src/3rdparty/webkit/JavaScriptCore/runtime/JSGlobalObject.cpp
changeset 0 1918ee327afb
child 3 41300fa6a67c
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/3rdparty/webkit/JavaScriptCore/runtime/JSGlobalObject.cpp	Mon Jan 11 14:00:40 2010 +0000
@@ -0,0 +1,475 @@
+/*
+ * Copyright (C) 2007, 2008, 2009 Apple Inc. All rights reserved.
+ * Copyright (C) 2008 Cameron Zwarich (cwzwarich@uwaterloo.ca)
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1.  Redistributions of source code must retain the above copyright
+ *     notice, this list of conditions and the following disclaimer. 
+ * 2.  Redistributions in binary form must reproduce the above copyright
+ *     notice, this list of conditions and the following disclaimer in the
+ *     documentation and/or other materials provided with the distribution. 
+ * 3.  Neither the name of Apple Computer, Inc. ("Apple") nor the names of
+ *     its contributors may be used to endorse or promote products derived
+ *     from this software without specific prior written permission. 
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "config.h"
+#include "JSGlobalObject.h"
+
+#include "JSCallbackConstructor.h"
+#include "JSCallbackFunction.h"
+#include "JSCallbackObject.h"
+
+#include "Arguments.h"
+#include "ArrayConstructor.h"
+#include "ArrayPrototype.h"
+#include "BooleanConstructor.h"
+#include "BooleanPrototype.h"
+#include "CodeBlock.h"
+#include "DateConstructor.h"
+#include "DatePrototype.h"
+#include "ErrorConstructor.h"
+#include "ErrorPrototype.h"
+#include "FunctionConstructor.h"
+#include "FunctionPrototype.h"
+#include "GlobalEvalFunction.h"
+#include "JSFunction.h"
+#include "JSGlobalObjectFunctions.h"
+#include "JSLock.h"
+#include "JSONObject.h"
+#include "Interpreter.h"
+#include "MathObject.h"
+#include "NativeErrorConstructor.h"
+#include "NativeErrorPrototype.h"
+#include "NumberConstructor.h"
+#include "NumberPrototype.h"
+#include "ObjectConstructor.h"
+#include "ObjectPrototype.h"
+// QTPROD-235: pick up proper Profiler.h file
+#include "profiler/Profiler.h"
+#include "PrototypeFunction.h"
+#include "RegExpConstructor.h"
+#include "RegExpMatchesArray.h"
+#include "RegExpObject.h"
+#include "RegExpPrototype.h"
+#include "ScopeChainMark.h"
+#include "StringConstructor.h"
+#include "StringPrototype.h"
+#include "Debugger.h"
+
+namespace JSC {
+
+ASSERT_CLASS_FITS_IN_CELL(JSGlobalObject);
+
+// Default number of ticks before a timeout check should be done.
+static const int initialTickCountThreshold = 255;
+
+// Preferred number of milliseconds between each timeout check
+static const int preferredScriptCheckTimeInterval = 1000;
+
+static inline void markIfNeeded(MarkStack& markStack, JSValue v)
+{
+    if (v)
+        markStack.append(v);
+}
+
+static inline void markIfNeeded(MarkStack& markStack, const RefPtr<Structure>& s)
+{
+    if (s)
+        markIfNeeded(markStack, s->storedPrototype());
+}
+
+JSGlobalObject::~JSGlobalObject()
+{
+    ASSERT(JSLock::currentThreadIsHoldingLock());
+
+    if (d()->debugger)
+        d()->debugger->detach(this);
+
+    Profiler** profiler = Profiler::enabledProfilerReference();
+    if (UNLIKELY(*profiler != 0)) {
+        (*profiler)->stopProfiling(globalExec(), UString());
+    }
+
+    d()->next->d()->prev = d()->prev;
+    d()->prev->d()->next = d()->next;
+    JSGlobalObject*& headObject = head();
+    if (headObject == this)
+        headObject = d()->next;
+    if (headObject == this)
+        headObject = 0;
+
+    HashSet<GlobalCodeBlock*>::const_iterator end = codeBlocks().end();
+    for (HashSet<GlobalCodeBlock*>::const_iterator it = codeBlocks().begin(); it != end; ++it)
+        (*it)->clearGlobalObject();
+        
+    RegisterFile& registerFile = globalData()->interpreter->registerFile();
+    if (registerFile.globalObject() == this) {
+        registerFile.setGlobalObject(0);
+        registerFile.setNumGlobals(0);
+    }
+    d()->destructor(d());
+}
+
+void JSGlobalObject::init(JSObject* thisValue)
+{
+    ASSERT(JSLock::currentThreadIsHoldingLock());
+
+    d()->globalData = Heap::heap(this)->globalData();
+    d()->globalScopeChain = ScopeChain(this, d()->globalData.get(), this, thisValue);
+
+    JSGlobalObject::globalExec()->init(0, 0, d()->globalScopeChain.node(), CallFrame::noCaller(), 0, 0, 0);
+
+    if (JSGlobalObject*& headObject = head()) {
+        d()->prev = headObject;
+        d()->next = headObject->d()->next;
+        headObject->d()->next->d()->prev = this;
+        headObject->d()->next = this;
+    } else
+        headObject = d()->next = d()->prev = this;
+
+    d()->recursion = 0;
+    d()->debugger = 0;
+
+    d()->profileGroup = 0;
+
+    reset(prototype());
+}
+
+void JSGlobalObject::put(ExecState* exec, const Identifier& propertyName, JSValue value, PutPropertySlot& slot)
+{
+    ASSERT(!Heap::heap(value) || Heap::heap(value) == Heap::heap(this));
+
+    if (symbolTablePut(propertyName, value))
+        return;
+    JSVariableObject::put(exec, propertyName, value, slot);
+}
+
+void JSGlobalObject::putWithAttributes(ExecState* exec, const Identifier& propertyName, JSValue value, unsigned attributes)
+{
+    ASSERT(!Heap::heap(value) || Heap::heap(value) == Heap::heap(this));
+
+    if (symbolTablePutWithAttributes(propertyName, value, attributes))
+        return;
+
+    JSValue valueBefore = getDirect(propertyName);
+    PutPropertySlot slot;
+    JSVariableObject::put(exec, propertyName, value, slot);
+    if (!valueBefore) {
+        JSValue valueAfter = getDirect(propertyName);
+        if (valueAfter)
+            JSObject::putWithAttributes(exec, propertyName, valueAfter, attributes);
+    }
+}
+
+void JSGlobalObject::defineGetter(ExecState* exec, const Identifier& propertyName, JSObject* getterFunc, unsigned attributes)
+{
+    PropertySlot slot;
+    if (!symbolTableGet(propertyName, slot))
+        JSVariableObject::defineGetter(exec, propertyName, getterFunc, attributes);
+}
+
+void JSGlobalObject::defineSetter(ExecState* exec, const Identifier& propertyName, JSObject* setterFunc, unsigned attributes)
+{
+    PropertySlot slot;
+    if (!symbolTableGet(propertyName, slot))
+        JSVariableObject::defineSetter(exec, propertyName, setterFunc, attributes);
+}
+
+static inline JSObject* lastInPrototypeChain(JSObject* object)
+{
+    JSObject* o = object;
+    while (o->prototype().isObject())
+        o = asObject(o->prototype());
+    return o;
+}
+
+void JSGlobalObject::reset(JSValue prototype)
+{
+    ExecState* exec = JSGlobalObject::globalExec();
+
+    // Prototypes
+
+    d()->functionPrototype = new (exec) FunctionPrototype(exec, FunctionPrototype::createStructure(jsNull())); // The real prototype will be set once ObjectPrototype is created.
+    d()->prototypeFunctionStructure = PrototypeFunction::createStructure(d()->functionPrototype);
+    NativeFunctionWrapper* callFunction = 0;
+    NativeFunctionWrapper* applyFunction = 0;
+    d()->functionPrototype->addFunctionProperties(exec, d()->prototypeFunctionStructure.get(), &callFunction, &applyFunction);
+    d()->callFunction = callFunction;
+    d()->applyFunction = applyFunction;
+    d()->objectPrototype = new (exec) ObjectPrototype(exec, ObjectPrototype::createStructure(jsNull()), d()->prototypeFunctionStructure.get());
+    d()->functionPrototype->structure()->setPrototypeWithoutTransition(d()->objectPrototype);
+
+    d()->emptyObjectStructure = d()->objectPrototype->inheritorID();
+
+    d()->functionStructure = JSFunction::createStructure(d()->functionPrototype);
+    d()->callbackFunctionStructure = JSCallbackFunction::createStructure(d()->functionPrototype);
+    d()->argumentsStructure = Arguments::createStructure(d()->objectPrototype);
+    d()->callbackConstructorStructure = JSCallbackConstructor::createStructure(d()->objectPrototype);
+    d()->callbackObjectStructure = JSCallbackObject<JSObject>::createStructure(d()->objectPrototype);
+
+    d()->arrayPrototype = new (exec) ArrayPrototype(ArrayPrototype::createStructure(d()->objectPrototype));
+    d()->arrayStructure = JSArray::createStructure(d()->arrayPrototype);
+    d()->regExpMatchesArrayStructure = RegExpMatchesArray::createStructure(d()->arrayPrototype);
+
+    d()->stringPrototype = new (exec) StringPrototype(exec, StringPrototype::createStructure(d()->objectPrototype));
+    d()->stringObjectStructure = StringObject::createStructure(d()->stringPrototype);
+
+    d()->booleanPrototype = new (exec) BooleanPrototype(exec, BooleanPrototype::createStructure(d()->objectPrototype), d()->prototypeFunctionStructure.get());
+    d()->booleanObjectStructure = BooleanObject::createStructure(d()->booleanPrototype);
+
+    d()->numberPrototype = new (exec) NumberPrototype(exec, NumberPrototype::createStructure(d()->objectPrototype), d()->prototypeFunctionStructure.get());
+    d()->numberObjectStructure = NumberObject::createStructure(d()->numberPrototype);
+
+    d()->datePrototype = new (exec) DatePrototype(exec, DatePrototype::createStructure(d()->objectPrototype));
+    d()->dateStructure = DateInstance::createStructure(d()->datePrototype);
+
+    d()->regExpPrototype = new (exec) RegExpPrototype(exec, RegExpPrototype::createStructure(d()->objectPrototype), d()->prototypeFunctionStructure.get());
+    d()->regExpStructure = RegExpObject::createStructure(d()->regExpPrototype);
+
+    d()->methodCallDummy = constructEmptyObject(exec);
+
+    ErrorPrototype* errorPrototype = new (exec) ErrorPrototype(exec, ErrorPrototype::createStructure(d()->objectPrototype), d()->prototypeFunctionStructure.get());
+    d()->errorStructure = ErrorInstance::createStructure(errorPrototype);
+
+    RefPtr<Structure> nativeErrorPrototypeStructure = NativeErrorPrototype::createStructure(errorPrototype);
+
+    NativeErrorPrototype* evalErrorPrototype = new (exec) NativeErrorPrototype(exec, nativeErrorPrototypeStructure, "EvalError", "EvalError");
+    NativeErrorPrototype* rangeErrorPrototype = new (exec) NativeErrorPrototype(exec, nativeErrorPrototypeStructure, "RangeError", "RangeError");
+    NativeErrorPrototype* referenceErrorPrototype = new (exec) NativeErrorPrototype(exec, nativeErrorPrototypeStructure, "ReferenceError", "ReferenceError");
+    NativeErrorPrototype* syntaxErrorPrototype = new (exec) NativeErrorPrototype(exec, nativeErrorPrototypeStructure, "SyntaxError", "SyntaxError");
+    NativeErrorPrototype* typeErrorPrototype = new (exec) NativeErrorPrototype(exec, nativeErrorPrototypeStructure, "TypeError", "TypeError");
+    NativeErrorPrototype* URIErrorPrototype = new (exec) NativeErrorPrototype(exec, nativeErrorPrototypeStructure, "URIError", "URIError");
+
+    // Constructors
+
+    JSCell* objectConstructor = new (exec) ObjectConstructor(exec, ObjectConstructor::createStructure(d()->functionPrototype), d()->objectPrototype, d()->prototypeFunctionStructure.get());
+    JSCell* functionConstructor = new (exec) FunctionConstructor(exec, FunctionConstructor::createStructure(d()->functionPrototype), d()->functionPrototype);
+    JSCell* arrayConstructor = new (exec) ArrayConstructor(exec, ArrayConstructor::createStructure(d()->functionPrototype), d()->arrayPrototype, d()->prototypeFunctionStructure.get());
+    JSCell* stringConstructor = new (exec) StringConstructor(exec, StringConstructor::createStructure(d()->functionPrototype), d()->prototypeFunctionStructure.get(), d()->stringPrototype);
+    JSCell* booleanConstructor = new (exec) BooleanConstructor(exec, BooleanConstructor::createStructure(d()->functionPrototype), d()->booleanPrototype);
+    JSCell* numberConstructor = new (exec) NumberConstructor(exec, NumberConstructor::createStructure(d()->functionPrototype), d()->numberPrototype);
+    JSCell* dateConstructor = new (exec) DateConstructor(exec, DateConstructor::createStructure(d()->functionPrototype), d()->prototypeFunctionStructure.get(), d()->datePrototype);
+
+    d()->regExpConstructor = new (exec) RegExpConstructor(exec, RegExpConstructor::createStructure(d()->functionPrototype), d()->regExpPrototype);
+
+    d()->errorConstructor = new (exec) ErrorConstructor(exec, ErrorConstructor::createStructure(d()->functionPrototype), errorPrototype);
+
+    RefPtr<Structure> nativeErrorStructure = NativeErrorConstructor::createStructure(d()->functionPrototype);
+
+    d()->evalErrorConstructor = new (exec) NativeErrorConstructor(exec, nativeErrorStructure, evalErrorPrototype);
+    d()->rangeErrorConstructor = new (exec) NativeErrorConstructor(exec, nativeErrorStructure, rangeErrorPrototype);
+    d()->referenceErrorConstructor = new (exec) NativeErrorConstructor(exec, nativeErrorStructure, referenceErrorPrototype);
+    d()->syntaxErrorConstructor = new (exec) NativeErrorConstructor(exec, nativeErrorStructure, syntaxErrorPrototype);
+    d()->typeErrorConstructor = new (exec) NativeErrorConstructor(exec, nativeErrorStructure, typeErrorPrototype);
+    d()->URIErrorConstructor = new (exec) NativeErrorConstructor(exec, nativeErrorStructure, URIErrorPrototype);
+
+    d()->objectPrototype->putDirectFunctionWithoutTransition(exec->propertyNames().constructor, objectConstructor, DontEnum);
+    d()->functionPrototype->putDirectFunctionWithoutTransition(exec->propertyNames().constructor, functionConstructor, DontEnum);
+    d()->arrayPrototype->putDirectFunctionWithoutTransition(exec->propertyNames().constructor, arrayConstructor, DontEnum);
+    d()->booleanPrototype->putDirectFunctionWithoutTransition(exec->propertyNames().constructor, booleanConstructor, DontEnum);
+    d()->stringPrototype->putDirectFunctionWithoutTransition(exec->propertyNames().constructor, stringConstructor, DontEnum);
+    d()->numberPrototype->putDirectFunctionWithoutTransition(exec->propertyNames().constructor, numberConstructor, DontEnum);
+    d()->datePrototype->putDirectFunctionWithoutTransition(exec->propertyNames().constructor, dateConstructor, DontEnum);
+    d()->regExpPrototype->putDirectFunctionWithoutTransition(exec->propertyNames().constructor, d()->regExpConstructor, DontEnum);
+    errorPrototype->putDirectFunctionWithoutTransition(exec->propertyNames().constructor, d()->errorConstructor, DontEnum);
+
+    evalErrorPrototype->putDirect(exec->propertyNames().constructor, d()->evalErrorConstructor, DontEnum);
+    rangeErrorPrototype->putDirect(exec->propertyNames().constructor, d()->rangeErrorConstructor, DontEnum);
+    referenceErrorPrototype->putDirect(exec->propertyNames().constructor, d()->referenceErrorConstructor, DontEnum);
+    syntaxErrorPrototype->putDirect(exec->propertyNames().constructor, d()->syntaxErrorConstructor, DontEnum);
+    typeErrorPrototype->putDirect(exec->propertyNames().constructor, d()->typeErrorConstructor, DontEnum);
+    URIErrorPrototype->putDirect(exec->propertyNames().constructor, d()->URIErrorConstructor, DontEnum);
+
+    // Set global constructors
+
+    // FIXME: These properties could be handled by a static hash table.
+
+    putDirectFunctionWithoutTransition(Identifier(exec, "Object"), objectConstructor, DontEnum);
+    putDirectFunctionWithoutTransition(Identifier(exec, "Function"), functionConstructor, DontEnum);
+    putDirectFunctionWithoutTransition(Identifier(exec, "Array"), arrayConstructor, DontEnum);
+    putDirectFunctionWithoutTransition(Identifier(exec, "Boolean"), booleanConstructor, DontEnum);
+    putDirectFunctionWithoutTransition(Identifier(exec, "String"), stringConstructor, DontEnum);
+    putDirectFunctionWithoutTransition(Identifier(exec, "Number"), numberConstructor, DontEnum);
+    putDirectFunctionWithoutTransition(Identifier(exec, "Date"), dateConstructor, DontEnum);
+    putDirectFunctionWithoutTransition(Identifier(exec, "RegExp"), d()->regExpConstructor, DontEnum);
+    putDirectFunctionWithoutTransition(Identifier(exec, "Error"), d()->errorConstructor, DontEnum);
+    putDirectFunctionWithoutTransition(Identifier(exec, "EvalError"), d()->evalErrorConstructor);
+    putDirectFunctionWithoutTransition(Identifier(exec, "RangeError"), d()->rangeErrorConstructor);
+    putDirectFunctionWithoutTransition(Identifier(exec, "ReferenceError"), d()->referenceErrorConstructor);
+    putDirectFunctionWithoutTransition(Identifier(exec, "SyntaxError"), d()->syntaxErrorConstructor);
+    putDirectFunctionWithoutTransition(Identifier(exec, "TypeError"), d()->typeErrorConstructor);
+    putDirectFunctionWithoutTransition(Identifier(exec, "URIError"), d()->URIErrorConstructor);
+
+    // Set global values.
+    GlobalPropertyInfo staticGlobals[] = {
+        GlobalPropertyInfo(Identifier(exec, "Math"), new (exec) MathObject(exec, MathObject::createStructure(d()->objectPrototype)), DontEnum | DontDelete),
+        GlobalPropertyInfo(Identifier(exec, "NaN"), jsNaN(exec), DontEnum | DontDelete),
+        GlobalPropertyInfo(Identifier(exec, "Infinity"), jsNumber(exec, Inf), DontEnum | DontDelete),
+        GlobalPropertyInfo(Identifier(exec, "undefined"), jsUndefined(), DontEnum | DontDelete),
+        GlobalPropertyInfo(Identifier(exec, "JSON"), new (exec) JSONObject(JSONObject::createStructure(d()->objectPrototype)), DontEnum | DontDelete)
+    };
+
+    addStaticGlobals(staticGlobals, sizeof(staticGlobals) / sizeof(GlobalPropertyInfo));
+
+    // Set global functions.
+
+    d()->evalFunction = new (exec) GlobalEvalFunction(exec, GlobalEvalFunction::createStructure(d()->functionPrototype), 1, exec->propertyNames().eval, globalFuncEval, this);
+    putDirectFunctionWithoutTransition(exec, d()->evalFunction, DontEnum);
+    putDirectFunctionWithoutTransition(exec, new (exec) NativeFunctionWrapper(exec, d()->prototypeFunctionStructure.get(), 2, Identifier(exec, "parseInt"), globalFuncParseInt), DontEnum);
+    putDirectFunctionWithoutTransition(exec, new (exec) NativeFunctionWrapper(exec, d()->prototypeFunctionStructure.get(), 1, Identifier(exec, "parseFloat"), globalFuncParseFloat), DontEnum);
+    putDirectFunctionWithoutTransition(exec, new (exec) NativeFunctionWrapper(exec, d()->prototypeFunctionStructure.get(), 1, Identifier(exec, "isNaN"), globalFuncIsNaN), DontEnum);
+    putDirectFunctionWithoutTransition(exec, new (exec) NativeFunctionWrapper(exec, d()->prototypeFunctionStructure.get(), 1, Identifier(exec, "isFinite"), globalFuncIsFinite), DontEnum);
+    putDirectFunctionWithoutTransition(exec, new (exec) NativeFunctionWrapper(exec, d()->prototypeFunctionStructure.get(), 1, Identifier(exec, "escape"), globalFuncEscape), DontEnum);
+    putDirectFunctionWithoutTransition(exec, new (exec) NativeFunctionWrapper(exec, d()->prototypeFunctionStructure.get(), 1, Identifier(exec, "unescape"), globalFuncUnescape), DontEnum);
+    putDirectFunctionWithoutTransition(exec, new (exec) NativeFunctionWrapper(exec, d()->prototypeFunctionStructure.get(), 1, Identifier(exec, "decodeURI"), globalFuncDecodeURI), DontEnum);
+    putDirectFunctionWithoutTransition(exec, new (exec) NativeFunctionWrapper(exec, d()->prototypeFunctionStructure.get(), 1, Identifier(exec, "decodeURIComponent"), globalFuncDecodeURIComponent), DontEnum);
+    putDirectFunctionWithoutTransition(exec, new (exec) NativeFunctionWrapper(exec, d()->prototypeFunctionStructure.get(), 1, Identifier(exec, "encodeURI"), globalFuncEncodeURI), DontEnum);
+    putDirectFunctionWithoutTransition(exec, new (exec) NativeFunctionWrapper(exec, d()->prototypeFunctionStructure.get(), 1, Identifier(exec, "encodeURIComponent"), globalFuncEncodeURIComponent), DontEnum);
+#ifndef NDEBUG
+    putDirectFunctionWithoutTransition(exec, new (exec) NativeFunctionWrapper(exec, d()->prototypeFunctionStructure.get(), 1, Identifier(exec, "jscprint"), globalFuncJSCPrint), DontEnum);
+#endif
+
+    resetPrototype(prototype);
+}
+
+// Set prototype, and also insert the object prototype at the end of the chain.
+void JSGlobalObject::resetPrototype(JSValue prototype)
+{
+    setPrototype(prototype);
+
+    JSObject* oldLastInPrototypeChain = lastInPrototypeChain(this);
+    JSObject* objectPrototype = d()->objectPrototype;
+    if (oldLastInPrototypeChain != objectPrototype)
+        oldLastInPrototypeChain->setPrototype(objectPrototype);
+}
+
+void JSGlobalObject::markChildren(MarkStack& markStack)
+{
+    JSVariableObject::markChildren(markStack);
+    
+    HashSet<GlobalCodeBlock*>::const_iterator end = codeBlocks().end();
+    for (HashSet<GlobalCodeBlock*>::const_iterator it = codeBlocks().begin(); it != end; ++it)
+        (*it)->markAggregate(markStack);
+
+    RegisterFile& registerFile = globalData()->interpreter->registerFile();
+    if (registerFile.globalObject() == this)
+        registerFile.markGlobals(markStack, &globalData()->heap);
+
+    markIfNeeded(markStack, d()->regExpConstructor);
+    markIfNeeded(markStack, d()->errorConstructor);
+    markIfNeeded(markStack, d()->evalErrorConstructor);
+    markIfNeeded(markStack, d()->rangeErrorConstructor);
+    markIfNeeded(markStack, d()->referenceErrorConstructor);
+    markIfNeeded(markStack, d()->syntaxErrorConstructor);
+    markIfNeeded(markStack, d()->typeErrorConstructor);
+    markIfNeeded(markStack, d()->URIErrorConstructor);
+
+    markIfNeeded(markStack, d()->evalFunction);
+    markIfNeeded(markStack, d()->callFunction);
+    markIfNeeded(markStack, d()->applyFunction);
+
+    markIfNeeded(markStack, d()->objectPrototype);
+    markIfNeeded(markStack, d()->functionPrototype);
+    markIfNeeded(markStack, d()->arrayPrototype);
+    markIfNeeded(markStack, d()->booleanPrototype);
+    markIfNeeded(markStack, d()->stringPrototype);
+    markIfNeeded(markStack, d()->numberPrototype);
+    markIfNeeded(markStack, d()->datePrototype);
+    markIfNeeded(markStack, d()->regExpPrototype);
+
+    markIfNeeded(markStack, d()->methodCallDummy);
+
+    markIfNeeded(markStack, d()->errorStructure);
+    markIfNeeded(markStack, d()->argumentsStructure);
+    markIfNeeded(markStack, d()->arrayStructure);
+    markIfNeeded(markStack, d()->booleanObjectStructure);
+    markIfNeeded(markStack, d()->callbackConstructorStructure);
+    markIfNeeded(markStack, d()->callbackFunctionStructure);
+    markIfNeeded(markStack, d()->callbackObjectStructure);
+    markIfNeeded(markStack, d()->dateStructure);
+    markIfNeeded(markStack, d()->emptyObjectStructure);
+    markIfNeeded(markStack, d()->errorStructure);
+    markIfNeeded(markStack, d()->functionStructure);
+    markIfNeeded(markStack, d()->numberObjectStructure);
+    markIfNeeded(markStack, d()->prototypeFunctionStructure);
+    markIfNeeded(markStack, d()->regExpMatchesArrayStructure);
+    markIfNeeded(markStack, d()->regExpStructure);
+    markIfNeeded(markStack, d()->stringObjectStructure);
+
+    // No need to mark the other structures, because their prototypes are all
+    // guaranteed to be referenced elsewhere.
+
+    Register* registerArray = d()->registerArray.get();
+    if (!registerArray)
+        return;
+
+    size_t size = d()->registerArraySize;
+    markStack.appendValues(reinterpret_cast<JSValue*>(registerArray), size);
+}
+
+ExecState* JSGlobalObject::globalExec()
+{
+    return CallFrame::create(d()->globalCallFrame + RegisterFile::CallFrameHeaderSize);
+}
+
+bool JSGlobalObject::isDynamicScope() const
+{
+    return true;
+}
+
+void JSGlobalObject::copyGlobalsFrom(RegisterFile& registerFile)
+{
+    ASSERT(!d()->registerArray);
+    ASSERT(!d()->registerArraySize);
+
+    int numGlobals = registerFile.numGlobals();
+    if (!numGlobals) {
+        d()->registers = 0;
+        return;
+    }
+    
+    Register* registerArray = copyRegisterArray(registerFile.lastGlobal(), numGlobals);
+    setRegisters(registerArray + numGlobals, registerArray, numGlobals);
+}
+
+void JSGlobalObject::copyGlobalsTo(RegisterFile& registerFile)
+{
+    JSGlobalObject* lastGlobalObject = registerFile.globalObject();
+    if (lastGlobalObject && lastGlobalObject != this)
+        lastGlobalObject->copyGlobalsFrom(registerFile);
+
+    registerFile.setGlobalObject(this);
+    registerFile.setNumGlobals(symbolTable().size());
+
+    if (d()->registerArray) {
+        memcpy(registerFile.start() - d()->registerArraySize, d()->registerArray.get(), d()->registerArraySize * sizeof(Register));
+        setRegisters(registerFile.start(), 0, 0);
+    }
+}
+
+void* JSGlobalObject::operator new(size_t size, JSGlobalData* globalData)
+{
+    return globalData->heap.allocate(size);
+}
+
+void JSGlobalObject::destroyJSGlobalObjectData(void* jsGlobalObjectData)
+{
+    delete static_cast<JSGlobalObjectData*>(jsGlobalObjectData);
+}
+
+} // namespace JSC