first cut, works on unix, need to undo some s/STL/stl/ changes before final merge

git-svn-id: svn://10.0.0.236/branches/STLPORT_FUNFUNFUN@75136 18797224-902f-48f8-a5cc-f745e15eee43

mozilla/js/js2/Makefile

@@ -0,0 +1,44 @@
+STLPORT = /usr/local/include/stlport
+
+CC = gcc
+CFLAGS = -g -ggdb -DDEBUG -DXP_UNIX -Wall -W -Wpointer-arith \
+	-Wbad-function-cast -Wstrict-prototypes -Wmissing-prototypes \
+	-Wno-non-virtual-dtor -I$(STLPORT)
+
+objs = 	hash.o \
+	icodegenerator.o \
+	interpreter.o \
+	js2.o \
+	jsmath.o \
+	jstypes.o \
+	numerics.o \
+	parser.o \
+	utilities.o \
+	world.o \
+	vmtypes.o \
+	debugger.o
+
+gc_path = ../../gc/boehm/
+
+libs =	gc.a -lstdc++ -lm
+
+%.o : %.cpp
+	$(CC) -c $(CFLAGS) $< -o $@
+
+js2: $(objs) gc.a
+	$(CC) -o $@ -ggdb $(objs) $(libs)
+
+gc.a:
+	(cd $(gc_path) ; ln -f -s Makefile.unix Makefile ; make gc.a)
+	ln -f -s $(gc_path)gc.a ./gc.a
+
+gctest: gc_allocator.o
+	$(CC) -o $@ -ggdb $^ $(libs)
+
+clean:
+	rm -f $(objs)
+
+depend:
+	gcc -MM *.cpp > dependencies
+
+include dependencies

mozilla/js/js2/cplusplustests/CPlusPlusTests.dsp

@@ -0,0 +1,111 @@
+# Microsoft Developer Studio Project File - Name="CPlusPlusTests" - Package Owner=<4>
+# Microsoft Developer Studio Generated Build File, Format Version 6.00
+# ** DO NOT EDIT **
+
+# TARGTYPE "Win32 (x86) Console Application" 0x0103
+
+CFG=CPlusPlusTests - Win32 Debug
+!MESSAGE This is not a valid makefile. To build this project using NMAKE,
+!MESSAGE use the Export Makefile command and run
+!MESSAGE 
+!MESSAGE NMAKE /f "CPlusPlusTests.mak".
+!MESSAGE 
+!MESSAGE You can specify a configuration when running NMAKE
+!MESSAGE by defining the macro CFG on the command line. For example:
+!MESSAGE 
+!MESSAGE NMAKE /f "CPlusPlusTests.mak" CFG="CPlusPlusTests - Win32 Debug"
+!MESSAGE 
+!MESSAGE Possible choices for configuration are:
+!MESSAGE 
+!MESSAGE "CPlusPlusTests - Win32 Release" (based on "Win32 (x86) Console Application")
+!MESSAGE "CPlusPlusTests - Win32 Debug" (based on "Win32 (x86) Console Application")
+!MESSAGE 
+
+# Begin Project
+# PROP AllowPerConfigDependencies 0
+# PROP Scc_ProjName ""
+# PROP Scc_LocalPath ""
+CPP=cl.exe
+RSC=rc.exe
+
+!IF  "$(CFG)" == "CPlusPlusTests - Win32 Release"
+
+# PROP BASE Use_MFC 0
+# PROP BASE Use_Debug_Libraries 0
+# PROP BASE Output_Dir "Release"
+# PROP BASE Intermediate_Dir "Release"
+# PROP BASE Target_Dir ""
+# PROP Use_MFC 0
+# PROP Use_Debug_Libraries 0
+# PROP Output_Dir "Release"
+# PROP Intermediate_Dir "Release"
+# PROP Target_Dir ""
+# ADD BASE CPP /nologo /W3 /GX /O2 /D "WIN32" /D "NDEBUG" /D "_CONSOLE" /D "_MBCS" /YX /FD /c
+# ADD CPP /nologo /W3 /GX /O2 /D "WIN32" /D "NDEBUG" /D "_CONSOLE" /D "_MBCS" /YX /FD /c
+# ADD BASE RSC /l 0x409 /d "NDEBUG"
+# ADD RSC /l 0x409 /d "NDEBUG"
+BSC32=bscmake.exe
+# ADD BASE BSC32 /nologo
+# ADD BSC32 /nologo
+LINK32=link.exe
+# ADD BASE LINK32 kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib /nologo /subsystem:console /machine:I386
+# ADD LINK32 kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib /nologo /subsystem:console /machine:I386
+
+!ELSEIF  "$(CFG)" == "CPlusPlusTests - Win32 Debug"
+
+# PROP BASE Use_MFC 0
+# PROP BASE Use_Debug_Libraries 1
+# PROP BASE Output_Dir "Debug"
+# PROP BASE Intermediate_Dir "Debug"
+# PROP BASE Target_Dir ""
+# PROP Use_MFC 0
+# PROP Use_Debug_Libraries 1
+# PROP Output_Dir "Debug"
+# PROP Intermediate_Dir "Debug"
+# PROP Ignore_Export_Lib 0
+# PROP Target_Dir ""
+# ADD BASE CPP /nologo /W3 /Gm /GX /ZI /Od /D "WIN32" /D "_DEBUG" /D "_CONSOLE" /D "_MBCS" /YX /FD /GZ /c
+# ADD CPP /nologo /W3 /Gm /GX /Zi /Od /D "WIN32" /D "_DEBUG" /D "_CONSOLE" /D "_MBCS" /YX /FD /GZ /c
+# ADD BASE RSC /l 0x409 /d "_DEBUG"
+# ADD RSC /l 0x409 /d "_DEBUG"
+BSC32=bscmake.exe
+# ADD BASE BSC32 /nologo
+# ADD BSC32 /nologo
+LINK32=link.exe
+# ADD BASE LINK32 kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib /nologo /subsystem:console /debug /machine:I386 /pdbtype:sept
+# ADD LINK32 kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib /nologo /subsystem:console /debug /machine:I386 /pdbtype:sept
+
+!ENDIF 
+
+# Begin Target
+
+# Name "CPlusPlusTests - Win32 Release"
+# Name "CPlusPlusTests - Win32 Debug"
+# Begin Group "Source Files"
+
+# PROP Default_Filter "cpp;c;cxx;rc;def;r;odl;idl;hpj;bat"
+# Begin Source File
+
+SOURCE=.\cplusplustests.cpp
+
+!IF  "$(CFG)" == "CPlusPlusTests - Win32 Release"
+
+!ELSEIF  "$(CFG)" == "CPlusPlusTests - Win32 Debug"
+
+# ADD CPP /Ob1 /FR
+# SUBTRACT CPP /O<none> /YX
+
+!ENDIF 
+
+# End Source File
+# End Group
+# Begin Group "Header Files"
+
+# PROP Default_Filter "h;hpp;hxx;hm;inl"
+# End Group
+# Begin Group "Resource Files"
+
+# PROP Default_Filter "ico;cur;bmp;dlg;rc2;rct;bin;rgs;gif;jpg;jpeg;jpe"
+# End Group
+# End Target
+# End Project

mozilla/js/js2/cplusplustests/CPlusPlusTests.dsw

@@ -0,0 +1,29 @@
+Microsoft Developer Studio Workspace File, Format Version 6.00
+# WARNING: DO NOT EDIT OR DELETE THIS WORKSPACE FILE!
+
+###############################################################################
+
+Project: "CPlusPlusTests"=.\CPlusPlusTests.dsp - Package Owner=<4>
+
+Package=<5>
+{{{
+}}}
+
+Package=<4>
+{{{
+}}}
+
+###############################################################################
+
+Global:
+
+Package=<5>
+{{{
+}}}
+
+Package=<3>
+{{{
+}}}
+
+###############################################################################
+

mozilla/js/js2/cplusplustests/cplusplustests.cpp

@@ -0,0 +1,129 @@
+#include <cstddef>
+#include <cstdio>
+#include <cstdlib>
+#include <new>
+
+using namespace std;
+
+struct Arena {
+	const char *name;
+
+	Arena(const char *name): name(name) {}
+};
+
+
+void *operator new(size_t size, Arena &arena);
+void operator delete(void *p);
+
+void *operator new(size_t size, Arena &arena)
+{
+	void *p = malloc(size);
+	printf("Allocating %d bytes at %p using arena \"%s\"\n", size, p, arena.name);
+	return p;
+}
+
+#ifndef __MWERKS__
+void operator delete(void *p, Arena &arena)
+{
+	printf("Deleting object at %p using arena \"%s\"\n", p, arena.name);
+}
+#endif
+
+
+void operator delete(void *p)
+{
+	printf("Deleting object at %p\n", p);
+}
+
+
+struct C {
+	int n;
+
+	C(int n, bool bad = false);
+	~C();
+};
+
+struct Exception {
+	int num;
+
+	explicit Exception(int n): num(n) {}
+};
+
+
+C::C(int n, bool bad): n(n)
+{
+	printf("Constructing C #%d at %p\n", n, this);
+	if (bad) {
+		printf("Throwing %d; constructor aborted\n", n);
+		throw Exception(n);
+	}
+}
+
+C::~C()
+{
+	printf("Destroying C #%d at %p\n", n, this);
+}
+
+
+static void constructorTest1(int n, bool bad)
+{
+	try {
+		printf("Calling C(%d,%d)\n", n, (int)bad);
+		{
+			C c(n, bad);
+			printf("We have C #%d\n", c.n);
+		}
+		printf("C is out of scope\n");
+	} catch (Exception &e) {
+		printf("Caught exception %d\n", e.num);
+	}
+	printf("\n");
+}
+
+
+static void constructorTest2(int n, bool bad)
+{
+	try {
+		printf("Calling new C(%d,%d)\n", n, (int)bad);
+		{
+			C *c = new C(n, bad);
+			printf("We have C #%d\n", c->n);
+			delete c;
+		}
+		printf("C is out of scope\n");
+	} catch (Exception &e) {
+		printf("Caught exception %d\n", e.num);
+	}
+	printf("\n");
+}
+
+
+static void constructorTest3(int n, bool bad)
+{
+	try {
+		printf("Calling new(arena) C(%d,%d)\n", n, (int)bad);
+		{
+			Arena arena("My arena");
+			C *c = new(arena) C(n, bad);
+			printf("We have C #%d\n", c->n);
+		}
+		printf("C is out of scope\n");
+	} catch (Exception &e) {
+		printf("Caught exception %d\n", e.num);
+	}
+	printf("\n");
+}
+
+
+int main()
+{
+	printf("Beginning constructor tests\n\n");
+	constructorTest1(1, false);
+	constructorTest1(2, true);
+	constructorTest2(3, false);
+	constructorTest2(4, true);
+	constructorTest3(5, false);
+	constructorTest3(6, true);
+	printf("Ending constructor tests\n");
+	return 0;
+}

mozilla/js/js2/cpucfg.h

@@ -0,0 +1,191 @@
+/* -*- Mode: C; tab-width: 4; 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 cpucfg_h
+#define cpucfg_h
+
+#define JS_HAVE_LONG_LONG
+
+#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, or XP_UNIX"
+
+#endif
+
+#endif

mozilla/js/js2/debugger.cpp

@@ -0,0 +1,466 @@
+/* -*- Mode: C++; tab-width: 4; 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 the JavaScript 2 Prototype.
+ *
+ * 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 "world.h"
+#include "debugger.h"
+
+#include <string>
+#include <ctype.h>
+#include <assert.h>
+
+namespace JavaScript {
+namespace Debugger {
+
+    using namespace Interpreter;
+
+    /* keep in sync with list in debugger.h */
+    static const char *shell_cmds[][3] = {
+        {"assemble", "", 0},
+        {"ambiguous", "", "Test command for ambiguous command detection"},
+        {"ambiguous2", "", "Test command for ambiguous command detection"},
+        {"continue", "", "Continue execution until complete."},
+        {"dissassemble", "[start_pc] [end_pc]", "Dissassemble entire module, or subset of module."},
+        {"exit", "", 0},
+        {"help", "", "Display this message."},
+        {"istep", "", "Execute the current opcode and stop."},
+        {"let", "", "Set a debugger environment variable."},
+        {"print", "", 0},
+        {"register", "", "(nyi) Show the value of a single register or all registers, or set the value of a single register."},
+        {"step", "", "Execute the current JS statement and stop."},
+        {0, 0} /* sentry */
+    };
+
+    enum ShellVariable {
+        TRACE_SOURCE,
+        TRACE_ICODE,
+        VARIABLE_COUNT
+    };
+    
+    static const char *shell_vars[][3] = {
+        {"tracesource", "", "(bool) Show JS source while executing."},
+        {"traceicode", " ", "(bool) Show opcodes while executing."},
+        {0, 0} /* sentry */
+    };
+    
+    /* return true if str2 starts with/is str1
+     * XXX ignore case */
+    static bool
+    startsWith (const String &str1, const String &str2)
+    {
+        uint n;
+        size_t m = str1.size();
+
+        if (m > str2.size())
+            return false;
+
+        for (n = 0; n < m; ++n)
+            if (str1[n] != str2[n])
+                return false;
+        
+        return true;
+    }
+
+
+    /**
+     * locate the best match for |partial| in the command list |list|.
+     * if no matches are found, return |length|, if multiple matches are found,
+     * return |length| plus the number of ambiguous matches
+     */
+    static uint32
+    matchElement (const String &partial, const char *list[][3], size_t length)
+    {
+        uint32 ambig_matches = 0;
+        uint32 match = length;
+        
+        for (uint32 i = 0; i < length ; ++i)
+        {
+            String possibleMatch (widenCString(list[i][0]));
+            if (startsWith(partial, possibleMatch))
+            {
+                if (partial.size() == possibleMatch.size())
+                {
+                    /* exact match */
+                    ambig_matches = 0;
+                    return i;
+                }
+                else if (match == COMMAND_COUNT) /* no match yet */
+                    match = i;
+                else
+                    ++ambig_matches; /* something already matched, 
+                                      * ambiguous command */
+            }
+            
+        }
+
+        if (ambig_matches == 0)
+            return match;
+        else
+            return length + ambig_matches;
+        
+    }    
+
+    static void
+    showHelp(Formatter &out)
+    {
+        int i;
+        
+        out << "JavaScript 2.0 Debugger Help...\n\n";
+        
+        for (i = 0; shell_cmds[i][0] != 0; i++)
+        {
+            out << "Command : " << shell_cmds[i][0] << " " << 
+                shell_cmds[i][1] << "\n";
+
+            if (shell_cmds[i][2])
+                out << "Help    : " << shell_cmds[i][2] << "\n";
+            else
+                out << "Help    : (probably) Not Implemented.\n";
+        }
+    }
+
+    static uint32
+    getClosestSourcePosForPC (Context *cx, InstructionIterator pc)
+    {
+        ICodeModule *iCode = cx->getICode();
+        
+        if (iCode->mInstructionMap->begin() == iCode->mInstructionMap->end())
+            return NotABanana;
+            /*NOT_REACHED ("Instruction map is empty, waah.");*/
+
+        InstructionMap::iterator pos_iter =
+            iCode->mInstructionMap->upper_bound (pc - iCode->its_iCode->begin());
+        if (pos_iter != iCode->mInstructionMap->begin())
+            --pos_iter;
+    
+        return pos_iter->second;
+    }
+        
+    void
+    Shell::showSourceAtPC (Context *cx, InstructionIterator pc)
+    {
+        if (!mResolveFileCallback)
+        {
+            mErr << "Source not available (Debugger was improperly initialized.)\n";
+            return;
+        }
+
+        ICodeModule *iCode = cx->getICode();
+
+        String fn = iCode->getFileName();
+        const Reader *reader = mResolveFileCallback(fn);
+        if (!reader)
+        {
+            mErr << "Source not available.\n";
+            return;
+        }
+        
+        uint32 pos = getClosestSourcePosForPC(cx, pc);
+        if (pos == NotABanana)
+        {
+            mErr << "Map is empty, cannot display source.\n";
+            return;
+        }
+            
+        uint32 lineNum = reader->posToLineNum (pos);
+        const char16 *lineBegin, *lineEnd;
+
+        uint32 lineStartPos = reader->getLine (lineNum, lineBegin, lineEnd);
+        String sourceLine (lineBegin, lineEnd);
+        
+        mOut << fn << ":" << lineNum << " " << sourceLine << "\n";
+
+        uint padding = fn.length() + (uint32)(lineNum / 10) + 3;
+        uint i;        
+
+        for (i = 0; i < padding; i++)
+            mOut << " ";
+        
+        padding = (pos - lineStartPos);
+        for (i = 0; i < padding; i++)
+            mOut << ".";
+        
+        mOut << "^\n";
+        
+    }
+
+    void
+    Shell::showOpAtPC(Context* cx, InstructionIterator pc)
+    {
+        ICodeModule *iCode = cx->getICode();
+
+        if ((pc < iCode->its_iCode->begin()) ||
+            (pc >= iCode->its_iCode->end()))
+        {
+            mErr << "PC Out Of Range.";
+            return;
+        }
+
+        JSValues &registers = cx->getRegisters();
+
+        printFormat(mOut, "trace [%02u:%04u]: ",
+                    iCode->mID, (pc - iCode->its_iCode->begin()));
+        Instruction* i = *pc;
+        stdOut << *i;
+        if (i->op() != BRANCH && i->count() > 0) {
+            mOut << " [";
+            i->printOperands(stdOut, registers);
+            mOut << "]\n";
+        } else {
+            mOut << '\n';
+        }
+    }    
+
+    void
+    Shell::listen(Context* cx, Context::Event event)
+    {
+        InstructionIterator pc = cx->getPC();
+        
+        if (mTraceSource)
+            showSourceAtPC (cx, pc);
+        if (mTraceICode)
+            showOpAtPC (cx, pc);
+            
+        if (!(mStopMask & event))
+            return;
+
+        if ((mLastCommand == STEP) && (mLastICodeID == cx->getICode()->mID) &&
+            (mLastSourcePos == getClosestSourcePosForPC (cx, cx->getPC())))
+            /* we're in source-step mode, and the source position hasn't
+             * changed yet */
+            return;
+
+        if (!mTraceSource && !mTraceICode)
+            showSourceAtPC (cx, pc);
+                
+        static String lastLine(widenCString("help\n"));
+        String line;
+        LineReader reader(mIn);
+
+        do {
+            stdOut << "jsd";
+            if (mLastCommand != COMMAND_COUNT)
+                stdOut << " (" << shell_cmds[mLastCommand][0] << ") ";
+            stdOut << "> ";
+        
+            reader.readLine(line);
+
+            if (line[0] == uni::lf)
+                line = lastLine;
+            else
+                lastLine = line;
+
+        } while (doCommand(cx, line));
+    }
+
+
+    /**
+     * lex and execute the debugger command in |source|, return true if the
+     * command does not require the script being debugged to continue (eg, ask
+     * for more debugger input.)
+     */
+    bool
+    Shell::doCommand (Interpreter::Context *cx, const String &source)
+    {
+        Lexer lex (mWorld, source, widenCString("debugger console"), 0);
+        const String *cmd;
+        uint32 match;
+        bool rv = true;
+        
+        const Token &t = lex.get(true);
+
+        if (t.hasKind(Token::identifier))
+            cmd = &(t.getIdentifier());
+        else
+        {
+            mErr << "you idiot.\n";
+            return true;
+        }        
+
+        match = matchElement (*cmd, shell_cmds, (size_t)COMMAND_COUNT);
+        
+        if (match <= (uint32)COMMAND_COUNT)
+        {
+            switch ((ShellCommand)match)
+            {
+                case COMMAND_COUNT:
+                    mErr << "Unknown command '" << *cmd << "'.\n";
+                    break;
+
+                case AMBIGUOUS:
+                case AMBIGUOUS2:
+                    mErr << "I pity the foogoo.\n";
+                    break;
+
+                case CONTINUE:
+                    mStopMask &= (Context::EV_ALL ^ Context::EV_STEP);
+                    rv = false;
+                    break;
+
+                case DISSASSEMBLE:
+                    mOut << *cx->getICode();
+                    break;    
+
+                case HELP:
+                    showHelp (mOut);
+                    break;
+
+                case PRINT:
+                    doPrint (cx, lex);
+                    break;
+                    
+                case STEP:
+                    mStopMask |= Context::EV_STEP;
+                    rv = false;
+                    break;
+                    
+                case LET:
+                    doSetVariable (lex);
+                    break;
+
+                default:
+                    mErr << "Input '" << *cmd << "' matched unimplemented " <<
+                        "command '" << shell_cmds[match][0] << "'.\n";
+                    break;
+                    
+            }
+
+            mLastSourcePos = getClosestSourcePosForPC (cx, cx->getPC());
+            mLastICodeID = cx->getICode()->mID;
+            mLastCommand = (ShellCommand)match;
+
+        } else
+            mErr << "Ambiguous command '" << *cmd << "', " <<
+                (match - (uint32)COMMAND_COUNT + 1) << " similar commands.\n";
+
+        return rv;        
+    }
+
+    void
+    Shell::doSetVariable (Lexer &lex)
+    {
+        uint32 match;
+        const String *varname;        
+        const Token *t = &(lex.get(true));
+
+        if (t->hasKind(Token::identifier))
+            varname = &(t->getIdentifier());
+        else
+        {
+            mErr << "invalid variable name.\n";
+            return;
+        }        
+
+        match = matchElement (*varname, shell_vars, (size_t)VARIABLE_COUNT);
+
+        if (match <= (uint32)VARIABLE_COUNT)
+            switch ((ShellVariable)match)
+            {
+                case VARIABLE_COUNT:
+                    mErr << "Unknown variable '" << *varname << "'.\n";
+                    break;
+                    
+                case TRACE_SOURCE:
+                    t = &(lex.get(true));
+                    if (t->hasKind(Token::assignment))
+                        t = &(lex.get(true)); /* optional = */
+
+                    if (t->hasKind(Token::True))
+                        mTraceSource = true;
+                    else if (t->hasKind(Token::False))
+                        mTraceSource = false;
+                    else
+                        goto badval;
+                    break;
+
+                case TRACE_ICODE:
+                    t = &(lex.get(true));
+                    if (t->hasKind(Token::assignment))
+                        t = &(lex.get(true)); /* optional = */
+
+                    if (t->hasKind(Token::True))
+                        mTraceICode = true;
+                    else if (t->hasKind(Token::False))
+                        mTraceICode = false;
+                    else
+                        goto badval;
+                    break;
+
+                default:
+                    mErr << "Variable '" << *varname <<
+                        "' matched unimplemented variable '" << 
+                        shell_vars[match][0] << "'.\n";
+            }
+        else
+            mErr << "Ambiguous variable '" << *varname << "', " <<
+                (match - (uint32)COMMAND_COUNT + 1) << " similar variables.\n";
+        
+        return;
+        
+    badval:
+        mErr << "Invalid value for variable '" <<
+            shell_vars[(ShellVariable)match][0] << "'\n";
+
+    }
+    
+    void
+    Shell::doPrint (Context *, Lexer &lex)
+    {
+        const Token *t = &(lex.get(true));
+
+        if (!(t->hasKind(Token::identifier)))
+        {
+            mErr << "Invalid register name.\n";
+            return;
+        }
+
+/*
+        const StringAtom *name = &(t->getIdentifier());
+        
+        VariableMap::iterator i = ((cx->getICode())->itsVariables)->find(*name);
+//        if (i)
+            mOut << (*i).first << " = " << (*i).second << "\n";
+//        else
+//            mOut << "No " << *name << " defined.\n";
+  
+*/      
+    }
+    
+            
+            
+    
+} /* namespace Debugger */
+} /* namespace JavaScript */
+
+                    
+            
+        

mozilla/js/js2/debugger.h

@@ -0,0 +1,163 @@
+/* -*- Mode: C++; tab-width: 4; 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 the JavaScript 2 Prototype.
+ *
+ * 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 all vapor, don't take it to serious yet */
+
+#ifndef debugger_h
+#define debugger_h
+
+#include "utilities.h"
+#include "interpreter.h"
+
+#include <stdio.h>
+
+namespace JavaScript {
+namespace Debugger {
+
+    using namespace Interpreter;
+
+    class Shell;
+    
+    typedef const Reader *ResolveFileCallback (const String &fileName);
+    typedef bool DebuggerCommandCallback (Shell &debugger, const Lexer &lex);
+
+    class Breakpoint {
+    public:
+        /* representation of a breakpoint */
+        void set();
+        void clear();
+        bool getState();
+        InstructionIterator getPC();
+    };    
+
+    struct DebuggerCommand
+    {
+        DebuggerCommand(String aName, String aParamDesc, String aShortHelp,
+                        String aLongHelp = widenCString("No more help available."),
+                        DebuggerCommandCallback *aCommandFunction = 0) 
+            : mName(aName), mParamDesc(aParamDesc), mShortHelp(aShortHelp),
+              mLongHelp(aLongHelp), mCommandFunction(aCommandFunction) {}
+
+        String mName;
+        String mParamDesc;
+        String mShortHelp;
+        String mLongHelp;
+        DebuggerCommandCallback *mCommandFunction;
+    };
+
+    /* keep in sync with list in debugger.cpp */
+    enum ShellCommand {
+        ASSEMBLE,
+        AMBIGUOUS,
+        AMBIGUOUS2,
+        CONTINUE,
+        DISSASSEMBLE,
+        EXIT,
+        HELP,
+        ISTEP,
+        LET,
+        PRINT,
+        REGISTER,
+        STEP,
+        COMMAND_COUNT
+    };
+        
+    class Shell : public Context::Listener {
+    public:        
+        Shell (World &aWorld, FILE *aIn, Formatter &aOut, Formatter &aErr,
+               ResolveFileCallback *aCallback = 0) :
+            mWorld(aWorld), mIn(aIn), mOut(aOut), mErr(aErr),
+            mResolveFileCallback(aCallback), mStopMask(Context::EV_DEBUG),
+            mTraceSource(false), mTraceICode(false), mLastSourcePos(0),
+            mLastICodeID(NotABanana), mLastCommand(COMMAND_COUNT)
+        {
+        }
+
+        ~Shell ()
+        {
+        }
+        
+        ResolveFileCallback
+            *setResolveFileCallback (ResolveFileCallback  *aCallback)
+        {
+            ResolveFileCallback *rv = mResolveFileCallback;
+            mResolveFileCallback = aCallback;
+            return rv;
+        }
+        
+        void listen(Context *context, Context::Event event);
+        
+        /**
+         * install on a context
+         */
+        bool attachToContext (Context *aContext)
+        {
+            aContext->addListener (this);
+            return true;
+        }
+        
+        /**
+         * detach an icdebugger from a context
+         */
+        bool detachFromContext (Context *aContext)
+        {
+            aContext->removeListener (this);
+            return true;
+        }
+
+        FILE *getIStream() { return mIn; }
+        Formatter &getOStream() { return mOut; }
+        Formatter &getEStream() { return mErr; }
+
+    private:
+        bool doCommand (Context *cx, const String &aSource);
+        void doSetVariable (Lexer &lex);
+        void doPrint (Context *cx, Lexer &lex);
+
+        void showOpAtPC(Context* cx, InstructionIterator pc);
+        void showSourceAtPC(Context* cx, InstructionIterator pc);
+        
+        World &mWorld;
+        FILE *mIn;
+        Formatter &mOut, &mErr;
+        ResolveFileCallback *mResolveFileCallback;
+        uint32 mStopMask;
+        bool mTraceSource, mTraceICode;
+        uint32 mLastSourcePos, mLastICodeID;
+        ShellCommand mLastCommand;
+    };    
+
+} /* namespace Debugger */
+} /* namespace JavaScript */
+
+#endif /* debugger_h */

mozilla/js/js2/dependencies

@@ -0,0 +1,26 @@
+debugger.o: debugger.cpp world.h utilities.h systemtypes.h hash.h \
+ parser.h debugger.h interpreter.h jstypes.h gc_allocator.h vmtypes.h \
+ numerics.h jsclasses.h icode.h icodegenerator.h
+gc_allocator.o: gc_allocator.cpp gc_allocator.h gc_container.h
+hash.o: hash.cpp hash.h utilities.h systemtypes.h
+icodegenerator.o: icodegenerator.cpp numerics.h utilities.h \
+ systemtypes.h world.h hash.h parser.h vmtypes.h jstypes.h \
+ gc_allocator.h jsclasses.h icode.h icodegenerator.h interpreter.h
+interpreter.o: interpreter.cpp interpreter.h utilities.h systemtypes.h \
+ jstypes.h gc_allocator.h vmtypes.h numerics.h jsclasses.h world.h \
+ hash.h parser.h icode.h icodegenerator.h jsmath.h
+js2.o: js2.cpp world.h utilities.h systemtypes.h hash.h parser.h \
+ interpreter.h jstypes.h gc_allocator.h vmtypes.h numerics.h \
+ jsclasses.h icode.h icodegenerator.h debugger.h
+jsmath.o: jsmath.cpp jsmath.h jstypes.h utilities.h systemtypes.h \
+ gc_allocator.h
+jstypes.o: jstypes.cpp jstypes.h utilities.h systemtypes.h \
+ gc_allocator.h jsclasses.h numerics.h icodegenerator.h parser.h \
+ vmtypes.h world.h hash.h icode.h
+numerics.o: numerics.cpp numerics.h utilities.h systemtypes.h
+parser.o: parser.cpp numerics.h utilities.h systemtypes.h parser.h \
+ world.h hash.h
+utilities.o: utilities.cpp utilities.h systemtypes.h
+vmtypes.o: vmtypes.cpp utilities.h systemtypes.h vmtypes.h numerics.h \
+ jstypes.h gc_allocator.h jsclasses.h world.h hash.h parser.h icode.h
+world.o: world.cpp world.h utilities.h systemtypes.h hash.h parser.h

mozilla/js/js2/gc_allocator.cpp

@@ -0,0 +1,150 @@
+// -*- Mode: C++; tab-width: 4; indent-tabs-mode: t; 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 the JavaScript 2 Prototype.
+//
+// The Initial Developer of the Original Code is Netscape
+// Communications Corporation.  Portions created by Netscape are
+// Copyright (C) 2000 Netscape Communications Corporation. All
+// Rights Reserved.
+
+#include <iostream>
+#include <string>
+#include <vector>
+#include <algorithm>
+
+#include "gc_allocator.h"
+#include "gc_container.h"
+
+/*
+namespace JavaScript {
+
+template <class T>
+typename gc_allocator<T>::pointer
+gc_allocator<T>::allocate(gc_allocator<T>::size_type n, const void*)
+{
+	return static_cast<pointer>(GC_malloc(n*sizeof(T)));
+}
+
+template <class T>
+void gc_allocator<T>::deallocate(gc_allocator<T>::pointer ptr, gc_allocator<T>::size_type)
+{
+	// this can really be a NO-OP with the GC.
+	// ::GC_free(static_cast<void*>(ptr));
+}
+
+}
+ */
+
+// test driver for standalone GC development.
+
+namespace JS = JavaScript;
+
+template <class T>
+void* operator new(std::size_t, const JS::gc_allocator<T>& alloc)
+{
+	return alloc.allocate(1);
+}
+
+/**
+ * Define a C++ class that is garbage collectable, and wants to have its destructor
+ * called when it is finalized.
+ */
+class A {
+public:
+	typedef JS::gc_traits_finalizable<A> traits;
+	typedef JS::gc_allocator<A, traits> allocator;
+	friend struct traits;
+	
+	static int instances;
+	
+	void* operator new(std::size_t)
+	{
+		return allocator::allocate(1);
+	}
+	
+	A()
+	{
+		++instances;
+		std::cout << "A::A() here." << std::endl;
+	}
+
+protected:	
+	~A()
+	{
+		--instances;
+		std::cout << "A::~A() here." << std::endl;
+	}
+
+private:
+	// void operator delete(void*) {}
+};
+
+int A::instances = 0;
+
+int main(int /* argc */, char* /* argv[] */)
+{
+	using namespace std;
+	using namespace JS;
+
+	cout << "testing the GC allocator." << endl;
+
+#ifdef XP_MAC
+	// allocate a string, using the GC, and owned by an auto_ptr, that knows how to correctly destroy the string.
+	typedef gc_container<char>::string char_string;
+	typedef gc_allocator<char_string> char_string_alloc;
+	auto_ptr<char_string, char_string_alloc> ptr(new(char_string_alloc()) char_string("This is a garbage collectable string."));
+	const char_string& str = *ptr;
+	cout << str << endl;
+#endif
+	
+	// question, how can we partially evaluate a template?
+	// can we say, typedef template <class T> vector<typename T>.
+	// typedef vector<int, gc_allocator<int> > int_vector;
+	typedef gc_container<int>::vector int_vector;
+	
+	// generate 1000 random values.
+	int_vector values;
+	for (int i = 0; i < 1000; ++i) {
+		int value = rand() % 32767;
+		values.push_back(value);
+		// allocate a random amount of garbage.
+		if (!GC_malloc(static_cast<size_t>(value)))
+			cerr << "GC_malloc failed." << endl;
+		// allocate an object that has a finalizer to call its destructor.
+		A* a = new A();
+	}
+
+	// run a collection.
+	// gc_allocator<void>::collect();
+	GC_gcollect();
+
+	// print out instance count.
+	cout << "A::instances = " << A::instances << endl;
+	
+	// sort the values.
+	sort(values.begin(), values.end());
+	
+	// print the values.
+	int_vector::iterator iter = values.begin(), last = values.end();
+	cout << *iter++;
+	while (iter < last)
+		cout << ' ' << *iter++;
+	cout << endl;
+
+#ifdef XP_MAC	
+	// finally, print the string again.
+	cout << str << endl;
+#endif
+
+	return 0;
+}

mozilla/js/js2/gc_allocator.h

@@ -0,0 +1,178 @@
+// -*- Mode: C++; tab-width: 4; indent-tabs-mode: t; 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 the JavaScript 2 Prototype.
+//
+// The Initial Developer of the Original Code is Netscape
+// Communications Corporation.  Portions created by Netscape are
+// Copyright (C) 2000 Netscape Communications Corporation. All
+// Rights Reserved.
+
+#ifndef gc_allocator_h
+#define gc_allocator_h
+
+#include <memory>
+
+#ifndef _WIN32 // Microsoft VC6 bug: standard identifiers should be in std namespace
+using std::size_t;
+using std::ptrdiff_t;
+#endif
+
+namespace JavaScript {
+    extern "C" {
+        void* GC_malloc(size_t bytes);
+        void* GC_malloc_atomic(size_t bytes);
+        void GC_free(void* ptr);
+        void GC_gcollect(void);
+
+        typedef void (*GC_finalization_proc) (void* obj, void* client_data);
+        void GC_register_finalizer(void* obj, GC_finalization_proc proc, void* client_data,
+                                   GC_finalization_proc *old_proc, void* *old_client_data);
+    }
+
+    #if 0 && !defined(XP_MAC)
+    // for platforms where GC doesn't exist yet.
+    inline void* GC_malloc(size_t bytes) { return ::operator new(bytes); }
+    inline void* GC_malloc_atomic(size_t bytes) { return ::operator new(bytes); }
+    inline void GC_free(void* ptr) { operator delete(ptr); }
+    inline void GC_gcollect() {}
+    inline void GC_register_finalizer(void* obj, GC_finalization_proc proc, void* client_data,
+                                      GC_finalization_proc *old_proc, void* *old_client_data) {}
+    #endif
+    
+	/**
+	 * General case:  memory for type must be allocated as a conservatively
+	 * scanned block of memory.
+	 */
+	template <class T> struct gc_traits {
+		static T* allocate(size_t n) { return static_cast<T*>(GC_malloc(n * sizeof(T))); }
+	};
+	
+	/**
+	 * Specializations for blocks of atomic types:  the macro define_atomic_type(_type)
+	 * specializes gc_traits<T> for types that need not be scanned by the
+	 * GC. Implementors are free to define other types as atomic, if they are
+	 * guaranteed not to contain pointers.
+	 */
+	#define define_atomic_type(_type) 											\
+	template <> struct gc_traits<_type> {										\
+		static _type* allocate(size_t n)										\
+		{																		\
+			return static_cast<_type*>(GC_malloc_atomic(n * sizeof(_type)));	\
+		}																		\
+	};
+	
+	define_atomic_type(char)
+	define_atomic_type(unsigned char)
+	define_atomic_type(short)
+	define_atomic_type(unsigned short)
+	define_atomic_type(int)
+	define_atomic_type(unsigned int)
+	define_atomic_type(long)
+	define_atomic_type(unsigned long)
+	define_atomic_type(float)
+	define_atomic_type(double)
+	
+	#undef define_atomic_type
+	
+	/**
+	 * Traits for classes that need to have their destructor called
+	 * when reclaimed by the garbage collector.
+	 */
+	template <class T> struct gc_traits_finalizable {
+		static void finalizer(void* obj, void* client_data)
+		{
+			T* t = static_cast<T*>(obj);
+			size_t n = reinterpret_cast<size_t>(client_data);
+			for (size_t i = 0; i < n; ++i)
+				t[i].~T();
+		}
+		
+		static T* allocate(size_t n)
+		{
+			T* t = gc_traits<T>::allocate(n);
+			GC_finalization_proc old_proc; void* old_client_data;
+			GC_register_finalizer(t, &finalizer, reinterpret_cast<void*>(n), &old_proc, &old_client_data);
+			return t;
+		}
+	};
+	
+	/**
+	 * An allocator that can be used to allocate objects in the garbage collected heap.
+	 */
+	template <class T, class traits = gc_traits<T> > class gc_allocator {
+	public:
+		typedef T value_type;
+		typedef size_t size_type;
+		typedef ptrdiff_t difference_type;
+		typedef T *pointer;
+		typedef const T *const_pointer;
+		typedef T &reference;
+		typedef const T &const_reference;
+		
+		gc_allocator() {}
+		template<typename U, typename UTraits> gc_allocator(const gc_allocator<U, UTraits>&) {}
+		// ~gc_allocator() {}
+
+		static pointer address(reference r) { return &r; }
+		static const_pointer address(const_reference r) { return &r; }
+				
+		static pointer allocate(size_type n, const void* /* hint */ = 0) { return traits::allocate(n); }
+		static void deallocate(pointer, size_type) {}
+		
+		static void construct(pointer p, const T &val) { new(p) T(val);}
+		static void destroy(pointer p) { p->~T(); }
+		
+#if defined(__GNUC__) || defined(_WIN32)
+        static size_type max_size() { return size_type(-1) / sizeof(T); }
+#else
+		static size_type max_size() { return std::numeric_limits<size_type>::max() / sizeof(T); }
+#endif
+
+		template<class U> struct rebind { typedef gc_allocator<U> other; };
+
+#ifdef _WIN32
+		// raw byte allocator used on some platforms (grrr).
+		typedef char _Char[1];
+		static char* _Charalloc(size_type n) { return (char*) rebind<_Char>::other::allocate(n); }
+
+        // funky operator required for calling basic_string<T> constructor (grrr).
+        template<typename U, typename UTraits> int operator==(const gc_allocator<U, UTraits>&) { return 0; }
+#endif
+
+		// void* deallocate used on some platforms (grrr).
+		static void deallocate(void*, size_type) {}
+
+		static void collect() { GC_gcollect(); }
+	};
+
+    /**
+     * Generic base class for objects allocated using a gc_allocator. How they are allocated
+     * can be controlled by specializing gc_traits for the specific class.
+     */
+    template <typename T> class gc_object {
+    public:
+        void* operator new(size_t) { return gc_allocator<T>::allocate(1, 0); }
+        void operator delete(void* /* ptr */) {}
+    };
+
+    /**
+     * Simpler base class for classes that have no need to specialize allocation behavior.
+     */
+    class gc_base {
+    public:
+        void* operator new(size_t n) { return GC_malloc(n); }
+        void operator delete(void*) {}
+    };
+}
+
+#endif /* gc_allocator_h */

mozilla/js/js2/gc_container.h

@@ -0,0 +1,71 @@
+// -*- Mode: C++; tab-width: 4; indent-tabs-mode: t; 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 the JavaScript 2 Prototype.
+//
+// The Initial Developer of the Original Code is Netscape
+// Communications Corporation.  Portions created by Netscape are
+// Copyright (C) 2000 Netscape Communications Corporation. All
+// Rights Reserved.
+
+#ifndef gc_container_h
+#define gc_container_h
+
+#include "gc_allocator.h"
+
+#include <list>
+#include <vector>
+#include <string>
+
+#define LIST std::list
+#define VECTOR std::vector
+
+#if defined(__GNUC__)
+// grr, what kind of standard is this?
+#define STRING basic_string
+#define CHAR_TRAITS string_char_traits
+#else
+#define STRING std::basic_string
+#define CHAR_TRAITS std::char_traits
+#endif
+
+namespace JavaScript {
+	/**
+	 * Rebind some of the basic container types to use a GC_allocator.
+	 * What I really want is something more general, something like:
+	 * template <typename Container, typename T> class gc_rebind {
+	 *   typedef typename Container<T, gc_allocator<T> > other;
+	 * };
+	 * But I can't figure out how to do that with C++ templates.
+	 */
+	template <class T> struct gc_container {
+		typedef typename LIST<T, gc_allocator<T> > list;
+		typedef typename VECTOR<T, gc_allocator<T> > vector;
+		typedef typename STRING<T, CHAR_TRAITS<T>, gc_allocator<T> > string;
+	};
+
+	/**
+	 * But, it's pretty easy to do with macros:
+	 */
+	#define GC_CONTAINER(container, type) container<T, gc_allocator<T> >
+	
+	/*
+	// this gives an "unimplemented C++ feature" error using CWPro5.
+	// maybe someday.
+	template <template<class, class> typename Container, typename T>
+	struct gc_rebind {
+		typedef typename Container<T, gc_allocator<T> > container;
+	};
+	*/
+}
+
+#endif /* gc_container_h */

mozilla/js/js2/hash.cpp

@@ -0,0 +1,173 @@
+// -*- Mode: C++; tab-width: 4; 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 the JavaScript 2 Prototype.
+//
+// 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.
+
+#include "hash.h"
+#include <new>
+namespace JS = JavaScript;
+
+
+//
+// Hash Codes
+//
+
+
+// General-purpose null-terminated C string hash function
+JS::HashNumber JS::hashString(const char *s)
+{
+    HashNumber h = 0;
+    uchar ch;
+
+    while ((ch = (uchar)*s++) != 0)
+        h = (h >> 28) ^ (h << 4) ^ ch;
+    return h;
+}
+
+
+// General-purpose String hash function
+JS::HashNumber JS::hashString(const String &s)
+{
+    HashNumber h = 0;
+    String::const_iterator p = s.begin();
+    String::size_type n = s.size();
+
+    if (n < 16)
+		// Hash every character in a short string.
+		while (n--)
+		    h = (h >> 28) ^ (h << 4) ^ *p++;
+    else
+		// Sample a la java.lang.String.hash().
+		for (String::size_type m = n / 8; n >= m; p += m, n -= m)
+		    h = (h >> 28) ^ (h << 4) ^ *p;
+    return h;
+}
+
+
+//
+// Hash Tables
+//
+
+
+const uint minLgNBuckets = 4;
+
+
+JS::GenericHashTableIterator::GenericHashTableIterator(GenericHashTable &ht):
+		ht(ht), entry(0), nextBucket(ht.buckets)
+{
+	DEBUG_ONLY(++ht.nReferences);
+	operator++();
+}
+
+
+
+JS::GenericHashTableIterator &
+JS::GenericHashTableIterator::operator++()
+{
+	GenericHashEntry *e = entry;
+
+	if (e) {
+		backpointer = &e->next;
+		e = e->next;
+	}
+	if (!e) {
+		GenericHashEntry **const bucketsEnd = ht.bucketsEnd;
+		GenericHashEntry **bucket = nextBucket;
+
+		while (bucket != bucketsEnd) {
+			e = *bucket++;
+			if (e) {
+				backpointer = bucket-1;
+				break;
+			}
+		}
+		nextBucket = bucket;
+	}
+	entry = e;
+	return *this;
+}
+
+
+JS::GenericHashTable::GenericHashTable(uint32 nEntriesDefault):
+	nEntries(0)
+{
+	DEBUG_ONLY(nReferences = 0);
+
+	uint lgNBuckets = ceilingLog2(nEntriesDefault);
+	if (lgNBuckets < minLgNBuckets)
+		lgNBuckets = minLgNBuckets;
+	defaultLgNBuckets = lgNBuckets;
+
+	recomputeMinMaxNEntries(lgNBuckets);
+	uint32 nBuckets = JS_BIT(lgNBuckets);
+	buckets = new GenericHashEntry*[nBuckets];
+	// No exceptions after this point unless buckets is deleted.
+
+	bucketsEnd = buckets + nBuckets;
+	zero(buckets, bucketsEnd);
+}
+
+
+// Initialize shift, minNEntries, and maxNEntries based on the lg2 of the
+// number of buckets.
+void JS::GenericHashTable::recomputeMinMaxNEntries(uint lgNBuckets)
+{
+	uint32 nBuckets = JS_BIT(lgNBuckets);
+	shift = 32 - lgNBuckets;
+	maxNEntries = nBuckets;							// Maximum ratio is 100%
+	minNEntries = lgNBuckets <= defaultLgNBuckets ? 0 : 3*(nBuckets>>3);	// Minimum ratio is 37.5%
+}
+
+
+// Rehash the table.  This method cannot throw out-of-memory exceptions, so it is
+// safe to call from a destructor.
+void JS::GenericHashTable::rehash()
+{
+	uint32 newLgNBuckets = ceilingLog2(nEntries);
+	if (newLgNBuckets < defaultLgNBuckets)
+		newLgNBuckets = defaultLgNBuckets;
+	uint32 newNBuckets = JS_BIT(newLgNBuckets);
+	try {
+		GenericHashEntry **newBuckets = new GenericHashEntry*[newNBuckets];
+		// No exceptions after this point.
+
+		GenericHashEntry **newBucketsEnd = newBuckets + newNBuckets;
+		zero(newBuckets, newBucketsEnd);
+		recomputeMinMaxNEntries(newLgNBuckets);
+		GenericHashEntry **be = bucketsEnd;
+		for (GenericHashEntry **b = buckets; b != be; b++) {
+			GenericHashEntry *e = *b;
+			while (e) {
+				GenericHashEntry *next = e->next;
+				// Place e in the new set of buckets.
+				GenericHashEntry **nb = newBuckets + (e->keyHash*goldenRatio >> shift);
+				e->next = *nb;
+				*nb = e;
+				e = next;
+			}
+		}
+		delete[] buckets;
+		buckets = newBuckets;
+		bucketsEnd = newBucketsEnd;
+	} catch (std::bad_alloc) {
+		// Out of memory.  Ignore the error and just relax the resizing boundaries.
+		if (buckets + JS_BIT(newLgNBuckets) > bucketsEnd)
+			maxNEntries >>= 1;
+		else
+			minNEntries <<= 1;
+	}
+}

mozilla/js/js2/hash.h

@@ -0,0 +1,373 @@
+// -*- Mode: C++; tab-width: 4; 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 the JavaScript 2 Prototype.
+//
+// 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.
+
+#ifndef hash_h
+#define hash_h
+
+#include "utilities.h"
+
+namespace JavaScript {
+
+
+//
+// Hash Codes
+//
+
+	typedef uint32 HashNumber;
+
+	HashNumber hashString(const char *s);
+	HashNumber hashString(const String &s);
+
+
+	template<class Key>
+	struct Hash {
+		HashNumber operator()(Key key) const;
+	};
+
+	template<class Key>
+	inline HashNumber Hash<Key>::operator()(Key key) const
+	{
+		return hashString(key);
+	}
+
+
+	const HashNumber goldenRatio = 0x9E3779B9U;
+
+
+//
+// Private
+//
+
+	// Base class for user-defined hash entries.
+	// private
+	class GenericHashEntry {
+	  public:
+	    GenericHashEntry *next;         // Link to next entry in the same bucket
+	    const HashNumber keyHash;       // This entry's hash value
+
+	  protected:
+		explicit GenericHashEntry(HashNumber keyHash): next(0), keyHash(keyHash) {}
+
+	    friend class GenericHashTable;
+	};
+
+
+	// private
+	class GenericHashTableIterator;
+	class GenericHashTable {
+	  protected:
+	    GenericHashEntry **buckets;		// Vector of hash buckets
+	    GenericHashEntry **bucketsEnd;	// Pointer past end of vector of hash buckets
+	    uint defaultLgNBuckets;			// lg2 of minimum number of buckets for which to size the table
+	    uint32 nEntries;				// Number of entries in table
+	    uint32 minNEntries;				// Minimum number of entries without rehashing
+	    uint32 maxNEntries;				// Maximum number of entries without rehashing
+	    uint32 shift;					// 32 - lg2(number of buckets)
+	  #ifdef DEBUG
+	  public:
+	    uint32 nReferences;				// Number of iterators and references currently pointing to this hash table
+	  #endif
+
+	  public:
+		explicit GenericHashTable(uint32 nEntriesDefault);
+		~GenericHashTable() {
+		  #ifndef _WIN32
+			ASSERT(nReferences == 0);
+		  #endif
+			delete[] buckets;
+		}
+
+		void recomputeMinMaxNEntries(uint lgNBuckets);
+		void rehash();
+		void maybeGrow() {if (nEntries > maxNEntries) rehash();}
+		void maybeShrink() {if (nEntries < minNEntries) rehash();}
+		
+		friend class GenericHashTableIterator;
+
+		typedef GenericHashTableIterator Iterator;
+	};
+
+	// This ought to be GenericHashTable::Iterator, but this doesn't work due to a
+	// Microsoft VC6 bug.
+	class GenericHashTableIterator {
+	  protected:
+		GenericHashTable &ht;			// Hash table being iterated
+		GenericHashEntry *entry;		// Current entry; nil if done
+		GenericHashEntry **backpointer;	// Pointer to pointer to current entry
+		GenericHashEntry **nextBucket;	// Next bucket; pointer past end of vector of hash buckets if done
+	  public:
+		explicit GenericHashTableIterator(GenericHashTable &ht);
+		~GenericHashTableIterator() {ht.maybeShrink(); DEBUG_ONLY(--ht.nReferences);}
+
+		operator bool() const {return entry != 0;}	// Return true if there are entries left.
+		GenericHashTableIterator &operator++();
+	};
+
+
+//
+// Hash Tables
+//
+
+	template<class Data, class Key, class H = Hash<Key> >
+	class HashTable: private GenericHashTable {
+		H hasher;						// Hash function
+
+		struct Entry: public GenericHashEntry {
+			Data data;
+			
+			Entry(HashNumber keyHash, Key key): GenericHashEntry(keyHash), data(key) {}
+			template<class Value>
+			Entry(HashNumber keyHash, Key key, Value value): GenericHashEntry(keyHash), data(key, value) {}
+		};
+
+	  public:
+		class Reference {
+#ifdef _WIN32 // Microsoft VC6 bug: friend declarations to inner classes don't work
+		  public:
+#endif
+			Entry *entry;						// Current entry; nil if done
+			GenericHashEntry **backpointer;		// Pointer to pointer to current entry
+			const HashNumber keyHash;			// This entry's key's hash value
+		  #ifdef DEBUG
+			GenericHashTable *ht;				// Hash table to which this Reference points
+		  #endif
+
+		  public:
+#ifndef _WIN32
+			Reference(HashTable &ht, Key key);	// Search for an entry with the given key.
+#else // Microsoft VC6 bug: VC6 doesn't allow this to be defined outside the class
+			Reference(HashTable &ht, Key key): keyHash(ht.hasher(key)) {
+			#ifdef DEBUG
+				Reference::ht = &ht;
+				++ht.nReferences;
+			#endif
+				HashNumber kh = keyHash;
+				HashNumber h = kh*goldenRatio >> ht.shift;
+				GenericHashEntry **bp = ht.buckets + h;
+				Entry *e;
+
+				while ((e = static_cast<Entry *>(*bp)) != 0 && !(e->keyHash == kh && e->data == key))
+					bp = &e->next;
+				entry = e;
+				backpointer = bp;
+			}
+#endif
+		  private:
+		    Reference(const Reference&);		// No copy constructor
+		    void operator=(const Reference&);	// No assignment operator
+		  public:
+		  #if defined(DEBUG) && !defined(_WIN32)
+			~Reference() {if (ht) --ht->nReferences;}
+		  #endif
+			
+			operator bool() const {return entry != 0;}	// Return true if an entry was found.
+			Data &operator*() const {ASSERT(entry); return entry->data;}	// Return the data of the entry that was found.
+			
+			friend class HashTable;
+		};
+
+		class Iterator: public GenericHashTableIterator {
+		  public:
+			explicit Iterator(HashTable &ht): GenericHashTableIterator(ht) {}
+		  private:
+		    Iterator(const Iterator&);			// No copy constructor
+		    void operator=(const Iterator&);	// No assignment operator
+		  public:
+
+			// Go to next entry.
+			Iterator &operator++() {return *static_cast<Iterator*>(&GenericHashTableIterator::operator++());}
+			Data &operator*() const {ASSERT(entry); return static_cast<Entry *>(entry)->data;}	// Return current entry's data.
+			void erase();
+		};
+
+		HashTable(uint32 nEntriesDefault = 0, const H &hasher = H()): GenericHashTable(nEntriesDefault), hasher(hasher) {}
+		~HashTable();
+
+		template<class Value> Data &insert(Reference &r, Key key, Value value);
+		Data &insert(Reference &r, Key key);
+		Data &insert(Key key);
+		void erase(Reference &r);
+		void erase(Key key);
+		Data *operator[](Key key);
+		
+		friend class Reference;
+		friend class Iterator;
+
+#ifndef _WIN32
+		template<class Value> Data &insert(Key key, Value value);
+#else // Microsoft VC6 bug: VC6 doesn't allow this to be defined outside the class
+		template<class Value> Data &insert(Key key, Value value) {
+			Reference r(*this, key);
+			if (r)
+				return *r = value;
+			else
+				return insert(r, key, value);
+		}
+#endif
+	};
+
+
+//
+// Implementation
+//
+
+	template<class Data, class Key, class H>
+	HashTable<Data, Key, H>::~HashTable()
+	{
+		GenericHashEntry **be = bucketsEnd;
+		for (GenericHashEntry **b = buckets; b != be; b++) {
+			Entry *e = static_cast<Entry *>(*b);
+			while (e) {
+				Entry *next = static_cast<Entry *>(e->next);
+				delete e;
+				e = next;
+			}
+		}
+	}
+
+
+#ifndef _WIN32
+	template<class Data, class Key, class H>
+	HashTable<Data, Key, H>::Reference::Reference(HashTable &ht, Key key):
+		keyHash(ht.hasher(key))
+	{
+	#ifdef DEBUG
+		Reference::ht = &ht;
+		++ht.nReferences;
+	#endif
+		HashNumber kh = keyHash;
+		HashNumber h = kh*goldenRatio >> ht.shift;
+		GenericHashEntry **bp = ht.buckets + h;
+		Entry *e;
+
+		while ((e = static_cast<Entry *>(*bp)) != 0 && !(e->keyHash == kh && e->data == key))
+			bp = &e->next;
+		entry = e;
+		backpointer = bp;
+	}
+
+
+	// Insert the given key/value pair into the hash table.  Reference must
+	// be the result of an unsuccessful search for that key in the table.
+	// The reference is not valid after this method is called.
+	// Return a reference to the new entry's value.
+	template<class Data, class Key, class H> template<class Value>
+	inline Data &HashTable<Data, Key, H>::insert(Reference &r, Key key, Value value)
+	{
+		ASSERT(r.ht == this && !r.entry);
+		Entry *e = new Entry(r.keyHash, key, value);
+		*r.backpointer = e;
+		++nEntries;
+		maybeGrow();
+	#ifdef DEBUG
+		--r.ht->nReferences;
+		r.ht = 0;
+	#endif
+		return e->data;
+	}
+#endif
+
+	// Same as above but without a Value argument.
+	template<class Data, class Key, class H>
+	inline Data &HashTable<Data, Key, H>::insert(Reference &r, Key key)
+	{
+		ASSERT(r.ht == this && !r.entry);
+		Entry *e = new Entry(r.keyHash, key);
+		*r.backpointer = e;
+		++nEntries;
+		maybeGrow();
+	#ifdef DEBUG
+		--r.ht->nReferences;
+		r.ht = 0;
+	#endif
+		return e->data;
+	}
+
+
+
+	// Insert the given key/value pair into the hash table.  If an entry with a
+	// matching key already exists, replace that entry's value.
+	// Return a reference to the new entry's value.
+#ifndef _WIN32 // Microsoft VC6 bug: VC6 doesn't allow this to be defined outside the class
+	template<class Data, class Key, class H> template<class Value>
+	Data &HashTable<Data, Key, H>::insert(Key key, Value value)
+	{
+		Reference r(*this, key);
+		if (r)
+			return *r = value;
+		else
+			return insert(r, key, value);
+	}
+#endif
+
+	// Same as above but without a Value argument.
+	template<class Data, class Key, class H>
+	Data &HashTable<Data, Key, H>::insert(Key key)
+	{
+		Reference r(*this, key);
+		if (r)
+			return *r;
+		else
+			return insert(r, key);
+	}
+
+
+	// Reference r must point to an existing entry.  Delete that entry.
+	// The reference is not valid after this method is called.
+	template<class Data, class Key, class H>
+	inline void HashTable<Data, Key, H>::erase(Reference &r)
+	{
+		Entry *e = r.entry;
+		ASSERT(r.ht == this && e);
+		*r.backpointer = e->next;
+		--nEntries;
+		delete e;
+	#ifdef DEBUG
+		--r.ht->nReferences;
+		r.ht = 0;
+	#endif
+		maybeShrink();
+	}
+
+
+	// Remove the hash table entry, if any, matching the given key.
+	template<class Data, class Key, class H>
+	void HashTable<Data, Key, H>::erase(Key key)
+	{
+		Reference r(*this, key);
+		if (r)
+			erase(r);
+	}
+
+
+	// Return a pointer to the value of the hash table entry matching the given key.
+	// Return nil if no entry matches.
+	template<class Data, class Key, class H>
+	Data *HashTable<Data, Key, H>::operator[](Key key)
+	{
+		Reference r(*this, key);
+		if (r)
+			return &*r;
+		else
+			return 0;
+	}
+
+}
+
+#endif

mozilla/js/js2/icodegenerator.h

@@ -0,0 +1,306 @@
+/* -*- Mode: C++; tab-width: 4; 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 the JavaScript 2 Prototype.
+ *
+ * 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 icodegenerator_h
+#define icodegenerator_h
+
+#include <vector>
+#include <stack>
+
+#include "utilities.h"
+#include "parser.h"
+#include "vmtypes.h"
+#include "jsclasses.h"
+
+
+namespace JavaScript {
+namespace ICG {
+    
+    using namespace VM;
+    using namespace JSTypes;
+    using namespace JSClasses;
+    
+    typedef std::map<String, TypedRegister, std::less<String> > VariableList;
+    typedef std::map<uint32, uint32, std::less<uint32> > InstructionMap;
+   
+
+    class ICodeModule {
+    public:
+        ICodeModule(InstructionStream *iCode, VariableList *variables,
+                    uint32 maxRegister, uint32 maxParameter,
+                    InstructionMap *instructionMap) :
+            its_iCode(iCode), itsVariables(variables),
+            itsParameterCount(maxParameter), itsMaxRegister(maxRegister),
+            mID(++sMaxID), mInstructionMap(instructionMap) { }
+        ~ICodeModule()
+        {
+            delete its_iCode;
+            delete itsVariables;
+            delete mInstructionMap;
+        }
+
+        Formatter& print(Formatter& f);
+        void setFileName (String aFileName) { mFileName = aFileName; }
+        String getFileName () { return mFileName; }
+        
+        InstructionStream *its_iCode;
+        VariableList *itsVariables;
+        uint32 itsParameterCount;
+        uint32 itsMaxRegister;
+        uint32 mID;
+        InstructionMap *mInstructionMap;
+        String mFileName;
+
+        static uint32 sMaxID;
+        
+    };
+
+    typedef std::vector<const StringAtom *> LabelSet;
+    class LabelEntry {
+    public:
+        LabelEntry(LabelSet *labelSet, Label *breakLabel) 
+            : labelSet(labelSet), breakLabel(breakLabel), continueLabel(NULL) { }
+        LabelEntry(LabelSet *labelSet, Label *breakLabel, Label *continueLabel) 
+            : labelSet(labelSet), breakLabel(breakLabel), continueLabel(continueLabel) { }
+
+        bool containsLabel(const StringAtom *label);
+
+        LabelSet *labelSet;
+        Label *breakLabel;
+        Label *continueLabel;
+    };
+    typedef std::vector<LabelEntry *> LabelStack;
+
+    Formatter& operator<<(Formatter &f, ICodeModule &i);
+
+    /****************************************************************/
+    
+    // An ICodeGenerator provides the interface between the parser and the
+    // interpreter. The parser constructs one of these for each
+    // function/script, adds statements and expressions to it and then
+    // converts it into an ICodeModule, ready for execution.
+    
+    class ICodeGenerator {
+    public:
+        typedef enum { kNoFlags = 0, kIsTopLevel = 0x01, kIsStaticMethod = 0x02, kIsWithinWith = 0x04 } ICodeGeneratorFlags;
+    private:
+        InstructionStream *iCode;
+        bool iCodeOwner;
+        LabelList labels;
+        
+        Register mTopRegister;              // highest (currently) alloacated register
+        uint32   mParameterCount;           // number of parameters declared for the function
+                                            // these must come before any variables declared.
+        TypedRegister mExceptionRegister;   // reserved to carry the exception object.
+        VariableList *variableList;         // name|register pair for each variable
+
+        World *mWorld;                      // used to register strings
+        JSScope *mGlobal;                   // the scope for compiling within
+        LabelStack mLabelStack;             // stack of LabelEntry objects, one per nested looping construct
+                                            // maps source position to instruction index
+        InstructionMap *mInstructionMap;
+
+        JSClass *mClass;                    // enclosing class when generating code for methods
+        ICodeGeneratorFlags mFlags;         // assorted flags
+
+        std::vector<bool> mPermanentRegister;
+
+        Register getTempRegister() 
+        { 
+            while (mTopRegister < mPermanentRegister.size())
+                if (!mPermanentRegister[mTopRegister]) 
+                    return mTopRegister++;
+                else
+                    ++mTopRegister;
+            mPermanentRegister.resize(mTopRegister + 1);
+            mPermanentRegister[mTopRegister] = false;
+            return mTopRegister++;
+        }
+
+        void resetTopRegister() { mTopRegister = mParameterCount; }
+        void resetStatement()   { resetTopRegister(); }
+
+        TypedRegister allocateRegister(const StringAtom& name, JSType *type);
+
+        void setRegisterForVariable(const StringAtom& name, TypedRegister r) { (*variableList)[name] = r; }
+
+        JSType *findType(const StringAtom& typeName);
+
+
+
+
+
+
+        void setLabel(Label *label);
+        
+        void jsr(Label *label)                  { iCode->push_back(new Jsr(label)); }
+        void rts()                              { iCode->push_back(new Rts()); }
+        void branch(Label *label);
+        GenericBranch *branchTrue(Label *label, TypedRegister condition);
+        GenericBranch *branchFalse(Label *label, TypedRegister condition);
+        
+        void beginTry(Label *catchLabel, Label *finallyLabel)
+                                                { iCode->push_back(new Tryin(catchLabel, finallyLabel)); }
+        void endTry()                           { iCode->push_back(new Tryout()); }
+
+        void beginWith(TypedRegister obj)       { iCode->push_back(new Within(obj)); }
+        void endWith()                          { iCode->push_back(new Without()); }
+        
+
+
+        void startStatement(uint32 pos)         { (*mInstructionMap)[iCode->size()] = pos; }
+
+        ICodeOp mapExprNodeToICodeOp(ExprNode::Kind kind);
+
+
+        bool isTopLevel()       { return (mFlags & kIsTopLevel) != 0; }
+        bool isWithinWith()     { return (mFlags & kIsWithinWith) != 0; }
+        bool isStaticMethod()   { return (mFlags & kIsStaticMethod) != 0; }
+
+        void setFlag(uint32 flag, bool v) { mFlags = (ICodeGeneratorFlags)((v) ? mFlags | flag : mFlags & ~flag); }
+
+
+        typedef enum {Var, Property, Slot, Static, Constructor, Name, Method} LValueKind;
+
+        LValueKind resolveIdentifier(const StringAtom &name, TypedRegister &v, uint32 &slotIndex);
+        TypedRegister handleIdentifier(IdentifierExprNode *p, ExprNode::Kind use, ICodeOp xcrementOp, TypedRegister ret, RegisterList *args);
+        TypedRegister handleDot(BinaryExprNode *b, ExprNode::Kind use, ICodeOp xcrementOp, TypedRegister ret, RegisterList *args);
+        ICodeModule *genFunction(FunctionStmtNode *f, bool isConstructor, JSClass *superClass);
+    
+    public:
+
+        ICodeGenerator(World *world, JSScope *global, JSClass *aClass = NULL, ICodeGeneratorFlags flags = kIsTopLevel);
+        
+        ~ICodeGenerator()
+        {
+            if (iCodeOwner) {
+                delete iCode;
+                delete mInstructionMap;
+            }
+        }
+                
+        ICodeModule *complete();
+
+        TypedRegister genExpr(ExprNode *p, 
+                                bool needBoolValueInBranch = false, 
+                                Label *trueBranch = NULL, 
+                                Label *falseBranch = NULL);
+        TypedRegister genStmt(StmtNode *p, LabelSet *currentLabelSet = NULL);
+
+        void returnStmt(TypedRegister r);
+        void returnStmt();
+        void throwStmt(TypedRegister r)         { iCode->push_back(new Throw(r)); }
+        void debuggerStmt()                     { iCode->push_back(new Debugger()); }
+
+        TypedRegister allocateVariable(const StringAtom& name);
+        TypedRegister allocateVariable(const StringAtom& name, const StringAtom& typeName);
+
+        TypedRegister findVariable(const StringAtom& name)
+        {
+            VariableList::iterator i = variableList->find(name);
+            return (i == variableList->end()) ? TypedRegister(NotARegister, &None_Type) : (*i).second;
+        }
+        
+        TypedRegister allocateParameter(const StringAtom& name)         { mParameterCount++; return allocateRegister(name, &Any_Type); }
+        TypedRegister allocateParameter(const StringAtom& name, const StringAtom& typeName) 
+                                                                        { mParameterCount++; return allocateRegister(name, findType(typeName)); }
+        TypedRegister allocateParameter(const StringAtom& name, JSType *type) 
+                                                                        { mParameterCount++; return allocateRegister(name, type); }
+        
+        Formatter& print(Formatter& f);
+        
+        TypedRegister op(ICodeOp op, TypedRegister source);
+        TypedRegister op(ICodeOp op, TypedRegister source1, TypedRegister source2);
+        TypedRegister binaryOp(ICodeOp op, TypedRegister source1, TypedRegister source2);
+        TypedRegister call(TypedRegister base, TypedRegister target, RegisterList *args);
+        TypedRegister getMethod(TypedRegister thisArg, uint32 slotIndex);
+
+        void move(TypedRegister destination, TypedRegister source);
+        TypedRegister logicalNot(TypedRegister source);
+        TypedRegister test(TypedRegister source);
+        
+        TypedRegister loadBoolean(bool value);
+        TypedRegister loadImmediate(double value);
+        TypedRegister loadString(const String &value);
+        TypedRegister loadString(const StringAtom &name);
+                
+        TypedRegister newObject(TypedRegister constructor);
+        TypedRegister newArray();
+        TypedRegister newFunction(ICodeModule *icm);
+        TypedRegister newClass(JSClass *clazz);
+
+        TypedRegister cast(TypedRegister arg, JSType *toType);
+        
+        TypedRegister super();
+        TypedRegister loadName(const StringAtom &name, JSType *t = &Any_Type);
+        void saveName(const StringAtom &name, TypedRegister value);
+        TypedRegister nameXcr(const StringAtom &name, ICodeOp op);
+       
+        TypedRegister deleteProperty(TypedRegister base, const StringAtom &name);
+        TypedRegister getProperty(TypedRegister base, const StringAtom &name);
+        void setProperty(TypedRegister base, const StringAtom &name, TypedRegister value);
+        TypedRegister propertyXcr(TypedRegister base, const StringAtom &name, ICodeOp op);
+        
+        TypedRegister getStatic(JSClass *base, const String &name);
+        void setStatic(JSClass *base, const StringAtom &name, TypedRegister value);
+        TypedRegister staticXcr(JSClass *base, const StringAtom &name, ICodeOp op);
+        
+        TypedRegister getElement(TypedRegister base, TypedRegister index);
+        void setElement(TypedRegister base, TypedRegister index, TypedRegister value);
+        TypedRegister elementXcr(TypedRegister base, TypedRegister index, ICodeOp op);
+
+        TypedRegister getSlot(TypedRegister base, uint32 slot);
+        void setSlot(TypedRegister base, uint32 slot, TypedRegister value);
+        TypedRegister slotXcr(TypedRegister base, uint32 slot, ICodeOp op);
+
+        TypedRegister varXcr(TypedRegister var, ICodeOp op);
+        
+        InstructionStream *getICode()   { return iCode; }
+        
+        Label *getLabel();
+
+    };
+
+    Formatter& operator<<(Formatter &f, ICodeGenerator &i);
+    Formatter& operator<<(Formatter &f, ICodeModule &i);
+    /*
+      std::ostream &operator<<(std::ostream &s, ICodeGenerator &i);
+      std::ostream &operator<<(std::ostream &s, StringAtom &str);
+    */
+
+
+
+} /* namespace IGC */
+} /* namespace JavaScript */
+
+#endif /* icodegenerator_h */

mozilla/js/js2/interpreter.h

@@ -0,0 +1,113 @@
+// -*- Mode: C++; tab-width: 4; 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 the JavaScript 2 Prototype.
+//
+// The Initial Developer of the Original Code is Netscape
+// Communications Corporation.  Portions created by Netscape are
+// Copyright (C) 2000 Netscape Communications Corporation. All
+// Rights Reserved.
+
+#ifndef interpreter_h
+#define interpreter_h
+
+#include "utilities.h"
+#include "jstypes.h"
+#include "vmtypes.h"
+#include "icodegenerator.h"
+#include "gc_allocator.h"
+
+namespace JavaScript {
+namespace Interpreter {
+
+    using namespace ICG;
+    using namespace JSTypes;
+
+    struct Activation;
+    
+    struct Linkage;
+
+    class Context : public gc_base {
+        void initContext();
+    public:
+        explicit Context(World& world, JSScope* aGlobal)
+            : mWorld(world), mGlobal(aGlobal), mLinkage(0), mActivation(0), mHasOperatorsPackageLoaded(false) { initContext(); }
+
+        World& getWorld()           { return mWorld; }
+        JSScope* getGlobalObject()  { return mGlobal; }
+        InstructionIterator getPC() { return mPC; }
+        
+        JSValues& getRegisters();
+        ICodeModule* getICode();
+
+        enum Event {
+            EV_NONE     = 0x0000,
+            EV_STEP     = 0x0001,
+            EV_THROW    = 0x0002,
+            EV_DEBUG    = 0x0004,
+            EV_ALL      = 0xffff
+        };
+    
+        class Listener {
+        public:
+            virtual void listen(Context *context, Event event) = 0;
+        };
+    
+        void addListener(Listener* listener);
+        void removeListener(Listener* listener);
+    
+        class Frame {
+        public:
+            virtual Frame* getNext() = 0;
+            virtual void getState(InstructionIterator& pc, JSValues*& registers,
+                                  ICodeModule*& iCode) = 0;
+        };
+    
+        Frame* getFrames();
+
+        JSValue interpret(ICodeModule* iCode, const JSValues& args);
+        void doCall(JSFunction *target, Instruction *pc);
+
+        ICodeModule* compile(const String &source);
+        ICodeModule* genCode(StmtNode *p, const String &fileName);
+        JSValue readEvalFile(FILE* in, const String& fileName);
+
+        void addBinaryOperator(BinaryOperator::BinaryOp op, BinaryOperator *fn) { mBinaryOperators[op].push_back(fn); }
+        const JSValue findBinaryOverride(JSValue &operand1, JSValue &operand2, BinaryOperator::BinaryOp op);
+
+
+        bool hasOperatorsPackageLoaded()    { return mHasOperatorsPackageLoaded; }
+
+    private:
+        void broadcast(Event event);
+        void initOperatorsPackage();
+
+    private:
+        World& mWorld;
+        JSScope* mGlobal;
+        Linkage* mLinkage;
+        typedef std::vector<Listener*, gc_allocator<Listener*> > ListenerList;
+        typedef ListenerList::iterator ListenerIterator;
+        ListenerList mListeners;
+        Activation* mActivation;
+        bool mHasOperatorsPackageLoaded;
+
+        InstructionIterator mPC;
+        
+        BinaryOperatorList mBinaryOperators[BinaryOperator::BinaryOperatorCount];
+
+    }; /* class Context */
+
+} /* namespace Interpreter */
+} /* namespace JavaScript */
+
+#endif /* interpreter_h */

mozilla/js/js2/java/ArithmeticNode.java

@@ -0,0 +1,33 @@
+class ArithmeticNode extends BinaryNode {
+
+    ArithmeticNode(String aOp, ExpressionNode aLeft, ExpressionNode aRight)
+    {
+        super(aOp, aLeft, aRight);
+    }
+
+    JSValue eval(Environment theEnv)
+    {
+        JSValue lV = left.eval(theEnv);
+        JSValue rV = right.eval(theEnv);
+
+        if (op == "+")
+            return lV.add(theEnv, rV);
+        else
+        if (op == "-")
+            return lV.subtract(theEnv, rV);
+        else
+        if (op == "*")
+            return lV.multiply(theEnv, rV);
+        else
+        if (op == "/")
+            return lV.divide(theEnv, rV);
+        else
+        if (op == "%")
+            return lV.remainder(theEnv, rV);
+        else {
+            System.out.println("missing arithmetic op " + op);
+            return null;
+        }
+    }
+
+}

mozilla/js/js2/java/AssignmentNode.java

@@ -0,0 +1,16 @@
+class AssignmentNode extends BinaryNode {
+    
+    AssignmentNode(String aOp, ExpressionNode aLeft, ExpressionNode aRight)
+    {
+        super(aOp, aLeft, aRight);
+    }
+
+    JSValue eval(Environment theEnv)
+    {
+        JSReference lV = left.evalLHS(theEnv);
+        JSValue rV = right.eval(theEnv);
+        
+        return lV.base.putProp(theEnv, lV.id, rV);
+    }
+
+}

mozilla/js/js2/java/BinaryNode.java

@@ -0,0 +1,72 @@
+class BinaryNode extends ExpressionNode {
+    
+    BinaryNode(String aOp, ExpressionNode aLeft, ExpressionNode aRight)
+    {
+        left = aLeft;
+        right = aRight;
+        op = aOp;
+    }
+
+    JSReference evalLHS(Environment theEnv)
+    {
+        if (op == ".") {
+            JSValue lV = left.eval(theEnv);
+            JSString id;
+            if (right instanceof JSIdentifier)
+                id = (JSString)right;
+            else
+                id = right.eval(theEnv).toJSString(theEnv);
+            return new JSReference(lV, id);
+        }
+        else
+            throw new RuntimeException("bad lValue operator " + op);
+    }
+    
+    JSValue eval(Environment theEnv)
+    {
+        JSValue lV = left.eval(theEnv);
+        JSValue rV = right.eval(theEnv);
+        
+        if (op == ".")
+            return lV.getProp(theEnv, rV.toJSString(theEnv));
+        else
+        if (op == "()")
+            return lV.call(theEnv, rV);
+        else
+        if (op == ",")
+            return JSValueList.buildList(lV, rV);
+        else {
+            System.out.println("missing binary op " + op);
+            return null;
+        }
+        
+    }
+    
+    String print(String indent)
+    {
+        StringBuffer result = new StringBuffer(indent);
+        result.append(getClass().toString());
+        result.append(" ");
+        result.append(op);
+        result.append("\n");
+        indent += "    ";
+        if (left == null) {
+            result.append(indent);
+            result.append("null\n");
+        }
+        else
+            result.append(left.print(indent));
+        if (right == null) {
+            result.append(indent);
+            result.append("null\n");
+        }
+        else
+            result.append(right.print(indent));
+        return result.toString();
+    }   
+    
+    protected ExpressionNode left;
+    protected ExpressionNode right;
+    protected String op;
+    
+}

mozilla/js/js2/java/BitwiseNode.java

@@ -0,0 +1,36 @@
+class BitwiseNode extends BinaryNode {
+
+    BitwiseNode(String aOp, ExpressionNode aLeft, ExpressionNode aRight)
+    {
+        super(aOp, aLeft, aRight);
+    }
+
+    JSValue eval(Environment theEnv)
+    {
+        JSInteger lV = left.eval(theEnv).toJSInteger(theEnv);
+        JSValue rV = right.eval(theEnv);
+
+        if (op == "&")
+            return lV.and(theEnv, rV);
+        else
+        if (op == "|")
+            return lV.or(theEnv, rV);
+        else
+        if (op == "^")
+            return lV.xor(theEnv, rV);
+        else
+        if (op == "<<")
+            return lV.shr(theEnv, rV);
+        else
+        if (op == ">>")
+            return lV.shl(theEnv, rV);
+        else
+        if (op == ">>>")
+            return lV.ushl(theEnv, rV);
+        else {
+            System.out.println("missing bitwise op " + op);
+            return null;
+        }
+    }
+
+}

mozilla/js/js2/java/Brenda.java

@@ -0,0 +1,24 @@
+import java.io.*;
+
+class Brenda {
+    
+	public static void main(String[] args) {
+		try {
+			JSLexer lexer = new JSLexer((args != null) ? new DataInputStream(new FileInputStream(args[0])) : new DataInputStream(System.in));
+			JSParser parser = new JSParser(lexer);
+			ControlNodeGroup tree = new ControlNodeGroup();
+			parser.statements(0, tree);
+			System.out.println(ControlNode.printAll());
+			
+            Environment theEnv = new Environment();
+			ControlNode c = tree.getHead();
+			while (c != null) c = c.eval(theEnv);
+			
+			System.out.println("After eval :\n" + theEnv.print());
+			
+		} catch(Exception e) {
+			System.err.println("exception: "+e);
+		}
+	}
+    
+}

mozilla/js/js2/java/ConditionalNode.java

@@ -0,0 +1,59 @@
+class ConditionalNode extends ControlNode {
+    
+    ConditionalNode(ExpressionNode aCondition)
+    {
+        super(aCondition);
+    }
+    
+    ConditionalNode(ExpressionNode aCondition, ControlNode aTrueCode)
+    {
+        super(aCondition);
+        trueCode = aTrueCode;
+    }
+    
+    ConditionalNode(ExpressionNode aCondition, ControlNode aTrueCode, ControlNode aFalseCode)
+    {
+        super(aCondition);
+        trueCode = aTrueCode;
+        setNext(aFalseCode);
+    }
+    
+    void moveNextToTrue()
+    {
+        trueCode = next;
+        setNext(null);
+    }
+    
+    ControlNode eval(Environment theEnv)
+    {
+        JSBoolean b = expr.eval(theEnv).toJSBoolean(theEnv);
+        if (b.isTrue())
+            return trueCode;
+        else
+            return next;
+    }
+
+    String print()
+    {
+        StringBuffer result = new StringBuffer("ConditionalNode ");
+        result.append(index);
+        result.append("\nexpr:\n");
+        if (expr == null)
+            result.append("expr = null\n");
+        else
+            result.append(expr.print(""));
+        result.append("true branch:\n");
+        if (trueCode == null)
+            result.append("true branch = null\n");
+        else
+            result.append("true branch->" + trueCode.index + "\n");
+        result.append("false branch:\n");
+        if (next == null)
+            result.append("false branch = null\n");
+        else
+            result.append("false branch->" + next.index + "\n");
+        return result.toString();
+    }
+ 
+    protected ControlNode trueCode;
+}

mozilla/js/js2/java/ControlNode.java

@@ -0,0 +1,67 @@
+
+import java.util.Vector;
+
+class ControlNode {
+
+    private static Vector gList = new Vector();
+    
+    static String printAll()
+    {
+        StringBuffer result = new StringBuffer();
+        for (int i = 0; i < gList.size(); i++) {
+            result.append(((ControlNode)(gList.elementAt(i))).print());
+        }
+        return result.toString();
+    }
+
+    ControlNode(ExpressionNode anExpr)
+    {
+        expr = anExpr;
+        index = gList.size();
+        gList.addElement(this);
+    }
+    
+    ExpressionNode getExpression()
+    {
+        return expr;
+    }
+    
+    void setNext(ControlNode aNext)
+    {
+        next = aNext;
+    }
+    
+    ControlNode eval(Environment theEnv)
+    {
+        if (expr != null) theEnv.resultValue = expr.eval(theEnv);
+        return next;
+    }
+    
+    String print()
+    {
+        StringBuffer result = new StringBuffer(getClass().toString().substring(6));
+        result.append(" #");
+        result.append(index);
+        result.append("\nexpr:  \n");
+        if (expr == null)
+            result.append("expr = null\n");
+        else
+            result.append(expr.print(""));
+        result.append("next:  ");
+        if (next == null)
+            result.append("next = null\n");
+        else
+            result.append("next->" + next.index + "\n");
+        return result.toString();
+    }
+
+    protected ExpressionNode expr;
+    protected ControlNode next;   
+    protected int index;
+
+}
+
+
+
+
+

mozilla/js/js2/java/ControlNodeGroup.java

@@ -0,0 +1,153 @@
+
+import java.util.Vector;
+
+class ControlNodeGroup {
+    
+    ControlNodeGroup()
+    {
+    }
+    
+    ControlNodeGroup(ControlNode aHead)
+    {
+        head = aHead;
+    }
+    
+    void add(ControlNodeGroup aGroup)
+    {
+        if (head == null) {
+            head = aGroup.head;
+        }
+        else {
+            fixTails(aGroup.getHead());
+        }
+        addTails(aGroup);
+    }
+    
+    void add(ControlNode aNode)
+    {
+        fixTails(aNode);
+        addTail(aNode);
+        if (head == null) head = aNode;
+    }
+    
+    void addBreak(ControlNode aNode)
+    {
+        fixTails(aNode);
+        addBreakTail(aNode);
+        if (head == null) head = aNode;
+    }
+    
+    void addContinue(ControlNode aNode)
+    {
+        fixTails(aNode);
+        addContinueTail(aNode);
+        if (head == null) head = aNode;
+    }
+    
+    void fixTails(ControlNode butt)
+    {
+        int count = tails.size();
+        for (int i = 0; i < count; i++)
+        {
+            ControlNode aNode = (ControlNode)(tails.elementAt(i));
+            aNode.setNext(butt);
+        }
+        tails.removeAllElements();
+    }
+    
+    void fixContinues(ControlNode butt, String label)
+    {
+        int count = continueTails.size();
+        int i = 0;
+        while (i < count) {
+            ControlNode c = (ControlNode)(continueTails.elementAt(i));            
+            ExpressionNode e = c.getExpression();
+            String tgt = (e == null) ? null : ((JSIdentifier)e).s;
+            if ((tgt == null) || tgt.equals(label)) {
+                c.setNext(butt);
+                continueTails.removeElementAt(i);
+                count--;
+            }
+            else
+                i++;
+        }
+    }
+    
+    void setHead(ControlNode aHead)
+    {
+        head = aHead;
+    }
+    
+    ControlNode getHead()
+    {
+        return head;
+    }
+    
+    void addTail(ControlNode aTail)
+    {
+        tails.addElement(aTail);
+    }
+    
+    void addBreakTail(ControlNode aTail)
+    {
+        breakTails.addElement(aTail);
+    }
+    
+    void addContinueTail(ControlNode aTail)
+    {
+        continueTails.addElement(aTail);
+    }
+    
+    void removeTail(ControlNode aTail)
+    {
+        tails.removeElement(aTail);
+    }
+    
+    void addTails(ControlNodeGroup aGroup)
+    {
+        int count = aGroup.tails.size();
+        for (int i = 0; i < count; i++)
+        {
+            tails.addElement(aGroup.tails.elementAt(i));
+        }
+        aGroup.tails.removeAllElements();
+        
+        count = aGroup.breakTails.size();
+        for (int i = 0; i < count; i++)
+        {
+            breakTails.addElement(aGroup.breakTails.elementAt(i));
+        }
+        aGroup.breakTails.removeAllElements();
+
+        count = aGroup.continueTails.size();
+        for (int i = 0; i < count; i++)
+        {
+            continueTails.addElement(aGroup.continueTails.elementAt(i));
+        }
+        aGroup.continueTails.removeAllElements();
+    }
+    
+    void shiftBreakTails(String label)
+    {
+        int count = breakTails.size();
+        int i = 0;
+        while (i < count) {
+            ControlNode c = (ControlNode)(breakTails.elementAt(i));
+            ExpressionNode e = c.getExpression();
+            String tgt = (e == null) ? null : ((JSIdentifier)e).s;
+            if ((tgt == null) || tgt.equals(label)) {
+                tails.addElement(c);
+                breakTails.removeElementAt(i);
+                count--;
+            }
+            else
+                i++;
+        }        
+    }
+  
+    ControlNode head;
+    Vector tails = new Vector();
+    Vector breakTails = new Vector();
+    Vector continueTails = new Vector();
+
+}

mozilla/js/js2/java/Environment.java

@@ -0,0 +1,30 @@
+
+import java.util.Hashtable;
+
+class Environment {
+
+    JSScope scope = new JSScope("globals");
+    JSScope globalScope = scope;
+    
+
+    void enterNewScope(JSScope newScope)
+    {
+        newScope.parent = scope;
+        scope = newScope;
+    }
+    
+    void leaveScope()
+    {
+        scope = scope.parent;
+    }
+
+    String print()
+    {
+        StringBuffer result = new StringBuffer("Globals contents :\n");
+        result.append(scope.toString());
+        return result.toString();
+    }
+
+    JSValue resultValue;
+
+}

mozilla/js/js2/java/ExpressionNode.java

@@ -0,0 +1,24 @@
+class ExpressionNode {
+
+    ExpressionNode()
+    {
+    }
+    
+    String print(String indent)
+    {
+        return indent + "ExpressionNode(" + getClass().toString() + ")\n";
+    }
+    
+    JSReference evalLHS(Environment theEnv)
+    {
+        System.out.println("Unimplemented evalLHS for " + print(""));
+        return null;
+    }
+    
+    JSValue eval(Environment theEnv)
+    {
+        System.out.println("Unimplemented eval for " + print(""));
+        return null;
+    }
+    
+}

mozilla/js/js2/java/FunctionNode.java

@@ -0,0 +1,36 @@
+class FunctionNode extends ExpressionNode {
+
+    FunctionNode(JSIdentifier aName, ControlNodeGroup aBody, ExpressionNode parameterList)
+    {
+        fn = new NativeFunction(aBody.getHead());
+        name = aName;
+        if (parameterList != null) {
+            if (parameterList instanceof BinaryNode)
+                buildParameterVector((BinaryNode)parameterList);
+            else
+                fn.parameters.addElement(parameterList);
+        }
+    }
+
+    void buildParameterVector(BinaryNode x)
+    {
+        if (x.left instanceof BinaryNode) {
+            buildParameterVector((BinaryNode)(x.left));
+            fn.parameters.addElement(x.right);
+        }
+        else {
+            fn.parameters.addElement(x.left);
+            fn.parameters.addElement(x.right);
+        }
+    }
+
+    JSValue eval(Environment theEnv)
+    {
+        theEnv.scope.putProp(theEnv, name, fn);
+        return fn;
+    }
+
+    JSString name;
+    NativeFunction fn;
+
+}

mozilla/js/js2/java/JSBoolean.java

@@ -0,0 +1,52 @@
+class JSBoolean extends JSValue {
+    
+    static JSBoolean JSTrue = new JSBoolean(true);
+    static JSBoolean JSFalse = new JSBoolean(false);
+
+    private JSBoolean(boolean p)
+    {
+        b = p;
+    }
+    
+    JSValue eval(Environment theEnv)
+    {
+        return this;
+    }
+    
+    boolean isTrue()
+    {
+        return b;
+    }
+            
+    boolean isFalse()
+    {
+        return !b;
+    }
+    
+    JSValue bang(Environment theEnv) {
+         return (b) ? JSFalse : JSTrue;
+    }
+
+    JSValue typeof(Environment theEnv) {
+        return new JSString("boolean");
+    }
+
+    JSBoolean toJSBoolean(Environment theEnv) {
+        return this;
+    }
+    
+    JSValue toPrimitive(Environment theEnv, String hint) {
+        return this;
+    }
+    
+    JSString toJSString(Environment theEnv) {
+        return (b) ? new JSString("true") : new JSString("false");
+    }
+    
+    JSDouble toJSDouble(Environment theEnv) {
+        return (b) ? new JSDouble(1) : new JSDouble(0);
+    }
+            
+    boolean b;
+    
+}

mozilla/js/js2/java/JSDouble.java

@@ -0,0 +1,111 @@
+class JSDouble extends JSNumber {
+ 
+    JSDouble(double p)
+    {
+        d = p;
+    }
+    
+    JSDouble(String s)
+    {
+        d = new Double(s).doubleValue();
+    }
+    
+    String print(String indent)
+    {
+        return indent + "JSDouble " + d + "\n";
+    }
+
+    public String toString()
+    {
+        return Double.toString(d);
+    }
+    
+    JSValue eval(Environment theEnv)
+    {
+        return this;
+    }
+
+    JSValue plus(Environment theEnv) {
+        return this;
+    }
+    
+    JSValue minus(Environment theEnv) {
+        return new JSDouble(-d);
+    }
+    
+    JSValue add(Environment theEnv, JSValue rV) {
+        if (rV instanceof JSString)         
+            return toJSString(theEnv).add(theEnv, rV);
+        else
+            return new JSDouble(d + rV.toJSDouble(theEnv).d);
+    }
+    
+    JSValue subtract(Environment theEnv, JSValue rV) {
+        return new JSDouble(d - rV.toJSDouble(theEnv).d);
+    }
+    
+    JSValue multiply(Environment theEnv, JSValue rV) {
+        return new JSDouble(d * rV.toJSDouble(theEnv).d);
+    }
+
+    JSValue divide(Environment theEnv, JSValue rV) {
+        return new JSDouble(d / rV.toJSDouble(theEnv).d);
+    }
+    
+    JSValue remainder(Environment theEnv, JSValue rV) {
+        return new JSDouble(d % rV.toJSDouble(theEnv).d);
+    }
+    
+    JSValue gt(Environment theEnv, JSValue rV) {
+        return (d > rV.toJSDouble(theEnv).d) ? JSBoolean.JSTrue : JSBoolean.JSFalse;
+    }
+
+    JSValue ge(Environment theEnv, JSValue rV) {
+        return (d >= rV.toJSDouble(theEnv).d) ? JSBoolean.JSTrue : JSBoolean.JSFalse;
+    }
+    
+    JSValue lt(Environment theEnv, JSValue rV) {
+        return (d < rV.toJSDouble(theEnv).d) ? JSBoolean.JSTrue : JSBoolean.JSFalse;
+    }
+    
+    JSValue le(Environment theEnv, JSValue rV) {
+        return (d <= rV.toJSDouble(theEnv).d) ? JSBoolean.JSTrue : JSBoolean.JSFalse;
+    }
+    
+    JSValue eq(Environment theEnv, JSValue rV) {
+        return (d == rV.toJSDouble(theEnv).d) ? JSBoolean.JSTrue : JSBoolean.JSFalse;
+    }
+    
+    JSValue ne(Environment theEnv, JSValue rV) {
+        return (d != rV.toJSDouble(theEnv).d) ? JSBoolean.JSTrue : JSBoolean.JSFalse;
+    }
+    
+    JSDouble toJSDouble(Environment theEnv) {
+        return this;
+    }
+    
+    JSValue toPrimitive(Environment theEnv, String hint) {
+        return this;
+    }
+    
+    JSInteger toJSInteger(Environment theEnv) {
+        return new JSInteger((int)d);
+    }
+    
+    JSBoolean toJSBoolean(Environment theEnv) {
+        return ((d == d) && (d != 0.0)) ? JSBoolean.JSTrue : JSBoolean.JSFalse;
+    }
+    
+    JSString toJSString(Environment theEnv) {
+        return new JSString(Double.toString(d));
+    }
+    
+    JSObject toJSObject(Environment theEnv) {
+        return new NativeNumber(d);
+    }
+    
+    
+ 
+    double d;
+    
+}

mozilla/js/js2/java/JSException.java

@@ -0,0 +1,22 @@
+
+
+class JSException extends RuntimeException {
+
+    JSException(JSValue x)
+    {
+        value = x;
+    }
+    
+    JSValue getValue()
+    {
+        return value;
+    }
+    
+    public String toString()
+    {
+        return value.toJSString(null).s;
+    }
+    
+    JSValue value;
+    
+}

mozilla/js/js2/java/JSIdentifier.java

@@ -0,0 +1,23 @@
+class JSIdentifier extends JSString {
+
+    JSIdentifier(String s)
+    {
+        super(s);
+    }
+    
+    String print(String indent)
+    {
+        return indent + "JSIdentifier : " + s + "\n";
+    }
+
+    JSValue eval(Environment theEnv)
+    {
+        return theEnv.scope.getProp(theEnv, this);
+    }
+    
+    JSReference evalLHS(Environment theEnv)
+    {
+        return new JSReference(theEnv.scope, this);
+    }
+    
+}

mozilla/js/js2/java/JSInteger.java

@@ -0,0 +1,68 @@
+class JSInteger extends JSNumber {
+ 
+    JSInteger(String s)
+    {
+        i = new Integer(s).intValue();
+    }
+    
+    JSInteger(int p)
+    {
+        i = p;
+    }
+    
+    JSValue eval(Environment theEnv)
+    {
+        return this;
+    }
+
+    JSBoolean toJSBoolean(Environment theEnv) {
+        return (i != 0) ? JSBoolean.JSTrue : JSBoolean.JSFalse;
+    }
+    
+    JSDouble toJSDouble(Environment theEnv) {
+        return new JSDouble(i);
+    }
+    
+    JSInteger toJSInteger(Environment theEnv) {
+        return this;
+    }
+    
+    JSValue toPrimitive(Environment theEnv, String hint) {
+        return this;
+    }
+    
+    JSString toJSString(Environment theEnv) {
+        return new JSString(Integer.toString(i));
+    }
+    
+    JSValue twiddle(Environment theEnv) {
+        return new JSInteger(~i);
+    }
+
+    JSValue and(Environment theEnv, JSValue rV) {
+        return new JSInteger(i & rV.toJSInteger(theEnv).i);
+    }
+    
+    JSValue or(Environment theEnv, JSValue rV) {
+        return new JSInteger(i | rV.toJSInteger(theEnv).i);
+    }
+
+    JSValue xor(Environment theEnv, JSValue rV) {
+        return new JSInteger(i ^ rV.toJSInteger(theEnv).i);
+    }
+
+    JSValue shl(Environment theEnv, JSValue rV) {
+        return new JSInteger(i >> rV.toJSInteger(theEnv).i);
+    }
+
+    JSValue shr(Environment theEnv, JSValue rV) {
+        return new JSInteger(i << rV.toJSInteger(theEnv).i);
+    }
+
+    JSValue ushl(Environment theEnv, JSValue rV) {
+        return new JSInteger(i >>> rV.toJSInteger(theEnv).i);
+    }
+
+    int i;
+    
+}

mozilla/js/js2/java/JSName.java

@@ -0,0 +1,41 @@
+class JSName extends ExpressionNode {
+
+    JSName(JSIdentifier anID, int aScope)
+    {
+        id = anID;
+        scope = aScope;         // this is the scope that the name was used in
+    }
+    
+    String print(String indent)
+    {
+        return indent + "JSName : " + id.s + ", scope : " + scope + "\n";
+    }
+
+    JSReference evalLHS(Environment theEnv)
+    {
+        JSScope scope = theEnv.scope;
+        while (scope != null) {
+            if (scope.hasProp(theEnv, id))
+                return new JSReference(scope, id);
+            else
+                scope = scope.parent;
+        }
+        return new JSReference(theEnv.globalScope, id);
+    }
+    
+    JSValue eval(Environment theEnv)
+    {
+        JSScope scope = theEnv.scope;
+        while (scope != null) {
+            if (scope.hasProp(theEnv, id))
+                return scope.getProp(theEnv, id);
+            else
+                scope = scope.parent;
+        }
+        throw new JSException(new JSString(id.s + " undefined"));
+    }
+    
+    JSIdentifier id;
+    int scope;
+    
+}

mozilla/js/js2/java/JSNumber.java

@@ -0,0 +1,8 @@
+abstract class JSNumber extends JSValue {
+
+    JSValue typeof(Environment theEnv) {
+        return new JSString("number");
+    }
+
+    
+}

mozilla/js/js2/java/JSObject.java

@@ -0,0 +1,84 @@
+
+import java.util.Hashtable;
+
+class JSObject extends JSValue {
+    
+    static JSObject objectPrototype = new JSObject("Object");
+    static JSObject JSUndefined = new JSObject("undefined");
+    
+    JSObject(String aClass)
+    {
+        oClass = aClass;
+        prototype = objectPrototype;
+    }
+    
+    void setPrototype(JSObject aPrototype)
+    {
+        prototype = aPrototype;
+    }
+    
+    String print(String indent)
+    {
+        return indent + "JSObject : " + oClass + "\n";
+    }
+
+    public String toString() {
+        return oClass + contents.toString();
+    }
+        
+    JSValue eval(Environment theEnv)
+    {
+        return this;
+    }
+
+    JSValue typeof(Environment theEnv) {
+        if (this == JSUndefined)
+            return new JSString("undefined");
+        else
+            return new JSString("object");
+    }
+    
+    JSBoolean toJSBoolean(Environment theEnv) {
+        return JSBoolean.JSTrue;
+    }
+        
+    JSDouble toJSDouble(Environment theEnv) {
+        return toPrimitive(theEnv, "Number").toJSDouble(theEnv);
+    }
+    
+    JSValue getProp(Environment theEnv, JSString id)
+    {
+        Object v = contents.get(id.s);
+        if (v == null)
+            if (prototype == null)
+                return JSUndefined;
+            else
+                return prototype.getProp(theEnv, id);
+        else
+            return (JSValue)v;
+    }
+        
+    boolean hasProp(Environment theEnv, JSString id)
+    {
+        Object v = contents.get(id.s);
+        if (v == null)
+            if (prototype == null)
+                return false;
+            else
+                return prototype.hasProp(theEnv, id);
+        else
+            return true;
+    }
+        
+    JSValue putProp(Environment theEnv, JSString id, JSValue rV) {
+        contents.put(id.s, rV);
+        return rV;
+    }
+        
+        
+    Hashtable contents = new Hashtable();
+        
+    String oClass;
+    
+    JSObject prototype;
+}

mozilla/js/js2/java/JSReference.java

@@ -0,0 +1,12 @@
+class JSReference {
+
+    JSReference(JSValue aBase, JSString aID)
+    {
+        base = aBase;
+        id = aID;
+    }
+    
+    JSValue base;
+    JSString id;
+
+}

mozilla/js/js2/java/JSScope.java

@@ -0,0 +1,10 @@
+class JSScope extends JSObject {
+
+    JSScope(String s)
+    {
+        super(s);
+    }
+
+    JSScope parent;
+
+}

mozilla/js/js2/java/JSString.java

@@ -0,0 +1,83 @@
+class JSString extends JSValue {
+ 
+    JSString(String p)
+    {
+        s = p;
+    }
+    
+    JSValue eval(Environment theEnv)
+    {
+        return this;
+    }
+    
+    JSValue typeof(Environment theEnv) {
+        return new JSString("string");
+    }
+
+    JSValue add(Environment theEnv, JSValue rV)
+    {
+        return new JSString(s + rV.toJSString(theEnv).s);
+    }
+
+    JSValue gt(Environment theEnv, JSValue rV) {
+        if (rV instanceof JSString)
+            return (s.compareTo(rV.toJSString(theEnv).s) == 1) ? JSBoolean.JSTrue : JSBoolean.JSFalse;
+        else
+            return toJSDouble(theEnv).gt(theEnv, rV);
+    }
+
+    JSValue ge(Environment theEnv, JSValue rV) {
+        if (rV instanceof JSString)
+            return (s.compareTo(rV.toJSString(theEnv).s) != -1) ? JSBoolean.JSTrue : JSBoolean.JSFalse;
+        else
+            return toJSDouble(theEnv).ge(theEnv, rV);
+    }
+    
+    JSValue lt(Environment theEnv, JSValue rV) {
+        if (rV instanceof JSString)
+            return (s.compareTo(rV.toJSString(theEnv).s) == -1) ? JSBoolean.JSTrue : JSBoolean.JSFalse;
+        else
+            return toJSDouble(theEnv).lt(theEnv, rV);
+    }
+    
+    JSValue le(Environment theEnv, JSValue rV) {
+        if (rV instanceof JSString)
+            return (s.compareTo(rV.toJSString(theEnv).s) != 1) ? JSBoolean.JSTrue : JSBoolean.JSFalse;
+        else
+            return toJSDouble(theEnv).le(theEnv, rV);
+    }
+    
+    JSValue eq(Environment theEnv, JSValue rV) {
+        if (rV instanceof JSString)
+            return (s.compareTo(rV.toJSString(theEnv).s) == 0) ? JSBoolean.JSTrue : JSBoolean.JSFalse;
+        else
+            return toJSDouble(theEnv).eq(theEnv, rV);
+    }
+    
+    JSValue ne(Environment theEnv, JSValue rV) {
+        if (rV instanceof JSString)
+            return (s.compareTo(rV.toJSString(theEnv).s) != 0) ? JSBoolean.JSTrue : JSBoolean.JSFalse;
+        else
+            return toJSDouble(theEnv).ne(theEnv, rV);
+    }
+    
+    JSDouble toJSDouble(Environment theEnv) {
+        return new JSDouble(s);         // XXX Way More To Do, see Rhino ScriptRuntime.java
+    }
+    
+    JSString toJSString(Environment theEnv) {
+        return this;
+    }
+    
+    JSValue toPrimitive(Environment theEnv, String hint) {
+        return this;
+    }
+    
+    String print(String indent)
+    {
+        return indent + "JSString : " + s + "\n";
+    }
+
+    protected String s;
+    
+}

mozilla/js/js2/java/JSValue.java

@@ -0,0 +1,222 @@
+class JSValue extends ExpressionNode {
+    
+    String print(String indent)
+    {
+        return indent + "JSValue\n";
+    }
+
+    JSReference evalLHS(Environment theEnv)
+    {
+        throw new RuntimeException("EvalLHS on non-lvalue");
+    }
+    
+    JSValue eval(Environment theEnv)
+    {
+        throw new RuntimeException("Eval on JSValue");
+    }    
+    
+    JSValue unimplemented(String op)
+    {
+        throw new RuntimeException("unimplemented " + op + " called");
+    }
+    
+    JSValue gt(Environment theEnv, JSValue rV) {
+        JSValue lV = toPrimitive(theEnv, "Number");
+        rV = rV.toPrimitive(theEnv, "Number");
+        if ((lV instanceof JSString) && (rV instanceof JSString))
+            return lV.gt(theEnv, rV);
+        else
+            return lV.toJSDouble(theEnv).gt(theEnv, rV.toJSDouble(theEnv));
+    }
+
+    JSValue ge(Environment theEnv, JSValue rV) {
+        JSValue lV = toPrimitive(theEnv, "Number");
+        rV = rV.toPrimitive(theEnv, "Number");
+        if ((lV instanceof JSString) && (rV instanceof JSString))
+            return lV.ge(theEnv, rV);
+        else
+            return lV.toJSDouble(theEnv).ge(theEnv, rV.toJSDouble(theEnv));
+    }
+
+    JSValue lt(Environment theEnv, JSValue rV) {
+        JSValue lV = toPrimitive(theEnv, "Number");
+        rV = rV.toPrimitive(theEnv, "Number");
+        if ((lV instanceof JSString) && (rV instanceof JSString))
+            return lV.lt(theEnv, rV);
+        else
+            return lV.toJSDouble(theEnv).lt(theEnv, rV.toJSDouble(theEnv));
+    }
+
+    JSValue le(Environment theEnv, JSValue rV) {
+        JSValue lV = toPrimitive(theEnv, "Number");
+        rV = rV.toPrimitive(theEnv, "Number");
+        if ((lV instanceof JSString) && (rV instanceof JSString))
+            return lV.le(theEnv, rV);
+        else
+            return lV.toJSDouble(theEnv).le(theEnv, rV.toJSDouble(theEnv));
+    }
+
+    JSValue eq(Environment theEnv, JSValue rV) {
+        JSValue lV = toPrimitive(theEnv, "Number");
+        rV = rV.toPrimitive(theEnv, "Number");
+        if ((lV instanceof JSString) && (rV instanceof JSString))
+            return lV.eq(theEnv, rV);
+        else
+            return lV.toJSDouble(theEnv).eq(theEnv, rV.toJSDouble(theEnv));
+    }
+
+    JSValue ne(Environment theEnv, JSValue rV) {
+        JSValue lV = toPrimitive(theEnv, "Number");
+        rV = rV.toPrimitive(theEnv, "Number");
+        if ((lV instanceof JSString) && (rV instanceof JSString))
+            return lV.ne(theEnv, rV);
+        else
+            return lV.toJSDouble(theEnv).ne(theEnv, rV.toJSDouble(theEnv));
+    }
+    
+    JSValue plus(Environment theEnv) {
+        return toJSDouble(theEnv).plus(theEnv);
+    }
+
+    JSValue minus(Environment theEnv) {
+        return toJSDouble(theEnv).minus(theEnv);
+    }
+
+    JSValue twiddle(Environment theEnv) {
+        return toJSInteger(theEnv).twiddle(theEnv);
+    }
+
+    JSValue bang(Environment theEnv) {
+        return toJSBoolean(theEnv).bang(theEnv);
+    }
+
+    JSValue typeof(Environment theEnv) {
+        return unimplemented("typeof");
+    }
+
+    JSValue add(Environment theEnv, JSValue rV) {
+        JSValue lV = toPrimitive(theEnv, "");
+        rV = rV.toPrimitive(theEnv, "");
+        if ((lV instanceof JSString) || (rV instanceof JSString))
+            return lV.add(theEnv, rV);
+        else
+            return lV.toJSDouble(theEnv).add(theEnv, rV);
+    }
+    
+    JSValue subtract(Environment theEnv, JSValue rV) {
+        return toJSDouble(theEnv).subtract(theEnv, rV.toJSDouble(theEnv));
+    }
+    
+    JSValue multiply(Environment theEnv, JSValue rV) {
+        return toJSDouble(theEnv).multiply(theEnv, rV.toJSDouble(theEnv));
+    }
+    
+    JSValue divide(Environment theEnv, JSValue rV) {
+        return toJSDouble(theEnv).divide(theEnv, rV.toJSDouble(theEnv));
+    }
+    
+    JSValue remainder(Environment theEnv, JSValue rV) {
+        return toJSDouble(theEnv).remainder(theEnv, rV.toJSDouble(theEnv));
+    }
+    
+    JSValue and(Environment theEnv, JSValue rV) {
+        return toJSInteger(theEnv).and(theEnv, rV.toJSInteger(theEnv));
+    }
+    
+    JSValue or(Environment theEnv, JSValue rV) {
+        return toJSInteger(theEnv).or(theEnv, rV.toJSInteger(theEnv));
+    }
+    
+    JSValue xor(Environment theEnv, JSValue rV) {
+        return toJSInteger(theEnv).xor(theEnv, rV.toJSInteger(theEnv));
+    }
+    
+    JSValue shl(Environment theEnv, JSValue rV) {
+        return toJSInteger(theEnv).shl(theEnv, rV.toJSInteger(theEnv));
+    }
+    
+    JSValue shr(Environment theEnv, JSValue rV) {
+        return toJSInteger(theEnv).shr(theEnv, rV.toJSInteger(theEnv));
+    }
+    
+    JSValue ushl(Environment theEnv, JSValue rV) {
+        return toJSInteger(theEnv).ushl(theEnv, rV.toJSInteger(theEnv));
+    }     
+    
+    JSValue getProp(Environment theEnv, JSString id) {
+        return toJSObject(theEnv).getProp(theEnv, id);
+    }
+    
+    boolean hasProp(Environment theEnv, JSString id) {
+        return toJSObject(theEnv).hasProp(theEnv, id);
+    }
+
+    JSValue putProp(Environment theEnv, JSString id, JSValue rV) {
+        return toJSObject(theEnv).putProp(theEnv, id, rV);
+    }
+    
+    JSValue call(Environment theEnv, JSValue rV) {
+        throw new JSException(new JSString("[[call]] not implemented"));
+    }
+    
+    JSValue defaultValue(Environment theEnv, String hint) {
+/*
+When the [[DefaultValue]] method of O is called with hint String, the following steps are taken:
+1. Call the [[Get]] method of object O with argument "toString".
+2. If Result(1) is not an object, go to step 5.
+3. Call the [[Call]] method of Result(1), with O as the this value and an empty argument list.
+4. If Result(3) is a primitive value, return Result(3).
+5. Call the [[Get]] method of object O with argument "valueOf".
+6. If Result(5) is not an object, go to step 9.
+7. Call the [[Call]] method of Result(5), with O as the this value and an empty argument list.
+8. If Result(7) is a primitive value, return Result(7).
+9. Generate a runtime error.
+*/
+        JSValue v = null;
+        if (hint.equals("String")) {
+            v = getProp(theEnv, new JSString("toString"));
+            if (v instanceof JSObject) {
+                // invoke 'v.Call' with 'this' as the JS this
+            }
+            else {
+                v = getProp(theEnv, new JSString("valueOf"));
+                if (v instanceof JSObject) {                    
+                }
+                else 
+                    throw new JSException(new JSString("No default value"));
+            }
+        }
+        else { // hint.equals("Number")
+/*
+When the [[DefaultValue]] method of O is called with hint Number, the following steps are taken:
+1. Call the [[Get]] method of object O with argument "valueOf".
+2. If Result(1) is not an object, go to step 5.
+3. Call the [[Call]] method of Result(1), with O as the this value and an empty argument list.
+4. If Result(3) is a primitive value, return Result(3).
+5. Call the [[Get]] method of object O with argument "toString".
+6. If Result(5) is not an object, go to step 9.
+7. Call the [[Call]] method of Result(5), with O as the this value and an empty argument list.
+8. If Result(7) is a primitive value, return Result(7).
+9. Generate a runtime error.
+*/
+            
+        }
+        return null;
+    }
+    
+    JSValue toPrimitive(Environment theEnv, String hint) {
+        JSValue result = defaultValue(theEnv, hint);
+        if (result instanceof JSObject)
+            throw new JSException(new JSString("default value returned object"));
+        else
+            return result;
+    }
+       
+    
+    JSObject toJSObject(Environment theEnv)       { unimplemented("toJSObjet"); return null; }
+    JSDouble toJSDouble(Environment theEnv)       { unimplemented("toJSDouble"); return null; }
+    JSInteger toJSInteger(Environment theEnv)     { unimplemented("toJSInteger"); return null; }
+    JSString toJSString(Environment theEnv)       { unimplemented("toJSString"); return null; }
+    JSBoolean toJSBoolean(Environment theEnv)     { unimplemented("toJSBoolean"); return null; }
+
+}

mozilla/js/js2/java/JSValueList.java

@@ -0,0 +1,40 @@
+
+import java.util.Vector;
+
+class JSValueList extends JSValue {
+    
+    static JSValueList buildList(JSValue left, JSValue right)
+    {
+        JSValueList theList;
+        if (left instanceof JSValueList) {
+            theList = (JSValueList)left;
+            theList.add(right);
+        }
+        else
+            if (right instanceof JSValueList) {
+                theList = (JSValueList)right;
+                theList.add(left);
+            }
+            else {
+                theList = new JSValueList();
+                theList.add(left);
+                theList.add(right);
+            }
+        
+        return theList;                       
+    }
+    
+    void add(JSValue v)
+    {
+        if (v instanceof JSValueList) {
+            JSValueList vl = (JSValueList)v;
+            for (int i = 0; i < vl.contents.size(); i++)
+                contents.addElement((JSValue)(vl.contents.elementAt(i)));
+        }
+        else
+            contents.addElement(v);
+    }
+    
+    Vector contents = new Vector();
+    
+}

mozilla/js/js2/java/LogicalNode.java

@@ -0,0 +1,39 @@
+class LogicalNode extends BinaryNode {
+
+    LogicalNode(String aOp, ExpressionNode aLeft, ExpressionNode aRight)
+    {
+        super(aOp, aLeft, aRight);
+    }
+
+    JSValue eval(Environment theEnv)
+    {
+        JSBoolean b = left.eval(theEnv).toJSBoolean(theEnv);
+        if (op == "&&") {
+            if (b.isFalse())
+                return b;
+            else {
+                b = right.eval(theEnv).toJSBoolean(theEnv);
+                if (b.isFalse())
+                    return b;
+                else
+                    return JSBoolean.JSTrue;
+            }
+        }
+        if (op == "||") {
+            if (b.isTrue())
+                return b;
+            else {
+                b = right.eval(theEnv).toJSBoolean(theEnv);
+                if (b.isTrue())
+                    return b;
+                else
+                    return JSBoolean.JSFalse;
+            }
+        }
+        else {
+            System.out.println("missing logical op " + op);
+            return null;
+        }
+    }
+
+}

mozilla/js/js2/java/NativeFunction.java

@@ -0,0 +1,35 @@
+
+import java.util.Vector;
+
+class NativeFunction extends JSObject {
+    
+    NativeFunction(ControlNode aBody)
+    {
+        super("Function");
+        body = aBody;
+    }
+    
+    JSValue call(Environment theEnv, JSValue rV)
+    {
+        
+        JSScope args = new JSScope("Arguments");
+        theEnv.enterNewScope(args);
+        
+        for (int i = 0; i < parameters.size(); i++) {
+            if (rV instanceof JSValueList)
+                args.putProp(theEnv, (JSString)(parameters.elementAt(i)), (JSValue) ( ((JSValueList)rV).contents.elementAt(i)) );
+            else
+                args.putProp(theEnv, (JSString)(parameters.elementAt(i)), rV );
+        }
+        
+        ControlNode c = body;
+        while (c != null) c = c.eval(theEnv);
+        
+        theEnv.leaveScope();
+        return theEnv.resultValue;
+    }
+    
+    ControlNode body;
+    Vector parameters = new Vector();
+    
+}

mozilla/js/js2/java/NativeNumber.java

@@ -0,0 +1,18 @@
+class NativeNumber extends JSObject {
+    
+    NativeNumber(double p) {
+        super("Number");
+        d = p;
+    }
+    
+    JSValue defaultValue(Environment theEnv, String hint) {
+        if (hint.equals("String"))
+            return new JSString(Double.toString(d));
+        else
+            return new JSDouble(d);
+    }    
+    
+    double d;
+    
+    
+}

mozilla/js/js2/java/RelationalNode.java

@@ -0,0 +1,35 @@
+class RelationalNode extends BinaryNode {
+
+    RelationalNode(String aOp, ExpressionNode aLeft, ExpressionNode aRight)
+    {
+        super(aOp, aLeft, aRight);
+    }
+
+    JSValue eval(Environment theEnv)
+    {
+        JSValue lV = left.eval(theEnv);
+        JSValue rV = right.eval(theEnv);
+
+        if (op == ">")
+            return lV.gt(theEnv, rV);
+        else
+        if (op == ">=")
+            return lV.ge(theEnv, rV);
+        else
+        if (op == "<")
+            return lV.lt(theEnv, rV);
+        else
+        if (op == "<=")
+            return lV.le(theEnv, rV);
+        else
+        if (op == "==")
+            return lV.eq(theEnv, rV);
+        else
+        if (op == "!=")
+            return lV.ne(theEnv, rV);
+        else {
+            System.out.println("missing relational op");
+            return null;
+        }
+    }
+}

mozilla/js/js2/java/SwitchNode.java

@@ -0,0 +1,43 @@
+
+import java.util.Vector;
+
+class SwitchNode extends ControlNode {
+    
+
+    SwitchNode(ExpressionNode e)
+    {
+        super(e);
+    }
+    
+    void addCase(ExpressionNode e, ControlNode c)
+    {
+        if (e == null)
+            defaultCode = c;
+        else {
+            caseExpr.addElement(e);
+            caseCode.addElement(c);
+        }
+    }
+    
+    ControlNode eval(Environment theEnv)
+    {
+        JSValue v = expr.eval(theEnv);
+        int count = caseExpr.size();
+        for (int i = 0; i < count; i++) {
+            ExpressionNode e = (ExpressionNode)(caseExpr.elementAt(i));
+            JSBoolean b = v.eq(theEnv, e.eval(theEnv)).toJSBoolean(theEnv);                       
+            if (b.isTrue())
+                return (ControlNode)(caseCode.elementAt(i));
+        }
+        if (defaultCode != null)
+            return defaultCode;
+        else
+            return next;
+    }
+
+    Vector caseExpr = new Vector();
+    Vector caseCode = new Vector();
+    
+    ControlNode defaultCode;
+    
+}

mozilla/js/js2/java/ThrowNode.java

@@ -0,0 +1,13 @@
+class ThrowNode extends ControlNode {
+
+    ThrowNode(ExpressionNode e)
+    {
+        super(e);
+    }
+
+    ControlNode eval(Environment theEnv)
+    {
+        throw new JSException(expr.eval(theEnv));
+    }
+
+}

mozilla/js/js2/java/TryNode.java

@@ -0,0 +1,47 @@
+
+import java.util.Vector;
+
+class TryNode extends ControlNode {
+    
+    TryNode(ControlNode tryCode)
+    {
+        super(null);
+        tryBody = tryCode;
+    }
+    
+    void addFinally(ControlNode finallyCode)
+    {
+        finallyBody = finallyCode;
+    }
+    
+    void addCatchClause(ExpressionNode e, ControlNode c)
+    {
+        catchExpr.addElement(e);
+        catchCode.addElement(c);
+    }
+
+    ControlNode eval(Environment theEnv)
+    {
+        try {
+            ControlNode c = tryBody;
+            while (c != null) c = c.eval(theEnv);
+        }
+        catch (JSException x) {
+            int count = catchExpr.size();
+            for (int i = 0; i < count; i++) {
+                ExpressionNode e = (ExpressionNode)(catchExpr.elementAt(i));
+                String id = ((JSObject)e).oClass;
+                theEnv.scope.contents.put(id, x.getValue());    // XXX YAARGH !!!
+                return (ControlNode)(catchCode.elementAt(i));
+            }
+        }
+        return next;
+    }
+    
+    Vector catchExpr = new Vector();
+    Vector catchCode = new Vector();
+        
+    ControlNode tryBody;
+    ControlNode finallyBody;    
+
+}

mozilla/js/js2/java/UnaryNode.java

@@ -0,0 +1,62 @@
+class UnaryNode extends ExpressionNode {
+    
+    UnaryNode(String aOp, ExpressionNode aChild)
+    {
+        child = aChild;
+        op = aOp;
+    }
+    
+    String print(String indent)
+    {
+        StringBuffer result = new StringBuffer(indent);
+        result.append("UnaryNode ");
+        result.append(op);
+        result.append("\n");
+        indent += "    ";
+        if (child == null) {
+            result.append(indent);
+            result.append("null\n");
+        }
+        else
+            result.append(child.print(indent));
+        return result.toString();
+    }
+    
+    JSValue eval(Environment theEnv)
+    {
+        JSValue cV = child.eval(theEnv);
+
+        if (op == "+")
+            return cV.plus(theEnv);
+        else
+        if (op == "-")
+            return cV.minus(theEnv);
+        else
+        if (op == "~")
+            return cV.twiddle(theEnv);
+        else
+        if (op == "!")
+            return cV.bang(theEnv);
+        else
+        if (op == "typeof")
+            return cV.typeof(theEnv);
+        else {
+            System.out.println("missing unary op " + op);
+            return null;
+        }
+    }
+
+    String getOperator()
+    {
+        return op;
+    }
+    
+    ExpressionNode getChild()
+    {
+        return child;
+    }
+    
+    protected ExpressionNode child;
+    protected String op;
+    
+}

mozilla/js/js2/js2.cpp

@@ -0,0 +1,343 @@
+// -*- Mode: C++; tab-width: 4; 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 the JavaScript 2 Prototype.
+//
+// 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.
+
+
+//
+// JS2 shell.
+//
+
+#if 1
+#define DEBUGGER_FOO
+#define INTERPRET_INPUT
+#else
+#undef DEBUGGER_FOO
+#undef INTERPRET_INPUT
+#endif
+
+#include <assert.h>
+
+#include "world.h"
+#include "interpreter.h"
+#include "icodegenerator.h"
+
+#ifdef DEBUGGER_FOO
+#include "debugger.h"
+#endif
+        
+#if defined(XP_MAC) && !defined(XP_MAC_MPW)
+#include <SIOUX.h>
+#include <MacTypes.h>
+
+static char *mac_argv[] = {"js2", 0};
+
+static void initConsole(StringPtr consoleName,
+                        const char* startupMessage,
+                        int &argc, char **&argv)
+{
+    SIOUXSettings.autocloseonquit = false;
+    SIOUXSettings.asktosaveonclose = false;
+    SIOUXSetTitle(consoleName);
+
+    // Set up a buffer for stderr (otherwise it's a pig).
+    static char buffer[BUFSIZ];
+    setvbuf(stderr, buffer, _IOLBF, BUFSIZ);
+
+    JavaScript::stdOut << startupMessage;
+
+    argc = 1;
+    argv = mac_argv;
+}
+
+#endif
+
+namespace JavaScript {
+namespace Shell {
+    
+using namespace ICG;
+using namespace JSTypes;
+using namespace Interpreter;
+
+// Interactively read a line from the input stream in and put it into
+// s. Return false if reached the end of input before reading anything.
+static bool promptLine(LineReader &inReader, string &s, const char *prompt)
+{
+    if (prompt) {
+        stdOut << prompt;
+	  #ifdef XP_MAC_MPW
+        // Print a CR after the prompt because MPW grabs the entire
+        // line when entering an interactive command.
+        stdOut << '\n';
+	  #endif
+    }
+    return inReader.readLine(s) != 0;
+}
+
+World world;
+
+/* "filename" of the console */
+const String ConsoleName = widenCString("<console>");
+const bool showTokens = false;
+
+#ifdef DEBUGGER_FOO    
+Reader *sourceReader; /* Reader for console file */
+
+static
+const Reader *ResolveFile (const String& fileName)
+{
+    if (fileName == ConsoleName)
+        return sourceReader;
+    else
+    {
+        stdErr << "Could not locate source for file '" << fileName << "'\n";
+        return 0;
+    }
+    
+}
+
+JavaScript::Debugger::Shell jsd(world, stdin, JavaScript::stdOut,
+                                JavaScript::stdOut, &ResolveFile);
+#endif
+
+static JSValue print(Context *cx, const JSValues &argv)
+{
+    size_t n = argv.size();
+    if (n > 1) {                // the 'this' parameter is un-interesting
+        stdOut << argv[1];
+        for (size_t i = 2; i < n; ++i)
+            stdOut << ' ' << argv[i];
+    }
+    stdOut << "\n";
+    return kUndefinedValue;
+}
+
+static JSValue dump(Context *cx, const JSValues &argv)
+{
+    size_t n = argv.size();
+    if (n > 1) {                // the 'this' parameter is un-interesting
+        if (argv[1].isFunction()) {
+            JSFunction *f = static_cast<JSFunction *>(argv[1].function);
+            if (f->isNative())
+                stdOut << "Native function";
+            else
+                stdOut << *f->getICode();
+        }
+        else
+            stdOut << "Not a function";
+    }
+    stdOut << "\n";
+    return kUndefinedValue;
+}
+
+
+inline char narrow(char16 ch) { return char(ch); }
+
+static JSValue load(Context *cx, const JSValues &argv)
+{
+
+    JSValue result;
+    size_t n = argv.size();
+    if (n > 1) {
+        for (size_t i = 1; i < n; ++i) {
+            JSValue val = argv[i].toString();
+            if (val.isString()) {
+                String fileName(*val.string);
+                std::string str(fileName.length(), char());
+                std::transform(fileName.begin(), fileName.end(), str.begin(), narrow);
+                FILE* f = fopen(str.c_str(), "r");
+                if (f) {
+                    result = cx->readEvalFile(f, fileName);
+                    fclose(f);
+                }
+            }
+        }
+    }
+    return result;
+}
+
+#if 0       // need a XP version of this, rip off from Monkey?
+#include <sys/timeb.h>
+static JSValue time(Context *cx, const JSValues &argv)
+{
+    struct _timeb timebuffer;
+    _ftime(&timebuffer);
+
+    return JSValue((double)timebuffer.time * 1000 + timebuffer.millitm);
+}
+#endif
+
+static void readEvalPrint(FILE *in, World &world)
+{
+    JSScope global;
+    Context cx(world, &global);
+#ifdef DEBUGGER_FOO
+    jsd.attachToContext (&cx);
+#endif
+    global.defineNativeFunction(world.identifiers["print"], print);
+    global.defineNativeFunction(world.identifiers["dump"], dump);
+    global.defineNativeFunction(world.identifiers["load"], load);
+//   global.defineNativeFunction(world.identifiers["time"], time);
+
+    String buffer;
+    string line;
+    LineReader inReader(in);
+        
+    while (promptLine(inReader, line, buffer.empty() ? "js> " : "> ")) {
+        appendChars(buffer, line.data(), line.size());
+        try {
+            Arena a;
+            Parser p(world, a, buffer, ConsoleName);
+                
+            if (showTokens) {
+                Lexer &l = p.lexer;
+                while (true) {
+                    const Token &t = l.get(true);
+                    if (t.hasKind(Token::end))
+                        break;
+                    stdOut << ' ';
+                    t.print(stdOut, true);
+                }
+	            stdOut << '\n';
+            } else {
+                StmtNode *parsedStatements = p.parseProgram();
+				ASSERT(p.lexer.peek(true).hasKind(Token::end));
+                {
+                	PrettyPrinter f(stdOut, 30);
+                	{
+                		PrettyPrinter::Block b(f, 2);
+	                	f << "Program =";
+	                	f.linearBreak(1);
+	                	StmtNode::printStatements(f, parsedStatements);
+                	}
+                	f.end();
+                }
+        	    stdOut << '\n';
+#ifdef INTERPRET_INPUT
+#ifdef DEBUGGER_FOO
+                sourceReader = &(p.lexer.reader);
+#endif
+				// Generate code for parsedStatements, which is a linked 
+                // list of zero or more statements
+                ICodeModule* icm = cx.genCode(parsedStatements, ConsoleName);
+                if (icm) {
+stdOut << *icm;
+                    JSValue result = cx.interpret(icm, JSValues());
+                    stdOut << "result = " << result << "\n";
+                    delete icm;
+                }
+#endif
+            }
+            clear(buffer);
+        } catch (Exception &e) {
+            /* If we got a syntax error on the end of input,
+             * then wait for a continuation
+             * of input rather than printing the error message. */
+            if (!(e.hasKind(Exception::syntaxError) &&
+                  e.lineNum && e.pos == buffer.size() &&
+                  e.sourceFile == ConsoleName)) {
+                stdOut << '\n' << e.fullMessage();
+                clear(buffer);
+            }
+        }
+    }
+    stdOut << '\n';
+}
+
+
+/**
+ * Poor man's instruction tracing facility.
+ */
+class Tracer : public Context::Listener {
+    typedef InstructionStream::difference_type InstructionOffset;
+    void listen(Context* context, Context::Event event)
+    {
+        if (event & Context::EV_STEP) {
+            ICodeModule *iCode = context->getICode();
+            JSValues &registers = context->getRegisters();
+            InstructionIterator pc = context->getPC();
+            
+            
+            InstructionOffset offset = (pc - iCode->its_iCode->begin());
+            printFormat(stdOut, "trace [%02u:%04u]: ",
+                        iCode->mID, offset);
+
+            Instruction* i = *pc;
+            stdOut << *i;
+            if (i->op() != BRANCH && i->count() > 0) {
+                stdOut << " [";
+                i->printOperands(stdOut, registers);
+                stdOut << "]\n";
+            } else {
+                stdOut << '\n';
+            }
+        }
+    }
+};
+
+
+
+char * tests[] = {
+    "function fact(n) { if (n > 1) return n * fact(n-1); else return 1; } print(fact(6), \" should be 720\"); return;" ,
+    "a = { f1: 1, f2: 2}; print(a.f2++, \" should be 2\"); print(a.f2 <<= 1, \" should be 6\"); return;" ,
+    "class A { static var b = 3; static function s() { return b++; }function x() { return \"Ax\"; } function y() { return \"Ay\"; } }  var a:A = new A; print(a.s(), \" should be 3\"); print(A.b, \" should be 4\"); return;",
+    "class B extends A { function x() { return \"Bx\"; }  }  var b:B = new B; print(b.x(), \" should be Bx\"); print(b.y(), \" should be Ay\"); return;"
+};
+
+static void testCompile()
+{
+    JSScope glob;
+    Context cx(world, &glob);
+    glob.defineNativeFunction(world.identifiers["print"], print);
+    for (uint i = 0; i < sizeof(tests) / sizeof(char *); i++) {
+        String testScript = widenCString(tests[i]);
+        Arena a;
+        Parser p(world, a, testScript, widenCString("testCompile"));
+        StmtNode *parsedStatements = p.parseProgram();
+        ICodeGenerator icg(&world, &glob);
+        StmtNode *s = parsedStatements;
+        while (s) {
+            icg.genStmt(s);
+            s = s->next;
+        }
+        cx.interpret(icg.complete(), JSValues());
+    }
+}
+
+
+} /* namespace Shell */
+} /* namespace JavaScript */
+
+
+#if defined(XP_MAC) && !defined(XP_MAC_MPW)
+int main(int argc, char **argv)
+{
+    initConsole("\pJavaScript Shell", "Welcome to the js2 shell.\n", argc, argv);
+#else
+int main(int , char **)
+{
+#endif
+
+    using namespace JavaScript;
+    using namespace Shell;
+#if 1
+    testCompile();
+#endif
+    readEvalPrint(stdin, world);
+    return 0;
+    // return ProcessArgs(argv + 1, argc - 1);
+}

mozilla/js/js2/jsclasses.h

@@ -0,0 +1,316 @@
+/* -*- Mode: C++; tab-width: 4; 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 the JavaScript 2 Prototype.
+ *
+ * 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 jsclasses_h
+#define jsclasses_h
+
+#include "jstypes.h"
+
+namespace JavaScript {
+namespace JSClasses {
+
+    using JSTypes::JSValue;
+    using JSTypes::JSObject;
+    using JSTypes::JSType;
+    using JSTypes::JSScope;
+    using JSTypes::JSFunction;
+    using ICG::ICodeModule;
+    
+
+    struct JSSlot {
+        typedef enum { kNoFlag = 0, kIsConstructor = 0x01 } SlotFlags;   // <-- readonly, enumerable etc
+
+        JSType* mType;
+        uint32 mIndex;
+        SlotFlags mFlags;
+        
+        JSSlot() : mType(0), mFlags(kNoFlag)
+        {
+        }
+
+        bool isConstructor() const          { return (mFlags & kIsConstructor) != 0; }
+    };
+
+#if defined(XP_MAC)
+    // copied from default template parameters in map.
+    typedef gc_allocator<std::pair<const String, JSSlot> > gc_slot_allocator;
+#elif defined(XP_UNIX)
+    typedef JSTypes::gc_map_allocator gc_slot_allocator;
+#elif defined(_WIN32)
+    typedef gc_allocator<JSSlot> gc_slot_allocator;
+#endif
+
+    typedef std::map<String, JSSlot, std::less<const String>, gc_slot_allocator> JSSlots;
+
+
+    typedef std::pair<String, JSFunction*> MethodEntry;
+    typedef std::vector<MethodEntry> JSMethods;
+
+    /**
+     * Represents a class in the JavaScript 2 (ECMA 4) language.
+     * Since a class defines a scope, and is defined in a scope,
+     * a new scope is created whose parent scope is the scope of
+     * class definition.
+     */
+    class JSClass : public JSType {
+    protected:
+        JSScope* mScope;        
+        uint32 mSlotCount;
+        JSSlots mSlots;
+        uint32 mStaticCount;
+        JSSlots mStaticSlots;
+        JSValue* mStaticData;
+        JSMethods mMethods;
+    public:
+        JSClass(JSScope* scope, const String& name, JSClass* superClass = 0)
+            :   JSType(name, superClass),
+                mScope(new JSScope(scope)),
+                mSlotCount(superClass ? superClass->mSlotCount : 0),
+                mStaticCount(0),
+                mStaticData(0)
+        {
+            if (superClass) {
+                   // inherit superclass methods
+                JSMethods::iterator end = superClass->mMethods.end();
+                for (JSMethods::iterator i = superClass->mMethods.begin(); i != end; i++)
+                    mMethods.push_back(*i);
+            }    
+        }
+        
+        JSClass* getSuperClass()
+        {
+            return static_cast<JSClass*>(mBaseType);
+        }
+        
+        JSScope* getScope()
+        {
+            return mScope;
+        }
+
+        const JSSlot& defineSlot(const String& name, JSType* type)
+        {
+            JSSlot& slot = mSlots[name];
+            ASSERT(slot.mType == 0);
+            slot.mType = type;
+            slot.mIndex = mSlotCount++; // starts at 0.
+            return slot;
+        }
+        
+        const JSSlot& getSlot(const String& name)
+        {
+            return mSlots[name];
+        }
+        
+        bool hasSlot(const String& name)
+        {
+            return (mSlots.find(name) != mSlots.end());
+        }
+        
+        JSSlots& getSlots()
+        {
+            return mSlots;
+        }
+        
+        uint32 getSlotCount()
+        {
+            return mSlotCount;
+        }
+        
+        /**
+         * Define a static/class variable.
+         */
+        const JSSlot& defineStatic(const String& name, JSType* type)
+        {
+            JSSlot& slot = mStaticSlots[name];
+            ASSERT(slot.mType == 0);
+            slot.mType = type;
+            slot.mIndex = mStaticCount++;
+            return slot;
+        }
+
+        const JSSlot& defineConstructor(const String& name)
+        {
+            JSSlot& slot = mStaticSlots[name];
+            ASSERT(slot.mType == 0);
+            slot.mType = &JSTypes::Function_Type;
+            slot.mIndex = mStaticCount++;
+            slot.mFlags = JSSlot::kIsConstructor;
+            return slot;
+        }
+        
+        const JSSlot& getStatic(const String& name)
+        {
+            return mStaticSlots[name];
+        }
+        
+        bool hasStatic(const String& name, JSType*& type, bool &isConstructor)
+        {
+            JSSlots::const_iterator i = mStaticSlots.find(name);
+            if (i != mStaticSlots.end()) {
+                type = i->second.mType;
+                isConstructor = i->second.isConstructor();
+                return true;
+            }
+            return false;
+        }
+
+        bool hasStatic(const String& name)
+        {
+            return (mStaticSlots.find(name) != mStaticSlots.end());
+        }
+
+        bool complete()
+        {
+            mStaticData = new JSValue[mStaticCount];
+            return (mStaticData != 0);
+        }
+
+        JSValue& operator[] (uint32 index)
+        {
+            return mStaticData[index];
+        }
+        
+        virtual void printProperties(Formatter& f)
+        {
+            f << "Properties:\n";
+            JSObject::printProperties(f);
+            f << "Statics:\n";
+            printStatics(f);
+        }
+
+        void printStatics(Formatter& f)
+        {
+            JSClass* superClass = getSuperClass();
+            if (superClass) superClass->printStatics(f);
+            for (JSSlots::iterator i = mStaticSlots.begin(), end = mStaticSlots.end(); i != end; ++i) {
+                f << i->first << " : " << mStaticData[i->second.mIndex]  << "\n";
+            }
+        }
+
+        void defineMethod(const String& name, JSFunction *f)
+        {
+            uint32 slot;
+            if (hasMethod(name, slot))
+                mMethods[slot] = MethodEntry(name, f);
+            else
+                mMethods.push_back(MethodEntry(name, f));
+        }
+
+        bool hasMethod(const String& name, uint32& index)
+        {
+            JSMethods::iterator end = mMethods.end();
+            for (JSMethods::iterator i = mMethods.begin(); i != end; i++) {
+                if (i->first == name) {
+                    index = i - mMethods.begin();
+                    return true;
+                }
+            }
+            return false;
+        }
+
+        JSFunction* getMethod(uint32 index)
+        {
+            return mMethods[index].second;
+        }
+    };
+
+    /**
+     * Represents an instance of a JSClass.
+     */
+    class JSInstance : public JSObject {
+    protected:
+        JSValue mSlots[1];
+    public:
+        void* operator new(size_t n, JSClass* thisClass)
+        {
+            uint32 slotCount = thisClass->getSlotCount();
+            if (slotCount > 0) n += sizeof(JSValue) * (slotCount - 1);
+            return gc_base::operator new(n);
+        }
+        
+#if !defined(XP_MAC)
+        void operator delete(void* /*ptr*/, JSClass* /*thisClass*/) {}
+#endif
+        
+        JSInstance(JSClass* thisClass)
+        {
+            mType = thisClass;
+            // initialize extra slots with undefined.
+            uint32 slotCount = thisClass->getSlotCount();
+            if (slotCount > 0) {
+                std::uninitialized_fill(&mSlots[1], &mSlots[1] + (slotCount - 1),
+                                        JSTypes::kUndefinedValue);
+            }
+            // for grins, use the prototype link to access methods.
+            setPrototype(thisClass->getScope());
+        }
+        
+        JSFunction* getMethod(uint32 index)
+        {
+            return getClass()->getMethod(index);
+        }
+
+        JSClass* getClass()
+        {
+            return static_cast<JSClass*>(mType);
+        }
+        
+        JSValue& operator[] (uint32 index)
+        {
+            return mSlots[index];
+        }
+
+        virtual void printProperties(Formatter& f)
+        {
+            f << "Properties:\n";
+            JSObject::printProperties(f);
+            f << "Slots:\n";
+            printSlots(f, getClass());
+        }
+
+    private:
+        void printSlots(Formatter& f, JSClass* thisClass)
+        {
+            JSClass* superClass = thisClass->getSuperClass();
+            if (superClass) printSlots(f, superClass);
+            JSSlots& slots = thisClass->getSlots();
+            for (JSSlots::iterator i = slots.begin(), end = slots.end(); i != end; ++i) {
+                f << i->first << " : " <<  mSlots[i->second.mIndex]  << "\n";
+            }
+        }
+    };
+    
+} /* namespace JSClasses */
+} /* namespace JavaScript */
+
+#endif /* jsclasses_h */

mozilla/js/js2/jsmath.cpp

@@ -0,0 +1,208 @@
+/* -*- Mode: C++; tab-width: 4; 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 the JavaScript 2 Prototype.
+ *
+ * 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 <math.h>
+#include "jsmath.h"
+
+namespace JavaScript {
+namespace JSMathClass {
+
+using namespace JSTypes;
+
+#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
+
+
+/*
+    Concept copied from SpiderMonkey -
+    fd_XXX needs to be defined either as a call to the fdlibm routine
+    or the native C library routine depending on the platform
+*/
+
+#define JS_USE_FDLIBM_MATH 0
+
+
+#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
+
+#endif
+
+JSValue math_abs(Context *cx, const JSValues& argv)
+{
+    if (argv.size() > 0) {
+        JSValue num = argv[1].toNumber();
+        if (num.isNaN()) return num;
+        if (num.isNegativeZero()) return kPositiveZero;
+        if (num.isNegativeInfinity()) return kPositiveInfinity;
+        if (num.f64 < 0) return JSValue(-num.f64);
+        return num;
+    }
+    return kUndefinedValue;
+}
+
+JSValue math_acos(Context *cx, const JSValues& argv)
+{
+    if (argv.size() > 0) {
+        JSValue num = argv[1].toNumber();
+        return JSValue(fd_acos(num.f64));
+    }
+    return kUndefinedValue;
+}
+
+JSValue math_asin(Context *cx, const JSValues& argv)
+{
+    if (argv.size() > 0) {
+        JSValue num = argv[1].toNumber();
+        return JSValue(fd_asin(num.f64));
+    }
+    return kUndefinedValue;
+}
+
+JSValue math_atan(Context *cx, const JSValues& argv)
+{
+    if (argv.size() > 0) {
+        JSValue num = argv[1].toNumber();
+        return JSValue(fd_atan(num.f64));
+    }
+    return kUndefinedValue;
+}
+
+JSValue math_atan2(Context *cx, const JSValues& argv)
+{
+    if (argv.size() > 1) {
+        JSValue num1 = argv[1].toNumber();
+        JSValue num2 = argv[1].toNumber();
+        return JSValue(fd_atan2(num1.f64, num2.f64));
+    }
+    return kUndefinedValue;
+}
+
+JSValue math_ceil(Context *cx, const JSValues& argv)
+{
+    if (argv.size() > 0) {
+        JSValue num = argv[1].toNumber();
+        return JSValue(fd_ceil(num.f64));
+    }
+    return kUndefinedValue;
+}
+
+struct MathFunctionEntry {
+    char *name;
+    JSNativeFunction::JSCode fn;
+} MathFunctions[] = {
+    { "abs",     math_abs },
+    { "acos",    math_acos },
+    { "asin",    math_asin },
+    { "atan",    math_atan },
+    { "atan2",   math_atan2 },
+    { "ceil",    math_acos },
+    { "acos",    math_acos },
+    { "acos",    math_acos }
+};
+
+struct MathConstantEntry {
+    char *name;
+    double value;
+} MathConstants[] = {
+    { "E",           M_E },
+    { "LOG2E",       M_LOG2E },
+    { "LOG10E",      M_LOG10E },
+    { "LN2",         M_LN2 },
+    { "LN10",        M_LN10 },
+    { "PI",          M_PI },
+    { "SQRT2",       M_SQRT2 },
+    { "SQRT1_2",     M_SQRT1_2 }
+};
+
+// There is no constructor for Math, we simply initialize
+//  the properties of the Math object
+void JSMath::initMathObject(JSScope *g)
+{
+    int i;
+    JSMath *m = new JSMath();
+    m->setClass(new JSString("Math"));
+
+    for (i = 0; i < sizeof(MathFunctions) / sizeof(MathFunctionEntry); i++)
+        m->setProperty(widenCString(MathFunctions[i].name), JSValue(new JSNativeFunction(MathFunctions[i].fn) ) );
+
+    for (i = 0; i < sizeof(MathConstants) / sizeof(MathConstantEntry); i++)
+        m->setProperty(widenCString(MathConstants[i].name), JSValue(MathConstants[i].value) );
+
+    g->setProperty(widenCString("Math"), JSValue(m));
+    
+}
+
+} /* JSMathClass */
+} /* JavaScript */

mozilla/js/js2/jsmath.h

@@ -0,0 +1,58 @@
+/* -*- Mode: C++; tab-width: 4; 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 the JavaScript 2 Prototype.
+ *
+ * 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 jsmath_h
+#define jsmath_h
+
+#include "jstypes.h"
+
+namespace JavaScript {
+namespace JSMathClass {
+
+    using JSTypes::JSObject;
+    using JSTypes::JSString;
+    using JSTypes::JSScope;
+
+    class JSMath : public JSObject {
+    private:
+        JSMath()    { }
+    public:
+        static void initMathObject(JSScope *g);
+    };
+    
+
+}   /* JSMathClass */
+}   /* JavaScript */
+
+
+#endif jsmath_h

mozilla/js/js2/jstypes.cpp

@@ -0,0 +1,775 @@
+/* -*- Mode: C++; tab-width: 4; 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 the JavaScript 2 Prototype.
+ *
+ * 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 "jsclasses.h"
+#include "numerics.h"
+#include "icodegenerator.h"
+#include "interpreter.h"
+
+namespace JavaScript {
+namespace JSTypes {
+
+using namespace JSClasses;
+using namespace Interpreter;
+
+/********** Object Object Stuff **************************/
+
+JSValue object_toString(Context *cx, const JSValues& argv)
+{
+    if (argv.size() > 0) {
+        JSString *s = new JSString("[object ");
+        JSValue theThis = argv[0];
+        ASSERT(theThis.isObject());
+        s->append(theThis.object->getClass());
+        s->append("]");
+        return JSValue(s);
+    }
+    return kUndefinedValue;
+}
+
+JSValue objectConstructor(Context *cx, const JSValues& argv)
+{
+    ASSERT(argv.size() > 0);
+    JSValue theThis = argv[0];
+    
+    // the prototype and class have been established already
+
+    return theThis;
+}
+
+struct ObjectFunctionEntry {
+    char *name;
+    JSNativeFunction::JSCode fn;
+} ObjectFunctions[] = {
+    { "toString",     object_toString },
+};
+
+
+JSObject *JSObject::objectPrototypeObject = JSObject::initJSObject();
+String JSObject::ObjectString = widenCString("Object");
+
+// This establishes the ur-prototype, there's a timing issue
+// here - the JSObject static initializers have to run before
+// any other JSObject objects are constructed.
+JSObject *JSObject::initJSObject()
+{
+    JSObject *result = new JSObject();
+
+    for (int i = 0; i < sizeof(ObjectFunctions) / sizeof(ObjectFunctionEntry); i++)
+        result->setProperty(widenCString(ObjectFunctions[i].name), JSValue(new JSNativeFunction(ObjectFunctions[i].fn) ) );
+
+    return result;
+}
+
+// Install the 'Object' constructor into the scope, mostly irrelevant since making 
+// a new JSObject does all the work of setting the prototype and [[class]] values.
+void JSObject::initObjectObject(JSScope *g)
+{
+    JSNativeFunction *objCon = new JSNativeFunction(objectConstructor);
+
+    objCon->setProperty(widenCString("prototype"), JSValue(objectPrototypeObject));
+    
+
+
+
+    g->setProperty(ObjectString, JSValue(objCon));
+}
+
+
+
+/********** Function Object Stuff **************************/
+
+// An empty function that returns undefined
+JSValue functionPrototypeFunction(Context *cx, const JSValues& argv)
+{
+    return kUndefinedValue;
+}
+
+
+JSValue function_constructor(Context *cx, const JSValues& argv)
+{
+    // build a function from the arguments into the this.
+    ASSERT(argv.size() > 0);
+    JSValue theThis = argv[0];
+    ASSERT(theThis.isObject());
+
+    if (argv.size() == 2) {        
+        JSValue s = JSValue::valueToString(argv[1]);
+        theThis = new JSFunction(cx->compile((String)(*s.string)));
+    }
+
+    return theThis;
+}
+
+JSValue function_toString(Context *cx, const JSValues& argv)
+{
+    return JSValue(new JSString("function XXX() { }" ));
+}
+JSValue function_apply(Context *cx, const JSValues& argv)
+{
+    // XXX
+    return kUndefinedValue;
+}
+JSValue function_call(Context *cx, const JSValues& argv)
+{
+    // XXX
+    return kUndefinedValue;
+}
+
+
+
+String JSFunction::FunctionString = widenCString("Function");
+JSObject *JSFunction::functionPrototypeObject = NULL;   // the 'original Function prototype object'
+
+struct FunctionFunctionEntry {
+    char *name;
+    JSNativeFunction::JSCode fn;
+} FunctionFunctions[] = {
+    { "constructor",    function_constructor },
+    { "toString",       function_toString },
+    { "apply",          function_apply },
+    { "call",           function_call },
+};
+
+void JSFunction::initFunctionObject(JSScope *g)
+{
+    // first build the Function Prototype Object
+    functionPrototypeObject = new JSNativeFunction(functionPrototypeFunction);
+    for (int i = 0; i < sizeof(FunctionFunctions) / sizeof(FunctionFunctionEntry); i++)
+        functionPrototypeObject->setProperty(widenCString(FunctionFunctions[i].name), JSValue(new JSNativeFunction(FunctionFunctions[i].fn) ) );
+
+    // now the Function Constructor Object
+    JSNativeFunction *functionConstructorObject = new JSNativeFunction(function_constructor);
+    functionConstructorObject->setPrototype(functionPrototypeObject);
+    functionConstructorObject->setProperty(widenCString("length"), JSValue((int32)1));
+    functionConstructorObject->setProperty(widenCString("prototype"), JSValue(functionPrototypeObject));
+
+    // This is interesting - had to use defineVariable here to specify a type because
+    // when left as Any_Type (via setProperty), the Function predefined type interacted
+    // badly with this value. (I think setProperty perhaps should have reset the entry
+    // in mTypes) (?)
+    g->defineVariable(FunctionString, &Function_Type, JSValue(functionConstructorObject));
+}
+
+/**************************************************************************************/
+
+JSType Any_Type = JSType(widenCString("any"), NULL);
+JSType Integer_Type = JSType(widenCString("Integer"), &Any_Type);
+JSType Number_Type = JSType(widenCString("Number"), &Integer_Type);
+JSType Character_Type = JSType(widenCString("Character"), &Any_Type);
+JSType String_Type = JSType(widenCString("String"), &Character_Type);
+JSType Function_Type = JSType(widenCString("Function"), &Any_Type);
+JSType Array_Type = JSType(widenCString("Array"), &Any_Type);
+JSType Type_Type = JSType(widenCString("Type"), &Any_Type);
+JSType Boolean_Type = JSType(widenCString("Boolean"), &Any_Type);
+JSType Null_Type = JSType(widenCString("Null"), &Any_Type);
+JSType Void_Type = JSType(widenCString("void"), &Any_Type);
+JSType None_Type = JSType(widenCString("none"), &Any_Type);
+
+
+#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)
+
+
+// the canonical undefined value, etc.
+const JSValue kUndefinedValue;
+const JSValue kNaNValue = JSValue(nan);
+const JSValue kTrueValue = JSValue(true);
+const JSValue kFalseValue = JSValue(false);
+const JSValue kNullValue = JSValue((JSObject*)NULL);
+const JSValue kNegativeZero = JSValue(-0.0);
+const JSValue kPositiveZero = JSValue(0.0);
+const JSValue kNegativeInfinity = JSValue(negativeInfinity);
+const JSValue kPositiveInfinity = JSValue(positiveInfinity);
+
+
+const JSType *JSValue::getType() const
+{
+    switch (tag) {
+    case JSValue::i32_tag:
+        return &Integer_Type;
+    case JSValue::u32_tag:
+        return &Integer_Type;
+    case JSValue::integer_tag:
+        return &Integer_Type;
+    case JSValue::f64_tag:
+        return &Number_Type;
+    case JSValue::object_tag:
+        {
+            //
+            // XXX why isn't there a class for Object? XXX
+            //
+            JSClass *clazz = dynamic_cast<JSClass *>(object->getType());
+            if (clazz) 
+                return clazz;
+            else
+                return &Any_Type;
+        }
+    case JSValue::array_tag:
+        return &Array_Type;
+    case JSValue::function_tag:
+        return &Function_Type;
+    case JSValue::string_tag:
+        return &String_Type;
+    case JSValue::boolean_tag:
+        return &Boolean_Type;
+    case JSValue::undefined_tag:
+        return &Void_Type;
+    case JSValue::type_tag:
+        return &Type_Type;
+    default:
+        NOT_REACHED("Bad tag");
+        return &None_Type;
+    }
+}
+
+bool JSValue::isNaN() const
+{
+    ASSERT(isNumber());
+    switch (tag) {
+    case i32_tag:
+    case u32_tag:
+        return false;
+    case integer_tag:
+    case f64_tag:
+        return JSDOUBLE_IS_NaN(f64);
+    default:
+        NOT_REACHED("Broken compiler?");
+        return true;
+    }
+}
+              
+bool JSValue::isNegativeInfinity() const
+{
+    ASSERT(isNumber());
+    switch (tag) {
+    case i32_tag:
+    case u32_tag:
+        return false;
+    case integer_tag:
+    case f64_tag:
+        return (f64 < 0) && JSDOUBLE_IS_INFINITE(f64);
+    default:
+        NOT_REACHED("Broken compiler?");
+        return true;
+    }
+}
+              
+bool JSValue::isPositiveInfinity() const
+{
+    ASSERT(isNumber());
+    switch (tag) {
+    case i32_tag:
+    case u32_tag:
+        return false;
+    case integer_tag:
+    case f64_tag:
+        return (f64 > 0) && JSDOUBLE_IS_INFINITE(f64);
+    default:
+        NOT_REACHED("Broken compiler?");
+        return true;
+    }
+}
+              
+bool JSValue::isNegativeZero() const
+{
+    ASSERT(isNumber());
+    switch (tag) {
+    case i32_tag:
+    case u32_tag:
+        return false;
+    case integer_tag:
+    case f64_tag:
+        return JSDOUBLE_IS_NEGZERO(f64);
+    default:
+        NOT_REACHED("Broken compiler?");
+        return true;
+    }
+}
+              
+bool JSValue::isPositiveZero() const
+{
+    ASSERT(isNumber());
+    switch (tag) {
+    case i32_tag:
+        return (i32 == 0);
+    case u32_tag:
+        return (u32 == 0);
+    case integer_tag:
+    case f64_tag:
+        return (f64 == 0.0) && !JSDOUBLE_IS_NEGZERO(f64);
+    default:
+        NOT_REACHED("Broken compiler?");
+        return true;
+    }
+}
+              
+int JSValue::operator==(const JSValue& value) const
+{
+    if (this->tag == value.tag) {
+        #define CASE(T) case T##_tag: return (this->T == value.T)
+        switch (tag) {
+        CASE(i8); CASE(u8);
+        CASE(i16); CASE(u16);
+        CASE(i32); CASE(u32); CASE(f32);
+        CASE(i64); CASE(u64); CASE(f64);
+        CASE(object); CASE(array); CASE(function); CASE(string);
+        CASE(type); CASE(boolean);
+        #undef CASE
+        case integer_tag : return (this->f64 == value.f64);
+        // question:  are all undefined values equal to one another?
+        case undefined_tag: return 1;
+        }
+    }
+    return 0;
+}
+
+Formatter& operator<<(Formatter& f, JSObject& obj)
+{
+    obj.printProperties(f);
+    return f;
+}
+
+void JSObject::printProperties(Formatter& f)
+{
+    for (JSProperties::const_iterator i = mProperties.begin(); i != mProperties.end(); i++) {
+        f << (*i).first << " : " << (*i).second;
+        f << "\n";
+    }
+}
+
+Formatter& operator<<(Formatter& f, const JSValue& value)
+{
+    switch (value.tag) {
+    case JSValue::i32_tag:
+        f << float64(value.i32);
+        break;
+    case JSValue::u32_tag:
+        f << float64(value.u32);
+        break;
+    case JSValue::integer_tag:
+    case JSValue::f64_tag:
+        f << value.f64;
+        break;
+    case JSValue::object_tag:
+        printFormat(f, "Object @ 0x%08X\n", value.object);
+        f << *value.object;
+        break;
+    case JSValue::array_tag:
+        printFormat(f, "Array @ 0x%08X", value.object);
+        break;
+    case JSValue::function_tag:
+        printFormat(f, "Function @ 0x%08X", value.object);
+        break;
+    case JSValue::string_tag:
+        f << *value.string;
+        break;
+    case JSValue::boolean_tag:
+        f << ((value.boolean) ? "true" : "false");
+        break;
+    case JSValue::undefined_tag:
+        f << "undefined";
+        break;
+    case JSValue::type_tag:
+        printFormat(f, "Type @ 0x%08X\n", value.type);
+        f << *value.type;
+        break;
+    default:
+        NOT_REACHED("Bad tag");
+    }
+    return f;
+}
+
+JSValue JSValue::toPrimitive(ECMA_type /*hint*/) const
+{
+    JSObject *obj;
+    switch (tag) {
+    case i32_tag:
+    case u32_tag:
+    case integer_tag:
+    case f64_tag:
+    case string_tag:
+    case boolean_tag:
+    case undefined_tag:
+        return *this;
+
+    case object_tag:
+        obj = object;
+        break;
+    case array_tag:
+        obj = array;
+        break;
+    case function_tag:
+        obj = function;
+        break;
+
+    default:
+        NOT_REACHED("Bad tag");
+        return kUndefinedValue;
+    }
+
+    const JSValue &toString = obj->getProperty(widenCString("toString"));
+    if (toString.isObject()) {
+        if (toString.isFunction()) {
+        }
+        else    // right? The spec doesn't say
+            throw new JSException("Runtime error from toPrimitive");    // XXX
+    }
+
+    const JSValue &valueOf = obj->getProperty(widenCString("valueOf"));
+    if (!valueOf.isObject())
+        throw new JSException("Runtime error from toPrimitive");    // XXX
+    
+    return kUndefinedValue;
+    
+}
+
+
+JSValue JSValue::valueToString(const JSValue& value) // can assume value is not a string
+{
+    const char* chrp;
+    char buf[dtosStandardBufferSize];
+    switch (value.tag) {
+    case i32_tag:
+        chrp = doubleToStr(buf, dtosStandardBufferSize, value.i32, dtosStandard, 0);
+        break;
+    case u32_tag:
+        chrp = doubleToStr(buf, dtosStandardBufferSize, value.u32, dtosStandard, 0);
+        break;
+    case integer_tag:
+    case f64_tag:
+        chrp = doubleToStr(buf, dtosStandardBufferSize, value.f64, dtosStandard, 0);
+        break;
+    case object_tag:
+        chrp = "object";
+        break;
+    case array_tag:
+        chrp = "array";
+        break;
+    case function_tag:
+        chrp = "function";
+        break;
+    case string_tag:
+        return value;
+    case boolean_tag:
+        chrp = (value.boolean) ? "true" : "false";
+        break;
+    case undefined_tag:
+        chrp = "undefined";
+        break;
+    default:
+        NOT_REACHED("Bad tag");
+    }
+    return JSValue(new JSString(chrp));
+}
+
+JSValue JSValue::valueToNumber(const JSValue& value) // can assume value is not a number
+{
+    switch (value.tag) {
+    case i32_tag:
+        return JSValue((float64)value.i32);
+    case u32_tag:
+        return JSValue((float64)value.u32);
+    case integer_tag:
+    case f64_tag:
+        return value;
+    case string_tag: 
+        {
+            JSString* str = value.string;
+            const char16 *numEnd;
+	        double d = stringToDouble(str->begin(), str->end(), numEnd);
+            return JSValue(d);
+        }
+    case object_tag:
+    case array_tag:
+    case function_tag:
+        // XXX more needed :
+        // toNumber(toPrimitive(hint Number))
+        return kUndefinedValue;
+    case boolean_tag:
+        return JSValue((value.boolean) ? 1.0 : 0.0);
+    case undefined_tag:
+        return kNaNValue;
+    default:
+        NOT_REACHED("Bad tag");
+        return kUndefinedValue;
+    }
+}
+
+JSValue JSValue::valueToInteger(const JSValue& value)
+{
+    JSValue result = valueToNumber(value);
+    ASSERT(result.tag == f64_tag);
+    result.tag = i64_tag;
+    bool neg = (result.f64 < 0);
+    result.f64 = floor((neg) ? -result.f64 : result.f64);
+    result.f64 = (neg) ? -result.f64 : result.f64;
+    return result;
+}
+
+
+JSValue JSValue::valueToBoolean(const JSValue& value)
+{
+    switch (value.tag) {
+    case i32_tag:
+        return JSValue(value.i32 != 0);
+    case u32_tag:
+        return JSValue(value.u32 != 0);
+    case integer_tag:
+    case f64_tag:
+        return JSValue(!(value.f64 == 0.0) || JSDOUBLE_IS_NaN(value.f64));
+    case string_tag: 
+        return JSValue(value.string->length() != 0);
+    case boolean_tag:
+        return value;
+    case object_tag:
+    case array_tag:
+    case function_tag:
+        return kTrueValue;
+    case undefined_tag:
+        return kFalseValue;
+    default:
+        NOT_REACHED("Bad tag");
+        return kUndefinedValue;
+    }
+}
+
+
+static const double two32 = 4294967296.0;
+static const double two31 = 2147483648.0;
+
+JSValue JSValue::valueToInt32(const JSValue& value)
+{
+    double d;
+    switch (value.tag) {
+    case i32_tag:
+        return value;
+    case u32_tag:
+        d = value.u32;
+        break;
+    case integer_tag:
+    case f64_tag:
+        d = value.f64;
+        break;
+    case string_tag: 
+        {
+            JSString* str = value.string;
+            const char16 *numEnd;
+	        d = stringToDouble(str->begin(), str->end(), numEnd);
+        }
+        break;
+    case boolean_tag:
+        return JSValue((int32)((value.boolean) ? 1 : 0));
+    case object_tag:
+    case array_tag:
+    case undefined_tag:
+        // toNumber(toPrimitive(hint Number))
+        return kUndefinedValue;
+    default:
+        NOT_REACHED("Bad tag");
+        return kUndefinedValue;
+    }
+    if ((d == 0.0) || !JSDOUBLE_IS_FINITE(d) )
+        return JSValue((int32)0);
+    d = fmod(d, two32);
+    d = (d >= 0) ? d : d + two32;
+    if (d >= two31)
+	    return JSValue((int32)(d - two32));
+    else
+	    return JSValue((int32)d);
+    
+}
+
+JSValue JSValue::valueToUInt32(const JSValue& value)
+{
+    double d;
+    switch (value.tag) {
+    case i32_tag:
+        return JSValue((uint32)value.i32);
+    case u32_tag:
+        return value;
+    case f64_tag:
+        d = value.f64;
+        break;
+    case string_tag: 
+        {
+            JSString* str = value.string;
+            const char16 *numEnd;
+	        d = stringToDouble(str->begin(), str->end(), numEnd);
+        }
+        break;
+    case boolean_tag:
+        return JSValue((uint32)((value.boolean) ? 1 : 0));
+    case object_tag:
+    case array_tag:
+    case undefined_tag:
+        // toNumber(toPrimitive(hint Number))
+        return kUndefinedValue;
+    default:
+        NOT_REACHED("Bad tag");
+        return kUndefinedValue;
+    }
+    if ((d == 0.0) || !JSDOUBLE_IS_FINITE(d))
+        return JSValue((uint32)0);
+    bool neg = (d < 0);
+    d = floor(neg ? -d : d);
+    d = neg ? -d : d;
+    d = fmod(d, two32);
+    d = (d >= 0) ? d : d + two32;
+    return JSValue((uint32)d);
+}
+
+
+JSValue JSValue::convert(JSType *toType)
+{
+    if (toType == &Any_Type)    // yuck, something wrong with this
+                                // maybe the base types should be 
+                                // a family of classes, not just instances
+                                // of JSType ???
+        return *this;
+    else if (toType == &Integer_Type)
+        return valueToInteger(*this);
+    else {
+        JSClass *toClass = dynamic_cast<JSClass *>(toType);
+        if (toClass) {
+            if (tag == object_tag) {
+                JSClass *fromClass = dynamic_cast<JSClass *>(object->getType());
+                if (fromClass) {
+                    while (fromClass != toClass) {
+                        fromClass = fromClass->getSuperClass();
+                        if (fromClass == NULL)
+                            throw new JSException("Can't cast to unrelated class");
+                    }
+                    return *this;
+                }
+                else
+                    throw new JSException("Can't cast a generic object to a class");
+            }
+            else
+                throw new JSException("Can't cast a non-object to a class");
+        }
+    }
+    return kUndefinedValue;
+}
+
+
+JSFunction::~JSFunction()
+{
+    delete mICode;
+}
+
+JSString::JSString(const String& str)
+{
+    size_t n = str.size();
+    resize(n);
+    traits_type::copy(begin(), str.begin(), n);
+}
+
+JSString::JSString(const String* str)
+{
+    size_t n = str->size();
+    resize(n);
+    traits_type::copy(begin(), str->begin(), n);
+}
+
+JSString::JSString(const char* str)
+{
+    size_t n = ::strlen(str);
+    resize(n);
+    std::transform(str, str + n, begin(), JavaScript::widen);
+}
+
+void JSString::append(const char* str)
+{
+    size_t n = ::strlen(str);
+    size_t oldSize = size();
+    resize(oldSize + n);
+    std::transform(str, str + n, begin() + oldSize, JavaScript::widen);
+}
+
+void JSString::append(const JSStringBase* str)
+{
+    size_t n = str->size();
+    size_t oldSize = size();
+    resize(oldSize + n);
+    traits_type::copy(begin() + oldSize, str->begin(), n);
+}
+
+JSString::operator String()
+{
+    return String(begin(), size());
+}
+
+
+// # of sub-type relationship between this type and the other type 
+// (== MAX_INT if other is not a base type)
+
+int32 JSType::distance(const JSType *other) const
+{
+    if (other == this) 
+        return 0; 
+    if (mBaseType == NULL)
+        return NoRelation;
+    int32 baseDistance = mBaseType->distance(other);
+    if (baseDistance != NoRelation)
+        ++baseDistance;
+    return baseDistance;
+}
+
+
+} /* namespace JSTypes */    
+} /* namespace JavaScript */

mozilla/js/js2/jstypes.h

@@ -0,0 +1,579 @@
+/* -*- Mode: C++; tab-width: 4; 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 the JavaScript 2 Prototype.
+ *
+ * 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 jstypes_h
+#define jstypes_h
+
+#include "utilities.h"
+#include "gc_allocator.h"
+#include <vector>
+#include <map>
+#include <stack>
+
+
+/* forward declare classes from JavaScript::ICG */
+namespace JavaScript {
+namespace ICG {
+    class ICodeModule;
+} /* namespace ICG */
+namespace Interpreter {
+    class Context;
+} /* namespace Interpreter */
+} /* namespace JavaScript */
+
+namespace JavaScript {
+namespace JSTypes {
+
+    using ICG::ICodeModule;
+    using Interpreter::Context;
+    
+    class JSObject;
+    class JSArray;
+    class JSFunction;
+    class JSScope;
+    class JSString;
+    class JSType;
+    class Context;
+    
+    /**
+     * All JavaScript data types.
+     */        
+    struct JSValue {
+        union {
+            int8 i8;
+            uint8 u8;
+            int16 i16;
+            uint16 u16;
+            int32 i32;
+            uint32 u32;
+            int64 i64;
+            uint64 u64;
+            float32 f32;
+            float64 f64;
+            JSObject* object;
+            JSArray* array;
+            JSFunction *function;
+            JSString *string;
+            JSType *type;
+            bool boolean;
+        };
+        
+        /* These are the ECMA types, for use in 'toPrimitive' calls */
+        enum ECMA_type {
+            Undefined, Null, Boolean, Number, Object, String, 
+            NoHint
+        };
+
+        enum {
+            i8_tag, u8_tag,
+            i16_tag, u16_tag,
+            i32_tag, u32_tag,
+            i64_tag, u64_tag,
+            f32_tag, f64_tag,
+            integer_tag,
+            object_tag, array_tag, function_tag, string_tag, boolean_tag, type_tag,
+            undefined_tag
+        } tag;
+        
+        JSValue() : f64(0.0), tag(undefined_tag) {}
+        explicit JSValue(int32 i32) : i32(i32), tag(i32_tag) {}
+        explicit JSValue(uint32 u32) : u32(u32), tag(u32_tag) {}
+        explicit JSValue(float64 f64) : f64(f64), tag(f64_tag) {}
+        explicit JSValue(JSObject* object) : object(object), tag(object_tag) {}
+        explicit JSValue(JSArray* array) : array(array), tag(array_tag) {}
+        explicit JSValue(JSFunction* function) : function(function), tag(function_tag) {}
+        explicit JSValue(JSString* string) : string(string), tag(string_tag) {}
+        explicit JSValue(bool boolean) : boolean(boolean), tag(boolean_tag) {}
+        explicit JSValue(JSType* type) : type(type), tag(type_tag) {}
+
+        int32& operator=(int32 i32)                     { return (tag = i32_tag, this->i32 = i32); }
+        uint32& operator=(uint32 u32)                   { return (tag = u32_tag, this->u32 = u32); }
+        float64& operator=(float64 f64)                 { return (tag = f64_tag, this->f64 = f64); }
+        JSObject*& operator=(JSObject* object)          { return (tag = object_tag, this->object = object); }
+        JSArray*& operator=(JSArray* array)             { return (tag = array_tag, this->array = array); }
+        JSFunction*& operator=(JSFunction* function)    { return (tag = function_tag, this->function = function); }
+        JSString*& operator=(JSString* string)          { return (tag = string_tag, this->string = string); }
+        bool& operator=(bool boolean)                   { return (tag = boolean_tag, this->boolean = boolean); }
+        JSType*& operator=(JSType* type)                { return (tag = type_tag, this->type = type); }
+        
+        bool isFunction() const                         { return (tag == function_tag); }
+        bool isObject() const                           { return ((tag == object_tag) || (tag == function_tag) || (tag == array_tag) || (tag == type_tag)); }
+        bool isString() const                           { return (tag == string_tag); }
+        bool isBoolean() const                          { return (tag == boolean_tag); }
+        bool isNumber() const                           { return (tag == f64_tag) || (tag == integer_tag); }
+
+                                                        /* this is correct wrt ECMA, The i32 & u32 kinds
+                                                           will have to be converted (to doubles?) anyway because
+                                                           we can't have overflow happening in generic arithmetic */
+
+        bool isUndefined() const                        { return (tag == undefined_tag); }
+        bool isNull() const                             { return ((tag == object_tag) && (this->object == NULL)); }
+        bool isNaN() const;
+        bool isNegativeInfinity() const;
+        bool isPositiveInfinity() const;
+        bool isNegativeZero() const;
+        bool isPositiveZero() const;
+        bool isType() const                             { return (tag == type_tag); }
+
+        JSValue toString() const                        { return (isString() ? *this : valueToString(*this)); }
+        JSValue toNumber() const                        { return (isNumber() ? *this : valueToNumber(*this)); }
+        JSValue toInt32() const                         { return ((tag == i32_tag) ? *this : valueToInt32(*this)); }
+        JSValue toUInt32() const                        { return ((tag == u32_tag) ? *this : valueToUInt32(*this)); }
+        JSValue toBoolean() const                       { return ((tag == boolean_tag) ? *this : valueToBoolean(*this)); }
+
+        JSValue toPrimitive(ECMA_type hint = NoHint) const;
+
+        JSValue convert(JSType *toType);
+
+        
+        static JSValue valueToString(const JSValue& value);
+        static JSValue valueToNumber(const JSValue& value);
+        static JSValue valueToInteger(const JSValue& value);
+        static JSValue valueToInt32(const JSValue& value);
+        static JSValue valueToUInt32(const JSValue& value);
+        static JSValue valueToBoolean(const JSValue& value);
+
+
+        const JSType *getType() const;                  // map from tag type to JS2 type
+
+        int operator==(const JSValue& value) const;
+    };
+
+    Formatter& operator<<(Formatter& f, const JSValue& value);
+
+#if defined(XP_MAC)
+    // copied from default template parameters in map.
+    typedef gc_allocator<std::pair<const String, JSValue> > gc_map_allocator;
+#elif defined(XP_UNIX)
+    // FIXME: in libg++, they assume the map's allocator is a byte allocator,
+    // which is wrapped in a simple_allocator. this is crap.
+    typedef char _Char[1];
+    typedef gc_allocator<_Char> gc_map_allocator;
+#elif defined(_WIN32)
+    // FIXME: MSVC++'s notion. this is why we had to add _Charalloc().
+    typedef gc_allocator<JSValue> gc_map_allocator;
+#endif        
+        
+    /**
+     * GC-scannable array of values.
+     */
+    typedef std::vector<JSValue, gc_allocator<JSValue> > JSValues;
+
+    extern const JSValue kUndefinedValue;
+    extern const JSValue kNaNValue;
+    extern const JSValue kTrueValue;
+    extern const JSValue kFalseValue;
+    extern const JSValue kNullValue;
+    extern const JSValue kNegativeZero;
+    extern const JSValue kPositiveZero;
+    extern const JSValue kNegativeInfinity;
+    extern const JSValue kPositiveInfinity;
+
+    extern JSType Any_Type;
+    extern JSType Integer_Type;
+    extern JSType Number_Type;
+    extern JSType Character_Type;
+    extern JSType String_Type;
+    extern JSType Function_Type;
+    extern JSType Array_Type;
+    extern JSType Type_Type;
+    extern JSType Boolean_Type;
+    extern JSType Null_Type;
+    extern JSType Void_Type;
+    extern JSType None_Type;
+
+    typedef std::map<String, JSValue, std::less<String>, gc_map_allocator> JSProperties;
+
+    /**
+     * Basic behavior of all JS objects, mapping a name to a value,
+     * with prototype-based inheritance.
+     */
+    class JSObject : public gc_base {
+    protected:
+        JSProperties mProperties;
+        JSObject* mPrototype;
+        JSType* mType;
+        JSString* mClass;       // this is the internal [[Class]] property
+
+        static JSObject *initJSObject();
+        static String ObjectString;
+        static JSObject *objectPrototypeObject;
+
+        void init(JSObject* prototype);
+
+    public:
+        JSObject()                      { init(objectPrototypeObject); }
+        JSObject(JSValue &constructor)  { init(constructor.object->getProperty(widenCString("prototype")).object); }
+        JSObject(JSObject *prototype)   { init(prototype); }
+    
+        static void initObjectObject(JSScope *g);
+
+        bool hasProperty(const String& name)
+        {
+            return (mProperties.count(name) != 0);
+        }
+
+        const JSValue& getProperty(const String& name)
+        {
+            JSProperties::const_iterator i = mProperties.find(name);
+            if (i != mProperties.end())
+                return i->second;
+            if (mPrototype)
+                return mPrototype->getProperty(name);
+            return kUndefinedValue;
+        }
+
+        // return the property AND the object it's found in
+        // (would rather return references, but couldn't get that to work)
+        const JSValue getReference(JSValue &prop, const String& name)
+        {
+            JSProperties::const_iterator i = mProperties.find(name);
+            if (i != mProperties.end()) {
+                prop = i->second;
+                return JSValue(this);
+            }
+            if (mPrototype)
+                return mPrototype->getReference(prop, name);
+            return kUndefinedValue;
+        }
+        
+        JSValue& setProperty(const String& name, const JSValue& value)
+        {
+            return (mProperties[name] = value);
+        }
+        
+        const JSValue& deleteProperty(const String& name)
+        {
+            JSProperties::iterator i = mProperties.find(name);
+            if (i != mProperties.end()) {
+                mProperties.erase(i);
+                return kTrueValue;
+            }
+            if (mPrototype)
+                return mPrototype->deleteProperty(name);
+            return kFalseValue;
+        }
+
+        void setPrototype(JSObject* prototype)
+        {
+            mPrototype = prototype;
+        }
+        
+        JSObject* getPrototype()
+        {
+            return mPrototype;
+        }
+
+        JSType* getType()
+        {
+            return mType;
+        }
+
+        JSString* getClass()
+        {
+            return mClass;
+        }
+
+        void setClass(JSString* s)
+        {
+            mClass = s;
+        }
+
+        virtual void printProperties(Formatter& f);
+    };
+    
+    Formatter& operator<<(Formatter& f, JSObject& obj);
+
+    /**
+     * Private representation of a JavaScript array.
+     */
+    class JSArray : public JSObject {
+        JSValues elements;
+    public:
+        JSArray() : elements(1) {}
+        JSArray(uint32 size) : elements(size) {}
+        JSArray(const JSValues &v) : elements(v) {}
+            
+        uint32 length()
+        {
+            return elements.size();
+        }
+            
+        JSValue& operator[](const JSValue& index)
+        {
+            // for now, we can only handle f64 index values.
+            uint32 n = (uint32)index.f64;
+            // obviously, a sparse representation might be better.
+            uint32 size = elements.size();
+            if (n >= size) expand(n, size);
+            return elements[n];
+        }
+            
+        JSValue& operator[](uint32 n)
+        {
+            // obviously, a sparse representation might be better.
+            uint32 size = elements.size();
+            if (n >= size) expand(n, size);
+            return elements[n];
+        }
+            
+        void resize(uint32 size)
+        {
+            elements.resize(size);
+        }
+            
+    private:
+        void expand(uint32 n, uint32 size)
+        {
+            do {
+                size *= 2;
+            } while (n >= size);
+            elements.resize(size);
+        }
+    };
+        
+    /**
+     * Private representation of a JS function. This simply
+     * holds a reference to the iCode module that is the
+     * compiled code of the function.
+     */
+    class JSFunction : public JSObject {
+        static String FunctionString;
+        static JSObject *functionPrototypeObject;
+        ICodeModule* mICode;
+    protected:
+        JSFunction() : mICode(0) {}
+
+   	    typedef JavaScript::gc_traits_finalizable<JSFunction> traits;
+	    typedef gc_allocator<JSFunction, traits> allocator;
+		
+    public:
+        static void JSFunction::initFunctionObject(JSScope *g);
+
+        JSFunction(ICodeModule* iCode);
+        ~JSFunction();
+    
+        void* operator new(size_t) { return allocator::allocate(1); }
+
+        ICodeModule* getICode()    { return mICode; }
+        virtual bool isNative()    { return false; }
+    };
+
+    class JSNativeFunction : public JSFunction {
+    public:
+        typedef JSValue (*JSCode)(Context *cx, const JSValues& argv);
+        JSCode mCode;
+        JSNativeFunction(JSCode code) : mCode(code) {}
+        virtual bool isNative()    { return true; }
+    };
+        
+    class JSBinaryOperator : public JSFunction {
+    public:
+        typedef JSValue (*JSBinaryCode)(const JSValue& arg1, const JSValue& arg2);
+        JSBinaryCode mCode;
+        JSBinaryOperator(JSBinaryCode code) : mCode(code) {}
+        virtual bool isNative()    { return true; }
+    };
+        
+#ifndef STLPORT
+# if defined(XP_UNIX)
+    // bastring.cc defines a funky operator new that assumes a byte-allocator.
+    typedef string_char_traits<char16> JSCharTraits;
+    typedef gc_allocator<_Char> JSStringAllocator;
+# else
+    typedef std::char_traits<char16> JSCharTraits;
+    typedef gc_allocator<char16> JSStringAllocator;
+# endif
+#else
+    typedef std::char_traits<char16> JSCharTraits;
+    typedef gc_allocator<char16> JSStringAllocator;
+#endif
+
+    typedef std::basic_string<char16, JSCharTraits, JSStringAllocator> JSStringBase;
+
+    /**
+     * Garbage collectable UNICODE string.
+     */
+    class JSString : public JSStringBase, public gc_base {
+    public:
+        JSString() {}
+        explicit JSString(const JSStringBase& str) : JSStringBase(str) {}
+        explicit JSString(const JSStringBase* str) : JSStringBase(*str) {}
+        explicit JSString(const String& str);
+        explicit JSString(const String* str);
+        explicit JSString(const char* str);
+
+        operator String();
+
+        void append(const char* str);
+        void append(const JSStringBase* str);
+    };
+
+    class JSException : public gc_base {
+    public:
+        JSException(char *mess) : value(JSValue(new JSString(mess))) { }
+        JSException(JSValue v) : value(v) { }
+        JSValue value;
+    };
+    
+    inline Formatter& operator<<(Formatter& f, const JSString& str)
+    {
+        printString(f, str.begin(), str.end());
+        return f;
+    }
+
+   /**
+     * Provides a set of nested scopes. 
+     */
+    class JSScope : public JSObject {
+    protected:
+        JSScope* mParent;
+        JSProperties mTypes;
+    public:
+        JSScope(JSScope* parent = 0, JSObject* prototype = 0)
+            : mParent(parent)
+        {
+            if (prototype)
+                setPrototype(prototype);
+        }
+        
+        JSScope* getParent()
+        {
+            return mParent;
+        }
+    
+        bool isDefined(const String& name)
+        {
+            if (hasProperty(name))
+                return true;
+            if (mParent)
+                return mParent->isDefined(name);
+            return false;
+        }
+        
+        const JSValue& getVariable(const String& name)
+        {
+            const JSValue& ret = getProperty(name);
+            if (ret.isUndefined() && mParent) 
+                return mParent->getVariable(name);
+            return ret;
+        }
+        
+        JSValue& setVariable(const String& name, const JSValue& value)
+        {
+            return (mProperties[name] = value);
+        }
+        
+        JSValue& defineVariable(const String& name, JSType* type, const JSValue& value)
+        {
+            if (type != &Any_Type)
+                mTypes[name] = type;
+            return (mProperties[name] = value);
+        }
+
+        JSValue& defineVariable(const String& name, JSType* type)
+        {
+            if (type != &Any_Type)
+                mTypes[name] = type;
+            return (mProperties[name] = kUndefinedValue);
+        }
+
+        void setType(const String& name, JSType* type)
+        {
+            // only type variables that are defined in this scope.
+            JSProperties::iterator i = mProperties.find(name);
+            if (i != mProperties.end())
+                mTypes[name] = type;
+            else
+                if (mParent)
+                    mParent->setType(name, type);
+        }
+
+        JSType* getType(const String& name)
+        {
+            JSType* result = &Any_Type;
+            // only consider types for variables defined in this scope.
+            JSProperties::const_iterator i = mProperties.find(name);
+            if (i != mProperties.end()) {
+                i = mTypes.find(name);
+                if (i != mTypes.end())
+                    result = i->second.type;
+            } else {
+                // see if variable is defined in parent scope.
+                if (mParent)
+                    result = mParent->getType(name);
+            }
+            return result;
+        }
+        
+        JSValue& defineFunction(const String& name, ICodeModule* iCode)
+        {
+            JSValue value(new JSFunction(iCode));
+            return defineVariable(name, &Function_Type, value);
+        }
+
+        JSValue& defineNativeFunction(const String& name, JSNativeFunction::JSCode code)
+        {
+            JSValue value(new JSNativeFunction(code));
+            return defineVariable(name, &Function_Type, value);
+        }
+    };
+
+    class JSType : public JSObject {
+    protected:
+        String mName;
+        JSType *mBaseType;
+    public:
+        JSType(const String &name, JSType *baseType) : mName(name), mBaseType(baseType)
+        {
+            mType = &Type_Type;
+        }
+
+        enum { NoRelation = 0x7FFFFFFF };
+
+        const String& getName() const { return mName; }
+
+        int32 distance(const JSType *other) const;
+    };
+
+    
+    inline void JSObject::init(JSObject* prototype) { mPrototype = prototype; mType = &Any_Type; mClass = new JSString(ObjectString); }
+    
+    inline JSFunction::JSFunction(ICodeModule* iCode) : mICode(iCode), JSObject(functionPrototypeObject) { setClass(new JSString(FunctionString)); }
+
+
+} /* namespace JSTypes */    
+} /* namespace JavaScript */
+
+
+#endif /* jstypes_h */

mozilla/js/js2/macbuild/JS2.prefix

@@ -0,0 +1 @@
+#define XP_MAC 1

mozilla/js/js2/macbuild/JS2Debug.prefix

@@ -0,0 +1,2 @@
+#define XP_MAC 1
+#define DEBUG 1

mozilla/js/js2/macbuild/JS2MPW.prefix

@@ -0,0 +1,2 @@
+#define XP_MAC 1
+#define XP_MAC_MPW 1

mozilla/js/js2/macbuild/JS2MPWDebug.prefix

@@ -0,0 +1,3 @@
+#define XP_MAC 1
+#define XP_MAC_MPW 1
+#define DEBUG 1

mozilla/js/js2/macbuild/gc_config.h

@@ -0,0 +1,91 @@
+/*
+	MacOS_config.h
+	
+	Configuration flags for Macintosh development systems.
+	
+ 	<Revision History>
+ 	
+ 	11/16/95  pcb  Updated compilation flags to reflect latest 4.6 Makefile.
+	
+	by Patrick C. Beard.
+ */
+/* Boehm, November 17, 1995 12:10 pm PST */
+
+#ifdef __MWERKS__
+
+// for CodeWarrior Pro with Metrowerks Standard Library (MSL).
+// #define MSL_USE_PRECOMPILED_HEADERS 0
+#include <ansi_prefix.mac.h>
+#ifndef __STDC__
+#define __STDC__ 0
+#endif
+
+#endif /* __MWERKS__ */
+
+// these are defined again in gc_priv.h.
+#undef TRUE
+#undef FALSE
+
+#define ALL_INTERIOR_POINTERS	// follows interior pointers.
+#define SILENT					// no collection messages.
+//#define DONT_ADD_BYTE_AT_END	// no padding.
+//#define SMALL_CONFIG			// whether to use a smaller heap.
+#define NO_SIGNALS				// signals aren't real on the Macintosh.
+#define USE_TEMPORARY_MEMORY	// use Macintosh temporary memory.
+//#define FIND_LEAK				// use as a leak detector.
+//#define LARGE_CONFIG			// try a big heap, for fun.
+
+// CFLAGS= -O -DNO_SIGNALS -DSILENT -DALL_INTERIOR_POINTERS
+//
+//LIBGC_CFLAGS= -O -DNO_SIGNALS -DSILENT \
+//    -DREDIRECT_MALLOC=GC_malloc_uncollectable \
+//    -DDONT_ADD_BYTE_AT_END -DALL_INTERIOR_POINTERS
+//   Flags for building libgc.a -- the last two are required.
+//
+// Setjmp_test may yield overly optimistic results when compiled
+// without optimization.
+// -DSILENT disables statistics printing, and improves performance.
+// -DCHECKSUMS reports on erroneously clear dirty bits, and unexpectedly
+//   altered stubborn objects, at substantial performance cost.
+//   Use only for incremental collector debugging.
+// -DFIND_LEAK causes the collector to assume that all inaccessible
+//   objects should have been explicitly deallocated, and reports exceptions.
+//   Finalization and the test program are not usable in this mode.
+// -DSOLARIS_THREADS enables support for Solaris (thr_) threads.
+//   (Clients should also define SOLARIS_THREADS and then include
+//   gc.h before performing thr_ or GC_ operations.)
+//   This is broken on nonSPARC machines.
+// -DALL_INTERIOR_POINTERS allows all pointers to the interior
+//   of objects to be recognized.  (See gc_priv.h for consequences.)
+// -DSMALL_CONFIG tries to tune the collector for small heap sizes,
+//   usually causing it to use less space in such situations.
+//   Incremental collection no longer works in this case.
+// -DLARGE_CONFIG tunes the collector for unusually large heaps.
+//   Necessary for heaps larger than about 500 MB on most machines.
+//   Recommended for heaps larger than about 64 MB.
+// -DDONT_ADD_BYTE_AT_END is meaningful only with
+//   -DALL_INTERIOR_POINTERS.  Normally -DALL_INTERIOR_POINTERS
+//   causes all objects to be padded so that pointers just past the end of
+//   an object can be recognized.  This can be expensive.  (The padding
+//   is normally more than one byte due to alignment constraints.)
+//   -DDONT_ADD_BYTE_AT_END disables the padding.
+// -DNO_SIGNALS does not disable signals during critical parts of
+//   the GC process.  This is no less correct than many malloc 
+//   implementations, and it sometimes has a significant performance
+//   impact.  However, it is dangerous for many not-quite-ANSI C
+//   programs that call things like printf in asynchronous signal handlers.
+// -DOPERATOR_NEW_ARRAY declares that the C++ compiler supports the
+//   new syntax "operator new[]" for allocating and deleting arrays.
+//   See gc_cpp.h for details.  No effect on the C part of the collector.
+//   This is defined implicitly in a few environments.
+// -DREDIRECT_MALLOC=X causes malloc, realloc, and free to be defined
+//   as aliases for X, GC_realloc, and GC_free, respectively.
+//   Calloc is redefined in terms of the new malloc.  X should
+//   be either GC_malloc or GC_malloc_uncollectable.
+//   The former is occasionally useful for working around leaks in code
+//   you don't want to (or can't) look at.  It may not work for
+//   existing code, but it often does.  Neither works on all platforms,
+//   since some ports use malloc or calloc to obtain system memory.
+//   (Probably works for UNIX, and win32.)
+// -DNO_DEBUG removes GC_dump and the debugging routines it calls.
+//   Reduces code size slightly at the expense of debuggability.

mozilla/js/js2/numerics.h

@@ -0,0 +1,153 @@
+// -*- Mode: C++; tab-width: 4; 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 the JavaScript 2 Prototype.
+//
+// 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.
+
+#ifndef numerics_h
+#define numerics_h
+
+#include "utilities.h"
+#include <cmath>
+
+/* Use platform-defined floating-point routines.
+ * On platforms with faulty floating-point code
+ * ifdef these out and replace by custom implementations. */
+
+#ifndef STLPORT
+# ifndef _WIN32
+    using std::abs;
+    using std::floor;
+    using std::ceil;
+    using std::fmod;
+    using std::sqrt;
+    using std::sin;
+    using std::cos;
+    using std::tan;
+    using std::asin;
+    using std::acos;
+    using std::atan;
+# endif
+#endif
+
+namespace JavaScript {
+
+//
+// Double-precision constants
+//
+
+	extern double positiveInfinity;
+	extern double negativeInfinity;
+	extern double nan;
+
+//
+// Portable double-precision floating point to string and back conversions
+//
+
+	double ulp(double x);
+	int hi0bits(uint32 x);
+
+	class BigInt {
+		enum {maxLgGrossSize = 15};		// Maximum value of lg2(grossSize)
+		static uint32 *freeLists[maxLgGrossSize+1];
+		
+	    uint lgGrossSize;				// lg2(grossSize)
+	  public:
+	    bool negative;					// True if negative.  Ignored by most BigInt routines!
+	  private:
+	    uint32 grossSize;				// Number of words allocated for <words>
+	    uint32 size;					// Actual number of words.  If the number is nonzero, the most significant word must be nonzero.
+	    								// If the number is zero, then size is also 0.
+	    uint32 *words;					// <size> words of the number, in little endian order
+	    
+	    void allocate(uint lgGrossSize);
+	    void recycle();
+	    void initCopy(const BigInt &b);
+	    void move(BigInt &b);
+	  public:
+	    BigInt(): words(0) {}
+	    explicit BigInt(uint lgGrossSize) {allocate(lgGrossSize);}
+	    BigInt(const BigInt &b) {initCopy(b);}
+		void operator=(const BigInt &b) {ASSERT(!words); initCopy(b);}
+	    ~BigInt() {if (words) recycle();}
+	    
+	    void setLgGrossSize(uint lgGrossSize);
+	    void init(uint32 i);
+		void init(double d, int32 &e, int32 &bits);
+		void mulAdd(uint m, uint a);
+		void operator*=(const BigInt &m);
+		void pow2Mul(int32 k);
+		void pow5Mul(int32 k);
+		bool isZero() const {ASSERT(words); return !size;}
+		int cmp(const BigInt &b) const;
+		void initDiff(const BigInt &m, const BigInt &n);
+		uint32 quoRem2(int32 k);
+		int32 quoRem(const BigInt &S);
+		uint32 divRem(uint32 divisor);
+		double b2d(int32 &e) const;
+		double ratio(const BigInt &denominator) const;
+		void s2b(const char *s, int32 nd0, int32 nd, uint32 y9);
+		
+		uint32 nWords() const {return size;}
+		uint32 word(uint32 i) const {ASSERT(i < size); return words[i];}
+	};
+
+
+	// 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>.
+	//
+	// Keep this in sync with doubleToAsciiModes[].
+	enum DToStrMode {
+	    dtosStandard,					// Either fixed or exponential format; round-trip
+	    dtosStandardExponential,		// Always exponential format; round-trip
+	    dtosFixed,						// Round to <precision> digits after the decimal point; exponential if number is large
+	    dtosExponential,				// Always exponential format; <precision> significant digits
+	    dtosPrecision					// Either fixed or exponential format; <precision> significant digits
+	};
+
+
+	// Maximum number of characters (including trailing null) that a dtosStandard or dtosStandardExponential
+	// conversion can produce.  This maximum is reached for a number like -1.2345678901234567e+123.
+	const int dtosStandardBufferSize = 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 dtosVariableBufferSize(precision) ((precision)+24 > dtosStandardBufferSize ? (precision)+24 : dtosStandardBufferSize)
+
+	// "-0.0000...(1073 zeros after decimal point)...0001\0" is the longest string that we could produce,
+	// which occurs when printing -5e-324 in binary.  We could compute a better estimate of the size of
+	// the output string and malloc fewer bytes depending on d and base, but why bother?
+	const int dtobasesBufferSize = 1078;
+
+	double strToDouble(const char *str, const char *&numEnd);
+	double stringToDouble(const char16 *str, const char16 *strEnd, const char16 *&numEnd);
+	double stringToInteger(const char16 *str, const char16 *strEnd, const char16 *&numEnd, uint base);
+
+	char *doubleToStr(char *buffer, size_t bufferSize, double value, DToStrMode mode, int precision);
+	size_t doubleToBaseStr(char *buffer, double value, uint base);
+	void appendDouble(String &dst, double value, DToStrMode mode = dtosStandard, int precision = 0);
+	inline String &operator+=(String &s, double value) {appendDouble(s, value); return s;}
+	void printDouble(Formatter &f, double value, DToStrMode mode = dtosStandard, int precision = 0);
+	inline Formatter &operator<<(Formatter &f, double value) {printDouble(f, value); return f;}
+}
+#endif

mozilla/js/js2/systemtypes.h

@@ -0,0 +1,93 @@
+// -*- Mode: C++; tab-width: 4; 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 the JavaScript 2 Prototype.
+//
+// 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.
+
+#ifndef systemtypes_h
+#define systemtypes_h
+
+#include <cstddef>
+
+#ifdef _WIN32
+ // Turn off warnings about identifiers too long in browser information
+ #pragma warning(disable: 4786)
+#endif
+
+// Define int8, int16, int32, int64, uint8, uint16, uint32, uint64, and uint.
+typedef unsigned int uint;
+typedef unsigned char uchar;
+
+typedef signed char int8;
+typedef unsigned char uint8;
+typedef short int16;
+typedef unsigned short uint16;
+#if !defined(XP_MAC) && !defined(_WIN32)
+ typedef int int32;
+ typedef unsigned int uint32;
+#else
+ typedef long int32;
+ typedef unsigned long uint32;
+#endif
+#ifdef _WIN32
+ typedef __int64 int64;
+ typedef unsigned __int64 uint64;
+#else
+ typedef long long int64;
+ typedef unsigned long long uint64;
+#endif
+
+// Define this if the machine natively supports 64-bit integers
+#define NATIVE_INT64
+
+// Define float32 and float64.
+typedef double float64;
+typedef float float32;
+
+// A UTF-16 character
+// Use wchar_t on platforms on which wchar_t has 16 bits; otherwise use int16.
+// Note that in C++ wchar_t is a distinct type rather than a typedef for some integral type.
+// Like char, a char16 can be either signed or unsigned at the implementation's discretion.
+#ifdef __GNUC__
+ // GCC's wchar_t is 32 bits, so we can't use it.
+ typedef uint16 char16;
+ typedef uint16 uchar16;
+#else
+ typedef wchar_t char16;
+ #ifndef _WIN32 // Microsoft VC6 bug: wchar_t should be a built-in type, not a typedef
+  typedef unsigned wchar_t uchar16;
+ #else
+  typedef wchar_t uchar16;
+ #endif
+#endif
+
+#ifdef _WIN32
+ #define IS_LITTLE_ENDIAN
+#endif
+#ifdef __i386__
+ #define IS_LITTLE_ENDIAN
+#endif
+
+
+// basicAlignment is the maximum alignment required by any native type.  An object aligned to
+// a multiple of basicAlignment can hold any native type.  malloc should return a pointer whose
+// lgBasicAlignment least significant bits are clear.
+// Currently basicAlignment is set to 8 to allow doubles and int64s to have their natural alignment;
+// may be customized for individual platforms.
+const uint lgBasicAlignment = 3;
+const uint basicAlignment = 1u<<lgBasicAlignment;
+
+#endif /* systemtypes_h */

mozilla/js/js2/tests/classes.js

@@ -0,0 +1,28 @@
+class A {
+    static var x = 0;
+
+    static function f()
+    {
+        return A.x++;
+    }
+}    
+
+class Point3D {
+    var x = 0, y = 0, z = 0;
+
+    function set(x, y, z) {
+        this.x = x;
+        this.y = y;
+        this.z = z;
+        return this;
+    }
+    
+    function setX(x) { this.x = x; }
+    function getX() { return this.x; }
+    
+    function setY(y) { this.y = y; }
+    function getY() { return this.y; }
+    
+    function setZ(z) { this.z = z; }
+    function getZ() { return this.z; }
+}

mozilla/js/js2/tools/gencode.pl

@@ -0,0 +1,596 @@
+#!perl
+
+use strict;
+
+my $tab = "    ";
+my $init_tab = $tab;
+my $enum_decs = "";
+my $class_decs = "";
+my @name_array;
+my $opcode_maxlen = 0;
+
+#
+# fields are:
+#
+# * super: Class to inherit from, if super is Instruction_(1|2|3), the script
+#          will automatically append the correct template info based on |params|
+# * super_has_print: Set to 1 if you want to inherit the print() and print_args()
+#                    methods from the superclass, set to 0 (or just don't set)
+#                    to generate print methods.
+# * rem: Remark you want to show up after the enum def, and inside the class.
+# * params: The parameter list expected by the constructor, you can specify a
+#           default value, using the syntax, [ ("Type = default") ].
+#
+# class names will be generated based on the opcode mnemonic.  See the
+# subroutine get_classname for the implementation.  Basically underscores will
+# be removes and the class name will be WordCapped, using the positions where the
+# underscores were as word boundries.  The only exception occurs when a word is
+# two characters, in which case both characters will be capped,
+# as in BRANCH_GT -> BranchGT.
+#
+
+#
+# template definitions for compare, arithmetic, and conditional branch ops
+#
+my $binary_op =
+  {
+   super  => "Instruction_3",
+   super_has_print => 1,
+   rem    => "dest, source1, source2",
+   params => [ ("TypedRegister", "TypedRegister", "TypedRegister") ]
+  };
+
+my $math_op =
+  {
+   super  => "Arithmetic",
+   super_has_print => 1,
+   rem    => "dest, source1, source2",
+   params => [ ("TypedRegister", "TypedRegister", "TypedRegister") ]
+  };
+
+my $cbranch_op =
+  {
+   super  => "GenericBranch",
+   super_has_print => 1,
+   rem    => "target label, condition",
+   params => [ ("Label*", "TypedRegister") ]
+  };
+
+my $unary_op =
+  {
+   super  => "Instruction_2",
+   rem    => "dest, source",
+   params => [ ("TypedRegister", "TypedRegister") ]
+  };
+
+
+#
+# op defititions
+#
+my %ops;
+$ops{"NOP"} = 
+  {
+   super  => "Instruction",
+   rem    => "do nothing and like it",
+  };
+$ops{"DEBUGGER"} = 
+  {
+   super  => "Instruction",
+   rem    => "drop to the debugger",
+  };
+$ops{"GENERIC_BINARY_OP"} =
+  {
+   super  => "Instruction_4",
+   rem    => "dest, op, source1, source2",
+   params => [ ("TypedRegister", "BinaryOperator::BinaryOp", "TypedRegister", "TypedRegister") ]
+  };
+$ops{"MOVE"} =
+  {
+   super  => "Instruction_2",
+   rem    => "dest, source",
+   params => [ ("TypedRegister", "TypedRegister") ]
+  };
+$ops{"LOAD_IMMEDIATE"} =
+  {
+   super  => "Instruction_2",
+   rem    => "dest, immediate value (double)",
+   params => [ ("TypedRegister", "double" ) ]
+  };
+$ops{"LOAD_BOOLEAN"} =
+  {
+   super  => "Instruction_2",
+   rem    => "dest, immediate value (boolean)",
+   params => [ ("TypedRegister", "bool" ) ]
+  };
+$ops{"LOAD_STRING"} =
+  {
+   super  => "Instruction_2",
+   rem    => "dest, immediate value (string)",
+   params => [ ("TypedRegister", "JSString*" ) ]
+  };
+$ops{"LOAD_NAME"} =
+  {
+   super  => "Instruction_2",
+   rem    => "dest, name",
+   params => [ ("TypedRegister", "const StringAtom*" ) ]
+  };
+$ops{"SUPER"} =
+  {
+   super  => "Instruction_1",
+   rem    => "dest",
+   params => [ ("TypedRegister" ) ]
+  };
+$ops{"SAVE_NAME"} =
+  {
+   super  => "Instruction_2",
+   rem    => "name, source",
+   params => [ ("const StringAtom*", "TypedRegister") ]
+  };
+$ops{"NEW_OBJECT"} =
+  {
+   super  => "Instruction_2",
+   rem    => "dest, constructor",
+   params => [ ("TypedRegister", "TypedRegister") ]
+  };
+$ops{"NEW_CLASS"} =
+  {
+   super  => "Instruction_2",
+   rem    => "dest, class",
+   params => [ ("TypedRegister", "JSClass*") ]
+  };
+$ops{"NEW_FUNCTION"} =
+  {
+   super  => "Instruction_2",
+   rem    => "dest, ICodeModule", 
+   params => [ ("TypedRegister", "ICodeModule*") ]
+  };
+$ops{"NEW_ARRAY"} =
+  {
+   super  => "Instruction_1",
+   rem    => "dest",
+   params => [ ("TypedRegister") ]
+  };
+$ops{"DELETE_PROP"} =
+  {
+   super  => "Instruction_3",
+   rem    => "dest, object, prop name",
+   params => [ ("TypedRegister", "TypedRegister", "const StringAtom*") ]
+  };
+$ops{"GET_PROP"} =
+  {
+   super  => "Instruction_3",
+   rem    => "dest, object, prop name",
+   params => [ ("TypedRegister", "TypedRegister", "const StringAtom*") ]
+  };
+$ops{"SET_PROP"} =
+  {
+   super  => "Instruction_3",
+   rem    => "object, name, source",
+   params => [ ("TypedRegister", "const StringAtom*", "TypedRegister") ]
+  };
+$ops{"GET_SLOT"} =
+  {
+   super  => "Instruction_3",
+   rem    => "dest, object, slot number",
+   params => [ ("TypedRegister", "TypedRegister", "uint32") ]
+  };
+$ops{"SET_SLOT"} =
+  {
+   super  => "Instruction_3",
+   rem    => "object, slot number, source",
+   params => [ ("TypedRegister", "uint32", "TypedRegister") ]
+  };
+$ops{"GET_STATIC"} =
+  {
+   super  => "Instruction_3",
+   rem    => "dest, class, index",
+   params => [ ("TypedRegister", "JSClass*", "uint32") ]
+  };
+$ops{"SET_STATIC"} =
+  {
+   super  => "Instruction_3",
+   rem    => "class, index, source",
+   params => [ ("JSClass*", "uint32", "TypedRegister") ]
+  };
+$ops{"STATIC_XCR"} =
+  {
+   super  => "Instruction_4",
+   rem    => "dest, class, index, value",
+   params => [ ("TypedRegister", "JSClass*", "uint32", "double") ]
+  };
+$ops{"SLOT_XCR"} =
+  {
+   super  => "Instruction_4",
+   rem    => "dest, source, slot number, value",
+   params => [ ("TypedRegister", "TypedRegister", "uint32", "double") ]
+  };
+$ops{"PROP_XCR"} =
+  {
+   super  => "Instruction_4",
+   rem    => "dest, source, name, value",
+   params => [ ("TypedRegister", "TypedRegister", "const StringAtom*", "double") ]
+  };
+$ops{"ELEM_XCR"} =
+  {
+   super  => "Instruction_4",
+   rem    => "dest, base, index, value",
+   params => [ ("TypedRegister", "TypedRegister", "TypedRegister", "double") ]
+  };
+$ops{"NAME_XCR"} =
+  {
+   super  => "Instruction_3",
+   rem    => "dest, name, value",
+   params => [ ("TypedRegister", "const StringAtom*", "double") ]
+  };
+$ops{"VAR_XCR"} =
+  {
+   super  => "Instruction_3",
+   rem    => "dest, source, value",
+   params => [ ("TypedRegister", "TypedRegister", "double") ]
+  };
+$ops{"GET_ELEMENT"} =
+  {
+   super  => "Instruction_3",
+   rem    => "dest, base, index",
+   params => [ ("TypedRegister", "TypedRegister", "TypedRegister") ]
+  };
+$ops{"SET_ELEMENT"} =
+  {
+   super  => "Instruction_3",
+   rem    => "base, index, value",
+   params => [ ("TypedRegister", "TypedRegister", "TypedRegister") ]
+  };
+$ops{"ADD"}        = $math_op;
+$ops{"SUBTRACT"}   = $math_op;
+$ops{"MULTIPLY"}   = $math_op;
+$ops{"DIVIDE"}     = $math_op;
+$ops{"REMAINDER"}  = $math_op;
+$ops{"SHIFTLEFT"}  = $math_op;
+$ops{"SHIFTRIGHT"} = $math_op;
+$ops{"USHIFTRIGHT"}= $math_op;
+$ops{"AND"}        = $math_op;
+$ops{"OR"}         = $math_op;
+$ops{"XOR"}        = $math_op;
+$ops{"COMPARE_LT"} = $binary_op;
+$ops{"COMPARE_LE"} = $binary_op;
+$ops{"COMPARE_EQ"} = $binary_op;
+$ops{"COMPARE_NE"} = $binary_op;
+$ops{"COMPARE_GE"} = $binary_op;
+$ops{"COMPARE_GT"} = $binary_op;
+$ops{"COMPARE_IN"} = $binary_op;
+$ops{"STRICT_EQ"}  = $binary_op;
+$ops{"STRICT_NE"}  = $binary_op;
+$ops{"INSTANCEOF"} = $binary_op;
+$ops{"BITNOT"}     = $unary_op;
+$ops{"NOT"}        = $unary_op;
+$ops{"TEST"}       = $unary_op;
+$ops{"NEGATE"}     = $unary_op;
+$ops{"POSATE"}     = $unary_op;
+$ops{"BRANCH"} =
+  {
+   super  => "GenericBranch",
+   rem    => "target label",
+   params => [ ("Label*") ]
+  };
+$ops{"BRANCH_TRUE"} = $cbranch_op;
+$ops{"BRANCH_FALSE"} = $cbranch_op;
+$ops{"RETURN"} =
+  {
+   super    => "Instruction_1",
+   rem      => "return value",
+   params   => [ ("TypedRegister") ]
+  };
+$ops{"RETURN_VOID"} =
+  {
+   super => "Instruction",
+   rem   => "Return without a value"
+  };
+$ops{"CALL"} =
+  {
+   super  => "Instruction_4",
+   rem    => "result, base, target, args",
+   params => [ ("TypedRegister", "TypedRegister", "TypedRegister", "RegisterList") ]
+  };
+$ops{"GET_METHOD"} =
+  {
+   super  => "Instruction_3",
+   rem    => "result, target base, index",
+   params => [ ("TypedRegister", "TypedRegister", "uint32") ]
+  };
+$ops{"THROW"} =
+  {
+   super    => "Instruction_1",
+   rem      => "exception value",
+   params   => [ ("TypedRegister") ]
+  };
+$ops{"TRYIN"} =
+  {
+   super  => "Instruction_2",
+   rem    => "catch target, finally target",
+   params => [ ("Label*", "Label*") ]
+  };
+$ops{"TRYOUT"} = 
+  {
+   super  => "Instruction",
+   rem    => "mmm, there is no try, only do",
+  };
+$ops{"JSR"} =
+  {
+   super  => "GenericBranch",
+   rem    => "target",
+   params => [ ("Label*") ]
+  };
+$ops{"RTS"} =
+  {
+   super => "Instruction",
+   rem   => "Return to sender",
+  };
+$ops{"WITHIN"} =
+  {
+   super  => "Instruction_1",
+   rem    => "within this object",
+   params => [ ("TypedRegister") ]
+  };
+$ops{"WITHOUT"} =
+  {
+   super  => "Instruction",
+   rem    => "without this object",
+  };
+$ops{"CAST"} =
+  {
+   super  => "Instruction_3",
+   rem    => "dest, rvalue, toType",
+   params => [ ("TypedRegister", "TypedRegister", "JSType*") ]
+  };
+
+#
+# nasty perl code, you probably don't need to muck around below this line
+#
+
+my $k;
+
+if (!$ARGV[0]) {
+    # no args, collect all opcodes
+    for $k (sort(keys(%ops))) {
+        &collect($k);
+    }
+} else {
+    # collect defs for only the opcodes specified on the command line
+    while ($k = pop(@ARGV)) {
+        &collect (uc($k));
+    }
+}
+
+&spew;
+
+sub collect {
+    # grab the info from the $k record in $ops, and append it to
+    # $enum_decs, @name_array, and $class_decs.
+    my ($k) = @_;
+
+    if (length($k) > $opcode_maxlen) {
+        $opcode_maxlen = length($k);
+    }
+
+    my $c = $ops{$k};
+    if (!$c) {
+        die ("Unknown opcode, $k\n");
+    }
+
+    my $opname = $k;
+    my $cname = get_classname ($k);
+    my $super = $c->{"super"};
+    my $constructor = $super;
+	my @params;
+	
+	if ($c->{"params"}) {
+		@params = @{$c->{"params"}};
+	} else {
+		@params = ();
+	}
+    
+    my $rem = $c->{"rem"};
+    my ($dec_list, $call_list, $template_list) =
+      &get_paramlists(@params);
+    my @types = split (", ", $template_list);
+
+    my $constr_params = $call_list ? $opname . ", " . $call_list : $opname;
+
+    if ($super =~ /Instruction_\d/) {
+        $super .= "<" . $template_list . ">";
+    }    
+    
+    push (@name_array, $opname);
+    $enum_decs .= "$init_tab$tab$opname, /* $rem */\n";
+    if ($super) {
+        $class_decs .= ($init_tab . "class $cname : public $super {\n" .
+                        $init_tab . "public:\n" .
+                        $init_tab . $tab . "/* $rem */\n" .
+                        $init_tab . $tab . "$cname ($dec_list) :\n" .
+                        $init_tab . $tab . $tab . "$super\n" .
+                        "$init_tab$tab$tab($constr_params) " .
+                        "{};\n");
+
+        if (!$c->{"super_has_print"}) {
+            $class_decs .= ($init_tab . $tab . 
+                             "virtual Formatter& print(Formatter& f) {\n" .
+                             $init_tab . $tab . $tab . "f << opcodeNames[$opname]" .
+                             &get_print_body(@types) . ";\n" .
+                             $init_tab . $tab . $tab . "return f;\n" .
+                             $init_tab . $tab . "}\n");
+
+            my $printops_body = &get_printops_body(@types);
+            my $printops_decl =  "virtual Formatter& printOperands(Formatter& f, ";
+
+            $printops_decl .= ($dec_list =~ /RegisterList/) ?
+                               "const JSValues& registers" :
+                               "const JSValues& /*registers*/";
+            $printops_decl .= ") {\n";
+
+            $class_decs .= ($init_tab . $tab . 
+                            $printops_decl .
+                            $printops_body .
+                            $init_tab . $tab . $tab . "return f;\n" .
+                            $init_tab . $tab . "}\n");
+
+        } else {
+            $class_decs .= $init_tab . $tab . 
+              "/* print() and printOperands() inherited from $super */\n";
+        }
+
+        $class_decs .= $init_tab . "};\n\n";
+    }
+}
+
+sub spew {
+    # print the info in $enum_decs, @name_aray, and $class_decs to stdout.
+    my $opname;
+    
+    print "// THIS FILE IS MACHINE GENERATED! DO NOT EDIT BY HAND!\n\n";
+    
+    print "#if !defined(OPCODE_NAMES)\n\n";
+
+    print $tab . "enum {\n$enum_decs$tab};\n\n";
+    
+    print $class_decs;
+    
+    print "#else\n\n";
+
+    print $tab . "char *opcodeNames[] = {\n";
+
+    for $opname (@name_array) {
+        print "$tab$tab\"$opname";
+        for (0 .. $opcode_maxlen - length($opname) - 1) {
+            print " ";
+        }
+        print "\",\n"
+    }
+    print "$tab};\n\n";
+
+    print "#endif\n\n"
+}
+
+sub get_classname {
+    # munge an OPCODE_MNEMONIC into a ClassName
+    my ($enum_name) = @_;
+    my @words = split ("_", $enum_name);
+    my $cname = "";
+    my $i = 0;
+    my $word;
+
+    for $word (@words) {
+        if ((length($word) == 2) && ($i != 0)) {
+            $cname .= uc($word);
+        } else {
+            $cname .= uc(substr($word, 0, 1)) . lc(substr($word, 1));
+        }
+        $i++;
+    }
+    
+    return $cname;
+}
+
+sub get_paramlists {
+    # parse the params entry (passed into @types) into various parameter lists
+    # used in the class declaration
+    my @types = @_;
+    my @dec;
+    my @call;
+    my @tostr;
+    my @template;
+    my $op = 1;
+    my $type;
+
+    for $type (@types) {
+        my $pfx;
+        my $deref;
+        my $member;
+        my $default;
+
+        ($type, $default) = split (" = ", $type);
+        if ($default ne "") {
+            $default = " = " . $default;
+        }
+
+        $pfx = $deref = "";
+        $member = "mOp$op";
+
+        push (@dec, "$type aOp$op" . "$default");
+        push (@call, "aOp$op");
+        push (@template, $type);
+        $op++;
+    }
+
+    return (join (", ", @dec), join (", ", @call), join (", ", @template));
+}
+
+sub get_print_body {
+    # generate the body of the print() function
+    my (@types) = @_;
+    my $type;
+    my @oplist;
+    my $op = 1;
+    my $in = $init_tab . $tab . $tab;
+
+    for $type (@types) {
+
+        if ($type eq "TypedRegister") {
+
+           push (@oplist, "mOp$op" );
+
+ #           push (@oplist, "\"R\" << ((mOp$op.first == NotARegister) ? -1 : mOp$op.first)");
+
+        } elsif ($type eq "Label*") {
+            push (@oplist, "\"Offset \" << ((mOp$op) ? mOp$op->mOffset : NotAnOffset)")
+        } elsif ($type =~ /String/) {
+            push (@oplist, "\"'\" << *mOp$op << \"'\"");
+        } elsif ($type =~ /JSType\*/) {
+            push (@oplist, "\"'\" << mOp$op->getName() << \"'\"");
+        } elsif ($type =~ /bool/) {
+            push (@oplist, "\"'\" << ((mOp$op) ? \"true\" : \"false\") << \"'\"");
+        } elsif ($type =~ /ICodeModule/) {
+            push (@oplist, "\"ICodeModule\"");
+        } elsif ($type =~ /JSClass\*/) {
+            push (@oplist, "mOp$op->getName()");
+        } else {
+            push (@oplist, "mOp$op");
+        }
+
+        $op++;
+    }
+
+    my $rv = join (" << \", \" << ", @oplist);
+    if ($rv ne "") {
+        $rv = " << \"\\t\" << " . $rv;
+    }
+    
+    return $rv;
+}
+
+sub get_printops_body {
+    # generate the body of the printOperands() function
+    my (@types) = @_;
+    my $type;
+    my @oplist;
+    my $op = 1;
+    my $in = $init_tab . $tab . $tab;
+
+    for $type (@types) {
+
+        if ($type eq "TypedRegister") {
+            push (@oplist, "mOp$op.first");
+#            push (@oplist, "\"R\" << mOp$op.first << '=' << registers[mOp$op.first]");
+        } elsif ($type eq "RegisterList") {
+            push (@oplist, "ArgList(mOp$op, registers)");
+        }
+
+        $op++;
+    }
+
+    my $rv = join (" << \", \" << ", @oplist);
+    if ($rv ne "") {
+        $rv = $init_tab . $tab . $tab . "f << " . $rv . ";\n";
+    }
+    
+    return $rv;
+}

mozilla/js/js2/vmtypes.cpp

@@ -0,0 +1,178 @@
+/* -*- Mode: C++; tab-width: 4; 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 the JavaScript 2 Prototype.
+ *
+ * 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 "utilities.h"
+#include "vmtypes.h"
+
+namespace JavaScript {
+namespace VM {
+
+using namespace JSTypes;
+
+#define OPCODE_NAMES
+#include "icode.h"
+
+Formatter& operator<< (Formatter& f, Instruction& i)
+{
+    return i.print(f);
+}
+
+Formatter& operator<< (Formatter& f, RegisterList& rl)
+{
+    TypedRegister* e = rl.end();
+    
+    f << "(";
+    for (RegisterList::iterator r = rl.begin(); r != e; r++) {
+        f << "R" << r->first; 
+        if ((r + 1) != e)
+            f << ", ";
+    }
+    f << ")";
+    
+    return f;
+}
+
+Formatter& operator<< (Formatter& f, const ArgList& al)
+{
+    const RegisterList& rl = al.mList;
+    const JSValues& registers = al.mRegisters;
+    f << "(";
+    RegisterList::const_iterator i = rl.begin(), e = rl.end();
+    if (i != e) {
+        TypedRegister r = *i++;
+        f << "R" << r.first << '=' << registers[r.first];
+        while (i != e) {
+            r = *i++;
+            f << ", R" << r.first << '=' << registers[r.first];
+        }
+    }
+    f << ")";
+    
+    return f;
+}
+
+Formatter& operator<< (Formatter& f, TypedRegister& r)
+{
+    if (r.first == NotARegister)
+        f << "<NaR>";
+    else
+        f << "R" << r.first;
+    return f;
+}
+
+Formatter& operator<< (Formatter &f, InstructionStream &is)
+{
+
+    for (InstructionIterator i = is.begin(); 
+         i != is.end(); i++) {
+        /*
+        bool isLabel = false;
+
+        for (LabelList::iterator k = labels.begin(); 
+             k != labels.end(); k++)
+            if ((ptrdiff_t)(*k)->mOffset == (i - is.begin())) {
+                f << "#" << (uint32)(i - is.begin()) << "\t";
+                isLabel = true;
+                break;
+            }
+
+        if (!isLabel)
+            f << "\t";
+
+        f << **i << "\n";
+        */
+
+        printFormat(stdOut, "%04u", (uint32)(i - is.begin()));
+        f << ": " << **i << "\n";
+    
+    }
+
+    return f;
+}
+
+BinaryOperator::BinaryOp BinaryOperator::mapICodeOp(ICodeOp op) {
+    // a table later... or maybe we need a grand opcode re-unification 
+    switch (op) {
+    case ADD        : return Add;
+    case SUBTRACT   : return Subtract;
+    case MULTIPLY   : return Multiply;
+    case DIVIDE     : return Divide;
+    case REMAINDER  : return Remainder;
+    case SHIFTLEFT  : return LeftShift;
+    case SHIFTRIGHT : return RightShift;
+    case USHIFTRIGHT: return LogicalRightShift;
+
+    case AND        : return BitwiseAnd;
+    case OR         : return BitwiseOr;
+    case XOR        : return BitwiseXor;
+    
+    case COMPARE_LT : return Less;
+    case COMPARE_LE : return LessOrEqual;
+    case COMPARE_EQ : return Equal;
+    case STRICT_EQ  : return Identical;
+    default :
+        NOT_REACHED("Unsupported binary op");
+        return (BinaryOp)-1;
+    }
+}
+
+Formatter& operator<< (Formatter &f, BinaryOperator::BinaryOp &b)
+{
+    switch (b) {
+    case BinaryOperator::Add:               return f << "Add";
+    case BinaryOperator::Subtract:          return f << "Subtract";
+    case BinaryOperator::Multiply:          return f << "Multiply";
+    case BinaryOperator::Divide:            return f << "Divide";
+    case BinaryOperator::Remainder:         return f << "Remainder";
+    case BinaryOperator::LeftShift:         return f << "LeftShift";
+    case BinaryOperator::RightShift:        return f << "RightShift";
+    case BinaryOperator::LogicalRightShift: return f << "LogicalRightShift";
+
+    case BinaryOperator::BitwiseAnd:        return f << "BitwiseAnd";
+    case BinaryOperator::BitwiseOr:         return f << "BitwiseOr";
+    case BinaryOperator::BitwiseXor:        return f << "BitwiseXor";
+    
+    case BinaryOperator::Less:              return f << "Less";
+    case BinaryOperator::LessOrEqual:       return f << "LessOrEqual";
+    case BinaryOperator::Equal:             return f << "Equal";
+    case BinaryOperator::Identical:         return f << "Identical";
+    default :
+        NOT_REACHED("inner peace, either");
+        return f;
+    }
+}
+
+} /* namespace VM */
+} /* namespace JavaScript */
+
+

mozilla/js/js2/vmtypes.h

@@ -0,0 +1,304 @@
+/* -*- Mode: C++; tab-width: 4; 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 the JavaScript 2 Prototype.
+ *
+ * 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 vmtypes_h
+#define vmtypes_h
+
+#include "numerics.h" /* needed for formatter << double */
+#include "jstypes.h"
+#include "jsclasses.h"
+#include "world.h"
+#include <vector>
+
+/* forward declare classes from JavaScript::ICG */
+namespace JavaScript {
+namespace ICG {
+    class ICodeModule;
+} /* namespace ICG */
+} /* namespace JavaScript */
+
+namespace JavaScript {
+namespace VM {
+
+    using namespace JSTypes;
+    using namespace JSClasses;
+    
+    /********************************************************************/
+
+    typedef uint32 ICodeOp;
+    extern char *opcodeNames[];
+
+    /* super-class for all instructions */
+    class Instruction
+    {
+    public:
+        Instruction(ICodeOp aOpcode) : mOpcode(aOpcode) {}
+        
+        virtual Formatter& print(Formatter& f) = 0;
+        virtual Formatter& printOperands(Formatter& f, const JSValues& /*registers*/) = 0;
+        
+        ICodeOp op() { return mOpcode; }
+        
+        virtual int32 count() { return 0; }
+        
+    protected:
+        ICodeOp mOpcode;
+        
+    };
+
+    /********************************************************************/
+
+    enum { NotARegister = 0xFFFFFFFF };
+    enum { NotALabel = 0xFFFFFFFF };
+    enum { NotAnOffset = 0xFFFFFFFF };
+    enum { NotABanana = 0xFFFFFFFF };
+    
+    /********************************************************************/
+    
+    typedef uint32 Register;
+    typedef std::pair<Register, JSType*> TypedRegister;
+    typedef std::vector<TypedRegister> RegisterList;        
+    typedef std::vector<Instruction *> InstructionStream;
+    typedef InstructionStream::iterator InstructionIterator;
+    typedef std::map<String, TypedRegister, std::less<String> > VariableMap;
+
+    
+    /**
+     * Helper to print Call operands.
+     */
+    struct ArgList {
+        const RegisterList& mList;
+        const JSValues& mRegisters;
+        ArgList(const RegisterList& rl, const JSValues& registers)
+            :   mList(rl), mRegisters(registers) {}
+    };        
+    
+    /********************************************************************/
+    
+    Formatter& operator<< (Formatter& f, Instruction& i);
+    Formatter& operator<< (Formatter& f, RegisterList& rl);
+    Formatter& operator<< (Formatter& f, const ArgList& al);
+    Formatter& operator<< (Formatter& f, InstructionStream& is);
+    Formatter& operator<< (Formatter& f, TypedRegister& r);
+    
+    /********************************************************************/
+    
+    class Label {
+    public:
+        Label(InstructionStream* aBase) :
+            mBase(aBase), mOffset(NotALabel) {}
+        
+        InstructionStream *mBase;
+        uint32 mOffset;
+    };
+    
+    typedef std::vector<Label *> LabelList;
+    typedef LabelList::iterator LabelIterator;
+
+    /********************************************************************/
+
+    /* 1, 2 and 3 operand opcode templates */
+    
+    template <typename Operand1>
+    class Instruction_1 : public Instruction {
+    public:
+        Instruction_1(ICodeOp aOpcode, Operand1 aOp1) : 
+            Instruction(aOpcode), mOp1(aOp1) { }            
+        Operand1& o1() { return mOp1; }
+
+        virtual int32 count() { return 1; }
+        
+    protected:
+        Operand1 mOp1;
+    };
+    
+    template <typename Operand1, typename Operand2>
+    class Instruction_2 : public Instruction {
+    public:
+        Instruction_2(ICodeOp aOpcode, Operand1 aOp1, Operand2 aOp2) :
+            Instruction(aOpcode), mOp1(aOp1), mOp2(aOp2) {}
+        Operand1& o1() { return mOp1; }
+        Operand2& o2() { return mOp2; }
+
+        virtual int32 count() { return 2; }
+        
+    protected:
+        Operand1 mOp1;
+        Operand2 mOp2;
+    };
+    
+    template <typename Operand1, typename Operand2, typename Operand3>
+    class Instruction_3 : public Instruction {
+    public:
+        Instruction_3(ICodeOp aOpcode, Operand1 aOp1, Operand2 aOp2,
+                      Operand3 aOp3) :
+            Instruction(aOpcode), mOp1(aOp1), mOp2(aOp2), mOp3(aOp3) { }
+        Operand1& o1() { return mOp1; }
+        Operand2& o2() { return mOp2; }
+        Operand3& o3() { return mOp3; }
+
+        virtual int32 count() { return 3; }
+        
+    protected:
+        Operand1 mOp1;
+        Operand2 mOp2;
+        Operand3 mOp3;
+    };
+    
+    template <typename Operand1, typename Operand2, typename Operand3, typename Operand4>
+    class Instruction_4 : public Instruction {
+    public:
+        Instruction_4(ICodeOp aOpcode, Operand1 aOp1, Operand2 aOp2,
+                      Operand3 aOp3, Operand4 aOp4) :
+            Instruction(aOpcode), mOp1(aOp1), mOp2(aOp2), mOp3(aOp3), mOp4(aOp4) { }
+        Operand1& o1() { return mOp1; }
+        Operand2& o2() { return mOp2; }
+        Operand3& o3() { return mOp3; }
+        Operand4& o4() { return mOp4; }
+
+        virtual int32 count() { return 4; }
+        
+    protected:
+        Operand1 mOp1;
+        Operand2 mOp2;
+        Operand3 mOp3;
+        Operand4 mOp4;
+    };
+        
+    /********************************************************************/
+
+    /* Instruction groups */
+    
+    class Arithmetic : public Instruction_3<TypedRegister, TypedRegister, TypedRegister> {
+    public:
+        Arithmetic (ICodeOp aOpcode, TypedRegister aDest, TypedRegister aSrc1,
+                    TypedRegister aSrc2) :
+            Instruction_3<TypedRegister, TypedRegister, TypedRegister>(aOpcode, aDest, aSrc1, aSrc2) {}
+
+        virtual Formatter& print(Formatter& f)
+        {
+            f << opcodeNames[mOpcode] << "\tR" << mOp1.first << ", R" << mOp2.first << ", R" << mOp3.first;
+            return f;
+        }
+        
+        virtual Formatter& printOperands(Formatter& f, const JSValues& registers)
+        {
+            f << "R" << mOp1.first << '=' << registers[mOp1.first] << ", " << "R" << mOp2.first << '=' << registers[mOp2.first] << ", " << "R" << mOp3.first << '=' << registers[mOp3.first];
+            return f;
+        }
+    };
+    
+    class Unary : public Instruction_2<TypedRegister, TypedRegister> {
+    public:
+        Unary(ICodeOp aOpcode, TypedRegister aDest, TypedRegister aSrc) :
+            Instruction_2<TypedRegister, TypedRegister>(aOpcode, aDest, aSrc) {}
+        virtual Formatter& print (Formatter& f) {
+            f << opcodeNames[mOpcode] << "\tR" << mOp1.first << ", R" << mOp2.first;
+            return f;
+        }
+
+        virtual Formatter& printOperands(Formatter& f, const JSValues& registers)
+        {
+            f << "R" << mOp1.first << '=' << registers[mOp1.first] << ", " << "R" << mOp2.first << '=' << registers[mOp2.first];
+            return f;
+        }
+    };
+    
+    class GenericBranch : public Instruction_2<Label*, TypedRegister> {
+    public:
+        GenericBranch (ICodeOp aOpcode, Label* aLabel, 
+                       TypedRegister aR = TypedRegister(NotARegister, &Any_Type) ) :
+            Instruction_2<Label*, TypedRegister>(aOpcode, aLabel, aR) {}
+        virtual Formatter& print (Formatter& f) {
+            f << opcodeNames[mOpcode] << "\tOffset " << mOp1->mOffset;
+            if (mOp2.first == NotARegister) {
+                f << ", R~";
+            } else {
+                f << ", R" << mOp2.first;
+            }
+            return f;
+        }
+
+        virtual Formatter& printOperands(Formatter& f, const JSValues& registers)
+        {
+            if (mOp2.first != NotARegister)
+                f << "R" << mOp2.first << '=' << registers[mOp2.first];
+            return f;
+        }
+
+        void resolveTo (uint32 aOffset) { mOp1->mOffset = aOffset; }
+        uint32 getOffset() { return mOp1->mOffset; }
+        void setTarget(Label *label) { mOp1 = label; }
+    };
+
+    /********************************************************************/
+
+    class BinaryOperator {
+    public:
+
+        // Wah, here's a third enumeration of opcodes - ExprNode, ICodeOp and now here, this can't be right??
+        typedef enum { 
+            BinaryOperatorFirst,
+            Add = BinaryOperatorFirst, Subtract, Multiply, Divide,
+            Remainder, LeftShift, RightShift, LogicalRightShift,
+            BitwiseOr, BitwiseXor, BitwiseAnd, Less, LessOrEqual,
+            Equal, Identical, BinaryOperatorCount
+        } BinaryOp;
+
+        BinaryOperator(const JSType *t1, const JSType *t2, JSBinaryOperator *function) :
+            t1(t1), t2(t2), function(function) { }
+
+        BinaryOperator(const JSType *t1, const JSType *t2, JSFunction *function) :
+            t1(t1), t2(t2), function(function) { }
+
+        static BinaryOp mapICodeOp(ICodeOp op);
+
+        const JSType *t1;
+        const JSType *t2;
+        JSFunction *function;
+
+    };
+
+    typedef std::vector<BinaryOperator *> BinaryOperatorList;
+    
+    Formatter& operator<<(Formatter &f, BinaryOperator::BinaryOp &b);
+
+    /********************************************************************/
+
+    #include "icode.h"
+
+} /* namespace VM */
+
+} /* namespace JavaScript */
+
+#endif /* vmtypes_h */

mozilla/js/js2/winbuild/buildgc.bat

@@ -0,0 +1,5 @@
+cd ..\..\..\..
+cvs co mozilla/gc/boehm
+cd mozilla\gc\boehm
+nmake -f NT_MAKEFILE gc.lib
+cd ..\..\js\js2\winbuild

mozilla/js/js2/winbuild/js2.dsp

@@ -0,0 +1,234 @@
+# Microsoft Developer Studio Project File - Name="js2" - Package Owner=<4>
+# Microsoft Developer Studio Generated Build File, Format Version 6.00
+# ** DO NOT EDIT **
+
+# TARGTYPE "Win32 (x86) Console Application" 0x0103
+
+CFG=js2 - Win32 Partial Debug
+!MESSAGE This is not a valid makefile. To build this project using NMAKE,
+!MESSAGE use the Export Makefile command and run
+!MESSAGE 
+!MESSAGE NMAKE /f "js2.mak".
+!MESSAGE 
+!MESSAGE You can specify a configuration when running NMAKE
+!MESSAGE by defining the macro CFG on the command line. For example:
+!MESSAGE 
+!MESSAGE NMAKE /f "js2.mak" CFG="js2 - Win32 Partial Debug"
+!MESSAGE 
+!MESSAGE Possible choices for configuration are:
+!MESSAGE 
+!MESSAGE "js2 - Win32 Release" (based on "Win32 (x86) Console Application")
+!MESSAGE "js2 - Win32 Debug" (based on "Win32 (x86) Console Application")
+!MESSAGE "js2 - Win32 Partial Debug" (based on "Win32 (x86) Console Application")
+!MESSAGE 
+
+# Begin Project
+# PROP AllowPerConfigDependencies 0
+# PROP Scc_ProjName ""
+# PROP Scc_LocalPath ""
+CPP=cl.exe
+RSC=rc.exe
+
+!IF  "$(CFG)" == "js2 - Win32 Release"
+
+# PROP BASE Use_MFC 0
+# PROP BASE Use_Debug_Libraries 0
+# PROP BASE Output_Dir "Release"
+# PROP BASE Intermediate_Dir "Release"
+# PROP BASE Target_Dir ""
+# PROP Use_MFC 0
+# PROP Use_Debug_Libraries 0
+# PROP Output_Dir "Release"
+# PROP Intermediate_Dir "Release"
+# PROP Ignore_Export_Lib 0
+# PROP Target_Dir ""
+# ADD BASE CPP /nologo /W3 /GX /O2 /D "WIN32" /D "NDEBUG" /D "_CONSOLE" /D "_MBCS" /YX /FD /c
+# ADD CPP /nologo /W3 /GX /O2 /D "WIN32" /D "NDEBUG" /D "_CONSOLE" /D "_MBCS" /YX /FD /c
+# ADD BASE RSC /l 0x409 /d "NDEBUG"
+# ADD RSC /l 0x409 /d "NDEBUG"
+BSC32=bscmake.exe
+# ADD BASE BSC32 /nologo
+# ADD BSC32 /nologo
+LINK32=link.exe
+# ADD BASE LINK32 kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib /nologo /subsystem:console /machine:I386
+# ADD LINK32 kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib gc.lib /nologo /subsystem:console /machine:I386 /libpath:"..\..\..\gc\boehm"
+# SUBTRACT LINK32 /pdb:none
+
+!ELSEIF  "$(CFG)" == "js2 - Win32 Debug"
+
+# PROP BASE Use_MFC 0
+# PROP BASE Use_Debug_Libraries 1
+# PROP BASE Output_Dir "Debug"
+# PROP BASE Intermediate_Dir "Debug"
+# PROP BASE Target_Dir ""
+# PROP Use_MFC 0
+# PROP Use_Debug_Libraries 1
+# PROP Output_Dir "Debug"
+# PROP Intermediate_Dir "Debug"
+# PROP Ignore_Export_Lib 0
+# PROP Target_Dir ""
+# ADD BASE CPP /nologo /W3 /Gm /GX /ZI /Od /D "WIN32" /D "_DEBUG" /D "_CONSOLE" /D "_MBCS" /YX /FD /GZ /c
+# ADD CPP /nologo /W3 /Gm /GR /GX /ZI /Od /D "WIN32" /D "_DEBUG" /D "_CONSOLE" /D "_MBCS" /D "DEBUG" /FR /YX /FD /GZ /c
+# ADD BASE RSC /l 0x409 /d "_DEBUG"
+# ADD RSC /l 0x409 /d "_DEBUG" /d "DEBUG"
+BSC32=bscmake.exe
+# ADD BASE BSC32 /nologo
+# SUBTRACT BSC32 /nologo
+LINK32=link.exe
+# ADD BASE LINK32 kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib /nologo /subsystem:console /debug /machine:I386 /pdbtype:sept
+# ADD LINK32 kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib gc.lib /nologo /subsystem:console /debug /machine:I386 /pdbtype:sept /libpath:"..\..\..\gc\boehm"
+
+!ELSEIF  "$(CFG)" == "js2 - Win32 Partial Debug"
+
+# PROP BASE Use_MFC 0
+# PROP BASE Use_Debug_Libraries 1
+# PROP BASE Output_Dir "js2___Win32_Partial_Debug"
+# PROP BASE Intermediate_Dir "js2___Win32_Partial_Debug"
+# PROP BASE Ignore_Export_Lib 0
+# PROP BASE Target_Dir ""
+# PROP Use_MFC 0
+# PROP Use_Debug_Libraries 1
+# PROP Output_Dir "js2___Win32_Partial_Debug"
+# PROP Intermediate_Dir "js2___Win32_Partial_Debug"
+# PROP Ignore_Export_Lib 0
+# PROP Target_Dir ""
+# ADD BASE CPP /nologo /W3 /Gm /GX /ZI /Od /D "WIN32" /D "_DEBUG" /D "_CONSOLE" /D "_MBCS" /D "DEBUG" /FR /YX /FD /GZ /c
+# ADD CPP /nologo /W3 /Gm /GX /ZI /Od /D "WIN32" /D "NDEBUG" /D "_CONSOLE" /D "_MBCS" /FR /YX /FD /GZ /c
+# ADD BASE RSC /l 0x409 /d "_DEBUG" /d "DEBUG"
+# ADD RSC /l 0x409 /d "_DEBUG" /d "DEBUG"
+BSC32=bscmake.exe
+# SUBTRACT BASE BSC32 /nologo
+# SUBTRACT BSC32 /nologo
+LINK32=link.exe
+# ADD BASE LINK32 kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib gc.lib /nologo /subsystem:console /debug /machine:I386 /pdbtype:sept /libpath:"..\..\..\gc\boehm"
+# ADD LINK32 kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib gc.lib /nologo /subsystem:console /debug /machine:I386 /pdbtype:sept /libpath:"..\..\..\gc\boehm"
+
+!ENDIF 
+
+# Begin Target
+
+# Name "js2 - Win32 Release"
+# Name "js2 - Win32 Debug"
+# Name "js2 - Win32 Partial Debug"
+# Begin Group "Source Files"
+
+# PROP Default_Filter "cpp;c;cxx;rc;def;r;odl;idl;hpj;bat"
+# Begin Source File
+
+SOURCE=..\debugger.cpp
+# End Source File
+# Begin Source File
+
+SOURCE=..\hash.cpp
+# End Source File
+# Begin Source File
+
+SOURCE=..\icodegenerator.cpp
+# End Source File
+# Begin Source File
+
+SOURCE=..\interpreter.cpp
+# End Source File
+# Begin Source File
+
+SOURCE=..\js2.cpp
+# End Source File
+# Begin Source File
+
+SOURCE=..\jsmath.cpp
+# End Source File
+# Begin Source File
+
+SOURCE=..\jstypes.cpp
+# End Source File
+# Begin Source File
+
+SOURCE=..\numerics.cpp
+# End Source File
+# Begin Source File
+
+SOURCE=..\parser.cpp
+# End Source File
+# Begin Source File
+
+SOURCE=..\utilities.cpp
+# End Source File
+# Begin Source File
+
+SOURCE=..\vmtypes.cpp
+# End Source File
+# Begin Source File
+
+SOURCE=..\world.cpp
+# End Source File
+# End Group
+# Begin Group "Header Files"
+
+# PROP Default_Filter "h;hpp;hxx;hm;inl"
+# Begin Source File
+
+SOURCE=..\cpucfg.h
+# End Source File
+# Begin Source File
+
+SOURCE=..\gc_allocator.h
+# End Source File
+# Begin Source File
+
+SOURCE=..\hash.h
+# End Source File
+# Begin Source File
+
+SOURCE=..\icode.h
+# End Source File
+# Begin Source File
+
+SOURCE=..\icodegenerator.h
+# End Source File
+# Begin Source File
+
+SOURCE=..\interpreter.h
+# End Source File
+# Begin Source File
+
+SOURCE=..\jsclasses.h
+# End Source File
+# Begin Source File
+
+SOURCE=..\jsmath.h
+# End Source File
+# Begin Source File
+
+SOURCE=..\jstypes.h
+# End Source File
+# Begin Source File
+
+SOURCE=..\numerics.h
+# End Source File
+# Begin Source File
+
+SOURCE=..\parser.h
+# End Source File
+# Begin Source File
+
+SOURCE=..\systemtypes.h
+# End Source File
+# Begin Source File
+
+SOURCE=..\utilities.h
+# End Source File
+# Begin Source File
+
+SOURCE=..\vmtypes.h
+# End Source File
+# Begin Source File
+
+SOURCE=..\world.h
+# End Source File
+# End Group
+# Begin Group "Resource Files"
+
+# PROP Default_Filter "ico;cur;bmp;dlg;rc2;rct;bin;rgs;gif;jpg;jpeg;jpe"
+# End Group
+# End Target
+# End Project

mozilla/js/js2/winbuild/js2.dsw

@@ -0,0 +1,29 @@
+Microsoft Developer Studio Workspace File, Format Version 6.00
+# WARNING: DO NOT EDIT OR DELETE THIS WORKSPACE FILE!
+
+###############################################################################
+
+Project: "js2"=.\js2.dsp - Package Owner=<4>
+
+Package=<5>
+{{{
+}}}
+
+Package=<4>
+{{{
+}}}
+
+###############################################################################
+
+Global:
+
+Package=<5>
+{{{
+}}}
+
+Package=<3>
+{{{
+}}}
+
+###############################################################################
+

mozilla/js/js2/world.cpp

@@ -0,0 +1,39 @@
+// -*- Mode: C++; tab-width: 4; 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 the JavaScript 2 Prototype.
+//
+// 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.
+
+#include "world.h"
+namespace JS = JavaScript;
+
+
+// Return an existing StringAtom corresponding to the String s if there is
+// one; if not, create a new StringAtom with String s and return that StringAtom.
+JS::StringAtom &JS::StringAtomTable::operator[](const String &s)
+{
+	HT::Reference r(ht, s);
+	if (r)
+		return *r;
+	else
+		return ht.insert(r, s);
+}
+
+
+JS::World::World()
+{
+	Token::initKeywords(*this);
+}

mozilla/js/js2/world.h

@@ -0,0 +1,73 @@
+// -*- Mode: C++; tab-width: 4; 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 the JavaScript 2 Prototype.
+//
+// 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.
+
+#ifndef world_h
+#define world_h
+
+#include "utilities.h"
+#include "hash.h"
+#include "parser.h"
+
+namespace JavaScript {
+
+//
+// String atom management
+//
+
+// A StringAtom is a String for which the following guarantee applies:
+// StringAtoms A and B have the same character sequences if and only if A and B are the
+// same StringAtom.
+
+	class StringAtom: public String {
+	  public:
+		Token::Kind tokenKind;			// Token::Kind if this is a keyword; Token::identifier if not
+
+		explicit StringAtom(const String &s): String(s), tokenKind(Token::identifier) {}
+	  private:
+	    StringAtom(const StringAtom&);		// No copy constructor
+	    void operator=(const StringAtom&);	// No assignment operator
+	};
+
+	inline bool operator==(const StringAtom &s1, const StringAtom &s2) {return &s1 == &s2;}
+	inline bool operator!=(const StringAtom &s1, const StringAtom &s2) {return &s1 != &s2;}
+
+
+	class StringAtomTable {
+		typedef HashTable<StringAtom, const String&> HT;
+		HT ht;
+	
+	  public:
+		StringAtom &operator[](const String &s);
+
+        StringAtom &operator[](const char *s)
+        {
+            return operator[](widenCString(s));
+        }
+	};
+
+
+	class World {
+	  public:
+		StringAtomTable identifiers;
+		
+		World();
+	};
+}
+
+#endif

mozilla/js2/src/Makefile

@@ -0,0 +1,44 @@
+STLPORT = /usr/local/include/stlport
+
+CC = gcc
+CFLAGS = -g -ggdb -DDEBUG -DXP_UNIX -Wall -W -Wpointer-arith \
+	-Wbad-function-cast -Wstrict-prototypes -Wmissing-prototypes \
+	-Wno-non-virtual-dtor -I$(STLPORT)
+
+objs = 	hash.o \
+	icodegenerator.o \
+	interpreter.o \
+	js2.o \
+	jsmath.o \
+	jstypes.o \
+	numerics.o \
+	parser.o \
+	utilities.o \
+	world.o \
+	vmtypes.o \
+	debugger.o
+
+gc_path = ../../gc/boehm/
+
+libs =	gc.a -lstdc++ -lm
+
+%.o : %.cpp
+	$(CC) -c $(CFLAGS) $< -o $@
+
+js2: $(objs) gc.a
+	$(CC) -o $@ -ggdb $(objs) $(libs)
+
+gc.a:
+	(cd $(gc_path) ; ln -f -s Makefile.unix Makefile ; make gc.a)
+	ln -f -s $(gc_path)gc.a ./gc.a
+
+gctest: gc_allocator.o
+	$(CC) -o $@ -ggdb $^ $(libs)
+
+clean:
+	rm -f $(objs)
+
+depend:
+	gcc -MM *.cpp > dependencies
+
+include dependencies

mozilla/js2/src/cpucfg.h

@@ -0,0 +1,191 @@
+/* -*- Mode: C; tab-width: 4; 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 cpucfg_h
+#define cpucfg_h
+
+#define JS_HAVE_LONG_LONG
+
+#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, or XP_UNIX"
+
+#endif
+
+#endif

mozilla/js2/src/debugger.cpp

@@ -0,0 +1,466 @@
+/* -*- Mode: C++; tab-width: 4; 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 the JavaScript 2 Prototype.
+ *
+ * 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 "world.h"
+#include "debugger.h"
+
+#include <string>
+#include <ctype.h>
+#include <assert.h>
+
+namespace JavaScript {
+namespace Debugger {
+
+    using namespace Interpreter;
+
+    /* keep in sync with list in debugger.h */
+    static const char *shell_cmds[][3] = {
+        {"assemble", "", 0},
+        {"ambiguous", "", "Test command for ambiguous command detection"},
+        {"ambiguous2", "", "Test command for ambiguous command detection"},
+        {"continue", "", "Continue execution until complete."},
+        {"dissassemble", "[start_pc] [end_pc]", "Dissassemble entire module, or subset of module."},
+        {"exit", "", 0},
+        {"help", "", "Display this message."},
+        {"istep", "", "Execute the current opcode and stop."},
+        {"let", "", "Set a debugger environment variable."},
+        {"print", "", 0},
+        {"register", "", "(nyi) Show the value of a single register or all registers, or set the value of a single register."},
+        {"step", "", "Execute the current JS statement and stop."},
+        {0, 0} /* sentry */
+    };
+
+    enum ShellVariable {
+        TRACE_SOURCE,
+        TRACE_ICODE,
+        VARIABLE_COUNT
+    };
+    
+    static const char *shell_vars[][3] = {
+        {"tracesource", "", "(bool) Show JS source while executing."},
+        {"traceicode", " ", "(bool) Show opcodes while executing."},
+        {0, 0} /* sentry */
+    };
+    
+    /* return true if str2 starts with/is str1
+     * XXX ignore case */
+    static bool
+    startsWith (const String &str1, const String &str2)
+    {
+        uint n;
+        size_t m = str1.size();
+
+        if (m > str2.size())
+            return false;
+
+        for (n = 0; n < m; ++n)
+            if (str1[n] != str2[n])
+                return false;
+        
+        return true;
+    }
+
+
+    /**
+     * locate the best match for |partial| in the command list |list|.
+     * if no matches are found, return |length|, if multiple matches are found,
+     * return |length| plus the number of ambiguous matches
+     */
+    static uint32
+    matchElement (const String &partial, const char *list[][3], size_t length)
+    {
+        uint32 ambig_matches = 0;
+        uint32 match = length;
+        
+        for (uint32 i = 0; i < length ; ++i)
+        {
+            String possibleMatch (widenCString(list[i][0]));
+            if (startsWith(partial, possibleMatch))
+            {
+                if (partial.size() == possibleMatch.size())
+                {
+                    /* exact match */
+                    ambig_matches = 0;
+                    return i;
+                }
+                else if (match == COMMAND_COUNT) /* no match yet */
+                    match = i;
+                else
+                    ++ambig_matches; /* something already matched, 
+                                      * ambiguous command */
+            }
+            
+        }
+
+        if (ambig_matches == 0)
+            return match;
+        else
+            return length + ambig_matches;
+        
+    }    
+
+    static void
+    showHelp(Formatter &out)
+    {
+        int i;
+        
+        out << "JavaScript 2.0 Debugger Help...\n\n";
+        
+        for (i = 0; shell_cmds[i][0] != 0; i++)
+        {
+            out << "Command : " << shell_cmds[i][0] << " " << 
+                shell_cmds[i][1] << "\n";
+
+            if (shell_cmds[i][2])
+                out << "Help    : " << shell_cmds[i][2] << "\n";
+            else
+                out << "Help    : (probably) Not Implemented.\n";
+        }
+    }
+
+    static uint32
+    getClosestSourcePosForPC (Context *cx, InstructionIterator pc)
+    {
+        ICodeModule *iCode = cx->getICode();
+        
+        if (iCode->mInstructionMap->begin() == iCode->mInstructionMap->end())
+            return NotABanana;
+            /*NOT_REACHED ("Instruction map is empty, waah.");*/
+
+        InstructionMap::iterator pos_iter =
+            iCode->mInstructionMap->upper_bound (pc - iCode->its_iCode->begin());
+        if (pos_iter != iCode->mInstructionMap->begin())
+            --pos_iter;
+    
+        return pos_iter->second;
+    }
+        
+    void
+    Shell::showSourceAtPC (Context *cx, InstructionIterator pc)
+    {
+        if (!mResolveFileCallback)
+        {
+            mErr << "Source not available (Debugger was improperly initialized.)\n";
+            return;
+        }
+
+        ICodeModule *iCode = cx->getICode();
+
+        String fn = iCode->getFileName();
+        const Reader *reader = mResolveFileCallback(fn);
+        if (!reader)
+        {
+            mErr << "Source not available.\n";
+            return;
+        }
+        
+        uint32 pos = getClosestSourcePosForPC(cx, pc);
+        if (pos == NotABanana)
+        {
+            mErr << "Map is empty, cannot display source.\n";
+            return;
+        }
+            
+        uint32 lineNum = reader->posToLineNum (pos);
+        const char16 *lineBegin, *lineEnd;
+
+        uint32 lineStartPos = reader->getLine (lineNum, lineBegin, lineEnd);
+        String sourceLine (lineBegin, lineEnd);
+        
+        mOut << fn << ":" << lineNum << " " << sourceLine << "\n";
+
+        uint padding = fn.length() + (uint32)(lineNum / 10) + 3;
+        uint i;        
+
+        for (i = 0; i < padding; i++)
+            mOut << " ";
+        
+        padding = (pos - lineStartPos);
+        for (i = 0; i < padding; i++)
+            mOut << ".";
+        
+        mOut << "^\n";
+        
+    }
+
+    void
+    Shell::showOpAtPC(Context* cx, InstructionIterator pc)
+    {
+        ICodeModule *iCode = cx->getICode();
+
+        if ((pc < iCode->its_iCode->begin()) ||
+            (pc >= iCode->its_iCode->end()))
+        {
+            mErr << "PC Out Of Range.";
+            return;
+        }
+
+        JSValues &registers = cx->getRegisters();
+
+        printFormat(mOut, "trace [%02u:%04u]: ",
+                    iCode->mID, (pc - iCode->its_iCode->begin()));
+        Instruction* i = *pc;
+        stdOut << *i;
+        if (i->op() != BRANCH && i->count() > 0) {
+            mOut << " [";
+            i->printOperands(stdOut, registers);
+            mOut << "]\n";
+        } else {
+            mOut << '\n';
+        }
+    }    
+
+    void
+    Shell::listen(Context* cx, Context::Event event)
+    {
+        InstructionIterator pc = cx->getPC();
+        
+        if (mTraceSource)
+            showSourceAtPC (cx, pc);
+        if (mTraceICode)
+            showOpAtPC (cx, pc);
+            
+        if (!(mStopMask & event))
+            return;
+
+        if ((mLastCommand == STEP) && (mLastICodeID == cx->getICode()->mID) &&
+            (mLastSourcePos == getClosestSourcePosForPC (cx, cx->getPC())))
+            /* we're in source-step mode, and the source position hasn't
+             * changed yet */
+            return;
+
+        if (!mTraceSource && !mTraceICode)
+            showSourceAtPC (cx, pc);
+                
+        static String lastLine(widenCString("help\n"));
+        String line;
+        LineReader reader(mIn);
+
+        do {
+            stdOut << "jsd";
+            if (mLastCommand != COMMAND_COUNT)
+                stdOut << " (" << shell_cmds[mLastCommand][0] << ") ";
+            stdOut << "> ";
+        
+            reader.readLine(line);
+
+            if (line[0] == uni::lf)
+                line = lastLine;
+            else
+                lastLine = line;
+
+        } while (doCommand(cx, line));
+    }
+
+
+    /**
+     * lex and execute the debugger command in |source|, return true if the
+     * command does not require the script being debugged to continue (eg, ask
+     * for more debugger input.)
+     */
+    bool
+    Shell::doCommand (Interpreter::Context *cx, const String &source)
+    {
+        Lexer lex (mWorld, source, widenCString("debugger console"), 0);
+        const String *cmd;
+        uint32 match;
+        bool rv = true;
+        
+        const Token &t = lex.get(true);
+
+        if (t.hasKind(Token::identifier))
+            cmd = &(t.getIdentifier());
+        else
+        {
+            mErr << "you idiot.\n";
+            return true;
+        }        
+
+        match = matchElement (*cmd, shell_cmds, (size_t)COMMAND_COUNT);
+        
+        if (match <= (uint32)COMMAND_COUNT)
+        {
+            switch ((ShellCommand)match)
+            {
+                case COMMAND_COUNT:
+                    mErr << "Unknown command '" << *cmd << "'.\n";
+                    break;
+
+                case AMBIGUOUS:
+                case AMBIGUOUS2:
+                    mErr << "I pity the foogoo.\n";
+                    break;
+
+                case CONTINUE:
+                    mStopMask &= (Context::EV_ALL ^ Context::EV_STEP);
+                    rv = false;
+                    break;
+
+                case DISSASSEMBLE:
+                    mOut << *cx->getICode();
+                    break;    
+
+                case HELP:
+                    showHelp (mOut);
+                    break;
+
+                case PRINT:
+                    doPrint (cx, lex);
+                    break;
+                    
+                case STEP:
+                    mStopMask |= Context::EV_STEP;
+                    rv = false;
+                    break;
+                    
+                case LET:
+                    doSetVariable (lex);
+                    break;
+
+                default:
+                    mErr << "Input '" << *cmd << "' matched unimplemented " <<
+                        "command '" << shell_cmds[match][0] << "'.\n";
+                    break;
+                    
+            }
+
+            mLastSourcePos = getClosestSourcePosForPC (cx, cx->getPC());
+            mLastICodeID = cx->getICode()->mID;
+            mLastCommand = (ShellCommand)match;
+
+        } else
+            mErr << "Ambiguous command '" << *cmd << "', " <<
+                (match - (uint32)COMMAND_COUNT + 1) << " similar commands.\n";
+
+        return rv;        
+    }
+
+    void
+    Shell::doSetVariable (Lexer &lex)
+    {
+        uint32 match;
+        const String *varname;        
+        const Token *t = &(lex.get(true));
+
+        if (t->hasKind(Token::identifier))
+            varname = &(t->getIdentifier());
+        else
+        {
+            mErr << "invalid variable name.\n";
+            return;
+        }        
+
+        match = matchElement (*varname, shell_vars, (size_t)VARIABLE_COUNT);
+
+        if (match <= (uint32)VARIABLE_COUNT)
+            switch ((ShellVariable)match)
+            {
+                case VARIABLE_COUNT:
+                    mErr << "Unknown variable '" << *varname << "'.\n";
+                    break;
+                    
+                case TRACE_SOURCE:
+                    t = &(lex.get(true));
+                    if (t->hasKind(Token::assignment))
+                        t = &(lex.get(true)); /* optional = */
+
+                    if (t->hasKind(Token::True))
+                        mTraceSource = true;
+                    else if (t->hasKind(Token::False))
+                        mTraceSource = false;
+                    else
+                        goto badval;
+                    break;
+
+                case TRACE_ICODE:
+                    t = &(lex.get(true));
+                    if (t->hasKind(Token::assignment))
+                        t = &(lex.get(true)); /* optional = */
+
+                    if (t->hasKind(Token::True))
+                        mTraceICode = true;
+                    else if (t->hasKind(Token::False))
+                        mTraceICode = false;
+                    else
+                        goto badval;
+                    break;
+
+                default:
+                    mErr << "Variable '" << *varname <<
+                        "' matched unimplemented variable '" << 
+                        shell_vars[match][0] << "'.\n";
+            }
+        else
+            mErr << "Ambiguous variable '" << *varname << "', " <<
+                (match - (uint32)COMMAND_COUNT + 1) << " similar variables.\n";
+        
+        return;
+        
+    badval:
+        mErr << "Invalid value for variable '" <<
+            shell_vars[(ShellVariable)match][0] << "'\n";
+
+    }
+    
+    void
+    Shell::doPrint (Context *, Lexer &lex)
+    {
+        const Token *t = &(lex.get(true));
+
+        if (!(t->hasKind(Token::identifier)))
+        {
+            mErr << "Invalid register name.\n";
+            return;
+        }
+
+/*
+        const StringAtom *name = &(t->getIdentifier());
+        
+        VariableMap::iterator i = ((cx->getICode())->itsVariables)->find(*name);
+//        if (i)
+            mOut << (*i).first << " = " << (*i).second << "\n";
+//        else
+//            mOut << "No " << *name << " defined.\n";
+  
+*/      
+    }
+    
+            
+            
+    
+} /* namespace Debugger */
+} /* namespace JavaScript */
+
+                    
+            
+        

mozilla/js2/src/debugger.h

@@ -0,0 +1,163 @@
+/* -*- Mode: C++; tab-width: 4; 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 the JavaScript 2 Prototype.
+ *
+ * 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 all vapor, don't take it to serious yet */
+
+#ifndef debugger_h
+#define debugger_h
+
+#include "utilities.h"
+#include "interpreter.h"
+
+#include <stdio.h>
+
+namespace JavaScript {
+namespace Debugger {
+
+    using namespace Interpreter;
+
+    class Shell;
+    
+    typedef const Reader *ResolveFileCallback (const String &fileName);
+    typedef bool DebuggerCommandCallback (Shell &debugger, const Lexer &lex);
+
+    class Breakpoint {
+    public:
+        /* representation of a breakpoint */
+        void set();
+        void clear();
+        bool getState();
+        InstructionIterator getPC();
+    };    
+
+    struct DebuggerCommand
+    {
+        DebuggerCommand(String aName, String aParamDesc, String aShortHelp,
+                        String aLongHelp = widenCString("No more help available."),
+                        DebuggerCommandCallback *aCommandFunction = 0) 
+            : mName(aName), mParamDesc(aParamDesc), mShortHelp(aShortHelp),
+              mLongHelp(aLongHelp), mCommandFunction(aCommandFunction) {}
+
+        String mName;
+        String mParamDesc;
+        String mShortHelp;
+        String mLongHelp;
+        DebuggerCommandCallback *mCommandFunction;
+    };
+
+    /* keep in sync with list in debugger.cpp */
+    enum ShellCommand {
+        ASSEMBLE,
+        AMBIGUOUS,
+        AMBIGUOUS2,
+        CONTINUE,
+        DISSASSEMBLE,
+        EXIT,
+        HELP,
+        ISTEP,
+        LET,
+        PRINT,
+        REGISTER,
+        STEP,
+        COMMAND_COUNT
+    };
+        
+    class Shell : public Context::Listener {
+    public:        
+        Shell (World &aWorld, FILE *aIn, Formatter &aOut, Formatter &aErr,
+               ResolveFileCallback *aCallback = 0) :
+            mWorld(aWorld), mIn(aIn), mOut(aOut), mErr(aErr),
+            mResolveFileCallback(aCallback), mStopMask(Context::EV_DEBUG),
+            mTraceSource(false), mTraceICode(false), mLastSourcePos(0),
+            mLastICodeID(NotABanana), mLastCommand(COMMAND_COUNT)
+        {
+        }
+
+        ~Shell ()
+        {
+        }
+        
+        ResolveFileCallback
+            *setResolveFileCallback (ResolveFileCallback  *aCallback)
+        {
+            ResolveFileCallback *rv = mResolveFileCallback;
+            mResolveFileCallback = aCallback;
+            return rv;
+        }
+        
+        void listen(Context *context, Context::Event event);
+        
+        /**
+         * install on a context
+         */
+        bool attachToContext (Context *aContext)
+        {
+            aContext->addListener (this);
+            return true;
+        }
+        
+        /**
+         * detach an icdebugger from a context
+         */
+        bool detachFromContext (Context *aContext)
+        {
+            aContext->removeListener (this);
+            return true;
+        }
+
+        FILE *getIStream() { return mIn; }
+        Formatter &getOStream() { return mOut; }
+        Formatter &getEStream() { return mErr; }
+
+    private:
+        bool doCommand (Context *cx, const String &aSource);
+        void doSetVariable (Lexer &lex);
+        void doPrint (Context *cx, Lexer &lex);
+
+        void showOpAtPC(Context* cx, InstructionIterator pc);
+        void showSourceAtPC(Context* cx, InstructionIterator pc);
+        
+        World &mWorld;
+        FILE *mIn;
+        Formatter &mOut, &mErr;
+        ResolveFileCallback *mResolveFileCallback;
+        uint32 mStopMask;
+        bool mTraceSource, mTraceICode;
+        uint32 mLastSourcePos, mLastICodeID;
+        ShellCommand mLastCommand;
+    };    
+
+} /* namespace Debugger */
+} /* namespace JavaScript */
+
+#endif /* debugger_h */

mozilla/js2/src/dependencies

@@ -0,0 +1,26 @@
+debugger.o: debugger.cpp world.h utilities.h systemtypes.h hash.h \
+ parser.h debugger.h interpreter.h jstypes.h gc_allocator.h vmtypes.h \
+ numerics.h jsclasses.h icode.h icodegenerator.h
+gc_allocator.o: gc_allocator.cpp gc_allocator.h gc_container.h
+hash.o: hash.cpp hash.h utilities.h systemtypes.h
+icodegenerator.o: icodegenerator.cpp numerics.h utilities.h \
+ systemtypes.h world.h hash.h parser.h vmtypes.h jstypes.h \
+ gc_allocator.h jsclasses.h icode.h icodegenerator.h interpreter.h
+interpreter.o: interpreter.cpp interpreter.h utilities.h systemtypes.h \
+ jstypes.h gc_allocator.h vmtypes.h numerics.h jsclasses.h world.h \
+ hash.h parser.h icode.h icodegenerator.h jsmath.h
+js2.o: js2.cpp world.h utilities.h systemtypes.h hash.h parser.h \
+ interpreter.h jstypes.h gc_allocator.h vmtypes.h numerics.h \
+ jsclasses.h icode.h icodegenerator.h debugger.h
+jsmath.o: jsmath.cpp jsmath.h jstypes.h utilities.h systemtypes.h \
+ gc_allocator.h
+jstypes.o: jstypes.cpp jstypes.h utilities.h systemtypes.h \
+ gc_allocator.h jsclasses.h numerics.h icodegenerator.h parser.h \
+ vmtypes.h world.h hash.h icode.h
+numerics.o: numerics.cpp numerics.h utilities.h systemtypes.h
+parser.o: parser.cpp numerics.h utilities.h systemtypes.h parser.h \
+ world.h hash.h
+utilities.o: utilities.cpp utilities.h systemtypes.h
+vmtypes.o: vmtypes.cpp utilities.h systemtypes.h vmtypes.h numerics.h \
+ jstypes.h gc_allocator.h jsclasses.h world.h hash.h parser.h icode.h
+world.o: world.cpp world.h utilities.h systemtypes.h hash.h parser.h

mozilla/js2/src/gc_allocator.cpp

@@ -0,0 +1,150 @@
+// -*- Mode: C++; tab-width: 4; indent-tabs-mode: t; 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 the JavaScript 2 Prototype.
+//
+// The Initial Developer of the Original Code is Netscape
+// Communications Corporation.  Portions created by Netscape are
+// Copyright (C) 2000 Netscape Communications Corporation. All
+// Rights Reserved.
+
+#include <iostream>
+#include <string>
+#include <vector>
+#include <algorithm>
+
+#include "gc_allocator.h"
+#include "gc_container.h"
+
+/*
+namespace JavaScript {
+
+template <class T>
+typename gc_allocator<T>::pointer
+gc_allocator<T>::allocate(gc_allocator<T>::size_type n, const void*)
+{
+	return static_cast<pointer>(GC_malloc(n*sizeof(T)));
+}
+
+template <class T>
+void gc_allocator<T>::deallocate(gc_allocator<T>::pointer ptr, gc_allocator<T>::size_type)
+{
+	// this can really be a NO-OP with the GC.
+	// ::GC_free(static_cast<void*>(ptr));
+}
+
+}
+ */
+
+// test driver for standalone GC development.
+
+namespace JS = JavaScript;
+
+template <class T>
+void* operator new(std::size_t, const JS::gc_allocator<T>& alloc)
+{
+	return alloc.allocate(1);
+}
+
+/**
+ * Define a C++ class that is garbage collectable, and wants to have its destructor
+ * called when it is finalized.
+ */
+class A {
+public:
+	typedef JS::gc_traits_finalizable<A> traits;
+	typedef JS::gc_allocator<A, traits> allocator;
+	friend struct traits;
+	
+	static int instances;
+	
+	void* operator new(std::size_t)
+	{
+		return allocator::allocate(1);
+	}
+	
+	A()
+	{
+		++instances;
+		std::cout << "A::A() here." << std::endl;
+	}
+
+protected:	
+	~A()
+	{
+		--instances;
+		std::cout << "A::~A() here." << std::endl;
+	}
+
+private:
+	// void operator delete(void*) {}
+};
+
+int A::instances = 0;
+
+int main(int /* argc */, char* /* argv[] */)
+{
+	using namespace std;
+	using namespace JS;
+
+	cout << "testing the GC allocator." << endl;
+
+#ifdef XP_MAC
+	// allocate a string, using the GC, and owned by an auto_ptr, that knows how to correctly destroy the string.
+	typedef gc_container<char>::string char_string;
+	typedef gc_allocator<char_string> char_string_alloc;
+	auto_ptr<char_string, char_string_alloc> ptr(new(char_string_alloc()) char_string("This is a garbage collectable string."));
+	const char_string& str = *ptr;
+	cout << str << endl;
+#endif
+	
+	// question, how can we partially evaluate a template?
+	// can we say, typedef template <class T> vector<typename T>.
+	// typedef vector<int, gc_allocator<int> > int_vector;
+	typedef gc_container<int>::vector int_vector;
+	
+	// generate 1000 random values.
+	int_vector values;
+	for (int i = 0; i < 1000; ++i) {
+		int value = rand() % 32767;
+		values.push_back(value);
+		// allocate a random amount of garbage.
+		if (!GC_malloc(static_cast<size_t>(value)))
+			cerr << "GC_malloc failed." << endl;
+		// allocate an object that has a finalizer to call its destructor.
+		A* a = new A();
+	}
+
+	// run a collection.
+	// gc_allocator<void>::collect();
+	GC_gcollect();
+
+	// print out instance count.
+	cout << "A::instances = " << A::instances << endl;
+	
+	// sort the values.
+	sort(values.begin(), values.end());
+	
+	// print the values.
+	int_vector::iterator iter = values.begin(), last = values.end();
+	cout << *iter++;
+	while (iter < last)
+		cout << ' ' << *iter++;
+	cout << endl;
+
+#ifdef XP_MAC	
+	// finally, print the string again.
+	cout << str << endl;
+#endif
+
+	return 0;
+}

mozilla/js2/src/gc_allocator.h

@@ -0,0 +1,178 @@
+// -*- Mode: C++; tab-width: 4; indent-tabs-mode: t; 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 the JavaScript 2 Prototype.
+//
+// The Initial Developer of the Original Code is Netscape
+// Communications Corporation.  Portions created by Netscape are
+// Copyright (C) 2000 Netscape Communications Corporation. All
+// Rights Reserved.
+
+#ifndef gc_allocator_h
+#define gc_allocator_h
+
+#include <memory>
+
+#ifndef _WIN32 // Microsoft VC6 bug: standard identifiers should be in std namespace
+using std::size_t;
+using std::ptrdiff_t;
+#endif
+
+namespace JavaScript {
+    extern "C" {
+        void* GC_malloc(size_t bytes);
+        void* GC_malloc_atomic(size_t bytes);
+        void GC_free(void* ptr);
+        void GC_gcollect(void);
+
+        typedef void (*GC_finalization_proc) (void* obj, void* client_data);
+        void GC_register_finalizer(void* obj, GC_finalization_proc proc, void* client_data,
+                                   GC_finalization_proc *old_proc, void* *old_client_data);
+    }
+
+    #if 0 && !defined(XP_MAC)
+    // for platforms where GC doesn't exist yet.
+    inline void* GC_malloc(size_t bytes) { return ::operator new(bytes); }
+    inline void* GC_malloc_atomic(size_t bytes) { return ::operator new(bytes); }
+    inline void GC_free(void* ptr) { operator delete(ptr); }
+    inline void GC_gcollect() {}
+    inline void GC_register_finalizer(void* obj, GC_finalization_proc proc, void* client_data,
+                                      GC_finalization_proc *old_proc, void* *old_client_data) {}
+    #endif
+    
+	/**
+	 * General case:  memory for type must be allocated as a conservatively
+	 * scanned block of memory.
+	 */
+	template <class T> struct gc_traits {
+		static T* allocate(size_t n) { return static_cast<T*>(GC_malloc(n * sizeof(T))); }
+	};
+	
+	/**
+	 * Specializations for blocks of atomic types:  the macro define_atomic_type(_type)
+	 * specializes gc_traits<T> for types that need not be scanned by the
+	 * GC. Implementors are free to define other types as atomic, if they are
+	 * guaranteed not to contain pointers.
+	 */
+	#define define_atomic_type(_type) 											\
+	template <> struct gc_traits<_type> {										\
+		static _type* allocate(size_t n)										\
+		{																		\
+			return static_cast<_type*>(GC_malloc_atomic(n * sizeof(_type)));	\
+		}																		\
+	};
+	
+	define_atomic_type(char)
+	define_atomic_type(unsigned char)
+	define_atomic_type(short)
+	define_atomic_type(unsigned short)
+	define_atomic_type(int)
+	define_atomic_type(unsigned int)
+	define_atomic_type(long)
+	define_atomic_type(unsigned long)
+	define_atomic_type(float)
+	define_atomic_type(double)
+	
+	#undef define_atomic_type
+	
+	/**
+	 * Traits for classes that need to have their destructor called
+	 * when reclaimed by the garbage collector.
+	 */
+	template <class T> struct gc_traits_finalizable {
+		static void finalizer(void* obj, void* client_data)
+		{
+			T* t = static_cast<T*>(obj);
+			size_t n = reinterpret_cast<size_t>(client_data);
+			for (size_t i = 0; i < n; ++i)
+				t[i].~T();
+		}
+		
+		static T* allocate(size_t n)
+		{
+			T* t = gc_traits<T>::allocate(n);
+			GC_finalization_proc old_proc; void* old_client_data;
+			GC_register_finalizer(t, &finalizer, reinterpret_cast<void*>(n), &old_proc, &old_client_data);
+			return t;
+		}
+	};
+	
+	/**
+	 * An allocator that can be used to allocate objects in the garbage collected heap.
+	 */
+	template <class T, class traits = gc_traits<T> > class gc_allocator {
+	public:
+		typedef T value_type;
+		typedef size_t size_type;
+		typedef ptrdiff_t difference_type;
+		typedef T *pointer;
+		typedef const T *const_pointer;
+		typedef T &reference;
+		typedef const T &const_reference;
+		
+		gc_allocator() {}
+		template<typename U, typename UTraits> gc_allocator(const gc_allocator<U, UTraits>&) {}
+		// ~gc_allocator() {}
+
+		static pointer address(reference r) { return &r; }
+		static const_pointer address(const_reference r) { return &r; }
+				
+		static pointer allocate(size_type n, const void* /* hint */ = 0) { return traits::allocate(n); }
+		static void deallocate(pointer, size_type) {}
+		
+		static void construct(pointer p, const T &val) { new(p) T(val);}
+		static void destroy(pointer p) { p->~T(); }
+		
+#if defined(__GNUC__) || defined(_WIN32)
+        static size_type max_size() { return size_type(-1) / sizeof(T); }
+#else
+		static size_type max_size() { return std::numeric_limits<size_type>::max() / sizeof(T); }
+#endif
+
+		template<class U> struct rebind { typedef gc_allocator<U> other; };
+
+#ifdef _WIN32
+		// raw byte allocator used on some platforms (grrr).
+		typedef char _Char[1];
+		static char* _Charalloc(size_type n) { return (char*) rebind<_Char>::other::allocate(n); }
+
+        // funky operator required for calling basic_string<T> constructor (grrr).
+        template<typename U, typename UTraits> int operator==(const gc_allocator<U, UTraits>&) { return 0; }
+#endif
+
+		// void* deallocate used on some platforms (grrr).
+		static void deallocate(void*, size_type) {}
+
+		static void collect() { GC_gcollect(); }
+	};
+
+    /**
+     * Generic base class for objects allocated using a gc_allocator. How they are allocated
+     * can be controlled by specializing gc_traits for the specific class.
+     */
+    template <typename T> class gc_object {
+    public:
+        void* operator new(size_t) { return gc_allocator<T>::allocate(1, 0); }
+        void operator delete(void* /* ptr */) {}
+    };
+
+    /**
+     * Simpler base class for classes that have no need to specialize allocation behavior.
+     */
+    class gc_base {
+    public:
+        void* operator new(size_t n) { return GC_malloc(n); }
+        void operator delete(void*) {}
+    };
+}
+
+#endif /* gc_allocator_h */

mozilla/js2/src/gc_container.h

@@ -0,0 +1,71 @@
+// -*- Mode: C++; tab-width: 4; indent-tabs-mode: t; 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 the JavaScript 2 Prototype.
+//
+// The Initial Developer of the Original Code is Netscape
+// Communications Corporation.  Portions created by Netscape are
+// Copyright (C) 2000 Netscape Communications Corporation. All
+// Rights Reserved.
+
+#ifndef gc_container_h
+#define gc_container_h
+
+#include "gc_allocator.h"
+
+#include <list>
+#include <vector>
+#include <string>
+
+#define LIST std::list
+#define VECTOR std::vector
+
+#if defined(__GNUC__)
+// grr, what kind of standard is this?
+#define STRING basic_string
+#define CHAR_TRAITS string_char_traits
+#else
+#define STRING std::basic_string
+#define CHAR_TRAITS std::char_traits
+#endif
+
+namespace JavaScript {
+	/**
+	 * Rebind some of the basic container types to use a GC_allocator.
+	 * What I really want is something more general, something like:
+	 * template <typename Container, typename T> class gc_rebind {
+	 *   typedef typename Container<T, gc_allocator<T> > other;
+	 * };
+	 * But I can't figure out how to do that with C++ templates.
+	 */
+	template <class T> struct gc_container {
+		typedef typename LIST<T, gc_allocator<T> > list;
+		typedef typename VECTOR<T, gc_allocator<T> > vector;
+		typedef typename STRING<T, CHAR_TRAITS<T>, gc_allocator<T> > string;
+	};
+
+	/**
+	 * But, it's pretty easy to do with macros:
+	 */
+	#define GC_CONTAINER(container, type) container<T, gc_allocator<T> >
+	
+	/*
+	// this gives an "unimplemented C++ feature" error using CWPro5.
+	// maybe someday.
+	template <template<class, class> typename Container, typename T>
+	struct gc_rebind {
+		typedef typename Container<T, gc_allocator<T> > container;
+	};
+	*/
+}
+
+#endif /* gc_container_h */

mozilla/js2/src/hash.cpp

@@ -0,0 +1,173 @@
+// -*- Mode: C++; tab-width: 4; 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 the JavaScript 2 Prototype.
+//
+// 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.
+
+#include "hash.h"
+#include <new>
+namespace JS = JavaScript;
+
+
+//
+// Hash Codes
+//
+
+
+// General-purpose null-terminated C string hash function
+JS::HashNumber JS::hashString(const char *s)
+{
+    HashNumber h = 0;
+    uchar ch;
+
+    while ((ch = (uchar)*s++) != 0)
+        h = (h >> 28) ^ (h << 4) ^ ch;
+    return h;
+}
+
+
+// General-purpose String hash function
+JS::HashNumber JS::hashString(const String &s)
+{
+    HashNumber h = 0;
+    String::const_iterator p = s.begin();
+    String::size_type n = s.size();
+
+    if (n < 16)
+		// Hash every character in a short string.
+		while (n--)
+		    h = (h >> 28) ^ (h << 4) ^ *p++;
+    else
+		// Sample a la java.lang.String.hash().
+		for (String::size_type m = n / 8; n >= m; p += m, n -= m)
+		    h = (h >> 28) ^ (h << 4) ^ *p;
+    return h;
+}
+
+
+//
+// Hash Tables
+//
+
+
+const uint minLgNBuckets = 4;
+
+
+JS::GenericHashTableIterator::GenericHashTableIterator(GenericHashTable &ht):
+		ht(ht), entry(0), nextBucket(ht.buckets)
+{
+	DEBUG_ONLY(++ht.nReferences);
+	operator++();
+}
+
+
+
+JS::GenericHashTableIterator &
+JS::GenericHashTableIterator::operator++()
+{
+	GenericHashEntry *e = entry;
+
+	if (e) {
+		backpointer = &e->next;
+		e = e->next;
+	}
+	if (!e) {
+		GenericHashEntry **const bucketsEnd = ht.bucketsEnd;
+		GenericHashEntry **bucket = nextBucket;
+
+		while (bucket != bucketsEnd) {
+			e = *bucket++;
+			if (e) {
+				backpointer = bucket-1;
+				break;
+			}
+		}
+		nextBucket = bucket;
+	}
+	entry = e;
+	return *this;
+}
+
+
+JS::GenericHashTable::GenericHashTable(uint32 nEntriesDefault):
+	nEntries(0)
+{
+	DEBUG_ONLY(nReferences = 0);
+
+	uint lgNBuckets = ceilingLog2(nEntriesDefault);
+	if (lgNBuckets < minLgNBuckets)
+		lgNBuckets = minLgNBuckets;
+	defaultLgNBuckets = lgNBuckets;
+
+	recomputeMinMaxNEntries(lgNBuckets);
+	uint32 nBuckets = JS_BIT(lgNBuckets);
+	buckets = new GenericHashEntry*[nBuckets];
+	// No exceptions after this point unless buckets is deleted.
+
+	bucketsEnd = buckets + nBuckets;
+	zero(buckets, bucketsEnd);
+}
+
+
+// Initialize shift, minNEntries, and maxNEntries based on the lg2 of the
+// number of buckets.
+void JS::GenericHashTable::recomputeMinMaxNEntries(uint lgNBuckets)
+{
+	uint32 nBuckets = JS_BIT(lgNBuckets);
+	shift = 32 - lgNBuckets;
+	maxNEntries = nBuckets;							// Maximum ratio is 100%
+	minNEntries = lgNBuckets <= defaultLgNBuckets ? 0 : 3*(nBuckets>>3);	// Minimum ratio is 37.5%
+}
+
+
+// Rehash the table.  This method cannot throw out-of-memory exceptions, so it is
+// safe to call from a destructor.
+void JS::GenericHashTable::rehash()
+{
+	uint32 newLgNBuckets = ceilingLog2(nEntries);
+	if (newLgNBuckets < defaultLgNBuckets)
+		newLgNBuckets = defaultLgNBuckets;
+	uint32 newNBuckets = JS_BIT(newLgNBuckets);
+	try {
+		GenericHashEntry **newBuckets = new GenericHashEntry*[newNBuckets];
+		// No exceptions after this point.
+
+		GenericHashEntry **newBucketsEnd = newBuckets + newNBuckets;
+		zero(newBuckets, newBucketsEnd);
+		recomputeMinMaxNEntries(newLgNBuckets);
+		GenericHashEntry **be = bucketsEnd;
+		for (GenericHashEntry **b = buckets; b != be; b++) {
+			GenericHashEntry *e = *b;
+			while (e) {
+				GenericHashEntry *next = e->next;
+				// Place e in the new set of buckets.
+				GenericHashEntry **nb = newBuckets + (e->keyHash*goldenRatio >> shift);
+				e->next = *nb;
+				*nb = e;
+				e = next;
+			}
+		}
+		delete[] buckets;
+		buckets = newBuckets;
+		bucketsEnd = newBucketsEnd;
+	} catch (std::bad_alloc) {
+		// Out of memory.  Ignore the error and just relax the resizing boundaries.
+		if (buckets + JS_BIT(newLgNBuckets) > bucketsEnd)
+			maxNEntries >>= 1;
+		else
+			minNEntries <<= 1;
+	}
+}

mozilla/js2/src/hash.h

@@ -0,0 +1,373 @@
+// -*- Mode: C++; tab-width: 4; 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 the JavaScript 2 Prototype.
+//
+// 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.
+
+#ifndef hash_h
+#define hash_h
+
+#include "utilities.h"
+
+namespace JavaScript {
+
+
+//
+// Hash Codes
+//
+
+	typedef uint32 HashNumber;
+
+	HashNumber hashString(const char *s);
+	HashNumber hashString(const String &s);
+
+
+	template<class Key>
+	struct Hash {
+		HashNumber operator()(Key key) const;
+	};
+
+	template<class Key>
+	inline HashNumber Hash<Key>::operator()(Key key) const
+	{
+		return hashString(key);
+	}
+
+
+	const HashNumber goldenRatio = 0x9E3779B9U;
+
+
+//
+// Private
+//
+
+	// Base class for user-defined hash entries.
+	// private
+	class GenericHashEntry {
+	  public:
+	    GenericHashEntry *next;         // Link to next entry in the same bucket
+	    const HashNumber keyHash;       // This entry's hash value
+
+	  protected:
+		explicit GenericHashEntry(HashNumber keyHash): next(0), keyHash(keyHash) {}
+
+	    friend class GenericHashTable;
+	};
+
+
+	// private
+	class GenericHashTableIterator;
+	class GenericHashTable {
+	  protected:
+	    GenericHashEntry **buckets;		// Vector of hash buckets
+	    GenericHashEntry **bucketsEnd;	// Pointer past end of vector of hash buckets
+	    uint defaultLgNBuckets;			// lg2 of minimum number of buckets for which to size the table
+	    uint32 nEntries;				// Number of entries in table
+	    uint32 minNEntries;				// Minimum number of entries without rehashing
+	    uint32 maxNEntries;				// Maximum number of entries without rehashing
+	    uint32 shift;					// 32 - lg2(number of buckets)
+	  #ifdef DEBUG
+	  public:
+	    uint32 nReferences;				// Number of iterators and references currently pointing to this hash table
+	  #endif
+
+	  public:
+		explicit GenericHashTable(uint32 nEntriesDefault);
+		~GenericHashTable() {
+		  #ifndef _WIN32
+			ASSERT(nReferences == 0);
+		  #endif
+			delete[] buckets;
+		}
+
+		void recomputeMinMaxNEntries(uint lgNBuckets);
+		void rehash();
+		void maybeGrow() {if (nEntries > maxNEntries) rehash();}
+		void maybeShrink() {if (nEntries < minNEntries) rehash();}
+		
+		friend class GenericHashTableIterator;
+
+		typedef GenericHashTableIterator Iterator;
+	};
+
+	// This ought to be GenericHashTable::Iterator, but this doesn't work due to a
+	// Microsoft VC6 bug.
+	class GenericHashTableIterator {
+	  protected:
+		GenericHashTable &ht;			// Hash table being iterated
+		GenericHashEntry *entry;		// Current entry; nil if done
+		GenericHashEntry **backpointer;	// Pointer to pointer to current entry
+		GenericHashEntry **nextBucket;	// Next bucket; pointer past end of vector of hash buckets if done
+	  public:
+		explicit GenericHashTableIterator(GenericHashTable &ht);
+		~GenericHashTableIterator() {ht.maybeShrink(); DEBUG_ONLY(--ht.nReferences);}
+
+		operator bool() const {return entry != 0;}	// Return true if there are entries left.
+		GenericHashTableIterator &operator++();
+	};
+
+
+//
+// Hash Tables
+//
+
+	template<class Data, class Key, class H = Hash<Key> >
+	class HashTable: private GenericHashTable {
+		H hasher;						// Hash function
+
+		struct Entry: public GenericHashEntry {
+			Data data;
+			
+			Entry(HashNumber keyHash, Key key): GenericHashEntry(keyHash), data(key) {}
+			template<class Value>
+			Entry(HashNumber keyHash, Key key, Value value): GenericHashEntry(keyHash), data(key, value) {}
+		};
+
+	  public:
+		class Reference {
+#ifdef _WIN32 // Microsoft VC6 bug: friend declarations to inner classes don't work
+		  public:
+#endif
+			Entry *entry;						// Current entry; nil if done
+			GenericHashEntry **backpointer;		// Pointer to pointer to current entry
+			const HashNumber keyHash;			// This entry's key's hash value
+		  #ifdef DEBUG
+			GenericHashTable *ht;				// Hash table to which this Reference points
+		  #endif
+
+		  public:
+#ifndef _WIN32
+			Reference(HashTable &ht, Key key);	// Search for an entry with the given key.
+#else // Microsoft VC6 bug: VC6 doesn't allow this to be defined outside the class
+			Reference(HashTable &ht, Key key): keyHash(ht.hasher(key)) {
+			#ifdef DEBUG
+				Reference::ht = &ht;
+				++ht.nReferences;
+			#endif
+				HashNumber kh = keyHash;
+				HashNumber h = kh*goldenRatio >> ht.shift;
+				GenericHashEntry **bp = ht.buckets + h;
+				Entry *e;
+
+				while ((e = static_cast<Entry *>(*bp)) != 0 && !(e->keyHash == kh && e->data == key))
+					bp = &e->next;
+				entry = e;
+				backpointer = bp;
+			}
+#endif
+		  private:
+		    Reference(const Reference&);		// No copy constructor
+		    void operator=(const Reference&);	// No assignment operator
+		  public:
+		  #if defined(DEBUG) && !defined(_WIN32)
+			~Reference() {if (ht) --ht->nReferences;}
+		  #endif
+			
+			operator bool() const {return entry != 0;}	// Return true if an entry was found.
+			Data &operator*() const {ASSERT(entry); return entry->data;}	// Return the data of the entry that was found.
+			
+			friend class HashTable;
+		};
+
+		class Iterator: public GenericHashTableIterator {
+		  public:
+			explicit Iterator(HashTable &ht): GenericHashTableIterator(ht) {}
+		  private:
+		    Iterator(const Iterator&);			// No copy constructor
+		    void operator=(const Iterator&);	// No assignment operator
+		  public:
+
+			// Go to next entry.
+			Iterator &operator++() {return *static_cast<Iterator*>(&GenericHashTableIterator::operator++());}
+			Data &operator*() const {ASSERT(entry); return static_cast<Entry *>(entry)->data;}	// Return current entry's data.
+			void erase();
+		};
+
+		HashTable(uint32 nEntriesDefault = 0, const H &hasher = H()): GenericHashTable(nEntriesDefault), hasher(hasher) {}
+		~HashTable();
+
+		template<class Value> Data &insert(Reference &r, Key key, Value value);
+		Data &insert(Reference &r, Key key);
+		Data &insert(Key key);
+		void erase(Reference &r);
+		void erase(Key key);
+		Data *operator[](Key key);
+		
+		friend class Reference;
+		friend class Iterator;
+
+#ifndef _WIN32
+		template<class Value> Data &insert(Key key, Value value);
+#else // Microsoft VC6 bug: VC6 doesn't allow this to be defined outside the class
+		template<class Value> Data &insert(Key key, Value value) {
+			Reference r(*this, key);
+			if (r)
+				return *r = value;
+			else
+				return insert(r, key, value);
+		}
+#endif
+	};
+
+
+//
+// Implementation
+//
+
+	template<class Data, class Key, class H>
+	HashTable<Data, Key, H>::~HashTable()
+	{
+		GenericHashEntry **be = bucketsEnd;
+		for (GenericHashEntry **b = buckets; b != be; b++) {
+			Entry *e = static_cast<Entry *>(*b);
+			while (e) {
+				Entry *next = static_cast<Entry *>(e->next);
+				delete e;
+				e = next;
+			}
+		}
+	}
+
+
+#ifndef _WIN32
+	template<class Data, class Key, class H>
+	HashTable<Data, Key, H>::Reference::Reference(HashTable &ht, Key key):
+		keyHash(ht.hasher(key))
+	{
+	#ifdef DEBUG
+		Reference::ht = &ht;
+		++ht.nReferences;
+	#endif
+		HashNumber kh = keyHash;
+		HashNumber h = kh*goldenRatio >> ht.shift;
+		GenericHashEntry **bp = ht.buckets + h;
+		Entry *e;
+
+		while ((e = static_cast<Entry *>(*bp)) != 0 && !(e->keyHash == kh && e->data == key))
+			bp = &e->next;
+		entry = e;
+		backpointer = bp;
+	}
+
+
+	// Insert the given key/value pair into the hash table.  Reference must
+	// be the result of an unsuccessful search for that key in the table.
+	// The reference is not valid after this method is called.
+	// Return a reference to the new entry's value.
+	template<class Data, class Key, class H> template<class Value>
+	inline Data &HashTable<Data, Key, H>::insert(Reference &r, Key key, Value value)
+	{
+		ASSERT(r.ht == this && !r.entry);
+		Entry *e = new Entry(r.keyHash, key, value);
+		*r.backpointer = e;
+		++nEntries;
+		maybeGrow();
+	#ifdef DEBUG
+		--r.ht->nReferences;
+		r.ht = 0;
+	#endif
+		return e->data;
+	}
+#endif
+
+	// Same as above but without a Value argument.
+	template<class Data, class Key, class H>
+	inline Data &HashTable<Data, Key, H>::insert(Reference &r, Key key)
+	{
+		ASSERT(r.ht == this && !r.entry);
+		Entry *e = new Entry(r.keyHash, key);
+		*r.backpointer = e;
+		++nEntries;
+		maybeGrow();
+	#ifdef DEBUG
+		--r.ht->nReferences;
+		r.ht = 0;
+	#endif
+		return e->data;
+	}
+
+
+
+	// Insert the given key/value pair into the hash table.  If an entry with a
+	// matching key already exists, replace that entry's value.
+	// Return a reference to the new entry's value.
+#ifndef _WIN32 // Microsoft VC6 bug: VC6 doesn't allow this to be defined outside the class
+	template<class Data, class Key, class H> template<class Value>
+	Data &HashTable<Data, Key, H>::insert(Key key, Value value)
+	{
+		Reference r(*this, key);
+		if (r)
+			return *r = value;
+		else
+			return insert(r, key, value);
+	}
+#endif
+
+	// Same as above but without a Value argument.
+	template<class Data, class Key, class H>
+	Data &HashTable<Data, Key, H>::insert(Key key)
+	{
+		Reference r(*this, key);
+		if (r)
+			return *r;
+		else
+			return insert(r, key);
+	}
+
+
+	// Reference r must point to an existing entry.  Delete that entry.
+	// The reference is not valid after this method is called.
+	template<class Data, class Key, class H>
+	inline void HashTable<Data, Key, H>::erase(Reference &r)
+	{
+		Entry *e = r.entry;
+		ASSERT(r.ht == this && e);
+		*r.backpointer = e->next;
+		--nEntries;
+		delete e;
+	#ifdef DEBUG
+		--r.ht->nReferences;
+		r.ht = 0;
+	#endif
+		maybeShrink();
+	}
+
+
+	// Remove the hash table entry, if any, matching the given key.
+	template<class Data, class Key, class H>
+	void HashTable<Data, Key, H>::erase(Key key)
+	{
+		Reference r(*this, key);
+		if (r)
+			erase(r);
+	}
+
+
+	// Return a pointer to the value of the hash table entry matching the given key.
+	// Return nil if no entry matches.
+	template<class Data, class Key, class H>
+	Data *HashTable<Data, Key, H>::operator[](Key key)
+	{
+		Reference r(*this, key);
+		if (r)
+			return &*r;
+		else
+			return 0;
+	}
+
+}
+
+#endif

mozilla/js2/src/icodegenerator.h

@@ -0,0 +1,306 @@
+/* -*- Mode: C++; tab-width: 4; 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 the JavaScript 2 Prototype.
+ *
+ * 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 icodegenerator_h
+#define icodegenerator_h
+
+#include <vector>
+#include <stack>
+
+#include "utilities.h"
+#include "parser.h"
+#include "vmtypes.h"
+#include "jsclasses.h"
+
+
+namespace JavaScript {
+namespace ICG {
+    
+    using namespace VM;
+    using namespace JSTypes;
+    using namespace JSClasses;
+    
+    typedef std::map<String, TypedRegister, std::less<String> > VariableList;
+    typedef std::map<uint32, uint32, std::less<uint32> > InstructionMap;
+   
+
+    class ICodeModule {
+    public:
+        ICodeModule(InstructionStream *iCode, VariableList *variables,
+                    uint32 maxRegister, uint32 maxParameter,
+                    InstructionMap *instructionMap) :
+            its_iCode(iCode), itsVariables(variables),
+            itsParameterCount(maxParameter), itsMaxRegister(maxRegister),
+            mID(++sMaxID), mInstructionMap(instructionMap) { }
+        ~ICodeModule()
+        {
+            delete its_iCode;
+            delete itsVariables;
+            delete mInstructionMap;
+        }
+
+        Formatter& print(Formatter& f);
+        void setFileName (String aFileName) { mFileName = aFileName; }
+        String getFileName () { return mFileName; }
+        
+        InstructionStream *its_iCode;
+        VariableList *itsVariables;
+        uint32 itsParameterCount;
+        uint32 itsMaxRegister;
+        uint32 mID;
+        InstructionMap *mInstructionMap;
+        String mFileName;
+
+        static uint32 sMaxID;
+        
+    };
+
+    typedef std::vector<const StringAtom *> LabelSet;
+    class LabelEntry {
+    public:
+        LabelEntry(LabelSet *labelSet, Label *breakLabel) 
+            : labelSet(labelSet), breakLabel(breakLabel), continueLabel(NULL) { }
+        LabelEntry(LabelSet *labelSet, Label *breakLabel, Label *continueLabel) 
+            : labelSet(labelSet), breakLabel(breakLabel), continueLabel(continueLabel) { }
+
+        bool containsLabel(const StringAtom *label);
+
+        LabelSet *labelSet;
+        Label *breakLabel;
+        Label *continueLabel;
+    };
+    typedef std::vector<LabelEntry *> LabelStack;
+
+    Formatter& operator<<(Formatter &f, ICodeModule &i);
+
+    /****************************************************************/
+    
+    // An ICodeGenerator provides the interface between the parser and the
+    // interpreter. The parser constructs one of these for each
+    // function/script, adds statements and expressions to it and then
+    // converts it into an ICodeModule, ready for execution.
+    
+    class ICodeGenerator {
+    public:
+        typedef enum { kNoFlags = 0, kIsTopLevel = 0x01, kIsStaticMethod = 0x02, kIsWithinWith = 0x04 } ICodeGeneratorFlags;
+    private:
+        InstructionStream *iCode;
+        bool iCodeOwner;
+        LabelList labels;
+        
+        Register mTopRegister;              // highest (currently) alloacated register
+        uint32   mParameterCount;           // number of parameters declared for the function
+                                            // these must come before any variables declared.
+        TypedRegister mExceptionRegister;   // reserved to carry the exception object.
+        VariableList *variableList;         // name|register pair for each variable
+
+        World *mWorld;                      // used to register strings
+        JSScope *mGlobal;                   // the scope for compiling within
+        LabelStack mLabelStack;             // stack of LabelEntry objects, one per nested looping construct
+                                            // maps source position to instruction index
+        InstructionMap *mInstructionMap;
+
+        JSClass *mClass;                    // enclosing class when generating code for methods
+        ICodeGeneratorFlags mFlags;         // assorted flags
+
+        std::vector<bool> mPermanentRegister;
+
+        Register getTempRegister() 
+        { 
+            while (mTopRegister < mPermanentRegister.size())
+                if (!mPermanentRegister[mTopRegister]) 
+                    return mTopRegister++;
+                else
+                    ++mTopRegister;
+            mPermanentRegister.resize(mTopRegister + 1);
+            mPermanentRegister[mTopRegister] = false;
+            return mTopRegister++;
+        }
+
+        void resetTopRegister() { mTopRegister = mParameterCount; }
+        void resetStatement()   { resetTopRegister(); }
+
+        TypedRegister allocateRegister(const StringAtom& name, JSType *type);
+
+        void setRegisterForVariable(const StringAtom& name, TypedRegister r) { (*variableList)[name] = r; }
+
+        JSType *findType(const StringAtom& typeName);
+
+
+
+
+
+
+        void setLabel(Label *label);
+        
+        void jsr(Label *label)                  { iCode->push_back(new Jsr(label)); }
+        void rts()                              { iCode->push_back(new Rts()); }
+        void branch(Label *label);
+        GenericBranch *branchTrue(Label *label, TypedRegister condition);
+        GenericBranch *branchFalse(Label *label, TypedRegister condition);
+        
+        void beginTry(Label *catchLabel, Label *finallyLabel)
+                                                { iCode->push_back(new Tryin(catchLabel, finallyLabel)); }
+        void endTry()                           { iCode->push_back(new Tryout()); }
+
+        void beginWith(TypedRegister obj)       { iCode->push_back(new Within(obj)); }
+        void endWith()                          { iCode->push_back(new Without()); }
+        
+
+
+        void startStatement(uint32 pos)         { (*mInstructionMap)[iCode->size()] = pos; }
+
+        ICodeOp mapExprNodeToICodeOp(ExprNode::Kind kind);
+
+
+        bool isTopLevel()       { return (mFlags & kIsTopLevel) != 0; }
+        bool isWithinWith()     { return (mFlags & kIsWithinWith) != 0; }
+        bool isStaticMethod()   { return (mFlags & kIsStaticMethod) != 0; }
+
+        void setFlag(uint32 flag, bool v) { mFlags = (ICodeGeneratorFlags)((v) ? mFlags | flag : mFlags & ~flag); }
+
+
+        typedef enum {Var, Property, Slot, Static, Constructor, Name, Method} LValueKind;
+
+        LValueKind resolveIdentifier(const StringAtom &name, TypedRegister &v, uint32 &slotIndex);
+        TypedRegister handleIdentifier(IdentifierExprNode *p, ExprNode::Kind use, ICodeOp xcrementOp, TypedRegister ret, RegisterList *args);
+        TypedRegister handleDot(BinaryExprNode *b, ExprNode::Kind use, ICodeOp xcrementOp, TypedRegister ret, RegisterList *args);
+        ICodeModule *genFunction(FunctionStmtNode *f, bool isConstructor, JSClass *superClass);
+    
+    public:
+
+        ICodeGenerator(World *world, JSScope *global, JSClass *aClass = NULL, ICodeGeneratorFlags flags = kIsTopLevel);
+        
+        ~ICodeGenerator()
+        {
+            if (iCodeOwner) {
+                delete iCode;
+                delete mInstructionMap;
+            }
+        }
+                
+        ICodeModule *complete();
+
+        TypedRegister genExpr(ExprNode *p, 
+                                bool needBoolValueInBranch = false, 
+                                Label *trueBranch = NULL, 
+                                Label *falseBranch = NULL);
+        TypedRegister genStmt(StmtNode *p, LabelSet *currentLabelSet = NULL);
+
+        void returnStmt(TypedRegister r);
+        void returnStmt();
+        void throwStmt(TypedRegister r)         { iCode->push_back(new Throw(r)); }
+        void debuggerStmt()                     { iCode->push_back(new Debugger()); }
+
+        TypedRegister allocateVariable(const StringAtom& name);
+        TypedRegister allocateVariable(const StringAtom& name, const StringAtom& typeName);
+
+        TypedRegister findVariable(const StringAtom& name)
+        {
+            VariableList::iterator i = variableList->find(name);
+            return (i == variableList->end()) ? TypedRegister(NotARegister, &None_Type) : (*i).second;
+        }
+        
+        TypedRegister allocateParameter(const StringAtom& name)         { mParameterCount++; return allocateRegister(name, &Any_Type); }
+        TypedRegister allocateParameter(const StringAtom& name, const StringAtom& typeName) 
+                                                                        { mParameterCount++; return allocateRegister(name, findType(typeName)); }
+        TypedRegister allocateParameter(const StringAtom& name, JSType *type) 
+                                                                        { mParameterCount++; return allocateRegister(name, type); }
+        
+        Formatter& print(Formatter& f);
+        
+        TypedRegister op(ICodeOp op, TypedRegister source);
+        TypedRegister op(ICodeOp op, TypedRegister source1, TypedRegister source2);
+        TypedRegister binaryOp(ICodeOp op, TypedRegister source1, TypedRegister source2);
+        TypedRegister call(TypedRegister base, TypedRegister target, RegisterList *args);
+        TypedRegister getMethod(TypedRegister thisArg, uint32 slotIndex);
+
+        void move(TypedRegister destination, TypedRegister source);
+        TypedRegister logicalNot(TypedRegister source);
+        TypedRegister test(TypedRegister source);
+        
+        TypedRegister loadBoolean(bool value);
+        TypedRegister loadImmediate(double value);
+        TypedRegister loadString(const String &value);
+        TypedRegister loadString(const StringAtom &name);
+                
+        TypedRegister newObject(TypedRegister constructor);
+        TypedRegister newArray();
+        TypedRegister newFunction(ICodeModule *icm);
+        TypedRegister newClass(JSClass *clazz);
+
+        TypedRegister cast(TypedRegister arg, JSType *toType);
+        
+        TypedRegister super();
+        TypedRegister loadName(const StringAtom &name, JSType *t = &Any_Type);
+        void saveName(const StringAtom &name, TypedRegister value);
+        TypedRegister nameXcr(const StringAtom &name, ICodeOp op);
+       
+        TypedRegister deleteProperty(TypedRegister base, const StringAtom &name);
+        TypedRegister getProperty(TypedRegister base, const StringAtom &name);
+        void setProperty(TypedRegister base, const StringAtom &name, TypedRegister value);
+        TypedRegister propertyXcr(TypedRegister base, const StringAtom &name, ICodeOp op);
+        
+        TypedRegister getStatic(JSClass *base, const String &name);
+        void setStatic(JSClass *base, const StringAtom &name, TypedRegister value);
+        TypedRegister staticXcr(JSClass *base, const StringAtom &name, ICodeOp op);
+        
+        TypedRegister getElement(TypedRegister base, TypedRegister index);
+        void setElement(TypedRegister base, TypedRegister index, TypedRegister value);
+        TypedRegister elementXcr(TypedRegister base, TypedRegister index, ICodeOp op);
+
+        TypedRegister getSlot(TypedRegister base, uint32 slot);
+        void setSlot(TypedRegister base, uint32 slot, TypedRegister value);
+        TypedRegister slotXcr(TypedRegister base, uint32 slot, ICodeOp op);
+
+        TypedRegister varXcr(TypedRegister var, ICodeOp op);
+        
+        InstructionStream *getICode()   { return iCode; }
+        
+        Label *getLabel();
+
+    };
+
+    Formatter& operator<<(Formatter &f, ICodeGenerator &i);
+    Formatter& operator<<(Formatter &f, ICodeModule &i);
+    /*
+      std::ostream &operator<<(std::ostream &s, ICodeGenerator &i);
+      std::ostream &operator<<(std::ostream &s, StringAtom &str);
+    */
+
+
+
+} /* namespace IGC */
+} /* namespace JavaScript */
+
+#endif /* icodegenerator_h */

mozilla/js2/src/interpreter.h

@@ -0,0 +1,113 @@
+// -*- Mode: C++; tab-width: 4; 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 the JavaScript 2 Prototype.
+//
+// The Initial Developer of the Original Code is Netscape
+// Communications Corporation.  Portions created by Netscape are
+// Copyright (C) 2000 Netscape Communications Corporation. All
+// Rights Reserved.
+
+#ifndef interpreter_h
+#define interpreter_h
+
+#include "utilities.h"
+#include "jstypes.h"
+#include "vmtypes.h"
+#include "icodegenerator.h"
+#include "gc_allocator.h"
+
+namespace JavaScript {
+namespace Interpreter {
+
+    using namespace ICG;
+    using namespace JSTypes;
+
+    struct Activation;
+    
+    struct Linkage;
+
+    class Context : public gc_base {
+        void initContext();
+    public:
+        explicit Context(World& world, JSScope* aGlobal)
+            : mWorld(world), mGlobal(aGlobal), mLinkage(0), mActivation(0), mHasOperatorsPackageLoaded(false) { initContext(); }
+
+        World& getWorld()           { return mWorld; }
+        JSScope* getGlobalObject()  { return mGlobal; }
+        InstructionIterator getPC() { return mPC; }
+        
+        JSValues& getRegisters();
+        ICodeModule* getICode();
+
+        enum Event {
+            EV_NONE     = 0x0000,
+            EV_STEP     = 0x0001,
+            EV_THROW    = 0x0002,
+            EV_DEBUG    = 0x0004,
+            EV_ALL      = 0xffff
+        };
+    
+        class Listener {
+        public:
+            virtual void listen(Context *context, Event event) = 0;
+        };
+    
+        void addListener(Listener* listener);
+        void removeListener(Listener* listener);
+    
+        class Frame {
+        public:
+            virtual Frame* getNext() = 0;
+            virtual void getState(InstructionIterator& pc, JSValues*& registers,
+                                  ICodeModule*& iCode) = 0;
+        };
+    
+        Frame* getFrames();
+
+        JSValue interpret(ICodeModule* iCode, const JSValues& args);
+        void doCall(JSFunction *target, Instruction *pc);
+
+        ICodeModule* compile(const String &source);
+        ICodeModule* genCode(StmtNode *p, const String &fileName);
+        JSValue readEvalFile(FILE* in, const String& fileName);
+
+        void addBinaryOperator(BinaryOperator::BinaryOp op, BinaryOperator *fn) { mBinaryOperators[op].push_back(fn); }
+        const JSValue findBinaryOverride(JSValue &operand1, JSValue &operand2, BinaryOperator::BinaryOp op);
+
+
+        bool hasOperatorsPackageLoaded()    { return mHasOperatorsPackageLoaded; }
+
+    private:
+        void broadcast(Event event);
+        void initOperatorsPackage();
+
+    private:
+        World& mWorld;
+        JSScope* mGlobal;
+        Linkage* mLinkage;
+        typedef std::vector<Listener*, gc_allocator<Listener*> > ListenerList;
+        typedef ListenerList::iterator ListenerIterator;
+        ListenerList mListeners;
+        Activation* mActivation;
+        bool mHasOperatorsPackageLoaded;
+
+        InstructionIterator mPC;
+        
+        BinaryOperatorList mBinaryOperators[BinaryOperator::BinaryOperatorCount];
+
+    }; /* class Context */
+
+} /* namespace Interpreter */
+} /* namespace JavaScript */
+
+#endif /* interpreter_h */

mozilla/js2/src/jsclasses.h

@@ -0,0 +1,316 @@
+/* -*- Mode: C++; tab-width: 4; 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 the JavaScript 2 Prototype.
+ *
+ * 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 jsclasses_h
+#define jsclasses_h
+
+#include "jstypes.h"
+
+namespace JavaScript {
+namespace JSClasses {
+
+    using JSTypes::JSValue;
+    using JSTypes::JSObject;
+    using JSTypes::JSType;
+    using JSTypes::JSScope;
+    using JSTypes::JSFunction;
+    using ICG::ICodeModule;
+    
+
+    struct JSSlot {
+        typedef enum { kNoFlag = 0, kIsConstructor = 0x01 } SlotFlags;   // <-- readonly, enumerable etc
+
+        JSType* mType;
+        uint32 mIndex;
+        SlotFlags mFlags;
+        
+        JSSlot() : mType(0), mFlags(kNoFlag)
+        {
+        }
+
+        bool isConstructor() const          { return (mFlags & kIsConstructor) != 0; }
+    };
+
+#if defined(XP_MAC)
+    // copied from default template parameters in map.
+    typedef gc_allocator<std::pair<const String, JSSlot> > gc_slot_allocator;
+#elif defined(XP_UNIX)
+    typedef JSTypes::gc_map_allocator gc_slot_allocator;
+#elif defined(_WIN32)
+    typedef gc_allocator<JSSlot> gc_slot_allocator;
+#endif
+
+    typedef std::map<String, JSSlot, std::less<const String>, gc_slot_allocator> JSSlots;
+
+
+    typedef std::pair<String, JSFunction*> MethodEntry;
+    typedef std::vector<MethodEntry> JSMethods;
+
+    /**
+     * Represents a class in the JavaScript 2 (ECMA 4) language.
+     * Since a class defines a scope, and is defined in a scope,
+     * a new scope is created whose parent scope is the scope of
+     * class definition.
+     */
+    class JSClass : public JSType {
+    protected:
+        JSScope* mScope;        
+        uint32 mSlotCount;
+        JSSlots mSlots;
+        uint32 mStaticCount;
+        JSSlots mStaticSlots;
+        JSValue* mStaticData;
+        JSMethods mMethods;
+    public:
+        JSClass(JSScope* scope, const String& name, JSClass* superClass = 0)
+            :   JSType(name, superClass),
+                mScope(new JSScope(scope)),
+                mSlotCount(superClass ? superClass->mSlotCount : 0),
+                mStaticCount(0),
+                mStaticData(0)
+        {
+            if (superClass) {
+                   // inherit superclass methods
+                JSMethods::iterator end = superClass->mMethods.end();
+                for (JSMethods::iterator i = superClass->mMethods.begin(); i != end; i++)
+                    mMethods.push_back(*i);
+            }    
+        }
+        
+        JSClass* getSuperClass()
+        {
+            return static_cast<JSClass*>(mBaseType);
+        }
+        
+        JSScope* getScope()
+        {
+            return mScope;
+        }
+
+        const JSSlot& defineSlot(const String& name, JSType* type)
+        {
+            JSSlot& slot = mSlots[name];
+            ASSERT(slot.mType == 0);
+            slot.mType = type;
+            slot.mIndex = mSlotCount++; // starts at 0.
+            return slot;
+        }
+        
+        const JSSlot& getSlot(const String& name)
+        {
+            return mSlots[name];
+        }
+        
+        bool hasSlot(const String& name)
+        {
+            return (mSlots.find(name) != mSlots.end());
+        }
+        
+        JSSlots& getSlots()
+        {
+            return mSlots;
+        }
+        
+        uint32 getSlotCount()
+        {
+            return mSlotCount;
+        }
+        
+        /**
+         * Define a static/class variable.
+         */
+        const JSSlot& defineStatic(const String& name, JSType* type)
+        {
+            JSSlot& slot = mStaticSlots[name];
+            ASSERT(slot.mType == 0);
+            slot.mType = type;
+            slot.mIndex = mStaticCount++;
+            return slot;
+        }
+
+        const JSSlot& defineConstructor(const String& name)
+        {
+            JSSlot& slot = mStaticSlots[name];
+            ASSERT(slot.mType == 0);
+            slot.mType = &JSTypes::Function_Type;
+            slot.mIndex = mStaticCount++;
+            slot.mFlags = JSSlot::kIsConstructor;
+            return slot;
+        }
+        
+        const JSSlot& getStatic(const String& name)
+        {
+            return mStaticSlots[name];
+        }
+        
+        bool hasStatic(const String& name, JSType*& type, bool &isConstructor)
+        {
+            JSSlots::const_iterator i = mStaticSlots.find(name);
+            if (i != mStaticSlots.end()) {
+                type = i->second.mType;
+                isConstructor = i->second.isConstructor();
+                return true;
+            }
+            return false;
+        }
+
+        bool hasStatic(const String& name)
+        {
+            return (mStaticSlots.find(name) != mStaticSlots.end());
+        }
+
+        bool complete()
+        {
+            mStaticData = new JSValue[mStaticCount];
+            return (mStaticData != 0);
+        }
+
+        JSValue& operator[] (uint32 index)
+        {
+            return mStaticData[index];
+        }
+        
+        virtual void printProperties(Formatter& f)
+        {
+            f << "Properties:\n";
+            JSObject::printProperties(f);
+            f << "Statics:\n";
+            printStatics(f);
+        }
+
+        void printStatics(Formatter& f)
+        {
+            JSClass* superClass = getSuperClass();
+            if (superClass) superClass->printStatics(f);
+            for (JSSlots::iterator i = mStaticSlots.begin(), end = mStaticSlots.end(); i != end; ++i) {
+                f << i->first << " : " << mStaticData[i->second.mIndex]  << "\n";
+            }
+        }
+
+        void defineMethod(const String& name, JSFunction *f)
+        {
+            uint32 slot;
+            if (hasMethod(name, slot))
+                mMethods[slot] = MethodEntry(name, f);
+            else
+                mMethods.push_back(MethodEntry(name, f));
+        }
+
+        bool hasMethod(const String& name, uint32& index)
+        {
+            JSMethods::iterator end = mMethods.end();
+            for (JSMethods::iterator i = mMethods.begin(); i != end; i++) {
+                if (i->first == name) {
+                    index = i - mMethods.begin();
+                    return true;
+                }
+            }
+            return false;
+        }
+
+        JSFunction* getMethod(uint32 index)
+        {
+            return mMethods[index].second;
+        }
+    };
+
+    /**
+     * Represents an instance of a JSClass.
+     */
+    class JSInstance : public JSObject {
+    protected:
+        JSValue mSlots[1];
+    public:
+        void* operator new(size_t n, JSClass* thisClass)
+        {
+            uint32 slotCount = thisClass->getSlotCount();
+            if (slotCount > 0) n += sizeof(JSValue) * (slotCount - 1);
+            return gc_base::operator new(n);
+        }
+        
+#if !defined(XP_MAC)
+        void operator delete(void* /*ptr*/, JSClass* /*thisClass*/) {}
+#endif
+        
+        JSInstance(JSClass* thisClass)
+        {
+            mType = thisClass;
+            // initialize extra slots with undefined.
+            uint32 slotCount = thisClass->getSlotCount();
+            if (slotCount > 0) {
+                std::uninitialized_fill(&mSlots[1], &mSlots[1] + (slotCount - 1),
+                                        JSTypes::kUndefinedValue);
+            }
+            // for grins, use the prototype link to access methods.
+            setPrototype(thisClass->getScope());
+        }
+        
+        JSFunction* getMethod(uint32 index)
+        {
+            return getClass()->getMethod(index);
+        }
+
+        JSClass* getClass()
+        {
+            return static_cast<JSClass*>(mType);
+        }
+        
+        JSValue& operator[] (uint32 index)
+        {
+            return mSlots[index];
+        }
+
+        virtual void printProperties(Formatter& f)
+        {
+            f << "Properties:\n";
+            JSObject::printProperties(f);
+            f << "Slots:\n";
+            printSlots(f, getClass());
+        }
+
+    private:
+        void printSlots(Formatter& f, JSClass* thisClass)
+        {
+            JSClass* superClass = thisClass->getSuperClass();
+            if (superClass) printSlots(f, superClass);
+            JSSlots& slots = thisClass->getSlots();
+            for (JSSlots::iterator i = slots.begin(), end = slots.end(); i != end; ++i) {
+                f << i->first << " : " <<  mSlots[i->second.mIndex]  << "\n";
+            }
+        }
+    };
+    
+} /* namespace JSClasses */
+} /* namespace JavaScript */
+
+#endif /* jsclasses_h */