diff options
| author | Daniel Silverstone <dsilvers@digital-scurf.org> | 2015-08-12 08:40:35 +0200 |
|---|---|---|
| committer | Daniel Silverstone <dsilvers@digital-scurf.org> | 2015-08-12 08:40:35 +0200 |
| commit | b4d26fd1606ad50aa136ba27efe87bbcdf396c81 (patch) | |
| tree | b3f1e82fc379ac6b4b4f9a4697bcb1d947e223ad /javascript/duktape/duktape.h | |
| parent | 4b07aead3fc2dcaef12ff352ac3149cbdf27ce0b (diff) | |
| download | netsurf-b4d26fd1606ad50aa136ba27efe87bbcdf396c81.tar.gz netsurf-b4d26fd1606ad50aa136ba27efe87bbcdf396c81.tar.bz2 | |
Take tip of the fix-cast-align-warnings branch from Sami to see if it helps
Diffstat (limited to 'javascript/duktape/duktape.h')
| -rw-r--r-- | javascript/duktape/duktape.h | 3227 |
1 files changed, 117 insertions, 3110 deletions
diff --git a/javascript/duktape/duktape.h b/javascript/duktape/duktape.h index 6baa7da30..8d4c31312 100644 --- a/javascript/duktape/duktape.h +++ b/javascript/duktape/duktape.h @@ -1,11 +1,11 @@ /* - * Duktape public API for Duktape 1.2.3. + * Duktape public API for Duktape 1.2.99. * See the API reference for documentation on call semantics. * The exposed API is inside the DUK_API_PUBLIC_H_INCLUDED * include guard. Other parts of the header are Duktape * internal and related to platform/compiler/feature detection. * - * Git commit 0605a18660dbae486c62a42a33fabd034c8623ff (v1.2.3). + * Git commit 2a41d0a38eef5edfe8691cf09427b6ee8a3ad5c9 (v1.2.0-310-g2a41d0a). * * See Duktape AUTHORS.rst and LICENSE.txt for copyright and * licensing information. @@ -38,7 +38,6 @@ * 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 */ @@ -68,6 +67,7 @@ * * Andreas \u00d6man <andreas@lonelycoder.com> * * L\u00e1szl\u00f3 Lang\u00f3 <llango.u-szeged@partner.samsung.com> * * Legimet <legimet.calc@gmail.com> + * * Karl Skomski <karl@skomski.com> * * Other contributions * =================== @@ -92,7 +92,7 @@ * * Josh Engebretson (https://github.com/JoshEngebretson) * * Remo Eichenberger (https://github.com/remoe) * * Mamod Mehyar (https://github.com/mamod) - * * David Demelier (https://github.com/hftmarkand) + * * David Demelier (https://github.com/markand) * * Tim Caswell (https://github.com/creationix) * * Mitchell Blank Jr (https://github.com/mitchblank) * * https://github.com/yushli @@ -102,6 +102,8 @@ * * 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 * * If you are accidentally missing from this list, send me an e-mail * (``sami.vaarala@iki.fi``) and I'll fix the omission. @@ -112,3002 +114,11 @@ #define DUK_SINGLE_FILE -/* - * Determine platform features, select feature selection defines - * (e.g. _XOPEN_SOURCE), include system headers, and define DUK_USE_XXX - * defines which are (only) checked in Duktape internal code for - * activated features. Duktape feature selection is based on automatic - * feature detection, user supplied DUK_OPT_xxx defines, and optionally - * a "duk_custom.h" user header (if DUK_OPT_HAVE_CUSTOM_H is defined). - * - * When compiling Duktape, DUK_COMPILING_DUKTAPE is set, and this file - * is included before any system headers are included. Feature selection - * defines (e.g. _XOPEN_SOURCE) are defined here before any system headers - * are included (which is a requirement for system headers to work correctly). - * This file is responsible for including all system headers and contains - * all platform dependent cruft in general. When compiling user code, - * DUK_COMPILING_DUKTAPE is not defined, and we must avoid e.g. defining - * unnecessary feature selection defines. - * - * The general order of handling: - * - Compiler feature detection (require no includes) - * - Intermediate platform detection (-> easier platform defines) - * - Platform detection, system includes, byte order detection, etc - * - ANSI C wrappers (e.g. DUK_MEMCMP), wrappers for constants, etc - * - DUK_USE_xxx defines are resolved based on input defines - * - Duktape Date provider settings - * - Final sanity checks - * - * DUK_F_XXX are internal feature detection macros which should not be - * used outside this header. - * - * Useful resources: - * - * http://sourceforge.net/p/predef/wiki/Home/ - * http://sourceforge.net/p/predef/wiki/Architectures/ - * http://stackoverflow.com/questions/5919996/how-to-detect-reliably-mac-os-x-ios-linux-windows-in-c-preprocessor - * http://en.wikipedia.org/wiki/C_data_types#Fixed-width_integer_types - * - * Preprocessor defines available in a particular GCC: - * - * gcc -dM -E - </dev/null # http://www.brain-dump.org/blog/entry/107 - */ - -#ifndef DUK_FEATURES_H_INCLUDED -#define DUK_FEATURES_H_INCLUDED - -/* - * Compiler features - */ - -#undef DUK_F_C99 -#if defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 199901L) -#define DUK_F_C99 -#endif - -#undef DUK_F_CPP -#if defined(__cplusplus) -#define DUK_F_CPP -#endif - -#undef DUK_F_CPP11 -#if defined(__cplusplus) && (__cplusplus >= 201103L) -#define DUK_F_CPP11 -#endif - -/* - * Provides the duk_rdtsc() inline function (if available), limited to - * GCC C99. - * - * See: http://www.mcs.anl.gov/~kazutomo/rdtsc.html - */ - -/* XXX: more accurate detection of what gcc versions work; more inline - * asm versions for other compilers. - */ -#if defined(__GNUC__) && defined(__i386__) && defined(DUK_F_C99) && \ - !defined(__cplusplus) /* unsigned long long not standard */ -static __inline__ unsigned long long duk_rdtsc(void) { - unsigned long long int x; - __asm__ volatile (".byte 0x0f, 0x31" : "=A" (x)); - return x; -} -#define DUK_RDTSC_AVAILABLE 1 -#elif defined(__GNUC__) && defined(__x86_64__) && defined(DUK_F_C99) && \ - !defined(__cplusplus) /* unsigned long long not standard */ -static __inline__ unsigned long long duk_rdtsc(void) { - unsigned hi, lo; - __asm__ __volatile__ ("rdtsc" : "=a"(lo), "=d"(hi)); - return ((unsigned long long) lo) | (((unsigned long long) hi) << 32); -} -#define DUK_RDTSC_AVAILABLE 1 -#else -/* not available */ -#undef DUK_RDTSC_AVAILABLE -#endif - -/* - * Intermediate platform, architecture, and compiler detection. These are - * hopelessly intertwined - e.g. architecture defines depend on compiler etc. - * - * Provide easier defines for platforms and compilers which are often tricky - * or verbose to detect. The intent is not to provide intermediate defines for - * all features; only if existing feature defines are inconvenient. - */ - -/* Intel x86 (32-bit) */ -#if 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__) -#define DUK_F_X86 -#endif - -/* AMD64 (64-bit) */ -#if defined(__amd64__) || defined(__amd64) || \ - defined(__x86_64__) || defined(__x86_64) || \ - defined(_M_X64) || defined(_M_AMD64) -#define DUK_F_X64 -#endif - -/* X32: 64-bit with 32-bit pointers (allows packed tvals). X32 support is - * not very mature yet. - * - * https://sites.google.com/site/x32abi/ - */ -#if defined(DUK_F_X64) && \ - (defined(_ILP32) || defined(__ILP32__)) -#define DUK_F_X32 -/* define only one of: DUK_F_X86, DUK_F_X32, or DUK_F_X64 */ -#undef DUK_F_X64 -#undef DUK_F_X86 -#endif - -/* ARM */ -#if defined(__arm__) || defined(__thumb__) || defined(_ARM) || defined(_M_ARM) -#define DUK_F_ARM -#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(__mips64) || defined(__mips64__) || \ - defined(__mips_n64) -#define DUK_F_MIPS64 -#else -#define DUK_F_MIPS32 -#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 - -/* 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 - -/* PowerPC */ -#if defined(__powerpc) || defined(__powerpc__) || defined(__PPC__) -#define DUK_F_PPC -#endif - -/* Linux */ -#if defined(__linux) || defined(__linux__) || defined(linux) -#define DUK_F_LINUX -#endif - -/* FreeBSD */ -#if defined(__FreeBSD__) || defined(__FreeBSD) -#define DUK_F_FREEBSD -#endif - -/* NetBSD */ -#if defined(__NetBSD__) || defined(__NetBSD) -#define DUK_F_NETBSD -#endif - -/* OpenBSD */ -#if defined(__OpenBSD__) || defined(__OpenBSD) -#define DUK_F_OPENBSD -#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 - -/* Generic Unix (includes Cygwin) */ -#if defined(__unix) || defined(__unix__) || defined(unix) || \ - defined(DUK_F_LINUX) || defined(DUK_F_BSD) -#define DUK_F_UNIX -#endif - -/* Cygwin */ -#if defined(__CYGWIN__) -#define DUK_F_CYGWIN -#endif - -/* Windows (32-bit or above) */ -#if defined(_WIN32) || defined(WIN32) || defined(_WIN64) || defined(WIN64) || \ - defined(__WIN32__) || defined(__TOS_WIN__) || defined(__WINDOWS__) -#define DUK_F_WINDOWS -#endif - -#if defined(__APPLE__) -#define DUK_F_APPLE -#endif - -/* Atari ST TOS. __TOS__ defined by PureC (which doesn't work as a target now - * because int is 16-bit, to be fixed). No platform define in VBCC apparently, - * so to use with VBCC, user must define '__TOS__' manually. - */ -#if defined(__TOS__) -#define DUK_F_TOS -#endif - -/* AmigaOS. Neither AMIGA nor __amigaos__ is defined on VBCC, so user must - * define 'AMIGA' manually. - */ -#if defined(AMIGA) || defined(__amigaos__) -#define DUK_F_AMIGAOS -#endif - -/* Flash player (e.g. Crossbridge) */ -#if defined(__FLASHPLAYER__) -#define DUK_F_FLASHPLAYER -#endif - -/* Emscripten (provided explicitly by user), improve if possible */ -#if defined(EMSCRIPTEN) -#define DUK_F_EMSCRIPTEN -#endif - -/* QNX */ -#if defined(__QNX__) -#define DUK_F_QNX -#endif - -/* TI-Nspire (using Ndless) */ -#if defined(_TINSPIRE) -#define DUK_F_TINSPIRE -#endif - -/* GCC and GCC version convenience define. */ -#if defined(__GNUC__) -#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 - -/* Clang */ -#if defined(__clang__) -#define DUK_F_CLANG -/* It seems clang also defines __GNUC__, so undo the GCC detection. */ -#if defined(DUK_F_GCC) -#undef DUK_F_GCC -#endif -#if defined(DUK_F_GCC_VERSION) -#undef DUK_F_GCC_VERSION -#endif -#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 */ - -/* MinGW */ -#if defined(__MINGW32__) || defined(__MINGW64__) -/* NOTE: Also GCC flags are detected (DUK_F_GCC etc). */ -#define DUK_F_MINGW -#endif - -/* BCC (Bruce's C compiler): this is a "torture target" for compilation */ -#if defined(__BCC__) || defined(__BCC_VERSION__) -#define DUK_F_BCC -#endif - -#if defined(__VBCC__) -#define DUK_F_VBCC -#endif - -#if (defined(DUK_F_C99) || defined(DUK_F_CPP11)) && \ - !defined(DUK_F_BCC) -/* ULL / LL preprocessor constants should be avoided because they're not - * always available. With suitable options, some compilers will support - * 64-bit integer types but won't support ULL / LL preprocessor constants. - * Assume C99/C++11 environments have these. However, BCC is nominally - * C99 but doesn't support these constants. - */ -#define DUK_F_ULL_CONSTS -#endif - -/* - * Platform detection, system includes, Date provider selection. - * - * Feature selection (e.g. _XOPEN_SOURCE) must happen before any system - * headers are included. This header should avoid providing any feature - * selection defines when compiling user code (only when compiling Duktape - * itself). If a feature selection option is required for user code to - * compile correctly (e.g. it is needed for type detection), it should - * probably be -checked- here, not defined here. - * - * Date provider selection seems a bit out-of-place here, but since - * the date headers and provider functions are heavily platform - * specific, there's little point in duplicating the platform if-else - * ladder. All platform specific Date provider functions are in - * duk_bi_date.c; here we provide appropriate #defines to enable them, - * and include all the necessary system headers so that duk_bi_date.c - * compiles. Date "providers" are: - * - * NOW = getting current time (required) - * TZO = getting local time offset (required) - * PRS = parse datetime (optional) - * FMT = format datetime (optional) - * - * There's a lot of duplication here, unfortunately, because many - * platforms have similar (but not identical) headers, Date providers, - * etc. The duplication could be removed by more complicated nested - * #ifdefs, but it would then be more difficult to make fixes which - * affect only a specific platform. - * - * XXX: add a way to provide custom functions to provide the critical - * primitives; this would be convenient when porting to unknown platforms - * (rather than muck with Duktape internals). - */ - -#if defined(DUK_COMPILING_DUKTAPE) && \ - (defined(DUK_F_LINUX) || defined(DUK_F_EMSCRIPTEN)) -/* A more recent Emscripten (2014-05) seems to lack "linux" environment - * defines, so check for Emscripten explicitly. - */ -#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 - -#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 - -#undef DUK_F_MSVC_CRT_SECURE -#if defined(DUK_F_WINDOWS) && defined(_MSC_VER) -/* http://msdn.microsoft.com/en-us/library/8ef0s5kh.aspx - * http://msdn.microsoft.com/en-us/library/wd3wzwts.aspx - * Seem to be available since VS2005. - */ -#if (_MSC_VER >= 1400) -/* VS2005+, secure CRT functions are preferred. Windows Store applications - * (and probably others) should use these. - */ -#define DUK_F_MSVC_CRT_SECURE -#endif -#if (_MSC_VER < 1700) -/* VS2012+ has stdint.h, < VS2012 does not (but it's available for download). */ -#define DUK_F_NO_STDINT_H -#endif -/* 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 -#endif /* DUK_F_WINDOWS && _MSC_VER */ - -#if defined(DUK_F_TOS) || defined(DUK_F_BCC) -#define DUK_F_NO_STDINT_H -#endif - -/* Workaround for older C++ compilers before including <inttypes.h>, - * 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(__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 <TargetConditionals.h> -#include <architecture/byte_order.h> -#include <limits.h> -#include <sys/param.h> -#include <sys/time.h> -#include <time.h> -#elif defined(DUK_F_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 <sys/types.h> -#include <sys/endian.h> -#include <limits.h> -#include <sys/param.h> -#include <sys/time.h> -#include <time.h> -#elif defined(DUK_F_BSD) -/* other 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 <sys/types.h> -#include <sys/endian.h> -#include <limits.h> -#include <sys/param.h> -#include <sys/time.h> -#include <time.h> -#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 <limits.h> -#include <time.h> -#elif defined(DUK_F_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 <limits.h> -#include <time.h> -#elif defined(DUK_F_PPC) -/* AmigaOS on PowerPC */ -#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 <limits.h> -#include <time.h> -#ifndef UINTPTR_MAX -#define UINTPTR_MAX UINT_MAX -#endif -#else -#error AmigaOS but not M68K/PPC, not supported now -#endif -#elif defined(DUK_F_WINDOWS) -/* 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. - */ -#include <windows.h> -#include <limits.h> -#elif defined(DUK_F_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 <endian.h> -#include <limits.h> -#include <sys/param.h> -#include <sys/time.h> -#include <time.h> -#elif defined(DUK_F_QNX) -#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 <sys/types.h> -#include <limits.h> -#include <sys/param.h> -#include <sys/time.h> -#include <time.h> -#elif defined(DUK_F_TINSPIRE) -#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 <sys/types.h> -#include <limits.h> -#include <sys/param.h> -#include <sys/time.h> -#include <time.h> -#elif defined(DUK_F_LINUX) -#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 <sys/types.h> -#if defined(DUK_F_BCC) -/* no endian.h */ -#else -#include <endian.h> -#endif /* DUK_F_BCC */ -#include <limits.h> -#include <sys/param.h> -#include <sys/time.h> -#include <time.h> -#elif defined(__posix) -/* 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 <sys/types.h> -#include <endian.h> -#include <limits.h> -#include <sys/param.h> -#include <sys/time.h> -#include <time.h> -#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 <sys/types.h> -#include <endian.h> -#include <limits.h> -#include <sys/param.h> -#include <sys/time.h> -#include <time.h> -#else -/* Other UNIX, hopefully others */ -#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 <sys/types.h> -#if defined(DUK_F_BCC) -/* no endian.h */ -#else -#include <endian.h> -#endif /* DUK_F_BCC */ -#include <limits.h> -#include <sys/param.h> -#include <sys/time.h> -#include <time.h> -#endif - -/* Shared includes */ -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <stdarg.h> /* varargs */ -#include <setjmp.h> -#include <stddef.h> /* e.g. ptrdiff_t */ -#if defined(DUK_F_NO_STDINT_H) -/* stdint.h not available */ -#else -/* Technically C99 (C++11) but found in many systems. Note the workaround - * above for some C++ compilers (__STDC_LIMIT_MACROS etc). - */ -#include <stdint.h> -#endif -#include <math.h> - -/* - * Detection for specific libc variants (like uclibc) and other libc specific - * features. Potentially depends on the #includes above. - */ - -#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 architecture. - * XXX: unsure about BCC correctness. - */ -#if defined(DUK_F_X86) || defined(DUK_F_X32) || \ - 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 <inttypes.h> - -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 - -#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 - -/* 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 double typedef. */ -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 - -/* Convenience define: 32-bit pointers. 32-bit platforms are an important - * footprint optimization target, and this define allows e.g. struct sizes - * to be organized for compactness. - */ - -#undef DUK_USE_32BIT_PTRS -#if defined(DUK_UINTPTR_MAX) && !defined(DUK_UINTPTR_MAX_COMPUTED) -#if DUK_UINTPTR_MAX <= 0xffffffffUL -#define DUK_USE_32BIT_PTRS -#endif -#endif - -/* - * Check whether we should use 64-bit integers - */ - -/* 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 - -/* - * Alignment requirement and support for unaligned accesses - * - * Assume unaligned accesses are not supported unless specifically allowed - * in the target platform. Some platforms may support unaligned accesses - * but alignment to 4 or 8 may still be desirable. - */ - -#undef DUK_USE_UNALIGNED_ACCESSES_POSSIBLE -#undef DUK_USE_ALIGN_4 -#undef DUK_USE_ALIGN_8 - -#if defined(DUK_F_EMSCRIPTEN) -/* Required on at least some targets, so use whenever Emscripten used, - * regardless of compilation target. - */ -#define DUK_USE_ALIGN_8 -#elif defined(DUK_F_ARM) -#define DUK_USE_ALIGN_4 -#elif defined(DUK_F_MIPS32) -/* 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. - */ -#define DUK_USE_ALIGN_4 -#elif defined(DUK_F_MIPS64) -/* Good default is a bit arbitrary because alignment requirements - * depend on target. See https://github.com/svaarala/duktape/issues/102. - */ -#define DUK_USE_ALIGN_8 -#elif defined(DUK_F_SUPERH) -/* Based on 'make checkalign' there are no alignment requirements on - * Linux SH4, but align by 4 is probably a good basic default. - */ -#define DUK_USE_ALIGN_4 -#elif defined(DUK_F_X86) || defined(DUK_F_X32) || defined(DUK_F_X64) || \ - defined(DUK_F_BCC) -/* XXX: This is technically not guaranteed because it's possible to configure - * an x86 to require aligned accesses with Alignment Check (AC) flag. - */ -#define DUK_USE_UNALIGNED_ACCESSES_POSSIBLE -#else -/* Unknown, use safe default */ -#define DUK_USE_ALIGN_8 -#endif - -/* User forced alignment to 4 or 8. */ -#if defined(DUK_OPT_FORCE_ALIGN) -#undef DUK_USE_UNALIGNED_ACCESSES_POSSIBLE -#undef DUK_USE_ALIGN_4 -#undef DUK_USE_ALIGN_8 -#if (DUK_OPT_FORCE_ALIGN == 4) -#define DUK_USE_ALIGN_4 -#elif (DUK_OPT_FORCE_ALIGN == 8) -#define DUK_USE_ALIGN_8 -#else -#error invalid DUK_OPT_FORCE_ALIGN value -#endif -#endif - -/* Compiler specific hackery needed to force struct size to match aligment, - * see e.g. duk_hbuffer.h. - * - * http://stackoverflow.com/questions/11130109/c-struct-size-alignment - * http://stackoverflow.com/questions/10951039/specifying-64-bit-alignment - */ -#if defined(DUK_F_MSVC) -#define DUK_USE_PACK_MSVC_PRAGMA -#elif defined(DUK_F_GCC) -#define DUK_USE_PACK_GCC_ATTR -#elif defined(DUK_F_CLANG) -#define DUK_USE_PACK_CLANG_ATTR -#else -#define DUK_USE_PACK_DUMMY_MEMBER -#endif - -#ifdef DUK_USE_UNALIGNED_ACCESSES_POSSIBLE -#define DUK_USE_HASHBYTES_UNALIGNED_U32_ACCESS -#else -#undef DUK_USE_HASHBYTES_UNALIGNED_U32_ACCESS -#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 defined(DUK_USE_UNALIGNED_ACCESSES_POSSIBLE) && \ - !defined(DUK_USE_ALIGN_4) && !defined(DUK_USE_ALIGN_8) -/* 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 - -/* - * 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". - */ - -#undef DUK_F_BYTEORDER -#undef DUK_USE_BYTEORDER_FORCED - -/* DUK_F_BYTEORDER is set as an intermediate value when detection - * succeeds, to one of: - * 1 = little endian - * 2 = mixed (arm hybrid) endian - * 3 = big 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) -#if (DUK_OPT_FORCE_BYTEORDER == 1) -#define DUK_F_BYTEORDER 1 -#elif (DUK_OPT_FORCE_BYTEORDER == 2) -#define DUK_F_BYTEORDER 2 -#elif (DUK_OPT_FORCE_BYTEORDER == 3) -#define DUK_F_BYTEORDER 3 -#else -#error invalid DUK_OPT_FORCE_BYTEORDER value -#endif -#define DUK_USE_BYTEORDER_FORCED -#endif /* DUK_OPT_FORCE_BYTEORDER */ - -/* 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. - */ -#if !defined(DUK_F_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__) -/* Integer 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_F_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_F_BYTEORDER 2 -#elif !defined(__FLOAT_WORD_ORDER) && !defined(_FLOAT_WORD_ORDER) -/* Float word order not known, assume not a hybrid. */ -#define DUK_F_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__) -/* Integer 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_F_BYTEORDER 3 -#elif !defined(__FLOAT_WORD_ORDER) && !defined(_FLOAT_WORD_ORDER) -/* Float word order not known, assume not a hybrid. */ -#define DUK_F_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_F_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__. - * http://gcc.gnu.org/onlinedocs/cpp/Common-Predefined-Macros.html - */ -#if !defined(DUK_F_BYTEORDER) && defined(__BYTE_ORDER__) -#if defined(__ORDER_LITTLE_ENDIAN__) && (__BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__) -/* Integer little endian */ -#if defined(__FLOAT_WORD_ORDER__) && defined(__ORDER_LITTLE_ENDIAN__) && \ - (__FLOAT_WORD_ORDER__ == __ORDER_LITTLE_ENDIAN__) -#define DUK_F_BYTEORDER 1 -#elif defined(__FLOAT_WORD_ORDER__) && defined(__ORDER_BIG_ENDIAN__) && \ - (__FLOAT_WORD_ORDER__ == __ORDER_BIG_ENDIAN__) -#define DUK_F_BYTEORDER 2 -#elif !defined(__FLOAT_WORD_ORDER__) -/* Float word order not known, assume not a hybrid. */ -#define DUK_F_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__) -/* Integer big endian */ -#if defined(__FLOAT_WORD_ORDER__) && defined(__ORDER_BIG_ENDIAN__) && \ - (__FLOAT_WORD_ORDER__ == __ORDER_BIG_ENDIAN__) -#define DUK_F_BYTEORDER 3 -#elif !defined(__FLOAT_WORD_ORDER__) -/* Float word order not known, assume not a hybrid. */ -#define DUK_F_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_F_BYTEORDER) && defined(__BYTE_ORDER__) */ - -/* Atari ST TOS */ -#if !defined(DUK_F_BYTEORDER) && defined(DUK_F_TOS) -#define DUK_F_BYTEORDER 3 -#endif - -/* AmigaOS on M68k */ -#if !defined(DUK_F_BYTEORDER) && defined(DUK_F_AMIGAOS) -#if defined(DUK_F_M68K) || defined(DUK_F_PPC) -#define DUK_F_BYTEORDER 3 -#endif -#endif - -/* On Windows, assume we're little endian. Even Itanium which has a - * configurable endianness runs little endian in Windows. - */ -#if !defined(DUK_F_BYTEORDER) && defined(DUK_F_WINDOWS) -/* XXX: verify that Windows on ARM is little endian for floating point - * values too. - */ -#define DUK_F_BYTEORDER 1 -#endif /* Windows */ - -/* Crossbridge should work with the standard byteorder #ifdefs. It doesn't - * provide _FLOAT_WORD_ORDER but the standard approach now covers that case - * too. This has been left here just in case. - */ -#if !defined(DUK_F_BYTEORDER) && defined(DUK_F_FLASHPLAYER) -#define DUK_F_BYTEORDER 1 -#endif - -/* 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 - </dev/null | grep -ni endian - * 67:#define __LITTLEENDIAN__ 1 - * $ /opt/qnx650/host/linux/x86/usr/bin/mips-unknown-nto-qnx6.5.0-gcc -dM -E - </dev/null | grep -ni endian - * 81:#define __BIGENDIAN__ 1 - * $ /opt/qnx650/host/linux/x86/usr/bin/arm-unknown-nto-qnx6.5.0-gcc -dM -E - </dev/null | grep -ni endian - * 70:#define __LITTLEENDIAN__ 1 - */ -#if !defined(DUK_F_BYTEORDER) && defined(DUK_F_QNX) -/* XXX: ARM hybrid? */ -#if defined(__LITTLEENDIAN__) -#define DUK_F_BYTEORDER 1 -#elif defined(__BIGENDIAN__) -#define DUK_F_BYTEORDER 3 -#endif -#endif - -/* Bruce's C Compiler (BCC), assume we're on x86. */ -#if !defined(DUK_F_BYTEORDER) && defined(DUK_F_BCC) -#define DUK_F_BYTEORDER 1 -#endif - -/* Check whether or not byte order detection worked based on the intermediate - * define, and define final values. If detection failed, #error out. - */ -#if defined(DUK_F_BYTEORDER) -#if (DUK_F_BYTEORDER == 1) -#define DUK_USE_INTEGER_LE -#define DUK_USE_DOUBLE_LE -#elif (DUK_F_BYTEORDER == 2) -#define DUK_USE_INTEGER_LE /* integer endianness is little on purpose */ -#define DUK_USE_DOUBLE_ME -#elif (DUK_F_BYTEORDER == 3) -#define DUK_USE_INTEGER_BE -#define DUK_USE_DOUBLE_BE -#else -#error unsupported: byte order detection failed (internal error, should not happen) -#endif /* byte order */ -#else -#error unsupported: byte order detection failed -#endif /* defined(DUK_F_BYTEORDER) */ - -/* - * 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. - */ - -#undef DUK_USE_PACKED_TVAL_POSSIBLE - -/* Strict C99 case: DUK_UINTPTR_MAX (= UINTPTR_MAX) should be very reliable */ -#if !defined(DUK_USE_PACKED_TVAL_POSSIBLE) && defined(DUK_F_HAVE_INTTYPES) && defined(DUK_UINTPTR_MAX) -#if (DUK_UINTPTR_MAX <= 0xffffffffUL) -#define DUK_USE_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_USE_PACKED_TVAL_POSSIBLE) && defined(DUK_UINTPTR_MAX) && !defined(DUK_UINTPTR_MAX_COMPUTED) -#if (DUK_UINTPTR_MAX <= 0xffffffffUL) -#define DUK_USE_PACKED_TVAL_POSSIBLE -#endif -#endif - -/* DUK_SIZE_MAX (= SIZE_MAX) is often reliable */ -#if !defined(DUK_USE_PACKED_TVAL_POSSIBLE) && defined(DUK_SIZE_MAX) && !defined(DUK_SIZE_MAX_COMPUTED) -#if DUK_SIZE_MAX <= 0xffffffffUL -#define DUK_USE_PACKED_TVAL_POSSIBLE -#endif -#endif - -/* M68K: packed always possible */ -#if !defined(DUK_USE_PACKED_TVAL_POSSIBLE) && defined(DUK_F_M68K) -#define DUK_USE_PACKED_TVAL_POSSIBLE -#endif - -/* PPC: packed always possible */ -#if !defined(DUK_USE_PACKED_TVAL_POSSIBLE) && defined(DUK_F_PPC) -#define DUK_USE_PACKED_TVAL_POSSIBLE -#endif - -/* With Emscripten, force unpacked duk_tval just to be safe, as it seems to - * break at least on Firefox (probably IEEE double arithmetic is not 100% - * supported, especially for NaNs). - */ -#if defined(DUK_USE_PACKED_TVAL_POSSIBLE) && defined(DUK_F_EMSCRIPTEN) -#undef DUK_USE_PACKED_TVAL_POSSIBLE -#endif - -/* Microsoft Visual Studio 2010 on x64 fails the above rules and tries to - * use a packed type. Force unpacked on x64 in general. - */ -#if defined(DUK_USE_PACKED_TVAL_POSSIBLE) && defined(DUK_F_X64) -#undef DUK_USE_PACKED_TVAL_POSSIBLE -#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 - -/* - * Detection of double constants and math related functions. Availability - * of constants and math functions is a significant porting concern. - * - * INFINITY/HUGE_VAL is problematic on GCC-3.3: it causes an overflow warning - * and there is no pragma in GCC-3.3 to disable it. Using __builtin_inf() - * avoids this problem for some reason. - */ - -#define DUK_DOUBLE_2TO32 4294967296.0 -#define DUK_DOUBLE_2TO31 2147483648.0 - -#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). - */ -extern double duk_computed_infinity; -#define DUK_USE_COMPUTED_INFINITY -#define DUK_DOUBLE_INFINITY duk_computed_infinity -#endif - -#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). - */ -extern double duk_computed_nan; -#define DUK_USE_COMPUTED_NAN -#define DUK_DOUBLE_NAN duk_computed_nan -#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_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). - */ -#define DUK_FABS fabs -#define DUK_FMIN fmin -#define DUK_FMAX fmax -#define DUK_FLOOR floor -#define DUK_CEIL ceil -#define DUK_FMOD fmod -#define DUK_POW pow -#define DUK_ACOS acos -#define DUK_ASIN asin -#define DUK_ATAN atan -#define DUK_ATAN2 atan2 -#define DUK_SIN sin -#define DUK_COS cos -#define DUK_TAN tan -#define DUK_EXP exp -#define DUK_LOG log -#define DUK_SQRT sqrt - -/* 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. See bugs/issue-2e9d9c2d761dabaf8136c0897b91a270d1a47147.yaml. - */ -#undef DUK_USE_PARANOID_DATE_COMPUTATION -#if !defined(DUK_F_C99) -#define DUK_USE_PARANOID_DATE_COMPUTATION -#endif - -/* - * ANSI C string/memory function wrapper defines to allow easier workarounds. - * Also convenience macros like DUK_MEMZERO which may be mapped to existing - * platform function to zero memory (like the deprecated bzero). - * - * For instance, some platforms don't support zero-size memcpy correctly, - * some arcane uclibc versions have a buggy memcpy (but working memmove) - * and so on. Such broken platforms can be dealt with here. - * - * NOTE: 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 this is a practical issue, wrappers are again needed. - */ - -typedef FILE duk_file; -#define DUK_STDIN stdin -#define DUK_STDOUT stdout -#define DUK_STDERR stderr - -/* Special naming to avoid conflict with e.g. DUK_FREE() in duk_heap.h - * (which is unfortunately named). - */ -#define DUK_ANSI_MALLOC malloc -#define DUK_ANSI_REALLOC realloc -#define DUK_ANSI_CALLOC calloc -#define DUK_ANSI_FREE free - -/* 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 - */ -#if defined(DUK_F_UCLIBC) -#define DUK_MEMCPY memmove -#else -#define DUK_MEMCPY memcpy -#endif - -#define DUK_MEMMOVE memmove -#define DUK_MEMCMP memcmp -#define DUK_MEMSET memset -#define DUK_STRLEN strlen -#define DUK_STRCMP strcmp -#define DUK_STRNCMP strncmp -#define DUK_PRINTF printf -#define DUK_FPRINTF fprintf -#define DUK_SPRINTF sprintf - -#if defined(DUK_F_MSVC) -/* _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 -#else -#define DUK_SNPRINTF snprintf -#endif - -#define DUK_VSPRINTF vsprintf - -#if defined(DUK_F_MSVC) -#if (_MSC_VER < 1600) -/* Older MSVC version are missing vsnprintf() but have _vsnprintf(). */ -#define DUK_VSNPRINTF _vsnprintf -#else -#define DUK_VSNPRINTF vsnprintf -#endif -#else -#define DUK_VSNPRINTF vsnprintf -#endif /* DUK_F_MSVC */ - -#define DUK_SSCANF sscanf -#define DUK_VSSCANF vsscanf -#define DUK_FOPEN fopen -#define DUK_FCLOSE fclose -#define DUK_FREAD fread -#define DUK_FWRITE fwrite -#define DUK_FSEEK fseek -#define DUK_FTELL ftell -#define DUK_FFLUSH fflush -#define DUK_FPUTC fputc - -#define DUK_MEMZERO(p,n) \ - DUK_MEMSET((p), 0, (n)) - -/* - * Avoiding platform function pointers. - * - * On some platforms built-in functions may be implemented as macros or - * inline functions, so they can't be necessarily addressed by function - * pointers. This is certainly the case with some platform "polyfills" - * which provide missing C99/C++11 functions through macros, and may be - * the case with VS2013 (see GH-17). - */ - -/* This is now the default: the cost in footprint is negligible. */ -#define DUK_USE_AVOID_PLATFORM_FUNCPTRS - -/* - * Vararg macro wrappers. We need va_copy() which is defined in C99 / C++11, - * so an awkward replacement is needed for pre-C99 / pre-C++11 environments. - * This will quite likely need portability hacks for some non-C99 environments. - */ - -#if defined(DUK_F_C99) || defined(DUK_F_CPP11) -/* C99 / C++11 and above: rely on va_copy() which is required. - * Omit parenthesis on macro right side on purpose to minimize differences - * to direct use. - */ -#define DUK_VA_COPY(dest,src) va_copy(dest,src) -#elif defined(DUK_F_GCC) || defined(DUK_F_CLANG) -/* GCC: assume we have __va_copy() in non-C99 mode, which should be correct - * for even quite old GCC versions. Clang matches GCC behavior. - */ -#define DUK_VA_COPY(dest,src) __va_copy(dest,src) -#else -/* Pre-C99: va_list type is implementation dependent. This replacement - * assumes it is a plain value so that a simple assignment will work. - * This is not the case on all platforms (it may be a single-array element, - * for instance). - */ -#define DUK_VA_COPY(dest,src) do { (dest) = (src); } while (0) -#endif - -/* - * Miscellaneous ANSI C or other platform wrappers. - */ - -#define DUK_ABORT abort -#define DUK_EXIT exit - -/* - * Macro hackery to convert e.g. __LINE__ to a string without formatting, - * see: http://stackoverflow.com/questions/240353/convert-a-preprocessor-token-to-a-string - */ - -#define DUK_F_STRINGIFY_HELPER(x) #x -#define DUK_MACRO_STRINGIFY(x) DUK_F_STRINGIFY_HELPER(x) - -/* - * Cause segfault macro. - * - * This is optionally used by panic handling to cause the program to segfault - * (instead of e.g. abort()) on panic. Valgrind will then indicate the C - * call stack leading to the panic. - */ - -#define DUK_CAUSE_SEGFAULT() do { \ - *((volatile duk_uint32_t *) NULL) = (duk_uint32_t) 0xdeadbeefUL; \ - } while (0) - -/* - * Macro for suppressing warnings for potentially unreferenced variables. - * The variables can be actually unreferenced or unreferenced in some - * specific cases only; for instance, if a variable is only debug printed, - * it is unreferenced when debug printing is disabled. - * - * (Introduced here because it's potentially compiler specific.) - */ - -#define DUK_UNREF(x) do { \ - (void) (x); \ - } while (0) - -/* - * DUK_NORETURN: macro for declaring a 'noreturn' function. - * Unfortunately the noreturn declaration may appear in various - * places of a function declaration, so the solution is to wrap - * the entire declaration inside the macro. Compiler support - * for using a noreturn declaration on function pointers varies; - * this macro must only be used for actual function declarations. - * - * http://gcc.gnu.org/onlinedocs/gcc-4.3.2//gcc/Function-Attributes.html - * http://clang.llvm.org/docs/LanguageExtensions.html - */ - -#if defined(DUK_F_GCC_VERSION) && (DUK_F_GCC_VERSION >= 20500L) -/* since gcc-2.5 */ -#define DUK_NORETURN(decl) decl __attribute__((noreturn)) -#elif defined(__clang__) -/* syntax same as gcc */ -#define DUK_NORETURN(decl) decl __attribute__((noreturn)) -#elif defined(DUK_F_MSVC) -/* http://msdn.microsoft.com/en-us/library/aa235362(VS.60).aspx */ -#define DUK_NORETURN(decl) __declspec(noreturn) decl -#else -/* Don't know how to declare a noreturn function, so don't do it; this - * may cause some spurious compilation warnings (e.g. "variable used - * uninitialized"). - */ -#define DUK_NORETURN(decl) decl -#endif - -/* - * Macro for stating that a certain line cannot be reached. - * - * http://gcc.gnu.org/onlinedocs/gcc-4.5.0/gcc/Other-Builtins.html#Other-Builtins - * http://clang.llvm.org/docs/LanguageExtensions.html - */ - -#if defined(DUK_F_GCC_VERSION) && (DUK_F_GCC_VERSION >= 40500L) -/* since gcc-4.5 */ -#define DUK_UNREACHABLE() do { __builtin_unreachable(); } while(0) -#elif defined(__clang__) && defined(__has_builtin) -#if __has_builtin(__builtin_unreachable) -/* same as gcc */ -#define DUK_UNREACHABLE() do { __builtin_unreachable(); } while(0) -#endif -#else -/* unknown */ -#endif - -#if !defined(DUK_UNREACHABLE) -/* Don't know how to declare unreachable point, so don't do it; this - * may cause some spurious compilation warnings (e.g. "variable used - * uninitialized"). - */ -#define DUK_UNREACHABLE() /* unreachable */ -#endif - -/* - * Likely and unlikely branches. Using these is not at all a clear cut case, - * so the selection is a two-step process: (1) DUK_USE_BRANCH_HINTS is set - * if the architecture, compiler etc make it useful to use the hints, and (2) - * a separate check determines how to do them. - * - * These macros expect the argument to be a relational expression with an - * integer value. If used with pointers, you should use an explicit check - * like: - * - * if (DUK_LIKELY(ptr != NULL)) { ... } - * - * instead of: - * - * if (DUK_LIKELY(ptr)) { ... } - * - * http://gcc.gnu.org/onlinedocs/gcc/Other-Builtins.html (__builtin_expect) - */ - -/* pretty much a placeholder now */ -#if defined(DUK_F_GCC) -#define DUK_USE_BRANCH_HINTS -#elif defined(DUK_F_CLANG) -#define DUK_USE_BRANCH_HINTS -#else -#undef DUK_USE_BRANCH_HINTS -#endif - -#if defined(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) -#elif defined(DUK_F_CLANG) -#define DUK_LIKELY(x) __builtin_expect((x), 1) -#define DUK_UNLIKELY(x) __builtin_expect((x), 0) -#endif -#endif /* DUK_USE_BRANCH_HINTS */ - -#if !defined(DUK_LIKELY) -#define DUK_LIKELY(x) (x) -#endif -#if !defined(DUK_UNLIKELY) -#define DUK_UNLIKELY(x) (x) -#endif - -/* - * Function inlining control - * - * DUK_NOINLINE: avoid inlining a function. - * DUK_INLINE: suggest inlining a function. - * DUK_ALWAYS_INLINE: force inlining for critical functions. - */ - -#if defined(DUK_F_CLANG) -#define DUK_NOINLINE __attribute__((noinline)) -#define DUK_INLINE inline -#define DUK_ALWAYS_INLINE inline __attribute__((always_inline)) -#elif defined(DUK_F_GCC) && defined(DUK_F_GCC_VERSION) -#if (DUK_F_GCC_VERSION >= 30101) -#define DUK_NOINLINE __attribute__((noinline)) -#define DUK_INLINE inline -#define DUK_ALWAYS_INLINE inline __attribute__((always_inline)) -#endif -#endif - -#if !defined(DUK_NOINLINE) -#define DUK_NOINLINE /*nop*/ -#define DUK_INLINE /*nop*/ -#define DUK_ALWAYS_INLINE /*nop*/ -#endif - -/* - * Symbol visibility macros - * - * To avoid C++ declaration issues (see GH-63): - * - * - Don't use DUK_LOCAL_DECL for local -data symbols- so that you don't - * end up with both a "static" declaration and a definition. - * - * - Wrap any DUK_INTERNAL_DECL with a '#if !defined(DUK_SINGLE_FILE)' - * so that the internal declarations (which would map to "static" in - * a single file distribution) get dropped. - */ - -/* XXX: user override for these? user override for just using the default visibility macros? */ -/* XXX: separate macros for function and data may be necessary at some point. */ - -#if defined(DUK_F_GCC_VERSION) -#if (DUK_F_GCC_VERSION >= 40000) && !(defined(DUK_F_MINGW) || defined(DUK_F_CYGWIN)) -/* Might work on earlier versions too but limit to GCC 4+. - * MinGW should use Windows specific __declspec or no visibility attributes at all, - * otherwise: "warning: visibility attribute not supported in this configuration; ignored". - * Same applies to Cygwin GCC. - */ -#define DUK_F_GCC_SYMBOL_VISIBILITY -#endif -#endif -#if defined(DUK_F_CLANG) && !defined(DUK_F_GCC_SYMBOL_VISIBILITY) -#define DUK_F_GCC_SYMBOL_VISIBILITY -#endif -#if defined(DUK_OPT_DLL_BUILD) && defined(_WIN32) && (defined(_MSC_VER) || defined(__GNUC__)) -/* __declspec(dllexport) and __declspec(dllimport) only for Windows DLL build. - * MSVC: any minimum version? - * MinGW: no minimum version, even gcc-2.95.3 supported dllimport/dllexport. -*/ -#define DUK_F_MSVC_DLL_SYMBOL_VISIBILITY -#endif - -#if defined(DUK_F_GCC_SYMBOL_VISIBILITY) -/* GCC 4+ visibility attributes. */ -#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 -#elif defined(DUK_F_MSVC_DLL_SYMBOL_VISIBILITY) -/* 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 -#else -/* Default visibility. */ -#define DUK_EXTERNAL_DECL extern -#define DUK_EXTERNAL /*empty*/ -#if defined(DUK_SINGLE_FILE) -#define DUK_INTERNAL_DECL static -#define DUK_INTERNAL static -#else /* DUK_SINGLE_FILE */ -#define DUK_INTERNAL_DECL extern -#define DUK_INTERNAL /*empty*/ -#endif -#endif - -/* For now, these are shared. */ -#define DUK_LOCAL_DECL static -#define DUK_LOCAL static - -/* - * __FILE__, __LINE__, __func__ are wrapped. Especially __func__ is a - * problem because it is not available even in some compilers which try - * to be C99 compatible (e.g. VBCC with -c99 option). - */ - -#define DUK_FILE_MACRO __FILE__ - -#define DUK_LINE_MACRO __LINE__ - -#if !defined(DUK_F_VBCC) && !defined(DUK_F_MSVC) -#define DUK_FUNC_MACRO __func__ -#else -#define DUK_FUNC_MACRO "unknown" -#endif - -/* - * Byteswap macros - * - * These are here so that inline assembly or other platform functions can be - * used if available. - */ - -#define DUK_BSWAP32(x) \ - ((((duk_uint32_t) (x)) >> 24) | \ - ((((duk_uint32_t) (x)) >> 8) & 0xff00UL) | \ - ((((duk_uint32_t) (x)) << 8) & 0xff0000UL) | \ - (((duk_uint32_t) (x)) << 24)) - -#define DUK_BSWAP16(x) \ - ((duk_uint16_t) (x) >> 8) | \ - ((duk_uint16_t) (x) << 8) - -/* - * Architecture string, human readable value exposed in Duktape.env - */ - -#if defined(DUK_F_X86) -#define DUK_USE_ARCH_STRING "x86" -#elif defined(DUK_F_X32) -#define DUK_USE_ARCH_STRING "x32" -#elif defined(DUK_F_X64) -#define DUK_USE_ARCH_STRING "x64" -#elif defined(DUK_F_ARM) -#define DUK_USE_ARCH_STRING "arm" -#elif defined(DUK_F_MIPS32) -#define DUK_USE_ARCH_STRING "mips32" -#elif defined(DUK_F_MIPS64) -#define DUK_USE_ARCH_STRING "mips64" -#elif defined(DUK_F_SUPERH) -#define DUK_USE_ARCH_STRING "sh" -#elif defined(DUK_F_M68K) -#define DUK_USE_ARCH_STRING "m68k" -#elif defined(DUK_F_PPC) -#define DUK_USE_ARCH_STRING "ppc" -#elif defined(DUK_F_FLASHPLAYER) -#define DUK_USE_ARCH_STRING "flashplayer" -#elif defined(DUK_F_EMSCRIPTEN) -#define DUK_USE_ARCH_STRING "emscripten" -#else -#define DUK_USE_ARCH_STRING "unknown" -#endif - -/* - * OS string, human readable value exposed in Duktape.env - */ - -#if defined(DUK_F_LINUX) -#define DUK_USE_OS_STRING "linux" -#elif defined(__APPLE__) -/* 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 "ios" -#else -#define DUK_USE_OS_STRING "ios-unknown" -#endif -#elif defined(DUK_F_FREEBSD) -#define DUK_USE_OS_STRING "freebsd" -#elif defined(DUK_F_OPENBSD) -#define DUK_USE_OS_STRING "openbsd" -#elif defined(DUK_F_NETBSD) -#define DUK_USE_OS_STRING "netbsd" -#elif defined(DUK_F_BSD) -#define DUK_USE_OS_STRING "bsd" -#elif defined(DUK_F_UNIX) -#define DUK_USE_OS_STRING "unix" -#elif defined(DUK_F_WINDOWS) -#define DUK_USE_OS_STRING "windows" -#elif defined(DUK_F_TOS) -#define DUK_USE_OS_STRING "tos" -#elif defined(DUK_F_AMIGAOS) -#define DUK_USE_OS_STRING "amigaos" -#elif defined(DUK_F_QNX) -#define DUK_USE_OS_STRING "qnx" -#elif defined(DUK_F_TINSPIRE) -#define DUK_USE_OS_STRING "tinspire" -#else -#define DUK_USE_OS_STRING "unknown" -#endif - -/* - * Compiler string, human readable value exposed in Duktape.env - */ - -#if defined(DUK_F_MINGW) -#define DUK_USE_COMPILER_STRING "mingw" -#elif defined(DUK_F_GCC) -#if defined(DUK_F_CPP) -#define DUK_USE_COMPILER_STRING "g++" -#else -#define DUK_USE_COMPILER_STRING "gcc" -#endif -#elif defined(DUK_F_CLANG) -#define DUK_USE_COMPILER_STRING "clang" -#elif defined(DUK_F_MSVC) -#define DUK_USE_COMPILER_STRING "msvc" -#elif defined(DUK_F_VBCC) -#define DUK_USE_COMPILER_STRING "vbcc" -#else -#define DUK_USE_COMPILER_STRING "unknown" -#endif - -/* - * Long control transfer, setjmp/longjmp or alternatives - * - * Signal mask is not saved (when that can be communicated to the platform) - */ - -/* dummy non-zero value to be used as an argument for longjmp(), see man longjmp */ -#define DUK_LONGJMP_DUMMY_VALUE 1 - -#if defined(DUK_OPT_SETJMP) -#define DUK_USE_SETJMP -#elif defined(DUK_OPT_UNDERSCORE_SETJMP) -#define DUK_USE_UNDERSCORE_SETJMP -#elif defined(DUK_OPT_SIGSETJMP) -#define DUK_USE_SIGSETJMP -#elif defined(__APPLE__) -/* Use _setjmp() on Apple by default, see GH-55. */ -#define DUK_USE_UNDERSCORE_SETJMP -#else -/* The most portable default is setjmp(). */ -#define DUK_USE_SETJMP -#endif - -#if defined(DUK_USE_UNDERSCORE_SETJMP) -#define DUK_SETJMP(jb) _setjmp((jb)) -#define DUK_LONGJMP(jb) _longjmp((jb), DUK_LONGJMP_DUMMY_VALUE) -#elif defined(DUK_USE_SIGSETJMP) -#define DUK_SETJMP(jb) sigsetjmp((jb), 0 /*savesigs*/) -#define DUK_LONGJMP(jb) siglongjmp((jb), DUK_LONGJMP_DUMMY_VALUE) -#elif defined(DUK_USE_SETJMP) -#define DUK_SETJMP(jb) setjmp((jb)) -#define DUK_LONGJMP(jb) longjmp((jb), DUK_LONGJMP_DUMMY_VALUE) -#else -#error internal error -#endif - -/* - * Target info string - */ - -#if defined(DUK_OPT_TARGET_INFO) -#define DUK_USE_TARGET_INFO DUK_OPT_TARGET_INFO -#else -#define DUK_USE_TARGET_INFO "unknown" -#endif - -/* - * Speed/size and other performance options - */ - -/* Use fast ("inline") refcount operations instead of calling out to helpers - * by default. The difference in binary size is small (~1kB on x64). - */ -#define DUK_USE_FAST_REFCOUNT_DEFAULT - -/* Assert for valstack space but don't check for it in non-assert build. - * Valstack overruns (writing beyond checked space) is memory unsafe and - * potentially a segfault. Produces a smaller and faster binary. - * (In practice the speed difference is small with -O3 so default to - * safer behavior for now.) - */ -#undef DUK_USE_VALSTACK_UNSAFE - -/* Catch-all flag which can be used to choose between variant algorithms - * where a speed-size tradeoff exists (e.g. lookup tables). When it really - * matters, specific use flags may be appropriate. - */ -#define DUK_USE_PREFER_SIZE - -/* - * Tagged type representation (duk_tval) - */ - -#undef DUK_USE_PACKED_TVAL - -#if defined(DUK_USE_PACKED_TVAL_POSSIBLE) && !defined(DUK_OPT_NO_PACKED_TVAL) -#define DUK_USE_PACKED_TVAL -#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 - -/* - * Memory management options - */ - -#define DUK_USE_REFERENCE_COUNTING -#define DUK_USE_DOUBLE_LINKED_HEAP -#define DUK_USE_MARK_AND_SWEEP -#define DUK_USE_MS_STRINGTABLE_RESIZE - -#if defined(DUK_OPT_NO_REFERENCE_COUNTING) -#undef DUK_USE_REFERENCE_COUNTING -#undef DUK_USE_DOUBLE_LINKED_HEAP -/* XXX: undef DUK_USE_MS_STRINGTABLE_RESIZE as it is more expensive - * with more frequent mark-and-sweeps? - */ -#endif - -#if defined(DUK_OPT_NO_MARK_AND_SWEEP) -#undef DUK_USE_MARK_AND_SWEEP -#endif - -#if defined(DUK_USE_MARK_AND_SWEEP) -#define DUK_USE_VOLUNTARY_GC -#if defined(DUK_OPT_NO_VOLUNTARY_GC) -#undef DUK_USE_VOLUNTARY_GC -#endif -#endif - -#if !defined(DUK_USE_MARK_AND_SWEEP) && !defined(DUK_USE_REFERENCE_COUNTING) -#error must have either mark-and-sweep or reference counting enabled -#endif - -#if defined(DUK_OPT_NO_MS_STRINGTABLE_RESIZE) -#undef DUK_USE_MS_STRINGTABLE_RESIZE -#endif - -#undef DUK_USE_GC_TORTURE -#if defined(DUK_OPT_GC_TORTURE) -#define DUK_USE_GC_TORTURE -#endif - -/* - * String table options +/* External duk_config.h provides platform/compiler/OS dependent + * typedefs and macros, and DUK_USE_xxx config options so that + * the rest of Duktape doesn't need to do any feature detection. */ - -#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 -#define DUK_USE_STRTAB_CHAIN_SIZE DUK_OPT_STRTAB_CHAIN_SIZE -#else -/* Default algorithm: open addressing (probing) */ -#define DUK_USE_STRTAB_PROBE -#endif - -/* - * Error handling options - */ - -#define DUK_USE_AUGMENT_ERROR_CREATE -#define DUK_USE_AUGMENT_ERROR_THROW -#define DUK_USE_TRACEBACKS -#define DUK_USE_ERRCREATE -#define DUK_USE_ERRTHROW - -#define DUK_USE_VERBOSE_ERRORS - -#if defined(DUK_OPT_NO_AUGMENT_ERRORS) -#undef DUK_USE_AUGMENT_ERROR_CREATE -#undef DUK_USE_AUGMENT_ERROR_THROW -#undef DUK_USE_TRACEBACKS -#undef DUK_USE_ERRCREATE -#undef DUK_USE_ERRTHROW -#elif defined(DUK_OPT_NO_TRACEBACKS) -#undef DUK_USE_TRACEBACKS -#endif - -#if defined(DUK_OPT_NO_VERBOSE_ERRORS) -#undef DUK_USE_VERBOSE_ERRORS -#endif - -#if defined(DUK_USE_TRACEBACKS) -#if defined(DUK_OPT_TRACEBACK_DEPTH) -#define DUK_USE_TRACEBACK_DEPTH DUK_OPT_TRACEBACK_DEPTH -#else -#define DUK_USE_TRACEBACK_DEPTH 10 -#endif -#endif - -/* Include messages in executor internal errors. */ -#define DUK_USE_VERBOSE_EXECUTOR_ERRORS - -/* - * Execution and debugger options - */ - -#undef DUK_USE_INTERRUPT_COUNTER -#if defined(DUK_OPT_INTERRUPT_COUNTER) -#define DUK_USE_INTERRUPT_COUNTER -#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_DEBUGGER_SUPPORT -#if defined(DUK_OPT_DEBUGGER_SUPPORT) -#define DUK_USE_DEBUGGER_SUPPORT -#endif - -#undef DUK_USE_DEBUGGER_FWD_PRINTALERT -#if defined(DUK_OPT_DEBUGGER_SUPPORT) && defined(DUK_OPT_DEBUGGER_FWD_PRINTALERT) -#define DUK_USE_DEBUGGER_FWD_PRINTALERT -#endif - -#undef DUK_USE_DEBUGGER_FWD_LOGGING -#if defined(DUK_OPT_DEBUGGER_SUPPORT) && defined(DUK_OPT_DEBUGGER_FWD_LOGGING) -#define DUK_USE_DEBUGGER_FWD_LOGGING -#endif - -/* DumpHeap is optional because it's not always needed and has a relatively - * large footprint. - */ -#undef DUK_USE_DEBUGGER_DUMPHEAP -#if defined(DUK_OPT_DEBUGGER_DUMPHEAP) -#define DUK_USE_DEBUGGER_DUMPHEAP -#endif - -/* Debugger transport read/write torture. */ -#undef DUK_USE_DEBUGGER_TRANSPORT_TORTURE -#if defined(DUK_OPT_DEBUGGER_TRANSPORT_TORTURE) -#define DUK_USE_DEBUGGER_TRANSPORT_TORTURE -#endif - -/* For opcodes with indirect indices, check final index against stack size. - * This should not be necessary because the compiler is trusted, and we don't - * bound check non-indirect indices either. - */ -#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 - -/* - * Debug printing and assertion options - */ - -#undef DUK_USE_DEBUG -#undef DUK_USE_DPRINT -#undef DUK_USE_DDPRINT -#undef DUK_USE_DDDPRINT -#undef DUK_USE_DPRINT_RDTSC -#undef DUK_USE_ASSERTIONS - -/* Global debug enable. Compile must be clean on C99 regardless of whether or - * not debugging is enabled. On non-C99 platforms compile should be clean with - * debugging disabled but may produce warnings with debugging enabled (related - * to debug macro hackery and such). - */ -#if defined(DUK_OPT_DEBUG) -#define DUK_USE_DEBUG -#endif - -#if defined(DUK_OPT_DEBUG) && defined(DUK_OPT_DPRINT) -#define DUK_USE_DPRINT -#endif -#if defined(DUK_OPT_DEBUG) && defined(DUK_OPT_DDPRINT) -#define DUK_USE_DDPRINT -#endif -#if defined(DUK_OPT_DEBUG) && defined(DUK_OPT_DDDPRINT) -#define DUK_USE_DDDPRINT -#endif - -#undef DUK_USE_DPRINT_COLORS -#if defined(DUK_OPT_DPRINT_COLORS) -#define DUK_USE_DPRINT_COLORS -#endif - -#if defined(DUK_RDTSC_AVAILABLE) && defined(DUK_OPT_DPRINT_RDTSC) -#define DUK_USE_DPRINT_RDTSC -#else -#undef DUK_USE_DPRINT_RDTSC -#endif - -#if defined(DUK_OPT_ASSERTIONS) -#define DUK_USE_ASSERTIONS -#endif - -/* The static buffer for debug printing is quite large by default, so there - * is an option to shrink it manually for constrained builds. - */ -#if defined(DUK_OPT_DEBUG_BUFSIZE) -#define DUK_USE_DEBUG_BUFSIZE DUK_OPT_DEBUG_BUFSIZE -#else -#define DUK_USE_DEBUG_BUFSIZE 65536L -#endif - -/* - * Ecmascript features / compliance options - */ - -#if defined(DUK_F_BCC) -/* Math built-in is stubbed out on BCC to allow compiler torture testing. */ -#else -#define DUK_USE_MATH_BUILTIN -#endif - -#define DUK_USE_STRICT_DECL -#if defined(DUK_OPT_NO_STRICT_DECL) -#undef DUK_USE_STRICT_DECL -#endif - -#define DUK_USE_REGEXP_SUPPORT -#if defined(DUK_OPT_NO_REGEXP_SUPPORT) -#undef DUK_USE_REGEXP_SUPPORT -#endif - -#undef DUK_USE_STRICT_UTF8_SOURCE -#if defined(DUK_OPT_STRICT_UTF8_SOURCE) -#define DUK_USE_STRICT_UTF8_SOURCE -#endif - -#define DUK_USE_OCTAL_SUPPORT -#if defined(DUK_OPT_NO_OCTAL_SUPPORT) -#undef DUK_USE_OCTAL_SUPPORT -#endif - -#define DUK_USE_SOURCE_NONBMP -#if defined(DUK_OPT_NO_SOURCE_NONBMP) -#undef DUK_USE_SOURCE_NONBMP -#endif - -#define DUK_USE_BROWSER_LIKE -#if defined(DUK_OPT_NO_BROWSER_LIKE) -#undef DUK_USE_BROWSER_LIKE -#endif - -/* E5/E5.1 Section B features. */ -#define DUK_USE_SECTION_B -#if defined(DUK_OPT_NO_SECTION_B) -#undef DUK_USE_SECTION_B -#endif - -/* Non-standard regexp parsing features. */ -#define DUK_USE_NONSTD_REGEXP_DOLLAR_ESCAPE - -/* Treat function statements (function declarations outside top level of - * Program or FunctionBody) same as normal function declarations. This is - * also V8 behavior. See test-dev-func-decl-outside-top.js. - */ -#define DUK_USE_NONSTD_FUNC_STMT -#if defined(DUK_OPT_NO_NONSTD_FUNC_STMT) -#undef DUK_USE_NONSTD_FUNC_STMT -#endif - -/* Array.prototype.splice() non-standard but real world compatible behavior - * when deleteCount is omitted. - */ -#define DUK_USE_NONSTD_ARRAY_SPLICE_DELCOUNT -#if defined(DUK_OPT_NO_NONSTD_ARRAY_SPLICE_DELCOUNT) -#undef DUK_USE_NONSTD_ARRAY_SPLICE_DELCOUNT -#endif - -/* Array.prototype.concat() non-standard but real world compatible behavior - * for non-existent trailing elements. - */ -#define DUK_USE_NONSTD_ARRAY_CONCAT_TRAILER -#if defined(DUK_OPT_NO_NONSTD_ARRAY_CONCAT_TRAILER) -#undef DUK_USE_NONSTD_ARRAY_CONCAT_TRAILER -#endif - -/* Array.prototype.map() non-standard but real world compatible behavior - * for non-existent trailing elements. - */ -#define DUK_USE_NONSTD_ARRAY_MAP_TRAILER -#if defined(DUK_OPT_NO_NONSTD_ARRAY_MAP_TRAILER) -#undef DUK_USE_NONSTD_ARRAY_MAP_TRAILER -#endif - -/* Non-standard 'caller' property for function instances, see - * test-bi-function-nonstd-caller-prop.js. - */ -#undef DUK_USE_NONSTD_FUNC_CALLER_PROPERTY -#if defined(DUK_OPT_NONSTD_FUNC_CALLER_PROPERTY) -#define DUK_USE_NONSTD_FUNC_CALLER_PROPERTY -#endif - -/* Non-standard Object.prototype.__proto__ (ES6 draft), see - * test-bi-object-proto-__proto__.js. - */ -#define DUK_USE_ES6_OBJECT_PROTO_PROPERTY -#if defined(DUK_OPT_NO_ES6_OBJECT_PROTO_PROPERTY) -#undef DUK_USE_ES6_OBJECT_PROTO_PROPERTY -#endif - -/* Non-standard Object.setPrototypeOf (ES6 draft), see - * test-bi-object-setprototypeof.js. - */ -#define DUK_USE_ES6_OBJECT_SETPROTOTYPEOF -#if defined(DUK_OPT_NO_ES6_OBJECT_SETPROTOTYPEOF) -#undef DUK_USE_ES6_OBJECT_SETPROTOTYPEOF -#endif - -/* ES6 Proxy object (subset for now). */ -#define DUK_USE_ES6_PROXY -#if defined(DUK_OPT_NO_ES6_PROXY) -#undef DUK_USE_ES6_PROXY -#endif - -/* Record pc-to-line information. */ -#define DUK_USE_PC2LINE -#if defined(DUK_OPT_NO_PC2LINE) -#undef DUK_USE_PC2LINE -#endif - -/* Non-standard function 'source' property. */ -#undef DUK_USE_NONSTD_FUNC_SOURCE_PROPERTY -#if defined(DUK_OPT_NONSTD_FUNC_SOURCE_PROPERTY) -#define DUK_USE_NONSTD_FUNC_SOURCE_PROPERTY -#endif - -/* CommonJS modules */ -#define DUK_USE_COMMONJS_MODULES -#if defined(DUK_OPT_NO_COMMONJS_MODULES) -#undef DUK_USE_COMMONJS_MODULES -#endif - -/* Additional key argument to setter/getter calls when triggered by property - * accesses. - */ - -#define DUK_USE_NONSTD_GETTER_KEY_ARGUMENT -#define DUK_USE_NONSTD_SETTER_KEY_ARGUMENT -#if defined(DUK_OPT_NO_NONSTD_ACCESSOR_KEY_ARGUMENT) -#undef DUK_USE_NONSTD_GETTER_KEY_ARGUMENT -#undef DUK_USE_NONSTD_SETTER_KEY_ARGUMENT -#endif - -/* JSON escaping of U+2028 and U+2029. - */ - -#define DUK_USE_NONSTD_JSON_ESC_U2028_U2029 -#if defined(DUK_OPT_NO_NONSTD_JSON_ESC_U2028_U2029) -#undef DUK_USE_NONSTD_JSON_ESC_U2028_U2029 -#endif - -/* Allow 32-bit codepoints in String.fromCharCode. */ -#define DUK_USE_NONSTD_STRING_FROMCHARCODE_32BIT -#if defined(DUK_OPT_NO_NONSTD_STRING_FROMCHARCODE_32BIT) -#undef DUK_USE_NONSTD_STRING_FROMCHARCODE_32BIT -#endif - -/* Non-standard array fast path write behavior: when writing to numeric - * indexes of an Array instance, assume Array.prototype doesn't have - * conflicting properties (e.g. a non-writable property "7"). - */ -#define DUK_USE_NONSTD_ARRAY_WRITE -#if defined(DUK_OPT_NO_NONSTD_ARRAY_WRITE) -#undef DUK_USE_NONSTD_ARRAY_WRITE -#endif - -/* - * Tailcalls - */ - -/* Tailcalls are enabled by default. The non-standard function 'caller' - * property feature conflicts with tailcalls quite severely so tailcalls - * are disabled if the 'caller' property is enabled. - */ -#define DUK_USE_TAILCALL -#if defined(DUK_USE_NONSTD_FUNC_CALLER_PROPERTY) -#undef DUK_USE_TAILCALL -#endif - -/* - * Deep vs. shallow stack. - * - * Some embedded platforms have very shallow stack (e.g. 64kB); default to - * a shallow stack on unknown platforms or known embedded platforms. - */ - -#if defined(DUK_F_LINUX) || defined(DUK_F_BSD) || defined(DUK_F_WINDOWS) || \ - defined(DUK_OPT_DEEP_C_STACK) -#define DUK_USE_DEEP_C_STACK -#else -#undef DUK_USE_DEEP_C_STACK -#endif - -/* - * Ecmascript compiler - */ - -/* Ensure final bytecode never exceeds a certain byte size and never uses - * line numbers above a certain limit. This ensures that there is no need - * to deal with unbounded ranges in e.g. pc2line data structures. For now, - * limits are set so that signed 32-bit values can represent line number - * and byte offset with room to spare. - */ -#define DUK_USE_ESBC_LIMITS -#define DUK_USE_ESBC_MAX_LINENUMBER 0x7fff0000L -#define DUK_USE_ESBC_MAX_BYTES 0x7fff0000L - -#undef DUK_USE_SHUFFLE_TORTURE -#if defined(DUK_OPT_SHUFFLE_TORTURE) -#define DUK_USE_SHUFFLE_TORTURE -#endif - -/* - * User panic handler, panic exit behavior for default panic handler - */ - -#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_ABORT -#undef DUK_USE_PANIC_EXIT -#undef DUK_USE_PANIC_SEGFAULT - -#if defined(DUK_OPT_SEGFAULT_ON_PANIC) -#define DUK_USE_PANIC_SEGFAULT -#else -#define DUK_USE_PANIC_ABORT -#endif - -/* - * File I/O support. This is now used in a few API calls to e.g. push - * a string from file contents or eval a file. For portability it must - * be possible to disable I/O altogether. - */ - -#undef DUK_USE_FILE_IO -#if !defined(DUK_OPT_NO_FILE_IO) -#define DUK_USE_FILE_IO -#endif - -/* - * Optional run-time self tests executed when a heap is created. Some - * platform/compiler issues cannot be determined at compile time. One - * particular example is the bug described in misc/clang_aliasing.c. - */ - -#undef DUK_USE_SELF_TESTS -#if defined(DUK_OPT_SELF_TESTS) -#define DUK_USE_SELF_TESTS -#endif - -/* Double aliasing testcase fails when Emscripten-generated code is run - * on Firefox. This is not fatal because it only affects packed duk_tval - * which we avoid with Emscripten. - */ -#undef DUK_USE_NO_DOUBLE_ALIASING_SELFTEST -#if defined(DUK_F_EMSCRIPTEN) -#define DUK_USE_NO_DOUBLE_ALIASING_SELFTEST -#endif - -/* - * Codecs - */ - -#define DUK_USE_JX -#if defined(DUK_OPT_NO_JX) -#undef DUK_USE_JX -#endif - -#define DUK_USE_JC -#if defined(DUK_OPT_NO_JC) -#undef DUK_USE_JC -#endif - -/* - * InitJS code - */ - -/* Always use the built-in InitJS code for now. */ -#define DUK_USE_BUILTIN_INITJS - -/* User provided InitJS. */ -#undef DUK_USE_USER_INITJS -#if defined(DUK_OPT_USER_INITJS) -#define DUK_USE_USER_INITJS (DUK_OPT_USER_INITJS) -#endif - -/* - * External string data support - * - * Allow duk_hstrings to store data also behind an external pointer (see - * duk_hstring_external). This increases code size slightly but is useful - * in low memory environments where memory is more limited than flash. - */ - -#undef DUK_USE_HSTRING_EXTDATA -#if defined(DUK_OPT_EXTERNAL_STRINGS) -#define DUK_USE_HSTRING_EXTDATA -#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 - -#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 - -/* - * Lightweight functions - */ - -/* Force built-ins to use lightfunc function pointers when possible. This - * makes the built-in functions non-compliant with respect to their property - * values and such, but is very useful in low memory environments (can save - * around 14kB of initial RAM footprint). - */ -#undef DUK_USE_LIGHTFUNC_BUILTINS -#if defined(DUK_OPT_LIGHTFUNC_BUILTINS) -#define DUK_USE_LIGHTFUNC_BUILTINS -#endif - -/* - * Pointer compression and 16-bit header fields for low memory environments - */ - -#undef DUK_USE_HEAPPTR16 -#undef DUK_USE_HEAPPTR_ENC16 -#undef DUK_USE_HEAPPTR_DEC16 -#if defined(DUK_OPT_HEAPPTR16) && defined(DUK_OPT_HEAPPTR_ENC16) && defined(DUK_OPT_HEAPPTR_DEC16) -#define DUK_USE_HEAPPTR16 -#define DUK_USE_HEAPPTR_ENC16(udata,ptr) DUK_OPT_HEAPPTR_ENC16((udata),(ptr)) -#define DUK_USE_HEAPPTR_DEC16(udata,ptr) DUK_OPT_HEAPPTR_DEC16((udata),(ptr)) -#endif - -#undef DUK_USE_DATAPTR16 -#undef DUK_USE_DATAPTR_ENC16 -#undef DUK_USE_DATAPTR_DEC16 -#if defined(DUK_OPT_DATAPTR16) && defined(DUK_OPT_DATAPTR_ENC16) && defined(DUK_OPT_DATAPTR_DEC16) -#define DUK_USE_DATAPTR16 -#define DUK_USE_DATAPTR_ENC16(udata,ptr) DUK_OPT_DATAPTR_ENC16((udata),(ptr)) -#define DUK_USE_DATAPTR_DEC16(udata,ptr) DUK_OPT_DATAPTR_DEC16((udata),(ptr)) -#endif - -#undef DUK_USE_FUNCPTR16 -#undef DUK_USE_FUNCPTR_ENC16 -#undef DUK_USE_FUNCPTR_DEC16 -#if defined(DUK_OPT_FUNCPTR16) && defined(DUK_OPT_FUNCPTR_ENC16) && defined(DUK_OPT_FUNCPTR_DEC16) -#define DUK_USE_FUNCPTR16 -#define DUK_USE_FUNCPTR_ENC16(udata,ptr) DUK_OPT_FUNCPTR_ENC16((udata),(ptr)) -#define DUK_USE_FUNCPTR_DEC16(udata,ptr) DUK_OPT_FUNCPTR_DEC16((udata),(ptr)) -#endif - -#undef DUK_USE_REFCOUNT16 -#if defined(DUK_OPT_REFCOUNT16) -#define DUK_USE_REFCOUNT16 -#endif - -#undef DUK_USE_STRHASH16 -#if defined(DUK_OPT_STRHASH16) -#define DUK_USE_STRHASH16 -#endif - -#undef DUK_USE_STRLEN16 -#if defined(DUK_OPT_STRLEN16) -#define DUK_USE_STRLEN16 -#endif - -#undef DUK_USE_BUFLEN16 -#if defined(DUK_OPT_BUFLEN16) -#define DUK_USE_BUFLEN16 -#endif - -#undef DUK_USE_OBJSIZES16 -#if defined(DUK_OPT_OBJSIZES16) -#define DUK_USE_OBJSIZES16 -#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_USE_OBJSIZES16) -#undef DUK_USE_HOBJECT_HASH_PART -#endif - -/* - * Miscellaneous - */ - -#define DUK_USE_PROVIDE_DEFAULT_ALLOC_FUNCTIONS -#undef DUK_USE_EXPLICIT_NULL_INIT - -#if !defined(DUK_USE_PACKED_TVAL) -#define DUK_USE_EXPLICIT_NULL_INIT -#endif - -#define DUK_USE_ZERO_BUFFER_DATA -#if defined(DUK_OPT_NO_ZERO_BUFFER_DATA) -#undef DUK_USE_ZERO_BUFFER_DATA -#endif - -#undef DUK_USE_VARIADIC_MACROS -#if defined(DUK_F_C99) || (defined(DUK_F_CPP11) && defined(__GNUC__)) -#define DUK_USE_VARIADIC_MACROS -#endif -#if defined(_MSC_VER) && !defined(DUK_USE_VARIADIC_MACROS) -#if (_MSC_VER >= 1400) -/* VS2005+ should have variadic macros even when they're not C99. */ -#define DUK_USE_VARIADIC_MACROS -#endif -#endif - -/* - * Variable size array initialization. - * - * Variable size array at the end of a structure is nonportable. - * There are three alternatives: - * - * 1) C99 (flexible array member): char buf[] - * 2) Compiler specific (e.g. GCC): char buf[0] - * 3) Portable but wastes memory / complicates allocation: char buf[1] - */ - -/* XXX: Currently unused, only hbuffer.h needed this at some point. */ -#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 -#elif defined(__GNUC__) -#define DUK_USE_FLEX_ZEROSIZE -#else -#define DUK_USE_FLEX_ONESIZE -#endif - -/* - * GCC pragmas - */ - -/* XXX: GCC pragma inside a function fails in some earlier GCC versions (e.g. gcc 4.5). - * This is very approximate but allows clean builds for development right now. - */ -/* http://gcc.gnu.org/onlinedocs/cpp/Common-Predefined-Macros.html */ -#if defined(__GNUC__) && defined(__GNUC_MINOR__) && (__GNUC__ == 4) && (__GNUC_MINOR__ >= 6) -#define DUK_USE_GCC_PRAGMAS -#else -#undef DUK_USE_GCC_PRAGMAS -#endif - -/* - * User declarations - */ - -#if defined(DUK_OPT_DECLARE) -#define DUK_USE_USER_DECLARE() DUK_OPT_DECLARE -#else -#define DUK_USE_USER_DECLARE() /* no user declarations */ -#endif - -/* - * 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 - -#endif /* DUK_FEATURES_H_INCLUDED */ +#include "duk_config.h" /* * BEGIN PUBLIC API @@ -3138,9 +149,6 @@ extern "C" { /* * Public API specific typedefs * - * (duk_context *) maps directly to internal type (duk_hthread *). - * Currently only primitive typedefs have a '_t' suffix. - * * Many types are wrapped by Duktape for portability to rare platforms * where e.g. 'int' is a 16-bit type. See practical typing discussion * in Duktape web documentation. @@ -3150,7 +158,9 @@ struct duk_memory_functions; struct duk_function_list_entry; struct duk_number_list_entry; -typedef void duk_context; +/* duk_context is now defined in duk_config.h because it may also be + * referenced there by prototypes. + */ typedef struct duk_memory_functions duk_memory_functions; typedef struct duk_function_list_entry duk_function_list_entry; typedef struct duk_number_list_entry duk_number_list_entry; @@ -3198,13 +208,13 @@ struct duk_number_list_entry { * have 99 for patch level (e.g. 0.10.99 would be a development version * after 0.10.0 but before the next official release). */ -#define DUK_VERSION 10203L +#define DUK_VERSION 10299L /* Git describe for Duktape build. Useful for non-official snapshot builds * so that application code can easily log which Duktape snapshot was used. * Not available in the Ecmascript environment. */ -#define DUK_GIT_DESCRIBE "v1.2.3" +#define DUK_GIT_DESCRIBE "v1.2.0-310-g2a41d0a" /* Duktape debug protocol version used by this build. */ #define DUK_DEBUG_PROTOCOL_VERSION 1 @@ -3612,6 +622,7 @@ DUK_EXTERNAL_DECL duk_uint_t duk_get_uint(duk_context *ctx, duk_idx_t index); DUK_EXTERNAL_DECL const char *duk_get_string(duk_context *ctx, duk_idx_t index); DUK_EXTERNAL_DECL const char *duk_get_lstring(duk_context *ctx, duk_idx_t index, duk_size_t *out_len); DUK_EXTERNAL_DECL void *duk_get_buffer(duk_context *ctx, duk_idx_t index, duk_size_t *out_size); +DUK_EXTERNAL_DECL void *duk_get_buffer_data(duk_context *ctx, duk_idx_t index, duk_size_t *out_size); DUK_EXTERNAL_DECL void *duk_get_pointer(duk_context *ctx, duk_idx_t index); DUK_EXTERNAL_DECL duk_c_function duk_get_c_function(duk_context *ctx, duk_idx_t index); DUK_EXTERNAL_DECL duk_context *duk_get_context(duk_context *ctx, duk_idx_t index); @@ -3635,6 +646,7 @@ DUK_EXTERNAL_DECL duk_uint_t duk_require_uint(duk_context *ctx, duk_idx_t index) DUK_EXTERNAL_DECL const char *duk_require_string(duk_context *ctx, duk_idx_t index); DUK_EXTERNAL_DECL const char *duk_require_lstring(duk_context *ctx, duk_idx_t index, duk_size_t *out_len); DUK_EXTERNAL_DECL void *duk_require_buffer(duk_context *ctx, duk_idx_t index, duk_size_t *out_size); +DUK_EXTERNAL_DECL void *duk_require_buffer_data(duk_context *ctx, duk_idx_t index, duk_size_t *out_size); DUK_EXTERNAL_DECL void *duk_require_pointer(duk_context *ctx, duk_idx_t index); DUK_EXTERNAL_DECL duk_c_function duk_require_c_function(duk_context *ctx, duk_idx_t index); DUK_EXTERNAL_DECL duk_context *duk_require_context(duk_context *ctx, duk_idx_t index); @@ -3706,6 +718,7 @@ DUK_EXTERNAL_DECL void duk_json_decode(duk_context *ctx, duk_idx_t index); */ DUK_EXTERNAL_DECL void *duk_resize_buffer(duk_context *ctx, duk_idx_t index, duk_size_t new_size); +DUK_EXTERNAL_DECL void *duk_steal_buffer(duk_context *ctx, duk_idx_t index, duk_size_t *out_size); /* * Property access @@ -3805,6 +818,7 @@ DUK_EXTERNAL_DECL duk_codepoint_t duk_char_code_at(duk_context *ctx, duk_idx_t i DUK_EXTERNAL_DECL duk_bool_t duk_equals(duk_context *ctx, duk_idx_t index1, duk_idx_t index2); DUK_EXTERNAL_DECL duk_bool_t duk_strict_equals(duk_context *ctx, duk_idx_t index1, duk_idx_t index2); +DUK_EXTERNAL_DECL duk_bool_t duk_instanceof(duk_context *ctx, duk_idx_t index1, duk_idx_t index2); /* * Function (method) calls @@ -3951,6 +965,13 @@ DUK_EXTERNAL_DECL duk_int_t duk_compile_raw(duk_context *ctx, const char *src_bu duk_compile_raw((ctx), NULL, 0, (flags) | DUK_COMPILE_SAFE)) /* + * Bytecode load/dump + */ + +DUK_EXTERNAL_DECL void duk_dump_function(duk_context *ctx); +DUK_EXTERNAL_DECL void duk_load_function(duk_context *ctx); + +/* * Logging */ @@ -3996,131 +1017,98 @@ DUK_EXTERNAL_DECL void duk_debugger_detach(duk_context *ctx); DUK_EXTERNAL_DECL void duk_debugger_cooperate(duk_context *ctx); /* - * C++ name mangling + * Date provider related constants + * + * NOTE: These are "semi public" - you should only use these if you write + * your own platform specific Date provider, see doc/datetime.rst. */ -#ifdef __cplusplus -/* end 'extern "C"' wrapper */ -} -#endif - -#endif /* DUK_API_PUBLIC_H_INCLUDED */ +/* Millisecond count constants. */ +#define DUK_DATE_MSEC_SECOND 1000L +#define DUK_DATE_MSEC_MINUTE (60L * 1000L) +#define DUK_DATE_MSEC_HOUR (60L * 60L * 1000L) +#define DUK_DATE_MSEC_DAY (24L * 60L * 60L * 1000L) -/* - * END PUBLIC API +/* Ecmascript date range is 100 million days from Epoch: + * > 100e6 * 24 * 60 * 60 * 1000 // 100M days in millisecs + * 8640000000000000 + * (= 8.64e15) */ +#define DUK_DATE_MSEC_100M_DAYS (8.64e15) +#define DUK_DATE_MSEC_100M_DAYS_LEEWAY (8.64e15 + 24 * 3600e3) -/* - * Sanity check for the final effective internal defines. This file also - * double checks user tweaks made by an optional duk_custom.h header. +/* Ecmascript year range: + * > new Date(100e6 * 24 * 3600e3).toISOString() + * '+275760-09-13T00:00:00.000Z' + * > new Date(-100e6 * 24 * 3600e3).toISOString() + * '-271821-04-20T00:00:00.000Z' */ +#define DUK_DATE_MIN_ECMA_YEAR (-271821L) +#define DUK_DATE_MAX_ECMA_YEAR 275760L -#ifndef DUK_FEATURES_SANITY_H_INCLUDED -#define DUK_FEATURES_SANITY_H_INCLUDED - -/* - * Deprecated feature options. +/* Part indices for internal breakdowns. Part order from DUK_DATE_IDX_YEAR + * to DUK_DATE_IDX_MILLISECOND matches argument ordering of Ecmascript API + * calls (like Date constructor call). Some functions in duk_bi_date.c + * depend on the specific ordering, so change with care. 16 bits are not + * enough for all parts (year, specifically). * - * Catch so that user more easily notices and updates build. + * (Must be in-sync with genbuiltins.py.) */ +#define DUK_DATE_IDX_YEAR 0 /* year */ +#define DUK_DATE_IDX_MONTH 1 /* month: 0 to 11 */ +#define DUK_DATE_IDX_DAY 2 /* day within month: 0 to 30 */ +#define DUK_DATE_IDX_HOUR 3 +#define DUK_DATE_IDX_MINUTE 4 +#define DUK_DATE_IDX_SECOND 5 +#define DUK_DATE_IDX_MILLISECOND 6 +#define DUK_DATE_IDX_WEEKDAY 7 /* weekday: 0 to 6, 0=sunday, 1=monday, etc */ +#define DUK_DATE_IDX_NUM_PARTS 8 -#if defined(DUK_OPT_NO_FUNC_STMT) -#error DUK_OPT_NO_FUNC_STMT is deprecated, use DUK_OPT_NO_NONSTD_FUNC_STMT -#endif - -#if defined(DUK_OPT_FUNC_NONSTD_CALLER_PROPERTY) -#error DUK_OPT_FUNC_NONSTD_CALLER_PROPERTY is deprecated, use DUK_OPT_NONSTD_FUNC_CALLER_PROPERTY -#endif - -#if defined(DUK_OPT_FUNC_NONSTD_SOURCE_PROPERTY) -#error DUK_OPT_FUNC_NONSTD_SOURCE_PROPERTY is deprecated, use DUK_OPT_NONSTD_FUNC_SOURCE_PROPERTY -#endif - -#if defined(DUK_OPT_NO_ARRAY_SPLICE_NONSTD_DELCOUNT) -#error DUK_OPT_NO_ARRAY_SPLICE_NONSTD_DELCOUNT is deprecated, use DUK_OPT_NO_NONSTD_ARRAY_SPLICE_DELCOUNT -#endif - -#if defined(DUK_OPT_NO_OBJECT_ES6_PROTO_PROPERTY) -#error DUK_OPT_NO_OBJECT_ES6_PROTO_PROPERTY is deprecated, use DUK_OPT_NO_ES6_OBJECT_PROTO_PROPERTY -#endif - -#if defined(DUK_OPT_NO_OBJECT_ES6_SETPROTOTYPEOF) -#error DUK_OPT_NO_OBJECT_ES6_SETPROTOTYPEOF is deprecated, use DUK_OPT_NO_ES6_OBJECT_SETPROTOTYPEOF -#endif - -#if defined(DUK_OPT_NO_JSONX) -#error DUK_OPT_NO_JSONX is deprecated, use DUK_OPT_NO_JX -#endif - -#if defined(DUK_OPT_NO_JSONC) -#error DUK_OPT_NO_JSONC is deprecated, use DUK_OPT_NO_JC -#endif - -/* - * Debug print consistency +/* Internal API call flags, used for various functions in this file. + * Certain flags are used by only certain functions, but since the flags + * don't overlap, a single flags value can be passed around to multiple + * functions. + * + * The unused top bits of the flags field are also used to pass values + * to helpers (duk__get_part_helper() and duk__set_part_helper()). + * + * (Must be in-sync with genbuiltins.py.) */ -#if defined(DUK_USE_DPRINT) && !defined(DUK_USE_DEBUG) -#error DUK_USE_DPRINT without DUK_USE_DEBUG -#endif - -#if defined(DUK_USE_DDPRINT) && !defined(DUK_USE_DEBUG) -#error DUK_USE_DDPRINT without DUK_USE_DEBUG -#endif - -#if defined(DUK_USE_DDDPRINT) && !defined(DUK_USE_DEBUG) -#error DUK_USE_DDDPRINT without DUK_USE_DEBUG -#endif - -#if defined(DUK_USE_HEAPPTR16) && defined(DUK_USE_DEBUG) -/* Debug code doesn't have access to 'heap' so it cannot decode pointers. */ -#error debug printing cannot currently be used with heap pointer compression -#endif - -/* - * Debugger consistency +/* NOTE: when writing a Date provider you only need a few specific + * flags from here, the rest are internal. Avoid using anything you + * don't need. */ -#if defined(DUK_USE_DEBUGGER_SUPPORT) -#if !defined(DUK_USE_INTERRUPT_COUNTER) -#error DUK_USE_INTERRUPT_COUNTER is needed when debugger support is enabled -#endif -#if !defined(DUK_USE_PC2LINE) -#error DUK_USE_PC2LINE is needed when debugger support is enabled -#endif -#endif +#define DUK_DATE_FLAG_NAN_TO_ZERO (1 << 0) /* timeval breakdown: internal time value NaN -> zero */ +#define DUK_DATE_FLAG_NAN_TO_RANGE_ERROR (1 << 1) /* timeval breakdown: internal time value NaN -> RangeError (toISOString) */ +#define DUK_DATE_FLAG_ONEBASED (1 << 2) /* timeval breakdown: convert month and day-of-month parts to one-based (default is zero-based) */ +#define DUK_DATE_FLAG_EQUIVYEAR (1 << 3) /* timeval breakdown: replace year with equivalent year in the [1971,2037] range for DST calculations */ +#define DUK_DATE_FLAG_LOCALTIME (1 << 4) /* convert time value to local time */ +#define DUK_DATE_FLAG_SUB1900 (1 << 5) /* getter: subtract 1900 from year when getting year part */ +#define DUK_DATE_FLAG_TOSTRING_DATE (1 << 6) /* include date part in string conversion result */ +#define DUK_DATE_FLAG_TOSTRING_TIME (1 << 7) /* include time part in string conversion result */ +#define DUK_DATE_FLAG_TOSTRING_LOCALE (1 << 8) /* use locale specific formatting if available */ +#define DUK_DATE_FLAG_TIMESETTER (1 << 9) /* setter: call is a time setter (affects hour, min, sec, ms); otherwise date setter (affects year, month, day-in-month) */ +#define DUK_DATE_FLAG_YEAR_FIXUP (1 << 10) /* setter: perform 2-digit year fixup (00...99 -> 1900...1999) */ +#define DUK_DATE_FLAG_SEP_T (1 << 11) /* string conversion: use 'T' instead of ' ' as a separator */ +#define DUK_DATE_FLAG_VALUE_SHIFT 12 /* additional values begin at bit 12 */ /* - * Garbage collection consistency + * C++ name mangling */ -#if defined(DUK_USE_REFERENCE_COUNTING) && !defined(DUK_USE_DOUBLE_LINKED_HEAP) -#error DUK_USE_REFERENCE_COUNTING defined without DUK_USE_DOUBLE_LINKED_HEAP +#ifdef __cplusplus +/* end 'extern "C"' wrapper */ +} #endif -#if defined(DUK_USE_GC_TORTURE) && !defined(DUK_USE_MARK_AND_SWEEP) -#error DUK_USE_GC_TORTURE defined without DUK_USE_MARK_AND_SWEEP -#endif +#endif /* DUK_API_PUBLIC_H_INCLUDED */ /* - * Low memory feature consistency + * END PUBLIC API */ -#if defined(DUK_USE_OBJSIZES16) -#if defined(DUK_USE_HOBJECT_HASH_PART) -#error DUK_USE_OBJSIZES16 assumes DUK_USE_HOBJECT_HASH_PART is not defined -#endif -#endif - -#if defined(DUK_USE_STRTAB_CHAIN) && defined(DUK_USE_STRTAB_PROBE) -#error both DUK_USE_STRTAB_CHAIN and DUK_USE_STRTAB_PROBE defined -#endif -#if !defined(DUK_USE_STRTAB_CHAIN) && !defined(DUK_USE_STRTAB_PROBE) -#error neither DUK_USE_STRTAB_CHAIN nor DUK_USE_STRTAB_PROBE is defined -#endif - -#endif /* DUK_FEATURES_SANITY_H_INCLUDED */ - /* * Union to access IEEE double memory representation, indexes for double * memory representation, and some macros for double manipulation. @@ -4180,6 +1168,7 @@ DUK_EXTERNAL_DECL void duk_debugger_cooperate(duk_context *ctx); union duk_double_union { double d; + float f[2]; #ifdef DUK_USE_64BIT_OPS duk_uint64_t ull[1]; #endif @@ -4451,9 +1440,24 @@ typedef union duk_double_union duk_double_union; } while (0) #endif /* DUK_USE_PACKED_TVAL */ -/* Byteswap an (aligned) duk_double_union. */ +/* XXX: native 64-bit byteswaps when available */ + +/* 64-bit byteswap, same operation independent of target endianness. */ +#define DUK_DBLUNION_BSWAP64(u) do { \ + duk_uint32_t duk__bswaptmp1, duk__bswaptmp2; \ + duk__bswaptmp1 = (u)->ui[0]; \ + duk__bswaptmp2 = (u)->ui[1]; \ + duk__bswaptmp1 = DUK_BSWAP32(duk__bswaptmp1); \ + duk__bswaptmp2 = DUK_BSWAP32(duk__bswaptmp2); \ + (u)->ui[0] = duk__bswaptmp2; \ + (u)->ui[1] = duk__bswaptmp1; \ + } while (0) + +/* Byteswap an IEEE double in the duk_double_union from host to network + * order. For a big endian target this is a no-op. + */ #if defined(DUK_USE_DOUBLE_LE) -#define DUK_DBLUNION_BSWAP(u) do { \ +#define DUK_DBLUNION_DOUBLE_HTON(u) do { \ duk_uint32_t duk__bswaptmp1, duk__bswaptmp2; \ duk__bswaptmp1 = (u)->ui[0]; \ duk__bswaptmp2 = (u)->ui[1]; \ @@ -4463,7 +1467,7 @@ typedef union duk_double_union duk_double_union; (u)->ui[1] = duk__bswaptmp1; \ } while (0) #elif defined(DUK_USE_DOUBLE_ME) -#define DUK_DBLUNION_BSWAP(u) do { \ +#define DUK_DBLUNION_DOUBLE_HTON(u) do { \ duk_uint32_t duk__bswaptmp1, duk__bswaptmp2; \ duk__bswaptmp1 = (u)->ui[0]; \ duk__bswaptmp2 = (u)->ui[1]; \ @@ -4473,11 +1477,14 @@ typedef union duk_double_union duk_double_union; (u)->ui[1] = duk__bswaptmp2; \ } while (0) #elif defined(DUK_USE_DOUBLE_BE) -#define DUK_DBLUNION_BSWAP(u) do { } while (0) +#define DUK_DBLUNION_DOUBLE_HTON(u) do { } while (0) #else #error internal error, double endianness insane #endif +/* Reverse operation is the same. */ +#define DUK_DBLUNION_DOUBLE_NTOH(u) DUK_DBLUNION_DOUBLE_HTON((u)) + #endif /* DUK_DBLUNION_H_INCLUDED */ #endif /* DUKTAPE_H_INCLUDED */ |