/handlers/javascript/duktape/HTMLParagraphElement.bnd @@ -0,0 +1,14 @@ +/* HTML paragraph element binding using duktape and libdom + * + * Copyright 2015 Vincent Sanders + * + * This file is part of NetSurf, http://www.netsurf-browser.org/ + * + * Released under the terms of the MIT License, + * http://www.opensource.org/licenses/mit-license + */ + +init HTMLParagraphElement(struct dom_html_element *html_paragraph_element::html_element); + +getter HTMLParagraphElement::align(); +setter HTMLParagraphElement::align(); diff --git a/content/handlers/javascript/duktape/HTMLParamElement.bnd b/content/handlers/javascript/duktape/HTMLParamElement.bnd new file mode 100644 index 000000000..8fbe6fca6 --- /dev/null +++ b/content/handlers/javascript/duktape/HTMLParamElement.bnd @@ -0,0 +1,23 @@ +/* HTML param element binding using duktape and libdom + * + * Copyright 2015 Vincent Sanders + * + * This file is part of NetSurf, http://www.netsurf-browser.org/ + * + * Released under the terms of the MIT License, + * http://www.opensource.org/licenses/mit-license + */ + +init HTMLParamElement(struct dom_html_element *html_param_element::html_element); + +getter HTMLParamElement::name(); +setter HTMLParamElement::name(); + +getter HTMLParamElement::type(); +setter HTMLParamElement::type(); + +getter HTMLParamElement::value(); +setter HTMLParamElement::value(); + +getter HTMLParamElement::valueType(); +setter HTMLParamElement::valueType(); diff --git a/content/handlers/javascript/duktape/HTMLPreElement.bnd b/content/handlers/javascript/duktape/HTMLPreElement.bnd new file mode 100644 index 000000000..06f6a76a9 --- /dev/null +++ b/content/handlers/javascript/duktape/HTMLPreElement.bnd @@ -0,0 +1,15 @@ +/* HTML li element binding using duktape and libdom + * + * Copyright 2015 Vincent Sanders + * + * This file is part of NetSurf, http://www.netsurf-browser.org/ + * + * Released under the terms of the MIT License, + * http://www.opensource.org/licenses/mit-license + */ + +init HTMLPreElement(struct dom_html_element *html_pre_element::html_element); + +getter HTMLPreElement::width(); +setter HTMLPreElement::width(); + diff --git a/content/handlers/javascript/duktape/HTMLQuoteElement.bnd b/content/handlers/javascript/duktape/HTMLQuoteElement.bnd new file mode 100644 index 000000000..9e62f5d78 --- /dev/null +++ b/content/handlers/javascript/duktape/HTMLQuoteElement.bnd @@ -0,0 +1,14 @@ +/* HTML quote element binding using duktape and libdom + * + * Copyright 2015 Vincent Sanders + * + * This file is part of NetSurf, http://www.netsurf-browser.org/ + * + * Released under the terms of the MIT License, + * http://www.opensource.org/licenses/mit-license + */ + +init HTMLQuoteElement(struct dom_html_element *html_quote_element::html_element); + +getter HTMLQuoteElement::cite(); +setter HTMLQuoteElement::cite(); diff --git a/content/handlers/javascript/duktape/HTMLScriptElement.bnd b/content/handlers/javascript/duktape/HTMLScriptElement.bnd new file mode 100644 index 000000000..b3b22665a --- /dev/null +++ b/content/handlers/javascript/duktape/HTMLScriptElement.bnd @@ -0,0 +1,32 @@ +/* HTML script element binding using duktape and libdom + * + * Copyright 2015 Vincent Sanders + * + * This file is part of NetSurf, http://www.netsurf-browser.org/ + * + * Released under the terms of the MIT License, + * http://www.opensource.org/licenses/mit-license + */ + +init HTMLScriptElement(struct dom_html_element *html_script_element::html_element); + +getter HTMLScriptElement::charset(); +setter HTMLScriptElement::charset(); + +getter HTMLScriptElement::defer(); +setter HTMLScriptElement::defer(); + +getter HTMLScriptElement::event(); +setter HTMLScriptElement::event(); + +getter HTMLScriptElement::htmlFor(); +setter HTMLScriptElement::htmlFor(); + +getter HTMLScriptElement::src(); +setter HTMLScriptElement::src(); + +getter HTMLScriptElement::text(); +setter HTMLScriptElement::text(); + +getter HTMLScriptElement::type(); +setter HTMLScriptElement::type(); diff --git a/content/handlers/javascript/duktape/HTMLSelectElement.bnd b/content/handlers/javascript/duktape/HTMLSelectElement.bnd new file mode 100644 index 000000000..36a5d1da4 --- /dev/null +++ b/content/handlers/javascript/duktape/HTMLSelectElement.bnd @@ -0,0 +1,26 @@ +/* HTML select element binding using duktape and libdom + * + * Copyright 2015 Vincent Sanders + * + * This file is part of NetSurf, http://www.netsurf-browser.org/ + * + * Released under the terms of the MIT License, + * http://www.opensource.org/licenses/mit-license + */ + +init HTMLSelectElement(struct dom_html_element *html_select_element::html_element); + +getter HTMLSelectElement::disabled(); +setter HTMLSelectElement::disabled(); + +getter HTMLSelectElement::multiple(); +setter HTMLSelectElement::multiple(); + +getter HTMLSelectElement::name(); +setter HTMLSelectElement::name(); + +getter HTMLSelectElement::type(); + +getter HTMLSelectElement::value(); +setter HTMLSelectElement::value(); + diff --git a/content/handlers/javascript/duktape/HTMLStyleElement.bnd b/content/handlers/javascript/duktape/HTMLStyleElement.bnd new file mode 100644 index 000000000..45100876f --- /dev/null +++ b/content/handlers/javascript/duktape/HTMLStyleElement.bnd @@ -0,0 +1,17 @@ +/* HTML style element binding using duktape and libdom + * + * Copyright 2015 Vincent Sanders + * + * This file is part of NetSurf, http://www.netsurf-browser.org/ + * + * Released under the terms of the MIT License, + * http://www.opensource.org/licenses/mit-license + */ + +init HTMLStyleElement(struct dom_html_element *html_style_element::html_element); + +getter HTMLStyleElement::media(); +setter HTMLStyleElement::media(); + +getter HTMLStyleElement::type(); +setter HTMLStyleElement::type(); diff --git a/content/handlers/javascript/duktape/HTMLTableCaptionElement.bnd b/content/handlers/javascript/duktape/HTMLTableCaptionElement.bnd new file mode 100644 index 000000000..75754ccac --- /dev/null +++ b/content/handlers/javascript/duktape/HTMLTableCaptionElement.bnd @@ -0,0 +1,14 @@ +/* HTML table caption element binding using duktape and libdom + * + * Copyright 2015 Vincent Sanders + * + * This file is part of NetSurf, http://www.netsurf-browser.org/ + * + * Released under the terms of the MIT License, + * http://www.opensource.org/licenses/mit-license + */ + +init HTMLTableCaptionElement(struct dom_html_element *html_table_caption_element::html_element); + +getter HTMLTableCaptionElement::align(); +setter HTMLTableCaptionElement::align(); diff --git a/content/handlers/javascript/duktape/HTMLTableCellElement.bnd b/content/handlers/javascript/duktape/HTMLTableCellElement.bnd new file mode 100644 index 000000000..7040344c3 --- /dev/null +++ b/content/handlers/javascript/duktape/HTMLTableCellElement.bnd @@ -0,0 +1,46 @@ +/* HTML table cell element binding using duktape and libdom + * + * Copyright 2015 Vincent Sanders + * + * This file is part of NetSurf, http://www.netsurf-browser.org/ + * + * Released under the terms of the MIT License, + * http://www.opensource.org/licenses/mit-license + */ + +init HTMLTableCellElement(struct dom_html_element *html_table_cell_element::html_element); + +getter HTMLTableCellElement::align(); +setter HTMLTableCellElement::align(); + +getter HTMLTableCellElement::axis(); +setter HTMLTableCellElement::axis(); + +getter HTMLTableCellElement::bgColor(); +setter HTMLTableCellElement::bgColor(); + +getter HTMLTableCellElement::chOff(); +setter HTMLTableCellElement::chOff(); + +getter HTMLTableCellElement::ch(); +setter HTMLTableCellElement::ch(); + +getter HTMLTableCellElement::height(); +setter HTMLTableCellElement::height(); + +getter HTMLTableCellElement::noWrap(); +setter HTMLTableCellElement::noWrap(); + +getter HTMLTableCellElement::vAlign(); +setter HTMLTableCellElement::vAlign(); + +getter HTMLTableCellElement::width(); +setter HTMLTableCellElement::width(); + +getter HTMLTableCellElement::cellIndex(); + +getter HTMLTableCellElement::colSpan(); +setter HTMLTableCellElement::colSpan(); + +getter HTMLTableCellElement::rowSpan(); +setter HTMLTableCellElement::rowSpan(); diff --git a/content/handlers/javascript/duktape/HTMLTableColElement.bnd b/content/handlers/javascript/duktape/HTMLTableColElement.bnd new file mode 100644 index 000000000..ec7a954de --- /dev/null +++ b/content/handlers/javascript/duktape/HTMLTableColElement.bnd @@ -0,0 +1,26 @@ +/* HTML table col element binding using duktape and libdom + * + * Copyright 2015 Vincent Sanders + * + * This file is part of NetSurf, http://www.netsurf-browser.org/ + * + * Released under the terms of the MIT License, + * http://www.opensource.org/licenses/mit-license + */ + +init HTMLTableColElement(struct dom_html_element *html_table_col_element::html_element); + +getter HTMLTableColElement::align(); +setter HTMLTableColElement::align(); + +getter HTMLTableColElement::chOff(); +setter HTMLTableColElement::chOff(); + +getter HTMLTableColElement::ch(); +setter HTMLTableColElement::ch(); + +getter HTMLTableColElement::vAlign(); +setter HTMLTableColElement::vAlign(); + +getter HTMLTableColElement::width(); +setter HTMLTableColElement::width(); diff --git a/content/handlers/javascript/duktape/HTMLTableElement.bnd b/content/handlers/javascript/duktape/HTMLTableElement.bnd new file mode 100644 index 000000000..cd6d35769 --- /dev/null +++ b/content/handlers/javascript/duktape/HTMLTableElement.bnd @@ -0,0 +1,38 @@ +/* HTML table element binding using duktape and libdom + * + * Copyright 2015 Vincent Sanders + * + * This file is part of NetSurf, http://www.netsurf-browser.org/ + * + * Released under the terms of the MIT License, + * http://www.opensource.org/licenses/mit-license + */ + +init HTMLTableElement(struct dom_html_element *html_table_element::html_element); + +getter HTMLTableElement::align(); +setter HTMLTableElement::align(); + +getter HTMLTableElement::bgColor(); +setter HTMLTableElement::bgColor(); + +getter HTMLTableElement::border(); +setter HTMLTableElement::border(); + +getter HTMLTableElement::cellPadding(); +setter HTMLTableElement::cellPadding(); + +getter HTMLTableElement::cellSpacing(); +setter HTMLTableElement::cellSpacing(); + +getter HTMLTableElement::frame(); +setter HTMLTableElement::frame(); + +getter HTMLTableElement::rules(); +setter HTMLTableElement::rules(); + +getter HTMLTableElement::summary(); +setter HTMLTableElement::summary(); + +getter HTMLTableElement::width(); +setter HTMLTableElement::width(); diff --git a/content/handlers/javascript/duktape/HTMLTableRowElement.bnd b/content/handlers/javascript/duktape/HTMLTableRowElement.bnd new file mode 100644 index 000000000..f736817b0 --- /dev/null +++ b/content/handlers/javascript/duktape/HTMLTableRowElement.bnd @@ -0,0 +1,30 @@ +/* HTML table row element binding using duktape and libdom + * + * Copyright 2015 Vincent Sanders + * + * This file is part of NetSurf, http://www.netsurf-browser.org/ + * + * Released under the terms of the MIT License, + * http://www.opensource.org/licenses/mit-license + */ + +init HTMLTableRowElement(struct dom_html_element *html_table_row_element::html_element); + +getter HTMLTableRowElement::align(); +setter HTMLTableRowElement::align(); + +getter HTMLTableRowElement::bgColor(); +setter HTMLTableRowElement::bgColor(); + +getter HTMLTableRowElement::chOff(); +setter HTMLTableRowElement::chOff(); + +getter HTMLTableRowElement::ch(); +setter HTMLTableRowElement::ch(); + +getter HTMLTableRowElement::vAlign(); +setter HTMLTableRowElement::vAlign(); + +getter HTMLTableRowElement::rowIndex(); + +getter HTMLTableRowElement::sectionRowIndex(); diff --git a/content/handlers/javascript/duktape/HTMLTableSectionElement.bnd b/content/handlers/javascript/duktape/HTMLTableSectionElement.bnd new file mode 100644 index 000000000..276533b3b --- /dev/null +++ b/content/handlers/javascript/duktape/HTMLTableSectionElement.bnd @@ -0,0 +1,23 @@ +/* HTML table section element binding using duktape and libdom + * + * Copyright 2015 Vincent Sanders + * + * This file is part of NetSurf, http://www.netsurf-browser.org/ + * + * Released under the terms of the MIT License, + * http://www.opensource.org/licenses/mit-license + */ + +init HTMLTableSectionElement(struct dom_html_element *html_table_section_element::html_element); + +getter HTMLTableSectionElement::align(); +setter HTMLTableSectionElement::align(); + +getter HTMLTableSectionElement::chOff(); +setter HTMLTableSectionElement::chOff(); + +getter HTMLTableSectionElement::ch(); +setter HTMLTableSectionElement::ch(); + +getter HTMLTableSectionElement::vAlign(); +setter HTMLTableSectionElement::vAlign(); diff --git a/content/handlers/javascript/duktape/HTMLTextAreaElement.bnd b/content/handlers/javascript/duktape/HTMLTextAreaElement.bnd new file mode 100644 index 000000000..a0fc1bf7b --- /dev/null +++ b/content/handlers/javascript/duktape/HTMLTextAreaElement.bnd @@ -0,0 +1,30 @@ +/* HTML text area element binding using duktape and libdom + * + * Copyright 2015 Vincent Sanders + * + * This file is part of NetSurf, http://www.netsurf-browser.org/ + * + * Released under the terms of the MIT License, + * http://www.opensource.org/licenses/mit-license + */ + +init HTMLTextAreaElement(struct dom_html_element *html_text_area_element::html_element); + +getter HTMLTextAreaElement::defaultValue(); +setter HTMLTextAreaElement::defaultValue(); + +getter HTMLTextAreaElement::disabled(); +setter HTMLTextAreaElement::disabled(); + +getter HTMLTextAreaElement::name(); +setter HTMLTextAreaElement::name(); + +getter HTMLTextAreaElement::readOnly(); +setter HTMLTextAreaElement::readOnly(); + +getter HTMLTextAreaElement::type(); + +getter HTMLTextAreaElement::value(); +setter HTMLTextAreaElement::value(); + + diff --git a/content/handlers/javascript/duktape/HTMLTitleElement.bnd b/content/handlers/javascript/duktape/HTMLTitleElement.bnd new file mode 100644 index 000000000..dee1c0749 --- /dev/null +++ b/content/handlers/javascript/duktape/HTMLTitleElement.bnd @@ -0,0 +1,14 @@ +/* HTML title element binding using duktape and libdom + * + * Copyright 2015 Vincent Sanders + * + * This file is part of NetSurf, http://www.netsurf-browser.org/ + * + * Released under the terms of the MIT License, + * http://www.opensource.org/licenses/mit-license + */ + +init HTMLTitleElement(struct dom_html_element *html_title_element::html_element); + +getter HTMLTitleElement::text(); +setter HTMLTitleElement::text(); diff --git a/content/handlers/javascript/duktape/Location.bnd b/content/handlers/javascript/duktape/Location.bnd new file mode 100644 index 000000000..ca7e90509 --- /dev/null +++ b/content/handlers/javascript/duktape/Location.bnd @@ -0,0 +1,353 @@ +/* Location binding for browser using duktape and libdom + * + * Copyright 2015 Vincent Sanders + * Copyright 2015 Daniel Silverstone + * + * This file is part of NetSurf, http://www.netsurf-browser.org/ + * + * Released under the terms of the MIT License, + * http://www.opensource.org/licenses/mit-license + */ + +class Location { + private nsurl *url; +}; + +prologue Location() +%{ +#include "netsurf/browser_window.h" +%} + +init Location(nsurl *url) +%{ + priv->url = url; + nsurl_ref(url); +%} + +fini Location() +%{ + nsurl_unref(priv->url); +%} + +method Location::reload() +%{ + /* retrieve the private data from the root object (window) */ + duk_push_global_object(ctx); + duk_get_prop_string(ctx, -1, PRIVATE_MAGIC); + window_private_t *priv_win = duk_get_pointer(ctx, -1); + duk_pop(ctx); + + if (priv_win->win != NULL) { + browser_window_reload(priv_win->win, false); + } else { + LOG("failed to get browser context"); + } + return 0; +%} + +method Location::assign() +%{ + /* retrieve the private data from the root object (window) */ + duk_push_global_object(ctx); + duk_get_prop_string(ctx, -1, PRIVATE_MAGIC); + window_private_t *priv_win = duk_get_pointer(ctx, -1); + duk_pop(ctx); + + if (priv_win == NULL || priv_win->win == NULL) { + LOG("failed to get browser context"); + return 0; + } + + nsurl *joined; + duk_size_t slen; + const char *url = duk_safe_to_lstring(ctx, 0, &slen); + + nsurl_join(priv->url, url, &joined); + browser_window_navigate(priv_win->win, + joined, + NULL, + BW_NAVIGATE_HISTORY, + NULL, + NULL, + NULL); + nsurl_unref(joined); + return 0; +%} + +method Location::replace() +%{ + /* retrieve the private data from the root object (window) */ + duk_push_global_object(ctx); + duk_get_prop_string(ctx, -1, PRIVATE_MAGIC); + window_private_t *priv_win = duk_get_pointer(ctx, -1); + duk_pop(ctx); + + if (priv_win == NULL || priv_win->win == NULL) { + LOG("failed to get browser context"); + return 0; + } + + nsurl *joined; + duk_size_t slen; + const char *url = duk_safe_to_lstring(ctx, 0, &slen); + + nsurl_join(priv->url, url, &joined); + browser_window_navigate(priv_win->win, + joined, + NULL, + BW_NAVIGATE_NONE, + NULL, + NULL, + NULL); + nsurl_unref(joined); + return 0; +%} + +getter Location::href() +%{ + char *url_s = NULL; + size_t url_l; + + nsurl_get(priv->url, NSURL_COMPLETE, &url_s, &url_l); + if (url_s == NULL) { + return 0; + } + + duk_push_lstring(ctx, url_s, url_l); + + if (url_s != NULL) { + free(url_s); + } + + return 1; +%} + +setter Location::href() +%{ + /* retrieve the private data from the root object (window) */ + duk_push_global_object(ctx); + duk_get_prop_string(ctx, -1, PRIVATE_MAGIC); + window_private_t *priv_win = duk_get_pointer(ctx, -1); + duk_pop(ctx); + + if (priv_win == NULL || priv_win->win == NULL) { + LOG("failed to get browser context"); + return 0; + } + + nsurl *joined; + duk_size_t slen; + const char *url = duk_safe_to_lstring(ctx, 0, &slen); + + nsurl_join(priv->url, url, &joined); + browser_window_navigate(priv_win->win, + joined, + NULL, + BW_NAVIGATE_HISTORY, + NULL, + NULL, + NULL); + nsurl_unref(joined); + return 0; +%} + +getter Location::origin() +%{ + char *url_s = NULL; + size_t url_l; + + nsurl_get(priv->url, NSURL_SCHEME | NSURL_HOST | NSURL_PORT, &url_s, &url_l); + + /* if url_s is NULL duk_push_lstring pushes an empty string + * which is correct for this API + */ + duk_push_lstring(ctx, url_s, url_l); + + if (url_s != NULL) { + free(url_s); + } + + return 1; +%} + +getter Location::protocol() +%{ + char *url_s = NULL; + size_t url_l; + + nsurl_get(priv->url, NSURL_SCHEME, &url_s, &url_l); + + /* if url_s is NULL duk_push_lstring pushes an empty string + * which is correct for this API + */ + duk_push_lstring(ctx, url_s, url_l); + + if (url_s != NULL) { + free(url_s); + } + + return 1; +%} + + +getter Location::username() +%{ + char *url_s = NULL; + size_t url_l; + + nsurl_get(priv->url, NSURL_USERNAME, &url_s, &url_l); + + /* if url_s is NULL duk_push_lstring pushes an empty string + * which is correct for this API + */ + duk_push_lstring(ctx, url_s, url_l); + + if (url_s != NULL) { + free(url_s); + } + + return 1; +%} + + +getter Location::password() +%{ + char *url_s = NULL; + size_t url_l; + + nsurl_get(priv->url, NSURL_PASSWORD, &url_s, &url_l); + + /* if url_s is NULL duk_push_lstring pushes an empty string + * which is correct for this API + */ + duk_push_lstring(ctx, url_s, url_l); + + if (url_s != NULL) { + free(url_s); + } + + return 1; +%} + + +getter Location::host() +%{ + char *url_s = NULL; + size_t url_l; + + nsurl_get(priv->url, NSURL_HOST, &url_s, &url_l); + + /* if url_s is NULL duk_push_lstring pushes an empty string + * which is correct for this API + */ + duk_push_lstring(ctx, url_s, url_l); + + if (url_s != NULL) { + free(url_s); + } + + return 1; +%} + + +getter Location::hostname() +%{ + char *url_s = NULL; + size_t url_l; + + nsurl_get(priv->url, NSURL_HOST, &url_s, &url_l); + + /* if url_s is NULL duk_push_lstring pushes an empty string + * which is correct for this API + */ + duk_push_lstring(ctx, url_s, url_l); + + if (url_s != NULL) { + free(url_s); + } + + return 1; +%} + + + +getter Location::port() +%{ + char *url_s = NULL; + size_t url_l; + + nsurl_get(priv->url, NSURL_PORT, &url_s, &url_l); + + /* if url_s is NULL duk_push_lstring pushes an empty string + * which is correct for this API + */ + duk_push_lstring(ctx, url_s, url_l); + + if (url_s != NULL) { + free(url_s); + } + + return 1; +%} + + +getter Location::pathname() +%{ + char *url_s = NULL; + size_t url_l; + + nsurl_get(priv->url, NSURL_PATH, &url_s, &url_l); + + /* if url_s is NULL duk_push_lstring pushes an empty string + * which is correct for this API + */ + duk_push_lstring(ctx, url_s, url_l); + + if (url_s != NULL) { + free(url_s); + } + + return 1; +%} + + +getter Location::search() +%{ + char *url_s = NULL; + size_t url_l; + + nsurl_get(priv->url, NSURL_QUERY, &url_s, &url_l); + + /* if url_s is NULL duk_push_lstring pushes an empty string + * which is correct for this API + */ + duk_push_lstring(ctx, url_s, url_l); + + if (url_s != NULL) { + free(url_s); + } + + return 1; +%} + + +getter Location::hash() +%{ + char *url_s = NULL; + size_t url_l; + + nsurl_get(priv->url, NSURL_FRAGMENT, &url_s, &url_l); + + /* if url_s is NULL duk_push_lstring pushes an empty string + * which is correct for this API + */ + duk_push_lstring(ctx, url_s, url_l); + + if (url_s != NULL) { + free(url_s); + } + + return 1; +%} + + diff --git a/content/handlers/javascript/duktape/Makefile b/content/handlers/javascript/duktape/Makefile new file mode 100644 index 000000000..89f83b153 --- /dev/null +++ b/content/handlers/javascript/duktape/Makefile @@ -0,0 +1,40 @@ +# +# NetSurf javascript source file inclusion +# +# Included by javascript/Makefile +# + +content/handlers/javascript/dukky.c: $(OBJROOT)/duktape/binding.h + +BINDINGS := $(wildcard content/handlers/javascript/duktape/*.bnd) + +# ensure genbind generates debugging files +GBFLAGS+=-D + +$(OBJROOT)/duktape/binding.h $(OBJROOT)/duktape/Makefile: content/handlers/javascript/duktape/netsurf.bnd $(BINDINGS) + $(Q)mkdir -p $(OBJROOT)/duktape + $(VQ)echo " GENBIND: $<" + $(Q)nsgenbind $(GBFLAGS) -I content/handlers/javascript/WebIDL $< $(OBJROOT)/duktape + $(VQ)echo " GENBIND: completed" + +# create unimplemented report for doxygen +Docs/UnimplementedJavascript.txt: content/handlers/javascript/duktape/netsurf.bnd $(BINDINGS) + $(Q)mkdir -p $(OBJROOT)/duktape + $(VQ)echo "/** \page unimplemented Unimplemented javascript bindings" > $@ + $(VQ)echo "This is a list of all the binding methods, getters and setters without an implementation in a binding." >> $@ + $(VQ)echo "" >> $@ + $(VQ)echo " GENBIND: $<" + $(Q)nsgenbind $(GBFLAGS) -Wunimplemented -I content/handlers/javascript/WebIDL $< $(OBJROOT)/duktape 2>&1 >/dev/null | grep "Unimplemented" | cut -d' ' -f4- | sort -k 2 | awk '{print $$0"\\n" }' >> $@ + $(VQ)echo "*/" >> $@ + +ifeq ($(filter $(MAKECMDGOALS),clean test coverage),) +-include $(OBJROOT)/duktape/Makefile +endif + +S_JAVASCRIPT_BINDING:=$(addprefix $(OBJROOT)/duktape/,$(NSGENBIND_SOURCES)) + +$(S_JAVASCRIPT_BINDING): $(BINDINGS) + +S_JAVASCRIPT += content.c duktape/dukky.c duktape/duktape.c + +CFLAGS += -DDUK_OPT_HAVE_CUSTOM_H diff --git a/content/handlers/javascript/duktape/Navigator.bnd b/content/handlers/javascript/duktape/Navigator.bnd new file mode 100644 index 000000000..b18ca8e83 --- /dev/null +++ b/content/handlers/javascript/duktape/Navigator.bnd @@ -0,0 +1,87 @@ +/* Navigator binding for browser using duktape and libdom + * + * Copyright 2015 Vincent Sanders + * + * This file is part of NetSurf, http://www.netsurf-browser.org/ + * + * Released under the terms of the MIT License, + * http://www.opensource.org/licenses/mit-license + */ + +prologue Navigator() +%{ +#include "utils/useragent.h" +%} + +method Navigator::taintEnabled() +%{ + duk_push_boolean(ctx, false); + return 1; +%} + +getter Navigator::appCodeName() +%{ + duk_push_string(ctx, "Mozilla"); + return 1; +%} + +getter Navigator::appName() +%{ + duk_push_string(ctx, "Netscape"); + return 1; +%} + +getter Navigator::appVersion() +%{ + duk_push_string(ctx, "3.4"); + return 1; +%} + +getter Navigator::platform() +%{ + duk_push_string(ctx, NULL); + return 1; +%} + +getter Navigator::product() +%{ + duk_push_string(ctx, "Gecko"); + return 1; +%} + +getter Navigator::productSub() +%{ + duk_push_string(ctx, "20100101"); + return 1; +%} + +getter Navigator::vendor() +%{ + duk_push_string(ctx, NULL); + return 1; +%} + +getter Navigator::vendorSub() +%{ + duk_push_string(ctx, NULL); + return 1; +%} + +getter Navigator::cookieEnabled() +%{ + duk_push_boolean(ctx, false); + return 1; +%} + +/* indicate there is no plugin for java installed */ +getter Navigator::javaEnabled() +%{ + duk_push_boolean(ctx, false); + return 1; +%} + +getter Navigator::userAgent() +%{ + duk_push_string(ctx, user_agent_string()); + return 1; +%} diff --git a/content/handlers/javascript/duktape/Node.bnd b/content/handlers/javascript/duktape/Node.bnd new file mode 100644 index 000000000..f237c876a --- /dev/null +++ b/content/handlers/javascript/duktape/Node.bnd @@ -0,0 +1,479 @@ +/* Node binding for browser using duktape and libdom + * + * Copyright 2015 Vincent Sanders + * + * This file is part of NetSurf, http://www.netsurf-browser.org/ + * + * Released under the terms of the MIT License, + * http://www.opensource.org/licenses/mit-license + */ + +class Node { + private dom_node *node; +}; + +init Node(struct dom_node *node) +%{ + priv->node = node; + dom_node_ref(node); +%} + +fini Node() +%{ + dom_node_unref(priv->node); +%} + +getter Node::nodeType() +%{ + dom_exception exc; + dom_node_type ntype; + exc = dom_node_get_node_type(priv->node, &ntype); + if (exc != DOM_NO_ERR) return 0; + duk_push_uint(ctx, (duk_uint_t)ntype); + return 1; +%} + +getter Node::nodeName() +%{ + dom_exception exc; + dom_string *str = NULL; + exc = dom_node_get_node_name(priv->node, &str); + if (exc != DOM_NO_ERR) return 0; + duk_push_lstring(ctx, dom_string_data(str), dom_string_length(str)); + dom_string_unref(str); + return 1; +%} + +getter Node::baseURI() +%{ + dom_exception exc; + dom_string *base = NULL; + exc = dom_node_get_base(priv->node, &base); + if (exc != DOM_NO_ERR) return 0; + assert(base != NULL); + duk_push_lstring(ctx, dom_string_data(base), dom_string_length(base)); + dom_string_unref(base); + return 1; +%} + +getter Node::ownerDocument() +%{ + dom_exception exc; + dom_node *doc; + exc = dom_node_get_owner_document(priv->node, &doc); + if (exc != DOM_NO_ERR) return 0; + if (doc == NULL) return 0; + dukky_push_node(ctx, doc); + dom_node_unref(doc); + return 1; +%} + +getter Node::parentNode() +%{ + dom_exception exc; + dom_node *pnode = NULL; + exc = dom_node_get_parent_node(priv->node, &pnode); + if (exc != DOM_NO_ERR) return 0; + dukky_push_node(ctx, pnode); + dom_node_unref(pnode); + return 1; +%} + +getter Node::parentElement() +%{ + dom_exception exc; + dom_node *pnode = NULL; + dom_node_type ntype = DOM_NODE_TYPE_COUNT + 1; + exc = dom_node_get_parent_node(priv->node, &pnode); + if (exc != DOM_NO_ERR) return 0; + if (pnode != NULL) { + exc = dom_node_get_node_type(pnode, &ntype); + if (exc != DOM_NO_ERR) { dom_node_unref(pnode); return 0; } + } + dukky_push_node(ctx, (ntype == DOM_ELEMENT_NODE) ? pnode : NULL); + dom_node_unref(pnode); + return 1; +%} + +method Node::hasChildNodes() +%{ + dom_exception exc; + bool res; + exc = dom_node_has_child_nodes(priv->node, &res); + if (exc != DOM_NO_ERR) return 0; + duk_push_boolean(ctx, res); + return 1; +%} + +getter Node::childNodes() +%{ + dom_exception exc; + dom_nodelist *nlist = NULL; + duk_set_top(ctx, 0); + duk_push_this(ctx); + duk_get_prop_string(ctx, 0, MAGIC(childNodes)); + if (duk_is_undefined(ctx, -1)) { + duk_pop(ctx); + exc = dom_node_get_child_nodes(priv->node, &nlist); + if (exc != DOM_NO_ERR) return 0; + duk_push_pointer(ctx, nlist); + if (dukky_create_object(ctx, PROTO_NAME(NODELIST), 1) != DUK_EXEC_SUCCESS) { + dom_nodelist_unref(nlist); + return 0; + } + dom_nodelist_unref(nlist); + duk_dup(ctx, -1); + duk_put_prop_string(ctx, 0, MAGIC(childNodes)); + } + return 1; +%} + +getter Node::firstChild() +%{ + dom_exception exc; + dom_node *n; + exc = dom_node_get_first_child(priv->node, &n); + if (exc != DOM_NO_ERR) return 0; + if (dukky_push_node(ctx, n) == false) { + dom_node_unref(n); + return 0; + } + dom_node_unref(n); + return 1; +%} + +getter Node::lastChild() +%{ + dom_exception exc; + dom_node *n; + exc = dom_node_get_last_child(priv->node, &n); + if (exc != DOM_NO_ERR) return 0; + if (dukky_push_node(ctx, n) == false) { + dom_node_unref(n); + return 0; + } + dom_node_unref(n); + return 1; +%} + +getter Node::previousSibling() +%{ + dom_exception exc; + dom_node *n; + exc = dom_node_get_previous_sibling(priv->node, &n); + if (exc != DOM_NO_ERR) return 0; + if (dukky_push_node(ctx, n) == false) { + dom_node_unref(n); + return 0; + } + dom_node_unref(n); + return 1; +%} + +getter Node::nextSibling() +%{ + dom_exception exc; + dom_node *n; + exc = dom_node_get_next_sibling(priv->node, &n); + if (exc != DOM_NO_ERR) return 0; + if (dukky_push_node(ctx, n) == false) { + dom_node_unref(n); + return 0; + } + dom_node_unref(n); + return 1; +%} + +getter Node::nodeValue() +%{ + dom_exception exc; + dom_string *content; + + exc = dom_node_get_node_value(priv->node, &content); + if (exc != DOM_NO_ERR) { + return 0; + } + + if (content != NULL) { + duk_push_lstring(ctx, dom_string_data(content), dom_string_length(content)); + dom_string_unref(content); + return 1; + } + return 0; +%} + +setter Node::nodeValue() +%{ + dom_exception exc; + dom_string *content; + duk_size_t slen; + const char *s = duk_safe_to_lstring(ctx, 0, &slen); + exc = dom_string_create((const uint8_t *)s, slen, &content); + if (exc != DOM_NO_ERR) return 0; + exc = dom_node_set_node_value(priv->node, content); + dom_string_unref(content); + return 0; +%} + +getter Node::textContent() +%{ + dom_exception exc; + dom_string *content; + + exc = dom_node_get_text_content(priv->node, &content); + if (exc != DOM_NO_ERR) { + return 0; + } + + if (content != NULL) { + duk_push_lstring(ctx, dom_string_data(content), dom_string_length(content)); + dom_string_unref(content); + return 1; + } + return 0; +%} + +setter Node::textContent() +%{ + dom_exception exc; + dom_string *content; + duk_size_t slen; + const char *s = duk_safe_to_lstring(ctx, 0, &slen); + exc = dom_string_create((const uint8_t *)s, slen, &content); + if (exc != DOM_NO_ERR) return 0; + exc = dom_node_set_text_content(priv->node, content); + dom_string_unref(content); + return 0; +%} + +method Node::normalize() +%{ + dom_exception exc; + exc = dom_node_normalize(priv->node); + if (exc != DOM_NO_ERR) return 0; + return 0; +%} + +method Node::cloneNode() +%{ + dom_exception exc; + bool deep; + dom_node *clone; + + deep = duk_to_boolean(ctx, 0); + + exc = dom_node_clone_node(priv->node, deep, &clone); + if (exc != DOM_NO_ERR) return 0; + duk_set_top(ctx, 0); + dukky_push_node(ctx, clone); + dom_node_unref(clone); + return 1; +%} + +method Node::isEqualNode() +%{ + dom_exception exc; + bool result; + + if (!dukky_instanceof(ctx, 0, PROTO_NAME(NODE))) return 0; + + duk_get_prop_string(ctx, 0, PRIVATE_MAGIC); + node_private_t *other = duk_get_pointer(ctx, -1); + duk_pop(ctx); + + exc = dom_node_is_equal(priv->node, other->node, &result); + if (exc != DOM_NO_ERR) return 0; + duk_push_boolean(ctx, result); + return 1; +%} + +method Node::compareDocumentPosition() +%{ + dom_exception exc; + uint16_t ret; + + if (!dukky_instanceof(ctx, 0, PROTO_NAME(NODE))) return 0; + + duk_get_prop_string(ctx, 0, PRIVATE_MAGIC); + node_private_t *other = duk_get_pointer(ctx, -1); + duk_pop(ctx); + + exc = dom_node_compare_document_position(priv->node, other->node, + &ret); + + if (exc != DOM_NO_ERR) return 0; + + duk_push_uint(ctx, ret); + + return 1; +%} + +method Node::contains() +%{ + dom_exception exc; + uint16_t ret; + + if (!dukky_instanceof(ctx, 0, PROTO_NAME(NODE))) return 0; + + duk_get_prop_string(ctx, 0, PRIVATE_MAGIC); + node_private_t *other = duk_get_pointer(ctx, -1); + duk_pop(ctx); + + /* Note that inclusive descendant says *IS* or *CONTAINED_BY* */ + if (priv->node == other->node) { + duk_push_boolean(ctx, true); + return 1; + } + + exc = dom_node_compare_document_position(priv->node, other->node, + &ret); + + if (exc != DOM_NO_ERR) return 0; + + duk_push_boolean(ctx, ret == DOM_DOCUMENT_POSITION_CONTAINED_BY); + + return 1; +%} + +method Node::lookupPrefix() +%{ + dom_exception exc; + dom_string *ns, *pfx; + duk_size_t size; + const char *s = duk_safe_to_lstring(ctx, 0, &size); + exc = dom_string_create((const uint8_t *)s, size, &ns); + if (exc != DOM_NO_ERR) return 0; + exc = dom_node_lookup_prefix(priv->node, ns, &pfx); + dom_string_unref(ns); + if (exc != DOM_NO_ERR) return 0; + if (pfx == NULL) return 0; + duk_push_lstring(ctx, dom_string_data(pfx), dom_string_length(pfx)); + dom_string_unref(pfx); + return 0; +%} + +method Node::lookupNamespaceURI() +%{ + dom_exception exc; + dom_string *ns, *pfx; + duk_size_t size; + const char *s = duk_safe_to_lstring(ctx, 0, &size); + exc = dom_string_create((const uint8_t *)s, size, &pfx); + if (exc != DOM_NO_ERR) return 0; + exc = dom_node_lookup_namespace(priv->node, pfx, &ns); + dom_string_unref(pfx); + if (exc != DOM_NO_ERR) return 0; + if (ns == NULL) return 0; + duk_push_lstring(ctx, dom_string_data(ns), dom_string_length(ns)); + dom_string_unref(ns); + return 0; +%} + + +method Node::isDefaultNamespace() +%{ + dom_exception exc; + dom_string *ns; + duk_size_t size; + const char *s = duk_safe_to_lstring(ctx, 0, &size); + bool ret; + exc = dom_string_create((const uint8_t *)s, size, &ns); + if (exc != DOM_NO_ERR) return 0; + exc = dom_node_is_default_namespace(priv->node, ns, &ret); + dom_string_unref(ns); + if (exc != DOM_NO_ERR) return 0; + duk_push_boolean(ctx, ret); + return 1; +%} + +method Node::insertBefore() +%{ + if (!dukky_instanceof(ctx, 0, PROTO_NAME(NODE))) return 0; + + duk_get_prop_string(ctx, 0, PRIVATE_MAGIC); + node_private_t *other = duk_get_pointer(ctx, -1); + duk_pop(ctx); + + dom_node *before = NULL; + + if (duk_get_top(ctx) == 2) { + if (!dukky_instanceof(ctx, 1, PROTO_NAME(NODE))) return 0; + duk_get_prop_string(ctx, 1, PRIVATE_MAGIC); + node_private_t *another = duk_get_pointer(ctx, -1); + before = another->node; + duk_pop(ctx); + } + + dom_exception err; + dom_node *spare; + + err = dom_node_insert_before(priv->node, other->node, before, &spare); + if (err != DOM_NO_ERR) return 0; + dukky_push_node(ctx, spare); + dom_node_unref(spare); + + return 1; +%} + +method Node::appendChild() +%{ + if (!dukky_instanceof(ctx, 0, PROTO_NAME(NODE))) return 0; + + duk_get_prop_string(ctx, 0, PRIVATE_MAGIC); + node_private_t *other = duk_get_pointer(ctx, -1); + duk_pop(ctx); + + dom_exception err; + dom_node *spare; + + err = dom_node_append_child(priv->node, other->node, &spare); + if (err != DOM_NO_ERR) return 0; + dukky_push_node(ctx, spare); + dom_node_unref(spare); + + return 1; +%} + +method Node::replaceChild() +%{ + if (!dukky_instanceof(ctx, 0, PROTO_NAME(NODE))) return 0; + + duk_get_prop_string(ctx, 0, PRIVATE_MAGIC); + node_private_t *other = duk_get_pointer(ctx, -1); + duk_pop(ctx); + + if (!dukky_instanceof(ctx, 1, PROTO_NAME(NODE))) return 0; + + duk_get_prop_string(ctx, 1, PRIVATE_MAGIC); + node_private_t *old = duk_get_pointer(ctx, -1); + duk_pop(ctx); + + dom_exception err; + dom_node *spare; + + err = dom_node_replace_child(priv->node, other->node, old->node, &spare); + if (err != DOM_NO_ERR) return 0; + dukky_push_node(ctx, spare); + dom_node_unref(spare); + + return 1; +%} + +method Node::removeChild() +%{ + if (!dukky_instanceof(ctx, 0, PROTO_NAME(NODE))) return 0; + + duk_get_prop_string(ctx, 0, PRIVATE_MAGIC); + node_private_t *other = duk_get_pointer(ctx, -1); + duk_pop(ctx); + + dom_exception err; + dom_node *spare; + + err = dom_node_remove_child(priv->node, other->node, &spare); + if (err != DOM_NO_ERR) return 0; + dukky_push_node(ctx, spare); + dom_node_unref(spare); + + return 1; +%} diff --git a/content/handlers/javascript/duktape/NodeList.bnd b/content/handlers/javascript/duktape/NodeList.bnd new file mode 100644 index 000000000..7ddf56d15 --- /dev/null +++ b/content/handlers/javascript/duktape/NodeList.bnd @@ -0,0 +1,54 @@ +/* NodeList binding for browser using duktape and libdom + * + * Copyright 2015 Vincent Sanders + * + * This file is part of NetSurf, http://www.netsurf-browser.org/ + * + * Released under the terms of the MIT License, + * http://www.opensource.org/licenses/mit-license + */ + +class NodeList { + private struct dom_nodelist *nodes; +}; + +init NodeList(struct dom_nodelist *nodes) +%{ + priv->nodes = nodes; + dom_nodelist_ref(nodes); +%} + +fini NodeList() +%{ + dom_nodelist_unref(priv->nodes); +%} + +getter NodeList::length() +%{ + dom_exception err; + uint32_t len; + + err = dom_nodelist_get_length(priv->nodes, &len); + + if (err != DOM_NO_ERR) return 0; /* coerced to undefined */ + + duk_push_uint(ctx, (duk_uint_t)len); + + return 1; +%} + +method NodeList::item() +%{ + unsigned long i = duk_to_uint(ctx, 0); + dom_exception err; + dom_node *node; + + err = dom_nodelist_item(priv->nodes, i, &node); + + if (err != DOM_NO_ERR) return 0; /* coerced to undefied */ + + dukky_push_node(ctx, node); + dom_node_unref(node); + + return 1; +%} diff --git a/content/handlers/javascript/duktape/Window.bnd b/content/handlers/javascript/duktape/Window.bnd new file mode 100644 index 000000000..489587899 --- /dev/null +++ b/content/handlers/javascript/duktape/Window.bnd @@ -0,0 +1,146 @@ +/* Window binding for browser using duktape and libdom + * + * Copyright 2015 Vincent Sanders + * + * This file is part of NetSurf, http://www.netsurf-browser.org/ + * + * Released under the terms of the MIT License, + * http://www.opensource.org/licenses/mit-license + */ + +class Window { + private struct browser_window * win; + private struct html_content * htmlc; + prologue %{ +#include "utils/nsurl.h" +#include "netsurf/browser_window.h" +#include "content/hlcache.h" +#include "render/html.h" +#include "render/html_internal.h" +%}; +}; + +init Window(struct browser_window *win, struct html_content *htmlc) +%{ + /* element window */ + priv->win = win; + priv->htmlc = htmlc; + LOG("win=%p htmlc=%p", priv->win, priv->htmlc); + + LOG("URL is %s", nsurl_access(browser_window_get_url(priv->win))); +%} + +prototype Window() +%{ +#define EXPOSE(v) \ + duk_get_global_string(ctx, #v); \ + duk_put_prop_string(ctx, 0, #v) + /* steal undefined */ + EXPOSE(undefined); + EXPOSE(eval); + EXPOSE(Object); + EXPOSE(parseInt); + EXPOSE(parseFloat); + EXPOSE(Array); + EXPOSE(Date); + EXPOSE(RegExp); + EXPOSE(Math); + EXPOSE(Function); + EXPOSE(Proxy); + EXPOSE(String); +#undef EXPOSE +%} + +getter Window::document() +%{ + JS_LOG("priv=%p", priv); + dom_document *doc = priv->htmlc->document; + dukky_push_node(ctx, (struct dom_node *)doc); + return 1; +%} + +getter Window::window() +%{ + duk_push_this(ctx); + return 1; +%} + +getter Window::console() +%{ + duk_push_this(ctx); + duk_get_prop_string(ctx, -1, MAGIC(Console)); + if (duk_is_undefined(ctx, -1)) { + duk_pop(ctx); + if (dukky_create_object(ctx, PROTO_NAME(CONSOLE), 0) != DUK_EXEC_SUCCESS) { + duk_error(ctx, DUK_ERR_ERROR, "Unable to create console object"); + return 0; + } + duk_dup(ctx, -1); + duk_put_prop_string(ctx, -3, MAGIC(Console)); + } + return 1; +%} + +getter Window::location() +%{ + duk_push_this(ctx); + duk_get_prop_string(ctx, -1, MAGIC(Location)); + if (duk_is_undefined(ctx, -1)) { + duk_pop(ctx); + + duk_push_pointer(ctx, llcache_handle_get_url(priv->htmlc->base.llcache)); + + if (dukky_create_object(ctx, PROTO_NAME(LOCATION), 1) != DUK_EXEC_SUCCESS) { + duk_error(ctx, DUK_ERR_ERROR, "Unable to create location object"); + return 0; + } + duk_dup(ctx, -1); + duk_put_prop_string(ctx, -3, MAGIC(Location)); + } + return 1; +%} + +getter Window::navigator() +%{ + duk_push_this(ctx); + duk_get_prop_string(ctx, -1, MAGIC(Navigator)); + if (duk_is_undefined(ctx, -1)) { + duk_pop(ctx); + + if (dukky_create_object(ctx, + PROTO_NAME(NAVIGATOR), + 0) != DUK_EXEC_SUCCESS) { + duk_error(ctx, + DUK_ERR_ERROR, + "Unable to create navigator object"); + return 0; + } + duk_dup(ctx, -1); + duk_put_prop_string(ctx, -3, MAGIC(Navigator)); + } + return 1; +%} + +getter Window::name() +%{ + const char *name; + browser_window_get_name(priv->win, &name); + duk_push_string(ctx, name); + return 1; +%} + +setter Window::name() +%{ + const char *name; + name = duk_to_string(ctx, -1); + browser_window_set_name(priv->win, name); + return 0; +%} + +method Window::alert() +%{ + duk_size_t msg_len; + const char *msg = duk_safe_to_lstring(ctx, 0, &msg_len); + LOG("JS ALERT: %*s", (int)msg_len, msg); + return 0; +%} diff --git a/content/handlers/javascript/duktape/duk_config.h b/content/handlers/javascript/duktape/duk_config.h new file mode 100644 index 000000000..a3da70a3f --- /dev/null +++ b/content/handlers/javascript/duktape/duk_config.h @@ -0,0 +1,3753 @@ +/* + * duk_config.h configuration header generated by genconfig.py. + * + * Git commit: 83d557704ee63f68ab40b6fcb00995c9b3d6777c + * Git describe: v1.5.0 + * Git branch: master + * + * Supported platforms: + * - Mac OSX, iPhone, Darwin + * - OpenBSD + * - Generic BSD + * - Atari ST TOS + * - AmigaOS + * - Windows + * - Flashplayer (Crossbridge) + * - QNX + * - TI-Nspire + * - Emscripten + * - Linux + * - Solaris + * - Generic POSIX + * - Cygwin + * - Generic UNIX + * - Generic fallback + * + * Supported architectures: + * - x86 + * - x64 + * - x32 + * - ARM 32-bit + * - ARM 64-bit + * - MIPS 32-bit + * - MIPS 64-bit + * - PowerPC 32-bit + * - PowerPC 64-bit + * - SPARC 32-bit + * - SPARC 64-bit + * - SuperH + * - Motorola 68k + * - Emscripten + * - Generic + * + * Supported compilers: + * - Clang + * - GCC + * - MSVC + * - Emscripten + * - TinyC + * - VBCC + * - Bruce's C compiler + * - Generic + * + */ + +#if !defined(DUK_CONFIG_H_INCLUDED) +#define DUK_CONFIG_H_INCLUDED + +/* + * Intermediate helper defines + */ + +/* DLL build detection */ +#if defined(DUK_OPT_DLL_BUILD) +#define DUK_F_DLL_BUILD +#elif defined(DUK_OPT_NO_DLL_BUILD) +#undef DUK_F_DLL_BUILD +#else +/* not configured for DLL build */ +#undef DUK_F_DLL_BUILD +#endif + +/* Apple OSX, iOS */ +#if defined(__APPLE__) +#define DUK_F_APPLE +#endif + +/* OpenBSD */ +#if defined(__OpenBSD__) || defined(__OpenBSD) +#define DUK_F_OPENBSD +#endif + +/* NetBSD */ +#if defined(__NetBSD__) || defined(__NetBSD) +#define DUK_F_NETBSD +#endif + +/* FreeBSD */ +#if defined(__FreeBSD__) || defined(__FreeBSD) +#define DUK_F_FREEBSD +#endif + +/* BSD variant */ +#if defined(DUK_F_FREEBSD) || defined(DUK_F_NETBSD) || defined(DUK_F_OPENBSD) || \ + defined(__bsdi__) || defined(__DragonFly__) +#define DUK_F_BSD +#endif + +/* Atari ST TOS. __TOS__ defined by PureC. No platform define in VBCC + * apparently, so to use with VBCC user must define __TOS__ manually. + */ +#if defined(__TOS__) +#define DUK_F_TOS +#endif + +/* Motorola 68K. Not defined by VBCC, so user must define one of these + * manually when using VBCC. + */ +#if defined(__m68k__) || defined(M68000) || defined(__MC68K__) +#define DUK_F_M68K +#endif + +/* AmigaOS. Neither AMIGA nor __amigaos__ is defined on VBCC, so user must + * define 'AMIGA' manually when using VBCC. + */ +#if defined(AMIGA) || defined(__amigaos__) +#define DUK_F_AMIGAOS +#endif + +/* PowerPC */ +#if defined(__powerpc) || defined(__powerpc__) || defined(__PPC__) +#define DUK_F_PPC +#if defined(__PPC64__) || defined(__LP64__) || defined(_LP64) +#define DUK_F_PPC64 +#else +#define DUK_F_PPC32 +#endif +#endif + +/* Windows, both 32-bit and 64-bit */ +#if defined(_WIN32) || defined(WIN32) || defined(_WIN64) || defined(WIN64) || \ + defined(__WIN32__) || defined(__TOS_WIN__) || defined(__WINDOWS__) +#define DUK_F_WINDOWS +#if defined(_WIN64) || defined(WIN64) +#define DUK_F_WIN64 +#else +#define DUK_F_WIN32 +#endif +#endif + +/* Flash player (e.g. Crossbridge) */ +#if defined(__FLASHPLAYER__) +#define DUK_F_FLASHPLAYER +#endif + +/* QNX */ +#if defined(__QNX__) +#define DUK_F_QNX +#endif + +/* TI-Nspire (using Ndless) */ +#if defined(_TINSPIRE) +#define DUK_F_TINSPIRE +#endif + +/* Emscripten (provided explicitly by user), improve if possible */ +#if defined(EMSCRIPTEN) +#define DUK_F_EMSCRIPTEN +#endif + +/* BCC (Bruce's C compiler): this is a "torture target" for compilation */ +#if defined(__BCC__) || defined(__BCC_VERSION__) +#define DUK_F_BCC +#endif + +/* Linux */ +#if defined(__linux) || defined(__linux__) || defined(linux) +#define DUK_F_LINUX +#endif + +/* illumos / Solaris */ +#if defined(__sun) && defined(__SVR4) +#define DUK_F_SUN +#endif + +/* POSIX */ +#if defined(__posix) +#define DUK_F_POSIX +#endif + +/* Cygwin */ +#if defined(__CYGWIN__) +#define DUK_F_CYGWIN +#endif + +/* Generic Unix (includes Cygwin) */ +#if defined(__unix) || defined(__unix__) || defined(unix) || \ + defined(DUK_F_LINUX) || defined(DUK_F_BSD) +#define DUK_F_UNIX +#endif + +/* stdint.h not available */ +#if defined(DUK_F_WINDOWS) && defined(_MSC_VER) +#if (_MSC_VER < 1700) +/* VS2012+ has stdint.h, < VS2012 does not (but it's available for download). */ +#define DUK_F_NO_STDINT_H +#endif +#endif +#if !defined(DUK_F_NO_STDINT_H) && (defined(DUK_F_TOS) || defined(DUK_F_BCC)) +#define DUK_F_NO_STDINT_H +#endif + +/* C++ */ +#undef DUK_F_CPP +#if defined(__cplusplus) +#define DUK_F_CPP +#endif + +/* Intel x86 (32-bit), x64 (64-bit) or x32 (64-bit but 32-bit pointers), + * define only one of DUK_F_X86, DUK_F_X64, DUK_F_X32. + * https://sites.google.com/site/x32abi/ + */ +#if defined(__amd64__) || defined(__amd64) || \ + defined(__x86_64__) || defined(__x86_64) || \ + defined(_M_X64) || defined(_M_AMD64) +#if defined(__ILP32__) || defined(_ILP32) +#define DUK_F_X32 +#else +#define DUK_F_X64 +#endif +#elif defined(i386) || defined(__i386) || defined(__i386__) || \ + defined(__i486__) || defined(__i586__) || defined(__i686__) || \ + defined(__IA32__) || defined(_M_IX86) || defined(__X86__) || \ + defined(_X86_) || defined(__THW_INTEL__) || defined(__I86__) +#if defined(__LP64__) || defined(_LP64) +/* This should not really happen, but would indicate x64. */ +#define DUK_F_X64 +#else +#define DUK_F_X86 +#endif +#endif + +/* ARM */ +#if defined(__arm__) || defined(__thumb__) || defined(_ARM) || defined(_M_ARM) +#define DUK_F_ARM +#if defined(__LP64__) || defined(_LP64) || defined(__arm64) || defined(__arm64__) +#define DUK_F_ARM64 +#else +#define DUK_F_ARM32 +#endif +#endif + +/* MIPS. Related defines: __MIPSEB__, __MIPSEL__, __mips_isa_rev, __LP64__ */ +#if defined(__mips__) || defined(mips) || defined(_MIPS_ISA) || \ + defined(_R3000) || defined(_R4000) || defined(_R5900) || \ + defined(_MIPS_ISA_MIPS1) || defined(_MIPS_ISA_MIPS2) || \ + defined(_MIPS_ISA_MIPS3) || defined(_MIPS_ISA_MIPS4) || \ + defined(__mips) || defined(__MIPS__) +#define DUK_F_MIPS +#if defined(__LP64__) || defined(_LP64) || defined(__mips64) || \ + defined(__mips64__) || defined(__mips_n64) +#define DUK_F_MIPS64 +#else +#define DUK_F_MIPS32 +#endif +#endif + +/* SPARC */ +#if defined(sparc) || defined(__sparc) || defined(__sparc__) +#define DUK_F_SPARC +#if defined(__LP64__) || defined(_LP64) +#define DUK_F_SPARC64 +#else +#define DUK_F_SPARC32 +#endif +#endif + +/* SuperH */ +#if defined(__sh__) || \ + defined(__sh1__) || defined(__SH1__) || \ + defined(__sh2__) || defined(__SH2__) || \ + defined(__sh3__) || defined(__SH3__) || \ + defined(__sh4__) || defined(__SH4__) || \ + defined(__sh5__) || defined(__SH5__) +#define DUK_F_SUPERH +#endif + +/* Clang */ +#if defined(__clang__) +#define DUK_F_CLANG +#endif + +/* C99 or above */ +#undef DUK_F_C99 +#if defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 199901L) +#define DUK_F_C99 +#endif + +/* C++11 or above */ +#undef DUK_F_CPP11 +#if defined(__cplusplus) && (__cplusplus >= 201103L) +#define DUK_F_CPP11 +#endif + +/* GCC. Clang also defines __GNUC__ so don't detect GCC if using Clang. */ +#if defined(__GNUC__) && !defined(__clang__) && !defined(DUK_F_CLANG) +#define DUK_F_GCC +#if defined(__GNUC__) && defined(__GNUC_MINOR__) && defined(__GNUC_PATCHLEVEL__) +/* Convenience, e.g. gcc 4.5.1 == 40501; http://stackoverflow.com/questions/6031819/emulating-gccs-builtin-unreachable */ +#define DUK_F_GCC_VERSION (__GNUC__ * 10000L + __GNUC_MINOR__ * 100L + __GNUC_PATCHLEVEL__) +#else +#error cannot figure out gcc version +#endif +#endif + +/* MinGW. Also GCC flags (DUK_F_GCC) are enabled now. */ +#if defined(__MINGW32__) || defined(__MINGW64__) +#define DUK_F_MINGW +#endif + +/* MSVC */ +#if defined(_MSC_VER) +/* MSVC preprocessor defines: http://msdn.microsoft.com/en-us/library/b0084kay.aspx + * _MSC_FULL_VER includes the build number, but it has at least two formats, see e.g. + * BOOST_MSVC_FULL_VER in http://www.boost.org/doc/libs/1_52_0/boost/config/compiler/visualc.hpp + */ +#define DUK_F_MSVC +#if defined(_MSC_FULL_VER) +#if (_MSC_FULL_VER > 100000000) +#define DUK_F_MSVC_FULL_VER _MSC_FULL_VER +#else +#define DUK_F_MSCV_FULL_VER (_MSC_FULL_VER * 10) +#endif +#endif +#endif /* _MSC_VER */ + +/* TinyC */ +#if defined(__TINYC__) +/* http://bellard.org/tcc/tcc-doc.html#SEC9 */ +#define DUK_F_TINYC +#endif + +/* VBCC */ +#if defined(__VBCC__) +#define DUK_F_VBCC +#endif + +/* Atari Mint */ +#if defined(__MINT__) +#define DUK_F_MINT +#endif + +/* + * Platform autodetection + */ + +/* Workaround for older C++ compilers before including , + * see e.g.: https://sourceware.org/bugzilla/show_bug.cgi?id=15366 + */ +#if defined(__cplusplus) && !defined(__STDC_LIMIT_MACROS) +#define __STDC_LIMIT_MACROS +#endif +#if defined(__cplusplus) && !defined(__STDC_CONSTANT_MACROS) +#define __STDC_CONSTANT_MACROS +#endif + +#if defined(DUK_F_APPLE) +/* --- Mac OSX, iPhone, Darwin --- */ +#define DUK_USE_DATE_NOW_GETTIMEOFDAY +#define DUK_USE_DATE_TZO_GMTIME_R +#define DUK_USE_DATE_PRS_STRPTIME +#define DUK_USE_DATE_FMT_STRFTIME +#include +#include +#include +#include +#include + +/* http://stackoverflow.com/questions/5919996/how-to-detect-reliably-mac-os-x-ios-linux-windows-in-c-preprocessor */ +#if TARGET_IPHONE_SIMULATOR +#define DUK_USE_OS_STRING "iphone-sim" +#elif TARGET_OS_IPHONE +#define DUK_USE_OS_STRING "iphone" +#elif TARGET_OS_MAC +#define DUK_USE_OS_STRING "osx" +#else +#define DUK_USE_OS_STRING "osx-unknown" +#endif + +/* Use _setjmp() on Apple by default, see GH-55. */ +#define DUK_JMPBUF_TYPE jmp_buf +#define DUK_SETJMP(jb) _setjmp((jb)) +#define DUK_LONGJMP(jb) _longjmp((jb), 1) +#elif defined(DUK_F_OPENBSD) +/* --- OpenBSD --- */ +/* http://www.monkey.org/openbsd/archive/ports/0401/msg00089.html */ +#define DUK_USE_DATE_NOW_GETTIMEOFDAY +#define DUK_USE_DATE_TZO_GMTIME_R +#define DUK_USE_DATE_PRS_STRPTIME +#define DUK_USE_DATE_FMT_STRFTIME +#include +#include +#include +#include +#include + +#define DUK_USE_OS_STRING "openbsd" +#elif defined(DUK_F_BSD) +/* --- Generic BSD --- */ +#define DUK_USE_DATE_NOW_GETTIMEOFDAY +#define DUK_USE_DATE_TZO_GMTIME_R +#define DUK_USE_DATE_PRS_STRPTIME +#define DUK_USE_DATE_FMT_STRFTIME +#include +#include +#include +#include +#include + +#define DUK_USE_OS_STRING "bsd" +#elif defined(DUK_F_TOS) +/* --- Atari ST TOS --- */ +#define DUK_USE_DATE_NOW_TIME +#define DUK_USE_DATE_TZO_GMTIME +/* no parsing (not an error) */ +#define DUK_USE_DATE_FMT_STRFTIME +#include + +#define DUK_USE_OS_STRING "tos" + +/* TOS on M68K is always big endian. */ +#if !defined(DUK_USE_BYTEORDER) && defined(DUK_F_M68K) +#define DUK_USE_BYTEORDER 3 +#endif +#elif defined(DUK_F_AMIGAOS) +/* --- AmigaOS --- */ +#if defined(DUK_F_M68K) +/* AmigaOS on M68k */ +#define DUK_USE_DATE_NOW_TIME +#define DUK_USE_DATE_TZO_GMTIME +/* no parsing (not an error) */ +#define DUK_USE_DATE_FMT_STRFTIME +#include +#elif defined(DUK_F_PPC) +#define DUK_USE_DATE_NOW_GETTIMEOFDAY +#define DUK_USE_DATE_TZO_GMTIME_R +#define DUK_USE_DATE_PRS_STRPTIME +#define DUK_USE_DATE_FMT_STRFTIME +#include +#ifndef UINTPTR_MAX +#define UINTPTR_MAX UINT_MAX +#endif +#else +#error AmigaOS but not M68K/PPC, not supported now +#endif + +#define DUK_USE_OS_STRING "amigaos" + +/* AmigaOS on M68K or PPC is always big endian. */ +#if !defined(DUK_USE_BYTEORDER) && (defined(DUK_F_M68K) || defined(DUK_F_PPC)) +#define DUK_USE_BYTEORDER 3 +#endif +#elif defined(DUK_F_WINDOWS) +/* --- Windows --- */ +/* Initial fix: disable secure CRT related warnings when compiling Duktape + * itself (must be defined before including Windows headers). Don't define + * for user code including duktape.h. + */ +#if defined(DUK_COMPILING_DUKTAPE) && !defined(_CRT_SECURE_NO_WARNINGS) +#define _CRT_SECURE_NO_WARNINGS +#endif + +/* Windows 32-bit and 64-bit are currently the same. */ +/* MSVC does not have sys/param.h */ +#define DUK_USE_DATE_NOW_WINDOWS +#define DUK_USE_DATE_TZO_WINDOWS +/* Note: PRS and FMT are intentionally left undefined for now. This means + * there is no platform specific date parsing/formatting but there is still + * the ISO 8601 standard format. + */ +#if defined(DUK_COMPILING_DUKTAPE) +/* Only include when compiling Duktape to avoid polluting application build + * with a lot of unnecessary defines. + */ +#include +#endif + +#define DUK_USE_OS_STRING "windows" + +/* On Windows, assume we're little endian. Even Itanium which has a + * configurable endianness runs little endian in Windows. + */ +#if !defined(DUK_USE_BYTEORDER) +#define DUK_USE_BYTEORDER 1 +#endif +#elif defined(DUK_F_FLASHPLAYER) +/* --- Flashplayer (Crossbridge) --- */ +#define DUK_USE_DATE_NOW_GETTIMEOFDAY +#define DUK_USE_DATE_TZO_GMTIME_R +#define DUK_USE_DATE_PRS_STRPTIME +#define DUK_USE_DATE_FMT_STRFTIME +#include +#include +#include +#include + +#define DUK_USE_OS_STRING "flashplayer" + +#if !defined(DUK_USE_BYTEORDER) && defined(DUK_F_FLASHPLAYER) +#define DUK_USE_BYTEORDER 1 +#endif +#elif defined(DUK_F_QNX) +/* --- QNX --- */ +#if defined(DUK_F_QNX) && defined(DUK_COMPILING_DUKTAPE) +/* See: /opt/qnx650/target/qnx6/usr/include/sys/platform.h */ +#define _XOPEN_SOURCE 600 +#define _POSIX_C_SOURCE 200112L +#endif + +#define DUK_USE_DATE_NOW_GETTIMEOFDAY +#define DUK_USE_DATE_TZO_GMTIME_R +#define DUK_USE_DATE_PRS_STRPTIME +#define DUK_USE_DATE_FMT_STRFTIME +#include +#include +#include +#include + +#define DUK_USE_OS_STRING "qnx" +#elif defined(DUK_F_TINSPIRE) +/* --- TI-Nspire --- */ +#define DUK_USE_DATE_NOW_GETTIMEOFDAY +#define DUK_USE_DATE_TZO_GMTIME_R +#define DUK_USE_DATE_PRS_STRPTIME +#define DUK_USE_DATE_FMT_STRFTIME +#include +#include +#include +#include + +#define DUK_USE_OS_STRING "tinspire" +#elif defined(DUK_F_EMSCRIPTEN) +/* --- Emscripten --- */ +#if defined(DUK_COMPILING_DUKTAPE) +#ifndef _POSIX_C_SOURCE +#define _POSIX_C_SOURCE 200809L +#endif +#ifndef _GNU_SOURCE +#define _GNU_SOURCE /* e.g. getdate_r */ +#endif +#ifndef _XOPEN_SOURCE +#define _XOPEN_SOURCE /* e.g. strptime */ +#endif +#endif /* DUK_COMPILING_DUKTAPE */ + +#include +#if defined(DUK_F_BCC) +/* no endian.h */ +#else +#include +#endif /* DUK_F_BCC */ +#include +#include +#include +#include + +#define DUK_USE_DATE_NOW_GETTIMEOFDAY +#define DUK_USE_DATE_TZO_GMTIME_R +#define DUK_USE_DATE_PRS_STRPTIME +#define DUK_USE_DATE_FMT_STRFTIME + +#define DUK_USE_OS_STRING "emscripten" +#elif defined(DUK_F_LINUX) +/* --- Linux --- */ +#if defined(DUK_COMPILING_DUKTAPE) +#ifndef _POSIX_C_SOURCE +#define _POSIX_C_SOURCE 200809L +#endif +#ifndef _GNU_SOURCE +#define _GNU_SOURCE /* e.g. getdate_r */ +#endif +#ifndef _XOPEN_SOURCE +#define _XOPEN_SOURCE /* e.g. strptime */ +#endif +#endif /* DUK_COMPILING_DUKTAPE */ + +#include +#if defined(DUK_F_BCC) +/* no endian.h or stdint.h */ +#else +#include +#include +#endif /* DUK_F_BCC */ +#include +#include +#include + +#define DUK_USE_DATE_NOW_GETTIMEOFDAY +#define DUK_USE_DATE_TZO_GMTIME_R +#define DUK_USE_DATE_PRS_STRPTIME +#define DUK_USE_DATE_FMT_STRFTIME + +#define DUK_USE_OS_STRING "linux" +#elif defined(DUK_F_SUN) +/* --- Solaris --- */ +#define DUK_USE_DATE_NOW_GETTIMEOFDAY +#define DUK_USE_DATE_TZO_GMTIME_R +#define DUK_USE_DATE_PRS_STRPTIME +#define DUK_USE_DATE_FMT_STRFTIME + +#include +#include +#include +#include +#include + +#define DUK_USE_OS_STRING "solaris" +#elif defined(DUK_F_POSIX) +/* --- Generic POSIX --- */ +#define DUK_USE_DATE_NOW_GETTIMEOFDAY +#define DUK_USE_DATE_TZO_GMTIME_R +#define DUK_USE_DATE_PRS_STRPTIME +#define DUK_USE_DATE_FMT_STRFTIME +#include +#include +#include +#include +#include + +#define DUK_USE_OS_STRING "posix" +#elif defined(DUK_F_CYGWIN) +/* --- Cygwin --- */ +/* don't use strptime() for now */ +#define DUK_USE_DATE_NOW_GETTIMEOFDAY +#define DUK_USE_DATE_TZO_GMTIME_R +#define DUK_USE_DATE_FMT_STRFTIME +#include +#include +#include +#include +#include + +#define DUK_JMPBUF_TYPE jmp_buf +#define DUK_SETJMP(jb) _setjmp((jb)) +#define DUK_LONGJMP(jb) _longjmp((jb), 1) + +#define DUK_USE_OS_STRING "windows" +#elif defined(DUK_F_UNIX) +/* --- Generic UNIX --- */ +#define DUK_USE_DATE_NOW_GETTIMEOFDAY +#define DUK_USE_DATE_TZO_GMTIME_R +#define DUK_USE_DATE_PRS_STRPTIME +#define DUK_USE_DATE_FMT_STRFTIME +#include +#include +#define DUK_USE_OS_STRING "unknown" +#else +/* --- Generic fallback --- */ +/* The most portable current time provider is time(), but it only has a + * one second resolution. + */ +#define DUK_USE_DATE_NOW_TIME + +/* The most portable way to figure out local time offset is gmtime(), + * but it's not thread safe so use with caution. + */ +#define DUK_USE_DATE_TZO_GMTIME + +/* Avoid custom date parsing and formatting for portability. */ +#undef DUK_USE_DATE_PRS_STRPTIME +#undef DUK_USE_DATE_FMT_STRFTIME + +/* Rely on C89 headers only; time.h must be here. */ +#include + +#define DUK_USE_OS_STRING "unknown" +#endif /* autodetect platform */ + +/* Shared includes: C89 */ +#include +#include +#include +#include /* varargs */ +#include +#include /* e.g. ptrdiff_t */ +#include +#include + +/* date.h is omitted, and included per platform */ + +/* Shared includes: stdint.h is C99 */ +#if defined(DUK_F_NO_STDINT_H) +/* stdint.h not available */ +#else +/* Technically C99 (C++11) but found in many systems. On some systems + * __STDC_LIMIT_MACROS and __STDC_CONSTANT_MACROS must be defined before + * including stdint.h (see above). + */ +#include +#endif + +#if defined(DUK_F_CPP) +#include /* std::exception */ +#endif + +/* + * Architecture autodetection + */ + +#if defined(DUK_F_X86) +/* --- x86 --- */ +#define DUK_USE_ARCH_STRING "x86" +#if !defined(DUK_USE_BYTEORDER) +#define DUK_USE_BYTEORDER 1 +#endif +/* XXX: This is technically not guaranteed because it's possible to configure + * an x86 to require aligned accesses with Alignment Check (AC) flag. + */ +#if !defined(DUK_USE_ALIGN_BY) +#define DUK_USE_ALIGN_BY 1 +#endif +#define DUK_USE_PACKED_TVAL +#define DUK_F_PACKED_TVAL_PROVIDED +#elif defined(DUK_F_X64) +/* --- x64 --- */ +#define DUK_USE_ARCH_STRING "x64" +#if !defined(DUK_USE_BYTEORDER) +#define DUK_USE_BYTEORDER 1 +#endif +/* XXX: This is technically not guaranteed because it's possible to configure + * an x86 to require aligned accesses with Alignment Check (AC) flag. + */ +#if !defined(DUK_USE_ALIGN_BY) +#define DUK_USE_ALIGN_BY 1 +#endif +#undef DUK_USE_PACKED_TVAL +#define DUK_F_PACKED_TVAL_PROVIDED +#elif defined(DUK_F_X32) +/* --- x32 --- */ +#define DUK_USE_ARCH_STRING "x32" +#if !defined(DUK_USE_BYTEORDER) +#define DUK_USE_BYTEORDER 1 +#endif +/* XXX: This is technically not guaranteed because it's possible to configure + * an x86 to require aligned accesses with Alignment Check (AC) flag. + */ +#if !defined(DUK_USE_ALIGN_BY) +#define DUK_USE_ALIGN_BY 1 +#endif +#define DUK_USE_PACKED_TVAL +#define DUK_F_PACKED_TVAL_PROVIDED +#elif defined(DUK_F_ARM32) +/* --- ARM 32-bit --- */ +#define DUK_USE_ARCH_STRING "arm32" +/* Byte order varies, so rely on autodetect. */ +#if !defined(DUK_USE_ALIGN_BY) +#define DUK_USE_ALIGN_BY 4 +#endif +#define DUK_USE_PACKED_TVAL +#define DUK_F_PACKED_TVAL_PROVIDED +#elif defined(DUK_F_ARM64) +/* --- ARM 64-bit --- */ +#define DUK_USE_ARCH_STRING "arm64" +/* Byte order varies, so rely on autodetect. */ +#if !defined(DUK_USE_ALIGN_BY) +#define DUK_USE_ALIGN_BY 8 +#endif +#undef DUK_USE_PACKED_TVAL +#define DUK_F_PACKED_TVAL_PROVIDED +#elif defined(DUK_F_MIPS32) +/* --- MIPS 32-bit --- */ +#define DUK_USE_ARCH_STRING "mips32" +/* MIPS byte order varies so rely on autodetection. */ +/* Based on 'make checkalign' there are no alignment requirements on + * Linux MIPS except for doubles, which need align by 4. Alignment + * requirements vary based on target though. + */ +#if !defined(DUK_USE_ALIGN_BY) +#define DUK_USE_ALIGN_BY 4 +#endif +#define DUK_USE_PACKED_TVAL +#define DUK_F_PACKED_TVAL_PROVIDED +#elif defined(DUK_F_MIPS64) +/* --- MIPS 64-bit --- */ +#define DUK_USE_ARCH_STRING "mips64" +/* MIPS byte order varies so rely on autodetection. */ +/* Good default is a bit arbitrary because alignment requirements + * depend on target. See https://github.com/svaarala/duktape/issues/102. + */ +#if !defined(DUK_USE_ALIGN_BY) +#define DUK_USE_ALIGN_BY 8 +#endif +#undef DUK_USE_PACKED_TVAL +#define DUK_F_PACKED_TVAL_PROVIDED +#elif defined(DUK_F_PPC32) +/* --- PowerPC 32-bit --- */ +#define DUK_USE_ARCH_STRING "ppc32" +#if !defined(DUK_USE_BYTEORDER) +#define DUK_USE_BYTEORDER 3 +#endif +#if !defined(DUK_USE_ALIGN_BY) +#define DUK_USE_ALIGN_BY 8 +#endif +#define DUK_USE_PACKED_TVAL +#define DUK_F_PACKED_TVAL_PROVIDED +#elif defined(DUK_F_PPC64) +/* --- PowerPC 64-bit --- */ +#define DUK_USE_ARCH_STRING "ppc64" +#if !defined(DUK_USE_BYTEORDER) +#define DUK_USE_BYTEORDER 3 +#endif +#if !defined(DUK_USE_ALIGN_BY) +#define DUK_USE_ALIGN_BY 8 +#endif +#undef DUK_USE_PACKED_TVAL +#define DUK_F_PACKED_TVAL_PROVIDED +#elif defined(DUK_F_SPARC32) +/* --- SPARC 32-bit --- */ +#define DUK_USE_ARCH_STRING "sparc32" +/* SPARC byte order varies so rely on autodetection. */ +#if !defined(DUK_USE_ALIGN_BY) +#define DUK_USE_ALIGN_BY 8 +#endif +#define DUK_USE_PACKED_TVAL +#define DUK_F_PACKED_TVAL_PROVIDED +#elif defined(DUK_F_SPARC64) +/* --- SPARC 64-bit --- */ +#define DUK_USE_ARCH_STRING "sparc64" +/* SPARC byte order varies so rely on autodetection. */ +#if !defined(DUK_USE_ALIGN_BY) +#define DUK_USE_ALIGN_BY 8 +#endif +#undef DUK_USE_PACKED_TVAL +#define DUK_F_PACKED_TVAL_PROVIDED +#elif defined(DUK_F_SUPERH) +/* --- SuperH --- */ +#define DUK_USE_ARCH_STRING "sh" +/* Byte order varies, rely on autodetection. */ +/* Based on 'make checkalign' there are no alignment requirements on + * Linux SH4, but align by 4 is probably a good basic default. + */ +#if !defined(DUK_USE_ALIGN_BY) +#define DUK_USE_ALIGN_BY 4 +#endif +#define DUK_USE_PACKED_TVAL +#define DUK_F_PACKED_TVAL_PROVIDED +#elif defined(DUK_F_M68K) +/* --- Motorola 68k --- */ +#define DUK_USE_ARCH_STRING "m68k" +#if !defined(DUK_USE_BYTEORDER) +#define DUK_USE_BYTEORDER 3 +#endif +#if !defined(DUK_USE_ALIGN_BY) +#define DUK_USE_ALIGN_BY 8 +#endif +#define DUK_USE_PACKED_TVAL +#define DUK_F_PACKED_TVAL_PROVIDED +#elif defined(DUK_F_EMSCRIPTEN) +/* --- Emscripten --- */ +#define DUK_USE_ARCH_STRING "emscripten" +#if !defined(DUK_USE_BYTEORDER) +#define DUK_USE_BYTEORDER 1 +#endif +#if !defined(DUK_USE_ALIGN_BY) +#define DUK_USE_ALIGN_BY 8 +#endif +#undef DUK_USE_PACKED_TVAL +#define DUK_F_PACKED_TVAL_PROVIDED +#else +/* --- Generic --- */ +/* These are necessary wild guesses. */ +#define DUK_USE_ARCH_STRING "generic" +/* Rely on autodetection for byte order, alignment, and packed tval. */ +#endif /* autodetect architecture */ + +/* + * Compiler autodetection + */ + +#if defined(DUK_F_CLANG) +/* --- Clang --- */ +#if defined(DUK_F_C99) || defined(DUK_F_CPP11) +/* C99 / C++11 and above: rely on va_copy() which is required. */ +#define DUK_VA_COPY(dest,src) va_copy(dest,src) +#else +/* Clang: assume we have __va_copy() in non-C99 mode. */ +#define DUK_VA_COPY(dest,src) __va_copy(dest,src) +#endif + +#define DUK_NORETURN(decl) decl __attribute__((noreturn)) + +#if defined(__clang__) && defined(__has_builtin) +#if __has_builtin(__builtin_unreachable) +#define DUK_UNREACHABLE() do { __builtin_unreachable(); } while (0) +#endif +#endif + +#define DUK_USE_BRANCH_HINTS +#define DUK_LIKELY(x) __builtin_expect((x), 1) +#define DUK_UNLIKELY(x) __builtin_expect((x), 0) + +#if defined(DUK_F_C99) || defined(DUK_F_CPP11) +#define DUK_NOINLINE __attribute__((noinline)) +#define DUK_INLINE inline +#define DUK_ALWAYS_INLINE inline __attribute__((always_inline)) +#endif + +#if defined(DUK_F_DLL_BUILD) && defined(DUK_F_WINDOWS) +/* MSVC dllexport/dllimport: appropriate __declspec depends on whether we're + * compiling Duktape or the application. + */ +#if defined(DUK_COMPILING_DUKTAPE) +#define DUK_EXTERNAL_DECL extern __declspec(dllexport) +#define DUK_EXTERNAL __declspec(dllexport) +#else +#define DUK_EXTERNAL_DECL extern __declspec(dllimport) +#define DUK_EXTERNAL should_not_happen +#endif +#if defined(DUK_SINGLE_FILE) +#define DUK_INTERNAL_DECL static +#define DUK_INTERNAL static +#else +#define DUK_INTERNAL_DECL extern +#define DUK_INTERNAL /*empty*/ +#endif +#define DUK_LOCAL_DECL static +#define DUK_LOCAL static +#else +#define DUK_EXTERNAL_DECL __attribute__ ((visibility("default"))) extern +#define DUK_EXTERNAL __attribute__ ((visibility("default"))) +#if defined(DUK_SINGLE_FILE) +#define DUK_INTERNAL_DECL static +#define DUK_INTERNAL static +#else +#define DUK_INTERNAL_DECL __attribute__ ((visibility("hidden"))) extern +#define DUK_INTERNAL __attribute__ ((visibility("hidden"))) +#endif +#define DUK_LOCAL_DECL static +#define DUK_LOCAL static +#endif + +#if defined(DUK_F_CPP) +#define DUK_USE_COMPILER_STRING "clang" +#else +#define DUK_USE_COMPILER_STRING "clang" +#endif + +#undef DUK_USE_VARIADIC_MACROS +#if defined(DUK_F_C99) || defined(DUK_F_CPP11) +#define DUK_USE_VARIADIC_MACROS +#endif + +#define DUK_USE_UNION_INITIALIZERS + +#undef DUK_USE_FLEX_C99 +#undef DUK_USE_FLEX_ZEROSIZE +#undef DUK_USE_FLEX_ONESIZE +#if defined(DUK_F_C99) +#define DUK_USE_FLEX_C99 +#else +#define DUK_USE_FLEX_ZEROSIZE +#endif + +#undef DUK_USE_GCC_PRAGMAS +#define DUK_USE_PACK_CLANG_ATTR +#elif defined(DUK_F_GCC) +/* --- GCC --- */ +#if defined(DUK_F_C99) || defined(DUK_F_CPP11) +/* C99 / C++11 and above: rely on va_copy() which is required. */ +#define DUK_VA_COPY(dest,src) va_copy(dest,src) +#else +/* GCC: assume we have __va_copy() in non-C99 mode. */ +#define DUK_VA_COPY(dest,src) __va_copy(dest,src) +#endif + +#if defined(DUK_F_GCC_VERSION) && (DUK_F_GCC_VERSION >= 20500L) +/* since gcc-2.5 */ +#define DUK_NORETURN(decl) decl __attribute__((noreturn)) +#endif + +#if defined(DUK_F_GCC_VERSION) && (DUK_F_GCC_VERSION >= 40500L) +/* since gcc-4.5 */ +#define DUK_UNREACHABLE() do { __builtin_unreachable(); } while (0) +#endif + +#define DUK_USE_BRANCH_HINTS +#if defined(DUK_F_GCC_VERSION) && (DUK_F_GCC_VERSION >= 40500L) +/* GCC: test not very accurate; enable only in relatively recent builds + * because of bugs in gcc-4.4 (http://lists.debian.org/debian-gcc/2010/04/msg00000.html) + */ +#define DUK_LIKELY(x) __builtin_expect((x), 1) +#define DUK_UNLIKELY(x) __builtin_expect((x), 0) +#endif + +#if (defined(DUK_F_C99) || defined(DUK_F_CPP11)) && \ + defined(DUK_F_GCC_VERSION) && (DUK_F_GCC_VERSION >= 30101) +#define DUK_NOINLINE __attribute__((noinline)) +#define DUK_INLINE inline +#define DUK_ALWAYS_INLINE inline __attribute__((always_inline)) +#endif + +#if defined(DUK_F_DLL_BUILD) && defined(DUK_F_WINDOWS) +/* MSVC dllexport/dllimport: appropriate __declspec depends on whether we're + * compiling Duktape or the application. + */ +#if defined(DUK_COMPILING_DUKTAPE) +#define DUK_EXTERNAL_DECL extern __declspec(dllexport) +#define DUK_EXTERNAL __declspec(dllexport) +#else +#define DUK_EXTERNAL_DECL extern __declspec(dllimport) +#define DUK_EXTERNAL should_not_happen +#endif +#if defined(DUK_SINGLE_FILE) +#define DUK_INTERNAL_DECL static +#define DUK_INTERNAL static +#else +#define DUK_INTERNAL_DECL extern +#define DUK_INTERNAL /*empty*/ +#endif +#define DUK_LOCAL_DECL static +#define DUK_LOCAL static +#elif defined(DUK_F_GCC_VERSION) && (DUK_F_GCC_VERSION >= 40000) +#define DUK_EXTERNAL_DECL __attribute__ ((visibility("default"))) extern +#define DUK_EXTERNAL __attribute__ ((visibility("default"))) +#if defined(DUK_SINGLE_FILE) +#define DUK_INTERNAL_DECL static +#define DUK_INTERNAL static +#else +#define DUK_INTERNAL_DECL __attribute__ ((visibility("hidden"))) extern +#define DUK_INTERNAL __attribute__ ((visibility("hidden"))) +#endif +#define DUK_LOCAL_DECL static +#define DUK_LOCAL static +#endif + +#if defined(DUK_F_MINGW) +#if defined(DUK_F_CPP) +#define DUK_USE_COMPILER_STRING "mingw++" +#else +#define DUK_USE_COMPILER_STRING "mingw" +#endif +#else +#if defined(DUK_F_CPP) +#define DUK_USE_COMPILER_STRING "g++" +#else +#define DUK_USE_COMPILER_STRING "gcc" +#endif +#endif + +#undef DUK_USE_VARIADIC_MACROS +#if defined(DUK_F_C99) || (defined(DUK_F_CPP11) && defined(__GNUC__)) +#define DUK_USE_VARIADIC_MACROS +#endif + +#define DUK_USE_UNION_INITIALIZERS + +#undef DUK_USE_FLEX_C99 +#undef DUK_USE_FLEX_ZEROSIZE +#undef DUK_USE_FLEX_ONESIZE +#if defined(DUK_F_C99) +#define DUK_USE_FLEX_C99 +#else +#define DUK_USE_FLEX_ZEROSIZE +#endif + +#if defined(DUK_F_GCC_VERSION) && (DUK_F_GCC_VERSION >= 40600) +#define DUK_USE_GCC_PRAGMAS +#else +#undef DUK_USE_GCC_PRAGMAS +#endif + +#define DUK_USE_PACK_GCC_ATTR +#elif defined(DUK_F_MSVC) +/* --- MSVC --- */ +/* http://msdn.microsoft.com/en-us/library/aa235362(VS.60).aspx */ +#define DUK_NORETURN(decl) __declspec(noreturn) decl + +/* XXX: DUK_UNREACHABLE for msvc? */ + +#undef DUK_USE_BRANCH_HINTS + +/* XXX: DUK_LIKELY, DUK_UNLIKELY for msvc? */ +/* XXX: DUK_NOINLINE, DUK_INLINE, DUK_ALWAYS_INLINE for msvc? */ + +#if defined(DUK_F_DLL_BUILD) && defined(DUK_F_WINDOWS) +/* MSVC dllexport/dllimport: appropriate __declspec depends on whether we're + * compiling Duktape or the application. + */ +#if defined(DUK_COMPILING_DUKTAPE) +#define DUK_EXTERNAL_DECL extern __declspec(dllexport) +#define DUK_EXTERNAL __declspec(dllexport) +#else +#define DUK_EXTERNAL_DECL extern __declspec(dllimport) +#define DUK_EXTERNAL should_not_happen +#endif +#if defined(DUK_SINGLE_FILE) +#define DUK_INTERNAL_DECL static +#define DUK_INTERNAL static +#else +#define DUK_INTERNAL_DECL extern +#define DUK_INTERNAL /*empty*/ +#endif +#define DUK_LOCAL_DECL static +#define DUK_LOCAL static +#endif + +#if defined(DUK_F_CPP) +#define DUK_USE_COMPILER_STRING "msvc++" +#else +#define DUK_USE_COMPILER_STRING "msvc" +#endif + +#undef DUK_USE_VARIADIC_MACROS +#if defined(DUK_F_C99) +#define DUK_USE_VARIADIC_MACROS +#elif defined(_MSC_VER) && (_MSC_VER >= 1400) +/* VS2005+ should have variadic macros even when they're not C99. */ +#define DUK_USE_VARIADIC_MACROS +#endif + +#undef DUK_USE_UNION_INITIALIZERS +#if defined(_MSC_VER) && (_MSC_VER >= 1800) +/* VS2013+ supports union initializers but there's a bug involving union-inside-struct: + * https://connect.microsoft.com/VisualStudio/feedback/details/805981 + * The bug was fixed (at least) in VS2015 so check for VS2015 for now: + * https://blogs.msdn.microsoft.com/vcblog/2015/07/01/c-compiler-front-end-fixes-in-vs2015/ + * Manually tested using VS2013, CL reports 18.00.31101, so enable for VS2013 too. + */ +#define DUK_USE_UNION_INITIALIZERS +#endif + +#undef DUK_USE_FLEX_C99 +#undef DUK_USE_FLEX_ZEROSIZE +#undef DUK_USE_FLEX_ONESIZE +#if defined(DUK_F_C99) +#define DUK_USE_FLEX_C99 +#else +#define DUK_USE_FLEX_ZEROSIZE +#endif + +#undef DUK_USE_GCC_PRAGMAS + +#define DUK_USE_PACK_MSVC_PRAGMA + +/* These have been tested from VS2008 onwards; may work in older VS versions + * too but not enabled by default. + */ +#if defined(_MSC_VER) && (_MSC_VER >= 1500) +#define DUK_NOINLINE __declspec(noinline) +#define DUK_INLINE __inline +#define DUK_ALWAYS_INLINE __forceinline +#endif + +#if defined(_MSC_VER) && (_MSC_VER >= 1900) +#define DUK_SNPRINTF snprintf +#define DUK_VSNPRINTF vsnprintf +#else +/* (v)snprintf() is missing before MSVC 2015. Note that _(v)snprintf() does + * NOT NUL terminate on truncation, but Duktape code never assumes that. + * http://stackoverflow.com/questions/2915672/snprintf-and-visual-studio-2010 + */ +#define DUK_SNPRINTF _snprintf +#define DUK_VSNPRINTF _vsnprintf +#endif +#elif defined(DUK_F_EMSCRIPTEN) +/* --- Emscripten --- */ +#define DUK_NORETURN(decl) decl __attribute__((noreturn)) + +#if defined(__clang__) && defined(__has_builtin) +#if __has_builtin(__builtin_unreachable) +#define DUK_UNREACHABLE() do { __builtin_unreachable(); } while (0) +#endif +#endif + +#define DUK_USE_BRANCH_HINTS +#define DUK_LIKELY(x) __builtin_expect((x), 1) +#define DUK_UNLIKELY(x) __builtin_expect((x), 0) + +#if defined(DUK_F_C99) || defined(DUK_F_CPP11) +#define DUK_NOINLINE __attribute__((noinline)) +#define DUK_INLINE inline +#define DUK_ALWAYS_INLINE inline __attribute__((always_inline)) +#endif + +#define DUK_EXTERNAL_DECL __attribute__ ((visibility("default"))) extern +#define DUK_EXTERNAL __attribute__ ((visibility("default"))) +#if defined(DUK_SINGLE_FILE) +#define DUK_INTERNAL_DECL static +#define DUK_INTERNAL static +#else +#define DUK_INTERNAL_DECL __attribute__ ((visibility("hidden"))) extern +#define DUK_INTERNAL __attribute__ ((visibility("hidden"))) +#endif +#define DUK_LOCAL_DECL static +#define DUK_LOCAL static + +#define DUK_USE_COMPILER_STRING "emscripten" + +#undef DUK_USE_VARIADIC_MACROS +#if defined(DUK_F_C99) || defined(DUK_F_CPP11) +#define DUK_USE_VARIADIC_MACROS +#endif + +#define DUK_USE_UNION_INITIALIZERS + +#undef DUK_USE_FLEX_C99 +#undef DUK_USE_FLEX_ZEROSIZE +#undef DUK_USE_FLEX_ONESIZE +#if defined(DUK_F_C99) +#define DUK_USE_FLEX_C99 +#else +#define DUK_USE_FLEX_ZEROSIZE +#endif + +#undef DUK_USE_GCC_PRAGMAS +#define DUK_USE_PACK_CLANG_ATTR +#elif defined(DUK_F_TINYC) +/* --- TinyC --- */ +#undef DUK_USE_BRANCH_HINTS + +#if defined(DUK_F_CPP) +#define DUK_USE_COMPILER_STRING "tinyc++" +#else +#define DUK_USE_COMPILER_STRING "tinyc" +#endif + +/* http://bellard.org/tcc/tcc-doc.html#SEC7 */ +#define DUK_USE_VARIADIC_MACROS + +#define DUK_USE_UNION_INITIALIZERS + +/* Most portable, wastes space */ +#define DUK_USE_FLEX_ONESIZE + +/* Most portable, potentially wastes space */ +#define DUK_USE_PACK_DUMMY_MEMBER +#elif defined(DUK_F_VBCC) +/* --- VBCC --- */ +#undef DUK_USE_BRANCH_HINTS + +#if defined(DUK_F_CPP) +#define DUK_USE_COMPILER_STRING "vbcc-c++" +#else +#define DUK_USE_COMPILER_STRING "vbcc" +#endif + +#undef DUK_USE_VARIADIC_MACROS +#if defined(DUK_F_C99) || defined(DUK_F_CPP11) +#define DUK_USE_VARIADIC_MACROS +#endif + +/* VBCC supports C99 so check only for C99 for union initializer support. + * Designated union initializers would possibly work even without a C99 check. + */ +#undef DUK_USE_UNION_INITIALIZERS +#if defined(DUK_F_C99) +#define DUK_USE_UNION_INITIALIZERS +#endif + +#define DUK_USE_FLEX_ZEROSIZE +#define DUK_USE_PACK_DUMMY_MEMBER +#elif defined(DUK_F_BCC) +/* --- Bruce's C compiler --- */ +#undef DUK_USE_BRANCH_HINTS + +#if defined(DUK_F_CPP) +#define DUK_USE_COMPILER_STRING "bcc++" +#else +#define DUK_USE_COMPILER_STRING "bcc" +#endif + +/* Most portable */ +#undef DUK_USE_VARIADIC_MACROS + +/* Most portable, wastes space */ +#undef DUK_USE_UNION_INITIALIZERS + +/* Most portable, wastes space */ +#define DUK_USE_FLEX_ONESIZE + +/* Most portable, potentially wastes space */ +#define DUK_USE_PACK_DUMMY_MEMBER + +/* BCC, assume we're on x86. */ +#if !defined(DUK_USE_BYTEORDER) +#define DUK_USE_BYTEORDER 1 +#endif +#else +/* --- Generic --- */ +#undef DUK_USE_BRANCH_HINTS + +#if defined(DUK_F_CPP) +#define DUK_USE_COMPILER_STRING "generic-c++" +#else +#define DUK_USE_COMPILER_STRING "generic" +#endif + +#undef DUK_USE_VARIADIC_MACROS +#if defined(DUK_F_C99) || defined(DUK_F_CPP11) +#define DUK_USE_VARIADIC_MACROS +#endif + +/* C++ doesn't have standard designated union initializers ({ .foo = 1 }). */ +#undef DUK_USE_UNION_INITIALIZERS +#if defined(DUK_F_C99) +#define DUK_USE_UNION_INITIALIZERS +#endif + +/* Most portable, wastes space */ +#define DUK_USE_FLEX_ONESIZE + +/* Most portable, potentially wastes space */ +#define DUK_USE_PACK_DUMMY_MEMBER +#endif /* autodetect compiler */ + +/* uclibc */ +#if defined(__UCLIBC__) +#define DUK_F_UCLIBC +#endif + +/* + * Wrapper typedefs and constants for integer types, also sanity check types. + * + * C99 typedefs are quite good but not always available, and we want to avoid + * forcibly redefining the C99 typedefs. So, there are Duktape wrappers for + * all C99 typedefs and Duktape code should only use these typedefs. Type + * detection when C99 is not supported is best effort and may end up detecting + * some types incorrectly. + * + * Pointer sizes are a portability problem: pointers to different types may + * have a different size and function pointers are very difficult to manage + * portably. + * + * http://en.wikipedia.org/wiki/C_data_types#Fixed-width_integer_types + * + * Note: there's an interesting corner case when trying to define minimum + * signed integer value constants which leads to the current workaround of + * defining e.g. -0x80000000 as (-0x7fffffffL - 1L). See doc/code-issues.txt + * for a longer discussion. + * + * Note: avoid typecasts and computations in macro integer constants as they + * can then no longer be used in macro relational expressions (such as + * #if DUK_SIZE_MAX < 0xffffffffUL). There is internal code which relies on + * being able to compare DUK_SIZE_MAX against a limit. + */ + +/* XXX: add feature options to force basic types from outside? */ + +#if !defined(INT_MAX) +#error INT_MAX not defined +#endif + +/* Check that architecture is two's complement, standard C allows e.g. + * INT_MIN to be -2**31+1 (instead of -2**31). + */ +#if defined(INT_MAX) && defined(INT_MIN) +#if INT_MAX != -(INT_MIN + 1) +#error platform does not seem complement of two +#endif +#else +#error cannot check complement of two +#endif + +/* Pointer size determination based on __WORDSIZE or architecture when + * that's not available. + */ +#if defined(DUK_F_X86) || defined(DUK_F_X32) || \ + defined(DUK_F_M68K) || defined(DUK_F_PPC32) || \ + defined(DUK_F_BCC) || \ + (defined(__WORDSIZE) && (__WORDSIZE == 32)) +#define DUK_F_32BIT_PTRS +#elif defined(DUK_F_X64) || \ + (defined(__WORDSIZE) && (__WORDSIZE == 64)) +#define DUK_F_64BIT_PTRS +#else +/* not sure, not needed with C99 anyway */ +#endif + +/* Intermediate define for 'have inttypes.h' */ +#undef DUK_F_HAVE_INTTYPES +#if defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 199901L) && \ + !(defined(DUK_F_AMIGAOS) && defined(DUK_F_VBCC)) +/* vbcc + AmigaOS has C99 but no inttypes.h */ +#define DUK_F_HAVE_INTTYPES +#elif defined(__cplusplus) && (__cplusplus >= 201103L) +/* C++11 apparently ratified stdint.h */ +#define DUK_F_HAVE_INTTYPES +#endif + +/* Basic integer typedefs and limits, preferably from inttypes.h, otherwise + * through automatic detection. + */ +#if defined(DUK_F_HAVE_INTTYPES) +/* C99 or compatible */ + +#define DUK_F_HAVE_64BIT +#include + +typedef uint8_t duk_uint8_t; +typedef int8_t duk_int8_t; +typedef uint16_t duk_uint16_t; +typedef int16_t duk_int16_t; +typedef uint32_t duk_uint32_t; +typedef int32_t duk_int32_t; +typedef uint64_t duk_uint64_t; +typedef int64_t duk_int64_t; +typedef uint_least8_t duk_uint_least8_t; +typedef int_least8_t duk_int_least8_t; +typedef uint_least16_t duk_uint_least16_t; +typedef int_least16_t duk_int_least16_t; +typedef uint_least32_t duk_uint_least32_t; +typedef int_least32_t duk_int_least32_t; +typedef uint_least64_t duk_uint_least64_t; +typedef int_least64_t duk_int_least64_t; +typedef uint_fast8_t duk_uint_fast8_t; +typedef int_fast8_t duk_int_fast8_t; +typedef uint_fast16_t duk_uint_fast16_t; +typedef int_fast16_t duk_int_fast16_t; +typedef uint_fast32_t duk_uint_fast32_t; +typedef int_fast32_t duk_int_fast32_t; +typedef uint_fast64_t duk_uint_fast64_t; +typedef int_fast64_t duk_int_fast64_t; +typedef uintptr_t duk_uintptr_t; +typedef intptr_t duk_intptr_t; +typedef uintmax_t duk_uintmax_t; +typedef intmax_t duk_intmax_t; + +#define DUK_UINT8_MIN 0 +#define DUK_UINT8_MAX UINT8_MAX +#define DUK_INT8_MIN INT8_MIN +#define DUK_INT8_MAX INT8_MAX +#define DUK_UINT_LEAST8_MIN 0 +#define DUK_UINT_LEAST8_MAX UINT_LEAST8_MAX +#define DUK_INT_LEAST8_MIN INT_LEAST8_MIN +#define DUK_INT_LEAST8_MAX INT_LEAST8_MAX +#define DUK_UINT_FAST8_MIN 0 +#define DUK_UINT_FAST8_MAX UINT_FAST8_MAX +#define DUK_INT_FAST8_MIN INT_FAST8_MIN +#define DUK_INT_FAST8_MAX INT_FAST8_MAX +#define DUK_UINT16_MIN 0 +#define DUK_UINT16_MAX UINT16_MAX +#define DUK_INT16_MIN INT16_MIN +#define DUK_INT16_MAX INT16_MAX +#define DUK_UINT_LEAST16_MIN 0 +#define DUK_UINT_LEAST16_MAX UINT_LEAST16_MAX +#define DUK_INT_LEAST16_MIN INT_LEAST16_MIN +#define DUK_INT_LEAST16_MAX INT_LEAST16_MAX +#define DUK_UINT_FAST16_MIN 0 +#define DUK_UINT_FAST16_MAX UINT_FAST16_MAX +#define DUK_INT_FAST16_MIN INT_FAST16_MIN +#define DUK_INT_FAST16_MAX INT_FAST16_MAX +#define DUK_UINT32_MIN 0 +#define DUK_UINT32_MAX UINT32_MAX +#define DUK_INT32_MIN INT32_MIN +#define DUK_INT32_MAX INT32_MAX +#define DUK_UINT_LEAST32_MIN 0 +#define DUK_UINT_LEAST32_MAX UINT_LEAST32_MAX +#define DUK_INT_LEAST32_MIN INT_LEAST32_MIN +#define DUK_INT_LEAST32_MAX INT_LEAST32_MAX +#define DUK_UINT_FAST32_MIN 0 +#define DUK_UINT_FAST32_MAX UINT_FAST32_MAX +#define DUK_INT_FAST32_MIN INT_FAST32_MIN +#define DUK_INT_FAST32_MAX INT_FAST32_MAX +#define DUK_UINT64_MIN 0 +#define DUK_UINT64_MAX UINT64_MAX +#define DUK_INT64_MIN INT64_MIN +#define DUK_INT64_MAX INT64_MAX +#define DUK_UINT_LEAST64_MIN 0 +#define DUK_UINT_LEAST64_MAX UINT_LEAST64_MAX +#define DUK_INT_LEAST64_MIN INT_LEAST64_MIN +#define DUK_INT_LEAST64_MAX INT_LEAST64_MAX +#define DUK_UINT_FAST64_MIN 0 +#define DUK_UINT_FAST64_MAX UINT_FAST64_MAX +#define DUK_INT_FAST64_MIN INT_FAST64_MIN +#define DUK_INT_FAST64_MAX INT_FAST64_MAX + +#define DUK_UINTPTR_MIN 0 +#define DUK_UINTPTR_MAX UINTPTR_MAX +#define DUK_INTPTR_MIN INTPTR_MIN +#define DUK_INTPTR_MAX INTPTR_MAX + +#define DUK_UINTMAX_MIN 0 +#define DUK_UINTMAX_MAX UINTMAX_MAX +#define DUK_INTMAX_MIN INTMAX_MIN +#define DUK_INTMAX_MAX INTMAX_MAX + +#define DUK_SIZE_MIN 0 +#define DUK_SIZE_MAX SIZE_MAX +#undef DUK_SIZE_MAX_COMPUTED + +#else /* C99 types */ + +/* When C99 types are not available, we use heuristic detection to get + * the basic 8, 16, 32, and (possibly) 64 bit types. The fast/least + * types are then assumed to be exactly the same for now: these could + * be improved per platform but C99 types are very often now available. + * 64-bit types are not available on all platforms; this is OK at least + * on 32-bit platforms. + * + * This detection code is necessarily a bit hacky and can provide typedefs + * and defines that won't work correctly on some exotic platform. + */ + +#if (defined(CHAR_BIT) && (CHAR_BIT == 8)) || \ + (defined(UCHAR_MAX) && (UCHAR_MAX == 255)) +typedef unsigned char duk_uint8_t; +typedef signed char duk_int8_t; +#else +#error cannot detect 8-bit type +#endif + +#if defined(USHRT_MAX) && (USHRT_MAX == 65535UL) +typedef unsigned short duk_uint16_t; +typedef signed short duk_int16_t; +#elif defined(UINT_MAX) && (UINT_MAX == 65535UL) +/* On some platforms int is 16-bit but long is 32-bit (e.g. PureC) */ +typedef unsigned int duk_uint16_t; +typedef signed int duk_int16_t; +#else +#error cannot detect 16-bit type +#endif + +#if defined(UINT_MAX) && (UINT_MAX == 4294967295UL) +typedef unsigned int duk_uint32_t; +typedef signed int duk_int32_t; +#elif defined(ULONG_MAX) && (ULONG_MAX == 4294967295UL) +/* On some platforms int is 16-bit but long is 32-bit (e.g. PureC) */ +typedef unsigned long duk_uint32_t; +typedef signed long duk_int32_t; +#else +#error cannot detect 32-bit type +#endif + +/* 64-bit type detection is a bit tricky. + * + * ULLONG_MAX is a standard define. __LONG_LONG_MAX__ and __ULONG_LONG_MAX__ + * are used by at least GCC (even if system headers don't provide ULLONG_MAX). + * Some GCC variants may provide __LONG_LONG_MAX__ but not __ULONG_LONG_MAX__. + * + * ULL / LL constants are rejected / warned about by some compilers, even if + * the compiler has a 64-bit type and the compiler/system headers provide an + * unsupported constant (ULL/LL)! Try to avoid using ULL / LL constants. + * As a side effect we can only check that e.g. ULONG_MAX is larger than 32 + * bits but can't be sure it is exactly 64 bits. Self tests will catch such + * cases. + */ +#undef DUK_F_HAVE_64BIT +#if !defined(DUK_F_HAVE_64BIT) && defined(ULONG_MAX) +#if (ULONG_MAX > 4294967295UL) +#define DUK_F_HAVE_64BIT +typedef unsigned long duk_uint64_t; +typedef signed long duk_int64_t; +#endif +#endif +#if !defined(DUK_F_HAVE_64BIT) && defined(ULLONG_MAX) +#if (ULLONG_MAX > 4294967295UL) +#define DUK_F_HAVE_64BIT +typedef unsigned long long duk_uint64_t; +typedef signed long long duk_int64_t; +#endif +#endif +#if !defined(DUK_F_HAVE_64BIT) && defined(__ULONG_LONG_MAX__) +#if (__ULONG_LONG_MAX__ > 4294967295UL) +#define DUK_F_HAVE_64BIT +typedef unsigned long long duk_uint64_t; +typedef signed long long duk_int64_t; +#endif +#endif +#if !defined(DUK_F_HAVE_64BIT) && defined(__LONG_LONG_MAX__) +#if (__LONG_LONG_MAX__ > 2147483647L) +#define DUK_F_HAVE_64BIT +typedef unsigned long long duk_uint64_t; +typedef signed long long duk_int64_t; +#endif +#endif +#if !defined(DUK_F_HAVE_64BIT) && \ + (defined(DUK_F_MINGW) || defined(DUK_F_MSVC)) +/* Both MinGW and MSVC have a 64-bit type. */ +#define DUK_F_HAVE_64BIT +typedef unsigned long duk_uint64_t; +typedef signed long duk_int64_t; +#endif +#if !defined(DUK_F_HAVE_64BIT) +/* cannot detect 64-bit type, not always needed so don't error */ +#endif + +typedef duk_uint8_t duk_uint_least8_t; +typedef duk_int8_t duk_int_least8_t; +typedef duk_uint16_t duk_uint_least16_t; +typedef duk_int16_t duk_int_least16_t; +typedef duk_uint32_t duk_uint_least32_t; +typedef duk_int32_t duk_int_least32_t; +typedef duk_uint8_t duk_uint_fast8_t; +typedef duk_int8_t duk_int_fast8_t; +typedef duk_uint16_t duk_uint_fast16_t; +typedef duk_int16_t duk_int_fast16_t; +typedef duk_uint32_t duk_uint_fast32_t; +typedef duk_int32_t duk_int_fast32_t; +#if defined(DUK_F_HAVE_64BIT) +typedef duk_uint64_t duk_uint_least64_t; +typedef duk_int64_t duk_int_least64_t; +typedef duk_uint64_t duk_uint_fast64_t; +typedef duk_int64_t duk_int_fast64_t; +#endif +#if defined(DUK_F_HAVE_64BIT) +typedef duk_uint64_t duk_uintmax_t; +typedef duk_int64_t duk_intmax_t; +#else +typedef duk_uint32_t duk_uintmax_t; +typedef duk_int32_t duk_intmax_t; +#endif + +/* Note: the funny looking computations for signed minimum 16-bit, 32-bit, and + * 64-bit values are intentional as the obvious forms (e.g. -0x80000000L) are + * -not- portable. See code-issues.txt for a detailed discussion. + */ +#define DUK_UINT8_MIN 0UL +#define DUK_UINT8_MAX 0xffUL +#define DUK_INT8_MIN (-0x80L) +#define DUK_INT8_MAX 0x7fL +#define DUK_UINT_LEAST8_MIN 0UL +#define DUK_UINT_LEAST8_MAX 0xffUL +#define DUK_INT_LEAST8_MIN (-0x80L) +#define DUK_INT_LEAST8_MAX 0x7fL +#define DUK_UINT_FAST8_MIN 0UL +#define DUK_UINT_FAST8_MAX 0xffUL +#define DUK_INT_FAST8_MIN (-0x80L) +#define DUK_INT_FAST8_MAX 0x7fL +#define DUK_UINT16_MIN 0UL +#define DUK_UINT16_MAX 0xffffUL +#define DUK_INT16_MIN (-0x7fffL - 1L) +#define DUK_INT16_MAX 0x7fffL +#define DUK_UINT_LEAST16_MIN 0UL +#define DUK_UINT_LEAST16_MAX 0xffffUL +#define DUK_INT_LEAST16_MIN (-0x7fffL - 1L) +#define DUK_INT_LEAST16_MAX 0x7fffL +#define DUK_UINT_FAST16_MIN 0UL +#define DUK_UINT_FAST16_MAX 0xffffUL +#define DUK_INT_FAST16_MIN (-0x7fffL - 1L) +#define DUK_INT_FAST16_MAX 0x7fffL +#define DUK_UINT32_MIN 0UL +#define DUK_UINT32_MAX 0xffffffffUL +#define DUK_INT32_MIN (-0x7fffffffL - 1L) +#define DUK_INT32_MAX 0x7fffffffL +#define DUK_UINT_LEAST32_MIN 0UL +#define DUK_UINT_LEAST32_MAX 0xffffffffUL +#define DUK_INT_LEAST32_MIN (-0x7fffffffL - 1L) +#define DUK_INT_LEAST32_MAX 0x7fffffffL +#define DUK_UINT_FAST32_MIN 0UL +#define DUK_UINT_FAST32_MAX 0xffffffffUL +#define DUK_INT_FAST32_MIN (-0x7fffffffL - 1L) +#define DUK_INT_FAST32_MAX 0x7fffffffL + +/* 64-bit constants. Since LL / ULL constants are not always available, + * use computed values. These values can't be used in preprocessor + * comparisons; flag them as such. + */ +#if defined(DUK_F_HAVE_64BIT) +#define DUK_UINT64_MIN ((duk_uint64_t) 0) +#define DUK_UINT64_MAX ((duk_uint64_t) -1) +#define DUK_INT64_MIN ((duk_int64_t) (~(DUK_UINT64_MAX >> 1))) +#define DUK_INT64_MAX ((duk_int64_t) (DUK_UINT64_MAX >> 1)) +#define DUK_UINT_LEAST64_MIN DUK_UINT64_MIN +#define DUK_UINT_LEAST64_MAX DUK_UINT64_MAX +#define DUK_INT_LEAST64_MIN DUK_INT64_MIN +#define DUK_INT_LEAST64_MAX DUK_INT64_MAX +#define DUK_UINT_FAST64_MIN DUK_UINT64_MIN +#define DUK_UINT_FAST64_MAX DUK_UINT64_MAX +#define DUK_INT_FAST64_MIN DUK_INT64_MIN +#define DUK_INT_FAST64_MAX DUK_INT64_MAX +#define DUK_UINT64_MIN_COMPUTED +#define DUK_UINT64_MAX_COMPUTED +#define DUK_INT64_MIN_COMPUTED +#define DUK_INT64_MAX_COMPUTED +#define DUK_UINT_LEAST64_MIN_COMPUTED +#define DUK_UINT_LEAST64_MAX_COMPUTED +#define DUK_INT_LEAST64_MIN_COMPUTED +#define DUK_INT_LEAST64_MAX_COMPUTED +#define DUK_UINT_FAST64_MIN_COMPUTED +#define DUK_UINT_FAST64_MAX_COMPUTED +#define DUK_INT_FAST64_MIN_COMPUTED +#define DUK_INT_FAST64_MAX_COMPUTED +#endif + +#if defined(DUK_F_HAVE_64BIT) +#define DUK_UINTMAX_MIN DUK_UINT64_MIN +#define DUK_UINTMAX_MAX DUK_UINT64_MAX +#define DUK_INTMAX_MIN DUK_INT64_MIN +#define DUK_INTMAX_MAX DUK_INT64_MAX +#define DUK_UINTMAX_MIN_COMPUTED +#define DUK_UINTMAX_MAX_COMPUTED +#define DUK_INTMAX_MIN_COMPUTED +#define DUK_INTMAX_MAX_COMPUTED +#else +#define DUK_UINTMAX_MIN 0UL +#define DUK_UINTMAX_MAX 0xffffffffUL +#define DUK_INTMAX_MIN (-0x7fffffffL - 1L) +#define DUK_INTMAX_MAX 0x7fffffffL +#endif + +/* This detection is not very reliable. */ +#if defined(DUK_F_32BIT_PTRS) +typedef duk_int32_t duk_intptr_t; +typedef duk_uint32_t duk_uintptr_t; +#define DUK_UINTPTR_MIN DUK_UINT32_MIN +#define DUK_UINTPTR_MAX DUK_UINT32_MAX +#define DUK_INTPTR_MIN DUK_INT32_MIN +#define DUK_INTPTR_MAX DUK_INT32_MAX +#elif defined(DUK_F_64BIT_PTRS) && defined(DUK_F_HAVE_64BIT) +typedef duk_int64_t duk_intptr_t; +typedef duk_uint64_t duk_uintptr_t; +#define DUK_UINTPTR_MIN DUK_UINT64_MIN +#define DUK_UINTPTR_MAX DUK_UINT64_MAX +#define DUK_INTPTR_MIN DUK_INT64_MIN +#define DUK_INTPTR_MAX DUK_INT64_MAX +#define DUK_UINTPTR_MIN_COMPUTED +#define DUK_UINTPTR_MAX_COMPUTED +#define DUK_INTPTR_MIN_COMPUTED +#define DUK_INTPTR_MAX_COMPUTED +#else +#error cannot determine intptr type +#endif + +/* SIZE_MAX may be missing so use an approximate value for it. */ +#undef DUK_SIZE_MAX_COMPUTED +#if !defined(SIZE_MAX) +#define DUK_SIZE_MAX_COMPUTED +#define SIZE_MAX ((size_t) (-1)) +#endif +#define DUK_SIZE_MIN 0 +#define DUK_SIZE_MAX SIZE_MAX + +#endif /* C99 types */ + +/* A few types are assumed to always exist. */ +typedef size_t duk_size_t; +typedef ptrdiff_t duk_ptrdiff_t; + +/* The best type for an "all around int" in Duktape internals is "at least + * 32 bit signed integer" which is most convenient. Same for unsigned type. + * Prefer 'int' when large enough, as it is almost always a convenient type. + */ +#if defined(UINT_MAX) && (UINT_MAX >= 0xffffffffUL) +typedef int duk_int_t; +typedef unsigned int duk_uint_t; +#define DUK_INT_MIN INT_MIN +#define DUK_INT_MAX INT_MAX +#define DUK_UINT_MIN 0 +#define DUK_UINT_MAX UINT_MAX +#else +typedef duk_int_fast32_t duk_int_t; +typedef duk_uint_fast32_t duk_uint_t; +#define DUK_INT_MIN DUK_INT_FAST32_MIN +#define DUK_INT_MAX DUK_INT_FAST32_MAX +#define DUK_UINT_MIN DUK_UINT_FAST32_MIN +#define DUK_UINT_MAX DUK_UINT_FAST32_MAX +#endif + +/* Same as 'duk_int_t' but guaranteed to be a 'fast' variant if this + * distinction matters for the CPU. These types are used mainly in the + * executor where it might really matter. + */ +typedef duk_int_fast32_t duk_int_fast_t; +typedef duk_uint_fast32_t duk_uint_fast_t; +#define DUK_INT_FAST_MIN DUK_INT_FAST32_MIN +#define DUK_INT_FAST_MAX DUK_INT_FAST32_MAX +#define DUK_UINT_FAST_MIN DUK_UINT_FAST32_MIN +#define DUK_UINT_FAST_MAX DUK_UINT_FAST32_MAX + +/* Small integers (16 bits or more) can fall back to the 'int' type, but + * have a typedef so they are marked "small" explicitly. + */ +typedef int duk_small_int_t; +typedef unsigned int duk_small_uint_t; +#define DUK_SMALL_INT_MIN INT_MIN +#define DUK_SMALL_INT_MAX INT_MAX +#define DUK_SMALL_UINT_MIN 0 +#define DUK_SMALL_UINT_MAX UINT_MAX + +/* Fast variants of small integers, again for really fast paths like the + * executor. + */ +typedef duk_int_fast16_t duk_small_int_fast_t; +typedef duk_uint_fast16_t duk_small_uint_fast_t; +#define DUK_SMALL_INT_FAST_MIN DUK_INT_FAST16_MIN +#define DUK_SMALL_INT_FAST_MAX DUK_INT_FAST16_MAX +#define DUK_SMALL_UINT_FAST_MIN DUK_UINT_FAST16_MIN +#define DUK_SMALL_UINT_FAST_MAX DUK_UINT_FAST16_MAX + +/* Boolean values are represented with the platform 'int'. */ +typedef duk_small_int_t duk_bool_t; +#define DUK_BOOL_MIN DUK_SMALL_INT_MIN +#define DUK_BOOL_MAX DUK_SMALL_INT_MAX + +/* Index values must have at least 32-bit signed range. */ +typedef duk_int_t duk_idx_t; +#define DUK_IDX_MIN DUK_INT_MIN +#define DUK_IDX_MAX DUK_INT_MAX + +/* Unsigned index variant. */ +typedef duk_uint_t duk_uidx_t; +#define DUK_UIDX_MIN DUK_UINT_MIN +#define DUK_UIDX_MAX DUK_UINT_MAX + +/* Array index values, could be exact 32 bits. + * Currently no need for signed duk_arridx_t. + */ +typedef duk_uint_t duk_uarridx_t; +#define DUK_UARRIDX_MIN DUK_UINT_MIN +#define DUK_UARRIDX_MAX DUK_UINT_MAX + +/* Duktape/C function return value, platform int is enough for now to + * represent 0, 1, or negative error code. Must be compatible with + * assigning truth values (e.g. duk_ret_t rc = (foo == bar);). + */ +typedef duk_small_int_t duk_ret_t; +#define DUK_RET_MIN DUK_SMALL_INT_MIN +#define DUK_RET_MAX DUK_SMALL_INT_MAX + +/* Error codes are represented with platform int. High bits are used + * for flags and such, so 32 bits are needed. + */ +typedef duk_int_t duk_errcode_t; +#define DUK_ERRCODE_MIN DUK_INT_MIN +#define DUK_ERRCODE_MAX DUK_INT_MAX + +/* Codepoint type. Must be 32 bits or more because it is used also for + * internal codepoints. The type is signed because negative codepoints + * are used as internal markers (e.g. to mark EOF or missing argument). + * (X)UTF-8/CESU-8 encode/decode take and return an unsigned variant to + * ensure duk_uint32_t casts back and forth nicely. Almost everything + * else uses the signed one. + */ +typedef duk_int_t duk_codepoint_t; +typedef duk_uint_t duk_ucodepoint_t; +#define DUK_CODEPOINT_MIN DUK_INT_MIN +#define DUK_CODEPOINT_MAX DUK_INT_MAX +#define DUK_UCODEPOINT_MIN DUK_UINT_MIN +#define DUK_UCODEPOINT_MAX DUK_UINT_MAX + +/* IEEE float/double typedef. */ +typedef float duk_float_t; +typedef double duk_double_t; + +/* We're generally assuming that we're working on a platform with a 32-bit + * address space. If DUK_SIZE_MAX is a typecast value (which is necessary + * if SIZE_MAX is missing), the check must be avoided because the + * preprocessor can't do a comparison. + */ +#if !defined(DUK_SIZE_MAX) +#error DUK_SIZE_MAX is undefined, probably missing SIZE_MAX +#elif !defined(DUK_SIZE_MAX_COMPUTED) +#if DUK_SIZE_MAX < 0xffffffffUL +/* On some systems SIZE_MAX can be smaller than max unsigned 32-bit value + * which seems incorrect if size_t is (at least) an unsigned 32-bit type. + * However, it doesn't seem useful to error out compilation if this is the + * case. + */ +#endif +#endif + +/* Type for public API calls. */ +typedef struct duk_hthread duk_context; + +/* Check whether we should use 64-bit integers or not. + * + * Quite incomplete now. Use 64-bit types if detected (C99 or other detection) + * unless they are known to be unreliable. For instance, 64-bit types are + * available on VBCC but seem to misbehave. + */ +#if defined(DUK_F_HAVE_64BIT) && !defined(DUK_F_VBCC) +#define DUK_USE_64BIT_OPS +#else +#undef DUK_USE_64BIT_OPS +#endif + +/* + * Fill-ins for platform, architecture, and compiler + */ + +#if !defined(DUK_SETJMP) +#define DUK_JMPBUF_TYPE jmp_buf +#define DUK_SETJMP(jb) setjmp((jb)) +#define DUK_LONGJMP(jb) longjmp((jb), 1) +#endif + +#if 0 +/* sigsetjmp() alternative */ +#define DUK_JMPBUF_TYPE sigjmp_buf +#define DUK_SETJMP(jb) sigsetjmp((jb)) +#define DUK_LONGJMP(jb) siglongjmp((jb), 1) +#endif + +typedef FILE duk_file; +#if !defined(DUK_STDIN) +#define DUK_STDIN stdin +#endif +#if !defined(DUK_STDOUT) +#define DUK_STDOUT stdout +#endif +#if !defined(DUK_STDERR) +#define DUK_STDERR stderr +#endif + +/* Special naming to avoid conflict with e.g. DUK_FREE() in duk_heap.h + * (which is unfortunately named). May sometimes need replacement, e.g. + * some compilers don't handle zero length or NULL correctly in realloc(). + */ +#if !defined(DUK_ANSI_MALLOC) +#define DUK_ANSI_MALLOC malloc +#endif +#if !defined(DUK_ANSI_REALLOC) +#define DUK_ANSI_REALLOC realloc +#endif +#if !defined(DUK_ANSI_CALLOC) +#define DUK_ANSI_CALLOC calloc +#endif +#if !defined(DUK_ANSI_FREE) +#define DUK_ANSI_FREE free +#endif + +/* ANSI C (various versions) and some implementations require that the + * pointer arguments to memset(), memcpy(), and memmove() be valid values + * even when byte size is 0 (even a NULL pointer is considered invalid in + * this context). Zero-size operations as such are allowed, as long as their + * pointer arguments point to a valid memory area. The DUK_MEMSET(), + * DUK_MEMCPY(), and DUK_MEMMOVE() macros require this same behavior, i.e.: + * (1) pointers must be valid and non-NULL, (2) zero size must otherwise be + * allowed. If these are not fulfilled, a macro wrapper is needed. + * + * http://stackoverflow.com/questions/5243012/is-it-guaranteed-to-be-safe-to-perform-memcpy0-0-0 + * http://lists.cs.uiuc.edu/pipermail/llvmdev/2007-October/011065.html + * + * Not sure what's the required behavior when a pointer points just past the + * end of a buffer, which often happens in practice (e.g. zero size memmoves). + * For example, if allocation size is 3, the following pointer would not + * technically point to a valid memory byte: + * + * <-- alloc --> + * | 0 | 1 | 2 | ..... + * ^-- p=3, points after last valid byte (2) + */ +#if !defined(DUK_MEMCPY) +#if defined(DUK_F_UCLIBC) +/* Old uclibcs have a broken memcpy so use memmove instead (this is overly wide + * now on purpose): http://lists.uclibc.org/pipermail/uclibc-cvs/2008-October/025511.html + */ +#define DUK_MEMCPY memmove +#else +#define DUK_MEMCPY memcpy +#endif +#endif +#if !defined(DUK_MEMMOVE) +#define DUK_MEMMOVE memmove +#endif +#if !defined(DUK_MEMCMP) +#define DUK_MEMCMP memcmp +#endif +#if !defined(DUK_MEMSET) +#define DUK_MEMSET memset +#endif +#if !defined(DUK_STRLEN) +#define DUK_STRLEN strlen +#endif +#if !defined(DUK_STRCMP) +#define DUK_STRCMP strcmp +#endif +#if !defined(DUK_STRNCMP) +#define DUK_STRNCMP strncmp +#endif +#if !defined(DUK_PRINTF) +#define DUK_PRINTF printf +#endif +#if !defined(DUK_FPRINTF) +#define DUK_FPRINTF fprintf +#endif +#if !defined(DUK_SPRINTF) +#define DUK_SPRINTF sprintf +#endif +#if !defined(DUK_SNPRINTF) +/* snprintf() is technically not part of C89 but usually available. */ +#define DUK_SNPRINTF snprintf +#endif +#if !defined(DUK_VSPRINTF) +#define DUK_VSPRINTF vsprintf +#endif +#if !defined(DUK_VSNPRINTF) +/* vsnprintf() is technically not part of C89 but usually available. */ +#define DUK_VSNPRINTF vsnprintf +#endif +#if !defined(DUK_SSCANF) +#define DUK_SSCANF sscanf +#endif +#if !defined(DUK_VSSCANF) +#define DUK_VSSCANF vsscanf +#endif +#if !defined(DUK_FOPEN) +#define DUK_FOPEN fopen +#endif +#if !defined(DUK_FCLOSE) +#define DUK_FCLOSE fclose +#endif +#if !defined(DUK_FREAD) +#define DUK_FREAD fread +#endif +#if !defined(DUK_FWRITE) +#define DUK_FWRITE fwrite +#endif +#if !defined(DUK_FSEEK) +#define DUK_FSEEK fseek +#endif +#if !defined(DUK_FTELL) +#define DUK_FTELL ftell +#endif +#if !defined(DUK_FFLUSH) +#define DUK_FFLUSH fflush +#endif +#if !defined(DUK_FPUTC) +#define DUK_FPUTC fputc +#endif +#if !defined(DUK_MEMZERO) +#define DUK_MEMZERO(p,n) DUK_MEMSET((p), 0, (n)) +#endif +#if !defined(DUK_ABORT) +#define DUK_ABORT abort +#endif +#if !defined(DUK_EXIT) +#define DUK_EXIT exit +#endif + +#if !defined(DUK_DOUBLE_2TO32) +#define DUK_DOUBLE_2TO32 4294967296.0 +#endif +#if !defined(DUK_DOUBLE_2TO31) +#define DUK_DOUBLE_2TO31 2147483648.0 +#endif + +#if !defined(DUK_DOUBLE_INFINITY) +#undef DUK_USE_COMPUTED_INFINITY +#if defined(DUK_F_GCC_VERSION) && (DUK_F_GCC_VERSION < 40600) +/* GCC older than 4.6: avoid overflow warnings related to using INFINITY */ +#define DUK_DOUBLE_INFINITY (__builtin_inf()) +#elif defined(INFINITY) +#define DUK_DOUBLE_INFINITY ((double) INFINITY) +#elif !defined(DUK_F_VBCC) && !defined(DUK_F_MSVC) && !defined(DUK_F_BCC) +#define DUK_DOUBLE_INFINITY (1.0 / 0.0) +#else +/* In VBCC (1.0 / 0.0) results in a warning and 0.0 instead of infinity. + * Use a computed infinity (initialized when a heap is created at the + * latest). + */ +#define DUK_USE_COMPUTED_INFINITY +#define DUK_DOUBLE_INFINITY duk_computed_infinity +#endif +#endif + +#if !defined(DUK_DOUBLE_NAN) +#undef DUK_USE_COMPUTED_NAN +#if defined(NAN) +#define DUK_DOUBLE_NAN NAN +#elif !defined(DUK_F_VBCC) && !defined(DUK_F_MSVC) && !defined(DUK_F_BCC) +#define DUK_DOUBLE_NAN (0.0 / 0.0) +#else +/* In VBCC (0.0 / 0.0) results in a warning and 0.0 instead of NaN. + * In MSVC (VS2010 Express) (0.0 / 0.0) results in a compile error. + * Use a computed NaN (initialized when a heap is created at the + * latest). + */ +#define DUK_USE_COMPUTED_NAN +#define DUK_DOUBLE_NAN duk_computed_nan +#endif +#endif + +/* Many platforms are missing fpclassify() and friends, so use replacements + * if necessary. The replacement constants (FP_NAN etc) can be anything but + * match Linux constants now. + */ +#undef DUK_USE_REPL_FPCLASSIFY +#undef DUK_USE_REPL_SIGNBIT +#undef DUK_USE_REPL_ISFINITE +#undef DUK_USE_REPL_ISNAN +#undef DUK_USE_REPL_ISINF + +/* Complex condition broken into separate parts. */ +#undef DUK_F_USE_REPL_ALL +#if !(defined(FP_NAN) && defined(FP_INFINITE) && defined(FP_ZERO) && \ + defined(FP_SUBNORMAL) && defined(FP_NORMAL)) +/* Missing some obvious constants. */ +#define DUK_F_USE_REPL_ALL +#elif defined(DUK_F_AMIGAOS) && defined(DUK_F_VBCC) +/* VBCC is missing the built-ins even in C99 mode (perhaps a header issue) */ +#define DUK_F_USE_REPL_ALL +#elif defined(DUK_F_FREEBSD) && defined(DUK_F_CLANG) +/* Placeholder fix for (detection is wider than necessary): + * http://llvm.org/bugs/show_bug.cgi?id=17788 + */ +#define DUK_F_USE_REPL_ALL +#elif defined(DUK_F_UCLIBC) +/* At least some uclibc versions have broken floating point math. For + * example, fpclassify() can incorrectly classify certain NaN formats. + * To be safe, use replacements. + */ +#define DUK_F_USE_REPL_ALL +#endif + +#if defined(DUK_F_USE_REPL_ALL) +#define DUK_USE_REPL_FPCLASSIFY +#define DUK_USE_REPL_SIGNBIT +#define DUK_USE_REPL_ISFINITE +#define DUK_USE_REPL_ISNAN +#define DUK_USE_REPL_ISINF +#define DUK_FPCLASSIFY duk_repl_fpclassify +#define DUK_SIGNBIT duk_repl_signbit +#define DUK_ISFINITE duk_repl_isfinite +#define DUK_ISNAN duk_repl_isnan +#define DUK_ISINF duk_repl_isinf +#define DUK_FP_NAN 0 +#define DUK_FP_INFINITE 1 +#define DUK_FP_ZERO 2 +#define DUK_FP_SUBNORMAL 3 +#define DUK_FP_NORMAL 4 +#else +#define DUK_FPCLASSIFY fpclassify +#define DUK_SIGNBIT signbit +#define DUK_ISFINITE isfinite +#define DUK_ISNAN isnan +#define DUK_ISINF isinf +#define DUK_FP_NAN FP_NAN +#define DUK_FP_INFINITE FP_INFINITE +#define DUK_FP_ZERO FP_ZERO +#define DUK_FP_SUBNORMAL FP_SUBNORMAL +#define DUK_FP_NORMAL FP_NORMAL +#endif + +#if defined(DUK_F_USE_REPL_ALL) +#undef DUK_F_USE_REPL_ALL +#endif + +/* Some math functions are C99 only. This is also an issue with some + * embedded environments using uclibc where uclibc has been configured + * not to provide some functions. For now, use replacements whenever + * using uclibc. + */ +#undef DUK_USE_MATH_FMIN +#undef DUK_USE_MATH_FMAX +#undef DUK_USE_MATH_ROUND +#if defined(DUK_F_UCLIBC) +/* uclibc may be missing these */ +#elif defined(DUK_F_AMIGAOS) && defined(DUK_F_VBCC) +/* vbcc + AmigaOS may be missing these */ +#elif defined(DUK_F_MINT) +/* mint clib is missing these */ +#elif !defined(DUK_F_C99) && !defined(DUK_F_CPP11) +/* build is not C99 or C++11, play it safe */ +#else +/* C99 or C++11, no known issues */ +#define DUK_USE_MATH_FMIN +#define DUK_USE_MATH_FMAX +#define DUK_USE_MATH_ROUND +#endif + +/* These functions don't currently need replacement but are wrapped for + * completeness. Because these are used as function pointers, they need + * to be defined as concrete C functions (not macros). + */ +#if !defined(DUK_FABS) +#define DUK_FABS fabs +#endif +#if !defined(DUK_FMIN) +#define DUK_FMIN fmin +#endif +#if !defined(DUK_FMAX) +#define DUK_FMAX fmax +#endif +#if !defined(DUK_FLOOR) +#define DUK_FLOOR floor +#endif +#if !defined(DUK_CEIL) +#define DUK_CEIL ceil +#endif +#if !defined(DUK_FMOD) +#define DUK_FMOD fmod +#endif +#if !defined(DUK_POW) +#define DUK_POW pow +#endif +#if !defined(DUK_ACOS) +#define DUK_ACOS acos +#endif +#if !defined(DUK_ASIN) +#define DUK_ASIN asin +#endif +#if !defined(DUK_ATAN) +#define DUK_ATAN atan +#endif +#if !defined(DUK_ATAN2) +#define DUK_ATAN2 atan2 +#endif +#if !defined(DUK_SIN) +#define DUK_SIN sin +#endif +#if !defined(DUK_COS) +#define DUK_COS cos +#endif +#if !defined(DUK_TAN) +#define DUK_TAN tan +#endif +#if !defined(DUK_EXP) +#define DUK_EXP exp +#endif +#if !defined(DUK_LOG) +#define DUK_LOG log +#endif +#if !defined(DUK_SQRT) +#define DUK_SQRT sqrt +#endif + +/* NetBSD 6.0 x86 (at least) has a few problems with pow() semantics, + * see test-bug-netbsd-math-pow.js. Use NetBSD specific workaround. + * (This might be a wider problem; if so, generalize the define name.) + */ +#undef DUK_USE_POW_NETBSD_WORKAROUND +#if defined(DUK_F_NETBSD) +#define DUK_USE_POW_NETBSD_WORKAROUND +#endif + +/* Rely as little as possible on compiler behavior for NaN comparison, + * signed zero handling, etc. Currently never activated but may be needed + * for broken compilers. + */ +#undef DUK_USE_PARANOID_MATH + +/* There was a curious bug where test-bi-date-canceling.js would fail e.g. + * on 64-bit Ubuntu, gcc-4.8.1, -m32, and no -std=c99. Some date computations + * using doubles would be optimized which then broke some corner case tests. + * The problem goes away by adding 'volatile' to the datetime computations. + * Not sure what the actual triggering conditions are, but using this on + * non-C99 systems solves the known issues and has relatively little cost + * on other platforms. + */ +#undef DUK_USE_PARANOID_DATE_COMPUTATION +#if !defined(DUK_F_C99) +#define DUK_USE_PARANOID_DATE_COMPUTATION +#endif + +/* + * Byte order and double memory layout detection + * + * Endianness detection is a major portability hassle because the macros + * and headers are not standardized. There's even variance across UNIX + * platforms. Even with "standard" headers, details like underscore count + * varies between platforms, e.g. both __BYTE_ORDER and _BYTE_ORDER are used + * (Crossbridge has a single underscore, for instance). + * + * The checks below are structured with this in mind: several approaches are + * used, and at the end we check if any of them worked. This allows generic + * approaches to be tried first, and platform/compiler specific hacks tried + * last. As a last resort, the user can force a specific endianness, as it's + * not likely that automatic detection will work on the most exotic platforms. + * + * Duktape supports little and big endian machines. There's also support + * for a hybrid used by some ARM machines where integers are little endian + * but IEEE double values use a mixed order (12345678 -> 43218765). This + * byte order for doubles is referred to as "mixed endian". + */ + +/* For custom platforms allow user to define byteorder explicitly. + * Since endianness headers are not standardized, this is a useful + * workaround for custom platforms for which endianness detection + * is not directly supported. Perhaps custom hardware is used and + * user cannot submit upstream patches. + */ +#if defined(DUK_OPT_FORCE_BYTEORDER) +#undef DUK_USE_BYTEORDER +#if (DUK_OPT_FORCE_BYTEORDER == 1) +#define DUK_USE_BYTEORDER 1 +#elif (DUK_OPT_FORCE_BYTEORDER == 2) +#define DUK_USE_BYTEORDER 2 +#elif (DUK_OPT_FORCE_BYTEORDER == 3) +#define DUK_USE_BYTEORDER 3 +#else +#error invalid DUK_OPT_FORCE_BYTEORDER value +#endif +#endif /* DUK_OPT_FORCE_BYTEORDER */ + +/* GCC and Clang provide endianness defines as built-in predefines, with + * leading and trailing double underscores (e.g. __BYTE_ORDER__). See + * output of "make gccpredefs" and "make clangpredefs". Clang doesn't + * seem to provide __FLOAT_WORD_ORDER__; assume not mixed endian for clang. + * http://gcc.gnu.org/onlinedocs/cpp/Common-Predefined-Macros.html + */ +#if !defined(DUK_USE_BYTEORDER) && defined(__BYTE_ORDER__) +#if defined(__ORDER_LITTLE_ENDIAN__) && (__BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__) +#if defined(__FLOAT_WORD_ORDER__) && defined(__ORDER_LITTLE_ENDIAN__) && (__FLOAT_WORD_ORDER__ == __ORDER_LITTLE_ENDIAN__) +#define DUK_USE_BYTEORDER 1 +#elif defined(__FLOAT_WORD_ORDER__) && defined(__ORDER_BIG_ENDIAN__) && (__FLOAT_WORD_ORDER__ == __ORDER_BIG_ENDIAN__) +#define DUK_USE_BYTEORDER 2 +#elif !defined(__FLOAT_WORD_ORDER__) +/* Float word order not known, assume not a hybrid. */ +#define DUK_USE_BYTEORDER 1 +#else +/* Byte order is little endian but cannot determine IEEE double word order. */ +#endif /* float word order */ +#elif defined(__ORDER_BIG_ENDIAN__) && (__BYTE_ORDER__ == __ORDER_BIG_ENDIAN__) +#if defined(__FLOAT_WORD_ORDER__) && defined(__ORDER_BIG_ENDIAN__) && (__FLOAT_WORD_ORDER__ == __ORDER_BIG_ENDIAN__) +#define DUK_USE_BYTEORDER 3 +#elif !defined(__FLOAT_WORD_ORDER__) +/* Float word order not known, assume not a hybrid. */ +#define DUK_USE_BYTEORDER 3 +#else +/* Byte order is big endian but cannot determine IEEE double word order. */ +#endif /* float word order */ +#else +/* Cannot determine byte order; __ORDER_PDP_ENDIAN__ is related to 32-bit + * integer ordering and is not relevant. + */ +#endif /* integer byte order */ +#endif /* !defined(DUK_USE_BYTEORDER) && defined(__BYTE_ORDER__) */ + +/* More or less standard endianness predefines provided by header files. + * The ARM hybrid case is detected by assuming that __FLOAT_WORD_ORDER + * will be big endian, see: http://lists.mysql.com/internals/443. + * On some platforms some defines may be present with an empty value which + * causes comparisons to fail: https://github.com/svaarala/duktape/issues/453. + */ +#if !defined(DUK_USE_BYTEORDER) +#if defined(__BYTE_ORDER) && defined(__LITTLE_ENDIAN) && (__BYTE_ORDER == __LITTLE_ENDIAN) || \ + defined(_BYTE_ORDER) && defined(_LITTLE_ENDIAN) && (_BYTE_ORDER == _LITTLE_ENDIAN) || \ + defined(__LITTLE_ENDIAN__) +#if defined(__FLOAT_WORD_ORDER) && defined(__LITTLE_ENDIAN) && (__FLOAT_WORD_ORDER == __LITTLE_ENDIAN) || \ + defined(_FLOAT_WORD_ORDER) && defined(_LITTLE_ENDIAN) && (_FLOAT_WORD_ORDER == _LITTLE_ENDIAN) +#define DUK_USE_BYTEORDER 1 +#elif defined(__FLOAT_WORD_ORDER) && defined(__BIG_ENDIAN) && (__FLOAT_WORD_ORDER == __BIG_ENDIAN) || \ + defined(_FLOAT_WORD_ORDER) && defined(_BIG_ENDIAN) && (_FLOAT_WORD_ORDER == _BIG_ENDIAN) +#define DUK_USE_BYTEORDER 2 +#elif !defined(__FLOAT_WORD_ORDER) && !defined(_FLOAT_WORD_ORDER) +/* Float word order not known, assume not a hybrid. */ +#define DUK_USE_BYTEORDER 1 +#else +/* Byte order is little endian but cannot determine IEEE double word order. */ +#endif /* float word order */ +#elif defined(__BYTE_ORDER) && defined(__BIG_ENDIAN) && (__BYTE_ORDER == __BIG_ENDIAN) || \ + defined(_BYTE_ORDER) && defined(_BIG_ENDIAN) && (_BYTE_ORDER == _BIG_ENDIAN) || \ + defined(__BIG_ENDIAN__) +#if defined(__FLOAT_WORD_ORDER) && defined(__BIG_ENDIAN) && (__FLOAT_WORD_ORDER == __BIG_ENDIAN) || \ + defined(_FLOAT_WORD_ORDER) && defined(_BIG_ENDIAN) && (_FLOAT_WORD_ORDER == _BIG_ENDIAN) +#define DUK_USE_BYTEORDER 3 +#elif !defined(__FLOAT_WORD_ORDER) && !defined(_FLOAT_WORD_ORDER) +/* Float word order not known, assume not a hybrid. */ +#define DUK_USE_BYTEORDER 3 +#else +/* Byte order is big endian but cannot determine IEEE double word order. */ +#endif /* float word order */ +#else +/* Cannot determine byte order. */ +#endif /* integer byte order */ +#endif /* !defined(DUK_USE_BYTEORDER) */ + +/* QNX gcc cross compiler seems to define e.g. __LITTLEENDIAN__ or __BIGENDIAN__: + * $ /opt/qnx650/host/linux/x86/usr/bin/i486-pc-nto-qnx6.5.0-gcc -dM -E - > 24) | \ + ((((duk_uint32_t) (x)) >> 8) & 0xff00UL) | \ + ((((duk_uint32_t) (x)) << 8) & 0xff0000UL) | \ + (((duk_uint32_t) (x)) << 24)) +#endif +#if !defined(DUK_BSWAP16) +#define DUK_BSWAP16(x) \ + ((duk_uint16_t) (x) >> 8) | \ + ((duk_uint16_t) (x) << 8) +#endif + +/* DUK_USE_VARIADIC_MACROS: required from compilers, so no fill-in. */ +/* DUK_USE_UNION_INITIALIZERS: required from compilers, so no fill-in. */ + +#if !(defined(DUK_USE_FLEX_C99) || defined(DUK_USE_FLEX_ZEROSIZE) || defined(DUK_USE_FLEX_ONESIZE)) +#if defined(DUK_F_C99) +#define DUK_USE_FLEX_C99 +#else +#define DUK_USE_FLEX_ZEROSIZE /* Not standard but common enough */ +#endif +#endif + +#if !(defined(DUK_USE_PACK_GCC_ATTR) || defined(DUK_USE_PACK_CLANG_ATTR) || \ + defined(DUK_USE_PACK_MSVC_PRAGMA) || defined(DUK_USE_PACK_DUMMY_MEMBER)) +#define DUK_USE_PACK_DUMMY_MEMBER +#endif + +#if 0 /* not defined by default */ +#undef DUK_USE_GCC_PRAGMAS +#endif + +/* Workaround for GH-323: avoid inlining control when compiling from + * multiple sources, as it causes compiler portability trouble. + */ +#if !defined(DUK_SINGLE_FILE) +#undef DUK_NOINLINE +#undef DUK_INLINE +#undef DUK_ALWAYS_INLINE +#define DUK_NOINLINE /*nop*/ +#define DUK_INLINE /*nop*/ +#define DUK_ALWAYS_INLINE /*nop*/ +#endif + +/* + * Check whether or not a packed duk_tval representation is possible. + * What's basically required is that pointers are 32-bit values + * (sizeof(void *) == 4). Best effort check, not always accurate. + * If guess goes wrong, crashes may result; self tests also verify + * the guess. + */ + +/* Explicit marker needed; may be 'defined', 'undefined, 'or 'not provided'. */ +#if !defined(DUK_F_PACKED_TVAL_PROVIDED) +#undef DUK_F_PACKED_TVAL_POSSIBLE + +/* Strict C99 case: DUK_UINTPTR_MAX (= UINTPTR_MAX) should be very reliable */ +#if !defined(DUK_F_PACKED_TVAL_POSSIBLE) && defined(DUK_UINTPTR_MAX) +#if (DUK_UINTPTR_MAX <= 0xffffffffUL) +#define DUK_F_PACKED_TVAL_POSSIBLE +#endif +#endif + +/* Non-C99 case, still relying on DUK_UINTPTR_MAX, as long as it is not a computed value */ +#if !defined(DUK_F_PACKED_TVAL_POSSIBLE) && defined(DUK_UINTPTR_MAX) && !defined(DUK_UINTPTR_MAX_COMPUTED) +#if (DUK_UINTPTR_MAX <= 0xffffffffUL) +#define DUK_F_PACKED_TVAL_POSSIBLE +#endif +#endif + +/* DUK_SIZE_MAX (= SIZE_MAX) is often reliable */ +#if !defined(DUK_F_PACKED_TVAL_POSSIBLE) && defined(DUK_SIZE_MAX) && !defined(DUK_SIZE_MAX_COMPUTED) +#if (DUK_SIZE_MAX <= 0xffffffffUL) +#define DUK_F_PACKED_TVAL_POSSIBLE +#endif +#endif + +#undef DUK_USE_PACKED_TVAL +#if defined(DUK_F_PACKED_TVAL_POSSIBLE) +#define DUK_USE_PACKED_TVAL +#endif + +#undef DUK_F_PACKED_TVAL_POSSIBLE +#endif /* DUK_F_PACKED_TVAL_PROVIDED */ + +/* Feature option forcing. */ +#if defined(DUK_OPT_NO_PACKED_TVAL) +#undef DUK_USE_PACKED_TVAL +#elif defined(DUK_OPT_PACKED_TVAL) +#undef DUK_USE_PACKED_TVAL +#define DUK_USE_PACKED_TVAL +#endif +/* Object property allocation layout has implications for memory and code + * footprint and generated code size/speed. The best layout also depends + * on whether the platform has alignment requirements or benefits from + * having mostly aligned accesses. + */ +#undef DUK_USE_HOBJECT_LAYOUT_1 +#undef DUK_USE_HOBJECT_LAYOUT_2 +#undef DUK_USE_HOBJECT_LAYOUT_3 +#if (DUK_USE_ALIGN_BY == 1) +/* On platforms without any alignment issues, layout 1 is preferable + * because it compiles to slightly less code and provides direct access + * to property keys. + */ +#define DUK_USE_HOBJECT_LAYOUT_1 +#else +/* On other platforms use layout 2, which requires some padding but + * is a bit more natural than layout 3 in ordering the entries. Layout + * 3 is currently not used. + */ +#define DUK_USE_HOBJECT_LAYOUT_2 +#endif + +/* GCC/clang inaccurate math would break compliance and probably duk_tval, + * so refuse to compile. Relax this if -ffast-math is tested to work. + */ +#if defined(__FAST_MATH__) +#error __FAST_MATH__ defined, refusing to compile +#endif + +/* + * Feature option handling + */ + +#if !defined(DUK_USE_ALIGN_BY) +#if defined(DUK_OPT_FORCE_ALIGN) +#define DUK_USE_ALIGN_BY DUK_OPT_FORCE_ALIGN +#else +#define DUK_USE_ALIGN_BY 8 +#endif +#endif + +#if defined(DUK_OPT_ASSERTIONS) +#define DUK_USE_ASSERTIONS +#elif defined(DUK_OPT_NO_ASSERTIONS) +#undef DUK_USE_ASSERTIONS +#else +#undef DUK_USE_ASSERTIONS +#endif + +#if defined(DUK_OPT_AUGMENT_ERRORS) +#define DUK_USE_AUGMENT_ERROR_CREATE +#elif defined(DUK_OPT_NO_AUGMENT_ERRORS) +#undef DUK_USE_AUGMENT_ERROR_CREATE +#else +#define DUK_USE_AUGMENT_ERROR_CREATE +#endif + +#if defined(DUK_OPT_AUGMENT_ERRORS) +#define DUK_USE_AUGMENT_ERROR_THROW +#elif defined(DUK_OPT_NO_AUGMENT_ERRORS) +#undef DUK_USE_AUGMENT_ERROR_THROW +#else +#define DUK_USE_AUGMENT_ERROR_THROW +#endif + +#if defined(DUK_OPT_BROWSER_LIKE) +#define DUK_USE_BROWSER_LIKE +#elif defined(DUK_OPT_NO_BROWSER_LIKE) +#undef DUK_USE_BROWSER_LIKE +#else +#define DUK_USE_BROWSER_LIKE +#endif + +#if defined(DUK_OPT_BUFFEROBJECT_SUPPORT) +#define DUK_USE_BUFFEROBJECT_SUPPORT +#elif defined(DUK_OPT_NO_BUFFEROBJECT_SUPPORT) +#undef DUK_USE_BUFFEROBJECT_SUPPORT +#else +#define DUK_USE_BUFFEROBJECT_SUPPORT +#endif + +#if defined(DUK_OPT_BUFLEN16) +#define DUK_USE_BUFLEN16 +#elif defined(DUK_OPT_NO_BUFLEN16) +#undef DUK_USE_BUFLEN16 +#else +#undef DUK_USE_BUFLEN16 +#endif + +#if defined(DUK_OPT_BYTECODE_DUMP_SUPPORT) +#define DUK_USE_BYTECODE_DUMP_SUPPORT +#elif defined(DUK_OPT_NO_BYTECODE_DUMP_SUPPORT) +#undef DUK_USE_BYTECODE_DUMP_SUPPORT +#else +#define DUK_USE_BYTECODE_DUMP_SUPPORT +#endif + +#if defined(DUK_OPT_COMMONJS_MODULES) +#define DUK_USE_COMMONJS_MODULES +#elif defined(DUK_OPT_NO_COMMONJS_MODULES) +#undef DUK_USE_COMMONJS_MODULES +#else +#define DUK_USE_COMMONJS_MODULES +#endif + +#if defined(DUK_OPT_CPP_EXCEPTIONS) +#define DUK_USE_CPP_EXCEPTIONS +#elif defined(DUK_OPT_NO_CPP_EXCEPTIONS) +#undef DUK_USE_CPP_EXCEPTIONS +#else +#undef DUK_USE_CPP_EXCEPTIONS +#endif + +#if defined(DUK_OPT_DATAPTR16) +#define DUK_USE_DATAPTR16 +#elif defined(DUK_OPT_NO_DATAPTR16) +#undef DUK_USE_DATAPTR16 +#else +#undef DUK_USE_DATAPTR16 +#endif + +#if defined(DUK_OPT_DATAPTR_DEC16) +#define DUK_USE_DATAPTR_DEC16(udata,ptr) DUK_OPT_DATAPTR_DEC16((udata),(ptr)) +#else +#undef DUK_USE_DATAPTR_DEC16 +#endif + +#if defined(DUK_OPT_DATAPTR_ENC16) +#define DUK_USE_DATAPTR_ENC16(udata,ptr) DUK_OPT_DATAPTR_ENC16((udata),(ptr)) +#else +#undef DUK_USE_DATAPTR_ENC16 +#endif + +#if defined(DUK_OPT_DDDPRINT) +#define DUK_USE_DDDPRINT +#elif defined(DUK_OPT_NO_DDDPRINT) +#undef DUK_USE_DDDPRINT +#else +#undef DUK_USE_DDDPRINT +#endif + +#if defined(DUK_OPT_DDPRINT) +#define DUK_USE_DDPRINT +#elif defined(DUK_OPT_NO_DDPRINT) +#undef DUK_USE_DDPRINT +#else +#undef DUK_USE_DDPRINT +#endif + +#if defined(DUK_OPT_DEBUG) +#define DUK_USE_DEBUG +#elif defined(DUK_OPT_NO_DEBUG) +#undef DUK_USE_DEBUG +#else +#undef DUK_USE_DEBUG +#endif + +#if defined(DUK_OPT_DEBUGGER_DUMPHEAP) +#define DUK_USE_DEBUGGER_DUMPHEAP +#elif defined(DUK_OPT_NO_DEBUGGER_DUMPHEAP) +#undef DUK_USE_DEBUGGER_DUMPHEAP +#else +#undef DUK_USE_DEBUGGER_DUMPHEAP +#endif + +#if defined(DUK_OPT_DEBUGGER_FWD_LOGGING) +#define DUK_USE_DEBUGGER_FWD_LOGGING +#elif defined(DUK_OPT_NO_DEBUGGER_FWD_LOGGING) +#undef DUK_USE_DEBUGGER_FWD_LOGGING +#else +#undef DUK_USE_DEBUGGER_FWD_LOGGING +#endif + +#if defined(DUK_OPT_DEBUGGER_FWD_PRINTALERT) +#define DUK_USE_DEBUGGER_FWD_PRINTALERT +#elif defined(DUK_OPT_NO_DEBUGGER_FWD_PRINTALERT) +#undef DUK_USE_DEBUGGER_FWD_PRINTALERT +#else +#undef DUK_USE_DEBUGGER_FWD_PRINTALERT +#endif + +#if defined(DUK_OPT_DEBUGGER_INSPECT) +#define DUK_USE_DEBUGGER_INSPECT +#elif defined(DUK_OPT_NO_DEBUGGER_INSPECT) +#undef DUK_USE_DEBUGGER_INSPECT +#else +#undef DUK_USE_DEBUGGER_INSPECT +#endif + +#if defined(DUK_OPT_DEBUGGER_PAUSE_UNCAUGHT) +#define DUK_USE_DEBUGGER_PAUSE_UNCAUGHT +#elif defined(DUK_OPT_NO_DEBUGGER_PAUSE_UNCAUGHT) +#undef DUK_USE_DEBUGGER_PAUSE_UNCAUGHT +#else +#undef DUK_USE_DEBUGGER_PAUSE_UNCAUGHT +#endif + +#if defined(DUK_OPT_DEBUGGER_SUPPORT) +#define DUK_USE_DEBUGGER_SUPPORT +#elif defined(DUK_OPT_NO_DEBUGGER_SUPPORT) +#undef DUK_USE_DEBUGGER_SUPPORT +#else +#undef DUK_USE_DEBUGGER_SUPPORT +#endif + +#if defined(DUK_OPT_DEBUGGER_THROW_NOTIFY) +#define DUK_USE_DEBUGGER_THROW_NOTIFY +#elif defined(DUK_OPT_NO_DEBUGGER_THROW_NOTIFY) +#undef DUK_USE_DEBUGGER_THROW_NOTIFY +#else +#define DUK_USE_DEBUGGER_THROW_NOTIFY +#endif + +#if defined(DUK_OPT_DEBUGGER_TRANSPORT_TORTURE) +#define DUK_USE_DEBUGGER_TRANSPORT_TORTURE +#elif defined(DUK_OPT_NO_DEBUGGER_TRANSPORT_TORTURE) +#undef DUK_USE_DEBUGGER_TRANSPORT_TORTURE +#else +#undef DUK_USE_DEBUGGER_TRANSPORT_TORTURE +#endif + +#if defined(DUK_OPT_DEBUG_BUFSIZE) +#define DUK_USE_DEBUG_BUFSIZE DUK_OPT_DEBUG_BUFSIZE +#else +#define DUK_USE_DEBUG_BUFSIZE 65536L +#endif + +#if defined(DUK_OPT_REFERENCE_COUNTING) +#define DUK_USE_DOUBLE_LINKED_HEAP +#elif defined(DUK_OPT_NO_REFERENCE_COUNTING) +#undef DUK_USE_DOUBLE_LINKED_HEAP +#else +#define DUK_USE_DOUBLE_LINKED_HEAP +#endif + +#if defined(DUK_OPT_DPRINT) +#define DUK_USE_DPRINT +#elif defined(DUK_OPT_NO_DPRINT) +#undef DUK_USE_DPRINT +#else +#undef DUK_USE_DPRINT +#endif + +#if defined(DUK_OPT_DPRINT_COLORS) +#define DUK_USE_DPRINT_COLORS +#elif defined(DUK_OPT_NO_DPRINT_COLORS) +#undef DUK_USE_DPRINT_COLORS +#else +#undef DUK_USE_DPRINT_COLORS +#endif + +#if defined(DUK_OPT_DPRINT_RDTSC) +#define DUK_USE_DPRINT_RDTSC +#elif defined(DUK_OPT_NO_DPRINT_RDTSC) +#undef DUK_USE_DPRINT_RDTSC +#else +#undef DUK_USE_DPRINT_RDTSC +#endif + +#if defined(DUK_OPT_AUGMENT_ERRORS) +#define DUK_USE_ERRCREATE +#elif defined(DUK_OPT_NO_AUGMENT_ERRORS) +#undef DUK_USE_ERRCREATE +#else +#define DUK_USE_ERRCREATE +#endif + +#if defined(DUK_OPT_AUGMENT_ERRORS) +#define DUK_USE_ERRTHROW +#elif defined(DUK_OPT_NO_AUGMENT_ERRORS) +#undef DUK_USE_ERRTHROW +#else +#define DUK_USE_ERRTHROW +#endif + +#if defined(DUK_OPT_ES6_OBJECT_PROTO_PROPERTY) +#define DUK_USE_ES6_OBJECT_PROTO_PROPERTY +#elif defined(DUK_OPT_NO_ES6_OBJECT_PROTO_PROPERTY) +#undef DUK_USE_ES6_OBJECT_PROTO_PROPERTY +#else +#define DUK_USE_ES6_OBJECT_PROTO_PROPERTY +#endif + +#if defined(DUK_OPT_ES6_OBJECT_SETPROTOTYPEOF) +#define DUK_USE_ES6_OBJECT_SETPROTOTYPEOF +#elif defined(DUK_OPT_NO_ES6_OBJECT_SETPROTOTYPEOF) +#undef DUK_USE_ES6_OBJECT_SETPROTOTYPEOF +#else +#define DUK_USE_ES6_OBJECT_SETPROTOTYPEOF +#endif + +#if defined(DUK_OPT_ES6_PROXY) +#define DUK_USE_ES6_PROXY +#elif defined(DUK_OPT_NO_ES6_PROXY) +#undef DUK_USE_ES6_PROXY +#else +#define DUK_USE_ES6_PROXY +#endif + +#if defined(DUK_OPT_ES6_REGEXP_BRACES) +#define DUK_USE_ES6_REGEXP_BRACES +#elif defined(DUK_OPT_NO_ES6_REGEXP_BRACES) +#undef DUK_USE_ES6_REGEXP_BRACES +#else +#define DUK_USE_ES6_REGEXP_BRACES +#endif + +#undef DUK_USE_EXEC_INDIRECT_BOUND_CHECK +#if defined(DUK_OPT_DEBUG) || defined(DUK_OPT_ASSERTIONS) +/* Enabled with debug/assertions just so that any issues can be caught. */ +#define DUK_USE_EXEC_INDIRECT_BOUND_CHECK +#endif + +#undef DUK_USE_EXEC_TIMEOUT_CHECK +#if defined(DUK_OPT_EXEC_TIMEOUT_CHECK) +#define DUK_USE_EXEC_TIMEOUT_CHECK(udata) DUK_OPT_EXEC_TIMEOUT_CHECK((udata)) +#endif + +#undef DUK_USE_EXTSTR_FREE +#if defined(DUK_OPT_EXTERNAL_STRINGS) && defined(DUK_OPT_EXTSTR_FREE) +#define DUK_USE_EXTSTR_FREE(udata,ptr) DUK_OPT_EXTSTR_FREE((udata), (ptr)) +#endif + +#undef DUK_USE_EXTSTR_INTERN_CHECK +#if defined(DUK_OPT_EXTERNAL_STRINGS) && defined(DUK_OPT_EXTSTR_INTERN_CHECK) +#define DUK_USE_EXTSTR_INTERN_CHECK(udata,ptr,len) DUK_OPT_EXTSTR_INTERN_CHECK((udata), (ptr), (len)) +#endif + +/* Support for 48-bit signed integer duk_tval with transparent semantics. */ +#undef DUK_USE_FASTINT +#if defined(DUK_OPT_FASTINT) +#if !defined(DUK_F_HAVE_64BIT) +#error DUK_OPT_FASTINT requires 64-bit integer type support at the moment +#endif +#define DUK_USE_FASTINT +#endif + +#if defined(DUK_OPT_FILE_IO) +#define DUK_USE_FILE_IO +#elif defined(DUK_OPT_NO_FILE_IO) +#undef DUK_USE_FILE_IO +#else +#define DUK_USE_FILE_IO +#endif + +#if defined(DUK_OPT_FUNCPTR16) +#define DUK_USE_FUNCPTR16 +#elif defined(DUK_OPT_NO_FUNCPTR16) +#undef DUK_USE_FUNCPTR16 +#else +#undef DUK_USE_FUNCPTR16 +#endif + +#if defined(DUK_OPT_FUNCPTR_DEC16) +#define DUK_USE_FUNCPTR_DEC16(udata,ptr) DUK_OPT_FUNCPTR_DEC16((udata),(ptr)) +#else +#undef DUK_USE_FUNCPTR_DEC16 +#endif + +#if defined(DUK_OPT_FUNCPTR_ENC16) +#define DUK_USE_FUNCPTR_ENC16(udata,ptr) DUK_OPT_FUNCPTR_ENC16((udata),(ptr)) +#else +#undef DUK_USE_FUNCPTR_ENC16 +#endif + +#if defined(DUK_OPT_GC_TORTURE) +#define DUK_USE_GC_TORTURE +#elif defined(DUK_OPT_NO_GC_TORTURE) +#undef DUK_USE_GC_TORTURE +#else +#undef DUK_USE_GC_TORTURE +#endif + +#if defined(DUK_OPT_HEAPPTR16) +#define DUK_USE_HEAPPTR16 +#elif defined(DUK_OPT_NO_HEAPPTR16) +#undef DUK_USE_HEAPPTR16 +#else +#undef DUK_USE_HEAPPTR16 +#endif + +#if defined(DUK_OPT_HEAPPTR_DEC16) +#define DUK_USE_HEAPPTR_DEC16(udata,ptr) DUK_OPT_HEAPPTR_DEC16((udata),(ptr)) +#else +#undef DUK_USE_HEAPPTR_DEC16 +#endif + +#if defined(DUK_OPT_HEAPPTR_ENC16) +#define DUK_USE_HEAPPTR_ENC16(udata,ptr) DUK_OPT_HEAPPTR_ENC16((udata),(ptr)) +#else +#undef DUK_USE_HEAPPTR_ENC16 +#endif + +/* For now, hash part is dropped if and only if 16-bit object fields are used. */ +#define DUK_USE_HOBJECT_HASH_PART +#if defined(DUK_OPT_OBJSIZES16) +#undef DUK_USE_HOBJECT_HASH_PART +#endif + +#if defined(DUK_OPT_HSTRING_CLEN) +#define DUK_USE_HSTRING_CLEN +#elif defined(DUK_OPT_NO_HSTRING_CLEN) +#undef DUK_USE_HSTRING_CLEN +#else +#define DUK_USE_HSTRING_CLEN +#endif + +#if defined(DUK_OPT_EXTERNAL_STRINGS) +#define DUK_USE_HSTRING_EXTDATA +#elif defined(DUK_OPT_NO_EXTERNAL_STRINGS) +#undef DUK_USE_HSTRING_EXTDATA +#else +#undef DUK_USE_HSTRING_EXTDATA +#endif + +#if defined(DUK_OPT_INTERRUPT_COUNTER) +#define DUK_USE_INTERRUPT_COUNTER +#elif defined(DUK_OPT_NO_INTERRUPT_COUNTER) +#undef DUK_USE_INTERRUPT_COUNTER +#else +#undef DUK_USE_INTERRUPT_COUNTER +#endif + +#if defined(DUK_OPT_JC) +#define DUK_USE_JC +#elif defined(DUK_OPT_NO_JC) +#undef DUK_USE_JC +#else +#define DUK_USE_JC +#endif + +#if defined(DUK_OPT_JSON_STRINGIFY_FASTPATH) +#define DUK_USE_JSON_STRINGIFY_FASTPATH +#elif defined(DUK_OPT_NO_JSON_STRINGIFY_FASTPATH) +#undef DUK_USE_JSON_STRINGIFY_FASTPATH +#else +#undef DUK_USE_JSON_STRINGIFY_FASTPATH +#endif + +#if defined(DUK_OPT_JX) +#define DUK_USE_JX +#elif defined(DUK_OPT_NO_JX) +#undef DUK_USE_JX +#else +#define DUK_USE_JX +#endif + +#if defined(DUK_OPT_LIGHTFUNC_BUILTINS) +#define DUK_USE_LIGHTFUNC_BUILTINS +#elif defined(DUK_OPT_NO_LIGHTFUNC_BUILTINS) +#undef DUK_USE_LIGHTFUNC_BUILTINS +#else +#undef DUK_USE_LIGHTFUNC_BUILTINS +#endif + +#if defined(DUK_OPT_MARK_AND_SWEEP) +#define DUK_USE_MARK_AND_SWEEP +#elif defined(DUK_OPT_NO_MARK_AND_SWEEP) +#undef DUK_USE_MARK_AND_SWEEP +#else +#define DUK_USE_MARK_AND_SWEEP +#endif + +#if defined(DUK_OPT_MS_STRINGTABLE_RESIZE) +#define DUK_USE_MS_STRINGTABLE_RESIZE +#elif defined(DUK_OPT_NO_MS_STRINGTABLE_RESIZE) +#undef DUK_USE_MS_STRINGTABLE_RESIZE +#else +#define DUK_USE_MS_STRINGTABLE_RESIZE +#endif + +#if defined(DUK_OPT_NONSTD_ARRAY_CONCAT_TRAILER) +#define DUK_USE_NONSTD_ARRAY_CONCAT_TRAILER +#elif defined(DUK_OPT_NO_NONSTD_ARRAY_CONCAT_TRAILER) +#undef DUK_USE_NONSTD_ARRAY_CONCAT_TRAILER +#else +#define DUK_USE_NONSTD_ARRAY_CONCAT_TRAILER +#endif + +#if defined(DUK_OPT_NONSTD_ARRAY_MAP_TRAILER) +#define DUK_USE_NONSTD_ARRAY_MAP_TRAILER +#elif defined(DUK_OPT_NO_NONSTD_ARRAY_MAP_TRAILER) +#undef DUK_USE_NONSTD_ARRAY_MAP_TRAILER +#else +#define DUK_USE_NONSTD_ARRAY_MAP_TRAILER +#endif + +#if defined(DUK_OPT_NONSTD_ARRAY_SPLICE_DELCOUNT) +#define DUK_USE_NONSTD_ARRAY_SPLICE_DELCOUNT +#elif defined(DUK_OPT_NO_NONSTD_ARRAY_SPLICE_DELCOUNT) +#undef DUK_USE_NONSTD_ARRAY_SPLICE_DELCOUNT +#else +#define DUK_USE_NONSTD_ARRAY_SPLICE_DELCOUNT +#endif + +#if defined(DUK_OPT_NONSTD_FUNC_CALLER_PROPERTY) +#define DUK_USE_NONSTD_FUNC_CALLER_PROPERTY +#elif defined(DUK_OPT_NO_NONSTD_FUNC_CALLER_PROPERTY) +#undef DUK_USE_NONSTD_FUNC_CALLER_PROPERTY +#else +#undef DUK_USE_NONSTD_FUNC_CALLER_PROPERTY +#endif + +#if defined(DUK_OPT_NONSTD_FUNC_SOURCE_PROPERTY) +#define DUK_USE_NONSTD_FUNC_SOURCE_PROPERTY +#elif defined(DUK_OPT_NO_NONSTD_FUNC_SOURCE_PROPERTY) +#undef DUK_USE_NONSTD_FUNC_SOURCE_PROPERTY +#else +#undef DUK_USE_NONSTD_FUNC_SOURCE_PROPERTY +#endif + +#if defined(DUK_OPT_NONSTD_FUNC_STMT) +#define DUK_USE_NONSTD_FUNC_STMT +#elif defined(DUK_OPT_NO_NONSTD_FUNC_STMT) +#undef DUK_USE_NONSTD_FUNC_STMT +#else +#define DUK_USE_NONSTD_FUNC_STMT +#endif + +#if defined(DUK_OPT_NONSTD_ACCESSOR_KEY_ARGUMENT) +#define DUK_USE_NONSTD_GETTER_KEY_ARGUMENT +#elif defined(DUK_OPT_NO_NONSTD_ACCESSOR_KEY_ARGUMENT) +#undef DUK_USE_NONSTD_GETTER_KEY_ARGUMENT +#else +#define DUK_USE_NONSTD_GETTER_KEY_ARGUMENT +#endif + +#if defined(DUK_OPT_NONSTD_JSON_ESC_U2028_U2029) +#define DUK_USE_NONSTD_JSON_ESC_U2028_U2029 +#elif defined(DUK_OPT_NO_NONSTD_JSON_ESC_U2028_U2029) +#undef DUK_USE_NONSTD_JSON_ESC_U2028_U2029 +#else +#define DUK_USE_NONSTD_JSON_ESC_U2028_U2029 +#endif + +#if defined(DUK_OPT_NONSTD_REGEXP_DOLLAR_ESCAPE) +#define DUK_USE_NONSTD_REGEXP_DOLLAR_ESCAPE +#elif defined(DUK_OPT_NO_NONSTD_REGEXP_DOLLAR_ESCAPE) +#undef DUK_USE_NONSTD_REGEXP_DOLLAR_ESCAPE +#else +#define DUK_USE_NONSTD_REGEXP_DOLLAR_ESCAPE +#endif + +#if defined(DUK_OPT_NONSTD_ACCESSOR_KEY_ARGUMENT) +#define DUK_USE_NONSTD_SETTER_KEY_ARGUMENT +#elif defined(DUK_OPT_NO_NONSTD_ACCESSOR_KEY_ARGUMENT) +#undef DUK_USE_NONSTD_SETTER_KEY_ARGUMENT +#else +#define DUK_USE_NONSTD_SETTER_KEY_ARGUMENT +#endif + +#if defined(DUK_OPT_NONSTD_STRING_FROMCHARCODE_32BIT) +#define DUK_USE_NONSTD_STRING_FROMCHARCODE_32BIT +#elif defined(DUK_OPT_NO_NONSTD_STRING_FROMCHARCODE_32BIT) +#undef DUK_USE_NONSTD_STRING_FROMCHARCODE_32BIT +#else +#define DUK_USE_NONSTD_STRING_FROMCHARCODE_32BIT +#endif + +#if defined(DUK_OPT_OBJSIZES16) +#define DUK_USE_OBJSIZES16 +#elif defined(DUK_OPT_NO_OBJSIZES16) +#undef DUK_USE_OBJSIZES16 +#else +#undef DUK_USE_OBJSIZES16 +#endif + +#if defined(DUK_OPT_OCTAL_SUPPORT) +#define DUK_USE_OCTAL_SUPPORT +#elif defined(DUK_OPT_NO_OCTAL_SUPPORT) +#undef DUK_USE_OCTAL_SUPPORT +#else +#define DUK_USE_OCTAL_SUPPORT +#endif + +#if defined(DUK_OPT_PACKED_TVAL) +#define DUK_USE_PACKED_TVAL +#elif defined(DUK_OPT_NO_PACKED_TVAL) +#undef DUK_USE_PACKED_TVAL +#else +/* Already provided above */ +#endif + +#undef DUK_USE_PANIC_ABORT +#if !defined(DUK_OPT_SEGFAULT_ON_PANIC) +#define DUK_USE_PANIC_ABORT +#endif + +#undef DUK_USE_PANIC_HANDLER +#if defined(DUK_OPT_PANIC_HANDLER) +#define DUK_USE_PANIC_HANDLER(code,msg) DUK_OPT_PANIC_HANDLER((code),(msg)) +#endif + +#undef DUK_USE_PANIC_SEGFAULT +#if defined(DUK_OPT_SEGFAULT_ON_PANIC) +#define DUK_USE_PANIC_SEGFAULT +#endif + +#if defined(DUK_OPT_PARANOID_ERRORS) +#define DUK_USE_PARANOID_ERRORS +#elif defined(DUK_OPT_NO_PARANOID_ERRORS) +#undef DUK_USE_PARANOID_ERRORS +#else +#undef DUK_USE_PARANOID_ERRORS +#endif + +#if defined(DUK_OPT_PC2LINE) +#define DUK_USE_PC2LINE +#elif defined(DUK_OPT_NO_PC2LINE) +#undef DUK_USE_PC2LINE +#else +#define DUK_USE_PC2LINE +#endif + +#if defined(DUK_OPT_REFCOUNT16) +#define DUK_USE_REFCOUNT16 +#elif defined(DUK_OPT_NO_REFCOUNT16) +#undef DUK_USE_REFCOUNT16 +#else +#undef DUK_USE_REFCOUNT16 +#endif + +#if defined(DUK_OPT_REFERENCE_COUNTING) +#define DUK_USE_REFERENCE_COUNTING +#elif defined(DUK_OPT_NO_REFERENCE_COUNTING) +#undef DUK_USE_REFERENCE_COUNTING +#else +#define DUK_USE_REFERENCE_COUNTING +#endif + +#if defined(DUK_OPT_REGEXP_CANON_WORKAROUND) +#define DUK_USE_REGEXP_CANON_WORKAROUND +#elif defined(DUK_OPT_NO_REGEXP_CANON_WORKAROUND) +#undef DUK_USE_REGEXP_CANON_WORKAROUND +#else +#undef DUK_USE_REGEXP_CANON_WORKAROUND +#endif + +#if defined(DUK_OPT_REGEXP_SUPPORT) +#define DUK_USE_REGEXP_SUPPORT +#elif defined(DUK_OPT_NO_REGEXP_SUPPORT) +#undef DUK_USE_REGEXP_SUPPORT +#else +#define DUK_USE_REGEXP_SUPPORT +#endif + +#if defined(DUK_OPT_ROM_GLOBAL_CLONE) +#define DUK_USE_ROM_GLOBAL_CLONE +#elif defined(DUK_OPT_NO_ROM_GLOBAL_CLONE) +#undef DUK_USE_ROM_GLOBAL_CLONE +#else +#undef DUK_USE_ROM_GLOBAL_CLONE +#endif + +#if defined(DUK_OPT_ROM_GLOBAL_INHERIT) +#define DUK_USE_ROM_GLOBAL_INHERIT +#elif defined(DUK_OPT_NO_ROM_GLOBAL_INHERIT) +#undef DUK_USE_ROM_GLOBAL_INHERIT +#else +#undef DUK_USE_ROM_GLOBAL_INHERIT +#endif + +#if defined(DUK_OPT_ROM_OBJECTS) +#define DUK_USE_ROM_OBJECTS +#elif defined(DUK_OPT_NO_ROM_OBJECTS) +#undef DUK_USE_ROM_OBJECTS +#else +#undef DUK_USE_ROM_OBJECTS +#endif + +#if defined(DUK_OPT_ROM_STRINGS) +#define DUK_USE_ROM_STRINGS +#elif defined(DUK_OPT_NO_ROM_STRINGS) +#undef DUK_USE_ROM_STRINGS +#else +#undef DUK_USE_ROM_STRINGS +#endif + +#if defined(DUK_OPT_SECTION_B) +#define DUK_USE_SECTION_B +#elif defined(DUK_OPT_NO_SECTION_B) +#undef DUK_USE_SECTION_B +#else +#define DUK_USE_SECTION_B +#endif + +#if defined(DUK_OPT_SELF_TESTS) +#define DUK_USE_SELF_TESTS +#elif defined(DUK_OPT_NO_SELF_TESTS) +#undef DUK_USE_SELF_TESTS +#else +#undef DUK_USE_SELF_TESTS +#endif + +#if defined(DUK_OPT_SHUFFLE_TORTURE) +#define DUK_USE_SHUFFLE_TORTURE +#elif defined(DUK_OPT_NO_SHUFFLE_TORTURE) +#undef DUK_USE_SHUFFLE_TORTURE +#else +#undef DUK_USE_SHUFFLE_TORTURE +#endif + +#if defined(DUK_OPT_SOURCE_NONBMP) +#define DUK_USE_SOURCE_NONBMP +#elif defined(DUK_OPT_NO_SOURCE_NONBMP) +#undef DUK_USE_SOURCE_NONBMP +#else +#define DUK_USE_SOURCE_NONBMP +#endif + +#if defined(DUK_OPT_STRHASH16) +#define DUK_USE_STRHASH16 +#elif defined(DUK_OPT_NO_STRHASH16) +#undef DUK_USE_STRHASH16 +#else +#undef DUK_USE_STRHASH16 +#endif + +#if defined(DUK_OPT_STRICT_DECL) +#define DUK_USE_STRICT_DECL +#elif defined(DUK_OPT_NO_STRICT_DECL) +#undef DUK_USE_STRICT_DECL +#else +#define DUK_USE_STRICT_DECL +#endif + +#if defined(DUK_OPT_STRICT_UTF8_SOURCE) +#define DUK_USE_STRICT_UTF8_SOURCE +#elif defined(DUK_OPT_NO_STRICT_UTF8_SOURCE) +#undef DUK_USE_STRICT_UTF8_SOURCE +#else +#undef DUK_USE_STRICT_UTF8_SOURCE +#endif + +#if defined(DUK_OPT_STRLEN16) +#define DUK_USE_STRLEN16 +#elif defined(DUK_OPT_NO_STRLEN16) +#undef DUK_USE_STRLEN16 +#else +#undef DUK_USE_STRLEN16 +#endif + +#undef DUK_USE_STRTAB_CHAIN +#if defined(DUK_OPT_STRTAB_CHAIN) && defined(DUK_OPT_STRTAB_CHAIN_SIZE) +#define DUK_USE_STRTAB_CHAIN +#endif + +#undef DUK_USE_STRTAB_CHAIN_SIZE +#if defined(DUK_OPT_STRTAB_CHAIN) && defined(DUK_OPT_STRTAB_CHAIN_SIZE) +/* Low memory algorithm: separate chaining using arrays, fixed size hash */ +#define DUK_USE_STRTAB_CHAIN_SIZE DUK_OPT_STRTAB_CHAIN_SIZE +#endif + +#undef DUK_USE_STRTAB_PROBE +#if !(defined(DUK_OPT_STRTAB_CHAIN) && defined(DUK_OPT_STRTAB_CHAIN_SIZE)) +#define DUK_USE_STRTAB_PROBE +#endif + +#if defined(DUK_OPT_NONSTD_FUNC_CALLER_PROPERTY) +#undef DUK_USE_TAILCALL +#else +#define DUK_USE_TAILCALL +#endif + +#if defined(DUK_OPT_TARGET_INFO) +#define DUK_USE_TARGET_INFO DUK_OPT_TARGET_INFO +#else +#define DUK_USE_TARGET_INFO "unknown" +#endif + +#if defined(DUK_OPT_NO_AUGMENT_ERRORS) +#undef DUK_USE_TRACEBACKS +#elif defined(DUK_OPT_NO_TRACEBACKS) +#undef DUK_USE_TRACEBACKS +#else +#define DUK_USE_TRACEBACKS +#endif + +#if defined(DUK_OPT_TRACEBACK_DEPTH) +#define DUK_USE_TRACEBACK_DEPTH DUK_OPT_TRACEBACK_DEPTH +#else +#define DUK_USE_TRACEBACK_DEPTH 10 +#endif + +#if defined(DUK_OPT_DECLARE) +#define DUK_USE_USER_DECLARE() DUK_OPT_DECLARE +#else +#define DUK_USE_USER_DECLARE() /* no user declarations */ +#endif + +/* User provided InitJS. */ +#undef DUK_USE_USER_INITJS +#if defined(DUK_OPT_USER_INITJS) +#define DUK_USE_USER_INITJS (DUK_OPT_USER_INITJS) +#endif + +#if defined(DUK_OPT_VERBOSE_ERRORS) +#define DUK_USE_VERBOSE_ERRORS +#elif defined(DUK_OPT_NO_VERBOSE_ERRORS) +#undef DUK_USE_VERBOSE_ERRORS +#else +#define DUK_USE_VERBOSE_ERRORS +#endif + +#if defined(DUK_OPT_VOLUNTARY_GC) +#define DUK_USE_VOLUNTARY_GC +#elif defined(DUK_OPT_NO_VOLUNTARY_GC) +#undef DUK_USE_VOLUNTARY_GC +#else +#define DUK_USE_VOLUNTARY_GC +#endif + +#if defined(DUK_OPT_ZERO_BUFFER_DATA) +#define DUK_USE_ZERO_BUFFER_DATA +#elif defined(DUK_OPT_NO_ZERO_BUFFER_DATA) +#undef DUK_USE_ZERO_BUFFER_DATA +#else +#define DUK_USE_ZERO_BUFFER_DATA +#endif + +/* + * Autogenerated defaults + */ + +#define DUK_USE_AVOID_PLATFORM_FUNCPTRS +#define DUK_USE_BASE64_FASTPATH +#define DUK_USE_BUILTIN_INITJS +#define DUK_USE_COMPILER_RECLIMIT 2500 +#undef DUK_USE_DATE_FORMAT_STRING +#undef DUK_USE_DATE_GET_LOCAL_TZOFFSET +#undef DUK_USE_DATE_GET_NOW +#undef DUK_USE_DATE_PARSE_STRING +#undef DUK_USE_DATE_PRS_GETDATE +#define DUK_USE_ESBC_LIMITS +#define DUK_USE_ESBC_MAX_BYTES 2147418112L +#define DUK_USE_ESBC_MAX_LINENUMBER 2147418112L +#undef DUK_USE_EXEC_FUN_LOCAL +#undef DUK_USE_EXPLICIT_NULL_INIT +#define DUK_USE_FAST_REFCOUNT_DEFAULT +#define DUK_USE_HEX_FASTPATH +#define DUK_USE_IDCHAR_FASTPATH +#undef DUK_USE_INTERRUPT_DEBUG_FIXUP +#define DUK_USE_JSON_DECNUMBER_FASTPATH +#define DUK_USE_JSON_DECSTRING_FASTPATH +#define DUK_USE_JSON_DEC_RECLIMIT 1000 +#define DUK_USE_JSON_EATWHITE_FASTPATH +#define DUK_USE_JSON_ENC_RECLIMIT 1000 +#define DUK_USE_JSON_QUOTESTRING_FASTPATH +#define DUK_USE_LEXER_SLIDING_WINDOW +#undef DUK_USE_MARKANDSWEEP_FINALIZER_TORTURE +#define DUK_USE_MARK_AND_SWEEP_RECLIMIT 256 +#define DUK_USE_MATH_BUILTIN +#define DUK_USE_NATIVE_CALL_RECLIMIT 1000 +#undef DUK_USE_PANIC_EXIT +#undef DUK_USE_PREFER_SIZE +#define DUK_USE_PROVIDE_DEFAULT_ALLOC_FUNCTIONS +#undef DUK_USE_REFZERO_FINALIZER_TORTURE +#define DUK_USE_REGEXP_COMPILER_RECLIMIT 10000 +#define DUK_USE_REGEXP_EXECUTOR_RECLIMIT 10000 +#define DUK_USE_ROM_PTRCOMP_FIRST 63488L +#undef DUK_USE_STRHASH_DENSE +#define DUK_USE_STRHASH_SKIP_SHIFT 5 +#undef DUK_USE_VALSTACK_UNSAFE +#define DUK_USE_VERBOSE_EXECUTOR_ERRORS + +/* + * Alternative customization header + * + * If you want to modify the final DUK_USE_xxx flags directly (without + * using the available DUK_OPT_xxx flags), define DUK_OPT_HAVE_CUSTOM_H + * and tweak the final flags there. + */ + +#if defined(DUK_OPT_HAVE_CUSTOM_H) +#include "duk_custom.h" +#endif + +/* + * You may add overriding #define/#undef directives below for + * customization. You of course cannot un-#include or un-typedef + * anything; these require direct changes above. + */ + +/* __OVERRIDE_DEFINES__ */ + +/* + * Date provider selection + * + * User may define DUK_USE_DATE_GET_NOW() etc directly, in which case we'll + * rely on an external provider. If this is not done, revert to previous + * behavior and use Unix/Windows built-in provider. + */ + +#if defined(DUK_COMPILING_DUKTAPE) + +#if defined(DUK_USE_DATE_GET_NOW) +/* External provider already defined. */ +#elif defined(DUK_USE_DATE_NOW_GETTIMEOFDAY) +#define DUK_USE_DATE_GET_NOW(ctx) duk_bi_date_get_now_gettimeofday((ctx)) +#elif defined(DUK_USE_DATE_NOW_TIME) +#define DUK_USE_DATE_GET_NOW(ctx) duk_bi_date_get_now_time((ctx)) +#elif defined(DUK_USE_DATE_NOW_WINDOWS) +#define DUK_USE_DATE_GET_NOW(ctx) duk_bi_date_get_now_windows((ctx)) +#else +#error no provider for DUK_USE_DATE_GET_NOW() +#endif + +#if defined(DUK_USE_DATE_GET_LOCAL_TZOFFSET) +/* External provider already defined. */ +#elif defined(DUK_USE_DATE_TZO_GMTIME_R) || defined(DUK_USE_DATE_TZO_GMTIME) +#define DUK_USE_DATE_GET_LOCAL_TZOFFSET(d) duk_bi_date_get_local_tzoffset_gmtime((d)) +#elif defined(DUK_USE_DATE_TZO_WINDOWS) +#define DUK_USE_DATE_GET_LOCAL_TZOFFSET(d) duk_bi_date_get_local_tzoffset_windows((d)) +#else +#error no provider for DUK_USE_DATE_GET_LOCAL_TZOFFSET() +#endif + +#if defined(DUK_USE_DATE_PARSE_STRING) +/* External provider already defined. */ +#elif defined(DUK_USE_DATE_PRS_STRPTIME) +#define DUK_USE_DATE_PARSE_STRING(ctx,str) duk_bi_date_parse_string_strptime((ctx), (str)) +#elif defined(DUK_USE_DATE_PRS_GETDATE) +#define DUK_USE_DATE_PARSE_STRING(ctx,str) duk_bi_date_parse_string_getdate((ctx), (str)) +#else +/* No provider for DUK_USE_DATE_PARSE_STRING(), fall back to ISO 8601 only. */ +#endif + +#if defined(DUK_USE_DATE_FORMAT_STRING) +/* External provider already defined. */ +#elif defined(DUK_USE_DATE_FMT_STRFTIME) +#define DUK_USE_DATE_FORMAT_STRING(ctx,parts,tzoffset,flags) \ + duk_bi_date_format_parts_strftime((ctx), (parts), (tzoffset), (flags)) +#else +/* No provider for DUK_USE_DATE_FORMAT_STRING(), fall back to ISO 8601 only. */ +#endif + +#endif /* DUK_COMPILING_DUKTAPE */ + +/* + * Checks for config option consistency (DUK_USE_xxx) + */ + +#if defined(DUK_USE_32BIT_PTRS) +#error unsupported config option used (option has been removed): DUK_USE_32BIT_PTRS +#endif +#if defined(DUK_USE_ALIGN_4) +#error unsupported config option used (option has been removed): DUK_USE_ALIGN_4 +#endif +#if defined(DUK_USE_ALIGN_8) +#error unsupported config option used (option has been removed): DUK_USE_ALIGN_8 +#endif +#if defined(DUK_USE_BYTEORDER_FORCED) +#error unsupported config option used (option has been removed): DUK_USE_BYTEORDER_FORCED +#endif +#if defined(DUK_USE_DATAPTR_DEC16) && !defined(DUK_USE_DATAPTR16) +#error config option DUK_USE_DATAPTR_DEC16 requires option DUK_USE_DATAPTR16 (which is missing) +#endif +#if defined(DUK_USE_DATAPTR_ENC16) && !defined(DUK_USE_DATAPTR16) +#error config option DUK_USE_DATAPTR_ENC16 requires option DUK_USE_DATAPTR16 (which is missing) +#endif +#if defined(DUK_USE_DEBUGGER_SUPPORT) && !defined(DUK_USE_INTERRUPT_COUNTER) +#error config option DUK_USE_DEBUGGER_SUPPORT requires option DUK_USE_INTERRUPT_COUNTER (which is missing) +#endif +#if defined(DUK_USE_DEEP_C_STACK) +#error unsupported config option used (option has been removed): DUK_USE_DEEP_C_STACK +#endif +#if defined(DUK_USE_DOUBLE_BE) +#error unsupported config option used (option has been removed): DUK_USE_DOUBLE_BE +#endif +#if defined(DUK_USE_DOUBLE_BE) && defined(DUK_USE_DOUBLE_LE) +#error config option DUK_USE_DOUBLE_BE conflicts with option DUK_USE_DOUBLE_LE (which is also defined) +#endif +#if defined(DUK_USE_DOUBLE_BE) && defined(DUK_USE_DOUBLE_ME) +#error config option DUK_USE_DOUBLE_BE conflicts with option DUK_USE_DOUBLE_ME (which is also defined) +#endif +#if defined(DUK_USE_DOUBLE_LE) +#error unsupported config option used (option has been removed): DUK_USE_DOUBLE_LE +#endif +#if defined(DUK_USE_DOUBLE_LE) && defined(DUK_USE_DOUBLE_BE) +#error config option DUK_USE_DOUBLE_LE conflicts with option DUK_USE_DOUBLE_BE (which is also defined) +#endif +#if defined(DUK_USE_DOUBLE_LE) && defined(DUK_USE_DOUBLE_ME) +#error config option DUK_USE_DOUBLE_LE conflicts with option DUK_USE_DOUBLE_ME (which is also defined) +#endif +#if defined(DUK_USE_DOUBLE_ME) +#error unsupported config option used (option has been removed): DUK_USE_DOUBLE_ME +#endif +#if defined(DUK_USE_DOUBLE_ME) && defined(DUK_USE_DOUBLE_LE) +#error config option DUK_USE_DOUBLE_ME conflicts with option DUK_USE_DOUBLE_LE (which is also defined) +#endif +#if defined(DUK_USE_DOUBLE_ME) && defined(DUK_USE_DOUBLE_BE) +#error config option DUK_USE_DOUBLE_ME conflicts with option DUK_USE_DOUBLE_BE (which is also defined) +#endif +#if defined(DUK_USE_DPRINT) && !defined(DUK_USE_DEBUG) +#error config option DUK_USE_DPRINT requires option DUK_USE_DEBUG (which is missing) +#endif +#if defined(DUK_USE_ESBC_MAX_BYTES) && !defined(DUK_USE_ESBC_LIMITS) +#error config option DUK_USE_ESBC_MAX_BYTES requires option DUK_USE_ESBC_LIMITS (which is missing) +#endif +#if defined(DUK_USE_ESBC_MAX_LINENUMBER) && !defined(DUK_USE_ESBC_LIMITS) +#error config option DUK_USE_ESBC_MAX_LINENUMBER requires option DUK_USE_ESBC_LIMITS (which is missing) +#endif +#if defined(DUK_USE_EXEC_TIMEOUT_CHECK) && !defined(DUK_USE_INTERRUPT_COUNTER) +#error config option DUK_USE_EXEC_TIMEOUT_CHECK requires option DUK_USE_INTERRUPT_COUNTER (which is missing) +#endif +#if defined(DUK_USE_EXTSTR_FREE) && !defined(DUK_USE_HSTRING_EXTDATA) +#error config option DUK_USE_EXTSTR_FREE requires option DUK_USE_HSTRING_EXTDATA (which is missing) +#endif +#if defined(DUK_USE_EXTSTR_INTERN_CHECK) && !defined(DUK_USE_HSTRING_EXTDATA) +#error config option DUK_USE_EXTSTR_INTERN_CHECK requires option DUK_USE_HSTRING_EXTDATA (which is missing) +#endif +#if defined(DUK_USE_FULL_TVAL) +#error unsupported config option used (option has been removed): DUK_USE_FULL_TVAL +#endif +#if defined(DUK_USE_FUNCPTR_DEC16) && !defined(DUK_USE_FUNCPTR16) +#error config option DUK_USE_FUNCPTR_DEC16 requires option DUK_USE_FUNCPTR16 (which is missing) +#endif +#if defined(DUK_USE_FUNCPTR_ENC16) && !defined(DUK_USE_FUNCPTR16) +#error config option DUK_USE_FUNCPTR_ENC16 requires option DUK_USE_FUNCPTR16 (which is missing) +#endif +#if defined(DUK_USE_HASHBYTES_UNALIGNED_U32_ACCESS) +#error unsupported config option used (option has been removed): DUK_USE_HASHBYTES_UNALIGNED_U32_ACCESS +#endif +#if defined(DUK_USE_HEAPPTR16) && defined(DUK_USE_DEBUG) +#error config option DUK_USE_HEAPPTR16 conflicts with option DUK_USE_DEBUG (which is also defined) +#endif +#if defined(DUK_USE_HEAPPTR_DEC16) && !defined(DUK_USE_HEAPPTR16) +#error config option DUK_USE_HEAPPTR_DEC16 requires option DUK_USE_HEAPPTR16 (which is missing) +#endif +#if defined(DUK_USE_HEAPPTR_ENC16) && !defined(DUK_USE_HEAPPTR16) +#error config option DUK_USE_HEAPPTR_ENC16 requires option DUK_USE_HEAPPTR16 (which is missing) +#endif +#if defined(DUK_USE_INTEGER_BE) +#error unsupported config option used (option has been removed): DUK_USE_INTEGER_BE +#endif +#if defined(DUK_USE_INTEGER_BE) && defined(DUK_USE_INTEGER_LE) +#error config option DUK_USE_INTEGER_BE conflicts with option DUK_USE_INTEGER_LE (which is also defined) +#endif +#if defined(DUK_USE_INTEGER_BE) && defined(DUK_USE_INTEGER_ME) +#error config option DUK_USE_INTEGER_BE conflicts with option DUK_USE_INTEGER_ME (which is also defined) +#endif +#if defined(DUK_USE_INTEGER_LE) +#error unsupported config option used (option has been removed): DUK_USE_INTEGER_LE +#endif +#if defined(DUK_USE_INTEGER_LE) && defined(DUK_USE_INTEGER_BE) +#error config option DUK_USE_INTEGER_LE conflicts with option DUK_USE_INTEGER_BE (which is also defined) +#endif +#if defined(DUK_USE_INTEGER_LE) && defined(DUK_USE_INTEGER_ME) +#error config option DUK_USE_INTEGER_LE conflicts with option DUK_USE_INTEGER_ME (which is also defined) +#endif +#if defined(DUK_USE_INTEGER_ME) +#error unsupported config option used (option has been removed): DUK_USE_INTEGER_ME +#endif +#if defined(DUK_USE_INTEGER_ME) && defined(DUK_USE_INTEGER_LE) +#error config option DUK_USE_INTEGER_ME conflicts with option DUK_USE_INTEGER_LE (which is also defined) +#endif +#if defined(DUK_USE_INTEGER_ME) && defined(DUK_USE_INTEGER_BE) +#error config option DUK_USE_INTEGER_ME conflicts with option DUK_USE_INTEGER_BE (which is also defined) +#endif +#if defined(DUK_USE_NO_DOUBLE_ALIASING_SELFTEST) +#error unsupported config option used (option has been removed): DUK_USE_NO_DOUBLE_ALIASING_SELFTEST +#endif +#if defined(DUK_USE_PACKED_TVAL_POSSIBLE) +#error unsupported config option used (option has been removed): DUK_USE_PACKED_TVAL_POSSIBLE +#endif +#if defined(DUK_USE_RDTSC) +#error unsupported config option used (option has been removed): DUK_USE_RDTSC +#endif +#if defined(DUK_USE_ROM_GLOBAL_CLONE) && !defined(DUK_USE_ROM_STRINGS) +#error config option DUK_USE_ROM_GLOBAL_CLONE requires option DUK_USE_ROM_STRINGS (which is missing) +#endif +#if defined(DUK_USE_ROM_GLOBAL_CLONE) && !defined(DUK_USE_ROM_OBJECTS) +#error config option DUK_USE_ROM_GLOBAL_CLONE requires option DUK_USE_ROM_OBJECTS (which is missing) +#endif +#if defined(DUK_USE_ROM_GLOBAL_CLONE) && defined(DUK_USE_ROM_GLOBAL_INHERIT) +#error config option DUK_USE_ROM_GLOBAL_CLONE conflicts with option DUK_USE_ROM_GLOBAL_INHERIT (which is also defined) +#endif +#if defined(DUK_USE_ROM_GLOBAL_INHERIT) && !defined(DUK_USE_ROM_STRINGS) +#error config option DUK_USE_ROM_GLOBAL_INHERIT requires option DUK_USE_ROM_STRINGS (which is missing) +#endif +#if defined(DUK_USE_ROM_GLOBAL_INHERIT) && !defined(DUK_USE_ROM_OBJECTS) +#error config option DUK_USE_ROM_GLOBAL_INHERIT requires option DUK_USE_ROM_OBJECTS (which is missing) +#endif +#if defined(DUK_USE_ROM_GLOBAL_INHERIT) && defined(DUK_USE_ROM_GLOBAL_CLONE) +#error config option DUK_USE_ROM_GLOBAL_INHERIT conflicts with option DUK_USE_ROM_GLOBAL_CLONE (which is also defined) +#endif +#if defined(DUK_USE_ROM_OBJECTS) && !defined(DUK_USE_ROM_STRINGS) +#error config option DUK_USE_ROM_OBJECTS requires option DUK_USE_ROM_STRINGS (which is missing) +#endif +#if defined(DUK_USE_ROM_STRINGS) && !defined(DUK_USE_ROM_OBJECTS) +#error config option DUK_USE_ROM_STRINGS requires option DUK_USE_ROM_OBJECTS (which is missing) +#endif +#if defined(DUK_USE_SETJMP) +#error unsupported config option used (option has been removed): DUK_USE_SETJMP +#endif +#if defined(DUK_USE_SIGSETJMP) +#error unsupported config option used (option has been removed): DUK_USE_SIGSETJMP +#endif +#if defined(DUK_USE_STRTAB_CHAIN_SIZE) && !defined(DUK_USE_STRTAB_CHAIN) +#error config option DUK_USE_STRTAB_CHAIN_SIZE requires option DUK_USE_STRTAB_CHAIN (which is missing) +#endif +#if defined(DUK_USE_TAILCALL) && defined(DUK_USE_NONSTD_FUNC_CALLER_PROPERTY) +#error config option DUK_USE_TAILCALL conflicts with option DUK_USE_NONSTD_FUNC_CALLER_PROPERTY (which is also defined) +#endif +#if defined(DUK_USE_UNALIGNED_ACCESSES_POSSIBLE) +#error unsupported config option used (option has been removed): DUK_USE_UNALIGNED_ACCESSES_POSSIBLE +#endif +#if defined(DUK_USE_UNDERSCORE_SETJMP) +#error unsupported config option used (option has been removed): DUK_USE_UNDERSCORE_SETJMP +#endif + +#if defined(DUK_USE_CPP_EXCEPTIONS) && !defined(__cplusplus) +#error DUK_USE_CPP_EXCEPTIONS enabled but not compiling with a C++ compiler +#endif + +/* + * Convert DUK_USE_BYTEORDER, from whatever source, into currently used + * internal defines. If detection failed, #error out. + */ + +#if defined(DUK_USE_BYTEORDER) +#if (DUK_USE_BYTEORDER == 1) +#define DUK_USE_INTEGER_LE +#define DUK_USE_DOUBLE_LE +#elif (DUK_USE_BYTEORDER == 2) +#define DUK_USE_INTEGER_LE /* integer endianness is little on purpose */ +#define DUK_USE_DOUBLE_ME +#elif (DUK_USE_BYTEORDER == 3) +#define DUK_USE_INTEGER_BE +#define DUK_USE_DOUBLE_BE +#else +#error unsupported: byte order invalid +#endif /* byte order */ +#else +#error unsupported: byte order detection failed +#endif /* defined(DUK_USE_BYTEORDER) */ + +#endif /* DUK_CONFIG_H_INCLUDED */ diff --git a/content/handlers/javascript/duktape/duk_custom.h b/content/handlers/javascript/duktape/duk_custom.h new file mode 100644 index 000000000..1f98b7825 --- /dev/null +++ b/content/handlers/javascript/duktape/duk_custom.h @@ -0,0 +1,37 @@ +/* + * Copyright 2015 Daniel Silverstone + * + * This file is part of NetSurf, http://www.netsurf-browser.org/ + * + * NetSurf is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * NetSurf is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +/** \file + * Custom configuration for duktape + */ + +#include "utils/config.h" + +#ifndef HAVE_STRPTIME +#undef DUK_USE_DATE_PRS_STRPTIME +#undef DUK_USE_DATE_PRS_GETDATE +#undef DUK_USE_DATE_PARSE_STRING +#endif + +#define DUK_USE_REGEXP_CANON_WORKAROUND + +/* Required for execution timeout checking */ +#define DUK_USE_INTERRUPT_COUNTER + +extern duk_bool_t dukky_check_timeout(void *udata); +#define DUK_USE_EXEC_TIMEOUT_CHECK dukky_check_timeout diff --git a/content/handlers/javascript/duktape/dukky.c b/content/handlers/javascript/duktape/dukky.c new file mode 100644 index 000000000..7dd3bd71e --- /dev/null +++ b/content/handlers/javascript/duktape/dukky.c @@ -0,0 +1,1135 @@ +/* + * Copyright 2012 Vincent Sanders + * Copyright 2015 Daniel Dilverstone + * Copyright 2016 Michael Drake + * Copyright 2016 John-Mark Bell + * + * This file is part of NetSurf, http://www.netsurf-browser.org/ + * + * NetSurf is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * NetSurf is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +/** \file + * Duktapeish implementation of javascript engine functions. + */ + +#include + +#include + +#include "content/content.h" + +#include "utils/utils.h" +#include "utils/nsoption.h" +#include "utils/log.h" +#include "utils/corestrings.h" + +#include "javascript/js.h" +#include "javascript/content.h" + +#include "duktape/binding.h" + +#include "duktape.h" +#include "dukky.h" + +#include + +#define EVENT_MAGIC MAGIC(EVENT_MAP) +#define HANDLER_LISTENER_MAGIC MAGIC(HANDLER_LISTENER_MAP) +#define HANDLER_MAGIC MAGIC(HANDLER_MAP) + +static duk_ret_t dukky_populate_object(duk_context *ctx) +{ + /* ... obj args protoname nargs */ + int nargs = duk_get_int(ctx, -1); + duk_pop(ctx); + /* ... obj args protoname */ + duk_get_global_string(ctx, PROTO_MAGIC); + /* .. obj args protoname prototab */ + duk_insert(ctx, -2); + /* ... obj args prototab protoname */ + duk_get_prop(ctx, -2); + /* ... obj args prototab {proto/undefined} */ + if (duk_is_undefined(ctx, -1)) { + LOG("RuhRoh, couldn't find a prototype, HTMLUnknownElement it is"); + duk_pop(ctx); + duk_push_string(ctx, PROTO_NAME(HTMLUNKNOWNELEMENT)); + duk_get_prop(ctx, -2); + } + /* ... obj args prototab proto */ + duk_dup(ctx, -1); + /* ... obj args prototab proto proto */ + duk_set_prototype(ctx, -(nargs+4)); + /* ... obj[proto] args prototab proto */ + duk_get_prop_string(ctx, -1, INIT_MAGIC); + /* ... obj[proto] args prototab proto initfn */ + duk_insert(ctx, -(nargs+4)); + /* ... initfn obj[proto] args prototab proto */ + duk_pop_2(ctx); + /* ... initfn obj[proto] args */ + LOG("Call the init function"); + duk_call(ctx, nargs + 1); + return 1; /* The object */ +} + +duk_ret_t dukky_create_object(duk_context *ctx, const char *name, int args) +{ + duk_ret_t ret; + LOG("name=%s nargs=%d", name+2, args); + /* ... args */ + duk_push_object(ctx); + /* ... args obj */ + duk_push_object(ctx); + /* ... args obj handlers */ + duk_put_prop_string(ctx, -2, HANDLER_LISTENER_MAGIC); + /* ... args obj */ + duk_push_object(ctx); + /* ... args obj handlers */ + duk_put_prop_string(ctx, -2, HANDLER_MAGIC); + /* ... args obj */ + duk_insert(ctx, -(args+1)); + /* ... obj args */ + duk_push_string(ctx, name); + /* ... obj args name */ + duk_push_int(ctx, args); + /* ... obj args name nargs */ + if ((ret = duk_safe_call(ctx, dukky_populate_object, args + 3, 1)) + != DUK_EXEC_SUCCESS) + return ret; + LOG("created"); + return DUK_EXEC_SUCCESS; +} + + + +duk_bool_t +dukky_push_node_stacked(duk_context *ctx) +{ + int top_at_fail = duk_get_top(ctx) - 2; + /* ... nodeptr klass */ + duk_get_global_string(ctx, NODE_MAGIC); + /* ... nodeptr klass nodes */ + duk_dup(ctx, -3); + /* ... nodeptr klass nodes nodeptr */ + duk_get_prop(ctx, -2); + /* ... nodeptr klass nodes node/undefined */ + if (duk_is_undefined(ctx, -1)) { + /* ... nodeptr klass nodes undefined */ + duk_pop(ctx); + /* ... nodeptr klass nodes */ + duk_push_object(ctx); + /* ... nodeptr klass nodes obj */ + duk_push_object(ctx); + /* ... nodeptr klass nodes obj handlers */ + duk_put_prop_string(ctx, -2, HANDLER_LISTENER_MAGIC); + /* ... nodeptr klass nodes obj */ + duk_push_object(ctx); + /* ... nodeptr klass nodes obj handlers */ + duk_put_prop_string(ctx, -2, HANDLER_MAGIC); + /* ... nodeptr klass nodes obj */ + duk_dup(ctx, -4); + /* ... nodeptr klass nodes obj nodeptr */ + duk_dup(ctx, -4); + /* ... nodeptr klass nodes obj nodeptr klass */ + duk_push_int(ctx, 1); + /* ... nodeptr klass nodes obj nodeptr klass 1 */ + if (duk_safe_call(ctx, dukky_populate_object, 4, 1) + != DUK_EXEC_SUCCESS) { + duk_set_top(ctx, top_at_fail); + LOG("Boo and also hiss"); + return false; + } + /* ... nodeptr klass nodes node */ + duk_dup(ctx, -4); + /* ... nodeptr klass nodes node nodeptr */ + duk_dup(ctx, -2); + /* ... nodeptr klass nodes node nodeptr node */ + duk_put_prop(ctx, -4); + /* ... nodeptr klass nodes node */ + } + /* ... nodeptr klass nodes node */ + duk_insert(ctx, -4); + /* ... node nodeptr klass nodes */ + duk_pop_3(ctx); + /* ... node */ + return true; +} + +#define SET_HTML_CLASS(CLASS) \ + *html_class = PROTO_NAME(HTML##CLASS##ELEMENT); \ + *html_class_len = \ + SLEN(PROTO_NAME(HTML)) + \ + SLEN(#CLASS) + \ + SLEN("ELEMENT"); + +static void dukky_html_element_class_from_tag_type(dom_html_element_type type, + const char **html_class, size_t *html_class_len) +{ + switch(type) { + case DOM_HTML_ELEMENT_TYPE_HTML: + SET_HTML_CLASS(HTML) + break; + case DOM_HTML_ELEMENT_TYPE_HEAD: + SET_HTML_CLASS(HEAD) + break; + case DOM_HTML_ELEMENT_TYPE_META: + SET_HTML_CLASS(META) + break; + case DOM_HTML_ELEMENT_TYPE_BASE: + SET_HTML_CLASS(BASE) + break; + case DOM_HTML_ELEMENT_TYPE_TITLE: + SET_HTML_CLASS(TITLE) + break; + case DOM_HTML_ELEMENT_TYPE_BODY: + SET_HTML_CLASS(BODY) + break; + case DOM_HTML_ELEMENT_TYPE_DIV: + SET_HTML_CLASS(DIV) + break; + case DOM_HTML_ELEMENT_TYPE_FORM: + SET_HTML_CLASS(FORM) + break; + case DOM_HTML_ELEMENT_TYPE_LINK: + SET_HTML_CLASS(LINK) + break; + case DOM_HTML_ELEMENT_TYPE_BUTTON: + SET_HTML_CLASS(BUTTOM) + break; + case DOM_HTML_ELEMENT_TYPE_INPUT: + SET_HTML_CLASS(INPUT) + break; + case DOM_HTML_ELEMENT_TYPE_TEXTAREA: + SET_HTML_CLASS(TEXTAREA) + break; + case DOM_HTML_ELEMENT_TYPE_OPTGROUP: + SET_HTML_CLASS(OPTGROUP) + break; + case DOM_HTML_ELEMENT_TYPE_OPTION: + SET_HTML_CLASS(OPTION) + break; + case DOM_HTML_ELEMENT_TYPE_SELECT: + SET_HTML_CLASS(SELECT) + break; + case DOM_HTML_ELEMENT_TYPE_HR: + SET_HTML_CLASS(HR) + break; + case DOM_HTML_ELEMENT_TYPE_DL: + SET_HTML_CLASS(DLIST) + break; + case DOM_HTML_ELEMENT_TYPE_DIR: + SET_HTML_CLASS(DIRECTORY) + break; + case DOM_HTML_ELEMENT_TYPE_MENU: + SET_HTML_CLASS(MENU) + break; + case DOM_HTML_ELEMENT_TYPE_FIELDSET: + SET_HTML_CLASS(FIELDSET) + break; + case DOM_HTML_ELEMENT_TYPE_LEGEND: + SET_HTML_CLASS(LEGEND) + break; + case DOM_HTML_ELEMENT_TYPE_P: + SET_HTML_CLASS(PARAGRAPH) + break; + case DOM_HTML_ELEMENT_TYPE_H1: + case DOM_HTML_ELEMENT_TYPE_H2: + case DOM_HTML_ELEMENT_TYPE_H3: + case DOM_HTML_ELEMENT_TYPE_H4: + case DOM_HTML_ELEMENT_TYPE_H5: + case DOM_HTML_ELEMENT_TYPE_H6: + SET_HTML_CLASS(HEADING) + break; + case DOM_HTML_ELEMENT_TYPE_BLOCKQUOTE: + case DOM_HTML_ELEMENT_TYPE_Q: + SET_HTML_CLASS(QUOTE) + break; + case DOM_HTML_ELEMENT_TYPE_PRE: + SET_HTML_CLASS(PRE) + break; + case DOM_HTML_ELEMENT_TYPE_BR: + SET_HTML_CLASS(BR) + break; + case DOM_HTML_ELEMENT_TYPE_LABEL: + SET_HTML_CLASS(LABEL) + break; + case DOM_HTML_ELEMENT_TYPE_UL: + SET_HTML_CLASS(ULIST) + break; + case DOM_HTML_ELEMENT_TYPE_OL: + SET_HTML_CLASS(OLIST) + break; + case DOM_HTML_ELEMENT_TYPE_LI: + SET_HTML_CLASS(LI) + break; + case DOM_HTML_ELEMENT_TYPE_FONT: + SET_HTML_CLASS(FONT) + break; + case DOM_HTML_ELEMENT_TYPE_DEL: + case DOM_HTML_ELEMENT_TYPE_INS: + SET_HTML_CLASS(MOD) + break; + case DOM_HTML_ELEMENT_TYPE_A: + SET_HTML_CLASS(ANCHOR) + break; + case DOM_HTML_ELEMENT_TYPE_BASEFONT: + SET_HTML_CLASS(BASEFONT) + break; + case DOM_HTML_ELEMENT_TYPE_IMG: + SET_HTML_CLASS(IMAGE) + break; + case DOM_HTML_ELEMENT_TYPE_OBJECT: + SET_HTML_CLASS(OBJECT) + break; + case DOM_HTML_ELEMENT_TYPE_PARAM: + SET_HTML_CLASS(PARAM) + break; + case DOM_HTML_ELEMENT_TYPE_APPLET: + SET_HTML_CLASS(APPLET) + break; + case DOM_HTML_ELEMENT_TYPE_MAP: + SET_HTML_CLASS(MAP) + break; + case DOM_HTML_ELEMENT_TYPE_AREA: + SET_HTML_CLASS(AREA) + break; + case DOM_HTML_ELEMENT_TYPE_SCRIPT: + SET_HTML_CLASS(SCRIPT) + break; + case DOM_HTML_ELEMENT_TYPE_CAPTION: + SET_HTML_CLASS(TABLECAPTION) + break; + case DOM_HTML_ELEMENT_TYPE_TD: + case DOM_HTML_ELEMENT_TYPE_TH: + SET_HTML_CLASS(TABLECELL) + break; + case DOM_HTML_ELEMENT_TYPE_COL: + case DOM_HTML_ELEMENT_TYPE_COLGROUP: + SET_HTML_CLASS(TABLECOL) + break; + case DOM_HTML_ELEMENT_TYPE_THEAD: + case DOM_HTML_ELEMENT_TYPE_TBODY: + case DOM_HTML_ELEMENT_TYPE_TFOOT: + SET_HTML_CLASS(TABLESECTION) + break; + case DOM_HTML_ELEMENT_TYPE_TABLE: + SET_HTML_CLASS(TABLE) + break; + case DOM_HTML_ELEMENT_TYPE_TR: + SET_HTML_CLASS(TABLEROW) + break; + case DOM_HTML_ELEMENT_TYPE_STYLE: + SET_HTML_CLASS(STYLE) + break; + case DOM_HTML_ELEMENT_TYPE_FRAMESET: + SET_HTML_CLASS(FRAMESET) + break; + case DOM_HTML_ELEMENT_TYPE_FRAME: + SET_HTML_CLASS(FRAME) + break; + case DOM_HTML_ELEMENT_TYPE_IFRAME: + SET_HTML_CLASS(IFRAME) + break; + case DOM_HTML_ELEMENT_TYPE_ISINDEX: + SET_HTML_CLASS(ISINDEX) + break; + case DOM_HTML_ELEMENT_TYPE__COUNT: + assert(type != DOM_HTML_ELEMENT_TYPE__COUNT); + /* fallthrough */ + case DOM_HTML_ELEMENT_TYPE__UNKNOWN: + SET_HTML_CLASS(UNKNOWN) + break; + default: + /* Known HTML element without a specialisation */ + *html_class = PROTO_NAME(HTMLELEMENT); + *html_class_len = + SLEN(PROTO_NAME(HTML)) + + SLEN("ELEMENT"); + break; + } + return; +} + +#undef SET_HTML_CLASS + +static void +dukky_push_node_klass(duk_context *ctx, struct dom_node *node) +{ + dom_node_type nodetype; + dom_exception err; + + err = dom_node_get_node_type(node, &nodetype); + if (err != DOM_NO_ERR) { + /* Oh bum, just node then */ + duk_push_string(ctx, PROTO_NAME(NODE)); + return; + } + + switch(nodetype) { + case DOM_ELEMENT_NODE: { + dom_string *namespace; + dom_html_element_type type; + const char *html_class; + size_t html_class_len; + err = dom_node_get_namespace(node, &namespace); + if (err != DOM_NO_ERR) { + /* Feck it, element */ + LOG("dom_node_get_namespace() failed"); + duk_push_string(ctx, PROTO_NAME(ELEMENT)); + break; + } + if (namespace == NULL) { + /* No namespace, -> element */ + LOG("no namespace"); + duk_push_string(ctx, PROTO_NAME(ELEMENT)); + break; + } + + if (dom_string_isequal(namespace, corestring_dom_html_namespace) == false) { + /* definitely not an HTML element of some kind */ + duk_push_string(ctx, PROTO_NAME(ELEMENT)); + dom_string_unref(namespace); + break; + } + dom_string_unref(namespace); + + err = dom_html_element_get_tag_type(node, &type); + if (err != DOM_NO_ERR) { + type = DOM_HTML_ELEMENT_TYPE__UNKNOWN; + } + + dukky_html_element_class_from_tag_type(type, + &html_class, &html_class_len); + + duk_push_lstring(ctx, html_class, html_class_len); + break; + } + case DOM_TEXT_NODE: + duk_push_string(ctx, PROTO_NAME(TEXT)); + break; + case DOM_COMMENT_NODE: + duk_push_string(ctx, PROTO_NAME(COMMENT)); + break; + case DOM_DOCUMENT_NODE: + duk_push_string(ctx, PROTO_NAME(DOCUMENT)); + break; + case DOM_ATTRIBUTE_NODE: + case DOM_PROCESSING_INSTRUCTION_NODE: + case DOM_DOCUMENT_TYPE_NODE: + case DOM_DOCUMENT_FRAGMENT_NODE: + case DOM_NOTATION_NODE: + case DOM_ENTITY_REFERENCE_NODE: + case DOM_ENTITY_NODE: + case DOM_CDATA_SECTION_NODE: + default: + /* Oh bum, just node then */ + duk_push_string(ctx, PROTO_NAME(NODE)); + } +} + +duk_bool_t +dukky_push_node(duk_context *ctx, struct dom_node *node) +{ + JS_LOG("Pushing node %p", node); + /* First check if we can find the node */ + /* ... */ + duk_get_global_string(ctx, NODE_MAGIC); + /* ... nodes */ + duk_push_pointer(ctx, node); + /* ... nodes nodeptr */ + duk_get_prop(ctx, -2); + /* ... nodes node/undefined */ + if (!duk_is_undefined(ctx, -1)) { + /* ... nodes node */ + duk_insert(ctx, -2); + /* ... node nodes */ + duk_pop(ctx); + /* ... node */ + JS_LOG("Found it memoised"); + return true; + } + /* ... nodes undefined */ + duk_pop_2(ctx); + /* ... */ + /* We couldn't, so now we determine the node type and then + * we ask for it to be created + */ + duk_push_pointer(ctx, node); + /* ... nodeptr */ + dukky_push_node_klass(ctx, node); + /* ... nodeptr klass */ + return dukky_push_node_stacked(ctx); +} + +static duk_ret_t +dukky_bad_constructor(duk_context *ctx) +{ + duk_error(ctx, DUK_ERR_ERROR, "Bad constructor"); + return 0; +} + +void +dukky_inject_not_ctr(duk_context *ctx, int idx, const char *name) +{ + /* ... p[idx] ... proto */ + duk_push_c_function(ctx, dukky_bad_constructor, 0); + /* ... p[idx] ... proto cons */ + duk_insert(ctx, -2); + /* ... p[idx] ... cons proto */ + duk_put_prop_string(ctx, -2, "prototype"); + /* ... p[idx] ... cons[proto] */ + duk_put_prop_string(ctx, idx, name); + /* ... p ... */ + return; +} + +/* Duktape heap utility functions */ + +/* We need to override the defaults because not all platforms are fully ANSI + * compatible. E.g. RISC OS gets upset if we malloc or realloc a zero byte + * block, as do debugging tools such as Electric Fence by Bruce Perens. + */ + +static void *dukky_alloc_function(void *udata, duk_size_t size) +{ + if (size == 0) + return NULL; + + return malloc(size); +} + +static void *dukky_realloc_function(void *udata, void *ptr, duk_size_t size) +{ + if (ptr == NULL && size == 0) + return NULL; + + if (size == 0) { + free(ptr); + return NULL; + } + + return realloc(ptr, size); +} + +static void dukky_free_function(void *udata, void *ptr) +{ + if (ptr != NULL) + free(ptr); +} + + +/**************************************** js.h ******************************/ +struct jscontext { + duk_context *ctx; + duk_context *thread; + uint64_t exec_start_time; +}; + +#define CTX (ctx->thread) + +void js_initialise(void) +{ + /** TODO: Forces JS on for our testing, needs changing before a release + * lest we incur the wrath of others. + */ + /* Disabled force-on for forthcoming release */ + /* nsoption_set_bool(enable_javascript, true); + */ + javascript_init(); +} + +void js_finalise(void) +{ + /* NADA for now */ +} + +#define DUKKY_NEW_PROTOTYPE(klass, uklass, klass_name) \ + dukky_create_prototype(ctx, dukky_##klass##___proto, PROTO_NAME(uklass), klass_name) + +nserror js_newcontext(int timeout, jscallback *cb, void *cbctx, + jscontext **jsctx) +{ + duk_context *ctx; + jscontext *ret = calloc(1, sizeof(*ret)); + *jsctx = NULL; + LOG("Creating new duktape javascript context"); + if (ret == NULL) return NSERROR_NOMEM; + ctx = ret->ctx = duk_create_heap( + dukky_alloc_function, + dukky_realloc_function, + dukky_free_function, + ret, + NULL); + if (ret->ctx == NULL) { free(ret); return NSERROR_NOMEM; } + /* Create the prototype stuffs */ + duk_push_global_object(ctx); + duk_push_boolean(ctx, true); + duk_put_prop_string(ctx, -2, "protos"); + duk_put_global_string(ctx, PROTO_MAGIC); + /* Create prototypes here */ + dukky_create_prototypes(ctx); + + *jsctx = ret; + return NSERROR_OK; +} + +void js_destroycontext(jscontext *ctx) +{ + LOG("Destroying duktape javascript context"); + duk_destroy_heap(ctx->ctx); + free(ctx); +} + +jsobject *js_newcompartment(jscontext *ctx, void *win_priv, void *doc_priv) +{ + assert(ctx != NULL); + /* Pop any active thread off */ + LOG("Yay, new compartment, win_priv=%p, doc_priv=%p", win_priv, doc_priv); + duk_set_top(ctx->ctx, 0); + duk_push_thread(ctx->ctx); + ctx->thread = duk_require_context(ctx->ctx, -1); + duk_push_int(CTX, 0); + duk_push_int(CTX, 1); + duk_push_int(CTX, 2); + /* Manufacture a Window object */ + /* win_priv is a browser_window, doc_priv is an html content struct */ + duk_push_pointer(CTX, win_priv); + duk_push_pointer(CTX, doc_priv); + dukky_create_object(CTX, PROTO_NAME(WINDOW), 2); + duk_push_global_object(CTX); + duk_put_prop_string(CTX, -2, PROTO_MAGIC); + duk_set_global_object(CTX); + + /* Now we need to prepare our node mapping table */ + duk_push_object(CTX); + duk_push_pointer(CTX, NULL); + duk_push_null(CTX); + duk_put_prop(CTX, -3); + duk_put_global_string(CTX, NODE_MAGIC); + + /* And now the event mapping table */ + duk_push_object(CTX); + duk_put_global_string(CTX, EVENT_MAGIC); + + return (jsobject *)ctx; +} + +static duk_ret_t eval_top_string(duk_context *ctx) +{ + duk_eval(ctx); + return 0; +} + +duk_bool_t dukky_check_timeout(void *udata) +{ +#define JS_EXEC_TIMEOUT_MS 10000 /* 10 seconds */ + jscontext *ctx = (jscontext *) udata; + uint64_t now; + + (void) nsu_getmonotonic_ms(&now); + + /* This function may be called during duk heap construction, + * so only test for execution timeout if we've recorded a + * start time. + */ + return ctx->exec_start_time != 0 && + now > (ctx->exec_start_time + JS_EXEC_TIMEOUT_MS); +} + +bool js_exec(jscontext *ctx, const char *txt, size_t txtlen) +{ + assert(ctx); + if (txt == NULL || txtlen == 0) return false; + duk_set_top(CTX, 0); + duk_push_lstring(CTX, txt, txtlen); + + (void) nsu_getmonotonic_ms(&ctx->exec_start_time); + if (duk_safe_call(CTX, eval_top_string, 1, 1) == DUK_EXEC_ERROR) { + duk_get_prop_string(CTX, 0, "name"); + duk_get_prop_string(CTX, 0, "message"); + duk_get_prop_string(CTX, 0, "fileName"); + duk_get_prop_string(CTX, 0, "lineNumber"); + duk_get_prop_string(CTX, 0, "stack"); + LOG("Uncaught error in JS: %s: %s", duk_safe_to_string(CTX, 1), + duk_safe_to_string(CTX, 2)); + LOG(" was at: %s line %s", duk_safe_to_string(CTX, 3), + duk_safe_to_string(CTX, 4)); + LOG(" Stack trace: %s", duk_safe_to_string(CTX, 5)); + return false; + } + if (duk_get_top(CTX) == 0) duk_push_boolean(CTX, false); + LOG("Returning %s", duk_get_boolean(CTX, 0) ? "true" : "false"); + return duk_get_boolean(CTX, 0); +} + +/*** New style event handling ***/ + +static void dukky_push_event(duk_context *ctx, dom_event *evt) +{ + /* ... */ + duk_get_global_string(ctx, EVENT_MAGIC); + /* ... events */ + duk_push_pointer(ctx, evt); + /* ... events eventptr */ + duk_get_prop(ctx, -2); + /* ... events event? */ + if (duk_is_undefined(ctx, -1)) { + /* ... events undefined */ + duk_pop(ctx); + /* ... events */ + duk_push_pointer(ctx, evt); + if (dukky_create_object(ctx, PROTO_NAME(EVENT), 1) != DUK_EXEC_SUCCESS) { + /* ... events err */ + duk_pop(ctx); + /* ... events */ + duk_push_object(ctx); + /* ... events eobj[meh] */ + } + /* ... events eobj */ + duk_push_pointer(ctx, evt); + /* ... events eobj eventptr */ + duk_dup(ctx, -2); + /* ... events eobj eventptr eobj */ + duk_put_prop(ctx, -4); + /* ... events eobj */ + } + /* ... events event */ + duk_replace(ctx, -2); + /* ... event */ +} + +static void dukky_push_handler_code_(duk_context *ctx, dom_string *name, + dom_event_target *et) +{ + dom_string *onname, *val; + dom_element *ele = (dom_element *)et; + dom_exception exc; + dom_node_type ntype; + + /* Currently safe since libdom has no event targets which are not + * nodes. Reconsider this as and when we work out how to have + * window do stuff + */ + exc = dom_node_get_node_type(et, &ntype); + if (exc != DOM_NO_ERR) { + duk_push_lstring(ctx, "", 0); + return; + } + + if (ntype != DOM_ELEMENT_NODE) { + duk_push_lstring(ctx, "", 0); + return; + } + + exc = dom_string_concat(corestring_dom_on, name, &onname); + if (exc != DOM_NO_ERR) { + duk_push_lstring(ctx, "", 0); + return; + } + + exc = dom_element_get_attribute(ele, onname, &val); + if ((exc != DOM_NO_ERR) || (val == NULL)) { + dom_string_unref(onname); + duk_push_lstring(ctx, "", 0); + return; + } + + dom_string_unref(onname); + duk_push_lstring(ctx, dom_string_data(val), dom_string_length(val)); + dom_string_unref(val); +} + +bool dukky_get_current_value_of_event_handler(duk_context *ctx, + dom_string *name, + dom_event_target *et) +{ + /* Must be entered as: + * ... node(et) + */ + duk_get_prop_string(ctx, -1, HANDLER_MAGIC); + /* ... node handlers */ + duk_push_lstring(ctx, dom_string_data(name), dom_string_length(name)); + /* ... node handlers name */ + duk_get_prop(ctx, -2); + /* ... node handlers handler? */ + if (duk_is_undefined(ctx, -1)) { + /* ... node handlers undefined */ + duk_pop_2(ctx); + /* ... node */ + dukky_push_handler_code_(ctx, name, et); + /* ... node handlercode? */ + /* TODO: If this is null, clean up and propagate */ + /* ... node handlercode */ + /** @todo This is entirely wrong, but it's hard to get right */ + duk_push_string(ctx, "function (event) {"); + /* ... node handlercode prefix */ + duk_insert(ctx, -2); + /* ... node prefix handlercode */ + duk_push_string(ctx, "}"); + /* ... node prefix handlercode suffix */ + duk_concat(ctx, 3); + /* ... node fullhandlersrc */ + duk_push_string(ctx, "internal raw uncompiled handler"); + /* ... node fullhandlersrc filename */ + if (duk_pcompile(ctx, DUK_COMPILE_FUNCTION) != 0) { + /* ... node err */ + LOG("Unable to proceed with handler, could not compile"); + duk_pop_2(ctx); + return false; + } + /* ... node handler */ + duk_insert(ctx, -2); + /* ... handler node */ + } else { + /* ... node handlers handler */ + duk_insert(ctx, -3); + /* ... handler node handlers */ + duk_pop(ctx); + /* ... handler node */ + } + /* ... handler node */ + return true; +} + +static void dukky_generic_event_handler(dom_event *evt, void *pw) +{ + duk_memory_functions funcs; + duk_context *ctx = (duk_context *)pw; + jscontext *jsctx; + dom_string *name; + dom_exception exc; + dom_event_target *targ; + dom_event_flow_phase phase; + + /* Retrieve the JS context from the Duktape context */ + duk_get_memory_functions(ctx, &funcs); + jsctx = funcs.udata; + + LOG("WOOP WOOP, An event:"); + exc = dom_event_get_type(evt, &name); + if (exc != DOM_NO_ERR) { + LOG("Unable to find the event name"); + return; + } + LOG("Event's name is %*s", + dom_string_length(name), dom_string_data(name)); + exc = dom_event_get_event_phase(evt, &phase); + if (exc != DOM_NO_ERR) { + LOG("Unable to get event phase"); + return; + } + LOG("Event phase is: %s (%d)", + phase == DOM_CAPTURING_PHASE ? "capturing" : + phase == DOM_AT_TARGET ? "at-target" : + phase == DOM_BUBBLING_PHASE ? "bubbling" : + "unknown", (int)phase); + + exc = dom_event_get_current_target(evt, &targ); + if (exc != DOM_NO_ERR) { + dom_string_unref(name); + LOG("Unable to find the event target"); + return; + } + + /* ... */ + if (dukky_push_node(ctx, (dom_node *)targ) == false) { + dom_string_unref(name); + dom_node_unref(targ); + LOG("Unable to push JS node representation?!"); + return; + } + /* ... node */ + if (dukky_get_current_value_of_event_handler( + ctx, name, (dom_event_target *)targ) == false) { + dom_node_unref(targ); + dom_string_unref(name); + return; + } + /** @todo handle other kinds of event than the generic case */ + dom_node_unref(targ); + dom_string_unref(name); + /* ... handler node */ + dukky_push_event(ctx, evt); + /* ... handler node event */ + (void) nsu_getmonotonic_ms(&jsctx->exec_start_time); + if (duk_pcall_method(ctx, 1) != 0) { + /* Failed to run the method */ + /* ... err */ + LOG("OH NOES! An error running a callback. Meh."); + exc = dom_event_stop_immediate_propagation(evt); + if (exc != DOM_NO_ERR) + LOG("WORSE! could not stop propagation"); + duk_get_prop_string(ctx, -1, "name"); + duk_get_prop_string(ctx, -2, "message"); + duk_get_prop_string(ctx, -3, "fileName"); + duk_get_prop_string(ctx, -4, "lineNumber"); + duk_get_prop_string(ctx, -5, "stack"); + /* ... err name message fileName lineNumber stack */ + LOG("Uncaught error in JS: %s: %s", duk_safe_to_string(ctx, -5), + duk_safe_to_string(ctx, -4)); + LOG(" was at: %s line %s", duk_safe_to_string(ctx, -3), + duk_safe_to_string(ctx, -2)); + LOG(" Stack trace: %s", duk_safe_to_string(ctx, -1)); + + duk_pop_n(ctx, 6); + /* ... */ + return; + } + /* ... result */ + if (duk_is_boolean(ctx, -1) && + duk_to_boolean(ctx, -1) == 0) { + dom_event_prevent_default(evt); + } + duk_pop(ctx); + /* ... */ +} + +void dukky_register_event_listener_for(duk_context *ctx, + struct dom_element *ele, + dom_string *name) +{ + dom_event_listener *listen = NULL; + dom_exception exc; + + /* ... */ + if (dukky_push_node(ctx, (struct dom_node *)ele) == false) + return; + /* ... node */ + duk_get_prop_string(ctx, -1, HANDLER_LISTENER_MAGIC); + /* ... node handlers */ + duk_push_lstring(ctx, dom_string_data(name), dom_string_length(name)); + /* ... node handlers name */ + if (duk_has_prop(ctx, -2)) { + /* ... node handlers */ + duk_pop_2(ctx); + /* ... */ + return; + } + /* ... node handlers */ + duk_push_lstring(ctx, dom_string_data(name), dom_string_length(name)); + /* ... node handlers name */ + duk_push_boolean(ctx, true); + /* ... node handlers name true */ + duk_put_prop(ctx, -3); + /* ... node handlers */ + duk_pop_2(ctx); + /* ... */ + exc = dom_event_listener_create(dukky_generic_event_handler, ctx, + &listen); + if (exc != DOM_NO_ERR) return; + exc = dom_event_target_add_event_listener( + ele, name, listen, false); + if (exc != DOM_NO_ERR) { + LOG("Unable to register listener for %p.%*s", + ele, dom_string_length(name), dom_string_data(name)); + } else { + LOG("have registered listener for %p.%*s", + ele, dom_string_length(name), dom_string_data(name)); + } + dom_event_listener_unref(listen); +} + + +void js_handle_new_element(jscontext *ctx, struct dom_element *node) +{ + assert(ctx); + assert(node); + dom_namednodemap *map; + dom_exception exc; + dom_ulong idx; + dom_ulong siz; + dom_attr *attr = NULL; + dom_string *key = NULL; + dom_string *nodename; + duk_bool_t is_body = false; + + exc = dom_node_get_node_name(node, &nodename); + if (exc != DOM_NO_ERR) return; + + if (nodename == corestring_dom_BODY) + is_body = true; + + dom_string_unref(nodename); + + exc = dom_node_get_attributes(node, &map); + if (exc != DOM_NO_ERR) return; + if (map == NULL) return; + + exc = dom_namednodemap_get_length(map, &siz); + if (exc != DOM_NO_ERR) goto out; + + for (idx = 0; idx < siz; idx++) { + exc = dom_namednodemap_item(map, idx, &attr); + if (exc != DOM_NO_ERR) goto out; + exc = dom_attr_get_name(attr, &key); + if (exc != DOM_NO_ERR) goto out; + if (is_body && ( + key == corestring_dom_onblur || + key == corestring_dom_onerror || + key == corestring_dom_onfocus || + key == corestring_dom_onload || + key == corestring_dom_onresize || + key == corestring_dom_onscroll)) { + /* This is a forwarded event, it doesn't matter, + * we should skip registering for it and later + * we will register it for Window itself + */ + goto skip_register; + } + if (dom_string_length(key) > 2) { + /* Can be on* */ + const uint8_t *data = (const uint8_t *)dom_string_data(key); + if (data[0] == 'o' && data[1] == 'n') { + dom_string *sub = NULL; + exc = dom_string_substr( + key, 2, dom_string_length(key), + &sub); + if (exc == DOM_NO_ERR) { + dukky_register_event_listener_for( + CTX, node, sub); + dom_string_unref(sub); + } + } + } + skip_register: + dom_string_unref(key); key = NULL; + dom_node_unref(attr); attr = NULL; + } + +out: + if (key != NULL) + dom_string_unref(key); + + if (attr != NULL) + dom_node_unref(attr); + + dom_namednodemap_unref(map); +} + +void js_event_cleanup(jscontext *ctx, struct dom_event *evt) +{ + assert(ctx); + /* ... */ + duk_get_global_string(CTX, EVENT_MAGIC); + /* ... EVENT_MAP */ + duk_push_pointer(CTX, evt); + /* ... EVENT_MAP eventptr */ + duk_del_prop(CTX, -2); + /* ... EVENT_MAP */ + duk_pop(CTX); + /* ... */ +} + +bool js_fire_event(jscontext *ctx, const char *type, struct dom_document *doc, struct dom_node *target) +{ + dom_exception exc; + dom_event *evt; + dom_event_target *body; + + LOG("Event: %s (doc=%p, target=%p)", type, doc, target); + + /** @todo Make this more generic, this only handles load and only + * targetting the window, so that we actually stand a chance of + * getting 3.4 out. + */ + + if (target != NULL) + /* Swallow non-Window-targetted events quietly */ + return true; + + if (strcmp(type, "load") != 0) + /* Swallow non-load events quietly */ + return true; + + /* Okay, we're processing load, targetted at Window, do the single + * thing which gets us there, which is to find the appropriate event + * handler and call it. If we have no event handler on Window then + * we divert to the body, and if there's no event handler there + * we swallow the event silently + */ + + exc = dom_event_create(&evt); + if (exc != DOM_NO_ERR) return true; + exc = dom_event_init(evt, corestring_dom_load, false, false); + if (exc != DOM_NO_ERR) { + dom_event_unref(evt); + return true; + } + /* ... */ + duk_get_global_string(CTX, HANDLER_MAGIC); + /* ... handlers */ + duk_push_lstring(CTX, "load", 4); + /* ... handlers "load" */ + duk_get_prop(CTX, -2); + /* ... handlers handler? */ + if (duk_is_undefined(CTX, -1)) { + /* No handler here, *try* and retrieve a handler from + * the body + */ + duk_pop(CTX); + /* ... handlers */ + exc = dom_html_document_get_body(doc, &body); + if (exc != DOM_NO_ERR) { + dom_event_unref(evt); + return true; + } + dukky_push_node(CTX, (struct dom_node *)body); + /* ... handlers bodynode */ + if (dukky_get_current_value_of_event_handler( + CTX, corestring_dom_load, body) == false) { + /* ... handlers */ + duk_pop(CTX); + return true; + } + /* ... handlers handler bodynode */ + duk_pop(CTX); + } + /* ... handlers handler */ + duk_insert(CTX, -2); + /* ... handler handlers */ + duk_pop(CTX); + /* ... handler */ + duk_push_global_object(CTX); + /* ... handler Window */ + dukky_push_event(CTX, evt); + /* ... handler Window event */ + (void) nsu_getmonotonic_ms(&ctx->exec_start_time); + if (duk_pcall_method(CTX, 1) != 0) { + /* Failed to run the handler */ + /* ... err */ + LOG("OH NOES! An error running a handler. Meh."); + duk_get_prop_string(CTX, -1, "name"); + duk_get_prop_string(CTX, -2, "message"); + duk_get_prop_string(CTX, -3, "fileName"); + duk_get_prop_string(CTX, -4, "lineNumber"); + duk_get_prop_string(CTX, -5, "stack"); + /* ... err name message fileName lineNumber stack */ + LOG("Uncaught error in JS: %s: %s", duk_safe_to_string(CTX, -5), + duk_safe_to_string(CTX, -4)); + LOG(" was at: %s line %s", duk_safe_to_string(CTX, -3), + duk_safe_to_string(CTX, -2)); + LOG(" Stack trace: %s", duk_safe_to_string(CTX, -1)); + + duk_pop_n(CTX, 6); + /* ... */ + js_event_cleanup(ctx, evt); + dom_event_unref(evt); + return true; + } + /* ... result */ + duk_pop(CTX); + /* ... */ + js_event_cleanup(ctx, evt); + dom_event_unref(evt); + return true; +} diff --git a/content/handlers/javascript/duktape/dukky.h b/content/handlers/javascript/duktape/dukky.h new file mode 100644 index 000000000..0c3ff0e25 --- /dev/null +++ b/content/handlers/javascript/duktape/dukky.h @@ -0,0 +1,45 @@ +/* + * Copyright 2012 Vincent Sanders + * Copyright 2015 Daniel Dilverstone + * Copyright 2016 Michael Drake + * + * This file is part of NetSurf, http://www.netsurf-browser.org/ + * + * NetSurf is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * NetSurf is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +/** \file + * Duktapeish implementation of javascript engine functions, prototypes. + */ + +#ifndef DUKKY_H +#define DUKKY_H + +#ifdef JS_DEBUG +# define JS_LOG(format, args...) LOG(format , ##args) +#else +# define JS_LOG(format, ...) ((void) 0) +#endif + +duk_ret_t dukky_create_object(duk_context *ctx, const char *name, int args); +duk_bool_t dukky_push_node_stacked(duk_context *ctx); +duk_bool_t dukky_push_node(duk_context *ctx, struct dom_node *node); +void dukky_inject_not_ctr(duk_context *ctx, int idx, const char *name); +void dukky_register_event_listener_for(duk_context *ctx, + struct dom_element *ele, + dom_string *name); +bool dukky_get_current_value_of_event_handler(duk_context *ctx, + dom_string *name, + dom_event_target *et); + +#endif diff --git a/content/handlers/javascript/duktape/duktape.c b/content/handlers/javascript/duktape/duktape.c new file mode 100644 index 000000000..eb4c77a04 --- /dev/null +++ b/content/handlers/javascript/duktape/duktape.c @@ -0,0 +1,86513 @@ +/* Omit from static analysis. */ +#ifndef __clang_analyzer__ +/* + * Single source autogenerated distributable for Duktape 1.5.0. + * + * Git commit 83d557704ee63f68ab40b6fcb00995c9b3d6777c (v1.5.0). + * Git branch master. + * + * See Duktape AUTHORS.rst and LICENSE.txt for copyright and + * licensing information. + */ + +/* LICENSE.txt */ +/* +* =============== +* Duktape license +* =============== +* +* (http://opensource.org/licenses/MIT) +* +* Copyright (c) 2013-2016 by Duktape authors (see AUTHORS.rst) +* +* Permission is hereby granted, free of charge, to any person obtaining a copy +* of this software and associated documentation files (the "Software"), to deal +* in the Software without restriction, including without limitation the rights +* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +* copies of the Software, and to permit persons to whom the Software is +* furnished to do so, subject to the following conditions: +* +* The above copyright notice and this permission notice shall be included in +* all copies or substantial portions of the Software. +* +* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN +* THE SOFTWARE. +*/ +/* AUTHORS.rst */ +/* +* =============== +* Duktape authors +* =============== +* +* Copyright +* ========= +* +* Duktape copyrights are held by its authors. Each author has a copyright +* to their contribution, and agrees to irrevocably license the contribution +* under the Duktape ``LICENSE.txt``. +* +* Authors +* ======= +* +* Please include an e-mail address, a link to your GitHub profile, or something +* similar to allow your contribution to be identified accurately. +* +* The following people have contributed code, website contents, or Wiki contents, +* and agreed to irrevocably license their contributions under the Duktape +* ``LICENSE.txt`` (in order of appearance): +* +* * Sami Vaarala +* * Niki Dobrev +* * Andreas \u00d6man +* * L\u00e1szl\u00f3 Lang\u00f3 +* * Legimet +* * Karl Skomski +* * Bruce Pascoe +* * Ren\u00e9 Hollander +* * Julien Hamaide (https://github.com/crazyjul) +* * Sebastian G\u00f6tte (https://github.com/jaseg) +* +* Other contributions +* =================== +* +* The following people have contributed something other than code (e.g. reported +* bugs, provided ideas, etc; roughly in order of appearance): +* +* * Greg Burns +* * Anthony Rabine +* * Carlos Costa +* * Aur\u00e9lien Bouilland +* * Preet Desai (Pris Matic) +* * judofyr (http://www.reddit.com/user/judofyr) +* * Jason Woofenden +* * Micha\u0142 Przyby\u015b +* * Anthony Howe +* * Conrad Pankoff +* * Jim Schimpf +* * Rajaran Gaunker (https://github.com/zimbabao) +* * Andreas \u00d6man +* * Doug Sanden +* * Josh Engebretson (https://github.com/JoshEngebretson) +* * Remo Eichenberger (https://github.com/remoe) +* * Mamod Mehyar (https://github.com/mamod) +* * David Demelier (https://github.com/markand) +* * Tim Caswell (https://github.com/creationix) +* * Mitchell Blank Jr (https://github.com/mitchblank) +* * https://github.com/yushli +* * Seo Sanghyeon (https://github.com/sanxiyn) +* * Han ChoongWoo (https://github.com/tunz) +* * Joshua Peek (https://github.com/josh) +* * Bruce E. Pascoe (https://github.com/fatcerberus) +* * https://github.com/Kelledin +* * https://github.com/sstruchtrup +* * Michael Drake (https://github.com/tlsa) +* * https://github.com/chris-y +* * Laurent Zubiaur (https://github.com/lzubiaur) +* * Ole Andr\u00e9 Vadla Ravn\u00e5s (https://github.com/oleavr) +* +* If you are accidentally missing from this list, send me an e-mail +* (``sami.vaarala@iki.fi``) and I'll fix the omission. +*/ +#line 1 "duk_internal.h" +/* + * Top-level include file to be used for all (internal) source files. + * + * Source files should not include individual header files, as they + * have not been designed to be individually included. + */ + +#ifndef DUK_INTERNAL_H_INCLUDED +#define DUK_INTERNAL_H_INCLUDED + +/* + * The 'duktape.h' header provides the public API, but also handles all + * compiler and platform specific feature detection, Duktape feature + * resolution, inclusion of system headers, etc. These have been merged + * because the public API is also dependent on e.g. detecting appropriate + * C types which is quite platform/compiler specific especially for a non-C99 + * build. The public API is also dependent on the resolved feature set. + * + * Some actions taken by the merged header (such as including system headers) + * are not appropriate for building a user application. The define + * DUK_COMPILING_DUKTAPE allows the merged header to skip/include some + * sections depending on what is being built. + */ + +#define DUK_COMPILING_DUKTAPE +#include "duktape.h" + +/* + * User declarations, e.g. prototypes for user functions used by Duktape + * macros. Concretely, if DUK_USE_PANIC_HANDLER is used and the macro + * value calls a user function, it needs to be declared for Duktape + * compilation to avoid warnings. + */ + +DUK_USE_USER_DECLARE() + +/* + * Duktape includes (other than duk_features.h) + * + * The header files expect to be included in an order which satisfies header + * dependencies correctly (the headers themselves don't include any other + * includes). Forward declarations are used to break circular struct/typedef + * dependencies. + */ + +#line 1 "duk_replacements.h" +#ifndef DUK_REPLACEMENTS_H_INCLUDED +#define DUK_REPLACEMENTS_H_INCLUDED + +#if !defined(DUK_SINGLE_FILE) +#if defined(DUK_USE_COMPUTED_INFINITY) +DUK_INTERNAL_DECL double duk_computed_infinity; +#endif +#if defined(DUK_USE_COMPUTED_NAN) +DUK_INTERNAL_DECL double duk_computed_nan; +#endif +#if defined(DUK_USE_REPL_FPCLASSIFY) +DUK_INTERNAL_DECL int duk_repl_fpclassify(double x); +#endif +#if defined(DUK_USE_REPL_SIGNBIT) +DUK_INTERNAL_DECL int duk_repl_signbit(double x); +#endif +#if defined(DUK_USE_REPL_ISFINITE) +DUK_INTERNAL_DECL int duk_repl_isfinite(double x); +#endif +#if defined(DUK_USE_REPL_ISNAN) +DUK_INTERNAL_DECL int duk_repl_isnan(double x); +#endif +#if defined(DUK_USE_REPL_ISINF) +DUK_INTERNAL_DECL int duk_repl_isinf(double x); +#endif +#endif /* !DUK_SINGLE_FILE */ + +#endif /* DUK_REPLACEMENTS_H_INCLUDED */ +#line 1 "duk_jmpbuf.h" +/* + * Wrapper for jmp_buf. + * + * This is used because jmp_buf is an array type for backward compatibility. + * Wrapping jmp_buf in a struct makes pointer references, sizeof, etc, + * behave more intuitively. + * + * http://en.wikipedia.org/wiki/Setjmp.h#Member_types + */ + +#ifndef DUK_JMPBUF_H_INCLUDED +#define DUK_JMPBUF_H_INCLUDED + +#if defined(DUK_USE_CPP_EXCEPTIONS) +struct duk_jmpbuf { + duk_small_int_t dummy; /* unused */ +}; +#else +struct duk_jmpbuf { + DUK_JMPBUF_TYPE jb; +}; +#endif + +#endif /* DUK_JMPBUF_H_INCLUDED */ +#line 1 "duk_exception.h" +/* + * Exception for Duktape internal throws when C++ exceptions are used + * for long control transfers. + * + * Doesn't inherit from any exception base class to minimize the chance + * that user code would accidentally catch this exception. + */ + +#ifndef DUK_EXCEPTION_H_INCLUDED +#define DUK_EXCEPTION_H_INCLUDED + +#if defined(DUK_USE_CPP_EXCEPTIONS) +class duk_internal_exception { + /* intentionally empty */ +}; +#endif + +#endif /* DUK_EXCEPTION_H_INCLUDED */ +#line 1 "duk_forwdecl.h" +/* + * Forward declarations for all Duktape structures. + */ + +#ifndef DUK_FORWDECL_H_INCLUDED +#define DUK_FORWDECL_H_INCLUDED + +/* + * Forward declarations + */ + +#if defined(DUK_USE_CPP_EXCEPTIONS) +class duk_internal_exception; +#else +struct duk_jmpbuf; +#endif + +/* duk_tval intentionally skipped */ +struct duk_heaphdr; +struct duk_heaphdr_string; +struct duk_hstring; +struct duk_hstring_external; +struct duk_hobject; +struct duk_hcompiledfunction; +struct duk_hnativefunction; +struct duk_hthread; +struct duk_hbufferobject; +struct duk_hbuffer; +struct duk_hbuffer_fixed; +struct duk_hbuffer_dynamic; +struct duk_hbuffer_external; + +struct duk_propaccessor; +union duk_propvalue; +struct duk_propdesc; + +struct duk_heap; +struct duk_breakpoint; + +struct duk_activation; +struct duk_catcher; +struct duk_strcache; +struct duk_ljstate; +struct duk_strtab_entry; + +#ifdef DUK_USE_DEBUG +struct duk_fixedbuffer; +#endif + +struct duk_bitdecoder_ctx; +struct duk_bitencoder_ctx; +struct duk_bufwriter_ctx; + +struct duk_token; +struct duk_re_token; +struct duk_lexer_point; +struct duk_lexer_ctx; +struct duk_lexer_codepoint; + +struct duk_compiler_instr; +struct duk_compiler_func; +struct duk_compiler_ctx; + +struct duk_re_matcher_ctx; +struct duk_re_compiler_ctx; + +#if defined(DUK_USE_CPP_EXCEPTIONS) +/* no typedef */ +#else +typedef struct duk_jmpbuf duk_jmpbuf; +#endif + +/* duk_tval intentionally skipped */ +typedef struct duk_heaphdr duk_heaphdr; +typedef struct duk_heaphdr_string duk_heaphdr_string; +typedef struct duk_hstring duk_hstring; +typedef struct duk_hstring_external duk_hstring_external; +typedef struct duk_hobject duk_hobject; +typedef struct duk_hcompiledfunction duk_hcompiledfunction; +typedef struct duk_hnativefunction duk_hnativefunction; +typedef struct duk_hbufferobject duk_hbufferobject; +typedef struct duk_hthread duk_hthread; +typedef struct duk_hbuffer duk_hbuffer; +typedef struct duk_hbuffer_fixed duk_hbuffer_fixed; +typedef struct duk_hbuffer_dynamic duk_hbuffer_dynamic; +typedef struct duk_hbuffer_external duk_hbuffer_external; + +typedef struct duk_propaccessor duk_propaccessor; +typedef union duk_propvalue duk_propvalue; +typedef struct duk_propdesc duk_propdesc; + +typedef struct duk_heap duk_heap; +typedef struct duk_breakpoint duk_breakpoint; + +typedef struct duk_activation duk_activation; +typedef struct duk_catcher duk_catcher; +typedef struct duk_strcache duk_strcache; +typedef struct duk_ljstate duk_ljstate; +typedef struct duk_strtab_entry duk_strtab_entry; + +#ifdef DUK_USE_DEBUG +typedef struct duk_fixedbuffer duk_fixedbuffer; +#endif + +typedef struct duk_bitdecoder_ctx duk_bitdecoder_ctx; +typedef struct duk_bitencoder_ctx duk_bitencoder_ctx; +typedef struct duk_bufwriter_ctx duk_bufwriter_ctx; + +typedef struct duk_token duk_token; +typedef struct duk_re_token duk_re_token; +typedef struct duk_lexer_point duk_lexer_point; +typedef struct duk_lexer_ctx duk_lexer_ctx; +typedef struct duk_lexer_codepoint duk_lexer_codepoint; + +typedef struct duk_compiler_instr duk_compiler_instr; +typedef struct duk_compiler_func duk_compiler_func; +typedef struct duk_compiler_ctx duk_compiler_ctx; + +typedef struct duk_re_matcher_ctx duk_re_matcher_ctx; +typedef struct duk_re_compiler_ctx duk_re_compiler_ctx; + +#endif /* DUK_FORWDECL_H_INCLUDED */ +#line 1 "duk_tval.h" +/* + * Tagged type definition (duk_tval) and accessor macros. + * + * Access all fields through the accessor macros, as the representation + * is quite tricky. + * + * There are two packed type alternatives: an 8-byte representation + * based on an IEEE double (preferred for compactness), and a 12-byte + * representation (portability). The latter is needed also in e.g. + * 64-bit environments (it usually pads to 16 bytes per value). + * + * Selecting the tagged type format involves many trade-offs (memory + * use, size and performance of generated code, portability, etc), + * see doc/types.rst for a detailed discussion (especially of how the + * IEEE double format is used to pack tagged values). + * + * NB: because macro arguments are often expressions, macros should + * avoid evaluating their argument more than once. + */ + +#ifndef DUK_TVAL_H_INCLUDED +#define DUK_TVAL_H_INCLUDED + +/* sanity */ +#if !defined(DUK_USE_DOUBLE_LE) && !defined(DUK_USE_DOUBLE_ME) && !defined(DUK_USE_DOUBLE_BE) +#error unsupported: cannot determine byte order variant +#endif + +#if defined(DUK_USE_PACKED_TVAL) +/* ======================================================================== */ + +/* + * Packed 8-byte representation + */ + +/* use duk_double_union as duk_tval directly */ +typedef union duk_double_union duk_tval; + +/* tags */ +#define DUK_TAG_NORMALIZED_NAN 0x7ff8UL /* the NaN variant we use */ +/* avoid tag 0xfff0, no risk of confusion with negative infinity */ +#if defined(DUK_USE_FASTINT) +#define DUK_TAG_FASTINT 0xfff1UL /* embed: integer value */ +#endif +#define DUK_TAG_UNUSED 0xfff2UL /* marker; not actual tagged value */ +#define DUK_TAG_UNDEFINED 0xfff3UL /* embed: nothing */ +#define DUK_TAG_NULL 0xfff4UL /* embed: nothing */ +#define DUK_TAG_BOOLEAN 0xfff5UL /* embed: 0 or 1 (false or true) */ +/* DUK_TAG_NUMBER would logically go here, but it has multiple 'tags' */ +#define DUK_TAG_POINTER 0xfff6UL /* embed: void ptr */ +#define DUK_TAG_LIGHTFUNC 0xfff7UL /* embed: func ptr */ +#define DUK_TAG_STRING 0xfff8UL /* embed: duk_hstring ptr */ +#define DUK_TAG_OBJECT 0xfff9UL /* embed: duk_hobject ptr */ +#define DUK_TAG_BUFFER 0xfffaUL /* embed: duk_hbuffer ptr */ + +/* for convenience */ +#define DUK_XTAG_BOOLEAN_FALSE 0xfff50000UL +#define DUK_XTAG_BOOLEAN_TRUE 0xfff50001UL + +/* two casts to avoid gcc warning: "warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]" */ +#if defined(DUK_USE_64BIT_OPS) +#if defined(DUK_USE_DOUBLE_ME) +#define DUK__TVAL_SET_TAGGEDPOINTER(v,h,tag) do { \ + (v)->ull[DUK_DBL_IDX_ULL0] = (((duk_uint64_t) (tag)) << 16) | (((duk_uint64_t) (duk_uint32_t) (h)) << 32); \ + } while (0) +#else +#define DUK__TVAL_SET_TAGGEDPOINTER(v,h,tag) do { \ + (v)->ull[DUK_DBL_IDX_ULL0] = (((duk_uint64_t) (tag)) << 48) | ((duk_uint64_t) (duk_uint32_t) (h)); \ + } while (0) +#endif +#else /* DUK_USE_64BIT_OPS */ +#define DUK__TVAL_SET_TAGGEDPOINTER(v,h,tag) do { \ + (v)->ui[DUK_DBL_IDX_UI0] = ((duk_uint32_t) (tag)) << 16; \ + (v)->ui[DUK_DBL_IDX_UI1] = (duk_uint32_t) (h); \ + } while (0) +#endif /* DUK_USE_64BIT_OPS */ + +#if defined(DUK_USE_64BIT_OPS) +/* Double casting for pointer to avoid gcc warning (cast from pointer to integer of different size) */ +#if defined(DUK_USE_DOUBLE_ME) +#define DUK__TVAL_SET_LIGHTFUNC(v,fp,flags) do { \ + (v)->ull[DUK_DBL_IDX_ULL0] = (((duk_uint64_t) DUK_TAG_LIGHTFUNC) << 16) | \ + ((duk_uint64_t) (flags)) | \ + (((duk_uint64_t) (duk_uint32_t) (fp)) << 32); \ + } while (0) +#else +#define DUK__TVAL_SET_LIGHTFUNC(v,fp,flags) do { \ + (v)->ull[DUK_DBL_IDX_ULL0] = (((duk_uint64_t) DUK_TAG_LIGHTFUNC) << 48) | \ + (((duk_uint64_t) (flags)) << 32) | \ + ((duk_uint64_t) (duk_uint32_t) (fp)); \ + } while (0) +#endif +#else /* DUK_USE_64BIT_OPS */ +#define DUK__TVAL_SET_LIGHTFUNC(v,fp,flags) do { \ + (v)->ui[DUK_DBL_IDX_UI0] = (((duk_uint32_t) DUK_TAG_LIGHTFUNC) << 16) | ((duk_uint32_t) (flags)); \ + (v)->ui[DUK_DBL_IDX_UI1] = (duk_uint32_t) (fp); \ + } while (0) +#endif /* DUK_USE_64BIT_OPS */ + +#if defined(DUK_USE_FASTINT) +/* Note: masking is done for 'i' to deal with negative numbers correctly */ +#if defined(DUK_USE_DOUBLE_ME) +#define DUK__TVAL_SET_FASTINT(v,i) do { \ + (v)->ui[DUK_DBL_IDX_UI0] = ((duk_uint32_t) DUK_TAG_FASTINT) << 16 | (((duk_uint32_t) ((i) >> 32)) & 0x0000ffffUL); \ + (v)->ui[DUK_DBL_IDX_UI1] = (duk_uint32_t) (i); \ + } while (0) +#define DUK__TVAL_SET_FASTINT_U32(v,i) do { \ + (v)->ui[DUK_DBL_IDX_UI0] = ((duk_uint32_t) DUK_TAG_FASTINT) << 16; \ + (v)->ui[DUK_DBL_IDX_UI1] = (duk_uint32_t) (i); \ + } while (0) +#else +#define DUK__TVAL_SET_FASTINT(v,i) do { \ + (v)->ull[DUK_DBL_IDX_ULL0] = (((duk_uint64_t) DUK_TAG_FASTINT) << 48) | (((duk_uint64_t) (i)) & 0x0000ffffffffffffULL); \ + } while (0) +#define DUK__TVAL_SET_FASTINT_U32(v,i) do { \ + (v)->ull[DUK_DBL_IDX_ULL0] = (((duk_uint64_t) DUK_TAG_FASTINT) << 48) | (duk_uint64_t) (i); \ + } while (0) +#endif + +#define DUK__TVAL_SET_FASTINT_I32(v,i) do { \ + duk_int64_t duk__tmp = (duk_int64_t) (i); \ + DUK_TVAL_SET_FASTINT((v), duk__tmp); \ + } while (0) + +/* XXX: clumsy sign extend and masking of 16 topmost bits */ +#if defined(DUK_USE_DOUBLE_ME) +#define DUK__TVAL_GET_FASTINT(v) (((duk_int64_t) ((((duk_uint64_t) (v)->ui[DUK_DBL_IDX_UI0]) << 32) | ((duk_uint64_t) (v)->ui[DUK_DBL_IDX_UI1]))) << 16 >> 16) +#else +#define DUK__TVAL_GET_FASTINT(v) ((((duk_int64_t) (v)->ull[DUK_DBL_IDX_ULL0]) << 16) >> 16) +#endif +#define DUK__TVAL_GET_FASTINT_U32(v) ((v)->ui[DUK_DBL_IDX_UI1]) +#define DUK__TVAL_GET_FASTINT_I32(v) ((duk_int32_t) (v)->ui[DUK_DBL_IDX_UI1]) +#endif /* DUK_USE_FASTINT */ + +#define DUK_TVAL_SET_UNDEFINED(v) do { \ + (v)->us[DUK_DBL_IDX_US0] = (duk_uint16_t) DUK_TAG_UNDEFINED; \ + } while (0) +#define DUK_TVAL_SET_UNUSED(v) do { \ + (v)->us[DUK_DBL_IDX_US0] = (duk_uint16_t) DUK_TAG_UNUSED; \ + } while (0) +#define DUK_TVAL_SET_NULL(v) do { \ + (v)->us[DUK_DBL_IDX_US0] = (duk_uint16_t) DUK_TAG_NULL; \ + } while (0) + +#define DUK_TVAL_SET_BOOLEAN(v,val) DUK_DBLUNION_SET_HIGH32((v), (((duk_uint32_t) DUK_TAG_BOOLEAN) << 16) | ((duk_uint32_t) (val))) + +#define DUK_TVAL_SET_NAN(v) DUK_DBLUNION_SET_NAN_FULL((v)) + +/* Assumes that caller has normalized NaNs, otherwise trouble ahead. */ +#if defined(DUK_USE_FASTINT) +#define DUK_TVAL_SET_DOUBLE(v,d) do { \ + duk_double_t duk__dblval; \ + duk__dblval = (d); \ + DUK_ASSERT_DOUBLE_IS_NORMALIZED(duk__dblval); \ + DUK_DBLUNION_SET_DOUBLE((v), duk__dblval); \ + } while (0) +#define DUK_TVAL_SET_FASTINT(v,i) DUK__TVAL_SET_FASTINT((v), (i)) +#define DUK_TVAL_SET_FASTINT_I32(v,i) DUK__TVAL_SET_FASTINT_I32((v), (i)) +#define DUK_TVAL_SET_FASTINT_U32(v,i) DUK__TVAL_SET_FASTINT_U32((v), (i)) +#define DUK_TVAL_SET_NUMBER_CHKFAST(v,d) duk_tval_set_number_chkfast((v), (d)) +#define DUK_TVAL_SET_NUMBER(v,d) DUK_TVAL_SET_DOUBLE((v), (d)) +#define DUK_TVAL_CHKFAST_INPLACE(v) do { \ + duk_tval *duk__tv; \ + duk_double_t duk__d; \ + duk__tv = (v); \ + if (DUK_TVAL_IS_DOUBLE(duk__tv)) { \ + duk__d = DUK_TVAL_GET_DOUBLE(duk__tv); \ + DUK_TVAL_SET_NUMBER_CHKFAST(duk__tv, duk__d); \ + } \ + } while (0) +#else +#define DUK_TVAL_SET_DOUBLE(v,d) do { \ + duk_double_t duk__dblval; \ + duk__dblval = (d); \ + DUK_ASSERT_DOUBLE_IS_NORMALIZED(duk__dblval); \ + DUK_DBLUNION_SET_DOUBLE((v), duk__dblval); \ + } while (0) +#define DUK_TVAL_SET_FASTINT(v,i) DUK_TVAL_SET_DOUBLE((v), (duk_double_t) (i)) /* XXX: fast int-to-double */ +#define DUK_TVAL_SET_FASTINT_I32(v,i) DUK_TVAL_SET_DOUBLE((v), (duk_double_t) (i)) +#define DUK_TVAL_SET_FASTINT_U32(v,i) DUK_TVAL_SET_DOUBLE((v), (duk_double_t) (i)) +#define DUK_TVAL_SET_NUMBER_CHKFAST(v,d) DUK_TVAL_SET_DOUBLE((v), (d)) +#define DUK_TVAL_SET_NUMBER(v,d) DUK_TVAL_SET_DOUBLE((v), (d)) +#define DUK_TVAL_CHKFAST_INPLACE(v) do { } while (0) +#endif + +#define DUK_TVAL_SET_LIGHTFUNC(v,fp,flags) DUK__TVAL_SET_LIGHTFUNC((v), (fp), (flags)) +#define DUK_TVAL_SET_STRING(v,h) DUK__TVAL_SET_TAGGEDPOINTER((v), (h), DUK_TAG_STRING) +#define DUK_TVAL_SET_OBJECT(v,h) DUK__TVAL_SET_TAGGEDPOINTER((v), (h), DUK_TAG_OBJECT) +#define DUK_TVAL_SET_BUFFER(v,h) DUK__TVAL_SET_TAGGEDPOINTER((v), (h), DUK_TAG_BUFFER) +#define DUK_TVAL_SET_POINTER(v,p) DUK__TVAL_SET_TAGGEDPOINTER((v), (p), DUK_TAG_POINTER) + +#define DUK_TVAL_SET_TVAL(v,x) do { *(v) = *(x); } while (0) + +/* getters */ +#define DUK_TVAL_GET_BOOLEAN(v) ((int) (v)->us[DUK_DBL_IDX_US1]) +#if defined(DUK_USE_FASTINT) +#define DUK_TVAL_GET_DOUBLE(v) ((v)->d) +#define DUK_TVAL_GET_FASTINT(v) DUK__TVAL_GET_FASTINT((v)) +#define DUK_TVAL_GET_FASTINT_U32(v) DUK__TVAL_GET_FASTINT_U32((v)) +#define DUK_TVAL_GET_FASTINT_I32(v) DUK__TVAL_GET_FASTINT_I32((v)) +#define DUK_TVAL_GET_NUMBER(v) duk_tval_get_number_packed((v)) +#else +#define DUK_TVAL_GET_NUMBER(v) ((v)->d) +#define DUK_TVAL_GET_DOUBLE(v) ((v)->d) +#endif +#define DUK_TVAL_GET_LIGHTFUNC(v,out_fp,out_flags) do { \ + (out_flags) = (v)->ui[DUK_DBL_IDX_UI0] & 0xffffUL; \ + (out_fp) = (duk_c_function) (v)->ui[DUK_DBL_IDX_UI1]; \ + } while (0) +#define DUK_TVAL_GET_LIGHTFUNC_FUNCPTR(v) ((duk_c_function) ((v)->ui[DUK_DBL_IDX_UI1])) +#define DUK_TVAL_GET_LIGHTFUNC_FLAGS(v) (((int) (v)->ui[DUK_DBL_IDX_UI0]) & 0xffffUL) +#define DUK_TVAL_GET_STRING(v) ((duk_hstring *) (v)->vp[DUK_DBL_IDX_VP1]) +#define DUK_TVAL_GET_OBJECT(v) ((duk_hobject *) (v)->vp[DUK_DBL_IDX_VP1]) +#define DUK_TVAL_GET_BUFFER(v) ((duk_hbuffer *) (v)->vp[DUK_DBL_IDX_VP1]) +#define DUK_TVAL_GET_POINTER(v) ((void *) (v)->vp[DUK_DBL_IDX_VP1]) +#define DUK_TVAL_GET_HEAPHDR(v) ((duk_heaphdr *) (v)->vp[DUK_DBL_IDX_VP1]) + +/* decoding */ +#define DUK_TVAL_GET_TAG(v) ((duk_small_uint_t) (v)->us[DUK_DBL_IDX_US0]) + +#define DUK_TVAL_IS_UNDEFINED(v) (DUK_TVAL_GET_TAG((v)) == DUK_TAG_UNDEFINED) +#define DUK_TVAL_IS_UNUSED(v) (DUK_TVAL_GET_TAG((v)) == DUK_TAG_UNUSED) +#define DUK_TVAL_IS_NULL(v) (DUK_TVAL_GET_TAG((v)) == DUK_TAG_NULL) +#define DUK_TVAL_IS_BOOLEAN(v) (DUK_TVAL_GET_TAG((v)) == DUK_TAG_BOOLEAN) +#define DUK_TVAL_IS_BOOLEAN_TRUE(v) ((v)->ui[DUK_DBL_IDX_UI0] == DUK_XTAG_BOOLEAN_TRUE) +#define DUK_TVAL_IS_BOOLEAN_FALSE(v) ((v)->ui[DUK_DBL_IDX_UI0] == DUK_XTAG_BOOLEAN_FALSE) +#define DUK_TVAL_IS_LIGHTFUNC(v) (DUK_TVAL_GET_TAG((v)) == DUK_TAG_LIGHTFUNC) +#define DUK_TVAL_IS_STRING(v) (DUK_TVAL_GET_TAG((v)) == DUK_TAG_STRING) +#define DUK_TVAL_IS_OBJECT(v) (DUK_TVAL_GET_TAG((v)) == DUK_TAG_OBJECT) +#define DUK_TVAL_IS_BUFFER(v) (DUK_TVAL_GET_TAG((v)) == DUK_TAG_BUFFER) +#define DUK_TVAL_IS_POINTER(v) (DUK_TVAL_GET_TAG((v)) == DUK_TAG_POINTER) +#if defined(DUK_USE_FASTINT) +/* 0xfff0 is -Infinity */ +#define DUK_TVAL_IS_DOUBLE(v) (DUK_TVAL_GET_TAG((v)) <= 0xfff0UL) +#define DUK_TVAL_IS_FASTINT(v) (DUK_TVAL_GET_TAG((v)) == DUK_TAG_FASTINT) +#define DUK_TVAL_IS_NUMBER(v) (DUK_TVAL_GET_TAG((v)) <= 0xfff1UL) +#else +#define DUK_TVAL_IS_NUMBER(v) (DUK_TVAL_GET_TAG((v)) <= 0xfff0UL) +#define DUK_TVAL_IS_DOUBLE(v) DUK_TVAL_IS_NUMBER((v)) +#endif + +/* This is performance critical because it appears in every DECREF. */ +#define DUK_TVAL_IS_HEAP_ALLOCATED(v) (DUK_TVAL_GET_TAG((v)) >= DUK_TAG_STRING) + +#if defined(DUK_USE_FASTINT) +DUK_INTERNAL_DECL duk_double_t duk_tval_get_number_packed(duk_tval *tv); +#endif + +#else /* DUK_USE_PACKED_TVAL */ +/* ======================================================================== */ + +/* + * Portable 12-byte representation + */ + +/* Note: not initializing all bytes is normally not an issue: Duktape won't + * read or use the uninitialized bytes so valgrind won't issue warnings. + * In some special cases a harmless valgrind warning may be issued though. + * For example, the DumpHeap debugger command writes out a compiled function's + * 'data' area as is, including any uninitialized bytes, which causes a + * valgrind warning. + */ + +typedef struct duk_tval_struct duk_tval; + +struct duk_tval_struct { + duk_small_uint_t t; + duk_small_uint_t v_extra; + union { + duk_double_t d; + duk_small_int_t i; +#if defined(DUK_USE_FASTINT) + duk_int64_t fi; /* if present, forces 16-byte duk_tval */ +#endif + void *voidptr; + duk_hstring *hstring; + duk_hobject *hobject; + duk_hcompiledfunction *hcompiledfunction; + duk_hnativefunction *hnativefunction; + duk_hthread *hthread; + duk_hbuffer *hbuffer; + duk_heaphdr *heaphdr; + duk_c_function lightfunc; + } v; +}; + +#define DUK__TAG_NUMBER 0 /* not exposed */ +#if defined(DUK_USE_FASTINT) +#define DUK_TAG_FASTINT 1 +#endif +#define DUK_TAG_UNDEFINED 2 +#define DUK_TAG_NULL 3 +#define DUK_TAG_BOOLEAN 4 +#define DUK_TAG_POINTER 5 +#define DUK_TAG_LIGHTFUNC 6 +#define DUK_TAG_UNUSED 7 /* marker; not actual tagged type */ +#define DUK_TAG_STRING 8 /* first heap allocated, match bit boundary */ +#define DUK_TAG_OBJECT 9 +#define DUK_TAG_BUFFER 10 + +/* DUK__TAG_NUMBER is intentionally first, as it is the default clause in code + * to support the 8-byte representation. Further, it is a non-heap-allocated + * type so it should come before DUK_TAG_STRING. Finally, it should not break + * the tag value ranges covered by case-clauses in a switch-case. + */ + +/* setters */ +#define DUK_TVAL_SET_UNDEFINED(tv) do { \ + (tv)->t = DUK_TAG_UNDEFINED; \ + } while (0) + +#define DUK_TVAL_SET_UNUSED(tv) do { \ + (tv)->t = DUK_TAG_UNUSED; \ + } while (0) + +#define DUK_TVAL_SET_NULL(tv) do { \ + (tv)->t = DUK_TAG_NULL; \ + } while (0) + +#define DUK_TVAL_SET_BOOLEAN(tv,val) do { \ + (tv)->t = DUK_TAG_BOOLEAN; \ + (tv)->v.i = (val); \ + } while (0) + +#if defined(DUK_USE_FASTINT) +#define DUK_TVAL_SET_DOUBLE(tv,val) do { \ + (tv)->t = DUK__TAG_NUMBER; \ + (tv)->v.d = (val); \ + } while (0) +#define DUK_TVAL_SET_FASTINT(tv,val) do { \ + (tv)->t = DUK_TAG_FASTINT; \ + (tv)->v.fi = (val); \ + } while (0) +#define DUK_TVAL_SET_FASTINT_U32(tv,val) do { \ + (tv)->t = DUK_TAG_FASTINT; \ + (tv)->v.fi = (duk_int64_t) (val); \ + } while (0) +#define DUK_TVAL_SET_FASTINT_I32(tv,val) do { \ + (tv)->t = DUK_TAG_FASTINT; \ + (tv)->v.fi = (duk_int64_t) (val); \ + } while (0) +#define DUK_TVAL_SET_NUMBER_CHKFAST(tv,d) \ + duk_tval_set_number_chkfast((tv), (d)) +#define DUK_TVAL_SET_NUMBER(tv,val) \ + DUK_TVAL_SET_DOUBLE((tv), (val)) +#define DUK_TVAL_CHKFAST_INPLACE(v) do { \ + duk_tval *duk__tv; \ + duk_double_t duk__d; \ + duk__tv = (v); \ + if (DUK_TVAL_IS_DOUBLE(duk__tv)) { \ + duk__d = DUK_TVAL_GET_DOUBLE(duk__tv); \ + DUK_TVAL_SET_NUMBER_CHKFAST(duk__tv, duk__d); \ + } \ + } while (0) +#else +#define DUK_TVAL_SET_DOUBLE(tv,d) \ + DUK_TVAL_SET_NUMBER((tv), (d)) +#define DUK_TVAL_SET_FASTINT(tv,val) \ + DUK_TVAL_SET_NUMBER((tv), (duk_double_t) (val)) /* XXX: fast int-to-double */ +#define DUK_TVAL_SET_FASTINT_U32(tv,val) \ + DUK_TVAL_SET_NUMBER((tv), (duk_double_t) (val)) +#define DUK_TVAL_SET_FASTINT_I32(tv,val) \ + DUK_TVAL_SET_NUMBER((tv), (duk_double_t) (val)) +#define DUK_TVAL_SET_NUMBER(tv,val) do { \ + (tv)->t = DUK__TAG_NUMBER; \ + (tv)->v.d = (val); \ + } while (0) +#define DUK_TVAL_SET_NUMBER_CHKFAST(tv,d) \ + DUK_TVAL_SET_NUMBER((tv), (d)) +#define DUK_TVAL_CHKFAST_INPLACE(v) do { } while (0) +#endif /* DUK_USE_FASTINT */ + +#define DUK_TVAL_SET_POINTER(tv,hptr) do { \ + (tv)->t = DUK_TAG_POINTER; \ + (tv)->v.voidptr = (hptr); \ + } while (0) + +#define DUK_TVAL_SET_LIGHTFUNC(tv,fp,flags) do { \ + (tv)->t = DUK_TAG_LIGHTFUNC; \ + (tv)->v_extra = (flags); \ + (tv)->v.lightfunc = (duk_c_function) (fp); \ + } while (0) + +#define DUK_TVAL_SET_STRING(tv,hptr) do { \ + (tv)->t = DUK_TAG_STRING; \ + (tv)->v.hstring = (hptr); \ + } while (0) + +#define DUK_TVAL_SET_OBJECT(tv,hptr) do { \ + (tv)->t = DUK_TAG_OBJECT; \ + (tv)->v.hobject = (hptr); \ + } while (0) + +#define DUK_TVAL_SET_BUFFER(tv,hptr) do { \ + (tv)->t = DUK_TAG_BUFFER; \ + (tv)->v.hbuffer = (hptr); \ + } while (0) + +#define DUK_TVAL_SET_NAN(tv) do { \ + /* in non-packed representation we don't care about which NaN is used */ \ + (tv)->t = DUK__TAG_NUMBER; \ + (tv)->v.d = DUK_DOUBLE_NAN; \ + } while (0) + +#define DUK_TVAL_SET_TVAL(v,x) do { *(v) = *(x); } while (0) + +/* getters */ +#define DUK_TVAL_GET_BOOLEAN(tv) ((tv)->v.i) +#if defined(DUK_USE_FASTINT) +#define DUK_TVAL_GET_DOUBLE(tv) ((tv)->v.d) +#define DUK_TVAL_GET_FASTINT(tv) ((tv)->v.fi) +#define DUK_TVAL_GET_FASTINT_U32(tv) ((duk_uint32_t) ((tv)->v.fi)) +#define DUK_TVAL_GET_FASTINT_I32(tv) ((duk_int32_t) ((tv)->v.fi)) +#if 0 +#define DUK_TVAL_GET_NUMBER(tv) (DUK_TVAL_IS_FASTINT((tv)) ? \ + (duk_double_t) DUK_TVAL_GET_FASTINT((tv)) : \ + DUK_TVAL_GET_DOUBLE((tv))) +#define DUK_TVAL_GET_NUMBER(tv) duk_tval_get_number_unpacked((tv)) +#else +/* This seems reasonable overall. */ +#define DUK_TVAL_GET_NUMBER(tv) (DUK_TVAL_IS_FASTINT((tv)) ? \ + duk_tval_get_number_unpacked_fastint((tv)) : \ + DUK_TVAL_GET_DOUBLE((tv))) +#endif +#else +#define DUK_TVAL_GET_NUMBER(tv) ((tv)->v.d) +#define DUK_TVAL_GET_DOUBLE(tv) ((tv)->v.d) +#endif /* DUK_USE_FASTINT */ +#define DUK_TVAL_GET_POINTER(tv) ((tv)->v.voidptr) +#define DUK_TVAL_GET_LIGHTFUNC(tv,out_fp,out_flags) do { \ + (out_flags) = (duk_uint32_t) (tv)->v_extra; \ + (out_fp) = (tv)->v.lightfunc; \ + } while (0) +#define DUK_TVAL_GET_LIGHTFUNC_FUNCPTR(tv) ((tv)->v.lightfunc) +#define DUK_TVAL_GET_LIGHTFUNC_FLAGS(tv) ((duk_uint32_t) ((tv)->v_extra)) +#define DUK_TVAL_GET_STRING(tv) ((tv)->v.hstring) +#define DUK_TVAL_GET_OBJECT(tv) ((tv)->v.hobject) +#define DUK_TVAL_GET_BUFFER(tv) ((tv)->v.hbuffer) +#define DUK_TVAL_GET_HEAPHDR(tv) ((tv)->v.heaphdr) + +/* decoding */ +#define DUK_TVAL_GET_TAG(tv) ((tv)->t) +#define DUK_TVAL_IS_UNDEFINED(tv) ((tv)->t == DUK_TAG_UNDEFINED) +#define DUK_TVAL_IS_UNUSED(tv) ((tv)->t == DUK_TAG_UNUSED) +#define DUK_TVAL_IS_NULL(tv) ((tv)->t == DUK_TAG_NULL) +#define DUK_TVAL_IS_BOOLEAN(tv) ((tv)->t == DUK_TAG_BOOLEAN) +#define DUK_TVAL_IS_BOOLEAN_TRUE(tv) (((tv)->t == DUK_TAG_BOOLEAN) && ((tv)->v.i != 0)) +#define DUK_TVAL_IS_BOOLEAN_FALSE(tv) (((tv)->t == DUK_TAG_BOOLEAN) && ((tv)->v.i == 0)) +#if defined(DUK_USE_FASTINT) +#define DUK_TVAL_IS_DOUBLE(tv) ((tv)->t == DUK__TAG_NUMBER) +#define DUK_TVAL_IS_FASTINT(tv) ((tv)->t == DUK_TAG_FASTINT) +#define DUK_TVAL_IS_NUMBER(tv) ((tv)->t == DUK__TAG_NUMBER || \ + (tv)->t == DUK_TAG_FASTINT) +#else +#define DUK_TVAL_IS_NUMBER(tv) ((tv)->t == DUK__TAG_NUMBER) +#define DUK_TVAL_IS_DOUBLE(v) DUK_TVAL_IS_NUMBER((v)) +#endif /* DUK_USE_FASTINT */ +#define DUK_TVAL_IS_POINTER(tv) ((tv)->t == DUK_TAG_POINTER) +#define DUK_TVAL_IS_LIGHTFUNC(tv) ((tv)->t == DUK_TAG_LIGHTFUNC) +#define DUK_TVAL_IS_STRING(tv) ((tv)->t == DUK_TAG_STRING) +#define DUK_TVAL_IS_OBJECT(tv) ((tv)->t == DUK_TAG_OBJECT) +#define DUK_TVAL_IS_BUFFER(tv) ((tv)->t == DUK_TAG_BUFFER) + +/* This is performance critical because it's needed for every DECREF. + * Take advantage of the fact that the first heap allocated tag is 8, + * so that bit 3 is set for all heap allocated tags (and never set for + * non-heap-allocated tags). + */ +#if 0 +#define DUK_TVAL_IS_HEAP_ALLOCATED(tv) ((tv)->t >= DUK_TAG_STRING) +#endif +#define DUK_TVAL_IS_HEAP_ALLOCATED(tv) ((tv)->t & 0x08) + +#if defined(DUK_USE_FASTINT) +#if 0 +DUK_INTERNAL_DECL duk_double_t duk_tval_get_number_unpacked(duk_tval *tv); +#endif +DUK_INTERNAL_DECL duk_double_t duk_tval_get_number_unpacked_fastint(duk_tval *tv); +#endif + +#endif /* DUK_USE_PACKED_TVAL */ + +/* + * Convenience (independent of representation) + */ + +#define DUK_TVAL_SET_BOOLEAN_TRUE(v) DUK_TVAL_SET_BOOLEAN(v, 1) +#define DUK_TVAL_SET_BOOLEAN_FALSE(v) DUK_TVAL_SET_BOOLEAN(v, 0) + +/* Lightfunc flags packing and unpacking. */ +/* Sign extend: 0x0000##00 -> 0x##000000 -> sign extend to 0xssssss## */ +#define DUK_LFUNC_FLAGS_GET_MAGIC(lf_flags) \ + ((((duk_int32_t) (lf_flags)) << 16) >> 24) +#define DUK_LFUNC_FLAGS_GET_LENGTH(lf_flags) \ + (((lf_flags) >> 4) & 0x0f) +#define DUK_LFUNC_FLAGS_GET_NARGS(lf_flags) \ + ((lf_flags) & 0x0f) +#define DUK_LFUNC_FLAGS_PACK(magic,length,nargs) \ + (((magic) & 0xff) << 8) | ((length) << 4) | (nargs) + +#define DUK_LFUNC_NARGS_VARARGS 0x0f /* varargs marker */ +#define DUK_LFUNC_NARGS_MIN 0x00 +#define DUK_LFUNC_NARGS_MAX 0x0e /* max, excl. varargs marker */ +#define DUK_LFUNC_LENGTH_MIN 0x00 +#define DUK_LFUNC_LENGTH_MAX 0x0f +#define DUK_LFUNC_MAGIC_MIN (-0x80) +#define DUK_LFUNC_MAGIC_MAX 0x7f + +/* fastint constants etc */ +#if defined(DUK_USE_FASTINT) +#define DUK_FASTINT_MIN (-0x800000000000LL) +#define DUK_FASTINT_MAX 0x7fffffffffffLL +#define DUK_FASTINT_BITS 48 + +DUK_INTERNAL_DECL void duk_tval_set_number_chkfast(duk_tval *tv, duk_double_t x); +#endif + +#endif /* DUK_TVAL_H_INCLUDED */ +#line 1 "duk_builtins.h" +/* + * Automatically generated by genbuiltins.py, do not edit! + */ + +#ifndef DUK_BUILTINS_H_INCLUDED +#define DUK_BUILTINS_H_INCLUDED + +#if defined(DUK_USE_ROM_STRINGS) +#error ROM support not enabled, rerun make_dist.py with --rom-support +#else /* DUK_USE_ROM_STRINGS */ +#define DUK_STRIDX_UC_UNDEFINED 0 /* 'Undefined' */ +#define DUK_HEAP_STRING_UC_UNDEFINED(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_UC_UNDEFINED) +#define DUK_HTHREAD_STRING_UC_UNDEFINED(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_UC_UNDEFINED) +#define DUK_STRIDX_UC_NULL 1 /* 'Null' */ +#define DUK_HEAP_STRING_UC_NULL(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_UC_NULL) +#define DUK_HTHREAD_STRING_UC_NULL(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_UC_NULL) +#define DUK_STRIDX_UC_ARGUMENTS 2 /* 'Arguments' */ +#define DUK_HEAP_STRING_UC_ARGUMENTS(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_UC_ARGUMENTS) +#define DUK_HTHREAD_STRING_UC_ARGUMENTS(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_UC_ARGUMENTS) +#define DUK_STRIDX_UC_OBJECT 3 /* 'Object' */ +#define DUK_HEAP_STRING_UC_OBJECT(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_UC_OBJECT) +#define DUK_HTHREAD_STRING_UC_OBJECT(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_UC_OBJECT) +#define DUK_STRIDX_UC_FUNCTION 4 /* 'Function' */ +#define DUK_HEAP_STRING_UC_FUNCTION(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_UC_FUNCTION) +#define DUK_HTHREAD_STRING_UC_FUNCTION(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_UC_FUNCTION) +#define DUK_STRIDX_ARRAY 5 /* 'Array' */ +#define DUK_HEAP_STRING_ARRAY(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_ARRAY) +#define DUK_HTHREAD_STRING_ARRAY(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_ARRAY) +#define DUK_STRIDX_UC_STRING 6 /* 'String' */ +#define DUK_HEAP_STRING_UC_STRING(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_UC_STRING) +#define DUK_HTHREAD_STRING_UC_STRING(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_UC_STRING) +#define DUK_STRIDX_UC_BOOLEAN 7 /* 'Boolean' */ +#define DUK_HEAP_STRING_UC_BOOLEAN(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_UC_BOOLEAN) +#define DUK_HTHREAD_STRING_UC_BOOLEAN(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_UC_BOOLEAN) +#define DUK_STRIDX_UC_NUMBER 8 /* 'Number' */ +#define DUK_HEAP_STRING_UC_NUMBER(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_UC_NUMBER) +#define DUK_HTHREAD_STRING_UC_NUMBER(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_UC_NUMBER) +#define DUK_STRIDX_DATE 9 /* 'Date' */ +#define DUK_HEAP_STRING_DATE(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_DATE) +#define DUK_HTHREAD_STRING_DATE(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_DATE) +#define DUK_STRIDX_REG_EXP 10 /* 'RegExp' */ +#define DUK_HEAP_STRING_REG_EXP(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_REG_EXP) +#define DUK_HTHREAD_STRING_REG_EXP(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_REG_EXP) +#define DUK_STRIDX_UC_ERROR 11 /* 'Error' */ +#define DUK_HEAP_STRING_UC_ERROR(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_UC_ERROR) +#define DUK_HTHREAD_STRING_UC_ERROR(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_UC_ERROR) +#define DUK_STRIDX_MATH 12 /* 'Math' */ +#define DUK_HEAP_STRING_MATH(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_MATH) +#define DUK_HTHREAD_STRING_MATH(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_MATH) +#define DUK_STRIDX_JSON 13 /* 'JSON' */ +#define DUK_HEAP_STRING_JSON(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_JSON) +#define DUK_HTHREAD_STRING_JSON(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_JSON) +#define DUK_STRIDX_EMPTY_STRING 14 /* '' */ +#define DUK_HEAP_STRING_EMPTY_STRING(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_EMPTY_STRING) +#define DUK_HTHREAD_STRING_EMPTY_STRING(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_EMPTY_STRING) +#define DUK_STRIDX_ARRAY_BUFFER 15 /* 'ArrayBuffer' */ +#define DUK_HEAP_STRING_ARRAY_BUFFER(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_ARRAY_BUFFER) +#define DUK_HTHREAD_STRING_ARRAY_BUFFER(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_ARRAY_BUFFER) +#define DUK_STRIDX_DATA_VIEW 16 /* 'DataView' */ +#define DUK_HEAP_STRING_DATA_VIEW(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_DATA_VIEW) +#define DUK_HTHREAD_STRING_DATA_VIEW(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_DATA_VIEW) +#define DUK_STRIDX_INT8_ARRAY 17 /* 'Int8Array' */ +#define DUK_HEAP_STRING_INT8_ARRAY(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_INT8_ARRAY) +#define DUK_HTHREAD_STRING_INT8_ARRAY(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_INT8_ARRAY) +#define DUK_STRIDX_UINT8_ARRAY 18 /* 'Uint8Array' */ +#define DUK_HEAP_STRING_UINT8_ARRAY(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_UINT8_ARRAY) +#define DUK_HTHREAD_STRING_UINT8_ARRAY(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_UINT8_ARRAY) +#define DUK_STRIDX_UINT8_CLAMPED_ARRAY 19 /* 'Uint8ClampedArray' */ +#define DUK_HEAP_STRING_UINT8_CLAMPED_ARRAY(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_UINT8_CLAMPED_ARRAY) +#define DUK_HTHREAD_STRING_UINT8_CLAMPED_ARRAY(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_UINT8_CLAMPED_ARRAY) +#define DUK_STRIDX_INT16_ARRAY 20 /* 'Int16Array' */ +#define DUK_HEAP_STRING_INT16_ARRAY(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_INT16_ARRAY) +#define DUK_HTHREAD_STRING_INT16_ARRAY(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_INT16_ARRAY) +#define DUK_STRIDX_UINT16_ARRAY 21 /* 'Uint16Array' */ +#define DUK_HEAP_STRING_UINT16_ARRAY(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_UINT16_ARRAY) +#define DUK_HTHREAD_STRING_UINT16_ARRAY(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_UINT16_ARRAY) +#define DUK_STRIDX_INT32_ARRAY 22 /* 'Int32Array' */ +#define DUK_HEAP_STRING_INT32_ARRAY(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_INT32_ARRAY) +#define DUK_HTHREAD_STRING_INT32_ARRAY(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_INT32_ARRAY) +#define DUK_STRIDX_UINT32_ARRAY 23 /* 'Uint32Array' */ +#define DUK_HEAP_STRING_UINT32_ARRAY(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_UINT32_ARRAY) +#define DUK_HTHREAD_STRING_UINT32_ARRAY(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_UINT32_ARRAY) +#define DUK_STRIDX_FLOAT32_ARRAY 24 /* 'Float32Array' */ +#define DUK_HEAP_STRING_FLOAT32_ARRAY(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_FLOAT32_ARRAY) +#define DUK_HTHREAD_STRING_FLOAT32_ARRAY(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_FLOAT32_ARRAY) +#define DUK_STRIDX_FLOAT64_ARRAY 25 /* 'Float64Array' */ +#define DUK_HEAP_STRING_FLOAT64_ARRAY(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_FLOAT64_ARRAY) +#define DUK_HTHREAD_STRING_FLOAT64_ARRAY(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_FLOAT64_ARRAY) +#define DUK_STRIDX_GLOBAL 26 /* 'global' */ +#define DUK_HEAP_STRING_GLOBAL(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_GLOBAL) +#define DUK_HTHREAD_STRING_GLOBAL(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_GLOBAL) +#define DUK_STRIDX_OBJ_ENV 27 /* 'ObjEnv' */ +#define DUK_HEAP_STRING_OBJ_ENV(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_OBJ_ENV) +#define DUK_HTHREAD_STRING_OBJ_ENV(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_OBJ_ENV) +#define DUK_STRIDX_DEC_ENV 28 /* 'DecEnv' */ +#define DUK_HEAP_STRING_DEC_ENV(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_DEC_ENV) +#define DUK_HTHREAD_STRING_DEC_ENV(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_DEC_ENV) +#define DUK_STRIDX_UC_BUFFER 29 /* 'Buffer' */ +#define DUK_HEAP_STRING_UC_BUFFER(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_UC_BUFFER) +#define DUK_HTHREAD_STRING_UC_BUFFER(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_UC_BUFFER) +#define DUK_STRIDX_UC_POINTER 30 /* 'Pointer' */ +#define DUK_HEAP_STRING_UC_POINTER(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_UC_POINTER) +#define DUK_HTHREAD_STRING_UC_POINTER(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_UC_POINTER) +#define DUK_STRIDX_UC_THREAD 31 /* 'Thread' */ +#define DUK_HEAP_STRING_UC_THREAD(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_UC_THREAD) +#define DUK_HTHREAD_STRING_UC_THREAD(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_UC_THREAD) +#define DUK_STRIDX_EVAL 32 /* 'eval' */ +#define DUK_HEAP_STRING_EVAL(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_EVAL) +#define DUK_HTHREAD_STRING_EVAL(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_EVAL) +#define DUK_STRIDX_DEFINE_PROPERTY 33 /* 'defineProperty' */ +#define DUK_HEAP_STRING_DEFINE_PROPERTY(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_DEFINE_PROPERTY) +#define DUK_HTHREAD_STRING_DEFINE_PROPERTY(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_DEFINE_PROPERTY) +#define DUK_STRIDX_VALUE 34 /* 'value' */ +#define DUK_HEAP_STRING_VALUE(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_VALUE) +#define DUK_HTHREAD_STRING_VALUE(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_VALUE) +#define DUK_STRIDX_WRITABLE 35 /* 'writable' */ +#define DUK_HEAP_STRING_WRITABLE(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_WRITABLE) +#define DUK_HTHREAD_STRING_WRITABLE(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_WRITABLE) +#define DUK_STRIDX_CONFIGURABLE 36 /* 'configurable' */ +#define DUK_HEAP_STRING_CONFIGURABLE(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_CONFIGURABLE) +#define DUK_HTHREAD_STRING_CONFIGURABLE(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_CONFIGURABLE) +#define DUK_STRIDX_ENUMERABLE 37 /* 'enumerable' */ +#define DUK_HEAP_STRING_ENUMERABLE(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_ENUMERABLE) +#define DUK_HTHREAD_STRING_ENUMERABLE(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_ENUMERABLE) +#define DUK_STRIDX_JOIN 38 /* 'join' */ +#define DUK_HEAP_STRING_JOIN(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_JOIN) +#define DUK_HTHREAD_STRING_JOIN(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_JOIN) +#define DUK_STRIDX_TO_LOCALE_STRING 39 /* 'toLocaleString' */ +#define DUK_HEAP_STRING_TO_LOCALE_STRING(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_TO_LOCALE_STRING) +#define DUK_HTHREAD_STRING_TO_LOCALE_STRING(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_TO_LOCALE_STRING) +#define DUK_STRIDX_VALUE_OF 40 /* 'valueOf' */ +#define DUK_HEAP_STRING_VALUE_OF(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_VALUE_OF) +#define DUK_HTHREAD_STRING_VALUE_OF(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_VALUE_OF) +#define DUK_STRIDX_TO_UTC_STRING 41 /* 'toUTCString' */ +#define DUK_HEAP_STRING_TO_UTC_STRING(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_TO_UTC_STRING) +#define DUK_HTHREAD_STRING_TO_UTC_STRING(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_TO_UTC_STRING) +#define DUK_STRIDX_TO_ISO_STRING 42 /* 'toISOString' */ +#define DUK_HEAP_STRING_TO_ISO_STRING(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_TO_ISO_STRING) +#define DUK_HTHREAD_STRING_TO_ISO_STRING(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_TO_ISO_STRING) +#define DUK_STRIDX_TO_GMT_STRING 43 /* 'toGMTString' */ +#define DUK_HEAP_STRING_TO_GMT_STRING(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_TO_GMT_STRING) +#define DUK_HTHREAD_STRING_TO_GMT_STRING(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_TO_GMT_STRING) +#define DUK_STRIDX_SOURCE 44 /* 'source' */ +#define DUK_HEAP_STRING_SOURCE(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_SOURCE) +#define DUK_HTHREAD_STRING_SOURCE(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_SOURCE) +#define DUK_STRIDX_IGNORE_CASE 45 /* 'ignoreCase' */ +#define DUK_HEAP_STRING_IGNORE_CASE(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_IGNORE_CASE) +#define DUK_HTHREAD_STRING_IGNORE_CASE(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_IGNORE_CASE) +#define DUK_STRIDX_MULTILINE 46 /* 'multiline' */ +#define DUK_HEAP_STRING_MULTILINE(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_MULTILINE) +#define DUK_HTHREAD_STRING_MULTILINE(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_MULTILINE) +#define DUK_STRIDX_LAST_INDEX 47 /* 'lastIndex' */ +#define DUK_HEAP_STRING_LAST_INDEX(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_LAST_INDEX) +#define DUK_HTHREAD_STRING_LAST_INDEX(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_LAST_INDEX) +#define DUK_STRIDX_ESCAPED_EMPTY_REGEXP 48 /* '(?:)' */ +#define DUK_HEAP_STRING_ESCAPED_EMPTY_REGEXP(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_ESCAPED_EMPTY_REGEXP) +#define DUK_HTHREAD_STRING_ESCAPED_EMPTY_REGEXP(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_ESCAPED_EMPTY_REGEXP) +#define DUK_STRIDX_INDEX 49 /* 'index' */ +#define DUK_HEAP_STRING_INDEX(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_INDEX) +#define DUK_HTHREAD_STRING_INDEX(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_INDEX) +#define DUK_STRIDX_PROTOTYPE 50 /* 'prototype' */ +#define DUK_HEAP_STRING_PROTOTYPE(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_PROTOTYPE) +#define DUK_HTHREAD_STRING_PROTOTYPE(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_PROTOTYPE) +#define DUK_STRIDX_CONSTRUCTOR 51 /* 'constructor' */ +#define DUK_HEAP_STRING_CONSTRUCTOR(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_CONSTRUCTOR) +#define DUK_HTHREAD_STRING_CONSTRUCTOR(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_CONSTRUCTOR) +#define DUK_STRIDX_MESSAGE 52 /* 'message' */ +#define DUK_HEAP_STRING_MESSAGE(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_MESSAGE) +#define DUK_HTHREAD_STRING_MESSAGE(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_MESSAGE) +#define DUK_STRIDX_LC_BOOLEAN 53 /* 'boolean' */ +#define DUK_HEAP_STRING_LC_BOOLEAN(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_LC_BOOLEAN) +#define DUK_HTHREAD_STRING_LC_BOOLEAN(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_LC_BOOLEAN) +#define DUK_STRIDX_LC_NUMBER 54 /* 'number' */ +#define DUK_HEAP_STRING_LC_NUMBER(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_LC_NUMBER) +#define DUK_HTHREAD_STRING_LC_NUMBER(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_LC_NUMBER) +#define DUK_STRIDX_LC_STRING 55 /* 'string' */ +#define DUK_HEAP_STRING_LC_STRING(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_LC_STRING) +#define DUK_HTHREAD_STRING_LC_STRING(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_LC_STRING) +#define DUK_STRIDX_LC_OBJECT 56 /* 'object' */ +#define DUK_HEAP_STRING_LC_OBJECT(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_LC_OBJECT) +#define DUK_HTHREAD_STRING_LC_OBJECT(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_LC_OBJECT) +#define DUK_STRIDX_LC_UNDEFINED 57 /* 'undefined' */ +#define DUK_HEAP_STRING_LC_UNDEFINED(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_LC_UNDEFINED) +#define DUK_HTHREAD_STRING_LC_UNDEFINED(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_LC_UNDEFINED) +#define DUK_STRIDX_NAN 58 /* 'NaN' */ +#define DUK_HEAP_STRING_NAN(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_NAN) +#define DUK_HTHREAD_STRING_NAN(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_NAN) +#define DUK_STRIDX_INFINITY 59 /* 'Infinity' */ +#define DUK_HEAP_STRING_INFINITY(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_INFINITY) +#define DUK_HTHREAD_STRING_INFINITY(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_INFINITY) +#define DUK_STRIDX_MINUS_INFINITY 60 /* '-Infinity' */ +#define DUK_HEAP_STRING_MINUS_INFINITY(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_MINUS_INFINITY) +#define DUK_HTHREAD_STRING_MINUS_INFINITY(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_MINUS_INFINITY) +#define DUK_STRIDX_MINUS_ZERO 61 /* '-0' */ +#define DUK_HEAP_STRING_MINUS_ZERO(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_MINUS_ZERO) +#define DUK_HTHREAD_STRING_MINUS_ZERO(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_MINUS_ZERO) +#define DUK_STRIDX_COMMA 62 /* ',' */ +#define DUK_HEAP_STRING_COMMA(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_COMMA) +#define DUK_HTHREAD_STRING_COMMA(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_COMMA) +#define DUK_STRIDX_SPACE 63 /* ' ' */ +#define DUK_HEAP_STRING_SPACE(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_SPACE) +#define DUK_HTHREAD_STRING_SPACE(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_SPACE) +#define DUK_STRIDX_NEWLINE_4SPACE 64 /* '\n ' */ +#define DUK_HEAP_STRING_NEWLINE_4SPACE(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_NEWLINE_4SPACE) +#define DUK_HTHREAD_STRING_NEWLINE_4SPACE(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_NEWLINE_4SPACE) +#define DUK_STRIDX_BRACKETED_ELLIPSIS 65 /* '[...]' */ +#define DUK_HEAP_STRING_BRACKETED_ELLIPSIS(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_BRACKETED_ELLIPSIS) +#define DUK_HTHREAD_STRING_BRACKETED_ELLIPSIS(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_BRACKETED_ELLIPSIS) +#define DUK_STRIDX_INVALID_DATE 66 /* 'Invalid Date' */ +#define DUK_HEAP_STRING_INVALID_DATE(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_INVALID_DATE) +#define DUK_HTHREAD_STRING_INVALID_DATE(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_INVALID_DATE) +#define DUK_STRIDX_LC_ARGUMENTS 67 /* 'arguments' */ +#define DUK_HEAP_STRING_LC_ARGUMENTS(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_LC_ARGUMENTS) +#define DUK_HTHREAD_STRING_LC_ARGUMENTS(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_LC_ARGUMENTS) +#define DUK_STRIDX_CALLEE 68 /* 'callee' */ +#define DUK_HEAP_STRING_CALLEE(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_CALLEE) +#define DUK_HTHREAD_STRING_CALLEE(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_CALLEE) +#define DUK_STRIDX_CALLER 69 /* 'caller' */ +#define DUK_HEAP_STRING_CALLER(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_CALLER) +#define DUK_HTHREAD_STRING_CALLER(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_CALLER) +#define DUK_STRIDX_HAS 70 /* 'has' */ +#define DUK_HEAP_STRING_HAS(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_HAS) +#define DUK_HTHREAD_STRING_HAS(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_HAS) +#define DUK_STRIDX_GET 71 /* 'get' */ +#define DUK_HEAP_STRING_GET(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_GET) +#define DUK_HTHREAD_STRING_GET(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_GET) +#define DUK_STRIDX_DELETE_PROPERTY 72 /* 'deleteProperty' */ +#define DUK_HEAP_STRING_DELETE_PROPERTY(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_DELETE_PROPERTY) +#define DUK_HTHREAD_STRING_DELETE_PROPERTY(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_DELETE_PROPERTY) +#define DUK_STRIDX_ENUMERATE 73 /* 'enumerate' */ +#define DUK_HEAP_STRING_ENUMERATE(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_ENUMERATE) +#define DUK_HTHREAD_STRING_ENUMERATE(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_ENUMERATE) +#define DUK_STRIDX_OWN_KEYS 74 /* 'ownKeys' */ +#define DUK_HEAP_STRING_OWN_KEYS(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_OWN_KEYS) +#define DUK_HTHREAD_STRING_OWN_KEYS(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_OWN_KEYS) +#define DUK_STRIDX_SET_PROTOTYPE_OF 75 /* 'setPrototypeOf' */ +#define DUK_HEAP_STRING_SET_PROTOTYPE_OF(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_SET_PROTOTYPE_OF) +#define DUK_HTHREAD_STRING_SET_PROTOTYPE_OF(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_SET_PROTOTYPE_OF) +#define DUK_STRIDX___PROTO__ 76 /* '__proto__' */ +#define DUK_HEAP_STRING___PROTO__(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX___PROTO__) +#define DUK_HTHREAD_STRING___PROTO__(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX___PROTO__) +#define DUK_STRIDX_REQUIRE 77 /* 'require' */ +#define DUK_HEAP_STRING_REQUIRE(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_REQUIRE) +#define DUK_HTHREAD_STRING_REQUIRE(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_REQUIRE) +#define DUK_STRIDX_ID 78 /* 'id' */ +#define DUK_HEAP_STRING_ID(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_ID) +#define DUK_HTHREAD_STRING_ID(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_ID) +#define DUK_STRIDX_EXPORTS 79 /* 'exports' */ +#define DUK_HEAP_STRING_EXPORTS(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_EXPORTS) +#define DUK_HTHREAD_STRING_EXPORTS(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_EXPORTS) +#define DUK_STRIDX_FILENAME 80 /* 'filename' */ +#define DUK_HEAP_STRING_FILENAME(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_FILENAME) +#define DUK_HTHREAD_STRING_FILENAME(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_FILENAME) +#define DUK_STRIDX_TO_STRING 81 /* 'toString' */ +#define DUK_HEAP_STRING_TO_STRING(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_TO_STRING) +#define DUK_HTHREAD_STRING_TO_STRING(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_TO_STRING) +#define DUK_STRIDX_TO_JSON 82 /* 'toJSON' */ +#define DUK_HEAP_STRING_TO_JSON(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_TO_JSON) +#define DUK_HTHREAD_STRING_TO_JSON(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_TO_JSON) +#define DUK_STRIDX_TYPE 83 /* 'type' */ +#define DUK_HEAP_STRING_TYPE(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_TYPE) +#define DUK_HTHREAD_STRING_TYPE(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_TYPE) +#define DUK_STRIDX_DATA 84 /* 'data' */ +#define DUK_HEAP_STRING_DATA(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_DATA) +#define DUK_HTHREAD_STRING_DATA(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_DATA) +#define DUK_STRIDX_LENGTH 85 /* 'length' */ +#define DUK_HEAP_STRING_LENGTH(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_LENGTH) +#define DUK_HTHREAD_STRING_LENGTH(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_LENGTH) +#define DUK_STRIDX_BYTE_LENGTH 86 /* 'byteLength' */ +#define DUK_HEAP_STRING_BYTE_LENGTH(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_BYTE_LENGTH) +#define DUK_HTHREAD_STRING_BYTE_LENGTH(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_BYTE_LENGTH) +#define DUK_STRIDX_BYTE_OFFSET 87 /* 'byteOffset' */ +#define DUK_HEAP_STRING_BYTE_OFFSET(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_BYTE_OFFSET) +#define DUK_HTHREAD_STRING_BYTE_OFFSET(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_BYTE_OFFSET) +#define DUK_STRIDX_BYTES_PER_ELEMENT 88 /* 'BYTES_PER_ELEMENT' */ +#define DUK_HEAP_STRING_BYTES_PER_ELEMENT(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_BYTES_PER_ELEMENT) +#define DUK_HTHREAD_STRING_BYTES_PER_ELEMENT(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_BYTES_PER_ELEMENT) +#define DUK_STRIDX_SET 89 /* 'set' */ +#define DUK_HEAP_STRING_SET(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_SET) +#define DUK_HTHREAD_STRING_SET(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_SET) +#define DUK_STRIDX_STACK 90 /* 'stack' */ +#define DUK_HEAP_STRING_STACK(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_STACK) +#define DUK_HTHREAD_STRING_STACK(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_STACK) +#define DUK_STRIDX_PC 91 /* 'pc' */ +#define DUK_HEAP_STRING_PC(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_PC) +#define DUK_HTHREAD_STRING_PC(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_PC) +#define DUK_STRIDX_LINE_NUMBER 92 /* 'lineNumber' */ +#define DUK_HEAP_STRING_LINE_NUMBER(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_LINE_NUMBER) +#define DUK_HTHREAD_STRING_LINE_NUMBER(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_LINE_NUMBER) +#define DUK_STRIDX_INT_TRACEDATA 93 /* '\xffTracedata' */ +#define DUK_HEAP_STRING_INT_TRACEDATA(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_INT_TRACEDATA) +#define DUK_HTHREAD_STRING_INT_TRACEDATA(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_INT_TRACEDATA) +#define DUK_STRIDX_NAME 94 /* 'name' */ +#define DUK_HEAP_STRING_NAME(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_NAME) +#define DUK_HTHREAD_STRING_NAME(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_NAME) +#define DUK_STRIDX_FILE_NAME 95 /* 'fileName' */ +#define DUK_HEAP_STRING_FILE_NAME(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_FILE_NAME) +#define DUK_HTHREAD_STRING_FILE_NAME(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_FILE_NAME) +#define DUK_STRIDX_LC_BUFFER 96 /* 'buffer' */ +#define DUK_HEAP_STRING_LC_BUFFER(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_LC_BUFFER) +#define DUK_HTHREAD_STRING_LC_BUFFER(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_LC_BUFFER) +#define DUK_STRIDX_LC_POINTER 97 /* 'pointer' */ +#define DUK_HEAP_STRING_LC_POINTER(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_LC_POINTER) +#define DUK_HTHREAD_STRING_LC_POINTER(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_LC_POINTER) +#define DUK_STRIDX_INT_VALUE 98 /* '\xffValue' */ +#define DUK_HEAP_STRING_INT_VALUE(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_INT_VALUE) +#define DUK_HTHREAD_STRING_INT_VALUE(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_INT_VALUE) +#define DUK_STRIDX_INT_NEXT 99 /* '\xffNext' */ +#define DUK_HEAP_STRING_INT_NEXT(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_INT_NEXT) +#define DUK_HTHREAD_STRING_INT_NEXT(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_INT_NEXT) +#define DUK_STRIDX_INT_BYTECODE 100 /* '\xffBytecode' */ +#define DUK_HEAP_STRING_INT_BYTECODE(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_INT_BYTECODE) +#define DUK_HTHREAD_STRING_INT_BYTECODE(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_INT_BYTECODE) +#define DUK_STRIDX_INT_FORMALS 101 /* '\xffFormals' */ +#define DUK_HEAP_STRING_INT_FORMALS(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_INT_FORMALS) +#define DUK_HTHREAD_STRING_INT_FORMALS(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_INT_FORMALS) +#define DUK_STRIDX_INT_VARMAP 102 /* '\xffVarmap' */ +#define DUK_HEAP_STRING_INT_VARMAP(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_INT_VARMAP) +#define DUK_HTHREAD_STRING_INT_VARMAP(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_INT_VARMAP) +#define DUK_STRIDX_INT_LEXENV 103 /* '\xffLexenv' */ +#define DUK_HEAP_STRING_INT_LEXENV(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_INT_LEXENV) +#define DUK_HTHREAD_STRING_INT_LEXENV(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_INT_LEXENV) +#define DUK_STRIDX_INT_VARENV 104 /* '\xffVarenv' */ +#define DUK_HEAP_STRING_INT_VARENV(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_INT_VARENV) +#define DUK_HTHREAD_STRING_INT_VARENV(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_INT_VARENV) +#define DUK_STRIDX_INT_SOURCE 105 /* '\xffSource' */ +#define DUK_HEAP_STRING_INT_SOURCE(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_INT_SOURCE) +#define DUK_HTHREAD_STRING_INT_SOURCE(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_INT_SOURCE) +#define DUK_STRIDX_INT_PC2LINE 106 /* '\xffPc2line' */ +#define DUK_HEAP_STRING_INT_PC2LINE(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_INT_PC2LINE) +#define DUK_HTHREAD_STRING_INT_PC2LINE(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_INT_PC2LINE) +#define DUK_STRIDX_INT_ARGS 107 /* '\xffArgs' */ +#define DUK_HEAP_STRING_INT_ARGS(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_INT_ARGS) +#define DUK_HTHREAD_STRING_INT_ARGS(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_INT_ARGS) +#define DUK_STRIDX_INT_MAP 108 /* '\xffMap' */ +#define DUK_HEAP_STRING_INT_MAP(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_INT_MAP) +#define DUK_HTHREAD_STRING_INT_MAP(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_INT_MAP) +#define DUK_STRIDX_INT_FINALIZER 109 /* '\xffFinalizer' */ +#define DUK_HEAP_STRING_INT_FINALIZER(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_INT_FINALIZER) +#define DUK_HTHREAD_STRING_INT_FINALIZER(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_INT_FINALIZER) +#define DUK_STRIDX_INT_HANDLER 110 /* '\xffHandler' */ +#define DUK_HEAP_STRING_INT_HANDLER(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_INT_HANDLER) +#define DUK_HTHREAD_STRING_INT_HANDLER(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_INT_HANDLER) +#define DUK_STRIDX_INT_CALLEE 111 /* '\xffCallee' */ +#define DUK_HEAP_STRING_INT_CALLEE(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_INT_CALLEE) +#define DUK_HTHREAD_STRING_INT_CALLEE(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_INT_CALLEE) +#define DUK_STRIDX_INT_THREAD 112 /* '\xffThread' */ +#define DUK_HEAP_STRING_INT_THREAD(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_INT_THREAD) +#define DUK_HTHREAD_STRING_INT_THREAD(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_INT_THREAD) +#define DUK_STRIDX_INT_REGBASE 113 /* '\xffRegbase' */ +#define DUK_HEAP_STRING_INT_REGBASE(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_INT_REGBASE) +#define DUK_HTHREAD_STRING_INT_REGBASE(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_INT_REGBASE) +#define DUK_STRIDX_INT_TARGET 114 /* '\xffTarget' */ +#define DUK_HEAP_STRING_INT_TARGET(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_INT_TARGET) +#define DUK_HTHREAD_STRING_INT_TARGET(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_INT_TARGET) +#define DUK_STRIDX_INT_THIS 115 /* '\xffThis' */ +#define DUK_HEAP_STRING_INT_THIS(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_INT_THIS) +#define DUK_HTHREAD_STRING_INT_THIS(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_INT_THIS) +#define DUK_STRIDX_COMPILE 116 /* 'compile' */ +#define DUK_HEAP_STRING_COMPILE(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_COMPILE) +#define DUK_HTHREAD_STRING_COMPILE(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_COMPILE) +#define DUK_STRIDX_INPUT 117 /* 'input' */ +#define DUK_HEAP_STRING_INPUT(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_INPUT) +#define DUK_HTHREAD_STRING_INPUT(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_INPUT) +#define DUK_STRIDX_ERR_CREATE 118 /* 'errCreate' */ +#define DUK_HEAP_STRING_ERR_CREATE(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_ERR_CREATE) +#define DUK_HTHREAD_STRING_ERR_CREATE(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_ERR_CREATE) +#define DUK_STRIDX_ERR_THROW 119 /* 'errThrow' */ +#define DUK_HEAP_STRING_ERR_THROW(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_ERR_THROW) +#define DUK_HTHREAD_STRING_ERR_THROW(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_ERR_THROW) +#define DUK_STRIDX_MOD_SEARCH 120 /* 'modSearch' */ +#define DUK_HEAP_STRING_MOD_SEARCH(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_MOD_SEARCH) +#define DUK_HTHREAD_STRING_MOD_SEARCH(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_MOD_SEARCH) +#define DUK_STRIDX_MOD_LOADED 121 /* 'modLoaded' */ +#define DUK_HEAP_STRING_MOD_LOADED(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_MOD_LOADED) +#define DUK_HTHREAD_STRING_MOD_LOADED(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_MOD_LOADED) +#define DUK_STRIDX_ENV 122 /* 'env' */ +#define DUK_HEAP_STRING_ENV(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_ENV) +#define DUK_HTHREAD_STRING_ENV(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_ENV) +#define DUK_STRIDX_HEX 123 /* 'hex' */ +#define DUK_HEAP_STRING_HEX(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_HEX) +#define DUK_HTHREAD_STRING_HEX(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_HEX) +#define DUK_STRIDX_BASE64 124 /* 'base64' */ +#define DUK_HEAP_STRING_BASE64(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_BASE64) +#define DUK_HTHREAD_STRING_BASE64(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_BASE64) +#define DUK_STRIDX_JX 125 /* 'jx' */ +#define DUK_HEAP_STRING_JX(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_JX) +#define DUK_HTHREAD_STRING_JX(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_JX) +#define DUK_STRIDX_JC 126 /* 'jc' */ +#define DUK_HEAP_STRING_JC(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_JC) +#define DUK_HTHREAD_STRING_JC(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_JC) +#define DUK_STRIDX_RESUME 127 /* 'resume' */ +#define DUK_HEAP_STRING_RESUME(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_RESUME) +#define DUK_HTHREAD_STRING_RESUME(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_RESUME) +#define DUK_STRIDX_FMT 128 /* 'fmt' */ +#define DUK_HEAP_STRING_FMT(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_FMT) +#define DUK_HTHREAD_STRING_FMT(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_FMT) +#define DUK_STRIDX_RAW 129 /* 'raw' */ +#define DUK_HEAP_STRING_RAW(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_RAW) +#define DUK_HTHREAD_STRING_RAW(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_RAW) +#define DUK_STRIDX_LC_TRACE 130 /* 'trace' */ +#define DUK_HEAP_STRING_LC_TRACE(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_LC_TRACE) +#define DUK_HTHREAD_STRING_LC_TRACE(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_LC_TRACE) +#define DUK_STRIDX_LC_DEBUG 131 /* 'debug' */ +#define DUK_HEAP_STRING_LC_DEBUG(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_LC_DEBUG) +#define DUK_HTHREAD_STRING_LC_DEBUG(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_LC_DEBUG) +#define DUK_STRIDX_LC_INFO 132 /* 'info' */ +#define DUK_HEAP_STRING_LC_INFO(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_LC_INFO) +#define DUK_HTHREAD_STRING_LC_INFO(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_LC_INFO) +#define DUK_STRIDX_LC_WARN 133 /* 'warn' */ +#define DUK_HEAP_STRING_LC_WARN(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_LC_WARN) +#define DUK_HTHREAD_STRING_LC_WARN(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_LC_WARN) +#define DUK_STRIDX_LC_ERROR 134 /* 'error' */ +#define DUK_HEAP_STRING_LC_ERROR(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_LC_ERROR) +#define DUK_HTHREAD_STRING_LC_ERROR(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_LC_ERROR) +#define DUK_STRIDX_LC_FATAL 135 /* 'fatal' */ +#define DUK_HEAP_STRING_LC_FATAL(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_LC_FATAL) +#define DUK_HTHREAD_STRING_LC_FATAL(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_LC_FATAL) +#define DUK_STRIDX_LC_N 136 /* 'n' */ +#define DUK_HEAP_STRING_LC_N(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_LC_N) +#define DUK_HTHREAD_STRING_LC_N(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_LC_N) +#define DUK_STRIDX_LC_L 137 /* 'l' */ +#define DUK_HEAP_STRING_LC_L(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_LC_L) +#define DUK_HTHREAD_STRING_LC_L(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_LC_L) +#define DUK_STRIDX_CLOG 138 /* 'clog' */ +#define DUK_HEAP_STRING_CLOG(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_CLOG) +#define DUK_HTHREAD_STRING_CLOG(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_CLOG) +#define DUK_STRIDX_TO_LOG_STRING 139 /* 'toLogString' */ +#define DUK_HEAP_STRING_TO_LOG_STRING(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_TO_LOG_STRING) +#define DUK_HTHREAD_STRING_TO_LOG_STRING(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_TO_LOG_STRING) +#define DUK_STRIDX_JSON_EXT_UNDEFINED 140 /* '{"_undef":true}' */ +#define DUK_HEAP_STRING_JSON_EXT_UNDEFINED(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_JSON_EXT_UNDEFINED) +#define DUK_HTHREAD_STRING_JSON_EXT_UNDEFINED(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_JSON_EXT_UNDEFINED) +#define DUK_STRIDX_JSON_EXT_NAN 141 /* '{"_nan":true}' */ +#define DUK_HEAP_STRING_JSON_EXT_NAN(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_JSON_EXT_NAN) +#define DUK_HTHREAD_STRING_JSON_EXT_NAN(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_JSON_EXT_NAN) +#define DUK_STRIDX_JSON_EXT_POSINF 142 /* '{"_inf":true}' */ +#define DUK_HEAP_STRING_JSON_EXT_POSINF(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_JSON_EXT_POSINF) +#define DUK_HTHREAD_STRING_JSON_EXT_POSINF(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_JSON_EXT_POSINF) +#define DUK_STRIDX_JSON_EXT_NEGINF 143 /* '{"_ninf":true}' */ +#define DUK_HEAP_STRING_JSON_EXT_NEGINF(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_JSON_EXT_NEGINF) +#define DUK_HTHREAD_STRING_JSON_EXT_NEGINF(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_JSON_EXT_NEGINF) +#define DUK_STRIDX_JSON_EXT_FUNCTION1 144 /* '{"_func":true}' */ +#define DUK_HEAP_STRING_JSON_EXT_FUNCTION1(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_JSON_EXT_FUNCTION1) +#define DUK_HTHREAD_STRING_JSON_EXT_FUNCTION1(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_JSON_EXT_FUNCTION1) +#define DUK_STRIDX_JSON_EXT_FUNCTION2 145 /* '{_func:true}' */ +#define DUK_HEAP_STRING_JSON_EXT_FUNCTION2(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_JSON_EXT_FUNCTION2) +#define DUK_HTHREAD_STRING_JSON_EXT_FUNCTION2(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_JSON_EXT_FUNCTION2) +#define DUK_STRIDX_BREAK 146 /* 'break' */ +#define DUK_HEAP_STRING_BREAK(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_BREAK) +#define DUK_HTHREAD_STRING_BREAK(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_BREAK) +#define DUK_STRIDX_CASE 147 /* 'case' */ +#define DUK_HEAP_STRING_CASE(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_CASE) +#define DUK_HTHREAD_STRING_CASE(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_CASE) +#define DUK_STRIDX_CATCH 148 /* 'catch' */ +#define DUK_HEAP_STRING_CATCH(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_CATCH) +#define DUK_HTHREAD_STRING_CATCH(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_CATCH) +#define DUK_STRIDX_CONTINUE 149 /* 'continue' */ +#define DUK_HEAP_STRING_CONTINUE(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_CONTINUE) +#define DUK_HTHREAD_STRING_CONTINUE(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_CONTINUE) +#define DUK_STRIDX_DEBUGGER 150 /* 'debugger' */ +#define DUK_HEAP_STRING_DEBUGGER(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_DEBUGGER) +#define DUK_HTHREAD_STRING_DEBUGGER(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_DEBUGGER) +#define DUK_STRIDX_DEFAULT 151 /* 'default' */ +#define DUK_HEAP_STRING_DEFAULT(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_DEFAULT) +#define DUK_HTHREAD_STRING_DEFAULT(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_DEFAULT) +#define DUK_STRIDX_DELETE 152 /* 'delete' */ +#define DUK_HEAP_STRING_DELETE(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_DELETE) +#define DUK_HTHREAD_STRING_DELETE(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_DELETE) +#define DUK_STRIDX_DO 153 /* 'do' */ +#define DUK_HEAP_STRING_DO(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_DO) +#define DUK_HTHREAD_STRING_DO(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_DO) +#define DUK_STRIDX_ELSE 154 /* 'else' */ +#define DUK_HEAP_STRING_ELSE(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_ELSE) +#define DUK_HTHREAD_STRING_ELSE(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_ELSE) +#define DUK_STRIDX_FINALLY 155 /* 'finally' */ +#define DUK_HEAP_STRING_FINALLY(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_FINALLY) +#define DUK_HTHREAD_STRING_FINALLY(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_FINALLY) +#define DUK_STRIDX_FOR 156 /* 'for' */ +#define DUK_HEAP_STRING_FOR(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_FOR) +#define DUK_HTHREAD_STRING_FOR(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_FOR) +#define DUK_STRIDX_LC_FUNCTION 157 /* 'function' */ +#define DUK_HEAP_STRING_LC_FUNCTION(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_LC_FUNCTION) +#define DUK_HTHREAD_STRING_LC_FUNCTION(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_LC_FUNCTION) +#define DUK_STRIDX_IF 158 /* 'if' */ +#define DUK_HEAP_STRING_IF(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_IF) +#define DUK_HTHREAD_STRING_IF(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_IF) +#define DUK_STRIDX_IN 159 /* 'in' */ +#define DUK_HEAP_STRING_IN(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_IN) +#define DUK_HTHREAD_STRING_IN(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_IN) +#define DUK_STRIDX_INSTANCEOF 160 /* 'instanceof' */ +#define DUK_HEAP_STRING_INSTANCEOF(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_INSTANCEOF) +#define DUK_HTHREAD_STRING_INSTANCEOF(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_INSTANCEOF) +#define DUK_STRIDX_NEW 161 /* 'new' */ +#define DUK_HEAP_STRING_NEW(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_NEW) +#define DUK_HTHREAD_STRING_NEW(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_NEW) +#define DUK_STRIDX_RETURN 162 /* 'return' */ +#define DUK_HEAP_STRING_RETURN(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_RETURN) +#define DUK_HTHREAD_STRING_RETURN(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_RETURN) +#define DUK_STRIDX_SWITCH 163 /* 'switch' */ +#define DUK_HEAP_STRING_SWITCH(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_SWITCH) +#define DUK_HTHREAD_STRING_SWITCH(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_SWITCH) +#define DUK_STRIDX_THIS 164 /* 'this' */ +#define DUK_HEAP_STRING_THIS(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_THIS) +#define DUK_HTHREAD_STRING_THIS(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_THIS) +#define DUK_STRIDX_THROW 165 /* 'throw' */ +#define DUK_HEAP_STRING_THROW(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_THROW) +#define DUK_HTHREAD_STRING_THROW(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_THROW) +#define DUK_STRIDX_TRY 166 /* 'try' */ +#define DUK_HEAP_STRING_TRY(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_TRY) +#define DUK_HTHREAD_STRING_TRY(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_TRY) +#define DUK_STRIDX_TYPEOF 167 /* 'typeof' */ +#define DUK_HEAP_STRING_TYPEOF(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_TYPEOF) +#define DUK_HTHREAD_STRING_TYPEOF(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_TYPEOF) +#define DUK_STRIDX_VAR 168 /* 'var' */ +#define DUK_HEAP_STRING_VAR(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_VAR) +#define DUK_HTHREAD_STRING_VAR(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_VAR) +#define DUK_STRIDX_CONST 169 /* 'const' */ +#define DUK_HEAP_STRING_CONST(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_CONST) +#define DUK_HTHREAD_STRING_CONST(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_CONST) +#define DUK_STRIDX_VOID 170 /* 'void' */ +#define DUK_HEAP_STRING_VOID(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_VOID) +#define DUK_HTHREAD_STRING_VOID(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_VOID) +#define DUK_STRIDX_WHILE 171 /* 'while' */ +#define DUK_HEAP_STRING_WHILE(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_WHILE) +#define DUK_HTHREAD_STRING_WHILE(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_WHILE) +#define DUK_STRIDX_WITH 172 /* 'with' */ +#define DUK_HEAP_STRING_WITH(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_WITH) +#define DUK_HTHREAD_STRING_WITH(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_WITH) +#define DUK_STRIDX_CLASS 173 /* 'class' */ +#define DUK_HEAP_STRING_CLASS(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_CLASS) +#define DUK_HTHREAD_STRING_CLASS(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_CLASS) +#define DUK_STRIDX_ENUM 174 /* 'enum' */ +#define DUK_HEAP_STRING_ENUM(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_ENUM) +#define DUK_HTHREAD_STRING_ENUM(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_ENUM) +#define DUK_STRIDX_EXPORT 175 /* 'export' */ +#define DUK_HEAP_STRING_EXPORT(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_EXPORT) +#define DUK_HTHREAD_STRING_EXPORT(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_EXPORT) +#define DUK_STRIDX_EXTENDS 176 /* 'extends' */ +#define DUK_HEAP_STRING_EXTENDS(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_EXTENDS) +#define DUK_HTHREAD_STRING_EXTENDS(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_EXTENDS) +#define DUK_STRIDX_IMPORT 177 /* 'import' */ +#define DUK_HEAP_STRING_IMPORT(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_IMPORT) +#define DUK_HTHREAD_STRING_IMPORT(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_IMPORT) +#define DUK_STRIDX_SUPER 178 /* 'super' */ +#define DUK_HEAP_STRING_SUPER(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_SUPER) +#define DUK_HTHREAD_STRING_SUPER(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_SUPER) +#define DUK_STRIDX_LC_NULL 179 /* 'null' */ +#define DUK_HEAP_STRING_LC_NULL(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_LC_NULL) +#define DUK_HTHREAD_STRING_LC_NULL(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_LC_NULL) +#define DUK_STRIDX_TRUE 180 /* 'true' */ +#define DUK_HEAP_STRING_TRUE(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_TRUE) +#define DUK_HTHREAD_STRING_TRUE(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_TRUE) +#define DUK_STRIDX_FALSE 181 /* 'false' */ +#define DUK_HEAP_STRING_FALSE(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_FALSE) +#define DUK_HTHREAD_STRING_FALSE(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_FALSE) +#define DUK_STRIDX_IMPLEMENTS 182 /* 'implements' */ +#define DUK_HEAP_STRING_IMPLEMENTS(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_IMPLEMENTS) +#define DUK_HTHREAD_STRING_IMPLEMENTS(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_IMPLEMENTS) +#define DUK_STRIDX_INTERFACE 183 /* 'interface' */ +#define DUK_HEAP_STRING_INTERFACE(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_INTERFACE) +#define DUK_HTHREAD_STRING_INTERFACE(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_INTERFACE) +#define DUK_STRIDX_LET 184 /* 'let' */ +#define DUK_HEAP_STRING_LET(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_LET) +#define DUK_HTHREAD_STRING_LET(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_LET) +#define DUK_STRIDX_PACKAGE 185 /* 'package' */ +#define DUK_HEAP_STRING_PACKAGE(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_PACKAGE) +#define DUK_HTHREAD_STRING_PACKAGE(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_PACKAGE) +#define DUK_STRIDX_PRIVATE 186 /* 'private' */ +#define DUK_HEAP_STRING_PRIVATE(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_PRIVATE) +#define DUK_HTHREAD_STRING_PRIVATE(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_PRIVATE) +#define DUK_STRIDX_PROTECTED 187 /* 'protected' */ +#define DUK_HEAP_STRING_PROTECTED(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_PROTECTED) +#define DUK_HTHREAD_STRING_PROTECTED(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_PROTECTED) +#define DUK_STRIDX_PUBLIC 188 /* 'public' */ +#define DUK_HEAP_STRING_PUBLIC(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_PUBLIC) +#define DUK_HTHREAD_STRING_PUBLIC(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_PUBLIC) +#define DUK_STRIDX_STATIC 189 /* 'static' */ +#define DUK_HEAP_STRING_STATIC(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_STATIC) +#define DUK_HTHREAD_STRING_STATIC(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_STATIC) +#define DUK_STRIDX_YIELD 190 /* 'yield' */ +#define DUK_HEAP_STRING_YIELD(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_YIELD) +#define DUK_HTHREAD_STRING_YIELD(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_YIELD) + +#define DUK_HEAP_NUM_STRINGS 191 +#define DUK_STRIDX_START_RESERVED 146 +#define DUK_STRIDX_START_STRICT_RESERVED 182 +#define DUK_STRIDX_END_RESERVED 191 /* exclusive endpoint */ + +/* To convert a heap stridx to a token number, subtract + * DUK_STRIDX_START_RESERVED and add DUK_TOK_START_RESERVED. + */ +#if !defined(DUK_SINGLE_FILE) +DUK_INTERNAL_DECL const duk_uint8_t duk_strings_data[1049]; +#endif /* !DUK_SINGLE_FILE */ +#define DUK_STRDATA_MAX_STRLEN 17 +#define DUK_STRDATA_DATA_LENGTH 1049 +#endif /* DUK_USE_ROM_STRINGS */ + +#if defined(DUK_USE_ROM_OBJECTS) +#error ROM support not enabled, rerun make_dist.py with --rom-support +#else +DUK_INTERNAL_DECL duk_ret_t duk_bi_object_constructor(duk_context *ctx); +DUK_INTERNAL_DECL duk_ret_t duk_bi_function_constructor(duk_context *ctx); +DUK_INTERNAL_DECL duk_ret_t duk_bi_function_prototype(duk_context *ctx); +DUK_INTERNAL_DECL duk_ret_t duk_bi_array_constructor(duk_context *ctx); +DUK_INTERNAL_DECL duk_ret_t duk_bi_string_constructor(duk_context *ctx); +DUK_INTERNAL_DECL duk_ret_t duk_bi_boolean_constructor(duk_context *ctx); +DUK_INTERNAL_DECL duk_ret_t duk_bi_number_constructor(duk_context *ctx); +DUK_INTERNAL_DECL duk_ret_t duk_bi_date_constructor(duk_context *ctx); +DUK_INTERNAL_DECL duk_ret_t duk_bi_regexp_constructor(duk_context *ctx); +DUK_INTERNAL_DECL duk_ret_t duk_bi_error_constructor_shared(duk_context *ctx); +DUK_INTERNAL_DECL duk_ret_t duk_bi_type_error_thrower(duk_context *ctx); +DUK_INTERNAL_DECL duk_ret_t duk_bi_proxy_constructor(duk_context *ctx); +DUK_INTERNAL_DECL duk_ret_t duk_bi_thread_constructor(duk_context *ctx); +DUK_INTERNAL_DECL duk_ret_t duk_bi_buffer_constructor(duk_context *ctx); +DUK_INTERNAL_DECL duk_ret_t duk_bi_pointer_constructor(duk_context *ctx); +DUK_INTERNAL_DECL duk_ret_t duk_bi_logger_constructor(duk_context *ctx); +DUK_INTERNAL_DECL duk_ret_t duk_bi_arraybuffer_constructor(duk_context *ctx); +DUK_INTERNAL_DECL duk_ret_t duk_bi_dataview_constructor(duk_context *ctx); +DUK_INTERNAL_DECL duk_ret_t duk_bi_typedarray_constructor(duk_context *ctx); +DUK_INTERNAL_DECL duk_ret_t duk_bi_nodejs_buffer_constructor(duk_context *ctx); +DUK_INTERNAL_DECL duk_ret_t duk_bi_global_object_eval(duk_context *ctx); +DUK_INTERNAL_DECL duk_ret_t duk_bi_global_object_parse_int(duk_context *ctx); +DUK_INTERNAL_DECL duk_ret_t duk_bi_global_object_parse_float(duk_context *ctx); +DUK_INTERNAL_DECL duk_ret_t duk_bi_global_object_is_nan(duk_context *ctx); +DUK_INTERNAL_DECL duk_ret_t duk_bi_global_object_is_finite(duk_context *ctx); +DUK_INTERNAL_DECL duk_ret_t duk_bi_global_object_decode_uri(duk_context *ctx); +DUK_INTERNAL_DECL duk_ret_t duk_bi_global_object_decode_uri_component(duk_context *ctx); +DUK_INTERNAL_DECL duk_ret_t duk_bi_global_object_encode_uri(duk_context *ctx); +DUK_INTERNAL_DECL duk_ret_t duk_bi_global_object_encode_uri_component(duk_context *ctx); +DUK_INTERNAL_DECL duk_ret_t duk_bi_global_object_escape(duk_context *ctx); +DUK_INTERNAL_DECL duk_ret_t duk_bi_global_object_unescape(duk_context *ctx); +DUK_INTERNAL_DECL duk_ret_t duk_bi_global_object_print_helper(duk_context *ctx); +DUK_INTERNAL_DECL duk_ret_t duk_bi_global_object_require(duk_context *ctx); +DUK_INTERNAL_DECL duk_ret_t duk_bi_object_getprototype_shared(duk_context *ctx); +DUK_INTERNAL_DECL duk_ret_t duk_bi_object_setprototype_shared(duk_context *ctx); +DUK_INTERNAL_DECL duk_ret_t duk_bi_object_constructor_get_own_property_descriptor(duk_context *ctx); +DUK_INTERNAL_DECL duk_ret_t duk_bi_object_constructor_keys_shared(duk_context *ctx); +DUK_INTERNAL_DECL duk_ret_t duk_bi_object_constructor_create(duk_context *ctx); +DUK_INTERNAL_DECL duk_ret_t duk_bi_object_constructor_define_property(duk_context *ctx); +DUK_INTERNAL_DECL duk_ret_t duk_bi_object_constructor_define_properties(duk_context *ctx); +DUK_INTERNAL_DECL duk_ret_t duk_bi_object_constructor_seal_freeze_shared(duk_context *ctx); +DUK_INTERNAL_DECL duk_ret_t duk_bi_object_constructor_prevent_extensions(duk_context *ctx); +DUK_INTERNAL_DECL duk_ret_t duk_bi_object_constructor_is_sealed_frozen_shared(duk_context *ctx); +DUK_INTERNAL_DECL duk_ret_t duk_bi_object_constructor_is_extensible(duk_context *ctx); +DUK_INTERNAL_DECL duk_ret_t duk_bi_object_prototype_to_string(duk_context *ctx); +DUK_INTERNAL_DECL duk_ret_t duk_bi_object_prototype_to_locale_string(duk_context *ctx); +DUK_INTERNAL_DECL duk_ret_t duk_bi_object_prototype_value_of(duk_context *ctx); +DUK_INTERNAL_DECL duk_ret_t duk_bi_object_prototype_has_own_property(duk_context *ctx); +DUK_INTERNAL_DECL duk_ret_t duk_bi_object_prototype_is_prototype_of(duk_context *ctx); +DUK_INTERNAL_DECL duk_ret_t duk_bi_object_prototype_property_is_enumerable(duk_context *ctx); +DUK_INTERNAL_DECL duk_ret_t duk_bi_function_prototype_to_string(duk_context *ctx); +DUK_INTERNAL_DECL duk_ret_t duk_bi_function_prototype_apply(duk_context *ctx); +DUK_INTERNAL_DECL duk_ret_t duk_bi_function_prototype_call(duk_context *ctx); +DUK_INTERNAL_DECL duk_ret_t duk_bi_function_prototype_bind(duk_context *ctx); +DUK_INTERNAL_DECL duk_ret_t duk_bi_array_constructor_is_array(duk_context *ctx); +DUK_INTERNAL_DECL duk_ret_t duk_bi_array_prototype_to_string(duk_context *ctx); +DUK_INTERNAL_DECL duk_ret_t duk_bi_array_prototype_join_shared(duk_context *ctx); +DUK_INTERNAL_DECL duk_ret_t duk_bi_array_prototype_concat(duk_context *ctx); +DUK_INTERNAL_DECL duk_ret_t duk_bi_array_prototype_pop(duk_context *ctx); +DUK_INTERNAL_DECL duk_ret_t duk_bi_array_prototype_push(duk_context *ctx); +DUK_INTERNAL_DECL duk_ret_t duk_bi_array_prototype_reverse(duk_context *ctx); +DUK_INTERNAL_DECL duk_ret_t duk_bi_array_prototype_shift(duk_context *ctx); +DUK_INTERNAL_DECL duk_ret_t duk_bi_array_prototype_slice(duk_context *ctx); +DUK_INTERNAL_DECL duk_ret_t duk_bi_array_prototype_sort(duk_context *ctx); +DUK_INTERNAL_DECL duk_ret_t duk_bi_array_prototype_splice(duk_context *ctx); +DUK_INTERNAL_DECL duk_ret_t duk_bi_array_prototype_unshift(duk_context *ctx); +DUK_INTERNAL_DECL duk_ret_t duk_bi_array_prototype_indexof_shared(duk_context *ctx); +DUK_INTERNAL_DECL duk_ret_t duk_bi_array_prototype_iter_shared(duk_context *ctx); +DUK_INTERNAL_DECL duk_ret_t duk_bi_array_prototype_reduce_shared(duk_context *ctx); +DUK_INTERNAL_DECL duk_ret_t duk_bi_string_constructor_from_char_code(duk_context *ctx); +DUK_INTERNAL_DECL duk_ret_t duk_bi_string_prototype_to_string(duk_context *ctx); +DUK_INTERNAL_DECL duk_ret_t duk_bi_string_prototype_char_at(duk_context *ctx); +DUK_INTERNAL_DECL duk_ret_t duk_bi_string_prototype_char_code_at(duk_context *ctx); +DUK_INTERNAL_DECL duk_ret_t duk_bi_string_prototype_concat(duk_context *ctx); +DUK_INTERNAL_DECL duk_ret_t duk_bi_string_prototype_indexof_shared(duk_context *ctx); +DUK_INTERNAL_DECL duk_ret_t duk_bi_string_prototype_locale_compare(duk_context *ctx); +DUK_INTERNAL_DECL duk_ret_t duk_bi_string_prototype_match(duk_context *ctx); +DUK_INTERNAL_DECL duk_ret_t duk_bi_string_prototype_replace(duk_context *ctx); +DUK_INTERNAL_DECL duk_ret_t duk_bi_string_prototype_search(duk_context *ctx); +DUK_INTERNAL_DECL duk_ret_t duk_bi_string_prototype_slice(duk_context *ctx); +DUK_INTERNAL_DECL duk_ret_t duk_bi_string_prototype_split(duk_context *ctx); +DUK_INTERNAL_DECL duk_ret_t duk_bi_string_prototype_substring(duk_context *ctx); +DUK_INTERNAL_DECL duk_ret_t duk_bi_string_prototype_caseconv_shared(duk_context *ctx); +DUK_INTERNAL_DECL duk_ret_t duk_bi_string_prototype_trim(duk_context *ctx); +DUK_INTERNAL_DECL duk_ret_t duk_bi_string_prototype_substr(duk_context *ctx); +DUK_INTERNAL_DECL duk_ret_t duk_bi_boolean_prototype_tostring_shared(duk_context *ctx); +DUK_INTERNAL_DECL duk_ret_t duk_bi_number_prototype_to_string(duk_context *ctx); +DUK_INTERNAL_DECL duk_ret_t duk_bi_number_prototype_to_locale_string(duk_context *ctx); +DUK_INTERNAL_DECL duk_ret_t duk_bi_number_prototype_value_of(duk_context *ctx); +DUK_INTERNAL_DECL duk_ret_t duk_bi_number_prototype_to_fixed(duk_context *ctx); +DUK_INTERNAL_DECL duk_ret_t duk_bi_number_prototype_to_exponential(duk_context *ctx); +DUK_INTERNAL_DECL duk_ret_t duk_bi_number_prototype_to_precision(duk_context *ctx); +DUK_INTERNAL_DECL duk_ret_t duk_bi_date_constructor_parse(duk_context *ctx); +DUK_INTERNAL_DECL duk_ret_t duk_bi_date_constructor_utc(duk_context *ctx); +DUK_INTERNAL_DECL duk_ret_t duk_bi_date_constructor_now(duk_context *ctx); +DUK_INTERNAL_DECL duk_ret_t duk_bi_date_prototype_tostring_shared(duk_context *ctx); +DUK_INTERNAL_DECL duk_ret_t duk_bi_date_prototype_to_json(duk_context *ctx); +DUK_INTERNAL_DECL duk_ret_t duk_bi_date_prototype_value_of(duk_context *ctx); +DUK_INTERNAL_DECL duk_ret_t duk_bi_date_prototype_get_shared(duk_context *ctx); +DUK_INTERNAL_DECL duk_ret_t duk_bi_date_prototype_get_timezone_offset(duk_context *ctx); +DUK_INTERNAL_DECL duk_ret_t duk_bi_date_prototype_set_time(duk_context *ctx); +DUK_INTERNAL_DECL duk_ret_t duk_bi_date_prototype_set_shared(duk_context *ctx); +DUK_INTERNAL_DECL duk_ret_t duk_bi_regexp_prototype_exec(duk_context *ctx); +DUK_INTERNAL_DECL duk_ret_t duk_bi_regexp_prototype_test(duk_context *ctx); +DUK_INTERNAL_DECL duk_ret_t duk_bi_regexp_prototype_to_string(duk_context *ctx); +DUK_INTERNAL_DECL duk_ret_t duk_bi_error_prototype_stack_getter(duk_context *ctx); +DUK_INTERNAL_DECL duk_ret_t duk_bi_error_prototype_stack_setter(duk_context *ctx); +DUK_INTERNAL_DECL duk_ret_t duk_bi_error_prototype_filename_getter(duk_context *ctx); +DUK_INTERNAL_DECL duk_ret_t duk_bi_error_prototype_filename_setter(duk_context *ctx); +DUK_INTERNAL_DECL duk_ret_t duk_bi_error_prototype_linenumber_getter(duk_context *ctx); +DUK_INTERNAL_DECL duk_ret_t duk_bi_error_prototype_linenumber_setter(duk_context *ctx); +DUK_INTERNAL_DECL duk_ret_t duk_bi_error_prototype_to_string(duk_context *ctx); +DUK_INTERNAL_DECL duk_ret_t duk_bi_math_object_onearg_shared(duk_context *ctx); +DUK_INTERNAL_DECL duk_ret_t duk_bi_math_object_twoarg_shared(duk_context *ctx); +DUK_INTERNAL_DECL duk_ret_t duk_bi_math_object_max(duk_context *ctx); +DUK_INTERNAL_DECL duk_ret_t duk_bi_math_object_min(duk_context *ctx); +DUK_INTERNAL_DECL duk_ret_t duk_bi_math_object_random(duk_context *ctx); +DUK_INTERNAL_DECL duk_ret_t duk_bi_json_object_parse(duk_context *ctx); +DUK_INTERNAL_DECL duk_ret_t duk_bi_json_object_stringify(duk_context *ctx); +DUK_INTERNAL_DECL duk_ret_t duk_bi_duktape_object_info(duk_context *ctx); +DUK_INTERNAL_DECL duk_ret_t duk_bi_duktape_object_act(duk_context *ctx); +DUK_INTERNAL_DECL duk_ret_t duk_bi_duktape_object_gc(duk_context *ctx); +DUK_INTERNAL_DECL duk_ret_t duk_bi_duktape_object_fin(duk_context *ctx); +DUK_INTERNAL_DECL duk_ret_t duk_bi_duktape_object_enc(duk_context *ctx); +DUK_INTERNAL_DECL duk_ret_t duk_bi_duktape_object_dec(duk_context *ctx); +DUK_INTERNAL_DECL duk_ret_t duk_bi_duktape_object_compact(duk_context *ctx); +DUK_INTERNAL_DECL duk_ret_t duk_bi_thread_yield(duk_context *ctx); +DUK_INTERNAL_DECL duk_ret_t duk_bi_thread_resume(duk_context *ctx); +DUK_INTERNAL_DECL duk_ret_t duk_bi_thread_current(duk_context *ctx); +DUK_INTERNAL_DECL duk_ret_t duk_bi_buffer_prototype_tostring_shared(duk_context *ctx); +DUK_INTERNAL_DECL duk_ret_t duk_bi_pointer_prototype_tostring_shared(duk_context *ctx); +DUK_INTERNAL_DECL duk_ret_t duk_bi_logger_prototype_fmt(duk_context *ctx); +DUK_INTERNAL_DECL duk_ret_t duk_bi_logger_prototype_raw(duk_context *ctx); +DUK_INTERNAL_DECL duk_ret_t duk_bi_logger_prototype_log_shared(duk_context *ctx); +DUK_INTERNAL_DECL duk_ret_t duk_bi_arraybuffer_isview(duk_context *ctx); +DUK_INTERNAL_DECL duk_ret_t duk_bi_buffer_slice_shared(duk_context *ctx); +DUK_INTERNAL_DECL duk_ret_t duk_bi_buffer_readfield(duk_context *ctx); +DUK_INTERNAL_DECL duk_ret_t duk_bi_buffer_writefield(duk_context *ctx); +DUK_INTERNAL_DECL duk_ret_t duk_bi_typedarray_set(duk_context *ctx); +DUK_INTERNAL_DECL duk_ret_t duk_bi_nodejs_buffer_concat(duk_context *ctx); +DUK_INTERNAL_DECL duk_ret_t duk_bi_nodejs_buffer_is_encoding(duk_context *ctx); +DUK_INTERNAL_DECL duk_ret_t duk_bi_nodejs_buffer_is_buffer(duk_context *ctx); +DUK_INTERNAL_DECL duk_ret_t duk_bi_nodejs_buffer_byte_length(duk_context *ctx); +DUK_INTERNAL_DECL duk_ret_t duk_bi_buffer_compare_shared(duk_context *ctx); +DUK_INTERNAL_DECL duk_ret_t duk_bi_nodejs_buffer_tostring(duk_context *ctx); +DUK_INTERNAL_DECL duk_ret_t duk_bi_nodejs_buffer_tojson(duk_context *ctx); +DUK_INTERNAL_DECL duk_ret_t duk_bi_nodejs_buffer_fill(duk_context *ctx); +DUK_INTERNAL_DECL duk_ret_t duk_bi_nodejs_buffer_copy(duk_context *ctx); +DUK_INTERNAL_DECL duk_ret_t duk_bi_nodejs_buffer_write(duk_context *ctx); +#if !defined(DUK_SINGLE_FILE) +DUK_INTERNAL_DECL const duk_c_function duk_bi_native_functions[149]; +#endif /* !DUK_SINGLE_FILE */ +#if defined(DUK_USE_BUILTIN_INITJS) +#if !defined(DUK_SINGLE_FILE) +DUK_INTERNAL_DECL const duk_uint8_t duk_initjs_data[187]; +#endif /* !DUK_SINGLE_FILE */ +#define DUK_BUILTIN_INITJS_DATA_LENGTH 187 +#endif /* DUK_USE_BUILTIN_INITJS */ +#define DUK_BIDX_GLOBAL 0 +#define DUK_BIDX_GLOBAL_ENV 1 +#define DUK_BIDX_OBJECT_CONSTRUCTOR 2 +#define DUK_BIDX_OBJECT_PROTOTYPE 3 +#define DUK_BIDX_FUNCTION_CONSTRUCTOR 4 +#define DUK_BIDX_FUNCTION_PROTOTYPE 5 +#define DUK_BIDX_ARRAY_CONSTRUCTOR 6 +#define DUK_BIDX_ARRAY_PROTOTYPE 7 +#define DUK_BIDX_STRING_CONSTRUCTOR 8 +#define DUK_BIDX_STRING_PROTOTYPE 9 +#define DUK_BIDX_BOOLEAN_CONSTRUCTOR 10 +#define DUK_BIDX_BOOLEAN_PROTOTYPE 11 +#define DUK_BIDX_NUMBER_CONSTRUCTOR 12 +#define DUK_BIDX_NUMBER_PROTOTYPE 13 +#define DUK_BIDX_DATE_CONSTRUCTOR 14 +#define DUK_BIDX_DATE_PROTOTYPE 15 +#define DUK_BIDX_REGEXP_CONSTRUCTOR 16 +#define DUK_BIDX_REGEXP_PROTOTYPE 17 +#define DUK_BIDX_ERROR_CONSTRUCTOR 18 +#define DUK_BIDX_ERROR_PROTOTYPE 19 +#define DUK_BIDX_EVAL_ERROR_CONSTRUCTOR 20 +#define DUK_BIDX_EVAL_ERROR_PROTOTYPE 21 +#define DUK_BIDX_RANGE_ERROR_CONSTRUCTOR 22 +#define DUK_BIDX_RANGE_ERROR_PROTOTYPE 23 +#define DUK_BIDX_REFERENCE_ERROR_CONSTRUCTOR 24 +#define DUK_BIDX_REFERENCE_ERROR_PROTOTYPE 25 +#define DUK_BIDX_SYNTAX_ERROR_CONSTRUCTOR 26 +#define DUK_BIDX_SYNTAX_ERROR_PROTOTYPE 27 +#define DUK_BIDX_TYPE_ERROR_CONSTRUCTOR 28 +#define DUK_BIDX_TYPE_ERROR_PROTOTYPE 29 +#define DUK_BIDX_URI_ERROR_CONSTRUCTOR 30 +#define DUK_BIDX_URI_ERROR_PROTOTYPE 31 +#define DUK_BIDX_MATH 32 +#define DUK_BIDX_JSON 33 +#define DUK_BIDX_TYPE_ERROR_THROWER 34 +#define DUK_BIDX_PROXY_CONSTRUCTOR 35 +#define DUK_BIDX_DUKTAPE 36 +#define DUK_BIDX_THREAD_CONSTRUCTOR 37 +#define DUK_BIDX_THREAD_PROTOTYPE 38 +#define DUK_BIDX_BUFFER_CONSTRUCTOR 39 +#define DUK_BIDX_BUFFER_PROTOTYPE 40 +#define DUK_BIDX_POINTER_CONSTRUCTOR 41 +#define DUK_BIDX_POINTER_PROTOTYPE 42 +#define DUK_BIDX_LOGGER_CONSTRUCTOR 43 +#define DUK_BIDX_LOGGER_PROTOTYPE 44 +#define DUK_BIDX_DOUBLE_ERROR 45 +#define DUK_BIDX_ARRAYBUFFER_CONSTRUCTOR 46 +#define DUK_BIDX_ARRAYBUFFER_PROTOTYPE 47 +#define DUK_BIDX_DATAVIEW_CONSTRUCTOR 48 +#define DUK_BIDX_DATAVIEW_PROTOTYPE 49 +#define DUK_BIDX_TYPEDARRAY_PROTOTYPE 50 +#define DUK_BIDX_INT8ARRAY_CONSTRUCTOR 51 +#define DUK_BIDX_INT8ARRAY_PROTOTYPE 52 +#define DUK_BIDX_UINT8ARRAY_CONSTRUCTOR 53 +#define DUK_BIDX_UINT8ARRAY_PROTOTYPE 54 +#define DUK_BIDX_UINT8CLAMPEDARRAY_CONSTRUCTOR 55 +#define DUK_BIDX_UINT8CLAMPEDARRAY_PROTOTYPE 56 +#define DUK_BIDX_INT16ARRAY_CONSTRUCTOR 57 +#define DUK_BIDX_INT16ARRAY_PROTOTYPE 58 +#define DUK_BIDX_UINT16ARRAY_CONSTRUCTOR 59 +#define DUK_BIDX_UINT16ARRAY_PROTOTYPE 60 +#define DUK_BIDX_INT32ARRAY_CONSTRUCTOR 61 +#define DUK_BIDX_INT32ARRAY_PROTOTYPE 62 +#define DUK_BIDX_UINT32ARRAY_CONSTRUCTOR 63 +#define DUK_BIDX_UINT32ARRAY_PROTOTYPE 64 +#define DUK_BIDX_FLOAT32ARRAY_CONSTRUCTOR 65 +#define DUK_BIDX_FLOAT32ARRAY_PROTOTYPE 66 +#define DUK_BIDX_FLOAT64ARRAY_CONSTRUCTOR 67 +#define DUK_BIDX_FLOAT64ARRAY_PROTOTYPE 68 +#define DUK_BIDX_NODEJS_BUFFER_CONSTRUCTOR 69 +#define DUK_BIDX_NODEJS_BUFFER_PROTOTYPE 70 +#define DUK_NUM_BUILTINS 71 +#define DUK_NUM_BIDX_BUILTINS 71 +#define DUK_NUM_ALL_BUILTINS 71 +#if defined(DUK_USE_DOUBLE_LE) +#if !defined(DUK_SINGLE_FILE) +DUK_INTERNAL_DECL const duk_uint8_t duk_builtins_data[3833]; +#endif /* !DUK_SINGLE_FILE */ +#define DUK_BUILTINS_DATA_LENGTH 3833 +#elif defined(DUK_USE_DOUBLE_BE) +#if !defined(DUK_SINGLE_FILE) +DUK_INTERNAL_DECL const duk_uint8_t duk_builtins_data[3833]; +#endif /* !DUK_SINGLE_FILE */ +#define DUK_BUILTINS_DATA_LENGTH 3833 +#elif defined(DUK_USE_DOUBLE_ME) +#if !defined(DUK_SINGLE_FILE) +DUK_INTERNAL_DECL const duk_uint8_t duk_builtins_data[3833]; +#endif /* !DUK_SINGLE_FILE */ +#define DUK_BUILTINS_DATA_LENGTH 3833 +#else +#error invalid endianness defines +#endif +#endif /* DUK_USE_ROM_OBJECTS */ +#endif /* DUK_BUILTINS_H_INCLUDED */ +#line 52 "duk_internal.h" + +#line 1 "duk_util.h" +/* + * Utilities + */ + +#ifndef DUK_UTIL_H_INCLUDED +#define DUK_UTIL_H_INCLUDED + +#define DUK_UTIL_MIN_HASH_PRIME 17 /* must match genhashsizes.py */ + +#define DUK_UTIL_GET_HASH_PROBE_STEP(hash) (duk_util_probe_steps[(hash) & 0x1f]) + +/* + * Endian conversion + */ + +#if defined(DUK_USE_INTEGER_LE) +#define DUK_HTON32(x) DUK_BSWAP32((x)) +#define DUK_NTOH32(x) DUK_BSWAP32((x)) +#define DUK_HTON16(x) DUK_BSWAP16((x)) +#define DUK_NTOH16(x) DUK_BSWAP16((x)) +#elif defined(DUK_USE_INTEGER_BE) +#define DUK_HTON32(x) (x) +#define DUK_NTOH32(x) (x) +#define DUK_HTON16(x) (x) +#define DUK_NTOH16(x) (x) +#else +#error internal error, endianness defines broken +#endif + +/* + * Bitstream decoder + */ + +struct duk_bitdecoder_ctx { + const duk_uint8_t *data; + duk_size_t offset; + duk_size_t length; + duk_uint32_t currval; + duk_small_int_t currbits; +}; + +/* + * Bitstream encoder + */ + +struct duk_bitencoder_ctx { + duk_uint8_t *data; + duk_size_t offset; + duk_size_t length; + duk_uint32_t currval; + duk_small_int_t currbits; + duk_small_int_t truncated; +}; + +/* + * Raw write/read macros for big endian, unaligned basic values. + * Caller ensures there's enough space. The macros update the pointer + * argument automatically on resizes. The idiom seems a bit odd, but + * leads to compact code. + */ + +#define DUK_RAW_WRITE_U8(ptr,val) do { \ + *(ptr)++ = (duk_uint8_t) (val); \ + } while (0) +#define DUK_RAW_WRITE_U16_BE(ptr,val) duk_raw_write_u16_be(&(ptr), (duk_uint16_t) (val)) +#define DUK_RAW_WRITE_U32_BE(ptr,val) duk_raw_write_u32_be(&(ptr), (duk_uint32_t) (val)) +#define DUK_RAW_WRITE_DOUBLE_BE(ptr,val) duk_raw_write_double_be(&(ptr), (duk_double_t) (val)) +#define DUK_RAW_WRITE_XUTF8(ptr,val) do { \ + /* 'ptr' is evaluated both as LHS and RHS. */ \ + duk_uint8_t *duk__ptr; \ + duk_small_int_t duk__len; \ + duk__ptr = (duk_uint8_t *) (ptr); \ + duk__len = duk_unicode_encode_xutf8((duk_ucodepoint_t) (val), duk__ptr); \ + duk__ptr += duk__len; \ + (ptr) = duk__ptr; \ + } while (0) +#define DUK_RAW_WRITE_CESU8(ptr,val) do { \ + /* 'ptr' is evaluated both as LHS and RHS. */ \ + duk_uint8_t *duk__ptr; \ + duk_small_int_t duk__len; \ + duk__ptr = (duk_uint8_t *) (ptr); \ + duk__len = duk_unicode_encode_cesu8((duk_ucodepoint_t) (val), duk__ptr); \ + duk__ptr += duk__len; \ + (ptr) = duk__ptr; \ + } while (0) + +#define DUK_RAW_READ_U8(ptr) ((duk_uint8_t) (*(ptr)++)) +#define DUK_RAW_READ_U16_BE(ptr) duk_raw_read_u16_be(&(ptr)); +#define DUK_RAW_READ_U32_BE(ptr) duk_raw_read_u32_be(&(ptr)); +#define DUK_RAW_READ_DOUBLE_BE(ptr) duk_raw_read_double_be(&(ptr)); + +/* + * Buffer writer (dynamic buffer only) + * + * Helper for writing to a dynamic buffer with a concept of a "spare" area + * to reduce resizes. You can ensure there is enough space beforehand and + * then write for a while without further checks, relying on a stable data + * pointer. Spare handling is automatic so call sites only indicate how + * much data they need right now. + * + * There are several ways to write using bufwriter. The best approach + * depends mainly on how much performance matters over code footprint. + * The key issues are (1) ensuring there is space and (2) keeping the + * pointers consistent. Fast code should ensure space for multiple writes + * with one ensure call. Fastest inner loop code can temporarily borrow + * the 'p' pointer but must write it back eventually. + * + * Be careful to ensure all macro arguments (other than static pointers like + * 'thr' and 'bw_ctx') are evaluated exactly once, using temporaries if + * necessary (if that's not possible, there should be a note near the macro). + * Buffer write arguments often contain arithmetic etc so this is + * particularly important here. + */ + +/* XXX: Migrate bufwriter and other read/write helpers to its own header? */ + +struct duk_bufwriter_ctx { + duk_uint8_t *p; + duk_uint8_t *p_base; + duk_uint8_t *p_limit; + duk_hbuffer_dynamic *buf; +}; + +#define DUK_BW_SPARE_ADD 64 +#define DUK_BW_SPARE_SHIFT 4 /* 2^4 -> 1/16 = 6.25% spare */ + +/* Initialization and finalization (compaction), converting to other types. */ + +#define DUK_BW_INIT_PUSHBUF(thr,bw_ctx,sz) do { \ + duk_bw_init_pushbuf((thr), (bw_ctx), (sz)); \ + } while (0) +#define DUK_BW_INIT_WITHBUF(thr,bw_ctx,buf) do { \ + duk_bw_init((thr), (bw_ctx), (buf)); \ + } while (0) +#define DUK_BW_COMPACT(thr,bw_ctx) do { \ + /* Make underlying buffer compact to match DUK_BW_GET_SIZE(). */ \ + duk_bw_compact((thr), (bw_ctx)); \ + } while (0) +#define DUK_BW_PUSH_AS_STRING(thr,bw_ctx) do { \ + duk_push_lstring((duk_context *) (thr), \ + (const char *) (bw_ctx)->p_base, \ + (duk_size_t) ((bw_ctx)->p - (bw_ctx)->p_base)); \ + } while (0) +/* Pointers may be NULL for a while when 'buf' size is zero and before any + * ENSURE calls have been made. Once an ENSURE has been made, the pointers + * are required to be non-NULL so that it's always valid to use memcpy() and + * memmove(), even for zero size. + */ +#define DUK_BW_ASSERT_VALID_EXPR(thr,bw_ctx) \ + DUK_ASSERT_EXPR((bw_ctx) != NULL && \ + (bw_ctx)->buf != NULL && \ + ((DUK_HBUFFER_DYNAMIC_GET_SIZE((bw_ctx)->buf) == 0) || \ + ((bw_ctx)->p != NULL && \ + (bw_ctx)->p_base != NULL && \ + (bw_ctx)->p_limit != NULL && \ + (bw_ctx)->p_limit >= (bw_ctx)->p_base && \ + (bw_ctx)->p >= (bw_ctx)->p_base && \ + (bw_ctx)->p <= (bw_ctx)->p_limit))) +#define DUK_BW_ASSERT_VALID(thr,bw_ctx) do { \ + DUK_BW_ASSERT_VALID_EXPR((thr), (bw_ctx)); \ + } while (0) + +/* Working with the pointer and current size. */ + +#define DUK_BW_GET_PTR(thr,bw_ctx) \ + ((bw_ctx)->p) +#define DUK_BW_SET_PTR(thr,bw_ctx,ptr) do { \ + (bw_ctx)->p = (ptr); \ + } while (0) +#define DUK_BW_ADD_PTR(thr,bw_ctx,delta) do { \ + (bw_ctx)->p += (delta); \ + } while (0) +#define DUK_BW_GET_BASEPTR(thr,bw_ctx) \ + ((bw_ctx)->p_base) +#define DUK_BW_GET_LIMITPTR(thr,bw_ctx) \ + ((bw_ctx)->p_limit) +#define DUK_BW_GET_SIZE(thr,bw_ctx) \ + ((duk_size_t) ((bw_ctx)->p - (bw_ctx)->p_base)) +#define DUK_BW_SET_SIZE(thr,bw_ctx,sz) do { \ + DUK_ASSERT((duk_size_t) (sz) <= (duk_size_t) ((bw_ctx)->p - (bw_ctx)->p_base)); \ + (bw_ctx)->p = (bw_ctx)->p_base + (sz); \ + } while (0) +#define DUK_BW_RESET_SIZE(thr,bw_ctx) do { \ + /* Reset to zero size, keep current limit. */ \ + (bw_ctx)->p = (bw_ctx)->p_base; \ + } while (0) +#define DUK_BW_GET_BUFFER(thr,bw_ctx) \ + ((bw_ctx)->buf) + +/* Ensuring (reserving) space. */ + +#define DUK_BW_ENSURE(thr,bw_ctx,sz) do { \ + duk_size_t duk__sz, duk__space; \ + DUK_BW_ASSERT_VALID((thr), (bw_ctx)); \ + duk__sz = (sz); \ + duk__space = (duk_size_t) ((bw_ctx)->p_limit - (bw_ctx)->p); \ + if (duk__space < duk__sz) { \ + (void) duk_bw_resize((thr), (bw_ctx), duk__sz); \ + } \ + } while (0) +/* NOTE: Multiple evaluation of 'ptr' in this macro. */ +/* XXX: Rework to use an always-inline function? */ +#define DUK_BW_ENSURE_RAW(thr,bw_ctx,sz,ptr) \ + (((duk_size_t) ((bw_ctx)->p_limit - (ptr)) >= (sz)) ? \ + (ptr) : \ + ((bw_ctx)->p = (ptr), duk_bw_resize((thr),(bw_ctx),(sz)))) +#define DUK_BW_ENSURE_GETPTR(thr,bw_ctx,sz) \ + DUK_BW_ENSURE_RAW((thr), (bw_ctx), (sz), (bw_ctx)->p) +#define DUK_BW_ASSERT_SPACE_EXPR(thr,bw_ctx,sz) \ + (DUK_BW_ASSERT_VALID_EXPR((thr), (bw_ctx)), \ + DUK_ASSERT_EXPR((duk_size_t) ((bw_ctx)->p_limit - (bw_ctx)->p) >= (duk_size_t) (sz))) +#define DUK_BW_ASSERT_SPACE(thr,bw_ctx,sz) do { \ + DUK_BW_ASSERT_SPACE_EXPR((thr), (bw_ctx), (sz)); \ + } while (0) + +/* Miscellaneous. */ + +#define DUK_BW_SETPTR_AND_COMPACT(thr,bw_ctx,ptr) do { \ + (bw_ctx)->p = (ptr); \ + duk_bw_compact((thr), (bw_ctx)); \ + } while (0) + +/* Fast write calls which assume you control the spare beforehand. + * Multibyte write variants exist and use a temporary write pointer + * because byte writes alias with anything: with a stored pointer + * explicit pointer load/stores get generated (e.g. gcc -Os). + */ + +#define DUK_BW_WRITE_RAW_U8(thr,bw_ctx,val) do { \ + DUK_BW_ASSERT_SPACE((thr), (bw_ctx), 1); \ + *(bw_ctx)->p++ = (duk_uint8_t) (val); \ + } while (0) +#define DUK_BW_WRITE_RAW_U8_2(thr,bw_ctx,val1,val2) do { \ + duk_uint8_t *duk__p; \ + DUK_BW_ASSERT_SPACE((thr), (bw_ctx), 2); \ + duk__p = (bw_ctx)->p; \ + *duk__p++ = (duk_uint8_t) (val1); \ + *duk__p++ = (duk_uint8_t) (val2); \ + (bw_ctx)->p = duk__p; \ + } while (0) +#define DUK_BW_WRITE_RAW_U8_3(thr,bw_ctx,val1,val2,val3) do { \ + duk_uint8_t *duk__p; \ + DUK_BW_ASSERT_SPACE((thr), (bw_ctx), 3); \ + duk__p = (bw_ctx)->p; \ + *duk__p++ = (duk_uint8_t) (val1); \ + *duk__p++ = (duk_uint8_t) (val2); \ + *duk__p++ = (duk_uint8_t) (val3); \ + (bw_ctx)->p = duk__p; \ + } while (0) +#define DUK_BW_WRITE_RAW_U8_4(thr,bw_ctx,val1,val2,val3,val4) do { \ + duk_uint8_t *duk__p; \ + DUK_BW_ASSERT_SPACE((thr), (bw_ctx), 4); \ + duk__p = (bw_ctx)->p; \ + *duk__p++ = (duk_uint8_t) (val1); \ + *duk__p++ = (duk_uint8_t) (val2); \ + *duk__p++ = (duk_uint8_t) (val3); \ + *duk__p++ = (duk_uint8_t) (val4); \ + (bw_ctx)->p = duk__p; \ + } while (0) +#define DUK_BW_WRITE_RAW_U8_5(thr,bw_ctx,val1,val2,val3,val4,val5) do { \ + duk_uint8_t *duk__p; \ + DUK_BW_ASSERT_SPACE((thr), (bw_ctx), 5); \ + duk__p = (bw_ctx)->p; \ + *duk__p++ = (duk_uint8_t) (val1); \ + *duk__p++ = (duk_uint8_t) (val2); \ + *duk__p++ = (duk_uint8_t) (val3); \ + *duk__p++ = (duk_uint8_t) (val4); \ + *duk__p++ = (duk_uint8_t) (val5); \ + (bw_ctx)->p = duk__p; \ + } while (0) +#define DUK_BW_WRITE_RAW_U8_6(thr,bw_ctx,val1,val2,val3,val4,val5,val6) do { \ + duk_uint8_t *duk__p; \ + DUK_BW_ASSERT_SPACE((thr), (bw_ctx), 6); \ + duk__p = (bw_ctx)->p; \ + *duk__p++ = (duk_uint8_t) (val1); \ + *duk__p++ = (duk_uint8_t) (val2); \ + *duk__p++ = (duk_uint8_t) (val3); \ + *duk__p++ = (duk_uint8_t) (val4); \ + *duk__p++ = (duk_uint8_t) (val5); \ + *duk__p++ = (duk_uint8_t) (val6); \ + (bw_ctx)->p = duk__p; \ + } while (0) +#define DUK_BW_WRITE_RAW_XUTF8(thr,bw_ctx,cp) do { \ + duk_ucodepoint_t duk__cp; \ + duk_small_int_t duk__enc_len; \ + duk__cp = (cp); \ + DUK_BW_ASSERT_SPACE((thr), (bw_ctx), duk_unicode_get_xutf8_length(duk__cp)); \ + duk__enc_len = duk_unicode_encode_xutf8(duk__cp, (bw_ctx)->p); \ + (bw_ctx)->p += duk__enc_len; \ + } while (0) +#define DUK_BW_WRITE_RAW_CESU8(thr,bw_ctx,cp) do { \ + duk_ucodepoint_t duk__cp; \ + duk_small_int_t duk__enc_len; \ + duk__cp = (duk_ucodepoint_t) (cp); \ + DUK_BW_ASSERT_SPACE((thr), (bw_ctx), duk_unicode_get_cesu8_length(duk__cp)); \ + duk__enc_len = duk_unicode_encode_cesu8(duk__cp, (bw_ctx)->p); \ + (bw_ctx)->p += duk__enc_len; \ + } while (0) +/* XXX: add temporary duk__p pointer here too; sharing */ +#define DUK_BW_WRITE_RAW_BYTES(thr,bw_ctx,valptr,valsz) do { \ + const void *duk__valptr; \ + duk_size_t duk__valsz; \ + duk__valptr = (const void *) (valptr); \ + duk__valsz = (duk_size_t) (valsz); \ + DUK_MEMCPY((void *) ((bw_ctx)->p), duk__valptr, duk__valsz); \ + (bw_ctx)->p += duk__valsz; \ + } while (0) +#define DUK_BW_WRITE_RAW_CSTRING(thr,bw_ctx,val) do { \ + const duk_uint8_t *duk__val; \ + duk_size_t duk__val_len; \ + duk__val = (const duk_uint8_t *) (val); \ + duk__val_len = DUK_STRLEN((const char *) duk__val); \ + DUK_MEMCPY((void *) ((bw_ctx)->p), (const void *) duk__val, duk__val_len); \ + (bw_ctx)->p += duk__val_len; \ + } while (0) +#define DUK_BW_WRITE_RAW_HSTRING(thr,bw_ctx,val) do { \ + duk_size_t duk__val_len; \ + duk__val_len = DUK_HSTRING_GET_BYTELEN((val)); \ + DUK_MEMCPY((void *) ((bw_ctx)->p), (const void *) DUK_HSTRING_GET_DATA((val)), duk__val_len); \ + (bw_ctx)->p += duk__val_len; \ + } while (0) +#define DUK_BW_WRITE_RAW_HBUFFER(thr,bw_ctx,val) do { \ + duk_size_t duk__val_len; \ + duk__val_len = DUK_HBUFFER_GET_SIZE((val)); \ + DUK_MEMCPY((void *) ((bw_ctx)->p), (const void *) DUK_HBUFFER_GET_DATA_PTR((thr)->heap, (val)), duk__val_len); \ + (bw_ctx)->p += duk__val_len; \ + } while (0) +#define DUK_BW_WRITE_RAW_HBUFFER_FIXED(thr,bw_ctx,val) do { \ + duk_size_t duk__val_len; \ + duk__val_len = DUK_HBUFFER_FIXED_GET_SIZE((val)); \ + DUK_MEMCPY((void *) ((bw_ctx)->p), (const void *) DUK_HBUFFER_FIXED_GET_DATA_PTR((thr)->heap, (val)), duk__val_len); \ + (bw_ctx)->p += duk__val_len; \ + } while (0) +#define DUK_BW_WRITE_RAW_HBUFFER_DYNAMIC(thr,bw_ctx,val) do { \ + duk_size_t duk__val_len; \ + duk__val_len = DUK_HBUFFER_DYNAMIC_GET_SIZE((val)); \ + DUK_MEMCPY((void *) ((bw_ctx)->p), (const void *) DUK_HBUFFER_DYNAMIC_GET_DATA_PTR((thr)->heap, (val)), duk__val_len); \ + (bw_ctx)->p += duk__val_len; \ + } while (0) + +/* Append bytes from a slice already in the buffer. */ +#define DUK_BW_WRITE_RAW_SLICE(thr,bw,dst_off,dst_len) \ + duk_bw_write_raw_slice((thr), (bw), (dst_off), (dst_len)) + +/* Insert bytes in the middle of the buffer from an external buffer. */ +#define DUK_BW_INSERT_RAW_BYTES(thr,bw,dst_off,buf,len) \ + duk_bw_insert_raw_bytes((thr), (bw), (dst_off), (buf), (len)) + +/* Insert bytes in the middle of the buffer from a slice already + * in the buffer. Source offset is interpreted "before" the operation. + */ +#define DUK_BW_INSERT_RAW_SLICE(thr,bw,dst_off,src_off,len) \ + duk_bw_insert_raw_slice((thr), (bw), (dst_off), (src_off), (len)) + +/* Insert a reserved area somewhere in the buffer; caller fills it. + * Evaluates to a (duk_uint_t *) pointing to the start of the reserved + * area for convenience. + */ +#define DUK_BW_INSERT_RAW_AREA(thr,bw,off,len) \ + duk_bw_insert_raw_area((thr), (bw), (off), (len)) + +/* Remove a slice from inside buffer. */ +#define DUK_BW_REMOVE_RAW_SLICE(thr,bw,off,len) \ + duk_bw_remove_raw_slice((thr), (bw), (off), (len)) + +/* Safe write calls which will ensure space first. */ + +#define DUK_BW_WRITE_ENSURE_U8(thr,bw_ctx,val) do { \ + DUK_BW_ENSURE((thr), (bw_ctx), 1); \ + DUK_BW_WRITE_RAW_U8((thr), (bw_ctx), (val)); \ + } while (0) +#define DUK_BW_WRITE_ENSURE_U8_2(thr,bw_ctx,val1,val2) do { \ + DUK_BW_ENSURE((thr), (bw_ctx), 2); \ + DUK_BW_WRITE_RAW_U8_2((thr), (bw_ctx), (val1), (val2)); \ + } while (0) +#define DUK_BW_WRITE_ENSURE_U8_3(thr,bw_ctx,val1,val2,val3) do { \ + DUK_BW_ENSURE((thr), (bw_ctx), 3); \ + DUK_BW_WRITE_RAW_U8_3((thr), (bw_ctx), (val1), (val2), (val3)); \ + } while (0) +#define DUK_BW_WRITE_ENSURE_U8_4(thr,bw_ctx,val1,val2,val3,val4) do { \ + DUK_BW_ENSURE((thr), (bw_ctx), 4); \ + DUK_BW_WRITE_RAW_U8_4((thr), (bw_ctx), (val1), (val2), (val3), (val4)); \ + } while (0) +#define DUK_BW_WRITE_ENSURE_U8_5(thr,bw_ctx,val1,val2,val3,val4,val5) do { \ + DUK_BW_ENSURE((thr), (bw_ctx), 5); \ + DUK_BW_WRITE_RAW_U8_5((thr), (bw_ctx), (val1), (val2), (val3), (val4), (val5)); \ + } while (0) +#define DUK_BW_WRITE_ENSURE_U8_6(thr,bw_ctx,val1,val2,val3,val4,val5,val6) do { \ + DUK_BW_ENSURE((thr), (bw_ctx), 6); \ + DUK_BW_WRITE_RAW_U8_6((thr), (bw_ctx), (val1), (val2), (val3), (val4), (val5), (val6)); \ + } while (0) +#define DUK_BW_WRITE_ENSURE_XUTF8(thr,bw_ctx,cp) do { \ + DUK_BW_ENSURE((thr), (bw_ctx), DUK_UNICODE_MAX_XUTF8_LENGTH); \ + DUK_BW_WRITE_RAW_XUTF8((thr), (bw_ctx), (cp)); \ + } while (0) +#define DUK_BW_WRITE_ENSURE_CESU8(thr,bw_ctx,cp) do { \ + DUK_BW_ENSURE((thr), (bw_ctx), DUK_UNICODE_MAX_CESU8_LENGTH); \ + DUK_BW_WRITE_RAW_CESU8((thr), (bw_ctx), (cp)); \ + } while (0) +/* XXX: add temporary duk__p pointer here too; sharing */ +#define DUK_BW_WRITE_ENSURE_BYTES(thr,bw_ctx,valptr,valsz) do { \ + const void *duk__valptr; \ + duk_size_t duk__valsz; \ + duk__valptr = (const void *) (valptr); \ + duk__valsz = (duk_size_t) (valsz); \ + DUK_BW_ENSURE((thr), (bw_ctx), duk__valsz); \ + DUK_MEMCPY((void *) ((bw_ctx)->p), duk__valptr, duk__valsz); \ + (bw_ctx)->p += duk__valsz; \ + } while (0) +#define DUK_BW_WRITE_ENSURE_CSTRING(thr,bw_ctx,val) do { \ + const duk_uint8_t *duk__val; \ + duk_size_t duk__val_len; \ + duk__val = (const duk_uint8_t *) (val); \ + duk__val_len = DUK_STRLEN((const char *) duk__val); \ + DUK_BW_ENSURE((thr), (bw_ctx), duk__val_len); \ + DUK_MEMCPY((void *) ((bw_ctx)->p), (const void *) duk__val, duk__val_len); \ + (bw_ctx)->p += duk__val_len; \ + } while (0) +#define DUK_BW_WRITE_ENSURE_HSTRING(thr,bw_ctx,val) do { \ + duk_size_t duk__val_len; \ + duk__val_len = DUK_HSTRING_GET_BYTELEN((val)); \ + DUK_BW_ENSURE((thr), (bw_ctx), duk__val_len); \ + DUK_MEMCPY((void *) ((bw_ctx)->p), (const void *) DUK_HSTRING_GET_DATA((val)), duk__val_len); \ + (bw_ctx)->p += duk__val_len; \ + } while (0) +#define DUK_BW_WRITE_ENSURE_HBUFFER(thr,bw_ctx,val) do { \ + duk_size_t duk__val_len; \ + duk__val_len = DUK_HBUFFER_GET_SIZE((val)); \ + DUK_BW_ENSURE((thr), (bw_ctx), duk__val_len); \ + DUK_MEMCPY((void *) ((bw_ctx)->p), (const void *) DUK_HBUFFER_GET_DATA_PTR((thr)->heap, (val)), duk__val_len); \ + (bw_ctx)->p += duk__val_len; \ + } while (0) +#define DUK_BW_WRITE_ENSURE_HBUFFER_FIXED(thr,bw_ctx,val) do { \ + duk_size_t duk__val_len; \ + duk__val_len = DUK_HBUFFER_FIXED_GET_SIZE((val)); \ + DUK_BW_ENSURE((thr), (bw_ctx), duk__val_len); \ + DUK_MEMCPY((void *) ((bw_ctx)->p), (const void *) DUK_HBUFFER_FIXED_GET_DATA_PTR((thr)->heap, (val)), duk__val_len); \ + (bw_ctx)->p += duk__val_len; \ + } while (0) +#define DUK_BW_WRITE_ENSURE_HBUFFER_DYNAMIC(thr,bw_ctx,val) do { \ + duk_size_t duk__val_len; \ + duk__val_len = DUK_HBUFFER_DYNAMIC_GET_SIZE((val)); \ + DUK_BW_ENSURE((thr), (bw_ctx), duk__val_len); \ + DUK_MEMCPY((void *) ((bw_ctx)->p), (const void *) DUK_HBUFFER_DYNAMIC_GET_DATA_PTR((thr)->heap, (val)), duk__val_len); \ + (bw_ctx)->p += duk__val_len; \ + } while (0) + +#define DUK_BW_WRITE_ENSURE_SLICE(thr,bw,dst_off,dst_len) \ + duk_bw_write_ensure_slice((thr), (bw), (dst_off), (dst_len)) +#define DUK_BW_INSERT_ENSURE_BYTES(thr,bw,dst_off,buf,len) \ + duk_bw_insert_ensure_bytes((thr), (bw), (dst_off), (buf), (len)) +#define DUK_BW_INSERT_ENSURE_SLICE(thr,bw,dst_off,src_off,len) \ + duk_bw_insert_ensure_slice((thr), (bw), (dst_off), (src_off), (len)) +#define DUK_BW_INSERT_ENSURE_AREA(thr,bw,off,len) \ + /* Evaluates to (duk_uint8_t *) pointing to start of area. */ \ + duk_bw_insert_ensure_area((thr), (bw), (off), (len)) +#define DUK_BW_REMOVE_ENSURE_SLICE(thr,bw,off,len) \ + /* No difference between raw/ensure because the buffer shrinks. */ \ + DUK_BW_REMOVE_RAW_SLICE((thr), (bw), (off), (len)) + +/* + * Externs and prototypes + */ + +#if !defined(DUK_SINGLE_FILE) +DUK_INTERNAL_DECL const duk_uint8_t duk_lc_digits[36]; +DUK_INTERNAL_DECL const duk_uint8_t duk_uc_nybbles[16]; +DUK_INTERNAL_DECL const duk_int8_t duk_hex_dectab[256]; +#if defined(DUK_USE_HEX_FASTPATH) +DUK_INTERNAL_DECL const duk_int16_t duk_hex_dectab_shift4[256]; +DUK_INTERNAL_DECL const duk_uint16_t duk_hex_enctab[256]; +#endif +#if defined(DUK_USE_BASE64_FASTPATH) +DUK_INTERNAL_DECL const duk_uint8_t duk_base64_enctab[64]; +DUK_INTERNAL_DECL const duk_int8_t duk_base64_dectab[256]; +#endif +#endif /* !DUK_SINGLE_FILE */ + +/* Note: assumes that duk_util_probe_steps size is 32 */ +#if defined(DUK_USE_HOBJECT_HASH_PART) || defined(DUK_USE_STRTAB_PROBE) +#if !defined(DUK_SINGLE_FILE) +DUK_INTERNAL_DECL duk_uint8_t duk_util_probe_steps[32]; +#endif /* !DUK_SINGLE_FILE */ +#endif + +#if defined(DUK_USE_STRHASH_DENSE) +DUK_INTERNAL_DECL duk_uint32_t duk_util_hashbytes(const duk_uint8_t *data, duk_size_t len, duk_uint32_t seed); +#endif + +#if defined(DUK_USE_HOBJECT_HASH_PART) || defined(DUK_USE_STRTAB_PROBE) +DUK_INTERNAL_DECL duk_uint32_t duk_util_get_hash_prime(duk_uint32_t size); +#endif + +DUK_INTERNAL_DECL duk_int32_t duk_bd_decode(duk_bitdecoder_ctx *ctx, duk_small_int_t bits); +DUK_INTERNAL_DECL duk_small_int_t duk_bd_decode_flag(duk_bitdecoder_ctx *ctx); +DUK_INTERNAL_DECL duk_int32_t duk_bd_decode_flagged(duk_bitdecoder_ctx *ctx, duk_small_int_t bits, duk_int32_t def_value); + +DUK_INTERNAL_DECL void duk_be_encode(duk_bitencoder_ctx *ctx, duk_uint32_t data, duk_small_int_t bits); +DUK_INTERNAL_DECL void duk_be_finish(duk_bitencoder_ctx *ctx); + +DUK_INTERNAL_DECL duk_uint32_t duk_util_tinyrandom_get_bits(duk_hthread *thr, duk_small_int_t n); +DUK_INTERNAL_DECL duk_double_t duk_util_tinyrandom_get_double(duk_hthread *thr); + +DUK_INTERNAL_DECL void duk_bw_init(duk_hthread *thr, duk_bufwriter_ctx *bw_ctx, duk_hbuffer_dynamic *h_buf); +DUK_INTERNAL_DECL void duk_bw_init_pushbuf(duk_hthread *thr, duk_bufwriter_ctx *bw_ctx, duk_size_t buf_size); +DUK_INTERNAL_DECL duk_uint8_t *duk_bw_resize(duk_hthread *thr, duk_bufwriter_ctx *bw_ctx, duk_size_t sz); +DUK_INTERNAL_DECL void duk_bw_compact(duk_hthread *thr, duk_bufwriter_ctx *bw_ctx); +DUK_INTERNAL_DECL void duk_bw_write_raw_slice(duk_hthread *thr, duk_bufwriter_ctx *bw, duk_size_t src_off, duk_size_t len); +DUK_INTERNAL_DECL void duk_bw_write_ensure_slice(duk_hthread *thr, duk_bufwriter_ctx *bw, duk_size_t src_off, duk_size_t len); +DUK_INTERNAL_DECL void duk_bw_insert_raw_bytes(duk_hthread *thr, duk_bufwriter_ctx *bw, duk_size_t dst_off, const duk_uint8_t *buf, duk_size_t len); +DUK_INTERNAL_DECL void duk_bw_insert_ensure_bytes(duk_hthread *thr, duk_bufwriter_ctx *bw, duk_size_t dst_off, const duk_uint8_t *buf, duk_size_t len); +DUK_INTERNAL_DECL void duk_bw_insert_raw_slice(duk_hthread *thr, duk_bufwriter_ctx *bw, duk_size_t dst_off, duk_size_t src_off, duk_size_t len); +DUK_INTERNAL_DECL void duk_bw_insert_ensure_slice(duk_hthread *thr, duk_bufwriter_ctx *bw, duk_size_t dst_off, duk_size_t src_off, duk_size_t len); +DUK_INTERNAL_DECL duk_uint8_t *duk_bw_insert_raw_area(duk_hthread *thr, duk_bufwriter_ctx *bw, duk_size_t off, duk_size_t len); +DUK_INTERNAL_DECL duk_uint8_t *duk_bw_insert_ensure_area(duk_hthread *thr, duk_bufwriter_ctx *bw, duk_size_t off, duk_size_t len); +DUK_INTERNAL_DECL void duk_bw_remove_raw_slice(duk_hthread *thr, duk_bufwriter_ctx *bw, duk_size_t off, duk_size_t len); +/* No duk_bw_remove_ensure_slice(), functionality would be identical. */ + +DUK_INTERNAL_DECL DUK_INLINE duk_uint16_t duk_raw_read_u16_be(duk_uint8_t **p); +DUK_INTERNAL_DECL DUK_INLINE duk_uint32_t duk_raw_read_u32_be(duk_uint8_t **p); +DUK_INTERNAL_DECL DUK_INLINE duk_double_t duk_raw_read_double_be(duk_uint8_t **p); +DUK_INTERNAL_DECL DUK_INLINE void duk_raw_write_u16_be(duk_uint8_t **p, duk_uint16_t val); +DUK_INTERNAL_DECL DUK_INLINE void duk_raw_write_u32_be(duk_uint8_t **p, duk_uint32_t val); +DUK_INTERNAL_DECL DUK_INLINE void duk_raw_write_double_be(duk_uint8_t **p, duk_double_t val); + +#if defined(DUK_USE_DEBUGGER_SUPPORT) /* For now only needed by the debugger. */ +DUK_INTERNAL void duk_byteswap_bytes(duk_uint8_t *p, duk_small_uint_t len); +#endif + +#endif /* DUK_UTIL_H_INCLUDED */ +#line 1 "duk_strings.h" +/* + * Shared error messages: declarations and macros + * + * Error messages are accessed through macros with fine-grained, explicit + * error message distinctions. Concrete error messages are selected by the + * macros and multiple macros can map to the same concrete string to save + * on code footprint. This allows flexible footprint/verbosity tuning with + * minimal code impact. There are a few limitations to this approach: + * (1) switching between plain messages and format strings doesn't work + * conveniently, and (2) conditional strings are a bit awkward to handle. + * + * Because format strings behave differently in the call site (they need to + * be followed by format arguments), they have a special prefix (DUK_STR_FMT_ + * and duk_str_fmt_). + * + * On some compilers using explicit shared strings is preferable; on others + * it may be better to use straight literals because the compiler will combine + * them anyway, and such strings won't end up unnecessarily in a symbol table. + */ + +#ifndef DUK_ERRMSG_H_INCLUDED +#define DUK_ERRMSG_H_INCLUDED + +#define DUK_STR_INTERNAL_ERROR duk_str_internal_error +#define DUK_STR_INVALID_COUNT duk_str_invalid_count +#define DUK_STR_INVALID_CALL_ARGS duk_str_invalid_call_args +#define DUK_STR_NOT_CONSTRUCTABLE duk_str_not_constructable +#define DUK_STR_NOT_CALLABLE duk_str_not_callable +#define DUK_STR_NOT_EXTENSIBLE duk_str_not_extensible +#define DUK_STR_NOT_WRITABLE duk_str_not_writable +#define DUK_STR_NOT_CONFIGURABLE duk_str_not_configurable + +#if !defined(DUK_SINGLE_FILE) +DUK_INTERNAL_DECL const char *duk_str_internal_error; +DUK_INTERNAL_DECL const char *duk_str_invalid_count; +DUK_INTERNAL_DECL const char *duk_str_invalid_call_args; +DUK_INTERNAL_DECL const char *duk_str_not_constructable; +DUK_INTERNAL_DECL const char *duk_str_not_callable; +DUK_INTERNAL_DECL const char *duk_str_not_extensible; +DUK_INTERNAL_DECL const char *duk_str_not_writable; +DUK_INTERNAL_DECL const char *duk_str_not_configurable; +#endif /* !DUK_SINGLE_FILE */ + +#define DUK_STR_INVALID_CONTEXT duk_str_invalid_context +#define DUK_STR_INVALID_INDEX duk_str_invalid_call_args +#define DUK_STR_PUSH_BEYOND_ALLOC_STACK duk_str_push_beyond_alloc_stack +#define DUK_STR_NOT_UNDEFINED duk_str_unexpected_type +#define DUK_STR_NOT_NULL duk_str_unexpected_type +#define DUK_STR_NOT_BOOLEAN duk_str_unexpected_type +#define DUK_STR_NOT_NUMBER duk_str_unexpected_type +#define DUK_STR_NOT_STRING duk_str_unexpected_type +#define DUK_STR_NOT_OBJECT duk_str_unexpected_type +#define DUK_STR_NOT_POINTER duk_str_unexpected_type +#define DUK_STR_NOT_BUFFER duk_str_not_buffer /* still in use with verbose messages */ +#define DUK_STR_UNEXPECTED_TYPE duk_str_unexpected_type +#define DUK_STR_NOT_THREAD duk_str_unexpected_type +#define DUK_STR_NOT_COMPILEDFUNCTION duk_str_unexpected_type +#define DUK_STR_NOT_NATIVEFUNCTION duk_str_unexpected_type +#define DUK_STR_NOT_C_FUNCTION duk_str_unexpected_type +#define DUK_STR_NOT_FUNCTION duk_str_unexpected_type +#define DUK_STR_NOT_REGEXP duk_str_unexpected_type +#define DUK_STR_DEFAULTVALUE_COERCE_FAILED duk_str_defaultvalue_coerce_failed +#define DUK_STR_NUMBER_OUTSIDE_RANGE duk_str_number_outside_range +#define DUK_STR_NOT_OBJECT_COERCIBLE duk_str_not_object_coercible +#define DUK_STR_STRING_TOO_LONG duk_str_string_too_long +#define DUK_STR_BUFFER_TOO_LONG duk_str_buffer_too_long +#define DUK_STR_SPRINTF_TOO_LONG duk_str_sprintf_too_long +#define DUK_STR_ALLOC_FAILED duk_str_alloc_failed +#define DUK_STR_POP_TOO_MANY duk_str_pop_too_many +#define DUK_STR_WRONG_BUFFER_TYPE duk_str_wrong_buffer_type +#define DUK_STR_ENCODE_FAILED duk_str_encode_failed +#define DUK_STR_DECODE_FAILED duk_str_decode_failed +#define DUK_STR_NO_SOURCECODE duk_str_no_sourcecode +#define DUK_STR_CONCAT_RESULT_TOO_LONG duk_str_concat_result_too_long +#define DUK_STR_UNIMPLEMENTED duk_str_unimplemented +#define DUK_STR_UNSUPPORTED duk_str_unsupported +#define DUK_STR_ARRAY_LENGTH_OVER_2G duk_str_array_length_over_2g + +#if !defined(DUK_SINGLE_FILE) +DUK_INTERNAL_DECL const char *duk_str_invalid_context; +DUK_INTERNAL_DECL const char *duk_str_push_beyond_alloc_stack; +DUK_INTERNAL_DECL const char *duk_str_not_buffer; +DUK_INTERNAL_DECL const char *duk_str_unexpected_type; +DUK_INTERNAL_DECL const char *duk_str_defaultvalue_coerce_failed; +DUK_INTERNAL_DECL const char *duk_str_number_outside_range; +DUK_INTERNAL_DECL const char *duk_str_not_object_coercible; +DUK_INTERNAL_DECL const char *duk_str_string_too_long; +DUK_INTERNAL_DECL const char *duk_str_buffer_too_long; +DUK_INTERNAL_DECL const char *duk_str_sprintf_too_long; +DUK_INTERNAL_DECL const char *duk_str_alloc_failed; +DUK_INTERNAL_DECL const char *duk_str_pop_too_many; +DUK_INTERNAL_DECL const char *duk_str_wrong_buffer_type; +DUK_INTERNAL_DECL const char *duk_str_encode_failed; +DUK_INTERNAL_DECL const char *duk_str_decode_failed; +DUK_INTERNAL_DECL const char *duk_str_no_sourcecode; +DUK_INTERNAL_DECL const char *duk_str_concat_result_too_long; +DUK_INTERNAL_DECL const char *duk_str_unimplemented; +DUK_INTERNAL_DECL const char *duk_str_unsupported; +DUK_INTERNAL_DECL const char *duk_str_array_length_over_2g; +#endif /* !DUK_SINGLE_FILE */ + +#define DUK_STR_FMT_PTR duk_str_fmt_ptr +#define DUK_STR_FMT_INVALID_JSON duk_str_fmt_invalid_json +#define DUK_STR_JSONDEC_RECLIMIT duk_str_jsondec_reclimit +#define DUK_STR_JSONENC_RECLIMIT duk_str_jsonenc_reclimit +#define DUK_STR_CYCLIC_INPUT duk_str_cyclic_input + +#if !defined(DUK_SINGLE_FILE) +DUK_INTERNAL_DECL const char *duk_str_fmt_ptr; +DUK_INTERNAL_DECL const char *duk_str_fmt_invalid_json; +DUK_INTERNAL_DECL const char *duk_str_jsondec_reclimit; +DUK_INTERNAL_DECL const char *duk_str_jsonenc_reclimit; +DUK_INTERNAL_DECL const char *duk_str_cyclic_input; +#endif /* !DUK_SINGLE_FILE */ + +#define DUK_STR_PROXY_REVOKED duk_str_proxy_revoked +#define DUK_STR_INVALID_BASE duk_str_invalid_base +#define DUK_STR_STRICT_CALLER_READ duk_str_strict_caller_read +#define DUK_STR_PROXY_REJECTED duk_str_proxy_rejected +#define DUK_STR_INVALID_ARRAY_LENGTH duk_str_invalid_array_length +#define DUK_STR_ARRAY_LENGTH_WRITE_FAILED duk_str_array_length_write_failed +#define DUK_STR_ARRAY_LENGTH_NOT_WRITABLE duk_str_array_length_not_writable +#define DUK_STR_SETTER_UNDEFINED duk_str_setter_undefined +#define DUK_STR_REDEFINE_VIRT_PROP duk_str_redefine_virt_prop +#define DUK_STR_INVALID_DESCRIPTOR duk_str_invalid_descriptor +#define DUK_STR_PROPERTY_IS_VIRTUAL duk_str_property_is_virtual + +#if !defined(DUK_SINGLE_FILE) +DUK_INTERNAL_DECL const char *duk_str_proxy_revoked; +DUK_INTERNAL_DECL const char *duk_str_invalid_base; +DUK_INTERNAL_DECL const char *duk_str_strict_caller_read; +DUK_INTERNAL_DECL const char *duk_str_proxy_rejected; +DUK_INTERNAL_DECL const char *duk_str_invalid_array_length; +DUK_INTERNAL_DECL const char *duk_str_array_length_write_failed; +DUK_INTERNAL_DECL const char *duk_str_array_length_not_writable; +DUK_INTERNAL_DECL const char *duk_str_setter_undefined; +DUK_INTERNAL_DECL const char *duk_str_redefine_virt_prop; +DUK_INTERNAL_DECL const char *duk_str_invalid_descriptor; +DUK_INTERNAL_DECL const char *duk_str_property_is_virtual; +#endif /* !DUK_SINGLE_FILE */ + +#define DUK_STR_PARSE_ERROR duk_str_parse_error +#define DUK_STR_DUPLICATE_LABEL duk_str_duplicate_label +#define DUK_STR_INVALID_LABEL duk_str_invalid_label +#define DUK_STR_INVALID_ARRAY_LITERAL duk_str_invalid_array_literal +#define DUK_STR_INVALID_OBJECT_LITERAL duk_str_invalid_object_literal +#define DUK_STR_INVALID_VAR_DECLARATION duk_str_invalid_var_declaration +#define DUK_STR_CANNOT_DELETE_IDENTIFIER duk_str_cannot_delete_identifier +#define DUK_STR_INVALID_EXPRESSION duk_str_invalid_expression +#define DUK_STR_INVALID_LVALUE duk_str_invalid_lvalue +#define DUK_STR_EXPECTED_IDENTIFIER duk_str_expected_identifier +#define DUK_STR_EMPTY_EXPR_NOT_ALLOWED duk_str_empty_expr_not_allowed +#define DUK_STR_INVALID_FOR duk_str_invalid_for +#define DUK_STR_INVALID_SWITCH duk_str_invalid_switch +#define DUK_STR_INVALID_BREAK_CONT_LABEL duk_str_invalid_break_cont_label +#define DUK_STR_INVALID_RETURN duk_str_invalid_return +#define DUK_STR_INVALID_TRY duk_str_invalid_try +#define DUK_STR_INVALID_THROW duk_str_invalid_throw +#define DUK_STR_WITH_IN_STRICT_MODE duk_str_with_in_strict_mode +#define DUK_STR_FUNC_STMT_NOT_ALLOWED duk_str_func_stmt_not_allowed +#define DUK_STR_UNTERMINATED_STMT duk_str_unterminated_stmt +#define DUK_STR_INVALID_ARG_NAME duk_str_invalid_arg_name +#define DUK_STR_INVALID_FUNC_NAME duk_str_invalid_func_name +#define DUK_STR_INVALID_GETSET_NAME duk_str_invalid_getset_name +#define DUK_STR_FUNC_NAME_REQUIRED duk_str_func_name_required + +#if !defined(DUK_SINGLE_FILE) +DUK_INTERNAL_DECL const char *duk_str_parse_error; +DUK_INTERNAL_DECL const char *duk_str_duplicate_label; +DUK_INTERNAL_DECL const char *duk_str_invalid_label; +DUK_INTERNAL_DECL const char *duk_str_invalid_array_literal; +DUK_INTERNAL_DECL const char *duk_str_invalid_object_literal; +DUK_INTERNAL_DECL const char *duk_str_invalid_var_declaration; +DUK_INTERNAL_DECL const char *duk_str_cannot_delete_identifier; +DUK_INTERNAL_DECL const char *duk_str_invalid_expression; +DUK_INTERNAL_DECL const char *duk_str_invalid_lvalue; +DUK_INTERNAL_DECL const char *duk_str_expected_identifier; +DUK_INTERNAL_DECL const char *duk_str_empty_expr_not_allowed; +DUK_INTERNAL_DECL const char *duk_str_invalid_for; +DUK_INTERNAL_DECL const char *duk_str_invalid_switch; +DUK_INTERNAL_DECL const char *duk_str_invalid_break_cont_label; +DUK_INTERNAL_DECL const char *duk_str_invalid_return; +DUK_INTERNAL_DECL const char *duk_str_invalid_try; +DUK_INTERNAL_DECL const char *duk_str_invalid_throw; +DUK_INTERNAL_DECL const char *duk_str_with_in_strict_mode; +DUK_INTERNAL_DECL const char *duk_str_func_stmt_not_allowed; +DUK_INTERNAL_DECL const char *duk_str_unterminated_stmt; +DUK_INTERNAL_DECL const char *duk_str_invalid_arg_name; +DUK_INTERNAL_DECL const char *duk_str_invalid_func_name; +DUK_INTERNAL_DECL const char *duk_str_invalid_getset_name; +DUK_INTERNAL_DECL const char *duk_str_func_name_required; +#endif /* !DUK_SINGLE_FILE */ + +#define DUK_STR_INVALID_QUANTIFIER_NO_ATOM duk_str_invalid_quantifier_no_atom +#define DUK_STR_INVALID_QUANTIFIER_VALUES duk_str_invalid_quantifier_values +#define DUK_STR_QUANTIFIER_TOO_MANY_COPIES duk_str_quantifier_too_many_copies +#define DUK_STR_UNEXPECTED_CLOSING_PAREN duk_str_unexpected_closing_paren +#define DUK_STR_UNEXPECTED_END_OF_PATTERN duk_str_unexpected_end_of_pattern +#define DUK_STR_UNEXPECTED_REGEXP_TOKEN duk_str_unexpected_regexp_token +#define DUK_STR_INVALID_REGEXP_FLAGS duk_str_invalid_regexp_flags +#define DUK_STR_INVALID_BACKREFS duk_str_invalid_backrefs + +#if !defined(DUK_SINGLE_FILE) +DUK_INTERNAL_DECL const char *duk_str_invalid_quantifier_no_atom; +DUK_INTERNAL_DECL const char *duk_str_invalid_quantifier_values; +DUK_INTERNAL_DECL const char *duk_str_quantifier_too_many_copies; +DUK_INTERNAL_DECL const char *duk_str_unexpected_closing_paren; +DUK_INTERNAL_DECL const char *duk_str_unexpected_end_of_pattern; +DUK_INTERNAL_DECL const char *duk_str_unexpected_regexp_token; +DUK_INTERNAL_DECL const char *duk_str_invalid_regexp_flags; +DUK_INTERNAL_DECL const char *duk_str_invalid_backrefs; +#endif /* !DUK_SINGLE_FILE */ + +#define DUK_STR_VALSTACK_LIMIT duk_str_valstack_limit +#define DUK_STR_CALLSTACK_LIMIT duk_str_callstack_limit +#define DUK_STR_CATCHSTACK_LIMIT duk_str_catchstack_limit +#define DUK_STR_PROTOTYPE_CHAIN_LIMIT duk_str_prototype_chain_limit +#define DUK_STR_BOUND_CHAIN_LIMIT duk_str_bound_chain_limit +#define DUK_STR_C_CALLSTACK_LIMIT duk_str_c_callstack_limit +#define DUK_STR_COMPILER_RECURSION_LIMIT duk_str_compiler_recursion_limit +#define DUK_STR_BYTECODE_LIMIT duk_str_bytecode_limit +#define DUK_STR_REG_LIMIT duk_str_reg_limit +#define DUK_STR_TEMP_LIMIT duk_str_temp_limit +#define DUK_STR_CONST_LIMIT duk_str_const_limit +#define DUK_STR_FUNC_LIMIT duk_str_func_limit +#define DUK_STR_REGEXP_COMPILER_RECURSION_LIMIT duk_str_regexp_compiler_recursion_limit +#define DUK_STR_REGEXP_EXECUTOR_RECURSION_LIMIT duk_str_regexp_executor_recursion_limit +#define DUK_STR_REGEXP_EXECUTOR_STEP_LIMIT duk_str_regexp_executor_step_limit + +#if !defined(DUK_SINGLE_FILE) +DUK_INTERNAL_DECL const char *duk_str_valstack_limit; +DUK_INTERNAL_DECL const char *duk_str_callstack_limit; +DUK_INTERNAL_DECL const char *duk_str_catchstack_limit; +DUK_INTERNAL_DECL const char *duk_str_prototype_chain_limit; +DUK_INTERNAL_DECL const char *duk_str_bound_chain_limit; +DUK_INTERNAL_DECL const char *duk_str_c_callstack_limit; +DUK_INTERNAL_DECL const char *duk_str_compiler_recursion_limit; +DUK_INTERNAL_DECL const char *duk_str_bytecode_limit; +DUK_INTERNAL_DECL const char *duk_str_reg_limit; +DUK_INTERNAL_DECL const char *duk_str_temp_limit; +DUK_INTERNAL_DECL const char *duk_str_const_limit; +DUK_INTERNAL_DECL const char *duk_str_func_limit; +DUK_INTERNAL_DECL const char *duk_str_regexp_compiler_recursion_limit; +DUK_INTERNAL_DECL const char *duk_str_regexp_executor_recursion_limit; +DUK_INTERNAL_DECL const char *duk_str_regexp_executor_step_limit; +#endif /* !DUK_SINGLE_FILE */ + +#if !defined(DUK_SINGLE_FILE) +DUK_INTERNAL_DECL const char *duk_str_anon; +#endif /* !DUK_SINGLE_FILE */ + +#endif /* DUK_ERRMSG_H_INCLUDED */ +#line 1 "duk_js_bytecode.h" +/* + * Ecmascript bytecode + */ + +#ifndef DUK_JS_BYTECODE_H_INCLUDED +#define DUK_JS_BYTECODE_H_INCLUDED + +/* + * Logical instruction layout + * ========================== + * + * !3!3!2!2!2!2!2!2!2!2!2!2!1!1!1!1!1!1!1!1!1!1! ! ! ! ! ! ! ! ! ! ! + * !1!0!9!8!7!6!5!4!3!2!1!0!9!8!7!6!5!4!3!2!1!0!9!8!7!6!5!4!3!2!1!0! + * +---------------------------------------------------+-----------+ + * ! C ! B ! A ! OP ! + * +---------------------------------------------------+-----------+ + * + * OP (6 bits): opcode (DUK_OP_*), access should be fastest + * A (8 bits): typically a target register number + * B (9 bits): typically first source register/constant number + * C (9 bits): typically second source register/constant number + * + * Some instructions combine BC or ABC together for larger parameter values. + * Signed integers (e.g. jump offsets) are encoded as unsigned, with an opcode + * specific bias. B and C may denote a register or a constant, see + * DUK_BC_ISREG() and DUK_BC_ISCONST(). + * + * Note: macro naming is a bit misleading, e.g. "ABC" in macro name but + * the field layout is logically "CBA". + */ + +typedef duk_uint32_t duk_instr_t; + +#define DUK_DEC_OP(x) ((x) & 0x3fUL) +#define DUK_DEC_A(x) (((x) >> 6) & 0xffUL) +#define DUK_DEC_B(x) (((x) >> 14) & 0x1ffUL) +#define DUK_DEC_C(x) (((x) >> 23) & 0x1ffUL) +#define DUK_DEC_BC(x) (((x) >> 14) & 0x3ffffUL) +#define DUK_DEC_ABC(x) (((x) >> 6) & 0x3ffffffUL) + +#define DUK_ENC_OP(op) ((duk_instr_t) (op)) +#define DUK_ENC_OP_ABC(op,abc) ((duk_instr_t) ( \ + (((duk_instr_t) (abc)) << 6) | \ + ((duk_instr_t) (op)) \ + )) +#define DUK_ENC_OP_A_BC(op,a,bc) ((duk_instr_t) ( \ + (((duk_instr_t) (bc)) << 14) | \ + (((duk_instr_t) (a)) << 6) | \ + ((duk_instr_t) (op)) \ + )) +#define DUK_ENC_OP_A_B_C(op,a,b,c) ((duk_instr_t) ( \ + (((duk_instr_t) (c)) << 23) | \ + (((duk_instr_t) (b)) << 14) | \ + (((duk_instr_t) (a)) << 6) | \ + ((duk_instr_t) (op)) \ + )) +#define DUK_ENC_OP_A_B(op,a,b) DUK_ENC_OP_A_B_C(op,a,b,0) +#define DUK_ENC_OP_A(op,a) DUK_ENC_OP_A_B_C(op,a,0,0) + +/* Constants should be signed so that signed arithmetic involving them + * won't cause values to be coerced accidentally to unsigned. + */ +#define DUK_BC_OP_MIN 0 +#define DUK_BC_OP_MAX 0x3fL +#define DUK_BC_A_MIN 0 +#define DUK_BC_A_MAX 0xffL +#define DUK_BC_B_MIN 0 +#define DUK_BC_B_MAX 0x1ffL +#define DUK_BC_C_MIN 0 +#define DUK_BC_C_MAX 0x1ffL +#define DUK_BC_BC_MIN 0 +#define DUK_BC_BC_MAX 0x3ffffL +#define DUK_BC_ABC_MIN 0 +#define DUK_BC_ABC_MAX 0x3ffffffL +#define DUK_BC_EXTRAOP_MIN DUK_BC_A_MIN +#define DUK_BC_EXTRAOP_MAX DUK_BC_A_MAX + +#define DUK_OP_LDREG 0 +#define DUK_OP_STREG 1 +#define DUK_OP_LDCONST 2 +#define DUK_OP_LDINT 3 +#define DUK_OP_LDINTX 4 +#define DUK_OP_MPUTOBJ 5 +#define DUK_OP_MPUTOBJI 6 +#define DUK_OP_MPUTARR 7 +#define DUK_OP_MPUTARRI 8 +#define DUK_OP_NEW 9 +#define DUK_OP_NEWI 10 +#define DUK_OP_REGEXP 11 +#define DUK_OP_CSREG 12 +#define DUK_OP_CSREGI 13 +#define DUK_OP_GETVAR 14 +#define DUK_OP_PUTVAR 15 +#define DUK_OP_DECLVAR 16 +#define DUK_OP_DELVAR 17 +#define DUK_OP_CSVAR 18 +#define DUK_OP_CSVARI 19 +#define DUK_OP_CLOSURE 20 +#define DUK_OP_GETPROP 21 +#define DUK_OP_PUTPROP 22 +#define DUK_OP_DELPROP 23 +#define DUK_OP_CSPROP 24 +#define DUK_OP_CSPROPI 25 +#define DUK_OP_ADD 26 +#define DUK_OP_SUB 27 +#define DUK_OP_MUL 28 +#define DUK_OP_DIV 29 +#define DUK_OP_MOD 30 +#define DUK_OP_BAND 31 +#define DUK_OP_BOR 32 +#define DUK_OP_BXOR 33 +#define DUK_OP_BASL 34 +#define DUK_OP_BLSR 35 +#define DUK_OP_BASR 36 +#define DUK_OP_EQ 37 +#define DUK_OP_NEQ 38 +#define DUK_OP_SEQ 39 +#define DUK_OP_SNEQ 40 +#define DUK_OP_GT 41 +#define DUK_OP_GE 42 +#define DUK_OP_LT 43 +#define DUK_OP_LE 44 +#define DUK_OP_IF 45 +#define DUK_OP_JUMP 46 +#define DUK_OP_RETURN 47 +#define DUK_OP_CALL 48 +#define DUK_OP_CALLI 49 +#define DUK_OP_TRYCATCH 50 +#define DUK_OP_EXTRA 51 +#define DUK_OP_PREINCR 52 /* pre/post opcode values have constraints, */ +#define DUK_OP_PREDECR 53 /* see duk_js_executor.c */ +#define DUK_OP_POSTINCR 54 +#define DUK_OP_POSTDECR 55 +#define DUK_OP_PREINCV 56 +#define DUK_OP_PREDECV 57 +#define DUK_OP_POSTINCV 58 +#define DUK_OP_POSTDECV 59 +#define DUK_OP_PREINCP 60 +#define DUK_OP_PREDECP 61 +#define DUK_OP_POSTINCP 62 +#define DUK_OP_POSTDECP 63 +#define DUK_OP_NONE 64 /* dummy value used as marker */ + +/* DUK_OP_EXTRA, sub-operation in A */ +#define DUK_EXTRAOP_NOP 0 +#define DUK_EXTRAOP_INVALID 1 +#define DUK_EXTRAOP_LDTHIS 2 +#define DUK_EXTRAOP_LDUNDEF 3 +#define DUK_EXTRAOP_LDNULL 4 +#define DUK_EXTRAOP_LDTRUE 5 +#define DUK_EXTRAOP_LDFALSE 6 +#define DUK_EXTRAOP_NEWOBJ 7 +#define DUK_EXTRAOP_NEWARR 8 +#define DUK_EXTRAOP_SETALEN 9 +#define DUK_EXTRAOP_TYPEOF 10 +#define DUK_EXTRAOP_TYPEOFID 11 +#define DUK_EXTRAOP_INITENUM 12 +#define DUK_EXTRAOP_NEXTENUM 13 +#define DUK_EXTRAOP_INITSET 14 +#define DUK_EXTRAOP_INITSETI 15 +#define DUK_EXTRAOP_INITGET 16 +#define DUK_EXTRAOP_INITGETI 17 +#define DUK_EXTRAOP_ENDTRY 18 +#define DUK_EXTRAOP_ENDCATCH 19 +#define DUK_EXTRAOP_ENDFIN 20 +#define DUK_EXTRAOP_THROW 21 +#define DUK_EXTRAOP_INVLHS 22 +#define DUK_EXTRAOP_UNM 23 +#define DUK_EXTRAOP_UNP 24 +#define DUK_EXTRAOP_DEBUGGER 25 +#define DUK_EXTRAOP_BREAK 26 +#define DUK_EXTRAOP_CONTINUE 27 +#define DUK_EXTRAOP_BNOT 28 +#define DUK_EXTRAOP_LNOT 29 +#define DUK_EXTRAOP_INSTOF 30 +#define DUK_EXTRAOP_IN 31 +#define DUK_EXTRAOP_LABEL 32 +#define DUK_EXTRAOP_ENDLABEL 33 + +/* DUK_OP_CALL flags in A */ +#define DUK_BC_CALL_FLAG_TAILCALL (1 << 0) +#define DUK_BC_CALL_FLAG_EVALCALL (1 << 1) + +/* DUK_OP_TRYCATCH flags in A */ +#define DUK_BC_TRYCATCH_FLAG_HAVE_CATCH (1 << 0) +#define DUK_BC_TRYCATCH_FLAG_HAVE_FINALLY (1 << 1) +#define DUK_BC_TRYCATCH_FLAG_CATCH_BINDING (1 << 2) +#define DUK_BC_TRYCATCH_FLAG_WITH_BINDING (1 << 3) + +/* DUK_OP_RETURN flags in A */ +#define DUK_BC_RETURN_FLAG_HAVE_RETVAL (1 << 0) + +/* DUK_OP_DECLVAR flags in A; bottom bits are reserved for propdesc flags (DUK_PROPDESC_FLAG_XXX) */ +#define DUK_BC_DECLVAR_FLAG_UNDEF_VALUE (1 << 4) /* use 'undefined' for value automatically */ +#define DUK_BC_DECLVAR_FLAG_FUNC_DECL (1 << 5) /* function declaration */ + +/* misc constants and helper macros */ +#define DUK_BC_REGLIMIT 256 /* if B/C is >= this value, refers to a const */ +#define DUK_BC_ISREG(x) ((x) < DUK_BC_REGLIMIT) +#define DUK_BC_ISCONST(x) ((x) >= DUK_BC_REGLIMIT) +#define DUK_BC_LDINT_BIAS (1L << 17) +#define DUK_BC_LDINTX_SHIFT 18 +#define DUK_BC_JUMP_BIAS (1L << 25) + +#endif /* DUK_JS_BYTECODE_H_INCLUDED */ +#line 1 "duk_lexer.h" +/* + * Lexer defines. + */ + +#ifndef DUK_LEXER_H_INCLUDED +#define DUK_LEXER_H_INCLUDED + +typedef void (*duk_re_range_callback)(void *user, duk_codepoint_t r1, duk_codepoint_t r2, duk_bool_t direct); + +/* + * A token is interpreted as any possible production of InputElementDiv + * and InputElementRegExp, see E5 Section 7 in its entirety. Note that + * the E5 "Token" production does not cover all actual tokens of the + * language (which is explicitly stated in the specification, Section 7.5). + * Null and boolean literals are defined as part of both ReservedWord + * (E5 Section 7.6.1) and Literal (E5 Section 7.8) productions. Here, + * null and boolean values have literal tokens, and are not reserved + * words. + * + * Decimal literal negative/positive sign is -not- part of DUK_TOK_NUMBER. + * The number tokens always have a non-negative value. The unary minus + * operator in "-1.0" is optimized during compilation to yield a single + * negative constant. + * + * Token numbering is free except that reserved words are required to be + * in a continuous range and in a particular order. See genstrings.py. + */ + +#define DUK_LEXER_INITCTX(ctx) duk_lexer_initctx((ctx)) + +#define DUK_LEXER_SETPOINT(ctx,pt) duk_lexer_setpoint((ctx), (pt)) + +#define DUK_LEXER_GETPOINT(ctx,pt) do { (pt)->offset = (ctx)->window[0].offset; \ + (pt)->line = (ctx)->window[0].line; } while (0) + +/* currently 6 characters of lookup are actually needed (duk_lexer.c) */ +#define DUK_LEXER_WINDOW_SIZE 6 +#if defined(DUK_USE_LEXER_SLIDING_WINDOW) +#define DUK_LEXER_BUFFER_SIZE 64 +#endif + +#define DUK_TOK_MINVAL 0 + +/* returned after EOF (infinite amount) */ +#define DUK_TOK_EOF 0 + +/* identifier names (E5 Section 7.6) */ +#define DUK_TOK_IDENTIFIER 1 + +/* reserved words: keywords */ +#define DUK_TOK_START_RESERVED 2 +#define DUK_TOK_BREAK 2 +#define DUK_TOK_CASE 3 +#define DUK_TOK_CATCH 4 +#define DUK_TOK_CONTINUE 5 +#define DUK_TOK_DEBUGGER 6 +#define DUK_TOK_DEFAULT 7 +#define DUK_TOK_DELETE 8 +#define DUK_TOK_DO 9 +#define DUK_TOK_ELSE 10 +#define DUK_TOK_FINALLY 11 +#define DUK_TOK_FOR 12 +#define DUK_TOK_FUNCTION 13 +#define DUK_TOK_IF 14 +#define DUK_TOK_IN 15 +#define DUK_TOK_INSTANCEOF 16 +#define DUK_TOK_NEW 17 +#define DUK_TOK_RETURN 18 +#define DUK_TOK_SWITCH 19 +#define DUK_TOK_THIS 20 +#define DUK_TOK_THROW 21 +#define DUK_TOK_TRY 22 +#define DUK_TOK_TYPEOF 23 +#define DUK_TOK_VAR 24 +#define DUK_TOK_CONST 25 +#define DUK_TOK_VOID 26 +#define DUK_TOK_WHILE 27 +#define DUK_TOK_WITH 28 + +/* reserved words: future reserved words */ +#define DUK_TOK_CLASS 29 +#define DUK_TOK_ENUM 30 +#define DUK_TOK_EXPORT 31 +#define DUK_TOK_EXTENDS 32 +#define DUK_TOK_IMPORT 33 +#define DUK_TOK_SUPER 34 + +/* "null", "true", and "false" are always reserved words. + * Note that "get" and "set" are not! + */ +#define DUK_TOK_NULL 35 +#define DUK_TOK_TRUE 36 +#define DUK_TOK_FALSE 37 + +/* reserved words: additional future reserved words in strict mode */ +#define DUK_TOK_START_STRICT_RESERVED 38 /* inclusive */ +#define DUK_TOK_IMPLEMENTS 38 +#define DUK_TOK_INTERFACE 39 +#define DUK_TOK_LET 40 +#define DUK_TOK_PACKAGE 41 +#define DUK_TOK_PRIVATE 42 +#define DUK_TOK_PROTECTED 43 +#define DUK_TOK_PUBLIC 44 +#define DUK_TOK_STATIC 45 +#define DUK_TOK_YIELD 46 + +#define DUK_TOK_END_RESERVED 47 /* exclusive */ + +/* "get" and "set" are tokens but NOT ReservedWords. They are currently + * parsed and identifiers and these defines are actually now unused. + */ +#define DUK_TOK_GET 47 +#define DUK_TOK_SET 48 + +/* punctuators (unlike the spec, also includes "/" and "/=") */ +#define DUK_TOK_LCURLY 49 +#define DUK_TOK_RCURLY 50 +#define DUK_TOK_LBRACKET 51 +#define DUK_TOK_RBRACKET 52 +#define DUK_TOK_LPAREN 53 +#define DUK_TOK_RPAREN 54 +#define DUK_TOK_PERIOD 55 +#define DUK_TOK_SEMICOLON 56 +#define DUK_TOK_COMMA 57 +#define DUK_TOK_LT 58 +#define DUK_TOK_GT 59 +#define DUK_TOK_LE 60 +#define DUK_TOK_GE 61 +#define DUK_TOK_EQ 62 +#define DUK_TOK_NEQ 63 +#define DUK_TOK_SEQ 64 +#define DUK_TOK_SNEQ 65 +#define DUK_TOK_ADD 66 +#define DUK_TOK_SUB 67 +#define DUK_TOK_MUL 68 +#define DUK_TOK_DIV 69 +#define DUK_TOK_MOD 70 +#define DUK_TOK_INCREMENT 71 +#define DUK_TOK_DECREMENT 72 +#define DUK_TOK_ALSHIFT 73 /* named "arithmetic" because result is signed */ +#define DUK_TOK_ARSHIFT 74 +#define DUK_TOK_RSHIFT 75 +#define DUK_TOK_BAND 76 +#define DUK_TOK_BOR 77 +#define DUK_TOK_BXOR 78 +#define DUK_TOK_LNOT 79 +#define DUK_TOK_BNOT 80 +#define DUK_TOK_LAND 81 +#define DUK_TOK_LOR 82 +#define DUK_TOK_QUESTION 83 +#define DUK_TOK_COLON 84 +#define DUK_TOK_EQUALSIGN 85 +#define DUK_TOK_ADD_EQ 86 +#define DUK_TOK_SUB_EQ 87 +#define DUK_TOK_MUL_EQ 88 +#define DUK_TOK_DIV_EQ 89 +#define DUK_TOK_MOD_EQ 90 +#define DUK_TOK_ALSHIFT_EQ 91 +#define DUK_TOK_ARSHIFT_EQ 92 +#define DUK_TOK_RSHIFT_EQ 93 +#define DUK_TOK_BAND_EQ 94 +#define DUK_TOK_BOR_EQ 95 +#define DUK_TOK_BXOR_EQ 96 + +/* literals (E5 Section 7.8), except null, true, false, which are treated + * like reserved words (above). + */ +#define DUK_TOK_NUMBER 97 +#define DUK_TOK_STRING 98 +#define DUK_TOK_REGEXP 99 + +#define DUK_TOK_MAXVAL 99 /* inclusive */ + +/* Convert heap string index to a token (reserved words) */ +#define DUK_STRIDX_TO_TOK(x) ((x) - DUK_STRIDX_START_RESERVED + DUK_TOK_START_RESERVED) + +/* Sanity check */ +#if (DUK_TOK_MAXVAL > 255) +#error DUK_TOK_MAXVAL too large, code assumes it fits into 8 bits +#endif + +/* Sanity checks for string and token defines */ +#if (DUK_STRIDX_TO_TOK(DUK_STRIDX_BREAK) != DUK_TOK_BREAK) +#error mismatch in token defines +#endif +#if (DUK_STRIDX_TO_TOK(DUK_STRIDX_CASE) != DUK_TOK_CASE) +#error mismatch in token defines +#endif +#if (DUK_STRIDX_TO_TOK(DUK_STRIDX_CATCH) != DUK_TOK_CATCH) +#error mismatch in token defines +#endif +#if (DUK_STRIDX_TO_TOK(DUK_STRIDX_CONTINUE) != DUK_TOK_CONTINUE) +#error mismatch in token defines +#endif +#if (DUK_STRIDX_TO_TOK(DUK_STRIDX_DEBUGGER) != DUK_TOK_DEBUGGER) +#error mismatch in token defines +#endif +#if (DUK_STRIDX_TO_TOK(DUK_STRIDX_DEFAULT) != DUK_TOK_DEFAULT) +#error mismatch in token defines +#endif +#if (DUK_STRIDX_TO_TOK(DUK_STRIDX_DELETE) != DUK_TOK_DELETE) +#error mismatch in token defines +#endif +#if (DUK_STRIDX_TO_TOK(DUK_STRIDX_DO) != DUK_TOK_DO) +#error mismatch in token defines +#endif +#if (DUK_STRIDX_TO_TOK(DUK_STRIDX_ELSE) != DUK_TOK_ELSE) +#error mismatch in token defines +#endif +#if (DUK_STRIDX_TO_TOK(DUK_STRIDX_FINALLY) != DUK_TOK_FINALLY) +#error mismatch in token defines +#endif +#if (DUK_STRIDX_TO_TOK(DUK_STRIDX_FOR) != DUK_TOK_FOR) +#error mismatch in token defines +#endif +#if (DUK_STRIDX_TO_TOK(DUK_STRIDX_LC_FUNCTION) != DUK_TOK_FUNCTION) +#error mismatch in token defines +#endif +#if (DUK_STRIDX_TO_TOK(DUK_STRIDX_IF) != DUK_TOK_IF) +#error mismatch in token defines +#endif +#if (DUK_STRIDX_TO_TOK(DUK_STRIDX_IN) != DUK_TOK_IN) +#error mismatch in token defines +#endif +#if (DUK_STRIDX_TO_TOK(DUK_STRIDX_INSTANCEOF) != DUK_TOK_INSTANCEOF) +#error mismatch in token defines +#endif +#if (DUK_STRIDX_TO_TOK(DUK_STRIDX_NEW) != DUK_TOK_NEW) +#error mismatch in token defines +#endif +#if (DUK_STRIDX_TO_TOK(DUK_STRIDX_RETURN) != DUK_TOK_RETURN) +#error mismatch in token defines +#endif +#if (DUK_STRIDX_TO_TOK(DUK_STRIDX_SWITCH) != DUK_TOK_SWITCH) +#error mismatch in token defines +#endif +#if (DUK_STRIDX_TO_TOK(DUK_STRIDX_THIS) != DUK_TOK_THIS) +#error mismatch in token defines +#endif +#if (DUK_STRIDX_TO_TOK(DUK_STRIDX_THROW) != DUK_TOK_THROW) +#error mismatch in token defines +#endif +#if (DUK_STRIDX_TO_TOK(DUK_STRIDX_TRY) != DUK_TOK_TRY) +#error mismatch in token defines +#endif +#if (DUK_STRIDX_TO_TOK(DUK_STRIDX_TYPEOF) != DUK_TOK_TYPEOF) +#error mismatch in token defines +#endif +#if (DUK_STRIDX_TO_TOK(DUK_STRIDX_VAR) != DUK_TOK_VAR) +#error mismatch in token defines +#endif +#if (DUK_STRIDX_TO_TOK(DUK_STRIDX_VOID) != DUK_TOK_VOID) +#error mismatch in token defines +#endif +#if (DUK_STRIDX_TO_TOK(DUK_STRIDX_WHILE) != DUK_TOK_WHILE) +#error mismatch in token defines +#endif +#if (DUK_STRIDX_TO_TOK(DUK_STRIDX_WITH) != DUK_TOK_WITH) +#error mismatch in token defines +#endif +#if (DUK_STRIDX_TO_TOK(DUK_STRIDX_CLASS) != DUK_TOK_CLASS) +#error mismatch in token defines +#endif +#if (DUK_STRIDX_TO_TOK(DUK_STRIDX_CONST) != DUK_TOK_CONST) +#error mismatch in token defines +#endif +#if (DUK_STRIDX_TO_TOK(DUK_STRIDX_ENUM) != DUK_TOK_ENUM) +#error mismatch in token defines +#endif +#if (DUK_STRIDX_TO_TOK(DUK_STRIDX_EXPORT) != DUK_TOK_EXPORT) +#error mismatch in token defines +#endif +#if (DUK_STRIDX_TO_TOK(DUK_STRIDX_EXTENDS) != DUK_TOK_EXTENDS) +#error mismatch in token defines +#endif +#if (DUK_STRIDX_TO_TOK(DUK_STRIDX_IMPORT) != DUK_TOK_IMPORT) +#error mismatch in token defines +#endif +#if (DUK_STRIDX_TO_TOK(DUK_STRIDX_SUPER) != DUK_TOK_SUPER) +#error mismatch in token defines +#endif +#if (DUK_STRIDX_TO_TOK(DUK_STRIDX_LC_NULL) != DUK_TOK_NULL) +#error mismatch in token defines +#endif +#if (DUK_STRIDX_TO_TOK(DUK_STRIDX_TRUE) != DUK_TOK_TRUE) +#error mismatch in token defines +#endif +#if (DUK_STRIDX_TO_TOK(DUK_STRIDX_FALSE) != DUK_TOK_FALSE) +#error mismatch in token defines +#endif +#if (DUK_STRIDX_TO_TOK(DUK_STRIDX_IMPLEMENTS) != DUK_TOK_IMPLEMENTS) +#error mismatch in token defines +#endif +#if (DUK_STRIDX_TO_TOK(DUK_STRIDX_INTERFACE) != DUK_TOK_INTERFACE) +#error mismatch in token defines +#endif +#if (DUK_STRIDX_TO_TOK(DUK_STRIDX_LET) != DUK_TOK_LET) +#error mismatch in token defines +#endif +#if (DUK_STRIDX_TO_TOK(DUK_STRIDX_PACKAGE) != DUK_TOK_PACKAGE) +#error mismatch in token defines +#endif +#if (DUK_STRIDX_TO_TOK(DUK_STRIDX_PRIVATE) != DUK_TOK_PRIVATE) +#error mismatch in token defines +#endif +#if (DUK_STRIDX_TO_TOK(DUK_STRIDX_PROTECTED) != DUK_TOK_PROTECTED) +#error mismatch in token defines +#endif +#if (DUK_STRIDX_TO_TOK(DUK_STRIDX_PUBLIC) != DUK_TOK_PUBLIC) +#error mismatch in token defines +#endif +#if (DUK_STRIDX_TO_TOK(DUK_STRIDX_STATIC) != DUK_TOK_STATIC) +#error mismatch in token defines +#endif +#if (DUK_STRIDX_TO_TOK(DUK_STRIDX_YIELD) != DUK_TOK_YIELD) +#error mismatch in token defines +#endif + +/* Regexp tokens */ +#define DUK_RETOK_EOF 0 +#define DUK_RETOK_DISJUNCTION 1 +#define DUK_RETOK_QUANTIFIER 2 +#define DUK_RETOK_ASSERT_START 3 +#define DUK_RETOK_ASSERT_END 4 +#define DUK_RETOK_ASSERT_WORD_BOUNDARY 5 +#define DUK_RETOK_ASSERT_NOT_WORD_BOUNDARY 6 +#define DUK_RETOK_ASSERT_START_POS_LOOKAHEAD 7 +#define DUK_RETOK_ASSERT_START_NEG_LOOKAHEAD 8 +#define DUK_RETOK_ATOM_PERIOD 9 +#define DUK_RETOK_ATOM_CHAR 10 +#define DUK_RETOK_ATOM_DIGIT 11 +#define DUK_RETOK_ATOM_NOT_DIGIT 12 +#define DUK_RETOK_ATOM_WHITE 13 +#define DUK_RETOK_ATOM_NOT_WHITE 14 +#define DUK_RETOK_ATOM_WORD_CHAR 15 +#define DUK_RETOK_ATOM_NOT_WORD_CHAR 16 +#define DUK_RETOK_ATOM_BACKREFERENCE 17 +#define DUK_RETOK_ATOM_START_CAPTURE_GROUP 18 +#define DUK_RETOK_ATOM_START_NONCAPTURE_GROUP 19 +#define DUK_RETOK_ATOM_START_CHARCLASS 20 +#define DUK_RETOK_ATOM_START_CHARCLASS_INVERTED 21 +#define DUK_RETOK_ATOM_END_GROUP 22 + +/* Constants for duk_lexer_ctx.buf. */ +#define DUK_LEXER_TEMP_BUF_LIMIT 256 + +/* A token value. Can be memcpy()'d, but note that slot1/slot2 values are on the valstack. + * Some fields (like num, str1, str2) are only valid for specific token types and may have + * stale values otherwise. + */ +struct duk_token { + duk_small_int_t t; /* token type (with reserved word identification) */ + duk_small_int_t t_nores; /* token type (with reserved words as DUK_TOK_IDENTIFER) */ + duk_double_t num; /* numeric value of token */ + duk_hstring *str1; /* string 1 of token (borrowed, stored to ctx->slot1_idx) */ + duk_hstring *str2; /* string 2 of token (borrowed, stored to ctx->slot2_idx) */ + duk_size_t start_offset; /* start byte offset of token in lexer input */ + duk_int_t start_line; /* start line of token (first char) */ + duk_int_t num_escapes; /* number of escapes and line continuations (for directive prologue) */ + duk_bool_t lineterm; /* token was preceded by a lineterm */ + duk_bool_t allow_auto_semi; /* token allows automatic semicolon insertion (eof or preceded by newline) */ +}; + +#define DUK_RE_QUANTIFIER_INFINITE ((duk_uint32_t) 0xffffffffUL) + +/* A regexp token value. */ +struct duk_re_token { + duk_small_int_t t; /* token type */ + duk_small_int_t greedy; + duk_uint_fast32_t num; /* numeric value (character, count) */ + duk_uint_fast32_t qmin; + duk_uint_fast32_t qmax; +}; + +/* A structure for 'snapshotting' a point for rewinding */ +struct duk_lexer_point { + duk_size_t offset; + duk_int_t line; +}; + +/* Lexer codepoint with additional info like offset/line number */ +struct duk_lexer_codepoint { + duk_codepoint_t codepoint; + duk_size_t offset; + duk_int_t line; +}; + +/* Lexer context. Same context is used for Ecmascript and Regexp parsing. */ +struct duk_lexer_ctx { +#if defined(DUK_USE_LEXER_SLIDING_WINDOW) + duk_lexer_codepoint *window; /* unicode code points, window[0] is always next, points to 'buffer' */ + duk_lexer_codepoint buffer[DUK_LEXER_BUFFER_SIZE]; +#else + duk_lexer_codepoint window[DUK_LEXER_WINDOW_SIZE]; /* unicode code points, window[0] is always next */ +#endif + + duk_hthread *thr; /* thread; minimizes argument passing */ + + const duk_uint8_t *input; /* input string (may be a user pointer) */ + duk_size_t input_length; /* input byte length */ + duk_size_t input_offset; /* input offset for window leading edge (not window[0]) */ + duk_int_t input_line; /* input linenumber at input_offset (not window[0]), init to 1 */ + + duk_idx_t slot1_idx; /* valstack slot for 1st token value */ + duk_idx_t slot2_idx; /* valstack slot for 2nd token value */ + duk_idx_t buf_idx; /* valstack slot for temp buffer */ + duk_hbuffer_dynamic *buf; /* temp accumulation buffer */ + duk_bufwriter_ctx bw; /* bufwriter for temp accumulation */ + + duk_int_t token_count; /* number of tokens parsed */ + duk_int_t token_limit; /* maximum token count before error (sanity backstop) */ +}; + +/* + * Prototypes + */ + +DUK_INTERNAL_DECL void duk_lexer_initctx(duk_lexer_ctx *lex_ctx); + +DUK_INTERNAL_DECL void duk_lexer_setpoint(duk_lexer_ctx *lex_ctx, duk_lexer_point *pt); + +DUK_INTERNAL_DECL +void duk_lexer_parse_js_input_element(duk_lexer_ctx *lex_ctx, + duk_token *out_token, + duk_bool_t strict_mode, + duk_bool_t regexp_mode); +#ifdef DUK_USE_REGEXP_SUPPORT +DUK_INTERNAL_DECL void duk_lexer_parse_re_token(duk_lexer_ctx *lex_ctx, duk_re_token *out_token); +DUK_INTERNAL_DECL void duk_lexer_parse_re_ranges(duk_lexer_ctx *lex_ctx, duk_re_range_callback gen_range, void *userdata); +#endif /* DUK_USE_REGEXP_SUPPORT */ + +#endif /* DUK_LEXER_H_INCLUDED */ +#line 1 "duk_js_compiler.h" +/* + * Ecmascript compiler. + */ + +#ifndef DUK_JS_COMPILER_H_INCLUDED +#define DUK_JS_COMPILER_H_INCLUDED + +/* ecmascript compiler limits */ +#define DUK_COMPILER_TOKEN_LIMIT 100000000L /* 1e8: protects against deeply nested inner functions */ + +/* maximum loopcount for peephole optimization */ +#define DUK_COMPILER_PEEPHOLE_MAXITER 3 + +/* maximum bytecode length in instructions */ +#define DUK_COMPILER_MAX_BYTECODE_LENGTH (256L * 1024L * 1024L) /* 1 GB */ + +/* + * Compiler intermediate values + * + * Intermediate values describe either plain values (e.g. strings or + * numbers) or binary operations which have not yet been coerced into + * either a left-hand-side or right-hand-side role (e.g. object property). + */ + +#define DUK_IVAL_NONE 0 /* no value */ +#define DUK_IVAL_PLAIN 1 /* register, constant, or value */ +#define DUK_IVAL_ARITH 2 /* binary arithmetic; DUK_OP_ADD, DUK_OP_EQ, other binary ops */ +#define DUK_IVAL_ARITH_EXTRAOP 3 /* binary arithmetic using extraops; DUK_EXTRAOP_INSTOF etc */ +#define DUK_IVAL_PROP 4 /* property access */ +#define DUK_IVAL_VAR 5 /* variable access */ + +#define DUK_ISPEC_NONE 0 /* no value */ +#define DUK_ISPEC_VALUE 1 /* value resides in 'valstack_idx' */ +#define DUK_ISPEC_REGCONST 2 /* value resides in a register or constant */ + +/* bit mask which indicates that a regconst is a constant instead of a register */ +#define DUK_JS_CONST_MARKER 0x80000000UL + +/* type to represent a reg/const reference during compilation */ +typedef duk_uint32_t duk_regconst_t; + +/* type to represent a straight register reference, with <0 indicating none */ +typedef duk_int32_t duk_reg_t; + +typedef struct { + duk_small_uint_t t; /* DUK_ISPEC_XXX */ + duk_regconst_t regconst; + duk_idx_t valstack_idx; /* always set; points to a reserved valstack slot */ +} duk_ispec; + +typedef struct { + /* + * PLAIN: x1 + * ARITH: x1 x2 + * PROP: x1.x2 + * VAR: x1 (name) + */ + + /* XXX: can be optimized for smaller footprint esp. on 32-bit environments */ + duk_small_uint_t t; /* DUK_IVAL_XXX */ + duk_small_uint_t op; /* bytecode opcode (or extraop) for binary ops */ + duk_ispec x1; + duk_ispec x2; +} duk_ivalue; + +/* + * Bytecode instruction representation during compilation + * + * Contains the actual instruction and (optionally) debug info. + */ + +struct duk_compiler_instr { + duk_instr_t ins; +#if defined(DUK_USE_PC2LINE) + duk_uint32_t line; +#endif +}; + +/* + * Compiler state + */ + +#define DUK_LABEL_FLAG_ALLOW_BREAK (1 << 0) +#define DUK_LABEL_FLAG_ALLOW_CONTINUE (1 << 1) + +#define DUK_DECL_TYPE_VAR 0 +#define DUK_DECL_TYPE_FUNC 1 + +/* XXX: optimize to 16 bytes */ +typedef struct { + duk_small_uint_t flags; + duk_int_t label_id; /* numeric label_id (-1 reserved as marker) */ + duk_hstring *h_label; /* borrowed label name */ + duk_int_t catch_depth; /* catch depth at point of definition */ + duk_int_t pc_label; /* pc of label statement: + * pc+1: break jump site + * pc+2: continue jump site + */ + + /* Fast jumps (which avoid longjmp) jump directly to the jump sites + * which are always known even while the iteration/switch statement + * is still being parsed. A final peephole pass "straightens out" + * the jumps. + */ +} duk_labelinfo; + +/* Compiling state of one function, eventually converted to duk_hcompiledfunction */ +struct duk_compiler_func { + /* These pointers are at the start of the struct so that they pack + * nicely. Mixing pointers and integer values is bad on some + * platforms (e.g. if int is 32 bits and pointers are 64 bits). + */ + + duk_bufwriter_ctx bw_code; /* bufwriter for code */ + + duk_hstring *h_name; /* function name (borrowed reference), ends up in _name */ + /* h_code: held in bw_code */ + duk_hobject *h_consts; /* array */ + duk_hobject *h_funcs; /* array of function templates: [func1, offset1, line1, func2, offset2, line2] + * offset/line points to closing brace to allow skipping on pass 2 + */ + duk_hobject *h_decls; /* array of declarations: [ name1, val1, name2, val2, ... ] + * valN = (typeN) | (fnum << 8), where fnum is inner func number (0 for vars) + * record function and variable declarations in pass 1 + */ + duk_hobject *h_labelnames; /* array of active label names */ + duk_hbuffer_dynamic *h_labelinfos; /* C array of duk_labelinfo */ + duk_hobject *h_argnames; /* array of formal argument names (-> _Formals) */ + duk_hobject *h_varmap; /* variable map for pass 2 (identifier -> register number or null (unmapped)) */ + + /* value stack indices for tracking objects */ + /* code_idx: not needed */ + duk_idx_t consts_idx; + duk_idx_t funcs_idx; + duk_idx_t decls_idx; + duk_idx_t labelnames_idx; + duk_idx_t labelinfos_idx; + duk_idx_t argnames_idx; + duk_idx_t varmap_idx; + + /* temp reg handling */ + duk_reg_t temp_first; /* first register that is a temporary (below: variables) */ + duk_reg_t temp_next; /* next temporary register to allocate */ + duk_reg_t temp_max; /* highest value of temp_reg (temp_max - 1 is highest used reg) */ + + /* shuffle registers if large number of regs/consts */ + duk_reg_t shuffle1; + duk_reg_t shuffle2; + duk_reg_t shuffle3; + + /* stats for current expression being parsed */ + duk_int_t nud_count; + duk_int_t led_count; + duk_int_t paren_level; /* parenthesis count, 0 = top level */ + duk_bool_t expr_lhs; /* expression is left-hand-side compatible */ + duk_bool_t allow_in; /* current paren level allows 'in' token */ + + /* misc */ + duk_int_t stmt_next; /* statement id allocation (running counter) */ + duk_int_t label_next; /* label id allocation (running counter) */ + duk_int_t catch_depth; /* catch stack depth */ + duk_int_t with_depth; /* with stack depth (affects identifier lookups) */ + duk_int_t fnum_next; /* inner function numbering */ + duk_int_t num_formals; /* number of formal arguments */ + duk_reg_t reg_stmt_value; /* register for writing value of 'non-empty' statements (global or eval code), -1 is marker */ +#if defined(DUK_USE_DEBUGGER_SUPPORT) + duk_int_t min_line; /* XXX: typing (duk_hcompiledfunction has duk_uint32_t) */ + duk_int_t max_line; +#endif + + /* status booleans */ + duk_bool_t is_function; /* is an actual function (not global/eval code) */ + duk_bool_t is_eval; /* is eval code */ + duk_bool_t is_global; /* is global code */ + duk_bool_t is_setget; /* is a setter/getter */ + duk_bool_t is_decl; /* is a function declaration (as opposed to function expression) */ + duk_bool_t is_strict; /* function is strict */ + duk_bool_t is_notail; /* function must not be tail called */ + duk_bool_t in_directive_prologue; /* parsing in "directive prologue", recognize directives */ + duk_bool_t in_scanning; /* parsing in "scanning" phase (first pass) */ + duk_bool_t may_direct_eval; /* function may call direct eval */ + duk_bool_t id_access_arguments; /* function refers to 'arguments' identifier */ + duk_bool_t id_access_slow; /* function makes one or more slow path accesses */ + duk_bool_t is_arguments_shadowed; /* argument/function declaration shadows 'arguments' */ + duk_bool_t needs_shuffle; /* function needs shuffle registers */ + duk_bool_t reject_regexp_in_adv; /* reject RegExp literal on next advance() call; needed for handling IdentifierName productions */ +}; + +struct duk_compiler_ctx { + duk_hthread *thr; + + /* filename being compiled (ends up in functions' '_filename' property) */ + duk_hstring *h_filename; /* borrowed reference */ + + /* lexing (tokenization) state (contains two valstack slot indices) */ + duk_lexer_ctx lex; + + /* current and previous token for parsing */ + duk_token prev_token; + duk_token curr_token; + duk_idx_t tok11_idx; /* curr_token slot1 (matches 'lex' slot1_idx) */ + duk_idx_t tok12_idx; /* curr_token slot2 (matches 'lex' slot2_idx) */ + duk_idx_t tok21_idx; /* prev_token slot1 */ + duk_idx_t tok22_idx; /* prev_token slot2 */ + + /* recursion limit */ + duk_int_t recursion_depth; + duk_int_t recursion_limit; + + /* code emission temporary */ + duk_int_t emit_jumpslot_pc; + + /* current function being compiled (embedded instead of pointer for more compact access) */ + duk_compiler_func curr_func; +}; + +/* + * Prototypes + */ + +#define DUK_JS_COMPILE_FLAG_EVAL (1 << 0) /* source is eval code (not global) */ +#define DUK_JS_COMPILE_FLAG_STRICT (1 << 1) /* strict outer context */ +#define DUK_JS_COMPILE_FLAG_FUNCEXPR (1 << 2) /* source is a function expression (used for Function constructor) */ + +DUK_INTERNAL_DECL void duk_js_compile(duk_hthread *thr, const duk_uint8_t *src_buffer, duk_size_t src_length, duk_small_uint_t flags); + +#endif /* DUK_JS_COMPILER_H_INCLUDED */ +#line 1 "duk_regexp.h" +/* + * Regular expression structs, constants, and bytecode defines. + */ + +#ifndef DUK_REGEXP_H_INCLUDED +#define DUK_REGEXP_H_INCLUDED + +/* maximum bytecode copies for {n,m} quantifiers */ +#define DUK_RE_MAX_ATOM_COPIES 1000 + +/* regexp compilation limits */ +#define DUK_RE_COMPILE_TOKEN_LIMIT 100000000L /* 1e8 */ + +/* regexp execution limits */ +#define DUK_RE_EXECUTE_STEPS_LIMIT 1000000000L /* 1e9 */ + +/* regexp opcodes */ +#define DUK_REOP_MATCH 1 +#define DUK_REOP_CHAR 2 +#define DUK_REOP_PERIOD 3 +#define DUK_REOP_RANGES 4 +#define DUK_REOP_INVRANGES 5 +#define DUK_REOP_JUMP 6 +#define DUK_REOP_SPLIT1 7 +#define DUK_REOP_SPLIT2 8 +#define DUK_REOP_SQMINIMAL 9 +#define DUK_REOP_SQGREEDY 10 +#define DUK_REOP_SAVE 11 +#define DUK_REOP_WIPERANGE 12 +#define DUK_REOP_LOOKPOS 13 +#define DUK_REOP_LOOKNEG 14 +#define DUK_REOP_BACKREFERENCE 15 +#define DUK_REOP_ASSERT_START 16 +#define DUK_REOP_ASSERT_END 17 +#define DUK_REOP_ASSERT_WORD_BOUNDARY 18 +#define DUK_REOP_ASSERT_NOT_WORD_BOUNDARY 19 + +/* flags */ +#define DUK_RE_FLAG_GLOBAL (1 << 0) +#define DUK_RE_FLAG_IGNORE_CASE (1 << 1) +#define DUK_RE_FLAG_MULTILINE (1 << 2) + +struct duk_re_matcher_ctx { + duk_hthread *thr; + + duk_uint32_t re_flags; + const duk_uint8_t *input; + const duk_uint8_t *input_end; + const duk_uint8_t *bytecode; + const duk_uint8_t *bytecode_end; + const duk_uint8_t **saved; /* allocated from valstack (fixed buffer) */ + duk_uint32_t nsaved; + duk_uint32_t recursion_depth; + duk_uint32_t recursion_limit; + duk_uint32_t steps_count; + duk_uint32_t steps_limit; +}; + +struct duk_re_compiler_ctx { + duk_hthread *thr; + + duk_uint32_t re_flags; + duk_lexer_ctx lex; + duk_re_token curr_token; + duk_bufwriter_ctx bw; + duk_uint32_t captures; /* highest capture number emitted so far (used as: ++captures) */ + duk_uint32_t highest_backref; + duk_uint32_t recursion_depth; + duk_uint32_t recursion_limit; + duk_uint32_t nranges; /* internal temporary value, used for char classes */ +}; + +/* + * Prototypes + */ + +DUK_INTERNAL_DECL void duk_regexp_compile(duk_hthread *thr); +DUK_INTERNAL_DECL void duk_regexp_create_instance(duk_hthread *thr); +DUK_INTERNAL_DECL void duk_regexp_match(duk_hthread *thr); +DUK_INTERNAL_DECL void duk_regexp_match_force_global(duk_hthread *thr); /* hacky helper for String.prototype.split() */ + +#endif /* DUK_REGEXP_H_INCLUDED */ +#line 1 "duk_heaphdr.h" +/* + * Heap header definition and assorted macros, including ref counting. + * Access all fields through the accessor macros. + */ + +#ifndef DUK_HEAPHDR_H_INCLUDED +#define DUK_HEAPHDR_H_INCLUDED + +/* + * Common heap header + * + * All heap objects share the same flags and refcount fields. Objects other + * than strings also need to have a single or double linked list pointers + * for insertion into the "heap allocated" list. Strings are held in the + * heap-wide string table so they don't need link pointers. + * + * Technically, 'h_refcount' must be wide enough to guarantee that it cannot + * wrap (otherwise objects might be freed incorrectly after wrapping). This + * means essentially that the refcount field must be as wide as data pointers. + * On 64-bit platforms this means that the refcount needs to be 64 bits even + * if an 'int' is 32 bits. This is a bit unfortunate, and compromising on + * this might be reasonable in the future. + * + * Heap header size on 32-bit platforms: 8 bytes without reference counting, + * 16 bytes with reference counting. + */ + +struct duk_heaphdr { + duk_uint32_t h_flags; + +#if defined(DUK_USE_REFERENCE_COUNTING) +#if defined(DUK_USE_REFCOUNT16) + duk_uint16_t h_refcount16; +#else + duk_size_t h_refcount; +#endif +#endif + +#if defined(DUK_USE_HEAPPTR16) + duk_uint16_t h_next16; +#else + duk_heaphdr *h_next; +#endif + +#if defined(DUK_USE_DOUBLE_LINKED_HEAP) + /* refcounting requires direct heap frees, which in turn requires a dual linked heap */ +#if defined(DUK_USE_HEAPPTR16) + duk_uint16_t h_prev16; +#else + duk_heaphdr *h_prev; +#endif +#endif + + /* When DUK_USE_HEAPPTR16 (and DUK_USE_REFCOUNT16) is in use, the + * struct won't align nicely to 4 bytes. This 16-bit extra field + * is added to make the alignment clean; the field can be used by + * heap objects when 16-bit packing is used. This field is now + * conditional to DUK_USE_HEAPPTR16 only, but it is intended to be + * used with DUK_USE_REFCOUNT16 and DUK_USE_DOUBLE_LINKED_HEAP; + * this only matter to low memory environments anyway. + */ +#if defined(DUK_USE_HEAPPTR16) + duk_uint16_t h_extra16; +#endif +}; + +struct duk_heaphdr_string { + /* 16 bits would be enough for shared heaphdr flags and duk_hstring + * flags. The initial parts of duk_heaphdr_string and duk_heaphdr + * must match so changing the flags field size here would be quite + * awkward. However, to minimize struct size, we can pack at least + * 16 bits of duk_hstring data into the flags field. + */ + duk_uint32_t h_flags; + +#if defined(DUK_USE_REFERENCE_COUNTING) +#if defined(DUK_USE_REFCOUNT16) + duk_uint16_t h_refcount16; + duk_uint16_t h_strextra16; /* round out to 8 bytes */ +#else + duk_size_t h_refcount; +#endif +#endif +}; + +#define DUK_HEAPHDR_FLAGS_TYPE_MASK 0x00000003UL +#define DUK_HEAPHDR_FLAGS_FLAG_MASK (~DUK_HEAPHDR_FLAGS_TYPE_MASK) + + /* 2 bits for heap type */ +#define DUK_HEAPHDR_FLAGS_HEAP_START 2 /* 5 heap flags */ +#define DUK_HEAPHDR_FLAGS_USER_START 7 /* 25 user flags */ + +#define DUK_HEAPHDR_HEAP_FLAG_NUMBER(n) (DUK_HEAPHDR_FLAGS_HEAP_START + (n)) +#define DUK_HEAPHDR_USER_FLAG_NUMBER(n) (DUK_HEAPHDR_FLAGS_USER_START + (n)) +#define DUK_HEAPHDR_HEAP_FLAG(n) (1UL << (DUK_HEAPHDR_FLAGS_HEAP_START + (n))) +#define DUK_HEAPHDR_USER_FLAG(n) (1UL << (DUK_HEAPHDR_FLAGS_USER_START + (n))) + +#define DUK_HEAPHDR_FLAG_REACHABLE DUK_HEAPHDR_HEAP_FLAG(0) /* mark-and-sweep: reachable */ +#define DUK_HEAPHDR_FLAG_TEMPROOT DUK_HEAPHDR_HEAP_FLAG(1) /* mark-and-sweep: children not processed */ +#define DUK_HEAPHDR_FLAG_FINALIZABLE DUK_HEAPHDR_HEAP_FLAG(2) /* mark-and-sweep: finalizable (on current pass) */ +#define DUK_HEAPHDR_FLAG_FINALIZED DUK_HEAPHDR_HEAP_FLAG(3) /* mark-and-sweep: finalized (on previous pass) */ +#define DUK_HEAPHDR_FLAG_READONLY DUK_HEAPHDR_HEAP_FLAG(4) /* read-only object, in code section */ + +#define DUK_HTYPE_MIN 1 +#define DUK_HTYPE_STRING 1 +#define DUK_HTYPE_OBJECT 2 +#define DUK_HTYPE_BUFFER 3 +#define DUK_HTYPE_MAX 3 + +#if defined(DUK_USE_HEAPPTR16) +#define DUK_HEAPHDR_GET_NEXT(heap,h) \ + ((duk_heaphdr *) DUK_USE_HEAPPTR_DEC16((heap)->heap_udata, (h)->h_next16)) +#define DUK_HEAPHDR_SET_NEXT(heap,h,val) do { \ + (h)->h_next16 = DUK_USE_HEAPPTR_ENC16((heap)->heap_udata, (void *) val); \ + } while (0) +#else +#define DUK_HEAPHDR_GET_NEXT(heap,h) ((h)->h_next) +#define DUK_HEAPHDR_SET_NEXT(heap,h,val) do { \ + (h)->h_next = (val); \ + } while (0) +#endif + +#if defined(DUK_USE_DOUBLE_LINKED_HEAP) +#if defined(DUK_USE_HEAPPTR16) +#define DUK_HEAPHDR_GET_PREV(heap,h) \ + ((duk_heaphdr *) DUK_USE_HEAPPTR_DEC16((heap)->heap_udata, (h)->h_prev16)) +#define DUK_HEAPHDR_SET_PREV(heap,h,val) do { \ + (h)->h_prev16 = DUK_USE_HEAPPTR_ENC16((heap)->heap_udata, (void *) (val)); \ + } while (0) +#else +#define DUK_HEAPHDR_GET_PREV(heap,h) ((h)->h_prev) +#define DUK_HEAPHDR_SET_PREV(heap,h,val) do { \ + (h)->h_prev = (val); \ + } while (0) +#endif +#endif + +#if defined(DUK_USE_REFERENCE_COUNTING) +#if defined(DUK_USE_REFCOUNT16) +#define DUK_HEAPHDR_GET_REFCOUNT(h) ((h)->h_refcount16) +#define DUK_HEAPHDR_SET_REFCOUNT(h,val) do { \ + (h)->h_refcount16 = (val); \ + } while (0) +#define DUK_HEAPHDR_PREINC_REFCOUNT(h) (++(h)->h_refcount16) /* result: updated refcount */ +#define DUK_HEAPHDR_PREDEC_REFCOUNT(h) (--(h)->h_refcount16) /* result: updated refcount */ +#else +#define DUK_HEAPHDR_GET_REFCOUNT(h) ((h)->h_refcount) +#define DUK_HEAPHDR_SET_REFCOUNT(h,val) do { \ + (h)->h_refcount = (val); \ + } while (0) +#define DUK_HEAPHDR_PREINC_REFCOUNT(h) (++(h)->h_refcount) /* result: updated refcount */ +#define DUK_HEAPHDR_PREDEC_REFCOUNT(h) (--(h)->h_refcount) /* result: updated refcount */ +#endif +#else +/* refcount macros not defined without refcounting, caller must #ifdef now */ +#endif /* DUK_USE_REFERENCE_COUNTING */ + +/* + * Note: type is treated as a field separate from flags, so some masking is + * involved in the macros below. + */ + +#define DUK_HEAPHDR_GET_FLAGS_RAW(h) ((h)->h_flags) + +#define DUK_HEAPHDR_GET_FLAGS(h) ((h)->h_flags & DUK_HEAPHDR_FLAGS_FLAG_MASK) +#define DUK_HEAPHDR_SET_FLAGS(h,val) do { \ + (h)->h_flags = ((h)->h_flags & ~(DUK_HEAPHDR_FLAGS_FLAG_MASK)) | (val); \ + } while (0) + +#define DUK_HEAPHDR_GET_TYPE(h) ((h)->h_flags & DUK_HEAPHDR_FLAGS_TYPE_MASK) +#define DUK_HEAPHDR_SET_TYPE(h,val) do { \ + (h)->h_flags = ((h)->h_flags & ~(DUK_HEAPHDR_FLAGS_TYPE_MASK)) | (val); \ + } while (0) + +#define DUK_HEAPHDR_HTYPE_VALID(h) ( \ + DUK_HEAPHDR_GET_TYPE((h)) >= DUK_HTYPE_MIN && \ + DUK_HEAPHDR_GET_TYPE((h)) <= DUK_HTYPE_MAX \ + ) + +#define DUK_HEAPHDR_SET_TYPE_AND_FLAGS(h,tval,fval) do { \ + (h)->h_flags = ((tval) & DUK_HEAPHDR_FLAGS_TYPE_MASK) | \ + ((fval) & DUK_HEAPHDR_FLAGS_FLAG_MASK); \ + } while (0) + +#define DUK_HEAPHDR_SET_FLAG_BITS(h,bits) do { \ + DUK_ASSERT(((bits) & ~(DUK_HEAPHDR_FLAGS_FLAG_MASK)) == 0); \ + (h)->h_flags |= (bits); \ + } while (0) + +#define DUK_HEAPHDR_CLEAR_FLAG_BITS(h,bits) do { \ + DUK_ASSERT(((bits) & ~(DUK_HEAPHDR_FLAGS_FLAG_MASK)) == 0); \ + (h)->h_flags &= ~((bits)); \ + } while (0) + +#define DUK_HEAPHDR_CHECK_FLAG_BITS(h,bits) (((h)->h_flags & (bits)) != 0) + +#define DUK_HEAPHDR_SET_REACHABLE(h) DUK_HEAPHDR_SET_FLAG_BITS((h),DUK_HEAPHDR_FLAG_REACHABLE) +#define DUK_HEAPHDR_CLEAR_REACHABLE(h) DUK_HEAPHDR_CLEAR_FLAG_BITS((h),DUK_HEAPHDR_FLAG_REACHABLE) +#define DUK_HEAPHDR_HAS_REACHABLE(h) DUK_HEAPHDR_CHECK_FLAG_BITS((h),DUK_HEAPHDR_FLAG_REACHABLE) + +#define DUK_HEAPHDR_SET_TEMPROOT(h) DUK_HEAPHDR_SET_FLAG_BITS((h),DUK_HEAPHDR_FLAG_TEMPROOT) +#define DUK_HEAPHDR_CLEAR_TEMPROOT(h) DUK_HEAPHDR_CLEAR_FLAG_BITS((h),DUK_HEAPHDR_FLAG_TEMPROOT) +#define DUK_HEAPHDR_HAS_TEMPROOT(h) DUK_HEAPHDR_CHECK_FLAG_BITS((h),DUK_HEAPHDR_FLAG_TEMPROOT) + +#define DUK_HEAPHDR_SET_FINALIZABLE(h) DUK_HEAPHDR_SET_FLAG_BITS((h),DUK_HEAPHDR_FLAG_FINALIZABLE) +#define DUK_HEAPHDR_CLEAR_FINALIZABLE(h) DUK_HEAPHDR_CLEAR_FLAG_BITS((h),DUK_HEAPHDR_FLAG_FINALIZABLE) +#define DUK_HEAPHDR_HAS_FINALIZABLE(h) DUK_HEAPHDR_CHECK_FLAG_BITS((h),DUK_HEAPHDR_FLAG_FINALIZABLE) + +#define DUK_HEAPHDR_SET_FINALIZED(h) DUK_HEAPHDR_SET_FLAG_BITS((h),DUK_HEAPHDR_FLAG_FINALIZED) +#define DUK_HEAPHDR_CLEAR_FINALIZED(h) DUK_HEAPHDR_CLEAR_FLAG_BITS((h),DUK_HEAPHDR_FLAG_FINALIZED) +#define DUK_HEAPHDR_HAS_FINALIZED(h) DUK_HEAPHDR_CHECK_FLAG_BITS((h),DUK_HEAPHDR_FLAG_FINALIZED) + +#define DUK_HEAPHDR_SET_READONLY(h) DUK_HEAPHDR_SET_FLAG_BITS((h),DUK_HEAPHDR_FLAG_READONLY) +#define DUK_HEAPHDR_CLEAR_READONLY(h) DUK_HEAPHDR_CLEAR_FLAG_BITS((h),DUK_HEAPHDR_FLAG_READONLY) +#define DUK_HEAPHDR_HAS_READONLY(h) DUK_HEAPHDR_CHECK_FLAG_BITS((h),DUK_HEAPHDR_FLAG_READONLY) + +/* get or set a range of flags; m=first bit number, n=number of bits */ +#define DUK_HEAPHDR_GET_FLAG_RANGE(h,m,n) (((h)->h_flags >> (m)) & ((1UL << (n)) - 1UL)) + +#define DUK_HEAPHDR_SET_FLAG_RANGE(h,m,n,v) do { \ + (h)->h_flags = \ + ((h)->h_flags & (~(((1 << (n)) - 1) << (m)))) \ + | ((v) << (m)); \ + } while (0) + +/* init pointer fields to null */ +#if defined(DUK_USE_DOUBLE_LINKED_HEAP) +#define DUK_HEAPHDR_INIT_NULLS(h) do { \ + DUK_HEAPHDR_SET_NEXT((h), (void *) NULL); \ + DUK_HEAPHDR_SET_PREV((h), (void *) NULL); \ + } while (0) +#else +#define DUK_HEAPHDR_INIT_NULLS(h) do { \ + DUK_HEAPHDR_SET_NEXT((h), (void *) NULL); \ + } while (0) +#endif + +#define DUK_HEAPHDR_STRING_INIT_NULLS(h) /* currently nop */ + +/* + * Assert helpers + */ + +/* Check that prev/next links are consistent: if e.g. h->prev is != NULL, + * h->prev->next should point back to h. + */ +#if defined(DUK_USE_DOUBLE_LINKED_HEAP) && defined(DUK_USE_ASSERTIONS) +#define DUK_ASSERT_HEAPHDR_LINKS(heap,h) do { \ + if ((h) != NULL) { \ + duk_heaphdr *h__prev, *h__next; \ + h__prev = DUK_HEAPHDR_GET_PREV((heap), (h)); \ + h__next = DUK_HEAPHDR_GET_NEXT((heap), (h)); \ + DUK_ASSERT(h__prev == NULL || (DUK_HEAPHDR_GET_NEXT((heap), h__prev) == (h))); \ + DUK_ASSERT(h__next == NULL || (DUK_HEAPHDR_GET_PREV((heap), h__next) == (h))); \ + } \ + } while (0) +#else +#define DUK_ASSERT_HEAPHDR_LINKS(heap,h) do {} while (0) +#endif + +/* + * Reference counting helper macros. The macros take a thread argument + * and must thus always be executed in a specific thread context. The + * thread argument is needed for features like finalization. Currently + * it is not required for INCREF, but it is included just in case. + * + * Note that 'raw' macros such as DUK_HEAPHDR_GET_REFCOUNT() are not + * defined without DUK_USE_REFERENCE_COUNTING, so caller must #ifdef + * around them. + */ + +#if defined(DUK_USE_REFERENCE_COUNTING) + +#if defined(DUK_USE_ROM_OBJECTS) +/* With ROM objects "needs refcount update" is true when the value is + * heap allocated and is not a ROM object. + */ +/* XXX: double evaluation for 'tv' argument. */ +#define DUK_TVAL_NEEDS_REFCOUNT_UPDATE(tv) \ + (DUK_TVAL_IS_HEAP_ALLOCATED((tv)) && !DUK_HEAPHDR_HAS_READONLY(DUK_TVAL_GET_HEAPHDR((tv)))) +#define DUK_HEAPHDR_NEEDS_REFCOUNT_UPDATE(h) (!DUK_HEAPHDR_HAS_READONLY((h))) +#else /* DUK_USE_ROM_OBJECTS */ +/* Without ROM objects "needs refcount update" == is heap allocated. */ +#define DUK_TVAL_NEEDS_REFCOUNT_UPDATE(tv) DUK_TVAL_IS_HEAP_ALLOCATED((tv)) +#define DUK_HEAPHDR_NEEDS_REFCOUNT_UPDATE(h) 1 +#endif /* DUK_USE_ROM_OBJECTS */ + +/* Fast variants, inline refcount operations except for refzero handling. + * Can be used explicitly when speed is always more important than size. + * For a good compiler and a single file build, these are basically the + * same as a forced inline. + */ +#define DUK_TVAL_INCREF_FAST(thr,tv) do { \ + duk_tval *duk__tv = (tv); \ + DUK_ASSERT(duk__tv != NULL); \ + if (DUK_TVAL_NEEDS_REFCOUNT_UPDATE(duk__tv)) { \ + duk_heaphdr *duk__h = DUK_TVAL_GET_HEAPHDR(duk__tv); \ + DUK_ASSERT(duk__h != NULL); \ + DUK_ASSERT(DUK_HEAPHDR_HTYPE_VALID(duk__h)); \ + DUK_HEAPHDR_PREINC_REFCOUNT(duk__h); \ + } \ + } while (0) +#define DUK_TVAL_DECREF_FAST(thr,tv) do { \ + duk_tval *duk__tv = (tv); \ + DUK_ASSERT(duk__tv != NULL); \ + if (DUK_TVAL_NEEDS_REFCOUNT_UPDATE(duk__tv)) { \ + duk_heaphdr *duk__h = DUK_TVAL_GET_HEAPHDR(duk__tv); \ + DUK_ASSERT(duk__h != NULL); \ + DUK_ASSERT(DUK_HEAPHDR_HTYPE_VALID(duk__h)); \ + DUK_ASSERT(DUK_HEAPHDR_GET_REFCOUNT(duk__h) > 0); \ + if (DUK_HEAPHDR_PREDEC_REFCOUNT(duk__h) == 0) { \ + duk_heaphdr_refzero((thr), duk__h); \ + } \ + } \ + } while (0) +#define DUK_HEAPHDR_INCREF_FAST(thr,h) do { \ + duk_heaphdr *duk__h = (duk_heaphdr *) (h); \ + DUK_ASSERT(duk__h != NULL); \ + DUK_ASSERT(DUK_HEAPHDR_HTYPE_VALID(duk__h)); \ + if (DUK_HEAPHDR_NEEDS_REFCOUNT_UPDATE(duk__h)) { \ + DUK_HEAPHDR_PREINC_REFCOUNT(duk__h); \ + } \ + } while (0) +#define DUK_HEAPHDR_DECREF_FAST(thr,h) do { \ + duk_heaphdr *duk__h = (duk_heaphdr *) (h); \ + DUK_ASSERT(duk__h != NULL); \ + DUK_ASSERT(DUK_HEAPHDR_HTYPE_VALID(duk__h)); \ + DUK_ASSERT(DUK_HEAPHDR_GET_REFCOUNT(duk__h) > 0); \ + if (DUK_HEAPHDR_NEEDS_REFCOUNT_UPDATE(duk__h)) { \ + if (DUK_HEAPHDR_PREDEC_REFCOUNT(duk__h) == 0) { \ + duk_heaphdr_refzero((thr), duk__h); \ + } \ + } \ + } while (0) + +/* Slow variants, call to a helper to reduce code size. + * Can be used explicitly when size is always more important than speed. + */ +#define DUK_TVAL_INCREF_SLOW(thr,tv) do { \ + duk_tval_incref((tv)); \ + } while (0) +#define DUK_TVAL_DECREF_SLOW(thr,tv) do { \ + duk_tval_decref((thr), (tv)); \ + } while (0) +#define DUK_HEAPHDR_INCREF_SLOW(thr,h) do { \ + duk_heaphdr_incref((duk_heaphdr *) (h)); \ + } while (0) +#define DUK_HEAPHDR_DECREF_SLOW(thr,h) do { \ + duk_heaphdr_decref((thr), (duk_heaphdr *) (h)); \ + } while (0) + +/* Default variants. Selection depends on speed/size preference. + * Concretely: with gcc 4.8.1 -Os x64 the difference in final binary + * is about +1kB for _FAST variants. + */ +#if defined(DUK_USE_FAST_REFCOUNT_DEFAULT) +#define DUK_TVAL_INCREF(thr,tv) DUK_TVAL_INCREF_FAST((thr),(tv)) +#define DUK_TVAL_DECREF(thr,tv) DUK_TVAL_DECREF_FAST((thr),(tv)) +#define DUK_HEAPHDR_INCREF(thr,h) DUK_HEAPHDR_INCREF_FAST((thr),(h)) +#define DUK_HEAPHDR_DECREF(thr,h) DUK_HEAPHDR_DECREF_FAST((thr),(h)) +#else +#define DUK_TVAL_INCREF(thr,tv) DUK_TVAL_INCREF_SLOW((thr),(tv)) +#define DUK_TVAL_DECREF(thr,tv) DUK_TVAL_DECREF_SLOW((thr),(tv)) +#define DUK_HEAPHDR_INCREF(thr,h) DUK_HEAPHDR_INCREF_SLOW((thr),(h)) +#define DUK_HEAPHDR_DECREF(thr,h) DUK_HEAPHDR_DECREF_SLOW((thr),(h)) +#endif + +/* Casting convenience. */ +#define DUK_HSTRING_INCREF(thr,h) DUK_HEAPHDR_INCREF((thr),(duk_heaphdr *) (h)) +#define DUK_HSTRING_DECREF(thr,h) DUK_HEAPHDR_DECREF((thr),(duk_heaphdr *) (h)) +#define DUK_HOBJECT_INCREF(thr,h) DUK_HEAPHDR_INCREF((thr),(duk_heaphdr *) (h)) +#define DUK_HOBJECT_DECREF(thr,h) DUK_HEAPHDR_DECREF((thr),(duk_heaphdr *) (h)) +#define DUK_HBUFFER_INCREF(thr,h) DUK_HEAPHDR_INCREF((thr),(duk_heaphdr *) (h)) +#define DUK_HBUFFER_DECREF(thr,h) DUK_HEAPHDR_DECREF((thr),(duk_heaphdr *) (h)) +#define DUK_HCOMPILEDFUNCTION_INCREF(thr,h) DUK_HEAPHDR_INCREF((thr),(duk_heaphdr *) &(h)->obj) +#define DUK_HCOMPILEDFUNCTION_DECREF(thr,h) DUK_HEAPHDR_DECREF((thr),(duk_heaphdr *) &(h)->obj) +#define DUK_HNATIVEFUNCTION_INCREF(thr,h) DUK_HEAPHDR_INCREF((thr),(duk_heaphdr *) &(h)->obj) +#define DUK_HNATIVEFUNCTION_DECREF(thr,h) DUK_HEAPHDR_DECREF((thr),(duk_heaphdr *) &(h)->obj) +#define DUK_HBUFFEROBJECT_INCREF(thr,h) DUK_HEAPHDR_INCREF((thr),(duk_heaphdr *) &(h)->obj) +#define DUK_HBUFFEROBJECT_DECREF(thr,h) DUK_HEAPHDR_DECREF((thr),(duk_heaphdr *) &(h)->obj) +#define DUK_HTHREAD_INCREF(thr,h) DUK_HEAPHDR_INCREF((thr),(duk_heaphdr *) &(h)->obj) +#define DUK_HTHREAD_DECREF(thr,h) DUK_HEAPHDR_DECREF((thr),(duk_heaphdr *) &(h)->obj) + +/* Convenience for some situations; the above macros don't allow NULLs + * for performance reasons. + */ +#define DUK_HOBJECT_INCREF_ALLOWNULL(thr,h) do { \ + if ((h) != NULL) { \ + DUK_HEAPHDR_INCREF((thr), (duk_heaphdr *) (h)); \ + } \ + } while (0) +#define DUK_HOBJECT_DECREF_ALLOWNULL(thr,h) do { \ + if ((h) != NULL) { \ + DUK_HEAPHDR_DECREF((thr), (duk_heaphdr *) (h)); \ + } \ + } while (0) + +/* + * Macros to set a duk_tval and update refcount of the target (decref the + * old value and incref the new value if necessary). This is both performance + * and footprint critical; any changes made should be measured for size/speed. + */ + +#define DUK_TVAL_SET_UNDEFINED_UPDREF_ALT0(thr,tvptr_dst) do { \ + duk_tval *tv__dst; duk_tval tv__tmp; tv__dst = (tvptr_dst); \ + DUK_TVAL_SET_TVAL(&tv__tmp, tv__dst); \ + DUK_TVAL_SET_UNDEFINED(tv__dst); \ + DUK_TVAL_DECREF((thr), &tv__tmp); /* side effects */ \ + } while (0) + +#define DUK_TVAL_SET_UNUSED_UPDREF_ALT0(thr,tvptr_dst) do { \ + duk_tval *tv__dst; duk_tval tv__tmp; tv__dst = (tvptr_dst); \ + DUK_TVAL_SET_TVAL(&tv__tmp, tv__dst); \ + DUK_TVAL_SET_UNUSED(tv__dst); \ + DUK_TVAL_DECREF((thr), &tv__tmp); /* side effects */ \ + } while (0) + +#define DUK_TVAL_SET_NULL_UPDREF_ALT0(thr,tvptr_dst) do { \ + duk_tval *tv__dst; duk_tval tv__tmp; tv__dst = (tvptr_dst); \ + DUK_TVAL_SET_TVAL(&tv__tmp, tv__dst); \ + DUK_TVAL_SET_NULL(tv__dst); \ + DUK_TVAL_DECREF((thr), &tv__tmp); /* side effects */ \ + } while (0) + +#define DUK_TVAL_SET_BOOLEAN_UPDREF_ALT0(thr,tvptr_dst,newval) do { \ + duk_tval *tv__dst; duk_tval tv__tmp; tv__dst = (tvptr_dst); \ + DUK_TVAL_SET_TVAL(&tv__tmp, tv__dst); \ + DUK_TVAL_SET_BOOLEAN(tv__dst, (newval)); \ + DUK_TVAL_DECREF((thr), &tv__tmp); /* side effects */ \ + } while (0) + +#define DUK_TVAL_SET_NUMBER_UPDREF_ALT0(thr,tvptr_dst,newval) do { \ + duk_tval *tv__dst; duk_tval tv__tmp; tv__dst = (tvptr_dst); \ + DUK_TVAL_SET_TVAL(&tv__tmp, tv__dst); \ + DUK_TVAL_SET_NUMBER(tv__dst, (newval)); \ + DUK_TVAL_DECREF((thr), &tv__tmp); /* side effects */ \ + } while (0) +#define DUK_TVAL_SET_NUMBER_CHKFAST_UPDREF_ALT0(thr,tvptr_dst,newval) do { \ + duk_tval *tv__dst; duk_tval tv__tmp; tv__dst = (tvptr_dst); \ + DUK_TVAL_SET_TVAL(&tv__tmp, tv__dst); \ + DUK_TVAL_SET_NUMBER_CHKFAST(tv__dst, (newval)); \ + DUK_TVAL_DECREF((thr), &tv__tmp); /* side effects */ \ + } while (0) +#define DUK_TVAL_SET_DOUBLE_UPDREF_ALT0(thr,tvptr_dst,newval) do { \ + duk_tval *tv__dst; duk_tval tv__tmp; tv__dst = (tvptr_dst); \ + DUK_TVAL_SET_TVAL(&tv__tmp, tv__dst); \ + DUK_TVAL_SET_DOUBLE(tv__dst, (newval)); \ + DUK_TVAL_DECREF((thr), &tv__tmp); /* side effects */ \ + } while (0) +#define DUK_TVAL_SET_NAN_UPDREF_ALT0(thr,tvptr_dst) do { \ + duk_tval *tv__dst; duk_tval tv__tmp; tv__dst = (tvptr_dst); \ + DUK_TVAL_SET_TVAL(&tv__tmp, tv__dst); \ + DUK_TVAL_SET_NAN(tv__dst); \ + DUK_TVAL_DECREF((thr), &tv__tmp); /* side effects */ \ + } while (0) +#if defined(DUK_USE_FASTINT) +#define DUK_TVAL_SET_FASTINT_UPDREF_ALT0(thr,tvptr_dst,newval) do { \ + duk_tval *tv__dst; duk_tval tv__tmp; tv__dst = (tvptr_dst); \ + DUK_TVAL_SET_TVAL(&tv__tmp, tv__dst); \ + DUK_TVAL_SET_FASTINT(tv__dst, (newval)); \ + DUK_TVAL_DECREF((thr), &tv__tmp); /* side effects */ \ + } while (0) +#define DUK_TVAL_SET_FASTINT_I32_UPDREF_ALT0(thr,tvptr_dst,newval) do { \ + duk_tval *tv__dst; duk_tval tv__tmp; tv__dst = (tvptr_dst); \ + DUK_TVAL_SET_TVAL(&tv__tmp, tv__dst); \ + DUK_TVAL_SET_FASTINT_I32(tv__dst, (newval)); \ + DUK_TVAL_DECREF((thr), &tv__tmp); /* side effects */ \ + } while (0) +#define DUK_TVAL_SET_FASTINT_U32_UPDREF_ALT0(thr,tvptr_dst,newval) do { \ + duk_tval *tv__dst; duk_tval tv__tmp; tv__dst = (tvptr_dst); \ + DUK_TVAL_SET_TVAL(&tv__tmp, tv__dst); \ + DUK_TVAL_SET_FASTINT_U32(tv__dst, (newval)); \ + DUK_TVAL_DECREF((thr), &tv__tmp); /* side effects */ \ + } while (0) +#else +#define DUK_TVAL_SET_DOUBLE_CAST_UPDREF(thr,tvptr_dst,newval) \ + DUK_TVAL_SET_DOUBLE_UPDREF((thr), (tvptr_dst), (duk_double_t) (newval)) +#endif /* DUK_USE_FASTINT */ + +#define DUK_TVAL_SET_LIGHTFUNC_UPDREF_ALT0(thr,tvptr_dst,lf_v,lf_fp,lf_flags) do { \ + duk_tval *tv__dst; duk_tval tv__tmp; tv__dst = (tvptr_dst); \ + DUK_TVAL_SET_TVAL(&tv__tmp, tv__dst); \ + DUK_TVAL_SET_LIGHTFUNC(tv__dst, (lf_v), (lf_fp), (lf_flags)); \ + DUK_TVAL_DECREF((thr), &tv__tmp); /* side effects */ \ + } while (0) + +#define DUK_TVAL_SET_STRING_UPDREF_ALT0(thr,tvptr_dst,newval) do { \ + duk_tval *tv__dst; duk_tval tv__tmp; tv__dst = (tvptr_dst); \ + DUK_TVAL_SET_TVAL(&tv__tmp, tv__dst); \ + DUK_TVAL_SET_STRING(tv__dst, (newval)); \ + DUK_HSTRING_INCREF((thr), (newval)); \ + DUK_TVAL_DECREF((thr), &tv__tmp); /* side effects */ \ + } while (0) + +#define DUK_TVAL_SET_OBJECT_UPDREF_ALT0(thr,tvptr_dst,newval) do { \ + duk_tval *tv__dst; duk_tval tv__tmp; tv__dst = (tvptr_dst); \ + DUK_TVAL_SET_TVAL(&tv__tmp, tv__dst); \ + DUK_TVAL_SET_OBJECT(tv__dst, (newval)); \ + DUK_HOBJECT_INCREF((thr), (newval)); \ + DUK_TVAL_DECREF((thr), &tv__tmp); /* side effects */ \ + } while (0) + +#define DUK_TVAL_SET_BUFFER_UPDREF_ALT0(thr,tvptr_dst,newval) do { \ + duk_tval *tv__dst; duk_tval tv__tmp; tv__dst = (tvptr_dst); \ + DUK_TVAL_SET_TVAL(&tv__tmp, tv__dst); \ + DUK_TVAL_SET_BUFFER(tv__dst, (newval)); \ + DUK_HBUFFER_INCREF((thr), (newval)); \ + DUK_TVAL_DECREF((thr), &tv__tmp); /* side effects */ \ + } while (0) + +#define DUK_TVAL_SET_POINTER_UPDREF_ALT0(thr,tvptr_dst,newval) do { \ + duk_tval *tv__dst; duk_tval tv__tmp; tv__dst = (tvptr_dst); \ + DUK_TVAL_SET_TVAL(&tv__tmp, tv__dst); \ + DUK_TVAL_SET_POINTER(tv__dst, (newval)); \ + DUK_TVAL_DECREF((thr), &tv__tmp); /* side effects */ \ + } while (0) + +/* DUK_TVAL_SET_TVAL_UPDREF() is used a lot in executor, property lookups, + * etc, so it's very important for performance. Measure when changing. + * + * NOTE: the source and destination duk_tval pointers may be the same, and + * the macros MUST deal with that correctly. + */ + +/* Original idiom used, minimal code size. */ +#define DUK_TVAL_SET_TVAL_UPDREF_ALT0(thr,tvptr_dst,tvptr_src) do { \ + duk_tval *tv__dst, *tv__src; duk_tval tv__tmp; \ + tv__dst = (tvptr_dst); tv__src = (tvptr_src); \ + DUK_TVAL_SET_TVAL(&tv__tmp, tv__dst); \ + DUK_TVAL_SET_TVAL(tv__dst, tv__src); \ + DUK_TVAL_INCREF((thr), tv__src); \ + DUK_TVAL_DECREF((thr), &tv__tmp); /* side effects */ \ + } while (0) + +/* Faster alternative: avoid making a temporary copy of tvptr_dst and use + * fast incref/decref macros. + */ +#define DUK_TVAL_SET_TVAL_UPDREF_ALT1(thr,tvptr_dst,tvptr_src) do { \ + duk_tval *tv__dst, *tv__src; duk_heaphdr *h__obj; \ + tv__dst = (tvptr_dst); tv__src = (tvptr_src); \ + DUK_TVAL_INCREF_FAST((thr), tv__src); \ + if (DUK_TVAL_NEEDS_REFCOUNT_UPDATE(tv__dst)) { \ + h__obj = DUK_TVAL_GET_HEAPHDR(tv__dst); \ + DUK_ASSERT(h__obj != NULL); \ + DUK_TVAL_SET_TVAL(tv__dst, tv__src); \ + DUK_HEAPHDR_DECREF_FAST((thr), h__obj); /* side effects */ \ + } else { \ + DUK_TVAL_SET_TVAL(tv__dst, tv__src); \ + } \ + } while (0) + +/* XXX: no optimized variants yet */ +#define DUK_TVAL_SET_UNDEFINED_UPDREF DUK_TVAL_SET_UNDEFINED_UPDREF_ALT0 +#define DUK_TVAL_SET_UNUSED_UPDREF DUK_TVAL_SET_UNUSED_UPDREF_ALT0 +#define DUK_TVAL_SET_NULL_UPDREF DUK_TVAL_SET_NULL_UPDREF_ALT0 +#define DUK_TVAL_SET_BOOLEAN_UPDREF DUK_TVAL_SET_BOOLEAN_UPDREF_ALT0 +#define DUK_TVAL_SET_NUMBER_UPDREF DUK_TVAL_SET_NUMBER_UPDREF_ALT0 +#define DUK_TVAL_SET_NUMBER_CHKFAST_UPDREF DUK_TVAL_SET_NUMBER_CHKFAST_UPDREF_ALT0 +#define DUK_TVAL_SET_DOUBLE_UPDREF DUK_TVAL_SET_DOUBLE_UPDREF_ALT0 +#define DUK_TVAL_SET_NAN_UPDREF DUK_TVAL_SET_NAN_UPDREF_ALT0 +#if defined(DUK_USE_FASTINT) +#define DUK_TVAL_SET_FASTINT_UPDREF DUK_TVAL_SET_FASTINT_UPDREF_ALT0 +#define DUK_TVAL_SET_FASTINT_I32_UPDREF DUK_TVAL_SET_FASTINT_I32_UPDREF_ALT0 +#define DUK_TVAL_SET_FASTINT_U32_UPDREF DUK_TVAL_SET_FASTINT_U32_UPDREF_ALT0 +#else +#define DUK_TVAL_SET_FASTINT_UPDREF DUK_TVAL_SET_DOUBLE_CAST_UPDREF /* XXX: fast int-to-double */ +#define DUK_TVAL_SET_FASTINT_I32_UPDREF DUK_TVAL_SET_DOUBLE_CAST_UPDREF +#define DUK_TVAL_SET_FASTINT_U32_UPDREF DUK_TVAL_SET_DOUBLE_CAST_UPDREF +#endif /* DUK_USE_FASTINT */ +#define DUK_TVAL_SET_LIGHTFUNC_UPDREF DUK_TVAL_SET_LIGHTFUNC_UPDREF_ALT0 +#define DUK_TVAL_SET_STRING_UPDREF DUK_TVAL_SET_STRING_UPDREF_ALT0 +#define DUK_TVAL_SET_OBJECT_UPDREF DUK_TVAL_SET_OBJECT_UPDREF_ALT0 +#define DUK_TVAL_SET_BUFFER_UPDREF DUK_TVAL_SET_BUFFER_UPDREF_ALT0 +#define DUK_TVAL_SET_POINTER_UPDREF DUK_TVAL_SET_POINTER_UPDREF_ALT0 + +#if defined(DUK_USE_FAST_REFCOUNT_DEFAULT) +/* Optimized for speed. */ +#define DUK_TVAL_SET_TVAL_UPDREF DUK_TVAL_SET_TVAL_UPDREF_ALT1 +#define DUK_TVAL_SET_TVAL_UPDREF_FAST DUK_TVAL_SET_TVAL_UPDREF_ALT1 +#define DUK_TVAL_SET_TVAL_UPDREF_SLOW DUK_TVAL_SET_TVAL_UPDREF_ALT0 +#else +/* Optimized for size. */ +#define DUK_TVAL_SET_TVAL_UPDREF DUK_TVAL_SET_TVAL_UPDREF_ALT0 +#define DUK_TVAL_SET_TVAL_UPDREF_FAST DUK_TVAL_SET_TVAL_UPDREF_ALT0 +#define DUK_TVAL_SET_TVAL_UPDREF_SLOW DUK_TVAL_SET_TVAL_UPDREF_ALT0 +#endif + +#else /* DUK_USE_REFERENCE_COUNTING */ + +#define DUK_TVAL_INCREF_FAST(thr,v) do {} while (0) /* nop */ +#define DUK_TVAL_DECREF_FAST(thr,v) do {} while (0) /* nop */ +#define DUK_TVAL_INCREF_SLOW(thr,v) do {} while (0) /* nop */ +#define DUK_TVAL_DECREF_SLOW(thr,v) do {} while (0) /* nop */ +#define DUK_TVAL_INCREF(thr,v) do {} while (0) /* nop */ +#define DUK_TVAL_DECREF(thr,v) do {} while (0) /* nop */ +#define DUK_HEAPHDR_INCREF_FAST(thr,h) do {} while (0) /* nop */ +#define DUK_HEAPHDR_DECREF_FAST(thr,h) do {} while (0) /* nop */ +#define DUK_HEAPHDR_INCREF_SLOW(thr,h) do {} while (0) /* nop */ +#define DUK_HEAPHDR_DECREF_SLOW(thr,h) do {} while (0) /* nop */ +#define DUK_HEAPHDR_INCREF(thr,h) do {} while (0) /* nop */ +#define DUK_HEAPHDR_DECREF(thr,h) do {} while (0) /* nop */ +#define DUK_HSTRING_INCREF(thr,h) do {} while (0) /* nop */ +#define DUK_HSTRING_DECREF(thr,h) do {} while (0) /* nop */ +#define DUK_HOBJECT_INCREF(thr,h) do {} while (0) /* nop */ +#define DUK_HOBJECT_DECREF(thr,h) do {} while (0) /* nop */ +#define DUK_HBUFFER_INCREF(thr,h) do {} while (0) /* nop */ +#define DUK_HBUFFER_DECREF(thr,h) do {} while (0) /* nop */ +#define DUK_HCOMPILEDFUNCTION_INCREF(thr,h) do {} while (0) /* nop */ +#define DUK_HCOMPILEDFUNCTION_DECREF(thr,h) do {} while (0) /* nop */ +#define DUK_HNATIVEFUNCTION_INCREF(thr,h) do {} while (0) /* nop */ +#define DUK_HNATIVEFUNCTION_DECREF(thr,h) do {} while (0) /* nop */ +#define DUK_HBUFFEROBJECT_INCREF(thr,h) do {} while (0) /* nop */ +#define DUK_HBUFFEROBJECT_DECREF(thr,h) do {} while (0) /* nop */ +#define DUK_HTHREAD_INCREF(thr,h) do {} while (0) /* nop */ +#define DUK_HTHREAD_DECREF(thr,h) do {} while (0) /* nop */ +#define DUK_HOBJECT_INCREF_ALLOWNULL(thr,h) do {} while (0) /* nop */ +#define DUK_HOBJECT_DECREF_ALLOWNULL(thr,h) do {} while (0) /* nop */ + +#define DUK_TVAL_SET_UNDEFINED_UPDREF_ALT0(thr,tvptr_dst) do { \ + duk_tval *tv__dst; tv__dst = (tvptr_dst); \ + DUK_TVAL_SET_UNDEFINED(tv__dst); \ + DUK_UNREF((thr)); \ + } while (0) + +#define DUK_TVAL_SET_UNUSED_UPDREF_ALT0(thr,tvptr_dst) do { \ + duk_tval *tv__dst; tv__dst = (tvptr_dst); \ + DUK_TVAL_SET_UNUSED(tv__dst); \ + DUK_UNREF((thr)); \ + } while (0) + +#define DUK_TVAL_SET_NULL_UPDREF_ALT0(thr,tvptr_dst) do { \ + duk_tval *tv__dst; tv__dst = (tvptr_dst); \ + DUK_TVAL_SET_NULL(tv__dst); \ + DUK_UNREF((thr)); \ + } while (0) + +#define DUK_TVAL_SET_BOOLEAN_UPDREF_ALT0(thr,tvptr_dst,newval) do { \ + duk_tval *tv__dst; tv__dst = (tvptr_dst); \ + DUK_TVAL_SET_BOOLEAN(tv__dst, (newval)); \ + DUK_UNREF((thr)); \ + } while (0) + +#define DUK_TVAL_SET_NUMBER_UPDREF_ALT0(thr,tvptr_dst,newval) do { \ + duk_tval *tv__dst; tv__dst = (tvptr_dst); \ + DUK_TVAL_SET_NUMBER(tv__dst, (newval)); \ + DUK_UNREF((thr)); \ + } while (0) +#define DUK_TVAL_SET_NUMBER_CHKFAST_UPDREF_ALT0(thr,tvptr_dst,newval) do { \ + duk_tval *tv__dst; tv__dst = (tvptr_dst); \ + DUK_TVAL_SET_NUMBER_CHKFAST(tv__dst, (newval)); \ + DUK_UNREF((thr)); \ + } while (0) +#define DUK_TVAL_SET_DOUBLE_UPDREF_ALT0(thr,tvptr_dst,newval) do { \ + duk_tval *tv__dst; tv__dst = (tvptr_dst); \ + DUK_TVAL_SET_DOUBLE(tv__dst, (newval)); \ + DUK_UNREF((thr)); \ + } while (0) +#define DUK_TVAL_SET_NAN_UPDREF_ALT0(thr,tvptr_dst) do { \ + duk_tval *tv__dst; tv__dst = (tvptr_dst); \ + DUK_TVAL_SET_NAN(tv__dst); \ + DUK_UNREF((thr)); \ + } while (0) +#if defined(DUK_USE_FASTINT) +#define DUK_TVAL_SET_FASTINT_UPDREF_ALT0(thr,tvptr_dst,newval) do { \ + duk_tval *tv__dst; tv__dst = (tvptr_dst); \ + DUK_TVAL_SET_FASTINT(tv__dst, (newval)); \ + DUK_UNREF((thr)); \ + } while (0) +#define DUK_TVAL_SET_FASTINT_I32_UPDREF_ALT0(thr,tvptr_dst,newval) do { \ + duk_tval *tv__dst; tv__dst = (tvptr_dst); \ + DUK_TVAL_SET_FASTINT_I32(tv__dst, (newval)); \ + DUK_UNREF((thr)); \ + } while (0) +#define DUK_TVAL_SET_FASTINT_U32_UPDREF_ALT0(thr,tvptr_dst,newval) do { \ + duk_tval *tv__dst; tv__dst = (tvptr_dst); \ + DUK_TVAL_SET_FASTINT_U32(tv__dst, (newval)); \ + DUK_UNREF((thr)); \ + } while (0) +#else +#define DUK_TVAL_SET_DOUBLE_CAST_UPDREF(thr,tvptr_dst,newval) \ + DUK_TVAL_SET_DOUBLE_UPDREF((thr), (tvptr_dst), (duk_double_t) (newval)) +#endif /* DUK_USE_FASTINT */ + +#define DUK_TVAL_SET_LIGHTFUNC_UPDREF_ALT0(thr,tvptr_dst,lf_v,lf_fp,lf_flags) do { \ + duk_tval *tv__dst; tv__dst = (tvptr_dst); \ + DUK_TVAL_SET_LIGHTFUNC(tv__dst, (lf_v), (lf_fp), (lf_flags)); \ + DUK_UNREF((thr)); \ + } while (0) + +#define DUK_TVAL_SET_STRING_UPDREF_ALT0(thr,tvptr_dst,newval) do { \ + duk_tval *tv__dst; tv__dst = (tvptr_dst); \ + DUK_TVAL_SET_STRING(tv__dst, (newval)); \ + DUK_UNREF((thr)); \ + } while (0) + +#define DUK_TVAL_SET_OBJECT_UPDREF_ALT0(thr,tvptr_dst,newval) do { \ + duk_tval *tv__dst; tv__dst = (tvptr_dst); \ + DUK_TVAL_SET_OBJECT(tv__dst, (newval)); \ + DUK_UNREF((thr)); \ + } while (0) + +#define DUK_TVAL_SET_BUFFER_UPDREF_ALT0(thr,tvptr_dst,newval) do { \ + duk_tval *tv__dst; tv__dst = (tvptr_dst); \ + DUK_TVAL_SET_BUFFER(tv__dst, (newval)); \ + DUK_UNREF((thr)); \ + } while (0) + +#define DUK_TVAL_SET_POINTER_UPDREF_ALT0(thr,tvptr_dst,newval) do { \ + duk_tval *tv__dst; tv__dst = (tvptr_dst); \ + DUK_TVAL_SET_POINTER(tv__dst, (newval)); \ + DUK_UNREF((thr)); \ + } while (0) + +#define DUK_TVAL_SET_TVAL_UPDREF_ALT0(thr,tvptr_dst,tvptr_src) do { \ + duk_tval *tv__dst, *tv__src; \ + tv__dst = (tvptr_dst); tv__src = (tvptr_src); \ + DUK_TVAL_SET_TVAL(tv__dst, tv__src); \ + DUK_UNREF((thr)); \ + } while (0) + +#define DUK_TVAL_SET_UNDEFINED_UPDREF DUK_TVAL_SET_UNDEFINED_UPDREF_ALT0 +#define DUK_TVAL_SET_UNUSED_UPDREF DUK_TVAL_SET_UNUSED_UPDREF_ALT0 +#define DUK_TVAL_SET_NULL_UPDREF DUK_TVAL_SET_NULL_UPDREF_ALT0 +#define DUK_TVAL_SET_BOOLEAN_UPDREF DUK_TVAL_SET_BOOLEAN_UPDREF_ALT0 +#define DUK_TVAL_SET_NUMBER_UPDREF DUK_TVAL_SET_NUMBER_UPDREF_ALT0 +#define DUK_TVAL_SET_NUMBER_CHKFAST_UPDREF DUK_TVAL_SET_NUMBER_CHKFAST_UPDREF_ALT0 +#define DUK_TVAL_SET_DOUBLE_UPDREF DUK_TVAL_SET_DOUBLE_UPDREF_ALT0 +#define DUK_TVAL_SET_NAN_UPDREF DUK_TVAL_SET_NAN_UPDREF_ALT0 +#if defined(DUK_USE_FASTINT) +#define DUK_TVAL_SET_FASTINT_UPDREF DUK_TVAL_SET_FASTINT_UPDREF_ALT0 +#define DUK_TVAL_SET_FASTINT_I32_UPDREF DUK_TVAL_SET_FASTINT_I32_UPDREF_ALT0 +#define DUK_TVAL_SET_FASTINT_U32_UPDREF DUK_TVAL_SET_FASTINT_U32_UPDREF_ALT0 +#else +#define DUK_TVAL_SET_FASTINT_UPDREF DUK_TVAL_SET_DOUBLE_CAST_UPDREF /* XXX: fast-int-to-double */ +#define DUK_TVAL_SET_FASTINT_I32_UPDREF DUK_TVAL_SET_DOUBLE_CAST_UPDREF +#define DUK_TVAL_SET_FASTINT_U32_UPDREF DUK_TVAL_SET_DOUBLE_CAST_UPDREF +#endif /* DUK_USE_FASTINT */ +#define DUK_TVAL_SET_LIGHTFUNC_UPDREF DUK_TVAL_SET_LIGHTFUNC_UPDREF_ALT0 +#define DUK_TVAL_SET_STRING_UPDREF DUK_TVAL_SET_STRING_UPDREF_ALT0 +#define DUK_TVAL_SET_OBJECT_UPDREF DUK_TVAL_SET_OBJECT_UPDREF_ALT0 +#define DUK_TVAL_SET_BUFFER_UPDREF DUK_TVAL_SET_BUFFER_UPDREF_ALT0 +#define DUK_TVAL_SET_POINTER_UPDREF DUK_TVAL_SET_POINTER_UPDREF_ALT0 + +#define DUK_TVAL_SET_TVAL_UPDREF DUK_TVAL_SET_TVAL_UPDREF_ALT0 +#define DUK_TVAL_SET_TVAL_UPDREF_FAST DUK_TVAL_SET_TVAL_UPDREF_ALT0 +#define DUK_TVAL_SET_TVAL_UPDREF_SLOW DUK_TVAL_SET_TVAL_UPDREF_ALT0 + +#endif /* DUK_USE_REFERENCE_COUNTING */ + +#endif /* DUK_HEAPHDR_H_INCLUDED */ +#line 1 "duk_api_internal.h" +/* + * Internal API calls which have (stack and other) semantics similar + * to the public API. + */ + +#ifndef DUK_API_INTERNAL_H_INCLUDED +#define DUK_API_INTERNAL_H_INCLUDED + +/* duk_push_sprintf constants */ +#define DUK_PUSH_SPRINTF_INITIAL_SIZE 256L +#define DUK_PUSH_SPRINTF_SANITY_LIMIT (1L * 1024L * 1024L * 1024L) + +/* Flag ORed to err_code to indicate __FILE__ / __LINE__ is not + * blamed as source of error for error fileName / lineNumber. + */ +#define DUK_ERRCODE_FLAG_NOBLAME_FILELINE (1L << 24) + +/* Valstack resize flags */ +#define DUK_VSRESIZE_FLAG_SHRINK (1 << 0) +#define DUK_VSRESIZE_FLAG_COMPACT (1 << 1) +#define DUK_VSRESIZE_FLAG_THROW (1 << 2) + +/* Current convention is to use duk_size_t for value stack sizes and global indices, + * and duk_idx_t for local frame indices. + */ +DUK_INTERNAL_DECL +duk_bool_t duk_valstack_resize_raw(duk_context *ctx, + duk_size_t min_new_size, + duk_small_uint_t flags); + +#if defined(DUK_USE_VERBOSE_ERRORS) && defined(DUK_USE_PARANOID_ERRORS) +DUK_INTERNAL_DECL const char *duk_get_type_name(duk_context *ctx, duk_idx_t index); +#endif + +DUK_INTERNAL_DECL duk_tval *duk_get_tval(duk_context *ctx, duk_idx_t index); +DUK_INTERNAL_DECL duk_tval *duk_require_tval(duk_context *ctx, duk_idx_t index); +DUK_INTERNAL_DECL void duk_push_tval(duk_context *ctx, duk_tval *tv); + +/* Push the current 'this' binding; throw TypeError if binding is not object + * coercible (CheckObjectCoercible). + */ +DUK_INTERNAL_DECL void duk_push_this_check_object_coercible(duk_context *ctx); + +/* duk_push_this() + CheckObjectCoercible() + duk_to_object() */ +DUK_INTERNAL_DECL duk_hobject *duk_push_this_coercible_to_object(duk_context *ctx); + +/* duk_push_this() + CheckObjectCoercible() + duk_to_string() */ +DUK_INTERNAL_DECL duk_hstring *duk_push_this_coercible_to_string(duk_context *ctx); + +/* Get a borrowed duk_tval pointer to the current 'this' binding. Caller must + * make sure there's an active callstack entry. Note that the returned pointer + * is unstable with regards to side effects. + */ +DUK_INTERNAL_DECL duk_tval *duk_get_borrowed_this_tval(duk_context *ctx); + +/* XXX: add fastint support? */ +#define duk_push_u64(ctx,val) \ + duk_push_number((ctx), (duk_double_t) (val)) +#define duk_push_i64(ctx,val) \ + duk_push_number((ctx), (duk_double_t) (val)) + +/* duk_push_(u)int() is guaranteed to support at least (un)signed 32-bit range */ +#define duk_push_u32(ctx,val) \ + duk_push_uint((ctx), (duk_uint_t) (val)) +#define duk_push_i32(ctx,val) \ + duk_push_int((ctx), (duk_int_t) (val)) + +/* sometimes stack and array indices need to go on the stack */ +#define duk_push_idx(ctx,val) \ + duk_push_int((ctx), (duk_int_t) (val)) +#define duk_push_uarridx(ctx,val) \ + duk_push_uint((ctx), (duk_uint_t) (val)) +#define duk_push_size_t(ctx,val) \ + duk_push_uint((ctx), (duk_uint_t) (val)) /* XXX: assumed to fit for now */ + +DUK_INTERNAL_DECL duk_hstring *duk_get_hstring(duk_context *ctx, duk_idx_t index); +DUK_INTERNAL_DECL duk_hobject *duk_get_hobject(duk_context *ctx, duk_idx_t index); +DUK_INTERNAL_DECL duk_hbuffer *duk_get_hbuffer(duk_context *ctx, duk_idx_t index); +DUK_INTERNAL_DECL duk_hthread *duk_get_hthread(duk_context *ctx, duk_idx_t index); +DUK_INTERNAL_DECL duk_hcompiledfunction *duk_get_hcompiledfunction(duk_context *ctx, duk_idx_t index); +DUK_INTERNAL_DECL duk_hnativefunction *duk_get_hnativefunction(duk_context *ctx, duk_idx_t index); + +DUK_INTERNAL_DECL duk_hobject *duk_get_hobject_with_class(duk_context *ctx, duk_idx_t index, duk_small_uint_t classnum); + +#if 0 /* This would be pointless: unexpected type and lightfunc would both return NULL */ +DUK_INTERNAL_DECL duk_hobject *duk_get_hobject_or_lfunc(duk_context *ctx, duk_idx_t index); +#endif +DUK_INTERNAL_DECL duk_hobject *duk_get_hobject_or_lfunc_coerce(duk_context *ctx, duk_idx_t index); + +#if 0 /*unused*/ +DUK_INTERNAL_DECL void *duk_get_voidptr(duk_context *ctx, duk_idx_t index); +#endif + +DUK_INTERNAL_DECL duk_hstring *duk_to_hstring(duk_context *ctx, duk_idx_t index); +#if defined(DUK_USE_DEBUGGER_SUPPORT) /* only needed by debugger for now */ +DUK_INTERNAL_DECL duk_hstring *duk_safe_to_hstring(duk_context *ctx, duk_idx_t index); +#endif +DUK_INTERNAL_DECL void duk_to_object_class_string_top(duk_context *ctx); +#if !defined(DUK_USE_PARANOID_ERRORS) +DUK_INTERNAL_DECL void duk_push_hobject_class_string(duk_context *ctx, duk_hobject *h); +#endif + +DUK_INTERNAL_DECL duk_int_t duk_to_int_clamped_raw(duk_context *ctx, duk_idx_t index, duk_int_t minval, duk_int_t maxval, duk_bool_t *out_clamped); /* out_clamped=NULL, RangeError if outside range */ +DUK_INTERNAL_DECL duk_int_t duk_to_int_clamped(duk_context *ctx, duk_idx_t index, duk_int_t minval, duk_int_t maxval); +DUK_INTERNAL_DECL duk_int_t duk_to_int_check_range(duk_context *ctx, duk_idx_t index, duk_int_t minval, duk_int_t maxval); +#if defined(DUK_USE_BUFFEROBJECT_SUPPORT) +DUK_INTERNAL_DECL duk_uint8_t duk_to_uint8clamped(duk_context *ctx, duk_idx_t index); +#endif + +DUK_INTERNAL_DECL duk_hstring *duk_require_hstring(duk_context *ctx, duk_idx_t index); +DUK_INTERNAL_DECL duk_hobject *duk_require_hobject(duk_context *ctx, duk_idx_t index); +DUK_INTERNAL_DECL duk_hbuffer *duk_require_hbuffer(duk_context *ctx, duk_idx_t index); +DUK_INTERNAL_DECL duk_hthread *duk_require_hthread(duk_context *ctx, duk_idx_t index); +DUK_INTERNAL_DECL duk_hcompiledfunction *duk_require_hcompiledfunction(duk_context *ctx, duk_idx_t index); +DUK_INTERNAL_DECL duk_hnativefunction *duk_require_hnativefunction(duk_context *ctx, duk_idx_t index); + +DUK_INTERNAL_DECL duk_hobject *duk_require_hobject_with_class(duk_context *ctx, duk_idx_t index, duk_small_uint_t classnum); + +DUK_INTERNAL_DECL duk_hobject *duk_require_hobject_or_lfunc(duk_context *ctx, duk_idx_t index); +DUK_INTERNAL_DECL duk_hobject *duk_require_hobject_or_lfunc_coerce(duk_context *ctx, duk_idx_t index); + +DUK_INTERNAL_DECL void duk_push_hstring(duk_context *ctx, duk_hstring *h); +DUK_INTERNAL_DECL void duk_push_hstring_stridx(duk_context *ctx, duk_small_int_t stridx); +DUK_INTERNAL_DECL void duk_push_hobject(duk_context *ctx, duk_hobject *h); +DUK_INTERNAL_DECL void duk_push_hbuffer(duk_context *ctx, duk_hbuffer *h); +#define duk_push_hthread(ctx,h) \ + duk_push_hobject((ctx), (duk_hobject *) (h)) +#define duk_push_hcompiledfunction(ctx,h) \ + duk_push_hobject((ctx), (duk_hobject *) (h)) +#define duk_push_hnativefunction(ctx,h) \ + duk_push_hobject((ctx), (duk_hobject *) (h)) +DUK_INTERNAL_DECL void duk_push_hobject_bidx(duk_context *ctx, duk_small_int_t builtin_idx); +DUK_INTERNAL_DECL duk_idx_t duk_push_object_helper(duk_context *ctx, duk_uint_t hobject_flags_and_class, duk_small_int_t prototype_bidx); +DUK_INTERNAL_DECL duk_idx_t duk_push_object_helper_proto(duk_context *ctx, duk_uint_t hobject_flags_and_class, duk_hobject *proto); +DUK_INTERNAL_DECL duk_idx_t duk_push_object_internal(duk_context *ctx); +DUK_INTERNAL_DECL duk_idx_t duk_push_compiledfunction(duk_context *ctx); +DUK_INTERNAL_DECL void duk_push_c_function_noexotic(duk_context *ctx, duk_c_function func, duk_int_t nargs); +DUK_INTERNAL_DECL void duk_push_c_function_noconstruct_noexotic(duk_context *ctx, duk_c_function func, duk_int_t nargs); + +DUK_INTERNAL_DECL void duk_push_string_funcptr(duk_context *ctx, duk_uint8_t *ptr, duk_size_t sz); +DUK_INTERNAL_DECL void duk_push_lightfunc_name(duk_context *ctx, duk_tval *tv); +DUK_INTERNAL_DECL void duk_push_lightfunc_tostring(duk_context *ctx, duk_tval *tv); +DUK_INTERNAL_DECL duk_hbufferobject *duk_push_bufferobject_raw(duk_context *ctx, duk_uint_t hobject_flags_and_class, duk_small_int_t prototype_bidx); + +#if !defined(DUK_USE_PARANOID_ERRORS) +DUK_INTERNAL_DECL const char *duk_push_string_readable(duk_context *ctx, duk_idx_t index); +DUK_INTERNAL_DECL const char *duk_push_string_tval_readable(duk_context *ctx, duk_tval *tv); +#endif + +DUK_INTERNAL_DECL duk_bool_t duk_get_prop_stridx(duk_context *ctx, duk_idx_t obj_index, duk_small_int_t stridx); /* [] -> [val] */ +DUK_INTERNAL_DECL duk_bool_t duk_put_prop_stridx(duk_context *ctx, duk_idx_t obj_index, duk_small_int_t stridx); /* [val] -> [] */ +DUK_INTERNAL_DECL duk_bool_t duk_del_prop_stridx(duk_context *ctx, duk_idx_t obj_index, duk_small_int_t stridx); /* [] -> [] */ +DUK_INTERNAL_DECL duk_bool_t duk_has_prop_stridx(duk_context *ctx, duk_idx_t obj_index, duk_small_int_t stridx); /* [] -> [] */ + +DUK_INTERNAL_DECL duk_bool_t duk_get_prop_stridx_boolean(duk_context *ctx, duk_idx_t obj_index, duk_small_int_t stridx, duk_bool_t *out_has_prop); /* [] -> [] */ + +DUK_INTERNAL_DECL void duk_xdef_prop(duk_context *ctx, duk_idx_t obj_index, duk_small_uint_t desc_flags); /* [key val] -> [] */ +DUK_INTERNAL_DECL void duk_xdef_prop_index(duk_context *ctx, duk_idx_t obj_index, duk_uarridx_t arr_index, duk_small_uint_t desc_flags); /* [val] -> [] */ +DUK_INTERNAL_DECL void duk_xdef_prop_stridx(duk_context *ctx, duk_idx_t obj_index, duk_small_int_t stridx, duk_small_uint_t desc_flags); /* [val] -> [] */ +DUK_INTERNAL_DECL void duk_xdef_prop_stridx_builtin(duk_context *ctx, duk_idx_t obj_index, duk_small_int_t stridx, duk_small_int_t builtin_idx, duk_small_uint_t desc_flags); /* [] -> [] */ +DUK_INTERNAL_DECL void duk_xdef_prop_stridx_thrower(duk_context *ctx, duk_idx_t obj_index, duk_small_int_t stridx, duk_small_uint_t desc_flags); /* [] -> [] */ + +/* These are macros for now, but could be separate functions to reduce code + * footprint (check call site count before refactoring). + */ +#define duk_xdef_prop_wec(ctx,obj_index) \ + duk_xdef_prop((ctx), (obj_index), DUK_PROPDESC_FLAGS_WEC) +#define duk_xdef_prop_index_wec(ctx,obj_index,arr_index) \ + duk_xdef_prop_index((ctx), (obj_index), (arr_index), DUK_PROPDESC_FLAGS_WEC) +#define duk_xdef_prop_stridx_wec(ctx,obj_index,stridx) \ + duk_xdef_prop_stridx((ctx), (obj_index), (stridx), DUK_PROPDESC_FLAGS_WEC) + +/* Set object 'length'. */ +DUK_INTERNAL_DECL void duk_set_length(duk_context *ctx, duk_idx_t index, duk_size_t length); + +/* Raw internal valstack access macros: access is unsafe so call site + * must have a guarantee that the index is valid. When that is the case, + * using these macro results in faster and smaller code than duk_get_tval(). + * Both 'ctx' and 'idx' are evaluted multiple times, but only for asserts. + */ +#define DUK_ASSERT_VALID_NEGIDX(ctx,idx) \ + (DUK_ASSERT_EXPR((idx) < 0), DUK_ASSERT_EXPR(duk_is_valid_index((ctx), (idx)))) +#define DUK_ASSERT_VALID_POSIDX(ctx,idx) \ + (DUK_ASSERT_EXPR((idx) >= 0), DUK_ASSERT_EXPR(duk_is_valid_index((ctx), (idx)))) +#define DUK_GET_TVAL_NEGIDX(ctx,idx) \ + (DUK_ASSERT_VALID_NEGIDX((ctx),(idx)), ((duk_hthread *) (ctx))->valstack_top + (idx)) +#define DUK_GET_TVAL_POSIDX(ctx,idx) \ + (DUK_ASSERT_VALID_POSIDX((ctx),(idx)), ((duk_hthread *) (ctx))->valstack_bottom + (idx)) +#define DUK_GET_HOBJECT_NEGIDX(ctx,idx) \ + (DUK_ASSERT_VALID_NEGIDX((ctx),(idx)), DUK_TVAL_GET_OBJECT(((duk_hthread *) (ctx))->valstack_top + (idx))) +#define DUK_GET_HOBJECT_POSIDX(ctx,idx) \ + (DUK_ASSERT_VALID_POSIDX((ctx),(idx)), DUK_TVAL_GET_OBJECT(((duk_hthread *) (ctx))->valstack_bottom + (idx))) + +#endif /* DUK_API_INTERNAL_H_INCLUDED */ +#line 1 "duk_hstring.h" +/* + * Heap string representation. + * + * Strings are byte sequences ordinarily stored in extended UTF-8 format, + * allowing values larger than the official UTF-8 range (used internally) + * and also allowing UTF-8 encoding of surrogate pairs (CESU-8 format). + * Strings may also be invalid UTF-8 altogether which is the case e.g. with + * strings used as internal property names and raw buffers converted to + * strings. In such cases the 'clen' field contains an inaccurate value. + * + * Ecmascript requires support for 32-bit long strings. However, since each + * 16-bit codepoint can take 3 bytes in CESU-8, this representation can only + * support about 1.4G codepoint long strings in extreme cases. This is not + * really a practical issue. + */ + +#ifndef DUK_HSTRING_H_INCLUDED +#define DUK_HSTRING_H_INCLUDED + +/* Impose a maximum string length for now. Restricted artificially to + * ensure adding a heap header length won't overflow size_t. The limit + * should be synchronized with DUK_HBUFFER_MAX_BYTELEN. + * + * E5.1 makes provisions to support strings longer than 4G characters. + * This limit should be eliminated on 64-bit platforms (and increased + * closer to maximum support on 32-bit platforms). + */ + +#if defined(DUK_USE_STRLEN16) +#define DUK_HSTRING_MAX_BYTELEN (0x0000ffffUL) +#else +#define DUK_HSTRING_MAX_BYTELEN (0x7fffffffUL) +#endif + +/* XXX: could add flags for "is valid CESU-8" (Ecmascript compatible strings), + * "is valid UTF-8", "is valid extended UTF-8" (internal strings are not, + * regexp bytecode is), and "contains non-BMP characters". These are not + * needed right now. + */ + +#define DUK_HSTRING_FLAG_ASCII DUK_HEAPHDR_USER_FLAG(0) /* string is ASCII, clen == blen */ +#define DUK_HSTRING_FLAG_ARRIDX DUK_HEAPHDR_USER_FLAG(1) /* string is a valid array index */ +#define DUK_HSTRING_FLAG_INTERNAL DUK_HEAPHDR_USER_FLAG(2) /* string is internal */ +#define DUK_HSTRING_FLAG_RESERVED_WORD DUK_HEAPHDR_USER_FLAG(3) /* string is a reserved word (non-strict) */ +#define DUK_HSTRING_FLAG_STRICT_RESERVED_WORD DUK_HEAPHDR_USER_FLAG(4) /* string is a reserved word (strict) */ +#define DUK_HSTRING_FLAG_EVAL_OR_ARGUMENTS DUK_HEAPHDR_USER_FLAG(5) /* string is 'eval' or 'arguments' */ +#define DUK_HSTRING_FLAG_EXTDATA DUK_HEAPHDR_USER_FLAG(6) /* string data is external (duk_hstring_external) */ + +#define DUK_HSTRING_HAS_ASCII(x) DUK_HEAPHDR_CHECK_FLAG_BITS(&(x)->hdr, DUK_HSTRING_FLAG_ASCII) +#define DUK_HSTRING_HAS_ARRIDX(x) DUK_HEAPHDR_CHECK_FLAG_BITS(&(x)->hdr, DUK_HSTRING_FLAG_ARRIDX) +#define DUK_HSTRING_HAS_INTERNAL(x) DUK_HEAPHDR_CHECK_FLAG_BITS(&(x)->hdr, DUK_HSTRING_FLAG_INTERNAL) +#define DUK_HSTRING_HAS_RESERVED_WORD(x) DUK_HEAPHDR_CHECK_FLAG_BITS(&(x)->hdr, DUK_HSTRING_FLAG_RESERVED_WORD) +#define DUK_HSTRING_HAS_STRICT_RESERVED_WORD(x) DUK_HEAPHDR_CHECK_FLAG_BITS(&(x)->hdr, DUK_HSTRING_FLAG_STRICT_RESERVED_WORD) +#define DUK_HSTRING_HAS_EVAL_OR_ARGUMENTS(x) DUK_HEAPHDR_CHECK_FLAG_BITS(&(x)->hdr, DUK_HSTRING_FLAG_EVAL_OR_ARGUMENTS) +#define DUK_HSTRING_HAS_EXTDATA(x) DUK_HEAPHDR_CHECK_FLAG_BITS(&(x)->hdr, DUK_HSTRING_FLAG_EXTDATA) + +#define DUK_HSTRING_SET_ASCII(x) DUK_HEAPHDR_SET_FLAG_BITS(&(x)->hdr, DUK_HSTRING_FLAG_ASCII) +#define DUK_HSTRING_SET_ARRIDX(x) DUK_HEAPHDR_SET_FLAG_BITS(&(x)->hdr, DUK_HSTRING_FLAG_ARRIDX) +#define DUK_HSTRING_SET_INTERNAL(x) DUK_HEAPHDR_SET_FLAG_BITS(&(x)->hdr, DUK_HSTRING_FLAG_INTERNAL) +#define DUK_HSTRING_SET_RESERVED_WORD(x) DUK_HEAPHDR_SET_FLAG_BITS(&(x)->hdr, DUK_HSTRING_FLAG_RESERVED_WORD) +#define DUK_HSTRING_SET_STRICT_RESERVED_WORD(x) DUK_HEAPHDR_SET_FLAG_BITS(&(x)->hdr, DUK_HSTRING_FLAG_STRICT_RESERVED_WORD) +#define DUK_HSTRING_SET_EVAL_OR_ARGUMENTS(x) DUK_HEAPHDR_SET_FLAG_BITS(&(x)->hdr, DUK_HSTRING_FLAG_EVAL_OR_ARGUMENTS) +#define DUK_HSTRING_SET_EXTDATA(x) DUK_HEAPHDR_SET_FLAG_BITS(&(x)->hdr, DUK_HSTRING_FLAG_EXTDATA) + +#define DUK_HSTRING_CLEAR_ASCII(x) DUK_HEAPHDR_CLEAR_FLAG_BITS(&(x)->hdr, DUK_HSTRING_FLAG_ASCII) +#define DUK_HSTRING_CLEAR_ARRIDX(x) DUK_HEAPHDR_CLEAR_FLAG_BITS(&(x)->hdr, DUK_HSTRING_FLAG_ARRIDX) +#define DUK_HSTRING_CLEAR_INTERNAL(x) DUK_HEAPHDR_CLEAR_FLAG_BITS(&(x)->hdr, DUK_HSTRING_FLAG_INTERNAL) +#define DUK_HSTRING_CLEAR_RESERVED_WORD(x) DUK_HEAPHDR_CLEAR_FLAG_BITS(&(x)->hdr, DUK_HSTRING_FLAG_RESERVED_WORD) +#define DUK_HSTRING_CLEAR_STRICT_RESERVED_WORD(x) DUK_HEAPHDR_CLEAR_FLAG_BITS(&(x)->hdr, DUK_HSTRING_FLAG_STRICT_RESERVED_WORD) +#define DUK_HSTRING_CLEAR_EVAL_OR_ARGUMENTS(x) DUK_HEAPHDR_CLEAR_FLAG_BITS(&(x)->hdr, DUK_HSTRING_FLAG_EVAL_OR_ARGUMENTS) +#define DUK_HSTRING_CLEAR_EXTDATA(x) DUK_HEAPHDR_CLEAR_FLAG_BITS(&(x)->hdr, DUK_HSTRING_FLAG_EXTDATA) + +#if 0 /* Slightly smaller code without explicit flag, but explicit flag + * is very useful when 'clen' is dropped. + */ +#define DUK_HSTRING_IS_ASCII(x) (DUK_HSTRING_GET_BYTELEN((x)) == DUK_HSTRING_GET_CHARLEN((x))) +#endif +#define DUK_HSTRING_IS_ASCII(x) DUK_HSTRING_HAS_ASCII((x)) +#define DUK_HSTRING_IS_EMPTY(x) (DUK_HSTRING_GET_BYTELEN((x)) == 0) + +#if defined(DUK_USE_STRHASH16) +#define DUK_HSTRING_GET_HASH(x) ((x)->hdr.h_flags >> 16) +#define DUK_HSTRING_SET_HASH(x,v) do { \ + (x)->hdr.h_flags = ((x)->hdr.h_flags & 0x0000ffffUL) | ((v) << 16); \ + } while (0) +#else +#define DUK_HSTRING_GET_HASH(x) ((x)->hash) +#define DUK_HSTRING_SET_HASH(x,v) do { \ + (x)->hash = (v); \ + } while (0) +#endif + +#if defined(DUK_USE_STRLEN16) +#define DUK_HSTRING_GET_BYTELEN(x) ((x)->hdr.h_strextra16) +#define DUK_HSTRING_SET_BYTELEN(x,v) do { \ + (x)->hdr.h_strextra16 = (v); \ + } while (0) +#if defined(DUK_USE_HSTRING_CLEN) +#define DUK_HSTRING_GET_CHARLEN(x) ((x)->clen16) +#define DUK_HSTRING_SET_CHARLEN(x,v) do { \ + (x)->clen16 = (v); \ + } while (0) +#else +#define DUK_HSTRING_GET_CHARLEN(x) duk_hstring_get_charlen((x)) +#define DUK_HSTRING_SET_CHARLEN(x,v) do { \ + DUK_ASSERT(0); /* should never be called */ \ + } while (0) +#endif +#else +#define DUK_HSTRING_GET_BYTELEN(x) ((x)->blen) +#define DUK_HSTRING_SET_BYTELEN(x,v) do { \ + (x)->blen = (v); \ + } while (0) +#define DUK_HSTRING_GET_CHARLEN(x) ((x)->clen) +#define DUK_HSTRING_SET_CHARLEN(x,v) do { \ + (x)->clen = (v); \ + } while (0) +#endif + +#if defined(DUK_USE_HSTRING_EXTDATA) +#define DUK_HSTRING_GET_EXTDATA(x) \ + ((x)->extdata) +#define DUK_HSTRING_GET_DATA(x) \ + (DUK_HSTRING_HAS_EXTDATA((x)) ? \ + DUK_HSTRING_GET_EXTDATA((const duk_hstring_external *) (x)) : ((const duk_uint8_t *) ((x) + 1))) +#else +#define DUK_HSTRING_GET_DATA(x) \ + ((const duk_uint8_t *) ((x) + 1)) +#endif + +#define DUK_HSTRING_GET_DATA_END(x) \ + (DUK_HSTRING_GET_DATA((x)) + (x)->blen) + +/* marker value; in E5 2^32-1 is not a valid array index (2^32-2 is highest valid) */ +#define DUK_HSTRING_NO_ARRAY_INDEX (0xffffffffUL) + +/* get array index related to string (or return DUK_HSTRING_NO_ARRAY_INDEX); + * avoids helper call if string has no array index value. + */ +#define DUK_HSTRING_GET_ARRIDX_FAST(h) \ + (DUK_HSTRING_HAS_ARRIDX((h)) ? duk_js_to_arrayindex_string_helper((h)) : DUK_HSTRING_NO_ARRAY_INDEX) + +/* slower but more compact variant */ +#define DUK_HSTRING_GET_ARRIDX_SLOW(h) \ + (duk_js_to_arrayindex_string_helper((h))) + +/* + * Misc + */ + +struct duk_hstring { + /* Smaller heaphdr than for other objects, because strings are held + * in string intern table which requires no link pointers. Much of + * the 32-bit flags field is unused by flags, so we can stuff a 16-bit + * field in there. + */ + duk_heaphdr_string hdr; + + /* Note: we could try to stuff a partial hash (e.g. 16 bits) into the + * shared heap header. Good hashing needs more hash bits though. + */ + + /* string hash */ +#if defined(DUK_USE_STRHASH16) + /* If 16-bit hash is in use, stuff it into duk_heaphdr_string flags. */ +#else + duk_uint32_t hash; +#endif + + /* length in bytes (not counting NUL term) */ +#if defined(DUK_USE_STRLEN16) + /* placed in duk_heaphdr_string */ +#else + duk_uint32_t blen; +#endif + + /* length in codepoints (must be E5 compatible) */ +#if defined(DUK_USE_STRLEN16) +#if defined(DUK_USE_HSTRING_CLEN) + duk_uint16_t clen16; +#else + /* computed live */ +#endif +#else + duk_uint32_t clen; +#endif + + /* + * String value of 'blen+1' bytes follows (+1 for NUL termination + * convenience for C API). No alignment needs to be guaranteed + * for strings, but fields above should guarantee alignment-by-4 + * (but not alignment-by-8). + */ +}; + +/* The external string struct is defined even when the feature is inactive. */ +struct duk_hstring_external { + duk_hstring str; + + /* + * For an external string, the NUL-terminated string data is stored + * externally. The user must guarantee that data behind this pointer + * doesn't change while it's used. + */ + + const duk_uint8_t *extdata; +}; + +/* + * Prototypes + */ + +DUK_INTERNAL_DECL duk_ucodepoint_t duk_hstring_char_code_at_raw(duk_hthread *thr, duk_hstring *h, duk_uint_t pos); + +#if !defined(DUK_USE_HSTRING_CLEN) +DUK_INTERNAL_DECL duk_size_t duk_hstring_get_charlen(duk_hstring *h); +#endif + +#endif /* DUK_HSTRING_H_INCLUDED */ +#line 1 "duk_hobject.h" +/* + * Heap object representation. + * + * Heap objects are used for Ecmascript objects, arrays, and functions, + * but also for internal control like declarative and object environment + * records. Compiled functions, native functions, and threads are also + * objects but with an extended C struct. + * + * Objects provide the required Ecmascript semantics and exotic behaviors + * especially for property access. + * + * Properties are stored in three conceptual parts: + * + * 1. A linear 'entry part' contains ordered key-value-attributes triples + * and is the main method of string properties. + * + * 2. An optional linear 'array part' is used for array objects to store a + * (dense) range of [0,N[ array indexed entries with default attributes + * (writable, enumerable, configurable). If the array part would become + * sparse or non-default attributes are required, the array part is + * abandoned and moved to the 'entry part'. + * + * 3. An optional 'hash part' is used to optimize lookups of the entry + * part; it is used only for objects with sufficiently many properties + * and can be abandoned without loss of information. + * + * These three conceptual parts are stored in a single memory allocated area. + * This minimizes memory allocation overhead but also means that all three + * parts are resized together, and makes property access a bit complicated. + */ + +#ifndef DUK_HOBJECT_H_INCLUDED +#define DUK_HOBJECT_H_INCLUDED + +/* Object flag. There are currently 26 flag bits available. Make sure + * this stays in sync with debugger object inspection code. + */ +#define DUK_HOBJECT_FLAG_EXTENSIBLE DUK_HEAPHDR_USER_FLAG(0) /* object is extensible */ +#define DUK_HOBJECT_FLAG_CONSTRUCTABLE DUK_HEAPHDR_USER_FLAG(1) /* object is constructable */ +#define DUK_HOBJECT_FLAG_BOUND DUK_HEAPHDR_USER_FLAG(2) /* object established using Function.prototype.bind() */ +#define DUK_HOBJECT_FLAG_COMPILEDFUNCTION DUK_HEAPHDR_USER_FLAG(4) /* object is a compiled function (duk_hcompiledfunction) */ +#define DUK_HOBJECT_FLAG_NATIVEFUNCTION DUK_HEAPHDR_USER_FLAG(5) /* object is a native function (duk_hnativefunction) */ +#define DUK_HOBJECT_FLAG_BUFFEROBJECT DUK_HEAPHDR_USER_FLAG(6) /* object is a buffer object (duk_hbufferobject) (always exotic) */ +#define DUK_HOBJECT_FLAG_THREAD DUK_HEAPHDR_USER_FLAG(7) /* object is a thread (duk_hthread) */ +#define DUK_HOBJECT_FLAG_ARRAY_PART DUK_HEAPHDR_USER_FLAG(8) /* object has an array part (a_size may still be 0) */ +#define DUK_HOBJECT_FLAG_STRICT DUK_HEAPHDR_USER_FLAG(9) /* function: function object is strict */ +#define DUK_HOBJECT_FLAG_NOTAIL DUK_HEAPHDR_USER_FLAG(10) /* function: function must not be tail called */ +#define DUK_HOBJECT_FLAG_NEWENV DUK_HEAPHDR_USER_FLAG(11) /* function: create new environment when called (see duk_hcompiledfunction) */ +#define DUK_HOBJECT_FLAG_NAMEBINDING DUK_HEAPHDR_USER_FLAG(12) /* function: create binding for func name (function templates only, used for named function expressions) */ +#define DUK_HOBJECT_FLAG_CREATEARGS DUK_HEAPHDR_USER_FLAG(13) /* function: create an arguments object on function call */ +#define DUK_HOBJECT_FLAG_ENVRECCLOSED DUK_HEAPHDR_USER_FLAG(14) /* envrec: (declarative) record is closed */ +#define DUK_HOBJECT_FLAG_EXOTIC_ARRAY DUK_HEAPHDR_USER_FLAG(15) /* 'Array' object, array length and index exotic behavior */ +#define DUK_HOBJECT_FLAG_EXOTIC_STRINGOBJ DUK_HEAPHDR_USER_FLAG(16) /* 'String' object, array index exotic behavior */ +#define DUK_HOBJECT_FLAG_EXOTIC_ARGUMENTS DUK_HEAPHDR_USER_FLAG(17) /* 'Arguments' object and has arguments exotic behavior (non-strict callee) */ +#define DUK_HOBJECT_FLAG_EXOTIC_DUKFUNC DUK_HEAPHDR_USER_FLAG(18) /* Duktape/C (nativefunction) object, exotic 'length' */ +#define DUK_HOBJECT_FLAG_EXOTIC_PROXYOBJ DUK_HEAPHDR_USER_FLAG(19) /* 'Proxy' object */ + +#define DUK_HOBJECT_FLAG_CLASS_BASE DUK_HEAPHDR_USER_FLAG_NUMBER(20) +#define DUK_HOBJECT_FLAG_CLASS_BITS 5 + +#define DUK_HOBJECT_GET_CLASS_NUMBER(h) \ + DUK_HEAPHDR_GET_FLAG_RANGE(&(h)->hdr, DUK_HOBJECT_FLAG_CLASS_BASE, DUK_HOBJECT_FLAG_CLASS_BITS) +#define DUK_HOBJECT_SET_CLASS_NUMBER(h,v) \ + DUK_HEAPHDR_SET_FLAG_RANGE(&(h)->hdr, DUK_HOBJECT_FLAG_CLASS_BASE, DUK_HOBJECT_FLAG_CLASS_BITS, (v)) + +#define DUK_HOBJECT_GET_CLASS_MASK(h) \ + (1UL << DUK_HEAPHDR_GET_FLAG_RANGE(&(h)->hdr, DUK_HOBJECT_FLAG_CLASS_BASE, DUK_HOBJECT_FLAG_CLASS_BITS)) + +/* Macro for creating flag initializer from a class number. + * Unsigned type cast is needed to avoid warnings about coercing + * a signed integer to an unsigned one; the largest class values + * have the highest bit (bit 31) set which causes this. + */ +#define DUK_HOBJECT_CLASS_AS_FLAGS(v) (((duk_uint_t) (v)) << DUK_HOBJECT_FLAG_CLASS_BASE) + +/* E5 Section 8.6.2 + custom classes */ +#define DUK_HOBJECT_CLASS_UNUSED 0 +#define DUK_HOBJECT_CLASS_ARGUMENTS 1 +#define DUK_HOBJECT_CLASS_ARRAY 2 +#define DUK_HOBJECT_CLASS_BOOLEAN 3 +#define DUK_HOBJECT_CLASS_DATE 4 +#define DUK_HOBJECT_CLASS_ERROR 5 +#define DUK_HOBJECT_CLASS_FUNCTION 6 +#define DUK_HOBJECT_CLASS_JSON 7 +#define DUK_HOBJECT_CLASS_MATH 8 +#define DUK_HOBJECT_CLASS_NUMBER 9 +#define DUK_HOBJECT_CLASS_OBJECT 10 +#define DUK_HOBJECT_CLASS_REGEXP 11 +#define DUK_HOBJECT_CLASS_STRING 12 +#define DUK_HOBJECT_CLASS_GLOBAL 13 +#define DUK_HOBJECT_CLASS_OBJENV 14 /* custom */ +#define DUK_HOBJECT_CLASS_DECENV 15 /* custom */ +#define DUK_HOBJECT_CLASS_BUFFER 16 /* custom; implies DUK_HOBJECT_IS_BUFFEROBJECT */ +#define DUK_HOBJECT_CLASS_POINTER 17 /* custom */ +#define DUK_HOBJECT_CLASS_THREAD 18 /* custom; implies DUK_HOBJECT_IS_THREAD */ +#define DUK_HOBJECT_CLASS_ARRAYBUFFER 19 /* implies DUK_HOBJECT_IS_BUFFEROBJECT */ +#define DUK_HOBJECT_CLASS_DATAVIEW 20 +#define DUK_HOBJECT_CLASS_INT8ARRAY 21 +#define DUK_HOBJECT_CLASS_UINT8ARRAY 22 +#define DUK_HOBJECT_CLASS_UINT8CLAMPEDARRAY 23 +#define DUK_HOBJECT_CLASS_INT16ARRAY 24 +#define DUK_HOBJECT_CLASS_UINT16ARRAY 25 +#define DUK_HOBJECT_CLASS_INT32ARRAY 26 +#define DUK_HOBJECT_CLASS_UINT32ARRAY 27 +#define DUK_HOBJECT_CLASS_FLOAT32ARRAY 28 +#define DUK_HOBJECT_CLASS_FLOAT64ARRAY 29 +#define DUK_HOBJECT_CLASS_MAX 29 + +/* class masks */ +#define DUK_HOBJECT_CMASK_ALL ((1UL << (DUK_HOBJECT_CLASS_MAX + 1)) - 1UL) +#define DUK_HOBJECT_CMASK_UNUSED (1UL << DUK_HOBJECT_CLASS_UNUSED) +#define DUK_HOBJECT_CMASK_ARGUMENTS (1UL << DUK_HOBJECT_CLASS_ARGUMENTS) +#define DUK_HOBJECT_CMASK_ARRAY (1UL << DUK_HOBJECT_CLASS_ARRAY) +#define DUK_HOBJECT_CMASK_BOOLEAN (1UL << DUK_HOBJECT_CLASS_BOOLEAN) +#define DUK_HOBJECT_CMASK_DATE (1UL << DUK_HOBJECT_CLASS_DATE) +#define DUK_HOBJECT_CMASK_ERROR (1UL << DUK_HOBJECT_CLASS_ERROR) +#define DUK_HOBJECT_CMASK_FUNCTION (1UL << DUK_HOBJECT_CLASS_FUNCTION) +#define DUK_HOBJECT_CMASK_JSON (1UL << DUK_HOBJECT_CLASS_JSON) +#define DUK_HOBJECT_CMASK_MATH (1UL << DUK_HOBJECT_CLASS_MATH) +#define DUK_HOBJECT_CMASK_NUMBER (1UL << DUK_HOBJECT_CLASS_NUMBER) +#define DUK_HOBJECT_CMASK_OBJECT (1UL << DUK_HOBJECT_CLASS_OBJECT) +#define DUK_HOBJECT_CMASK_REGEXP (1UL << DUK_HOBJECT_CLASS_REGEXP) +#define DUK_HOBJECT_CMASK_STRING (1UL << DUK_HOBJECT_CLASS_STRING) +#define DUK_HOBJECT_CMASK_GLOBAL (1UL << DUK_HOBJECT_CLASS_GLOBAL) +#define DUK_HOBJECT_CMASK_OBJENV (1UL << DUK_HOBJECT_CLASS_OBJENV) +#define DUK_HOBJECT_CMASK_DECENV (1UL << DUK_HOBJECT_CLASS_DECENV) +#define DUK_HOBJECT_CMASK_BUFFER (1UL << DUK_HOBJECT_CLASS_BUFFER) +#define DUK_HOBJECT_CMASK_POINTER (1UL << DUK_HOBJECT_CLASS_POINTER) +#define DUK_HOBJECT_CMASK_THREAD (1UL << DUK_HOBJECT_CLASS_THREAD) +#define DUK_HOBJECT_CMASK_ARRAYBUFFER (1UL << DUK_HOBJECT_CLASS_ARRAYBUFFER) +#define DUK_HOBJECT_CMASK_DATAVIEW (1UL << DUK_HOBJECT_CLASS_DATAVIEW) +#define DUK_HOBJECT_CMASK_INT8ARRAY (1UL << DUK_HOBJECT_CLASS_INT8ARRAY) +#define DUK_HOBJECT_CMASK_UINT8ARRAY (1UL << DUK_HOBJECT_CLASS_UINT8ARRAY) +#define DUK_HOBJECT_CMASK_UINT8CLAMPEDARRAY (1UL << DUK_HOBJECT_CLASS_UINT8CLAMPEDARRAY) +#define DUK_HOBJECT_CMASK_INT16ARRAY (1UL << DUK_HOBJECT_CLASS_INT16ARRAY) +#define DUK_HOBJECT_CMASK_UINT16ARRAY (1UL << DUK_HOBJECT_CLASS_UINT16ARRAY) +#define DUK_HOBJECT_CMASK_INT32ARRAY (1UL << DUK_HOBJECT_CLASS_INT32ARRAY) +#define DUK_HOBJECT_CMASK_UINT32ARRAY (1UL << DUK_HOBJECT_CLASS_UINT32ARRAY) +#define DUK_HOBJECT_CMASK_FLOAT32ARRAY (1UL << DUK_HOBJECT_CLASS_FLOAT32ARRAY) +#define DUK_HOBJECT_CMASK_FLOAT64ARRAY (1UL << DUK_HOBJECT_CLASS_FLOAT64ARRAY) + +#define DUK_HOBJECT_CMASK_ALL_BUFFEROBJECTS \ + (DUK_HOBJECT_CMASK_BUFFER | \ + DUK_HOBJECT_CMASK_ARRAYBUFFER | \ + DUK_HOBJECT_CMASK_DATAVIEW | \ + DUK_HOBJECT_CMASK_INT8ARRAY | \ + DUK_HOBJECT_CMASK_UINT8ARRAY | \ + DUK_HOBJECT_CMASK_UINT8CLAMPEDARRAY | \ + DUK_HOBJECT_CMASK_INT16ARRAY | \ + DUK_HOBJECT_CMASK_UINT16ARRAY | \ + DUK_HOBJECT_CMASK_INT32ARRAY | \ + DUK_HOBJECT_CMASK_UINT32ARRAY | \ + DUK_HOBJECT_CMASK_FLOAT32ARRAY | \ + DUK_HOBJECT_CMASK_FLOAT64ARRAY) + +#define DUK_HOBJECT_IS_OBJENV(h) (DUK_HOBJECT_GET_CLASS_NUMBER((h)) == DUK_HOBJECT_CLASS_OBJENV) +#define DUK_HOBJECT_IS_DECENV(h) (DUK_HOBJECT_GET_CLASS_NUMBER((h)) == DUK_HOBJECT_CLASS_DECENV) +#define DUK_HOBJECT_IS_ENV(h) (DUK_HOBJECT_IS_OBJENV((h)) || DUK_HOBJECT_IS_DECENV((h))) +#define DUK_HOBJECT_IS_ARRAY(h) (DUK_HOBJECT_GET_CLASS_NUMBER((h)) == DUK_HOBJECT_CLASS_ARRAY) +#define DUK_HOBJECT_IS_COMPILEDFUNCTION(h) DUK_HEAPHDR_CHECK_FLAG_BITS(&(h)->hdr, DUK_HOBJECT_FLAG_COMPILEDFUNCTION) +#define DUK_HOBJECT_IS_NATIVEFUNCTION(h) DUK_HEAPHDR_CHECK_FLAG_BITS(&(h)->hdr, DUK_HOBJECT_FLAG_NATIVEFUNCTION) +#define DUK_HOBJECT_IS_BUFFEROBJECT(h) DUK_HEAPHDR_CHECK_FLAG_BITS(&(h)->hdr, DUK_HOBJECT_FLAG_BUFFEROBJECT) +#define DUK_HOBJECT_IS_THREAD(h) DUK_HEAPHDR_CHECK_FLAG_BITS(&(h)->hdr, DUK_HOBJECT_FLAG_THREAD) + +#define DUK_HOBJECT_IS_NONBOUND_FUNCTION(h) DUK_HEAPHDR_CHECK_FLAG_BITS(&(h)->hdr, \ + DUK_HOBJECT_FLAG_COMPILEDFUNCTION | \ + DUK_HOBJECT_FLAG_NATIVEFUNCTION) + +#define DUK_HOBJECT_IS_FUNCTION(h) DUK_HEAPHDR_CHECK_FLAG_BITS(&(h)->hdr, \ + DUK_HOBJECT_FLAG_BOUND | \ + DUK_HOBJECT_FLAG_COMPILEDFUNCTION | \ + DUK_HOBJECT_FLAG_NATIVEFUNCTION) + +#define DUK_HOBJECT_IS_CALLABLE(h) DUK_HEAPHDR_CHECK_FLAG_BITS(&(h)->hdr, \ + DUK_HOBJECT_FLAG_BOUND | \ + DUK_HOBJECT_FLAG_COMPILEDFUNCTION | \ + DUK_HOBJECT_FLAG_NATIVEFUNCTION) + +/* object has any exotic behavior(s) */ +#define DUK_HOBJECT_EXOTIC_BEHAVIOR_FLAGS (DUK_HOBJECT_FLAG_EXOTIC_ARRAY | \ + DUK_HOBJECT_FLAG_EXOTIC_ARGUMENTS | \ + DUK_HOBJECT_FLAG_EXOTIC_STRINGOBJ | \ + DUK_HOBJECT_FLAG_EXOTIC_DUKFUNC | \ + DUK_HOBJECT_FLAG_BUFFEROBJECT | \ + DUK_HOBJECT_FLAG_EXOTIC_PROXYOBJ) + +#define DUK_HOBJECT_HAS_EXOTIC_BEHAVIOR(h) DUK_HEAPHDR_CHECK_FLAG_BITS(&(h)->hdr, DUK_HOBJECT_EXOTIC_BEHAVIOR_FLAGS) + +#define DUK_HOBJECT_HAS_EXTENSIBLE(h) DUK_HEAPHDR_CHECK_FLAG_BITS(&(h)->hdr, DUK_HOBJECT_FLAG_EXTENSIBLE) +#define DUK_HOBJECT_HAS_CONSTRUCTABLE(h) DUK_HEAPHDR_CHECK_FLAG_BITS(&(h)->hdr, DUK_HOBJECT_FLAG_CONSTRUCTABLE) +#define DUK_HOBJECT_HAS_BOUND(h) DUK_HEAPHDR_CHECK_FLAG_BITS(&(h)->hdr, DUK_HOBJECT_FLAG_BOUND) +#define DUK_HOBJECT_HAS_COMPILEDFUNCTION(h) DUK_HEAPHDR_CHECK_FLAG_BITS(&(h)->hdr, DUK_HOBJECT_FLAG_COMPILEDFUNCTION) +#define DUK_HOBJECT_HAS_NATIVEFUNCTION(h) DUK_HEAPHDR_CHECK_FLAG_BITS(&(h)->hdr, DUK_HOBJECT_FLAG_NATIVEFUNCTION) +#define DUK_HOBJECT_HAS_BUFFEROBJECT(h) DUK_HEAPHDR_CHECK_FLAG_BITS(&(h)->hdr, DUK_HOBJECT_FLAG_BUFFEROBJECT) +#define DUK_HOBJECT_HAS_THREAD(h) DUK_HEAPHDR_CHECK_FLAG_BITS(&(h)->hdr, DUK_HOBJECT_FLAG_THREAD) +#define DUK_HOBJECT_HAS_ARRAY_PART(h) DUK_HEAPHDR_CHECK_FLAG_BITS(&(h)->hdr, DUK_HOBJECT_FLAG_ARRAY_PART) +#define DUK_HOBJECT_HAS_STRICT(h) DUK_HEAPHDR_CHECK_FLAG_BITS(&(h)->hdr, DUK_HOBJECT_FLAG_STRICT) +#define DUK_HOBJECT_HAS_NOTAIL(h) DUK_HEAPHDR_CHECK_FLAG_BITS(&(h)->hdr, DUK_HOBJECT_FLAG_NOTAIL) +#define DUK_HOBJECT_HAS_NEWENV(h) DUK_HEAPHDR_CHECK_FLAG_BITS(&(h)->hdr, DUK_HOBJECT_FLAG_NEWENV) +#define DUK_HOBJECT_HAS_NAMEBINDING(h) DUK_HEAPHDR_CHECK_FLAG_BITS(&(h)->hdr, DUK_HOBJECT_FLAG_NAMEBINDING) +#define DUK_HOBJECT_HAS_CREATEARGS(h) DUK_HEAPHDR_CHECK_FLAG_BITS(&(h)->hdr, DUK_HOBJECT_FLAG_CREATEARGS) +#define DUK_HOBJECT_HAS_ENVRECCLOSED(h) DUK_HEAPHDR_CHECK_FLAG_BITS(&(h)->hdr, DUK_HOBJECT_FLAG_ENVRECCLOSED) +#define DUK_HOBJECT_HAS_EXOTIC_ARRAY(h) DUK_HEAPHDR_CHECK_FLAG_BITS(&(h)->hdr, DUK_HOBJECT_FLAG_EXOTIC_ARRAY) +#define DUK_HOBJECT_HAS_EXOTIC_STRINGOBJ(h) DUK_HEAPHDR_CHECK_FLAG_BITS(&(h)->hdr, DUK_HOBJECT_FLAG_EXOTIC_STRINGOBJ) +#define DUK_HOBJECT_HAS_EXOTIC_ARGUMENTS(h) DUK_HEAPHDR_CHECK_FLAG_BITS(&(h)->hdr, DUK_HOBJECT_FLAG_EXOTIC_ARGUMENTS) +#define DUK_HOBJECT_HAS_EXOTIC_DUKFUNC(h) DUK_HEAPHDR_CHECK_FLAG_BITS(&(h)->hdr, DUK_HOBJECT_FLAG_EXOTIC_DUKFUNC) +#define DUK_HOBJECT_HAS_EXOTIC_PROXYOBJ(h) DUK_HEAPHDR_CHECK_FLAG_BITS(&(h)->hdr, DUK_HOBJECT_FLAG_EXOTIC_PROXYOBJ) + +#define DUK_HOBJECT_SET_EXTENSIBLE(h) DUK_HEAPHDR_SET_FLAG_BITS(&(h)->hdr, DUK_HOBJECT_FLAG_EXTENSIBLE) +#define DUK_HOBJECT_SET_CONSTRUCTABLE(h) DUK_HEAPHDR_SET_FLAG_BITS(&(h)->hdr, DUK_HOBJECT_FLAG_CONSTRUCTABLE) +#define DUK_HOBJECT_SET_BOUND(h) DUK_HEAPHDR_SET_FLAG_BITS(&(h)->hdr, DUK_HOBJECT_FLAG_BOUND) +#define DUK_HOBJECT_SET_COMPILEDFUNCTION(h) DUK_HEAPHDR_SET_FLAG_BITS(&(h)->hdr, DUK_HOBJECT_FLAG_COMPILEDFUNCTION) +#define DUK_HOBJECT_SET_NATIVEFUNCTION(h) DUK_HEAPHDR_SET_FLAG_BITS(&(h)->hdr, DUK_HOBJECT_FLAG_NATIVEFUNCTION) +#define DUK_HOBJECT_SET_BUFFEROBJECT(h) DUK_HEAPHDR_SET_FLAG_BITS(&(h)->hdr, DUK_HOBJECT_FLAG_BUFFEROBJECT) +#define DUK_HOBJECT_SET_THREAD(h) DUK_HEAPHDR_SET_FLAG_BITS(&(h)->hdr, DUK_HOBJECT_FLAG_THREAD) +#define DUK_HOBJECT_SET_ARRAY_PART(h) DUK_HEAPHDR_SET_FLAG_BITS(&(h)->hdr, DUK_HOBJECT_FLAG_ARRAY_PART) +#define DUK_HOBJECT_SET_STRICT(h) DUK_HEAPHDR_SET_FLAG_BITS(&(h)->hdr, DUK_HOBJECT_FLAG_STRICT) +#define DUK_HOBJECT_SET_NOTAIL(h) DUK_HEAPHDR_SET_FLAG_BITS(&(h)->hdr, DUK_HOBJECT_FLAG_NOTAIL) +#define DUK_HOBJECT_SET_NEWENV(h) DUK_HEAPHDR_SET_FLAG_BITS(&(h)->hdr, DUK_HOBJECT_FLAG_NEWENV) +#define DUK_HOBJECT_SET_NAMEBINDING(h) DUK_HEAPHDR_SET_FLAG_BITS(&(h)->hdr, DUK_HOBJECT_FLAG_NAMEBINDING) +#define DUK_HOBJECT_SET_CREATEARGS(h) DUK_HEAPHDR_SET_FLAG_BITS(&(h)->hdr, DUK_HOBJECT_FLAG_CREATEARGS) +#define DUK_HOBJECT_SET_ENVRECCLOSED(h) DUK_HEAPHDR_SET_FLAG_BITS(&(h)->hdr, DUK_HOBJECT_FLAG_ENVRECCLOSED) +#define DUK_HOBJECT_SET_EXOTIC_ARRAY(h) DUK_HEAPHDR_SET_FLAG_BITS(&(h)->hdr, DUK_HOBJECT_FLAG_EXOTIC_ARRAY) +#define DUK_HOBJECT_SET_EXOTIC_STRINGOBJ(h) DUK_HEAPHDR_SET_FLAG_BITS(&(h)->hdr, DUK_HOBJECT_FLAG_EXOTIC_STRINGOBJ) +#define DUK_HOBJECT_SET_EXOTIC_ARGUMENTS(h) DUK_HEAPHDR_SET_FLAG_BITS(&(h)->hdr, DUK_HOBJECT_FLAG_EXOTIC_ARGUMENTS) +#define DUK_HOBJECT_SET_EXOTIC_DUKFUNC(h) DUK_HEAPHDR_SET_FLAG_BITS(&(h)->hdr, DUK_HOBJECT_FLAG_EXOTIC_DUKFUNC) +#define DUK_HOBJECT_SET_EXOTIC_PROXYOBJ(h) DUK_HEAPHDR_SET_FLAG_BITS(&(h)->hdr, DUK_HOBJECT_FLAG_EXOTIC_PROXYOBJ) + +#define DUK_HOBJECT_CLEAR_EXTENSIBLE(h) DUK_HEAPHDR_CLEAR_FLAG_BITS(&(h)->hdr, DUK_HOBJECT_FLAG_EXTENSIBLE) +#define DUK_HOBJECT_CLEAR_CONSTRUCTABLE(h) DUK_HEAPHDR_CLEAR_FLAG_BITS(&(h)->hdr, DUK_HOBJECT_FLAG_CONSTRUCTABLE) +#define DUK_HOBJECT_CLEAR_BOUND(h) DUK_HEAPHDR_CLEAR_FLAG_BITS(&(h)->hdr, DUK_HOBJECT_FLAG_BOUND) +#define DUK_HOBJECT_CLEAR_COMPILEDFUNCTION(h) DUK_HEAPHDR_CLEAR_FLAG_BITS(&(h)->hdr, DUK_HOBJECT_FLAG_COMPILEDFUNCTION) +#define DUK_HOBJECT_CLEAR_NATIVEFUNCTION(h) DUK_HEAPHDR_CLEAR_FLAG_BITS(&(h)->hdr, DUK_HOBJECT_FLAG_NATIVEFUNCTION) +#define DUK_HOBJECT_CLEAR_BUFFEROBJECT(h) DUK_HEAPHDR_CLEAR_FLAG_BITS(&(h)->hdr, DUK_HOBJECT_FLAG_BUFFEROBJECT) +#define DUK_HOBJECT_CLEAR_THREAD(h) DUK_HEAPHDR_CLEAR_FLAG_BITS(&(h)->hdr, DUK_HOBJECT_FLAG_THREAD) +#define DUK_HOBJECT_CLEAR_ARRAY_PART(h) DUK_HEAPHDR_CLEAR_FLAG_BITS(&(h)->hdr, DUK_HOBJECT_FLAG_ARRAY_PART) +#define DUK_HOBJECT_CLEAR_STRICT(h) DUK_HEAPHDR_CLEAR_FLAG_BITS(&(h)->hdr, DUK_HOBJECT_FLAG_STRICT) +#define DUK_HOBJECT_CLEAR_NOTAIL(h) DUK_HEAPHDR_CLEAR_FLAG_BITS(&(h)->hdr, DUK_HOBJECT_FLAG_NOTAIL) +#define DUK_HOBJECT_CLEAR_NEWENV(h) DUK_HEAPHDR_CLEAR_FLAG_BITS(&(h)->hdr, DUK_HOBJECT_FLAG_NEWENV) +#define DUK_HOBJECT_CLEAR_NAMEBINDING(h) DUK_HEAPHDR_CLEAR_FLAG_BITS(&(h)->hdr, DUK_HOBJECT_FLAG_NAMEBINDING) +#define DUK_HOBJECT_CLEAR_CREATEARGS(h) DUK_HEAPHDR_CLEAR_FLAG_BITS(&(h)->hdr, DUK_HOBJECT_FLAG_CREATEARGS) +#define DUK_HOBJECT_CLEAR_ENVRECCLOSED(h) DUK_HEAPHDR_CLEAR_FLAG_BITS(&(h)->hdr, DUK_HOBJECT_FLAG_ENVRECCLOSED) +#define DUK_HOBJECT_CLEAR_EXOTIC_ARRAY(h) DUK_HEAPHDR_CLEAR_FLAG_BITS(&(h)->hdr, DUK_HOBJECT_FLAG_EXOTIC_ARRAY) +#define DUK_HOBJECT_CLEAR_EXOTIC_STRINGOBJ(h) DUK_HEAPHDR_CLEAR_FLAG_BITS(&(h)->hdr, DUK_HOBJECT_FLAG_EXOTIC_STRINGOBJ) +#define DUK_HOBJECT_CLEAR_EXOTIC_ARGUMENTS(h) DUK_HEAPHDR_CLEAR_FLAG_BITS(&(h)->hdr, DUK_HOBJECT_FLAG_EXOTIC_ARGUMENTS) +#define DUK_HOBJECT_CLEAR_EXOTIC_DUKFUNC(h) DUK_HEAPHDR_CLEAR_FLAG_BITS(&(h)->hdr, DUK_HOBJECT_FLAG_EXOTIC_DUKFUNC) +#define DUK_HOBJECT_CLEAR_EXOTIC_PROXYOBJ(h) DUK_HEAPHDR_CLEAR_FLAG_BITS(&(h)->hdr, DUK_HOBJECT_FLAG_EXOTIC_PROXYOBJ) + +/* flags used for property attributes in duk_propdesc and packed flags */ +#define DUK_PROPDESC_FLAG_WRITABLE (1 << 0) /* E5 Section 8.6.1 */ +#define DUK_PROPDESC_FLAG_ENUMERABLE (1 << 1) /* E5 Section 8.6.1 */ +#define DUK_PROPDESC_FLAG_CONFIGURABLE (1 << 2) /* E5 Section 8.6.1 */ +#define DUK_PROPDESC_FLAG_ACCESSOR (1 << 3) /* accessor */ +#define DUK_PROPDESC_FLAG_VIRTUAL (1 << 4) /* property is virtual: used in duk_propdesc, never stored + * (used by e.g. buffer virtual properties) + */ +#define DUK_PROPDESC_FLAGS_MASK (DUK_PROPDESC_FLAG_WRITABLE | \ + DUK_PROPDESC_FLAG_ENUMERABLE | \ + DUK_PROPDESC_FLAG_CONFIGURABLE | \ + DUK_PROPDESC_FLAG_ACCESSOR) + +/* additional flags which are passed in the same flags argument as property + * flags but are not stored in object properties. + */ +#define DUK_PROPDESC_FLAG_NO_OVERWRITE (1 << 4) /* internal define property: skip write silently if exists */ + +/* convenience */ +#define DUK_PROPDESC_FLAGS_NONE 0 +#define DUK_PROPDESC_FLAGS_W (DUK_PROPDESC_FLAG_WRITABLE) +#define DUK_PROPDESC_FLAGS_E (DUK_PROPDESC_FLAG_ENUMERABLE) +#define DUK_PROPDESC_FLAGS_C (DUK_PROPDESC_FLAG_CONFIGURABLE) +#define DUK_PROPDESC_FLAGS_WE (DUK_PROPDESC_FLAG_WRITABLE | DUK_PROPDESC_FLAG_ENUMERABLE) +#define DUK_PROPDESC_FLAGS_WC (DUK_PROPDESC_FLAG_WRITABLE | DUK_PROPDESC_FLAG_CONFIGURABLE) +#define DUK_PROPDESC_FLAGS_EC (DUK_PROPDESC_FLAG_ENUMERABLE | DUK_PROPDESC_FLAG_CONFIGURABLE) +#define DUK_PROPDESC_FLAGS_WEC (DUK_PROPDESC_FLAG_WRITABLE | \ + DUK_PROPDESC_FLAG_ENUMERABLE | \ + DUK_PROPDESC_FLAG_CONFIGURABLE) + +/* flags for duk_hobject_get_own_propdesc() and variants */ +#define DUK_GETDESC_FLAG_PUSH_VALUE (1 << 0) /* push value to stack */ +#define DUK_GETDESC_FLAG_IGNORE_PROTOLOOP (1 << 1) /* don't throw for prototype loop */ + +/* + * Macro for object validity check + * + * Assert for currently guaranteed relations between flags, for instance. + */ + +#define DUK_ASSERT_HOBJECT_VALID(h) do { \ + DUK_ASSERT((h) != NULL); \ + DUK_ASSERT(!DUK_HOBJECT_IS_CALLABLE((h)) || \ + DUK_HOBJECT_GET_CLASS_NUMBER((h)) == DUK_HOBJECT_CLASS_FUNCTION); \ + DUK_ASSERT(!DUK_HOBJECT_IS_BUFFEROBJECT((h)) || \ + (DUK_HOBJECT_GET_CLASS_NUMBER((h)) == DUK_HOBJECT_CLASS_BUFFER || \ + DUK_HOBJECT_GET_CLASS_NUMBER((h)) == DUK_HOBJECT_CLASS_ARRAYBUFFER || \ + DUK_HOBJECT_GET_CLASS_NUMBER((h)) == DUK_HOBJECT_CLASS_DATAVIEW || \ + DUK_HOBJECT_GET_CLASS_NUMBER((h)) == DUK_HOBJECT_CLASS_INT8ARRAY || \ + DUK_HOBJECT_GET_CLASS_NUMBER((h)) == DUK_HOBJECT_CLASS_UINT8ARRAY || \ + DUK_HOBJECT_GET_CLASS_NUMBER((h)) == DUK_HOBJECT_CLASS_UINT8CLAMPEDARRAY || \ + DUK_HOBJECT_GET_CLASS_NUMBER((h)) == DUK_HOBJECT_CLASS_INT16ARRAY || \ + DUK_HOBJECT_GET_CLASS_NUMBER((h)) == DUK_HOBJECT_CLASS_UINT16ARRAY || \ + DUK_HOBJECT_GET_CLASS_NUMBER((h)) == DUK_HOBJECT_CLASS_INT32ARRAY || \ + DUK_HOBJECT_GET_CLASS_NUMBER((h)) == DUK_HOBJECT_CLASS_UINT32ARRAY || \ + DUK_HOBJECT_GET_CLASS_NUMBER((h)) == DUK_HOBJECT_CLASS_FLOAT32ARRAY || \ + DUK_HOBJECT_GET_CLASS_NUMBER((h)) == DUK_HOBJECT_CLASS_FLOAT64ARRAY)); \ + } while (0) + +/* + * Macros to access the 'props' allocation. + */ + +#if defined(DUK_USE_HEAPPTR16) +#define DUK_HOBJECT_GET_PROPS(heap,h) \ + ((duk_uint8_t *) DUK_USE_HEAPPTR_DEC16((heap)->heap_udata, ((duk_heaphdr *) (h))->h_extra16)) +#define DUK_HOBJECT_SET_PROPS(heap,h,x) do { \ + ((duk_heaphdr *) (h))->h_extra16 = DUK_USE_HEAPPTR_ENC16((heap)->heap_udata, (void *) (x)); \ + } while (0) +#else +#define DUK_HOBJECT_GET_PROPS(heap,h) \ + ((h)->props) +#define DUK_HOBJECT_SET_PROPS(heap,h,x) do { \ + (h)->props = (duk_uint8_t *) (x); \ + } while (0) +#endif + +#if defined(DUK_USE_HOBJECT_LAYOUT_1) +/* LAYOUT 1 */ +#define DUK_HOBJECT_E_GET_KEY_BASE(heap,h) \ + ((duk_hstring **) (void *) ( \ + DUK_HOBJECT_GET_PROPS((heap), (h)) \ + )) +#define DUK_HOBJECT_E_GET_VALUE_BASE(heap,h) \ + ((duk_propvalue *) (void *) ( \ + DUK_HOBJECT_GET_PROPS((heap), (h)) + \ + DUK_HOBJECT_GET_ESIZE((h)) * sizeof(duk_hstring *) \ + )) +#define DUK_HOBJECT_E_GET_FLAGS_BASE(heap,h) \ + ((duk_uint8_t *) (void *) ( \ + DUK_HOBJECT_GET_PROPS((heap), (h)) + DUK_HOBJECT_GET_ESIZE((h)) * (sizeof(duk_hstring *) + sizeof(duk_propvalue)) \ + )) +#define DUK_HOBJECT_A_GET_BASE(heap,h) \ + ((duk_tval *) (void *) ( \ + DUK_HOBJECT_GET_PROPS((heap), (h)) + \ + DUK_HOBJECT_GET_ESIZE((h)) * (sizeof(duk_hstring *) + sizeof(duk_propvalue) + sizeof(duk_uint8_t)) \ + )) +#define DUK_HOBJECT_H_GET_BASE(heap,h) \ + ((duk_uint32_t *) (void *) ( \ + DUK_HOBJECT_GET_PROPS((heap), (h)) + \ + DUK_HOBJECT_GET_ESIZE((h)) * (sizeof(duk_hstring *) + sizeof(duk_propvalue) + sizeof(duk_uint8_t)) + \ + DUK_HOBJECT_GET_ASIZE((h)) * sizeof(duk_tval) \ + )) +#define DUK_HOBJECT_P_COMPUTE_SIZE(n_ent,n_arr,n_hash) \ + ( \ + (n_ent) * (sizeof(duk_hstring *) + sizeof(duk_propvalue) + sizeof(duk_uint8_t)) + \ + (n_arr) * sizeof(duk_tval) + \ + (n_hash) * sizeof(duk_uint32_t) \ + ) +#define DUK_HOBJECT_P_SET_REALLOC_PTRS(p_base,set_e_k,set_e_pv,set_e_f,set_a,set_h,n_ent,n_arr,n_hash) do { \ + (set_e_k) = (duk_hstring **) (void *) (p_base); \ + (set_e_pv) = (duk_propvalue *) (void *) ((set_e_k) + (n_ent)); \ + (set_e_f) = (duk_uint8_t *) (void *) ((set_e_pv) + (n_ent)); \ + (set_a) = (duk_tval *) (void *) ((set_e_f) + (n_ent)); \ + (set_h) = (duk_uint32_t *) (void *) ((set_a) + (n_arr)); \ + } while (0) +#elif defined(DUK_USE_HOBJECT_LAYOUT_2) +/* LAYOUT 2 */ +#if (DUK_USE_ALIGN_BY == 4) +#define DUK_HOBJECT_E_FLAG_PADDING(e_sz) ((4 - (e_sz)) & 0x03) +#elif (DUK_USE_ALIGN_BY == 8) +#define DUK_HOBJECT_E_FLAG_PADDING(e_sz) ((8 - (e_sz)) & 0x07) +#elif (DUK_USE_ALIGN_BY == 1) +#define DUK_HOBJECT_E_FLAG_PADDING(e_sz) 0 +#else +#error invalid DUK_USE_ALIGN_BY +#endif +#define DUK_HOBJECT_E_GET_KEY_BASE(heap,h) \ + ((duk_hstring **) (void *) ( \ + DUK_HOBJECT_GET_PROPS((heap), (h)) + \ + DUK_HOBJECT_GET_ESIZE((h)) * sizeof(duk_propvalue) \ + )) +#define DUK_HOBJECT_E_GET_VALUE_BASE(heap,h) \ + ((duk_propvalue *) (void *) ( \ + DUK_HOBJECT_GET_PROPS((heap), (h)) \ + )) +#define DUK_HOBJECT_E_GET_FLAGS_BASE(heap,h) \ + ((duk_uint8_t *) (void *) ( \ + DUK_HOBJECT_GET_PROPS((heap), (h)) + DUK_HOBJECT_GET_ESIZE((h)) * (sizeof(duk_hstring *) + sizeof(duk_propvalue)) \ + )) +#define DUK_HOBJECT_A_GET_BASE(heap,h) \ + ((duk_tval *) (void *) ( \ + DUK_HOBJECT_GET_PROPS((heap), (h)) + \ + DUK_HOBJECT_GET_ESIZE((h)) * (sizeof(duk_hstring *) + sizeof(duk_propvalue) + sizeof(duk_uint8_t)) + \ + DUK_HOBJECT_E_FLAG_PADDING(DUK_HOBJECT_GET_ESIZE((h))) \ + )) +#define DUK_HOBJECT_H_GET_BASE(heap,h) \ + ((duk_uint32_t *) (void *) ( \ + DUK_HOBJECT_GET_PROPS((heap), (h)) + \ + DUK_HOBJECT_GET_ESIZE((h)) * (sizeof(duk_hstring *) + sizeof(duk_propvalue) + sizeof(duk_uint8_t)) + \ + DUK_HOBJECT_E_FLAG_PADDING(DUK_HOBJECT_GET_ESIZE((h))) + \ + DUK_HOBJECT_GET_ASIZE((h)) * sizeof(duk_tval) \ + )) +#define DUK_HOBJECT_P_COMPUTE_SIZE(n_ent,n_arr,n_hash) \ + ( \ + (n_ent) * (sizeof(duk_hstring *) + sizeof(duk_propvalue) + sizeof(duk_uint8_t)) + \ + DUK_HOBJECT_E_FLAG_PADDING((n_ent)) + \ + (n_arr) * sizeof(duk_tval) + \ + (n_hash) * sizeof(duk_uint32_t) \ + ) +#define DUK_HOBJECT_P_SET_REALLOC_PTRS(p_base,set_e_k,set_e_pv,set_e_f,set_a,set_h,n_ent,n_arr,n_hash) do { \ + (set_e_pv) = (duk_propvalue *) (void *) (p_base); \ + (set_e_k) = (duk_hstring **) (void *) ((set_e_pv) + (n_ent)); \ + (set_e_f) = (duk_uint8_t *) (void *) ((set_e_k) + (n_ent)); \ + (set_a) = (duk_tval *) (void *) (((duk_uint8_t *) (set_e_f)) + \ + sizeof(duk_uint8_t) * (n_ent) + \ + DUK_HOBJECT_E_FLAG_PADDING((n_ent))); \ + (set_h) = (duk_uint32_t *) (void *) ((set_a) + (n_arr)); \ + } while (0) +#elif defined(DUK_USE_HOBJECT_LAYOUT_3) +/* LAYOUT 3 */ +#define DUK_HOBJECT_E_GET_KEY_BASE(heap,h) \ + ((duk_hstring **) (void *) ( \ + DUK_HOBJECT_GET_PROPS((heap), (h)) + \ + DUK_HOBJECT_GET_ESIZE((h)) * sizeof(duk_propvalue) + \ + DUK_HOBJECT_GET_ASIZE((h)) * sizeof(duk_tval) \ + )) +#define DUK_HOBJECT_E_GET_VALUE_BASE(heap,h) \ + ((duk_propvalue *) (void *) ( \ + DUK_HOBJECT_GET_PROPS((heap), (h)) \ + )) +#define DUK_HOBJECT_E_GET_FLAGS_BASE(heap,h) \ + ((duk_uint8_t *) (void *) ( \ + DUK_HOBJECT_GET_PROPS((heap), (h)) + \ + DUK_HOBJECT_GET_ESIZE((h)) * (sizeof(duk_propvalue) + sizeof(duk_hstring *)) + \ + DUK_HOBJECT_GET_ASIZE((h)) * sizeof(duk_tval) + \ + DUK_HOBJECT_GET_HSIZE((h)) * sizeof(duk_uint32_t) \ + )) +#define DUK_HOBJECT_A_GET_BASE(heap,h) \ + ((duk_tval *) (void *) ( \ + DUK_HOBJECT_GET_PROPS((heap), (h)) + \ + DUK_HOBJECT_GET_ESIZE((h)) * sizeof(duk_propvalue) \ + )) +#define DUK_HOBJECT_H_GET_BASE(heap,h) \ + ((duk_uint32_t *) (void *) ( \ + DUK_HOBJECT_GET_PROPS((heap), (h)) + \ + DUK_HOBJECT_GET_ESIZE((h)) * (sizeof(duk_propvalue) + sizeof(duk_hstring *)) + \ + DUK_HOBJECT_GET_ASIZE((h)) * sizeof(duk_tval) \ + )) +#define DUK_HOBJECT_P_COMPUTE_SIZE(n_ent,n_arr,n_hash) \ + ( \ + (n_ent) * (sizeof(duk_propvalue) + sizeof(duk_hstring *) + sizeof(duk_uint8_t)) + \ + (n_arr) * sizeof(duk_tval) + \ + (n_hash) * sizeof(duk_uint32_t) \ + ) +#define DUK_HOBJECT_P_SET_REALLOC_PTRS(p_base,set_e_k,set_e_pv,set_e_f,set_a,set_h,n_ent,n_arr,n_hash) do { \ + (set_e_pv) = (duk_propvalue *) (void *) (p_base); \ + (set_a) = (duk_tval *) (void *) ((set_e_pv) + (n_ent)); \ + (set_e_k) = (duk_hstring **) (void *) ((set_a) + (n_arr)); \ + (set_h) = (duk_uint32_t *) (void *) ((set_e_k) + (n_ent)); \ + (set_e_f) = (duk_uint8_t *) (void *) ((set_h) + (n_hash)); \ + } while (0) +#else +#error invalid hobject layout defines +#endif /* hobject property layout */ + +#define DUK_HOBJECT_P_ALLOC_SIZE(h) \ + DUK_HOBJECT_P_COMPUTE_SIZE(DUK_HOBJECT_GET_ESIZE((h)), DUK_HOBJECT_GET_ASIZE((h)), DUK_HOBJECT_GET_HSIZE((h))) + +#define DUK_HOBJECT_E_GET_KEY(heap,h,i) (DUK_HOBJECT_E_GET_KEY_BASE((heap), (h))[(i)]) +#define DUK_HOBJECT_E_GET_KEY_PTR(heap,h,i) (&DUK_HOBJECT_E_GET_KEY_BASE((heap), (h))[(i)]) +#define DUK_HOBJECT_E_GET_VALUE(heap,h,i) (DUK_HOBJECT_E_GET_VALUE_BASE((heap), (h))[(i)]) +#define DUK_HOBJECT_E_GET_VALUE_PTR(heap,h,i) (&DUK_HOBJECT_E_GET_VALUE_BASE((heap), (h))[(i)]) +#define DUK_HOBJECT_E_GET_VALUE_TVAL(heap,h,i) (DUK_HOBJECT_E_GET_VALUE((heap), (h), (i)).v) +#define DUK_HOBJECT_E_GET_VALUE_TVAL_PTR(heap,h,i) (&DUK_HOBJECT_E_GET_VALUE((heap), (h), (i)).v) +#define DUK_HOBJECT_E_GET_VALUE_GETTER(heap,h,i) (DUK_HOBJECT_E_GET_VALUE((heap), (h), (i)).a.get) +#define DUK_HOBJECT_E_GET_VALUE_GETTER_PTR(heap,h,i) (&DUK_HOBJECT_E_GET_VALUE((heap), (h), (i)).a.get) +#define DUK_HOBJECT_E_GET_VALUE_SETTER(heap,h,i) (DUK_HOBJECT_E_GET_VALUE((heap), (h), (i)).a.set) +#define DUK_HOBJECT_E_GET_VALUE_SETTER_PTR(heap,h,i) (&DUK_HOBJECT_E_GET_VALUE((heap), (h), (i)).a.set) +#define DUK_HOBJECT_E_GET_FLAGS(heap,h,i) (DUK_HOBJECT_E_GET_FLAGS_BASE((heap), (h))[(i)]) +#define DUK_HOBJECT_E_GET_FLAGS_PTR(heap,h,i) (&DUK_HOBJECT_E_GET_FLAGS_BASE((heap), (h))[(i)]) +#define DUK_HOBJECT_A_GET_VALUE(heap,h,i) (DUK_HOBJECT_A_GET_BASE((heap), (h))[(i)]) +#define DUK_HOBJECT_A_GET_VALUE_PTR(heap,h,i) (&DUK_HOBJECT_A_GET_BASE((heap), (h))[(i)]) +#define DUK_HOBJECT_H_GET_INDEX(heap,h,i) (DUK_HOBJECT_H_GET_BASE((heap), (h))[(i)]) +#define DUK_HOBJECT_H_GET_INDEX_PTR(heap,h,i) (&DUK_HOBJECT_H_GET_BASE((heap), (h))[(i)]) + +#define DUK_HOBJECT_E_SET_KEY(heap,h,i,k) do { \ + DUK_HOBJECT_E_GET_KEY((heap), (h), (i)) = (k); \ + } while (0) +#define DUK_HOBJECT_E_SET_VALUE(heap,h,i,v) do { \ + DUK_HOBJECT_E_GET_VALUE((heap), (h), (i)) = (v); \ + } while (0) +#define DUK_HOBJECT_E_SET_VALUE_TVAL(heap,h,i,v) do { \ + DUK_HOBJECT_E_GET_VALUE((heap), (h), (i)).v = (v); \ + } while (0) +#define DUK_HOBJECT_E_SET_VALUE_GETTER(heap,h,i,v) do { \ + DUK_HOBJECT_E_GET_VALUE((heap), (h), (i)).a.get = (v); \ + } while (0) +#define DUK_HOBJECT_E_SET_VALUE_SETTER(heap,h,i,v) do { \ + DUK_HOBJECT_E_GET_VALUE((heap), (h), (i)).a.set = (v); \ + } while (0) +#define DUK_HOBJECT_E_SET_FLAGS(heap,h,i,f) do { \ + DUK_HOBJECT_E_GET_FLAGS((heap), (h), (i)) = (duk_uint8_t) (f); \ + } while (0) +#define DUK_HOBJECT_A_SET_VALUE(heap,h,i,v) do { \ + DUK_HOBJECT_A_GET_VALUE((heap), (h), (i)) = (v); \ + } while (0) +#define DUK_HOBJECT_A_SET_VALUE_TVAL(heap,h,i,v) \ + DUK_HOBJECT_A_SET_VALUE((heap), (h), (i), (v)) /* alias for above */ +#define DUK_HOBJECT_H_SET_INDEX(heap,h,i,v) do { \ + DUK_HOBJECT_H_GET_INDEX((heap), (h), (i)) = (v); \ + } while (0) + +#define DUK_HOBJECT_E_SET_FLAG_BITS(heap,h,i,mask) do { \ + DUK_HOBJECT_E_GET_FLAGS_BASE((heap), (h))[(i)] |= (mask); \ + } while (0) + +#define DUK_HOBJECT_E_CLEAR_FLAG_BITS(heap,h,i,mask) do { \ + DUK_HOBJECT_E_GET_FLAGS_BASE((heap), (h))[(i)] &= ~(mask); \ + } while (0) + +#define DUK_HOBJECT_E_SLOT_IS_WRITABLE(heap,h,i) ((DUK_HOBJECT_E_GET_FLAGS((heap), (h), (i)) & DUK_PROPDESC_FLAG_WRITABLE) != 0) +#define DUK_HOBJECT_E_SLOT_IS_ENUMERABLE(heap,h,i) ((DUK_HOBJECT_E_GET_FLAGS((heap), (h), (i)) & DUK_PROPDESC_FLAG_ENUMERABLE) != 0) +#define DUK_HOBJECT_E_SLOT_IS_CONFIGURABLE(heap,h,i) ((DUK_HOBJECT_E_GET_FLAGS((heap), (h), (i)) & DUK_PROPDESC_FLAG_CONFIGURABLE) != 0) +#define DUK_HOBJECT_E_SLOT_IS_ACCESSOR(heap,h,i) ((DUK_HOBJECT_E_GET_FLAGS((heap), (h), (i)) & DUK_PROPDESC_FLAG_ACCESSOR) != 0) + +#define DUK_HOBJECT_E_SLOT_SET_WRITABLE(heap,h,i) DUK_HOBJECT_E_SET_FLAG_BITS((heap), (h), (i),DUK_PROPDESC_FLAG_WRITABLE) +#define DUK_HOBJECT_E_SLOT_SET_ENUMERABLE(heap,h,i) DUK_HOBJECT_E_SET_FLAG_BITS((heap), (h), (i),DUK_PROPDESC_FLAG_ENUMERABLE) +#define DUK_HOBJECT_E_SLOT_SET_CONFIGURABLE(heap,h,i) DUK_HOBJECT_E_SET_FLAG_BITS((heap), (h), (i),DUK_PROPDESC_FLAG_CONFIGURABLE) +#define DUK_HOBJECT_E_SLOT_SET_ACCESSOR(heap,h,i) DUK_HOBJECT_E_SET_FLAG_BITS((heap), (h), (i),DUK_PROPDESC_FLAG_ACCESSOR) + +#define DUK_HOBJECT_E_SLOT_CLEAR_WRITABLE(heap,h,i) DUK_HOBJECT_E_CLEAR_FLAG_BITS((heap), (h), (i),DUK_PROPDESC_FLAG_WRITABLE) +#define DUK_HOBJECT_E_SLOT_CLEAR_ENUMERABLE(heap,h,i) DUK_HOBJECT_E_CLEAR_FLAG_BITS((heap), (h), (i),DUK_PROPDESC_FLAG_ENUMERABLE) +#define DUK_HOBJECT_E_SLOT_CLEAR_CONFIGURABLE(heap,h,i) DUK_HOBJECT_E_CLEAR_FLAG_BITS((heap), (h), (i),DUK_PROPDESC_FLAG_CONFIGURABLE) +#define DUK_HOBJECT_E_SLOT_CLEAR_ACCESSOR(heap,h,i) DUK_HOBJECT_E_CLEAR_FLAG_BITS((heap), (h), (i),DUK_PROPDESC_FLAG_ACCESSOR) + +#define DUK_PROPDESC_IS_WRITABLE(p) (((p)->flags & DUK_PROPDESC_FLAG_WRITABLE) != 0) +#define DUK_PROPDESC_IS_ENUMERABLE(p) (((p)->flags & DUK_PROPDESC_FLAG_ENUMERABLE) != 0) +#define DUK_PROPDESC_IS_CONFIGURABLE(p) (((p)->flags & DUK_PROPDESC_FLAG_CONFIGURABLE) != 0) +#define DUK_PROPDESC_IS_ACCESSOR(p) (((p)->flags & DUK_PROPDESC_FLAG_ACCESSOR) != 0) + +#define DUK_HOBJECT_HASHIDX_UNUSED 0xffffffffUL +#define DUK_HOBJECT_HASHIDX_DELETED 0xfffffffeUL + +/* + * Macros for accessing size fields + */ + +#if defined(DUK_USE_OBJSIZES16) +#define DUK_HOBJECT_GET_ESIZE(h) ((h)->e_size16) +#define DUK_HOBJECT_SET_ESIZE(h,v) do { (h)->e_size16 = (v); } while (0) +#define DUK_HOBJECT_GET_ENEXT(h) ((h)->e_next16) +#define DUK_HOBJECT_SET_ENEXT(h,v) do { (h)->e_next16 = (v); } while (0) +#define DUK_HOBJECT_POSTINC_ENEXT(h) ((h)->e_next16++) +#define DUK_HOBJECT_GET_ASIZE(h) ((h)->a_size16) +#define DUK_HOBJECT_SET_ASIZE(h,v) do { (h)->a_size16 = (v); } while (0) +#if defined(DUK_USE_HOBJECT_HASH_PART) +#define DUK_HOBJECT_GET_HSIZE(h) ((h)->h_size16) +#define DUK_HOBJECT_SET_HSIZE(h,v) do { (h)->h_size16 = (v); } while (0) +#else +#define DUK_HOBJECT_GET_HSIZE(h) 0 +#define DUK_HOBJECT_SET_HSIZE(h,v) do { DUK_ASSERT((v) == 0); } while (0) +#endif +#else +#define DUK_HOBJECT_GET_ESIZE(h) ((h)->e_size) +#define DUK_HOBJECT_SET_ESIZE(h,v) do { (h)->e_size = (v); } while (0) +#define DUK_HOBJECT_GET_ENEXT(h) ((h)->e_next) +#define DUK_HOBJECT_SET_ENEXT(h,v) do { (h)->e_next = (v); } while (0) +#define DUK_HOBJECT_POSTINC_ENEXT(h) ((h)->e_next++) +#define DUK_HOBJECT_GET_ASIZE(h) ((h)->a_size) +#define DUK_HOBJECT_SET_ASIZE(h,v) do { (h)->a_size = (v); } while (0) +#if defined(DUK_USE_HOBJECT_HASH_PART) +#define DUK_HOBJECT_GET_HSIZE(h) ((h)->h_size) +#define DUK_HOBJECT_SET_HSIZE(h,v) do { (h)->h_size = (v); } while (0) +#else +#define DUK_HOBJECT_GET_HSIZE(h) 0 +#define DUK_HOBJECT_SET_HSIZE(h,v) do { DUK_ASSERT((v) == 0); } while (0) +#endif +#endif + +/* + * Misc + */ + +/* Maximum prototype traversal depth. Sanity limit which handles e.g. + * prototype loops (even complex ones like 1->2->3->4->2->3->4->2->3->4). + */ +#define DUK_HOBJECT_PROTOTYPE_CHAIN_SANITY 10000L + +/* Maximum traversal depth for "bound function" chains. */ +#define DUK_HOBJECT_BOUND_CHAIN_SANITY 10000L + +/* + * Ecmascript [[Class]] + */ + +/* range check not necessary because all 4-bit values are mapped */ +#define DUK_HOBJECT_CLASS_NUMBER_TO_STRIDX(n) duk_class_number_to_stridx[(n)] + +#define DUK_HOBJECT_GET_CLASS_STRING(heap,h) \ + DUK_HEAP_GET_STRING( \ + (heap), \ + DUK_HOBJECT_CLASS_NUMBER_TO_STRIDX(DUK_HOBJECT_GET_CLASS_NUMBER((h))) \ + ) + +/* + * Macros for property handling + */ + +#if defined(DUK_USE_HEAPPTR16) +#define DUK_HOBJECT_GET_PROTOTYPE(heap,h) \ + ((duk_hobject *) DUK_USE_HEAPPTR_DEC16((heap)->heap_udata, (h)->prototype16)) +#define DUK_HOBJECT_SET_PROTOTYPE(heap,h,x) do { \ + (h)->prototype16 = DUK_USE_HEAPPTR_ENC16((heap)->heap_udata, (void *) (x)); \ + } while (0) +#else +#define DUK_HOBJECT_GET_PROTOTYPE(heap,h) \ + ((h)->prototype) +#define DUK_HOBJECT_SET_PROTOTYPE(heap,h,x) do { \ + (h)->prototype = (x); \ + } while (0) +#endif + +/* note: this updates refcounts */ +#define DUK_HOBJECT_SET_PROTOTYPE_UPDREF(thr,h,p) duk_hobject_set_prototype_updref((thr), (h), (p)) + +/* + * Resizing and hash behavior + */ + +/* Sanity limit on max number of properties (allocated, not necessarily used). + * This is somewhat arbitrary, but if we're close to 2**32 properties some + * algorithms will fail (e.g. hash size selection, next prime selection). + * Also, we use negative array/entry table indices to indicate 'not found', + * so anything above 0x80000000 will cause trouble now. + */ +#if defined(DUK_USE_OBJSIZES16) +#define DUK_HOBJECT_MAX_PROPERTIES 0x0000ffffUL +#else +#define DUK_HOBJECT_MAX_PROPERTIES 0x7fffffffUL /* 2**31-1 ~= 2G properties */ +#endif + +/* higher value conserves memory; also note that linear scan is cache friendly */ +#define DUK_HOBJECT_E_USE_HASH_LIMIT 32 + +/* hash size relative to entries size: for value X, approx. hash_prime(e_size + e_size / X) */ +#define DUK_HOBJECT_H_SIZE_DIVISOR 4 /* hash size approx. 1.25 times entries size */ + +/* if new_size < L * old_size, resize without abandon check; L = 3-bit fixed point, e.g. 9 -> 9/8 = 112.5% */ +#define DUK_HOBJECT_A_FAST_RESIZE_LIMIT 9 /* 112.5%, i.e. new size less than 12.5% higher -> fast resize */ + +/* if density < L, abandon array part, L = 3-bit fixed point, e.g. 2 -> 2/8 = 25% */ +/* limit is quite low: one array entry is 8 bytes, one normal entry is 4+1+8+4 = 17 bytes (with hash entry) */ +#define DUK_HOBJECT_A_ABANDON_LIMIT 2 /* 25%, i.e. less than 25% used -> abandon */ + +/* internal align target for props allocation, must be 2*n for some n */ +#if (DUK_USE_ALIGN_BY == 4) +#define DUK_HOBJECT_ALIGN_TARGET 4 +#elif (DUK_USE_ALIGN_BY == 8) +#define DUK_HOBJECT_ALIGN_TARGET 8 +#elif (DUK_USE_ALIGN_BY == 1) +#define DUK_HOBJECT_ALIGN_TARGET 1 +#else +#error invalid DUK_USE_ALIGN_BY +#endif + +/* controls for minimum entry part growth */ +#define DUK_HOBJECT_E_MIN_GROW_ADD 16 +#define DUK_HOBJECT_E_MIN_GROW_DIVISOR 8 /* 2^3 -> 1/8 = 12.5% min growth */ + +/* controls for minimum array part growth */ +#define DUK_HOBJECT_A_MIN_GROW_ADD 16 +#define DUK_HOBJECT_A_MIN_GROW_DIVISOR 8 /* 2^3 -> 1/8 = 12.5% min growth */ + +/* probe sequence */ +#define DUK_HOBJECT_HASH_INITIAL(hash,h_size) ((hash) % (h_size)) +#define DUK_HOBJECT_HASH_PROBE_STEP(hash) DUK_UTIL_GET_HASH_PROBE_STEP((hash)) + +/* + * PC-to-line constants + */ + +#define DUK_PC2LINE_SKIP 64 + +/* maximum length for a SKIP-1 diffstream: 35 bits per entry, rounded up to bytes */ +#define DUK_PC2LINE_MAX_DIFF_LENGTH (((DUK_PC2LINE_SKIP - 1) * 35 + 7) / 8) + +/* + * Struct defs + */ + +struct duk_propaccessor { + duk_hobject *get; + duk_hobject *set; +}; + +union duk_propvalue { + /* The get/set pointers could be 16-bit pointer compressed but it + * would make no difference on 32-bit platforms because duk_tval is + * 8 bytes or more anyway. + */ + duk_tval v; + duk_propaccessor a; +}; + +struct duk_propdesc { + /* read-only values 'lifted' for ease of use */ + duk_small_int_t flags; + duk_hobject *get; + duk_hobject *set; + + /* for updating (all are set to < 0 for virtual properties) */ + duk_int_t e_idx; /* prop index in 'entry part', < 0 if not there */ + duk_int_t h_idx; /* prop index in 'hash part', < 0 if not there */ + duk_int_t a_idx; /* prop index in 'array part', < 0 if not there */ +}; + +struct duk_hobject { + duk_heaphdr hdr; + + /* + * 'props' contains {key,value,flags} entries, optional array entries, and + * an optional hash lookup table for non-array entries in a single 'sliced' + * allocation. There are several layout options, which differ slightly in + * generated code size/speed and alignment/padding; duk_features.h selects + * the layout used. + * + * Layout 1 (DUK_USE_HOBJECT_LAYOUT_1): + * + * e_size * sizeof(duk_hstring *) bytes of entry keys (e_next gc reachable) + * e_size * sizeof(duk_propvalue) bytes of entry values (e_next gc reachable) + * e_size * sizeof(duk_uint8_t) bytes of entry flags (e_next gc reachable) + * a_size * sizeof(duk_tval) bytes of (opt) array values (plain only) (all gc reachable) + * h_size * sizeof(duk_uint32_t) bytes of (opt) hash indexes to entries (e_size), + * 0xffffffffUL = unused, 0xfffffffeUL = deleted + * + * Layout 2 (DUK_USE_HOBJECT_LAYOUT_2): + * + * e_size * sizeof(duk_propvalue) bytes of entry values (e_next gc reachable) + * e_size * sizeof(duk_hstring *) bytes of entry keys (e_next gc reachable) + * e_size * sizeof(duk_uint8_t) + pad bytes of entry flags (e_next gc reachable) + * a_size * sizeof(duk_tval) bytes of (opt) array values (plain only) (all gc reachable) + * h_size * sizeof(duk_uint32_t) bytes of (opt) hash indexes to entries (e_size), + * 0xffffffffUL = unused, 0xfffffffeUL = deleted + * + * Layout 3 (DUK_USE_HOBJECT_LAYOUT_3): + * + * e_size * sizeof(duk_propvalue) bytes of entry values (e_next gc reachable) + * a_size * sizeof(duk_tval) bytes of (opt) array values (plain only) (all gc reachable) + * e_size * sizeof(duk_hstring *) bytes of entry keys (e_next gc reachable) + * h_size * sizeof(duk_uint32_t) bytes of (opt) hash indexes to entries (e_size), + * 0xffffffffUL = unused, 0xfffffffeUL = deleted + * e_size * sizeof(duk_uint8_t) bytes of entry flags (e_next gc reachable) + * + * In layout 1, the 'e_next' count is rounded to 4 or 8 on platforms + * requiring 4 or 8 byte alignment. This ensures proper alignment + * for the entries, at the cost of memory footprint. However, it's + * probably preferable to use another layout on such platforms instead. + * + * In layout 2, the key and value parts are swapped to avoid padding + * the key array on platforms requiring alignment by 8. The flags part + * is padded to get alignment for array entries. The 'e_next' count does + * not need to be rounded as in layout 1. + * + * In layout 3, entry values and array values are always aligned properly, + * and assuming pointers are at most 8 bytes, so are the entry keys. Hash + * indices will be properly aligned (assuming pointers are at least 4 bytes). + * Finally, flags don't need additional alignment. This layout provides + * compact allocations without padding (even on platforms with alignment + * requirements) at the cost of a bit slower lookups. + * + * Objects with few keys don't have a hash index; keys are looked up linearly, + * which is cache efficient because the keys are consecutive. Larger objects + * have a hash index part which contains integer indexes to the entries part. + * + * A single allocation reduces memory allocation overhead but requires more + * work when any part needs to be resized. A sliced allocation for entries + * makes linear key matching faster on most platforms (more locality) and + * skimps on flags size (which would be followed by 3 bytes of padding in + * most architectures if entries were placed in a struct). + * + * 'props' also contains internal properties distinguished with a non-BMP + * prefix. Often used properties should be placed early in 'props' whenever + * possible to make accessing them as fast a possible. + */ + +#if defined(DUK_USE_HEAPPTR16) + /* Located in duk_heaphdr h_extra16. Subclasses of duk_hobject (like + * duk_hcompiledfunction) are not free to use h_extra16 for this reason. + */ +#else + duk_uint8_t *props; +#endif + + /* prototype: the only internal property lifted outside 'e' as it is so central */ +#if defined(DUK_USE_HEAPPTR16) + duk_uint16_t prototype16; +#else + duk_hobject *prototype; +#endif + +#if defined(DUK_USE_OBJSIZES16) + duk_uint16_t e_size16; + duk_uint16_t e_next16; + duk_uint16_t a_size16; +#if defined(DUK_USE_HOBJECT_HASH_PART) + duk_uint16_t h_size16; +#endif +#else + duk_uint32_t e_size; /* entry part size */ + duk_uint32_t e_next; /* index for next new key ([0,e_next[ are gc reachable) */ + duk_uint32_t a_size; /* array part size (entirely gc reachable) */ +#if defined(DUK_USE_HOBJECT_HASH_PART) + duk_uint32_t h_size; /* hash part size or 0 if unused */ +#endif +#endif +}; + +/* + * Exposed data + */ + +#if !defined(DUK_SINGLE_FILE) +DUK_INTERNAL_DECL duk_uint8_t duk_class_number_to_stridx[32]; +#endif /* !DUK_SINGLE_FILE */ + +/* + * Prototypes + */ + +/* alloc and init */ +DUK_INTERNAL_DECL duk_hobject *duk_hobject_alloc(duk_heap *heap, duk_uint_t hobject_flags); +#if 0 /* unused */ +DUK_INTERNAL_DECL duk_hobject *duk_hobject_alloc_checked(duk_hthread *thr, duk_uint_t hobject_flags); +#endif +DUK_INTERNAL_DECL duk_hcompiledfunction *duk_hcompiledfunction_alloc(duk_heap *heap, duk_uint_t hobject_flags); +DUK_INTERNAL_DECL duk_hnativefunction *duk_hnativefunction_alloc(duk_heap *heap, duk_uint_t hobject_flags); +DUK_INTERNAL duk_hbufferobject *duk_hbufferobject_alloc(duk_heap *heap, duk_uint_t hobject_flags); +DUK_INTERNAL_DECL duk_hthread *duk_hthread_alloc(duk_heap *heap, duk_uint_t hobject_flags); + +/* low-level property functions */ +DUK_INTERNAL_DECL void duk_hobject_find_existing_entry(duk_heap *heap, duk_hobject *obj, duk_hstring *key, duk_int_t *e_idx, duk_int_t *h_idx); +DUK_INTERNAL_DECL duk_tval *duk_hobject_find_existing_entry_tval_ptr(duk_heap *heap, duk_hobject *obj, duk_hstring *key); +DUK_INTERNAL_DECL duk_tval *duk_hobject_find_existing_entry_tval_ptr_and_attrs(duk_heap *heap, duk_hobject *obj, duk_hstring *key, duk_int_t *out_attrs); +DUK_INTERNAL_DECL duk_tval *duk_hobject_find_existing_array_entry_tval_ptr(duk_heap *heap, duk_hobject *obj, duk_uarridx_t i); +DUK_INTERNAL_DECL duk_bool_t duk_hobject_get_own_propdesc(duk_hthread *thr, duk_hobject *obj, duk_hstring *key, duk_propdesc *out_desc, duk_small_uint_t flags); + +/* XXX: when optimizing for guaranteed property slots, use a guaranteed + * slot for internal value; this call can then access it directly. + */ +#define duk_hobject_get_internal_value_tval_ptr(heap,obj) \ + duk_hobject_find_existing_entry_tval_ptr((heap), (obj), DUK_HEAP_STRING_INT_VALUE((heap))) + +/* core property functions */ +DUK_INTERNAL_DECL duk_bool_t duk_hobject_getprop(duk_hthread *thr, duk_tval *tv_obj, duk_tval *tv_key); +DUK_INTERNAL_DECL duk_bool_t duk_hobject_putprop(duk_hthread *thr, duk_tval *tv_obj, duk_tval *tv_key, duk_tval *tv_val, duk_bool_t throw_flag); +DUK_INTERNAL_DECL duk_bool_t duk_hobject_delprop(duk_hthread *thr, duk_tval *tv_obj, duk_tval *tv_key, duk_bool_t throw_flag); +DUK_INTERNAL_DECL duk_bool_t duk_hobject_hasprop(duk_hthread *thr, duk_tval *tv_obj, duk_tval *tv_key); + +/* internal property functions */ +#define DUK_DELPROP_FLAG_THROW (1 << 0) +#define DUK_DELPROP_FLAG_FORCE (1 << 1) +DUK_INTERNAL_DECL duk_bool_t duk_hobject_delprop_raw(duk_hthread *thr, duk_hobject *obj, duk_hstring *key, duk_small_uint_t flags); +DUK_INTERNAL_DECL duk_bool_t duk_hobject_hasprop_raw(duk_hthread *thr, duk_hobject *obj, duk_hstring *key); +DUK_INTERNAL_DECL void duk_hobject_define_property_internal(duk_hthread *thr, duk_hobject *obj, duk_hstring *key, duk_small_uint_t flags); +DUK_INTERNAL_DECL void duk_hobject_define_property_internal_arridx(duk_hthread *thr, duk_hobject *obj, duk_uarridx_t arr_idx, duk_small_uint_t flags); +DUK_INTERNAL_DECL void duk_hobject_define_accessor_internal(duk_hthread *thr, duk_hobject *obj, duk_hstring *key, duk_hobject *getter, duk_hobject *setter, duk_small_uint_t propflags); +DUK_INTERNAL_DECL void duk_hobject_set_length(duk_hthread *thr, duk_hobject *obj, duk_uint32_t length); /* XXX: duk_uarridx_t? */ +DUK_INTERNAL_DECL void duk_hobject_set_length_zero(duk_hthread *thr, duk_hobject *obj); +DUK_INTERNAL_DECL duk_uint32_t duk_hobject_get_length(duk_hthread *thr, duk_hobject *obj); /* XXX: duk_uarridx_t? */ + +/* helpers for defineProperty() and defineProperties() */ +DUK_INTERNAL_DECL +void duk_hobject_prepare_property_descriptor(duk_context *ctx, + duk_idx_t idx_in, + duk_uint_t *out_defprop_flags, + duk_idx_t *out_idx_value, + duk_hobject **out_getter, + duk_hobject **out_setter); +DUK_INTERNAL_DECL +void duk_hobject_define_property_helper(duk_context *ctx, + duk_uint_t defprop_flags, + duk_hobject *obj, + duk_hstring *key, + duk_idx_t idx_value, + duk_hobject *get, + duk_hobject *set); + +/* Object built-in methods */ +DUK_INTERNAL_DECL duk_ret_t duk_hobject_object_get_own_property_descriptor(duk_context *ctx); +DUK_INTERNAL_DECL void duk_hobject_object_seal_freeze_helper(duk_hthread *thr, duk_hobject *obj, duk_bool_t is_freeze); +DUK_INTERNAL_DECL duk_bool_t duk_hobject_object_is_sealed_frozen_helper(duk_hthread *thr, duk_hobject *obj, duk_bool_t is_frozen); +DUK_INTERNAL_DECL duk_bool_t duk_hobject_object_ownprop_helper(duk_context *ctx, duk_small_uint_t required_desc_flags); + +/* internal properties */ +DUK_INTERNAL_DECL duk_bool_t duk_hobject_get_internal_value(duk_heap *heap, duk_hobject *obj, duk_tval *tv); +DUK_INTERNAL_DECL duk_hstring *duk_hobject_get_internal_value_string(duk_heap *heap, duk_hobject *obj); + +/* hobject management functions */ +DUK_INTERNAL_DECL void duk_hobject_compact_props(duk_hthread *thr, duk_hobject *obj); + +/* ES6 proxy */ +#if defined(DUK_USE_ES6_PROXY) +DUK_INTERNAL_DECL duk_bool_t duk_hobject_proxy_check(duk_hthread *thr, duk_hobject *obj, duk_hobject **out_target, duk_hobject **out_handler); +DUK_INTERNAL_DECL duk_hobject *duk_hobject_resolve_proxy_target(duk_hthread *thr, duk_hobject *obj); +#endif + +/* enumeration */ +DUK_INTERNAL_DECL void duk_hobject_enumerator_create(duk_context *ctx, duk_small_uint_t enum_flags); +DUK_INTERNAL_DECL duk_ret_t duk_hobject_get_enumerated_keys(duk_context *ctx, duk_small_uint_t enum_flags); +DUK_INTERNAL_DECL duk_bool_t duk_hobject_enumerator_next(duk_context *ctx, duk_bool_t get_value); + +/* macros */ +DUK_INTERNAL_DECL void duk_hobject_set_prototype_updref(duk_hthread *thr, duk_hobject *h, duk_hobject *p); + +/* finalization */ +DUK_INTERNAL_DECL void duk_hobject_run_finalizer(duk_hthread *thr, duk_hobject *obj); + +/* pc2line */ +#if defined(DUK_USE_PC2LINE) +DUK_INTERNAL_DECL void duk_hobject_pc2line_pack(duk_hthread *thr, duk_compiler_instr *instrs, duk_uint_fast32_t length); +DUK_INTERNAL_DECL duk_uint_fast32_t duk_hobject_pc2line_query(duk_context *ctx, duk_idx_t idx_func, duk_uint_fast32_t pc); +#endif + +/* misc */ +DUK_INTERNAL_DECL duk_bool_t duk_hobject_prototype_chain_contains(duk_hthread *thr, duk_hobject *h, duk_hobject *p, duk_bool_t ignore_loop); + +#endif /* DUK_HOBJECT_H_INCLUDED */ +#line 1 "duk_hcompiledfunction.h" +/* + * Heap compiled function (Ecmascript function) representation. + * + * There is a single data buffer containing the Ecmascript function's + * bytecode, constants, and inner functions. + */ + +#ifndef DUK_HCOMPILEDFUNCTION_H_INCLUDED +#define DUK_HCOMPILEDFUNCTION_H_INCLUDED + +/* + * Field accessor macros + */ + +/* XXX: casts could be improved, especially for GET/SET DATA */ + +#if defined(DUK_USE_HEAPPTR16) +#define DUK_HCOMPILEDFUNCTION_GET_DATA(heap,h) \ + ((duk_hbuffer_fixed *) (void *) DUK_USE_HEAPPTR_DEC16((heap)->heap_udata, (h)->data16)) +#define DUK_HCOMPILEDFUNCTION_SET_DATA(heap,h,v) do { \ + (h)->data16 = DUK_USE_HEAPPTR_ENC16((heap)->heap_udata, (void *) (v)); \ + } while (0) +#define DUK_HCOMPILEDFUNCTION_GET_FUNCS(heap,h) \ + ((duk_hobject **) (void *) (DUK_USE_HEAPPTR_DEC16((heap)->heap_udata, (h)->funcs16))) +#define DUK_HCOMPILEDFUNCTION_SET_FUNCS(heap,h,v) do { \ + (h)->funcs16 = DUK_USE_HEAPPTR_ENC16((heap)->heap_udata, (void *) (v)); \ + } while (0) +#define DUK_HCOMPILEDFUNCTION_GET_BYTECODE(heap,h) \ + ((duk_instr_t *) (void *) (DUK_USE_HEAPPTR_DEC16((heap)->heap_udata, (h)->bytecode16))) +#define DUK_HCOMPILEDFUNCTION_SET_BYTECODE(heap,h,v) do { \ + (h)->bytecode16 = DUK_USE_HEAPPTR_ENC16((heap)->heap_udata, (void *) (v)); \ + } while (0) +#else +#define DUK_HCOMPILEDFUNCTION_GET_DATA(heap,h) \ + ((duk_hbuffer_fixed *) (void *) (h)->data) +#define DUK_HCOMPILEDFUNCTION_SET_DATA(heap,h,v) do { \ + (h)->data = (duk_hbuffer *) (v); \ + } while (0) +#define DUK_HCOMPILEDFUNCTION_GET_FUNCS(heap,h) \ + ((h)->funcs) +#define DUK_HCOMPILEDFUNCTION_SET_FUNCS(heap,h,v) do { \ + (h)->funcs = (v); \ + } while (0) +#define DUK_HCOMPILEDFUNCTION_GET_BYTECODE(heap,h) \ + ((h)->bytecode) +#define DUK_HCOMPILEDFUNCTION_SET_BYTECODE(heap,h,v) do { \ + (h)->bytecode = (v); \ + } while (0) +#endif + +/* + * Accessor macros for function specific data areas + */ + +/* Note: assumes 'data' is always a fixed buffer */ +#define DUK_HCOMPILEDFUNCTION_GET_BUFFER_BASE(heap,h) \ + DUK_HBUFFER_FIXED_GET_DATA_PTR((heap), DUK_HCOMPILEDFUNCTION_GET_DATA((heap), (h))) + +#define DUK_HCOMPILEDFUNCTION_GET_CONSTS_BASE(heap,h) \ + ((duk_tval *) (void *) DUK_HCOMPILEDFUNCTION_GET_BUFFER_BASE((heap), (h))) + +#define DUK_HCOMPILEDFUNCTION_GET_FUNCS_BASE(heap,h) \ + DUK_HCOMPILEDFUNCTION_GET_FUNCS((heap), (h)) + +#define DUK_HCOMPILEDFUNCTION_GET_CODE_BASE(heap,h) \ + DUK_HCOMPILEDFUNCTION_GET_BYTECODE((heap), (h)) + +#define DUK_HCOMPILEDFUNCTION_GET_CONSTS_END(heap,h) \ + ((duk_tval *) (void *) DUK_HCOMPILEDFUNCTION_GET_FUNCS((heap), (h))) + +#define DUK_HCOMPILEDFUNCTION_GET_FUNCS_END(heap,h) \ + ((duk_hobject **) (void *) DUK_HCOMPILEDFUNCTION_GET_BYTECODE((heap), (h))) + +/* XXX: double evaluation of DUK_HCOMPILEDFUNCTION_GET_DATA() */ +#define DUK_HCOMPILEDFUNCTION_GET_CODE_END(heap,h) \ + ((duk_instr_t *) (void *) (DUK_HBUFFER_FIXED_GET_DATA_PTR((heap), DUK_HCOMPILEDFUNCTION_GET_DATA((heap), (h))) + \ + DUK_HBUFFER_GET_SIZE((duk_hbuffer *) DUK_HCOMPILEDFUNCTION_GET_DATA((heap), h)))) + +#define DUK_HCOMPILEDFUNCTION_GET_CONSTS_SIZE(heap,h) \ + ( \ + (duk_size_t) \ + ( \ + ((const duk_uint8_t *) DUK_HCOMPILEDFUNCTION_GET_CONSTS_END((heap), (h))) - \ + ((const duk_uint8_t *) DUK_HCOMPILEDFUNCTION_GET_CONSTS_BASE((heap), (h))) \ + ) \ + ) + +#define DUK_HCOMPILEDFUNCTION_GET_FUNCS_SIZE(heap,h) \ + ( \ + (duk_size_t) \ + ( \ + ((const duk_uint8_t *) DUK_HCOMPILEDFUNCTION_GET_FUNCS_END((heap), (h))) - \ + ((const duk_uint8_t *) DUK_HCOMPILEDFUNCTION_GET_FUNCS_BASE((heap), (h))) \ + ) \ + ) + +#define DUK_HCOMPILEDFUNCTION_GET_CODE_SIZE(heap,h) \ + ( \ + (duk_size_t) \ + ( \ + ((const duk_uint8_t *) DUK_HCOMPILEDFUNCTION_GET_CODE_END((heap),(h))) - \ + ((const duk_uint8_t *) DUK_HCOMPILEDFUNCTION_GET_CODE_BASE((heap),(h))) \ + ) \ + ) + +#define DUK_HCOMPILEDFUNCTION_GET_CONSTS_COUNT(heap,h) \ + ((duk_size_t) (DUK_HCOMPILEDFUNCTION_GET_CONSTS_SIZE((heap), (h)) / sizeof(duk_tval))) + +#define DUK_HCOMPILEDFUNCTION_GET_FUNCS_COUNT(heap,h) \ + ((duk_size_t) (DUK_HCOMPILEDFUNCTION_GET_FUNCS_SIZE((heap), (h)) / sizeof(duk_hobject *))) + +#define DUK_HCOMPILEDFUNCTION_GET_CODE_COUNT(heap,h) \ + ((duk_size_t) (DUK_HCOMPILEDFUNCTION_GET_CODE_SIZE((heap), (h)) / sizeof(duk_instr_t))) + + +/* + * Main struct + */ + +struct duk_hcompiledfunction { + /* shared object part */ + duk_hobject obj; + + /* + * Pointers to function data area for faster access. Function + * data is a buffer shared between all closures of the same + * "template" function. The data buffer is always fixed (non- + * dynamic, hence stable), with a layout as follows: + * + * constants (duk_tval) + * inner functions (duk_hobject *) + * bytecode (duk_instr_t) + * + * Note: bytecode end address can be computed from 'data' buffer + * size. It is not strictly necessary functionally, assuming + * bytecode never jumps outside its allocated area. However, + * it's a safety/robustness feature for avoiding the chance of + * executing random data as bytecode due to a compiler error. + * + * Note: values in the data buffer must be incref'd (they will + * be decref'd on release) for every compiledfunction referring + * to the 'data' element. + */ + + /* Data area, fixed allocation, stable data ptrs. */ +#if defined(DUK_USE_HEAPPTR16) + duk_uint16_t data16; +#else + duk_hbuffer *data; +#endif + + /* No need for constants pointer (= same as data). + * + * When using 16-bit packing alignment to 4 is nice. 'funcs' will be + * 4-byte aligned because 'constants' are duk_tvals. For now the + * inner function pointers are not compressed, so that 'bytecode' will + * also be 4-byte aligned. + */ +#if defined(DUK_USE_HEAPPTR16) + duk_uint16_t funcs16; + duk_uint16_t bytecode16; +#else + duk_hobject **funcs; + duk_instr_t *bytecode; +#endif + + /* + * 'nregs' registers are allocated on function entry, at most 'nargs' + * are initialized to arguments, and the rest to undefined. Arguments + * above 'nregs' are not mapped to registers. All registers in the + * active stack range must be initialized because they are GC reachable. + * 'nargs' is needed so that if the function is given more than 'nargs' + * arguments, the additional arguments do not 'clobber' registers + * beyond 'nregs' which must be consistently initialized to undefined. + * + * Usually there is no need to know which registers are mapped to + * local variables. Registers may be allocated to variable in any + * way (even including gaps). However, a register-variable mapping + * must be the same for the duration of the function execution and + * the register cannot be used for anything else. + * + * When looking up variables by name, the '_Varmap' map is used. + * When an activation closes, registers mapped to arguments are + * copied into the environment record based on the same map. The + * reverse map (from register to variable) is not currently needed + * at run time, except for debugging, so it is not maintained. + */ + + duk_uint16_t nregs; /* regs to allocate */ + duk_uint16_t nargs; /* number of arguments allocated to regs */ + + /* + * Additional control information is placed into the object itself + * as internal properties to avoid unnecessary fields for the + * majority of functions. The compiler tries to omit internal + * control fields when possible. + * + * Function templates: + * + * { + * name: "func", // declaration, named function expressions + * fileName: + * _Varmap: { "arg1": 0, "arg2": 1, "varname": 2 }, + * _Formals: [ "arg1", "arg2" ], + * _Source: "function func(arg1, arg2) { ... }", + * _Pc2line: , + * } + * + * Function instances: + * + * { + * length: 2, + * prototype: { constructor: }, + * caller: , + * arguments: , + * name: "func", // declaration, named function expressions + * fileName: + * _Varmap: { "arg1": 0, "arg2": 1, "varname": 2 }, + * _Formals: [ "arg1", "arg2" ], + * _Source: "function func(arg1, arg2) { ... }", + * _Pc2line: , + * _Varenv: , + * _Lexenv: + * } + * + * More detailed description of these properties can be found + * in the documentation. + */ + +#if defined(DUK_USE_DEBUGGER_SUPPORT) + /* Line number range for function. Needed during debugging to + * determine active breakpoints. + */ + duk_uint32_t start_line; + duk_uint32_t end_line; +#endif +}; + +#endif /* DUK_HCOMPILEDFUNCTION_H_INCLUDED */ +#line 1 "duk_hnativefunction.h" +/* + * Heap native function representation. + */ + +#ifndef DUK_HNATIVEFUNCTION_H_INCLUDED +#define DUK_HNATIVEFUNCTION_H_INCLUDED + +#define DUK_HNATIVEFUNCTION_NARGS_VARARGS ((duk_int16_t) -1) +#define DUK_HNATIVEFUNCTION_NARGS_MAX ((duk_int16_t) 0x7fff) + +struct duk_hnativefunction { + /* shared object part */ + duk_hobject obj; + + duk_c_function func; + duk_int16_t nargs; + duk_int16_t magic; + + /* The 'magic' field allows an opaque 16-bit field to be accessed by the + * Duktape/C function. This allows, for instance, the same native function + * to be used for a set of very similar functions, with the 'magic' field + * providing the necessary non-argument flags / values to guide the behavior + * of the native function. The value is signed on purpose: it is easier to + * convert a signed value to unsigned (simply AND with 0xffff) than vice + * versa. + * + * Note: cannot place nargs/magic into the heaphdr flags, because + * duk_hobject takes almost all flags already (and needs the spare). + */ +}; + +#endif /* DUK_HNATIVEFUNCTION_H_INCLUDED */ +#line 1 "duk_hbufferobject.h" +/* + * Heap Buffer object representation. Used for all Buffer variants. + */ + +#ifndef DUK_HBUFFEROBJECT_H_INCLUDED +#define DUK_HBUFFEROBJECT_H_INCLUDED + +/* All element accessors are host endian now (driven by TypedArray spec). */ +#define DUK_HBUFFEROBJECT_ELEM_UINT8 0 +#define DUK_HBUFFEROBJECT_ELEM_UINT8CLAMPED 1 +#define DUK_HBUFFEROBJECT_ELEM_INT8 2 +#define DUK_HBUFFEROBJECT_ELEM_UINT16 3 +#define DUK_HBUFFEROBJECT_ELEM_INT16 4 +#define DUK_HBUFFEROBJECT_ELEM_UINT32 5 +#define DUK_HBUFFEROBJECT_ELEM_INT32 6 +#define DUK_HBUFFEROBJECT_ELEM_FLOAT32 7 +#define DUK_HBUFFEROBJECT_ELEM_FLOAT64 8 +#define DUK_HBUFFEROBJECT_ELEM_MAX 8 + +#define DUK_ASSERT_HBUFFEROBJECT_VALID(h) do { \ + DUK_ASSERT((h) != NULL); \ + DUK_ASSERT((h)->shift <= 3); \ + DUK_ASSERT((h)->elem_type <= DUK_HBUFFEROBJECT_ELEM_MAX); \ + DUK_ASSERT(((h)->shift == 0 && (h)->elem_type == DUK_HBUFFEROBJECT_ELEM_UINT8) || \ + ((h)->shift == 0 && (h)->elem_type == DUK_HBUFFEROBJECT_ELEM_UINT8CLAMPED) || \ + ((h)->shift == 0 && (h)->elem_type == DUK_HBUFFEROBJECT_ELEM_INT8) || \ + ((h)->shift == 1 && (h)->elem_type == DUK_HBUFFEROBJECT_ELEM_UINT16) || \ + ((h)->shift == 1 && (h)->elem_type == DUK_HBUFFEROBJECT_ELEM_INT16) || \ + ((h)->shift == 2 && (h)->elem_type == DUK_HBUFFEROBJECT_ELEM_UINT32) || \ + ((h)->shift == 2 && (h)->elem_type == DUK_HBUFFEROBJECT_ELEM_INT32) || \ + ((h)->shift == 2 && (h)->elem_type == DUK_HBUFFEROBJECT_ELEM_FLOAT32) || \ + ((h)->shift == 3 && (h)->elem_type == DUK_HBUFFEROBJECT_ELEM_FLOAT64)); \ + DUK_ASSERT((h)->is_view == 0 || (h)->is_view == 1); \ + DUK_ASSERT(DUK_HOBJECT_IS_BUFFEROBJECT((duk_hobject *) (h))); \ + if ((h)->buf == NULL) { \ + DUK_ASSERT((h)->offset == 0); \ + DUK_ASSERT((h)->length == 0); \ + } else { \ + /* No assertions for offset or length; in particular, \ + * it's OK for length to be longer than underlying \ + * buffer. Just ensure they don't wrap when added. \ + */ \ + DUK_ASSERT((h)->offset + (h)->length >= (h)->offset); \ + } \ + } while (0) + +/* Get the current data pointer (caller must ensure buf != NULL) as a + * duk_uint8_t ptr. + */ +#define DUK_HBUFFEROBJECT_GET_SLICE_BASE(heap,h) \ + (DUK_ASSERT_EXPR((h) != NULL), DUK_ASSERT_EXPR((h)->buf != NULL), \ + (((duk_uint8_t *) DUK_HBUFFER_GET_DATA_PTR((heap), (h)->buf)) + (h)->offset)) + +/* True if slice is full, i.e. offset is zero and length covers the entire + * buffer. This status may change independently of the duk_hbufferobject if + * the underlying buffer is dynamic and changes without the hbufferobject + * being changed. + */ +#define DUK_HBUFFEROBJECT_FULL_SLICE(h) \ + (DUK_ASSERT_EXPR((h) != NULL), DUK_ASSERT_EXPR((h)->buf != NULL), \ + ((h)->offset == 0 && (h)->length == DUK_HBUFFER_GET_SIZE((h)->buf))) + +/* Validate that the whole slice [0,length[ is contained in the underlying + * buffer. Caller must ensure 'buf' != NULL. + */ +#define DUK_HBUFFEROBJECT_VALID_SLICE(h) \ + (DUK_ASSERT_EXPR((h) != NULL), DUK_ASSERT_EXPR((h)->buf != NULL), \ + ((h)->offset + (h)->length <= DUK_HBUFFER_GET_SIZE((h)->buf))) + +/* Validate byte read/write for virtual 'offset', i.e. check that the + * offset, taking into account h->offset, is within the underlying + * buffer size. This is a safety check which is needed to ensure + * that even a misconfigured duk_hbufferobject never causes memory + * unsafe behavior (e.g. if an underlying dynamic buffer changes + * after being setup). Caller must ensure 'buf' != NULL. + */ +#define DUK_HBUFFEROBJECT_VALID_BYTEOFFSET_INCL(h,off) \ + (DUK_ASSERT_EXPR((h) != NULL), DUK_ASSERT_EXPR((h)->buf != NULL), \ + ((h)->offset + (off) < DUK_HBUFFER_GET_SIZE((h)->buf))) + +#define DUK_HBUFFEROBJECT_VALID_BYTEOFFSET_EXCL(h,off) \ + (DUK_ASSERT_EXPR((h) != NULL), DUK_ASSERT_EXPR((h)->buf != NULL), \ + ((h)->offset + (off) <= DUK_HBUFFER_GET_SIZE((h)->buf))) + +/* Clamp an input byte length (already assumed to be within the nominal + * duk_hbufferobject 'length') to the current dynamic buffer limits to + * yield a byte length limit that's safe for memory accesses. This value + * can be invalidated by any side effect because it may trigger a user + * callback that resizes the underlying buffer. + */ +#define DUK_HBUFFEROBJECT_CLAMP_BYTELENGTH(h,len) \ + (DUK_ASSERT_EXPR((h) != NULL), \ + duk_hbufferobject_clamp_bytelength((h), (len))) + +struct duk_hbufferobject { + /* Shared object part. */ + duk_hobject obj; + + /* Underlying buffer (refcounted), may be NULL. */ + duk_hbuffer *buf; + + /* Slice and accessor information. + * + * Because the underlying buffer may be dynamic, these may be + * invalidated by the buffer being modified so that both offset + * and length should be validated before every access. Behavior + * when the underlying buffer has changed doesn't need to be clean: + * virtual 'length' doesn't need to be affected, reads can return + * zero/NaN, and writes can be ignored. + * + * Note that a data pointer cannot be precomputed because 'buf' may + * be dynamic and its pointer unstable. + */ + + duk_uint_t offset; /* byte offset to buf */ + duk_uint_t length; /* byte index limit for element access, exclusive */ + duk_uint8_t shift; /* element size shift: + * 0 = u8/i8 + * 1 = u16/i16 + * 2 = u32/i32/float + * 3 = double + */ + duk_uint8_t elem_type; /* element type */ + duk_uint8_t is_view; +}; + +#if defined(DUK_USE_BUFFEROBJECT_SUPPORT) +DUK_INTERNAL_DECL duk_uint_t duk_hbufferobject_clamp_bytelength(duk_hbufferobject *h_bufobj, duk_uint_t len); +#endif +DUK_INTERNAL_DECL void duk_hbufferobject_push_validated_read(duk_context *ctx, duk_hbufferobject *h_bufobj, duk_uint8_t *p, duk_small_uint_t elem_size); +DUK_INTERNAL_DECL void duk_hbufferobject_validated_write(duk_context *ctx, duk_hbufferobject *h_bufobj, duk_uint8_t *p, duk_small_uint_t elem_size); + +#endif /* DUK_HBUFFEROBJECT_H_INCLUDED */ +#line 1 "duk_hthread.h" +/* + * Heap thread object representation. + * + * duk_hthread is also the 'context' (duk_context) for exposed APIs + * which mostly operate on the topmost frame of the value stack. + */ + +#ifndef DUK_HTHREAD_H_INCLUDED +#define DUK_HTHREAD_H_INCLUDED + +/* + * Stack constants + */ + +#define DUK_VALSTACK_GROW_STEP 128 /* roughly 1 kiB */ +#define DUK_VALSTACK_SHRINK_THRESHOLD 256 /* roughly 2 kiB */ +#define DUK_VALSTACK_SHRINK_SPARE 64 /* roughly 0.5 kiB */ +#define DUK_VALSTACK_INITIAL_SIZE 128 /* roughly 1.0 kiB -> but rounds up to DUK_VALSTACK_GROW_STEP in practice */ +#define DUK_VALSTACK_INTERNAL_EXTRA 64 /* internal extra elements assumed on function entry, + * always added to user-defined 'extra' for e.g. the + * duk_check_stack() call. + */ +#define DUK_VALSTACK_API_ENTRY_MINIMUM DUK_API_ENTRY_STACK + /* number of elements guaranteed to be user accessible + * (in addition to call arguments) on Duktape/C function entry. + */ + +/* Note: DUK_VALSTACK_INITIAL_SIZE must be >= DUK_VALSTACK_API_ENTRY_MINIMUM + * + DUK_VALSTACK_INTERNAL_EXTRA so that the initial stack conforms to spare + * requirements. + */ + +#define DUK_VALSTACK_DEFAULT_MAX 1000000L + +#define DUK_CALLSTACK_GROW_STEP 8 /* roughly 256 bytes */ +#define DUK_CALLSTACK_SHRINK_THRESHOLD 16 /* roughly 512 bytes */ +#define DUK_CALLSTACK_SHRINK_SPARE 8 /* roughly 256 bytes */ +#define DUK_CALLSTACK_INITIAL_SIZE 8 +#define DUK_CALLSTACK_DEFAULT_MAX 10000L + +#define DUK_CATCHSTACK_GROW_STEP 4 /* roughly 64 bytes */ +#define DUK_CATCHSTACK_SHRINK_THRESHOLD 8 /* roughly 128 bytes */ +#define DUK_CATCHSTACK_SHRINK_SPARE 4 /* roughly 64 bytes */ +#define DUK_CATCHSTACK_INITIAL_SIZE 4 +#define DUK_CATCHSTACK_DEFAULT_MAX 10000L + +/* + * Activation defines + */ + +#define DUK_ACT_FLAG_STRICT (1 << 0) /* function executes in strict mode */ +#define DUK_ACT_FLAG_TAILCALLED (1 << 1) /* activation has tail called one or more times */ +#define DUK_ACT_FLAG_CONSTRUCT (1 << 2) /* function executes as a constructor (called via "new") */ +#define DUK_ACT_FLAG_PREVENT_YIELD (1 << 3) /* activation prevents yield (native call or "new") */ +#define DUK_ACT_FLAG_DIRECT_EVAL (1 << 4) /* activation is a direct eval call */ +#define DUK_ACT_FLAG_BREAKPOINT_ACTIVE (1 << 5) /* activation has active breakpoint(s) */ + +#define DUK_ACT_GET_FUNC(act) ((act)->func) + +/* + * Flags for __FILE__ / __LINE__ registered into tracedata + */ + +#define DUK_TB_FLAG_NOBLAME_FILELINE (1 << 0) /* don't report __FILE__ / __LINE__ as fileName/lineNumber */ + +/* + * Catcher defines + */ + +/* flags field: LLLLLLFT, L = label (24 bits), F = flags (4 bits), T = type (4 bits) */ +#define DUK_CAT_TYPE_MASK 0x0000000fUL +#define DUK_CAT_TYPE_BITS 4 +#define DUK_CAT_LABEL_MASK 0xffffff00UL +#define DUK_CAT_LABEL_BITS 24 +#define DUK_CAT_LABEL_SHIFT 8 + +#define DUK_CAT_FLAG_CATCH_ENABLED (1 << 4) /* catch part will catch */ +#define DUK_CAT_FLAG_FINALLY_ENABLED (1 << 5) /* finally part will catch */ +#define DUK_CAT_FLAG_CATCH_BINDING_ENABLED (1 << 6) /* request to create catch binding */ +#define DUK_CAT_FLAG_LEXENV_ACTIVE (1 << 7) /* catch or with binding is currently active */ + +#define DUK_CAT_TYPE_UNKNOWN 0 +#define DUK_CAT_TYPE_TCF 1 +#define DUK_CAT_TYPE_LABEL 2 + +#define DUK_CAT_GET_TYPE(c) ((c)->flags & DUK_CAT_TYPE_MASK) +#define DUK_CAT_GET_LABEL(c) (((c)->flags & DUK_CAT_LABEL_MASK) >> DUK_CAT_LABEL_SHIFT) + +#define DUK_CAT_HAS_CATCH_ENABLED(c) ((c)->flags & DUK_CAT_FLAG_CATCH_ENABLED) +#define DUK_CAT_HAS_FINALLY_ENABLED(c) ((c)->flags & DUK_CAT_FLAG_FINALLY_ENABLED) +#define DUK_CAT_HAS_CATCH_BINDING_ENABLED(c) ((c)->flags & DUK_CAT_FLAG_CATCH_BINDING_ENABLED) +#define DUK_CAT_HAS_LEXENV_ACTIVE(c) ((c)->flags & DUK_CAT_FLAG_LEXENV_ACTIVE) + +#define DUK_CAT_SET_CATCH_ENABLED(c) do { \ + (c)->flags |= DUK_CAT_FLAG_CATCH_ENABLED; \ + } while (0) +#define DUK_CAT_SET_FINALLY_ENABLED(c) do { \ + (c)->flags |= DUK_CAT_FLAG_FINALLY_ENABLED; \ + } while (0) +#define DUK_CAT_SET_CATCH_BINDING_ENABLED(c) do { \ + (c)->flags |= DUK_CAT_FLAG_CATCH_BINDING_ENABLED; \ + } while (0) +#define DUK_CAT_SET_LEXENV_ACTIVE(c) do { \ + (c)->flags |= DUK_CAT_FLAG_LEXENV_ACTIVE; \ + } while (0) + +#define DUK_CAT_CLEAR_CATCH_ENABLED(c) do { \ + (c)->flags &= ~DUK_CAT_FLAG_CATCH_ENABLED; \ + } while (0) +#define DUK_CAT_CLEAR_FINALLY_ENABLED(c) do { \ + (c)->flags &= ~DUK_CAT_FLAG_FINALLY_ENABLED; \ + } while (0) +#define DUK_CAT_CLEAR_CATCH_BINDING_ENABLED(c) do { \ + (c)->flags &= ~DUK_CAT_FLAG_CATCH_BINDING_ENABLED; \ + } while (0) +#define DUK_CAT_CLEAR_LEXENV_ACTIVE(c) do { \ + (c)->flags &= ~DUK_CAT_FLAG_LEXENV_ACTIVE; \ + } while (0) + +/* + * Thread defines + */ + +#if defined(DUK_USE_ROM_STRINGS) +#define DUK_HTHREAD_GET_STRING(thr,idx) \ + ((duk_hstring *) DUK_LOSE_CONST(duk_rom_strings_stridx[(idx)])) +#else /* DUK_USE_ROM_STRINGS */ +#if defined(DUK_USE_HEAPPTR16) +#define DUK_HTHREAD_GET_STRING(thr,idx) \ + ((duk_hstring *) DUK_USE_HEAPPTR_DEC16((thr)->heap->heap_udata, (thr)->strs16[(idx)])) +#else +#define DUK_HTHREAD_GET_STRING(thr,idx) \ + ((thr)->strs[(idx)]) +#endif +#endif /* DUK_USE_ROM_STRINGS */ + +#define DUK_HTHREAD_GET_CURRENT_ACTIVATION(thr) (&(thr)->callstack[(thr)->callstack_top - 1]) + +/* values for the state field */ +#define DUK_HTHREAD_STATE_INACTIVE 1 /* thread not currently running */ +#define DUK_HTHREAD_STATE_RUNNING 2 /* thread currently running (only one at a time) */ +#define DUK_HTHREAD_STATE_RESUMED 3 /* thread resumed another thread (active but not running) */ +#define DUK_HTHREAD_STATE_YIELDED 4 /* thread has yielded */ +#define DUK_HTHREAD_STATE_TERMINATED 5 /* thread has terminated */ + +/* Executor interrupt default interval when nothing else requires a + * smaller value. The default interval must be small enough to allow + * for reasonable execution timeout checking but large enough to keep + * impact on execution performance low. + */ +#if defined(DUK_USE_INTERRUPT_COUNTER) +#define DUK_HTHREAD_INTCTR_DEFAULT (256L * 1024L) +#endif + +/* + * Assert context is valid: non-NULL pointer, fields look sane. + * + * This is used by public API call entrypoints to catch invalid 'ctx' pointers + * as early as possible; invalid 'ctx' pointers cause very odd and difficult to + * diagnose behavior so it's worth checking even when the check is not 100%. + */ + +#if defined(DUK_USE_PREFER_SIZE) +#define DUK_ASSERT_CTX_VSSIZE(ctx) /*nop*/ +#else +#define DUK_ASSERT_CTX_VSSIZE(ctx) \ + DUK_ASSERT((duk_size_t) (((duk_hthread *) (ctx))->valstack_end - ((duk_hthread *) (ctx))->valstack) == \ + ((duk_hthread *) (ctx))->valstack_size) +#endif +#define DUK_ASSERT_CTX_VALID(ctx) do { \ + DUK_ASSERT((ctx) != NULL); \ + DUK_ASSERT(DUK_HEAPHDR_GET_TYPE((duk_heaphdr *) (ctx)) == DUK_HTYPE_OBJECT); \ + DUK_ASSERT(DUK_HOBJECT_IS_THREAD((duk_hobject *) (ctx))); \ + DUK_ASSERT(((duk_hthread *) (ctx))->unused1 == 0); \ + DUK_ASSERT(((duk_hthread *) (ctx))->unused2 == 0); \ + DUK_ASSERT(((duk_hthread *) (ctx))->valstack != NULL); \ + DUK_ASSERT(((duk_hthread *) (ctx))->valstack_end >= ((duk_hthread *) (ctx))->valstack); \ + DUK_ASSERT(((duk_hthread *) (ctx))->valstack_top >= ((duk_hthread *) (ctx))->valstack); \ + DUK_ASSERT(((duk_hthread *) (ctx))->valstack_top >= ((duk_hthread *) (ctx))->valstack_bottom); \ + DUK_ASSERT(((duk_hthread *) (ctx))->valstack_end >= ((duk_hthread *) (ctx))->valstack_top); \ + DUK_ASSERT_CTX_VSSIZE((ctx)); \ + } while (0) + +/* + * Struct defines + */ + +/* XXX: for a memory-code tradeoff, remove 'func' and make it's access either a function + * or a macro. This would make the activation 32 bytes long on 32-bit platforms again. + */ + +/* Note: it's nice if size is 2^N (at least for 32-bit platforms). */ +struct duk_activation { + duk_tval tv_func; /* borrowed: full duk_tval for function being executed; for lightfuncs */ + duk_hobject *func; /* borrowed: function being executed; for bound function calls, this is the final, real function, NULL for lightfuncs */ + duk_hobject *var_env; /* current variable environment (may be NULL if delayed) */ + duk_hobject *lex_env; /* current lexical environment (may be NULL if delayed) */ +#ifdef DUK_USE_NONSTD_FUNC_CALLER_PROPERTY + /* Previous value of 'func' caller, restored when unwound. Only in use + * when 'func' is non-strict. + */ + duk_hobject *prev_caller; +#endif + + duk_instr_t *curr_pc; /* next instruction to execute (points to 'func' bytecode, stable pointer), NULL for native calls */ +#if defined(DUK_USE_DEBUGGER_SUPPORT) + duk_uint32_t prev_line; /* needed for stepping */ +#endif + duk_small_uint_t flags; + + /* idx_bottom and idx_retval are only used for book-keeping of + * Ecmascript-initiated calls, to allow returning to an Ecmascript + * function properly. They are duk_size_t to match the convention + * that value stack sizes are duk_size_t and local frame indices + * are duk_idx_t. + */ + + /* Bottom of valstack for this activation, used to reset + * valstack_bottom on return; index is absolute. Note: + * idx_top not needed because top is set to 'nregs' always + * when returning to an Ecmascript activation. + */ + duk_size_t idx_bottom; + + /* Return value when returning to this activation (points to caller + * reg, not callee reg); index is absolute (only set if activation is + * not topmost). + * + * Note: idx_bottom is always set, while idx_retval is only applicable + * for activations below the topmost one. Currently idx_retval for + * the topmost activation is considered garbage (and it not initialized + * on entry or cleared on return; may contain previous or garbage + * values). + */ + duk_size_t idx_retval; + + /* Current 'this' binding is the value just below idx_bottom. + * Previously, 'this' binding was handled with an index to the + * (calling) valstack. This works for everything except tail + * calls, which must not "cumulate" valstack temps. + */ +}; + +/* Note: it's nice if size is 2^N (not 4x4 = 16 bytes on 32 bit) */ +struct duk_catcher { + duk_hstring *h_varname; /* borrowed reference to catch variable name (or NULL if none) */ + /* (reference is valid as long activation exists) */ + duk_instr_t *pc_base; /* resume execution from pc_base or pc_base+1 (points to 'func' bytecode, stable pointer) */ + duk_size_t callstack_index; /* callstack index of related activation */ + duk_size_t idx_base; /* idx_base and idx_base+1 get completion value and type */ + duk_uint32_t flags; /* type and control flags, label number */ +}; + +struct duk_hthread { + /* Shared object part */ + duk_hobject obj; + + /* Pointer to bytecode executor's 'curr_pc' variable. Used to copy + * the current PC back into the topmost activation when activation + * state is about to change (or "syncing" is otherwise needed). This + * is rather awkward but important for performance, see execution.rst. + */ + duk_instr_t **ptr_curr_pc; + + /* Backpointers. */ + duk_heap *heap; + + /* Current strictness flag: affects API calls. */ + duk_uint8_t strict; + + /* Thread state. */ + duk_uint8_t state; + duk_uint8_t unused1; + duk_uint8_t unused2; + + /* Sanity limits for stack sizes. */ + duk_size_t valstack_max; + duk_size_t callstack_max; + duk_size_t catchstack_max; + + /* XXX: Valstack, callstack, and catchstack are currently assumed + * to have non-NULL pointers. Relaxing this would not lead to big + * benefits (except perhaps for terminated threads). + */ + + /* Value stack: these are expressed as pointers for faster stack manipulation. + * [valstack,valstack_top[ is GC-reachable, [valstack_top,valstack_end[ is + * not GC-reachable but kept initialized as 'undefined'. + */ + duk_tval *valstack; /* start of valstack allocation */ + duk_tval *valstack_end; /* end of valstack allocation (exclusive) */ + duk_tval *valstack_bottom; /* bottom of current frame */ + duk_tval *valstack_top; /* top of current frame (exclusive) */ +#if !defined(DUK_USE_PREFER_SIZE) + duk_size_t valstack_size; /* cached: valstack_end - valstack (in entries, not bytes) */ +#endif + + /* Call stack. [0,callstack_top[ is GC reachable. */ + duk_activation *callstack; + duk_size_t callstack_size; /* allocation size */ + duk_size_t callstack_top; /* next to use, highest used is top - 1 */ + duk_size_t callstack_preventcount; /* number of activation records in callstack preventing a yield */ + + /* Catch stack. [0,catchstack_top[ is GC reachable. */ + duk_catcher *catchstack; + duk_size_t catchstack_size; /* allocation size */ + duk_size_t catchstack_top; /* next to use, highest used is top - 1 */ + + /* Yield/resume book-keeping. */ + duk_hthread *resumer; /* who resumed us (if any) */ + + /* Current compiler state (if any), used for augmenting SyntaxErrors. */ + duk_compiler_ctx *compile_ctx; + +#if defined(DUK_USE_INTERRUPT_COUNTER) + /* Interrupt counter for triggering a slow path check for execution + * timeout, debugger interaction such as breakpoints, etc. The value + * is valid for the current running thread, and both the init and + * counter values are copied whenever a thread switch occurs. It's + * important for the counter to be conveniently accessible for the + * bytecode executor inner loop for performance reasons. + */ + duk_int_t interrupt_counter; /* countdown state */ + duk_int_t interrupt_init; /* start value for current countdown */ +#endif + + /* Builtin-objects; may or may not be shared with other threads, + * threads existing in different "compartments" will have different + * built-ins. Must be stored on a per-thread basis because there + * is no intermediate structure for a thread group / compartment. + * This takes quite a lot of space, currently 43x4 = 172 bytes on + * 32-bit platforms. + * + * In some cases the builtins array could be ROM based, but it's + * sometimes edited (e.g. for sandboxing) so it's better to keep + * this array in RAM. + */ + duk_hobject *builtins[DUK_NUM_BUILTINS]; + + /* Convenience copies from heap/vm for faster access. */ +#if defined(DUK_USE_ROM_STRINGS) + /* No field needed when strings are in ROM. */ +#else +#if defined(DUK_USE_HEAPPTR16) + duk_uint16_t *strs16; +#else + duk_hstring **strs; +#endif +#endif +}; + +/* + * Prototypes + */ + +DUK_INTERNAL_DECL void duk_hthread_copy_builtin_objects(duk_hthread *thr_from, duk_hthread *thr_to); +DUK_INTERNAL_DECL void duk_hthread_create_builtin_objects(duk_hthread *thr); +DUK_INTERNAL_DECL duk_bool_t duk_hthread_init_stacks(duk_heap *heap, duk_hthread *thr); +DUK_INTERNAL_DECL void duk_hthread_terminate(duk_hthread *thr); + +DUK_INTERNAL_DECL void duk_hthread_callstack_grow(duk_hthread *thr); +DUK_INTERNAL_DECL void duk_hthread_callstack_shrink_check(duk_hthread *thr); +DUK_INTERNAL_DECL void duk_hthread_callstack_unwind(duk_hthread *thr, duk_size_t new_top); +DUK_INTERNAL_DECL void duk_hthread_catchstack_grow(duk_hthread *thr); +DUK_INTERNAL_DECL void duk_hthread_catchstack_shrink_check(duk_hthread *thr); +DUK_INTERNAL_DECL void duk_hthread_catchstack_unwind(duk_hthread *thr, duk_size_t new_top); + +DUK_INTERNAL_DECL duk_activation *duk_hthread_get_current_activation(duk_hthread *thr); +DUK_INTERNAL_DECL void *duk_hthread_get_valstack_ptr(duk_heap *heap, void *ud); /* indirect allocs */ +DUK_INTERNAL_DECL void *duk_hthread_get_callstack_ptr(duk_heap *heap, void *ud); /* indirect allocs */ +DUK_INTERNAL_DECL void *duk_hthread_get_catchstack_ptr(duk_heap *heap, void *ud); /* indirect allocs */ + +#if defined(DUK_USE_DEBUGGER_SUPPORT) +DUK_INTERNAL_DECL duk_uint_fast32_t duk_hthread_get_act_curr_pc(duk_hthread *thr, duk_activation *act); +#endif +DUK_INTERNAL_DECL duk_uint_fast32_t duk_hthread_get_act_prev_pc(duk_hthread *thr, duk_activation *act); +DUK_INTERNAL_DECL void duk_hthread_sync_currpc(duk_hthread *thr); +DUK_INTERNAL_DECL void duk_hthread_sync_and_null_currpc(duk_hthread *thr); + +#endif /* DUK_HTHREAD_H_INCLUDED */ +#line 1 "duk_hbuffer.h" +/* + * Heap buffer representation. + * + * Heap allocated user data buffer which is either: + * + * 1. A fixed size buffer (data follows header statically) + * 2. A dynamic size buffer (data pointer follows header) + * + * The data pointer for a variable size buffer of zero size may be NULL. + */ + +#ifndef DUK_HBUFFER_H_INCLUDED +#define DUK_HBUFFER_H_INCLUDED + +/* + * Flags + * + * Fixed buffer: 0 + * Dynamic buffer: DUK_HBUFFER_FLAG_DYNAMIC + * External buffer: DUK_HBUFFER_FLAG_DYNAMIC | DUK_HBUFFER_FLAG_EXTERNAL + */ + +#define DUK_HBUFFER_FLAG_DYNAMIC DUK_HEAPHDR_USER_FLAG(0) /* buffer is behind a pointer, dynamic or external */ +#define DUK_HBUFFER_FLAG_EXTERNAL DUK_HEAPHDR_USER_FLAG(1) /* buffer pointer is to an externally allocated buffer */ + +#define DUK_HBUFFER_HAS_DYNAMIC(x) DUK_HEAPHDR_CHECK_FLAG_BITS(&(x)->hdr, DUK_HBUFFER_FLAG_DYNAMIC) +#define DUK_HBUFFER_HAS_EXTERNAL(x) DUK_HEAPHDR_CHECK_FLAG_BITS(&(x)->hdr, DUK_HBUFFER_FLAG_EXTERNAL) + +#define DUK_HBUFFER_SET_DYNAMIC(x) DUK_HEAPHDR_SET_FLAG_BITS(&(x)->hdr, DUK_HBUFFER_FLAG_DYNAMIC) +#define DUK_HBUFFER_SET_EXTERNAL(x) DUK_HEAPHDR_SET_FLAG_BITS(&(x)->hdr, DUK_HBUFFER_FLAG_EXTERNAL) + +#define DUK_HBUFFER_CLEAR_DYNAMIC(x) DUK_HEAPHDR_CLEAR_FLAG_BITS(&(x)->hdr, DUK_HBUFFER_FLAG_DYNAMIC) +#define DUK_HBUFFER_CLEAR_EXTERNAL(x) DUK_HEAPHDR_CLEAR_FLAG_BITS(&(x)->hdr, DUK_HBUFFER_FLAG_EXTERNAL) + +/* + * Misc defines + */ + +/* Impose a maximum buffer length for now. Restricted artificially to + * ensure resize computations or adding a heap header length won't + * overflow size_t and that a signed duk_int_t can hold a buffer + * length. The limit should be synchronized with DUK_HSTRING_MAX_BYTELEN. + */ + +#if defined(DUK_USE_BUFLEN16) +#define DUK_HBUFFER_MAX_BYTELEN (0x0000ffffUL) +#else +/* Intentionally not 0x7fffffffUL; at least JSON code expects that + * 2*len + 2 fits in 32 bits. + */ +#define DUK_HBUFFER_MAX_BYTELEN (0x7ffffffeUL) +#endif + +/* + * Field access + */ + +/* Get/set the current user visible size, without accounting for a dynamic + * buffer's "spare" (= usable size). + */ +#if defined(DUK_USE_BUFLEN16) +/* size stored in duk_heaphdr unused flag bits */ +#define DUK_HBUFFER_GET_SIZE(x) ((x)->hdr.h_flags >> 16) +#define DUK_HBUFFER_SET_SIZE(x,v) do { \ + duk_size_t duk__v; \ + duk__v = (v); \ + DUK_ASSERT(duk__v <= 0xffffUL); \ + (x)->hdr.h_flags = ((x)->hdr.h_flags & 0x0000ffffUL) | (((duk_uint32_t) duk__v) << 16); \ + } while (0) +#define DUK_HBUFFER_ADD_SIZE(x,dv) do { \ + (x)->hdr.h_flags += ((dv) << 16); \ + } while (0) +#define DUK_HBUFFER_SUB_SIZE(x,dv) do { \ + (x)->hdr.h_flags -= ((dv) << 16); \ + } while (0) +#else +#define DUK_HBUFFER_GET_SIZE(x) (((duk_hbuffer *) (x))->size) +#define DUK_HBUFFER_SET_SIZE(x,v) do { \ + ((duk_hbuffer *) (x))->size = (v); \ + } while (0) +#define DUK_HBUFFER_ADD_SIZE(x,dv) do { \ + (x)->size += (dv); \ + } while (0) +#define DUK_HBUFFER_SUB_SIZE(x,dv) do { \ + (x)->size -= (dv); \ + } while (0) +#endif + +#define DUK_HBUFFER_FIXED_GET_SIZE(x) DUK_HBUFFER_GET_SIZE((duk_hbuffer *) (x)) +#define DUK_HBUFFER_FIXED_SET_SIZE(x,v) DUK_HBUFFER_SET_SIZE((duk_hbuffer *) (x)) + +#define DUK_HBUFFER_DYNAMIC_GET_SIZE(x) DUK_HBUFFER_GET_SIZE((duk_hbuffer *) (x)) +#define DUK_HBUFFER_DYNAMIC_SET_SIZE(x,v) DUK_HBUFFER_SET_SIZE((duk_hbuffer *) (x), (v)) +#define DUK_HBUFFER_DYNAMIC_ADD_SIZE(x,dv) DUK_HBUFFER_ADD_SIZE((duk_hbuffer *) (x), (dv)) +#define DUK_HBUFFER_DYNAMIC_SUB_SIZE(x,dv) DUK_HBUFFER_SUB_SIZE((duk_hbuffer *) (x), (dv)) + +#define DUK_HBUFFER_EXTERNAL_GET_SIZE(x) DUK_HBUFFER_GET_SIZE((duk_hbuffer *) (x)) +#define DUK_HBUFFER_EXTERNAL_SET_SIZE(x,v) DUK_HBUFFER_SET_SIZE((duk_hbuffer *) (x), (v)) + +#define DUK_HBUFFER_FIXED_GET_DATA_PTR(heap,x) ((duk_uint8_t *) (((duk_hbuffer_fixed *) (x)) + 1)) + +#if defined(DUK_USE_HEAPPTR16) +#define DUK_HBUFFER_DYNAMIC_GET_DATA_PTR(heap,x) \ + ((void *) DUK_USE_HEAPPTR_DEC16((heap)->heap_udata, ((duk_heaphdr *) (x))->h_extra16)) +#define DUK_HBUFFER_DYNAMIC_SET_DATA_PTR(heap,x,v) do { \ + ((duk_heaphdr *) (x))->h_extra16 = DUK_USE_HEAPPTR_ENC16((heap)->heap_udata, (void *) (v)); \ + } while (0) +#define DUK_HBUFFER_DYNAMIC_SET_DATA_PTR_NULL(heap,x) do { \ + ((duk_heaphdr *) (x))->h_extra16 = 0; /* assume 0 <=> NULL */ \ + } while (0) +#else +#define DUK_HBUFFER_DYNAMIC_GET_DATA_PTR(heap,x) ((x)->curr_alloc) +#define DUK_HBUFFER_DYNAMIC_SET_DATA_PTR(heap,x,v) do { \ + (x)->curr_alloc = (void *) (v); \ + } while (0) +#define DUK_HBUFFER_DYNAMIC_SET_DATA_PTR_NULL(heap,x) do { \ + (x)->curr_alloc = (void *) NULL; \ + } while (0) +#endif + +/* No pointer compression because pointer is potentially outside of + * Duktape heap. + */ +#if defined(DUK_USE_HEAPPTR16) +#define DUK_HBUFFER_EXTERNAL_GET_DATA_PTR(heap,x) \ + ((void *) (x)->curr_alloc) +#define DUK_HBUFFER_EXTERNAL_SET_DATA_PTR(heap,x,v) do { \ + (x)->curr_alloc = (void *) (v); \ + } while (0) +#define DUK_HBUFFER_EXTERNAL_SET_DATA_PTR_NULL(heap,x) do { \ + (x)->curr_alloc = (void *) NULL; \ + } while (0) +#else +#define DUK_HBUFFER_EXTERNAL_GET_DATA_PTR(heap,x) \ + ((void *) (x)->curr_alloc) +#define DUK_HBUFFER_EXTERNAL_SET_DATA_PTR(heap,x,v) do { \ + (x)->curr_alloc = (void *) (v); \ + } while (0) +#define DUK_HBUFFER_EXTERNAL_SET_DATA_PTR_NULL(heap,x) do { \ + (x)->curr_alloc = (void *) NULL; \ + } while (0) +#endif + +/* Get a pointer to the current buffer contents (matching current allocation + * size). May be NULL for zero size dynamic/external buffer. + */ +#if defined(DUK_USE_HEAPPTR16) +#define DUK_HBUFFER_GET_DATA_PTR(heap,x) ( \ + DUK_HBUFFER_HAS_DYNAMIC((x)) ? \ + ( \ + DUK_HBUFFER_HAS_EXTERNAL((x)) ? \ + DUK_HBUFFER_EXTERNAL_GET_DATA_PTR((heap), (duk_hbuffer_external *) (x)) : \ + DUK_HBUFFER_DYNAMIC_GET_DATA_PTR((heap), (duk_hbuffer_dynamic *) (x)) \ + ) : \ + DUK_HBUFFER_FIXED_GET_DATA_PTR((heap), (duk_hbuffer_fixed *) (x)) \ + ) +#else +/* Without heap pointer compression duk_hbuffer_dynamic and duk_hbuffer_external + * have the same layout so checking for fixed vs. dynamic (or external) is enough. + */ +#define DUK_HBUFFER_GET_DATA_PTR(heap,x) ( \ + DUK_HBUFFER_HAS_DYNAMIC((x)) ? \ + DUK_HBUFFER_DYNAMIC_GET_DATA_PTR((heap), (duk_hbuffer_dynamic *) (x)) : \ + DUK_HBUFFER_FIXED_GET_DATA_PTR((heap), (duk_hbuffer_fixed *) (x)) \ + ) +#endif + +/* + * Structs + */ + +/* Shared prefix for all buffer types. */ +struct duk_hbuffer { + duk_heaphdr hdr; + + /* It's not strictly necessary to track the current size, but + * it is useful for writing robust native code. + */ + + /* Current size (not counting a dynamic buffer's "spare"). */ +#if defined(DUK_USE_BUFLEN16) + /* Stored in duk_heaphdr unused flags. */ +#else + duk_size_t size; +#endif + + /* + * Data following the header depends on the DUK_HBUFFER_FLAG_DYNAMIC + * flag. + * + * If the flag is clear (the buffer is a fixed size one), the buffer + * data follows the header directly, consisting of 'size' bytes. + * + * If the flag is set, the actual buffer is allocated separately, and + * a few control fields follow the header. Specifically: + * + * - a "void *" pointing to the current allocation + * - a duk_size_t indicating the full allocated size (always >= 'size') + * + * If DUK_HBUFFER_FLAG_EXTERNAL is set, the buffer has been allocated + * by user code, so that Duktape won't be able to resize it and won't + * free it. This allows buffers to point to e.g. an externally + * allocated structure such as a frame buffer. + * + * Unlike strings, no terminator byte (NUL) is guaranteed after the + * data. This would be convenient, but would pad aligned user buffers + * unnecessarily upwards in size. For instance, if user code requested + * a 64-byte dynamic buffer, 65 bytes would actually be allocated which + * would then potentially round upwards to perhaps 68 or 72 bytes. + */ +}; + +/* Fixed buffer; data follows struct, with proper alignment guaranteed by + * struct size. + */ +#if (DUK_USE_ALIGN_BY == 8) && defined(DUK_USE_PACK_MSVC_PRAGMA) +#pragma pack(push, 8) +#endif +struct duk_hbuffer_fixed { + /* A union is used here as a portable struct size / alignment trick: + * by adding a 32-bit or a 64-bit (unused) union member, the size of + * the struct is effectively forced to be a multiple of 4 or 8 bytes + * (respectively) without increasing the size of the struct unless + * necessary. + */ + union { + struct { + duk_heaphdr hdr; +#if defined(DUK_USE_BUFLEN16) + /* Stored in duk_heaphdr unused flags. */ +#else + duk_size_t size; +#endif + } s; +#if (DUK_USE_ALIGN_BY == 4) + duk_uint32_t dummy_for_align4; +#elif (DUK_USE_ALIGN_BY == 8) + duk_double_t dummy_for_align8; +#elif (DUK_USE_ALIGN_BY == 1) + /* no extra padding */ +#else +#error invalid DUK_USE_ALIGN_BY +#endif + } u; + + /* + * Data follows the struct header. The struct size is padded by the + * compiler based on the struct members. This guarantees that the + * buffer data will be aligned-by-4 but not necessarily aligned-by-8. + * + * On platforms where alignment does not matter, the struct padding + * could be removed (if there is any). On platforms where alignment + * by 8 is required, the struct size must be forced to be a multiple + * of 8 by some means. Without it, some user code may break, and also + * Duktape itself breaks (e.g. the compiler stores duk_tvals in a + * dynamic buffer). + */ +} +#if (DUK_USE_ALIGN_BY == 8) && defined(DUK_USE_PACK_GCC_ATTR) +__attribute__ ((aligned (8))) +#elif (DUK_USE_ALIGN_BY == 8) && defined(DUK_USE_PACK_CLANG_ATTR) +__attribute__ ((aligned (8))) +#endif +; +#if (DUK_USE_ALIGN_BY == 8) && defined(DUK_USE_PACK_MSVC_PRAGMA) +#pragma pack(pop) +#endif + +/* Dynamic buffer with 'curr_alloc' pointing to a dynamic area allocated using + * heap allocation primitives. Also used for external buffers when low memory + * options are not used. + */ +struct duk_hbuffer_dynamic { + duk_heaphdr hdr; + +#if defined(DUK_USE_BUFLEN16) + /* Stored in duk_heaphdr unused flags. */ +#else + duk_size_t size; +#endif + +#if defined(DUK_USE_HEAPPTR16) + /* Stored in duk_heaphdr h_extra16. */ +#else + void *curr_alloc; /* may be NULL if alloc_size == 0 */ +#endif + + /* + * Allocation size for 'curr_alloc' is alloc_size. There is no + * automatic NUL terminator for buffers (see above for rationale). + * + * 'curr_alloc' is explicitly allocated with heap allocation + * primitives and will thus always have alignment suitable for + * e.g. duk_tval and an IEEE double. + */ +}; + +/* External buffer with 'curr_alloc' managed by user code and pointing to an + * arbitrary address. When heap pointer compression is not used, this struct + * has the same layout as duk_hbuffer_dynamic. + */ +struct duk_hbuffer_external { + duk_heaphdr hdr; + +#if defined(DUK_USE_BUFLEN16) + /* Stored in duk_heaphdr unused flags. */ +#else + duk_size_t size; +#endif + + /* Cannot be compressed as a heap pointer because may point to + * an arbitrary address. + */ + void *curr_alloc; /* may be NULL if alloc_size == 0 */ +}; + +/* + * Prototypes + */ + +DUK_INTERNAL_DECL duk_hbuffer *duk_hbuffer_alloc(duk_heap *heap, duk_size_t size, duk_small_uint_t flags, void **out_bufdata); +DUK_INTERNAL_DECL void *duk_hbuffer_get_dynalloc_ptr(duk_heap *heap, void *ud); /* indirect allocs */ + +/* dynamic buffer ops */ +DUK_INTERNAL_DECL void duk_hbuffer_resize(duk_hthread *thr, duk_hbuffer_dynamic *buf, duk_size_t new_size); +DUK_INTERNAL_DECL void duk_hbuffer_reset(duk_hthread *thr, duk_hbuffer_dynamic *buf); + +#endif /* DUK_HBUFFER_H_INCLUDED */ +#line 1 "duk_heap.h" +/* + * Heap structure. + * + * Heap contains allocated heap objects, interned strings, and built-in + * strings for one or more threads. + */ + +#ifndef DUK_HEAP_H_INCLUDED +#define DUK_HEAP_H_INCLUDED + +/* alloc function typedefs in duktape.h */ + +/* + * Heap flags + */ + +#define DUK_HEAP_FLAG_MARKANDSWEEP_RUNNING (1 << 0) /* mark-and-sweep is currently running */ +#define DUK_HEAP_FLAG_MARKANDSWEEP_RECLIMIT_REACHED (1 << 1) /* mark-and-sweep marking reached a recursion limit and must use multi-pass marking */ +#define DUK_HEAP_FLAG_REFZERO_FREE_RUNNING (1 << 2) /* refcount code is processing refzero list */ +#define DUK_HEAP_FLAG_ERRHANDLER_RUNNING (1 << 3) /* an error handler (user callback to augment/replace error) is running */ +#define DUK_HEAP_FLAG_INTERRUPT_RUNNING (1 << 4) /* executor interrupt running (used to avoid nested interrupts) */ +#define DUK_HEAP_FLAG_FINALIZER_NORESCUE (1 << 5) /* heap destruction ongoing, finalizer rescue no longer possible */ + +#define DUK__HEAP_HAS_FLAGS(heap,bits) ((heap)->flags & (bits)) +#define DUK__HEAP_SET_FLAGS(heap,bits) do { \ + (heap)->flags |= (bits); \ + } while (0) +#define DUK__HEAP_CLEAR_FLAGS(heap,bits) do { \ + (heap)->flags &= ~(bits); \ + } while (0) + +#define DUK_HEAP_HAS_MARKANDSWEEP_RUNNING(heap) DUK__HEAP_HAS_FLAGS((heap), DUK_HEAP_FLAG_MARKANDSWEEP_RUNNING) +#define DUK_HEAP_HAS_MARKANDSWEEP_RECLIMIT_REACHED(heap) DUK__HEAP_HAS_FLAGS((heap), DUK_HEAP_FLAG_MARKANDSWEEP_RECLIMIT_REACHED) +#define DUK_HEAP_HAS_REFZERO_FREE_RUNNING(heap) DUK__HEAP_HAS_FLAGS((heap), DUK_HEAP_FLAG_REFZERO_FREE_RUNNING) +#define DUK_HEAP_HAS_ERRHANDLER_RUNNING(heap) DUK__HEAP_HAS_FLAGS((heap), DUK_HEAP_FLAG_ERRHANDLER_RUNNING) +#define DUK_HEAP_HAS_INTERRUPT_RUNNING(heap) DUK__HEAP_HAS_FLAGS((heap), DUK_HEAP_FLAG_INTERRUPT_RUNNING) +#define DUK_HEAP_HAS_FINALIZER_NORESCUE(heap) DUK__HEAP_HAS_FLAGS((heap), DUK_HEAP_FLAG_FINALIZER_NORESCUE) + +#define DUK_HEAP_SET_MARKANDSWEEP_RUNNING(heap) DUK__HEAP_SET_FLAGS((heap), DUK_HEAP_FLAG_MARKANDSWEEP_RUNNING) +#define DUK_HEAP_SET_MARKANDSWEEP_RECLIMIT_REACHED(heap) DUK__HEAP_SET_FLAGS((heap), DUK_HEAP_FLAG_MARKANDSWEEP_RECLIMIT_REACHED) +#define DUK_HEAP_SET_REFZERO_FREE_RUNNING(heap) DUK__HEAP_SET_FLAGS((heap), DUK_HEAP_FLAG_REFZERO_FREE_RUNNING) +#define DUK_HEAP_SET_ERRHANDLER_RUNNING(heap) DUK__HEAP_SET_FLAGS((heap), DUK_HEAP_FLAG_ERRHANDLER_RUNNING) +#define DUK_HEAP_SET_INTERRUPT_RUNNING(heap) DUK__HEAP_SET_FLAGS((heap), DUK_HEAP_FLAG_INTERRUPT_RUNNING) +#define DUK_HEAP_SET_FINALIZER_NORESCUE(heap) DUK__HEAP_SET_FLAGS((heap), DUK_HEAP_FLAG_FINALIZER_NORESCUE) + +#define DUK_HEAP_CLEAR_MARKANDSWEEP_RUNNING(heap) DUK__HEAP_CLEAR_FLAGS((heap), DUK_HEAP_FLAG_MARKANDSWEEP_RUNNING) +#define DUK_HEAP_CLEAR_MARKANDSWEEP_RECLIMIT_REACHED(heap) DUK__HEAP_CLEAR_FLAGS((heap), DUK_HEAP_FLAG_MARKANDSWEEP_RECLIMIT_REACHED) +#define DUK_HEAP_CLEAR_REFZERO_FREE_RUNNING(heap) DUK__HEAP_CLEAR_FLAGS((heap), DUK_HEAP_FLAG_REFZERO_FREE_RUNNING) +#define DUK_HEAP_CLEAR_ERRHANDLER_RUNNING(heap) DUK__HEAP_CLEAR_FLAGS((heap), DUK_HEAP_FLAG_ERRHANDLER_RUNNING) +#define DUK_HEAP_CLEAR_INTERRUPT_RUNNING(heap) DUK__HEAP_CLEAR_FLAGS((heap), DUK_HEAP_FLAG_INTERRUPT_RUNNING) +#define DUK_HEAP_CLEAR_FINALIZER_NORESCUE(heap) DUK__HEAP_CLEAR_FLAGS((heap), DUK_HEAP_FLAG_FINALIZER_NORESCUE) + +/* + * Longjmp types, also double as identifying continuation type for a rethrow (in 'finally') + */ + +#define DUK_LJ_TYPE_UNKNOWN 0 /* unused */ +#define DUK_LJ_TYPE_THROW 1 /* value1 -> error object */ +#define DUK_LJ_TYPE_YIELD 2 /* value1 -> yield value, iserror -> error / normal */ +#define DUK_LJ_TYPE_RESUME 3 /* value1 -> resume value, value2 -> resumee thread, iserror -> error/normal */ +#define DUK_LJ_TYPE_BREAK 4 /* value1 -> label number, pseudo-type to indicate a break continuation (for ENDFIN) */ +#define DUK_LJ_TYPE_CONTINUE 5 /* value1 -> label number, pseudo-type to indicate a continue continuation (for ENDFIN) */ +#define DUK_LJ_TYPE_RETURN 6 /* value1 -> return value, pseudo-type to indicate a return continuation (for ENDFIN) */ +#define DUK_LJ_TYPE_NORMAL 7 /* no value, pseudo-type to indicate a normal continuation (for ENDFIN) */ + +/* + * Mark-and-sweep flags + * + * These are separate from heap level flags now but could be merged. + * The heap structure only contains a 'base mark-and-sweep flags' + * field and the GC caller can impose further flags. + */ + +#define DUK_MS_FLAG_EMERGENCY (1 << 0) /* emergency mode: try extra hard */ +#define DUK_MS_FLAG_NO_STRINGTABLE_RESIZE (1 << 1) /* don't resize stringtable (but may sweep it); needed during stringtable resize */ +#define DUK_MS_FLAG_NO_OBJECT_COMPACTION (1 << 2) /* don't compact objects; needed during object property allocation resize */ +#define DUK_MS_FLAG_NO_FINALIZERS (1 << 3) /* don't run finalizers; leave finalizable objects in finalize_list for next round */ +#define DUK_MS_FLAG_SKIP_FINALIZERS (1 << 4) /* don't run finalizers; queue finalizable objects back to heap_allocated */ + +/* + * Thread switching + * + * To switch heap->curr_thread, use the macro below so that interrupt counters + * get updated correctly. The macro allows a NULL target thread because that + * happens e.g. in call handling. + */ + +#if defined(DUK_USE_INTERRUPT_COUNTER) +#define DUK_HEAP_SWITCH_THREAD(heap,newthr) duk_heap_switch_thread((heap), (newthr)) +#else +#define DUK_HEAP_SWITCH_THREAD(heap,newthr) do { \ + (heap)->curr_thread = (newthr); \ + } while (0) +#endif + +/* + * Other heap related defines + */ + +/* Mark-and-sweep interval is relative to combined count of objects and + * strings kept in the heap during the latest mark-and-sweep pass. + * Fixed point .8 multiplier and .0 adder. Trigger count (interval) is + * decreased by each (re)allocation attempt (regardless of size), and each + * refzero processed object. + * + * 'SKIP' indicates how many (re)allocations to wait until a retry if + * GC is skipped because there is no thread do it with yet (happens + * only during init phases). + */ +#if defined(DUK_USE_MARK_AND_SWEEP) +#if defined(DUK_USE_REFERENCE_COUNTING) +#define DUK_HEAP_MARK_AND_SWEEP_TRIGGER_MULT 12800L /* 50x heap size */ +#define DUK_HEAP_MARK_AND_SWEEP_TRIGGER_ADD 1024L +#define DUK_HEAP_MARK_AND_SWEEP_TRIGGER_SKIP 256L +#else +#define DUK_HEAP_MARK_AND_SWEEP_TRIGGER_MULT 256L /* 1x heap size */ +#define DUK_HEAP_MARK_AND_SWEEP_TRIGGER_ADD 1024L +#define DUK_HEAP_MARK_AND_SWEEP_TRIGGER_SKIP 256L +#endif +#endif + +/* Stringcache is used for speeding up char-offset-to-byte-offset + * translations for non-ASCII strings. + */ +#define DUK_HEAP_STRCACHE_SIZE 4 +#define DUK_HEAP_STRINGCACHE_NOCACHE_LIMIT 16 /* strings up to the this length are not cached */ + +/* helper to insert a (non-string) heap object into heap allocated list */ +#define DUK_HEAP_INSERT_INTO_HEAP_ALLOCATED(heap,hdr) duk_heap_insert_into_heap_allocated((heap),(hdr)) + +/* + * Stringtable + */ + +/* initial stringtable size, must be prime and higher than DUK_UTIL_MIN_HASH_PRIME */ +#define DUK_STRTAB_INITIAL_SIZE 17 + +/* indicates a deleted string; any fixed non-NULL, non-hstring pointer works */ +#define DUK_STRTAB_DELETED_MARKER(heap) ((duk_hstring *) heap) + +/* resizing parameters */ +#define DUK_STRTAB_MIN_FREE_DIVISOR 4 /* load factor max 75% */ +#define DUK_STRTAB_MIN_USED_DIVISOR 4 /* load factor min 25% */ +#define DUK_STRTAB_GROW_ST_SIZE(n) ((n) + (n)) /* used entries + approx 100% -> reset load to 50% */ + +#define DUK_STRTAB_U32_MAX_STRLEN 10 /* 4'294'967'295 */ +#define DUK_STRTAB_HIGHEST_32BIT_PRIME 0xfffffffbUL + +/* probe sequence (open addressing) */ +#define DUK_STRTAB_HASH_INITIAL(hash,h_size) ((hash) % (h_size)) +#define DUK_STRTAB_HASH_PROBE_STEP(hash) DUK_UTIL_GET_HASH_PROBE_STEP((hash)) + +/* fixed top level hashtable size (separate chaining) */ +#define DUK_STRTAB_CHAIN_SIZE DUK_USE_STRTAB_CHAIN_SIZE + +/* + * Built-in strings + */ + +/* heap string indices are autogenerated in duk_strings.h */ +#if defined(DUK_USE_ROM_STRINGS) +#define DUK_HEAP_GET_STRING(heap,idx) \ + ((duk_hstring *) DUK_LOSE_CONST(duk_rom_strings_stridx[(idx)])) +#else /* DUK_USE_ROM_STRINGS */ +#if defined(DUK_USE_HEAPPTR16) +#define DUK_HEAP_GET_STRING(heap,idx) \ + ((duk_hstring *) DUK_USE_HEAPPTR_DEC16((heap)->heap_udata, (heap)->strs16[(idx)])) +#else +#define DUK_HEAP_GET_STRING(heap,idx) \ + ((heap)->strs[(idx)]) +#endif +#endif /* DUK_USE_ROM_STRINGS */ + +/* + * Raw memory calls: relative to heap, but no GC interaction + */ + +#define DUK_ALLOC_RAW(heap,size) \ + ((heap)->alloc_func((heap)->heap_udata, (size))) + +#define DUK_REALLOC_RAW(heap,ptr,newsize) \ + ((heap)->realloc_func((heap)->heap_udata, (void *) (ptr), (newsize))) + +#define DUK_FREE_RAW(heap,ptr) \ + ((heap)->free_func((heap)->heap_udata, (void *) (ptr))) + +/* + * Memory calls: relative to heap, GC interaction, but no error throwing. + * + * XXX: Currently a mark-and-sweep triggered by memory allocation will run + * using the heap->heap_thread. This thread is also used for running + * mark-and-sweep finalization; this is not ideal because it breaks the + * isolation between multiple global environments. + * + * Notes: + * + * - DUK_FREE() is required to ignore NULL and any other possible return + * value of a zero-sized alloc/realloc (same as ANSI C free()). + * + * - There is no DUK_REALLOC_ZEROED because we don't assume to know the + * old size. Caller must zero the reallocated memory. + * + * - DUK_REALLOC_INDIRECT() must be used when a mark-and-sweep triggered + * by an allocation failure might invalidate the original 'ptr', thus + * causing a realloc retry to use an invalid pointer. Example: we're + * reallocating the value stack and a finalizer resizes the same value + * stack during mark-and-sweep. The indirect variant requests for the + * current location of the pointer being reallocated using a callback + * right before every realloc attempt; this circuitous approach is used + * to avoid strict aliasing issues in a more straightforward indirect + * pointer (void **) approach. Note: the pointer in the storage + * location is read but is NOT updated; the caller must do that. + */ + +/* callback for indirect reallocs, request for current pointer */ +typedef void *(*duk_mem_getptr)(duk_heap *heap, void *ud); + +#define DUK_ALLOC(heap,size) duk_heap_mem_alloc((heap), (size)) +#define DUK_ALLOC_ZEROED(heap,size) duk_heap_mem_alloc_zeroed((heap), (size)) +#define DUK_REALLOC(heap,ptr,newsize) duk_heap_mem_realloc((heap), (ptr), (newsize)) +#define DUK_REALLOC_INDIRECT(heap,cb,ud,newsize) duk_heap_mem_realloc_indirect((heap), (cb), (ud), (newsize)) +#define DUK_FREE(heap,ptr) duk_heap_mem_free((heap), (ptr)) + +/* + * Memory constants + */ + +#define DUK_HEAP_ALLOC_FAIL_MARKANDSWEEP_LIMIT 5 /* Retry allocation after mark-and-sweep for this + * many times. A single mark-and-sweep round is + * not guaranteed to free all unreferenced memory + * because of finalization (in fact, ANY number of + * rounds is strictly not enough). + */ + +#define DUK_HEAP_ALLOC_FAIL_MARKANDSWEEP_EMERGENCY_LIMIT 3 /* Starting from this round, use emergency mode + * for mark-and-sweep. + */ + +/* + * Debugger support + */ + +/* Maximum number of breakpoints. Only breakpoints that are set are + * consulted so increasing this has no performance impact. + */ +#define DUK_HEAP_MAX_BREAKPOINTS 16 + +/* Opcode interval for a Date-based status/peek rate limit check. Only + * relevant when debugger is attached. Requesting a timestamp may be a + * slow operation on some platforms so this shouldn't be too low. On the + * other hand a high value makes Duktape react to a pause request slowly. + */ +#define DUK_HEAP_DBG_RATELIMIT_OPCODES 4000 + +/* Milliseconds between status notify and transport peeks. */ +#define DUK_HEAP_DBG_RATELIMIT_MILLISECS 200 + +/* Step types */ +#define DUK_STEP_TYPE_NONE 0 +#define DUK_STEP_TYPE_INTO 1 +#define DUK_STEP_TYPE_OVER 2 +#define DUK_STEP_TYPE_OUT 3 + +struct duk_breakpoint { + duk_hstring *filename; + duk_uint32_t line; +}; + +#if defined(DUK_USE_DEBUGGER_SUPPORT) +#define DUK_HEAP_IS_DEBUGGER_ATTACHED(heap) ((heap)->dbg_read_cb != NULL) +#define DUK_HEAP_CLEAR_STEP_STATE(heap) do { \ + (heap)->dbg_step_type = DUK_STEP_TYPE_NONE; \ + (heap)->dbg_step_thread = NULL; \ + (heap)->dbg_step_csindex = 0; \ + (heap)->dbg_step_startline = 0; \ + } while (0) +#define DUK_HEAP_SET_PAUSED(heap) do { \ + (heap)->dbg_paused = 1; \ + (heap)->dbg_state_dirty = 1; \ + DUK_HEAP_CLEAR_STEP_STATE((heap)); \ + } while (0) +#define DUK_HEAP_CLEAR_PAUSED(heap) do { \ + (heap)->dbg_paused = 0; \ + (heap)->dbg_state_dirty = 1; \ + DUK_HEAP_CLEAR_STEP_STATE((heap)); \ + } while (0) +#define DUK_HEAP_IS_PAUSED(heap) ((heap)->dbg_paused) +#endif /* DUK_USE_DEBUGGER_SUPPORT */ + +/* + * String cache should ideally be at duk_hthread level, but that would + * cause string finalization to slow down relative to the number of + * threads; string finalization must check the string cache for "weak" + * references to the string being finalized to avoid dead pointers. + * + * Thus, string caches are now at the heap level now. + */ + +struct duk_strcache { + duk_hstring *h; + duk_uint32_t bidx; + duk_uint32_t cidx; +}; + +/* + * Longjmp state, contains the information needed to perform a longjmp. + * Longjmp related values are written to value1, value2, and iserror. + */ + +struct duk_ljstate { + duk_jmpbuf *jmpbuf_ptr; /* current setjmp() catchpoint */ + duk_small_uint_t type; /* longjmp type */ + duk_bool_t iserror; /* isError flag for yield */ + duk_tval value1; /* 1st related value (type specific) */ + duk_tval value2; /* 2nd related value (type specific) */ +}; + +/* + * Stringtable entry for fixed size stringtable + */ + +struct duk_strtab_entry { +#if defined(DUK_USE_HEAPPTR16) + /* A 16-bit listlen makes sense with 16-bit heap pointers: there + * won't be space for 64k strings anyway. + */ + duk_uint16_t listlen; /* if 0, 'str16' used, if > 0, 'strlist16' used */ + union { + duk_uint16_t strlist16; + duk_uint16_t str16; + } u; +#else + duk_size_t listlen; /* if 0, 'str' used, if > 0, 'strlist' used */ + union { + duk_hstring **strlist; + duk_hstring *str; + } u; +#endif +}; + +/* + * Main heap structure + */ + +struct duk_heap { + duk_small_uint_t flags; + + /* Allocator functions. */ + duk_alloc_function alloc_func; + duk_realloc_function realloc_func; + duk_free_function free_func; + + /* Heap udata, used for allocator functions but also for other heap + * level callbacks like pointer compression, etc. + */ + void *heap_udata; + + /* Precomputed pointers when using 16-bit heap pointer packing. */ +#if defined(DUK_USE_HEAPPTR16) + duk_uint16_t heapptr_null16; + duk_uint16_t heapptr_deleted16; +#endif + + /* Fatal error handling, called e.g. when a longjmp() is needed but + * lj.jmpbuf_ptr is NULL. fatal_func must never return; it's not + * declared as "noreturn" because doing that for typedefs is a bit + * challenging portability-wise. + */ + duk_fatal_function fatal_func; + + /* allocated heap objects */ + duk_heaphdr *heap_allocated; + + /* work list for objects whose refcounts are zero but which have not been + * "finalized"; avoids recursive C calls when refcounts go to zero in a + * chain of objects. + */ +#if defined(DUK_USE_REFERENCE_COUNTING) + duk_heaphdr *refzero_list; + duk_heaphdr *refzero_list_tail; +#endif + +#if defined(DUK_USE_MARK_AND_SWEEP) + /* mark-and-sweep control */ +#if defined(DUK_USE_VOLUNTARY_GC) + duk_int_t mark_and_sweep_trigger_counter; +#endif + duk_int_t mark_and_sweep_recursion_depth; + + /* mark-and-sweep flags automatically active (used for critical sections) */ + duk_small_uint_t mark_and_sweep_base_flags; + + /* work list for objects to be finalized (by mark-and-sweep) */ + duk_heaphdr *finalize_list; +#endif + + /* longjmp state */ + duk_ljstate lj; + + /* marker for detecting internal "double faults", see duk_error_throw.c */ + duk_bool_t handling_error; + + /* heap thread, used internally and for finalization */ + duk_hthread *heap_thread; + + /* current thread */ + duk_hthread *curr_thread; /* currently running thread */ + + /* heap level "stash" object (e.g., various reachability roots) */ + duk_hobject *heap_object; + + /* duk_handle_call / duk_handle_safe_call recursion depth limiting */ + duk_int_t call_recursion_depth; + duk_int_t call_recursion_limit; + + /* mix-in value for computing string hashes; should be reasonably unpredictable */ + duk_uint32_t hash_seed; + + /* rnd_state for duk_util_tinyrandom.c */ + duk_uint32_t rnd_state; + + /* For manual debugging: instruction count based on executor and + * interrupt counter book-keeping. Inspect debug logs to see how + * they match up. + */ +#if defined(DUK_USE_INTERRUPT_COUNTER) && defined(DUK_USE_DEBUG) + duk_int_t inst_count_exec; + duk_int_t inst_count_interrupt; +#endif + + /* debugger */ + +#if defined(DUK_USE_DEBUGGER_SUPPORT) + /* callbacks and udata; dbg_read_cb != NULL is used to indicate attached state */ + duk_debug_read_function dbg_read_cb; /* required, NULL implies detached */ + duk_debug_write_function dbg_write_cb; /* required */ + duk_debug_peek_function dbg_peek_cb; + duk_debug_read_flush_function dbg_read_flush_cb; + duk_debug_write_flush_function dbg_write_flush_cb; + duk_debug_request_function dbg_request_cb; + duk_debug_detached_function dbg_detached_cb; + void *dbg_udata; + + /* debugger state, only relevant when attached */ + duk_bool_t dbg_processing; /* currently processing messages or breakpoints: don't enter message processing recursively (e.g. no breakpoints when processing debugger eval) */ + duk_bool_t dbg_paused; /* currently paused: talk with debug client until step/resume */ + duk_bool_t dbg_state_dirty; /* resend state next time executor is about to run */ + duk_bool_t dbg_force_restart; /* force executor restart to recheck breakpoints; used to handle function returns (see GH-303) */ + duk_bool_t dbg_detaching; /* debugger detaching; used to avoid calling detach handler recursively */ + duk_small_uint_t dbg_step_type; /* step type: none, step into, step over, step out */ + duk_hthread *dbg_step_thread; /* borrowed; NULL if no step state (NULLed in unwind) */ + duk_size_t dbg_step_csindex; /* callstack index */ + duk_uint32_t dbg_step_startline; /* starting line number */ + duk_breakpoint dbg_breakpoints[DUK_HEAP_MAX_BREAKPOINTS]; /* breakpoints: [0,breakpoint_count[ gc reachable */ + duk_small_uint_t dbg_breakpoint_count; + duk_breakpoint *dbg_breakpoints_active[DUK_HEAP_MAX_BREAKPOINTS + 1]; /* currently active breakpoints: NULL term, borrowed pointers */ + /* XXX: make active breakpoints actual copies instead of pointers? */ + + /* These are for rate limiting Status notifications and transport peeking. */ + duk_uint32_t dbg_exec_counter; /* cumulative opcode execution count (overflows are OK) */ + duk_uint32_t dbg_last_counter; /* value of dbg_exec_counter when we last did a Date-based check */ + duk_double_t dbg_last_time; /* time when status/peek was last done (Date-based rate limit) */ + + /* Used to support single-byte stream lookahead. */ + duk_bool_t dbg_have_next_byte; + duk_uint8_t dbg_next_byte; +#endif + + /* string intern table (weak refs) */ +#if defined(DUK_USE_STRTAB_PROBE) +#if defined(DUK_USE_HEAPPTR16) + duk_uint16_t *strtable16; +#else + duk_hstring **strtable; +#endif + duk_uint32_t st_size; /* alloc size in elements */ + duk_uint32_t st_used; /* used elements (includes DELETED) */ +#endif + + /* XXX: static alloc is OK until separate chaining stringtable + * resizing is implemented. + */ +#if defined(DUK_USE_STRTAB_CHAIN) + duk_strtab_entry strtable[DUK_STRTAB_CHAIN_SIZE]; +#endif + + /* string access cache (codepoint offset -> byte offset) for fast string + * character looping; 'weak' reference which needs special handling in GC. + */ + duk_strcache strcache[DUK_HEAP_STRCACHE_SIZE]; + + /* built-in strings */ +#if defined(DUK_USE_ROM_STRINGS) + /* No field needed when strings are in ROM. */ +#else +#if defined(DUK_USE_HEAPPTR16) + duk_uint16_t strs16[DUK_HEAP_NUM_STRINGS]; +#else + duk_hstring *strs[DUK_HEAP_NUM_STRINGS]; +#endif +#endif +}; + +/* + * Prototypes + */ + +DUK_INTERNAL_DECL +duk_heap *duk_heap_alloc(duk_alloc_function alloc_func, + duk_realloc_function realloc_func, + duk_free_function free_func, + void *heap_udata, + duk_fatal_function fatal_func); +DUK_INTERNAL_DECL void duk_heap_free(duk_heap *heap); +DUK_INTERNAL_DECL void duk_free_hobject_inner(duk_heap *heap, duk_hobject *h); +DUK_INTERNAL_DECL void duk_free_hbuffer_inner(duk_heap *heap, duk_hbuffer *h); +DUK_INTERNAL_DECL void duk_free_hstring_inner(duk_heap *heap, duk_hstring *h); +DUK_INTERNAL_DECL void duk_heap_free_heaphdr_raw(duk_heap *heap, duk_heaphdr *hdr); + +DUK_INTERNAL_DECL void duk_heap_insert_into_heap_allocated(duk_heap *heap, duk_heaphdr *hdr); +#if defined(DUK_USE_DOUBLE_LINKED_HEAP) && defined(DUK_USE_REFERENCE_COUNTING) +DUK_INTERNAL_DECL void duk_heap_remove_any_from_heap_allocated(duk_heap *heap, duk_heaphdr *hdr); +#endif +#if defined(DUK_USE_INTERRUPT_COUNTER) +DUK_INTERNAL_DECL void duk_heap_switch_thread(duk_heap *heap, duk_hthread *new_thr); +#endif + +#if 0 /*unused*/ +DUK_INTERNAL_DECL duk_hstring *duk_heap_string_lookup(duk_heap *heap, const duk_uint8_t *str, duk_uint32_t blen); +#endif +DUK_INTERNAL_DECL duk_hstring *duk_heap_string_intern(duk_heap *heap, const duk_uint8_t *str, duk_uint32_t blen); +DUK_INTERNAL_DECL duk_hstring *duk_heap_string_intern_checked(duk_hthread *thr, const duk_uint8_t *str, duk_uint32_t len); +#if 0 /*unused*/ +DUK_INTERNAL_DECL duk_hstring *duk_heap_string_lookup_u32(duk_heap *heap, duk_uint32_t val); +#endif +DUK_INTERNAL_DECL duk_hstring *duk_heap_string_intern_u32(duk_heap *heap, duk_uint32_t val); +DUK_INTERNAL_DECL duk_hstring *duk_heap_string_intern_u32_checked(duk_hthread *thr, duk_uint32_t val); +#if defined(DUK_USE_REFERENCE_COUNTING) +DUK_INTERNAL_DECL void duk_heap_string_remove(duk_heap *heap, duk_hstring *h); +#endif +#if defined(DUK_USE_MARK_AND_SWEEP) && defined(DUK_USE_MS_STRINGTABLE_RESIZE) +DUK_INTERNAL_DECL void duk_heap_force_strtab_resize(duk_heap *heap); +#endif +DUK_INTERNAL void duk_heap_free_strtab(duk_heap *heap); +#if defined(DUK_USE_DEBUG) +DUK_INTERNAL void duk_heap_dump_strtab(duk_heap *heap); +#endif + + +DUK_INTERNAL_DECL void duk_heap_strcache_string_remove(duk_heap *heap, duk_hstring *h); +DUK_INTERNAL_DECL duk_uint_fast32_t duk_heap_strcache_offset_char2byte(duk_hthread *thr, duk_hstring *h, duk_uint_fast32_t char_offset); + +#if defined(DUK_USE_PROVIDE_DEFAULT_ALLOC_FUNCTIONS) +DUK_INTERNAL_DECL void *duk_default_alloc_function(void *udata, duk_size_t size); +DUK_INTERNAL_DECL void *duk_default_realloc_function(void *udata, void *ptr, duk_size_t newsize); +DUK_INTERNAL_DECL void duk_default_free_function(void *udata, void *ptr); +#endif + +DUK_INTERNAL_DECL void *duk_heap_mem_alloc(duk_heap *heap, duk_size_t size); +DUK_INTERNAL_DECL void *duk_heap_mem_alloc_zeroed(duk_heap *heap, duk_size_t size); +DUK_INTERNAL_DECL void *duk_heap_mem_realloc(duk_heap *heap, void *ptr, duk_size_t newsize); +DUK_INTERNAL_DECL void *duk_heap_mem_realloc_indirect(duk_heap *heap, duk_mem_getptr cb, void *ud, duk_size_t newsize); +DUK_INTERNAL_DECL void duk_heap_mem_free(duk_heap *heap, void *ptr); + +#ifdef DUK_USE_REFERENCE_COUNTING +#if !defined(DUK_USE_FAST_REFCOUNT_DEFAULT) +DUK_INTERNAL_DECL void duk_tval_incref(duk_tval *tv); +#endif +#if 0 /* unused */ +DUK_INTERNAL_DECL void duk_tval_incref_allownull(duk_tval *tv); +#endif +DUK_INTERNAL_DECL void duk_tval_decref(duk_hthread *thr, duk_tval *tv); +#if 0 /* unused */ +DUK_INTERNAL_DECL void duk_tval_decref_allownull(duk_hthread *thr, duk_tval *tv); +#endif +#if !defined(DUK_USE_FAST_REFCOUNT_DEFAULT) +DUK_INTERNAL_DECL void duk_heaphdr_incref(duk_heaphdr *h); +#endif +#if 0 /* unused */ +DUK_INTERNAL_DECL void duk_heaphdr_incref_allownull(duk_heaphdr *h); +#endif +DUK_INTERNAL_DECL void duk_heaphdr_decref(duk_hthread *thr, duk_heaphdr *h); +DUK_INTERNAL_DECL void duk_heaphdr_decref_allownull(duk_hthread *thr, duk_heaphdr *h); +DUK_INTERNAL_DECL void duk_heaphdr_refzero(duk_hthread *thr, duk_heaphdr *h); +DUK_INTERNAL_DECL void duk_heaphdr_refcount_finalize(duk_hthread *thr, duk_heaphdr *hdr); +#else +/* no refcounting */ +#endif + +#if defined(DUK_USE_MARK_AND_SWEEP) +DUK_INTERNAL_DECL duk_bool_t duk_heap_mark_and_sweep(duk_heap *heap, duk_small_uint_t flags); +#endif + +DUK_INTERNAL_DECL duk_uint32_t duk_heap_hashstring(duk_heap *heap, const duk_uint8_t *str, duk_size_t len); + +#endif /* DUK_HEAP_H_INCLUDED */ +#line 1 "duk_debugger.h" +#ifndef DUK_DEBUGGER_H_INCLUDED +#define DUK_DEBUGGER_H_INCLUDED + +/* Debugger protocol version is defined in the public API header. */ + +/* Initial bytes for markers. */ +#define DUK_DBG_IB_EOM 0x00 +#define DUK_DBG_IB_REQUEST 0x01 +#define DUK_DBG_IB_REPLY 0x02 +#define DUK_DBG_IB_ERROR 0x03 +#define DUK_DBG_IB_NOTIFY 0x04 + +/* Other initial bytes. */ +#define DUK_DBG_IB_INT4 0x10 +#define DUK_DBG_IB_STR4 0x11 +#define DUK_DBG_IB_STR2 0x12 +#define DUK_DBG_IB_BUF4 0x13 +#define DUK_DBG_IB_BUF2 0x14 +#define DUK_DBG_IB_UNUSED 0x15 +#define DUK_DBG_IB_UNDEFINED 0x16 +#define DUK_DBG_IB_NULL 0x17 +#define DUK_DBG_IB_TRUE 0x18 +#define DUK_DBG_IB_FALSE 0x19 +#define DUK_DBG_IB_NUMBER 0x1a +#define DUK_DBG_IB_OBJECT 0x1b +#define DUK_DBG_IB_POINTER 0x1c +#define DUK_DBG_IB_LIGHTFUNC 0x1d +#define DUK_DBG_IB_HEAPPTR 0x1e +/* The short string/integer initial bytes starting from 0x60 don't have + * defines now. + */ + +/* Error codes. */ +#define DUK_DBG_ERR_UNKNOWN 0x00 +#define DUK_DBG_ERR_UNSUPPORTED 0x01 +#define DUK_DBG_ERR_TOOMANY 0x02 +#define DUK_DBG_ERR_NOTFOUND 0x03 +#define DUK_DBG_ERR_APPLICATION 0x04 + +/* Commands and notifys initiated by Duktape. */ +#define DUK_DBG_CMD_STATUS 0x01 +#define DUK_DBG_CMD_PRINT 0x02 +#define DUK_DBG_CMD_ALERT 0x03 +#define DUK_DBG_CMD_LOG 0x04 +#define DUK_DBG_CMD_THROW 0x05 +#define DUK_DBG_CMD_DETACHING 0x06 +#define DUK_DBG_CMD_APPNOTIFY 0x07 + +/* Commands initiated by debug client. */ +#define DUK_DBG_CMD_BASICINFO 0x10 +#define DUK_DBG_CMD_TRIGGERSTATUS 0x11 +#define DUK_DBG_CMD_PAUSE 0x12 +#define DUK_DBG_CMD_RESUME 0x13 +#define DUK_DBG_CMD_STEPINTO 0x14 +#define DUK_DBG_CMD_STEPOVER 0x15 +#define DUK_DBG_CMD_STEPOUT 0x16 +#define DUK_DBG_CMD_LISTBREAK 0x17 +#define DUK_DBG_CMD_ADDBREAK 0x18 +#define DUK_DBG_CMD_DELBREAK 0x19 +#define DUK_DBG_CMD_GETVAR 0x1a +#define DUK_DBG_CMD_PUTVAR 0x1b +#define DUK_DBG_CMD_GETCALLSTACK 0x1c +#define DUK_DBG_CMD_GETLOCALS 0x1d +#define DUK_DBG_CMD_EVAL 0x1e +#define DUK_DBG_CMD_DETACH 0x1f +#define DUK_DBG_CMD_DUMPHEAP 0x20 +#define DUK_DBG_CMD_GETBYTECODE 0x21 +#define DUK_DBG_CMD_APPREQUEST 0x22 +#define DUK_DBG_CMD_GETHEAPOBJINFO 0x23 +#define DUK_DBG_CMD_GETOBJPROPDESC 0x24 +#define DUK_DBG_CMD_GETOBJPROPDESCRANGE 0x25 + +/* The low 8 bits map directly to duk_hobject.h DUK_PROPDESC_FLAG_xxx. + * The remaining flags are specific to the debugger. + */ +#define DUK_DBG_PROPFLAG_INTERNAL (1 << 8) + +#if defined(DUK_USE_DEBUGGER_SUPPORT) +DUK_INTERNAL_DECL void duk_debug_do_detach(duk_heap *heap); + +DUK_INTERNAL_DECL duk_bool_t duk_debug_read_peek(duk_hthread *thr); +DUK_INTERNAL_DECL void duk_debug_write_flush(duk_hthread *thr); + +DUK_INTERNAL_DECL void duk_debug_skip_bytes(duk_hthread *thr, duk_size_t length); +DUK_INTERNAL_DECL void duk_debug_skip_byte(duk_hthread *thr); + +DUK_INTERNAL_DECL void duk_debug_read_bytes(duk_hthread *thr, duk_uint8_t *data, duk_size_t length); +DUK_INTERNAL_DECL duk_uint8_t duk_debug_read_byte(duk_hthread *thr); +DUK_INTERNAL_DECL duk_int32_t duk_debug_read_int(duk_hthread *thr); +DUK_INTERNAL_DECL duk_hstring *duk_debug_read_hstring(duk_hthread *thr); +/* XXX: exposed duk_debug_read_pointer */ +/* XXX: exposed duk_debug_read_buffer */ +/* XXX: exposed duk_debug_read_hbuffer */ +#if 0 +DUK_INTERNAL_DECL duk_heaphdr *duk_debug_read_heapptr(duk_hthread *thr); +#endif +#if defined(DUK_USE_DEBUGGER_INSPECT) +DUK_INTERNAL_DECL duk_heaphdr *duk_debug_read_any_ptr(duk_hthread *thr); +#endif +DUK_INTERNAL_DECL duk_tval *duk_debug_read_tval(duk_hthread *thr); + +DUK_INTERNAL_DECL void duk_debug_write_bytes(duk_hthread *thr, const duk_uint8_t *data, duk_size_t length); +DUK_INTERNAL_DECL void duk_debug_write_byte(duk_hthread *thr, duk_uint8_t x); +DUK_INTERNAL_DECL void duk_debug_write_unused(duk_hthread *thr); +DUK_INTERNAL_DECL void duk_debug_write_undefined(duk_hthread *thr); +#if defined(DUK_USE_DEBUGGER_INSPECT) +DUK_INTERNAL_DECL void duk_debug_write_null(duk_hthread *thr); +#endif +DUK_INTERNAL_DECL void duk_debug_write_boolean(duk_hthread *thr, duk_uint_t val); +DUK_INTERNAL_DECL void duk_debug_write_int(duk_hthread *thr, duk_int32_t x); +DUK_INTERNAL_DECL void duk_debug_write_uint(duk_hthread *thr, duk_uint32_t x); +DUK_INTERNAL_DECL void duk_debug_write_string(duk_hthread *thr, const char *data, duk_size_t length); +DUK_INTERNAL_DECL void duk_debug_write_cstring(duk_hthread *thr, const char *data); +DUK_INTERNAL_DECL void duk_debug_write_hstring(duk_hthread *thr, duk_hstring *h); +DUK_INTERNAL_DECL void duk_debug_write_buffer(duk_hthread *thr, const char *data, duk_size_t length); +DUK_INTERNAL_DECL void duk_debug_write_hbuffer(duk_hthread *thr, duk_hbuffer *h); +DUK_INTERNAL_DECL void duk_debug_write_pointer(duk_hthread *thr, void *ptr); +#if defined(DUK_USE_DEBUGGER_DUMPHEAP) || defined(DUK_USE_DEBUGGER_INSPECT) +DUK_INTERNAL_DECL void duk_debug_write_heapptr(duk_hthread *thr, duk_heaphdr *h); +#endif +DUK_INTERNAL_DECL void duk_debug_write_hobject(duk_hthread *thr, duk_hobject *obj); +DUK_INTERNAL_DECL void duk_debug_write_tval(duk_hthread *thr, duk_tval *tv); +#if 0 /* unused */ +DUK_INTERNAL_DECL void duk_debug_write_request(duk_hthread *thr, duk_small_uint_t command); +#endif +DUK_INTERNAL_DECL void duk_debug_write_reply(duk_hthread *thr); +DUK_INTERNAL_DECL void duk_debug_write_error_eom(duk_hthread *thr, duk_small_uint_t err_code, const char *msg); +DUK_INTERNAL_DECL void duk_debug_write_notify(duk_hthread *thr, duk_small_uint_t command); +DUK_INTERNAL_DECL void duk_debug_write_eom(duk_hthread *thr); + +DUK_INTERNAL_DECL duk_uint_fast32_t duk_debug_curr_line(duk_hthread *thr); +DUK_INTERNAL_DECL void duk_debug_send_status(duk_hthread *thr); +#if defined(DUK_USE_DEBUGGER_THROW_NOTIFY) +DUK_INTERNAL_DECL void duk_debug_send_throw(duk_hthread *thr, duk_bool_t fatal); +#endif + +DUK_INTERNAL_DECL void duk_debug_halt_execution(duk_hthread *thr, duk_bool_t use_prev_pc); +DUK_INTERNAL_DECL duk_bool_t duk_debug_process_messages(duk_hthread *thr, duk_bool_t no_block); + +DUK_INTERNAL_DECL duk_small_int_t duk_debug_add_breakpoint(duk_hthread *thr, duk_hstring *filename, duk_uint32_t line); +DUK_INTERNAL_DECL duk_bool_t duk_debug_remove_breakpoint(duk_hthread *thr, duk_small_uint_t breakpoint_index); +#endif + +#endif /* DUK_DEBUGGER_H_INCLUDED */ +#line 1 "duk_debug.h" +/* + * Debugging macros, DUK_DPRINT() and its variants in particular. + * + * DUK_DPRINT() allows formatted debug prints, and supports standard + * and Duktape specific formatters. See duk_debug_vsnprintf.c for details. + * + * DUK_D(x), DUK_DD(x), and DUK_DDD(x) are used together with log macros + * for technical reasons. They are concretely used to hide 'x' from the + * compiler when the corresponding log level is disabled. This allows + * clean builds on non-C99 compilers, at the cost of more verbose code. + * Examples: + * + * DUK_D(DUK_DPRINT("foo")); + * DUK_DD(DUK_DDPRINT("foo")); + * DUK_DDD(DUK_DDDPRINT("foo")); + * + * This approach is preferable to the old "double parentheses" hack because + * double parentheses make the C99 solution worse: __FILE__ and __LINE__ can + * no longer be added transparently without going through globals, which + * works poorly with threading. + */ + +#ifndef DUK_DEBUG_H_INCLUDED +#define DUK_DEBUG_H_INCLUDED + +#ifdef DUK_USE_DEBUG + +#if defined(DUK_USE_DPRINT) +#define DUK_D(x) x +#else +#define DUK_D(x) do { } while (0) /* omit */ +#endif + +#if defined(DUK_USE_DDPRINT) +#define DUK_DD(x) x +#else +#define DUK_DD(x) do { } while (0) /* omit */ +#endif + +#if defined(DUK_USE_DDDPRINT) +#define DUK_DDD(x) x +#else +#define DUK_DDD(x) do { } while (0) /* omit */ +#endif + +/* + * Exposed debug macros: debugging enabled + */ + +#define DUK_LEVEL_DEBUG 1 +#define DUK_LEVEL_DDEBUG 2 +#define DUK_LEVEL_DDDEBUG 3 + +#ifdef DUK_USE_VARIADIC_MACROS + +/* Note: combining __FILE__, __LINE__, and __func__ into fmt would be + * possible compile time, but waste some space with shared function names. + */ +#define DUK__DEBUG_LOG(lev,...) duk_debug_log((duk_small_int_t) (lev), DUK_FILE_MACRO, (duk_int_t) DUK_LINE_MACRO, DUK_FUNC_MACRO, __VA_ARGS__); + +#define DUK_DPRINT(...) DUK__DEBUG_LOG(DUK_LEVEL_DEBUG, __VA_ARGS__) + +#ifdef DUK_USE_DDPRINT +#define DUK_DDPRINT(...) DUK__DEBUG_LOG(DUK_LEVEL_DDEBUG, __VA_ARGS__) +#else +#define DUK_DDPRINT(...) +#endif + +#ifdef DUK_USE_DDDPRINT +#define DUK_DDDPRINT(...) DUK__DEBUG_LOG(DUK_LEVEL_DDDEBUG, __VA_ARGS__) +#else +#define DUK_DDDPRINT(...) +#endif + +#else /* DUK_USE_VARIADIC_MACROS */ + +#define DUK__DEBUG_STASH(lev) \ + (void) DUK_SNPRINTF(duk_debug_file_stash, DUK_DEBUG_STASH_SIZE, "%s", (const char *) DUK_FILE_MACRO), \ + duk_debug_file_stash[DUK_DEBUG_STASH_SIZE - 1] = (char) 0; \ + (void) DUK_SNPRINTF(duk_debug_line_stash, DUK_DEBUG_STASH_SIZE, "%ld", (long) DUK_LINE_MACRO), \ + duk_debug_line_stash[DUK_DEBUG_STASH_SIZE - 1] = (char) 0; \ + (void) DUK_SNPRINTF(duk_debug_func_stash, DUK_DEBUG_STASH_SIZE, "%s", (const char *) DUK_FUNC_MACRO), \ + duk_debug_func_stash[DUK_DEBUG_STASH_SIZE - 1] = (char) 0; \ + (void) (duk_debug_level_stash = (lev)) + +/* Without variadic macros resort to comma expression trickery to handle debug + * prints. This generates a lot of harmless warnings. These hacks are not + * needed normally because DUK_D() and friends will hide the entire debug log + * statement from the compiler. + */ + +#ifdef DUK_USE_DPRINT +#define DUK_DPRINT DUK__DEBUG_STASH(DUK_LEVEL_DEBUG), (void) duk_debug_log /* args go here in parens */ +#else +#define DUK_DPRINT 0 && /* args go here as a comma expression in parens */ +#endif + +#ifdef DUK_USE_DDPRINT +#define DUK_DDPRINT DUK__DEBUG_STASH(DUK_LEVEL_DDEBUG), (void) duk_debug_log /* args go here in parens */ +#else +#define DUK_DDPRINT 0 && /* args */ +#endif + +#ifdef DUK_USE_DDDPRINT +#define DUK_DDDPRINT DUK__DEBUG_STASH(DUK_LEVEL_DDDEBUG), (void) duk_debug_log /* args go here in parens */ +#else +#define DUK_DDDPRINT 0 && /* args */ +#endif + +#endif /* DUK_USE_VARIADIC_MACROS */ + +#else /* DUK_USE_DEBUG */ + +/* + * Exposed debug macros: debugging disabled + */ + +#define DUK_D(x) do { } while (0) /* omit */ +#define DUK_DD(x) do { } while (0) /* omit */ +#define DUK_DDD(x) do { } while (0) /* omit */ + +#ifdef DUK_USE_VARIADIC_MACROS + +#define DUK_DPRINT(...) +#define DUK_DDPRINT(...) +#define DUK_DDDPRINT(...) + +#else /* DUK_USE_VARIADIC_MACROS */ + +#define DUK_DPRINT 0 && /* args go here as a comma expression in parens */ +#define DUK_DDPRINT 0 && /* args */ +#define DUK_DDDPRINT 0 && /* args */ + +#endif /* DUK_USE_VARIADIC_MACROS */ + +#endif /* DUK_USE_DEBUG */ + +/* + * Structs + */ + +#ifdef DUK_USE_DEBUG +struct duk_fixedbuffer { + duk_uint8_t *buffer; + duk_size_t length; + duk_size_t offset; + duk_bool_t truncated; +}; +#endif + +/* + * Prototypes + */ + +#ifdef DUK_USE_DEBUG +DUK_INTERNAL_DECL duk_int_t duk_debug_vsnprintf(char *str, duk_size_t size, const char *format, va_list ap); +#if 0 /*unused*/ +DUK_INTERNAL_DECL duk_int_t duk_debug_snprintf(char *str, duk_size_t size, const char *format, ...); +#endif +DUK_INTERNAL_DECL void duk_debug_format_funcptr(char *buf, duk_size_t buf_size, duk_uint8_t *fptr, duk_size_t fptr_size); + +#ifdef DUK_USE_VARIADIC_MACROS +DUK_INTERNAL_DECL void duk_debug_log(duk_small_int_t level, const char *file, duk_int_t line, const char *func, const char *fmt, ...); +#else /* DUK_USE_VARIADIC_MACROS */ +/* parameter passing, not thread safe */ +#define DUK_DEBUG_STASH_SIZE 128 +#if !defined(DUK_SINGLE_FILE) +DUK_INTERNAL_DECL char duk_debug_file_stash[DUK_DEBUG_STASH_SIZE]; +DUK_INTERNAL_DECL char duk_debug_line_stash[DUK_DEBUG_STASH_SIZE]; +DUK_INTERNAL_DECL char duk_debug_func_stash[DUK_DEBUG_STASH_SIZE]; +DUK_INTERNAL_DECL duk_small_int_t duk_debug_level_stash; +#endif +DUK_INTERNAL_DECL void duk_debug_log(const char *fmt, ...); +#endif /* DUK_USE_VARIADIC_MACROS */ + +DUK_INTERNAL_DECL void duk_fb_put_bytes(duk_fixedbuffer *fb, const duk_uint8_t *buffer, duk_size_t length); +DUK_INTERNAL_DECL void duk_fb_put_byte(duk_fixedbuffer *fb, duk_uint8_t x); +DUK_INTERNAL_DECL void duk_fb_put_cstring(duk_fixedbuffer *fb, const char *x); +DUK_INTERNAL_DECL void duk_fb_sprintf(duk_fixedbuffer *fb, const char *fmt, ...); +DUK_INTERNAL_DECL void duk_fb_put_funcptr(duk_fixedbuffer *fb, duk_uint8_t *fptr, duk_size_t fptr_size); +DUK_INTERNAL_DECL duk_bool_t duk_fb_is_full(duk_fixedbuffer *fb); + +#endif /* DUK_USE_DEBUG */ + +#endif /* DUK_DEBUG_H_INCLUDED */ +#line 1 "duk_error.h" +/* + * Error handling macros, assertion macro, error codes. + * + * There are three level of 'errors': + * + * 1. Ordinary errors, relative to a thread, cause a longjmp, catchable. + * 2. Fatal errors, relative to a heap, cause fatal handler to be called. + * 3. Panic errors, unrelated to a heap and cause a process exit. + * + * Panics are used by the default fatal error handler and by debug code + * such as assertions. By providing a proper fatal error handler, user + * code can avoid panics in non-debug builds. + */ + +#ifndef DUK_ERROR_H_INCLUDED +#define DUK_ERROR_H_INCLUDED + +/* + * Error codes: defined in duktape.h + * + * Error codes are used as a shorthand to throw exceptions from inside + * the implementation. The appropriate Ecmascript object is constructed + * based on the code. Ecmascript code throws objects directly. The error + * codes are defined in the public API header because they are also used + * by calling code. + */ + +/* + * Normal error + * + * Normal error is thrown with a longjmp() through the current setjmp() + * catchpoint record in the duk_heap. The 'curr_thread' of the duk_heap + * identifies the throwing thread. + * + * Error formatting is usually unnecessary. The error macros provide a + * zero argument version (no formatting) and separate macros for small + * argument counts. Variadic macros are not used to avoid portability + * issues and avoid the need for stash-based workarounds when they're not + * available. Vararg calls are avoided for non-formatted error calls + * because vararg call sites are larger than normal, and there are a lot + * of call sites with no formatting. + * + * Note that special formatting provided by debug macros is NOT available. + * + * The _RAW variants allow the caller to specify file and line. This makes + * it easier to write checked calls which want to use the call site of the + * checked function, not the error macro call inside the checked function. + */ + +#if defined(DUK_USE_VERBOSE_ERRORS) + +/* Because there are quite many call sites, pack error code (require at most + * 8-bit) into a single argument. + */ +#define DUK_ERROR(thr,err,msg) do { \ + duk_errcode_t duk__err = (err); duk_int_t duk__line = (duk_int_t) DUK_LINE_MACRO; \ + DUK_ASSERT(duk__err >= 0 && duk__err <= 0xff); DUK_ASSERT(duk__line >= 0 && duk__line <= 0x00ffffffL); \ + duk_err_handle_error((thr), DUK_FILE_MACRO, (((duk_uint_t) duk__err) << 24) | ((duk_uint_t) duk__line), (msg)); \ + } while (0) +#define DUK_ERROR_RAW(thr,file,line,err,msg) do { \ + duk_errcode_t duk__err = (err); duk_int_t duk__line = (duk_int_t) (line); \ + DUK_ASSERT(duk__err >= 0 && duk__err <= 0xff); DUK_ASSERT(duk__line >= 0 && duk__line <= 0x00ffffffL); \ + duk_err_handle_error((thr), (file), (((duk_uint_t) duk__err) << 24) | ((duk_uint_t) duk__line), (msg)); \ + } while (0) + +#define DUK_ERROR_FMT1(thr,err,fmt,arg1) do { \ + duk_errcode_t duk__err = (err); duk_int_t duk__line = (duk_int_t) DUK_LINE_MACRO; \ + DUK_ASSERT(duk__err >= 0 && duk__err <= 0xff); DUK_ASSERT(duk__line >= 0 && duk__line <= 0x00ffffffL); \ + duk_err_handle_error_fmt((thr), DUK_FILE_MACRO, (((duk_uint_t) duk__err) << 24) | ((duk_uint_t) duk__line), (fmt), (arg1)); \ + } while (0) +#define DUK_ERROR_RAW_FMT1(thr,file,line,err,fmt,arg1) do { \ + duk_errcode_t duk__err = (err); duk_int_t duk__line = (duk_int_t) (line); \ + DUK_ASSERT(duk__err >= 0 && duk__err <= 0xff); DUK_ASSERT(duk__line >= 0 && duk__line <= 0x00ffffffL); \ + duk_err_handle_error_fmt((thr), (file), (((duk_uint_t) duk__err) << 24) | ((duk_uint_t) duk__line), (fmt), (arg1)); \ + } while (0) + +#define DUK_ERROR_FMT2(thr,err,fmt,arg1,arg2) do { \ + duk_errcode_t duk__err = (err); duk_int_t duk__line = (duk_int_t) DUK_LINE_MACRO; \ + DUK_ASSERT(duk__err >= 0 && duk__err <= 0xff); DUK_ASSERT(duk__line >= 0 && duk__line <= 0x00ffffffL); \ + duk_err_handle_error_fmt((thr), DUK_FILE_MACRO, (((duk_uint_t) duk__err) << 24) | ((duk_uint_t) duk__line), (fmt), (arg1), (arg2)); \ + } while (0) +#define DUK_ERROR_RAW_FMT2(thr,file,line,err,fmt,arg1,arg2) do { \ + duk_errcode_t duk__err = (err); duk_int_t duk__line = (duk_int_t) (line); \ + DUK_ASSERT(duk__err >= 0 && duk__err <= 0xff); DUK_ASSERT(duk__line >= 0 && duk__line <= 0x00ffffffL); \ + duk_err_handle_error_fmt((thr), (file), (((duk_uint_t) duk__err) << 24) | ((duk_uint_t) duk__line), (fmt), (arg1), (arg2)); \ + } while (0) + +#define DUK_ERROR_FMT3(thr,err,fmt,arg1,arg2,arg3) do { \ + duk_errcode_t duk__err = (err); duk_int_t duk__line = (duk_int_t) DUK_LINE_MACRO; \ + DUK_ASSERT(duk__err >= 0 && duk__err <= 0xff); DUK_ASSERT(duk__line >= 0 && duk__line <= 0x00ffffffL); \ + duk_err_handle_error_fmt((thr), DUK_FILE_MACRO, (((duk_uint_t) duk__err) << 24) | ((duk_uint_t) duk__line), (fmt), (arg1), (arg2), (arg3)); \ + } while (0) +#define DUK_ERROR_RAW_FMT3(thr,file,line,err,fmt,arg1,arg2,arg3) do { \ + duk_errcode_t duk__err = (err); duk_int_t duk__line = (duk_int_t) (line); \ + DUK_ASSERT(duk__err >= 0 && duk__err <= 0xff); DUK_ASSERT(duk__line >= 0 && duk__line <= 0x00ffffffL); \ + duk_err_handle_error_fmt((thr), (file), (((duk_uint_t) duk__err) << 24) | ((duk_uint_t) duk__line), (fmt), (arg1), (arg2), (arg3)); \ + } while (0) + +#define DUK_ERROR_FMT4(thr,err,fmt,arg1,arg2,arg3,arg4) do { \ + duk_errcode_t duk__err = (err); duk_int_t duk__line = (duk_int_t) DUK_LINE_MACRO; \ + DUK_ASSERT(duk__err >= 0 && duk__err <= 0xff); DUK_ASSERT(duk__line >= 0 && duk__line <= 0x00ffffffL); \ + duk_err_handle_error_fmt((thr), DUK_FILE_MACRO, (((duk_uint_t) duk__err) << 24) | ((duk_uint_t) duk__line), (fmt), (arg1), (arg2), (arg3), (arg4)); \ + } while (0) +#define DUK_ERROR_RAW_FMT4(thr,file,line,err,fmt,arg1,arg2,arg3,arg4) do { \ + duk_errcode_t duk__err = (err); duk_int_t duk__line = (duk_int_t) (line); \ + DUK_ASSERT(duk__err >= 0 && duk__err <= 0xff); DUK_ASSERT(duk__line >= 0 && duk__line <= 0x00ffffffL); \ + duk_err_handle_error_fmt((thr), (file), (((duk_uint_t) duk__err) << 24) | ((duk_uint_t) duk__line), (fmt), (arg1), (arg2), (arg3), (arg4)); \ + } while (0) + +#else /* DUK_USE_VERBOSE_ERRORS */ + +#define DUK_ERROR(thr,err,msg) duk_err_handle_error((thr), (err)) +#define DUK_ERROR_RAW(thr,file,line,err,msg) duk_err_handle_error((thr), (err)) + +#define DUK_ERROR_FMT1(thr,err,fmt,arg1) DUK_ERROR((thr),(err),(fmt)) +#define DUK_ERROR_RAW_FMT1(thr,file,line,err,fmt,arg1) DUK_ERROR_RAW((thr),(file),(line),(err),(fmt)) + +#define DUK_ERROR_FMT2(thr,err,fmt,arg1,arg2) DUK_ERROR((thr),(err),(fmt)) +#define DUK_ERROR_RAW_FMT2(thr,file,line,err,fmt,arg1,arg2) DUK_ERROR_RAW((thr),(file),(line),(err),(fmt)) + +#define DUK_ERROR_FMT3(thr,err,fmt,arg1,arg2,arg3) DUK_ERROR((thr),(err),(fmt)) +#define DUK_ERROR_RAW_FMT3(thr,file,line,err,fmt,arg1,arg2,arg3) DUK_ERROR_RAW((thr),(file),(line),(err),(fmt)) + +#define DUK_ERROR_FMT4(thr,err,fmt,arg1,arg2,arg3,arg4) DUK_ERROR((thr),(err),(fmt)) +#define DUK_ERROR_RAW_FMT4(thr,file,line,err,fmt,arg1,arg2,arg3,arg4) DUK_ERROR_RAW((thr),(file),(line),(err),(fmt)) + +#endif /* DUK_USE_VERBOSE_ERRORS */ + +/* + * Fatal error + * + * There are no fatal error macros at the moment. There are so few call + * sites that the fatal error handler is called directly. + */ + +/* + * Panic error + * + * Panic errors are not relative to either a heap or a thread, and cause + * DUK_PANIC() macro to be invoked. Unless a user provides DUK_USE_PANIC_HANDLER, + * DUK_PANIC() calls a helper which prints out the error and causes a process + * exit. + * + * The user can override the macro to provide custom handling. A macro is + * used to allow the user to have inline panic handling if desired (without + * causing a potentially risky function call). + * + * Panics are only used in debug code such as assertions, and by the default + * fatal error handler. + */ + +#if defined(DUK_USE_PANIC_HANDLER) +/* already defined, good */ +#define DUK_PANIC(code,msg) DUK_USE_PANIC_HANDLER((code),(msg)) +#else +#define DUK_PANIC(code,msg) duk_default_panic_handler((code),(msg)) +#endif /* DUK_USE_PANIC_HANDLER */ + +/* + * Assert macro: failure causes panic. + */ + +#if defined(DUK_USE_ASSERTIONS) + +/* the message should be a compile time constant without formatting (less risk); + * we don't care about assertion text size because they're not used in production + * builds. + */ +#define DUK_ASSERT(x) do { \ + if (!(x)) { \ + DUK_PANIC(DUK_ERR_ASSERTION_ERROR, \ + "assertion failed: " #x \ + " (" DUK_FILE_MACRO ":" DUK_MACRO_STRINGIFY(DUK_LINE_MACRO) ")"); \ + } \ + } while (0) + +/* Assertion compatible inside a comma expression, evaluates to void. + * Currently not compatible with DUK_USE_PANIC_HANDLER() which may have + * a statement block. + */ +#if defined(DUK_USE_PANIC_HANDLER) +/* XXX: resolve macro definition issue or call through a helper function? */ +#define DUK_ASSERT_EXPR(x) ((void) 0) +#else +#define DUK_ASSERT_EXPR(x) \ + ((void) ((x) ? 0 : (DUK_PANIC(DUK_ERR_ASSERTION_ERROR, \ + "assertion failed: " #x \ + " (" DUK_FILE_MACRO ":" DUK_MACRO_STRINGIFY(DUK_LINE_MACRO) ")"), 0))) +#endif + +#else /* DUK_USE_ASSERTIONS */ + +#define DUK_ASSERT(x) do { /* assertion omitted */ } while (0) + +#define DUK_ASSERT_EXPR(x) ((void) 0) + +#endif /* DUK_USE_ASSERTIONS */ + +/* this variant is used when an assert would generate a compile warning by + * being always true (e.g. >= 0 comparison for an unsigned value + */ +#define DUK_ASSERT_DISABLE(x) do { /* assertion disabled */ } while (0) + +/* + * Assertion helpers + */ + +#if defined(DUK_USE_ASSERTIONS) && defined(DUK_USE_REFERENCE_COUNTING) +#define DUK_ASSERT_REFCOUNT_NONZERO_HEAPHDR(h) do { \ + DUK_ASSERT((h) == NULL || DUK_HEAPHDR_GET_REFCOUNT((duk_heaphdr *) (h)) > 0); \ + } while (0) +#define DUK_ASSERT_REFCOUNT_NONZERO_TVAL(tv) do { \ + if ((tv) != NULL && DUK_TVAL_IS_HEAP_ALLOCATED((tv))) { \ + DUK_ASSERT(DUK_HEAPHDR_GET_REFCOUNT(DUK_TVAL_GET_HEAPHDR((tv))) > 0); \ + } \ + } while (0) +#else +#define DUK_ASSERT_REFCOUNT_NONZERO_HEAPHDR(h) /* no refcount check */ +#define DUK_ASSERT_REFCOUNT_NONZERO_TVAL(tv) /* no refcount check */ +#endif + +#define DUK_ASSERT_TOP(ctx,n) DUK_ASSERT((duk_idx_t) duk_get_top((ctx)) == (duk_idx_t) (n)) + +#if defined(DUK_USE_ASSERTIONS) && defined(DUK_USE_PACKED_TVAL) +#define DUK_ASSERT_DOUBLE_IS_NORMALIZED(dval) do { \ + duk_double_union duk__assert_tmp_du; \ + duk__assert_tmp_du.d = (dval); \ + DUK_ASSERT(DUK_DBLUNION_IS_NORMALIZED(&duk__assert_tmp_du)); \ + } while (0) +#else +#define DUK_ASSERT_DOUBLE_IS_NORMALIZED(dval) /* nop */ +#endif + +/* + * Helper for valstack space + * + * Caller of DUK_ASSERT_VALSTACK_SPACE() estimates the number of free stack entries + * required for its own use, and any child calls which are not (a) Duktape API calls + * or (b) Duktape calls which involve extending the valstack (e.g. getter call). + */ + +#define DUK_VALSTACK_ASSERT_EXTRA 5 /* this is added to checks to allow for Duktape + * API calls in addition to function's own use + */ +#if defined(DUK_USE_ASSERTIONS) +#define DUK_ASSERT_VALSTACK_SPACE(thr,n) do { \ + DUK_ASSERT((thr) != NULL); \ + DUK_ASSERT((thr)->valstack_end - (thr)->valstack_top >= (n) + DUK_VALSTACK_ASSERT_EXTRA); \ + } while (0) +#else +#define DUK_ASSERT_VALSTACK_SPACE(thr,n) /* no valstack space check */ +#endif + +/* + * Error throwing helpers + * + * The goal is to provide verbose and configurable error messages. Call + * sites should be clean in source code and compile to a small footprint. + * Small footprint is also useful for performance because small cold paths + * reduce code cache pressure. Adding macros here only makes sense if there + * are enough call sites to get concrete benefits. + */ + +#if defined(DUK_USE_VERBOSE_ERRORS) +/* Verbose errors with key/value summaries (non-paranoid) or without key/value + * summaries (paranoid, for some security sensitive environments), the paranoid + * vs. non-paranoid distinction affects only a few specific errors. + */ +#if defined(DUK_USE_PARANOID_ERRORS) +#define DUK_ERROR_REQUIRE_TYPE_INDEX(thr,index,expectname,lowmemstr) do { \ + duk_err_require_type_index((thr), DUK_FILE_MACRO, (duk_int_t) DUK_LINE_MACRO, (index), (expectname)); \ + } while (0) +#else /* DUK_USE_PARANOID_ERRORS */ +#define DUK_ERROR_REQUIRE_TYPE_INDEX(thr,index,expectname,lowmemstr) do { \ + duk_err_require_type_index((thr), DUK_FILE_MACRO, (duk_int_t) DUK_LINE_MACRO, (index), (expectname)); \ + } while (0) +#endif /* DUK_USE_PARANOID_ERRORS */ + +#define DUK_ERROR_UNIMPLEMENTED(thr,msg) do { \ + DUK_ERROR((thr), DUK_ERR_UNIMPLEMENTED_ERROR, (msg)); \ + } while (0) +#define DUK_ERROR_UNIMPLEMENTED_DEFMSG(thr) do { \ + duk_err_unimplemented_defmsg((thr), DUK_FILE_MACRO, (duk_int_t) DUK_LINE_MACRO); \ + } while (0) +#define DUK_ERROR_UNSUPPORTED(thr,msg) do { \ + DUK_ERROR((thr), DUK_ERR_UNSUPPORTED_ERROR, (msg)); \ + } while (0) +#ifndef DUK_USE_BYTECODE_DUMP_SUPPORT +#define DUK_ERROR_UNSUPPORTED_DEFMSG(thr) do { \ + duk_err_unsupported_defmsg((thr), DUK_FILE_MACRO, (duk_int_t) DUK_LINE_MACRO); \ + } while (0) +#endif +#define DUK_ERROR_INTERNAL(thr,msg) do { \ + duk_err_internal((thr), DUK_FILE_MACRO, (duk_int_t) DUK_LINE_MACRO, (msg)); \ + } while (0) +#define DUK_ERROR_INTERNAL_DEFMSG(thr) do { \ + duk_err_internal_defmsg((thr), DUK_FILE_MACRO, (duk_int_t) DUK_LINE_MACRO); \ + } while (0) +#define DUK_ERROR_ALLOC(thr,msg) do { \ + duk_err_alloc((thr), DUK_FILE_MACRO, (duk_int_t) DUK_LINE_MACRO, (msg)); \ + } while (0) +#define DUK_ERROR_ALLOC_DEFMSG(thr) do { \ + DUK_ERROR_ALLOC((thr), DUK_STR_ALLOC_FAILED); \ + } while (0) +/* DUK_ERR_ASSERTION_ERROR: no macros needed */ +#define DUK_ERROR_API_INDEX(thr,index) do { \ + duk_err_api_index((thr), DUK_FILE_MACRO, (duk_int_t) DUK_LINE_MACRO, (index)); \ + } while (0) +#define DUK_ERROR_API(thr,msg) do { \ + duk_err_api((thr), DUK_FILE_MACRO, (duk_int_t) DUK_LINE_MACRO, (msg)); \ + } while (0) +/* DUK_ERR_UNCAUGHT_ERROR: no macros needed */ +/* DUK_ERR_ERROR: no macros needed */ +/* DUK_ERR_EVAL: no macros needed */ +#define DUK_ERROR_RANGE(thr,msg) do { \ + duk_err_range((thr), DUK_FILE_MACRO, (duk_int_t) DUK_LINE_MACRO, (msg)); \ + } while (0) +/* DUK_ERR_REFERENCE_ERROR: no macros needed */ +#define DUK_ERROR_SYNTAX(thr,msg) do { \ + DUK_ERROR((thr), DUK_ERR_SYNTAX_ERROR, (msg)); \ + } while (0) +#define DUK_ERROR_TYPE(thr,msg) do { \ + DUK_ERROR((thr), DUK_ERR_TYPE_ERROR, (msg)); \ + } while (0) +/* DUK_ERR_URI_ERROR: no macros needed */ +#else /* DUK_USE_VERBOSE_ERRORS */ +/* Non-verbose errors for low memory targets: no file, line, or message. */ + +#define DUK_ERROR_REQUIRE_TYPE_INDEX(thr,index,expectname,lowmemstr) do { \ + duk_err_type((thr)); \ + } while (0) + +#define DUK_ERROR_UNIMPLEMENTED(thr,msg) do { \ + duk_err_unimplemented((thr)); \ + } while (0) +#define DUK_ERROR_UNIMPLEMENTED_DEFMSG(thr) do { \ + duk_err_unimplemented((thr)); \ + } while (0) +#define DUK_ERROR_UNSUPPORTED(thr,msg) do { \ + duk_err_unsupported((thr)); \ + } while (0) +#define DUK_ERROR_UNSUPPORTED_DEFMSG(thr) do { \ + duk_err_unsupported((thr)); \ + } while (0) +#define DUK_ERROR_INTERNAL(thr,msg) do { \ + duk_err_internal((thr)); \ + } while (0) +#define DUK_ERROR_INTERNAL_DEFMSG(thr) do { \ + duk_err_internal((thr)); \ + } while (0) +#define DUK_ERROR_ALLOC(thr,msg) do { \ + duk_err_alloc((thr)); \ + } while (0) +#define DUK_ERROR_ALLOC_DEFMSG(thr) do { \ + duk_err_alloc((thr)); \ + } while (0) +#define DUK_ERROR_API_INDEX(thr,index) do { \ + duk_err_api((thr)); \ + } while (0) +#define DUK_ERROR_API(thr,msg) do { \ + duk_err_api((thr)); \ + } while (0) +#define DUK_ERROR_RANGE(thr,msg) do { \ + duk_err_range((thr)); \ + } while (0) +#define DUK_ERROR_SYNTAX(thr,msg) do { \ + duk_err_syntax((thr)); \ + } while (0) +#define DUK_ERROR_TYPE(thr,msg) do { \ + duk_err_type((thr)); \ + } while (0) +#endif /* DUK_USE_VERBOSE_ERRORS */ + +/* + * Prototypes + */ + +#if defined(DUK_USE_VERBOSE_ERRORS) +DUK_NORETURN(DUK_INTERNAL_DECL void duk_err_handle_error(duk_hthread *thr, const char *filename, duk_uint_t line_and_code, const char *msg)); +DUK_NORETURN(DUK_INTERNAL_DECL void duk_err_handle_error_fmt(duk_hthread *thr, const char *filename, duk_uint_t line_and_code, const char *fmt, ...)); +#else /* DUK_USE_VERBOSE_ERRORS */ +DUK_NORETURN(DUK_INTERNAL_DECL void duk_err_handle_error(duk_hthread *thr, duk_errcode_t code)); +#endif /* DUK_USE_VERBOSE_ERRORS */ + +#if defined(DUK_USE_VERBOSE_ERRORS) +DUK_NORETURN(DUK_INTERNAL_DECL void duk_err_create_and_throw(duk_hthread *thr, duk_errcode_t code, const char *msg, const char *filename, duk_int_t line)); +#else +DUK_NORETURN(DUK_INTERNAL_DECL void duk_err_create_and_throw(duk_hthread *thr, duk_errcode_t code)); +#endif + +DUK_NORETURN(DUK_INTERNAL_DECL void duk_error_throw_from_negative_rc(duk_hthread *thr, duk_ret_t rc)); + +#if defined(DUK_USE_AUGMENT_ERROR_CREATE) +DUK_INTERNAL_DECL void duk_err_augment_error_create(duk_hthread *thr, duk_hthread *thr_callstack, const char *filename, duk_int_t line, duk_bool_t noblame_fileline); +#endif +#if defined(DUK_USE_AUGMENT_ERROR_THROW) +DUK_INTERNAL_DECL void duk_err_augment_error_throw(duk_hthread *thr); +#endif + +#if defined(DUK_USE_VERBOSE_ERRORS) +#if defined(DUK_USE_PARANOID_ERRORS) +DUK_NORETURN(DUK_INTERNAL_DECL void duk_err_require_type_index(duk_hthread *thr, const char *filename, duk_int_t linenumber, duk_idx_t index, const char *expect_name)); +#else +DUK_NORETURN(DUK_INTERNAL_DECL void duk_err_require_type_index(duk_hthread *thr, const char *filename, duk_int_t linenumber, duk_idx_t index, const char *expect_name)); +#endif +DUK_NORETURN(DUK_INTERNAL_DECL void duk_err_api_index(duk_hthread *thr, const char *filename, duk_int_t linenumber, duk_idx_t index)); +DUK_NORETURN(DUK_INTERNAL_DECL void duk_err_api(duk_hthread *thr, const char *filename, duk_int_t linenumber, const char *message)); +DUK_NORETURN(DUK_INTERNAL_DECL void duk_err_range(duk_hthread *thr, const char *filename, duk_int_t linenumber, const char *message)); +DUK_NORETURN(DUK_INTERNAL_DECL void duk_err_unimplemented_defmsg(duk_hthread *thr, const char *filename, duk_int_t linenumber)); +#ifndef DUK_USE_BYTECODE_DUMP_SUPPORT +DUK_NORETURN(DUK_INTERNAL_DECL void duk_err_unsupported_defmsg(duk_hthread *thr, const char *filename, duk_int_t linenumber)); +#endif +DUK_NORETURN(DUK_INTERNAL_DECL void duk_err_internal_defmsg(duk_hthread *thr, const char *filename, duk_int_t linenumber)); +DUK_NORETURN(DUK_INTERNAL_DECL void duk_err_internal(duk_hthread *thr, const char *filename, duk_int_t linenumber, const char *message)); +DUK_NORETURN(DUK_INTERNAL_DECL void duk_err_alloc(duk_hthread *thr, const char *filename, duk_int_t linenumber, const char *message)); +#else /* DUK_VERBOSE_ERRORS */ +DUK_NORETURN(DUK_INTERNAL_DECL void duk_err_range(duk_hthread *thr)); +DUK_NORETURN(DUK_INTERNAL_DECL void duk_err_syntax(duk_hthread *thr)); +DUK_NORETURN(DUK_INTERNAL_DECL void duk_err_type(duk_hthread *thr)); +DUK_NORETURN(DUK_INTERNAL_DECL void duk_err_api(duk_hthread *thr)); +DUK_NORETURN(DUK_INTERNAL_DECL void duk_err_unimplemented(duk_hthread *thr)); +DUK_NORETURN(DUK_INTERNAL_DECL void duk_err_unsupported(duk_hthread *thr)); +DUK_NORETURN(DUK_INTERNAL_DECL void duk_err_internal(duk_hthread *thr)); +DUK_NORETURN(DUK_INTERNAL_DECL void duk_err_alloc(duk_hthread *thr)); +#endif /* DUK_VERBOSE_ERRORS */ + +DUK_NORETURN(DUK_INTERNAL_DECL void duk_err_longjmp(duk_hthread *thr)); + +DUK_NORETURN(DUK_INTERNAL_DECL void duk_default_fatal_handler(duk_context *ctx, duk_errcode_t code, const char *msg)); + +#if !defined(DUK_USE_PANIC_HANDLER) +DUK_NORETURN(DUK_INTERNAL_DECL void duk_default_panic_handler(duk_errcode_t code, const char *msg)); +#endif + +DUK_INTERNAL_DECL void duk_err_setup_heap_ljstate(duk_hthread *thr, duk_small_int_t lj_type); + +DUK_INTERNAL_DECL duk_hobject *duk_error_prototype_from_code(duk_hthread *thr, duk_errcode_t err_code); + +#endif /* DUK_ERROR_H_INCLUDED */ +#line 1 "duk_unicode.h" +/* + * Unicode helpers + */ + +#ifndef DUK_UNICODE_H_INCLUDED +#define DUK_UNICODE_H_INCLUDED + +/* + * UTF-8 / XUTF-8 / CESU-8 constants + */ + +#define DUK_UNICODE_MAX_XUTF8_LENGTH 7 /* up to 36 bit codepoints */ +#define DUK_UNICODE_MAX_XUTF8_BMP_LENGTH 3 /* all codepoints up to U+FFFF */ +#define DUK_UNICODE_MAX_CESU8_LENGTH 6 /* all codepoints up to U+10FFFF */ +#define DUK_UNICODE_MAX_CESU8_BMP_LENGTH 3 /* all codepoints up to U+FFFF */ + +/* + * Useful Unicode codepoints + * + * Integer constants must be signed to avoid unexpected coercions + * in comparisons. + */ + +#define DUK_UNICODE_CP_ZWNJ 0x200cL /* zero-width non-joiner */ +#define DUK_UNICODE_CP_ZWJ 0x200dL /* zero-width joiner */ +#define DUK_UNICODE_CP_REPLACEMENT_CHARACTER 0xfffdL /* http://en.wikipedia.org/wiki/Replacement_character#Replacement_character */ + +/* + * ASCII character constants + * + * C character literals like 'x' have a platform specific value and do + * not match ASCII (UTF-8) values on e.g. EBCDIC platforms. So, use + * these (admittedly awkward) constants instead. These constants must + * also have signed values to avoid unexpected coercions in comparisons. + * + * http://en.wikipedia.org/wiki/ASCII + */ + +#define DUK_ASC_NUL 0x00 +#define DUK_ASC_SOH 0x01 +#define DUK_ASC_STX 0x02 +#define DUK_ASC_ETX 0x03 +#define DUK_ASC_EOT 0x04 +#define DUK_ASC_ENQ 0x05 +#define DUK_ASC_ACK 0x06 +#define DUK_ASC_BEL 0x07 +#define DUK_ASC_BS 0x08 +#define DUK_ASC_HT 0x09 +#define DUK_ASC_LF 0x0a +#define DUK_ASC_VT 0x0b +#define DUK_ASC_FF 0x0c +#define DUK_ASC_CR 0x0d +#define DUK_ASC_SO 0x0e +#define DUK_ASC_SI 0x0f +#define DUK_ASC_DLE 0x10 +#define DUK_ASC_DC1 0x11 +#define DUK_ASC_DC2 0x12 +#define DUK_ASC_DC3 0x13 +#define DUK_ASC_DC4 0x14 +#define DUK_ASC_NAK 0x15 +#define DUK_ASC_SYN 0x16 +#define DUK_ASC_ETB 0x17 +#define DUK_ASC_CAN 0x18 +#define DUK_ASC_EM 0x19 +#define DUK_ASC_SUB 0x1a +#define DUK_ASC_ESC 0x1b +#define DUK_ASC_FS 0x1c +#define DUK_ASC_GS 0x1d +#define DUK_ASC_RS 0x1e +#define DUK_ASC_US 0x1f +#define DUK_ASC_SPACE 0x20 +#define DUK_ASC_EXCLAMATION 0x21 +#define DUK_ASC_DOUBLEQUOTE 0x22 +#define DUK_ASC_HASH 0x23 +#define DUK_ASC_DOLLAR 0x24 +#define DUK_ASC_PERCENT 0x25 +#define DUK_ASC_AMP 0x26 +#define DUK_ASC_SINGLEQUOTE 0x27 +#define DUK_ASC_LPAREN 0x28 +#define DUK_ASC_RPAREN 0x29 +#define DUK_ASC_STAR 0x2a +#define DUK_ASC_PLUS 0x2b +#define DUK_ASC_COMMA 0x2c +#define DUK_ASC_MINUS 0x2d +#define DUK_ASC_PERIOD 0x2e +#define DUK_ASC_SLASH 0x2f +#define DUK_ASC_0 0x30 +#define DUK_ASC_1 0x31 +#define DUK_ASC_2 0x32 +#define DUK_ASC_3 0x33 +#define DUK_ASC_4 0x34 +#define DUK_ASC_5 0x35 +#define DUK_ASC_6 0x36 +#define DUK_ASC_7 0x37 +#define DUK_ASC_8 0x38 +#define DUK_ASC_9 0x39 +#define DUK_ASC_COLON 0x3a +#define DUK_ASC_SEMICOLON 0x3b +#define DUK_ASC_LANGLE 0x3c +#define DUK_ASC_EQUALS 0x3d +#define DUK_ASC_RANGLE 0x3e +#define DUK_ASC_QUESTION 0x3f +#define DUK_ASC_ATSIGN 0x40 +#define DUK_ASC_UC_A 0x41 +#define DUK_ASC_UC_B 0x42 +#define DUK_ASC_UC_C 0x43 +#define DUK_ASC_UC_D 0x44 +#define DUK_ASC_UC_E 0x45 +#define DUK_ASC_UC_F 0x46 +#define DUK_ASC_UC_G 0x47 +#define DUK_ASC_UC_H 0x48 +#define DUK_ASC_UC_I 0x49 +#define DUK_ASC_UC_J 0x4a +#define DUK_ASC_UC_K 0x4b +#define DUK_ASC_UC_L 0x4c +#define DUK_ASC_UC_M 0x4d +#define DUK_ASC_UC_N 0x4e +#define DUK_ASC_UC_O 0x4f +#define DUK_ASC_UC_P 0x50 +#define DUK_ASC_UC_Q 0x51 +#define DUK_ASC_UC_R 0x52 +#define DUK_ASC_UC_S 0x53 +#define DUK_ASC_UC_T 0x54 +#define DUK_ASC_UC_U 0x55 +#define DUK_ASC_UC_V 0x56 +#define DUK_ASC_UC_W 0x57 +#define DUK_ASC_UC_X 0x58 +#define DUK_ASC_UC_Y 0x59 +#define DUK_ASC_UC_Z 0x5a +#define DUK_ASC_LBRACKET 0x5b +#define DUK_ASC_BACKSLASH 0x5c +#define DUK_ASC_RBRACKET 0x5d +#define DUK_ASC_CARET 0x5e +#define DUK_ASC_UNDERSCORE 0x5f +#define DUK_ASC_GRAVE 0x60 +#define DUK_ASC_LC_A 0x61 +#define DUK_ASC_LC_B 0x62 +#define DUK_ASC_LC_C 0x63 +#define DUK_ASC_LC_D 0x64 +#define DUK_ASC_LC_E 0x65 +#define DUK_ASC_LC_F 0x66 +#define DUK_ASC_LC_G 0x67 +#define DUK_ASC_LC_H 0x68 +#define DUK_ASC_LC_I 0x69 +#define DUK_ASC_LC_J 0x6a +#define DUK_ASC_LC_K 0x6b +#define DUK_ASC_LC_L 0x6c +#define DUK_ASC_LC_M 0x6d +#define DUK_ASC_LC_N 0x6e +#define DUK_ASC_LC_O 0x6f +#define DUK_ASC_LC_P 0x70 +#define DUK_ASC_LC_Q 0x71 +#define DUK_ASC_LC_R 0x72 +#define DUK_ASC_LC_S 0x73 +#define DUK_ASC_LC_T 0x74 +#define DUK_ASC_LC_U 0x75 +#define DUK_ASC_LC_V 0x76 +#define DUK_ASC_LC_W 0x77 +#define DUK_ASC_LC_X 0x78 +#define DUK_ASC_LC_Y 0x79 +#define DUK_ASC_LC_Z 0x7a +#define DUK_ASC_LCURLY 0x7b +#define DUK_ASC_PIPE 0x7c +#define DUK_ASC_RCURLY 0x7d +#define DUK_ASC_TILDE 0x7e +#define DUK_ASC_DEL 0x7f + +/* + * Unicode tables + */ + +#ifdef DUK_USE_SOURCE_NONBMP +/* + * Automatically generated by extract_chars.py, do not edit! + */ + +extern const duk_uint8_t duk_unicode_ids_noa[791]; +#else +/* + * Automatically generated by extract_chars.py, do not edit! + */ + +extern const duk_uint8_t duk_unicode_ids_noabmp[611]; +#endif + +#ifdef DUK_USE_SOURCE_NONBMP +/* + * Automatically generated by extract_chars.py, do not edit! + */ + +extern const duk_uint8_t duk_unicode_ids_m_let_noa[42]; +#else +/* + * Automatically generated by extract_chars.py, do not edit! + */ + +extern const duk_uint8_t duk_unicode_ids_m_let_noabmp[24]; +#endif + +#ifdef DUK_USE_SOURCE_NONBMP +/* + * Automatically generated by extract_chars.py, do not edit! + */ + +extern const duk_uint8_t duk_unicode_idp_m_ids_noa[397]; +#else +/* + * Automatically generated by extract_chars.py, do not edit! + */ + +extern const duk_uint8_t duk_unicode_idp_m_ids_noabmp[348]; +#endif + +/* + * Automatically generated by extract_caseconv.py, do not edit! + */ + +extern const duk_uint8_t duk_unicode_caseconv_uc[1288]; +extern const duk_uint8_t duk_unicode_caseconv_lc[616]; + +#if defined(DUK_USE_REGEXP_CANON_WORKAROUND) +/* + * Automatically generated by extract_caseconv.py, do not edit! + */ + +extern const duk_uint16_t duk_unicode_re_canon_lookup[65536]; +#endif + +/* + * Extern + */ + +/* duk_unicode_support.c */ +#if !defined(DUK_SINGLE_FILE) +DUK_INTERNAL_DECL const duk_uint8_t duk_unicode_xutf8_markers[7]; +DUK_INTERNAL_DECL const duk_uint16_t duk_unicode_re_ranges_digit[2]; +DUK_INTERNAL_DECL const duk_uint16_t duk_unicode_re_ranges_white[22]; +DUK_INTERNAL_DECL const duk_uint16_t duk_unicode_re_ranges_wordchar[8]; +DUK_INTERNAL_DECL const duk_uint16_t duk_unicode_re_ranges_not_digit[4]; +DUK_INTERNAL_DECL const duk_uint16_t duk_unicode_re_ranges_not_white[24]; +DUK_INTERNAL_DECL const duk_uint16_t duk_unicode_re_ranges_not_wordchar[10]; +DUK_INTERNAL_DECL const duk_int8_t duk_is_idchar_tab[128]; +#endif /* !DUK_SINGLE_FILE */ + +/* + * Prototypes + */ + +DUK_INTERNAL_DECL duk_small_int_t duk_unicode_get_xutf8_length(duk_ucodepoint_t cp); +#if defined(DUK_USE_ASSERTIONS) +DUK_INTERNAL_DECL duk_small_int_t duk_unicode_get_cesu8_length(duk_ucodepoint_t cp); +#endif +DUK_INTERNAL_DECL duk_small_int_t duk_unicode_encode_xutf8(duk_ucodepoint_t cp, duk_uint8_t *out); +DUK_INTERNAL_DECL duk_small_int_t duk_unicode_encode_cesu8(duk_ucodepoint_t cp, duk_uint8_t *out); +DUK_INTERNAL_DECL duk_small_int_t duk_unicode_decode_xutf8(duk_hthread *thr, const duk_uint8_t **ptr, const duk_uint8_t *ptr_start, const duk_uint8_t *ptr_end, duk_ucodepoint_t *out_cp); +DUK_INTERNAL_DECL duk_ucodepoint_t duk_unicode_decode_xutf8_checked(duk_hthread *thr, const duk_uint8_t **ptr, const duk_uint8_t *ptr_start, const duk_uint8_t *ptr_end); +DUK_INTERNAL_DECL duk_size_t duk_unicode_unvalidated_utf8_length(const duk_uint8_t *data, duk_size_t blen); +DUK_INTERNAL_DECL duk_small_int_t duk_unicode_is_whitespace(duk_codepoint_t cp); +DUK_INTERNAL_DECL duk_small_int_t duk_unicode_is_line_terminator(duk_codepoint_t cp); +DUK_INTERNAL_DECL duk_small_int_t duk_unicode_is_identifier_start(duk_codepoint_t cp); +DUK_INTERNAL_DECL duk_small_int_t duk_unicode_is_identifier_part(duk_codepoint_t cp); +DUK_INTERNAL_DECL duk_small_int_t duk_unicode_is_letter(duk_codepoint_t cp); +DUK_INTERNAL_DECL void duk_unicode_case_convert_string(duk_hthread *thr, duk_bool_t uppercase); +DUK_INTERNAL_DECL duk_codepoint_t duk_unicode_re_canonicalize_char(duk_hthread *thr, duk_codepoint_t cp); +DUK_INTERNAL_DECL duk_small_int_t duk_unicode_re_is_wordchar(duk_codepoint_t cp); + +#endif /* DUK_UNICODE_H_INCLUDED */ +#line 1 "duk_json.h" +/* + * Defines for JSON, especially duk_bi_json.c. + */ + +#ifndef DUK_JSON_H_INCLUDED +#define DUK_JSON_H_INCLUDED + +/* Encoding/decoding flags */ +#define DUK_JSON_FLAG_ASCII_ONLY (1 << 0) /* escape any non-ASCII characters */ +#define DUK_JSON_FLAG_AVOID_KEY_QUOTES (1 << 1) /* avoid key quotes when key is an ASCII Identifier */ +#define DUK_JSON_FLAG_EXT_CUSTOM (1 << 2) /* extended types: custom encoding */ +#define DUK_JSON_FLAG_EXT_COMPATIBLE (1 << 3) /* extended types: compatible encoding */ + +/* How much stack to require on entry to object/array encode */ +#define DUK_JSON_ENC_REQSTACK 32 + +/* How much stack to require on entry to object/array decode */ +#define DUK_JSON_DEC_REQSTACK 32 + +/* How large a loop detection stack to use */ +#define DUK_JSON_ENC_LOOPARRAY 64 + +/* Encoding state. Heap object references are all borrowed. */ +typedef struct { + duk_hthread *thr; + duk_bufwriter_ctx bw; /* output bufwriter */ + duk_hobject *h_replacer; /* replacer function */ + duk_hstring *h_gap; /* gap (if empty string, NULL) */ + duk_idx_t idx_proplist; /* explicit PropertyList */ + duk_idx_t idx_loop; /* valstack index of loop detection object */ + duk_small_uint_t flags; + duk_small_uint_t flag_ascii_only; + duk_small_uint_t flag_avoid_key_quotes; +#if defined(DUK_USE_JX) || defined(DUK_USE_JC) + duk_small_uint_t flag_ext_custom; + duk_small_uint_t flag_ext_compatible; + duk_small_uint_t flag_ext_custom_or_compatible; +#endif + duk_int_t recursion_depth; + duk_int_t recursion_limit; + duk_uint_t mask_for_undefined; /* type bit mask: types which certainly produce 'undefined' */ +#if defined(DUK_USE_JX) || defined(DUK_USE_JC) + duk_small_uint_t stridx_custom_undefined; + duk_small_uint_t stridx_custom_nan; + duk_small_uint_t stridx_custom_neginf; + duk_small_uint_t stridx_custom_posinf; + duk_small_uint_t stridx_custom_function; +#endif + duk_hobject *visiting[DUK_JSON_ENC_LOOPARRAY]; /* indexed by recursion_depth */ +} duk_json_enc_ctx; + +typedef struct { + duk_hthread *thr; + const duk_uint8_t *p; + const duk_uint8_t *p_start; + const duk_uint8_t *p_end; + duk_idx_t idx_reviver; + duk_small_uint_t flags; +#if defined(DUK_USE_JX) || defined(DUK_USE_JC) + duk_small_uint_t flag_ext_custom; + duk_small_uint_t flag_ext_compatible; + duk_small_uint_t flag_ext_custom_or_compatible; +#endif + duk_int_t recursion_depth; + duk_int_t recursion_limit; +} duk_json_dec_ctx; + +#endif /* DUK_JSON_H_INCLUDED */ +#line 1 "duk_js.h" +/* + * Ecmascript execution, support primitives. + */ + +#ifndef DUK_JS_H_INCLUDED +#define DUK_JS_H_INCLUDED + +/* Flags for call handling. */ +#define DUK_CALL_FLAG_IGNORE_RECLIMIT (1 << 0) /* duk_handle_call_xxx: call ignores C recursion limit (for errhandler calls) */ +#define DUK_CALL_FLAG_CONSTRUCTOR_CALL (1 << 1) /* duk_handle_call_xxx: constructor call (i.e. called as 'new Foo()') */ +#define DUK_CALL_FLAG_IS_RESUME (1 << 2) /* duk_handle_ecma_call_setup: setup for a resume() */ +#define DUK_CALL_FLAG_IS_TAILCALL (1 << 3) /* duk_handle_ecma_call_setup: setup for a tail call */ +#define DUK_CALL_FLAG_DIRECT_EVAL (1 << 4) /* call is a direct eval call */ + +/* Flags for duk_js_equals_helper(). */ +#define DUK_EQUALS_FLAG_SAMEVALUE (1 << 0) /* use SameValue instead of non-strict equality */ +#define DUK_EQUALS_FLAG_STRICT (1 << 1) /* use strict equality instead of non-strict equality */ + +/* Flags for duk_js_compare_helper(). */ +#define DUK_COMPARE_FLAG_EVAL_LEFT_FIRST (1 << 0) /* eval left argument first */ +#define DUK_COMPARE_FLAG_NEGATE (1 << 1) /* negate result */ + +/* conversions, coercions, comparison, etc */ +DUK_INTERNAL_DECL duk_bool_t duk_js_toboolean(duk_tval *tv); +DUK_INTERNAL_DECL duk_double_t duk_js_tonumber(duk_hthread *thr, duk_tval *tv); +DUK_INTERNAL_DECL duk_double_t duk_js_tointeger_number(duk_double_t x); +DUK_INTERNAL_DECL duk_double_t duk_js_tointeger(duk_hthread *thr, duk_tval *tv); +DUK_INTERNAL_DECL duk_uint32_t duk_js_touint32(duk_hthread *thr, duk_tval *tv); +DUK_INTERNAL_DECL duk_int32_t duk_js_toint32(duk_hthread *thr, duk_tval *tv); +DUK_INTERNAL_DECL duk_uint16_t duk_js_touint16(duk_hthread *thr, duk_tval *tv); +DUK_INTERNAL_DECL duk_small_int_t duk_js_to_arrayindex_raw_string(const duk_uint8_t *str, duk_uint32_t blen, duk_uarridx_t *out_idx); +DUK_INTERNAL_DECL duk_uarridx_t duk_js_to_arrayindex_string_helper(duk_hstring *h); +DUK_INTERNAL_DECL duk_bool_t duk_js_equals_helper(duk_hthread *thr, duk_tval *tv_x, duk_tval *tv_y, duk_small_int_t flags); +DUK_INTERNAL_DECL duk_small_int_t duk_js_data_compare(const duk_uint8_t *buf1, const duk_uint8_t *buf2, duk_size_t len1, duk_size_t len2); +DUK_INTERNAL_DECL duk_small_int_t duk_js_string_compare(duk_hstring *h1, duk_hstring *h2); +#if 0 /* unused */ +DUK_INTERNAL_DECL duk_small_int_t duk_js_buffer_compare(duk_heap *heap, duk_hbuffer *h1, duk_hbuffer *h2); +#endif +DUK_INTERNAL_DECL duk_bool_t duk_js_compare_helper(duk_hthread *thr, duk_tval *tv_x, duk_tval *tv_y, duk_small_int_t flags); +DUK_INTERNAL_DECL duk_bool_t duk_js_instanceof(duk_hthread *thr, duk_tval *tv_x, duk_tval *tv_y); +DUK_INTERNAL_DECL duk_bool_t duk_js_in(duk_hthread *thr, duk_tval *tv_x, duk_tval *tv_y); +DUK_INTERNAL_DECL duk_hstring *duk_js_typeof(duk_hthread *thr, duk_tval *tv_x); + +#define duk_js_equals(thr,tv_x,tv_y) \ + duk_js_equals_helper((thr), (tv_x), (tv_y), 0) +#define duk_js_strict_equals(tv_x,tv_y) \ + duk_js_equals_helper(NULL, (tv_x), (tv_y), DUK_EQUALS_FLAG_STRICT) +#define duk_js_samevalue(tv_x,tv_y) \ + duk_js_equals_helper(NULL, (tv_x), (tv_y), DUK_EQUALS_FLAG_SAMEVALUE) + +/* E5 Sections 11.8.1, 11.8.5; x < y */ +#define duk_js_lessthan(thr,tv_x,tv_y) \ + duk_js_compare_helper((thr), (tv_x), (tv_Y), DUK_COMPARE_FLAG_EVAL_LEFT_FIRST) + +/* E5 Sections 11.8.2, 11.8.5; x > y --> y < x */ +#define duk_js_greaterthan(thr,tv_x,tv_y) \ + duk_js_compare_helper((thr), (tv_y), (tv_x), 0) + +/* E5 Sections 11.8.3, 11.8.5; x <= y --> not (x > y) --> not (y < x) */ +#define duk_js_lessthanorequal(thr,tv_x,tv_y) \ + duk_js_compare_helper((thr), (tv_y), (tv_x), DUK_COMPARE_FLAG_NEGATE) + +/* E5 Sections 11.8.4, 11.8.5; x >= y --> not (x < y) */ +#define duk_js_greaterthanorequal(thr,tv_x,tv_y) \ + duk_js_compare_helper((thr), (tv_x), (tv_y), DUK_COMPARE_FLAG_EVAL_LEFT_FIRST | DUK_COMPARE_FLAG_NEGATE) + +/* identifiers and environment handling */ +#if 0 /*unused*/ +DUK_INTERNAL duk_bool_t duk_js_hasvar_envrec(duk_hthread *thr, duk_hobject *env, duk_hstring *name); +#endif +DUK_INTERNAL_DECL duk_bool_t duk_js_getvar_envrec(duk_hthread *thr, duk_hobject *env, duk_hstring *name, duk_bool_t throw_flag); +DUK_INTERNAL_DECL duk_bool_t duk_js_getvar_activation(duk_hthread *thr, duk_activation *act, duk_hstring *name, duk_bool_t throw_flag); +DUK_INTERNAL_DECL void duk_js_putvar_envrec(duk_hthread *thr, duk_hobject *env, duk_hstring *name, duk_tval *val, duk_bool_t strict); +DUK_INTERNAL_DECL void duk_js_putvar_activation(duk_hthread *thr, duk_activation *act, duk_hstring *name, duk_tval *val, duk_bool_t strict); +#if 0 /*unused*/ +DUK_INTERNAL_DECL duk_bool_t duk_js_delvar_envrec(duk_hthread *thr, duk_hobject *env, duk_hstring *name); +#endif +DUK_INTERNAL_DECL duk_bool_t duk_js_delvar_activation(duk_hthread *thr, duk_activation *act, duk_hstring *name); +DUK_INTERNAL_DECL duk_bool_t duk_js_declvar_activation(duk_hthread *thr, duk_activation *act, duk_hstring *name, duk_tval *val, duk_small_int_t prop_flags, duk_bool_t is_func_decl); +DUK_INTERNAL_DECL void duk_js_init_activation_environment_records_delayed(duk_hthread *thr, duk_activation *act); +DUK_INTERNAL_DECL void duk_js_close_environment_record(duk_hthread *thr, duk_hobject *env, duk_hobject *func, duk_size_t regbase); +DUK_INTERNAL_DECL duk_hobject *duk_create_activation_environment_record(duk_hthread *thr, duk_hobject *func, duk_size_t idx_bottom); +DUK_INTERNAL_DECL +void duk_js_push_closure(duk_hthread *thr, + duk_hcompiledfunction *fun_temp, + duk_hobject *outer_var_env, + duk_hobject *outer_lex_env, + duk_bool_t add_auto_proto); + +/* call handling */ +DUK_INTERNAL_DECL duk_int_t duk_handle_call_protected(duk_hthread *thr, duk_idx_t num_stack_args, duk_small_uint_t call_flags); +DUK_INTERNAL_DECL void duk_handle_call_unprotected(duk_hthread *thr, duk_idx_t num_stack_args, duk_small_uint_t call_flags); +DUK_INTERNAL_DECL duk_int_t duk_handle_safe_call(duk_hthread *thr, duk_safe_call_function func, duk_idx_t num_stack_args, duk_idx_t num_stack_res); +DUK_INTERNAL_DECL duk_bool_t duk_handle_ecma_call_setup(duk_hthread *thr, duk_idx_t num_stack_args, duk_small_uint_t call_flags); + +/* bytecode execution */ +DUK_INTERNAL_DECL void duk_js_execute_bytecode(duk_hthread *exec_thr); + +#endif /* DUK_JS_H_INCLUDED */ +#line 1 "duk_numconv.h" +#ifndef DUK_NUMCONV_H_INCLUDED +#define DUK_NUMCONV_H_INCLUDED + +/* + * Number-to-string conversion. The semantics of these is very tightly + * bound with the Ecmascript semantics required for call sites. + */ + +/* Output a specified number of digits instead of using the shortest + * form. Used for toPrecision() and toFixed(). + */ +#define DUK_N2S_FLAG_FIXED_FORMAT (1 << 0) + +/* Force exponential format. Used for toExponential(). */ +#define DUK_N2S_FLAG_FORCE_EXP (1 << 1) + +/* If number would need zero padding (for whole number part), use + * exponential format instead. E.g. if input number is 12300, 3 + * digits are generated ("123"), output "1.23e+4" instead of "12300". + * Used for toPrecision(). + */ +#define DUK_N2S_FLAG_NO_ZERO_PAD (1 << 2) + +/* Digit count indicates number of fractions (i.e. an absolute + * digit index instead of a relative one). Used together with + * DUK_N2S_FLAG_FIXED_FORMAT for toFixed(). + */ +#define DUK_N2S_FLAG_FRACTION_DIGITS (1 << 3) + +/* + * String-to-number conversion + */ + +/* Maximum exponent value when parsing numbers. This is not strictly + * compliant as there should be no upper limit, but as we parse the + * exponent without a bigint, impose some limit. + */ +#define DUK_S2N_MAX_EXPONENT 1000000000 + +/* Trim white space (= allow leading and trailing whitespace) */ +#define DUK_S2N_FLAG_TRIM_WHITE (1 << 0) + +/* Allow exponent */ +#define DUK_S2N_FLAG_ALLOW_EXP (1 << 1) + +/* Allow trailing garbage (e.g. treat "123foo" as "123) */ +#define DUK_S2N_FLAG_ALLOW_GARBAGE (1 << 2) + +/* Allow leading plus sign */ +#define DUK_S2N_FLAG_ALLOW_PLUS (1 << 3) + +/* Allow leading minus sign */ +#define DUK_S2N_FLAG_ALLOW_MINUS (1 << 4) + +/* Allow 'Infinity' */ +#define DUK_S2N_FLAG_ALLOW_INF (1 << 5) + +/* Allow fraction part */ +#define DUK_S2N_FLAG_ALLOW_FRAC (1 << 6) + +/* Allow naked fraction (e.g. ".123") */ +#define DUK_S2N_FLAG_ALLOW_NAKED_FRAC (1 << 7) + +/* Allow empty fraction (e.g. "123.") */ +#define DUK_S2N_FLAG_ALLOW_EMPTY_FRAC (1 << 8) + +/* Allow empty string to be interpreted as 0 */ +#define DUK_S2N_FLAG_ALLOW_EMPTY_AS_ZERO (1 << 9) + +/* Allow leading zeroes (e.g. "0123" -> "123") */ +#define DUK_S2N_FLAG_ALLOW_LEADING_ZERO (1 << 10) + +/* Allow automatic detection of hex base ("0x" or "0X" prefix), + * overrides radix argument and forces integer mode. + */ +#define DUK_S2N_FLAG_ALLOW_AUTO_HEX_INT (1 << 11) + +/* Allow automatic detection of octal base, overrides radix + * argument and forces integer mode. + */ +#define DUK_S2N_FLAG_ALLOW_AUTO_OCT_INT (1 << 12) + +/* + * Prototypes + */ + +DUK_INTERNAL_DECL void duk_numconv_stringify(duk_context *ctx, duk_small_int_t radix, duk_small_int_t digits, duk_small_uint_t flags); +DUK_INTERNAL_DECL void duk_numconv_parse(duk_context *ctx, duk_small_int_t radix, duk_small_uint_t flags); + +#endif /* DUK_NUMCONV_H_INCLUDED */ +#line 1 "duk_bi_protos.h" +/* + * Prototypes for built-in functions not automatically covered by the + * header declarations emitted by genbuiltins.py. + */ + +#ifndef DUK_BUILTIN_PROTOS_H_INCLUDED +#define DUK_BUILTIN_PROTOS_H_INCLUDED + +/* Buffer size needed for duk_bi_date_format_timeval(). + * Accurate value is 32 + 1 for NUL termination: + * >>> len('+123456-01-23T12:34:56.123+12:34') + * 32 + * Include additional space to be safe. + */ +#define DUK_BI_DATE_ISO8601_BUFSIZE 48 + +/* Maximum length of CommonJS module identifier to resolve. Length includes + * both current module ID, requested (possibly relative) module ID, and a + * slash in between. + */ +#define DUK_BI_COMMONJS_MODULE_ID_LIMIT 256 + +/* Helpers exposed for internal use */ +DUK_INTERNAL_DECL void duk_bi_date_timeval_to_parts(duk_double_t d, duk_int_t *parts, duk_double_t *dparts, duk_small_uint_t flags); +DUK_INTERNAL_DECL duk_double_t duk_bi_date_get_timeval_from_dparts(duk_double_t *dparts, duk_small_uint_t flags); +DUK_INTERNAL_DECL void duk_bi_date_format_timeval(duk_double_t timeval, duk_uint8_t *out_buf); +DUK_INTERNAL_DECL duk_bool_t duk_bi_date_is_leap_year(duk_int_t year); +DUK_INTERNAL_DECL duk_bool_t duk_bi_date_timeval_in_valid_range(duk_double_t x); +DUK_INTERNAL_DECL duk_bool_t duk_bi_date_year_in_valid_range(duk_double_t year); +DUK_INTERNAL_DECL duk_bool_t duk_bi_date_timeval_in_leeway_range(duk_double_t x); +/* Built-in providers */ +#if defined(DUK_USE_DATE_NOW_GETTIMEOFDAY) +DUK_INTERNAL_DECL duk_double_t duk_bi_date_get_now_gettimeofday(duk_context *ctx); +#endif +#if defined(DUK_USE_DATE_NOW_TIME) +DUK_INTERNAL_DECL duk_double_t duk_bi_date_get_now_time(duk_context *ctx); +#endif +#if defined(DUK_USE_DATE_NOW_WINDOWS) +DUK_INTERNAL_DECL duk_double_t duk_bi_date_get_now_windows(duk_context *ctx); +#endif +#if defined(DUK_USE_DATE_TZO_GMTIME_R) || defined(DUK_USE_DATE_TZO_GMTIME) +DUK_INTERNAL_DECL duk_int_t duk_bi_date_get_local_tzoffset_gmtime(duk_double_t d); +#endif +#if defined(DUK_USE_DATE_TZO_WINDOWS) +DUK_INTERNAL_DECL duk_int_t duk_bi_date_get_local_tzoffset_windows(duk_double_t d); +#endif +#if defined(DUK_USE_DATE_PRS_STRPTIME) +DUK_INTERNAL_DECL duk_bool_t duk_bi_date_parse_string_strptime(duk_context *ctx, const char *str); +#endif +#if defined(DUK_USE_DATE_PRS_GETDATE) +DUK_INTERNAL_DECL duk_bool_t duk_bi_date_parse_string_getdate(duk_context *ctx, const char *str); +#endif +#if defined(DUK_USE_DATE_FMT_STRFTIME) +DUK_INTERNAL_DECL duk_bool_t duk_bi_date_format_parts_strftime(duk_context *ctx, duk_int_t *parts, duk_int_t tzoffset, duk_small_uint_t flags); +#endif + +DUK_INTERNAL_DECL +void duk_bi_json_parse_helper(duk_context *ctx, + duk_idx_t idx_value, + duk_idx_t idx_reviver, + duk_small_uint_t flags); +DUK_INTERNAL_DECL +void duk_bi_json_stringify_helper(duk_context *ctx, + duk_idx_t idx_value, + duk_idx_t idx_replacer, + duk_idx_t idx_space, + duk_small_uint_t flags); + +#endif /* DUK_BUILTIN_PROTOS_H_INCLUDED */ +#line 1 "duk_selftest.h" +/* + * Selftest code + */ + +#ifndef DUK_SELFTEST_H_INCLUDED +#define DUK_SELFTEST_H_INCLUDED + +#if defined(DUK_USE_SELF_TESTS) +DUK_INTERNAL_DECL void duk_selftest_run_tests(void); +#endif + +#endif /* DUK_SELFTEST_H_INCLUDED */ +#line 78 "duk_internal.h" + +#endif /* DUK_INTERNAL_H_INCLUDED */ +#line 1 "duk_replacements.c" +/* + * Replacements for missing platform functions. + * + * Unlike the originals, fpclassify() and signbit() replacements don't + * work on any floating point types, only doubles. The C typing here + * mimics the standard prototypes. + */ + +/* include removed: duk_internal.h */ + +#if defined(DUK_USE_COMPUTED_NAN) +DUK_INTERNAL double duk_computed_nan; +#endif + +#if defined(DUK_USE_COMPUTED_INFINITY) +DUK_INTERNAL double duk_computed_infinity; +#endif + +#if defined(DUK_USE_REPL_FPCLASSIFY) +DUK_INTERNAL int duk_repl_fpclassify(double x) { + duk_double_union u; + duk_uint_fast16_t expt; + duk_small_int_t mzero; + + u.d = x; + expt = (duk_uint_fast16_t) (u.us[DUK_DBL_IDX_US0] & 0x7ff0UL); + if (expt > 0x0000UL && expt < 0x7ff0UL) { + /* expt values [0x001,0x7fe] = normal */ + return DUK_FP_NORMAL; + } + + mzero = (u.ui[DUK_DBL_IDX_UI1] == 0 && (u.ui[DUK_DBL_IDX_UI0] & 0x000fffffUL) == 0); + if (expt == 0x0000UL) { + /* expt 0x000 is zero/subnormal */ + if (mzero) { + return DUK_FP_ZERO; + } else { + return DUK_FP_SUBNORMAL; + } + } else { + /* expt 0xfff is infinite/nan */ + if (mzero) { + return DUK_FP_INFINITE; + } else { + return DUK_FP_NAN; + } + } +} +#endif + +#if defined(DUK_USE_REPL_SIGNBIT) +DUK_INTERNAL int duk_repl_signbit(double x) { + duk_double_union u; + u.d = x; + return (int) (u.uc[DUK_DBL_IDX_UC0] & 0x80UL); +} +#endif + +#if defined(DUK_USE_REPL_ISFINITE) +DUK_INTERNAL int duk_repl_isfinite(double x) { + int c = DUK_FPCLASSIFY(x); + if (c == DUK_FP_NAN || c == DUK_FP_INFINITE) { + return 0; + } else { + return 1; + } +} +#endif + +#if defined(DUK_USE_REPL_ISNAN) +DUK_INTERNAL int duk_repl_isnan(double x) { + int c = DUK_FPCLASSIFY(x); + return (c == DUK_FP_NAN); +} +#endif + +#if defined(DUK_USE_REPL_ISINF) +DUK_INTERNAL int duk_repl_isinf(double x) { + int c = DUK_FPCLASSIFY(x); + return (c == DUK_FP_INFINITE); +} +#endif +#line 1 "duk_strings.c" +/* + * Shared error message strings + * + * To minimize code footprint, try to share error messages inside Duktape + * code. Modern compilers will do this automatically anyway, this is mostly + * for older compilers. + */ + +/* include removed: duk_internal.h */ + +/* Mostly API and built-in method related */ +DUK_INTERNAL const char *duk_str_internal_error = "internal error"; +DUK_INTERNAL const char *duk_str_invalid_count = "invalid count"; +DUK_INTERNAL const char *duk_str_invalid_call_args = "invalid call args"; +DUK_INTERNAL const char *duk_str_not_constructable = "not constructable"; +DUK_INTERNAL const char *duk_str_not_callable = "not callable"; +DUK_INTERNAL const char *duk_str_not_extensible = "not extensible"; +DUK_INTERNAL const char *duk_str_not_writable = "not writable"; +DUK_INTERNAL const char *duk_str_not_configurable = "not configurable"; + +DUK_INTERNAL const char *duk_str_invalid_context = "invalid context"; +DUK_INTERNAL const char *duk_str_push_beyond_alloc_stack = "attempt to push beyond currently allocated stack"; +DUK_INTERNAL const char *duk_str_not_buffer = "not buffer"; /* still in use with verbose messages */ +DUK_INTERNAL const char *duk_str_unexpected_type = "unexpected type"; +DUK_INTERNAL const char *duk_str_defaultvalue_coerce_failed = "[[DefaultValue]] coerce failed"; +DUK_INTERNAL const char *duk_str_number_outside_range = "number outside range"; +DUK_INTERNAL const char *duk_str_not_object_coercible = "not object coercible"; +DUK_INTERNAL const char *duk_str_string_too_long = "string too long"; +DUK_INTERNAL const char *duk_str_buffer_too_long = "buffer too long"; +DUK_INTERNAL const char *duk_str_sprintf_too_long = "sprintf message too long"; +DUK_INTERNAL const char *duk_str_alloc_failed = "alloc failed"; +DUK_INTERNAL const char *duk_str_pop_too_many = "attempt to pop too many entries"; +DUK_INTERNAL const char *duk_str_wrong_buffer_type = "wrong buffer type"; +DUK_INTERNAL const char *duk_str_encode_failed = "encode failed"; +DUK_INTERNAL const char *duk_str_decode_failed = "decode failed"; +DUK_INTERNAL const char *duk_str_no_sourcecode = "no sourcecode"; +DUK_INTERNAL const char *duk_str_concat_result_too_long = "concat result too long"; +DUK_INTERNAL const char *duk_str_unimplemented = "unimplemented"; +DUK_INTERNAL const char *duk_str_unsupported = "unsupported"; +DUK_INTERNAL const char *duk_str_array_length_over_2g = "array length over 2G"; + +/* JSON */ +DUK_INTERNAL const char *duk_str_fmt_ptr = "%p"; +DUK_INTERNAL const char *duk_str_fmt_invalid_json = "invalid json (at offset %ld)"; +DUK_INTERNAL const char *duk_str_jsondec_reclimit = "json decode recursion limit"; +DUK_INTERNAL const char *duk_str_jsonenc_reclimit = "json encode recursion limit"; +DUK_INTERNAL const char *duk_str_cyclic_input = "cyclic input"; + +/* Object property access */ +DUK_INTERNAL const char *duk_str_proxy_revoked = "proxy revoked"; +DUK_INTERNAL const char *duk_str_invalid_base = "invalid base value"; +DUK_INTERNAL const char *duk_str_strict_caller_read = "attempt to read strict 'caller'"; +DUK_INTERNAL const char *duk_str_proxy_rejected = "proxy rejected"; +DUK_INTERNAL const char *duk_str_invalid_array_length = "invalid array length"; +DUK_INTERNAL const char *duk_str_array_length_write_failed = "array length write failed"; +DUK_INTERNAL const char *duk_str_array_length_not_writable = "array length non-writable"; +DUK_INTERNAL const char *duk_str_setter_undefined = "setter undefined"; +DUK_INTERNAL const char *duk_str_redefine_virt_prop = "attempt to redefine virtual property"; +DUK_INTERNAL const char *duk_str_invalid_descriptor = "invalid descriptor"; +DUK_INTERNAL const char *duk_str_property_is_virtual = "property is virtual"; + +/* Compiler */ +DUK_INTERNAL const char *duk_str_parse_error = "parse error"; +DUK_INTERNAL const char *duk_str_duplicate_label = "duplicate label"; +DUK_INTERNAL const char *duk_str_invalid_label = "invalid label"; +DUK_INTERNAL const char *duk_str_invalid_array_literal = "invalid array literal"; +DUK_INTERNAL const char *duk_str_invalid_object_literal = "invalid object literal"; +DUK_INTERNAL const char *duk_str_invalid_var_declaration = "invalid variable declaration"; +DUK_INTERNAL const char *duk_str_cannot_delete_identifier = "cannot delete identifier"; +DUK_INTERNAL const char *duk_str_invalid_expression = "invalid expression"; +DUK_INTERNAL const char *duk_str_invalid_lvalue = "invalid lvalue"; +DUK_INTERNAL const char *duk_str_expected_identifier = "expected identifier"; +DUK_INTERNAL const char *duk_str_empty_expr_not_allowed = "empty expression not allowed"; +DUK_INTERNAL const char *duk_str_invalid_for = "invalid for statement"; +DUK_INTERNAL const char *duk_str_invalid_switch = "invalid switch statement"; +DUK_INTERNAL const char *duk_str_invalid_break_cont_label = "invalid break/continue label"; +DUK_INTERNAL const char *duk_str_invalid_return = "invalid return"; +DUK_INTERNAL const char *duk_str_invalid_try = "invalid try"; +DUK_INTERNAL const char *duk_str_invalid_throw = "invalid throw"; +DUK_INTERNAL const char *duk_str_with_in_strict_mode = "with in strict mode"; +DUK_INTERNAL const char *duk_str_func_stmt_not_allowed = "function statement not allowed"; +DUK_INTERNAL const char *duk_str_unterminated_stmt = "unterminated statement"; +DUK_INTERNAL const char *duk_str_invalid_arg_name = "invalid argument name"; +DUK_INTERNAL const char *duk_str_invalid_func_name = "invalid function name"; +DUK_INTERNAL const char *duk_str_invalid_getset_name = "invalid getter/setter name"; +DUK_INTERNAL const char *duk_str_func_name_required = "function name required"; + +/* Regexp */ +DUK_INTERNAL const char *duk_str_invalid_quantifier_no_atom = "quantifier without preceding atom"; +DUK_INTERNAL const char *duk_str_invalid_quantifier_values = "quantifier values invalid (qmin > qmax)"; +DUK_INTERNAL const char *duk_str_quantifier_too_many_copies = "quantifier expansion requires too many atom copies"; +DUK_INTERNAL const char *duk_str_unexpected_closing_paren = "unexpected closing parenthesis"; +DUK_INTERNAL const char *duk_str_unexpected_end_of_pattern = "unexpected end of pattern"; +DUK_INTERNAL const char *duk_str_unexpected_regexp_token = "unexpected token in regexp"; +DUK_INTERNAL const char *duk_str_invalid_regexp_flags = "invalid regexp flags"; +DUK_INTERNAL const char *duk_str_invalid_backrefs = "invalid backreference(s)"; + +/* Limits */ +DUK_INTERNAL const char *duk_str_valstack_limit = "valstack limit"; +DUK_INTERNAL const char *duk_str_callstack_limit = "callstack limit"; +DUK_INTERNAL const char *duk_str_catchstack_limit = "catchstack limit"; +DUK_INTERNAL const char *duk_str_prototype_chain_limit = "prototype chain limit"; +DUK_INTERNAL const char *duk_str_bound_chain_limit = "function call bound chain limit"; +DUK_INTERNAL const char *duk_str_c_callstack_limit = "C call stack depth limit"; +DUK_INTERNAL const char *duk_str_compiler_recursion_limit = "compiler recursion limit"; +DUK_INTERNAL const char *duk_str_bytecode_limit = "bytecode limit"; +DUK_INTERNAL const char *duk_str_reg_limit = "register limit"; +DUK_INTERNAL const char *duk_str_temp_limit = "temp limit"; +DUK_INTERNAL const char *duk_str_const_limit = "const limit"; +DUK_INTERNAL const char *duk_str_func_limit = "function limit"; +DUK_INTERNAL const char *duk_str_regexp_compiler_recursion_limit = "regexp compiler recursion limit"; +DUK_INTERNAL const char *duk_str_regexp_executor_recursion_limit = "regexp executor recursion limit"; +DUK_INTERNAL const char *duk_str_regexp_executor_step_limit = "regexp step limit"; + +/* Misc */ +#line 1 "duk_debug_macros.c" +/* + * Debugging macro calls. + */ + +/* include removed: duk_internal.h */ + +#ifdef DUK_USE_DEBUG + +/* + * Debugging enabled + */ + +#include +#include +#include + +#define DUK__DEBUG_BUFSIZE DUK_USE_DEBUG_BUFSIZE +DUK_LOCAL char duk__debug_buf[DUK__DEBUG_BUFSIZE]; + +DUK_LOCAL const char *duk__get_level_string(duk_small_int_t level) { + switch ((int) level) { + case DUK_LEVEL_DEBUG: + return "D"; + case DUK_LEVEL_DDEBUG: + return "DD"; + case DUK_LEVEL_DDDEBUG: + return "DDD"; + } + return "???"; +} + +#ifdef DUK_USE_DPRINT_COLORS + +/* http://en.wikipedia.org/wiki/ANSI_escape_code */ +#define DUK__TERM_REVERSE "\x1b[7m" +#define DUK__TERM_BRIGHT "\x1b[1m" +#define DUK__TERM_RESET "\x1b[0m" +#define DUK__TERM_BLUE "\x1b[34m" +#define DUK__TERM_RED "\x1b[31m" + +DUK_LOCAL const char *duk__get_term_1(duk_small_int_t level) { + DUK_UNREF(level); + return (const char *) DUK__TERM_RED; +} + +DUK_LOCAL const char *duk__get_term_2(duk_small_int_t level) { + switch ((int) level) { + case DUK_LEVEL_DEBUG: + return (const char *) (DUK__TERM_RESET DUK__TERM_BRIGHT); + case DUK_LEVEL_DDEBUG: + return (const char *) (DUK__TERM_RESET); + case DUK_LEVEL_DDDEBUG: + return (const char *) (DUK__TERM_RESET DUK__TERM_BLUE); + } + return (const char *) DUK__TERM_RESET; +} + +DUK_LOCAL const char *duk__get_term_3(duk_small_int_t level) { + DUK_UNREF(level); + return (const char *) DUK__TERM_RESET; +} + +#else + +DUK_LOCAL const char *duk__get_term_1(duk_small_int_t level) { + DUK_UNREF(level); + return (const char *) ""; +} + +DUK_LOCAL const char *duk__get_term_2(duk_small_int_t level) { + DUK_UNREF(level); + return (const char *) ""; +} + +DUK_LOCAL const char *duk__get_term_3(duk_small_int_t level) { + DUK_UNREF(level); + return (const char *) ""; +} + +#endif /* DUK_USE_DPRINT_COLORS */ + +#ifdef DUK_USE_VARIADIC_MACROS + +DUK_INTERNAL void duk_debug_log(duk_small_int_t level, const char *file, duk_int_t line, const char *func, const char *fmt, ...) { + va_list ap; + + va_start(ap, fmt); + + DUK_MEMZERO((void *) duk__debug_buf, (size_t) DUK__DEBUG_BUFSIZE); + duk_debug_vsnprintf(duk__debug_buf, DUK__DEBUG_BUFSIZE - 1, fmt, ap); + + DUK_FPRINTF(DUK_STDERR, "%s[%s] %s:%ld (%s):%s %s%s\n", + (const char *) duk__get_term_1(level), + (const char *) duk__get_level_string(level), + (const char *) file, + (long) line, + (const char *) func, + (const char *) duk__get_term_2(level), + (const char *) duk__debug_buf, + (const char *) duk__get_term_3(level)); + DUK_FFLUSH(DUK_STDERR); + + va_end(ap); +} + +#else /* DUK_USE_VARIADIC_MACROS */ + +DUK_INTERNAL char duk_debug_file_stash[DUK_DEBUG_STASH_SIZE]; +DUK_INTERNAL char duk_debug_line_stash[DUK_DEBUG_STASH_SIZE]; +DUK_INTERNAL char duk_debug_func_stash[DUK_DEBUG_STASH_SIZE]; +DUK_INTERNAL duk_small_int_t duk_debug_level_stash; + +DUK_INTERNAL void duk_debug_log(const char *fmt, ...) { + va_list ap; + duk_small_int_t level = duk_debug_level_stash; + + va_start(ap, fmt); + + DUK_MEMZERO((void *) duk__debug_buf, (size_t) DUK__DEBUG_BUFSIZE); + duk_debug_vsnprintf(duk__debug_buf, DUK__DEBUG_BUFSIZE - 1, fmt, ap); + + DUK_FPRINTF(DUK_STDERR, "%s[%s] %s:%s (%s):%s %s%s\n", + (const char *) duk__get_term_1(level), + (const char *) duk__get_level_string(duk_debug_level_stash), + (const char *) duk_debug_file_stash, + (const char *) duk_debug_line_stash, + (const char *) duk_debug_func_stash, + (const char *) duk__get_term_2(level), + (const char *) duk__debug_buf, + (const char *) duk__get_term_3(level)); + DUK_FFLUSH(DUK_STDERR); + + va_end(ap); +} + +#endif /* DUK_USE_VARIADIC_MACROS */ + +#else /* DUK_USE_DEBUG */ + +/* + * Debugging disabled + */ + +#endif /* DUK_USE_DEBUG */ +#line 1 "duk_builtins.c" +/* + * Automatically generated by genbuiltins.py, do not edit! + */ + +/* include removed: duk_internal.h */ + +#if defined(DUK_USE_ROM_STRINGS) +#error ROM support not enabled, rerun make_dist.py with --rom-support +#else /* DUK_USE_ROM_STRINGS */ +DUK_INTERNAL const duk_uint8_t duk_strings_data[1049] = { +79,104,209,144,168,105,6,78,182,139,90,122,8,154,140,35,103,35,117,193,73, +5,52,116,180,104,166,135,52,189,4,98,12,27,178,156,80,211,31,161,115,150, +64,52,221,109,24,18,68,157,24,38,67,118,36,55,73,119,151,164,140,93,18,117, +128,153,201,228,201,205,2,250,8,196,24,232,104,82,146,40,232,193,48,118, +168,37,147,212,54,127,113,208,70,32,194,187,68,54,127,113,208,70,32,196, +123,68,54,127,113,209,44,12,121,7,208,70,32,194,186,134,207,236,126,219, +160,140,65,133,246,136,108,254,199,237,186,8,196,24,87,80,217,253,159,217, +116,17,136,48,190,209,13,159,217,253,151,65,24,131,12,233,86,224,79,236, +254,203,160,140,65,134,116,171,112,39,246,223,105,208,70,32,193,140,183,4, +11,55,92,20,244,141,169,186,50,11,164,109,77,208,208,165,36,79,215,185,13, +153,34,110,204,241,32,6,66,84,11,112,200,84,52,157,124,92,242,70,120,45,64, +186,17,22,138,38,0,172,140,19,154,84,26,145,0,86,69,17,180,97,34,0,172,132, +75,144,215,77,221,91,132,5,147,178,156,80,211,30,160,93,9,215,21,115,119, +169,49,75,211,138,26,101,205,222,68,157,47,78,40,105,151,55,120,204,156, +189,56,161,166,52,157,72,136,138,65,154,232,147,162,4,136,150,81,115,66, +208,210,37,96,148,250,134,140,151,39,212,125,255,221,125,73,80,209,146,233, +124,93,55,79,15,34,196,230,202,113,160,166,232,157,132,148,128,98,28,46, +114,200,6,153,180,96,73,19,74,113,67,76,103,5,36,20,211,70,140,133,67,72, +49,245,160,235,81,212,52,168,106,39,132,253,111,80,210,161,168,158,5,245, +191,96,31,172,15,208,23,226,190,131,232,62,131,232,11,251,127,93,245,223, +93,251,172,234,27,80,45,3,250,14,140,19,34,65,19,81,132,108,228,97,1,107, +33,12,32,45,100,136,206,9,12,196,155,134,69,146,100,235,226,231,146,51,194, +72,218,48,145,4,200,119,89,189,81,49,39,72,147,235,226,233,186,120,121,58, +226,167,90,124,93,55,107,71,137,33,68,68,130,64,206,75,189,209,156,144,84, +44,141,3,8,137,187,178,156,80,211,26,110,242,100,230,146,120,121,8,48,76,6, +89,26,105,157,65,196,201,213,145,166,153,212,28,76,157,113,75,34,78,62,14, +38,73,105,228,142,136,178,48,141,152,228,73,150,83,0,148,39,137,75,67,73, +214,209,129,36,85,190,206,32,17,6,9,128,141,3,8,130,161,100,235,64,194,24, +52,41,73,19,189,200,108,201,19,111,181,2,232,66,239,173,37,230,157,244,56, +153,4,225,145,27,233,93,22,1,114,62,251,80,69,128,121,247,213,146,228,109, +79,190,212,17,35,106,125,246,78,164,68,68,111,175,23,217,45,13,33,119,208, +68,210,38,250,192,61,91,233,80,208,45,25,36,81,190,156,13,26,201,19,239, +162,2,214,66,31,125,153,226,64,13,27,236,72,96,130,68,62,251,48,68,196,153, +119,217,157,18,56,156,199,161,100,42,26,250,77,36,140,122,40,144,19,34,9, +24,246,103,139,172,150,56,125,145,1,17,29,44,112,250,183,0,100,24,200,218, +140,228,185,130,9,19,237,190,208,73,184,146,35,68,146,163,8,50,178,99,136, +44,89,196,2,33,70,64,208,196,67,74,226,88,17,105,73,24,186,37,40,38,5,133, +161,89,4,183,25,115,119,86,227,118,83,138,26,103,255,223,209,106,141,25,11, +244,95,117,56,208,159,250,223,251,250,45,52,13,250,47,186,156,104,79,253, +111,253,253,22,144,210,253,23,221,78,52,39,254,187,254,254,139,77,67,75, +244,95,117,56,208,159,250,239,251,250,45,22,141,23,209,125,212,227,66,127, +235,63,239,69,163,69,247,83,141,9,255,165,12,72,5,16,64,145,10,32,76,71,64, +156,217,161,180,34,6,64,208,198,36,78,50,20,20,92,204,50,44,147,32,134,226, +17,114,33,202,134,129,107,192,202,232,160,180,104,166,135,52,72,40,144,213, +33,178,152,26,34,56,163,105,44,104,146,116,139,77,43,34,98,57,38,116,72, +179,60,93,97,206,56,52,240,242,56,163,168,34,81,57,178,153,42,228,12,182, +58,22,66,89,19,57,68,176,74,68,35,104,195,18,239,116,102,114,94,100,104, +228,100,49,238,140,203,42,60,145,35,104,181,146,113,161,10,80,46,68,82,24, +245,145,132,108,228,148,54,100,137,64,34,13,100,153,222,1,40,6,33,223,20, +84,19,34,95,23,76,130,153,6,103,208,43,64,141,41,130,104,17,112,130,44,96, +}; +#endif /* DUK_USE_ROM_STRINGS */ + +#if defined(DUK_USE_ROM_OBJECTS) +#error ROM support not enabled, rerun make_dist.py with --rom-support +#else /* DUK_USE_ROM_OBJECTS */ +/* native functions: 149 */ +DUK_INTERNAL const duk_c_function duk_bi_native_functions[149] = { + duk_bi_array_constructor, + duk_bi_array_constructor_is_array, + duk_bi_array_prototype_concat, + duk_bi_array_prototype_indexof_shared, + duk_bi_array_prototype_iter_shared, + duk_bi_array_prototype_join_shared, + duk_bi_array_prototype_pop, + duk_bi_array_prototype_push, + duk_bi_array_prototype_reduce_shared, + duk_bi_array_prototype_reverse, + duk_bi_array_prototype_shift, + duk_bi_array_prototype_slice, + duk_bi_array_prototype_sort, + duk_bi_array_prototype_splice, + duk_bi_array_prototype_to_string, + duk_bi_array_prototype_unshift, + duk_bi_arraybuffer_constructor, + duk_bi_arraybuffer_isview, + duk_bi_boolean_constructor, + duk_bi_boolean_prototype_tostring_shared, + duk_bi_buffer_compare_shared, + duk_bi_buffer_constructor, + duk_bi_buffer_prototype_tostring_shared, + duk_bi_buffer_readfield, + duk_bi_buffer_slice_shared, + duk_bi_buffer_writefield, + duk_bi_dataview_constructor, + duk_bi_date_constructor, + duk_bi_date_constructor_now, + duk_bi_date_constructor_parse, + duk_bi_date_constructor_utc, + duk_bi_date_prototype_get_shared, + duk_bi_date_prototype_get_timezone_offset, + duk_bi_date_prototype_set_shared, + duk_bi_date_prototype_set_time, + duk_bi_date_prototype_to_json, + duk_bi_date_prototype_tostring_shared, + duk_bi_date_prototype_value_of, + duk_bi_duktape_object_act, + duk_bi_duktape_object_compact, + duk_bi_duktape_object_dec, + duk_bi_duktape_object_enc, + duk_bi_duktape_object_fin, + duk_bi_duktape_object_gc, + duk_bi_duktape_object_info, + duk_bi_error_constructor_shared, + duk_bi_error_prototype_filename_getter, + duk_bi_error_prototype_filename_setter, + duk_bi_error_prototype_linenumber_getter, + duk_bi_error_prototype_linenumber_setter, + duk_bi_error_prototype_stack_getter, + duk_bi_error_prototype_stack_setter, + duk_bi_error_prototype_to_string, + duk_bi_function_constructor, + duk_bi_function_prototype, + duk_bi_function_prototype_apply, + duk_bi_function_prototype_bind, + duk_bi_function_prototype_call, + duk_bi_function_prototype_to_string, + duk_bi_global_object_decode_uri, + duk_bi_global_object_decode_uri_component, + duk_bi_global_object_encode_uri, + duk_bi_global_object_encode_uri_component, + duk_bi_global_object_escape, + duk_bi_global_object_eval, + duk_bi_global_object_is_finite, + duk_bi_global_object_is_nan, + duk_bi_global_object_parse_float, + duk_bi_global_object_parse_int, + duk_bi_global_object_print_helper, + duk_bi_global_object_require, + duk_bi_global_object_unescape, + duk_bi_json_object_parse, + duk_bi_json_object_stringify, + duk_bi_logger_constructor, + duk_bi_logger_prototype_fmt, + duk_bi_logger_prototype_log_shared, + duk_bi_logger_prototype_raw, + duk_bi_math_object_max, + duk_bi_math_object_min, + duk_bi_math_object_onearg_shared, + duk_bi_math_object_random, + duk_bi_math_object_twoarg_shared, + duk_bi_nodejs_buffer_byte_length, + duk_bi_nodejs_buffer_concat, + duk_bi_nodejs_buffer_constructor, + duk_bi_nodejs_buffer_copy, + duk_bi_nodejs_buffer_fill, + duk_bi_nodejs_buffer_is_buffer, + duk_bi_nodejs_buffer_is_encoding, + duk_bi_nodejs_buffer_tojson, + duk_bi_nodejs_buffer_tostring, + duk_bi_nodejs_buffer_write, + duk_bi_number_constructor, + duk_bi_number_prototype_to_exponential, + duk_bi_number_prototype_to_fixed, + duk_bi_number_prototype_to_locale_string, + duk_bi_number_prototype_to_precision, + duk_bi_number_prototype_to_string, + duk_bi_number_prototype_value_of, + duk_bi_object_constructor, + duk_bi_object_constructor_create, + duk_bi_object_constructor_define_properties, + duk_bi_object_constructor_define_property, + duk_bi_object_constructor_get_own_property_descriptor, + duk_bi_object_constructor_is_extensible, + duk_bi_object_constructor_is_sealed_frozen_shared, + duk_bi_object_constructor_keys_shared, + duk_bi_object_constructor_prevent_extensions, + duk_bi_object_constructor_seal_freeze_shared, + duk_bi_object_getprototype_shared, + duk_bi_object_prototype_has_own_property, + duk_bi_object_prototype_is_prototype_of, + duk_bi_object_prototype_property_is_enumerable, + duk_bi_object_prototype_to_locale_string, + duk_bi_object_prototype_to_string, + duk_bi_object_prototype_value_of, + duk_bi_object_setprototype_shared, + duk_bi_pointer_constructor, + duk_bi_pointer_prototype_tostring_shared, + duk_bi_proxy_constructor, + duk_bi_regexp_constructor, + duk_bi_regexp_prototype_exec, + duk_bi_regexp_prototype_test, + duk_bi_regexp_prototype_to_string, + duk_bi_string_constructor, + duk_bi_string_constructor_from_char_code, + duk_bi_string_prototype_caseconv_shared, + duk_bi_string_prototype_char_at, + duk_bi_string_prototype_char_code_at, + duk_bi_string_prototype_concat, + duk_bi_string_prototype_indexof_shared, + duk_bi_string_prototype_locale_compare, + duk_bi_string_prototype_match, + duk_bi_string_prototype_replace, + duk_bi_string_prototype_search, + duk_bi_string_prototype_slice, + duk_bi_string_prototype_split, + duk_bi_string_prototype_substr, + duk_bi_string_prototype_substring, + duk_bi_string_prototype_to_string, + duk_bi_string_prototype_trim, + duk_bi_thread_constructor, + duk_bi_thread_current, + duk_bi_thread_resume, + duk_bi_thread_yield, + duk_bi_type_error_thrower, + duk_bi_typedarray_constructor, + duk_bi_typedarray_set, +}; +#if defined(DUK_USE_BUILTIN_INITJS) +DUK_INTERNAL const duk_uint8_t duk_initjs_data[187] = { +40,102,117,110,99,116,105,111,110,40,100,44,97,41,123,102,117,110,99,116, +105,111,110,32,98,40,97,44,98,44,99,41,123,79,98,106,101,99,116,46,100,101, +102,105,110,101,80,114,111,112,101,114,116,121,40,97,44,98,44,123,118,97, +108,117,101,58,99,44,119,114,105,116,97,98,108,101,58,33,48,44,101,110,117, +109,101,114,97,98,108,101,58,33,49,44,99,111,110,102,105,103,117,114,97,98, +108,101,58,33,48,125,41,125,98,40,97,46,76,111,103,103,101,114,44,34,99, +108,111,103,34,44,110,101,119,32,97,46,76,111,103,103,101,114,40,34,67,34, +41,41,59,98,40,97,44,34,109,111,100,76,111,97,100,101,100,34,44,123,125,41, +125,41,40,116,104,105,115,44,68,117,107,116,97,112,101,41,59,10,0, +}; +#endif /* DUK_USE_BUILTIN_INITJS */ +#if defined(DUK_USE_DOUBLE_LE) +DUK_INTERNAL const duk_uint8_t duk_builtins_data[3833] = { +105,195,75,32,3,148,52,154,248,9,26,13,128,112,105,0,240,22,20,26,95,124,6, +152,52,137,0,120,99,74,239,129,18,70,241,191,2,98,13,79,32,42,88,210,90,2, +240,1,50,141,37,168,76,94,216,118,69,229,203,127,44,0,84,163,73,106,21,75, +14,236,249,98,242,229,191,150,0,46,81,164,181,14,165,151,54,94,89,119,99, +203,23,151,45,252,176,1,146,141,37,168,93,63,59,186,97,241,23,151,45,252, +176,1,178,141,37,168,77,79,60,50,197,229,203,127,44,0,116,163,73,106,17,86, +148,152,188,185,111,229,128,15,148,129,198,137,36,58,166,142,91,251,212, +243,195,44,94,92,183,242,13,79,8,45,14,91,252,121,148,52,199,120,63,72,105, +21,240,118,128,210,237,224,245,17,165,43,224,211,55,231,207,151,148,161,70, +145,0,31,40,107,26,2,18,138,26,228,192,142,0,16,161,174,76,9,74,26,228,192, +158,0,8,161,174,76,10,96,2,42,26,228,192,174,0,26,161,174,76,11,96,3,74,26, +228,192,190,0,44,161,174,76,12,96,3,202,26,228,192,206,0,70,161,169,84,14, +202,3,255,254,32,234,0,0,0,0,0,0,7,195,248,119,0,0,0,0,0,0,3,193,252,57, +136,1,152,32,16,194,0,166,24,6,49,0,57,138,2,12,96,18,99,128,163,32,5,153, +40,76,94,216,118,69,229,203,127,35,41,10,165,135,118,124,177,121,114,223, +200,203,67,169,101,205,151,150,93,216,242,197,229,203,127,35,49,11,167,231, +119,76,62,34,242,229,191,145,154,132,212,243,195,44,94,92,183,242,51,144, +138,180,164,197,229,203,127,35,60,6,26,0,52,208,193,226,117,215,211,15,12, +166,146,11,67,150,255,30,77,24,58,113,64,243,92,8,27,0,68,217,130,70,212, +19,54,224,161,185,5,77,216,44,111,65,115,126,12,28,16,100,225,156,16,32,18, +17,195,15,46,121,100,238,232,136,136,87,12,60,185,229,141,179,126,30,136, +100,130,233,231,59,12,228,34,66,52,243,141,167,118,158,153,80,73,9,201,151, +30,252,153,106,210,146,118,72,150,76,184,247,228,203,86,148,152,123,246, +240,223,187,46,238,135,132,132,229,221,143,126,76,181,105,73,61,36,75,46, +236,123,242,101,171,74,76,61,251,120,111,221,151,119,67,226,65,178,243,199, +135,134,83,242,66,58,238,203,207,30,30,25,81,201,5,225,203,78,238,136,163, +208,92,59,50,242,232,138,62,0,2,38,163,19,255,255,224,142,80,192,0,20,31, +240,14,135,103,203,210,135,45,253,55,244,243,195,44,252,205,197,0,1,18,221, +82,0,3,24,207,151,164,254,251,168,114,223,195,47,46,158,98,101,231,143,150, +158,29,55,242,104,68,79,62,94,147,251,238,161,203,127,12,188,186,121,157, +135,110,94,109,100,131,99,229,151,15,76,172,168,8,89,217,16,201,151,54,157, +217,104,114,223,195,47,46,154,114,243,102,68,19,158,92,59,27,73,6,205,203, +46,95,89,91,74,0,3,17,225,203,47,108,187,186,69,241,211,46,238,122,119,238, +230,216,72,70,158,116,242,225,217,151,35,81,33,26,121,198,229,191,214,93, +205,69,0,1,134,105,231,23,199,76,187,185,233,197,179,43,73,32,154,242,249, +230,214,80,0,31,255,193,2,38,103,110,117,24,81,115,0,78,228,0,161,208,16, +237,24,121,207,239,186,135,45,252,50,242,233,229,188,144,221,60,232,114, +223,211,127,79,60,50,207,204,224,72,167,14,91,248,101,229,211,204,158,113, +119,117,219,151,150,28,91,50,184,144,40,95,224,0,15,248,64,4,20,78,129,5, +195,195,134,207,38,232,130,99,195,179,97,201,244,19,22,157,217,14,15,130, +135,254,0,48,125,60,224,242,229,135,200,9,1,255,12,2,162,136,112,2,112,80, +128,0,193,177,239,221,143,15,64,35,224,152,20,144,62,27,248,3,2,9,195,175, +61,0,231,208,126,89,123,101,229,207,40,72,32,188,244,105,205,208,40,16,94, +123,52,227,202,22,136,39,61,252,186,6,18,13,207,134,205,56,242,134,175,65, +250,238,231,163,78,110,129,231,208,125,59,178,101,241,63,48,25,248,0,12,47, +102,30,125,36,238,201,151,196,252,192,103,255,255,240,92,189,178,242,242,8, +105,4,231,191,110,80,67,80,0,24,62,109,252,162,225,199,160,16,212,0,10,7, +183,15,0,67,80,0,56,54,109,59,58,101,228,8,106,0,9,6,229,151,39,92,121,66, +15,192,0,97,124,178,228,235,143,45,45,57,244,116,8,63,255,255,10,39,248,0, +195,51,114,223,182,30,140,60,161,239,201,149,248,248,31,241,0,140,80,129, +202,10,49,128,10,35,1,6,199,163,15,40,61,32,9,10,199,163,15,40,123,242,101, +131,210,4,144,108,123,247,99,195,210,8,250,15,167,118,76,190,39,230,131,52, +133,236,195,207,164,157,217,50,248,159,154,12,212,0,6,27,179,126,60,59,50, +195,223,183,134,30,89,97,9,5,219,135,166,61,16,164,131,242,203,195,102,28, +121,97,145,6,231,151,15,44,122,33,201,5,231,179,78,60,177,8,130,243,225, +179,79,72,148,66,121,245,197,207,167,45,59,179,197,162,23,211,124,205,253, +242,242,135,135,158,87,240,68,122,111,153,191,30,29,153,102,111,239,151, +148,60,60,242,191,130,23,211,125,94,28,50,242,135,135,158,87,240,128,0,196, +122,111,153,191,30,29,153,106,240,225,151,148,60,60,242,191,132,0,6,9,211, +150,157,177,160,131,115,235,139,159,78,81,72,10,47,248,0,3,254,40,17,138, +48,66,136,152,64,0,66,129,48,5,27,252,88,76,216,54,47,214,131,50,172,88,31, +255,255,255,255,255,253,239,240,153,178,103,95,173,6,101,88,176,0,64,0,0,0, +0,0,0,3,168,0,0,0,0,0,0,31,15,241,26,19,233,201,169,38,180,91,242,103,70, +147,58,77,75,48,0,0,0,0,0,0,60,31,226,51,162,199,131,82,77,104,183,228,206, +141,38,116,154,150,96,0,0,0,0,0,0,120,127,128,15,248,192,70,40,0,0,0,0,0,0, +0,0,3,10,44,68,9,216,8,20,49,130,15,211,124,109,62,50,228,95,36,55,166,248, +190,56,111,221,151,119,77,56,118,47,18,23,211,125,14,89,113,233,231,167, +126,230,18,5,31,252,0,224,188,48,242,231,148,116,144,58,181,33,143,127,64, +247,111,238,56,0,127,199,2,49,72,0,0,0,0,0,0,248,127,180,81,36,4,51,166, +248,152,122,101,167,211,150,157,217,201,2,0,3,12,233,190,166,157,185,105, +244,229,167,118,114,64,128,1,4,228,129,0,3,137,116,223,51,126,60,59,50,196, +195,211,45,62,156,180,238,206,72,16,0,72,151,77,243,55,227,195,179,45,77, +59,114,211,233,203,78,236,228,129,0,5,10,73,2,0,12,21,18,4,0,28,82,35,32, +80,74,8,62,124,189,42,105,219,148,148,16,188,249,122,70,235,179,101,156, +184,121,15,132,0,34,29,159,47,74,181,33,198,235,179,101,156,184,121,15,132, +0,38,17,159,47,73,187,247,116,208,62,16,0,168,94,124,189,42,212,135,55,126, +238,154,7,194,0,23,7,207,151,164,76,61,50,143,132,0,50,21,159,47,74,181,33, +196,195,211,40,248,64,3,96,217,242,244,137,135,200,248,64,3,161,57,242,244, +171,82,28,76,62,71,194,0,31,8,207,151,164,141,253,121,115,31,8,0,132,47,62, +94,149,106,67,145,191,175,46,99,225,0,17,133,103,203,210,110,157,221,122, +101,230,62,16,1,40,110,124,189,42,212,135,55,78,238,189,50,243,31,8,0,156, +43,62,94,148,242,227,223,187,39,49,240,128,10,67,115,229,233,86,164,58,121, +113,239,221,147,152,248,64,5,97,249,242,244,155,167,102,205,60,242,227,223, +187,39,49,240,128,11,68,179,229,233,86,164,57,186,118,108,211,207,46,61, +251,178,115,31,8,0,188,71,62,94,149,52,237,203,235,126,236,179,243,102,231, +151,161,0,32,252,242,244,169,167,110,82,34,67,249,229,233,55,78,205,154, +121,229,199,191,118,78,100,37,0,24,137,115,203,210,173,72,115,116,236,217, +167,158,92,123,247,100,230,66,80,1,152,87,60,189,41,229,199,191,118,78,100, +43,224,3,80,222,121,122,85,169,14,158,92,123,247,100,230,66,190,0,55,10, +231,151,164,221,59,186,244,203,204,133,252,0,114,27,207,47,74,181,33,205, +211,187,175,76,188,200,95,192,7,97,28,242,244,145,191,175,46,100,51,224,3, +208,190,121,122,85,169,14,70,254,188,185,144,207,128,15,193,249,229,233,19, +15,76,164,37,0,32,133,115,203,210,173,72,113,48,244,202,66,80,2,24,71,60, +189,38,239,221,211,65,10,248,1,20,47,158,94,149,106,67,155,191,119,77,4,43, +224,4,112,190,121,122,70,235,179,101,156,184,121,16,191,128,18,67,185,229, +233,86,164,56,221,118,108,179,151,15,34,23,240,2,88,62,124,189,44,229,195, +200,124,32,4,208,126,121,122,89,203,135,145,9,64,9,194,145,254,0,0,255,144, +24,100,130,14,0,16,176,2,192,129,11,33,12,1,168,193,108,96,186,48,95,32,0, +0,0,0,0,0,0,0,56,38,95,25,113,189,18,9,211,47,62,143,100,20,95,0,20,159, +240,0,7,252,144,162,241,2,195,66,7,11,89,204,140,197,252,229,197,226,230, +115,3,16,69,19,64,5,43,252,0,9,255,40,16,188,33,49,123,97,217,23,151,45, +252,131,66,7,0,20,191,240,0,39,252,176,66,240,133,82,195,187,62,88,188,185, +111,228,26,16,56,0,166,127,128,1,63,230,2,23,132,58,150,92,217,121,101,221, +143,44,94,92,183,242,13,8,28,0,83,127,192,0,159,243,65,11,194,23,79,206, +238,152,124,69,229,203,127,32,208,129,192,5,59,252,0,9,255,56,16,188,33,53, +60,240,203,23,151,45,252,131,66,7,0,20,255,240,0,39,252,240,66,240,132,85, +165,38,47,46,91,249,6,132,14,0,31,255,228,64,98,192,105,87,20,139,10,191,5, +64,130,76,156,197,132,1,101,91,91,187,22,176,36,8,28,201,204,160,119,156, +253,127,33,23,115,31,193,102,79,142,202,44,15,232,34,182,84,113,95,115,248, +52,201,241,216,176,139,0,59,148,152,85,239,47,108,254,5,66,76,1,130,212,69, +79,178,16,148,8,61,58,52,170,49,190,202,6,105,219,251,52,245,7,49,252,22, +157,26,85,25,64,205,59,127,102,158,160,246,63,74,7,135,23,53,2,65,48,227, +223,205,64,160,0,48,76,60,244,238,80,40,0,20,19,15,76,59,148,10,0,7,5,195, +211,14,230,74,72,130,99,203,167,98,129,64,1,32,120,247,243,80,40,0,44,15, +47,142,10,5,0,6,130,230,217,191,127,37,2,128,3,192,246,111,206,160,80,0, +136,30,220,62,19,151,160,123,116,238,79,94,129,240,223,221,73,32,0,48,110, +88,119,100,223,181,68,16,94,91,250,238,200,160,80,0,152,31,61,59,148,10,0, +21,4,231,199,151,69,2,128,5,192,250,97,220,160,80,0,192,127,255,128,20,23, +134,30,92,242,164,34,19,207,167,45,59,179,233,205,229,37,129,127,255,0,0, +191,255,128,0,63,255,197,131,246,203,203,158,157,251,160,0,0,0,0,0,65,98, +32,3,166,156,30,53,32,249,165,131,76,223,159,62,94,70,172,114,16,176,144, +60,56,250,19,18,5,159,25,89,32,121,180,238,42,30,129,229,221,140,164,122,7, +147,46,50,129,232,62,61,251,120,97,199,208,156,129,83,127,0,50,250,69,3, +252,131,32,248,250,242,229,151,119,72,240,3,254,148,0,2,168,254,0,0,255, +167,0,33,68,88,32,0,33,64,176,2,170,254,0,0,255,169,0,33,69,220,32,0,33,67, +184,2,172,254,0,0,255,171,8,137,144,0,0,0,0,0,0,0,128,68,73,4,195,187,126, +226,8,4,178,16,41,164,32,147,7,136,52,193,240,0,18,17,48,124,0,8,133,76,31, +0,3,33,147,7,192,1,8,116,193,240,0,82,127,255,132,47,65,11,137,191,174,45, +153,98,242,229,191,144,105,4,95,47,46,91,249,32,211,185,6,94,92,183,242,65, +163,14,236,155,52,238,206,0,85,255,192,6,13,167,157,109,57,123,136,144,31, +245,192,3,5,231,179,78,60,163,9,0,2,10,199,248,0,3,254,192,4,32,249,242, +244,147,187,163,129,116,128,24,66,51,229,233,87,78,238,142,5,210,0,65,8, +207,151,164,157,221,24,182,23,72,1,140,39,62,94,149,116,238,232,197,176, +186,64,8,97,25,242,244,147,187,163,54,66,233,0,50,132,231,203,210,174,157, +221,25,178,23,72,1,20,43,62,94,145,182,111,195,209,155,33,116,128,17,194, +179,229,233,27,102,252,61,27,52,23,72,1,36,31,158,94,146,119,116,112,50, +208,3,8,71,60,189,42,233,221,209,192,203,64,8,33,28,242,244,147,187,163,22, +195,45,0,49,132,243,203,210,174,157,221,24,182,25,104,1,12,35,158,94,146, +119,116,102,200,101,160,6,80,158,121,122,85,211,187,163,54,67,45,0,34,133, +115,203,210,54,205,248,122,51,100,50,208,2,56,87,60,189,35,108,223,135,163, +102,131,45,0,36,7,255,248,1,11,50,136,132,115,235,139,15,46,88,124,140,36, +0,4,43,79,224,139,16,0,0,0,0,0,0,60,15,192,101,253,152,0,5,109,252,17,98,0, +0,0,0,0,0,7,129,248,12,191,181,0,0,174,63,130,44,64,0,0,0,0,0,0,240,63,1, +151,246,224,0,21,215,240,69,136,0,0,0,0,0,0,0,8,0,50,254,228,0,2,188,254,8, +177,0,0,0,0,0,0,0,1,0,6,95,221,128,0,87,223,193,22,32,0,0,0,0,0,0,8,32,0, +203,251,208,0,11,3,248,34,196,0,0,0,0,0,0,1,4,0,25,127,126,0,1,97,127,4,88, +128,0,0,0,0,0,0,32,128,3,47,240,64,0,44,79,224,139,16,0,0,0,0,0,0,8,16,0, +101,254,24,0,5,141,252,1,96,216,247,238,199,135,162,162,33,90,121,197,221, +143,126,77,59,179,172,146,17,167,156,46,185,179,101,228,176,65,89,77,16, +124,123,246,240,195,203,40,162,64,0,193,255,138,5,144,158,89,112,228,171, +39,119,71,2,232,132,114,203,135,36,157,221,28,11,164,0,66,25,203,46,28,149, +100,238,232,197,180,200,162,233,0,1,134,114,203,135,37,89,59,186,49,109,10, +40,186,64,2,97,124,178,225,201,39,119,70,45,166,69,23,72,0,140,47,150,92, +57,36,238,232,197,180,40,162,233,0,25,134,114,203,135,37,89,59,186,51,101, +50,40,186,64,0,161,156,178,225,201,86,78,238,140,217,66,138,46,144,0,168, +95,44,184,114,73,221,209,155,41,145,69,210,0,37,11,229,151,14,73,59,186,51, +101,10,40,186,64,6,161,124,178,225,201,27,102,252,61,38,69,23,72,0,28,47, +150,92,57,35,108,223,135,164,40,162,233,0,11,134,114,203,135,36,77,253,113, +108,203,50,40,186,64,1,33,156,178,225,201,19,127,92,91,50,194,138,46,144,0, +200,87,44,184,114,85,147,187,164,200,162,237,0,5,133,114,203,135,37,89,59, +186,66,138,46,208,0,216,79,44,184,114,73,221,210,100,81,118,128,10,194,121, +101,195,146,78,238,144,162,139,180,0,118,21,223,150,158,153,106,201,221, +209,192,203,33,61,249,105,233,150,78,238,142,6,90,0,33,13,239,203,79,76, +181,100,238,232,197,180,200,163,45,0,1,134,247,229,167,166,90,178,119,116, +98,218,20,81,150,128,4,195,59,242,211,211,44,157,221,24,182,153,20,101,160, +2,48,206,252,180,244,203,39,119,70,45,161,69,25,104,0,204,55,191,45,61,50, +213,147,187,163,54,83,34,140,180,0,10,27,223,150,158,153,106,201,221,209, +155,40,81,70,90,0,21,12,239,203,79,76,178,119,116,102,202,100,81,150,128,9, +67,59,242,211,211,44,157,221,25,178,133,20,101,160,3,80,206,252,180,244, +203,27,102,252,61,38,69,25,104,0,28,51,191,45,61,50,198,217,191,15,72,81, +70,90,0,23,13,239,203,79,76,177,55,245,197,179,44,200,163,45,0,4,134,247, +229,167,166,88,155,250,226,217,150,20,81,150,128,6,66,251,242,211,211,45, +89,59,186,76,138,51,16,0,88,95,126,90,122,101,171,39,119,72,81,70,98,0,27, +10,239,203,79,76,178,119,116,153,20,102,32,2,176,174,252,180,244,203,39, +119,72,81,70,98,0,58,40,173,176,82,90,4,19,54,157,155,21,217,6,203,199,174, +29,156,197,9,7,199,191,111,12,60,178,138,20,0,6,9,143,127,15,42,208,130, +243,217,167,30,81,132,65,123,242,211,211,42,228,0, +}; +#elif defined(DUK_USE_DOUBLE_BE) +DUK_INTERNAL const duk_uint8_t duk_builtins_data[3833] = { +105,195,75,32,3,148,52,154,248,9,26,13,128,112,105,0,240,22,20,26,95,124,6, +152,52,137,0,120,99,74,239,129,18,70,241,191,2,98,13,79,32,42,88,210,90,2, +240,1,50,141,37,168,76,94,216,118,69,229,203,127,44,0,84,163,73,106,21,75, +14,236,249,98,242,229,191,150,0,46,81,164,181,14,165,151,54,94,89,119,99, +203,23,151,45,252,176,1,146,141,37,168,93,63,59,186,97,241,23,151,45,252, +176,1,178,141,37,168,77,79,60,50,197,229,203,127,44,0,116,163,73,106,17,86, +148,152,188,185,111,229,128,15,148,129,198,137,36,58,166,142,91,251,212, +243,195,44,94,92,183,242,13,79,8,45,14,91,252,121,148,52,199,120,63,72,105, +21,240,118,128,210,237,224,245,17,165,43,224,211,55,231,207,151,148,161,70, +145,0,31,40,107,26,2,18,138,26,228,192,142,0,16,161,174,76,9,74,26,228,192, +158,0,8,161,174,76,10,96,2,42,26,228,192,174,0,26,161,174,76,11,96,3,74,26, +228,192,190,0,44,161,174,76,12,96,3,202,26,228,192,206,0,70,161,169,84,14, +202,3,255,254,32,234,3,255,192,0,0,0,0,0,0,119,1,255,192,0,0,0,0,0,0,57, +136,1,152,32,16,194,0,166,24,6,49,0,57,138,2,12,96,18,99,128,163,32,5,153, +40,76,94,216,118,69,229,203,127,35,41,10,165,135,118,124,177,121,114,223, +200,203,67,169,101,205,151,150,93,216,242,197,229,203,127,35,49,11,167,231, +119,76,62,34,242,229,191,145,154,132,212,243,195,44,94,92,183,242,51,144, +138,180,164,197,229,203,127,35,60,6,26,0,52,208,193,226,117,215,211,15,12, +166,146,11,67,150,255,30,77,24,58,113,64,243,92,8,27,0,68,217,130,70,212, +19,54,224,161,185,5,77,216,44,111,65,115,126,12,28,16,100,225,156,16,32,18, +17,195,15,46,121,100,238,232,136,136,87,12,60,185,229,141,179,126,30,136, +100,130,233,231,59,12,228,34,66,52,243,141,167,118,158,153,80,73,9,201,151, +30,252,153,106,210,146,118,72,150,76,184,247,228,203,86,148,152,123,246, +240,223,187,46,238,135,132,132,229,221,143,126,76,181,105,73,61,36,75,46, +236,123,242,101,171,74,76,61,251,120,111,221,151,119,67,226,65,178,243,199, +135,134,83,242,66,58,238,203,207,30,30,25,81,201,5,225,203,78,238,136,163, +208,92,59,50,242,232,138,62,0,2,38,163,19,255,255,224,142,80,192,0,20,31, +240,14,135,103,203,210,135,45,253,55,244,243,195,44,252,205,197,0,1,18,221, +82,0,3,24,207,151,164,254,251,168,114,223,195,47,46,158,98,101,231,143,150, +158,29,55,242,104,68,79,62,94,147,251,238,161,203,127,12,188,186,121,157, +135,110,94,109,100,131,99,229,151,15,76,172,168,8,89,217,16,201,151,54,157, +217,104,114,223,195,47,46,154,114,243,102,68,19,158,92,59,27,73,6,205,203, +46,95,89,91,74,0,3,17,225,203,47,108,187,186,69,241,211,46,238,122,119,238, +230,216,72,70,158,116,242,225,217,151,35,81,33,26,121,198,229,191,214,93, +205,69,0,1,134,105,231,23,199,76,187,185,233,197,179,43,73,32,154,242,249, +230,214,80,0,31,255,193,2,38,103,110,117,24,81,115,0,78,228,0,161,208,16, +237,24,121,207,239,186,135,45,252,50,242,233,229,188,144,221,60,232,114, +223,211,127,79,60,50,207,204,224,72,167,14,91,248,101,229,211,204,158,113, +119,117,219,151,150,28,91,50,184,144,40,95,224,0,15,248,64,4,20,78,129,5, +195,195,134,207,38,232,130,99,195,179,97,201,244,19,22,157,217,14,15,130, +135,254,0,48,125,60,224,242,229,135,200,9,1,255,12,2,162,136,112,2,112,80, +128,0,193,177,239,221,143,15,64,35,224,152,20,144,62,27,248,3,2,9,195,175, +61,0,231,208,126,89,123,101,229,207,40,72,32,188,244,105,205,208,40,16,94, +123,52,227,202,22,136,39,61,252,186,6,18,13,207,134,205,56,242,134,175,65, +250,238,231,163,78,110,129,231,208,125,59,178,101,241,63,48,25,248,0,12,47, +102,30,125,36,238,201,151,196,252,192,103,255,255,240,92,189,178,242,242,8, +105,4,231,191,110,80,67,80,0,24,62,109,252,162,225,199,160,16,212,0,10,7, +183,15,0,67,80,0,56,54,109,59,58,101,228,8,106,0,9,6,229,151,39,92,121,66, +15,192,0,97,124,178,228,235,143,45,45,57,244,116,8,63,255,255,10,39,248,0, +195,51,114,223,182,30,140,60,161,239,201,149,248,248,31,241,0,140,80,129, +202,10,49,128,10,35,1,6,199,163,15,40,61,32,9,10,199,163,15,40,123,242,101, +131,210,4,144,108,123,247,99,195,210,8,250,15,167,118,76,190,39,230,131,52, +133,236,195,207,164,157,217,50,248,159,154,12,212,0,6,27,179,126,60,59,50, +195,223,183,134,30,89,97,9,5,219,135,166,61,16,164,131,242,203,195,102,28, +121,97,145,6,231,151,15,44,122,33,201,5,231,179,78,60,177,8,130,243,225, +179,79,72,148,66,121,245,197,207,167,45,59,179,197,162,23,211,124,205,253, +242,242,135,135,158,87,240,68,122,111,153,191,30,29,153,102,111,239,151, +148,60,60,242,191,130,23,211,125,94,28,50,242,135,135,158,87,240,128,0,196, +122,111,153,191,30,29,153,106,240,225,151,148,60,60,242,191,132,0,6,9,211, +150,157,177,160,131,115,235,139,159,78,81,72,10,47,248,0,3,254,40,17,138, +48,66,136,152,64,0,66,129,48,5,27,252,88,76,216,54,47,214,131,50,172,88,15, +253,255,255,255,255,255,255,240,153,178,103,95,173,6,101,88,176,0,0,0,0,0, +0,0,0,67,168,15,255,0,0,0,0,0,0,17,26,19,233,201,169,38,180,91,242,103,70, +147,58,77,75,48,31,252,0,0,0,0,0,0,34,51,162,199,131,82,77,104,183,228,206, +141,38,116,154,150,96,127,248,0,0,0,0,0,0,0,15,248,192,70,40,0,0,0,0,0,0,0, +0,3,10,44,68,9,216,8,20,49,130,15,211,124,109,62,50,228,95,36,55,166,248, +190,56,111,221,151,119,77,56,118,47,18,23,211,125,14,89,113,233,231,167, +126,230,18,5,31,252,0,224,188,48,242,231,148,116,144,58,181,33,143,127,64, +247,111,238,56,0,127,199,2,49,72,127,248,0,0,0,0,0,0,180,81,36,4,51,166, +248,152,122,101,167,211,150,157,217,201,2,0,3,12,233,190,166,157,185,105, +244,229,167,118,114,64,128,1,4,228,129,0,3,137,116,223,51,126,60,59,50,196, +195,211,45,62,156,180,238,206,72,16,0,72,151,77,243,55,227,195,179,45,77, +59,114,211,233,203,78,236,228,129,0,5,10,73,2,0,12,21,18,4,0,28,82,35,32, +80,74,8,62,124,189,42,105,219,148,148,16,188,249,122,70,235,179,101,156, +184,121,15,132,0,34,29,159,47,74,181,33,198,235,179,101,156,184,121,15,132, +0,38,17,159,47,73,187,247,116,208,62,16,0,168,94,124,189,42,212,135,55,126, +238,154,7,194,0,23,7,207,151,164,76,61,50,143,132,0,50,21,159,47,74,181,33, +196,195,211,40,248,64,3,96,217,242,244,137,135,200,248,64,3,161,57,242,244, +171,82,28,76,62,71,194,0,31,8,207,151,164,141,253,121,115,31,8,0,132,47,62, +94,149,106,67,145,191,175,46,99,225,0,17,133,103,203,210,110,157,221,122, +101,230,62,16,1,40,110,124,189,42,212,135,55,78,238,189,50,243,31,8,0,156, +43,62,94,148,242,227,223,187,39,49,240,128,10,67,115,229,233,86,164,58,121, +113,239,221,147,152,248,64,5,97,249,242,244,155,167,102,205,60,242,227,223, +187,39,49,240,128,11,68,179,229,233,86,164,57,186,118,108,211,207,46,61, +251,178,115,31,8,0,188,71,62,94,149,52,237,203,235,126,236,179,243,102,231, +151,161,0,32,252,242,244,169,167,110,82,34,67,249,229,233,55,78,205,154, +121,229,199,191,118,78,100,37,0,24,137,115,203,210,173,72,115,116,236,217, +167,158,92,123,247,100,230,66,80,1,152,87,60,189,41,229,199,191,118,78,100, +43,224,3,80,222,121,122,85,169,14,158,92,123,247,100,230,66,190,0,55,10, +231,151,164,221,59,186,244,203,204,133,252,0,114,27,207,47,74,181,33,205, +211,187,175,76,188,200,95,192,7,97,28,242,244,145,191,175,46,100,51,224,3, +208,190,121,122,85,169,14,70,254,188,185,144,207,128,15,193,249,229,233,19, +15,76,164,37,0,32,133,115,203,210,173,72,113,48,244,202,66,80,2,24,71,60, +189,38,239,221,211,65,10,248,1,20,47,158,94,149,106,67,155,191,119,77,4,43, +224,4,112,190,121,122,70,235,179,101,156,184,121,16,191,128,18,67,185,229, +233,86,164,56,221,118,108,179,151,15,34,23,240,2,88,62,124,189,44,229,195, +200,124,32,4,208,126,121,122,89,203,135,145,9,64,9,194,145,254,0,0,255,144, +24,100,130,14,0,16,176,2,192,129,11,33,12,1,168,193,108,96,186,48,95,32,0, +0,0,0,0,0,0,0,56,38,95,25,113,189,18,9,211,47,62,143,100,20,95,0,20,159, +240,0,7,252,144,162,241,2,195,66,7,11,89,204,140,197,252,229,197,226,230, +115,3,16,69,19,64,5,43,252,0,9,255,40,16,188,33,49,123,97,217,23,151,45, +252,131,66,7,0,20,191,240,0,39,252,176,66,240,133,82,195,187,62,88,188,185, +111,228,26,16,56,0,166,127,128,1,63,230,2,23,132,58,150,92,217,121,101,221, +143,44,94,92,183,242,13,8,28,0,83,127,192,0,159,243,65,11,194,23,79,206, +238,152,124,69,229,203,127,32,208,129,192,5,59,252,0,9,255,56,16,188,33,53, +60,240,203,23,151,45,252,131,66,7,0,20,255,240,0,39,252,240,66,240,132,85, +165,38,47,46,91,249,6,132,14,0,31,255,228,64,98,192,64,5,191,10,139,20,87, +105,130,76,156,197,132,4,0,38,187,27,187,85,81,104,28,201,204,160,31,243, +23,33,127,125,28,247,193,102,79,142,202,44,3,255,113,84,118,82,184,47,232, +52,201,241,216,176,139,0,255,111,45,236,84,155,148,58,5,66,76,4,0,146,31, +181,68,66,209,136,61,58,52,170,49,190,202,1,255,53,4,243,51,249,222,108,22, +157,26,85,25,64,63,246,160,158,102,127,59,205,74,7,135,23,53,2,65,48,227, +223,205,64,160,0,48,76,60,244,238,80,40,0,20,19,15,76,59,148,10,0,7,5,195, +211,14,230,74,72,130,99,203,167,98,129,64,1,32,120,247,243,80,40,0,44,15, +47,142,10,5,0,6,130,230,217,191,127,37,2,128,3,192,246,111,206,160,80,0, +136,30,220,62,19,151,160,123,116,238,79,94,129,240,223,221,73,32,0,48,110, +88,119,100,223,181,68,16,94,91,250,238,200,160,80,0,152,31,61,59,148,10,0, +21,4,231,199,151,69,2,128,5,192,250,97,220,160,80,0,192,127,255,128,20,23, +134,30,92,242,164,34,19,207,167,45,59,179,233,205,229,37,129,127,255,0,0, +191,255,128,0,63,255,197,131,246,203,203,158,157,251,160,32,98,65,0,0,0,0, +0,3,166,156,30,53,32,249,165,131,76,223,159,62,94,70,172,114,16,176,144,60, +56,250,19,18,5,159,25,89,32,121,180,238,42,30,129,229,221,140,164,122,7, +147,46,50,129,232,62,61,251,120,97,199,208,156,129,83,127,0,50,250,69,3, +252,131,32,248,250,242,229,151,119,72,240,3,254,148,0,2,168,254,0,0,255, +167,0,33,68,88,32,0,33,64,176,2,170,254,0,0,255,169,0,33,69,220,32,0,33,67, +184,2,172,254,0,0,255,171,8,137,144,128,0,0,0,0,0,0,0,68,73,4,195,187,126, +226,8,4,178,16,41,164,32,147,7,136,52,193,240,0,18,17,48,124,0,8,133,76,31, +0,3,33,147,7,192,1,8,116,193,240,0,82,127,255,132,47,65,11,137,191,174,45, +153,98,242,229,191,144,105,4,95,47,46,91,249,32,211,185,6,94,92,183,242,65, +163,14,236,155,52,238,206,0,85,255,192,6,13,167,157,109,57,123,136,144,31, +245,192,3,5,231,179,78,60,163,9,0,2,10,199,248,0,3,254,192,4,32,249,242, +244,147,187,163,129,116,128,24,66,51,229,233,87,78,238,142,5,210,0,65,8, +207,151,164,157,221,24,182,23,72,1,140,39,62,94,149,116,238,232,197,176, +186,64,8,97,25,242,244,147,187,163,54,66,233,0,50,132,231,203,210,174,157, +221,25,178,23,72,1,20,43,62,94,145,182,111,195,209,155,33,116,128,17,194, +179,229,233,27,102,252,61,27,52,23,72,1,36,31,158,94,146,119,116,112,50, +208,3,8,71,60,189,42,233,221,209,192,203,64,8,33,28,242,244,147,187,163,22, +195,45,0,49,132,243,203,210,174,157,221,24,182,25,104,1,12,35,158,94,146, +119,116,102,200,101,160,6,80,158,121,122,85,211,187,163,54,67,45,0,34,133, +115,203,210,54,205,248,122,51,100,50,208,2,56,87,60,189,35,108,223,135,163, +102,131,45,0,36,7,255,248,1,11,50,136,132,115,235,139,15,46,88,124,140,36, +0,4,43,79,224,139,16,15,252,0,0,0,0,0,0,0,101,253,152,0,5,109,252,17,98,1, +255,128,0,0,0,0,0,0,12,191,181,0,0,174,63,130,44,64,63,240,0,0,0,0,0,0,1, +151,246,224,0,21,215,240,69,136,8,0,0,0,0,0,0,0,0,50,254,228,0,2,188,254,8, +177,1,0,0,0,0,0,0,0,0,6,95,221,128,0,87,223,193,22,32,32,8,0,0,0,0,0,0,0, +203,251,208,0,11,3,248,34,196,4,1,0,0,0,0,0,0,0,25,127,126,0,1,97,127,4,88, +128,128,32,0,0,0,0,0,0,3,47,240,64,0,44,79,224,139,16,16,8,0,0,0,0,0,0,0, +101,254,24,0,5,141,252,1,96,216,247,238,199,135,162,162,33,90,121,197,221, +143,126,77,59,179,172,146,17,167,156,46,185,179,101,228,176,65,89,77,16, +124,123,246,240,195,203,40,162,64,0,193,255,138,5,144,158,89,112,228,171, +39,119,71,2,232,132,114,203,135,36,157,221,28,11,164,0,66,25,203,46,28,149, +100,238,232,197,180,200,162,233,0,1,134,114,203,135,37,89,59,186,49,109,10, +40,186,64,2,97,124,178,225,201,39,119,70,45,166,69,23,72,0,140,47,150,92, +57,36,238,232,197,180,40,162,233,0,25,134,114,203,135,37,89,59,186,51,101, +50,40,186,64,0,161,156,178,225,201,86,78,238,140,217,66,138,46,144,0,168, +95,44,184,114,73,221,209,155,41,145,69,210,0,37,11,229,151,14,73,59,186,51, +101,10,40,186,64,6,161,124,178,225,201,27,102,252,61,38,69,23,72,0,28,47, +150,92,57,35,108,223,135,164,40,162,233,0,11,134,114,203,135,36,77,253,113, +108,203,50,40,186,64,1,33,156,178,225,201,19,127,92,91,50,194,138,46,144,0, +200,87,44,184,114,85,147,187,164,200,162,237,0,5,133,114,203,135,37,89,59, +186,66,138,46,208,0,216,79,44,184,114,73,221,210,100,81,118,128,10,194,121, +101,195,146,78,238,144,162,139,180,0,118,21,223,150,158,153,106,201,221, +209,192,203,33,61,249,105,233,150,78,238,142,6,90,0,33,13,239,203,79,76, +181,100,238,232,197,180,200,163,45,0,1,134,247,229,167,166,90,178,119,116, +98,218,20,81,150,128,4,195,59,242,211,211,44,157,221,24,182,153,20,101,160, +2,48,206,252,180,244,203,39,119,70,45,161,69,25,104,0,204,55,191,45,61,50, +213,147,187,163,54,83,34,140,180,0,10,27,223,150,158,153,106,201,221,209, +155,40,81,70,90,0,21,12,239,203,79,76,178,119,116,102,202,100,81,150,128,9, +67,59,242,211,211,44,157,221,25,178,133,20,101,160,3,80,206,252,180,244, +203,27,102,252,61,38,69,25,104,0,28,51,191,45,61,50,198,217,191,15,72,81, +70,90,0,23,13,239,203,79,76,177,55,245,197,179,44,200,163,45,0,4,134,247, +229,167,166,88,155,250,226,217,150,20,81,150,128,6,66,251,242,211,211,45, +89,59,186,76,138,51,16,0,88,95,126,90,122,101,171,39,119,72,81,70,98,0,27, +10,239,203,79,76,178,119,116,153,20,102,32,2,176,174,252,180,244,203,39, +119,72,81,70,98,0,58,40,173,176,82,90,4,19,54,157,155,21,217,6,203,199,174, +29,156,197,9,7,199,191,111,12,60,178,138,20,0,6,9,143,127,15,42,208,130, +243,217,167,30,81,132,65,123,242,211,211,42,228,0, +}; +#elif defined(DUK_USE_DOUBLE_ME) +DUK_INTERNAL const duk_uint8_t duk_builtins_data[3833] = { +105,195,75,32,3,148,52,154,248,9,26,13,128,112,105,0,240,22,20,26,95,124,6, +152,52,137,0,120,99,74,239,129,18,70,241,191,2,98,13,79,32,42,88,210,90,2, +240,1,50,141,37,168,76,94,216,118,69,229,203,127,44,0,84,163,73,106,21,75, +14,236,249,98,242,229,191,150,0,46,81,164,181,14,165,151,54,94,89,119,99, +203,23,151,45,252,176,1,146,141,37,168,93,63,59,186,97,241,23,151,45,252, +176,1,178,141,37,168,77,79,60,50,197,229,203,127,44,0,116,163,73,106,17,86, +148,152,188,185,111,229,128,15,148,129,198,137,36,58,166,142,91,251,212, +243,195,44,94,92,183,242,13,79,8,45,14,91,252,121,148,52,199,120,63,72,105, +21,240,118,128,210,237,224,245,17,165,43,224,211,55,231,207,151,148,161,70, +145,0,31,40,107,26,2,18,138,26,228,192,142,0,16,161,174,76,9,74,26,228,192, +158,0,8,161,174,76,10,96,2,42,26,228,192,174,0,26,161,174,76,11,96,3,74,26, +228,192,190,0,44,161,174,76,12,96,3,202,26,228,192,206,0,70,161,169,84,14, +202,3,255,254,32,234,0,0,7,195,248,0,0,0,0,119,0,0,3,193,252,0,0,0,0,57, +136,1,152,32,16,194,0,166,24,6,49,0,57,138,2,12,96,18,99,128,163,32,5,153, +40,76,94,216,118,69,229,203,127,35,41,10,165,135,118,124,177,121,114,223, +200,203,67,169,101,205,151,150,93,216,242,197,229,203,127,35,49,11,167,231, +119,76,62,34,242,229,191,145,154,132,212,243,195,44,94,92,183,242,51,144, +138,180,164,197,229,203,127,35,60,6,26,0,52,208,193,226,117,215,211,15,12, +166,146,11,67,150,255,30,77,24,58,113,64,243,92,8,27,0,68,217,130,70,212, +19,54,224,161,185,5,77,216,44,111,65,115,126,12,28,16,100,225,156,16,32,18, +17,195,15,46,121,100,238,232,136,136,87,12,60,185,229,141,179,126,30,136, +100,130,233,231,59,12,228,34,66,52,243,141,167,118,158,153,80,73,9,201,151, +30,252,153,106,210,146,118,72,150,76,184,247,228,203,86,148,152,123,246, +240,223,187,46,238,135,132,132,229,221,143,126,76,181,105,73,61,36,75,46, +236,123,242,101,171,74,76,61,251,120,111,221,151,119,67,226,65,178,243,199, +135,134,83,242,66,58,238,203,207,30,30,25,81,201,5,225,203,78,238,136,163, +208,92,59,50,242,232,138,62,0,2,38,163,19,255,255,224,142,80,192,0,20,31, +240,14,135,103,203,210,135,45,253,55,244,243,195,44,252,205,197,0,1,18,221, +82,0,3,24,207,151,164,254,251,168,114,223,195,47,46,158,98,101,231,143,150, +158,29,55,242,104,68,79,62,94,147,251,238,161,203,127,12,188,186,121,157, +135,110,94,109,100,131,99,229,151,15,76,172,168,8,89,217,16,201,151,54,157, +217,104,114,223,195,47,46,154,114,243,102,68,19,158,92,59,27,73,6,205,203, +46,95,89,91,74,0,3,17,225,203,47,108,187,186,69,241,211,46,238,122,119,238, +230,216,72,70,158,116,242,225,217,151,35,81,33,26,121,198,229,191,214,93, +205,69,0,1,134,105,231,23,199,76,187,185,233,197,179,43,73,32,154,242,249, +230,214,80,0,31,255,193,2,38,103,110,117,24,81,115,0,78,228,0,161,208,16, +237,24,121,207,239,186,135,45,252,50,242,233,229,188,144,221,60,232,114, +223,211,127,79,60,50,207,204,224,72,167,14,91,248,101,229,211,204,158,113, +119,117,219,151,150,28,91,50,184,144,40,95,224,0,15,248,64,4,20,78,129,5, +195,195,134,207,38,232,130,99,195,179,97,201,244,19,22,157,217,14,15,130, +135,254,0,48,125,60,224,242,229,135,200,9,1,255,12,2,162,136,112,2,112,80, +128,0,193,177,239,221,143,15,64,35,224,152,20,144,62,27,248,3,2,9,195,175, +61,0,231,208,126,89,123,101,229,207,40,72,32,188,244,105,205,208,40,16,94, +123,52,227,202,22,136,39,61,252,186,6,18,13,207,134,205,56,242,134,175,65, +250,238,231,163,78,110,129,231,208,125,59,178,101,241,63,48,25,248,0,12,47, +102,30,125,36,238,201,151,196,252,192,103,255,255,240,92,189,178,242,242,8, +105,4,231,191,110,80,67,80,0,24,62,109,252,162,225,199,160,16,212,0,10,7, +183,15,0,67,80,0,56,54,109,59,58,101,228,8,106,0,9,6,229,151,39,92,121,66, +15,192,0,97,124,178,228,235,143,45,45,57,244,116,8,63,255,255,10,39,248,0, +195,51,114,223,182,30,140,60,161,239,201,149,248,248,31,241,0,140,80,129, +202,10,49,128,10,35,1,6,199,163,15,40,61,32,9,10,199,163,15,40,123,242,101, +131,210,4,144,108,123,247,99,195,210,8,250,15,167,118,76,190,39,230,131,52, +133,236,195,207,164,157,217,50,248,159,154,12,212,0,6,27,179,126,60,59,50, +195,223,183,134,30,89,97,9,5,219,135,166,61,16,164,131,242,203,195,102,28, +121,97,145,6,231,151,15,44,122,33,201,5,231,179,78,60,177,8,130,243,225, +179,79,72,148,66,121,245,197,207,167,45,59,179,197,162,23,211,124,205,253, +242,242,135,135,158,87,240,68,122,111,153,191,30,29,153,102,111,239,151, +148,60,60,242,191,130,23,211,125,94,28,50,242,135,135,158,87,240,128,0,196, +122,111,153,191,30,29,153,106,240,225,151,148,60,60,242,191,132,0,6,9,211, +150,157,177,160,131,115,235,139,159,78,81,72,10,47,248,0,3,254,40,17,138, +48,66,136,152,64,0,66,129,48,5,27,252,88,76,216,54,47,214,131,50,172,88,31, +255,253,239,255,255,255,255,240,153,178,103,95,173,6,101,88,176,0,0,0,0,0, +64,0,0,3,168,0,0,31,15,224,0,0,0,17,26,19,233,201,169,38,180,91,242,103,70, +147,58,77,75,48,0,0,60,31,192,0,0,0,34,51,162,199,131,82,77,104,183,228, +206,141,38,116,154,150,96,0,0,120,127,128,0,0,0,0,15,248,192,70,40,0,0,0,0, +0,0,0,0,3,10,44,68,9,216,8,20,49,130,15,211,124,109,62,50,228,95,36,55,166, +248,190,56,111,221,151,119,77,56,118,47,18,23,211,125,14,89,113,233,231, +167,126,230,18,5,31,252,0,224,188,48,242,231,148,116,144,58,181,33,143,127, +64,247,111,238,56,0,127,199,2,49,72,0,0,248,127,0,0,0,0,180,81,36,4,51,166, +248,152,122,101,167,211,150,157,217,201,2,0,3,12,233,190,166,157,185,105, +244,229,167,118,114,64,128,1,4,228,129,0,3,137,116,223,51,126,60,59,50,196, +195,211,45,62,156,180,238,206,72,16,0,72,151,77,243,55,227,195,179,45,77, +59,114,211,233,203,78,236,228,129,0,5,10,73,2,0,12,21,18,4,0,28,82,35,32, +80,74,8,62,124,189,42,105,219,148,148,16,188,249,122,70,235,179,101,156, +184,121,15,132,0,34,29,159,47,74,181,33,198,235,179,101,156,184,121,15,132, +0,38,17,159,47,73,187,247,116,208,62,16,0,168,94,124,189,42,212,135,55,126, +238,154,7,194,0,23,7,207,151,164,76,61,50,143,132,0,50,21,159,47,74,181,33, +196,195,211,40,248,64,3,96,217,242,244,137,135,200,248,64,3,161,57,242,244, +171,82,28,76,62,71,194,0,31,8,207,151,164,141,253,121,115,31,8,0,132,47,62, +94,149,106,67,145,191,175,46,99,225,0,17,133,103,203,210,110,157,221,122, +101,230,62,16,1,40,110,124,189,42,212,135,55,78,238,189,50,243,31,8,0,156, +43,62,94,148,242,227,223,187,39,49,240,128,10,67,115,229,233,86,164,58,121, +113,239,221,147,152,248,64,5,97,249,242,244,155,167,102,205,60,242,227,223, +187,39,49,240,128,11,68,179,229,233,86,164,57,186,118,108,211,207,46,61, +251,178,115,31,8,0,188,71,62,94,149,52,237,203,235,126,236,179,243,102,231, +151,161,0,32,252,242,244,169,167,110,82,34,67,249,229,233,55,78,205,154, +121,229,199,191,118,78,100,37,0,24,137,115,203,210,173,72,115,116,236,217, +167,158,92,123,247,100,230,66,80,1,152,87,60,189,41,229,199,191,118,78,100, +43,224,3,80,222,121,122,85,169,14,158,92,123,247,100,230,66,190,0,55,10, +231,151,164,221,59,186,244,203,204,133,252,0,114,27,207,47,74,181,33,205, +211,187,175,76,188,200,95,192,7,97,28,242,244,145,191,175,46,100,51,224,3, +208,190,121,122,85,169,14,70,254,188,185,144,207,128,15,193,249,229,233,19, +15,76,164,37,0,32,133,115,203,210,173,72,113,48,244,202,66,80,2,24,71,60, +189,38,239,221,211,65,10,248,1,20,47,158,94,149,106,67,155,191,119,77,4,43, +224,4,112,190,121,122,70,235,179,101,156,184,121,16,191,128,18,67,185,229, +233,86,164,56,221,118,108,179,151,15,34,23,240,2,88,62,124,189,44,229,195, +200,124,32,4,208,126,121,122,89,203,135,145,9,64,9,194,145,254,0,0,255,144, +24,100,130,14,0,16,176,2,192,129,11,33,12,1,168,193,108,96,186,48,95,32,0, +0,0,0,0,0,0,0,56,38,95,25,113,189,18,9,211,47,62,143,100,20,95,0,20,159, +240,0,7,252,144,162,241,2,195,66,7,11,89,204,140,197,252,229,197,226,230, +115,3,16,69,19,64,5,43,252,0,9,255,40,16,188,33,49,123,97,217,23,151,45, +252,131,66,7,0,20,191,240,0,39,252,176,66,240,133,82,195,187,62,88,188,185, +111,228,26,16,56,0,166,127,128,1,63,230,2,23,132,58,150,92,217,121,101,221, +143,44,94,92,183,242,13,8,28,0,83,127,192,0,159,243,65,11,194,23,79,206, +238,152,124,69,229,203,127,32,208,129,192,5,59,252,0,9,255,56,16,188,33,53, +60,240,203,23,151,45,252,131,66,7,0,20,255,240,0,39,252,240,66,240,132,85, +165,38,47,46,91,249,6,132,14,0,31,255,228,64,98,192,10,191,5,64,105,87,20, +139,130,76,156,197,132,11,22,176,36,1,101,91,91,184,28,201,204,160,33,23, +115,31,247,156,253,127,65,102,79,142,202,44,4,113,95,115,255,232,34,182,88, +52,201,241,216,176,139,1,239,47,108,252,59,148,152,86,5,66,76,15,178,16, +148,1,130,212,69,72,61,58,52,170,49,190,202,4,245,7,49,254,105,219,251,52, +22,157,26,85,25,64,158,160,246,63,205,59,127,102,74,7,135,23,53,2,65,48, +227,223,205,64,160,0,48,76,60,244,238,80,40,0,20,19,15,76,59,148,10,0,7,5, +195,211,14,230,74,72,130,99,203,167,98,129,64,1,32,120,247,243,80,40,0,44, +15,47,142,10,5,0,6,130,230,217,191,127,37,2,128,3,192,246,111,206,160,80,0, +136,30,220,62,19,151,160,123,116,238,79,94,129,240,223,221,73,32,0,48,110, +88,119,100,223,181,68,16,94,91,250,238,200,160,80,0,152,31,61,59,148,10,0, +21,4,231,199,151,69,2,128,5,192,250,97,220,160,80,0,192,127,255,128,20,23, +134,30,92,242,164,34,19,207,167,45,59,179,233,205,229,37,129,127,255,0,0, +191,255,128,0,63,255,197,131,246,203,203,158,157,251,160,0,65,98,32,0,0,0, +0,3,166,156,30,53,32,249,165,131,76,223,159,62,94,70,172,114,16,176,144,60, +56,250,19,18,5,159,25,89,32,121,180,238,42,30,129,229,221,140,164,122,7, +147,46,50,129,232,62,61,251,120,97,199,208,156,129,83,127,0,50,250,69,3, +252,131,32,248,250,242,229,151,119,72,240,3,254,148,0,2,168,254,0,0,255, +167,0,33,68,88,32,0,33,64,176,2,170,254,0,0,255,169,0,33,69,220,32,0,33,67, +184,2,172,254,0,0,255,171,8,137,144,0,0,0,128,0,0,0,0,68,73,4,195,187,126, +226,8,4,178,16,41,164,32,147,7,136,52,193,240,0,18,17,48,124,0,8,133,76,31, +0,3,33,147,7,192,1,8,116,193,240,0,82,127,255,132,47,65,11,137,191,174,45, +153,98,242,229,191,144,105,4,95,47,46,91,249,32,211,185,6,94,92,183,242,65, +163,14,236,155,52,238,206,0,85,255,192,6,13,167,157,109,57,123,136,144,31, +245,192,3,5,231,179,78,60,163,9,0,2,10,199,248,0,3,254,192,4,32,249,242, +244,147,187,163,129,116,128,24,66,51,229,233,87,78,238,142,5,210,0,65,8, +207,151,164,157,221,24,182,23,72,1,140,39,62,94,149,116,238,232,197,176, +186,64,8,97,25,242,244,147,187,163,54,66,233,0,50,132,231,203,210,174,157, +221,25,178,23,72,1,20,43,62,94,145,182,111,195,209,155,33,116,128,17,194, +179,229,233,27,102,252,61,27,52,23,72,1,36,31,158,94,146,119,116,112,50, +208,3,8,71,60,189,42,233,221,209,192,203,64,8,33,28,242,244,147,187,163,22, +195,45,0,49,132,243,203,210,174,157,221,24,182,25,104,1,12,35,158,94,146, +119,116,102,200,101,160,6,80,158,121,122,85,211,187,163,54,67,45,0,34,133, +115,203,210,54,205,248,122,51,100,50,208,2,56,87,60,189,35,108,223,135,163, +102,131,45,0,36,7,255,248,1,11,50,136,132,115,235,139,15,46,88,124,140,36, +0,4,43,79,224,139,16,0,0,60,15,192,0,0,0,0,101,253,152,0,5,109,252,17,98,0, +0,7,129,248,0,0,0,0,12,191,181,0,0,174,63,130,44,64,0,0,240,63,0,0,0,0,1, +151,246,224,0,21,215,240,69,136,0,0,0,8,0,0,0,0,0,50,254,228,0,2,188,254,8, +177,0,0,0,1,0,0,0,0,0,6,95,221,128,0,87,223,193,22,32,0,0,8,32,0,0,0,0,0, +203,251,208,0,11,3,248,34,196,0,0,1,4,0,0,0,0,0,25,127,126,0,1,97,127,4,88, +128,0,0,32,128,0,0,0,0,3,47,240,64,0,44,79,224,139,16,0,0,8,16,0,0,0,0,0, +101,254,24,0,5,141,252,1,96,216,247,238,199,135,162,162,33,90,121,197,221, +143,126,77,59,179,172,146,17,167,156,46,185,179,101,228,176,65,89,77,16, +124,123,246,240,195,203,40,162,64,0,193,255,138,5,144,158,89,112,228,171, +39,119,71,2,232,132,114,203,135,36,157,221,28,11,164,0,66,25,203,46,28,149, +100,238,232,197,180,200,162,233,0,1,134,114,203,135,37,89,59,186,49,109,10, +40,186,64,2,97,124,178,225,201,39,119,70,45,166,69,23,72,0,140,47,150,92, +57,36,238,232,197,180,40,162,233,0,25,134,114,203,135,37,89,59,186,51,101, +50,40,186,64,0,161,156,178,225,201,86,78,238,140,217,66,138,46,144,0,168, +95,44,184,114,73,221,209,155,41,145,69,210,0,37,11,229,151,14,73,59,186,51, +101,10,40,186,64,6,161,124,178,225,201,27,102,252,61,38,69,23,72,0,28,47, +150,92,57,35,108,223,135,164,40,162,233,0,11,134,114,203,135,36,77,253,113, +108,203,50,40,186,64,1,33,156,178,225,201,19,127,92,91,50,194,138,46,144,0, +200,87,44,184,114,85,147,187,164,200,162,237,0,5,133,114,203,135,37,89,59, +186,66,138,46,208,0,216,79,44,184,114,73,221,210,100,81,118,128,10,194,121, +101,195,146,78,238,144,162,139,180,0,118,21,223,150,158,153,106,201,221, +209,192,203,33,61,249,105,233,150,78,238,142,6,90,0,33,13,239,203,79,76, +181,100,238,232,197,180,200,163,45,0,1,134,247,229,167,166,90,178,119,116, +98,218,20,81,150,128,4,195,59,242,211,211,44,157,221,24,182,153,20,101,160, +2,48,206,252,180,244,203,39,119,70,45,161,69,25,104,0,204,55,191,45,61,50, +213,147,187,163,54,83,34,140,180,0,10,27,223,150,158,153,106,201,221,209, +155,40,81,70,90,0,21,12,239,203,79,76,178,119,116,102,202,100,81,150,128,9, +67,59,242,211,211,44,157,221,25,178,133,20,101,160,3,80,206,252,180,244, +203,27,102,252,61,38,69,25,104,0,28,51,191,45,61,50,198,217,191,15,72,81, +70,90,0,23,13,239,203,79,76,177,55,245,197,179,44,200,163,45,0,4,134,247, +229,167,166,88,155,250,226,217,150,20,81,150,128,6,66,251,242,211,211,45, +89,59,186,76,138,51,16,0,88,95,126,90,122,101,171,39,119,72,81,70,98,0,27, +10,239,203,79,76,178,119,116,153,20,102,32,2,176,174,252,180,244,203,39, +119,72,81,70,98,0,58,40,173,176,82,90,4,19,54,157,155,21,217,6,203,199,174, +29,156,197,9,7,199,191,111,12,60,178,138,20,0,6,9,143,127,15,42,208,130, +243,217,167,30,81,132,65,123,242,211,211,42,228,0, +}; +#else +#error invalid endianness defines +#endif +#endif /* DUK_USE_ROM_OBJECTS */ +#line 1 "duk_error_macros.c" +/* + * Error, fatal, and panic handling. + */ + +/* include removed: duk_internal.h */ + +#define DUK__ERRFMT_BUFSIZE 256 /* size for formatting buffers */ + +#if defined(DUK_USE_VERBOSE_ERRORS) + +DUK_INTERNAL void duk_err_handle_error_fmt(duk_hthread *thr, const char *filename, duk_uint_t line_and_code, const char *fmt, ...) { + va_list ap; + char msg[DUK__ERRFMT_BUFSIZE]; + va_start(ap, fmt); + (void) DUK_VSNPRINTF(msg, sizeof(msg), fmt, ap); + msg[sizeof(msg) - 1] = (char) 0; + duk_err_create_and_throw(thr, (duk_errcode_t) (line_and_code >> 24), msg, filename, (duk_int_t) (line_and_code & 0x00ffffffL)); + va_end(ap); /* dead code, but ensures portability (see Linux man page notes) */ +} + +DUK_INTERNAL void duk_err_handle_error(duk_hthread *thr, const char *filename, duk_uint_t line_and_code, const char *msg) { + duk_err_create_and_throw(thr, (duk_errcode_t) (line_and_code >> 24), msg, filename, (duk_int_t) (line_and_code & 0x00ffffffL)); +} + +#else /* DUK_USE_VERBOSE_ERRORS */ + +DUK_INTERNAL void duk_err_handle_error(duk_hthread *thr, duk_errcode_t code) { + duk_err_create_and_throw(thr, code); +} + +#endif /* DUK_USE_VERBOSE_ERRORS */ + +/* + * Error throwing helpers + */ + +#if defined(DUK_USE_VERBOSE_ERRORS) +#if defined(DUK_USE_PARANOID_ERRORS) +DUK_INTERNAL void duk_err_require_type_index(duk_hthread *thr, const char *filename, duk_int_t linenumber, duk_idx_t index, const char *expect_name) { + DUK_ERROR_RAW_FMT3(thr, filename, linenumber, DUK_ERR_TYPE_ERROR, "%s required, found %s (stack index %ld)", + expect_name, duk_get_type_name((duk_context *) thr, index), (long) index); +} +#else +DUK_INTERNAL void duk_err_require_type_index(duk_hthread *thr, const char *filename, duk_int_t linenumber, duk_idx_t index, const char *expect_name) { + DUK_ERROR_RAW_FMT3(thr, filename, linenumber, DUK_ERR_TYPE_ERROR, "%s required, found %s (stack index %ld)", + expect_name, duk_push_string_readable((duk_context *) thr, index), (long) index); +} +#endif +DUK_INTERNAL void duk_err_range(duk_hthread *thr, const char *filename, duk_int_t linenumber, const char *message) { + DUK_ERROR_RAW(thr, filename, linenumber, DUK_ERR_RANGE_ERROR, message); +} +DUK_INTERNAL void duk_err_api_index(duk_hthread *thr, const char *filename, duk_int_t linenumber, duk_idx_t index) { + DUK_ERROR_RAW_FMT1(thr, filename, linenumber, DUK_ERR_API_ERROR, "invalid stack index %ld", (long) (index)); +} +DUK_INTERNAL void duk_err_api(duk_hthread *thr, const char *filename, duk_int_t linenumber, const char *message) { + DUK_ERROR_RAW(thr, filename, linenumber, DUK_ERR_API_ERROR, message); +} +DUK_INTERNAL void duk_err_unimplemented_defmsg(duk_hthread *thr, const char *filename, duk_int_t linenumber) { + DUK_ERROR_RAW(thr, filename, linenumber, DUK_ERR_UNIMPLEMENTED_ERROR, DUK_STR_UNIMPLEMENTED); +} +#ifndef DUK_USE_BYTECODE_DUMP_SUPPORT +DUK_INTERNAL void duk_err_unsupported_defmsg(duk_hthread *thr, const char *filename, duk_int_t linenumber) { + DUK_ERROR_RAW(thr, filename, linenumber, DUK_ERR_UNSUPPORTED_ERROR, DUK_STR_UNSUPPORTED); +} +#endif +DUK_INTERNAL void duk_err_internal_defmsg(duk_hthread *thr, const char *filename, duk_int_t linenumber) { + DUK_ERROR_RAW(thr, filename, linenumber, DUK_ERR_INTERNAL_ERROR, DUK_STR_INTERNAL_ERROR); +} +DUK_INTERNAL void duk_err_internal(duk_hthread *thr, const char *filename, duk_int_t linenumber, const char *message) { + DUK_ERROR_RAW(thr, filename, linenumber, DUK_ERR_INTERNAL_ERROR, message); +} +DUK_INTERNAL void duk_err_alloc(duk_hthread *thr, const char *filename, duk_int_t linenumber, const char *message) { + DUK_ERROR_RAW(thr, filename, linenumber, DUK_ERR_ALLOC_ERROR, message); +} +#else +/* The file/line arguments are NULL and 0, they're ignored by DUK_ERROR_RAW() + * when non-verbose errors are used. + */ +DUK_INTERNAL void duk_err_type(duk_hthread *thr) { + DUK_ERROR_RAW(thr, NULL, 0, DUK_ERR_TYPE_ERROR, NULL); +} +DUK_INTERNAL void duk_err_api(duk_hthread *thr) { + DUK_ERROR_RAW(thr, NULL, 0, DUK_ERR_API_ERROR, NULL); +} +DUK_INTERNAL void duk_err_range(duk_hthread *thr) { + DUK_ERROR_RAW(thr, NULL, 0, DUK_ERR_RANGE_ERROR, NULL); +} +DUK_INTERNAL void duk_err_syntax(duk_hthread *thr) { + DUK_ERROR_RAW(thr, NULL, 0, DUK_ERR_SYNTAX_ERROR, NULL); +} +DUK_INTERNAL void duk_err_unimplemented(duk_hthread *thr) { + DUK_ERROR_RAW(thr, NULL, 0, DUK_ERR_UNIMPLEMENTED_ERROR, NULL); +} +DUK_INTERNAL void duk_err_unsupported(duk_hthread *thr) { + DUK_ERROR_RAW(thr, NULL, 0, DUK_ERR_UNSUPPORTED_ERROR, NULL); +} +DUK_INTERNAL void duk_err_internal(duk_hthread *thr) { + DUK_ERROR_RAW(thr, NULL, 0, DUK_ERR_INTERNAL_ERROR, NULL); +} +DUK_INTERNAL void duk_err_alloc(duk_hthread *thr) { + DUK_ERROR_RAW(thr, NULL, thr, DUK_ERR_ALLOC_ERROR, NULL); +} +#endif + +/* + * Default fatal error handler + */ + +DUK_INTERNAL void duk_default_fatal_handler(duk_context *ctx, duk_errcode_t code, const char *msg) { + DUK_UNREF(ctx); +#if defined(DUK_USE_FILE_IO) + DUK_FPRINTF(DUK_STDERR, "FATAL %ld: %s\n", (long) code, (const char *) (msg ? msg : "null")); + DUK_FFLUSH(DUK_STDERR); +#else + /* omit print */ +#endif + DUK_D(DUK_DPRINT("default fatal handler called, code %ld -> calling DUK_PANIC()", (long) code)); + DUK_PANIC(code, msg); + DUK_UNREACHABLE(); +} + +/* + * Default panic handler + */ + +#if !defined(DUK_USE_PANIC_HANDLER) +DUK_INTERNAL void duk_default_panic_handler(duk_errcode_t code, const char *msg) { +#if defined(DUK_USE_FILE_IO) + DUK_FPRINTF(DUK_STDERR, "PANIC %ld: %s (" +#if defined(DUK_USE_PANIC_ABORT) + "calling abort" +#elif defined(DUK_USE_PANIC_EXIT) + "calling exit" +#elif defined(DUK_USE_PANIC_SEGFAULT) + "segfaulting on purpose" +#else +#error no DUK_USE_PANIC_xxx macro defined +#endif + ")\n", (long) code, (const char *) (msg ? msg : "null")); + DUK_FFLUSH(DUK_STDERR); +#else + /* omit print */ + DUK_UNREF(code); + DUK_UNREF(msg); +#endif + +#if defined(DUK_USE_PANIC_ABORT) + DUK_ABORT(); +#elif defined(DUK_USE_PANIC_EXIT) + DUK_EXIT(-1); +#elif defined(DUK_USE_PANIC_SEGFAULT) + /* exit() afterwards to satisfy "noreturn" */ + DUK_CAUSE_SEGFAULT(); /* SCANBUILD: "Dereference of null pointer", normal */ + DUK_EXIT(-1); +#else +#error no DUK_USE_PANIC_xxx macro defined +#endif + + DUK_UNREACHABLE(); +} +#endif /* !DUK_USE_PANIC_HANDLER */ + +#undef DUK__ERRFMT_BUFSIZE +#line 1 "duk_unicode_support.c" +/* + * Various Unicode help functions for character classification predicates, + * case conversion, decoding, etc. + */ + +/* include removed: duk_internal.h */ + +/* + * Fast path tables + */ + +#if defined(DUK_USE_IDCHAR_FASTPATH) +DUK_INTERNAL const duk_int8_t duk_is_idchar_tab[128] = { + /* 0: not IdentifierStart or IdentifierPart + * 1: IdentifierStart and IdentifierPart + * -1: IdentifierPart only + */ + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x00...0x0f */ + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x10...0x1f */ + 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x20...0x2f */ + -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 0, 0, 0, 0, 0, 0, /* 0x30...0x3f */ + 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, /* 0x40...0x4f */ + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 1, /* 0x50...0x5f */ + 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, /* 0x60...0x6f */ + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0 /* 0x70...0x7f */ +}; +#endif + +/* + * XUTF-8 and CESU-8 encoding/decoding + */ + +DUK_INTERNAL duk_small_int_t duk_unicode_get_xutf8_length(duk_ucodepoint_t cp) { + duk_uint_fast32_t x = (duk_uint_fast32_t) cp; + if (x < 0x80UL) { + /* 7 bits */ + return 1; + } else if (x < 0x800UL) { + /* 11 bits */ + return 2; + } else if (x < 0x10000UL) { + /* 16 bits */ + return 3; + } else if (x < 0x200000UL) { + /* 21 bits */ + return 4; + } else if (x < 0x4000000UL) { + /* 26 bits */ + return 5; + } else if (x < (duk_ucodepoint_t) 0x80000000UL) { + /* 31 bits */ + return 6; + } else { + /* 36 bits */ + return 7; + } +} + +#if defined(DUK_USE_ASSERTIONS) +DUK_INTERNAL duk_small_int_t duk_unicode_get_cesu8_length(duk_ucodepoint_t cp) { + duk_uint_fast32_t x = (duk_uint_fast32_t) cp; + if (x < 0x80UL) { + /* 7 bits */ + return 1; + } else if (x < 0x800UL) { + /* 11 bits */ + return 2; + } else if (x < 0x10000UL) { + /* 16 bits */ + return 3; + } else { + /* Encoded as surrogate pair, each encoding to 3 bytes for + * 6 bytes total. Codepoints above U+10FFFF encode as 6 bytes + * too, see duk_unicode_encode_cesu8(). + */ + return 3 + 3; + } +} +#endif /* DUK_USE_ASSERTIONS */ + +DUK_INTERNAL const duk_uint8_t duk_unicode_xutf8_markers[7] = { + 0x00, 0xc0, 0xe0, 0xf0, 0xf8, 0xfc, 0xfe +}; + +/* Encode to extended UTF-8; 'out' must have space for at least + * DUK_UNICODE_MAX_XUTF8_LENGTH bytes. Allows encoding of any + * 32-bit (unsigned) codepoint. + */ +DUK_INTERNAL duk_small_int_t duk_unicode_encode_xutf8(duk_ucodepoint_t cp, duk_uint8_t *out) { + duk_uint_fast32_t x = (duk_uint_fast32_t) cp; + duk_small_int_t len; + duk_uint8_t marker; + duk_small_int_t i; + + len = duk_unicode_get_xutf8_length(cp); + DUK_ASSERT(len > 0); + + marker = duk_unicode_xutf8_markers[len - 1]; /* 64-bit OK because always >= 0 */ + + i = len; + DUK_ASSERT(i > 0); + do { + i--; + if (i > 0) { + out[i] = (duk_uint8_t) (0x80 + (x & 0x3f)); + x >>= 6; + } else { + /* Note: masking of 'x' is not necessary because of + * range check and shifting -> no bits overlapping + * the marker should be set. + */ + out[0] = (duk_uint8_t) (marker + x); + } + } while (i > 0); + + return len; +} + +/* Encode to CESU-8; 'out' must have space for at least + * DUK_UNICODE_MAX_CESU8_LENGTH bytes; codepoints above U+10FFFF + * will encode to garbage but won't overwrite the output buffer. + */ +DUK_INTERNAL duk_small_int_t duk_unicode_encode_cesu8(duk_ucodepoint_t cp, duk_uint8_t *out) { + duk_uint_fast32_t x = (duk_uint_fast32_t) cp; + duk_small_int_t len; + + if (x < 0x80UL) { + out[0] = (duk_uint8_t) x; + len = 1; + } else if (x < 0x800UL) { + out[0] = (duk_uint8_t) (0xc0 + ((x >> 6) & 0x1f)); + out[1] = (duk_uint8_t) (0x80 + (x & 0x3f)); + len = 2; + } else if (x < 0x10000UL) { + /* surrogate pairs get encoded here */ + out[0] = (duk_uint8_t) (0xe0 + ((x >> 12) & 0x0f)); + out[1] = (duk_uint8_t) (0x80 + ((x >> 6) & 0x3f)); + out[2] = (duk_uint8_t) (0x80 + (x & 0x3f)); + len = 3; + } else { + /* + * Unicode codepoints above U+FFFF are encoded as surrogate + * pairs here. This ensures that all CESU-8 codepoints are + * 16-bit values as expected in Ecmascript. The surrogate + * pairs always get a 3-byte encoding (each) in CESU-8. + * See: http://en.wikipedia.org/wiki/Surrogate_pair + * + * 20-bit codepoint, 10 bits (A and B) per surrogate pair: + * + * x = 0b00000000 0000AAAA AAAAAABB BBBBBBBB + * sp1 = 0b110110AA AAAAAAAA (0xd800 + ((x >> 10) & 0x3ff)) + * sp2 = 0b110111BB BBBBBBBB (0xdc00 + (x & 0x3ff)) + * + * Encoded into CESU-8: + * + * sp1 -> 0b11101101 (0xe0 + ((sp1 >> 12) & 0x0f)) + * -> 0b1010AAAA (0x80 + ((sp1 >> 6) & 0x3f)) + * -> 0b10AAAAAA (0x80 + (sp1 & 0x3f)) + * sp2 -> 0b11101101 (0xe0 + ((sp2 >> 12) & 0x0f)) + * -> 0b1011BBBB (0x80 + ((sp2 >> 6) & 0x3f)) + * -> 0b10BBBBBB (0x80 + (sp2 & 0x3f)) + * + * Note that 0x10000 must be subtracted first. The code below + * avoids the sp1, sp2 temporaries which saves around 20 bytes + * of code. + */ + + x -= 0x10000UL; + + out[0] = (duk_uint8_t) (0xed); + out[1] = (duk_uint8_t) (0xa0 + ((x >> 16) & 0x0f)); + out[2] = (duk_uint8_t) (0x80 + ((x >> 10) & 0x3f)); + out[3] = (duk_uint8_t) (0xed); + out[4] = (duk_uint8_t) (0xb0 + ((x >> 6) & 0x0f)); + out[5] = (duk_uint8_t) (0x80 + (x & 0x3f)); + len = 6; + } + + return len; +} + +/* Decode helper. Return zero on error. */ +DUK_INTERNAL duk_small_int_t duk_unicode_decode_xutf8(duk_hthread *thr, const duk_uint8_t **ptr, const duk_uint8_t *ptr_start, const duk_uint8_t *ptr_end, duk_ucodepoint_t *out_cp) { + const duk_uint8_t *p; + duk_uint32_t res; + duk_uint_fast8_t ch; + duk_small_int_t n; + + DUK_UNREF(thr); + + p = *ptr; + if (p < ptr_start || p >= ptr_end) { + goto fail; + } + + /* + * UTF-8 decoder which accepts longer than standard byte sequences. + * This allows full 32-bit code points to be used. + */ + + ch = (duk_uint_fast8_t) (*p++); + if (ch < 0x80) { + /* 0xxx xxxx [7 bits] */ + res = (duk_uint32_t) (ch & 0x7f); + n = 0; + } else if (ch < 0xc0) { + /* 10xx xxxx -> invalid */ + goto fail; + } else if (ch < 0xe0) { + /* 110x xxxx 10xx xxxx [11 bits] */ + res = (duk_uint32_t) (ch & 0x1f); + n = 1; + } else if (ch < 0xf0) { + /* 1110 xxxx 10xx xxxx 10xx xxxx [16 bits] */ + res = (duk_uint32_t) (ch & 0x0f); + n = 2; + } else if (ch < 0xf8) { + /* 1111 0xxx 10xx xxxx 10xx xxxx 10xx xxxx [21 bits] */ + res = (duk_uint32_t) (ch & 0x07); + n = 3; + } else if (ch < 0xfc) { + /* 1111 10xx 10xx xxxx 10xx xxxx 10xx xxxx 10xx xxxx [26 bits] */ + res = (duk_uint32_t) (ch & 0x03); + n = 4; + } else if (ch < 0xfe) { + /* 1111 110x 10xx xxxx 10xx xxxx 10xx xxxx 10xx xxxx 10xx xxxx [31 bits] */ + res = (duk_uint32_t) (ch & 0x01); + n = 5; + } else if (ch < 0xff) { + /* 1111 1110 10xx xxxx 10xx xxxx 10xx xxxx 10xx xxxx 10xx xxxx 10xx xxxx [36 bits] */ + res = (duk_uint32_t) (0); + n = 6; + } else { + /* 8-byte format could be: + * 1111 1111 10xx xxxx 10xx xxxx 10xx xxxx 10xx xxxx 10xx xxxx 10xx xxxx 10xx xxxx [41 bits] + * + * However, this format would not have a zero bit following the + * leading one bits and would not allow 0xFF to be used as an + * "invalid xutf-8" marker for internal keys. Further, 8-byte + * encodings (up to 41 bit code points) are not currently needed. + */ + goto fail; + } + + DUK_ASSERT(p >= ptr_start); /* verified at beginning */ + if (p + n > ptr_end) { + /* check pointer at end */ + goto fail; + } + + while (n > 0) { + DUK_ASSERT(p >= ptr_start && p < ptr_end); + res = res << 6; + res += (duk_uint32_t) ((*p++) & 0x3f); + n--; + } + + *ptr = p; + *out_cp = res; + return 1; + + fail: + return 0; +} + +/* used by e.g. duk_regexp_executor.c, string built-ins */ +DUK_INTERNAL duk_ucodepoint_t duk_unicode_decode_xutf8_checked(duk_hthread *thr, const duk_uint8_t **ptr, const duk_uint8_t *ptr_start, const duk_uint8_t *ptr_end) { + duk_ucodepoint_t cp; + + if (duk_unicode_decode_xutf8(thr, ptr, ptr_start, ptr_end, &cp)) { + return cp; + } + DUK_ERROR_INTERNAL(thr, "utf-8 decode failed"); /* XXX: 'internal error' is a bit of a misnomer */ + DUK_UNREACHABLE(); + return 0; +} + +/* Compute (extended) utf-8 length without codepoint encoding validation, + * used for string interning. + * + * NOTE: This algorithm is performance critical, more so than string hashing + * in some cases. It is needed when interning a string and needs to scan + * every byte of the string with no skipping. Having an ASCII fast path + * is useful if possible in the algorithm. The current algorithms were + * chosen from several variants, based on x64 gcc -O2 testing. See: + * https://github.com/svaarala/duktape/pull/422 + * + * NOTE: must match src/dukutil.py:duk_unicode_unvalidated_utf8_length(). + */ + +#if defined(DUK_USE_PREFER_SIZE) +/* Small variant; roughly 150 bytes smaller than the fast variant. */ +DUK_INTERNAL duk_size_t duk_unicode_unvalidated_utf8_length(const duk_uint8_t *data, duk_size_t blen) { + const duk_uint8_t *p; + const duk_uint8_t *p_end; + duk_size_t ncont; + duk_size_t clen; + + p = data; + p_end = data + blen; + ncont = 0; + while (p != p_end) { + duk_uint8_t x; + x = *p++; + if (DUK_UNLIKELY(x >= 0x80 && x <= 0xbf)) { + ncont++; + } + } + + DUK_ASSERT(ncont <= blen); + clen = blen - ncont; + DUK_ASSERT(clen <= blen); + return clen; +} +#else /* DUK_USE_PREFER_SIZE */ +/* This seems like a good overall approach. Fast path for ASCII in 4 byte + * blocks. + */ +DUK_INTERNAL duk_size_t duk_unicode_unvalidated_utf8_length(const duk_uint8_t *data, duk_size_t blen) { + const duk_uint8_t *p; + const duk_uint8_t *p_end; + const duk_uint32_t *p32_end; + const duk_uint32_t *p32; + duk_size_t ncont; + duk_size_t clen; + + ncont = 0; /* number of continuation (non-initial) bytes in [0x80,0xbf] */ + p = data; + p_end = data + blen; + if (blen < 16) { + goto skip_fastpath; + } + + /* Align 'p' to 4; the input data may have arbitrary alignment. + * End of string check not needed because blen >= 16. + */ + while (((duk_size_t) (const void *) p) & 0x03U) { + duk_uint8_t x; + x = *p++; + if (DUK_UNLIKELY(x >= 0x80 && x <= 0xbf)) { + ncont++; + } + } + + /* Full, aligned 4-byte reads. */ + p32_end = (const duk_uint32_t *) (const void *) (p + ((duk_size_t) (p_end - p) & (duk_size_t) (~0x03))); + p32 = (const duk_uint32_t *) (const void *) p; + while (p32 != (const duk_uint32_t *) p32_end) { + duk_uint32_t x; + x = *p32++; + if (DUK_LIKELY((x & 0x80808080UL) == 0)) { + ; /* ASCII fast path */ + } else { + /* Flip highest bit of each byte which changes + * the bit pattern 10xxxxxx into 00xxxxxx which + * allows an easy bit mask test. + */ + x ^= 0x80808080UL; + if (DUK_UNLIKELY(!(x & 0xc0000000UL))) { + ncont++; + } + if (DUK_UNLIKELY(!(x & 0x00c00000UL))) { + ncont++; + } + if (DUK_UNLIKELY(!(x & 0x0000c000UL))) { + ncont++; + } + if (DUK_UNLIKELY(!(x & 0x000000c0UL))) { + ncont++; + } + } + } + p = (const duk_uint8_t *) p32; + /* Fall through to handle the rest. */ + + skip_fastpath: + while (p != p_end) { + duk_uint8_t x; + x = *p++; + if (DUK_UNLIKELY(x >= 0x80 && x <= 0xbf)) { + ncont++; + } + } + + DUK_ASSERT(ncont <= blen); + clen = blen - ncont; + DUK_ASSERT(clen <= blen); + return clen; +} +#endif /* DUK_USE_PREFER_SIZE */ + +/* + * Unicode range matcher + * + * Matches a codepoint against a packed bitstream of character ranges. + * Used for slow path Unicode matching. + */ + +/* Must match src/extract_chars.py, generate_match_table3(). */ +DUK_LOCAL duk_uint32_t duk__uni_decode_value(duk_bitdecoder_ctx *bd_ctx) { + duk_uint32_t t; + + t = (duk_uint32_t) duk_bd_decode(bd_ctx, 4); + if (t <= 0x0eU) { + return t; + } + t = (duk_uint32_t) duk_bd_decode(bd_ctx, 8); + if (t <= 0xfdU) { + return t + 0x0f; + } + if (t == 0xfeU) { + t = (duk_uint32_t) duk_bd_decode(bd_ctx, 12); + return t + 0x0fU + 0xfeU; + } else { + t = (duk_uint32_t) duk_bd_decode(bd_ctx, 24); + return t + 0x0fU + 0xfeU + 0x1000UL; + } +} + +DUK_LOCAL duk_small_int_t duk__uni_range_match(const duk_uint8_t *unitab, duk_size_t unilen, duk_codepoint_t cp) { + duk_bitdecoder_ctx bd_ctx; + duk_codepoint_t prev_re; + + DUK_MEMZERO(&bd_ctx, sizeof(bd_ctx)); + bd_ctx.data = (const duk_uint8_t *) unitab; + bd_ctx.length = (duk_size_t) unilen; + + prev_re = 0; + for (;;) { + duk_codepoint_t r1, r2; + r1 = (duk_codepoint_t) duk__uni_decode_value(&bd_ctx); + if (r1 == 0) { + break; + } + r2 = (duk_codepoint_t) duk__uni_decode_value(&bd_ctx); + + r1 = prev_re + r1; + r2 = r1 + r2; + prev_re = r2; + + /* [r1,r2] is the range */ + + DUK_DDD(DUK_DDDPRINT("duk__uni_range_match: cp=%06lx range=[0x%06lx,0x%06lx]", + (unsigned long) cp, (unsigned long) r1, (unsigned long) r2)); + if (cp >= r1 && cp <= r2) { + return 1; + } + } + + return 0; +} + +/* + * "WhiteSpace" production check. + */ + +DUK_INTERNAL duk_small_int_t duk_unicode_is_whitespace(duk_codepoint_t cp) { + /* + * E5 Section 7.2 specifies six characters specifically as + * white space: + * + * 0009;;Cc;0;S;;;;;N;CHARACTER TABULATION;;;; + * 000B;;Cc;0;S;;;;;N;LINE TABULATION;;;; + * 000C;;Cc;0;WS;;;;;N;FORM FEED (FF);;;; + * 0020;SPACE;Zs;0;WS;;;;;N;;;;; + * 00A0;NO-BREAK SPACE;Zs;0;CS; 0020;;;;N;NON-BREAKING SPACE;;;; + * FEFF;ZERO WIDTH NO-BREAK SPACE;Cf;0;BN;;;;;N;BYTE ORDER MARK;;;; + * + * It also specifies any Unicode category 'Zs' characters as white + * space. These can be extracted with the "src/extract_chars.py" script. + * Current result: + * + * RAW OUTPUT: + * =========== + * 0020;SPACE;Zs;0;WS;;;;;N;;;;; + * 00A0;NO-BREAK SPACE;Zs;0;CS; 0020;;;;N;NON-BREAKING SPACE;;;; + * 1680;OGHAM SPACE MARK;Zs;0;WS;;;;;N;;;;; + * 180E;MONGOLIAN VOWEL SEPARATOR;Zs;0;WS;;;;;N;;;;; + * 2000;EN QUAD;Zs;0;WS;2002;;;;N;;;;; + * 2001;EM QUAD;Zs;0;WS;2003;;;;N;;;;; + * 2002;EN SPACE;Zs;0;WS; 0020;;;;N;;;;; + * 2003;EM SPACE;Zs;0;WS; 0020;;;;N;;;;; + * 2004;THREE-PER-EM SPACE;Zs;0;WS; 0020;;;;N;;;;; + * 2005;FOUR-PER-EM SPACE;Zs;0;WS; 0020;;;;N;;;;; + * 2006;SIX-PER-EM SPACE;Zs;0;WS; 0020;;;;N;;;;; + * 2007;FIGURE SPACE;Zs;0;WS; 0020;;;;N;;;;; + * 2008;PUNCTUATION SPACE;Zs;0;WS; 0020;;;;N;;;;; + * 2009;THIN SPACE;Zs;0;WS; 0020;;;;N;;;;; + * 200A;HAIR SPACE;Zs;0;WS; 0020;;;;N;;;;; + * 202F;NARROW NO-BREAK SPACE;Zs;0;CS; 0020;;;;N;;;;; + * 205F;MEDIUM MATHEMATICAL SPACE;Zs;0;WS; 0020;;;;N;;;;; + * 3000;IDEOGRAPHIC SPACE;Zs;0;WS; 0020;;;;N;;;;; + * + * RANGES: + * ======= + * 0x0020 + * 0x00a0 + * 0x1680 + * 0x180e + * 0x2000 ... 0x200a + * 0x202f + * 0x205f + * 0x3000 + * + * A manual decoder (below) is probably most compact for this. + */ + + duk_uint_fast8_t lo; + duk_uint_fast32_t hi; + + /* cp == -1 (EOF) never matches and causes return value 0 */ + + lo = (duk_uint_fast8_t) (cp & 0xff); + hi = (duk_uint_fast32_t) (cp >> 8); /* does not fit into an uchar */ + + if (hi == 0x0000UL) { + if (lo == 0x09U || lo == 0x0bU || lo == 0x0cU || + lo == 0x20U || lo == 0xa0U) { + return 1; + } + } else if (hi == 0x0020UL) { + if (lo <= 0x0aU || lo == 0x2fU || lo == 0x5fU) { + return 1; + } + } else if (cp == 0x1680L || cp == 0x180eL || cp == 0x3000L || + cp == 0xfeffL) { + return 1; + } + + return 0; +} + +/* + * "LineTerminator" production check. + */ + +DUK_INTERNAL duk_small_int_t duk_unicode_is_line_terminator(duk_codepoint_t cp) { + /* + * E5 Section 7.3 + * + * A LineTerminatorSequence essentially merges sequences + * into a single line terminator. This must be handled by the caller. + */ + + if (cp == 0x000aL || cp == 0x000dL || cp == 0x2028L || + cp == 0x2029L) { + return 1; + } + + return 0; +} + +/* + * "IdentifierStart" production check. + */ + +DUK_INTERNAL duk_small_int_t duk_unicode_is_identifier_start(duk_codepoint_t cp) { + /* + * E5 Section 7.6: + * + * IdentifierStart: + * UnicodeLetter + * $ + * _ + * \ UnicodeEscapeSequence + * + * IdentifierStart production has one multi-character production: + * + * \ UnicodeEscapeSequence + * + * The '\' character is -not- matched by this function. Rather, the caller + * should decode the escape and then call this function to check whether the + * decoded character is acceptable (see discussion in E5 Section 7.6). + * + * The "UnicodeLetter" alternative of the production allows letters + * from various Unicode categories. These can be extracted with the + * "src/extract_chars.py" script. + * + * Because the result has hundreds of Unicode codepoint ranges, matching + * for any values >= 0x80 are done using a very slow range-by-range scan + * and a packed range format. + * + * The ASCII portion (codepoints 0x00 ... 0x7f) is fast-pathed below because + * it matters the most. The ASCII related ranges of IdentifierStart are: + * + * 0x0041 ... 0x005a ['A' ... 'Z'] + * 0x0061 ... 0x007a ['a' ... 'z'] + * 0x0024 ['$'] + * 0x005f ['_'] + */ + + /* ASCII (and EOF) fast path -- quick accept and reject */ + if (cp <= 0x7fL) { +#if defined(DUK_USE_IDCHAR_FASTPATH) + return (cp >= 0) && (duk_is_idchar_tab[cp] > 0); +#else + if ((cp >= 'a' && cp <= 'z') || + (cp >= 'A' && cp <= 'Z') || + cp == '_' || cp == '$') { + return 1; + } + return 0; +#endif + } + + /* Non-ASCII slow path (range-by-range linear comparison), very slow */ + +#ifdef DUK_USE_SOURCE_NONBMP + if (duk__uni_range_match(duk_unicode_ids_noa, + (duk_size_t) sizeof(duk_unicode_ids_noa), + (duk_codepoint_t) cp)) { + return 1; + } + return 0; +#else + if (cp < 0x10000L) { + if (duk__uni_range_match(duk_unicode_ids_noabmp, + sizeof(duk_unicode_ids_noabmp), + (duk_codepoint_t) cp)) { + return 1; + } + return 0; + } else { + /* without explicit non-BMP support, assume non-BMP characters + * are always accepted as identifier characters. + */ + return 1; + } +#endif +} + +/* + * "IdentifierPart" production check. + */ + +DUK_INTERNAL duk_small_int_t duk_unicode_is_identifier_part(duk_codepoint_t cp) { + /* + * E5 Section 7.6: + * + * IdentifierPart: + * IdentifierStart + * UnicodeCombiningMark + * UnicodeDigit + * UnicodeConnectorPunctuation + * [U+200C] + * [U+200D] + * + * IdentifierPart production has one multi-character production + * as part of its IdentifierStart alternative. The '\' character + * of an escape sequence is not matched here, see discussion in + * duk_unicode_is_identifier_start(). + * + * To match non-ASCII characters (codepoints >= 0x80), a very slow + * linear range-by-range scan is used. The codepoint is first compared + * to the IdentifierStart ranges, and if it doesn't match, then to a + * set consisting of code points in IdentifierPart but not in + * IdentifierStart. This is done to keep the unicode range data small, + * at the expense of speed. + * + * The ASCII fast path consists of: + * + * 0x0030 ... 0x0039 ['0' ... '9', UnicodeDigit] + * 0x0041 ... 0x005a ['A' ... 'Z', IdentifierStart] + * 0x0061 ... 0x007a ['a' ... 'z', IdentifierStart] + * 0x0024 ['$', IdentifierStart] + * 0x005f ['_', IdentifierStart and + * UnicodeConnectorPunctuation] + * + * UnicodeCombiningMark has no code points <= 0x7f. + * + * The matching code reuses the "identifier start" tables, and then + * consults a separate range set for characters in "identifier part" + * but not in "identifier start". These can be extracted with the + * "src/extract_chars.py" script. + * + * UnicodeCombiningMark -> categories Mn, Mc + * UnicodeDigit -> categories Nd + * UnicodeConnectorPunctuation -> categories Pc + */ + + /* ASCII (and EOF) fast path -- quick accept and reject */ + if (cp <= 0x7fL) { +#if defined(DUK_USE_IDCHAR_FASTPATH) + return (cp >= 0) && (duk_is_idchar_tab[cp] != 0); +#else + if ((cp >= 'a' && cp <= 'z') || + (cp >= 'A' && cp <= 'Z') || + (cp >= '0' && cp <= '9') || + cp == '_' || cp == '$') { + return 1; + } + return 0; +#endif + } + + /* Non-ASCII slow path (range-by-range linear comparison), very slow */ + +#ifdef DUK_USE_SOURCE_NONBMP + if (duk__uni_range_match(duk_unicode_ids_noa, + sizeof(duk_unicode_ids_noa), + (duk_codepoint_t) cp) || + duk__uni_range_match(duk_unicode_idp_m_ids_noa, + sizeof(duk_unicode_idp_m_ids_noa), + (duk_codepoint_t) cp)) { + return 1; + } + return 0; +#else + if (cp < 0x10000L) { + if (duk__uni_range_match(duk_unicode_ids_noabmp, + sizeof(duk_unicode_ids_noabmp), + (duk_codepoint_t) cp) || + duk__uni_range_match(duk_unicode_idp_m_ids_noabmp, + sizeof(duk_unicode_idp_m_ids_noabmp), + (duk_codepoint_t) cp)) { + return 1; + } + return 0; + } else { + /* without explicit non-BMP support, assume non-BMP characters + * are always accepted as identifier characters. + */ + return 1; + } +#endif +} + +/* + * Unicode letter check. + */ + +DUK_INTERNAL duk_small_int_t duk_unicode_is_letter(duk_codepoint_t cp) { + /* + * Unicode letter is now taken to be the categories: + * + * Lu, Ll, Lt, Lm, Lo + * + * (Not sure if this is exactly correct.) + * + * The ASCII fast path consists of: + * + * 0x0041 ... 0x005a ['A' ... 'Z'] + * 0x0061 ... 0x007a ['a' ... 'z'] + */ + + /* ASCII (and EOF) fast path -- quick accept and reject */ + if (cp <= 0x7fL) { + if ((cp >= 'a' && cp <= 'z') || + (cp >= 'A' && cp <= 'Z')) { + return 1; + } + return 0; + } + + /* Non-ASCII slow path (range-by-range linear comparison), very slow */ + +#ifdef DUK_USE_SOURCE_NONBMP + if (duk__uni_range_match(duk_unicode_ids_noa, + sizeof(duk_unicode_ids_noa), + (duk_codepoint_t) cp) && + !duk__uni_range_match(duk_unicode_ids_m_let_noa, + sizeof(duk_unicode_ids_m_let_noa), + (duk_codepoint_t) cp)) { + return 1; + } + return 0; +#else + if (cp < 0x10000L) { + if (duk__uni_range_match(duk_unicode_ids_noabmp, + sizeof(duk_unicode_ids_noabmp), + (duk_codepoint_t) cp) && + !duk__uni_range_match(duk_unicode_ids_m_let_noabmp, + sizeof(duk_unicode_ids_m_let_noabmp), + (duk_codepoint_t) cp)) { + return 1; + } + return 0; + } else { + /* without explicit non-BMP support, assume non-BMP characters + * are always accepted as letters. + */ + return 1; + } +#endif +} + +/* + * Complex case conversion helper which decodes a bit-packed conversion + * control stream generated by unicode/extract_caseconv.py. The conversion + * is very slow because it runs through the conversion data in a linear + * fashion to save space (which is why ASCII characters have a special + * fast path before arriving here). + * + * The particular bit counts etc have been determined experimentally to + * be small but still sufficient, and must match the Python script + * (src/extract_caseconv.py). + * + * The return value is the case converted codepoint or -1 if the conversion + * results in multiple characters (this is useful for regexp Canonicalization + * operation). If 'buf' is not NULL, the result codepoint(s) are also + * appended to the hbuffer. + * + * Context and locale specific rules must be checked before consulting + * this function. + */ + +DUK_LOCAL +duk_codepoint_t duk__slow_case_conversion(duk_hthread *thr, + duk_bufwriter_ctx *bw, + duk_codepoint_t cp, + duk_bitdecoder_ctx *bd_ctx) { + duk_small_int_t skip = 0; + duk_small_int_t n; + duk_small_int_t t; + duk_small_int_t count; + duk_codepoint_t tmp_cp; + duk_codepoint_t start_i; + duk_codepoint_t start_o; + + DUK_UNREF(thr); + DUK_ASSERT(bd_ctx != NULL); + + DUK_DDD(DUK_DDDPRINT("slow case conversion for codepoint: %ld", (long) cp)); + + /* range conversion with a "skip" */ + DUK_DDD(DUK_DDDPRINT("checking ranges")); + for (;;) { + skip++; + n = (duk_small_int_t) duk_bd_decode(bd_ctx, 6); + if (n == 0x3f) { + /* end marker */ + break; + } + DUK_DDD(DUK_DDDPRINT("skip=%ld, n=%ld", (long) skip, (long) n)); + + while (n--) { + start_i = (duk_codepoint_t) duk_bd_decode(bd_ctx, 16); + start_o = (duk_codepoint_t) duk_bd_decode(bd_ctx, 16); + count = (duk_small_int_t) duk_bd_decode(bd_ctx, 7); + DUK_DDD(DUK_DDDPRINT("range: start_i=%ld, start_o=%ld, count=%ld, skip=%ld", + (long) start_i, (long) start_o, (long) count, (long) skip)); + + if (cp >= start_i) { + tmp_cp = cp - start_i; /* always >= 0 */ + if (tmp_cp < (duk_codepoint_t) count * (duk_codepoint_t) skip && + (tmp_cp % (duk_codepoint_t) skip) == 0) { + DUK_DDD(DUK_DDDPRINT("range matches input codepoint")); + cp = start_o + tmp_cp; + goto single; + } + } + } + } + + /* 1:1 conversion */ + n = (duk_small_int_t) duk_bd_decode(bd_ctx, 6); + DUK_DDD(DUK_DDDPRINT("checking 1:1 conversions (count %ld)", (long) n)); + while (n--) { + start_i = (duk_codepoint_t) duk_bd_decode(bd_ctx, 16); + start_o = (duk_codepoint_t) duk_bd_decode(bd_ctx, 16); + DUK_DDD(DUK_DDDPRINT("1:1 conversion %ld -> %ld", (long) start_i, (long) start_o)); + if (cp == start_i) { + DUK_DDD(DUK_DDDPRINT("1:1 matches input codepoint")); + cp = start_o; + goto single; + } + } + + /* complex, multicharacter conversion */ + n = (duk_small_int_t) duk_bd_decode(bd_ctx, 7); + DUK_DDD(DUK_DDDPRINT("checking 1:n conversions (count %ld)", (long) n)); + while (n--) { + start_i = (duk_codepoint_t) duk_bd_decode(bd_ctx, 16); + t = (duk_small_int_t) duk_bd_decode(bd_ctx, 2); + DUK_DDD(DUK_DDDPRINT("1:n conversion %ld -> %ld chars", (long) start_i, (long) t)); + if (cp == start_i) { + DUK_DDD(DUK_DDDPRINT("1:n matches input codepoint")); + if (bw != NULL) { + while (t--) { + tmp_cp = (duk_codepoint_t) duk_bd_decode(bd_ctx, 16); + DUK_BW_WRITE_RAW_XUTF8(thr, bw, (duk_ucodepoint_t) tmp_cp); + } + } + return -1; + } else { + while (t--) { + (void) duk_bd_decode(bd_ctx, 16); + } + } + } + + /* default: no change */ + DUK_DDD(DUK_DDDPRINT("no rule matches, output is same as input")); + /* fall through */ + + single: + if (bw != NULL) { + DUK_BW_WRITE_RAW_XUTF8(thr, bw, (duk_ucodepoint_t) cp); + } + return cp; +} + +/* + * Case conversion helper, with context/local sensitivity. + * For proper case conversion, one needs to know the character + * and the preceding and following characters, as well as + * locale/language. + */ + +/* XXX: add 'language' argument when locale/language sensitive rule + * support added. + */ +DUK_LOCAL +duk_codepoint_t duk__case_transform_helper(duk_hthread *thr, + duk_bufwriter_ctx *bw, + duk_codepoint_t cp, + duk_codepoint_t prev, + duk_codepoint_t next, + duk_bool_t uppercase) { + duk_bitdecoder_ctx bd_ctx; + + /* fast path for ASCII */ + if (cp < 0x80L) { + /* XXX: there are language sensitive rules for the ASCII range. + * If/when language/locale support is implemented, they need to + * be implemented here for the fast path. There are no context + * sensitive rules for ASCII range. + */ + + if (uppercase) { + if (cp >= 'a' && cp <= 'z') { + cp = cp - 'a' + 'A'; + } + } else { + if (cp >= 'A' && cp <= 'Z') { + cp = cp - 'A' + 'a'; + } + } + + if (bw != NULL) { + DUK_BW_WRITE_RAW_U8(thr, bw, (duk_uint8_t) cp); + } + return cp; + } + + /* context and locale specific rules which cannot currently be represented + * in the caseconv bitstream: hardcoded rules in C + */ + if (uppercase) { + /* XXX: turkish / azeri */ + } else { + /* + * Final sigma context specific rule. This is a rather tricky + * rule and this handling is probably not 100% correct now. + * The rule is not locale/language specific so it is supported. + */ + + if (cp == 0x03a3L && /* U+03A3 = GREEK CAPITAL LETTER SIGMA */ + duk_unicode_is_letter(prev) && /* prev exists and is not a letter */ + !duk_unicode_is_letter(next)) { /* next does not exist or next is not a letter */ + /* Capital sigma occurred at "end of word", lowercase to + * U+03C2 = GREEK SMALL LETTER FINAL SIGMA. Otherwise + * fall through and let the normal rules lowercase it to + * U+03C3 = GREEK SMALL LETTER SIGMA. + */ + cp = 0x03c2L; + goto singlechar; + } + + /* XXX: lithuanian not implemented */ + /* XXX: lithuanian, explicit dot rules */ + /* XXX: turkish / azeri, lowercase rules */ + } + + /* 1:1 or special conversions, but not locale/context specific: script generated rules */ + DUK_MEMZERO(&bd_ctx, sizeof(bd_ctx)); + if (uppercase) { + bd_ctx.data = (const duk_uint8_t *) duk_unicode_caseconv_uc; + bd_ctx.length = (duk_size_t) sizeof(duk_unicode_caseconv_uc); + } else { + bd_ctx.data = (const duk_uint8_t *) duk_unicode_caseconv_lc; + bd_ctx.length = (duk_size_t) sizeof(duk_unicode_caseconv_lc); + } + return duk__slow_case_conversion(thr, bw, cp, &bd_ctx); + + singlechar: + if (bw != NULL) { + DUK_BW_WRITE_RAW_XUTF8(thr, bw, (duk_ucodepoint_t) cp); + } + return cp; + + /* unused now, not needed until Turkish/Azeri */ +#if 0 + nochar: + return -1; +#endif +} + +/* + * Replace valstack top with case converted version. + */ + +DUK_INTERNAL void duk_unicode_case_convert_string(duk_hthread *thr, duk_small_int_t uppercase) { + duk_context *ctx = (duk_context *) thr; + duk_hstring *h_input; + duk_bufwriter_ctx bw_alloc; + duk_bufwriter_ctx *bw; + const duk_uint8_t *p, *p_start, *p_end; + duk_codepoint_t prev, curr, next; + + h_input = duk_require_hstring(ctx, -1); + DUK_ASSERT(h_input != NULL); + + bw = &bw_alloc; + DUK_BW_INIT_PUSHBUF(thr, bw, DUK_HSTRING_GET_BYTELEN(h_input)); + + /* [ ... input buffer ] */ + + p_start = (const duk_uint8_t *) DUK_HSTRING_GET_DATA(h_input); + p_end = p_start + DUK_HSTRING_GET_BYTELEN(h_input); + p = p_start; + + prev = -1; DUK_UNREF(prev); + curr = -1; + next = -1; + for (;;) { + prev = curr; + curr = next; + next = -1; + if (p < p_end) { + next = (int) duk_unicode_decode_xutf8_checked(thr, &p, p_start, p_end); + } else { + /* end of input and last char has been processed */ + if (curr < 0) { + break; + } + } + + /* on first round, skip */ + if (curr >= 0) { + /* XXX: could add a fast path to process chunks of input codepoints, + * but relative benefit would be quite small. + */ + + /* Ensure space for maximum multi-character result; estimate is overkill. */ + DUK_BW_ENSURE(thr, bw, 8 * DUK_UNICODE_MAX_XUTF8_LENGTH); + + duk__case_transform_helper(thr, + bw, + (duk_codepoint_t) curr, + prev, + next, + uppercase); + } + } + + DUK_BW_COMPACT(thr, bw); + duk_to_string(ctx, -1); /* invalidates h_buf pointer */ + duk_remove(ctx, -2); +} + +#ifdef DUK_USE_REGEXP_SUPPORT + +/* + * Canonicalize() abstract operation needed for canonicalization of individual + * codepoints during regexp compilation and execution, see E5 Section 15.10.2.8. + * Note that codepoints are canonicalized one character at a time, so no context + * specific rules can apply. Locale specific rules can apply, though. + */ + +DUK_INTERNAL duk_codepoint_t duk_unicode_re_canonicalize_char(duk_hthread *thr, duk_codepoint_t cp) { +#if defined(DUK_USE_REGEXP_CANON_WORKAROUND) + /* Fast canonicalization lookup at the cost of 128kB footprint. */ + DUK_ASSERT(cp >= 0); + DUK_UNREF(thr); + if (DUK_LIKELY(cp < 0x10000L)) { + return (duk_codepoint_t) duk_unicode_re_canon_lookup[cp]; + } + return cp; +#else /* DUK_USE_REGEXP_CANON_WORKAROUND */ + duk_codepoint_t y; + + y = duk__case_transform_helper(thr, + NULL, /* NULL is allowed, no output */ + cp, /* curr char */ + -1, /* prev char */ + -1, /* next char */ + 1); /* uppercase */ + + if ((y < 0) || (cp >= 0x80 && y < 0x80)) { + /* multiple codepoint conversion or non-ASCII mapped to ASCII + * --> leave as is. + */ + return cp; + } + + return y; +#endif /* DUK_USE_REGEXP_CANON_WORKAROUND */ +} + +/* + * E5 Section 15.10.2.6 "IsWordChar" abstract operation. Assume + * x < 0 for characters read outside the string. + */ + +DUK_INTERNAL duk_small_int_t duk_unicode_re_is_wordchar(duk_codepoint_t x) { + /* + * Note: the description in E5 Section 15.10.2.6 has a typo, it + * contains 'A' twice and lacks 'a'; the intent is [0-9a-zA-Z_]. + */ + if ((x >= '0' && x <= '9') || + (x >= 'a' && x <= 'z') || + (x >= 'A' && x <= 'Z') || + (x == '_')) { + return 1; + } + return 0; +} + +/* + * Regexp range tables + */ + +/* exposed because lexer needs these too */ +DUK_INTERNAL const duk_uint16_t duk_unicode_re_ranges_digit[2] = { + (duk_uint16_t) 0x0030UL, (duk_uint16_t) 0x0039UL, +}; +DUK_INTERNAL const duk_uint16_t duk_unicode_re_ranges_white[22] = { + (duk_uint16_t) 0x0009UL, (duk_uint16_t) 0x000DUL, + (duk_uint16_t) 0x0020UL, (duk_uint16_t) 0x0020UL, + (duk_uint16_t) 0x00A0UL, (duk_uint16_t) 0x00A0UL, + (duk_uint16_t) 0x1680UL, (duk_uint16_t) 0x1680UL, + (duk_uint16_t) 0x180EUL, (duk_uint16_t) 0x180EUL, + (duk_uint16_t) 0x2000UL, (duk_uint16_t) 0x200AUL, + (duk_uint16_t) 0x2028UL, (duk_uint16_t) 0x2029UL, + (duk_uint16_t) 0x202FUL, (duk_uint16_t) 0x202FUL, + (duk_uint16_t) 0x205FUL, (duk_uint16_t) 0x205FUL, + (duk_uint16_t) 0x3000UL, (duk_uint16_t) 0x3000UL, + (duk_uint16_t) 0xFEFFUL, (duk_uint16_t) 0xFEFFUL, +}; +DUK_INTERNAL const duk_uint16_t duk_unicode_re_ranges_wordchar[8] = { + (duk_uint16_t) 0x0030UL, (duk_uint16_t) 0x0039UL, + (duk_uint16_t) 0x0041UL, (duk_uint16_t) 0x005AUL, + (duk_uint16_t) 0x005FUL, (duk_uint16_t) 0x005FUL, + (duk_uint16_t) 0x0061UL, (duk_uint16_t) 0x007AUL, +}; +DUK_INTERNAL const duk_uint16_t duk_unicode_re_ranges_not_digit[4] = { + (duk_uint16_t) 0x0000UL, (duk_uint16_t) 0x002FUL, + (duk_uint16_t) 0x003AUL, (duk_uint16_t) 0xFFFFUL, +}; +DUK_INTERNAL const duk_uint16_t duk_unicode_re_ranges_not_white[24] = { + (duk_uint16_t) 0x0000UL, (duk_uint16_t) 0x0008UL, + (duk_uint16_t) 0x000EUL, (duk_uint16_t) 0x001FUL, + (duk_uint16_t) 0x0021UL, (duk_uint16_t) 0x009FUL, + (duk_uint16_t) 0x00A1UL, (duk_uint16_t) 0x167FUL, + (duk_uint16_t) 0x1681UL, (duk_uint16_t) 0x180DUL, + (duk_uint16_t) 0x180FUL, (duk_uint16_t) 0x1FFFUL, + (duk_uint16_t) 0x200BUL, (duk_uint16_t) 0x2027UL, + (duk_uint16_t) 0x202AUL, (duk_uint16_t) 0x202EUL, + (duk_uint16_t) 0x2030UL, (duk_uint16_t) 0x205EUL, + (duk_uint16_t) 0x2060UL, (duk_uint16_t) 0x2FFFUL, + (duk_uint16_t) 0x3001UL, (duk_uint16_t) 0xFEFEUL, + (duk_uint16_t) 0xFF00UL, (duk_uint16_t) 0xFFFFUL, +}; +DUK_INTERNAL const duk_uint16_t duk_unicode_re_ranges_not_wordchar[10] = { + (duk_uint16_t) 0x0000UL, (duk_uint16_t) 0x002FUL, + (duk_uint16_t) 0x003AUL, (duk_uint16_t) 0x0040UL, + (duk_uint16_t) 0x005BUL, (duk_uint16_t) 0x005EUL, + (duk_uint16_t) 0x0060UL, (duk_uint16_t) 0x0060UL, + (duk_uint16_t) 0x007BUL, (duk_uint16_t) 0xFFFFUL, +}; + +#endif /* DUK_USE_REGEXP_SUPPORT */ +#line 1 "duk_util_misc.c" +/* + * Misc util stuff + */ + +/* include removed: duk_internal.h */ + +/* + * Lowercase digits for radix values 2 to 36. Also doubles as lowercase + * hex nybble table. + */ + +DUK_INTERNAL const duk_uint8_t duk_lc_digits[36] = { + DUK_ASC_0, DUK_ASC_1, DUK_ASC_2, DUK_ASC_3, + DUK_ASC_4, DUK_ASC_5, DUK_ASC_6, DUK_ASC_7, + DUK_ASC_8, DUK_ASC_9, DUK_ASC_LC_A, DUK_ASC_LC_B, + DUK_ASC_LC_C, DUK_ASC_LC_D, DUK_ASC_LC_E, DUK_ASC_LC_F, + DUK_ASC_LC_G, DUK_ASC_LC_H, DUK_ASC_LC_I, DUK_ASC_LC_J, + DUK_ASC_LC_K, DUK_ASC_LC_L, DUK_ASC_LC_M, DUK_ASC_LC_N, + DUK_ASC_LC_O, DUK_ASC_LC_P, DUK_ASC_LC_Q, DUK_ASC_LC_R, + DUK_ASC_LC_S, DUK_ASC_LC_T, DUK_ASC_LC_U, DUK_ASC_LC_V, + DUK_ASC_LC_W, DUK_ASC_LC_X, DUK_ASC_LC_Y, DUK_ASC_LC_Z +}; + +DUK_INTERNAL const duk_uint8_t duk_uc_nybbles[16] = { + DUK_ASC_0, DUK_ASC_1, DUK_ASC_2, DUK_ASC_3, + DUK_ASC_4, DUK_ASC_5, DUK_ASC_6, DUK_ASC_7, + DUK_ASC_8, DUK_ASC_9, DUK_ASC_UC_A, DUK_ASC_UC_B, + DUK_ASC_UC_C, DUK_ASC_UC_D, DUK_ASC_UC_E, DUK_ASC_UC_F +}; + +/* + * Table for hex decoding ASCII hex digits + */ + +DUK_INTERNAL const duk_int8_t duk_hex_dectab[256] = { + /* -1 if invalid */ + -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* 0x00-0x0f */ + -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* 0x10-0x1f */ + -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* 0x20-0x2f */ + 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, -1, -1, -1, -1, -1, -1, /* 0x30-0x3f */ + -1, 10, 11, 12, 13, 14, 15, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* 0x40-0x4f */ + -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* 0x50-0x5f */ + -1, 10, 11, 12, 13, 14, 15, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* 0x60-0x6f */ + -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* 0x70-0x7f */ + -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* 0x80-0x8f */ + -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* 0x90-0x9f */ + -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* 0xa0-0xaf */ + -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* 0xb0-0xbf */ + -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* 0xc0-0xcf */ + -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* 0xd0-0xdf */ + -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* 0xe0-0xef */ + -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1 /* 0xf0-0xff */ +}; + +#if defined(DUK_USE_HEX_FASTPATH) +/* Preshifted << 4. Must use 16-bit entry to allow negative value signaling. */ +DUK_INTERNAL const duk_int16_t duk_hex_dectab_shift4[256] = { + -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* 0x00-0x0f */ + -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* 0x10-0x1f */ + -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* 0x20-0x2f */ + 0x00, 0x10, 0x20, 0x30, 0x40, 0x50, 0x60, 0x70, 0x80, 0x90, -1, -1, -1, -1, -1, -1, /* 0x30-0x3f */ + -1, 0xa0, 0xb0, 0xc0, 0xd0, 0xe0, 0xf0, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* 0x40-0x4f */ + -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* 0x50-0x5f */ + -1, 0xa0, 0xb0, 0xc0, 0xd0, 0xe0, 0xf0, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* 0x60-0x6f */ + -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* 0x70-0x7f */ + -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* 0x80-0x8f */ + -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* 0x90-0x9f */ + -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* 0xa0-0xaf */ + -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* 0xb0-0xbf */ + -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* 0xc0-0xcf */ + -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* 0xd0-0xdf */ + -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* 0xe0-0xef */ + -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1 /* 0xf0-0xff */ +}; +#endif + +/* + * Table for hex encoding bytes + */ + +#if defined(DUK_USE_HEX_FASTPATH) +/* Lookup to encode one byte directly into 2 characters: + * + * def genhextab(bswap): + * for i in xrange(256): + * t = chr(i).encode('hex') + * if bswap: + * t = t[1] + t[0] + * print('0x' + t.encode('hex') + 'U') + * print('big endian'); genhextab(False) + * print('little endian'); genhextab(True) +*/ +DUK_INTERNAL const duk_uint16_t duk_hex_enctab[256] = { +#if defined(DUK_USE_INTEGER_BE) + 0x3030U, 0x3031U, 0x3032U, 0x3033U, 0x3034U, 0x3035U, 0x3036U, 0x3037U, + 0x3038U, 0x3039U, 0x3061U, 0x3062U, 0x3063U, 0x3064U, 0x3065U, 0x3066U, + 0x3130U, 0x3131U, 0x3132U, 0x3133U, 0x3134U, 0x3135U, 0x3136U, 0x3137U, + 0x3138U, 0x3139U, 0x3161U, 0x3162U, 0x3163U, 0x3164U, 0x3165U, 0x3166U, + 0x3230U, 0x3231U, 0x3232U, 0x3233U, 0x3234U, 0x3235U, 0x3236U, 0x3237U, + 0x3238U, 0x3239U, 0x3261U, 0x3262U, 0x3263U, 0x3264U, 0x3265U, 0x3266U, + 0x3330U, 0x3331U, 0x3332U, 0x3333U, 0x3334U, 0x3335U, 0x3336U, 0x3337U, + 0x3338U, 0x3339U, 0x3361U, 0x3362U, 0x3363U, 0x3364U, 0x3365U, 0x3366U, + 0x3430U, 0x3431U, 0x3432U, 0x3433U, 0x3434U, 0x3435U, 0x3436U, 0x3437U, + 0x3438U, 0x3439U, 0x3461U, 0x3462U, 0x3463U, 0x3464U, 0x3465U, 0x3466U, + 0x3530U, 0x3531U, 0x3532U, 0x3533U, 0x3534U, 0x3535U, 0x3536U, 0x3537U, + 0x3538U, 0x3539U, 0x3561U, 0x3562U, 0x3563U, 0x3564U, 0x3565U, 0x3566U, + 0x3630U, 0x3631U, 0x3632U, 0x3633U, 0x3634U, 0x3635U, 0x3636U, 0x3637U, + 0x3638U, 0x3639U, 0x3661U, 0x3662U, 0x3663U, 0x3664U, 0x3665U, 0x3666U, + 0x3730U, 0x3731U, 0x3732U, 0x3733U, 0x3734U, 0x3735U, 0x3736U, 0x3737U, + 0x3738U, 0x3739U, 0x3761U, 0x3762U, 0x3763U, 0x3764U, 0x3765U, 0x3766U, + 0x3830U, 0x3831U, 0x3832U, 0x3833U, 0x3834U, 0x3835U, 0x3836U, 0x3837U, + 0x3838U, 0x3839U, 0x3861U, 0x3862U, 0x3863U, 0x3864U, 0x3865U, 0x3866U, + 0x3930U, 0x3931U, 0x3932U, 0x3933U, 0x3934U, 0x3935U, 0x3936U, 0x3937U, + 0x3938U, 0x3939U, 0x3961U, 0x3962U, 0x3963U, 0x3964U, 0x3965U, 0x3966U, + 0x6130U, 0x6131U, 0x6132U, 0x6133U, 0x6134U, 0x6135U, 0x6136U, 0x6137U, + 0x6138U, 0x6139U, 0x6161U, 0x6162U, 0x6163U, 0x6164U, 0x6165U, 0x6166U, + 0x6230U, 0x6231U, 0x6232U, 0x6233U, 0x6234U, 0x6235U, 0x6236U, 0x6237U, + 0x6238U, 0x6239U, 0x6261U, 0x6262U, 0x6263U, 0x6264U, 0x6265U, 0x6266U, + 0x6330U, 0x6331U, 0x6332U, 0x6333U, 0x6334U, 0x6335U, 0x6336U, 0x6337U, + 0x6338U, 0x6339U, 0x6361U, 0x6362U, 0x6363U, 0x6364U, 0x6365U, 0x6366U, + 0x6430U, 0x6431U, 0x6432U, 0x6433U, 0x6434U, 0x6435U, 0x6436U, 0x6437U, + 0x6438U, 0x6439U, 0x6461U, 0x6462U, 0x6463U, 0x6464U, 0x6465U, 0x6466U, + 0x6530U, 0x6531U, 0x6532U, 0x6533U, 0x6534U, 0x6535U, 0x6536U, 0x6537U, + 0x6538U, 0x6539U, 0x6561U, 0x6562U, 0x6563U, 0x6564U, 0x6565U, 0x6566U, + 0x6630U, 0x6631U, 0x6632U, 0x6633U, 0x6634U, 0x6635U, 0x6636U, 0x6637U, + 0x6638U, 0x6639U, 0x6661U, 0x6662U, 0x6663U, 0x6664U, 0x6665U, 0x6666U +#else /* DUK_USE_INTEGER_BE */ + 0x3030U, 0x3130U, 0x3230U, 0x3330U, 0x3430U, 0x3530U, 0x3630U, 0x3730U, + 0x3830U, 0x3930U, 0x6130U, 0x6230U, 0x6330U, 0x6430U, 0x6530U, 0x6630U, + 0x3031U, 0x3131U, 0x3231U, 0x3331U, 0x3431U, 0x3531U, 0x3631U, 0x3731U, + 0x3831U, 0x3931U, 0x6131U, 0x6231U, 0x6331U, 0x6431U, 0x6531U, 0x6631U, + 0x3032U, 0x3132U, 0x3232U, 0x3332U, 0x3432U, 0x3532U, 0x3632U, 0x3732U, + 0x3832U, 0x3932U, 0x6132U, 0x6232U, 0x6332U, 0x6432U, 0x6532U, 0x6632U, + 0x3033U, 0x3133U, 0x3233U, 0x3333U, 0x3433U, 0x3533U, 0x3633U, 0x3733U, + 0x3833U, 0x3933U, 0x6133U, 0x6233U, 0x6333U, 0x6433U, 0x6533U, 0x6633U, + 0x3034U, 0x3134U, 0x3234U, 0x3334U, 0x3434U, 0x3534U, 0x3634U, 0x3734U, + 0x3834U, 0x3934U, 0x6134U, 0x6234U, 0x6334U, 0x6434U, 0x6534U, 0x6634U, + 0x3035U, 0x3135U, 0x3235U, 0x3335U, 0x3435U, 0x3535U, 0x3635U, 0x3735U, + 0x3835U, 0x3935U, 0x6135U, 0x6235U, 0x6335U, 0x6435U, 0x6535U, 0x6635U, + 0x3036U, 0x3136U, 0x3236U, 0x3336U, 0x3436U, 0x3536U, 0x3636U, 0x3736U, + 0x3836U, 0x3936U, 0x6136U, 0x6236U, 0x6336U, 0x6436U, 0x6536U, 0x6636U, + 0x3037U, 0x3137U, 0x3237U, 0x3337U, 0x3437U, 0x3537U, 0x3637U, 0x3737U, + 0x3837U, 0x3937U, 0x6137U, 0x6237U, 0x6337U, 0x6437U, 0x6537U, 0x6637U, + 0x3038U, 0x3138U, 0x3238U, 0x3338U, 0x3438U, 0x3538U, 0x3638U, 0x3738U, + 0x3838U, 0x3938U, 0x6138U, 0x6238U, 0x6338U, 0x6438U, 0x6538U, 0x6638U, + 0x3039U, 0x3139U, 0x3239U, 0x3339U, 0x3439U, 0x3539U, 0x3639U, 0x3739U, + 0x3839U, 0x3939U, 0x6139U, 0x6239U, 0x6339U, 0x6439U, 0x6539U, 0x6639U, + 0x3061U, 0x3161U, 0x3261U, 0x3361U, 0x3461U, 0x3561U, 0x3661U, 0x3761U, + 0x3861U, 0x3961U, 0x6161U, 0x6261U, 0x6361U, 0x6461U, 0x6561U, 0x6661U, + 0x3062U, 0x3162U, 0x3262U, 0x3362U, 0x3462U, 0x3562U, 0x3662U, 0x3762U, + 0x3862U, 0x3962U, 0x6162U, 0x6262U, 0x6362U, 0x6462U, 0x6562U, 0x6662U, + 0x3063U, 0x3163U, 0x3263U, 0x3363U, 0x3463U, 0x3563U, 0x3663U, 0x3763U, + 0x3863U, 0x3963U, 0x6163U, 0x6263U, 0x6363U, 0x6463U, 0x6563U, 0x6663U, + 0x3064U, 0x3164U, 0x3264U, 0x3364U, 0x3464U, 0x3564U, 0x3664U, 0x3764U, + 0x3864U, 0x3964U, 0x6164U, 0x6264U, 0x6364U, 0x6464U, 0x6564U, 0x6664U, + 0x3065U, 0x3165U, 0x3265U, 0x3365U, 0x3465U, 0x3565U, 0x3665U, 0x3765U, + 0x3865U, 0x3965U, 0x6165U, 0x6265U, 0x6365U, 0x6465U, 0x6565U, 0x6665U, + 0x3066U, 0x3166U, 0x3266U, 0x3366U, 0x3466U, 0x3566U, 0x3666U, 0x3766U, + 0x3866U, 0x3966U, 0x6166U, 0x6266U, 0x6366U, 0x6466U, 0x6566U, 0x6666U +#endif /* DUK_USE_INTEGER_BE */ +}; +#endif /* DUK_USE_HEX_FASTPATH */ + +/* + * Table for base-64 encoding + */ + +#if defined(DUK_USE_BASE64_FASTPATH) +DUK_INTERNAL const duk_uint8_t duk_base64_enctab[64] = { + 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, 0x50, /* A...P */ + 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58, 0x59, 0x5a, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, /* Q...f */ + 0x67, 0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, 0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, /* g...v */ + 0x77, 0x78, 0x79, 0x7a, 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x2b, 0x2f /* w.../ */ +}; +#endif /* DUK_USE_BASE64_FASTPATH */ + +/* + * Table for base-64 decoding + */ + +#if defined(DUK_USE_BASE64_FASTPATH) +DUK_INTERNAL const duk_int8_t duk_base64_dectab[256] = { + /* -1 = error, -2 = allowed whitespace, -3 = padding ('='), 0...63 decoded bytes */ + -1, -1, -1, -1, -1, -1, -1, -1, -1, -2, -2, -1, -1, -2, -1, -1, /* 0x00...0x0f */ + -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* 0x10...0x1f */ + -2, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 62, -1, -1, -1, 63, /* 0x20...0x2f */ + 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, -1, -1, -1, -3, -1, -1, /* 0x30...0x3f */ + -1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, /* 0x40...0x4f */ + 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, -1, -1, -1, -1, -1, /* 0x50...0x5f */ + -1, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, /* 0x60...0x6f */ + 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, -1, -1, -1, -1, -1, /* 0x70...0x7f */ + -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* 0x80...0x8f */ + -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* 0x90...0x9f */ + -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* 0xa0...0xaf */ + -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* 0xb0...0xbf */ + -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* 0xc0...0xcf */ + -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* 0xd0...0xdf */ + -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* 0xe0...0xef */ + -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1 /* 0xf0...0xff */ +}; +#endif /* DUK_USE_BASE64_FASTPATH */ + +/* + * Arbitrary byteswap for potentially unaligned values + * + * Used to byteswap pointers e.g. in debugger code. + */ + +#if defined(DUK_USE_DEBUGGER_SUPPORT) /* For now only needed by the debugger. */ +DUK_INTERNAL void duk_byteswap_bytes(duk_uint8_t *p, duk_small_uint_t len) { + duk_uint8_t tmp; + duk_uint8_t *q = p + len - 1; + + while (p - q < 0) { + tmp = *p; + *p = *q; + *q = tmp; + p++; + q--; + } +} +#endif +#line 1 "duk_util_hashprime.c" +/* + * Round a number upwards to a prime (not usually the nearest one). + * + * Uses a table of successive 32-bit primes whose ratio is roughly + * constant. This keeps the relative upwards 'rounding error' bounded + * and the data size small. A simple 'predict-correct' compression is + * used to compress primes to one byte per prime. See genhashsizes.py + * for details. + * + * The minimum prime returned here must be coordinated with the possible + * probe sequence steps in duk_hobject and duk_heap stringtable. + */ + +/* include removed: duk_internal.h */ + +/* Awkward inclusion condition: drop out of compilation if not needed by any + * call site: object hash part or probing stringtable. + */ +#if defined(DUK_USE_HOBJECT_HASH_PART) || defined(DUK_USE_STRTAB_PROBE) + +/* hash size ratio goal, must match genhashsizes.py */ +#define DUK__HASH_SIZE_RATIO 1177 /* floor(1.15 * (1 << 10)) */ + +/* prediction corrections for prime list (see genhashsizes.py) */ +DUK_LOCAL const duk_int8_t duk__hash_size_corrections[] = { + 17, /* minimum prime */ + 4, 3, 4, 1, 4, 1, 1, 2, 2, 2, 2, 1, 6, 6, 9, 5, 1, 2, 2, 5, 1, 3, 3, 3, + 5, 4, 4, 2, 4, 8, 3, 4, 23, 2, 4, 7, 8, 11, 2, 12, 15, 10, 1, 1, 5, 1, 5, + 8, 9, 17, 14, 10, 7, 5, 2, 46, 21, 1, 9, 9, 4, 4, 10, 23, 36, 6, 20, 29, + 18, 6, 19, 21, 16, 11, 5, 5, 48, 9, 1, 39, 14, 8, 4, 29, 9, 1, 15, 48, 12, + 22, 6, 15, 27, 4, 2, 17, 28, 8, 9, 4, 5, 8, 3, 3, 8, 37, 11, 15, 8, 30, + 43, 6, 33, 41, 5, 20, 32, 41, 38, 24, 77, 14, 19, 11, 4, 35, 18, 19, 41, + 10, 23, 16, 9, 2, + -1 +}; + +/* probe steps (see genhashsizes.py), currently assumed to be 32 entries long + * (DUK_UTIL_GET_HASH_PROBE_STEP macro). + */ +DUK_INTERNAL duk_uint8_t duk_util_probe_steps[32] = { + 2, 3, 5, 7, 11, 13, 19, 31, 41, 47, 59, 67, 73, 79, 89, 101, 103, 107, + 109, 127, 137, 139, 149, 157, 163, 167, 173, 181, 191, 193, 197, 199 +}; + +DUK_INTERNAL duk_uint32_t duk_util_get_hash_prime(duk_uint32_t size) { + const duk_int8_t *p = duk__hash_size_corrections; + duk_uint32_t curr; + + curr = (duk_uint32_t) *p++; + for (;;) { + duk_small_int_t t = (duk_small_int_t) *p++; + if (t < 0) { + /* may happen if size is very close to 2^32-1 */ + break; + } + + /* prediction: portable variant using doubles if 64-bit values not available */ +#ifdef DUK_USE_64BIT_OPS + curr = (duk_uint32_t) ((((duk_uint64_t) curr) * ((duk_uint64_t) DUK__HASH_SIZE_RATIO)) >> 10); +#else + /* 32-bit x 11-bit = 43-bit, fits accurately into a double */ + curr = (duk_uint32_t) DUK_FLOOR(((double) curr) * ((double) DUK__HASH_SIZE_RATIO) / 1024.0); +#endif + + /* correction */ + curr += t; + + DUK_DDD(DUK_DDDPRINT("size=%ld, curr=%ld", (long) size, (long) curr)); + + if (curr >= size) { + return curr; + } + } + return 0; +} + +#endif /* DUK_USE_HOBJECT_HASH_PART || DUK_USE_STRTAB_PROBE */ +#line 1 "duk_hobject_class.c" +/* + * Hobject Ecmascript [[Class]]. + */ + +/* include removed: duk_internal.h */ + +#if (DUK_STRIDX_UC_ARGUMENTS > 255) +#error constant too large +#endif +#if (DUK_STRIDX_ARRAY > 255) +#error constant too large +#endif +#if (DUK_STRIDX_UC_BOOLEAN > 255) +#error constant too large +#endif +#if (DUK_STRIDX_DATE > 255) +#error constant too large +#endif +#if (DUK_STRIDX_UC_ERROR > 255) +#error constant too large +#endif +#if (DUK_STRIDX_UC_FUNCTION > 255) +#error constant too large +#endif +#if (DUK_STRIDX_JSON > 255) +#error constant too large +#endif +#if (DUK_STRIDX_MATH > 255) +#error constant too large +#endif +#if (DUK_STRIDX_UC_NUMBER > 255) +#error constant too large +#endif +#if (DUK_STRIDX_UC_OBJECT > 255) +#error constant too large +#endif +#if (DUK_STRIDX_REG_EXP > 255) +#error constant too large +#endif +#if (DUK_STRIDX_UC_STRING > 255) +#error constant too large +#endif +#if (DUK_STRIDX_GLOBAL > 255) +#error constant too large +#endif +#if (DUK_STRIDX_OBJ_ENV > 255) +#error constant too large +#endif +#if (DUK_STRIDX_DEC_ENV > 255) +#error constant too large +#endif +#if (DUK_STRIDX_UC_BUFFER > 255) +#error constant too large +#endif +#if (DUK_STRIDX_UC_POINTER > 255) +#error constant too large +#endif +#if (DUK_STRIDX_UC_THREAD > 255) +#error constant too large +#endif +#if (DUK_STRIDX_ARRAY_BUFFER > 255) +#error constant too large +#endif +#if (DUK_STRIDX_DATA_VIEW > 255) +#error constant too large +#endif +#if (DUK_STRIDX_INT8_ARRAY > 255) +#error constant too large +#endif +#if (DUK_STRIDX_UINT8_ARRAY > 255) +#error constant too large +#endif +#if (DUK_STRIDX_UINT8_CLAMPED_ARRAY > 255) +#error constant too large +#endif +#if (DUK_STRIDX_INT16_ARRAY > 255) +#error constant too large +#endif +#if (DUK_STRIDX_UINT16_ARRAY > 255) +#error constant too large +#endif +#if (DUK_STRIDX_INT32_ARRAY > 255) +#error constant too large +#endif +#if (DUK_STRIDX_UINT32_ARRAY > 255) +#error constant too large +#endif +#if (DUK_STRIDX_FLOAT32_ARRAY > 255) +#error constant too large +#endif +#if (DUK_STRIDX_FLOAT64_ARRAY > 255) +#error constant too large +#endif +#if (DUK_STRIDX_EMPTY_STRING > 255) +#error constant too large +#endif + +/* Note: assumes that these string indexes are 8-bit, genstrings.py must ensure that */ +DUK_INTERNAL duk_uint8_t duk_class_number_to_stridx[32] = { + DUK_STRIDX_EMPTY_STRING, /* UNUSED, intentionally empty */ + DUK_STRIDX_UC_ARGUMENTS, + DUK_STRIDX_ARRAY, + DUK_STRIDX_UC_BOOLEAN, + DUK_STRIDX_DATE, + DUK_STRIDX_UC_ERROR, + DUK_STRIDX_UC_FUNCTION, + DUK_STRIDX_JSON, + DUK_STRIDX_MATH, + DUK_STRIDX_UC_NUMBER, + DUK_STRIDX_UC_OBJECT, + DUK_STRIDX_REG_EXP, + DUK_STRIDX_UC_STRING, + DUK_STRIDX_GLOBAL, + DUK_STRIDX_OBJ_ENV, + DUK_STRIDX_DEC_ENV, + DUK_STRIDX_UC_BUFFER, + DUK_STRIDX_UC_POINTER, + DUK_STRIDX_UC_THREAD, + DUK_STRIDX_ARRAY_BUFFER, + DUK_STRIDX_DATA_VIEW, + DUK_STRIDX_INT8_ARRAY, + DUK_STRIDX_UINT8_ARRAY, + DUK_STRIDX_UINT8_CLAMPED_ARRAY, + DUK_STRIDX_INT16_ARRAY, + DUK_STRIDX_UINT16_ARRAY, + DUK_STRIDX_INT32_ARRAY, + DUK_STRIDX_UINT32_ARRAY, + DUK_STRIDX_FLOAT32_ARRAY, + DUK_STRIDX_FLOAT64_ARRAY, + DUK_STRIDX_EMPTY_STRING, /* UNUSED, intentionally empty */ + DUK_STRIDX_EMPTY_STRING, /* UNUSED, intentionally empty */ +}; +#line 1 "duk_alloc_default.c" +/* + * Default allocation functions. + * + * Assumes behavior such as malloc allowing zero size, yielding + * a NULL or a unique pointer which is a no-op for free. + */ + +/* include removed: duk_internal.h */ + +#if defined(DUK_USE_PROVIDE_DEFAULT_ALLOC_FUNCTIONS) +DUK_INTERNAL void *duk_default_alloc_function(void *udata, duk_size_t size) { + void *res; + DUK_UNREF(udata); + res = DUK_ANSI_MALLOC(size); + DUK_DDD(DUK_DDDPRINT("default alloc function: %lu -> %p", + (unsigned long) size, (void *) res)); + return res; +} + +DUK_INTERNAL void *duk_default_realloc_function(void *udata, void *ptr, duk_size_t newsize) { + void *res; + DUK_UNREF(udata); + res = DUK_ANSI_REALLOC(ptr, newsize); + DUK_DDD(DUK_DDDPRINT("default realloc function: %p %lu -> %p", + (void *) ptr, (unsigned long) newsize, (void *) res)); + return res; +} + +DUK_INTERNAL void duk_default_free_function(void *udata, void *ptr) { + DUK_DDD(DUK_DDDPRINT("default free function: %p", (void *) ptr)); + DUK_UNREF(udata); + DUK_ANSI_FREE(ptr); +} +#endif /* DUK_USE_PROVIDE_DEFAULT_ALLOC_FUNCTIONS */ +#line 1 "duk_api_buffer.c" +/* + * Buffer + */ + +/* include removed: duk_internal.h */ + +DUK_EXTERNAL void *duk_resize_buffer(duk_context *ctx, duk_idx_t index, duk_size_t new_size) { + duk_hthread *thr = (duk_hthread *) ctx; + duk_hbuffer_dynamic *h; + + DUK_ASSERT_CTX_VALID(ctx); + + h = (duk_hbuffer_dynamic *) duk_require_hbuffer(ctx, index); + DUK_ASSERT(h != NULL); + + if (!(DUK_HBUFFER_HAS_DYNAMIC(h) && !DUK_HBUFFER_HAS_EXTERNAL(h))) { + DUK_ERROR_TYPE(thr, DUK_STR_WRONG_BUFFER_TYPE); + } + + /* maximum size check is handled by callee */ + duk_hbuffer_resize(thr, h, new_size); + + return DUK_HBUFFER_DYNAMIC_GET_DATA_PTR(thr->heap, h); +} + +DUK_EXTERNAL void *duk_steal_buffer(duk_context *ctx, duk_idx_t index, duk_size_t *out_size) { + duk_hthread *thr = (duk_hthread *) ctx; + duk_hbuffer_dynamic *h; + void *ptr; + duk_size_t sz; + + DUK_ASSERT(ctx != NULL); + + h = (duk_hbuffer_dynamic *) duk_require_hbuffer(ctx, index); + DUK_ASSERT(h != NULL); + + if (!(DUK_HBUFFER_HAS_DYNAMIC(h) && !DUK_HBUFFER_HAS_EXTERNAL(h))) { + DUK_ERROR_TYPE(thr, DUK_STR_WRONG_BUFFER_TYPE); + } + + /* Forget the previous allocation, setting size to 0 and alloc to + * NULL. Caller is responsible for freeing the previous allocation. + * Getting the allocation and clearing it is done in the same API + * call to avoid any chance of a realloc. + */ + ptr = DUK_HBUFFER_DYNAMIC_GET_DATA_PTR(thr->heap, h); + sz = DUK_HBUFFER_DYNAMIC_GET_SIZE(h); + if (out_size) { + *out_size = sz; + } + DUK_HBUFFER_DYNAMIC_SET_DATA_PTR_NULL(thr->heap, h); + DUK_HBUFFER_DYNAMIC_SET_SIZE(h, 0); + + return ptr; +} + +DUK_EXTERNAL void duk_config_buffer(duk_context *ctx, duk_idx_t index, void *ptr, duk_size_t len) { + duk_hthread *thr = (duk_hthread *) ctx; + duk_hbuffer_external *h; + + DUK_ASSERT(ctx != NULL); + + h = (duk_hbuffer_external *) duk_require_hbuffer(ctx, index); + DUK_ASSERT(h != NULL); + + if (!DUK_HBUFFER_HAS_EXTERNAL(h)) { + DUK_ERROR_TYPE(thr, DUK_STR_WRONG_BUFFER_TYPE); + } + DUK_ASSERT(DUK_HBUFFER_HAS_DYNAMIC(h)); + + DUK_HBUFFER_EXTERNAL_SET_DATA_PTR(thr->heap, h, ptr); + DUK_HBUFFER_EXTERNAL_SET_SIZE(h, len); +} +#line 1 "duk_api_bytecode.c" +/* + * Bytecode dump/load + * + * The bytecode load primitive is more important performance-wise than the + * dump primitive. + * + * Unlike most Duktape API calls, bytecode dump/load is not guaranteed to be + * memory safe for invalid arguments - caller beware! There's little point + * in trying to achieve memory safety unless bytecode instructions are also + * validated which is not easy to do with indirect register references etc. + */ + +/* include removed: duk_internal.h */ + +#if defined(DUK_USE_BYTECODE_DUMP_SUPPORT) + +#define DUK__SER_MARKER 0xff +#define DUK__SER_VERSION 0x00 +#define DUK__SER_STRING 0x00 +#define DUK__SER_NUMBER 0x01 +#define DUK__BYTECODE_INITIAL_ALLOC 256 + +/* + * Dump/load helpers, xxx_raw() helpers do no buffer checks + */ + +DUK_LOCAL duk_uint8_t *duk__load_string_raw(duk_context *ctx, duk_uint8_t *p) { + duk_uint32_t len; + + len = DUK_RAW_READ_U32_BE(p); + duk_push_lstring(ctx, (const char *) p, len); + p += len; + return p; +} + +DUK_LOCAL duk_uint8_t *duk__load_buffer_raw(duk_context *ctx, duk_uint8_t *p) { + duk_uint32_t len; + duk_uint8_t *buf; + + len = DUK_RAW_READ_U32_BE(p); + buf = (duk_uint8_t *) duk_push_fixed_buffer(ctx, (duk_size_t) len); + DUK_ASSERT(buf != NULL); + DUK_MEMCPY((void *) buf, (const void *) p, (size_t) len); + p += len; + return p; +} + +DUK_LOCAL duk_uint8_t *duk__dump_hstring_raw(duk_uint8_t *p, duk_hstring *h) { + duk_size_t len; + duk_uint32_t tmp32; + + DUK_ASSERT(h != NULL); + + len = DUK_HSTRING_GET_BYTELEN(h); + DUK_ASSERT(len <= 0xffffffffUL); /* string limits */ + tmp32 = (duk_uint32_t) len; + DUK_RAW_WRITE_U32_BE(p, tmp32); + DUK_MEMCPY((void *) p, + (const void *) DUK_HSTRING_GET_DATA(h), + len); + p += len; + return p; +} + +DUK_LOCAL duk_uint8_t *duk__dump_hbuffer_raw(duk_hthread *thr, duk_uint8_t *p, duk_hbuffer *h) { + duk_size_t len; + duk_uint32_t tmp32; + + DUK_ASSERT(thr != NULL); + DUK_ASSERT(h != NULL); + DUK_UNREF(thr); + + len = DUK_HBUFFER_GET_SIZE(h); + DUK_ASSERT(len <= 0xffffffffUL); /* buffer limits */ + tmp32 = (duk_uint32_t) len; + DUK_RAW_WRITE_U32_BE(p, tmp32); + DUK_MEMCPY((void *) p, + (const void *) DUK_HBUFFER_GET_DATA_PTR(thr->heap, h), + len); + p += len; + return p; +} + +DUK_LOCAL duk_uint8_t *duk__dump_string_prop(duk_hthread *thr, duk_uint8_t *p, duk_bufwriter_ctx *bw_ctx, duk_hobject *func, duk_small_uint_t stridx) { + duk_hstring *h_str; + duk_tval *tv; + + tv = duk_hobject_find_existing_entry_tval_ptr(thr->heap, (duk_hobject *) func, DUK_HTHREAD_GET_STRING(thr, stridx)); + if (tv != NULL && DUK_TVAL_IS_STRING(tv)) { + h_str = DUK_TVAL_GET_STRING(tv); + DUK_ASSERT(h_str != NULL); + } else { + h_str = DUK_HTHREAD_STRING_EMPTY_STRING(thr); + DUK_ASSERT(h_str != NULL); + } + DUK_ASSERT(DUK_HSTRING_MAX_BYTELEN <= 0x7fffffffUL); /* ensures no overflow */ + p = DUK_BW_ENSURE_RAW(thr, bw_ctx, 4 + DUK_HSTRING_GET_BYTELEN(h_str), p); + p = duk__dump_hstring_raw(p, h_str); + return p; +} + +DUK_LOCAL duk_uint8_t *duk__dump_buffer_prop(duk_hthread *thr, duk_uint8_t *p, duk_bufwriter_ctx *bw_ctx, duk_hobject *func, duk_small_uint_t stridx) { + duk_tval *tv; + + tv = duk_hobject_find_existing_entry_tval_ptr(thr->heap, (duk_hobject *) func, DUK_HTHREAD_GET_STRING(thr, stridx)); + if (tv != NULL && DUK_TVAL_IS_BUFFER(tv)) { + duk_hbuffer *h_buf; + h_buf = DUK_TVAL_GET_BUFFER(tv); + DUK_ASSERT(h_buf != NULL); + DUK_ASSERT(DUK_HBUFFER_MAX_BYTELEN <= 0x7fffffffUL); /* ensures no overflow */ + p = DUK_BW_ENSURE_RAW(thr, bw_ctx, 4 + DUK_HBUFFER_GET_SIZE(h_buf), p); + p = duk__dump_hbuffer_raw(thr, p, h_buf); + } else { + p = DUK_BW_ENSURE_RAW(thr, bw_ctx, 4, p); + DUK_RAW_WRITE_U32_BE(p, 0); + } + return p; +} + +DUK_LOCAL duk_uint8_t *duk__dump_uint32_prop(duk_hthread *thr, duk_uint8_t *p, duk_bufwriter_ctx *bw_ctx, duk_hobject *func, duk_small_uint_t stridx, duk_uint32_t def_value) { + duk_tval *tv; + duk_uint32_t val; + + tv = duk_hobject_find_existing_entry_tval_ptr(thr->heap, (duk_hobject *) func, DUK_HTHREAD_GET_STRING(thr, stridx)); + if (tv != NULL && DUK_TVAL_IS_NUMBER(tv)) { + val = (duk_uint32_t) DUK_TVAL_GET_NUMBER(tv); + } else { + val = def_value; + } + p = DUK_BW_ENSURE_RAW(thr, bw_ctx, 4, p); + DUK_RAW_WRITE_U32_BE(p, val); + return p; +} + +DUK_LOCAL duk_uint8_t *duk__dump_varmap(duk_hthread *thr, duk_uint8_t *p, duk_bufwriter_ctx *bw_ctx, duk_hobject *func) { + duk_tval *tv; + + tv = duk_hobject_find_existing_entry_tval_ptr(thr->heap, (duk_hobject *) func, DUK_HTHREAD_STRING_INT_VARMAP(thr)); + if (tv != NULL && DUK_TVAL_IS_OBJECT(tv)) { + duk_hobject *h; + duk_uint_fast32_t i; + + h = DUK_TVAL_GET_OBJECT(tv); + DUK_ASSERT(h != NULL); + + /* We know _Varmap only has own properties so walk property + * table directly. We also know _Varmap is dense and all + * values are numbers; assert for these. GC and finalizers + * shouldn't affect _Varmap so side effects should be fine. + */ + for (i = 0; i < (duk_uint_fast32_t) DUK_HOBJECT_GET_ENEXT(h); i++) { + duk_hstring *key; + duk_tval *tv_val; + duk_uint32_t val; + + key = DUK_HOBJECT_E_GET_KEY(thr->heap, h, i); + DUK_ASSERT(key != NULL); /* _Varmap is dense */ + DUK_ASSERT(!DUK_HOBJECT_E_SLOT_IS_ACCESSOR(thr->heap, h, i)); + tv_val = DUK_HOBJECT_E_GET_VALUE_TVAL_PTR(thr->heap, h, i); + DUK_ASSERT(tv_val != NULL); + DUK_ASSERT(DUK_TVAL_IS_NUMBER(tv_val)); /* known to be number; in fact an integer */ +#if defined(DUK_USE_FASTINT) + DUK_ASSERT(DUK_TVAL_IS_FASTINT(tv_val)); + DUK_ASSERT(DUK_TVAL_GET_FASTINT(tv_val) == (duk_int64_t) DUK_TVAL_GET_FASTINT_U32(tv_val)); /* known to be 32-bit */ + val = DUK_TVAL_GET_FASTINT_U32(tv_val); +#else + val = (duk_uint32_t) DUK_TVAL_GET_NUMBER(tv_val); +#endif + + DUK_ASSERT(DUK_HSTRING_MAX_BYTELEN <= 0x7fffffffUL); /* ensures no overflow */ + p = DUK_BW_ENSURE_RAW(thr, bw_ctx, 4 + DUK_HSTRING_GET_BYTELEN(key) + 4, p); + p = duk__dump_hstring_raw(p, key); + DUK_RAW_WRITE_U32_BE(p, val); + } + } + p = DUK_BW_ENSURE_RAW(thr, bw_ctx, 4, p); + DUK_RAW_WRITE_U32_BE(p, 0); /* end of _Varmap */ + return p; +} + +DUK_LOCAL duk_uint8_t *duk__dump_formals(duk_hthread *thr, duk_uint8_t *p, duk_bufwriter_ctx *bw_ctx, duk_hobject *func) { + duk_tval *tv; + + tv = duk_hobject_find_existing_entry_tval_ptr(thr->heap, (duk_hobject *) func, DUK_HTHREAD_STRING_INT_FORMALS(thr)); + if (tv != NULL && DUK_TVAL_IS_OBJECT(tv)) { + duk_hobject *h; + duk_uint_fast32_t i; + + h = DUK_TVAL_GET_OBJECT(tv); + DUK_ASSERT(h != NULL); + + /* We know _Formals is dense and all entries will be in the + * array part. GC and finalizers shouldn't affect _Formals + * so side effects should be fine. + */ + for (i = 0; i < (duk_uint_fast32_t) DUK_HOBJECT_GET_ASIZE(h); i++) { + duk_tval *tv_val; + duk_hstring *varname; + + tv_val = DUK_HOBJECT_A_GET_VALUE_PTR(thr->heap, h, i); + DUK_ASSERT(tv_val != NULL); + if (DUK_TVAL_IS_STRING(tv_val)) { + /* Array is dense and contains only strings, but ASIZE may + * be larger than used part and there are UNUSED entries. + */ + varname = DUK_TVAL_GET_STRING(tv_val); + DUK_ASSERT(varname != NULL); + + DUK_ASSERT(DUK_HSTRING_MAX_BYTELEN <= 0x7fffffffUL); /* ensures no overflow */ + p = DUK_BW_ENSURE_RAW(thr, bw_ctx, 4 + DUK_HSTRING_GET_BYTELEN(varname), p); + p = duk__dump_hstring_raw(p, varname); + } + } + } + p = DUK_BW_ENSURE_RAW(thr, bw_ctx, 4, p); + DUK_RAW_WRITE_U32_BE(p, 0); /* end of _Formals */ + return p; +} + +static duk_uint8_t *duk__dump_func(duk_context *ctx, duk_hcompiledfunction *func, duk_bufwriter_ctx *bw_ctx, duk_uint8_t *p) { + duk_hthread *thr; + duk_tval *tv, *tv_end; + duk_instr_t *ins, *ins_end; + duk_hobject **fn, **fn_end; + duk_hstring *h_str; + duk_uint32_t count_instr; + duk_uint32_t tmp32; + duk_uint16_t tmp16; + duk_double_t d; + + thr = (duk_hthread *) ctx; + DUK_UNREF(ctx); + DUK_UNREF(thr); + + DUK_DD(DUK_DDPRINT("dumping function %p to %p: " + "consts=[%p,%p[ (%ld bytes, %ld items), " + "funcs=[%p,%p[ (%ld bytes, %ld items), " + "code=[%p,%p[ (%ld bytes, %ld items)", + (void *) func, + (void *) p, + (void *) DUK_HCOMPILEDFUNCTION_GET_CONSTS_BASE(thr->heap, func), + (void *) DUK_HCOMPILEDFUNCTION_GET_CONSTS_END(thr->heap, func), + (long) DUK_HCOMPILEDFUNCTION_GET_CONSTS_SIZE(thr->heap, func), + (long) DUK_HCOMPILEDFUNCTION_GET_CONSTS_COUNT(thr->heap, func), + (void *) DUK_HCOMPILEDFUNCTION_GET_FUNCS_BASE(thr->heap, func), + (void *) DUK_HCOMPILEDFUNCTION_GET_FUNCS_END(thr->heap, func), + (long) DUK_HCOMPILEDFUNCTION_GET_FUNCS_SIZE(thr->heap, func), + (long) DUK_HCOMPILEDFUNCTION_GET_FUNCS_COUNT(thr->heap, func), + (void *) DUK_HCOMPILEDFUNCTION_GET_CODE_BASE(thr->heap, func), + (void *) DUK_HCOMPILEDFUNCTION_GET_CODE_END(thr->heap, func), + (long) DUK_HCOMPILEDFUNCTION_GET_CODE_SIZE(thr->heap, func), + (long) DUK_HCOMPILEDFUNCTION_GET_CODE_COUNT(thr->heap, func))); + + DUK_ASSERT(DUK_USE_ESBC_MAX_BYTES <= 0x7fffffffUL); /* ensures no overflow */ + count_instr = (duk_uint32_t) DUK_HCOMPILEDFUNCTION_GET_CODE_COUNT(thr->heap, func); + p = DUK_BW_ENSURE_RAW(thr, bw_ctx, 3 * 4 + 2 * 2 + 3 * 4 + count_instr * 4, p); + + /* Fixed header info. */ + tmp32 = count_instr; + DUK_RAW_WRITE_U32_BE(p, tmp32); + tmp32 = (duk_uint32_t) DUK_HCOMPILEDFUNCTION_GET_CONSTS_COUNT(thr->heap, func); + DUK_RAW_WRITE_U32_BE(p, tmp32); + tmp32 = (duk_uint32_t) DUK_HCOMPILEDFUNCTION_GET_FUNCS_COUNT(thr->heap, func); + DUK_RAW_WRITE_U32_BE(p, tmp32); + tmp16 = func->nregs; + DUK_RAW_WRITE_U16_BE(p, tmp16); + tmp16 = func->nargs; + DUK_RAW_WRITE_U16_BE(p, tmp16); +#if defined(DUK_USE_DEBUGGER_SUPPORT) + tmp32 = func->start_line; + DUK_RAW_WRITE_U32_BE(p, tmp32); + tmp32 = func->end_line; + DUK_RAW_WRITE_U32_BE(p, tmp32); +#else + DUK_RAW_WRITE_U32_BE(p, 0); + DUK_RAW_WRITE_U32_BE(p, 0); +#endif + tmp32 = ((duk_heaphdr *) func)->h_flags & DUK_HEAPHDR_FLAGS_FLAG_MASK; + DUK_RAW_WRITE_U32_BE(p, tmp32); + + /* Bytecode instructions: endian conversion needed unless + * platform is big endian. + */ + ins = DUK_HCOMPILEDFUNCTION_GET_CODE_BASE(thr->heap, func); + ins_end = DUK_HCOMPILEDFUNCTION_GET_CODE_END(thr->heap, func); + DUK_ASSERT((duk_size_t) (ins_end - ins) == (duk_size_t) count_instr); +#if defined(DUK_USE_INTEGER_BE) + DUK_MEMCPY((void *) p, (const void *) ins, (size_t) (ins_end - ins)); + p += (size_t) (ins_end - ins); +#else + while (ins != ins_end) { + tmp32 = (duk_uint32_t) (*ins); + DUK_RAW_WRITE_U32_BE(p, tmp32); + ins++; + } +#endif + + /* Constants: variable size encoding. */ + tv = DUK_HCOMPILEDFUNCTION_GET_CONSTS_BASE(thr->heap, func); + tv_end = DUK_HCOMPILEDFUNCTION_GET_CONSTS_END(thr->heap, func); + while (tv != tv_end) { + /* constants are strings or numbers now */ + DUK_ASSERT(DUK_TVAL_IS_STRING(tv) || + DUK_TVAL_IS_NUMBER(tv)); + + if (DUK_TVAL_IS_STRING(tv)) { + h_str = DUK_TVAL_GET_STRING(tv); + DUK_ASSERT(h_str != NULL); + DUK_ASSERT(DUK_HSTRING_MAX_BYTELEN <= 0x7fffffffUL); /* ensures no overflow */ + p = DUK_BW_ENSURE_RAW(thr, bw_ctx, 1 + 4 + DUK_HSTRING_GET_BYTELEN(h_str), p), + *p++ = DUK__SER_STRING; + p = duk__dump_hstring_raw(p, h_str); + } else { + DUK_ASSERT(DUK_TVAL_IS_NUMBER(tv)); + p = DUK_BW_ENSURE_RAW(thr, bw_ctx, 1 + 8, p); + *p++ = DUK__SER_NUMBER; + d = DUK_TVAL_GET_NUMBER(tv); + DUK_RAW_WRITE_DOUBLE_BE(p, d); + } + tv++; + } + + /* Inner functions recursively. */ + fn = (duk_hobject **) DUK_HCOMPILEDFUNCTION_GET_FUNCS_BASE(thr->heap, func); + fn_end = (duk_hobject **) DUK_HCOMPILEDFUNCTION_GET_FUNCS_END(thr->heap, func); + while (fn != fn_end) { + /* XXX: This causes recursion up to inner function depth + * which is normally not an issue, e.g. mark-and-sweep uses + * a recursion limiter to avoid C stack issues. Avoiding + * this would mean some sort of a work list or just refusing + * to serialize deep functions. + */ + DUK_ASSERT(DUK_HOBJECT_IS_COMPILEDFUNCTION(*fn)); + p = duk__dump_func(ctx, (duk_hcompiledfunction *) *fn, bw_ctx, p); + fn++; + } + + /* Object extra properties. + * + * There are some difference between function templates and functions. + * For example, function templates don't have .length and nargs is + * normally used to instantiate the functions. + */ + + p = duk__dump_uint32_prop(thr, p, bw_ctx, (duk_hobject *) func, DUK_STRIDX_LENGTH, (duk_uint32_t) func->nargs); + p = duk__dump_string_prop(thr, p, bw_ctx, (duk_hobject *) func, DUK_STRIDX_NAME); + p = duk__dump_string_prop(thr, p, bw_ctx, (duk_hobject *) func, DUK_STRIDX_FILE_NAME); + p = duk__dump_buffer_prop(thr, p, bw_ctx, (duk_hobject *) func, DUK_STRIDX_INT_PC2LINE); + p = duk__dump_varmap(thr, p, bw_ctx, (duk_hobject *) func); + p = duk__dump_formals(thr, p, bw_ctx, (duk_hobject *) func); + + DUK_DD(DUK_DDPRINT("serialized function %p -> final pointer %p", (void *) func, (void *) p)); + + return p; +} + +/* Load a function from bytecode. The function object returned here must + * match what is created by duk_js_push_closure() with respect to its flags, + * properties, etc. + * + * NOTE: there are intentionally no input buffer length / bound checks. + * Adding them would be easy but wouldn't ensure memory safety as untrusted + * or broken bytecode is unsafe during execution unless the opcodes themselves + * are validated (which is quite complex, especially for indirect opcodes). + */ + +#define DUK__ASSERT_LEFT(n) do { \ + DUK_ASSERT((duk_size_t) (p_end - p) >= (duk_size_t) (n)); \ + } while (0) + +static duk_uint8_t *duk__load_func(duk_context *ctx, duk_uint8_t *p, duk_uint8_t *p_end) { + duk_hthread *thr; + duk_hcompiledfunction *h_fun; + duk_hbuffer *h_data; + duk_size_t data_size; + duk_uint32_t count_instr, count_const, count_funcs; + duk_uint32_t n; + duk_uint32_t tmp32; + duk_small_uint_t const_type; + duk_uint8_t *fun_data; + duk_uint8_t *q; + duk_idx_t idx_base; + duk_tval *tv1; + duk_uarridx_t arr_idx; + + /* XXX: There's some overlap with duk_js_closure() here, but + * seems difficult to share code. Ensure that the final function + * looks the same as created by duk_js_closure(). + */ + + DUK_ASSERT(ctx != NULL); + thr = (duk_hthread *) ctx; + + DUK_DD(DUK_DDPRINT("loading function, p=%p, p_end=%p", (void *) p, (void *) p_end)); + + DUK__ASSERT_LEFT(3 * 4); + count_instr = DUK_RAW_READ_U32_BE(p); + count_const = DUK_RAW_READ_U32_BE(p); + count_funcs = DUK_RAW_READ_U32_BE(p); + + data_size = sizeof(duk_tval) * count_const + + sizeof(duk_hobject *) * count_funcs + + sizeof(duk_instr_t) * count_instr; + + DUK_DD(DUK_DDPRINT("instr=%ld, const=%ld, funcs=%ld, data_size=%ld", + (long) count_instr, (long) count_const, + (long) count_const, (long) data_size)); + + /* Value stack is used to ensure reachability of constants and + * inner functions being loaded. Require enough space to handle + * large functions correctly. + */ + duk_require_stack(ctx, 2 + count_const + count_funcs); + idx_base = duk_get_top(ctx); + + /* Push function object, init flags etc. This must match + * duk_js_push_closure() quite carefully. + */ + duk_push_compiledfunction(ctx); + h_fun = duk_get_hcompiledfunction(ctx, -1); + DUK_ASSERT(h_fun != NULL); + DUK_ASSERT(DUK_HOBJECT_IS_COMPILEDFUNCTION((duk_hobject *) h_fun)); + DUK_ASSERT(DUK_HCOMPILEDFUNCTION_GET_DATA(thr->heap, h_fun) == NULL); + DUK_ASSERT(DUK_HCOMPILEDFUNCTION_GET_FUNCS(thr->heap, h_fun) == NULL); + DUK_ASSERT(DUK_HCOMPILEDFUNCTION_GET_BYTECODE(thr->heap, h_fun) == NULL); + + h_fun->nregs = DUK_RAW_READ_U16_BE(p); + h_fun->nargs = DUK_RAW_READ_U16_BE(p); +#if defined(DUK_USE_DEBUGGER_SUPPORT) + h_fun->start_line = DUK_RAW_READ_U32_BE(p); + h_fun->end_line = DUK_RAW_READ_U32_BE(p); +#else + p += 8; /* skip line info */ +#endif + + /* duk_hcompiledfunction flags; quite version specific */ + tmp32 = DUK_RAW_READ_U32_BE(p); + DUK_HEAPHDR_SET_FLAGS((duk_heaphdr *) h_fun, tmp32); + + /* standard prototype */ + DUK_HOBJECT_SET_PROTOTYPE_UPDREF(thr, &h_fun->obj, thr->builtins[DUK_BIDX_FUNCTION_PROTOTYPE]); + + /* assert just a few critical flags */ + DUK_ASSERT(DUK_HEAPHDR_GET_TYPE((duk_heaphdr *) h_fun) == DUK_HTYPE_OBJECT); + DUK_ASSERT(!DUK_HOBJECT_HAS_BOUND(&h_fun->obj)); + DUK_ASSERT(DUK_HOBJECT_HAS_COMPILEDFUNCTION(&h_fun->obj)); + DUK_ASSERT(!DUK_HOBJECT_HAS_NATIVEFUNCTION(&h_fun->obj)); + DUK_ASSERT(!DUK_HOBJECT_HAS_THREAD(&h_fun->obj)); + DUK_ASSERT(!DUK_HOBJECT_HAS_EXOTIC_ARRAY(&h_fun->obj)); + DUK_ASSERT(!DUK_HOBJECT_HAS_EXOTIC_STRINGOBJ(&h_fun->obj)); + DUK_ASSERT(!DUK_HOBJECT_HAS_EXOTIC_ARGUMENTS(&h_fun->obj)); + + /* Create function 'data' buffer but don't attach it yet. */ + fun_data = (duk_uint8_t *) duk_push_fixed_buffer(ctx, data_size); + DUK_ASSERT(fun_data != NULL); + + /* Load bytecode instructions. */ + DUK_ASSERT(sizeof(duk_instr_t) == 4); + DUK__ASSERT_LEFT(count_instr * sizeof(duk_instr_t)); +#if defined(DUK_USE_INTEGER_BE) + q = fun_data + sizeof(duk_tval) * count_const + sizeof(duk_hobject *) * count_funcs; + DUK_MEMCPY((void *) q, + (const void *) p, + sizeof(duk_instr_t) * count_instr); + p += sizeof(duk_instr_t) * count_instr; +#else + q = fun_data + sizeof(duk_tval) * count_const + sizeof(duk_hobject *) * count_funcs; + for (n = count_instr; n > 0; n--) { + *((duk_instr_t *) (void *) q) = DUK_RAW_READ_U32_BE(p); + q += sizeof(duk_instr_t); + } +#endif + + /* Load constants onto value stack but don't yet copy to buffer. */ + for (n = count_const; n > 0; n--) { + DUK__ASSERT_LEFT(1); + const_type = DUK_RAW_READ_U8(p); + switch (const_type) { + case DUK__SER_STRING: { + p = duk__load_string_raw(ctx, p); + break; + } + case DUK__SER_NUMBER: { + /* Important to do a fastint check so that constants are + * properly read back as fastints. + */ + duk_tval tv_tmp; + duk_double_t val; + DUK__ASSERT_LEFT(8); + val = DUK_RAW_READ_DOUBLE_BE(p); + DUK_TVAL_SET_NUMBER_CHKFAST(&tv_tmp, val); + duk_push_tval(ctx, &tv_tmp); + break; + } + default: { + goto format_error; + } + } + } + + /* Load inner functions to value stack, but don't yet copy to buffer. */ + for (n = count_funcs; n > 0; n--) { + p = duk__load_func(ctx, p, p_end); + if (p == NULL) { + goto format_error; + } + } + + /* With constants and inner functions on value stack, we can now + * atomically finish the function 'data' buffer, bump refcounts, + * etc. + * + * Here we take advantage of the value stack being just a duk_tval + * array: we can just memcpy() the constants as long as we incref + * them afterwards. + */ + + h_data = (duk_hbuffer *) duk_get_hbuffer(ctx, idx_base + 1); + DUK_ASSERT(h_data != NULL); + DUK_ASSERT(!DUK_HBUFFER_HAS_DYNAMIC(h_data)); + DUK_HCOMPILEDFUNCTION_SET_DATA(thr->heap, h_fun, h_data); + DUK_HBUFFER_INCREF(thr, h_data); + + tv1 = duk_get_tval(ctx, idx_base + 2); /* may be NULL if no constants or inner funcs */ + DUK_ASSERT((count_const == 0 && count_funcs == 0) || tv1 != NULL); + + q = fun_data; + if (count_const > 0) { + /* Explicit zero size check to avoid NULL 'tv1'. */ + DUK_MEMCPY((void *) q, (const void *) tv1, sizeof(duk_tval) * count_const); + for (n = count_const; n > 0; n--) { + DUK_TVAL_INCREF_FAST(thr, (duk_tval *) (void *) q); /* no side effects */ + q += sizeof(duk_tval); + } + tv1 += count_const; + } + + DUK_HCOMPILEDFUNCTION_SET_FUNCS(thr->heap, h_fun, (duk_hobject **) (void *) q); + for (n = count_funcs; n > 0; n--) { + duk_hobject *h_obj; + + DUK_ASSERT(DUK_TVAL_IS_OBJECT(tv1)); + h_obj = DUK_TVAL_GET_OBJECT(tv1); + DUK_ASSERT(h_obj != NULL); + tv1++; + DUK_HOBJECT_INCREF(thr, h_obj); + + *((duk_hobject **) (void *) q) = h_obj; + q += sizeof(duk_hobject *); + } + + DUK_HCOMPILEDFUNCTION_SET_BYTECODE(thr->heap, h_fun, (duk_instr_t *) (void *) q); + + /* The function object is now reachable and refcounts are fine, + * so we can pop off all the temporaries. + */ + DUK_DDD(DUK_DDDPRINT("function is reachable, reset top; func: %!iT", duk_get_tval(ctx, idx_base))); + duk_set_top(ctx, idx_base + 1); + + /* Setup function properties. */ + tmp32 = DUK_RAW_READ_U32_BE(p); + duk_push_u32(ctx, tmp32); + duk_xdef_prop_stridx(ctx, -2, DUK_STRIDX_LENGTH, DUK_PROPDESC_FLAGS_NONE); + + p = duk__load_string_raw(ctx, p); + if (DUK_HOBJECT_HAS_NAMEBINDING((duk_hobject *) h_fun)) { + /* Original function instance/template had NAMEBINDING. + * Must create a lexical environment on loading to allow + * recursive functions like 'function foo() { foo(); }'. + */ + duk_hobject *proto; + + proto = thr->builtins[DUK_BIDX_GLOBAL_ENV]; + (void) duk_push_object_helper_proto(ctx, + DUK_HOBJECT_FLAG_EXTENSIBLE | + DUK_HOBJECT_CLASS_AS_FLAGS(DUK_HOBJECT_CLASS_DECENV), + proto); + duk_dup(ctx, -2); /* -> [ func funcname env funcname ] */ + duk_dup(ctx, idx_base); /* -> [ func funcname env funcname func ] */ + duk_xdef_prop(ctx, -3, DUK_PROPDESC_FLAGS_NONE); /* -> [ func funcname env ] */ + duk_xdef_prop_stridx(ctx, idx_base, DUK_STRIDX_INT_LEXENV, DUK_PROPDESC_FLAGS_WC); + /* since closure has NEWENV, never define DUK_STRIDX_INT_VARENV, as it + * will be ignored anyway + */ + } + duk_xdef_prop_stridx(ctx, -2, DUK_STRIDX_NAME, DUK_PROPDESC_FLAGS_NONE); + + p = duk__load_string_raw(ctx, p); + duk_xdef_prop_stridx(ctx, -2, DUK_STRIDX_FILE_NAME, DUK_PROPDESC_FLAGS_WC); + + duk_push_object(ctx); + duk_dup(ctx, -2); + duk_xdef_prop_stridx(ctx, -2, DUK_STRIDX_CONSTRUCTOR, DUK_PROPDESC_FLAGS_WC); /* func.prototype.constructor = func */ + duk_compact(ctx, -1); + duk_xdef_prop_stridx(ctx, -2, DUK_STRIDX_PROTOTYPE, DUK_PROPDESC_FLAGS_W); + + p = duk__load_buffer_raw(ctx, p); + duk_xdef_prop_stridx(ctx, -2, DUK_STRIDX_INT_PC2LINE, DUK_PROPDESC_FLAGS_WC); + + duk_push_object(ctx); /* _Varmap */ + for (;;) { + /* XXX: awkward */ + p = duk__load_string_raw(ctx, p); + if (duk_get_length(ctx, -1) == 0) { + duk_pop(ctx); + break; + } + tmp32 = DUK_RAW_READ_U32_BE(p); + duk_push_u32(ctx, tmp32); + duk_put_prop(ctx, -3); + } + duk_compact(ctx, -1); + duk_xdef_prop_stridx(ctx, -2, DUK_STRIDX_INT_VARMAP, DUK_PROPDESC_FLAGS_NONE); + + duk_push_array(ctx); /* _Formals */ + for (arr_idx = 0; ; arr_idx++) { + /* XXX: awkward */ + p = duk__load_string_raw(ctx, p); + if (duk_get_length(ctx, -1) == 0) { + duk_pop(ctx); + break; + } + duk_put_prop_index(ctx, -2, arr_idx); + } + duk_compact(ctx, -1); + duk_xdef_prop_stridx(ctx, -2, DUK_STRIDX_INT_FORMALS, DUK_PROPDESC_FLAGS_NONE); + + /* Return with final function pushed on stack top. */ + DUK_DD(DUK_DDPRINT("final loaded function: %!iT", duk_get_tval(ctx, -1))); + DUK_ASSERT_TOP(ctx, idx_base + 1); + return p; + + format_error: + return NULL; +} + +DUK_EXTERNAL void duk_dump_function(duk_context *ctx) { + duk_hthread *thr; + duk_hcompiledfunction *func; + duk_bufwriter_ctx bw_ctx_alloc; + duk_bufwriter_ctx *bw_ctx = &bw_ctx_alloc; + duk_uint8_t *p; + + DUK_ASSERT(ctx != NULL); + thr = (duk_hthread *) ctx; + + /* Bound functions don't have all properties so we'd either need to + * lookup the non-bound target function or reject bound functions. + * For now, bound functions are rejected. + */ + func = duk_require_hcompiledfunction(ctx, -1); + DUK_ASSERT(func != NULL); + DUK_ASSERT(!DUK_HOBJECT_HAS_BOUND(&func->obj)); + + /* Estimating the result size beforehand would be costly, so + * start with a reasonable size and extend as needed. + */ + DUK_BW_INIT_PUSHBUF(thr, bw_ctx, DUK__BYTECODE_INITIAL_ALLOC); + p = DUK_BW_GET_PTR(thr, bw_ctx); + *p++ = DUK__SER_MARKER; + *p++ = DUK__SER_VERSION; + p = duk__dump_func(ctx, func, bw_ctx, p); + DUK_BW_SET_PTR(thr, bw_ctx, p); + DUK_BW_COMPACT(thr, bw_ctx); + + DUK_DD(DUK_DDPRINT("serialized result: %!T", duk_get_tval(ctx, -1))); + + duk_remove(ctx, -2); /* [ ... func buf ] -> [ ... buf ] */ +} + +DUK_EXTERNAL void duk_load_function(duk_context *ctx) { + duk_hthread *thr; + duk_uint8_t *p_buf, *p, *p_end; + duk_size_t sz; + + DUK_ASSERT(ctx != NULL); + thr = (duk_hthread *) ctx; + DUK_UNREF(ctx); + + p_buf = (duk_uint8_t *) duk_require_buffer(ctx, -1, &sz); + DUK_ASSERT(p_buf != NULL); + + /* The caller is responsible for being sure that bytecode being loaded + * is valid and trusted. Invalid bytecode can cause memory unsafe + * behavior directly during loading or later during bytecode execution + * (instruction validation would be quite complex to implement). + * + * This signature check is the only sanity check for detecting + * accidental invalid inputs. The initial 0xFF byte ensures no + * ordinary string will be accepted by accident. + */ + p = p_buf; + p_end = p_buf + sz; + if (sz < 2 || p[0] != DUK__SER_MARKER || p[1] != DUK__SER_VERSION) { + goto format_error; + } + p += 2; + + p = duk__load_func(ctx, p, p_end); + if (p == NULL) { + goto format_error; + } + + duk_remove(ctx, -2); /* [ ... buf func ] -> [ ... func ] */ + return; + + format_error: + DUK_ERROR_TYPE(thr, DUK_STR_DECODE_FAILED); +} + +#undef DUK__SER_MARKER +#undef DUK__SER_VERSION +#undef DUK__SER_STRING +#undef DUK__SER_NUMBER +#undef DUK__BYTECODE_INITIAL_ALLOC + +#else /* DUK_USE_BYTECODE_DUMP_SUPPORT */ + +DUK_EXTERNAL void duk_dump_function(duk_context *ctx) { + DUK_ERROR_UNSUPPORTED_DEFMSG((duk_hthread *) ctx); +} + +DUK_EXTERNAL void duk_load_function(duk_context *ctx) { + DUK_ERROR_UNSUPPORTED_DEFMSG((duk_hthread *) ctx); +} + +#endif /* DUK_USE_BYTECODE_DUMP_SUPPORT */ +#line 1 "duk_api_call.c" +/* + * Calls. + * + * Protected variants should avoid ever throwing an error. + */ + +/* include removed: duk_internal.h */ + +/* Prepare value stack for a method call through an object property. + * May currently throw an error e.g. when getting the property. + */ +DUK_LOCAL void duk__call_prop_prep_stack(duk_context *ctx, duk_idx_t normalized_obj_index, duk_idx_t nargs) { + DUK_ASSERT_CTX_VALID(ctx); + + DUK_DDD(DUK_DDDPRINT("duk__call_prop_prep_stack, normalized_obj_index=%ld, nargs=%ld, stacktop=%ld", + (long) normalized_obj_index, (long) nargs, (long) duk_get_top(ctx))); + + /* [... key arg1 ... argN] */ + + /* duplicate key */ + duk_dup(ctx, -nargs - 1); /* Note: -nargs alone would fail for nargs == 0, this is OK */ + duk_get_prop(ctx, normalized_obj_index); + + DUK_DDD(DUK_DDDPRINT("func: %!T", (duk_tval *) duk_get_tval(ctx, -1))); + + /* [... key arg1 ... argN func] */ + + duk_replace(ctx, -nargs - 2); + + /* [... func arg1 ... argN] */ + + duk_dup(ctx, normalized_obj_index); + duk_insert(ctx, -nargs - 1); + + /* [... func this arg1 ... argN] */ +} + +DUK_EXTERNAL void duk_call(duk_context *ctx, duk_idx_t nargs) { + duk_hthread *thr = (duk_hthread *) ctx; + duk_small_uint_t call_flags; + duk_idx_t idx_func; + + DUK_ASSERT_CTX_VALID(ctx); + DUK_ASSERT(thr != NULL); + + idx_func = duk_get_top(ctx) - nargs - 1; + if (idx_func < 0 || nargs < 0) { + /* note that we can't reliably pop anything here */ + DUK_ERROR_API(thr, DUK_STR_INVALID_CALL_ARGS); + } + + /* XXX: awkward; we assume there is space for this, overwrite + * directly instead? + */ + duk_push_undefined(ctx); + duk_insert(ctx, idx_func + 1); + + call_flags = 0; /* not protected, respect reclimit, not constructor */ + + duk_handle_call_unprotected(thr, /* thread */ + nargs, /* num_stack_args */ + call_flags); /* call_flags */ +} + +DUK_EXTERNAL void duk_call_method(duk_context *ctx, duk_idx_t nargs) { + duk_hthread *thr = (duk_hthread *) ctx; + duk_small_uint_t call_flags; + duk_idx_t idx_func; + + DUK_ASSERT_CTX_VALID(ctx); + DUK_ASSERT(thr != NULL); + + idx_func = duk_get_top(ctx) - nargs - 2; /* must work for nargs <= 0 */ + if (idx_func < 0 || nargs < 0) { + /* note that we can't reliably pop anything here */ + DUK_ERROR_API(thr, DUK_STR_INVALID_CALL_ARGS); + } + + call_flags = 0; /* not protected, respect reclimit, not constructor */ + + duk_handle_call_unprotected(thr, /* thread */ + nargs, /* num_stack_args */ + call_flags); /* call_flags */ +} + +DUK_EXTERNAL void duk_call_prop(duk_context *ctx, duk_idx_t obj_index, duk_idx_t nargs) { + /* + * XXX: if duk_handle_call() took values through indices, this could be + * made much more sensible. However, duk_handle_call() needs to fudge + * the 'this' and 'func' values to handle bound function chains, which + * is now done "in-place", so this is not a trivial change. + */ + + DUK_ASSERT_CTX_VALID(ctx); + + obj_index = duk_require_normalize_index(ctx, obj_index); /* make absolute */ + + duk__call_prop_prep_stack(ctx, obj_index, nargs); + + duk_call_method(ctx, nargs); +} + +DUK_EXTERNAL duk_int_t duk_pcall(duk_context *ctx, duk_idx_t nargs) { + duk_hthread *thr = (duk_hthread *) ctx; + duk_small_uint_t call_flags; + duk_idx_t idx_func; + duk_int_t rc; + + DUK_ASSERT_CTX_VALID(ctx); + DUK_ASSERT(thr != NULL); + + idx_func = duk_get_top(ctx) - nargs - 1; /* must work for nargs <= 0 */ + if (idx_func < 0 || nargs < 0) { + /* We can't reliably pop anything here because the stack input + * shape is incorrect. So we throw an error; if the caller has + * no catch point for this, a fatal error will occur. Another + * alternative would be to just return an error. But then the + * stack would be in an unknown state which might cause some + * very hard to diagnose problems later on. Also note that even + * if we did not throw an error here, the underlying call handler + * might STILL throw an out-of-memory error or some other internal + * fatal error. + */ + DUK_ERROR_API(thr, DUK_STR_INVALID_CALL_ARGS); + return DUK_EXEC_ERROR; /* unreachable */ + } + + /* awkward; we assume there is space for this */ + duk_push_undefined(ctx); + duk_insert(ctx, idx_func + 1); + + call_flags = 0; /* respect reclimit, not constructor */ + + rc = duk_handle_call_protected(thr, /* thread */ + nargs, /* num_stack_args */ + call_flags); /* call_flags */ + + return rc; +} + +DUK_EXTERNAL duk_int_t duk_pcall_method(duk_context *ctx, duk_idx_t nargs) { + duk_hthread *thr = (duk_hthread *) ctx; + duk_small_uint_t call_flags; + duk_idx_t idx_func; + duk_int_t rc; + + DUK_ASSERT_CTX_VALID(ctx); + DUK_ASSERT(thr != NULL); + + idx_func = duk_get_top(ctx) - nargs - 2; /* must work for nargs <= 0 */ + if (idx_func < 0 || nargs < 0) { + /* See comments in duk_pcall(). */ + DUK_ERROR_API(thr, DUK_STR_INVALID_CALL_ARGS); + return DUK_EXEC_ERROR; /* unreachable */ + } + + call_flags = 0; /* respect reclimit, not constructor */ + + rc = duk_handle_call_protected(thr, /* thread */ + nargs, /* num_stack_args */ + call_flags); /* call_flags */ + + return rc; +} + +DUK_LOCAL duk_ret_t duk__pcall_prop_raw(duk_context *ctx) { + duk_idx_t obj_index; + duk_idx_t nargs; + + /* Get the original arguments. Note that obj_index may be a relative + * index so the stack must have the same top when we use it. + */ + + DUK_ASSERT_CTX_VALID(ctx); + + obj_index = (duk_idx_t) duk_get_int(ctx, -2); + nargs = (duk_idx_t) duk_get_int(ctx, -1); + duk_pop_2(ctx); + + obj_index = duk_require_normalize_index(ctx, obj_index); /* make absolute */ + duk__call_prop_prep_stack(ctx, obj_index, nargs); + duk_call_method(ctx, nargs); + return 1; +} + +DUK_EXTERNAL duk_int_t duk_pcall_prop(duk_context *ctx, duk_idx_t obj_index, duk_idx_t nargs) { + /* + * Must be careful to catch errors related to value stack manipulation + * and property lookup, not just the call itself. + */ + + DUK_ASSERT_CTX_VALID(ctx); + + duk_push_idx(ctx, obj_index); + duk_push_idx(ctx, nargs); + + /* Inputs: explicit arguments (nargs), +1 for key, +2 for obj_index/nargs passing. + * If the value stack does not contain enough args, an error is thrown; this matches + * behavior of the other protected call API functions. + */ + return duk_safe_call(ctx, duk__pcall_prop_raw, nargs + 1 + 2 /*nargs*/, 1 /*nrets*/); +} + +DUK_EXTERNAL duk_int_t duk_safe_call(duk_context *ctx, duk_safe_call_function func, duk_idx_t nargs, duk_idx_t nrets) { + duk_hthread *thr = (duk_hthread *) ctx; + duk_int_t rc; + + DUK_ASSERT_CTX_VALID(ctx); + DUK_ASSERT(thr != NULL); + + if (duk_get_top(ctx) < nargs || nrets < 0) { + /* See comments in duk_pcall(). */ + DUK_ERROR_API(thr, DUK_STR_INVALID_CALL_ARGS); + return DUK_EXEC_ERROR; /* unreachable */ + } + + rc = duk_handle_safe_call(thr, /* thread */ + func, /* func */ + nargs, /* num_stack_args */ + nrets); /* num_stack_res */ + + return rc; +} + +DUK_EXTERNAL void duk_new(duk_context *ctx, duk_idx_t nargs) { + /* + * There are two [[Construct]] operations in the specification: + * + * - E5 Section 13.2.2: for Function objects + * - E5 Section 15.3.4.5.2: for "bound" Function objects + * + * The chain of bound functions is resolved in Section 15.3.4.5.2, + * with arguments "piling up" until the [[Construct]] internal + * method is called on the final, actual Function object. Note + * that the "prototype" property is looked up *only* from the + * final object, *before* calling the constructor. + * + * Currently we follow the bound function chain here to get the + * "prototype" property value from the final, non-bound function. + * However, we let duk_handle_call() handle the argument "piling" + * when the constructor is called. The bound function chain is + * thus now processed twice. + * + * When constructing new Array instances, an unnecessary object is + * created and discarded now: the standard [[Construct]] creates an + * object, and calls the Array constructor. The Array constructor + * returns an Array instance, which is used as the result value for + * the "new" operation; the object created before the Array constructor + * call is discarded. + * + * This would be easy to fix, e.g. by knowing that the Array constructor + * will always create a replacement object and skip creating the fallback + * object in that case. + * + * Note: functions called via "new" need to know they are called as a + * constructor. For instance, built-in constructors behave differently + * depending on how they are called. + */ + + /* XXX: merge this with duk_js_call.c, as this function implements + * core semantics (or perhaps merge the two files altogether). + */ + + duk_hthread *thr = (duk_hthread *) ctx; + duk_hobject *proto; + duk_hobject *cons; + duk_hobject *fallback; + duk_idx_t idx_cons; + duk_small_uint_t call_flags; + + DUK_ASSERT_CTX_VALID(ctx); + + /* [... constructor arg1 ... argN] */ + + idx_cons = duk_require_normalize_index(ctx, -nargs - 1); + + DUK_DDD(DUK_DDDPRINT("top=%ld, nargs=%ld, idx_cons=%ld", + (long) duk_get_top(ctx), (long) nargs, (long) idx_cons)); + + /* XXX: code duplication */ + + /* + * Figure out the final, non-bound constructor, to get "prototype" + * property. + */ + + duk_dup(ctx, idx_cons); + for (;;) { + cons = duk_get_hobject(ctx, -1); + if (cons == NULL || !DUK_HOBJECT_HAS_CONSTRUCTABLE(cons)) { + /* Checking constructability from anything else than the + * initial constructor is not strictly necessary, but a + * nice sanity check. + */ + goto not_constructable; + } + if (!DUK_HOBJECT_HAS_BOUND(cons)) { + break; + } + duk_get_prop_stridx(ctx, -1, DUK_STRIDX_INT_TARGET); /* -> [... cons target] */ + duk_remove(ctx, -2); /* -> [... target] */ + } + DUK_ASSERT(cons != NULL && !DUK_HOBJECT_HAS_BOUND(cons)); + + /* [... constructor arg1 ... argN final_cons] */ + + /* + * Create "fallback" object to be used as the object instance, + * unless the constructor returns a replacement value. + * Its internal prototype needs to be set based on "prototype" + * property of the constructor. + */ + + duk_push_object(ctx); /* class Object, extensible */ + + /* [... constructor arg1 ... argN final_cons fallback] */ + + duk_get_prop_stridx(ctx, -2, DUK_STRIDX_PROTOTYPE); + proto = duk_get_hobject(ctx, -1); + if (!proto) { + DUK_DDD(DUK_DDDPRINT("constructor has no 'prototype' property, or value not an object " + "-> leave standard Object prototype as fallback prototype")); + } else { + DUK_DDD(DUK_DDDPRINT("constructor has 'prototype' property with object value " + "-> set fallback prototype to that value: %!iO", (duk_heaphdr *) proto)); + fallback = duk_get_hobject(ctx, -2); + DUK_ASSERT(fallback != NULL); + DUK_HOBJECT_SET_PROTOTYPE_UPDREF(thr, fallback, proto); + } + duk_pop(ctx); + + /* [... constructor arg1 ... argN final_cons fallback] */ + + /* + * Manipulate callstack for the call. + */ + + duk_dup_top(ctx); + duk_insert(ctx, idx_cons + 1); /* use fallback as 'this' value */ + duk_insert(ctx, idx_cons); /* also stash it before constructor, + * in case we need it (as the fallback value) + */ + duk_pop(ctx); /* pop final_cons */ + + + /* [... fallback constructor fallback(this) arg1 ... argN]; + * Note: idx_cons points to first 'fallback', not 'constructor'. + */ + + DUK_DDD(DUK_DDDPRINT("before call, idx_cons+1 (constructor) -> %!T, idx_cons+2 (fallback/this) -> %!T, " + "nargs=%ld, top=%ld", + (duk_tval *) duk_get_tval(ctx, idx_cons + 1), + (duk_tval *) duk_get_tval(ctx, idx_cons + 2), + (long) nargs, + (long) duk_get_top(ctx))); + + /* + * Call the constructor function (called in "constructor mode"). + */ + + call_flags = DUK_CALL_FLAG_CONSTRUCTOR_CALL; /* not protected, respect reclimit, is a constructor call */ + + duk_handle_call_unprotected(thr, /* thread */ + nargs, /* num_stack_args */ + call_flags); /* call_flags */ + + /* [... fallback retval] */ + + DUK_DDD(DUK_DDDPRINT("constructor call finished, fallback=%!iT, retval=%!iT", + (duk_tval *) duk_get_tval(ctx, -2), + (duk_tval *) duk_get_tval(ctx, -1))); + + /* + * Determine whether to use the constructor return value as the created + * object instance or not. + */ + + if (duk_is_object(ctx, -1)) { + duk_remove(ctx, -2); + } else { + duk_pop(ctx); + } + + /* + * Augment created errors upon creation (not when they are thrown or + * rethrown). __FILE__ and __LINE__ are not desirable here; the call + * stack reflects the caller which is correct. + */ + +#ifdef DUK_USE_AUGMENT_ERROR_CREATE + duk_hthread_sync_currpc(thr); + duk_err_augment_error_create(thr, thr, NULL, 0, 1 /*noblame_fileline*/); +#endif + + /* [... retval] */ + + return; + + not_constructable: + DUK_ERROR_TYPE(thr, DUK_STR_NOT_CONSTRUCTABLE); +} + +DUK_LOCAL duk_ret_t duk__pnew_helper(duk_context *ctx) { + duk_uint_t nargs; + + nargs = duk_to_uint(ctx, -1); + duk_pop(ctx); + + duk_new(ctx, nargs); + return 1; +} + +DUK_EXTERNAL duk_int_t duk_pnew(duk_context *ctx, duk_idx_t nargs) { + duk_int_t rc; + + DUK_ASSERT_CTX_VALID(ctx); + + /* For now, just use duk_safe_call() to wrap duk_new(). We can't + * simply use a protected duk_handle_call() because there's post + * processing which might throw. It should be possible to ensure + * the post processing never throws (except in internal errors and + * out of memory etc which are always allowed) and then remove this + * wrapper. + */ + + duk_push_uint(ctx, nargs); + rc = duk_safe_call(ctx, duk__pnew_helper, nargs + 2 /*nargs*/, 1 /*nrets*/); + return rc; +} + +DUK_EXTERNAL duk_bool_t duk_is_constructor_call(duk_context *ctx) { + duk_hthread *thr = (duk_hthread *) ctx; + duk_activation *act; + + DUK_ASSERT_CTX_VALID(ctx); + DUK_ASSERT(thr != NULL); + DUK_ASSERT_DISABLE(thr->callstack_top >= 0); + + act = duk_hthread_get_current_activation(thr); + DUK_ASSERT(act != NULL); /* because callstack_top > 0 */ + return ((act->flags & DUK_ACT_FLAG_CONSTRUCT) != 0 ? 1 : 0); +} + +DUK_EXTERNAL duk_bool_t duk_is_strict_call(duk_context *ctx) { + duk_hthread *thr = (duk_hthread *) ctx; + duk_activation *act; + + /* For user code this could just return 1 (strict) always + * because all Duktape/C functions are considered strict, + * and strict is also the default when nothing is running. + * However, Duktape may call this function internally when + * the current activation is an Ecmascript function, so + * this cannot be replaced by a 'return 1' without fixing + * the internal call sites. + */ + + DUK_ASSERT_CTX_VALID(ctx); + DUK_ASSERT(thr != NULL); + DUK_ASSERT_DISABLE(thr->callstack_top >= 0); + + act = duk_hthread_get_current_activation(thr); + if (act == NULL) { + /* Strict by default. */ + return 1; + } + return ((act->flags & DUK_ACT_FLAG_STRICT) != 0 ? 1 : 0); +} + +/* + * Duktape/C function magic + */ + +DUK_EXTERNAL duk_int_t duk_get_current_magic(duk_context *ctx) { + duk_hthread *thr = (duk_hthread *) ctx; + duk_activation *act; + duk_hobject *func; + + DUK_ASSERT_CTX_VALID(ctx); + DUK_ASSERT(thr != NULL); + DUK_ASSERT_DISABLE(thr->callstack_top >= 0); + + act = duk_hthread_get_current_activation(thr); + if (act) { + func = DUK_ACT_GET_FUNC(act); + if (!func) { + duk_tval *tv = &act->tv_func; + duk_small_uint_t lf_flags; + lf_flags = DUK_TVAL_GET_LIGHTFUNC_FLAGS(tv); + return (duk_int_t) DUK_LFUNC_FLAGS_GET_MAGIC(lf_flags); + } + DUK_ASSERT(func != NULL); + + if (DUK_HOBJECT_IS_NATIVEFUNCTION(func)) { + duk_hnativefunction *nf = (duk_hnativefunction *) func; + return (duk_int_t) nf->magic; + } + } + return 0; +} + +DUK_EXTERNAL duk_int_t duk_get_magic(duk_context *ctx, duk_idx_t index) { + duk_hthread *thr = (duk_hthread *) ctx; + duk_tval *tv; + duk_hobject *h; + + DUK_ASSERT_CTX_VALID(ctx); + + tv = duk_require_tval(ctx, index); + if (DUK_TVAL_IS_OBJECT(tv)) { + h = DUK_TVAL_GET_OBJECT(tv); + DUK_ASSERT(h != NULL); + if (!DUK_HOBJECT_HAS_NATIVEFUNCTION(h)) { + goto type_error; + } + return (duk_int_t) ((duk_hnativefunction *) h)->magic; + } else if (DUK_TVAL_IS_LIGHTFUNC(tv)) { + duk_small_uint_t lf_flags = DUK_TVAL_GET_LIGHTFUNC_FLAGS(tv); + return (duk_int_t) DUK_LFUNC_FLAGS_GET_MAGIC(lf_flags); + } + + /* fall through */ + type_error: + DUK_ERROR_TYPE(thr, DUK_STR_UNEXPECTED_TYPE); + return 0; +} + +DUK_EXTERNAL void duk_set_magic(duk_context *ctx, duk_idx_t index, duk_int_t magic) { + duk_hnativefunction *nf; + + DUK_ASSERT_CTX_VALID(ctx); + + nf = duk_require_hnativefunction(ctx, index); + DUK_ASSERT(nf != NULL); + nf->magic = (duk_int16_t) magic; +} +#line 1 "duk_api_codec.c" +/* + * Encoding and decoding basic formats: hex, base64. + * + * These are in-place operations which may allow an optimized implementation. + * + * Base-64: https://tools.ietf.org/html/rfc4648#section-4 + */ + +/* include removed: duk_internal.h */ + +/* Shared handling for encode/decode argument. Fast path handling for + * buffer and string values because they're the most common. In particular, + * avoid creating a temporary string or buffer when possible. + */ +DUK_LOCAL const duk_uint8_t *duk__prep_codec_arg(duk_context *ctx, duk_idx_t index, duk_size_t *out_len) { + DUK_ASSERT(duk_is_valid_index(ctx, index)); /* checked by caller */ + if (duk_is_buffer(ctx, index)) { + return (const duk_uint8_t *) duk_get_buffer(ctx, index, out_len); + } else { + return (const duk_uint8_t *) duk_to_lstring(ctx, index, out_len); + } +} + +#if defined(DUK_USE_BASE64_FASTPATH) +DUK_LOCAL void duk__base64_encode_helper(const duk_uint8_t *src, duk_size_t srclen, duk_uint8_t *dst) { + duk_uint_t t; + duk_size_t n_full, n_full3, n_final; + const duk_uint8_t *src_end_fast; + + n_full = srclen / 3; /* full 3-byte -> 4-char conversions */ + n_full3 = n_full * 3; + n_final = srclen - n_full3; + DUK_ASSERT_DISABLE(n_final >= 0); + DUK_ASSERT(n_final <= 2); + + src_end_fast = src + n_full3; + while (DUK_UNLIKELY(src != src_end_fast)) { + t = (duk_uint_t) (*src++); + t = (t << 8) + (duk_uint_t) (*src++); + t = (t << 8) + (duk_uint_t) (*src++); + + *dst++ = duk_base64_enctab[t >> 18]; + *dst++ = duk_base64_enctab[(t >> 12) & 0x3f]; + *dst++ = duk_base64_enctab[(t >> 6) & 0x3f]; + *dst++ = duk_base64_enctab[t & 0x3f]; + +#if 0 /* Tested: not faster on x64 */ + /* aaaaaabb bbbbcccc ccdddddd */ + dst[0] = duk_base64_enctab[(src[0] >> 2) & 0x3f]; + dst[1] = duk_base64_enctab[((src[0] << 4) & 0x30) | ((src[1] >> 4) & 0x0f)]; + dst[2] = duk_base64_enctab[((src[1] << 2) & 0x3f) | ((src[2] >> 6) & 0x03)]; + dst[3] = duk_base64_enctab[src[2] & 0x3f]; + src += 3; dst += 4; +#endif + } + + switch (n_final) { + /* case 0: nop */ + case 1: { + /* XX== */ + t = (duk_uint_t) (*src++); + *dst++ = duk_base64_enctab[t >> 2]; /* XXXXXX-- */ + *dst++ = duk_base64_enctab[(t << 4) & 0x3f]; /* ------XX */ + *dst++ = DUK_ASC_EQUALS; + *dst++ = DUK_ASC_EQUALS; + break; + } + case 2: { + /* XXX= */ + t = (duk_uint_t) (*src++); + t = (t << 8) + (duk_uint_t) (*src++); + *dst++ = duk_base64_enctab[t >> 10]; /* XXXXXX-- -------- */ + *dst++ = duk_base64_enctab[(t >> 4) & 0x3f]; /* ------XX XXXX---- */ + *dst++ = duk_base64_enctab[(t << 2) & 0x3f]; /* -------- ----XXXX */ + *dst++ = DUK_ASC_EQUALS; + break; + } + } +} +#else /* DUK_USE_BASE64_FASTPATH */ +DUK_LOCAL void duk__base64_encode_helper(const duk_uint8_t *src, duk_size_t srclen, duk_uint8_t *dst) { + duk_small_uint_t i, snip; + duk_uint_t t; + duk_uint_fast8_t x, y; + const duk_uint8_t *src_end; + + src_end = src + srclen; + + while (src < src_end) { + /* read 3 bytes into 't', padded by zero */ + snip = 4; + t = 0; + for (i = 0; i < 3; i++) { + t = t << 8; + if (src >= src_end) { + snip--; + } else { + t += (duk_uint_t) (*src++); + } + } + + /* + * Missing bytes snip base64 example + * 0 4 XXXX + * 1 3 XXX= + * 2 2 XX== + */ + + DUK_ASSERT(snip >= 2 && snip <= 4); + + for (i = 0; i < 4; i++) { + x = (duk_uint_fast8_t) ((t >> 18) & 0x3f); + t = t << 6; + + /* A straightforward 64-byte lookup would be faster + * and cleaner, but this is shorter. + */ + if (i >= snip) { + y = '='; + } else if (x <= 25) { + y = x + 'A'; + } else if (x <= 51) { + y = x - 26 + 'a'; + } else if (x <= 61) { + y = x - 52 + '0'; + } else if (x == 62) { + y = '+'; + } else { + y = '/'; + } + + *dst++ = (duk_uint8_t) y; + } + } +} +#endif /* DUK_USE_BASE64_FASTPATH */ + +#if defined(DUK_USE_BASE64_FASTPATH) +DUK_LOCAL duk_bool_t duk__base64_decode_helper(const duk_uint8_t *src, duk_size_t srclen, duk_uint8_t *dst, duk_uint8_t **out_dst_final) { + duk_int_t x; + duk_int_t t; + duk_small_uint_t n_equal; + duk_small_uint_t n_chars; + const duk_uint8_t *src_end; + const duk_uint8_t *src_end_safe; + + src_end = src + srclen; + src_end_safe = src_end - 4; /* if 'src < src_end_safe', safe to read 4 bytes */ + + /* Innermost fast path processes 4 valid base-64 characters at a time + * but bails out on whitespace, padding chars ('=') and invalid chars. + * Once the slow path segment has been processed, we return to the + * inner fast path again. This handles e.g. base64 with newlines + * reasonably well because the majority of a line is in the fast path. + */ + for (;;) { + /* Fast path, handle units with just actual encoding characters. */ + + while (src <= src_end_safe) { + /* The lookup byte is intentionally sign extended to (at least) + * 32 bits and then ORed. This ensures that is at least 1 byte + * is negative, the highest bit of 't' will be set at the end + * and we don't need to check every byte. + */ + DUK_DDD(DUK_DDDPRINT("fast loop: src=%p, src_end_safe=%p, src_end=%p", + (const void *) src, (const void *) src_end_safe, (const void *) src_end)); + + t = (duk_int_t) duk_base64_dectab[*src++]; + t = (t << 6) | (duk_int_t) duk_base64_dectab[*src++]; + t = (t << 6) | (duk_int_t) duk_base64_dectab[*src++]; + t = (t << 6) | (duk_int_t) duk_base64_dectab[*src++]; + + if (DUK_UNLIKELY(t < 0)) { + DUK_DDD(DUK_DDDPRINT("fast loop unit was not clean, process one slow path unit")); + src -= 4; + break; + } + + DUK_ASSERT(t <= 0xffffffL); + DUK_ASSERT((t >> 24) == 0); + *dst++ = (duk_uint8_t) (t >> 16); + *dst++ = (duk_uint8_t) ((t >> 8) & 0xff); + *dst++ = (duk_uint8_t) (t & 0xff); + } + + /* Handle one slow path unit (or finish if we're done). */ + + n_equal = 0; + n_chars = 0; + t = 0; + for (;;) { + DUK_DDD(DUK_DDDPRINT("slow loop: src=%p, src_end=%p, n_chars=%ld, n_equal=%ld, t=%ld", + (const void *) src, (const void *) src_end, (long) n_chars, (long) n_equal, (long) t)); + + if (DUK_UNLIKELY(src >= src_end)) { + goto done; /* two level break */ + } + + x = duk_base64_dectab[*src++]; + if (DUK_UNLIKELY(x < 0)) { + if (x == -2) { + continue; /* allowed ascii whitespace */ + } else if (x == -3) { + n_equal++; + t <<= 6; + } else { + DUK_ASSERT(x == -1); + goto error; + } + } else { + DUK_ASSERT(x >= 0 && x <= 63); + if (n_equal > 0) { + /* Don't allow actual chars after equal sign. */ + goto error; + } + t = (t << 6) + x; + } + + if (DUK_UNLIKELY(n_chars == 3)) { + /* Emit 3 bytes and backtrack if there was padding. There's + * always space for the whole 3 bytes so no check needed. + */ + DUK_ASSERT(t <= 0xffffffL); + DUK_ASSERT((t >> 24) == 0); + *dst++ = (duk_uint8_t) (t >> 16); + *dst++ = (duk_uint8_t) ((t >> 8) & 0xff); + *dst++ = (duk_uint8_t) (t & 0xff); + + if (DUK_UNLIKELY(n_equal > 0)) { + DUK_ASSERT(n_equal <= 4); + + /* There may be whitespace between the equal signs. */ + if (n_equal == 1) { + /* XXX= */ + dst -= 1; + } else if (n_equal == 2) { + /* XX== */ + dst -= 2; + } else { + goto error; /* invalid padding */ + } + + /* Continue parsing after padding, allows concatenated, + * padded base64. + */ + } + break; /* back to fast loop */ + } else { + n_chars++; + } + } + } + done: + DUK_DDD(DUK_DDDPRINT("done; src=%p, src_end=%p, n_chars=%ld", + (const void *) src, (const void *) src_end, (long) n_chars)); + + DUK_ASSERT(src == src_end); + + if (n_chars != 0) { + /* Here we'd have the option of decoding unpadded base64 + * (e.g. "xxxxyy" instead of "xxxxyy==". Currently not + * accepted. + */ + goto error; + } + + *out_dst_final = dst; + return 1; + + error: + return 0; +} +#else /* DUK_USE_BASE64_FASTPATH */ +DUK_LOCAL duk_bool_t duk__base64_decode_helper(const duk_uint8_t *src, duk_size_t srclen, duk_uint8_t *dst, duk_uint8_t **out_dst_final) { + duk_uint_t t; + duk_uint_fast8_t x, y; + duk_small_uint_t group_idx; + duk_small_uint_t n_equal; + const duk_uint8_t *src_end; + + src_end = src + srclen; + t = 0; + group_idx = 0; + n_equal = 0; + + while (src < src_end) { + x = *src++; + + if (x >= 'A' && x <= 'Z') { + y = x - 'A' + 0; + } else if (x >= 'a' && x <= 'z') { + y = x - 'a' + 26; + } else if (x >= '0' && x <= '9') { + y = x - '0' + 52; + } else if (x == '+') { + y = 62; + } else if (x == '/') { + y = 63; + } else if (x == '=') { + /* We don't check the zero padding bytes here right now + * (that they're actually zero). This seems to be common + * behavior for base-64 decoders. + */ + + n_equal++; + t <<= 6; /* shift in zeroes */ + goto skip_add; + } else if (x == 0x09 || x == 0x0a || x == 0x0d || x == 0x20) { + /* allow basic ASCII whitespace */ + continue; + } else { + goto error; + } + + if (n_equal > 0) { + /* Don't allow mixed padding and actual chars. */ + goto error; + } + t = (t << 6) + y; + skip_add: + + if (group_idx == 3) { + /* output 3 bytes from 't' */ + *dst++ = (duk_uint8_t) ((t >> 16) & 0xff); + *dst++ = (duk_uint8_t) ((t >> 8) & 0xff); + *dst++ = (duk_uint8_t) (t & 0xff); + + if (DUK_UNLIKELY(n_equal > 0)) { + /* Backtrack. */ + DUK_ASSERT(n_equal <= 4); + if (n_equal == 1) { + dst -= 1; + } else if (n_equal == 2) { + dst -= 2; + } else { + goto error; /* invalid padding */ + } + + /* Here we can choose either to end parsing and ignore + * whatever follows, or to continue parsing in case + * multiple (possibly padded) base64 strings have been + * concatenated. Currently, keep on parsing. + */ + n_equal = 0; + } + + t = 0; + group_idx = 0; + } else { + group_idx++; + } + } + + if (group_idx != 0) { + /* Here we'd have the option of decoding unpadded base64 + * (e.g. "xxxxyy" instead of "xxxxyy==". Currently not + * accepted. + */ + goto error; + } + + *out_dst_final = dst; + return 1; + + error: + return 0; +} +#endif /* DUK_USE_BASE64_FASTPATH */ + +DUK_EXTERNAL const char *duk_base64_encode(duk_context *ctx, duk_idx_t index) { + duk_hthread *thr = (duk_hthread *) ctx; + const duk_uint8_t *src; + duk_size_t srclen; + duk_size_t dstlen; + duk_uint8_t *dst; + const char *ret; + + DUK_ASSERT_CTX_VALID(ctx); + + /* XXX: optimize for string inputs: no need to coerce to a buffer + * which makes a copy of the input. + */ + + index = duk_require_normalize_index(ctx, index); + src = duk__prep_codec_arg(ctx, index, &srclen); + /* Note: for srclen=0, src may be NULL */ + + /* Computation must not wrap; this limit works for 32-bit size_t: + * >>> srclen = 3221225469 + * >>> '%x' % ((srclen + 2) / 3 * 4) + * 'fffffffc' + */ + if (srclen > 3221225469UL) { + goto type_error; + } + dstlen = (srclen + 2) / 3 * 4; + dst = (duk_uint8_t *) duk_push_fixed_buffer(ctx, dstlen); + + duk__base64_encode_helper((const duk_uint8_t *) src, srclen, dst); + + ret = duk_to_string(ctx, -1); + duk_replace(ctx, index); + return ret; + + type_error: + DUK_ERROR_TYPE(thr, DUK_STR_ENCODE_FAILED); + return NULL; /* never here */ +} + +DUK_EXTERNAL void duk_base64_decode(duk_context *ctx, duk_idx_t index) { + duk_hthread *thr = (duk_hthread *) ctx; + const duk_uint8_t *src; + duk_size_t srclen; + duk_size_t dstlen; + duk_uint8_t *dst; + duk_uint8_t *dst_final; + duk_bool_t retval; + + DUK_ASSERT_CTX_VALID(ctx); + + /* XXX: optimize for buffer inputs: no need to coerce to a string + * which causes an unnecessary interning. + */ + + index = duk_require_normalize_index(ctx, index); + src = duk__prep_codec_arg(ctx, index, &srclen); + + /* Computation must not wrap, only srclen + 3 is at risk of + * wrapping because after that the number gets smaller. + * This limit works for 32-bit size_t: + * 0x100000000 - 3 - 1 = 4294967292 + */ + if (srclen > 4294967292UL) { + goto type_error; + } + dstlen = (srclen + 3) / 4 * 3; /* upper limit, assuming no whitespace etc */ + dst = (duk_uint8_t *) duk_push_dynamic_buffer(ctx, dstlen); + /* Note: for dstlen=0, dst may be NULL */ + + retval = duk__base64_decode_helper((const duk_uint8_t *) src, srclen, dst, &dst_final); + if (!retval) { + goto type_error; + } + + /* XXX: convert to fixed buffer? */ + (void) duk_resize_buffer(ctx, -1, (duk_size_t) (dst_final - dst)); + duk_replace(ctx, index); + return; + + type_error: + DUK_ERROR_TYPE(thr, DUK_STR_DECODE_FAILED); +} + +DUK_EXTERNAL const char *duk_hex_encode(duk_context *ctx, duk_idx_t index) { + const duk_uint8_t *inp; + duk_size_t len; + duk_size_t i; + duk_uint8_t *buf; + const char *ret; +#if defined(DUK_USE_HEX_FASTPATH) + duk_size_t len_safe; + duk_uint16_t *p16; +#endif + + DUK_ASSERT_CTX_VALID(ctx); + + index = duk_require_normalize_index(ctx, index); + inp = duk__prep_codec_arg(ctx, index, &len); + DUK_ASSERT(inp != NULL || len == 0); + + /* Fixed buffer, no zeroing because we'll fill all the data. */ + buf = (duk_uint8_t *) duk_push_buffer_raw(ctx, len * 2, DUK_BUF_FLAG_NOZERO /*flags*/); + DUK_ASSERT(buf != NULL); + +#if defined(DUK_USE_HEX_FASTPATH) + DUK_ASSERT((((duk_size_t) buf) & 0x01U) == 0); /* pointer is aligned, guaranteed for fixed buffer */ + p16 = (duk_uint16_t *) (void *) buf; + len_safe = len & ~0x03U; + for (i = 0; i < len_safe; i += 4) { + p16[0] = duk_hex_enctab[inp[i]]; + p16[1] = duk_hex_enctab[inp[i + 1]]; + p16[2] = duk_hex_enctab[inp[i + 2]]; + p16[3] = duk_hex_enctab[inp[i + 3]]; + p16 += 4; + } + for (; i < len; i++) { + *p16++ = duk_hex_enctab[inp[i]]; + } +#else /* DUK_USE_HEX_FASTPATH */ + for (i = 0; i < len; i++) { + duk_small_uint_t t; + t = (duk_small_uint_t) inp[i]; + buf[i*2 + 0] = duk_lc_digits[t >> 4]; + buf[i*2 + 1] = duk_lc_digits[t & 0x0f]; + } +#endif /* DUK_USE_HEX_FASTPATH */ + + /* XXX: Using a string return value forces a string intern which is + * not always necessary. As a rough performance measure, hex encode + * time for tests/perf/test-hex-encode.js dropped from ~35s to ~15s + * without string coercion. Change to returning a buffer and let the + * caller coerce to string if necessary? + */ + + ret = duk_to_string(ctx, -1); + duk_replace(ctx, index); + return ret; +} + +DUK_EXTERNAL void duk_hex_decode(duk_context *ctx, duk_idx_t index) { + duk_hthread *thr = (duk_hthread *) ctx; + const duk_uint8_t *inp; + duk_size_t len; + duk_size_t i; + duk_int_t t; + duk_uint8_t *buf; +#if defined(DUK_USE_HEX_FASTPATH) + duk_int_t chk; + duk_uint8_t *p; + duk_size_t len_safe; +#endif + + DUK_ASSERT_CTX_VALID(ctx); + + index = duk_require_normalize_index(ctx, index); + inp = duk__prep_codec_arg(ctx, index, &len); + DUK_ASSERT(inp != NULL || len == 0); + + if (len & 0x01) { + goto type_error; + } + + /* Fixed buffer, no zeroing because we'll fill all the data. */ + buf = (duk_uint8_t *) duk_push_buffer_raw(ctx, len / 2, DUK_BUF_FLAG_NOZERO /*flags*/); + DUK_ASSERT(buf != NULL); + +#if defined(DUK_USE_HEX_FASTPATH) + p = buf; + len_safe = len & ~0x07U; + for (i = 0; i < len_safe; i += 8) { + t = ((duk_int_t) duk_hex_dectab_shift4[inp[i]]) | + ((duk_int_t) duk_hex_dectab[inp[i + 1]]); + chk = t; + p[0] = (duk_uint8_t) t; + t = ((duk_int_t) duk_hex_dectab_shift4[inp[i + 2]]) | + ((duk_int_t) duk_hex_dectab[inp[i + 3]]); + chk |= t; + p[1] = (duk_uint8_t) t; + t = ((duk_int_t) duk_hex_dectab_shift4[inp[i + 4]]) | + ((duk_int_t) duk_hex_dectab[inp[i + 5]]); + chk |= t; + p[2] = (duk_uint8_t) t; + t = ((duk_int_t) duk_hex_dectab_shift4[inp[i + 6]]) | + ((duk_int_t) duk_hex_dectab[inp[i + 7]]); + chk |= t; + p[3] = (duk_uint8_t) t; + p += 4; + + /* Check if any lookup above had a negative result. */ + if (DUK_UNLIKELY(chk < 0)) { + goto type_error; + } + } + for (; i < len; i += 2) { + t = (((duk_int_t) duk_hex_dectab[inp[i]]) << 4) | + ((duk_int_t) duk_hex_dectab[inp[i + 1]]); + if (DUK_UNLIKELY(t < 0)) { + goto type_error; + } + *p++ = (duk_uint8_t) t; + } +#else /* DUK_USE_HEX_FASTPATH */ + for (i = 0; i < len; i += 2) { + /* For invalid characters the value -1 gets extended to + * at least 16 bits. If either nybble is invalid, the + * resulting 't' will be < 0. + */ + t = (((duk_int_t) duk_hex_dectab[inp[i]]) << 4) | + ((duk_int_t) duk_hex_dectab[inp[i + 1]]); + if (DUK_UNLIKELY(t < 0)) { + goto type_error; + } + buf[i >> 1] = (duk_uint8_t) t; + } +#endif /* DUK_USE_HEX_FASTPATH */ + + duk_replace(ctx, index); + return; + + type_error: + DUK_ERROR_TYPE(thr, DUK_STR_DECODE_FAILED); +} + +DUK_EXTERNAL const char *duk_json_encode(duk_context *ctx, duk_idx_t index) { +#ifdef DUK_USE_ASSERTIONS + duk_idx_t top_at_entry; +#endif + const char *ret; + + DUK_ASSERT_CTX_VALID(ctx); +#ifdef DUK_USE_ASSERTIONS + top_at_entry = duk_get_top(ctx); +#endif + + index = duk_require_normalize_index(ctx, index); + duk_bi_json_stringify_helper(ctx, + index /*idx_value*/, + DUK_INVALID_INDEX /*idx_replacer*/, + DUK_INVALID_INDEX /*idx_space*/, + 0 /*flags*/); + DUK_ASSERT(duk_is_string(ctx, -1)); + duk_replace(ctx, index); + ret = duk_get_string(ctx, index); + + DUK_ASSERT(duk_get_top(ctx) == top_at_entry); + + return ret; +} + +DUK_EXTERNAL void duk_json_decode(duk_context *ctx, duk_idx_t index) { +#ifdef DUK_USE_ASSERTIONS + duk_idx_t top_at_entry; +#endif + + DUK_ASSERT_CTX_VALID(ctx); +#ifdef DUK_USE_ASSERTIONS + top_at_entry = duk_get_top(ctx); +#endif + + index = duk_require_normalize_index(ctx, index); + duk_bi_json_parse_helper(ctx, + index /*idx_value*/, + DUK_INVALID_INDEX /*idx_reviver*/, + 0 /*flags*/); + duk_replace(ctx, index); + + DUK_ASSERT(duk_get_top(ctx) == top_at_entry); +} +#line 1 "duk_api_compile.c" +/* + * Compilation and evaluation + */ + +/* include removed: duk_internal.h */ + +typedef struct duk__compile_raw_args duk__compile_raw_args; +struct duk__compile_raw_args { + duk_size_t src_length; /* should be first on 64-bit platforms */ + const duk_uint8_t *src_buffer; + duk_uint_t flags; +}; + +/* Eval is just a wrapper now. */ +DUK_EXTERNAL duk_int_t duk_eval_raw(duk_context *ctx, const char *src_buffer, duk_size_t src_length, duk_uint_t flags) { + duk_uint_t comp_flags; + duk_int_t rc; + + DUK_ASSERT_CTX_VALID(ctx); + + /* Note: strictness is *not* inherited from the current Duktape/C. + * This would be confusing because the current strictness state + * depends on whether we're running inside a Duktape/C activation + * (= strict mode) or outside of any activation (= non-strict mode). + * See tests/api/test-eval-strictness.c for more discussion. + */ + + /* [ ... source? filename? ] (depends on flags) */ + + comp_flags = flags; + comp_flags |= DUK_COMPILE_EVAL; + rc = duk_compile_raw(ctx, src_buffer, src_length, comp_flags); /* may be safe, or non-safe depending on flags */ + + /* [ ... closure/error ] */ + + if (rc != DUK_EXEC_SUCCESS) { + rc = DUK_EXEC_ERROR; + goto got_rc; + } + + duk_push_global_object(ctx); /* explicit 'this' binding, see GH-164 */ + + if (flags & DUK_COMPILE_SAFE) { + rc = duk_pcall_method(ctx, 0); + } else { + duk_call_method(ctx, 0); + rc = DUK_EXEC_SUCCESS; + } + + /* [ ... result/error ] */ + + got_rc: + if (flags & DUK_COMPILE_NORESULT) { + duk_pop(ctx); + } + + return rc; +} + +/* Helper which can be called both directly and with duk_safe_call(). */ +DUK_LOCAL duk_ret_t duk__do_compile(duk_context *ctx) { + duk_hthread *thr = (duk_hthread *) ctx; + duk__compile_raw_args *comp_args; + duk_uint_t flags; + duk_small_uint_t comp_flags; + duk_hcompiledfunction *h_templ; + + DUK_ASSERT_CTX_VALID(ctx); + + /* Note: strictness is not inherited from the current Duktape/C + * context. Otherwise it would not be possible to compile + * non-strict code inside a Duktape/C activation (which is + * always strict now). See tests/api/test-eval-strictness.c + * for discussion. + */ + + /* [ ... source? filename? &comp_args ] (depends on flags) */ + + comp_args = (duk__compile_raw_args *) duk_require_pointer(ctx, -1); + flags = comp_args->flags; + duk_pop(ctx); + + /* [ ... source? filename? ] */ + + if (flags & DUK_COMPILE_NOFILENAME) { + /* Automatic filename: 'eval' or 'input'. */ + duk_push_hstring_stridx(ctx, (flags & DUK_COMPILE_EVAL) ? DUK_STRIDX_EVAL : DUK_STRIDX_INPUT); + } + + /* [ ... source? filename ] */ + + if (!comp_args->src_buffer) { + duk_hstring *h_sourcecode; + + h_sourcecode = duk_get_hstring(ctx, -2); + if ((flags & DUK_COMPILE_NOSOURCE) || /* args incorrect */ + (h_sourcecode == NULL)) { /* e.g. duk_push_string_file_raw() pushed undefined */ + /* XXX: when this error is caused by a nonexistent + * file given to duk_peval_file() or similar, the + * error message is not the best possible. + */ + DUK_ERROR_API(thr, DUK_STR_NO_SOURCECODE); + } + DUK_ASSERT(h_sourcecode != NULL); + comp_args->src_buffer = (const duk_uint8_t *) DUK_HSTRING_GET_DATA(h_sourcecode); + comp_args->src_length = (duk_size_t) DUK_HSTRING_GET_BYTELEN(h_sourcecode); + } + DUK_ASSERT(comp_args->src_buffer != NULL); + + /* XXX: unnecessary translation of flags */ + comp_flags = 0; + if (flags & DUK_COMPILE_EVAL) { + comp_flags |= DUK_JS_COMPILE_FLAG_EVAL; + } + if (flags & DUK_COMPILE_FUNCTION) { + comp_flags |= DUK_JS_COMPILE_FLAG_EVAL | + DUK_JS_COMPILE_FLAG_FUNCEXPR; + } + if (flags & DUK_COMPILE_STRICT) { + comp_flags |= DUK_JS_COMPILE_FLAG_STRICT; + } + + /* [ ... source? filename ] */ + + duk_js_compile(thr, comp_args->src_buffer, comp_args->src_length, comp_flags); + + /* [ ... source? func_template ] */ + + if (flags & DUK_COMPILE_NOSOURCE) { + ; + } else { + duk_remove(ctx, -2); + } + + /* [ ... func_template ] */ + + h_templ = (duk_hcompiledfunction *) duk_get_hobject(ctx, -1); + DUK_ASSERT(h_templ != NULL); + duk_js_push_closure(thr, + h_templ, + thr->builtins[DUK_BIDX_GLOBAL_ENV], + thr->builtins[DUK_BIDX_GLOBAL_ENV], + 1 /*add_auto_proto*/); + duk_remove(ctx, -2); /* -> [ ... closure ] */ + + /* [ ... closure ] */ + + return 1; +} + +DUK_EXTERNAL duk_int_t duk_compile_raw(duk_context *ctx, const char *src_buffer, duk_size_t src_length, duk_uint_t flags) { + duk__compile_raw_args comp_args_alloc; + duk__compile_raw_args *comp_args = &comp_args_alloc; + + DUK_ASSERT_CTX_VALID(ctx); + + if ((flags & DUK_COMPILE_STRLEN) && (src_buffer != NULL)) { + /* String length is computed here to avoid multiple evaluation + * of a macro argument in the calling side. + */ + src_length = DUK_STRLEN(src_buffer); + } + + comp_args->src_buffer = (const duk_uint8_t *) src_buffer; + comp_args->src_length = src_length; + comp_args->flags = flags; + duk_push_pointer(ctx, (void *) comp_args); + + /* [ ... source? filename? &comp_args ] (depends on flags) */ + + if (flags & DUK_COMPILE_SAFE) { + duk_int_t rc; + duk_int_t nargs; + duk_int_t nrets = 1; + + /* Arguments can be: [ source? filename? &comp_args] so that + * nargs is 1 to 3. Call site encodes the correct nargs count + * directly into flags. + */ + nargs = flags & 0x07; + DUK_ASSERT(nargs == (1 + + ((flags & DUK_COMPILE_NOSOURCE) ? 0 : 1) + + ((flags & DUK_COMPILE_NOFILENAME) ? 0 : 1))); + rc = duk_safe_call(ctx, duk__do_compile, nargs, nrets); + + /* [ ... closure ] */ + return rc; + } + + (void) duk__do_compile(ctx); + + /* [ ... closure ] */ + return DUK_EXEC_SUCCESS; +} +#line 1 "duk_api_debug.c" +/* + * Debugging related API calls + */ + +/* include removed: duk_internal.h */ + +DUK_EXTERNAL void duk_push_context_dump(duk_context *ctx) { + duk_idx_t idx; + duk_idx_t top; + + DUK_ASSERT_CTX_VALID(ctx); + + /* We don't duk_require_stack() here now, but rely on the caller having + * enough space. + */ + + top = duk_get_top(ctx); + duk_push_array(ctx); + for (idx = 0; idx < top; idx++) { + duk_dup(ctx, idx); + duk_put_prop_index(ctx, -2, idx); + } + + /* XXX: conversion errors should not propagate outwards. + * Perhaps values need to be coerced individually? + */ + duk_bi_json_stringify_helper(ctx, + duk_get_top_index(ctx), /*idx_value*/ + DUK_INVALID_INDEX, /*idx_replacer*/ + DUK_INVALID_INDEX, /*idx_space*/ + DUK_JSON_FLAG_EXT_CUSTOM | + DUK_JSON_FLAG_ASCII_ONLY | + DUK_JSON_FLAG_AVOID_KEY_QUOTES /*flags*/); + + duk_push_sprintf(ctx, "ctx: top=%ld, stack=%s", (long) top, (const char *) duk_safe_to_string(ctx, -1)); + duk_replace(ctx, -3); /* [ ... arr jsonx(arr) res ] -> [ ... res jsonx(arr) ] */ + duk_pop(ctx); + DUK_ASSERT(duk_is_string(ctx, -1)); +} + +#if defined(DUK_USE_DEBUGGER_SUPPORT) + +DUK_EXTERNAL void duk_debugger_attach_custom(duk_context *ctx, + duk_debug_read_function read_cb, + duk_debug_write_function write_cb, + duk_debug_peek_function peek_cb, + duk_debug_read_flush_function read_flush_cb, + duk_debug_write_flush_function write_flush_cb, + duk_debug_request_function request_cb, + duk_debug_detached_function detached_cb, + void *udata) { + duk_hthread *thr = (duk_hthread *) ctx; + duk_heap *heap; + const char *str; + duk_size_t len; + + /* XXX: should there be an error or an automatic detach if + * already attached? + */ + + DUK_D(DUK_DPRINT("application called duk_debugger_attach()")); + + DUK_ASSERT_CTX_VALID(ctx); + DUK_ASSERT(read_cb != NULL); + DUK_ASSERT(write_cb != NULL); + /* Other callbacks are optional. */ + + heap = thr->heap; + heap->dbg_read_cb = read_cb; + heap->dbg_write_cb = write_cb; + heap->dbg_peek_cb = peek_cb; + heap->dbg_read_flush_cb = read_flush_cb; + heap->dbg_write_flush_cb = write_flush_cb; + heap->dbg_request_cb = request_cb; + heap->dbg_detached_cb = detached_cb; + heap->dbg_udata = udata; + heap->dbg_have_next_byte = 0; + + /* Start in paused state. */ + heap->dbg_processing = 0; + heap->dbg_paused = 1; + heap->dbg_state_dirty = 1; + heap->dbg_force_restart = 0; + heap->dbg_step_type = 0; + heap->dbg_step_thread = NULL; + heap->dbg_step_csindex = 0; + heap->dbg_step_startline = 0; + heap->dbg_exec_counter = 0; + heap->dbg_last_counter = 0; + heap->dbg_last_time = 0.0; + + /* Send version identification and flush right afterwards. Note that + * we must write raw, unframed bytes here. + */ + duk_push_sprintf(ctx, "%ld %ld %s %s\n", + (long) DUK_DEBUG_PROTOCOL_VERSION, + (long) DUK_VERSION, + (const char *) DUK_GIT_DESCRIBE, + (const char *) DUK_USE_TARGET_INFO); + str = duk_get_lstring(ctx, -1, &len); + DUK_ASSERT(str != NULL); + duk_debug_write_bytes(thr, (const duk_uint8_t *) str, len); + duk_debug_write_flush(thr); + duk_pop(ctx); +} + +DUK_EXTERNAL void duk_debugger_detach(duk_context *ctx) { + duk_hthread *thr; + + DUK_D(DUK_DPRINT("application called duk_debugger_detach()")); + + DUK_ASSERT_CTX_VALID(ctx); + thr = (duk_hthread *) ctx; + DUK_ASSERT(thr != NULL); + DUK_ASSERT(thr->heap != NULL); + + /* Can be called multiple times with no harm. */ + duk_debug_do_detach(thr->heap); +} + +DUK_EXTERNAL void duk_debugger_cooperate(duk_context *ctx) { + duk_hthread *thr; + duk_bool_t processed_messages; + + DUK_ASSERT_CTX_VALID(ctx); + thr = (duk_hthread *) ctx; + DUK_ASSERT(thr != NULL); + DUK_ASSERT(thr->heap != NULL); + + if (!DUK_HEAP_IS_DEBUGGER_ATTACHED(thr->heap)) { + return; + } + if (thr->callstack_top > 0 || thr->heap->dbg_processing) { + /* Calling duk_debugger_cooperate() while Duktape is being + * called into is not supported. This is not a 100% check + * but prevents any damage in most cases. + */ + return; + } + + processed_messages = duk_debug_process_messages(thr, 1 /*no_block*/); + DUK_UNREF(processed_messages); +} + +DUK_EXTERNAL duk_bool_t duk_debugger_notify(duk_context *ctx, duk_idx_t nvalues) { + duk_hthread *thr; + duk_idx_t top; + duk_idx_t idx; + duk_bool_t ret = 0; + + DUK_ASSERT_CTX_VALID(ctx); + thr = (duk_hthread *) ctx; + DUK_ASSERT(thr != NULL); + DUK_ASSERT(thr->heap != NULL); + + DUK_D(DUK_DPRINT("application called duk_debugger_notify() with nvalues=%ld", (long) nvalues)); + + top = duk_get_top(ctx); + if (top < nvalues) { + DUK_ERROR_API(thr, "not enough stack values for notify"); + return ret; /* unreachable */ + } + if (DUK_HEAP_IS_DEBUGGER_ATTACHED(thr->heap)) { + duk_debug_write_notify(thr, DUK_DBG_CMD_APPNOTIFY); + for (idx = top - nvalues; idx < top; idx++) { + duk_tval *tv = DUK_GET_TVAL_POSIDX(ctx, idx); + duk_debug_write_tval(thr, tv); + } + duk_debug_write_eom(thr); + + /* Return non-zero (true) if we have a good reason to believe + * the notify was delivered; if we're still attached at least + * a transport error was not indicated by the transport write + * callback. This is not a 100% guarantee of course. + */ + if (DUK_HEAP_IS_DEBUGGER_ATTACHED(thr->heap)) { + ret = 1; + } + } + duk_pop_n(ctx, nvalues); + return ret; +} + +DUK_EXTERNAL void duk_debugger_pause(duk_context *ctx) { + duk_hthread *thr; + + DUK_ASSERT_CTX_VALID(ctx); + thr = (duk_hthread *) ctx; + DUK_ASSERT(thr != NULL); + DUK_ASSERT(thr->heap != NULL); + + DUK_D(DUK_DPRINT("application called duk_debugger_pause()")); + + /* Treat like a debugger statement: ignore when not attached. */ + if (DUK_HEAP_IS_DEBUGGER_ATTACHED(thr->heap)) { + DUK_HEAP_SET_PAUSED(thr->heap); + + /* Pause on the next opcode executed. This is always safe to do even + * inside the debugger message loop: the interrupt counter will be reset + * to its proper value when the message loop exits. + */ + thr->interrupt_init = 1; + thr->interrupt_counter = 0; + } +} + +#else /* DUK_USE_DEBUGGER_SUPPORT */ + +DUK_EXTERNAL void duk_debugger_attach_custom(duk_context *ctx, + duk_debug_read_function read_cb, + duk_debug_write_function write_cb, + duk_debug_peek_function peek_cb, + duk_debug_read_flush_function read_flush_cb, + duk_debug_write_flush_function write_flush_cb, + duk_debug_request_function request_cb, + duk_debug_detached_function detached_cb, + void *udata) { + DUK_ASSERT_CTX_VALID(ctx); + DUK_UNREF(read_cb); + DUK_UNREF(write_cb); + DUK_UNREF(peek_cb); + DUK_UNREF(read_flush_cb); + DUK_UNREF(write_flush_cb); + DUK_UNREF(request_cb); + DUK_UNREF(detached_cb); + DUK_UNREF(udata); + DUK_ERROR_API((duk_hthread *) ctx, "no debugger support"); +} + +DUK_EXTERNAL void duk_debugger_detach(duk_context *ctx) { + DUK_ASSERT_CTX_VALID(ctx); + DUK_ERROR_API((duk_hthread *) ctx, "no debugger support"); +} + +DUK_EXTERNAL void duk_debugger_cooperate(duk_context *ctx) { + /* nop */ + DUK_ASSERT_CTX_VALID(ctx); + DUK_UNREF(ctx); +} + +DUK_EXTERNAL duk_bool_t duk_debugger_notify(duk_context *ctx, duk_idx_t nvalues) { + duk_idx_t top; + + DUK_ASSERT_CTX_VALID(ctx); + + top = duk_get_top(ctx); + if (top < nvalues) { + DUK_ERROR_API((duk_hthread *) ctx, "not enough stack values for notify"); + return 0; /* unreachable */ + } + + /* No debugger support, just pop values. */ + duk_pop_n(ctx, nvalues); + return 0; +} + +DUK_EXTERNAL void duk_debugger_pause(duk_context *ctx) { + /* Treat like debugger statement: nop */ + DUK_ASSERT_CTX_VALID(ctx); + DUK_UNREF(ctx); +} + +#endif /* DUK_USE_DEBUGGER_SUPPORT */ +#line 1 "duk_api_heap.c" +/* + * Heap creation and destruction + */ + +/* include removed: duk_internal.h */ + +DUK_EXTERNAL +duk_context *duk_create_heap(duk_alloc_function alloc_func, + duk_realloc_function realloc_func, + duk_free_function free_func, + void *heap_udata, + duk_fatal_function fatal_handler) { + duk_heap *heap = NULL; + duk_context *ctx; + + /* Assume that either all memory funcs are NULL or non-NULL, mixed + * cases will now be unsafe. + */ + + /* XXX: just assert non-NULL values here and make caller arguments + * do the defaulting to the default implementations (smaller code)? + */ + + if (!alloc_func) { + DUK_ASSERT(realloc_func == NULL); + DUK_ASSERT(free_func == NULL); +#if defined(DUK_USE_PROVIDE_DEFAULT_ALLOC_FUNCTIONS) + alloc_func = duk_default_alloc_function; + realloc_func = duk_default_realloc_function; + free_func = duk_default_free_function; +#else + DUK_D(DUK_DPRINT("no allocation functions given and no default providers")); + return NULL; +#endif + } else { + DUK_ASSERT(realloc_func != NULL); + DUK_ASSERT(free_func != NULL); + } + + if (!fatal_handler) { + fatal_handler = duk_default_fatal_handler; + } + + DUK_ASSERT(alloc_func != NULL); + DUK_ASSERT(realloc_func != NULL); + DUK_ASSERT(free_func != NULL); + DUK_ASSERT(fatal_handler != NULL); + + heap = duk_heap_alloc(alloc_func, realloc_func, free_func, heap_udata, fatal_handler); + if (!heap) { + return NULL; + } + ctx = (duk_context *) heap->heap_thread; + DUK_ASSERT(ctx != NULL); + DUK_ASSERT(((duk_hthread *) ctx)->heap != NULL); + return ctx; +} + +DUK_EXTERNAL void duk_destroy_heap(duk_context *ctx) { + duk_hthread *thr = (duk_hthread *) ctx; + duk_heap *heap; + + if (!ctx) { + return; + } + heap = thr->heap; + DUK_ASSERT(heap != NULL); + + duk_heap_free(heap); +} + +/* XXX: better place for this */ +DUK_EXTERNAL void duk_set_global_object(duk_context *ctx) { + duk_hthread *thr = (duk_hthread *) ctx; + duk_hobject *h_glob; + duk_hobject *h_prev_glob; + duk_hobject *h_env; + duk_hobject *h_prev_env; + + DUK_D(DUK_DPRINT("replace global object with: %!T", duk_get_tval(ctx, -1))); + + h_glob = duk_require_hobject(ctx, -1); + DUK_ASSERT(h_glob != NULL); + + /* + * Replace global object. + */ + + h_prev_glob = thr->builtins[DUK_BIDX_GLOBAL]; + DUK_UNREF(h_prev_glob); + thr->builtins[DUK_BIDX_GLOBAL] = h_glob; + DUK_HOBJECT_INCREF(thr, h_glob); + DUK_HOBJECT_DECREF_ALLOWNULL(thr, h_prev_glob); /* side effects, in theory (referenced by global env) */ + + /* + * Replace lexical environment for global scope + * + * Create a new object environment for the global lexical scope. + * We can't just reset the _Target property of the current one, + * because the lexical scope is shared by other threads with the + * same (initial) built-ins. + */ + + (void) duk_push_object_helper(ctx, + DUK_HOBJECT_FLAG_EXTENSIBLE | + DUK_HOBJECT_CLASS_AS_FLAGS(DUK_HOBJECT_CLASS_OBJENV), + -1); /* no prototype, updated below */ + + duk_dup(ctx, -2); + duk_dup(ctx, -3); + + /* [ ... new_glob new_env new_glob new_glob ] */ + + duk_xdef_prop_stridx(thr, -3, DUK_STRIDX_INT_TARGET, DUK_PROPDESC_FLAGS_NONE); + duk_xdef_prop_stridx(thr, -2, DUK_STRIDX_INT_THIS, DUK_PROPDESC_FLAGS_NONE); + + /* [ ... new_glob new_env ] */ + + h_env = duk_get_hobject(ctx, -1); + DUK_ASSERT(h_env != NULL); + + h_prev_env = thr->builtins[DUK_BIDX_GLOBAL_ENV]; + thr->builtins[DUK_BIDX_GLOBAL_ENV] = h_env; + DUK_HOBJECT_INCREF(thr, h_env); + DUK_HOBJECT_DECREF_ALLOWNULL(thr, h_prev_env); /* side effects */ + DUK_UNREF(h_env); /* without refcounts */ + DUK_UNREF(h_prev_env); + + /* [ ... new_glob new_env ] */ + + duk_pop_2(ctx); + + /* [ ... ] */ +} +#line 1 "duk_api_logging.c" +/* + * Logging + * + * Current logging primitive is a sprintf-style log which is convenient + * for most C code. Another useful primitive would be to log N arguments + * from value stack (like the Ecmascript binding does). + */ + +/* include removed: duk_internal.h */ + +DUK_EXTERNAL void duk_log_va(duk_context *ctx, duk_int_t level, const char *fmt, va_list ap) { + /* stridx_logfunc[] must be static to allow initializer with old compilers like BCC */ + static const duk_uint16_t stridx_logfunc[6] = { + DUK_STRIDX_LC_TRACE, DUK_STRIDX_LC_DEBUG, DUK_STRIDX_LC_INFO, + DUK_STRIDX_LC_WARN, DUK_STRIDX_LC_ERROR, DUK_STRIDX_LC_FATAL + }; + + DUK_ASSERT_CTX_VALID(ctx); + + if (level < 0) { + level = 0; + } else if (level > (int) (sizeof(stridx_logfunc) / sizeof(duk_uint16_t)) - 1) { + level = (int) (sizeof(stridx_logfunc) / sizeof(duk_uint16_t)) - 1; + } + + duk_push_hobject_bidx(ctx, DUK_BIDX_LOGGER_CONSTRUCTOR); + duk_get_prop_stridx(ctx, -1, DUK_STRIDX_CLOG); + duk_get_prop_stridx(ctx, -1, stridx_logfunc[level]); + duk_dup(ctx, -2); + + /* [ ... Logger clog logfunc clog ] */ + + duk_push_vsprintf(ctx, fmt, ap); + + /* [ ... Logger clog logfunc clog(=this) msg ] */ + + duk_call_method(ctx, 1 /*nargs*/); + + /* [ ... Logger clog res ] */ + + duk_pop_3(ctx); +} + +DUK_EXTERNAL void duk_log(duk_context *ctx, duk_int_t level, const char *fmt, ...) { + va_list ap; + + DUK_ASSERT_CTX_VALID(ctx); + + va_start(ap, fmt); + duk_log_va(ctx, level, fmt, ap); + va_end(ap); +} +#line 1 "duk_api_memory.c" +/* + * Memory calls. + */ + +/* include removed: duk_internal.h */ + +DUK_EXTERNAL void *duk_alloc_raw(duk_context *ctx, duk_size_t size) { + duk_hthread *thr = (duk_hthread *) ctx; + + DUK_ASSERT_CTX_VALID(ctx); + + return DUK_ALLOC_RAW(thr->heap, size); +} + +DUK_EXTERNAL void duk_free_raw(duk_context *ctx, void *ptr) { + duk_hthread *thr = (duk_hthread *) ctx; + + DUK_ASSERT_CTX_VALID(ctx); + + DUK_FREE_RAW(thr->heap, ptr); +} + +DUK_EXTERNAL void *duk_realloc_raw(duk_context *ctx, void *ptr, duk_size_t size) { + duk_hthread *thr = (duk_hthread *) ctx; + + DUK_ASSERT_CTX_VALID(ctx); + + return DUK_REALLOC_RAW(thr->heap, ptr, size); +} + +DUK_EXTERNAL void *duk_alloc(duk_context *ctx, duk_size_t size) { + duk_hthread *thr = (duk_hthread *) ctx; + + DUK_ASSERT_CTX_VALID(ctx); + + return DUK_ALLOC(thr->heap, size); +} + +DUK_EXTERNAL void duk_free(duk_context *ctx, void *ptr) { + duk_hthread *thr = (duk_hthread *) ctx; + + DUK_ASSERT_CTX_VALID(ctx); + + DUK_FREE(thr->heap, ptr); +} + +DUK_EXTERNAL void *duk_realloc(duk_context *ctx, void *ptr, duk_size_t size) { + duk_hthread *thr = (duk_hthread *) ctx; + + DUK_ASSERT_CTX_VALID(ctx); + + /* + * Note: since this is an exposed API call, there should be + * no way a mark-and-sweep could have a side effect on the + * memory allocation behind 'ptr'; the pointer should never + * be something that Duktape wants to change. + * + * Thus, no need to use DUK_REALLOC_INDIRECT (and we don't + * have the storage location here anyway). + */ + + return DUK_REALLOC(thr->heap, ptr, size); +} + +DUK_EXTERNAL void duk_get_memory_functions(duk_context *ctx, duk_memory_functions *out_funcs) { + duk_hthread *thr = (duk_hthread *) ctx; + duk_heap *heap; + + DUK_ASSERT_CTX_VALID(ctx); + DUK_ASSERT(out_funcs != NULL); + DUK_ASSERT(thr != NULL); + DUK_ASSERT(thr->heap != NULL); + + heap = thr->heap; + out_funcs->alloc_func = heap->alloc_func; + out_funcs->realloc_func = heap->realloc_func; + out_funcs->free_func = heap->free_func; + out_funcs->udata = heap->heap_udata; +} + +DUK_EXTERNAL void duk_gc(duk_context *ctx, duk_uint_t flags) { +#ifdef DUK_USE_MARK_AND_SWEEP + duk_hthread *thr = (duk_hthread *) ctx; + duk_heap *heap; + + DUK_UNREF(flags); + + /* NULL accepted */ + if (!ctx) { + return; + } + DUK_ASSERT_CTX_VALID(ctx); + heap = thr->heap; + DUK_ASSERT(heap != NULL); + + DUK_D(DUK_DPRINT("mark-and-sweep requested by application")); + duk_heap_mark_and_sweep(heap, 0); +#else + DUK_D(DUK_DPRINT("mark-and-sweep requested by application but mark-and-sweep not enabled, ignoring")); + DUK_UNREF(ctx); + DUK_UNREF(flags); +#endif +} +#line 1 "duk_api_object.c" +/* + * Object handling: property access and other support functions. + */ + +/* include removed: duk_internal.h */ + +/* + * Property handling + * + * The API exposes only the most common property handling functions. + * The caller can invoke Ecmascript built-ins for full control (e.g. + * defineProperty, getOwnPropertyDescriptor). + */ + +DUK_EXTERNAL duk_bool_t duk_get_prop(duk_context *ctx, duk_idx_t obj_index) { + duk_hthread *thr = (duk_hthread *) ctx; + duk_tval *tv_obj; + duk_tval *tv_key; + duk_bool_t rc; + + DUK_ASSERT_CTX_VALID(ctx); + + /* Note: copying tv_obj and tv_key to locals to shield against a valstack + * resize is not necessary for a property get right now. + */ + + tv_obj = duk_require_tval(ctx, obj_index); + tv_key = duk_require_tval(ctx, -1); + + rc = duk_hobject_getprop(thr, tv_obj, tv_key); + DUK_ASSERT(rc == 0 || rc == 1); + /* a value is left on stack regardless of rc */ + + duk_remove(ctx, -2); /* remove key */ + return rc; /* 1 if property found, 0 otherwise */ +} + +DUK_EXTERNAL duk_bool_t duk_get_prop_string(duk_context *ctx, duk_idx_t obj_index, const char *key) { + DUK_ASSERT_CTX_VALID(ctx); + DUK_ASSERT(key != NULL); + + obj_index = duk_require_normalize_index(ctx, obj_index); + duk_push_string(ctx, key); + return duk_get_prop(ctx, obj_index); +} + +DUK_EXTERNAL duk_bool_t duk_get_prop_index(duk_context *ctx, duk_idx_t obj_index, duk_uarridx_t arr_index) { + DUK_ASSERT_CTX_VALID(ctx); + + obj_index = duk_require_normalize_index(ctx, obj_index); + duk_push_uarridx(ctx, arr_index); + return duk_get_prop(ctx, obj_index); +} + +DUK_INTERNAL duk_bool_t duk_get_prop_stridx(duk_context *ctx, duk_idx_t obj_index, duk_small_int_t stridx) { + duk_hthread *thr = (duk_hthread *) ctx; + + DUK_ASSERT_CTX_VALID(ctx); + DUK_ASSERT_DISABLE(stridx >= 0); + DUK_ASSERT(stridx < DUK_HEAP_NUM_STRINGS); + DUK_UNREF(thr); + + obj_index = duk_require_normalize_index(ctx, obj_index); + duk_push_hstring(ctx, DUK_HTHREAD_GET_STRING(thr, stridx)); + return duk_get_prop(ctx, obj_index); +} + +DUK_INTERNAL duk_bool_t duk_get_prop_stridx_boolean(duk_context *ctx, duk_idx_t obj_index, duk_small_int_t stridx, duk_bool_t *out_has_prop) { + duk_bool_t rc; + + DUK_ASSERT_CTX_VALID(ctx); + DUK_ASSERT_DISABLE(stridx >= 0); + DUK_ASSERT(stridx < DUK_HEAP_NUM_STRINGS); + + rc = duk_get_prop_stridx(ctx, obj_index, stridx); + if (out_has_prop) { + *out_has_prop = rc; + } + rc = duk_to_boolean(ctx, -1); + DUK_ASSERT(rc == 0 || rc == 1); + duk_pop(ctx); + return rc; +} + +DUK_EXTERNAL duk_bool_t duk_put_prop(duk_context *ctx, duk_idx_t obj_index) { + duk_hthread *thr = (duk_hthread *) ctx; + duk_tval *tv_obj; + duk_tval *tv_key; + duk_tval *tv_val; + duk_small_int_t throw_flag; + duk_bool_t rc; + + DUK_ASSERT_CTX_VALID(ctx); + + /* Note: copying tv_obj and tv_key to locals to shield against a valstack + * resize is not necessary for a property put right now (putprop protects + * against it internally). + */ + + tv_obj = duk_require_tval(ctx, obj_index); + tv_key = duk_require_tval(ctx, -2); + tv_val = duk_require_tval(ctx, -1); + throw_flag = duk_is_strict_call(ctx); + + rc = duk_hobject_putprop(thr, tv_obj, tv_key, tv_val, throw_flag); + DUK_ASSERT(rc == 0 || rc == 1); + + duk_pop_2(ctx); /* remove key and value */ + return rc; /* 1 if property found, 0 otherwise */ +} + +DUK_EXTERNAL duk_bool_t duk_put_prop_string(duk_context *ctx, duk_idx_t obj_index, const char *key) { + DUK_ASSERT_CTX_VALID(ctx); + DUK_ASSERT(key != NULL); + + obj_index = duk_require_normalize_index(ctx, obj_index); + duk_push_string(ctx, key); + duk_swap_top(ctx, -2); /* [val key] -> [key val] */ + return duk_put_prop(ctx, obj_index); +} + +DUK_EXTERNAL duk_bool_t duk_put_prop_index(duk_context *ctx, duk_idx_t obj_index, duk_uarridx_t arr_index) { + DUK_ASSERT_CTX_VALID(ctx); + + obj_index = duk_require_normalize_index(ctx, obj_index); + duk_push_uarridx(ctx, arr_index); + duk_swap_top(ctx, -2); /* [val key] -> [key val] */ + return duk_put_prop(ctx, obj_index); +} + +DUK_INTERNAL duk_bool_t duk_put_prop_stridx(duk_context *ctx, duk_idx_t obj_index, duk_small_int_t stridx) { + duk_hthread *thr = (duk_hthread *) ctx; + + DUK_ASSERT_CTX_VALID(ctx); + DUK_ASSERT_DISABLE(stridx >= 0); + DUK_ASSERT(stridx < DUK_HEAP_NUM_STRINGS); + DUK_UNREF(thr); + + obj_index = duk_require_normalize_index(ctx, obj_index); + duk_push_hstring(ctx, DUK_HTHREAD_GET_STRING(thr, stridx)); + duk_swap_top(ctx, -2); /* [val key] -> [key val] */ + return duk_put_prop(ctx, obj_index); +} + +DUK_EXTERNAL duk_bool_t duk_del_prop(duk_context *ctx, duk_idx_t obj_index) { + duk_hthread *thr = (duk_hthread *) ctx; + duk_tval *tv_obj; + duk_tval *tv_key; + duk_small_int_t throw_flag; + duk_bool_t rc; + + DUK_ASSERT_CTX_VALID(ctx); + + /* Note: copying tv_obj and tv_key to locals to shield against a valstack + * resize is not necessary for a property delete right now. + */ + + tv_obj = duk_require_tval(ctx, obj_index); + tv_key = duk_require_tval(ctx, -1); + throw_flag = duk_is_strict_call(ctx); + + rc = duk_hobject_delprop(thr, tv_obj, tv_key, throw_flag); + DUK_ASSERT(rc == 0 || rc == 1); + + duk_pop(ctx); /* remove key */ + return rc; +} + +DUK_EXTERNAL duk_bool_t duk_del_prop_string(duk_context *ctx, duk_idx_t obj_index, const char *key) { + DUK_ASSERT_CTX_VALID(ctx); + DUK_ASSERT(key != NULL); + + obj_index = duk_require_normalize_index(ctx, obj_index); + duk_push_string(ctx, key); + return duk_del_prop(ctx, obj_index); +} + +DUK_EXTERNAL duk_bool_t duk_del_prop_index(duk_context *ctx, duk_idx_t obj_index, duk_uarridx_t arr_index) { + DUK_ASSERT_CTX_VALID(ctx); + + obj_index = duk_require_normalize_index(ctx, obj_index); + duk_push_uarridx(ctx, arr_index); + return duk_del_prop(ctx, obj_index); +} + +DUK_INTERNAL duk_bool_t duk_del_prop_stridx(duk_context *ctx, duk_idx_t obj_index, duk_small_int_t stridx) { + duk_hthread *thr = (duk_hthread *) ctx; + + DUK_ASSERT_CTX_VALID(ctx); + DUK_ASSERT_DISABLE(stridx >= 0); + DUK_ASSERT(stridx < DUK_HEAP_NUM_STRINGS); + DUK_UNREF(thr); + + obj_index = duk_require_normalize_index(ctx, obj_index); + duk_push_hstring(ctx, DUK_HTHREAD_GET_STRING(thr, stridx)); + return duk_del_prop(ctx, obj_index); +} + +DUK_EXTERNAL duk_bool_t duk_has_prop(duk_context *ctx, duk_idx_t obj_index) { + duk_hthread *thr = (duk_hthread *) ctx; + duk_tval *tv_obj; + duk_tval *tv_key; + duk_bool_t rc; + + DUK_ASSERT_CTX_VALID(ctx); + + /* Note: copying tv_obj and tv_key to locals to shield against a valstack + * resize is not necessary for a property existence check right now. + */ + + tv_obj = duk_require_tval(ctx, obj_index); + tv_key = duk_require_tval(ctx, -1); + + rc = duk_hobject_hasprop(thr, tv_obj, tv_key); + DUK_ASSERT(rc == 0 || rc == 1); + + duk_pop(ctx); /* remove key */ + return rc; /* 1 if property found, 0 otherwise */ +} + +DUK_EXTERNAL duk_bool_t duk_has_prop_string(duk_context *ctx, duk_idx_t obj_index, const char *key) { + DUK_ASSERT_CTX_VALID(ctx); + DUK_ASSERT(key != NULL); + + obj_index = duk_require_normalize_index(ctx, obj_index); + duk_push_string(ctx, key); + return duk_has_prop(ctx, obj_index); +} + +DUK_EXTERNAL duk_bool_t duk_has_prop_index(duk_context *ctx, duk_idx_t obj_index, duk_uarridx_t arr_index) { + DUK_ASSERT_CTX_VALID(ctx); + + obj_index = duk_require_normalize_index(ctx, obj_index); + duk_push_uarridx(ctx, arr_index); + return duk_has_prop(ctx, obj_index); +} + +DUK_INTERNAL duk_bool_t duk_has_prop_stridx(duk_context *ctx, duk_idx_t obj_index, duk_small_int_t stridx) { + duk_hthread *thr = (duk_hthread *) ctx; + + DUK_ASSERT_CTX_VALID(ctx); + DUK_ASSERT_DISABLE(stridx >= 0); + DUK_ASSERT(stridx < DUK_HEAP_NUM_STRINGS); + DUK_UNREF(thr); + + obj_index = duk_require_normalize_index(ctx, obj_index); + duk_push_hstring(ctx, DUK_HTHREAD_GET_STRING(thr, stridx)); + return duk_has_prop(ctx, obj_index); +} + +/* Define own property without inheritance looks and such. This differs from + * [[DefineOwnProperty]] because special behaviors (like Array 'length') are + * not invoked by this method. The caller must be careful to invoke any such + * behaviors if necessary. + */ +DUK_INTERNAL void duk_xdef_prop(duk_context *ctx, duk_idx_t obj_index, duk_small_uint_t desc_flags) { + duk_hthread *thr = (duk_hthread *) ctx; + duk_hobject *obj; + duk_hstring *key; + + DUK_ASSERT_CTX_VALID(ctx); + + obj = duk_require_hobject(ctx, obj_index); + DUK_ASSERT(obj != NULL); + key = duk_to_hstring(ctx, -2); + DUK_ASSERT(key != NULL); + DUK_ASSERT(duk_require_tval(ctx, -1) != NULL); + + duk_hobject_define_property_internal(thr, obj, key, desc_flags); + + duk_pop(ctx); /* pop key */ +} + +DUK_INTERNAL void duk_xdef_prop_index(duk_context *ctx, duk_idx_t obj_index, duk_uarridx_t arr_index, duk_small_uint_t desc_flags) { + duk_hthread *thr = (duk_hthread *) ctx; + duk_hobject *obj; + + DUK_ASSERT_CTX_VALID(ctx); + + obj = duk_require_hobject(ctx, obj_index); + DUK_ASSERT(obj != NULL); + + duk_hobject_define_property_internal_arridx(thr, obj, arr_index, desc_flags); + /* value popped by call */ +} + +DUK_INTERNAL void duk_xdef_prop_stridx(duk_context *ctx, duk_idx_t obj_index, duk_small_int_t stridx, duk_small_uint_t desc_flags) { + duk_hthread *thr = (duk_hthread *) ctx; + duk_hobject *obj; + duk_hstring *key; + + DUK_ASSERT_CTX_VALID(ctx); + DUK_ASSERT_DISABLE(stridx >= 0); + DUK_ASSERT(stridx < DUK_HEAP_NUM_STRINGS); + + obj = duk_require_hobject(ctx, obj_index); + DUK_ASSERT(obj != NULL); + key = DUK_HTHREAD_GET_STRING(thr, stridx); + DUK_ASSERT(key != NULL); + DUK_ASSERT(duk_require_tval(ctx, -1) != NULL); + + duk_hobject_define_property_internal(thr, obj, key, desc_flags); + /* value popped by call */ +} + +DUK_INTERNAL void duk_xdef_prop_stridx_builtin(duk_context *ctx, duk_idx_t obj_index, duk_small_int_t stridx, duk_small_int_t builtin_idx, duk_small_uint_t desc_flags) { + duk_hthread *thr = (duk_hthread *) ctx; + duk_hobject *obj; + duk_hstring *key; + + DUK_ASSERT_CTX_VALID(ctx); + DUK_ASSERT_DISABLE(stridx >= 0); + DUK_ASSERT(stridx < DUK_HEAP_NUM_STRINGS); + DUK_ASSERT_DISABLE(builtin_idx >= 0); + DUK_ASSERT(builtin_idx < DUK_NUM_BUILTINS); + + obj = duk_require_hobject(ctx, obj_index); + DUK_ASSERT(obj != NULL); + key = DUK_HTHREAD_GET_STRING(thr, stridx); + DUK_ASSERT(key != NULL); + + duk_push_hobject(ctx, thr->builtins[builtin_idx]); + duk_hobject_define_property_internal(thr, obj, key, desc_flags); + /* value popped by call */ +} + +/* This is a rare property helper; it sets the global thrower (E5 Section 13.2.3) + * setter/getter into an object property. This is needed by the 'arguments' + * object creation code, function instance creation code, and Function.prototype.bind(). + */ + +DUK_INTERNAL void duk_xdef_prop_stridx_thrower(duk_context *ctx, duk_idx_t obj_index, duk_small_int_t stridx, duk_small_uint_t desc_flags) { + duk_hthread *thr = (duk_hthread *) ctx; + duk_hobject *obj = duk_require_hobject(ctx, obj_index); + duk_hobject *thrower = thr->builtins[DUK_BIDX_TYPE_ERROR_THROWER]; + duk_hobject_define_accessor_internal(thr, obj, DUK_HTHREAD_GET_STRING(thr, stridx), thrower, thrower, desc_flags); +} + +/* Object.defineProperty() equivalent C binding. */ +DUK_EXTERNAL void duk_def_prop(duk_context *ctx, duk_idx_t obj_index, duk_uint_t flags) { + duk_hthread *thr = (duk_hthread *) ctx; + duk_idx_t idx_base; + duk_hobject *obj; + duk_hstring *key; + duk_idx_t idx_value; + duk_hobject *get; + duk_hobject *set; + duk_uint_t is_data_desc; + duk_uint_t is_acc_desc; + + DUK_ASSERT_CTX_VALID(ctx); + + obj = duk_require_hobject(ctx, obj_index); + + is_data_desc = flags & (DUK_DEFPROP_HAVE_VALUE | DUK_DEFPROP_HAVE_WRITABLE); + is_acc_desc = flags & (DUK_DEFPROP_HAVE_GETTER | DUK_DEFPROP_HAVE_SETTER); + if (is_data_desc && is_acc_desc) { + /* "Have" flags must not be conflicting so that they would + * apply to both a plain property and an accessor at the same + * time. + */ + goto fail_invalid_desc; + } + + idx_base = duk_get_top_index(ctx); + if (flags & DUK_DEFPROP_HAVE_SETTER) { + duk_require_type_mask(ctx, idx_base, DUK_TYPE_MASK_UNDEFINED | + DUK_TYPE_MASK_OBJECT | + DUK_TYPE_MASK_LIGHTFUNC); + set = duk_get_hobject_or_lfunc_coerce(ctx, idx_base); + if (set != NULL && !DUK_HOBJECT_IS_CALLABLE(set)) { + goto fail_not_callable; + } + idx_base--; + } else { + set = NULL; + } + if (flags & DUK_DEFPROP_HAVE_GETTER) { + duk_require_type_mask(ctx, idx_base, DUK_TYPE_MASK_UNDEFINED | + DUK_TYPE_MASK_OBJECT | + DUK_TYPE_MASK_LIGHTFUNC); + get = duk_get_hobject_or_lfunc_coerce(ctx, idx_base); + if (get != NULL && !DUK_HOBJECT_IS_CALLABLE(get)) { + goto fail_not_callable; + } + idx_base--; + } else { + get = NULL; + } + if (flags & DUK_DEFPROP_HAVE_VALUE) { + idx_value = idx_base; + idx_base--; + } else { + idx_value = (duk_idx_t) -1; + } + key = duk_require_hstring(ctx, idx_base); + + duk_require_valid_index(ctx, idx_base); + + duk_hobject_define_property_helper(ctx, + flags /*defprop_flags*/, + obj, + key, + idx_value, + get, + set); + + /* Clean up stack */ + + duk_set_top(ctx, idx_base); + + /* [ ... obj ... ] */ + + return; + + fail_invalid_desc: + DUK_ERROR_TYPE(thr, DUK_STR_INVALID_DESCRIPTOR); + return; + + fail_not_callable: + DUK_ERROR_TYPE(thr, DUK_STR_NOT_CALLABLE); + return; +} + +/* + * Object related + * + * Note: seal() and freeze() are accessible through Ecmascript bindings, + * and are not exposed through the API. + */ + +DUK_EXTERNAL void duk_compact(duk_context *ctx, duk_idx_t obj_index) { + duk_hthread *thr = (duk_hthread *) ctx; + duk_hobject *obj; + + DUK_ASSERT_CTX_VALID(ctx); + + obj = duk_get_hobject(ctx, obj_index); + if (obj) { + /* Note: this may fail, caller should protect the call if necessary */ + duk_hobject_compact_props(thr, obj); + } +} + +/* XXX: the duk_hobject_enum.c stack APIs should be reworked */ + +DUK_EXTERNAL void duk_enum(duk_context *ctx, duk_idx_t obj_index, duk_uint_t enum_flags) { + DUK_ASSERT_CTX_VALID(ctx); + + duk_dup(ctx, obj_index); + duk_require_hobject_or_lfunc_coerce(ctx, -1); + duk_hobject_enumerator_create(ctx, enum_flags); /* [target] -> [enum] */ +} + +DUK_EXTERNAL duk_bool_t duk_next(duk_context *ctx, duk_idx_t enum_index, duk_bool_t get_value) { + DUK_ASSERT_CTX_VALID(ctx); + + duk_require_hobject(ctx, enum_index); + duk_dup(ctx, enum_index); + return duk_hobject_enumerator_next(ctx, get_value); +} + +/* + * Helpers for writing multiple properties + */ + +DUK_EXTERNAL void duk_put_function_list(duk_context *ctx, duk_idx_t obj_index, const duk_function_list_entry *funcs) { + const duk_function_list_entry *ent = funcs; + + DUK_ASSERT_CTX_VALID(ctx); + + obj_index = duk_require_normalize_index(ctx, obj_index); + if (ent != NULL) { + while (ent->key != NULL) { + duk_push_c_function(ctx, ent->value, ent->nargs); + duk_put_prop_string(ctx, obj_index, ent->key); + ent++; + } + } +} + +DUK_EXTERNAL void duk_put_number_list(duk_context *ctx, duk_idx_t obj_index, const duk_number_list_entry *numbers) { + const duk_number_list_entry *ent = numbers; + + DUK_ASSERT_CTX_VALID(ctx); + + obj_index = duk_require_normalize_index(ctx, obj_index); + if (ent != NULL) { + while (ent->key != NULL) { + duk_push_number(ctx, ent->value); + duk_put_prop_string(ctx, obj_index, ent->key); + ent++; + } + } +} + +/* + * Shortcut for accessing global object properties + */ + +DUK_EXTERNAL duk_bool_t duk_get_global_string(duk_context *ctx, const char *key) { + duk_hthread *thr = (duk_hthread *) ctx; + duk_bool_t ret; + + DUK_ASSERT_CTX_VALID(ctx); + DUK_ASSERT(thr->builtins[DUK_BIDX_GLOBAL] != NULL); + + /* XXX: direct implementation */ + + duk_push_hobject(ctx, thr->builtins[DUK_BIDX_GLOBAL]); + ret = duk_get_prop_string(ctx, -1, key); + duk_remove(ctx, -2); + return ret; +} + +DUK_EXTERNAL duk_bool_t duk_put_global_string(duk_context *ctx, const char *key) { + duk_hthread *thr = (duk_hthread *) ctx; + duk_bool_t ret; + + DUK_ASSERT_CTX_VALID(ctx); + DUK_ASSERT(thr->builtins[DUK_BIDX_GLOBAL] != NULL); + + /* XXX: direct implementation */ + + duk_push_hobject(ctx, thr->builtins[DUK_BIDX_GLOBAL]); + duk_insert(ctx, -2); + ret = duk_put_prop_string(ctx, -2, key); /* [ ... global val ] -> [ ... global ] */ + duk_pop(ctx); + return ret; +} + +/* + * Object prototype + */ + +DUK_EXTERNAL void duk_get_prototype(duk_context *ctx, duk_idx_t index) { + duk_hthread *thr = (duk_hthread *) ctx; + duk_hobject *obj; + duk_hobject *proto; + + DUK_ASSERT_CTX_VALID(ctx); + DUK_UNREF(thr); + + obj = duk_require_hobject(ctx, index); + DUK_ASSERT(obj != NULL); + + /* XXX: shared helper for duk_push_hobject_or_undefined()? */ + proto = DUK_HOBJECT_GET_PROTOTYPE(thr->heap, obj); + if (proto) { + duk_push_hobject(ctx, proto); + } else { + duk_push_undefined(ctx); + } +} + +DUK_EXTERNAL void duk_set_prototype(duk_context *ctx, duk_idx_t index) { + duk_hthread *thr = (duk_hthread *) ctx; + duk_hobject *obj; + duk_hobject *proto; + + DUK_ASSERT_CTX_VALID(ctx); + + obj = duk_require_hobject(ctx, index); + DUK_ASSERT(obj != NULL); + duk_require_type_mask(ctx, -1, DUK_TYPE_MASK_UNDEFINED | + DUK_TYPE_MASK_OBJECT); + proto = duk_get_hobject(ctx, -1); + /* proto can also be NULL here (allowed explicitly) */ + +#if defined(DUK_USE_ROM_OBJECTS) + if (DUK_HEAPHDR_HAS_READONLY((duk_heaphdr *) obj)) { + DUK_ERROR_TYPE(thr, DUK_STR_NOT_CONFIGURABLE); /* XXX: "read only object"? */ + return; + } +#endif + + DUK_HOBJECT_SET_PROTOTYPE_UPDREF(thr, obj, proto); + + duk_pop(ctx); +} + +/* + * Object finalizer + */ + +/* XXX: these could be implemented as macros calling an internal function + * directly. + * XXX: same issue as with Duktape.fin: there's no way to delete the property + * now (just set it to undefined). + */ +DUK_EXTERNAL void duk_get_finalizer(duk_context *ctx, duk_idx_t index) { + DUK_ASSERT_CTX_VALID(ctx); + + duk_get_prop_stridx(ctx, index, DUK_STRIDX_INT_FINALIZER); +} + +DUK_EXTERNAL void duk_set_finalizer(duk_context *ctx, duk_idx_t index) { + DUK_ASSERT_CTX_VALID(ctx); + + duk_put_prop_stridx(ctx, index, DUK_STRIDX_INT_FINALIZER); +} +#line 1 "duk_api_stack.c" +/* + * API calls related to general value stack manipulation: resizing the value + * stack, pushing and popping values, type checking and reading values, + * coercing values, etc. + * + * Also contains internal functions (such as duk_get_tval()), defined + * in duk_api_internal.h, with semantics similar to the public API. + */ + +/* XXX: repetition of stack pre-checks -> helper or macro or inline */ +/* XXX: shared api error strings, and perhaps even throw code for rare cases? */ + +/* include removed: duk_internal.h */ + +/* + * Forward declarations + */ + +DUK_LOCAL_DECL duk_idx_t duk__push_c_function_raw(duk_context *ctx, duk_c_function func, duk_idx_t nargs, duk_uint_t flags); + +/* + * Global state for working around missing variadic macros + */ + +#ifndef DUK_USE_VARIADIC_MACROS +DUK_EXTERNAL const char *duk_api_global_filename = NULL; +DUK_EXTERNAL duk_int_t duk_api_global_line = 0; +#endif + +/* + * Misc helpers + */ + +/* Check that there's room to push one value. */ +#if defined(DUK_USE_VALSTACK_UNSAFE) +/* Faster but value stack overruns are memory unsafe. */ +#define DUK__CHECK_SPACE() do { \ + DUK_ASSERT(!(thr->valstack_top >= thr->valstack_end)); \ + } while (0) +#else +#define DUK__CHECK_SPACE() do { \ + if (DUK_UNLIKELY(thr->valstack_top >= thr->valstack_end)) { \ + DUK_ERROR_API(thr, DUK_STR_PUSH_BEYOND_ALLOC_STACK); \ + } \ + } while (0) +#endif + +DUK_LOCAL_DECL duk_heaphdr *duk__get_tagged_heaphdr_raw(duk_context *ctx, duk_idx_t index, duk_uint_t tag); + +DUK_LOCAL duk_int_t duk__api_coerce_d2i(duk_context *ctx, duk_idx_t index, duk_bool_t require) { + duk_hthread *thr; + duk_tval *tv; + duk_small_int_t c; + duk_double_t d; + + thr = (duk_hthread *) ctx; + + tv = duk_get_tval(ctx, index); + if (tv == NULL) { + goto error_notnumber; + } + + /* + * Special cases like NaN and +/- Infinity are handled explicitly + * because a plain C coercion from double to int handles these cases + * in undesirable ways. For instance, NaN may coerce to INT_MIN + * (not zero), and INT_MAX + 1 may coerce to INT_MIN (not INT_MAX). + * + * This double-to-int coercion differs from ToInteger() because it + * has a finite range (ToInteger() allows e.g. +/- Infinity). It + * also differs from ToInt32() because the INT_MIN/INT_MAX clamping + * depends on the size of the int type on the platform. In particular, + * on platforms with a 64-bit int type, the full range is allowed. + */ + +#if defined(DUK_USE_FASTINT) + if (DUK_TVAL_IS_FASTINT(tv)) { + duk_int64_t t = DUK_TVAL_GET_FASTINT(tv); +#if (DUK_INT_MAX <= 0x7fffffffL) + /* Clamping only necessary for 32-bit ints. */ + if (t < DUK_INT_MIN) { + t = DUK_INT_MIN; + } else if (t > DUK_INT_MAX) { + t = DUK_INT_MAX; + } +#endif + return (duk_int_t) t; + } +#endif + + if (DUK_TVAL_IS_NUMBER(tv)) { + d = DUK_TVAL_GET_NUMBER(tv); + c = (duk_small_int_t) DUK_FPCLASSIFY(d); + if (c == DUK_FP_NAN) { + return 0; + } else if (d < (duk_double_t) DUK_INT_MIN) { + /* covers -Infinity */ + return DUK_INT_MIN; + } else if (d > (duk_double_t) DUK_INT_MAX) { + /* covers +Infinity */ + return DUK_INT_MAX; + } else { + /* coerce towards zero */ + return (duk_int_t) d; + } + } + + error_notnumber: + + if (require) { + DUK_ERROR_REQUIRE_TYPE_INDEX(thr, index, "number", DUK_STR_NOT_NUMBER); + /* not reachable */ + } + return 0; +} + +DUK_LOCAL duk_uint_t duk__api_coerce_d2ui(duk_context *ctx, duk_idx_t index, duk_bool_t require) { + duk_hthread *thr; + duk_tval *tv; + duk_small_int_t c; + duk_double_t d; + + /* Same as above but for unsigned int range. */ + + thr = (duk_hthread *) ctx; + + tv = duk_get_tval(ctx, index); + if (tv == NULL) { + goto error_notnumber; + } + +#if defined(DUK_USE_FASTINT) + if (DUK_TVAL_IS_FASTINT(tv)) { + duk_int64_t t = DUK_TVAL_GET_FASTINT(tv); + if (t < 0) { + t = 0; + } +#if (DUK_UINT_MAX <= 0xffffffffUL) + /* Clamping only necessary for 32-bit ints. */ + else if (t > DUK_UINT_MAX) { + t = DUK_UINT_MAX; + } +#endif + return (duk_uint_t) t; + } +#endif + + if (DUK_TVAL_IS_NUMBER(tv)) { + d = DUK_TVAL_GET_NUMBER(tv); + c = (duk_small_int_t) DUK_FPCLASSIFY(d); + if (c == DUK_FP_NAN) { + return 0; + } else if (d < 0.0) { + /* covers -Infinity */ + return (duk_uint_t) 0; + } else if (d > (duk_double_t) DUK_UINT_MAX) { + /* covers +Infinity */ + return (duk_uint_t) DUK_UINT_MAX; + } else { + /* coerce towards zero */ + return (duk_uint_t) d; + } + } + + error_notnumber: + + if (require) { + DUK_ERROR_REQUIRE_TYPE_INDEX(thr, index, "number", DUK_STR_NOT_NUMBER); + /* not reachable */ + } + return 0; +} + +/* + * Stack index validation/normalization and getting a stack duk_tval ptr. + * + * These are called by many API entrypoints so the implementations must be + * fast and "inlined". + * + * There's some repetition because of this; keep the functions in sync. + */ + +DUK_EXTERNAL duk_idx_t duk_normalize_index(duk_context *ctx, duk_idx_t index) { + duk_hthread *thr = (duk_hthread *) ctx; + duk_uidx_t vs_size; + duk_uidx_t uindex; + + DUK_ASSERT_CTX_VALID(ctx); + DUK_ASSERT(DUK_INVALID_INDEX < 0); + + /* Care must be taken to avoid pointer wrapping in the index + * validation. For instance, on a 32-bit platform with 8-byte + * duk_tval the index 0x20000000UL would wrap the memory space + * once. + */ + + /* Assume value stack sizes (in elements) fits into duk_idx_t. */ + DUK_ASSERT(thr->valstack_top >= thr->valstack_bottom); + vs_size = (duk_uidx_t) (thr->valstack_top - thr->valstack_bottom); + DUK_ASSERT_DISABLE(vs_size >= 0); /* unsigned */ + + if (index < 0) { + uindex = vs_size + (duk_uidx_t) index; + } else { + /* since index non-negative */ + DUK_ASSERT(index != DUK_INVALID_INDEX); + uindex = (duk_uidx_t) index; + } + + /* DUK_INVALID_INDEX won't be accepted as a valid index. */ + DUK_ASSERT(vs_size + (duk_uidx_t) DUK_INVALID_INDEX >= vs_size); + + if (DUK_LIKELY(uindex < vs_size)) { + return (duk_idx_t) uindex; + } + return DUK_INVALID_INDEX; +} + +DUK_EXTERNAL duk_idx_t duk_require_normalize_index(duk_context *ctx, duk_idx_t index) { + duk_hthread *thr = (duk_hthread *) ctx; + duk_uidx_t vs_size; + duk_uidx_t uindex; + + DUK_ASSERT_CTX_VALID(ctx); + DUK_ASSERT(DUK_INVALID_INDEX < 0); + + DUK_ASSERT(thr->valstack_top >= thr->valstack_bottom); + vs_size = (duk_uidx_t) (thr->valstack_top - thr->valstack_bottom); + DUK_ASSERT_DISABLE(vs_size >= 0); /* unsigned */ + + if (index < 0) { + uindex = vs_size + (duk_uidx_t) index; + } else { + DUK_ASSERT(index != DUK_INVALID_INDEX); + uindex = (duk_uidx_t) index; + } + + /* DUK_INVALID_INDEX won't be accepted as a valid index. */ + DUK_ASSERT(vs_size + (duk_uidx_t) DUK_INVALID_INDEX >= vs_size); + + if (DUK_LIKELY(uindex < vs_size)) { + return (duk_idx_t) uindex; + } + DUK_ERROR_API_INDEX(thr, index); + return 0; /* unreachable */ +} + +DUK_INTERNAL duk_tval *duk_get_tval(duk_context *ctx, duk_idx_t index) { + duk_hthread *thr = (duk_hthread *) ctx; + duk_uidx_t vs_size; + duk_uidx_t uindex; + + DUK_ASSERT_CTX_VALID(ctx); + DUK_ASSERT(DUK_INVALID_INDEX < 0); + + DUK_ASSERT(thr->valstack_top >= thr->valstack_bottom); + vs_size = (duk_uidx_t) (thr->valstack_top - thr->valstack_bottom); + DUK_ASSERT_DISABLE(vs_size >= 0); /* unsigned */ + + if (index < 0) { + uindex = vs_size + (duk_uidx_t) index; + } else { + DUK_ASSERT(index != DUK_INVALID_INDEX); + uindex = (duk_uidx_t) index; + } + + /* DUK_INVALID_INDEX won't be accepted as a valid index. */ + DUK_ASSERT(vs_size + (duk_uidx_t) DUK_INVALID_INDEX >= vs_size); + + if (DUK_LIKELY(uindex < vs_size)) { + return thr->valstack_bottom + uindex; + } + return NULL; +} + +DUK_INTERNAL duk_tval *duk_require_tval(duk_context *ctx, duk_idx_t index) { + duk_hthread *thr = (duk_hthread *) ctx; + duk_uidx_t vs_size; + duk_uidx_t uindex; + + DUK_ASSERT_CTX_VALID(ctx); + DUK_ASSERT(DUK_INVALID_INDEX < 0); + + DUK_ASSERT(thr->valstack_top >= thr->valstack_bottom); + vs_size = (duk_uidx_t) (thr->valstack_top - thr->valstack_bottom); + DUK_ASSERT_DISABLE(vs_size >= 0); /* unsigned */ + + /* Use unsigned arithmetic to optimize comparison. */ + if (index < 0) { + uindex = vs_size + (duk_uidx_t) index; + } else { + DUK_ASSERT(index != DUK_INVALID_INDEX); + uindex = (duk_uidx_t) index; + } + + /* DUK_INVALID_INDEX won't be accepted as a valid index. */ + DUK_ASSERT(vs_size + (duk_uidx_t) DUK_INVALID_INDEX >= vs_size); + + if (DUK_LIKELY(uindex < vs_size)) { + return thr->valstack_bottom + uindex; + } + DUK_ERROR_API_INDEX(thr, index); + return NULL; +} + +/* Non-critical. */ +DUK_EXTERNAL duk_bool_t duk_is_valid_index(duk_context *ctx, duk_idx_t index) { + DUK_ASSERT_CTX_VALID(ctx); + DUK_ASSERT(DUK_INVALID_INDEX < 0); + + return (duk_normalize_index(ctx, index) >= 0); +} + +/* Non-critical. */ +DUK_EXTERNAL void duk_require_valid_index(duk_context *ctx, duk_idx_t index) { + duk_hthread *thr = (duk_hthread *) ctx; + + DUK_ASSERT_CTX_VALID(ctx); + DUK_ASSERT(DUK_INVALID_INDEX < 0); + + if (duk_normalize_index(ctx, index) < 0) { + DUK_ERROR_API_INDEX(thr, index); + return; /* unreachable */ + } +} + +/* + * Value stack top handling + */ + +DUK_EXTERNAL duk_idx_t duk_get_top(duk_context *ctx) { + duk_hthread *thr = (duk_hthread *) ctx; + + DUK_ASSERT_CTX_VALID(ctx); + + return (duk_idx_t) (thr->valstack_top - thr->valstack_bottom); +} + +/* Set stack top within currently allocated range, but don't reallocate. + * This is performance critical especially for call handling, so whenever + * changing, profile and look at generated code. + */ +DUK_EXTERNAL void duk_set_top(duk_context *ctx, duk_idx_t index) { + duk_hthread *thr = (duk_hthread *) ctx; + duk_uidx_t vs_size; + duk_uidx_t vs_limit; + duk_uidx_t uindex; + duk_tval *tv; + + DUK_ASSERT_CTX_VALID(ctx); + DUK_ASSERT(DUK_INVALID_INDEX < 0); + + DUK_ASSERT(thr->valstack_top >= thr->valstack_bottom); + DUK_ASSERT(thr->valstack_end >= thr->valstack_bottom); + vs_size = (duk_uidx_t) (thr->valstack_top - thr->valstack_bottom); + vs_limit = (duk_uidx_t) (thr->valstack_end - thr->valstack_bottom); + + if (index < 0) { + /* Negative indices are always within allocated stack but + * must not go below zero index. + */ + uindex = vs_size + (duk_uidx_t) index; + } else { + /* Positive index can be higher than valstack top but must + * not go above allocated stack (equality is OK). + */ + uindex = (duk_uidx_t) index; + } + + /* DUK_INVALID_INDEX won't be accepted as a valid index. */ + DUK_ASSERT(vs_size + (duk_uidx_t) DUK_INVALID_INDEX >= vs_size); + DUK_ASSERT(vs_size + (duk_uidx_t) DUK_INVALID_INDEX >= vs_limit); + +#if defined(DUK_USE_VALSTACK_UNSAFE) + DUK_ASSERT(uindex <= vs_limit); + DUK_UNREF(vs_limit); +#else + if (DUK_UNLIKELY(uindex > vs_limit)) { + DUK_ERROR_API_INDEX(thr, index); + return; /* unreachable */ + } +#endif + DUK_ASSERT(uindex <= vs_limit); + + /* Handle change in value stack top. Respect value stack + * initialization policy: 'undefined' above top. Note that + * DECREF may cause a side effect that reallocates valstack, + * so must relookup after DECREF. + */ + + if (uindex >= vs_size) { + /* Stack size increases or stays the same. */ +#if defined(DUK_USE_ASSERTIONS) + duk_uidx_t count; + + count = uindex - vs_size; + while (count != 0) { + count--; + tv = thr->valstack_top + count; + DUK_ASSERT(DUK_TVAL_IS_UNDEFINED(tv)); + } +#endif + thr->valstack_top = thr->valstack_bottom + uindex; + } else { + /* Stack size decreases. */ +#if defined(DUK_USE_REFERENCE_COUNTING) + duk_uidx_t count; + + count = vs_size - uindex; + DUK_ASSERT(count > 0); + while (count > 0) { + count--; + tv = --thr->valstack_top; /* tv -> value just before prev top value; must relookup */ + DUK_ASSERT(tv >= thr->valstack_bottom); + DUK_TVAL_SET_UNDEFINED_UPDREF(thr, tv); /* side effects */ + } +#else /* DUK_USE_REFERENCE_COUNTING */ + duk_uidx_t count; + duk_tval *tv_end; + + count = vs_size - uindex; + tv = thr->valstack_top; + tv_end = tv - count; + DUK_ASSERT(tv > tv_end); + do { + tv--; + DUK_TVAL_SET_UNDEFINED(tv); + } while (tv != tv_end); + thr->valstack_top = tv_end; +#endif /* DUK_USE_REFERENCE_COUNTING */ + } +} + +DUK_EXTERNAL duk_idx_t duk_get_top_index(duk_context *ctx) { + duk_hthread *thr = (duk_hthread *) ctx; + duk_idx_t ret; + + DUK_ASSERT_CTX_VALID(ctx); + + ret = ((duk_idx_t) (thr->valstack_top - thr->valstack_bottom)) - 1; + if (DUK_UNLIKELY(ret < 0)) { + /* Return invalid index; if caller uses this without checking + * in another API call, the index won't map to a valid stack + * entry. + */ + return DUK_INVALID_INDEX; + } + return ret; +} + +DUK_EXTERNAL duk_idx_t duk_require_top_index(duk_context *ctx) { + duk_hthread *thr = (duk_hthread *) ctx; + duk_idx_t ret; + + DUK_ASSERT_CTX_VALID(ctx); + + ret = ((duk_idx_t) (thr->valstack_top - thr->valstack_bottom)) - 1; + if (DUK_UNLIKELY(ret < 0)) { + DUK_ERROR_API_INDEX(thr, -1); + return 0; /* unreachable */ + } + return ret; +} + +/* + * Value stack resizing. + * + * This resizing happens above the current "top": the value stack can be + * grown or shrunk, but the "top" is not affected. The value stack cannot + * be resized to a size below the current "top". + * + * The low level reallocation primitive must carefully recompute all value + * stack pointers, and must also work if ALL pointers are NULL. The resize + * is quite tricky because the valstack realloc may cause a mark-and-sweep, + * which may run finalizers. Running finalizers may resize the valstack + * recursively (the same value stack we're working on). So, after realloc + * returns, we know that the valstack "top" should still be the same (there + * should not be live values above the "top"), but its underlying size and + * pointer may have changed. + */ + +/* XXX: perhaps refactor this to allow caller to specify some parameters, or + * at least a 'compact' flag which skips any spare or round-up .. useful for + * emergency gc. + */ + +DUK_LOCAL duk_bool_t duk__resize_valstack(duk_context *ctx, duk_size_t new_size) { + duk_hthread *thr = (duk_hthread *) ctx; + duk_ptrdiff_t old_bottom_offset; + duk_ptrdiff_t old_top_offset; + duk_ptrdiff_t old_end_offset_post; +#ifdef DUK_USE_DEBUG + duk_ptrdiff_t old_end_offset_pre; + duk_tval *old_valstack_pre; + duk_tval *old_valstack_post; +#endif + duk_tval *new_valstack; + duk_size_t new_alloc_size; + duk_tval *p; + + DUK_ASSERT_CTX_VALID(ctx); + DUK_ASSERT(thr != NULL); + DUK_ASSERT(thr->valstack_bottom >= thr->valstack); + DUK_ASSERT(thr->valstack_top >= thr->valstack_bottom); + DUK_ASSERT(thr->valstack_end >= thr->valstack_top); + DUK_ASSERT((duk_size_t) (thr->valstack_top - thr->valstack) <= new_size); /* can't resize below 'top' */ + DUK_ASSERT(new_size <= thr->valstack_max); /* valstack limit caller has check, prevents wrapping */ + DUK_ASSERT(new_size <= DUK_SIZE_MAX / sizeof(duk_tval)); /* specific assert for wrapping */ + + /* get pointer offsets for tweaking below */ + old_bottom_offset = (((duk_uint8_t *) thr->valstack_bottom) - ((duk_uint8_t *) thr->valstack)); + old_top_offset = (((duk_uint8_t *) thr->valstack_top) - ((duk_uint8_t *) thr->valstack)); +#ifdef DUK_USE_DEBUG + old_end_offset_pre = (((duk_uint8_t *) thr->valstack_end) - ((duk_uint8_t *) thr->valstack)); /* not very useful, used for debugging */ + old_valstack_pre = thr->valstack; +#endif + + /* Allocate a new valstack. + * + * Note: cannot use a plain DUK_REALLOC() because a mark-and-sweep may + * invalidate the original thr->valstack base pointer inside the realloc + * process. See doc/memory-management.rst. + */ + + new_alloc_size = sizeof(duk_tval) * new_size; + new_valstack = (duk_tval *) DUK_REALLOC_INDIRECT(thr->heap, duk_hthread_get_valstack_ptr, (void *) thr, new_alloc_size); + if (!new_valstack) { + /* Because new_size != 0, if condition doesn't need to be + * (new_valstack != NULL || new_size == 0). + */ + DUK_ASSERT(new_size != 0); + DUK_D(DUK_DPRINT("failed to resize valstack to %lu entries (%lu bytes)", + (unsigned long) new_size, (unsigned long) new_alloc_size)); + return 0; + } + + /* Note: the realloc may have triggered a mark-and-sweep which may + * have resized our valstack internally. However, the mark-and-sweep + * MUST NOT leave the stack bottom/top in a different state. Particular + * assumptions and facts: + * + * - The thr->valstack pointer may be different after realloc, + * and the offset between thr->valstack_end <-> thr->valstack + * may have changed. + * - The offset between thr->valstack_bottom <-> thr->valstack + * and thr->valstack_top <-> thr->valstack MUST NOT have changed, + * because mark-and-sweep must adhere to a strict stack policy. + * In other words, logical bottom and top MUST NOT have changed. + * - All values above the top are unreachable but are initialized + * to UNDEFINED, up to the post-realloc valstack_end. + * - 'old_end_offset' must be computed after realloc to be correct. + */ + + DUK_ASSERT((((duk_uint8_t *) thr->valstack_bottom) - ((duk_uint8_t *) thr->valstack)) == old_bottom_offset); + DUK_ASSERT((((duk_uint8_t *) thr->valstack_top) - ((duk_uint8_t *) thr->valstack)) == old_top_offset); + + /* success, fixup pointers */ + old_end_offset_post = (((duk_uint8_t *) thr->valstack_end) - ((duk_uint8_t *) thr->valstack)); /* must be computed after realloc */ +#ifdef DUK_USE_DEBUG + old_valstack_post = thr->valstack; +#endif + thr->valstack = new_valstack; + thr->valstack_end = new_valstack + new_size; +#if !defined(DUK_USE_PREFER_SIZE) + thr->valstack_size = new_size; +#endif + thr->valstack_bottom = (duk_tval *) (void *) ((duk_uint8_t *) new_valstack + old_bottom_offset); + thr->valstack_top = (duk_tval *) (void *) ((duk_uint8_t *) new_valstack + old_top_offset); + + DUK_ASSERT(thr->valstack_bottom >= thr->valstack); + DUK_ASSERT(thr->valstack_top >= thr->valstack_bottom); + DUK_ASSERT(thr->valstack_end >= thr->valstack_top); + + /* useful for debugging */ +#ifdef DUK_USE_DEBUG + if (old_end_offset_pre != old_end_offset_post) { + DUK_D(DUK_DPRINT("valstack was resized during valstack_resize(), probably by mark-and-sweep; " + "end offset changed: %lu -> %lu", + (unsigned long) old_end_offset_pre, + (unsigned long) old_end_offset_post)); + } + if (old_valstack_pre != old_valstack_post) { + DUK_D(DUK_DPRINT("valstack pointer changed during valstack_resize(), probably by mark-and-sweep: %p -> %p", + (void *) old_valstack_pre, + (void *) old_valstack_post)); + } +#endif + + DUK_DD(DUK_DDPRINT("resized valstack to %lu elements (%lu bytes), bottom=%ld, top=%ld, " + "new pointers: start=%p end=%p bottom=%p top=%p", + (unsigned long) new_size, (unsigned long) new_alloc_size, + (long) (thr->valstack_bottom - thr->valstack), + (long) (thr->valstack_top - thr->valstack), + (void *) thr->valstack, (void *) thr->valstack_end, + (void *) thr->valstack_bottom, (void *) thr->valstack_top)); + + /* Init newly allocated slots (only). */ + p = (duk_tval *) (void *) ((duk_uint8_t *) thr->valstack + old_end_offset_post); + while (p < thr->valstack_end) { + /* Never executed if new size is smaller. */ + DUK_TVAL_SET_UNDEFINED(p); + p++; + } + + /* Assert for value stack initialization policy. */ +#if defined(DUK_USE_ASSERTIONS) + p = thr->valstack_top; + while (p < thr->valstack_end) { + DUK_ASSERT(DUK_TVAL_IS_UNDEFINED(p)); + p++; + } +#endif + + return 1; +} + +DUK_INTERNAL +duk_bool_t duk_valstack_resize_raw(duk_context *ctx, + duk_size_t min_new_size, + duk_small_uint_t flags) { + duk_hthread *thr = (duk_hthread *) ctx; + duk_size_t old_size; + duk_size_t new_size; + duk_bool_t is_shrink = 0; + duk_small_uint_t shrink_flag = (flags & DUK_VSRESIZE_FLAG_SHRINK); + duk_small_uint_t compact_flag = (flags & DUK_VSRESIZE_FLAG_COMPACT); + duk_small_uint_t throw_flag = (flags & DUK_VSRESIZE_FLAG_THROW); + + DUK_DDD(DUK_DDDPRINT("check valstack resize: min_new_size=%lu, curr_size=%ld, curr_top=%ld, " + "curr_bottom=%ld, shrink=%d, compact=%d, throw=%d", + (unsigned long) min_new_size, + (long) (thr->valstack_end - thr->valstack), + (long) (thr->valstack_top - thr->valstack), + (long) (thr->valstack_bottom - thr->valstack), + (int) shrink_flag, (int) compact_flag, (int) throw_flag)); + + DUK_ASSERT_CTX_VALID(ctx); + DUK_ASSERT(thr != NULL); + DUK_ASSERT(thr->valstack_bottom >= thr->valstack); + DUK_ASSERT(thr->valstack_top >= thr->valstack_bottom); + DUK_ASSERT(thr->valstack_end >= thr->valstack_top); + +#if defined(DUK_USE_PREFER_SIZE) + old_size = (duk_size_t) (thr->valstack_end - thr->valstack); +#else + DUK_ASSERT((duk_size_t) (thr->valstack_end - thr->valstack) == thr->valstack_size); + old_size = thr->valstack_size; +#endif + + if (min_new_size <= old_size) { + is_shrink = 1; + if (!shrink_flag || + old_size - min_new_size < DUK_VALSTACK_SHRINK_THRESHOLD) { + DUK_DDD(DUK_DDDPRINT("no need to grow or shrink valstack")); + return 1; + } + } + + new_size = min_new_size; + if (!compact_flag) { + if (is_shrink) { + /* shrink case; leave some spare */ + new_size += DUK_VALSTACK_SHRINK_SPARE; + } + + /* round up roughly to next 'grow step' */ + new_size = (new_size / DUK_VALSTACK_GROW_STEP + 1) * DUK_VALSTACK_GROW_STEP; + } + + DUK_DD(DUK_DDPRINT("want to %s valstack: %lu -> %lu elements (min_new_size %lu)", + (const char *) (new_size > old_size ? "grow" : "shrink"), + (unsigned long) old_size, (unsigned long) new_size, + (unsigned long) min_new_size)); + + if (new_size > thr->valstack_max) { + /* Note: may be triggered even if minimal new_size would not reach the limit, + * plan limit accordingly (taking DUK_VALSTACK_GROW_STEP into account). + */ + if (throw_flag) { + DUK_ERROR_RANGE(thr, DUK_STR_VALSTACK_LIMIT); + } else { + return 0; + } + } + + /* + * When resizing the valstack, a mark-and-sweep may be triggered for + * the allocation of the new valstack. If the mark-and-sweep needs + * to use our thread for something, it may cause *the same valstack* + * to be resized recursively. This happens e.g. when mark-and-sweep + * finalizers are called. This is taken into account carefully in + * duk__resize_valstack(). + * + * 'new_size' is known to be <= valstack_max, which ensures that + * size_t and pointer arithmetic won't wrap in duk__resize_valstack(). + */ + + if (!duk__resize_valstack(ctx, new_size)) { + if (is_shrink) { + DUK_DD(DUK_DDPRINT("valstack resize failed, but is a shrink, ignore")); + return 1; + } + + DUK_DD(DUK_DDPRINT("valstack resize failed")); + + if (throw_flag) { + DUK_ERROR_ALLOC_DEFMSG(thr); + } else { + return 0; + } + } + + DUK_DDD(DUK_DDDPRINT("valstack resize successful")); + return 1; +} + +DUK_EXTERNAL duk_bool_t duk_check_stack(duk_context *ctx, duk_idx_t extra) { + duk_hthread *thr = (duk_hthread *) ctx; + duk_size_t min_new_size; + + DUK_ASSERT_CTX_VALID(ctx); + DUK_ASSERT(thr != NULL); + + if (DUK_UNLIKELY(extra < 0)) { + /* Clamping to zero makes the API more robust to calling code + * calculation errors. + */ + extra = 0; + } + + min_new_size = (thr->valstack_top - thr->valstack) + extra + DUK_VALSTACK_INTERNAL_EXTRA; + return duk_valstack_resize_raw(ctx, + min_new_size, /* min_new_size */ + 0 /* no shrink */ | /* flags */ + 0 /* no compact */ | + 0 /* no throw */); +} + +DUK_EXTERNAL void duk_require_stack(duk_context *ctx, duk_idx_t extra) { + duk_hthread *thr = (duk_hthread *) ctx; + duk_size_t min_new_size; + + DUK_ASSERT_CTX_VALID(ctx); + DUK_ASSERT(thr != NULL); + + if (DUK_UNLIKELY(extra < 0)) { + /* Clamping to zero makes the API more robust to calling code + * calculation errors. + */ + extra = 0; + } + + min_new_size = (thr->valstack_top - thr->valstack) + extra + DUK_VALSTACK_INTERNAL_EXTRA; + (void) duk_valstack_resize_raw(ctx, + min_new_size, /* min_new_size */ + 0 /* no shrink */ | /* flags */ + 0 /* no compact */ | + DUK_VSRESIZE_FLAG_THROW); +} + +DUK_EXTERNAL duk_bool_t duk_check_stack_top(duk_context *ctx, duk_idx_t top) { + duk_size_t min_new_size; + + DUK_ASSERT_CTX_VALID(ctx); + + if (DUK_UNLIKELY(top < 0)) { + /* Clamping to zero makes the API more robust to calling code + * calculation errors. + */ + top = 0; + } + + min_new_size = top + DUK_VALSTACK_INTERNAL_EXTRA; + return duk_valstack_resize_raw(ctx, + min_new_size, /* min_new_size */ + 0 /* no shrink */ | /* flags */ + 0 /* no compact */ | + 0 /* no throw */); +} + +DUK_EXTERNAL void duk_require_stack_top(duk_context *ctx, duk_idx_t top) { + duk_size_t min_new_size; + + DUK_ASSERT_CTX_VALID(ctx); + + if (DUK_UNLIKELY(top < 0)) { + /* Clamping to zero makes the API more robust to calling code + * calculation errors. + */ + top = 0; + } + + min_new_size = top + DUK_VALSTACK_INTERNAL_EXTRA; + (void) duk_valstack_resize_raw(ctx, + min_new_size, /* min_new_size */ + 0 /* no shrink */ | /* flags */ + 0 /* no compact */ | + DUK_VSRESIZE_FLAG_THROW); +} + +/* + * Basic stack manipulation: swap, dup, insert, replace, etc + */ + +DUK_EXTERNAL void duk_swap(duk_context *ctx, duk_idx_t index1, duk_idx_t index2) { + duk_tval *tv1; + duk_tval *tv2; + duk_tval tv_tmp; + + DUK_ASSERT_CTX_VALID(ctx); + + tv1 = duk_require_tval(ctx, index1); + DUK_ASSERT(tv1 != NULL); + tv2 = duk_require_tval(ctx, index2); + DUK_ASSERT(tv2 != NULL); + + /* If tv1==tv2 this is a NOP, no check is needed */ + DUK_TVAL_SET_TVAL(&tv_tmp, tv1); + DUK_TVAL_SET_TVAL(tv1, tv2); + DUK_TVAL_SET_TVAL(tv2, &tv_tmp); +} + +DUK_EXTERNAL void duk_swap_top(duk_context *ctx, duk_idx_t index) { + DUK_ASSERT_CTX_VALID(ctx); + + duk_swap(ctx, index, -1); +} + +DUK_EXTERNAL void duk_dup(duk_context *ctx, duk_idx_t from_index) { + duk_hthread *thr; + duk_tval *tv_from; + duk_tval *tv_to; + + DUK_ASSERT_CTX_VALID(ctx); + thr = (duk_hthread *) ctx; + DUK__CHECK_SPACE(); + + tv_from = duk_require_tval(ctx, from_index); + tv_to = thr->valstack_top++; + DUK_ASSERT(tv_from != NULL); + DUK_ASSERT(tv_to != NULL); + DUK_TVAL_SET_TVAL(tv_to, tv_from); + DUK_TVAL_INCREF(thr, tv_to); /* no side effects */ +} + +DUK_EXTERNAL void duk_dup_top(duk_context *ctx) { + duk_hthread *thr; + duk_tval *tv_from; + duk_tval *tv_to; + + DUK_ASSERT_CTX_VALID(ctx); + thr = (duk_hthread *) ctx; + DUK__CHECK_SPACE(); + + if (thr->valstack_top - thr->valstack_bottom <= 0) { + DUK_ERROR_API_INDEX(thr, -1); + return; /* unreachable */ + } + tv_from = thr->valstack_top - 1; + tv_to = thr->valstack_top++; + DUK_ASSERT(tv_from != NULL); + DUK_ASSERT(tv_to != NULL); + DUK_TVAL_SET_TVAL(tv_to, tv_from); + DUK_TVAL_INCREF(thr, tv_to); /* no side effects */ +} + +DUK_EXTERNAL void duk_insert(duk_context *ctx, duk_idx_t to_index) { + duk_tval *p; + duk_tval *q; + duk_tval tv_tmp; + duk_size_t nbytes; + + DUK_ASSERT_CTX_VALID(ctx); + + p = duk_require_tval(ctx, to_index); + DUK_ASSERT(p != NULL); + q = duk_require_tval(ctx, -1); + DUK_ASSERT(q != NULL); + + DUK_ASSERT(q >= p); + + /* nbytes + * <---------> + * [ ... | p | x | x | q ] + * => [ ... | q | p | x | x ] + */ + + nbytes = (duk_size_t) (((duk_uint8_t *) q) - ((duk_uint8_t *) p)); /* Note: 'q' is top-1 */ + + DUK_DDD(DUK_DDDPRINT("duk_insert: to_index=%ld, p=%p, q=%p, nbytes=%lu", + (long) to_index, (void *) p, (void *) q, (unsigned long) nbytes)); + + /* No net refcount changes. */ + + if (nbytes > 0) { + DUK_TVAL_SET_TVAL(&tv_tmp, q); + DUK_ASSERT(nbytes > 0); + DUK_MEMMOVE((void *) (p + 1), (const void *) p, (size_t) nbytes); + DUK_TVAL_SET_TVAL(p, &tv_tmp); + } else { + /* nop: insert top to top */ + DUK_ASSERT(nbytes == 0); + DUK_ASSERT(p == q); + } +} + +DUK_EXTERNAL void duk_replace(duk_context *ctx, duk_idx_t to_index) { + duk_hthread *thr = (duk_hthread *) ctx; + duk_tval *tv1; + duk_tval *tv2; + duk_tval tv_tmp; + + DUK_ASSERT_CTX_VALID(ctx); + + tv1 = duk_require_tval(ctx, -1); + DUK_ASSERT(tv1 != NULL); + tv2 = duk_require_tval(ctx, to_index); + DUK_ASSERT(tv2 != NULL); + + /* For tv1 == tv2, both pointing to stack top, the end result + * is same as duk_pop(ctx). + */ + DUK_TVAL_SET_TVAL(&tv_tmp, tv2); + DUK_TVAL_SET_TVAL(tv2, tv1); + DUK_TVAL_SET_UNDEFINED(tv1); + thr->valstack_top--; + DUK_TVAL_DECREF(thr, &tv_tmp); /* side effects */ +} + +DUK_EXTERNAL void duk_copy(duk_context *ctx, duk_idx_t from_index, duk_idx_t to_index) { + duk_hthread *thr = (duk_hthread *) ctx; + duk_tval *tv1; + duk_tval *tv2; + + DUK_ASSERT_CTX_VALID(ctx); + DUK_UNREF(thr); /* w/o refcounting */ + + tv1 = duk_require_tval(ctx, from_index); + DUK_ASSERT(tv1 != NULL); + tv2 = duk_require_tval(ctx, to_index); + DUK_ASSERT(tv2 != NULL); + + /* For tv1 == tv2, this is a no-op (no explicit check needed). */ + DUK_TVAL_SET_TVAL_UPDREF(thr, tv2, tv1); /* side effects */ +} + +DUK_EXTERNAL void duk_remove(duk_context *ctx, duk_idx_t index) { + duk_hthread *thr = (duk_hthread *) ctx; + duk_tval *p; + duk_tval *q; +#ifdef DUK_USE_REFERENCE_COUNTING + duk_tval tv_tmp; +#endif + duk_size_t nbytes; + + DUK_ASSERT_CTX_VALID(ctx); + + p = duk_require_tval(ctx, index); + DUK_ASSERT(p != NULL); + q = duk_require_tval(ctx, -1); + DUK_ASSERT(q != NULL); + + DUK_ASSERT(q >= p); + + /* nbytes zero size case + * <---------> + * [ ... | p | x | x | q ] [ ... | p==q ] + * => [ ... | x | x | q ] [ ... ] + */ + +#ifdef DUK_USE_REFERENCE_COUNTING + /* use a temp: decref only when valstack reachable values are correct */ + DUK_TVAL_SET_TVAL(&tv_tmp, p); +#endif + + nbytes = (duk_size_t) (((duk_uint8_t *) q) - ((duk_uint8_t *) p)); /* Note: 'q' is top-1 */ + DUK_MEMMOVE((void *) p, (const void *) (p + 1), (size_t) nbytes); /* zero size not an issue: pointers are valid */ + + DUK_TVAL_SET_UNDEFINED(q); + thr->valstack_top--; + +#ifdef DUK_USE_REFERENCE_COUNTING + DUK_TVAL_DECREF(thr, &tv_tmp); /* side effects */ +#endif +} + +/* + * Stack slice primitives + */ + +DUK_EXTERNAL void duk_xcopymove_raw(duk_context *to_ctx, duk_context *from_ctx, duk_idx_t count, duk_bool_t is_copy) { + duk_hthread *to_thr = (duk_hthread *) to_ctx; + duk_hthread *from_thr = (duk_hthread *) from_ctx; + void *src; + duk_size_t nbytes; + duk_tval *p; + duk_tval *q; + + /* XXX: several pointer comparison issues here */ + + DUK_ASSERT_CTX_VALID(to_ctx); + DUK_ASSERT_CTX_VALID(from_ctx); + DUK_ASSERT(to_ctx != NULL); + DUK_ASSERT(from_ctx != NULL); + + if (to_ctx == from_ctx) { + DUK_ERROR_API(to_thr, DUK_STR_INVALID_CONTEXT); + return; + } + if ((count < 0) || + (count > (duk_idx_t) to_thr->valstack_max)) { + /* Maximum value check ensures 'nbytes' won't wrap below. */ + DUK_ERROR_API(to_thr, DUK_STR_INVALID_COUNT); + return; + } + + nbytes = sizeof(duk_tval) * count; + if (nbytes == 0) { + return; + } + DUK_ASSERT(to_thr->valstack_top <= to_thr->valstack_end); + if ((duk_size_t) ((duk_uint8_t *) to_thr->valstack_end - (duk_uint8_t *) to_thr->valstack_top) < nbytes) { + DUK_ERROR_API(to_thr, DUK_STR_PUSH_BEYOND_ALLOC_STACK); + } + src = (void *) ((duk_uint8_t *) from_thr->valstack_top - nbytes); + if (src < (void *) from_thr->valstack_bottom) { + DUK_ERROR_API(to_thr, DUK_STR_INVALID_COUNT); + } + + /* copy values (no overlap even if to_ctx == from_ctx; that's not + * allowed now anyway) + */ + DUK_ASSERT(nbytes > 0); + DUK_MEMCPY((void *) to_thr->valstack_top, (const void *) src, (size_t) nbytes); + + p = to_thr->valstack_top; + to_thr->valstack_top = (duk_tval *) (void *) (((duk_uint8_t *) p) + nbytes); + + if (is_copy) { + /* Incref copies, keep originals. */ + q = to_thr->valstack_top; + while (p < q) { + DUK_TVAL_INCREF(to_thr, p); /* no side effects */ + p++; + } + } else { + /* No net refcount change. */ + p = from_thr->valstack_top; + q = (duk_tval *) (void *) (((duk_uint8_t *) p) - nbytes); + from_thr->valstack_top = q; + + while (p > q) { + p--; + DUK_TVAL_SET_UNDEFINED(p); + /* XXX: fast primitive to set a bunch of values to UNDEFINED */ + } + } +} + +/* + * Get/require + */ + +DUK_EXTERNAL void duk_require_undefined(duk_context *ctx, duk_idx_t index) { + duk_hthread *thr = (duk_hthread *) ctx; + duk_tval *tv; + + DUK_ASSERT_CTX_VALID(ctx); + + tv = duk_get_tval(ctx, index); + if (tv && DUK_TVAL_IS_UNDEFINED(tv)) { + return; + } + DUK_ERROR_REQUIRE_TYPE_INDEX(thr, index, "undefined", DUK_STR_NOT_UNDEFINED); + return; /* not reachable */ +} + +DUK_EXTERNAL void duk_require_null(duk_context *ctx, duk_idx_t index) { + duk_hthread *thr = (duk_hthread *) ctx; + duk_tval *tv; + + DUK_ASSERT_CTX_VALID(ctx); + + tv = duk_get_tval(ctx, index); + if (tv && DUK_TVAL_IS_NULL(tv)) { + return; + } + DUK_ERROR_REQUIRE_TYPE_INDEX(thr, index, "null", DUK_STR_NOT_NULL); + return; /* not reachable */ +} + +DUK_EXTERNAL duk_bool_t duk_get_boolean(duk_context *ctx, duk_idx_t index) { + duk_bool_t ret = 0; /* default: false */ + duk_tval *tv; + + DUK_ASSERT_CTX_VALID(ctx); + + tv = duk_get_tval(ctx, index); + if (tv && DUK_TVAL_IS_BOOLEAN(tv)) { + ret = DUK_TVAL_GET_BOOLEAN(tv); + } + + DUK_ASSERT(ret == 0 || ret == 1); + return ret; +} + +DUK_EXTERNAL duk_bool_t duk_require_boolean(duk_context *ctx, duk_idx_t index) { + duk_hthread *thr = (duk_hthread *) ctx; + duk_tval *tv; + + DUK_ASSERT_CTX_VALID(ctx); + + tv = duk_get_tval(ctx, index); + if (tv && DUK_TVAL_IS_BOOLEAN(tv)) { + duk_bool_t ret = DUK_TVAL_GET_BOOLEAN(tv); + DUK_ASSERT(ret == 0 || ret == 1); + return ret; + } + DUK_ERROR_REQUIRE_TYPE_INDEX(thr, index, "boolean", DUK_STR_NOT_BOOLEAN); + return 0; /* not reachable */ +} + +DUK_EXTERNAL duk_double_t duk_get_number(duk_context *ctx, duk_idx_t index) { + duk_double_union ret; + duk_tval *tv; + + DUK_ASSERT_CTX_VALID(ctx); + + ret.d = DUK_DOUBLE_NAN; /* default: NaN */ + tv = duk_get_tval(ctx, index); + if (tv && DUK_TVAL_IS_NUMBER(tv)) { + ret.d = DUK_TVAL_GET_NUMBER(tv); + } + + /* + * Number should already be in NaN-normalized form, but let's + * normalize anyway. + */ + + DUK_DBLUNION_NORMALIZE_NAN_CHECK(&ret); + return ret.d; +} + +DUK_EXTERNAL duk_double_t duk_require_number(duk_context *ctx, duk_idx_t index) { + duk_hthread *thr = (duk_hthread *) ctx; + duk_tval *tv; + + DUK_ASSERT_CTX_VALID(ctx); + + tv = duk_get_tval(ctx, index); + if (tv && DUK_TVAL_IS_NUMBER(tv)) { + duk_double_union ret; + ret.d = DUK_TVAL_GET_NUMBER(tv); + + /* + * Number should already be in NaN-normalized form, + * but let's normalize anyway. + */ + + DUK_DBLUNION_NORMALIZE_NAN_CHECK(&ret); + return ret.d; + } + DUK_ERROR_REQUIRE_TYPE_INDEX(thr, index, "number", DUK_STR_NOT_NUMBER); + return DUK_DOUBLE_NAN; /* not reachable */ +} + +DUK_EXTERNAL duk_int_t duk_get_int(duk_context *ctx, duk_idx_t index) { + /* Custom coercion for API */ + DUK_ASSERT_CTX_VALID(ctx); + return (duk_int_t) duk__api_coerce_d2i(ctx, index, 0 /*require*/); +} + +DUK_EXTERNAL duk_uint_t duk_get_uint(duk_context *ctx, duk_idx_t index) { + /* Custom coercion for API */ + DUK_ASSERT_CTX_VALID(ctx); + return (duk_uint_t) duk__api_coerce_d2ui(ctx, index, 0 /*require*/); +} + +DUK_EXTERNAL duk_int_t duk_require_int(duk_context *ctx, duk_idx_t index) { + /* Custom coercion for API */ + DUK_ASSERT_CTX_VALID(ctx); + return (duk_int_t) duk__api_coerce_d2i(ctx, index, 1 /*require*/); +} + +DUK_EXTERNAL duk_uint_t duk_require_uint(duk_context *ctx, duk_idx_t index) { + /* Custom coercion for API */ + DUK_ASSERT_CTX_VALID(ctx); + return (duk_uint_t) duk__api_coerce_d2ui(ctx, index, 1 /*require*/); +} + +DUK_EXTERNAL const char *duk_get_lstring(duk_context *ctx, duk_idx_t index, duk_size_t *out_len) { + const char *ret; + duk_tval *tv; + + DUK_ASSERT_CTX_VALID(ctx); + + /* default: NULL, length 0 */ + ret = NULL; + if (out_len) { + *out_len = 0; + } + + tv = duk_get_tval(ctx, index); + if (tv && DUK_TVAL_IS_STRING(tv)) { + /* Here we rely on duk_hstring instances always being zero + * terminated even if the actual string is not. + */ + duk_hstring *h = DUK_TVAL_GET_STRING(tv); + DUK_ASSERT(h != NULL); + ret = (const char *) DUK_HSTRING_GET_DATA(h); + if (out_len) { + *out_len = DUK_HSTRING_GET_BYTELEN(h); + } + } + + return ret; +} + +DUK_EXTERNAL const char *duk_require_lstring(duk_context *ctx, duk_idx_t index, duk_size_t *out_len) { + duk_hthread *thr = (duk_hthread *) ctx; + const char *ret; + + DUK_ASSERT_CTX_VALID(ctx); + + /* Note: this check relies on the fact that even a zero-size string + * has a non-NULL pointer. + */ + ret = duk_get_lstring(ctx, index, out_len); + if (ret) { + return ret; + } + DUK_ERROR_REQUIRE_TYPE_INDEX(thr, index, "string", DUK_STR_NOT_STRING); + return NULL; /* not reachable */ +} + +DUK_EXTERNAL const char *duk_get_string(duk_context *ctx, duk_idx_t index) { + DUK_ASSERT_CTX_VALID(ctx); + + return duk_get_lstring(ctx, index, NULL); +} + +DUK_EXTERNAL const char *duk_require_string(duk_context *ctx, duk_idx_t index) { + DUK_ASSERT_CTX_VALID(ctx); + + return duk_require_lstring(ctx, index, NULL); +} + +DUK_EXTERNAL void *duk_get_pointer(duk_context *ctx, duk_idx_t index) { + duk_tval *tv; + + DUK_ASSERT_CTX_VALID(ctx); + + tv = duk_get_tval(ctx, index); + if (tv && DUK_TVAL_IS_POINTER(tv)) { + void *p = DUK_TVAL_GET_POINTER(tv); /* may be NULL */ + return (void *) p; + } + + return NULL; +} + +DUK_EXTERNAL void *duk_require_pointer(duk_context *ctx, duk_idx_t index) { + duk_hthread *thr = (duk_hthread *) ctx; + duk_tval *tv; + + DUK_ASSERT_CTX_VALID(ctx); + + /* Note: here we must be wary of the fact that a pointer may be + * valid and be a NULL. + */ + tv = duk_get_tval(ctx, index); + if (tv && DUK_TVAL_IS_POINTER(tv)) { + void *p = DUK_TVAL_GET_POINTER(tv); /* may be NULL */ + return (void *) p; + } + DUK_ERROR_REQUIRE_TYPE_INDEX(thr, index, "pointer", DUK_STR_NOT_POINTER); + return NULL; /* not reachable */ +} + +#if 0 /*unused*/ +DUK_INTERNAL void *duk_get_voidptr(duk_context *ctx, duk_idx_t index) { + duk_tval *tv; + + DUK_ASSERT_CTX_VALID(ctx); + + tv = duk_get_tval(ctx, index); + if (tv && DUK_TVAL_IS_HEAP_ALLOCATED(tv)) { + duk_heaphdr *h = DUK_TVAL_GET_HEAPHDR(tv); + DUK_ASSERT(h != NULL); + return (void *) h; + } + + return NULL; +} +#endif + +DUK_LOCAL void *duk__get_buffer_helper(duk_context *ctx, duk_idx_t index, duk_size_t *out_size, duk_bool_t throw_flag) { + duk_hthread *thr = (duk_hthread *) ctx; + duk_tval *tv; + + DUK_ASSERT_CTX_VALID(ctx); + DUK_UNREF(thr); + + if (out_size != NULL) { + *out_size = 0; + } + + tv = duk_get_tval(ctx, index); + if (tv && DUK_TVAL_IS_BUFFER(tv)) { + duk_hbuffer *h = DUK_TVAL_GET_BUFFER(tv); + DUK_ASSERT(h != NULL); + if (out_size) { + *out_size = DUK_HBUFFER_GET_SIZE(h); + } + return (void *) DUK_HBUFFER_GET_DATA_PTR(thr->heap, h); /* may be NULL (but only if size is 0) */ + } + + if (throw_flag) { + DUK_ERROR_REQUIRE_TYPE_INDEX(thr, index, "buffer", DUK_STR_NOT_BUFFER); + } + return NULL; +} + +DUK_EXTERNAL void *duk_get_buffer(duk_context *ctx, duk_idx_t index, duk_size_t *out_size) { + return duk__get_buffer_helper(ctx, index, out_size, 0 /*throw_flag*/); +} + +DUK_EXTERNAL void *duk_require_buffer(duk_context *ctx, duk_idx_t index, duk_size_t *out_size) { + return duk__get_buffer_helper(ctx, index, out_size, 1 /*throw_flag*/); +} + +DUK_LOCAL void *duk__get_buffer_data_helper(duk_context *ctx, duk_idx_t index, duk_size_t *out_size, duk_bool_t throw_flag) { + duk_hthread *thr = (duk_hthread *) ctx; + duk_tval *tv; + + DUK_ASSERT_CTX_VALID(ctx); + DUK_UNREF(thr); + + if (out_size != NULL) { + *out_size = 0; + } + + tv = duk_get_tval(ctx, index); + if (tv == NULL) { + goto fail; + } + + if (DUK_TVAL_IS_BUFFER(tv)) { + duk_hbuffer *h = DUK_TVAL_GET_BUFFER(tv); + DUK_ASSERT(h != NULL); + if (out_size) { + *out_size = DUK_HBUFFER_GET_SIZE(h); + } + return (void *) DUK_HBUFFER_GET_DATA_PTR(thr->heap, h); /* may be NULL (but only if size is 0) */ + } else if (DUK_TVAL_IS_OBJECT(tv)) { + duk_hobject *h = DUK_TVAL_GET_OBJECT(tv); + DUK_ASSERT(h != NULL); + if (DUK_HOBJECT_IS_BUFFEROBJECT(h)) { + /* XXX: this is probably a useful shared helper: for a + * duk_hbufferobject, get a validated buffer pointer/length. + */ + duk_hbufferobject *h_bufobj = (duk_hbufferobject *) h; + DUK_ASSERT_HBUFFEROBJECT_VALID(h_bufobj); + + if (h_bufobj->buf != NULL && + DUK_HBUFFEROBJECT_VALID_SLICE(h_bufobj)) { + duk_uint8_t *p; + + p = (duk_uint8_t *) DUK_HBUFFER_GET_DATA_PTR(thr->heap, h_bufobj->buf); + if (out_size != NULL) { + *out_size = (duk_size_t) h_bufobj->length; + } + return (void *) (p + h_bufobj->offset); + } + /* if slice not fully valid, treat as error */ + } + } + + fail: + if (throw_flag) { + DUK_ERROR_REQUIRE_TYPE_INDEX(thr, index, "buffer", DUK_STR_NOT_BUFFER); + } + return NULL; +} + +DUK_EXTERNAL void *duk_get_buffer_data(duk_context *ctx, duk_idx_t index, duk_size_t *out_size) { + return duk__get_buffer_data_helper(ctx, index, out_size, 0 /*throw_flag*/); +} + +DUK_EXTERNAL void *duk_require_buffer_data(duk_context *ctx, duk_idx_t index, duk_size_t *out_size) { + return duk__get_buffer_data_helper(ctx, index, out_size, 1 /*throw_flag*/); +} + +/* Raw helper for getting a value from the stack, checking its tag. + * The tag cannot be a number because numbers don't have an internal + * tag in the packed representation. + */ + +DUK_LOCAL duk_heaphdr *duk__get_tagged_heaphdr_raw(duk_context *ctx, duk_idx_t index, duk_uint_t tag) { + duk_tval *tv; + + DUK_ASSERT_CTX_VALID(ctx); + + tv = duk_get_tval(ctx, index); + if (tv && (DUK_TVAL_GET_TAG(tv) == tag)) { + duk_heaphdr *ret; + ret = DUK_TVAL_GET_HEAPHDR(tv); + DUK_ASSERT(ret != NULL); /* tagged null pointers should never occur */ + return ret; + } + + return (duk_heaphdr *) NULL; +} + +DUK_INTERNAL duk_hstring *duk_get_hstring(duk_context *ctx, duk_idx_t index) { + return (duk_hstring *) duk__get_tagged_heaphdr_raw(ctx, index, DUK_TAG_STRING); +} + +DUK_INTERNAL duk_hstring *duk_require_hstring(duk_context *ctx, duk_idx_t index) { + duk_heaphdr *h; + h = duk__get_tagged_heaphdr_raw(ctx, index, DUK_TAG_STRING); + if (h == NULL) { + DUK_ERROR_REQUIRE_TYPE_INDEX(ctx, index, "string", DUK_STR_NOT_STRING); + } + return (duk_hstring *) h; +} + +DUK_INTERNAL duk_hobject *duk_get_hobject(duk_context *ctx, duk_idx_t index) { + return (duk_hobject *) duk__get_tagged_heaphdr_raw(ctx, index, DUK_TAG_OBJECT); +} + +DUK_INTERNAL duk_hobject *duk_require_hobject(duk_context *ctx, duk_idx_t index) { + duk_heaphdr *h; + h = duk__get_tagged_heaphdr_raw(ctx, index, DUK_TAG_OBJECT); + if (h == NULL) { + DUK_ERROR_REQUIRE_TYPE_INDEX(ctx, index, "object", DUK_STR_NOT_OBJECT); + } + return (duk_hobject *) h; +} + +DUK_INTERNAL duk_hbuffer *duk_get_hbuffer(duk_context *ctx, duk_idx_t index) { + return (duk_hbuffer *) duk__get_tagged_heaphdr_raw(ctx, index, DUK_TAG_BUFFER); +} + +DUK_INTERNAL duk_hbuffer *duk_require_hbuffer(duk_context *ctx, duk_idx_t index) { + duk_heaphdr *h; + h = duk__get_tagged_heaphdr_raw(ctx, index, DUK_TAG_BUFFER); + if (h == NULL) { + DUK_ERROR_REQUIRE_TYPE_INDEX(ctx, index, "buffer", DUK_STR_NOT_BUFFER); + } + return (duk_hbuffer *) h; +} + +DUK_INTERNAL duk_hthread *duk_get_hthread(duk_context *ctx, duk_idx_t index) { + duk_hobject *h = (duk_hobject *) duk__get_tagged_heaphdr_raw(ctx, index, DUK_TAG_OBJECT); + if (h != NULL && !DUK_HOBJECT_IS_THREAD(h)) { + h = NULL; + } + return (duk_hthread *) h; +} + +DUK_INTERNAL duk_hthread *duk_require_hthread(duk_context *ctx, duk_idx_t index) { + duk_hthread *thr = (duk_hthread *) ctx; + duk_hobject *h = (duk_hobject *) duk__get_tagged_heaphdr_raw(ctx, index, DUK_TAG_OBJECT); + if (!(h != NULL && DUK_HOBJECT_IS_THREAD(h))) { + DUK_ERROR_REQUIRE_TYPE_INDEX(thr, index, "thread", DUK_STR_NOT_THREAD); + } + return (duk_hthread *) h; +} + +DUK_INTERNAL duk_hcompiledfunction *duk_get_hcompiledfunction(duk_context *ctx, duk_idx_t index) { + duk_hobject *h = (duk_hobject *) duk__get_tagged_heaphdr_raw(ctx, index, DUK_TAG_OBJECT); + if (h != NULL && !DUK_HOBJECT_IS_COMPILEDFUNCTION(h)) { + h = NULL; + } + return (duk_hcompiledfunction *) h; +} + +DUK_INTERNAL duk_hcompiledfunction *duk_require_hcompiledfunction(duk_context *ctx, duk_idx_t index) { + duk_hthread *thr = (duk_hthread *) ctx; + duk_hobject *h = (duk_hobject *) duk__get_tagged_heaphdr_raw(ctx, index, DUK_TAG_OBJECT); + if (!(h != NULL && DUK_HOBJECT_IS_COMPILEDFUNCTION(h))) { + DUK_ERROR_REQUIRE_TYPE_INDEX(thr, index, "compiledfunction", DUK_STR_NOT_COMPILEDFUNCTION); + } + return (duk_hcompiledfunction *) h; +} + +DUK_INTERNAL duk_hnativefunction *duk_get_hnativefunction(duk_context *ctx, duk_idx_t index) { + duk_hobject *h = (duk_hobject *) duk__get_tagged_heaphdr_raw(ctx, index, DUK_TAG_OBJECT); + if (h != NULL && !DUK_HOBJECT_IS_NATIVEFUNCTION(h)) { + h = NULL; + } + return (duk_hnativefunction *) h; +} + +DUK_INTERNAL duk_hnativefunction *duk_require_hnativefunction(duk_context *ctx, duk_idx_t index) { + duk_hthread *thr = (duk_hthread *) ctx; + duk_hobject *h = (duk_hobject *) duk__get_tagged_heaphdr_raw(ctx, index, DUK_TAG_OBJECT); + if (!(h != NULL && DUK_HOBJECT_IS_NATIVEFUNCTION(h))) { + DUK_ERROR_REQUIRE_TYPE_INDEX(thr, index, "nativefunction", DUK_STR_NOT_NATIVEFUNCTION); + } + return (duk_hnativefunction *) h; +} + +DUK_EXTERNAL duk_c_function duk_get_c_function(duk_context *ctx, duk_idx_t index) { + duk_tval *tv; + duk_hobject *h; + duk_hnativefunction *f; + + DUK_ASSERT_CTX_VALID(ctx); + + tv = duk_get_tval(ctx, index); + if (!tv) { + return NULL; + } + if (!DUK_TVAL_IS_OBJECT(tv)) { + return NULL; + } + h = DUK_TVAL_GET_OBJECT(tv); + DUK_ASSERT(h != NULL); + + if (!DUK_HOBJECT_IS_NATIVEFUNCTION(h)) { + return NULL; + } + DUK_ASSERT(DUK_HOBJECT_HAS_NATIVEFUNCTION(h)); + f = (duk_hnativefunction *) h; + + return f->func; +} + +DUK_EXTERNAL duk_c_function duk_require_c_function(duk_context *ctx, duk_idx_t index) { + duk_hthread *thr = (duk_hthread *) ctx; + duk_c_function ret; + + DUK_ASSERT_CTX_VALID(ctx); + + ret = duk_get_c_function(ctx, index); + if (!ret) { + DUK_ERROR_REQUIRE_TYPE_INDEX(thr, index, "nativefunction", DUK_STR_NOT_NATIVEFUNCTION); + } + return ret; +} + +DUK_EXTERNAL void duk_require_function(duk_context *ctx, duk_idx_t index) { + if (!duk_is_function(ctx, index)) { + DUK_ERROR_REQUIRE_TYPE_INDEX((duk_hthread *) ctx, index, "function", DUK_STR_NOT_FUNCTION); + } +} + +DUK_EXTERNAL duk_context *duk_get_context(duk_context *ctx, duk_idx_t index) { + DUK_ASSERT_CTX_VALID(ctx); + + return (duk_context *) duk_get_hthread(ctx, index); +} + +DUK_EXTERNAL duk_context *duk_require_context(duk_context *ctx, duk_idx_t index) { + DUK_ASSERT_CTX_VALID(ctx); + + return (duk_context *) duk_require_hthread(ctx, index); +} + +DUK_EXTERNAL void *duk_get_heapptr(duk_context *ctx, duk_idx_t index) { + duk_tval *tv; + void *ret; + + DUK_ASSERT_CTX_VALID(ctx); + + tv = duk_get_tval(ctx, index); + if (tv && DUK_TVAL_IS_HEAP_ALLOCATED(tv)) { + ret = (void *) DUK_TVAL_GET_HEAPHDR(tv); + DUK_ASSERT(ret != NULL); + return ret; + } + + return (void *) NULL; +} + +DUK_EXTERNAL void *duk_require_heapptr(duk_context *ctx, duk_idx_t index) { + duk_hthread *thr = (duk_hthread *) ctx; + duk_tval *tv; + void *ret; + + DUK_ASSERT_CTX_VALID(ctx); + + tv = duk_require_tval(ctx, index); + DUK_ASSERT(tv != NULL); + if (DUK_TVAL_IS_HEAP_ALLOCATED(tv)) { + ret = (void *) DUK_TVAL_GET_HEAPHDR(tv); + DUK_ASSERT(ret != NULL); + return ret; + } + + DUK_ERROR_REQUIRE_TYPE_INDEX(thr, index, "heapobject", DUK_STR_UNEXPECTED_TYPE); + return (void *) NULL; /* not reachable */ +} + +#if 0 +/* This would be pointless: we'd return NULL for both lightfuncs and + * unexpected types. + */ +DUK_INTERNAL duk_hobject *duk_get_hobject_or_lfunc(duk_context *ctx, duk_idx_t index) { +} +#endif + +/* Useful for internal call sites where we either expect an object (function) + * or a lightfunc. Accepts an object (returned as is) or a lightfunc (coerced + * to an object). Return value is NULL if value is neither an object nor a + * lightfunc. + */ +DUK_INTERNAL duk_hobject *duk_get_hobject_or_lfunc_coerce(duk_context *ctx, duk_idx_t index) { + duk_tval *tv; + + DUK_ASSERT_CTX_VALID(ctx); + + tv = duk_require_tval(ctx, index); + DUK_ASSERT(tv != NULL); + if (DUK_TVAL_IS_OBJECT(tv)) { + return DUK_TVAL_GET_OBJECT(tv); + } else if (DUK_TVAL_IS_LIGHTFUNC(tv)) { + duk_to_object(ctx, index); + return duk_require_hobject(ctx, index); + } + + return NULL; +} + +/* Useful for internal call sites where we either expect an object (function) + * or a lightfunc. Returns NULL for a lightfunc. + */ +DUK_INTERNAL duk_hobject *duk_require_hobject_or_lfunc(duk_context *ctx, duk_idx_t index) { + duk_hthread *thr = (duk_hthread *) ctx; + duk_tval *tv; + + DUK_ASSERT_CTX_VALID(ctx); + + tv = duk_require_tval(ctx, index); + DUK_ASSERT(tv != NULL); + if (DUK_TVAL_IS_OBJECT(tv)) { + return DUK_TVAL_GET_OBJECT(tv); + } else if (DUK_TVAL_IS_LIGHTFUNC(tv)) { + return NULL; + } + DUK_ERROR_REQUIRE_TYPE_INDEX(thr, index, "object", DUK_STR_NOT_OBJECT); + return NULL; /* not reachable */ +} + +/* Useful for internal call sites where we either expect an object (function) + * or a lightfunc. Accepts an object (returned as is) or a lightfunc (coerced + * to an object). Return value is never NULL. + */ +DUK_INTERNAL duk_hobject *duk_require_hobject_or_lfunc_coerce(duk_context *ctx, duk_idx_t index) { + duk_hthread *thr = (duk_hthread *) ctx; + duk_tval *tv; + + DUK_ASSERT_CTX_VALID(ctx); + + tv = duk_require_tval(ctx, index); + if (DUK_TVAL_IS_OBJECT(tv)) { + return DUK_TVAL_GET_OBJECT(tv); + } else if (DUK_TVAL_IS_LIGHTFUNC(tv)) { + duk_to_object(ctx, index); + return duk_require_hobject(ctx, index); + } + DUK_ERROR_REQUIRE_TYPE_INDEX(thr, index, "object", DUK_STR_NOT_OBJECT); + return NULL; /* not reachable */ +} + +DUK_INTERNAL duk_hobject *duk_get_hobject_with_class(duk_context *ctx, duk_idx_t index, duk_small_uint_t classnum) { + duk_hobject *h; + + DUK_ASSERT_CTX_VALID(ctx); + DUK_ASSERT_DISABLE(classnum >= 0); /* unsigned */ + DUK_ASSERT(classnum <= DUK_HOBJECT_CLASS_MAX); + + h = (duk_hobject *) duk__get_tagged_heaphdr_raw(ctx, index, DUK_TAG_OBJECT); + if (h != NULL && DUK_HOBJECT_GET_CLASS_NUMBER(h) != classnum) { + h = NULL; + } + return h; +} + +DUK_INTERNAL duk_hobject *duk_require_hobject_with_class(duk_context *ctx, duk_idx_t index, duk_small_uint_t classnum) { + duk_hthread *thr; + duk_hobject *h; + + DUK_ASSERT_CTX_VALID(ctx); + DUK_ASSERT_DISABLE(classnum >= 0); /* unsigned */ + DUK_ASSERT(classnum <= DUK_HOBJECT_CLASS_MAX); + thr = (duk_hthread *) ctx; + + h = (duk_hobject *) duk__get_tagged_heaphdr_raw(ctx, index, DUK_TAG_OBJECT); + if (!(h != NULL && DUK_HOBJECT_GET_CLASS_NUMBER(h) == classnum)) { + duk_hstring *h_class; + h_class = DUK_HTHREAD_GET_STRING(thr, DUK_HOBJECT_CLASS_NUMBER_TO_STRIDX(classnum)); + DUK_UNREF(h_class); + + DUK_ERROR_REQUIRE_TYPE_INDEX(thr, index, (const char *) DUK_HSTRING_GET_DATA(h_class), DUK_STR_UNEXPECTED_TYPE); + } + return h; +} + +DUK_EXTERNAL duk_size_t duk_get_length(duk_context *ctx, duk_idx_t index) { + duk_tval *tv; + + DUK_ASSERT_CTX_VALID(ctx); + + tv = duk_get_tval(ctx, index); + if (!tv) { + return 0; + } + + switch (DUK_TVAL_GET_TAG(tv)) { + case DUK_TAG_UNDEFINED: + case DUK_TAG_NULL: + case DUK_TAG_BOOLEAN: + case DUK_TAG_POINTER: + return 0; + case DUK_TAG_STRING: { + duk_hstring *h = DUK_TVAL_GET_STRING(tv); + DUK_ASSERT(h != NULL); + return (duk_size_t) DUK_HSTRING_GET_CHARLEN(h); + } + case DUK_TAG_OBJECT: { + duk_hobject *h = DUK_TVAL_GET_OBJECT(tv); + DUK_ASSERT(h != NULL); + return (duk_size_t) duk_hobject_get_length((duk_hthread *) ctx, h); + } + case DUK_TAG_BUFFER: { + duk_hbuffer *h = DUK_TVAL_GET_BUFFER(tv); + DUK_ASSERT(h != NULL); + return (duk_size_t) DUK_HBUFFER_GET_SIZE(h); + } + case DUK_TAG_LIGHTFUNC: { + duk_small_uint_t lf_flags; + lf_flags = DUK_TVAL_GET_LIGHTFUNC_FLAGS(tv); + return (duk_size_t) DUK_LFUNC_FLAGS_GET_LENGTH(lf_flags); + } +#if defined(DUK_USE_FASTINT) + case DUK_TAG_FASTINT: +#endif + default: + /* number */ + DUK_ASSERT(!DUK_TVAL_IS_UNUSED(tv)); + DUK_ASSERT(DUK_TVAL_IS_NUMBER(tv)); + return 0; + } + + DUK_UNREACHABLE(); +} + +DUK_INTERNAL void duk_set_length(duk_context *ctx, duk_idx_t index, duk_size_t length) { + duk_hthread *thr = (duk_hthread *) ctx; + duk_hobject *h; + + DUK_ASSERT_CTX_VALID(ctx); + + h = duk_get_hobject(ctx, index); + if (!h) { + return; + } + + duk_hobject_set_length(thr, h, (duk_uint32_t) length); /* XXX: typing */ +} + +/* + * Conversions and coercions + * + * The conversion/coercions are in-place operations on the value stack. + * Some operations are implemented here directly, while others call a + * helper in duk_js_ops.c after validating arguments. + */ + +/* E5 Section 8.12.8 */ + +DUK_LOCAL duk_bool_t duk__defaultvalue_coerce_attempt(duk_context *ctx, duk_idx_t index, duk_small_int_t func_stridx) { + if (duk_get_prop_stridx(ctx, index, func_stridx)) { + /* [ ... func ] */ + if (duk_is_callable(ctx, -1)) { + duk_dup(ctx, index); /* -> [ ... func this ] */ + duk_call_method(ctx, 0); /* -> [ ... retval ] */ + if (duk_is_primitive(ctx, -1)) { + duk_replace(ctx, index); + return 1; + } + /* [ ... retval ]; popped below */ + } + } + duk_pop(ctx); /* [ ... func/retval ] -> [ ... ] */ + return 0; +} + +DUK_EXTERNAL void duk_to_defaultvalue(duk_context *ctx, duk_idx_t index, duk_int_t hint) { + duk_hthread *thr = (duk_hthread *) ctx; + duk_hobject *obj; + /* inline initializer for coercers[] is not allowed by old compilers like BCC */ + duk_small_int_t coercers[2]; + + DUK_ASSERT_CTX_VALID(ctx); + DUK_ASSERT(thr != NULL); + + coercers[0] = DUK_STRIDX_VALUE_OF; + coercers[1] = DUK_STRIDX_TO_STRING; + + index = duk_require_normalize_index(ctx, index); + obj = duk_require_hobject_or_lfunc(ctx, index); + + if (hint == DUK_HINT_NONE) { + if (obj != NULL && DUK_HOBJECT_GET_CLASS_NUMBER(obj) == DUK_HOBJECT_CLASS_DATE) { + hint = DUK_HINT_STRING; + } else { + hint = DUK_HINT_NUMBER; + } + } + + if (hint == DUK_HINT_STRING) { + coercers[0] = DUK_STRIDX_TO_STRING; + coercers[1] = DUK_STRIDX_VALUE_OF; + } + + if (duk__defaultvalue_coerce_attempt(ctx, index, coercers[0])) { + return; + } + + if (duk__defaultvalue_coerce_attempt(ctx, index, coercers[1])) { + return; + } + + DUK_ERROR_TYPE(thr, DUK_STR_DEFAULTVALUE_COERCE_FAILED); +} + +DUK_EXTERNAL void duk_to_undefined(duk_context *ctx, duk_idx_t index) { + duk_hthread *thr = (duk_hthread *) ctx; + duk_tval *tv; + + DUK_ASSERT_CTX_VALID(ctx); + DUK_UNREF(thr); + + tv = duk_require_tval(ctx, index); + DUK_ASSERT(tv != NULL); + DUK_TVAL_SET_UNDEFINED_UPDREF(thr, tv); /* side effects */ +} + +DUK_EXTERNAL void duk_to_null(duk_context *ctx, duk_idx_t index) { + duk_hthread *thr = (duk_hthread *) ctx; + duk_tval *tv; + + DUK_ASSERT_CTX_VALID(ctx); + DUK_UNREF(thr); + + tv = duk_require_tval(ctx, index); + DUK_ASSERT(tv != NULL); + DUK_TVAL_SET_NULL_UPDREF(thr, tv); /* side effects */ +} + +/* E5 Section 9.1 */ +DUK_EXTERNAL void duk_to_primitive(duk_context *ctx, duk_idx_t index, duk_int_t hint) { + DUK_ASSERT_CTX_VALID(ctx); + DUK_ASSERT(hint == DUK_HINT_NONE || hint == DUK_HINT_NUMBER || hint == DUK_HINT_STRING); + + index = duk_require_normalize_index(ctx, index); + + if (!duk_check_type_mask(ctx, index, DUK_TYPE_MASK_OBJECT | + DUK_TYPE_MASK_LIGHTFUNC)) { + /* everything except object stay as is */ + return; + } + duk_to_defaultvalue(ctx, index, hint); +} + +/* E5 Section 9.2 */ +DUK_EXTERNAL duk_bool_t duk_to_boolean(duk_context *ctx, duk_idx_t index) { + duk_hthread *thr = (duk_hthread *) ctx; + duk_tval *tv; + duk_bool_t val; + + DUK_ASSERT_CTX_VALID(ctx); + DUK_UNREF(thr); + + index = duk_require_normalize_index(ctx, index); + + tv = duk_require_tval(ctx, index); + DUK_ASSERT(tv != NULL); + + val = duk_js_toboolean(tv); + DUK_ASSERT(val == 0 || val == 1); + + /* Note: no need to re-lookup tv, conversion is side effect free */ + DUK_ASSERT(tv != NULL); + DUK_TVAL_SET_BOOLEAN_UPDREF(thr, tv, val); /* side effects */ + return val; +} + +DUK_EXTERNAL duk_double_t duk_to_number(duk_context *ctx, duk_idx_t index) { + duk_hthread *thr = (duk_hthread *) ctx; + duk_tval *tv; + duk_double_t d; + + DUK_ASSERT_CTX_VALID(ctx); + + tv = duk_require_tval(ctx, index); + DUK_ASSERT(tv != NULL); + /* XXX: fastint? */ + d = duk_js_tonumber(thr, tv); + + /* Note: need to re-lookup because ToNumber() may have side effects */ + tv = duk_require_tval(ctx, index); + DUK_TVAL_SET_NUMBER_UPDREF(thr, tv, d); /* side effects */ + return d; +} + +/* XXX: combine all the integer conversions: they share everything + * but the helper function for coercion. + */ + +typedef duk_double_t (*duk__toint_coercer)(duk_hthread *thr, duk_tval *tv); + +DUK_LOCAL duk_double_t duk__to_int_uint_helper(duk_context *ctx, duk_idx_t index, duk__toint_coercer coerce_func) { + duk_hthread *thr = (duk_hthread *) ctx; + duk_tval *tv; + duk_double_t d; + + DUK_ASSERT_CTX_VALID(ctx); + + tv = duk_require_tval(ctx, index); + DUK_ASSERT(tv != NULL); + d = coerce_func(thr, tv); + + /* XXX: fastint? */ + + /* Relookup in case coerce_func() has side effects, e.g. ends up coercing an object */ + tv = duk_require_tval(ctx, index); + DUK_TVAL_SET_NUMBER_UPDREF(thr, tv, d); /* side effects */ + return d; +} + +DUK_EXTERNAL duk_int_t duk_to_int(duk_context *ctx, duk_idx_t index) { + /* Value coercion (in stack): ToInteger(), E5 Section 9.4 + * API return value coercion: custom + */ + DUK_ASSERT_CTX_VALID(ctx); + (void) duk__to_int_uint_helper(ctx, index, duk_js_tointeger); + return (duk_int_t) duk__api_coerce_d2i(ctx, index, 0 /*require*/); +} + +DUK_EXTERNAL duk_uint_t duk_to_uint(duk_context *ctx, duk_idx_t index) { + /* Value coercion (in stack): ToInteger(), E5 Section 9.4 + * API return value coercion: custom + */ + DUK_ASSERT_CTX_VALID(ctx); + (void) duk__to_int_uint_helper(ctx, index, duk_js_tointeger); + return (duk_uint_t) duk__api_coerce_d2ui(ctx, index, 0 /*require*/); +} + +DUK_EXTERNAL duk_int32_t duk_to_int32(duk_context *ctx, duk_idx_t index) { + duk_hthread *thr = (duk_hthread *) ctx; + duk_tval *tv; + duk_int32_t ret; + + DUK_ASSERT_CTX_VALID(ctx); + + tv = duk_require_tval(ctx, index); + DUK_ASSERT(tv != NULL); + ret = duk_js_toint32(thr, tv); + + /* Relookup in case coerce_func() has side effects, e.g. ends up coercing an object */ + tv = duk_require_tval(ctx, index); + DUK_TVAL_SET_FASTINT_I32_UPDREF(thr, tv, ret); /* side effects */ + return ret; +} + +DUK_EXTERNAL duk_uint32_t duk_to_uint32(duk_context *ctx, duk_idx_t index) { + duk_hthread *thr = (duk_hthread *) ctx; + duk_tval *tv; + duk_uint32_t ret; + + DUK_ASSERT_CTX_VALID(ctx); + + tv = duk_require_tval(ctx, index); + DUK_ASSERT(tv != NULL); + ret = duk_js_touint32(thr, tv); + + /* Relookup in case coerce_func() has side effects, e.g. ends up coercing an object */ + tv = duk_require_tval(ctx, index); + DUK_TVAL_SET_FASTINT_U32_UPDREF(thr, tv, ret); /* side effects */ + return ret; +} + +DUK_EXTERNAL duk_uint16_t duk_to_uint16(duk_context *ctx, duk_idx_t index) { + duk_hthread *thr = (duk_hthread *) ctx; + duk_tval *tv; + duk_uint16_t ret; + + DUK_ASSERT_CTX_VALID(ctx); + + tv = duk_require_tval(ctx, index); + DUK_ASSERT(tv != NULL); + ret = duk_js_touint16(thr, tv); + + /* Relookup in case coerce_func() has side effects, e.g. ends up coercing an object */ + tv = duk_require_tval(ctx, index); + DUK_TVAL_SET_FASTINT_U32_UPDREF(thr, tv, ret); /* side effects */ + return ret; +} + +#if defined(DUK_USE_BUFFEROBJECT_SUPPORT) +/* Special coercion for Uint8ClampedArray. */ +DUK_INTERNAL duk_uint8_t duk_to_uint8clamped(duk_context *ctx, duk_idx_t index) { + duk_double_t d; + duk_double_t t; + duk_uint8_t ret; + + /* XXX: Simplify this algorithm, should be possible to come up with + * a shorter and faster algorithm by inspecting IEEE representation + * directly. + */ + + d = duk_to_number(ctx, index); + if (d <= 0.0) { + return 0; + } else if (d >= 255) { + return 255; + } else if (DUK_ISNAN(d)) { + /* Avoid NaN-to-integer coercion as it is compiler specific. */ + return 0; + } + + t = d - DUK_FLOOR(d); + if (t == 0.5) { + /* Exact halfway, round to even. */ + ret = (duk_uint8_t) d; + ret = (ret + 1) & 0xfe; /* Example: d=3.5, t=0.5 -> ret = (3 + 1) & 0xfe = 4 & 0xfe = 4 + * Example: d=4.5, t=0.5 -> ret = (4 + 1) & 0xfe = 5 & 0xfe = 4 + */ + } else { + /* Not halfway, round to nearest. */ + ret = (duk_uint8_t) (d + 0.5); + } + return ret; +} +#endif /* DUK_USE_BUFFEROBJECT_SUPPORT */ + +DUK_EXTERNAL const char *duk_to_lstring(duk_context *ctx, duk_idx_t index, duk_size_t *out_len) { + DUK_ASSERT_CTX_VALID(ctx); + + (void) duk_to_string(ctx, index); + return duk_require_lstring(ctx, index, out_len); +} + +DUK_LOCAL duk_ret_t duk__safe_to_string_raw(duk_context *ctx) { + DUK_ASSERT_CTX_VALID(ctx); + + duk_to_string(ctx, -1); + return 1; +} + +DUK_EXTERNAL const char *duk_safe_to_lstring(duk_context *ctx, duk_idx_t index, duk_size_t *out_len) { + DUK_ASSERT_CTX_VALID(ctx); + + index = duk_require_normalize_index(ctx, index); + + /* We intentionally ignore the duk_safe_call() return value and only + * check the output type. This way we don't also need to check that + * the returned value is indeed a string in the success case. + */ + + duk_dup(ctx, index); + (void) duk_safe_call(ctx, duk__safe_to_string_raw, 1 /*nargs*/, 1 /*nrets*/); + if (!duk_is_string(ctx, -1)) { + /* Error: try coercing error to string once. */ + (void) duk_safe_call(ctx, duk__safe_to_string_raw, 1 /*nargs*/, 1 /*nrets*/); + if (!duk_is_string(ctx, -1)) { + /* Double error */ + duk_pop(ctx); + duk_push_hstring_stridx(ctx, DUK_STRIDX_UC_ERROR); + } else { + ; + } + } else { + ; + } + DUK_ASSERT(duk_is_string(ctx, -1)); + DUK_ASSERT(duk_get_string(ctx, -1) != NULL); + + duk_replace(ctx, index); + return duk_get_lstring(ctx, index, out_len); +} + +#if defined(DUK_USE_DEBUGGER_SUPPORT) /* only needed by debugger for now */ +DUK_INTERNAL duk_hstring *duk_safe_to_hstring(duk_context *ctx, duk_idx_t index) { + (void) duk_safe_to_string(ctx, index); + DUK_ASSERT(duk_is_string(ctx, index)); + DUK_ASSERT(duk_get_hstring(ctx, index) != NULL); + return duk_get_hstring(ctx, index); +} +#endif + +/* Coerce top into Object.prototype.toString() output. */ +DUK_INTERNAL void duk_to_object_class_string_top(duk_context *ctx) { + duk_hthread *thr; + duk_uint_t typemask; + duk_hstring *h_strclass; + + DUK_ASSERT_CTX_VALID(ctx); + thr = (duk_hthread *) ctx; + DUK_UNREF(thr); + + typemask = duk_get_type_mask(ctx, -1); + if (typemask & DUK_TYPE_MASK_UNDEFINED) { + h_strclass = DUK_HTHREAD_STRING_UC_UNDEFINED(thr); + } else if (typemask & DUK_TYPE_MASK_NULL) { + h_strclass = DUK_HTHREAD_STRING_UC_NULL(thr); + } else { + duk_hobject *h_obj; + + duk_to_object(ctx, -1); + h_obj = duk_get_hobject(ctx, -1); + DUK_ASSERT(h_obj != NULL); + + h_strclass = DUK_HOBJECT_GET_CLASS_STRING(thr->heap, h_obj); + } + DUK_ASSERT(h_strclass != NULL); + + duk_pop(ctx); + duk_push_sprintf(ctx, "[object %s]", (const char *) DUK_HSTRING_GET_DATA(h_strclass)); +} + +#if !defined(DUK_USE_PARANOID_ERRORS) +DUK_INTERNAL void duk_push_hobject_class_string(duk_context *ctx, duk_hobject *h) { + duk_hthread *thr; + duk_hstring *h_strclass; + + DUK_ASSERT_CTX_VALID(ctx); + DUK_ASSERT(h != NULL); + thr = (duk_hthread *) ctx; + DUK_UNREF(thr); + + h_strclass = DUK_HOBJECT_GET_CLASS_STRING(thr->heap, h); + DUK_ASSERT(h_strclass != NULL); + duk_push_sprintf(ctx, "[object %s]", (const char *) DUK_HSTRING_GET_DATA(h_strclass)); +} +#endif /* !DUK_USE_PARANOID_ERRORS */ + +/* XXX: other variants like uint, u32 etc */ +DUK_INTERNAL duk_int_t duk_to_int_clamped_raw(duk_context *ctx, duk_idx_t index, duk_int_t minval, duk_int_t maxval, duk_bool_t *out_clamped) { + duk_hthread *thr = (duk_hthread *) ctx; + duk_tval *tv; + duk_tval tv_tmp; + duk_double_t d, dmin, dmax; + duk_int_t res; + duk_bool_t clamped = 0; + + DUK_ASSERT_CTX_VALID(ctx); + + tv = duk_require_tval(ctx, index); + DUK_ASSERT(tv != NULL); + d = duk_js_tointeger(thr, tv); /* E5 Section 9.4, ToInteger() */ + + dmin = (duk_double_t) minval; + dmax = (duk_double_t) maxval; + + if (d < dmin) { + clamped = 1; + res = minval; + d = dmin; + } else if (d > dmax) { + clamped = 1; + res = maxval; + d = dmax; + } else { + res = (duk_int_t) d; + } + DUK_UNREF(d); /* SCANBUILD: with suitable dmin/dmax limits 'd' is unused */ + /* 'd' and 'res' agree here */ + + /* Relookup in case duk_js_tointeger() ends up e.g. coercing an object. */ + tv = duk_get_tval(ctx, index); + DUK_ASSERT(tv != NULL); /* not popped by side effect */ + DUK_TVAL_SET_TVAL(&tv_tmp, tv); +#if defined(DUK_USE_FASTINT) +#if (DUK_INT_MAX <= 0x7fffffffL) + DUK_TVAL_SET_FASTINT_I32(tv, res); +#else + /* Clamping needed if duk_int_t is 64 bits. */ + if (res >= DUK_FASTINT_MIN && res <= DUK_FASTINT_MAX) { + DUK_TVAL_SET_FASTINT(tv, res); + } else { + DUK_TVAL_SET_NUMBER(tv, d); + } +#endif +#else + DUK_TVAL_SET_NUMBER(tv, d); /* no need to incref */ +#endif + DUK_TVAL_DECREF(thr, &tv_tmp); /* side effects */ + + if (out_clamped) { + *out_clamped = clamped; + } else { + /* coerced value is updated to value stack even when RangeError thrown */ + if (clamped) { + DUK_ERROR_RANGE(thr, DUK_STR_NUMBER_OUTSIDE_RANGE); + } + } + + return res; +} + +DUK_INTERNAL duk_int_t duk_to_int_clamped(duk_context *ctx, duk_idx_t index, duk_idx_t minval, duk_idx_t maxval) { + duk_bool_t dummy; + return duk_to_int_clamped_raw(ctx, index, minval, maxval, &dummy); +} + +DUK_INTERNAL duk_int_t duk_to_int_check_range(duk_context *ctx, duk_idx_t index, duk_int_t minval, duk_int_t maxval) { + return duk_to_int_clamped_raw(ctx, index, minval, maxval, NULL); /* out_clamped==NULL -> RangeError if outside range */ +} + +DUK_EXTERNAL const char *duk_to_string(duk_context *ctx, duk_idx_t index) { + duk_hthread *thr = (duk_hthread *) ctx; + duk_tval *tv; + + DUK_ASSERT_CTX_VALID(ctx); + DUK_UNREF(thr); + + index = duk_require_normalize_index(ctx, index); + + tv = duk_require_tval(ctx, index); + DUK_ASSERT(tv != NULL); + + switch (DUK_TVAL_GET_TAG(tv)) { + case DUK_TAG_UNDEFINED: { + duk_push_hstring_stridx(ctx, DUK_STRIDX_LC_UNDEFINED); + break; + } + case DUK_TAG_NULL: { + duk_push_hstring_stridx(ctx, DUK_STRIDX_LC_NULL); + break; + } + case DUK_TAG_BOOLEAN: { + if (DUK_TVAL_GET_BOOLEAN(tv)) { + duk_push_hstring_stridx(ctx, DUK_STRIDX_TRUE); + } else { + duk_push_hstring_stridx(ctx, DUK_STRIDX_FALSE); + } + break; + } + case DUK_TAG_STRING: { + /* nop */ + goto skip_replace; + } + case DUK_TAG_OBJECT: { + duk_to_primitive(ctx, index, DUK_HINT_STRING); + return duk_to_string(ctx, index); /* Note: recursive call */ + } + case DUK_TAG_BUFFER: { + duk_hbuffer *h = DUK_TVAL_GET_BUFFER(tv); + + /* Note: this allows creation of internal strings. */ + + DUK_ASSERT(h != NULL); + duk_push_lstring(ctx, + (const char *) DUK_HBUFFER_GET_DATA_PTR(thr->heap, h), + (duk_size_t) DUK_HBUFFER_GET_SIZE(h)); + break; + } + case DUK_TAG_POINTER: { + void *ptr = DUK_TVAL_GET_POINTER(tv); + if (ptr != NULL) { + duk_push_sprintf(ctx, DUK_STR_FMT_PTR, (void *) ptr); + } else { + /* Represent a null pointer as 'null' to be consistent with + * the JX format variant. Native '%p' format for a NULL + * pointer may be e.g. '(nil)'. + */ + duk_push_hstring_stridx(ctx, DUK_STRIDX_LC_NULL); + } + break; + } + case DUK_TAG_LIGHTFUNC: { + /* Should match Function.prototype.toString() */ + duk_push_lightfunc_tostring(ctx, tv); + break; + } +#if defined(DUK_USE_FASTINT) + case DUK_TAG_FASTINT: +#endif + default: { + /* number */ + DUK_ASSERT(!DUK_TVAL_IS_UNUSED(tv)); + DUK_ASSERT(DUK_TVAL_IS_NUMBER(tv)); + duk_push_tval(ctx, tv); + duk_numconv_stringify(ctx, + 10 /*radix*/, + 0 /*precision:shortest*/, + 0 /*force_exponential*/); + break; + } + } + + duk_replace(ctx, index); + + skip_replace: + return duk_require_string(ctx, index); +} + +DUK_INTERNAL duk_hstring *duk_to_hstring(duk_context *ctx, duk_idx_t index) { + duk_hstring *ret; + DUK_ASSERT_CTX_VALID(ctx); + duk_to_string(ctx, index); + ret = duk_get_hstring(ctx, index); + DUK_ASSERT(ret != NULL); + return ret; +} + +DUK_EXTERNAL void *duk_to_buffer_raw(duk_context *ctx, duk_idx_t index, duk_size_t *out_size, duk_uint_t mode) { + duk_hthread *thr = (duk_hthread *) ctx; + duk_hbuffer *h_buf; + const duk_uint8_t *src_data; + duk_size_t src_size; + duk_uint8_t *dst_data; + + DUK_ASSERT_CTX_VALID(ctx); + DUK_UNREF(thr); + + index = duk_require_normalize_index(ctx, index); + + h_buf = duk_get_hbuffer(ctx, index); + if (h_buf != NULL) { + /* Buffer is kept as is, with the fixed/dynamic nature of the + * buffer only changed if requested. An external buffer + * is converted into a non-external dynamic buffer in a + * duk_to_dynamic_buffer() call. + */ + duk_uint_t tmp; + duk_uint8_t *tmp_ptr; + + tmp_ptr = (duk_uint8_t *) DUK_HBUFFER_GET_DATA_PTR(thr->heap, h_buf); + src_data = (const duk_uint8_t *) tmp_ptr; + src_size = DUK_HBUFFER_GET_SIZE(h_buf); + + tmp = (DUK_HBUFFER_HAS_DYNAMIC(h_buf) ? DUK_BUF_MODE_DYNAMIC : DUK_BUF_MODE_FIXED); + if ((tmp == mode && !DUK_HBUFFER_HAS_EXTERNAL(h_buf)) || + mode == DUK_BUF_MODE_DONTCARE) { + /* Note: src_data may be NULL if input is a zero-size + * dynamic buffer. + */ + dst_data = tmp_ptr; + goto skip_copy; + } + } else { + /* Non-buffer value is first ToString() coerced, then converted + * to a buffer (fixed buffer is used unless a dynamic buffer is + * explicitly requested). + */ + + src_data = (const duk_uint8_t *) duk_to_lstring(ctx, index, &src_size); + } + + dst_data = (duk_uint8_t *) duk_push_buffer(ctx, src_size, (mode == DUK_BUF_MODE_DYNAMIC) /*dynamic*/); + if (DUK_LIKELY(src_size > 0)) { + /* When src_size == 0, src_data may be NULL (if source + * buffer is dynamic), and dst_data may be NULL (if + * target buffer is dynamic). Avoid zero-size memcpy() + * with an invalid pointer. + */ + DUK_MEMCPY((void *) dst_data, (const void *) src_data, (size_t) src_size); + } + duk_replace(ctx, index); + skip_copy: + + if (out_size) { + *out_size = src_size; + } + return dst_data; +} + +DUK_EXTERNAL void *duk_to_pointer(duk_context *ctx, duk_idx_t index) { + duk_tval *tv; + void *res; + + DUK_ASSERT_CTX_VALID(ctx); + + index = duk_require_normalize_index(ctx, index); + + tv = duk_require_tval(ctx, index); + DUK_ASSERT(tv != NULL); + + switch (DUK_TVAL_GET_TAG(tv)) { + case DUK_TAG_UNDEFINED: + case DUK_TAG_NULL: + case DUK_TAG_BOOLEAN: + res = NULL; + break; + case DUK_TAG_POINTER: + res = DUK_TVAL_GET_POINTER(tv); + break; + case DUK_TAG_STRING: + case DUK_TAG_OBJECT: + case DUK_TAG_BUFFER: + /* Heap allocated: return heap pointer which is NOT useful + * for the caller, except for debugging. + */ + res = (void *) DUK_TVAL_GET_HEAPHDR(tv); + break; + case DUK_TAG_LIGHTFUNC: + /* Function pointers do not always cast correctly to void * + * (depends on memory and segmentation model for instance), + * so they coerce to NULL. + */ + res = NULL; + break; +#if defined(DUK_USE_FASTINT) + case DUK_TAG_FASTINT: +#endif + default: + /* number */ + DUK_ASSERT(!DUK_TVAL_IS_UNUSED(tv)); + DUK_ASSERT(DUK_TVAL_IS_NUMBER(tv)); + res = NULL; + break; + } + + duk_push_pointer(ctx, res); + duk_replace(ctx, index); + return res; +} + +DUK_EXTERNAL void duk_to_object(duk_context *ctx, duk_idx_t index) { + duk_hthread *thr = (duk_hthread *) ctx; + duk_tval *tv; + duk_uint_t flags = 0; /* shared flags for a subset of types */ + duk_small_int_t proto = 0; + + DUK_ASSERT_CTX_VALID(ctx); + + index = duk_require_normalize_index(ctx, index); + + tv = duk_require_tval(ctx, index); + DUK_ASSERT(tv != NULL); + + switch (DUK_TVAL_GET_TAG(tv)) { + case DUK_TAG_UNDEFINED: + case DUK_TAG_NULL: { + DUK_ERROR_TYPE(thr, DUK_STR_NOT_OBJECT_COERCIBLE); + break; + } + case DUK_TAG_BOOLEAN: { + flags = DUK_HOBJECT_FLAG_EXTENSIBLE | + DUK_HOBJECT_CLASS_AS_FLAGS(DUK_HOBJECT_CLASS_BOOLEAN); + proto = DUK_BIDX_BOOLEAN_PROTOTYPE; + goto create_object; + } + case DUK_TAG_STRING: { + flags = DUK_HOBJECT_FLAG_EXTENSIBLE | + DUK_HOBJECT_FLAG_EXOTIC_STRINGOBJ | + DUK_HOBJECT_CLASS_AS_FLAGS(DUK_HOBJECT_CLASS_STRING); + proto = DUK_BIDX_STRING_PROTOTYPE; + goto create_object; + } + case DUK_TAG_OBJECT: { + /* nop */ + break; + } + case DUK_TAG_BUFFER: { + /* A plain buffer coerces to a Duktape.Buffer because it's the + * object counterpart of the plain buffer value. But it might + * still make more sense to produce an ArrayBuffer here? + */ + + duk_hbufferobject *h_bufobj; + duk_hbuffer *h_val; + + h_val = DUK_TVAL_GET_BUFFER(tv); + DUK_ASSERT(h_val != NULL); + + h_bufobj = duk_push_bufferobject_raw(ctx, + DUK_HOBJECT_FLAG_EXTENSIBLE | + DUK_HOBJECT_FLAG_BUFFEROBJECT | + DUK_HOBJECT_CLASS_AS_FLAGS(DUK_HOBJECT_CLASS_BUFFER), + DUK_BIDX_BUFFER_PROTOTYPE); + DUK_ASSERT(h_bufobj != NULL); + DUK_ASSERT(DUK_HOBJECT_HAS_EXTENSIBLE((duk_hobject *) h_bufobj)); + DUK_ASSERT(DUK_HOBJECT_IS_BUFFEROBJECT((duk_hobject *) h_bufobj)); + + h_bufobj->buf = h_val; + DUK_HBUFFER_INCREF(thr, h_val); + DUK_ASSERT(h_bufobj->offset == 0); + h_bufobj->length = (duk_uint_t) DUK_HBUFFER_GET_SIZE(h_val); + DUK_ASSERT(h_bufobj->shift == 0); + DUK_ASSERT(h_bufobj->elem_type == DUK_HBUFFEROBJECT_ELEM_UINT8); + + DUK_ASSERT_HBUFFEROBJECT_VALID(h_bufobj); + goto replace_value; + } + case DUK_TAG_POINTER: { + flags = DUK_HOBJECT_FLAG_EXTENSIBLE | + DUK_HOBJECT_CLASS_AS_FLAGS(DUK_HOBJECT_CLASS_POINTER); + proto = DUK_BIDX_POINTER_PROTOTYPE; + goto create_object; + } + case DUK_TAG_LIGHTFUNC: { + /* Lightfunc coerces to a Function instance with concrete + * properties. Since 'length' is virtual for Duktape/C + * functions, don't need to define that. + * + * The result is made extensible to mimic what happens to + * strings: + * > Object.isExtensible(Object('foo')) + * true + */ + duk_small_uint_t lf_flags; + duk_idx_t nargs; + duk_small_uint_t lf_len; + duk_c_function func; + duk_hnativefunction *nf; + + DUK_TVAL_GET_LIGHTFUNC(tv, func, lf_flags); + + nargs = (duk_idx_t) DUK_LFUNC_FLAGS_GET_NARGS(lf_flags); + if (nargs == DUK_LFUNC_NARGS_VARARGS) { + nargs = (duk_idx_t) DUK_VARARGS; + } + flags = DUK_HOBJECT_FLAG_EXTENSIBLE | + DUK_HOBJECT_FLAG_CONSTRUCTABLE | + DUK_HOBJECT_FLAG_NATIVEFUNCTION | + DUK_HOBJECT_FLAG_NEWENV | + DUK_HOBJECT_FLAG_STRICT | + DUK_HOBJECT_FLAG_NOTAIL | + /* DUK_HOBJECT_FLAG_EXOTIC_DUKFUNC: omitted here intentionally */ + DUK_HOBJECT_CLASS_AS_FLAGS(DUK_HOBJECT_CLASS_FUNCTION); + (void) duk__push_c_function_raw(ctx, func, nargs, flags); + + lf_len = DUK_LFUNC_FLAGS_GET_LENGTH(lf_flags); + if ((duk_idx_t) lf_len != nargs) { + /* Explicit length is only needed if it differs from 'nargs'. */ + duk_push_int(ctx, (duk_int_t) lf_len); + duk_xdef_prop_stridx(ctx, -2, DUK_STRIDX_LENGTH, DUK_PROPDESC_FLAGS_NONE); + } + duk_push_lightfunc_name(ctx, tv); + duk_xdef_prop_stridx(ctx, -2, DUK_STRIDX_NAME, DUK_PROPDESC_FLAGS_NONE); + + nf = duk_get_hnativefunction(ctx, -1); + DUK_ASSERT(nf != NULL); + nf->magic = (duk_int16_t) DUK_LFUNC_FLAGS_GET_MAGIC(lf_flags); + + /* Enable DUKFUNC exotic behavior once properties are set up. */ + DUK_HOBJECT_SET_EXOTIC_DUKFUNC((duk_hobject *) nf); + goto replace_value; + } +#if defined(DUK_USE_FASTINT) + case DUK_TAG_FASTINT: +#endif + default: { + DUK_ASSERT(!DUK_TVAL_IS_UNUSED(tv)); + DUK_ASSERT(DUK_TVAL_IS_NUMBER(tv)); + flags = DUK_HOBJECT_FLAG_EXTENSIBLE | + DUK_HOBJECT_CLASS_AS_FLAGS(DUK_HOBJECT_CLASS_NUMBER); + proto = DUK_BIDX_NUMBER_PROTOTYPE; + goto create_object; + } + } + return; + + create_object: + (void) duk_push_object_helper(ctx, flags, proto); + + /* Note: Boolean prototype's internal value property is not writable, + * but duk_xdef_prop_stridx() disregards the write protection. Boolean + * instances are immutable. + * + * String and buffer special behaviors are already enabled which is not + * ideal, but a write to the internal value is not affected by them. + */ + duk_dup(ctx, index); + duk_xdef_prop_stridx(ctx, -2, DUK_STRIDX_INT_VALUE, DUK_PROPDESC_FLAGS_NONE); + + replace_value: + duk_replace(ctx, index); +} + +/* + * Type checking + */ + +DUK_LOCAL duk_bool_t duk__tag_check(duk_context *ctx, duk_idx_t index, duk_small_uint_t tag) { + duk_tval *tv; + + tv = duk_get_tval(ctx, index); + if (!tv) { + return 0; + } + return (DUK_TVAL_GET_TAG(tv) == tag); +} + +DUK_LOCAL duk_bool_t duk__obj_flag_any_default_false(duk_context *ctx, duk_idx_t index, duk_uint_t flag_mask) { + duk_hobject *obj; + + DUK_ASSERT_CTX_VALID(ctx); + + obj = duk_get_hobject(ctx, index); + if (obj) { + return (DUK_HEAPHDR_CHECK_FLAG_BITS((duk_heaphdr *) obj, flag_mask) ? 1 : 0); + } + return 0; +} + +DUK_EXTERNAL duk_int_t duk_get_type(duk_context *ctx, duk_idx_t index) { + duk_tval *tv; + + DUK_ASSERT_CTX_VALID(ctx); + + tv = duk_get_tval(ctx, index); + if (!tv) { + return DUK_TYPE_NONE; + } + switch (DUK_TVAL_GET_TAG(tv)) { + case DUK_TAG_UNDEFINED: + return DUK_TYPE_UNDEFINED; + case DUK_TAG_NULL: + return DUK_TYPE_NULL; + case DUK_TAG_BOOLEAN: + return DUK_TYPE_BOOLEAN; + case DUK_TAG_STRING: + return DUK_TYPE_STRING; + case DUK_TAG_OBJECT: + return DUK_TYPE_OBJECT; + case DUK_TAG_BUFFER: + return DUK_TYPE_BUFFER; + case DUK_TAG_POINTER: + return DUK_TYPE_POINTER; + case DUK_TAG_LIGHTFUNC: + return DUK_TYPE_LIGHTFUNC; +#if defined(DUK_USE_FASTINT) + case DUK_TAG_FASTINT: +#endif + default: + /* Note: number has no explicit tag (in 8-byte representation) */ + DUK_ASSERT(!DUK_TVAL_IS_UNUSED(tv)); + DUK_ASSERT(DUK_TVAL_IS_NUMBER(tv)); + return DUK_TYPE_NUMBER; + } + DUK_UNREACHABLE(); +} + +#if defined(DUK_USE_VERBOSE_ERRORS) && defined(DUK_USE_PARANOID_ERRORS) +DUK_LOCAL const char *duk__type_names[] = { + "none", + "undefined", + "null", + "boolean", + "number", + "string", + "object", + "buffer", + "pointer", + "lightfunc" +}; + +DUK_INTERNAL const char *duk_get_type_name(duk_context *ctx, duk_idx_t index) { + duk_int_t type_tag; + + type_tag = duk_get_type(ctx, index); + DUK_ASSERT(type_tag >= DUK_TYPE_MIN && type_tag <= DUK_TYPE_MAX); + DUK_ASSERT(DUK_TYPE_MIN == 0 && sizeof(duk__type_names) / sizeof(const char *) == DUK_TYPE_MAX + 1); + + return duk__type_names[type_tag]; +} +#endif + +DUK_EXTERNAL duk_bool_t duk_check_type(duk_context *ctx, duk_idx_t index, duk_int_t type) { + DUK_ASSERT_CTX_VALID(ctx); + + return (duk_get_type(ctx, index) == type) ? 1 : 0; +} + +DUK_EXTERNAL duk_uint_t duk_get_type_mask(duk_context *ctx, duk_idx_t index) { + duk_tval *tv; + + DUK_ASSERT_CTX_VALID(ctx); + + tv = duk_get_tval(ctx, index); + if (!tv) { + return DUK_TYPE_MASK_NONE; + } + switch (DUK_TVAL_GET_TAG(tv)) { + case DUK_TAG_UNDEFINED: + return DUK_TYPE_MASK_UNDEFINED; + case DUK_TAG_NULL: + return DUK_TYPE_MASK_NULL; + case DUK_TAG_BOOLEAN: + return DUK_TYPE_MASK_BOOLEAN; + case DUK_TAG_STRING: + return DUK_TYPE_MASK_STRING; + case DUK_TAG_OBJECT: + return DUK_TYPE_MASK_OBJECT; + case DUK_TAG_BUFFER: + return DUK_TYPE_MASK_BUFFER; + case DUK_TAG_POINTER: + return DUK_TYPE_MASK_POINTER; + case DUK_TAG_LIGHTFUNC: + return DUK_TYPE_MASK_LIGHTFUNC; +#if defined(DUK_USE_FASTINT) + case DUK_TAG_FASTINT: +#endif + default: + /* Note: number has no explicit tag (in 8-byte representation) */ + DUK_ASSERT(!DUK_TVAL_IS_UNUSED(tv)); + DUK_ASSERT(DUK_TVAL_IS_NUMBER(tv)); + return DUK_TYPE_MASK_NUMBER; + } + DUK_UNREACHABLE(); +} + +DUK_EXTERNAL duk_bool_t duk_check_type_mask(duk_context *ctx, duk_idx_t index, duk_uint_t mask) { + duk_hthread *thr = (duk_hthread *) ctx; + + DUK_ASSERT_CTX_VALID(ctx); + + if (duk_get_type_mask(ctx, index) & mask) { + return 1; + } + if (mask & DUK_TYPE_MASK_THROW) { + DUK_ERROR_TYPE(thr, DUK_STR_UNEXPECTED_TYPE); + DUK_UNREACHABLE(); + } + return 0; +} + +DUK_EXTERNAL duk_bool_t duk_is_undefined(duk_context *ctx, duk_idx_t index) { + DUK_ASSERT_CTX_VALID(ctx); + return duk__tag_check(ctx, index, DUK_TAG_UNDEFINED); +} + +DUK_EXTERNAL duk_bool_t duk_is_null(duk_context *ctx, duk_idx_t index) { + DUK_ASSERT_CTX_VALID(ctx); + return duk__tag_check(ctx, index, DUK_TAG_NULL); +} + +DUK_EXTERNAL duk_bool_t duk_is_null_or_undefined(duk_context *ctx, duk_idx_t index) { + duk_tval *tv; + duk_small_uint_t tag; + + DUK_ASSERT_CTX_VALID(ctx); + + tv = duk_get_tval(ctx, index); + if (!tv) { + return 0; + } + tag = DUK_TVAL_GET_TAG(tv); + return (tag == DUK_TAG_UNDEFINED) || (tag == DUK_TAG_NULL); +} + +DUK_EXTERNAL duk_bool_t duk_is_boolean(duk_context *ctx, duk_idx_t index) { + DUK_ASSERT_CTX_VALID(ctx); + return duk__tag_check(ctx, index, DUK_TAG_BOOLEAN); +} + +DUK_EXTERNAL duk_bool_t duk_is_number(duk_context *ctx, duk_idx_t index) { + duk_tval *tv; + + DUK_ASSERT_CTX_VALID(ctx); + + /* + * Number is special because it doesn't have a specific + * tag in the 8-byte representation. + */ + + /* XXX: shorter version for 12-byte representation? */ + + tv = duk_get_tval(ctx, index); + if (!tv) { + return 0; + } + return DUK_TVAL_IS_NUMBER(tv); +} + +DUK_EXTERNAL duk_bool_t duk_is_nan(duk_context *ctx, duk_idx_t index) { + /* XXX: This will now return false for non-numbers, even though they would + * coerce to NaN (as a general rule). In particular, duk_get_number() + * returns a NaN for non-numbers, so should this function also return + * true for non-numbers? + */ + + duk_tval *tv; + + DUK_ASSERT_CTX_VALID(ctx); + + tv = duk_get_tval(ctx, index); + if (!tv || !DUK_TVAL_IS_NUMBER(tv)) { + return 0; + } + return DUK_ISNAN(DUK_TVAL_GET_NUMBER(tv)); +} + +DUK_EXTERNAL duk_bool_t duk_is_string(duk_context *ctx, duk_idx_t index) { + DUK_ASSERT_CTX_VALID(ctx); + return duk__tag_check(ctx, index, DUK_TAG_STRING); +} + +DUK_EXTERNAL duk_bool_t duk_is_object(duk_context *ctx, duk_idx_t index) { + DUK_ASSERT_CTX_VALID(ctx); + return duk__tag_check(ctx, index, DUK_TAG_OBJECT); +} + +DUK_EXTERNAL duk_bool_t duk_is_buffer(duk_context *ctx, duk_idx_t index) { + DUK_ASSERT_CTX_VALID(ctx); + return duk__tag_check(ctx, index, DUK_TAG_BUFFER); +} + +DUK_EXTERNAL duk_bool_t duk_is_pointer(duk_context *ctx, duk_idx_t index) { + DUK_ASSERT_CTX_VALID(ctx); + return duk__tag_check(ctx, index, DUK_TAG_POINTER); +} + +DUK_EXTERNAL duk_bool_t duk_is_lightfunc(duk_context *ctx, duk_idx_t index) { + DUK_ASSERT_CTX_VALID(ctx); + return duk__tag_check(ctx, index, DUK_TAG_LIGHTFUNC); +} + +DUK_EXTERNAL duk_bool_t duk_is_array(duk_context *ctx, duk_idx_t index) { + duk_hobject *obj; + + DUK_ASSERT_CTX_VALID(ctx); + + obj = duk_get_hobject(ctx, index); + if (obj) { + return (DUK_HOBJECT_GET_CLASS_NUMBER(obj) == DUK_HOBJECT_CLASS_ARRAY ? 1 : 0); + } + return 0; +} + +DUK_EXTERNAL duk_bool_t duk_is_function(duk_context *ctx, duk_idx_t index) { + duk_tval *tv; + + DUK_ASSERT_CTX_VALID(ctx); + + tv = duk_get_tval(ctx, index); + if (tv && DUK_TVAL_IS_LIGHTFUNC(tv)) { + return 1; + } + return duk__obj_flag_any_default_false(ctx, + index, + DUK_HOBJECT_FLAG_COMPILEDFUNCTION | + DUK_HOBJECT_FLAG_NATIVEFUNCTION | + DUK_HOBJECT_FLAG_BOUND); +} + +DUK_EXTERNAL duk_bool_t duk_is_c_function(duk_context *ctx, duk_idx_t index) { + DUK_ASSERT_CTX_VALID(ctx); + return duk__obj_flag_any_default_false(ctx, + index, + DUK_HOBJECT_FLAG_NATIVEFUNCTION); +} + +DUK_EXTERNAL duk_bool_t duk_is_ecmascript_function(duk_context *ctx, duk_idx_t index) { + DUK_ASSERT_CTX_VALID(ctx); + return duk__obj_flag_any_default_false(ctx, + index, + DUK_HOBJECT_FLAG_COMPILEDFUNCTION); +} + +DUK_EXTERNAL duk_bool_t duk_is_bound_function(duk_context *ctx, duk_idx_t index) { + DUK_ASSERT_CTX_VALID(ctx); + return duk__obj_flag_any_default_false(ctx, + index, + DUK_HOBJECT_FLAG_BOUND); +} + +DUK_EXTERNAL duk_bool_t duk_is_thread(duk_context *ctx, duk_idx_t index) { + DUK_ASSERT_CTX_VALID(ctx); + return duk__obj_flag_any_default_false(ctx, + index, + DUK_HOBJECT_FLAG_THREAD); +} + +DUK_EXTERNAL duk_bool_t duk_is_fixed_buffer(duk_context *ctx, duk_idx_t index) { + duk_tval *tv; + + DUK_ASSERT_CTX_VALID(ctx); + + tv = duk_get_tval(ctx, index); + if (tv && DUK_TVAL_IS_BUFFER(tv)) { + duk_hbuffer *h = DUK_TVAL_GET_BUFFER(tv); + DUK_ASSERT(h != NULL); + return (DUK_HBUFFER_HAS_DYNAMIC(h) ? 0 : 1); + } + return 0; +} + +DUK_EXTERNAL duk_bool_t duk_is_dynamic_buffer(duk_context *ctx, duk_idx_t index) { + duk_tval *tv; + + DUK_ASSERT_CTX_VALID(ctx); + + tv = duk_get_tval(ctx, index); + if (tv && DUK_TVAL_IS_BUFFER(tv)) { + duk_hbuffer *h = DUK_TVAL_GET_BUFFER(tv); + DUK_ASSERT(h != NULL); + return (DUK_HBUFFER_HAS_DYNAMIC(h) && !DUK_HBUFFER_HAS_EXTERNAL(h) ? 1 : 0); + } + return 0; +} + +DUK_EXTERNAL duk_bool_t duk_is_external_buffer(duk_context *ctx, duk_idx_t index) { + duk_tval *tv; + + DUK_ASSERT_CTX_VALID(ctx); + + tv = duk_get_tval(ctx, index); + if (tv && DUK_TVAL_IS_BUFFER(tv)) { + duk_hbuffer *h = DUK_TVAL_GET_BUFFER(tv); + DUK_ASSERT(h != NULL); + return (DUK_HBUFFER_HAS_DYNAMIC(h) && DUK_HBUFFER_HAS_EXTERNAL(h) ? 1 : 0); + } + return 0; +} + +DUK_EXTERNAL duk_errcode_t duk_get_error_code(duk_context *ctx, duk_idx_t index) { + duk_hthread *thr = (duk_hthread *) ctx; + duk_hobject *h; + duk_uint_t sanity; + + DUK_ASSERT_CTX_VALID(ctx); + + h = duk_get_hobject(ctx, index); + + sanity = DUK_HOBJECT_PROTOTYPE_CHAIN_SANITY; + do { + if (!h) { + return DUK_ERR_NONE; + } + if (h == thr->builtins[DUK_BIDX_EVAL_ERROR_PROTOTYPE]) { + return DUK_ERR_EVAL_ERROR; + } + if (h == thr->builtins[DUK_BIDX_RANGE_ERROR_PROTOTYPE]) { + return DUK_ERR_RANGE_ERROR; + } + if (h == thr->builtins[DUK_BIDX_REFERENCE_ERROR_PROTOTYPE]) { + return DUK_ERR_REFERENCE_ERROR; + } + if (h == thr->builtins[DUK_BIDX_SYNTAX_ERROR_PROTOTYPE]) { + return DUK_ERR_SYNTAX_ERROR; + } + if (h == thr->builtins[DUK_BIDX_TYPE_ERROR_PROTOTYPE]) { + return DUK_ERR_TYPE_ERROR; + } + if (h == thr->builtins[DUK_BIDX_URI_ERROR_PROTOTYPE]) { + return DUK_ERR_URI_ERROR; + } + if (h == thr->builtins[DUK_BIDX_ERROR_PROTOTYPE]) { + return DUK_ERR_ERROR; + } + + h = DUK_HOBJECT_GET_PROTOTYPE(thr->heap, h); + } while (--sanity > 0); + + return DUK_ERR_NONE; +} + +/* + * Pushers + */ + +DUK_INTERNAL void duk_push_tval(duk_context *ctx, duk_tval *tv) { + duk_hthread *thr; + duk_tval *tv_slot; + + DUK_ASSERT_CTX_VALID(ctx); + DUK_ASSERT(tv != NULL); + thr = (duk_hthread *) ctx; + DUK__CHECK_SPACE(); + tv_slot = thr->valstack_top++; + DUK_TVAL_SET_TVAL(tv_slot, tv); + DUK_TVAL_INCREF(thr, tv); /* no side effects */ +} + +DUK_EXTERNAL void duk_push_undefined(duk_context *ctx) { + duk_hthread *thr; + + DUK_ASSERT_CTX_VALID(ctx); + thr = (duk_hthread *) ctx; + DUK__CHECK_SPACE(); + + /* Because value stack init policy is 'undefined above top', + * we don't need to write, just assert. + */ + thr->valstack_top++; + DUK_ASSERT(DUK_TVAL_IS_UNDEFINED(thr->valstack_top - 1)); +} + +DUK_EXTERNAL void duk_push_null(duk_context *ctx) { + duk_hthread *thr; + duk_tval *tv_slot; + + DUK_ASSERT_CTX_VALID(ctx); + thr = (duk_hthread *) ctx; + DUK__CHECK_SPACE(); + tv_slot = thr->valstack_top++; + DUK_TVAL_SET_NULL(tv_slot); +} + +DUK_EXTERNAL void duk_push_boolean(duk_context *ctx, duk_bool_t val) { + duk_hthread *thr; + duk_tval *tv_slot; + duk_small_int_t b; + + DUK_ASSERT_CTX_VALID(ctx); + thr = (duk_hthread *) ctx; + DUK__CHECK_SPACE(); + b = (val ? 1 : 0); /* ensure value is 1 or 0 (not other non-zero) */ + tv_slot = thr->valstack_top++; + DUK_TVAL_SET_BOOLEAN(tv_slot, b); +} + +DUK_EXTERNAL void duk_push_true(duk_context *ctx) { + duk_hthread *thr; + duk_tval *tv_slot; + + DUK_ASSERT_CTX_VALID(ctx); + thr = (duk_hthread *) ctx; + DUK__CHECK_SPACE(); + tv_slot = thr->valstack_top++; + DUK_TVAL_SET_BOOLEAN_TRUE(tv_slot); +} + +DUK_EXTERNAL void duk_push_false(duk_context *ctx) { + duk_hthread *thr; + duk_tval *tv_slot; + + DUK_ASSERT_CTX_VALID(ctx); + thr = (duk_hthread *) ctx; + DUK__CHECK_SPACE(); + tv_slot = thr->valstack_top++; + DUK_TVAL_SET_BOOLEAN_FALSE(tv_slot); +} + +/* normalize NaN which may not match our canonical internal NaN */ +DUK_EXTERNAL void duk_push_number(duk_context *ctx, duk_double_t val) { + duk_hthread *thr; + duk_tval *tv_slot; + duk_double_union du; + + DUK_ASSERT_CTX_VALID(ctx); + thr = (duk_hthread *) ctx; + DUK__CHECK_SPACE(); + du.d = val; + DUK_DBLUNION_NORMALIZE_NAN_CHECK(&du); + tv_slot = thr->valstack_top++; + DUK_TVAL_SET_NUMBER(tv_slot, du.d); +} + +DUK_EXTERNAL void duk_push_int(duk_context *ctx, duk_int_t val) { +#if defined(DUK_USE_FASTINT) + duk_hthread *thr; + duk_tval *tv_slot; + + DUK_ASSERT_CTX_VALID(ctx); + thr = (duk_hthread *) ctx; + DUK__CHECK_SPACE(); + tv_slot = thr->valstack_top++; +#if DUK_INT_MAX <= 0x7fffffffL + DUK_TVAL_SET_FASTINT_I32(tv_slot, (duk_int32_t) val); +#else + if (val >= DUK_FASTINT_MIN && val <= DUK_FASTINT_MAX) { + DUK_TVAL_SET_FASTINT(tv_slot, (duk_int64_t) val); + } else { + duk_double_t = (duk_double_t) val; + DUK_TVAL_SET_NUMBER(tv_slot, d); + } +#endif +#else /* DUK_USE_FASTINT */ + duk_hthread *thr; + duk_tval *tv_slot; + duk_double_t d; + + DUK_ASSERT_CTX_VALID(ctx); + thr = (duk_hthread *) ctx; + DUK__CHECK_SPACE(); + d = (duk_double_t) val; + tv_slot = thr->valstack_top++; + DUK_TVAL_SET_NUMBER(tv_slot, d); +#endif /* DUK_USE_FASTINT */ +} + +DUK_EXTERNAL void duk_push_uint(duk_context *ctx, duk_uint_t val) { +#if defined(DUK_USE_FASTINT) + duk_hthread *thr; + duk_tval *tv_slot; + + DUK_ASSERT_CTX_VALID(ctx); + thr = (duk_hthread *) ctx; + DUK__CHECK_SPACE(); + tv_slot = thr->valstack_top++; +#if DUK_UINT_MAX <= 0xffffffffUL + DUK_TVAL_SET_FASTINT_U32(tv_slot, (duk_uint32_t) val); +#else + if (val <= DUK_FASTINT_MAX) { /* val is unsigned so >= 0 */ + /* XXX: take advantage of val being unsigned, no need to mask */ + DUK_TVAL_SET_FASTINT(tv_slot, (duk_int64_t) val); + } else { + duk_double_t = (duk_double_t) val; + DUK_TVAL_SET_NUMBER(tv_slot, d); + } +#endif +#else /* DUK_USE_FASTINT */ + duk_hthread *thr; + duk_tval *tv_slot; + duk_double_t d; + + DUK_ASSERT_CTX_VALID(ctx); + thr = (duk_hthread *) ctx; + DUK__CHECK_SPACE(); + d = (duk_double_t) val; + tv_slot = thr->valstack_top++; + DUK_TVAL_SET_NUMBER(tv_slot, d); +#endif /* DUK_USE_FASTINT */ +} + +DUK_EXTERNAL void duk_push_nan(duk_context *ctx) { + duk_hthread *thr; + duk_tval *tv_slot; + duk_double_union du; + + DUK_ASSERT_CTX_VALID(ctx); + thr = (duk_hthread *) ctx; + DUK__CHECK_SPACE(); + DUK_DBLUNION_SET_NAN(&du); + DUK_ASSERT(DUK_DBLUNION_IS_NORMALIZED(&du)); + tv_slot = thr->valstack_top++; + DUK_TVAL_SET_NUMBER(tv_slot, du.d); +} + +DUK_EXTERNAL const char *duk_push_lstring(duk_context *ctx, const char *str, duk_size_t len) { + duk_hthread *thr = (duk_hthread *) ctx; + duk_hstring *h; + duk_tval *tv_slot; + + DUK_ASSERT_CTX_VALID(ctx); + + /* check stack before interning (avoid hanging temp) */ + if (thr->valstack_top >= thr->valstack_end) { + DUK_ERROR_API(thr, DUK_STR_PUSH_BEYOND_ALLOC_STACK); + } + + /* NULL with zero length represents an empty string; NULL with higher + * length is also now trated like an empty string although it is + * a bit dubious. This is unlike duk_push_string() which pushes a + * 'null' if the input string is a NULL. + */ + if (!str) { + len = 0; + } + + /* Check for maximum string length */ + if (len > DUK_HSTRING_MAX_BYTELEN) { + DUK_ERROR_RANGE(thr, DUK_STR_STRING_TOO_LONG); + } + + h = duk_heap_string_intern_checked(thr, (const duk_uint8_t *) str, (duk_uint32_t) len); + DUK_ASSERT(h != NULL); + + tv_slot = thr->valstack_top++; + DUK_TVAL_SET_STRING(tv_slot, h); + DUK_HSTRING_INCREF(thr, h); /* no side effects */ + + return (const char *) DUK_HSTRING_GET_DATA(h); +} + +DUK_EXTERNAL const char *duk_push_string(duk_context *ctx, const char *str) { + DUK_ASSERT_CTX_VALID(ctx); + + if (str) { + return duk_push_lstring(ctx, str, DUK_STRLEN(str)); + } else { + duk_push_null(ctx); + return NULL; + } +} + +#ifdef DUK_USE_FILE_IO +/* This is a bit clunky because it is ANSI C portable. Should perhaps + * relocate to another file because this is potentially platform + * dependent. + */ +DUK_EXTERNAL const char *duk_push_string_file_raw(duk_context *ctx, const char *path, duk_uint_t flags) { + duk_hthread *thr = (duk_hthread *) ctx; + duk_file *f = NULL; + char *buf; + long sz; /* ANSI C typing */ + + DUK_ASSERT_CTX_VALID(ctx); + + if (!path) { + goto fail; + } + f = DUK_FOPEN(path, "rb"); + if (!f) { + goto fail; + } + if (DUK_FSEEK(f, 0, SEEK_END) < 0) { + goto fail; + } + sz = DUK_FTELL(f); + if (sz < 0) { + goto fail; + } + if (DUK_FSEEK(f, 0, SEEK_SET) < 0) { + goto fail; + } + buf = (char *) duk_push_fixed_buffer(ctx, (duk_size_t) sz); + DUK_ASSERT(buf != NULL); + if ((duk_size_t) DUK_FREAD(buf, 1, (size_t) sz, f) != (duk_size_t) sz) { + goto fail; + } + (void) DUK_FCLOSE(f); /* ignore fclose() error */ + f = NULL; + return duk_to_string(ctx, -1); + + fail: + if (f) { + DUK_FCLOSE(f); + } + + if (flags != 0) { + DUK_ASSERT(flags == DUK_STRING_PUSH_SAFE); /* only flag now */ + duk_push_undefined(ctx); + } else { + /* XXX: string not shared because it is conditional */ + DUK_ERROR_TYPE(thr, "read file error"); + } + return NULL; +} +#else +DUK_EXTERNAL const char *duk_push_string_file_raw(duk_context *ctx, const char *path, duk_uint_t flags) { + duk_hthread *thr = (duk_hthread *) ctx; + DUK_ASSERT_CTX_VALID(ctx); + DUK_UNREF(path); + + if (flags != 0) { + DUK_ASSERT(flags == DUK_STRING_PUSH_SAFE); /* only flag now */ + duk_push_undefined(ctx); + } else { + /* XXX: string not shared because it is conditional */ + DUK_ERROR_UNSUPPORTED(thr, "file I/O disabled"); + } + return NULL; +} +#endif /* DUK_USE_FILE_IO */ + +DUK_EXTERNAL void duk_push_pointer(duk_context *ctx, void *val) { + duk_hthread *thr; + duk_tval *tv_slot; + + DUK_ASSERT_CTX_VALID(ctx); + thr = (duk_hthread *) ctx; + DUK__CHECK_SPACE(); + tv_slot = thr->valstack_top++; + DUK_TVAL_SET_POINTER(tv_slot, val); +} + +DUK_LOCAL void duk__push_this_helper(duk_context *ctx, duk_small_uint_t check_object_coercible) { + duk_hthread *thr; + duk_tval *tv_slot; + + DUK_ASSERT_CTX_VALID(ctx); + DUK_ASSERT_DISABLE(thr->callstack_top >= 0); /* avoid warning (unsigned) */ + thr = (duk_hthread *) ctx; + DUK_ASSERT(thr->callstack_top <= thr->callstack_size); + DUK__CHECK_SPACE(); + + DUK_ASSERT(DUK_TVAL_IS_UNDEFINED(thr->valstack_top)); /* because of valstack init policy */ + tv_slot = thr->valstack_top++; + + if (DUK_UNLIKELY(thr->callstack_top == 0)) { + if (check_object_coercible) { + goto type_error; + } + /* 'undefined' already on stack top */ + } else { + duk_tval *tv; + + /* 'this' binding is just before current activation's bottom */ + DUK_ASSERT(thr->valstack_bottom > thr->valstack); + tv = thr->valstack_bottom - 1; + if (check_object_coercible && + (DUK_TVAL_IS_UNDEFINED(tv) || DUK_TVAL_IS_NULL(tv))) { + /* XXX: better macro for DUK_TVAL_IS_UNDEFINED_OR_NULL(tv) */ + goto type_error; + } + + DUK_TVAL_SET_TVAL(tv_slot, tv); + DUK_TVAL_INCREF(thr, tv); + } + return; + + type_error: + DUK_ERROR_TYPE(thr, DUK_STR_NOT_OBJECT_COERCIBLE); +} + +DUK_EXTERNAL void duk_push_this(duk_context *ctx) { + DUK_ASSERT_CTX_VALID(ctx); + + duk__push_this_helper(ctx, 0 /*check_object_coercible*/); +} + +DUK_INTERNAL void duk_push_this_check_object_coercible(duk_context *ctx) { + DUK_ASSERT_CTX_VALID(ctx); + + duk__push_this_helper(ctx, 1 /*check_object_coercible*/); +} + +DUK_INTERNAL duk_hobject *duk_push_this_coercible_to_object(duk_context *ctx) { + duk_hobject *h; + + DUK_ASSERT_CTX_VALID(ctx); + + duk__push_this_helper(ctx, 1 /*check_object_coercible*/); + duk_to_object(ctx, -1); + h = duk_get_hobject(ctx, -1); + DUK_ASSERT(h != NULL); + return h; +} + +DUK_INTERNAL duk_hstring *duk_push_this_coercible_to_string(duk_context *ctx) { + duk_hstring *h; + + DUK_ASSERT_CTX_VALID(ctx); + + duk__push_this_helper(ctx, 1 /*check_object_coercible*/); + duk_to_string(ctx, -1); + h = duk_get_hstring(ctx, -1); + DUK_ASSERT(h != NULL); + return h; +} + +DUK_INTERNAL duk_tval *duk_get_borrowed_this_tval(duk_context *ctx) { + duk_hthread *thr; + + DUK_ASSERT(ctx != NULL); + thr = (duk_hthread *) ctx; + + DUK_ASSERT(thr->callstack_top > 0); /* caller required to know */ + DUK_ASSERT(thr->valstack_bottom > thr->valstack); /* consequence of above */ + DUK_ASSERT(thr->valstack_bottom - 1 >= thr->valstack); /* 'this' binding exists */ + + return thr->valstack_bottom - 1; +} + +DUK_EXTERNAL void duk_push_current_function(duk_context *ctx) { + duk_hthread *thr = (duk_hthread *) ctx; + duk_activation *act; + + DUK_ASSERT_CTX_VALID(ctx); + DUK_ASSERT(thr != NULL); + DUK_ASSERT_DISABLE(thr->callstack_top >= 0); + DUK_ASSERT(thr->callstack_top <= thr->callstack_size); + + act = duk_hthread_get_current_activation(thr); + if (act) { + duk_push_tval(ctx, &act->tv_func); + } else { + duk_push_undefined(ctx); + } +} + +DUK_EXTERNAL void duk_push_current_thread(duk_context *ctx) { + duk_hthread *thr = (duk_hthread *) ctx; + + DUK_ASSERT_CTX_VALID(ctx); + DUK_ASSERT(thr != NULL); + + if (thr->heap->curr_thread) { + duk_push_hobject(ctx, (duk_hobject *) thr->heap->curr_thread); + } else { + duk_push_undefined(ctx); + } +} + +DUK_EXTERNAL void duk_push_global_object(duk_context *ctx) { + DUK_ASSERT_CTX_VALID(ctx); + + duk_push_hobject_bidx(ctx, DUK_BIDX_GLOBAL); +} + +/* XXX: size optimize */ +DUK_LOCAL void duk__push_stash(duk_context *ctx) { + DUK_ASSERT_CTX_VALID(ctx); + if (!duk_get_prop_stridx(ctx, -1, DUK_STRIDX_INT_VALUE)) { + DUK_DDD(DUK_DDDPRINT("creating heap/global/thread stash on first use")); + duk_pop(ctx); + duk_push_object_internal(ctx); + duk_dup_top(ctx); + duk_xdef_prop_stridx(ctx, -3, DUK_STRIDX_INT_VALUE, DUK_PROPDESC_FLAGS_C); /* [ ... parent stash stash ] -> [ ... parent stash ] */ + } + duk_remove(ctx, -2); +} + +DUK_EXTERNAL void duk_push_heap_stash(duk_context *ctx) { + duk_hthread *thr = (duk_hthread *) ctx; + duk_heap *heap; + DUK_ASSERT_CTX_VALID(ctx); + heap = thr->heap; + DUK_ASSERT(heap->heap_object != NULL); + duk_push_hobject(ctx, heap->heap_object); + duk__push_stash(ctx); +} + +DUK_EXTERNAL void duk_push_global_stash(duk_context *ctx) { + DUK_ASSERT_CTX_VALID(ctx); + duk_push_global_object(ctx); + duk__push_stash(ctx); +} + +DUK_EXTERNAL void duk_push_thread_stash(duk_context *ctx, duk_context *target_ctx) { + duk_hthread *thr = (duk_hthread *) ctx; + DUK_ASSERT_CTX_VALID(ctx); + if (!target_ctx) { + DUK_ERROR_API(thr, DUK_STR_INVALID_CALL_ARGS); + return; /* not reached */ + } + duk_push_hobject(ctx, (duk_hobject *) target_ctx); + duk__push_stash(ctx); +} + +/* XXX: duk_ssize_t would be useful here */ +DUK_LOCAL duk_int_t duk__try_push_vsprintf(duk_context *ctx, void *buf, duk_size_t sz, const char *fmt, va_list ap) { + duk_int_t len; + + DUK_ASSERT_CTX_VALID(ctx); + DUK_UNREF(ctx); + + /* NUL terminator handling doesn't matter here */ + len = DUK_VSNPRINTF((char *) buf, sz, fmt, ap); + if (len < (duk_int_t) sz) { + /* Return value of 'sz' or more indicates output was (potentially) + * truncated. + */ + return (duk_int_t) len; + } + return -1; +} + +DUK_EXTERNAL const char *duk_push_vsprintf(duk_context *ctx, const char *fmt, va_list ap) { + duk_hthread *thr = (duk_hthread *) ctx; + duk_uint8_t stack_buf[DUK_PUSH_SPRINTF_INITIAL_SIZE]; + duk_size_t sz = DUK_PUSH_SPRINTF_INITIAL_SIZE; + duk_bool_t pushed_buf = 0; + void *buf; + duk_int_t len; /* XXX: duk_ssize_t */ + const char *res; + + DUK_ASSERT_CTX_VALID(ctx); + + /* special handling of fmt==NULL */ + if (!fmt) { + duk_hstring *h_str; + duk_push_hstring_stridx(ctx, DUK_STRIDX_EMPTY_STRING); + h_str = DUK_HTHREAD_STRING_EMPTY_STRING(thr); /* rely on interning, must be this string */ + return (const char *) DUK_HSTRING_GET_DATA(h_str); + } + + /* initial estimate based on format string */ + sz = DUK_STRLEN(fmt) + 16; /* format plus something to avoid just missing */ + if (sz < DUK_PUSH_SPRINTF_INITIAL_SIZE) { + sz = DUK_PUSH_SPRINTF_INITIAL_SIZE; + } + DUK_ASSERT(sz > 0); + + /* Try to make do with a stack buffer to avoid allocating a temporary buffer. + * This works 99% of the time which is quite nice. + */ + for (;;) { + va_list ap_copy; /* copied so that 'ap' can be reused */ + + if (sz <= sizeof(stack_buf)) { + buf = stack_buf; + } else if (!pushed_buf) { + pushed_buf = 1; + buf = duk_push_dynamic_buffer(ctx, sz); + } else { + buf = duk_resize_buffer(ctx, -1, sz); + } + DUK_ASSERT(buf != NULL); + + DUK_VA_COPY(ap_copy, ap); + len = duk__try_push_vsprintf(ctx, buf, sz, fmt, ap_copy); + va_end(ap_copy); + if (len >= 0) { + break; + } + + /* failed, resize and try again */ + sz = sz * 2; + if (sz >= DUK_PUSH_SPRINTF_SANITY_LIMIT) { + DUK_ERROR_API(thr, DUK_STR_SPRINTF_TOO_LONG); + } + } + + /* Cannot use duk_to_string() on the buffer because it is usually + * larger than 'len'. Also, 'buf' is usually a stack buffer. + */ + res = duk_push_lstring(ctx, (const char *) buf, (duk_size_t) len); /* [ buf? res ] */ + if (pushed_buf) { + duk_remove(ctx, -2); + } + return res; +} + +DUK_EXTERNAL const char *duk_push_sprintf(duk_context *ctx, const char *fmt, ...) { + va_list ap; + const char *ret; + + DUK_ASSERT_CTX_VALID(ctx); + + /* allow fmt==NULL */ + va_start(ap, fmt); + ret = duk_push_vsprintf(ctx, fmt, ap); + va_end(ap); + + return ret; +} + +DUK_INTERNAL duk_idx_t duk_push_object_helper(duk_context *ctx, duk_uint_t hobject_flags_and_class, duk_small_int_t prototype_bidx) { + duk_hthread *thr = (duk_hthread *) ctx; + duk_tval *tv_slot; + duk_hobject *h; + duk_idx_t ret; + + DUK_ASSERT_CTX_VALID(ctx); + DUK_ASSERT(prototype_bidx == -1 || + (prototype_bidx >= 0 && prototype_bidx < DUK_NUM_BUILTINS)); + + /* check stack first */ + if (thr->valstack_top >= thr->valstack_end) { + DUK_ERROR_API(thr, DUK_STR_PUSH_BEYOND_ALLOC_STACK); + } + + h = duk_hobject_alloc(thr->heap, hobject_flags_and_class); + if (!h) { + DUK_ERROR_ALLOC_DEFMSG(thr); + } + + DUK_DDD(DUK_DDDPRINT("created object with flags: 0x%08lx", (unsigned long) h->hdr.h_flags)); + + tv_slot = thr->valstack_top; + DUK_TVAL_SET_OBJECT(tv_slot, h); + DUK_HOBJECT_INCREF(thr, h); /* no side effects */ + ret = (duk_idx_t) (thr->valstack_top - thr->valstack_bottom); + thr->valstack_top++; + + /* object is now reachable */ + + if (prototype_bidx >= 0) { + DUK_HOBJECT_SET_PROTOTYPE_UPDREF(thr, h, thr->builtins[prototype_bidx]); + } else { + DUK_ASSERT(prototype_bidx == -1); + DUK_ASSERT(DUK_HOBJECT_GET_PROTOTYPE(thr->heap, h) == NULL); + } + + return ret; +} + +DUK_INTERNAL duk_idx_t duk_push_object_helper_proto(duk_context *ctx, duk_uint_t hobject_flags_and_class, duk_hobject *proto) { + duk_hthread *thr = (duk_hthread *) ctx; + duk_idx_t ret; + duk_hobject *h; + + DUK_ASSERT_CTX_VALID(ctx); + + ret = duk_push_object_helper(ctx, hobject_flags_and_class, -1); + h = duk_get_hobject(ctx, -1); + DUK_ASSERT(h != NULL); + DUK_ASSERT(DUK_HOBJECT_GET_PROTOTYPE(thr->heap, h) == NULL); + DUK_HOBJECT_SET_PROTOTYPE_UPDREF(thr, h, proto); + return ret; +} + +DUK_EXTERNAL duk_idx_t duk_push_object(duk_context *ctx) { + DUK_ASSERT_CTX_VALID(ctx); + + return duk_push_object_helper(ctx, + DUK_HOBJECT_FLAG_EXTENSIBLE | + DUK_HOBJECT_CLASS_AS_FLAGS(DUK_HOBJECT_CLASS_OBJECT), + DUK_BIDX_OBJECT_PROTOTYPE); +} + +DUK_EXTERNAL duk_idx_t duk_push_array(duk_context *ctx) { + duk_hthread *thr = (duk_hthread *) ctx; + duk_hobject *obj; + duk_idx_t ret; + + DUK_ASSERT_CTX_VALID(ctx); + + ret = duk_push_object_helper(ctx, + DUK_HOBJECT_FLAG_EXTENSIBLE | + DUK_HOBJECT_FLAG_ARRAY_PART | + DUK_HOBJECT_CLASS_AS_FLAGS(DUK_HOBJECT_CLASS_ARRAY), + DUK_BIDX_ARRAY_PROTOTYPE); + + obj = duk_require_hobject(ctx, ret); + + /* + * An array must have a 'length' property (E5 Section 15.4.5.2). + * The special array behavior flag must only be enabled once the + * length property has been added. + * + * The internal property must be a number (and preferably a + * fastint if fastint support is enabled). + */ + + duk_push_int(ctx, 0); +#if defined(DUK_USE_FASTINT) + DUK_ASSERT(DUK_TVAL_IS_FASTINT(duk_require_tval(ctx, -1))); +#endif + + duk_hobject_define_property_internal(thr, + obj, + DUK_HTHREAD_STRING_LENGTH(thr), + DUK_PROPDESC_FLAGS_W); + DUK_HOBJECT_SET_EXOTIC_ARRAY(obj); + + return ret; +} + +DUK_EXTERNAL duk_idx_t duk_push_thread_raw(duk_context *ctx, duk_uint_t flags) { + duk_hthread *thr = (duk_hthread *) ctx; + duk_hthread *obj; + duk_idx_t ret; + duk_tval *tv_slot; + + DUK_ASSERT_CTX_VALID(ctx); + + /* check stack first */ + if (thr->valstack_top >= thr->valstack_end) { + DUK_ERROR_API(thr, DUK_STR_PUSH_BEYOND_ALLOC_STACK); + } + + obj = duk_hthread_alloc(thr->heap, + DUK_HOBJECT_FLAG_EXTENSIBLE | + DUK_HOBJECT_FLAG_THREAD | + DUK_HOBJECT_CLASS_AS_FLAGS(DUK_HOBJECT_CLASS_THREAD)); + if (!obj) { + DUK_ERROR_ALLOC_DEFMSG(thr); + } + obj->state = DUK_HTHREAD_STATE_INACTIVE; +#if defined(DUK_USE_ROM_STRINGS) + /* Nothing to initialize, strs[] is in ROM. */ +#else +#if defined(DUK_USE_HEAPPTR16) + obj->strs16 = thr->strs16; +#else + obj->strs = thr->strs; +#endif +#endif + DUK_DDD(DUK_DDDPRINT("created thread object with flags: 0x%08lx", (unsigned long) obj->obj.hdr.h_flags)); + + /* make the new thread reachable */ + tv_slot = thr->valstack_top; + DUK_TVAL_SET_OBJECT(tv_slot, (duk_hobject *) obj); + DUK_HTHREAD_INCREF(thr, obj); + ret = (duk_idx_t) (thr->valstack_top - thr->valstack_bottom); + thr->valstack_top++; + + /* important to do this *after* pushing, to make the thread reachable for gc */ + if (!duk_hthread_init_stacks(thr->heap, obj)) { + DUK_ERROR_ALLOC_DEFMSG(thr); + } + + /* initialize built-ins - either by copying or creating new ones */ + if (flags & DUK_THREAD_NEW_GLOBAL_ENV) { + duk_hthread_create_builtin_objects(obj); + } else { + duk_hthread_copy_builtin_objects(thr, obj); + } + + /* default prototype (Note: 'obj' must be reachable) */ + DUK_HOBJECT_SET_PROTOTYPE_UPDREF(thr, (duk_hobject *) obj, obj->builtins[DUK_BIDX_THREAD_PROTOTYPE]); + + /* Initial stack size satisfies the stack spare constraints so there + * is no need to require stack here. + */ + DUK_ASSERT(DUK_VALSTACK_INITIAL_SIZE >= + DUK_VALSTACK_API_ENTRY_MINIMUM + DUK_VALSTACK_INTERNAL_EXTRA); + + return ret; +} + +DUK_INTERNAL duk_idx_t duk_push_compiledfunction(duk_context *ctx) { + duk_hthread *thr = (duk_hthread *) ctx; + duk_hcompiledfunction *obj; + duk_idx_t ret; + duk_tval *tv_slot; + + DUK_ASSERT_CTX_VALID(ctx); + + /* check stack first */ + if (thr->valstack_top >= thr->valstack_end) { + DUK_ERROR_API(thr, DUK_STR_PUSH_BEYOND_ALLOC_STACK); + } + + /* Template functions are not strictly constructable (they don't + * have a "prototype" property for instance), so leave the + * DUK_HOBJECT_FLAG_CONSRUCTABLE flag cleared here. + */ + + obj = duk_hcompiledfunction_alloc(thr->heap, + DUK_HOBJECT_FLAG_EXTENSIBLE | + DUK_HOBJECT_FLAG_COMPILEDFUNCTION | + DUK_HOBJECT_CLASS_AS_FLAGS(DUK_HOBJECT_CLASS_FUNCTION)); + if (!obj) { + DUK_ERROR_ALLOC_DEFMSG(thr); + } + + DUK_DDD(DUK_DDDPRINT("created compiled function object with flags: 0x%08lx", (unsigned long) obj->obj.hdr.h_flags)); + + tv_slot = thr->valstack_top; + DUK_TVAL_SET_OBJECT(tv_slot, (duk_hobject *) obj); + DUK_HOBJECT_INCREF(thr, obj); + ret = (duk_idx_t) (thr->valstack_top - thr->valstack_bottom); + thr->valstack_top++; + + /* default prototype (Note: 'obj' must be reachable) */ + DUK_HOBJECT_SET_PROTOTYPE_UPDREF(thr, (duk_hobject *) obj, thr->builtins[DUK_BIDX_FUNCTION_PROTOTYPE]); + + return ret; +} + +DUK_LOCAL duk_idx_t duk__push_c_function_raw(duk_context *ctx, duk_c_function func, duk_idx_t nargs, duk_uint_t flags) { + duk_hthread *thr = (duk_hthread *) ctx; + duk_hnativefunction *obj; + duk_idx_t ret; + duk_tval *tv_slot; + duk_int16_t func_nargs; + + DUK_ASSERT_CTX_VALID(ctx); + + /* check stack first */ + if (thr->valstack_top >= thr->valstack_end) { + DUK_ERROR_API(thr, DUK_STR_PUSH_BEYOND_ALLOC_STACK); + } + if (func == NULL) { + goto api_error; + } + if (nargs >= 0 && nargs < DUK_HNATIVEFUNCTION_NARGS_MAX) { + func_nargs = (duk_int16_t) nargs; + } else if (nargs == DUK_VARARGS) { + func_nargs = DUK_HNATIVEFUNCTION_NARGS_VARARGS; + } else { + goto api_error; + } + + obj = duk_hnativefunction_alloc(thr->heap, flags); + if (!obj) { + DUK_ERROR_ALLOC_DEFMSG(thr); + } + + obj->func = func; + obj->nargs = func_nargs; + + DUK_DDD(DUK_DDDPRINT("created native function object with flags: 0x%08lx, nargs=%ld", + (unsigned long) obj->obj.hdr.h_flags, (long) obj->nargs)); + + tv_slot = thr->valstack_top; + DUK_TVAL_SET_OBJECT(tv_slot, (duk_hobject *) obj); + DUK_HOBJECT_INCREF(thr, obj); + ret = (duk_idx_t) (thr->valstack_top - thr->valstack_bottom); + thr->valstack_top++; + + /* default prototype (Note: 'obj' must be reachable) */ + DUK_HOBJECT_SET_PROTOTYPE_UPDREF(thr, (duk_hobject *) obj, thr->builtins[DUK_BIDX_FUNCTION_PROTOTYPE]); + + return ret; + + api_error: + DUK_ERROR_API(thr, DUK_STR_INVALID_CALL_ARGS); + return 0; /* not reached */ +} + +DUK_EXTERNAL duk_idx_t duk_push_c_function(duk_context *ctx, duk_c_function func, duk_int_t nargs) { + duk_uint_t flags; + + DUK_ASSERT_CTX_VALID(ctx); + + flags = DUK_HOBJECT_FLAG_EXTENSIBLE | + DUK_HOBJECT_FLAG_CONSTRUCTABLE | + DUK_HOBJECT_FLAG_NATIVEFUNCTION | + DUK_HOBJECT_FLAG_NEWENV | + DUK_HOBJECT_FLAG_STRICT | + DUK_HOBJECT_FLAG_NOTAIL | + DUK_HOBJECT_FLAG_EXOTIC_DUKFUNC | + DUK_HOBJECT_CLASS_AS_FLAGS(DUK_HOBJECT_CLASS_FUNCTION); + + return duk__push_c_function_raw(ctx, func, nargs, flags); +} + +DUK_INTERNAL void duk_push_c_function_noexotic(duk_context *ctx, duk_c_function func, duk_int_t nargs) { + duk_uint_t flags; + + DUK_ASSERT_CTX_VALID(ctx); + + flags = DUK_HOBJECT_FLAG_EXTENSIBLE | + DUK_HOBJECT_FLAG_CONSTRUCTABLE | + DUK_HOBJECT_FLAG_NATIVEFUNCTION | + DUK_HOBJECT_FLAG_NEWENV | + DUK_HOBJECT_FLAG_STRICT | + DUK_HOBJECT_FLAG_NOTAIL | + DUK_HOBJECT_CLASS_AS_FLAGS(DUK_HOBJECT_CLASS_FUNCTION); + + (void) duk__push_c_function_raw(ctx, func, nargs, flags); +} + +DUK_INTERNAL void duk_push_c_function_noconstruct_noexotic(duk_context *ctx, duk_c_function func, duk_int_t nargs) { + duk_uint_t flags; + + DUK_ASSERT_CTX_VALID(ctx); + + flags = DUK_HOBJECT_FLAG_EXTENSIBLE | + DUK_HOBJECT_FLAG_NATIVEFUNCTION | + DUK_HOBJECT_FLAG_NEWENV | + DUK_HOBJECT_FLAG_STRICT | + DUK_HOBJECT_FLAG_NOTAIL | + DUK_HOBJECT_CLASS_AS_FLAGS(DUK_HOBJECT_CLASS_FUNCTION); + + (void) duk__push_c_function_raw(ctx, func, nargs, flags); +} + +DUK_EXTERNAL duk_idx_t duk_push_c_lightfunc(duk_context *ctx, duk_c_function func, duk_idx_t nargs, duk_idx_t length, duk_int_t magic) { + duk_hthread *thr = (duk_hthread *) ctx; + duk_tval tv_tmp; + duk_small_uint_t lf_flags; + + DUK_ASSERT_CTX_VALID(ctx); + + /* check stack first */ + if (thr->valstack_top >= thr->valstack_end) { + DUK_ERROR_API(thr, DUK_STR_PUSH_BEYOND_ALLOC_STACK); + } + + if (nargs >= DUK_LFUNC_NARGS_MIN && nargs <= DUK_LFUNC_NARGS_MAX) { + /* as is */ + } else if (nargs == DUK_VARARGS) { + nargs = DUK_LFUNC_NARGS_VARARGS; + } else { + goto api_error; + } + if (!(length >= DUK_LFUNC_LENGTH_MIN && length <= DUK_LFUNC_LENGTH_MAX)) { + goto api_error; + } + if (!(magic >= DUK_LFUNC_MAGIC_MIN && magic <= DUK_LFUNC_MAGIC_MAX)) { + goto api_error; + } + + lf_flags = DUK_LFUNC_FLAGS_PACK(magic, length, nargs); + DUK_TVAL_SET_LIGHTFUNC(&tv_tmp, func, lf_flags); + duk_push_tval(ctx, &tv_tmp); /* XXX: direct valstack write */ + DUK_ASSERT(thr->valstack_top != thr->valstack_bottom); + return ((duk_idx_t) (thr->valstack_top - thr->valstack_bottom)) - 1; + + api_error: + DUK_ERROR_API(thr, DUK_STR_INVALID_CALL_ARGS); + return 0; /* not reached */ +} + +DUK_INTERNAL duk_hbufferobject *duk_push_bufferobject_raw(duk_context *ctx, duk_uint_t hobject_flags_and_class, duk_small_int_t prototype_bidx) { + duk_hthread *thr = (duk_hthread *) ctx; + duk_hbufferobject *obj; + duk_tval *tv_slot; + + DUK_ASSERT(ctx != NULL); + DUK_ASSERT(prototype_bidx >= 0); + + /* check stack first */ + if (thr->valstack_top >= thr->valstack_end) { + DUK_ERROR_API(thr, DUK_STR_PUSH_BEYOND_ALLOC_STACK); + } + + obj = duk_hbufferobject_alloc(thr->heap, hobject_flags_and_class); + if (!obj) { + DUK_ERROR_ALLOC_DEFMSG(thr); + } + + DUK_HOBJECT_SET_PROTOTYPE_UPDREF(thr, (duk_hobject *) obj, thr->builtins[prototype_bidx]); + DUK_ASSERT_HBUFFEROBJECT_VALID(obj); + + tv_slot = thr->valstack_top; + DUK_TVAL_SET_OBJECT(tv_slot, (duk_hobject *) obj); + DUK_HOBJECT_INCREF(thr, obj); + thr->valstack_top++; + + return obj; +} + +/* XXX: There's quite a bit of overlap with buffer creation handling in + * duk_bi_buffer.c. Look for overlap and refactor. + */ +#define DUK__PACK_ARGS(classnum,protobidx,elemtype,elemshift,isview) \ + (((classnum) << 24) | ((protobidx) << 16) | ((elemtype) << 8) | ((elemshift) << 4) | (isview)) + +#if defined(DUK_USE_BUFFEROBJECT_SUPPORT) +static const duk_uint32_t duk__bufobj_flags_lookup[] = { + DUK__PACK_ARGS(DUK_HOBJECT_CLASS_BUFFER, DUK_BIDX_BUFFER_PROTOTYPE, DUK_HBUFFEROBJECT_ELEM_UINT8, 0, 0), /* DUK_BUFOBJ_DUKTAPE_BUFFER */ + DUK__PACK_ARGS(DUK_HOBJECT_CLASS_BUFFER, DUK_BIDX_NODEJS_BUFFER_PROTOTYPE, DUK_HBUFFEROBJECT_ELEM_UINT8, 0, 0), /* DUK_BUFOBJ_NODEJS_BUFFER */ + DUK__PACK_ARGS(DUK_HOBJECT_CLASS_ARRAYBUFFER, DUK_BIDX_ARRAYBUFFER_PROTOTYPE, DUK_HBUFFEROBJECT_ELEM_UINT8, 0, 0), /* DUK_BUFOBJ_ARRAYBUFFER */ + DUK__PACK_ARGS(DUK_HOBJECT_CLASS_DATAVIEW, DUK_BIDX_DATAVIEW_PROTOTYPE, DUK_HBUFFEROBJECT_ELEM_UINT8, 0, 1), /* DUK_BUFOBJ_DATAVIEW */ + DUK__PACK_ARGS(DUK_HOBJECT_CLASS_INT8ARRAY, DUK_BIDX_INT8ARRAY_PROTOTYPE, DUK_HBUFFEROBJECT_ELEM_INT8, 0, 1), /* DUK_BUFOBJ_INT8ARRAY */ + DUK__PACK_ARGS(DUK_HOBJECT_CLASS_UINT8ARRAY, DUK_BIDX_UINT8ARRAY_PROTOTYPE, DUK_HBUFFEROBJECT_ELEM_UINT8, 0, 1), /* DUK_BUFOBJ_UINT8ARRAY */ + DUK__PACK_ARGS(DUK_HOBJECT_CLASS_UINT8CLAMPEDARRAY, DUK_BIDX_UINT8CLAMPEDARRAY_PROTOTYPE, DUK_HBUFFEROBJECT_ELEM_UINT8CLAMPED, 0, 1), /* DUK_BUFOBJ_UINT8CLAMPEDARRAY */ + DUK__PACK_ARGS(DUK_HOBJECT_CLASS_INT16ARRAY, DUK_BIDX_INT16ARRAY_PROTOTYPE, DUK_HBUFFEROBJECT_ELEM_INT16, 1, 1), /* DUK_BUFOBJ_INT16ARRAY */ + DUK__PACK_ARGS(DUK_HOBJECT_CLASS_UINT16ARRAY, DUK_BIDX_UINT16ARRAY_PROTOTYPE, DUK_HBUFFEROBJECT_ELEM_UINT16, 1, 1), /* DUK_BUFOBJ_UINT16ARRAY */ + DUK__PACK_ARGS(DUK_HOBJECT_CLASS_INT32ARRAY, DUK_BIDX_INT32ARRAY_PROTOTYPE, DUK_HBUFFEROBJECT_ELEM_INT32, 2, 1), /* DUK_BUFOBJ_INT32ARRAY */ + DUK__PACK_ARGS(DUK_HOBJECT_CLASS_UINT32ARRAY, DUK_BIDX_UINT32ARRAY_PROTOTYPE, DUK_HBUFFEROBJECT_ELEM_UINT32, 2, 1), /* DUK_BUFOBJ_UINT32ARRAY */ + DUK__PACK_ARGS(DUK_HOBJECT_CLASS_FLOAT32ARRAY, DUK_BIDX_FLOAT32ARRAY_PROTOTYPE, DUK_HBUFFEROBJECT_ELEM_FLOAT32, 2, 1), /* DUK_BUFOBJ_FLOAT32ARRAY */ + DUK__PACK_ARGS(DUK_HOBJECT_CLASS_FLOAT64ARRAY, DUK_BIDX_FLOAT64ARRAY_PROTOTYPE, DUK_HBUFFEROBJECT_ELEM_FLOAT64, 3, 1) /* DUK_BUFOBJ_FLOAT64ARRAY */ +}; +#else /* DUK_USE_BUFFEROBJECT_SUPPORT */ +/* Only allow Duktape.Buffer when support disabled. */ +static const duk_uint32_t duk__bufobj_flags_lookup[] = { + DUK__PACK_ARGS(DUK_HOBJECT_CLASS_BUFFER, DUK_BIDX_BUFFER_PROTOTYPE, DUK_HBUFFEROBJECT_ELEM_UINT8, 0, 0) /* DUK_BUFOBJ_DUKTAPE_BUFFER */ +}; +#endif /* DUK_USE_BUFFEROBJECT_SUPPORT */ +#undef DUK__PACK_ARGS + +DUK_EXTERNAL void duk_push_buffer_object(duk_context *ctx, duk_idx_t idx_buffer, duk_size_t byte_offset, duk_size_t byte_length, duk_uint_t flags) { + duk_hthread *thr; + duk_hbufferobject *h_bufobj; + duk_hbuffer *h_val; + duk_uint32_t tmp; + duk_uint_t classnum; + duk_uint_t protobidx; + duk_uint_t lookupidx; + duk_uint_t uint_offset, uint_length, uint_added; + + DUK_ASSERT_CTX_VALID(ctx); + thr = (duk_hthread *) ctx; + DUK_UNREF(thr); + + /* The underlying types for offset/length in duk_hbufferobject is + * duk_uint_t; make sure argument values fit and that offset + length + * does not wrap. + */ + uint_offset = (duk_uint_t) byte_offset; + uint_length = (duk_uint_t) byte_length; + if (sizeof(duk_size_t) != sizeof(duk_uint_t)) { + if ((duk_size_t) uint_offset != byte_offset || (duk_size_t) uint_length != byte_length) { + goto range_error; + } + } + uint_added = uint_offset + uint_length; + if (uint_added < uint_offset) { + goto range_error; + } + DUK_ASSERT(uint_added >= uint_offset && uint_added >= uint_length); + + DUK_ASSERT_DISABLE(flags >= 0); /* flags is unsigned */ + lookupidx = flags & 0x0f; /* 4 low bits */ + if (lookupidx >= sizeof(duk__bufobj_flags_lookup) / sizeof(duk_uint32_t)) { + goto arg_error; + } + tmp = duk__bufobj_flags_lookup[lookupidx]; + classnum = tmp >> 24; + protobidx = (tmp >> 16) & 0xff; + + h_val = duk_require_hbuffer(ctx, idx_buffer); + DUK_ASSERT(h_val != NULL); + + h_bufobj = duk_push_bufferobject_raw(ctx, + DUK_HOBJECT_FLAG_EXTENSIBLE | + DUK_HOBJECT_FLAG_BUFFEROBJECT | + DUK_HOBJECT_CLASS_AS_FLAGS(classnum), + protobidx); + DUK_ASSERT(h_bufobj != NULL); + + h_bufobj->buf = h_val; + DUK_HBUFFER_INCREF(thr, h_val); + h_bufobj->offset = uint_offset; + h_bufobj->length = uint_length; + h_bufobj->shift = (tmp >> 4) & 0x0f; + h_bufobj->elem_type = (tmp >> 8) & 0xff; + h_bufobj->is_view = tmp & 0x0f; + DUK_ASSERT_HBUFFEROBJECT_VALID(h_bufobj); + +#if defined(DUK_USE_BUFFEROBJECT_SUPPORT) + /* TypedArray views need an automatic ArrayBuffer which must be + * provided as .buffer property of the view. Just create a new + * ArrayBuffer sharing the same underlying buffer. + */ + if (flags & DUK_BUFOBJ_CREATE_ARRBUF) { + h_bufobj = duk_push_bufferobject_raw(ctx, + DUK_HOBJECT_FLAG_EXTENSIBLE | + DUK_HOBJECT_FLAG_BUFFEROBJECT | + DUK_HOBJECT_CLASS_AS_FLAGS(DUK_HOBJECT_CLASS_ARRAYBUFFER), + DUK_BIDX_ARRAYBUFFER_PROTOTYPE); + + DUK_ASSERT(h_bufobj != NULL); + + h_bufobj->buf = h_val; + DUK_HBUFFER_INCREF(thr, h_val); + h_bufobj->offset = uint_offset; + h_bufobj->length = uint_length; + DUK_ASSERT(h_bufobj->shift == 0); + h_bufobj->elem_type = DUK_HBUFFEROBJECT_ELEM_UINT8; + DUK_ASSERT(h_bufobj->is_view == 0); + DUK_ASSERT_HBUFFEROBJECT_VALID(h_bufobj); + + duk_xdef_prop_stridx(ctx, -2, DUK_STRIDX_LC_BUFFER, DUK_PROPDESC_FLAGS_NONE); + duk_compact(ctx, -1); + } +#endif /* DUK_USE_BUFFEROBJECT_SUPPORT */ + + return; + + range_error: + DUK_ERROR_RANGE(thr, DUK_STR_INVALID_CALL_ARGS); + return; /* not reached */ + + arg_error: + DUK_ERROR_TYPE(thr, DUK_STR_INVALID_CALL_ARGS); + return; /* not reached */ +} + +DUK_EXTERNAL duk_idx_t duk_push_error_object_va_raw(duk_context *ctx, duk_errcode_t err_code, const char *filename, duk_int_t line, const char *fmt, va_list ap) { + duk_hthread *thr = (duk_hthread *) ctx; + duk_idx_t ret; + duk_hobject *proto; +#ifdef DUK_USE_AUGMENT_ERROR_CREATE + duk_bool_t noblame_fileline; +#endif + + DUK_ASSERT_CTX_VALID(ctx); + DUK_ASSERT(thr != NULL); + DUK_UNREF(filename); + DUK_UNREF(line); + + /* Error code also packs a tracedata related flag. */ +#ifdef DUK_USE_AUGMENT_ERROR_CREATE + noblame_fileline = err_code & DUK_ERRCODE_FLAG_NOBLAME_FILELINE; +#endif + err_code = err_code & (~DUK_ERRCODE_FLAG_NOBLAME_FILELINE); + + /* error gets its 'name' from the prototype */ + proto = duk_error_prototype_from_code(thr, err_code); + ret = duk_push_object_helper_proto(ctx, + DUK_HOBJECT_FLAG_EXTENSIBLE | + DUK_HOBJECT_CLASS_AS_FLAGS(DUK_HOBJECT_CLASS_ERROR), + proto); + + /* ... and its 'message' from an instance property */ + if (fmt) { + duk_push_vsprintf(ctx, fmt, ap); + duk_xdef_prop_stridx(ctx, -2, DUK_STRIDX_MESSAGE, DUK_PROPDESC_FLAGS_WC); + } else { + /* If no explicit message given, put error code into message field + * (as a number). This is not fully in keeping with the Ecmascript + * error model because messages are supposed to be strings (Error + * constructors use ToString() on their argument). However, it's + * probably more useful than having a separate 'code' property. + */ + duk_push_int(ctx, err_code); + duk_xdef_prop_stridx(ctx, -2, DUK_STRIDX_MESSAGE, DUK_PROPDESC_FLAGS_WC); + } + + /* XXX: .code = err_code disabled, not sure if useful */ + + /* Creation time error augmentation */ +#ifdef DUK_USE_AUGMENT_ERROR_CREATE + /* filename may be NULL in which case file/line is not recorded */ + duk_err_augment_error_create(thr, thr, filename, line, noblame_fileline); /* may throw an error */ +#endif + + return ret; +} + +DUK_EXTERNAL duk_idx_t duk_push_error_object_raw(duk_context *ctx, duk_errcode_t err_code, const char *filename, duk_int_t line, const char *fmt, ...) { + va_list ap; + duk_idx_t ret; + + DUK_ASSERT_CTX_VALID(ctx); + + va_start(ap, fmt); + ret = duk_push_error_object_va_raw(ctx, err_code, filename, line, fmt, ap); + va_end(ap); + return ret; +} + +#if !defined(DUK_USE_VARIADIC_MACROS) +DUK_EXTERNAL duk_idx_t duk_push_error_object_stash(duk_context *ctx, duk_errcode_t err_code, const char *fmt, ...) { + const char *filename = duk_api_global_filename; + duk_int_t line = duk_api_global_line; + va_list ap; + duk_idx_t ret; + + DUK_ASSERT_CTX_VALID(ctx); + + duk_api_global_filename = NULL; + duk_api_global_line = 0; + va_start(ap, fmt); + ret = duk_push_error_object_va_raw(ctx, err_code, filename, line, fmt, ap); + va_end(ap); + return ret; +} +#endif /* DUK_USE_VARIADIC_MACROS */ + +DUK_EXTERNAL void *duk_push_buffer_raw(duk_context *ctx, duk_size_t size, duk_small_uint_t flags) { + duk_hthread *thr = (duk_hthread *) ctx; + duk_tval *tv_slot; + duk_hbuffer *h; + void *buf_data; + + DUK_ASSERT_CTX_VALID(ctx); + + /* check stack first */ + if (thr->valstack_top >= thr->valstack_end) { + DUK_ERROR_API(thr, DUK_STR_PUSH_BEYOND_ALLOC_STACK); + } + + /* Check for maximum buffer length. */ + if (size > DUK_HBUFFER_MAX_BYTELEN) { + DUK_ERROR_RANGE(thr, DUK_STR_BUFFER_TOO_LONG); + } + + h = duk_hbuffer_alloc(thr->heap, size, flags, &buf_data); + if (!h) { + DUK_ERROR_ALLOC_DEFMSG(thr); + } + + tv_slot = thr->valstack_top; + DUK_TVAL_SET_BUFFER(tv_slot, h); + DUK_HBUFFER_INCREF(thr, h); + thr->valstack_top++; + + return (void *) buf_data; +} + +DUK_EXTERNAL duk_idx_t duk_push_heapptr(duk_context *ctx, void *ptr) { + duk_hthread *thr = (duk_hthread *) ctx; + duk_idx_t ret; + + DUK_ASSERT_CTX_VALID(ctx); + + ret = (duk_idx_t) (thr->valstack_top - thr->valstack_bottom); + + if (ptr == NULL) { + goto push_undefined; + } + + switch ((int) DUK_HEAPHDR_GET_TYPE((duk_heaphdr *) ptr)) { + case DUK_HTYPE_STRING: + duk_push_hstring(ctx, (duk_hstring *) ptr); + break; + case DUK_HTYPE_OBJECT: + duk_push_hobject(ctx, (duk_hobject *) ptr); + break; + case DUK_HTYPE_BUFFER: + duk_push_hbuffer(ctx, (duk_hbuffer *) ptr); + break; + default: + goto push_undefined; + } + return ret; + + push_undefined: + duk_push_undefined(ctx); + return ret; +} + +DUK_INTERNAL duk_idx_t duk_push_object_internal(duk_context *ctx) { + return duk_push_object_helper(ctx, + DUK_HOBJECT_FLAG_EXTENSIBLE | + DUK_HOBJECT_CLASS_AS_FLAGS(DUK_HOBJECT_CLASS_OBJECT), + -1); /* no prototype */ +} + +DUK_INTERNAL void duk_push_hstring(duk_context *ctx, duk_hstring *h) { + duk_tval tv; + DUK_ASSERT_CTX_VALID(ctx); + DUK_ASSERT(h != NULL); + DUK_TVAL_SET_STRING(&tv, h); + duk_push_tval(ctx, &tv); +} + +DUK_INTERNAL void duk_push_hstring_stridx(duk_context *ctx, duk_small_int_t stridx) { + duk_hthread *thr = (duk_hthread *) ctx; + DUK_UNREF(thr); + DUK_ASSERT(stridx >= 0 && stridx < DUK_HEAP_NUM_STRINGS); + duk_push_hstring(ctx, DUK_HTHREAD_GET_STRING(thr, stridx)); +} + +DUK_INTERNAL void duk_push_hobject(duk_context *ctx, duk_hobject *h) { + duk_tval tv; + DUK_ASSERT_CTX_VALID(ctx); + DUK_ASSERT(h != NULL); + DUK_TVAL_SET_OBJECT(&tv, h); + duk_push_tval(ctx, &tv); +} + +DUK_INTERNAL void duk_push_hbuffer(duk_context *ctx, duk_hbuffer *h) { + duk_tval tv; + DUK_ASSERT_CTX_VALID(ctx); + DUK_ASSERT(h != NULL); + DUK_TVAL_SET_BUFFER(&tv, h); + duk_push_tval(ctx, &tv); +} + +DUK_INTERNAL void duk_push_hobject_bidx(duk_context *ctx, duk_small_int_t builtin_idx) { + duk_hthread *thr = (duk_hthread *) ctx; + DUK_ASSERT_CTX_VALID(ctx); + DUK_ASSERT(thr != NULL); + DUK_ASSERT(builtin_idx >= 0 && builtin_idx < DUK_NUM_BUILTINS); + DUK_ASSERT(thr->builtins[builtin_idx] != NULL); + duk_push_hobject(ctx, thr->builtins[builtin_idx]); +} + +/* + * Poppers + */ + +DUK_EXTERNAL void duk_pop_n(duk_context *ctx, duk_idx_t count) { + duk_hthread *thr = (duk_hthread *) ctx; + duk_tval *tv; + + DUK_ASSERT_CTX_VALID(ctx); + + if (DUK_UNLIKELY(count < 0)) { + DUK_ERROR_API(thr, DUK_STR_INVALID_COUNT); + return; + } + + DUK_ASSERT(thr->valstack_top >= thr->valstack_bottom); + if (DUK_UNLIKELY((duk_size_t) (thr->valstack_top - thr->valstack_bottom) < (duk_size_t) count)) { + DUK_ERROR_API(thr, DUK_STR_POP_TOO_MANY); + } + + /* + * Must be very careful here, every DECREF may cause reallocation + * of our valstack. + */ + + /* XXX: inlined DECREF macro would be nice here: no NULL check, + * refzero queueing but no refzero algorithm run (= no pointer + * instability), inline code. + */ + + /* XXX: optimize loops */ + +#if defined(DUK_USE_REFERENCE_COUNTING) + while (count > 0) { + count--; + tv = --thr->valstack_top; /* tv points to element just below prev top */ + DUK_ASSERT(tv >= thr->valstack_bottom); + DUK_TVAL_SET_UNDEFINED_UPDREF(thr, tv); /* side effects */ + } +#else + tv = thr->valstack_top; + while (count > 0) { + count--; + tv--; + DUK_ASSERT(tv >= thr->valstack_bottom); + DUK_TVAL_SET_UNDEFINED(tv); + } + thr->valstack_top = tv; +#endif + + DUK_ASSERT(thr->valstack_top >= thr->valstack_bottom); +} + +/* Popping one element is called so often that when footprint is not an issue, + * compile a specialized function for it. + */ +#if defined(DUK_USE_PREFER_SIZE) +DUK_EXTERNAL void duk_pop(duk_context *ctx) { + DUK_ASSERT_CTX_VALID(ctx); + duk_pop_n(ctx, 1); +} +#else +DUK_EXTERNAL void duk_pop(duk_context *ctx) { + duk_hthread *thr = (duk_hthread *) ctx; + duk_tval *tv; + DUK_ASSERT_CTX_VALID(ctx); + + DUK_ASSERT(thr->valstack_top >= thr->valstack_bottom); + if (DUK_UNLIKELY(thr->valstack_top == thr->valstack_bottom)) { + DUK_ERROR_API(thr, DUK_STR_POP_TOO_MANY); + } + + tv = --thr->valstack_top; /* tv points to element just below prev top */ + DUK_ASSERT(tv >= thr->valstack_bottom); +#ifdef DUK_USE_REFERENCE_COUNTING + DUK_TVAL_SET_UNDEFINED_UPDREF(thr, tv); /* side effects */ +#else + DUK_TVAL_SET_UNDEFINED(tv); +#endif + DUK_ASSERT(thr->valstack_top >= thr->valstack_bottom); +} +#endif /* !DUK_USE_PREFER_SIZE */ + +DUK_EXTERNAL void duk_pop_2(duk_context *ctx) { + DUK_ASSERT_CTX_VALID(ctx); + duk_pop_n(ctx, 2); +} + +DUK_EXTERNAL void duk_pop_3(duk_context *ctx) { + DUK_ASSERT_CTX_VALID(ctx); + duk_pop_n(ctx, 3); +} + +/* + * Error throwing + */ + +DUK_EXTERNAL void duk_throw(duk_context *ctx) { + duk_hthread *thr = (duk_hthread *) ctx; + + DUK_ASSERT(thr->valstack_bottom >= thr->valstack); + DUK_ASSERT(thr->valstack_top >= thr->valstack_bottom); + DUK_ASSERT(thr->valstack_end >= thr->valstack_top); + + if (thr->valstack_top == thr->valstack_bottom) { + DUK_ERROR_API(thr, DUK_STR_INVALID_CALL_ARGS); + } + + /* Errors are augmented when they are created, not when they are + * thrown or re-thrown. The current error handler, however, runs + * just before an error is thrown. + */ + + /* Sync so that augmentation sees up-to-date activations, NULL + * thr->ptr_curr_pc so that it's not used if side effects occur + * in augmentation or longjmp handling. + */ + duk_hthread_sync_and_null_currpc(thr); + +#if defined(DUK_USE_AUGMENT_ERROR_THROW) + DUK_DDD(DUK_DDDPRINT("THROW ERROR (API): %!dT (before throw augment)", (duk_tval *) duk_get_tval(ctx, -1))); + duk_err_augment_error_throw(thr); +#endif + DUK_DDD(DUK_DDDPRINT("THROW ERROR (API): %!dT (after throw augment)", (duk_tval *) duk_get_tval(ctx, -1))); + + duk_err_setup_heap_ljstate(thr, DUK_LJ_TYPE_THROW); + + /* thr->heap->lj.jmpbuf_ptr is checked by duk_err_longjmp() so we don't + * need to check that here. If the value is NULL, a panic occurs because + * we can't return. + */ + + duk_err_longjmp(thr); + DUK_UNREACHABLE(); +} + +DUK_EXTERNAL void duk_fatal(duk_context *ctx, duk_errcode_t err_code, const char *err_msg) { + duk_hthread *thr = (duk_hthread *) ctx; + + DUK_ASSERT_CTX_VALID(ctx); + DUK_ASSERT(thr != NULL); + DUK_ASSERT(thr->heap != NULL); + DUK_ASSERT(thr->heap->fatal_func != NULL); + + DUK_D(DUK_DPRINT("fatal error occurred, code %ld, message %s", + (long) err_code, (const char *) err_msg)); + + /* fatal_func should be noreturn, but noreturn declarations on function + * pointers has a very spotty support apparently so it's not currently + * done. + */ + thr->heap->fatal_func(ctx, err_code, err_msg); + + DUK_PANIC(DUK_ERR_API_ERROR, "fatal handler returned"); +} + +DUK_EXTERNAL void duk_error_va_raw(duk_context *ctx, duk_errcode_t err_code, const char *filename, duk_int_t line, const char *fmt, va_list ap) { + DUK_ASSERT_CTX_VALID(ctx); + + duk_push_error_object_va_raw(ctx, err_code, filename, line, fmt, ap); + duk_throw(ctx); +} + +DUK_EXTERNAL void duk_error_raw(duk_context *ctx, duk_errcode_t err_code, const char *filename, duk_int_t line, const char *fmt, ...) { + va_list ap; + + DUK_ASSERT_CTX_VALID(ctx); + + va_start(ap, fmt); + duk_push_error_object_va_raw(ctx, err_code, filename, line, fmt, ap); + va_end(ap); + duk_throw(ctx); +} + +#if !defined(DUK_USE_VARIADIC_MACROS) +DUK_EXTERNAL void duk_error_stash(duk_context *ctx, duk_errcode_t err_code, const char *fmt, ...) { + const char *filename; + duk_int_t line; + va_list ap; + + DUK_ASSERT_CTX_VALID(ctx); + + filename = duk_api_global_filename; + line = duk_api_global_line; + duk_api_global_filename = NULL; + duk_api_global_line = 0; + + va_start(ap, fmt); + duk_push_error_object_va_raw(ctx, err_code, filename, line, fmt, ap); + va_end(ap); + duk_throw(ctx); +} +#endif /* DUK_USE_VARIADIC_MACROS */ + +/* + * Comparison + */ + +DUK_EXTERNAL duk_bool_t duk_equals(duk_context *ctx, duk_idx_t index1, duk_idx_t index2) { + duk_hthread *thr = (duk_hthread *) ctx; + duk_tval *tv1, *tv2; + + DUK_ASSERT_CTX_VALID(ctx); + + tv1 = duk_get_tval(ctx, index1); + tv2 = duk_get_tval(ctx, index2); + if ((tv1 == NULL) || (tv2 == NULL)) { + return 0; + } + + /* Coercion may be needed, the helper handles that by pushing the + * tagged values to the stack. + */ + return duk_js_equals(thr, tv1, tv2); +} + +DUK_EXTERNAL duk_bool_t duk_strict_equals(duk_context *ctx, duk_idx_t index1, duk_idx_t index2) { + duk_tval *tv1, *tv2; + + DUK_ASSERT_CTX_VALID(ctx); + + tv1 = duk_get_tval(ctx, index1); + tv2 = duk_get_tval(ctx, index2); + if ((tv1 == NULL) || (tv2 == NULL)) { + return 0; + } + + /* No coercions or other side effects, so safe */ + return duk_js_strict_equals(tv1, tv2); +} + +/* + * instanceof + */ + +DUK_EXTERNAL duk_bool_t duk_instanceof(duk_context *ctx, duk_idx_t index1, duk_idx_t index2) { + duk_tval *tv1, *tv2; + + DUK_ASSERT_CTX_VALID(ctx); + + /* Index validation is strict, which differs from duk_equals(). + * The strict behavior mimics how instanceof itself works, e.g. + * it is a TypeError if rval is not a -callable- object. It would + * be somewhat inconsistent if rval would be allowed to be + * non-existent without a TypeError. + */ + tv1 = duk_require_tval(ctx, index1); + DUK_ASSERT(tv1 != NULL); + tv2 = duk_require_tval(ctx, index2); + DUK_ASSERT(tv2 != NULL); + + return duk_js_instanceof((duk_hthread *) ctx, tv1, tv2); +} + +/* + * Lightfunc + */ + +DUK_INTERNAL void duk_push_lightfunc_name(duk_context *ctx, duk_tval *tv) { + duk_c_function func; + + DUK_ASSERT(DUK_TVAL_IS_LIGHTFUNC(tv)); + + /* Lightfunc name, includes Duktape/C native function pointer, which + * can often be used to locate the function from a symbol table. + * The name also includes the 16-bit duk_tval flags field because it + * includes the magic value. Because a single native function often + * provides different functionality depending on the magic value, it + * seems reasonably to include it in the name. + * + * On the other hand, a complicated name increases string table + * pressure in low memory environments (but only when function name + * is accessed). + */ + + func = DUK_TVAL_GET_LIGHTFUNC_FUNCPTR(tv); + duk_push_sprintf(ctx, "light_"); + duk_push_string_funcptr(ctx, (duk_uint8_t *) &func, sizeof(func)); + duk_push_sprintf(ctx, "_%04x", (unsigned int) DUK_TVAL_GET_LIGHTFUNC_FLAGS(tv)); + duk_concat(ctx, 3); +} + +DUK_INTERNAL void duk_push_lightfunc_tostring(duk_context *ctx, duk_tval *tv) { + DUK_ASSERT(DUK_TVAL_IS_LIGHTFUNC(tv)); + + duk_push_string(ctx, "function "); + duk_push_lightfunc_name(ctx, tv); + duk_push_string(ctx, "() {\"light\"}"); + duk_concat(ctx, 3); +} + +/* + * Function pointers + * + * Printing function pointers is non-portable, so we do that by hex printing + * bytes from memory. + */ + +DUK_INTERNAL void duk_push_string_funcptr(duk_context *ctx, duk_uint8_t *ptr, duk_size_t sz) { + duk_uint8_t buf[32 * 2]; + duk_uint8_t *p, *q; + duk_small_uint_t i; + duk_small_uint_t t; + + DUK_ASSERT(sz <= 32); /* sanity limit for function pointer size */ + + p = buf; +#if defined(DUK_USE_INTEGER_LE) + q = ptr + sz; +#else + q = ptr; +#endif + for (i = 0; i < sz; i++) { +#if defined(DUK_USE_INTEGER_LE) + t = *(--q); +#else + t = *(q++); +#endif + *p++ = duk_lc_digits[t >> 4]; + *p++ = duk_lc_digits[t & 0x0f]; + } + + duk_push_lstring(ctx, (const char *) buf, sz * 2); +} + +#if !defined(DUK_USE_PARANOID_ERRORS) +/* + * Push readable string summarizing duk_tval. The operation is side effect + * free and will only throw from internal errors (e.g. out of memory). + * This is used by e.g. property access code to summarize a key/base safely, + * and is not intended to be fast (but small and safe). + */ + +#define DUK__READABLE_STRING_MAXCHARS 32 + +/* String sanitizer which escapes ASCII control characters and a few other + * ASCII characters, passes Unicode as is, and replaces invalid UTF-8 with + * question marks. No errors are thrown for any input string, except in out + * of memory situations. + */ +DUK_LOCAL void duk__push_hstring_readable_unicode(duk_context *ctx, duk_hstring *h_input) { + duk_hthread *thr; + const duk_uint8_t *p, *p_start, *p_end; + duk_uint8_t buf[DUK_UNICODE_MAX_XUTF8_LENGTH * DUK__READABLE_STRING_MAXCHARS + + 2 /*quotes*/ + 3 /*periods*/]; + duk_uint8_t *q; + duk_ucodepoint_t cp; + duk_small_uint_t nchars; + + DUK_ASSERT_CTX_VALID(ctx); + DUK_ASSERT(h_input != NULL); + thr = (duk_hthread *) ctx; + + p_start = (const duk_uint8_t *) DUK_HSTRING_GET_DATA(h_input); + p_end = p_start + DUK_HSTRING_GET_BYTELEN(h_input); + p = p_start; + q = buf; + + nchars = 0; + *q++ = (duk_uint8_t) DUK_ASC_SINGLEQUOTE; + for (;;) { + if (p >= p_end) { + break; + } + if (nchars == DUK__READABLE_STRING_MAXCHARS) { + *q++ = (duk_uint8_t) DUK_ASC_PERIOD; + *q++ = (duk_uint8_t) DUK_ASC_PERIOD; + *q++ = (duk_uint8_t) DUK_ASC_PERIOD; + break; + } + if (duk_unicode_decode_xutf8(thr, &p, p_start, p_end, &cp)) { + if (cp < 0x20 || cp == 0x7f || cp == DUK_ASC_SINGLEQUOTE || cp == DUK_ASC_BACKSLASH) { + DUK_ASSERT(DUK_UNICODE_MAX_XUTF8_LENGTH >= 4); /* estimate is valid */ + DUK_ASSERT((cp >> 4) <= 0x0f); + *q++ = (duk_uint8_t) DUK_ASC_BACKSLASH; + *q++ = (duk_uint8_t) DUK_ASC_LC_X; + *q++ = (duk_uint8_t) duk_lc_digits[cp >> 4]; + *q++ = (duk_uint8_t) duk_lc_digits[cp & 0x0f]; + } else { + q += duk_unicode_encode_xutf8(cp, q); + } + } else { + p++; /* advance manually */ + *q++ = (duk_uint8_t) DUK_ASC_QUESTION; + } + nchars++; + } + *q++ = (duk_uint8_t) DUK_ASC_SINGLEQUOTE; + + duk_push_lstring(ctx, (const char *) buf, (duk_size_t) (q - buf)); +} + +DUK_INTERNAL const char *duk_push_string_tval_readable(duk_context *ctx, duk_tval *tv) { + duk_hthread *thr; + + DUK_ASSERT_CTX_VALID(ctx); + thr = (duk_hthread *) ctx; + DUK_UNREF(thr); + + if (tv == NULL) { + duk_push_string(ctx, "none"); + } else { + switch (DUK_TVAL_GET_TAG(tv)) { + case DUK_TAG_STRING: { + duk__push_hstring_readable_unicode(ctx, DUK_TVAL_GET_STRING(tv)); + break; + } + case DUK_TAG_OBJECT: { + duk_hobject *h = DUK_TVAL_GET_OBJECT(tv); + DUK_ASSERT(h != NULL); + duk_push_hobject_class_string(ctx, h); + break; + } + case DUK_TAG_BUFFER: { + /* XXX: Hex encoded, length limited buffer summary here? */ + duk_hbuffer *h = DUK_TVAL_GET_BUFFER(tv); + DUK_ASSERT(h != NULL); + duk_push_sprintf(ctx, "[buffer:%ld]", (long) DUK_HBUFFER_GET_SIZE(h)); + break; + } + case DUK_TAG_POINTER: { + /* Surround with parentheses like in JX, ensures NULL pointer + * is distinguishable from null value ("(null)" vs "null"). + */ + duk_push_tval(ctx, tv); + duk_push_sprintf(ctx, "(%s)", duk_to_string(ctx, -1)); + duk_remove(ctx, -2); + break; + } + default: { + duk_push_tval(ctx, tv); + break; + } + } + } + + return duk_to_string(ctx, -1); +} + +DUK_INTERNAL const char *duk_push_string_readable(duk_context *ctx, duk_idx_t index) { + DUK_ASSERT_CTX_VALID(ctx); + return duk_push_string_tval_readable(ctx, duk_get_tval(ctx, index)); +} +#endif /* !DUK_USE_PARANOID_ERRORS */ + +#undef DUK__CHECK_SPACE +#undef DUK__PACK_ARGS +#undef DUK__READABLE_STRING_MAXCHARS +#line 1 "duk_api_string.c" +/* + * String manipulation + */ + +/* include removed: duk_internal.h */ + +DUK_LOCAL void duk__concat_and_join_helper(duk_context *ctx, duk_idx_t count_in, duk_bool_t is_join) { + duk_hthread *thr = (duk_hthread *) ctx; + duk_uint_t count; + duk_uint_t i; + duk_size_t idx; + duk_size_t len; + duk_hstring *h; + duk_uint8_t *buf; + + DUK_ASSERT_CTX_VALID(ctx); + + if (DUK_UNLIKELY(count_in <= 0)) { + if (count_in < 0) { + DUK_ERROR_API(thr, DUK_STR_INVALID_COUNT); + return; + } + DUK_ASSERT(count_in == 0); + duk_push_hstring_stridx(ctx, DUK_STRIDX_EMPTY_STRING); + return; + } + count = (duk_uint_t) count_in; + + if (is_join) { + duk_size_t t1, t2, limit; + h = duk_to_hstring(ctx, -((duk_idx_t) count) - 1); + DUK_ASSERT(h != NULL); + + /* A bit tricky overflow test, see doc/code-issues.rst. */ + t1 = (duk_size_t) DUK_HSTRING_GET_BYTELEN(h); + t2 = (duk_size_t) (count - 1); + limit = (duk_size_t) DUK_HSTRING_MAX_BYTELEN; + if (DUK_UNLIKELY(t2 != 0 && t1 > limit / t2)) { + /* Combined size of separators already overflows */ + goto error_overflow; + } + len = (duk_size_t) (t1 * t2); + } else { + len = (duk_size_t) 0; + } + + for (i = count; i >= 1; i--) { + duk_size_t new_len; + duk_to_string(ctx, -((duk_idx_t) i)); + h = duk_require_hstring(ctx, -((duk_idx_t) i)); + new_len = len + (duk_size_t) DUK_HSTRING_GET_BYTELEN(h); + + /* Impose a string maximum length, need to handle overflow + * correctly. + */ + if (new_len < len || /* wrapped */ + new_len > (duk_size_t) DUK_HSTRING_MAX_BYTELEN) { + goto error_overflow; + } + len = new_len; + } + + DUK_DDD(DUK_DDDPRINT("join/concat %lu strings, total length %lu bytes", + (unsigned long) count, (unsigned long) len)); + + /* use stack allocated buffer to ensure reachability in errors (e.g. intern error) */ + buf = (duk_uint8_t *) duk_push_fixed_buffer(ctx, len); + DUK_ASSERT(buf != NULL); + + /* [... (sep) str1 str2 ... strN buf] */ + + idx = 0; + for (i = count; i >= 1; i--) { + if (is_join && i != count) { + h = duk_require_hstring(ctx, -((duk_idx_t) count) - 2); /* extra -1 for buffer */ + DUK_MEMCPY(buf + idx, DUK_HSTRING_GET_DATA(h), DUK_HSTRING_GET_BYTELEN(h)); + idx += DUK_HSTRING_GET_BYTELEN(h); + } + h = duk_require_hstring(ctx, -((duk_idx_t) i) - 1); /* extra -1 for buffer */ + DUK_MEMCPY(buf + idx, DUK_HSTRING_GET_DATA(h), DUK_HSTRING_GET_BYTELEN(h)); + idx += DUK_HSTRING_GET_BYTELEN(h); + } + + DUK_ASSERT(idx == len); + + /* [... (sep) str1 str2 ... strN buf] */ + + /* get rid of the strings early to minimize memory use before intern */ + + if (is_join) { + duk_replace(ctx, -((duk_idx_t) count) - 2); /* overwrite sep */ + duk_pop_n(ctx, count); + } else { + duk_replace(ctx, -((duk_idx_t) count) - 1); /* overwrite str1 */ + duk_pop_n(ctx, count-1); + } + + /* [... buf] */ + + (void) duk_to_string(ctx, -1); + + /* [... res] */ + return; + + error_overflow: + DUK_ERROR_RANGE(thr, DUK_STR_CONCAT_RESULT_TOO_LONG); +} + +DUK_EXTERNAL void duk_concat(duk_context *ctx, duk_idx_t count) { + DUK_ASSERT_CTX_VALID(ctx); + + duk__concat_and_join_helper(ctx, count, 0 /*is_join*/); +} + +DUK_EXTERNAL void duk_join(duk_context *ctx, duk_idx_t count) { + DUK_ASSERT_CTX_VALID(ctx); + + duk__concat_and_join_helper(ctx, count, 1 /*is_join*/); +} + +/* XXX: could map/decode be unified with duk_unicode_support.c code? + * Case conversion needs also the character surroundings though. + */ + +DUK_EXTERNAL void duk_decode_string(duk_context *ctx, duk_idx_t index, duk_decode_char_function callback, void *udata) { + duk_hthread *thr = (duk_hthread *) ctx; + duk_hstring *h_input; + const duk_uint8_t *p, *p_start, *p_end; + duk_codepoint_t cp; + + DUK_ASSERT_CTX_VALID(ctx); + + h_input = duk_require_hstring(ctx, index); + DUK_ASSERT(h_input != NULL); + + p_start = (const duk_uint8_t *) DUK_HSTRING_GET_DATA(h_input); + p_end = p_start + DUK_HSTRING_GET_BYTELEN(h_input); + p = p_start; + + for (;;) { + if (p >= p_end) { + break; + } + cp = (int) duk_unicode_decode_xutf8_checked(thr, &p, p_start, p_end); + callback(udata, cp); + } +} + +DUK_EXTERNAL void duk_map_string(duk_context *ctx, duk_idx_t index, duk_map_char_function callback, void *udata) { + duk_hthread *thr = (duk_hthread *) ctx; + duk_hstring *h_input; + duk_bufwriter_ctx bw_alloc; + duk_bufwriter_ctx *bw; + const duk_uint8_t *p, *p_start, *p_end; + duk_codepoint_t cp; + + DUK_ASSERT_CTX_VALID(ctx); + + index = duk_normalize_index(ctx, index); + + h_input = duk_require_hstring(ctx, index); + DUK_ASSERT(h_input != NULL); + + bw = &bw_alloc; + DUK_BW_INIT_PUSHBUF(thr, bw, DUK_HSTRING_GET_BYTELEN(h_input)); /* reasonable output estimate */ + + p_start = (const duk_uint8_t *) DUK_HSTRING_GET_DATA(h_input); + p_end = p_start + DUK_HSTRING_GET_BYTELEN(h_input); + p = p_start; + + for (;;) { + /* XXX: could write output in chunks with fewer ensure calls, + * but relative benefit would be small here. + */ + + if (p >= p_end) { + break; + } + cp = (int) duk_unicode_decode_xutf8_checked(thr, &p, p_start, p_end); + cp = callback(udata, cp); + + DUK_BW_WRITE_ENSURE_XUTF8(thr, bw, cp); + } + + DUK_BW_COMPACT(thr, bw); + duk_to_string(ctx, -1); + duk_replace(ctx, index); +} + +DUK_EXTERNAL void duk_substring(duk_context *ctx, duk_idx_t index, duk_size_t start_offset, duk_size_t end_offset) { + duk_hthread *thr = (duk_hthread *) ctx; + duk_hstring *h; + duk_hstring *res; + duk_size_t start_byte_offset; + duk_size_t end_byte_offset; + + DUK_ASSERT_CTX_VALID(ctx); + + index = duk_require_normalize_index(ctx, index); + h = duk_require_hstring(ctx, index); + DUK_ASSERT(h != NULL); + + if (end_offset >= DUK_HSTRING_GET_CHARLEN(h)) { + end_offset = DUK_HSTRING_GET_CHARLEN(h); + } + if (start_offset > end_offset) { + start_offset = end_offset; + } + + DUK_ASSERT_DISABLE(start_offset >= 0); + DUK_ASSERT(start_offset <= end_offset && start_offset <= DUK_HSTRING_GET_CHARLEN(h)); + DUK_ASSERT_DISABLE(end_offset >= 0); + DUK_ASSERT(end_offset >= start_offset && end_offset <= DUK_HSTRING_GET_CHARLEN(h)); + + /* guaranteed by string limits */ + DUK_ASSERT(start_offset <= DUK_UINT32_MAX); + DUK_ASSERT(end_offset <= DUK_UINT32_MAX); + + start_byte_offset = (duk_size_t) duk_heap_strcache_offset_char2byte(thr, h, (duk_uint_fast32_t) start_offset); + end_byte_offset = (duk_size_t) duk_heap_strcache_offset_char2byte(thr, h, (duk_uint_fast32_t) end_offset); + + DUK_ASSERT(end_byte_offset >= start_byte_offset); + DUK_ASSERT(end_byte_offset - start_byte_offset <= DUK_UINT32_MAX); /* guaranteed by string limits */ + + /* no size check is necessary */ + res = duk_heap_string_intern_checked(thr, + DUK_HSTRING_GET_DATA(h) + start_byte_offset, + (duk_uint32_t) (end_byte_offset - start_byte_offset)); + + duk_push_hstring(ctx, res); + duk_replace(ctx, index); +} + +/* XXX: this is quite clunky. Add Unicode helpers to scan backwards and + * forwards with a callback to process codepoints? + */ +DUK_EXTERNAL void duk_trim(duk_context *ctx, duk_idx_t index) { + duk_hthread *thr = (duk_hthread *) ctx; + duk_hstring *h; + const duk_uint8_t *p, *p_start, *p_end, *p_tmp1, *p_tmp2; /* pointers for scanning */ + const duk_uint8_t *q_start, *q_end; /* start (incl) and end (excl) of trimmed part */ + duk_codepoint_t cp; + + DUK_ASSERT_CTX_VALID(ctx); + + index = duk_require_normalize_index(ctx, index); + h = duk_require_hstring(ctx, index); + DUK_ASSERT(h != NULL); + + p_start = DUK_HSTRING_GET_DATA(h); + p_end = p_start + DUK_HSTRING_GET_BYTELEN(h); + + p = p_start; + while (p < p_end) { + p_tmp1 = p; + cp = (duk_codepoint_t) duk_unicode_decode_xutf8_checked(thr, &p_tmp1, p_start, p_end); + if (!(duk_unicode_is_whitespace(cp) || duk_unicode_is_line_terminator(cp))) { + break; + } + p = p_tmp1; + } + q_start = p; + if (p == p_end) { + /* entire string is whitespace */ + q_end = p; + goto scan_done; + } + + p = p_end; + while (p > p_start) { + p_tmp1 = p; + while (p > p_start) { + p--; + if (((*p) & 0xc0) != 0x80) { + break; + } + } + p_tmp2 = p; + + cp = (duk_codepoint_t) duk_unicode_decode_xutf8_checked(thr, &p_tmp2, p_start, p_end); + if (!(duk_unicode_is_whitespace(cp) || duk_unicode_is_line_terminator(cp))) { + p = p_tmp1; + break; + } + } + q_end = p; + + scan_done: + /* This may happen when forward and backward scanning disagree + * (possible for non-extended-UTF-8 strings). + */ + if (q_end < q_start) { + q_end = q_start; + } + + DUK_ASSERT(q_start >= p_start && q_start <= p_end); + DUK_ASSERT(q_end >= p_start && q_end <= p_end); + DUK_ASSERT(q_end >= q_start); + + DUK_DDD(DUK_DDDPRINT("trim: p_start=%p, p_end=%p, q_start=%p, q_end=%p", + (const void *) p_start, (const void *) p_end, + (const void *) q_start, (const void *) q_end)); + + if (q_start == p_start && q_end == p_end) { + DUK_DDD(DUK_DDDPRINT("nothing was trimmed: avoid interning (hashing etc)")); + return; + } + + duk_push_lstring(ctx, (const char *) q_start, (duk_size_t) (q_end - q_start)); + duk_replace(ctx, index); +} + +DUK_EXTERNAL duk_codepoint_t duk_char_code_at(duk_context *ctx, duk_idx_t index, duk_size_t char_offset) { + duk_hthread *thr = (duk_hthread *) ctx; + duk_hstring *h; + duk_ucodepoint_t cp; + + DUK_ASSERT_CTX_VALID(ctx); + + h = duk_require_hstring(ctx, index); + DUK_ASSERT(h != NULL); + + DUK_ASSERT_DISABLE(char_offset >= 0); /* always true, arg is unsigned */ + if (char_offset >= DUK_HSTRING_GET_CHARLEN(h)) { + return 0; + } + + DUK_ASSERT(char_offset <= DUK_UINT_MAX); /* guaranteed by string limits */ + cp = duk_hstring_char_code_at_raw(thr, h, (duk_uint_t) char_offset); + return (duk_codepoint_t) cp; +} +#line 1 "duk_api_var.c" +/* + * Variable access + */ + +/* include removed: duk_internal.h */ + +DUK_EXTERNAL void duk_get_var(duk_context *ctx) { + duk_hthread *thr = (duk_hthread *) ctx; + duk_activation *act; + duk_hstring *h_varname; + duk_small_int_t throw_flag = 1; /* always throw ReferenceError for unresolvable */ + + DUK_ASSERT_CTX_VALID(ctx); + + h_varname = duk_require_hstring(ctx, -1); /* XXX: tostring? */ + DUK_ASSERT(h_varname != NULL); + + act = duk_hthread_get_current_activation(thr); + if (act) { + (void) duk_js_getvar_activation(thr, act, h_varname, throw_flag); /* -> [ ... varname val this ] */ + } else { + /* Outside any activation -> look up from global. */ + DUK_ASSERT(thr->builtins[DUK_BIDX_GLOBAL_ENV] != NULL); + (void) duk_js_getvar_envrec(thr, thr->builtins[DUK_BIDX_GLOBAL_ENV], h_varname, throw_flag); + } + + /* [ ... varname val this ] (because throw_flag == 1, always resolved) */ + + duk_pop(ctx); + duk_remove(ctx, -2); + + /* [ ... val ] */ + + /* Return value would be pointless: because throw_flag==1, we always + * throw if the identifier doesn't resolve. + */ + return; +} + +DUK_EXTERNAL void duk_put_var(duk_context *ctx) { + duk_hthread *thr = (duk_hthread *) ctx; + duk_activation *act; + duk_hstring *h_varname; + duk_tval *tv_val; + duk_small_int_t throw_flag; + + DUK_ASSERT_CTX_VALID(ctx); + + h_varname = duk_require_hstring(ctx, -2); /* XXX: tostring? */ + DUK_ASSERT(h_varname != NULL); + + tv_val = duk_require_tval(ctx, -1); + + throw_flag = duk_is_strict_call(ctx); + + act = duk_hthread_get_current_activation(thr); + if (act) { + duk_js_putvar_activation(thr, act, h_varname, tv_val, throw_flag); /* -> [ ... varname val this ] */ + } else { + /* Outside any activation -> put to global. */ + DUK_ASSERT(thr->builtins[DUK_BIDX_GLOBAL_ENV] != NULL); + duk_js_putvar_envrec(thr, thr->builtins[DUK_BIDX_GLOBAL_ENV], h_varname, tv_val, throw_flag); + } + + /* [ ... varname val ] */ + + duk_pop_2(ctx); + + /* [ ... ] */ + + return; +} + +DUK_EXTERNAL duk_bool_t duk_del_var(duk_context *ctx) { + DUK_ASSERT_CTX_VALID(ctx); + + DUK_ERROR_UNIMPLEMENTED_DEFMSG((duk_hthread *) ctx); + return 0; +} + +DUK_EXTERNAL duk_bool_t duk_has_var(duk_context *ctx) { + DUK_ASSERT_CTX_VALID(ctx); + + DUK_ERROR_UNIMPLEMENTED_DEFMSG((duk_hthread *) ctx); + return 0; +} +#line 1 "duk_bi_array.c" +/* + * Array built-ins + * + * Note that most Array built-ins are intentionally generic and work even + * when the 'this' binding is not an Array instance. To ensure this, + * Array algorithms do not assume "magical" Array behavior for the "length" + * property, for instance. + * + * XXX: the "Throw" flag should be set for (almost?) all [[Put]] and + * [[Delete]] operations, but it's currently false throughout. Go through + * all put/delete cases and check throw flag use. Need a new API primitive + * which allows throws flag to be specified. + * + * XXX: array lengths above 2G won't work reliably. There are many places + * where one needs a full signed 32-bit range ([-0xffffffff, 0xffffffff], + * i.e. -33- bits). Although array 'length' cannot be written to be outside + * the unsigned 32-bit range (E5.1 Section 15.4.5.1 throws a RangeError if so) + * some intermediate values may be above 0xffffffff and this may not be always + * correctly handled now (duk_uint32_t is not enough for all algorithms). + * + * For instance, push() can legitimately write entries beyond length 0xffffffff + * and cause a RangeError only at the end. To do this properly, the current + * push() implementation tracks the array index using a 'double' instead of a + * duk_uint32_t (which is somewhat awkward). See test-bi-array-push-maxlen.js. + * + * On using "put" vs. "def" prop + * ============================= + * + * Code below must be careful to use the appropriate primitive as it matters + * for compliance. When using "put" there may be inherited properties in + * Array.prototype which cause side effects when values are written. When + * using "define" there are no such side effects, and many test262 test cases + * check for this (for real world code, such side effects are very rare). + * Both "put" and "define" are used in the E5.1 specification; as a rule, + * "put" is used when modifying an existing array (or a non-array 'this' + * binding) and "define" for setting values into a fresh result array. + * + * Also note that Array instance 'length' should be writable, but not + * enumerable and definitely not configurable: even Duktape code internally + * assumes that an Array instance will always have a 'length' property. + * Preventing deletion of the property is critical. + */ + +/* include removed: duk_internal.h */ + +/* Perform an intermediate join when this many elements have been pushed + * on the value stack. + */ +#define DUK__ARRAY_MID_JOIN_LIMIT 4096 + +/* Shared entry code for many Array built-ins. Note that length is left + * on stack (it could be popped, but that's not necessary). + */ +DUK_LOCAL duk_uint32_t duk__push_this_obj_len_u32(duk_context *ctx) { + duk_uint32_t len; + + (void) duk_push_this_coercible_to_object(ctx); + duk_get_prop_stridx(ctx, -1, DUK_STRIDX_LENGTH); + len = duk_to_uint32(ctx, -1); + + /* -> [ ... ToObject(this) ToUint32(length) ] */ + return len; +} + +DUK_LOCAL duk_uint32_t duk__push_this_obj_len_u32_limited(duk_context *ctx) { + /* Range limited to [0, 0x7fffffff] range, i.e. range that can be + * represented with duk_int32_t. Use this when the method doesn't + * handle the full 32-bit unsigned range correctly. + */ + duk_uint32_t ret = duk__push_this_obj_len_u32(ctx); + if (DUK_UNLIKELY(ret >= 0x80000000UL)) { + DUK_ERROR_RANGE((duk_hthread *) ctx, DUK_STR_ARRAY_LENGTH_OVER_2G); + } + return ret; +} + +/* + * Constructor + */ + +DUK_INTERNAL duk_ret_t duk_bi_array_constructor(duk_context *ctx) { + duk_idx_t nargs; + duk_double_t d; + duk_uint32_t len; + duk_idx_t i; + + nargs = duk_get_top(ctx); + duk_push_array(ctx); + + if (nargs == 1 && duk_is_number(ctx, 0)) { + /* XXX: expensive check (also shared elsewhere - so add a shared internal API call?) */ + d = duk_get_number(ctx, 0); + len = duk_to_uint32(ctx, 0); + if (((duk_double_t) len) != d) { + return DUK_RET_RANGE_ERROR; + } + + /* XXX: if 'len' is low, may want to ensure array part is kept: + * the caller is likely to want a dense array. + */ + duk_push_u32(ctx, len); + duk_xdef_prop_stridx(ctx, -2, DUK_STRIDX_LENGTH, DUK_PROPDESC_FLAGS_W); /* [ ToUint32(len) array ToUint32(len) ] -> [ ToUint32(len) array ] */ + return 1; + } + + /* XXX: optimize by creating array into correct size directly, and + * operating on the array part directly; values can be memcpy()'d from + * value stack directly as long as refcounts are increased. + */ + for (i = 0; i < nargs; i++) { + duk_dup(ctx, i); + duk_xdef_prop_index_wec(ctx, -2, (duk_uarridx_t) i); + } + + duk_push_u32(ctx, (duk_uint32_t) nargs); + duk_xdef_prop_stridx(ctx, -2, DUK_STRIDX_LENGTH, DUK_PROPDESC_FLAGS_W); + return 1; +} + +/* + * isArray() + */ + +DUK_INTERNAL duk_ret_t duk_bi_array_constructor_is_array(duk_context *ctx) { + duk_hobject *h; + + h = duk_get_hobject_with_class(ctx, 0, DUK_HOBJECT_CLASS_ARRAY); + duk_push_boolean(ctx, (h != NULL)); + return 1; +} + +/* + * toString() + */ + +DUK_INTERNAL duk_ret_t duk_bi_array_prototype_to_string(duk_context *ctx) { + (void) duk_push_this_coercible_to_object(ctx); + duk_get_prop_stridx(ctx, -1, DUK_STRIDX_JOIN); + + /* [ ... this func ] */ + if (!duk_is_callable(ctx, -1)) { + /* Fall back to the initial (original) Object.toString(). We don't + * currently have pointers to the built-in functions, only the top + * level global objects (like "Array") so this is now done in a bit + * of a hacky manner. It would be cleaner to push the (original) + * function and use duk_call_method(). + */ + + /* XXX: 'this' will be ToObject() coerced twice, which is incorrect + * but should have no visible side effects. + */ + DUK_DDD(DUK_DDDPRINT("this.join is not callable, fall back to (original) Object.toString")); + duk_set_top(ctx, 0); + return duk_bi_object_prototype_to_string(ctx); /* has access to 'this' binding */ + } + + /* [ ... this func ] */ + + duk_insert(ctx, -2); + + /* [ ... func this ] */ + + DUK_DDD(DUK_DDDPRINT("calling: func=%!iT, this=%!iT", + (duk_tval *) duk_get_tval(ctx, -2), + (duk_tval *) duk_get_tval(ctx, -1))); + duk_call_method(ctx, 0); + + return 1; +} + +/* + * concat() + */ + +DUK_INTERNAL duk_ret_t duk_bi_array_prototype_concat(duk_context *ctx) { + duk_idx_t i, n; + duk_uarridx_t idx, idx_last; + duk_uarridx_t j, len; + duk_hobject *h; + + /* XXX: the insert here is a bit expensive if there are a lot of items. + * It could also be special cased in the outermost for loop quite easily + * (as the element is dup()'d anyway). + */ + + (void) duk_push_this_coercible_to_object(ctx); + duk_insert(ctx, 0); + n = duk_get_top(ctx); + duk_push_array(ctx); /* -> [ ToObject(this) item1 ... itemN arr ] */ + + /* NOTE: The Array special behaviors are NOT invoked by duk_xdef_prop_index() + * (which differs from the official algorithm). If no error is thrown, this + * doesn't matter as the length is updated at the end. However, if an error + * is thrown, the length will be unset. That shouldn't matter because the + * caller won't get a reference to the intermediate value. + */ + + idx = 0; + idx_last = 0; + for (i = 0; i < n; i++) { + DUK_ASSERT_TOP(ctx, n + 1); + + /* [ ToObject(this) item1 ... itemN arr ] */ + + duk_dup(ctx, i); + h = duk_get_hobject_with_class(ctx, -1, DUK_HOBJECT_CLASS_ARRAY); + if (!h) { + duk_xdef_prop_index_wec(ctx, -2, idx++); + idx_last = idx; + continue; + } + + /* [ ToObject(this) item1 ... itemN arr item(i) ] */ + + /* XXX: an array can have length higher than 32 bits; this is not handled + * correctly now. + */ + len = (duk_uarridx_t) duk_get_length(ctx, -1); + for (j = 0; j < len; j++) { + if (duk_get_prop_index(ctx, -1, j)) { + /* [ ToObject(this) item1 ... itemN arr item(i) item(i)[j] ] */ + duk_xdef_prop_index_wec(ctx, -3, idx++); + idx_last = idx; + } else { + idx++; + duk_pop(ctx); +#if defined(DUK_USE_NONSTD_ARRAY_CONCAT_TRAILER) + /* According to E5.1 Section 15.4.4.4 nonexistent trailing + * elements do not affect 'length' of the result. Test262 + * and other engines disagree, so update idx_last here too. + */ + idx_last = idx; +#else + /* Strict standard behavior, ignore trailing elements for + * result 'length'. + */ +#endif + } + } + duk_pop(ctx); + } + + /* The E5.1 Section 15.4.4.4 algorithm doesn't set the length explicitly + * in the end, but because we're operating with an internal value which + * is known to be an array, this should be equivalent. + */ + duk_push_uarridx(ctx, idx_last); + duk_xdef_prop_stridx(ctx, -2, DUK_STRIDX_LENGTH, DUK_PROPDESC_FLAGS_W); + + DUK_ASSERT_TOP(ctx, n + 1); + return 1; +} + +/* + * join(), toLocaleString() + * + * Note: checking valstack is necessary, but only in the per-element loop. + * + * Note: the trivial approach of pushing all the elements on the value stack + * and then calling duk_join() fails when the array contains a large number + * of elements. This problem can't be offloaded to duk_join() because the + * elements to join must be handled here and have special handling. Current + * approach is to do intermediate joins with very large number of elements. + * There is no fancy handling; the prefix gets re-joined multiple times. + */ + +DUK_INTERNAL duk_ret_t duk_bi_array_prototype_join_shared(duk_context *ctx) { + duk_uint32_t len, count; + duk_uint32_t idx; + duk_small_int_t to_locale_string = duk_get_current_magic(ctx); + duk_idx_t valstack_required; + + /* For join(), nargs is 1. For toLocaleString(), nargs is 0 and + * setting the top essentially pushes an undefined to the stack, + * thus defaulting to a comma separator. + */ + duk_set_top(ctx, 1); + if (duk_is_undefined(ctx, 0)) { + duk_pop(ctx); + duk_push_hstring_stridx(ctx, DUK_STRIDX_COMMA); + } else { + duk_to_string(ctx, 0); + } + + len = duk__push_this_obj_len_u32(ctx); + + /* [ sep ToObject(this) len ] */ + + DUK_DDD(DUK_DDDPRINT("sep=%!T, this=%!T, len=%lu", + (duk_tval *) duk_get_tval(ctx, 0), + (duk_tval *) duk_get_tval(ctx, 1), + (unsigned long) len)); + + /* The extra (+4) is tight. */ + valstack_required = (len >= DUK__ARRAY_MID_JOIN_LIMIT ? + DUK__ARRAY_MID_JOIN_LIMIT : len) + 4; + duk_require_stack(ctx, valstack_required); + + duk_dup(ctx, 0); + + /* [ sep ToObject(this) len sep ] */ + + count = 0; + idx = 0; + for (;;) { + if (count >= DUK__ARRAY_MID_JOIN_LIMIT || /* intermediate join to avoid valstack overflow */ + idx >= len) { /* end of loop (careful with len==0) */ + /* [ sep ToObject(this) len sep str0 ... str(count-1) ] */ + DUK_DDD(DUK_DDDPRINT("mid/final join, count=%ld, idx=%ld, len=%ld", + (long) count, (long) idx, (long) len)); + duk_join(ctx, (duk_idx_t) count); /* -> [ sep ToObject(this) len str ] */ + duk_dup(ctx, 0); /* -> [ sep ToObject(this) len str sep ] */ + duk_insert(ctx, -2); /* -> [ sep ToObject(this) len sep str ] */ + count = 1; + } + if (idx >= len) { + /* if true, the stack already contains the final result */ + break; + } + + duk_get_prop_index(ctx, 1, (duk_uarridx_t) idx); + if (duk_is_null_or_undefined(ctx, -1)) { + duk_pop(ctx); + duk_push_hstring_stridx(ctx, DUK_STRIDX_EMPTY_STRING); + } else { + if (to_locale_string) { + duk_to_object(ctx, -1); + duk_get_prop_stridx(ctx, -1, DUK_STRIDX_TO_LOCALE_STRING); + duk_insert(ctx, -2); /* -> [ ... toLocaleString ToObject(val) ] */ + duk_call_method(ctx, 0); + duk_to_string(ctx, -1); + } else { + duk_to_string(ctx, -1); + } + } + + count++; + idx++; + } + + /* [ sep ToObject(this) len sep result ] */ + + return 1; +} + +/* + * pop(), push() + */ + +DUK_INTERNAL duk_ret_t duk_bi_array_prototype_pop(duk_context *ctx) { + duk_uint32_t len; + duk_uint32_t idx; + + DUK_ASSERT_TOP(ctx, 0); + len = duk__push_this_obj_len_u32(ctx); + if (len == 0) { + duk_push_int(ctx, 0); + duk_put_prop_stridx(ctx, 0, DUK_STRIDX_LENGTH); + return 0; + } + idx = len - 1; + + duk_get_prop_index(ctx, 0, (duk_uarridx_t) idx); + duk_del_prop_index(ctx, 0, (duk_uarridx_t) idx); + duk_push_u32(ctx, idx); + duk_put_prop_stridx(ctx, 0, DUK_STRIDX_LENGTH); + return 1; +} + +DUK_INTERNAL duk_ret_t duk_bi_array_prototype_push(duk_context *ctx) { + /* Note: 'this' is not necessarily an Array object. The push() + * algorithm is supposed to work for other kinds of objects too, + * so the algorithm has e.g. an explicit update for the 'length' + * property which is normally "magical" in arrays. + */ + + duk_uint32_t len; + duk_idx_t i, n; + + n = duk_get_top(ctx); + len = duk__push_this_obj_len_u32(ctx); + + /* [ arg1 ... argN obj length ] */ + + /* Technically Array.prototype.push() can create an Array with length + * longer than 2^32-1, i.e. outside the 32-bit range. The final length + * is *not* wrapped to 32 bits in the specification. + * + * This implementation tracks length with a uint32 because it's much + * more practical. + * + * See: test-bi-array-push-maxlen.js. + */ + + if (len + (duk_uint32_t) n < len) { + DUK_D(DUK_DPRINT("Array.prototype.push() would go beyond 32-bit length, throw")); + return DUK_RET_RANGE_ERROR; + } + + for (i = 0; i < n; i++) { + duk_dup(ctx, i); + duk_put_prop_index(ctx, -3, len + i); + } + len += n; + + duk_push_u32(ctx, len); + duk_dup_top(ctx); + duk_put_prop_stridx(ctx, -4, DUK_STRIDX_LENGTH); + + /* [ arg1 ... argN obj length new_length ] */ + return 1; +} + +/* + * sort() + * + * Currently qsort with random pivot. This is now really, really slow, + * because there is no fast path for array parts. + * + * Signed indices are used because qsort() leaves and degenerate cases + * may use a negative offset. + */ + +DUK_LOCAL duk_small_int_t duk__array_sort_compare(duk_context *ctx, duk_int_t idx1, duk_int_t idx2) { + duk_bool_t have1, have2; + duk_bool_t undef1, undef2; + duk_small_int_t ret; + duk_idx_t idx_obj = 1; /* fixed offsets in valstack */ + duk_idx_t idx_fn = 0; + duk_hstring *h1, *h2; + + /* Fast exit if indices are identical. This is valid for a non-existent property, + * for an undefined value, and almost always for ToString() coerced comparison of + * arbitrary values (corner cases where this is not the case include e.g. a an + * object with varying ToString() coercion). + * + * The specification does not prohibit "caching" of values read from the array, so + * assuming equality for comparing an index with itself falls into the category of + * "caching". + * + * Also, compareFn may be inconsistent, so skipping a call to compareFn here may + * have an effect on the final result. The specification does not require any + * specific behavior for inconsistent compare functions, so again, this fast path + * is OK. + */ + + if (idx1 == idx2) { + DUK_DDD(DUK_DDDPRINT("duk__array_sort_compare: idx1=%ld, idx2=%ld -> indices identical, quick exit", + (long) idx1, (long) idx2)); + return 0; + } + + have1 = duk_get_prop_index(ctx, idx_obj, (duk_uarridx_t) idx1); + have2 = duk_get_prop_index(ctx, idx_obj, (duk_uarridx_t) idx2); + + DUK_DDD(DUK_DDDPRINT("duk__array_sort_compare: idx1=%ld, idx2=%ld, have1=%ld, have2=%ld, val1=%!T, val2=%!T", + (long) idx1, (long) idx2, (long) have1, (long) have2, + (duk_tval *) duk_get_tval(ctx, -2), (duk_tval *) duk_get_tval(ctx, -1))); + + if (have1) { + if (have2) { + ; + } else { + ret = -1; + goto pop_ret; + } + } else { + if (have2) { + ret = 1; + goto pop_ret; + } else { + ret = 0; + goto pop_ret; + } + } + + undef1 = duk_is_undefined(ctx, -2); + undef2 = duk_is_undefined(ctx, -1); + if (undef1) { + if (undef2) { + ret = 0; + goto pop_ret; + } else { + ret = 1; + goto pop_ret; + } + } else { + if (undef2) { + ret = -1; + goto pop_ret; + } else { + ; + } + } + + if (!duk_is_undefined(ctx, idx_fn)) { + duk_double_t d; + + /* no need to check callable; duk_call() will do that */ + duk_dup(ctx, idx_fn); /* -> [ ... x y fn ] */ + duk_insert(ctx, -3); /* -> [ ... fn x y ] */ + duk_call(ctx, 2); /* -> [ ... res ] */ + + /* The specification is a bit vague what to do if the return + * value is not a number. Other implementations seem to + * tolerate non-numbers but e.g. V8 won't apparently do a + * ToNumber(). + */ + + /* XXX: best behavior for real world compatibility? */ + + d = duk_to_number(ctx, -1); + if (d < 0.0) { + ret = -1; + } else if (d > 0.0) { + ret = 1; + } else { + ret = 0; + } + + duk_pop(ctx); + DUK_DDD(DUK_DDDPRINT("-> result %ld (from comparefn, after coercion)", (long) ret)); + return ret; + } + + /* string compare is the default (a bit oddly) */ + + h1 = duk_to_hstring(ctx, -2); + h2 = duk_to_hstring(ctx, -1); + DUK_ASSERT(h1 != NULL); + DUK_ASSERT(h2 != NULL); + + ret = duk_js_string_compare(h1, h2); /* retval is directly usable */ + goto pop_ret; + + pop_ret: + duk_pop_2(ctx); + DUK_DDD(DUK_DDDPRINT("-> result %ld", (long) ret)); + return ret; +} + +DUK_LOCAL void duk__array_sort_swap(duk_context *ctx, duk_int_t l, duk_int_t r) { + duk_bool_t have_l, have_r; + duk_idx_t idx_obj = 1; /* fixed offset in valstack */ + + if (l == r) { + return; + } + + /* swap elements; deal with non-existent elements correctly */ + have_l = duk_get_prop_index(ctx, idx_obj, (duk_uarridx_t) l); + have_r = duk_get_prop_index(ctx, idx_obj, (duk_uarridx_t) r); + + if (have_r) { + /* right exists, [[Put]] regardless whether or not left exists */ + duk_put_prop_index(ctx, idx_obj, (duk_uarridx_t) l); + } else { + duk_del_prop_index(ctx, idx_obj, (duk_uarridx_t) l); + duk_pop(ctx); + } + + if (have_l) { + duk_put_prop_index(ctx, idx_obj, (duk_uarridx_t) r); + } else { + duk_del_prop_index(ctx, idx_obj, (duk_uarridx_t) r); + duk_pop(ctx); + } +} + +#if defined(DUK_USE_DDDPRINT) +/* Debug print which visualizes the qsort partitioning process. */ +DUK_LOCAL void duk__debuglog_qsort_state(duk_context *ctx, duk_int_t lo, duk_int_t hi, duk_int_t pivot) { + char buf[4096]; + char *ptr = buf; + duk_int_t i, n; + n = (duk_int_t) duk_get_length(ctx, 1); + if (n > 4000) { + n = 4000; + } + *ptr++ = '['; + for (i = 0; i < n; i++) { + if (i == pivot) { + *ptr++ = '|'; + } else if (i == lo) { + *ptr++ = '<'; + } else if (i == hi) { + *ptr++ = '>'; + } else if (i >= lo && i <= hi) { + *ptr++ = '-'; + } else { + *ptr++ = ' '; + } + } + *ptr++ = ']'; + *ptr++ = '\0'; + + DUK_DDD(DUK_DDDPRINT("%s (lo=%ld, hi=%ld, pivot=%ld)", + (const char *) buf, (long) lo, (long) hi, (long) pivot)); +} +#endif + +DUK_LOCAL void duk__array_qsort(duk_context *ctx, duk_int_t lo, duk_int_t hi) { + duk_hthread *thr = (duk_hthread *) ctx; + duk_int_t p, l, r; + + /* The lo/hi indices may be crossed and hi < 0 is possible at entry. */ + + DUK_DDD(DUK_DDDPRINT("duk__array_qsort: lo=%ld, hi=%ld, obj=%!T", + (long) lo, (long) hi, (duk_tval *) duk_get_tval(ctx, 1))); + + DUK_ASSERT_TOP(ctx, 3); + + /* In some cases it may be that lo > hi, or hi < 0; these + * degenerate cases happen e.g. for empty arrays, and in + * recursion leaves. + */ + + /* trivial cases */ + if (hi - lo < 1) { + DUK_DDD(DUK_DDDPRINT("degenerate case, return immediately")); + return; + } + DUK_ASSERT(hi > lo); + DUK_ASSERT(hi - lo + 1 >= 2); + + /* randomized pivot selection */ + p = lo + (duk_util_tinyrandom_get_bits(thr, 30) % (hi - lo + 1)); /* rnd in [lo,hi] */ + DUK_ASSERT(p >= lo && p <= hi); + DUK_DDD(DUK_DDDPRINT("lo=%ld, hi=%ld, chose pivot p=%ld", + (long) lo, (long) hi, (long) p)); + + /* move pivot out of the way */ + duk__array_sort_swap(ctx, p, lo); + p = lo; + DUK_DDD(DUK_DDDPRINT("pivot moved out of the way: %!T", (duk_tval *) duk_get_tval(ctx, 1))); + + l = lo + 1; + r = hi; + for (;;) { + /* find elements to swap */ + for (;;) { + DUK_DDD(DUK_DDDPRINT("left scan: l=%ld, r=%ld, p=%ld", + (long) l, (long) r, (long) p)); + if (l >= hi) { + break; + } + if (duk__array_sort_compare(ctx, l, p) >= 0) { /* !(l < p) */ + break; + } + l++; + } + for (;;) { + DUK_DDD(DUK_DDDPRINT("right scan: l=%ld, r=%ld, p=%ld", + (long) l, (long) r, (long) p)); + if (r <= lo) { + break; + } + if (duk__array_sort_compare(ctx, p, r) >= 0) { /* !(p < r) */ + break; + } + r--; + } + if (l >= r) { + goto done; + } + DUK_ASSERT(l < r); + + DUK_DDD(DUK_DDDPRINT("swap %ld and %ld", (long) l, (long) r)); + + duk__array_sort_swap(ctx, l, r); + + DUK_DDD(DUK_DDDPRINT("after swap: %!T", (duk_tval *) duk_get_tval(ctx, 1))); + l++; + r--; + } + done: + /* Note that 'l' and 'r' may cross, i.e. r < l */ + DUK_ASSERT(l >= lo && l <= hi); + DUK_ASSERT(r >= lo && r <= hi); + + /* XXX: there's no explicit recursion bound here now. For the average + * qsort recursion depth O(log n) that's not really necessary: e.g. for + * 2**32 recursion depth would be about 32 which is OK. However, qsort + * worst case recursion depth is O(n) which may be a problem. + */ + + /* move pivot to its final place */ + DUK_DDD(DUK_DDDPRINT("before final pivot swap: %!T", (duk_tval *) duk_get_tval(ctx, 1))); + duk__array_sort_swap(ctx, lo, r); + +#if defined(DUK_USE_DDDPRINT) + duk__debuglog_qsort_state(ctx, lo, hi, r); +#endif + + DUK_DDD(DUK_DDDPRINT("recurse: pivot=%ld, obj=%!T", (long) r, (duk_tval *) duk_get_tval(ctx, 1))); + duk__array_qsort(ctx, lo, r - 1); + duk__array_qsort(ctx, r + 1, hi); +} + +DUK_INTERNAL duk_ret_t duk_bi_array_prototype_sort(duk_context *ctx) { + duk_uint32_t len; + + /* XXX: len >= 0x80000000 won't work below because a signed type + * is needed by qsort. + */ + len = duk__push_this_obj_len_u32_limited(ctx); + + /* stack[0] = compareFn + * stack[1] = ToObject(this) + * stack[2] = ToUint32(length) + */ + + if (len > 0) { + /* avoid degenerate cases, so that (len - 1) won't underflow */ + duk__array_qsort(ctx, (duk_int_t) 0, (duk_int_t) (len - 1)); + } + + DUK_ASSERT_TOP(ctx, 3); + duk_pop(ctx); + return 1; /* return ToObject(this) */ +} + +/* + * splice() + */ + +/* XXX: this compiles to over 500 bytes now, even without special handling + * for an array part. Uses signed ints so does not handle full array range correctly. + */ + +/* XXX: can shift() / unshift() use the same helper? + * shift() is (close to?) <--> splice(0, 1) + * unshift is (close to?) <--> splice(0, 0, [items])? + */ + +DUK_INTERNAL duk_ret_t duk_bi_array_prototype_splice(duk_context *ctx) { + duk_idx_t nargs; + duk_uint32_t len; + duk_bool_t have_delcount; + duk_int_t item_count; + duk_int_t act_start; + duk_int_t del_count; + duk_int_t i, n; + + DUK_UNREF(have_delcount); + + nargs = duk_get_top(ctx); + if (nargs < 2) { + duk_set_top(ctx, 2); + nargs = 2; + have_delcount = 0; + } else { + have_delcount = 1; + } + + /* XXX: len >= 0x80000000 won't work below because we need to be + * able to represent -len. + */ + len = duk__push_this_obj_len_u32_limited(ctx); + + act_start = duk_to_int_clamped(ctx, 0, -((duk_int_t) len), (duk_int_t) len); + if (act_start < 0) { + act_start = len + act_start; + } + DUK_ASSERT(act_start >= 0 && act_start <= (duk_int_t) len); + +#ifdef DUK_USE_NONSTD_ARRAY_SPLICE_DELCOUNT + if (have_delcount) { +#endif + del_count = duk_to_int_clamped(ctx, 1, 0, len - act_start); +#ifdef DUK_USE_NONSTD_ARRAY_SPLICE_DELCOUNT + } else { + /* E5.1 standard behavior when deleteCount is not given would be + * to treat it just like if 'undefined' was given, which coerces + * ultimately to 0. Real world behavior is to splice to the end + * of array, see test-bi-array-proto-splice-no-delcount.js. + */ + del_count = len - act_start; + } +#endif + + DUK_ASSERT(nargs >= 2); + item_count = (duk_int_t) (nargs - 2); + + DUK_ASSERT(del_count >= 0 && del_count <= (duk_int_t) len - act_start); + DUK_ASSERT(del_count + act_start <= (duk_int_t) len); + + /* For now, restrict result array into 32-bit length range. */ + if (((duk_double_t) len) - ((duk_double_t) del_count) + ((duk_double_t) item_count) > (duk_double_t) DUK_UINT32_MAX) { + DUK_D(DUK_DPRINT("Array.prototype.splice() would go beyond 32-bit length, throw")); + return DUK_RET_RANGE_ERROR; + } + + duk_push_array(ctx); + + /* stack[0] = start + * stack[1] = deleteCount + * stack[2...nargs-1] = items + * stack[nargs] = ToObject(this) -3 + * stack[nargs+1] = ToUint32(length) -2 + * stack[nargs+2] = result array -1 + */ + + DUK_ASSERT_TOP(ctx, nargs + 3); + + /* Step 9: copy elements-to-be-deleted into the result array */ + + for (i = 0; i < del_count; i++) { + if (duk_get_prop_index(ctx, -3, (duk_uarridx_t) (act_start + i))) { + duk_xdef_prop_index_wec(ctx, -2, i); /* throw flag irrelevant (false in std alg) */ + } else { + duk_pop(ctx); + } + } + duk_push_u32(ctx, (duk_uint32_t) del_count); + duk_xdef_prop_stridx(ctx, -2, DUK_STRIDX_LENGTH, DUK_PROPDESC_FLAGS_W); + + /* Steps 12 and 13: reorganize elements to make room for itemCount elements */ + + if (item_count < del_count) { + /* [ A B C D E F G H ] rel_index = 2, del_count 3, item count 1 + * -> [ A B F G H ] (conceptual intermediate step) + * -> [ A B . F G H ] (placeholder marked) + * [ A B C F G H ] (actual result at this point, C will be replaced) + */ + + DUK_ASSERT_TOP(ctx, nargs + 3); + + n = len - del_count; + for (i = act_start; i < n; i++) { + if (duk_get_prop_index(ctx, -3, (duk_uarridx_t) (i + del_count))) { + duk_put_prop_index(ctx, -4, (duk_uarridx_t) (i + item_count)); + } else { + duk_pop(ctx); + duk_del_prop_index(ctx, -3, (duk_uarridx_t) (i + item_count)); + } + } + + DUK_ASSERT_TOP(ctx, nargs + 3); + + /* loop iterator init and limit changed from standard algorithm */ + n = len - del_count + item_count; + for (i = len - 1; i >= n; i--) { + duk_del_prop_index(ctx, -3, (duk_uarridx_t) i); + } + + DUK_ASSERT_TOP(ctx, nargs + 3); + } else if (item_count > del_count) { + /* [ A B C D E F G H ] rel_index = 2, del_count 3, item count 4 + * -> [ A B F G H ] (conceptual intermediate step) + * -> [ A B . . . . F G H ] (placeholder marked) + * [ A B C D E F F G H ] (actual result at this point) + */ + + DUK_ASSERT_TOP(ctx, nargs + 3); + + /* loop iterator init and limit changed from standard algorithm */ + for (i = len - del_count - 1; i >= act_start; i--) { + if (duk_get_prop_index(ctx, -3, (duk_uarridx_t) (i + del_count))) { + duk_put_prop_index(ctx, -4, (duk_uarridx_t) (i + item_count)); + } else { + duk_pop(ctx); + duk_del_prop_index(ctx, -3, (duk_uarridx_t) (i + item_count)); + } + } + + DUK_ASSERT_TOP(ctx, nargs + 3); + } else { + /* [ A B C D E F G H ] rel_index = 2, del_count 3, item count 3 + * -> [ A B F G H ] (conceptual intermediate step) + * -> [ A B . . . F G H ] (placeholder marked) + * [ A B C D E F G H ] (actual result at this point) + */ + } + DUK_ASSERT_TOP(ctx, nargs + 3); + + /* Step 15: insert itemCount elements into the hole made above */ + + for (i = 0; i < item_count; i++) { + duk_dup(ctx, i + 2); /* args start at index 2 */ + duk_put_prop_index(ctx, -4, (duk_uarridx_t) (act_start + i)); + } + + /* Step 16: update length; note that the final length may be above 32 bit range + * (but we checked above that this isn't the case here) + */ + + duk_push_u32(ctx, len - del_count + item_count); + duk_put_prop_stridx(ctx, -4, DUK_STRIDX_LENGTH); + + /* result array is already at the top of stack */ + DUK_ASSERT_TOP(ctx, nargs + 3); + return 1; +} + +/* + * reverse() + */ + +DUK_INTERNAL duk_ret_t duk_bi_array_prototype_reverse(duk_context *ctx) { + duk_uint32_t len; + duk_uint32_t middle; + duk_uint32_t lower, upper; + duk_bool_t have_lower, have_upper; + + len = duk__push_this_obj_len_u32(ctx); + middle = len / 2; + + /* If len <= 1, middle will be 0 and for-loop bails out + * immediately (0 < 0 -> false). + */ + + for (lower = 0; lower < middle; lower++) { + DUK_ASSERT(len >= 2); + DUK_ASSERT_TOP(ctx, 2); + + DUK_ASSERT(len >= lower + 1); + upper = len - lower - 1; + + have_lower = duk_get_prop_index(ctx, -2, (duk_uarridx_t) lower); + have_upper = duk_get_prop_index(ctx, -3, (duk_uarridx_t) upper); + + /* [ ToObject(this) ToUint32(length) lowerValue upperValue ] */ + + if (have_upper) { + duk_put_prop_index(ctx, -4, (duk_uarridx_t) lower); + } else { + duk_del_prop_index(ctx, -4, (duk_uarridx_t) lower); + duk_pop(ctx); + } + + if (have_lower) { + duk_put_prop_index(ctx, -3, (duk_uarridx_t) upper); + } else { + duk_del_prop_index(ctx, -3, (duk_uarridx_t) upper); + duk_pop(ctx); + } + + DUK_ASSERT_TOP(ctx, 2); + } + + DUK_ASSERT_TOP(ctx, 2); + duk_pop(ctx); /* -> [ ToObject(this) ] */ + return 1; +} + +/* + * slice() + */ + +DUK_INTERNAL duk_ret_t duk_bi_array_prototype_slice(duk_context *ctx) { + duk_uint32_t len; + duk_int_t start, end; + duk_int_t i; + duk_uarridx_t idx; + duk_uint32_t res_length = 0; + + /* XXX: len >= 0x80000000 won't work below because we need to be + * able to represent -len. + */ + len = duk__push_this_obj_len_u32_limited(ctx); + duk_push_array(ctx); + + /* stack[0] = start + * stack[1] = end + * stack[2] = ToObject(this) + * stack[3] = ToUint32(length) + * stack[4] = result array + */ + + start = duk_to_int_clamped(ctx, 0, -((duk_int_t) len), (duk_int_t) len); + if (start < 0) { + start = len + start; + } + /* XXX: could duk_is_undefined() provide defaulting undefined to 'len' + * (the upper limit)? + */ + if (duk_is_undefined(ctx, 1)) { + end = len; + } else { + end = duk_to_int_clamped(ctx, 1, -((duk_int_t) len), (duk_int_t) len); + if (end < 0) { + end = len + end; + } + } + DUK_ASSERT(start >= 0 && (duk_uint32_t) start <= len); + DUK_ASSERT(end >= 0 && (duk_uint32_t) end <= len); + + idx = 0; + for (i = start; i < end; i++) { + DUK_ASSERT_TOP(ctx, 5); + if (duk_get_prop_index(ctx, 2, (duk_uarridx_t) i)) { + duk_xdef_prop_index_wec(ctx, 4, idx); + res_length = idx + 1; + } else { + duk_pop(ctx); + } + idx++; + DUK_ASSERT_TOP(ctx, 5); + } + + duk_push_u32(ctx, res_length); + duk_xdef_prop_stridx(ctx, 4, DUK_STRIDX_LENGTH, DUK_PROPDESC_FLAGS_W); + + DUK_ASSERT_TOP(ctx, 5); + return 1; +} + +/* + * shift() + */ + +DUK_INTERNAL duk_ret_t duk_bi_array_prototype_shift(duk_context *ctx) { + duk_uint32_t len; + duk_uint32_t i; + + len = duk__push_this_obj_len_u32(ctx); + if (len == 0) { + duk_push_int(ctx, 0); + duk_put_prop_stridx(ctx, 0, DUK_STRIDX_LENGTH); + return 0; + } + + duk_get_prop_index(ctx, 0, 0); + + /* stack[0] = object (this) + * stack[1] = ToUint32(length) + * stack[2] = elem at index 0 (retval) + */ + + for (i = 1; i < len; i++) { + DUK_ASSERT_TOP(ctx, 3); + if (duk_get_prop_index(ctx, 0, (duk_uarridx_t) i)) { + /* fromPresent = true */ + duk_put_prop_index(ctx, 0, (duk_uarridx_t) (i - 1)); + } else { + /* fromPresent = false */ + duk_del_prop_index(ctx, 0, (duk_uarridx_t) (i - 1)); + duk_pop(ctx); + } + } + duk_del_prop_index(ctx, 0, (duk_uarridx_t) (len - 1)); + + duk_push_u32(ctx, (duk_uint32_t) (len - 1)); + duk_put_prop_stridx(ctx, 0, DUK_STRIDX_LENGTH); + + DUK_ASSERT_TOP(ctx, 3); + return 1; +} + +/* + * unshift() + */ + +DUK_INTERNAL duk_ret_t duk_bi_array_prototype_unshift(duk_context *ctx) { + duk_idx_t nargs; + duk_uint32_t len; + duk_uint32_t i; + + nargs = duk_get_top(ctx); + len = duk__push_this_obj_len_u32(ctx); + + /* stack[0...nargs-1] = unshift args (vararg) + * stack[nargs] = ToObject(this) + * stack[nargs+1] = ToUint32(length) + */ + + DUK_ASSERT_TOP(ctx, nargs + 2); + + /* Note: unshift() may operate on indices above unsigned 32-bit range + * and the final length may be >= 2**32. However, we restrict the + * final result to 32-bit range for practicality. + */ + + if (len + (duk_uint32_t) nargs < len) { + DUK_D(DUK_DPRINT("Array.prototype.unshift() would go beyond 32-bit length, throw")); + return DUK_RET_RANGE_ERROR; + } + + i = len; + while (i > 0) { + DUK_ASSERT_TOP(ctx, nargs + 2); + i--; + /* k+argCount-1; note that may be above 32-bit range */ + + if (duk_get_prop_index(ctx, -2, (duk_uarridx_t) i)) { + /* fromPresent = true */ + /* [ ... ToObject(this) ToUint32(length) val ] */ + duk_put_prop_index(ctx, -3, (duk_uarridx_t) (i + nargs)); /* -> [ ... ToObject(this) ToUint32(length) ] */ + } else { + /* fromPresent = false */ + /* [ ... ToObject(this) ToUint32(length) val ] */ + duk_pop(ctx); + duk_del_prop_index(ctx, -2, (duk_uarridx_t) (i + nargs)); /* -> [ ... ToObject(this) ToUint32(length) ] */ + } + DUK_ASSERT_TOP(ctx, nargs + 2); + } + + for (i = 0; i < (duk_uint32_t) nargs; i++) { + DUK_ASSERT_TOP(ctx, nargs + 2); + duk_dup(ctx, i); /* -> [ ... ToObject(this) ToUint32(length) arg[i] ] */ + duk_put_prop_index(ctx, -3, (duk_uarridx_t) i); + DUK_ASSERT_TOP(ctx, nargs + 2); + } + + DUK_ASSERT_TOP(ctx, nargs + 2); + duk_push_u32(ctx, len + nargs); + duk_dup_top(ctx); /* -> [ ... ToObject(this) ToUint32(length) final_len final_len ] */ + duk_put_prop_stridx(ctx, -4, DUK_STRIDX_LENGTH); + return 1; +} + +/* + * indexOf(), lastIndexOf() + */ + +DUK_INTERNAL duk_ret_t duk_bi_array_prototype_indexof_shared(duk_context *ctx) { + duk_idx_t nargs; + duk_int_t i, len; + duk_int_t from_index; + duk_small_int_t idx_step = duk_get_current_magic(ctx); /* idx_step is +1 for indexOf, -1 for lastIndexOf */ + + /* lastIndexOf() needs to be a vararg function because we must distinguish + * between an undefined fromIndex and a "not given" fromIndex; indexOf() is + * made vararg for symmetry although it doesn't strictly need to be. + */ + + nargs = duk_get_top(ctx); + duk_set_top(ctx, 2); + + /* XXX: must be able to represent -len */ + len = (duk_int_t) duk__push_this_obj_len_u32_limited(ctx); + if (len == 0) { + goto not_found; + } + + /* Index clamping is a bit tricky, we must ensure that we'll only iterate + * through elements that exist and that the specific requirements from E5.1 + * Sections 15.4.4.14 and 15.4.4.15 are fulfilled; especially: + * + * - indexOf: clamp to [-len,len], negative handling -> [0,len], + * if clamped result is len, for-loop bails out immediately + * + * - lastIndexOf: clamp to [-len-1, len-1], negative handling -> [-1, len-1], + * if clamped result is -1, for-loop bails out immediately + * + * If fromIndex is not given, ToInteger(undefined) = 0, which is correct + * for indexOf() but incorrect for lastIndexOf(). Hence special handling, + * and why lastIndexOf() needs to be a vararg function. + */ + + if (nargs >= 2) { + /* indexOf: clamp fromIndex to [-len, len] + * (if fromIndex == len, for-loop terminates directly) + * + * lastIndexOf: clamp fromIndex to [-len - 1, len - 1] + * (if clamped to -len-1 -> fromIndex becomes -1, terminates for-loop directly) + */ + from_index = duk_to_int_clamped(ctx, + 1, + (idx_step > 0 ? -len : -len - 1), + (idx_step > 0 ? len : len - 1)); + if (from_index < 0) { + /* for lastIndexOf, result may be -1 (mark immediate termination) */ + from_index = len + from_index; + } + } else { + /* for indexOf, ToInteger(undefined) would be 0, i.e. correct, but + * handle both indexOf and lastIndexOf specially here. + */ + if (idx_step > 0) { + from_index = 0; + } else { + from_index = len - 1; + } + } + + /* stack[0] = searchElement + * stack[1] = fromIndex + * stack[2] = object + * stack[3] = length (not needed, but not popped above) + */ + + for (i = from_index; i >= 0 && i < len; i += idx_step) { + DUK_ASSERT_TOP(ctx, 4); + + if (duk_get_prop_index(ctx, 2, (duk_uarridx_t) i)) { + DUK_ASSERT_TOP(ctx, 5); + if (duk_strict_equals(ctx, 0, 4)) { + duk_push_int(ctx, i); + return 1; + } + } + + duk_pop(ctx); + } + + not_found: + duk_push_int(ctx, -1); + return 1; +} + +/* + * every(), some(), forEach(), map(), filter() + */ + +#define DUK__ITER_EVERY 0 +#define DUK__ITER_SOME 1 +#define DUK__ITER_FOREACH 2 +#define DUK__ITER_MAP 3 +#define DUK__ITER_FILTER 4 + +/* XXX: This helper is a bit awkward because the handling for the different iteration + * callers is quite different. This now compiles to a bit less than 500 bytes, so with + * 5 callers the net result is about 100 bytes / caller. + */ + +DUK_INTERNAL duk_ret_t duk_bi_array_prototype_iter_shared(duk_context *ctx) { + duk_uint32_t len; + duk_uint32_t i; + duk_uarridx_t k; + duk_bool_t bval; + duk_small_int_t iter_type = duk_get_current_magic(ctx); + duk_uint32_t res_length = 0; + + /* each call this helper serves has nargs==2 */ + DUK_ASSERT_TOP(ctx, 2); + + len = duk__push_this_obj_len_u32(ctx); + duk_require_callable(ctx, 0); + /* if thisArg not supplied, behave as if undefined was supplied */ + + if (iter_type == DUK__ITER_MAP || iter_type == DUK__ITER_FILTER) { + duk_push_array(ctx); + } else { + duk_push_undefined(ctx); + } + + /* stack[0] = callback + * stack[1] = thisArg + * stack[2] = object + * stack[3] = ToUint32(length) (unused, but avoid unnecessary pop) + * stack[4] = result array (or undefined) + */ + + k = 0; /* result index for filter() */ + for (i = 0; i < len; i++) { + DUK_ASSERT_TOP(ctx, 5); + + if (!duk_get_prop_index(ctx, 2, (duk_uarridx_t) i)) { +#if defined(DUK_USE_NONSTD_ARRAY_MAP_TRAILER) + /* Real world behavior for map(): trailing non-existent + * elements don't invoke the user callback, but are still + * counted towards result 'length'. + */ + if (iter_type == DUK__ITER_MAP) { + res_length = i + 1; + } +#else + /* Standard behavior for map(): trailing non-existent + * elements don't invoke the user callback and are not + * counted towards result 'length'. + */ +#endif + duk_pop(ctx); + continue; + } + + /* The original value needs to be preserved for filter(), hence + * this funny order. We can't re-get the value because of side + * effects. + */ + + duk_dup(ctx, 0); + duk_dup(ctx, 1); + duk_dup(ctx, -3); + duk_push_u32(ctx, i); + duk_dup(ctx, 2); /* [ ... val callback thisArg val i obj ] */ + duk_call_method(ctx, 3); /* -> [ ... val retval ] */ + + switch (iter_type) { + case DUK__ITER_EVERY: + bval = duk_to_boolean(ctx, -1); + if (!bval) { + /* stack top contains 'false' */ + return 1; + } + break; + case DUK__ITER_SOME: + bval = duk_to_boolean(ctx, -1); + if (bval) { + /* stack top contains 'true' */ + return 1; + } + break; + case DUK__ITER_FOREACH: + /* nop */ + break; + case DUK__ITER_MAP: + duk_dup(ctx, -1); + duk_xdef_prop_index_wec(ctx, 4, (duk_uarridx_t) i); /* retval to result[i] */ + res_length = i + 1; + break; + case DUK__ITER_FILTER: + bval = duk_to_boolean(ctx, -1); + if (bval) { + duk_dup(ctx, -2); /* orig value */ + duk_xdef_prop_index_wec(ctx, 4, (duk_uarridx_t) k); + k++; + res_length = k; + } + break; + default: + DUK_UNREACHABLE(); + break; + } + duk_pop_2(ctx); + + DUK_ASSERT_TOP(ctx, 5); + } + + switch (iter_type) { + case DUK__ITER_EVERY: + duk_push_true(ctx); + break; + case DUK__ITER_SOME: + duk_push_false(ctx); + break; + case DUK__ITER_FOREACH: + duk_push_undefined(ctx); + break; + case DUK__ITER_MAP: + case DUK__ITER_FILTER: + DUK_ASSERT_TOP(ctx, 5); + DUK_ASSERT(duk_is_array(ctx, -1)); /* topmost element is the result array already */ + duk_push_u32(ctx, res_length); + duk_xdef_prop_stridx(ctx, -2, DUK_STRIDX_LENGTH, DUK_PROPDESC_FLAGS_W); + break; + default: + DUK_UNREACHABLE(); + break; + } + + return 1; +} + +/* + * reduce(), reduceRight() + */ + +DUK_INTERNAL duk_ret_t duk_bi_array_prototype_reduce_shared(duk_context *ctx) { + duk_idx_t nargs; + duk_bool_t have_acc; + duk_uint32_t i, len; + duk_small_int_t idx_step = duk_get_current_magic(ctx); /* idx_step is +1 for reduce, -1 for reduceRight */ + + /* We're a varargs function because we need to detect whether + * initialValue was given or not. + */ + nargs = duk_get_top(ctx); + DUK_DDD(DUK_DDDPRINT("nargs=%ld", (long) nargs)); + + duk_set_top(ctx, 2); + len = duk__push_this_obj_len_u32(ctx); + if (!duk_is_callable(ctx, 0)) { + goto type_error; + } + + /* stack[0] = callback fn + * stack[1] = initialValue + * stack[2] = object (coerced this) + * stack[3] = length (not needed, but not popped above) + * stack[4] = accumulator + */ + + have_acc = 0; + if (nargs >= 2) { + duk_dup(ctx, 1); + have_acc = 1; + } + DUK_DDD(DUK_DDDPRINT("have_acc=%ld, acc=%!T", + (long) have_acc, (duk_tval *) duk_get_tval(ctx, 3))); + + /* For len == 0, i is initialized to len - 1 which underflows. + * The condition (i < len) will then exit the for-loop on the + * first round which is correct. Similarly, loop termination + * happens by i underflowing. + */ + + for (i = (idx_step >= 0 ? 0 : len - 1); + i < len; /* i >= 0 would always be true */ + i += idx_step) { + DUK_DDD(DUK_DDDPRINT("i=%ld, len=%ld, have_acc=%ld, top=%ld, acc=%!T", + (long) i, (long) len, (long) have_acc, + (long) duk_get_top(ctx), + (duk_tval *) duk_get_tval(ctx, 4))); + + DUK_ASSERT((have_acc && duk_get_top(ctx) == 5) || + (!have_acc && duk_get_top(ctx) == 4)); + + if (!duk_has_prop_index(ctx, 2, (duk_uarridx_t) i)) { + continue; + } + + if (!have_acc) { + DUK_ASSERT_TOP(ctx, 4); + duk_get_prop_index(ctx, 2, (duk_uarridx_t) i); + have_acc = 1; + DUK_ASSERT_TOP(ctx, 5); + } else { + DUK_ASSERT_TOP(ctx, 5); + duk_dup(ctx, 0); + duk_dup(ctx, 4); + duk_get_prop_index(ctx, 2, (duk_uarridx_t) i); + duk_push_u32(ctx, i); + duk_dup(ctx, 2); + DUK_DDD(DUK_DDDPRINT("calling reduce function: func=%!T, prev=%!T, curr=%!T, idx=%!T, obj=%!T", + (duk_tval *) duk_get_tval(ctx, -5), (duk_tval *) duk_get_tval(ctx, -4), + (duk_tval *) duk_get_tval(ctx, -3), (duk_tval *) duk_get_tval(ctx, -2), + (duk_tval *) duk_get_tval(ctx, -1))); + duk_call(ctx, 4); + DUK_DDD(DUK_DDDPRINT("-> result: %!T", (duk_tval *) duk_get_tval(ctx, -1))); + duk_replace(ctx, 4); + DUK_ASSERT_TOP(ctx, 5); + } + } + + if (!have_acc) { + goto type_error; + } + + DUK_ASSERT_TOP(ctx, 5); + return 1; + + type_error: + return DUK_RET_TYPE_ERROR; +} + +#undef DUK__ARRAY_MID_JOIN_LIMIT + +#undef DUK__ITER_EVERY +#undef DUK__ITER_SOME +#undef DUK__ITER_FOREACH +#undef DUK__ITER_MAP +#undef DUK__ITER_FILTER +#line 1 "duk_bi_boolean.c" +/* + * Boolean built-ins + */ + +/* include removed: duk_internal.h */ + +/* Shared helper to provide toString() and valueOf(). Checks 'this', gets + * the primitive value to stack top, and optionally coerces with ToString(). + */ +DUK_INTERNAL duk_ret_t duk_bi_boolean_prototype_tostring_shared(duk_context *ctx) { + duk_tval *tv; + duk_hobject *h; + duk_small_int_t coerce_tostring = duk_get_current_magic(ctx); + + /* XXX: there is room to use a shared helper here, many built-ins + * check the 'this' type, and if it's an object, check its class, + * then get its internal value, etc. + */ + + duk_push_this(ctx); + tv = duk_get_tval(ctx, -1); + DUK_ASSERT(tv != NULL); + + if (DUK_TVAL_IS_BOOLEAN(tv)) { + goto type_ok; + } else if (DUK_TVAL_IS_OBJECT(tv)) { + h = DUK_TVAL_GET_OBJECT(tv); + DUK_ASSERT(h != NULL); + + if (DUK_HOBJECT_GET_CLASS_NUMBER(h) == DUK_HOBJECT_CLASS_BOOLEAN) { + duk_get_prop_stridx(ctx, -1, DUK_STRIDX_INT_VALUE); + DUK_ASSERT(duk_is_boolean(ctx, -1)); + goto type_ok; + } + } + + return DUK_RET_TYPE_ERROR; + + type_ok: + if (coerce_tostring) { + duk_to_string(ctx, -1); + } + return 1; +} + +DUK_INTERNAL duk_ret_t duk_bi_boolean_constructor(duk_context *ctx) { + duk_hthread *thr = (duk_hthread *) ctx; + duk_hobject *h_this; + + DUK_UNREF(thr); + + duk_to_boolean(ctx, 0); + + if (duk_is_constructor_call(ctx)) { + /* XXX: helper; rely on Boolean.prototype as being non-writable, non-configurable */ + duk_push_this(ctx); + h_this = duk_get_hobject(ctx, -1); + DUK_ASSERT(h_this != NULL); + DUK_ASSERT(DUK_HOBJECT_GET_PROTOTYPE(thr->heap, h_this) == thr->builtins[DUK_BIDX_BOOLEAN_PROTOTYPE]); + + DUK_HOBJECT_SET_CLASS_NUMBER(h_this, DUK_HOBJECT_CLASS_BOOLEAN); + + duk_dup(ctx, 0); /* -> [ val obj val ] */ + duk_xdef_prop_stridx(ctx, -2, DUK_STRIDX_INT_VALUE, DUK_PROPDESC_FLAGS_NONE); /* XXX: proper flags? */ + } /* unbalanced stack */ + + return 1; +} +#line 1 "duk_bi_buffer.c" +/* + * Duktape.Buffer, Node.js Buffer, and Khronos/ES6 TypedArray built-ins + */ + +/* include removed: duk_internal.h */ + +/* + * Misc helpers + */ + +#if defined(DUK_USE_BUFFEROBJECT_SUPPORT) +/* Map DUK_HBUFFEROBJECT_ELEM_xxx to duk_hobject class number. + * Sync with duk_hbufferobject.h and duk_hobject.h. + */ +static const duk_uint8_t duk__buffer_class_from_elemtype[9] = { + DUK_HOBJECT_CLASS_UINT8ARRAY, + DUK_HOBJECT_CLASS_UINT8CLAMPEDARRAY, + DUK_HOBJECT_CLASS_INT8ARRAY, + DUK_HOBJECT_CLASS_UINT16ARRAY, + DUK_HOBJECT_CLASS_INT16ARRAY, + DUK_HOBJECT_CLASS_UINT32ARRAY, + DUK_HOBJECT_CLASS_INT32ARRAY, + DUK_HOBJECT_CLASS_FLOAT32ARRAY, + DUK_HOBJECT_CLASS_FLOAT64ARRAY +}; +#endif /* DUK_USE_BUFFEROBJECT_SUPPORT */ + +#if defined(DUK_USE_BUFFEROBJECT_SUPPORT) +/* Map DUK_HBUFFEROBJECT_ELEM_xxx to prototype object built-in index. + * Sync with duk_hbufferobject.h. + */ +static const duk_uint8_t duk__buffer_proto_from_elemtype[9] = { + DUK_BIDX_UINT8ARRAY_PROTOTYPE, + DUK_BIDX_UINT8CLAMPEDARRAY_PROTOTYPE, + DUK_BIDX_INT8ARRAY_PROTOTYPE, + DUK_BIDX_UINT16ARRAY_PROTOTYPE, + DUK_BIDX_INT16ARRAY_PROTOTYPE, + DUK_BIDX_UINT32ARRAY_PROTOTYPE, + DUK_BIDX_INT32ARRAY_PROTOTYPE, + DUK_BIDX_FLOAT32ARRAY_PROTOTYPE, + DUK_BIDX_FLOAT64ARRAY_PROTOTYPE +}; +#endif /* DUK_USE_BUFFEROBJECT_SUPPORT */ + +#if defined(DUK_USE_BUFFEROBJECT_SUPPORT) +/* Map DUK__FLX_xxx to byte size. + */ +static const duk_uint8_t duk__buffer_nbytes_from_fldtype[6] = { + 1, /* DUK__FLD_8BIT */ + 2, /* DUK__FLD_16BIT */ + 4, /* DUK__FLD_32BIT */ + 4, /* DUK__FLD_FLOAT */ + 8, /* DUK__FLD_DOUBLE */ + 0 /* DUK__FLD_VARINT; not relevant here */ +}; +#endif /* DUK_USE_BUFFEROBJECT_SUPPORT */ + +#if defined(DUK_USE_BUFFEROBJECT_SUPPORT) +/* Bitfield for each DUK_HBUFFEROBJECT_ELEM_xxx indicating which element types + * are compatible with a blind byte copy for the TypedArray set() method (also + * used for TypedArray constructor). Array index is target buffer elem type, + * bitfield indicates compatible source types. The types must have same byte + * size and they must be coercion compatible. + */ +static duk_uint16_t duk__buffer_elemtype_copy_compatible[9] = { + /* xxx -> DUK_HBUFFEROBJECT_ELEM_UINT8 */ + (1U << DUK_HBUFFEROBJECT_ELEM_UINT8) | + (1U << DUK_HBUFFEROBJECT_ELEM_UINT8CLAMPED) | + (1U << DUK_HBUFFEROBJECT_ELEM_INT8), + + /* xxx -> DUK_HBUFFEROBJECT_ELEM_UINT8CLAMPED + * Note: INT8 is -not- copy compatible, e.g. -1 would coerce to 0x00. + */ + (1U << DUK_HBUFFEROBJECT_ELEM_UINT8) | + (1U << DUK_HBUFFEROBJECT_ELEM_UINT8CLAMPED), + + /* xxx -> DUK_HBUFFEROBJECT_ELEM_INT8 */ + (1U << DUK_HBUFFEROBJECT_ELEM_UINT8) | + (1U << DUK_HBUFFEROBJECT_ELEM_UINT8CLAMPED) | + (1U << DUK_HBUFFEROBJECT_ELEM_INT8), + + /* xxx -> DUK_HBUFFEROBJECT_ELEM_UINT16 */ + (1U << DUK_HBUFFEROBJECT_ELEM_UINT16) | + (1U << DUK_HBUFFEROBJECT_ELEM_INT16), + + /* xxx -> DUK_HBUFFEROBJECT_ELEM_INT16 */ + (1U << DUK_HBUFFEROBJECT_ELEM_UINT16) | + (1U << DUK_HBUFFEROBJECT_ELEM_INT16), + + /* xxx -> DUK_HBUFFEROBJECT_ELEM_UINT32 */ + (1U << DUK_HBUFFEROBJECT_ELEM_UINT32) | + (1U << DUK_HBUFFEROBJECT_ELEM_INT32), + + /* xxx -> DUK_HBUFFEROBJECT_ELEM_INT32 */ + (1U << DUK_HBUFFEROBJECT_ELEM_UINT32) | + (1U << DUK_HBUFFEROBJECT_ELEM_INT32), + + /* xxx -> DUK_HBUFFEROBJECT_ELEM_FLOAT32 */ + (1U << DUK_HBUFFEROBJECT_ELEM_FLOAT32), + + /* xxx -> DUK_HBUFFEROBJECT_ELEM_FLOAT64 */ + (1U << DUK_HBUFFEROBJECT_ELEM_FLOAT64) +}; +#endif /* DUK_USE_BUFFEROBJECT_SUPPORT */ + +#if defined(DUK_USE_BUFFEROBJECT_SUPPORT) +/* Shared helper. */ +DUK_LOCAL duk_hbufferobject *duk__getrequire_bufobj_this(duk_context *ctx, duk_bool_t throw_flag) { + duk_hthread *thr; + duk_tval *tv; + duk_hbufferobject *h_this; + + DUK_ASSERT(ctx != NULL); + thr = (duk_hthread *) ctx; + + tv = duk_get_borrowed_this_tval(ctx); + DUK_ASSERT(tv != NULL); + if (DUK_TVAL_IS_OBJECT(tv)) { + h_this = (duk_hbufferobject *) DUK_TVAL_GET_OBJECT(tv); + DUK_ASSERT(h_this != NULL); + if (DUK_HOBJECT_IS_BUFFEROBJECT((duk_hobject *) h_this)) { + DUK_ASSERT_HBUFFEROBJECT_VALID(h_this); + return h_this; + } + } + + if (throw_flag) { + DUK_ERROR_TYPE(thr, DUK_STR_NOT_BUFFER); + } + return NULL; +} +#endif /* DUK_USE_BUFFEROBJECT_SUPPORT */ + +#if defined(DUK_USE_BUFFEROBJECT_SUPPORT) +/* Check that 'this' is a duk_hbufferobject and return a pointer to it. */ +DUK_LOCAL duk_hbufferobject *duk__get_bufobj_this(duk_context *ctx) { + return duk__getrequire_bufobj_this(ctx, 0); +} +#endif /* DUK_USE_BUFFEROBJECT_SUPPORT */ + +#if defined(DUK_USE_BUFFEROBJECT_SUPPORT) +/* Check that 'this' is a duk_hbufferobject and return a pointer to it + * (NULL if not). + */ +DUK_LOCAL duk_hbufferobject *duk__require_bufobj_this(duk_context *ctx) { + return duk__getrequire_bufobj_this(ctx, 1); +} +#endif /* DUK_USE_BUFFEROBJECT_SUPPORT */ + +#if defined(DUK_USE_BUFFEROBJECT_SUPPORT) +/* Check that value is a duk_hbufferobject and return a pointer to it. */ +DUK_LOCAL duk_hbufferobject *duk__require_bufobj_value(duk_context *ctx, duk_idx_t index) { + duk_hthread *thr; + duk_tval *tv; + duk_hbufferobject *h_obj; + + thr = (duk_hthread *) ctx; + + /* Don't accept relative indices now. */ + DUK_ASSERT(index >= 0); + + tv = duk_require_tval(ctx, index); + DUK_ASSERT(tv != NULL); + if (DUK_TVAL_IS_OBJECT(tv)) { + h_obj = (duk_hbufferobject *) DUK_TVAL_GET_OBJECT(tv); + DUK_ASSERT(h_obj != NULL); + if (DUK_HOBJECT_IS_BUFFEROBJECT((duk_hobject *) h_obj)) { + DUK_ASSERT_HBUFFEROBJECT_VALID(h_obj); + return h_obj; + } + } + + DUK_ERROR_TYPE(thr, DUK_STR_NOT_BUFFER); + return NULL; /* not reachable */ +} +#endif /* DUK_USE_BUFFEROBJECT_SUPPORT */ + +DUK_LOCAL void duk__set_bufobj_buffer(duk_context *ctx, duk_hbufferobject *h_bufobj, duk_hbuffer *h_val) { + duk_hthread *thr; + + thr = (duk_hthread *) ctx; + DUK_UNREF(thr); + + DUK_ASSERT(ctx != NULL); + DUK_ASSERT(h_bufobj != NULL); + DUK_ASSERT(h_bufobj->buf == NULL); /* no need to decref */ + DUK_ASSERT(h_val != NULL); + DUK_ASSERT_HBUFFEROBJECT_VALID(h_bufobj); + + h_bufobj->buf = h_val; + DUK_HBUFFER_INCREF(thr, h_val); + h_bufobj->length = (duk_uint_t) DUK_HBUFFER_GET_SIZE(h_val); + DUK_ASSERT(h_bufobj->shift == 0); + DUK_ASSERT(h_bufobj->elem_type == DUK_HBUFFEROBJECT_ELEM_UINT8); + + DUK_ASSERT_HBUFFEROBJECT_VALID(h_bufobj); +} + +#if defined(DUK_USE_BUFFEROBJECT_SUPPORT) +DUK_LOCAL duk_hbufferobject *duk__push_arraybuffer_with_length(duk_context *ctx, duk_uint_t len) { + duk_hbuffer *h_val; + duk_hbufferobject *h_bufobj; + + (void) duk_push_fixed_buffer(ctx, (duk_size_t) len); + h_val = (duk_hbuffer *) duk_get_hbuffer(ctx, -1); + DUK_ASSERT(h_val != NULL); + + h_bufobj = duk_push_bufferobject_raw(ctx, + DUK_HOBJECT_FLAG_EXTENSIBLE | + DUK_HOBJECT_FLAG_BUFFEROBJECT | + DUK_HOBJECT_CLASS_AS_FLAGS(DUK_HOBJECT_CLASS_ARRAYBUFFER), + DUK_BIDX_ARRAYBUFFER_PROTOTYPE); + DUK_ASSERT(h_bufobj != NULL); + + duk__set_bufobj_buffer(ctx, h_bufobj, h_val); + DUK_ASSERT_HBUFFEROBJECT_VALID(h_bufobj); + + return h_bufobj; +} +#endif /* DUK_USE_BUFFEROBJECT_SUPPORT */ + +#if defined(DUK_USE_BUFFEROBJECT_SUPPORT) +/* Shared offset/length coercion helper. */ +DUK_LOCAL void duk__resolve_offset_opt_length(duk_context *ctx, + duk_hbufferobject *h_bufarg, + duk_idx_t idx_offset, + duk_idx_t idx_length, + duk_uint_t *out_offset, + duk_uint_t *out_length, + duk_bool_t throw_flag) { + duk_hthread *thr; + duk_int_t offset_signed; + duk_int_t length_signed; + duk_uint_t offset; + duk_uint_t length; + + thr = (duk_hthread *) ctx; + DUK_UNREF(thr); + + offset_signed = duk_to_int(ctx, idx_offset); + if (offset_signed < 0) { + goto fail_range; + } + offset = (duk_uint_t) offset_signed; + if (offset > h_bufarg->length) { + goto fail_range; + } + DUK_ASSERT_DISABLE(offset >= 0); /* unsigned */ + DUK_ASSERT(offset <= h_bufarg->length); + + if (duk_is_undefined(ctx, idx_length)) { + DUK_ASSERT(h_bufarg->length >= offset); + length = h_bufarg->length - offset; /* >= 0 */ + } else { + length_signed = duk_to_int(ctx, idx_length); + if (length_signed < 0) { + goto fail_range; + } + length = (duk_uint_t) length_signed; + DUK_ASSERT(h_bufarg->length >= offset); + if (length > h_bufarg->length - offset) { + /* Unlike for negative arguments, some call sites + * want length to be clamped if it's positive. + */ + if (throw_flag) { + goto fail_range; + } else { + length = h_bufarg->length - offset; + } + } + } + DUK_ASSERT_DISABLE(length >= 0); /* unsigned */ + DUK_ASSERT(offset + length <= h_bufarg->length); + + *out_offset = offset; + *out_length = length; + return; + + fail_range: + DUK_ERROR_RANGE(thr, DUK_STR_INVALID_CALL_ARGS); +} +#endif /* DUK_USE_BUFFEROBJECT_SUPPORT */ + +#if defined(DUK_USE_BUFFEROBJECT_SUPPORT) +/* Shared lenient buffer length clamping helper. No negative indices, no + * element/byte shifting. + */ +DUK_LOCAL void duk__clamp_startend_nonegidx_noshift(duk_context *ctx, + duk_hbufferobject *h_bufobj, + duk_idx_t idx_start, + duk_idx_t idx_end, + duk_int_t *out_start_offset, + duk_int_t *out_end_offset) { + duk_int_t buffer_length; + duk_int_t start_offset; + duk_int_t end_offset; + + DUK_ASSERT(out_start_offset != NULL); + DUK_ASSERT(out_end_offset != NULL); + + buffer_length = (duk_int_t) h_bufobj->length; + + /* undefined coerces to zero which is correct */ + start_offset = duk_to_int_clamped(ctx, idx_start, 0, buffer_length); + if (duk_is_undefined(ctx, idx_end)) { + end_offset = buffer_length; + } else { + end_offset = duk_to_int_clamped(ctx, idx_end, start_offset, buffer_length); + } + + DUK_ASSERT(start_offset >= 0); + DUK_ASSERT(start_offset <= buffer_length); + DUK_ASSERT(end_offset >= 0); + DUK_ASSERT(end_offset <= buffer_length); + DUK_ASSERT(start_offset <= end_offset); + + *out_start_offset = start_offset; + *out_end_offset = end_offset; +} +#endif /* DUK_USE_BUFFEROBJECT_SUPPORT */ + +#if defined(DUK_USE_BUFFEROBJECT_SUPPORT) +/* Shared lenient buffer length clamping helper. Indices are treated as + * element indices (though output values are byte offsets) which only + * really matters for TypedArray views as other buffer object have a zero + * shift. Negative indices are counted from end of input slice; crossed + * indices are clamped to zero length; and final indices are clamped + * against input slice. Used for e.g. ArrayBuffer slice(). + */ +DUK_LOCAL void duk__clamp_startend_negidx_shifted(duk_context *ctx, + duk_hbufferobject *h_bufobj, + duk_idx_t idx_start, + duk_idx_t idx_end, + duk_int_t *out_start_offset, + duk_int_t *out_end_offset) { + duk_int_t buffer_length; + duk_int_t start_offset; + duk_int_t end_offset; + + DUK_ASSERT(out_start_offset != NULL); + DUK_ASSERT(out_end_offset != NULL); + + buffer_length = (duk_int_t) h_bufobj->length; + buffer_length >>= h_bufobj->shift; /* as elements */ + + /* Resolve start/end offset as element indices first; arguments + * at idx_start/idx_end are element offsets. Working with element + * indices first also avoids potential for wrapping. + */ + + start_offset = duk_to_int(ctx, idx_start); + if (start_offset < 0) { + start_offset = buffer_length + start_offset; + } + if (duk_is_undefined(ctx, idx_end)) { + end_offset = buffer_length; + } else { + end_offset = duk_to_int(ctx, idx_end); + if (end_offset < 0) { + end_offset = buffer_length + end_offset; + } + } + /* Note: start_offset/end_offset can still be < 0 here. */ + + if (start_offset < 0) { + start_offset = 0; + } else if (start_offset > buffer_length) { + start_offset = buffer_length; + } + if (end_offset < start_offset) { + end_offset = start_offset; + } else if (end_offset > buffer_length) { + end_offset = buffer_length; + } + DUK_ASSERT(start_offset >= 0); + DUK_ASSERT(start_offset <= buffer_length); + DUK_ASSERT(end_offset >= 0); + DUK_ASSERT(end_offset <= buffer_length); + DUK_ASSERT(start_offset <= end_offset); + + /* Convert indices to byte offsets. */ + start_offset <<= h_bufobj->shift; + end_offset <<= h_bufobj->shift; + + *out_start_offset = start_offset; + *out_end_offset = end_offset; +} +#endif /* DUK_USE_BUFFEROBJECT_SUPPORT */ + +/* + * Indexed read/write helpers (also used from outside this file) + */ + +DUK_INTERNAL void duk_hbufferobject_push_validated_read(duk_context *ctx, duk_hbufferobject *h_bufobj, duk_uint8_t *p, duk_small_uint_t elem_size) { + duk_double_union du; + + DUK_MEMCPY((void *) du.uc, (const void *) p, (size_t) elem_size); + + switch (h_bufobj->elem_type) { + case DUK_HBUFFEROBJECT_ELEM_UINT8: +#if defined(DUK_USE_BUFFEROBJECT_SUPPORT) + case DUK_HBUFFEROBJECT_ELEM_UINT8CLAMPED: +#endif + duk_push_uint(ctx, (duk_uint_t) du.uc[0]); + break; +#if defined(DUK_USE_BUFFEROBJECT_SUPPORT) + /* These are not needed when only Duktape.Buffer is supported. */ + case DUK_HBUFFEROBJECT_ELEM_INT8: + duk_push_int(ctx, (duk_int_t) (duk_int8_t) du.uc[0]); + break; + case DUK_HBUFFEROBJECT_ELEM_UINT16: + duk_push_uint(ctx, (duk_uint_t) du.us[0]); + break; + case DUK_HBUFFEROBJECT_ELEM_INT16: + duk_push_int(ctx, (duk_int_t) (duk_int16_t) du.us[0]); + break; + case DUK_HBUFFEROBJECT_ELEM_UINT32: + duk_push_uint(ctx, (duk_uint_t) du.ui[0]); + break; + case DUK_HBUFFEROBJECT_ELEM_INT32: + duk_push_int(ctx, (duk_int_t) (duk_int32_t) du.ui[0]); + break; + case DUK_HBUFFEROBJECT_ELEM_FLOAT32: + duk_push_number(ctx, (duk_double_t) du.f[0]); + break; + case DUK_HBUFFEROBJECT_ELEM_FLOAT64: + duk_push_number(ctx, (duk_double_t) du.d); + break; +#endif /* DUK_USE_BUFFEROBJECT_SUPPORT */ + default: + DUK_UNREACHABLE(); + } +} + +DUK_INTERNAL void duk_hbufferobject_validated_write(duk_context *ctx, duk_hbufferobject *h_bufobj, duk_uint8_t *p, duk_small_uint_t elem_size) { + duk_double_union du; + + /* NOTE! Caller must ensure that any side effects from the + * coercions below are safe. If that cannot be guaranteed + * (which is normally the case), caller must coerce the + * argument using duk_to_number() before any pointer + * validations; the result of duk_to_number() always coerces + * without side effects here. + */ + + switch (h_bufobj->elem_type) { + case DUK_HBUFFEROBJECT_ELEM_UINT8: + du.uc[0] = (duk_uint8_t) duk_to_uint32(ctx, -1); + break; +#if defined(DUK_USE_BUFFEROBJECT_SUPPORT) + /* These are not needed when only Duktape.Buffer is supported. */ + case DUK_HBUFFEROBJECT_ELEM_UINT8CLAMPED: + du.uc[0] = (duk_uint8_t) duk_to_uint8clamped(ctx, -1); + break; + case DUK_HBUFFEROBJECT_ELEM_INT8: + du.uc[0] = (duk_uint8_t) duk_to_int32(ctx, -1); + break; + case DUK_HBUFFEROBJECT_ELEM_UINT16: + du.us[0] = (duk_uint16_t) duk_to_uint32(ctx, -1); + break; + case DUK_HBUFFEROBJECT_ELEM_INT16: + du.us[0] = (duk_uint16_t) duk_to_int32(ctx, -1); + break; + case DUK_HBUFFEROBJECT_ELEM_UINT32: + du.ui[0] = (duk_uint32_t) duk_to_uint32(ctx, -1); + break; + case DUK_HBUFFEROBJECT_ELEM_INT32: + du.ui[0] = (duk_uint32_t) duk_to_int32(ctx, -1); + break; + case DUK_HBUFFEROBJECT_ELEM_FLOAT32: + du.f[0] = (duk_float_t) duk_to_number(ctx, -1); + break; + case DUK_HBUFFEROBJECT_ELEM_FLOAT64: + du.d = (duk_double_t) duk_to_number(ctx, -1); + break; +#endif /* DUK_USE_BUFFEROBJECT_SUPPORT */ + default: + DUK_UNREACHABLE(); + } + + DUK_MEMCPY((void *) p, (const void *) du.uc, (size_t) elem_size); +} + +/* + * Duktape.Buffer: constructor + */ + +DUK_INTERNAL duk_ret_t duk_bi_buffer_constructor(duk_context *ctx) { + duk_hthread *thr; + duk_size_t buf_size; + duk_small_int_t buf_dynamic; + duk_uint8_t *buf_data; + const duk_uint8_t *src_data; + + thr = (duk_hthread *) ctx; + DUK_UNREF(thr); + + /* + * Constructor arguments are currently somewhat compatible with + * (keep it that way if possible): + * + * http://nodejs.org/api/buffer.html + * + * Note that the ToBuffer() coercion (duk_to_buffer()) does NOT match + * the constructor behavior. + */ + + buf_dynamic = duk_get_boolean(ctx, 1); /* default to false */ + + switch (duk_get_type(ctx, 0)) { + case DUK_TYPE_NUMBER: { + /* new buffer of specified size */ + buf_size = (duk_size_t) duk_to_int(ctx, 0); + (void) duk_push_buffer(ctx, buf_size, buf_dynamic); + break; + } + case DUK_TYPE_BUFFER: { + /* return input buffer, converted to a Duktape.Buffer object + * if called as a constructor (no change if called as a + * function). + */ + duk_set_top(ctx, 1); + break; + } + case DUK_TYPE_STRING: { + /* new buffer with string contents */ + src_data = (const duk_uint8_t *) duk_get_lstring(ctx, 0, &buf_size); + DUK_ASSERT(src_data != NULL); /* even for zero-length string */ + buf_data = (duk_uint8_t *) duk_push_buffer(ctx, buf_size, buf_dynamic); + DUK_MEMCPY((void *) buf_data, (const void *) src_data, (size_t) buf_size); + break; + } + case DUK_TYPE_OBJECT: { + /* For all duk_hbufferobjects, get the plain buffer inside + * without making a copy. This is compatible with Duktape 1.2 + * but means that a slice/view information is ignored and the + * full underlying buffer is returned. + * + * If called as a constructor, a new Duktape.Buffer object + * pointing to the same plain buffer is created below. + */ + duk_hbufferobject *h_bufobj; + h_bufobj = (duk_hbufferobject *) duk_get_hobject(ctx, 0); + DUK_ASSERT(h_bufobj != NULL); + if (!DUK_HOBJECT_IS_BUFFEROBJECT((duk_hobject *) h_bufobj)) { + return DUK_RET_TYPE_ERROR; + } + if (h_bufobj->buf == NULL) { + return DUK_RET_TYPE_ERROR; + } + duk_push_hbuffer(ctx, h_bufobj->buf); + break; + } + case DUK_TYPE_NONE: + default: { + return DUK_RET_TYPE_ERROR; + } + } + DUK_ASSERT(duk_is_buffer(ctx, -1)); + + /* stack is unbalanced, but: [ buf ] */ + + if (duk_is_constructor_call(ctx)) { + duk_hbufferobject *h_bufobj; + duk_hbuffer *h_val; + + h_val = duk_get_hbuffer(ctx, -1); + DUK_ASSERT(h_val != NULL); + + h_bufobj = duk_push_bufferobject_raw(ctx, + DUK_HOBJECT_FLAG_EXTENSIBLE | + DUK_HOBJECT_FLAG_BUFFEROBJECT | + DUK_HOBJECT_CLASS_AS_FLAGS(DUK_HOBJECT_CLASS_BUFFER), + DUK_BIDX_BUFFER_PROTOTYPE); + DUK_ASSERT(h_bufobj != NULL); + + duk__set_bufobj_buffer(ctx, h_bufobj, h_val); + + DUK_ASSERT_HBUFFEROBJECT_VALID(h_bufobj); + } + /* Note: unbalanced stack on purpose */ + + return 1; +} + +/* + * Node.js Buffer: constructor + */ + +#if defined(DUK_USE_BUFFEROBJECT_SUPPORT) +DUK_INTERNAL duk_ret_t duk_bi_nodejs_buffer_constructor(duk_context *ctx) { + /* Internal class is Object: Object.prototype.toString.call(new Buffer(0)) + * prints "[object Object]". + */ + duk_int_t len; + duk_int_t i; + duk_hbuffer *h_buf; + duk_hbufferobject *h_bufobj; + duk_size_t buf_size; + + switch (duk_get_type(ctx, 0)) { + case DUK_TYPE_BUFFER: { + /* Custom behavior: plain buffer is used as internal buffer + * without making a copy (matches Duktape.Buffer). + */ + duk_set_top(ctx, 1); /* -> [ buffer ] */ + break; + } + case DUK_TYPE_NUMBER: { + len = duk_to_int_clamped(ctx, 0, 0, DUK_INT_MAX); + (void) duk_push_fixed_buffer(ctx, (duk_size_t) len); + break; + } + case DUK_TYPE_OBJECT: { + duk_uint8_t *buf; + + (void) duk_get_prop_string(ctx, 0, "length"); + len = duk_to_int_clamped(ctx, -1, 0, DUK_INT_MAX); + duk_pop(ctx); + buf = (duk_uint8_t *) duk_push_fixed_buffer(ctx, (duk_size_t) len); + for (i = 0; i < len; i++) { + /* XXX: fast path for array arguments? */ + duk_get_prop_index(ctx, 0, (duk_uarridx_t) i); + buf[i] = (duk_uint8_t) (duk_to_uint32(ctx, -1) & 0xffU); + duk_pop(ctx); + } + break; + } + case DUK_TYPE_STRING: { + /* ignore encoding for now */ + duk_dup(ctx, 0); + (void) duk_to_buffer(ctx, -1, &buf_size); + break; + } + default: + return DUK_RET_TYPE_ERROR; + } + + DUK_ASSERT(duk_is_buffer(ctx, -1)); + h_buf = duk_get_hbuffer(ctx, -1); + DUK_ASSERT(h_buf != NULL); + + h_bufobj = duk_push_bufferobject_raw(ctx, + DUK_HOBJECT_FLAG_EXTENSIBLE | + DUK_HOBJECT_FLAG_BUFFEROBJECT | + DUK_HOBJECT_CLASS_AS_FLAGS(DUK_HOBJECT_CLASS_BUFFER), + DUK_BIDX_NODEJS_BUFFER_PROTOTYPE); + DUK_ASSERT(h_bufobj != NULL); + + h_bufobj->buf = h_buf; + DUK_HBUFFER_INCREF(thr, h_buf); + DUK_ASSERT(h_bufobj->offset == 0); + h_bufobj->length = (duk_int_t) DUK_HBUFFER_GET_SIZE(h_buf); + DUK_ASSERT(h_bufobj->elem_type == DUK_HBUFFEROBJECT_ELEM_UINT8); + + DUK_ASSERT_HBUFFEROBJECT_VALID(h_bufobj); + + return 1; +} +#else /* DUK_USE_BUFFEROBJECT_SUPPORT */ +DUK_INTERNAL duk_ret_t duk_bi_nodejs_buffer_constructor(duk_context *ctx) { + DUK_UNREF(ctx); + return DUK_RET_UNSUPPORTED_ERROR; +} +#endif /* DUK_USE_BUFFEROBJECT_SUPPORT */ + +/* + * ArrayBuffer, DataView, and TypedArray constructors + */ + +#if defined(DUK_USE_BUFFEROBJECT_SUPPORT) +DUK_INTERNAL duk_ret_t duk_bi_arraybuffer_constructor(duk_context *ctx) { + duk_hthread *thr; + duk_hbufferobject *h_bufobj; + duk_hbuffer *h_val; + + DUK_ASSERT_CTX_VALID(ctx); + thr = (duk_hthread *) ctx; + DUK_UNREF(thr); + + /* XXX: function flag to make this automatic? */ + if (!duk_is_constructor_call(ctx)) { + return DUK_RET_TYPE_ERROR; + } + + if (duk_is_buffer(ctx, 0)) { + /* Custom behavior: plain buffer is used as internal buffer + * without making a copy (matches Duktape.Buffer). + */ + + h_val = duk_get_hbuffer(ctx, 0); + DUK_ASSERT(h_val != NULL); + + /* XXX: accept any duk_hbufferobject type as an input also? */ + } else { + duk_int_t len; + len = duk_to_int(ctx, 0); + if (len < 0) { + goto fail_length; + } + (void) duk_push_fixed_buffer(ctx, (duk_size_t) len); + h_val = (duk_hbuffer *) duk_get_hbuffer(ctx, -1); + DUK_ASSERT(h_val != NULL); + +#if !defined(DUK_USE_ZERO_BUFFER_DATA) + /* Khronos/ES6 requires zeroing even when DUK_USE_ZERO_BUFFER_DATA + * is not set. + */ + DUK_ASSERT(!DUK_HBUFFER_HAS_DYNAMIC((duk_hbuffer *) h_val)); + DUK_MEMZERO((void *) DUK_HBUFFER_FIXED_GET_DATA_PTR(thr->heap, h_val), (duk_size_t) len); +#endif + } + + h_bufobj = duk_push_bufferobject_raw(ctx, + DUK_HOBJECT_FLAG_EXTENSIBLE | + DUK_HOBJECT_FLAG_BUFFEROBJECT | + DUK_HOBJECT_CLASS_AS_FLAGS(DUK_HOBJECT_CLASS_ARRAYBUFFER), + DUK_BIDX_ARRAYBUFFER_PROTOTYPE); + DUK_ASSERT(h_bufobj != NULL); + + duk__set_bufobj_buffer(ctx, h_bufobj, h_val); + DUK_ASSERT_HBUFFEROBJECT_VALID(h_bufobj); + + return 1; + + fail_length: + return DUK_RET_RANGE_ERROR; +} +#else /* DUK_USE_BUFFEROBJECT_SUPPORT */ +DUK_INTERNAL duk_ret_t duk_bi_arraybuffer_constructor(duk_context *ctx) { + DUK_UNREF(ctx); + return DUK_RET_UNSUPPORTED_ERROR; +} +#endif /* DUK_USE_BUFFEROBJECT_SUPPORT */ + + +/* Format of magic, bits: + * 0...1: elem size shift (0-3) + * 2...5: elem type (DUK_HBUFFEROBJECT_ELEM_xxx) + */ + +#if defined(DUK_USE_BUFFEROBJECT_SUPPORT) +DUK_INTERNAL duk_ret_t duk_bi_typedarray_constructor(duk_context *ctx) { + duk_hthread *thr; + duk_tval *tv; + duk_hobject *h_obj; + duk_hbufferobject *h_bufobj = NULL; + duk_hbufferobject *h_bufarr = NULL; + duk_hbufferobject *h_bufarg = NULL; + duk_hbuffer *h_val; + duk_small_uint_t magic; + duk_small_uint_t shift; + duk_small_uint_t elem_type; + duk_small_uint_t elem_size; + duk_small_uint_t class_num; + duk_small_uint_t proto_bidx; + duk_uint_t align_mask; + duk_uint_t elem_length; + duk_int_t elem_length_signed; + duk_uint_t byte_length; + duk_small_uint_t copy_mode; + + thr = (duk_hthread *) ctx; + DUK_UNREF(thr); + + /* XXX: function flag to make this automatic? */ + if (!duk_is_constructor_call(ctx)) { + return DUK_RET_TYPE_ERROR; + } + + /* We could fit built-in index into magic but that'd make the magic + * number dependent on built-in numbering (genbuiltins.py doesn't + * handle that yet). So map both class and prototype from the + * element type. + */ + magic = duk_get_current_magic(ctx); + shift = magic & 0x03; /* bits 0...1: shift */ + elem_type = (magic >> 2) & 0x0f; /* bits 2...5: type */ + elem_size = 1 << shift; + align_mask = elem_size - 1; + DUK_ASSERT(elem_type < sizeof(duk__buffer_proto_from_elemtype) / sizeof(duk_uint8_t)); + proto_bidx = duk__buffer_proto_from_elemtype[elem_type]; + DUK_ASSERT(proto_bidx < DUK_NUM_BUILTINS); + DUK_ASSERT(elem_type < sizeof(duk__buffer_class_from_elemtype) / sizeof(duk_uint8_t)); + class_num = duk__buffer_class_from_elemtype[elem_type]; + + DUK_DD(DUK_DDPRINT("typedarray constructor, magic=%d, shift=%d, elem_type=%d, " + "elem_size=%d, proto_bidx=%d, class_num=%d", + (int) magic, (int) shift, (int) elem_type, (int) elem_size, + (int) proto_bidx, (int) class_num)); + + /* Argument variants. When the argument is an ArrayBuffer a view to + * the same buffer is created; otherwise a new ArrayBuffer is always + * created. + */ + + tv = duk_get_tval(ctx, 0); + DUK_ASSERT(tv != NULL); /* arg count */ + if (DUK_TVAL_IS_OBJECT(tv)) { + h_obj = DUK_TVAL_GET_OBJECT(tv); + DUK_ASSERT(h_obj != NULL); + + if (DUK_HOBJECT_GET_CLASS_NUMBER(h_obj) == DUK_HOBJECT_CLASS_ARRAYBUFFER) { + /* ArrayBuffer: unlike any other argument variant, create + * a view into the existing buffer. + */ + + duk_int_t byte_offset_signed; + duk_uint_t byte_offset; + + h_bufarg = (duk_hbufferobject *) h_obj; + + byte_offset_signed = duk_to_int(ctx, 1); + if (byte_offset_signed < 0) { + goto fail_arguments; + } + byte_offset = (duk_uint_t) byte_offset_signed; + if (byte_offset > h_bufarg->length || + (byte_offset & align_mask) != 0) { + /* Must be >= 0 and multiple of element size. */ + goto fail_arguments; + } + if (duk_is_undefined(ctx, 2)) { + DUK_ASSERT(h_bufarg->length >= byte_offset); + byte_length = h_bufarg->length - byte_offset; + if ((byte_length & align_mask) != 0) { + /* Must be element size multiple from + * start offset to end of buffer. + */ + goto fail_arguments; + } + elem_length = (byte_length >> shift); + } else { + elem_length_signed = duk_to_int(ctx, 2); + if (elem_length_signed < 0) { + goto fail_arguments; + } + elem_length = (duk_uint_t) elem_length_signed; + byte_length = elem_length << shift; + if ((byte_length >> shift) != elem_length) { + /* Byte length would overflow. */ + /* XXX: easier check with less code? */ + goto fail_arguments; + } + DUK_ASSERT(h_bufarg->length >= byte_offset); + if (byte_length > h_bufarg->length - byte_offset) { + /* Not enough data. */ + goto fail_arguments; + } + } + DUK_UNREF(elem_length); + DUK_ASSERT_DISABLE(byte_offset >= 0); + DUK_ASSERT(byte_offset <= h_bufarg->length); + DUK_ASSERT_DISABLE(byte_length >= 0); + DUK_ASSERT(byte_offset + byte_length <= h_bufarg->length); + DUK_ASSERT((elem_length << shift) == byte_length); + + h_bufobj = duk_push_bufferobject_raw(ctx, + DUK_HOBJECT_FLAG_EXTENSIBLE | + DUK_HOBJECT_FLAG_BUFFEROBJECT | + DUK_HOBJECT_CLASS_AS_FLAGS(class_num), + proto_bidx); + h_val = h_bufarg->buf; + if (h_val == NULL) { + return DUK_RET_TYPE_ERROR; + } + h_bufobj->buf = h_val; + DUK_HBUFFER_INCREF(thr, h_val); + h_bufobj->offset = h_bufarg->offset + byte_offset; + h_bufobj->length = byte_length; + h_bufobj->shift = (duk_uint8_t) shift; + h_bufobj->elem_type = (duk_uint8_t) elem_type; + h_bufobj->is_view = 1; + DUK_ASSERT_HBUFFEROBJECT_VALID(h_bufobj); + + /* Set .buffer to the argument ArrayBuffer. */ + duk_dup(ctx, 0); + duk_xdef_prop_stridx(ctx, -2, DUK_STRIDX_LC_BUFFER, DUK_PROPDESC_FLAGS_NONE); + duk_compact(ctx, -1); + return 1; + } else if (DUK_HOBJECT_IS_BUFFEROBJECT(h_obj)) { + /* TypedArray (or other non-ArrayBuffer duk_hbufferobject). + * Conceptually same behavior as for an Array-like argument, + * with a few fast paths. + */ + + h_bufarg = (duk_hbufferobject *) h_obj; + DUK_ASSERT_HBUFFEROBJECT_VALID(h_bufarg); + elem_length_signed = (duk_int_t) (h_bufarg->length >> h_bufarg->shift); + if (h_bufarg->buf == NULL) { + return DUK_RET_TYPE_ERROR; + } + + /* Select copy mode. Must take into account element + * compatibility and validity of the underlying source + * buffer. + */ + + DUK_DDD(DUK_DDDPRINT("selecting copy mode for bufobj arg, " + "src byte_length=%ld, src shift=%d, " + "src/dst elem_length=%ld; " + "dst shift=%d -> dst byte_length=%ld", + (long) h_bufarg->length, (int) h_bufarg->shift, + (long) elem_length_signed, (int) shift, + (long) (elem_length_signed << shift))); + + copy_mode = 2; /* default is explicit index read/write copy */ + DUK_ASSERT(elem_type < sizeof(duk__buffer_elemtype_copy_compatible) / sizeof(duk_uint16_t)); + if (DUK_HBUFFEROBJECT_VALID_SLICE(h_bufarg)) { + if ((duk__buffer_elemtype_copy_compatible[elem_type] & (1 << h_bufarg->elem_type)) != 0) { + DUK_DDD(DUK_DDDPRINT("source/target are copy compatible, memcpy")); + DUK_ASSERT(shift == h_bufarg->shift); /* byte sizes will match */ + copy_mode = 0; + } else { + DUK_DDD(DUK_DDDPRINT("source/target not copy compatible but valid, fast copy")); + copy_mode = 1; + } + } + } else { + /* Array or Array-like */ + elem_length_signed = (duk_int_t) duk_get_length(ctx, 0); + copy_mode = 2; + } + } else if (DUK_TVAL_IS_BUFFER(tv)) { + /* Accept plain buffer values like array initializers + * (new in Duktape 1.4.0). + */ + duk_hbuffer *h_srcbuf; + h_srcbuf = DUK_TVAL_GET_BUFFER(tv); + elem_length_signed = (duk_int_t) DUK_HBUFFER_GET_SIZE(h_srcbuf); + copy_mode = 2; /* XXX: could add fast path for u8 compatible views */ + } else { + /* Non-object argument is simply int coerced, matches + * V8 behavior (except for "null", which we coerce to + * 0 but V8 TypeErrors). + */ + elem_length_signed = duk_to_int(ctx, 0); + copy_mode = 3; + } + if (elem_length_signed < 0) { + goto fail_arguments; + } + elem_length = (duk_uint_t) elem_length_signed; + byte_length = (duk_uint_t) (elem_length << shift); + if ((byte_length >> shift) != elem_length) { + /* Byte length would overflow. */ + /* XXX: easier check with less code? */ + goto fail_arguments; + } + + DUK_DDD(DUK_DDDPRINT("elem_length=%ld, byte_length=%ld", + (long) elem_length, (long) byte_length)); + + /* ArrayBuffer argument is handled specially above; the rest of the + * argument variants are handled by shared code below. + */ + + /* Push a new ArrayBuffer (becomes view .buffer) */ + h_bufarr = duk__push_arraybuffer_with_length(ctx, byte_length); + DUK_ASSERT(h_bufarr != NULL); + h_val = h_bufarr->buf; + DUK_ASSERT(h_val != NULL); + + /* Push the resulting view object and attach the ArrayBuffer. */ + h_bufobj = duk_push_bufferobject_raw(ctx, + DUK_HOBJECT_FLAG_EXTENSIBLE | + DUK_HOBJECT_FLAG_BUFFEROBJECT | + DUK_HOBJECT_CLASS_AS_FLAGS(class_num), + proto_bidx); + + h_bufobj->buf = h_val; + DUK_HBUFFER_INCREF(thr, h_val); + DUK_ASSERT(h_bufobj->offset == 0); + h_bufobj->length = byte_length; + h_bufobj->shift = (duk_uint8_t) shift; + h_bufobj->elem_type = (duk_uint8_t) elem_type; + h_bufobj->is_view = 1; + DUK_ASSERT_HBUFFEROBJECT_VALID(h_bufobj); + + /* Set .buffer */ + duk_dup(ctx, -2); + duk_xdef_prop_stridx(ctx, -2, DUK_STRIDX_LC_BUFFER, DUK_PROPDESC_FLAGS_NONE); + duk_compact(ctx, -1); + + /* Copy values, the copy method depends on the arguments. + * + * Copy mode decision may depend on the validity of the underlying + * buffer of the source argument; there must be no harmful side effects + * from there to here for copy_mode to still be valid. + */ + DUK_DDD(DUK_DDDPRINT("copy mode: %d", (int) copy_mode)); + switch (copy_mode) { + case 0: { + /* Use byte copy. */ + + duk_uint8_t *p_src; + duk_uint8_t *p_dst; + + DUK_ASSERT(h_bufobj != NULL); + DUK_ASSERT(h_bufobj->buf != NULL); + DUK_ASSERT(DUK_HBUFFEROBJECT_VALID_SLICE(h_bufobj)); + DUK_ASSERT(h_bufarg != NULL); + DUK_ASSERT(h_bufarg->buf != NULL); + DUK_ASSERT(DUK_HBUFFEROBJECT_VALID_SLICE(h_bufarg)); + + p_dst = DUK_HBUFFEROBJECT_GET_SLICE_BASE(thr->heap, h_bufobj); + p_src = DUK_HBUFFEROBJECT_GET_SLICE_BASE(thr->heap, h_bufarg); + + DUK_DDD(DUK_DDDPRINT("using memcpy: p_src=%p, p_dst=%p, byte_length=%ld", + (void *) p_src, (void *) p_dst, (long) byte_length)); + + DUK_MEMCPY((void *) p_dst, (const void *) p_src, (size_t) byte_length); + break; + } + case 1: { + /* Copy values through direct validated reads and writes. */ + + duk_small_uint_t src_elem_size; + duk_small_uint_t dst_elem_size; + duk_uint8_t *p_src; + duk_uint8_t *p_src_end; + duk_uint8_t *p_dst; + + DUK_ASSERT(h_bufobj != NULL); + DUK_ASSERT(h_bufobj->buf != NULL); + DUK_ASSERT(DUK_HBUFFEROBJECT_VALID_SLICE(h_bufobj)); + DUK_ASSERT(h_bufarg != NULL); + DUK_ASSERT(h_bufarg->buf != NULL); + DUK_ASSERT(DUK_HBUFFEROBJECT_VALID_SLICE(h_bufarg)); + + src_elem_size = 1 << h_bufarg->shift; + dst_elem_size = elem_size; + + p_src = DUK_HBUFFEROBJECT_GET_SLICE_BASE(thr->heap, h_bufarg); + p_dst = DUK_HBUFFEROBJECT_GET_SLICE_BASE(thr->heap, h_bufobj); + p_src_end = p_src + h_bufarg->length; + + DUK_DDD(DUK_DDDPRINT("using fast copy: p_src=%p, p_src_end=%p, p_dst=%p, " + "src_elem_size=%d, dst_elem_size=%d", + (void *) p_src, (void *) p_src_end, (void *) p_dst, + (int) src_elem_size, (int) dst_elem_size)); + + while (p_src != p_src_end) { + DUK_DDD(DUK_DDDPRINT("fast path per element copy loop: " + "p_src=%p, p_src_end=%p, p_dst=%p", + (void *) p_src, (void *) p_src_end, (void *) p_dst)); + /* A validated read() is always a number, so it's write coercion + * is always side effect free an won't invalidate pointers etc. + */ + duk_hbufferobject_push_validated_read(ctx, h_bufarg, p_src, src_elem_size); + duk_hbufferobject_validated_write(ctx, h_bufobj, p_dst, dst_elem_size); + duk_pop(ctx); + p_src += src_elem_size; + p_dst += dst_elem_size; + } + break; + } + case 2: { + /* Copy values by index reads and writes. Let virtual + * property handling take care of coercion. + */ + duk_uint_t i; + + DUK_DDD(DUK_DDDPRINT("using slow copy")); + + for (i = 0; i < elem_length; i++) { + duk_get_prop_index(ctx, 0, (duk_uarridx_t) i); + duk_put_prop_index(ctx, -2, (duk_uarridx_t) i); + } + break; + } + default: + case 3: { + /* No copy, leave zero bytes in the buffer. There's no + * ambiguity with Float32/Float64 because zero bytes also + * represent 0.0. + */ +#if !defined(DUK_USE_ZERO_BUFFER_DATA) + /* Khronos/ES6 requires zeroing even when DUK_USE_ZERO_BUFFER_DATA + * is not set. + */ + DUK_ASSERT(!DUK_HBUFFER_HAS_DYNAMIC((duk_hbuffer *) h_val)); + DUK_MEMZERO((void *) DUK_HBUFFER_FIXED_GET_DATA_PTR(thr->heap, h_val), (duk_size_t) byte_length); +#endif + + DUK_DDD(DUK_DDDPRINT("using no copy")); + break; + } + } + + return 1; + + fail_arguments: + return DUK_RET_RANGE_ERROR; +} +#else /* DUK_USE_BUFFEROBJECT_SUPPORT */ +DUK_INTERNAL duk_ret_t duk_bi_typedarray_constructor(duk_context *ctx) { + DUK_UNREF(ctx); + return DUK_RET_UNSUPPORTED_ERROR; +} +#endif /* DUK_USE_BUFFEROBJECT_SUPPORT */ + +#if defined(DUK_USE_BUFFEROBJECT_SUPPORT) +DUK_INTERNAL duk_ret_t duk_bi_dataview_constructor(duk_context *ctx) { + duk_hbufferobject *h_bufarg; + duk_hbufferobject *h_bufobj; + duk_hbuffer *h_val; + duk_uint_t offset; + duk_uint_t length; + + /* XXX: function flag to make this automatic? */ + if (!duk_is_constructor_call(ctx)) { + return DUK_RET_TYPE_ERROR; + } + + h_bufarg = duk__require_bufobj_value(ctx, 0); + DUK_ASSERT(h_bufarg != NULL); + + duk__resolve_offset_opt_length(ctx, h_bufarg, 1, 2, &offset, &length, 1 /*throw_flag*/); + DUK_ASSERT(offset <= h_bufarg->length); + DUK_ASSERT(offset + length <= h_bufarg->length); + + h_bufobj = duk_push_bufferobject_raw(ctx, + DUK_HOBJECT_FLAG_EXTENSIBLE | + DUK_HOBJECT_FLAG_BUFFEROBJECT | + DUK_HOBJECT_CLASS_AS_FLAGS(DUK_HOBJECT_CLASS_DATAVIEW), + DUK_BIDX_DATAVIEW_PROTOTYPE); + + h_val = h_bufarg->buf; + if (h_val == NULL) { + return DUK_RET_TYPE_ERROR; + } + h_bufobj->buf = h_val; + DUK_HBUFFER_INCREF(thr, h_val); + h_bufobj->offset = h_bufarg->offset + offset; + h_bufobj->length = length; + DUK_ASSERT(h_bufobj->shift == 0); + DUK_ASSERT(h_bufobj->elem_type == DUK_HBUFFEROBJECT_ELEM_UINT8); + h_bufobj->is_view = 1; + + /* The DataView .buffer property is ordinarily set to the argument + * which is an ArrayBuffer. We accept any duk_hbufferobject as + * an argument and .buffer will be set to the argument regardless + * of what it is. This may be a bit confusing if the argument + * is e.g. a DataView or another TypedArray view. + * + * XXX: Copy .buffer property from a DataView/TypedArray argument? + * Create a fresh ArrayBuffer for Duktape.Buffer and Node.js Buffer + * arguments? See: test-bug-dataview-buffer-prop.js. + */ + + duk_dup(ctx, 0); + duk_xdef_prop_stridx(ctx, -2, DUK_STRIDX_LC_BUFFER, DUK_PROPDESC_FLAGS_NONE); + duk_compact(ctx, -1); + + DUK_ASSERT_HBUFFEROBJECT_VALID(h_bufobj); + return 1; +} +#else /* DUK_USE_BUFFEROBJECT_SUPPORT */ +DUK_INTERNAL duk_ret_t duk_bi_dataview_constructor(duk_context *ctx) { + DUK_UNREF(ctx); + return DUK_RET_UNSUPPORTED_ERROR; +} +#endif /* DUK_USE_BUFFEROBJECT_SUPPORT */ + +/* + * ArrayBuffer.isView() + */ + +#if defined(DUK_USE_BUFFEROBJECT_SUPPORT) +DUK_INTERNAL duk_ret_t duk_bi_arraybuffer_isview(duk_context *ctx) { + duk_hobject *h_obj; + duk_bool_t ret = 0; + + h_obj = duk_get_hobject(ctx, 0); + if (h_obj != NULL && DUK_HOBJECT_IS_BUFFEROBJECT(h_obj)) { + ret = ((duk_hbufferobject *) h_obj)->is_view; + } + duk_push_boolean(ctx, ret); + return 1; +} +#else /* DUK_USE_BUFFEROBJECT_SUPPORT */ +DUK_INTERNAL duk_ret_t duk_bi_arraybuffer_isview(duk_context *ctx) { + DUK_UNREF(ctx); + return DUK_RET_UNSUPPORTED_ERROR; +} +#endif /* DUK_USE_BUFFEROBJECT_SUPPORT */ + +/* + * Node.js Buffer: toString([encoding], [start], [end]) + */ + +#if defined(DUK_USE_BUFFEROBJECT_SUPPORT) +DUK_INTERNAL duk_ret_t duk_bi_nodejs_buffer_tostring(duk_context *ctx) { + duk_hthread *thr; + duk_hbufferobject *h_this; + duk_int_t start_offset, end_offset; + duk_uint8_t *buf_slice; + duk_size_t slice_length; + + thr = (duk_hthread *) ctx; + DUK_UNREF(thr); + + h_this = duk__get_bufobj_this(ctx); + if (h_this == NULL) { + /* XXX: happens e.g. when evaluating: String(Buffer.prototype). */ + duk_push_string(ctx, "[object Object]"); + return 1; + } + DUK_ASSERT_HBUFFEROBJECT_VALID(h_this); + + /* ignore encoding for now */ + + duk__clamp_startend_nonegidx_noshift(ctx, h_this, 1 /*idx_start*/, 2 /*idx_end*/, &start_offset, &end_offset); + + slice_length = (duk_size_t) (end_offset - start_offset); + buf_slice = (duk_uint8_t *) duk_push_fixed_buffer(ctx, slice_length); + DUK_ASSERT(buf_slice != NULL); + + if (h_this->buf == NULL) { + goto type_error; + } + + if (DUK_HBUFFEROBJECT_VALID_BYTEOFFSET_EXCL(h_this, start_offset + slice_length)) { + DUK_MEMCPY((void *) buf_slice, + (const void *) (DUK_HBUFFEROBJECT_GET_SLICE_BASE(thr->heap, h_this) + start_offset), + (size_t) slice_length); + } else { + /* not covered, return all zeroes */ + ; + } + + duk_to_string(ctx, -1); + return 1; + + type_error: + return DUK_RET_TYPE_ERROR; +} +#else /* DUK_USE_BUFFEROBJECT_SUPPORT */ +DUK_INTERNAL duk_ret_t duk_bi_nodejs_buffer_tostring(duk_context *ctx) { + DUK_UNREF(ctx); + return DUK_RET_UNSUPPORTED_ERROR; +} +#endif /* DUK_USE_BUFFEROBJECT_SUPPORT */ + +/* + * Duktape.Buffer: toString(), valueOf() + */ + +#if defined(DUK_USE_BUFFEROBJECT_SUPPORT) +DUK_INTERNAL duk_ret_t duk_bi_buffer_prototype_tostring_shared(duk_context *ctx) { + duk_hthread *thr; + duk_tval *tv; + duk_small_int_t to_string = duk_get_current_magic(ctx); + + thr = (duk_hthread *) ctx; + DUK_UNREF(thr); + + tv = duk_get_borrowed_this_tval(ctx); + DUK_ASSERT(tv != NULL); + + if (DUK_TVAL_IS_BUFFER(tv)) { + duk_hbuffer *h_buf; + h_buf = DUK_TVAL_GET_BUFFER(tv); + DUK_ASSERT(h_buf != NULL); + duk_push_hbuffer(ctx, h_buf); + } else if (DUK_TVAL_IS_OBJECT(tv)) { + duk_hobject *h; + duk_hbufferobject *h_bufobj; + + /* Accept any duk_hbufferobject, though we're only normally + * called for Duktape.Buffer values. + */ + h = DUK_TVAL_GET_OBJECT(tv); + DUK_ASSERT(h != NULL); + if (!DUK_HOBJECT_IS_BUFFEROBJECT(h)) { + DUK_DD(DUK_DDPRINT("toString/valueOf() called for a non-bufferobject object")); + goto type_error; + } + h_bufobj = (duk_hbufferobject *) h; + DUK_ASSERT_HBUFFEROBJECT_VALID(h_bufobj); + + if (h_bufobj->buf == NULL) { + DUK_DD(DUK_DDPRINT("toString/valueOf() called for a bufferobject with NULL buf")); + goto type_error; + } + duk_push_hbuffer(ctx, h_bufobj->buf); + } else { + goto type_error; + } + + if (to_string) { + duk_to_string(ctx, -1); + } + return 1; + + type_error: + return DUK_RET_TYPE_ERROR; +} +#else /* DUK_USE_BUFFEROBJECT_SUPPORT */ +DUK_INTERNAL duk_ret_t duk_bi_buffer_prototype_tostring_shared(duk_context *ctx) { + DUK_UNREF(ctx); + return DUK_RET_UNSUPPORTED_ERROR; +} +#endif /* DUK_USE_BUFFEROBJECT_SUPPORT */ + +/* + * Node.js Buffer.prototype: toJSON() + */ + +#if defined(DUK_USE_BUFFEROBJECT_SUPPORT) +DUK_INTERNAL duk_ret_t duk_bi_nodejs_buffer_tojson(duk_context *ctx) { + duk_hthread *thr; + duk_hbufferobject *h_this; + duk_uint8_t *buf; + duk_uint_t i; + + thr = (duk_hthread *) ctx; + DUK_UNREF(thr); + h_this = duk__require_bufobj_this(ctx); + DUK_ASSERT(h_this != NULL); + + if (h_this->buf == NULL || !DUK_HBUFFEROBJECT_VALID_SLICE(h_this)) { + /* Serialize uncovered backing buffer as a null; doesn't + * really matter as long we're memory safe. + */ + duk_push_null(ctx); + return 1; + } + + duk_push_object(ctx); + duk_push_hstring_stridx(ctx, DUK_STRIDX_UC_BUFFER); + duk_put_prop_stridx(ctx, -2, DUK_STRIDX_TYPE); + + duk_push_array(ctx); + for (i = 0; i < h_this->length; i++) { + /* XXX: regetting the pointer may be overkill - we're writing + * to a side-effect free array here. + */ + DUK_ASSERT(h_this->buf != NULL); + buf = DUK_HBUFFEROBJECT_GET_SLICE_BASE(thr->heap, h_this); + duk_push_uint(ctx, (duk_uint_t) buf[i]); + duk_put_prop_index(ctx, -2, (duk_idx_t) i); + } + duk_put_prop_stridx(ctx, -2, DUK_STRIDX_DATA); + + return 1; +} +#else /* DUK_USE_BUFFEROBJECT_SUPPORT */ +DUK_INTERNAL duk_ret_t duk_bi_nodejs_buffer_tojson(duk_context *ctx) { + DUK_UNREF(ctx); + return DUK_RET_UNSUPPORTED_ERROR; +} +#endif /* DUK_USE_BUFFEROBJECT_SUPPORT */ + +/* + * Node.js Buffer.prototype.equals() + * Node.js Buffer.prototype.compare() + * Node.js Buffer.compare() + */ + +#if defined(DUK_USE_BUFFEROBJECT_SUPPORT) +DUK_INTERNAL duk_ret_t duk_bi_buffer_compare_shared(duk_context *ctx) { + duk_hthread *thr; + duk_small_uint_t magic; + duk_hbufferobject *h_bufarg1; + duk_hbufferobject *h_bufarg2; + duk_small_int_t comp_res; + + thr = (duk_hthread *) ctx; + DUK_UNREF(thr); + + magic = duk_get_current_magic(ctx); + if (magic & 0x02) { + /* Static call style. */ + h_bufarg1 = duk__require_bufobj_value(ctx, 0); + h_bufarg2 = duk__require_bufobj_value(ctx, 1); + } else { + h_bufarg1 = duk__require_bufobj_this(ctx); + h_bufarg2 = duk__require_bufobj_value(ctx, 0); + } + DUK_ASSERT(h_bufarg1 != NULL); + DUK_ASSERT(h_bufarg2 != NULL); + + /* We want to compare the slice/view areas of the arguments. + * If either slice/view is invalid (underlying buffer is shorter) + * ensure equals() is false, but otherwise the only thing that + * matters is to be memory safe. + */ + + if (DUK_HBUFFEROBJECT_VALID_SLICE(h_bufarg1) && + DUK_HBUFFEROBJECT_VALID_SLICE(h_bufarg2)) { + comp_res = duk_js_data_compare((const duk_uint8_t *) DUK_HBUFFER_GET_DATA_PTR(thr->heap, h_bufarg1->buf) + h_bufarg1->offset, + (const duk_uint8_t *) DUK_HBUFFER_GET_DATA_PTR(thr->heap, h_bufarg2->buf) + h_bufarg2->offset, + (duk_size_t) h_bufarg1->length, + (duk_size_t) h_bufarg2->length); + } else { + comp_res = -1; /* either nonzero value is ok */ + } + + if (magic & 0x01) { + /* compare: similar to string comparison but for buffer data. */ + duk_push_int(ctx, comp_res); + } else { + /* equals */ + duk_push_boolean(ctx, (comp_res == 0)); + } + + return 1; +} +#else /* DUK_USE_BUFFEROBJECT_SUPPORT */ +DUK_INTERNAL duk_ret_t duk_bi_buffer_compare_shared(duk_context *ctx) { + DUK_UNREF(ctx); + return DUK_RET_UNSUPPORTED_ERROR; +} +#endif /* DUK_USE_BUFFEROBJECT_SUPPORT */ + +/* + * Node.js Buffer.prototype.fill() + */ + +#if defined(DUK_USE_BUFFEROBJECT_SUPPORT) +DUK_INTERNAL duk_ret_t duk_bi_nodejs_buffer_fill(duk_context *ctx) { + duk_hthread *thr; + duk_hbufferobject *h_this; + const duk_uint8_t *fill_str_ptr; + duk_size_t fill_str_len; + duk_uint8_t fill_value; + duk_int_t fill_offset; + duk_int_t fill_end; + duk_size_t fill_length; + duk_uint8_t *p; + + thr = (duk_hthread *) ctx; + DUK_UNREF(thr); + + h_this = duk__require_bufobj_this(ctx); + DUK_ASSERT(h_this != NULL); + if (h_this->buf == NULL) { + return DUK_RET_TYPE_ERROR; + } + + /* [ value offset end ] */ + + if (duk_is_string(ctx, 0)) { + fill_str_ptr = (const duk_uint8_t *) duk_get_lstring(ctx, 0, &fill_str_len); + DUK_ASSERT(fill_str_ptr != NULL); + } else { + fill_value = (duk_uint8_t) duk_to_uint32(ctx, 0); + fill_str_ptr = (const duk_uint8_t *) &fill_value; + fill_str_len = 1; + } + + /* Fill offset handling is more lenient than in Node.js. */ + + duk__clamp_startend_nonegidx_noshift(ctx, h_this, 1 /*idx_start*/, 2 /*idx_end*/, &fill_offset, &fill_end); + + DUK_DDD(DUK_DDDPRINT("fill: fill_value=%02x, fill_offset=%ld, fill_end=%ld, view length=%ld", + (unsigned int) fill_value, (long) fill_offset, (long) fill_end, (long) h_this->length)); + + DUK_ASSERT(fill_end - fill_offset >= 0); + DUK_ASSERT(h_this->buf != NULL); + + p = (DUK_HBUFFEROBJECT_GET_SLICE_BASE(thr->heap, h_this) + fill_offset); + fill_length = (duk_size_t) (fill_end - fill_offset); + if (fill_str_len == 1) { + /* Handle single character fills as memset() even when + * the fill data comes from a one-char argument. + */ + DUK_MEMSET((void *) p, (int) fill_str_ptr[0], (size_t) fill_length); + } else if (fill_str_len > 1) { + duk_size_t i, n, t; + + for (i = 0, n = (fill_end - fill_offset), t = 0; i < n; i++) { + p[i] = fill_str_ptr[t++]; + if (t >= fill_str_len) { + t = 0; + } + } + } else { + DUK_DDD(DUK_DDDPRINT("zero size fill pattern, ignore silently")); + } + + /* Return the Buffer to allow chaining: b.fill(0x11).fill(0x22, 3, 5).toString() */ + duk_push_this(ctx); + return 1; +} +#else /* DUK_USE_BUFFEROBJECT_SUPPORT */ +DUK_INTERNAL duk_ret_t duk_bi_nodejs_buffer_fill(duk_context *ctx) { + DUK_UNREF(ctx); + return DUK_RET_UNSUPPORTED_ERROR; +} +#endif /* DUK_USE_BUFFEROBJECT_SUPPORT */ + +/* + * Node.js Buffer.prototype.write(string, [offset], [length], [encoding]) + */ + +#if defined(DUK_USE_BUFFEROBJECT_SUPPORT) +DUK_INTERNAL duk_ret_t duk_bi_nodejs_buffer_write(duk_context *ctx) { + duk_hthread *thr; + duk_hbufferobject *h_this; + duk_uint_t offset; + duk_uint_t length; + const duk_uint8_t *str_data; + duk_size_t str_len; + + thr = (duk_hthread *) ctx; + DUK_UNREF(thr); + + h_this = duk__require_bufobj_this(ctx); + DUK_ASSERT(h_this != NULL); + + /* Argument must be a string, e.g. a buffer is not allowed. */ + str_data = (const duk_uint8_t *) duk_require_lstring(ctx, 0, &str_len); + + duk__resolve_offset_opt_length(ctx, h_this, 1, 2, &offset, &length, 0 /*throw_flag*/); + DUK_ASSERT(offset <= h_this->length); + DUK_ASSERT(offset + length <= h_this->length); + + /* XXX: encoding is ignored now. */ + + if (length > str_len) { + length = (duk_uint_t) str_len; + } + + if (DUK_HBUFFEROBJECT_VALID_SLICE(h_this)) { + /* Cannot overlap. */ + DUK_MEMCPY((void *) (DUK_HBUFFEROBJECT_GET_SLICE_BASE(thr->heap, h_this) + offset), + (const void *) str_data, + (size_t) length); + } else { + DUK_DDD(DUK_DDDPRINT("write() target buffer is not covered, silent ignore")); + } + + duk_push_uint(ctx, length); + return 1; +} +#else /* DUK_USE_BUFFEROBJECT_SUPPORT */ +DUK_INTERNAL duk_ret_t duk_bi_nodejs_buffer_write(duk_context *ctx) { + DUK_UNREF(ctx); + return DUK_RET_UNSUPPORTED_ERROR; +} +#endif /* DUK_USE_BUFFEROBJECT_SUPPORT */ + +/* + * Node.js Buffer.prototype.copy() + */ + +#if defined(DUK_USE_BUFFEROBJECT_SUPPORT) +DUK_INTERNAL duk_ret_t duk_bi_nodejs_buffer_copy(duk_context *ctx) { + duk_hthread *thr; + duk_hbufferobject *h_this; + duk_hbufferobject *h_bufarg; + duk_int_t source_length; + duk_int_t target_length; + duk_int_t target_start, source_start, source_end; + duk_uint_t target_ustart, source_ustart, source_uend; + duk_uint_t copy_size = 0; + + /* [ targetBuffer targetStart sourceStart sourceEnd ] */ + + thr = (duk_hthread *) ctx; + DUK_UNREF(thr); + + h_this = duk__require_bufobj_this(ctx); + h_bufarg = duk__require_bufobj_value(ctx, 0); + DUK_ASSERT(h_this != NULL); + DUK_ASSERT(h_bufarg != NULL); + source_length = (duk_int_t) h_this->length; + target_length = (duk_int_t) h_bufarg->length; + + target_start = duk_to_int(ctx, 1); + source_start = duk_to_int(ctx, 2); + if (duk_is_undefined(ctx, 3)) { + source_end = source_length; + } else { + source_end = duk_to_int(ctx, 3); + } + + DUK_DDD(DUK_DDDPRINT("checking copy args: target_start=%ld, target_length=%ld, " + "source_start=%ld, source_end=%ld, source_length=%ld", + (long) target_start, (long) h_bufarg->length, + (long) source_start, (long) source_end, (long) source_length)); + + /* This behavior mostly mimics Node.js now. */ + + if (source_start < 0 || source_end < 0 || target_start < 0) { + /* Negative offsets cause a RangeError. */ + goto fail_bounds; + } + source_ustart = (duk_uint_t) source_start; + source_uend = (duk_uint_t) source_end; + target_ustart = (duk_uint_t) target_start; + if (source_ustart >= source_uend || /* crossed offsets or zero size */ + source_ustart >= (duk_uint_t) source_length || /* source out-of-bounds (but positive) */ + target_ustart >= (duk_uint_t) target_length) { /* target out-of-bounds (but positive) */ + goto silent_ignore; + } + if (source_uend >= (duk_uint_t) source_length) { + /* Source end clamped silently to available length. */ + source_uend = source_length; + } + copy_size = source_uend - source_ustart; + if (target_ustart + copy_size > (duk_uint_t) target_length) { + /* Clamp to target's end if too long. + * + * NOTE: there's no overflow possibility in the comparison; + * both target_ustart and copy_size are >= 0 and based on + * values in duk_int_t range. Adding them as duk_uint_t + * values is then guaranteed not to overflow. + */ + DUK_ASSERT(target_ustart + copy_size >= target_ustart); /* no overflow */ + DUK_ASSERT(target_ustart + copy_size >= copy_size); /* no overflow */ + copy_size = (duk_uint_t) target_length - target_ustart; + } + + DUK_DDD(DUK_DDDPRINT("making copy: target_ustart=%lu source_ustart=%lu copy_size=%lu", + (unsigned long) target_ustart, (unsigned long) source_ustart, + (unsigned long) copy_size)); + + DUK_ASSERT(copy_size >= 1); + DUK_ASSERT(source_ustart <= (duk_uint_t) source_length); + DUK_ASSERT(source_ustart + copy_size <= (duk_uint_t) source_length); + DUK_ASSERT(target_ustart <= (duk_uint_t) target_length); + DUK_ASSERT(target_ustart + copy_size <= (duk_uint_t) target_length); + + /* Ensure copy is covered by underlying buffers. */ + DUK_ASSERT(h_bufarg->buf != NULL); /* length check */ + DUK_ASSERT(h_this->buf != NULL); /* length check */ + if (DUK_HBUFFEROBJECT_VALID_BYTEOFFSET_EXCL(h_bufarg, target_ustart + copy_size) && + DUK_HBUFFEROBJECT_VALID_BYTEOFFSET_EXCL(h_this, source_ustart + copy_size)) { + /* Must use memmove() because copy area may overlap (source and target + * buffer may be the same, or from different slices. + */ + DUK_MEMMOVE((void *) (DUK_HBUFFEROBJECT_GET_SLICE_BASE(thr->heap, h_bufarg) + target_ustart), + (const void *) (DUK_HBUFFEROBJECT_GET_SLICE_BASE(thr->heap, h_this) + source_ustart), + (size_t) copy_size); + } else { + DUK_DDD(DUK_DDDPRINT("buffer copy not covered by underlying buffer(s), ignoring")); + } + + silent_ignore: + /* Return value is like write(), number of bytes written. + * The return value matters because of code like: + * "off += buf.copy(...)". + */ + duk_push_uint(ctx, copy_size); + return 1; + + fail_bounds: + return DUK_RET_RANGE_ERROR; +} +#else /* DUK_USE_BUFFEROBJECT_SUPPORT */ +DUK_INTERNAL duk_ret_t duk_bi_nodejs_buffer_copy(duk_context *ctx) { + DUK_UNREF(ctx); + return DUK_RET_UNSUPPORTED_ERROR; +} +#endif /* DUK_USE_BUFFEROBJECT_SUPPORT */ + +/* + * TypedArray.prototype.set() + * + * TypedArray set() is pretty interesting to implement because: + * + * - The source argument may be a plain array or a typedarray. If the + * source is a TypedArray, values are decoded and re-encoded into the + * target (not as a plain byte copy). This may happen even when the + * element byte size is the same, e.g. integer values may be re-encoded + * into floats. + * + * - Source and target may refer to the same underlying buffer, so that + * the set() operation may overlap. The specification requires that this + * must work as if a copy was made before the operation. Note that this + * is NOT a simple memmove() situation because the source and target + * byte sizes may be different -- e.g. a 4-byte source (Int8Array) may + * expand to a 16-byte target (Uint32Array) so that the target overlaps + * the source both from beginning and the end (unlike in typical memmove). + * + * - Even if 'buf' pointers of the source and target differ, there's no + * guarantee that their memory areas don't overlap. This may be the + * case with external buffers. + * + * Even so, it is nice to optimize for the common case: + * + * - Source and target separate buffers or non-overlapping. + * + * - Source and target have a compatible type so that a plain byte copy + * is possible. Note that while e.g. uint8 and int8 are compatible + * (coercion one way or another doesn't change the byte representation), + * e.g. int8 and uint8clamped are NOT compatible when writing int8 + * values into uint8clamped typedarray (-1 would clamp to 0 for instance). + * + * See test-bi-typedarray-proto-set.js. + */ + +#if defined(DUK_USE_BUFFEROBJECT_SUPPORT) +DUK_INTERNAL duk_ret_t duk_bi_typedarray_set(duk_context *ctx) { + duk_hthread *thr; + duk_hbufferobject *h_this; + duk_hobject *h_obj; + duk_uarridx_t i, n; + duk_int_t offset_signed; + duk_uint_t offset_elems; + duk_uint_t offset_bytes; + + thr = (duk_hthread *) ctx; + DUK_UNREF(thr); + + h_this = duk__require_bufobj_this(ctx); + DUK_ASSERT(h_this != NULL); + DUK_ASSERT_HBUFFEROBJECT_VALID(h_this); + + if (h_this->buf == NULL) { + DUK_DDD(DUK_DDDPRINT("source neutered, skip copy")); + return 0; + } + + h_obj = duk_require_hobject(ctx, 0); + DUK_ASSERT(h_obj != NULL); + + /* XXX: V8 throws a TypeError for negative values. Would it + * be more useful to interpret negative offsets here from the + * end of the buffer too? + */ + offset_signed = duk_to_int(ctx, 1); + if (offset_signed < 0) { + return DUK_RET_TYPE_ERROR; + } + offset_elems = (duk_uint_t) offset_signed; + offset_bytes = offset_elems << h_this->shift; + if ((offset_bytes >> h_this->shift) != offset_elems) { + /* Byte length would overflow. */ + /* XXX: easier check with less code? */ + return DUK_RET_RANGE_ERROR; + } + if (offset_bytes > h_this->length) { + /* Equality may be OK but >length not. Checking + * this explicitly avoids some overflow cases + * below. + */ + return DUK_RET_RANGE_ERROR; + } + DUK_ASSERT(offset_bytes <= h_this->length); + + /* Fast path: source is a TypedArray (or any bufferobject). */ + + if (DUK_HOBJECT_IS_BUFFEROBJECT(h_obj)) { + duk_hbufferobject *h_bufarg; + duk_uint16_t comp_mask; + duk_small_int_t no_overlap = 0; + duk_uint_t src_length; + duk_uint_t dst_length; + duk_uint_t dst_length_elems; + duk_uint8_t *p_src_base; + duk_uint8_t *p_src_end; + duk_uint8_t *p_src; + duk_uint8_t *p_dst_base; + duk_uint8_t *p_dst; + duk_small_uint_t src_elem_size; + duk_small_uint_t dst_elem_size; + + h_bufarg = (duk_hbufferobject *) h_obj; + DUK_ASSERT_HBUFFEROBJECT_VALID(h_bufarg); + + if (h_bufarg->buf == NULL) { + DUK_DDD(DUK_DDDPRINT("target neutered, skip copy")); + return 0; + } + + /* Nominal size check. */ + src_length = h_bufarg->length; /* bytes in source */ + dst_length_elems = (src_length >> h_bufarg->shift); /* elems in source and dest */ + dst_length = dst_length_elems << h_this->shift; /* bytes in dest */ + if ((dst_length >> h_this->shift) != dst_length_elems) { + /* Byte length would overflow. */ + /* XXX: easier check with less code? */ + return DUK_RET_RANGE_ERROR; + } + DUK_DDD(DUK_DDDPRINT("nominal size check: src_length=%ld, dst_length=%ld", + (long) src_length, (long) dst_length)); + DUK_ASSERT(offset_bytes <= h_this->length); + if (dst_length > h_this->length - offset_bytes) { + /* Overflow not an issue because subtraction is used on the right + * side and guaranteed to be >= 0. + */ + DUK_DDD(DUK_DDDPRINT("copy exceeds target buffer nominal length")); + return DUK_RET_RANGE_ERROR; + } + if (!DUK_HBUFFEROBJECT_VALID_BYTEOFFSET_EXCL(h_this, offset_bytes + dst_length)) { + DUK_DDD(DUK_DDDPRINT("copy not covered by underlying target buffer, ignore")); + return 0; + } + + p_src_base = DUK_HBUFFEROBJECT_GET_SLICE_BASE(thr->heap, h_bufarg); + p_dst_base = DUK_HBUFFEROBJECT_GET_SLICE_BASE(thr->heap, h_this) + offset_bytes; + + /* Check actual underlying buffers for validity and that they + * cover the copy. No side effects are allowed after the check + * so that the validity status doesn't change. + */ + if (!DUK_HBUFFEROBJECT_VALID_SLICE(h_this) || + !DUK_HBUFFEROBJECT_VALID_SLICE(h_bufarg)) { + /* The condition could be more narrow and check for the + * copy area only, but there's no need for fine grained + * behavior when the underlying buffer is misconfigured. + */ + DUK_DDD(DUK_DDDPRINT("source and/or target not covered by underlying buffer, skip copy")); + return 0; + } + + /* We want to do a straight memory copy if possible: this is + * an important operation because .set() is the TypedArray + * way to copy chunks of memory. However, because set() + * conceptually works in terms of elements, not all views are + * compatible with direct byte copying. + * + * If we do manage a direct copy, the "overlap issue" handled + * below can just be solved using memmove() because the source + * and destination element sizes are necessarily equal. + */ + + DUK_ASSERT(h_this->elem_type < sizeof(duk__buffer_elemtype_copy_compatible) / sizeof(duk_uint16_t)); + comp_mask = duk__buffer_elemtype_copy_compatible[h_this->elem_type]; + if (comp_mask & (1 << h_bufarg->elem_type)) { + DUK_ASSERT(src_length == dst_length); + + DUK_DDD(DUK_DDDPRINT("fast path: able to use memmove() because views are compatible")); + DUK_MEMMOVE((void *) p_dst_base, (const void *) p_src_base, (size_t) dst_length); + return 0; + } + DUK_DDD(DUK_DDDPRINT("fast path: views are not compatible with a byte copy, copy by item")); + + /* We want to avoid making a copy to process set() but that's + * not always possible: the source and the target may overlap + * and because element sizes are different, the overlap cannot + * always be handled with a memmove() or choosing the copy + * direction in a certain way. For example, if source type is + * uint8 and target type is uint32, the target area may exceed + * the source area from both ends! + * + * Note that because external buffers may point to the same + * memory areas, we must ultimately make this check using + * pointers. + * + * NOTE: careful with side effects: any side effect may cause + * a buffer resize (or external buffer pointer/length update)! + */ + + DUK_DDD(DUK_DDDPRINT("overlap check: p_src_base=%p, src_length=%ld, " + "p_dst_base=%p, dst_length=%ld", + (void *) p_src_base, (long) src_length, + (void *) p_dst_base, (long) dst_length)); + + if (p_src_base >= p_dst_base + dst_length || /* source starts after dest ends */ + p_src_base + src_length <= p_dst_base) { /* source ends before dest starts */ + no_overlap = 1; + } + + if (!no_overlap) { + /* There's overlap: the desired end result is that + * conceptually a copy is made to avoid "trampling" + * of source data by destination writes. We make + * an actual temporary copy to handle this case. + */ + duk_uint8_t *p_src_copy; + + DUK_DDD(DUK_DDDPRINT("there is overlap, make a copy of the source")); + p_src_copy = (duk_uint8_t *) duk_push_fixed_buffer(ctx, src_length); + DUK_ASSERT(p_src_copy != NULL); + DUK_MEMCPY((void *) p_src_copy, (const void *) p_src_base, (size_t) src_length); + + p_src_base = p_src_copy; /* use p_src_base from now on */ + } + /* Value stack intentionally mixed size here. */ + + DUK_DDD(DUK_DDDPRINT("after overlap check: p_src_base=%p, src_length=%ld, " + "p_dst_base=%p, dst_length=%ld, valstack top=%ld", + (void *) p_src_base, (long) src_length, + (void *) p_dst_base, (long) dst_length, + (long) duk_get_top(ctx))); + + /* Ready to make the copy. We must proceed element by element + * and must avoid any side effects that might cause the buffer + * validity check above to become invalid. + * + * Although we work through the value stack here, only plain + * numbers are handled which should be side effect safe. + */ + + src_elem_size = 1 << h_bufarg->shift; + dst_elem_size = 1 << h_this->shift; + p_src = p_src_base; + p_dst = p_dst_base; + p_src_end = p_src_base + src_length; + + while (p_src != p_src_end) { + DUK_DDD(DUK_DDDPRINT("fast path per element copy loop: " + "p_src=%p, p_src_end=%p, p_dst=%p", + (void *) p_src, (void *) p_src_end, (void *) p_dst)); + /* A validated read() is always a number, so it's write coercion + * is always side effect free an won't invalidate pointers etc. + */ + duk_hbufferobject_push_validated_read(ctx, h_bufarg, p_src, src_elem_size); + duk_hbufferobject_validated_write(ctx, h_this, p_dst, dst_elem_size); + duk_pop(ctx); + p_src += src_elem_size; + p_dst += dst_elem_size; + } + + return 0; + } else { + /* Slow path: quite slow, but we save space by using the property code + * to write coerce target values. We don't need to worry about overlap + * here because the source is not a TypedArray. + * + * We could use the bufferobject write coercion helper but since the + * property read may have arbitrary side effects, full validity checks + * would be needed for every element anyway. + */ + + n = (duk_uarridx_t) duk_get_length(ctx, 0); + DUK_ASSERT(offset_bytes <= h_this->length); + if ((n << h_this->shift) > h_this->length - offset_bytes) { + /* Overflow not an issue because subtraction is used on the right + * side and guaranteed to be >= 0. + */ + DUK_DDD(DUK_DDDPRINT("copy exceeds target buffer nominal length")); + return DUK_RET_RANGE_ERROR; + } + + /* There's no need to check for buffer validity status for the + * target here: the property access code will do that for each + * element. Moreover, if we did check the validity here, side + * effects from reading the source argument might invalidate + * the results anyway. + */ + + DUK_ASSERT_TOP(ctx, 2); + duk_push_this(ctx); + + for (i = 0; i < n; i++) { + duk_get_prop_index(ctx, 0, i); + duk_put_prop_index(ctx, 2, offset_elems + i); + } + } + + return 0; +} +#else /* DUK_USE_BUFFEROBJECT_SUPPORT */ +DUK_INTERNAL duk_ret_t duk_bi_typedarray_set(duk_context *ctx) { + DUK_UNREF(ctx); + return DUK_RET_UNSUPPORTED_ERROR; +} +#endif /* DUK_USE_BUFFEROBJECT_SUPPORT */ + +/* + * Node.js Buffer.prototype.slice([start], [end]) + * ArrayBuffer.prototype.slice(begin, [end]) + * TypedArray.prototype.slice(begin, [end]) + * + * The API calls are almost identical; negative indices are counted from end + * of buffer, and final indices are clamped (allowing crossed indices). Main + * differences: + * + * - Copy/view behavior; Node.js .slice() and TypedArray .subarray() create + * views, ArrayBuffer .slice() creates a copy + * + * - Resulting object has a different class and prototype depending on the + * call (or 'this' argument) + * + * - TypedArray .subarray() arguments are element indices, not byte offsets + */ + +#if defined(DUK_USE_BUFFEROBJECT_SUPPORT) +DUK_INTERNAL duk_ret_t duk_bi_buffer_slice_shared(duk_context *ctx) { + duk_hthread *thr; + duk_small_int_t magic; + duk_small_uint_t res_class_num; + duk_hobject *res_proto; + duk_hbufferobject *h_this; + duk_hbufferobject *h_bufobj; + duk_hbuffer *h_val; + duk_int_t start_offset, end_offset; + duk_uint_t slice_length; + + thr = (duk_hthread *) ctx; + DUK_UNREF(thr); + + /* [ start end ] */ + + magic = duk_get_current_magic(ctx); + h_this = duk__require_bufobj_this(ctx); + + /* Slice offsets are element (not byte) offsets, which only matters + * for TypedArray views, Node.js Buffer and ArrayBuffer have shift + * zero so byte and element offsets are the same. Negative indices + * are counted from end of slice, crossed indices are allowed (and + * result in zero length result), and final values are clamped + * against the current slice. There's intentionally no check + * against the underlying buffer here. + */ + + duk__clamp_startend_negidx_shifted(ctx, h_this, 0 /*idx_start*/, 1 /*idx_end*/, &start_offset, &end_offset); + DUK_ASSERT(end_offset >= start_offset); + slice_length = (duk_uint_t) (end_offset - start_offset); + + /* The resulting buffer object gets the same class and prototype as + * the buffer in 'this', e.g. if the input is a Node.js Buffer the + * result is a Node.js Buffer; if the input is a Float32Array, the + * result is a Float32Array. + * + * For the class number this seems correct. The internal prototype + * is not so clear: if 'this' is a bufferobject with a non-standard + * prototype object, that value gets copied over into the result + * (instead of using the standard prototype for that object type). + */ + + res_class_num = DUK_HOBJECT_GET_CLASS_NUMBER((duk_hobject *) h_this); + h_bufobj = duk_push_bufferobject_raw(ctx, + DUK_HOBJECT_FLAG_EXTENSIBLE | + DUK_HOBJECT_FLAG_BUFFEROBJECT | + DUK_HOBJECT_CLASS_AS_FLAGS(res_class_num), + DUK_BIDX_OBJECT_PROTOTYPE); /* replaced */ + DUK_ASSERT(h_bufobj != NULL); + res_proto = DUK_HOBJECT_GET_PROTOTYPE(thr->heap, (duk_hobject *) h_this); /* may be NULL */ + DUK_HOBJECT_SET_PROTOTYPE_UPDREF(thr, (duk_hobject *) h_bufobj, res_proto); + + h_bufobj->length = slice_length; + h_bufobj->shift = h_this->shift; /* inherit */ + h_bufobj->elem_type = h_this->elem_type; /* inherit */ + h_bufobj->is_view = magic & 0x01; + DUK_ASSERT(h_bufobj->is_view == 0 || h_bufobj->is_view == 1); + + h_val = h_this->buf; + if (h_val == NULL) { + return DUK_RET_TYPE_ERROR; + } + + if (magic & 0x02) { + /* non-zero: make copy */ + duk_uint8_t *p_copy; + duk_size_t copy_length; + + p_copy = (duk_uint8_t *) duk_push_fixed_buffer(ctx, (duk_size_t) slice_length); + DUK_ASSERT(p_copy != NULL); + + /* Copy slice, respecting underlying buffer limits; remainder + * is left as zero. + */ + copy_length = DUK_HBUFFEROBJECT_CLAMP_BYTELENGTH(h_this, slice_length); + DUK_MEMCPY((void *) p_copy, + (const void *) (DUK_HBUFFEROBJECT_GET_SLICE_BASE(thr->heap, h_this) + start_offset), + copy_length); + + h_val = duk_get_hbuffer(ctx, -1); + DUK_ASSERT(h_val != NULL); + + h_bufobj->buf = h_val; + DUK_HBUFFER_INCREF(thr, h_val); + DUK_ASSERT(h_bufobj->offset == 0); + + duk_pop(ctx); /* reachable so pop OK */ + } else { + h_bufobj->buf = h_val; + DUK_HBUFFER_INCREF(thr, h_val); + h_bufobj->offset = (duk_uint_t) (h_this->offset + start_offset); + + /* Copy the .buffer property, needed for TypedArray.prototype.subarray(). + * + * XXX: limit copy only for TypedArray classes specifically? + */ + + duk_push_this(ctx); + if (duk_get_prop_stridx(ctx, -1, DUK_STRIDX_LC_BUFFER)) { + duk_xdef_prop_stridx(ctx, -3, DUK_STRIDX_LC_BUFFER, DUK_PROPDESC_FLAGS_NONE); + duk_pop(ctx); + } else { + duk_pop_2(ctx); + } + } + /* unbalanced stack on purpose */ + + DUK_ASSERT_HBUFFEROBJECT_VALID(h_bufobj); + return 1; +} +#else /* DUK_USE_BUFFEROBJECT_SUPPORT */ +DUK_INTERNAL duk_ret_t duk_bi_buffer_slice_shared(duk_context *ctx) { + DUK_UNREF(ctx); + return DUK_RET_UNSUPPORTED_ERROR; +} +#endif /* DUK_USE_BUFFEROBJECT_SUPPORT */ + +/* + * Node.js Buffer.isEncoding() + */ + +#if defined(DUK_USE_BUFFEROBJECT_SUPPORT) +DUK_INTERNAL duk_ret_t duk_bi_nodejs_buffer_is_encoding(duk_context *ctx) { + const char *encoding; + + /* only accept lowercase 'utf8' now. */ + + encoding = duk_to_string(ctx, 0); + DUK_ASSERT(duk_is_string(ctx, 0)); /* guaranteed by duk_to_string() */ + duk_push_boolean(ctx, DUK_STRCMP(encoding, "utf8") == 0); + return 1; +} +#else /* DUK_USE_BUFFEROBJECT_SUPPORT */ +DUK_INTERNAL duk_ret_t duk_bi_nodejs_buffer_is_encoding(duk_context *ctx) { + DUK_UNREF(ctx); + return DUK_RET_UNSUPPORTED_ERROR; +} +#endif /* DUK_USE_BUFFEROBJECT_SUPPORT */ + +/* + * Node.js Buffer.isBuffer() + */ + +#if defined(DUK_USE_BUFFEROBJECT_SUPPORT) +DUK_INTERNAL duk_ret_t duk_bi_nodejs_buffer_is_buffer(duk_context *ctx) { + duk_hthread *thr; + duk_tval *tv; + duk_hobject *h; + duk_hobject *h_proto; + duk_bool_t ret = 0; + + thr = (duk_hthread *) ctx; + + DUK_ASSERT(duk_get_top(ctx) >= 1); /* nargs */ + tv = duk_get_tval(ctx, 0); + DUK_ASSERT(tv != NULL); + + if (DUK_TVAL_IS_OBJECT(tv)) { + h = DUK_TVAL_GET_OBJECT(tv); + DUK_ASSERT(h != NULL); + + h_proto = thr->builtins[DUK_BIDX_NODEJS_BUFFER_PROTOTYPE]; + DUK_ASSERT(h_proto != NULL); + + h = DUK_HOBJECT_GET_PROTOTYPE(thr->heap, h); + if (h) { + ret = duk_hobject_prototype_chain_contains(thr, h, h_proto, 0 /*ignore_loop*/); + } + } + + duk_push_boolean(ctx, ret); + return 1; +} +#else /* DUK_USE_BUFFEROBJECT_SUPPORT */ +DUK_INTERNAL duk_ret_t duk_bi_nodejs_buffer_is_buffer(duk_context *ctx) { + DUK_UNREF(ctx); + return DUK_RET_UNSUPPORTED_ERROR; +} +#endif /* DUK_USE_BUFFEROBJECT_SUPPORT */ + +/* + * Node.js Buffer.byteLength() + */ + +#if defined(DUK_USE_BUFFEROBJECT_SUPPORT) +DUK_INTERNAL duk_ret_t duk_bi_nodejs_buffer_byte_length(duk_context *ctx) { + const char *str; + duk_size_t len; + + /* At the moment Buffer() will just use the string bytes as + * is (ignoring encoding), so we return the string length here + * unconditionally. + */ + + str = duk_to_lstring(ctx, 0, &len); + DUK_UNREF(str); + duk_push_size_t(ctx, len); + return 1; +} +#else /* DUK_USE_BUFFEROBJECT_SUPPORT */ +DUK_INTERNAL duk_ret_t duk_bi_nodejs_buffer_byte_length(duk_context *ctx) { + DUK_UNREF(ctx); + return DUK_RET_UNSUPPORTED_ERROR; +} +#endif /* DUK_USE_BUFFEROBJECT_SUPPORT */ + +/* + * Node.js Buffer.concat() + */ + +#if defined(DUK_USE_BUFFEROBJECT_SUPPORT) +DUK_INTERNAL duk_ret_t duk_bi_nodejs_buffer_concat(duk_context *ctx) { + duk_hthread *thr; + duk_hobject *h_arg; + duk_int_t total_length = 0; + duk_hbufferobject *h_bufobj; + duk_hbufferobject *h_bufres; + duk_hbuffer *h_val; + duk_uint_t i, n; + duk_uint8_t *p; + duk_size_t space_left; + duk_size_t copy_size; + + thr = (duk_hthread *) ctx; + DUK_UNREF(thr); + + /* Node.js accepts only actual Arrays. */ + h_arg = duk_require_hobject(ctx, 0); + if (DUK_HOBJECT_GET_CLASS_NUMBER(h_arg) != DUK_HOBJECT_CLASS_ARRAY) { + return DUK_RET_TYPE_ERROR; + } + + /* Compute result length and validate argument buffers. */ + n = (duk_uint_t) duk_get_length(ctx, 0); + for (i = 0; i < n; i++) { + /* Neutered checks not necessary here: neutered buffers have + * zero 'length' so we'll effectively skip them. + */ + DUK_ASSERT_TOP(ctx, 2); /* [ array totalLength ] */ + duk_get_prop_index(ctx, 0, (duk_uarridx_t) i); /* -> [ array totalLength buf ] */ + h_bufobj = duk__require_bufobj_value(ctx, 2); + DUK_ASSERT(h_bufobj != NULL); + total_length += h_bufobj->length; + duk_pop(ctx); + } + if (n == 1) { + /* For the case n==1 Node.js doesn't seem to type check + * the sole member but we do it before returning it. + * For this case only the original buffer object is + * returned (not a copy). + */ + duk_get_prop_index(ctx, 0, 0); + return 1; + } + + /* User totalLength overrides a computed length, but we'll check + * every copy in the copy loop. Note that duk_to_uint() can + * technically have arbitrary side effects so we need to recheck + * the buffers in the copy loop. + */ + if (!duk_is_undefined(ctx, 1) && n > 0) { + /* For n == 0, Node.js ignores totalLength argument and + * returns a zero length buffer. + */ + total_length = duk_to_int(ctx, 1); + } + if (total_length < 0) { + return DUK_RET_RANGE_ERROR; + } + + h_bufres = duk_push_bufferobject_raw(ctx, + DUK_HOBJECT_FLAG_EXTENSIBLE | + DUK_HOBJECT_FLAG_BUFFEROBJECT | + DUK_HOBJECT_CLASS_AS_FLAGS(DUK_HOBJECT_CLASS_BUFFER), + DUK_BIDX_NODEJS_BUFFER_PROTOTYPE); + DUK_ASSERT(h_bufres != NULL); + + p = (duk_uint8_t *) duk_push_fixed_buffer(ctx, total_length); + DUK_ASSERT(p != NULL); + space_left = total_length; + + for (i = 0; i < n; i++) { + DUK_ASSERT_TOP(ctx, 4); /* [ array totalLength bufres buf ] */ + + duk_get_prop_index(ctx, 0, (duk_uarridx_t) i); + h_bufobj = duk__require_bufobj_value(ctx, 4); + DUK_ASSERT(h_bufobj != NULL); + + copy_size = h_bufobj->length; + if (copy_size > space_left) { + copy_size = space_left; + } + + if (h_bufobj->buf != NULL && + DUK_HBUFFEROBJECT_VALID_SLICE(h_bufobj)) { + DUK_MEMCPY((void *) p, + (const void *) DUK_HBUFFEROBJECT_GET_SLICE_BASE(thr->heap, h_bufobj), + copy_size); + } else { + /* Just skip, leaving zeroes in the result. */ + ; + } + p += copy_size; + space_left -= copy_size; + + duk_pop(ctx); + } + + h_val = duk_get_hbuffer(ctx, -1); + DUK_ASSERT(h_val != NULL); + + duk__set_bufobj_buffer(ctx, h_bufres, h_val); + DUK_ASSERT_HBUFFEROBJECT_VALID(h_bufres); + + duk_pop(ctx); /* pop plain buffer, now reachable through h_bufres */ + + return 1; /* return h_bufres */ +} +#else /* DUK_USE_BUFFEROBJECT_SUPPORT */ +DUK_INTERNAL duk_ret_t duk_bi_nodejs_buffer_concat(duk_context *ctx) { + DUK_UNREF(ctx); + return DUK_RET_UNSUPPORTED_ERROR; +} +#endif /* DUK_USE_BUFFEROBJECT_SUPPORT */ + +/* + * Shared readfield and writefield methods + * + * The readfield/writefield methods need support for endianness and field + * types. All offsets are byte based so no offset shifting is needed. + */ + +#if defined(DUK_USE_BUFFEROBJECT_SUPPORT) +/* Format of magic, bits: + * 0...1: field type; 0=uint8, 1=uint16, 2=uint32, 3=float, 4=double, 5=unused, 6=unused, 7=unused + * 3: endianness: 0=little, 1=big + * 4: signed: 1=yes, 0=no + * 5: typedarray: 1=yes, 0=no + */ +#define DUK__FLD_8BIT 0 +#define DUK__FLD_16BIT 1 +#define DUK__FLD_32BIT 2 +#define DUK__FLD_FLOAT 3 +#define DUK__FLD_DOUBLE 4 +#define DUK__FLD_VARINT 5 +#define DUK__FLD_BIGENDIAN (1 << 3) +#define DUK__FLD_SIGNED (1 << 4) +#define DUK__FLD_TYPEDARRAY (1 << 5) + +/* XXX: split into separate functions for each field type? */ +DUK_INTERNAL duk_ret_t duk_bi_buffer_readfield(duk_context *ctx) { + duk_hthread *thr; + duk_small_int_t magic = (duk_small_int_t) duk_get_current_magic(ctx); + duk_small_int_t magic_ftype; + duk_small_int_t magic_bigendian; + duk_small_int_t magic_signed; + duk_small_int_t magic_typedarray; + duk_small_int_t endswap; + duk_hbufferobject *h_this; + duk_bool_t no_assert; + duk_int_t offset_signed; + duk_uint_t offset; + duk_uint_t buffer_length; + duk_uint_t check_length; + duk_uint8_t *buf; + duk_double_union du; + + thr = (duk_hthread *) ctx; + DUK_UNREF(thr); + + magic_ftype = magic & 0x0007; + magic_bigendian = magic & 0x0008; + magic_signed = magic & 0x0010; + magic_typedarray = magic & 0x0020; + + h_this = duk__require_bufobj_this(ctx); + DUK_ASSERT(h_this != NULL); + buffer_length = h_this->length; + + /* [ offset noAssert ], when ftype != DUK__FLD_VARINT */ + /* [ offset fieldByteLength noAssert ], when ftype == DUK__FLD_VARINT */ + /* [ offset littleEndian ], when DUK__FLD_TYPEDARRAY (regardless of ftype) */ + + /* Handle TypedArray vs. Node.js Buffer arg differences */ + if (magic_typedarray) { + no_assert = 0; +#if defined(DUK_USE_INTEGER_LE) + endswap = !duk_to_boolean(ctx, 1); /* 1=little endian */ +#else + endswap = duk_to_boolean(ctx, 1); /* 1=little endian */ +#endif + } else { + no_assert = duk_to_boolean(ctx, (magic_ftype == DUK__FLD_VARINT) ? 2 : 1); +#if defined(DUK_USE_INTEGER_LE) + endswap = magic_bigendian; +#else + endswap = !magic_bigendian; +#endif + } + + /* Offset is coerced first to signed integer range and then to unsigned. + * This ensures we can add a small byte length (1-8) to the offset in + * bound checks and not wrap. + */ + offset_signed = duk_to_int(ctx, 0); + offset = (duk_uint_t) offset_signed; + if (offset_signed < 0) { + goto fail_bounds; + } + + DUK_DDD(DUK_DDDPRINT("readfield, buffer_length=%ld, offset=%ld, no_assert=%d, " + "magic=%04x, magic_fieldtype=%d, magic_bigendian=%d, magic_signed=%d, " + "endswap=%d", + (long) buffer_length, (long) offset, (int) no_assert, + (unsigned int) magic, (int) magic_ftype, (int) (magic_bigendian >> 3), + (int) (magic_signed >> 4), (int) endswap)); + + /* Update 'buffer_length' to be the effective, safe limit which + * takes into account the underlying buffer. This value will be + * potentially invalidated by any side effect. + */ + check_length = DUK_HBUFFEROBJECT_CLAMP_BYTELENGTH(h_this, buffer_length); + DUK_DDD(DUK_DDDPRINT("buffer_length=%ld, check_length=%ld", + (long) buffer_length, (long) check_length)); + + if (h_this->buf) { + buf = DUK_HBUFFEROBJECT_GET_SLICE_BASE(thr->heap, h_this); + } else { + /* Neutered. We could go into the switch-case safely with + * buf == NULL because check_length == 0. To avoid scanbuild + * warnings, fail directly instead. + */ + DUK_ASSERT(check_length == 0); + goto fail_neutered; + } + DUK_ASSERT(buf != NULL); + + switch (magic_ftype) { + case DUK__FLD_8BIT: { + duk_uint8_t tmp; + if (offset + 1U > check_length) { + goto fail_bounds; + } + tmp = buf[offset]; + if (magic_signed) { + duk_push_int(ctx, (duk_int_t) ((duk_int8_t) tmp)); + } else { + duk_push_uint(ctx, (duk_uint_t) tmp); + } + break; + } + case DUK__FLD_16BIT: { + duk_uint16_t tmp; + if (offset + 2U > check_length) { + goto fail_bounds; + } + DUK_MEMCPY((void *) du.uc, (const void *) (buf + offset), 2); + tmp = du.us[0]; + if (endswap) { + tmp = DUK_BSWAP16(tmp); + } + if (magic_signed) { + duk_push_int(ctx, (duk_int_t) ((duk_int16_t) tmp)); + } else { + duk_push_uint(ctx, (duk_uint_t) tmp); + } + break; + } + case DUK__FLD_32BIT: { + duk_uint32_t tmp; + if (offset + 4U > check_length) { + goto fail_bounds; + } + DUK_MEMCPY((void *) du.uc, (const void *) (buf + offset), 4); + tmp = du.ui[0]; + if (endswap) { + tmp = DUK_BSWAP32(tmp); + } + if (magic_signed) { + duk_push_int(ctx, (duk_int_t) ((duk_int32_t) tmp)); + } else { + duk_push_uint(ctx, (duk_uint_t) tmp); + } + break; + } + case DUK__FLD_FLOAT: { + duk_uint32_t tmp; + if (offset + 4U > check_length) { + goto fail_bounds; + } + DUK_MEMCPY((void *) du.uc, (const void *) (buf + offset), 4); + if (endswap) { + tmp = du.ui[0]; + tmp = DUK_BSWAP32(tmp); + du.ui[0] = tmp; + } + duk_push_number(ctx, (duk_double_t) du.f[0]); + break; + } + case DUK__FLD_DOUBLE: { + if (offset + 8U > check_length) { + goto fail_bounds; + } + DUK_MEMCPY((void *) du.uc, (const void *) (buf + offset), 8); + if (endswap) { + DUK_DBLUNION_BSWAP64(&du); + } + duk_push_number(ctx, (duk_double_t) du.d); + break; + } + case DUK__FLD_VARINT: { + /* Node.js Buffer variable width integer field. We don't really + * care about speed here, so aim for shortest algorithm. + */ + duk_int_t field_bytelen; + duk_int_t i, i_step, i_end; +#if defined(DUK_USE_64BIT_OPS) + duk_int64_t tmp; + duk_small_uint_t shift_tmp; +#else + duk_double_t tmp; + duk_small_int_t highbyte; +#endif + const duk_uint8_t *p; + + field_bytelen = duk_get_int(ctx, 1); /* avoid side effects! */ + if (field_bytelen < 1 || field_bytelen > 6) { + goto fail_field_length; + } + if (offset + (duk_uint_t) field_bytelen > check_length) { + goto fail_bounds; + } + p = (const duk_uint8_t *) (buf + offset); + + /* Slow gathering of value using either 64-bit arithmetic + * or IEEE doubles if 64-bit types not available. Handling + * of negative numbers is a bit non-obvious in both cases. + */ + + if (magic_bigendian) { + /* Gather in big endian */ + i = 0; + i_step = 1; + i_end = field_bytelen; /* one i_step over */ + } else { + /* Gather in little endian */ + i = field_bytelen - 1; + i_step = -1; + i_end = -1; /* one i_step over */ + } + +#if defined(DUK_USE_64BIT_OPS) + tmp = 0; + do { + DUK_ASSERT(i >= 0 && i < field_bytelen); + tmp = (tmp << 8) + (duk_int64_t) p[i]; + i += i_step; + } while (i != i_end); + + if (magic_signed) { + /* Shift to sign extend. */ + shift_tmp = 64 - (field_bytelen * 8); + tmp = (tmp << shift_tmp) >> shift_tmp; + } + + duk_push_i64(ctx, tmp); +#else + highbyte = p[i]; + if (magic_signed && (highbyte & 0x80) != 0) { + /* 0xff => 255 - 256 = -1; 0x80 => 128 - 256 = -128 */ + tmp = (duk_double_t) (highbyte - 256); + } else { + tmp = (duk_double_t) highbyte; + } + for (;;) { + i += i_step; + if (i == i_end) { + break; + } + DUK_ASSERT(i >= 0 && i < field_bytelen); + tmp = (tmp * 256.0) + (duk_double_t) p[i]; + } + + duk_push_number(ctx, tmp); +#endif + break; + } + default: { /* should never happen but default here */ + goto fail_bounds; + } + } + + return 1; + + fail_neutered: + fail_field_length: + fail_bounds: + if (no_assert) { + /* Node.js return value for noAssert out-of-bounds reads is + * usually (but not always) NaN. Return NaN consistently. + */ + duk_push_nan(ctx); + return 1; + } + + return DUK_RET_RANGE_ERROR; +} +#else /* DUK_USE_BUFFEROBJECT_SUPPORT */ +DUK_INTERNAL duk_ret_t duk_bi_buffer_readfield(duk_context *ctx) { + DUK_UNREF(ctx); + return DUK_RET_UNSUPPORTED_ERROR; +} +#endif /* DUK_USE_BUFFEROBJECT_SUPPORT */ + +#if defined(DUK_USE_BUFFEROBJECT_SUPPORT) +/* XXX: split into separate functions for each field type? */ +DUK_INTERNAL duk_ret_t duk_bi_buffer_writefield(duk_context *ctx) { + duk_hthread *thr; + duk_small_int_t magic = (duk_small_int_t) duk_get_current_magic(ctx); + duk_small_int_t magic_ftype; + duk_small_int_t magic_bigendian; + duk_small_int_t magic_signed; + duk_small_int_t magic_typedarray; + duk_small_int_t endswap; + duk_hbufferobject *h_this; + duk_bool_t no_assert; + duk_int_t offset_signed; + duk_uint_t offset; + duk_uint_t buffer_length; + duk_uint_t check_length; + duk_uint8_t *buf; + duk_double_union du; + duk_int_t nbytes = 0; + + thr = (duk_hthread *) ctx; + DUK_UNREF(thr); + + magic_ftype = magic & 0x0007; + magic_bigendian = magic & 0x0008; + magic_signed = magic & 0x0010; + magic_typedarray = magic & 0x0020; + DUK_UNREF(magic_signed); + + h_this = duk__require_bufobj_this(ctx); + DUK_ASSERT(h_this != NULL); + buffer_length = h_this->length; + + /* [ value offset noAssert ], when ftype != DUK__FLD_VARINT */ + /* [ value offset fieldByteLength noAssert ], when ftype == DUK__FLD_VARINT */ + /* [ offset value littleEndian ], when DUK__FLD_TYPEDARRAY (regardless of ftype) */ + + /* Handle TypedArray vs. Node.js Buffer arg differences */ + if (magic_typedarray) { + no_assert = 0; +#if defined(DUK_USE_INTEGER_LE) + endswap = !duk_to_boolean(ctx, 2); /* 1=little endian */ +#else + endswap = duk_to_boolean(ctx, 2); /* 1=little endian */ +#endif + duk_swap(ctx, 0, 1); /* offset/value order different from Node.js */ + } else { + no_assert = duk_to_boolean(ctx, (magic_ftype == DUK__FLD_VARINT) ? 3 : 2); +#if defined(DUK_USE_INTEGER_LE) + endswap = magic_bigendian; +#else + endswap = !magic_bigendian; +#endif + } + + /* Offset is coerced first to signed integer range and then to unsigned. + * This ensures we can add a small byte length (1-8) to the offset in + * bound checks and not wrap. + */ + offset_signed = duk_to_int(ctx, 1); + offset = (duk_uint_t) offset_signed; + + /* We need 'nbytes' even for a failed offset; return value must be + * (offset + nbytes) even when write fails due to invalid offset. + */ + if (magic_ftype != DUK__FLD_VARINT) { + DUK_ASSERT(magic_ftype >= 0 && magic_ftype < (duk_small_int_t) (sizeof(duk__buffer_nbytes_from_fldtype) / sizeof(duk_uint8_t))); + nbytes = duk__buffer_nbytes_from_fldtype[magic_ftype]; + } else { + nbytes = duk_get_int(ctx, 2); + if (nbytes < 1 || nbytes > 6) { + goto fail_field_length; + } + } + DUK_ASSERT(nbytes >= 1 && nbytes <= 8); + + /* Now we can check offset validity. */ + if (offset_signed < 0) { + goto fail_bounds; + } + + DUK_DDD(DUK_DDDPRINT("writefield, value=%!T, buffer_length=%ld, offset=%ld, no_assert=%d, " + "magic=%04x, magic_fieldtype=%d, magic_bigendian=%d, magic_signed=%d, " + "endswap=%d", + duk_get_tval(ctx, 0), (long) buffer_length, (long) offset, (int) no_assert, + (unsigned int) magic, (int) magic_ftype, (int) (magic_bigendian >> 3), + (int) (magic_signed >> 4), (int) endswap)); + + /* Coerce value to a number before computing check_length, so that + * the field type specific coercion below can't have side effects + * that would invalidate check_length. + */ + duk_to_number(ctx, 0); + + /* Update 'buffer_length' to be the effective, safe limit which + * takes into account the underlying buffer. This value will be + * potentially invalidated by any side effect. + */ + check_length = DUK_HBUFFEROBJECT_CLAMP_BYTELENGTH(h_this, buffer_length); + DUK_DDD(DUK_DDDPRINT("buffer_length=%ld, check_length=%ld", + (long) buffer_length, (long) check_length)); + + if (h_this->buf) { + buf = DUK_HBUFFEROBJECT_GET_SLICE_BASE(thr->heap, h_this); + } else { + /* Neutered. We could go into the switch-case safely with + * buf == NULL because check_length == 0. To avoid scanbuild + * warnings, fail directly instead. + */ + DUK_ASSERT(check_length == 0); + goto fail_neutered; + } + DUK_ASSERT(buf != NULL); + + switch (magic_ftype) { + case DUK__FLD_8BIT: { + if (offset + 1U > check_length) { + goto fail_bounds; + } + /* sign doesn't matter when writing */ + buf[offset] = (duk_uint8_t) duk_to_uint32(ctx, 0); + break; + } + case DUK__FLD_16BIT: { + duk_uint16_t tmp; + if (offset + 2U > check_length) { + goto fail_bounds; + } + tmp = (duk_uint16_t) duk_to_uint32(ctx, 0); + if (endswap) { + tmp = DUK_BSWAP16(tmp); + } + du.us[0] = tmp; + /* sign doesn't matter when writing */ + DUK_MEMCPY((void *) (buf + offset), (const void *) du.uc, 2); + break; + } + case DUK__FLD_32BIT: { + duk_uint32_t tmp; + if (offset + 4U > check_length) { + goto fail_bounds; + } + tmp = (duk_uint32_t) duk_to_uint32(ctx, 0); + if (endswap) { + tmp = DUK_BSWAP32(tmp); + } + du.ui[0] = tmp; + /* sign doesn't matter when writing */ + DUK_MEMCPY((void *) (buf + offset), (const void *) du.uc, 4); + break; + } + case DUK__FLD_FLOAT: { + duk_uint32_t tmp; + if (offset + 4U > check_length) { + goto fail_bounds; + } + du.f[0] = (duk_float_t) duk_to_number(ctx, 0); + if (endswap) { + tmp = du.ui[0]; + tmp = DUK_BSWAP32(tmp); + du.ui[0] = tmp; + } + /* sign doesn't matter when writing */ + DUK_MEMCPY((void *) (buf + offset), (const void *) du.uc, 4); + break; + } + case DUK__FLD_DOUBLE: { + if (offset + 8U > check_length) { + goto fail_bounds; + } + du.d = (duk_double_t) duk_to_number(ctx, 0); + if (endswap) { + DUK_DBLUNION_BSWAP64(&du); + } + /* sign doesn't matter when writing */ + DUK_MEMCPY((void *) (buf + offset), (const void *) du.uc, 8); + break; + } + case DUK__FLD_VARINT: { + /* Node.js Buffer variable width integer field. We don't really + * care about speed here, so aim for shortest algorithm. + */ + duk_int_t field_bytelen; + duk_int_t i, i_step, i_end; +#if defined(DUK_USE_64BIT_OPS) + duk_int64_t tmp; +#else + duk_double_t tmp; +#endif + duk_uint8_t *p; + + field_bytelen = (duk_int_t) nbytes; + if (offset + (duk_uint_t) field_bytelen > check_length) { + goto fail_bounds; + } + + /* Slow writing of value using either 64-bit arithmetic + * or IEEE doubles if 64-bit types not available. There's + * no special sign handling when writing varints. + */ + + if (magic_bigendian) { + /* Write in big endian */ + i = field_bytelen; /* one i_step added at top of loop */ + i_step = -1; + i_end = 0; + } else { + /* Write in little endian */ + i = -1; /* one i_step added at top of loop */ + i_step = 1; + i_end = field_bytelen - 1; + } + + /* XXX: The duk_to_number() cast followed by integer coercion + * is platform specific so NaN, +/- Infinity, and out-of-bounds + * values result in platform specific output now. + * See: test-bi-nodejs-buffer-proto-varint-special.js + */ + +#if defined(DUK_USE_64BIT_OPS) + tmp = (duk_int64_t) duk_to_number(ctx, 0); + p = (duk_uint8_t *) (buf + offset); + do { + i += i_step; + DUK_ASSERT(i >= 0 && i < field_bytelen); + p[i] = (duk_uint8_t) (tmp & 0xff); + tmp = tmp >> 8; /* unnecessary shift for last byte */ + } while (i != i_end); +#else + tmp = duk_to_number(ctx, 0); + p = (duk_uint8_t *) (buf + offset); + do { + i += i_step; + tmp = DUK_FLOOR(tmp); + DUK_ASSERT(i >= 0 && i < field_bytelen); + p[i] = (duk_uint8_t) (DUK_FMOD(tmp, 256.0)); + tmp = tmp / 256.0; /* unnecessary div for last byte */ + } while (i != i_end); +#endif + break; + } + default: { /* should never happen but default here */ + goto fail_bounds; + } + } + + /* Node.js Buffer: return offset + #bytes written (i.e. next + * write offset). + */ + if (magic_typedarray) { + /* For TypedArrays 'undefined' return value is specified + * by ES6 (matches V8). + */ + return 0; + } + duk_push_uint(ctx, offset + nbytes); + return 1; + + fail_neutered: + fail_field_length: + fail_bounds: + if (no_assert) { + /* Node.js return value for failed writes is offset + #bytes + * that would have been written. + */ + /* XXX: for negative input offsets, 'offset' will be a large + * positive value so the result here is confusing. + */ + if (magic_typedarray) { + return 0; + } + duk_push_uint(ctx, offset + nbytes); + return 1; + } + return DUK_RET_RANGE_ERROR; +} +#else /* DUK_USE_BUFFEROBJECT_SUPPORT */ +DUK_INTERNAL duk_ret_t duk_bi_buffer_writefield(duk_context *ctx) { + DUK_UNREF(ctx); + return DUK_RET_UNSUPPORTED_ERROR; +} +#endif /* DUK_USE_BUFFEROBJECT_SUPPORT */ + +#undef DUK__FLD_8BIT +#undef DUK__FLD_16BIT +#undef DUK__FLD_32BIT +#undef DUK__FLD_FLOAT +#undef DUK__FLD_DOUBLE +#undef DUK__FLD_VARINT +#undef DUK__FLD_BIGENDIAN +#undef DUK__FLD_SIGNED +#undef DUK__FLD_TYPEDARRAY +#line 1 "duk_bi_date.c" +/* + * Date built-ins + * + * Unlike most built-ins, Date has some platform dependencies for getting + * UTC time, converting between UTC and local time, and parsing and + * formatting time values. These are all abstracted behind DUK_USE_xxx + * config options. There are built-in platform specific providers for + * POSIX and Windows, but external providers can also be used. + * + * See doc/datetime.rst. + * + */ + +/* include removed: duk_internal.h */ + +/* + * Forward declarations + */ + +DUK_LOCAL_DECL duk_double_t duk__push_this_get_timeval_tzoffset(duk_context *ctx, duk_small_uint_t flags, duk_int_t *out_tzoffset); +DUK_LOCAL_DECL duk_double_t duk__push_this_get_timeval(duk_context *ctx, duk_small_uint_t flags); +DUK_LOCAL_DECL void duk__twodigit_year_fixup(duk_context *ctx, duk_idx_t idx_val); +DUK_LOCAL_DECL duk_ret_t duk__set_this_timeval_from_dparts(duk_context *ctx, duk_double_t *dparts, duk_small_uint_t flags); + +/* + * Other file level defines + */ + +/* Debug macro to print all parts and dparts (used manually because of debug level). */ +#define DUK__DPRINT_PARTS_AND_DPARTS(parts,dparts) do { \ + DUK_D(DUK_DPRINT("parts: %ld %ld %ld %ld %ld %ld %ld %ld, dparts: %lf %lf %lf %lf %lf %lf %lf %lf", \ + (long) (parts)[0], (long) (parts)[1], \ + (long) (parts)[2], (long) (parts)[3], \ + (long) (parts)[4], (long) (parts)[5], \ + (long) (parts)[6], (long) (parts)[7], \ + (double) (dparts)[0], (double) (dparts)[1], \ + (double) (dparts)[2], (double) (dparts)[3], \ + (double) (dparts)[4], (double) (dparts)[5], \ + (double) (dparts)[6], (double) (dparts)[7])); \ + } while (0) +#define DUK__DPRINT_PARTS(parts) do { \ + DUK_D(DUK_DPRINT("parts: %ld %ld %ld %ld %ld %ld %ld %ld", \ + (long) (parts)[0], (long) (parts)[1], \ + (long) (parts)[2], (long) (parts)[3], \ + (long) (parts)[4], (long) (parts)[5], \ + (long) (parts)[6], (long) (parts)[7])); \ + } while (0) +#define DUK__DPRINT_DPARTS(dparts) do { \ + DUK_D(DUK_DPRINT("dparts: %lf %lf %lf %lf %lf %lf %lf %lf", \ + (double) (dparts)[0], (double) (dparts)[1], \ + (double) (dparts)[2], (double) (dparts)[3], \ + (double) (dparts)[4], (double) (dparts)[5], \ + (double) (dparts)[6], (double) (dparts)[7])); \ + } while (0) + +/* Equivalent year for DST calculations outside [1970,2038[ range, see + * E5 Section 15.9.1.8. Equivalent year has the same leap-year-ness and + * starts with the same weekday on Jan 1. + * https://bugzilla.mozilla.org/show_bug.cgi?id=351066 + */ +#define DUK__YEAR(x) ((duk_uint8_t) ((x) - 1970)) +DUK_LOCAL duk_uint8_t duk__date_equivyear[14] = { +#if 1 + /* This is based on V8 EquivalentYear() algorithm (see src/genequivyear.py): + * http://code.google.com/p/v8/source/browse/trunk/src/date.h#146 + */ + + /* non-leap year: sunday, monday, ... */ + DUK__YEAR(2023), DUK__YEAR(2035), DUK__YEAR(2019), DUK__YEAR(2031), + DUK__YEAR(2015), DUK__YEAR(2027), DUK__YEAR(2011), + + /* leap year: sunday, monday, ... */ + DUK__YEAR(2012), DUK__YEAR(2024), DUK__YEAR(2008), DUK__YEAR(2020), + DUK__YEAR(2032), DUK__YEAR(2016), DUK__YEAR(2028) +#endif + +#if 0 + /* This is based on Rhino EquivalentYear() algorithm: + * https://github.com/mozilla/rhino/blob/f99cc11d616f0cdda2c42bde72b3484df6182947/src/org/mozilla/javascript/NativeDate.java + */ + + /* non-leap year: sunday, monday, ... */ + DUK__YEAR(1978), DUK__YEAR(1973), DUK__YEAR(1985), DUK__YEAR(1986), + DUK__YEAR(1981), DUK__YEAR(1971), DUK__YEAR(1977), + + /* leap year: sunday, monday, ... */ + DUK__YEAR(1984), DUK__YEAR(1996), DUK__YEAR(1980), DUK__YEAR(1992), + DUK__YEAR(1976), DUK__YEAR(1988), DUK__YEAR(1972) +#endif +}; +#undef DUK__YEAR + +/* + * ISO 8601 subset parser. + */ + +/* Parser part count. */ +#define DUK__NUM_ISO8601_PARSER_PARTS 9 + +/* Parser part indices. */ +#define DUK__PI_YEAR 0 +#define DUK__PI_MONTH 1 +#define DUK__PI_DAY 2 +#define DUK__PI_HOUR 3 +#define DUK__PI_MINUTE 4 +#define DUK__PI_SECOND 5 +#define DUK__PI_MILLISECOND 6 +#define DUK__PI_TZHOUR 7 +#define DUK__PI_TZMINUTE 8 + +/* Parser part masks. */ +#define DUK__PM_YEAR (1 << DUK__PI_YEAR) +#define DUK__PM_MONTH (1 << DUK__PI_MONTH) +#define DUK__PM_DAY (1 << DUK__PI_DAY) +#define DUK__PM_HOUR (1 << DUK__PI_HOUR) +#define DUK__PM_MINUTE (1 << DUK__PI_MINUTE) +#define DUK__PM_SECOND (1 << DUK__PI_SECOND) +#define DUK__PM_MILLISECOND (1 << DUK__PI_MILLISECOND) +#define DUK__PM_TZHOUR (1 << DUK__PI_TZHOUR) +#define DUK__PM_TZMINUTE (1 << DUK__PI_TZMINUTE) + +/* Parser separator indices. */ +#define DUK__SI_PLUS 0 +#define DUK__SI_MINUS 1 +#define DUK__SI_T 2 +#define DUK__SI_SPACE 3 +#define DUK__SI_COLON 4 +#define DUK__SI_PERIOD 5 +#define DUK__SI_Z 6 +#define DUK__SI_NUL 7 + +/* Parser separator masks. */ +#define DUK__SM_PLUS (1 << DUK__SI_PLUS) +#define DUK__SM_MINUS (1 << DUK__SI_MINUS) +#define DUK__SM_T (1 << DUK__SI_T) +#define DUK__SM_SPACE (1 << DUK__SI_SPACE) +#define DUK__SM_COLON (1 << DUK__SI_COLON) +#define DUK__SM_PERIOD (1 << DUK__SI_PERIOD) +#define DUK__SM_Z (1 << DUK__SI_Z) +#define DUK__SM_NUL (1 << DUK__SI_NUL) + +/* Rule control flags. */ +#define DUK__CF_NEG (1 << 0) /* continue matching, set neg_tzoffset flag */ +#define DUK__CF_ACCEPT (1 << 1) /* accept string */ +#define DUK__CF_ACCEPT_NUL (1 << 2) /* accept string if next char is NUL (otherwise reject) */ + +#define DUK__PACK_RULE(partmask,sepmask,nextpart,flags) \ + ((duk_uint32_t) (partmask) + \ + (((duk_uint32_t) (sepmask)) << 9) + \ + (((duk_uint32_t) (nextpart)) << 17) + \ + (((duk_uint32_t) (flags)) << 21)) + +#define DUK__UNPACK_RULE(rule,var_nextidx,var_flags) do { \ + (var_nextidx) = (duk_small_uint_t) (((rule) >> 17) & 0x0f); \ + (var_flags) = (duk_small_uint_t) ((rule) >> 21); \ + } while (0) + +#define DUK__RULE_MASK_PART_SEP 0x1ffffUL + +/* Matching separator index is used in the control table */ +DUK_LOCAL const duk_uint8_t duk__parse_iso8601_seps[] = { + DUK_ASC_PLUS /*0*/, DUK_ASC_MINUS /*1*/, DUK_ASC_UC_T /*2*/, DUK_ASC_SPACE /*3*/, + DUK_ASC_COLON /*4*/, DUK_ASC_PERIOD /*5*/, DUK_ASC_UC_Z /*6*/, DUK_ASC_NUL /*7*/ +}; + +/* Rule table: first matching rule is used to determine what to do next. */ +DUK_LOCAL const duk_uint32_t duk__parse_iso8601_control[] = { + DUK__PACK_RULE(DUK__PM_YEAR, DUK__SM_MINUS, DUK__PI_MONTH, 0), + DUK__PACK_RULE(DUK__PM_MONTH, DUK__SM_MINUS, DUK__PI_DAY, 0), + DUK__PACK_RULE(DUK__PM_YEAR | DUK__PM_MONTH | DUK__PM_DAY, DUK__SM_T | DUK__SM_SPACE, DUK__PI_HOUR, 0), + DUK__PACK_RULE(DUK__PM_HOUR, DUK__SM_COLON, DUK__PI_MINUTE, 0), + DUK__PACK_RULE(DUK__PM_MINUTE, DUK__SM_COLON, DUK__PI_SECOND, 0), + DUK__PACK_RULE(DUK__PM_SECOND, DUK__SM_PERIOD, DUK__PI_MILLISECOND, 0), + DUK__PACK_RULE(DUK__PM_TZHOUR, DUK__SM_COLON, DUK__PI_TZMINUTE, 0), + DUK__PACK_RULE(DUK__PM_YEAR | DUK__PM_MONTH | DUK__PM_DAY | DUK__PM_HOUR /*Note1*/ | DUK__PM_MINUTE | DUK__PM_SECOND | DUK__PM_MILLISECOND, DUK__SM_PLUS, DUK__PI_TZHOUR, 0), + DUK__PACK_RULE(DUK__PM_YEAR | DUK__PM_MONTH | DUK__PM_DAY | DUK__PM_HOUR /*Note1*/ | DUK__PM_MINUTE | DUK__PM_SECOND | DUK__PM_MILLISECOND, DUK__SM_MINUS, DUK__PI_TZHOUR, DUK__CF_NEG), + DUK__PACK_RULE(DUK__PM_YEAR | DUK__PM_MONTH | DUK__PM_DAY | DUK__PM_HOUR /*Note1*/ | DUK__PM_MINUTE | DUK__PM_SECOND | DUK__PM_MILLISECOND, DUK__SM_Z, 0, DUK__CF_ACCEPT_NUL), + DUK__PACK_RULE(DUK__PM_YEAR | DUK__PM_MONTH | DUK__PM_DAY | DUK__PM_HOUR /*Note1*/ | DUK__PM_MINUTE | DUK__PM_SECOND | DUK__PM_MILLISECOND | DUK__PM_TZHOUR /*Note2*/ | DUK__PM_TZMINUTE, DUK__SM_NUL, 0, DUK__CF_ACCEPT) + + /* Note1: the specification doesn't require matching a time form with + * just hours ("HH"), but we accept it here, e.g. "2012-01-02T12Z". + * + * Note2: the specification doesn't require matching a timezone offset + * with just hours ("HH"), but accept it here, e.g. "2012-01-02T03:04:05+02" + */ +}; + +DUK_LOCAL duk_bool_t duk__parse_string_iso8601_subset(duk_context *ctx, const char *str) { + duk_int_t parts[DUK__NUM_ISO8601_PARSER_PARTS]; + duk_double_t dparts[DUK_DATE_IDX_NUM_PARTS]; + duk_double_t d; + const duk_uint8_t *p; + duk_small_uint_t part_idx = 0; + duk_int_t accum = 0; + duk_small_uint_t ndigits = 0; + duk_bool_t neg_year = 0; + duk_bool_t neg_tzoffset = 0; + duk_uint_fast8_t ch; + duk_small_uint_t i; + + /* During parsing, month and day are one-based; set defaults here. */ + DUK_MEMZERO(parts, sizeof(parts)); + DUK_ASSERT(parts[DUK_DATE_IDX_YEAR] == 0); /* don't care value, year is mandatory */ + parts[DUK_DATE_IDX_MONTH] = 1; + parts[DUK_DATE_IDX_DAY] = 1; + + /* Special handling for year sign. */ + p = (const duk_uint8_t *) str; + ch = p[0]; + if (ch == DUK_ASC_PLUS) { + p++; + } else if (ch == DUK_ASC_MINUS) { + neg_year = 1; + p++; + } + + for (;;) { + ch = *p++; + DUK_DDD(DUK_DDDPRINT("parsing, part_idx=%ld, char=%ld ('%c')", + (long) part_idx, (long) ch, + (int) ((ch >= 0x20 && ch <= 0x7e) ? ch : DUK_ASC_QUESTION))); + + if (ch >= DUK_ASC_0 && ch <= DUK_ASC_9) { + if (ndigits >= 9) { + DUK_DDD(DUK_DDDPRINT("too many digits -> reject")); + goto reject; + } + if (part_idx == DUK__PI_MILLISECOND /*msec*/ && ndigits >= 3) { + /* ignore millisecond fractions after 3 */ + } else { + accum = accum * 10 + ((duk_int_t) ch) - ((duk_int_t) DUK_ASC_0) + 0x00; + ndigits++; + } + } else { + duk_uint_fast32_t match_val; + duk_small_int_t sep_idx; + + if (ndigits <= 0) { + goto reject; + } + if (part_idx == DUK__PI_MILLISECOND) { + /* complete the millisecond field */ + while (ndigits < 3) { + accum *= 10; + ndigits++; + } + } + parts[part_idx] = accum; + DUK_DDD(DUK_DDDPRINT("wrote part %ld -> value %ld", (long) part_idx, (long) accum)); + + accum = 0; + ndigits = 0; + + for (i = 0; i < (duk_small_uint_t) (sizeof(duk__parse_iso8601_seps) / sizeof(duk_uint8_t)); i++) { + if (duk__parse_iso8601_seps[i] == ch) { + break; + } + } + if (i == (duk_small_uint_t) (sizeof(duk__parse_iso8601_seps) / sizeof(duk_uint8_t))) { + DUK_DDD(DUK_DDDPRINT("separator character doesn't match -> reject")); + goto reject; + } + + sep_idx = i; + match_val = (1UL << part_idx) + (1UL << (sep_idx + 9)); /* match against rule part/sep bits */ + + for (i = 0; i < (duk_small_uint_t) (sizeof(duk__parse_iso8601_control) / sizeof(duk_uint32_t)); i++) { + duk_uint_fast32_t rule = duk__parse_iso8601_control[i]; + duk_small_uint_t nextpart; + duk_small_uint_t cflags; + + DUK_DDD(DUK_DDDPRINT("part_idx=%ld, sep_idx=%ld, match_val=0x%08lx, considering rule=0x%08lx", + (long) part_idx, (long) sep_idx, + (unsigned long) match_val, (unsigned long) rule)); + + if ((rule & match_val) != match_val) { + continue; + } + + DUK__UNPACK_RULE(rule, nextpart, cflags); + + DUK_DDD(DUK_DDDPRINT("rule match -> part_idx=%ld, sep_idx=%ld, match_val=0x%08lx, " + "rule=0x%08lx -> nextpart=%ld, cflags=0x%02lx", + (long) part_idx, (long) sep_idx, + (unsigned long) match_val, (unsigned long) rule, + (long) nextpart, (unsigned long) cflags)); + + if (cflags & DUK__CF_NEG) { + neg_tzoffset = 1; + } + + if (cflags & DUK__CF_ACCEPT) { + goto accept; + } + + if (cflags & DUK__CF_ACCEPT_NUL) { + DUK_ASSERT(*(p - 1) != (char) 0); + if (*p == DUK_ASC_NUL) { + goto accept; + } + goto reject; + } + + part_idx = nextpart; + break; + } /* rule match */ + + if (i == (duk_small_uint_t) (sizeof(duk__parse_iso8601_control) / sizeof(duk_uint32_t))) { + DUK_DDD(DUK_DDDPRINT("no rule matches -> reject")); + goto reject; + } + + if (ch == 0) { + /* This shouldn't be necessary, but check just in case + * to avoid any chance of overruns. + */ + DUK_DDD(DUK_DDDPRINT("NUL after rule matching (should not happen) -> reject")); + goto reject; + } + } /* if-digit-else-ctrl */ + } /* char loop */ + + /* We should never exit the loop above. */ + DUK_UNREACHABLE(); + + reject: + DUK_DDD(DUK_DDDPRINT("reject")); + return 0; + + accept: + DUK_DDD(DUK_DDDPRINT("accept")); + + /* Apply timezone offset to get the main parts in UTC */ + if (neg_year) { + parts[DUK__PI_YEAR] = -parts[DUK__PI_YEAR]; + } + if (neg_tzoffset) { + parts[DUK__PI_HOUR] += parts[DUK__PI_TZHOUR]; + parts[DUK__PI_MINUTE] += parts[DUK__PI_TZMINUTE]; + } else { + parts[DUK__PI_HOUR] -= parts[DUK__PI_TZHOUR]; + parts[DUK__PI_MINUTE] -= parts[DUK__PI_TZMINUTE]; + } + parts[DUK__PI_MONTH] -= 1; /* zero-based month */ + parts[DUK__PI_DAY] -= 1; /* zero-based day */ + + /* Use double parts, they tolerate unnormalized time. + * + * Note: DUK_DATE_IDX_WEEKDAY is initialized with a bogus value (DUK__PI_TZHOUR) + * on purpose. It won't be actually used by duk_bi_date_get_timeval_from_dparts(), + * but will make the value initialized just in case, and avoid any + * potential for Valgrind issues. + */ + for (i = 0; i < DUK_DATE_IDX_NUM_PARTS; i++) { + DUK_DDD(DUK_DDDPRINT("part[%ld] = %ld", (long) i, (long) parts[i])); + dparts[i] = parts[i]; + } + + d = duk_bi_date_get_timeval_from_dparts(dparts, 0 /*flags*/); + duk_push_number(ctx, d); + return 1; +} + +/* + * Date/time parsing helper. + * + * Parse a datetime string into a time value. We must first try to parse + * the input according to the standard format in E5.1 Section 15.9.1.15. + * If that fails, we can try to parse using custom parsing, which can + * either be platform neutral (custom code) or platform specific (using + * existing platform API calls). + * + * Note in particular that we must parse whatever toString(), toUTCString(), + * and toISOString() can produce; see E5.1 Section 15.9.4.2. + * + * Returns 1 to allow tail calling. + * + * There is much room for improvement here with respect to supporting + * alternative datetime formats. For instance, V8 parses '2012-01-01' as + * UTC and '2012/01/01' as local time. + */ + +DUK_LOCAL duk_ret_t duk__parse_string(duk_context *ctx, const char *str) { + /* XXX: there is a small risk here: because the ISO 8601 parser is + * very loose, it may end up parsing some datetime values which + * would be better parsed with a platform specific parser. + */ + + DUK_ASSERT(str != NULL); + DUK_DDD(DUK_DDDPRINT("parse datetime from string '%s'", (const char *) str)); + + if (duk__parse_string_iso8601_subset(ctx, str) != 0) { + return 1; + } + +#if defined(DUK_USE_DATE_PARSE_STRING) + /* Contract, either: + * - Push value on stack and return 1 + * - Don't push anything on stack and return 0 + */ + + if (DUK_USE_DATE_PARSE_STRING(ctx, str) != 0) { + return 1; + } +#else + /* No platform-specific parsing, this is not an error. */ +#endif + + duk_push_nan(ctx); + return 1; +} + +/* + * Calendar helpers + * + * Some helpers are used for getters and can operate on normalized values + * which can be represented with 32-bit signed integers. Other helpers are + * needed by setters and operate on un-normalized double values, must watch + * out for non-finite numbers etc. + */ + +DUK_LOCAL duk_uint8_t duk__days_in_month[12] = { + (duk_uint8_t) 31, (duk_uint8_t) 28, (duk_uint8_t) 31, (duk_uint8_t) 30, + (duk_uint8_t) 31, (duk_uint8_t) 30, (duk_uint8_t) 31, (duk_uint8_t) 31, + (duk_uint8_t) 30, (duk_uint8_t) 31, (duk_uint8_t) 30, (duk_uint8_t) 31 +}; + +/* Maximum iteration count for computing UTC-to-local time offset when + * creating an Ecmascript time value from local parts. + */ +#define DUK__LOCAL_TZOFFSET_MAXITER 4 + +/* Because 'day since epoch' can be negative and is used to compute weekday + * using a modulo operation, add this multiple of 7 to avoid negative values + * when year is below 1970 epoch. Ecmascript time values are restricted to + * +/- 100 million days from epoch, so this adder fits nicely into 32 bits. + * Round to a multiple of 7 (= floor(100000000 / 7) * 7) and add margin. + */ +#define DUK__WEEKDAY_MOD_ADDER (20000000 * 7) /* 0x08583b00 */ + +DUK_INTERNAL duk_bool_t duk_bi_date_is_leap_year(duk_int_t year) { + if ((year % 4) != 0) { + return 0; + } + if ((year % 100) != 0) { + return 1; + } + if ((year % 400) != 0) { + return 0; + } + return 1; +} + +DUK_INTERNAL duk_bool_t duk_bi_date_timeval_in_valid_range(duk_double_t x) { + return (x >= -DUK_DATE_MSEC_100M_DAYS && x <= DUK_DATE_MSEC_100M_DAYS); +} + +DUK_INTERNAL duk_bool_t duk_bi_date_timeval_in_leeway_range(duk_double_t x) { + return (x >= -DUK_DATE_MSEC_100M_DAYS_LEEWAY && x <= DUK_DATE_MSEC_100M_DAYS_LEEWAY); +} + +DUK_INTERNAL duk_bool_t duk_bi_date_year_in_valid_range(duk_double_t x) { + return (x >= DUK_DATE_MIN_ECMA_YEAR && x <= DUK_DATE_MAX_ECMA_YEAR); +} + +DUK_LOCAL duk_double_t duk__timeclip(duk_double_t x) { + if (!DUK_ISFINITE(x)) { + return DUK_DOUBLE_NAN; + } + + if (!duk_bi_date_timeval_in_valid_range(x)) { + return DUK_DOUBLE_NAN; + } + + x = duk_js_tointeger_number(x); + + /* Here we'd have the option to normalize -0 to +0. */ + return x; +} + +/* Integer division which floors also negative values correctly. */ +DUK_LOCAL duk_int_t duk__div_floor(duk_int_t a, duk_int_t b) { + DUK_ASSERT(b > 0); + if (a >= 0) { + return a / b; + } else { + /* e.g. a = -4, b = 5 --> -4 - 5 + 1 / 5 --> -8 / 5 --> -1 + * a = -5, b = 5 --> -5 - 5 + 1 / 5 --> -9 / 5 --> -1 + * a = -6, b = 5 --> -6 - 5 + 1 / 5 --> -10 / 5 --> -2 + */ + return (a - b + 1) / b; + } +} + +/* Compute day number of the first day of a given year. */ +DUK_LOCAL duk_int_t duk__day_from_year(duk_int_t year) { + /* Note: in integer arithmetic, (x / 4) is same as floor(x / 4) for non-negative + * values, but is incorrect for negative ones. + */ + return 365 * (year - 1970) + + duk__div_floor(year - 1969, 4) + - duk__div_floor(year - 1901, 100) + + duk__div_floor(year - 1601, 400); +} + +/* Given a day number, determine year and day-within-year. */ +DUK_LOCAL duk_int_t duk__year_from_day(duk_int_t day, duk_small_int_t *out_day_within_year) { + duk_int_t year; + duk_int_t diff_days; + + /* estimate year upwards (towards positive infinity), then back down; + * two iterations should be enough + */ + + if (day >= 0) { + year = 1970 + day / 365; + } else { + year = 1970 + day / 366; + } + + for (;;) { + diff_days = duk__day_from_year(year) - day; + DUK_DDD(DUK_DDDPRINT("year=%ld day=%ld, diff_days=%ld", (long) year, (long) day, (long) diff_days)); + if (diff_days <= 0) { + DUK_ASSERT(-diff_days < 366); /* fits into duk_small_int_t */ + *out_day_within_year = -diff_days; + DUK_DDD(DUK_DDDPRINT("--> year=%ld, day-within-year=%ld", + (long) year, (long) *out_day_within_year)); + DUK_ASSERT(*out_day_within_year >= 0); + DUK_ASSERT(*out_day_within_year < (duk_bi_date_is_leap_year(year) ? 366 : 365)); + return year; + } + + /* Note: this is very tricky; we must never 'overshoot' the + * correction downwards. + */ + year -= 1 + (diff_days - 1) / 366; /* conservative */ + } +} + +/* Given a (year, month, day-within-month) triple, compute day number. + * The input triple is un-normalized and may contain non-finite values. + */ +DUK_LOCAL duk_double_t duk__make_day(duk_double_t year, duk_double_t month, duk_double_t day) { + duk_int_t day_num; + duk_bool_t is_leap; + duk_small_int_t i, n; + + /* Assume that year, month, day are all coerced to whole numbers. + * They may also be NaN or infinity, in which case this function + * must return NaN or infinity to ensure time value becomes NaN. + * If 'day' is NaN, the final return will end up returning a NaN, + * so it doesn't need to be checked here. + */ + + if (!DUK_ISFINITE(year) || !DUK_ISFINITE(month)) { + return DUK_DOUBLE_NAN; + } + + year += DUK_FLOOR(month / 12.0); + + month = DUK_FMOD(month, 12.0); + if (month < 0.0) { + /* handle negative values */ + month += 12.0; + } + + /* The algorithm in E5.1 Section 15.9.1.12 normalizes month, but + * does not normalize the day-of-month (nor check whether or not + * it is finite) because it's not necessary for finding the day + * number which matches the (year,month) pair. + * + * We assume that duk__day_from_year() is exact here. + * + * Without an explicit infinity / NaN check in the beginning, + * day_num would be a bogus integer here. + * + * It's possible for 'year' to be out of integer range here. + * If so, we need to return NaN without integer overflow. + * This fixes test-bug-setyear-overflow.js. + */ + + if (!duk_bi_date_year_in_valid_range(year)) { + DUK_DD(DUK_DDPRINT("year not in ecmascript valid range, avoid integer overflow: %lf", (double) year)); + return DUK_DOUBLE_NAN; + } + day_num = duk__day_from_year((duk_int_t) year); + is_leap = duk_bi_date_is_leap_year((duk_int_t) year); + + n = (duk_small_int_t) month; + for (i = 0; i < n; i++) { + day_num += duk__days_in_month[i]; + if (i == 1 && is_leap) { + day_num++; + } + } + + /* If 'day' is NaN, returns NaN. */ + return (duk_double_t) day_num + day; +} + +/* Split time value into parts. The time value is assumed to be an internal + * one, i.e. finite, no fractions. Possible local time adjustment has already + * been applied when reading the time value. + */ +DUK_INTERNAL void duk_bi_date_timeval_to_parts(duk_double_t d, duk_int_t *parts, duk_double_t *dparts, duk_small_uint_t flags) { + duk_double_t d1, d2; + duk_int_t t1, t2; + duk_int_t day_since_epoch; + duk_int_t year; /* does not fit into 16 bits */ + duk_small_int_t day_in_year; + duk_small_int_t month; + duk_small_int_t day; + duk_small_int_t dim; + duk_int_t jan1_since_epoch; + duk_small_int_t jan1_weekday; + duk_int_t equiv_year; + duk_small_uint_t i; + duk_bool_t is_leap; + duk_small_int_t arridx; + + DUK_ASSERT(DUK_ISFINITE(d)); /* caller checks */ + DUK_ASSERT(DUK_FLOOR(d) == d); /* no fractions in internal time */ + + /* The timevalue must be in valid Ecmascript range, but since a local + * time offset can be applied, we need to allow a +/- 24h leeway to + * the value. In other words, although the UTC time is within the + * Ecmascript range, the local part values can be just outside of it. + */ + DUK_UNREF(duk_bi_date_timeval_in_leeway_range); + DUK_ASSERT(duk_bi_date_timeval_in_leeway_range(d)); + + /* these computations are guaranteed to be exact for the valid + * E5 time value range, assuming milliseconds without fractions. + */ + d1 = (duk_double_t) DUK_FMOD(d, (double) DUK_DATE_MSEC_DAY); + if (d1 < 0.0) { + /* deal with negative values */ + d1 += (duk_double_t) DUK_DATE_MSEC_DAY; + } + d2 = DUK_FLOOR((double) (d / (duk_double_t) DUK_DATE_MSEC_DAY)); + DUK_ASSERT(d2 * ((duk_double_t) DUK_DATE_MSEC_DAY) + d1 == d); + /* now expected to fit into a 32-bit integer */ + t1 = (duk_int_t) d1; + t2 = (duk_int_t) d2; + day_since_epoch = t2; + DUK_ASSERT((duk_double_t) t1 == d1); + DUK_ASSERT((duk_double_t) t2 == d2); + + /* t1 = milliseconds within day (fits 32 bit) + * t2 = day number from epoch (fits 32 bit, may be negative) + */ + + parts[DUK_DATE_IDX_MILLISECOND] = t1 % 1000; t1 /= 1000; + parts[DUK_DATE_IDX_SECOND] = t1 % 60; t1 /= 60; + parts[DUK_DATE_IDX_MINUTE] = t1 % 60; t1 /= 60; + parts[DUK_DATE_IDX_HOUR] = t1; + DUK_ASSERT(parts[DUK_DATE_IDX_MILLISECOND] >= 0 && parts[DUK_DATE_IDX_MILLISECOND] <= 999); + DUK_ASSERT(parts[DUK_DATE_IDX_SECOND] >= 0 && parts[DUK_DATE_IDX_SECOND] <= 59); + DUK_ASSERT(parts[DUK_DATE_IDX_MINUTE] >= 0 && parts[DUK_DATE_IDX_MINUTE] <= 59); + DUK_ASSERT(parts[DUK_DATE_IDX_HOUR] >= 0 && parts[DUK_DATE_IDX_HOUR] <= 23); + + DUK_DDD(DUK_DDDPRINT("d=%lf, d1=%lf, d2=%lf, t1=%ld, t2=%ld, parts: hour=%ld min=%ld sec=%ld msec=%ld", + (double) d, (double) d1, (double) d2, (long) t1, (long) t2, + (long) parts[DUK_DATE_IDX_HOUR], + (long) parts[DUK_DATE_IDX_MINUTE], + (long) parts[DUK_DATE_IDX_SECOND], + (long) parts[DUK_DATE_IDX_MILLISECOND])); + + /* This assert depends on the input parts representing time inside + * the Ecmascript range. + */ + DUK_ASSERT(t2 + DUK__WEEKDAY_MOD_ADDER >= 0); + parts[DUK_DATE_IDX_WEEKDAY] = (t2 + 4 + DUK__WEEKDAY_MOD_ADDER) % 7; /* E5.1 Section 15.9.1.6 */ + DUK_ASSERT(parts[DUK_DATE_IDX_WEEKDAY] >= 0 && parts[DUK_DATE_IDX_WEEKDAY] <= 6); + + year = duk__year_from_day(t2, &day_in_year); + day = day_in_year; + is_leap = duk_bi_date_is_leap_year(year); + for (month = 0; month < 12; month++) { + dim = duk__days_in_month[month]; + if (month == 1 && is_leap) { + dim++; + } + DUK_DDD(DUK_DDDPRINT("month=%ld, dim=%ld, day=%ld", + (long) month, (long) dim, (long) day)); + if (day < dim) { + break; + } + day -= dim; + } + DUK_DDD(DUK_DDDPRINT("final month=%ld", (long) month)); + DUK_ASSERT(month >= 0 && month <= 11); + DUK_ASSERT(day >= 0 && day <= 31); + + /* Equivalent year mapping, used to avoid DST trouble when platform + * may fail to provide reasonable DST answers for dates outside the + * ordinary range (e.g. 1970-2038). An equivalent year has the same + * leap-year-ness as the original year and begins on the same weekday + * (Jan 1). + * + * The year 2038 is avoided because there seem to be problems with it + * on some platforms. The year 1970 is also avoided as there were + * practical problems with it; an equivalent year is used for it too, + * which breaks some DST computations for 1970 right now, see e.g. + * test-bi-date-tzoffset-brute-fi.js. + */ + if ((flags & DUK_DATE_FLAG_EQUIVYEAR) && (year < 1971 || year > 2037)) { + DUK_ASSERT(is_leap == 0 || is_leap == 1); + + jan1_since_epoch = day_since_epoch - day_in_year; /* day number for Jan 1 since epoch */ + DUK_ASSERT(jan1_since_epoch + DUK__WEEKDAY_MOD_ADDER >= 0); + jan1_weekday = (jan1_since_epoch + 4 + DUK__WEEKDAY_MOD_ADDER) % 7; /* E5.1 Section 15.9.1.6 */ + DUK_ASSERT(jan1_weekday >= 0 && jan1_weekday <= 6); + arridx = jan1_weekday; + if (is_leap) { + arridx += 7; + } + DUK_ASSERT(arridx >= 0 && arridx < (duk_small_int_t) (sizeof(duk__date_equivyear) / sizeof(duk_uint8_t))); + + equiv_year = (duk_int_t) duk__date_equivyear[arridx] + 1970; + year = equiv_year; + DUK_DDD(DUK_DDDPRINT("equiv year mapping, year=%ld, day_in_year=%ld, day_since_epoch=%ld, " + "jan1_since_epoch=%ld, jan1_weekday=%ld -> equiv year %ld", + (long) year, (long) day_in_year, (long) day_since_epoch, + (long) jan1_since_epoch, (long) jan1_weekday, (long) equiv_year)); + } + + parts[DUK_DATE_IDX_YEAR] = year; + parts[DUK_DATE_IDX_MONTH] = month; + parts[DUK_DATE_IDX_DAY] = day; + + if (flags & DUK_DATE_FLAG_ONEBASED) { + parts[DUK_DATE_IDX_MONTH]++; /* zero-based -> one-based */ + parts[DUK_DATE_IDX_DAY]++; /* -""- */ + } + + if (dparts != NULL) { + for (i = 0; i < DUK_DATE_IDX_NUM_PARTS; i++) { + dparts[i] = (duk_double_t) parts[i]; + } + } +} + +/* Compute time value from (double) parts. The parts can be either UTC + * or local time; if local, they need to be (conceptually) converted into + * UTC time. The parts may represent valid or invalid time, and may be + * wildly out of range (but may cancel each other and still come out in + * the valid Date range). + */ +DUK_INTERNAL duk_double_t duk_bi_date_get_timeval_from_dparts(duk_double_t *dparts, duk_small_uint_t flags) { +#if defined(DUK_USE_PARANOID_DATE_COMPUTATION) + /* See comments below on MakeTime why these are volatile. */ + volatile duk_double_t tmp_time; + volatile duk_double_t tmp_day; + volatile duk_double_t d; +#else + duk_double_t tmp_time; + duk_double_t tmp_day; + duk_double_t d; +#endif + duk_small_uint_t i; + duk_int_t tzoff, tzoffprev1, tzoffprev2; + + /* Expects 'this' at top of stack on entry. */ + + /* Coerce all finite parts with ToInteger(). ToInteger() must not + * be called for NaN/Infinity because it will convert e.g. NaN to + * zero. If ToInteger() has already been called, this has no side + * effects and is idempotent. + * + * Don't read dparts[DUK_DATE_IDX_WEEKDAY]; it will cause Valgrind + * issues if the value is uninitialized. + */ + for (i = 0; i <= DUK_DATE_IDX_MILLISECOND; i++) { + /* SCANBUILD: scan-build complains here about assigned value + * being garbage or undefined. This is correct but operating + * on undefined values has no ill effect and is ignored by the + * caller in the case where this happens. + */ + d = dparts[i]; + if (DUK_ISFINITE(d)) { + dparts[i] = duk_js_tointeger_number(d); + } + } + + /* Use explicit steps in computation to try to ensure that + * computation happens with intermediate results coerced to + * double values (instead of using something more accurate). + * E.g. E5.1 Section 15.9.1.11 requires use of IEEE 754 + * rules (= Ecmascript '+' and '*' operators). + * + * Without 'volatile' even this approach fails on some platform + * and compiler combinations. For instance, gcc 4.8.1 on Ubuntu + * 64-bit, with -m32 and without -std=c99, test-bi-date-canceling.js + * would fail because of some optimizations when computing tmp_time + * (MakeTime below). Adding 'volatile' to tmp_time solved this + * particular problem (annoyingly, also adding debug prints or + * running the executable under valgrind hides it). + */ + + /* MakeTime */ + tmp_time = 0.0; + tmp_time += dparts[DUK_DATE_IDX_HOUR] * ((duk_double_t) DUK_DATE_MSEC_HOUR); + tmp_time += dparts[DUK_DATE_IDX_MINUTE] * ((duk_double_t) DUK_DATE_MSEC_MINUTE); + tmp_time += dparts[DUK_DATE_IDX_SECOND] * ((duk_double_t) DUK_DATE_MSEC_SECOND); + tmp_time += dparts[DUK_DATE_IDX_MILLISECOND]; + + /* MakeDay */ + tmp_day = duk__make_day(dparts[DUK_DATE_IDX_YEAR], dparts[DUK_DATE_IDX_MONTH], dparts[DUK_DATE_IDX_DAY]); + + /* MakeDate */ + d = tmp_day * ((duk_double_t) DUK_DATE_MSEC_DAY) + tmp_time; + + DUK_DDD(DUK_DDDPRINT("time=%lf day=%lf --> timeval=%lf", + (double) tmp_time, (double) tmp_day, (double) d)); + + /* Optional UTC conversion. */ + if (flags & DUK_DATE_FLAG_LOCALTIME) { + /* DUK_USE_DATE_GET_LOCAL_TZOFFSET() needs to be called with a + * time value computed from UTC parts. At this point we only + * have 'd' which is a time value computed from local parts, so + * it is off by the UTC-to-local time offset which we don't know + * yet. The current solution for computing the UTC-to-local + * time offset is to iterate a few times and detect a fixed + * point or a two-cycle loop (or a sanity iteration limit), + * see test-bi-date-local-parts.js and test-bi-date-tzoffset-basic-fi.js. + * + * E5.1 Section 15.9.1.9: + * UTC(t) = t - LocalTZA - DaylightSavingTA(t - LocalTZA) + * + * For NaN/inf, DUK_USE_DATE_GET_LOCAL_TZOFFSET() returns 0. + */ + +#if 0 + /* Old solution: don't iterate, incorrect */ + tzoff = DUK_USE_DATE_GET_LOCAL_TZOFFSET(d); + DUK_DDD(DUK_DDDPRINT("tzoffset w/o iteration, tzoff=%ld", (long) tzoff)); + d -= tzoff * 1000L; + DUK_UNREF(tzoffprev1); + DUK_UNREF(tzoffprev2); +#endif + + /* Iteration solution */ + tzoff = 0; + tzoffprev1 = 999999999L; /* invalid value which never matches */ + for (i = 0; i < DUK__LOCAL_TZOFFSET_MAXITER; i++) { + tzoffprev2 = tzoffprev1; + tzoffprev1 = tzoff; + tzoff = DUK_USE_DATE_GET_LOCAL_TZOFFSET(d - tzoff * 1000L); + DUK_DDD(DUK_DDDPRINT("tzoffset iteration, i=%d, tzoff=%ld, tzoffprev1=%ld tzoffprev2=%ld", + (int) i, (long) tzoff, (long) tzoffprev1, (long) tzoffprev2)); + if (tzoff == tzoffprev1) { + DUK_DDD(DUK_DDDPRINT("tzoffset iteration finished, i=%d, tzoff=%ld, tzoffprev1=%ld, tzoffprev2=%ld", + (int) i, (long) tzoff, (long) tzoffprev1, (long) tzoffprev2)); + break; + } else if (tzoff == tzoffprev2) { + /* Two value cycle, see e.g. test-bi-date-tzoffset-basic-fi.js. + * In these cases, favor a higher tzoffset to get a consistent + * result which is independent of iteration count. Not sure if + * this is a generically correct solution. + */ + DUK_DDD(DUK_DDDPRINT("tzoffset iteration two-value cycle, i=%d, tzoff=%ld, tzoffprev1=%ld, tzoffprev2=%ld", + (int) i, (long) tzoff, (long) tzoffprev1, (long) tzoffprev2)); + if (tzoffprev1 > tzoff) { + tzoff = tzoffprev1; + } + break; + } + } + DUK_DDD(DUK_DDDPRINT("tzoffset iteration, tzoff=%ld", (long) tzoff)); + d -= tzoff * 1000L; + } + + /* TimeClip(), which also handles Infinity -> NaN conversion */ + d = duk__timeclip(d); + + return d; +} + +/* + * API oriented helpers + */ + +/* Push 'this' binding, check that it is a Date object; then push the + * internal time value. At the end, stack is: [ ... this timeval ]. + * Returns the time value. Local time adjustment is done if requested. + */ +DUK_LOCAL duk_double_t duk__push_this_get_timeval_tzoffset(duk_context *ctx, duk_small_uint_t flags, duk_int_t *out_tzoffset) { + duk_hthread *thr = (duk_hthread *) ctx; + duk_hobject *h; + duk_double_t d; + duk_int_t tzoffset = 0; + + duk_push_this(ctx); + h = duk_get_hobject(ctx, -1); /* XXX: getter with class check, useful in built-ins */ + if (h == NULL || DUK_HOBJECT_GET_CLASS_NUMBER(h) != DUK_HOBJECT_CLASS_DATE) { + DUK_ERROR_TYPE(thr, "expected Date"); + } + + duk_get_prop_stridx(ctx, -1, DUK_STRIDX_INT_VALUE); + d = duk_to_number(ctx, -1); + duk_pop(ctx); + + if (DUK_ISNAN(d)) { + if (flags & DUK_DATE_FLAG_NAN_TO_ZERO) { + d = 0.0; + } + if (flags & DUK_DATE_FLAG_NAN_TO_RANGE_ERROR) { + DUK_ERROR_RANGE(thr, "Invalid Date"); + } + } + /* if no NaN handling flag, may still be NaN here, but not Inf */ + DUK_ASSERT(!DUK_ISINF(d)); + + if (flags & DUK_DATE_FLAG_LOCALTIME) { + /* Note: DST adjustment is determined using UTC time. + * If 'd' is NaN, tzoffset will be 0. + */ + tzoffset = DUK_USE_DATE_GET_LOCAL_TZOFFSET(d); /* seconds */ + d += tzoffset * 1000L; + } + if (out_tzoffset) { + *out_tzoffset = tzoffset; + } + + /* [ ... this ] */ + return d; +} + +DUK_LOCAL duk_double_t duk__push_this_get_timeval(duk_context *ctx, duk_small_uint_t flags) { + return duk__push_this_get_timeval_tzoffset(ctx, flags, NULL); +} + +/* Set timeval to 'this' from dparts, push the new time value onto the + * value stack and return 1 (caller can then tail call us). Expects + * the value stack to contain 'this' on the stack top. + */ +DUK_LOCAL duk_ret_t duk__set_this_timeval_from_dparts(duk_context *ctx, duk_double_t *dparts, duk_small_uint_t flags) { + duk_double_t d; + + /* [ ... this ] */ + + d = duk_bi_date_get_timeval_from_dparts(dparts, flags); + duk_push_number(ctx, d); /* -> [ ... this timeval_new ] */ + duk_dup_top(ctx); /* -> [ ... this timeval_new timeval_new ] */ + duk_put_prop_stridx(ctx, -3, DUK_STRIDX_INT_VALUE); + + /* stack top: new time value, return 1 to allow tail calls */ + return 1; +} + +/* 'out_buf' must be at least DUK_BI_DATE_ISO8601_BUFSIZE long. */ +DUK_LOCAL void duk__format_parts_iso8601(duk_int_t *parts, duk_int_t tzoffset, duk_small_uint_t flags, duk_uint8_t *out_buf) { + char yearstr[8]; /* "-123456\0" */ + char tzstr[8]; /* "+11:22\0" */ + char sep = (flags & DUK_DATE_FLAG_SEP_T) ? DUK_ASC_UC_T : DUK_ASC_SPACE; + + DUK_ASSERT(parts[DUK_DATE_IDX_MONTH] >= 1 && parts[DUK_DATE_IDX_MONTH] <= 12); + DUK_ASSERT(parts[DUK_DATE_IDX_DAY] >= 1 && parts[DUK_DATE_IDX_DAY] <= 31); + DUK_ASSERT(parts[DUK_DATE_IDX_YEAR] >= -999999 && parts[DUK_DATE_IDX_YEAR] <= 999999); + + /* Note: %06d for positive value, %07d for negative value to include + * sign and 6 digits. + */ + DUK_SNPRINTF(yearstr, + sizeof(yearstr), + (parts[DUK_DATE_IDX_YEAR] >= 0 && parts[DUK_DATE_IDX_YEAR] <= 9999) ? "%04ld" : + ((parts[DUK_DATE_IDX_YEAR] >= 0) ? "+%06ld" : "%07ld"), + (long) parts[DUK_DATE_IDX_YEAR]); + yearstr[sizeof(yearstr) - 1] = (char) 0; + + if (flags & DUK_DATE_FLAG_LOCALTIME) { + /* tzoffset seconds are dropped; 16 bits suffice for + * time offset in minutes + */ + if (tzoffset >= 0) { + duk_small_int_t tmp = tzoffset / 60; + DUK_SNPRINTF(tzstr, sizeof(tzstr), "+%02d:%02d", (int) (tmp / 60), (int) (tmp % 60)); + } else { + duk_small_int_t tmp = -tzoffset / 60; + DUK_SNPRINTF(tzstr, sizeof(tzstr), "-%02d:%02d", (int) (tmp / 60), (int) (tmp % 60)); + } + tzstr[sizeof(tzstr) - 1] = (char) 0; + } else { + tzstr[0] = DUK_ASC_UC_Z; + tzstr[1] = (char) 0; + } + + /* Unlike year, the other parts fit into 16 bits so %d format + * is portable. + */ + if ((flags & DUK_DATE_FLAG_TOSTRING_DATE) && (flags & DUK_DATE_FLAG_TOSTRING_TIME)) { + DUK_SPRINTF((char *) out_buf, "%s-%02d-%02d%c%02d:%02d:%02d.%03d%s", + (const char *) yearstr, (int) parts[DUK_DATE_IDX_MONTH], (int) parts[DUK_DATE_IDX_DAY], (int) sep, + (int) parts[DUK_DATE_IDX_HOUR], (int) parts[DUK_DATE_IDX_MINUTE], + (int) parts[DUK_DATE_IDX_SECOND], (int) parts[DUK_DATE_IDX_MILLISECOND], (const char *) tzstr); + } else if (flags & DUK_DATE_FLAG_TOSTRING_DATE) { + DUK_SPRINTF((char *) out_buf, "%s-%02d-%02d", + (const char *) yearstr, (int) parts[DUK_DATE_IDX_MONTH], (int) parts[DUK_DATE_IDX_DAY]); + } else { + DUK_ASSERT(flags & DUK_DATE_FLAG_TOSTRING_TIME); + DUK_SPRINTF((char *) out_buf, "%02d:%02d:%02d.%03d%s", + (int) parts[DUK_DATE_IDX_HOUR], (int) parts[DUK_DATE_IDX_MINUTE], + (int) parts[DUK_DATE_IDX_SECOND], (int) parts[DUK_DATE_IDX_MILLISECOND], + (const char *) tzstr); + } +} + +/* Helper for string conversion calls: check 'this' binding, get the + * internal time value, and format date and/or time in a few formats. + * Return value allows tail calls. + */ +DUK_LOCAL duk_ret_t duk__to_string_helper(duk_context *ctx, duk_small_uint_t flags) { + duk_double_t d; + duk_int_t parts[DUK_DATE_IDX_NUM_PARTS]; + duk_int_t tzoffset; /* seconds, doesn't fit into 16 bits */ + duk_bool_t rc; + duk_uint8_t buf[DUK_BI_DATE_ISO8601_BUFSIZE]; + + DUK_UNREF(rc); /* unreferenced with some options */ + + d = duk__push_this_get_timeval_tzoffset(ctx, flags, &tzoffset); + if (DUK_ISNAN(d)) { + duk_push_hstring_stridx(ctx, DUK_STRIDX_INVALID_DATE); + return 1; + } + DUK_ASSERT(DUK_ISFINITE(d)); + + /* formatters always get one-based month/day-of-month */ + duk_bi_date_timeval_to_parts(d, parts, NULL, DUK_DATE_FLAG_ONEBASED); + DUK_ASSERT(parts[DUK_DATE_IDX_MONTH] >= 1 && parts[DUK_DATE_IDX_MONTH] <= 12); + DUK_ASSERT(parts[DUK_DATE_IDX_DAY] >= 1 && parts[DUK_DATE_IDX_DAY] <= 31); + + if (flags & DUK_DATE_FLAG_TOSTRING_LOCALE) { + /* try locale specific formatter; if it refuses to format the + * string, fall back to an ISO 8601 formatted value in local + * time. + */ +#if defined(DUK_USE_DATE_FORMAT_STRING) + /* Contract, either: + * - Push string to value stack and return 1 + * - Don't push anything and return 0 + */ + + rc = DUK_USE_DATE_FORMAT_STRING(ctx, parts, tzoffset, flags); + if (rc != 0) { + return 1; + } +#else + /* No locale specific formatter; this is OK, we fall back + * to ISO 8601. + */ +#endif + } + + /* Different calling convention than above used because the helper + * is shared. + */ + duk__format_parts_iso8601(parts, tzoffset, flags, buf); + duk_push_string(ctx, (const char *) buf); + return 1; +} + +/* Helper for component getter calls: check 'this' binding, get the + * internal time value, split it into parts (either as UTC time or + * local time), push a specified component as a return value to the + * value stack and return 1 (caller can then tail call us). + */ +DUK_LOCAL duk_ret_t duk__get_part_helper(duk_context *ctx, duk_small_uint_t flags_and_idx) { + duk_double_t d; + duk_int_t parts[DUK_DATE_IDX_NUM_PARTS]; + duk_small_uint_t idx_part = (duk_small_uint_t) (flags_and_idx >> DUK_DATE_FLAG_VALUE_SHIFT); /* unpack args */ + + DUK_ASSERT_DISABLE(idx_part >= 0); /* unsigned */ + DUK_ASSERT(idx_part < DUK_DATE_IDX_NUM_PARTS); + + d = duk__push_this_get_timeval(ctx, flags_and_idx); + if (DUK_ISNAN(d)) { + duk_push_nan(ctx); + return 1; + } + DUK_ASSERT(DUK_ISFINITE(d)); + + duk_bi_date_timeval_to_parts(d, parts, NULL, flags_and_idx); /* no need to mask idx portion */ + + /* Setter APIs detect special year numbers (0...99) and apply a +1900 + * only in certain cases. The legacy getYear() getter applies -1900 + * unconditionally. + */ + duk_push_int(ctx, (flags_and_idx & DUK_DATE_FLAG_SUB1900) ? parts[idx_part] - 1900 : parts[idx_part]); + return 1; +} + +/* Helper for component setter calls: check 'this' binding, get the + * internal time value, split it into parts (either as UTC time or + * local time), modify one or more components as specified, recompute + * the time value, set it as the internal value. Finally, push the + * new time value as a return value to the value stack and return 1 + * (caller can then tail call us). + */ +DUK_LOCAL duk_ret_t duk__set_part_helper(duk_context *ctx, duk_small_uint_t flags_and_maxnargs) { + duk_double_t d; + duk_int_t parts[DUK_DATE_IDX_NUM_PARTS]; + duk_double_t dparts[DUK_DATE_IDX_NUM_PARTS]; + duk_idx_t nargs; + duk_small_uint_t maxnargs = (duk_small_uint_t) (flags_and_maxnargs >> DUK_DATE_FLAG_VALUE_SHIFT); /* unpack args */ + duk_small_uint_t idx_first, idx; + duk_small_uint_t i; + + nargs = duk_get_top(ctx); + d = duk__push_this_get_timeval(ctx, flags_and_maxnargs); + DUK_ASSERT(DUK_ISFINITE(d) || DUK_ISNAN(d)); + + if (DUK_ISFINITE(d)) { + duk_bi_date_timeval_to_parts(d, parts, dparts, flags_and_maxnargs); + } else { + /* NaN timevalue: we need to coerce the arguments, but + * the resulting internal timestamp needs to remain NaN. + * This works but is not pretty: parts and dparts will + * be partially uninitialized, but we only write to them. + */ + } + + /* + * Determining which datetime components to overwrite based on + * stack arguments is a bit complicated, but important to factor + * out from setters themselves for compactness. + * + * If DUK_DATE_FLAG_TIMESETTER, maxnargs indicates setter type: + * + * 1 -> millisecond + * 2 -> second, [millisecond] + * 3 -> minute, [second], [millisecond] + * 4 -> hour, [minute], [second], [millisecond] + * + * Else: + * + * 1 -> date + * 2 -> month, [date] + * 3 -> year, [month], [date] + * + * By comparing nargs and maxnargs (and flags) we know which + * components to override. We rely on part index ordering. + */ + + if (flags_and_maxnargs & DUK_DATE_FLAG_TIMESETTER) { + DUK_ASSERT(maxnargs >= 1 && maxnargs <= 4); + idx_first = DUK_DATE_IDX_MILLISECOND - (maxnargs - 1); + } else { + DUK_ASSERT(maxnargs >= 1 && maxnargs <= 3); + idx_first = DUK_DATE_IDX_DAY - (maxnargs - 1); + } + DUK_ASSERT_DISABLE(idx_first >= 0); /* unsigned */ + DUK_ASSERT(idx_first < DUK_DATE_IDX_NUM_PARTS); + + for (i = 0; i < maxnargs; i++) { + if ((duk_idx_t) i >= nargs) { + /* no argument given -> leave components untouched */ + break; + } + idx = idx_first + i; + DUK_ASSERT_DISABLE(idx >= 0); /* unsigned */ + DUK_ASSERT(idx < DUK_DATE_IDX_NUM_PARTS); + + if (idx == DUK_DATE_IDX_YEAR && (flags_and_maxnargs & DUK_DATE_FLAG_YEAR_FIXUP)) { + duk__twodigit_year_fixup(ctx, (duk_idx_t) i); + } + + dparts[idx] = duk_to_number(ctx, i); + + if (idx == DUK_DATE_IDX_DAY) { + /* Day-of-month is one-based in the API, but zero-based + * internally, so fix here. Note that month is zero-based + * both in the API and internally. + */ + /* SCANBUILD: complains about use of uninitialized values. + * The complaint is correct, but operating in undefined + * values here is intentional in some cases and the caller + * ignores the results. + */ + dparts[idx] -= 1.0; + } + } + + /* Leaves new timevalue on stack top and returns 1, which is correct + * for part setters. + */ + if (DUK_ISFINITE(d)) { + return duk__set_this_timeval_from_dparts(ctx, dparts, flags_and_maxnargs); + } else { + /* Internal timevalue is already NaN, so don't touch it. */ + duk_push_nan(ctx); + return 1; + } +} + +/* Apply ToNumber() to specified index; if ToInteger(val) in [0,99], add + * 1900 and replace value at idx_val. + */ +DUK_LOCAL void duk__twodigit_year_fixup(duk_context *ctx, duk_idx_t idx_val) { + duk_double_t d; + + /* XXX: idx_val would fit into 16 bits, but using duk_small_uint_t + * might not generate better code due to casting. + */ + + /* E5 Sections 15.9.3.1, B.2.4, B.2.5 */ + duk_to_number(ctx, idx_val); + if (duk_is_nan(ctx, idx_val)) { + return; + } + duk_dup(ctx, idx_val); + duk_to_int(ctx, -1); + d = duk_get_number(ctx, -1); /* get as double to handle huge numbers correctly */ + if (d >= 0.0 && d <= 99.0) { + d += 1900.0; + duk_push_number(ctx, d); + duk_replace(ctx, idx_val); + } + duk_pop(ctx); +} + +/* Set datetime parts from stack arguments, defaulting any missing values. + * Day-of-week is not set; it is not required when setting the time value. + */ +DUK_LOCAL void duk__set_parts_from_args(duk_context *ctx, duk_double_t *dparts, duk_idx_t nargs) { + duk_double_t d; + duk_small_uint_t i; + duk_small_uint_t idx; + + /* Causes a ToNumber() coercion, but doesn't break coercion order since + * year is coerced first anyway. + */ + duk__twodigit_year_fixup(ctx, 0); + + /* There are at most 7 args, but we use 8 here so that also + * DUK_DATE_IDX_WEEKDAY gets initialized (to zero) to avoid the potential + * for any Valgrind gripes later. + */ + for (i = 0; i < 8; i++) { + /* Note: rely on index ordering */ + idx = DUK_DATE_IDX_YEAR + i; + if ((duk_idx_t) i < nargs) { + d = duk_to_number(ctx, (duk_idx_t) i); + if (idx == DUK_DATE_IDX_DAY) { + /* Convert day from one-based to zero-based (internal). This may + * cause the day part to be negative, which is OK. + */ + d -= 1.0; + } + } else { + /* All components default to 0 except day-of-month which defaults + * to 1. However, because our internal day-of-month is zero-based, + * it also defaults to zero here. + */ + d = 0.0; + } + dparts[idx] = d; + } + + DUK_DDD(DUK_DDDPRINT("parts from args -> %lf %lf %lf %lf %lf %lf %lf %lf", + (double) dparts[0], (double) dparts[1], + (double) dparts[2], (double) dparts[3], + (double) dparts[4], (double) dparts[5], + (double) dparts[6], (double) dparts[7])); +} + +/* + * Helper to format a time value into caller buffer, used by logging. + * 'out_buf' must be at least DUK_BI_DATE_ISO8601_BUFSIZE long. + */ + +DUK_INTERNAL void duk_bi_date_format_timeval(duk_double_t timeval, duk_uint8_t *out_buf) { + duk_int_t parts[DUK_DATE_IDX_NUM_PARTS]; + + duk_bi_date_timeval_to_parts(timeval, + parts, + NULL, + DUK_DATE_FLAG_ONEBASED); + + duk__format_parts_iso8601(parts, + 0 /*tzoffset*/, + DUK_DATE_FLAG_TOSTRING_DATE | + DUK_DATE_FLAG_TOSTRING_TIME | + DUK_DATE_FLAG_SEP_T /*flags*/, + out_buf); +} + +/* + * Indirect magic value lookup for Date methods. + * + * Date methods don't put their control flags into the function magic value + * because they wouldn't fit into a LIGHTFUNC's magic field. Instead, the + * magic value is set to an index pointing to the array of control flags + * below. + * + * This must be kept in strict sync with genbuiltins.py! + */ + +static duk_uint16_t duk__date_magics[] = { + /* 0: toString */ + DUK_DATE_FLAG_TOSTRING_DATE + DUK_DATE_FLAG_TOSTRING_TIME + DUK_DATE_FLAG_LOCALTIME, + + /* 1: toDateString */ + DUK_DATE_FLAG_TOSTRING_DATE + DUK_DATE_FLAG_LOCALTIME, + + /* 2: toTimeString */ + DUK_DATE_FLAG_TOSTRING_TIME + DUK_DATE_FLAG_LOCALTIME, + + /* 3: toLocaleString */ + DUK_DATE_FLAG_TOSTRING_DATE + DUK_DATE_FLAG_TOSTRING_TIME + DUK_DATE_FLAG_TOSTRING_LOCALE + DUK_DATE_FLAG_LOCALTIME, + + /* 4: toLocaleDateString */ + DUK_DATE_FLAG_TOSTRING_DATE + DUK_DATE_FLAG_TOSTRING_LOCALE + DUK_DATE_FLAG_LOCALTIME, + + /* 5: toLocaleTimeString */ + DUK_DATE_FLAG_TOSTRING_TIME + DUK_DATE_FLAG_TOSTRING_LOCALE + DUK_DATE_FLAG_LOCALTIME, + + /* 6: toUTCString */ + DUK_DATE_FLAG_TOSTRING_DATE + DUK_DATE_FLAG_TOSTRING_TIME, + + /* 7: toISOString */ + DUK_DATE_FLAG_TOSTRING_DATE + DUK_DATE_FLAG_TOSTRING_TIME + DUK_DATE_FLAG_NAN_TO_RANGE_ERROR + DUK_DATE_FLAG_SEP_T, + + /* 8: getFullYear */ + DUK_DATE_FLAG_LOCALTIME + (DUK_DATE_IDX_YEAR << DUK_DATE_FLAG_VALUE_SHIFT), + + /* 9: getUTCFullYear */ + 0 + (DUK_DATE_IDX_YEAR << DUK_DATE_FLAG_VALUE_SHIFT), + + /* 10: getMonth */ + DUK_DATE_FLAG_LOCALTIME + (DUK_DATE_IDX_MONTH << DUK_DATE_FLAG_VALUE_SHIFT), + + /* 11: getUTCMonth */ + 0 + (DUK_DATE_IDX_MONTH << DUK_DATE_FLAG_VALUE_SHIFT), + + /* 12: getDate */ + DUK_DATE_FLAG_ONEBASED + DUK_DATE_FLAG_LOCALTIME + (DUK_DATE_IDX_DAY << DUK_DATE_FLAG_VALUE_SHIFT), + + /* 13: getUTCDate */ + DUK_DATE_FLAG_ONEBASED + (DUK_DATE_IDX_DAY << DUK_DATE_FLAG_VALUE_SHIFT), + + /* 14: getDay */ + DUK_DATE_FLAG_LOCALTIME + (DUK_DATE_IDX_WEEKDAY << DUK_DATE_FLAG_VALUE_SHIFT), + + /* 15: getUTCDay */ + 0 + (DUK_DATE_IDX_WEEKDAY << DUK_DATE_FLAG_VALUE_SHIFT), + + /* 16: getHours */ + DUK_DATE_FLAG_LOCALTIME + (DUK_DATE_IDX_HOUR << DUK_DATE_FLAG_VALUE_SHIFT), + + /* 17: getUTCHours */ + 0 + (DUK_DATE_IDX_HOUR << DUK_DATE_FLAG_VALUE_SHIFT), + + /* 18: getMinutes */ + DUK_DATE_FLAG_LOCALTIME + (DUK_DATE_IDX_MINUTE << DUK_DATE_FLAG_VALUE_SHIFT), + + /* 19: getUTCMinutes */ + 0 + (DUK_DATE_IDX_MINUTE << DUK_DATE_FLAG_VALUE_SHIFT), + + /* 20: getSeconds */ + DUK_DATE_FLAG_LOCALTIME + (DUK_DATE_IDX_SECOND << DUK_DATE_FLAG_VALUE_SHIFT), + + /* 21: getUTCSeconds */ + 0 + (DUK_DATE_IDX_SECOND << DUK_DATE_FLAG_VALUE_SHIFT), + + /* 22: getMilliseconds */ + DUK_DATE_FLAG_LOCALTIME + (DUK_DATE_IDX_MILLISECOND << DUK_DATE_FLAG_VALUE_SHIFT), + + /* 23: getUTCMilliseconds */ + 0 + (DUK_DATE_IDX_MILLISECOND << DUK_DATE_FLAG_VALUE_SHIFT), + + /* 24: setMilliseconds */ + DUK_DATE_FLAG_TIMESETTER + DUK_DATE_FLAG_LOCALTIME + (1 << DUK_DATE_FLAG_VALUE_SHIFT), + + /* 25: setUTCMilliseconds */ + DUK_DATE_FLAG_TIMESETTER + (1 << DUK_DATE_FLAG_VALUE_SHIFT), + + /* 26: setSeconds */ + DUK_DATE_FLAG_TIMESETTER + DUK_DATE_FLAG_LOCALTIME + (2 << DUK_DATE_FLAG_VALUE_SHIFT), + + /* 27: setUTCSeconds */ + DUK_DATE_FLAG_TIMESETTER + (2 << DUK_DATE_FLAG_VALUE_SHIFT), + + /* 28: setMinutes */ + DUK_DATE_FLAG_TIMESETTER + DUK_DATE_FLAG_LOCALTIME + (3 << DUK_DATE_FLAG_VALUE_SHIFT), + + /* 29: setUTCMinutes */ + DUK_DATE_FLAG_TIMESETTER + (3 << DUK_DATE_FLAG_VALUE_SHIFT), + + /* 30: setHours */ + DUK_DATE_FLAG_TIMESETTER + DUK_DATE_FLAG_LOCALTIME + (4 << DUK_DATE_FLAG_VALUE_SHIFT), + + /* 31: setUTCHours */ + DUK_DATE_FLAG_TIMESETTER + (4 << DUK_DATE_FLAG_VALUE_SHIFT), + + /* 32: setDate */ + DUK_DATE_FLAG_LOCALTIME + (1 << DUK_DATE_FLAG_VALUE_SHIFT), + + /* 33: setUTCDate */ + 0 + (1 << DUK_DATE_FLAG_VALUE_SHIFT), + + /* 34: setMonth */ + DUK_DATE_FLAG_LOCALTIME + (2 << DUK_DATE_FLAG_VALUE_SHIFT), + + /* 35: setUTCMonth */ + 0 + (2 << DUK_DATE_FLAG_VALUE_SHIFT), + + /* 36: setFullYear */ + DUK_DATE_FLAG_NAN_TO_ZERO + DUK_DATE_FLAG_LOCALTIME + (3 << DUK_DATE_FLAG_VALUE_SHIFT), + + /* 37: setUTCFullYear */ + DUK_DATE_FLAG_NAN_TO_ZERO + (3 << DUK_DATE_FLAG_VALUE_SHIFT), + + /* 38: getYear */ + DUK_DATE_FLAG_LOCALTIME + DUK_DATE_FLAG_SUB1900 + (DUK_DATE_IDX_YEAR << DUK_DATE_FLAG_VALUE_SHIFT), + + /* 39: setYear */ + DUK_DATE_FLAG_NAN_TO_ZERO + DUK_DATE_FLAG_YEAR_FIXUP + (3 << DUK_DATE_FLAG_VALUE_SHIFT), +}; + +DUK_LOCAL duk_small_uint_t duk__date_get_indirect_magic(duk_context *ctx) { + duk_small_int_t magicidx = (duk_small_uint_t) duk_get_current_magic(ctx); + DUK_ASSERT(magicidx >= 0 && magicidx < (duk_small_int_t) (sizeof(duk__date_magics) / sizeof(duk_uint16_t))); + return (duk_small_uint_t) duk__date_magics[magicidx]; +} + +/* + * Constructor calls + */ + +DUK_INTERNAL duk_ret_t duk_bi_date_constructor(duk_context *ctx) { + duk_idx_t nargs = duk_get_top(ctx); + duk_bool_t is_cons = duk_is_constructor_call(ctx); + duk_double_t dparts[DUK_DATE_IDX_NUM_PARTS]; + duk_double_t d; + + DUK_DDD(DUK_DDDPRINT("Date constructor, nargs=%ld, is_cons=%ld", (long) nargs, (long) is_cons)); + + duk_push_object_helper(ctx, + DUK_HOBJECT_FLAG_EXTENSIBLE | + DUK_HOBJECT_CLASS_AS_FLAGS(DUK_HOBJECT_CLASS_DATE), + DUK_BIDX_DATE_PROTOTYPE); + + /* Unlike most built-ins, the internal [[PrimitiveValue]] of a Date + * is mutable. + */ + + if (nargs == 0 || !is_cons) { + d = duk__timeclip(DUK_USE_DATE_GET_NOW(ctx)); + duk_push_number(ctx, d); + duk_xdef_prop_stridx(ctx, -2, DUK_STRIDX_INT_VALUE, DUK_PROPDESC_FLAGS_W); + if (!is_cons) { + /* called as a normal function: return new Date().toString() */ + duk_to_string(ctx, -1); + } + return 1; + } else if (nargs == 1) { + duk_to_primitive(ctx, 0, DUK_HINT_NONE); + if (duk_is_string(ctx, 0)) { + duk__parse_string(ctx, duk_to_string(ctx, 0)); + duk_replace(ctx, 0); /* may be NaN */ + } + d = duk__timeclip(duk_to_number(ctx, 0)); + duk_push_number(ctx, d); + duk_xdef_prop_stridx(ctx, -2, DUK_STRIDX_INT_VALUE, DUK_PROPDESC_FLAGS_W); + return 1; + } + + duk__set_parts_from_args(ctx, dparts, nargs); + + /* Parts are in local time, convert when setting. */ + + (void) duk__set_this_timeval_from_dparts(ctx, dparts, DUK_DATE_FLAG_LOCALTIME /*flags*/); /* -> [ ... this timeval ] */ + duk_pop(ctx); /* -> [ ... this ] */ + return 1; +} + +DUK_INTERNAL duk_ret_t duk_bi_date_constructor_parse(duk_context *ctx) { + return duk__parse_string(ctx, duk_to_string(ctx, 0)); +} + +DUK_INTERNAL duk_ret_t duk_bi_date_constructor_utc(duk_context *ctx) { + duk_idx_t nargs = duk_get_top(ctx); + duk_double_t dparts[DUK_DATE_IDX_NUM_PARTS]; + duk_double_t d; + + /* Behavior for nargs < 2 is implementation dependent: currently we'll + * set a NaN time value (matching V8 behavior) in this case. + */ + + if (nargs < 2) { + duk_push_nan(ctx); + } else { + duk__set_parts_from_args(ctx, dparts, nargs); + d = duk_bi_date_get_timeval_from_dparts(dparts, 0 /*flags*/); + duk_push_number(ctx, d); + } + return 1; +} + +DUK_INTERNAL duk_ret_t duk_bi_date_constructor_now(duk_context *ctx) { + duk_double_t d; + + d = DUK_USE_DATE_GET_NOW(ctx); + DUK_ASSERT(duk__timeclip(d) == d); /* TimeClip() should never be necessary */ + duk_push_number(ctx, d); + return 1; +} + +/* + * String/JSON conversions + * + * Human readable conversions are now basically ISO 8601 with a space + * (instead of 'T') as the date/time separator. This is a good baseline + * and is platform independent. + * + * A shared native helper to provide many conversions. Magic value contains + * a set of flags. The helper provides: + * + * toString() + * toDateString() + * toTimeString() + * toLocaleString() + * toLocaleDateString() + * toLocaleTimeString() + * toUTCString() + * toISOString() + * + * Notes: + * + * - Date.prototype.toGMTString() and Date.prototype.toUTCString() are + * required to be the same Ecmascript function object (!), so it is + * omitted from here. + * + * - Date.prototype.toUTCString(): E5.1 specification does not require a + * specific format, but result should be human readable. The + * specification suggests using ISO 8601 format with a space (instead + * of 'T') separator if a more human readable format is not available. + * + * - Date.prototype.toISOString(): unlike other conversion functions, + * toISOString() requires a RangeError for invalid date values. + */ + +DUK_INTERNAL duk_ret_t duk_bi_date_prototype_tostring_shared(duk_context *ctx) { + duk_small_uint_t flags = duk__date_get_indirect_magic(ctx); + return duk__to_string_helper(ctx, flags); +} + +DUK_INTERNAL duk_ret_t duk_bi_date_prototype_value_of(duk_context *ctx) { + /* This native function is also used for Date.prototype.getTime() + * as their behavior is identical. + */ + + duk_double_t d = duk__push_this_get_timeval(ctx, 0 /*flags*/); /* -> [ this ] */ + DUK_ASSERT(DUK_ISFINITE(d) || DUK_ISNAN(d)); + duk_push_number(ctx, d); + return 1; +} + +DUK_INTERNAL duk_ret_t duk_bi_date_prototype_to_json(duk_context *ctx) { + /* Note: toJSON() is a generic function which works even if 'this' + * is not a Date. The sole argument is ignored. + */ + + duk_push_this(ctx); + duk_to_object(ctx, -1); + + duk_dup_top(ctx); + duk_to_primitive(ctx, -1, DUK_HINT_NUMBER); + if (duk_is_number(ctx, -1)) { + duk_double_t d = duk_get_number(ctx, -1); + if (!DUK_ISFINITE(d)) { + duk_push_null(ctx); + return 1; + } + } + duk_pop(ctx); + + duk_get_prop_stridx(ctx, -1, DUK_STRIDX_TO_ISO_STRING); + duk_dup(ctx, -2); /* -> [ O toIsoString O ] */ + duk_call_method(ctx, 0); + return 1; +} + +/* + * Getters. + * + * Implementing getters is quite easy. The internal time value is either + * NaN, or represents milliseconds (without fractions) from Jan 1, 1970. + * The internal time value can be converted to integer parts, and each + * part will be normalized and will fit into a 32-bit signed integer. + * + * A shared native helper to provide all getters. Magic value contains + * a set of flags and also packs the date component index argument. The + * helper provides: + * + * getFullYear() + * getUTCFullYear() + * getMonth() + * getUTCMonth() + * getDate() + * getUTCDate() + * getDay() + * getUTCDay() + * getHours() + * getUTCHours() + * getMinutes() + * getUTCMinutes() + * getSeconds() + * getUTCSeconds() + * getMilliseconds() + * getUTCMilliseconds() + * getYear() + * + * Notes: + * + * - Date.prototype.getDate(): 'date' means day-of-month, and is + * zero-based in internal calculations but public API expects it to + * be one-based. + * + * - Date.prototype.getTime() and Date.prototype.valueOf() have identical + * behavior. They have separate function objects, but share the same C + * function (duk_bi_date_prototype_value_of). + */ + +DUK_INTERNAL duk_ret_t duk_bi_date_prototype_get_shared(duk_context *ctx) { + duk_small_uint_t flags_and_idx = duk__date_get_indirect_magic(ctx); + return duk__get_part_helper(ctx, flags_and_idx); +} + +DUK_INTERNAL duk_ret_t duk_bi_date_prototype_get_timezone_offset(duk_context *ctx) { + /* + * Return (t - LocalTime(t)) in minutes: + * + * t - LocalTime(t) = t - (t + LocalTZA + DaylightSavingTA(t)) + * = -(LocalTZA + DaylightSavingTA(t)) + * + * where DaylightSavingTA() is checked for time 't'. + * + * Note that the sign of the result is opposite to common usage, + * e.g. for EE(S)T which normally is +2h or +3h from UTC, this + * function returns -120 or -180. + * + */ + + duk_double_t d; + duk_int_t tzoffset; + + /* Note: DST adjustment is determined using UTC time. */ + d = duk__push_this_get_timeval(ctx, 0 /*flags*/); + DUK_ASSERT(DUK_ISFINITE(d) || DUK_ISNAN(d)); + if (DUK_ISNAN(d)) { + duk_push_nan(ctx); + } else { + DUK_ASSERT(DUK_ISFINITE(d)); + tzoffset = DUK_USE_DATE_GET_LOCAL_TZOFFSET(d); + duk_push_int(ctx, -tzoffset / 60); + } + return 1; +} + +/* + * Setters. + * + * Setters are a bit more complicated than getters. Component setters + * break down the current time value into its (normalized) component + * parts, replace one or more components with -unnormalized- new values, + * and the components are then converted back into a time value. As an + * example of using unnormalized values: + * + * var d = new Date(1234567890); + * + * is equivalent to: + * + * var d = new Date(0); + * d.setUTCMilliseconds(1234567890); + * + * A shared native helper to provide almost all setters. Magic value + * contains a set of flags and also packs the "maxnargs" argument. The + * helper provides: + * + * setMilliseconds() + * setUTCMilliseconds() + * setSeconds() + * setUTCSeconds() + * setMinutes() + * setUTCMinutes() + * setHours() + * setUTCHours() + * setDate() + * setUTCDate() + * setMonth() + * setUTCMonth() + * setFullYear() + * setUTCFullYear() + * setYear() + * + * Notes: + * + * - Date.prototype.setYear() (Section B addition): special year check + * is omitted. NaN / Infinity will just flow through and ultimately + * result in a NaN internal time value. + * + * - Date.prototype.setYear() does not have optional arguments for + * setting month and day-in-month (like setFullYear()), but we indicate + * 'maxnargs' to be 3 to get the year written to the correct component + * index in duk__set_part_helper(). The function has nargs == 1, so only + * the year will be set regardless of actual argument count. + */ + +DUK_INTERNAL duk_ret_t duk_bi_date_prototype_set_shared(duk_context *ctx) { + duk_small_uint_t flags_and_maxnargs = duk__date_get_indirect_magic(ctx); + return duk__set_part_helper(ctx, flags_and_maxnargs); +} + +DUK_INTERNAL duk_ret_t duk_bi_date_prototype_set_time(duk_context *ctx) { + duk_double_t d; + + (void) duk__push_this_get_timeval(ctx, 0 /*flags*/); /* -> [ timeval this ] */ + d = duk__timeclip(duk_to_number(ctx, 0)); + duk_push_number(ctx, d); + duk_dup_top(ctx); + duk_put_prop_stridx(ctx, -3, DUK_STRIDX_INT_VALUE); /* -> [ timeval this timeval ] */ + + return 1; +} +#line 1 "duk_bi_date_unix.c" +/* + * Unix-like Date providers + * + * Generally useful Unix / POSIX / ANSI Date providers. + */ + +/* include removed: duk_internal.h */ + +/* The necessary #includes are in place in duk_config.h. */ + +/* Buffer sizes for some UNIX calls. Larger than strictly necessary + * to avoid Valgrind errors. + */ +#define DUK__STRPTIME_BUF_SIZE 64 +#define DUK__STRFTIME_BUF_SIZE 64 + +#if defined(DUK_USE_DATE_NOW_GETTIMEOFDAY) +/* Get current Ecmascript time (= UNIX/Posix time, but in milliseconds). */ +DUK_INTERNAL duk_double_t duk_bi_date_get_now_gettimeofday(duk_context *ctx) { + duk_hthread *thr = (duk_hthread *) ctx; + struct timeval tv; + duk_double_t d; + + if (gettimeofday(&tv, NULL) != 0) { + DUK_ERROR_INTERNAL_DEFMSG(thr); + } + + d = ((duk_double_t) tv.tv_sec) * 1000.0 + + ((duk_double_t) (tv.tv_usec / 1000)); + DUK_ASSERT(DUK_FLOOR(d) == d); /* no fractions */ + + return d; +} +#endif /* DUK_USE_DATE_NOW_GETTIMEOFDAY */ + +#if defined(DUK_USE_DATE_NOW_TIME) +/* Not a very good provider: only full seconds are available. */ +DUK_INTERNAL duk_double_t duk_bi_date_get_now_time(duk_context *ctx) { + time_t t; + + DUK_UNREF(ctx); + t = time(NULL); + return ((duk_double_t) t) * 1000.0; +} +#endif /* DUK_USE_DATE_NOW_TIME */ + +#if defined(DUK_USE_DATE_TZO_GMTIME) || defined(DUK_USE_DATE_TZO_GMTIME_R) +/* Get local time offset (in seconds) for a certain (UTC) instant 'd'. */ +DUK_INTERNAL duk_int_t duk_bi_date_get_local_tzoffset_gmtime(duk_double_t d) { + time_t t, t1, t2; + duk_int_t parts[DUK_DATE_IDX_NUM_PARTS]; + duk_double_t dparts[DUK_DATE_IDX_NUM_PARTS]; + struct tm tms[2]; +#ifdef DUK_USE_DATE_TZO_GMTIME + struct tm *tm_ptr; +#endif + + /* For NaN/inf, the return value doesn't matter. */ + if (!DUK_ISFINITE(d)) { + return 0; + } + + /* If not within Ecmascript range, some integer time calculations + * won't work correctly (and some asserts will fail), so bail out + * if so. This fixes test-bug-date-insane-setyear.js. There is + * a +/- 24h leeway in this range check to avoid a test262 corner + * case documented in test-bug-date-timeval-edges.js. + */ + if (!duk_bi_date_timeval_in_leeway_range(d)) { + DUK_DD(DUK_DDPRINT("timeval not within valid range, skip tzoffset computation to avoid integer overflows")); + return 0; + } + + /* + * This is a bit tricky to implement portably. The result depends + * on the timestamp (specifically, DST depends on the timestamp). + * If e.g. UNIX APIs are used, they'll have portability issues with + * very small and very large years. + * + * Current approach: + * + * - Stay within portable UNIX limits by using equivalent year mapping. + * Avoid year 1970 and 2038 as some conversions start to fail, at + * least on some platforms. Avoiding 1970 means that there are + * currently DST discrepancies for 1970. + * + * - Create a UTC and local time breakdowns from 't'. Then create + * a time_t using gmtime() and localtime() and compute the time + * difference between the two. + * + * Equivalent year mapping (E5 Section 15.9.1.8): + * + * If the host environment provides functionality for determining + * daylight saving time, the implementation of ECMAScript is free + * to map the year in question to an equivalent year (same + * leap-year-ness and same starting week day for the year) for which + * the host environment provides daylight saving time information. + * The only restriction is that all equivalent years should produce + * the same result. + * + * This approach is quite reasonable but not entirely correct, e.g. + * the specification also states (E5 Section 15.9.1.8): + * + * The implementation of ECMAScript should not try to determine + * whether the exact time was subject to daylight saving time, but + * just whether daylight saving time would have been in effect if + * the _current daylight saving time algorithm_ had been used at the + * time. This avoids complications such as taking into account the + * years that the locale observed daylight saving time year round. + * + * Since we rely on the platform APIs for conversions between local + * time and UTC, we can't guarantee the above. Rather, if the platform + * has historical DST rules they will be applied. This seems to be the + * general preferred direction in Ecmascript standardization (or at least + * implementations) anyway, and even the equivalent year mapping should + * be disabled if the platform is known to handle DST properly for the + * full Ecmascript range. + * + * The following has useful discussion and links: + * + * https://bugzilla.mozilla.org/show_bug.cgi?id=351066 + */ + + duk_bi_date_timeval_to_parts(d, parts, dparts, DUK_DATE_FLAG_EQUIVYEAR /*flags*/); + DUK_ASSERT(parts[DUK_DATE_IDX_YEAR] >= 1970 && parts[DUK_DATE_IDX_YEAR] <= 2038); + + d = duk_bi_date_get_timeval_from_dparts(dparts, 0 /*flags*/); + DUK_ASSERT(d >= 0 && d < 2147483648.0 * 1000.0); /* unsigned 31-bit range */ + t = (time_t) (d / 1000.0); + DUK_DDD(DUK_DDDPRINT("timeval: %lf -> time_t %ld", (double) d, (long) t)); + + DUK_MEMZERO((void *) tms, sizeof(struct tm) * 2); + +#if defined(DUK_USE_DATE_TZO_GMTIME_R) + (void) gmtime_r(&t, &tms[0]); + (void) localtime_r(&t, &tms[1]); +#elif defined(DUK_USE_DATE_TZO_GMTIME) + tm_ptr = gmtime(&t); + DUK_MEMCPY((void *) &tms[0], tm_ptr, sizeof(struct tm)); + tm_ptr = localtime(&t); + DUK_MEMCPY((void *) &tms[1], tm_ptr, sizeof(struct tm)); +#else +#error internal error +#endif + DUK_DDD(DUK_DDDPRINT("gmtime result: tm={sec:%ld,min:%ld,hour:%ld,mday:%ld,mon:%ld,year:%ld," + "wday:%ld,yday:%ld,isdst:%ld}", + (long) tms[0].tm_sec, (long) tms[0].tm_min, (long) tms[0].tm_hour, + (long) tms[0].tm_mday, (long) tms[0].tm_mon, (long) tms[0].tm_year, + (long) tms[0].tm_wday, (long) tms[0].tm_yday, (long) tms[0].tm_isdst)); + DUK_DDD(DUK_DDDPRINT("localtime result: tm={sec:%ld,min:%ld,hour:%ld,mday:%ld,mon:%ld,year:%ld," + "wday:%ld,yday:%ld,isdst:%ld}", + (long) tms[1].tm_sec, (long) tms[1].tm_min, (long) tms[1].tm_hour, + (long) tms[1].tm_mday, (long) tms[1].tm_mon, (long) tms[1].tm_year, + (long) tms[1].tm_wday, (long) tms[1].tm_yday, (long) tms[1].tm_isdst)); + + /* tm_isdst is both an input and an output to mktime(), use 0 to + * avoid DST handling in mktime(): + * - https://github.com/svaarala/duktape/issues/406 + * - http://stackoverflow.com/questions/8558919/mktime-and-tm-isdst + */ + tms[0].tm_isdst = 0; + tms[1].tm_isdst = 0; + t1 = mktime(&tms[0]); /* UTC */ + t2 = mktime(&tms[1]); /* local */ + if (t1 == (time_t) -1 || t2 == (time_t) -1) { + /* This check used to be for (t < 0) but on some platforms + * time_t is unsigned and apparently the proper way to detect + * an mktime() error return is the cast above. See e.g.: + * http://pubs.opengroup.org/onlinepubs/009695299/functions/mktime.html + */ + goto error; + } + DUK_DDD(DUK_DDDPRINT("t1=%ld (utc), t2=%ld (local)", (long) t1, (long) t2)); + + /* Compute final offset in seconds, positive if local time ahead of + * UTC (returned value is UTC-to-local offset). + * + * difftime() returns a double, so coercion to int generates quite + * a lot of code. Direct subtraction is not portable, however. + * XXX: allow direct subtraction on known platforms. + */ +#if 0 + return (duk_int_t) (t2 - t1); +#endif + return (duk_int_t) difftime(t2, t1); + + error: + /* XXX: return something more useful, so that caller can throw? */ + DUK_D(DUK_DPRINT("mktime() failed, d=%lf", (double) d)); + return 0; +} +#endif /* DUK_USE_DATE_TZO_GMTIME */ + +#if defined(DUK_USE_DATE_PRS_STRPTIME) +DUK_INTERNAL duk_bool_t duk_bi_date_parse_string_strptime(duk_context *ctx, const char *str) { + struct tm tm; + time_t t; + char buf[DUK__STRPTIME_BUF_SIZE]; + + /* copy to buffer with spare to avoid Valgrind gripes from strptime */ + DUK_ASSERT(str != NULL); + DUK_MEMZERO(buf, sizeof(buf)); /* valgrind whine without this */ + DUK_SNPRINTF(buf, sizeof(buf), "%s", (const char *) str); + buf[sizeof(buf) - 1] = (char) 0; + + DUK_DDD(DUK_DDDPRINT("parsing: '%s'", (const char *) buf)); + + DUK_MEMZERO(&tm, sizeof(tm)); + if (strptime((const char *) buf, "%c", &tm) != NULL) { + DUK_DDD(DUK_DDDPRINT("before mktime: tm={sec:%ld,min:%ld,hour:%ld,mday:%ld,mon:%ld,year:%ld," + "wday:%ld,yday:%ld,isdst:%ld}", + (long) tm.tm_sec, (long) tm.tm_min, (long) tm.tm_hour, + (long) tm.tm_mday, (long) tm.tm_mon, (long) tm.tm_year, + (long) tm.tm_wday, (long) tm.tm_yday, (long) tm.tm_isdst)); + tm.tm_isdst = -1; /* negative: dst info not available */ + + t = mktime(&tm); + DUK_DDD(DUK_DDDPRINT("mktime() -> %ld", (long) t)); + if (t >= 0) { + duk_push_number(ctx, ((duk_double_t) t) * 1000.0); + return 1; + } + } + + return 0; +} +#endif /* DUK_USE_DATE_PRS_STRPTIME */ + +#if defined(DUK_USE_DATE_PRS_GETDATE) +DUK_INTERNAL duk_bool_t duk_bi_date_parse_string_getdate(duk_context *ctx, const char *str) { + struct tm tm; + duk_small_int_t rc; + time_t t; + + /* For this to work, DATEMSK must be set, so this is not very + * convenient for an embeddable interpreter. + */ + + DUK_MEMZERO(&tm, sizeof(struct tm)); + rc = (duk_small_int_t) getdate_r(str, &tm); + DUK_DDD(DUK_DDDPRINT("getdate_r() -> %ld", (long) rc)); + + if (rc == 0) { + t = mktime(&tm); + DUK_DDD(DUK_DDDPRINT("mktime() -> %ld", (long) t)); + if (t >= 0) { + duk_push_number(ctx, (duk_double_t) t); + return 1; + } + } + + return 0; +} +#endif /* DUK_USE_DATE_PRS_GETDATE */ + +#if defined(DUK_USE_DATE_FMT_STRFTIME) +DUK_INTERNAL duk_bool_t duk_bi_date_format_parts_strftime(duk_context *ctx, duk_int_t *parts, duk_int_t tzoffset, duk_small_uint_t flags) { + char buf[DUK__STRFTIME_BUF_SIZE]; + struct tm tm; + const char *fmt; + + DUK_UNREF(tzoffset); + + /* If the platform doesn't support the entire Ecmascript range, we need + * to return 0 so that the caller can fall back to the default formatter. + * + * For now, assume that if time_t is 8 bytes or more, the whole Ecmascript + * range is supported. For smaller time_t values (4 bytes in practice), + * assumes that the signed 32-bit range is supported. + * + * XXX: detect this more correctly per platform. The size of time_t is + * probably not an accurate guarantee of strftime() supporting or not + * supporting a large time range (the full Ecmascript range). + */ + if (sizeof(time_t) < 8 && + (parts[DUK_DATE_IDX_YEAR] < 1970 || parts[DUK_DATE_IDX_YEAR] > 2037)) { + /* be paranoid for 32-bit time values (even avoiding negative ones) */ + return 0; + } + + DUK_MEMZERO(&tm, sizeof(tm)); + tm.tm_sec = parts[DUK_DATE_IDX_SECOND]; + tm.tm_min = parts[DUK_DATE_IDX_MINUTE]; + tm.tm_hour = parts[DUK_DATE_IDX_HOUR]; + tm.tm_mday = parts[DUK_DATE_IDX_DAY]; /* already one-based */ + tm.tm_mon = parts[DUK_DATE_IDX_MONTH] - 1; /* one-based -> zero-based */ + tm.tm_year = parts[DUK_DATE_IDX_YEAR] - 1900; + tm.tm_wday = parts[DUK_DATE_IDX_WEEKDAY]; + tm.tm_isdst = 0; + + DUK_MEMZERO(buf, sizeof(buf)); + if ((flags & DUK_DATE_FLAG_TOSTRING_DATE) && (flags & DUK_DATE_FLAG_TOSTRING_TIME)) { + fmt = "%c"; + } else if (flags & DUK_DATE_FLAG_TOSTRING_DATE) { + fmt = "%x"; + } else { + DUK_ASSERT(flags & DUK_DATE_FLAG_TOSTRING_TIME); + fmt = "%X"; + } + (void) strftime(buf, sizeof(buf) - 1, fmt, &tm); + DUK_ASSERT(buf[sizeof(buf) - 1] == 0); + + duk_push_string(ctx, buf); + return 1; +} +#endif /* DUK_USE_DATE_FMT_STRFTIME */ + +#undef DUK__STRPTIME_BUF_SIZE +#undef DUK__STRFTIME_BUF_SIZE +#line 1 "duk_bi_date_windows.c" +/* + * Windows Date providers + * + * Platform specific links: + * + * - http://msdn.microsoft.com/en-us/library/windows/desktop/ms725473(v=vs.85).aspx + */ + +/* include removed: duk_internal.h */ + +/* The necessary #includes are in place in duk_config.h. */ + +#if defined(DUK_USE_DATE_NOW_WINDOWS) || defined(DUK_USE_DATE_TZO_WINDOWS) +/* Shared Windows helpers. */ +DUK_LOCAL void duk__convert_systime_to_ularge(const SYSTEMTIME *st, ULARGE_INTEGER *res) { + FILETIME ft; + if (SystemTimeToFileTime(st, &ft) == 0) { + DUK_D(DUK_DPRINT("SystemTimeToFileTime() failed, returning 0")); + res->QuadPart = 0; + } else { + res->LowPart = ft.dwLowDateTime; + res->HighPart = ft.dwHighDateTime; + } +} +DUK_LOCAL void duk__set_systime_jan1970(SYSTEMTIME *st) { + DUK_MEMZERO((void *) st, sizeof(*st)); + st->wYear = 1970; + st->wMonth = 1; + st->wDayOfWeek = 4; /* not sure whether or not needed; Thursday */ + st->wDay = 1; + DUK_ASSERT(st->wHour == 0); + DUK_ASSERT(st->wMinute == 0); + DUK_ASSERT(st->wSecond == 0); + DUK_ASSERT(st->wMilliseconds == 0); +} +#endif /* defined(DUK_USE_DATE_NOW_WINDOWS) || defined(DUK_USE_DATE_TZO_WINDOWS) */ + +#ifdef DUK_USE_DATE_NOW_WINDOWS +DUK_INTERNAL duk_double_t duk_bi_date_get_now_windows(duk_context *ctx) { + /* Suggested step-by-step method from documentation of RtlTimeToSecondsSince1970: + * http://msdn.microsoft.com/en-us/library/windows/desktop/ms724928(v=vs.85).aspx + */ + SYSTEMTIME st1, st2; + ULARGE_INTEGER tmp1, tmp2; + + DUK_UNREF(ctx); + + GetSystemTime(&st1); + duk__convert_systime_to_ularge((const SYSTEMTIME *) &st1, &tmp1); + + duk__set_systime_jan1970(&st2); + duk__convert_systime_to_ularge((const SYSTEMTIME *) &st2, &tmp2); + + /* Difference is in 100ns units, convert to milliseconds w/o fractions */ + return (duk_double_t) ((tmp1.QuadPart - tmp2.QuadPart) / 10000LL); +} +#endif /* DUK_USE_DATE_NOW_WINDOWS */ + + +#if defined(DUK_USE_DATE_TZO_WINDOWS) +DUK_INTERNAL_DECL duk_int_t duk_bi_date_get_local_tzoffset_windows(duk_double_t d) { + SYSTEMTIME st1; + SYSTEMTIME st2; + SYSTEMTIME st3; + ULARGE_INTEGER tmp1; + ULARGE_INTEGER tmp2; + ULARGE_INTEGER tmp3; + FILETIME ft1; + + /* XXX: handling of timestamps outside Windows supported range. + * How does Windows deal with dates before 1600? Does windows + * support all Ecmascript years (like -200000 and +200000)? + * Should equivalent year mapping be used here too? If so, use + * a shared helper (currently integrated into timeval-to-parts). + */ + + /* Use the approach described in "Remarks" of FileTimeToLocalFileTime: + * http://msdn.microsoft.com/en-us/library/windows/desktop/ms724277(v=vs.85).aspx + */ + + duk__set_systime_jan1970(&st1); + duk__convert_systime_to_ularge((const SYSTEMTIME *) &st1, &tmp1); + tmp2.QuadPart = (ULONGLONG) (d * 10000.0); /* millisec -> 100ns units since jan 1, 1970 */ + tmp2.QuadPart += tmp1.QuadPart; /* input 'd' in Windows UTC, 100ns units */ + + ft1.dwLowDateTime = tmp2.LowPart; + ft1.dwHighDateTime = tmp2.HighPart; + FileTimeToSystemTime((const FILETIME *) &ft1, &st2); + if (SystemTimeToTzSpecificLocalTime((LPTIME_ZONE_INFORMATION) NULL, &st2, &st3) == 0) { + DUK_D(DUK_DPRINT("SystemTimeToTzSpecificLocalTime() failed, return tzoffset 0")); + return 0; + } + duk__convert_systime_to_ularge((const SYSTEMTIME *) &st3, &tmp3); + + /* Positive if local time ahead of UTC. */ + return (duk_int_t) (((LONGLONG) tmp3.QuadPart - (LONGLONG) tmp2.QuadPart) / 10000000LL); /* seconds */ +} +#endif /* DUK_USE_DATE_TZO_WINDOWS */ +#line 1 "duk_bi_duktape.c" +/* + * Duktape built-ins + * + * Size optimization note: it might seem that vararg multipurpose functions + * like fin(), enc(), and dec() are not very size optimal, but using a single + * user-visible Ecmascript function saves a lot of run-time footprint; each + * Function instance takes >100 bytes. Using a shared native helper and a + * 'magic' value won't save much if there are multiple Function instances + * anyway. + */ + +/* include removed: duk_internal.h */ + +/* Raw helper to extract internal information / statistics about a value. + * The return values are version specific and must not expose anything + * that would lead to security issues (e.g. exposing compiled function + * 'data' buffer might be an issue). Currently only counts and sizes and + * such are given so there should not be a security impact. + */ +DUK_INTERNAL duk_ret_t duk_bi_duktape_object_info(duk_context *ctx) { + duk_hthread *thr = (duk_hthread *) ctx; + duk_tval *tv; + duk_heaphdr *h; + duk_int_t i, n; + + DUK_UNREF(thr); + + /* result array */ + duk_push_array(ctx); /* -> [ val arr ] */ + + /* type tag (public) */ + duk_push_int(ctx, duk_get_type(ctx, 0)); + + /* address */ + tv = duk_get_tval(ctx, 0); + DUK_ASSERT(tv != NULL); /* because arg count is 1 */ + if (DUK_TVAL_IS_HEAP_ALLOCATED(tv)) { + h = DUK_TVAL_GET_HEAPHDR(tv); + duk_push_pointer(ctx, (void *) h); + } else { + /* internal type tag */ + duk_push_int(ctx, (duk_int_t) DUK_TVAL_GET_TAG(tv)); + goto done; + } + DUK_ASSERT(h != NULL); + + /* refcount */ +#ifdef DUK_USE_REFERENCE_COUNTING + duk_push_size_t(ctx, DUK_HEAPHDR_GET_REFCOUNT(h)); +#else + duk_push_undefined(ctx); +#endif + + /* heaphdr size and additional allocation size, followed by + * type specific stuff (with varying value count) + */ + switch ((duk_small_int_t) DUK_HEAPHDR_GET_TYPE(h)) { + case DUK_HTYPE_STRING: { + duk_hstring *h_str = (duk_hstring *) h; + duk_push_uint(ctx, (duk_uint_t) (sizeof(duk_hstring) + DUK_HSTRING_GET_BYTELEN(h_str) + 1)); + break; + } + case DUK_HTYPE_OBJECT: { + duk_hobject *h_obj = (duk_hobject *) h; + duk_small_uint_t hdr_size; + if (DUK_HOBJECT_IS_COMPILEDFUNCTION(h_obj)) { + hdr_size = (duk_small_uint_t) sizeof(duk_hcompiledfunction); + } else if (DUK_HOBJECT_IS_NATIVEFUNCTION(h_obj)) { + hdr_size = (duk_small_uint_t) sizeof(duk_hnativefunction); + } else if (DUK_HOBJECT_IS_THREAD(h_obj)) { + hdr_size = (duk_small_uint_t) sizeof(duk_hthread); + } else { + hdr_size = (duk_small_uint_t) sizeof(duk_hobject); + } + duk_push_uint(ctx, (duk_uint_t) hdr_size); + duk_push_uint(ctx, (duk_uint_t) DUK_HOBJECT_P_ALLOC_SIZE(h_obj)); + duk_push_uint(ctx, (duk_uint_t) DUK_HOBJECT_GET_ESIZE(h_obj)); + /* Note: e_next indicates the number of gc-reachable entries + * in the entry part, and also indicates the index where the + * next new property would be inserted. It does *not* indicate + * the number of non-NULL keys present in the object. That + * value could be counted separately but requires a pass through + * the key list. + */ + duk_push_uint(ctx, (duk_uint_t) DUK_HOBJECT_GET_ENEXT(h_obj)); + duk_push_uint(ctx, (duk_uint_t) DUK_HOBJECT_GET_ASIZE(h_obj)); + duk_push_uint(ctx, (duk_uint_t) DUK_HOBJECT_GET_HSIZE(h_obj)); + if (DUK_HOBJECT_IS_COMPILEDFUNCTION(h_obj)) { + duk_hbuffer *h_data = (duk_hbuffer *) DUK_HCOMPILEDFUNCTION_GET_DATA(thr->heap, (duk_hcompiledfunction *) h_obj); + if (h_data) { + duk_push_uint(ctx, (duk_uint_t) DUK_HBUFFER_GET_SIZE(h_data)); + } else { + duk_push_uint(ctx, 0); + } + } + break; + } + case DUK_HTYPE_BUFFER: { + duk_hbuffer *h_buf = (duk_hbuffer *) h; + if (DUK_HBUFFER_HAS_DYNAMIC(h_buf)) { + if (DUK_HBUFFER_HAS_EXTERNAL(h_buf)) { + duk_push_uint(ctx, (duk_uint_t) (sizeof(duk_hbuffer_external))); + } else { + /* When alloc_size == 0 the second allocation may not + * actually exist. + */ + duk_push_uint(ctx, (duk_uint_t) (sizeof(duk_hbuffer_dynamic))); + } + duk_push_uint(ctx, (duk_uint_t) (DUK_HBUFFER_GET_SIZE(h_buf))); + } else { + duk_push_uint(ctx, (duk_uint_t) (sizeof(duk_hbuffer_fixed) + DUK_HBUFFER_GET_SIZE(h_buf) + 1)); + } + break; + + } + } + + done: + /* set values into ret array */ + /* XXX: primitive to make array from valstack slice */ + n = duk_get_top(ctx); + for (i = 2; i < n; i++) { + duk_dup(ctx, i); + duk_put_prop_index(ctx, 1, i - 2); + } + duk_dup(ctx, 1); + return 1; +} + +DUK_INTERNAL duk_ret_t duk_bi_duktape_object_act(duk_context *ctx) { + duk_hthread *thr = (duk_hthread *) ctx; + duk_activation *act; + duk_uint_fast32_t pc; + duk_uint_fast32_t line; + duk_int_t level; + + /* -1 = top callstack entry, callstack[callstack_top - 1] + * -callstack_top = bottom callstack entry, callstack[0] + */ + level = duk_to_int(ctx, 0); + if (level >= 0 || -level > (duk_int_t) thr->callstack_top) { + return 0; + } + DUK_ASSERT(level >= -((duk_int_t) thr->callstack_top) && level <= -1); + act = thr->callstack + thr->callstack_top + level; + + duk_push_object(ctx); + + duk_push_tval(ctx, &act->tv_func); + + /* Relevant PC is just before current one because PC is + * post-incremented. This should match what error augment + * code does. + */ + pc = duk_hthread_get_act_prev_pc(thr, act); + duk_push_uint(ctx, (duk_uint_t) pc); + +#if defined(DUK_USE_PC2LINE) + line = duk_hobject_pc2line_query(ctx, -2, pc); +#else + line = 0; +#endif + duk_push_uint(ctx, (duk_uint_t) line); + + /* Providing access to e.g. act->lex_env would be dangerous: these + * internal structures must never be accessible to the application. + * Duktape relies on them having consistent data, and this consistency + * is only asserted for, not checked for. + */ + + /* [ level obj func pc line ] */ + + /* XXX: version specific array format instead? */ + duk_xdef_prop_stridx_wec(ctx, -4, DUK_STRIDX_LINE_NUMBER); + duk_xdef_prop_stridx_wec(ctx, -3, DUK_STRIDX_PC); + duk_xdef_prop_stridx_wec(ctx, -2, DUK_STRIDX_LC_FUNCTION); + return 1; +} + +DUK_INTERNAL duk_ret_t duk_bi_duktape_object_gc(duk_context *ctx) { +#ifdef DUK_USE_MARK_AND_SWEEP + duk_hthread *thr = (duk_hthread *) ctx; + duk_small_uint_t flags; + duk_bool_t rc; + + flags = (duk_small_uint_t) duk_get_uint(ctx, 0); + rc = duk_heap_mark_and_sweep(thr->heap, flags); + + /* XXX: Not sure what the best return value would be in the API. + * Return a boolean for now. Note that rc == 0 is success (true). + */ + duk_push_boolean(ctx, !rc); + return 1; +#else + DUK_UNREF(ctx); + return 0; +#endif +} + +DUK_INTERNAL duk_ret_t duk_bi_duktape_object_fin(duk_context *ctx) { + (void) duk_require_hobject(ctx, 0); + if (duk_get_top(ctx) >= 2) { + /* Set: currently a finalizer is disabled by setting it to + * undefined; this does not remove the property at the moment. + * The value could be type checked to be either a function + * or something else; if something else, the property could + * be deleted. + */ + duk_set_top(ctx, 2); + (void) duk_put_prop_stridx(ctx, 0, DUK_STRIDX_INT_FINALIZER); + return 0; + } else { + /* Get. */ + DUK_ASSERT(duk_get_top(ctx) == 1); + duk_get_prop_stridx(ctx, 0, DUK_STRIDX_INT_FINALIZER); + return 1; + } +} + +DUK_INTERNAL duk_ret_t duk_bi_duktape_object_enc(duk_context *ctx) { + duk_hthread *thr = (duk_hthread *) ctx; + duk_hstring *h_str; + + DUK_UNREF(thr); + + /* Vararg function: must be careful to check/require arguments. + * The JSON helpers accept invalid indices and treat them like + * non-existent optional parameters. + */ + + h_str = duk_require_hstring(ctx, 0); + duk_require_valid_index(ctx, 1); + + if (h_str == DUK_HTHREAD_STRING_HEX(thr)) { + duk_set_top(ctx, 2); + duk_hex_encode(ctx, 1); + DUK_ASSERT_TOP(ctx, 2); + } else if (h_str == DUK_HTHREAD_STRING_BASE64(thr)) { + duk_set_top(ctx, 2); + duk_base64_encode(ctx, 1); + DUK_ASSERT_TOP(ctx, 2); +#ifdef DUK_USE_JX + } else if (h_str == DUK_HTHREAD_STRING_JX(thr)) { + duk_bi_json_stringify_helper(ctx, + 1 /*idx_value*/, + 2 /*idx_replacer*/, + 3 /*idx_space*/, + DUK_JSON_FLAG_EXT_CUSTOM | + DUK_JSON_FLAG_ASCII_ONLY | + DUK_JSON_FLAG_AVOID_KEY_QUOTES /*flags*/); +#endif +#ifdef DUK_USE_JC + } else if (h_str == DUK_HTHREAD_STRING_JC(thr)) { + duk_bi_json_stringify_helper(ctx, + 1 /*idx_value*/, + 2 /*idx_replacer*/, + 3 /*idx_space*/, + DUK_JSON_FLAG_EXT_COMPATIBLE | + DUK_JSON_FLAG_ASCII_ONLY /*flags*/); +#endif + } else { + return DUK_RET_TYPE_ERROR; + } + return 1; +} + +DUK_INTERNAL duk_ret_t duk_bi_duktape_object_dec(duk_context *ctx) { + duk_hthread *thr = (duk_hthread *) ctx; + duk_hstring *h_str; + + DUK_UNREF(thr); + + /* Vararg function: must be careful to check/require arguments. + * The JSON helpers accept invalid indices and treat them like + * non-existent optional parameters. + */ + + h_str = duk_require_hstring(ctx, 0); + duk_require_valid_index(ctx, 1); + + if (h_str == DUK_HTHREAD_STRING_HEX(thr)) { + duk_set_top(ctx, 2); + duk_hex_decode(ctx, 1); + DUK_ASSERT_TOP(ctx, 2); + } else if (h_str == DUK_HTHREAD_STRING_BASE64(thr)) { + duk_set_top(ctx, 2); + duk_base64_decode(ctx, 1); + DUK_ASSERT_TOP(ctx, 2); +#ifdef DUK_USE_JX + } else if (h_str == DUK_HTHREAD_STRING_JX(thr)) { + duk_bi_json_parse_helper(ctx, + 1 /*idx_value*/, + 2 /*idx_replacer*/, + DUK_JSON_FLAG_EXT_CUSTOM /*flags*/); +#endif +#ifdef DUK_USE_JC + } else if (h_str == DUK_HTHREAD_STRING_JC(thr)) { + duk_bi_json_parse_helper(ctx, + 1 /*idx_value*/, + 2 /*idx_replacer*/, + DUK_JSON_FLAG_EXT_COMPATIBLE /*flags*/); +#endif + } else { + return DUK_RET_TYPE_ERROR; + } + return 1; +} + +/* + * Compact an object + */ + +DUK_INTERNAL duk_ret_t duk_bi_duktape_object_compact(duk_context *ctx) { + DUK_ASSERT_TOP(ctx, 1); + duk_compact(ctx, 0); + return 1; /* return the argument object */ +} +#line 1 "duk_bi_error.c" +/* + * Error built-ins + */ + +/* include removed: duk_internal.h */ + +DUK_INTERNAL duk_ret_t duk_bi_error_constructor_shared(duk_context *ctx) { + /* Behavior for constructor and non-constructor call is + * the same except for augmenting the created error. When + * called as a constructor, the caller (duk_new()) will handle + * augmentation; when called as normal function, we need to do + * it here. + */ + + duk_hthread *thr = (duk_hthread *) ctx; + duk_small_int_t bidx_prototype = duk_get_current_magic(ctx); + + /* same for both error and each subclass like TypeError */ + duk_uint_t flags_and_class = DUK_HOBJECT_FLAG_EXTENSIBLE | + DUK_HOBJECT_CLASS_AS_FLAGS(DUK_HOBJECT_CLASS_ERROR); + + DUK_UNREF(thr); + + duk_push_object_helper(ctx, flags_and_class, bidx_prototype); + + /* If message is undefined, the own property 'message' is not set at + * all to save property space. An empty message is inherited anyway. + */ + if (!duk_is_undefined(ctx, 0)) { + duk_to_string(ctx, 0); + duk_dup(ctx, 0); /* [ message error message ] */ + duk_xdef_prop_stridx(ctx, -2, DUK_STRIDX_MESSAGE, DUK_PROPDESC_FLAGS_WC); + } + + /* Augment the error if called as a normal function. __FILE__ and __LINE__ + * are not desirable in this case. + */ + +#ifdef DUK_USE_AUGMENT_ERROR_CREATE + if (!duk_is_constructor_call(ctx)) { + duk_err_augment_error_create(thr, thr, NULL, 0, 1 /*noblame_fileline*/); + } +#endif + + return 1; +} + +DUK_INTERNAL duk_ret_t duk_bi_error_prototype_to_string(duk_context *ctx) { + /* XXX: optimize with more direct internal access */ + + duk_push_this(ctx); + (void) duk_require_hobject_or_lfunc_coerce(ctx, -1); + + /* [ ... this ] */ + + duk_get_prop_stridx(ctx, -1, DUK_STRIDX_NAME); + if (duk_is_undefined(ctx, -1)) { + duk_pop(ctx); + duk_push_string(ctx, "Error"); + } else { + duk_to_string(ctx, -1); + } + + /* [ ... this name ] */ + + /* XXX: Are steps 6 and 7 in E5 Section 15.11.4.4 duplicated by + * accident or are they actually needed? The first ToString() + * could conceivably return 'undefined'. + */ + duk_get_prop_stridx(ctx, -2, DUK_STRIDX_MESSAGE); + if (duk_is_undefined(ctx, -1)) { + duk_pop(ctx); + duk_push_string(ctx, ""); + } else { + duk_to_string(ctx, -1); + } + + /* [ ... this name message ] */ + + if (duk_get_length(ctx, -2) == 0) { + /* name is empty -> return message */ + return 1; + } + if (duk_get_length(ctx, -1) == 0) { + /* message is empty -> return name */ + duk_pop(ctx); + return 1; + } + duk_push_string(ctx, ": "); + duk_insert(ctx, -2); /* ... name ': ' message */ + duk_concat(ctx, 3); + + return 1; +} + +#if defined(DUK_USE_TRACEBACKS) + +/* + * Traceback handling + * + * The unified helper decodes the traceback and produces various requested + * outputs. It should be optimized for size, and may leave garbage on stack, + * only the topmost return value matters. For instance, traceback separator + * and decoded strings are pushed even when looking for filename only. + * + * NOTE: although _Tracedata is an internal property, user code can currently + * write to the array (or replace it with something other than an array). + * The code below must tolerate arbitrary _Tracedata. It can throw errors + * etc, but cannot cause a segfault or memory unsafe behavior. + */ + +/* constants arbitrary, chosen for small loads */ +#define DUK__OUTPUT_TYPE_TRACEBACK (-1) +#define DUK__OUTPUT_TYPE_FILENAME 0 +#define DUK__OUTPUT_TYPE_LINENUMBER 1 + +DUK_LOCAL duk_ret_t duk__error_getter_helper(duk_context *ctx, duk_small_int_t output_type) { + duk_hthread *thr = (duk_hthread *) ctx; + duk_idx_t idx_td; + duk_small_int_t i; /* traceback depth fits into 16 bits */ + duk_small_int_t t; /* stack type fits into 16 bits */ + duk_small_int_t count_func = 0; /* traceback depth ensures fits into 16 bits */ + const char *str_tailcall = " tailcall"; + const char *str_strict = " strict"; + const char *str_construct = " construct"; + const char *str_prevyield = " preventsyield"; + const char *str_directeval = " directeval"; + const char *str_empty = ""; + + DUK_ASSERT_TOP(ctx, 0); /* fixed arg count */ + DUK_UNREF(thr); + + duk_push_this(ctx); + duk_get_prop_stridx(ctx, -1, DUK_STRIDX_INT_TRACEDATA); + idx_td = duk_get_top_index(ctx); + + duk_push_hstring_stridx(ctx, DUK_STRIDX_NEWLINE_4SPACE); + duk_push_this(ctx); + + /* [ ... this tracedata sep this ] */ + + /* XXX: skip null filename? */ + + if (duk_check_type(ctx, idx_td, DUK_TYPE_OBJECT)) { + /* Current tracedata contains 2 entries per callstack entry. */ + for (i = 0; ; i += 2) { + duk_int_t pc; + duk_int_t line; + duk_int_t flags; + duk_double_t d; + const char *funcname; + const char *filename; + duk_hobject *h_func; + duk_hstring *h_name; + + duk_require_stack(ctx, 5); + duk_get_prop_index(ctx, idx_td, i); + duk_get_prop_index(ctx, idx_td, i + 1); + d = duk_to_number(ctx, -1); + pc = (duk_int_t) DUK_FMOD(d, DUK_DOUBLE_2TO32); + flags = (duk_int_t) DUK_FLOOR(d / DUK_DOUBLE_2TO32); + t = (duk_small_int_t) duk_get_type(ctx, -2); + + if (t == DUK_TYPE_OBJECT || t == DUK_TYPE_LIGHTFUNC) { + /* + * Ecmascript/native function call or lightfunc call + */ + + count_func++; + + /* [ ... v1(func) v2(pc+flags) ] */ + + h_func = duk_get_hobject(ctx, -2); /* NULL for lightfunc */ + + duk_get_prop_stridx(ctx, -2, DUK_STRIDX_NAME); + duk_get_prop_stridx(ctx, -3, DUK_STRIDX_FILE_NAME); + +#if defined(DUK_USE_PC2LINE) + line = duk_hobject_pc2line_query(ctx, -4, (duk_uint_fast32_t) pc); +#else + line = 0; +#endif + + /* [ ... v1 v2 name filename ] */ + + /* When looking for .fileName/.lineNumber, blame first + * function which has a .fileName. + */ + if (duk_is_string(ctx, -1)) { + if (output_type == DUK__OUTPUT_TYPE_FILENAME) { + return 1; + } else if (output_type == DUK__OUTPUT_TYPE_LINENUMBER) { + duk_push_int(ctx, line); + return 1; + } + } + + /* XXX: Change 'anon' handling here too, to use empty string for anonymous functions? */ + /* XXX: Could be improved by coercing to a readable duk_tval (especially string escaping) */ + h_name = duk_get_hstring(ctx, -2); /* may be NULL */ + funcname = (h_name == NULL || h_name == DUK_HTHREAD_STRING_EMPTY_STRING(thr)) ? + "[anon]" : (const char *) DUK_HSTRING_GET_DATA(h_name); + filename = duk_get_string(ctx, -1); + filename = filename ? filename : ""; + DUK_ASSERT(funcname != NULL); + DUK_ASSERT(filename != NULL); + + if (h_func == NULL) { + duk_push_sprintf(ctx, "at %s light%s%s%s%s%s", + (const char *) funcname, + (const char *) ((flags & DUK_ACT_FLAG_STRICT) ? str_strict : str_empty), + (const char *) ((flags & DUK_ACT_FLAG_TAILCALLED) ? str_tailcall : str_empty), + (const char *) ((flags & DUK_ACT_FLAG_CONSTRUCT) ? str_construct : str_empty), + (const char *) ((flags & DUK_ACT_FLAG_DIRECT_EVAL) ? str_directeval : str_empty), + (const char *) ((flags & DUK_ACT_FLAG_PREVENT_YIELD) ? str_prevyield : str_empty)); + } else if (DUK_HOBJECT_HAS_NATIVEFUNCTION(h_func)) { + duk_push_sprintf(ctx, "at %s (%s) native%s%s%s%s%s", + (const char *) funcname, + (const char *) filename, + (const char *) ((flags & DUK_ACT_FLAG_STRICT) ? str_strict : str_empty), + (const char *) ((flags & DUK_ACT_FLAG_TAILCALLED) ? str_tailcall : str_empty), + (const char *) ((flags & DUK_ACT_FLAG_CONSTRUCT) ? str_construct : str_empty), + (const char *) ((flags & DUK_ACT_FLAG_DIRECT_EVAL) ? str_directeval : str_empty), + (const char *) ((flags & DUK_ACT_FLAG_PREVENT_YIELD) ? str_prevyield : str_empty)); + } else { + duk_push_sprintf(ctx, "at %s (%s:%ld)%s%s%s%s%s", + (const char *) funcname, + (const char *) filename, + (long) line, + (const char *) ((flags & DUK_ACT_FLAG_STRICT) ? str_strict : str_empty), + (const char *) ((flags & DUK_ACT_FLAG_TAILCALLED) ? str_tailcall : str_empty), + (const char *) ((flags & DUK_ACT_FLAG_CONSTRUCT) ? str_construct : str_empty), + (const char *) ((flags & DUK_ACT_FLAG_DIRECT_EVAL) ? str_directeval : str_empty), + (const char *) ((flags & DUK_ACT_FLAG_PREVENT_YIELD) ? str_prevyield : str_empty)); + } + duk_replace(ctx, -5); /* [ ... v1 v2 name filename str ] -> [ ... str v2 name filename ] */ + duk_pop_n(ctx, 3); /* -> [ ... str ] */ + } else if (t == DUK_TYPE_STRING) { + /* + * __FILE__ / __LINE__ entry, here 'pc' is line number directly. + * Sometimes __FILE__ / __LINE__ is reported as the source for + * the error (fileName, lineNumber), sometimes not. + */ + + /* [ ... v1(filename) v2(line+flags) ] */ + + /* When looking for .fileName/.lineNumber, blame compilation + * or C call site unless flagged not to do so. + */ + if (!(flags & DUK_TB_FLAG_NOBLAME_FILELINE)) { + if (output_type == DUK__OUTPUT_TYPE_FILENAME) { + duk_pop(ctx); + return 1; + } else if (output_type == DUK__OUTPUT_TYPE_LINENUMBER) { + duk_push_int(ctx, pc); + return 1; + } + } + + duk_push_sprintf(ctx, "at [anon] (%s:%ld) internal", + (const char *) duk_get_string(ctx, -2), (long) pc); + duk_replace(ctx, -3); /* [ ... v1 v2 str ] -> [ ... str v2 ] */ + duk_pop(ctx); /* -> [ ... str ] */ + } else { + /* unknown, ignore */ + duk_pop_2(ctx); + break; + } + } + + if (count_func >= DUK_USE_TRACEBACK_DEPTH) { + /* Possibly truncated; there is no explicit truncation + * marker so this is the best we can do. + */ + + duk_push_hstring_stridx(ctx, DUK_STRIDX_BRACKETED_ELLIPSIS); + } + } + + /* [ ... this tracedata sep this str1 ... strN ] */ + + if (output_type != DUK__OUTPUT_TYPE_TRACEBACK) { + return 0; + } else { + /* The 'this' after 'sep' will get ToString() coerced by + * duk_join() automatically. We don't want to do that + * coercion when providing .fileName or .lineNumber (GH-254). + */ + duk_join(ctx, duk_get_top(ctx) - (idx_td + 2) /*count, not including sep*/); + return 1; + } +} + +/* XXX: Output type could be encoded into native function 'magic' value to + * save space. For setters the stridx could be encoded into 'magic'. + */ + +DUK_INTERNAL duk_ret_t duk_bi_error_prototype_stack_getter(duk_context *ctx) { + return duk__error_getter_helper(ctx, DUK__OUTPUT_TYPE_TRACEBACK); +} + +DUK_INTERNAL duk_ret_t duk_bi_error_prototype_filename_getter(duk_context *ctx) { + return duk__error_getter_helper(ctx, DUK__OUTPUT_TYPE_FILENAME); +} + +DUK_INTERNAL duk_ret_t duk_bi_error_prototype_linenumber_getter(duk_context *ctx) { + return duk__error_getter_helper(ctx, DUK__OUTPUT_TYPE_LINENUMBER); +} + +#undef DUK__OUTPUT_TYPE_TRACEBACK +#undef DUK__OUTPUT_TYPE_FILENAME +#undef DUK__OUTPUT_TYPE_LINENUMBER + +#else /* DUK_USE_TRACEBACKS */ + +/* + * Traceback handling when tracebacks disabled. + * + * The fileName / lineNumber stubs are now necessary because built-in + * data will include the accessor properties in Error.prototype. If those + * are removed for builds without tracebacks, these can also be removed. + * 'stack' should still be present and produce a ToString() equivalent: + * this is useful for user code which prints a stacktrace and expects to + * see something useful. A normal stacktrace also begins with a ToString() + * of the error so this makes sense. + */ + +DUK_INTERNAL duk_ret_t duk_bi_error_prototype_stack_getter(duk_context *ctx) { + /* XXX: remove this native function and map 'stack' accessor + * to the toString() implementation directly. + */ + return duk_bi_error_prototype_to_string(ctx); +} + +DUK_INTERNAL duk_ret_t duk_bi_error_prototype_filename_getter(duk_context *ctx) { + DUK_UNREF(ctx); + return 0; +} + +DUK_INTERNAL duk_ret_t duk_bi_error_prototype_linenumber_getter(duk_context *ctx) { + DUK_UNREF(ctx); + return 0; +} + +#endif /* DUK_USE_TRACEBACKS */ + +DUK_LOCAL duk_ret_t duk__error_setter_helper(duk_context *ctx, duk_small_uint_t stridx_key) { + /* Attempt to write 'stack', 'fileName', 'lineNumber' works as if + * user code called Object.defineProperty() to create an overriding + * own property. This allows user code to overwrite .fileName etc + * intuitively as e.g. "err.fileName = 'dummy'" as one might expect. + * See https://github.com/svaarala/duktape/issues/387. + */ + + DUK_ASSERT_TOP(ctx, 1); /* fixed arg count: value */ + + duk_push_this(ctx); + duk_push_hstring_stridx(ctx, (duk_small_int_t) stridx_key); + duk_dup(ctx, 0); + + /* [ ... obj key value ] */ + + DUK_DD(DUK_DDPRINT("error setter: %!T %!T %!T", + duk_get_tval(ctx, -3), duk_get_tval(ctx, -2), duk_get_tval(ctx, -1))); + + duk_def_prop(ctx, -3, DUK_DEFPROP_HAVE_VALUE | + DUK_DEFPROP_HAVE_WRITABLE | DUK_DEFPROP_WRITABLE | + DUK_DEFPROP_HAVE_ENUMERABLE | /*not enumerable*/ + DUK_DEFPROP_HAVE_CONFIGURABLE | DUK_DEFPROP_CONFIGURABLE); + return 0; +} + +DUK_INTERNAL duk_ret_t duk_bi_error_prototype_stack_setter(duk_context *ctx) { + return duk__error_setter_helper(ctx, DUK_STRIDX_STACK); +} + +DUK_INTERNAL duk_ret_t duk_bi_error_prototype_filename_setter(duk_context *ctx) { + return duk__error_setter_helper(ctx, DUK_STRIDX_FILE_NAME); +} + +DUK_INTERNAL duk_ret_t duk_bi_error_prototype_linenumber_setter(duk_context *ctx) { + return duk__error_setter_helper(ctx, DUK_STRIDX_LINE_NUMBER); +} +#line 1 "duk_bi_function.c" +/* + * Function built-ins + */ + +/* include removed: duk_internal.h */ + +DUK_INTERNAL duk_ret_t duk_bi_function_constructor(duk_context *ctx) { + duk_hthread *thr = (duk_hthread *) ctx; + duk_hstring *h_sourcecode; + duk_idx_t nargs; + duk_idx_t i; + duk_small_uint_t comp_flags; + duk_hcompiledfunction *func; + duk_hobject *outer_lex_env; + duk_hobject *outer_var_env; + + /* normal and constructor calls have identical semantics */ + + nargs = duk_get_top(ctx); + for (i = 0; i < nargs; i++) { + duk_to_string(ctx, i); + } + + if (nargs == 0) { + duk_push_string(ctx, ""); + duk_push_string(ctx, ""); + } else if (nargs == 1) { + /* XXX: cover this with the generic >1 case? */ + duk_push_string(ctx, ""); + } else { + duk_insert(ctx, 0); /* [ arg1 ... argN-1 body] -> [body arg1 ... argN-1] */ + duk_push_string(ctx, ","); + duk_insert(ctx, 1); + duk_join(ctx, nargs - 1); + } + + /* [ body formals ], formals is comma separated list that needs to be parsed */ + + DUK_ASSERT_TOP(ctx, 2); + + /* XXX: this placeholder is not always correct, but use for now. + * It will fail in corner cases; see test-dev-func-cons-args.js. + */ + duk_push_string(ctx, "function("); + duk_dup(ctx, 1); + duk_push_string(ctx, "){"); + duk_dup(ctx, 0); + duk_push_string(ctx, "}"); + duk_concat(ctx, 5); + + /* [ body formals source ] */ + + DUK_ASSERT_TOP(ctx, 3); + + /* strictness is not inherited, intentional */ + comp_flags = DUK_JS_COMPILE_FLAG_FUNCEXPR; + + duk_push_hstring_stridx(ctx, DUK_STRIDX_COMPILE); /* XXX: copy from caller? */ /* XXX: ignored now */ + h_sourcecode = duk_require_hstring(ctx, -2); + duk_js_compile(thr, + (const duk_uint8_t *) DUK_HSTRING_GET_DATA(h_sourcecode), + (duk_size_t) DUK_HSTRING_GET_BYTELEN(h_sourcecode), + comp_flags); + func = (duk_hcompiledfunction *) duk_get_hobject(ctx, -1); + DUK_ASSERT(func != NULL); + DUK_ASSERT(DUK_HOBJECT_IS_COMPILEDFUNCTION((duk_hobject *) func)); + + /* [ body formals source template ] */ + + /* only outer_lex_env matters, as functions always get a new + * variable declaration environment. + */ + + outer_lex_env = thr->builtins[DUK_BIDX_GLOBAL_ENV]; + outer_var_env = thr->builtins[DUK_BIDX_GLOBAL_ENV]; + + duk_js_push_closure(thr, func, outer_var_env, outer_lex_env, 1 /*add_auto_proto*/); + + /* [ body formals source template closure ] */ + + return 1; +} + +DUK_INTERNAL duk_ret_t duk_bi_function_prototype(duk_context *ctx) { + /* ignore arguments, return undefined (E5 Section 15.3.4) */ + DUK_UNREF(ctx); + return 0; +} + +DUK_INTERNAL duk_ret_t duk_bi_function_prototype_to_string(duk_context *ctx) { + duk_tval *tv; + + /* + * E5 Section 15.3.4.2 places few requirements on the output of + * this function: + * + * - The result is an implementation dependent representation + * of the function; in particular + * + * - The result must follow the syntax of a FunctionDeclaration. + * In particular, the function must have a name (even in the + * case of an anonymous function or a function with an empty + * name). + * + * - Note in particular that the output does NOT need to compile + * into anything useful. + */ + + + /* XXX: faster internal way to get this */ + duk_push_this(ctx); + tv = duk_get_tval(ctx, -1); + DUK_ASSERT(tv != NULL); + + if (DUK_TVAL_IS_OBJECT(tv)) { + duk_hobject *obj = DUK_TVAL_GET_OBJECT(tv); + const char *func_name; + + /* Function name: missing/undefined is mapped to empty string, + * otherwise coerce to string. + */ + /* XXX: currently no handling for non-allowed identifier characters, + * e.g. a '{' in the function name. + */ + duk_get_prop_stridx(ctx, -1, DUK_STRIDX_NAME); + if (duk_is_undefined(ctx, -1)) { + func_name = ""; + } else { + func_name = duk_to_string(ctx, -1); + DUK_ASSERT(func_name != NULL); + } + + /* Indicate function type in the function body using a dummy + * directive. + */ + if (DUK_HOBJECT_HAS_COMPILEDFUNCTION(obj)) { + duk_push_sprintf(ctx, "function %s() {\"ecmascript\"}", (const char *) func_name); + } else if (DUK_HOBJECT_HAS_NATIVEFUNCTION(obj)) { + duk_push_sprintf(ctx, "function %s() {\"native\"}", (const char *) func_name); + } else if (DUK_HOBJECT_HAS_BOUND(obj)) { + duk_push_sprintf(ctx, "function %s() {\"bound\"}", (const char *) func_name); + } else { + goto type_error; + } + } else if (DUK_TVAL_IS_LIGHTFUNC(tv)) { + duk_push_lightfunc_tostring(ctx, tv); + } else { + goto type_error; + } + + return 1; + + type_error: + return DUK_RET_TYPE_ERROR; +} + +DUK_INTERNAL duk_ret_t duk_bi_function_prototype_apply(duk_context *ctx) { + duk_idx_t len; + duk_idx_t i; + + DUK_ASSERT_TOP(ctx, 2); /* not a vararg function */ + + duk_push_this(ctx); + if (!duk_is_callable(ctx, -1)) { + DUK_DDD(DUK_DDDPRINT("func is not callable")); + goto type_error; + } + duk_insert(ctx, 0); + DUK_ASSERT_TOP(ctx, 3); + + DUK_DDD(DUK_DDDPRINT("func=%!iT, thisArg=%!iT, argArray=%!iT", + (duk_tval *) duk_get_tval(ctx, 0), + (duk_tval *) duk_get_tval(ctx, 1), + (duk_tval *) duk_get_tval(ctx, 2))); + + /* [ func thisArg argArray ] */ + + if (duk_is_null_or_undefined(ctx, 2)) { + DUK_DDD(DUK_DDDPRINT("argArray is null/undefined, no args")); + len = 0; + } else if (!duk_is_object(ctx, 2)) { + goto type_error; + } else { + DUK_DDD(DUK_DDDPRINT("argArray is an object")); + + /* XXX: make this an internal helper */ + duk_get_prop_stridx(ctx, 2, DUK_STRIDX_LENGTH); + len = (duk_idx_t) duk_to_uint32(ctx, -1); /* ToUint32() coercion required */ + duk_pop(ctx); + + duk_require_stack(ctx, len); + + DUK_DDD(DUK_DDDPRINT("argArray length is %ld", (long) len)); + for (i = 0; i < len; i++) { + duk_get_prop_index(ctx, 2, i); + } + } + duk_remove(ctx, 2); + DUK_ASSERT_TOP(ctx, 2 + len); + + /* [ func thisArg arg1 ... argN ] */ + + DUK_DDD(DUK_DDDPRINT("apply, func=%!iT, thisArg=%!iT, len=%ld", + (duk_tval *) duk_get_tval(ctx, 0), + (duk_tval *) duk_get_tval(ctx, 1), + (long) len)); + duk_call_method(ctx, len); + return 1; + + type_error: + return DUK_RET_TYPE_ERROR; +} + +DUK_INTERNAL duk_ret_t duk_bi_function_prototype_call(duk_context *ctx) { + duk_idx_t nargs; + + /* Step 1 is not necessary because duk_call_method() will take + * care of it. + */ + + /* vararg function, thisArg needs special handling */ + nargs = duk_get_top(ctx); /* = 1 + arg count */ + if (nargs == 0) { + duk_push_undefined(ctx); + nargs++; + } + DUK_ASSERT(nargs >= 1); + + /* [ thisArg arg1 ... argN ] */ + + duk_push_this(ctx); /* 'func' in the algorithm */ + duk_insert(ctx, 0); + + /* [ func thisArg arg1 ... argN ] */ + + DUK_DDD(DUK_DDDPRINT("func=%!iT, thisArg=%!iT, argcount=%ld, top=%ld", + (duk_tval *) duk_get_tval(ctx, 0), + (duk_tval *) duk_get_tval(ctx, 1), + (long) (nargs - 1), + (long) duk_get_top(ctx))); + duk_call_method(ctx, nargs - 1); + return 1; +} + +/* XXX: the implementation now assumes "chained" bound functions, + * whereas "collapsed" bound functions (where there is ever only + * one bound function which directly points to a non-bound, final + * function) would require a "collapsing" implementation which + * merges argument lists etc here. + */ +DUK_INTERNAL duk_ret_t duk_bi_function_prototype_bind(duk_context *ctx) { + duk_hobject *h_bound; + duk_hobject *h_target; + duk_idx_t nargs; + duk_idx_t i; + + /* vararg function, careful arg handling (e.g. thisArg may not be present) */ + nargs = duk_get_top(ctx); /* = 1 + arg count */ + if (nargs == 0) { + duk_push_undefined(ctx); + nargs++; + } + DUK_ASSERT(nargs >= 1); + + duk_push_this(ctx); + if (!duk_is_callable(ctx, -1)) { + DUK_DDD(DUK_DDDPRINT("func is not callable")); + goto type_error; + } + + /* [ thisArg arg1 ... argN func ] (thisArg+args == nargs total) */ + DUK_ASSERT_TOP(ctx, nargs + 1); + + /* create bound function object */ + duk_push_object_helper(ctx, + DUK_HOBJECT_FLAG_EXTENSIBLE | + DUK_HOBJECT_FLAG_BOUND | + DUK_HOBJECT_FLAG_CONSTRUCTABLE | + DUK_HOBJECT_CLASS_AS_FLAGS(DUK_HOBJECT_CLASS_FUNCTION), + DUK_BIDX_FUNCTION_PROTOTYPE); + h_bound = duk_get_hobject(ctx, -1); + DUK_ASSERT(h_bound != NULL); + + /* [ thisArg arg1 ... argN func boundFunc ] */ + duk_dup(ctx, -2); /* func */ + duk_xdef_prop_stridx(ctx, -2, DUK_STRIDX_INT_TARGET, DUK_PROPDESC_FLAGS_NONE); + + duk_dup(ctx, 0); /* thisArg */ + duk_xdef_prop_stridx(ctx, -2, DUK_STRIDX_INT_THIS, DUK_PROPDESC_FLAGS_NONE); + + duk_push_array(ctx); + + /* [ thisArg arg1 ... argN func boundFunc argArray ] */ + + for (i = 0; i < nargs - 1; i++) { + duk_dup(ctx, 1 + i); + duk_put_prop_index(ctx, -2, i); + } + duk_xdef_prop_stridx(ctx, -2, DUK_STRIDX_INT_ARGS, DUK_PROPDESC_FLAGS_NONE); + + /* [ thisArg arg1 ... argN func boundFunc ] */ + + /* bound function 'length' property is interesting */ + h_target = duk_get_hobject(ctx, -2); + if (h_target == NULL || /* lightfunc */ + DUK_HOBJECT_GET_CLASS_NUMBER(h_target) == DUK_HOBJECT_CLASS_FUNCTION) { + /* For lightfuncs, simply read the virtual property. */ + duk_int_t tmp; + duk_get_prop_stridx(ctx, -2, DUK_STRIDX_LENGTH); + tmp = duk_to_int(ctx, -1) - (nargs - 1); /* step 15.a */ + duk_pop(ctx); + duk_push_int(ctx, (tmp < 0 ? 0 : tmp)); + } else { + duk_push_int(ctx, 0); + } + duk_xdef_prop_stridx(ctx, -2, DUK_STRIDX_LENGTH, DUK_PROPDESC_FLAGS_NONE); /* attrs in E5 Section 15.3.5.1 */ + + /* caller and arguments must use the same thrower, [[ThrowTypeError]] */ + duk_xdef_prop_stridx_thrower(ctx, -1, DUK_STRIDX_CALLER, DUK_PROPDESC_FLAGS_NONE); + duk_xdef_prop_stridx_thrower(ctx, -1, DUK_STRIDX_LC_ARGUMENTS, DUK_PROPDESC_FLAGS_NONE); + + /* these non-standard properties are copied for convenience */ + /* XXX: 'copy properties' API call? */ + duk_get_prop_stridx(ctx, -2, DUK_STRIDX_NAME); + duk_xdef_prop_stridx(ctx, -2, DUK_STRIDX_NAME, DUK_PROPDESC_FLAGS_WC); + duk_get_prop_stridx(ctx, -2, DUK_STRIDX_FILE_NAME); + duk_xdef_prop_stridx(ctx, -2, DUK_STRIDX_FILE_NAME, DUK_PROPDESC_FLAGS_WC); + + /* The 'strict' flag is copied to get the special [[Get]] of E5.1 + * Section 15.3.5.4 to apply when a 'caller' value is a strict bound + * function. Not sure if this is correct, because the specification + * is a bit ambiguous on this point but it would make sense. + */ + if (h_target == NULL) { + /* Lightfuncs are always strict. */ + DUK_HOBJECT_SET_STRICT(h_bound); + } else if (DUK_HOBJECT_HAS_STRICT(h_target)) { + DUK_HOBJECT_SET_STRICT(h_bound); + } + DUK_DDD(DUK_DDDPRINT("created bound function: %!iT", (duk_tval *) duk_get_tval(ctx, -1))); + + return 1; + + type_error: + return DUK_RET_TYPE_ERROR; +} +#line 1 "duk_bi_global.c" +/* + * Global object built-ins + */ + +/* include removed: duk_internal.h */ + +/* + * Encoding/decoding helpers + */ + +/* XXX: Could add fast path (for each transform callback) with direct byte + * lookups (no shifting) and no explicit check for x < 0x80 before table + * lookup. + */ + +/* Macros for creating and checking bitmasks for character encoding. + * Bit number is a bit counterintuitive, but minimizes code size. + */ +#define DUK__MKBITS(a,b,c,d,e,f,g,h) ((duk_uint8_t) ( \ + ((a) << 0) | ((b) << 1) | ((c) << 2) | ((d) << 3) | \ + ((e) << 4) | ((f) << 5) | ((g) << 6) | ((h) << 7) \ + )) +#define DUK__CHECK_BITMASK(table,cp) ((table)[(cp) >> 3] & (1 << ((cp) & 0x07))) + +/* E5.1 Section 15.1.3.3: uriReserved + uriUnescaped + '#' */ +DUK_LOCAL const duk_uint8_t duk__encode_uriunescaped_table[16] = { + DUK__MKBITS(0, 0, 0, 0, 0, 0, 0, 0), DUK__MKBITS(0, 0, 0, 0, 0, 0, 0, 0), /* 0x00-0x0f */ + DUK__MKBITS(0, 0, 0, 0, 0, 0, 0, 0), DUK__MKBITS(0, 0, 0, 0, 0, 0, 0, 0), /* 0x10-0x1f */ + DUK__MKBITS(0, 1, 0, 1, 1, 0, 1, 1), DUK__MKBITS(1, 1, 1, 1, 1, 1, 1, 1), /* 0x20-0x2f */ + DUK__MKBITS(1, 1, 1, 1, 1, 1, 1, 1), DUK__MKBITS(1, 1, 1, 1, 0, 1, 0, 1), /* 0x30-0x3f */ + DUK__MKBITS(1, 1, 1, 1, 1, 1, 1, 1), DUK__MKBITS(1, 1, 1, 1, 1, 1, 1, 1), /* 0x40-0x4f */ + DUK__MKBITS(1, 1, 1, 1, 1, 1, 1, 1), DUK__MKBITS(1, 1, 1, 0, 0, 0, 0, 1), /* 0x50-0x5f */ + DUK__MKBITS(0, 1, 1, 1, 1, 1, 1, 1), DUK__MKBITS(1, 1, 1, 1, 1, 1, 1, 1), /* 0x60-0x6f */ + DUK__MKBITS(1, 1, 1, 1, 1, 1, 1, 1), DUK__MKBITS(1, 1, 1, 0, 0, 0, 1, 0), /* 0x70-0x7f */ +}; + +/* E5.1 Section 15.1.3.4: uriUnescaped */ +DUK_LOCAL const duk_uint8_t duk__encode_uricomponent_unescaped_table[16] = { + DUK__MKBITS(0, 0, 0, 0, 0, 0, 0, 0), DUK__MKBITS(0, 0, 0, 0, 0, 0, 0, 0), /* 0x00-0x0f */ + DUK__MKBITS(0, 0, 0, 0, 0, 0, 0, 0), DUK__MKBITS(0, 0, 0, 0, 0, 0, 0, 0), /* 0x10-0x1f */ + DUK__MKBITS(0, 1, 0, 0, 0, 0, 0, 1), DUK__MKBITS(1, 1, 1, 0, 0, 1, 1, 0), /* 0x20-0x2f */ + DUK__MKBITS(1, 1, 1, 1, 1, 1, 1, 1), DUK__MKBITS(1, 1, 0, 0, 0, 0, 0, 0), /* 0x30-0x3f */ + DUK__MKBITS(0, 1, 1, 1, 1, 1, 1, 1), DUK__MKBITS(1, 1, 1, 1, 1, 1, 1, 1), /* 0x40-0x4f */ + DUK__MKBITS(1, 1, 1, 1, 1, 1, 1, 1), DUK__MKBITS(1, 1, 1, 0, 0, 0, 0, 1), /* 0x50-0x5f */ + DUK__MKBITS(0, 1, 1, 1, 1, 1, 1, 1), DUK__MKBITS(1, 1, 1, 1, 1, 1, 1, 1), /* 0x60-0x6f */ + DUK__MKBITS(1, 1, 1, 1, 1, 1, 1, 1), DUK__MKBITS(1, 1, 1, 0, 0, 0, 1, 0), /* 0x70-0x7f */ +}; + +/* E5.1 Section 15.1.3.1: uriReserved + '#' */ +DUK_LOCAL const duk_uint8_t duk__decode_uri_reserved_table[16] = { + DUK__MKBITS(0, 0, 0, 0, 0, 0, 0, 0), DUK__MKBITS(0, 0, 0, 0, 0, 0, 0, 0), /* 0x00-0x0f */ + DUK__MKBITS(0, 0, 0, 0, 0, 0, 0, 0), DUK__MKBITS(0, 0, 0, 0, 0, 0, 0, 0), /* 0x10-0x1f */ + DUK__MKBITS(0, 0, 0, 1, 1, 0, 1, 0), DUK__MKBITS(0, 0, 0, 1, 1, 0, 0, 1), /* 0x20-0x2f */ + DUK__MKBITS(0, 0, 0, 0, 0, 0, 0, 0), DUK__MKBITS(0, 0, 1, 1, 0, 1, 0, 1), /* 0x30-0x3f */ + DUK__MKBITS(1, 0, 0, 0, 0, 0, 0, 0), DUK__MKBITS(0, 0, 0, 0, 0, 0, 0, 0), /* 0x40-0x4f */ + DUK__MKBITS(0, 0, 0, 0, 0, 0, 0, 0), DUK__MKBITS(0, 0, 0, 0, 0, 0, 0, 0), /* 0x50-0x5f */ + DUK__MKBITS(0, 0, 0, 0, 0, 0, 0, 0), DUK__MKBITS(0, 0, 0, 0, 0, 0, 0, 0), /* 0x60-0x6f */ + DUK__MKBITS(0, 0, 0, 0, 0, 0, 0, 0), DUK__MKBITS(0, 0, 0, 0, 0, 0, 0, 0), /* 0x70-0x7f */ +}; + +/* E5.1 Section 15.1.3.2: empty */ +DUK_LOCAL const duk_uint8_t duk__decode_uri_component_reserved_table[16] = { + DUK__MKBITS(0, 0, 0, 0, 0, 0, 0, 0), DUK__MKBITS(0, 0, 0, 0, 0, 0, 0, 0), /* 0x00-0x0f */ + DUK__MKBITS(0, 0, 0, 0, 0, 0, 0, 0), DUK__MKBITS(0, 0, 0, 0, 0, 0, 0, 0), /* 0x10-0x1f */ + DUK__MKBITS(0, 0, 0, 0, 0, 0, 0, 0), DUK__MKBITS(0, 0, 0, 0, 0, 0, 0, 0), /* 0x20-0x2f */ + DUK__MKBITS(0, 0, 0, 0, 0, 0, 0, 0), DUK__MKBITS(0, 0, 0, 0, 0, 0, 0, 0), /* 0x30-0x3f */ + DUK__MKBITS(0, 0, 0, 0, 0, 0, 0, 0), DUK__MKBITS(0, 0, 0, 0, 0, 0, 0, 0), /* 0x40-0x4f */ + DUK__MKBITS(0, 0, 0, 0, 0, 0, 0, 0), DUK__MKBITS(0, 0, 0, 0, 0, 0, 0, 0), /* 0x50-0x5f */ + DUK__MKBITS(0, 0, 0, 0, 0, 0, 0, 0), DUK__MKBITS(0, 0, 0, 0, 0, 0, 0, 0), /* 0x60-0x6f */ + DUK__MKBITS(0, 0, 0, 0, 0, 0, 0, 0), DUK__MKBITS(0, 0, 0, 0, 0, 0, 0, 0), /* 0x70-0x7f */ +}; + +#ifdef DUK_USE_SECTION_B +/* E5.1 Section B.2.2, step 7. */ +DUK_LOCAL const duk_uint8_t duk__escape_unescaped_table[16] = { + DUK__MKBITS(0, 0, 0, 0, 0, 0, 0, 0), DUK__MKBITS(0, 0, 0, 0, 0, 0, 0, 0), /* 0x00-0x0f */ + DUK__MKBITS(0, 0, 0, 0, 0, 0, 0, 0), DUK__MKBITS(0, 0, 0, 0, 0, 0, 0, 0), /* 0x10-0x1f */ + DUK__MKBITS(0, 0, 0, 0, 0, 0, 0, 0), DUK__MKBITS(0, 0, 1, 1, 0, 1, 1, 1), /* 0x20-0x2f */ + DUK__MKBITS(1, 1, 1, 1, 1, 1, 1, 1), DUK__MKBITS(1, 1, 0, 0, 0, 0, 0, 0), /* 0x30-0x3f */ + DUK__MKBITS(1, 1, 1, 1, 1, 1, 1, 1), DUK__MKBITS(1, 1, 1, 1, 1, 1, 1, 1), /* 0x40-0x4f */ + DUK__MKBITS(1, 1, 1, 1, 1, 1, 1, 1), DUK__MKBITS(1, 1, 1, 0, 0, 0, 0, 1), /* 0x50-0x5f */ + DUK__MKBITS(0, 1, 1, 1, 1, 1, 1, 1), DUK__MKBITS(1, 1, 1, 1, 1, 1, 1, 1), /* 0x60-0x6f */ + DUK__MKBITS(1, 1, 1, 1, 1, 1, 1, 1), DUK__MKBITS(1, 1, 1, 0, 0, 0, 0, 0) /* 0x70-0x7f */ +}; +#endif /* DUK_USE_SECTION_B */ + +#undef DUK__MKBITS + +typedef struct { + duk_hthread *thr; + duk_hstring *h_str; + duk_bufwriter_ctx bw; + const duk_uint8_t *p; + const duk_uint8_t *p_start; + const duk_uint8_t *p_end; +} duk__transform_context; + +typedef void (*duk__transform_callback)(duk__transform_context *tfm_ctx, const void *udata, duk_codepoint_t cp); + +/* XXX: refactor and share with other code */ +DUK_LOCAL duk_small_int_t duk__decode_hex_escape(const duk_uint8_t *p, duk_small_int_t n) { + duk_small_int_t ch; + duk_small_int_t t = 0; + + while (n > 0) { + t = t * 16; + ch = (duk_small_int_t) duk_hex_dectab[*p++]; + if (DUK_LIKELY(ch >= 0)) { + t += ch; + } else { + return -1; + } + n--; + } + return t; +} + +DUK_LOCAL int duk__transform_helper(duk_context *ctx, duk__transform_callback callback, const void *udata) { + duk_hthread *thr = (duk_hthread *) ctx; + duk__transform_context tfm_ctx_alloc; + duk__transform_context *tfm_ctx = &tfm_ctx_alloc; + duk_codepoint_t cp; + + tfm_ctx->thr = thr; + + tfm_ctx->h_str = duk_to_hstring(ctx, 0); + DUK_ASSERT(tfm_ctx->h_str != NULL); + + DUK_BW_INIT_PUSHBUF(thr, &tfm_ctx->bw, DUK_HSTRING_GET_BYTELEN(tfm_ctx->h_str)); /* initial size guess */ + + tfm_ctx->p_start = DUK_HSTRING_GET_DATA(tfm_ctx->h_str); + tfm_ctx->p_end = tfm_ctx->p_start + DUK_HSTRING_GET_BYTELEN(tfm_ctx->h_str); + tfm_ctx->p = tfm_ctx->p_start; + + while (tfm_ctx->p < tfm_ctx->p_end) { + cp = (duk_codepoint_t) duk_unicode_decode_xutf8_checked(thr, &tfm_ctx->p, tfm_ctx->p_start, tfm_ctx->p_end); + callback(tfm_ctx, udata, cp); + } + + DUK_BW_COMPACT(thr, &tfm_ctx->bw); + + duk_to_string(ctx, -1); + return 1; +} + +DUK_LOCAL void duk__transform_callback_encode_uri(duk__transform_context *tfm_ctx, const void *udata, duk_codepoint_t cp) { + duk_uint8_t xutf8_buf[DUK_UNICODE_MAX_XUTF8_LENGTH]; + duk_small_int_t len; + duk_codepoint_t cp1, cp2; + duk_small_int_t i, t; + const duk_uint8_t *unescaped_table = (const duk_uint8_t *) udata; + + /* UTF-8 encoded bytes escaped as %xx%xx%xx... -> 3 * nbytes. + * Codepoint range is restricted so this is a slightly too large + * but doesn't matter. + */ + DUK_BW_ENSURE(tfm_ctx->thr, &tfm_ctx->bw, 3 * DUK_UNICODE_MAX_XUTF8_LENGTH); + + if (cp < 0) { + goto uri_error; + } else if ((cp < 0x80L) && DUK__CHECK_BITMASK(unescaped_table, cp)) { + DUK_BW_WRITE_RAW_U8(tfm_ctx->thr, &tfm_ctx->bw, (duk_uint8_t) cp); + return; + } else if (cp >= 0xdc00L && cp <= 0xdfffL) { + goto uri_error; + } else if (cp >= 0xd800L && cp <= 0xdbffL) { + /* Needs lookahead */ + if (duk_unicode_decode_xutf8(tfm_ctx->thr, &tfm_ctx->p, tfm_ctx->p_start, tfm_ctx->p_end, (duk_ucodepoint_t *) &cp2) == 0) { + goto uri_error; + } + if (!(cp2 >= 0xdc00L && cp2 <= 0xdfffL)) { + goto uri_error; + } + cp1 = cp; + cp = ((cp1 - 0xd800L) << 10) + (cp2 - 0xdc00L) + 0x10000L; + } else if (cp > 0x10ffffL) { + /* Although we can allow non-BMP characters (they'll decode + * back into surrogate pairs), we don't allow extended UTF-8 + * characters; they would encode to URIs which won't decode + * back because of strict UTF-8 checks in URI decoding. + * (However, we could just as well allow them here.) + */ + goto uri_error; + } else { + /* Non-BMP characters within valid UTF-8 range: encode as is. + * They'll decode back into surrogate pairs if the escaped + * output is decoded. + */ + ; + } + + len = duk_unicode_encode_xutf8((duk_ucodepoint_t) cp, xutf8_buf); + for (i = 0; i < len; i++) { + t = (int) xutf8_buf[i]; + DUK_BW_WRITE_RAW_U8_3(tfm_ctx->thr, + &tfm_ctx->bw, + DUK_ASC_PERCENT, + (duk_uint8_t) duk_uc_nybbles[t >> 4], + (duk_uint8_t) duk_uc_nybbles[t & 0x0f]); + } + + return; + + uri_error: + DUK_ERROR(tfm_ctx->thr, DUK_ERR_URI_ERROR, "invalid input"); +} + +DUK_LOCAL void duk__transform_callback_decode_uri(duk__transform_context *tfm_ctx, const void *udata, duk_codepoint_t cp) { + const duk_uint8_t *reserved_table = (const duk_uint8_t *) udata; + duk_small_uint_t utf8_blen; + duk_codepoint_t min_cp; + duk_small_int_t t; /* must be signed */ + duk_small_uint_t i; + + /* Maximum write size: XUTF8 path writes max DUK_UNICODE_MAX_XUTF8_LENGTH, + * percent escape path writes max two times CESU-8 encoded BMP length. + */ + DUK_BW_ENSURE(tfm_ctx->thr, + &tfm_ctx->bw, + (DUK_UNICODE_MAX_XUTF8_LENGTH >= 2 * DUK_UNICODE_MAX_CESU8_BMP_LENGTH ? + DUK_UNICODE_MAX_XUTF8_LENGTH : DUK_UNICODE_MAX_CESU8_BMP_LENGTH)); + + if (cp == (duk_codepoint_t) '%') { + const duk_uint8_t *p = tfm_ctx->p; + duk_size_t left = (duk_size_t) (tfm_ctx->p_end - p); /* bytes left */ + + DUK_DDD(DUK_DDDPRINT("percent encoding, left=%ld", (long) left)); + + if (left < 2) { + goto uri_error; + } + + t = duk__decode_hex_escape(p, 2); + DUK_DDD(DUK_DDDPRINT("first byte: %ld", (long) t)); + if (t < 0) { + goto uri_error; + } + + if (t < 0x80) { + if (DUK__CHECK_BITMASK(reserved_table, t)) { + /* decode '%xx' to '%xx' if decoded char in reserved set */ + DUK_ASSERT(tfm_ctx->p - 1 >= tfm_ctx->p_start); + DUK_BW_WRITE_RAW_U8_3(tfm_ctx->thr, + &tfm_ctx->bw, + DUK_ASC_PERCENT, + p[0], + p[1]); + } else { + DUK_BW_WRITE_RAW_U8(tfm_ctx->thr, &tfm_ctx->bw, (duk_uint8_t) t); + } + tfm_ctx->p += 2; + return; + } + + /* Decode UTF-8 codepoint from a sequence of hex escapes. The + * first byte of the sequence has been decoded to 't'. + * + * Note that UTF-8 validation must be strict according to the + * specification: E5.1 Section 15.1.3, decode algorithm step + * 4.d.vii.8. URIError from non-shortest encodings is also + * specifically noted in the spec. + */ + + DUK_ASSERT(t >= 0x80); + if (t < 0xc0) { + /* continuation byte */ + goto uri_error; + } else if (t < 0xe0) { + /* 110x xxxx; 2 bytes */ + utf8_blen = 2; + min_cp = 0x80L; + cp = t & 0x1f; + } else if (t < 0xf0) { + /* 1110 xxxx; 3 bytes */ + utf8_blen = 3; + min_cp = 0x800L; + cp = t & 0x0f; + } else if (t < 0xf8) { + /* 1111 0xxx; 4 bytes */ + utf8_blen = 4; + min_cp = 0x10000L; + cp = t & 0x07; + } else { + /* extended utf-8 not allowed for URIs */ + goto uri_error; + } + + if (left < utf8_blen * 3 - 1) { + /* '%xx%xx...%xx', p points to char after first '%' */ + goto uri_error; + } + + p += 3; + for (i = 1; i < utf8_blen; i++) { + /* p points to digit part ('%xy', p points to 'x') */ + t = duk__decode_hex_escape(p, 2); + DUK_DDD(DUK_DDDPRINT("i=%ld utf8_blen=%ld cp=%ld t=0x%02lx", + (long) i, (long) utf8_blen, (long) cp, (unsigned long) t)); + if (t < 0) { + goto uri_error; + } + if ((t & 0xc0) != 0x80) { + goto uri_error; + } + cp = (cp << 6) + (t & 0x3f); + p += 3; + } + p--; /* p overshoots */ + tfm_ctx->p = p; + + DUK_DDD(DUK_DDDPRINT("final cp=%ld, min_cp=%ld", (long) cp, (long) min_cp)); + + if (cp < min_cp || cp > 0x10ffffL || (cp >= 0xd800L && cp <= 0xdfffL)) { + goto uri_error; + } + + /* The E5.1 algorithm checks whether or not a decoded codepoint + * is below 0x80 and perhaps may be in the "reserved" set. + * This seems pointless because the single byte UTF-8 case is + * handled separately, and non-shortest encodings are rejected. + * So, 'cp' cannot be below 0x80 here, and thus cannot be in + * the reserved set. + */ + + /* utf-8 validation ensures these */ + DUK_ASSERT(cp >= 0x80L && cp <= 0x10ffffL); + + if (cp >= 0x10000L) { + cp -= 0x10000L; + DUK_ASSERT(cp < 0x100000L); + + DUK_BW_WRITE_RAW_XUTF8(tfm_ctx->thr, &tfm_ctx->bw, ((cp >> 10) + 0xd800L)); + DUK_BW_WRITE_RAW_XUTF8(tfm_ctx->thr, &tfm_ctx->bw, ((cp & 0x03ffUL) + 0xdc00L)); + } else { + DUK_BW_WRITE_RAW_XUTF8(tfm_ctx->thr, &tfm_ctx->bw, cp); + } + } else { + DUK_BW_WRITE_RAW_XUTF8(tfm_ctx->thr, &tfm_ctx->bw, cp); + } + return; + + uri_error: + DUK_ERROR(tfm_ctx->thr, DUK_ERR_URI_ERROR, "invalid input"); +} + +#ifdef DUK_USE_SECTION_B +DUK_LOCAL void duk__transform_callback_escape(duk__transform_context *tfm_ctx, const void *udata, duk_codepoint_t cp) { + DUK_UNREF(udata); + + DUK_BW_ENSURE(tfm_ctx->thr, &tfm_ctx->bw, 6); + + if (cp < 0) { + goto esc_error; + } else if ((cp < 0x80L) && DUK__CHECK_BITMASK(duk__escape_unescaped_table, cp)) { + DUK_BW_WRITE_RAW_U8(tfm_ctx->thr, &tfm_ctx->bw, (duk_uint8_t) cp); + } else if (cp < 0x100L) { + DUK_BW_WRITE_RAW_U8_3(tfm_ctx->thr, + &tfm_ctx->bw, + (duk_uint8_t) DUK_ASC_PERCENT, + (duk_uint8_t) duk_uc_nybbles[cp >> 4], + (duk_uint8_t) duk_uc_nybbles[cp & 0x0f]); + } else if (cp < 0x10000L) { + DUK_BW_WRITE_RAW_U8_6(tfm_ctx->thr, + &tfm_ctx->bw, + (duk_uint8_t) DUK_ASC_PERCENT, + (duk_uint8_t) DUK_ASC_LC_U, + (duk_uint8_t) duk_uc_nybbles[cp >> 12], + (duk_uint8_t) duk_uc_nybbles[(cp >> 8) & 0x0f], + (duk_uint8_t) duk_uc_nybbles[(cp >> 4) & 0x0f], + (duk_uint8_t) duk_uc_nybbles[cp & 0x0f]); + } else { + /* Characters outside BMP cannot be escape()'d. We could + * encode them as surrogate pairs (for codepoints inside + * valid UTF-8 range, but not extended UTF-8). Because + * escape() and unescape() are legacy functions, we don't. + */ + goto esc_error; + } + + return; + + esc_error: + DUK_ERROR_TYPE(tfm_ctx->thr, "invalid input"); +} + +DUK_LOCAL void duk__transform_callback_unescape(duk__transform_context *tfm_ctx, const void *udata, duk_codepoint_t cp) { + duk_small_int_t t; + + DUK_UNREF(udata); + + if (cp == (duk_codepoint_t) '%') { + const duk_uint8_t *p = tfm_ctx->p; + duk_size_t left = (duk_size_t) (tfm_ctx->p_end - p); /* bytes left */ + + if (left >= 5 && p[0] == 'u' && + ((t = duk__decode_hex_escape(p + 1, 4)) >= 0)) { + cp = (duk_codepoint_t) t; + tfm_ctx->p += 5; + } else if (left >= 2 && + ((t = duk__decode_hex_escape(p, 2)) >= 0)) { + cp = (duk_codepoint_t) t; + tfm_ctx->p += 2; + } + } + + DUK_BW_WRITE_ENSURE_XUTF8(tfm_ctx->thr, &tfm_ctx->bw, cp); +} +#endif /* DUK_USE_SECTION_B */ + +/* + * Eval + * + * Eval needs to handle both a "direct eval" and an "indirect eval". + * Direct eval handling needs access to the caller's activation so that its + * lexical environment can be accessed. A direct eval is only possible from + * Ecmascript code; an indirect eval call is possible also from C code. + * When an indirect eval call is made from C code, there may not be a + * calling activation at all which needs careful handling. + */ + +DUK_INTERNAL duk_ret_t duk_bi_global_object_eval(duk_context *ctx) { + duk_hthread *thr = (duk_hthread *) ctx; + duk_hstring *h; + duk_activation *act_caller; + duk_activation *act_eval; + duk_activation *act; + duk_hcompiledfunction *func; + duk_hobject *outer_lex_env; + duk_hobject *outer_var_env; + duk_bool_t this_to_global = 1; + duk_small_uint_t comp_flags; + duk_int_t level = -2; + + DUK_ASSERT(duk_get_top(ctx) == 1 || duk_get_top(ctx) == 2); /* 2 when called by debugger */ + DUK_ASSERT(thr->callstack_top >= 1); /* at least this function exists */ + DUK_ASSERT(((thr->callstack + thr->callstack_top - 1)->flags & DUK_ACT_FLAG_DIRECT_EVAL) == 0 || /* indirect eval */ + (thr->callstack_top >= 2)); /* if direct eval, calling activation must exist */ + + /* + * callstack_top - 1 --> this function + * callstack_top - 2 --> caller (may not exist) + * + * If called directly from C, callstack_top might be 1. If calling + * activation doesn't exist, call must be indirect. + */ + + h = duk_get_hstring(ctx, 0); + if (!h) { + return 1; /* return arg as-is */ + } + +#if defined(DUK_USE_DEBUGGER_SUPPORT) + /* NOTE: level is used only by the debugger and should never be present + * for an Ecmascript eval(). + */ + DUK_ASSERT(level == -2); /* by default, use caller's environment */ + if (duk_get_top(ctx) >= 2 && duk_is_number(ctx, 1)) { + level = duk_get_int(ctx, 1); + } + DUK_ASSERT(level <= -2); /* This is guaranteed by debugger code. */ +#endif + + /* [ source ] */ + + comp_flags = DUK_JS_COMPILE_FLAG_EVAL; + act_eval = thr->callstack + thr->callstack_top - 1; /* this function */ + if (thr->callstack_top >= (duk_size_t) -level) { + /* Have a calling activation, check for direct eval (otherwise + * assume indirect eval. + */ + act_caller = thr->callstack + thr->callstack_top + level; /* caller */ + if ((act_caller->flags & DUK_ACT_FLAG_STRICT) && + (act_eval->flags & DUK_ACT_FLAG_DIRECT_EVAL)) { + /* Only direct eval inherits strictness from calling code + * (E5.1 Section 10.1.1). + */ + comp_flags |= DUK_JS_COMPILE_FLAG_STRICT; + } + } else { + DUK_ASSERT((act_eval->flags & DUK_ACT_FLAG_DIRECT_EVAL) == 0); + } + act_caller = NULL; /* avoid dereference after potential callstack realloc */ + act_eval = NULL; + + duk_push_hstring_stridx(ctx, DUK_STRIDX_INPUT); /* XXX: copy from caller? */ + duk_js_compile(thr, + (const duk_uint8_t *) DUK_HSTRING_GET_DATA(h), + (duk_size_t) DUK_HSTRING_GET_BYTELEN(h), + comp_flags); + func = (duk_hcompiledfunction *) duk_get_hobject(ctx, -1); + DUK_ASSERT(func != NULL); + DUK_ASSERT(DUK_HOBJECT_IS_COMPILEDFUNCTION((duk_hobject *) func)); + + /* [ source template ] */ + + /* E5 Section 10.4.2 */ + DUK_ASSERT(thr->callstack_top >= 1); + act = thr->callstack + thr->callstack_top - 1; /* this function */ + if (act->flags & DUK_ACT_FLAG_DIRECT_EVAL) { + DUK_ASSERT(thr->callstack_top >= 2); + act = thr->callstack + thr->callstack_top + level; /* caller */ + if (act->lex_env == NULL) { + DUK_ASSERT(act->var_env == NULL); + DUK_DDD(DUK_DDDPRINT("delayed environment initialization")); + + /* this may have side effects, so re-lookup act */ + duk_js_init_activation_environment_records_delayed(thr, act); + act = thr->callstack + thr->callstack_top + level; + } + DUK_ASSERT(act->lex_env != NULL); + DUK_ASSERT(act->var_env != NULL); + + this_to_global = 0; + + if (DUK_HOBJECT_HAS_STRICT((duk_hobject *) func)) { + duk_hobject *new_env; + duk_hobject *act_lex_env; + + DUK_DDD(DUK_DDDPRINT("direct eval call to a strict function -> " + "var_env and lex_env to a fresh env, " + "this_binding to caller's this_binding")); + + act = thr->callstack + thr->callstack_top + level; /* caller */ + act_lex_env = act->lex_env; + act = NULL; /* invalidated */ + + (void) duk_push_object_helper_proto(ctx, + DUK_HOBJECT_FLAG_EXTENSIBLE | + DUK_HOBJECT_CLASS_AS_FLAGS(DUK_HOBJECT_CLASS_DECENV), + act_lex_env); + new_env = duk_require_hobject(ctx, -1); + DUK_ASSERT(new_env != NULL); + DUK_DDD(DUK_DDDPRINT("new_env allocated: %!iO", + (duk_heaphdr *) new_env)); + + outer_lex_env = new_env; + outer_var_env = new_env; + + duk_insert(ctx, 0); /* stash to bottom of value stack to keep new_env reachable for duration of eval */ + + /* compiler's responsibility */ + DUK_ASSERT(DUK_HOBJECT_HAS_NEWENV((duk_hobject *) func)); + } else { + DUK_DDD(DUK_DDDPRINT("direct eval call to a non-strict function -> " + "var_env and lex_env to caller's envs, " + "this_binding to caller's this_binding")); + + outer_lex_env = act->lex_env; + outer_var_env = act->var_env; + + /* compiler's responsibility */ + DUK_ASSERT(!DUK_HOBJECT_HAS_NEWENV((duk_hobject *) func)); + } + } else { + DUK_DDD(DUK_DDDPRINT("indirect eval call -> var_env and lex_env to " + "global object, this_binding to global object")); + + this_to_global = 1; + outer_lex_env = thr->builtins[DUK_BIDX_GLOBAL_ENV]; + outer_var_env = thr->builtins[DUK_BIDX_GLOBAL_ENV]; + } + act = NULL; + + /* Eval code doesn't need an automatic .prototype object. */ + duk_js_push_closure(thr, func, outer_var_env, outer_lex_env, 0 /*add_auto_proto*/); + + /* [ source template closure ] */ + + if (this_to_global) { + DUK_ASSERT(thr->builtins[DUK_BIDX_GLOBAL] != NULL); + duk_push_hobject_bidx(ctx, DUK_BIDX_GLOBAL); + } else { + duk_tval *tv; + DUK_ASSERT(thr->callstack_top >= 2); + act = thr->callstack + thr->callstack_top + level; /* caller */ + tv = thr->valstack + act->idx_bottom - 1; /* this is just beneath bottom */ + DUK_ASSERT(tv >= thr->valstack); + duk_push_tval(ctx, tv); + } + + DUK_DDD(DUK_DDDPRINT("eval -> lex_env=%!iO, var_env=%!iO, this_binding=%!T", + (duk_heaphdr *) outer_lex_env, + (duk_heaphdr *) outer_var_env, + duk_get_tval(ctx, -1))); + + /* [ source template closure this ] */ + + duk_call_method(ctx, 0); + + /* [ source template result ] */ + + return 1; +} + +/* + * Parsing of ints and floats + */ + +DUK_INTERNAL duk_ret_t duk_bi_global_object_parse_int(duk_context *ctx) { + duk_int32_t radix; + duk_small_uint_t s2n_flags; + + DUK_ASSERT_TOP(ctx, 2); + duk_to_string(ctx, 0); + + radix = duk_to_int32(ctx, 1); + + s2n_flags = DUK_S2N_FLAG_TRIM_WHITE | + DUK_S2N_FLAG_ALLOW_GARBAGE | + DUK_S2N_FLAG_ALLOW_PLUS | + DUK_S2N_FLAG_ALLOW_MINUS | + DUK_S2N_FLAG_ALLOW_LEADING_ZERO | + DUK_S2N_FLAG_ALLOW_AUTO_HEX_INT; + + /* Specification stripPrefix maps to DUK_S2N_FLAG_ALLOW_AUTO_HEX_INT. + * + * Don't autodetect octals (from leading zeroes), require user code to + * provide an explicit radix 8 for parsing octal. See write-up from Mozilla: + * https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/parseInt#ECMAScript_5_Removes_Octal_Interpretation + */ + + if (radix != 0) { + if (radix < 2 || radix > 36) { + goto ret_nan; + } + if (radix != 16) { + s2n_flags &= ~DUK_S2N_FLAG_ALLOW_AUTO_HEX_INT; + } + } else { + radix = 10; + } + + duk_dup(ctx, 0); + duk_numconv_parse(ctx, radix, s2n_flags); + return 1; + + ret_nan: + duk_push_nan(ctx); + return 1; +} + +DUK_INTERNAL duk_ret_t duk_bi_global_object_parse_float(duk_context *ctx) { + duk_small_uint_t s2n_flags; + duk_int32_t radix; + + DUK_ASSERT_TOP(ctx, 1); + duk_to_string(ctx, 0); + + radix = 10; + + /* XXX: check flags */ + s2n_flags = DUK_S2N_FLAG_TRIM_WHITE | + DUK_S2N_FLAG_ALLOW_EXP | + DUK_S2N_FLAG_ALLOW_GARBAGE | + DUK_S2N_FLAG_ALLOW_PLUS | + DUK_S2N_FLAG_ALLOW_MINUS | + DUK_S2N_FLAG_ALLOW_INF | + DUK_S2N_FLAG_ALLOW_FRAC | + DUK_S2N_FLAG_ALLOW_NAKED_FRAC | + DUK_S2N_FLAG_ALLOW_EMPTY_FRAC | + DUK_S2N_FLAG_ALLOW_LEADING_ZERO; + + duk_numconv_parse(ctx, radix, s2n_flags); + return 1; +} + +/* + * Number checkers + */ + +DUK_INTERNAL duk_ret_t duk_bi_global_object_is_nan(duk_context *ctx) { + duk_double_t d = duk_to_number(ctx, 0); + duk_push_boolean(ctx, DUK_ISNAN(d)); + return 1; +} + +DUK_INTERNAL duk_ret_t duk_bi_global_object_is_finite(duk_context *ctx) { + duk_double_t d = duk_to_number(ctx, 0); + duk_push_boolean(ctx, DUK_ISFINITE(d)); + return 1; +} + +/* + * URI handling + */ + +DUK_INTERNAL duk_ret_t duk_bi_global_object_decode_uri(duk_context *ctx) { + return duk__transform_helper(ctx, duk__transform_callback_decode_uri, (const void *) duk__decode_uri_reserved_table); +} + +DUK_INTERNAL duk_ret_t duk_bi_global_object_decode_uri_component(duk_context *ctx) { + return duk__transform_helper(ctx, duk__transform_callback_decode_uri, (const void *) duk__decode_uri_component_reserved_table); +} + +DUK_INTERNAL duk_ret_t duk_bi_global_object_encode_uri(duk_context *ctx) { + return duk__transform_helper(ctx, duk__transform_callback_encode_uri, (const void *) duk__encode_uriunescaped_table); +} + +DUK_INTERNAL duk_ret_t duk_bi_global_object_encode_uri_component(duk_context *ctx) { + return duk__transform_helper(ctx, duk__transform_callback_encode_uri, (const void *) duk__encode_uricomponent_unescaped_table); +} + +#ifdef DUK_USE_SECTION_B +DUK_INTERNAL duk_ret_t duk_bi_global_object_escape(duk_context *ctx) { + return duk__transform_helper(ctx, duk__transform_callback_escape, (const void *) NULL); +} + +DUK_INTERNAL duk_ret_t duk_bi_global_object_unescape(duk_context *ctx) { + return duk__transform_helper(ctx, duk__transform_callback_unescape, (const void *) NULL); +} +#else /* DUK_USE_SECTION_B */ +DUK_INTERNAL duk_ret_t duk_bi_global_object_escape(duk_context *ctx) { + DUK_UNREF(ctx); + return DUK_RET_UNSUPPORTED_ERROR; +} + +DUK_INTERNAL duk_ret_t duk_bi_global_object_unescape(duk_context *ctx) { + DUK_UNREF(ctx); + return DUK_RET_UNSUPPORTED_ERROR; +} +#endif /* DUK_USE_SECTION_B */ + +#if defined(DUK_USE_BROWSER_LIKE) && (defined(DUK_USE_FILE_IO) || defined(DUK_USE_DEBUGGER_SUPPORT)) +DUK_INTERNAL duk_ret_t duk_bi_global_object_print_helper(duk_context *ctx) { + duk_hthread *thr = (duk_hthread *) ctx; + duk_int_t magic; + duk_idx_t nargs; + const duk_uint8_t *buf; + duk_size_t sz_buf; + const char nl = (const char) DUK_ASC_LF; +#ifndef DUK_USE_PREFER_SIZE + duk_uint8_t buf_stack[256]; +#endif +#ifdef DUK_USE_FILE_IO + duk_file *f_out; +#endif + + DUK_UNREF(thr); + + magic = duk_get_current_magic(ctx); + DUK_UNREF(magic); + + nargs = duk_get_top(ctx); + + /* If argument count is 1 and first argument is a buffer, write the buffer + * as raw data into the file without a newline; this allows exact control + * over stdout/stderr without an additional entrypoint (useful for now). + * + * Otherwise current print/alert semantics are to ToString() coerce + * arguments, join them with a single space, and append a newline. + */ + + if (nargs == 1 && duk_is_buffer(ctx, 0)) { + buf = (const duk_uint8_t *) duk_get_buffer(ctx, 0, &sz_buf); + DUK_ASSERT(buf != NULL); + } else if (nargs > 0) { +#ifdef DUK_USE_PREFER_SIZE + /* Compact but lots of churn. */ + duk_push_hstring_stridx(thr, DUK_STRIDX_SPACE); + duk_insert(ctx, 0); + duk_join(ctx, nargs); + duk_push_string(thr, "\n"); + duk_concat(ctx, 2); + buf = (const duk_uint8_t *) duk_get_lstring(ctx, -1, &sz_buf); + DUK_ASSERT(buf != NULL); +#else /* DUK_USE_PREFER_SIZE */ + /* Higher footprint, less churn. */ + duk_idx_t i; + duk_size_t sz_str; + const duk_uint8_t *p_str; + duk_uint8_t *p; + + sz_buf = (duk_size_t) nargs; /* spaces (nargs - 1) + newline */ + for (i = 0; i < nargs; i++) { + (void) duk_to_lstring(ctx, i, &sz_str); + sz_buf += sz_str; + } + + if (sz_buf <= sizeof(buf_stack)) { + p = (duk_uint8_t *) buf_stack; + } else { + p = (duk_uint8_t *) duk_push_fixed_buffer(ctx, sz_buf); + DUK_ASSERT(p != NULL); + } + + buf = (const duk_uint8_t *) p; + for (i = 0; i < nargs; i++) { + p_str = (const duk_uint8_t *) duk_get_lstring(ctx, i, &sz_str); + DUK_ASSERT(p_str != NULL); + DUK_MEMCPY((void *) p, (const void *) p_str, sz_str); + p += sz_str; + *p++ = (duk_uint8_t) (i == nargs - 1 ? DUK_ASC_LF : DUK_ASC_SPACE); + } + DUK_ASSERT((const duk_uint8_t *) p == buf + sz_buf); +#endif /* DUK_USE_PREFER_SIZE */ + } else { + buf = (const duk_uint8_t *) &nl; + sz_buf = 1; + } + + /* 'buf' contains the string to write, 'sz_buf' contains the length + * (which may be zero). + */ + DUK_ASSERT(buf != NULL); + + if (sz_buf == 0) { + return 0; + } + +#ifdef DUK_USE_FILE_IO + f_out = (magic ? DUK_STDERR : DUK_STDOUT); + DUK_FWRITE((const void *) buf, 1, (size_t) sz_buf, f_out); + DUK_FFLUSH(f_out); +#endif + +#if defined(DUK_USE_DEBUGGER_SUPPORT) && defined(DUK_USE_DEBUGGER_FWD_PRINTALERT) + if (DUK_HEAP_IS_DEBUGGER_ATTACHED(thr->heap)) { + duk_debug_write_notify(thr, magic ? DUK_DBG_CMD_ALERT : DUK_DBG_CMD_PRINT); + duk_debug_write_string(thr, (const char *) buf, sz_buf); + duk_debug_write_eom(thr); + } +#endif + return 0; +} +#elif defined(DUK_USE_BROWSER_LIKE) /* print provider */ +DUK_INTERNAL duk_ret_t duk_bi_global_object_print_helper(duk_context *ctx) { + DUK_UNREF(ctx); + return 0; +} +#else /* print provider */ +DUK_INTERNAL duk_ret_t duk_bi_global_object_print_helper(duk_context *ctx) { + DUK_UNREF(ctx); + return DUK_RET_UNSUPPORTED_ERROR; +} +#endif /* print provider */ + +/* + * CommonJS require() and modules support + */ + +#if defined(DUK_USE_COMMONJS_MODULES) +DUK_LOCAL void duk__bi_global_resolve_module_id(duk_context *ctx, const char *req_id, const char *mod_id) { + duk_hthread *thr = (duk_hthread *) ctx; + duk_uint8_t buf[DUK_BI_COMMONJS_MODULE_ID_LIMIT]; + duk_uint8_t *p; + duk_uint8_t *q; + duk_uint8_t *q_last; /* last component */ + duk_int_t int_rc; + + DUK_ASSERT(req_id != NULL); + /* mod_id may be NULL */ + + /* + * A few notes on the algorithm: + * + * - Terms are not allowed to begin with a period unless the term + * is either '.' or '..'. This simplifies implementation (and + * is within CommonJS modules specification). + * + * - There are few output bound checks here. This is on purpose: + * the resolution input is length checked and the output is never + * longer than the input. The resolved output is written directly + * over the input because it's never longer than the input at any + * point in the algorithm. + * + * - Non-ASCII characters are processed as individual bytes and + * need no special treatment. However, U+0000 terminates the + * algorithm; this is not an issue because U+0000 is not a + * desirable term character anyway. + */ + + /* + * Set up the resolution input which is the requested ID directly + * (if absolute or no current module path) or with current module + * ID prepended (if relative and current module path exists). + * + * Suppose current module is 'foo/bar' and relative path is './quux'. + * The 'bar' component must be replaced so the initial input here is + * 'foo/bar/.././quux'. + */ + + if (mod_id != NULL && req_id[0] == '.') { + int_rc = DUK_SNPRINTF((char *) buf, sizeof(buf), "%s/../%s", mod_id, req_id); + } else { + int_rc = DUK_SNPRINTF((char *) buf, sizeof(buf), "%s", req_id); + } + if (int_rc >= (duk_int_t) sizeof(buf) || int_rc < 0) { + /* Potentially truncated, NUL not guaranteed in any case. + * The (int_rc < 0) case should not occur in practice. + */ + DUK_DD(DUK_DDPRINT("resolve error: temporary working module ID doesn't fit into resolve buffer")); + goto resolve_error; + } + DUK_ASSERT(DUK_STRLEN((const char *) buf) < sizeof(buf)); /* at most sizeof(buf) - 1 */ + + DUK_DDD(DUK_DDDPRINT("input module id: '%s'", (const char *) buf)); + + /* + * Resolution loop. At the top of the loop we're expecting a valid + * term: '.', '..', or a non-empty identifier not starting with a period. + */ + + p = buf; + q = buf; + for (;;) { + duk_uint_fast8_t c; + + /* Here 'p' always points to the start of a term. + * + * We can also unconditionally reset q_last here: if this is + * the last (non-empty) term q_last will have the right value + * on loop exit. + */ + + DUK_ASSERT(p >= q); /* output is never longer than input during resolution */ + + DUK_DDD(DUK_DDDPRINT("resolve loop top: p -> '%s', q=%p, buf=%p", + (const char *) p, (void *) q, (void *) buf)); + + q_last = q; + + c = *p++; + if (DUK_UNLIKELY(c == 0)) { + DUK_DD(DUK_DDPRINT("resolve error: requested ID must end with a non-empty term")); + goto resolve_error; + } else if (DUK_UNLIKELY(c == '.')) { + c = *p++; + if (c == '/') { + /* Term was '.' and is eaten entirely (including dup slashes). */ + goto eat_dup_slashes; + } + if (c == '.' && *p == '/') { + /* Term was '..', backtrack resolved name by one component. + * q[-1] = previous slash (or beyond start of buffer) + * q[-2] = last char of previous component (or beyond start of buffer) + */ + p++; /* eat (first) input slash */ + DUK_ASSERT(q >= buf); + if (q == buf) { + DUK_DD(DUK_DDPRINT("resolve error: term was '..' but nothing to backtrack")); + goto resolve_error; + } + DUK_ASSERT(*(q - 1) == '/'); + q--; /* backtrack to last output slash (dups already eliminated) */ + for (;;) { + /* Backtrack to previous slash or start of buffer. */ + DUK_ASSERT(q >= buf); + if (q == buf) { + break; + } + if (*(q - 1) == '/') { + break; + } + q--; + } + goto eat_dup_slashes; + } + DUK_DD(DUK_DDPRINT("resolve error: term begins with '.' but is not '.' or '..' (not allowed now)")); + goto resolve_error; + } else if (DUK_UNLIKELY(c == '/')) { + /* e.g. require('/foo'), empty terms not allowed */ + DUK_DD(DUK_DDPRINT("resolve error: empty term (not allowed now)")); + goto resolve_error; + } else { + for (;;) { + /* Copy term name until end or '/'. */ + *q++ = c; + c = *p++; + if (DUK_UNLIKELY(c == 0)) { + /* This was the last term, and q_last was + * updated to match this term at loop top. + */ + goto loop_done; + } else if (DUK_UNLIKELY(c == '/')) { + *q++ = '/'; + break; + } else { + /* write on next loop */ + } + } + } + + eat_dup_slashes: + for (;;) { + /* eat dup slashes */ + c = *p; + if (DUK_LIKELY(c != '/')) { + break; + } + p++; + } + } + loop_done: + /* Output #1: resolved absolute name */ + DUK_ASSERT(q >= buf); + duk_push_lstring(ctx, (const char *) buf, (size_t) (q - buf)); + + /* Output #2: last component name */ + DUK_ASSERT(q >= q_last); + DUK_ASSERT(q_last >= buf); + duk_push_lstring(ctx, (const char *) q_last, (size_t) (q - q_last)); + + DUK_DD(DUK_DDPRINT("after resolving module name: buf=%p, q_last=%p, q=%p", + (void *) buf, (void *) q_last, (void *) q)); + return; + + resolve_error: + DUK_ERROR_FMT1(thr, DUK_ERR_TYPE_ERROR, "cannot resolve module id: %s", (const char *) req_id); +} +#endif /* DUK_USE_COMMONJS_MODULES */ + +#if defined(DUK_USE_COMMONJS_MODULES) +/* Stack indices for better readability */ +#define DUK__IDX_REQUESTED_ID 0 /* Module id requested */ +#define DUK__IDX_REQUIRE 1 /* Current require() function */ +#define DUK__IDX_REQUIRE_ID 2 /* The base ID of the current require() function, resolution base */ +#define DUK__IDX_RESOLVED_ID 3 /* Resolved, normalized absolute module ID */ +#define DUK__IDX_LASTCOMP 4 /* Last component name in resolved path */ +#define DUK__IDX_DUKTAPE 5 /* Duktape object */ +#define DUK__IDX_MODLOADED 6 /* Duktape.modLoaded[] module cache */ +#define DUK__IDX_UNDEFINED 7 /* 'undefined', artifact of lookup */ +#define DUK__IDX_FRESH_REQUIRE 8 /* New require() function for module, updated resolution base */ +#define DUK__IDX_EXPORTS 9 /* Default exports table */ +#define DUK__IDX_MODULE 10 /* Module object containing module.exports, etc */ + +DUK_INTERNAL duk_ret_t duk_bi_global_object_require(duk_context *ctx) { + const char *str_req_id; /* requested identifier */ + const char *str_mod_id; /* require.id of current module */ + duk_int_t pcall_rc; + + /* NOTE: we try to minimize code size by avoiding unnecessary pops, + * so the stack looks a bit cluttered in this function. DUK_ASSERT_TOP() + * assertions are used to ensure stack configuration is correct at each + * step. + */ + + /* + * Resolve module identifier into canonical absolute form. + */ + + str_req_id = duk_require_string(ctx, DUK__IDX_REQUESTED_ID); + duk_push_current_function(ctx); + duk_get_prop_stridx(ctx, -1, DUK_STRIDX_ID); + str_mod_id = duk_get_string(ctx, DUK__IDX_REQUIRE_ID); /* ignore non-strings */ + DUK_DDD(DUK_DDDPRINT("resolve module id: requested=%!T, currentmodule=%!T", + duk_get_tval(ctx, DUK__IDX_REQUESTED_ID), + duk_get_tval(ctx, DUK__IDX_REQUIRE_ID))); + duk__bi_global_resolve_module_id(ctx, str_req_id, str_mod_id); + str_req_id = NULL; + str_mod_id = NULL; + DUK_DDD(DUK_DDDPRINT("resolved module id: requested=%!T, currentmodule=%!T, result=%!T, lastcomp=%!T", + duk_get_tval(ctx, DUK__IDX_REQUESTED_ID), + duk_get_tval(ctx, DUK__IDX_REQUIRE_ID), + duk_get_tval(ctx, DUK__IDX_RESOLVED_ID), + duk_get_tval(ctx, DUK__IDX_LASTCOMP))); + + /* [ requested_id require require.id resolved_id last_comp ] */ + DUK_ASSERT_TOP(ctx, DUK__IDX_LASTCOMP + 1); + + /* + * Cached module check. + * + * If module has been loaded or its loading has already begun without + * finishing, return the same cached value ('exports'). The value is + * registered when module load starts so that circular references can + * be supported to some extent. + */ + + duk_push_hobject_bidx(ctx, DUK_BIDX_DUKTAPE); + duk_get_prop_stridx(ctx, DUK__IDX_DUKTAPE, DUK_STRIDX_MOD_LOADED); /* Duktape.modLoaded */ + (void) duk_require_hobject(ctx, DUK__IDX_MODLOADED); + DUK_ASSERT_TOP(ctx, DUK__IDX_MODLOADED + 1); + + duk_dup(ctx, DUK__IDX_RESOLVED_ID); + if (duk_get_prop(ctx, DUK__IDX_MODLOADED)) { + /* [ requested_id require require.id resolved_id last_comp Duktape Duktape.modLoaded Duktape.modLoaded[id] ] */ + DUK_DD(DUK_DDPRINT("module already loaded: %!T", + duk_get_tval(ctx, DUK__IDX_RESOLVED_ID))); + duk_get_prop_stridx(ctx, -1, DUK_STRIDX_EXPORTS); /* return module.exports */ + return 1; + } + DUK_ASSERT_TOP(ctx, DUK__IDX_UNDEFINED + 1); + + /* [ requested_id require require.id resolved_id last_comp Duktape Duktape.modLoaded undefined ] */ + + /* + * Module not loaded (and loading not started previously). + * + * Create a new require() function with 'id' set to resolved ID + * of module being loaded. Also create 'exports' and 'module' + * tables but don't register exports to the loaded table yet. + * We don't want to do that unless the user module search callbacks + * succeeds in finding the module. + */ + + DUK_D(DUK_DPRINT("loading module %!T, resolution base %!T, requested ID %!T -> resolved ID %!T, last component %!T", + duk_get_tval(ctx, DUK__IDX_RESOLVED_ID), + duk_get_tval(ctx, DUK__IDX_REQUIRE_ID), + duk_get_tval(ctx, DUK__IDX_REQUESTED_ID), + duk_get_tval(ctx, DUK__IDX_RESOLVED_ID), + duk_get_tval(ctx, DUK__IDX_LASTCOMP))); + + /* Fresh require: require.id is left configurable (but not writable) + * so that is not easy to accidentally tweak it, but it can still be + * done with Object.defineProperty(). + * + * XXX: require.id could also be just made non-configurable, as there + * is no practical reason to touch it. + */ + duk_push_c_function(ctx, duk_bi_global_object_require, 1 /*nargs*/); + duk_push_hstring_stridx(ctx, DUK_STRIDX_REQUIRE); + duk_xdef_prop_stridx(ctx, DUK__IDX_FRESH_REQUIRE, DUK_STRIDX_NAME, DUK_PROPDESC_FLAGS_NONE); + duk_dup(ctx, DUK__IDX_RESOLVED_ID); + duk_xdef_prop_stridx(ctx, DUK__IDX_FRESH_REQUIRE, DUK_STRIDX_ID, DUK_PROPDESC_FLAGS_C); /* a fresh require() with require.id = resolved target module id */ + + /* Module table: + * - module.exports: initial exports table (may be replaced by user) + * - module.id is non-writable and non-configurable, as the CommonJS + * spec suggests this if possible + * - module.filename: not set, defaults to resolved ID if not explicitly + * set by modSearch() (note capitalization, not .fileName, matches Node.js) + * - module.name: not set, defaults to last component of resolved ID if + * not explicitly set by modSearch() + */ + duk_push_object(ctx); /* exports */ + duk_push_object(ctx); /* module */ + duk_dup(ctx, DUK__IDX_EXPORTS); + duk_xdef_prop_stridx(ctx, DUK__IDX_MODULE, DUK_STRIDX_EXPORTS, DUK_PROPDESC_FLAGS_WC); /* module.exports = exports */ + duk_dup(ctx, DUK__IDX_RESOLVED_ID); /* resolved id: require(id) must return this same module */ + duk_xdef_prop_stridx(ctx, DUK__IDX_MODULE, DUK_STRIDX_ID, DUK_PROPDESC_FLAGS_NONE); /* module.id = resolved_id */ + duk_compact(ctx, DUK__IDX_MODULE); /* module table remains registered to modLoaded, minimize its size */ + DUK_ASSERT_TOP(ctx, DUK__IDX_MODULE + 1); + + DUK_DD(DUK_DDPRINT("module table created: %!T", duk_get_tval(ctx, DUK__IDX_MODULE))); + + /* [ requested_id require require.id resolved_id last_comp Duktape Duktape.modLoaded undefined fresh_require exports module ] */ + + /* Register the module table early to modLoaded[] so that we can + * support circular references even in modSearch(). If an error + * is thrown, we'll delete the reference. + */ + duk_dup(ctx, DUK__IDX_RESOLVED_ID); + duk_dup(ctx, DUK__IDX_MODULE); + duk_put_prop(ctx, DUK__IDX_MODLOADED); /* Duktape.modLoaded[resolved_id] = module */ + + /* + * Call user provided module search function and build the wrapped + * module source code (if necessary). The module search function + * can be used to implement pure Ecmacsript, pure C, and mixed + * Ecmascript/C modules. + * + * The module search function can operate on the exports table directly + * (e.g. DLL code can register values to it). It can also return a + * string which is interpreted as module source code (if a non-string + * is returned the module is assumed to be a pure C one). If a module + * cannot be found, an error must be thrown by the user callback. + * + * Because Duktape.modLoaded[] already contains the module being + * loaded, circular references for C modules should also work + * (although expected to be quite rare). + */ + + duk_push_string(ctx, "(function(require,exports,module){"); + + /* Duktape.modSearch(resolved_id, fresh_require, exports, module). */ + duk_get_prop_stridx(ctx, DUK__IDX_DUKTAPE, DUK_STRIDX_MOD_SEARCH); /* Duktape.modSearch */ + duk_dup(ctx, DUK__IDX_RESOLVED_ID); + duk_dup(ctx, DUK__IDX_FRESH_REQUIRE); + duk_dup(ctx, DUK__IDX_EXPORTS); + duk_dup(ctx, DUK__IDX_MODULE); /* [ ... Duktape.modSearch resolved_id last_comp fresh_require exports module ] */ + pcall_rc = duk_pcall(ctx, 4 /*nargs*/); /* -> [ ... source ] */ + DUK_ASSERT_TOP(ctx, DUK__IDX_MODULE + 3); + + if (pcall_rc != DUK_EXEC_SUCCESS) { + /* Delete entry in Duktape.modLoaded[] and rethrow. */ + goto delete_rethrow; + } + + /* If user callback did not return source code, module loading + * is finished (user callback initialized exports table directly). + */ + if (!duk_is_string(ctx, -1)) { + /* User callback did not return source code, so module loading + * is finished: just update modLoaded with final module.exports + * and we're done. + */ + goto return_exports; + } + + /* Finish the wrapped module source. Force module.filename as the + * function .fileName so it gets set for functions defined within a + * module. This also ensures loggers created within the module get + * the module ID (or overridden filename) as their default logger name. + * (Note capitalization: .filename matches Node.js while .fileName is + * used elsewhere in Duktape.) + */ + duk_push_string(ctx, "})"); + duk_concat(ctx, 3); + if (!duk_get_prop_stridx(ctx, DUK__IDX_MODULE, DUK_STRIDX_FILENAME)) { + /* module.filename for .fileName, default to resolved ID if + * not present. + */ + duk_pop(ctx); + duk_dup(ctx, DUK__IDX_RESOLVED_ID); + } + duk_eval_raw(ctx, NULL, 0, DUK_COMPILE_EVAL); + + /* Module has now evaluated to a wrapped module function. Force its + * .name to match module.name (defaults to last component of resolved + * ID) so that it is shown in stack traces too. Note that we must not + * introduce an actual name binding into the function scope (which is + * usually the case with a named function) because it would affect the + * scope seen by the module and shadow accesses to globals of the same name. + * This is now done by compiling the function as anonymous and then forcing + * its .name without setting a "has name binding" flag. + */ + + duk_push_hstring_stridx(ctx, DUK_STRIDX_NAME); + if (!duk_get_prop_stridx(ctx, DUK__IDX_MODULE, DUK_STRIDX_NAME)) { + /* module.name for .name, default to last component if + * not present. + */ + duk_pop(ctx); + duk_dup(ctx, DUK__IDX_LASTCOMP); + } + duk_def_prop(ctx, -3, DUK_DEFPROP_HAVE_VALUE | DUK_DEFPROP_FORCE); + + /* + * Call the wrapped module function. + * + * Use a protected call so that we can update Duktape.modLoaded[resolved_id] + * even if the module throws an error. + */ + + /* [ requested_id require require.id resolved_id last_comp Duktape Duktape.modLoaded undefined fresh_require exports module mod_func ] */ + DUK_ASSERT_TOP(ctx, DUK__IDX_MODULE + 2); + + duk_dup(ctx, DUK__IDX_EXPORTS); /* exports (this binding) */ + duk_dup(ctx, DUK__IDX_FRESH_REQUIRE); /* fresh require (argument) */ + duk_get_prop_stridx(ctx, DUK__IDX_MODULE, DUK_STRIDX_EXPORTS); /* relookup exports from module.exports in case it was changed by modSearch */ + duk_dup(ctx, DUK__IDX_MODULE); /* module (argument) */ + DUK_ASSERT_TOP(ctx, DUK__IDX_MODULE + 6); + + /* [ requested_id require require.id resolved_id last_comp Duktape Duktape.modLoaded undefined fresh_require exports module mod_func exports fresh_require exports module ] */ + + pcall_rc = duk_pcall_method(ctx, 3 /*nargs*/); + if (pcall_rc != DUK_EXEC_SUCCESS) { + /* Module loading failed. Node.js will forget the module + * registration so that another require() will try to load + * the module again. Mimic that behavior. + */ + goto delete_rethrow; + } + + /* [ requested_id require require.id resolved_id last_comp Duktape Duktape.modLoaded undefined fresh_require exports module result(ignored) ] */ + DUK_ASSERT_TOP(ctx, DUK__IDX_MODULE + 2); + + /* fall through */ + + return_exports: + duk_get_prop_stridx(ctx, DUK__IDX_MODULE, DUK_STRIDX_EXPORTS); + duk_compact(ctx, -1); /* compact the exports table */ + return 1; /* return module.exports */ + + delete_rethrow: + duk_dup(ctx, DUK__IDX_RESOLVED_ID); + duk_del_prop(ctx, DUK__IDX_MODLOADED); /* delete Duktape.modLoaded[resolved_id] */ + duk_throw(ctx); /* rethrow original error */ + return 0; /* not reachable */ +} + +#undef DUK__IDX_REQUESTED_ID +#undef DUK__IDX_REQUIRE +#undef DUK__IDX_REQUIRE_ID +#undef DUK__IDX_RESOLVED_ID +#undef DUK__IDX_LASTCOMP +#undef DUK__IDX_DUKTAPE +#undef DUK__IDX_MODLOADED +#undef DUK__IDX_UNDEFINED +#undef DUK__IDX_FRESH_REQUIRE +#undef DUK__IDX_EXPORTS +#undef DUK__IDX_MODULE +#else +DUK_INTERNAL duk_ret_t duk_bi_global_object_require(duk_context *ctx) { + DUK_UNREF(ctx); + return DUK_RET_UNSUPPORTED_ERROR; +} +#endif /* DUK_USE_COMMONJS_MODULES */ +#line 1 "duk_bi_json.c" +/* + * JSON built-ins. + * + * See doc/json.rst. + * + * Codepoints are handled as duk_uint_fast32_t to ensure that the full + * unsigned 32-bit range is supported. This matters to e.g. JX. + * + * Input parsing doesn't do an explicit end-of-input check at all. This is + * safe: input string data is always NUL-terminated (0x00) and valid JSON + * inputs never contain plain NUL characters, so that as long as syntax checks + * are correct, we'll never read past the NUL. This approach reduces code size + * and improves parsing performance, but it's critical that syntax checks are + * indeed correct! + */ + +/* include removed: duk_internal.h */ + +/* + * Local defines and forward declarations. + */ + +#define DUK__JSON_DECSTR_BUFSIZE 128 +#define DUK__JSON_DECSTR_CHUNKSIZE 64 +#define DUK__JSON_ENCSTR_CHUNKSIZE 64 +#define DUK__JSON_STRINGIFY_BUFSIZE 128 +#define DUK__JSON_MAX_ESC_LEN 10 /* '\Udeadbeef' */ + +DUK_LOCAL_DECL void duk__dec_syntax_error(duk_json_dec_ctx *js_ctx); +DUK_LOCAL_DECL void duk__dec_eat_white(duk_json_dec_ctx *js_ctx); +DUK_LOCAL_DECL duk_uint8_t duk__dec_peek(duk_json_dec_ctx *js_ctx); +DUK_LOCAL_DECL duk_uint8_t duk__dec_get(duk_json_dec_ctx *js_ctx); +DUK_LOCAL_DECL duk_uint8_t duk__dec_get_nonwhite(duk_json_dec_ctx *js_ctx); +DUK_LOCAL_DECL duk_uint_fast32_t duk__dec_decode_hex_escape(duk_json_dec_ctx *js_ctx, duk_small_uint_t n); +DUK_LOCAL_DECL void duk__dec_req_stridx(duk_json_dec_ctx *js_ctx, duk_small_uint_t stridx); +DUK_LOCAL_DECL void duk__dec_string(duk_json_dec_ctx *js_ctx); +#ifdef DUK_USE_JX +DUK_LOCAL_DECL void duk__dec_plain_string(duk_json_dec_ctx *js_ctx); +DUK_LOCAL_DECL void duk__dec_pointer(duk_json_dec_ctx *js_ctx); +DUK_LOCAL_DECL void duk__dec_buffer(duk_json_dec_ctx *js_ctx); +#endif +DUK_LOCAL_DECL void duk__dec_number(duk_json_dec_ctx *js_ctx); +DUK_LOCAL_DECL void duk__dec_objarr_entry(duk_json_dec_ctx *js_ctx); +DUK_LOCAL_DECL void duk__dec_objarr_exit(duk_json_dec_ctx *js_ctx); +DUK_LOCAL_DECL void duk__dec_object(duk_json_dec_ctx *js_ctx); +DUK_LOCAL_DECL void duk__dec_array(duk_json_dec_ctx *js_ctx); +DUK_LOCAL_DECL void duk__dec_value(duk_json_dec_ctx *js_ctx); +DUK_LOCAL_DECL void duk__dec_reviver_walk(duk_json_dec_ctx *js_ctx); + +DUK_LOCAL_DECL void duk__emit_1(duk_json_enc_ctx *js_ctx, duk_uint_fast8_t ch); +DUK_LOCAL_DECL void duk__emit_2(duk_json_enc_ctx *js_ctx, duk_uint_fast8_t ch1, duk_uint_fast8_t ch2); +DUK_LOCAL_DECL void duk__unemit_1(duk_json_enc_ctx *js_ctx); +DUK_LOCAL_DECL void duk__emit_hstring(duk_json_enc_ctx *js_ctx, duk_hstring *h); +#if defined(DUK_USE_FASTINT) +DUK_LOCAL_DECL void duk__emit_cstring(duk_json_enc_ctx *js_ctx, const char *p); +#endif +DUK_LOCAL_DECL void duk__emit_stridx(duk_json_enc_ctx *js_ctx, duk_small_uint_t stridx); +DUK_LOCAL_DECL duk_uint8_t *duk__emit_esc_auto_fast(duk_json_enc_ctx *js_ctx, duk_uint_fast32_t cp, duk_uint8_t *q); +DUK_LOCAL_DECL void duk__enc_key_autoquote(duk_json_enc_ctx *js_ctx, duk_hstring *k); +DUK_LOCAL_DECL void duk__enc_quote_string(duk_json_enc_ctx *js_ctx, duk_hstring *h_str); +DUK_LOCAL_DECL void duk__enc_objarr_entry(duk_json_enc_ctx *js_ctx, duk_idx_t *entry_top); +DUK_LOCAL_DECL void duk__enc_objarr_exit(duk_json_enc_ctx *js_ctx, duk_idx_t *entry_top); +DUK_LOCAL_DECL void duk__enc_object(duk_json_enc_ctx *js_ctx); +DUK_LOCAL_DECL void duk__enc_array(duk_json_enc_ctx *js_ctx); +DUK_LOCAL_DECL duk_bool_t duk__enc_value(duk_json_enc_ctx *js_ctx, duk_idx_t idx_holder); +DUK_LOCAL_DECL duk_bool_t duk__enc_allow_into_proplist(duk_tval *tv); +DUK_LOCAL_DECL void duk__enc_double(duk_json_enc_ctx *js_ctx); +#if defined(DUK_USE_FASTINT) +DUK_LOCAL_DECL void duk__enc_fastint_tval(duk_json_enc_ctx *js_ctx, duk_tval *tv); +#endif +#if defined(DUK_USE_JX) || defined(DUK_USE_JC) +DUK_LOCAL_DECL void duk__enc_buffer(duk_json_enc_ctx *js_ctx, duk_hbuffer *h); +DUK_LOCAL_DECL void duk__enc_pointer(duk_json_enc_ctx *js_ctx, void *ptr); +DUK_LOCAL_DECL void duk__enc_bufferobject(duk_json_enc_ctx *js_ctx, duk_hbufferobject *h_bufobj); +#endif +DUK_LOCAL_DECL void duk__enc_newline_indent(duk_json_enc_ctx *js_ctx, duk_int_t depth); + +/* + * Helper tables + */ + +#if defined(DUK_USE_JSON_QUOTESTRING_FASTPATH) +DUK_LOCAL const duk_uint8_t duk__json_quotestr_lookup[256] = { + /* 0x00 ... 0x7f: as is + * 0x80: escape generically + * 0x81: slow path + * 0xa0 ... 0xff: backslash + one char + */ + + 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0xe2, 0xf4, 0xee, 0x80, 0xe6, 0xf2, 0x80, 0x80, + 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, + 0x20, 0x21, 0xa2, 0x23, 0x24, 0x25, 0x26, 0x27, 0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, + 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, + 0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, + 0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58, 0x59, 0x5a, 0x5b, 0xdc, 0x5d, 0x5e, 0x5f, + 0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, + 0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x81, + 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, + 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, + 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, + 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, + 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, + 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, + 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, + 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81 +}; +#else /* DUK_USE_JSON_QUOTESTRING_FASTPATH */ +DUK_LOCAL const duk_uint8_t duk__json_quotestr_esc[14] = { + DUK_ASC_NUL, DUK_ASC_NUL, DUK_ASC_NUL, DUK_ASC_NUL, + DUK_ASC_NUL, DUK_ASC_NUL, DUK_ASC_NUL, DUK_ASC_NUL, + DUK_ASC_LC_B, DUK_ASC_LC_T, DUK_ASC_LC_N, DUK_ASC_NUL, + DUK_ASC_LC_F, DUK_ASC_LC_R +}; +#endif /* DUK_USE_JSON_QUOTESTRING_FASTPATH */ + +#if defined(DUK_USE_JSON_DECSTRING_FASTPATH) +DUK_LOCAL const duk_uint8_t duk__json_decstr_lookup[256] = { + /* 0x00: slow path + * other: as is + */ + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x20, 0x21, 0x00, 0x23, 0x24, 0x25, 0x26, 0x27, 0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, + 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, + 0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, + 0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58, 0x59, 0x5a, 0x5b, 0x00, 0x5d, 0x5e, 0x5f, + 0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, + 0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, + 0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87, 0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f, + 0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97, 0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f, + 0xa0, 0xa1, 0xa2, 0xa3, 0xa4, 0xa5, 0xa6, 0xa7, 0xa8, 0xa9, 0xaa, 0xab, 0xac, 0xad, 0xae, 0xaf, + 0xb0, 0xb1, 0xb2, 0xb3, 0xb4, 0xb5, 0xb6, 0xb7, 0xb8, 0xb9, 0xba, 0xbb, 0xbc, 0xbd, 0xbe, 0xbf, + 0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7, 0xc8, 0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf, + 0xd0, 0xd1, 0xd2, 0xd3, 0xd4, 0xd5, 0xd6, 0xd7, 0xd8, 0xd9, 0xda, 0xdb, 0xdc, 0xdd, 0xde, 0xdf, + 0xe0, 0xe1, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7, 0xe8, 0xe9, 0xea, 0xeb, 0xec, 0xed, 0xee, 0xef, + 0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, 0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xff +}; +#endif /* DUK_USE_JSON_DECSTRING_FASTPATH */ + +#if defined(DUK_USE_JSON_EATWHITE_FASTPATH) +DUK_LOCAL const duk_uint8_t duk__json_eatwhite_lookup[256] = { + /* 0x00: finish (non-white) + * 0x01: continue + */ + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x01, 0x00, 0x00, 0x01, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 +}; +#endif /* DUK_USE_JSON_EATWHITE_FASTPATH */ + +#if defined(DUK_USE_JSON_DECNUMBER_FASTPATH) +DUK_LOCAL const duk_uint8_t duk__json_decnumber_lookup[256] = { + /* 0x00: finish (not part of number) + * 0x01: continue + */ + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x01, 0x01, 0x00, + 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 +}; +#endif /* DUK_USE_JSON_DECNUMBER_FASTPATH */ + +/* + * Parsing implementation. + * + * JSON lexer is now separate from duk_lexer.c because there are numerous + * small differences making it difficult to share the lexer. + * + * The parser here works with raw bytes directly; this works because all + * JSON delimiters are ASCII characters. Invalid xUTF-8 encoded values + * inside strings will be passed on without normalization; this is not a + * compliance concern because compliant inputs will always be valid + * CESU-8 encodings. + */ + +DUK_LOCAL void duk__dec_syntax_error(duk_json_dec_ctx *js_ctx) { + /* Shared handler to minimize parser size. Cause will be + * hidden, unfortunately, but we'll have an offset which + * is often quite enough. + */ + DUK_ERROR_FMT1(js_ctx->thr, DUK_ERR_SYNTAX_ERROR, DUK_STR_FMT_INVALID_JSON, + (long) (js_ctx->p - js_ctx->p_start)); +} + +DUK_LOCAL void duk__dec_eat_white(duk_json_dec_ctx *js_ctx) { + const duk_uint8_t *p; + duk_uint8_t t; + + p = js_ctx->p; + for (;;) { + DUK_ASSERT(p <= js_ctx->p_end); + t = *p; + +#if defined(DUK_USE_JSON_EATWHITE_FASTPATH) + /* This fast path is pretty marginal in practice. + * XXX: candidate for removal. + */ + DUK_ASSERT(duk__json_eatwhite_lookup[0x00] == 0x00); /* end-of-input breaks */ + if (duk__json_eatwhite_lookup[t] == 0) { + break; + } +#else /* DUK_USE_JSON_EATWHITE_FASTPATH */ + if (!(t == 0x20 || t == 0x0a || t == 0x0d || t == 0x09)) { + /* NUL also comes here. Comparison order matters, 0x20 + * is most common whitespace. + */ + break; + } +#endif /* DUK_USE_JSON_EATWHITE_FASTPATH */ + p++; + } + js_ctx->p = p; +} + +DUK_LOCAL duk_uint8_t duk__dec_peek(duk_json_dec_ctx *js_ctx) { + DUK_ASSERT(js_ctx->p <= js_ctx->p_end); + return *js_ctx->p; +} + +DUK_LOCAL duk_uint8_t duk__dec_get(duk_json_dec_ctx *js_ctx) { + DUK_ASSERT(js_ctx->p <= js_ctx->p_end); + return *js_ctx->p++; +} + +DUK_LOCAL duk_uint8_t duk__dec_get_nonwhite(duk_json_dec_ctx *js_ctx) { + duk__dec_eat_white(js_ctx); + return duk__dec_get(js_ctx); +} + +/* For JX, expressing the whole unsigned 32-bit range matters. */ +DUK_LOCAL duk_uint_fast32_t duk__dec_decode_hex_escape(duk_json_dec_ctx *js_ctx, duk_small_uint_t n) { + duk_small_uint_t i; + duk_uint_fast32_t res = 0; + duk_uint8_t x; + duk_small_int_t t; + + for (i = 0; i < n; i++) { + /* XXX: share helper from lexer; duk_lexer.c / hexval(). */ + + x = duk__dec_get(js_ctx); + DUK_DDD(DUK_DDDPRINT("decode_hex_escape: i=%ld, n=%ld, res=%ld, x=%ld", + (long) i, (long) n, (long) res, (long) x)); + + /* x == 0x00 (EOF) causes syntax_error */ + DUK_ASSERT(duk_hex_dectab[0] == -1); + t = duk_hex_dectab[x & 0xff]; + if (DUK_LIKELY(t >= 0)) { + res = (res * 16) + t; + } else { + /* catches EOF and invalid digits */ + goto syntax_error; + } + } + + DUK_DDD(DUK_DDDPRINT("final hex decoded value: %ld", (long) res)); + return res; + + syntax_error: + duk__dec_syntax_error(js_ctx); + DUK_UNREACHABLE(); + return 0; +} + +DUK_LOCAL void duk__dec_req_stridx(duk_json_dec_ctx *js_ctx, duk_small_uint_t stridx) { + duk_hstring *h; + const duk_uint8_t *p; + duk_uint8_t x, y; + + /* First character has already been eaten and checked by the caller. + * We can scan until a NUL in stridx string because no built-in strings + * have internal NULs. + */ + + DUK_ASSERT_DISABLE(stridx >= 0); /* unsigned */ + DUK_ASSERT(stridx < DUK_HEAP_NUM_STRINGS); + h = DUK_HTHREAD_GET_STRING(js_ctx->thr, stridx); + DUK_ASSERT(h != NULL); + + p = (const duk_uint8_t *) DUK_HSTRING_GET_DATA(h) + 1; + DUK_ASSERT(*(js_ctx->p - 1) == *(p - 1)); /* first character has been matched */ + + for (;;) { + x = *p; + if (x == 0) { + break; + } + y = duk__dec_get(js_ctx); + if (x != y) { + /* Catches EOF of JSON input. */ + goto syntax_error; + } + p++; + } + + return; + + syntax_error: + duk__dec_syntax_error(js_ctx); + DUK_UNREACHABLE(); +} + +DUK_LOCAL duk_small_int_t duk__dec_string_escape(duk_json_dec_ctx *js_ctx, duk_uint8_t **ext_p) { + duk_uint_fast32_t cp; + + /* EOF (-1) will be cast to an unsigned value first + * and then re-cast for the switch. In any case, it + * will match the default case (syntax error). + */ + cp = (duk_uint_fast32_t) duk__dec_get(js_ctx); + switch ((int) cp) { + case DUK_ASC_BACKSLASH: break; + case DUK_ASC_DOUBLEQUOTE: break; + case DUK_ASC_SLASH: break; + case DUK_ASC_LC_T: cp = 0x09; break; + case DUK_ASC_LC_N: cp = 0x0a; break; + case DUK_ASC_LC_R: cp = 0x0d; break; + case DUK_ASC_LC_F: cp = 0x0c; break; + case DUK_ASC_LC_B: cp = 0x08; break; + case DUK_ASC_LC_U: { + cp = duk__dec_decode_hex_escape(js_ctx, 4); + break; + } +#ifdef DUK_USE_JX + case DUK_ASC_UC_U: { + if (js_ctx->flag_ext_custom) { + cp = duk__dec_decode_hex_escape(js_ctx, 8); + } else { + return 1; /* syntax error */ + } + break; + } + case DUK_ASC_LC_X: { + if (js_ctx->flag_ext_custom) { + cp = duk__dec_decode_hex_escape(js_ctx, 2); + } else { + return 1; /* syntax error */ + } + break; + } +#endif /* DUK_USE_JX */ + default: + /* catches EOF (0x00) */ + return 1; /* syntax error */ + } + + DUK_RAW_WRITE_XUTF8(*ext_p, cp); + + return 0; +} + +DUK_LOCAL void duk__dec_string(duk_json_dec_ctx *js_ctx) { + duk_hthread *thr = js_ctx->thr; + duk_context *ctx = (duk_context *) thr; + duk_bufwriter_ctx bw_alloc; + duk_bufwriter_ctx *bw; + duk_uint8_t *q; + + /* '"' was eaten by caller */ + + /* Note that we currently parse -bytes-, not codepoints. + * All non-ASCII extended UTF-8 will encode to bytes >= 0x80, + * so they'll simply pass through (valid UTF-8 or not). + */ + + bw = &bw_alloc; + DUK_BW_INIT_PUSHBUF(js_ctx->thr, bw, DUK__JSON_DECSTR_BUFSIZE); + q = DUK_BW_GET_PTR(js_ctx->thr, bw); + +#if defined(DUK_USE_JSON_DECSTRING_FASTPATH) + for (;;) { + duk_small_uint_t safe; + duk_uint8_t b, x; + const duk_uint8_t *p; + + /* Select a safe loop count where no output checks are + * needed assuming we won't encounter escapes. Input + * bound checks are not necessary as a NUL (guaranteed) + * will cause a SyntaxError before we read out of bounds. + */ + + safe = DUK__JSON_DECSTR_CHUNKSIZE; + + /* Ensure space for 1:1 output plus one escape. */ + q = DUK_BW_ENSURE_RAW(js_ctx->thr, bw, safe + DUK_UNICODE_MAX_XUTF8_LENGTH, q); + + p = js_ctx->p; /* temp copy, write back for next loop */ + for (;;) { + if (safe == 0) { + js_ctx->p = p; + break; + } + safe--; + + /* End of input (NUL) goes through slow path and causes SyntaxError. */ + DUK_ASSERT(duk__json_decstr_lookup[0] == 0x00); + + b = *p++; + x = (duk_small_int_t) duk__json_decstr_lookup[b]; + if (DUK_LIKELY(x != 0)) { + /* Fast path, decode as is. */ + *q++ = b; + } else if (b == DUK_ASC_DOUBLEQUOTE) { + js_ctx->p = p; + goto found_quote; + } else if (b == DUK_ASC_BACKSLASH) { + /* We've ensured space for one escaped input; then + * bail out and recheck (this makes escape handling + * quite slow but it's uncommon). + */ + js_ctx->p = p; + if (duk__dec_string_escape(js_ctx, &q) != 0) { + goto syntax_error; + } + break; + } else { + js_ctx->p = p; + goto syntax_error; + } + } + } + found_quote: +#else /* DUK_USE_JSON_DECSTRING_FASTPATH */ + for (;;) { + duk_uint8_t x; + + q = DUK_BW_ENSURE_RAW(js_ctx->thr, bw, DUK_UNICODE_MAX_XUTF8_LENGTH, q); + + x = duk__dec_get(js_ctx); + + if (x == DUK_ASC_DOUBLEQUOTE) { + break; + } else if (x == DUK_ASC_BACKSLASH) { + if (duk__dec_string_escape(js_ctx, &q) != 0) { + goto syntax_error; + } + } else if (x < 0x20) { + /* catches EOF (NUL) */ + goto syntax_error; + } else { + *q++ = (duk_uint8_t) x; + } + } +#endif /* DUK_USE_JSON_DECSTRING_FASTPATH */ + + DUK_BW_SETPTR_AND_COMPACT(js_ctx->thr, bw, q); + duk_to_string(ctx, -1); + + /* [ ... str ] */ + + return; + + syntax_error: + duk__dec_syntax_error(js_ctx); + DUK_UNREACHABLE(); +} + +#ifdef DUK_USE_JX +/* Decode a plain string consisting entirely of identifier characters. + * Used to parse plain keys (e.g. "foo: 123"). + */ +DUK_LOCAL void duk__dec_plain_string(duk_json_dec_ctx *js_ctx) { + duk_hthread *thr = js_ctx->thr; + duk_context *ctx = (duk_context *) thr; + const duk_uint8_t *p; + duk_small_int_t x; + + /* Caller has already eaten the first char so backtrack one byte. */ + + js_ctx->p--; /* safe */ + p = js_ctx->p; + + /* Here again we parse bytes, and non-ASCII UTF-8 will cause end of + * parsing (which is correct except if there are non-shortest encodings). + * There is also no need to check explicitly for end of input buffer as + * the input is NUL padded and NUL will exit the parsing loop. + * + * Because no unescaping takes place, we can just scan to the end of the + * plain string and intern from the input buffer. + */ + + for (;;) { + x = *p; + + /* There is no need to check the first character specially here + * (i.e. reject digits): the caller only accepts valid initial + * characters and won't call us if the first character is a digit. + * This also ensures that the plain string won't be empty. + */ + + if (!duk_unicode_is_identifier_part((duk_codepoint_t) x)) { + break; + } + p++; + } + + duk_push_lstring(ctx, (const char *) js_ctx->p, (duk_size_t) (p - js_ctx->p)); + js_ctx->p = p; + + /* [ ... str ] */ +} +#endif /* DUK_USE_JX */ + +#ifdef DUK_USE_JX +DUK_LOCAL void duk__dec_pointer(duk_json_dec_ctx *js_ctx) { + duk_hthread *thr = js_ctx->thr; + duk_context *ctx = (duk_context *) thr; + const duk_uint8_t *p; + duk_small_int_t x; + void *voidptr; + + /* Caller has already eaten the first character ('(') which we don't need. */ + + p = js_ctx->p; + + for (;;) { + x = *p; + + /* Assume that the native representation never contains a closing + * parenthesis. + */ + + if (x == DUK_ASC_RPAREN) { + break; + } else if (x <= 0) { + /* NUL term or -1 (EOF), NUL check would suffice */ + goto syntax_error; + } + p++; + } + + /* There is no need to NUL delimit the sscanf() call: trailing garbage is + * ignored and there is always a NUL terminator which will force an error + * if no error is encountered before it. It's possible that the scan + * would scan further than between [js_ctx->p,p[ though and we'd advance + * by less than the scanned value. + * + * Because pointers are platform specific, a failure to scan a pointer + * results in a null pointer which is a better placeholder than a missing + * value or an error. + */ + + voidptr = NULL; + (void) DUK_SSCANF((const char *) js_ctx->p, DUK_STR_FMT_PTR, &voidptr); + duk_push_pointer(ctx, voidptr); + js_ctx->p = p + 1; /* skip ')' */ + + /* [ ... ptr ] */ + + return; + + syntax_error: + duk__dec_syntax_error(js_ctx); + DUK_UNREACHABLE(); +} +#endif /* DUK_USE_JX */ + +#ifdef DUK_USE_JX +DUK_LOCAL void duk__dec_buffer(duk_json_dec_ctx *js_ctx) { + duk_hthread *thr = js_ctx->thr; + duk_context *ctx = (duk_context *) thr; + const duk_uint8_t *p; + duk_uint8_t *buf; + duk_size_t src_len; + duk_small_int_t x; + + /* Caller has already eaten the first character ('|') which we don't need. */ + + p = js_ctx->p; + + /* XXX: Would be nice to share the fast path loop from duk_hex_decode() + * and avoid creating a temporary buffer. However, there are some + * differences which prevent trivial sharing: + * + * - Pipe char detection + * - EOF detection + * - Unknown length of input and output + * + * The best approach here would be a bufwriter and a reasonaly sized + * safe inner loop (e.g. 64 output bytes at a time). + */ + + for (;;) { + x = *p; + + /* This loop intentionally does not ensure characters are valid + * ([0-9a-fA-F]) because the hex decode call below will do that. + */ + if (x == DUK_ASC_PIPE) { + break; + } else if (x <= 0) { + /* NUL term or -1 (EOF), NUL check would suffice */ + goto syntax_error; + } + p++; + } + + src_len = (duk_size_t) (p - js_ctx->p); + buf = (duk_uint8_t *) duk_push_fixed_buffer(ctx, src_len); + DUK_ASSERT(buf != NULL); + DUK_MEMCPY((void *) buf, (const void *) js_ctx->p, src_len); + duk_hex_decode(ctx, -1); + + js_ctx->p = p + 1; /* skip '|' */ + + /* [ ... buf ] */ + + return; + + syntax_error: + duk__dec_syntax_error(js_ctx); + DUK_UNREACHABLE(); +} +#endif /* DUK_USE_JX */ + +/* Parse a number, other than NaN or +/- Infinity */ +DUK_LOCAL void duk__dec_number(duk_json_dec_ctx *js_ctx) { + duk_context *ctx = (duk_context *) js_ctx->thr; + const duk_uint8_t *p_start; + const duk_uint8_t *p; + duk_uint8_t x; + duk_small_uint_t s2n_flags; + + DUK_DDD(DUK_DDDPRINT("parse_number")); + + p_start = js_ctx->p; + + /* First pass parse is very lenient (e.g. allows '1.2.3') and extracts a + * string for strict number parsing. + */ + + p = js_ctx->p; + for (;;) { + x = *p; + + DUK_DDD(DUK_DDDPRINT("parse_number: p_start=%p, p=%p, p_end=%p, x=%ld", + (const void *) p_start, (const void *) p, + (const void *) js_ctx->p_end, (long) x)); + +#if defined(DUK_USE_JSON_DECNUMBER_FASTPATH) + /* This fast path is pretty marginal in practice. + * XXX: candidate for removal. + */ + DUK_ASSERT(duk__json_decnumber_lookup[0x00] == 0x00); /* end-of-input breaks */ + if (duk__json_decnumber_lookup[x] == 0) { + break; + } +#else /* DUK_USE_JSON_DECNUMBER_FASTPATH */ + if (!((x >= DUK_ASC_0 && x <= DUK_ASC_9) || + (x == DUK_ASC_PERIOD || x == DUK_ASC_LC_E || + x == DUK_ASC_UC_E || x == DUK_ASC_MINUS || x == DUK_ASC_PLUS))) { + /* Plus sign must be accepted for positive exponents + * (e.g. '1.5e+2'). This clause catches NULs. + */ + break; + } +#endif /* DUK_USE_JSON_DECNUMBER_FASTPATH */ + p++; /* safe, because matched (NUL causes a break) */ + } + js_ctx->p = p; + + DUK_ASSERT(js_ctx->p > p_start); + duk_push_lstring(ctx, (const char *) p_start, (duk_size_t) (p - p_start)); + + s2n_flags = DUK_S2N_FLAG_ALLOW_EXP | + DUK_S2N_FLAG_ALLOW_MINUS | /* but don't allow leading plus */ + DUK_S2N_FLAG_ALLOW_FRAC; + + DUK_DDD(DUK_DDDPRINT("parse_number: string before parsing: %!T", + (duk_tval *) duk_get_tval(ctx, -1))); + duk_numconv_parse(ctx, 10 /*radix*/, s2n_flags); + if (duk_is_nan(ctx, -1)) { + duk__dec_syntax_error(js_ctx); + } + DUK_ASSERT(duk_is_number(ctx, -1)); + DUK_DDD(DUK_DDDPRINT("parse_number: final number: %!T", + (duk_tval *) duk_get_tval(ctx, -1))); + + /* [ ... num ] */ +} + +DUK_LOCAL void duk__dec_objarr_entry(duk_json_dec_ctx *js_ctx) { + duk_context *ctx = (duk_context *) js_ctx->thr; + duk_require_stack(ctx, DUK_JSON_DEC_REQSTACK); + + /* c recursion check */ + + DUK_ASSERT(js_ctx->recursion_depth >= 0); + DUK_ASSERT(js_ctx->recursion_depth <= js_ctx->recursion_limit); + if (js_ctx->recursion_depth >= js_ctx->recursion_limit) { + DUK_ERROR_RANGE((duk_hthread *) ctx, DUK_STR_JSONDEC_RECLIMIT); + } + js_ctx->recursion_depth++; +} + +DUK_LOCAL void duk__dec_objarr_exit(duk_json_dec_ctx *js_ctx) { + /* c recursion check */ + + DUK_ASSERT(js_ctx->recursion_depth > 0); + DUK_ASSERT(js_ctx->recursion_depth <= js_ctx->recursion_limit); + js_ctx->recursion_depth--; +} + +DUK_LOCAL void duk__dec_object(duk_json_dec_ctx *js_ctx) { + duk_context *ctx = (duk_context *) js_ctx->thr; + duk_int_t key_count; /* XXX: a "first" flag would suffice */ + duk_uint8_t x; + + DUK_DDD(DUK_DDDPRINT("parse_object")); + + duk__dec_objarr_entry(js_ctx); + + duk_push_object(ctx); + + /* Initial '{' has been checked and eaten by caller. */ + + key_count = 0; + for (;;) { + x = duk__dec_get_nonwhite(js_ctx); + + DUK_DDD(DUK_DDDPRINT("parse_object: obj=%!T, x=%ld, key_count=%ld", + (duk_tval *) duk_get_tval(ctx, -1), + (long) x, (long) key_count)); + + /* handle comma and closing brace */ + + if (x == DUK_ASC_COMMA && key_count > 0) { + /* accept comma, expect new value */ + x = duk__dec_get_nonwhite(js_ctx); + } else if (x == DUK_ASC_RCURLY) { + /* eat closing brace */ + break; + } else if (key_count == 0) { + /* accept anything, expect first value (EOF will be + * caught by key parsing below. + */ + ; + } else { + /* catches EOF (NUL) and initial comma */ + goto syntax_error; + } + + /* parse key and value */ + + if (x == DUK_ASC_DOUBLEQUOTE) { + duk__dec_string(js_ctx); +#ifdef DUK_USE_JX + } else if (js_ctx->flag_ext_custom && + duk_unicode_is_identifier_start((duk_codepoint_t) x)) { + duk__dec_plain_string(js_ctx); +#endif + } else { + goto syntax_error; + } + + /* [ ... obj key ] */ + + x = duk__dec_get_nonwhite(js_ctx); + if (x != DUK_ASC_COLON) { + goto syntax_error; + } + + duk__dec_value(js_ctx); + + /* [ ... obj key val ] */ + + duk_xdef_prop_wec(ctx, -3); + + /* [ ... obj ] */ + + key_count++; + } + + /* [ ... obj ] */ + + DUK_DDD(DUK_DDDPRINT("parse_object: final object is %!T", + (duk_tval *) duk_get_tval(ctx, -1))); + + duk__dec_objarr_exit(js_ctx); + return; + + syntax_error: + duk__dec_syntax_error(js_ctx); + DUK_UNREACHABLE(); +} + +DUK_LOCAL void duk__dec_array(duk_json_dec_ctx *js_ctx) { + duk_context *ctx = (duk_context *) js_ctx->thr; + duk_uarridx_t arr_idx; + duk_uint8_t x; + + DUK_DDD(DUK_DDDPRINT("parse_array")); + + duk__dec_objarr_entry(js_ctx); + + duk_push_array(ctx); + + /* Initial '[' has been checked and eaten by caller. */ + + arr_idx = 0; + for (;;) { + x = duk__dec_get_nonwhite(js_ctx); + + DUK_DDD(DUK_DDDPRINT("parse_array: arr=%!T, x=%ld, arr_idx=%ld", + (duk_tval *) duk_get_tval(ctx, -1), + (long) x, (long) arr_idx)); + + /* handle comma and closing bracket */ + + if ((x == DUK_ASC_COMMA) && (arr_idx != 0)) { + /* accept comma, expect new value */ + ; + } else if (x == DUK_ASC_RBRACKET) { + /* eat closing bracket */ + break; + } else if (arr_idx == 0) { + /* accept anything, expect first value (EOF will be + * caught by duk__dec_value() below. + */ + js_ctx->p--; /* backtrack (safe) */ + } else { + /* catches EOF (NUL) and initial comma */ + goto syntax_error; + } + + /* parse value */ + + duk__dec_value(js_ctx); + + /* [ ... arr val ] */ + + duk_xdef_prop_index_wec(ctx, -2, arr_idx); + arr_idx++; + } + + /* Must set 'length' explicitly when using duk_xdef_prop_xxx() to + * set the values. + */ + + duk_set_length(ctx, -1, arr_idx); + + /* [ ... arr ] */ + + DUK_DDD(DUK_DDDPRINT("parse_array: final array is %!T", + (duk_tval *) duk_get_tval(ctx, -1))); + + duk__dec_objarr_exit(js_ctx); + return; + + syntax_error: + duk__dec_syntax_error(js_ctx); + DUK_UNREACHABLE(); +} + +DUK_LOCAL void duk__dec_value(duk_json_dec_ctx *js_ctx) { + duk_context *ctx = (duk_context *) js_ctx->thr; + duk_uint8_t x; + + x = duk__dec_get_nonwhite(js_ctx); + + DUK_DDD(DUK_DDDPRINT("parse_value: initial x=%ld", (long) x)); + + /* Note: duk__dec_req_stridx() backtracks one char */ + + if (x == DUK_ASC_DOUBLEQUOTE) { + duk__dec_string(js_ctx); + } else if ((x >= DUK_ASC_0 && x <= DUK_ASC_9) || (x == DUK_ASC_MINUS)) { +#ifdef DUK_USE_JX + if (js_ctx->flag_ext_custom && x == DUK_ASC_MINUS && duk__dec_peek(js_ctx) == DUK_ASC_UC_I) { + duk__dec_req_stridx(js_ctx, DUK_STRIDX_MINUS_INFINITY); /* "-Infinity", '-' has been eaten */ + duk_push_number(ctx, -DUK_DOUBLE_INFINITY); + } else { +#else + { /* unconditional block */ +#endif + /* We already ate 'x', so backup one byte. */ + js_ctx->p--; /* safe */ + duk__dec_number(js_ctx); + } + } else if (x == DUK_ASC_LC_T) { + duk__dec_req_stridx(js_ctx, DUK_STRIDX_TRUE); + duk_push_true(ctx); + } else if (x == DUK_ASC_LC_F) { + duk__dec_req_stridx(js_ctx, DUK_STRIDX_FALSE); + duk_push_false(ctx); + } else if (x == DUK_ASC_LC_N) { + duk__dec_req_stridx(js_ctx, DUK_STRIDX_LC_NULL); + duk_push_null(ctx); +#ifdef DUK_USE_JX + } else if (js_ctx->flag_ext_custom && x == DUK_ASC_LC_U) { + duk__dec_req_stridx(js_ctx, DUK_STRIDX_LC_UNDEFINED); + duk_push_undefined(ctx); + } else if (js_ctx->flag_ext_custom && x == DUK_ASC_UC_N) { + duk__dec_req_stridx(js_ctx, DUK_STRIDX_NAN); + duk_push_nan(ctx); + } else if (js_ctx->flag_ext_custom && x == DUK_ASC_UC_I) { + duk__dec_req_stridx(js_ctx, DUK_STRIDX_INFINITY); + duk_push_number(ctx, DUK_DOUBLE_INFINITY); + } else if (js_ctx->flag_ext_custom && x == DUK_ASC_LPAREN) { + duk__dec_pointer(js_ctx); + } else if (js_ctx->flag_ext_custom && x == DUK_ASC_PIPE) { + duk__dec_buffer(js_ctx); +#endif + } else if (x == DUK_ASC_LCURLY) { + duk__dec_object(js_ctx); + } else if (x == DUK_ASC_LBRACKET) { + duk__dec_array(js_ctx); + } else { + /* catches EOF (NUL) */ + goto syntax_error; + } + + duk__dec_eat_white(js_ctx); + + /* [ ... val ] */ + return; + + syntax_error: + duk__dec_syntax_error(js_ctx); + DUK_UNREACHABLE(); +} + +/* Recursive value reviver, implements the Walk() algorithm. No C recursion + * check is done here because the initial parsing step will already ensure + * there is a reasonable limit on C recursion depth and hence object depth. + */ +DUK_LOCAL void duk__dec_reviver_walk(duk_json_dec_ctx *js_ctx) { + duk_context *ctx = (duk_context *) js_ctx->thr; + duk_hobject *h; + duk_uarridx_t i, arr_len; + + DUK_DDD(DUK_DDDPRINT("walk: top=%ld, holder=%!T, name=%!T", + (long) duk_get_top(ctx), + (duk_tval *) duk_get_tval(ctx, -2), + (duk_tval *) duk_get_tval(ctx, -1))); + + duk_dup_top(ctx); + duk_get_prop(ctx, -3); /* -> [ ... holder name val ] */ + + h = duk_get_hobject(ctx, -1); + if (h != NULL) { + if (DUK_HOBJECT_GET_CLASS_NUMBER(h) == DUK_HOBJECT_CLASS_ARRAY) { + arr_len = (duk_uarridx_t) duk_get_length(ctx, -1); + for (i = 0; i < arr_len; i++) { + /* [ ... holder name val ] */ + + DUK_DDD(DUK_DDDPRINT("walk: array, top=%ld, i=%ld, arr_len=%ld, holder=%!T, name=%!T, val=%!T", + (long) duk_get_top(ctx), (long) i, (long) arr_len, + (duk_tval *) duk_get_tval(ctx, -3), (duk_tval *) duk_get_tval(ctx, -2), + (duk_tval *) duk_get_tval(ctx, -1))); + + /* XXX: push_uint_string / push_u32_string */ + duk_dup_top(ctx); + duk_push_uint(ctx, (duk_uint_t) i); + duk_to_string(ctx, -1); /* -> [ ... holder name val val ToString(i) ] */ + duk__dec_reviver_walk(js_ctx); /* -> [ ... holder name val new_elem ] */ + + if (duk_is_undefined(ctx, -1)) { + duk_pop(ctx); + duk_del_prop_index(ctx, -1, i); + } else { + /* XXX: duk_xdef_prop_index_wec() would be more appropriate + * here but it currently makes some assumptions that might + * not hold (e.g. that previous property is not an accessor). + */ + duk_put_prop_index(ctx, -2, i); + } + } + } else { + /* [ ... holder name val ] */ + duk_enum(ctx, -1, DUK_ENUM_OWN_PROPERTIES_ONLY /*flags*/); + while (duk_next(ctx, -1 /*enum_index*/, 0 /*get_value*/)) { + DUK_DDD(DUK_DDDPRINT("walk: object, top=%ld, holder=%!T, name=%!T, val=%!T, enum=%!iT, obj_key=%!T", + (long) duk_get_top(ctx), (duk_tval *) duk_get_tval(ctx, -5), + (duk_tval *) duk_get_tval(ctx, -4), (duk_tval *) duk_get_tval(ctx, -3), + (duk_tval *) duk_get_tval(ctx, -2), (duk_tval *) duk_get_tval(ctx, -1))); + + /* [ ... holder name val enum obj_key ] */ + duk_dup(ctx, -3); + duk_dup(ctx, -2); + + /* [ ... holder name val enum obj_key val obj_key ] */ + duk__dec_reviver_walk(js_ctx); + + /* [ ... holder name val enum obj_key new_elem ] */ + if (duk_is_undefined(ctx, -1)) { + duk_pop(ctx); + duk_del_prop(ctx, -3); + } else { + /* XXX: duk_xdef_prop_index_wec() would be more appropriate + * here but it currently makes some assumptions that might + * not hold (e.g. that previous property is not an accessor). + * + * Using duk_put_prop() works incorrectly with '__proto__' + * if the own property with that name has been deleted. This + * does not happen normally, but a clever reviver can trigger + * that, see complex reviver case in: test-bug-json-parse-__proto__.js. + */ + duk_put_prop(ctx, -4); + } + } + duk_pop(ctx); /* pop enum */ + } + } + + /* [ ... holder name val ] */ + + duk_dup(ctx, js_ctx->idx_reviver); + duk_insert(ctx, -4); /* -> [ ... reviver holder name val ] */ + duk_call_method(ctx, 2); /* -> [ ... res ] */ + + DUK_DDD(DUK_DDDPRINT("walk: top=%ld, result=%!T", + (long) duk_get_top(ctx), (duk_tval *) duk_get_tval(ctx, -1))); +} + +/* + * Stringify implementation. + */ + +#define DUK__EMIT_1(js_ctx,ch) duk__emit_1((js_ctx), (duk_uint_fast8_t) (ch)) +#define DUK__EMIT_2(js_ctx,ch1,ch2) duk__emit_2((js_ctx), (duk_uint_fast8_t) (ch1), (duk_uint_fast8_t) (ch2)) +#define DUK__EMIT_HSTR(js_ctx,h) duk__emit_hstring((js_ctx), (h)) +#if defined(DUK_USE_FASTINT) || defined(DUK_USE_JX) || defined(DUK_USE_JC) +#define DUK__EMIT_CSTR(js_ctx,p) duk__emit_cstring((js_ctx), (p)) +#endif +#define DUK__EMIT_STRIDX(js_ctx,i) duk__emit_stridx((js_ctx), (i)) +#define DUK__UNEMIT_1(js_ctx) duk__unemit_1((js_ctx)) + +DUK_LOCAL void duk__emit_1(duk_json_enc_ctx *js_ctx, duk_uint_fast8_t ch) { + DUK_BW_WRITE_ENSURE_U8(js_ctx->thr, &js_ctx->bw, ch); +} + +DUK_LOCAL void duk__emit_2(duk_json_enc_ctx *js_ctx, duk_uint_fast8_t ch1, duk_uint_fast8_t ch2) { + DUK_BW_WRITE_ENSURE_U8_2(js_ctx->thr, &js_ctx->bw, ch1, ch2); +} + +DUK_LOCAL void duk__emit_hstring(duk_json_enc_ctx *js_ctx, duk_hstring *h) { + DUK_BW_WRITE_ENSURE_HSTRING(js_ctx->thr, &js_ctx->bw, h); +} + +#if defined(DUK_USE_FASTINT) || defined(DUK_USE_JX) || defined(DUK_USE_JC) +DUK_LOCAL void duk__emit_cstring(duk_json_enc_ctx *js_ctx, const char *str) { + DUK_BW_WRITE_ENSURE_CSTRING(js_ctx->thr, &js_ctx->bw, str); +} +#endif + +DUK_LOCAL void duk__emit_stridx(duk_json_enc_ctx *js_ctx, duk_small_uint_t stridx) { + duk_hstring *h; + + DUK_ASSERT_DISABLE(stridx >= 0); /* unsigned */ + DUK_ASSERT(stridx < DUK_HEAP_NUM_STRINGS); + h = DUK_HTHREAD_GET_STRING(js_ctx->thr, stridx); + DUK_ASSERT(h != NULL); + + DUK_BW_WRITE_ENSURE_HSTRING(js_ctx->thr, &js_ctx->bw, h); +} + +DUK_LOCAL void duk__unemit_1(duk_json_enc_ctx *js_ctx) { + DUK_ASSERT(DUK_BW_GET_SIZE(js_ctx->thr, &js_ctx->bw) >= 1); + DUK_BW_ADD_PTR(js_ctx->thr, &js_ctx->bw, -1); +} + +#define DUK__MKESC(nybbles,esc1,esc2) \ + (((duk_uint_fast32_t) (nybbles)) << 16) | \ + (((duk_uint_fast32_t) (esc1)) << 8) | \ + ((duk_uint_fast32_t) (esc2)) + +DUK_LOCAL duk_uint8_t *duk__emit_esc_auto_fast(duk_json_enc_ctx *js_ctx, duk_uint_fast32_t cp, duk_uint8_t *q) { + duk_uint_fast32_t tmp; + duk_small_uint_t dig; + + DUK_UNREF(js_ctx); + + /* Caller ensures space for at least DUK__JSON_MAX_ESC_LEN. */ + + /* Select appropriate escape format automatically, and set 'tmp' to a + * value encoding both the escape format character and the nybble count: + * + * (nybble_count << 16) | (escape_char1) | (escape_char2) + */ + +#ifdef DUK_USE_JX + if (DUK_LIKELY(cp < 0x100UL)) { + if (DUK_UNLIKELY(js_ctx->flag_ext_custom)) { + tmp = DUK__MKESC(2, DUK_ASC_BACKSLASH, DUK_ASC_LC_X); + } else { + tmp = DUK__MKESC(4, DUK_ASC_BACKSLASH, DUK_ASC_LC_U); + } + } else +#endif + if (DUK_LIKELY(cp < 0x10000UL)) { + tmp = DUK__MKESC(4, DUK_ASC_BACKSLASH, DUK_ASC_LC_U); + } else { +#ifdef DUK_USE_JX + if (DUK_LIKELY(js_ctx->flag_ext_custom)) { + tmp = DUK__MKESC(8, DUK_ASC_BACKSLASH, DUK_ASC_UC_U); + } else +#endif + { + /* In compatible mode and standard JSON mode, output + * something useful for non-BMP characters. This won't + * roundtrip but will still be more or less readable and + * more useful than an error. + */ + tmp = DUK__MKESC(8, DUK_ASC_UC_U, DUK_ASC_PLUS); + } + } + + *q++ = (duk_uint8_t) ((tmp >> 8) & 0xff); + *q++ = (duk_uint8_t) (tmp & 0xff); + + tmp = tmp >> 16; + while (tmp > 0) { + tmp--; + dig = (duk_small_uint_t) ((cp >> (4 * tmp)) & 0x0f); + *q++ = duk_lc_digits[dig]; + } + + return q; +} + +DUK_LOCAL void duk__enc_key_autoquote(duk_json_enc_ctx *js_ctx, duk_hstring *k) { + const duk_int8_t *p, *p_start, *p_end; /* Note: intentionally signed. */ + duk_size_t k_len; + duk_codepoint_t cp; + + DUK_ASSERT(k != NULL); + + /* Accept ASCII strings which conform to identifier requirements + * as being emitted without key quotes. Since we only accept ASCII + * there's no need for actual decoding: 'p' is intentionally signed + * so that bytes >= 0x80 extend to negative values and are rejected + * as invalid identifier codepoints. + */ + + if (js_ctx->flag_avoid_key_quotes) { + k_len = DUK_HSTRING_GET_BYTELEN(k); + p_start = (const duk_int8_t *) DUK_HSTRING_GET_DATA(k); + p_end = p_start + k_len; + p = p_start; + + if (p == p_end) { + /* Zero length string is not accepted without quotes */ + goto quote_normally; + } + cp = (duk_codepoint_t) (*p++); + if (DUK_UNLIKELY(!duk_unicode_is_identifier_start(cp))) { + goto quote_normally; + } + while (p < p_end) { + cp = (duk_codepoint_t) (*p++); + if (DUK_UNLIKELY(!duk_unicode_is_identifier_part(cp))) { + goto quote_normally; + } + } + + /* This seems faster than emitting bytes one at a time and + * then potentially rewinding. + */ + DUK__EMIT_HSTR(js_ctx, k); + return; + } + + quote_normally: + duk__enc_quote_string(js_ctx, k); +} + +/* The Quote(value) operation: quote a string. + * + * Stack policy: [ ] -> [ ]. + */ + +DUK_LOCAL void duk__enc_quote_string(duk_json_enc_ctx *js_ctx, duk_hstring *h_str) { + duk_hthread *thr = js_ctx->thr; + const duk_uint8_t *p, *p_start, *p_end, *p_now, *p_tmp; + duk_uint8_t *q; + duk_ucodepoint_t cp; /* typed for duk_unicode_decode_xutf8() */ + + DUK_DDD(DUK_DDDPRINT("duk__enc_quote_string: h_str=%!O", (duk_heaphdr *) h_str)); + + DUK_ASSERT(h_str != NULL); + p_start = DUK_HSTRING_GET_DATA(h_str); + p_end = p_start + DUK_HSTRING_GET_BYTELEN(h_str); + p = p_start; + + DUK__EMIT_1(js_ctx, DUK_ASC_DOUBLEQUOTE); + + /* Encode string in small chunks, estimating the maximum expansion so that + * there's no need to ensure space while processing the chunk. + */ + + while (p < p_end) { + duk_size_t left, now, space; + + left = (duk_size_t) (p_end - p); + now = (left > DUK__JSON_ENCSTR_CHUNKSIZE ? + DUK__JSON_ENCSTR_CHUNKSIZE : left); + + /* Maximum expansion per input byte is 6: + * - invalid UTF-8 byte causes "\uXXXX" to be emitted (6/1 = 6). + * - 2-byte UTF-8 encodes as "\uXXXX" (6/2 = 3). + * - 4-byte UTF-8 encodes as "\Uxxxxxxxx" (10/4 = 2.5). + */ + space = now * 6; + q = DUK_BW_ENSURE_GETPTR(thr, &js_ctx->bw, space); + + p_now = p + now; + + while (p < p_now) { +#if defined(DUK_USE_JSON_QUOTESTRING_FASTPATH) + duk_uint8_t b; + + b = duk__json_quotestr_lookup[*p++]; + if (DUK_LIKELY(b < 0x80)) { + /* Most input bytes go through here. */ + *q++ = b; + } else if (b >= 0xa0) { + *q++ = DUK_ASC_BACKSLASH; + *q++ = (duk_uint8_t) (b - 0x80); + } else if (b == 0x80) { + cp = (duk_ucodepoint_t) (*(p - 1)); + q = duk__emit_esc_auto_fast(js_ctx, cp, q); + } else if (b == 0x7f && js_ctx->flag_ascii_only) { + /* 0x7F is special */ + DUK_ASSERT(b == 0x81); + cp = (duk_ucodepoint_t) 0x7f; + q = duk__emit_esc_auto_fast(js_ctx, cp, q); + } else { + DUK_ASSERT(b == 0x81); + p--; + + /* slow path is shared */ +#else /* DUK_USE_JSON_QUOTESTRING_FASTPATH */ + cp = *p; + + if (DUK_LIKELY(cp <= 0x7f)) { + /* ascii fast path: avoid decoding utf-8 */ + p++; + if (cp == 0x22 || cp == 0x5c) { + /* double quote or backslash */ + *q++ = DUK_ASC_BACKSLASH; + *q++ = (duk_uint8_t) cp; + } else if (cp < 0x20) { + duk_uint_fast8_t esc_char; + + /* This approach is a bit shorter than a straight + * if-else-ladder and also a bit faster. + */ + if (cp < (sizeof(duk__json_quotestr_esc) / sizeof(duk_uint8_t)) && + (esc_char = duk__json_quotestr_esc[cp]) != 0) { + *q++ = DUK_ASC_BACKSLASH; + *q++ = (duk_uint8_t) esc_char; + } else { + q = duk__emit_esc_auto_fast(js_ctx, cp, q); + } + } else if (cp == 0x7f && js_ctx->flag_ascii_only) { + q = duk__emit_esc_auto_fast(js_ctx, cp, q); + } else { + /* any other printable -> as is */ + *q++ = (duk_uint8_t) cp; + } + } else { + /* slow path is shared */ +#endif /* DUK_USE_JSON_QUOTESTRING_FASTPATH */ + + /* slow path decode */ + + /* If XUTF-8 decoding fails, treat the offending byte as a codepoint directly + * and go forward one byte. This is of course very lossy, but allows some kind + * of output to be produced even for internal strings which don't conform to + * XUTF-8. All standard Ecmascript strings are always CESU-8, so this behavior + * does not violate the Ecmascript specification. The behavior is applied to + * all modes, including Ecmascript standard JSON. Because the current XUTF-8 + * decoding is not very strict, this behavior only really affects initial bytes + * and truncated codepoints. + * + * Another alternative would be to scan forwards to start of next codepoint + * (or end of input) and emit just one replacement codepoint. + */ + + p_tmp = p; + if (!duk_unicode_decode_xutf8(thr, &p, p_start, p_end, &cp)) { + /* Decode failed. */ + cp = *p_tmp; + p = p_tmp + 1; + } + +#ifdef DUK_USE_NONSTD_JSON_ESC_U2028_U2029 + if (js_ctx->flag_ascii_only || cp == 0x2028 || cp == 0x2029) { +#else + if (js_ctx->flag_ascii_only) { +#endif + q = duk__emit_esc_auto_fast(js_ctx, cp, q); + } else { + /* as is */ + DUK_RAW_WRITE_XUTF8(q, cp); + } + } + } + + DUK_BW_SET_PTR(thr, &js_ctx->bw, q); + } + + DUK__EMIT_1(js_ctx, DUK_ASC_DOUBLEQUOTE); +} + +/* Encode a double (checked by caller) from stack top. Stack top may be + * replaced by serialized string but is not popped (caller does that). + */ +DUK_LOCAL void duk__enc_double(duk_json_enc_ctx *js_ctx) { + duk_hthread *thr; + duk_context *ctx; + duk_tval *tv; + duk_double_t d; + duk_small_int_t c; + duk_small_int_t s; + duk_small_uint_t stridx; + duk_small_uint_t n2s_flags; + duk_hstring *h_str; + + DUK_ASSERT(js_ctx != NULL); + thr = js_ctx->thr; + DUK_ASSERT(thr != NULL); + ctx = (duk_context *) thr; + + /* Caller must ensure 'tv' is indeed a double and not a fastint! */ + tv = DUK_GET_TVAL_NEGIDX(ctx, -1); + DUK_ASSERT(DUK_TVAL_IS_DOUBLE(tv)); + d = DUK_TVAL_GET_DOUBLE(tv); + + c = (duk_small_int_t) DUK_FPCLASSIFY(d); + s = (duk_small_int_t) DUK_SIGNBIT(d); + DUK_UNREF(s); + + if (DUK_LIKELY(!(c == DUK_FP_INFINITE || c == DUK_FP_NAN))) { + DUK_ASSERT(DUK_ISFINITE(d)); + +#if defined(DUK_USE_JX) || defined(DUK_USE_JC) + /* Negative zero needs special handling in JX/JC because + * it would otherwise serialize to '0', not '-0'. + */ + if (DUK_UNLIKELY(c == DUK_FP_ZERO && s != 0 && + (js_ctx->flag_ext_custom_or_compatible))) { + duk_push_hstring_stridx(ctx, DUK_STRIDX_MINUS_ZERO); /* '-0' */ + } else +#endif /* DUK_USE_JX || DUK_USE_JC */ + { + n2s_flags = 0; + /* [ ... number ] -> [ ... string ] */ + duk_numconv_stringify(ctx, 10 /*radix*/, 0 /*digits*/, n2s_flags); + } + h_str = duk_to_hstring(ctx, -1); + DUK_ASSERT(h_str != NULL); + DUK__EMIT_HSTR(js_ctx, h_str); + return; + } + +#if defined(DUK_USE_JX) || defined(DUK_USE_JC) + if (!(js_ctx->flags & (DUK_JSON_FLAG_EXT_CUSTOM | + DUK_JSON_FLAG_EXT_COMPATIBLE))) { + stridx = DUK_STRIDX_LC_NULL; + } else if (c == DUK_FP_NAN) { + stridx = js_ctx->stridx_custom_nan; + } else if (s == 0) { + stridx = js_ctx->stridx_custom_posinf; + } else { + stridx = js_ctx->stridx_custom_neginf; + } +#else + stridx = DUK_STRIDX_LC_NULL; +#endif + DUK__EMIT_STRIDX(js_ctx, stridx); +} + +#if defined(DUK_USE_FASTINT) +/* Encode a fastint from duk_tval ptr, no value stack effects. */ +DUK_LOCAL void duk__enc_fastint_tval(duk_json_enc_ctx *js_ctx, duk_tval *tv) { + duk_int64_t v; + + /* Fastint range is signed 48-bit so longest value is -2^47 = -140737488355328 + * (16 chars long), longest signed 64-bit value is -2^63 = -9223372036854775808 + * (20 chars long). Alloc space for 64-bit range to be safe. + */ + duk_uint8_t buf[20 + 1]; + + /* Caller must ensure 'tv' is indeed a fastint! */ + DUK_ASSERT(DUK_TVAL_IS_FASTINT(tv)); + v = DUK_TVAL_GET_FASTINT(tv); + + /* XXX: There are no format strings in duk_config.h yet, could add + * one for formatting duk_int64_t. For now, assumes "%lld" and that + * "long long" type exists. Could also rely on C99 directly but that + * won't work for older MSVC. + */ + DUK_SPRINTF((char *) buf, "%lld", (long long) v); + DUK__EMIT_CSTR(js_ctx, (const char *) buf); +} +#endif + +#if defined(DUK_USE_JX) || defined(DUK_USE_JC) +#if defined(DUK_USE_HEX_FASTPATH) +DUK_LOCAL duk_uint8_t *duk__enc_buffer_data_hex(const duk_uint8_t *src, duk_size_t src_len, duk_uint8_t *dst) { + duk_uint8_t *q; + duk_uint16_t *q16; + duk_small_uint_t x; + duk_size_t i, len_safe; +#if !defined(DUK_USE_UNALIGNED_ACCESSES_POSSIBLE) + duk_bool_t shift_dst; +#endif + + /* Unlike in duk_hex_encode() 'dst' is not necessarily aligned by 2. + * For platforms where unaligned accesses are not allowed, shift 'dst' + * ahead by 1 byte to get alignment and then DUK_MEMMOVE() the result + * in place. The faster encoding loop makes up the difference. + * There's always space for one extra byte because a terminator always + * follows the hex data and that's been accounted for by the caller. + */ + +#if defined(DUK_USE_UNALIGNED_ACCESSES_POSSIBLE) + q16 = (duk_uint16_t *) (void *) dst; +#else + shift_dst = (duk_bool_t) (((duk_size_t) dst) & 0x01U); + if (shift_dst) { + DUK_DD(DUK_DDPRINT("unaligned accesses not possible, dst not aligned -> step to dst + 1")); + q16 = (duk_uint16_t *) (void *) (dst + 1); + } else { + DUK_DD(DUK_DDPRINT("unaligned accesses not possible, dst is aligned")); + q16 = (duk_uint16_t *) (void *) dst; + } + DUK_ASSERT((((duk_size_t) q16) & 0x01U) == 0); +#endif + + len_safe = src_len & ~0x03U; + for (i = 0; i < len_safe; i += 4) { + q16[0] = duk_hex_enctab[src[i]]; + q16[1] = duk_hex_enctab[src[i + 1]]; + q16[2] = duk_hex_enctab[src[i + 2]]; + q16[3] = duk_hex_enctab[src[i + 3]]; + q16 += 4; + } + q = (duk_uint8_t *) q16; + +#if !defined(DUK_USE_UNALIGNED_ACCESSES_POSSIBLE) + if (shift_dst) { + q--; + DUK_MEMMOVE((void *) dst, (const void *) (dst + 1), 2 * len_safe); + DUK_ASSERT(dst + 2 * len_safe == q); + } +#endif + + for (; i < src_len; i++) { + x = src[i]; + *q++ = duk_lc_digits[x >> 4]; + *q++ = duk_lc_digits[x & 0x0f]; + } + + return q; +} +#else /* DUK_USE_HEX_FASTPATH */ +DUK_LOCAL duk_uint8_t *duk__enc_buffer_data_hex(const duk_uint8_t *src, duk_size_t src_len, duk_uint8_t *dst) { + const duk_uint8_t *p; + const duk_uint8_t *p_end; + duk_uint8_t *q; + duk_small_uint_t x; + + p = src; + p_end = src + src_len; + q = dst; + while (p != p_end) { + x = *p++; + *q++ = duk_lc_digits[x >> 4]; + *q++ = duk_lc_digits[x & 0x0f]; + } + + return q; +} +#endif /* DUK_USE_HEX_FASTPATH */ + +DUK_LOCAL void duk__enc_buffer_data(duk_json_enc_ctx *js_ctx, duk_uint8_t *buf_data, duk_size_t buf_len) { + duk_hthread *thr; + duk_uint8_t *q; + duk_size_t space; + + thr = js_ctx->thr; + + DUK_ASSERT(js_ctx->flag_ext_custom || js_ctx->flag_ext_compatible); /* caller checks */ + DUK_ASSERT(js_ctx->flag_ext_custom_or_compatible); + + /* Buffer values are encoded in (lowercase) hex to make the + * binary data readable. Base64 or similar would be more + * compact but less readable, and the point of JX/JC + * variants is to be as useful to a programmer as possible. + */ + + /* The #ifdef clutter here needs to handle the three cases: + * (1) JX+JC, (2) JX only, (3) JC only. + */ + + /* Note: space must cater for both JX and JC. */ + space = 9 + buf_len * 2 + 2; + DUK_ASSERT(DUK_HBUFFER_MAX_BYTELEN <= 0x7ffffffeUL); + DUK_ASSERT((space - 2) / 2 >= buf_len); /* overflow not possible, buffer limits */ + q = DUK_BW_ENSURE_GETPTR(thr, &js_ctx->bw, space); + +#if defined(DUK_USE_JX) && defined(DUK_USE_JC) + if (js_ctx->flag_ext_custom) +#endif +#if defined(DUK_USE_JX) + { + *q++ = DUK_ASC_PIPE; + q = duk__enc_buffer_data_hex(buf_data, buf_len, q); + *q++ = DUK_ASC_PIPE; + + } +#endif +#if defined(DUK_USE_JX) && defined(DUK_USE_JC) + else +#endif +#if defined(DUK_USE_JC) + { + DUK_ASSERT(js_ctx->flag_ext_compatible); + DUK_MEMCPY((void *) q, (const void *) "{\"_buf\":\"", 9); /* len: 9 */ + q += 9; + q = duk__enc_buffer_data_hex(buf_data, buf_len, q); + *q++ = DUK_ASC_DOUBLEQUOTE; + *q++ = DUK_ASC_RCURLY; + } +#endif + + DUK_BW_SET_PTR(thr, &js_ctx->bw, q); +} + +DUK_LOCAL void duk__enc_buffer(duk_json_enc_ctx *js_ctx, duk_hbuffer *h) { + duk__enc_buffer_data(js_ctx, + (duk_uint8_t *) DUK_HBUFFER_GET_DATA_PTR(js_ctx->thr->heap, h), + (duk_size_t) DUK_HBUFFER_GET_SIZE(h)); +} +#endif /* DUK_USE_JX || DUK_USE_JC */ + +#if defined(DUK_USE_JX) || defined(DUK_USE_JC) +DUK_LOCAL void duk__enc_pointer(duk_json_enc_ctx *js_ctx, void *ptr) { + char buf[64]; /* XXX: how to figure correct size? */ + const char *fmt; + + DUK_ASSERT(js_ctx->flag_ext_custom || js_ctx->flag_ext_compatible); /* caller checks */ + DUK_ASSERT(js_ctx->flag_ext_custom_or_compatible); + + DUK_MEMZERO(buf, sizeof(buf)); + + /* The #ifdef clutter here needs to handle the three cases: + * (1) JX+JC, (2) JX only, (3) JC only. + */ +#if defined(DUK_USE_JX) && defined(DUK_USE_JC) + if (js_ctx->flag_ext_custom) +#endif +#if defined(DUK_USE_JX) + { + fmt = ptr ? "(%p)" : "(null)"; + } +#endif +#if defined(DUK_USE_JX) && defined(DUK_USE_JC) + else +#endif +#if defined(DUK_USE_JC) + { + DUK_ASSERT(js_ctx->flag_ext_compatible); + fmt = ptr ? "{\"_ptr\":\"%p\"}" : "{\"_ptr\":\"null\"}"; + } +#endif + + /* When ptr == NULL, the format argument is unused. */ + DUK_SNPRINTF(buf, sizeof(buf) - 1, fmt, ptr); /* must not truncate */ + DUK__EMIT_CSTR(js_ctx, buf); +} +#endif /* DUK_USE_JX || DUK_USE_JC */ + +#if defined(DUK_USE_JX) || defined(DUK_USE_JC) +DUK_LOCAL void duk__enc_bufferobject(duk_json_enc_ctx *js_ctx, duk_hbufferobject *h_bufobj) { + DUK_ASSERT_HBUFFEROBJECT_VALID(h_bufobj); + + if (h_bufobj->buf == NULL || !DUK_HBUFFEROBJECT_VALID_SLICE(h_bufobj)) { + DUK__EMIT_STRIDX(js_ctx, DUK_STRIDX_LC_NULL); + } else { + /* Handle both full and partial slice (as long as covered). */ + duk__enc_buffer_data(js_ctx, + (duk_uint8_t *) DUK_HBUFFEROBJECT_GET_SLICE_BASE(js_ctx->thr->heap, h_bufobj), + (duk_size_t) h_bufobj->length); + } +} +#endif /* DUK_USE_JX || DUK_USE_JC */ + +/* Indent helper. Calling code relies on js_ctx->recursion_depth also being + * directly related to indent depth. + */ +#if defined(DUK_USE_PREFER_SIZE) +DUK_LOCAL void duk__enc_newline_indent(duk_json_enc_ctx *js_ctx, duk_int_t depth) { + DUK_ASSERT(js_ctx->h_gap != NULL); + DUK_ASSERT(DUK_HSTRING_GET_BYTELEN(js_ctx->h_gap) > 0); /* caller guarantees */ + + DUK__EMIT_1(js_ctx, 0x0a); + while (depth-- > 0) { + DUK__EMIT_HSTR(js_ctx, js_ctx->h_gap); + } +} +#else /* DUK_USE_PREFER_SIZE */ +DUK_LOCAL void duk__enc_newline_indent(duk_json_enc_ctx *js_ctx, duk_int_t depth) { + const duk_uint8_t *gap_data; + duk_size_t gap_len; + duk_size_t avail_bytes; /* bytes of indent available for copying */ + duk_size_t need_bytes; /* bytes of indent still needed */ + duk_uint8_t *p_start; + duk_uint8_t *p; + + DUK_ASSERT(js_ctx->h_gap != NULL); + DUK_ASSERT(DUK_HSTRING_GET_BYTELEN(js_ctx->h_gap) > 0); /* caller guarantees */ + + DUK__EMIT_1(js_ctx, 0x0a); + if (DUK_UNLIKELY(depth == 0)) { + return; + } + + /* To handle deeper indents efficiently, make use of copies we've + * already emitted. In effect we can emit a sequence of 1, 2, 4, + * 8, etc copies, and then finish the last run. Byte counters + * avoid multiply with gap_len on every loop. + */ + + gap_data = (const duk_uint8_t *) DUK_HSTRING_GET_DATA(js_ctx->h_gap); + gap_len = (duk_size_t) DUK_HSTRING_GET_BYTELEN(js_ctx->h_gap); + DUK_ASSERT(gap_len > 0); + + need_bytes = gap_len * depth; + p = DUK_BW_ENSURE_GETPTR(js_ctx->thr, &js_ctx->bw, need_bytes); + p_start = p; + + DUK_MEMCPY((void *) p, (const void *) gap_data, (size_t) gap_len); + p += gap_len; + avail_bytes = gap_len; + DUK_ASSERT(need_bytes >= gap_len); + need_bytes -= gap_len; + + while (need_bytes >= avail_bytes) { + DUK_MEMCPY((void *) p, (const void *) p_start, (size_t) avail_bytes); + p += avail_bytes; + need_bytes -= avail_bytes; + avail_bytes <<= 1; + } + + DUK_ASSERT(need_bytes < avail_bytes); /* need_bytes may be zero */ + DUK_MEMCPY((void *) p, (const void *) p_start, (size_t) need_bytes); + p += need_bytes; + /*avail_bytes += need_bytes*/ + + DUK_BW_SET_PTR(js_ctx->thr, &js_ctx->bw, p); +} +#endif /* DUK_USE_PREFER_SIZE */ + +/* Shared entry handling for object/array serialization. */ +DUK_LOCAL void duk__enc_objarr_entry(duk_json_enc_ctx *js_ctx, duk_idx_t *entry_top) { + duk_context *ctx = (duk_context *) js_ctx->thr; + duk_hobject *h_target; + duk_uint_fast32_t i, n; + + *entry_top = duk_get_top(ctx); + + duk_require_stack(ctx, DUK_JSON_ENC_REQSTACK); + + /* Loop check using a hybrid approach: a fixed-size visited[] array + * with overflow in a loop check object. + */ + + h_target = duk_get_hobject(ctx, -1); /* object or array */ + DUK_ASSERT(h_target != NULL); + + n = js_ctx->recursion_depth; + if (DUK_UNLIKELY(n > DUK_JSON_ENC_LOOPARRAY)) { + n = DUK_JSON_ENC_LOOPARRAY; + } + for (i = 0; i < n; i++) { + if (DUK_UNLIKELY(js_ctx->visiting[i] == h_target)) { + DUK_DD(DUK_DDPRINT("slow path loop detect")); + DUK_ERROR_TYPE((duk_hthread *) ctx, DUK_STR_CYCLIC_INPUT); + } + } + if (js_ctx->recursion_depth < DUK_JSON_ENC_LOOPARRAY) { + js_ctx->visiting[js_ctx->recursion_depth] = h_target; + } else { + duk_push_sprintf(ctx, DUK_STR_FMT_PTR, (void *) h_target); + duk_dup_top(ctx); /* -> [ ... voidp voidp ] */ + if (duk_has_prop(ctx, js_ctx->idx_loop)) { + DUK_ERROR_TYPE((duk_hthread *) ctx, DUK_STR_CYCLIC_INPUT); + } + duk_push_true(ctx); /* -> [ ... voidp true ] */ + duk_put_prop(ctx, js_ctx->idx_loop); /* -> [ ... ] */ + } + + /* C recursion check. */ + + DUK_ASSERT(js_ctx->recursion_depth >= 0); + DUK_ASSERT(js_ctx->recursion_depth <= js_ctx->recursion_limit); + if (js_ctx->recursion_depth >= js_ctx->recursion_limit) { + DUK_ERROR_RANGE((duk_hthread *) ctx, DUK_STR_JSONENC_RECLIMIT); + } + js_ctx->recursion_depth++; + + DUK_DDD(DUK_DDDPRINT("shared entry finished: top=%ld, loop=%!T", + (long) duk_get_top(ctx), (duk_tval *) duk_get_tval(ctx, js_ctx->idx_loop))); +} + +/* Shared exit handling for object/array serialization. */ +DUK_LOCAL void duk__enc_objarr_exit(duk_json_enc_ctx *js_ctx, duk_idx_t *entry_top) { + duk_context *ctx = (duk_context *) js_ctx->thr; + duk_hobject *h_target; + + /* C recursion check. */ + + DUK_ASSERT(js_ctx->recursion_depth > 0); + DUK_ASSERT(js_ctx->recursion_depth <= js_ctx->recursion_limit); + js_ctx->recursion_depth--; + + /* Loop check. */ + + h_target = duk_get_hobject(ctx, *entry_top - 1); /* original target at entry_top - 1 */ + DUK_ASSERT(h_target != NULL); + + if (js_ctx->recursion_depth < DUK_JSON_ENC_LOOPARRAY) { + /* Previous entry was inside visited[], nothing to do. */ + } else { + duk_push_sprintf(ctx, DUK_STR_FMT_PTR, (void *) h_target); + duk_del_prop(ctx, js_ctx->idx_loop); /* -> [ ... ] */ + } + + /* Restore stack top after unbalanced code paths. */ + duk_set_top(ctx, *entry_top); + + DUK_DDD(DUK_DDDPRINT("shared entry finished: top=%ld, loop=%!T", + (long) duk_get_top(ctx), (duk_tval *) duk_get_tval(ctx, js_ctx->idx_loop))); +} + +/* The JO(value) operation: encode object. + * + * Stack policy: [ object ] -> [ object ]. + */ +DUK_LOCAL void duk__enc_object(duk_json_enc_ctx *js_ctx) { + duk_context *ctx = (duk_context *) js_ctx->thr; + duk_hstring *h_key; + duk_idx_t entry_top; + duk_idx_t idx_obj; + duk_idx_t idx_keys; + duk_bool_t emitted; + duk_uarridx_t arr_len, i; + duk_size_t prev_size; + + DUK_DDD(DUK_DDDPRINT("duk__enc_object: obj=%!T", (duk_tval *) duk_get_tval(ctx, -1))); + + duk__enc_objarr_entry(js_ctx, &entry_top); + + idx_obj = entry_top - 1; + + if (js_ctx->idx_proplist >= 0) { + idx_keys = js_ctx->idx_proplist; + } else { + /* XXX: would be nice to enumerate an object at specified index */ + duk_dup(ctx, idx_obj); + (void) duk_hobject_get_enumerated_keys(ctx, DUK_ENUM_OWN_PROPERTIES_ONLY /*flags*/); /* [ ... target ] -> [ ... target keys ] */ + idx_keys = duk_require_normalize_index(ctx, -1); + /* leave stack unbalanced on purpose */ + } + + DUK_DDD(DUK_DDDPRINT("idx_keys=%ld, h_keys=%!T", + (long) idx_keys, (duk_tval *) duk_get_tval(ctx, idx_keys))); + + /* Steps 8-10 have been merged to avoid a "partial" variable. */ + + DUK__EMIT_1(js_ctx, DUK_ASC_LCURLY); + + /* XXX: keys is an internal object with all keys to be processed + * in its (gapless) array part. Because nobody can touch the keys + * object, we could iterate its array part directly (keeping in mind + * that it can be reallocated). + */ + + arr_len = (duk_uarridx_t) duk_get_length(ctx, idx_keys); + emitted = 0; + for (i = 0; i < arr_len; i++) { + duk_get_prop_index(ctx, idx_keys, i); /* -> [ ... key ] */ + + DUK_DDD(DUK_DDDPRINT("object property loop: holder=%!T, key=%!T", + (duk_tval *) duk_get_tval(ctx, idx_obj), + (duk_tval *) duk_get_tval(ctx, -1))); + + h_key = duk_get_hstring(ctx, -1); + DUK_ASSERT(h_key != NULL); + + prev_size = DUK_BW_GET_SIZE(js_ctx->thr, &js_ctx->bw); + if (DUK_UNLIKELY(js_ctx->h_gap != NULL)) { + duk__enc_newline_indent(js_ctx, js_ctx->recursion_depth); + duk__enc_key_autoquote(js_ctx, h_key); + DUK__EMIT_2(js_ctx, DUK_ASC_COLON, DUK_ASC_SPACE); + } else { + duk__enc_key_autoquote(js_ctx, h_key); + DUK__EMIT_1(js_ctx, DUK_ASC_COLON); + } + + /* [ ... key ] */ + + if (DUK_UNLIKELY(duk__enc_value(js_ctx, idx_obj) == 0)) { + /* Value would yield 'undefined', so skip key altogether. + * Side effects have already happened. + */ + DUK_BW_SET_SIZE(js_ctx->thr, &js_ctx->bw, prev_size); + } else { + DUK__EMIT_1(js_ctx, DUK_ASC_COMMA); + emitted = 1; + } + + /* [ ... ] */ + } + + if (emitted) { + DUK_ASSERT(*((duk_uint8_t *) DUK_BW_GET_PTR(js_ctx->thr, &js_ctx->bw) - 1) == DUK_ASC_COMMA); + DUK__UNEMIT_1(js_ctx); /* eat trailing comma */ + if (DUK_UNLIKELY(js_ctx->h_gap != NULL)) { + DUK_ASSERT(js_ctx->recursion_depth >= 1); + duk__enc_newline_indent(js_ctx, js_ctx->recursion_depth - 1); + } + } + DUK__EMIT_1(js_ctx, DUK_ASC_RCURLY); + + duk__enc_objarr_exit(js_ctx, &entry_top); + + DUK_ASSERT_TOP(ctx, entry_top); +} + +/* The JA(value) operation: encode array. + * + * Stack policy: [ array ] -> [ array ]. + */ +DUK_LOCAL void duk__enc_array(duk_json_enc_ctx *js_ctx) { + duk_context *ctx = (duk_context *) js_ctx->thr; + duk_idx_t entry_top; + duk_idx_t idx_arr; + duk_bool_t emitted; + duk_uarridx_t i, arr_len; + + DUK_DDD(DUK_DDDPRINT("duk__enc_array: array=%!T", + (duk_tval *) duk_get_tval(ctx, -1))); + + duk__enc_objarr_entry(js_ctx, &entry_top); + + idx_arr = entry_top - 1; + + /* Steps 8-10 have been merged to avoid a "partial" variable. */ + + DUK__EMIT_1(js_ctx, DUK_ASC_LBRACKET); + + arr_len = (duk_uarridx_t) duk_get_length(ctx, idx_arr); + emitted = 0; + for (i = 0; i < arr_len; i++) { + DUK_DDD(DUK_DDDPRINT("array entry loop: array=%!T, index=%ld, arr_len=%ld", + (duk_tval *) duk_get_tval(ctx, idx_arr), + (long) i, (long) arr_len)); + + if (DUK_UNLIKELY(js_ctx->h_gap != NULL)) { + DUK_ASSERT(js_ctx->recursion_depth >= 1); + duk__enc_newline_indent(js_ctx, js_ctx->recursion_depth); + } + + /* XXX: duk_push_uint_string() */ + duk_push_uint(ctx, (duk_uint_t) i); + duk_to_string(ctx, -1); /* -> [ ... key ] */ + + /* [ ... key ] */ + + if (DUK_UNLIKELY(duk__enc_value(js_ctx, idx_arr) == 0)) { + /* Value would normally be omitted, replace with 'null'. */ + DUK__EMIT_STRIDX(js_ctx, DUK_STRIDX_LC_NULL); + } else { + ; + } + + /* [ ... ] */ + + DUK__EMIT_1(js_ctx, DUK_ASC_COMMA); + emitted = 1; + } + + if (emitted) { + DUK_ASSERT(*((duk_uint8_t *) DUK_BW_GET_PTR(js_ctx->thr, &js_ctx->bw) - 1) == DUK_ASC_COMMA); + DUK__UNEMIT_1(js_ctx); /* eat trailing comma */ + if (DUK_UNLIKELY(js_ctx->h_gap != NULL)) { + DUK_ASSERT(js_ctx->recursion_depth >= 1); + duk__enc_newline_indent(js_ctx, js_ctx->recursion_depth - 1); + } + } + DUK__EMIT_1(js_ctx, DUK_ASC_RBRACKET); + + duk__enc_objarr_exit(js_ctx, &entry_top); + + DUK_ASSERT_TOP(ctx, entry_top); +} + +/* The Str(key, holder) operation. + * + * Stack policy: [ ... key ] -> [ ... ] + */ +DUK_LOCAL duk_bool_t duk__enc_value(duk_json_enc_ctx *js_ctx, duk_idx_t idx_holder) { + duk_context *ctx = (duk_context *) js_ctx->thr; + duk_hthread *thr = (duk_hthread *) ctx; + duk_hobject *h; + duk_tval *tv; + duk_tval *tv_holder; + duk_tval *tv_key; + duk_small_int_t c; + + DUK_DDD(DUK_DDDPRINT("duk__enc_value: idx_holder=%ld, holder=%!T, key=%!T", + (long) idx_holder, (duk_tval *) duk_get_tval(ctx, idx_holder), + (duk_tval *) duk_get_tval(ctx, -1))); + + DUK_UNREF(thr); + + tv_holder = DUK_GET_TVAL_POSIDX(ctx, idx_holder); + DUK_ASSERT(DUK_TVAL_IS_OBJECT(tv_holder)); + tv_key = DUK_GET_TVAL_NEGIDX(ctx, -1); + DUK_ASSERT(DUK_TVAL_IS_STRING(tv_key)); + (void) duk_hobject_getprop(thr, tv_holder, tv_key); + + /* -> [ ... key val ] */ + + DUK_DDD(DUK_DDDPRINT("value=%!T", (duk_tval *) duk_get_tval(ctx, -1))); + + h = duk_get_hobject_or_lfunc_coerce(ctx, -1); + if (h != NULL) { + duk_get_prop_stridx(ctx, -1, DUK_STRIDX_TO_JSON); + h = duk_get_hobject_or_lfunc_coerce(ctx, -1); /* toJSON() can also be a lightfunc */ + + if (h != NULL && DUK_HOBJECT_IS_CALLABLE(h)) { + DUK_DDD(DUK_DDDPRINT("value is object, has callable toJSON() -> call it")); + /* XXX: duk_dup_unvalidated(ctx, -2) etc. */ + duk_dup(ctx, -2); /* -> [ ... key val toJSON val ] */ + duk_dup(ctx, -4); /* -> [ ... key val toJSON val key ] */ + duk_call_method(ctx, 1); /* -> [ ... key val val' ] */ + duk_remove(ctx, -2); /* -> [ ... key val' ] */ + } else { + duk_pop(ctx); /* -> [ ... key val ] */ + } + } + + /* [ ... key val ] */ + + DUK_DDD(DUK_DDDPRINT("value=%!T", (duk_tval *) duk_get_tval(ctx, -1))); + + if (js_ctx->h_replacer) { + /* XXX: Here a "slice copy" would be useful. */ + DUK_DDD(DUK_DDDPRINT("replacer is set, call replacer")); + duk_push_hobject(ctx, js_ctx->h_replacer); /* -> [ ... key val replacer ] */ + duk_dup(ctx, idx_holder); /* -> [ ... key val replacer holder ] */ + duk_dup(ctx, -4); /* -> [ ... key val replacer holder key ] */ + duk_dup(ctx, -4); /* -> [ ... key val replacer holder key val ] */ + duk_call_method(ctx, 2); /* -> [ ... key val val' ] */ + duk_remove(ctx, -2); /* -> [ ... key val' ] */ + } + + /* [ ... key val ] */ + + DUK_DDD(DUK_DDDPRINT("value=%!T", (duk_tval *) duk_get_tval(ctx, -1))); + + tv = DUK_GET_TVAL_NEGIDX(ctx, -1); + if (DUK_TVAL_IS_OBJECT(tv)) { + h = DUK_TVAL_GET_OBJECT(tv); + DUK_ASSERT(h != NULL); + + if (DUK_HOBJECT_IS_BUFFEROBJECT(h)) { +#if defined(DUK_USE_JX) || defined(DUK_USE_JC) + duk_hbufferobject *h_bufobj; + h_bufobj = (duk_hbufferobject *) h; + DUK_ASSERT_HBUFFEROBJECT_VALID(h_bufobj); + + /* Conceptually we'd extract the plain underlying buffer + * or its slice and then do a type mask check below to + * see if we should reject it. Do the mask check here + * instead to avoid making a copy of the buffer slice. + */ + + if (js_ctx->mask_for_undefined & DUK_TYPE_MASK_BUFFER) { + DUK_DDD(DUK_DDDPRINT("-> bufferobject (-> plain buffer) will result in undefined (type mask check)")); + goto pop2_undef; + } + DUK_DDD(DUK_DDDPRINT("-> bufferobject won't result in undefined, encode directly")); + duk__enc_bufferobject(js_ctx, h_bufobj); + goto pop2_emitted; +#else + DUK_DDD(DUK_DDDPRINT("no JX/JC support, bufferobject/buffer will always result in undefined")); + goto pop2_undef; +#endif + } else { + c = (duk_small_int_t) DUK_HOBJECT_GET_CLASS_NUMBER(h); + switch ((int) c) { + case DUK_HOBJECT_CLASS_NUMBER: { + DUK_DDD(DUK_DDDPRINT("value is a Number object -> coerce with ToNumber()")); + duk_to_number(ctx, -1); + /* The coercion potentially invokes user .valueOf() and .toString() + * but can't result in a function value because [[DefaultValue]] would + * reject such a result: test-dev-json-stringify-coercion-1.js. + */ + DUK_ASSERT(!duk_is_callable(ctx, -1)); + break; + } + case DUK_HOBJECT_CLASS_STRING: { + DUK_DDD(DUK_DDDPRINT("value is a String object -> coerce with ToString()")); + duk_to_string(ctx, -1); + /* Same coercion behavior as for Number. */ + DUK_ASSERT(!duk_is_callable(ctx, -1)); + break; + } +#if defined(DUK_USE_JX) || defined(DUK_USE_JC) + case DUK_HOBJECT_CLASS_POINTER: +#endif + case DUK_HOBJECT_CLASS_BOOLEAN: { + DUK_DDD(DUK_DDDPRINT("value is a Boolean/Buffer/Pointer object -> get internal value")); + duk_get_prop_stridx(ctx, -1, DUK_STRIDX_INT_VALUE); + duk_remove(ctx, -2); + break; + } + default: { + /* Normal object which doesn't get automatically coerced to a + * primitive value. Functions are checked for specially. The + * primitive value coercions for Number, String, Pointer, and + * Boolean can't result in functions so suffices to check here. + */ + DUK_ASSERT(h != NULL); + if (DUK_HOBJECT_IS_CALLABLE(h)) { +#if defined(DUK_USE_JX) || defined(DUK_USE_JC) + if (js_ctx->flags & (DUK_JSON_FLAG_EXT_CUSTOM | + DUK_JSON_FLAG_EXT_COMPATIBLE)) { + /* We only get here when doing non-standard JSON encoding */ + DUK_DDD(DUK_DDDPRINT("-> function allowed, serialize to custom format")); + DUK_ASSERT(js_ctx->flag_ext_custom || js_ctx->flag_ext_compatible); + DUK__EMIT_STRIDX(js_ctx, js_ctx->stridx_custom_function); + goto pop2_emitted; + } else { + DUK_DDD(DUK_DDDPRINT("-> will result in undefined (function)")); + goto pop2_undef; + } +#else /* DUK_USE_JX || DUK_USE_JC */ + DUK_DDD(DUK_DDDPRINT("-> will result in undefined (function)")); + goto pop2_undef; +#endif /* DUK_USE_JX || DUK_USE_JC */ + } + } + } /* end switch */ + } + } + + /* [ ... key val ] */ + + DUK_DDD(DUK_DDDPRINT("value=%!T", (duk_tval *) duk_get_tval(ctx, -1))); + + if (duk_check_type_mask(ctx, -1, js_ctx->mask_for_undefined)) { + /* will result in undefined */ + DUK_DDD(DUK_DDDPRINT("-> will result in undefined (type mask check)")); + goto pop2_undef; + } + tv = DUK_GET_TVAL_NEGIDX(ctx, -1); + + switch (DUK_TVAL_GET_TAG(tv)) { +#if defined(DUK_USE_JX) || defined(DUK_USE_JC) + /* When JX/JC not in use, the type mask above will avoid this case if needed. */ + case DUK_TAG_UNDEFINED: { + DUK__EMIT_STRIDX(js_ctx, js_ctx->stridx_custom_undefined); + break; + } +#endif + case DUK_TAG_NULL: { + DUK__EMIT_STRIDX(js_ctx, DUK_STRIDX_LC_NULL); + break; + } + case DUK_TAG_BOOLEAN: { + DUK__EMIT_STRIDX(js_ctx, DUK_TVAL_GET_BOOLEAN(tv) ? + DUK_STRIDX_TRUE : DUK_STRIDX_FALSE); + break; + } +#if defined(DUK_USE_JX) || defined(DUK_USE_JC) + /* When JX/JC not in use, the type mask above will avoid this case if needed. */ + case DUK_TAG_POINTER: { + duk__enc_pointer(js_ctx, DUK_TVAL_GET_POINTER(tv)); + break; + } +#endif /* DUK_USE_JX || DUK_USE_JC */ + case DUK_TAG_STRING: { + duk_hstring *h = DUK_TVAL_GET_STRING(tv); + DUK_ASSERT(h != NULL); + + duk__enc_quote_string(js_ctx, h); + break; + } + case DUK_TAG_OBJECT: { + duk_hobject *h = DUK_TVAL_GET_OBJECT(tv); + DUK_ASSERT(h != NULL); + + /* Function values are handled completely above (including + * coercion results): + */ + DUK_ASSERT(!DUK_HOBJECT_IS_CALLABLE(h)); + + if (DUK_HOBJECT_GET_CLASS_NUMBER(h) == DUK_HOBJECT_CLASS_ARRAY) { + duk__enc_array(js_ctx); + } else { + duk__enc_object(js_ctx); + } + break; + } +#if defined(DUK_USE_JX) || defined(DUK_USE_JC) + /* When JX/JC not in use, the type mask above will avoid this case if needed. */ + case DUK_TAG_BUFFER: { + duk__enc_buffer(js_ctx, DUK_TVAL_GET_BUFFER(tv)); + break; + } +#endif /* DUK_USE_JX || DUK_USE_JC */ + case DUK_TAG_LIGHTFUNC: { +#if defined(DUK_USE_JX) || defined(DUK_USE_JC) + /* We only get here when doing non-standard JSON encoding */ + DUK_ASSERT(js_ctx->flag_ext_custom || js_ctx->flag_ext_compatible); + DUK__EMIT_STRIDX(js_ctx, js_ctx->stridx_custom_function); +#else + /* Standard JSON omits functions */ + DUK_UNREACHABLE(); +#endif + break; + } +#if defined(DUK_USE_FASTINT) + case DUK_TAG_FASTINT: + /* Number serialization has a significant impact relative to + * other fast path code, so careful fast path for fastints. + */ + duk__enc_fastint_tval(js_ctx, tv); + break; +#endif + default: { + /* number */ + DUK_ASSERT(!DUK_TVAL_IS_UNUSED(tv)); + DUK_ASSERT(DUK_TVAL_IS_NUMBER(tv)); + /* XXX: A fast path for usual integers would be useful when + * fastint support is not enabled. + */ + duk__enc_double(js_ctx); + break; + } + } + + pop2_emitted: + duk_pop_2(ctx); /* [ ... key val ] -> [ ... ] */ + return 1; /* emitted */ + + pop2_undef: + duk_pop_2(ctx); /* [ ... key val ] -> [ ... ] */ + return 0; /* not emitted */ +} + +/* E5 Section 15.12.3, main algorithm, step 4.b.ii steps 1-4. */ +DUK_LOCAL duk_bool_t duk__enc_allow_into_proplist(duk_tval *tv) { + duk_hobject *h; + duk_small_int_t c; + + DUK_ASSERT(tv != NULL); + if (DUK_TVAL_IS_STRING(tv) || DUK_TVAL_IS_NUMBER(tv)) { + return 1; + } else if (DUK_TVAL_IS_OBJECT(tv)) { + h = DUK_TVAL_GET_OBJECT(tv); + DUK_ASSERT(h != NULL); + c = (duk_small_int_t) DUK_HOBJECT_GET_CLASS_NUMBER(h); + if (c == DUK_HOBJECT_CLASS_STRING || c == DUK_HOBJECT_CLASS_NUMBER) { + return 1; + } + } + + return 0; +} + +/* + * JSON.stringify() fast path + * + * Otherwise supports full JSON, JX, and JC features, but bails out on any + * possible side effect which might change the value being serialized. The + * fast path can take advantage of the fact that the value being serialized + * is unchanged so that we can walk directly through property tables etc. + */ + +#if defined(DUK_USE_JSON_STRINGIFY_FASTPATH) +DUK_LOCAL duk_bool_t duk__json_stringify_fast_value(duk_json_enc_ctx *js_ctx, duk_tval *tv) { + duk_uint_fast32_t i, n; + + DUK_DDD(DUK_DDDPRINT("stringify fast: %!T", tv)); + + DUK_ASSERT(js_ctx != NULL); + DUK_ASSERT(js_ctx->thr != NULL); + +#if 0 /* disabled for now */ + restart_match: +#endif + + DUK_ASSERT(tv != NULL); + + switch (DUK_TVAL_GET_TAG(tv)) { + case DUK_TAG_UNDEFINED: { +#if defined(DUK_USE_JX) || defined(DUK_USE_JC) + if (js_ctx->flag_ext_custom || js_ctx->flag_ext_compatible) { + DUK__EMIT_STRIDX(js_ctx, js_ctx->stridx_custom_undefined); + break; + } else { + goto emit_undefined; + } +#else + goto emit_undefined; +#endif + } + case DUK_TAG_NULL: { + DUK__EMIT_STRIDX(js_ctx, DUK_STRIDX_LC_NULL); + break; + } + case DUK_TAG_BOOLEAN: { + DUK__EMIT_STRIDX(js_ctx, DUK_TVAL_GET_BOOLEAN(tv) ? + DUK_STRIDX_TRUE : DUK_STRIDX_FALSE); + break; + } + case DUK_TAG_STRING: { + duk_hstring *h; + + h = DUK_TVAL_GET_STRING(tv); + DUK_ASSERT(h != NULL); + duk__enc_quote_string(js_ctx, h); + break; + } + case DUK_TAG_OBJECT: { + duk_hobject *obj; + duk_tval *tv_val; + duk_bool_t emitted = 0; + duk_uint32_t c_bit, c_all, c_array, c_unbox, c_undef, + c_func, c_bufobj, c_object; + + /* For objects JSON.stringify() only looks for own, enumerable + * properties which is nice for the fast path here. + * + * For arrays JSON.stringify() uses [[Get]] so it will actually + * inherit properties during serialization! This fast path + * supports gappy arrays as long as there's no actual inherited + * property (which might be a getter etc). + * + * Since recursion only happens for objects, we can have both + * recursion and loop checks here. We use a simple, depth-limited + * loop check in the fast path because the object-based tracking + * is very slow (when tested, it accounted for 50% of fast path + * execution time for input data with a lot of small objects!). + */ + + /* XXX: for real world code, could just ignore array inheritance + * and only look at array own properties. + */ + + /* We rely on a few object flag / class number relationships here, + * assert for them. + */ + + obj = DUK_TVAL_GET_OBJECT(tv); + DUK_ASSERT(obj != NULL); + DUK_ASSERT_HOBJECT_VALID(obj); + + /* Once recursion depth is increased, exit path must decrease + * it (though it's OK to abort the fast path). + */ + + DUK_ASSERT(js_ctx->recursion_depth >= 0); + DUK_ASSERT(js_ctx->recursion_depth <= js_ctx->recursion_limit); + if (js_ctx->recursion_depth >= js_ctx->recursion_limit) { + DUK_DD(DUK_DDPRINT("fast path recursion limit")); + DUK_ERROR_RANGE(js_ctx->thr, DUK_STR_JSONDEC_RECLIMIT); + } + + for (i = 0, n = (duk_uint_fast32_t) js_ctx->recursion_depth; i < n; i++) { + if (DUK_UNLIKELY(js_ctx->visiting[i] == obj)) { + DUK_DD(DUK_DDPRINT("fast path loop detect")); + DUK_ERROR_TYPE(js_ctx->thr, DUK_STR_CYCLIC_INPUT); + } + } + + /* Guaranteed by recursion_limit setup so we don't have to + * check twice. + */ + DUK_ASSERT(js_ctx->recursion_depth < DUK_JSON_ENC_LOOPARRAY); + js_ctx->visiting[js_ctx->recursion_depth] = obj; + js_ctx->recursion_depth++; + + /* If object has a .toJSON() property, we can't be certain + * that it wouldn't mutate any value arbitrarily, so bail + * out of the fast path. + * + * If an object is a Proxy we also can't avoid side effects + * so abandon. + */ + /* XXX: non-callable .toJSON() doesn't need to cause an abort + * but does at the moment, probably not worth fixing. + */ + if (duk_hobject_hasprop_raw(js_ctx->thr, obj, DUK_HTHREAD_STRING_TO_JSON(js_ctx->thr)) || + DUK_HOBJECT_HAS_EXOTIC_PROXYOBJ(obj)) { + DUK_DD(DUK_DDPRINT("object has a .toJSON property or object is a Proxy, abort fast path")); + goto abort_fastpath; + } + + /* We could use a switch-case for the class number but it turns out + * a small if-else ladder on class masks is better. The if-ladder + * should be in order of relevancy. + */ + + /* XXX: move masks to js_ctx? they don't change during one + * fast path invocation. + */ + DUK_ASSERT(DUK_HOBJECT_CLASS_MAX <= 31); +#if defined(DUK_USE_JX) || defined(DUK_USE_JC) + if (js_ctx->flag_ext_custom_or_compatible) { + c_all = DUK_HOBJECT_CMASK_ALL; + c_array = DUK_HOBJECT_CMASK_ARRAY; + c_unbox = DUK_HOBJECT_CMASK_NUMBER | + DUK_HOBJECT_CMASK_STRING | + DUK_HOBJECT_CMASK_BOOLEAN | + DUK_HOBJECT_CMASK_POINTER; + c_func = DUK_HOBJECT_CMASK_FUNCTION; + c_bufobj = DUK_HOBJECT_CMASK_ALL_BUFFEROBJECTS; + c_undef = 0; + c_object = c_all & ~(c_array | c_unbox | c_func | c_bufobj | c_undef); + } + else +#endif + { + c_all = DUK_HOBJECT_CMASK_ALL; + c_array = DUK_HOBJECT_CMASK_ARRAY; + c_unbox = DUK_HOBJECT_CMASK_NUMBER | + DUK_HOBJECT_CMASK_STRING | + DUK_HOBJECT_CMASK_BOOLEAN; + c_func = 0; + c_bufobj = 0; + c_undef = DUK_HOBJECT_CMASK_FUNCTION | + DUK_HOBJECT_CMASK_POINTER | + DUK_HOBJECT_CMASK_ALL_BUFFEROBJECTS; + c_object = c_all & ~(c_array | c_unbox | c_func | c_bufobj | c_undef); + } + + c_bit = DUK_HOBJECT_GET_CLASS_MASK(obj); + if (c_bit & c_object) { + /* All other object types. */ + DUK__EMIT_1(js_ctx, DUK_ASC_LCURLY); + + /* A non-Array object should not have an array part in practice. + * But since it is supported internally (and perhaps used at some + * point), check and abandon if that's the case. + */ + if (DUK_HOBJECT_HAS_ARRAY_PART(obj)) { + DUK_DD(DUK_DDPRINT("non-Array object has array part, abort fast path")); + goto abort_fastpath; + } + + for (i = 0; i < (duk_uint_fast32_t) DUK_HOBJECT_GET_ENEXT(obj); i++) { + duk_hstring *k; + duk_size_t prev_size; + + k = DUK_HOBJECT_E_GET_KEY(js_ctx->thr->heap, obj, i); + if (!k) { + continue; + } + if (!DUK_HOBJECT_E_SLOT_IS_ENUMERABLE(js_ctx->thr->heap, obj, i)) { + continue; + } + if (DUK_HOBJECT_E_SLOT_IS_ACCESSOR(js_ctx->thr->heap, obj, i)) { + /* Getter might have arbitrary side effects, + * so bail out. + */ + DUK_DD(DUK_DDPRINT("property is an accessor, abort fast path")); + goto abort_fastpath; + } + if (DUK_HSTRING_HAS_INTERNAL(k)) { + continue; + } + + tv_val = DUK_HOBJECT_E_GET_VALUE_TVAL_PTR(js_ctx->thr->heap, obj, i); + + prev_size = DUK_BW_GET_SIZE(js_ctx->thr, &js_ctx->bw); + if (DUK_UNLIKELY(js_ctx->h_gap != NULL)) { + duk__enc_newline_indent(js_ctx, js_ctx->recursion_depth); + duk__enc_key_autoquote(js_ctx, k); + DUK__EMIT_2(js_ctx, DUK_ASC_COLON, DUK_ASC_SPACE); + } else { + duk__enc_key_autoquote(js_ctx, k); + DUK__EMIT_1(js_ctx, DUK_ASC_COLON); + } + + if (duk__json_stringify_fast_value(js_ctx, tv_val) == 0) { + DUK_DD(DUK_DDPRINT("prop value not supported, rewind key and colon")); + DUK_BW_SET_SIZE(js_ctx->thr, &js_ctx->bw, prev_size); + } else { + DUK__EMIT_1(js_ctx, DUK_ASC_COMMA); + emitted = 1; + } + } + + /* If any non-Array value had enumerable virtual own + * properties, they should be serialized here. Standard + * types don't. + */ + + if (emitted) { + DUK_ASSERT(*((duk_uint8_t *) DUK_BW_GET_PTR(js_ctx->thr, &js_ctx->bw) - 1) == DUK_ASC_COMMA); + DUK__UNEMIT_1(js_ctx); /* eat trailing comma */ + if (DUK_UNLIKELY(js_ctx->h_gap != NULL)) { + DUK_ASSERT(js_ctx->recursion_depth >= 1); + duk__enc_newline_indent(js_ctx, js_ctx->recursion_depth - 1); + } + } + DUK__EMIT_1(js_ctx, DUK_ASC_RCURLY); + } else if (c_bit & c_array) { + duk_uint_fast32_t arr_len; + duk_uint_fast32_t asize; + + DUK__EMIT_1(js_ctx, DUK_ASC_LBRACKET); + + /* Assume arrays are dense in the fast path. */ + if (!DUK_HOBJECT_HAS_ARRAY_PART(obj)) { + DUK_DD(DUK_DDPRINT("Array object is sparse, abort fast path")); + goto abort_fastpath; + } + + arr_len = (duk_uint_fast32_t) duk_hobject_get_length(js_ctx->thr, obj); + asize = (duk_uint_fast32_t) DUK_HOBJECT_GET_ASIZE(obj); + if (arr_len > asize) { + /* Array length is larger than 'asize'. This shouldn't + * happen in practice. Bail out just in case. + */ + DUK_DD(DUK_DDPRINT("arr_len > asize, abort fast path")); + goto abort_fastpath; + } + /* Array part may be larger than 'length'; if so, iterate + * only up to array 'length'. + */ + for (i = 0; i < arr_len; i++) { + DUK_ASSERT(i < (duk_uint_fast32_t) DUK_HOBJECT_GET_ASIZE(obj)); + + tv_val = DUK_HOBJECT_A_GET_VALUE_PTR(js_ctx->thr->heap, obj, i); + + if (DUK_UNLIKELY(js_ctx->h_gap != NULL)) { + duk__enc_newline_indent(js_ctx, js_ctx->recursion_depth); + } + + if (DUK_UNLIKELY(DUK_TVAL_IS_UNUSED(tv_val))) { + /* Gap in array; check for inherited property, + * bail out if one exists. This should be enough + * to support gappy arrays for all practical code. + */ + duk_hstring *h_tmp; + duk_bool_t has_inherited; + + /* XXX: refactor into an internal helper, pretty awkward */ + duk_push_uint((duk_context *) js_ctx->thr, (duk_uint_t) i); + h_tmp = duk_to_hstring((duk_context *) js_ctx->thr, -1); + DUK_ASSERT(h_tmp != NULL); + has_inherited = duk_hobject_hasprop_raw(js_ctx->thr, obj, h_tmp); + duk_pop((duk_context *) js_ctx->thr); + + if (has_inherited) { + DUK_D(DUK_DPRINT("gap in array, conflicting inherited property, abort fast path")); + goto abort_fastpath; + } + + /* Ordinary gap, undefined encodes to 'null' in + * standard JSON (and no JX/JC support here now). + */ + DUK_D(DUK_DPRINT("gap in array, no conflicting inherited property, remain on fast path")); + DUK__EMIT_STRIDX(js_ctx, DUK_STRIDX_LC_NULL); + } else { + if (duk__json_stringify_fast_value(js_ctx, tv_val) == 0) { + DUK__EMIT_STRIDX(js_ctx, DUK_STRIDX_LC_NULL); + } + } + DUK__EMIT_1(js_ctx, DUK_ASC_COMMA); + emitted = 1; + } + + if (emitted) { + DUK_ASSERT(*((duk_uint8_t *) DUK_BW_GET_PTR(js_ctx->thr, &js_ctx->bw) - 1) == DUK_ASC_COMMA); + DUK__UNEMIT_1(js_ctx); /* eat trailing comma */ + if (DUK_UNLIKELY(js_ctx->h_gap != NULL)) { + DUK_ASSERT(js_ctx->recursion_depth >= 1); + duk__enc_newline_indent(js_ctx, js_ctx->recursion_depth - 1); + } + } + DUK__EMIT_1(js_ctx, DUK_ASC_RBRACKET); + } else if (c_bit & c_unbox) { + /* Certain boxed types are required to go through + * automatic unboxing. Rely on internal value being + * sane (to avoid infinite recursion). + */ +#if 1 + /* The code below is incorrect if .toString() or .valueOf() have + * have been overridden. The correct approach would be to look up + * the method(s) and if they resolve to the built-in function we + * can safely bypass it and look up the internal value directly. + * Unimplemented for now, abort fast path for boxed values. + */ + goto abort_fastpath; +#else /* disabled */ + /* Disabled until fixed, see above. */ + duk_tval *tv_internal; + + DUK_DD(DUK_DDPRINT("auto unboxing in fast path")); + + tv_internal = duk_hobject_get_internal_value_tval_ptr(js_ctx->thr->heap, obj); + DUK_ASSERT(tv_internal != NULL); + DUK_ASSERT(DUK_TVAL_IS_STRING(tv_internal) || + DUK_TVAL_IS_NUMBER(tv_internal) || + DUK_TVAL_IS_BOOLEAN(tv_internal) || + DUK_TVAL_IS_POINTER(tv_internal)); + + tv = tv_internal; + DUK_ASSERT(js_ctx->recursion_depth > 0); + js_ctx->recursion_depth--; /* required to keep recursion depth correct */ + goto restart_match; +#endif /* disabled */ +#if defined(DUK_USE_JX) || defined(DUK_USE_JC) + } else if (c_bit & c_func) { + DUK__EMIT_STRIDX(js_ctx, js_ctx->stridx_custom_function); + } else if (c_bit & c_bufobj) { + duk__enc_bufferobject(js_ctx, (duk_hbufferobject *) obj); +#endif + } else { + DUK_ASSERT((c_bit & c_undef) != 0); + + /* Must decrease recursion depth before returning. */ + DUK_ASSERT(js_ctx->recursion_depth > 0); + DUK_ASSERT(js_ctx->recursion_depth <= js_ctx->recursion_limit); + js_ctx->recursion_depth--; + goto emit_undefined; + } + + DUK_ASSERT(js_ctx->recursion_depth > 0); + DUK_ASSERT(js_ctx->recursion_depth <= js_ctx->recursion_limit); + js_ctx->recursion_depth--; + break; + } + case DUK_TAG_BUFFER: { +#if defined(DUK_USE_JX) || defined(DUK_USE_JC) + if (js_ctx->flag_ext_custom_or_compatible) { + duk__enc_buffer(js_ctx, DUK_TVAL_GET_BUFFER(tv)); + break; + } else { + goto emit_undefined; + } +#else + goto emit_undefined; +#endif + } + case DUK_TAG_POINTER: { +#if defined(DUK_USE_JX) || defined(DUK_USE_JC) + if (js_ctx->flag_ext_custom_or_compatible) { + duk__enc_pointer(js_ctx, DUK_TVAL_GET_POINTER(tv)); + break; + } else { + goto emit_undefined; + } +#else + goto emit_undefined; +#endif + } + case DUK_TAG_LIGHTFUNC: { + /* A lightfunc might also inherit a .toJSON() so just bail out. */ + /* XXX: Could just lookup .toJSON() and continue in fast path, + * as it would almost never be defined. + */ + DUK_DD(DUK_DDPRINT("value is a lightfunc, abort fast path")); + goto abort_fastpath; + } +#if defined(DUK_USE_FASTINT) + case DUK_TAG_FASTINT: { + /* Number serialization has a significant impact relative to + * other fast path code, so careful fast path for fastints. + */ + duk__enc_fastint_tval(js_ctx, tv); + break; + } +#endif + default: { + /* XXX: A fast path for usual integers would be useful when + * fastint support is not enabled. + */ + DUK_ASSERT(!DUK_TVAL_IS_UNUSED(tv)); + DUK_ASSERT(DUK_TVAL_IS_NUMBER(tv)); + + /* XXX: Stack discipline is annoying, could be changed in numconv. */ + duk_push_tval((duk_context *) js_ctx->thr, tv); + duk__enc_double(js_ctx); + duk_pop((duk_context *) js_ctx->thr); + +#if 0 + /* Could also rely on native sprintf(), but it will handle + * values like NaN, Infinity, -0, exponent notation etc in + * a JSON-incompatible way. + */ + duk_double_t d; + char buf[64]; + + DUK_ASSERT(DUK_TVAL_IS_DOUBLE(tv)); + d = DUK_TVAL_GET_DOUBLE(tv); + DUK_SPRINTF(buf, "%lg", d); + DUK__EMIT_CSTR(js_ctx, buf); +#endif + } + } + return 1; /* not undefined */ + + emit_undefined: + return 0; /* value was undefined/unsupported */ + + abort_fastpath: + /* Error message doesn't matter: the error is ignored anyway. */ + DUK_DD(DUK_DDPRINT("aborting fast path")); + DUK_ERROR_INTERNAL_DEFMSG(js_ctx->thr); + return 0; /* unreachable */ +} + +DUK_LOCAL duk_ret_t duk__json_stringify_fast(duk_context *ctx) { + duk_json_enc_ctx *js_ctx; + duk_tval *tv; + + DUK_ASSERT(ctx != NULL); + tv = DUK_GET_TVAL_NEGIDX(ctx, -2); + DUK_ASSERT(DUK_TVAL_IS_POINTER(tv)); + js_ctx = (duk_json_enc_ctx *) DUK_TVAL_GET_POINTER(tv); + DUK_ASSERT(js_ctx != NULL); + + tv = DUK_GET_TVAL_NEGIDX(ctx, -1); + if (duk__json_stringify_fast_value(js_ctx, tv) == 0) { + DUK_DD(DUK_DDPRINT("top level value not supported, fail fast path")); + return DUK_RET_ERROR; /* error message doesn't matter, ignored anyway */ + } + + return 0; +} +#endif /* DUK_USE_JSON_STRINGIFY_FASTPATH */ + +/* + * Top level wrappers + */ + +DUK_INTERNAL +void duk_bi_json_parse_helper(duk_context *ctx, + duk_idx_t idx_value, + duk_idx_t idx_reviver, + duk_small_uint_t flags) { + duk_hthread *thr = (duk_hthread *) ctx; + duk_json_dec_ctx js_ctx_alloc; + duk_json_dec_ctx *js_ctx = &js_ctx_alloc; + duk_hstring *h_text; +#ifdef DUK_USE_ASSERTIONS + duk_idx_t entry_top = duk_get_top(ctx); +#endif + + /* negative top-relative indices not allowed now */ + DUK_ASSERT(idx_value == DUK_INVALID_INDEX || idx_value >= 0); + DUK_ASSERT(idx_reviver == DUK_INVALID_INDEX || idx_reviver >= 0); + + DUK_DDD(DUK_DDDPRINT("JSON parse start: text=%!T, reviver=%!T, flags=0x%08lx, stack_top=%ld", + (duk_tval *) duk_get_tval(ctx, idx_value), + (duk_tval *) duk_get_tval(ctx, idx_reviver), + (unsigned long) flags, + (long) duk_get_top(ctx))); + + DUK_MEMZERO(&js_ctx_alloc, sizeof(js_ctx_alloc)); + js_ctx->thr = thr; +#ifdef DUK_USE_EXPLICIT_NULL_INIT + /* nothing now */ +#endif + js_ctx->recursion_limit = DUK_USE_JSON_DEC_RECLIMIT; + DUK_ASSERT(js_ctx->recursion_depth == 0); + + /* Flag handling currently assumes that flags are consistent. This is OK + * because the call sites are now strictly controlled. + */ + + js_ctx->flags = flags; +#if defined(DUK_USE_JX) + js_ctx->flag_ext_custom = flags & DUK_JSON_FLAG_EXT_CUSTOM; +#endif +#if defined(DUK_USE_JC) + js_ctx->flag_ext_compatible = flags & DUK_JSON_FLAG_EXT_COMPATIBLE; +#endif +#if defined(DUK_USE_JX) || defined(DUK_USE_JC) + js_ctx->flag_ext_custom_or_compatible = flags & (DUK_JSON_FLAG_EXT_CUSTOM | DUK_JSON_FLAG_EXT_COMPATIBLE); +#endif + + h_text = duk_to_hstring(ctx, idx_value); /* coerce in-place */ + DUK_ASSERT(h_text != NULL); + + /* JSON parsing code is allowed to read [p_start,p_end]: p_end is + * valid and points to the string NUL terminator (which is always + * guaranteed for duk_hstrings. + */ + js_ctx->p_start = (const duk_uint8_t *) DUK_HSTRING_GET_DATA(h_text); + js_ctx->p = js_ctx->p_start; + js_ctx->p_end = ((const duk_uint8_t *) DUK_HSTRING_GET_DATA(h_text)) + + DUK_HSTRING_GET_BYTELEN(h_text); + DUK_ASSERT(*(js_ctx->p_end) == 0x00); + + duk__dec_value(js_ctx); /* -> [ ... value ] */ + + /* Trailing whitespace has been eaten by duk__dec_value(), so if + * we're not at end of input here, it's a SyntaxError. + */ + + if (js_ctx->p != js_ctx->p_end) { + duk__dec_syntax_error(js_ctx); + } + + if (duk_is_callable(ctx, idx_reviver)) { + DUK_DDD(DUK_DDDPRINT("applying reviver: %!T", + (duk_tval *) duk_get_tval(ctx, idx_reviver))); + + js_ctx->idx_reviver = idx_reviver; + + duk_push_object(ctx); + duk_dup(ctx, -2); /* -> [ ... val root val ] */ + duk_put_prop_stridx(ctx, -2, DUK_STRIDX_EMPTY_STRING); /* default attrs ok */ + duk_push_hstring_stridx(ctx, DUK_STRIDX_EMPTY_STRING); /* -> [ ... val root "" ] */ + + DUK_DDD(DUK_DDDPRINT("start reviver walk, root=%!T, name=%!T", + (duk_tval *) duk_get_tval(ctx, -2), + (duk_tval *) duk_get_tval(ctx, -1))); + + duk__dec_reviver_walk(js_ctx); /* [ ... val root "" ] -> [ ... val val' ] */ + duk_remove(ctx, -2); /* -> [ ... val' ] */ + } else { + DUK_DDD(DUK_DDDPRINT("reviver does not exist or is not callable: %!T", + (duk_tval *) duk_get_tval(ctx, idx_reviver))); + } + + /* Final result is at stack top. */ + + DUK_DDD(DUK_DDDPRINT("JSON parse end: text=%!T, reviver=%!T, flags=0x%08lx, result=%!T, stack_top=%ld", + (duk_tval *) duk_get_tval(ctx, idx_value), + (duk_tval *) duk_get_tval(ctx, idx_reviver), + (unsigned long) flags, + (duk_tval *) duk_get_tval(ctx, -1), + (long) duk_get_top(ctx))); + + DUK_ASSERT(duk_get_top(ctx) == entry_top + 1); +} + +DUK_INTERNAL +void duk_bi_json_stringify_helper(duk_context *ctx, + duk_idx_t idx_value, + duk_idx_t idx_replacer, + duk_idx_t idx_space, + duk_small_uint_t flags) { + duk_hthread *thr = (duk_hthread *) ctx; + duk_json_enc_ctx js_ctx_alloc; + duk_json_enc_ctx *js_ctx = &js_ctx_alloc; + duk_hobject *h; + duk_idx_t idx_holder; + duk_idx_t entry_top; + + /* negative top-relative indices not allowed now */ + DUK_ASSERT(idx_value == DUK_INVALID_INDEX || idx_value >= 0); + DUK_ASSERT(idx_replacer == DUK_INVALID_INDEX || idx_replacer >= 0); + DUK_ASSERT(idx_space == DUK_INVALID_INDEX || idx_space >= 0); + + DUK_DDD(DUK_DDDPRINT("JSON stringify start: value=%!T, replacer=%!T, space=%!T, flags=0x%08lx, stack_top=%ld", + (duk_tval *) duk_get_tval(ctx, idx_value), + (duk_tval *) duk_get_tval(ctx, idx_replacer), + (duk_tval *) duk_get_tval(ctx, idx_space), + (unsigned long) flags, + (long) duk_get_top(ctx))); + + entry_top = duk_get_top(ctx); + + /* + * Context init + */ + + DUK_MEMZERO(&js_ctx_alloc, sizeof(js_ctx_alloc)); + js_ctx->thr = thr; +#ifdef DUK_USE_EXPLICIT_NULL_INIT + js_ctx->h_replacer = NULL; + js_ctx->h_gap = NULL; +#endif + js_ctx->idx_proplist = -1; + + /* Flag handling currently assumes that flags are consistent. This is OK + * because the call sites are now strictly controlled. + */ + + js_ctx->flags = flags; + js_ctx->flag_ascii_only = flags & DUK_JSON_FLAG_ASCII_ONLY; + js_ctx->flag_avoid_key_quotes = flags & DUK_JSON_FLAG_AVOID_KEY_QUOTES; +#ifdef DUK_USE_JX + js_ctx->flag_ext_custom = flags & DUK_JSON_FLAG_EXT_CUSTOM; +#endif +#ifdef DUK_USE_JC + js_ctx->flag_ext_compatible = flags & DUK_JSON_FLAG_EXT_COMPATIBLE; +#endif +#if defined(DUK_USE_JX) || defined(DUK_USE_JC) + js_ctx->flag_ext_custom_or_compatible = flags & (DUK_JSON_FLAG_EXT_CUSTOM | DUK_JSON_FLAG_EXT_COMPATIBLE); +#endif + + /* The #ifdef clutter here handles the JX/JC enable/disable + * combinations properly. + */ +#if defined(DUK_USE_JX) || defined(DUK_USE_JC) +#if defined(DUK_USE_JX) + if (flags & DUK_JSON_FLAG_EXT_CUSTOM) { + js_ctx->stridx_custom_undefined = DUK_STRIDX_LC_UNDEFINED; + js_ctx->stridx_custom_nan = DUK_STRIDX_NAN; + js_ctx->stridx_custom_neginf = DUK_STRIDX_MINUS_INFINITY; + js_ctx->stridx_custom_posinf = DUK_STRIDX_INFINITY; + js_ctx->stridx_custom_function = + (flags & DUK_JSON_FLAG_AVOID_KEY_QUOTES) ? + DUK_STRIDX_JSON_EXT_FUNCTION2 : + DUK_STRIDX_JSON_EXT_FUNCTION1; + } +#endif /* DUK_USE_JX */ +#if defined(DUK_USE_JX) && defined(DUK_USE_JC) + else +#endif /* DUK_USE_JX && DUK_USE_JC */ +#if defined(DUK_USE_JC) + if (js_ctx->flags & DUK_JSON_FLAG_EXT_COMPATIBLE) { + js_ctx->stridx_custom_undefined = DUK_STRIDX_JSON_EXT_UNDEFINED; + js_ctx->stridx_custom_nan = DUK_STRIDX_JSON_EXT_NAN; + js_ctx->stridx_custom_neginf = DUK_STRIDX_JSON_EXT_NEGINF; + js_ctx->stridx_custom_posinf = DUK_STRIDX_JSON_EXT_POSINF; + js_ctx->stridx_custom_function = DUK_STRIDX_JSON_EXT_FUNCTION1; + } +#endif /* DUK_USE_JC */ +#endif /* DUK_USE_JX || DUK_USE_JC */ + +#if defined(DUK_USE_JX) || defined(DUK_USE_JC) + if (js_ctx->flags & (DUK_JSON_FLAG_EXT_CUSTOM | + DUK_JSON_FLAG_EXT_COMPATIBLE)) { + DUK_ASSERT(js_ctx->mask_for_undefined == 0); /* already zero */ + } + else +#endif /* DUK_USE_JX || DUK_USE_JC */ + { + js_ctx->mask_for_undefined = DUK_TYPE_MASK_UNDEFINED | + DUK_TYPE_MASK_POINTER | + DUK_TYPE_MASK_BUFFER | + DUK_TYPE_MASK_LIGHTFUNC; + } + + DUK_BW_INIT_PUSHBUF(thr, &js_ctx->bw, DUK__JSON_STRINGIFY_BUFSIZE); + + js_ctx->idx_loop = duk_push_object_internal(ctx); + DUK_ASSERT(js_ctx->idx_loop >= 0); + + /* [ ... buf loop ] */ + + /* + * Process replacer/proplist (2nd argument to JSON.stringify) + */ + + h = duk_get_hobject(ctx, idx_replacer); + if (h != NULL) { + if (DUK_HOBJECT_IS_CALLABLE(h)) { + js_ctx->h_replacer = h; + } else if (DUK_HOBJECT_GET_CLASS_NUMBER(h) == DUK_HOBJECT_CLASS_ARRAY) { + /* Here the specification requires correct array index enumeration + * which is a bit tricky for sparse arrays (it is handled by the + * enum setup code). We now enumerate ancestors too, although the + * specification is not very clear on whether that is required. + */ + + duk_uarridx_t plist_idx = 0; + duk_small_uint_t enum_flags; + + js_ctx->idx_proplist = duk_push_array(ctx); /* XXX: array internal? */ + + enum_flags = DUK_ENUM_ARRAY_INDICES_ONLY | + DUK_ENUM_SORT_ARRAY_INDICES; /* expensive flag */ + duk_enum(ctx, idx_replacer, enum_flags); + while (duk_next(ctx, -1 /*enum_index*/, 1 /*get_value*/)) { + /* [ ... proplist enum_obj key val ] */ + if (duk__enc_allow_into_proplist(duk_get_tval(ctx, -1))) { + /* XXX: duplicates should be eliminated here */ + DUK_DDD(DUK_DDDPRINT("proplist enum: key=%!T, val=%!T --> accept", + (duk_tval *) duk_get_tval(ctx, -2), + (duk_tval *) duk_get_tval(ctx, -1))); + duk_to_string(ctx, -1); /* extra coercion of strings is OK */ + duk_put_prop_index(ctx, -4, plist_idx); /* -> [ ... proplist enum_obj key ] */ + plist_idx++; + duk_pop(ctx); + } else { + DUK_DDD(DUK_DDDPRINT("proplist enum: key=%!T, val=%!T --> reject", + (duk_tval *) duk_get_tval(ctx, -2), + (duk_tval *) duk_get_tval(ctx, -1))); + duk_pop_2(ctx); + } + } + duk_pop(ctx); /* pop enum */ + + /* [ ... proplist ] */ + } + } + + /* [ ... buf loop (proplist) ] */ + + /* + * Process space (3rd argument to JSON.stringify) + */ + + h = duk_get_hobject(ctx, idx_space); + if (h != NULL) { + int c = DUK_HOBJECT_GET_CLASS_NUMBER(h); + if (c == DUK_HOBJECT_CLASS_NUMBER) { + duk_to_number(ctx, idx_space); + } else if (c == DUK_HOBJECT_CLASS_STRING) { + duk_to_string(ctx, idx_space); + } + } + + if (duk_is_number(ctx, idx_space)) { + duk_small_int_t nspace; + /* spaces[] must be static to allow initializer with old compilers like BCC */ + static const char spaces[10] = { + DUK_ASC_SPACE, DUK_ASC_SPACE, DUK_ASC_SPACE, DUK_ASC_SPACE, + DUK_ASC_SPACE, DUK_ASC_SPACE, DUK_ASC_SPACE, DUK_ASC_SPACE, + DUK_ASC_SPACE, DUK_ASC_SPACE + }; /* XXX: helper */ + + /* ToInteger() coercion; NaN -> 0, infinities are clamped to 0 and 10 */ + nspace = (duk_small_int_t) duk_to_int_clamped(ctx, idx_space, 0 /*minval*/, 10 /*maxval*/); + DUK_ASSERT(nspace >= 0 && nspace <= 10); + + duk_push_lstring(ctx, spaces, (duk_size_t) nspace); + js_ctx->h_gap = duk_get_hstring(ctx, -1); + DUK_ASSERT(js_ctx->h_gap != NULL); + } else if (duk_is_string(ctx, idx_space)) { + /* XXX: substring in-place at idx_place? */ + duk_dup(ctx, idx_space); + duk_substring(ctx, -1, 0, 10); /* clamp to 10 chars */ + js_ctx->h_gap = duk_get_hstring(ctx, -1); + DUK_ASSERT(js_ctx->h_gap != NULL); + } else { + /* nop */ + } + + if (js_ctx->h_gap != NULL) { + /* if gap is empty, behave as if not given at all */ + if (DUK_HSTRING_GET_CHARLEN(js_ctx->h_gap) == 0) { + js_ctx->h_gap = NULL; + } + } + + /* [ ... buf loop (proplist) (gap) ] */ + + /* + * Fast path: assume no mutation, iterate object property tables + * directly; bail out if that assumption doesn't hold. + */ + +#if defined(DUK_USE_JSON_STRINGIFY_FASTPATH) + if (js_ctx->h_replacer == NULL && /* replacer is a mutation risk */ + js_ctx->idx_proplist == -1) { /* proplist is very rare */ + duk_int_t pcall_rc; +#ifdef DUK_USE_MARK_AND_SWEEP + duk_small_uint_t prev_mark_and_sweep_base_flags; +#endif + + DUK_DD(DUK_DDPRINT("try JSON.stringify() fast path")); + + /* Use recursion_limit to ensure we don't overwrite js_ctx->visiting[] + * array so we don't need two counter checks in the fast path. The + * slow path has a much larger recursion limit which we'll use if + * necessary. + */ + DUK_ASSERT(DUK_USE_JSON_ENC_RECLIMIT >= DUK_JSON_ENC_LOOPARRAY); + js_ctx->recursion_limit = DUK_JSON_ENC_LOOPARRAY; + DUK_ASSERT(js_ctx->recursion_depth == 0); + + /* Execute the fast path in a protected call. If any error is thrown, + * fall back to the slow path. This includes e.g. recursion limit + * because the fast path has a smaller recursion limit (and simpler, + * limited loop detection). + */ + + duk_push_pointer(ctx, (void *) js_ctx); + duk_dup(ctx, idx_value); + +#if defined(DUK_USE_MARK_AND_SWEEP) + /* Must prevent finalizers which may have arbitrary side effects. */ + prev_mark_and_sweep_base_flags = thr->heap->mark_and_sweep_base_flags; + thr->heap->mark_and_sweep_base_flags |= + DUK_MS_FLAG_NO_FINALIZERS | /* avoid attempts to add/remove object keys */ + DUK_MS_FLAG_NO_OBJECT_COMPACTION; /* avoid attempt to compact any objects */ +#endif + + pcall_rc = duk_safe_call(ctx, duk__json_stringify_fast, 2 /*nargs*/, 0 /*nret*/); + +#if defined(DUK_USE_MARK_AND_SWEEP) + thr->heap->mark_and_sweep_base_flags = prev_mark_and_sweep_base_flags; +#endif + if (pcall_rc == DUK_EXEC_SUCCESS) { + DUK_DD(DUK_DDPRINT("fast path successful")); + DUK_BW_PUSH_AS_STRING(thr, &js_ctx->bw); + goto replace_finished; + } + + /* We come here for actual aborts (like encountering .toJSON()) + * but also for recursion/loop errors. Bufwriter size can be + * kept because we'll probably need at least as much as we've + * allocated so far. + */ + DUK_D(DUK_DPRINT("fast path failed, serialize using slow path instead")); + DUK_BW_RESET_SIZE(thr, &js_ctx->bw); + js_ctx->recursion_depth = 0; + } +#endif + + /* + * Create wrapper object and serialize + */ + + idx_holder = duk_push_object(ctx); + duk_dup(ctx, idx_value); + duk_put_prop_stridx(ctx, -2, DUK_STRIDX_EMPTY_STRING); + + DUK_DDD(DUK_DDDPRINT("before: flags=0x%08lx, loop=%!T, replacer=%!O, " + "proplist=%!T, gap=%!O, holder=%!T", + (unsigned long) js_ctx->flags, + (duk_tval *) duk_get_tval(ctx, js_ctx->idx_loop), + (duk_heaphdr *) js_ctx->h_replacer, + (duk_tval *) (js_ctx->idx_proplist >= 0 ? duk_get_tval(ctx, js_ctx->idx_proplist) : NULL), + (duk_heaphdr *) js_ctx->h_gap, + (duk_tval *) duk_get_tval(ctx, -1))); + + /* serialize the wrapper with empty string key */ + + duk_push_hstring_stridx(ctx, DUK_STRIDX_EMPTY_STRING); + + /* [ ... buf loop (proplist) (gap) holder "" ] */ + + js_ctx->recursion_limit = DUK_USE_JSON_ENC_RECLIMIT; + DUK_ASSERT(js_ctx->recursion_depth == 0); + + if (DUK_UNLIKELY(duk__enc_value(js_ctx, idx_holder) == 0)) { /* [ ... holder key ] -> [ ... holder ] */ + /* Result is undefined. */ + duk_push_undefined(ctx); + } else { + /* Convert buffer to result string. */ + DUK_BW_PUSH_AS_STRING(thr, &js_ctx->bw); + } + + DUK_DDD(DUK_DDDPRINT("after: flags=0x%08lx, loop=%!T, replacer=%!O, " + "proplist=%!T, gap=%!O, holder=%!T", + (unsigned long) js_ctx->flags, + (duk_tval *) duk_get_tval(ctx, js_ctx->idx_loop), + (duk_heaphdr *) js_ctx->h_replacer, + (duk_tval *) (js_ctx->idx_proplist >= 0 ? duk_get_tval(ctx, js_ctx->idx_proplist) : NULL), + (duk_heaphdr *) js_ctx->h_gap, + (duk_tval *) duk_get_tval(ctx, idx_holder))); + + /* The stack has a variable shape here, so force it to the + * desired one explicitly. + */ + +#if defined(DUK_USE_JSON_STRINGIFY_FASTPATH) + replace_finished: +#endif + duk_replace(ctx, entry_top); + duk_set_top(ctx, entry_top + 1); + + DUK_DDD(DUK_DDDPRINT("JSON stringify end: value=%!T, replacer=%!T, space=%!T, " + "flags=0x%08lx, result=%!T, stack_top=%ld", + (duk_tval *) duk_get_tval(ctx, idx_value), + (duk_tval *) duk_get_tval(ctx, idx_replacer), + (duk_tval *) duk_get_tval(ctx, idx_space), + (unsigned long) flags, + (duk_tval *) duk_get_tval(ctx, -1), + (long) duk_get_top(ctx))); + + DUK_ASSERT(duk_get_top(ctx) == entry_top + 1); +} + +/* + * Entry points + */ + +DUK_INTERNAL duk_ret_t duk_bi_json_object_parse(duk_context *ctx) { + duk_bi_json_parse_helper(ctx, + 0 /*idx_value*/, + 1 /*idx_replacer*/, + 0 /*flags*/); + return 1; +} + +DUK_INTERNAL duk_ret_t duk_bi_json_object_stringify(duk_context *ctx) { + duk_bi_json_stringify_helper(ctx, + 0 /*idx_value*/, + 1 /*idx_replacer*/, + 2 /*idx_space*/, + 0 /*flags*/); + return 1; +} + +#undef DUK__JSON_DECSTR_BUFSIZE +#undef DUK__JSON_DECSTR_CHUNKSIZE +#undef DUK__JSON_ENCSTR_CHUNKSIZE +#undef DUK__JSON_STRINGIFY_BUFSIZE +#undef DUK__JSON_MAX_ESC_LEN +#line 1 "duk_bi_logger.c" +/* + * Logging support + */ + +/* include removed: duk_internal.h */ + +/* 3-letter log level strings */ +DUK_LOCAL const duk_uint8_t duk__log_level_strings[] = { + (duk_uint8_t) DUK_ASC_UC_T, (duk_uint8_t) DUK_ASC_UC_R, (duk_uint8_t) DUK_ASC_UC_C, + (duk_uint8_t) DUK_ASC_UC_D, (duk_uint8_t) DUK_ASC_UC_B, (duk_uint8_t) DUK_ASC_UC_G, + (duk_uint8_t) DUK_ASC_UC_I, (duk_uint8_t) DUK_ASC_UC_N, (duk_uint8_t) DUK_ASC_UC_F, + (duk_uint8_t) DUK_ASC_UC_W, (duk_uint8_t) DUK_ASC_UC_R, (duk_uint8_t) DUK_ASC_UC_N, + (duk_uint8_t) DUK_ASC_UC_E, (duk_uint8_t) DUK_ASC_UC_R, (duk_uint8_t) DUK_ASC_UC_R, + (duk_uint8_t) DUK_ASC_UC_F, (duk_uint8_t) DUK_ASC_UC_T, (duk_uint8_t) DUK_ASC_UC_L +}; + +/* Constructor */ +DUK_INTERNAL duk_ret_t duk_bi_logger_constructor(duk_context *ctx) { + duk_hthread *thr = (duk_hthread *) ctx; + duk_idx_t nargs; + + /* Calling as a non-constructor is not meaningful. */ + if (!duk_is_constructor_call(ctx)) { + return DUK_RET_TYPE_ERROR; + } + + nargs = duk_get_top(ctx); + duk_set_top(ctx, 1); + + duk_push_this(ctx); + + /* [ name this ] */ + + if (nargs == 0) { + /* Automatic defaulting of logger name from caller. This would + * work poorly with tail calls, but constructor calls are currently + * never tail calls, so tail calls are not an issue now. + */ + + if (thr->callstack_top >= 2) { + duk_activation *act_caller = thr->callstack + thr->callstack_top - 2; + duk_hobject *func_caller; + + func_caller = DUK_ACT_GET_FUNC(act_caller); + if (func_caller) { + /* Stripping the filename might be a good idea + * ("/foo/bar/quux.js" -> logger name "quux"), + * but now used verbatim. + */ + duk_push_hobject(ctx, func_caller); + duk_get_prop_stridx(ctx, -1, DUK_STRIDX_FILE_NAME); + duk_replace(ctx, 0); + } + } + } + /* the stack is unbalanced here on purpose; we only rely on the + * initial two values: [ name this ]. + */ + + if (duk_is_string(ctx, 0)) { + duk_dup(ctx, 0); + duk_put_prop_stridx(ctx, 1, DUK_STRIDX_LC_N); + } else { + /* don't set 'n' at all, inherited value is used as name */ + } + + duk_compact(ctx, 1); + + return 0; /* keep default instance */ +} + +/* Default function to format objects. Tries to use toLogString() but falls + * back to toString(). Any errors are propagated out without catching. + */ +DUK_INTERNAL duk_ret_t duk_bi_logger_prototype_fmt(duk_context *ctx) { + if (duk_get_prop_stridx(ctx, 0, DUK_STRIDX_TO_LOG_STRING)) { + /* [ arg toLogString ] */ + + duk_dup(ctx, 0); + duk_call_method(ctx, 0); + + /* [ arg result ] */ + return 1; + } + + /* [ arg undefined ] */ + duk_pop(ctx); + duk_to_string(ctx, 0); + return 1; +} + +/* Default function to write a formatted log line. Writes to stderr, + * appending a newline to the log line. + * + * The argument is a buffer whose visible size contains the log message. + * This function should avoid coercing the buffer to a string to avoid + * string table traffic. + */ +DUK_INTERNAL duk_ret_t duk_bi_logger_prototype_raw(duk_context *ctx) { + const char *data; + duk_size_t data_len; + + DUK_UNREF(ctx); + DUK_UNREF(data); + DUK_UNREF(data_len); + +#ifdef DUK_USE_FILE_IO + data = (const char *) duk_require_buffer(ctx, 0, &data_len); + DUK_FWRITE((const void *) data, 1, data_len, DUK_STDERR); + DUK_FPUTC((int) '\n', DUK_STDERR); + DUK_FFLUSH(DUK_STDERR); +#else + /* nop */ +#endif + return 0; +} + +/* Log frontend shared helper, magic value indicates log level. Provides + * frontend functions: trace(), debug(), info(), warn(), error(), fatal(). + * This needs to have small footprint, reasonable performance, minimal + * memory churn, etc. + */ +DUK_INTERNAL duk_ret_t duk_bi_logger_prototype_log_shared(duk_context *ctx) { + duk_hthread *thr = (duk_hthread *) ctx; + duk_double_t now; + duk_small_int_t entry_lev = duk_get_current_magic(ctx); + duk_small_int_t logger_lev; + duk_int_t nargs; + duk_int_t i; + duk_size_t tot_len; + const duk_uint8_t *arg_str; + duk_size_t arg_len; + duk_uint8_t *buf, *p; + const duk_uint8_t *q; + duk_uint8_t date_buf[DUK_BI_DATE_ISO8601_BUFSIZE]; + duk_size_t date_len; + duk_small_int_t rc; + + DUK_ASSERT(entry_lev >= 0 && entry_lev <= 5); + DUK_UNREF(thr); + + /* XXX: sanitize to printable (and maybe ASCII) */ + /* XXX: better multiline */ + + /* + * Logger arguments are: + * + * magic: log level (0-5) + * this: logger + * stack: plain log args + * + * We want to minimize memory churn so a two-pass approach + * is used: first pass formats arguments and computes final + * string length, second pass copies strings either into a + * pre-allocated and reused buffer (short messages) or into a + * newly allocated fixed buffer. If the backend function plays + * nice, it won't coerce the buffer to a string (and thus + * intern it). + */ + + nargs = duk_get_top(ctx); + + /* [ arg1 ... argN this ] */ + + /* + * Log level check + */ + + duk_push_this(ctx); + + duk_get_prop_stridx(ctx, -1, DUK_STRIDX_LC_L); + logger_lev = (duk_small_int_t) duk_get_int(ctx, -1); + if (entry_lev < logger_lev) { + return 0; + } + /* log level could be popped but that's not necessary */ + + now = DUK_USE_DATE_GET_NOW(ctx); + duk_bi_date_format_timeval(now, date_buf); + date_len = DUK_STRLEN((const char *) date_buf); + + duk_get_prop_stridx(ctx, -2, DUK_STRIDX_LC_N); + duk_to_string(ctx, -1); + DUK_ASSERT(duk_is_string(ctx, -1)); + + /* [ arg1 ... argN this loggerLevel loggerName ] */ + + /* + * Pass 1 + */ + + /* Line format: