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11 Commits

Author SHA1 Message Date
brendan%mozilla.org
7b679e2fab Fix inverted sense of 'did warning become error due to werror option' tests.
git-svn-id: svn://10.0.0.236/branches/JS15_20000111_BRANCH@58052 18797224-902f-48f8-a5cc-f745e15eee43
2000-01-17 23:47:52 +00:00
brendan%mozilla.org
0d01f8033d Uh, need to grow the JSAtomList's hash table...
git-svn-id: svn://10.0.0.236/branches/JS15_20000111_BRANCH@58051 18797224-902f-48f8-a5cc-f745e15eee43
2000-01-17 23:46:41 +00:00
shaver%netscape.com
53137124fd fixes for 22243 (error on excess catch) and 22245 (scope fixes)
git-svn-id: svn://10.0.0.236/branches/JS15_20000111_BRANCH@57973 18797224-902f-48f8-a5cc-f745e15eee43
2000-01-16 21:14:24 +00:00
brendan%mozilla.org
511d8b83b4 I'm a dumbass: checked into branch instead of branch-of-branch; backing out.
git-svn-id: svn://10.0.0.236/branches/JS15_20000111_BRANCH@57835 18797224-902f-48f8-a5cc-f745e15eee43
2000-01-14 20:01:07 +00:00
brendan%mozilla.org
7dcedb4415 Mothballing perl5 global regexp x target-string lastIndex work.
git-svn-id: svn://10.0.0.236/branches/JS15_20000111_BRANCH@57790 18797224-902f-48f8-a5cc-f745e15eee43
2000-01-14 06:43:10 +00:00
brendan%mozilla.org
7a663cc428 Split JOF_CONST cases to avoid redundant tests.
git-svn-id: svn://10.0.0.236/branches/JS15_20000111_BRANCH@57785 18797224-902f-48f8-a5cc-f745e15eee43
2000-01-14 04:36:21 +00:00
brendan%mozilla.org
9fe9e57e71 Allow regexp at start of statement.
git-svn-id: svn://10.0.0.236/branches/JS15_20000111_BRANCH@57783 18797224-902f-48f8-a5cc-f745e15eee43
2000-01-14 04:32:11 +00:00
brendan%mozilla.org
dc75deae59 Fix to isolate readonly attributes in CheckRedeclaration.
git-svn-id: svn://10.0.0.236/branches/JS15_20000111_BRANCH@57639 18797224-902f-48f8-a5cc-f745e15eee43
2000-01-13 05:54:50 +00:00
brendan%mozilla.org
81cb9c0bc5 Avoid taking the address of a cast expression; use _ prudently.
git-svn-id: svn://10.0.0.236/branches/JS15_20000111_BRANCH@57559 18797224-902f-48f8-a5cc-f745e15eee43
2000-01-12 20:09:04 +00:00
brendan%mozilla.org
47da1ec39f Spankage for JS1.5 fixes.
git-svn-id: svn://10.0.0.236/branches/JS15_20000111_BRANCH@57496 18797224-902f-48f8-a5cc-f745e15eee43
2000-01-12 02:20:54 +00:00
(no author)
a0049e6301 This commit was manufactured by cvs2svn to create branch
'JS15_20000111_BRANCH'.

git-svn-id: svn://10.0.0.236/branches/JS15_20000111_BRANCH@57358 18797224-902f-48f8-a5cc-f745e15eee43
2000-01-11 05:13:03 +00:00
368 changed files with 66992 additions and 104276 deletions

47
mozilla/js/src/MANIFEST Normal file
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# This file is required for the Mac client mozilla build.
# This is a list of local files which get copied to the mozilla:dist directory
#
js.msg
jsapi.h
jsarena.h
jspubtd.h
jsarray.h
jsatom.h
jsbool.h
jsclist.h
jscntxt.h
jscompat.h
jsconfig.h
jscpucfg.h
jsdate.h
jsdbgapi.h
jsdtoa.h
jsemit.h
jsfun.h
jsgc.h
jshash.h
jsinterp.h
jslock.h
jslong.h
jsmath.h
jsnum.h
jsobj.h
jsopcode.tbl
jsopcode.h
jsosdep.h
jsotypes.h
jsparse.h
jsprf.h
jsprvtd.h
jspubtd.h
jsregexp.h
jsscan.h
jsscope.h
jsscript.h
jsstr.h
jstypes.h
jsutil.h
jsxdrapi.h

324
mozilla/js/src/Makefile.in Normal file
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#
# The contents of this file are subject to the Netscape Public
# License Version 1.1 (the "License"); you may not use this file
# except in compliance with the License. You may obtain a copy of
# the License at http://www.mozilla.org/NPL/
#
# Software distributed under the License is distributed on an "AS
# IS" basis, WITHOUT WARRANTY OF ANY KIND, either express oqr
# implied. See the License for the specific language governing
# rights and limitations under the License.
#
# The Original Code is Mozilla Communicator client code, released
# March 31, 1998.
#
# The Initial Developer of the Original Code is Netscape
# Communications Corporation. Portions created by Netscape are
# Copyright (C) 1998 Netscape Communications Corporation. All
# Rights Reserved.
#
# Contributor(s):
#
# Alternatively, the contents of this file may be used under the
# terms of the GNU Public License (the "GPL"), in which case the
# provisions of the GPL are applicable instead of those above.
# If you wish to allow use of your version of this file only
# under the terms of the GPL and not to allow others to use your
# version of this file under the NPL, indicate your decision by
# deleting the provisions above and replace them with the notice
# and other provisions required by the GPL. If you do not delete
# the provisions above, a recipient may use your version of this
# file under either the NPL or the GPL.
#
DEPTH = ../..
topsrcdir = @top_srcdir@
srcdir = @srcdir@
VPATH = @srcdir@
include $(DEPTH)/config/autoconf.mk
MODULE = js
LIBRARY_NAME = mozjs
DIRS = $(OJIDIR) fdlibm xpconnect
CSRCS = \
jsapi.c \
jsarena.c \
jsarray.c \
jsatom.c \
jsbool.c \
jscntxt.c \
jsdate.c \
jsdbgapi.c \
jsdtoa.c \
jsemit.c \
jsexn.c \
jsfun.c \
jsgc.c \
jshash.c \
jsinterp.c \
jslock.c \
jslog2.c \
jslong.c \
jsmath.c \
jsnum.c \
jsobj.c \
jsopcode.c \
jsparse.c \
jsprf.c \
jsregexp.c \
jsscan.c \
jsscope.c \
jsscript.c \
jsstr.c \
jsutil.c \
jsxdrapi.c \
prmjtime.c \
$(NULL)
EXPORTS = \
js.msg \
jsapi.h \
jsarray.h \
jsarena.h \
jsatom.h \
jsbit.h \
jsbool.h \
jsclist.h \
jscntxt.h \
jscompat.h \
jsconfig.h \
jsdate.h \
jsdbgapi.h \
jsemit.h \
jsfun.h \
jsgc.h \
jshash.h \
jsinterp.h \
jslock.h \
jslong.h \
jsmath.h \
jsnum.h \
jsobj.h \
jsopcode.tbl \
jsopcode.h \
jsosdep.h \
jsotypes.h \
jsparse.h \
jsprf.h \
jsprvtd.h \
jspubtd.h \
jsregexp.h \
jsscan.h \
jsscope.h \
jsscript.h \
jsstr.h \
jstypes.h \
jsutil.h \
jsxdrapi.h \
jsstddef.h \
$(NULL)
EXPORTS := $(addprefix $(srcdir)/, $(EXPORTS))
FDLIBM_LIBRARY = fdlibm/libfdm.a
JSMATH_PRELINK = jsmathtemp.o
JS_SAFE_ARENA = 1
ifdef MOZ_OJI
OJIDIR = liveconnect
endif
DASH_R = -r
include $(topsrcdir)/config/config.mk
ifeq ($(OS_ARCH),OS2)
ifndef XCFLAGS
OS2_IMPLIB = 1
LIBRARY = js$(MOZ_BITS)$(VERSION_NUMBER).$(LIB_SUFFIX)
DEF_FILE = jsos2$(VERSION_NUMBER).def
EXTRA_LIBS = $(NSPR_LIBS) $(LIBNSJAVA)
else
EXTRA_LIBS = $(NSPR_LIBS) $(LIBNSJAVA) libjs.lib
endif
OS_CFLAGS += -tm-
endif
EXTRA_DSO_LDOPTS += $(MOZ_COMPONENT_NSPR_LIBS)
# When using gcc the assembly is inlined in the C-file (see jslock.c)
ifdef NS_USE_NATIVE
ASFILES = $(notdir $(wildcard $(srcdir)/*_$(OS_ARCH).s))
endif
ifndef BUILD_OPT
MOCHAFILE = 1
endif
ifndef NSBUILDROOT
JSJAVA_STUBHEADERS = \
-I$(topsrcdir)/sun-java/include/_gen \
-I$(topsrcdir)/sun-java/netscape/javascript/_jri \
-I$(topsrcdir)/sun-java/netscape/security/_jri
else
JSJAVA_STUBHEADERS = -I$(JRI_GEN_DIR) -I$(JDK_GEN_DIR)
endif
JSJAVA_CFLAGS = \
-I$(topsrcdir)/sun-java/md-include \
-I$(topsrcdir)/sun-java/include \
$(JSJAVA_STUBHEADERS)
include $(topsrcdir)/config/rules.mk
DEFINES += -DEXPORT_JS_API
INCLUDES += -I$(srcdir)
GARBAGE += $(JSMATH_PRELINK) jscpucfg.o jsautocfg.h jsautocfg.tmp jscpucfg
TARGETS += jscpucfg
ifdef JS_SAFE_ARENA
DEFINES += -DJS_USE_SAFE_ARENA
endif
ifdef JS_THREADSAFE
DEFINES += -DJS_THREADSAFE
endif
ifdef JS_NO_THIN_LOCKS
DEFINES += -DJS_USE_ONLY_NSPR_LOCKS
endif
ifdef JS_VERSION
DEFINES += -DJS_VERSION=$(JS_VERSION)
endif
ifneq ($(findstring -L,$(NSPR_LIBS)),)
NSPR_STATIC_PATH = $(subst -L,,$(findstring -L,$(NSPR_LIBS)))
else
NSPR_STATIC_PATH = $(DIST)/lib
endif
LDFLAGS = $(pathsubst -l%,$(NSPR_STATIC_PATH)/%.a,$(NSPR_LIBS))
ifneq ($(OS_ARCH),BeOS)
LDFLAGS += -lm
endif
ifeq ($(OS_ARCH),FreeBSD)
LDFLAGS += -pthread
endif
ifeq ($(OS_ARCH),IRIX)
ifneq ($(basename $(OS_RELEASE)),5)
LDFLAGS += -n32
DASH_R += -n32
endif
endif
ifeq ($(OS_ARCH),Linux)
LDFLAGS += -ldl
endif
ifeq ($(OS_ARCH),OSF1)
LDFLAGS += -lc_r
endif
ifeq ($(OS_ARCH),SunOS)
ifeq ($(CPU_ARCH),sparc)
ifndef JS_NO_ULTRA
ULTRA_OPTIONS := -xarch=v8plus,-DULTRA_SPARC
ULTRA_OPTIONSCC := -DULTRA_SPARC
else
ULTRA_OPTIONS := -xarch=v8
ULTRA_OPTIONSCC :=
endif
ifeq ($(shell uname -m),sun4u)
ASFLAGS += -Wa,$(ULTRA_OPTIONS),-P,-L,-D_ASM,-D__STDC__=0 $(ULTRA_OPTIONSCC)
else
ASFLAGS += -Wa,-xarch=v8,-P,-L,-D_ASM,-D__STDC__=0
endif
endif
ifeq ($(OS_RELEASE),4.1)
LDFLAGS += -ldl -lnsl
else
LDFLAGS += -lposix4 -ldl -lnsl -lsocket
endif
endif
ifeq ($(OS_ARCH),QNX)
ifneq ($(OS_TARGET),NTO)
# Don't use wildcard here, because we only want this resolved at link time.
OBJS += fdlibm/*.o
endif
endif
# special rule for jsmath.o since we want to incrementally link
# against fdlibm to pull in only what is needed
jsmath.o: $(FDLIBM_LIBRARY) $(JSMATH_PRELINK)
ifeq ($(OS_ARCH),QNX)
ifneq ($(OS_TARGET),NTO)
@cp $(JSMATH_PRELINK) $@
else
$(LD) $(DASH_R) -o $@ $(JSMATH_PRELINK) $(FDLIBM_LIBRARY)
endif
else
$(LD) $(DASH_R) -o $@ $(JSMATH_PRELINK) $(FDLIBM_LIBRARY)
endif
$(JSMATH_PRELINK): jsmath.c
ifneq (,$(filter OS2 WINNT,$(OS_ARCH)))
$(CC) -Fo$@ -c $(CFLAGS) $<
else
$(CC) -o $@ -c $(COMPILE_CFLAGS) $<
endif
# An AIX Optimization bug causes PR_dtoa() & JS_dtoa to produce wrong result.
# This suppresses optimization for this single compilation unit.
ifeq ($(OS_ARCH),AIX)
jsdtoa.o: jsdtoa.c
$(CC) -o $@ -c $(filter-out -O, $(COMPILE_CFLAGS)) $<
endif
$(FDLIBM_LIBRARY):
@set -e; set $(EXIT_ON_ERROR); \
oldDir=`pwd`; \
echo "cd $(@D); $(MAKE) $(@F)"; \
cd $(@D); $(MAKE) $(@F); cd $$oldDir; \
set +e
jsopcode.h jsopcode.c: jsopcode.tbl
jsautocfg.h: jscpucfg
@rm -f $@ jsautocfg.tmp
./jscpucfg > jsautocfg.tmp
mv jsautocfg.tmp $@
# jscpucfg is a strange target
# Needs to be built with the host compiler but needs to include
# the mdcpucfg for the target so it needs the appropriate target defines
ifdef HOST_NSPR_MDCPUCFG
HOST_CC := $(HOST_CC) -DMDCPUCFG=$(TARGET_NSPR_MDCPUCFG)
endif
ifeq ($(OS_ARCH),QNX)
ifneq ($(OS_TARGET),NTO)
# QNX's compiler apparently can't build a binary directly from a source file.
jscpucfg.o: jscpucfg.c
$(HOST_CC) $(HOST_CFLAGS) -c $(DEFINES) $(NSPR_CFLAGS) -o $@ $<
jscpucfg: jscpucfg.o
$(HOST_CC) $(HOST_CFLAGS) $(DEFINES) -o $@ $<
endif
else
jscpucfg: jscpucfg.c
$(HOST_CC) $(HOST_CFLAGS) $(DEFINES) $(NSPR_CFLAGS) -o $@ $<
endif
export:: jsautocfg.h
$(INSTALL) -m 444 $< $(PUBLIC)

294
mozilla/js/src/Makefile.ref Normal file
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#
# The contents of this file are subject to the Netscape Public
# License Version 1.1 (the "License"); you may not use this file
# except in compliance with the License. You may obtain a copy of
# the License at http://www.mozilla.org/NPL/
#
# Software distributed under the License is distributed on an "AS
# IS" basis, WITHOUT WARRANTY OF ANY KIND, either express oqr
# implied. See the License for the specific language governing
# rights and limitations under the License.
#
# The Original Code is Mozilla Communicator client code, released
# March 31, 1998.
#
# The Initial Developer of the Original Code is Netscape
# Communications Corporation. Portions created by Netscape are
# Copyright (C) 1998 Netscape Communications Corporation. All
# Rights Reserved.
#
# Contributor(s):
#
# Alternatively, the contents of this file may be used under the
# terms of the GNU Public License (the "GPL"), in which case the
# provisions of the GPL are applicable instead of those above.
# If you wish to allow use of your version of this file only
# under the terms of the GPL and not to allow others to use your
# version of this file under the NPL, indicate your decision by
# deleting the provisions above and replace them with the notice
# and other provisions required by the GPL. If you do not delete
# the provisions above, a recipient may use your version of this
# file under either the NPL or the GPL.
#
# JSRef GNUmake makefile.
#
DEPTH = .
include config.mk
#NS_USE_NATIVE = 1
ifdef USE_MSVC
OTHER_LIBS += fdlibm/$(OBJDIR)/fdlibm.lib
else
OTHER_LIBS += -Lfdlibm/$(OBJDIR) -lfdm
endif
ifdef JS_THREADSAFE
DEFINES += -DJS_THREADSAFE
INCLUDES += -I../../dist/$(OBJDIR)/include
ifdef USE_MSVC
OTHER_LIBS += ../../dist/$(OBJDIR)/lib/libnspr3.lib
else
OTHER_LIBS += -L../../dist/$(OBJDIR)/lib -lnspr3
endif
endif
ifdef JS_NO_THIN_LOCKS
DEFINES += -DJS_USE_ONLY_NSPR_LOCKS
endif
ifdef JS_HAS_FILE_OBJECT
DEFINES += -DJS_HAS_FILE_OBJECT
endif
#
# XCFLAGS may be set in the environment or on the gmake command line
#
CFLAGS += $(OPTIMIZER) $(OS_CFLAGS) $(DEFINES) $(INCLUDES) $(XCFLAGS)
LDFLAGS = -lm $(XLDFLAGS)
#
# Ask perl what flags it was built with, so we can build js with similar flags
# and link properly. Viva gmake.
#
ifdef JS_PERLCONNECT
DEFINES += -DPERLCONNECT
PERLCFLAGS := $(shell perl -MExtUtils::Embed -e ccopts)
PERLLDFLAGS := $(shell perl -MExtUtils::Embed -e ldopts)
CFLAGS += $(PERLCFLAGS)
LDFLAGS += $(PERLLDFLAGS)
endif
#
# Server-related changes :
#
ifdef NES40
DEFINES += -DNES40
endif
#
# Line editing support.
#
ifdef JS_READLINE
DEFINES += -DEDITLINE
PROG_LIBS += -lreadline
else
ifdef JS_EDITLINE
PREDIRS += editline
DEFINES += -DEDITLINE
PROG_LIBS += -Leditline/$(OBJDIR) -ledit
endif
endif
# For purify
PURE_CFLAGS = -DXP_UNIX $(OPTIMIZER) $(PURE_OS_CFLAGS) $(DEFINES) \
$(INCLUDES) $(XCFLAGS)
#
# JS file lists
#
JS_HFILES = \
jsarray.h \
jsatom.h \
jsbool.h \
jsconfig.h \
jscntxt.h \
jsdate.h \
jsemit.h \
jsexn.h \
jsfun.h \
jsgc.h \
jsinterp.h \
jslibmath.h \
jslock.h \
jsmath.h \
jsnum.h \
jsobj.h \
jsopcode.h \
jsparse.h \
jsarena.h \
jsclist.h \
jsdtoa.h \
jshash.h \
jslong.h \
jsosdep.h \
jstypes.h \
jsprvtd.h \
jspubtd.h \
jsregexp.h \
jsscan.h \
jsscope.h \
jsscript.h \
jsstr.h \
jsxdrapi.h \
$(NULL)
API_HFILES = \
jsapi.h \
jsdbgapi.h \
$(NULL)
OTHER_HFILES = \
jsbit.h \
jscompat.h \
jscpucfg.h \
jsotypes.h \
jsstddef.h \
prmjtime.h \
resource.h \
jsopcode.tbl \
js.msg \
jsshell.msg \
$(NULL)
ifndef PREBUILT_CPUCFG
OTHER_HFILES += $(OBJDIR)/jsautocfg.h
endif
HFILES = $(JS_HFILES) $(API_HFILES) $(OTHER_HFILES)
JS_CFILES = \
jsapi.c \
jsarena.c \
jsarray.c \
jsatom.c \
jsbool.c \
jscntxt.c \
jsdate.c \
jsdbgapi.c \
jsdtoa.c \
jsemit.c \
jsexn.c \
jsfun.c \
jsgc.c \
jshash.c \
jsinterp.c \
jslock.c \
jslog2.c \
jslong.c \
jsmath.c \
jsnum.c \
jsobj.c \
jsopcode.c \
jsparse.c \
jsprf.c \
jsregexp.c \
jsscan.c \
jsscope.c \
jsscript.c \
jsstr.c \
jsutil.c \
jsxdrapi.c \
prmjtime.c \
$(NULL)
PREDIRS += fdlibm
ifdef JS_LIVECONNECT
DIRS += liveconnect
endif
ifdef JS_PERLCONNECT
JS_CFILES += jsperl.c
endif
ifdef JS_HAS_FILE_OBJECT
JS_CFILES += jsfile.c
JS_HFILES += jsfile.h
endif
LIB_CFILES = $(JS_CFILES)
LIB_ASFILES := $(wildcard *_$(OS_ARCH).s)
PROG_CFILES = js.c
ifdef USE_MSVC
LIBRARY = $(OBJDIR)/js32.lib
SHARED_LIBRARY = $(OBJDIR)/js32.dll
PROGRAM = $(OBJDIR)/js.exe
else
LIBRARY = $(OBJDIR)/libjs.a
SHARED_LIBRARY = $(OBJDIR)/libjs.$(SO_SUFFIX)
PROGRAM = $(OBJDIR)/js
endif
ifdef USE_MSVC
FDLIBM_LIBRARY = fdlibm.lib
else
FDLIBM_LIBRARY = libfdm.a
endif
include rules.mk
MOZ_DEPTH = ../..
include jsconfig.mk
nsinstall-target:
cd ../../config; $(MAKE) OBJDIR=$(OBJDIR) OBJDIR_NAME=$(OBJDIR)
ifdef USE_MSVC
$(PROGRAM): $(PROG_OBJS) $(LIBRARY) fdlibm/$(OBJDIR)/$(FDLIBM_LIBRARY)
link.exe -out:"$@" $(EXE_LINK_FLAGS) $^
else
$(PROGRAM): $(PROG_OBJS) $(LIBRARY) fdlibm/$(OBJDIR)/$(FDLIBM_LIBRARY)
$(CC) -o $@ $(CFLAGS) $(PROG_OBJS) $(LIBRARY) $(LDFLAGS) $(OTHER_LIBS) \
$(PROG_LIBS)
endif
$(PROGRAM).pure: $(PROG_OBJS) $(LIBRARY)
purify $(PUREFLAGS) \
$(CC) -o $@ $(PURE_OS_CFLAGS) $(PROG_OBJS) $(LIBRARY) $(LDFLAGS) \
$(OTHER_LIBS) $(PROG_LIBS)
ifndef PREBUILT_CPUCFG
$(HFILES) $(CFILES): $(OBJDIR)/jsautocfg.h
$(OBJDIR)/jsautocfg.h: $(OBJDIR)/jscpucfg
rm -f $@
$(OBJDIR)/jscpucfg > $@
$(OBJDIR)/jscpucfg: $(OBJDIR)/jscpucfg.o
$(CC) -o $@ $(OBJDIR)/jscpucfg.o
# Look in OBJDIR to find jsautocfg.h
INCLUDES += -I$(OBJDIR)
# Add to TARGETS for clobber rule
TARGETS += $(OBJDIR)/jsautocfg.h $(OBJDIR)/jscpucfg $(OBJDIR)/jscpucfg.o
endif
#
# Hardwire dependencies on jsopcode.tbl
#
jsopcode.h jsopcode.c: jsopcode.tbl
-include $(DEPENDENCIES)
TARNAME = jsref.tar
TARFILES = files `cat files`
SUFFIXES: .i
%.i: %.c
$(CC) -C -E $(CFLAGS) $< > $*.i

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mozilla/js/src/README.html Normal file
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<!doctype html public "-//w3c//dtd html 4.0 transitional//en">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
<meta name="GENERATOR" content="Mozilla/4.5 [en] (WinNT; I) [Netscape]">
<title>JavaScript Reference Implementation (JSRef) README</title>
</head>
<body>
<h2>
Table of Contents</h2>
<ul>
<li>
<a href="#Introduction">Introduction</a></li>
<li>
<a href="#Build">Build conventions (standalone JS engine and shell)</a></li>
<li>
<a href="#Debugging">Debugging notes</a></li>
<li>
<a href="#Conventions">Naming and coding conventions</a></li>
<li>
<a href="#JSAPI">Using the JS API</a></li>
<li>
<a href="#Design">Design walk-through</a></li>
</ul>
<h2>
<a NAME="Introduction"></a>Introduction</h2>
This is the README file for the&nbsp;<span CLASS=LXRSHORTDESC>JavaScript
Reference (JSRef) implementation.</span> It consists of build conventions
and instructions, source code conventions, a design walk-through, and a
brief file-by-file description of the source.
<p><span CLASS=LXRLONGDESC>JSRef builds a library or DLL containing the
JavaScript runtime (compiler, interpreter, decompiler, garbage collector,
atom manager, standard classes). It then compiles a small "shell" program
and links that with the library to make an interpreter that can be used
interactively and with test .js files to run scripts.&nbsp; The code has
no dependencies on the Navigator code.</span>
<p><i>Quick start tip</i>: skip to "Using the JS API" below, build the
js shell, and play with the object named "it" (start by setting 'it.noisy
= true').
<h2>
<a NAME="Build"></a>Build conventions (standalone JS engine and shell)</h2>
These build directions refer only to building the standalone JavaScript
engine and shell.&nbsp; To build within the browser, refer to the <a href="http://www.mozilla.org/docs/">build
directions</a> on the mozilla.org website.
<p>By default, all platforms build a version of the JS engine that is <i>not</i>
threadsafe.&nbsp; If you require thread-safety, you must also populate
the <tt>mozilla/dist</tt> directory with <a href="http://www.mozilla.org/docs/tplist/catCode/nsprdesc.htm">NSPR</a>
headers and libraries.&nbsp; (NSPR implements a portable threading library,
among other things.&nbsp; The source is downloadable via <a href="http://www.mozilla.org/cvs.html">CVS</a>
from <tt><a href="http://cvs-mirror.mozilla.org/webtools/lxr/source/nsprpub">mozilla/nsprpub</a></tt>.)&nbsp;
Next, you must define <tt>JS_THREADSAFE</tt> when building the JS engine,
either on the command-line (gmake/nmake) or in a universal header file.
<h3>
Windows</h3>
<ul>
<li>
Use MSVC 4.2 or 5.0.</li>
<li>
For building from the IDE use <tt>js/src/js.mdp</tt>.&nbsp; (<tt>js.mdp</tt>
is an MSVC4.2 project file, but if you load it into MSVC5, it will be converted
to the newer project file format.)&nbsp; <font color="#CC0000">NOTE: makefile.win
is an nmake file used only for building the JS-engine in the Mozilla browser.&nbsp;
Don't attempt to use it to build the standalone JS-engine.</font></li>
<li>
If you prefer to build from the command-line, use '<tt>nmake -f js.mak</tt>'</li>
<li>
Executable shell <tt>js.exe</tt> and runtime library <tt>js32.dll</tt>
are created in either <tt>js/src/Debug</tt> or <tt>js/src/Release</tt>.</li>
</ul>
<h3>
Macintosh</h3>
<ul>
<li>
Use CodeWarrior 3.x</li>
<li>
Load the project file <tt>js:src:macbuild:JSRef.mcp </tt>and select "Make"
from the menu.</li>
</ul>
<h3>
Unix</h3>
<ul>
<li>
Use '<tt>gmake -f Makefile.ref</tt>' to build. To compile optimized code,
pass <tt>BUILD_OPT=1</tt> on the gmake command line or preset it in the
environment or <tt>Makefile.ref</tt>.&nbsp; <font color="#CC0000">NOTE:
Do not attempt to use Makefile to build the standalone JavaScript engine.&nbsp;
This file is used only for building the JS-engine in the Mozilla browser.</font></li>
<li>
<font color="#000000">Each platform on which JS is built must have a <tt>*.mk</tt>
configuration file in the <tt>js/src/config</tt> directory.&nbsp; The configuration
file specifies the compiler/linker to be used and allows for customization
of command-line options.&nbsp; To date, the build system has been tested
on Solaris, AIX, HP/UX, OSF, IRIX, x86 Linux and Windows NT.</font></li>
<li>
<font color="#000000">Most platforms will work with either the vendor compiler
</font>or
<a href="ftp://prep.ai.mit.edu/pub/gnu">gcc</a>.&nbsp;
(Except that HP builds only work using the native compiler.&nbsp; gcc won't
link correctly with shared libraries on that platform.&nbsp; If someone
knows a way to fix this, <a href="mailto:wynholds@netscape.com">let us
know</a>.)</li>
<li>
<font color="#000000">If you define <tt>JS_LIVECONNECT</tt>, gmake will
descend into the liveconnect directory and build <a href="http://cvs-mirror.mozilla.org/webtools/lxr/source/js/src/liveconnect/README.html">LiveConnect</a>
after building the JS engine.</font></li>
<li>
To build a binary drop (a zip'ed up file of headers, libraries, binaries),
check out <tt>mozilla/config</tt> and <tt>mozilla/nsprpub/config</tt>.&nbsp;
Use '<tt>gmake -f Makefile.ref nsinstall-target all export ship</tt>'</li>
</ul>
<h2>
<a NAME="Debugging"></a>Debugging notes</h2>
<ul>
<li>
To turn on GC instrumentation, define <tt>JS_GCMETER</tt>.</li>
<li>
To turn on the arena package's instrumentation, define <tt>JS_ARENAMETER</tt>.</li>
<li>
To turn on the hash table package's metering, define <tt>JS_HASHMETER</tt>.</li>
</ul>
<h2>
<a NAME="Conventions"></a>Naming and coding conventions</h2>
<ul>
<li>
Public function names begin with <tt>JS_</tt> followed by capitalized "intercaps",
e.g. <tt>JS_NewObject</tt>.</li>
<li>
Extern but library-private function names use a <tt>js_</tt> prefix and
mixed case, e.g. <tt>js_LookupSymbol</tt>.</li>
<li>
Most static function names have unprefixed, mixed-case names: <tt>GetChar</tt>.</li>
<li>
But static native methods of JS objects have lowercase, underscore-separated
or intercaps names, e.g., <tt>str_indexOf</tt>.</li>
<li>
And library-private and static data use underscores, not intercaps (but
library-private data do use a <tt>js_</tt> prefix).</li>
<li>
Scalar type names are lowercase and js-prefixed: <tt>jsdouble</tt>.</li>
<li>
Aggregate type names are JS-prefixed and mixed-case: <tt>JSObject.</tt></li>
<li>
Macros are generally <tt>ALL_CAPS </tt>and underscored, to call out potential
side effects, multiple uses of a formal argument, etc. - Four spaces of
indentation per statement nesting level.</li>
<li>
Tabs are taken to be eight spaces, and an Emacs magic comment at the top
of each file tries to help. If you're using MSVC or similar, you'll want
to set tab width to 8, or convert these files to be space-filled.</li>
<li>
DLL entry points have their return type expanded within a <tt>JS_PUBLIC_API()</tt>
macro call, to get the right Windows secret type qualifiers in the right
places for both 16- and 32-bit builds.</li>
<li>
Callback functions that might be called from a DLL are similarly macroized
with <tt>JS_STATIC_DLL_CALLBACK</tt> (if the function otherwise would be
static to hide its name) or <tt>JS_DLL_CALLBACK</tt> (this macro takes
no type argument; it should be used after the return type and before the
function name).</li>
</ul>
<h2>
<a NAME="JSAPI"></a>Using the JS API</h2>
<h4>
Starting up</h4>
<pre><tt>&nbsp;&nbsp;&nbsp; /*
&nbsp;&nbsp;&nbsp;&nbsp; * Tune this to avoid wasting space for shallow stacks, while saving on
&nbsp;&nbsp;&nbsp;&nbsp; * malloc overhead/fragmentation for deep or highly-variable stacks.
&nbsp;&nbsp;&nbsp;&nbsp; */
&nbsp;&nbsp;&nbsp; #define STACK_CHUNK_SIZE&nbsp;&nbsp;&nbsp; 8192
&nbsp;&nbsp;&nbsp; JSRuntime *rt;
&nbsp;&nbsp;&nbsp; JSContext *cx;
&nbsp;&nbsp;&nbsp; /* You need a runtime and one or more contexts to do anything with JS. */
&nbsp;&nbsp;&nbsp; rt = JS_Init(1000000L);
&nbsp;&nbsp;&nbsp; if (!rt)
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; fail("can't create JavaScript runtime");
&nbsp;&nbsp;&nbsp; cx = JS_NewContext(rt, STACK_CHUNK_SIZE);
&nbsp;&nbsp;&nbsp; if (!cx)
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; fail("can't create JavaScript context");
&nbsp;&nbsp;&nbsp; /*
&nbsp;&nbsp;&nbsp;&nbsp; * The context definitely wants a global object, in order to have standard
&nbsp;&nbsp;&nbsp;&nbsp; * classes and functions like Date and parseInt.&nbsp; See below for details on
&nbsp;&nbsp;&nbsp;&nbsp; * JS_NewObject.
&nbsp;&nbsp;&nbsp;&nbsp; */
&nbsp;&nbsp;&nbsp; JSObject *globalObj;
&nbsp;&nbsp;&nbsp; globalObj = JS_NewObject(cx, &amp;my_global_class, 0, 0);
&nbsp;&nbsp;&nbsp; JS_InitStandardClasses(cx, globalObj);</tt></pre>
<h4>
Defining objects and properties</h4>
<pre><tt>&nbsp;&nbsp;&nbsp; /* Statically initialize a class to make "one-off" objects. */
&nbsp;&nbsp;&nbsp; JSClass my_class = {
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; "MyClass",
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; /* All of these can be replaced with the corresponding JS_*Stub
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; function pointers. */
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; my_addProperty, my_delProperty, my_getProperty, my_setProperty,
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; my_enumerate,&nbsp;&nbsp; my_resolve,&nbsp;&nbsp;&nbsp;&nbsp; my_convert,&nbsp;&nbsp;&nbsp;&nbsp; my_finalize
&nbsp;&nbsp;&nbsp; };
&nbsp;&nbsp;&nbsp; JSObject *obj;
&nbsp;&nbsp;&nbsp; /*
&nbsp;&nbsp;&nbsp;&nbsp; * Define an object named in the global scope that can be enumerated by
&nbsp;&nbsp;&nbsp;&nbsp; * for/in loops.&nbsp; The parent object is passed as the second argument, as
&nbsp;&nbsp;&nbsp;&nbsp; * with all other API calls that take an object/name pair.&nbsp; The prototype
&nbsp;&nbsp;&nbsp;&nbsp; * passed in is null, so the default object prototype will be used.
&nbsp;&nbsp;&nbsp;&nbsp; */
&nbsp;&nbsp;&nbsp; obj = JS_DefineObject(cx, globalObj, "myObject", &amp;my_class, 0,
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; JSPROP_ENUMERATE);
&nbsp;&nbsp;&nbsp; /*
&nbsp;&nbsp;&nbsp;&nbsp; * Define a bunch of properties with a JSPropertySpec array statically
&nbsp;&nbsp;&nbsp;&nbsp; * initialized and terminated with a null-name entry.&nbsp; Besides its name,
&nbsp;&nbsp;&nbsp;&nbsp; * each property has a "tiny" identifier (MY_COLOR, e.g.) that can be used
&nbsp;&nbsp;&nbsp;&nbsp; * in switch statements (in a common my_getProperty function, for example).
&nbsp;&nbsp;&nbsp;&nbsp; */
&nbsp;&nbsp;&nbsp; enum my_tinyid {
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; MY_COLOR, MY_HEIGHT, MY_WIDTH, MY_FUNNY, MY_ARRAY, MY_RDONLY
&nbsp;&nbsp;&nbsp; };
&nbsp;&nbsp;&nbsp; static JSPropertySpec my_props[] = {
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; {"color",&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; MY_COLOR,&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; JSPROP_ENUMERATE},
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; {"height",&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; MY_HEIGHT,&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; JSPROP_ENUMERATE},
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; {"width",&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; MY_WIDTH,&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; JSPROP_ENUMERATE},
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; {"funny",&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; MY_FUNNY,&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; JSPROP_ENUMERATE},
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; {"array",&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; MY_ARRAY,&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; JSPROP_ENUMERATE},
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; {"rdonly",&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; MY_RDONLY,&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; JSPROP_READONLY},
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; {0}
&nbsp;&nbsp;&nbsp; };
&nbsp;&nbsp;&nbsp; JS_DefineProperties(cx, obj, my_props);
&nbsp;&nbsp;&nbsp; /*
&nbsp;&nbsp;&nbsp;&nbsp; * Given the above definitions and call to JS_DefineProperties, obj will
&nbsp;&nbsp;&nbsp;&nbsp; * need this sort of "getter" method in its class (my_class, above).&nbsp; See
&nbsp;&nbsp;&nbsp;&nbsp; * the example for the "It" class in js.c.
&nbsp;&nbsp;&nbsp;&nbsp; */
&nbsp;&nbsp;&nbsp; static JSBool
&nbsp;&nbsp;&nbsp; my_getProperty(JSContext *cx, JSObject *obj, jsval id, jsval *vp)
&nbsp;&nbsp;&nbsp; {
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; if (JSVAL_IS_INT(id)) {
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; switch (JSVAL_TO_INT(id)) {
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; case MY_COLOR:&nbsp; *vp = . . .; break;
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; case MY_HEIGHT: *vp = . . .; break;
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; case MY_WIDTH:&nbsp; *vp = . . .; break;
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; case MY_FUNNY:&nbsp; *vp = . . .; break;
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; case MY_ARRAY:&nbsp; *vp = . . .; break;
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; case MY_RDONLY: *vp = . . .; break;
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; }
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; }
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; return JS_TRUE;
&nbsp;&nbsp;&nbsp; }</tt></pre>
<h4>
Defining functions</h4>
<pre><tt>&nbsp;&nbsp;&nbsp; /* Define a bunch of native functions first: */
&nbsp;&nbsp;&nbsp; static JSBool
&nbsp;&nbsp;&nbsp; my_abs(JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval)
&nbsp;&nbsp;&nbsp; {
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; jsdouble x, z;
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; if (!JS_ValueToNumber(cx, argv[0], &amp;x))
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; return JS_FALSE;
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; z = (x &lt; 0) ? -x : x;
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; return JS_NewDoubleValue(cx, z, rval);
&nbsp;&nbsp;&nbsp; }
&nbsp;&nbsp;&nbsp; . . .
&nbsp;&nbsp;&nbsp; /*
&nbsp;&nbsp;&nbsp;&nbsp; * Use a JSFunctionSpec array terminated with a null name to define a
&nbsp;&nbsp;&nbsp;&nbsp; * bunch of native functions.
&nbsp;&nbsp;&nbsp;&nbsp; */
&nbsp;&nbsp;&nbsp; static JSFunctionSpec my_functions[] = {
&nbsp;&nbsp;&nbsp; /*&nbsp;&nbsp;&nbsp; name&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; native&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; nargs&nbsp;&nbsp;&nbsp; */
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; {"abs",&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; my_abs,&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 1},
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; {"acos",&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; my_acos,&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 1},
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; {"asin",&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; my_asin,&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 1},
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; . . .
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; {0}
&nbsp;&nbsp;&nbsp; };
&nbsp;&nbsp;&nbsp; /*
&nbsp;&nbsp;&nbsp;&nbsp; * Pass a particular object to define methods for it alone.&nbsp; If you pass
&nbsp;&nbsp;&nbsp;&nbsp; * a prototype object, the methods will apply to all instances past and
&nbsp;&nbsp;&nbsp;&nbsp; * future of the prototype's class (see below for classes).
&nbsp;&nbsp;&nbsp;&nbsp; */
&nbsp;&nbsp;&nbsp; JS_DefineFunctions(cx, globalObj, my_functions);</tt></pre>
<h4>
Defining classes</h4>
<pre><tt>&nbsp;&nbsp;&nbsp; /*
&nbsp;&nbsp;&nbsp;&nbsp; * This pulls together the above API elements by defining a constructor
&nbsp;&nbsp;&nbsp;&nbsp; * function, a prototype object, and properties of the prototype and of
&nbsp;&nbsp;&nbsp;&nbsp; * the constructor, all with one API call.
&nbsp;&nbsp;&nbsp;&nbsp; *
&nbsp;&nbsp;&nbsp;&nbsp; * Initialize a class by defining its constructor function, prototype, and
&nbsp;&nbsp;&nbsp;&nbsp; * per-instance and per-class properties.&nbsp; The latter are called "static"
&nbsp;&nbsp;&nbsp;&nbsp; * below by analogy to Java.&nbsp; They are defined in the constructor object's
&nbsp;&nbsp;&nbsp;&nbsp; * scope, so that 'MyClass.myStaticProp' works along with 'new MyClass()'.
&nbsp;&nbsp;&nbsp;&nbsp; *
&nbsp;&nbsp;&nbsp;&nbsp; * JS_InitClass takes a lot of arguments, but you can pass null for any of
&nbsp;&nbsp;&nbsp;&nbsp; * the last four if there are no such properties or methods.
&nbsp;&nbsp;&nbsp;&nbsp; *
&nbsp;&nbsp;&nbsp;&nbsp; * Note that you do not need to call JS_InitClass to make a new instance of
&nbsp;&nbsp;&nbsp;&nbsp; * that class -- otherwise there would be a chicken-and-egg problem making
&nbsp;&nbsp;&nbsp;&nbsp; * the global object -- but you should call JS_InitClass if you require a
&nbsp;&nbsp;&nbsp;&nbsp; * constructor function for script authors to call via new, and/or a class
&nbsp;&nbsp;&nbsp;&nbsp; * prototype object ('MyClass.prototype') for authors to extend with new
&nbsp;&nbsp;&nbsp;&nbsp; * properties at run-time.
&nbsp;&nbsp;&nbsp;&nbsp; */
&nbsp;&nbsp;&nbsp; protoObj = JS_InitClass(cx, globalObj, &amp;my_class,
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; /* native constructor function and min arg count */
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; MyClass, 0,
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; /* prototype object properties and methods -- these
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; will be "inherited" by all instances through
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; delegation up the instance's prototype link. */
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; my_props, my_methods,
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; /* class constructor properties and methods */
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; my_static_props, my_static_methods);</tt></pre>
<h4>
Running scripts</h4>
<pre><tt>&nbsp;&nbsp;&nbsp; /* These should indicate source location for diagnostics. */
&nbsp;&nbsp;&nbsp; char *filename;
&nbsp;&nbsp;&nbsp; uintN lineno;
&nbsp;&nbsp;&nbsp; /*
&nbsp;&nbsp;&nbsp;&nbsp; * The return value comes back here -- if it could be a GC thing, you must
&nbsp;&nbsp;&nbsp;&nbsp; * add it to the GC's "root set" with JS_AddRoot(cx, &amp;thing) where thing
&nbsp;&nbsp;&nbsp;&nbsp; * is a JSString *, JSObject *, or jsdouble *, and remove the root before
&nbsp;&nbsp;&nbsp;&nbsp; * rval goes out of scope, or when rval is no longer needed.
&nbsp;&nbsp;&nbsp;&nbsp; */
&nbsp;&nbsp;&nbsp; jsval rval;
&nbsp;&nbsp;&nbsp; JSBool ok;
&nbsp;&nbsp;&nbsp; /*
&nbsp;&nbsp;&nbsp;&nbsp; * Some example source in a C string.&nbsp; Larger, non-null-terminated buffers
&nbsp;&nbsp;&nbsp;&nbsp; * can be used, if you pass the buffer length to JS_EvaluateScript.
&nbsp;&nbsp;&nbsp;&nbsp; */
&nbsp;&nbsp;&nbsp; char *source = "x * f(y)";
&nbsp;&nbsp;&nbsp; ok = JS_EvaluateScript(cx, globalObj, source, strlen(source),
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; filename, lineno, &amp;rval);
&nbsp;&nbsp;&nbsp; if (ok) {
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; /* Should get a number back from the example source. */
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; jsdouble d;
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ok = JS_ValueToNumber(cx, rval, &amp;d);
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; . . .
&nbsp;&nbsp;&nbsp; }</tt></pre>
<h4>
Calling functions</h4>
<pre><tt>&nbsp;&nbsp;&nbsp; /* Call a global function named "foo" that takes no arguments. */
&nbsp;&nbsp;&nbsp; ok = JS_CallFunctionName(cx, globalObj, "foo", 0, 0, &amp;rval);
&nbsp;&nbsp;&nbsp; jsval argv[2];
&nbsp;&nbsp;&nbsp; /* Call a function in obj's scope named "method", passing two arguments. */
&nbsp;&nbsp;&nbsp; argv[0] = . . .;
&nbsp;&nbsp;&nbsp; argv[1] = . . .;
&nbsp;&nbsp;&nbsp; ok = JS_CallFunctionName(cx, obj, "method", 2, argv, &amp;rval);</tt></pre>
<h4>
Shutting down</h4>
<pre><tt>&nbsp;&nbsp;&nbsp; /* For each context you've created: */
&nbsp;&nbsp;&nbsp; JS_DestroyContext(cx);
&nbsp;&nbsp;&nbsp; /* And finally: */
&nbsp;&nbsp;&nbsp; JS_Finish(rt);</tt></pre>
<h4>
Debugging API</h4>
See the<tt> trap, untrap, watch, unwatch, line2pc</tt>, and <tt>pc2line</tt>
commands in <tt>js.c</tt>. Also the (scant) comments in <i>jsdbgapi.h</i>.
<h2>
<a NAME="Design"></a>Design walk-through</h2>
This section must be brief for now -- it could easily turn into a book.
<h4>
JS "JavaScript Proper"</h4>
JS modules declare and implement the JavaScript compiler, interpreter,
decompiler, GC and atom manager, and standard classes.
<p>JavaScript uses untyped bytecode and runtime type tagging of data values.
The <tt>jsval</tt> type is a signed machine word that contains either a
signed integer value (if the low bit is set), or a type-tagged pointer
or boolean value (if the low bit is clear). Tagged pointers all refer to
8-byte-aligned things in the GC heap.
<p>Objects consist of a possibly shared structural description, called
the map or scope; and unshared property values in a vector, called the
slots. Object properties are associated with nonnegative integers stored
in <tt>jsval</tt>'s, or with atoms (unique string descriptors) if named
by an identifier or a non-integral index expression.
<p>Scripts contain bytecode, source annotations, and a pool of string,
number, and identifier literals. Functions are objects that extend scripts
or native functions with formal parameters, a literal syntax, and a distinct
primitive type ("function").
<p>The compiler consists of a recursive-descent parser and a random-logic
rather than table-driven lexical scanner. Semantic and lexical feedback
are used to disambiguate hard cases such as missing semicolons, assignable
expressions ("lvalues" in C parlance), etc. The parser generates bytecode
as it parses, using fixup lists for downward branches and code buffering
and rewriting for exceptional cases such as for loops. It attempts no error
recovery. The interpreter executes the bytecode of top-level scripts, and
calls itself indirectly to interpret function bodies (which are also scripts).
All state associated with an interpreter instance is passed through formal
parameters to the interpreter entry point; most implicit state is collected
in a type named JSContext. Therefore, all API and almost all other functions
in JSRef take a JSContext pointer as their first argument.
<p>The decompiler translates postfix bytecode into infix source by consulting
a separate byte-sized code, called source notes, to disambiguate bytecodes
that result from more than one grammatical production.
<p>The GC is a mark-and-sweep, non-conservative (perfect) collector. It
can allocate only fixed-sized things -- the current size is two machine
words. It is used to hold JS object and string descriptors (but not property
lists or string bytes), and double-precision floating point numbers. It
runs automatically only when maxbytes (as passed to <tt>JS_Init()</tt>)
bytes of GC things have been allocated and another thing-allocation request
is made. JS API users should call <tt>JS_GC()</tt> or <tt>JS_MaybeGC()</tt>
between script executions or from the branch callback, as often as necessary.
<p>An important point about the GC's "perfection": you must add roots for
new objects created by your native methods if you store references to them
into a non-JS structure in the malloc heap or in static data. Also, if
you make a new object in a native method, but do not store it through the
<tt>rval</tt>
result parameter (see math_abs in the "Using the JS API" section above)
so that it is in a known root, the object is guaranteed to survive only
until another new object is created. Either lock the first new object when
making two in a row, or store it in a root you've added, or store it via
rval.
<p>The atom manager consists of a hash table associating strings uniquely
with scanner/parser information such as keyword type, index in script or
function literal pool, etc. Atoms play three roles in JSRef: as literals
referred to by unaligned 16-bit immediate bytecode operands, as unique
string descriptors for efficient property name hashing, and as members
of the root GC set for perfect GC. This design therefore requires atoms
to be manually reference counted, from script literal pools (<tt>JSAtomMap</tt>)
and object symbol (<tt>JSSymbol</tt>) entry keys.
<p>Native objects and methods for arrays, booleans, dates, functions, numbers,
and strings are implemented using the JS API and certain internal interfaces
used as "fast paths".
<p>In general, errors are signaled by false or unoverloaded-null return
values, and are reported using <tt>JS_ReportError()</tt> or one of its
variants by the lowest level in order to provide the most detail. Client
code can substitute its own error reporting function and suppress errors,
or reflect them into Java or some other runtime system as exceptions, GUI
dialogs, etc..
<h2>
File walk-through (BADLY OUT OF DATE!)</h2>
<h4>
jsapi.c, jsapi.h</h4>
The public API to be used by almost all client code.&nbsp; If your client
code can't make do with <tt>jsapi.h</tt>, and must reach into a friend
or private js* file, please let us know so we can extend <tt>jsapi.h</tt>
to include what you need in a fashion that we can support over the long
run.
<h4>
jspubtd.h, jsprvtd.h</h4>
These files exist to group struct and scalar typedefs so they can be used
everywhere without dragging in struct definitions from N different files.
The <tt>jspubtd.h</tt> file contains public typedefs, and is included by
<tt>jsapi.h</tt>.
The <tt>jsprvtd.h</tt> file contains private typedefs and is included by
various .h files that need type names, but not type sizes or declarations.
<h4>
jsdbgapi.c, jsdbgapi.h</h4>
The Debugging API, still very much under development. Provided so far:
<ul>
<li>
Traps, with which breakpoints, single-stepping, step over, step out, and
so on can be implemented. The debugger will have to consult jsopcode.def
on its own to figure out where to plant trap instructions to implement
functions like step out, but a future jsdbgapi.h will provide convenience
interfaces to do these things. At most one trap per bytecode can be set.
When a script (<tt>JSScript</tt>) is destroyed, all traps set in its bytecode
are cleared.</li>
<li>
Watchpoints, for intercepting set operations on properties and running
a debugger-supplied function that receives the old value and a pointer
to the new one, which it can use to modify the new value being set.</li>
<li>
Line number to PC and back mapping functions. The line-to-PC direction
"rounds" toward the next bytecode generated from a line greater than or
equal to the input line, and may return the PC of a for-loop update part,
if given the line number of the loop body's closing brace. Any line after
the last one in a script or function maps to a PC one byte beyond the last
bytecode in the script. An example, from perfect.js:</li>
<pre><tt>14&nbsp;&nbsp; function perfect(n)
15&nbsp;&nbsp; {
16&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; print("The perfect numbers up to " +&nbsp; n + " are:");
17
18&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; // We build sumOfDivisors[i] to hold a string expression for
19&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; // the sum of the divisors of i, excluding i itself.
20&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; var sumOfDivisors = new ExprArray(n+1,1);
21&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; for (var divisor = 2; divisor &lt;= n; divisor++) {
22&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; for (var j = divisor + divisor; j &lt;= n; j += divisor) {
23&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; sumOfDivisors[j] += " + " + divisor;
24&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; }
25&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; // At this point everything up to 'divisor' has its sumOfDivisors
26&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; // expression calculated, so we can determine whether it's perfect
27&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; // already by evaluating.
28&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; if (eval(sumOfDivisors[divisor]) == divisor) {
29&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; print("" + divisor + " = " + sumOfDivisors[divisor]);
30&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; }
31&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; }
32&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; delete sumOfDivisors;
33&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; print("That's all.");
34&nbsp;&nbsp; }</tt></pre>
The line number to PC and back mappings can be tested using the js program
with the following script:
<pre><tt>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; load("perfect.js")
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; print(perfect)
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; dis(perfect)
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; print()
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; for (var ln = 0; ln &lt;= 40; ln++) {
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; var pc = line2pc(perfect,ln)
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; var ln2 = pc2line(perfect,pc)
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; print("\tline " + ln + " => pc " + pc + " => line " + ln2)
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; }</tt></pre>
The result of the for loop over lines 0 to 40 inclusive is:
<pre><tt>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; line 0 => pc 0 => line 16
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; line 1 => pc 0 => line 16
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; line 2 => pc 0 => line 16
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; line 3 => pc 0 => line 16
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; line 4 => pc 0 => line 16
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; line 5 => pc 0 => line 16
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; line 6 => pc 0 => line 16
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; line 7 => pc 0 => line 16
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; line 8 => pc 0 => line 16
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; line 9 => pc 0 => line 16
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; line 10 => pc 0 => line 16
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; line 11 => pc 0 => line 16
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; line 12 => pc 0 => line 16
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; line 13 => pc 0 => line 16
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; line 14 => pc 0 => line 16
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; line 15 => pc 0 => line 16
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; line 16 => pc 0 => line 16
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; line 17 => pc 19 => line 20
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; line 18 => pc 19 => line 20
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; line 19 => pc 19 => line 20
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; line 20 => pc 19 => line 20
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; line 21 => pc 36 => line 21
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; line 22 => pc 53 => line 22
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; line 23 => pc 74 => line 23
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; line 24 => pc 92 => line 22
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; line 25 => pc 106 => line 28
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; line 26 => pc 106 => line 28
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; line 27 => pc 106 => line 28
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; line 28 => pc 106 => line 28
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; line 29 => pc 127 => line 29
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; line 30 => pc 154 => line 21
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; line 31 => pc 154 => line 21
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; line 32 => pc 161 => line 32
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; line 33 => pc 172 => line 33
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; line 34 => pc 172 => line 33
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; line 35 => pc 172 => line 33
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; line 36 => pc 172 => line 33
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; line 37 => pc 172 => line 33
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; line 38 => pc 172 => line 33
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; line 39 => pc 172 => line 33
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; line 40 => pc 172 => line 33</tt></pre>
</ul>
<h4>
jsconfig.h</h4>
Various configuration macros defined as 0 or 1 depending on how <tt>JS_VERSION</tt>
is defined (as 10 for JavaScript 1.0, 11 for JavaScript 1.1, etc.). Not
all macros are tested around related code yet. In particular, JS 1.0 support
is missing from JSRef. JS 1.2 support will appear in a future JSRef release.
<br>&nbsp;
<h4>
js.c</h4>
The "JS shell", a simple interpreter program that uses the JS API and more
than a few internal interfaces (some of these internal interfaces could
be replaced by <tt>jsapi.h</tt> calls). The js program built from this
source provides a test vehicle for evaluating scripts and calling functions,
trying out new debugger primitives, etc.
<h4>
jsarray.*, jsbool.*, jdsdate.*, jsfun.*, jsmath.*, jsnum.*, jsstr.*</h4>
These file pairs implement the standard classes and (where they exist)
their underlying primitive types. They have similar structure, generally
starting with class definitions and continuing with internal constructors,
finalizers, and helper functions.
<h4>
jsobj.*, jsscope.*</h4>
These two pairs declare and implement the JS object system. All of the
following happen here:
<ul>
<li>
creating objects by class and prototype, and finalizing objects;</li>
<li>
defining, looking up, getting, setting, and deleting properties;</li>
<li>
creating and destroying properties and binding names to them.</li>
</ul>
The details of an object map (scope) are mostly hidden in <tt>jsscope.[ch]</tt>,
where scopes start out as linked lists of symbols, and grow after some
threshold into PR hash tables.
<h4>
jsatom.c, jsatom.h</h4>
The atom manager. Contains well-known string constants, their atoms, the
global atom hash table and related state, the js_Atomize() function that
turns a counted string of bytes into an atom, and literal pool (<tt>JSAtomMap</tt>)
methods.
<h4>
jsgc.c, jsgc.h</h4>
[TBD]
<h4>
jsinterp.*, jscntxt.*</h4>
The bytecode interpreter, and related functions such as Call and AllocStack,
live in <i>jsinterp.c</i>. The JSContext constructor and destructor are
factored out into <i>jscntxt.c</i> for minimal linking when the compiler
part of JS is split from the interpreter part into a separate program.
<h4>
jsemit.*, jsopcode.tbl, jsopcode.*, jsparse.*, jsscan.*, jsscript.*</h4>
Compiler and decompiler modules. The <i>jsopcode.tbl</i> file is a C preprocessor
source that defines almost everything there is to know about JS bytecodes.
See its major comment for how to use it. For now, a debugger will use it
and its dependents such as <i>jsopcode.h</i> directly, but over time we
intend to extend <i>jsdbgapi.h</i> to hide uninteresting details and provide
conveniences. The code generator is split across paragraphs of code in
<i>jsparse.c</i>,
and the utility methods called on <tt>JSCodeGenerator</tt> appear in <i>jsemit.c</i>.
Source notes generated by <i>jsparse.c</i> and
<i>jsemit.c</i> are used
in <i>jsscript.c</i> to map line number to program counter and back.
<h4>
jstypes.h, jslog2.c</h4>
Fundamental representation types and utility macros. This file alone among
all .h files in JSRef must be included first by .c files. It is not nested
in .h files, as other prerequisite .h files generally are, since it is
also a direct dependency of most .c files and would be over-included if
nested in addition to being directly included. The one "not-quite-a-macro
macro" is the <tt>JS_CeilingLog2()</tt> function in <i>jslog2.c</i>.
<h4>
jsarena.c, jsarena.h</h4>
Last-In-First-Out allocation macros that amortize malloc costs and allow
for en-masse freeing. See the paper mentioned in prarena.h's major comment.
<h4>
jsutil.c, jsutil.h</h4>
The <tt>JS_ASSERT</tt> macro is used throughout JSRef source as a proof
device to make invariants and preconditions clear to the reader, and to
hold the line during maintenance and evolution against regressions or violations
of assumptions that it would be too expensive to test unconditionally at
run-time. Certain assertions are followed by run-time tests that cope with
assertion failure, but only where I'm too smart or paranoid to believe
the assertion will never fail...
<h4>
jsclist.h</h4>
Doubly-linked circular list struct and macros.
<h4>
jscpucfg.c</h4>
This standalone program generates <i>jscpucfg.h</i>, a header file containing
bytes per word and other constants that depend on CPU architecture and
C compiler type model. It tries to discover most of these constants by
running its own experiments on the build host, so if you are cross-compiling,
beware.
<h4>
prdtoa.c, prdtoa.h</h4>
David Gay's portable double-precision floating point to string conversion
code, with Permission To Use notice included.
<h4>
prhash.c, prhash.h</h4>
Portable, extensible hash tables. These use multiplicative hash for strength
reduction over division hash, yet with very good key distribution over
power of two table sizes. Collisions resolve via chaining, so each entry
burns a malloc and can fragment the heap.
<h4>
prlong.c, prlong.h</h4>
64-bit integer emulation, and compatible macros that use C's long long
type where it exists (my last company mapped long long to a 128-bit type,
but no real architecture does 128-bit ints yet).
<h4>
jsosdep.h</h4>
Annoying OS dependencies rationalized into a few "feature-test" macros
such as <tt>JS_HAVE_LONG_LONG</tt>.
<h4>
jsprf.*</h4>
Portable, buffer-overrun-resistant sprintf and friends. For no good reason
save lack of time, the %e, %f, and %g formats cause your system's native
sprintf, rather than <tt>JS_dtoa()</tt>, to be used. This bug doesn't affect
JSRef, because it uses its own <tt>JS_dtoa()</tt> call in <i>jsnum.c</i>
to convert from double to string, but it's a bug that we'll fix later,
and one you should be aware of if you intend to use a <tt>JS_*printf()</tt>&nbsp;
function with your own floating type arguments - various vendor sprintf's
mishandle NaN, +/-Inf, and some even print normal floating values inaccurately.
<h4>
prmjtime.c, prmjtime.h</h4>
Time functions. These interfaces are named in a way that makes local vs.
universal time confusion likely. Caveat emptor, and we're working on it.
To make matters worse, Java (and therefore JavaScript) uses "local" time
numbers (offsets from the epoch) in its Date class.
</body>
</html>

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@@ -0,0 +1,12 @@
mozilla/js/src/*
mozilla/js/src/config/*
mozilla/js/src/fdlibm/*
mozilla/js/src/liveconnect/*
mozilla/js/src/liveconnect/_jni/*
mozilla/js/src/liveconnect/classes/*
mozilla/js/src/liveconnect/classes/netscape/*
mozilla/js/src/liveconnect/classes/netscape/javascript/*
mozilla/js/src/liveconnect/config/*
mozilla/js/src/liveconnect/macbuild/*
mozilla/js/src/liveconnect/macbuild/JavaSession/*
mozilla/js/src/macbuild/*

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mozilla/js/src/config.mk Normal file
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ifdef JS_DIST
DIST = $(JS_DIST)
else
DIST = $(DEPTH)/../../dist/$(OBJDIR)
endif
# Set os+release dependent make variables
OS_ARCH := $(subst /,_,$(shell uname -s))
# Attempt to differentiate between SunOS 5.4 and x86 5.4
OS_CPUARCH := $(shell uname -m)
ifeq ($(OS_CPUARCH),i86pc)
OS_RELEASE := $(shell uname -r)_$(OS_CPUARCH)
else
ifeq ($(OS_ARCH),AIX)
OS_RELEASE := $(shell uname -v).$(shell uname -r)
else
OS_RELEASE := $(shell uname -r)
endif
endif
ifeq ($(OS_ARCH),IRIX64)
OS_ARCH := IRIX
endif
# Virtually all Linux versions are identical.
# Any distinctions are handled in linux.h
ifeq ($(OS_ARCH),Linux)
OS_CONFIG := Linux_All
else
ifeq ($(OS_ARCH),dgux)
OS_CONFIG := dgux
else
OS_CONFIG := $(OS_ARCH)$(OS_OBJTYPE)$(OS_RELEASE)
endif
endif
ASFLAGS =
DEFINES =
ifeq ($(OS_ARCH), WINNT)
INSTALL = nsinstall
CP = cp
else
INSTALL = $(DEPTH)/../../dist/$(OBJDIR)/bin/nsinstall
CP = cp
endif
ifdef BUILD_OPT
OPTIMIZER = -O
DEFINES += -UDEBUG -DNDEBUG -UDEBUG_$(shell whoami)
OBJDIR_TAG = _OPT
else
ifdef USE_MSVC
OPTIMIZER = -Zi
else
OPTIMIZER = -g
endif
DEFINES += -DDEBUG -DDEBUG_$(shell whoami)
OBJDIR_TAG = _DBG
endif
SO_SUFFIX = so
NS_USE_NATIVE = 1
# Java stuff
CLASSDIR = $(DEPTH)/liveconnect/classes
JAVA_CLASSES = $(patsubst %.java,%.class,$(JAVA_SRCS))
TARGETS += $(addprefix $(CLASSDIR)/$(OBJDIR)/$(JARPATH)/, $(JAVA_CLASSES))
JAVAC = $(JDK)/bin/javac
JAVAC_FLAGS = -classpath "$(CLASSPATH)" -d $(CLASSDIR)/$(OBJDIR)
ifeq ($(OS_ARCH), WINNT)
SEP = ;
else
SEP = :
endif
CLASSPATH = $(JDK)/lib/classes.zip$(SEP)$(CLASSDIR)/$(OBJDIR)
include $(DEPTH)/config/$(OS_CONFIG).mk
# Name of the binary code directories
ifdef BUILD_IDG
OBJDIR = $(OS_CONFIG)$(OBJDIR_TAG).OBJD
else
OBJDIR = $(OS_CONFIG)$(OBJDIR_TAG).OBJ
endif
VPATH = $(OBJDIR)
# Automatic make dependencies file
DEPENDENCIES = $(OBJDIR)/.md
LCJAR = js14lc30.jar

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mozilla/js/src/js.msg Normal file
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@@ -0,0 +1,233 @@
/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
*
* The contents of this file are subject to the Netscape Public
* License Version 1.1 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.mozilla.org/NPL/
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express oqr
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* The Original Code is Mozilla Communicator client code, released
* March 31, 1998.
*
* The Initial Developer of the Original Code is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All
* Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the
* terms of the GNU Public License (the "GPL"), in which case the
* provisions of the GPL are applicable instead of those above.
* If you wish to allow use of your version of this file only
* under the terms of the GPL and not to allow others to use your
* version of this file under the NPL, indicate your decision by
* deleting the provisions above and replace them with the notice
* and other provisions required by the GPL. If you do not delete
* the provisions above, a recipient may use your version of this
* file under either the NPL or the GPL.
*/
/*
This is the JavaScript error message file.
The format for each JS error message is:
MSG_DEF(<SYMBOLIC_NAME>, <ERROR_NUMBER>, <ARGUMENT_COUNT>, <EXCEPTION_NAME>,
<FORMAT_STRING>)
where ;
<SYMBOLIC_NAME> is a legal C identifer that will be used in the
JS engine source.
<ERROR_NUMBER> is an unique integral value identifying this error.
<ARGUMENT_COUNT> is an integer literal specifying the total number of
replaceable arguments in the following format string.
<EXCEPTION_NAME> is an exception index from the enum in jsexn.c;
JSEXN_NONE for none. The given exception index will be raised by the
engine when the corresponding error occurs.
<FORMAT_STRING> is a string literal, optionally containing sequences
{X} where X is an integer representing the argument number that will
be replaced with a string value when the error is reported.
e.g.
MSG_DEF(JSMSG_NOT_A_SUBSPECIES, 73, JSEXN_NONE, 2,
"{0} is not a member of the {1} family")
can be used :
JS_ReportErrorNumber(JSMSG_NOT_A_SUBSPECIES, "Rhino", "Monkey");
to report :
"Rhino is not a member of the Monkey family"
*/
MSG_DEF(JSMSG_NOT_AN_ERROR, 0, 0, JSEXN_NONE, "<Error #0 is reserved>")
MSG_DEF(JSMSG_NOT_DEFINED, 1, 1, JSEXN_REFERENCEERR, "{0} is not defined")
MSG_DEF(JSMSG_NO_REG_EXPS, 2, 1, JSEXN_INTERNALERR, "sorry, regular expression are not supported")
MSG_DEF(JSMSG_MORE_ARGS_NEEDED, 3, 3, JSEXN_NONE, "{0} requires more than {1} argument{2}")
MSG_DEF(JSMSG_BAD_CHAR, 4, 1, JSEXN_NONE, "invalid format character {0}")
MSG_DEF(JSMSG_BAD_TYPE, 5, 1, JSEXN_NONE, "unknown type {0}")
MSG_DEF(JSMSG_CANT_LOCK, 6, 0, JSEXN_NONE, "can't lock memory")
MSG_DEF(JSMSG_CANT_UNLOCK, 7, 0, JSEXN_NONE, "can't unlock memory")
MSG_DEF(JSMSG_INCOMPATIBLE_PROTO, 8, 3, JSEXN_TYPEERR, "{0}.prototype.{1} called on incompatible {2}")
MSG_DEF(JSMSG_NO_CONSTRUCTOR, 9, 1, JSEXN_NONE, "{0} has no constructor")
MSG_DEF(JSMSG_CANT_ALIAS, 10, 3, JSEXN_NONE, "can't alias {0} to {1} in class {2}")
MSG_DEF(JSMSG_NO_PROTO, 11, 1, JSEXN_INTERNALERR, "sorry, Array.prototype.{0} is not yet implemented")
MSG_DEF(JSMSG_BAD_SORT_ARG, 12, 0, JSEXN_TYPEERR, "invalid Array.prototype.sort argument")
MSG_DEF(JSMSG_BAD_ATOMIC_NUMBER, 13, 1, JSEXN_INTERNALERR, "internal error: no index for atom {0}")
MSG_DEF(JSMSG_TOO_MANY_LITERALS, 14, 0, JSEXN_INTERNALERR, "too many literals")
MSG_DEF(JSMSG_CANT_WATCH, 15, 1, JSEXN_NONE, "can't watch non-native objects of class {0}")
MSG_DEF(JSMSG_STACK_UNDERFLOW, 16, 2, JSEXN_INTERNALERR, "internal error compiling {0}: stack underflow at pc {1}")
MSG_DEF(JSMSG_NEED_DIET, 17, 1, JSEXN_INTERNALERR, "{0} too large")
MSG_DEF(JSMSG_BAD_CASE, 18, 2, JSEXN_SYNTAXERR, "{0}, line {1}: invalid case expression")
MSG_DEF(JSMSG_READ_ONLY, 19, 1, JSEXN_ERR, "{0} is read-only")
MSG_DEF(JSMSG_BAD_FORMAL, 20, 0, JSEXN_SYNTAXERR, "malformed formal parameter")
MSG_DEF(JSMSG_SAME_FORMAL, 21, 1, JSEXN_NONE, "duplicate formal argument {0}")
MSG_DEF(JSMSG_NOT_FUNCTION, 22, 1, JSEXN_TYPEERR, "{0} is not a function")
MSG_DEF(JSMSG_NOT_CONSTRUCTOR, 23, 1, JSEXN_TYPEERR, "{0} is not a constructor")
MSG_DEF(JSMSG_STACK_OVERFLOW, 24, 1, JSEXN_INTERNALERR, "stack overflow in {0}")
MSG_DEF(JSMSG_NOT_EXPORTED, 25, 1, JSEXN_NONE, "{0} is not exported")
MSG_DEF(JSMSG_OVER_RECURSED, 26, 0, JSEXN_INTERNALERR, "too much recursion")
MSG_DEF(JSMSG_IN_NOT_OBJECT, 27, 0, JSEXN_ERR, "target of 'in' operator must be an object")
MSG_DEF(JSMSG_BAD_NEW_RESULT, 28, 1, JSEXN_NONE, "invalid new expression result {0}")
MSG_DEF(JSMSG_BAD_SHARP_DEF, 29, 1, JSEXN_ERR, "invalid sharp variable definition #{0}=")
MSG_DEF(JSMSG_BAD_SHARP_USE, 30, 1, JSEXN_ERR, "invalid sharp variable use #{0}#")
MSG_DEF(JSMSG_BAD_INSTANCEOF_RHS, 31, 1, JSEXN_ERR, "invalid instanceof operand {0}")
MSG_DEF(JSMSG_BAD_BYTECODE, 32, 1, JSEXN_INTERNALERR, "unimplemented JavaScript bytecode {0}")
MSG_DEF(JSMSG_BAD_RADIX, 33, 1, JSEXN_ERR, "illegal radix {0}")
MSG_DEF(JSMSG_NAN, 34, 1, JSEXN_ERR, "{0} is not a number")
MSG_DEF(JSMSG_CANT_CONVERT, 35, 1, JSEXN_NONE, "can't convert {0} to an integer")
MSG_DEF(JSMSG_CYCLIC_VALUE, 36, 1, JSEXN_ERR, "cyclic {0} value")
MSG_DEF(JSMSG_PERMANENT, 37, 1, JSEXN_ERR, "{0} is permanent")
MSG_DEF(JSMSG_CANT_CONVERT_TO, 38, 2, JSEXN_TYPEERR, "can't convert {0} to {1}")
MSG_DEF(JSMSG_NO_PROPERTIES, 39, 1, JSEXN_TYPEERR, "{0} has no properties")
MSG_DEF(JSMSG_CANT_FIND_CLASS, 40, 1, JSEXN_NONE, "can't find class id {0}")
MSG_DEF(JSMSG_CANT_XDR_CLASS, 41, 1, JSEXN_NONE, "can't XDR class {0}")
MSG_DEF(JSMSG_BYTECODE_TOO_BIG, 42, 2, JSEXN_INTERNALERR, "bytecode {0} too large (limit {1})")
MSG_DEF(JSMSG_UNKNOWN_FORMAT, 43, 1, JSEXN_INTERNALERR, "unknown bytecode format {0}")
MSG_DEF(JSMSG_TOO_MANY_CON_ARGS, 44, 0, JSEXN_SYNTAXERR, "too many constructor arguments")
MSG_DEF(JSMSG_TOO_MANY_FUN_ARGS, 45, 0, JSEXN_SYNTAXERR, "too many function arguments")
MSG_DEF(JSMSG_BAD_QUANTIFIER, 46, 1, JSEXN_SYNTAXERR, "invalid quantifier {0}")
MSG_DEF(JSMSG_MIN_TOO_BIG, 47, 1, JSEXN_SYNTAXERR, "overlarge minimum {0}")
MSG_DEF(JSMSG_MAX_TOO_BIG, 48, 1, JSEXN_SYNTAXERR, "overlarge maximum {0}")
MSG_DEF(JSMSG_OUT_OF_ORDER, 49, 1, JSEXN_SYNTAXERR, "maximum {0} less than minimum")
MSG_DEF(JSMSG_ZERO_QUANTIFIER, 50, 1, JSEXN_SYNTAXERR, "zero quantifier {0}")
MSG_DEF(JSMSG_UNTERM_QUANTIFIER, 51, 1, JSEXN_SYNTAXERR, "unterminated quantifier {0}")
MSG_DEF(JSMSG_EMPTY_BEFORE_STAR, 52, 0, JSEXN_SYNTAXERR, "regular expression before * could be empty")
MSG_DEF(JSMSG_EMPTY_BEFORE_PLUS, 53, 0, JSEXN_SYNTAXERR, "regular expression before + could be empty")
MSG_DEF(JSMSG_MISSING_PAREN, 54, 1, JSEXN_SYNTAXERR, "unterminated parenthetical {0}")
MSG_DEF(JSMSG_UNTERM_CLASS, 55, 1, JSEXN_SYNTAXERR, "unterminated character class {0}")
MSG_DEF(JSMSG_TRAILING_SLASH, 56, 0, JSEXN_SYNTAXERR, "trailing \\ in regular expression")
MSG_DEF(JSMSG_BAD_CLASS_RANGE, 57, 0, JSEXN_SYNTAXERR, "invalid range in character class")
MSG_DEF(JSMSG_BAD_FLAG, 58, 1, JSEXN_SYNTAXERR, "invalid regular expression flag {0}")
MSG_DEF(JSMSG_NO_INPUT, 59, 3, JSEXN_SYNTAXERR, "no input for /{0}/{1}{2}")
MSG_DEF(JSMSG_CANT_OPEN, 60, 2, JSEXN_NONE, "can't open {0}: {1}")
MSG_DEF(JSMSG_BAD_STRING_MASK, 61, 1, JSEXN_ERR, "invalid string escape mask {0}")
MSG_DEF(JSMSG_NO_STRING_PROTO, 62, 1, JSEXN_INTERNALERR, "sorry, String.prototype.{0} is not yet implemented")
MSG_DEF(JSMSG_END_OF_DATA, 63, 0, JSEXN_NONE, "unexpected end of data")
MSG_DEF(JSMSG_SEEK_BEYOND_START, 64, 0, JSEXN_NONE, "illegal seek beyond start")
MSG_DEF(JSMSG_SEEK_BEYOND_END, 65, 0, JSEXN_NONE, "illegal seek beyond end")
MSG_DEF(JSMSG_END_SEEK, 66, 0, JSEXN_NONE, "illegal end-based seek")
MSG_DEF(JSMSG_WHITHER_WHENCE, 67, 1, JSEXN_NONE, "unknown seek whence: {0}")
MSG_DEF(JSMSG_BAD_JVAL_TYPE, 68, 1, JSEXN_NONE, "unknown jsval type {0} for XDR")
MSG_DEF(JSMSG_PAREN_BEFORE_FORMAL, 69, 0, JSEXN_SYNTAXERR, "missing ( before formal parameters")
MSG_DEF(JSMSG_MISSING_FORMAL, 70, 0, JSEXN_SYNTAXERR, "missing formal parameter")
MSG_DEF(JSMSG_PAREN_AFTER_FORMAL, 71, 0, JSEXN_SYNTAXERR, "missing ) after formal parameters")
MSG_DEF(JSMSG_CURLY_BEFORE_BODY, 72, 0, JSEXN_SYNTAXERR, "missing { before function body")
MSG_DEF(JSMSG_CURLY_AFTER_BODY, 73, 0, JSEXN_SYNTAXERR, "missing } after function body")
MSG_DEF(JSMSG_PAREN_BEFORE_COND, 74, 0, JSEXN_SYNTAXERR, "missing ( before condition")
MSG_DEF(JSMSG_PAREN_AFTER_COND, 75, 0, JSEXN_SYNTAXERR, "missing ) after condition")
MSG_DEF(JSMSG_NO_IMPORT_NAME, 76, 0, JSEXN_SYNTAXERR, "missing name in import statement")
MSG_DEF(JSMSG_NAME_AFTER_DOT, 77, 0, JSEXN_SYNTAXERR, "missing name after . operator")
MSG_DEF(JSMSG_BRACKET_IN_INDEX, 78, 0, JSEXN_SYNTAXERR, "missing ] in index expression")
MSG_DEF(JSMSG_NO_EXPORT_NAME, 79, 0, JSEXN_SYNTAXERR, "missing name in export statement")
MSG_DEF(JSMSG_PAREN_BEFORE_SWITCH, 80, 0, JSEXN_SYNTAXERR, "missing ( before switch expression")
MSG_DEF(JSMSG_PAREN_AFTER_SWITCH, 81, 0, JSEXN_SYNTAXERR, "missing ) after switch expression")
MSG_DEF(JSMSG_CURLY_BEFORE_SWITCH, 82, 0, JSEXN_SYNTAXERR, "missing { before switch body")
MSG_DEF(JSMSG_COLON_AFTER_CASE, 83, 0, JSEXN_SYNTAXERR, "missing : after case label")
MSG_DEF(JSMSG_WHILE_AFTER_DO, 84, 0, JSEXN_SYNTAXERR, "missing while after do-loop body")
MSG_DEF(JSMSG_PAREN_AFTER_FOR, 85, 0, JSEXN_SYNTAXERR, "missing ( after for")
MSG_DEF(JSMSG_SEMI_AFTER_FOR_INIT, 86, 0, JSEXN_SYNTAXERR, "missing ; after for-loop initializer")
MSG_DEF(JSMSG_SEMI_AFTER_FOR_COND, 87, 0, JSEXN_SYNTAXERR, "missing ; after for-loop condition")
MSG_DEF(JSMSG_PAREN_AFTER_FOR_CTRL, 88, 0, JSEXN_SYNTAXERR, "missing ) after for-loop control")
MSG_DEF(JSMSG_CURLY_BEFORE_TRY, 89, 0, JSEXN_SYNTAXERR, "missing { before try block")
MSG_DEF(JSMSG_CURLY_AFTER_TRY, 90, 0, JSEXN_SYNTAXERR, "missing } after try block")
MSG_DEF(JSMSG_PAREN_BEFORE_CATCH, 91, 0, JSEXN_SYNTAXERR, "missing ( before catch")
MSG_DEF(JSMSG_CATCH_IDENTIFIER, 92, 0, JSEXN_SYNTAXERR, "missing identifier in catch")
MSG_DEF(JSMSG_PAREN_AFTER_CATCH, 93, 0, JSEXN_SYNTAXERR, "missing ) after catch")
MSG_DEF(JSMSG_CURLY_BEFORE_CATCH, 94, 0, JSEXN_SYNTAXERR, "missing { before catch block")
MSG_DEF(JSMSG_CURLY_AFTER_CATCH, 95, 0, JSEXN_SYNTAXERR, "missing } after catch block")
MSG_DEF(JSMSG_CURLY_BEFORE_FINALLY, 96, 0, JSEXN_SYNTAXERR, "missing { before finally block")
MSG_DEF(JSMSG_CURLY_AFTER_FINALLY, 97, 0, JSEXN_SYNTAXERR, "missing } after finally block")
MSG_DEF(JSMSG_CATCH_OR_FINALLY, 98, 0, JSEXN_SYNTAXERR, "missing catch or finally after try")
MSG_DEF(JSMSG_PAREN_BEFORE_WITH, 99, 0, JSEXN_SYNTAXERR, "missing ( before with-statement object")
MSG_DEF(JSMSG_PAREN_AFTER_WITH, 100, 0, JSEXN_SYNTAXERR, "missing ) after with-statement object")
MSG_DEF(JSMSG_CURLY_IN_COMPOUND, 101, 0, JSEXN_SYNTAXERR, "missing } in compound statement")
MSG_DEF(JSMSG_NO_VARIABLE_NAME, 102, 0, JSEXN_SYNTAXERR, "missing variable name")
MSG_DEF(JSMSG_COLON_IN_COND, 103, 0, JSEXN_SYNTAXERR, "missing : in conditional expression")
MSG_DEF(JSMSG_PAREN_AFTER_ARGS, 104, 0, JSEXN_SYNTAXERR, "missing ) after argument list")
MSG_DEF(JSMSG_BRACKET_AFTER_LIST, 105, 0, JSEXN_SYNTAXERR, "missing ] after element list")
MSG_DEF(JSMSG_COLON_AFTER_ID, 106, 0, JSEXN_SYNTAXERR, "missing : after property id")
MSG_DEF(JSMSG_CURLY_AFTER_LIST, 107, 0, JSEXN_SYNTAXERR, "missing } after property list")
MSG_DEF(JSMSG_PAREN_IN_PAREN, 108, 0, JSEXN_SYNTAXERR, "missing ) in parenthetical")
MSG_DEF(JSMSG_SEMI_BEFORE_STMNT, 109, 0, JSEXN_SYNTAXERR, "missing ; before statement")
MSG_DEF(JSMSG_NO_RETURN_VALUE, 110, 1, JSEXN_TYPEERR, "function {0} does not always return a value")
MSG_DEF(JSMSG_DUPLICATE_FORMAL, 111, 1, JSEXN_TYPEERR, "duplicate formal argument {0}")
MSG_DEF(JSMSG_EQUAL_AS_ASSIGN, 112, 1, JSEXN_NONE, "test for equality (==) mistyped as assignment (=)?{0}")
MSG_DEF(JSMSG_BAD_IMPORT, 113, 0, JSEXN_SYNTAXERR, "invalid import expression")
MSG_DEF(JSMSG_TOO_MANY_DEFAULTS, 114, 0, JSEXN_SYNTAXERR, "more than one switch default")
MSG_DEF(JSMSG_TOO_MANY_CASES, 115, 0, JSEXN_INTERNALERR, "too many switch cases")
MSG_DEF(JSMSG_BAD_SWITCH, 116, 0, JSEXN_SYNTAXERR, "invalid switch statement")
MSG_DEF(JSMSG_BAD_FOR_LEFTSIDE, 117, 0, JSEXN_SYNTAXERR, "invalid for/in left-hand side")
MSG_DEF(JSMSG_CATCH_AFTER_GENERAL, 118, 0, JSEXN_SYNTAXERR, "catch after unconditional catch")
MSG_DEF(JSMSG_CATCH_WITHOUT_TRY, 119, 0, JSEXN_SYNTAXERR, "catch without try")
MSG_DEF(JSMSG_FINALLY_WITHOUT_TRY, 120, 0, JSEXN_SYNTAXERR, "finally without try")
MSG_DEF(JSMSG_LABEL_NOT_FOUND, 121, 0, JSEXN_SYNTAXERR, "label not found")
MSG_DEF(JSMSG_TOUGH_BREAK, 122, 0, JSEXN_SYNTAXERR, "invalid break")
MSG_DEF(JSMSG_BAD_CONTINUE, 123, 0, JSEXN_SYNTAXERR, "invalid continue")
MSG_DEF(JSMSG_BAD_RETURN, 124, 0, JSEXN_SYNTAXERR, "invalid return")
MSG_DEF(JSMSG_BAD_LABEL, 125, 0, JSEXN_SYNTAXERR, "invalid label")
MSG_DEF(JSMSG_DUPLICATE_LABEL, 126, 0, JSEXN_SYNTAXERR, "duplicate label")
MSG_DEF(JSMSG_VAR_HIDES_ARG, 127, 1, JSEXN_TYPEERR, "variable {0} hides argument")
MSG_DEF(JSMSG_BAD_VAR_INIT, 128, 0, JSEXN_SYNTAXERR, "invalid variable initialization")
MSG_DEF(JSMSG_BAD_LEFTSIDE_OF_ASS, 129, 0, JSEXN_SYNTAXERR, "invalid assignment left-hand side")
MSG_DEF(JSMSG_BAD_OPERAND, 130, 1, JSEXN_SYNTAXERR, "invalid {0} operand")
MSG_DEF(JSMSG_BAD_PROP_ID, 131, 0, JSEXN_SYNTAXERR, "invalid property id")
MSG_DEF(JSMSG_RESERVED_ID, 132, 1, JSEXN_SYNTAXERR, "{0} is a reserved identifier")
MSG_DEF(JSMSG_SYNTAX_ERROR, 133, 0, JSEXN_SYNTAXERR, "syntax error")
MSG_DEF(JSMSG_BAD_SHARP_VAR_DEF, 134, 0, JSEXN_SYNTAXERR, "invalid sharp variable definition")
MSG_DEF(JSMSG_BAD_PROTOTYPE, 135, 1, JSEXN_ERR, "'prototype' property of {0} is not an object")
MSG_DEF(JSMSG_MISSING_EXPONENT, 136, 0, JSEXN_SYNTAXERR, "missing exponent")
MSG_DEF(JSMSG_OUT_OF_MEMORY, 137, 0, JSEXN_ERR, "out of memory")
MSG_DEF(JSMSG_UNTERMINATED_STRING, 138, 0, JSEXN_SYNTAXERR, "unterminated string literal")
MSG_DEF(JSMSG_NESTED_COMMENT, 139, 0, JSEXN_SYNTAXERR, "nested comment")
MSG_DEF(JSMSG_UNTERMINATED_COMMENT, 140, 0, JSEXN_SYNTAXERR, "unterminated comment")
MSG_DEF(JSMSG_UNTERMINATED_REGEXP, 141, 0, JSEXN_SYNTAXERR, "unterminated regular expression literal")
MSG_DEF(JSMSG_BAD_REGEXP_FLAG, 142, 0, JSEXN_SYNTAXERR, "invalid flag after regular expression")
MSG_DEF(JSMSG_SHARPVAR_TOO_BIG, 143, 0, JSEXN_SYNTAXERR, "overlarge sharp variable number")
MSG_DEF(JSMSG_ILLEGAL_CHARACTER, 144, 0, JSEXN_SYNTAXERR, "illegal character")
MSG_DEF(JSMSG_BAD_OCTAL, 145, 1, JSEXN_NONE, "{0} is not a legal ECMA-262 numeric constant")
MSG_DEF(JSMSG_BAD_INDIRECT_CALL, 146, 1, JSEXN_EVALERR, "function {0} must be called directly, and not by way of a function of another name.")
MSG_DEF(JSMSG_UNCAUGHT_EXCEPTION, 147, 1, JSEXN_NONE, "uncaught exception: {0}")
MSG_DEF(JSMSG_INVALID_BACKREF, 148, 0, JSEXN_SYNTAXERR, "non-octal digit in an escape sequence that doesn't match a back-reference")
MSG_DEF(JSMSG_BAD_BACKREF, 149, 0, JSEXN_SYNTAXERR, "back-reference exceeds number of capturing parentheses")
MSG_DEF(JSMSG_PRECISION_RANGE, 150, 1, JSEXN_RANGEERR, "precision {0} out of range")
MSG_DEF(JSMSG_BAD_GETTER_OR_SETTER, 151, 1, JSEXN_SYNTAXERR, "invalid {0} usage")
MSG_DEF(JSMSG_BAD_ARRAY_LENGTH, 152, 0, JSEXN_RANGEERR, "invalid array length")
MSG_DEF(JSMSG_CANT_DESCRIBE_PROPS, 153, 1, JSEXN_NONE, "can't describe non-native properties of class {0}")
MSG_DEF(JSMSG_BAD_APPLY_ARGS, 154, 0, JSEXN_TYPEERR, "second argument to Function.prototype.apply must be an array")
MSG_DEF(JSMSG_REDECLARED_VAR, 155, 2, JSEXN_TYPEERR, "redeclaration of {0} {1}")
MSG_DEF(JSMSG_UNDECLARED_VAR, 156, 1, JSEXN_TYPEERR, "assignment to undeclared variable {0}")
MSG_DEF(JSMSG_ANON_NO_RETURN_VALUE, 157, 0, JSEXN_TYPEERR, "anonymous function does not always return a value")
MSG_DEF(JSMSG_DEPRECATED_USAGE, 158, 1, JSEXN_REFERENCEERR, "deprecated {0} usage")

79
mozilla/js/src/js3240.rc Normal file
View File

@@ -0,0 +1,79 @@
//Microsoft Developer Studio generated resource script.
//
#include "resource.h"
#define APSTUDIO_READONLY_SYMBOLS
/////////////////////////////////////////////////////////////////////////////
//
// Generated from the TEXTINCLUDE 2 resource.
//
#include "winver.h"
/////////////////////////////////////////////////////////////////////////////
#undef APSTUDIO_READONLY_SYMBOLS
/////////////////////////////////////////////////////////////////////////////
//
// Version
//
VS_VERSION_INFO VERSIONINFO
FILEVERSION 4,0,0,0
PRODUCTVERSION 4,0,0,0
FILEFLAGSMASK 0x3fL
#ifdef _DEBUG
FILEFLAGS 0x1L
#else
FILEFLAGS 0x0L
#endif
FILEOS 0x10004L
FILETYPE 0x2L
FILESUBTYPE 0x0L
BEGIN
BLOCK "StringFileInfo"
BEGIN
BLOCK "040904e4"
BEGIN
VALUE "CompanyName", "Netscape Communications Corporation\0"
VALUE "FileDescription", "Netscape 32-bit JavaScript Module\0"
VALUE "FileVersion", "4.0\0"
VALUE "InternalName", "JS3240\0"
VALUE "LegalCopyright", "Copyright Netscape Communications. 1994-96\0"
VALUE "LegalTrademarks", "Netscape, Mozilla\0"
VALUE "OriginalFilename", "js3240.dll\0"
VALUE "ProductName", "NETSCAPE\0"
VALUE "ProductVersion", "4.0\0"
END
END
BLOCK "VarFileInfo"
BEGIN
VALUE "Translation", 0x409, 1252
END
END
#ifdef APSTUDIO_INVOKED
/////////////////////////////////////////////////////////////////////////////
//
// TEXTINCLUDE
//
1 TEXTINCLUDE DISCARDABLE
BEGIN
"resource.h\0"
END
2 TEXTINCLUDE DISCARDABLE
BEGIN
"#include ""winver.h""\r\n"
"\0"
END
3 TEXTINCLUDE DISCARDABLE
BEGIN
"\r\n"
"\0"
END
#endif // APSTUDIO_INVOKED
/////////////////////////////////////////////////////////////////////////////

639
mozilla/js/src/jsOS240.def Normal file
View File

@@ -0,0 +1,639 @@
; The contents of this file are subject to the Netscape Public
; License Version 1.1 (the "License"); you may not use this file
; except in compliance with the License. You may obtain a copy of
; the License at http://www.mozilla.org/NPL/
;
; Software distributed under the License is distributed on an "AS
; IS" basis, WITHOUT WARRANTY OF ANY KIND, either express oqr
; implied. See the License for the specific language governing
; rights and limitations under the License.
;
; The Original Code is Mozilla Communicator client code, released
; March 31, 1998.
;
; The Initial Developer of the Original Code is Netscape
; Communications Corporation. Portions created by Netscape are
; Copyright (C) 1998 Netscape Communications Corporation. All
; Rights Reserved.
;
; Contributor(s):
;
; Alternatively, the contents of this file may be used under the
; terms of the GNU Public License (the "GPL"), in which case the
; provisions of the GPL are applicable instead of those above.
; If you wish to allow use of your version of this file only
; under the terms of the GPL and not to allow others to use your
; version of this file under the NPL, indicate your decision by
; deleting the provisions above and replace them with the notice
; and other provisions required by the GPL. If you do not delete
; the provisions above, a recipient may use your version of this
; file under either the NPL or the GPL.
LIBRARY JS3240 INITINSTANCE TERMINSTANCE
PROTMODE
DESCRIPTION 'Netscape OS/2 JavaScript Library'
CODE LOADONCALL MOVEABLE DISCARDABLE
DATA PRELOAD MOVEABLE MULTIPLE NONSHARED
EXPORTS
;====================== win16 exports these at least... ===========
; JS_Init = JS_Init @2
; JS_Finish = JS_Finish @3
; JS_GetNaNValue
; JS_GetNegativeInfinityValue
; JS_GetPositiveInfinityValue
; JS_GetEmptyStringValue
; JS_ConvertValue
; JS_ValueToObject
; JS_ValueToFunction
; JS_ValueToString
; JS_ValueToNumber
; JS_ValueToBoolean
; JS_TypeOfValue
; JS_GetTypeName
; JS_Lock
; JS_Unlock
; JS_NewContext
; JS_DestroyContext
; JS_ContextIterator
; JS_GetGlobalObject
; JS_SetGlobalObject
; JS_InitStandardClasses
;; JS_GetStaticLink
; JS_malloc
; JS_realloc
; JS_free
; JS_strdup
; JS_NewDouble
; JS_NewDoubleValue
; JS_AddRoot
; JS_RemoveRoot
; JS_LockGCThing
; JS_UnlockGCThing
; JS_GC
; JS_PropertyStub
; JS_EnumerateStub
; JS_ResolveStub
; JS_ConvertStub
; JS_FinalizeStub
; JS_InitClass
; JS_GetClass
; JS_InstanceOf
; JS_GetPrivate
; JS_SetPrivate
; JS_GetInstancePrivate
; JS_GetPrototype
; JS_GetParent
; JS_SetParent
; JS_GetConstructor
; JS_NewObject
; JS_DefineObject
; JS_DefineConstDoubles
; JS_DefineProperties
; JS_DefineProperty
; JS_DefinePropertyWithTinyId
; JS_AliasProperty
; JS_LookupProperty
; JS_GetProperty
; JS_SetProperty
; JS_DeleteProperty
; JS_NewArrayObject
; JS_DefineElement
; JS_AliasElement
; JS_LookupElement
; JS_GetElement
; JS_SetElement
; JS_DeleteElement
; JS_ClearScope
; JS_NewFunction
; JS_GetFunctionObject
; JS_GetFunctionName
; JS_DefineFunctions
; JS_DefineFunction
; JS_CompileScript
; JS_DestroyScript
; JS_CompileFunction
; JS_DecompileScript
; JS_DecompileFunction
; JS_DecompileFunctionBody
; JS_ExecuteScript
; JS_EvaluateScript
; JS_CallFunction
; JS_CallFunctionName
; JS_CallFunctionValue
; JS_SetBranchCallback
; JS_IsRunning
; JS_NewString
; JS_NewStringCopyN
; JS_NewStringCopyZ
; JS_InternString
; JS_GetStringBytes
; JS_GetStringLength
; JS_CompareStrings
; JS_ReportError
; JS_ReportOutOfMemory
; JS_SetErrorReporter
; JS_NewRegExpObject
; JS_SetRegExpInput
; JS_ClearRegExpStatics
;=================================================
;00001:jsstr (OFFSET:0x00002e17, SIZE:0x0000ae17):
; - Public Definitions:
; js_EmptySubString
; js_CompareStrings
; js_HashString
; js_ValueToString
; js_StringToObject
; js_FinalizeString
; js_NewStringCopyZ
; js_NewString
; js_InitStringClass
; js_NewStringCopyN
; js_BoyerMooreHorspool
;
;
;00002:jsscript (OFFSET:0x0000dc2e, SIZE:0x00003abb):
; - Public Definitions:
; js_LineNumberToPC
; js_PCToLineNumber
; js_GetSrcNote
; js_DestroyScript
; js_NewScript
;
;
;00003:jsscope (OFFSET:0x000116e9, SIZE:0x00004f82):
; - Public Definitions:
; js_hash_scope_ops
; js_list_scope_ops
; js_DestroyProperty
; js_NewProperty
; js_IdToValue
; js_HashValue
; js_DestroyScope
; js_MutateScope
; js_DropScope
; js_HoldScope
; js_NewScope
; js_GetMutableScope
; js_HoldProperty
; js_DropProperty
;
;
;00004:jsscan (OFFSET:0x0001666b, SIZE:0x00008890):
; - Public Definitions:
; js_MatchToken
; js_FlushNewlines
; js_PeekTokenSameLine
; js_UngetToken
; js_GetToken
; js_PeekToken
; js_ReportCompileError
js_CloseTokenStream
js_NewBufferTokenStream
; js_NewTokenStream
; js_InitScanner
;
;
;00005:jsregexp (OFFSET:0x0001eefb, SIZE:0x0000eee4):
; - Public Definitions:
; js_RegExpClass
; reopsize
; js_NewRegExpObject
; js_InitRegExpClass
; js_FreeRegExpStatics
; js_InitRegExpStatics
; js_ExecuteRegExp
; js_NewRegExpOpt
; js_DestroyRegExp
; js_NewRegExp
;
;
;00006:jsparse (OFFSET:0x0002dddf, SIZE:0x00010b71):
; - Public Definitions:
; js_ParseFunctionBody
js_Parse
;
;
;00007:jsopcode (OFFSET:0x0003e950, SIZE:0x0000d362):
; - Public Definitions:
; js_EscapeMap
; js_NumCodeSpecs
; js_CodeSpec
; js_incop_str
; js_true_str
; js_false_str
; js_this_str
; js_null_str
; js_void_str
; js_typeof_str
; js_delete_str
; js_new_str
; js_ValueToSource
; js_DecompileScript
; js_DecompileCode
; js_DecompileFunction
; js_puts
; js_printf
; js_GetPrinterOutput
; js_DestroyPrinter
; js_NewPrinter
; js_EscapeString
; js_Disassemble1
; js_Disassemble
;
;00008:jsobj (OFFSET:0x0004bcb2, SIZE:0x000090a4):
; - Public Definitions:
; js_WithClass
; js_ObjectClass
; js_TryValueOf
; js_ValueToNonNullObject
; js_TryMethod
; js_ObjectToString
; js_SetClassPrototype
; js_DeleteProperty2
; js_DeleteProperty
; js_SetProperty
; js_GetProperty
; js_FindVariableScope
; js_FindVariable
; js_FindProperty
; js_LookupProperty
; js_DefineProperty
; js_FreeSlot
; js_AllocSlot
; js_FinalizeObject
; js_GetClassPrototype
; js_NewObject
; js_InitObjectClass
; js_ValueToObject
; js_obj_toString
; js_SetSlot
; js_GetSlot
;
;
;00009:jsnum (OFFSET:0x00054d56, SIZE:0x00004f29):
; - Public Definitions:
; js_ValueToInt32
; js_NumberToObject
; js_FinalizeDouble
; js_InitNumberClass
; js_NumberToString
; js_NewDoubleValue
; js_NewDouble
; js_ValueToNumber
;
;
;00010:jsmath (OFFSET:0x00059c7f, SIZE:0x000054b6):
; - Public Definitions:
; js_InitMathClass
;
;
;00011:jsjava (OFFSET:0x0005f135, SIZE:0x00022aad):
; - Public Definitions:
; js_Hooks
; MojaSrcLog
; finalizeTask
JSJ_FindCurrentJSContext
; JSJ_GetPrincipals
JSJ_IsSafeMethod
JSJ_InitContext
JSJ_Init
js_JSErrorToJException
js_JavaErrorReporter
js_RemoveReflection
js_ReflectJObjectToJSObject
js_convertJObjectToJSValue
js_convertJSValueToJObject
js_ReflectJSObjectToJObject
; js_ReflectJClassToJSObject
JSJ_ExitJS
JSJ_EnterJS
JSJ_CurrentContext
JSJ_IsEnabled
;added in GA code - DSR70297
JSJ_Finish
JSJ_IsCalledFromJava
js_GetJSPrincipalsFromJavaCaller
;
;
;00012:jsinterp (OFFSET:0x00081be2, SIZE:0x00012274):
; - Public Definitions:
; js_Call
; js_Interpret
; js_SetLocalVariable
; js_GetLocalVariable
; js_SetArgument
; js_GetArgument
; js_FlushPropertyCacheByProp
; js_FlushPropertyCache
;
;
;00013:jsgc (OFFSET:0x00093e56, SIZE:0x00004f8d):
; - Public Definitions:
; js_ForceGC
; js_UnlockGCThing
; js_LockGCThing
; js_GC
; js_AllocGCThing
; js_RemoveRoot
; js_AddRoot
; js_FinishGC
; js_InitGC
;
;
;00014:jsfun (OFFSET:0x00098de3, SIZE:0x0000977c):
; - Public Definitions:
; js_FunctionClass
; js_ClosureClass
; js_CallClass
; js_DefineFunction
; js_NewFunction
; js_InitCallAndClosureClasses
; js_InitFunctionClass
; js_ValueToFunction
; js_SetCallVariable
; js_GetCallVariable
; js_PutCallObject
; js_GetCallObject
;
;
;00015:jsemit (OFFSET:0x000a255f, SIZE:0x000077be):
; - Public Definitions:
; js_SrcNoteName
; js_SrcNoteArity
js_FinishTakingSrcNotes
; js_MoveSrcNotes
; js_GetSrcNoteOffset
; js_BumpSrcNoteDelta
; js_NewSrcNote3
; js_NewSrcNote2
; js_PopStatement
; js_EmitContinue
; js_EmitBreak
; js_SetSrcNoteOffset
; js_NewSrcNote
; js_PushStatement
; js_MoveCode
; js_SetJumpOffset
; js_Emit3
; js_Emit2
; js_Emit1
; js_UpdateDepth
; js_SrcNoteLength
; js_CancelLastOpcode
js_InitCodeGenerator
;
;
;00016:jsdbgapi (OFFSET:0x000a9d1d, SIZE:0x000057db):
; - Public Definitions:
; js_watchpoint_list
; js_trap_list
; JS_SetAnnotationInFrame
; JS_GetAnnotationFromFrame
; JS_GetJSPrincipalArrayFromFrame
; JS_NextJSFrame
; JS_InitJSFrameIterator
JS_LineNumberToPC
JS_PCToLineNumber
JS_ClearAllWatchPoints
JS_ClearWatchPoint
JS_SetWatchPoint
JS_HandleTrap
JS_ClearAllTraps
JS_ClearScriptTraps
JS_ClearTrap
JS_GetTrapOpcode
JS_SetTrap
;DSR070297 - added in GA code
JS_FrameIterator
JS_GetFrameAnnotation
JS_GetFramePrincipalArray
JS_GetFrameScript
JS_GetScriptFilename
JS_SetFrameAnnotation
JS_GetFramePC
JS_GetFunctionScript
;
;
;00017:jsdate (OFFSET:0x000af4f8, SIZE:0x00009a8e):
; - Public Definitions:
js_DateGetSeconds
js_DateGetMinutes
js_DateGetHours
js_DateGetDate
js_DateGetMonth
js_DateGetYear
js_NewDateObject
; js_InitDateClass
;
;
;00018:jscntxt (OFFSET:0x000b8f86, SIZE:0x00003732):
; - Public Definitions:
; js_InterpreterHooks
; js_ReportIsNotDefined
; js_ReportErrorAgain
; js_ReportErrorVA
; js_ContextIterator
; js_DestroyContext
; js_NewContext
; js_SetInterpreterHooks
;
;
;00019:jsbool (OFFSET:0x000bc6b8, SIZE:0x00003375):
; - Public Definitions:
; js_BooleanToString
; js_BooleanToObject
; js_InitBooleanClass
; js_ValueToBoolean
;
;
;00020:jsatom (OFFSET:0x000bfa2d, SIZE:0x000058d0):
; - Public Definitions:
; js_valueOf_str
; js_toString_str
; js_length_str
; js_eval_str
; js_constructor_str
; js_class_prototype_str
; js_assign_str
; js_anonymous_str
; js_Object_str
; js_Array_str
; js_type_str
; js_DropUnmappedAtoms
js_FreeAtomMap
js_InitAtomMap
; js_GetAtom
; js_DropAtom
; js_IndexAtom
; js_ValueToStringAtom
; js_AtomizeString
; js_AtomizeDouble
; js_AtomizeInt
; js_AtomizeBoolean
; js_AtomizeObject
; js_HoldAtom
; js_MarkAtomState
; js_FreeAtomState
; js_Atomize
; js_InitAtomState
;
;
;00021:jsarray (OFFSET:0x000c52fd, SIZE:0x00007c86):
; - Public Definitions:
; js_ArrayClass
; js_SetArrayLength
; js_GetArrayLength
; js_InitArrayClass
; js_NewArrayObject
; PR_qsort
;
;
;00022:jsapi (OFFSET:0x000ccf83, SIZE:0x0000de8c):
; - Public Definitions:
JS_ClearRegExpStatics
JS_SetRegExpInput
JS_NewRegExpObject
JS_SetErrorReporter
JS_CompareStrings
JS_GetStringLength
JS_GetStringBytes
JS_InternString
JS_NewStringCopyZ
JS_NewStringCopyN
JS_NewString
JS_IsRunning
JS_SetBranchCallback
JS_CallFunctionValue
JS_CallFunctionName
JS_CallFunction
JS_EvaluateScriptForPrincipals
JS_EvaluateScript
JS_ExecuteScript
JS_DecompileFunctionBody
JS_DecompileFunction
JS_DecompileScript
JS_CompileFunctionForPrincipals
JS_CompileFunction
JS_DestroyScript
JS_CompileScriptForPrincipals
JS_CompileScript
JS_DefineFunction
JS_GetFunctionName
JS_GetFunctionObject
JS_NewFunction
JS_ClearScope
JS_DeleteElement
JS_SetElement
JS_GetElement
JS_LookupElement
JS_AliasElement
JS_DefineElement
JS_SetArrayLength
JS_GetArrayLength
JS_NewArrayObject
JS_DeleteProperty
JS_SetProperty
JS_GetProperty
JS_LookupProperty
JS_AliasProperty
JS_DefinePropertyWithTinyId
JS_DefineProperty
JS_DefineConstDoubles
JS_DefineObject
JS_NewObject
JS_GetConstructor
JS_SetParent
JS_GetParent
JS_SetPrototype
JS_GetPrototype
JS_GetInstancePrivate
JS_SetPrivate
JS_GetPrivate
JS_InstanceOf
JS_GetClass
JS_DefineFunctions
JS_DefineProperties
JS_InitClass
JS_FinalizeStub
JS_ConvertStub
JS_ResolveStub
JS_EnumerateStub
JS_PropertyStub
JS_GC
JS_UnlockGCThing
JS_LockGCThing
JS_RemoveRoot
JS_AddRoot
JS_NewDoubleValue
JS_NewDouble
JS_strdup
JS_free
JS_realloc
JS_ReportOutOfMemory
JS_malloc
JS_GetScopeChain
JS_InitStandardClasses
JS_SetGlobalObject
JS_GetGlobalObject
JS_SetVersion
JS_GetVersion
JS_ContextIterator
JS_GetTaskState
JS_DestroyContext
JS_NewContext
JS_Unlock
JS_Lock
JS_Finish
JS_Init
JS_GetTypeName
JS_TypeOfValue
JS_ValueToBoolean
JS_ValueToInt32
JS_ValueToNumber
JS_ValueToString
JS_ValueToFunction
JS_ValueToObject
JS_ReportError
JS_ConvertValue
JS_GetEmptyStringValue
JS_GetPositiveInfinityValue
JS_GetNegativeInfinityValue
JS_GetNaNValue
;DSR062897 - added for GA code
JS_MaybeGC
JS_GetScriptPrincipals
JS_IsAssigning
JS_SetCharSetInfo
;
;
;00023:prmjtime (OFFSET:0x000dae0f, SIZE:0x00008986):
; - Public Definitions:
PRMJ_FormatTimeUSEnglish
PRMJ_gmtime
PRMJ_FormatTime
PRMJ_mktime
PRMJ_ComputeTime
PRMJ_localtime
PRMJ_ExplodeTime
PRMJ_ToLocal
PRMJ_ToGMT
PRMJ_NowLocal
PRMJ_DSTOffset
PRMJ_NowS
PRMJ_NowMS
PRMJ_Now
PRMJ_ToExtendedTime
PRMJ_ToBaseTime
PRMJ_setDST
PRMJ_LocalGMTDifference

3300
mozilla/js/src/jsapi.c Normal file

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1261
mozilla/js/src/jsapi.h Normal file

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mozilla/js/src/jsarena.c Normal file
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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
*
* The contents of this file are subject to the Netscape Public
* License Version 1.1 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.mozilla.org/NPL/
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express oqr
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* The Original Code is Mozilla Communicator client code, released
* March 31, 1998.
*
* The Initial Developer of the Original Code is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All
* Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the
* terms of the GNU Public License (the "GPL"), in which case the
* provisions of the GPL are applicable instead of those above.
* If you wish to allow use of your version of this file only
* under the terms of the GPL and not to allow others to use your
* version of this file under the NPL, indicate your decision by
* deleting the provisions above and replace them with the notice
* and other provisions required by the GPL. If you do not delete
* the provisions above, a recipient may use your version of this
* file under either the NPL or the GPL.
*/
/*
* Lifetime-based fast allocation, inspired by much prior art, including
* "Fast Allocation and Deallocation of Memory Based on Object Lifetimes"
* David R. Hanson, Software -- Practice and Experience, Vol. 20(1).
*/
#include "jsstddef.h"
#include <stdlib.h>
#include <string.h>
#include "jstypes.h"
#include "jsbit.h"
#include "jsarena.h" /* Added by JSIFY */
#include "jsutil.h" /* Added by JSIFY */
#ifdef JS_THREADSAFE
extern int js_CompareAndSwap(jsword *, jsword, jsword);
#endif
static JSArena *arena_freelist;
#ifdef JS_ARENAMETER
static JSArenaStats *arena_stats_list;
#define COUNT(pool,what) (pool)->stats.what++
#else
#define COUNT(pool,what) /* nothing */
#endif
#define JS_ARENA_DEFAULT_ALIGN sizeof(double)
JS_PUBLIC_API(void)
JS_InitArenaPool(JSArenaPool *pool, const char *name, JSUint32 size, JSUint32 align)
{
if (align == 0)
align = JS_ARENA_DEFAULT_ALIGN;
pool->mask = JS_BITMASK(JS_CeilingLog2(align));
pool->first.next = NULL;
pool->first.base = pool->first.avail = pool->first.limit =
(jsuword)JS_ARENA_ALIGN(pool, &pool->first + 1);
pool->current = &pool->first;
pool->arenasize = size;
#ifdef JS_ARENAMETER
memset(&pool->stats, 0, sizeof pool->stats);
pool->stats.name = strdup(name);
pool->stats.next = arena_stats_list;
arena_stats_list = &pool->stats;
#endif
}
JS_PUBLIC_API(void *)
JS_ArenaAllocate(JSArenaPool *pool, JSUint32 nb)
{
JSArena **ap, *a, *b;
#ifdef JS_THREADSAFE
JSArena *c;
#endif
JSUint32 sz;
void *p;
JS_ASSERT((nb & pool->mask) == 0);
#if defined(XP_PC) && !defined(_WIN32)
if (nb >= 60000U)
return 0;
#endif /* WIN16 */
ap = &arena_freelist;
for (a = pool->current; a->avail + nb > a->limit; pool->current = a) {
if (a->next) { /* move to next arena */
a = a->next;
continue;
}
while ((b = *ap) != NULL) { /* reclaim a free arena */
if (b->limit - b->base == pool->arenasize) {
#ifdef JS_THREADSAFE
do {
b = *ap;
c = b->next;
} while (!js_CompareAndSwap((jsword *)ap,(jsword)b,(jsword)c));
#else
*ap = b->next;
#endif
b->next = NULL;
a = a->next = b;
COUNT(pool, nreclaims);
goto claim;
}
ap = &b->next;
}
sz = JS_MAX(pool->arenasize, nb); /* allocate a new arena */
sz += sizeof *a + pool->mask; /* header and alignment slop */
b = malloc(sz);
if (!b)
return 0;
a = a->next = b;
a->next = NULL;
a->limit = (jsuword)a + sz;
JS_COUNT_ARENA(pool,++);
COUNT(pool, nmallocs);
claim:
a->base = a->avail = (jsuword)JS_ARENA_ALIGN(pool, a + 1);
}
p = (void *)a->avail;
a->avail += nb;
return p;
}
JS_PUBLIC_API(void *)
JS_ArenaGrow(JSArenaPool *pool, void *p, JSUint32 size, JSUint32 incr)
{
void *newp;
JS_ARENA_ALLOCATE(newp, pool, size + incr);
memcpy(newp, p, size);
return newp;
}
/*
* Free tail arenas linked after head, which may not be the true list head.
* Reset pool->current to point to head in case it pointed at a tail arena.
*/
static void
FreeArenaList(JSArenaPool *pool, JSArena *head, JSBool reallyFree)
{
JSArena **ap, *a;
#ifdef JS_THREADSAFE
JSArena *b;
#endif
ap = &head->next;
a = *ap;
if (!a)
return;
#ifdef DEBUG
do {
JS_ASSERT(a->base <= a->avail && a->avail <= a->limit);
a->avail = a->base;
JS_CLEAR_UNUSED(a);
} while ((a = a->next) != NULL);
a = *ap;
#endif
if (reallyFree) {
do {
*ap = a->next;
JS_CLEAR_ARENA(a);
JS_COUNT_ARENA(pool,--);
free(a);
} while ((a = *ap) != NULL);
} else {
/* Insert the whole arena chain at the front of the freelist. */
do {
ap = &(*ap)->next;
} while (*ap);
#ifdef JS_THREADSAFE
do {
*ap = b = arena_freelist;
} while (!js_CompareAndSwap((jsword*)&arena_freelist,(jsword)b,(jsword)a));
#else
*ap = arena_freelist;
arena_freelist = a;
#endif
head->next = NULL;
}
pool->current = head;
}
JS_PUBLIC_API(void)
JS_ArenaRelease(JSArenaPool *pool, char *mark)
{
JSArena *a;
for (a = pool->first.next; a; a = a->next) {
if (JS_UPTRDIFF(mark, a) < JS_UPTRDIFF(a->avail, a)) {
a->avail = (jsuword)JS_ARENA_ALIGN(pool, mark);
FreeArenaList(pool, a, JS_TRUE);
return;
}
}
}
JS_PUBLIC_API(void)
JS_FreeArenaPool(JSArenaPool *pool)
{
FreeArenaList(pool, &pool->first, JS_FALSE);
COUNT(pool, ndeallocs);
}
JS_PUBLIC_API(void)
JS_FinishArenaPool(JSArenaPool *pool)
{
FreeArenaList(pool, &pool->first, JS_TRUE);
#ifdef JS_ARENAMETER
{
JSArenaStats *stats, **statsp;
if (pool->stats.name)
free(pool->stats.name);
for (statsp = &arena_stats_list; (stats = *statsp) != 0;
statsp = &stats->next) {
if (stats == &pool->stats) {
*statsp = stats->next;
return;
}
}
}
#endif
}
JS_PUBLIC_API(void)
JS_CompactArenaPool(JSArenaPool *pool)
{
#if 0 /* XP_MAC */
JSArena *a = pool->first.next;
while (a) {
reallocSmaller(a, a->avail - (jsuword)a);
a->limit = a->avail;
a = a->next;
}
#endif
}
JS_PUBLIC_API(void)
JS_ArenaFinish()
{
JSArena *a, *next;
#ifdef JS_THREADSAFE
while (arena_freelist) {
a = arena_freelist;
next = a->next;
if (js_CompareAndSwap((jsword*)&arena_freelist,(jsword)a,(jsword)next))
free(a);
}
#else
for (a = arena_freelist; a; a = next) {
next = a->next;
free(a);
}
arena_freelist = NULL;
#endif
}
#ifdef JS_ARENAMETER
JS_PUBLIC_API(void)
JS_ArenaCountAllocation(JSArenaPool *pool, JSUint32 nb)
{
pool->stats.nallocs++;
pool->stats.nbytes += nb;
if (nb > pool->stats.maxalloc)
pool->stats.maxalloc = nb;
pool->stats.variance += nb * nb;
}
JS_PUBLIC_API(void)
JS_ArenaCountInplaceGrowth(JSArenaPool *pool, JSUint32 size, JSUint32 incr)
{
pool->stats.ninplace++;
}
JS_PUBLIC_API(void)
JS_ArenaCountGrowth(JSArenaPool *pool, JSUint32 size, JSUint32 incr)
{
pool->stats.ngrows++;
pool->stats.nbytes += incr;
pool->stats.variance -= size * size;
size += incr;
if (size > pool->stats.maxalloc)
pool->stats.maxalloc = size;
pool->stats.variance += size * size;
}
JS_PUBLIC_API(void)
JS_ArenaCountRelease(JSArenaPool *pool, char *mark)
{
pool->stats.nreleases++;
}
JS_PUBLIC_API(void)
JS_ArenaCountRetract(JSArenaPool *pool, char *mark)
{
pool->stats.nfastrels++;
}
#include <math.h>
#include <stdio.h>
JS_PUBLIC_API(void)
JS_DumpArenaStats(FILE *fp)
{
JSArenaStats *stats;
double mean, variance;
for (stats = arena_stats_list; stats; stats = stats->next) {
if (stats->nallocs != 0) {
mean = (double)stats->nbytes / stats->nallocs;
variance = fabs(stats->variance / stats->nallocs - mean * mean);
} else {
mean = variance = 0;
}
fprintf(fp, "\n%s allocation statistics:\n", stats->name);
fprintf(fp, " number of arenas: %u\n", stats->narenas);
fprintf(fp, " number of allocations: %u\n", stats->nallocs);
fprintf(fp, " number of free arena reclaims: %u\n", stats->nreclaims);
fprintf(fp, " number of malloc calls: %u\n", stats->nmallocs);
fprintf(fp, " number of deallocations: %u\n", stats->ndeallocs);
fprintf(fp, " number of allocation growths: %u\n", stats->ngrows);
fprintf(fp, " number of in-place growths: %u\n", stats->ninplace);
fprintf(fp, "number of released allocations: %u\n", stats->nreleases);
fprintf(fp, " number of fast releases: %u\n", stats->nfastrels);
fprintf(fp, " total bytes allocated: %u\n", stats->nbytes);
fprintf(fp, " mean allocation size: %g\n", mean);
fprintf(fp, " standard deviation: %g\n", sqrt(variance));
fprintf(fp, " maximum allocation size: %u\n", stats->maxalloc);
}
}
#endif /* JS_ARENAMETER */

261
mozilla/js/src/jsarena.h Normal file
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@@ -0,0 +1,261 @@
/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
*
* The contents of this file are subject to the Netscape Public
* License Version 1.1 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.mozilla.org/NPL/
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express oqr
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* The Original Code is Mozilla Communicator client code, released
* March 31, 1998.
*
* The Initial Developer of the Original Code is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All
* Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the
* terms of the GNU Public License (the "GPL"), in which case the
* provisions of the GPL are applicable instead of those above.
* If you wish to allow use of your version of this file only
* under the terms of the GPL and not to allow others to use your
* version of this file under the NPL, indicate your decision by
* deleting the provisions above and replace them with the notice
* and other provisions required by the GPL. If you do not delete
* the provisions above, a recipient may use your version of this
* file under either the NPL or the GPL.
*/
#ifndef jsarena_h___
#define jsarena_h___
/*
* Lifetime-based fast allocation, inspired by much prior art, including
* "Fast Allocation and Deallocation of Memory Based on Object Lifetimes"
* David R. Hanson, Software -- Practice and Experience, Vol. 20(1).
*
* Also supports LIFO allocation (JS_ARENA_MARK/JS_ARENA_RELEASE).
*/
#include <stdlib.h>
#include "jstypes.h"
#include "jscompat.h"
JS_BEGIN_EXTERN_C
typedef struct JSArena JSArena;
typedef struct JSArenaPool JSArenaPool;
struct JSArena {
JSArena *next; /* next arena for this lifetime */
jsuword base; /* aligned base address, follows this header */
jsuword limit; /* one beyond last byte in arena */
jsuword avail; /* points to next available byte */
};
#ifdef JS_ARENAMETER
typedef struct JSArenaStats JSArenaStats;
struct JSArenaStats {
JSArenaStats *next; /* next in arenaStats list */
char *name; /* name for debugging */
uint32 narenas; /* number of arenas in pool */
uint32 nallocs; /* number of JS_ARENA_ALLOCATE() calls */
uint32 nreclaims; /* number of reclaims from freeArenas */
uint32 nmallocs; /* number of malloc() calls */
uint32 ndeallocs; /* number of lifetime deallocations */
uint32 ngrows; /* number of JS_ARENA_GROW() calls */
uint32 ninplace; /* number of in-place growths */
uint32 nreleases; /* number of JS_ARENA_RELEASE() calls */
uint32 nfastrels; /* number of "fast path" releases */
size_t nbytes; /* total bytes allocated */
size_t maxalloc; /* maximum allocation size in bytes */
double variance; /* size variance accumulator */
};
#endif
struct JSArenaPool {
JSArena first; /* first arena in pool list */
JSArena *current; /* arena from which to allocate space */
size_t arenasize; /* net exact size of a new arena */
jsuword mask; /* alignment mask (power-of-2 - 1) */
#ifdef JS_ARENAMETER
JSArenaStats stats;
#endif
};
/*
* If the including .c file uses only one power-of-2 alignment, it may define
* JS_ARENA_CONST_ALIGN_MASK to the alignment mask and save a few instructions
* per ALLOCATE and GROW.
*/
#ifdef JS_ARENA_CONST_ALIGN_MASK
#define JS_ARENA_ALIGN(pool, n) (((jsuword)(n) + JS_ARENA_CONST_ALIGN_MASK) \
& ~JS_ARENA_CONST_ALIGN_MASK)
#define JS_INIT_ARENA_POOL(pool, name, size) \
JS_InitArenaPool(pool, name, size, JS_ARENA_CONST_ALIGN_MASK + 1)
#else
#define JS_ARENA_ALIGN(pool, n) (((jsuword)(n) + (pool)->mask) & ~(pool)->mask)
#endif
#define JS_ARENA_ALLOCATE(p, pool, nb) \
JS_BEGIN_MACRO \
JSArena *_a = (pool)->current; \
size_t _nb = JS_ARENA_ALIGN(pool, nb); \
jsuword _p = _a->avail; \
jsuword _q = _p + _nb; \
if (_q > _a->limit) \
_p = (jsuword)JS_ArenaAllocate(pool, _nb); \
else \
_a->avail = _q; \
p = (void *)_p; \
JS_ArenaCountAllocation(pool, nb); \
JS_END_MACRO
#define JS_ARENA_GROW(p, pool, size, incr) \
JS_BEGIN_MACRO \
JSArena *_a = (pool)->current; \
size_t _incr = JS_ARENA_ALIGN(pool, incr); \
jsuword _p = _a->avail; \
jsuword _q = _p + _incr; \
if (_p == (jsuword)(p) + JS_ARENA_ALIGN(pool, size) && \
_q <= _a->limit) { \
_a->avail = _q; \
JS_ArenaCountInplaceGrowth(pool, size, incr); \
} else { \
p = JS_ArenaGrow(pool, p, size, incr); \
} \
JS_ArenaCountGrowth(pool, size, incr); \
JS_END_MACRO
#define JS_ARENA_MARK(pool) ((void *) (pool)->current->avail)
#define JS_UPTRDIFF(p,q) ((jsuword)(p) - (jsuword)(q))
#ifdef DEBUG
#define JS_FREE_PATTERN 0xDA
#define JS_CLEAR_UNUSED(a) (JS_ASSERT((a)->avail <= (a)->limit), \
memset((void*)(a)->avail, JS_FREE_PATTERN, \
(a)->limit - (a)->avail))
#define JS_CLEAR_ARENA(a) memset((void*)(a), JS_FREE_PATTERN, \
(a)->limit - (jsuword)(a))
#else
#define JS_CLEAR_UNUSED(a) /* nothing */
#define JS_CLEAR_ARENA(a) /* nothing */
#endif
#define JS_ARENA_RELEASE(pool, mark) \
JS_BEGIN_MACRO \
char *_m = (char *)(mark); \
JSArena *_a = (pool)->current; \
if (JS_UPTRDIFF(_m, _a) <= JS_UPTRDIFF(_a->avail, _a)) { \
_a->avail = (jsuword)JS_ARENA_ALIGN(pool, _m); \
JS_CLEAR_UNUSED(_a); \
JS_ArenaCountRetract(pool, _m); \
} else { \
JS_ArenaRelease(pool, _m); \
} \
JS_ArenaCountRelease(pool, _m); \
JS_END_MACRO
#ifdef JS_ARENAMETER
#define JS_COUNT_ARENA(pool,op) ((pool)->stats.narenas op)
#else
#define JS_COUNT_ARENA(pool,op)
#endif
#define JS_ARENA_DESTROY(pool, a, pnext) \
JS_BEGIN_MACRO \
JS_COUNT_ARENA(pool,--); \
if ((pool)->current == (a)) (pool)->current = &(pool)->first; \
*(pnext) = (a)->next; \
JS_CLEAR_ARENA(a); \
free(a); \
(a) = NULL; \
JS_END_MACRO
/*
* Initialize an arena pool with the given name for debugging and metering,
* with a minimum size per arena of size bytes.
*/
extern JS_PUBLIC_API(void)
JS_InitArenaPool(JSArenaPool *pool, const char *name, JSUint32 size,
JSUint32 align);
/*
* Free the arenas in pool. The user may continue to allocate from pool
* after calling this function. There is no need to call JS_InitArenaPool()
* again unless JS_FinishArenaPool(pool) has been called.
*/
extern JS_PUBLIC_API(void)
JS_FreeArenaPool(JSArenaPool *pool);
/*
* Free the arenas in pool and finish using it altogether.
*/
extern JS_PUBLIC_API(void)
JS_FinishArenaPool(JSArenaPool *pool);
/*
* Compact all of the arenas in a pool so that no space is wasted.
*/
extern JS_PUBLIC_API(void)
JS_CompactArenaPool(JSArenaPool *pool);
/*
* Finish using arenas, freeing all memory associated with them.
*/
extern JS_PUBLIC_API(void)
JS_ArenaFinish(void);
/*
* Friend functions used by the JS_ARENA_*() macros.
*/
extern JS_PUBLIC_API(void *)
JS_ArenaAllocate(JSArenaPool *pool, JSUint32 nb);
extern JS_PUBLIC_API(void *)
JS_ArenaGrow(JSArenaPool *pool, void *p, JSUint32 size, JSUint32 incr);
extern JS_PUBLIC_API(void)
JS_ArenaRelease(JSArenaPool *pool, char *mark);
#ifdef JS_ARENAMETER
#include <stdio.h>
extern JS_PUBLIC_API(void)
JS_ArenaCountAllocation(JSArenaPool *pool, JSUint32 nb);
extern JS_PUBLIC_API(void)
JS_ArenaCountInplaceGrowth(JSArenaPool *pool, JSUint32 size, JSUint32 incr);
extern JS_PUBLIC_API(void)
JS_ArenaCountGrowth(JSArenaPool *pool, JSUint32 size, JSUint32incr);
extern JS_PUBLIC_API(void)
JS_ArenaCountRelease(JSArenaPool *pool, char *mark);
extern JS_PUBLIC_API(void)
JS_ArenaCountRetract(JSArenaPool *pool, char *mark);
extern JS_PUBLIC_API(void)
JS_DumpArenaStats(FILE *fp);
#else /* !JS_ARENAMETER */
#define JS_ArenaCountAllocation(ap, nb) /* nothing */
#define JS_ArenaCountInplaceGrowth(ap, size, incr) /* nothing */
#define JS_ArenaCountGrowth(ap, size, incr) /* nothing */
#define JS_ArenaCountRelease(ap, mark) /* nothing */
#define JS_ArenaCountRetract(ap, mark) /* nothing */
#endif /* !JS_ARENAMETER */
JS_END_EXTERN_C
#endif /* jsarena_h___ */

1371
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mozilla/js/src/jsarray.h Normal file
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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
*
* The contents of this file are subject to the Netscape Public
* License Version 1.1 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.mozilla.org/NPL/
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express oqr
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* The Original Code is Mozilla Communicator client code, released
* March 31, 1998.
*
* The Initial Developer of the Original Code is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All
* Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the
* terms of the GNU Public License (the "GPL"), in which case the
* provisions of the GPL are applicable instead of those above.
* If you wish to allow use of your version of this file only
* under the terms of the GPL and not to allow others to use your
* version of this file under the NPL, indicate your decision by
* deleting the provisions above and replace them with the notice
* and other provisions required by the GPL. If you do not delete
* the provisions above, a recipient may use your version of this
* file under either the NPL or the GPL.
*/
#ifndef jsarray_h___
#define jsarray_h___
/*
* JS Array interface.
*/
#include "jsprvtd.h"
#include "jspubtd.h"
JS_BEGIN_EXTERN_C
extern JSClass js_ArrayClass;
extern JSObject *
js_InitArrayClass(JSContext *cx, JSObject *obj);
extern JSObject *
js_NewArrayObject(JSContext *cx, jsuint length, jsval *vector);
extern JSBool
js_GetLengthProperty(JSContext *cx, JSObject *obj, jsuint *lengthp);
extern JSBool
js_SetLengthProperty(JSContext *cx, JSObject *obj, jsuint length);
extern JSBool
js_HasLengthProperty(JSContext *cx, JSObject *obj, jsuint *lengthp);
/*
* JS-specific qsort function.
*/
typedef int (*JSComparator)(const void *a, const void *b, void *arg);
extern JSBool
js_qsort(void *vec, size_t nel, size_t elsize, JSComparator cmp, void *arg);
JS_END_EXTERN_C
#endif /* jsarray_h___ */

779
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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
*
* The contents of this file are subject to the Netscape Public
* License Version 1.1 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.mozilla.org/NPL/
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express oqr
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* The Original Code is Mozilla Communicator client code, released
* March 31, 1998.
*
* The Initial Developer of the Original Code is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All
* Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the
* terms of the GNU Public License (the "GPL"), in which case the
* provisions of the GPL are applicable instead of those above.
* If you wish to allow use of your version of this file only
* under the terms of the GPL and not to allow others to use your
* version of this file under the NPL, indicate your decision by
* deleting the provisions above and replace them with the notice
* and other provisions required by the GPL. If you do not delete
* the provisions above, a recipient may use your version of this
* file under either the NPL or the GPL.
*/
/*
* JS atom table.
*/
#include "jsstddef.h"
#include <stdlib.h>
#include <string.h>
#include "jstypes.h"
#include "jsutil.h" /* Added by JSIFY */
#include "jshash.h" /* Added by JSIFY */
#include "jsprf.h"
#include "jsapi.h"
#include "jsatom.h"
#include "jscntxt.h"
#include "jsgc.h"
#include "jslock.h"
#include "jsnum.h"
#include "jsopcode.h"
#include "jsstr.h"
/*
* Keep this in sync with jspubtd.h -- an assertion below will insist that
* its length match the JSType enum's JSTYPE_LIMIT limit value.
*/
char *js_type_str[] = {
"undefined",
"object",
"function",
"string",
"number",
"boolean",
};
char *js_boolean_str[] = {
js_false_str,
js_true_str
};
char js_Array_str[] = "Array";
char js_Math_str[] = "Math";
char js_NaN_str[] = "NaN";
char js_Object_str[] = "Object";
char js_anonymous_str[] = "anonymous";
char js_arguments_str[] = "arguments";
char js_arity_str[] = "arity";
char js_callee_str[] = "callee";
char js_caller_str[] = "caller";
char js_class_prototype_str[] = "prototype";
char js_constructor_str[] = "constructor";
char js_count_str[] = "__count__";
char js_eval_str[] = "eval";
char js_getter_str[] = "getter";
char js_index_str[] = "index";
char js_input_str[] = "input";
char js_length_str[] = "length";
char js_name_str[] = "name";
char js_parent_str[] = "__parent__";
char js_proto_str[] = "__proto__";
char js_setter_str[] = "setter";
char js_toSource_str[] = "toSource";
char js_toString_str[] = "toString";
char js_valueOf_str[] = "valueOf";
#define HASH_OBJECT(o) ((JSHashNumber)(o) >> JSVAL_TAGBITS)
#define HASH_INT(i) ((JSHashNumber)(i))
#define HASH_DOUBLE(dp) ((JSHashNumber)(((uint32*)(dp))[0] ^ ((uint32*)(dp))[1]))
#define HASH_BOOLEAN(b) ((JSHashNumber)(b))
JS_STATIC_DLL_CALLBACK(JSHashNumber)
js_hash_atom_key(const void *key)
{
jsval v;
jsdouble *dp;
/* Order JSVAL_IS_* tests by likelihood of success. */
v = (jsval)key;
if (JSVAL_IS_STRING(v))
return js_HashString(JSVAL_TO_STRING(v));
if (JSVAL_IS_INT(v))
return HASH_INT(JSVAL_TO_INT(v));
if (JSVAL_IS_DOUBLE(v)) {
dp = JSVAL_TO_DOUBLE(v);
return HASH_DOUBLE(dp);
}
if (JSVAL_IS_OBJECT(v))
return HASH_OBJECT(JSVAL_TO_OBJECT(v));
if (JSVAL_IS_BOOLEAN(v))
return HASH_BOOLEAN(JSVAL_TO_BOOLEAN(v));
return (JSHashNumber)v;
}
JS_STATIC_DLL_CALLBACK(intN)
js_compare_atom_keys(const void *k1, const void *k2)
{
jsval v1, v2;
v1 = (jsval)k1, v2 = (jsval)k2;
if (JSVAL_IS_STRING(v1) && JSVAL_IS_STRING(v2))
return !js_CompareStrings(JSVAL_TO_STRING(v1), JSVAL_TO_STRING(v2));
if (JSVAL_IS_DOUBLE(v1) && JSVAL_IS_DOUBLE(v2)) {
double d1 = *JSVAL_TO_DOUBLE(v1);
double d2 = *JSVAL_TO_DOUBLE(v2);
if (JSDOUBLE_IS_NaN(d1))
return JSDOUBLE_IS_NaN(d2);
#ifdef XP_PC
/* XXX MSVC miscompiles such that (NaN == 0) */
if (JSDOUBLE_IS_NaN(d2))
return JS_FALSE;
#endif
return d1 == d2;
}
return v1 == v2;
}
JS_STATIC_DLL_CALLBACK(int)
js_compare_stub(const void *v1, const void *v2)
{
return 1;
}
JS_STATIC_DLL_CALLBACK(void *)
js_alloc_atom_space(void *priv, size_t size)
{
return malloc(size);
}
JS_STATIC_DLL_CALLBACK(void)
js_free_atom_space(void *priv, void *item)
{
free(item);
}
JS_STATIC_DLL_CALLBACK(JSHashEntry *)
js_alloc_atom(void *priv, const void *key)
{
JSAtomState *state = priv;
JSAtom *atom;
atom = malloc(sizeof(JSAtom));
if (!atom)
return NULL;
#ifdef JS_THREADSAFE
state->tablegen++;
#endif
atom->entry.key = key;
atom->entry.value = NULL;
atom->flags = 0;
atom->kwindex = -1;
atom->number = state->number++;
return &atom->entry;
}
JS_STATIC_DLL_CALLBACK(void)
js_free_atom(void *priv, JSHashEntry *he, uintN flag)
{
if (flag != HT_FREE_ENTRY)
return;
#ifdef JS_THREADSAFE
((JSAtomState *)priv)->tablegen++;
#endif
free(he);
}
static JSHashAllocOps atom_alloc_ops = {
js_alloc_atom_space, js_free_atom_space,
js_alloc_atom, js_free_atom
};
#define JS_ATOM_HASH_SIZE 1024
JSBool
js_InitAtomState(JSContext *cx, JSAtomState *state)
{
uintN i;
memset(state, 0, sizeof *state);
state->runtime = cx->runtime;
state->table = JS_NewHashTable(JS_ATOM_HASH_SIZE, js_hash_atom_key,
js_compare_atom_keys, js_compare_stub,
&atom_alloc_ops, state);
if (!state->table) {
JS_ReportOutOfMemory(cx);
return JS_FALSE;
}
#ifdef JS_THREADSAFE
js_NewLock(&state->lock);
state->tablegen = 0;
#endif
#define FROB(lval,str) \
JS_BEGIN_MACRO \
if (!(state->lval = js_Atomize(cx, str, strlen(str), ATOM_PINNED))) \
goto bad; \
JS_END_MACRO
JS_ASSERT(sizeof js_type_str / sizeof js_type_str[0] == JSTYPE_LIMIT);
for (i = 0; i < JSTYPE_LIMIT; i++)
FROB(typeAtoms[i], js_type_str[i]);
FROB(booleanAtoms[0], js_false_str);
FROB(booleanAtoms[1], js_true_str);
FROB(nullAtom, js_null_str);
FROB(ArrayAtom, js_Array_str);
FROB(MathAtom, js_Math_str);
FROB(NaNAtom, js_NaN_str);
FROB(ObjectAtom, js_Object_str);
FROB(anonymousAtom, js_anonymous_str);
FROB(argumentsAtom, js_arguments_str);
FROB(arityAtom, js_arity_str);
FROB(calleeAtom, js_callee_str);
FROB(callerAtom, js_caller_str);
FROB(classPrototypeAtom, js_class_prototype_str);
FROB(constructorAtom, js_constructor_str);
FROB(countAtom, js_count_str);
FROB(getterAtom, js_getter_str);
FROB(indexAtom, js_index_str);
FROB(inputAtom, js_input_str);
FROB(lengthAtom, js_length_str);
FROB(nameAtom, js_name_str);
FROB(parentAtom, js_parent_str);
FROB(protoAtom, js_proto_str);
FROB(setterAtom, js_setter_str);
FROB(toSourceAtom, js_toSource_str);
FROB(toStringAtom, js_toString_str);
FROB(valueOfAtom, js_valueOf_str);
FROB(evalAtom, js_eval_str);
#undef FROB
return JS_TRUE;
bad:
js_FreeAtomState(cx, state);
return JS_FALSE;
}
void
js_FreeAtomState(JSContext *cx, JSAtomState *state)
{
state->runtime = NULL;
JS_HashTableDestroy(state->table);
state->table = NULL;
state->number = 0;
#ifdef JS_THREADSAFE
js_DestroyLock(&state->lock);
#endif
}
typedef struct MarkArgs {
JSRuntime *runtime;
JSGCThingMarker mark;
} MarkArgs;
JS_STATIC_DLL_CALLBACK(intN)
js_atom_marker(JSHashEntry *he, intN i, void *arg)
{
JSAtom *atom;
jsval key;
MarkArgs *args;
atom = (JSAtom *)he;
if (atom->flags & ATOM_PINNED) {
atom->flags |= ATOM_MARK;
key = ATOM_KEY(atom);
if (JSVAL_IS_GCTHING(key)) {
args = arg;
args->mark(args->runtime, JSVAL_TO_GCTHING(key));
}
}
return HT_ENUMERATE_NEXT;
}
void
js_MarkAtomState(JSAtomState *state, JSGCThingMarker mark)
{
MarkArgs args;
args.runtime = state->runtime;
args.mark = mark;
JS_HashTableEnumerateEntries(state->table, js_atom_marker, &args);
}
JS_STATIC_DLL_CALLBACK(intN)
js_atom_sweeper(JSHashEntry *he, intN i, void *arg)
{
JSAtom *atom;
atom = (JSAtom *)he;
if (atom->flags & ATOM_MARK) {
atom->flags &= ~ATOM_MARK;
return HT_ENUMERATE_NEXT;
}
JS_ASSERT((atom->flags & ATOM_PINNED) == 0);
atom->entry.key = NULL;
atom->flags = 0;
return HT_ENUMERATE_REMOVE;
}
void
js_SweepAtomState(JSAtomState *state)
{
JS_HashTableEnumerateEntries(state->table, js_atom_sweeper, NULL);
}
JS_STATIC_DLL_CALLBACK(intN)
js_atom_unpinner(JSHashEntry *he, intN i, void *arg)
{
JSAtom *atom;
atom = (JSAtom *)he;
atom->flags &= ~ATOM_PINNED;
return HT_ENUMERATE_NEXT;
}
void
js_UnpinPinnedAtoms(JSAtomState *state)
{
JS_HashTableEnumerateEntries(state->table, js_atom_unpinner, NULL);
}
static JSAtom *
js_AtomizeHashedKey(JSContext *cx, jsval key, JSHashNumber keyHash, uintN flags)
{
JSAtomState *state;
JSHashTable *table;
JSHashEntry *he, **hep;
JSAtom *atom;
state = &cx->runtime->atomState;
JS_LOCK(&state->lock,cx);
table = state->table;
hep = JS_HashTableRawLookup(table, keyHash, (void *)key);
if ((he = *hep) == NULL) {
he = JS_HashTableRawAdd(table, hep, keyHash, (void *)key, NULL);
if (!he) {
JS_ReportOutOfMemory(cx);
atom = NULL;
goto out;
}
}
atom = (JSAtom *)he;
atom->flags |= flags;
out:
JS_UNLOCK(&state->lock,cx);
return atom;
}
JSAtom *
js_AtomizeObject(JSContext *cx, JSObject *obj, uintN flags)
{
jsval key;
JSHashNumber keyHash;
/* XXX must be set in the following order or MSVC1.52 will crash */
keyHash = HASH_OBJECT(obj);
key = OBJECT_TO_JSVAL(obj);
return js_AtomizeHashedKey(cx, key, keyHash, flags);
}
JSAtom *
js_AtomizeBoolean(JSContext *cx, JSBool b, uintN flags)
{
jsval key;
JSHashNumber keyHash;
key = BOOLEAN_TO_JSVAL(b);
keyHash = HASH_BOOLEAN(b);
return js_AtomizeHashedKey(cx, key, keyHash, flags);
}
JSAtom *
js_AtomizeInt(JSContext *cx, jsint i, uintN flags)
{
jsval key;
JSHashNumber keyHash;
key = INT_TO_JSVAL(i);
keyHash = HASH_INT(i);
return js_AtomizeHashedKey(cx, key, keyHash, flags);
}
/* Worst-case alignment grain and aligning macro for 2x-sized buffer. */
#define ALIGNMENT(t) JS_MAX(JSVAL_ALIGN, sizeof(t))
#define ALIGN(b,t) ((t*) &(b)[ALIGNMENT(t) - (jsuword)(b) % ALIGNMENT(t)])
JSAtom *
js_AtomizeDouble(JSContext *cx, jsdouble d, uintN flags)
{
jsdouble *dp;
JSHashNumber keyHash;
jsval key;
JSAtomState *state;
JSHashTable *table;
JSHashEntry *he, **hep;
JSAtom *atom;
char buf[2 * ALIGNMENT(double)];
dp = ALIGN(buf, double);
*dp = d;
keyHash = HASH_DOUBLE(dp);
key = DOUBLE_TO_JSVAL(dp);
state = &cx->runtime->atomState;
JS_LOCK(&state->lock,cx);
table = state->table;
hep = JS_HashTableRawLookup(table, keyHash, (void *)key);
if ((he = *hep) == NULL) {
#ifdef JS_THREADSAFE
uint32 gen = state->tablegen;
#endif
JS_UNLOCK(&state->lock,cx);
if (!js_NewDoubleValue(cx, d, &key))
return NULL;
JS_LOCK(&state->lock,cx);
#ifdef JS_THREADSAFE
if (state->tablegen != gen) {
hep = JS_HashTableRawLookup(table, keyHash, (void *)key);
if ((he = *hep) != NULL) {
atom = (JSAtom *)he;
goto out;
}
}
#endif
he = JS_HashTableRawAdd(table, hep, keyHash, (void *)key, NULL);
if (!he) {
JS_ReportOutOfMemory(cx);
atom = NULL;
goto out;
}
}
atom = (JSAtom *)he;
atom->flags |= flags;
out:
JS_UNLOCK(&state->lock,cx);
return atom;
}
JSAtom *
js_AtomizeString(JSContext *cx, JSString *str, uintN flags)
{
JSHashNumber keyHash;
jsval key;
JSAtomState *state;
JSHashTable *table;
JSHashEntry *he, **hep;
JSAtom *atom;
keyHash = js_HashString(str);
key = STRING_TO_JSVAL(str);
state = &cx->runtime->atomState;
JS_LOCK(&state->lock,cx);
table = state->table;
hep = JS_HashTableRawLookup(table, keyHash, (void *)key);
if ((he = *hep) == NULL) {
if (flags & ATOM_TMPSTR) {
#ifdef JS_THREADSAFE
uint32 gen = state->tablegen;
#endif
JS_UNLOCK(&state->lock,cx);
if (flags & ATOM_NOCOPY) {
str = js_NewString(cx, str->chars, str->length, 0);
} else {
str = js_NewStringCopyN(cx, str->chars, str->length, 0);
}
if (!str)
return NULL;
key = STRING_TO_JSVAL(str);
JS_LOCK(&state->lock,cx);
#ifdef JS_THREADSAFE
if (state->tablegen != gen) {
hep = JS_HashTableRawLookup(table, keyHash, (void *)key);
if ((he = *hep) != NULL) {
atom = (JSAtom *)he;
if (flags & ATOM_NOCOPY)
str->chars = NULL;
goto out;
}
}
#endif
}
he = JS_HashTableRawAdd(table, hep, keyHash, (void *)key, NULL);
if (!he) {
JS_ReportOutOfMemory(cx);
atom = NULL;
goto out;
}
}
atom = (JSAtom *)he;
atom->flags |= flags & ATOM_PINNED;
out:
JS_UNLOCK(&state->lock,cx);
return atom;
}
JS_FRIEND_API(JSAtom *)
js_Atomize(JSContext *cx, const char *bytes, size_t length, uintN flags)
{
jschar *chars;
JSString *str;
JSAtom *atom;
char buf[2 * ALIGNMENT(JSString)];
str = ALIGN(buf, JSString);
chars = js_InflateString(cx, bytes, length);
if (!chars)
return NULL;
str->chars = chars;
str->length = length;
atom = js_AtomizeString(cx, str, ATOM_TMPSTR | ATOM_NOCOPY | flags);
if (!atom || ATOM_TO_STRING(atom)->chars != chars)
JS_free(cx, chars);
return atom;
}
JS_FRIEND_API(JSAtom *)
js_AtomizeChars(JSContext *cx, const jschar *chars, size_t length, uintN flags)
{
JSString *str;
char buf[2 * ALIGNMENT(JSString)];
str = ALIGN(buf, JSString);
str->chars = (jschar *)chars;
str->length = length;
return js_AtomizeString(cx, str, ATOM_TMPSTR | flags);
}
JSAtom *
js_AtomizeValue(JSContext *cx, jsval value, uintN flags)
{
if (JSVAL_IS_STRING(value))
return js_AtomizeString(cx, JSVAL_TO_STRING(value), flags);
if (JSVAL_IS_INT(value))
return js_AtomizeInt(cx, JSVAL_TO_INT(value), flags);
if (JSVAL_IS_DOUBLE(value))
return js_AtomizeDouble(cx, *JSVAL_TO_DOUBLE(value), flags);
if (JSVAL_IS_OBJECT(value))
return js_AtomizeObject(cx, JSVAL_TO_OBJECT(value), flags);
if (JSVAL_IS_BOOLEAN(value))
return js_AtomizeBoolean(cx, JSVAL_TO_BOOLEAN(value), flags);
return js_AtomizeHashedKey(cx, value, (JSHashNumber)value, flags);
}
JSAtom *
js_ValueToStringAtom(JSContext *cx, jsval v)
{
JSString *str;
str = js_ValueToString(cx, v);
if (!str)
return NULL;
return js_AtomizeString(cx, str, 0);
}
JS_STATIC_DLL_CALLBACK(JSHashNumber)
js_hash_atom_ptr(const void *key)
{
const JSAtom *atom = key;
return atom->number;
}
JS_STATIC_DLL_CALLBACK(void *)
js_alloc_temp_space(void *priv, size_t size)
{
JSContext *cx = priv;
void *space;
JS_ARENA_ALLOCATE(space, &cx->tempPool, size);
if (!space)
JS_ReportOutOfMemory(cx);
return space;
}
JS_STATIC_DLL_CALLBACK(void)
js_free_temp_space(void *priv, void *item)
{
}
JS_STATIC_DLL_CALLBACK(JSHashEntry *)
js_alloc_temp_entry(void *priv, const void *key)
{
JSContext *cx = priv;
JSAtomListElement *ale;
JS_ARENA_ALLOCATE(ale, &cx->tempPool, sizeof(JSAtomListElement));
if (!ale) {
JS_ReportOutOfMemory(cx);
return NULL;
}
return &ale->entry;
}
JS_STATIC_DLL_CALLBACK(void)
js_free_temp_entry(void *priv, JSHashEntry *he, uintN flag)
{
}
static JSHashAllocOps temp_alloc_ops = {
js_alloc_temp_space, js_free_temp_space,
js_alloc_temp_entry, js_free_temp_entry
};
JSAtomListElement *
js_IndexAtom(JSContext *cx, JSAtom *atom, JSAtomList *al)
{
JSAtomListElement *ale, *ale2, *next;
JSHashEntry **hep;
ATOM_LIST_LOOKUP(ale, hep, al, atom);
if (!ale) {
if (al->count <= 5) {
/* Few enough for linear search, no hash table needed. */
JS_ASSERT(!al->table);
ale = (JSAtomListElement *)js_alloc_temp_entry(cx, atom);
if (!ale)
return NULL;
ALE_SET_ATOM(ale, atom);
ALE_SET_NEXT(ale, al->list);
al->list = ale;
} else {
/* We want to hash. Have we already made a hash table? */
if (!al->table) {
/* No hash table yet, so hep had better be null! */
JS_ASSERT(!hep);
al->table = JS_NewHashTable(8, js_hash_atom_ptr,
JS_CompareValues, JS_CompareValues,
&temp_alloc_ops, cx);
if (!al->table)
return NULL;
/* Insert each ale on al->list into the new hash table. */
for (ale2 = al->list; ale2; ale2 = next) {
next = ALE_NEXT(ale2);
ale2->entry.keyHash = ALE_ATOM(ale2)->number;
hep = JS_HashTableRawLookup(al->table, ale2->entry.keyHash,
ale2->entry.key);
ALE_SET_NEXT(ale2, *hep);
*hep = &ale2->entry;
}
al->list = NULL;
/* Set hep for insertion of atom's ale, immediately below. */
hep = JS_HashTableRawLookup(al->table, atom->number, atom);
}
/* Finally, add an entry for atom into the hash bucket at hep. */
ale = (JSAtomListElement *)
JS_HashTableRawAdd(al->table, hep, atom->number, atom, NULL);
if (!ale)
return NULL;
}
ALE_SET_INDEX(ale, al->count++);
}
return ale;
}
JS_FRIEND_API(JSAtom *)
js_GetAtom(JSContext *cx, JSAtomMap *map, jsatomid i)
{
JSAtom *atom;
static JSAtom dummy;
JS_ASSERT(map->vector && i < map->length);
if (!map->vector || i >= map->length) {
char numBuf[12];
JS_snprintf(numBuf, sizeof numBuf, "%lu", (unsigned long)i);
JS_ReportErrorNumber(cx, js_GetErrorMessage, NULL,
JSMSG_BAD_ATOMIC_NUMBER, numBuf);
return &dummy;
}
atom = map->vector[i];
JS_ASSERT(atom);
return atom;
}
JS_STATIC_DLL_CALLBACK(intN)
js_map_atom(JSHashEntry *he, intN i, void *arg)
{
JSAtomListElement *ale = (JSAtomListElement *)he;
JSAtom **vector = arg;
vector[ALE_INDEX(ale)] = ALE_ATOM(ale);
return HT_ENUMERATE_NEXT;
}
#ifdef DEBUG
jsrefcount js_atom_map_count;
jsrefcount js_atom_map_hash_table_count;
#endif
JS_FRIEND_API(JSBool)
js_InitAtomMap(JSContext *cx, JSAtomMap *map, JSAtomList *al)
{
JSAtom **vector;
JSAtomListElement *ale;
uint32 count;
#ifdef DEBUG
JS_ATOMIC_ADDREF(&js_atom_map_count, 1);
#endif
ale = al->list;
if (!ale && !al->table) {
map->vector = NULL;
map->length = 0;
return JS_TRUE;
}
count = al->count;
if (count >= ATOM_INDEX_LIMIT) {
JS_ReportErrorNumber(cx, js_GetErrorMessage, NULL,
JSMSG_TOO_MANY_LITERALS);
return JS_FALSE;
}
vector = JS_malloc(cx, (size_t) count * sizeof *vector);
if (!vector)
return JS_FALSE;
if (al->table) {
#ifdef DEBUG
JS_ATOMIC_ADDREF(&js_atom_map_hash_table_count, 1);
#endif
JS_HashTableEnumerateEntries(al->table, js_map_atom, vector);
} else {
do {
vector[ALE_INDEX(ale)] = ALE_ATOM(ale);
} while ((ale = ALE_NEXT(ale)) != NULL);
}
ATOM_LIST_INIT(al);
map->vector = vector;
map->length = (jsatomid)count;
return JS_TRUE;
}
JS_FRIEND_API(void)
js_FreeAtomMap(JSContext *cx, JSAtomMap *map)
{
if (map->vector) {
free(map->vector);
map->vector = NULL;
}
map->length = 0;
}

315
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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
*
* The contents of this file are subject to the Netscape Public
* License Version 1.1 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.mozilla.org/NPL/
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express oqr
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* The Original Code is Mozilla Communicator client code, released
* March 31, 1998.
*
* The Initial Developer of the Original Code is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All
* Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the
* terms of the GNU Public License (the "GPL"), in which case the
* provisions of the GPL are applicable instead of those above.
* If you wish to allow use of your version of this file only
* under the terms of the GPL and not to allow others to use your
* version of this file under the NPL, indicate your decision by
* deleting the provisions above and replace them with the notice
* and other provisions required by the GPL. If you do not delete
* the provisions above, a recipient may use your version of this
* file under either the NPL or the GPL.
*/
#ifndef jsatom_h___
#define jsatom_h___
/*
* JS atom table.
*/
#include <stddef.h>
#include "jstypes.h"
#include "jshash.h" /* Added by JSIFY */
#include "jsapi.h"
#include "jsprvtd.h"
#include "jspubtd.h"
#ifdef JS_THREADSAFE
#include "jslock.h"
#endif
JS_BEGIN_EXTERN_C
#define ATOM_NOCOPY 0x01 /* don't copy atom string bytes */
#define ATOM_TMPSTR 0x02 /* internal, to avoid extra string */
#define ATOM_MARK 0x04 /* atom is reachable via GC */
#define ATOM_PINNED 0x08 /* atom is pinned against GC */
struct JSAtom {
JSHashEntry entry; /* key is jsval, value keyword info */
uint8 flags; /* flags, PINNED and/or MARK for now */
int8 kwindex; /* keyword index, -1 if not keyword */
jsatomid number; /* atom serial number and hash code */
};
#define ATOM_KEY(atom) ((jsval)(atom)->entry.key)
#define ATOM_IS_OBJECT(atom) JSVAL_IS_OBJECT(ATOM_KEY(atom))
#define ATOM_TO_OBJECT(atom) JSVAL_TO_OBJECT(ATOM_KEY(atom))
#define ATOM_IS_INT(atom) JSVAL_IS_INT(ATOM_KEY(atom))
#define ATOM_TO_INT(atom) JSVAL_TO_INT(ATOM_KEY(atom))
#define ATOM_IS_DOUBLE(atom) JSVAL_IS_DOUBLE(ATOM_KEY(atom))
#define ATOM_TO_DOUBLE(atom) JSVAL_TO_DOUBLE(ATOM_KEY(atom))
#define ATOM_IS_STRING(atom) JSVAL_IS_STRING(ATOM_KEY(atom))
#define ATOM_TO_STRING(atom) JSVAL_TO_STRING(ATOM_KEY(atom))
#define ATOM_IS_BOOLEAN(atom) JSVAL_IS_BOOLEAN(ATOM_KEY(atom))
#define ATOM_TO_BOOLEAN(atom) JSVAL_TO_BOOLEAN(ATOM_KEY(atom))
#define ATOM_BYTES(atom) JS_GetStringBytes(ATOM_TO_STRING(atom))
struct JSAtomListElement {
JSHashEntry entry;
};
#define ALE_ATOM(ale) ((JSAtom *) (ale)->entry.key)
#define ALE_INDEX(ale) ((jsatomid) (ale)->entry.value)
#define ALE_NODE(ale) ((JSParseNode *) (ale)->entry.value)
#define ALE_NEXT(ale) ((JSAtomListElement *) (ale)->entry.next)
#define ALE_SET_ATOM(ale,atom) ((ale)->entry.key = (const void *)(atom))
#define ALE_SET_INDEX(ale,index)((ale)->entry.value = (void *)(index))
#define ALE_SET_NODE(ale,pn) ((ale)->entry.value = (void *)(pn))
#define ALE_SET_NEXT(ale,link) ((ale)->entry.next = (JSHashEntry *)(link))
struct JSAtomList {
JSAtomListElement *list; /* literals indexed for mapping */
JSHashTable *table; /* hash table if list gets too long */
jsuint count; /* count of indexed literals */
};
#define ATOM_LIST_INIT(al) ((al)->list = NULL, (al)->table = NULL, \
(al)->count = 0)
#define ATOM_LIST_SEARCH(_ale,_al,_atom) \
JS_BEGIN_MACRO \
JSHashEntry **_hep; \
ATOM_LIST_LOOKUP(_ale, _hep, _al, _atom); \
JS_END_MACRO
#define ATOM_LIST_LOOKUP(_ale,_hep,_al,_atom) \
JS_BEGIN_MACRO \
if ((_al)->table) { \
_hep = JS_HashTableRawLookup((_al)->table, _atom->number, _atom); \
_ale = *_hep ? (JSAtomListElement *) *_hep : NULL; \
} else { \
JSAtomListElement **_alep = &(_al)->list; \
_hep = NULL; \
while ((_ale = *_alep) != NULL) { \
if (ALE_ATOM(_ale) == (_atom)) { \
/* Hit, move atom's element to the front of the list. */ \
*_alep = ALE_NEXT(_ale); \
ALE_SET_NEXT(_ale, (_al)->list); \
(_al)->list = _ale; \
break; \
} \
_alep = (JSAtomListElement **)&_ale->entry.next; \
} \
} \
JS_END_MACRO
struct JSAtomMap {
JSAtom **vector; /* array of ptrs to indexed atoms */
jsatomid length; /* count of (to-be-)indexed atoms */
};
struct JSAtomState {
JSRuntime *runtime; /* runtime that owns us */
JSHashTable *table; /* hash table containing all atoms */
jsatomid number; /* one beyond greatest atom number */
/* Type names and value literals. */
JSAtom *typeAtoms[JSTYPE_LIMIT];
JSAtom *booleanAtoms[2];
JSAtom *nullAtom;
/* Various built-in or commonly-used atoms. */
JSAtom *ArrayAtom;
JSAtom *MathAtom;
JSAtom *NaNAtom;
JSAtom *ObjectAtom;
JSAtom *anonymousAtom;
JSAtom *argumentsAtom;
JSAtom *arityAtom;
JSAtom *calleeAtom;
JSAtom *callerAtom;
JSAtom *classPrototypeAtom;
JSAtom *constructorAtom;
JSAtom *countAtom;
JSAtom *getterAtom;
JSAtom *indexAtom;
JSAtom *inputAtom;
JSAtom *lengthAtom;
JSAtom *nameAtom;
JSAtom *parentAtom;
JSAtom *protoAtom;
JSAtom *setterAtom;
JSAtom *toSourceAtom;
JSAtom *toStringAtom;
JSAtom *valueOfAtom;
JSAtom *evalAtom;
#ifdef JS_THREADSAFE
JSThinLock lock;
volatile uint32 tablegen;
#endif
};
/* Well-known predefined strings and their atoms. */
extern char *js_type_str[];
extern char *js_boolean_str[];
extern char js_Array_str[];
extern char js_Math_str[];
extern char js_NaN_str[];
extern char js_Object_str[];
extern char js_anonymous_str[];
extern char js_arguments_str[];
extern char js_arity_str[];
extern char js_callee_str[];
extern char js_caller_str[];
extern char js_class_prototype_str[];
extern char js_constructor_str[];
extern char js_count_str[];
extern char js_eval_str[];
extern char js_getter_str[];
extern char js_index_str[];
extern char js_input_str[];
extern char js_length_str[];
extern char js_name_str[];
extern char js_parent_str[];
extern char js_proto_str[];
extern char js_setter_str[];
extern char js_toSource_str[];
extern char js_toString_str[];
extern char js_valueOf_str[];
/*
* Initialize atom state. Return true on success, false with an out of
* memory error report on failure.
*/
extern JSBool
js_InitAtomState(JSContext *cx, JSAtomState *state);
/*
* Free and clear atom state.
*/
extern void
js_FreeAtomState(JSContext *cx, JSAtomState *state);
/*
* Atom garbage collection hooks.
*/
typedef void
(*JSGCThingMarker)(JSRuntime *rt, void *thing);
extern void
js_MarkAtomState(JSAtomState *state, JSGCThingMarker mark);
extern void
js_SweepAtomState(JSAtomState *state);
extern void
js_UnpinPinnedAtoms(JSAtomState *state);
/*
* Find or create the atom for an object. If we create a new atom, give it the
* type indicated in flags. Return 0 on failure to allocate memory.
*/
extern JSAtom *
js_AtomizeObject(JSContext *cx, JSObject *obj, uintN flags);
/*
* Find or create the atom for a Boolean value. If we create a new atom, give
* it the type indicated in flags. Return 0 on failure to allocate memory.
*/
extern JSAtom *
js_AtomizeBoolean(JSContext *cx, JSBool b, uintN flags);
/*
* Find or create the atom for an integer value. If we create a new atom, give
* it the type indicated in flags. Return 0 on failure to allocate memory.
*/
extern JSAtom *
js_AtomizeInt(JSContext *cx, jsint i, uintN flags);
/*
* Find or create the atom for a double value. If we create a new atom, give
* it the type indicated in flags. Return 0 on failure to allocate memory.
*/
extern JSAtom *
js_AtomizeDouble(JSContext *cx, jsdouble d, uintN flags);
/*
* Find or create the atom for a string. If we create a new atom, give it the
* type indicated in flags. Return 0 on failure to allocate memory.
*/
extern JSAtom *
js_AtomizeString(JSContext *cx, JSString *str, uintN flags);
extern JS_FRIEND_API(JSAtom *)
js_Atomize(JSContext *cx, const char *bytes, size_t length, uintN flags);
extern JS_FRIEND_API(JSAtom *)
js_AtomizeChars(JSContext *cx, const jschar *chars, size_t length, uintN flags);
/*
* This variant handles all value tag types.
*/
extern JSAtom *
js_AtomizeValue(JSContext *cx, jsval value, uintN flags);
/*
* Convert v to an atomized string.
*/
extern JSAtom *
js_ValueToStringAtom(JSContext *cx, jsval v);
/*
* Assign atom an index and insert it on al.
*/
extern JSAtomListElement *
js_IndexAtom(JSContext *cx, JSAtom *atom, JSAtomList *al);
/*
* Get the atom with index i from map.
*/
extern JS_FRIEND_API(JSAtom *)
js_GetAtom(JSContext *cx, JSAtomMap *map, jsatomid i);
/*
* For all unmapped atoms recorded in al, add a mapping from the atom's index
* to its address. The GC must not run until all indexed atoms in atomLists
* have been mapped by scripts connected to live objects (Function and Script
* class objects have scripts as/in their private data -- the GC knows about
* these two classes).
*/
extern JS_FRIEND_API(JSBool)
js_InitAtomMap(JSContext *cx, JSAtomMap *map, JSAtomList *al);
/*
* Free map->vector and clear map.
*/
extern JS_FRIEND_API(void)
js_FreeAtomMap(JSContext *cx, JSAtomMap *map);
JS_END_EXTERN_C
#endif /* jsatom_h___ */

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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/*
* The contents of this file are subject to the Netscape Public
* License Version 1.1 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.mozilla.org/NPL/
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express oqr
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* The Original Code is Mozilla Communicator client code, released
* March 31, 1998.
*
* The Initial Developer of the Original Code is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All
* Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the
* terms of the GNU Public License (the "GPL"), in which case the
* provisions of the GPL are applicable instead of those above.
* If you wish to allow use of your version of this file only
* under the terms of the GPL and not to allow others to use your
* version of this file under the NPL, indicate your decision by
* deleting the provisions above and replace them with the notice
* and other provisions required by the GPL. If you do not delete
* the provisions above, a recipient may use your version of this
* file under either the NPL or the GPL.
*/
#ifndef jsbit_h___
#define jsbit_h___
#include "jstypes.h"
JS_BEGIN_EXTERN_C
/*
** A jsbitmap_t is a long integer that can be used for bitmaps
*/
typedef unsigned long jsbitmap_t;
#define JS_TEST_BIT(_map,_bit) \
((_map)[(_bit)>>JS_BITS_PER_LONG_LOG2] & (1L << ((_bit) & (JS_BITS_PER_LONG-1))))
#define JS_SET_BIT(_map,_bit) \
((_map)[(_bit)>>JS_BITS_PER_LONG_LOG2] |= (1L << ((_bit) & (JS_BITS_PER_LONG-1))))
#define JS_CLEAR_BIT(_map,_bit) \
((_map)[(_bit)>>JS_BITS_PER_LONG_LOG2] &= ~(1L << ((_bit) & (JS_BITS_PER_LONG-1))))
/*
** Compute the log of the least power of 2 greater than or equal to n
*/
extern JS_PUBLIC_API(JSIntn) JS_CeilingLog2(JSUint32 i);
/*
** Compute the log of the greatest power of 2 less than or equal to n
*/
extern JS_PUBLIC_API(JSIntn) JS_FloorLog2(JSUint32 i);
/*
** Macro version of JS_CeilingLog2: Compute the log of the least power of
** 2 greater than or equal to _n. The result is returned in _log2.
*/
#define JS_CEILING_LOG2(_log2,_n) \
JS_BEGIN_MACRO \
JSUint32 j_ = (JSUint32)(_n); \
(_log2) = 0; \
if ((j_) & ((j_)-1)) \
(_log2) += 1; \
if ((j_) >> 16) \
(_log2) += 16, (j_) >>= 16; \
if ((j_) >> 8) \
(_log2) += 8, (j_) >>= 8; \
if ((j_) >> 4) \
(_log2) += 4, (j_) >>= 4; \
if ((j_) >> 2) \
(_log2) += 2, (j_) >>= 2; \
if ((j_) >> 1) \
(_log2) += 1; \
JS_END_MACRO
/*
** Macro version of JS_FloorLog2: Compute the log of the greatest power of
** 2 less than or equal to _n. The result is returned in _log2.
**
** This is equivalent to finding the highest set bit in the word.
*/
#define JS_FLOOR_LOG2(_log2,_n) \
JS_BEGIN_MACRO \
JSUint32 j_ = (JSUint32)(_n); \
(_log2) = 0; \
if ((j_) >> 16) \
(_log2) += 16, (j_) >>= 16; \
if ((j_) >> 8) \
(_log2) += 8, (j_) >>= 8; \
if ((j_) >> 4) \
(_log2) += 4, (j_) >>= 4; \
if ((j_) >> 2) \
(_log2) += 2, (j_) >>= 2; \
if ((j_) >> 1) \
(_log2) += 1; \
JS_END_MACRO
JS_END_EXTERN_C
#endif /* jsbit_h___ */

239
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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
*
* The contents of this file are subject to the Netscape Public
* License Version 1.1 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.mozilla.org/NPL/
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express oqr
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* The Original Code is Mozilla Communicator client code, released
* March 31, 1998.
*
* The Initial Developer of the Original Code is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All
* Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the
* terms of the GNU Public License (the "GPL"), in which case the
* provisions of the GPL are applicable instead of those above.
* If you wish to allow use of your version of this file only
* under the terms of the GPL and not to allow others to use your
* version of this file under the NPL, indicate your decision by
* deleting the provisions above and replace them with the notice
* and other provisions required by the GPL. If you do not delete
* the provisions above, a recipient may use your version of this
* file under either the NPL or the GPL.
*/
/*
* JS boolean implementation.
*/
#include "jsstddef.h"
#include "jstypes.h"
#include "jsutil.h" /* Added by JSIFY */
#include "jsapi.h"
#include "jsatom.h"
#include "jsbool.h"
#include "jscntxt.h"
#include "jsconfig.h"
#include "jsinterp.h"
#include "jslock.h"
#include "jsnum.h"
#include "jsobj.h"
#include "jsstr.h"
static JSClass boolean_class = {
"Boolean",
JSCLASS_HAS_PRIVATE,
JS_PropertyStub, JS_PropertyStub, JS_PropertyStub, JS_PropertyStub,
JS_EnumerateStub, JS_ResolveStub, JS_ConvertStub, JS_FinalizeStub,
JSCLASS_NO_OPTIONAL_MEMBERS
};
#if JS_HAS_TOSOURCE
#include "jsprf.h"
static JSBool
bool_toSource(JSContext *cx, JSObject *obj, uintN argc, jsval *argv,
jsval *rval)
{
jsval v;
char buf[32];
JSString *str;
if (!JS_InstanceOf(cx, obj, &boolean_class, argv))
return JS_FALSE;
v = OBJ_GET_SLOT(cx, obj, JSSLOT_PRIVATE);
if (!JSVAL_IS_BOOLEAN(v))
return js_obj_toSource(cx, obj, argc, argv, rval);
JS_snprintf(buf, sizeof buf, "(new %s(%s))",
boolean_class.name,
js_boolean_str[JSVAL_TO_BOOLEAN(v) ? 1 : 0]);
str = JS_NewStringCopyZ(cx, buf);
if (!str)
return JS_FALSE;
*rval = STRING_TO_JSVAL(str);
return JS_TRUE;
}
#endif
static JSBool
bool_toString(JSContext *cx, JSObject *obj, uintN argc, jsval *argv,
jsval *rval)
{
jsval v;
JSAtom *atom;
JSString *str;
if (!JS_InstanceOf(cx, obj, &boolean_class, argv))
return JS_FALSE;
v = OBJ_GET_SLOT(cx, obj, JSSLOT_PRIVATE);
if (!JSVAL_IS_BOOLEAN(v))
return js_obj_toString(cx, obj, argc, argv, rval);
atom = cx->runtime->atomState.booleanAtoms[JSVAL_TO_BOOLEAN(v) ? 1 : 0];
str = ATOM_TO_STRING(atom);
if (!str)
return JS_FALSE;
*rval = STRING_TO_JSVAL(str);
return JS_TRUE;
}
static JSBool
bool_valueOf(JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval)
{
if (!JS_InstanceOf(cx, obj, &boolean_class, argv))
return JS_FALSE;
*rval = OBJ_GET_SLOT(cx, obj, JSSLOT_PRIVATE);
return JS_TRUE;
}
static JSFunctionSpec boolean_methods[] = {
#if JS_HAS_TOSOURCE
{js_toSource_str, bool_toSource, 0,0,0},
#endif
{js_toString_str, bool_toString, 0,0,0},
{js_valueOf_str, bool_valueOf, 0,0,0},
{0,0,0,0,0}
};
#ifdef XP_MAC
#undef Boolean
#define Boolean js_Boolean
#endif
static JSBool
Boolean(JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval)
{
JSBool b;
jsval bval;
if (argc != 0) {
if (!js_ValueToBoolean(cx, argv[0], &b))
return JS_FALSE;
bval = BOOLEAN_TO_JSVAL(b);
} else {
bval = JSVAL_FALSE;
}
if (!cx->fp->constructing) {
*rval = bval;
return JS_TRUE;
}
OBJ_SET_SLOT(cx, obj, JSSLOT_PRIVATE, bval);
return JS_TRUE;
}
JSObject *
js_InitBooleanClass(JSContext *cx, JSObject *obj)
{
JSObject *proto;
proto = JS_InitClass(cx, obj, NULL, &boolean_class, Boolean, 1,
NULL, boolean_methods, NULL, NULL);
if (!proto)
return NULL;
OBJ_SET_SLOT(cx, proto, JSSLOT_PRIVATE, JSVAL_FALSE);
return proto;
}
JSObject *
js_BooleanToObject(JSContext *cx, JSBool b)
{
JSObject *obj;
obj = js_NewObject(cx, &boolean_class, NULL, NULL);
if (!obj)
return NULL;
OBJ_SET_SLOT(cx, obj, JSSLOT_PRIVATE, BOOLEAN_TO_JSVAL(b));
return obj;
}
JSString *
js_BooleanToString(JSContext *cx, JSBool b)
{
return ATOM_TO_STRING(cx->runtime->atomState.booleanAtoms[b ? 1 : 0]);
}
JSBool
js_ValueToBoolean(JSContext *cx, jsval v, JSBool *bp)
{
JSBool b;
jsdouble d;
#if defined XP_PC && defined _MSC_VER && _MSC_VER <= 800
/* MSVC1.5 coredumps */
if (!bp)
return JS_TRUE;
/* This should be an if-else chain, but MSVC1.5 crashes if it is. */
#define ELSE
#else
#define ELSE else
#endif
if (JSVAL_IS_NULL(v) || JSVAL_IS_VOID(v)) {
/* Must return early to avoid falling thru to JSVAL_IS_OBJECT case. */
*bp = JS_FALSE;
return JS_TRUE;
}
if (JSVAL_IS_OBJECT(v)) {
if (!JSVERSION_IS_ECMA(cx->version)) {
if (!OBJ_DEFAULT_VALUE(cx, JSVAL_TO_OBJECT(v), JSTYPE_BOOLEAN, &v))
return JS_FALSE;
if (!JSVAL_IS_BOOLEAN(v))
v = JSVAL_TRUE; /* non-null object is true */
b = JSVAL_TO_BOOLEAN(v);
} else {
b = JS_TRUE;
}
} ELSE
if (JSVAL_IS_STRING(v)) {
b = JSVAL_TO_STRING(v)->length ? JS_TRUE : JS_FALSE;
} ELSE
if (JSVAL_IS_INT(v)) {
b = JSVAL_TO_INT(v) ? JS_TRUE : JS_FALSE;
} ELSE
if (JSVAL_IS_DOUBLE(v)) {
d = *JSVAL_TO_DOUBLE(v);
b = (!JSDOUBLE_IS_NaN(d) && d != 0) ? JS_TRUE : JS_FALSE;
} ELSE
#if defined XP_PC && defined _MSC_VER && _MSC_VER <= 800
if (JSVAL_IS_BOOLEAN(v)) {
b = JSVAL_TO_BOOLEAN(v);
}
#else
{
JS_ASSERT(JSVAL_IS_BOOLEAN(v));
b = JSVAL_TO_BOOLEAN(v);
}
#endif
#undef ELSE
*bp = b;
return JS_TRUE;
}

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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
*
* The contents of this file are subject to the Netscape Public
* License Version 1.1 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.mozilla.org/NPL/
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express oqr
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* The Original Code is Mozilla Communicator client code, released
* March 31, 1998.
*
* The Initial Developer of the Original Code is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All
* Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the
* terms of the GNU Public License (the "GPL"), in which case the
* provisions of the GPL are applicable instead of those above.
* If you wish to allow use of your version of this file only
* under the terms of the GPL and not to allow others to use your
* version of this file under the NPL, indicate your decision by
* deleting the provisions above and replace them with the notice
* and other provisions required by the GPL. If you do not delete
* the provisions above, a recipient may use your version of this
* file under either the NPL or the GPL.
*/
#ifndef jsbool_h___
#define jsbool_h___
/*
* JS boolean interface.
*/
JS_BEGIN_EXTERN_C
extern JSObject *
js_InitBooleanClass(JSContext *cx, JSObject *obj);
extern JSObject *
js_BooleanToObject(JSContext *cx, JSBool b);
extern JSString *
js_BooleanToString(JSContext *cx, JSBool b);
extern JSBool
js_ValueToBoolean(JSContext *cx, jsval v, JSBool *bp);
JS_END_EXTERN_C
#endif /* jsbool_h___ */

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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/*
* The contents of this file are subject to the Netscape Public
* License Version 1.1 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.mozilla.org/NPL/
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express oqr
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* The Original Code is Mozilla Communicator client code, released
* March 31, 1998.
*
* The Initial Developer of the Original Code is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All
* Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the
* terms of the GNU Public License (the "GPL"), in which case the
* provisions of the GPL are applicable instead of those above.
* If you wish to allow use of your version of this file only
* under the terms of the GPL and not to allow others to use your
* version of this file under the NPL, indicate your decision by
* deleting the provisions above and replace them with the notice
* and other provisions required by the GPL. If you do not delete
* the provisions above, a recipient may use your version of this
* file under either the NPL or the GPL.
*/
#ifndef jsclist_h___
#define jsclist_h___
#include "jstypes.h"
/*
** Circular linked list
*/
typedef struct JSCListStr {
struct JSCListStr *next;
struct JSCListStr *prev;
} JSCList;
/*
** Insert element "_e" into the list, before "_l".
*/
#define JS_INSERT_BEFORE(_e,_l) \
JS_BEGIN_MACRO \
(_e)->next = (_l); \
(_e)->prev = (_l)->prev; \
(_l)->prev->next = (_e); \
(_l)->prev = (_e); \
JS_END_MACRO
/*
** Insert element "_e" into the list, after "_l".
*/
#define JS_INSERT_AFTER(_e,_l) \
JS_BEGIN_MACRO \
(_e)->next = (_l)->next; \
(_e)->prev = (_l); \
(_l)->next->prev = (_e); \
(_l)->next = (_e); \
JS_END_MACRO
/*
** Return the element following element "_e"
*/
#define JS_NEXT_LINK(_e) \
((_e)->next)
/*
** Return the element preceding element "_e"
*/
#define JS_PREV_LINK(_e) \
((_e)->prev)
/*
** Append an element "_e" to the end of the list "_l"
*/
#define JS_APPEND_LINK(_e,_l) JS_INSERT_BEFORE(_e,_l)
/*
** Insert an element "_e" at the head of the list "_l"
*/
#define JS_INSERT_LINK(_e,_l) JS_INSERT_AFTER(_e,_l)
/* Return the head/tail of the list */
#define JS_LIST_HEAD(_l) (_l)->next
#define JS_LIST_TAIL(_l) (_l)->prev
/*
** Remove the element "_e" from it's circular list.
*/
#define JS_REMOVE_LINK(_e) \
JS_BEGIN_MACRO \
(_e)->prev->next = (_e)->next; \
(_e)->next->prev = (_e)->prev; \
JS_END_MACRO
/*
** Remove the element "_e" from it's circular list. Also initializes the
** linkage.
*/
#define JS_REMOVE_AND_INIT_LINK(_e) \
JS_BEGIN_MACRO \
(_e)->prev->next = (_e)->next; \
(_e)->next->prev = (_e)->prev; \
(_e)->next = (_e); \
(_e)->prev = (_e); \
JS_END_MACRO
/*
** Return non-zero if the given circular list "_l" is empty, zero if the
** circular list is not empty
*/
#define JS_CLIST_IS_EMPTY(_l) \
((_l)->next == (_l))
/*
** Initialize a circular list
*/
#define JS_INIT_CLIST(_l) \
JS_BEGIN_MACRO \
(_l)->next = (_l); \
(_l)->prev = (_l); \
JS_END_MACRO
#define JS_INIT_STATIC_CLIST(_l) \
{(_l), (_l)}
#endif /* jsclist_h___ */

586
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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
*
* The contents of this file are subject to the Netscape Public
* License Version 1.1 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.mozilla.org/NPL/
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express oqr
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* The Original Code is Mozilla Communicator client code, released
* March 31, 1998.
*
* The Initial Developer of the Original Code is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All
* Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the
* terms of the GNU Public License (the "GPL"), in which case the
* provisions of the GPL are applicable instead of those above.
* If you wish to allow use of your version of this file only
* under the terms of the GPL and not to allow others to use your
* version of this file under the NPL, indicate your decision by
* deleting the provisions above and replace them with the notice
* and other provisions required by the GPL. If you do not delete
* the provisions above, a recipient may use your version of this
* file under either the NPL or the GPL.
*/
/*
* JS execution context.
*/
#include "jsstddef.h"
#include <stdarg.h>
#include <stdlib.h>
#include <string.h>
#include "jstypes.h"
#include "jsarena.h" /* Added by JSIFY */
#include "jsutil.h" /* Added by JSIFY */
#include "jsclist.h"
#include "jsprf.h"
#include "jsatom.h"
#include "jscntxt.h"
#include "jsconfig.h"
#include "jsdbgapi.h"
#include "jsexn.h"
#include "jsgc.h"
#include "jslock.h"
#include "jsobj.h"
#include "jsopcode.h"
#include "jsscan.h"
#include "jsscript.h"
JSContext *
js_NewContext(JSRuntime *rt, size_t stacksize)
{
JSContext *cx;
JSBool ok, first;
cx = malloc(sizeof *cx);
if (!cx)
return NULL;
memset(cx, 0, sizeof *cx);
cx->runtime = rt;
#ifdef JS_THREADSAFE
js_InitContextForLocking(cx);
#endif
JS_LOCK_RUNTIME(rt);
for (;;) {
first = (rt->contextList.next == (JSCList *)&rt->contextList);
if (rt->state == JSRTS_UP) {
JS_ASSERT(!first);
break;
}
if (rt->state == JSRTS_DOWN) {
JS_ASSERT(first);
rt->state = JSRTS_LAUNCHING;
break;
}
JS_WAIT_CONDVAR(rt->stateChange, JS_NO_TIMEOUT);
}
JS_APPEND_LINK(&cx->links, &rt->contextList);
JS_UNLOCK_RUNTIME(rt);
if (first) {
/* First context on this runtime: initialize atoms and keywords. */
ok = js_InitAtomState(cx, &rt->atomState);
if (ok)
ok = js_InitScanner(cx);
JS_LOCK_RUNTIME(rt);
rt->state = JSRTS_UP;
JS_NOTIFY_ALL_CONDVAR(rt->stateChange);
JS_UNLOCK_RUNTIME(rt);
if (!ok) {
free(cx);
return NULL;
}
}
cx->version = JSVERSION_DEFAULT;
cx->jsop_eq = JSOP_EQ;
cx->jsop_ne = JSOP_NE;
JS_InitArenaPool(&cx->stackPool, "stack", stacksize, sizeof(jsval));
JS_InitArenaPool(&cx->codePool, "code", 1024, sizeof(jsbytecode));
JS_InitArenaPool(&cx->notePool, "note", 256, sizeof(jssrcnote));
JS_InitArenaPool(&cx->tempPool, "temp", 1024, sizeof(jsdouble));
#if JS_HAS_REGEXPS
if (!js_InitRegExpStatics(cx, &cx->regExpStatics)) {
js_DestroyContext(cx, JS_FORCE_GC);
return NULL;
}
#endif
#if JS_HAS_EXCEPTIONS
cx->throwing = JS_FALSE;
#endif
return cx;
}
void
js_DestroyContext(JSContext *cx, JSGCMode gcmode)
{
JSRuntime *rt;
JSBool last;
JSArgumentFormatMap *map;
rt = cx->runtime;
/* Remove cx from context list first. */
JS_LOCK_RUNTIME(rt);
JS_ASSERT(rt->state == JSRTS_UP);
JS_REMOVE_LINK(&cx->links);
last = (rt->contextList.next == (JSCList *)&rt->contextList);
if (last)
rt->state = JSRTS_LANDING;
JS_UNLOCK_RUNTIME(rt);
if (last) {
/* Unpin all pinned atoms before final GC. */
js_UnpinPinnedAtoms(&rt->atomState);
/* Unlock GC things held by runtime pointers. */
js_UnlockGCThing(cx, rt->jsNaN);
js_UnlockGCThing(cx, rt->jsNegativeInfinity);
js_UnlockGCThing(cx, rt->jsPositiveInfinity);
js_UnlockGCThing(cx, rt->emptyString);
/*
* Clear these so they get recreated if the standard classes are
* initialized again.
*/
rt->jsNaN = NULL;
rt->jsNegativeInfinity = NULL;
rt->jsPositiveInfinity = NULL;
rt->emptyString = NULL;
/* Clear debugging state to remove GC roots. */
JS_ClearAllTraps(cx);
JS_ClearAllWatchPoints(cx);
}
/* Remove more GC roots in regExpStatics, then collect garbage. */
#if JS_HAS_REGEXPS
js_FreeRegExpStatics(cx, &cx->regExpStatics);
#endif
/* XXXbe this deadlocks with a GC waiting for this request to end */
if (gcmode == JS_FORCE_GC)
js_ForceGC(cx);
else if (gcmode == JS_MAYBE_GC)
JS_MaybeGC(cx);
if (last) {
if (gcmode == JS_NO_GC)
js_ForceGC(cx);
/* Free atom state now that we've run the GC. */
js_FreeAtomState(cx, &rt->atomState);
}
/* Free the stuff hanging off of cx. */
JS_FinishArenaPool(&cx->stackPool);
JS_FinishArenaPool(&cx->codePool);
JS_FinishArenaPool(&cx->notePool);
JS_FinishArenaPool(&cx->tempPool);
if (cx->lastMessage)
free(cx->lastMessage);
#ifdef JS_THREADSAFE
/* Destroying a context implicitly calls JS_EndRequest(). */
if (cx->requestDepth)
JS_EndRequest(cx);
#endif
/* remove any argument formatters */
map = cx->argumentFormatMap;
while (map) {
JSArgumentFormatMap *temp = map;
map = map->next;
JS_free(cx, temp);
}
free(cx);
if (last) {
JS_LOCK_RUNTIME(rt);
rt->state = JSRTS_DOWN;
JS_NOTIFY_ALL_CONDVAR(rt->stateChange);
JS_UNLOCK_RUNTIME(rt);
}
}
JSContext *
js_ContextIterator(JSRuntime *rt, JSContext **iterp)
{
JSContext *cx = *iterp;
JS_LOCK_RUNTIME(rt);
if (!cx)
cx = (JSContext *)rt->contextList.next;
if ((void *)cx == &rt->contextList)
cx = NULL;
else
*iterp = (JSContext *)cx->links.next;
JS_UNLOCK_RUNTIME(rt);
return cx;
}
static void
ReportError(JSContext *cx, const char *message, JSErrorReport *reportp)
{
/*
* Check the error report, and set a JavaScript-catchable exception
* if the error is defined to have an associated exception. If an
* exception is thrown, then the JSREPORT_EXCEPTION flag will be set
* on the error report, and exception-aware hosts should ignore it.
*/
if (reportp && reportp->errorNumber == JSMSG_UNCAUGHT_EXCEPTION)
reportp->flags |= JSREPORT_EXCEPTION;
#if JS_HAS_ERROR_EXCEPTIONS
/*
* Call the error reporter only if an exception wasn't raised.
*
* If an exception was raised, then we call the debugErrorHook
* (if present) to give it a chance to see the error before it
* propagates out of scope. This is needed for compatability
* with the old scheme.
*/
if (!js_ErrorToException(cx, message, reportp)) {
js_ReportErrorAgain(cx, message, reportp);
} else if (cx->runtime->debugErrorHook && cx->errorReporter) {
JSDebugErrorHook hook = cx->runtime->debugErrorHook;
/* test local in case debugErrorHook changed on another thread */
if (hook)
hook(cx, message, reportp, cx->runtime->debugErrorHookData);
}
#else
js_ReportErrorAgain(cx, message, reportp);
#endif
}
JSBool
js_ReportErrorVA(JSContext *cx, uintN flags, const char *format, va_list ap)
{
JSStackFrame *fp;
JSErrorReport report, *reportp;
char *last;
JSBool warning;
fp = cx->fp;
/* Walk stack until we find a frame that is associated with
some script rather than a native frame. */
while (fp && (!fp->script || !fp->pc))
fp = fp->down;
if (fp) {
report.filename = fp->script->filename;
report.lineno = js_PCToLineNumber(fp->script, fp->pc);
/* XXX should fetch line somehow */
report.linebuf = NULL;
report.tokenptr = NULL;
report.uclinebuf = NULL;
report.uctokenptr = NULL;
report.flags = flags;
report.errorNumber = 0;
report.ucmessage = NULL;
report.messageArgs = NULL;
reportp = &report;
} else {
/* XXXshaver still fill out report here for flags? */
reportp = NULL;
}
last = JS_vsmprintf(format, ap);
if (!last)
return JS_FALSE;
ReportError(cx, last, reportp);
free(last);
warning = JSREPORT_IS_WARNING(reportp->flags);
if (warning && JS_HAS_WERROR_OPTION(cx)) {
reportp->flags &= ~JSREPORT_WARNING;
warning = JS_FALSE;
}
return warning;
}
/*
* The arguments from ap need to be packaged up into an array and stored
* into the report struct.
*
* The format string addressed by the error number may contain operands
* identified by the format {N}, where N is a decimal digit. Each of these
* is to be replaced by the Nth argument from the va_list. The complete
* message is placed into reportp->ucmessage converted to a JSString.
*
* Returns true if the expansion succeeds (can fail if out of memory).
*/
JSBool
js_ExpandErrorArguments(JSContext *cx, JSErrorCallback callback,
void *userRef, const uintN errorNumber,
char **messagep, JSErrorReport *reportp,
JSBool *warningp, JSBool charArgs, va_list ap)
{
const JSErrorFormatString *fmtData;
int i;
int argCount;
*warningp = JSREPORT_IS_WARNING(reportp->flags);
if (*warningp && JS_HAS_WERROR_OPTION(cx)) {
reportp->flags &= ~JSREPORT_WARNING;
*warningp = JS_FALSE;
}
*messagep = NULL;
if (callback) {
fmtData = (*callback)(userRef, "Mountain View", errorNumber);
if (fmtData != NULL) {
size_t totalArgsLength = 0;
size_t argLengths[10]; /* only {0} thru {9} supported */
argCount = fmtData->argCount;
JS_ASSERT(argCount <= 10);
if (argCount > 0) {
/*
* Gather the arguments into an array, and accumulate
* their sizes. We allocate 1 more than necessary and
* null it out to act as the caboose when we free the
* pointers later.
*/
reportp->messageArgs
= JS_malloc(cx, sizeof(jschar *) * (argCount + 1));
if (!reportp->messageArgs)
return JS_FALSE;
reportp->messageArgs[argCount] = NULL;
for (i = 0; i < argCount; i++) {
if (charArgs) {
char *charArg = va_arg(ap, char *);
reportp->messageArgs[i]
= js_InflateString(cx, charArg, strlen(charArg));
}
else
reportp->messageArgs[i] = va_arg(ap, jschar *);
argLengths[i] = js_strlen(reportp->messageArgs[i]);
totalArgsLength += argLengths[i];
}
/* NULL-terminate for easy copying. */
reportp->messageArgs[i] = NULL;
}
/*
* Parse the error format, substituting the argument X
* for {X} in the format.
*/
if (argCount > 0) {
if (fmtData->format) {
const char *fmt;
const jschar *arg;
jschar *out;
int expandedArgs = 0;
size_t expandedLength
= strlen(fmtData->format)
- (3 * argCount) /* exclude the {n} */
+ totalArgsLength;
/*
* Note - the above calculation assumes that each argument
* is used once and only once in the expansion !!!
*/
reportp->ucmessage = out
= JS_malloc(cx, (expandedLength + 1) * sizeof(jschar));
if (!out) {
if (reportp->messageArgs) {
JS_free(cx, (void *)reportp->messageArgs);
reportp->messageArgs = NULL;
}
return JS_FALSE;
}
fmt = fmtData->format;
while (*fmt) {
if (*fmt == '{') { /* balance} */
if (isdigit(fmt[1])) {
int d = JS7_UNDEC(fmt[1]);
JS_ASSERT(expandedArgs < argCount);
arg = reportp->messageArgs[d];
js_strncpy(out, arg, argLengths[d]);
out += argLengths[d];
fmt += 3;
expandedArgs++;
continue;
}
}
/*
* is this kosher?
*/
*out++ = (unsigned char)(*fmt++);
}
JS_ASSERT(expandedArgs == argCount);
*out = 0;
*messagep =
js_DeflateString(cx, reportp->ucmessage,
(size_t)(out - reportp->ucmessage));
}
} else {
/*
* Zero arguments: the format string (if it exists) is the
* entire message.
*/
if (fmtData->format) {
*messagep = JS_strdup(cx, fmtData->format);
reportp->ucmessage
= js_InflateString(cx, *messagep, strlen(*messagep));
}
}
}
}
if (*messagep == NULL) {
/* where's the right place for this ??? */
const char *defaultErrorMessage
= "No error message available for error number %d";
size_t nbytes = strlen(defaultErrorMessage) + 16;
*messagep = (char *)JS_malloc(cx, nbytes);
JS_snprintf(*messagep, nbytes, defaultErrorMessage, errorNumber);
}
return JS_TRUE;
}
JSBool
js_ReportErrorNumberVA(JSContext *cx, uintN flags, JSErrorCallback callback,
void *userRef, const uintN errorNumber,
JSBool charArgs, va_list ap)
{
JSStackFrame *fp;
JSErrorReport report;
char *message;
JSBool warning;
report.messageArgs = NULL;
report.ucmessage = NULL;
message = NULL;
fp = cx->fp;
if (fp && fp->script && fp->pc) {
report.filename = fp->script->filename;
report.lineno = js_PCToLineNumber(fp->script, fp->pc);
} else {
/* We can't find out where the error was from the current
frame so see if the next frame has a script/pc combo we
could use */
if (fp && fp->down && fp->down->script && fp->down->pc) {
report.filename = fp->down->script->filename;
report.lineno = js_PCToLineNumber(fp->down->script, fp->down->pc);
}
else {
report.filename = NULL;
report.lineno = 0;
}
}
/* XXX should fetch line somehow */
report.linebuf = NULL;
report.tokenptr = NULL;
report.flags = flags;
report.errorNumber = errorNumber;
/*
* XXX js_ExpandErrorArguments only sometimes fills these in, so we
* initialize them to clear garbage.
*/
report.uclinebuf = NULL;
report.uctokenptr = NULL;
report.ucmessage = NULL;
report.messageArgs = NULL;
if (!js_ExpandErrorArguments(cx, callback, userRef, errorNumber,
&message, &report, &warning, charArgs, ap)) {
return JS_FALSE;
}
ReportError(cx, message, &report);
if (message)
JS_free(cx, message);
if (report.messageArgs) {
int i = 0;
while (report.messageArgs[i])
JS_free(cx, (void *)report.messageArgs[i++]);
JS_free(cx, (void *)report.messageArgs);
}
if (report.ucmessage)
JS_free(cx, (void *)report.ucmessage);
return warning;
}
JS_FRIEND_API(void)
js_ReportErrorAgain(JSContext *cx, const char *message, JSErrorReport *reportp)
{
JSErrorReporter onError;
if (!message)
return;
if (cx->lastMessage)
free(cx->lastMessage);
cx->lastMessage = JS_strdup(cx, message);
if (!cx->lastMessage)
return;
onError = cx->errorReporter;
/*
* If debugErrorHook is present then we give it a chance to veto
* sending the error on to the regular ErrorReporter.
*/
if (cx->runtime->debugErrorHook && onError) {
JSDebugErrorHook hook = cx->runtime->debugErrorHook;
/* test local in case debugErrorHook changed on another thread */
if (hook && !hook(cx, message, reportp,
cx->runtime->debugErrorHookData)) {
onError = NULL;
}
}
if (onError)
(*onError)(cx, cx->lastMessage, reportp);
}
void
js_ReportIsNotDefined(JSContext *cx, const char *name)
{
JS_ReportErrorNumber(cx, js_GetErrorMessage, NULL, JSMSG_NOT_DEFINED, name);
}
#if defined DEBUG && defined XP_UNIX
/* For gdb usage. */
void js_traceon(JSContext *cx) { cx->tracefp = stderr; }
void js_traceoff(JSContext *cx) { cx->tracefp = NULL; }
#endif
JSErrorFormatString js_ErrorFormatString[JSErr_Limit] = {
#if JS_HAS_DFLT_MSG_STRINGS
#define MSG_DEF(name, number, count, exception, format) \
{ format, count } ,
#else
#define MSG_DEF(name, number, count, exception, format) \
{ NULL, count } ,
#endif
#include "js.msg"
#undef MSG_DEF
};
const JSErrorFormatString *
js_GetErrorMessage(void *userRef, const char *locale, const uintN errorNumber)
{
if ((errorNumber > 0) && (errorNumber < JSErr_Limit))
return &js_ErrorFormatString[errorNumber];
return NULL;
}

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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
*
* The contents of this file are subject to the Netscape Public
* License Version 1.1 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.mozilla.org/NPL/
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express oqr
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* The Original Code is Mozilla Communicator client code, released
* March 31, 1998.
*
* The Initial Developer of the Original Code is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All
* Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the
* terms of the GNU Public License (the "GPL"), in which case the
* provisions of the GPL are applicable instead of those above.
* If you wish to allow use of your version of this file only
* under the terms of the GPL and not to allow others to use your
* version of this file under the NPL, indicate your decision by
* deleting the provisions above and replace them with the notice
* and other provisions required by the GPL. If you do not delete
* the provisions above, a recipient may use your version of this
* file under either the NPL or the GPL.
*/
#ifndef jscntxt_h___
#define jscntxt_h___
/*
* JS execution context.
*/
#include "jsarena.h" /* Added by JSIFY */
#include "jsclist.h"
#include "jslong.h"
#include "jsatom.h"
#include "jsconfig.h"
#include "jsgc.h"
#include "jsinterp.h"
#include "jsobj.h"
#include "jsprvtd.h"
#include "jspubtd.h"
#include "jsregexp.h"
JS_BEGIN_EXTERN_C
typedef enum JSGCMode { JS_NO_GC, JS_MAYBE_GC, JS_FORCE_GC } JSGCMode;
typedef enum JSRuntimeState {
JSRTS_DOWN,
JSRTS_LAUNCHING,
JSRTS_UP,
JSRTS_LANDING
} JSRuntimeState;
struct JSRuntime {
JSRuntimeState state;
/* Garbage collector state, used by jsgc.c. */
JSArenaPool gcArenaPool;
JSArenaPool gcFlagsPool;
JSHashTable *gcRootsHash;
JSGCThing *gcFreeList;
jsword gcDisabled;
uint32 gcBytes;
uint32 gcLastBytes;
uint32 gcMaxBytes;
uint32 gcLevel;
uint32 gcNumber;
JSBool gcPoke;
JSGCCallback gcCallback;
uint32 gcMallocBytes;
#ifdef JS_GCMETER
JSGCStats gcStats;
#endif
/* Literal table maintained by jsatom.c functions. */
JSAtomState atomState;
/* Random number generator state, used by jsmath.c. */
JSBool rngInitialized;
int64 rngMultiplier;
int64 rngAddend;
int64 rngMask;
int64 rngSeed;
jsdouble rngDscale;
/* Well-known numbers held for use by this runtime's contexts. */
jsdouble *jsNaN;
jsdouble *jsNegativeInfinity;
jsdouble *jsPositiveInfinity;
/* Empty string held for use by this runtime's contexts. */
JSString *emptyString;
/* List of active contexts sharing this runtime. */
JSCList contextList;
/* These are used for debugging -- see jsprvtd.h and jsdbgapi.h. */
JSTrapHandler interruptHandler;
void *interruptHandlerData;
JSNewScriptHook newScriptHook;
void *newScriptHookData;
JSDestroyScriptHook destroyScriptHook;
void *destroyScriptHookData;
JSTrapHandler debuggerHandler;
void *debuggerHandlerData;
JSSourceHandler sourceHandler;
void *sourceHandlerData;
JSInterpreterHook executeHook;
void *executeHookData;
JSInterpreterHook callHook;
void *callHookData;
JSObjectHook objectHook;
void *objectHookData;
JSTrapHandler throwHook;
void *throwHookData;
JSDebugErrorHook debugErrorHook;
void *debugErrorHookData;
/* More debugging state, see jsdbgapi.c. */
JSCList trapList;
JSCList watchPointList;
/* Weak links to properties, indexed by quickened get/set opcodes. */
/* XXX must come after JSCLists or MSVC alignment bug bites empty lists */
JSPropertyCache propertyCache;
#ifdef JS_THREADSAFE
/* These combine to interlock the GC and new requests. */
PRLock *gcLock;
PRCondVar *gcDone;
PRCondVar *requestDone;
uint32 requestCount;
/* Lock and owning thread pointer for JS_LOCK_RUNTIME. */
PRLock *rtLock;
#ifdef DEBUG
jsword rtLockOwner;
#endif
/* Used to synchronize down/up state change; uses rtLock. */
PRCondVar *stateChange;
#endif
};
#define JS_ENABLE_GC(rt) JS_ATOMIC_ADDREF(&(rt)->gcDisabled, -1);
#define JS_DISABLE_GC(rt) JS_ATOMIC_ADDREF(&(rt)->gcDisabled, 1);
#ifdef JS_ARGUMENT_FORMATTER_DEFINED
/*
* Linked list mapping format strings for JS_{Convert,Push}Arguments{,VA} to
* formatter functions. Elements are sorted in non-increasing format string
* length order.
*/
struct JSArgumentFormatMap {
const char *format;
size_t length;
JSArgumentFormatter formatter;
JSArgumentFormatMap *next;
};
#endif
struct JSContext {
JSCList links;
/* Interpreter activation count. */
uintN interpLevel;
/* Runtime version control identifier and equality operators. */
JSVersion version;
jsbytecode jsop_eq;
jsbytecode jsop_ne;
/* Data shared by threads in an address space. */
JSRuntime *runtime;
/* Stack arena pool and frame pointer register. */
JSArenaPool stackPool;
JSStackFrame *fp;
/* Temporary arena pools used while compiling and decompiling. */
JSArenaPool codePool;
JSArenaPool notePool;
JSArenaPool tempPool;
/* Top-level object and pointer to top stack frame's scope chain. */
JSObject *globalObject;
/* Most recently created things by type, members of the GC's root set. */
JSGCThing *newborn[GCX_NTYPES];
/* Regular expression class statics (XXX not shared globally). */
JSRegExpStatics regExpStatics;
/* State for object and array toSource conversion. */
JSSharpObjectMap sharpObjectMap;
/* Argument formatter support for JS_{Convert,Push}Arguments{,VA}. */
JSArgumentFormatMap *argumentFormatMap;
/* Last message string and trace file for debugging. */
char *lastMessage;
#ifdef DEBUG
void *tracefp;
#endif
/* Per-context optional user callbacks. */
JSBranchCallback branchCallback;
JSErrorReporter errorReporter;
/* Client opaque pointer */
void *data;
/* GC and thread-safe state. */
JSStackFrame *dormantFrameChain; /* dormant stack frame to scan */
#ifdef JS_THREADSAFE
jsword thread;
jsrefcount requestDepth;
JSPackedBool gcActive;
#endif
/* Exception state (NB: throwing is packed with gcActive above). */
JSPackedBool throwing; /* is there a pending exception? */
jsval exception; /* most-recently-thrown exceptin */
uint32 options; /* see jsapi.h for JSOPTION_* */
};
/* Slightly more readable macros, also to hide bitset implementation detail. */
#define JS_HAS_STRICT_OPTION(cx) ((cx)->options & JSOPTION_STRICT)
#define JS_HAS_WERROR_OPTION(cx) ((cx)->options & JSOPTION_WERROR)
extern JSContext *
js_NewContext(JSRuntime *rt, size_t stacksize);
extern void
js_DestroyContext(JSContext *cx, JSGCMode gcmode);
extern JSContext *
js_ContextIterator(JSRuntime *rt, JSContext **iterp);
/*
* Report an exception, which is currently realized as a printf-style format
* string and its arguments.
*/
typedef enum JSErrNum {
#define MSG_DEF(name, number, count, exception, format) \
name = number,
#include "js.msg"
#undef MSG_DEF
JSErr_Limit
} JSErrNum;
extern const JSErrorFormatString *
js_GetErrorMessage(void *userRef, const char *locale, const uintN errorNumber);
#ifdef va_start
extern JSBool
js_ReportErrorVA(JSContext *cx, uintN flags, const char *format, va_list ap);
extern JSBool
js_ReportErrorNumberVA(JSContext *cx, uintN flags, JSErrorCallback callback,
void *userRef, const uintN errorNumber,
JSBool charArgs, va_list ap);
extern JSBool
js_ExpandErrorArguments(JSContext *cx, JSErrorCallback callback,
void *userRef, const uintN errorNumber,
char **message, JSErrorReport *reportp,
JSBool *warningp, JSBool charArgs, va_list ap);
#endif
/*
* Report an exception using a previously composed JSErrorReport.
* XXXbe remove from "friend" API
*/
extern JS_FRIEND_API(void)
js_ReportErrorAgain(JSContext *cx, const char *message, JSErrorReport *report);
extern void
js_ReportIsNotDefined(JSContext *cx, const char *name);
extern JSErrorFormatString js_ErrorFormatString[JSErr_Limit];
JS_END_EXTERN_C
#endif /* jscntxt_h___ */

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mozilla/js/src/jscompat.h Normal file
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/* -*- Mode: C; tab-width: 8 -*-
* Copyright © 1996 Netscape Communications Corporation, All Rights Reserved.
*/
#ifndef jscompat_h___
#define jscompat_h___
/*
* Compatibility glue for various NSPR versions. We must always define int8,
* int16, jsword, and so on to minimize differences with js/ref, no matter what
* the NSPR typedef names may be.
*/
#include "jstypes.h"
#include "jslong.h"
typedef JSIntn intN;
typedef JSUintn uintN;
typedef JSUword jsuword;
typedef JSWord jsword;
typedef float float32;
#define allocPriv allocPool
#endif /* jscompat_h___ */

382
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@@ -0,0 +1,382 @@
/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
*
* The contents of this file are subject to the Netscape Public
* License Version 1.1 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.mozilla.org/NPL/
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express oqr
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* The Original Code is Mozilla Communicator client code, released
* March 31, 1998.
*
* The Initial Developer of the Original Code is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All
* Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the
* terms of the GNU Public License (the "GPL"), in which case the
* provisions of the GPL are applicable instead of those above.
* If you wish to allow use of your version of this file only
* under the terms of the GPL and not to allow others to use your
* version of this file under the NPL, indicate your decision by
* deleting the provisions above and replace them with the notice
* and other provisions required by the GPL. If you do not delete
* the provisions above, a recipient may use your version of this
* file under either the NPL or the GPL.
*/
/*
* JS configuration macros.
*/
#ifndef JS_VERSION
#define JS_VERSION 150
#endif
#if JS_VERSION == 100
#define JS_BUG_AUTO_INDEX_PROPS 1 /* new object o: o.p = v sets o[0] */
#define JS_BUG_NULL_INDEX_PROPS 1 /* o[0] defaults to null, not void */
#define JS_BUG_EMPTY_INDEX_ZERO 1 /* o[""] is equivalent to o[0] */
#define JS_BUG_SHORT_CIRCUIT 1 /* 1 && 1 => true, 1 && 0 => 0 bug */
#define JS_BUG_EAGER_TOSTRING 1 /* o.toString() trumps o.valueOf() */
#define JS_BUG_VOID_TOSTRING 0 /* void 0 + 0 == "undefined0" */
#define JS_BUG_EVAL_THIS_FUN 0 /* eval('this') in function f is f */
#define JS_BUG_EVAL_THIS_SCOPE 0 /* Math.eval('sin(x)') vs. local x */
#define JS_BUG_FALLIBLE_EQOPS 1 /* fallible/intransitive equality ops */
#define JS_BUG_FALLIBLE_TONUM 1 /* fallible ValueToNumber primitive */
#define JS_BUG_WITH_CLOSURE 0 /* with(o)function f(){} sets o.f */
#define JS_BUG_SET_ENUMERATE 1 /* o.p=q flags o.p JSPROP_ENUMERATE */
#define JS_HAS_PROP_DELETE 0 /* delete o.p removes p from o */
#define JS_HAS_CALL_OBJECT 0 /* fun.caller is stack frame obj */
#define JS_HAS_LABEL_STATEMENT 0 /* has break/continue to label: */
#define JS_HAS_DO_WHILE_LOOP 0 /* has do {...} while (b) */
#define JS_HAS_SWITCH_STATEMENT 0 /* has switch (v) {case c: ...} */
#define JS_HAS_SOME_PERL_FUN 0 /* has array.join/reverse/sort */
#define JS_HAS_MORE_PERL_FUN 0 /* has array.push, str.substr, etc */
#define JS_HAS_VALUEOF_HINT 0 /* valueOf(hint) where hint is typeof */
#define JS_HAS_LEXICAL_CLOSURE 0 /* nested functions, lexically closed */
#define JS_HAS_APPLY_FUNCTION 0 /* has fun.apply(obj, argArray) */
#define JS_HAS_CALL_FUNCTION 0 /* has fun.call(obj, arg1, ... argN) */
#define JS_HAS_OBJ_PROTO_PROP 0 /* has o.__proto__ etc. */
#define JS_HAS_REGEXPS 0 /* has perl r.e.s via RegExp, /pat/ */
#define JS_HAS_SEQUENCE_OPS 0 /* has array.slice, string.concat */
#define JS_HAS_INITIALIZERS 0 /* has var o = {'foo': 42, 'bar':3} */
#define JS_HAS_OBJ_WATCHPOINT 0 /* has o.watch and o.unwatch */
#define JS_HAS_EXPORT_IMPORT 0 /* has export fun; import obj.fun */
#define JS_HAS_EVAL_THIS_SCOPE 0 /* Math.eval is same as with (Math) */
#define JS_HAS_TRIPLE_EQOPS 0 /* has === and !== identity eqops */
#define JS_HAS_SHARP_VARS 0 /* has #n=, #n# for object literals */
#define JS_HAS_REPLACE_LAMBDA 0 /* has string.replace(re, lambda) */
#define JS_HAS_SCRIPT_OBJECT 0 /* has (new Script("x++")).exec() */
#define JS_HAS_XDR 0 /* has XDR API and object methods */
#define JS_HAS_EXCEPTIONS 0 /* has exception handling */
#define JS_HAS_UNDEFINED 0 /* has global "undefined" property */
#define JS_HAS_TOSOURCE 0 /* has Object/Array toSource method */
#define JS_HAS_IN_OPERATOR 0 /* has in operator ('p' in {p:1}) */
#define JS_HAS_INSTANCEOF 0 /* has {p:1} instanceof Object */
#define JS_HAS_ARGS_OBJECT 0 /* has minimal ECMA arguments object */
#define JS_HAS_DEBUGGER_KEYWORD 0 /* has hook for debugger keyword */
#define JS_HAS_ERROR_EXCEPTIONS 0 /* has error object hierarchy */
#define JS_HAS_CATCH_GUARD 0 /* has exception handling catch guard */
#define JS_HAS_NEW_OBJ_METHODS 0 /* has Object.prototype query methods */
#define JS_HAS_SPARSE_ARRAYS 0 /* array methods preserve empty elems */
#define JS_HAS_DFLT_MSG_STRINGS 1 /* provides English error messages */
#define JS_HAS_NUMBER_FORMATS 0 /* numbers have formatting methods */
#define JS_HAS_GETTER_SETTER 0 /* has JS2 getter/setter functions */
#define JS_HAS_UNEVAL 0 /* has uneval() top-level function */
#define JS_HAS_CONST 0 /* has JS2 const as alternative var */
#define JS_HAS_FUN_EXPR_STMT 0 /* has function expression statement */
#elif JS_VERSION == 110
#define JS_BUG_AUTO_INDEX_PROPS 0 /* new object o: o.p = v sets o[0] */
#define JS_BUG_NULL_INDEX_PROPS 1 /* o[0] defaults to null, not void */
#define JS_BUG_EMPTY_INDEX_ZERO 1 /* o[""] is equivalent to o[0] */
#define JS_BUG_SHORT_CIRCUIT 1 /* 1 && 1 => true, 1 && 0 => 0 bug */
#define JS_BUG_EAGER_TOSTRING 1 /* o.toString() trumps o.valueOf() */
#define JS_BUG_VOID_TOSTRING 0 /* void 0 + 0 == "undefined0" */
#define JS_BUG_EVAL_THIS_FUN 1 /* eval('this') in function f is f */
#define JS_BUG_EVAL_THIS_SCOPE 1 /* Math.eval('sin(x)') vs. local x */
#define JS_BUG_FALLIBLE_EQOPS 1 /* fallible/intransitive equality ops */
#define JS_BUG_FALLIBLE_TONUM 1 /* fallible ValueToNumber primitive */
#define JS_BUG_WITH_CLOSURE 0 /* with(o)function f(){} sets o.f */
#define JS_BUG_SET_ENUMERATE 1 /* o.p=q flags o.p JSPROP_ENUMERATE */
#define JS_HAS_PROP_DELETE 0 /* delete o.p removes p from o */
#define JS_HAS_CALL_OBJECT 0 /* fun.caller is stack frame obj */
#define JS_HAS_LABEL_STATEMENT 0 /* has break/continue to label: */
#define JS_HAS_DO_WHILE_LOOP 0 /* has do {...} while (b) */
#define JS_HAS_SWITCH_STATEMENT 0 /* has switch (v) {case c: ...} */
#define JS_HAS_SOME_PERL_FUN 1 /* has array.join/reverse/sort */
#define JS_HAS_MORE_PERL_FUN 0 /* has array.push, str.substr, etc */
#define JS_HAS_VALUEOF_HINT 0 /* valueOf(hint) where hint is typeof */
#define JS_HAS_LEXICAL_CLOSURE 0 /* nested functions, lexically closed */
#define JS_HAS_APPLY_FUNCTION 0 /* has apply(fun, arg1, ... argN) */
#define JS_HAS_CALL_FUNCTION 0 /* has fun.call(obj, arg1, ... argN) */
#define JS_HAS_OBJ_PROTO_PROP 0 /* has o.__proto__ etc. */
#define JS_HAS_REGEXPS 0 /* has perl r.e.s via RegExp, /pat/ */
#define JS_HAS_SEQUENCE_OPS 0 /* has array.slice, string.concat */
#define JS_HAS_INITIALIZERS 0 /* has var o = {'foo': 42, 'bar':3} */
#define JS_HAS_OBJ_WATCHPOINT 0 /* has o.watch and o.unwatch */
#define JS_HAS_EXPORT_IMPORT 0 /* has export fun; import obj.fun */
#define JS_HAS_EVAL_THIS_SCOPE 0 /* Math.eval is same as with (Math) */
#define JS_HAS_TRIPLE_EQOPS 0 /* has === and !== identity eqops */
#define JS_HAS_SHARP_VARS 0 /* has #n=, #n# for object literals */
#define JS_HAS_REPLACE_LAMBDA 0 /* has string.replace(re, lambda) */
#define JS_HAS_SCRIPT_OBJECT 0 /* has (new Script("x++")).exec() */
#define JS_HAS_XDR 0 /* has XDR API and object methods */
#define JS_HAS_EXCEPTIONS 0 /* has exception handling */
#define JS_HAS_UNDEFINED 0 /* has global "undefined" property */
#define JS_HAS_TOSOURCE 0 /* has Object/Array toSource method */
#define JS_HAS_IN_OPERATOR 0 /* has in operator ('p' in {p:1}) */
#define JS_HAS_INSTANCEOF 0 /* has {p:1} instanceof Object */
#define JS_HAS_ARGS_OBJECT 0 /* has minimal ECMA arguments object */
#define JS_HAS_DEBUGGER_KEYWORD 0 /* has hook for debugger keyword */
#define JS_HAS_ERROR_EXCEPTIONS 0 /* has error object hierarchy */
#define JS_HAS_CATCH_GUARD 0 /* has exception handling catch guard */
#define JS_HAS_NEW_OBJ_METHODS 0 /* has Object.prototype query methods */
#define JS_HAS_SPARSE_ARRAYS 0 /* array methods preserve empty elems */
#define JS_HAS_DFLT_MSG_STRINGS 1 /* provides English error messages */
#define JS_HAS_NUMBER_FORMATS 0 /* numbers have formatting methods */
#define JS_HAS_GETTER_SETTER 0 /* has JS2 getter/setter functions */
#define JS_HAS_UNEVAL 0 /* has uneval() top-level function */
#define JS_HAS_CONST 0 /* has JS2 const as alternative var */
#define JS_HAS_FUN_EXPR_STMT 0 /* has function expression statement */
#elif JS_VERSION == 120
#define JS_BUG_AUTO_INDEX_PROPS 0 /* new object o: o.p = v sets o[0] */
#define JS_BUG_NULL_INDEX_PROPS 0 /* o[0] defaults to null, not void */
#define JS_BUG_EMPTY_INDEX_ZERO 0 /* o[""] is equivalent to o[0] */
#define JS_BUG_SHORT_CIRCUIT 0 /* 1 && 1 => true, 1 && 0 => 0 bug */
#define JS_BUG_EAGER_TOSTRING 0 /* o.toString() trumps o.valueOf() */
#define JS_BUG_VOID_TOSTRING 1 /* void 0 + 0 == "undefined0" */
#define JS_BUG_EVAL_THIS_FUN 0 /* eval('this') in function f is f */
#define JS_BUG_EVAL_THIS_SCOPE 0 /* Math.eval('sin(x)') vs. local x */
#define JS_BUG_FALLIBLE_EQOPS 0 /* fallible/intransitive equality ops */
#define JS_BUG_FALLIBLE_TONUM 0 /* fallible ValueToNumber primitive */
#define JS_BUG_WITH_CLOSURE 1 /* with(o)function f(){} sets o.f */
#define JS_BUG_SET_ENUMERATE 1 /* o.p=q flags o.p JSPROP_ENUMERATE */
#define JS_HAS_PROP_DELETE 1 /* delete o.p removes p from o */
#define JS_HAS_CALL_OBJECT 1 /* fun.caller is stack frame obj */
#define JS_HAS_LABEL_STATEMENT 1 /* has break/continue to label: */
#define JS_HAS_DO_WHILE_LOOP 1 /* has do {...} while (b) */
#define JS_HAS_SWITCH_STATEMENT 1 /* has switch (v) {case c: ...} */
#define JS_HAS_SOME_PERL_FUN 1 /* has array.join/reverse/sort */
#define JS_HAS_MORE_PERL_FUN 1 /* has array.push, str.substr, etc */
#define JS_HAS_VALUEOF_HINT 1 /* valueOf(hint) where hint is typeof */
#define JS_HAS_LEXICAL_CLOSURE 1 /* nested functions, lexically closed */
#define JS_HAS_APPLY_FUNCTION 1 /* has apply(fun, arg1, ... argN) */
#define JS_HAS_CALL_FUNCTION 0 /* has fun.call(obj, arg1, ... argN) */
#define JS_HAS_OBJ_PROTO_PROP 1 /* has o.__proto__ etc. */
#define JS_HAS_REGEXPS 1 /* has perl r.e.s via RegExp, /pat/ */
#define JS_HAS_SEQUENCE_OPS 1 /* has array.slice, string.concat */
#define JS_HAS_INITIALIZERS 1 /* has var o = {'foo': 42, 'bar':3} */
#define JS_HAS_OBJ_WATCHPOINT 1 /* has o.watch and o.unwatch */
#define JS_HAS_EXPORT_IMPORT 1 /* has export fun; import obj.fun */
#define JS_HAS_EVAL_THIS_SCOPE 1 /* Math.eval is same as with (Math) */
#define JS_HAS_TRIPLE_EQOPS 0 /* has === and !== identity eqops */
#define JS_HAS_SHARP_VARS 0 /* has #n=, #n# for object literals */
#define JS_HAS_REPLACE_LAMBDA 0 /* has string.replace(re, lambda) */
#define JS_HAS_SCRIPT_OBJECT 0 /* has (new Script("x++")).exec() */
#define JS_HAS_XDR 0 /* has XDR API and object methods */
#define JS_HAS_EXCEPTIONS 0 /* has exception handling */
#define JS_HAS_UNDEFINED 0 /* has global "undefined" property */
#define JS_HAS_TOSOURCE 0 /* has Object/Array toSource method */
#define JS_HAS_IN_OPERATOR 0 /* has in operator ('p' in {p:1}) */
#define JS_HAS_INSTANCEOF 0 /* has {p:1} instanceof Object */
#define JS_HAS_ARGS_OBJECT 0 /* has minimal ECMA arguments object */
#define JS_HAS_DEBUGGER_KEYWORD 0 /* has hook for debugger keyword */
#define JS_HAS_ERROR_EXCEPTIONS 0 /* has error object hierarchy */
#define JS_HAS_CATCH_GUARD 0 /* has exception handling catch guard */
#define JS_HAS_NEW_OBJ_METHODS 0 /* has Object.prototype query methods */
#define JS_HAS_SPARSE_ARRAYS 0 /* array methods preserve empty elems */
#define JS_HAS_DFLT_MSG_STRINGS 1 /* provides English error messages */
#define JS_HAS_NUMBER_FORMATS 0 /* numbers have formatting methods */
#define JS_HAS_GETTER_SETTER 0 /* has JS2 getter/setter functions */
#define JS_HAS_UNEVAL 0 /* has uneval() top-level function */
#define JS_HAS_CONST 0 /* has JS2 const as alternative var */
#define JS_HAS_FUN_EXPR_STMT 0 /* has function expression statement */
#elif JS_VERSION == 130
#define JS_BUG_AUTO_INDEX_PROPS 0 /* new object o: o.p = v sets o[0] */
#define JS_BUG_NULL_INDEX_PROPS 0 /* o[0] defaults to null, not void */
#define JS_BUG_EMPTY_INDEX_ZERO 0 /* o[""] is equivalent to o[0] */
#define JS_BUG_SHORT_CIRCUIT 0 /* 1 && 1 => true, 1 && 0 => 0 bug */
#define JS_BUG_EAGER_TOSTRING 0 /* o.toString() trumps o.valueOf() */
#define JS_BUG_VOID_TOSTRING 0 /* void 0 + 0 == "undefined0" */
#define JS_BUG_EVAL_THIS_FUN 0 /* eval('this') in function f is f */
#define JS_BUG_EVAL_THIS_SCOPE 0 /* Math.eval('sin(x)') vs. local x */
#define JS_BUG_FALLIBLE_EQOPS 0 /* fallible/intransitive equality ops */
#define JS_BUG_FALLIBLE_TONUM 0 /* fallible ValueToNumber primitive */
#define JS_BUG_WITH_CLOSURE 1 /* with(o)function f(){} sets o.f */
#define JS_BUG_SET_ENUMERATE 0 /* o.p=q flags o.p JSPROP_ENUMERATE */
#define JS_HAS_PROP_DELETE 1 /* delete o.p removes p from o */
#define JS_HAS_CALL_OBJECT 1 /* fun.caller is stack frame obj */
#define JS_HAS_LABEL_STATEMENT 1 /* has break/continue to label: */
#define JS_HAS_DO_WHILE_LOOP 1 /* has do {...} while (b) */
#define JS_HAS_SWITCH_STATEMENT 1 /* has switch (v) {case c: ...} */
#define JS_HAS_SOME_PERL_FUN 1 /* has array.join/reverse/sort */
#define JS_HAS_MORE_PERL_FUN 1 /* has array.push, str.substr, etc */
#define JS_HAS_VALUEOF_HINT 1 /* valueOf(hint) where hint is typeof */
#define JS_HAS_LEXICAL_CLOSURE 1 /* nested functions, lexically closed */
#define JS_HAS_APPLY_FUNCTION 1 /* has apply(fun, arg1, ... argN) */
#define JS_HAS_CALL_FUNCTION 1 /* has fun.call(obj, arg1, ... argN) */
#define JS_HAS_OBJ_PROTO_PROP 1 /* has o.__proto__ etc. */
#define JS_HAS_REGEXPS 1 /* has perl r.e.s via RegExp, /pat/ */
#define JS_HAS_SEQUENCE_OPS 1 /* has array.slice, string.concat */
#define JS_HAS_INITIALIZERS 1 /* has var o = {'foo': 42, 'bar':3} */
#define JS_HAS_OBJ_WATCHPOINT 1 /* has o.watch and o.unwatch */
#define JS_HAS_EXPORT_IMPORT 1 /* has export fun; import obj.fun */
#define JS_HAS_EVAL_THIS_SCOPE 1 /* Math.eval is same as with (Math) */
#define JS_HAS_TRIPLE_EQOPS 1 /* has === and !== identity eqops */
#define JS_HAS_SHARP_VARS 1 /* has #n=, #n# for object literals */
#define JS_HAS_REPLACE_LAMBDA 1 /* has string.replace(re, lambda) */
#define JS_HAS_SCRIPT_OBJECT 1 /* has (new Script("x++")).exec() */
#define JS_HAS_XDR 1 /* has XDR API and object methods */
#define JS_HAS_EXCEPTIONS 0 /* has exception handling */
#define JS_HAS_UNDEFINED 1 /* has global "undefined" property */
#define JS_HAS_TOSOURCE 1 /* has Object/Array toSource method */
#define JS_HAS_IN_OPERATOR 0 /* has in operator ('p' in {p:1}) */
#define JS_HAS_INSTANCEOF 0 /* has {p:1} instanceof Object */
#define JS_HAS_ARGS_OBJECT 1 /* has minimal ECMA arguments object */
#define JS_HAS_DEBUGGER_KEYWORD 1 /* has hook for debugger keyword */
#define JS_HAS_ERROR_EXCEPTIONS 0 /* has error object hierarchy */
#define JS_HAS_CATCH_GUARD 0 /* has exception handling catch guard */
#define JS_HAS_NEW_OBJ_METHODS 0 /* has Object.prototype query methods */
#define JS_HAS_SPARSE_ARRAYS 0 /* array methods preserve empty elems */
#define JS_HAS_DFLT_MSG_STRINGS 1 /* provides English error messages */
#define JS_HAS_NUMBER_FORMATS 0 /* numbers have formatting methods */
#define JS_HAS_GETTER_SETTER 0 /* has JS2 getter/setter functions */
#define JS_HAS_UNEVAL 0 /* has uneval() top-level function */
#define JS_HAS_CONST 0 /* has JS2 const as alternative var */
#define JS_HAS_FUN_EXPR_STMT 0 /* has function expression statement */
#elif JS_VERSION == 140
#define JS_BUG_AUTO_INDEX_PROPS 0 /* new object o: o.p = v sets o[0] */
#define JS_BUG_NULL_INDEX_PROPS 0 /* o[0] defaults to null, not void */
#define JS_BUG_EMPTY_INDEX_ZERO 0 /* o[""] is equivalent to o[0] */
#define JS_BUG_SHORT_CIRCUIT 0 /* 1 && 1 => true, 1 && 0 => 0 bug */
#define JS_BUG_EAGER_TOSTRING 0 /* o.toString() trumps o.valueOf() */
#define JS_BUG_VOID_TOSTRING 0 /* void 0 + 0 == "undefined0" */
#define JS_BUG_EVAL_THIS_FUN 0 /* eval('this') in function f is f */
#define JS_BUG_EVAL_THIS_SCOPE 0 /* Math.eval('sin(x)') vs. local x */
#define JS_BUG_FALLIBLE_EQOPS 0 /* fallible/intransitive equality ops */
#define JS_BUG_FALLIBLE_TONUM 0 /* fallible ValueToNumber primitive */
#define JS_BUG_WITH_CLOSURE 1 /* with(o)function f(){} sets o.f */
#define JS_BUG_SET_ENUMERATE 0 /* o.p=q flags o.p JSPROP_ENUMERATE */
#define JS_HAS_PROP_DELETE 1 /* delete o.p removes p from o */
#define JS_HAS_CALL_OBJECT 1 /* fun.caller is stack frame obj */
#define JS_HAS_LABEL_STATEMENT 1 /* has break/continue to label: */
#define JS_HAS_DO_WHILE_LOOP 1 /* has do {...} while (b) */
#define JS_HAS_SWITCH_STATEMENT 1 /* has switch (v) {case c: ...} */
#define JS_HAS_SOME_PERL_FUN 1 /* has array.join/reverse/sort */
#define JS_HAS_MORE_PERL_FUN 1 /* has array.push, str.substr, etc */
#define JS_HAS_VALUEOF_HINT 1 /* valueOf(hint) where hint is typeof */
#define JS_HAS_LEXICAL_CLOSURE 1 /* nested functions, lexically closed */
#define JS_HAS_APPLY_FUNCTION 1 /* has apply(fun, arg1, ... argN) */
#define JS_HAS_CALL_FUNCTION 1 /* has fun.call(obj, arg1, ... argN) */
#define JS_HAS_OBJ_PROTO_PROP 1 /* has o.__proto__ etc. */
#define JS_HAS_REGEXPS 1 /* has perl r.e.s via RegExp, /pat/ */
#define JS_HAS_SEQUENCE_OPS 1 /* has array.slice, string.concat */
#define JS_HAS_INITIALIZERS 1 /* has var o = {'foo': 42, 'bar':3} */
#define JS_HAS_OBJ_WATCHPOINT 1 /* has o.watch and o.unwatch */
#define JS_HAS_EXPORT_IMPORT 1 /* has export fun; import obj.fun */
#define JS_HAS_EVAL_THIS_SCOPE 1 /* Math.eval is same as with (Math) */
#define JS_HAS_TRIPLE_EQOPS 1 /* has === and !== identity eqops */
#define JS_HAS_SHARP_VARS 1 /* has #n=, #n# for object literals */
#define JS_HAS_REPLACE_LAMBDA 1 /* has string.replace(re, lambda) */
#define JS_HAS_SCRIPT_OBJECT 1 /* has (new Script("x++")).exec() */
#define JS_HAS_XDR 1 /* has XDR API and object methods */
#define JS_HAS_EXCEPTIONS 1 /* has exception handling */
#define JS_HAS_UNDEFINED 1 /* has global "undefined" property */
#define JS_HAS_TOSOURCE 1 /* has Object/Array toSource method */
#define JS_HAS_IN_OPERATOR 1 /* has in operator ('p' in {p:1}) */
#define JS_HAS_INSTANCEOF 1 /* has {p:1} instanceof Object */
#define JS_HAS_ARGS_OBJECT 1 /* has minimal ECMA arguments object */
#define JS_HAS_DEBUGGER_KEYWORD 1 /* has hook for debugger keyword */
#define JS_HAS_ERROR_EXCEPTIONS 0 /* rt errors reflected as exceptions */
#define JS_HAS_CATCH_GUARD 0 /* has exception handling catch guard */
#define JS_HAS_NEW_OBJ_METHODS 0 /* has Object.prototype query methods */
#define JS_HAS_SPARSE_ARRAYS 0 /* array methods preserve empty elems */
#define JS_HAS_DFLT_MSG_STRINGS 1 /* provides English error messages */
#define JS_HAS_NUMBER_FORMATS 0 /* numbers have formatting methods */
#define JS_HAS_GETTER_SETTER 0 /* has JS2 getter/setter functions */
#define JS_HAS_UNEVAL 0 /* has uneval() top-level function */
#define JS_HAS_CONST 0 /* has JS2 const as alternative var */
#define JS_HAS_FUN_EXPR_STMT 0 /* has function expression statement */
#elif JS_VERSION == 150
#define JS_BUG_AUTO_INDEX_PROPS 0 /* new object o: o.p = v sets o[0] */
#define JS_BUG_NULL_INDEX_PROPS 0 /* o[0] defaults to null, not void */
#define JS_BUG_EMPTY_INDEX_ZERO 0 /* o[""] is equivalent to o[0] */
#define JS_BUG_SHORT_CIRCUIT 0 /* 1 && 1 => true, 1 && 0 => 0 bug */
#define JS_BUG_EAGER_TOSTRING 0 /* o.toString() trumps o.valueOf() */
#define JS_BUG_VOID_TOSTRING 0 /* void 0 + 0 == "undefined0" */
#define JS_BUG_EVAL_THIS_FUN 0 /* eval('this') in function f is f */
#define JS_BUG_EVAL_THIS_SCOPE 0 /* Math.eval('sin(x)') vs. local x */
#define JS_BUG_FALLIBLE_EQOPS 0 /* fallible/intransitive equality ops */
#define JS_BUG_FALLIBLE_TONUM 0 /* fallible ValueToNumber primitive */
#define JS_BUG_WITH_CLOSURE 1 /* with(o)function f(){} sets o.f */
#define JS_BUG_SET_ENUMERATE 0 /* o.p=q flags o.p JSPROP_ENUMERATE */
#define JS_HAS_PROP_DELETE 1 /* delete o.p removes p from o */
#define JS_HAS_CALL_OBJECT 1 /* fun.caller is stack frame obj */
#define JS_HAS_LABEL_STATEMENT 1 /* has break/continue to label: */
#define JS_HAS_DO_WHILE_LOOP 1 /* has do {...} while (b) */
#define JS_HAS_SWITCH_STATEMENT 1 /* has switch (v) {case c: ...} */
#define JS_HAS_SOME_PERL_FUN 1 /* has array.join/reverse/sort */
#define JS_HAS_MORE_PERL_FUN 1 /* has array.push, str.substr, etc */
#define JS_HAS_VALUEOF_HINT 1 /* valueOf(hint) where hint is typeof */
#define JS_HAS_LEXICAL_CLOSURE 1 /* nested functions, lexically closed */
#define JS_HAS_APPLY_FUNCTION 1 /* has apply(fun, arg1, ... argN) */
#define JS_HAS_CALL_FUNCTION 1 /* has fun.call(obj, arg1, ... argN) */
#define JS_HAS_OBJ_PROTO_PROP 1 /* has o.__proto__ etc. */
#define JS_HAS_REGEXPS 1 /* has perl r.e.s via RegExp, /pat/ */
#define JS_HAS_SEQUENCE_OPS 1 /* has array.slice, string.concat */
#define JS_HAS_INITIALIZERS 1 /* has var o = {'foo': 42, 'bar':3} */
#define JS_HAS_OBJ_WATCHPOINT 1 /* has o.watch and o.unwatch */
#define JS_HAS_EXPORT_IMPORT 1 /* has export fun; import obj.fun */
#define JS_HAS_EVAL_THIS_SCOPE 1 /* Math.eval is same as with (Math) */
#define JS_HAS_TRIPLE_EQOPS 1 /* has === and !== identity eqops */
#define JS_HAS_SHARP_VARS 1 /* has #n=, #n# for object literals */
#define JS_HAS_REPLACE_LAMBDA 1 /* has string.replace(re, lambda) */
#define JS_HAS_SCRIPT_OBJECT 1 /* has (new Script("x++")).exec() */
#define JS_HAS_XDR 1 /* has XDR API and object methods */
#define JS_HAS_EXCEPTIONS 1 /* has exception handling */
#define JS_HAS_UNDEFINED 1 /* has global "undefined" property */
#define JS_HAS_TOSOURCE 1 /* has Object/Array toSource method */
#define JS_HAS_IN_OPERATOR 1 /* has in operator ('p' in {p:1}) */
#define JS_HAS_INSTANCEOF 1 /* has {p:1} instanceof Object */
#define JS_HAS_ARGS_OBJECT 1 /* has minimal ECMA arguments object */
#define JS_HAS_DEBUGGER_KEYWORD 1 /* has hook for debugger keyword */
#define JS_HAS_ERROR_EXCEPTIONS 1 /* rt errors reflected as exceptions */
#define JS_HAS_CATCH_GUARD 1 /* has exception handling catch guard */
#define JS_HAS_NEW_OBJ_METHODS 1 /* has Object.prototype query methods */
#define JS_HAS_SPARSE_ARRAYS 0 /* array methods preserve empty elems */
#define JS_HAS_DFLT_MSG_STRINGS 1 /* provides English error messages */
#define JS_HAS_NUMBER_FORMATS 1 /* numbers have formatting methods */
#define JS_HAS_GETTER_SETTER 1 /* has JS2 getter/setter functions */
#define JS_HAS_UNEVAL 1 /* has uneval() top-level function */
#define JS_HAS_CONST 1 /* has JS2 const as alternative var */
#define JS_HAS_FUN_EXPR_STMT 1 /* has function expression statement */
#else
#error "unknown JS_VERSION"
#endif

140
mozilla/js/src/jsconfig.mk Normal file
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@@ -0,0 +1,140 @@
ifndef OBJDIR
ifdef OBJDIR_NAME
OBJDIR = $(OBJDIR_NAME)
endif
endif
NSPR_VERSION = v3.1
NSPR_LOCAL = $(MOZ_DEPTH)/dist/$(OBJDIR)/nspr
NSPR_DIST = $(MOZ_DEPTH)/dist/$(OBJDIR)
NSPR_OBJDIR = $(OBJDIR)
ifeq ($(OS_ARCH), SunOS)
NSPR_OBJDIR := $(subst _sparc,,$(NSPR_OBJDIR))
endif
ifeq ($(OS_ARCH), Linux)
LINUX_REL := $(shell uname -r)
ifneq (,$(findstring 2.0,$(LINUX_REL)))
NSPR_OBJDIR := $(subst _All,2.0_x86_glibc_PTH,$(NSPR_OBJDIR))
else
NSPR_OBJDIR := $(subst _All,2.2_x86_glibc_PTH,$(NSPR_OBJDIR))
endif
endif
ifeq ($(OS_ARCH), AIX)
NSPR_OBJDIR := $(subst 4.1,4.2,$(NSPR_OBJDIR))
endif
ifeq ($(OS_CONFIG), IRIX6.2)
NSPR_OBJDIR := $(subst 6.2,6.2_n32_PTH,$(NSPR_OBJDIR))
endif
ifeq ($(OS_CONFIG), IRIX6.5)
NSPR_OBJDIR := $(subst 6.5,6.5_n32_PTH,$(NSPR_OBJDIR))
endif
ifeq ($(OS_ARCH), WINNT)
ifeq ($(OBJDIR), WIN32_D.OBJ)
NSPR_OBJDIR = WINNT4.0_DBG.OBJ
endif
ifeq ($(OBJDIR), WIN32_O.OBJ)
NSPR_OBJDIR = WINNT4.0_OPT.OBJ
endif
endif
NSPR_SHARED = /share/builds/components/nspr20/$(NSPR_VERSION)/$(NSPR_OBJDIR)
ifeq ($(OS_ARCH), WINNT)
NSPR_SHARED = nspr20/$(NSPR_VERSION)/$(NSPR_OBJDIR)
endif
NSPR_VERSIONFILE = $(NSPR_LOCAL)/Version
NSPR_CURVERSION := $(shell cat $(NSPR_VERSIONFILE))
get_nspr:
@echo "Grabbing NSPR component..."
ifeq ($(NSPR_VERSION), $(NSPR_CURVERSION))
@echo "No need, NSPR is up to date in this tree (ver=$(NSPR_VERSION))."
else
mkdir -p $(NSPR_LOCAL)
mkdir -p $(NSPR_DIST)
ifneq ($(OS_ARCH), WINNT)
cp $(NSPR_SHARED)/*.jar $(NSPR_LOCAL)
else
sh $(MOZ_DEPTH)/../reltools/compftp.sh $(NSPR_SHARED) $(NSPR_LOCAL) *.jar
endif
unzip -o $(NSPR_LOCAL)/mdbinary.jar -d $(NSPR_DIST)
mkdir -p $(NSPR_DIST)/include
unzip -o $(NSPR_LOCAL)/mdheader.jar -d $(NSPR_DIST)/include
rm -rf $(NSPR_DIST)/META-INF
rm -rf $(NSPR_DIST)/include/META-INF
echo $(NSPR_VERSION) > $(NSPR_VERSIONFILE)
endif
SHIP_DIST = $(MOZ_DEPTH)/dist/$(OBJDIR)
SHIP_DIR = $(SHIP_DIST)/SHIP
SHIP_LIBS = libjs.$(SO_SUFFIX) libjs.a
ifdef JS_LIVECONNECT
SHIP_LIBS += libjsj.$(SO_SUFFIX) libjsj.a
endif
ifeq ($(OS_ARCH), WINNT)
SHIP_LIBS = js32.dll js32.lib
ifdef JS_LIVECONNECT
SHIP_LIBS += jsj.dll jsj.lib
endif
endif
SHIP_LIBS += $(LCJAR)
SHIP_LIBS := $(addprefix $(SHIP_DIST)/lib/, $(SHIP_LIBS))
SHIP_INCS = js*.h prmjtime.h resource.h *.msg *.tbl
ifdef JS_LIVECONNECT
SHIP_INCS += netscape*.h nsC*.h nsI*.h
endif
SHIP_INCS := $(addprefix $(SHIP_DIST)/include/, $(SHIP_INCS))
SHIP_BINS = js
ifdef JS_LIVECONNECT
SHIP_BINS += lcshell
endif
ifeq ($(OS_ARCH), WINNT)
SHIP_BINS := $(addsuffix .exe, $(SHIP_BINS))
endif
SHIP_BINS := $(addprefix $(SHIP_DIST)/bin/, $(SHIP_BINS))
ifdef BUILD_OPT
JSREFJAR = jsref_opt.jar
else
ifdef BUILD_IDG
JSREFJAR = jsref_idg.jar
else
JSREFJAR = jsref_dbg.jar
endif
endif
ship:
mkdir -p $(SHIP_DIR)/lib
mkdir -p $(SHIP_DIR)/include
mkdir -p $(SHIP_DIR)/bin
cp $(SHIP_LIBS) $(SHIP_DIR)/lib
cp $(SHIP_INCS) $(SHIP_DIR)/include
cp $(SHIP_BINS) $(SHIP_DIR)/bin
cd $(SHIP_DIR); \
zip -r $(JSREFJAR) bin lib include
ifdef BUILD_SHIP
cp $(SHIP_DIR)/$(JSREFJAR) $(BUILD_SHIP)
endif
CWD = $(shell pwd)
shipSource: $(SHIP_DIR)/jsref_src.lst .FORCE
mkdir -p $(SHIP_DIR)
cd $(MOZ_DEPTH)/.. ; \
zip $(CWD)/$(SHIP_DIR)/jsref_src.jar -@ < $(CWD)/$(SHIP_DIR)/jsref_src.lst
ifdef BUILD_SHIP
cp $(SHIP_DIR)/jsref_src.jar $(BUILD_SHIP)
endif
JSREFSRCDIRS := $(shell cat $(DEPTH)/SpiderMonkey.rsp)
$(SHIP_DIR)/jsref_src.lst: .FORCE
mkdir -p $(SHIP_DIR)
rm -f $@
touch $@
for d in $(JSREFSRCDIRS); do \
cd $(MOZ_DEPTH)/..; \
ls -1 -d $$d | grep -v CVS | grep -v \.OBJ >> $(CWD)/$@; \
cd $(CWD); \
done
.FORCE:

318
mozilla/js/src/jscpucfg.c Normal file
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@@ -0,0 +1,318 @@
/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
*
* The contents of this file are subject to the Netscape Public
* License Version 1.1 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.mozilla.org/NPL/
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express oqr
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* The Original Code is Mozilla Communicator client code, released
* March 31, 1998.
*
* The Initial Developer of the Original Code is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All
* Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the
* terms of the GNU Public License (the "GPL"), in which case the
* provisions of the GPL are applicable instead of those above.
* If you wish to allow use of your version of this file only
* under the terms of the GPL and not to allow others to use your
* version of this file under the NPL, indicate your decision by
* deleting the provisions above and replace them with the notice
* and other provisions required by the GPL. If you do not delete
* the provisions above, a recipient may use your version of this
* file under either the NPL or the GPL.
*/
/*
* Generate CPU-specific bit-size and similar #defines.
*/
#include <stdio.h>
#ifdef CROSS_COMPILE
#include <prtypes.h>
#define INT64 PRInt64
#else
#ifdef __MWERKS__
#define XP_MAC 1
#endif
/************************************************************************/
/* Generate cpucfg.h */
#ifdef XP_MAC
#include <Types.h>
#define INT64 UnsignedWide
#else
#ifdef XP_PC
#ifdef WIN32
#if defined(__GNUC__)
#define INT64 long long
#else
#define INT64 _int64
#endif /* __GNUC__ */
#else
#define INT64 long
#endif
#else
#if defined(HPUX) || defined(__QNX__) || defined(_SCO_DS) || defined(UNIXWARE)
#define INT64 long
#else
#define INT64 long long
#endif
#endif
#endif
#endif /* CROSS_COMPILE */
typedef void *prword;
struct align_short {
char c;
short a;
};
struct align_int {
char c;
int a;
};
struct align_long {
char c;
long a;
};
struct align_int64 {
char c;
INT64 a;
};
struct align_fakelonglong {
char c;
struct {
long hi, lo;
} a;
};
struct align_float {
char c;
float a;
};
struct align_double {
char c;
double a;
};
struct align_pointer {
char c;
void *a;
};
struct align_prword {
char c;
prword a;
};
#define ALIGN_OF(type) \
(((char*)&(((struct align_##type *)0)->a)) - ((char*)0))
unsigned int bpb;
static int Log2(unsigned int n)
{
int log2 = 0;
if (n & (n-1))
log2++;
if (n >> 16)
log2 += 16, n >>= 16;
if (n >> 8)
log2 += 8, n >>= 8;
if (n >> 4)
log2 += 4, n >>= 4;
if (n >> 2)
log2 += 2, n >>= 2;
if (n >> 1)
log2++;
return log2;
}
/* We assume that int's are 32 bits */
static void do64(void)
{
union {
long i;
char c[4];
} u;
u.i = 0x01020304;
if (u.c[0] == 0x01) {
printf("#undef IS_LITTLE_ENDIAN\n");
printf("#define IS_BIG_ENDIAN 1\n\n");
} else {
printf("#define IS_LITTLE_ENDIAN 1\n");
printf("#undef IS_BIG_ENDIAN\n\n");
}
}
static void do32(void)
{
union {
long i;
char c[4];
} u;
u.i = 0x01020304;
if (u.c[0] == 0x01) {
printf("#undef IS_LITTLE_ENDIAN\n");
printf("#define IS_BIG_ENDIAN 1\n\n");
} else {
printf("#define IS_LITTLE_ENDIAN 1\n");
printf("#undef IS_BIG_ENDIAN\n\n");
}
}
/*
* Conceivably this could actually be used, but there is lots of code out
* there with ands and shifts in it that assumes a byte is exactly 8 bits,
* so forget about porting THIS code to all those non 8 bit byte machines.
*/
static void BitsPerByte(void)
{
bpb = 8;
}
int main(int argc, char **argv)
{
int sizeof_char, sizeof_short, sizeof_int, sizeof_int64, sizeof_long,
sizeof_float, sizeof_double, sizeof_word, sizeof_dword;
int bits_per_int64_log2, align_of_short, align_of_int, align_of_long,
align_of_int64, align_of_float, align_of_double, align_of_pointer,
align_of_word;
BitsPerByte();
printf("#ifndef js_cpucfg___\n");
printf("#define js_cpucfg___\n\n");
printf("/* AUTOMATICALLY GENERATED - DO NOT EDIT */\n\n");
#ifdef CROSS_COMPILE
#if defined(IS_LITTLE_ENDIAN)
printf("#define IS_LITTLE_ENDIAN 1\n");
printf("#undef IS_BIG_ENDIAN\n\n");
#elif defined(IS_BIG_ENDIAN)
printf("#undef IS_LITTLE_ENDIAN\n");
printf("#define IS_BIG_ENDIAN 1\n\n");
#else
#error "Endianess not defined."
#endif
sizeof_char = PR_BYTES_PER_BYTE;
sizeof_short = PR_BYTES_PER_SHORT;
sizeof_int = PR_BYTES_PER_INT;
sizeof_int64 = PR_BYTES_PER_INT64;
sizeof_long = PR_BYTES_PER_LONG;
sizeof_float = PR_BYTES_PER_FLOAT;
sizeof_double = PR_BYTES_PER_DOUBLE;
sizeof_word = PR_BYTES_PER_WORD;
sizeof_dword = PR_BYTES_PER_DWORD;
bits_per_int64_log2 = PR_BITS_PER_INT64_LOG2;
align_of_short = PR_ALIGN_OF_SHORT;
align_of_int = PR_ALIGN_OF_INT;
align_of_long = PR_ALIGN_OF_LONG;
align_of_int64 = PR_ALIGN_OF_INT64;
align_of_float = PR_ALIGN_OF_FLOAT;
align_of_double = PR_ALIGN_OF_DOUBLE;
align_of_pointer = PR_ALIGN_OF_POINTER;
align_of_word = PR_ALIGN_OF_WORD;
#else /* !CROSS_COMPILE */
if (sizeof(long) == 8) {
do64();
} else {
do32();
}
sizeof_char = sizeof(char);
sizeof_short = sizeof(short);
sizeof_int = sizeof(int);
sizeof_int64 = 8;
sizeof_long = sizeof(long);
sizeof_float = sizeof(float);
sizeof_double = sizeof(double);
sizeof_word = sizeof(prword);
sizeof_dword = 8;
bits_per_int64_log2 = 6;
align_of_short = ALIGN_OF(short);
align_of_int = ALIGN_OF(int);
align_of_long = ALIGN_OF(long);
if (sizeof(INT64) < 8) {
/* this machine doesn't actually support int64's */
align_of_int64 = ALIGN_OF(fakelonglong);
} else {
align_of_int64 = ALIGN_OF(int64);
}
align_of_float = ALIGN_OF(float);
align_of_double = ALIGN_OF(double);
align_of_pointer = ALIGN_OF(pointer);
align_of_word = ALIGN_OF(prword);
#endif /* CROSS_COMPILE */
printf("#define JS_BYTES_PER_BYTE %dL\n", sizeof_char);
printf("#define JS_BYTES_PER_SHORT %dL\n", sizeof_short);
printf("#define JS_BYTES_PER_INT %dL\n", sizeof_int);
printf("#define JS_BYTES_PER_INT64 %dL\n", sizeof_int64);
printf("#define JS_BYTES_PER_LONG %dL\n", sizeof_long);
printf("#define JS_BYTES_PER_FLOAT %dL\n", sizeof_float);
printf("#define JS_BYTES_PER_DOUBLE %dL\n", sizeof_double);
printf("#define JS_BYTES_PER_WORD %dL\n", sizeof_word);
printf("#define JS_BYTES_PER_DWORD %dL\n", sizeof_dword);
printf("\n");
printf("#define JS_BITS_PER_BYTE %dL\n", bpb);
printf("#define JS_BITS_PER_SHORT %dL\n", bpb * sizeof_short);
printf("#define JS_BITS_PER_INT %dL\n", bpb * sizeof_int);
printf("#define JS_BITS_PER_INT64 %dL\n", bpb * sizeof_int64);
printf("#define JS_BITS_PER_LONG %dL\n", bpb * sizeof_long);
printf("#define JS_BITS_PER_FLOAT %dL\n", bpb * sizeof_float);
printf("#define JS_BITS_PER_DOUBLE %dL\n", bpb * sizeof_double);
printf("#define JS_BITS_PER_WORD %dL\n", bpb * sizeof_word);
printf("\n");
printf("#define JS_BITS_PER_BYTE_LOG2 %dL\n", Log2(bpb));
printf("#define JS_BITS_PER_SHORT_LOG2 %dL\n", Log2(bpb * sizeof_short));
printf("#define JS_BITS_PER_INT_LOG2 %dL\n", Log2(bpb * sizeof_int));
printf("#define JS_BITS_PER_INT64_LOG2 %dL\n", bits_per_int64_log2);
printf("#define JS_BITS_PER_LONG_LOG2 %dL\n", Log2(bpb * sizeof_long));
printf("#define JS_BITS_PER_FLOAT_LOG2 %dL\n", Log2(bpb * sizeof_float));
printf("#define JS_BITS_PER_DOUBLE_LOG2 %dL\n", Log2(bpb * sizeof_double));
printf("#define JS_BITS_PER_WORD_LOG2 %dL\n", Log2(bpb * sizeof_word));
printf("\n");
printf("#define JS_ALIGN_OF_SHORT %dL\n", align_of_short);
printf("#define JS_ALIGN_OF_INT %dL\n", align_of_int);
printf("#define JS_ALIGN_OF_LONG %dL\n", align_of_long);
printf("#define JS_ALIGN_OF_INT64 %dL\n", align_of_int64);
printf("#define JS_ALIGN_OF_FLOAT %dL\n", align_of_float);
printf("#define JS_ALIGN_OF_DOUBLE %dL\n", align_of_double);
printf("#define JS_ALIGN_OF_POINTER %dL\n", align_of_pointer);
printf("#define JS_ALIGN_OF_WORD %dL\n", align_of_word);
printf("\n");
printf("#define JS_BYTES_PER_WORD_LOG2 %dL\n", Log2(sizeof_word));
printf("#define JS_BYTES_PER_DWORD_LOG2 %dL\n", Log2(sizeof_dword));
printf("#define JS_WORDS_PER_DWORD_LOG2 %dL\n", Log2(sizeof_dword/sizeof_word));
printf("\n");
printf("#endif /* js_cpucfg___ */\n");
return 0;
}

191
mozilla/js/src/jscpucfg.h Normal file
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@@ -0,0 +1,191 @@
/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
*
* The contents of this file are subject to the Netscape Public
* License Version 1.1 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.mozilla.org/NPL/
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express oqr
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* The Original Code is Mozilla Communicator client code, released
* March 31, 1998.
*
* The Initial Developer of the Original Code is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All
* Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the
* terms of the GNU Public License (the "GPL"), in which case the
* provisions of the GPL are applicable instead of those above.
* If you wish to allow use of your version of this file only
* under the terms of the GPL and not to allow others to use your
* version of this file under the NPL, indicate your decision by
* deleting the provisions above and replace them with the notice
* and other provisions required by the GPL. If you do not delete
* the provisions above, a recipient may use your version of this
* file under either the NPL or the GPL.
*/
#ifndef js_cpucfg___
#define js_cpucfg___
#include "jsosdep.h"
#ifdef XP_MAC
#undef IS_LITTLE_ENDIAN
#define IS_BIG_ENDIAN 1
#define JS_BYTES_PER_BYTE 1L
#define JS_BYTES_PER_SHORT 2L
#define JS_BYTES_PER_INT 4L
#define JS_BYTES_PER_INT64 8L
#define JS_BYTES_PER_LONG 4L
#define JS_BYTES_PER_FLOAT 4L
#define JS_BYTES_PER_DOUBLE 8L
#define JS_BYTES_PER_WORD 4L
#define JS_BYTES_PER_DWORD 8L
#define JS_BITS_PER_BYTE 8L
#define JS_BITS_PER_SHORT 16L
#define JS_BITS_PER_INT 32L
#define JS_BITS_PER_INT64 64L
#define JS_BITS_PER_LONG 32L
#define JS_BITS_PER_FLOAT 32L
#define JS_BITS_PER_DOUBLE 64L
#define JS_BITS_PER_WORD 32L
#define JS_BITS_PER_BYTE_LOG2 3L
#define JS_BITS_PER_SHORT_LOG2 4L
#define JS_BITS_PER_INT_LOG2 5L
#define JS_BITS_PER_INT64_LOG2 6L
#define JS_BITS_PER_LONG_LOG2 5L
#define JS_BITS_PER_FLOAT_LOG2 5L
#define JS_BITS_PER_DOUBLE_LOG2 6L
#define JS_BITS_PER_WORD_LOG2 5L
#define JS_ALIGN_OF_SHORT 2L
#define JS_ALIGN_OF_INT 4L
#define JS_ALIGN_OF_LONG 4L
#define JS_ALIGN_OF_INT64 2L
#define JS_ALIGN_OF_FLOAT 4L
#define JS_ALIGN_OF_DOUBLE 4L
#define JS_ALIGN_OF_POINTER 4L
#define JS_ALIGN_OF_WORD 4L
#define JS_BYTES_PER_WORD_LOG2 2L
#define JS_BYTES_PER_DWORD_LOG2 3L
#define PR_WORDS_PER_DWORD_LOG2 1L
#elif defined(XP_PC)
#ifdef _WIN32
#define IS_LITTLE_ENDIAN 1
#undef IS_BIG_ENDIAN
#define JS_BYTES_PER_BYTE 1L
#define JS_BYTES_PER_SHORT 2L
#define JS_BYTES_PER_INT 4L
#define JS_BYTES_PER_INT64 8L
#define JS_BYTES_PER_LONG 4L
#define JS_BYTES_PER_FLOAT 4L
#define JS_BYTES_PER_DOUBLE 8L
#define JS_BYTES_PER_WORD 4L
#define JS_BYTES_PER_DWORD 8L
#define JS_BITS_PER_BYTE 8L
#define JS_BITS_PER_SHORT 16L
#define JS_BITS_PER_INT 32L
#define JS_BITS_PER_INT64 64L
#define JS_BITS_PER_LONG 32L
#define JS_BITS_PER_FLOAT 32L
#define JS_BITS_PER_DOUBLE 64L
#define JS_BITS_PER_WORD 32L
#define JS_BITS_PER_BYTE_LOG2 3L
#define JS_BITS_PER_SHORT_LOG2 4L
#define JS_BITS_PER_INT_LOG2 5L
#define JS_BITS_PER_INT64_LOG2 6L
#define JS_BITS_PER_LONG_LOG2 5L
#define JS_BITS_PER_FLOAT_LOG2 5L
#define JS_BITS_PER_DOUBLE_LOG2 6L
#define JS_BITS_PER_WORD_LOG2 5L
#define JS_ALIGN_OF_SHORT 2L
#define JS_ALIGN_OF_INT 4L
#define JS_ALIGN_OF_LONG 4L
#define JS_ALIGN_OF_INT64 8L
#define JS_ALIGN_OF_FLOAT 4L
#define JS_ALIGN_OF_DOUBLE 4L
#define JS_ALIGN_OF_POINTER 4L
#define JS_ALIGN_OF_WORD 4L
#define JS_BYTES_PER_WORD_LOG2 2L
#define JS_BYTES_PER_DWORD_LOG2 3L
#define PR_WORDS_PER_DWORD_LOG2 1L
#endif /* _WIN32 */
#if defined(_WINDOWS) && !defined(_WIN32) /* WIN16 */
#define IS_LITTLE_ENDIAN 1
#undef IS_BIG_ENDIAN
#define JS_BYTES_PER_BYTE 1L
#define JS_BYTES_PER_SHORT 2L
#define JS_BYTES_PER_INT 2L
#define JS_BYTES_PER_INT64 8L
#define JS_BYTES_PER_LONG 4L
#define JS_BYTES_PER_FLOAT 4L
#define JS_BYTES_PER_DOUBLE 8L
#define JS_BYTES_PER_WORD 4L
#define JS_BYTES_PER_DWORD 8L
#define JS_BITS_PER_BYTE 8L
#define JS_BITS_PER_SHORT 16L
#define JS_BITS_PER_INT 16L
#define JS_BITS_PER_INT64 64L
#define JS_BITS_PER_LONG 32L
#define JS_BITS_PER_FLOAT 32L
#define JS_BITS_PER_DOUBLE 64L
#define JS_BITS_PER_WORD 32L
#define JS_BITS_PER_BYTE_LOG2 3L
#define JS_BITS_PER_SHORT_LOG2 4L
#define JS_BITS_PER_INT_LOG2 4L
#define JS_BITS_PER_INT64_LOG2 6L
#define JS_BITS_PER_LONG_LOG2 5L
#define JS_BITS_PER_FLOAT_LOG2 5L
#define JS_BITS_PER_DOUBLE_LOG2 6L
#define JS_BITS_PER_WORD_LOG2 5L
#define JS_ALIGN_OF_SHORT 2L
#define JS_ALIGN_OF_INT 2L
#define JS_ALIGN_OF_LONG 2L
#define JS_ALIGN_OF_INT64 2L
#define JS_ALIGN_OF_FLOAT 2L
#define JS_ALIGN_OF_DOUBLE 2L
#define JS_ALIGN_OF_POINTER 2L
#define JS_ALIGN_OF_WORD 2L
#define JS_BYTES_PER_WORD_LOG2 2L
#define JS_BYTES_PER_DWORD_LOG2 3L
#define PR_WORDS_PER_DWORD_LOG2 1L
#endif /* defined(_WINDOWS) && !defined(_WIN32) */
#elif defined(XP_UNIX) || defined(XP_BEOS)
#error "This file is supposed to be auto-generated on UNIX platforms, but the"
#error "static version for Mac and Windows platforms is being used."
#error "Something's probably wrong with paths/headers/dependencies/Makefiles."
#else
#error "Must define one of XP_MAC, XP_PC, XP_UNIX, or XP_BEOS"
#endif
#endif /* js_cpucfg___ */

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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
*
* The contents of this file are subject to the Netscape Public
* License Version 1.1 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.mozilla.org/NPL/
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express oqr
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* The Original Code is Mozilla Communicator client code, released
* March 31, 1998.
*
* The Initial Developer of the Original Code is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All
* Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the
* terms of the GNU Public License (the "GPL"), in which case the
* provisions of the GPL are applicable instead of those above.
* If you wish to allow use of your version of this file only
* under the terms of the GPL and not to allow others to use your
* version of this file under the NPL, indicate your decision by
* deleting the provisions above and replace them with the notice
* and other provisions required by the GPL. If you do not delete
* the provisions above, a recipient may use your version of this
* file under either the NPL or the GPL.
*/
/*
* JS Date class interface.
*/
#ifndef jsdate_h___
#define jsdate_h___
JS_BEGIN_EXTERN_C
extern JSObject *
js_InitDateClass(JSContext *cx, JSObject *obj);
/*
* These functions provide a C interface to the date/time object
*/
/*
* Construct a new Date Object from a time value given in milliseconds UTC
* since the epoch.
*/
extern JS_FRIEND_API(JSObject*)
js_NewDateObjectMsec(JSContext* cx, jsdouble msec_time);
/*
* Construct a new Date Object from an exploded local time value.
*/
extern JS_FRIEND_API(JSObject*)
js_NewDateObject(JSContext* cx, int year, int mon, int mday,
int hour, int min, int sec);
/*
* Detect whether the internal date value is NaN. (Because failure is
* out-of-band for js_DateGet*)
*/
extern JS_FRIEND_API(JSBool)
js_DateIsValid(JSContext *cx, JSObject* obj);
extern JS_FRIEND_API(int)
js_DateGetYear(JSContext *cx, JSObject* obj);
extern JS_FRIEND_API(int)
js_DateGetMonth(JSContext *cx, JSObject* obj);
extern JS_FRIEND_API(int)
js_DateGetDate(JSContext *cx, JSObject* obj);
extern JS_FRIEND_API(int)
js_DateGetHours(JSContext *cx, JSObject* obj);
extern JS_FRIEND_API(int)
js_DateGetMinutes(JSContext *cx, JSObject* obj);
extern JS_FRIEND_API(int)
js_DateGetSeconds(JSContext *cx, JSObject* obj);
extern JS_FRIEND_API(void)
js_DateSetYear(JSContext *cx, JSObject *obj, int year);
extern JS_FRIEND_API(void)
js_DateSetMonth(JSContext *cx, JSObject *obj, int year);
extern JS_FRIEND_API(void)
js_DateSetDate(JSContext *cx, JSObject *obj, int date);
extern JS_FRIEND_API(void)
js_DateSetHours(JSContext *cx, JSObject *obj, int hours);
extern JS_FRIEND_API(void)
js_DateSetMinutes(JSContext *cx, JSObject *obj, int minutes);
extern JS_FRIEND_API(void)
js_DateSetSeconds(JSContext *cx, JSObject *obj, int seconds);
extern JS_FRIEND_API(jsdouble)
js_DateGetMsecSinceEpoch(JSContext *cx, JSObject *obj);
JS_END_EXTERN_C
#endif /* jsdate_h___ */

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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
*
* The contents of this file are subject to the Netscape Public
* License Version 1.1 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.mozilla.org/NPL/
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express oqr
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* The Original Code is Mozilla Communicator client code, released
* March 31, 1998.
*
* The Initial Developer of the Original Code is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All
* Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the
* terms of the GNU Public License (the "GPL"), in which case the
* provisions of the GPL are applicable instead of those above.
* If you wish to allow use of your version of this file only
* under the terms of the GPL and not to allow others to use your
* version of this file under the NPL, indicate your decision by
* deleting the provisions above and replace them with the notice
* and other provisions required by the GPL. If you do not delete
* the provisions above, a recipient may use your version of this
* file under either the NPL or the GPL.
*/
/*
* JS debugging API.
*/
#include "jsstddef.h"
#include <string.h>
#include "jstypes.h"
#include "jsutil.h" /* Added by JSIFY */
#include "jsclist.h"
#include "jsapi.h"
#include "jscntxt.h"
#include "jsconfig.h"
#include "jsdbgapi.h"
#include "jsfun.h"
#include "jsgc.h"
#include "jsinterp.h"
#include "jslock.h"
#include "jsobj.h"
#include "jsopcode.h"
#include "jsscope.h"
#include "jsscript.h"
#include "jsstr.h"
typedef struct JSTrap {
JSCList links;
JSScript *script;
jsbytecode *pc;
JSOp op;
JSTrapHandler handler;
void *closure;
} JSTrap;
static JSTrap *
FindTrap(JSRuntime *rt, JSScript *script, jsbytecode *pc)
{
JSTrap *trap;
for (trap = (JSTrap *)rt->trapList.next;
trap != (JSTrap *)&rt->trapList;
trap = (JSTrap *)trap->links.next) {
if (trap->script == script && trap->pc == pc)
return trap;
}
return NULL;
}
void
js_PatchOpcode(JSContext *cx, JSScript *script, jsbytecode *pc, JSOp op)
{
JSTrap *trap;
trap = FindTrap(cx->runtime, script, pc);
if (trap)
trap->op = op;
else
*pc = (jsbytecode)op;
}
JS_PUBLIC_API(JSBool)
JS_SetTrap(JSContext *cx, JSScript *script, jsbytecode *pc,
JSTrapHandler handler, void *closure)
{
JSRuntime *rt;
JSTrap *trap;
rt = cx->runtime;
trap = FindTrap(rt, script, pc);
if (trap) {
/* Restore opcode at pc so it can be saved again. */
*pc = (jsbytecode)trap->op;
} else {
trap = JS_malloc(cx, sizeof *trap);
if (!trap || !js_AddRoot(cx, &trap->closure, "trap->closure")) {
if (trap)
JS_free(cx, trap);
return JS_FALSE;
}
}
JS_APPEND_LINK(&trap->links, &rt->trapList);
trap->script = script;
trap->pc = pc;
trap->op = (JSOp)*pc;
trap->handler = handler;
trap->closure = closure;
*pc = JSOP_TRAP;
return JS_TRUE;
}
JS_PUBLIC_API(JSOp)
JS_GetTrapOpcode(JSContext *cx, JSScript *script, jsbytecode *pc)
{
JSTrap *trap;
trap = FindTrap(cx->runtime, script, pc);
if (!trap) {
JS_ASSERT(0); /* XXX can't happen */
return JSOP_LIMIT;
}
return trap->op;
}
static void
DestroyTrap(JSContext *cx, JSTrap *trap)
{
JS_REMOVE_LINK(&trap->links);
*trap->pc = (jsbytecode)trap->op;
js_RemoveRoot(cx->runtime, &trap->closure);
JS_free(cx, trap);
}
JS_PUBLIC_API(void)
JS_ClearTrap(JSContext *cx, JSScript *script, jsbytecode *pc,
JSTrapHandler *handlerp, void **closurep)
{
JSTrap *trap;
trap = FindTrap(cx->runtime, script, pc);
if (handlerp)
*handlerp = trap ? trap->handler : NULL;
if (closurep)
*closurep = trap ? trap->closure : NULL;
if (trap)
DestroyTrap(cx, trap);
}
JS_PUBLIC_API(void)
JS_ClearScriptTraps(JSContext *cx, JSScript *script)
{
JSRuntime *rt;
JSTrap *trap, *next;
rt = cx->runtime;
for (trap = (JSTrap *)rt->trapList.next;
trap != (JSTrap *)&rt->trapList;
trap = next) {
next = (JSTrap *)trap->links.next;
if (trap->script == script)
DestroyTrap(cx, trap);
}
}
JS_PUBLIC_API(void)
JS_ClearAllTraps(JSContext *cx)
{
JSRuntime *rt;
JSTrap *trap, *next;
rt = cx->runtime;
for (trap = (JSTrap *)rt->trapList.next;
trap != (JSTrap *)&rt->trapList;
trap = next) {
next = (JSTrap *)trap->links.next;
DestroyTrap(cx, trap);
}
}
JS_PUBLIC_API(JSTrapStatus)
JS_HandleTrap(JSContext *cx, JSScript *script, jsbytecode *pc, jsval *rval)
{
JSTrap *trap;
JSTrapStatus status;
jsint op;
trap = FindTrap(cx->runtime, script, pc);
if (!trap) {
JS_ASSERT(0); /* XXX can't happen */
return JSTRAP_ERROR;
}
/*
* It's important that we not use 'trap->' after calling the callback --
* the callback might remove the trap!
*/
op = (jsint)trap->op;
status = trap->handler(cx, script, pc, rval, trap->closure);
if (status == JSTRAP_CONTINUE) {
/* By convention, return the true op to the interpreter in rval. */
*rval = INT_TO_JSVAL(op);
}
return status;
}
JS_PUBLIC_API(JSBool)
JS_SetInterrupt(JSRuntime *rt, JSTrapHandler handler, void *closure)
{
rt->interruptHandler = handler;
rt->interruptHandlerData = closure;
return JS_TRUE;
}
JS_PUBLIC_API(JSBool)
JS_ClearInterrupt(JSRuntime *rt, JSTrapHandler *handlerp, void **closurep)
{
if (handlerp)
*handlerp = (JSTrapHandler)rt->interruptHandler;
if (closurep)
*closurep = rt->interruptHandlerData;
rt->interruptHandler = 0;
rt->interruptHandlerData = 0;
return JS_TRUE;
}
typedef struct JSWatchPoint {
JSCList links;
JSObject *object; /* weak link, see js_FinalizeObject */
jsval userid;
JSScopeProperty *sprop;
JSPropertyOp setter;
JSWatchPointHandler handler;
void *closure;
jsrefcount nrefs;
} JSWatchPoint;
#define HoldWatchPoint(wp) ((wp)->nrefs++)
static void
DropWatchPoint(JSContext *cx, JSWatchPoint *wp)
{
if (--wp->nrefs != 0)
return;
SPROP_SETTER(wp->sprop, wp->object) = wp->setter;
JS_LOCK_OBJ_VOID(cx, wp->object,
js_DropScopeProperty(cx, OBJ_SCOPE(wp->object),
wp->sprop));
JS_REMOVE_LINK(&wp->links);
js_RemoveRoot(cx->runtime, &wp->closure);
JS_free(cx, wp);
}
static JSWatchPoint *
FindWatchPoint(JSRuntime *rt, JSObject *obj, jsval userid)
{
JSWatchPoint *wp;
for (wp = (JSWatchPoint *)rt->watchPointList.next;
wp != (JSWatchPoint *)&rt->watchPointList;
wp = (JSWatchPoint *)wp->links.next) {
if (wp->object == obj && wp->userid == userid)
return wp;
}
return NULL;
}
JSScopeProperty *
js_FindWatchPoint(JSRuntime *rt, JSObject *obj, jsval userid)
{
JSWatchPoint *wp;
wp = FindWatchPoint(rt, obj, userid);
if (!wp)
return NULL;
return wp->sprop;
}
JSBool JS_DLL_CALLBACK
js_watch_set(JSContext *cx, JSObject *obj, jsval id, jsval *vp)
{
JSRuntime *rt;
JSWatchPoint *wp;
JSScopeProperty *sprop;
JSSymbol *sym;
jsval userid, value;
jsid symid;
JSScope *scope;
JSAtom *atom;
JSBool ok;
rt = cx->runtime;
for (wp = (JSWatchPoint *)rt->watchPointList.next;
wp != (JSWatchPoint *)&rt->watchPointList;
wp = (JSWatchPoint *)wp->links.next) {
sprop = wp->sprop;
if (wp->object == obj && sprop->id == id) {
JS_LOCK_OBJ(cx, obj);
sym = sprop->symbols;
if (!sym) {
userid = wp->userid;
atom = NULL;
if (JSVAL_IS_INT(userid)) {
symid = (jsid)userid;
} else {
atom = js_ValueToStringAtom(cx, userid);
if (!atom) {
JS_UNLOCK_OBJ(cx, obj);
return JS_FALSE;
}
symid = (jsid)atom;
}
scope = OBJ_SCOPE(obj);
JS_ASSERT(scope->props);
ok = LOCKED_OBJ_GET_CLASS(obj)->addProperty(cx, obj, sprop->id,
&value);
if (!ok) {
JS_UNLOCK_OBJ(cx, obj);
return JS_FALSE;
}
ok = (scope->ops->add(cx, scope, symid, sprop) != NULL);
if (!ok) {
JS_UNLOCK_OBJ(cx, obj);
return JS_FALSE;
}
sym = sprop->symbols;
}
JS_UNLOCK_OBJ(cx, obj);
HoldWatchPoint(wp);
ok = wp->handler(cx, obj, js_IdToValue(sym_id(sym)),
OBJ_GET_SLOT(cx, obj, wp->sprop->slot), vp,
wp->closure);
if (ok)
ok = wp->setter(cx, obj, id, vp);
DropWatchPoint(cx, wp);
return ok;
}
}
JS_ASSERT(0); /* XXX can't happen */
return JS_FALSE;
}
JS_PUBLIC_API(JSBool)
JS_SetWatchPoint(JSContext *cx, JSObject *obj, jsval id,
JSWatchPointHandler handler, void *closure)
{
JSAtom *atom;
jsid symid;
JSObject *pobj;
JSScopeProperty *sprop;
JSRuntime *rt;
JSWatchPoint *wp;
if (!OBJ_IS_NATIVE(obj)) {
JS_ReportErrorNumber(cx, js_GetErrorMessage, NULL, JSMSG_CANT_WATCH,
OBJ_GET_CLASS(cx, obj)->name);
return JS_FALSE;
}
if (JSVAL_IS_INT(id)) {
symid = (jsid)id;
atom = NULL;
} else {
atom = js_ValueToStringAtom(cx, id);
if (!atom)
return JS_FALSE;
symid = (jsid)atom;
}
if (!js_LookupProperty(cx, obj, symid, &pobj, (JSProperty **)&sprop))
return JS_FALSE;
rt = cx->runtime;
if (!sprop) {
/* Check for a deleted symbol watchpoint, which holds its property. */
sprop = js_FindWatchPoint(rt, obj, id);
if (sprop) {
#ifdef JS_THREADSAFE
/* Emulate js_LookupProperty if thread-safe. */
JS_LOCK_OBJ(cx, obj);
sprop->nrefs++;
#endif
} else {
/* Make a new property in obj so we can watch for the first set. */
if (!js_DefineProperty(cx, obj, symid, JSVAL_VOID, NULL, NULL, 0,
(JSProperty **)&sprop)) {
sprop = NULL;
}
}
} else if (pobj != obj) {
/* Clone the prototype property so we can watch the right object. */
jsval value;
JSPropertyOp getter, setter;
uintN attrs;
if (OBJ_IS_NATIVE(pobj)) {
value = LOCKED_OBJ_GET_SLOT(pobj, sprop->slot);
} else {
if (!OBJ_GET_PROPERTY(cx, pobj, id, &value)) {
OBJ_DROP_PROPERTY(cx, pobj, (JSProperty *)sprop);
return JS_FALSE;
}
}
getter = SPROP_GETTER(sprop, pobj);
setter = SPROP_SETTER(sprop, pobj);
attrs = sprop->attrs;
OBJ_DROP_PROPERTY(cx, pobj, (JSProperty *)sprop);
if (!js_DefineProperty(cx, obj, symid, value, getter, setter, attrs,
(JSProperty **)&sprop)) {
sprop = NULL;
}
}
if (!sprop)
return JS_FALSE;
wp = FindWatchPoint(rt, obj, id);
if (!wp) {
wp = JS_malloc(cx, sizeof *wp);
if (!wp)
return JS_FALSE;
if (!js_AddRoot(cx, &wp->closure, "wp->closure")) {
JS_free(cx, wp);
return JS_FALSE;
}
JS_APPEND_LINK(&wp->links, &rt->watchPointList);
wp->object = obj;
wp->userid = id;
wp->sprop = js_HoldScopeProperty(cx, OBJ_SCOPE(obj), sprop);
wp->setter = SPROP_SETTER(sprop, obj);
SPROP_SETTER(sprop, obj) = js_watch_set;
wp->nrefs = 1;
}
wp->handler = handler;
wp->closure = closure;
OBJ_DROP_PROPERTY(cx, obj, (JSProperty *)sprop);
return JS_TRUE;
}
JS_PUBLIC_API(void)
JS_ClearWatchPoint(JSContext *cx, JSObject *obj, jsval id,
JSWatchPointHandler *handlerp, void **closurep)
{
JSRuntime *rt;
JSWatchPoint *wp;
rt = cx->runtime;
for (wp = (JSWatchPoint *)rt->watchPointList.next;
wp != (JSWatchPoint *)&rt->watchPointList;
wp = (JSWatchPoint *)wp->links.next) {
if (wp->object == obj && wp->userid == id) {
if (handlerp)
*handlerp = wp->handler;
if (closurep)
*closurep = wp->closure;
DropWatchPoint(cx, wp);
return;
}
}
if (handlerp)
*handlerp = NULL;
if (closurep)
*closurep = NULL;
}
JS_PUBLIC_API(void)
JS_ClearWatchPointsForObject(JSContext *cx, JSObject *obj)
{
JSRuntime *rt;
JSWatchPoint *wp, *next;
rt = cx->runtime;
for (wp = (JSWatchPoint *)rt->watchPointList.next;
wp != (JSWatchPoint *)&rt->watchPointList;
wp = next) {
next = (JSWatchPoint *)wp->links.next;
if (wp->object == obj)
DropWatchPoint(cx, wp);
}
}
JS_PUBLIC_API(void)
JS_ClearAllWatchPoints(JSContext *cx)
{
JSRuntime *rt;
JSWatchPoint *wp, *next;
rt = cx->runtime;
for (wp = (JSWatchPoint *)rt->watchPointList.next;
wp != (JSWatchPoint *)&rt->watchPointList;
wp = next) {
next = (JSWatchPoint *)wp->links.next;
DropWatchPoint(cx, wp);
}
}
JS_PUBLIC_API(uintN)
JS_PCToLineNumber(JSContext *cx, JSScript *script, jsbytecode *pc)
{
return js_PCToLineNumber(script, pc);
}
JS_PUBLIC_API(jsbytecode *)
JS_LineNumberToPC(JSContext *cx, JSScript *script, uintN lineno)
{
return js_LineNumberToPC(script, lineno);
}
JS_PUBLIC_API(JSScript *)
JS_GetFunctionScript(JSContext *cx, JSFunction *fun)
{
return fun->script;
}
JS_PUBLIC_API(JSPrincipals *)
JS_GetScriptPrincipals(JSContext *cx, JSScript *script)
{
return script->principals;
}
/*
* Stack Frame Iterator
*/
JS_PUBLIC_API(JSStackFrame *)
JS_FrameIterator(JSContext *cx, JSStackFrame **iteratorp)
{
*iteratorp = (*iteratorp == NULL) ? cx->fp : (*iteratorp)->down;
return *iteratorp;
}
JS_PUBLIC_API(JSScript *)
JS_GetFrameScript(JSContext *cx, JSStackFrame *fp)
{
return fp->script;
}
JS_PUBLIC_API(jsbytecode *)
JS_GetFramePC(JSContext *cx, JSStackFrame *fp)
{
return fp->pc;
}
JS_PUBLIC_API(void *)
JS_GetFrameAnnotation(JSContext *cx, JSStackFrame *fp)
{
if (fp->annotation) {
JSPrincipals *principals = fp->script
? fp->script->principals
: NULL;
if (principals == NULL)
return NULL;
if (principals->globalPrivilegesEnabled(cx, principals)) {
/*
* Only give out an annotation if privileges have not
* been revoked globally.
*/
return fp->annotation;
}
}
return NULL;
}
JS_PUBLIC_API(void)
JS_SetFrameAnnotation(JSContext *cx, JSStackFrame *fp, void *annotation)
{
fp->annotation = annotation;
}
JS_PUBLIC_API(void *)
JS_GetFramePrincipalArray(JSContext *cx, JSStackFrame *fp)
{
JSPrincipals *principals = fp->script
? fp->script->principals
: NULL;
return principals
? principals->getPrincipalArray(cx, principals)
: NULL;
}
JS_PUBLIC_API(JSBool)
JS_IsNativeFrame(JSContext *cx, JSStackFrame *fp)
{
return fp->fun && fp->fun->call;
}
/* this is deprecated, use JS_GetFrameScopeChain instead */
JS_PUBLIC_API(JSObject *)
JS_GetFrameObject(JSContext *cx, JSStackFrame *fp)
{
return fp->scopeChain;
}
JS_PUBLIC_API(JSObject *)
JS_GetFrameScopeChain(JSContext *cx, JSStackFrame *fp)
{
/* Force creation of argument and call objects if not yet created */
JS_GetFrameCallObject(cx, fp);
return fp->scopeChain;
}
JS_PUBLIC_API(JSObject *)
JS_GetFrameCallObject(JSContext *cx, JSStackFrame *fp)
{
if (! fp->fun)
return NULL;
/* Force creation of argument object if not yet created */
js_GetArgsObject(cx, fp);
#if JS_HAS_CALL_OBJECT
return js_GetCallObject(cx, fp, NULL, NULL);
#else
return NULL;
#endif /* JS_HAS_CALL_OBJECT */
}
JS_PUBLIC_API(JSObject *)
JS_GetFrameThis(JSContext *cx, JSStackFrame *fp)
{
return fp->thisp;
}
JS_PUBLIC_API(JSFunction *)
JS_GetFrameFunction(JSContext *cx, JSStackFrame *fp)
{
return fp->fun;
}
JS_PUBLIC_API(JSBool)
JS_IsContructorFrame(JSContext *cx, JSStackFrame *fp)
{
return fp->constructing;
}
JS_PUBLIC_API(JSBool)
JS_IsDebuggerFrame(JSContext *cx, JSStackFrame *fp)
{
return fp->special & JSFRAME_DEBUGGER;
}
JS_PUBLIC_API(jsval)
JS_GetFrameReturnValue(JSContext *cx, JSStackFrame *fp)
{
return fp->rval;
}
JS_PUBLIC_API(void)
JS_SetFrameReturnValue(JSContext *cx, JSStackFrame *fp, jsval rval)
{
fp->rval = rval;
}
/************************************************************************/
JS_PUBLIC_API(const char *)
JS_GetScriptFilename(JSContext *cx, JSScript *script)
{
return script->filename;
}
JS_PUBLIC_API(uintN)
JS_GetScriptBaseLineNumber(JSContext *cx, JSScript *script)
{
return script->lineno;
}
JS_PUBLIC_API(uintN)
JS_GetScriptLineExtent(JSContext *cx, JSScript *script)
{
return js_GetScriptLineExtent(script);
}
/***************************************************************************/
JS_PUBLIC_API(void)
JS_SetNewScriptHook(JSRuntime *rt, JSNewScriptHook hook, void *callerdata)
{
rt->newScriptHook = hook;
rt->newScriptHookData = callerdata;
}
JS_PUBLIC_API(void)
JS_SetDestroyScriptHook(JSRuntime *rt, JSDestroyScriptHook hook,
void *callerdata)
{
rt->destroyScriptHook = hook;
rt->destroyScriptHookData = callerdata;
}
/***************************************************************************/
JS_PUBLIC_API(JSBool)
JS_EvaluateInStackFrame(JSContext *cx, JSStackFrame *fp,
const char *bytes, uintN length,
const char *filename, uintN lineno,
jsval *rval)
{
JSScript *script;
JSBool ok;
script = JS_CompileScriptForPrincipals(cx, fp->scopeChain,
fp->script ? fp->script->principals
: NULL,
bytes, length, filename, lineno);
if (!script)
return JS_FALSE;
ok = js_Execute(cx, fp->scopeChain, script, fp->fun, fp, JSFRAME_DEBUGGER,
rval);
js_DestroyScript(cx, script);
return ok;
}
/************************************************************************/
/* XXXbe this all needs to be reworked to avoid requiring JSScope types. */
JS_PUBLIC_API(JSScopeProperty *)
JS_PropertyIterator(JSObject *obj, JSScopeProperty **iteratorp)
{
JSScopeProperty *sprop;
JSScope *scope;
sprop = *iteratorp;
scope = OBJ_SCOPE(obj);
sprop = (sprop == NULL) ? scope->props : sprop->next;
*iteratorp = sprop;
return sprop;
}
JS_PUBLIC_API(JSBool)
JS_GetPropertyDesc(JSContext *cx, JSObject *obj, JSScopeProperty *sprop,
JSPropertyDesc *pd)
{
JSSymbol *sym;
JSPropertyOp getter;
sym = sprop->symbols;
pd->id = sym ? js_IdToValue(sym_id(sym)) : JSVAL_VOID;
if (!sym || !js_GetProperty(cx, obj, sym_id(sym), &pd->value))
pd->value = OBJ_GET_SLOT(cx, obj, sprop->slot);
getter = SPROP_GETTER(sprop, obj);
pd->flags = ((sprop->attrs & JSPROP_ENUMERATE) ? JSPD_ENUMERATE : 0)
| ((sprop->attrs & JSPROP_READONLY) ? JSPD_READONLY : 0)
| ((sprop->attrs & JSPROP_PERMANENT) ? JSPD_PERMANENT : 0)
#if JS_HAS_CALL_OBJECT
| ((getter == js_GetCallVariable) ? JSPD_VARIABLE : 0)
#endif /* JS_HAS_CALL_OBJECT */
| ((getter == js_GetArgument) ? JSPD_ARGUMENT : 0)
| ((getter == js_GetLocalVariable) ? JSPD_VARIABLE : 0);
#if JS_HAS_CALL_OBJECT
/* for Call Object 'real' getter isn't passed in to us */
if (OBJ_GET_CLASS(cx, obj) == &js_CallClass &&
getter == js_CallClass.getProperty) {
pd->flags |= JSPD_ARGUMENT;
}
#endif /* JS_HAS_CALL_OBJECT */
pd->spare = 0;
pd->slot = (pd->flags & (JSPD_ARGUMENT | JSPD_VARIABLE))
? JSVAL_TO_INT(sprop->id)
: 0;
if (!sym || !sym->next || (pd->flags & (JSPD_ARGUMENT | JSPD_VARIABLE))) {
pd->alias = JSVAL_VOID;
} else {
pd->alias = js_IdToValue(sym_id(sym->next));
pd->flags |= JSPD_ALIAS;
}
return JS_TRUE;
}
JS_PUBLIC_API(JSBool)
JS_GetPropertyDescArray(JSContext *cx, JSObject *obj, JSPropertyDescArray *pda)
{
JSClass *clasp;
JSScope *scope;
uint32 i, n;
JSPropertyDesc *pd;
JSScopeProperty *sprop;
clasp = OBJ_GET_CLASS(cx, obj);
if (!OBJ_IS_NATIVE(obj) || (clasp->flags & JSCLASS_NEW_ENUMERATE)) {
JS_ReportErrorNumber(cx, js_GetErrorMessage, NULL,
JSMSG_CANT_DESCRIBE_PROPS, clasp->name);
return JS_FALSE;
}
if (!clasp->enumerate(cx, obj))
return JS_FALSE;
/* have no props, or object's scope has not mutated from that of proto */
scope = OBJ_SCOPE(obj);
if (!scope->props ||
(OBJ_GET_PROTO(cx,obj) && scope == OBJ_SCOPE(OBJ_GET_PROTO(cx,obj)))) {
pda->length = 0;
pda->array = NULL;
return JS_TRUE;
}
n = scope->map.freeslot;
pd = JS_malloc(cx, (size_t)n * sizeof(JSPropertyDesc));
if (!pd)
return JS_FALSE;
i = 0;
for (sprop = scope->props; sprop; sprop = sprop->next) {
if (!js_AddRoot(cx, &pd[i].id, NULL))
goto bad;
if (!js_AddRoot(cx, &pd[i].value, NULL))
goto bad;
JS_GetPropertyDesc(cx, obj, sprop, &pd[i]);
if ((pd[i].flags & JSPD_ALIAS) && !js_AddRoot(cx, &pd[i].alias, NULL))
goto bad;
if (++i == n)
break;
}
pda->length = i;
pda->array = pd;
return JS_TRUE;
bad:
pda->length = i + 1;
pda->array = pd;
JS_PutPropertyDescArray(cx, pda);
return JS_FALSE;
}
JS_PUBLIC_API(void)
JS_PutPropertyDescArray(JSContext *cx, JSPropertyDescArray *pda)
{
JSPropertyDesc *pd;
uint32 i;
pd = pda->array;
for (i = 0; i < pda->length; i++) {
js_RemoveRoot(cx->runtime, &pd[i].id);
js_RemoveRoot(cx->runtime, &pd[i].value);
if (pd[i].flags & JSPD_ALIAS)
js_RemoveRoot(cx->runtime, &pd[i].alias);
}
JS_free(cx, pd);
}
/************************************************************************/
JS_PUBLIC_API(JSBool)
JS_SetDebuggerHandler(JSRuntime *rt, JSTrapHandler handler, void *closure)
{
rt->debuggerHandler = handler;
rt->debuggerHandlerData = closure;
return JS_TRUE;
}
JS_PUBLIC_API(JSBool)
JS_SetSourceHandler(JSRuntime *rt, JSSourceHandler handler, void *closure)
{
rt->sourceHandler = handler;
rt->sourceHandlerData = closure;
return JS_TRUE;
}
JS_PUBLIC_API(JSBool)
JS_SetExecuteHook(JSRuntime *rt, JSInterpreterHook hook, void *closure)
{
rt->executeHook = hook;
rt->executeHookData = closure;
return JS_TRUE;
}
JS_PUBLIC_API(JSBool)
JS_SetCallHook(JSRuntime *rt, JSInterpreterHook hook, void *closure)
{
rt->callHook = hook;
rt->callHookData = closure;
return JS_TRUE;
}
JS_PUBLIC_API(JSBool)
JS_SetObjectHook(JSRuntime *rt, JSObjectHook hook, void *closure)
{
rt->objectHook = hook;
rt->objectHookData = closure;
return JS_TRUE;
}
JS_PUBLIC_API(JSBool)
JS_SetThrowHook(JSRuntime *rt, JSTrapHandler hook, void *closure)
{
rt->throwHook = hook;
rt->throwHookData = closure;
return JS_TRUE;
}
JS_PUBLIC_API(JSBool)
JS_SetDebugErrorHook(JSRuntime *rt, JSDebugErrorHook hook, void *closure)
{
rt->debugErrorHook = hook;
rt->debugErrorHookData = closure;
return JS_TRUE;
}

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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
*
* The contents of this file are subject to the Netscape Public
* License Version 1.1 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.mozilla.org/NPL/
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express oqr
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* The Original Code is Mozilla Communicator client code, released
* March 31, 1998.
*
* The Initial Developer of the Original Code is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All
* Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the
* terms of the GNU Public License (the "GPL"), in which case the
* provisions of the GPL are applicable instead of those above.
* If you wish to allow use of your version of this file only
* under the terms of the GPL and not to allow others to use your
* version of this file under the NPL, indicate your decision by
* deleting the provisions above and replace them with the notice
* and other provisions required by the GPL. If you do not delete
* the provisions above, a recipient may use your version of this
* file under either the NPL or the GPL.
*/
#ifndef jsdbgapi_h___
#define jsdbgapi_h___
/*
* JS debugger API.
*/
#include "jsapi.h"
#include "jsopcode.h"
#include "jsprvtd.h"
JS_BEGIN_EXTERN_C
extern void
js_PatchOpcode(JSContext *cx, JSScript *script, jsbytecode *pc, JSOp op);
extern JS_PUBLIC_API(JSBool)
JS_SetTrap(JSContext *cx, JSScript *script, jsbytecode *pc,
JSTrapHandler handler, void *closure);
extern JS_PUBLIC_API(JSOp)
JS_GetTrapOpcode(JSContext *cx, JSScript *script, jsbytecode *pc);
extern JS_PUBLIC_API(void)
JS_ClearTrap(JSContext *cx, JSScript *script, jsbytecode *pc,
JSTrapHandler *handlerp, void **closurep);
extern JS_PUBLIC_API(void)
JS_ClearScriptTraps(JSContext *cx, JSScript *script);
extern JS_PUBLIC_API(void)
JS_ClearAllTraps(JSContext *cx);
extern JS_PUBLIC_API(JSTrapStatus)
JS_HandleTrap(JSContext *cx, JSScript *script, jsbytecode *pc, jsval *rval);
extern JS_PUBLIC_API(JSBool)
JS_SetInterrupt(JSRuntime *rt, JSTrapHandler handler, void *closure);
extern JS_PUBLIC_API(JSBool)
JS_ClearInterrupt(JSRuntime *rt, JSTrapHandler *handlerp, void **closurep);
/************************************************************************/
extern JS_PUBLIC_API(JSBool)
JS_SetWatchPoint(JSContext *cx, JSObject *obj, jsval id,
JSWatchPointHandler handler, void *closure);
extern JS_PUBLIC_API(void)
JS_ClearWatchPoint(JSContext *cx, JSObject *obj, jsval id,
JSWatchPointHandler *handlerp, void **closurep);
extern JS_PUBLIC_API(void)
JS_ClearWatchPointsForObject(JSContext *cx, JSObject *obj);
extern JS_PUBLIC_API(void)
JS_ClearAllWatchPoints(JSContext *cx);
#ifdef JS_HAS_OBJ_WATCHPOINT
/*
* Hide these non-API function prototypes by testing whether the internal
* header file "jsconfig.h" has been included.
*/
extern JSScopeProperty *
js_FindWatchPoint(JSRuntime *rt, JSObject *obj, jsval userid);
extern JSBool JS_DLL_CALLBACK
js_watch_set(JSContext *cx, JSObject *obj, jsval id, jsval *vp);
#endif
/************************************************************************/
extern JS_PUBLIC_API(uintN)
JS_PCToLineNumber(JSContext *cx, JSScript *script, jsbytecode *pc);
extern JS_PUBLIC_API(jsbytecode *)
JS_LineNumberToPC(JSContext *cx, JSScript *script, uintN lineno);
extern JS_PUBLIC_API(JSScript *)
JS_GetFunctionScript(JSContext *cx, JSFunction *fun);
extern JS_PUBLIC_API(JSPrincipals *)
JS_GetScriptPrincipals(JSContext *cx, JSScript *script);
/*
* Stack Frame Iterator
*
* Used to iterate through the JS stack frames to extract
* information from the frames.
*/
extern JS_PUBLIC_API(JSStackFrame *)
JS_FrameIterator(JSContext *cx, JSStackFrame **iteratorp);
extern JS_PUBLIC_API(JSScript *)
JS_GetFrameScript(JSContext *cx, JSStackFrame *fp);
extern JS_PUBLIC_API(jsbytecode *)
JS_GetFramePC(JSContext *cx, JSStackFrame *fp);
extern JS_PUBLIC_API(JSBool)
JS_IsNativeFrame(JSContext *cx, JSStackFrame *fp);
extern JS_PUBLIC_API(void *)
JS_GetFrameAnnotation(JSContext *cx, JSStackFrame *fp);
extern JS_PUBLIC_API(void)
JS_SetFrameAnnotation(JSContext *cx, JSStackFrame *fp, void *annotation);
extern JS_PUBLIC_API(void *)
JS_GetFramePrincipalArray(JSContext *cx, JSStackFrame *fp);
/* this is deprecated, use JS_GetFrameScopeChain instead */
extern JS_PUBLIC_API(JSObject *)
JS_GetFrameObject(JSContext *cx, JSStackFrame *fp);
extern JS_PUBLIC_API(JSObject *)
JS_GetFrameScopeChain(JSContext *cx, JSStackFrame *fp);
extern JS_PUBLIC_API(JSObject *)
JS_GetFrameCallObject(JSContext *cx, JSStackFrame *fp);
extern JS_PUBLIC_API(JSObject *)
JS_GetFrameThis(JSContext *cx, JSStackFrame *fp);
extern JS_PUBLIC_API(JSFunction *)
JS_GetFrameFunction(JSContext *cx, JSStackFrame *fp);
extern JS_PUBLIC_API(JSBool)
JS_IsContructorFrame(JSContext *cx, JSStackFrame *fp);
extern JS_PUBLIC_API(JSBool)
JS_IsDebuggerFrame(JSContext *cx, JSStackFrame *fp);
extern JS_PUBLIC_API(jsval)
JS_GetFrameReturnValue(JSContext *cx, JSStackFrame *fp);
extern JS_PUBLIC_API(void)
JS_SetFrameReturnValue(JSContext *cx, JSStackFrame *fp, jsval rval);
/************************************************************************/
extern JS_PUBLIC_API(const char *)
JS_GetScriptFilename(JSContext *cx, JSScript *script);
extern JS_PUBLIC_API(uintN)
JS_GetScriptBaseLineNumber(JSContext *cx, JSScript *script);
extern JS_PUBLIC_API(uintN)
JS_GetScriptLineExtent(JSContext *cx, JSScript *script);
/************************************************************************/
/*
* Hook setters for script creation and destruction, see jsprvtd.h for the
* typedefs. These macros provide binary compatibility and newer, shorter
* synonyms.
*/
#define JS_SetNewScriptHook JS_SetNewScriptHookProc
#define JS_SetDestroyScriptHook JS_SetDestroyScriptHookProc
extern JS_PUBLIC_API(void)
JS_SetNewScriptHook(JSRuntime *rt, JSNewScriptHook hook, void *callerdata);
extern JS_PUBLIC_API(void)
JS_SetDestroyScriptHook(JSRuntime *rt, JSDestroyScriptHook hook,
void *callerdata);
/************************************************************************/
extern JS_PUBLIC_API(JSBool)
JS_EvaluateInStackFrame(JSContext *cx, JSStackFrame *fp,
const char *bytes, uintN length,
const char *filename, uintN lineno,
jsval *rval);
/************************************************************************/
typedef struct JSPropertyDesc {
jsval id; /* primary id, a string or int */
jsval value; /* property value */
uint8 flags; /* flags, see below */
uint8 spare; /* unused */
uint16 slot; /* argument/variable slot */
jsval alias; /* alias id if JSPD_ALIAS flag */
} JSPropertyDesc;
#define JSPD_ENUMERATE 0x01 /* visible to for/in loop */
#define JSPD_READONLY 0x02 /* assignment is error */
#define JSPD_PERMANENT 0x04 /* property cannot be deleted */
#define JSPD_ALIAS 0x08 /* property has an alias id */
#define JSPD_ARGUMENT 0x10 /* argument to function */
#define JSPD_VARIABLE 0x20 /* local variable in function */
typedef struct JSPropertyDescArray {
uint32 length; /* number of elements in array */
JSPropertyDesc *array; /* alloc'd by Get, freed by Put */
} JSPropertyDescArray;
extern JS_PUBLIC_API(JSScopeProperty *)
JS_PropertyIterator(JSObject *obj, JSScopeProperty **iteratorp);
extern JS_PUBLIC_API(JSBool)
JS_GetPropertyDesc(JSContext *cx, JSObject *obj, JSScopeProperty *sprop,
JSPropertyDesc *pd);
extern JS_PUBLIC_API(JSBool)
JS_GetPropertyDescArray(JSContext *cx, JSObject *obj, JSPropertyDescArray *pda);
extern JS_PUBLIC_API(void)
JS_PutPropertyDescArray(JSContext *cx, JSPropertyDescArray *pda);
/************************************************************************/
extern JS_PUBLIC_API(JSBool)
JS_SetDebuggerHandler(JSRuntime *rt, JSTrapHandler handler, void *closure);
extern JS_PUBLIC_API(JSBool)
JS_SetSourceHandler(JSRuntime *rt, JSSourceHandler handler, void *closure);
extern JS_PUBLIC_API(JSBool)
JS_SetExecuteHook(JSRuntime *rt, JSInterpreterHook hook, void *closure);
extern JS_PUBLIC_API(JSBool)
JS_SetCallHook(JSRuntime *rt, JSInterpreterHook hook, void *closure);
extern JS_PUBLIC_API(JSBool)
JS_SetObjectHook(JSRuntime *rt, JSObjectHook hook, void *closure);
extern JS_PUBLIC_API(JSBool)
JS_SetThrowHook(JSRuntime *rt, JSTrapHandler hook, void *closure);
extern JS_PUBLIC_API(JSBool)
JS_SetDebugErrorHook(JSRuntime *rt, JSDebugErrorHook hook, void *closure);
JS_END_EXTERN_C
#endif /* jsdbgapi_h___ */

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mozilla/js/src/jsdtoa.c Normal file

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mozilla/js/src/jsdtoa.h Normal file
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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
*
* The contents of this file are subject to the Netscape Public
* License Version 1.1 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.mozilla.org/NPL/
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express oqr
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* The Original Code is Mozilla Communicator client code, released
* March 31, 1998.
*
* The Initial Developer of the Original Code is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All
* Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the
* terms of the GNU Public License (the "GPL"), in which case the
* provisions of the GPL are applicable instead of those above.
* If you wish to allow use of your version of this file only
* under the terms of the GPL and not to allow others to use your
* version of this file under the NPL, indicate your decision by
* deleting the provisions above and replace them with the notice
* and other provisions required by the GPL. If you do not delete
* the provisions above, a recipient may use your version of this
* file under either the NPL or the GPL.
*/
#ifndef jsdtoa_h___
#define jsdtoa_h___
/*
* Public interface to portable double-precision floating point to string
* and back conversion package.
*/
#include "jscompat.h"
JS_BEGIN_EXTERN_C
/*
* JS_strtod() returns as a double-precision floating-point number
* the value represented by the character string pointed to by
* s00. The string is scanned up to the first unrecognized
* character.
* If the value of se is not (char **)NULL, a pointer to
* the character terminating the scan is returned in the location pointed
* to by se. If no number can be formed, se is set to s00r, and
* zero is returned.
*/
JS_FRIEND_API(double)
JS_strtod(const char *s00, char **se);
/*
* Modes for converting floating-point numbers to strings.
*
* Some of the modes can round-trip; this means that if the number is converted to
* a string using one of these mode and then converted back to a number, the result
* will be identical to the original number (except that, due to ECMA, -0 will get converted
* to +0). These round-trip modes return the minimum number of significand digits that
* permit the round trip.
*
* Some of the modes take an integer parameter <precision>.
*/
/* NB: Keep this in sync with number_constants[]. */
typedef enum JSDToStrMode {
DTOSTR_STANDARD, /* Either fixed or exponential format; round-trip */
DTOSTR_STANDARD_EXPONENTIAL, /* Always exponential format; round-trip */
DTOSTR_FIXED, /* Round to <precision> digits after the decimal point; exponential if number is large */
DTOSTR_EXPONENTIAL, /* Always exponential format; <precision> significant digits */
DTOSTR_PRECISION /* Either fixed or exponential format; <precision> significant digits */
} JSDToStrMode;
/* Maximum number of characters (including trailing null) that a DTOSTR_STANDARD or DTOSTR_STANDARD_EXPONENTIAL
* conversion can produce. This maximum is reached for a number like -1.2345678901234567e+123. */
#define DTOSTR_STANDARD_BUFFER_SIZE 25
/* Maximum number of characters (including trailing null) that one of the other conversions
* can produce. This maximum is reached for TO_FIXED, which can generate up to 21 digits before the decimal point. */
#define DTOSTR_VARIABLE_BUFFER_SIZE(precision) ((precision)+24 > DTOSTR_STANDARD_BUFFER_SIZE ? (precision)+24 : DTOSTR_STANDARD_BUFFER_SIZE)
/*
* Convert dval according to the given mode and return a pointer to the resulting ASCII string.
* The result is held somewhere in buffer, but not necessarily at the beginning. The size of
* buffer is given in bufferSize, and must be at least as large as given by the above macros.
*
* Return NULL if out of memory.
*/
JS_FRIEND_API(char *)
JS_dtostr(char *buffer, size_t bufferSize, JSDToStrMode mode, int precision, double dval);
/*
* Convert d to a string in the given base. The integral part of d will be printed exactly
* in that base, regardless of how large it is, because there is no exponential notation for non-base-ten
* numbers. The fractional part will be rounded to as few digits as possible while still preserving
* the round-trip property (analogous to that of printing decimal numbers). In other words, if one were
* to read the resulting string in via a hypothetical base-number-reading routine that rounds to the nearest
* IEEE double (and to an even significand if there are two equally near doubles), then the result would
* equal d (except for -0.0, which converts to "0", and NaN, which is not equal to itself).
*
* Return NULL if out of memory. If the result is not NULL, it must be released via free().
*/
JS_FRIEND_API(char *)
JS_dtobasestr(int base, double d);
JS_END_EXTERN_C
#endif /* jsdtoa_h___ */

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mozilla/js/src/jsemit.h Normal file
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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
*
* The contents of this file are subject to the Netscape Public
* License Version 1.1 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.mozilla.org/NPL/
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express oqr
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* The Original Code is Mozilla Communicator client code, released
* March 31, 1998.
*
* The Initial Developer of the Original Code is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All
* Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the
* terms of the GNU Public License (the "GPL"), in which case the
* provisions of the GPL are applicable instead of those above.
* If you wish to allow use of your version of this file only
* under the terms of the GPL and not to allow others to use your
* version of this file under the NPL, indicate your decision by
* deleting the provisions above and replace them with the notice
* and other provisions required by the GPL. If you do not delete
* the provisions above, a recipient may use your version of this
* file under either the NPL or the GPL.
*/
#ifndef jsemit_h___
#define jsemit_h___
/*
* JS bytecode generation.
*/
#include "jsstddef.h"
#include "jstypes.h"
#include "jsatom.h"
#include "jsopcode.h"
#include "jsprvtd.h"
#include "jspubtd.h"
JS_BEGIN_EXTERN_C
typedef enum JSStmtType {
STMT_BLOCK = 0, /* compound statement: { s1[;... sN] } */
STMT_LABEL = 1, /* labeled statement: L: s */
STMT_IF = 2, /* if (then) statement */
STMT_ELSE = 3, /* else clause of if statement */
STMT_SWITCH = 4, /* switch statement */
STMT_WITH = 5, /* with statement */
STMT_TRY = 6, /* try statement */
STMT_CATCH = 7, /* catch block */
STMT_FINALLY = 8, /* finally statement */
STMT_DO_LOOP = 9, /* do/while loop statement */
STMT_FOR_LOOP = 10, /* for loop statement */
STMT_FOR_IN_LOOP = 11, /* for/in loop statement */
STMT_WHILE_LOOP = 12 /* while loop statement */
} JSStmtType;
#define STMT_IS_LOOP(stmt) ((stmt)->type >= STMT_DO_LOOP)
typedef struct JSStmtInfo JSStmtInfo;
struct JSStmtInfo {
JSStmtType type; /* statement type */
ptrdiff_t top; /* offset of loop top from cg base */
ptrdiff_t update; /* loop update offset (top if none) */
ptrdiff_t breaks; /* offset of last break in loop */
ptrdiff_t continues; /* offset of last continue in loop */
JSAtom *label; /* name of LABEL or CATCH var */
JSStmtInfo *down; /* info for enclosing statement */
};
#define SET_STATEMENT_TOP(stmt, top) \
((stmt)->top = (stmt)->update = (top), (stmt)->breaks = (stmt)->continues = (-1))
struct JSTreeContext { /* tree context for semantic checks */
uint32 flags; /* statement state flags, see below */
uint32 tryCount; /* total count of try statements parsed */
JSStmtInfo *topStmt; /* top of statement info stack */
JSAtomList decls; /* function, const, and var declarations */
};
#define TCF_TOP_LEVEL 0x01 /* at TL of program or function body */
#define TCF_IN_FUNCTION 0x02 /* parsing inside function body */
#define TCF_RETURN_EXPR 0x04 /* function has 'return expr;' */
#define TCF_RETURN_VOID 0x08 /* function has 'return;' */
#define TCF_IN_FOR_INIT 0x10 /* parsing init expr of for; exclude 'in' */
#define TCF_FUN_VS_VAR 0x20 /* function and var with same name */
#define TREE_CONTEXT_INIT(tc) \
((tc)->flags = TCF_TOP_LEVEL, (tc)->tryCount = 0, (tc)->topStmt = NULL, \
ATOM_LIST_INIT(&(tc)->decls))
#define TREE_CONTEXT_FREE(tc) \
((void)0)
struct JSCodeGenerator {
void *codeMark; /* low watermark in cx->codePool */
void *noteMark; /* low watermark in cx->notePool */
void *tempMark; /* low watermark in cx->tempPool */
struct {
jsbytecode *base; /* base of JS bytecode vector */
jsbytecode *limit; /* one byte beyond end of bytecode */
jsbytecode *next; /* pointer to next free bytecode */
} prolog, main, *current;
const char *filename; /* null or weak link to source filename */
uintN firstLine; /* first line, for js_NewScriptFromCG */
uintN currentLine; /* line number for tree-based srcnote gen */
JSPrincipals *principals; /* principals for constant folding eval */
JSTreeContext treeContext; /* for break/continue code generation */
JSAtomList atomList; /* literals indexed for mapping */
intN stackDepth; /* current stack depth in script frame */
uintN maxStackDepth; /* maximum stack depth so far */
jssrcnote *notes; /* source notes, see below */
uintN noteCount; /* number of source notes so far */
ptrdiff_t lastNoteOffset; /* code offset for last source note */
JSTryNote *tryBase; /* first exception handling note */
JSTryNote *tryNext; /* next available note */
size_t tryNoteSpace; /* # of bytes allocated at tryBase */
};
#define CG_BASE(cg) ((cg)->current->base)
#define CG_LIMIT(cg) ((cg)->current->limit)
#define CG_NEXT(cg) ((cg)->current->next)
#define CG_CODE(cg,offset) (CG_BASE(cg) + (offset))
#define CG_OFFSET(cg) PTRDIFF(CG_NEXT(cg), CG_BASE(cg), jsbytecode)
#define CG_PROLOG_BASE(cg) ((cg)->prolog.base)
#define CG_PROLOG_LIMIT(cg) ((cg)->prolog.limit)
#define CG_PROLOG_NEXT(cg) ((cg)->prolog.next)
#define CG_PROLOG_CODE(cg,poff) (CG_PROLOG_BASE(cg) + (poff))
#define CG_PROLOG_OFFSET(cg) PTRDIFF(CG_PROLOG_NEXT(cg), CG_PROLOG_BASE(cg),\
jsbytecode)
#define CG_SWITCH_TO_MAIN(cg) ((cg)->current = &(cg)->main)
#define CG_SWITCH_TO_PROLOG(cg) ((cg)->current = &(cg)->prolog)
/*
* Initialize cg to allocate bytecode space from cx->codePool, source note
* space from cx->notePool, and all other arena-allocated temporaries from
* cx->tempPool. Return true on success. Report an error and return false
* if the initial code segment can't be allocated.
*/
extern JS_FRIEND_API(JSBool)
js_InitCodeGenerator(JSContext *cx, JSCodeGenerator *cg,
const char *filename, uintN lineno,
JSPrincipals *principals);
/*
* Release cx->codePool, cx->notePool, and cx->tempPool to marks set by
* js_InitCodeGenerator. Note that cgs are magic: they own the arena pool
* "tops-of-stack" space above their codeMark, noteMark, and tempMark points.
* This means you cannot alloc from tempPool and save the pointer beyond the
* next JS_FinishCodeGenerator.
*/
extern JS_FRIEND_API(void)
js_FinishCodeGenerator(JSContext *cx, JSCodeGenerator *cg);
/*
* Emit one bytecode.
*/
extern ptrdiff_t
js_Emit1(JSContext *cx, JSCodeGenerator *cg, JSOp op);
/*
* Emit two bytecodes, an opcode (op) with a byte of immediate operand (op1).
*/
extern ptrdiff_t
js_Emit2(JSContext *cx, JSCodeGenerator *cg, JSOp op, jsbytecode op1);
/*
* Emit three bytecodes, an opcode with two bytes of immediate operands.
*/
extern ptrdiff_t
js_Emit3(JSContext *cx, JSCodeGenerator *cg, JSOp op, jsbytecode op1,
jsbytecode op2);
/*
* Emit (1 + extra) bytecodes, for N bytes of op and its immediate operand.
*/
extern ptrdiff_t
js_EmitN(JSContext *cx, JSCodeGenerator *cg, JSOp op, size_t extra);
/*
* Unsafe macro to call js_SetJumpOffset and return false if it does.
*/
#define CHECK_AND_SET_JUMP_OFFSET(cx,cg,pc,off) \
JS_BEGIN_MACRO \
if (!js_SetJumpOffset(cx, cg, pc, off)) \
return JS_FALSE; \
JS_END_MACRO
#define CHECK_AND_SET_JUMP_OFFSET_AT(cx,cg,off) \
CHECK_AND_SET_JUMP_OFFSET(cx, cg, CG_CODE(cg,off), CG_OFFSET(cg) - (off))
extern JSBool
js_SetJumpOffset(JSContext *cx, JSCodeGenerator *cg, jsbytecode *pc,
ptrdiff_t off);
/*
* Push the C-stack-allocated struct at stmt onto the stmtInfo stack.
*/
extern void
js_PushStatement(JSTreeContext *tc, JSStmtInfo *stmt, JSStmtType type,
ptrdiff_t top);
/*
* Emit a break instruction, recording it for backpatching.
*/
extern ptrdiff_t
js_EmitBreak(JSContext *cx, JSCodeGenerator *cg, JSStmtInfo *stmt,
JSAtomListElement *label);
/*
* Emit a continue instruction, recording it for backpatching.
*/
extern ptrdiff_t
js_EmitContinue(JSContext *cx, JSCodeGenerator *cg, JSStmtInfo *stmt,
JSAtomListElement *label);
/*
* Pop tc->topStmt. If the top JSStmtInfo struct is not stack-allocated, it
* is up to the caller to free it.
*/
extern void
js_PopStatement(JSTreeContext *tc);
/*
* Like js_PopStatement(&cg->treeContext), also patch breaks and continues.
* May fail if a jump offset overflows.
*/
extern JSBool
js_PopStatementCG(JSContext *cx, JSCodeGenerator *cg);
/*
* Emit code into cg for the tree rooted at pn.
*/
extern JSBool
js_EmitTree(JSContext *cx, JSCodeGenerator *cg, JSParseNode *pn);
/*
* Emit code into cg for the tree rooted at body, then create a persistent
* script for fun from cg.
*/
extern JSBool
js_EmitFunctionBody(JSContext *cx, JSCodeGenerator *cg, JSParseNode *body,
JSFunction *fun);
/*
* Source notes generated along with bytecode for decompiling and debugging.
* A source note is a uint8 with 5 bits of type and 3 of offset from the pc of
* the previous note. If 3 bits of offset aren't enough, extended delta notes
* (SRC_XDELTA) consisting of 3 set high order bits followed by 5 offset bits
* are emitted before the next note. Some notes have operand offsets encoded
* immediately after them, in note bytes or byte-triples.
*
* Source Note Extended Delta
* +7-6-5-4-3+2-1-0+ +7-6-5+4-3-2-1-0+
* |note-type|delta| |1 1 1|ext-delta|
* +---------+-----+ +-----+---------+
*
* At most one "gettable" note (i.e., a note of type other than SRC_NEWLINE,
* SRC_SETLINE, and SRC_XDELTA) applies to a given bytecode.
*
* NB: the js_SrcNoteName and js_SrcNoteArity arrays in jsemit.c are indexed
* by this enum, so their initializers need to match the order here.
*/
typedef enum JSSrcNoteType {
SRC_NULL = 0, /* terminates a note vector */
SRC_IF = 1, /* JSOP_IFEQ bytecode is from an if-then */
SRC_IF_ELSE = 2, /* JSOP_IFEQ bytecode is from an if-then-else */
SRC_WHILE = 3, /* JSOP_IFEQ is from a while loop */
SRC_FOR = 4, /* JSOP_NOP or JSOP_POP in for loop head */
SRC_CONTINUE = 5, /* JSOP_GOTO is a continue, not a break;
also used on JSOP_ENDINIT if extra comma
at end of array literal: [1,2,,] */
SRC_VAR = 6, /* JSOP_NAME/SETNAME/FORNAME in a var decl */
SRC_PCDELTA = 7, /* offset from comma-operator to next POP,
or from CONDSWITCH to first CASE opcode */
SRC_ASSIGNOP = 8, /* += or another assign-op follows */
SRC_COND = 9, /* JSOP_IFEQ is from conditional ?: operator */
SRC_PAREN = 10, /* JSOP_NOP generated to mark user parens */
SRC_HIDDEN = 11, /* opcode shouldn't be decompiled */
SRC_PCBASE = 12, /* offset of first obj.prop.subprop bytecode */
SRC_LABEL = 13, /* JSOP_NOP for label: with atomid immediate */
SRC_LABELBRACE = 14, /* JSOP_NOP for label: {...} begin brace */
SRC_ENDBRACE = 15, /* JSOP_NOP for label: {...} end brace */
SRC_BREAK2LABEL = 16, /* JSOP_GOTO for 'break label' with atomid */
SRC_CONT2LABEL = 17, /* JSOP_GOTO for 'continue label' with atomid */
SRC_SWITCH = 18, /* JSOP_*SWITCH with offset to end of switch,
2nd off to first JSOP_CASE if condswitch */
SRC_FUNCDEF = 19, /* JSOP_NOP for function f() with atomid */
SRC_TRYFIN = 20, /* JSOP_NOP for try or finally section */
SRC_CATCH = 21, /* catch block has guard */
SRC_CONST = 22, /* JSOP_SETCONST in a const decl */
SRC_RESERVED1 = 23, /* reserved for future use */
SRC_RESERVED2 = 24, /* reserved for future use */
SRC_RESERVED3 = 25, /* reserved for future use */
SRC_NEWLINE = 26, /* bytecode follows a source newline */
SRC_SETLINE = 27, /* a file-absolute source line number note */
SRC_XDELTA = 28 /* 28-31 are for extended delta notes */
} JSSrcNoteType;
#define SN_TYPE_BITS 5
#define SN_DELTA_BITS 3
#define SN_XDELTA_BITS 5
#define SN_TYPE_MASK (JS_BITMASK(SN_TYPE_BITS) << SN_DELTA_BITS)
#define SN_DELTA_MASK ((ptrdiff_t)JS_BITMASK(SN_DELTA_BITS))
#define SN_XDELTA_MASK ((ptrdiff_t)JS_BITMASK(SN_XDELTA_BITS))
#define SN_MAKE_NOTE(sn,t,d) (*(sn) = (jssrcnote) \
(((t) << SN_DELTA_BITS) \
| ((d) & SN_DELTA_MASK)))
#define SN_MAKE_XDELTA(sn,d) (*(sn) = (jssrcnote) \
((SRC_XDELTA << SN_DELTA_BITS) \
| ((d) & SN_XDELTA_MASK)))
#define SN_IS_XDELTA(sn) ((*(sn) >> SN_DELTA_BITS) >= SRC_XDELTA)
#define SN_TYPE(sn) (SN_IS_XDELTA(sn) ? SRC_XDELTA \
: *(sn) >> SN_DELTA_BITS)
#define SN_SET_TYPE(sn,type) SN_MAKE_NOTE(sn, type, SN_DELTA(sn))
#define SN_IS_GETTABLE(sn) (SN_TYPE(sn) < SRC_NEWLINE)
#define SN_DELTA(sn) ((ptrdiff_t)(SN_IS_XDELTA(sn) \
? *(sn) & SN_XDELTA_MASK \
: *(sn) & SN_DELTA_MASK))
#define SN_SET_DELTA(sn,delta) (SN_IS_XDELTA(sn) \
? SN_MAKE_XDELTA(sn, delta) \
: SN_MAKE_NOTE(sn, SN_TYPE(sn), delta))
#define SN_DELTA_LIMIT ((ptrdiff_t)JS_BIT(SN_DELTA_BITS))
#define SN_XDELTA_LIMIT ((ptrdiff_t)JS_BIT(SN_XDELTA_BITS))
/*
* Offset fields follow certain notes and are frequency-encoded: an offset in
* [0,0x7f] consumes one byte, an offset in [0x80,0x7fffff] takes three, and
* the high bit of the first byte is set.
*/
#define SN_3BYTE_OFFSET_FLAG 0x80
#define SN_3BYTE_OFFSET_MASK 0x7f
extern JS_FRIEND_DATA(const char *) js_SrcNoteName[];
extern JS_FRIEND_DATA(uint8) js_SrcNoteArity[];
extern JS_FRIEND_API(uintN) js_SrcNoteLength(jssrcnote *sn);
#define SN_LENGTH(sn) ((js_SrcNoteArity[SN_TYPE(sn)] == 0) ? 1 \
: js_SrcNoteLength(sn))
#define SN_NEXT(sn) ((sn) + SN_LENGTH(sn))
/* A source note array is terminated by an all-zero element. */
#define SN_MAKE_TERMINATOR(sn) (*(sn) = SRC_NULL)
#define SN_IS_TERMINATOR(sn) (*(sn) == SRC_NULL)
/*
* Append a new source note of the given type (and therefore size) to cg's
* notes dynamic array, updating cg->noteCount. Return the new note's index
* within the array pointed at by cg->notes. Return -1 if out of memory.
*/
extern intN
js_NewSrcNote(JSContext *cx, JSCodeGenerator *cg, JSSrcNoteType type);
extern intN
js_NewSrcNote2(JSContext *cx, JSCodeGenerator *cg, JSSrcNoteType type,
ptrdiff_t offset);
extern intN
js_NewSrcNote3(JSContext *cx, JSCodeGenerator *cg, JSSrcNoteType type,
ptrdiff_t offset1, ptrdiff_t offset2);
/*
* Get and set the offset operand identified by which (0 for the first, etc.).
*/
extern JS_FRIEND_API(ptrdiff_t)
js_GetSrcNoteOffset(jssrcnote *sn, uintN which);
extern JSBool
js_SetSrcNoteOffset(JSContext *cx, JSCodeGenerator *cg, uintN index,
uintN which, ptrdiff_t offset);
/*
* Finish taking source notes in cx's notePool by copying them to new
* stable store allocated via JS_malloc. Return null on malloc failure,
* which means this function reported an error.
*/
extern jssrcnote *
js_FinishTakingSrcNotes(JSContext *cx, JSCodeGenerator *cg);
/*
* Allocate cg->treeContext.tryCount notes (plus one for the end sentinel)
* from cx->tempPool and set up cg->tryBase/tryNext for exactly tryCount
* js_NewTryNote calls. The storage is freed by js_FinishCodeGenerator.
*/
extern JSBool
js_AllocTryNotes(JSContext *cx, JSCodeGenerator *cg);
/*
* Grab the next trynote slot in cg, filling it in appropriately.
*/
extern JSTryNote *
js_NewTryNote(JSContext *cx, JSCodeGenerator *cg, ptrdiff_t start,
ptrdiff_t end, ptrdiff_t catchStart);
/*
* Finish generating exception information, and copy it to JS_malloc
* storage.
*/
extern JSBool
js_FinishTakingTryNotes(JSContext *cx, JSCodeGenerator *cg, JSTryNote **tryp);
JS_END_EXTERN_C
#endif /* jsemit_h___ */

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mozilla/js/src/jsexn.c Normal file
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@@ -0,0 +1,672 @@
/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
*
* The contents of this file are subject to the Netscape Public
* License Version 1.1 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.mozilla.org/NPL/
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express oqr
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* The Original Code is Mozilla Communicator client code, released
* March 31, 1998.
*
* The Initial Developer of the Original Code is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All
* Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the
* terms of the GNU Public License (the "GPL"), in which case the
* provisions of the GPL are applicable instead of those above.
* If you wish to allow use of your version of this file only
* under the terms of the GPL and not to allow others to use your
* version of this file under the NPL, indicate your decision by
* deleting the provisions above and replace them with the notice
* and other provisions required by the GPL. If you do not delete
* the provisions above, a recipient may use your version of this
* file under either the NPL or the GPL.
*/
/*
* JS standard exception implementation.
*/
#include <string.h>
#include "jsstddef.h"
#include "jstypes.h"
#include "jsutil.h" /* Added by JSIFY */
#include "jsprf.h"
#include "jsapi.h"
#include "jscntxt.h"
#include "jsconfig.h"
#include "jsexn.h"
#include "jsfun.h"
#if JS_HAS_ERROR_EXCEPTIONS
#if !JS_HAS_EXCEPTIONS
# error "JS_HAS_EXCEPTIONS must be defined to use JS_HAS_ERROR_EXCEPTIONS"
#endif
/* Declaration to resolve circular reference of js_ErrorClass by Exception. */
static JSBool
Exception(JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval);
JSBool
js_exnHasInstance(JSContext *cx, JSObject *obj, jsval v, JSBool *bp);
static void
exn_finalize(JSContext *cx, JSObject *obj);
JSClass js_ErrorClass = {
"Exception",
JSCLASS_HAS_PRIVATE,
JS_PropertyStub, JS_PropertyStub, JS_PropertyStub, JS_PropertyStub,
JS_EnumerateStub, JS_ResolveStub, JS_ConvertStub, exn_finalize,
NULL, NULL, NULL, Exception,
0,0,{0,0}
};
/*
* A copy of the JSErrorReport originally generated.
*/
typedef struct JSExnPrivate {
JSErrorReport *errorReport;
} JSExnPrivate;
/*
* Copy everything interesting about an error into allocated memory.
*/
static JSExnPrivate *
exn_initPrivate(JSContext *cx, JSErrorReport *report)
{
JSExnPrivate *newPrivate;
JSErrorReport *newReport;
newPrivate = (JSExnPrivate *)JS_malloc(cx, sizeof (JSExnPrivate));
/* Copy the error report */
newReport = (JSErrorReport *)JS_malloc(cx, sizeof (JSErrorReport));
if (report->filename != NULL) {
newReport->filename =
(const char *)JS_malloc(cx, strlen(report->filename)+1);
strcpy((char *)newReport->filename, report->filename);
} else {
newReport->filename = NULL;
}
newReport->lineno = report->lineno;
/*
* We don't need to copy linebuf and tokenptr, because they
* point into the deflated string cache. (currently?)
*/
newReport->linebuf = report->linebuf;
newReport->tokenptr = report->tokenptr;
/*
* But we do need to copy uclinebuf, uctokenptr, because they're
* pointers into internal tokenstream structs, and may go away.
*
* NOTE nothing uses this and I'm not really maintaining it until
* I know it's the desired API.
*/
if (report->uclinebuf != NULL) {
jsint len = js_strlen(report->uclinebuf) + 1;
newReport->uclinebuf =
(const jschar *)JS_malloc(cx, len * sizeof(jschar));
js_strncpy((jschar *)newReport->uclinebuf, report->uclinebuf, len);
newReport->uctokenptr = newReport->uclinebuf + (report->uctokenptr -
report->uclinebuf);
} else
newReport->uclinebuf = newReport->uctokenptr = NULL;
if (report->ucmessage != NULL) {
jsint len = js_strlen(report->ucmessage) + 1;
newReport->ucmessage = (const jschar *)JS_malloc(cx, len * sizeof(jschar));
js_strncpy((jschar *)newReport->ucmessage, report->ucmessage, len);
if (report->messageArgs) {
intN i;
for (i = 0; report->messageArgs[i] != NULL; i++)
;
JS_ASSERT(i);
newReport->messageArgs =
(const jschar **)JS_malloc(cx, (i + 1) * sizeof(jschar *));
for (i = 0; report->messageArgs[i] != NULL; i++) {
len = js_strlen(report->messageArgs[i]) + 1;
newReport->messageArgs[i] =
(const jschar *)JS_malloc(cx, len * sizeof(jschar));
js_strncpy((jschar *)(newReport->messageArgs[i]),
report->messageArgs[i], len);
}
newReport->messageArgs[i] = NULL;
} else {
newReport->messageArgs = NULL;
}
} else {
newReport->ucmessage = NULL;
newReport->messageArgs = NULL;
}
newReport->errorNumber = report->errorNumber;
/* Note that this is before it gets flagged with JSREPORT_EXCEPTION */
newReport->flags = report->flags;
newPrivate->errorReport = newReport;
return newPrivate;
}
/*
* Undo all the damage done by exn_initPrivate.
*/
static void
exn_destroyPrivate(JSContext *cx, JSExnPrivate *privateData)
{
JSErrorReport *report;
const jschar **args;
report = privateData->errorReport;
JS_ASSERT(report);
if (report->uclinebuf)
JS_free(cx, (void *)report->uclinebuf);
if (report->filename)
JS_free(cx, (void *)report->filename);
if (report->ucmessage)
JS_free(cx, (void *)report->ucmessage);
if (report->messageArgs) {
args = report->messageArgs;
while(*args != NULL)
JS_free(cx, (void *)*args++);
JS_free(cx, (void *)report->messageArgs);
}
JS_free(cx, report);
JS_free(cx, privateData);
}
static void
exn_finalize(JSContext *cx, JSObject *obj)
{
JSExnPrivate *privateData;
jsval private;
private = OBJ_GET_SLOT(cx, obj, JSSLOT_PRIVATE);
if (private != JSVAL_NULL) {
privateData = JSVAL_TO_PRIVATE(private);
if (privateData)
exn_destroyPrivate(cx, privateData);
}
}
JSErrorReport *
js_ErrorFromException(JSContext *cx, jsval exn)
{
JSObject *obj;
JSExnPrivate *privateData;
jsval private;
if (JSVAL_IS_PRIMITIVE(exn))
return NULL;
obj = JSVAL_TO_OBJECT(exn);
if (OBJ_GET_CLASS(cx, obj) != &js_ErrorClass)
return NULL;
private = OBJ_GET_SLOT(cx, obj, JSSLOT_PRIVATE);
if (private == JSVAL_NULL)
return NULL;
privateData = JSVAL_TO_PRIVATE(private);
if (!privateData)
return NULL;
JS_ASSERT(privateData->errorReport);
return privateData->errorReport;
}
/* This must be kept in synch with the exceptions array below. */
typedef enum JSExnType {
JSEXN_NONE = -1,
JSEXN_ERR,
JSEXN_INTERNALERR,
JSEXN_EVALERR,
JSEXN_RANGEERR,
JSEXN_REFERENCEERR,
JSEXN_SYNTAXERR,
JSEXN_TYPEERR,
JSEXN_URIERR,
JSEXN_LIMIT
} JSExnType;
struct JSExnSpec {
int protoIndex;
const char *name;
};
static struct JSExnSpec exceptions[] = {
{ JSEXN_NONE, "Error" },
{ JSEXN_ERR, "InternalError" },
{ JSEXN_ERR, "EvalError" },
{ JSEXN_ERR, "RangeError" },
{ JSEXN_ERR, "ReferenceError" },
{ JSEXN_ERR, "SyntaxError" },
{ JSEXN_ERR, "TypeError" },
{ JSEXN_ERR, "URIError" },
{0,0}
};
static JSBool
Exception(JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval)
{
JSString *message;
/*
* Does it make sense to throw a not-a-function-error here?
* A constructor that was not a function would be novel.
*/
if (!cx->fp->constructing) {
return JS_TRUE;
}
/*
* If it's a new object of class Exception, then null out the private
* data so that the finalizer doesn't attempt to free it.
*/
if (OBJ_GET_CLASS(cx, obj) == &js_ErrorClass)
OBJ_SET_SLOT(cx, obj, JSSLOT_PRIVATE, JSVAL_NULL);
/*
* Set the 'message' property.
*/
if (argc > 0) {
message = js_ValueToString(cx, argv[0]);
if (!message)
return JS_FALSE;
} else {
message = cx->runtime->emptyString;
}
return JS_DefineProperty(cx, obj, "message", STRING_TO_JSVAL(message),
NULL, NULL, JSPROP_ENUMERATE);
}
/*
* Called by fun_hasInstance when 'obj' has js_ErrorClass, to see if
* 'v' could be an instanceof an exception from some other context
* - we'll know it is if it has that special 'something'
*/
JSBool
js_exnHasInstance(JSContext *cx, JSObject *obj, jsval v, JSBool *bp)
{
JSFunction *fun;
JSAtom *functionName;
jsval pval;
JSObject *obj2;
*bp = JS_FALSE;
fun = (JSFunction *)JS_GetPrivate(cx, obj);
functionName = fun->atom;
obj2 = JSVAL_TO_OBJECT(v);
if (!OBJ_GET_PROPERTY(cx, obj2, (jsid)functionName, &pval))
return JS_FALSE;
if (JSVAL_IS_INT(pval))
*bp = JS_TRUE;
return JS_TRUE;
}
/*
* Convert to string.
*
* This method only uses JavaScript-modifiable properties name, message; it is
* left to the host to check for private data and report filename and line
* number information along with this message.
*/
static JSBool
exn_toString(JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval)
{
jsval v;
JSString *name, *message, *result;
jschar *chars, *cp;
size_t length;
jsid id;
id = (jsid) cx->runtime->atomState.nameAtom;
if (!OBJ_GET_PROPERTY(cx, obj, id, &v) || !(name = js_ValueToString(cx, v)))
return JS_FALSE;
if (!JS_GetProperty(cx, obj, "message", &v) ||
!(message = js_ValueToString(cx, v)))
return JS_FALSE;
if (message->length > 0) {
length = name->length + message->length + 2;
cp = chars = JS_malloc(cx, (length + 1) * sizeof(jschar));
if (!chars)
return JS_FALSE;
js_strncpy(cp, name->chars, name->length);
cp += name->length;
*cp++ = ':'; *cp++ = ' ';
js_strncpy(cp, message->chars, message->length);
cp += message->length;
*cp = 0;
result = js_NewString(cx, chars, length, 0);
if (!result) {
JS_free(cx, chars);
return JS_FALSE;
}
} else {
result = name;
}
*rval = STRING_TO_JSVAL(result);
return JS_TRUE;
}
#if JS_HAS_TOSOURCE
/*
* Return a string that may eval to something similar to the original object.
*/
static JSBool
exn_toSource(JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval)
{
JSString *name, *message, *result;
jschar *chars, *cp;
jsid id;
size_t length;
jsval v;
id = (jsid) cx->runtime->atomState.nameAtom;
if (!OBJ_GET_PROPERTY(cx, obj, id, &v) || !(name = js_ValueToString(cx, v)))
return JS_FALSE;
if (!JS_GetProperty(cx, obj, "message", &v) ||
!(message = js_ValueToString(cx, v)))
return JS_FALSE;
length = (message->length > 0) ? name->length + message->length + 10
: name->length + 8;
cp = chars = JS_malloc(cx, (length + 1) * sizeof(jschar));
if (!chars)
return JS_FALSE;
*cp++ = '('; *cp++ = 'n'; *cp++ = 'e'; *cp++ = 'w'; *cp++ = ' ';
js_strncpy(cp, name->chars, name->length);
cp += name->length;
*cp++ = '(';
if (message->length > 0) {
*cp++ = '"';
js_strncpy(cp, message->chars, message->length);
cp += message->length;
*cp++ = '"';
}
*cp++ = ')'; *cp++ = ')'; *cp = 0;
result = js_NewString(cx, chars, length, 0);
if (!result) {
JS_free(cx, chars);
return JS_FALSE;
}
*rval = STRING_TO_JSVAL(result);
return JS_TRUE;
}
#endif
static JSFunctionSpec exception_methods[] = {
#if JS_HAS_TOSOURCE
{js_toSource_str, exn_toSource, 0,0,0},
#endif
{js_toString_str, exn_toString, 0,0,0},
{0,0,0,0,0}
};
JSObject *
js_InitExceptionClasses(JSContext *cx, JSObject *obj)
{
int i;
JSObject *protos[JSEXN_LIMIT];
/* Initialize the prototypes first. */
for (i = 0; exceptions[i].name != 0; i++) {
JSAtom *atom;
JSFunction *fun;
JSString *nameString;
int protoidx = exceptions[i].protoIndex;
/* Make the prototype for the current constructor name. */
protos[i] = js_NewObject(cx, &js_ErrorClass,
protoidx >= 0 ? protos[protoidx] : NULL,
obj);
if (!protos[i])
return NULL;
atom = js_Atomize(cx, exceptions[i].name, strlen(exceptions[i].name), 0);
/*
Now add a property to this prototype that can be used to
identify these kind of exceptions across multiple contexts.
This is a little less than satisfying, since other proto
chains may include objects with the same property but it'll
pass for now.
*/
if (!JS_DefineProperty(cx, protos[i], exceptions[i].name,
INT_TO_JSVAL(i),
NULL, NULL,
JSPROP_READONLY | JSPROP_PERMANENT))
return NULL;
/* Make a constructor function for the current name. */
fun = js_DefineFunction(cx, obj, atom, Exception, 1, 0);
if (!fun)
return NULL; /* XXX also remove named property from obj... */
/* Make this constructor make objects of class Exception. */
fun->clasp = &js_ErrorClass;
/* Make the prototype and constructor links. */
if (!js_SetClassPrototype(cx, fun->object,
protos[i],
JSPROP_READONLY | JSPROP_PERMANENT))
return NULL;
/* proto bootstrap bit from JS_InitClass omitted. */
nameString = JS_NewStringCopyZ(cx, exceptions[i].name);
if (nameString == NULL)
return NULL;
/* Add the name property to the prototype. */
if (!JS_DefineProperty(cx, protos[i], js_name_str,
STRING_TO_JSVAL(nameString),
NULL, NULL,
JSPROP_ENUMERATE)) {
/* release it? */
return NULL;
}
/* So finalize knows whether to. */
OBJ_SET_SLOT(cx, protos[i], JSSLOT_PRIVATE, JSVAL_NULL);
}
/*
* Add an empty message property. (To Exception.prototype only,
* because this property will be the same for all the exception
* protos.)
*/
if (!JS_DefineProperty(cx, protos[0], "message",
STRING_TO_JSVAL(cx->runtime->emptyString),
NULL, NULL, JSPROP_ENUMERATE))
return NULL;
/*
* Add methods only to Exception.prototype, because ostensibly all
* exception types delegate to that.
*/
if (!JS_DefineFunctions(cx, protos[0], exception_methods))
return NULL;
return protos[0];
}
static JSExnType errorToExceptionNum[] = {
#define MSG_DEF(name, number, count, exception, format) \
exception,
#include "js.msg"
#undef MSG_DEF
};
#if defined ( DEBUG_mccabe ) && defined ( PRINTNAMES )
/* For use below... get character strings for error name and exception name */
static struct exnname { char *name; char *exception; } errortoexnname[] = {
#define MSG_DEF(name, number, count, exception, format) \
{#name, #exception},
#include "js.msg"
#undef MSG_DEF
};
#endif /* DEBUG */
JSBool
js_ErrorToException(JSContext *cx, const char *message, JSErrorReport *reportp)
{
JSErrNum errorNumber;
JSObject *errObject, *errProto;
JSExnType exn;
JSExnPrivate *privateData;
JSString *msgstr;
/* Find the exception index associated with this error. */
JS_ASSERT(reportp);
if (JSREPORT_IS_WARNING(reportp->flags))
return JS_FALSE;
errorNumber = reportp->errorNumber;
exn = errorToExceptionNum[errorNumber];
JS_ASSERT(exn < JSEXN_LIMIT);
#if defined( DEBUG_mccabe ) && defined ( PRINTNAMES )
/* Print the error name and the associated exception name to stderr */
fprintf(stderr, "%s\t%s\n",
errortoexnname[errorNumber].name,
errortoexnname[errorNumber].exception);
#endif
/*
* Return false (no exception raised) if no exception is associated
* with the given error number.
*/
if (exn == JSEXN_NONE)
return JS_FALSE;
/*
* Try to get an appropriate prototype by looking up the corresponding
* exception constructor name in the current context. If the constructor
* has been deleted or overwritten, this may fail or return NULL, and
* js_NewObject will fall back to using Object.prototype.
*/
if (!js_GetClassPrototype(cx, exceptions[exn].name, &errProto))
errProto = NULL;
/*
* Use js_NewObject instead of js_ConstructObject, because
* js_ConstructObject seems to require a frame.
*/
errObject = js_NewObject(cx, &js_ErrorClass, errProto, NULL);
/* Store 'message' as a javascript-visible value. */
msgstr = JS_NewStringCopyZ(cx, message);
if (!JS_DefineProperty(cx, errObject, "message", STRING_TO_JSVAL(msgstr),
NULL, NULL,
JSPROP_ENUMERATE))
return JS_FALSE;
/*
* Construct a new copy of the error report, and store it in the
* exception objects' private data. We can't use the error report
* handed in, because it's stack-allocated, and may point to transient
* data in the JSTokenStream.
*/
privateData = exn_initPrivate(cx, reportp);
OBJ_SET_SLOT(cx, errObject, JSSLOT_PRIVATE, PRIVATE_TO_JSVAL(privateData));
/* Set the generated Exception object as the current exception. */
JS_SetPendingException(cx, OBJECT_TO_JSVAL(errObject));
/* Flag the error report passed in to indicate an exception was raised. */
reportp->flags |= JSREPORT_EXCEPTION;
return JS_TRUE;
}
#endif /* JS_HAS_ERROR_EXCEPTIONS */
#if JS_HAS_EXCEPTIONS
extern JSBool
js_ReportUncaughtException(JSContext *cx)
{
JSObject *exnObject;
JSString *str;
jsval exn;
JSErrorReport *reportp;
const char *bytes;
if (!JS_IsExceptionPending(cx))
return JS_FALSE;
if (!JS_GetPendingException(cx, &exn))
return JS_FALSE;
/*
* Because js_ValueToString below could error and an exception object
* could become unrooted, we root it here.
*/
if (JSVAL_IS_OBJECT(exn) && exn != JSVAL_NULL) {
exnObject = JSVAL_TO_OBJECT(exn);
if (!js_AddRoot(cx, &exnObject, "exn.report.root"))
return JS_FALSE;
} else {
exnObject = NULL;
}
str = js_ValueToString(cx, exn);
#if JS_HAS_ERROR_EXCEPTIONS
reportp = js_ErrorFromException(cx, exn);
#else
reportp = NULL;
#endif
if (str != NULL) {
bytes = js_GetStringBytes(str);
}
else {
bytes = "null";
}
if (reportp == NULL) {
/*
* XXXmccabe todo: Instead of doing this, synthesize an error report
* struct that includes the filename, lineno where the exception was
* originally thrown.
*/
JS_ReportErrorNumber(cx, js_GetErrorMessage, NULL,
JSMSG_UNCAUGHT_EXCEPTION, bytes);
} else {
/* Flag the error as an exception. */
reportp->flags |= JSREPORT_EXCEPTION;
js_ReportErrorAgain(cx, bytes, reportp);
}
if (exnObject != NULL)
js_RemoveRoot(cx->runtime, &exnObject);
return JS_TRUE;
}
#endif /* JS_HAS_EXCEPTIONS */

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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
*
* The contents of this file are subject to the Netscape Public
* License Version 1.1 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.mozilla.org/NPL/
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express oqr
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* The Original Code is Mozilla Communicator client code, released
* March 31, 1998.
*
* The Initial Developer of the Original Code is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All
* Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the
* terms of the GNU Public License (the "GPL"), in which case the
* provisions of the GPL are applicable instead of those above.
* If you wish to allow use of your version of this file only
* under the terms of the GPL and not to allow others to use your
* version of this file under the NPL, indicate your decision by
* deleting the provisions above and replace them with the notice
* and other provisions required by the GPL. If you do not delete
* the provisions above, a recipient may use your version of this
* file under either the NPL or the GPL.
*/
/*
* JS runtime exception classes.
*/
#ifndef jsexn_h___
#define jsexn_h___
JS_BEGIN_EXTERN_C
/*
* Initialize exception object hierarchy.
*/
extern JSObject *
js_InitExceptionClasses(JSContext *cx, JSObject *obj);
/*
* Given a JSErrorReport, check to see if there is an exception associated with
* the error number. If there is, then create an appropriate exception object,
* set it as the pending exception, and set the JSREPORT_EXCEPTION flag on the
* error report. Exception-aware host error reporters should probably ignore
* error reports so flagged. Returns JS_TRUE if an associated exception is
* found and set, JS_FALSE otherwise..
*/
extern JSBool
js_ErrorToException(JSContext *cx, const char *message, JSErrorReport *reportp);
/*
* Called if a JS API call to js_Execute or js_InternalCall fails; calls the
* error reporter with the error report associated with any uncaught exception
* that has been raised. Returns true if there was an exception pending, and
* the error reporter was actually called.
*
* The JSErrorReport * that the error reporter is called with is currently
* associated with a JavaScript object, and is not guaranteed to persist after
* the object is collected. Any persistent uses of the JSErrorReport contents
* should make their own copy.
*
* The flags field of the JSErrorReport will have the JSREPORT_EXCEPTION flag
* set; embeddings that want to silently propagate JavaScript exceptions to
* other contexts may want to use an error reporter that ignores errors with
* this flag.
*/
extern JSBool
js_ReportUncaughtException(JSContext *cx);
extern JS_FRIEND_DATA(JSClass) js_ErrorClass;
extern JSBool
js_exnHasInstance(JSContext *cx, JSObject *obj, jsval v, JSBool *bp);
extern JSErrorReport *
js_ErrorFromException(JSContext *cx, jsval exn);
JS_END_EXTERN_C
#endif /* jsexn_h___ */

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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
*
* The contents of this file are subject to the Netscape Public
* License Version 1.1 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.mozilla.org/NPL/
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express oqr
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* The Original Code is Mozilla Communicator client code, released
* March 31, 1998.
*
* The Initial Developer of the Original Code is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All
* Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the
* terms of the GNU Public License (the "GPL"), in which case the
* provisions of the GPL are applicable instead of those above.
* If you wish to allow use of your version of this file only
* under the terms of the GPL and not to allow others to use your
* version of this file under the NPL, indicate your decision by
* deleting the provisions above and replace them with the notice
* and other provisions required by the GPL. If you do not delete
* the provisions above, a recipient may use your version of this
* file under either the NPL or the GPL.
*/
#ifndef _jsfile_h__
#define _jsfile_h__
#if JS_HAS_FILE_OBJECT
extern JS_PUBLIC_API(JSObject*)
js_InitFileClass(JSContext *cx, JSObject* obj, JSBool initStandardStreams);
extern JS_PUBLIC_API(JSObject*)
js_NewFileObject(JSContext *cx, char *bytes);
#endif /* JS_HAS_FILE_OBJECT */
#endif /* _jsfile_h__ */

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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
*
* The contents of this file are subject to the Netscape Public
* License Version 1.1 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.mozilla.org/NPL/
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express oqr
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* The Original Code is Mozilla Communicator client code, released
* March 31, 1998.
*
* The Initial Developer of the Original Code is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All
* Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the
* terms of the GNU Public License (the "GPL"), in which case the
* provisions of the GPL are applicable instead of those above.
* If you wish to allow use of your version of this file only
* under the terms of the GPL and not to allow others to use your
* version of this file under the NPL, indicate your decision by
* deleting the provisions above and replace them with the notice
* and other provisions required by the GPL. If you do not delete
* the provisions above, a recipient may use your version of this
* file under either the NPL or the GPL.
*/
/*
Error messages for jsfile.c. See js.msg for format specification.
*/
MSG_DEF(JSFILEMSG_NOT_AN_ERROR, 0, 0, JSEXN_NONE, "<Error #0 is reserved>")
MSG_DEF(JSFILEMSG_FILE_CONSTRUCTOR_UNDEFINED_ERROR, 1, 0, JSEXN_NONE, "File constructor is undefined")
MSG_DEF(JSFILEMSG_FILE_CURRENTDIR_UNDEFINED_ERROR, 2, 0, JSEXN_NONE, "File.currentDir is undefined")
MSG_DEF(JSFILEMSG_FIRST_ARGUMENT_OPEN_NOT_STRING_ERROR, 3, 1, JSEXN_NONE, "The first argument {0} to file.open must be a string")
MSG_DEF(JSFILEMSG_SECOND_ARGUMENT_OPEN_NOT_STRING_ERROR, 4, 0, JSEXN_NONE, "The second argument to file.open must be a string")
MSG_DEF(JSFILEMSG_CANNOT_COPY_FILE_OPEN_FOR_WRITING_ERROR, 5, 1, JSEXN_NONE, "Cannot copy file {0} open for writing")
MSG_DEF(JSFILEMSG_CANNOT_ACCESS_FILE_INFO_ERROR, 6, 1, JSEXN_NONE, "Cannot access file information for {0}")
MSG_DEF(JSFILEMSG_COPY_READ_ERROR, 7, 1, JSEXN_NONE, "An error occured while attempting to read a file {0} to copy")
MSG_DEF(JSFILEMSG_COPY_WRITE_ERROR, 8, 1, JSEXN_NONE, "An error occured while attempting to copy into file {0}")
MSG_DEF(JSFILEMSG_EXPECTS_ONE_ARG_ERROR, 9, 0, JSEXN_NONE, "Operation {0} expects one argument, not {1}")
MSG_DEF(JSFILEMSG_CANNOT_FLUSH_CLOSE_FILE_ERROR, 10, 1, JSEXN_NONE, "Cannot flush closed file {0}")
MSG_DEF(JSFILEMSG_CANNOT_OPEN_WRITING_ERROR, 11, 1, JSEXN_NONE, "Cannot open file {0} for writing")
MSG_DEF(JSFILEMSG_WRITEALL_EXPECTS_ONE_ARG_ERROR, 12, 0, JSEXN_NONE, "writeAll expects one argument")
MSG_DEF(JSFILEMSG_FIRST_ARGUMENT_WRITEALL_NOT_ARRAY_ERROR, 13, 0, JSEXN_NONE, "writeAll expects an array as an argument")
MSG_DEF(JSFILEMSG_CANNOT_OPEN_FILE_ERROR, 15, 1, JSEXN_NONE, "Cannot open file {0}")
MSG_DEF(JSFILEMSG_FIRST_ARGUMENT_CONSTRUCTOR_NOT_STRING_ERROR, 16, 1, JSEXN_NONE, "The argument to the File constructor {0} must be a string")
MSG_DEF(JSFILEMSG_BIDIRECTIONAL_PIPE_NOT_SUPPORTED, 17, 0, JSEXN_NONE, "Bidirectional pipes are not supported")
MSG_DEF(JSFILEMSG_OPEN_MODE_NOT_SUPPORTED_WITH_PIPES, 18, 2, JSEXN_NONE, "The opening mode you have chosen {0} is not supported by the pipe you are trying to open: {1}")
MSG_DEF(JSFILEMSG_OPEN_FAILED, 19, 1, JSEXN_NONE, "open on file {0} failed")
MSG_DEF(JSFILEMSG_CLOSE_FAILED, 20, 1, JSEXN_NONE, "close on file {0} failed")
MSG_DEF(JSFILEMSG_PCLOSE_FAILED, 21, 1, JSEXN_NONE, "pclose on file {0} failed")
MSG_DEF(JSFILEMSG_REMOVE_FAILED, 22, 1, JSEXN_NONE, "remove on file {0} failed")
MSG_DEF(JSFILEMSG_CANNOT_ACCESS_FILE_STATUS, 23, 1, JSEXN_NONE, "Cannot access file status for {0}")
MSG_DEF(JSFILEMSG_RENAME_FAILED, 24, 2, JSEXN_NONE, "Cannot rename {0} to {1}")
MSG_DEF(JSFILEMSG_WRITE_FAILED, 25, 1, JSEXN_NONE, "Write failed on file {0}")
MSG_DEF(JSFILEMSG_READ_FAILED, 26, 1, JSEXN_NONE, "Read failed on file {0}")
MSG_DEF(JSFILEMSG_SKIP_FAILED, 27, 1, JSEXN_NONE, "Skip failed on file {0}")
MSG_DEF(JSFILEMSG_FIRST_ARGUMENT_MUST_BE_A_FUNCTION_OR_REGEX, 28, 1, JSEXN_NONE, "The first argument to file.list must be a function or a regex")
MSG_DEF(JSFILEMSG_CANNOT_DO_LIST_ON_A_FILE, 29, 1, JSEXN_NONE, "{0} must be a directory, cannot do list")
MSG_DEF(JSFILEMSG_NATIVE_OPERATION_IS_NOT_SUPPORTED, 30, 2, JSEXN_NONE, "Native operation {0} is not supported on {1}")
MSG_DEF(JSFILEMSG_CANNOT_SET_PRIVATE_FILE, 31, 1, JSEXN_NONE, "Cannot set private data for file {0}")
MSG_DEF(JSFILEMSG_FIRST_ARGUMENT_MUST_BE_A_NUMBER, 32, 2, JSEXN_NONE, "First argument to {0} must be a number, not {1}")
MSG_DEF(JSFILEMSG_CANNOT_WRITE, 33, 1, JSEXN_NONE, "Cannot write to {0}, file mode is different")
MSG_DEF(JSFILEMSG_CANNOT_READ, 34, 1, JSEXN_NONE, "Cannot read from {0}, file mode is different")
MSG_DEF(JSFILEMSG_CANNOT_FLUSH, 35, 1, JSEXN_NONE, "Flush failed on {0}")
MSG_DEF(JSFILEMSG_OP_FAILED, 36, 1, JSEXN_NONE, "File operation {0} failed")
MSG_DEF(JSFILEMSG_FILE_MUST_BE_OPEN, 37, 1, JSEXN_NONE, "File must be open for {0}")
MSG_DEF(JSFILEMSG_FILE_MUST_BE_CLOSED, 38, 1, JSEXN_NONE, "File must be closed for {0}")
MSG_DEF(JSFILEMSG_NO_RANDOM_ACCESS, 39, 1, JSEXN_NONE, "File {0} doesn't allow random access")
MSG_DEF(JSFILEMSG_OBJECT_CREATION_FAILED, 40, 1, JSEXN_NONE, "Couldn't create {0}")
MSG_DEF(JSFILEMSG_CANNOT_OPEN_DIR, 41, 1, JSEXN_NONE, "Couldn't open directory {0}")
MSG_DEF(JSFILEMSG_CANNOT_REPORT_POSITION, 42, 1, JSEXN_NONE, "Couldn't report position for {0}")
MSG_DEF(JSFILEMSG_CANNOT_SET_POSITION, 43, 1, JSEXN_NONE, "Couldn't set position for {0}")
MSG_DEF(JSFILEMSG_INIT_FAILED, 44, 0, JSEXN_NONE, "File class initialization failed")

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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
*
* The contents of this file are subject to the Netscape Public
* License Version 1.1 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.mozilla.org/NPL/
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express oqr
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* The Original Code is Mozilla Communicator client code, released
* March 31, 1998.
*
* The Initial Developer of the Original Code is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All
* Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the
* terms of the GNU Public License (the "GPL"), in which case the
* provisions of the GPL are applicable instead of those above.
* If you wish to allow use of your version of this file only
* under the terms of the GPL and not to allow others to use your
* version of this file under the NPL, indicate your decision by
* deleting the provisions above and replace them with the notice
* and other provisions required by the GPL. If you do not delete
* the provisions above, a recipient may use your version of this
* file under either the NPL or the GPL.
*/
#ifndef jsfun_h___
#define jsfun_h___
/*
* JS function definitions.
*/
#include "jsprvtd.h"
#include "jspubtd.h"
JS_BEGIN_EXTERN_C
struct JSFunction {
jsrefcount nrefs; /* number of referencing objects */
JSObject *object; /* back-pointer to GC'ed object header */
JSNative call; /* native method pointer or null */
uint16 nargs; /* minimum number of actual arguments */
uint16 extra; /* number of arg slots for local GC roots */
uint16 nvars; /* number of local variables */
uint8 flags; /* bound method and other flags, see jsapi.h */
uint8 spare; /* reserved for future use */
JSAtom *atom; /* name for diagnostics and decompiling */
JSScript *script; /* interpreted bytecode descriptor or null */
JSClass *clasp; /* this function is a constructor for objects
* of this class */
};
extern JSClass js_ArgumentsClass;
extern JSClass js_CallClass;
/* JS_FRIEND_DATA so that JSVAL_IS_FUNCTION is callable from outside */
extern JS_FRIEND_DATA(JSClass) js_FunctionClass;
/*
* NB: jsapi.h and jsobj.h must be included before any call to this macro.
*/
#define JSVAL_IS_FUNCTION(cx, v) \
(JSVAL_IS_OBJECT(v) && JSVAL_TO_OBJECT(v) && \
OBJ_GET_CLASS(cx, JSVAL_TO_OBJECT(v)) == &js_FunctionClass)
extern JSBool
js_IsIdentifier(JSString *str);
extern JSObject *
js_InitFunctionClass(JSContext *cx, JSObject *obj);
extern JSBool
js_InitArgsAndCallClasses(JSContext *cx, JSObject *obj,
JSObject *objProto);
extern JSFunction *
js_NewFunction(JSContext *cx, JSObject *funobj, JSNative call, uintN nargs,
uintN flags, JSObject *parent, JSAtom *atom);
extern JSObject *
js_CloneFunctionObject(JSContext *cx, JSObject *funobj, JSObject *parent);
extern JSBool
js_LinkFunctionObject(JSContext *cx, JSFunction *fun, JSObject *object);
extern JSFunction *
js_DefineFunction(JSContext *cx, JSObject *obj, JSAtom *atom, JSNative call,
uintN nargs, uintN flags);
extern JSFunction *
js_ValueToFunction(JSContext *cx, jsval *vp, JSBool constructing);
extern void
js_ReportIsNotFunction(JSContext *cx, jsval *vp, JSBool constructing);
extern JSObject *
js_GetCallObject(JSContext *cx, JSStackFrame *fp, JSObject *parent,
JSObject *withobj);
extern JSBool
js_PutCallObject(JSContext *cx, JSStackFrame *fp);
extern JSBool
js_GetCallVariable(JSContext *cx, JSObject *obj, jsval id, jsval *vp);
extern JSBool
js_SetCallVariable(JSContext *cx, JSObject *obj, jsval id, jsval *vp);
extern JSObject *
js_GetArgsObject(JSContext *cx, JSStackFrame *fp);
extern JSBool
js_PutArgsObject(JSContext *cx, JSStackFrame *fp);
extern JSBool
js_XDRFunction(JSXDRState *xdr, JSObject **objp);
JS_END_EXTERN_C
#endif /* jsfun_h___ */

981
mozilla/js/src/jsgc.c Normal file
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@@ -0,0 +1,981 @@
/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
*
* The contents of this file are subject to the Netscape Public
* License Version 1.1 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.mozilla.org/NPL/
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express oqr
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* The Original Code is Mozilla Communicator client code, released
* March 31, 1998.
*
* The Initial Developer of the Original Code is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All
* Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the
* terms of the GNU Public License (the "GPL"), in which case the
* provisions of the GPL are applicable instead of those above.
* If you wish to allow use of your version of this file only
* under the terms of the GPL and not to allow others to use your
* version of this file under the NPL, indicate your decision by
* deleting the provisions above and replace them with the notice
* and other provisions required by the GPL. If you do not delete
* the provisions above, a recipient may use your version of this
* file under either the NPL or the GPL.
*/
/*
* JS Mark-and-Sweep Garbage Collector.
*
* This GC allocates only fixed-sized things big enough to contain two words
* (pointers) on any host architecture. It allocates from an arena pool (see
* jsarena.h). It uses a parallel arena-pool array of flag bytes to hold the
* mark bit, finalizer type index, etc.
*
* XXX swizzle page to freelist for better locality of reference
*/
#include "jsstddef.h"
#include <stdlib.h> /* for free, called by JS_ARENA_DESTROY */
#include <string.h> /* for memset, called by jsarena.h macros if DEBUG */
#include "jstypes.h"
#include "jsarena.h" /* Added by JSIFY */
#include "jsutil.h" /* Added by JSIFY */
#include "jshash.h" /* Added by JSIFY */
#include "jsapi.h"
#include "jsatom.h"
#include "jscntxt.h"
#include "jsconfig.h"
#include "jsfun.h"
#include "jsgc.h"
#include "jsinterp.h"
#include "jslock.h"
#include "jsnum.h"
#include "jsobj.h"
#include "jsscope.h"
#include "jsscript.h"
#include "jsstr.h"
/*
* Arena sizes, the first must be a multiple of the second so the two arena
* pools can be maintained (in particular, arenas may be destroyed from the
* middle of each pool) in parallel.
*/
#define GC_ARENA_SIZE 8192 /* 1024 (512 on Alpha) objects */
#define GC_FLAGS_SIZE (GC_ARENA_SIZE / sizeof(JSGCThing))
#define GC_ROOTS_SIZE 256 /* SWAG, small enough to amortize */
static JSHashNumber gc_hash_root(const void *key);
struct JSGCThing {
JSGCThing *next;
uint8 *flagp;
};
typedef void (*GCFinalizeOp)(JSContext *cx, JSGCThing *thing);
static GCFinalizeOp gc_finalizers[GCX_NTYPES];
#ifdef JS_GCMETER
#define METER(x) x
#else
#define METER(x) /* nothing */
#endif
JSBool
js_InitGC(JSRuntime *rt, uint32 maxbytes)
{
if (!gc_finalizers[GCX_OBJECT]) {
gc_finalizers[GCX_OBJECT] = (GCFinalizeOp)js_FinalizeObject;
gc_finalizers[GCX_STRING] = (GCFinalizeOp)js_FinalizeString;
gc_finalizers[GCX_DOUBLE] = (GCFinalizeOp)js_FinalizeDouble;
}
JS_InitArenaPool(&rt->gcArenaPool, "gc-arena", GC_ARENA_SIZE,
sizeof(JSGCThing));
JS_InitArenaPool(&rt->gcFlagsPool, "gc-flags", GC_FLAGS_SIZE,
sizeof(uint8));
rt->gcRootsHash = JS_NewHashTable(GC_ROOTS_SIZE, gc_hash_root,
JS_CompareValues, JS_CompareValues,
NULL, NULL);
if (!rt->gcRootsHash)
return JS_FALSE;
rt->gcMaxBytes = maxbytes;
return JS_TRUE;
}
#ifdef JS_GCMETER
void
js_DumpGCStats(JSRuntime *rt, FILE *fp)
{
fprintf(fp, "\nGC allocation statistics:\n");
fprintf(fp, " bytes currently allocated: %lu\n", rt->gcBytes);
fprintf(fp, " alloc attempts: %lu\n", rt->gcStats.alloc);
fprintf(fp, " GC freelist length: %lu\n", rt->gcStats.freelen);
fprintf(fp, " recycles through GC freelist: %lu\n", rt->gcStats.recycle);
fprintf(fp, "alloc retries after running GC: %lu\n", rt->gcStats.retry);
fprintf(fp, " allocation failures: %lu\n", rt->gcStats.fail);
fprintf(fp, " valid lock calls: %lu\n", rt->gcStats.lock);
fprintf(fp, " valid unlock calls: %lu\n", rt->gcStats.unlock);
fprintf(fp, " locks that hit stuck counts: %lu\n", rt->gcStats.stuck);
fprintf(fp, " unlocks that saw stuck counts: %lu\n", rt->gcStats.unstuck);
fprintf(fp, " mark recursion depth: %lu\n", rt->gcStats.depth);
fprintf(fp, " maximum mark recursion depth: %lu\n", rt->gcStats.maxdepth);
fprintf(fp, " maximum GC nesting level: %lu\n", rt->gcStats.maxlevel);
fprintf(fp, " potentially useful GC calls: %lu\n", rt->gcStats.poke);
fprintf(fp, " useless GC calls: %lu\n", rt->gcStats.nopoke);
fprintf(fp, " thing arena corruption: %lu\n", rt->gcStats.badarena);
fprintf(fp, " flags arena corruption: %lu\n", rt->gcStats.badflag);
fprintf(fp, " thing arenas freed so far: %lu\n", rt->gcStats.afree);
fprintf(fp, " flags arenas freed so far: %lu\n", rt->gcStats.fafree);
#ifdef JS_ARENAMETER
JS_DumpArenaStats(fp);
#endif
}
#endif
void
js_FinishGC(JSRuntime *rt)
{
#ifdef JS_ARENAMETER
JS_DumpArenaStats(stdout);
#endif
#ifdef JS_GCMETER
js_DumpGCStats(rt, stdout);
#endif
JS_FinishArenaPool(&rt->gcArenaPool);
JS_FinishArenaPool(&rt->gcFlagsPool);
JS_ArenaFinish();
JS_HashTableDestroy(rt->gcRootsHash);
rt->gcRootsHash = NULL;
rt->gcFreeList = NULL;
}
JSBool
js_AddRoot(JSContext *cx, void *rp, const char *name)
{
JSRuntime *rt;
JSBool ok;
rt = cx->runtime;
JS_LOCK_GC_VOID(rt,
ok = (JS_HashTableAdd(rt->gcRootsHash, rp, (void *)name) != NULL));
if (!ok)
JS_ReportOutOfMemory(cx);
return ok;
}
JSBool
js_RemoveRoot(JSRuntime *rt, void *rp)
{
JS_LOCK_GC_VOID(rt, JS_HashTableRemove(rt->gcRootsHash, rp));
return JS_TRUE;
}
void *
js_AllocGCThing(JSContext *cx, uintN flags)
{
JSRuntime *rt;
JSGCThing *thing;
uint8 *flagp = NULL;
#ifdef TOO_MUCH_GC
JSBool tried_gc = JS_TRUE;
js_GC(cx);
#else
JSBool tried_gc = JS_FALSE;
#endif
#ifdef NES40
/* Fix for GC bug - previous allocation of a new atom has
not yet found a home, so a subsequent call to GC here will
flush that atom. This 'hack' prevents that from happening
by requiring that the heap grow rather than running a GC.
The concern is that enough GC's will not occur then, since
we're counting on back-branches and force_GC's from the
server.
*/
tried_gc = JS_TRUE;
#endif /* NES40 */
rt = cx->runtime;
JS_LOCK_GC(rt);
METER(rt->gcStats.alloc++);
retry:
thing = rt->gcFreeList;
if (thing) {
rt->gcFreeList = thing->next;
flagp = thing->flagp;
METER(rt->gcStats.freelen--);
METER(rt->gcStats.recycle++);
} else {
if (rt->gcBytes < rt->gcMaxBytes &&
(tried_gc || rt->gcMallocBytes < rt->gcMaxBytes))
{
JS_ARENA_ALLOCATE(thing, &rt->gcArenaPool, sizeof(JSGCThing));
JS_ARENA_ALLOCATE(flagp, &rt->gcFlagsPool, sizeof(uint8));
}
if (!thing || !flagp) {
if (thing)
JS_ARENA_RELEASE(&rt->gcArenaPool, thing);
if (!tried_gc) {
JS_UNLOCK_GC(rt);
js_GC(cx);
tried_gc = JS_TRUE;
JS_LOCK_GC(rt);
METER(rt->gcStats.retry++);
goto retry;
}
METER(rt->gcStats.fail++);
JS_UNLOCK_GC(rt);
JS_ReportOutOfMemory(cx);
return NULL;
}
}
*flagp = (uint8)flags;
rt->gcBytes += sizeof(JSGCThing) + sizeof(uint8);
cx->newborn[flags & GCF_TYPEMASK] = thing;
/*
* Clear thing before unlocking in case a GC run is about to scan it,
* finding it via cx->newborn[].
*/
thing->next = NULL;
thing->flagp = NULL;
JS_UNLOCK_GC(rt);
return thing;
}
static uint8 *
gc_find_flags(JSRuntime *rt, void *thing)
{
jsuword index, offset, length;
JSArena *a, *fa;
index = 0;
for (a = rt->gcArenaPool.first.next; a; a = a->next) {
offset = JS_UPTRDIFF(thing, a->base);
length = a->avail - a->base;
if (offset < length) {
index += offset / sizeof(JSGCThing);
for (fa = rt->gcFlagsPool.first.next; fa; fa = fa->next) {
offset = fa->avail - fa->base;
if (index < offset)
return (uint8 *)fa->base + index;
index -= offset;
}
return NULL;
}
index += length / sizeof(JSGCThing);
}
return NULL;
}
JSBool
js_LockGCThing(JSContext *cx, void *thing)
{
uint8 *flagp, flags;
if (!thing)
return JS_TRUE;
flagp = gc_find_flags(cx->runtime, thing);
if (!flagp)
return JS_FALSE;
flags = *flagp;
if ((flags & GCF_LOCKMASK) != GCF_LOCKMASK) {
*flagp = (uint8)(flags + GCF_LOCK);
} else {
METER(cx->runtime->gcStats.stuck++);
}
METER(cx->runtime->gcStats.lock++);
return JS_TRUE;
}
JSBool
js_UnlockGCThing(JSContext *cx, void *thing)
{
uint8 *flagp, flags;
if (!thing)
return JS_TRUE;
flagp = gc_find_flags(cx->runtime, thing);
if (!flagp)
return JS_FALSE;
flags = *flagp;
if ((flags & GCF_LOCKMASK) != GCF_LOCKMASK) {
*flagp = (uint8)(flags - GCF_LOCK);
} else {
METER(cx->runtime->gcStats.unstuck++);
}
METER(cx->runtime->gcStats.unlock++);
return JS_TRUE;
}
#ifdef GC_MARK_DEBUG
#include <stdio.h>
#include <stdlib.h>
#include "jsprf.h"
JS_FRIEND_DATA(FILE *) js_DumpGCHeap;
JS_FRIEND_DATA(void *) js_LiveThingToFind;
typedef struct GCMarkNode GCMarkNode;
struct GCMarkNode {
void *thing;
char *name;
GCMarkNode *next;
GCMarkNode *prev;
};
static void
gc_dump_thing(JSGCThing *thing, uint8 flags, GCMarkNode *prev, FILE *fp)
{
GCMarkNode *next = NULL;
char *path = NULL;
JSObject *obj;
JSClass *clasp;
while (prev) {
next = prev;
prev = prev->prev;
}
while (next) {
path = JS_sprintf_append(path, "%s.", next->name);
next = next->next;
}
if (!path)
return;
fprintf(fp, "%08lx ", (long)thing);
switch (flags & GCF_TYPEMASK) {
case GCX_OBJECT:
obj = (JSObject *)thing;
clasp = JSVAL_TO_PRIVATE(obj->slots[JSSLOT_CLASS]);
fprintf(fp, "object %s", clasp->name);
break;
case GCX_STRING:
fprintf(fp, "string %s", JS_GetStringBytes((JSString *)thing));
break;
case GCX_DOUBLE:
fprintf(fp, "double %g", *(jsdouble *)thing);
break;
case GCX_DECIMAL:
break;
}
fprintf(fp, " via %s\n", path);
free(path);
}
static void
gc_mark_node(JSRuntime *rt, void *thing, GCMarkNode *prev);
#define GC_MARK(_rt, _thing, _name, _prev) \
JS_BEGIN_MACRO \
GCMarkNode _node; \
_node.thing = _thing; \
_node.name = _name; \
_node.next = NULL; \
_node.prev = _prev; \
if (_prev) ((GCMarkNode *)(_prev))->next = &_node; \
gc_mark_node(_rt, _thing, &_node); \
JS_END_MACRO
static void
gc_mark(JSRuntime *rt, void *thing)
{
GC_MARK(rt, thing, "atom", NULL);
}
#define GC_MARK_ATOM(rt, atom, prev) gc_mark_atom(rt, atom, prev)
#define GC_MARK_SCRIPT(rt, script, prev) gc_mark_script(rt, script, prev)
#else /* !GC_MARK_DEBUG */
#define GC_MARK(rt, thing, name, prev) gc_mark(rt, thing)
#define GC_MARK_ATOM(rt, atom, prev) gc_mark_atom(rt, atom)
#define GC_MARK_SCRIPT(rt, script, prev) gc_mark_script(rt, script)
static void
gc_mark(JSRuntime *rt, void *thing);
#endif /* !GC_MARK_DEBUG */
static void
gc_mark_atom(JSRuntime *rt, JSAtom *atom
#ifdef GC_MARK_DEBUG
, GCMarkNode *prev
#endif
)
{
jsval key;
if (!atom || atom->flags & ATOM_MARK)
return;
atom->flags |= ATOM_MARK;
key = ATOM_KEY(atom);
if (JSVAL_IS_GCTHING(key)) {
#ifdef GC_MARK_DEBUG
char name[32];
if (JSVAL_IS_STRING(key)) {
JS_snprintf(name, sizeof name, "'%s'",
JS_GetStringBytes(JSVAL_TO_STRING(key)));
} else {
JS_snprintf(name, sizeof name, "<%x>", key);
}
#endif
GC_MARK(rt, JSVAL_TO_GCTHING(key), name, prev);
}
}
static void
gc_mark_script(JSRuntime *rt, JSScript *script
#ifdef GC_MARK_DEBUG
, GCMarkNode *prev
#endif
)
{
JSAtomMap *map;
uintN i, length;
JSAtom **vector;
map = &script->atomMap;
length = map->length;
vector = map->vector;
for (i = 0; i < length; i++)
GC_MARK_ATOM(rt, vector[i], prev);
}
static void
#ifdef GC_MARK_DEBUG
gc_mark_node(JSRuntime *rt, void *thing, GCMarkNode *prev)
#else
gc_mark(JSRuntime *rt, void *thing)
#endif
{
uint8 flags, *flagp;
JSObject *obj;
jsval v, *vp, *end;
JSScope *scope;
JSClass *clasp;
JSScript *script;
JSFunction *fun;
JSScopeProperty *sprop;
JSSymbol *sym;
if (!thing)
return;
flagp = gc_find_flags(rt, thing);
if (!flagp)
return;
/* Check for something on the GC freelist to handle recycled stack. */
flags = *flagp;
if (flags == GCF_FINAL)
return;
#ifdef GC_MARK_DEBUG
if (js_LiveThingToFind == thing)
gc_dump_thing(thing, flags, prev, stderr);
#endif
if (flags & GCF_MARK)
return;
*flagp |= GCF_MARK;
METER(if (++rt->gcStats.depth > rt->gcStats.maxdepth)
rt->gcStats.maxdepth = rt->gcStats.depth);
#ifdef GC_MARK_DEBUG
if (js_DumpGCHeap)
gc_dump_thing(thing, flags, prev, js_DumpGCHeap);
#endif
if ((flags & GCF_TYPEMASK) == GCX_OBJECT) {
obj = thing;
vp = obj->slots;
if (vp) {
scope = OBJ_IS_NATIVE(obj) ? OBJ_SCOPE(obj) : NULL;
if (scope) {
clasp = JSVAL_TO_PRIVATE(obj->slots[JSSLOT_CLASS]);
if (clasp == &js_ScriptClass) {
v = vp[JSSLOT_PRIVATE];
if (!JSVAL_IS_VOID(v)) {
script = JSVAL_TO_PRIVATE(v);
if (script)
GC_MARK_SCRIPT(rt, script, prev);
}
}
if (clasp == &js_FunctionClass) {
v = vp[JSSLOT_PRIVATE];
if (!JSVAL_IS_VOID(v)) {
fun = JSVAL_TO_PRIVATE(v);
if (fun) {
if (fun->atom)
GC_MARK_ATOM(rt, fun->atom, prev);
if (fun->script)
GC_MARK_SCRIPT(rt, fun->script, prev);
}
}
}
for (sprop = scope->props; sprop; sprop = sprop->next) {
for (sym = sprop->symbols; sym; sym = sym->next) {
if (JSVAL_IS_INT(sym_id(sym)))
continue;
GC_MARK_ATOM(rt, sym_atom(sym), prev);
}
#if JS_HAS_GETTER_SETTER
if (sprop->attrs & (JSPROP_GETTER | JSPROP_SETTER)) {
#ifdef GC_MARK_DEBUG
char buf[64];
JSAtom *atom = sym_atom(sprop->symbols);
const char *id = (atom && ATOM_IS_STRING(atom))
? JS_GetStringBytes(ATOM_TO_STRING(atom))
: "unknown";
#endif
if (sprop->attrs & JSPROP_GETTER) {
#ifdef GC_MARK_DEBUG
JS_snprintf(buf, sizeof buf, "%s %s",
id, js_getter_str);
#endif
GC_MARK(rt,
JSVAL_TO_GCTHING((jsval)
SPROP_GETTER_SCOPE(sprop, scope)),
buf,
prev);
}
if (sprop->attrs & JSPROP_SETTER) {
#ifdef GC_MARK_DEBUG
JS_snprintf(buf, sizeof buf, "%s %s",
id, js_setter_str);
#endif
GC_MARK(rt,
JSVAL_TO_GCTHING((jsval)
SPROP_SETTER_SCOPE(sprop, scope)),
buf,
prev);
}
}
#endif /* JS_HAS_GETTER_SETTER */
}
}
if (!scope || scope->object == obj)
end = vp + obj->map->freeslot;
else
end = vp + JS_INITIAL_NSLOTS;
for (; vp < end; vp++) {
v = *vp;
if (JSVAL_IS_GCTHING(v)) {
#ifdef GC_MARK_DEBUG
char name[32];
if (scope) {
uint32 slot;
jsval nval;
slot = vp - obj->slots;
for (sprop = scope->props; ; sprop = sprop->next) {
if (!sprop) {
switch (slot) {
case JSSLOT_PROTO:
strcpy(name, "__proto__");
break;
case JSSLOT_PARENT:
strcpy(name, "__parent__");
break;
case JSSLOT_PRIVATE:
strcpy(name, "__private__");
break;
default:
JS_snprintf(name, sizeof name,
"**UNKNOWN SLOT %ld**",
(long)slot);
break;
}
break;
}
if (sprop->slot == slot) {
nval = sprop->symbols
? js_IdToValue(sym_id(sprop->symbols))
: sprop->id;
if (JSVAL_IS_INT(nval)) {
JS_snprintf(name, sizeof name, "%ld",
(long)JSVAL_TO_INT(nval));
} else if (JSVAL_IS_STRING(nval)) {
JS_snprintf(name, sizeof name, "%s",
JS_GetStringBytes(JSVAL_TO_STRING(nval)));
} else {
strcpy(name, "**FINALIZED ATOM KEY**");
}
break;
}
}
}
#endif
GC_MARK(rt, JSVAL_TO_GCTHING(v), name, prev);
}
}
}
}
METER(rt->gcStats.depth--);
}
static JSHashNumber
gc_hash_root(const void *key)
{
JSHashNumber num = (JSHashNumber) key; /* help lame MSVC1.5 on Win16 */
return num >> 2;
}
JS_STATIC_DLL_CALLBACK(intN)
gc_root_marker(JSHashEntry *he, intN i, void *arg)
{
jsval *rp = (jsval *)he->key;
jsval v = *rp;
/* Ignore null object and scalar values. */
if (!JSVAL_IS_NULL(v) && JSVAL_IS_GCTHING(v)) {
JSRuntime *rt = (JSRuntime *)arg;
#ifdef DEBUG
JSArena *a;
JSBool root_points_to_gcArenaPool = JS_FALSE;
void *thing = JSVAL_TO_GCTHING(v);
for (a = rt->gcArenaPool.first.next; a; a = a->next) {
if (JS_UPTRDIFF(thing, a->base) < a->avail - a->base) {
root_points_to_gcArenaPool = JS_TRUE;
break;
}
}
JS_ASSERT(root_points_to_gcArenaPool);
#endif
GC_MARK(rt, JSVAL_TO_GCTHING(v), he->value ? he->value : "root", NULL);
}
return HT_ENUMERATE_NEXT;
}
JS_FRIEND_API(void)
js_ForceGC(JSContext *cx)
{
cx->newborn[GCX_OBJECT] = NULL;
cx->newborn[GCX_STRING] = NULL;
cx->newborn[GCX_DOUBLE] = NULL;
cx->runtime->gcPoke = JS_TRUE;
js_GC(cx);
JS_ArenaFinish();
}
void
js_GC(JSContext *cx)
{
JSRuntime *rt;
JSContext *iter, *acx;
JSArena *a, *ma, *fa, **ap, **fap;
jsval v, *vp, *sp;
jsuword begin, end;
JSStackFrame *fp, *chain;
void *mark;
uint8 flags, *flagp;
JSGCThing *thing, *final, **flp, **oflp;
GCFinalizeOp finalizer;
JSBool a_all_clear, f_all_clear;
rt = cx->runtime;
if (rt->gcDisabled)
return;
#ifdef JS_THREADSAFE
/* Avoid deadlock. */
JS_ASSERT(!JS_IS_RUNTIME_LOCKED(rt));
#endif
/* Let the API user decide to defer a GC if it wants to. */
if (rt->gcCallback && !rt->gcCallback(cx, JSGC_BEGIN))
return;
/* Lock out other GC allocator and collector invocations. */
JS_LOCK_GC(rt);
/* Do nothing if no assignment has executed since the last GC. */
if (!rt->gcPoke) {
METER(rt->gcStats.nopoke++);
JS_UNLOCK_GC(rt);
return;
}
rt->gcPoke = JS_FALSE;
METER(rt->gcStats.poke++);
#ifdef JS_THREADSAFE
/* Bump gcLevel and return rather than nest on this context. */
if (cx->gcActive) {
rt->gcLevel++;
METER(if (rt->gcLevel > rt->gcStats.maxlevel)
rt->gcStats.maxlevel = rt->gcLevel);
if (rt->gcLevel > 1) {
JS_UNLOCK_GC(rt);
return;
}
}
/* If we're in a request, indicate, temporarily, that we're inactive. */
if (cx->requestDepth) {
rt->requestCount--;
JS_NOTIFY_REQUEST_DONE(rt);
}
/* If another thread is already in GC, don't attempt GC; wait instead. */
if (rt->gcLevel > 0) {
while (rt->gcLevel > 0)
JS_AWAIT_GC_DONE(rt);
if (cx->requestDepth)
rt->requestCount++;
JS_UNLOCK_GC(rt);
return;
}
/* No other thread is in GC, so indicate that we're now in GC. */
rt->gcLevel = 1;
/* Also indicate that GC is active on this context. */
cx->gcActive = JS_TRUE;
/* Wait for all other requests to finish. */
while (rt->requestCount > 0)
JS_AWAIT_REQUEST_DONE(rt);
#else /* !JS_THREADSAFE */
/* Bump gcLevel and return rather than nest; the outer gc will restart. */
rt->gcLevel++;
METER(if (rt->gcLevel > rt->gcStats.maxlevel)
rt->gcStats.maxlevel = rt->gcLevel);
if (rt->gcLevel > 1)
return;
#endif /* !JS_THREADSAFE */
/* Reset malloc counter */
rt->gcMallocBytes = 0;
/* Drop atoms held by the property cache, and clear property weak links. */
js_FlushPropertyCache(cx);
restart:
rt->gcNumber++;
/* Mark phase. */
JS_HashTableEnumerateEntries(rt->gcRootsHash, gc_root_marker, rt);
js_MarkAtomState(&rt->atomState, gc_mark);
iter = NULL;
while ((acx = js_ContextIterator(rt, &iter)) != NULL) {
/*
* Iterate frame chain and dormant chains. Temporarily tack current
* frame onto the head of the dormant list to ease iteration.
*
* (NOTE: see comment on this whole 'dormant' thing in js_Execute)
*/
chain = acx->fp;
if (chain) {
JS_ASSERT(!chain->dormantNext);
chain->dormantNext = acx->dormantFrameChain;
} else {
chain = acx->dormantFrameChain;
}
for (fp=chain; fp; fp = chain = chain->dormantNext) {
sp = fp->sp;
if (sp) {
for (a = acx->stackPool.first.next; a; a = a->next) {
begin = a->base;
end = a->avail;
if (JS_UPTRDIFF(sp, begin) < JS_UPTRDIFF(end, begin))
end = (jsuword)sp;
for (vp = (jsval *)begin; vp < (jsval *)end; vp++) {
v = *vp;
if (JSVAL_IS_GCTHING(v))
GC_MARK(rt, JSVAL_TO_GCTHING(v), "stack", NULL);
}
if (end == (jsuword)sp)
break;
}
}
do {
GC_MARK(rt, fp->scopeChain, "scope chain", NULL);
GC_MARK(rt, fp->thisp, "this", NULL);
if (JSVAL_IS_GCTHING(fp->rval))
GC_MARK(rt, JSVAL_TO_GCTHING(fp->rval), "rval", NULL);
if (fp->callobj)
GC_MARK(rt, fp->callobj, "call object", NULL);
if (fp->argsobj)
GC_MARK(rt, fp->argsobj, "arguments object", NULL);
if (fp->script)
GC_MARK_SCRIPT(rt, fp->script, NULL);
if (fp->sharpArray)
GC_MARK(rt, fp->sharpArray, "sharp array", NULL);
} while ((fp = fp->down) != NULL);
}
/* cleanup temporary link */
if (acx->fp)
acx->fp->dormantNext = NULL;
GC_MARK(rt, acx->globalObject, "global object", NULL);
GC_MARK(rt, acx->newborn[GCX_OBJECT], "newborn object", NULL);
GC_MARK(rt, acx->newborn[GCX_STRING], "newborn string", NULL);
GC_MARK(rt, acx->newborn[GCX_DOUBLE], "newborn double", NULL);
#if JS_HAS_EXCEPTIONS
if (acx->throwing && JSVAL_IS_GCTHING(acx->exception))
GC_MARK(rt, JSVAL_TO_GCTHING(acx->exception), "exception", NULL);
#endif
}
/* Sweep phase. Mark in tempPool for release at label out:. */
ma = cx->tempPool.current;
mark = JS_ARENA_MARK(&cx->tempPool);
js_SweepAtomState(&rt->atomState);
fa = rt->gcFlagsPool.first.next;
flagp = (uint8 *)fa->base;
for (a = rt->gcArenaPool.first.next; a; a = a->next) {
for (thing = (JSGCThing *)a->base; thing < (JSGCThing *)a->avail;
thing++) {
if (flagp >= (uint8 *)fa->avail) {
fa = fa->next;
JS_ASSERT(fa);
if (!fa) {
METER(rt->gcStats.badflag++);
goto out;
}
flagp = (uint8 *)fa->base;
}
flags = *flagp;
if (flags & GCF_MARK) {
*flagp &= ~GCF_MARK;
} else if (!(flags & (GCF_LOCKMASK | GCF_FINAL))) {
JS_ARENA_ALLOCATE(final, &cx->tempPool, sizeof(JSGCThing));
if (!final)
goto out;
final->next = thing;
final->flagp = flagp;
JS_ASSERT(rt->gcBytes >= sizeof(JSGCThing) + sizeof(uint8));
rt->gcBytes -= sizeof(JSGCThing) + sizeof(uint8);
}
flagp++;
}
}
/* Finalize phase. Don't hold the GC lock while running finalizers! */
JS_UNLOCK_GC(rt);
for (final = mark; ; final++) {
if ((jsuword)final >= ma->avail) {
ma = ma->next;
if (!ma)
break;
final = (JSGCThing *)ma->base;
}
thing = final->next;
flagp = final->flagp;
flags = *flagp;
finalizer = gc_finalizers[flags & GCF_TYPEMASK];
if (finalizer) {
*flagp |= GCF_FINAL;
finalizer(cx, thing);
}
/*
* Set flags to GCF_FINAL, signifying that thing is free, but don't
* thread thing onto rt->gcFreeList. We need the GC lock to rebuild
* the freelist below while also looking for free-able arenas.
*/
*flagp = GCF_FINAL;
}
JS_LOCK_GC(rt);
/* Free unused arenas and rebuild the freelist. */
ap = &rt->gcArenaPool.first.next;
a = *ap;
if (!a)
goto out;
thing = (JSGCThing *)a->base;
a_all_clear = f_all_clear = JS_TRUE;
flp = oflp = &rt->gcFreeList;
*flp = NULL;
METER(rt->gcStats.freelen = 0);
fap = &rt->gcFlagsPool.first.next;
while ((fa = *fap) != NULL) {
/* XXX optimize by unrolling to use word loads */
for (flagp = (uint8 *)fa->base; ; flagp++) {
JS_ASSERT(a);
if (!a) {
METER(rt->gcStats.badarena++);
goto out;
}
if (thing >= (JSGCThing *)a->avail) {
if (a_all_clear) {
JS_ARENA_DESTROY(&rt->gcArenaPool, a, ap);
flp = oflp;
METER(rt->gcStats.afree++);
} else {
ap = &a->next;
a_all_clear = JS_TRUE;
oflp = flp;
}
a = *ap;
if (!a)
break;
thing = (JSGCThing *)a->base;
}
if (flagp >= (uint8 *)fa->avail)
break;
if (*flagp != GCF_FINAL) {
a_all_clear = f_all_clear = JS_FALSE;
} else {
thing->flagp = flagp;
*flp = thing;
flp = &thing->next;
METER(rt->gcStats.freelen++);
}
thing++;
}
if (f_all_clear) {
JS_ARENA_DESTROY(&rt->gcFlagsPool, fa, fap);
METER(rt->gcStats.fafree++);
} else {
fap = &fa->next;
f_all_clear = JS_TRUE;
}
}
/* Terminate the new freelist. */
*flp = NULL;
out:
JS_ARENA_RELEASE(&cx->tempPool, mark);
if (rt->gcLevel > 1) {
rt->gcLevel = 1;
goto restart;
}
rt->gcLevel = 0;
rt->gcLastBytes = rt->gcBytes;
#ifdef JS_THREADSAFE
/* If we were invoked during a request, undo the temporary decrement. */
if (cx->requestDepth)
rt->requestCount++;
cx->gcActive = JS_FALSE;
JS_NOTIFY_GC_DONE(rt);
JS_UNLOCK_GC(rt);
#endif
if (rt->gcCallback)
(void) rt->gcCallback(cx, JSGC_END);
}

126
mozilla/js/src/jsgc.h Normal file
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@@ -0,0 +1,126 @@
/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
*
* The contents of this file are subject to the Netscape Public
* License Version 1.1 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.mozilla.org/NPL/
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express oqr
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* The Original Code is Mozilla Communicator client code, released
* March 31, 1998.
*
* The Initial Developer of the Original Code is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All
* Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the
* terms of the GNU Public License (the "GPL"), in which case the
* provisions of the GPL are applicable instead of those above.
* If you wish to allow use of your version of this file only
* under the terms of the GPL and not to allow others to use your
* version of this file under the NPL, indicate your decision by
* deleting the provisions above and replace them with the notice
* and other provisions required by the GPL. If you do not delete
* the provisions above, a recipient may use your version of this
* file under either the NPL or the GPL.
*/
#ifndef jsgc_h___
#define jsgc_h___
/*
* JS Garbage Collector.
*/
#include "jspubtd.h"
JS_BEGIN_EXTERN_C
/* GC thing type indexes. */
#define GCX_OBJECT 0 /* JSObject */
#define GCX_STRING 1 /* JSString */
#define GCX_DOUBLE 2 /* jsdouble */
#define GCX_DECIMAL 3 /* JSDecimal */
#define GCX_NTYPES 4
/* GC flag definitions (type index goes in low bits). */
#define GCF_TYPEMASK JS_BITMASK(2) /* use low bits for type */
#define GCF_MARK JS_BIT(2) /* mark bit */
#define GCF_FINAL JS_BIT(3) /* in finalization bit */
#define GCF_LOCKBIT 4 /* lock bit shift and mask */
#define GCF_LOCKMASK (JS_BITMASK(4) << GCF_LOCKBIT)
#define GCF_LOCK JS_BIT(GCF_LOCKBIT) /* lock request bit in API */
#if 1
/*
* Since we're forcing a GC from JS_GC anyway, don't bother wasting cycles
* loading oldval. XXX remove implied force, poke in addroot/removeroot, &c
*/
#define GC_POKE(cx, oldval) ((cx)->runtime->gcPoke = JS_TRUE)
#else
#define GC_POKE(cx, oldval) ((cx)->runtime->gcPoke = JSVAL_IS_GCTHING(oldval))
#endif
extern JSBool
js_InitGC(JSRuntime *rt, uint32 maxbytes);
extern void
js_FinishGC(JSRuntime *rt);
extern JSBool
js_AddRoot(JSContext *cx, void *rp, const char *name);
extern JSBool
js_RemoveRoot(JSRuntime *rt, void *rp);
extern void *
js_AllocGCThing(JSContext *cx, uintN flags);
extern JSBool
js_LockGCThing(JSContext *cx, void *thing);
extern JSBool
js_UnlockGCThing(JSContext *cx, void *thing);
extern JS_FRIEND_API(void)
js_ForceGC(JSContext *cx);
extern void
js_GC(JSContext *cx);
#ifdef JS_GCMETER
typedef struct JSGCStats {
uint32 alloc; /* number of allocation attempts */
uint32 freelen; /* gcFreeList length */
uint32 recycle; /* number of things recycled through gcFreeList */
uint32 retry; /* allocation attempt retries after running the GC */
uint32 fail; /* allocation failures */
uint32 lock; /* valid lock calls */
uint32 unlock; /* valid unlock calls */
uint32 stuck; /* stuck reference counts seen by lock calls */
uint32 unstuck; /* unlock calls that saw a stuck lock count */
uint32 depth; /* mark recursion depth */
uint32 maxdepth; /* maximum mark recursion depth */
uint32 maxlevel; /* maximum GC nesting (indirect recursion) level */
uint32 poke; /* number of potentially useful GC calls */
uint32 nopoke; /* useless GC calls where js_PokeGC was not set */
uint32 badarena; /* thing arena corruption */
uint32 badflag; /* flags arena corruption */
uint32 afree; /* thing arenas freed so far */
uint32 fafree; /* flags arenas freed so far */
} JSGCStats;
extern void
js_DumpGCStats(JSRuntime *rt, FILE *fp);
#endif /* JS_GCMETER */
JS_END_EXTERN_C
#endif /* jsgc_h___ */

466
mozilla/js/src/jshash.c Normal file
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@@ -0,0 +1,466 @@
/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
*
* The contents of this file are subject to the Netscape Public
* License Version 1.1 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.mozilla.org/NPL/
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express oqr
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* The Original Code is Mozilla Communicator client code, released
* March 31, 1998.
*
* The Initial Developer of the Original Code is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All
* Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the
* terms of the GNU Public License (the "GPL"), in which case the
* provisions of the GPL are applicable instead of those above.
* If you wish to allow use of your version of this file only
* under the terms of the GPL and not to allow others to use your
* version of this file under the NPL, indicate your decision by
* deleting the provisions above and replace them with the notice
* and other provisions required by the GPL. If you do not delete
* the provisions above, a recipient may use your version of this
* file under either the NPL or the GPL.
*/
/*
* PR hash table package.
*/
#include <stdlib.h>
#include <string.h>
#include "jstypes.h"
#include "jsbit.h"
#include "jsutil.h" /* Added by JSIFY */
#include "jshash.h" /* Added by JSIFY */
/* Compute the number of buckets in ht */
#define NBUCKETS(ht) JS_BIT(JS_HASH_BITS - (ht)->shift)
/* The smallest table has 16 buckets */
#define MINBUCKETSLOG2 4
#define MINBUCKETS JS_BIT(MINBUCKETSLOG2)
/* Compute the maximum entries given n buckets that we will tolerate, ~90% */
#define OVERLOADED(n) ((n) - ((n) >> 3))
/* Compute the number of entries below which we shrink the table by half */
#define UNDERLOADED(n) (((n) > MINBUCKETS) ? ((n) >> 2) : 0)
/*
** Stubs for default hash allocator ops.
*/
static void *
DefaultAllocTable(void *pool, size_t size)
{
return malloc(size);
}
static void
DefaultFreeTable(void *pool, void *item)
{
free(item);
}
static JSHashEntry *
DefaultAllocEntry(void *pool, const void *key)
{
return malloc(sizeof(JSHashEntry));
}
static void
DefaultFreeEntry(void *pool, JSHashEntry *he, uintN flag)
{
if (flag == HT_FREE_ENTRY)
free(he);
}
static JSHashAllocOps defaultHashAllocOps = {
DefaultAllocTable, DefaultFreeTable,
DefaultAllocEntry, DefaultFreeEntry
};
JS_PUBLIC_API(JSHashTable *)
JS_NewHashTable(uint32 n, JSHashFunction keyHash,
JSHashComparator keyCompare, JSHashComparator valueCompare,
JSHashAllocOps *allocOps, void *allocPriv)
{
JSHashTable *ht;
size_t nb;
if (n <= MINBUCKETS) {
n = MINBUCKETSLOG2;
} else {
n = JS_CeilingLog2(n);
if ((int32)n < 0)
return NULL;
}
if (!allocOps) allocOps = &defaultHashAllocOps;
ht = (*allocOps->allocTable)(allocPriv, sizeof *ht);
if (!ht)
return NULL;
memset(ht, 0, sizeof *ht);
ht->shift = JS_HASH_BITS - n;
n = JS_BIT(n);
#if defined(XP_PC) && defined _MSC_VER && _MSC_VER <= 800
if (n > 16000) {
(*allocOps->freeTable)(allocPriv, ht);
return NULL;
}
#endif /* WIN16 */
nb = n * sizeof(JSHashEntry *);
ht->buckets = (*allocOps->allocTable)(allocPriv, nb);
if (!ht->buckets) {
(*allocOps->freeTable)(allocPriv, ht);
return NULL;
}
memset(ht->buckets, 0, nb);
ht->keyHash = keyHash;
ht->keyCompare = keyCompare;
ht->valueCompare = valueCompare;
ht->allocOps = allocOps;
ht->allocPriv = allocPriv;
return ht;
}
JS_PUBLIC_API(void)
JS_HashTableDestroy(JSHashTable *ht)
{
uint32 i, n;
JSHashEntry *he, *next;
JSHashAllocOps *allocOps = ht->allocOps;
void *allocPriv = ht->allocPriv;
n = NBUCKETS(ht);
for (i = 0; i < n; i++) {
for (he = ht->buckets[i]; he; he = next) {
next = he->next;
(*allocOps->freeEntry)(allocPriv, he, HT_FREE_ENTRY);
}
}
#ifdef DEBUG
memset(ht->buckets, 0xDB, n * sizeof ht->buckets[0]);
#endif
(*allocOps->freeTable)(allocPriv, ht->buckets);
#ifdef DEBUG
memset(ht, 0xDB, sizeof *ht);
#endif
(*allocOps->freeTable)(allocPriv, ht);
}
/*
** Multiplicative hash, from Knuth 6.4.
*/
JS_PUBLIC_API(JSHashEntry **)
JS_HashTableRawLookup(JSHashTable *ht, JSHashNumber keyHash, const void *key)
{
JSHashEntry *he, **hep, **hep0;
JSHashNumber h;
#ifdef HASHMETER
ht->nlookups++;
#endif
h = keyHash * JS_GOLDEN_RATIO;
h >>= ht->shift;
hep = hep0 = &ht->buckets[h];
while ((he = *hep) != NULL) {
if (he->keyHash == keyHash && (*ht->keyCompare)(key, he->key)) {
/* Move to front of chain if not already there */
if (hep != hep0) {
*hep = he->next;
he->next = *hep0;
*hep0 = he;
}
return hep0;
}
hep = &he->next;
#ifdef HASHMETER
ht->nsteps++;
#endif
}
return hep;
}
JS_PUBLIC_API(JSHashEntry *)
JS_HashTableRawAdd(JSHashTable *ht, JSHashEntry **hep,
JSHashNumber keyHash, const void *key, void *value)
{
uint32 i, n;
JSHashEntry *he, *next, **oldbuckets;
size_t nb;
/* Grow the table if it is overloaded */
n = NBUCKETS(ht);
if (ht->nentries >= OVERLOADED(n)) {
#ifdef HASHMETER
ht->ngrows++;
#endif
ht->shift--;
oldbuckets = ht->buckets;
#if defined(XP_PC) && defined _MSC_VER && _MSC_VER <= 800
if (2 * n > 16000)
return NULL;
#endif /* WIN16 */
nb = 2 * n * sizeof(JSHashEntry *);
ht->buckets = (*ht->allocOps->allocTable)(ht->allocPriv, nb);
if (!ht->buckets) {
ht->buckets = oldbuckets;
return NULL;
}
memset(ht->buckets, 0, nb);
for (i = 0; i < n; i++) {
for (he = oldbuckets[i]; he; he = next) {
next = he->next;
hep = JS_HashTableRawLookup(ht, he->keyHash, he->key);
JS_ASSERT(*hep == NULL);
he->next = NULL;
*hep = he;
}
}
#ifdef DEBUG
memset(oldbuckets, 0xDB, n * sizeof oldbuckets[0]);
#endif
(*ht->allocOps->freeTable)(ht->allocPriv, oldbuckets);
hep = JS_HashTableRawLookup(ht, keyHash, key);
}
/* Make a new key value entry */
he = (*ht->allocOps->allocEntry)(ht->allocPriv, key);
if (!he)
return NULL;
he->keyHash = keyHash;
he->key = key;
he->value = value;
he->next = *hep;
*hep = he;
ht->nentries++;
return he;
}
JS_PUBLIC_API(JSHashEntry *)
JS_HashTableAdd(JSHashTable *ht, const void *key, void *value)
{
JSHashNumber keyHash;
JSHashEntry *he, **hep;
keyHash = (*ht->keyHash)(key);
hep = JS_HashTableRawLookup(ht, keyHash, key);
if ((he = *hep) != NULL) {
/* Hit; see if values match */
if ((*ht->valueCompare)(he->value, value)) {
/* key,value pair is already present in table */
return he;
}
if (he->value)
(*ht->allocOps->freeEntry)(ht->allocPriv, he, HT_FREE_VALUE);
he->value = value;
return he;
}
return JS_HashTableRawAdd(ht, hep, keyHash, key, value);
}
JS_PUBLIC_API(void)
JS_HashTableRawRemove(JSHashTable *ht, JSHashEntry **hep, JSHashEntry *he)
{
uint32 i, n;
JSHashEntry *next, **oldbuckets;
size_t nb;
*hep = he->next;
(*ht->allocOps->freeEntry)(ht->allocPriv, he, HT_FREE_ENTRY);
/* Shrink table if it's underloaded */
n = NBUCKETS(ht);
if (--ht->nentries < UNDERLOADED(n)) {
#ifdef HASHMETER
ht->nshrinks++;
#endif
ht->shift++;
oldbuckets = ht->buckets;
nb = n * sizeof(JSHashEntry*) / 2;
ht->buckets = (*ht->allocOps->allocTable)(ht->allocPriv, nb);
if (!ht->buckets) {
ht->buckets = oldbuckets;
return;
}
memset(ht->buckets, 0, nb);
for (i = 0; i < n; i++) {
for (he = oldbuckets[i]; he; he = next) {
next = he->next;
hep = JS_HashTableRawLookup(ht, he->keyHash, he->key);
JS_ASSERT(*hep == NULL);
he->next = NULL;
*hep = he;
}
}
#ifdef DEBUG
memset(oldbuckets, 0xDB, n * sizeof oldbuckets[0]);
#endif
(*ht->allocOps->freeTable)(ht->allocPriv, oldbuckets);
}
}
JS_PUBLIC_API(JSBool)
JS_HashTableRemove(JSHashTable *ht, const void *key)
{
JSHashNumber keyHash;
JSHashEntry *he, **hep;
keyHash = (*ht->keyHash)(key);
hep = JS_HashTableRawLookup(ht, keyHash, key);
if ((he = *hep) == NULL)
return JS_FALSE;
/* Hit; remove element */
JS_HashTableRawRemove(ht, hep, he);
return JS_TRUE;
}
JS_PUBLIC_API(void *)
JS_HashTableLookup(JSHashTable *ht, const void *key)
{
JSHashNumber keyHash;
JSHashEntry *he, **hep;
keyHash = (*ht->keyHash)(key);
hep = JS_HashTableRawLookup(ht, keyHash, key);
if ((he = *hep) != NULL) {
return he->value;
}
return NULL;
}
/*
** Iterate over the entries in the hash table calling func for each
** entry found. Stop if "f" says to (return value & JS_ENUMERATE_STOP).
** Return a count of the number of elements scanned.
*/
JS_PUBLIC_API(int)
JS_HashTableEnumerateEntries(JSHashTable *ht, JSHashEnumerator f, void *arg)
{
JSHashEntry *he, **hep;
uint32 i, nbuckets;
int rv, n = 0;
JSHashEntry *todo = NULL;
nbuckets = NBUCKETS(ht);
for (i = 0; i < nbuckets; i++) {
hep = &ht->buckets[i];
while ((he = *hep) != NULL) {
rv = (*f)(he, n, arg);
n++;
if (rv & (HT_ENUMERATE_REMOVE | HT_ENUMERATE_UNHASH)) {
*hep = he->next;
if (rv & HT_ENUMERATE_REMOVE) {
he->next = todo;
todo = he;
}
} else {
hep = &he->next;
}
if (rv & HT_ENUMERATE_STOP) {
goto out;
}
}
}
out:
hep = &todo;
while ((he = *hep) != NULL) {
JS_HashTableRawRemove(ht, hep, he);
}
return n;
}
#ifdef HASHMETER
#include <math.h>
#include <stdio.h>
JS_PUBLIC_API(void)
JS_HashTableDumpMeter(JSHashTable *ht, JSHashEnumerator dump, FILE *fp)
{
double mean, variance;
uint32 nchains, nbuckets;
uint32 i, n, maxChain, maxChainLen;
JSHashEntry *he;
variance = 0;
nchains = 0;
maxChainLen = 0;
nbuckets = NBUCKETS(ht);
for (i = 0; i < nbuckets; i++) {
he = ht->buckets[i];
if (!he)
continue;
nchains++;
for (n = 0; he; he = he->next)
n++;
variance += n * n;
if (n > maxChainLen) {
maxChainLen = n;
maxChain = i;
}
}
mean = (double)ht->nentries / nchains;
variance = fabs(variance / nchains - mean * mean);
fprintf(fp, "\nHash table statistics:\n");
fprintf(fp, " number of lookups: %u\n", ht->nlookups);
fprintf(fp, " number of entries: %u\n", ht->nentries);
fprintf(fp, " number of grows: %u\n", ht->ngrows);
fprintf(fp, " number of shrinks: %u\n", ht->nshrinks);
fprintf(fp, " mean steps per hash: %g\n", (double)ht->nsteps
/ ht->nlookups);
fprintf(fp, "mean hash chain length: %g\n", mean);
fprintf(fp, " standard deviation: %g\n", sqrt(variance));
fprintf(fp, " max hash chain length: %u\n", maxChainLen);
fprintf(fp, " max hash chain: [%u]\n", maxChain);
for (he = ht->buckets[maxChain], i = 0; he; he = he->next, i++)
if ((*dump)(he, i, fp) != HT_ENUMERATE_NEXT)
break;
}
#endif /* HASHMETER */
JS_PUBLIC_API(int)
JS_HashTableDump(JSHashTable *ht, JSHashEnumerator dump, FILE *fp)
{
int count;
count = JS_HashTableEnumerateEntries(ht, dump, fp);
#ifdef HASHMETER
JS_HashTableDumpMeter(ht, dump, fp);
#endif
return count;
}
JS_PUBLIC_API(JSHashNumber)
JS_HashString(const void *key)
{
JSHashNumber h;
const unsigned char *s;
h = 0;
for (s = key; *s; s++)
h = (h >> 28) ^ (h << 4) ^ *s;
return h;
}
JS_PUBLIC_API(int)
JS_CompareValues(const void *v1, const void *v2)
{
return v1 == v2;
}

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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
*
* The contents of this file are subject to the Netscape Public
* License Version 1.1 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.mozilla.org/NPL/
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express oqr
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* The Original Code is Mozilla Communicator client code, released
* March 31, 1998.
*
* The Initial Developer of the Original Code is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All
* Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the
* terms of the GNU Public License (the "GPL"), in which case the
* provisions of the GPL are applicable instead of those above.
* If you wish to allow use of your version of this file only
* under the terms of the GPL and not to allow others to use your
* version of this file under the NPL, indicate your decision by
* deleting the provisions above and replace them with the notice
* and other provisions required by the GPL. If you do not delete
* the provisions above, a recipient may use your version of this
* file under either the NPL or the GPL.
*/
#ifndef jshash_h___
#define jshash_h___
/*
* API to portable hash table code.
*/
#include <stddef.h>
#include <stdio.h>
#include "jstypes.h"
#include "jscompat.h"
JS_BEGIN_EXTERN_C
typedef uint32 JSHashNumber;
typedef struct JSHashEntry JSHashEntry;
typedef struct JSHashTable JSHashTable;
#define JS_HASH_BITS 32
#define JS_GOLDEN_RATIO 0x9E3779B9U
typedef JSHashNumber (*JSHashFunction)(const void *key);
typedef intN (*JSHashComparator)(const void *v1, const void *v2);
typedef intN (*JSHashEnumerator)(JSHashEntry *he, intN i, void *arg);
/* Flag bits in JSHashEnumerator's return value */
#define HT_ENUMERATE_NEXT 0 /* continue enumerating entries */
#define HT_ENUMERATE_STOP 1 /* stop enumerating entries */
#define HT_ENUMERATE_REMOVE 2 /* remove and free the current entry */
#define HT_ENUMERATE_UNHASH 4 /* just unhash the current entry */
typedef struct JSHashAllocOps {
void * (*allocTable)(void *pool, size_t size);
void (*freeTable)(void *pool, void *item);
JSHashEntry * (*allocEntry)(void *pool, const void *key);
void (*freeEntry)(void *pool, JSHashEntry *he, uintN flag);
} JSHashAllocOps;
#define HT_FREE_VALUE 0 /* just free the entry's value */
#define HT_FREE_ENTRY 1 /* free value and entire entry */
struct JSHashEntry {
JSHashEntry *next; /* hash chain linkage */
JSHashNumber keyHash; /* key hash function result */
const void *key; /* ptr to opaque key */
void *value; /* ptr to opaque value */
};
struct JSHashTable {
JSHashEntry **buckets; /* vector of hash buckets */
uint32 nentries; /* number of entries in table */
uint32 shift; /* multiplicative hash shift */
JSHashFunction keyHash; /* key hash function */
JSHashComparator keyCompare; /* key comparison function */
JSHashComparator valueCompare; /* value comparison function */
JSHashAllocOps *allocOps; /* allocation operations */
void *allocPriv; /* allocation private data */
#ifdef HASHMETER
uint32 nlookups; /* total number of lookups */
uint32 nsteps; /* number of hash chains traversed */
uint32 ngrows; /* number of table expansions */
uint32 nshrinks; /* number of table contractions */
#endif
};
/*
* Create a new hash table.
* If allocOps is null, use default allocator ops built on top of malloc().
*/
extern JS_PUBLIC_API(JSHashTable *)
JS_NewHashTable(uint32 n, JSHashFunction keyHash,
JSHashComparator keyCompare, JSHashComparator valueCompare,
JSHashAllocOps *allocOps, void *allocPriv);
extern JS_PUBLIC_API(void)
JS_HashTableDestroy(JSHashTable *ht);
/* Low level access methods */
extern JS_PUBLIC_API(JSHashEntry **)
JS_HashTableRawLookup(JSHashTable *ht, JSHashNumber keyHash, const void *key);
extern JS_PUBLIC_API(JSHashEntry *)
JS_HashTableRawAdd(JSHashTable *ht, JSHashEntry **hep, JSHashNumber keyHash,
const void *key, void *value);
extern JS_PUBLIC_API(void)
JS_HashTableRawRemove(JSHashTable *ht, JSHashEntry **hep, JSHashEntry *he);
/* Higher level access methods */
extern JS_PUBLIC_API(JSHashEntry *)
JS_HashTableAdd(JSHashTable *ht, const void *key, void *value);
extern JS_PUBLIC_API(JSBool)
JS_HashTableRemove(JSHashTable *ht, const void *key);
extern JS_PUBLIC_API(intN)
JS_HashTableEnumerateEntries(JSHashTable *ht, JSHashEnumerator f, void *arg);
extern JS_PUBLIC_API(void *)
JS_HashTableLookup(JSHashTable *ht, const void *key);
extern JS_PUBLIC_API(intN)
JS_HashTableDump(JSHashTable *ht, JSHashEnumerator dump, FILE *fp);
/* General-purpose C string hash function. */
extern JS_PUBLIC_API(JSHashNumber)
JS_HashString(const void *key);
/* Stub function just returns v1 == v2 */
extern JS_PUBLIC_API(intN)
JS_CompareValues(const void *v1, const void *v2);
JS_END_EXTERN_C
#endif /* jshash_h___ */

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#!/usr/local/bin/perl
# This script modifies C code to use the hijacked NSPR routines that are
# now baked into the JavaScript engine rather than using the NSPR
# routines that they were based on, i.e. types like PRArenaPool are changed
# to JSArenaPool.
#
# This script was used in 9/98 to facilitate the incorporation of some NSPR
# code into the JS engine so as to minimize dependency on NSPR.
#
# Command-line: jsify.pl [options] [filename]*
#
# Options:
# -r Reverse direction of transformation, i.e. JS ==> NSPR2
# -outdir Directory in which to place output files
# NSPR2 symbols that will be modified to JS symbols, e.g.
# PRArena <==> JSArena
@NSPR_symbols = (
"PRArena",
"PRArenaPool",
"PRArenaStats",
"PR_ARENAMETER",
"PR_ARENA_",
"PR_ARENA_ALIGN",
"PR_ARENA_ALLOCATE",
"PR_ARENA_CONST_ALIGN_MASK",
"PR_ARENA_DEFAULT_ALIGN",
"PR_ARENA_DESTROY",
"PR_ARENA_GROW",
"PR_ARENA_MARK",
"PR_ARENA_RELEASE",
"PR_smprintf",
"PR_smprintf_free",
"PR_snprintf",
"PR_sprintf_append",
"PR_sscanf",
"PR_sxprintf",
"PR_vsmprintf",
"PR_vsnprintf",
"PR_vsprintf_append",
"PR_vsxprintf",
"PRCList",
"PRCListStr",
"PRCLists",
"PRDestroyEventProc",
"PREvent",
"PREventFunProc",
"PREventQueue",
"PRHandleEventProc",
"PR_PostEvent",
"PR_PostSynchronousEvent",
"PR_ProcessPendingEvents",
"PR_CreateEventQueue",
"PR_DequeueEvent",
"PR_DestroyEvent",
"PR_DestroyEventQueue",
"PR_EventAvailable",
"PR_EventLoop",
"PR_GetEvent",
"PR_GetEventOwner",
"PR_GetEventQueueMonitor",
"PR_GetEventQueueSelectFD",
"PR_GetMainEventQueue",
"PR_HandleEvent",
"PR_InitEvent",
"PR_ENTER_EVENT_QUEUE_MONITOR",
"PR_EXIT_EVENT_QUEUE_MONITOR",
"PR_MapEvents",
"PR_RevokeEvents",
"PR_cnvtf",
"PR_dtoa",
"PR_strtod",
"PRFileDesc",
"PR_HASH_BITS",
"PR_GOLDEN_RATIO",
"PRHashAllocOps",
"PRHashComparator",
"PRHashEntry",
"PRHashEnumerator",
"PRHashFunction",
"PRHashNumber",
"PRHashTable",
"PR_HashString",
"PR_HashTableAdd",
"PR_HashTableDestroy",
"PR_HashTableDump",
"PR_HashTableEnumerateEntries",
"PR_HashTableLookup",
"PR_HashTableRawAdd",
"PR_HashTableRawLookup",
"PR_HashTableRawRemove",
"PR_HashTableRemove",
"PRBool",
"PRFloat64",
"PRInt16",
"PRInt32",
"PRInt64",
"PRInt8",
"PRIntn",
"PRUint16",
"PRUint32",
"PRUint64",
"PRUint8",
"PRUintn",
"PRPtrDiff",
"PRPtrdiff",
"PRUptrdiff",
"PRUword",
"PRWord",
"PRPackedBool",
"PRSize",
"PRStatus",
"pruword",
"prword",
"prword_t",
"PR_ALIGN_OF_DOUBLE",
"PR_ALIGN_OF_FLOAT",
"PR_ALIGN_OF_INT",
"PR_ALIGN_OF_INT64",
"PR_ALIGN_OF_LONG",
"PR_ALIGN_OF_POINTER",
"PR_ALIGN_OF_SHORT",
"PR_ALIGN_OF_WORD",
"PR_BITS_PER_BYTE",
"PR_BITS_PER_BYTE_LOG2",
"PR_BITS_PER_DOUBLE",
"PR_BITS_PER_DOUBLE_LOG2",
"PR_BITS_PER_FLOAT",
"PR_BITS_PER_FLOAT_LOG2",
"PR_BITS_PER_INT",
"PR_BITS_PER_INT64",
"PR_BITS_PER_INT64_LOG2",
"PR_BITS_PER_INT_LOG2",
"PR_BITS_PER_LONG",
"PR_BITS_PER_LONG_LOG2",
"PR_BITS_PER_SHORT",
"PR_BITS_PER_SHORT_LOG2",
"PR_BITS_PER_WORD",
"PR_BITS_PER_WORD_LOG2",
"PR_BYTES_PER_BYTE",
"PR_BYTES_PER_DOUBLE",
"PR_BYTES_PER_DWORD",
"PR_BYTES_PER_DWORD_LOG2",
"PR_BYTES_PER_FLOAT",
"PR_BYTES_PER_INT",
"PR_BYTES_PER_INT64",
"PR_BYTES_PER_LONG",
"PR_BYTES_PER_SHORT",
"PR_BYTES_PER_WORD",
"PR_BYTES_PER_WORD_LOG2",
"PRSegment",
"PRSegmentAccess",
"PRStuffFunc",
"PRThread",
"PR_APPEND_LINK",
"PR_ASSERT",
"PR_ATOMIC_DWORD_LOAD",
"PR_ATOMIC_DWORD_STORE",
"PR_Abort",
"PR_ArenaAllocate",
"PR_ArenaCountAllocation",
"PR_ArenaCountGrowth",
"PR_ArenaCountInplaceGrowth",
"PR_ArenaCountRelease",
"PR_ArenaCountRetract",
"PR_ArenaFinish",
"PR_ArenaGrow",
"PR_ArenaRelease",
"PR_CompactArenaPool",
"PR_DumpArenaStats",
"PR_FinishArenaPool",
"PR_FreeArenaPool",
"PR_InitArenaPool",
"PR_Assert",
"PR_AttachThread",
"PR_BEGIN_EXTERN_C",
"PR_BEGIN_MACRO",
"PR_BIT",
"PR_BITMASK",
"PR_BUFFER_OVERFLOW_ERROR",
"PR_CALLBACK",
"PR_CALLBACK_DECL",
"PR_CALLOC",
"PR_CEILING_LOG2",
"PR_CLEAR_ARENA",
"PR_CLEAR_BIT",
"PR_CLEAR_UNUSED",
"PR_CLIST_IS_EMPTY",
"PR_COUNT_ARENA",
"PR_CURRENT_THREAD",
"PR_GetSegmentAccess",
"PR_GetSegmentSize",
"PR_GetSegmentVaddr",
"PR_GrowSegment",
"PR_DestroySegment",
"PR_MapSegment",
"PR_NewSegment",
"PR_Segment",
"PR_Seg",
"PR_SEGMENT_NONE",
"PR_SEGMENT_RDONLY",
"PR_SEGMENT_RDWR",
"PR_Calloc",
"PR_CeilingLog2",
"PR_CompareStrings",
"PR_CompareValues",
"PR_DELETE",
"PR_END_EXTERN_C",
"PR_END_MACRO",
"PR_ENUMERATE_STOP",
"PR_FAILURE",
"PR_FALSE",
"PR_FLOOR_LOG2",
"PR_FREEIF",
"PR_FREE_PATTERN",
"PR_FloorLog2",
"PR_FormatTime",
"PR_Free",
"PR_GetEnv",
"PR_GetError",
"PR_INIT_ARENA_POOL",
"PR_INIT_CLIST",
"PR_INIT_STATIC_CLIST",
"PR_INLINE",
"PR_INSERT_AFTER",
"PR_INSERT_BEFORE",
"PR_INSERT_LINK",
"PR_INT32",
"PR_INTERVAL_NO_TIMEOUT",
"PR_INTERVAL_NO_WAIT",
"PR_Init",
"PR_LIST_HEAD",
"PR_LIST_TAIL",
"PR_LOG",
"PR_LOGGING",
"PR_LOG_ALWAYS",
"PR_LOG_BEGIN",
"PR_LOG_DEBUG",
"PR_LOG_DEFINE",
"PR_LOG_END",
"PR_LOG_ERROR",
"PR_LOG_MAX",
"PR_LOG_MIN",
"PR_LOG_NONE",
"PR_LOG_NOTICE",
"PR_LOG_TEST",
"PR_LOG_WARN",
"PR_LOG_WARNING",
"PR_LogFlush",
"PR_LogPrint",
"PR_MALLOC",
"PR_MAX",
"PR_MD_calloc",
"PR_MD_free",
"PR_MD_malloc",
"PR_MD_realloc",
"PR_MIN",
"PR_Malloc",
"PR_NEW",
"PR_NEWZAP",
"PR_NEXT_LINK",
"PR_NOT_REACHED",
"PR_NewCondVar",
"PR_NewHashTable",
"PR_NewLogModule",
"PR_PREV_LINK",
"PR_PUBLIC_API",
"PR_PUBLIC_DATA",
"PR_RANGE_ERROR",
"PR_REALLOC",
"PR_REMOVE_AND_INIT_LINK",
"PR_REMOVE_LINK",
"PR_ROUNDUP",
"PR_Realloc",
"PR_SET_BIT",
"PR_STATIC_CALLBACK",
"PR_SUCCESS",
"PR_SetError",
"PR_SetLogBuffering",
"PR_SetLogFile",
"PR_TEST_BIT",
"PR_TRUE",
"PR_UINT32",
"PR_UPTRDIFF",
"prarena_h___",
"prbit_h___",
"prclist_h___",
"prdtoa_h___",
"prlog_h___",
"prlong_h___",
"prmacos_h___",
"prmem_h___",
"prprf_h___",
"prtypes_h___",
"prarena",
"prbit",
"prbitmap_t",
"prclist",
"prcpucfg",
"prdtoa",
"prhash",
"plhash",
"prlong",
"prmacos",
"prmem",
"prosdep",
"protypes",
"prprf",
"prtypes"
);
while ($ARGV[0] =~ /^-/) {
if ($ARGV[0] eq "-r") {
shift;
$reverse_conversion = 1;
} elsif ($ARGV[0] eq "-outdir") {
shift;
$outdir = shift;
}
}
# Given an NSPR symbol compute the JS equivalent or
# vice-versa
sub subst {
local ($replacement);
local ($sym) = @_;
$replacement = substr($sym,0,2) eq "pr" ? "js" : "JS";
$replacement .= substr($sym, 2);
return $replacement;
}
# Build the regular expression that will convert between the NSPR
# types and the JS types
if ($reverse_conversion) {
die "Not implemented yet";
} else {
foreach $sym (@NSPR_symbols) {
$regexp .= $sym . "|"
}
# Get rid of the last "!"
chop $regexp;
# Replace PR* with JS* and replace pr* with js*
$regexp = 's/(^|\\W)(' . $regexp . ')/$1 . &subst($2)/eg';
# print $regexp;
}
# Pre-compile a little subroutine to perform the regexp substitution
# between NSPR types and JS types
eval('sub convert_from_NSPR {($line) = @_; $line =~ ' . $regexp . ';}');
sub convert_mallocs {
($line) = @_;
$line =~ s/PR_MALLOC/malloc/g;
$line =~ s/PR_REALLOC/realloc/g;
$line =~ s/PR_FREE/free/g;
return $line;
}
sub convert_includes {
($line) = @_;
if ($line !~ /include/) {
return $line;
}
if ($line =~ /prlog\.h/) {
$line = '#include "jsutil.h"'. " /* Added by JSIFY */\n";
} elsif ($line =~ /plhash\.h/) {
$line = '#include "jshash.h"'. " /* Added by JSIFY */\n";
} elsif ($line =~ /plarena\.h/) {
$line = '#include "jsarena.h"'. " /* Added by JSIFY */\n";
} elsif ($line =~ /prmem\.h/) {
$line = "";
} elsif ($line =~ /jsmsg\.def/) {
$line = '#include "js.msg"' . "\n";
} elsif ($line =~ /shellmsg\.def/) {
$line = '#include "jsshell.msg"' . "\n";
} elsif ($line =~ /jsopcode\.def/) {
$line = '#include "jsopcode.tbl"' . "\n";
}
return $line;
}
sub convert_declarations {
($line) = @_;
$line =~ s/PR_EXTERN/JS_EXTERN_API/g;
$line =~ s/PR_IMPLEMENT_DATA/JS_EXPORT_DATA/g;
$line =~ s/PR_IMPLEMENT/JS_EXPORT_API/g;
$line =~ s/PR_CALLBACK/JS_DLL_CALLBACK/g;
$line =~ s/PR_STATIC_CALLBACK/JS_STATIC_DLL_CALLBACK/g;
$line =~ s/PR_IMPORT/JS_IMPORT/g;
$line =~ s/PR_PUBLIC_API/JS_EXPORT_API/g;
$line =~ s/PR_PUBLIC_DATA/JS_EXPORT_DATA/g;
return $line;
}
sub convert_long_long_macros {
($line) = @_;
$line =~ s/\b(LL_)/JSLL_/g;
return $line;
}
sub convert_asserts {
($line) = @_;
$line =~ s/\bPR_ASSERT/JS_ASSERT/g;
return $line;
}
while ($#ARGV >= 0) {
$infile = shift;
# Change filename, e.g. prtime.h to jsprtime.h, except for legacy
# files that start with 'prmj', like prmjtime.h.
$outfile = $infile;
if ($infile !~ /^prmj/) {
$outfile =~ s/^pr/js/;
$outfile =~ s/^pl/js/;
}
if ($outdir) {
$outfile = $outdir . '/' . $outfile;
}
if ($infile eq $outfile) {
die "Error: refuse to overwrite $outfile, use -outdir option."
}
die "Can't open $infile" if !open(INFILE, "<$infile");
die "Can't open $outfile for writing" if !open(OUTFILE, ">$outfile");
while (<INFILE>) {
$line = $_;
#Get rid of #include "prlog.h"
&convert_includes($line);
# Rename PR_EXTERN, PR_IMPORT, etc.
&convert_declarations($line);
# Convert from PR_MALLOC to malloc, etc.
&convert_mallocs($line);
# Convert from PR_ASSERT to JS_ASSERT
# &convert_asserts($line);
# Convert from, e.g. PRArena to JSPRArena
&convert_from_NSPR($line);
# Change LL_* macros to JSLL_*
&convert_long_long_macros($line);
print OUTFILE $line;
}
}

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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
*
* The contents of this file are subject to the Netscape Public
* License Version 1.1 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.mozilla.org/NPL/
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express oqr
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* The Original Code is Mozilla Communicator client code, released
* March 31, 1998.
*
* The Initial Developer of the Original Code is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All
* Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the
* terms of the GNU Public License (the "GPL"), in which case the
* provisions of the GPL are applicable instead of those above.
* If you wish to allow use of your version of this file only
* under the terms of the GPL and not to allow others to use your
* version of this file under the NPL, indicate your decision by
* deleting the provisions above and replace them with the notice
* and other provisions required by the GPL. If you do not delete
* the provisions above, a recipient may use your version of this
* file under either the NPL or the GPL.
*/
#ifndef jsinterp_h___
#define jsinterp_h___
/*
* JS interpreter interface.
*/
#include "jsprvtd.h"
#include "jspubtd.h"
JS_BEGIN_EXTERN_C
/*
* JS stack frame, allocated on the C stack.
*/
struct JSStackFrame {
JSObject *callobj; /* lazily created Call object */
JSObject *argsobj; /* lazily created arguments object */
JSScript *script; /* script being interpreted */
JSFunction *fun; /* function being called or null */
JSObject *thisp; /* "this" pointer if in method */
uintN argc; /* actual argument count */
jsval *argv; /* base of argument stack slots */
jsval rval; /* function return value */
uintN nvars; /* local variable count */
jsval *vars; /* base of variable stack slots */
JSStackFrame *down; /* previous frame */
void *annotation; /* used by Java security */
JSObject *scopeChain; /* scope chain */
jsbytecode *pc; /* program counter */
jsval *sp; /* stack pointer */
uintN sharpDepth; /* array/object initializer depth */
JSObject *sharpArray; /* scope for #n= initializer vars */
JSPackedBool constructing; /* true if called via new operator */
uint8 overrides; /* bit-set of overridden Call properties */
uint8 special; /* special frame type flags, see below */
JSPackedBool reserved; /* reserved for future use */
JSStackFrame *dormantNext; /* next dormant frame chain */
};
/* JS stack frame special flags. */
#define JSFRAME_DEBUGGER 0x1 /* frame for JS_EvaluateInStackFrame */
#define JSFRAME_EVAL 0x2 /* frame for obj_eval */
/*
* Property cache for quickened get/set property opcodes.
*/
#define PROPERTY_CACHE_LOG2 10
#define PROPERTY_CACHE_SIZE JS_BIT(PROPERTY_CACHE_LOG2)
#define PROPERTY_CACHE_MASK JS_BITMASK(PROPERTY_CACHE_LOG2)
#define PROPERTY_CACHE_HASH(obj, id) \
((((jsuword)(obj) >> JSVAL_TAGBITS) ^ (jsuword)(id)) & PROPERTY_CACHE_MASK)
#ifdef JS_THREADSAFE
#if HAVE_ATOMIC_DWORD_ACCESS
#define PCE_LOAD(cache, pce, entry) JS_ATOMIC_DWORD_LOAD(pce, entry)
#define PCE_STORE(cache, pce, entry) JS_ATOMIC_DWORD_STORE(pce, entry)
#else /* !HAVE_ATOMIC_DWORD_ACCESS */
#define PCE_LOAD(cache, pce, entry) \
JS_BEGIN_MACRO \
uint32 _prefills; \
uint32 _fills = (cache)->fills; \
do { \
/* Load until cache->fills is stable (see FILL macro below). */ \
_prefills = _fills; \
(entry) = *(pce); \
} while ((_fills = (cache)->fills) != _prefills); \
JS_END_MACRO
#define PCE_STORE(cache, pce, entry) \
JS_BEGIN_MACRO \
do { \
/* Store until no racing collider stores half or all of pce. */ \
*(pce) = (entry); \
} while (PCE_OBJECT(*pce) != PCE_OBJECT(entry) || \
PCE_PROPERTY(*pce) != PCE_PROPERTY(entry)); \
JS_END_MACRO
#endif /* !HAVE_ATOMIC_DWORD_ACCESS */
#else /* !JS_THREADSAFE */
#define PCE_LOAD(cache, pce, entry) ((entry) = *(pce))
#define PCE_STORE(cache, pce, entry) (*(pce) = (entry))
#endif /* !JS_THREADSAFE */
typedef union JSPropertyCacheEntry {
struct {
JSObject *object; /* weak link to object */
JSProperty *property; /* weak link to property, or not-found id */
} s;
#ifdef HAVE_ATOMIC_DWORD_ACCESS
prdword align;
#endif
} JSPropertyCacheEntry;
/* These may be called in lvalue or rvalue position. */
#define PCE_OBJECT(entry) ((entry).s.object)
#define PCE_PROPERTY(entry) ((entry).s.property)
typedef struct JSPropertyCache {
JSPropertyCacheEntry table[PROPERTY_CACHE_SIZE];
JSBool empty;
uint32 fills;
uint32 recycles;
uint32 tests;
uint32 misses;
uint32 flushes;
} JSPropertyCache;
/* Property-not-found lookup results are cached using this invalid pointer. */
#define PROP_NOT_FOUND(obj,id) ((JSProperty *) ((jsword)(id) | 1))
#define PROP_NOT_FOUND_ID(prop) ((jsid) ((jsword)(prop) & ~1))
#define PROP_FOUND(prop) ((prop) && ((jsword)(prop) & 1) == 0)
#define PROPERTY_CACHE_FILL(cx, cache, obj, id, prop) \
JS_BEGIN_MACRO \
uintN _hashIndex = (uintN)PROPERTY_CACHE_HASH(obj, id); \
JSPropertyCache *_cache = (cache); \
JSPropertyCacheEntry *_pce = &_cache->table[_hashIndex]; \
JSPropertyCacheEntry _entry; \
JSProperty *_pce_prop; \
PCE_LOAD(_cache, _pce, _entry); \
_pce_prop = PCE_PROPERTY(_entry); \
if (_pce_prop && _pce_prop != prop) \
_cache->recycles++; \
PCE_OBJECT(_entry) = obj; \
PCE_PROPERTY(_entry) = prop; \
_cache->empty = JS_FALSE; \
_cache->fills++; \
PCE_STORE(_cache, _pce, _entry); \
JS_END_MACRO
#define PROPERTY_CACHE_TEST(cache, obj, id, prop) \
JS_BEGIN_MACRO \
uintN _hashIndex = (uintN)PROPERTY_CACHE_HASH(obj, id); \
JSPropertyCache *_cache = (cache); \
JSPropertyCacheEntry *_pce = &_cache->table[_hashIndex]; \
JSPropertyCacheEntry _entry; \
JSProperty *_pce_prop; \
PCE_LOAD(_cache, _pce, _entry); \
_pce_prop = PCE_PROPERTY(_entry); \
_cache->tests++; \
if (_pce_prop && \
(((jsword)_pce_prop & 1) \
? PROP_NOT_FOUND_ID(_pce_prop) \
: sym_id(((JSScopeProperty *)_pce_prop)->symbols)) == id && \
PCE_OBJECT(_entry) == obj) { \
prop = _pce_prop; \
} else { \
_cache->misses++; \
prop = NULL; \
} \
JS_END_MACRO
extern void
js_FlushPropertyCache(JSContext *cx);
extern void
js_FlushPropertyCacheByProp(JSContext *cx, JSProperty *prop);
extern JS_FRIEND_API(jsval *)
js_AllocStack(JSContext *cx, uintN nslots, void **markp);
extern JS_FRIEND_API(void)
js_FreeStack(JSContext *cx, void *mark);
extern JSBool
js_GetArgument(JSContext *cx, JSObject *obj, jsval id, jsval *vp);
extern JSBool
js_SetArgument(JSContext *cx, JSObject *obj, jsval id, jsval *vp);
extern JSBool
js_GetLocalVariable(JSContext *cx, JSObject *obj, jsval id, jsval *vp);
extern JSBool
js_SetLocalVariable(JSContext *cx, JSObject *obj, jsval id, jsval *vp);
/*
* NB: js_Invoke requires that cx is currently running JS (i.e., that cx->fp
* is non-null).
*/
extern JS_FRIEND_API(JSBool)
js_Invoke(JSContext *cx, uintN argc, uintN flags);
/*
* Consolidated js_Invoke flags. NB: JSINVOKE_CONSTRUCT must be 1 or JS_TRUE
* (see js_Invoke's initialization of frame.constructing).
*/
#define JSINVOKE_CONSTRUCT 0x1 /* construct object rather than call */
#define JSINVOKE_INTERNAL 0x2 /* internal call, not from a script */
/*
* "Internal" calls may come from C or C++ code using a JSContext on which no
* JS is running (!cx->fp), so they may need to push a dummy JSStackFrame.
*/
#define js_InternalCall(cx,obj,fval,argc,argv,rval) \
js_InternalInvoke(cx, obj, fval, 0, argc, argv, rval)
#define js_InternalConstruct(cx,obj,fval,argc,argv,rval) \
js_InternalInvoke(cx, obj, fval, JSINVOKE_CONSTRUCT, argc, argv, rval)
extern JSBool
js_InternalInvoke(JSContext *cx, JSObject *obj, jsval fval, uintN flags,
uintN argc, jsval *argv, jsval *rval);
extern JSBool
js_Execute(JSContext *cx, JSObject *chain, JSScript *script, JSFunction *fun,
JSStackFrame *down, uintN flags, jsval *result);
extern JSBool
js_Interpret(JSContext *cx, jsval *result);
JS_END_EXTERN_C
#endif /* jsinterp_h___ */

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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
*
* The contents of this file are subject to the Netscape Public
* License Version 1.1 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.mozilla.org/NPL/
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express oqr
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* The Original Code is Mozilla Communicator client code, released
* March 31, 1998.
*
* The Initial Developer of the Original Code is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All
* Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the
* terms of the GNU Public License (the "GPL"), in which case the
* provisions of the GPL are applicable instead of those above.
* If you wish to allow use of your version of this file only
* under the terms of the GPL and not to allow others to use your
* version of this file under the NPL, indicate your decision by
* deleting the provisions above and replace them with the notice
* and other provisions required by the GPL. If you do not delete
* the provisions above, a recipient may use your version of this
* file under either the NPL or the GPL.
*/
/*
* By default all math calls go to fdlibm. The defines for each platform
* remap the math calls to native routines.
*/
#ifndef _LIBMATH_H
#define _LIBMATH_H
#include <math.h>
#include "jsconfig.h"
#ifdef MOZILLA_CLIENT
#include "platform.h"
#endif
/*
* Define which platforms on which to use fdlibm. Not used
* by default since there can be problems with endian-ness and such.
*/
#if defined(_WIN32) && !defined(__MWERKS__)
#define JS_USE_FDLIBM_MATH 1
#elif defined(SUNOS4)
#define JS_USE_FDLIBM_MATH 1
#elif defined(IRIX)
#define JS_USE_FDLIBM_MATH 1
#elif defined(SOLARIS)
#define JS_USE_FDLIBM_MATH 1
#elif defined(HPUX)
#define JS_USE_FDLIBM_MATH 1
#elif defined(linux)
#define JS_USE_FDLIBM_MATH 1
#elif defined(OSF1)
/* Want to use some fdlibm functions but fdlibm broken on OSF1/alpha. */
#define JS_USE_FDLIBM_MATH 0
#elif defined(AIX)
#define JS_USE_FDLIBM_MATH 1
#else
#define JS_USE_FDLIBM_MATH 0
#endif
#if !JS_USE_FDLIBM_MATH
/*
* Use system provided math routines.
*/
#define fd_acos acos
#define fd_asin asin
#define fd_atan atan
#define fd_atan2 atan2
#define fd_ceil ceil
#define fd_copysign copysign
#define fd_cos cos
#define fd_exp exp
#define fd_fabs fabs
#define fd_floor floor
#define fd_fmod fmod
#define fd_log log
#define fd_pow pow
#define fd_sin sin
#define fd_sqrt sqrt
#define fd_tan tan
#else
/*
* Use math routines in fdlibm.
*/
#undef __P
#ifdef __STDC__
#define __P(p) p
#else
#define __P(p) ()
#endif
#if defined _WIN32 || defined SUNOS4
#define fd_acos acos
#define fd_asin asin
#define fd_atan atan
#define fd_cos cos
#define fd_sin sin
#define fd_tan tan
#define fd_exp exp
#define fd_log log
#define fd_sqrt sqrt
#define fd_ceil ceil
#define fd_fabs fabs
#define fd_floor floor
#define fd_fmod fmod
extern double fd_atan2 __P((double, double));
extern double fd_copysign __P((double, double));
#ifdef DEBUG
extern double fd_pow __P((double, double));
#else
#define fd_pow pow
#endif
#elif defined IRIX
#define fd_acos acos
#define fd_asin asin
#define fd_atan atan
#define fd_exp exp
#define fd_log log
#define fd_log10 log10
#define fd_sqrt sqrt
#define fd_fabs fabs
#define fd_floor floor
#define fd_fmod fmod
extern double fd_cos __P((double));
extern double fd_sin __P((double));
extern double fd_tan __P((double));
extern double fd_atan2 __P((double, double));
extern double fd_pow __P((double, double));
extern double fd_ceil __P((double));
extern double fd_copysign __P((double, double));
#elif defined SOLARIS
#define fd_atan atan
#define fd_cos cos
#define fd_sin sin
#define fd_tan tan
#define fd_exp exp
#define fd_sqrt sqrt
#define fd_ceil ceil
#define fd_fabs fabs
#define fd_floor floor
#define fd_fmod fmod
extern double fd_acos __P((double));
extern double fd_asin __P((double));
extern double fd_log __P((double));
extern double fd_atan2 __P((double, double));
extern double fd_pow __P((double, double));
extern double fd_copysign __P((double, double));
#elif defined HPUX
#define fd_cos cos
#define fd_sin sin
#define fd_exp exp
#define fd_sqrt sqrt
#define fd_fabs fabs
#define fd_floor floor
#define fd_fmod fmod
extern double fd_ceil __P((double));
extern double fd_acos __P((double));
extern double fd_log __P((double));
extern double fd_atan2 __P((double, double));
extern double fd_tan __P((double));
extern double fd_pow __P((double, double));
extern double fd_asin __P((double));
extern double fd_atan __P((double));
extern double fd_copysign __P((double, double));
#elif defined(linux)
#define fd_atan atan
#define fd_atan2 atan2
#define fd_ceil ceil
#define fd_cos cos
#define fd_fabs fabs
#define fd_floor floor
#define fd_fmod fmod
#define fd_sin sin
#define fd_sqrt sqrt
#define fd_tan tan
#define fd_copysign copysign
extern double fd_asin __P((double));
extern double fd_acos __P((double));
extern double fd_exp __P((double));
extern double fd_log __P((double));
extern double fd_pow __P((double, double));
#elif defined(OSF1)
#define fd_acos acos
#define fd_asin asin
#define fd_atan atan
#define fd_copysign copysign
#define fd_cos cos
#define fd_exp exp
#define fd_fabs fabs
#define fd_fmod fmod
#define fd_sin sin
#define fd_sqrt sqrt
#define fd_tan tan
extern double fd_atan2 __P((double, double));
extern double fd_ceil __P((double));
extern double fd_floor __P((double));
extern double fd_log __P((double));
extern double fd_pow __P((double, double));
#elif defined(AIX)
#define fd_acos acos
#define fd_asin asin
#define fd_atan2 atan2
#define fd_copysign copysign
#define fd_cos cos
#define fd_exp exp
#define fd_fabs fabs
#define fd_floor floor
#define fd_fmod fmod
#define fd_log log
#define fd_sin sin
#define fd_sqrt sqrt
extern double fd_atan __P((double));
extern double fd_ceil __P((double));
extern double fd_pow __P((double,double));
extern double fd_tan __P((double));
#else /* other platform.. generic paranoid slow fdlibm */
extern double fd_acos __P((double));
extern double fd_asin __P((double));
extern double fd_atan __P((double));
extern double fd_cos __P((double));
extern double fd_sin __P((double));
extern double fd_tan __P((double));
extern double fd_exp __P((double));
extern double fd_log __P((double));
extern double fd_sqrt __P((double));
extern double fd_ceil __P((double));
extern double fd_fabs __P((double));
extern double fd_floor __P((double));
extern double fd_fmod __P((double, double));
extern double fd_atan2 __P((double, double));
extern double fd_pow __P((double, double));
extern double fd_copysign __P((double, double));
#endif
#endif /* JS_USE_FDLIBM_MATH */
#endif /* _LIBMATH_H */

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mozilla/js/src/jslock.c Normal file
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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
*
* The contents of this file are subject to the Netscape Public
* License Version 1.1 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.mozilla.org/NPL/
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express oqr
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* The Original Code is Mozilla Communicator client code, released
* March 31, 1998.
*
* The Initial Developer of the Original Code is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All
* Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the
* terms of the GNU Public License (the "GPL"), in which case the
* provisions of the GPL are applicable instead of those above.
* If you wish to allow use of your version of this file only
* under the terms of the GPL and not to allow others to use your
* version of this file under the NPL, indicate your decision by
* deleting the provisions above and replace them with the notice
* and other provisions required by the GPL. If you do not delete
* the provisions above, a recipient may use your version of this
* file under either the NPL or the GPL.
*/
#ifdef JS_THREADSAFE
/*
* JS locking stubs.
*/
#include "jsstddef.h"
#include <stdlib.h>
#include "jspubtd.h"
#include "prthread.h"
#include "pratom.h"
#include "jsutil.h" /* Added by JSIFY */
#include "jscntxt.h"
#include "jsscope.h"
#include "jspubtd.h"
#include "jslock.h"
#ifndef NSPR_LOCK
#include <memory.h>
#endif
static PRLock **_global_locks;
static int _nr_of_globals=1;
static void
js_LockGlobal(void *id)
{
int i = ((int)id/4)%_nr_of_globals;
PR_Lock(_global_locks[i]);
}
static void
js_UnlockGlobal(void *id)
{
int i = ((int)id/4)%_nr_of_globals;
PR_Unlock(_global_locks[i]);
}
#define ReadWord(W) (W)
#define AtomicAddBody(P,I) \
jsword n; \
do { \
n = ReadWord(*(P)); \
} while (!js_CompareAndSwap(P, n, n + I))
/* Exclude Alpha NT. */
#if defined(_WIN32) && defined(_M_IX86) && !defined(NSPR_LOCK)
#pragma warning( disable : 4035 )
JS_INLINE int
js_CompareAndSwap(jsword *w, jsword ov, jsword nv)
{
__asm {
mov eax,ov
mov ecx, nv
mov ebx, w
lock cmpxchg [ebx], ecx
sete al
and eax,1h
}
}
#elif defined(SOLARIS) && defined(sparc) && !defined(NSPR_LOCK)
#ifndef ULTRA_SPARC
JS_INLINE jsword
js_ReadWord(jsword *p)
{
jsword n;
while ((n = *p) == -1)
;
return n;
}
#undef ReadWord
#define ReadWord(W) js_ReadWord(&(W))
static PRLock *_counter_lock;
#define UsingCounterLock 1
#undef AtomicAddBody
#define AtomicAddBody(P,I) \
PR_Lock(_counter_lock); \
*(P) += I; \
PR_Unlock(_counter_lock)
#endif /* !ULTRA_SPARC */
JS_INLINE int
js_CompareAndSwap(jsword *w, jsword ov, jsword nv)
{
#if defined(__GNUC__)
unsigned int res;
#ifndef ULTRA_SPARC
JS_ASSERT(nv != -1);
asm volatile ("\
stbar\n\
swap [%1],%4\n\
1: cmp %4,-1\n\
be,a 1b\n\
swap [%1],%4\n\
cmp %2,%4\n\
be,a 2f\n\
swap [%1],%3\n\
swap [%1],%4\n\
ba 3f\n\
mov 0,%0\n\
2: mov 1,%0\n\
3:"
: "=r" (res)
: "r" (w), "r" (ov), "r" (nv), "r" (-1));
#else /* ULTRA_SPARC */
JS_ASSERT(ov != nv);
asm volatile ("\
stbar\n\
cas [%1],%2,%3\n\
cmp %2,%3\n\
be,a 1f\n\
mov 1,%0\n\
mov 0,%0\n\
1:"
: "=r" (res)
: "r" (w), "r" (ov), "r" (nv));
#endif /* ULTRA_SPARC */
return (int)res;
#else /* !__GNUC__ */
extern int compare_and_swap(jsword*,jsword,jsword);
#ifndef ULTRA_SPARC
JS_ASSERT(nv != -1);
#else
JS_ASSERT(ov != nv);
#endif
return compare_and_swap(w,ov,nv);
#endif
}
#elif defined(AIX) && !defined(NSPR_LOCK)
#include <sys/atomic_op.h>
JS_INLINE int
js_CompareAndSwap(jsword *w, jsword ov, jsword nv)
{
return !_check_lock((atomic_p)w,ov,nv);
}
#else
static PRLock *_counter_lock;
#define UsingCounterLock 1
#undef AtomicAddBody
#define AtomicAddBody(P,I) \
PR_Lock(_counter_lock); \
*(P) += I; \
PR_Unlock(_counter_lock)
static PRLock *_compare_and_swap_lock;
#define UsingCompareAndSwapLock 1
JS_INLINE int
js_CompareAndSwap(jsword *w, jsword ov, jsword nv)
{
int res = 0;
PR_Lock(_compare_and_swap_lock);
if (*w == ov) {
*w = nv;
res = 1;
}
PR_Unlock(_compare_and_swap_lock);
return res;
}
#endif /* arch-tests */
JS_INLINE void
js_AtomicAdd(jsword *p, jsword i)
{
AtomicAddBody(p,i);
}
jsword
js_CurrentThreadId()
{
return CurrentThreadId();
}
void
js_NewLock(JSThinLock *tl)
{
#ifdef NSPR_LOCK
tl->owner = 0;
tl->fat = (JSFatLock*)JS_NEW_LOCK();
#else
memset(tl, 0, sizeof(JSThinLock));
#endif
}
void
js_DestroyLock(JSThinLock *tl)
{
#ifdef NSPR_LOCK
tl->owner = 0xdeadbeef;
JS_DESTROY_LOCK(((JSLock*)tl->fat));
#else
JS_ASSERT(tl->owner == 0);
JS_ASSERT(tl->fat == NULL);
#endif
}
static void js_Dequeue(JSThinLock *);
JS_INLINE jsval
js_GetSlotWhileLocked(JSContext *cx, JSObject *obj, uint32 slot)
{
jsval v;
#ifndef NSPR_LOCK
JSScope *scope = OBJ_SCOPE(obj);
JSThinLock *tl = &scope->lock;
jsword me = cx->thread;
#endif
JS_ASSERT(obj->slots && slot < obj->map->freeslot);
#ifndef NSPR_LOCK
JS_ASSERT(me == CurrentThreadId());
if (js_CompareAndSwap(&tl->owner, 0, me)) {
if (scope == OBJ_SCOPE(obj)) {
v = obj->slots[slot];
if (!js_CompareAndSwap(&tl->owner, me, 0)) {
scope->count = 1;
js_UnlockObj(cx,obj);
}
return v;
}
if (!js_CompareAndSwap(&tl->owner, me, 0))
js_Dequeue(tl);
}
else if (Thin_RemoveWait(ReadWord(tl->owner)) == me) {
return obj->slots[slot];
}
#endif
js_LockObj(cx,obj);
v = obj->slots[slot];
js_UnlockObj(cx,obj);
return v;
}
JS_INLINE void
js_SetSlotWhileLocked(JSContext *cx, JSObject *obj, uint32 slot, jsval v)
{
#ifndef NSPR_LOCK
JSScope *scope = OBJ_SCOPE(obj);
JSThinLock *tl = &scope->lock;
jsword me = cx->thread;
#endif
JS_ASSERT(obj->slots && slot < obj->map->freeslot);
#ifndef NSPR_LOCK
JS_ASSERT(me == CurrentThreadId());
if (js_CompareAndSwap(&tl->owner, 0, me)) {
if (scope == OBJ_SCOPE(obj)) {
obj->slots[slot] = v;
if (!js_CompareAndSwap(&tl->owner, me, 0)) {
scope->count = 1;
js_UnlockObj(cx,obj);
}
return;
}
if (!js_CompareAndSwap(&tl->owner, me, 0))
js_Dequeue(tl);
}
else if (Thin_RemoveWait(ReadWord(tl->owner)) == me) {
obj->slots[slot] = v;
return;
}
#endif
js_LockObj(cx,obj);
obj->slots[slot] = v;
js_UnlockObj(cx,obj);
}
static JSFatLock *
mallocFatlock()
{
JSFatLock *fl = (JSFatLock *)malloc(sizeof(JSFatLock)); /* for now */
if (!fl) return NULL;
fl->susp = 0;
fl->next = NULL;
fl->prev = NULL;
fl->slock = PR_NewLock();
fl->svar = PR_NewCondVar(fl->slock);
return fl;
}
static void
freeFatlock(JSFatLock *fl)
{
PR_DestroyLock(fl->slock);
PR_DestroyCondVar(fl->svar);
free(fl);
}
static JSFatLock *
listOfFatlocks(int l)
{
JSFatLock *m;
JSFatLock *m0;
int i;
JS_ASSERT(l>0);
m0 = m = mallocFatlock();
for (i=1; i<l; i++) {
m->next = mallocFatlock();
m = m->next;
}
return m0;
}
static void
deleteListOfFatlocks(JSFatLock *m)
{
JSFatLock *m0;
for (; m; m=m0) {
m0 = m->next;
freeFatlock(m);
}
}
static JSFatLockTable* _fl_tables;
static JSFatLock *
allocateFatlock(void *id)
{
JSFatLock *m;
int i = ((int)id/4)%_nr_of_globals;
if (_fl_tables[i].free == NULL) {
#ifdef DEBUG
printf("Ran out of fat locks!\n");
#endif
_fl_tables[i].free = listOfFatlocks(10);
}
m = _fl_tables[i].free;
_fl_tables[i].free = m->next;
_fl_tables[i].free->prev = NULL;
m->susp = 0;
m->next = _fl_tables[i].taken;
m->prev = NULL;
if (_fl_tables[i].taken != NULL)
_fl_tables[i].taken->prev = m;
_fl_tables[i].taken = m;
return m;
}
static void
deallocateFatlock(JSFatLock *m, void *id)
{
int i = ((int)id/4)%_nr_of_globals;
if (m == NULL)
return;
if (m->prev != NULL)
m->prev->next = m->next;
if (m->next != NULL)
m->next->prev = m->prev;
if (m == _fl_tables[i].taken)
_fl_tables[i].taken = m->next;
m->next = _fl_tables[i].free;
_fl_tables[i].free = m;
}
int
js_SetupLocks(int l, int g)
{
int i;
if (_global_locks)
return 1;
if (l > 10000 || l < 0) /* l equals number of initially allocated fat locks */
#ifdef DEBUG
printf("Bad number %d in js_SetupLocks()!\n",l);
#endif
if (g > 100 || g < 0) /* g equals number of global locks */
#ifdef DEBUG
printf("Bad number %d in js_SetupLocks()!\n",l);
#endif
_nr_of_globals = g;
_global_locks = (PRLock**)malloc(_nr_of_globals * sizeof(PRLock*));
JS_ASSERT(_global_locks != NULL);
for (i=0; i<_nr_of_globals; i++) {
_global_locks[i] = PR_NewLock();
JS_ASSERT(_global_locks[i] != NULL);
}
#ifdef UsingCounterLock
_counter_lock = PR_NewLock();
JS_ASSERT(_counter_lock);
#endif
#ifdef UsingCompareAndSwapLock
_compare_and_swap_lock = PR_NewLock();
JS_ASSERT(_compare_and_swap_lock);
#endif
_fl_tables = (JSFatLockTable*)malloc(_nr_of_globals * sizeof(JSFatLockTable));
JS_ASSERT(_fl_tables != NULL);
for (i=0; i<_nr_of_globals; i++) {
_fl_tables[i].free = listOfFatlocks(l);
_fl_tables[i].taken = NULL;
}
return 1;
}
void
js_CleanupLocks()
{
int i;
if (_global_locks != NULL) {
for (i=0; i<_nr_of_globals; i++) {
PR_DestroyLock(_global_locks[i]);
deleteListOfFatlocks(_fl_tables[i].free);
_fl_tables[i].free = NULL;
deleteListOfFatlocks(_fl_tables[i].taken);
_fl_tables[i].taken = NULL;
}
_global_locks = NULL;
#ifdef UsingCounterLock
PR_DestroyLock(_counter_lock);
_counter_lock = NULL;
#endif
#ifdef UsingCompareAndSwapLock
PR_DestroyLock(_compare_and_swap_lock);
_compare_and_swap_lock = NULL;
#endif
}
}
JS_PUBLIC_API(void)
js_InitContextForLocking(JSContext *cx)
{
cx->thread = CurrentThreadId();
JS_ASSERT(Thin_GetWait(cx->thread) == 0);
}
/*
Fast locking and unlocking is implemented by delaying the
allocation of a system lock (fat lock) until contention. As long as
a locking thread A runs uncontended, the lock is represented solely
by storing A's identity in the object being locked.
If another thread B tries to lock the object currently locked by A,
B is enqueued into a fat lock structure (which might have to be
allocated and pointed to by the object), and suspended using NSPR
conditional variables (wait). A wait bit (Bacon bit) is set in the
lock word of the object, signalling to A that when releasing the
lock, B must be dequeued and notified.
The basic operation of the locking primitives (js_Lock(),
js_Unlock(), js_Enqueue(), and js_Dequeue()) is
compare-and-swap. Hence, when locking into p, if
compare-and-swap(p,NULL,me) succeeds this implies that p is
unlocked. Similarly, when unlocking p, if
compare-and-swap(p,me,NULL) succeeds this implies that p is
uncontended (no one is waiting because the wait bit is not set).
When dequeueing, the lock is released, and one of the threads
suspended on the lock is notified. If other threads still are
waiting, the wait bit is kept (in js_Enqueue), and if not, the fat
lock is deallocated.
The functions js_Enqueue, js_Dequeque, js_SuspendThread, and js_ResumeThread
are serialized using a global lock. For further
scalability an array of global locks is used, which is index modulo the
thin lock pointer.
*/
/* (i) global lock is held
(ii) fl->susp >= 0
*/
static int
js_SuspendThread(JSThinLock *tl)
{
JSFatLock *fl;
JSStatus stat;
if (tl->fat == NULL)
fl = tl->fat = allocateFatlock(tl);
else
fl = tl->fat;
JS_ASSERT(fl->susp >= 0);
fl->susp++;
PR_Lock(fl->slock);
js_UnlockGlobal(tl);
stat = (JSStatus)PR_WaitCondVar(fl->svar,PR_INTERVAL_NO_TIMEOUT);
JS_ASSERT(stat != JS_FAILURE);
PR_Unlock(fl->slock);
js_LockGlobal(tl);
fl->susp--;
if (fl->susp == 0) {
deallocateFatlock(fl,tl);
tl->fat = NULL;
}
return tl->fat == NULL;
}
/* (i) global lock is held
(ii) fl->susp > 0
*/
static void
js_ResumeThread(JSThinLock *tl)
{
JSFatLock *fl = tl->fat;
JSStatus stat;
JS_ASSERT(fl != NULL);
JS_ASSERT(fl->susp > 0);
PR_Lock(fl->slock);
js_UnlockGlobal(tl);
stat = (JSStatus)PR_NotifyCondVar(fl->svar);
JS_ASSERT(stat != JS_FAILURE);
PR_Unlock(fl->slock);
}
static void
js_Enqueue(JSThinLock *tl, jsword me)
{
jsword o, n;
js_LockGlobal(tl);
while (1) {
o = ReadWord(tl->owner);
n = Thin_SetWait(o);
if (o != 0 && js_CompareAndSwap(&tl->owner,o,n)) {
if (js_SuspendThread(tl))
me = Thin_RemoveWait(me);
else
me = Thin_SetWait(me);
}
else if (js_CompareAndSwap(&tl->owner,0,me)) {
js_UnlockGlobal(tl);
return;
}
}
}
static void
js_Dequeue(JSThinLock *tl)
{
int o;
js_LockGlobal(tl);
o = ReadWord(tl->owner);
JS_ASSERT(Thin_GetWait(o) != 0);
JS_ASSERT(tl->fat != NULL);
if (!js_CompareAndSwap(&tl->owner,o,0)) /* release it */
JS_ASSERT(0);
js_ResumeThread(tl);
}
JS_INLINE void
js_Lock(JSThinLock *tl, jsword me)
{
JS_ASSERT(me == CurrentThreadId());
if (js_CompareAndSwap(&tl->owner, 0, me))
return;
if (Thin_RemoveWait(ReadWord(tl->owner)) != me)
js_Enqueue(tl, me);
#ifdef DEBUG
else
JS_ASSERT(0);
#endif
}
JS_INLINE void
js_Unlock(JSThinLock *tl, jsword me)
{
JS_ASSERT(me == CurrentThreadId());
if (js_CompareAndSwap(&tl->owner, me, 0))
return;
if (Thin_RemoveWait(ReadWord(tl->owner)) == me)
js_Dequeue(tl);
#ifdef DEBUG
else
JS_ASSERT(0);
#endif
}
void
js_LockRuntime(JSRuntime *rt)
{
PR_Lock(rt->rtLock);
#ifdef DEBUG
rt->rtLockOwner = CurrentThreadId();
#endif
}
void
js_UnlockRuntime(JSRuntime *rt)
{
#ifdef DEBUG
rt->rtLockOwner = 0;
#endif
PR_Unlock(rt->rtLock);
}
static JS_INLINE void
js_LockScope1(JSContext *cx, JSScope *scope, jsword me)
{
JSThinLock *tl;
if (Thin_RemoveWait(ReadWord(scope->lock.owner)) == me) {
JS_ASSERT(scope->count > 0);
scope->count++;
} else {
tl = &scope->lock;
JS_LOCK0(tl,me);
JS_ASSERT(scope->count == 0);
scope->count = 1;
}
}
void
js_LockScope(JSContext *cx, JSScope *scope)
{
JS_ASSERT(cx->thread == CurrentThreadId());
js_LockScope1(cx,scope,cx->thread);
}
void
js_UnlockScope(JSContext *cx, JSScope *scope)
{
jsword me = cx->thread;
JSThinLock *tl;
JS_ASSERT(scope->count > 0);
if (Thin_RemoveWait(ReadWord(scope->lock.owner)) != me) {
JS_ASSERT(0);
return;
}
if (--scope->count == 0) {
tl = &scope->lock;
JS_UNLOCK0(tl,me);
}
}
void
js_TransferScopeLock(JSContext *cx, JSScope *oldscope, JSScope *newscope)
{
jsword me;
JSThinLock *tl;
JS_ASSERT(JS_IS_SCOPE_LOCKED(newscope));
/*
* If the last reference to oldscope went away, newscope needs no lock
* state update.
*/
if (!oldscope)
return;
JS_ASSERT(JS_IS_SCOPE_LOCKED(oldscope));
/*
* Transfer oldscope's entry count to newscope, as it will be unlocked
* now via JS_UNLOCK_OBJ(cx,obj) calls made while we unwind the C stack
* from the current point (under js_GetMutableScope).
*/
newscope->count = oldscope->count;
/*
* Reset oldscope's lock state so that it is completely unlocked.
*/
oldscope->count = 0;
tl = &oldscope->lock;
me = cx->thread;
JS_UNLOCK0(tl,me);
}
void
js_LockObj(JSContext *cx, JSObject *obj)
{
JSScope *scope;
jsword me = cx->thread;
JS_ASSERT(me == CurrentThreadId());
for (;;) {
scope = OBJ_SCOPE(obj);
js_LockScope1(cx, scope, me);
/* If obj still has this scope, we're done. */
if (scope == OBJ_SCOPE(obj))
return;
/* Lost a race with a mutator; retry with obj's new scope. */
js_UnlockScope(cx, scope);
}
}
void
js_UnlockObj(JSContext *cx, JSObject *obj)
{
js_UnlockScope(cx, OBJ_SCOPE(obj));
}
#ifdef DEBUG
JSBool
js_IsRuntimeLocked(JSRuntime *rt)
{
return CurrentThreadId() == rt->rtLockOwner;
}
JSBool
js_IsObjLocked(JSObject *obj)
{
JSScope *scope = OBJ_SCOPE(obj);
return MAP_IS_NATIVE(&scope->map) &&
CurrentThreadId() == Thin_RemoveWait(ReadWord(scope->lock.owner));
}
JSBool
js_IsScopeLocked(JSScope *scope)
{
return CurrentThreadId() == Thin_RemoveWait(ReadWord(scope->lock.owner));
}
#endif
#undef ReadWord
#endif /* JS_THREADSAFE */

229
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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
*
* The contents of this file are subject to the Netscape Public
* License Version 1.1 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.mozilla.org/NPL/
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express oqr
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* The Original Code is Mozilla Communicator client code, released
* March 31, 1998.
*
* The Initial Developer of the Original Code is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All
* Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the
* terms of the GNU Public License (the "GPL"), in which case the
* provisions of the GPL are applicable instead of those above.
* If you wish to allow use of your version of this file only
* under the terms of the GPL and not to allow others to use your
* version of this file under the NPL, indicate your decision by
* deleting the provisions above and replace them with the notice
* and other provisions required by the GPL. If you do not delete
* the provisions above, a recipient may use your version of this
* file under either the NPL or the GPL.
*/
#ifndef jslock_h__
#define jslock_h__
#ifdef JS_THREADSAFE
#include "jstypes.h"
#include "prlock.h"
#include "prcvar.h"
#include "jshash.h" /* Added by JSIFY */
#define Thin_GetWait(W) ((jsword)(W) & 0x1)
#define Thin_SetWait(W) ((jsword)(W) | 0x1)
#define Thin_RemoveWait(W) ((jsword)(W) & ~0x1)
typedef struct JSFatLock {
int susp;
PRLock* slock;
PRCondVar* svar;
struct JSFatLock *next;
struct JSFatLock *prev;
} JSFatLock;
typedef struct JSThinLock {
jsword owner;
JSFatLock *fat;
} JSThinLock;
typedef PRLock JSLock;
typedef struct JSFatLockTable {
JSFatLock *free;
JSFatLock *taken;
} JSFatLockTable;
#define JS_ATOMIC_ADDREF(p, i) js_AtomicAdd(p,i)
#define CurrentThreadId() (jsword)PR_GetCurrentThread()
#define JS_CurrentThreadId() js_CurrentThreadId()
#define JS_NEW_LOCK() PR_NewLock()
#define JS_DESTROY_LOCK(l) PR_DestroyLock(l)
#define JS_ACQUIRE_LOCK(l) PR_Lock(l)
#define JS_RELEASE_LOCK(l) PR_Unlock(l)
#define JS_LOCK0(P,M) js_Lock(P,M)
#define JS_UNLOCK0(P,M) js_Unlock(P,M)
#define JS_NEW_CONDVAR(l) PR_NewCondVar(l)
#define JS_DESTROY_CONDVAR(cv) PR_DestroyCondVar(cv)
#define JS_WAIT_CONDVAR(cv,to) PR_WaitCondVar(cv,to)
#define JS_NO_TIMEOUT PR_INTERVAL_NO_TIMEOUT
#define JS_NOTIFY_CONDVAR(cv) PR_NotifyCondVar(cv)
#define JS_NOTIFY_ALL_CONDVAR(cv) PR_NotifyAllCondVar(cv)
#ifdef DEBUG
#include "jsscope.h"
#define _SET_OBJ_INFO(obj,f,l) \
_SET_SCOPE_INFO(OBJ_SCOPE(obj),f,l)
#define _SET_SCOPE_INFO(scope,f,l) \
(JS_ASSERT(scope->count > 0 && scope->count <= 4), \
scope->file[scope->count-1] = f, \
scope->line[scope->count-1] = l)
#endif /* DEBUG */
#define JS_LOCK_RUNTIME(rt) js_LockRuntime(rt)
#define JS_UNLOCK_RUNTIME(rt) js_UnlockRuntime(rt)
#define JS_LOCK_OBJ(cx,obj) (js_LockObj(cx, obj), \
_SET_OBJ_INFO(obj,__FILE__,__LINE__))
#define JS_UNLOCK_OBJ(cx,obj) js_UnlockObj(cx, obj)
#define JS_LOCK_SCOPE(cx,scope) (js_LockScope(cx, scope), \
_SET_SCOPE_INFO(scope,__FILE__,__LINE__))
#define JS_UNLOCK_SCOPE(cx,scope) js_UnlockScope(cx, scope)
#define JS_TRANSFER_SCOPE_LOCK(cx, scope, newscope) js_TransferScopeLock(cx, scope, newscope)
extern jsword js_CurrentThreadId();
extern JS_INLINE void js_Lock(JSThinLock *, jsword);
extern JS_INLINE void js_Unlock(JSThinLock *, jsword);
extern int js_CompareAndSwap(jsword *, jsword, jsword);
extern void js_AtomicAdd(jsword*, jsword);
extern void js_LockRuntime(JSRuntime *rt);
extern void js_UnlockRuntime(JSRuntime *rt);
extern void js_LockObj(JSContext *cx, JSObject *obj);
extern void js_UnlockObj(JSContext *cx, JSObject *obj);
extern void js_LockScope(JSContext *cx, JSScope *scope);
extern void js_UnlockScope(JSContext *cx, JSScope *scope);
extern int js_SetupLocks(int,int);
extern void js_CleanupLocks();
extern JS_PUBLIC_API(void) js_InitContextForLocking(JSContext *);
extern void js_TransferScopeLock(JSContext *, JSScope *, JSScope *);
extern JS_PUBLIC_API(jsval) js_GetSlotWhileLocked(JSContext *, JSObject *, uint32);
extern JS_PUBLIC_API(void) js_SetSlotWhileLocked(JSContext *, JSObject *, uint32, jsval);
extern void js_NewLock(JSThinLock *);
extern void js_DestroyLock(JSThinLock *);
#ifdef DEBUG
#define JS_IS_RUNTIME_LOCKED(rt) js_IsRuntimeLocked(rt)
#define JS_IS_OBJ_LOCKED(obj) js_IsObjLocked(obj)
#define JS_IS_SCOPE_LOCKED(scope) js_IsScopeLocked(scope)
extern JSBool js_IsRuntimeLocked(JSRuntime *rt);
extern JSBool js_IsObjLocked(JSObject *obj);
extern JSBool js_IsScopeLocked(JSScope *scope);
#else
#define JS_IS_RUNTIME_LOCKED(rt) 0
#define JS_IS_OBJ_LOCKED(obj) 1
#define JS_IS_SCOPE_LOCKED(scope) 1
#endif /* DEBUG */
#define JS_LOCK_OBJ_VOID(cx, obj, e) \
JS_BEGIN_MACRO \
js_LockObj(cx, obj); \
e; \
js_UnlockObj(cx, obj); \
JS_END_MACRO
#define JS_LOCK_VOID(cx, e) \
JS_BEGIN_MACRO \
JSRuntime *_rt = (cx)->runtime; \
JS_LOCK_RUNTIME_VOID(_rt, e); \
JS_END_MACRO
#if defined(JS_USE_ONLY_NSPR_LOCKS) || !(defined(_WIN32) || defined(SOLARIS) || defined(AIX))
#undef JS_LOCK0
#undef JS_UNLOCK0
#define JS_LOCK0(P,M) JS_ACQUIRE_LOCK(((JSLock*)(P)->fat)); (P)->owner = (M)
#define JS_UNLOCK0(P,M) (P)->owner = 0; JS_RELEASE_LOCK(((JSLock*)(P)->fat))
#define NSPR_LOCK 1
#endif /* arch-tests */
#else /* !JS_THREADSAFE */
#define JS_ATOMIC_ADDREF(p,i) (*(p) += i)
#define JS_CurrentThreadId() 0
#define JS_NEW_LOCK() NULL
#define JS_DESTROY_LOCK(l) ((void)0)
#define JS_ACQUIRE_LOCK(l) ((void)0)
#define JS_RELEASE_LOCK(l) ((void)0)
#define JS_LOCK0(P,M) ((void)0)
#define JS_UNLOCK0(P,M) ((void)0)
#define JS_NEW_CONDVAR(l) NULL
#define JS_DESTROY_CONDVAR(cv) ((void)0)
#define JS_WAIT_CONDVAR(cv,to) ((void)0)
#define JS_NOTIFY_CONDVAR(cv) ((void)0)
#define JS_NOTIFY_ALL_CONDVAR(cv) ((void)0)
#define JS_LOCK_RUNTIME(rt) ((void)0)
#define JS_UNLOCK_RUNTIME(rt) ((void)0)
#define JS_LOCK_OBJ(cx,obj) ((void)0)
#define JS_UNLOCK_OBJ(cx,obj) ((void)0)
#define JS_LOCK_OBJ_VOID(cx,obj,e) (e)
#define JS_LOCK_SCOPE(cx,scope) ((void)0)
#define JS_UNLOCK_SCOPE(cx,scope) ((void)0)
#define JS_TRANSFER_SCOPE_LOCK(c,o,n) ((void)0)
#define JS_IS_RUNTIME_LOCKED(rt) 1
#define JS_IS_OBJ_LOCKED(obj) 1
#define JS_IS_SCOPE_LOCKED(scope) 1
#define JS_LOCK_VOID(cx, e) JS_LOCK_RUNTIME_VOID((cx)->runtime, e)
#endif /* !JS_THREADSAFE */
#define JS_LOCK_RUNTIME_VOID(rt,e) \
JS_BEGIN_MACRO \
JS_LOCK_RUNTIME(rt); \
e; \
JS_UNLOCK_RUNTIME(rt); \
JS_END_MACRO
#define JS_LOCK_GC(rt) JS_ACQUIRE_LOCK((rt)->gcLock)
#define JS_UNLOCK_GC(rt) JS_RELEASE_LOCK((rt)->gcLock)
#define JS_LOCK_GC_VOID(rt,e) (JS_LOCK_GC(rt), (e), JS_UNLOCK_GC(rt))
#define JS_AWAIT_GC_DONE(rt) JS_WAIT_CONDVAR((rt)->gcDone, JS_NO_TIMEOUT)
#define JS_NOTIFY_GC_DONE(rt) JS_NOTIFY_ALL_CONDVAR((rt)->gcDone)
#define JS_AWAIT_REQUEST_DONE(rt) JS_WAIT_CONDVAR((rt)->requestDone, \
JS_NO_TIMEOUT)
#define JS_NOTIFY_REQUEST_DONE(rt) JS_NOTIFY_CONDVAR((rt)->requestDone)
#define JS_LOCK(P,CX) JS_LOCK0(P,(CX)->thread)
#define JS_UNLOCK(P,CX) JS_UNLOCK0(P,(CX)->thread)
#ifndef _SET_OBJ_INFO
#define _SET_OBJ_INFO(obj,f,l) ((void)0)
#endif
#ifndef _SET_SCOPE_INFO
#define _SET_SCOPE_INFO(scope,f,l) ((void)0)
#endif
#endif /* jslock_h___ */

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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/*
* The contents of this file are subject to the Netscape Public
* License Version 1.1 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.mozilla.org/NPL/
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express oqr
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* The Original Code is Mozilla Communicator client code, released
* March 31, 1998.
*
* The Initial Developer of the Original Code is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All
* Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the
* terms of the GNU Public License (the "GPL"), in which case the
* provisions of the GPL are applicable instead of those above.
* If you wish to allow use of your version of this file only
* under the terms of the GPL and not to allow others to use your
* version of this file under the NPL, indicate your decision by
* deleting the provisions above and replace them with the notice
* and other provisions required by the GPL. If you do not delete
* the provisions above, a recipient may use your version of this
* file under either the NPL or the GPL.
*/
#include "jsbit.h"
/*
** Compute the log of the least power of 2 greater than or equal to n
*/
JS_PUBLIC_API(JSIntn) JS_CeilingLog2(JSUint32 n)
{
JSIntn log2 = 0;
if (n & (n-1))
log2++;
if (n >> 16)
log2 += 16, n >>= 16;
if (n >> 8)
log2 += 8, n >>= 8;
if (n >> 4)
log2 += 4, n >>= 4;
if (n >> 2)
log2 += 2, n >>= 2;
if (n >> 1)
log2++;
return log2;
}
/*
** Compute the log of the greatest power of 2 less than or equal to n.
** This really just finds the highest set bit in the word.
*/
JS_PUBLIC_API(JSIntn) JS_FloorLog2(JSUint32 n)
{
JSIntn log2 = 0;
if (n >> 16)
log2 += 16, n >>= 16;
if (n >> 8)
log2 += 8, n >>= 8;
if (n >> 4)
log2 += 4, n >>= 4;
if (n >> 2)
log2 += 2, n >>= 2;
if (n >> 1)
log2++;
return log2;
}

276
mozilla/js/src/jslong.c Normal file
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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/*
* The contents of this file are subject to the Netscape Public
* License Version 1.1 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.mozilla.org/NPL/
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express oqr
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* The Original Code is Mozilla Communicator client code, released
* March 31, 1998.
*
* The Initial Developer of the Original Code is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All
* Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the
* terms of the GNU Public License (the "GPL"), in which case the
* provisions of the GPL are applicable instead of those above.
* If you wish to allow use of your version of this file only
* under the terms of the GPL and not to allow others to use your
* version of this file under the NPL, indicate your decision by
* deleting the provisions above and replace them with the notice
* and other provisions required by the GPL. If you do not delete
* the provisions above, a recipient may use your version of this
* file under either the NPL or the GPL.
*/
#include "jstypes.h"
#include "jslong.h"
static JSInt64 ll_zero = JSLL_INIT( 0x00000000,0x00000000 );
static JSInt64 ll_maxint = JSLL_INIT( 0x7fffffff, 0xffffffff );
static JSInt64 ll_minint = JSLL_INIT( 0x80000000, 0x00000000 );
#ifdef HAVE_WATCOM_BUG_2
JSInt64 __pascal __loadds __export
JSLL_Zero(void) { return ll_zero; }
JSInt64 __pascal __loadds __export
JSLL_MaxInt(void) { return ll_maxint; }
JSInt64 __pascal __loadds __export
JSLL_MinInt(void) { return ll_minint; }
#else
JS_PUBLIC_API(JSInt64) JSLL_Zero(void) { return ll_zero; }
JS_PUBLIC_API(JSInt64) JSLL_MaxInt(void) { return ll_maxint; }
JS_PUBLIC_API(JSInt64) JSLL_MinInt(void) { return ll_minint; }
#endif
#ifndef JS_HAVE_LONG_LONG
/*
** Divide 64-bit a by 32-bit b, which must be normalized so its high bit is 1.
*/
static void norm_udivmod32(JSUint32 *qp, JSUint32 *rp, JSUint64 a, JSUint32 b)
{
JSUint32 d1, d0, q1, q0;
JSUint32 r1, r0, m;
d1 = jshi16(b);
d0 = jslo16(b);
r1 = a.hi % d1;
q1 = a.hi / d1;
m = q1 * d0;
r1 = (r1 << 16) | jshi16(a.lo);
if (r1 < m) {
q1--, r1 += b;
if (r1 >= b /* i.e., we didn't get a carry when adding to r1 */
&& r1 < m) {
q1--, r1 += b;
}
}
r1 -= m;
r0 = r1 % d1;
q0 = r1 / d1;
m = q0 * d0;
r0 = (r0 << 16) | jslo16(a.lo);
if (r0 < m) {
q0--, r0 += b;
if (r0 >= b
&& r0 < m) {
q0--, r0 += b;
}
}
*qp = (q1 << 16) | q0;
*rp = r0 - m;
}
static JSUint32 CountLeadingZeros(JSUint32 a)
{
JSUint32 t;
JSUint32 r = 32;
if ((t = a >> 16) != 0)
r -= 16, a = t;
if ((t = a >> 8) != 0)
r -= 8, a = t;
if ((t = a >> 4) != 0)
r -= 4, a = t;
if ((t = a >> 2) != 0)
r -= 2, a = t;
if ((t = a >> 1) != 0)
r -= 1, a = t;
if (a & 1)
r--;
return r;
}
JS_PUBLIC_API(void) jsll_udivmod(JSUint64 *qp, JSUint64 *rp, JSUint64 a, JSUint64 b)
{
JSUint32 n0, n1, n2;
JSUint32 q0, q1;
JSUint32 rsh, lsh;
n0 = a.lo;
n1 = a.hi;
if (b.hi == 0) {
if (b.lo > n1) {
/* (0 q0) = (n1 n0) / (0 D0) */
lsh = CountLeadingZeros(b.lo);
if (lsh) {
/*
* Normalize, i.e. make the most significant bit of the
* denominator be set.
*/
b.lo = b.lo << lsh;
n1 = (n1 << lsh) | (n0 >> (32 - lsh));
n0 = n0 << lsh;
}
a.lo = n0, a.hi = n1;
norm_udivmod32(&q0, &n0, a, b.lo);
q1 = 0;
/* remainder is in n0 >> lsh */
} else {
/* (q1 q0) = (n1 n0) / (0 d0) */
if (b.lo == 0) /* user wants to divide by zero! */
b.lo = 1 / b.lo; /* so go ahead and crash */
lsh = CountLeadingZeros(b.lo);
if (lsh == 0) {
/*
* From (n1 >= b.lo)
* && (the most significant bit of b.lo is set),
* conclude that
* (the most significant bit of n1 is set)
* && (the leading quotient digit q1 = 1).
*
* This special case is necessary, not an optimization
* (Shifts counts of 32 are undefined).
*/
n1 -= b.lo;
q1 = 1;
} else {
/*
* Normalize.
*/
rsh = 32 - lsh;
b.lo = b.lo << lsh;
n2 = n1 >> rsh;
n1 = (n1 << lsh) | (n0 >> rsh);
n0 = n0 << lsh;
a.lo = n1, a.hi = n2;
norm_udivmod32(&q1, &n1, a, b.lo);
}
/* n1 != b.lo... */
a.lo = n0, a.hi = n1;
norm_udivmod32(&q0, &n0, a, b.lo);
/* remainder in n0 >> lsh */
}
if (rp) {
rp->lo = n0 >> lsh;
rp->hi = 0;
}
} else {
if (b.hi > n1) {
/* (0 0) = (n1 n0) / (D1 d0) */
q0 = 0;
q1 = 0;
/* remainder in (n1 n0) */
if (rp) {
rp->lo = n0;
rp->hi = n1;
}
} else {
/* (0 q0) = (n1 n0) / (d1 d0) */
lsh = CountLeadingZeros(b.hi);
if (lsh == 0) {
/*
* From (n1 >= b.hi)
* && (the most significant bit of b.hi is set),
* conclude that
* (the most significant bit of n1 is set)
* && (the quotient digit q0 = 0 or 1).
*
* This special case is necessary, not an optimization.
*/
/*
* The condition on the next line takes advantage of that
* n1 >= b.hi (true due to control flow).
*/
if (n1 > b.hi || n0 >= b.lo) {
q0 = 1;
a.lo = n0, a.hi = n1;
JSLL_SUB(a, a, b);
} else {
q0 = 0;
}
q1 = 0;
if (rp) {
rp->lo = n0;
rp->hi = n1;
}
} else {
JSInt64 m;
/*
* Normalize.
*/
rsh = 32 - lsh;
b.hi = (b.hi << lsh) | (b.lo >> rsh);
b.lo = b.lo << lsh;
n2 = n1 >> rsh;
n1 = (n1 << lsh) | (n0 >> rsh);
n0 = n0 << lsh;
a.lo = n1, a.hi = n2;
norm_udivmod32(&q0, &n1, a, b.hi);
JSLL_MUL32(m, q0, b.lo);
if ((m.hi > n1) || ((m.hi == n1) && (m.lo > n0))) {
q0--;
JSLL_SUB(m, m, b);
}
q1 = 0;
/* Remainder is ((n1 n0) - (m1 m0)) >> lsh */
if (rp) {
a.lo = n0, a.hi = n1;
JSLL_SUB(a, a, m);
rp->lo = (a.hi << rsh) | (a.lo >> lsh);
rp->hi = a.hi >> lsh;
}
}
}
}
if (qp) {
qp->lo = q0;
qp->hi = q1;
}
}
#endif /* !JS_HAVE_LONG_LONG */

433
mozilla/js/src/jslong.h Normal file
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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/*
* The contents of this file are subject to the Netscape Public
* License Version 1.1 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.mozilla.org/NPL/
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express oqr
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* The Original Code is Mozilla Communicator client code, released
* March 31, 1998.
*
* The Initial Developer of the Original Code is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All
* Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the
* terms of the GNU Public License (the "GPL"), in which case the
* provisions of the GPL are applicable instead of those above.
* If you wish to allow use of your version of this file only
* under the terms of the GPL and not to allow others to use your
* version of this file under the NPL, indicate your decision by
* deleting the provisions above and replace them with the notice
* and other provisions required by the GPL. If you do not delete
* the provisions above, a recipient may use your version of this
* file under either the NPL or the GPL.
*/
/*
** File: jslong.h
** Description: Portable access to 64 bit numerics
**
** Long-long (64-bit signed integer type) support. Some C compilers
** don't support 64 bit integers yet, so we use these macros to
** support both machines that do and don't.
**/
#ifndef jslong_h___
#define jslong_h___
#include "jstypes.h"
JS_BEGIN_EXTERN_C
/***********************************************************************
** DEFINES: JSLL_MaxInt
** JSLL_MinInt
** JSLL_Zero
** DESCRIPTION:
** Various interesting constants and static variable
** initializer
***********************************************************************/
#ifdef HAVE_WATCOM_BUG_2
JSInt64 __pascal __loadds __export
JSLL_MaxInt(void);
JSInt64 __pascal __loadds __export
JSLL_MinInt(void);
JSInt64 __pascal __loadds __export
JSLL_Zero(void);
#else
extern JS_PUBLIC_API(JSInt64) JSLL_MaxInt(void);
extern JS_PUBLIC_API(JSInt64) JSLL_MinInt(void);
extern JS_PUBLIC_API(JSInt64) JSLL_Zero(void);
#endif
#define JSLL_MAXINT JSLL_MaxInt()
#define JSLL_MININT JSLL_MinInt()
#define JSLL_ZERO JSLL_Zero()
#ifdef JS_HAVE_LONG_LONG
#if JS_BYTES_PER_LONG == 8
#define JSLL_INIT(hi, lo) ((hi ## L << 32) + lo ## L)
#elif defined(WIN32) || defined(WIN16)
#define JSLL_INIT(hi, lo) ((hi ## i64 << 32) + lo ## i64)
#else
#define JSLL_INIT(hi, lo) ((hi ## LL << 32) + lo ## LL)
#endif
/***********************************************************************
** MACROS: JSLL_*
** DESCRIPTION:
** The following macros define portable access to the 64 bit
** math facilities.
**
***********************************************************************/
/***********************************************************************
** MACROS: JSLL_<relational operators>
**
** JSLL_IS_ZERO Test for zero
** JSLL_EQ Test for equality
** JSLL_NE Test for inequality
** JSLL_GE_ZERO Test for zero or positive
** JSLL_CMP Compare two values
***********************************************************************/
#define JSLL_IS_ZERO(a) ((a) == 0)
#define JSLL_EQ(a, b) ((a) == (b))
#define JSLL_NE(a, b) ((a) != (b))
#define JSLL_GE_ZERO(a) ((a) >= 0)
#define JSLL_CMP(a, op, b) ((JSInt64)(a) op (JSInt64)(b))
#define JSLL_UCMP(a, op, b) ((JSUint64)(a) op (JSUint64)(b))
/***********************************************************************
** MACROS: JSLL_<logical operators>
**
** JSLL_AND Logical and
** JSLL_OR Logical or
** JSLL_XOR Logical exclusion
** JSLL_OR2 A disgusting deviation
** JSLL_NOT Negation (one's compliment)
***********************************************************************/
#define JSLL_AND(r, a, b) ((r) = (a) & (b))
#define JSLL_OR(r, a, b) ((r) = (a) | (b))
#define JSLL_XOR(r, a, b) ((r) = (a) ^ (b))
#define JSLL_OR2(r, a) ((r) = (r) | (a))
#define JSLL_NOT(r, a) ((r) = ~(a))
/***********************************************************************
** MACROS: JSLL_<mathematical operators>
**
** JSLL_NEG Negation (two's compliment)
** JSLL_ADD Summation (two's compliment)
** JSLL_SUB Difference (two's compliment)
***********************************************************************/
#define JSLL_NEG(r, a) ((r) = -(a))
#define JSLL_ADD(r, a, b) ((r) = (a) + (b))
#define JSLL_SUB(r, a, b) ((r) = (a) - (b))
/***********************************************************************
** MACROS: JSLL_<mathematical operators>
**
** JSLL_MUL Product (two's compliment)
** JSLL_DIV Quotient (two's compliment)
** JSLL_MOD Modulus (two's compliment)
***********************************************************************/
#define JSLL_MUL(r, a, b) ((r) = (a) * (b))
#define JSLL_DIV(r, a, b) ((r) = (a) / (b))
#define JSLL_MOD(r, a, b) ((r) = (a) % (b))
/***********************************************************************
** MACROS: JSLL_<shifting operators>
**
** JSLL_SHL Shift left [0..64] bits
** JSLL_SHR Shift right [0..64] bits with sign extension
** JSLL_USHR Unsigned shift right [0..64] bits
** JSLL_ISHL Signed shift left [0..64] bits
***********************************************************************/
#define JSLL_SHL(r, a, b) ((r) = (JSInt64)(a) << (b))
#define JSLL_SHR(r, a, b) ((r) = (JSInt64)(a) >> (b))
#define JSLL_USHR(r, a, b) ((r) = (JSUint64)(a) >> (b))
#define JSLL_ISHL(r, a, b) ((r) = (JSInt64)(a) << (b))
/***********************************************************************
** MACROS: JSLL_<conversion operators>
**
** JSLL_L2I Convert to signed 32 bit
** JSLL_L2UI Convert to unsigned 32 bit
** JSLL_L2F Convert to floating point
** JSLL_L2D Convert to floating point
** JSLL_I2L Convert signed to 64 bit
** JSLL_UI2L Convert unsigned to 64 bit
** JSLL_F2L Convert float to 64 bit
** JSLL_D2L Convert float to 64 bit
***********************************************************************/
#define JSLL_L2I(i, l) ((i) = (JSInt32)(l))
#define JSLL_L2UI(ui, l) ((ui) = (JSUint32)(l))
#define JSLL_L2F(f, l) ((f) = (JSFloat64)(l))
#define JSLL_L2D(d, l) ((d) = (JSFloat64)(l))
#define JSLL_I2L(l, i) ((l) = (JSInt64)(i))
#define JSLL_UI2L(l, ui) ((l) = (JSInt64)(ui))
#define JSLL_F2L(l, f) ((l) = (JSInt64)(f))
#define JSLL_D2L(l, d) ((l) = (JSInt64)(d))
/***********************************************************************
** MACROS: JSLL_UDIVMOD
** DESCRIPTION:
** Produce both a quotient and a remainder given an unsigned
** INPUTS: JSUint64 a: The dividend of the operation
** JSUint64 b: The quotient of the operation
** OUTPUTS: JSUint64 *qp: pointer to quotient
** JSUint64 *rp: pointer to remainder
***********************************************************************/
#define JSLL_UDIVMOD(qp, rp, a, b) \
(*(qp) = ((JSUint64)(a) / (b)), \
*(rp) = ((JSUint64)(a) % (b)))
#else /* !JS_HAVE_LONG_LONG */
#ifdef IS_LITTLE_ENDIAN
#define JSLL_INIT(hi, lo) {JS_INT32(lo), JS_INT32(hi)}
#else
#define JSLL_INIT(hi, lo) {JS_INT32(hi), JS_INT32(lo)}
#endif
#define JSLL_IS_ZERO(a) (((a).hi == 0) && ((a).lo == 0))
#define JSLL_EQ(a, b) (((a).hi == (b).hi) && ((a).lo == (b).lo))
#define JSLL_NE(a, b) (((a).hi != (b).hi) || ((a).lo != (b).lo))
#define JSLL_GE_ZERO(a) (((a).hi >> 31) == 0)
#ifdef DEBUG
#define JSLL_CMP(a, op, b) (JS_ASSERT((#op)[1] != '='), JSLL_REAL_CMP(a, op, b))
#define JSLL_CMP(a, op, b) (JS_ASSERT((#op)[1] != '='), JSLL_REAL_CMP(a, op, b))
#else
#define JSLL_CMP(a, op, b) JSLL_REAL_CMP(a, op, b)
#define JSLL_CMP(a, op, b) JSLL_REAL_CMP(a, op, b)
#endif
#define JSLL_REAL_CMP(a,op,b) (((JSInt32)(a).hi op (JSInt32)(b).hi) || \
(((a).hi == (b).hi) && ((a).lo op (b).lo)))
#define JSLL_REAL_UCMP(a,op,b) (((a).hi op (b).hi) || \
(((a).hi == (b).hi) && ((a).lo op (b).lo)))
#define JSLL_AND(r, a, b) ((r).lo = (a).lo & (b).lo, \
(r).hi = (a).hi & (b).hi)
#define JSLL_OR(r, a, b) ((r).lo = (a).lo | (b).lo, \
(r).hi = (a).hi | (b).hi)
#define JSLL_XOR(r, a, b) ((r).lo = (a).lo ^ (b).lo, \
(r).hi = (a).hi ^ (b).hi)
#define JSLL_OR2(r, a) ((r).lo = (r).lo | (a).lo, \
(r).hi = (r).hi | (a).hi)
#define JSLL_NOT(r, a) ((r).lo = ~(a).lo, \
(r).hi = ~(a).hi)
#define JSLL_NEG(r, a) ((r).lo = -(JSInt32)(a).lo, \
(r).hi = -(JSInt32)(a).hi - ((r).lo != 0))
#define JSLL_ADD(r, a, b) { \
JSInt64 _a, _b; \
_a = a; _b = b; \
(r).lo = _a.lo + _b.lo; \
(r).hi = _a.hi + _b.hi + ((r).lo < _b.lo); \
}
#define JSLL_SUB(r, a, b) { \
JSInt64 _a, _b; \
_a = a; _b = b; \
(r).lo = _a.lo - _b.lo; \
(r).hi = _a.hi - _b.hi - (_a.lo < _b.lo); \
}
#define JSLL_MUL(r, a, b) { \
JSInt64 _a, _b; \
_a = a; _b = b; \
JSLL_MUL32(r, _a.lo, _b.lo); \
(r).hi += _a.hi * _b.lo + _a.lo * _b.hi; \
}
#define jslo16(a) ((a) & JS_BITMASK(16))
#define jshi16(a) ((a) >> 16)
#define JSLL_MUL32(r, a, b) { \
JSUint32 _a1, _a0, _b1, _b0, _y0, _y1, _y2, _y3; \
_a1 = jshi16(a), _a0 = jslo16(a); \
_b1 = jshi16(b), _b0 = jslo16(b); \
_y0 = _a0 * _b0; \
_y1 = _a0 * _b1; \
_y2 = _a1 * _b0; \
_y3 = _a1 * _b1; \
_y1 += jshi16(_y0); /* can't carry */ \
_y1 += _y2; /* might carry */ \
if (_y1 < _y2) \
_y3 += (JSUint32)(JS_BIT(16)); /* propagate */ \
(r).lo = (jslo16(_y1) << 16) + jslo16(_y0); \
(r).hi = _y3 + jshi16(_y1); \
}
#define JSLL_UDIVMOD(qp, rp, a, b) jsll_udivmod(qp, rp, a, b)
extern JS_PUBLIC_API(void) jsll_udivmod(JSUint64 *qp, JSUint64 *rp, JSUint64 a, JSUint64 b);
#define JSLL_DIV(r, a, b) { \
JSInt64 _a, _b; \
JSUint32 _negative = (JSInt32)(a).hi < 0; \
if (_negative) { \
JSLL_NEG(_a, a); \
} else { \
_a = a; \
} \
if ((JSInt32)(b).hi < 0) { \
_negative ^= 1; \
JSLL_NEG(_b, b); \
} else { \
_b = b; \
} \
JSLL_UDIVMOD(&(r), 0, _a, _b); \
if (_negative) \
JSLL_NEG(r, r); \
}
#define JSLL_MOD(r, a, b) { \
JSInt64 _a, _b; \
JSUint32 _negative = (JSInt32)(a).hi < 0; \
if (_negative) { \
JSLL_NEG(_a, a); \
} else { \
_a = a; \
} \
if ((JSInt32)(b).hi < 0) { \
JSLL_NEG(_b, b); \
} else { \
_b = b; \
} \
JSLL_UDIVMOD(0, &(r), _a, _b); \
if (_negative) \
JSLL_NEG(r, r); \
}
#define JSLL_SHL(r, a, b) { \
if (b) { \
JSInt64 _a; \
_a = a; \
if ((b) < 32) { \
(r).lo = _a.lo << ((b) & 31); \
(r).hi = (_a.hi << ((b) & 31)) | (_a.lo >> (32 - (b))); \
} else { \
(r).lo = 0; \
(r).hi = _a.lo << ((b) & 31); \
} \
} else { \
(r) = (a); \
} \
}
/* a is an JSInt32, b is JSInt32, r is JSInt64 */
#define JSLL_ISHL(r, a, b) { \
if (b) { \
JSInt64 _a; \
_a.lo = (a); \
_a.hi = 0; \
if ((b) < 32) { \
(r).lo = (a) << ((b) & 31); \
(r).hi = ((a) >> (32 - (b))); \
} else { \
(r).lo = 0; \
(r).hi = (a) << ((b) & 31); \
} \
} else { \
(r).lo = (a); \
(r).hi = 0; \
} \
}
#define JSLL_SHR(r, a, b) { \
if (b) { \
JSInt64 _a; \
_a = a; \
if ((b) < 32) { \
(r).lo = (_a.hi << (32 - (b))) | (_a.lo >> ((b) & 31)); \
(r).hi = (JSInt32)_a.hi >> ((b) & 31); \
} else { \
(r).lo = (JSInt32)_a.hi >> ((b) & 31); \
(r).hi = (JSInt32)_a.hi >> 31; \
} \
} else { \
(r) = (a); \
} \
}
#define JSLL_USHR(r, a, b) { \
if (b) { \
JSInt64 _a; \
_a = a; \
if ((b) < 32) { \
(r).lo = (_a.hi << (32 - (b))) | (_a.lo >> ((b) & 31)); \
(r).hi = _a.hi >> ((b) & 31); \
} else { \
(r).lo = _a.hi >> ((b) & 31); \
(r).hi = 0; \
} \
} else { \
(r) = (a); \
} \
}
#define JSLL_L2I(i, l) ((i) = (l).lo)
#define JSLL_L2UI(ui, l) ((ui) = (l).lo)
#define JSLL_L2F(f, l) { double _d; JSLL_L2D(_d, l); (f) = (JSFloat64)_d; }
#define JSLL_L2D(d, l) { \
int _negative; \
JSInt64 _absval; \
\
_negative = (l).hi >> 31; \
if (_negative) { \
JSLL_NEG(_absval, l); \
} else { \
_absval = l; \
} \
(d) = (double)_absval.hi * 4.294967296e9 + _absval.lo; \
if (_negative) \
(d) = -(d); \
}
#define JSLL_I2L(l, i) { JSInt32 _i = (i) >> 31; (l).lo = (i); (l).hi = _i; }
#define JSLL_UI2L(l, ui) ((l).lo = (ui), (l).hi = 0)
#define JSLL_F2L(l, f) { double _d = (double)f; JSLL_D2L(l, _d); }
#define JSLL_D2L(l, d) { \
int _negative; \
double _absval, _d_hi; \
JSInt64 _lo_d; \
\
_negative = ((d) < 0); \
_absval = _negative ? -(d) : (d); \
\
(l).hi = _absval / 4.294967296e9; \
(l).lo = 0; \
JSLL_L2D(_d_hi, l); \
_absval -= _d_hi; \
_lo_d.hi = 0; \
if (_absval < 0) { \
_lo_d.lo = -_absval; \
JSLL_SUB(l, l, _lo_d); \
} else { \
_lo_d.lo = _absval; \
JSLL_ADD(l, l, _lo_d); \
} \
\
if (_negative) \
JSLL_NEG(l, l); \
}
#endif /* !JS_HAVE_LONG_LONG */
JS_END_EXTERN_C
#endif /* jslong_h___ */

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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
*
* The contents of this file are subject to the Netscape Public
* License Version 1.1 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.mozilla.org/NPL/
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express oqr
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* The Original Code is Mozilla Communicator client code, released
* March 31, 1998.
*
* The Initial Developer of the Original Code is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All
* Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the
* terms of the GNU Public License (the "GPL"), in which case the
* provisions of the GPL are applicable instead of those above.
* If you wish to allow use of your version of this file only
* under the terms of the GPL and not to allow others to use your
* version of this file under the NPL, indicate your decision by
* deleting the provisions above and replace them with the notice
* and other provisions required by the GPL. If you do not delete
* the provisions above, a recipient may use your version of this
* file under either the NPL or the GPL.
*/
/*
* JS math package.
*/
#include "jsstddef.h"
#include "jslibmath.h"
#include <stdlib.h>
#include "jstypes.h"
#include "jslong.h"
#include "prmjtime.h"
#include "jsapi.h"
#include "jsatom.h"
#include "jscntxt.h"
#include "jsconfig.h"
#include "jslock.h"
#include "jsmath.h"
#include "jsnum.h"
#include "jsobj.h"
#ifndef M_E
#define M_E 2.7182818284590452354
#endif
#ifndef M_LOG2E
#define M_LOG2E 1.4426950408889634074
#endif
#ifndef M_LOG10E
#define M_LOG10E 0.43429448190325182765
#endif
#ifndef M_LN2
#define M_LN2 0.69314718055994530942
#endif
#ifndef M_LN10
#define M_LN10 2.30258509299404568402
#endif
#ifndef M_PI
#define M_PI 3.14159265358979323846
#endif
#ifndef M_SQRT2
#define M_SQRT2 1.41421356237309504880
#endif
#ifndef M_SQRT1_2
#define M_SQRT1_2 0.70710678118654752440
#endif
static JSConstDoubleSpec math_constants[] = {
{M_E, "E", 0, {0,0,0}},
{M_LOG2E, "LOG2E", 0, {0,0,0}},
{M_LOG10E, "LOG10E", 0, {0,0,0}},
{M_LN2, "LN2", 0, {0,0,0}},
{M_LN10, "LN10", 0, {0,0,0}},
{M_PI, "PI", 0, {0,0,0}},
{M_SQRT2, "SQRT2", 0, {0,0,0}},
{M_SQRT1_2, "SQRT1_2", 0, {0,0,0}},
{0,0,0,{0,0,0}}
};
static JSClass math_class = {
"Math",
0,
JS_PropertyStub, JS_PropertyStub, JS_PropertyStub, JS_PropertyStub,
JS_EnumerateStub, JS_ResolveStub, JS_ConvertStub, JS_FinalizeStub,
JSCLASS_NO_OPTIONAL_MEMBERS
};
static JSBool
math_abs(JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval)
{
jsdouble x, z;
if (!js_ValueToNumber(cx, argv[0], &x))
return JS_FALSE;
z = fd_fabs(x);
return js_NewNumberValue(cx, z, rval);
}
static JSBool
math_acos(JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval)
{
jsdouble x, z;
if (!js_ValueToNumber(cx, argv[0], &x))
return JS_FALSE;
z = fd_acos(x);
return js_NewNumberValue(cx, z, rval);
}
static JSBool
math_asin(JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval)
{
jsdouble x, z;
if (!js_ValueToNumber(cx, argv[0], &x))
return JS_FALSE;
z = fd_asin(x);
return js_NewNumberValue(cx, z, rval);
}
static JSBool
math_atan(JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval)
{
jsdouble x, z;
if (!js_ValueToNumber(cx, argv[0], &x))
return JS_FALSE;
z = fd_atan(x);
return js_NewNumberValue(cx, z, rval);
}
static JSBool
math_atan2(JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval)
{
jsdouble x, y, z;
if (!js_ValueToNumber(cx, argv[0], &x))
return JS_FALSE;
if (!js_ValueToNumber(cx, argv[1], &y))
return JS_FALSE;
z = fd_atan2(x, y);
return js_NewNumberValue(cx, z, rval);
}
static JSBool
math_ceil(JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval)
{
jsdouble x, z;
if (!js_ValueToNumber(cx, argv[0], &x))
return JS_FALSE;
z = fd_ceil(x);
return js_NewNumberValue(cx, z, rval);
}
static JSBool
math_cos(JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval)
{
jsdouble x, z;
if (!js_ValueToNumber(cx, argv[0], &x))
return JS_FALSE;
z = fd_cos(x);
return js_NewNumberValue(cx, z, rval);
}
static JSBool
math_exp(JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval)
{
jsdouble x, z;
if (!js_ValueToNumber(cx, argv[0], &x))
return JS_FALSE;
z = fd_exp(x);
return js_NewNumberValue(cx, z, rval);
}
static JSBool
math_floor(JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval)
{
jsdouble x, z;
if (!js_ValueToNumber(cx, argv[0], &x))
return JS_FALSE;
z = fd_floor(x);
return js_NewNumberValue(cx, z, rval);
}
static JSBool
math_log(JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval)
{
jsdouble x, z;
if (!js_ValueToNumber(cx, argv[0], &x))
return JS_FALSE;
z = fd_log(x);
return js_NewNumberValue(cx, z, rval);
}
static JSBool
math_max(JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval)
{
jsdouble x, z = *cx->runtime->jsNegativeInfinity;
uintN i;
if (argc == 0) {
*rval = DOUBLE_TO_JSVAL(cx->runtime->jsNegativeInfinity);
return JS_TRUE;
}
for (i = 0; i < argc; i++) {
if (!js_ValueToNumber(cx, argv[i], &x))
return JS_FALSE;
if (JSDOUBLE_IS_NaN(x)) {
*rval = DOUBLE_TO_JSVAL(cx->runtime->jsNaN);
return JS_TRUE;
}
if ((x==0)&&(x==z)&&(fd_copysign(1.0,z)==-1))
z = x;
else
z = (x > z) ? x : z;
}
return js_NewNumberValue(cx, z, rval);
}
static JSBool
math_min(JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval)
{
jsdouble x, z = *cx->runtime->jsPositiveInfinity;
uintN i;
if (argc == 0) {
*rval = DOUBLE_TO_JSVAL(cx->runtime->jsPositiveInfinity);
return JS_TRUE;
}
for (i = 0; i < argc; i++) {
if (!js_ValueToNumber(cx, argv[i], &x))
return JS_FALSE;
if (JSDOUBLE_IS_NaN(x)) {
*rval = DOUBLE_TO_JSVAL(cx->runtime->jsNaN);
return JS_TRUE;
}
if ((x==0)&&(x==z)&&(fd_copysign(1.0,x)==-1))
z = x;
else
z = (x < z) ? x : z;
}
return js_NewNumberValue(cx, z, rval);
}
static JSBool
math_pow(JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval)
{
jsdouble x, y, z;
if (!js_ValueToNumber(cx, argv[0], &x))
return JS_FALSE;
if (!js_ValueToNumber(cx, argv[1], &y))
return JS_FALSE;
z = fd_pow(x, y);
return js_NewNumberValue(cx, z, rval);
}
/*
* Math.random() support, lifted from java.util.Random.java.
*/
static void
random_setSeed(JSRuntime *rt, int64 seed)
{
int64 tmp;
JSLL_I2L(tmp, 1000);
JSLL_DIV(seed, seed, tmp);
JSLL_XOR(tmp, seed, rt->rngMultiplier);
JSLL_AND(rt->rngSeed, tmp, rt->rngMask);
}
static void
random_init(JSRuntime *rt)
{
int64 tmp, tmp2;
/* Do at most once. */
if (rt->rngInitialized)
return;
rt->rngInitialized = JS_TRUE;
/* rt->rngMultiplier = 0x5DEECE66DL */
JSLL_ISHL(tmp, 0x5D, 32);
JSLL_UI2L(tmp2, 0xEECE66DL);
JSLL_OR(rt->rngMultiplier, tmp, tmp2);
/* rt->rngAddend = 0xBL */
JSLL_I2L(rt->rngAddend, 0xBL);
/* rt->rngMask = (1L << 48) - 1 */
JSLL_I2L(tmp, 1);
JSLL_SHL(tmp2, tmp, 48);
JSLL_SUB(rt->rngMask, tmp2, tmp);
/* rt->rngDscale = (jsdouble)(1L << 54) */
JSLL_SHL(tmp2, tmp, 54);
JSLL_L2D(rt->rngDscale, tmp2);
/* Finally, set the seed from current time. */
random_setSeed(rt, PRMJ_Now());
}
static uint32
random_next(JSRuntime *rt, int bits)
{
int64 nextseed, tmp;
uint32 retval;
JSLL_MUL(nextseed, rt->rngSeed, rt->rngMultiplier);
JSLL_ADD(nextseed, nextseed, rt->rngAddend);
JSLL_AND(nextseed, nextseed, rt->rngMask);
rt->rngSeed = nextseed;
JSLL_USHR(tmp, nextseed, 48 - bits);
JSLL_L2I(retval, tmp);
return retval;
}
static jsdouble
random_nextDouble(JSRuntime *rt)
{
int64 tmp, tmp2;
jsdouble d;
JSLL_ISHL(tmp, random_next(rt, 27), 27);
JSLL_UI2L(tmp2, random_next(rt, 27));
JSLL_ADD(tmp, tmp, tmp2);
JSLL_L2D(d, tmp);
return d / rt->rngDscale;
}
static JSBool
math_random(JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval)
{
JSRuntime *rt;
jsdouble z;
rt = cx->runtime;
JS_LOCK_RUNTIME(rt);
random_init(rt);
z = random_nextDouble(rt);
JS_UNLOCK_RUNTIME(rt);
return js_NewNumberValue(cx, z, rval);
}
static JSBool
math_round(JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval)
{
jsdouble x, z;
if (!js_ValueToNumber(cx, argv[0], &x))
return JS_FALSE;
z = fd_copysign(fd_floor(x + 0.5), x);
return js_NewNumberValue(cx, z, rval);
}
static JSBool
math_sin(JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval)
{
jsdouble x, z;
if (!js_ValueToNumber(cx, argv[0], &x))
return JS_FALSE;
z = fd_sin(x);
return js_NewNumberValue(cx, z, rval);
}
static JSBool
math_sqrt(JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval)
{
jsdouble x, z;
if (!js_ValueToNumber(cx, argv[0], &x))
return JS_FALSE;
z = fd_sqrt(x);
return js_NewNumberValue(cx, z, rval);
}
static JSBool
math_tan(JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval)
{
jsdouble x, z;
if (!js_ValueToNumber(cx, argv[0], &x))
return JS_FALSE;
z = fd_tan(x);
return js_NewNumberValue(cx, z, rval);
}
#if JS_HAS_TOSOURCE
static JSBool
math_toSource(JSContext *cx, JSObject *obj, uintN argc, jsval *argv,
jsval *rval)
{
*rval = ATOM_KEY(cx->runtime->atomState.MathAtom);
return JS_TRUE;
}
#endif
static JSFunctionSpec math_static_methods[] = {
#ifdef JS_HAS_TOSOURCE
{js_toSource_str, math_toSource, 0, 0, 0},
#endif
{"abs", math_abs, 1, 0, 0},
{"acos", math_acos, 1, 0, 0},
{"asin", math_asin, 1, 0, 0},
{"atan", math_atan, 1, 0, 0},
{"atan2", math_atan2, 2, 0, 0},
{"ceil", math_ceil, 1, 0, 0},
{"cos", math_cos, 1, 0, 0},
{"exp", math_exp, 1, 0, 0},
{"floor", math_floor, 1, 0, 0},
{"log", math_log, 1, 0, 0},
{"max", math_max, 2, 0, 0},
{"min", math_min, 2, 0, 0},
{"pow", math_pow, 2, 0, 0},
{"random", math_random, 0, 0, 0},
{"round", math_round, 1, 0, 0},
{"sin", math_sin, 1, 0, 0},
{"sqrt", math_sqrt, 1, 0, 0},
{"tan", math_tan, 1, 0, 0},
{0,0,0,0,0}
};
JSObject *
js_InitMathClass(JSContext *cx, JSObject *obj)
{
JSObject *Math;
Math = JS_DefineObject(cx, obj, "Math", &math_class, NULL, 0);
if (!Math)
return NULL;
if (!JS_DefineFunctions(cx, Math, math_static_methods))
return NULL;
if (!JS_DefineConstDoubles(cx, Math, math_constants))
return NULL;
return Math;
}

18
mozilla/js/src/jsmath.h Normal file
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@@ -0,0 +1,18 @@
/* -*- Mode: C; tab-width: 8 -*-
* Copyright (C) 1998 Netscape Communications Corporation, All Rights Reserved.
*/
#ifndef jsmath_h___
#define jsmath_h___
/*
* JS math functions.
*/
JS_BEGIN_EXTERN_C
extern JSObject *
js_InitMathClass(JSContext *cx, JSObject *obj);
JS_END_EXTERN_C
#endif /* jsmath_h___ */

939
mozilla/js/src/jsnum.c Normal file
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@@ -0,0 +1,939 @@
/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
*
* The contents of this file are subject to the Netscape Public
* License Version 1.1 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.mozilla.org/NPL/
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express oqr
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* The Original Code is Mozilla Communicator client code, released
* March 31, 1998.
*
* The Initial Developer of the Original Code is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All
* Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the
* terms of the GNU Public License (the "GPL"), in which case the
* provisions of the GPL are applicable instead of those above.
* If you wish to allow use of your version of this file only
* under the terms of the GPL and not to allow others to use your
* version of this file under the NPL, indicate your decision by
* deleting the provisions above and replace them with the notice
* and other provisions required by the GPL. If you do not delete
* the provisions above, a recipient may use your version of this
* file under either the NPL or the GPL.
*/
/*
* JS number type and wrapper class.
*/
#include "jsstddef.h"
#include <errno.h>
#ifdef XP_PC
#include <float.h>
#endif
#include <math.h>
#include <stdlib.h>
#include <string.h>
#include "jstypes.h"
#include "jsutil.h" /* Added by JSIFY */
#include "jsapi.h"
#include "jsatom.h"
#include "jscntxt.h"
#include "jsconfig.h"
#include "jsdtoa.h"
#include "jsgc.h"
#include "jsinterp.h"
#include "jsnum.h"
#include "jsobj.h"
#include "jsopcode.h"
#include "jsprf.h"
#include "jsstr.h"
union dpun {
struct {
#ifdef IS_LITTLE_ENDIAN
uint32 lo, hi;
#else
uint32 hi, lo;
#endif
} s;
jsdouble d;
};
static JSBool
num_isNaN(JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval)
{
jsdouble x;
if (!js_ValueToNumber(cx, argv[0], &x))
return JS_FALSE;
*rval = BOOLEAN_TO_JSVAL(JSDOUBLE_IS_NaN(x));
return JS_TRUE;
}
static JSBool
num_isFinite(JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval)
{
jsdouble x;
if (!js_ValueToNumber(cx, argv[0], &x))
return JS_FALSE;
*rval = BOOLEAN_TO_JSVAL(JSDOUBLE_IS_FINITE(x));
return JS_TRUE;
}
static JSBool
num_parseFloat(JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval)
{
JSString *str;
jsdouble d;
const jschar *ep;
str = js_ValueToString(cx, argv[0]);
if (!str)
return JS_FALSE;
if (!js_strtod(cx, str->chars, &ep, &d))
return JS_FALSE;
if (ep == str->chars) {
*rval = DOUBLE_TO_JSVAL(cx->runtime->jsNaN);
return JS_TRUE;
}
return js_NewNumberValue(cx, d, rval);
}
/* See ECMA 15.1.2.2. */
static JSBool
num_parseInt(JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval)
{
JSString *str;
jsint radix;
jsdouble d;
const jschar *ep;
str = js_ValueToString(cx, argv[0]);
if (!str)
return JS_FALSE;
if (argc > 1) {
if (!js_ValueToECMAInt32(cx, argv[1], &radix))
return JS_FALSE;
} else
radix = 0;
if (radix != 0 && (radix < 2 || radix > 36)) {
*rval = DOUBLE_TO_JSVAL(cx->runtime->jsNaN);
return JS_TRUE;
}
if (!js_strtointeger(cx, str->chars, &ep, radix, &d))
return JS_FALSE;
if (ep == str->chars) {
*rval = DOUBLE_TO_JSVAL(cx->runtime->jsNaN);
return JS_TRUE;
}
return js_NewNumberValue(cx, d, rval);
}
static JSFunctionSpec number_functions[] = {
{"isNaN", num_isNaN, 1,0,0},
{"isFinite", num_isFinite, 1,0,0},
{"parseFloat", num_parseFloat, 1,0,0},
{"parseInt", num_parseInt, 2,0,0},
{0,0,0,0,0}
};
static JSClass number_class = {
"Number",
JSCLASS_HAS_PRIVATE,
JS_PropertyStub, JS_PropertyStub, JS_PropertyStub, JS_PropertyStub,
JS_EnumerateStub, JS_ResolveStub, JS_ConvertStub, JS_FinalizeStub,
JSCLASS_NO_OPTIONAL_MEMBERS
};
static JSBool
Number(JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval)
{
jsdouble d;
jsval v;
if (argc != 0) {
if (!js_ValueToNumber(cx, argv[0], &d))
return JS_FALSE;
} else {
d = 0.0;
}
if (!js_NewNumberValue(cx, d, &v))
return JS_FALSE;
if (!cx->fp->constructing) {
*rval = v;
return JS_TRUE;
}
OBJ_SET_SLOT(cx, obj, JSSLOT_PRIVATE, v);
return JS_TRUE;
}
#if JS_HAS_TOSOURCE
static JSBool
num_toSource(JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval)
{
jsval v;
jsdouble d;
char numBuf[DTOSTR_STANDARD_BUFFER_SIZE], *numStr;
char buf[64];
JSString *str;
if (!JS_InstanceOf(cx, obj, &number_class, argv))
return JS_FALSE;
v = OBJ_GET_SLOT(cx, obj, JSSLOT_PRIVATE);
JS_ASSERT(JSVAL_IS_NUMBER(v));
d = JSVAL_IS_INT(v) ? (jsdouble)JSVAL_TO_INT(v) : *JSVAL_TO_DOUBLE(v);
numStr = JS_dtostr(numBuf, sizeof numBuf, DTOSTR_STANDARD, 0, d);
if (!numStr) {
JS_ReportOutOfMemory(cx);
return JS_FALSE;
}
JS_snprintf(buf, sizeof buf, "(new %s(%s))", number_class.name, numStr);
str = JS_NewStringCopyZ(cx, buf);
if (!str)
return JS_FALSE;
*rval = STRING_TO_JSVAL(str);
return JS_TRUE;
}
#endif
static JSBool
num_toString(JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval)
{
jsval v;
jsdouble d;
jsint base;
JSString *str;
if (!JS_InstanceOf(cx, obj, &number_class, argv))
return JS_FALSE;
v = OBJ_GET_SLOT(cx, obj, JSSLOT_PRIVATE);
JS_ASSERT(JSVAL_IS_NUMBER(v));
d = JSVAL_IS_INT(v) ? (jsdouble)JSVAL_TO_INT(v) : *JSVAL_TO_DOUBLE(v);
base = 10;
if (argc != 0) {
if (!js_ValueToECMAInt32(cx, argv[0], &base))
return JS_FALSE;
if (base < 2 || base > 36) {
char numBuf[12];
JS_snprintf(numBuf, sizeof numBuf, "%ld", (long) base);
JS_ReportErrorNumber(cx, js_GetErrorMessage, NULL, JSMSG_BAD_RADIX,
numBuf);
return JS_FALSE;
}
}
if (base == 10)
str = js_NumberToString(cx, d);
else {
char *dStr = JS_dtobasestr(base, d);
if (!dStr) {
JS_ReportOutOfMemory(cx);
return JS_FALSE;
}
str = JS_NewStringCopyZ(cx, dStr);
free(dStr);
}
if (!str)
return JS_FALSE;
*rval = STRING_TO_JSVAL(str);
return JS_TRUE;
}
static JSBool
num_valueOf(JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval)
{
if (!JS_InstanceOf(cx, obj, &number_class, argv))
return JS_FALSE;
*rval = OBJ_GET_SLOT(cx, obj, JSSLOT_PRIVATE);
return JS_TRUE;
}
#if JS_HAS_NUMBER_FORMATS
#define MAX_PRECISION 100
static JSBool
num_to(JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval, JSDToStrMode zeroArgMode,
JSDToStrMode oneArgMode, jsint precisionMin, jsint precisionMax, jsint precisionOffset)
{
jsval v;
jsdouble d, precision;
JSString *str;
char buf[DTOSTR_VARIABLE_BUFFER_SIZE(MAX_PRECISION+1)], *numStr; /* Use MAX_PRECISION+1 because precisionOffset can be 1 */
if (!JS_InstanceOf(cx, obj, &number_class, argv))
return JS_FALSE;
v = OBJ_GET_SLOT(cx, obj, JSSLOT_PRIVATE);
JS_ASSERT(JSVAL_IS_NUMBER(v));
d = JSVAL_IS_INT(v) ? (jsdouble)JSVAL_TO_INT(v) : *JSVAL_TO_DOUBLE(v);
if (JSVAL_IS_VOID(argv[0])) {
precision = 0.0;
oneArgMode = zeroArgMode;
} else {
if (!js_ValueToNumber(cx, argv[0], &precision))
return JS_FALSE;
precision = js_DoubleToInteger(precision);
if (precision < precisionMin || precision > precisionMax) {
numStr = JS_dtostr(buf, sizeof buf, DTOSTR_STANDARD, 0, precision);
if (!numStr)
JS_ReportOutOfMemory(cx);
else
JS_ReportErrorNumber(cx, js_GetErrorMessage, NULL, JSMSG_PRECISION_RANGE, numStr);
return JS_FALSE;
}
}
numStr = JS_dtostr(buf, sizeof buf, oneArgMode, (jsint)precision + precisionOffset, d);
if (!numStr) {
JS_ReportOutOfMemory(cx);
return JS_FALSE;
}
str = JS_NewStringCopyZ(cx, numStr);
if (!str)
return JS_FALSE;
*rval = STRING_TO_JSVAL(str);
return JS_TRUE;
}
static JSBool
num_toFixed(JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval)
{
/* We allow a larger range of precision than ECMA requires; this is permitted by ECMA. */
return num_to(cx, obj, argc, argv, rval, DTOSTR_FIXED, DTOSTR_FIXED, -20, MAX_PRECISION, 0);
}
static JSBool
num_toExponential(JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval)
{
/* We allow a larger range of precision than ECMA requires; this is permitted by ECMA. */
return num_to(cx, obj, argc, argv, rval, DTOSTR_STANDARD_EXPONENTIAL, DTOSTR_EXPONENTIAL, 0, MAX_PRECISION, 1);
}
static JSBool
num_toPrecision(JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval)
{
/* We allow a larger range of precision than ECMA requires; this is permitted by ECMA. */
return num_to(cx, obj, argc, argv, rval, DTOSTR_STANDARD, DTOSTR_PRECISION, 1, MAX_PRECISION, 0);
}
#endif /* JS_HAS_NUMBER_FORMATS */
static JSFunctionSpec number_methods[] = {
#if JS_HAS_TOSOURCE
{js_toSource_str, num_toSource, 0,0,0},
#endif
{js_toString_str, num_toString, 0,0,0},
{js_valueOf_str, num_valueOf, 0,0,0},
#if JS_HAS_NUMBER_FORMATS
{"toFixed", num_toFixed, 1,0,0},
{"toExponential", num_toExponential, 1,0,0},
{"toPrecision", num_toPrecision, 1,0,0},
#endif
{0,0,0,0,0}
};
/* NB: Keep this in synch with number_constants[]. */
enum nc_slot {
NC_NaN,
NC_POSITIVE_INFINITY,
NC_NEGATIVE_INFINITY,
NC_MAX_VALUE,
NC_MIN_VALUE,
NC_LIMIT
};
/*
* Some to most C compilers forbid spelling these at compile time, or barf
* if you try, so all but MAX_VALUE are set at runtime by js_InitNumberClass
* using union dpun.
*/
static JSConstDoubleSpec number_constants[] = {
{0, js_NaN_str, 0,{0,0,0}},
{0, "POSITIVE_INFINITY", 0,{0,0,0}},
{0, "NEGATIVE_INFINITY", 0,{0,0,0}},
{1.7976931348623157E+308, "MAX_VALUE", 0,{0,0,0}},
{0, "MIN_VALUE", 0,{0,0,0}},
{0,0,0,{0,0,0}}
};
static jsdouble NaN;
JSObject *
js_InitNumberClass(JSContext *cx, JSObject *obj)
{
JSRuntime *rt;
union dpun u;
JSObject *proto, *ctor;
rt = cx->runtime;
if (!rt->jsNaN) {
#ifndef __MWERKS__
#ifdef XP_PC
#ifdef XP_OS2
/*DSR071597 - I have no idea what this really does other than mucking with the floating */
/*point unit, but it does fix a "floating point underflow" exception I am getting, and there*/
/*is similar code in the Hursley java. Making sure we have the same code in Javascript */
/*where Netscape was calling control87 on Windows... */
_control87(MCW_EM+PC_53+RC_NEAR,MCW_EM+MCW_PC+MCW_RC);
#else
#if defined (_M_IX86)
/* On Alpha platform this is handled via Compiler option */
_control87(MCW_EM, MCW_EM);
#endif
#endif /* XP_OS2 */
#endif /* XP_PC */
#endif /* __MWERKS__ */
u.s.hi = JSDOUBLE_HI32_EXPMASK | JSDOUBLE_HI32_MANTMASK;
u.s.lo = 0xffffffff;
number_constants[NC_NaN].dval = NaN = u.d;
rt->jsNaN = js_NewDouble(cx, NaN);
if (!rt->jsNaN || !js_LockGCThing(cx, rt->jsNaN))
return NULL;
u.s.hi = JSDOUBLE_HI32_EXPMASK;
u.s.lo = 0x00000000;
number_constants[NC_POSITIVE_INFINITY].dval = u.d;
rt->jsPositiveInfinity = js_NewDouble(cx, u.d);
if (!rt->jsPositiveInfinity ||
!js_LockGCThing(cx, rt->jsPositiveInfinity)) {
return NULL;
}
u.s.hi = JSDOUBLE_HI32_SIGNBIT | JSDOUBLE_HI32_EXPMASK;
u.s.lo = 0x00000000;
number_constants[NC_NEGATIVE_INFINITY].dval = u.d;
rt->jsNegativeInfinity = js_NewDouble(cx, u.d);
if (!rt->jsNegativeInfinity ||
!js_LockGCThing(cx, rt->jsNegativeInfinity)) {
return NULL;
}
u.s.hi = 0;
u.s.lo = 1;
number_constants[NC_MIN_VALUE].dval = u.d;
}
if (!JS_DefineFunctions(cx, obj, number_functions))
return NULL;
proto = JS_InitClass(cx, obj, NULL, &number_class, Number, 1,
NULL, number_methods, NULL, NULL);
if (!proto || !(ctor = JS_GetConstructor(cx, proto)))
return NULL;
OBJ_SET_SLOT(cx, proto, JSSLOT_PRIVATE, JSVAL_ZERO);
if (!JS_DefineConstDoubles(cx, ctor, number_constants))
return NULL;
/* ECMA 15.1.1.1 */
if (!JS_DefineProperty(cx, obj, js_NaN_str, DOUBLE_TO_JSVAL(rt->jsNaN),
NULL, NULL, 0)) {
return NULL;
}
/* ECMA 15.1.1.2 */
if (!JS_DefineProperty(cx, obj, "Infinity",
DOUBLE_TO_JSVAL(rt->jsPositiveInfinity),
NULL, NULL, 0)) {
return NULL;
}
return proto;
}
jsdouble *
js_NewDouble(JSContext *cx, jsdouble d)
{
jsdouble *dp;
dp = js_AllocGCThing(cx, GCX_DOUBLE);
if (!dp)
return NULL;
*dp = d;
return dp;
}
void
js_FinalizeDouble(JSContext *cx, jsdouble *dp)
{
*dp = NaN;
}
JSBool
js_NewDoubleValue(JSContext *cx, jsdouble d, jsval *rval)
{
jsdouble *dp;
dp = js_NewDouble(cx, d);
if (!dp)
return JS_FALSE;
*rval = DOUBLE_TO_JSVAL(dp);
return JS_TRUE;
}
JSBool
js_NewNumberValue(JSContext *cx, jsdouble d, jsval *rval)
{
jsint i;
if (JSDOUBLE_IS_INT(d, i) && INT_FITS_IN_JSVAL(i)) {
*rval = INT_TO_JSVAL(i);
} else {
if (!js_NewDoubleValue(cx, d, rval))
return JS_FALSE;
}
return JS_TRUE;
}
JSObject *
js_NumberToObject(JSContext *cx, jsdouble d)
{
JSObject *obj;
jsval v;
obj = js_NewObject(cx, &number_class, NULL, NULL);
if (!obj)
return NULL;
if (!js_NewNumberValue(cx, d, &v)) {
cx->newborn[GCX_OBJECT] = NULL;
return NULL;
}
OBJ_SET_SLOT(cx, obj, JSSLOT_PRIVATE, v);
return obj;
}
JSString *
js_NumberToString(JSContext *cx, jsdouble d)
{
jsint i;
char buf[DTOSTR_STANDARD_BUFFER_SIZE];
char *numStr = buf;
if (JSDOUBLE_IS_INT(d, i))
JS_snprintf(buf, sizeof buf, "%ld", (long)i);
else {
numStr = JS_dtostr(buf, sizeof buf, DTOSTR_STANDARD, 0, d);
if (!numStr) {
JS_ReportOutOfMemory(cx);
return NULL;
}
}
return JS_NewStringCopyZ(cx, numStr);
}
JSBool
js_ValueToNumber(JSContext *cx, jsval v, jsdouble *dp)
{
JSObject *obj;
JSString *str;
const jschar *ep;
jsdouble d;
if (JSVAL_IS_OBJECT(v)) {
obj = JSVAL_TO_OBJECT(v);
if (!obj) {
*dp = 0;
return JS_TRUE;
}
if (!OBJ_DEFAULT_VALUE(cx, obj, JSTYPE_NUMBER, &v))
return JS_FALSE;
}
if (JSVAL_IS_INT(v)) {
*dp = (jsdouble)JSVAL_TO_INT(v);
} else if (JSVAL_IS_DOUBLE(v)) {
*dp = *JSVAL_TO_DOUBLE(v);
} else if (JSVAL_IS_STRING(v)) {
str = JSVAL_TO_STRING(v);
errno = 0;
/* Note that ECMAScript doesn't treat numbers beginning with a zero as octal numbers here.
* This works because all such numbers will be interpreted as decimal by js_strtod and
* will never get passed to js_strtointeger, which would interpret them as octal. */
if ((!js_strtod(cx, str->chars, &ep, &d) || js_SkipWhiteSpace(ep) != str->chars + str->length) &&
(!js_strtointeger(cx, str->chars, &ep, 0, &d) || js_SkipWhiteSpace(ep) != str->chars + str->length)) {
goto badstr;
}
*dp = d;
} else if (JSVAL_IS_BOOLEAN(v)) {
*dp = JSVAL_TO_BOOLEAN(v) ? 1 : 0;
} else {
#if JS_BUG_FALLIBLE_TONUM
str = js_DecompileValueGenerator(cx, JS_TRUE, v, NULL);
badstr:
if (str) {
JS_ReportErrorNumber(cx, js_GetErrorMessage, NULL, JSMSG_NAN,
JS_GetStringBytes(str));
}
return JS_FALSE;
#else
badstr:
*dp = *cx->runtime->jsNaN;
#endif
}
return JS_TRUE;
}
JSBool
js_ValueToECMAInt32(JSContext *cx, jsval v, int32 *ip)
{
jsdouble d;
if (!js_ValueToNumber(cx, v, &d))
return JS_FALSE;
return js_DoubleToECMAInt32(cx, d, ip);
}
JSBool
js_DoubleToECMAInt32(JSContext *cx, jsdouble d, int32 *ip)
{
jsdouble two32 = 4294967296.0;
jsdouble two31 = 2147483648.0;
if (!JSDOUBLE_IS_FINITE(d) || d == 0) {
*ip = 0;
return JS_TRUE;
}
d = fmod(d, two32);
d = d >= 0 ? d : d + two32;
if (d >= two31)
*ip = (int32)(d - two32);
else
*ip = (int32)d;
return JS_TRUE;
}
JSBool
js_ValueToECMAUint32(JSContext *cx, jsval v, uint32 *ip)
{
jsdouble d;
if (!js_ValueToNumber(cx, v, &d))
return JS_FALSE;
return js_DoubleToECMAUint32(cx, d, ip);
}
JSBool
js_DoubleToECMAUint32(JSContext *cx, jsdouble d, uint32 *ip)
{
JSBool neg;
jsdouble two32 = 4294967296.0;
if (!JSDOUBLE_IS_FINITE(d) || d == 0) {
*ip = 0;
return JS_TRUE;
}
neg = (d < 0);
d = floor(neg ? -d : d);
d = neg ? -d : d;
d = fmod(d, two32);
d = d >= 0 ? d : d + two32;
*ip = (uint32)d;
return JS_TRUE;
}
JSBool
js_ValueToInt32(JSContext *cx, jsval v, int32 *ip)
{
jsdouble d;
JSString *str;
if (!js_ValueToNumber(cx, v, &d))
return JS_FALSE;
if (JSDOUBLE_IS_NaN(d) || d <= -2147483649.0 || 2147483648.0 <= d) {
str = js_DecompileValueGenerator(cx, JS_TRUE, v, NULL);
if (str) {
JS_ReportErrorNumber(cx, js_GetErrorMessage, NULL,
JSMSG_CANT_CONVERT, JS_GetStringBytes(str));
}
return JS_FALSE;
}
*ip = (int32)floor(d + 0.5); /* Round to nearest */
return JS_TRUE;
}
JSBool
js_ValueToUint16(JSContext *cx, jsval v, uint16 *ip)
{
jsdouble d;
jsuint i, m;
JSBool neg;
if (!js_ValueToNumber(cx, v, &d))
return JS_FALSE;
if (d == 0 || !JSDOUBLE_IS_FINITE(d)) {
*ip = 0;
return JS_TRUE;
}
i = (jsuint)d;
if ((jsdouble)i == d) {
*ip = (uint16)i;
return JS_TRUE;
}
neg = (d < 0);
d = floor(neg ? -d : d);
d = neg ? -d : d;
m = JS_BIT(16);
d = fmod(d, m);
if (d < 0)
d += m;
*ip = (uint16) d;
return JS_TRUE;
}
jsdouble
js_DoubleToInteger(jsdouble d)
{
JSBool neg;
if (d == 0)
return d;
if (!JSDOUBLE_IS_FINITE(d)) {
if (JSDOUBLE_IS_NaN(d))
return 0;
return d;
}
neg = (d < 0);
d = floor(neg ? -d : d);
return neg ? -d : d;
}
JSBool
js_strtod(JSContext *cx, const jschar *s, const jschar **ep, jsdouble *dp)
{
size_t i;
char *cstr, *istr, *estr;
JSBool negative;
jsdouble d;
const jschar *s1 = js_SkipWhiteSpace(s);
size_t length = js_strlen(s1);
cstr = malloc(length + 1);
if (!cstr)
return JS_FALSE;
for (i = 0; i <= length; i++) {
if (s1[i] >> 8) {
cstr[i] = 0;
break;
}
cstr[i] = (char)s1[i];
}
istr = cstr;
if ((negative = (*istr == '-')) != 0 || *istr == '+')
istr++;
if (!strncmp(istr, "Infinity", 8)) {
d = *(negative ? cx->runtime->jsNegativeInfinity : cx->runtime->jsPositiveInfinity);
estr = istr + 8;
} else {
errno = 0;
d = JS_strtod(cstr, &estr);
if (errno == ERANGE) {
if (d == HUGE_VAL)
d = *cx->runtime->jsPositiveInfinity;
else if (d == -HUGE_VAL)
d = *cx->runtime->jsNegativeInfinity;
}
#ifdef HPUX
if (d == 0.0 && negative) {
/*
* "-0", "-1e-2000" come out as positive zero
* here on HPUX. Force a negative zero instead.
*/
JSDOUBLE_HI32(d) = JSDOUBLE_HI32_SIGNBIT;
JSDOUBLE_LO32(d) = 0;
}
#endif
}
free(cstr);
i = estr - cstr;
*ep = i ? s1 + i : s;
*dp = d;
return JS_TRUE;
}
struct BinaryDigitReader
{
uintN base; /* Base of number; must be a power of 2 */
uintN digit; /* Current digit value in radix given by base */
uintN digitMask; /* Mask to extract the next bit from digit */
const jschar *digits; /* Pointer to the remaining digits */
const jschar *end; /* Pointer to first non-digit */
};
/* Return the next binary digit from the number or -1 if done */
static intN GetNextBinaryDigit(struct BinaryDigitReader *bdr)
{
intN bit;
if (bdr->digitMask == 0) {
uintN c;
if (bdr->digits == bdr->end)
return -1;
c = *bdr->digits++;
if ('0' <= c && c <= '9')
bdr->digit = c - '0';
else if ('a' <= c && c <= 'z')
bdr->digit = c - 'a' + 10;
else bdr->digit = c - 'A' + 10;
bdr->digitMask = bdr->base >> 1;
}
bit = (bdr->digit & bdr->digitMask) != 0;
bdr->digitMask >>= 1;
return bit;
}
JSBool
js_strtointeger(JSContext *cx, const jschar *s, const jschar **ep, jsint base, jsdouble *dp)
{
JSBool negative;
jsdouble value;
const jschar *start;
const jschar *s1 = js_SkipWhiteSpace(s);
if ((negative = (*s1 == '-')) != 0 || *s1 == '+')
s1++;
if (base == 0)
/* No base supplied, or some base that evaluated to 0. */
if (*s1 == '0')
/* It's either hex or octal; only increment char if str isn't '0' */
if (s1[1] == 'X' || s1[1] == 'x') { /* Hex */
s1 += 2;
base = 16;
} else /* Octal */
base = 8;
else
base = 10; /* Default to decimal. */
else if (base == 16 && *s1 == '0' && (s1[1] == 'X' || s1[1] == 'x'))
/* If base is 16, ignore hex prefix. */
s1 += 2;
/* Done with the preliminaries; find some prefix of the string that's
* a number in the given base.
*/
start = s1; /* Mark - if string is empty, we return NaN. */
value = 0.0;
while (1) {
uintN digit;
jschar c = *s1;
if ('0' <= c && c <= '9')
digit = c - '0';
else if ('a' <= c && c <= 'z')
digit = c - 'a' + 10;
else if ('A' <= c && c <= 'Z')
digit = c - 'A' + 10;
else
break;
if (digit >= (uintN)base)
break;
value = value*base + digit;
s1++;
}
if (value >= 9007199254740992.0) {
if (base == 10) {
/* If we're accumulating a decimal number and the number is >= 2^53, then
* the result from the repeated multiply-add above may be inaccurate. Call
* JS_strtod to get the correct answer.
*/
size_t i;
size_t length = s1 - start;
char *cstr = malloc(length + 1);
char *estr;
if (!cstr)
return JS_FALSE;
for (i = 0; i != length; i++)
cstr[i] = (char)start[i];
cstr[length] = 0;
errno = 0;
value = JS_strtod(cstr, &estr);
if (errno == ERANGE && value == HUGE_VAL)
value = *cx->runtime->jsPositiveInfinity;
free(cstr);
} else if (base == 2 || base == 4 || base == 8 || base == 16 || base == 32) {
/* The number may also be inaccurate for one of these bases. This
* happens if the addition in value*base + digit causes a round-down
* to an even least significant mantissa bit when the first dropped bit
* is a one. If any of the following digits in the number (which haven't
* been added in yet) are nonzero then the correct action would have
* been to round up instead of down. An example of this occurs when
* reading the number 0x1000000000000081, which rounds to 0x1000000000000000
* instead of 0x1000000000000100.
*/
struct BinaryDigitReader bdr;
intN bit, bit2;
intN j;
bdr.base = base;
bdr.digitMask = 0;
bdr.digits = start;
bdr.end = s1;
value = 0.0;
/* Skip leading zeros. */
do {
bit = GetNextBinaryDigit(&bdr);
} while (bit == 0);
if (bit == 1) {
/* Gather the 53 significant bits (including the leading 1) */
value = 1.0;
for (j = 52; j; j--) {
bit = GetNextBinaryDigit(&bdr);
if (bit < 0)
goto done;
value = value*2 + bit;
}
/* bit2 is the 54th bit (the first dropped from the mantissa) */
bit2 = GetNextBinaryDigit(&bdr);
if (bit2 >= 0) {
jsdouble factor = 2.0;
intN sticky = 0; /* sticky is 1 if any bit beyond the 54th is 1 */
intN bit3;
while ((bit3 = GetNextBinaryDigit(&bdr)) >= 0) {
sticky |= bit3;
factor *= 2;
}
value += bit2 & (bit | sticky);
value *= factor;
}
done:;
}
}
}
/* We don't worry about inaccurate numbers for any other base. */
if (s1 == start) {
*dp = 0.0;
*ep = s;
} else {
*dp = negative ? -value : value;
*ep = s1;
}
return JS_TRUE;
}

183
mozilla/js/src/jsnum.h Normal file
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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
*
* The contents of this file are subject to the Netscape Public
* License Version 1.1 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.mozilla.org/NPL/
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express oqr
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* The Original Code is Mozilla Communicator client code, released
* March 31, 1998.
*
* The Initial Developer of the Original Code is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All
* Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the
* terms of the GNU Public License (the "GPL"), in which case the
* provisions of the GPL are applicable instead of those above.
* If you wish to allow use of your version of this file only
* under the terms of the GPL and not to allow others to use your
* version of this file under the NPL, indicate your decision by
* deleting the provisions above and replace them with the notice
* and other provisions required by the GPL. If you do not delete
* the provisions above, a recipient may use your version of this
* file under either the NPL or the GPL.
*/
#ifndef jsnum_h___
#define jsnum_h___
/*
* JS number (IEEE double) interface.
*
* JS numbers are optimistically stored in the top 31 bits of 32-bit integers,
* but floating point literals, results that overflow 31 bits, and division and
* modulus operands and results require a 64-bit IEEE double. These are GC'ed
* and pointed to by 32-bit jsvals on the stack and in object properties.
*
* When a JS number is treated as an object (followed by . or []), the runtime
* wraps it with a JSObject whose valueOf method returns the unwrapped number.
*/
JS_BEGIN_EXTERN_C
#ifdef IS_LITTLE_ENDIAN
#define JSDOUBLE_HI32(x) (((uint32 *)&(x))[1])
#define JSDOUBLE_LO32(x) (((uint32 *)&(x))[0])
#else
#define JSDOUBLE_HI32(x) (((uint32 *)&(x))[0])
#define JSDOUBLE_LO32(x) (((uint32 *)&(x))[1])
#endif
#define JSDOUBLE_HI32_SIGNBIT 0x80000000
#define JSDOUBLE_HI32_EXPMASK 0x7ff00000
#define JSDOUBLE_HI32_MANTMASK 0x000fffff
#define JSDOUBLE_IS_NaN(x) \
((JSDOUBLE_HI32(x) & JSDOUBLE_HI32_EXPMASK) == JSDOUBLE_HI32_EXPMASK && \
(JSDOUBLE_LO32(x) || (JSDOUBLE_HI32(x) & JSDOUBLE_HI32_MANTMASK)))
#define JSDOUBLE_IS_INFINITE(x) \
((JSDOUBLE_HI32(x) & ~JSDOUBLE_HI32_SIGNBIT) == JSDOUBLE_HI32_EXPMASK && \
!JSDOUBLE_LO32(x))
#define JSDOUBLE_IS_FINITE(x) \
((JSDOUBLE_HI32(x) & JSDOUBLE_HI32_EXPMASK) != JSDOUBLE_HI32_EXPMASK)
#define JSDOUBLE_IS_NEGZERO(d) (JSDOUBLE_HI32(d) == JSDOUBLE_HI32_SIGNBIT && \
JSDOUBLE_LO32(d) == 0)
/*
* JSDOUBLE_IS_INT first checks that d is neither NaN nor infinite, to avoid
* raising SIGFPE on platforms such as Alpha Linux, then (only if the cast is
* safe) leaves i as (jsint)d. This also avoid anomalous NaN floating point
* comparisons under MSVC.
*/
#define JSDOUBLE_IS_INT(d, i) (JSDOUBLE_IS_FINITE(d) && !JSDOUBLE_IS_NEGZERO(d) \
&& ((d) == (i = (jsint)(d))))
/* Initialize the Number class, returning its prototype object. */
extern JSObject *
js_InitNumberClass(JSContext *cx, JSObject *obj);
/* GC-allocate a new JS number. */
extern jsdouble *
js_NewDouble(JSContext *cx, jsdouble d);
extern void
js_FinalizeDouble(JSContext *cx, jsdouble *dp);
extern JSBool
js_NewDoubleValue(JSContext *cx, jsdouble d, jsval *rval);
extern JSBool
js_NewNumberValue(JSContext *cx, jsdouble d, jsval *rval);
/* Construct a Number instance that wraps around d. */
extern JSObject *
js_NumberToObject(JSContext *cx, jsdouble d);
/* Convert a number to a GC'ed string. */
extern JSString *
js_NumberToString(JSContext *cx, jsdouble d);
/*
* Convert a value to a number, returning false after reporting any error,
* otherwise returning true with *dp set.
*/
extern JSBool
js_ValueToNumber(JSContext *cx, jsval v, jsdouble *dp);
/*
* Convert a value or a double to an int32, according to the ECMA rules
* for ToInt32.
*/
extern JSBool
js_ValueToECMAInt32(JSContext *cx, jsval v, int32 *ip);
extern JSBool
js_DoubleToECMAInt32(JSContext *cx, jsdouble d, int32 *ip);
/*
* Convert a value or a double to a uint32, according to the ECMA rules
* for ToUint32.
*/
extern JSBool
js_ValueToECMAUint32(JSContext *cx, jsval v, uint32 *ip);
extern JSBool
js_DoubleToECMAUint32(JSContext *cx, jsdouble d, uint32 *ip);
/*
* Convert a value to a number, then to an int32 if it fits by rounding to
* nearest; but failing with an error report if the double is out of range
* or unordered.
*/
extern JSBool
js_ValueToInt32(JSContext *cx, jsval v, int32 *ip);
/*
* Convert a value to a number, then to a uint16 according to the ECMA rules
* for ToUint16.
*/
extern JSBool
js_ValueToUint16(JSContext *cx, jsval v, uint16 *ip);
/*
* Convert a jsdouble to an integral number, stored in a jsdouble.
* If d is NaN, return 0. If d is an infinity, return it without conversion.
*/
extern jsdouble
js_DoubleToInteger(jsdouble d);
/*
* Similar to strtod except that replaces overflows with infinities of the correct
* sign and underflows with zeros of the correct sign. Guaranteed to return the
* closest double number to the given input in dp.
* Also allows inputs of the form [+|-]Infinity, which produce an infinity of the
* appropriate sign. The case of the "Infinity" string must match.
* If the string does not have a number in it, set *ep to s and return 0.0 in dp.
* Return false if out of memory.
*/
extern JSBool
js_strtod(JSContext *cx, const jschar *s, const jschar **ep, jsdouble *dp);
/*
* Similar to strtol except that handles integers of arbitrary size. Guaranteed to
* return the closest double number to the given input when radix is 10 or a power of 2.
* May experience roundoff errors for very large numbers of a different radix.
* If the string does not have a number in it, set *ep to s and return 0.0 in dp.
* Return false if out of memory.
*/
extern JSBool
js_strtointeger(JSContext *cx, const jschar *s, const jschar **ep, jsint radix, jsdouble *dp);
JS_END_EXTERN_C
#endif /* jsnum_h___ */

2876
mozilla/js/src/jsobj.c Normal file

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347
mozilla/js/src/jsobj.h Normal file
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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
*
* The contents of this file are subject to the Netscape Public
* License Version 1.1 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.mozilla.org/NPL/
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express oqr
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* The Original Code is Mozilla Communicator client code, released
* March 31, 1998.
*
* The Initial Developer of the Original Code is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All
* Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the
* terms of the GNU Public License (the "GPL"), in which case the
* provisions of the GPL are applicable instead of those above.
* If you wish to allow use of your version of this file only
* under the terms of the GPL and not to allow others to use your
* version of this file under the NPL, indicate your decision by
* deleting the provisions above and replace them with the notice
* and other provisions required by the GPL. If you do not delete
* the provisions above, a recipient may use your version of this
* file under either the NPL or the GPL.
*/
#ifndef jsobj_h___
#define jsobj_h___
/*
* JS object definitions.
*
* A JS object consists of a possibly-shared object descriptor containing
* ordered property names, called the map; and a dense vector of property
* values, called slots. The map/slot pointer pair is GC'ed, while the map
* is reference counted and the slot vector is malloc'ed.
*/
#include "jshash.h" /* Added by JSIFY */
#include "jsprvtd.h"
#include "jspubtd.h"
JS_BEGIN_EXTERN_C
struct JSObjectMap {
jsrefcount nrefs; /* count of all referencing objects */
JSObjectOps *ops; /* high level object operation vtable */
uint32 nslots; /* length of obj->slots vector */
uint32 freeslot; /* index of next free obj->slots element */
};
/* Shorthand macros for frequently-made calls. */
#if defined JS_THREADSAFE && defined DEBUG
#define OBJ_LOOKUP_PROPERTY(cx,obj,id,objp,propp) \
(obj)->map->ops->lookupProperty(cx,obj,id,objp,propp,__FILE__,__LINE__)
#else
#define OBJ_LOOKUP_PROPERTY(cx,obj,id,objp,propp) \
(obj)->map->ops->lookupProperty(cx,obj,id,objp,propp)
#endif
#define OBJ_DEFINE_PROPERTY(cx,obj,id,value,getter,setter,attrs,propp) \
(obj)->map->ops->defineProperty(cx,obj,id,value,getter,setter,attrs,propp)
#define OBJ_GET_PROPERTY(cx,obj,id,vp) \
(obj)->map->ops->getProperty(cx,obj,id,vp)
#define OBJ_SET_PROPERTY(cx,obj,id,vp) \
(obj)->map->ops->setProperty(cx,obj,id,vp)
#define OBJ_GET_ATTRIBUTES(cx,obj,id,prop,attrsp) \
(obj)->map->ops->getAttributes(cx,obj,id,prop,attrsp)
#define OBJ_SET_ATTRIBUTES(cx,obj,id,prop,attrsp) \
(obj)->map->ops->setAttributes(cx,obj,id,prop,attrsp)
#define OBJ_DELETE_PROPERTY(cx,obj,id,rval) \
(obj)->map->ops->deleteProperty(cx,obj,id,rval)
#define OBJ_DEFAULT_VALUE(cx,obj,hint,vp) \
(obj)->map->ops->defaultValue(cx,obj,hint,vp)
#define OBJ_ENUMERATE(cx,obj,enum_op,statep,idp) \
(obj)->map->ops->enumerate(cx,obj,enum_op,statep,idp)
#define OBJ_CHECK_ACCESS(cx,obj,id,mode,vp,attrsp) \
(obj)->map->ops->checkAccess(cx,obj,id,mode,vp,attrsp)
/* These two are time-optimized to avoid stub calls. */
#define OBJ_THIS_OBJECT(cx,obj) \
((obj)->map->ops->thisObject \
? (obj)->map->ops->thisObject(cx,obj) \
: (obj))
#define OBJ_DROP_PROPERTY(cx,obj,prop) \
((obj)->map->ops->dropProperty \
? (obj)->map->ops->dropProperty(cx,obj,prop) \
: (void)0)
struct JSObject {
JSObjectMap *map;
jsval *slots;
};
#define JSSLOT_PROTO 0
#define JSSLOT_PARENT 1
#define JSSLOT_CLASS 2
#define JSSLOT_PRIVATE 3
#define JSSLOT_START 3
#define JSSLOT_FREE(clasp) (((clasp)->flags & JSCLASS_HAS_PRIVATE) \
? JSSLOT_PRIVATE + 1 \
: JSSLOT_START)
#define JS_INITIAL_NSLOTS 5
#ifdef DEBUG
#define MAP_CHECK_SLOT(map,slot) \
JS_ASSERT((uint32)slot < JS_MAX((map)->nslots, (map)->freeslot))
#define OBJ_CHECK_SLOT(obj,slot) \
MAP_CHECK_SLOT((obj)->map, slot)
#else
#define OBJ_CHECK_SLOT(obj,slot) ((void)0)
#endif
/* Fast macros for accessing obj->slots while obj is locked (if thread-safe). */
#define LOCKED_OBJ_GET_SLOT(obj,slot) \
(OBJ_CHECK_SLOT(obj, slot), (obj)->slots[slot])
#define LOCKED_OBJ_SET_SLOT(obj,slot,value) \
(OBJ_CHECK_SLOT(obj, slot), (obj)->slots[slot] = (value))
#define LOCKED_OBJ_GET_PROTO(obj) \
JSVAL_TO_OBJECT(LOCKED_OBJ_GET_SLOT(obj, JSSLOT_PROTO))
#define LOCKED_OBJ_GET_CLASS(obj) \
((JSClass *)JSVAL_TO_PRIVATE(LOCKED_OBJ_GET_SLOT(obj, JSSLOT_CLASS)))
#ifdef JS_THREADSAFE
/* Thread-safe functions and wrapper macros for accessing obj->slots. */
#define OBJ_GET_SLOT(cx,obj,slot) \
(OBJ_CHECK_SLOT(obj, slot), js_GetSlotWhileLocked(cx, obj, slot))
#define OBJ_SET_SLOT(cx,obj,slot,value) \
(OBJ_CHECK_SLOT(obj, slot), js_SetSlotWhileLocked(cx, obj, slot, value))
#else /* !JS_THREADSAFE */
#define OBJ_GET_SLOT(cx,obj,slot) LOCKED_OBJ_GET_SLOT(obj,slot)
#define OBJ_SET_SLOT(cx,obj,slot,value) LOCKED_OBJ_SET_SLOT(obj,slot,value)
#endif /* !JS_THREADSAFE */
/* Thread-safe proto, parent, and class access macros. */
#define OBJ_GET_PROTO(cx,obj) \
JSVAL_TO_OBJECT(OBJ_GET_SLOT(cx, obj, JSSLOT_PROTO))
#define OBJ_SET_PROTO(cx,obj,proto) \
OBJ_SET_SLOT(cx, obj, JSSLOT_PROTO, OBJECT_TO_JSVAL(proto))
#define OBJ_GET_PARENT(cx,obj) \
JSVAL_TO_OBJECT(OBJ_GET_SLOT(cx, obj, JSSLOT_PARENT))
#define OBJ_SET_PARENT(cx,obj,parent) \
OBJ_SET_SLOT(cx, obj, JSSLOT_PARENT, OBJECT_TO_JSVAL(parent))
#define OBJ_GET_CLASS(cx,obj) \
((JSClass *)JSVAL_TO_PRIVATE(OBJ_GET_SLOT(cx, obj, JSSLOT_CLASS)))
/* Test whether a map or object is native. */
#define MAP_IS_NATIVE(map) \
((map)->ops == &js_ObjectOps || \
((map)->ops && (map)->ops->newObjectMap == js_ObjectOps.newObjectMap))
#define OBJ_IS_NATIVE(obj) MAP_IS_NATIVE((obj)->map)
extern JS_FRIEND_DATA(JSObjectOps) js_ObjectOps;
extern JS_FRIEND_DATA(JSObjectOps) js_WithObjectOps;
extern JSClass js_ObjectClass;
extern JSClass js_WithClass;
struct JSSharpObjectMap {
jsrefcount depth;
jsatomid sharpgen;
JSHashTable *table;
};
#define SHARP_BIT 1
#define IS_SHARP(he) ((jsatomid)(he)->value & SHARP_BIT)
#define MAKE_SHARP(he) ((he)->value = (void*)((jsatomid)(he)->value|SHARP_BIT))
extern JSHashEntry *
js_EnterSharpObject(JSContext *cx, JSObject *obj, JSIdArray **idap,
jschar **sp);
extern void
js_LeaveSharpObject(JSContext *cx, JSIdArray **idap);
extern JSBool
js_obj_toSource(JSContext *cx, JSObject *obj, uintN argc, jsval *argv,
jsval *rval);
extern JSBool
js_obj_toString(JSContext *cx, JSObject *obj, uintN argc, jsval *argv,
jsval *rval);
extern JSObject *
js_InitObjectClass(JSContext *cx, JSObject *obj);
extern void
js_InitObjectMap(JSObjectMap *map, jsrefcount nrefs, JSObjectOps *ops,
JSClass *clasp);
extern JSObjectMap *
js_NewObjectMap(JSContext *cx, jsrefcount nrefs, JSObjectOps *ops,
JSClass *clasp, JSObject *obj);
extern void
js_DestroyObjectMap(JSContext *cx, JSObjectMap *map);
extern JSObjectMap *
js_HoldObjectMap(JSContext *cx, JSObjectMap *map);
extern JSObjectMap *
js_DropObjectMap(JSContext *cx, JSObjectMap *map, JSObject *obj);
extern JSObject *
js_NewObject(JSContext *cx, JSClass *clasp, JSObject *proto, JSObject *parent);
extern JSObject *
js_ConstructObject(JSContext *cx, JSClass *clasp, JSObject *proto,
JSObject *parent);
extern void
js_FinalizeObject(JSContext *cx, JSObject *obj);
extern JSBool
js_AllocSlot(JSContext *cx, JSObject *obj, uint32 *slotp);
extern void
js_FreeSlot(JSContext *cx, JSObject *obj, uint32 slot);
/*
* On error, return false. On success, if propp is non-null, return true with
* obj locked and with a held property in *propp; if propp is null, return true
* but release obj's lock first. Therefore all callers who pass non-null propp
* result parameters must later call OBJ_DROP_PROPERTY(cx, obj, *propp) both to
* drop the held property, and to release the lock on obj.
*/
extern JSBool
js_DefineProperty(JSContext *cx, JSObject *obj, jsid id, jsval value,
JSPropertyOp getter, JSPropertyOp setter, uintN attrs,
JSProperty **propp);
/*
* Unlike js_DefineProperty, propp must be non-null. On success, and if id was
* found, return true with *objp non-null and locked, and with a held property
* stored in *propp. If successful but id was not found, return true with both
* *objp and *propp null. Therefore all callers who receive a non-null *propp
* must later call OBJ_DROP_PROPERTY(cx, *objp, *propp).
*/
#if defined JS_THREADSAFE && defined DEBUG
extern JS_FRIEND_API(JSBool)
_js_LookupProperty(JSContext *cx, JSObject *obj, jsid id, JSObject **objp,
JSProperty **propp, const char *file, uintN line);
#define js_LookupProperty(cx,obj,id,objp,propp) \
_js_LookupProperty(cx,obj,id,objp,propp,__FILE__,__LINE__)
#else
extern JS_FRIEND_API(JSBool)
js_LookupProperty(JSContext *cx, JSObject *obj, jsid id, JSObject **objp,
JSProperty **propp);
#endif
extern JS_FRIEND_API(JSBool)
js_FindProperty(JSContext *cx, jsid id, JSObject **objp, JSObject **pobjp,
JSProperty **propp);
extern JSBool
js_FindVariable(JSContext *cx, jsid id, JSObject **objp, JSObject **pobjp,
JSProperty **propp);
extern JSObject *
js_FindVariableScope(JSContext *cx, JSFunction **funp);
extern JSBool
js_GetProperty(JSContext *cx, JSObject *obj, jsid id, jsval *vp);
extern JSBool
js_SetProperty(JSContext *cx, JSObject *obj, jsid id, jsval *vp);
extern JSBool
js_GetAttributes(JSContext *cx, JSObject *obj, jsid id, JSProperty *prop,
uintN *attrsp);
extern JSBool
js_SetAttributes(JSContext *cx, JSObject *obj, jsid id, JSProperty *prop,
uintN *attrsp);
extern JSBool
js_DeleteProperty(JSContext *cx, JSObject *obj, jsid id, jsval *rval);
extern JSBool
js_DefaultValue(JSContext *cx, JSObject *obj, JSType hint, jsval *vp);
extern JSBool
js_Enumerate(JSContext *cx, JSObject *obj, JSIterateOp enum_op,
jsval *statep, jsid *idp);
extern JSBool
js_CheckAccess(JSContext *cx, JSObject *obj, jsid id, JSAccessMode mode,
jsval *vp, uintN *attrsp);
extern JSBool
js_Call(JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval);
extern JSBool
js_Construct(JSContext *cx, JSObject *obj, uintN argc, jsval *argv,
jsval *rval);
extern JSBool
js_HasInstance(JSContext *cx, JSObject *obj, jsval v, JSBool *bp);
extern JSBool
js_IsDelegate(JSContext *cx, JSObject *obj, jsval v, JSBool *bp);
extern JSBool
js_GetClassPrototype(JSContext *cx, const char *name, JSObject **protop);
extern JSBool
js_SetClassPrototype(JSContext *cx, JSObject *ctor, JSObject *proto,
uintN attrs);
extern JSBool
js_ValueToObject(JSContext *cx, jsval v, JSObject **objp);
extern JSObject *
js_ValueToNonNullObject(JSContext *cx, jsval v);
extern JSBool
js_TryValueOf(JSContext *cx, JSObject *obj, JSType type, jsval *rval);
extern JSBool
js_TryMethod(JSContext *cx, JSObject *obj, JSAtom *atom,
uintN argc, jsval *argv, jsval *rval);
extern JSBool
js_XDRObject(JSXDRState *xdr, JSObject **objp);
extern JSIdArray *
js_NewIdArray(JSContext *cx, jsint length);
extern JSIdArray *
js_GrowIdArray(JSContext *cx, JSIdArray *ida, jsint length);
JS_END_EXTERN_C
#endif /* jsobj_h___ */

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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
*
* The contents of this file are subject to the Netscape Public
* License Version 1.1 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.mozilla.org/NPL/
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express oqr
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* The Original Code is Mozilla Communicator client code, released
* March 31, 1998.
*
* The Initial Developer of the Original Code is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All
* Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the
* terms of the GNU Public License (the "GPL"), in which case the
* provisions of the GPL are applicable instead of those above.
* If you wish to allow use of your version of this file only
* under the terms of the GPL and not to allow others to use your
* version of this file under the NPL, indicate your decision by
* deleting the provisions above and replace them with the notice
* and other provisions required by the GPL. If you do not delete
* the provisions above, a recipient may use your version of this
* file under either the NPL or the GPL.
*/
#ifndef jsopcode_h___
#define jsopcode_h___
/*
* JS bytecode definitions.
*/
#include <stddef.h>
#include "jsprvtd.h"
#include "jspubtd.h"
JS_BEGIN_EXTERN_C
/*
* JS operation bytecodes.
*/
typedef enum JSOp {
#define OPDEF(op,val,name,token,length,nuses,ndefs,prec,format) \
op = val,
#include "jsopcode.tbl"
#undef OPDEF
JSOP_LIMIT
} JSOp;
/*
* JS bytecode formats.
*/
#define JOF_BYTE 0 /* single bytecode, no immediates */
#define JOF_JUMP 1 /* signed 16-bit jump offset immediate */
#define JOF_CONST 2 /* unsigned 16-bit constant pool index */
#define JOF_UINT16 3 /* unsigned 16-bit immediate operand */
#define JOF_TABLESWITCH 4 /* table switch */
#define JOF_LOOKUPSWITCH 5 /* lookup switch */
#define JOF_QARG 6 /* quickened get/set function argument ops */
#define JOF_QVAR 7 /* quickened get/set local variable ops */
#define JOF_TYPEMASK 0x000f /* mask for above immediate types */
#define JOF_NAME 0x0010 /* name operation */
#define JOF_PROP 0x0020 /* obj.prop operation */
#define JOF_ELEM 0x0030 /* obj[index] operation */
#define JOF_MODEMASK 0x0030 /* mask for above addressing modes */
#define JOF_SET 0x0040 /* set (i.e., assignment) operation */
#define JOF_DEL 0x0080 /* delete operation */
#define JOF_DEC 0x0100 /* decrement (--, not ++) opcode */
#define JOF_INC 0x0200 /* increment (++, not --) opcode */
#define JOF_INCDEC 0x0300 /* increment or decrement opcode */
#define JOF_POST 0x0400 /* postorder increment or decrement */
#define JOF_IMPORT 0x0800 /* import property op */
#define JOF_FOR2 0x1000 /* new for/in loop bytecodes */
/*
* Immediate operand getters, setters, and bounds.
*/
#define JUMP_OFFSET_LEN 2
#define JUMP_OFFSET_HI(off) ((jsbytecode)((off) >> 8))
#define JUMP_OFFSET_LO(off) ((jsbytecode)(off))
#define GET_JUMP_OFFSET(pc) ((int16)(((pc)[1] << 8) | (pc)[2]))
#define SET_JUMP_OFFSET(pc,off) ((pc)[1] = JUMP_OFFSET_HI(off), \
(pc)[2] = JUMP_OFFSET_LO(off))
#define JUMP_OFFSET_MIN ((int16)0x8000)
#define JUMP_OFFSET_MAX ((int16)0x7fff)
#define ATOM_INDEX_LEN 2
#define ATOM_INDEX_HI(index) ((jsbytecode)((index) >> 8))
#define ATOM_INDEX_LO(index) ((jsbytecode)(index))
#define GET_ATOM_INDEX(pc) ((jsatomid)(((pc)[1] << 8) | (pc)[2]))
#define SET_ATOM_INDEX(pc,index)((pc)[1] = ATOM_INDEX_HI(index), \
(pc)[2] = ATOM_INDEX_LO(index))
#define GET_ATOM(cx,script,pc) js_GetAtom((cx), &(script)->atomMap, \
GET_ATOM_INDEX(pc))
#define ATOM_INDEX_LIMIT_LOG2 16
#define ATOM_INDEX_LIMIT ((uint32)1 << ATOM_INDEX_LIMIT_LOG2)
#define ARGC_HI(argc) ((jsbytecode)((argc) >> 8))
#define ARGC_LO(argc) ((jsbytecode)(argc))
#define GET_ARGC(pc) ((uintN)(((pc)[1] << 8) | (pc)[2]))
#define ARGC_LIMIT ((uint32)1 << 16)
/* Synonyms for quick JOF_QARG and JOF_QVAR bytecodes. */
#define GET_ARGNO(pc) GET_ARGC(pc)
#define SET_ARGNO(pc,argno) SET_JUMP_OFFSET(pc,argno)
#define GET_VARNO(pc) GET_ARGC(pc)
#define SET_VARNO(pc,varno) SET_JUMP_OFFSET(pc,varno)
struct JSCodeSpec {
const char *name; /* JS bytecode name */
const char *token; /* JS source literal or null */
int8 length; /* length including opcode byte */
int8 nuses; /* arity, -1 if variadic */
int8 ndefs; /* number of stack results */
uint8 prec; /* operator precedence */
uint32 format; /* immediate operand format */
};
extern char js_const_str[];
extern char js_var_str[];
extern char js_function_str[];
extern char js_in_str[];
extern char js_instanceof_str[];
extern char js_new_str[];
extern char js_delete_str[];
extern char js_typeof_str[];
extern char js_void_str[];
extern char js_null_str[];
extern char js_this_str[];
extern char js_false_str[];
extern char js_true_str[];
extern JSCodeSpec js_CodeSpec[];
extern uintN js_NumCodeSpecs;
extern jschar js_EscapeMap[];
/*
* Return a GC'ed string containing the chars in str, with any non-printing
* chars or quotes (' or " as specified by the quote argument) escaped, and
* with the quote character at the beginning and end of the result string.
*/
extern JSString *
js_QuoteString(JSContext *cx, JSString *str, jschar quote);
/*
* JSPrinter operations, for printf style message formatting. The return
* value from js_GetPrinterOutput() is the printer's cumulative output, in
* a GC'ed string.
*/
extern JSPrinter *
js_NewPrinter(JSContext *cx, const char *name, uintN indent, JSBool pretty);
extern void
js_DestroyPrinter(JSPrinter *jp);
extern JSString *
js_GetPrinterOutput(JSPrinter *jp);
extern int
js_printf(JSPrinter *jp, const char *format, ...);
extern JSBool
js_puts(JSPrinter *jp, const char *s);
#ifdef DEBUG
/*
* Disassemblers, for debugging only.
*/
#include <stdio.h>
extern JS_FRIEND_API(void)
js_Disassemble(JSContext *cx, JSScript *script, JSBool lines, FILE *fp);
extern JS_FRIEND_API(uintN)
js_Disassemble1(JSContext *cx, JSScript *script, jsbytecode *pc, uintN loc,
JSBool lines, FILE *fp);
#endif /* DEBUG */
/*
* Decompilers, for script, function, and expression pretty-printing.
*/
extern JSBool
js_DecompileCode(JSPrinter *jp, JSScript *script, jsbytecode *pc, uintN len);
extern JSBool
js_DecompileScript(JSPrinter *jp, JSScript *script);
extern JSBool
js_DecompileFunctionBody(JSPrinter *jp, JSFunction *fun);
extern JSBool
js_DecompileFunction(JSPrinter *jp, JSFunction *fun);
/*
* Find the source expression that resulted in v, and return a new string
* containing it. Fall back on v's string conversion if we can't find the
* bytecode that generated and pushed v on the operand stack. Don't look
* for v on the stack if checkStack is false.
*/
extern JSString *
js_DecompileValueGenerator(JSContext *cx, JSBool checkStack, jsval v,
JSString *fallback);
JS_END_EXTERN_C
#endif /* jsopcode_h___ */

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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
*
* The contents of this file are subject to the Netscape Public
* License Version 1.1 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.mozilla.org/NPL/
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express oqr
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* The Original Code is Mozilla Communicator client code, released
* March 31, 1998.
*
* The Initial Developer of the Original Code is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All
* Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the
* terms of the GNU Public License (the "GPL"), in which case the
* provisions of the GPL are applicable instead of those above.
* If you wish to allow use of your version of this file only
* under the terms of the GPL and not to allow others to use your
* version of this file under the NPL, indicate your decision by
* deleting the provisions above and replace them with the notice
* and other provisions required by the GPL. If you do not delete
* the provisions above, a recipient may use your version of this
* file under either the NPL or the GPL.
*/
/*
* JavaScript operation bytecodes.
*
* Includers must define an OPDEF macro of the following form:
*
* #define OPDEF(op,val,name,image,length,nuses,ndefs,prec,format) ...
*
* Selected arguments can be expanded in initializers. The op argument is
* expanded followed by comma in the JSOp enum (jsopcode.h), e.g. The value
* field must be dense for now, because jsopcode.c uses an OPDEF() expansion
* inside the js_CodeSpec[] initializer.
*
* Field Description
* op Bytecode name, which is the JSOp enumerator name
* value Bytecode value, which is the JSOp enumerator value
* name C string containing name for disassembler
* image C string containing "image" for pretty-printer, null if ugly
* length Number of bytes including any immediate operands
* nuses Number of stack slots consumed by bytecode, -1 if variadic
* ndefs Number of stack slots produced by bytecode
* prec Operator precedence, zero if not an operator
* format Bytecode plus immediate operand encoding format
*
* This file is best viewed with 116 columns:
01234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345
*/
/* legend: op val name image len use def prec format */
/* Permanently-assigned bytecodes. */
OPDEF(JSOP_NOP, 0, "nop", NULL, 1, 0, 0, 0, JOF_BYTE)
OPDEF(JSOP_PUSH, 1, "push", NULL, 1, 0, 1, 0, JOF_BYTE)
OPDEF(JSOP_POPV, 2, "popv", NULL, 1, 1, 0, 0, JOF_BYTE)
OPDEF(JSOP_ENTERWITH, 3, "enterwith", NULL, 1, 1, 1, 0, JOF_BYTE)
OPDEF(JSOP_LEAVEWITH, 4, "leavewith", NULL, 1, 1, 0, 0, JOF_BYTE)
OPDEF(JSOP_RETURN, 5, "return", NULL, 1, 1, 0, 0, JOF_BYTE)
OPDEF(JSOP_GOTO, 6, "goto", NULL, 3, 0, 0, 0, JOF_JUMP)
OPDEF(JSOP_IFEQ, 7, "ifeq", NULL, 3, 1, 0, 0, JOF_JUMP)
OPDEF(JSOP_IFNE, 8, "ifne", NULL, 3, 1, 0, 0, JOF_JUMP)
OPDEF(JSOP_FORNAME, 9, "forname", NULL, 3, 1, 1, 0, JOF_CONST|JOF_NAME|JOF_SET)
OPDEF(JSOP_FORPROP, 10, "forprop", NULL, 3, 2, 1, 0, JOF_CONST|JOF_PROP|JOF_SET)
OPDEF(JSOP_FORELEM, 11, "forelem", NULL, 1, 3, 1, 0, JOF_BYTE |JOF_ELEM|JOF_SET)
OPDEF(JSOP_DUP, 12, "dup", NULL, 1, 1, 2, 0, JOF_BYTE)
OPDEF(JSOP_DUP2, 13, "dup2", NULL, 1, 2, 4, 0, JOF_BYTE)
OPDEF(JSOP_SETCONST, 14, "setconst", NULL, 3, 1, 1, 1, JOF_CONST|JOF_NAME|JOF_SET)
OPDEF(JSOP_BITOR, 15, "bitor", "|", 1, 2, 1, 2, JOF_BYTE)
OPDEF(JSOP_BITXOR, 16, "bitxor", "^", 1, 2, 1, 3, JOF_BYTE)
OPDEF(JSOP_BITAND, 17, "bitand", "&", 1, 2, 1, 4, JOF_BYTE)
OPDEF(JSOP_EQ, 18, "eq", "==", 1, 2, 1, 5, JOF_BYTE)
OPDEF(JSOP_NE, 19, "ne", "!=", 1, 2, 1, 5, JOF_BYTE)
OPDEF(JSOP_LT, 20, "lt", "<", 1, 2, 1, 6, JOF_BYTE)
OPDEF(JSOP_LE, 21, "le", "<=", 1, 2, 1, 6, JOF_BYTE)
OPDEF(JSOP_GT, 22, "gt", ">", 1, 2, 1, 6, JOF_BYTE)
OPDEF(JSOP_GE, 23, "ge", ">=", 1, 2, 1, 6, JOF_BYTE)
OPDEF(JSOP_LSH, 24, "lsh", "<<", 1, 2, 1, 7, JOF_BYTE)
OPDEF(JSOP_RSH, 25, "rsh", ">>", 1, 2, 1, 7, JOF_BYTE)
OPDEF(JSOP_URSH, 26, "ursh", ">>>", 1, 2, 1, 7, JOF_BYTE)
OPDEF(JSOP_ADD, 27, "add", "+", 1, 2, 1, 8, JOF_BYTE)
OPDEF(JSOP_SUB, 28, "sub", "-", 1, 2, 1, 8, JOF_BYTE)
OPDEF(JSOP_MUL, 29, "mul", "*", 1, 2, 1, 9, JOF_BYTE)
OPDEF(JSOP_DIV, 30, "div", "/", 1, 2, 1, 9, JOF_BYTE)
OPDEF(JSOP_MOD, 31, "mod", "%", 1, 2, 1, 9, JOF_BYTE)
OPDEF(JSOP_NOT, 32, "not", "!", 1, 1, 1, 10, JOF_BYTE)
OPDEF(JSOP_BITNOT, 33, "bitnot", "~", 1, 1, 1, 10, JOF_BYTE)
OPDEF(JSOP_NEG, 34, "neg", "-", 1, 1, 1, 10, JOF_BYTE)
OPDEF(JSOP_NEW, 35, js_new_str, NULL, 3, -1, 1, 10, JOF_UINT16)
OPDEF(JSOP_DELNAME, 36, "delname", NULL, 3, 0, 1, 10, JOF_CONST|JOF_NAME|JOF_DEL)
OPDEF(JSOP_DELPROP, 37, "delprop", NULL, 3, 1, 1, 10, JOF_CONST|JOF_PROP|JOF_DEL)
OPDEF(JSOP_DELELEM, 38, "delelem", NULL, 1, 2, 1, 10, JOF_BYTE |JOF_ELEM|JOF_DEL)
OPDEF(JSOP_TYPEOF, 39, js_typeof_str,NULL, 1, 1, 1, 10, JOF_BYTE)
OPDEF(JSOP_VOID, 40, js_void_str, NULL, 1, 1, 1, 10, JOF_BYTE)
OPDEF(JSOP_INCNAME, 41, "incname", NULL, 3, 0, 1, 10, JOF_CONST|JOF_NAME|JOF_INC)
OPDEF(JSOP_INCPROP, 42, "incprop", NULL, 3, 1, 1, 10, JOF_CONST|JOF_PROP|JOF_INC)
OPDEF(JSOP_INCELEM, 43, "incelem", NULL, 1, 2, 1, 10, JOF_BYTE |JOF_ELEM|JOF_INC)
OPDEF(JSOP_DECNAME, 44, "decname", NULL, 3, 0, 1, 10, JOF_CONST|JOF_NAME|JOF_DEC)
OPDEF(JSOP_DECPROP, 45, "decprop", NULL, 3, 1, 1, 10, JOF_CONST|JOF_PROP|JOF_DEC)
OPDEF(JSOP_DECELEM, 46, "decelem", NULL, 1, 2, 1, 10, JOF_BYTE |JOF_ELEM|JOF_DEC)
OPDEF(JSOP_NAMEINC, 47, "nameinc", NULL, 3, 0, 1, 10, JOF_CONST|JOF_NAME|JOF_INC|JOF_POST)
OPDEF(JSOP_PROPINC, 48, "propinc", NULL, 3, 1, 1, 10, JOF_CONST|JOF_PROP|JOF_INC|JOF_POST)
OPDEF(JSOP_ELEMINC, 49, "eleminc", NULL, 1, 2, 1, 10, JOF_BYTE |JOF_ELEM|JOF_INC|JOF_POST)
OPDEF(JSOP_NAMEDEC, 50, "namedec", NULL, 3, 0, 1, 10, JOF_CONST|JOF_NAME|JOF_DEC|JOF_POST)
OPDEF(JSOP_PROPDEC, 51, "propdec", NULL, 3, 1, 1, 10, JOF_CONST|JOF_PROP|JOF_DEC|JOF_POST)
OPDEF(JSOP_ELEMDEC, 52, "elemdec", NULL, 1, 2, 1, 10, JOF_BYTE |JOF_ELEM|JOF_DEC|JOF_POST)
OPDEF(JSOP_GETPROP, 53, "getprop", NULL, 3, 1, 1, 11, JOF_CONST|JOF_PROP)
OPDEF(JSOP_SETPROP, 54, "setprop", NULL, 3, 2, 1, 1, JOF_CONST|JOF_PROP|JOF_SET)
OPDEF(JSOP_GETELEM, 55, "getelem", NULL, 1, 2, 1, 11, JOF_BYTE |JOF_ELEM)
OPDEF(JSOP_SETELEM, 56, "setelem", NULL, 1, 3, 1, 1, JOF_BYTE |JOF_ELEM|JOF_SET)
OPDEF(JSOP_PUSHOBJ, 57, "pushobj", NULL, 1, 0, 1, 0, JOF_BYTE)
OPDEF(JSOP_CALL, 58, "call", NULL, 3, -1, 1, 11, JOF_UINT16)
OPDEF(JSOP_NAME, 59, "name", NULL, 3, 0, 1, 12, JOF_CONST|JOF_NAME)
OPDEF(JSOP_NUMBER, 60, "number", NULL, 3, 0, 1, 12, JOF_CONST)
OPDEF(JSOP_STRING, 61, "string", NULL, 3, 0, 1, 12, JOF_CONST)
OPDEF(JSOP_ZERO, 62, "zero", "0", 1, 0, 1, 12, JOF_BYTE)
OPDEF(JSOP_ONE, 63, "one", "1", 1, 0, 1, 12, JOF_BYTE)
OPDEF(JSOP_NULL, 64, js_null_str, js_null_str, 1, 0, 1, 12, JOF_BYTE)
OPDEF(JSOP_THIS, 65, js_this_str, js_this_str, 1, 0, 1, 12, JOF_BYTE)
OPDEF(JSOP_FALSE, 66, js_false_str, js_false_str, 1, 0, 1, 12, JOF_BYTE)
OPDEF(JSOP_TRUE, 67, js_true_str, js_true_str, 1, 0, 1, 12, JOF_BYTE)
OPDEF(JSOP_OR, 68, "or", NULL, 3, 1, 0, 0, JOF_JUMP)
OPDEF(JSOP_AND, 69, "and", NULL, 3, 1, 0, 0, JOF_JUMP)
/* The switch bytecodes have variable length. */
OPDEF(JSOP_TABLESWITCH, 70, "tableswitch", NULL, -1, 1, 0, 0, JOF_TABLESWITCH)
OPDEF(JSOP_LOOKUPSWITCH, 71, "lookupswitch", NULL, -1, 1, 0, 0, JOF_LOOKUPSWITCH)
/* New, infallible/transitive identity ops. */
OPDEF(JSOP_NEW_EQ, 72, "eq", NULL, 1, 2, 1, 5, JOF_BYTE)
OPDEF(JSOP_NEW_NE, 73, "ne", NULL, 1, 2, 1, 5, JOF_BYTE)
/* Lexical closure constructor. */
OPDEF(JSOP_CLOSURE, 74, "closure", NULL, 3, 0, 0, 0, JOF_CONST)
/* Export and import ops. */
OPDEF(JSOP_EXPORTALL, 75, "exportall", NULL, 1, 0, 0, 0, JOF_BYTE)
OPDEF(JSOP_EXPORTNAME,76, "exportname", NULL, 3, 0, 0, 0, JOF_CONST|JOF_NAME)
OPDEF(JSOP_IMPORTALL, 77, "importall", NULL, 1, 1, 0, 0, JOF_BYTE)
OPDEF(JSOP_IMPORTPROP,78, "importprop", NULL, 3, 1, 0, 0, JOF_CONST|JOF_PROP|JOF_IMPORT)
OPDEF(JSOP_IMPORTELEM,79, "importelem", NULL, 1, 2, 0, 0, JOF_BYTE |JOF_ELEM|JOF_IMPORT)
/* Push object literal. */
OPDEF(JSOP_OBJECT, 80, "object", NULL, 3, 0, 1, 12, JOF_CONST)
/* Pop value and discard it. */
OPDEF(JSOP_POP, 81, "pop", NULL, 1, 1, 0, 0, JOF_BYTE)
/* Convert value to number, for unary +. */
OPDEF(JSOP_POS, 82, "pos", "+", 1, 1, 1, 10, JOF_BYTE)
/* Trap into debugger for breakpoint, etc. */
OPDEF(JSOP_TRAP, 83, "trap", NULL, 1, 0, 0, 0, JOF_BYTE)
/* Fast get/set ops for function arguments and local variables. */
OPDEF(JSOP_GETARG, 84, "getarg", NULL, 3, 0, 1, 12, JOF_QARG |JOF_NAME)
OPDEF(JSOP_SETARG, 85, "setarg", NULL, 3, 1, 1, 1, JOF_QARG |JOF_NAME|JOF_SET)
OPDEF(JSOP_GETVAR, 86, "getvar", NULL, 3, 0, 1, 12, JOF_QVAR |JOF_NAME)
OPDEF(JSOP_SETVAR, 87, "setvar", NULL, 3, 1, 1, 1, JOF_QVAR |JOF_NAME|JOF_SET)
/* Push unsigned 16-bit int constant. */
OPDEF(JSOP_UINT16, 88, "uint16", NULL, 3, 0, 1, 12, JOF_UINT16)
/* Object and array literal support. */
OPDEF(JSOP_NEWINIT, 89, "newinit", NULL, 1, 2, 1, 10, JOF_BYTE)
OPDEF(JSOP_ENDINIT, 90, "endinit", NULL, 1, 0, 0, 0, JOF_BYTE)
OPDEF(JSOP_INITPROP, 91, "initprop", NULL, 3, 1, 0, 0, JOF_CONST|JOF_PROP)
OPDEF(JSOP_INITELEM, 92, "initelem", NULL, 1, 2, 0, 0, JOF_BYTE |JOF_ELEM)
OPDEF(JSOP_DEFSHARP, 93, "defsharp", NULL, 3, 0, 0, 0, JOF_UINT16)
OPDEF(JSOP_USESHARP, 94, "usesharp", NULL, 3, 0, 1, 0, JOF_UINT16)
/* Fast inc/dec ops for args and local vars. */
OPDEF(JSOP_INCARG, 95, "incarg", NULL, 3, 0, 1, 10, JOF_QARG |JOF_NAME|JOF_INC)
OPDEF(JSOP_INCVAR, 96, "incvar", NULL, 3, 0, 1, 10, JOF_QVAR |JOF_NAME|JOF_INC)
OPDEF(JSOP_DECARG, 97, "decarg", NULL, 3, 0, 1, 10, JOF_QARG |JOF_NAME|JOF_DEC)
OPDEF(JSOP_DECVAR, 98, "decvar", NULL, 3, 0, 1, 10, JOF_QVAR |JOF_NAME|JOF_DEC)
OPDEF(JSOP_ARGINC, 99, "arginc", NULL, 3, 0, 1, 10, JOF_QARG |JOF_NAME|JOF_INC|JOF_POST)
OPDEF(JSOP_VARINC, 100,"varinc", NULL, 3, 0, 1, 10, JOF_QVAR |JOF_NAME|JOF_INC|JOF_POST)
OPDEF(JSOP_ARGDEC, 101,"argdec", NULL, 3, 0, 1, 10, JOF_QARG |JOF_NAME|JOF_DEC|JOF_POST)
OPDEF(JSOP_VARDEC, 102,"vardec", NULL, 3, 0, 1, 10, JOF_QVAR |JOF_NAME|JOF_DEC|JOF_POST)
/* ECMA-compliant for/in ops. */
OPDEF(JSOP_TOOBJECT, 103,"toobject", NULL, 1, 1, 1, 0, JOF_BYTE)
OPDEF(JSOP_FORNAME2, 104,"forname2", NULL, 3, 0, 1, 0, JOF_CONST|JOF_NAME|JOF_SET|JOF_FOR2)
OPDEF(JSOP_FORPROP2, 105,"forprop2", NULL, 3, 1, 1, 0, JOF_CONST|JOF_PROP|JOF_SET|JOF_FOR2)
OPDEF(JSOP_FORELEM2, 106,"forelem2", NULL, 1, 2, 4, 0, JOF_BYTE |JOF_ELEM|JOF_FOR2)
OPDEF(JSOP_POP2, 107,"pop2", NULL, 1, 2, 0, 0, JOF_BYTE)
/* ECMA-complaint assignment ops. */
OPDEF(JSOP_BINDNAME, 108,"bindname", NULL, 3, 0, 1, 0, JOF_CONST|JOF_NAME)
OPDEF(JSOP_SETNAME, 109,"setname", NULL, 3, 2, 1, 1, JOF_CONST|JOF_NAME|JOF_SET)
/* Exception handling ops. */
OPDEF(JSOP_THROW, 110,"throw", NULL, 1, 1, 0, 0, JOF_BYTE)
/* 'in' and 'instanceof' ops. */
OPDEF(JSOP_IN, 111,js_in_str, js_in_str, 1, 2, 1, 6, JOF_BYTE)
OPDEF(JSOP_INSTANCEOF,112,js_instanceof_str,js_instanceof_str,1,2,1,6,JOF_BYTE)
/* debugger op */
OPDEF(JSOP_DEBUGGER, 113,"debugger", NULL, 1, 0, 0, 0, JOF_BYTE)
/* gosub/retsub for finally handling */
OPDEF(JSOP_GOSUB, 114,"gosub", NULL, 3, 0, 1, 0, JOF_JUMP)
OPDEF(JSOP_RETSUB, 115,"retsub", NULL, 1, 1, 0, 0, JOF_BYTE)
/* more exception handling ops */
OPDEF(JSOP_EXCEPTION, 116,"exception", NULL, 1, 0, 1, 0, JOF_BYTE)
OPDEF(JSOP_SETSP, 117,"setsp", NULL, 3, 0, 0, 0, JOF_UINT16)
/*
* ECMA-compliant switch statement ops.
* CONDSWITCH is a decompilable NOP; CASE is ===, POP, jump if true, re-push
* lval if false; and DEFAULT is POP lval and GOTO.
*/
OPDEF(JSOP_CONDSWITCH,118,"condswitch", NULL, 1, 0, 0, 0, JOF_BYTE)
OPDEF(JSOP_CASE, 119,"case", NULL, 3, 1, 0, 0, JOF_JUMP)
OPDEF(JSOP_DEFAULT, 120,"default", NULL, 3, 1, 0, 0, JOF_JUMP)
/*
* ECMA-compliant call to eval op
*/
OPDEF(JSOP_EVAL, 121,"eval", NULL, 3, -1, 1, 11, JOF_UINT16)
/*
* ECMA-compliant helper for 'for (x[i] in o)' loops.
*/
OPDEF(JSOP_ENUMELEM, 122,"enumelem", NULL, 1, 3, 0, 1, JOF_BYTE |JOF_ELEM|JOF_SET)
/*
* Getter and setter prefix bytecodes. These modify the next bytecode, either
* an assignment or a property initializer code, which then defines a property
* getter or setter.
*/
OPDEF(JSOP_GETTER, 123,js_getter_str,js_getter_str,1, 0, 0, 0, JOF_BYTE)
OPDEF(JSOP_SETTER, 124,js_setter_str,js_setter_str,1, 0, 0, 0, JOF_BYTE)
/*
* Prolog bytecodes for defining function, var, and const names.
*/
OPDEF(JSOP_DEFFUN, 125,"deffun", NULL, 3, 0, 0, 0, JOF_CONST|JOF_SET)
OPDEF(JSOP_DEFCONST, 126,"defconst", NULL, 3, 0, 0, 0, JOF_CONST|JOF_NAME|JOF_SET)
OPDEF(JSOP_DEFVAR, 127,"defvar", NULL, 3, 0, 0, 0, JOF_CONST|JOF_NAME)
/* Auto-clone (if needed due to re-parenting) and push an anonymous function. */
OPDEF(JSOP_ANONFUNOBJ, 128, "anonfunobj", NULL, 3, 0, 1, 12, JOF_CONST)
/* ECMA ed. 3 named function expression. */
OPDEF(JSOP_NAMEDFUNOBJ, 129, "namedfunobj", NULL, 3, 0, 1, 12, JOF_CONST)

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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
*
* The contents of this file are subject to the Netscape Public
* License Version 1.1 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.mozilla.org/NPL/
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express oqr
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* The Original Code is Mozilla Communicator client code, released
* March 31, 1998.
*
* The Initial Developer of the Original Code is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All
* Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the
* terms of the GNU Public License (the "GPL"), in which case the
* provisions of the GPL are applicable instead of those above.
* If you wish to allow use of your version of this file only
* under the terms of the GPL and not to allow others to use your
* version of this file under the NPL, indicate your decision by
* deleting the provisions above and replace them with the notice
* and other provisions required by the GPL. If you do not delete
* the provisions above, a recipient may use your version of this
* file under either the NPL or the GPL.
*/
#ifndef jsosdep_h___
#define jsosdep_h___
/*
* OS (and machine, and compiler XXX) dependent information.
*/
#ifdef MOZILLA_CLIENT
#include "platform.h"
#endif
#ifdef XP_PC
#ifdef _WIN32
#define JS_HAVE_LONG_LONG
#else
#undef JS_HAVE_LONG_LONG
#endif
#endif /* XP_PC */
#ifdef XP_MAC
#define JS_HAVE_LONG_LONG
JS_BEGIN_EXTERN_C
#include <stddef.h>
extern void* reallocSmaller(void* block, size_t newSize);
extern char* strdup(const char* str);
JS_END_EXTERN_C
#endif /* XP_MAC */
#ifdef XP_BEOS
#define JS_HAVE_LONG_LONG
#endif
#ifdef XP_UNIX
/*
* Get OS specific header information.
*/
#if defined(AIXV3) || defined(AIX)
#define JS_HAVE_LONG_LONG
#elif defined(BSDI)
#define JS_HAVE_LONG_LONG
#elif defined(HPUX)
#define JS_HAVE_LONG_LONG
#elif defined(IRIX)
#define JS_HAVE_LONG_LONG
#elif defined(linux)
#define JS_HAVE_LONG_LONG
#elif defined(OSF1)
#define JS_HAVE_LONG_LONG
#elif defined(_SCO_DS)
#undef JS_HAVE_LONG_LONG
#elif defined(SOLARIS)
#define JS_HAVE_LONG_LONG
#elif defined(SUNOS4)
#undef JS_HAVE_LONG_LONG
/*
** Missing function prototypes
*/
extern void *sbrk(int);
#elif defined(UNIXWARE)
#undef JS_HAVE_LONG_LONG
#elif defined(VMS) && defined(__ALPHA)
#define JS_HAVE_LONG_LONG
#endif
#endif /* XP_UNIX */
#endif /* jsosdep_h___ */

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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/*
* The contents of this file are subject to the Netscape Public
* License Version 1.1 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.mozilla.org/NPL/
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express oqr
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* The Original Code is Mozilla Communicator client code, released
* March 31, 1998.
*
* The Initial Developer of the Original Code is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All
* Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the
* terms of the GNU Public License (the "GPL"), in which case the
* provisions of the GPL are applicable instead of those above.
* If you wish to allow use of your version of this file only
* under the terms of the GPL and not to allow others to use your
* version of this file under the NPL, indicate your decision by
* deleting the provisions above and replace them with the notice
* and other provisions required by the GPL. If you do not delete
* the provisions above, a recipient may use your version of this
* file under either the NPL or the GPL.
*/
/*
* This section typedefs the old 'native' types to the new PR<type>s.
* These definitions are scheduled to be eliminated at the earliest
* possible time. The NSPR API is implemented and documented using
* the new definitions.
*/
/*
* Note that we test for PROTYPES_H, not JSOTYPES_H. This is to avoid
* double-definitions of scalar types such as uint32, if NSPR's
* protypes.h is also included.
*/
#ifndef PROTYPES_H
#define PROTYPES_H
#ifdef XP_BEOS
/* BeOS defines most int types in SupportDefs.h (int8, uint8, int16,
* uint16, int32, uint32, int64, uint64), so in the interest of
* not conflicting with other definitions elsewhere we have to skip the
* #ifdef jungle below, duplicate some definitions, and do our stuff.
*/
#include <SupportDefs.h>
typedef JSUintn uintn;
#ifndef _XP_Core_
typedef JSIntn intn;
#endif
#else
/* SVR4 typedef of uint is commonly found on UNIX machines. */
#ifdef XP_UNIX
#include <sys/types.h>
#else
typedef JSUintn uint;
#endif
typedef JSUintn uintn;
typedef JSUint64 uint64;
#if !defined(XP_MAC) && !defined(_WIN32) && !defined(XP_OS2)
typedef JSUint32 uint32;
#else
typedef unsigned long uint32;
#endif
typedef JSUint16 uint16;
typedef JSUint8 uint8;
#ifndef _XP_Core_
typedef JSIntn intn;
#endif
/*
* On AIX 4.3, sys/inttypes.h (which is included by sys/types.h, a very
* common header file) defines the types int8, int16, int32, and int64.
* So we don't define these four types here to avoid conflicts in case
* the code also includes sys/types.h.
*/
#ifdef AIX4_3
#include <sys/inttypes.h>
#else
typedef JSInt64 int64;
/* /usr/include/model.h on HP-UX defines int8, int16, and int32 */
#ifdef HPUX
#include <model.h>
#else
#if !defined(WIN32) || !defined(_WINSOCK2API_) /* defines its own "int32" */
#if !defined(XP_MAC) && !defined(_WIN32) && !defined(XP_OS2)
typedef JSInt32 int32;
#else
typedef long int32;
#endif
#endif
typedef JSInt16 int16;
typedef JSInt8 int8;
#endif /* HPUX */
#endif /* AIX4_3 */
#endif /* XP_BEOS */
typedef JSFloat64 float64;
/* Re: jsbit.h */
#define TEST_BIT JS_TEST_BIT
#define SET_BIT JS_SET_BIT
#define CLEAR_BIT JS_CLEAR_BIT
/* Re: prarena.h->plarena.h */
#define PRArena PLArena
#define PRArenaPool PLArenaPool
#define PRArenaStats PLArenaStats
#define PR_ARENA_ALIGN PL_ARENA_ALIGN
#define PR_INIT_ARENA_POOL PL_INIT_ARENA_POOL
#define PR_ARENA_ALLOCATE PL_ARENA_ALLOCATE
#define PR_ARENA_GROW PL_ARENA_GROW
#define PR_ARENA_MARK PL_ARENA_MARK
#define PR_CLEAR_UNUSED PL_CLEAR_UNUSED
#define PR_CLEAR_ARENA PL_CLEAR_ARENA
#define PR_ARENA_RELEASE PL_ARENA_RELEASE
#define PR_COUNT_ARENA PL_COUNT_ARENA
#define PR_ARENA_DESTROY PL_ARENA_DESTROY
#define PR_InitArenaPool PL_InitArenaPool
#define PR_FreeArenaPool PL_FreeArenaPool
#define PR_FinishArenaPool PL_FinishArenaPool
#define PR_CompactArenaPool PL_CompactArenaPool
#define PR_ArenaFinish PL_ArenaFinish
#define PR_ArenaAllocate PL_ArenaAllocate
#define PR_ArenaGrow PL_ArenaGrow
#define PR_ArenaRelease PL_ArenaRelease
#define PR_ArenaCountAllocation PL_ArenaCountAllocation
#define PR_ArenaCountInplaceGrowth PL_ArenaCountInplaceGrowth
#define PR_ArenaCountGrowth PL_ArenaCountGrowth
#define PR_ArenaCountRelease PL_ArenaCountRelease
#define PR_ArenaCountRetract PL_ArenaCountRetract
/* Re: prevent.h->plevent.h */
#define PREvent PLEvent
#define PREventQueue PLEventQueue
#define PR_CreateEventQueue PL_CreateEventQueue
#define PR_DestroyEventQueue PL_DestroyEventQueue
#define PR_GetEventQueueMonitor PL_GetEventQueueMonitor
#define PR_ENTER_EVENT_QUEUE_MONITOR PL_ENTER_EVENT_QUEUE_MONITOR
#define PR_EXIT_EVENT_QUEUE_MONITOR PL_EXIT_EVENT_QUEUE_MONITOR
#define PR_PostEvent PL_PostEvent
#define PR_PostSynchronousEvent PL_PostSynchronousEvent
#define PR_GetEvent PL_GetEvent
#define PR_EventAvailable PL_EventAvailable
#define PREventFunProc PLEventFunProc
#define PR_MapEvents PL_MapEvents
#define PR_RevokeEvents PL_RevokeEvents
#define PR_ProcessPendingEvents PL_ProcessPendingEvents
#define PR_WaitForEvent PL_WaitForEvent
#define PR_EventLoop PL_EventLoop
#define PR_GetEventQueueSelectFD PL_GetEventQueueSelectFD
#define PRHandleEventProc PLHandleEventProc
#define PRDestroyEventProc PLDestroyEventProc
#define PR_InitEvent PL_InitEvent
#define PR_GetEventOwner PL_GetEventOwner
#define PR_HandleEvent PL_HandleEvent
#define PR_DestroyEvent PL_DestroyEvent
#define PR_DequeueEvent PL_DequeueEvent
#define PR_GetMainEventQueue PL_GetMainEventQueue
/* Re: prhash.h->plhash.h */
#define PRHashEntry PLHashEntry
#define PRHashTable PLHashTable
#define PRHashNumber PLHashNumber
#define PRHashFunction PLHashFunction
#define PRHashComparator PLHashComparator
#define PRHashEnumerator PLHashEnumerator
#define PRHashAllocOps PLHashAllocOps
#define PR_NewHashTable PL_NewHashTable
#define PR_HashTableDestroy PL_HashTableDestroy
#define PR_HashTableRawLookup PL_HashTableRawLookup
#define PR_HashTableRawAdd PL_HashTableRawAdd
#define PR_HashTableRawRemove PL_HashTableRawRemove
#define PR_HashTableAdd PL_HashTableAdd
#define PR_HashTableRemove PL_HashTableRemove
#define PR_HashTableEnumerateEntries PL_HashTableEnumerateEntries
#define PR_HashTableLookup PL_HashTableLookup
#define PR_HashTableDump PL_HashTableDump
#define PR_HashString PL_HashString
#define PR_CompareStrings PL_CompareStrings
#define PR_CompareValues PL_CompareValues
#ifdef XP_MAC
#ifndef TRUE /* Mac standard is lower case true */
#define TRUE 1
#endif
#ifndef FALSE /* Mac standard is lower case false */
#define FALSE 0
#endif
#endif
#endif /* !defined(PROTYPES_H) */

3050
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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
*
* The contents of this file are subject to the Netscape Public
* License Version 1.1 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.mozilla.org/NPL/
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express oqr
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* The Original Code is Mozilla Communicator client code, released
* March 31, 1998.
*
* The Initial Developer of the Original Code is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All
* Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the
* terms of the GNU Public License (the "GPL"), in which case the
* provisions of the GPL are applicable instead of those above.
* If you wish to allow use of your version of this file only
* under the terms of the GPL and not to allow others to use your
* version of this file under the NPL, indicate your decision by
* deleting the provisions above and replace them with the notice
* and other provisions required by the GPL. If you do not delete
* the provisions above, a recipient may use your version of this
* file under either the NPL or the GPL.
*/
#ifndef jsparse_h___
#define jsparse_h___
/*
* JS parser definitions.
*/
#include "jsprvtd.h"
#include "jspubtd.h"
#include "jsscan.h"
JS_BEGIN_EXTERN_C
/*
* Parsing builds a tree of nodes that directs code generation. This tree is
* not a concrete syntax tree in all respects (for example, || and && are left
* associative, but (A && B && C) translates into the right-associated tree
* <A && <B && C>> so that code generation can emit a left-associative branch
* around <B && C> when A is false). Nodes are labeled by token type, with a
* JSOp secondary label when needed:
*
* Label Variant Members
* ----- ------- -------
* <Definitions>
* TOK_FUNCTION func pn_fun: function, contains arg and var properties
* pn_body: TOK_LC node for function body
* NB: We define or create the function object at
* parse (not emit) time, in order to specialize arg
* and var bytecodes early.
* pn_tryCount: of try statements in function
*
* <Statements>
* TOK_LC list pn_head: list of pn_count statements
* TOK_EXPORT list pn_head: list of pn_count TOK_NAMEs or one TOK_STAR
* (which is not a multiply node)
* TOK_IMPORT list pn_head: list of pn_count sub-trees of the form
* a.b.*, a[b].*, a.*, a.b, or a[b] -- but never a.
* Each member is expressed with TOK_DOT or TOK_LB.
* Each sub-tree's root node has a pn_op in the set
* JSOP_IMPORT{ALL,PROP,ELEM}
* TOK_IF ternary pn_kid1: cond, pn_kid2: then, pn_kid3: else or null
* TOK_SWITCH binary pn_left: discriminant
* pn_right: list of TOK_CASE nodes, with at most one
* TOK_DEFAULT node
* TOK_CASE, binary pn_left: case expr or null if TOK_DEFAULT
* TOK_DEFAULT pn_right: TOK_LC node for this case's statements
* TOK_WHILE binary pn_left: cond, pn_right: body
* TOK_DO binary pn_left: body, pn_right: cond
* TOK_FOR binary pn_left: either
* for/in loop: a binary TOK_IN node with
* pn_left: TOK_VAR or TOK_NAME to left of 'in'
* pn_right: object expr to right of 'in'
* for(;;) loop: a ternary TOK_RESERVED node with
* pn_kid1: init expr before first ';'
* pn_kid2: cond expr before second ';'
* pn_kid3: update expr after second ';'
* any kid may be null
* pn_right: body
* TOK_THROW unary pn_op: JSOP_THROW, pn_kid: exception
* TOK_BREAK name pn_atom: label or null
* TOK_CONTINUE name pn_atom: label or null
* TOK_WITH binary pn_left: head expr, pn_right: body
* TOK_VAR list pn_head: list of pn_count TOK_NAME nodes
* each name node has pn_atom: variable name and
* pn_expr: initializer or null
* TOK_RETURN unary pn_kid: return expr or null
* TOK_SEMI unary pn_kid: expr or null statement
* TOK_COLON name pn_atom: label, pn_expr: labeled statement
*
* <Expressions>
* TOK_COMMA list pn_head: list of pn_count comma-separated exprs
* TOK_ASSIGN binary pn_left: lvalue, pn_right: rvalue
* pn_op: JSOP_ADD for +=, etc.
* TOK_HOOK ternary pn_kid1: cond, pn_kid2: then, pn_kid3: else
* TOK_OR binary pn_left: first in || chain, pn_right: rest of chain
* TOK_AND binary pn_left: first in && chain, pn_right: rest of chain
* TOK_BITOR binary pn_left: left-assoc | expr, pn_right: ^ expr
* TOK_BITXOR binary pn_left: left-assoc ^ expr, pn_right: & expr
* TOK_BITAND binary pn_left: left-assoc & expr, pn_right: EQ expr
* TOK_EQOP binary pn_left: left-assoc EQ expr, pn_right: REL expr
* pn_op: JSOP_EQ, JSOP_NE, JSOP_NEW_EQ, JSOP_NEW_NE
* TOK_RELOP binary pn_left: left-assoc REL expr, pn_right: SH expr
* pn_op: JSOP_LT, JSOP_LE, JSOP_GT, JSOP_GE
* TOK_SHOP binary pn_left: left-assoc SH expr, pn_right: ADD expr
* pn_op: JSOP_LSH, JSOP_RSH, JSOP_URSH
* TOK_PLUS, binary pn_left: left-assoc ADD expr, pn_right: MUL expr
* TOK_MINUS pn_op: JSOP_ADD, JSOP_SUB
* TOK_STAR, binary pn_left: left-assoc MUL expr, pn_right: UNARY expr
* TOK_DIVOP pn_op: JSOP_MUL, JSOP_DIV, JSOP_MOD
* TOK_UNARYOP unary pn_kid: UNARY expr, pn_op: JSOP_NEG, JSOP_POS,
* JSOP_NOT, JSOP_BITNOT, JSOP_TYPEOF, JSOP_VOID
* TOK_INC, unary pn_kid: MEMBER expr
* TOK_DEC pn_num: arg or local var slot if non-negative
* TOK_NEW list pn_head: list of ctor, arg1, arg2, ... argN
* pn_count: 1 + N (where N is number of args)
* ctor is a MEMBER expr
* TOK_DELETE unary pn_kid: MEMBER expr
* TOK_DOT name pn_expr: MEMBER expr to left of .
* pn_atom: name to right of .
* TOK_LB binary pn_left: MEMBER expr to left of [
* pn_right: expr between [ and ]
* TOK_LP list pn_head: list of call, arg1, arg2, ... argN
* pn_count: 1 + N (where N is number of args)
* call is a MEMBER expr naming a callable object
* TOK_RB list pn_head: list of pn_count array element exprs
* [,,] holes are represented by TOK_COMMA nodes
* #n=[...] produces TOK_DEFSHARP at head of list
* pn_extra: true if extra comma at end
* TOK_RC list pn_head: list of pn_count TOK_COLON nodes where
* each has pn_left: property id, pn_right: value
* #n={...} produces TOK_DEFSHARP at head of list
* TOK_DEFSHARP unary pn_num: jsint value of n in #n=
* pn_kid: null for #n=[...] and #n={...}, primary
* if #n=primary for function, paren, name, object
* literal expressions
* TOK_USESHARP nullary pn_num: jsint value of n in #n#
* TOK_RP unary pn_kid: parenthesized expression
* TOK_NAME, name pn_atom: name, string, or object atom
* TOK_STRING, pn_op: JSOP_NAME, JSOP_STRING, or JSOP_OBJECT
* TOK_OBJECT pn_op may be *ARG or *VAR with pn_slot >= 0
* TOK_NUMBER dval pn_dval: double value of numeric literal
* TOK_PRIMARY nullary pn_op: JSOp bytecode
*/
typedef enum JSParseNodeArity {
PN_FUNC = -3,
PN_LIST = -2,
PN_TERNARY = 3,
PN_BINARY = 2,
PN_UNARY = 1,
PN_NAME = -1,
PN_NULLARY = 0
} JSParseNodeArity;
struct JSParseNode {
JSTokenType pn_type;
JSTokenPos pn_pos;
JSOp pn_op;
ptrdiff_t pn_offset; /* first generated bytecode offset */
JSParseNodeArity pn_arity;
union {
struct { /* TOK_FUNCTION node */
JSFunction *fun; /* function object private data */
JSParseNode *body; /* TOK_LC list of statements */
uint32 tryCount; /* try statement count */
JSBool topLevel; /* at TL of program or function body */
} func;
struct { /* list of next-linked nodes */
JSParseNode *head; /* first node in list */
JSParseNode **tail; /* ptr to ptr to last node in list */
uint32 count; /* number of nodes in list */
JSBool extra; /* extra comma flag for [1,2,,] */
} list;
struct { /* ternary: if, for(;;), ?: */
JSParseNode *kid1; /* condition, discriminant, etc. */
JSParseNode *kid2; /* then-part, case list, etc. */
JSParseNode *kid3; /* else-part, default case, etc. */
} ternary;
struct { /* two kids if binary */
JSParseNode *left;
JSParseNode *right;
jsval val; /* switch case value */
} binary;
struct { /* one kid if unary */
JSParseNode *kid;
jsint num; /* -1 or arg or local/sharp var num */
} unary;
struct { /* name, labeled statement, etc. */
JSAtom *atom; /* name or label atom, null if slot */
JSParseNode *expr; /* object or initializer */
jsint slot; /* -1 or arg or local var slot */
uintN attrs; /* attributes if local var or const */
} name;
jsdouble dval; /* aligned numeric literal value */
} pn_u;
JSParseNode *pn_next; /* here to align dval and pn_u on RISCs */
};
#define pn_fun pn_u.func.fun
#define pn_body pn_u.func.body
#define pn_tryCount pn_u.func.tryCount
#define pn_topLevel pn_u.func.topLevel
#define pn_head pn_u.list.head
#define pn_tail pn_u.list.tail
#define pn_count pn_u.list.count
#define pn_extra pn_u.list.extra
#define pn_kid1 pn_u.ternary.kid1
#define pn_kid2 pn_u.ternary.kid2
#define pn_kid3 pn_u.ternary.kid3
#define pn_left pn_u.binary.left
#define pn_right pn_u.binary.right
#define pn_val pn_u.binary.val
#define pn_kid pn_u.unary.kid
#define pn_num pn_u.unary.num
#define pn_atom pn_u.name.atom
#define pn_expr pn_u.name.expr
#define pn_slot pn_u.name.slot
#define pn_attrs pn_u.name.attrs
#define pn_dval pn_u.dval
/* Copy pn2 over pn, preserving pn->pn_pos and pn->pn_offset. */
#define PN_COPY_OVER(pn, pn2) \
JS_BEGIN_MACRO \
(pn)->pn_type = (pn2)->pn_type; \
(pn)->pn_op = (pn2)->pn_op; \
(pn)->pn_arity = (pn2)->pn_arity; \
(pn)->pn_u = (pn2)->pn_u; \
JS_END_MACRO
/* True if pn is a parsenode representing a literal constant. */
#define PN_IS_CONSTANT(pn) \
((pn)->pn_type == TOK_NUMBER || \
(pn)->pn_type == TOK_STRING || \
((pn)->pn_type == TOK_PRIMARY && (pn)->pn_op != JSOP_THIS))
/*
* Compute a pointer to the last JSParseNode element in a singly-linked list.
* NB: list must be non-empty for correct PN_LAST usage!
*/
#define PN_LAST(list) \
((JSParseNode *)((char *)(list)->pn_tail - offsetof(JSParseNode, pn_next)))
#define PN_INIT_LIST(list) \
JS_BEGIN_MACRO \
(list)->pn_head = NULL; \
(list)->pn_tail = &(list)->pn_head; \
(list)->pn_count = 0; \
JS_END_MACRO
#define PN_INIT_LIST_1(list, pn) \
JS_BEGIN_MACRO \
(list)->pn_head = (pn); \
(list)->pn_tail = &(pn)->pn_next; \
(list)->pn_count = 1; \
JS_END_MACRO
#define PN_APPEND(list, pn) \
JS_BEGIN_MACRO \
*(list)->pn_tail = (pn); \
(list)->pn_tail = &(pn)->pn_next; \
(list)->pn_count++; \
JS_END_MACRO
/* New names to connote code generation in addition to parse tree gen. */
#define js_CompileTokenStream js_Parse
#define js_CompileFunctionBody js_ParseFunctionBody
extern JS_FRIEND_API(JSBool)
js_CompileTokenStream(JSContext *cx, JSObject *chain, JSTokenStream *ts,
JSCodeGenerator *cg);
extern JSBool
js_CompileFunctionBody(JSContext *cx, JSTokenStream *ts, JSFunction *fun);
/* XXXbe expose js_Parse{TokenStream,FunctionBody} that return trees? */
extern JSBool
js_FoldConstants(JSContext *cx, JSParseNode *pn);
JS_END_EXTERN_C
#endif /* jsparse_h___ */

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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/*
* The contents of this file are subject to the Netscape Public
* License Version 1.1 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.mozilla.org/NPL/
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express oqr
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* The Original Code is Mozilla Communicator client code, released
* March 31, 1998.
*
* The Initial Developer of the Original Code is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All
* Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the
* terms of the GNU Public License (the "GPL"), in which case the
* provisions of the GPL are applicable instead of those above.
* If you wish to allow use of your version of this file only
* under the terms of the GPL and not to allow others to use your
* version of this file under the NPL, indicate your decision by
* deleting the provisions above and replace them with the notice
* and other provisions required by the GPL. If you do not delete
* the provisions above, a recipient may use your version of this
* file under either the NPL or the GPL.
*/
#ifndef jsprf_h___
#define jsprf_h___
/*
** API for PR printf like routines. Supports the following formats
** %d - decimal
** %u - unsigned decimal
** %x - unsigned hex
** %X - unsigned uppercase hex
** %o - unsigned octal
** %hd, %hu, %hx, %hX, %ho - 16-bit versions of above
** %ld, %lu, %lx, %lX, %lo - 32-bit versions of above
** %lld, %llu, %llx, %llX, %llo - 64 bit versions of above
** %s - string
** %c - character
** %p - pointer (deals with machine dependent pointer size)
** %f - float
** %g - float
*/
#include "jstypes.h"
#include <stdio.h>
#include <stdarg.h>
JS_BEGIN_EXTERN_C
/*
** sprintf into a fixed size buffer. Guarantees that a NUL is at the end
** of the buffer. Returns the length of the written output, NOT including
** the NUL, or (JSUint32)-1 if an error occurs.
*/
extern JS_PUBLIC_API(JSUint32) JS_snprintf(char *out, JSUint32 outlen, const char *fmt, ...);
/*
** sprintf into a malloc'd buffer. Return a pointer to the malloc'd
** buffer on success, NULL on failure. Call "JS_smprintf_free" to release
** the memory returned.
*/
extern JS_PUBLIC_API(char*) JS_smprintf(const char *fmt, ...);
/*
** Free the memory allocated, for the caller, by JS_smprintf
*/
extern JS_PUBLIC_API(void) JS_smprintf_free(char *mem);
/*
** "append" sprintf into a malloc'd buffer. "last" is the last value of
** the malloc'd buffer. sprintf will append data to the end of last,
** growing it as necessary using realloc. If last is NULL, JS_sprintf_append
** will allocate the initial string. The return value is the new value of
** last for subsequent calls, or NULL if there is a malloc failure.
*/
extern JS_PUBLIC_API(char*) JS_sprintf_append(char *last, const char *fmt, ...);
/*
** sprintf into a function. The function "f" is called with a string to
** place into the output. "arg" is an opaque pointer used by the stuff
** function to hold any state needed to do the storage of the output
** data. The return value is a count of the number of characters fed to
** the stuff function, or (JSUint32)-1 if an error occurs.
*/
typedef JSIntn (*JSStuffFunc)(void *arg, const char *s, JSUint32 slen);
extern JS_PUBLIC_API(JSUint32) JS_sxprintf(JSStuffFunc f, void *arg, const char *fmt, ...);
/*
** va_list forms of the above.
*/
extern JS_PUBLIC_API(JSUint32) JS_vsnprintf(char *out, JSUint32 outlen, const char *fmt, va_list ap);
extern JS_PUBLIC_API(char*) JS_vsmprintf(const char *fmt, va_list ap);
extern JS_PUBLIC_API(char*) JS_vsprintf_append(char *last, const char *fmt, va_list ap);
extern JS_PUBLIC_API(JSUint32) JS_vsxprintf(JSStuffFunc f, void *arg, const char *fmt, va_list ap);
/*
***************************************************************************
** FUNCTION: JS_sscanf
** DESCRIPTION:
** JS_sscanf() scans the input character string, performs data
** conversions, and stores the converted values in the data objects
** pointed to by its arguments according to the format control
** string.
**
** JS_sscanf() behaves the same way as the sscanf() function in the
** Standard C Library (stdio.h), with the following exceptions:
** - JS_sscanf() handles the NSPR integer and floating point types,
** such as JSInt16, JSInt32, JSInt64, and JSFloat64, whereas
** sscanf() handles the standard C types like short, int, long,
** and double.
** - JS_sscanf() has no multibyte character support, while sscanf()
** does.
** INPUTS:
** const char *buf
** a character string holding the input to scan
** const char *fmt
** the format control string for the conversions
** ...
** variable number of arguments, each of them is a pointer to
** a data object in which the converted value will be stored
** OUTPUTS: none
** RETURNS: JSInt32
** The number of values converted and stored.
** RESTRICTIONS:
** Multibyte characters in 'buf' or 'fmt' are not allowed.
***************************************************************************
*/
extern JS_PUBLIC_API(JSInt32) JS_sscanf(const char *buf, const char *fmt, ...);
JS_END_EXTERN_C
#endif /* jsprf_h___ */

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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
*
* The contents of this file are subject to the Netscape Public
* License Version 1.1 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.mozilla.org/NPL/
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express oqr
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* The Original Code is Mozilla Communicator client code, released
* March 31, 1998.
*
* The Initial Developer of the Original Code is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All
* Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the
* terms of the GNU Public License (the "GPL"), in which case the
* provisions of the GPL are applicable instead of those above.
* If you wish to allow use of your version of this file only
* under the terms of the GPL and not to allow others to use your
* version of this file under the NPL, indicate your decision by
* deleting the provisions above and replace them with the notice
* and other provisions required by the GPL. If you do not delete
* the provisions above, a recipient may use your version of this
* file under either the NPL or the GPL.
*/
#ifndef jsprvtd_h___
#define jsprvtd_h___
/*
* JS private typename definitions.
*
* This header is included only in other .h files, for convenience and for
* simplicity of type naming. The alternative for structures is to use tags,
* which are named the same as their typedef names (legal in C/C++, and less
* noisy than suffixing the typedef name with "Struct" or "Str"). Instead,
* all .h files that include this file may use the same typedef name, whether
* declaring a pointer to struct type, or defining a member of struct type.
*
* A few fundamental scalar types are defined here too. Neither the scalar
* nor the struct typedefs should change much, therefore the nearly-global
* make dependency induced by this file should not prove painful.
*/
#include "jspubtd.h"
/* Scalar typedefs. */
typedef uint8 jsbytecode;
typedef uint8 jssrcnote;
typedef uint32 jsatomid;
/* Struct typedefs. */
typedef struct JSArgumentFormatMap JSArgumentFormatMap;
typedef struct JSCodeGenerator JSCodeGenerator;
typedef struct JSGCThing JSGCThing;
typedef struct JSParseNode JSParseNode;
typedef struct JSSharpObjectMap JSSharpObjectMap;
typedef struct JSToken JSToken;
typedef struct JSTokenPos JSTokenPos;
typedef struct JSTokenPtr JSTokenPtr;
typedef struct JSTokenStream JSTokenStream;
typedef struct JSTreeContext JSTreeContext;
typedef struct JSTryNote JSTryNote;
/* Friend "Advanced API" typedefs. */
typedef struct JSAtom JSAtom;
typedef struct JSAtomList JSAtomList;
typedef struct JSAtomListElement JSAtomListElement;
typedef struct JSAtomMap JSAtomMap;
typedef struct JSAtomState JSAtomState;
typedef struct JSCodeSpec JSCodeSpec;
typedef struct JSPrinter JSPrinter;
typedef struct JSRegExp JSRegExp;
typedef struct JSRegExpStatics JSRegExpStatics;
typedef struct JSScope JSScope;
typedef struct JSScopeOps JSScopeOps;
typedef struct JSScopeProperty JSScopeProperty;
typedef struct JSStackFrame JSStackFrame;
typedef struct JSSubString JSSubString;
typedef struct JSSymbol JSSymbol;
/* "Friend" types used by jscntxt.h and jsdbgapi.h. */
typedef enum JSTrapStatus {
JSTRAP_ERROR,
JSTRAP_CONTINUE,
JSTRAP_RETURN,
JSTRAP_THROW,
JSTRAP_LIMIT
} JSTrapStatus;
#ifndef CRT_CALL
#ifdef XP_OS2
#define CRT_CALL _Optlink
#else
#define CRT_CALL
#endif
#endif
typedef JSTrapStatus
(* CRT_CALL JSTrapHandler)(JSContext *cx, JSScript *script, jsbytecode *pc,
jsval *rval, void *closure);
typedef JSBool
(* CRT_CALL JSWatchPointHandler)(JSContext *cx, JSObject *obj, jsval id,
jsval old, jsval *newp, void *closure);
/* called just after script creation */
typedef void
(* CRT_CALL JSNewScriptHook)(JSContext *cx,
const char *filename, /* URL of script */
uintN lineno, /* line script starts */
JSScript *script,
JSFunction *fun,
void *callerdata);
/* called just before script destruction */
typedef void
(* CRT_CALL JSDestroyScriptHook)(JSContext *cx,
JSScript *script,
void *callerdata);
typedef void
(* CRT_CALL JSSourceHandler)(const char *filename, uintN lineno,
jschar *str, size_t length,
void **listenerTSData, void *closure);
/*
* This hook captures high level script execution and function calls
* (JS or native).
* It is used by JS_SetExecuteHook to hook top level scripts and by
* JS_SetCallHook to hook function calls.
* It will get called twice per script or function call:
* just before execution begins and just after it finishes. In both cases
* the 'current' frame is that of the executing code.
*
* The 'before' param is JS_TRUE for the hook invocation before the execution
* and JS_FALSE for the invocation after the code has run.
*
* The 'ok' param is significant only on the post execution invocation to
* signify whether or not the code completed 'normally'.
*
* The 'closure' param is as passed to JS_SetExecuteHook or JS_SetCallHook
* for the 'before'invocation, but is whatever value is returned from that
* invocation for the 'after' invocation. Thus, the hook implementor *could*
* allocate a stucture in the 'before' invocation and return a pointer
* to that structure. The pointer would then be handed to the hook for
* the 'after' invocation. Alternately, the 'before' could just return the
* same value as in 'closure' to cause the 'after' invocation to be called
* with the same 'closure' value as the 'before'.
*
* Returning NULL in the 'before' hook will cause the 'after' hook to
* NOT be called.
*/
typedef void *
(* CRT_CALL JSInterpreterHook)(JSContext *cx, JSStackFrame *fp, JSBool before,
JSBool *ok, void *closure);
typedef void
(* CRT_CALL JSObjectHook)(JSContext *cx, JSObject *obj, JSBool isNew,
void *closure);
typedef JSBool
(* CRT_CALL JSDebugErrorHook)(JSContext *cx, const char *message,
JSErrorReport *report, void *closure);
#endif /* jsprvtd_h___ */

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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
*
* The contents of this file are subject to the Netscape Public
* License Version 1.1 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.mozilla.org/NPL/
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express oqr
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* The Original Code is Mozilla Communicator client code, released
* March 31, 1998.
*
* The Initial Developer of the Original Code is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All
* Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the
* terms of the GNU Public License (the "GPL"), in which case the
* provisions of the GPL are applicable instead of those above.
* If you wish to allow use of your version of this file only
* under the terms of the GPL and not to allow others to use your
* version of this file under the NPL, indicate your decision by
* deleting the provisions above and replace them with the notice
* and other provisions required by the GPL. If you do not delete
* the provisions above, a recipient may use your version of this
* file under either the NPL or the GPL.
*/
#ifndef jspubtd_h___
#define jspubtd_h___
/*
* JS public API typedefs.
*/
#include "jstypes.h"
#include "jscompat.h"
JS_BEGIN_EXTERN_C
/* Scalar typedefs. */
typedef uint16 jschar;
typedef int32 jsint;
typedef uint32 jsuint;
typedef float64 jsdouble;
typedef jsword jsval;
typedef jsword jsid;
typedef jsword jsrefcount;
typedef enum JSVersion {
JSVERSION_1_0 = 100,
JSVERSION_1_1 = 110,
JSVERSION_1_2 = 120,
JSVERSION_1_3 = 130,
JSVERSION_1_4 = 140,
JSVERSION_1_5 = 150,
JSVERSION_DEFAULT = 0,
JSVERSION_UNKNOWN = -1
} JSVersion;
#define JSVERSION_IS_ECMA(version) \
((version) == JSVERSION_DEFAULT || (version) >= JSVERSION_1_3)
/* Result of typeof operator enumeration. */
typedef enum JSType {
JSTYPE_VOID, /* undefined */
JSTYPE_OBJECT, /* object */
JSTYPE_FUNCTION, /* function */
JSTYPE_STRING, /* string */
JSTYPE_NUMBER, /* number */
JSTYPE_BOOLEAN, /* boolean */
JSTYPE_LIMIT
} JSType;
/* JSObjectOps.checkAccess mode enumeration. */
typedef enum JSAccessMode {
JSACC_PROTO,
JSACC_PARENT,
JSACC_IMPORT,
JSACC_WATCH,
JSACC_LIMIT
} JSAccessMode;
/*
* This enum type is used to control the behavior of a JSObject property
* iterator function that has type JSNewEnumerate.
*/
typedef enum JSIterateOp {
JSENUMERATE_INIT, /* Create new iterator state */
JSENUMERATE_NEXT, /* Iterate once */
JSENUMERATE_DESTROY /* Destroy iterator state */
} JSIterateOp;
/* Struct typedefs. */
typedef struct JSClass JSClass;
typedef struct JSConstDoubleSpec JSConstDoubleSpec;
typedef struct JSContext JSContext;
typedef struct JSErrorReport JSErrorReport;
typedef struct JSFunction JSFunction;
typedef struct JSFunctionSpec JSFunctionSpec;
typedef struct JSIdArray JSIdArray;
typedef struct JSProperty JSProperty;
typedef struct JSPropertySpec JSPropertySpec;
typedef struct JSObject JSObject;
typedef struct JSObjectMap JSObjectMap;
typedef struct JSObjectOps JSObjectOps;
typedef struct JSRuntime JSRuntime;
typedef struct JSRuntime JSTaskState; /* XXX deprecated name */
typedef struct JSScript JSScript;
typedef struct JSString JSString;
typedef struct JSXDRState JSXDRState;
typedef struct JSExceptionState JSExceptionState;
#ifndef CRT_CALL
#ifdef XP_OS2
#define CRT_CALL _Optlink
#else
#define CRT_CALL
#endif
#endif
/* JSClass (and JSObjectOps where appropriate) function pointer typedefs. */
typedef JSBool
(* CRT_CALL JSPropertyOp)(JSContext *cx, JSObject *obj, jsval id, jsval *vp);
/*
* This function type is used for callbacks that enumerate the properties of a
* JSObject. The behavior depends on the value of enum_op:
*
* JSENUMERATE_INIT - A new, opaque iterator state should be allocated and
* stored in *statep. (You can use PRIVATE_TO_JSVAL() to store
* a pointer in *statep). The number of properties that will be
* enumerated should be returned as an integer jsval in *idp, if idp
* is non-NULL.
* JSENUMERATE_NEXT - A previously allocated opaque iterator state is passed
* in via statep. Return the next jsid in the iteration using *idp.
* The opaque iterator state pointed at by statep is destroyed and
* *statep is set to JSVAL_NULL if there are no properties left to
* enumerate.
* JSENUMERATE_DESTROY - Destroy the opaque iterator previous allocated by
* a call to this function with enum_op set to JSENUMERATE_INIT.
*
* The return value is always used to indicate success, with a value of JS_FALSE
* for failure.
*/
typedef JSBool
(* CRT_CALL JSNewEnumerateOp)(JSContext *cx, JSObject *obj,
JSIterateOp enum_op,
jsval *statep, jsid *idp);
typedef JSBool
(* CRT_CALL JSEnumerateOp)(JSContext *cx, JSObject *obj);
typedef JSBool
(* CRT_CALL JSResolveOp)(JSContext *cx, JSObject *obj, jsval id);
typedef JSBool
(* CRT_CALL JSNewResolveOp)(JSContext *cx, JSObject *obj, jsval id, uintN flags,
JSObject **objp);
typedef JSBool
(* CRT_CALL JSConvertOp)(JSContext *cx, JSObject *obj, JSType type, jsval *vp);
typedef void
(* CRT_CALL JSFinalizeOp)(JSContext *cx, JSObject *obj);
typedef JSObjectOps *
(* CRT_CALL JSGetObjectOps)(JSContext *cx, JSClass *clasp);
typedef JSBool
(* CRT_CALL JSCheckAccessOp)(JSContext *cx, JSObject *obj, jsval id,
JSAccessMode mode, jsval *vp);
typedef JSBool
(* CRT_CALL JSXDRObjectOp)(JSXDRState *xdr, JSObject **objp);
typedef JSBool
(* CRT_CALL JSHasInstanceOp)(JSContext *cx, JSObject *obj, jsval v,
JSBool *bp);
/* JSObjectOps function pointer typedefs. */
typedef JSObjectMap *
(* CRT_CALL JSNewObjectMapOp)(JSContext *cx, jsrefcount nrefs,
JSObjectOps *ops, JSClass *clasp,
JSObject *obj);
typedef void
(* CRT_CALL JSObjectMapOp)(JSContext *cx, JSObjectMap *map);
typedef JSBool
(* CRT_CALL JSLookupPropOp)(JSContext *cx, JSObject *obj, jsid id,
JSObject **objp, JSProperty **propp
#if defined JS_THREADSAFE && defined DEBUG
, const char *file, uintN line
#endif
);
typedef JSBool
(* CRT_CALL JSDefinePropOp)(JSContext *cx, JSObject *obj, jsid id, jsval value,
JSPropertyOp getter, JSPropertyOp setter,
uintN attrs, JSProperty **propp);
typedef JSBool
(* CRT_CALL JSPropertyIdOp)(JSContext *cx, JSObject *obj, jsid id, jsval *vp);
typedef JSBool
(* CRT_CALL JSAttributesOp)(JSContext *cx, JSObject *obj, jsid id,
JSProperty *prop, uintN *attrsp);
typedef JSBool
(* CRT_CALL JSCheckAccessIdOp)(JSContext *cx, JSObject *obj, jsid id,
JSAccessMode mode, jsval *vp, uintN *attrsp);
typedef JSObject *
(* CRT_CALL JSObjectOp)(JSContext *cx, JSObject *obj);
typedef void
(* CRT_CALL JSPropertyRefOp)(JSContext *cx, JSObject *obj, JSProperty *prop);
/* Typedef for native functions called by the JS VM. */
typedef JSBool
(* CRT_CALL JSNative)(JSContext *cx, JSObject *obj, uintN argc, jsval *argv,
jsval *rval);
/* Callbacks and their arguments. */
typedef enum JSGCStatus {
JSGC_BEGIN,
JSGC_END
} JSGCStatus;
typedef JSBool
(* CRT_CALL JSGCCallback)(JSContext *cx, JSGCStatus status);
typedef JSBool
(* CRT_CALL JSBranchCallback)(JSContext *cx, JSScript *script);
typedef void
(* CRT_CALL JSErrorReporter)(JSContext *cx, const char *message,
JSErrorReport *report);
typedef struct JSErrorFormatString {
const char *format;
uintN argCount;
} JSErrorFormatString;
typedef const JSErrorFormatString *
(* CRT_CALL JSErrorCallback)(void *userRef, const char *locale,
const uintN errorNumber);
#ifdef va_start
#define JS_ARGUMENT_FORMATTER_DEFINED 1
typedef JSBool
(* CRT_CALL JSArgumentFormatter)(JSContext *cx, const char *format,
JSBool fromJS, jsval **vpp, va_list *app);
#endif
JS_END_EXTERN_C
#endif /* jspubtd_h___ */

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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
*
* The contents of this file are subject to the Netscape Public
* License Version 1.1 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.mozilla.org/NPL/
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express oqr
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* The Original Code is Mozilla Communicator client code, released
* March 31, 1998.
*
* The Initial Developer of the Original Code is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All
* Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the
* terms of the GNU Public License (the "GPL"), in which case the
* provisions of the GPL are applicable instead of those above.
* If you wish to allow use of your version of this file only
* under the terms of the GPL and not to allow others to use your
* version of this file under the NPL, indicate your decision by
* deleting the provisions above and replace them with the notice
* and other provisions required by the GPL. If you do not delete
* the provisions above, a recipient may use your version of this
* file under either the NPL or the GPL.
*/
#ifndef jsregexp_h___
#define jsregexp_h___
/*
* JS regular expression interface.
*/
#include <stddef.h>
#include "jspubtd.h"
#include "jsstr.h"
struct JSRegExpStatics {
JSString *input; /* input string to match (perl $_, GC root) */
JSBool multiline; /* whether input contains newlines (perl $*) */
uintN parenCount; /* number of valid elements in parens[] */
uintN moreLength; /* number of allocated elements in moreParens */
JSSubString parens[9]; /* last set of parens matched (perl $1, $2) */
JSSubString *moreParens; /* null or realloc'd vector for $10, etc. */
JSSubString lastMatch; /* last string matched (perl $&) */
JSSubString lastParen; /* last paren matched (perl $+) */
JSSubString leftContext; /* input to left of last match (perl $`) */
JSSubString rightContext; /* input to right of last match (perl $') */
};
/*
* This macro is safe because moreParens is guaranteed to be allocated and big
* enough to hold parenCount, or else be null when parenCount is 0.
*/
#define REGEXP_PAREN_SUBSTRING(res, num) \
(((jsuint)(num) < (jsuint)(res)->parenCount) \
? ((jsuint)(num) < 9) \
? &(res)->parens[num] \
: &(res)->moreParens[(num) - 9] \
: &js_EmptySubString)
struct JSRegExp {
JSString *source; /* locked source string, sans // */
uintN lastIndex; /* index after last match, for //g iterator */
uintN parenCount; /* number of parenthesized submatches */
uint8 flags; /* flags, see jsapi.h */
struct RENode *ren; /* regular expression tree root */
};
extern JSRegExp *
js_NewRegExp(JSContext *cx, JSString *str, uintN flags, JSBool flat);
extern JSRegExp *
js_NewRegExpOpt(JSContext *cx, JSString *str, JSString *opt, JSBool flat);
extern void
js_DestroyRegExp(JSContext *cx, JSRegExp *re);
/*
* Execute re on input str at *indexp, returning null in *rval on mismatch.
* On match, return true if test is true, otherwise return an array object.
* Update *indexp and cx->regExpStatics always on match.
*/
extern JSBool
js_ExecuteRegExp(JSContext *cx, JSRegExp *re, JSString *str, size_t *indexp,
JSBool test, jsval *rval);
/*
* These two add and remove GC roots, respectively, so their calls must be
* well-ordered.
*/
extern JSBool
js_InitRegExpStatics(JSContext *cx, JSRegExpStatics *res);
extern void
js_FreeRegExpStatics(JSContext *cx, JSRegExpStatics *res);
#define JSVAL_IS_REGEXP(cx, v) \
(JSVAL_IS_OBJECT(v) && JSVAL_TO_OBJECT(v) && \
OBJ_GET_CLASS(cx, JSVAL_TO_OBJECT(v)) == &js_RegExpClass)
extern JSClass js_RegExpClass;
extern JSObject *
js_InitRegExpClass(JSContext *cx, JSObject *obj);
/*
* Create a new RegExp object.
*/
extern JSObject *
js_NewRegExpObject(JSContext *cx, jschar *chars, size_t length, uintN flags);
extern JSBool
js_XDRRegExp(JSXDRState *xdr, JSObject **objp);
#endif /* jsregexp_h___ */

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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
*
* The contents of this file are subject to the Netscape Public
* License Version 1.1 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.mozilla.org/NPL/
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express oqr
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* The Original Code is Mozilla Communicator client code, released
* March 31, 1998.
*
* The Initial Developer of the Original Code is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All
* Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the
* terms of the GNU Public License (the "GPL"), in which case the
* provisions of the GPL are applicable instead of those above.
* If you wish to allow use of your version of this file only
* under the terms of the GPL and not to allow others to use your
* version of this file under the NPL, indicate your decision by
* deleting the provisions above and replace them with the notice
* and other provisions required by the GPL. If you do not delete
* the provisions above, a recipient may use your version of this
* file under either the NPL or the GPL.
*/
#ifndef jsscan_h___
#define jsscan_h___
/*
* JS lexical scanner interface.
*/
#include <stddef.h>
#include <stdio.h>
#include "jsopcode.h"
#include "jsprvtd.h"
#include "jspubtd.h"
JS_BEGIN_EXTERN_C
typedef enum JSTokenType {
TOK_ERROR = -1, /* well-known as the only code < EOF */
TOK_EOF = 0, /* end of file */
TOK_EOL = 1, /* end of line */
TOK_SEMI = 2, /* semicolon */
TOK_LB = 3, TOK_RB = 4, /* left and right brackets */
TOK_LC = 5, TOK_RC = 6, /* left and right curlies (braces) */
TOK_LP = 7, TOK_RP = 8, /* left and right parentheses */
TOK_COMMA = 9, /* comma operator */
TOK_ASSIGN = 10, /* assignment ops (= += -= etc.) */
TOK_HOOK = 11, TOK_COLON = 12, /* conditional (?:) */
TOK_OR = 13, /* logical or (||) */
TOK_AND = 14, /* logical and (&&) */
TOK_BITOR = 15, /* bitwise-or (|) */
TOK_BITXOR = 16, /* bitwise-xor (^) */
TOK_BITAND = 17, /* bitwise-and (&) */
TOK_EQOP = 18, /* equality ops (== !=) */
TOK_RELOP = 19, /* relational ops (< <= > >=) */
TOK_SHOP = 20, /* shift ops (<< >> >>>) */
TOK_PLUS = 21, /* plus */
TOK_MINUS = 22, /* minus */
TOK_STAR = 23, TOK_DIVOP = 24, /* multiply/divide ops (* / %) */
TOK_UNARYOP = 25, /* unary prefix operator */
TOK_INC = 26, TOK_DEC = 27, /* increment/decrement (++ --) */
TOK_DOT = 28, /* member operator (.) */
TOK_NAME = 29, /* identifier */
TOK_NUMBER = 30, /* numeric constant */
TOK_STRING = 31, /* string constant */
TOK_OBJECT = 32, /* RegExp or other object constant */
TOK_PRIMARY = 33, /* true, false, null, this, super */
TOK_FUNCTION = 34, /* function keyword */
TOK_EXPORT = 35, /* export keyword */
TOK_IMPORT = 36, /* import keyword */
TOK_IF = 37, /* if keyword */
TOK_ELSE = 38, /* else keyword */
TOK_SWITCH = 39, /* switch keyword */
TOK_CASE = 40, /* case keyword */
TOK_DEFAULT = 41, /* default keyword */
TOK_WHILE = 42, /* while keyword */
TOK_DO = 43, /* do keyword */
TOK_FOR = 44, /* for keyword */
TOK_BREAK = 45, /* break keyword */
TOK_CONTINUE = 46, /* continue keyword */
TOK_IN = 47, /* in keyword */
TOK_VAR = 48, /* var keyword */
TOK_WITH = 49, /* with keyword */
TOK_RETURN = 50, /* return keyword */
TOK_NEW = 51, /* new keyword */
TOK_DELETE = 52, /* delete keyword */
TOK_DEFSHARP = 53, /* #n= for object/array initializers */
TOK_USESHARP = 54, /* #n# for object/array initializers */
TOK_TRY = 55, /* try keyword */
TOK_CATCH = 56, /* catch keyword */
TOK_FINALLY = 57, /* finally keyword */
TOK_THROW = 58, /* throw keyword */
TOK_INSTANCEOF = 59, /* instanceof keyword */
TOK_DEBUGGER = 60, /* debugger keyword */
TOK_RESERVED, /* reserved keywords */
TOK_LIMIT /* domain size */
} JSTokenType;
#define IS_PRIMARY_TOKEN(tt) \
((uintN)((tt) - TOK_NAME) <= (uintN)(TOK_PRIMARY - TOK_NAME))
struct JSTokenPtr {
uint16 index; /* index of char in physical line */
uint16 lineno; /* physical line number */
};
struct JSTokenPos {
JSTokenPtr begin; /* first character and line of token */
JSTokenPtr end; /* index 1 past last char, last line */
};
struct JSToken {
JSTokenType type; /* char value or above enumerator */
JSTokenPos pos; /* token position in file */
jschar *ptr; /* beginning of token in line buffer */
union {
struct {
JSOp op; /* operator, for minimal parser */
JSAtom *atom; /* atom table entry */
} s;
jsdouble dval; /* floating point number */
} u;
};
#define t_op u.s.op
#define t_atom u.s.atom
#define t_dval u.dval
typedef struct JSTokenBuf {
jschar *base; /* base of line or stream buffer */
jschar *limit; /* limit for quick bounds check */
jschar *ptr; /* next char to get, or slot to use */
} JSTokenBuf;
#define JS_LINE_LIMIT 256 /* logical line buffer size limit --
physical line length is unlimited */
#define NTOKENS 4 /* 1 current + 2 lookahead, rounded */
#define NTOKENS_MASK (NTOKENS-1) /* to power of 2 to avoid divmod by 3 */
struct JSTokenStream {
JSToken tokens[NTOKENS];/* circular token buffer */
uintN cursor; /* index of last parsed token */
uintN lookahead; /* count of lookahead tokens */
uintN lineno; /* current line number */
uintN ungetpos; /* next free char slot in ungetbuf */
jschar ungetbuf[4]; /* at most 4, for \uXXXX lookahead */
uintN flags; /* flags -- see below */
ptrdiff_t linelen; /* physical linebuf segment length */
ptrdiff_t linepos; /* linebuf offset in physical line */
JSTokenBuf linebuf; /* line buffer for diagnostics */
JSTokenBuf userbuf; /* user input buffer if !file */
JSTokenBuf tokenbuf; /* current token string buffer */
const char *filename; /* input filename or null */
FILE *file; /* stdio stream if reading from file */
JSPrincipals *principals; /* principals associated with source */
JSSourceHandler listener; /* callback for source; eg debugger */
void *listenerData; /* listener 'this' data */
void *listenerTSData;/* listener data for this TokenStream */
};
#define CURRENT_TOKEN(ts) ((ts)->tokens[(ts)->cursor])
/* JSTokenStream flags */
#define TSF_ERROR 0x01 /* fatal error while compiling */
#define TSF_EOF 0x02 /* hit end of file */
#define TSF_NEWLINES 0x04 /* tokenize newlines */
#define TSF_REGEXP 0x08 /* looking for a regular expression */
#define TSF_NLFLAG 0x20 /* last linebuf ended with \n */
#define TSF_CRFLAG 0x40 /* linebuf would have ended with \r */
/*
* Create a new token stream, either from an input buffer or from a file.
* Return null on file-open or memory-allocation failure.
*
* NB: All of js_New{,Buffer,File}TokenStream() return a pointer to transient
* memory in the current context's temp pool. This memory is deallocated via
* JS_ARENA_RELEASE() after parsing is finished.
*/
extern JSTokenStream *
js_NewTokenStream(JSContext *cx, const jschar *base, size_t length,
const char *filename, uintN lineno, JSPrincipals *principals);
extern JS_FRIEND_API(JSTokenStream *)
js_NewBufferTokenStream(JSContext *cx, const jschar *base, size_t length);
extern JS_FRIEND_API(JSTokenStream *)
js_NewFileTokenStream(JSContext *cx, const char *filename, FILE *defaultfp);
extern JS_FRIEND_API(JSBool)
js_CloseTokenStream(JSContext *cx, JSTokenStream *ts);
/*
* Initialize the scanner, installing JS keywords into cx's global scope.
*/
extern JSBool
js_InitScanner(JSContext *cx);
/*
* Friend-exported API entry point to call a mapping function on each reserved
* identifier in the scanner's keyword table.
*/
extern JS_FRIEND_API(void)
js_MapKeywords(void (*mapfun)(const char *));
extern JSBool
js_ReportCompileErrorNumber(JSContext *cx, JSTokenStream *ts, uintN flags,
const uintN errorNumber, ...);
/*
* Look ahead one token and return its type.
*/
extern JSTokenType
js_PeekToken(JSContext *cx, JSTokenStream *ts);
extern JSTokenType
js_PeekTokenSameLine(JSContext *cx, JSTokenStream *ts);
/*
* Get the next token from ts.
*/
extern JSTokenType
js_GetToken(JSContext *cx, JSTokenStream *ts);
/*
* Push back the last scanned token onto ts.
*/
extern void
js_UngetToken(JSTokenStream *ts);
/*
* Get the next token from ts if its type is tt.
*/
extern JSBool
js_MatchToken(JSContext *cx, JSTokenStream *ts, JSTokenType tt);
JS_END_EXTERN_C
#endif /* jsscan_h___ */

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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
*
* The contents of this file are subject to the Netscape Public
* License Version 1.1 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.mozilla.org/NPL/
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express oqr
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* The Original Code is Mozilla Communicator client code, released
* March 31, 1998.
*
* The Initial Developer of the Original Code is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All
* Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the
* terms of the GNU Public License (the "GPL"), in which case the
* provisions of the GPL are applicable instead of those above.
* If you wish to allow use of your version of this file only
* under the terms of the GPL and not to allow others to use your
* version of this file under the NPL, indicate your decision by
* deleting the provisions above and replace them with the notice
* and other provisions required by the GPL. If you do not delete
* the provisions above, a recipient may use your version of this
* file under either the NPL or the GPL.
*/
/*
* JS symbol tables.
*/
#include "jsstddef.h"
#include <string.h>
#include "jstypes.h"
#include "jsutil.h" /* Added by JSIFY */
#include "jsapi.h"
#include "jsatom.h"
#include "jscntxt.h"
#include "jsinterp.h"
#include "jslock.h"
#include "jsnum.h"
#include "jsscope.h"
#include "jsstr.h"
JS_STATIC_DLL_CALLBACK(JSHashNumber)
js_hash_id(const void *key)
{
jsval v;
const JSAtom *atom;
v = (jsval)key;
if (JSVAL_IS_INT(v))
return JSVAL_TO_INT(v);
atom = key;
return atom->number;
}
typedef struct JSScopePrivate {
JSContext *context;
JSScope *scope;
} JSScopePrivate;
JS_STATIC_DLL_CALLBACK(void *)
js_alloc_scope_space(void *priv, size_t size)
{
return JS_malloc(((JSScopePrivate *)priv)->context, size);
}
JS_STATIC_DLL_CALLBACK(void)
js_free_scope_space(void *priv, void *item)
{
JS_free(((JSScopePrivate *)priv)->context, item);
}
JS_STATIC_DLL_CALLBACK(JSHashEntry *)
js_alloc_symbol(void *priv, const void *key)
{
JSScopePrivate *spriv;
JSContext *cx;
JSSymbol *sym;
spriv = priv;
JS_ASSERT(JS_IS_SCOPE_LOCKED(spriv->scope));
cx = spriv->context;
sym = JS_malloc(cx, sizeof(JSSymbol));
if (!sym)
return NULL;
sym->entry.key = key;
return &sym->entry;
}
JS_STATIC_DLL_CALLBACK(void)
js_free_symbol(void *priv, JSHashEntry *he, uintN flag)
{
JSScopePrivate *spriv;
JSContext *cx;
JSSymbol *sym, **sp;
JSScopeProperty *sprop;
spriv = priv;
JS_ASSERT(JS_IS_SCOPE_LOCKED(spriv->scope));
cx = spriv->context;
sym = (JSSymbol *)he;
sprop = sym->entry.value;
if (sprop) {
sym->entry.value = NULL;
sprop = js_DropScopeProperty(cx, spriv->scope, sprop);
if (sprop) {
for (sp = &sprop->symbols; *sp; sp = &(*sp)->next) {
if (*sp == sym) {
*sp = sym->next;
if (!*sp)
break;
}
}
sym->next = NULL;
}
}
if (flag == HT_FREE_ENTRY)
JS_free(cx, he);
}
static JSHashAllocOps hash_scope_alloc_ops = {
js_alloc_scope_space, js_free_scope_space,
js_alloc_symbol, js_free_symbol
};
/************************************************************************/
JS_STATIC_DLL_CALLBACK(JSSymbol *)
js_hash_scope_lookup(JSContext *cx, JSScope *scope, jsid id, JSHashNumber hash)
{
JSHashTable *table = scope->data;
JSHashEntry **hep;
JSSymbol *sym;
hep = JS_HashTableRawLookup(table, hash, (const void *)id);
sym = (JSSymbol *) *hep;
return sym;
}
#define SCOPE_ADD(PRIV, CLASS_SPECIFIC_CODE) \
JS_BEGIN_MACRO \
if (sym) { \
if (sym->entry.value == sprop) \
return sym; \
if (sym->entry.value) \
js_free_symbol(PRIV, &sym->entry, HT_FREE_VALUE); \
} else { \
CLASS_SPECIFIC_CODE \
sym->scope = scope; \
sym->next = NULL; \
} \
if (sprop) { \
sym->entry.value = js_HoldScopeProperty(cx, scope, sprop); \
for (sp = &sprop->symbols; *sp; sp = &(*sp)->next) \
; \
*sp = sym; \
} else { \
sym->entry.value = NULL; \
} \
JS_END_MACRO
JS_STATIC_DLL_CALLBACK(JSSymbol *)
js_hash_scope_add(JSContext *cx, JSScope *scope, jsid id, JSScopeProperty *sprop)
{
JSHashTable *table = scope->data;
const void *key;
JSHashNumber keyHash;
JSHashEntry **hep;
JSSymbol *sym, **sp;
JSScopePrivate *priv;
JS_ASSERT(JS_IS_SCOPE_LOCKED(scope));
priv = table->allocPriv;
priv->context = cx;
key = (const void *)id;
keyHash = js_hash_id(key);
hep = JS_HashTableRawLookup(table, keyHash, key);
sym = (JSSymbol *) *hep;
SCOPE_ADD(priv,
sym = (JSSymbol *) JS_HashTableRawAdd(table, hep, keyHash, key, NULL);
if (!sym)
return NULL;
);
return sym;
}
JS_STATIC_DLL_CALLBACK(JSBool)
js_hash_scope_remove(JSContext *cx, JSScope *scope, jsid id)
{
JSHashTable *table = scope->data;
JSScopePrivate *priv;
JS_ASSERT(JS_IS_SCOPE_LOCKED(scope));
priv = table->allocPriv;
priv->context = cx;
return JS_HashTableRemove(table, (const void *)id);
}
/* Forward declaration for use by js_hash_scope_clear(). */
extern JS_FRIEND_DATA(JSScopeOps) js_list_scope_ops;
JS_STATIC_DLL_CALLBACK(void)
js_hash_scope_clear(JSContext *cx, JSScope *scope)
{
JSHashTable *table = scope->data;
JSScopePrivate *priv;
JS_ASSERT(JS_IS_SCOPE_LOCKED(scope));
priv = table->allocPriv;
priv->context = cx;
JS_HashTableDestroy(table);
JS_free(cx, priv);
scope->ops = &js_list_scope_ops;
scope->data = NULL;
}
JSScopeOps js_hash_scope_ops = {
js_hash_scope_lookup,
js_hash_scope_add,
js_hash_scope_remove,
js_hash_scope_clear
};
/************************************************************************/
static void
move_sym_to_front(JSSymbol *sym, JSSymbol **nextp, JSSymbol **front)
{
*nextp = (JSSymbol*)sym->entry.next;
sym->entry.next = &(*front)->entry;
*front = sym;
}
JS_STATIC_DLL_CALLBACK(JSSymbol *)
js_list_scope_lookup(JSContext *cx, JSScope *scope, jsid id, JSHashNumber hash)
{
JSSymbol *sym, **sp;
JS_ASSERT(JS_IS_SCOPE_LOCKED(scope));
for (sp = (JSSymbol **)&scope->data; (sym = *sp) != 0;
sp = (JSSymbol **)&sym->entry.next) {
if (sym_id(sym) == id) {
/* Move sym to the front for shorter searches. */
move_sym_to_front(sym,sp,(JSSymbol**)&scope->data);
return sym;
}
}
return NULL;
}
#define HASH_THRESHOLD 5
JS_STATIC_DLL_CALLBACK(JSSymbol *)
js_list_scope_add(JSContext *cx, JSScope *scope, jsid id, JSScopeProperty *sprop)
{
JSSymbol *list = scope->data;
uint32 nsyms;
JSSymbol *sym, *next, **sp;
JSHashTable *table;
JSHashEntry **hep;
JSScopePrivate priv;
JS_ASSERT(JS_IS_SCOPE_LOCKED(scope));
nsyms = 0;
for (sym = list; sym; sym = (JSSymbol *)sym->entry.next) {
if (sym_id(sym) == id)
break;
nsyms++;
}
if (nsyms >= HASH_THRESHOLD) {
JSScopePrivate *new_priv = JS_malloc(cx, sizeof(JSScopePrivate));
if (!new_priv) return NULL;
new_priv->context = cx;
new_priv->scope = scope;
table = JS_NewHashTable(nsyms, js_hash_id,
JS_CompareValues, JS_CompareValues,
&hash_scope_alloc_ops, new_priv);
if (table) {
for (sym = list; sym; sym = next) {
/* Save next for loop update, before it changes in lookup. */
next = (JSSymbol *)sym->entry.next;
/* Now compute missing keyHash fields. */
sym->entry.keyHash = js_hash_id(sym->entry.key);
sym->entry.next = NULL;
hep = JS_HashTableRawLookup(table,
sym->entry.keyHash,
sym->entry.key);
*hep = &sym->entry;
}
table->nentries = nsyms;
scope->ops = &js_hash_scope_ops;
scope->data = table;
return scope->ops->add(cx, scope, id, sprop);
}
}
priv.context = cx;
priv.scope = scope;
SCOPE_ADD(&priv,
sym = (JSSymbol *)js_alloc_symbol(&priv, (const void *)id);
if (!sym)
return NULL;
/* Don't set keyHash until we know we need it, above. */
sym->entry.next = scope->data;
scope->data = sym;
);
return sym;
}
JS_STATIC_DLL_CALLBACK(JSBool)
js_list_scope_remove(JSContext *cx, JSScope *scope, jsid id)
{
JSSymbol *sym, **sp;
JSScopePrivate priv;
JS_ASSERT(JS_IS_SCOPE_LOCKED(scope));
for (sp = (JSSymbol **)&scope->data; (sym = *sp) != 0;
sp = (JSSymbol **)&sym->entry.next) {
if (sym_id(sym) == id) {
*sp = (JSSymbol *)sym->entry.next;
priv.context = cx;
priv.scope = scope;
js_free_symbol(&priv, &sym->entry, HT_FREE_ENTRY);
return JS_TRUE;
}
}
return JS_FALSE;
}
JS_STATIC_DLL_CALLBACK(void)
js_list_scope_clear(JSContext *cx, JSScope *scope)
{
JSSymbol *sym;
JSScopePrivate priv;
JS_ASSERT(JS_IS_SCOPE_LOCKED(scope));
while ((sym = scope->data) != NULL) {
scope->data = sym->entry.next;
priv.context = cx;
priv.scope = scope;
js_free_symbol(&priv, &sym->entry, HT_FREE_ENTRY);
}
}
JSScopeOps JS_FRIEND_DATA(js_list_scope_ops) = {
js_list_scope_lookup,
js_list_scope_add,
js_list_scope_remove,
js_list_scope_clear
};
/************************************************************************/
JSScope *
js_GetMutableScope(JSContext *cx, JSObject *obj)
{
JSScope *scope, *newscope;
scope = OBJ_SCOPE(obj);
JS_ASSERT(JS_IS_SCOPE_LOCKED(scope));
if (scope->object == obj)
return scope;
newscope = js_NewScope(cx, 0, scope->map.ops, LOCKED_OBJ_GET_CLASS(obj),
obj);
if (!newscope)
return NULL;
JS_LOCK_SCOPE(cx, newscope);
obj->map = js_HoldObjectMap(cx, &newscope->map);
scope = (JSScope *) js_DropObjectMap(cx, &scope->map, obj);
JS_TRANSFER_SCOPE_LOCK(cx, scope, newscope);
return newscope;
}
JSScope *
js_MutateScope(JSContext *cx, JSObject *obj, jsid id,
JSPropertyOp getter, JSPropertyOp setter, uintN attrs,
JSScopeProperty **propp)
{
/* XXX pessimal */
*propp = NULL;
return js_GetMutableScope(cx, obj);
}
JSScope *
js_NewScope(JSContext *cx, jsrefcount nrefs, JSObjectOps *ops, JSClass *clasp,
JSObject *obj)
{
JSScope *scope;
scope = JS_malloc(cx, sizeof(JSScope));
if (!scope)
return NULL;
js_InitObjectMap(&scope->map, nrefs, ops, clasp);
scope->object = obj;
scope->props = NULL;
scope->proptail = &scope->props;
scope->ops = &js_list_scope_ops;
scope->data = NULL;
#ifdef JS_THREADSAFE
js_NewLock(&scope->lock);
scope->count = 0;
#ifdef DEBUG
scope->file[0] = scope->file[1] = scope->file[2] = scope->file[3] = NULL;
scope->line[0] = scope->line[1] = scope->line[2] = scope->line[3] = 0;
#endif
#endif
return scope;
}
void
js_DestroyScope(JSContext *cx, JSScope *scope)
{
JS_LOCK_SCOPE(cx, scope);
scope->ops->clear(cx, scope);
JS_UNLOCK_SCOPE(cx, scope);
#ifdef JS_THREADSAFE
JS_ASSERT(scope->count == 0);
js_DestroyLock(&scope->lock);
#endif
JS_free(cx, scope);
}
JSHashNumber
js_HashValue(jsval v)
{
return js_hash_id((const void *)v);
}
jsval
js_IdToValue(jsid id)
{
JSAtom *atom;
if (JSVAL_IS_INT(id))
return id;
atom = (JSAtom *)id;
return ATOM_KEY(atom);
}
JSScopeProperty *
js_NewScopeProperty(JSContext *cx, JSScope *scope, jsid id,
JSPropertyOp getter, JSPropertyOp setter, uintN attrs)
{
uint32 slot;
JSScopeProperty *sprop;
JS_ASSERT(JS_IS_SCOPE_LOCKED(scope));
if (!js_AllocSlot(cx, scope->object, &slot))
return NULL;
sprop = JS_malloc(cx, sizeof(JSScopeProperty));
if (!sprop) {
js_FreeSlot(cx, scope->object, slot);
return NULL;
}
sprop->nrefs = 0;
sprop->id = js_IdToValue(id);
sprop->getter = getter;
sprop->setter = setter;
sprop->slot = slot;
sprop->attrs = attrs;
sprop->spare = 0;
sprop->symbols = NULL;
sprop->next = NULL;
sprop->prevp = scope->proptail;
*scope->proptail = sprop;
scope->proptail = &sprop->next;
return sprop;
}
void
js_DestroyScopeProperty(JSContext *cx, JSScope *scope, JSScopeProperty *sprop)
{
/*
* Test whether obj was finalized before prop's last dereference.
*
* This can happen when a deleted property is held by a property iterator
* object (which points to obj, keeping obj alive so long as the property
* iterator is reachable). As soon as the GC finds the iterator to be
* unreachable, it will finalize the iterator, and may also finalize obj,
* in an unpredictable order. If obj is finalized first, its map will be
* null below, and we need only free prop.
*
* In the more typical case of a property whose last reference (from a
* symbol in obj's scope) goes away before obj is finalized, we must be
* sure to free prop's slot and unlink it from obj's property list.
*/
if (scope) {
JS_ASSERT(JS_IS_SCOPE_LOCKED(scope));
if (scope->object) {
js_FreeSlot(cx, scope->object, sprop->slot);
*sprop->prevp = sprop->next;
if (sprop->next)
sprop->next->prevp = sprop->prevp;
else
scope->proptail = sprop->prevp;
}
}
/* Purge any cached weak links to prop, then free it. */
js_FlushPropertyCacheByProp(cx, (JSProperty *)sprop);
JS_free(cx, sprop);
}
JSScopeProperty *
js_HoldScopeProperty(JSContext *cx, JSScope *scope, JSScopeProperty *sprop)
{
JS_ASSERT(JS_IS_SCOPE_LOCKED(scope));
if (sprop) {
JS_ASSERT(sprop->nrefs >= 0);
sprop->nrefs++;
}
return sprop;
}
JSScopeProperty *
js_DropScopeProperty(JSContext *cx, JSScope *scope, JSScopeProperty *sprop)
{
JS_ASSERT(JS_IS_SCOPE_LOCKED(scope));
if (sprop) {
JS_ASSERT(sprop->nrefs > 0);
if (--sprop->nrefs == 0) {
js_DestroyScopeProperty(cx, scope, sprop);
sprop = NULL;
}
}
return sprop;
}

182
mozilla/js/src/jsscope.h Normal file
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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
*
* The contents of this file are subject to the Netscape Public
* License Version 1.1 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.mozilla.org/NPL/
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express oqr
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* The Original Code is Mozilla Communicator client code, released
* March 31, 1998.
*
* The Initial Developer of the Original Code is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All
* Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the
* terms of the GNU Public License (the "GPL"), in which case the
* provisions of the GPL are applicable instead of those above.
* If you wish to allow use of your version of this file only
* under the terms of the GPL and not to allow others to use your
* version of this file under the NPL, indicate your decision by
* deleting the provisions above and replace them with the notice
* and other provisions required by the GPL. If you do not delete
* the provisions above, a recipient may use your version of this
* file under either the NPL or the GPL.
*/
#ifndef jsscope_h___
#define jsscope_h___
/*
* JS symbol tables.
*/
#include "jstypes.h"
#include "jshash.h" /* Added by JSIFY */
#include "jsobj.h"
#include "jsprvtd.h"
#include "jspubtd.h"
#ifndef JS_DOUBLE_HASHING
struct JSScopeOps {
JSSymbol * (*lookup)(JSContext *cx, JSScope *scope, jsid id,
JSHashNumber hash);
JSSymbol * (*add)(JSContext *cx, JSScope *scope, jsid id,
JSScopeProperty *sprop);
JSBool (*remove)(JSContext *cx, JSScope *scope, jsid id);
void (*clear)(JSContext *cx, JSScope *scope);
};
#endif
struct JSScope {
JSObjectMap map; /* base class state */
JSObject *object; /* object that owns this scope */
JSScopeProperty *props; /* property list in definition order */
JSScopeProperty **proptail; /* pointer to pointer to last prop */
#ifdef JS_DOUBLE_HASHING
uint32 tableLength;
JSScopeProperty *table;
uint32 gsTableLength; /* number of entries in gsTable */
JSPropertyOp gsTable[1]; /* actually, gsTableLength ops */
#else
JSScopeOps *ops; /* virtual operations */
void *data; /* private data specific to ops */
#endif
#ifdef JS_THREADSAFE
JSThinLock lock; /* binary semaphore protecting scope */
int32 count; /* entry count for reentrancy */
#ifdef DEBUG
const char *file[4]; /* file where lock was (re-)taken */
unsigned int line[4]; /* line where lock was (re-)taken */
#endif
#endif
};
#define OBJ_SCOPE(obj) ((JSScope *)(obj)->map)
#define SPROP_GETTER(sprop,obj) SPROP_GETTER_SCOPE(sprop, OBJ_SCOPE(obj))
#define SPROP_SETTER(sprop,obj) SPROP_SETTER_SCOPE(sprop, OBJ_SCOPE(obj))
#ifdef JS_DOUBLE_HASHING
struct JSScopeProperty {
jsid id;
uint32 slot; /* index in obj->slots vector */
uint8 attrs; /* attributes, see jsapi.h JSPROP_ */
uint8 getterIndex; /* getter and setter method indexes */
uint8 setterIndex; /* in JSScope.gsTable[] */
uint8 reserved;
JSScopeProperty *next; /* singly-linked list linkage */
};
#define SPROP_GETTER_SCOPE(sprop,scope) ((scope)->gsTable[(sprop)->getterIndex])
#define SPROP_SETTER_SCOPE(sprop,scope) ((scope)->gsTable[(sprop)->setterIndex])
#else /* !JS_DOUBLE_HASHING */
struct JSSymbol {
JSHashEntry entry; /* base class state */
JSScope *scope; /* pointer to owning scope */
JSSymbol *next; /* next in type-specific list */
};
#define sym_id(sym) ((jsid)(sym)->entry.key)
#define sym_atom(sym) ((JSAtom *)(sym)->entry.key)
#define sym_property(sym) ((JSScopeProperty *)(sym)->entry.value)
struct JSScopeProperty {
jsrefcount nrefs; /* number of referencing symbols */
jsval id; /* id passed to getter and setter */
JSPropertyOp getter; /* getter and setter methods */
JSPropertyOp setter;
uint32 slot; /* index in obj->slots vector */
uint8 attrs; /* attributes, see jsapi.h JSPROP_ */
uint8 spare; /* reserved for future use */
JSSymbol *symbols; /* list of aliasing symbols */
JSScopeProperty *next; /* doubly-linked list linkage */
JSScopeProperty **prevp;
};
#define SPROP_GETTER_SCOPE(sprop,scope) ((sprop)->getter)
#define SPROP_SETTER_SCOPE(sprop,scope) ((sprop)->setter)
#endif /* !JS_DOUBLE_HASHING */
/*
* These macros are designed to decouple getter and setter from sprop, by
* passing obj2 (in whose scope sprop lives, and in whose scope getter and
* setter might be stored apart from sprop -- say in scope->gsTable[i] for
* a compressed getter or setter index i that is stored in sprop).
*/
#define SPROP_GET(cx,sprop,obj,obj2,vp) \
(((sprop)->attrs & JSPROP_GETTER) \
? js_InternalCall(cx, obj, OBJECT_TO_JSVAL(SPROP_GETTER(sprop,obj2)), \
0, 0, vp) \
: SPROP_GETTER(sprop,obj2)(cx, OBJ_THIS_OBJECT(cx,obj), sprop->id, vp))
#define SPROP_SET(cx,sprop,obj,obj2,vp) \
(((sprop)->attrs & JSPROP_SETTER) \
? js_InternalCall(cx, obj, OBJECT_TO_JSVAL(SPROP_SETTER(sprop,obj2)), \
1, vp, vp) \
: SPROP_SETTER(sprop,obj2)(cx, OBJ_THIS_OBJECT(cx,obj), sprop->id, vp))
extern JSScope *
js_GetMutableScope(JSContext *cx, JSObject *obj);
extern JSScope *
js_MutateScope(JSContext *cx, JSObject *obj, jsid id,
JSPropertyOp getter, JSPropertyOp setter, uintN attrs,
JSScopeProperty **propp);
extern JSScope *
js_NewScope(JSContext *cx, jsrefcount nrefs, JSObjectOps *ops, JSClass *clasp,
JSObject *obj);
extern void
js_DestroyScope(JSContext *cx, JSScope *scope);
extern JSHashNumber
js_HashValue(jsval v);
extern jsval
js_IdToValue(jsid id);
extern JSScopeProperty *
js_NewScopeProperty(JSContext *cx, JSScope *scope, jsid id,
JSPropertyOp getter, JSPropertyOp setter, uintN attrs);
extern void
js_DestroyScopeProperty(JSContext *cx, JSScope *scope, JSScopeProperty *sprop);
extern JSScopeProperty *
js_HoldScopeProperty(JSContext *cx, JSScope *scope, JSScopeProperty *sprop);
extern JSScopeProperty *
js_DropScopeProperty(JSContext *cx, JSScope *scope, JSScopeProperty *sprop);
#endif /* jsscope_h___ */

869
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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
*
* The contents of this file are subject to the Netscape Public
* License Version 1.1 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.mozilla.org/NPL/
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express oqr
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* The Original Code is Mozilla Communicator client code, released
* March 31, 1998.
*
* The Initial Developer of the Original Code is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All
* Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the
* terms of the GNU Public License (the "GPL"), in which case the
* provisions of the GPL are applicable instead of those above.
* If you wish to allow use of your version of this file only
* under the terms of the GPL and not to allow others to use your
* version of this file under the NPL, indicate your decision by
* deleting the provisions above and replace them with the notice
* and other provisions required by the GPL. If you do not delete
* the provisions above, a recipient may use your version of this
* file under either the NPL or the GPL.
*/
/*
* JS script operations.
*/
#include "jsstddef.h"
#include <string.h>
#include "jstypes.h"
#include "jsutil.h" /* Added by JSIFY */
#include "jsprf.h"
#include "jsapi.h"
#include "jsatom.h"
#include "jscntxt.h"
#include "jsconfig.h"
#include "jsdbgapi.h"
#include "jsemit.h"
#include "jsfun.h"
#include "jsinterp.h"
#include "jsnum.h"
#include "jsopcode.h"
#include "jsscript.h"
#if JS_HAS_XDR
#include "jsxdrapi.h"
#endif
#if JS_HAS_SCRIPT_OBJECT
#if JS_HAS_TOSOURCE
static JSBool
script_toSource(JSContext *cx, JSObject *obj, uintN argc, jsval *argv,
jsval *rval)
{
JSScript *script;
size_t i, j, k, n;
char buf[16];
jschar *s, *t;
uint32 indent;
JSString *str;
if (!JS_InstanceOf(cx, obj, &js_ScriptClass, argv))
return JS_FALSE;
script = JS_GetPrivate(cx, obj);
/* Let n count the source string length, j the "front porch" length. */
j = JS_snprintf(buf, sizeof buf, "(new %s(", js_ScriptClass.name);
n = j + 2;
if (!script) {
/* Let k count the constructor argument string length. */
k = 0;
s = NULL; /* quell GCC overwarning */
} else {
indent = 0;
if (argc && !js_ValueToECMAUint32(cx, argv[0], &indent))
return JS_FALSE;
str = JS_DecompileScript(cx, script, "Script.prototype.toSource",
(uintN)indent);
if (!str)
return JS_FALSE;
str = js_QuoteString(cx, str, '\'');
if (!str)
return JS_FALSE;
s = str->chars;
k = str->length;
n += k;
}
/* Allocate the source string and copy into it. */
t = JS_malloc(cx, (n + 1) * sizeof(jschar));
if (!t)
return JS_FALSE;
for (i = 0; i < j; i++)
t[i] = buf[i];
for (j = 0; j < k; i++, j++)
t[i] = s[j];
t[i++] = ')';
t[i++] = ')';
t[i] = 0;
/* Create and return a JS string for t. */
str = JS_NewUCString(cx, t, n);
if (!str) {
JS_free(cx, t);
return JS_FALSE;
}
*rval = STRING_TO_JSVAL(str);
return JS_TRUE;
}
#endif /* JS_HAS_TOSOURCE */
static JSBool
script_toString(JSContext *cx, JSObject *obj, uintN argc, jsval *argv,
jsval *rval)
{
JSScript *script;
uint32 indent;
JSString *str;
if (!JS_InstanceOf(cx, obj, &js_ScriptClass, argv))
return JS_FALSE;
script = JS_GetPrivate(cx, obj);
if (!script) {
*rval = STRING_TO_JSVAL(cx->runtime->emptyString);
return JS_TRUE;
}
indent = 0;
if (argc && !js_ValueToECMAUint32(cx, argv[0], &indent))
return JS_FALSE;
str = JS_DecompileScript(cx, script, "Script.prototype.toString",
(uintN)indent);
if (!str)
return JS_FALSE;
*rval = STRING_TO_JSVAL(str);
return JS_TRUE;
}
static JSBool
script_compile(JSContext *cx, JSObject *obj, uintN argc, jsval *argv,
jsval *rval)
{
JSScript *oldscript, *script;
JSString *str;
JSStackFrame *fp, *caller;
JSObject *scopeobj;
const char *file;
uintN line;
JSPrincipals *principals;
/* If no args, leave private undefined and return early. */
if (argc == 0)
goto out;
/* Otherwise, the first arg is the script source to compile. */
str = js_ValueToString(cx, argv[0]);
if (!str)
return JS_FALSE;
/* Compile using the caller's scope chain, which js_Invoke passes to fp. */
fp = cx->fp;
caller = fp->down;
JS_ASSERT(fp->scopeChain == caller->scopeChain);
scopeobj = NULL;
if (argc >= 2) {
if (!js_ValueToObject(cx, argv[1], &scopeobj))
return JS_FALSE;
argv[1] = OBJECT_TO_JSVAL(scopeobj);
}
if (!scopeobj)
scopeobj = caller->scopeChain;
if (caller->script) {
file = caller->script->filename;
line = js_PCToLineNumber(caller->script, caller->pc);
principals = caller->script->principals;
} else {
file = NULL;
line = 0;
principals = NULL;
}
/* Compile the new script using the caller's scope chain, a la eval(). */
script = JS_CompileUCScriptForPrincipals(cx, scopeobj, principals,
str->chars, str->length,
file, line);
if (!script)
return JS_FALSE;
/* Swap script for obj's old script, if any. */
oldscript = JS_GetPrivate(cx, obj);
if (!JS_SetPrivate(cx, obj, script)) {
js_DestroyScript(cx, script);
return JS_FALSE;
}
if (oldscript)
js_DestroyScript(cx, oldscript);
script->object = obj;
out:
/* Return the object. */
*rval = OBJECT_TO_JSVAL(obj);
return JS_TRUE;
}
static JSBool
script_exec(JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval)
{
JSScript *script;
JSStackFrame *fp, *caller;
JSObject *scopeobj;
if (!JS_InstanceOf(cx, obj, &js_ScriptClass, argv))
return JS_FALSE;
script = JS_GetPrivate(cx, obj);
if (!script)
return JS_TRUE;
scopeobj = NULL;
if (argc) {
if (!js_ValueToObject(cx, argv[0], &scopeobj))
return JS_FALSE;
argv[0] = OBJECT_TO_JSVAL(scopeobj);
}
/* Emulate eval() by using caller's this, scope chain, and sharp array. */
fp = cx->fp;
caller = fp->down;
if (!scopeobj)
scopeobj = caller->scopeChain;
fp->thisp = caller->thisp;
JS_ASSERT(fp->scopeChain == caller->scopeChain);
fp->sharpArray = caller->sharpArray;
return js_Execute(cx, scopeobj, script, NULL, fp, 0, rval);
}
#if JS_HAS_XDR
static JSBool
XDRAtom1(JSXDRState *xdr, JSAtomListElement *ale)
{
jsval value;
jsatomid index;
if (xdr->mode == JSXDR_ENCODE)
value = ATOM_KEY(ALE_ATOM(ale));
index = ALE_INDEX(ale);
if (!JS_XDRUint32(xdr, &index))
return JS_FALSE;
ALE_SET_INDEX(ale, index);
if (!JS_XDRValue(xdr, &value))
return JS_FALSE;
if (xdr->mode == JSXDR_DECODE) {
if (!ALE_SET_ATOM(ale, js_AtomizeValue(xdr->cx, value, 0)))
return JS_FALSE;
}
return JS_TRUE;
}
static JSBool
XDRAtomMap(JSXDRState *xdr, JSAtomMap *map)
{
uint32 length;
uintN i;
JSBool ok;
if (xdr->mode == JSXDR_ENCODE)
length = map->length;
if (!JS_XDRUint32(xdr, &length))
return JS_FALSE;
if (xdr->mode == JSXDR_DECODE) {
JSContext *cx;
void *mark;
JSAtomList al;
JSAtomListElement *ale;
cx = xdr->cx;
mark = JS_ARENA_MARK(&cx->tempPool);
ATOM_LIST_INIT(&al);
for (i = 0; i < length; i++) {
JS_ARENA_ALLOCATE(ale, &cx->tempPool, sizeof(*ale));
if (!ale ||
!XDRAtom1(xdr, ale)) {
if (!ale)
JS_ReportOutOfMemory(cx);
JS_ARENA_RELEASE(&cx->tempPool, mark);
return JS_FALSE;
}
ALE_SET_NEXT(ale, al.list);
al.count++;
al.list = ale;
}
ok = js_InitAtomMap(cx, map, &al);
JS_ARENA_RELEASE(&cx->tempPool, mark);
return ok;
}
if (xdr->mode == JSXDR_ENCODE) {
JSAtomListElement ale;
for (i = 0; i < map->length; i++) {
ALE_SET_ATOM(&ale, map->vector[i]);
ALE_SET_INDEX(&ale, i);
if (!XDRAtom1(xdr, &ale))
return JS_FALSE;
}
}
return JS_TRUE;
}
JSBool
js_XDRScript(JSXDRState *xdr, JSScript **scriptp, JSBool *hasMagic)
{
JSScript *script;
uint32 length, lineno, depth, magic, notelen, numtrys;
uint32 prologLength, version;
script = *scriptp;
numtrys = 0;
/*
* Encode prologLength and version after script->length (_2), but decode
* both new (_2) and old, prolog&version-free (_1) scripts.
*/
if (xdr->mode == JSXDR_ENCODE)
magic = JSXDR_MAGIC_SCRIPT_CURRENT;
if (!JS_XDRUint32(xdr, &magic))
return JS_FALSE;
if (magic != JSXDR_MAGIC_SCRIPT_2 && magic != JSXDR_MAGIC_SCRIPT_1) {
*hasMagic = JS_FALSE;
return JS_TRUE;
}
*hasMagic = JS_TRUE;
if (xdr->mode == JSXDR_ENCODE) {
jssrcnote *end = script->notes;
length = script->length;
prologLength = script->main - script->code;
version = (int32) script->version;
lineno = (uint32)script->lineno;
depth = (uint32)script->depth;
/* Count the trynotes. */
if (script->trynotes) {
for (; script->trynotes[numtrys].catchStart; numtrys++)
continue;
numtrys++; /* room for the end marker */
}
/* Count the src notes. */
while (!SN_IS_TERMINATOR(end))
end = SN_NEXT(end);
notelen = end - script->notes;
}
if (!JS_XDRUint32(xdr, &length))
return JS_FALSE;
if (magic == JSXDR_MAGIC_SCRIPT_2) {
if (!JS_XDRUint32(xdr, &prologLength))
return JS_FALSE;
if (!JS_XDRUint32(xdr, (uint32 *) &version))
return JS_FALSE;
}
if (xdr->mode == JSXDR_DECODE) {
script = js_NewScript(xdr->cx, length);
if (!script)
return JS_FALSE;
if (magic == JSXDR_MAGIC_SCRIPT_2) {
script->main += prologLength;
script->version = (JSVersion) version;
}
*scriptp = script;
}
if (!JS_XDRBytes(xdr, (char **)&script->code, length) ||
!XDRAtomMap(xdr, &script->atomMap) ||
!JS_XDRUint32(xdr, &notelen) ||
/* malloc on decode only */
(!(xdr->mode == JSXDR_ENCODE ||
(script->notes = JS_malloc(xdr->cx, notelen)) != NULL)) ||
!JS_XDRBytes(xdr, (char **)&script->notes, notelen) ||
!JS_XDRCStringOrNull(xdr, (char **)&script->filename) ||
!JS_XDRUint32(xdr, &lineno) ||
!JS_XDRUint32(xdr, &depth) ||
!JS_XDRUint32(xdr, &numtrys)) {
goto error;
}
if (xdr->mode == JSXDR_DECODE) {
script->lineno = (uintN)lineno;
script->depth = (uintN)depth;
if (numtrys) {
script->trynotes = JS_malloc(xdr->cx,
sizeof(JSTryNote) * (numtrys + 1));
if (!script->trynotes)
goto error;
} else {
script->trynotes = NULL;
}
}
for (; numtrys; numtrys--) {
JSTryNote *tn = &script->trynotes[numtrys - 1];
if (!JS_XDRUint32(xdr, (uint32*)&tn->start) ||
!JS_XDRUint32(xdr, (uint32*)&tn->length) ||
!JS_XDRUint32(xdr, (uint32*)&tn->catchStart)) {
goto error;
}
}
return JS_TRUE;
error:
if (xdr->mode == JSXDR_DECODE) {
js_DestroyScript(xdr->cx, script);
*scriptp = NULL;
}
return JS_FALSE;
}
static JSBool
script_freeze(JSContext *cx, JSObject *obj, uintN argc, jsval *argv,
jsval *rval)
{
JSXDRState *xdr;
JSScript *script;
JSBool ok, hasMagic;
uint32 len;
void *buf;
JSString *str;
if (!JS_InstanceOf(cx, obj, &js_ScriptClass, argv))
return JS_FALSE;
script = JS_GetPrivate(cx, obj);
if (!script)
return JS_TRUE;
/* create new XDR */
xdr = JS_XDRNewMem(cx, JSXDR_ENCODE);
if (!xdr)
return JS_FALSE;
/* write */
ok = js_XDRScript(xdr, &script, &hasMagic);
if (!ok)
goto out;
if (!hasMagic) {
*rval = JSVAL_VOID;
goto out;
}
buf = JS_XDRMemGetData(xdr, &len);
if (!buf) {
ok = JS_FALSE;
goto out;
}
JS_ASSERT((jsword)buf % sizeof(jschar) == 0);
len /= sizeof(jschar);
str = JS_NewUCStringCopyN(cx, (jschar *)buf, len);
if (!str) {
ok = JS_FALSE;
goto out;
}
#if IS_BIG_ENDIAN
{
jschar *chars;
uint32 i;
/* Swap bytes in Unichars to keep frozen strings machine-independent. */
chars = JS_GetStringChars(str);
for (i = 0; i < len; i++)
chars[i] = JSXDR_SWAB16(chars[i]);
}
#endif
*rval = STRING_TO_JSVAL(str);
out:
JS_XDRDestroy(xdr);
return ok;
}
static JSBool
script_thaw(JSContext *cx, JSObject *obj, uintN argc, jsval *argv,
jsval *rval)
{
JSXDRState *xdr;
JSString *str;
void *buf;
uint32 len;
JSScript *script, *oldscript;
JSBool ok, hasMagic;
if (!JS_InstanceOf(cx, obj, &js_ScriptClass, argv))
return JS_FALSE;
if (argc == 0)
return JS_TRUE;
str = js_ValueToString(cx, argv[0]);
if (!str)
return JS_FALSE;
/* create new XDR */
xdr = JS_XDRNewMem(cx, JSXDR_DECODE);
if (!xdr)
return JS_FALSE;
buf = JS_GetStringChars(str);
len = JS_GetStringLength(str);
#if IS_BIG_ENDIAN
{
jschar *from, *to;
uint32 i;
/* Swap bytes in Unichars to keep frozen strings machine-independent. */
from = (jschar *)buf;
to = JS_malloc(cx, len * sizeof(jschar));
if (!to)
return JS_FALSE;
for (i = 0; i < len; i++)
to[i] = JSXDR_SWAB16(from[i]);
buf = (char *)to;
}
#endif
len *= sizeof(jschar);
JS_XDRMemSetData(xdr, buf, len);
/* XXXbe should magic mismatch be error, or false return value? */
ok = js_XDRScript(xdr, &script, &hasMagic);
if (!ok)
goto out;
if (!hasMagic) {
*rval = JSVAL_FALSE;
goto out;
}
/* Swap script for obj's old script, if any. */
oldscript = JS_GetPrivate(cx, obj);
ok = JS_SetPrivate(cx, obj, script);
if (!ok) {
JS_free(cx, script);
goto out;
}
if (oldscript)
js_DestroyScript(cx, oldscript);
script->object = obj;
out:
/*
* We reset the buffer to be NULL so that it doesn't free the chars
* memory owned by str (argv[0]).
*/
JS_XDRMemSetData(xdr, NULL, 0);
JS_XDRDestroy(xdr);
#if IS_BIG_ENDIAN
JS_free(cx, buf);
#endif
*rval = JSVAL_TRUE;
return ok;
}
#endif /* JS_HAS_XDR */
static char js_thaw_str[] = "thaw";
static JSFunctionSpec script_methods[] = {
#if JS_HAS_TOSOURCE
{js_toSource_str, script_toSource, 0,0,0},
#endif
{js_toString_str, script_toString, 0,0,0},
{"compile", script_compile, 2,0,0},
{"exec", script_exec, 1,0,0},
#if JS_HAS_XDR
{"freeze", script_freeze, 0,0,0},
{js_thaw_str, script_thaw, 1,0,0},
#endif /* JS_HAS_XDR */
{0,0,0,0,0}
};
#endif /* JS_HAS_SCRIPT_OBJECT */
static void
script_finalize(JSContext *cx, JSObject *obj)
{
JSScript *script;
script = JS_GetPrivate(cx, obj);
if (script)
js_DestroyScript(cx, script);
}
static JSBool
script_call(JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval)
{
return script_exec(cx, JSVAL_TO_OBJECT(argv[-2]), argc, argv, rval);
}
JS_FRIEND_DATA(JSClass) js_ScriptClass = {
"Script",
JSCLASS_HAS_PRIVATE,
JS_PropertyStub, JS_PropertyStub, JS_PropertyStub, JS_PropertyStub,
JS_EnumerateStub, JS_ResolveStub, JS_ConvertStub, script_finalize,
NULL, NULL, script_call, NULL,/*XXXbe xdr*/
0,0,{0,0}
};
#if JS_HAS_SCRIPT_OBJECT
static JSBool
Script(JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval)
{
/* If not constructing, replace obj with a new Script object. */
if (!cx->fp->constructing) {
obj = js_NewObject(cx, &js_ScriptClass, NULL, NULL);
if (!obj)
return JS_FALSE;
}
return script_compile(cx, obj, argc, argv, rval);
}
#if JS_HAS_XDR
static JSBool
script_static_thaw(JSContext *cx, JSObject *obj, uintN argc, jsval *argv,
jsval *rval)
{
obj = js_NewObject(cx, &js_ScriptClass, NULL, NULL);
if (!obj)
return JS_FALSE;
if (!script_thaw(cx, obj, argc, argv, rval))
return JS_FALSE;
*rval = OBJECT_TO_JSVAL(obj);
return JS_TRUE;
}
static JSFunctionSpec script_static_methods[] = {
{js_thaw_str, script_static_thaw, 1,0,0},
{0,0,0,0,0}
};
#else /* !JS_HAS_XDR */
#define script_static_methods NULL
#endif /* !JS_HAS_XDR */
JSObject *
js_InitScriptClass(JSContext *cx, JSObject *obj)
{
return JS_InitClass(cx, obj, NULL, &js_ScriptClass, Script, 1,
NULL, script_methods, NULL, script_static_methods);
}
#endif /* JS_HAS_SCRIPT_OBJECT */
JSScript *
js_NewScript(JSContext *cx, uint32 length)
{
JSScript *script;
script = JS_malloc(cx, sizeof(JSScript) + length * sizeof(jsbytecode));
if (!script)
return NULL;
memset(script, 0, sizeof(JSScript));
script->code = script->main = (jsbytecode *)(script + 1);
script->length = length;
script->version = cx->version;
return script;
}
JSScript *
js_NewScriptFromParams(JSContext *cx, jsbytecode *code, uint32 length,
jsbytecode *prolog, uint32 prologLength,
const char *filename, uintN lineno, uintN depth,
jssrcnote *notes, JSTryNote *trynotes,
JSPrincipals *principals)
{
JSScript *script;
script = js_NewScript(cx, prologLength + length);
if (!script)
return NULL;
script->main += prologLength;
memcpy(script->code, prolog, prologLength * sizeof(jsbytecode));
memcpy(script->main, code, length * sizeof(jsbytecode));
if (filename) {
script->filename = JS_strdup(cx, filename);
if (!script->filename) {
js_DestroyScript(cx, script);
return NULL;
}
}
script->lineno = lineno;
script->depth = depth;
script->notes = notes;
script->trynotes = trynotes;
if (principals)
JSPRINCIPALS_HOLD(cx, principals);
script->principals = principals;
return script;
}
JS_FRIEND_API(JSScript *)
js_NewScriptFromCG(JSContext *cx, JSCodeGenerator *cg, JSFunction *fun)
{
JSTryNote *trynotes;
jssrcnote *notes;
JSScript *script;
JSRuntime *rt;
JSNewScriptHook hook;
if (!js_FinishTakingTryNotes(cx, cg, &trynotes))
return NULL;
notes = js_FinishTakingSrcNotes(cx, cg);
script = js_NewScriptFromParams(cx, CG_BASE(cg), CG_OFFSET(cg),
CG_PROLOG_BASE(cg), CG_PROLOG_OFFSET(cg),
cg->filename, cg->firstLine,
cg->maxStackDepth, notes, trynotes,
cg->principals);
if (!script)
return NULL;
if (!notes || !js_InitAtomMap(cx, &script->atomMap, &cg->atomList)) {
js_DestroyScript(cx, script);
return NULL;
}
/* Tell the debugger about this compiled script. */
rt = cx->runtime;
hook = rt->newScriptHook;
if (hook) {
(*hook)(cx, cg->filename, cg->firstLine, script, fun,
rt->newScriptHookData);
}
return script;
}
void
js_DestroyScript(JSContext *cx, JSScript *script)
{
JSRuntime *rt;
JSDestroyScriptHook hook;
rt = cx->runtime;
hook = rt->destroyScriptHook;
if (hook)
(*hook)(cx, script, rt->destroyScriptHookData);
JS_ClearScriptTraps(cx, script);
js_FreeAtomMap(cx, &script->atomMap);
JS_free(cx, (void *)script->filename);
JS_free(cx, script->notes);
JS_free(cx, script->trynotes);
if (script->principals)
JSPRINCIPALS_DROP(cx, script->principals);
JS_free(cx, script);
}
jssrcnote *
js_GetSrcNote(JSScript *script, jsbytecode *pc)
{
jssrcnote *sn;
ptrdiff_t offset, target;
sn = script->notes;
if (!sn)
return NULL;
target = PTRDIFF(pc, script->main, jsbytecode);
if ((uintN)target >= script->length)
return NULL;
for (offset = 0; !SN_IS_TERMINATOR(sn); sn = SN_NEXT(sn)) {
offset += SN_DELTA(sn);
if (offset == target && SN_IS_GETTABLE(sn))
return sn;
}
return NULL;
}
uintN
js_PCToLineNumber(JSScript *script, jsbytecode *pc)
{
jssrcnote *sn;
ptrdiff_t offset, target;
uintN lineno;
JSSrcNoteType type;
sn = script->notes;
if (!sn)
return 0;
target = PTRDIFF(pc, script->main, jsbytecode);
lineno = script->lineno;
for (offset = 0; !SN_IS_TERMINATOR(sn); sn = SN_NEXT(sn)) {
offset += SN_DELTA(sn);
type = SN_TYPE(sn);
if (type == SRC_SETLINE) {
if (offset <= target)
lineno = (uintN) js_GetSrcNoteOffset(sn, 0);
} else if (type == SRC_NEWLINE) {
if (offset <= target)
lineno++;
}
if (offset > target)
break;
}
return lineno;
}
jsbytecode *
js_LineNumberToPC(JSScript *script, uintN target)
{
jssrcnote *sn;
uintN lineno;
ptrdiff_t offset;
JSSrcNoteType type;
sn = script->notes;
if (!sn)
return NULL;
lineno = script->lineno;
for (offset = 0; !SN_IS_TERMINATOR(sn); sn = SN_NEXT(sn)) {
if (lineno >= target)
break;
offset += SN_DELTA(sn);
type = SN_TYPE(sn);
if (type == SRC_SETLINE) {
lineno = (uintN) js_GetSrcNoteOffset(sn, 0);
} else if (type == SRC_NEWLINE) {
lineno++;
}
}
return script->main + offset;
}
uintN
js_GetScriptLineExtent(JSScript *script)
{
jssrcnote *sn;
uintN lineno;
JSSrcNoteType type;
sn = script->notes;
if (!sn)
return 0;
lineno = script->lineno;
for (; !SN_IS_TERMINATOR(sn); sn = SN_NEXT(sn)) {
type = SN_TYPE(sn);
if (type == SRC_SETLINE) {
lineno = (uintN) js_GetSrcNoteOffset(sn, 0);
} else if (type == SRC_NEWLINE) {
lineno++;
}
}
return 1 + lineno - script->lineno;
}

111
mozilla/js/src/jsscript.h Normal file
View File

@@ -0,0 +1,111 @@
/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
*
* The contents of this file are subject to the Netscape Public
* License Version 1.1 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.mozilla.org/NPL/
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express oqr
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* The Original Code is Mozilla Communicator client code, released
* March 31, 1998.
*
* The Initial Developer of the Original Code is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All
* Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the
* terms of the GNU Public License (the "GPL"), in which case the
* provisions of the GPL are applicable instead of those above.
* If you wish to allow use of your version of this file only
* under the terms of the GPL and not to allow others to use your
* version of this file under the NPL, indicate your decision by
* deleting the provisions above and replace them with the notice
* and other provisions required by the GPL. If you do not delete
* the provisions above, a recipient may use your version of this
* file under either the NPL or the GPL.
*/
#ifndef jsscript_h___
#define jsscript_h___
/*
* JS script descriptor.
*/
#include "jsatom.h"
#include "jsprvtd.h"
JS_BEGIN_EXTERN_C
/*
* Exception handling runtime information.
*
* All fields except length are code offsets, relative to the beginning of
* the script. If script->trynotes is not null, it points to a vector of
* these structs terminated by one with catchStart == 0.
*/
struct JSTryNote {
ptrdiff_t start; /* start of try statement */
ptrdiff_t length; /* count of try statement bytecodes */
ptrdiff_t catchStart; /* start of catch block (0 if end) */
};
struct JSScript {
jsbytecode *code; /* bytecodes and their immediate operands */
uint32 length; /* length of code vector */
jsbytecode *main; /* main entry point, after predef'ing prolog */
JSVersion version; /* JS version under which script was compiled */
JSAtomMap atomMap; /* maps immediate index to literal struct */
const char *filename; /* source filename or null */
uintN lineno; /* base line number of script */
uintN depth; /* maximum stack depth in slots */
jssrcnote *notes; /* line number and other decompiling data */
JSTryNote *trynotes; /* exception table for this script */
JSPrincipals *principals; /* principals for this script */
JSObject *object; /* optional Script-class object wrapper */
};
extern JS_FRIEND_DATA(JSClass) js_ScriptClass;
extern JSObject *
js_InitScriptClass(JSContext *cx, JSObject *obj);
extern JSScript *
js_NewScript(JSContext *cx, uint32 length);
extern JSScript *
js_NewScriptFromParams(JSContext *cx, jsbytecode *code, uint32 length,
jsbytecode *prolog, uint32 prologLength,
const char *filename, uintN lineno, uintN depth,
jssrcnote *notes, JSTryNote *trynotes,
JSPrincipals *principals);
extern JS_FRIEND_API(JSScript *)
js_NewScriptFromCG(JSContext *cx, JSCodeGenerator *cg, JSFunction *fun);
extern void
js_DestroyScript(JSContext *cx, JSScript *script);
extern jssrcnote *
js_GetSrcNote(JSScript *script, jsbytecode *pc);
extern uintN
js_PCToLineNumber(JSScript *script, jsbytecode *pc);
extern jsbytecode *
js_LineNumberToPC(JSScript *script, uintN lineno);
extern uintN
js_GetScriptLineExtent(JSScript *script);
extern JSBool
js_XDRScript(JSXDRState *xdr, JSScript **scriptp, JSBool *magic);
JS_END_EXTERN_C
#endif /* jsscript_h___ */

View File

@@ -0,0 +1,45 @@
/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
*
* The contents of this file are subject to the Netscape Public
* License Version 1.1 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.mozilla.org/NPL/
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express oqr
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* The Original Code is Mozilla Communicator client code, released
* March 31, 1998.
*
* The Initial Developer of the Original Code is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All
* Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the
* terms of the GNU Public License (the "GPL"), in which case the
* provisions of the GPL are applicable instead of those above.
* If you wish to allow use of your version of this file only
* under the terms of the GPL and not to allow others to use your
* version of this file under the NPL, indicate your decision by
* deleting the provisions above and replace them with the notice
* and other provisions required by the GPL. If you do not delete
* the provisions above, a recipient may use your version of this
* file under either the NPL or the GPL.
*/
/*
Error messages for JSShell. See js.msg for format.
*/
MSG_DEF(JSSMSG_NOT_AN_ERROR, 0, 0, JSEXN_NONE, "<Error #0 is reserved>")
MSG_DEF(JSSMSG_CANT_OPEN, 1, 2, JSEXN_NONE, "can't open {0}: {1}")
MSG_DEF(JSSMSG_TRAP_USAGE, 2, 0, JSEXN_NONE, "usage: trap [fun] [pc] expr")
MSG_DEF(JSSMSG_LINE2PC_USAGE, 3, 0, JSEXN_NONE, "usage: line2pc [fun] line")
MSG_DEF(JSSMSG_FILE_SCRIPTS_ONLY, 4, 0, JSEXN_NONE, "only works on JS scripts read from files")
MSG_DEF(JSSMSG_UNEXPECTED_EOF, 5, 1, JSEXN_NONE, "unexpected EOF in {0}")
MSG_DEF(JSSMSG_DOEXP_USAGE, 6, 0, JSEXN_NONE, "usage: doexp obj id")

78
mozilla/js/src/jsstddef.h Normal file
View File

@@ -0,0 +1,78 @@
/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
*
* The contents of this file are subject to the Netscape Public
* License Version 1.1 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.mozilla.org/NPL/
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express oqr
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* The Original Code is Mozilla Communicator client code, released
* March 31, 1998.
*
* The Initial Developer of the Original Code is Netscape Communications
* Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All
* Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the
* terms of the GNU Public License (the "GPL"), in which case the
* provisions of the GPL are applicable instead of those above.
* If you wish to allow use of your version of this file only
* under the terms of the GPL and not to allow others to use your
* version of this file under the NPL, indicate your decision by
* deleting the provisions above and replace them with the notice
* and other provisions required by the GPL. If you do not delete
* the provisions above, a recipient may use your version of this
* file under either the NPL or the GPL.
*/
/*
* stddef inclusion here to first declare ptrdif as a signed long instead of a
* signed int.
*/
#ifdef _WINDOWS
# ifndef XP_WIN
# define XP_WIN
# endif
#if defined(_WIN32) || defined(WIN32)
# ifndef XP_WIN32
# define XP_WIN32
# endif
#else
# ifndef XP_WIN16
# define XP_WIN16
# endif
#endif
#endif
#ifdef XP_WIN16
#ifndef _PTRDIFF_T_DEFINED
typedef long ptrdiff_t;
/*
* The Win16 compiler treats pointer differences as 16-bit signed values.
* This macro allows us to treat them as 17-bit signed values, stored in
* a 32-bit type.
*/
#define PTRDIFF(p1, p2, type) \
((((unsigned long)(p1)) - ((unsigned long)(p2))) / sizeof(type))
#define _PTRDIFF_T_DEFINED
#endif /*_PTRDIFF_T_DEFINED*/
#else /*WIN16*/
#define PTRDIFF(p1, p2, type) \
((p1) - (p2))
#endif
#include <stddef.h>

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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
*
* The contents of this file are subject to the Netscape Public
* License Version 1.1 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.mozilla.org/NPL/
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express oqr
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* The Original Code is Mozilla Communicator client code, released
* March 31, 1998.
*
* The Initial Developer of the Original Code is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All
* Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the
* terms of the GNU Public License (the "GPL"), in which case the
* provisions of the GPL are applicable instead of those above.
* If you wish to allow use of your version of this file only
* under the terms of the GPL and not to allow others to use your
* version of this file under the NPL, indicate your decision by
* deleting the provisions above and replace them with the notice
* and other provisions required by the GPL. If you do not delete
* the provisions above, a recipient may use your version of this
* file under either the NPL or the GPL.
*/
#ifndef jsstr_h___
#define jsstr_h___
/*
* JS string type implementation.
*
* A JS string is a counted array of unicode characters. To support handoff
* of API client memory, the chars are allocated separately from the length,
* necessitating a pointer after the count, to form a string header. String
* headers are GC'ed while string bytes are allocated from the malloc heap.
*
* When a string is treated as an object (by following it with . or []), the
* runtime wraps it with a JSObject whose valueOf method returns the unwrapped
* string header.
*/
#include <ctype.h>
#include "jspubtd.h"
#include "jsprvtd.h"
#include "jshash.h"
JS_BEGIN_EXTERN_C
struct JSString {
size_t length;
jschar *chars;
};
struct JSSubString {
size_t length;
const jschar *chars;
};
extern jschar js_empty_ucstr[];
extern JSSubString js_EmptySubString;
/* Unicode character attribute lookup tables. */
extern const uint8 js_X[];
extern const uint8 js_Y[];
extern const uint32 js_A[];
/* Enumerated Unicode general category types. */
typedef enum JSCharType {
JSCT_UNASSIGNED = 0,
JSCT_UPPERCASE_LETTER = 1,
JSCT_LOWERCASE_LETTER = 2,
JSCT_TITLECASE_LETTER = 3,
JSCT_MODIFIER_LETTER = 4,
JSCT_OTHER_LETTER = 5,
JSCT_NON_SPACING_MARK = 6,
JSCT_ENCLOSING_MARK = 7,
JSCT_COMBINING_SPACING_MARK = 8,
JSCT_DECIMAL_DIGIT_NUMBER = 9,
JSCT_LETTER_NUMBER = 10,
JSCT_OTHER_NUMBER = 11,
JSCT_SPACE_SEPARATOR = 12,
JSCT_LINE_SEPARATOR = 13,
JSCT_PARAGRAPH_SEPARATOR = 14,
JSCT_CONTROL = 15,
JSCT_FORMAT = 16,
JSCT_PRIVATE_USE = 18,
JSCT_SURROGATE = 19,
JSCT_DASH_PUNCTUATION = 20,
JSCT_START_PUNCTUATION = 21,
JSCT_END_PUNCTUATION = 22,
JSCT_CONNECTOR_PUNCTUATION = 23,
JSCT_OTHER_PUNCTUATION = 24,
JSCT_MATH_SYMBOL = 25,
JSCT_CURRENCY_SYMBOL = 26,
JSCT_MODIFIER_SYMBOL = 27,
JSCT_OTHER_SYMBOL = 28
} JSCharType;
/* Character classifying and mapping macros, based on java.lang.Character. */
#define JS_CCODE(c) (js_A[js_Y[(js_X[(uint16)(c)>>6]<<6)|((c)&0x3F)]])
#define JS_CTYPE(c) (JS_CCODE(c) & 0x1F)
#define JS_ISALPHA(c) ((((1 << JSCT_UPPERCASE_LETTER) | \
(1 << JSCT_LOWERCASE_LETTER) | \
(1 << JSCT_TITLECASE_LETTER) | \
(1 << JSCT_MODIFIER_LETTER) | \
(1 << JSCT_OTHER_LETTER)) \
>> JS_CTYPE(c)) & 1)
#define JS_ISALNUM(c) ((((1 << JSCT_UPPERCASE_LETTER) | \
(1 << JSCT_LOWERCASE_LETTER) | \
(1 << JSCT_TITLECASE_LETTER) | \
(1 << JSCT_MODIFIER_LETTER) | \
(1 << JSCT_OTHER_LETTER) | \
(1 << JSCT_DECIMAL_DIGIT_NUMBER)) \
>> JS_CTYPE(c)) & 1)
#define JS_ISWORD(c) (JS_ISALNUM(c) || (c) == '_')
/* XXXbe unify on A/X/Y tbls, avoid ctype.h? */
#define JS_ISIDENT(c) ((c) < 128 && (isalpha(c) || (c) == '_' || (c) == '$'))
#define JS_ISIDENT2(c) ((c) < 128 && (isalnum(c) || (c) == '_' || (c) == '$'))
#define JS_ISDIGIT(c) (JS_CTYPE(c) == JSCT_DECIMAL_DIGIT_NUMBER)
/* XXXbe fs, etc. ? */
#define JS_ISSPACE(c) ((JS_CCODE(c) & 0x00070000) == 0x00040000)
#define JS_ISPRINT(c) ((c) < 128 && isprint(c))
#define JS_ISUPPER(c) (JS_CTYPE(c) == JSCT_UPPERCASE_LETTER)
#define JS_ISLOWER(c) (JS_CTYPE(c) == JSCT_LOWERCASE_LETTER)
#define JS_TOUPPER(c) ((JS_CCODE(c) & 0x00100000) ? (c) - ((int32)JS_CCODE(c) >> 22) : (c))
#define JS_TOLOWER(c) ((JS_CCODE(c) & 0x00200000) ? (c) + ((int32)JS_CCODE(c) >> 22) : (c))
#define JS_TOCTRL(c) ((c) ^ 64) /* XXX unsafe! requires uppercase c */
/* Shorthands for ASCII (7-bit) decimal and hex conversion. */
#define JS7_ISDEC(c) ((c) < 128 && isdigit(c))
#define JS7_UNDEC(c) ((c) - '0')
#define JS7_ISHEX(c) ((c) < 128 && isxdigit(c))
#define JS7_UNHEX(c) (uintN)(isdigit(c) ? (c) - '0' : 10 + tolower(c) - 'a')
#define JS7_ISLET(c) ((c) < 128 && isalpha(c))
/* Initialize truly global state associated with JS strings. */
extern JSBool
js_InitStringGlobals(void);
extern void
js_FreeStringGlobals(void);
/* Initialize the String class, returning its prototype object. */
extern JSObject *
js_InitStringClass(JSContext *cx, JSObject *obj);
/* GC-allocate a string descriptor for the given malloc-allocated chars. */
extern JSString *
js_NewString(JSContext *cx, jschar *chars, size_t length, uintN gcflag);
/* Copy a counted string and GC-allocate a descriptor for it. */
extern JSString *
js_NewStringCopyN(JSContext *cx, const jschar *s, size_t n, uintN gcflag);
/* Copy a C string and GC-allocate a descriptor for it. */
extern JSString *
js_NewStringCopyZ(JSContext *cx, const jschar *s, uintN gcflag);
/* Free the chars held by str when it is finalized by the GC. */
extern void
js_FinalizeString(JSContext *cx, JSString *str);
/* Wrap a string value in a String object. */
extern JSObject *
js_StringToObject(JSContext *cx, JSString *str);
/*
* Convert a value to a string, returning null after reporting an error,
* otherwise returning a new string reference.
*/
extern JSString *
js_ValueToString(JSContext *cx, jsval v);
/*
* Convert a value to its source expression, returning null after reporting
* an error, otherwise returning a new string reference.
*/
extern JSString *
js_ValueToSource(JSContext *cx, jsval v);
#ifdef HT_ENUMERATE_NEXT /* XXX don't require jshash.h */
/*
* Compute a hash function from str.
*/
extern JSHashNumber
js_HashString(const JSString *str);
#endif
/*
* Return less than, equal to, or greater than zero depending on whether
* str1 is less than, equal to, or greater than str2.
*/
extern intN
js_CompareStrings(const JSString *str1, const JSString *str2);
/*
* Boyer-Moore-Horspool superlinear search for pat:patlen in text:textlen.
* The patlen argument must be positive and no greater than BMH_PATLEN_MAX.
* The start argument tells where in text to begin the search.
*
* Return the index of pat in text, or -1 if not found.
*/
#define BMH_CHARSET_SIZE 256 /* ISO-Latin-1 */
#define BMH_PATLEN_MAX 255 /* skip table element is uint8 */
#define BMH_BAD_PATTERN (-2) /* return value if pat is not ISO-Latin-1 */
extern jsint
js_BoyerMooreHorspool(const jschar *text, jsint textlen,
const jschar *pat, jsint patlen,
jsint start);
extern size_t
js_strlen(const jschar *s);
extern jschar *
js_strchr(const jschar *s, jschar c);
extern jschar *
js_strncpy(jschar *t, const jschar *s, size_t n);
/*
* Return s advanced past any Unicode white space characters.
*/
extern const jschar *
js_SkipWhiteSpace(const jschar *s);
/*
* Inflate bytes to JS chars and vice versa. Report out of memory via cx
* and return null on error, otherwise return the jschar or byte vector that
* was JS_malloc'ed.
*/
extern jschar *
js_InflateString(JSContext *cx, const char *bytes, size_t length);
extern char *
js_DeflateString(JSContext *cx, const jschar *chars, size_t length);
/*
* Associate bytes with str in the deflated string cache, returning true on
* successful association, false on out of memory.
*/
extern JSBool
js_SetStringBytes(JSString *str, char *bytes, size_t length);
/*
* Find or create a deflated string cache entry for str that contains its
* characters chopped from Unicode code points into bytes.
*/
extern char *
js_GetStringBytes(JSString *str);
/*
* Returns an escaped version of character string str.
* */
char*
js_escape(JSContext *cx, JSObject *obj, char *str);
JSBool
str_escape(JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval);
JS_END_EXTERN_C
#endif /* jsstr_h___ */

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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/*
* The contents of this file are subject to the Netscape Public
* License Version 1.1 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.mozilla.org/NPL/
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express oqr
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* The Original Code is Mozilla Communicator client code, released
* March 31, 1998.
*
* The Initial Developer of the Original Code is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All
* Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the
* terms of the GNU Public License (the "GPL"), in which case the
* provisions of the GPL are applicable instead of those above.
* If you wish to allow use of your version of this file only
* under the terms of the GPL and not to allow others to use your
* version of this file under the NPL, indicate your decision by
* deleting the provisions above and replace them with the notice
* and other provisions required by the GPL. If you do not delete
* the provisions above, a recipient may use your version of this
* file under either the NPL or the GPL.
*/
/*
** File: jstypes.h
** Description: Definitions of NSPR's basic types
**
** Prototypes and macros used to make up for deficiencies in ANSI environments
** that we have found.
**
** Since we do not wrap <stdlib.h> and all the other standard headers, authors
** of portable code will not know in general that they need these definitions.
** Instead of requiring these authors to find the dependent uses in their code
** and take the following steps only in those C files, we take steps once here
** for all C files.
**/
#ifndef jstypes_h___
#define jstypes_h___
#include <stddef.h>
/***********************************************************************
** MACROS: JS_EXTERN_API
** JS_EXPORT_API
** DESCRIPTION:
** These are only for externally visible routines and globals. For
** internal routines, just use "extern" for type checking and that
** will not export internal cross-file or forward-declared symbols.
** Define a macro for declaring procedures return types. We use this to
** deal with windoze specific type hackery for DLL definitions. Use
** JS_EXTERN_API when the prototype for the method is declared. Use
** JS_EXPORT_API for the implementation of the method.
**
** Example:
** in dowhim.h
** JS_EXTERN_API( void ) DoWhatIMean( void );
** in dowhim.c
** JS_EXPORT_API( void ) DoWhatIMean( void ) { return; }
**
**
***********************************************************************/
#ifdef WIN32
/* These also work for __MWERKS__ */
#define JS_EXTERN_API(__type) extern _declspec(dllexport) __type
#define JS_EXPORT_API(__type) _declspec(dllexport) __type
#define JS_EXTERN_DATA(__type) extern _declspec(dllexport) __type
#define JS_EXPORT_DATA(__type) _declspec(dllexport) __type
#define JS_DLL_CALLBACK
#define JS_STATIC_DLL_CALLBACK(__x) static __x
#elif defined(WIN16)
#ifdef _WINDLL
#define JS_EXTERN_API(__type) extern __type _cdecl _export _loadds
#define JS_EXPORT_API(__type) __type _cdecl _export _loadds
#define JS_EXTERN_DATA(__type) extern __type _export
#define JS_EXPORT_DATA(__type) __type _export
#define JS_DLL_CALLBACK __cdecl __loadds
#define JS_STATIC_DLL_CALLBACK(__x) static __x CALLBACK
#else /* this must be .EXE */
#define JS_EXTERN_API(__type) extern __type _cdecl _export
#define JS_EXPORT_API(__type) __type _cdecl _export
#define JS_EXTERN_DATA(__type) extern __type _export
#define JS_EXPORT_DATA(__type) __type _export
#define JS_DLL_CALLBACK __cdecl __loadds
#define JS_STATIC_DLL_CALLBACK(__x) __x JS_DLL_CALLBACK
#endif /* _WINDLL */
#elif defined(XP_MAC)
#define JS_EXTERN_API(__type) extern __declspec(export) __type
#define JS_EXPORT_API(__type) __declspec(export) __type
#define JS_EXTERN_DATA(__type) extern __declspec(export) __type
#define JS_EXPORT_DATA(__type) __declspec(export) __type
#define JS_DLL_CALLBACK
#define JS_STATIC_DLL_CALLBACK(__x) static __x
#elif defined(XP_OS2)
#define JS_EXTERN_API(__type) extern __type
#define JS_EXPORT_API(__type) __type
#define JS_EXTERN_DATA(__type) extern __type
#define JS_EXPORT_DATA(__type) __type
#define JS_DLL_CALLBACK
#define JS_STATIC_DLL_CALLBACK(__x) __x _Optlink
#else /* Unix */
#define JS_EXTERN_API(__type) extern __type
#define JS_EXPORT_API(__type) __type
#define JS_EXTERN_DATA(__type) extern __type
#define JS_EXPORT_DATA(__type) __type
#define JS_DLL_CALLBACK
#define JS_STATIC_DLL_CALLBACK(__x) static __x
#endif
#ifdef _WIN32
# ifdef __MWERKS__
# define JS_IMPORT_API(__x) __x
# else
# define JS_IMPORT_API(__x) _declspec(dllimport) __x
# endif
#else
# define JS_IMPORT_API(__x) JS_EXPORT_API (__x)
#endif
#if defined(_WIN32) && !defined(__MWERKS__)
# define JS_IMPORT_DATA(__x) _declspec(dllimport) __x
#else
# define JS_IMPORT_DATA(__x) __x
#endif
/*
* The linkage of JS API functions differs depending on whether the file is
* used within the JS library or not. Any source file within the JS
* interpreter should define EXPORT_JS_API whereas any client of the library
* should not.
*/
#ifdef EXPORT_JS_API
#define JS_PUBLIC_API(t) JS_EXPORT_API(t)
#define JS_PUBLIC_DATA(t) JS_EXPORT_DATA(t)
#else
#define JS_PUBLIC_API(t) JS_IMPORT_API(t)
#define JS_PUBLIC_DATA(t) JS_IMPORT_DATA(t)
#endif
#define JS_FRIEND_API(t) JS_PUBLIC_API(t)
#define JS_FRIEND_DATA(t) JS_PUBLIC_DATA(t)
#ifdef _WIN32
# define JS_INLINE __inline
#elif defined(__GNUC__)
# define JS_INLINE
#else
# define JS_INLINE
#endif
/***********************************************************************
** MACROS: JS_BEGIN_MACRO
** JS_END_MACRO
** DESCRIPTION:
** Macro body brackets so that macros with compound statement definitions
** behave syntactically more like functions when called.
***********************************************************************/
#define JS_BEGIN_MACRO do {
#define JS_END_MACRO } while (0)
/***********************************************************************
** MACROS: JS_BEGIN_EXTERN_C
** JS_END_EXTERN_C
** DESCRIPTION:
** Macro shorthands for conditional C++ extern block delimiters.
***********************************************************************/
#ifdef __cplusplus
#define JS_BEGIN_EXTERN_C extern "C" {
#define JS_END_EXTERN_C }
#else
#define JS_BEGIN_EXTERN_C
#define JS_END_EXTERN_C
#endif
/***********************************************************************
** MACROS: JS_BIT
** JS_BITMASK
** DESCRIPTION:
** Bit masking macros. XXX n must be <= 31 to be portable
***********************************************************************/
#define JS_BIT(n) ((JSUint32)1 << (n))
#define JS_BITMASK(n) (JS_BIT(n) - 1)
/***********************************************************************
** MACROS: JS_ROUNDUP
** JS_MIN
** JS_MAX
** DESCRIPTION:
** Commonly used macros for operations on compatible types.
***********************************************************************/
#define JS_ROUNDUP(x,y) ((((x)+((y)-1))/(y))*(y))
#define JS_MIN(x,y) ((x)<(y)?(x):(y))
#define JS_MAX(x,y) ((x)>(y)?(x):(y))
#if (defined(XP_MAC) || defined(XP_PC)) && !defined(CROSS_COMPILE)
# include "jscpucfg.h" /* Use standard Mac or Windows configuration */
#elif defined(XP_UNIX) || defined(XP_BEOS) || defined(CROSS_COMPILE)
# include "jsautocfg.h" /* Use auto-detected configuration */
# include "jsosdep.h" /* ...and platform-specific flags */
#else
# error "Must define one of XP_PC, XP_MAC or XP_UNIX"
#endif
JS_BEGIN_EXTERN_C
/************************************************************************
** TYPES: JSUint8
** JSInt8
** DESCRIPTION:
** The int8 types are known to be 8 bits each. There is no type that
** is equivalent to a plain "char".
************************************************************************/
#if JS_BYTES_PER_BYTE == 1
typedef unsigned char JSUint8;
typedef signed char JSInt8;
#else
#error No suitable type for JSInt8/JSUint8
#endif
/************************************************************************
** TYPES: JSUint16
** JSInt16
** DESCRIPTION:
** The int16 types are known to be 16 bits each.
************************************************************************/
#if JS_BYTES_PER_SHORT == 2
typedef unsigned short JSUint16;
typedef short JSInt16;
#else
#error No suitable type for JSInt16/JSUint16
#endif
/************************************************************************
** TYPES: JSUint32
** JSInt32
** DESCRIPTION:
** The int32 types are known to be 32 bits each.
************************************************************************/
#if JS_BYTES_PER_INT == 4
typedef unsigned int JSUint32;
typedef int JSInt32;
#define JS_INT32(x) x
#define JS_UINT32(x) x ## U
#elif JS_BYTES_PER_LONG == 4
typedef unsigned long JSUint32;
typedef long JSInt32;
#define JS_INT32(x) x ## L
#define JS_UINT32(x) x ## UL
#else
#error No suitable type for JSInt32/JSUint32
#endif
/************************************************************************
** TYPES: JSUint64
** JSInt64
** DESCRIPTION:
** The int64 types are known to be 64 bits each. Care must be used when
** declaring variables of type JSUint64 or JSInt64. Different hardware
** architectures and even different compilers have varying support for
** 64 bit values. The only guaranteed portability requires the use of
** the JSLL_ macros (see jslong.h).
************************************************************************/
#ifdef JS_HAVE_LONG_LONG
#if JS_BYTES_PER_LONG == 8
typedef long JSInt64;
typedef unsigned long JSUint64;
#elif defined(WIN16)
typedef __int64 JSInt64;
typedef unsigned __int64 JSUint64;
#elif defined(WIN32)
typedef __int64 JSInt64;
typedef unsigned __int64 JSUint64;
#else
typedef long long JSInt64;
typedef unsigned long long JSUint64;
#endif /* JS_BYTES_PER_LONG == 8 */
#else /* !JS_HAVE_LONG_LONG */
typedef struct {
#ifdef IS_LITTLE_ENDIAN
JSUint32 lo, hi;
#else
JSUint32 hi, lo;
#endif
} JSInt64;
typedef JSInt64 JSUint64;
#endif /* !JS_HAVE_LONG_LONG */
/************************************************************************
** TYPES: JSUintn
** JSIntn
** DESCRIPTION:
** The JSIntn types are most appropriate for automatic variables. They are
** guaranteed to be at least 16 bits, though various architectures may
** define them to be wider (e.g., 32 or even 64 bits). These types are
** never valid for fields of a structure.
************************************************************************/
#if JS_BYTES_PER_INT >= 2
typedef int JSIntn;
typedef unsigned int JSUintn;
#else
#error 'sizeof(int)' not sufficient for platform use
#endif
/************************************************************************
** TYPES: JSFloat64
** DESCRIPTION:
** NSPR's floating point type is always 64 bits.
************************************************************************/
typedef double JSFloat64;
/************************************************************************
** TYPES: JSSize
** DESCRIPTION:
** A type for representing the size of objects.
************************************************************************/
typedef size_t JSSize;
/************************************************************************
** TYPES: JSPtrDiff
** DESCRIPTION:
** A type for pointer difference. Variables of this type are suitable
** for storing a pointer or pointer sutraction.
************************************************************************/
typedef ptrdiff_t JSPtrdiff;
/************************************************************************
** TYPES: JSUptrdiff
** DESCRIPTION:
** A type for pointer difference. Variables of this type are suitable
** for storing a pointer or pointer sutraction.
************************************************************************/
typedef unsigned long JSUptrdiff;
/************************************************************************
** TYPES: JSBool
** DESCRIPTION:
** Use JSBool for variables and parameter types. Use JS_FALSE and JS_TRUE
** for clarity of target type in assignments and actual arguments. Use
** 'if (bool)', 'while (!bool)', '(bool) ? x : y' etc., to test booleans
** juast as you would C int-valued conditions.
************************************************************************/
typedef JSIntn JSBool;
#define JS_TRUE (JSIntn)1
#define JS_FALSE (JSIntn)0
/************************************************************************
** TYPES: JSPackedBool
** DESCRIPTION:
** Use PRPackedBOol within structs where bitfields are not desireable
** but minimum and consistant overhead matters.
************************************************************************/
typedef JSUint8 JSPackedBool;
/*
** Status code used by some routines that have a single point of failure or
** special status return.
*/
typedef enum { JS_FAILURE = -1, JS_SUCCESS = 0 } JSStatus;
/*
** A JSWord is an integer that is the same size as a void*
*/
typedef long JSWord;
typedef unsigned long JSUword;
#include "jsotypes.h"
JS_END_EXTERN_C
#endif /* jstypes_h___ */

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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
*
* The contents of this file are subject to the Netscape Public
* License Version 1.1 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.mozilla.org/NPL/
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express oqr
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* The Original Code is Mozilla Communicator client code, released
* March 31, 1998.
*
* The Initial Developer of the Original Code is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All
* Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the
* terms of the GNU Public License (the "GPL"), in which case the
* provisions of the GPL are applicable instead of those above.
* If you wish to allow use of your version of this file only
* under the terms of the GPL and not to allow others to use your
* version of this file under the NPL, indicate your decision by
* deleting the provisions above and replace them with the notice
* and other provisions required by the GPL. If you do not delete
* the provisions above, a recipient may use your version of this
* file under either the NPL or the GPL.
*/
/*
* PR assertion checker.
*/
#include <stdio.h>
#include <stdlib.h>
#include "jstypes.h"
#include "jsutil.h"
#ifdef WIN32
# include <windows.h>
#endif
#ifdef XP_MAC
# include <Types.h>
# include <stdarg.h>
# include "jsprf.h"
#endif
#ifdef XP_MAC
/*
* PStrFromCStr converts the source C string to a destination
* pascal string as it copies. The dest string will
* be truncated to fit into an Str255 if necessary.
* If the C String pointer is NULL, the pascal string's length is
* set to zero.
*/
static void PStrFromCStr(const char* src, Str255 dst)
{
short length = 0;
/* handle case of overlapping strings */
if ( (void*)src == (void*)dst )
{
unsigned char* curdst = &dst[1];
unsigned char thisChar;
thisChar = *(const unsigned char*)src++;
while ( thisChar != '\0' )
{
unsigned char nextChar;
/*
* Use nextChar so we don't overwrite what we
* are about to read
*/
nextChar = *(const unsigned char*)src++;
*curdst++ = thisChar;
thisChar = nextChar;
if ( ++length >= 255 )
break;
}
}
else if ( src != NULL )
{
unsigned char* curdst = &dst[1];
/* count down so test it loop is faster */
short overflow = 255;
register char temp;
/*
* Can't do the K&R C thing of while (*s++ = *t++)
* because it will copy trailing zero which might
* overrun pascal buffer. Instead we use a temp variable.
*/
while ( (temp = *src++) != 0 )
{
*(char*)curdst++ = temp;
if ( --overflow <= 0 )
break;
}
length = 255 - overflow;
}
dst[0] = length;
}
static void debugstr(const char *debuggerMsg)
{
Str255 pStr;
PStrFromCStr(debuggerMsg, pStr);
DebugStr(pStr);
}
static void dprintf(const char *format, ...)
{
va_list ap;
char *buffer;
va_start(ap, format);
buffer = (char *)JS_vsmprintf(format, ap);
va_end(ap);
debugstr(buffer);
JS_DELETE(buffer);
}
#endif /* XP_MAC */
JS_PUBLIC_API(void) JS_Assert(const char *s, const char *file, JSIntn ln)
{
#if defined(XP_UNIX) || defined(XP_OS2)
fprintf(stderr, "Assertion failure: %s, at %s:%d\n", s, file, ln);
#endif
#ifdef XP_MAC
dprintf("Assertion failure: %s, at %s:%d\n", s, file, ln);
#endif
#ifdef WIN32
DebugBreak();
#endif
#ifndef XP_MAC
abort();
#endif
}

101
mozilla/js/src/jsutil.h Normal file
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@@ -0,0 +1,101 @@
/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
*
* The contents of this file are subject to the Netscape Public
* License Version 1.1 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.mozilla.org/NPL/
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express oqr
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* The Original Code is Mozilla Communicator client code, released
* March 31, 1998.
*
* The Initial Developer of the Original Code is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All
* Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the
* terms of the GNU Public License (the "GPL"), in which case the
* provisions of the GPL are applicable instead of those above.
* If you wish to allow use of your version of this file only
* under the terms of the GPL and not to allow others to use your
* version of this file under the NPL, indicate your decision by
* deleting the provisions above and replace them with the notice
* and other provisions required by the GPL. If you do not delete
* the provisions above, a recipient may use your version of this
* file under either the NPL or the GPL.
*/
/*
* PR assertion checker.
*/
#ifndef jsutil_h___
#define jsutil_h___
JS_BEGIN_EXTERN_C
/***********************************************************************
** FUNCTION: JS_MALLOC()
** DESCRIPTION:
** JS_NEW() allocates an untyped item of size _size from the heap.
** INPUTS: _size: size in bytes of item to be allocated
** OUTPUTS: untyped pointer to the node allocated
** RETURN: pointer to node or error returned from malloc().
***********************************************************************/
#define JS_MALLOC(_bytes) (malloc((_bytes)))
/***********************************************************************
** FUNCTION: JS_DELETE()
** DESCRIPTION:
** JS_DELETE() unallocates an object previosly allocated via JS_NEW()
** or JS_NEWZAP() to the heap.
** INPUTS: pointer to previously allocated object
** OUTPUTS: the referenced object is returned to the heap
** RETURN: void
***********************************************************************/
#define JS_DELETE(_ptr) { free(_ptr); (_ptr) = NULL; }
/***********************************************************************
** FUNCTION: JS_NEW()
** DESCRIPTION:
** JS_NEW() allocates an item of type _struct from the heap.
** INPUTS: _struct: a data type
** OUTPUTS: pointer to _struct
** RETURN: pointer to _struct or error returns from malloc().
***********************************************************************/
#define JS_NEW(_struct) ((_struct *) JS_MALLOC(sizeof(_struct)))
#ifdef DEBUG
extern JS_PUBLIC_API(void)
JS_Assert(const char *s, const char *file, JSIntn ln);
#define JS_ASSERT(_expr) \
((_expr)?((void)0):JS_Assert(# _expr,__FILE__,__LINE__))
#define JS_NOT_REACHED(_reasonStr) \
JS_Assert(_reasonStr,__FILE__,__LINE__)
#else
#define JS_ASSERT(expr) ((void) 0)
#define JS_NOT_REACHED(reasonStr)
#endif /* defined(DEBUG) */
/*
** Abort the process in a non-graceful manner. This will cause a core file,
** call to the debugger or other moral equivalent as well as causing the
** entire process to stop.
*/
extern JS_PUBLIC_API(void) JS_Abort(void);
JS_END_EXTERN_C
#endif /* jsutil_h___ */

578
mozilla/js/src/jsxdrapi.c Normal file
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@@ -0,0 +1,578 @@
/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
*
* The contents of this file are subject to the Netscape Public
* License Version 1.1 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.mozilla.org/NPL/
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express oqr
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* The Original Code is Mozilla Communicator client code, released
* March 31, 1998.
*
* The Initial Developer of the Original Code is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All
* Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the
* terms of the GNU Public License (the "GPL"), in which case the
* provisions of the GPL are applicable instead of those above.
* If you wish to allow use of your version of this file only
* under the terms of the GPL and not to allow others to use your
* version of this file under the NPL, indicate your decision by
* deleting the provisions above and replace them with the notice
* and other provisions required by the GPL. If you do not delete
* the provisions above, a recipient may use your version of this
* file under either the NPL or the GPL.
*/
#include "jsstddef.h"
#include <string.h>
#include "jstypes.h"
#include "jsutil.h" /* Added by JSIFY */
#include "jsprf.h"
#include "jsapi.h"
#include "jscntxt.h"
#include "jsobj.h" /* js_XDRObject */
#include "jsstr.h"
#include "jsxdrapi.h"
#ifdef DEBUG
#define DBG(x) x
#else
#define DBG(x) ((void)0)
#endif
typedef struct JSXDRMemState {
JSXDRState state;
uint32 count;
uint32 limit;
} JSXDRMemState;
#define MEM_BLOCK 8192
#define MEM_PRIV(xdr) ((JSXDRMemState *)(xdr))
#define MEM_COUNT(xdr) (MEM_PRIV(xdr)->count)
#define MEM_LIMIT(xdr) (MEM_PRIV(xdr)->limit)
#define MEM_LEFT(xdr, bytes) \
JS_BEGIN_MACRO \
if ((xdr)->mode == JSXDR_DECODE && \
MEM_COUNT(xdr) + bytes > MEM_LIMIT(xdr)) { \
JS_ReportErrorNumber((xdr)->cx, js_GetErrorMessage, NULL, \
JSMSG_END_OF_DATA); \
return 0; \
} \
JS_END_MACRO
/* XXXbe why does NEED even allow or cope with non-ENCODE mode? */
#define MEM_NEED(xdr, bytes) \
JS_BEGIN_MACRO \
if ((xdr)->mode == JSXDR_ENCODE) { \
uint32 _new_limit = JS_ROUNDUP(MEM_COUNT(xdr) + bytes, MEM_BLOCK);\
if (MEM_LIMIT(xdr) && \
MEM_COUNT(xdr) + bytes > MEM_LIMIT(xdr)) { \
void *_data = JS_realloc((xdr)->cx, \
(xdr)->data, \
_new_limit); \
if (!_data) \
return 0; \
(xdr)->data = _data; \
MEM_LIMIT(xdr) = _new_limit; \
} \
} else { \
if (MEM_LIMIT(xdr) < MEM_COUNT(xdr) + bytes) { \
JS_ReportErrorNumber((xdr)->cx, js_GetErrorMessage, NULL, \
JSMSG_END_OF_DATA); \
return 0; \
} \
} \
JS_END_MACRO
#define MEM_DATA(xdr) ((void *)((char *)(xdr)->data + MEM_COUNT(xdr)))
#define MEM_INCR(xdr,bytes) (MEM_COUNT(xdr) += (bytes))
static JSBool
mem_get32(JSXDRState *xdr, uint32 *lp)
{
MEM_LEFT(xdr, 4);
*lp = *(uint32 *)MEM_DATA(xdr);
MEM_INCR(xdr, 4);
return JS_TRUE;
}
static JSBool
mem_set32(JSXDRState *xdr, uint32 *lp)
{
MEM_NEED(xdr, 4);
*(uint32 *)MEM_DATA(xdr) = *lp;
MEM_INCR(xdr, 4);
return JS_TRUE;
}
static JSBool
mem_getbytes(JSXDRState *xdr, char **bytesp, uint32 len)
{
MEM_LEFT(xdr, len);
memcpy(*bytesp, MEM_DATA(xdr), len);
MEM_INCR(xdr, len);
return JS_TRUE;
}
static JSBool
mem_setbytes(JSXDRState *xdr, char **bytesp, uint32 len)
{
MEM_NEED(xdr, len);
memcpy(MEM_DATA(xdr), *bytesp, len);
MEM_INCR(xdr, len);
return JS_TRUE;
}
static void *
mem_raw(JSXDRState *xdr, uint32 len)
{
void *data;
if (xdr->mode == JSXDR_ENCODE) {
MEM_NEED(xdr, len);
} else if (xdr->mode == JSXDR_DECODE) {
MEM_LEFT(xdr, len);
}
data = MEM_DATA(xdr);
MEM_INCR(xdr, len);
return data;
}
static JSBool
mem_seek(JSXDRState *xdr, int32 offset, JSXDRWhence whence)
{
switch (whence) {
case JSXDR_SEEK_CUR:
if ((int32)MEM_COUNT(xdr) + offset < 0) {
JS_ReportErrorNumber(xdr->cx, js_GetErrorMessage, NULL,
JSMSG_SEEK_BEYOND_START);
return JS_FALSE;
}
if (offset > 0)
MEM_NEED(xdr, offset);
MEM_COUNT(xdr) += offset;
return JS_TRUE;
case JSXDR_SEEK_SET:
if (offset < 0) {
JS_ReportErrorNumber(xdr->cx, js_GetErrorMessage, NULL,
JSMSG_SEEK_BEYOND_START);
return JS_FALSE;
}
if (xdr->mode == JSXDR_ENCODE) {
if ((uint32)offset > MEM_COUNT(xdr))
MEM_NEED(xdr, offset - MEM_COUNT(xdr));
MEM_COUNT(xdr) = offset;
} else {
if ((uint32)offset > MEM_LIMIT(xdr)) {
JS_ReportErrorNumber(xdr->cx, js_GetErrorMessage, NULL,
JSMSG_SEEK_BEYOND_END);
return JS_FALSE;
}
MEM_COUNT(xdr) = offset;
}
return JS_TRUE;
case JSXDR_SEEK_END:
if (offset >= 0 ||
xdr->mode == JSXDR_ENCODE ||
(int32)MEM_LIMIT(xdr) + offset < 0) {
JS_ReportErrorNumber(xdr->cx, js_GetErrorMessage, NULL,
JSMSG_END_SEEK);
return JS_FALSE;
}
MEM_COUNT(xdr) = MEM_LIMIT(xdr) + offset;
return JS_TRUE;
default: {
char numBuf[12];
JS_snprintf(numBuf, sizeof numBuf, "%d", whence);
JS_ReportErrorNumber(xdr->cx, js_GetErrorMessage, NULL,
JSMSG_WHITHER_WHENCE, numBuf);
return JS_FALSE;
}
}
}
static uint32
mem_tell(JSXDRState *xdr)
{
return MEM_COUNT(xdr);
}
static void
mem_finalize(JSXDRState *xdr)
{
JSContext *cx = xdr->cx;
JS_free(cx, xdr->data);
}
static JSXDROps xdrmem_ops = {
mem_get32, mem_set32, mem_getbytes, mem_setbytes,
mem_raw, mem_seek, mem_tell, mem_finalize
};
JS_PUBLIC_API(void)
JS_XDRNewBase(JSContext *cx, JSXDRState *xdr, JSXDRMode mode)
{
xdr->cx = cx;
xdr->mode = mode;
xdr->registry = NULL;
xdr->nclasses = 0;
}
JS_PUBLIC_API(JSXDRState *)
JS_XDRNewMem(JSContext *cx, JSXDRMode mode)
{
JSXDRState *xdr = JS_malloc(cx, sizeof(JSXDRMemState));
if (!xdr)
return NULL;
JS_XDRNewBase(cx, xdr, mode);
if (mode == JSXDR_ENCODE) {
if (!(xdr->data = JS_malloc(cx, MEM_BLOCK))) {
JS_free(cx, xdr);
return NULL;
}
} else {
/* XXXbe ok, so better not deref xdr->data if not ENCODE */
xdr->data = NULL;
}
xdr->ops = &xdrmem_ops;
MEM_PRIV(xdr)->count = 0;
MEM_PRIV(xdr)->limit = MEM_BLOCK;
return xdr;
}
JS_PUBLIC_API(void *)
JS_XDRMemGetData(JSXDRState *xdr, uint32 *lp)
{
if (xdr->ops != &xdrmem_ops)
return NULL;
*lp = MEM_PRIV(xdr)->count;
return xdr->data;
}
JS_PUBLIC_API(void)
JS_XDRMemSetData(JSXDRState *xdr, void *data, uint32 len)
{
if (xdr->ops != &xdrmem_ops)
return;
MEM_PRIV(xdr)->limit = len;
xdr->data = data;
MEM_PRIV(xdr)->count = 0;
}
JS_PUBLIC_API(JSBool)
JS_XDRUint8(JSXDRState *xdr, uint8 *b)
{
uint32 l = *b;
if (!JS_XDRUint32(xdr, &l))
return JS_FALSE;
*b = (uint8) l & 0xff;
return JS_TRUE;
}
JS_PUBLIC_API(JSBool)
JS_XDRUint16(JSXDRState *xdr, uint16 *s)
{
uint32 l = *s;
if (!JS_XDRUint32(xdr, &l))
return JS_FALSE;
*s = (uint16) l & 0xffff;
return JS_TRUE;
}
JS_PUBLIC_API(JSBool)
JS_XDRUint32(JSXDRState *xdr, uint32 *lp)
{
JSBool ok = JS_FALSE;
if (xdr->mode == JSXDR_ENCODE) {
uint32 xl = JSXDR_SWAB32(*lp);
ok = xdr->ops->set32(xdr, &xl);
} else if (xdr->mode == JSXDR_DECODE) {
ok = xdr->ops->get32(xdr, lp);
*lp = JSXDR_SWAB32(*lp);
}
return ok;
}
JS_PUBLIC_API(JSBool)
JS_XDRBytes(JSXDRState *xdr, char **bytesp, uint32 len)
{
if (xdr->mode == JSXDR_ENCODE) {
if (!xdr->ops->setbytes(xdr, bytesp, len))
return JS_FALSE;
} else {
if (!xdr->ops->getbytes(xdr, bytesp, len))
return JS_FALSE;
}
len = xdr->ops->tell(xdr);
if (len % JSXDR_ALIGN) {
if (!xdr->ops->seek(xdr, JSXDR_ALIGN - (len % JSXDR_ALIGN),
JSXDR_SEEK_CUR)) {
return JS_FALSE;
}
}
return JS_TRUE;
}
/**
* Convert between a C string and the XDR representation:
* leading 32-bit count, then counted vector of chars,
* then possibly \0 padding to multiple of 4.
*/
JS_PUBLIC_API(JSBool)
JS_XDRCString(JSXDRState *xdr, char **sp)
{
uint32 len;
if (xdr->mode == JSXDR_ENCODE)
len = strlen(*sp);
JS_XDRUint32(xdr, &len);
if (xdr->mode == JSXDR_DECODE) {
if (!(*sp = JS_malloc(xdr->cx, len + 1)))
return JS_FALSE;
}
if (!JS_XDRBytes(xdr, sp, len)) {
if (xdr->mode == JSXDR_DECODE)
JS_free(xdr->cx, *sp);
return JS_FALSE;
}
if (xdr->mode == JSXDR_DECODE) {
(*sp)[len] = '\0';
} else if (xdr->mode == JSXDR_FREE) {
JS_free(xdr->cx, *sp);
*sp = NULL;
}
return JS_TRUE;
}
JS_PUBLIC_API(JSBool)
JS_XDRCStringOrNull(JSXDRState *xdr, char **sp)
{
uint32 null = (*sp == NULL);
if (!JS_XDRUint32(xdr, &null))
return JS_FALSE;
if (null) {
*sp = NULL;
return JS_TRUE;
}
return JS_XDRCString(xdr, sp);
}
/*
* Convert between a JS (Unicode) string and the XDR representation.
*/
JS_PUBLIC_API(JSBool)
JS_XDRString(JSXDRState *xdr, JSString **strp)
{
uint32 i, len, nbytes;
jschar *chars = NULL, *raw;
if (xdr->mode == JSXDR_ENCODE)
len = (*strp)->length;
if (!JS_XDRUint32(xdr, &len))
return JS_FALSE;
nbytes = len * sizeof(jschar);
if (xdr->mode == JSXDR_ENCODE) {
chars = (*strp)->chars;
} else if (xdr->mode == JSXDR_DECODE) {
if (!(chars = JS_malloc(xdr->cx, nbytes + sizeof(jschar))))
return JS_FALSE;
}
if (nbytes % JSXDR_ALIGN)
nbytes += JSXDR_ALIGN - (nbytes % JSXDR_ALIGN);
if (!(raw = xdr->ops->raw(xdr, nbytes)))
goto bad;
if (xdr->mode == JSXDR_ENCODE) {
for (i = 0; i < len; i++)
raw[i] = JSXDR_SWAB16(chars[i]);
} else if (xdr->mode == JSXDR_DECODE) {
for (i = 0; i < len; i++)
chars[i] = JSXDR_SWAB16(raw[i]);
chars[len] = 0;
if (!(*strp = JS_NewUCString(xdr->cx, chars, len)))
goto bad;
}
return JS_TRUE;
bad:
if (xdr->mode == JSXDR_DECODE)
JS_free(xdr->cx, chars);
return JS_FALSE;
}
JS_PUBLIC_API(JSBool)
JS_XDRStringOrNull(JSXDRState *xdr, JSString **strp)
{
uint32 null = (*strp == NULL);
if (!JS_XDRUint32(xdr, &null))
return JS_FALSE;
if (null) {
*strp = NULL;
return JS_TRUE;
}
return JS_XDRString(xdr, strp);
}
JS_PUBLIC_API(JSBool)
JS_XDRDouble(JSXDRState *xdr, jsdouble **dp)
{
jsdouble d;
if (xdr->mode == JSXDR_ENCODE)
d = **dp;
#if IS_BIG_ENDIAN
if (!JS_XDRUint32(xdr, (uint32 *)&d + 1) ||
!JS_XDRUint32(xdr, (uint32 *)&d))
#else /* !IS_BIG_ENDIAN */
if (!JS_XDRUint32(xdr, (uint32 *)&d) ||
!JS_XDRUint32(xdr, (uint32 *)&d + 1))
#endif /* IS_BIG_ENDIAN */
return JS_FALSE;
if (xdr->mode == JSXDR_DECODE) {
*dp = JS_NewDouble(xdr->cx, d);
if (!*dp)
return JS_FALSE;
}
return JS_TRUE;
}
JS_PUBLIC_API(JSBool)
JS_XDRValue(JSXDRState *xdr, jsval *vp)
{
uint32 type = JSVAL_TAG(*vp);
if (!JS_XDRUint32(xdr, &type))
return JS_FALSE;
switch (type) {
case JSVAL_STRING: {
JSString *str = JSVAL_TO_STRING(*vp);
if (!JS_XDRString(xdr, &str))
return JS_FALSE;
if (xdr->mode == JSXDR_DECODE)
*vp = STRING_TO_JSVAL(str);
break;
}
case JSVAL_DOUBLE: {
jsdouble *dp;
if (xdr->mode == JSXDR_ENCODE)
dp = JSVAL_TO_DOUBLE(*vp);
if (!JS_XDRDouble(xdr, &dp))
return JS_FALSE;
if (xdr->mode == JSXDR_DECODE)
*vp = DOUBLE_TO_JSVAL(dp);
break;
}
case JSVAL_OBJECT: {
JSObject *obj;
if (xdr->mode == JSXDR_ENCODE)
obj = JSVAL_TO_OBJECT(*vp);
if (!js_XDRObject(xdr, &obj))
return JS_FALSE;
if (xdr->mode == JSXDR_DECODE)
*vp = OBJECT_TO_JSVAL(obj);
break;
}
case JSVAL_BOOLEAN: {
uint32 b;
if (xdr->mode == JSXDR_ENCODE)
b = (uint32)JSVAL_TO_BOOLEAN(*vp);
if (!JS_XDRUint32(xdr, &b))
return JS_FALSE;
if (xdr->mode == JSXDR_DECODE)
*vp = BOOLEAN_TO_JSVAL((JSBool)b);
break;
}
case JSVAL_VOID:
if (!JS_XDRUint32(xdr, (uint32 *)vp))
return JS_FALSE;
break;
default: {
char numBuf[12];
if (type & JSVAL_INT) {
uint32 i;
if (xdr->mode == JSXDR_ENCODE)
i = JSVAL_TO_INT(*vp);
if (!JS_XDRUint32(xdr, &i))
return JS_FALSE;
if (xdr->mode == JSXDR_DECODE)
*vp = INT_TO_JSVAL(i);
break;
}
JS_snprintf(numBuf, sizeof numBuf, "%#lx", type);
JS_ReportErrorNumber(xdr->cx, js_GetErrorMessage, NULL,
JSMSG_BAD_JVAL_TYPE, type);
return JS_FALSE;
}
}
return JS_TRUE;
}
JS_PUBLIC_API(void)
JS_XDRDestroy(JSXDRState *xdr)
{
JSContext *cx = xdr->cx;
xdr->ops->finalize(xdr);
if (xdr->registry)
JS_free(cx, xdr->registry);
JS_free(cx, xdr);
}
#define REGISTRY_CHUNK 4
JS_PUBLIC_API(JSBool)
JS_RegisterClass(JSXDRState *xdr, JSClass *clasp, uint32 *idp)
{
uintN nclasses;
JSClass **registry;
nclasses = xdr->nclasses;
if (nclasses == 0) {
registry = JS_malloc(xdr->cx, REGISTRY_CHUNK * sizeof(JSClass *));
} else if (nclasses % REGISTRY_CHUNK == 0) {
registry = JS_realloc(xdr->cx,
xdr->registry,
(nclasses + REGISTRY_CHUNK) * sizeof(JSClass *));
} else {
registry = xdr->registry;
}
if (!registry)
return JS_FALSE;
registry[nclasses++] = clasp;
xdr->registry = registry;
xdr->nclasses = nclasses;
*idp = nclasses;
return JS_TRUE;
}
JS_PUBLIC_API(uint32)
JS_FindClassIdByName(JSXDRState *xdr, const char *name)
{
uintN i;
for (i = 0; i < xdr->nclasses; i++) {
if (!strcmp(name, xdr->registry[i]->name))
return i+1;
}
return 0;
}
JS_PUBLIC_API(JSClass *)
JS_FindClassById(JSXDRState *xdr, uint32 id)
{
if (id > xdr->nclasses)
return NULL;
return xdr->registry[id-1];
}

174
mozilla/js/src/jsxdrapi.h Normal file
View File

@@ -0,0 +1,174 @@
/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
*
* The contents of this file are subject to the Netscape Public
* License Version 1.1 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.mozilla.org/NPL/
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express oqr
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* The Original Code is Mozilla Communicator client code, released
* March 31, 1998.
*
* The Initial Developer of the Original Code is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All
* Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the
* terms of the GNU Public License (the "GPL"), in which case the
* provisions of the GPL are applicable instead of those above.
* If you wish to allow use of your version of this file only
* under the terms of the GPL and not to allow others to use your
* version of this file under the NPL, indicate your decision by
* deleting the provisions above and replace them with the notice
* and other provisions required by the GPL. If you do not delete
* the provisions above, a recipient may use your version of this
* file under either the NPL or the GPL.
*/
#ifndef jsxdrapi_h___
#define jsxdrapi_h___
/*
* JS external data representation interface API.
*
* The XDR system is comprised of three major parts:
*
* - the state serialization/deserialization APIs, which allow consumers
* of the API to serialize JS runtime state (script bytecodes, atom maps,
* object graphs, etc.) for later restoration. These portions
* are implemented in various appropriate files, such as jsscript.c
* for the script portions and jsobj.c for object state.
* - the callback APIs through which the runtime requests an opaque
* representation of a native object, and through which the runtime
* constructs a live native object from an opaque representation. These
* portions are the responsibility of the native object implementor.
* - utility functions for en/decoding of primitive types, such as
* JSStrings. This portion is implemented in jsxdrapi.c.
*
* Spiritually guided by Sun's XDR, where appropriate.
*/
#include "jspubtd.h"
#include "jsprvtd.h"
JS_BEGIN_EXTERN_C
/* We use little-endian byteorder for all encoded data */
#if defined IS_LITTLE_ENDIAN
#define JSXDR_SWAB32(x) x
#define JSXDR_SWAB16(x) x
#elif defined IS_BIG_ENDIAN
#define JSXDR_SWAB32(x) (((x) >> 24) | \
(((x) >> 8) & 0xff00) | \
(((x) << 8) & 0xff0000) | \
((x) << 24))
#define JSXDR_SWAB16(x) (((x) >> 8) | ((x) << 8))
#else
#error "unknown byte order"
#endif
#define JSXDR_ALIGN 4
typedef enum JSXDRMode {
JSXDR_ENCODE,
JSXDR_DECODE,
JSXDR_FREE
} JSXDRMode;
typedef enum JSXDRWhence {
JSXDR_SEEK_SET,
JSXDR_SEEK_CUR,
JSXDR_SEEK_END
} JSXDRWhence;
typedef struct JSXDROps {
JSBool (*get32)(JSXDRState *, uint32 *);
JSBool (*set32)(JSXDRState *, uint32 *);
JSBool (*getbytes)(JSXDRState *, char **, uint32);
JSBool (*setbytes)(JSXDRState *, char **, uint32);
void * (*raw)(JSXDRState *, uint32);
JSBool (*seek)(JSXDRState *, int32, JSXDRWhence);
uint32 (*tell)(JSXDRState *);
void (*finalize)(JSXDRState *);
} JSXDROps;
struct JSXDRState {
JSXDRMode mode;
JSXDROps *ops;
JSContext *cx;
JSClass **registry;
uintN nclasses;
void *data;
};
extern JS_PUBLIC_API(void)
JS_XDRNewBase(JSContext *cx, JSXDRState *xdr, JSXDRMode mode);
extern JS_PUBLIC_API(JSXDRState *)
JS_XDRNewMem(JSContext *cx, JSXDRMode mode);
extern JS_PUBLIC_API(void *)
JS_XDRMemGetData(JSXDRState *xdr, uint32 *lp);
extern JS_PUBLIC_API(void)
JS_XDRMemSetData(JSXDRState *xdr, void *data, uint32 len);
extern JS_PUBLIC_API(void)
JS_XDRDestroy(JSXDRState *xdr);
extern JS_PUBLIC_API(JSBool)
JS_XDRUint8(JSXDRState *xdr, uint8 *b);
extern JS_PUBLIC_API(JSBool)
JS_XDRUint16(JSXDRState *xdr, uint16 *s);
extern JS_PUBLIC_API(JSBool)
JS_XDRUint32(JSXDRState *xdr, uint32 *lp);
extern JS_PUBLIC_API(JSBool)
JS_XDRBytes(JSXDRState *xdr, char **bytes, uint32 len);
extern JS_PUBLIC_API(JSBool)
JS_XDRCString(JSXDRState *xdr, char **sp);
extern JS_PUBLIC_API(JSBool)
JS_XDRCStringOrNull(JSXDRState *xdr, char **sp);
extern JS_PUBLIC_API(JSBool)
JS_XDRString(JSXDRState *xdr, JSString **strp);
extern JS_PUBLIC_API(JSBool)
JS_XDRStringOrNull(JSXDRState *xdr, JSString **strp);
extern JS_PUBLIC_API(JSBool)
JS_XDRDouble(JSXDRState *xdr, jsdouble **dp);
extern JS_PUBLIC_API(JSBool)
JS_XDRValue(JSXDRState *xdr, jsval *vp);
extern JS_PUBLIC_API(JSBool)
JS_RegisterClass(JSXDRState *xdr, JSClass *clasp, uint32 *lp);
extern JS_PUBLIC_API(uint32)
JS_FindClassIdByName(JSXDRState *xdr, const char *name);
extern JS_PUBLIC_API(JSClass *)
JS_FindClassById(JSXDRState *xdr, uint32 id);
/* Magic values */
#define JSXDR_MAGIC_SCRIPT_1 0xdead0001
#define JSXDR_MAGIC_SCRIPT_2 0xdead0002
#define JSXDR_MAGIC_SCRIPT_CURRENT JSXDR_MAGIC_SCRIPT_2
JS_END_EXTERN_C
#endif /* ! jsxdrapi_h___ */

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@@ -0,0 +1,81 @@
!
! atomic compare-and-swap routines for V8 sparc
! and for V8+ (ultrasparc)
!
!
! standard asm linkage macros; this module must be compiled
! with the -P option (use C preprocessor)
#include <sys/asm_linkage.h>
! ======================================================================
!
! Perform the sequence *a = b atomically with respect to previous value
! of a (a0). If *a==a0 then assign *a to b, all in one atomic operation.
! Returns 1 if assignment happened, and 0 otherwise.
!
! usage : old_val = compare_and_swap(address, oldval, newval)
!
! -----------------------
! Note on REGISTER USAGE:
! as this is a LEAF procedure, a new stack frame is not created;
! we use the caller stack frame so what would normally be %i (input)
! registers are actually %o (output registers). Also, we must not
! overwrite the contents of %l (local) registers as they are not
! assumed to be volatile during calls.
!
! So, the registers used are:
! %o0 [input] - the address of the value to increment
! %o1 [input] - the old value to compare with
! %o2 [input] - the new value to set for [%o0]
! %o3 [local] - work register
! -----------------------
#ifndef ULTRA_SPARC
! v8
ENTRY(compare_and_swap) ! standard assembler/ELF prologue
stbar
mov -1,%o3 ! busy flag
swap [%o0],%o3 ! get current value
l1: cmp %o3,-1 ! busy?
be,a l1 ! if so, spin
swap [%o0],%o3 ! using branch-delay to swap back value
cmp %o1,%o3 ! compare old with current
be,a l2 ! if equal then swap in new value
swap [%o0],%o2 ! done.
swap [%o0],%o3 ! otherwise, swap back current value
retl
mov 0,%o0 ! return false
l2: retl
mov 1,%o0 ! return true
SET_SIZE(compare_and_swap) ! standard assembler/ELF epilogue
!
! end
!
#else /* ULTRA_SPARC */
! ======================================================================
!
! v9
ENTRY(compare_and_swap) ! standard assembler/ELF prologue
stbar
cas [%o0],%o1,%o2 ! compare *w with old value and set to new if equal
cmp %o1,%o2 ! did we succeed?
be,a m1 ! yes
mov 1,%o0 ! return true (annulled when no jump)
mov 0,%o0 ! return false
m1: retl
nop
SET_SIZE(compare_and_swap) ! standard assembler/ELF epilogue
!
! end
!
! ======================================================================
!
#endif

213
mozilla/js/src/makefile.win Normal file
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@@ -0,0 +1,213 @@
#// The contents of this file are subject to the Netscape Public
#// License Version 1.1 (the "License"); you may not use this file
#// except in compliance with the License. You may obtain a copy of
#// the License at http://www.mozilla.org/NPL/
#//
#// Software distributed under the License is distributed on an "AS
#// IS" basis, WITHOUT WARRANTY OF ANY KIND, either express oqr
#// implied. See the License for the specific language governing
#// rights and limitations under the License.
#//
#// The Original Code is Mozilla Communicator client code, released
#// March 31, 1998.
#//
#// The Initial Developer of the Original Code is Netscape
#// Communications Corporation. Portions created by Netscape are
#// Copyright (C) 1998 Netscape Communications Corporation. All
#// Rights Reserved.
#//
#// Contributor(s):
#//
#// Alternatively, the contents of this file may be used under the
#// terms of the GNU Public License (the "GPL"), in which case the
#// provisions of the GPL are applicable instead of those above.
#// If you wish to allow use of your version of this file only
#// under the terms of the GPL and not to allow others to use your
#// version of this file under the NPL, indicate your decision by
#// deleting the provisions above and replace them with the notice
#// and other provisions required by the GPL. If you do not delete
#// the provisions above, a recipient may use your version of this
#// file under either the NPL or the GPL.
#//------------------------------------------------------------------------
#//
#// Specify the depth of the current directory relative to the
#// root of NS
#//
#//------------------------------------------------------------------------
DEPTH=..\..
include <$(DEPTH)\config\config.mak>
!ifdef MOZ_OJI
DIRS = liveconnect
!endif
DIRS = $(DIRS) fdlibm xpconnect
#//------------------------------------------------------------------------
#//
#// Define any Public Make Variables here: (ie. PDFFILE, MAPFILE, ...)
#//
#//------------------------------------------------------------------------
DLLNAME = js$(MOZ_BITS)$(VERSION_NUMBER)
DLL1NAME = js1$(MOZ_BITS)$(VERSION_NUMBER)
PDBFILE = $(DLLNAME).pdb
MAPFILE = $(DLLNAME).map
RESFILE = js$(MOZ_BITS)40.res
DLL =.\$(OBJDIR)\$(DLLNAME).dll
MAKE_OBJ_TYPE = DLL
!if "$(MOZ_BITS)" != "16"
LINCS = -I$(PUBLIC)\layout \
-I$(DEPTH)\include \
-I$(PUBLIC)\liblayer
!endif
!if "$(MOZ_BITS)" == "16"
!ifdef NSPR20
DEFFILE = $(DLL1NAME).def
!else
DEFFILE = $(DLLNAME).def
!endif
!endif
FDLIBM_LIBRARY = fdlibm\$(OBJDIR)\fdlibm.lib
LLIBS=$(LIBNSPR) $(FDLIBM_LIBRARY)
LCFLAGS= $(LCFLAGS) -DEXPORT_JS_API
!if "$(MOZ_BITS)"=="32" && defined(MOZ_DEBUG) && defined(GLOWCODE)
LLIBS=$(LLIBS) $(GLOWDIR)\glowcode.lib
!endif
#//------------------------------------------------------------------------
#//
#// Define the files necessary to build the target (ie. OBJS)
#//
#//------------------------------------------------------------------------
OBJS = \
.\$(OBJDIR)\jsapi.obj \
.\$(OBJDIR)\jsarena.obj \
.\$(OBJDIR)\jsarray.obj \
.\$(OBJDIR)\jsatom.obj \
.\$(OBJDIR)\jsbool.obj \
.\$(OBJDIR)\jscntxt.obj \
.\$(OBJDIR)\jsdate.obj \
.\$(OBJDIR)\jsdbgapi.obj \
.\$(OBJDIR)\jsdtoa.obj \
.\$(OBJDIR)\jsemit.obj \
.\$(OBJDIR)\jsexn.obj \
.\$(OBJDIR)\jsfun.obj \
.\$(OBJDIR)\jsgc.obj \
.\$(OBJDIR)\jshash.obj \
.\$(OBJDIR)\jsinterp.obj \
.\$(OBJDIR)\jslock.obj \
.\$(OBJDIR)\jslog2.obj \
.\$(OBJDIR)\jslong.obj \
.\$(OBJDIR)\jsmath.obj \
.\$(OBJDIR)\jsnum.obj \
.\$(OBJDIR)\jsobj.obj \
.\$(OBJDIR)\jsopcode.obj \
.\$(OBJDIR)\jsparse.obj \
.\$(OBJDIR)\jsprf.obj \
.\$(OBJDIR)\jsregexp.obj \
.\$(OBJDIR)\jsscan.obj \
.\$(OBJDIR)\jsscope.obj \
.\$(OBJDIR)\jsscript.obj \
.\$(OBJDIR)\jsstr.obj \
.\$(OBJDIR)\jsutil.obj \
.\$(OBJDIR)\jsxdrapi.obj \
.\$(OBJDIR)\prmjtime.obj \
$(NULL)
#//------------------------------------------------------------------------
#//
#// install headers
#//
#//------------------------------------------------------------------------
INSTALL_DIR=$(XPDIST)\include
INSTALL_FILE_LIST= \
js.msg \
jsapi.h \
jsarray.h \
jsarena.h \
jsatom.h \
jsbit.h \
jsbool.h \
jsclist.h \
jscntxt.h \
jscompat.h \
jsconfig.h \
jscpucfg.h \
jsdate.h \
jsdbgapi.h \
jsemit.h \
jsfun.h \
jsgc.h \
jshash.h \
jsinterp.h \
jslock.h \
jslong.h \
jsmath.h \
jsnum.h \
jsobj.h \
jsopcode.tbl \
jsopcode.h \
jsosdep.h \
jsotypes.h \
jsparse.h \
jsprf.h \
jsprvtd.h \
jspubtd.h \
jsregexp.h \
jsscan.h \
jsscope.h \
jsscript.h \
jsstr.h \
jstypes.h \
jsutil.h \
jsxdrapi.h \
jsstddef.h \
$(NULL)
#//------------------------------------------------------------------------
#//
#// Include the common makefile rules
#//
#//------------------------------------------------------------------------
include <$(DEPTH)\config\rules.mak>
.\$(OBJDIR)\jsmath.obj: $(FDLIBM_LIBRARY)
#// Ripped from mozilla/config/rule.mak $(DIRS):: rule
$(FDLIBM_LIBRARY):
!if "$(WINOS)" == "WIN95"
!if defined(VERBOSE)
@echo +++ make: cannot recursively make on win95 using command.com, use w95make.
!endif
!else
@echo +++ make: %MAKE_ARGS% in $(MAKEDIR)\$@
@cd fdlibm
@$(NMAKE) -f makefile.win %%MAKE_ARGS%%
@cd $(MAKEDIR)
!endif
export:: $(DLL) INSTALL_FILES
$(MAKE_INSTALL) .\$(OBJDIR)\$(DLLNAME).dll $(DIST)\bin
$(MAKE_INSTALL) .\$(OBJDIR)\$(DLLNAME).lib $(DIST)\lib
#//------------------------------------------------------------------------
#//
#// Standalone js.exe interpreter
#//
#//------------------------------------------------------------------------
#//PROGRAM = $(OBJDIR)\js.exe
#//js: $(PROGRAM)
#//
#//$(PROGRAM): $(OBJDIR)\js.obj $(LIBRARY)
#// @$(MAKE_OBJDIR)
#// $(link) /debug /out:$(PROGRAM) $(OBJDIR)\js.obj $(DIST)\lib\pr3240.lib $(LIBRARY) $(LDFLAGS)
#//
#//$(OBJDIR)\js.obj: js.c
#// $(CC) /Fo$(OBJDIR)\js.obj js.c $(CFLAGS)

39
mozilla/js/src/perfect.js Normal file
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@@ -0,0 +1,39 @@
// Some simple testing of new, eval and some string stuff.
// constructor -- expression array initialization
function ExprArray(n,v)
{
// Initializes n values to v coerced to a string.
for (var i = 0; i < n; i++) {
this[i] = "" + v;
}
}
// Print the perfect numbers up to n and the sum expression for n's divisors.
function perfect(n)
{
print("The perfect numbers up to " + n + " are:");
// We build sumOfDivisors[i] to hold a string expression for
// the sum of the divisors of i, excluding i itself.
var sumOfDivisors = new ExprArray(n+1,1);
for (var divisor = 2; divisor <= n; divisor++) {
for (var j = divisor + divisor; j <= n; j += divisor) {
sumOfDivisors[j] += " + " + divisor;
}
// At this point everything up to 'divisor' has its sumOfDivisors
// expression calculated, so we can determine whether it's perfect
// already by evaluating.
if (eval(sumOfDivisors[divisor]) == divisor) {
print("" + divisor + " = " + sumOfDivisors[divisor]);
}
}
print("That's all.");
}
print("\nA number is 'perfect' if it is equal to the sum of its")
print("divisors (excluding itself).\n");
perfect(500);

597
mozilla/js/src/prmjtime.c Normal file
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@@ -0,0 +1,597 @@
/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
*
* The contents of this file are subject to the Netscape Public
* License Version 1.1 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.mozilla.org/NPL/
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express oqr
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* The Original Code is Mozilla Communicator client code, released
* March 31, 1998.
*
* The Initial Developer of the Original Code is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All
* Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the
* terms of the GNU Public License (the "GPL"), in which case the
* provisions of the GPL are applicable instead of those above.
* If you wish to allow use of your version of this file only
* under the terms of the GPL and not to allow others to use your
* version of this file under the NPL, indicate your decision by
* deleting the provisions above and replace them with the notice
* and other provisions required by the GPL. If you do not delete
* the provisions above, a recipient may use your version of this
* file under either the NPL or the GPL.
*/
/*
* PR time code.
*/
#ifdef MOZILLA_CLIENT
#include "platform.h"
#endif
#ifdef SOLARIS
#define _REENTRANT 1
#endif
#include <string.h>
#include <time.h>
#include "jstypes.h"
#include "jsprf.h"
#include "prmjtime.h"
#define PRMJ_DO_MILLISECONDS 1
#ifdef XP_PC
#ifndef __MWERKS__
#include <sys/timeb.h>
#else
#include <WINDEF.H>
#include <WINBASE.H>
#endif
#endif
#ifdef XP_MAC
#include <OSUtils.h>
#include <TextUtils.h>
#include <Resources.h>
#include <Timer.h>
#endif
#if defined(XP_UNIX) || defined(XP_BEOS)
#ifdef _SVID_GETTOD /* Defined only on Solaris, see Solaris <sys/types.h> */
extern int gettimeofday(struct timeval *tv);
#endif
#include <sys/time.h>
#endif /* XP_UNIX */
#ifdef XP_MAC
static uint64 dstLocalBaseMicroseconds;
static unsigned long gJanuaryFirst1970Seconds;
static void MacintoshInitializeTime(void)
{
uint64 upTime;
unsigned long currentLocalTimeSeconds,
startupTimeSeconds;
uint64 startupTimeMicroSeconds;
uint32 upTimeSeconds;
uint64 oneMillion, upTimeSecondsLong, microSecondsToSeconds;
DateTimeRec firstSecondOfUnixTime;
// Figure out in local time what time the machine
// started up. This information can be added to
// upTime to figure out the current local time
// as well as GMT.
Microseconds((UnsignedWide*)&upTime);
GetDateTime(&currentLocalTimeSeconds);
JSLL_I2L(microSecondsToSeconds, PRMJ_USEC_PER_SEC);
JSLL_DIV(upTimeSecondsLong, upTime, microSecondsToSeconds);
JSLL_L2I(upTimeSeconds, upTimeSecondsLong);
startupTimeSeconds = currentLocalTimeSeconds - upTimeSeconds;
// Make sure that we normalize the macintosh base seconds
// to the unix base of January 1, 1970.
firstSecondOfUnixTime.year = 1970;
firstSecondOfUnixTime.month = 1;
firstSecondOfUnixTime.day = 1;
firstSecondOfUnixTime.hour = 0;
firstSecondOfUnixTime.minute = 0;
firstSecondOfUnixTime.second = 0;
firstSecondOfUnixTime.dayOfWeek = 0;
DateToSeconds(&firstSecondOfUnixTime, &gJanuaryFirst1970Seconds);
startupTimeSeconds -= gJanuaryFirst1970Seconds;
// Now convert the startup time into a wide so that we
// can figure out GMT and DST.
JSLL_I2L(startupTimeMicroSeconds, startupTimeSeconds);
JSLL_I2L(oneMillion, PRMJ_USEC_PER_SEC);
JSLL_MUL(dstLocalBaseMicroseconds, oneMillion, startupTimeMicroSeconds);
}
// Because serial port and SLIP conflict with ReadXPram calls,
// we cache the call here
static void MyReadLocation(MachineLocation * loc)
{
static MachineLocation storedLoc; // InsideMac, OSUtilities, page 4-20
static JSBool didReadLocation = JS_FALSE;
if (!didReadLocation)
{
MacintoshInitializeTime();
ReadLocation(&storedLoc);
didReadLocation = JS_TRUE;
}
*loc = storedLoc;
}
#endif /* XP_MAC */
#define IS_LEAP(year) \
(year != 0 && ((((year & 0x3) == 0) && \
((year - ((year/100) * 100)) != 0)) || \
(year - ((year/400) * 400)) == 0))
#define PRMJ_HOUR_SECONDS 3600L
#define PRMJ_DAY_SECONDS (24L * PRMJ_HOUR_SECONDS)
#define PRMJ_YEAR_SECONDS (PRMJ_DAY_SECONDS * 365L)
#define PRMJ_MAX_UNIX_TIMET 2145859200L /*time_t value equiv. to 12/31/2037 */
/* function prototypes */
static void PRMJ_basetime(JSInt64 tsecs, PRMJTime *prtm);
/*
* get the difference in seconds between this time zone and UTC (GMT)
*/
time_t
PRMJ_LocalGMTDifference()
{
#if defined(XP_UNIX) || defined(XP_PC) || defined(XP_BEOS)
struct tm ltime;
/* get the difference between this time zone and GMT */
memset((char *)&ltime,0,sizeof(ltime));
ltime.tm_mday = 2;
ltime.tm_year = 70;
#ifdef SUNOS4
ltime.tm_zone = 0;
ltime.tm_gmtoff = 0;
return timelocal(&ltime) - (24 * 3600);
#else
return mktime(&ltime) - (24L * 3600L);
#endif
#endif
#if defined(XP_MAC)
static time_t zone = -1L;
MachineLocation machineLocation;
JSUint64 gmtOffsetSeconds;
JSUint64 gmtDelta;
JSUint64 dlsOffset;
JSInt32 offset;
/* difference has been set no need to recalculate */
if(zone != -1)
return zone;
/* Get the information about the local machine, including
* its GMT offset and its daylight savings time info.
* Convert each into wides that we can add to
* startupTimeMicroSeconds.
*/
MyReadLocation(&machineLocation);
/* Mask off top eight bits of gmtDelta, sign extend lower three. */
if ((machineLocation.u.gmtDelta & 0x00800000) != 0) {
gmtOffsetSeconds = (machineLocation.u.gmtDelta & 0x00FFFFFF) | 0xFFFFFFFFFF000000LL;
JSLL_UI2L(gmtDelta,0);
} else {
gmtOffsetSeconds = (machineLocation.u.gmtDelta & 0x00FFFFFFUL);
JSLL_UI2L(gmtDelta,PRMJ_DAY_SECONDS);
}
/*
* Normalize time to be positive if you are behind GMT. gmtDelta will
* always be positive.
*/
JSLL_SUB(gmtDelta,gmtDelta,gmtOffsetSeconds);
/* Is Daylight Savings On? If so, we need to add an hour to the offset. */
if (machineLocation.u.dlsDelta != 0) {
JSLL_UI2L(dlsOffset, PRMJ_HOUR_SECONDS);
} else {
JSLL_I2L(dlsOffset, 0);
}
JSLL_ADD(gmtDelta,gmtDelta, dlsOffset);
JSLL_L2I(offset,gmtDelta);
zone = offset;
return (time_t)offset;
#endif
}
/* Constants for GMT offset from 1970 */
#define G1970GMTMICROHI 0x00dcdcad /* micro secs to 1970 hi */
#define G1970GMTMICROLOW 0x8b3fa000 /* micro secs to 1970 low */
#define G2037GMTMICROHI 0x00e45fab /* micro secs to 2037 high */
#define G2037GMTMICROLOW 0x7a238000 /* micro secs to 2037 low */
/* Convert from base time to extended time */
static JSInt64
PRMJ_ToExtendedTime(JSInt32 base_time)
{
JSInt64 exttime;
JSInt64 g1970GMTMicroSeconds;
JSInt64 low;
time_t diff;
JSInt64 tmp;
JSInt64 tmp1;
diff = PRMJ_LocalGMTDifference();
JSLL_UI2L(tmp, PRMJ_USEC_PER_SEC);
JSLL_I2L(tmp1,diff);
JSLL_MUL(tmp,tmp,tmp1);
JSLL_UI2L(g1970GMTMicroSeconds,G1970GMTMICROHI);
JSLL_UI2L(low,G1970GMTMICROLOW);
#ifndef JS_HAVE_LONG_LONG
JSLL_SHL(g1970GMTMicroSeconds,g1970GMTMicroSeconds,16);
JSLL_SHL(g1970GMTMicroSeconds,g1970GMTMicroSeconds,16);
#else
JSLL_SHL(g1970GMTMicroSeconds,g1970GMTMicroSeconds,32);
#endif
JSLL_ADD(g1970GMTMicroSeconds,g1970GMTMicroSeconds,low);
JSLL_I2L(exttime,base_time);
JSLL_ADD(exttime,exttime,g1970GMTMicroSeconds);
JSLL_SUB(exttime,exttime,tmp);
return exttime;
}
JSInt64
PRMJ_Now(void)
{
#ifdef XP_PC
JSInt64 s, us, ms2us, s2us;
#ifndef __MWERKS__
struct timeb b;
#else
SYSTEMTIME time;
#endif /* __MWERKS__ */
#endif /* XP_PC */
#if defined(XP_UNIX) || defined(XP_BEOS)
struct timeval tv;
JSInt64 s, us, s2us;
#endif /* XP_UNIX */
#ifdef XP_MAC
JSUint64 upTime;
JSInt64 localTime;
JSInt64 gmtOffset;
JSInt64 dstOffset;
time_t gmtDiff;
JSInt64 s2us;
#endif /* XP_MAC */
#ifdef XP_PC
#ifndef __MWERKS__
ftime(&b);
JSLL_UI2L(ms2us, PRMJ_USEC_PER_MSEC);
JSLL_UI2L(s2us, PRMJ_USEC_PER_SEC);
JSLL_UI2L(s, b.time);
JSLL_UI2L(us, b.millitm);
JSLL_MUL(us, us, ms2us);
JSLL_MUL(s, s, s2us);
JSLL_ADD(s, s, us);
return s;
#else
GetLocalTime(&time);
JSLL_UI2L(ms2us, PRMJ_USEC_PER_MSEC);
JSLL_UI2L(s2us, PRMJ_USEC_PER_SEC);
JSLL_UI2L(s, time.wSecond);
JSLL_UI2L(us, time.wMilliseconds);
JSLL_MUL(us, us, ms2us);
JSLL_MUL(s, s, s2us);
JSLL_ADD(s, s, us);
return s;
#endif /* __MWERKS__ */
#endif
#if defined(XP_UNIX) || defined(XP_BEOS)
#ifdef _SVID_GETTOD /* Defined only on Solaris, see Solaris <sys/types.h> */
gettimeofday(&tv);
#else
gettimeofday(&tv, 0);
#endif /* _SVID_GETTOD */
JSLL_UI2L(s2us, PRMJ_USEC_PER_SEC);
JSLL_UI2L(s, tv.tv_sec);
JSLL_UI2L(us, tv.tv_usec);
JSLL_MUL(s, s, s2us);
JSLL_ADD(s, s, us);
return s;
#endif /* XP_UNIX */
#ifdef XP_MAC
JSLL_UI2L(localTime,0);
gmtDiff = PRMJ_LocalGMTDifference();
JSLL_I2L(gmtOffset,gmtDiff);
JSLL_UI2L(s2us, PRMJ_USEC_PER_SEC);
JSLL_MUL(gmtOffset,gmtOffset,s2us);
JSLL_UI2L(dstOffset,0);
dstOffset = PRMJ_DSTOffset(dstOffset);
JSLL_SUB(gmtOffset,gmtOffset,dstOffset);
/* don't adjust for DST since it sets ctime and gmtime off on the MAC */
Microseconds((UnsignedWide*)&upTime);
JSLL_ADD(localTime,localTime,gmtOffset);
JSLL_ADD(localTime,localTime, dstLocalBaseMicroseconds);
JSLL_ADD(localTime,localTime, upTime);
return *((JSUint64 *)&localTime);
#endif /* XP_MAC */
}
/* Get the DST timezone offset for the time passed in */
JSInt64
PRMJ_DSTOffset(JSInt64 local_time)
{
JSInt64 us2s;
#ifdef XP_MAC
MachineLocation machineLocation;
JSInt64 dlsOffset;
/* Get the information about the local machine, including
* its GMT offset and its daylight savings time info.
* Convert each into wides that we can add to
* startupTimeMicroSeconds.
*/
MyReadLocation(&machineLocation);
/* Is Daylight Savings On? If so, we need to add an hour to the offset. */
if (machineLocation.u.dlsDelta != 0) {
JSLL_UI2L(us2s, PRMJ_USEC_PER_SEC); /* seconds in a microseconds */
JSLL_UI2L(dlsOffset, PRMJ_HOUR_SECONDS); /* seconds in one hour */
JSLL_MUL(dlsOffset, dlsOffset, us2s);
} else {
JSLL_I2L(dlsOffset, 0);
}
return(dlsOffset);
#else
time_t local;
JSInt32 diff;
JSInt64 maxtimet;
struct tm tm;
PRMJTime prtm;
#if ( defined( USE_AUTOCONF ) && !defined( HAVE_LOCALTIME_R) ) || ( !defined ( USE_AUTOCONF ) && ( defined( XP_PC ) || defined( FREEBSD ) || defined ( HPUX9 ) || defined ( SNI ) || defined ( NETBSD ) || defined ( OPENBSD ) || defined( RHAPSODY ) ) )
struct tm *ptm;
#endif
JSLL_UI2L(us2s, PRMJ_USEC_PER_SEC);
JSLL_DIV(local_time, local_time, us2s);
/* get the maximum of time_t value */
JSLL_UI2L(maxtimet,PRMJ_MAX_UNIX_TIMET);
if(JSLL_CMP(local_time,>,maxtimet)){
JSLL_UI2L(local_time,PRMJ_MAX_UNIX_TIMET);
} else if(!JSLL_GE_ZERO(local_time)){
/*go ahead a day to make localtime work (does not work with 0) */
JSLL_UI2L(local_time,PRMJ_DAY_SECONDS);
}
JSLL_L2UI(local,local_time);
PRMJ_basetime(local_time,&prtm);
#if ( defined( USE_AUTOCONF ) && !defined( HAVE_LOCALTIME_R) ) || ( !defined ( USE_AUTOCONF ) && ( defined( XP_PC ) || defined( FREEBSD ) || defined ( HPUX9 ) || defined ( SNI ) || defined ( NETBSD ) || defined ( OPENBSD ) || defined( RHAPSODY ) ) )
ptm = localtime(&local);
if(!ptm){
return JSLL_ZERO;
}
tm = *ptm;
#else
localtime_r(&local,&tm); /* get dst information */
#endif
diff = ((tm.tm_hour - prtm.tm_hour) * PRMJ_HOUR_SECONDS) +
((tm.tm_min - prtm.tm_min) * 60);
if(diff < 0){
diff += PRMJ_DAY_SECONDS;
}
JSLL_UI2L(local_time,diff);
JSLL_MUL(local_time,local_time,us2s);
return(local_time);
#endif
}
/* Format a time value into a buffer. Same semantics as strftime() */
size_t
PRMJ_FormatTime(char *buf, int buflen, char *fmt, PRMJTime *prtm)
{
#if defined(XP_UNIX) || defined(XP_PC) || defined(XP_MAC) || defined(XP_BEOS)
struct tm a;
/* Zero out the tm struct. Linux, SunOS 4 struct tm has extra members int
* tm_gmtoff, char *tm_zone; when tm_zone is garbage, strftime gets
* confused and dumps core. NSPR20 prtime.c attempts to fill these in by
* calling mktime on the partially filled struct, but this doesn't seem to
* work as well; the result string has "can't get timezone" for ECMA-valid
* years. Might still make sense to use this, but find the range of years
* for which valid tz information exists, and map (per ECMA hint) from the
* given year into that range.
* N.B. This hasn't been tested with anything that actually _uses_
* tm_gmtoff; zero might be the wrong thing to set it to if you really need
* to format a time. This fix is for jsdate.c, which only uses
* JS_FormatTime to get a string representing the time zone. */
memset(&a, 0, sizeof(struct tm));
a.tm_sec = prtm->tm_sec;
a.tm_min = prtm->tm_min;
a.tm_hour = prtm->tm_hour;
a.tm_mday = prtm->tm_mday;
a.tm_mon = prtm->tm_mon;
a.tm_wday = prtm->tm_wday;
a.tm_year = prtm->tm_year - 1900;
a.tm_yday = prtm->tm_yday;
a.tm_isdst = prtm->tm_isdst;
/* Even with the above, SunOS 4 seems to detonate if tm_zone and tm_gmtoff
* are null. This doesn't quite work, though - the timezone is off by
* tzoff + dst. (And mktime seems to return -1 for the exact dst
* changeover time.)
*/
#if defined(SUNOS4)
if (mktime(&a) == -1) {
/* Seems to fail whenever the requested date is outside of the 32-bit
* UNIX epoch. We could proceed at this point (setting a.tm_zone to
* "") but then strftime returns a string with a 2-digit field of
* garbage for the year. So we return 0 and hope jsdate.c
* will fall back on toString.
*/
return 0;
}
#endif
return strftime(buf, buflen, fmt, &a);
#endif
}
/* table for number of days in a month */
static int mtab[] = {
/* jan, feb,mar,apr,may,jun */
31,28,31,30,31,30,
/* july,aug,sep,oct,nov,dec */
31,31,30,31,30,31
};
/*
* basic time calculation functionality for localtime and gmtime
* setups up prtm argument with correct values based upon input number
* of seconds.
*/
static void
PRMJ_basetime(JSInt64 tsecs, PRMJTime *prtm)
{
/* convert tsecs back to year,month,day,hour,secs */
JSInt32 year = 0;
JSInt32 month = 0;
JSInt32 yday = 0;
JSInt32 mday = 0;
JSInt32 wday = 6; /* start on a Sunday */
JSInt32 days = 0;
JSInt32 seconds = 0;
JSInt32 minutes = 0;
JSInt32 hours = 0;
JSInt32 isleap = 0;
JSInt64 result;
JSInt64 result1;
JSInt64 result2;
JSInt64 base;
JSLL_UI2L(result,0);
JSLL_UI2L(result1,0);
JSLL_UI2L(result2,0);
/* get the base time via UTC */
base = PRMJ_ToExtendedTime(0);
JSLL_UI2L(result, PRMJ_USEC_PER_SEC);
JSLL_DIV(base,base,result);
JSLL_ADD(tsecs,tsecs,base);
JSLL_UI2L(result, PRMJ_YEAR_SECONDS);
JSLL_UI2L(result1,PRMJ_DAY_SECONDS);
JSLL_ADD(result2,result,result1);
/* get the year */
while ((isleap == 0) ? !JSLL_CMP(tsecs,<,result) : !JSLL_CMP(tsecs,<,result2)) {
/* subtract a year from tsecs */
JSLL_SUB(tsecs,tsecs,result);
days += 365;
/* is it a leap year ? */
if(IS_LEAP(year)){
JSLL_SUB(tsecs,tsecs,result1);
days++;
}
year++;
isleap = IS_LEAP(year);
}
JSLL_UI2L(result1,PRMJ_DAY_SECONDS);
JSLL_DIV(result,tsecs,result1);
JSLL_L2I(mday,result);
/* let's find the month */
while(((month == 1 && isleap) ?
(mday >= mtab[month] + 1) :
(mday >= mtab[month]))){
yday += mtab[month];
days += mtab[month];
mday -= mtab[month];
/* it's a Feb, check if this is a leap year */
if(month == 1 && isleap != 0){
yday++;
days++;
mday--;
}
month++;
}
/* now adjust tsecs */
JSLL_MUL(result,result,result1);
JSLL_SUB(tsecs,tsecs,result);
mday++; /* day of month always start with 1 */
days += mday;
wday = (days + wday) % 7;
yday += mday;
/* get the hours */
JSLL_UI2L(result1,PRMJ_HOUR_SECONDS);
JSLL_DIV(result,tsecs,result1);
JSLL_L2I(hours,result);
JSLL_MUL(result,result,result1);
JSLL_SUB(tsecs,tsecs,result);
/* get minutes */
JSLL_UI2L(result1,60);
JSLL_DIV(result,tsecs,result1);
JSLL_L2I(minutes,result);
JSLL_MUL(result,result,result1);
JSLL_SUB(tsecs,tsecs,result);
JSLL_L2I(seconds,tsecs);
prtm->tm_usec = 0L;
prtm->tm_sec = (JSInt8)seconds;
prtm->tm_min = (JSInt8)minutes;
prtm->tm_hour = (JSInt8)hours;
prtm->tm_mday = (JSInt8)mday;
prtm->tm_mon = (JSInt8)month;
prtm->tm_wday = (JSInt8)wday;
prtm->tm_year = (JSInt16)year;
prtm->tm_yday = (JSInt16)yday;
}

90
mozilla/js/src/prmjtime.h Normal file
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@@ -0,0 +1,90 @@
/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
*
* The contents of this file are subject to the Netscape Public
* License Version 1.1 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.mozilla.org/NPL/
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express oqr
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* The Original Code is Mozilla Communicator client code, released
* March 31, 1998.
*
* The Initial Developer of the Original Code is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All
* Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the
* terms of the GNU Public License (the "GPL"), in which case the
* provisions of the GPL are applicable instead of those above.
* If you wish to allow use of your version of this file only
* under the terms of the GPL and not to allow others to use your
* version of this file under the NPL, indicate your decision by
* deleting the provisions above and replace them with the notice
* and other provisions required by the GPL. If you do not delete
* the provisions above, a recipient may use your version of this
* file under either the NPL or the GPL.
*/
#ifndef prmjtime_h___
#define prmjtime_h___
/*
* PR date stuff for mocha and java. Placed here temporarily not to break
* Navigator and localize changes to mocha.
*/
#include <time.h>
#include "jslong.h"
#ifdef MOZILLA_CLIENT
#include "jscompat.h"
#endif
JS_BEGIN_EXTERN_C
typedef struct PRMJTime PRMJTime;
/*
* Broken down form of 64 bit time value.
*/
struct PRMJTime {
JSInt32 tm_usec; /* microseconds of second (0-999999) */
JSInt8 tm_sec; /* seconds of minute (0-59) */
JSInt8 tm_min; /* minutes of hour (0-59) */
JSInt8 tm_hour; /* hour of day (0-23) */
JSInt8 tm_mday; /* day of month (1-31) */
JSInt8 tm_mon; /* month of year (0-11) */
JSInt8 tm_wday; /* 0=sunday, 1=monday, ... */
JSInt16 tm_year; /* absolute year, AD */
JSInt16 tm_yday; /* day of year (0 to 365) */
JSInt8 tm_isdst; /* non-zero if DST in effect */
};
/* Some handy constants */
#define PRMJ_USEC_PER_SEC 1000000L
#define PRMJ_USEC_PER_MSEC 1000L
/* Return the current local time in micro-seconds */
extern JSInt64
PRMJ_Now(void);
/* get the difference between this time zone and gmt timezone in seconds */
extern time_t
PRMJ_LocalGMTDifference(void);
/* Format a time value into a buffer. Same semantics as strftime() */
extern size_t
PRMJ_FormatTime(char *buf, int buflen, char *fmt, PRMJTime *tm);
/* Get the DST offset for the local time passed in */
extern JSInt64
PRMJ_DSTOffset(JSInt64 local_time);
JS_END_EXTERN_C
#endif /* prmjtime_h___ */

15
mozilla/js/src/resource.h Normal file
View File

@@ -0,0 +1,15 @@
//{{NO_DEPENDENCIES}}
// Microsoft Developer Studio generated include file.
// Used by js3240.rc
//
// Next default values for new objects
//
#ifdef APSTUDIO_INVOKED
#ifndef APSTUDIO_READONLY_SYMBOLS
#define _APS_NEXT_RESOURCE_VALUE 101
#define _APS_NEXT_COMMAND_VALUE 40001
#define _APS_NEXT_CONTROL_VALUE 1000
#define _APS_NEXT_SYMED_VALUE 101
#endif
#endif

140
mozilla/js/src/rules.mk Normal file
View File

@@ -0,0 +1,140 @@
ifdef USE_MSVC
LIB_OBJS = $(addprefix $(OBJDIR)/, $(LIB_CFILES:.c=.obj))
PROG_OBJS = $(addprefix $(OBJDIR)/, $(PROG_CFILES:.c=.obj))
else
LIB_OBJS = $(addprefix $(OBJDIR)/, $(LIB_CFILES:.c=.o))
LIB_OBJS += $(addprefix $(OBJDIR)/, $(LIB_ASFILES:.s=.o))
PROG_OBJS = $(addprefix $(OBJDIR)/, $(PROG_CFILES:.c=.o))
endif
CFILES = $(LIB_CFILES) $(PROG_CFILES)
OBJS = $(LIB_OBJS) $(PROG_OBJS)
ifdef USE_MSVC
# TARGETS = $(LIBRARY) # $(PROGRAM) not supported for MSVC yet
TARGETS += $(SHARED_LIBRARY) $(PROGRAM) # it is now
else
TARGETS += $(LIBRARY) $(SHARED_LIBRARY) $(PROGRAM)
endif
all:
+$(LOOP_OVER_PREDIRS)
ifneq "$(strip $(TARGETS))" ""
$(MAKE) -f Makefile.ref $(TARGETS)
endif
+$(LOOP_OVER_DIRS)
$(OBJDIR)/%: %.c
@$(MAKE_OBJDIR)
$(CC) -o $@ $(CFLAGS) $*.c $(LDFLAGS)
$(OBJDIR)/%.o: %.c
@$(MAKE_OBJDIR)
$(CC) -o $@ -c $(CFLAGS) $*.c
$(OBJDIR)/%.o: %.s
@$(MAKE_OBJDIR)
$(AS) -o $@ $(ASFLAGS) $*.s
# windows only
$(OBJDIR)/%.obj: %.c
@$(MAKE_OBJDIR)
$(CC) -Fo$(OBJDIR)/ -c $(CFLAGS) $(JSDLL_CFLAGS) $*.c
$(OBJDIR)/js.obj: js.c
@$(MAKE_OBJDIR)
$(CC) -Fo$(OBJDIR)/ -c $(CFLAGS) $<
ifeq ($(OS_ARCH),OS2)
$(LIBRARY): $(LIB_OBJS)
$(AR) $@ $? $(AR_OS2_SUFFIX)
$(RANLIB) $@
else
ifdef USE_MSVC
$(SHARED_LIBRARY): $(LIB_OBJS)
link.exe $(LIB_LINK_FLAGS) /base:0x61000000 $(OTHER_LIBS) \
/out:"$@" /pdb:none\
/implib:"$(OBJDIR)/$(@F:.dll=.lib)" $^
else
$(LIBRARY): $(LIB_OBJS)
$(AR) rv $@ $?
$(RANLIB) $@
$(SHARED_LIBRARY): $(LIB_OBJS)
$(MKSHLIB) -o $@ $(LIB_OBJS) $(LDFLAGS) $(OTHER_LIBS)
endif
endif
# Java stuff
$(CLASSDIR)/$(OBJDIR)/$(JARPATH)/%.class: %.java
mkdir -p $(@D)
$(JAVAC) $(JAVAC_FLAGS) $<
define MAKE_OBJDIR
if test ! -d $(@D); then rm -rf $(@D); mkdir $(@D); fi
endef
ifdef DIRS
LOOP_OVER_DIRS = \
@for d in $(DIRS); do \
if test -d $$d; then \
set -e; \
echo "cd $$d; $(MAKE) -f Makefile.ref $@"; \
cd $$d; $(MAKE) -f Makefile.ref $@; cd ..; \
set +e; \
else \
echo "Skipping non-directory $$d..."; \
fi; \
done
endif
ifdef PREDIRS
LOOP_OVER_PREDIRS = \
@for d in $(PREDIRS); do \
if test -d $$d; then \
set -e; \
echo "cd $$d; $(MAKE) -f Makefile.ref $@"; \
cd $$d; $(MAKE) -f Makefile.ref $@; cd ..; \
set +e; \
else \
echo "Skipping non-directory $$d..."; \
fi; \
done
endif
export:
+$(LOOP_OVER_PREDIRS)
mkdir -p $(DIST)/include $(DIST)/lib $(DIST)/bin
ifneq "$(strip $(HFILES))" ""
$(CP) $(HFILES) $(DIST)/include
endif
ifneq "$(strip $(LIBRARY))" ""
$(CP) $(LIBRARY) $(DIST)/lib
endif
ifneq "$(strip $(JARS))" ""
$(CP) $(JARS) $(DIST)/lib
endif
ifneq "$(strip $(SHARED_LIBRARY))" ""
$(CP) $(SHARED_LIBRARY) $(DIST)/lib
endif
ifneq "$(strip $(PROGRAM))" ""
$(CP) $(PROGRAM) $(DIST)/bin
endif
+$(LOOP_OVER_DIRS)
clean:
rm -rf $(OBJS)
cd fdlibm; $(MAKE) -f Makefile.ref clean
clobber:
rm -rf $(OBJS) $(TARGETS) $(DEPENDENCIES)
cd fdlibm; $(MAKE) -f Makefile.ref clobber
depend:
gcc -MM $(CFLAGS) $(LIB_CFILES)
tar:
tar cvf $(TARNAME) $(TARFILES)
gzip $(TARNAME)

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