JavaScriptCore-1097.13.tar.gz

[apple/javascriptcore.git] / runtime / JSGlobalObject.cpp

diff --git a/runtime/JSGlobalObject.cpp b/runtime/JSGlobalObject.cpp
index 1e2522681876ded163f4dcba388242597a9d0591..dc68bdec7b2b769c6856fb69be13a05a62aea220 100644 (file)
--- a/runtime/JSGlobalObject.cpp
+++ b/runtime/JSGlobalObject.cpp
@@ -42,16 +42,19 @@
 #include "CodeBlock.h"
 #include "DateConstructor.h"
 #include "DatePrototype.h"
 #include "CodeBlock.h"
 #include "DateConstructor.h"
 #include "DatePrototype.h"

+#include "Error.h"

 #include "ErrorConstructor.h"
 #include "ErrorPrototype.h"
 #include "FunctionConstructor.h"
 #include "FunctionPrototype.h"
 #include "ErrorConstructor.h"
 #include "ErrorPrototype.h"
 #include "FunctionConstructor.h"
 #include "FunctionPrototype.h"

-#include "GlobalEvalFunction.h"
+#include "GetterSetter.h"
+#include "JSBoundFunction.h"

 #include "JSFunction.h"
 #include "JSGlobalObjectFunctions.h"
 #include "JSLock.h"
 #include "JSONObject.h"
 #include "Interpreter.h"
 #include "JSFunction.h"
 #include "JSGlobalObjectFunctions.h"
 #include "JSLock.h"
 #include "JSONObject.h"
 #include "Interpreter.h"

+#include "Lookup.h"

 #include "MathObject.h"
 #include "NativeErrorConstructor.h"
 #include "NativeErrorPrototype.h"
 #include "MathObject.h"
 #include "NativeErrorConstructor.h"
 #include "NativeErrorPrototype.h"


@@ -60,7 +63,6 @@
 #include "ObjectConstructor.h"
 #include "ObjectPrototype.h"
 #include "Profiler.h"
 #include "ObjectConstructor.h"
 #include "ObjectPrototype.h"
 #include "Profiler.h"

-#include "PrototypeFunction.h"

 #include "RegExpConstructor.h"
 #include "RegExpMatchesArray.h"
 #include "RegExpObject.h"
 #include "RegExpConstructor.h"
 #include "RegExpMatchesArray.h"
 #include "RegExpObject.h"


@@ -70,8 +72,31 @@
 #include "StringPrototype.h"
 #include "Debugger.h"
 
 #include "StringPrototype.h"
 #include "Debugger.h"
 

+#include "JSGlobalObject.lut.h"
+

 namespace JSC {
 
 namespace JSC {
 

+const ClassInfo JSGlobalObject::s_info = { "GlobalObject", &JSVariableObject::s_info, 0, ExecState::globalObjectTable, CREATE_METHOD_TABLE(JSGlobalObject) };
+
+const GlobalObjectMethodTable JSGlobalObject::s_globalObjectMethodTable = { &allowsAccessFrom, &supportsProfiling, &supportsRichSourceInfo, &shouldInterruptScript
+    , &shouldInterruptScriptBeforeTimeout
+};
+
+/* Source for JSGlobalObject.lut.h
+@begin globalObjectTable
+  parseInt              globalFuncParseInt              DontEnum|Function 2
+  parseFloat            globalFuncParseFloat            DontEnum|Function 1
+  isNaN                 globalFuncIsNaN                 DontEnum|Function 1
+  isFinite              globalFuncIsFinite              DontEnum|Function 1
+  escape                globalFuncEscape                DontEnum|Function 1
+  unescape              globalFuncUnescape              DontEnum|Function 1
+  decodeURI             globalFuncDecodeURI             DontEnum|Function 1
+  decodeURIComponent    globalFuncDecodeURIComponent    DontEnum|Function 1
+  encodeURI             globalFuncEncodeURI             DontEnum|Function 1
+  encodeURIComponent    globalFuncEncodeURIComponent    DontEnum|Function 1
+@end
+*/
+

 ASSERT_CLASS_FITS_IN_CELL(JSGlobalObject);
 
 // Default number of ticks before a timeout check should be done.
 ASSERT_CLASS_FITS_IN_CELL(JSGlobalObject);
 
 // Default number of ticks before a timeout check should be done.


@@ -80,114 +105,81 @@ static const int initialTickCountThreshold = 255;
 // Preferred number of milliseconds between each timeout check
 static const int preferredScriptCheckTimeInterval = 1000;
 
 // Preferred number of milliseconds between each timeout check
 static const int preferredScriptCheckTimeInterval = 1000;
 

-static inline void markIfNeeded(MarkStack& markStack, JSValue v)
+template <typename T> static inline void visitIfNeeded(SlotVisitor& visitor, WriteBarrier<T>* v)

 {
 {

-    if (v)
-        markStack.append(v);
-}
-
-static inline void markIfNeeded(MarkStack& markStack, const RefPtr<Structure>& s)
-{
-    if (s)
-        markIfNeeded(markStack, s->storedPrototype());
+    if (*v)
+        visitor.append(v);

 }
 
 JSGlobalObject::~JSGlobalObject()
 {
 }
 
 JSGlobalObject::~JSGlobalObject()
 {

-    ASSERT(JSLock::currentThreadIsHoldingLock());
-
-    if (d()->debugger)
-        d()->debugger->detach(this);
+    if (m_debugger)
+        m_debugger->detach(this);

 
     Profiler** profiler = Profiler::enabledProfilerReference();
     if (UNLIKELY(*profiler != 0)) {
 
     Profiler** profiler = Profiler::enabledProfilerReference();
     if (UNLIKELY(*profiler != 0)) {

-        (*profiler)->stopProfiling(globalExec(), UString());
+        (*profiler)->stopProfiling(this);

     }
     }

+}

 
 

-    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.clearGlobalObject(this))
-        registerFile.setNumGlobals(0);
-    d()->destructor(d());
+void JSGlobalObject::destroy(JSCell* cell)
+{
+    jsCast<JSGlobalObject*>(cell)->JSGlobalObject::~JSGlobalObject();

 }
 
 void JSGlobalObject::init(JSObject* thisValue)
 {
 }
 
 void JSGlobalObject::init(JSObject* thisValue)
 {

-    ASSERT(JSLock::currentThreadIsHoldingLock());
-
+    ASSERT(globalData().apiLock().currentThreadIsHoldingLock());
+    

     structure()->disableSpecificFunctionTracking();
 
     structure()->disableSpecificFunctionTracking();
 

-    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;
+    m_globalScopeChain.set(globalData(), this, ScopeChainNode::create(0, this, &globalData(), this, thisValue));

 
 

-    d()->recursion = 0;
-    d()->debugger = 0;
+    JSGlobalObject::globalExec()->init(0, 0, m_globalScopeChain.get(), CallFrame::noCaller(), 0, 0);

 
 

-    d()->profileGroup = 0;
+    m_debugger = 0;

 
     reset(prototype());
 }
 
 
     reset(prototype());
 }
 

-void JSGlobalObject::put(ExecState* exec, const Identifier& propertyName, JSValue value, PutPropertySlot& slot)
+void JSGlobalObject::put(JSCell* cell, ExecState* exec, const Identifier& propertyName, JSValue value, PutPropertySlot& slot)

 {
 {

-    ASSERT(!Heap::heap(value) || Heap::heap(value) == Heap::heap(this));
+    JSGlobalObject* thisObject = jsCast<JSGlobalObject*>(cell);
+    ASSERT(!Heap::heap(value) || Heap::heap(value) == Heap::heap(thisObject));

 
 

-    if (symbolTablePut(propertyName, value))
+    if (thisObject->symbolTablePut(exec, propertyName, value, slot.isStrictMode()))

         return;
         return;

-    JSVariableObject::put(exec, propertyName, value, slot);
+    JSVariableObject::put(thisObject, exec, propertyName, value, slot);

 }
 
 }
 

-void JSGlobalObject::putWithAttributes(ExecState* exec, const Identifier& propertyName, JSValue value, unsigned attributes)
+void JSGlobalObject::putDirectVirtual(JSObject* object, ExecState* exec, const Identifier& propertyName, JSValue value, unsigned attributes)

 {
 {

-    ASSERT(!Heap::heap(value) || Heap::heap(value) == Heap::heap(this));
+    JSGlobalObject* thisObject = jsCast<JSGlobalObject*>(object);
+    ASSERT(!Heap::heap(value) || Heap::heap(value) == Heap::heap(thisObject));

 
 

-    if (symbolTablePutWithAttributes(propertyName, value, attributes))
+    if (thisObject->symbolTablePutWithAttributes(exec->globalData(), propertyName, value, attributes))

         return;
 
         return;
 

-    JSValue valueBefore = getDirect(propertyName);
+    JSValue valueBefore = thisObject->getDirect(exec->globalData(), propertyName);

     PutPropertySlot slot;
     PutPropertySlot slot;

-    JSVariableObject::put(exec, propertyName, value, slot);
+    JSVariableObject::put(thisObject, exec, propertyName, value, slot);

     if (!valueBefore) {
     if (!valueBefore) {

-        JSValue valueAfter = getDirect(propertyName);
+        JSValue valueAfter = thisObject->getDirect(exec->globalData(), propertyName);

         if (valueAfter)
         if (valueAfter)

-            JSObject::putWithAttributes(exec, propertyName, valueAfter, attributes);
+            JSObject::putDirectVirtual(thisObject, exec, propertyName, valueAfter, attributes);

     }
 }
 
     }
 }
 

-void JSGlobalObject::defineGetter(ExecState* exec, const Identifier& propertyName, JSObject* getterFunc, unsigned attributes)
+bool JSGlobalObject::defineOwnProperty(JSObject* object, ExecState* exec, const Identifier& propertyName, PropertyDescriptor& descriptor, bool shouldThrow)

 {
 {

+    JSGlobalObject* thisObject = jsCast<JSGlobalObject*>(object);

     PropertySlot slot;
     PropertySlot slot;

-    if (!symbolTableGet(propertyName, slot))
-        JSVariableObject::defineGetter(exec, propertyName, getterFunc, attributes);
+    // silently ignore attempts to add accessors aliasing vars.
+    if (descriptor.isAccessorDescriptor() && thisObject->symbolTableGet(propertyName, slot))
+        return false;
+    return Base::defineOwnProperty(thisObject, exec, propertyName, descriptor, shouldThrow);

 }
 
 }
 

-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)
 {
 
 static inline JSObject* lastInPrototypeChain(JSObject* object)
 {


@@ -201,259 +193,288 @@ void JSGlobalObject::reset(JSValue prototype)
 {
     ExecState* exec = JSGlobalObject::globalExec();
 
 {
     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);
+    m_functionPrototype.set(exec->globalData(), this, FunctionPrototype::create(exec, this, FunctionPrototype::createStructure(exec->globalData(), this, jsNull()))); // The real prototype will be set once ObjectPrototype is created.
+    m_functionStructure.set(exec->globalData(), this, JSFunction::createStructure(exec->globalData(), this, m_functionPrototype.get()));
+    m_boundFunctionStructure.set(exec->globalData(), this, JSBoundFunction::createStructure(exec->globalData(), this, m_functionPrototype.get()));
+    m_namedFunctionStructure.set(exec->globalData(), this, Structure::addPropertyTransition(exec->globalData(), m_functionStructure.get(), exec->globalData().propertyNames->name, DontDelete | ReadOnly | DontEnum, 0, m_functionNameOffset));
+    m_internalFunctionStructure.set(exec->globalData(), this, InternalFunction::createStructure(exec->globalData(), this, m_functionPrototype.get()));
+    JSFunction* callFunction = 0;
+    JSFunction* applyFunction = 0;
+    m_functionPrototype->addFunctionProperties(exec, this, &callFunction, &applyFunction);
+    m_callFunction.set(exec->globalData(), this, callFunction);
+    m_applyFunction.set(exec->globalData(), this, applyFunction);
+    m_objectPrototype.set(exec->globalData(), this, ObjectPrototype::create(exec, this, ObjectPrototype::createStructure(exec->globalData(), this, jsNull())));
+    GetterSetter* protoAccessor = GetterSetter::create(exec);
+    protoAccessor->setGetter(exec->globalData(), JSFunction::create(exec, this, 0, Identifier(), globalFuncProtoGetter));
+    protoAccessor->setSetter(exec->globalData(), JSFunction::create(exec, this, 0, Identifier(), globalFuncProtoSetter));
+    m_objectPrototype->putDirectAccessor(exec->globalData(), exec->propertyNames().underscoreProto, protoAccessor, Accessor | DontEnum);
+    m_functionPrototype->structure()->setPrototypeWithoutTransition(exec->globalData(), m_objectPrototype.get());
+
+    m_emptyObjectStructure.set(exec->globalData(), this, m_objectPrototype->inheritorID(exec->globalData()));
+    m_nullPrototypeObjectStructure.set(exec->globalData(), this, createEmptyObjectStructure(exec->globalData(), this, jsNull()));
+
+    m_callbackFunctionStructure.set(exec->globalData(), this, JSCallbackFunction::createStructure(exec->globalData(), this, m_functionPrototype.get()));
+    m_argumentsStructure.set(exec->globalData(), this, Arguments::createStructure(exec->globalData(), this, m_objectPrototype.get()));
+    m_callbackConstructorStructure.set(exec->globalData(), this, JSCallbackConstructor::createStructure(exec->globalData(), this, m_objectPrototype.get()));
+    m_callbackObjectStructure.set(exec->globalData(), this, JSCallbackObject<JSNonFinalObject>::createStructure(exec->globalData(), this, m_objectPrototype.get()));
+
+    m_arrayPrototype.set(exec->globalData(), this, ArrayPrototype::create(exec, this, ArrayPrototype::createStructure(exec->globalData(), this, m_objectPrototype.get())));
+    m_arrayStructure.set(exec->globalData(), this, JSArray::createStructure(exec->globalData(), this, m_arrayPrototype.get()));
+    m_regExpMatchesArrayStructure.set(exec->globalData(), this, RegExpMatchesArray::createStructure(exec->globalData(), this, m_arrayPrototype.get()));
+
+    m_stringPrototype.set(exec->globalData(), this, StringPrototype::create(exec, this, StringPrototype::createStructure(exec->globalData(), this, m_objectPrototype.get())));
+    m_stringObjectStructure.set(exec->globalData(), this, StringObject::createStructure(exec->globalData(), this, m_stringPrototype.get()));
+
+    m_booleanPrototype.set(exec->globalData(), this, BooleanPrototype::create(exec, this, BooleanPrototype::createStructure(exec->globalData(), this, m_objectPrototype.get())));
+    m_booleanObjectStructure.set(exec->globalData(), this, BooleanObject::createStructure(exec->globalData(), this, m_booleanPrototype.get()));
+
+    m_numberPrototype.set(exec->globalData(), this, NumberPrototype::create(exec, this, NumberPrototype::createStructure(exec->globalData(), this, m_objectPrototype.get())));
+    m_numberObjectStructure.set(exec->globalData(), this, NumberObject::createStructure(exec->globalData(), this, m_numberPrototype.get()));
+
+    m_datePrototype.set(exec->globalData(), this, DatePrototype::create(exec, this, DatePrototype::createStructure(exec->globalData(), this, m_objectPrototype.get())));
+    m_dateStructure.set(exec->globalData(), this, DateInstance::createStructure(exec->globalData(), this, m_datePrototype.get()));
+
+    RegExp* emptyRegex = RegExp::create(exec->globalData(), "", NoFlags);
+    
+    m_regExpPrototype.set(exec->globalData(), this, RegExpPrototype::create(exec, this, RegExpPrototype::createStructure(exec->globalData(), this, m_objectPrototype.get()), emptyRegex));
+    m_regExpStructure.set(exec->globalData(), this, RegExpObject::createStructure(exec->globalData(), this, m_regExpPrototype.get()));

 
 

-    d()->methodCallDummy = constructEmptyObject(exec);
+    m_methodCallDummy.set(exec->globalData(), this, constructEmptyObject(exec));

 
 

-    ErrorPrototype* errorPrototype = new (exec) ErrorPrototype(exec, ErrorPrototype::createStructure(d()->objectPrototype), d()->prototypeFunctionStructure.get());
-    d()->errorStructure = ErrorInstance::createStructure(errorPrototype);
+    ErrorPrototype* errorPrototype = ErrorPrototype::create(exec, this, ErrorPrototype::createStructure(exec->globalData(), this, m_objectPrototype.get()));
+    m_errorStructure.set(exec->globalData(), this, ErrorInstance::createStructure(exec->globalData(), this, errorPrototype));

 
     // Constructors
 
 
     // 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> nativeErrorPrototypeStructure = NativeErrorPrototype::createStructure(errorPrototype);
-    RefPtr<Structure> nativeErrorStructure = NativeErrorConstructor::createStructure(d()->functionPrototype);
-
-    d()->evalErrorConstructor = new (exec) NativeErrorConstructor(exec, nativeErrorStructure, nativeErrorPrototypeStructure, "EvalError");
-    d()->rangeErrorConstructor = new (exec) NativeErrorConstructor(exec, nativeErrorStructure, nativeErrorPrototypeStructure, "RangeError");
-    d()->referenceErrorConstructor = new (exec) NativeErrorConstructor(exec, nativeErrorStructure, nativeErrorPrototypeStructure, "ReferenceError");
-    d()->syntaxErrorConstructor = new (exec) NativeErrorConstructor(exec, nativeErrorStructure, nativeErrorPrototypeStructure, "SyntaxError");
-    d()->typeErrorConstructor = new (exec) NativeErrorConstructor(exec, nativeErrorStructure, nativeErrorPrototypeStructure, "TypeError");
-    d()->URIErrorConstructor = new (exec) NativeErrorConstructor(exec, nativeErrorStructure, nativeErrorPrototypeStructure, "URIError");
-
-    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);
-
-    // 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.
+    JSCell* objectConstructor = ObjectConstructor::create(exec, this, ObjectConstructor::createStructure(exec->globalData(), this, m_functionPrototype.get()), m_objectPrototype.get());
+    JSCell* functionConstructor = FunctionConstructor::create(exec, this, FunctionConstructor::createStructure(exec->globalData(), this, m_functionPrototype.get()), m_functionPrototype.get());
+    JSCell* arrayConstructor = ArrayConstructor::create(exec, this, ArrayConstructor::createStructure(exec->globalData(), this, m_functionPrototype.get()), m_arrayPrototype.get());
+    JSCell* stringConstructor = StringConstructor::create(exec, this, StringConstructor::createStructure(exec->globalData(), this, m_functionPrototype.get()), m_stringPrototype.get());
+    JSCell* booleanConstructor = BooleanConstructor::create(exec, this, BooleanConstructor::createStructure(exec->globalData(), this, m_functionPrototype.get()), m_booleanPrototype.get());
+    JSCell* numberConstructor = NumberConstructor::create(exec, this, NumberConstructor::createStructure(exec->globalData(), this, m_functionPrototype.get()), m_numberPrototype.get());
+    JSCell* dateConstructor = DateConstructor::create(exec, this, DateConstructor::createStructure(exec->globalData(), this, m_functionPrototype.get()), m_datePrototype.get());
+
+    m_regExpConstructor.set(exec->globalData(), this, RegExpConstructor::create(exec, this, RegExpConstructor::createStructure(exec->globalData(), this, m_functionPrototype.get()), m_regExpPrototype.get()));
+
+    m_errorConstructor.set(exec->globalData(), this, ErrorConstructor::create(exec, this, ErrorConstructor::createStructure(exec->globalData(), this, m_functionPrototype.get()), errorPrototype));
+
+    Structure* nativeErrorPrototypeStructure = NativeErrorPrototype::createStructure(exec->globalData(), this, errorPrototype);
+    Structure* nativeErrorStructure = NativeErrorConstructor::createStructure(exec->globalData(), this, m_functionPrototype.get());
+    m_evalErrorConstructor.set(exec->globalData(), this, NativeErrorConstructor::create(exec, this, nativeErrorStructure, nativeErrorPrototypeStructure, "EvalError"));
+    m_rangeErrorConstructor.set(exec->globalData(), this, NativeErrorConstructor::create(exec, this, nativeErrorStructure, nativeErrorPrototypeStructure, "RangeError"));
+    m_referenceErrorConstructor.set(exec->globalData(), this, NativeErrorConstructor::create(exec, this, nativeErrorStructure, nativeErrorPrototypeStructure, "ReferenceError"));
+    m_syntaxErrorConstructor.set(exec->globalData(), this, NativeErrorConstructor::create(exec, this, nativeErrorStructure, nativeErrorPrototypeStructure, "SyntaxError"));
+    m_typeErrorConstructor.set(exec->globalData(), this, NativeErrorConstructor::create(exec, this, nativeErrorStructure, nativeErrorPrototypeStructure, "TypeError"));
+    m_URIErrorConstructor.set(exec->globalData(), this, NativeErrorConstructor::create(exec, this, nativeErrorStructure, nativeErrorPrototypeStructure, "URIError"));
+
+    m_objectPrototype->putDirectWithoutTransition(exec->globalData(), exec->propertyNames().constructor, objectConstructor, DontEnum);
+    m_functionPrototype->putDirectWithoutTransition(exec->globalData(), exec->propertyNames().constructor, functionConstructor, DontEnum);
+    m_arrayPrototype->putDirectWithoutTransition(exec->globalData(), exec->propertyNames().constructor, arrayConstructor, DontEnum);
+    m_booleanPrototype->putDirectWithoutTransition(exec->globalData(), exec->propertyNames().constructor, booleanConstructor, DontEnum);
+    m_stringPrototype->putDirectWithoutTransition(exec->globalData(), exec->propertyNames().constructor, stringConstructor, DontEnum);
+    m_numberPrototype->putDirectWithoutTransition(exec->globalData(), exec->propertyNames().constructor, numberConstructor, DontEnum);
+    m_datePrototype->putDirectWithoutTransition(exec->globalData(), exec->propertyNames().constructor, dateConstructor, DontEnum);
+    m_regExpPrototype->putDirectWithoutTransition(exec->globalData(), exec->propertyNames().constructor, m_regExpConstructor.get(), DontEnum);
+    errorPrototype->putDirectWithoutTransition(exec->globalData(), exec->propertyNames().constructor, m_errorConstructor.get(), DontEnum);
+
+    putDirectWithoutTransition(exec->globalData(), Identifier(exec, "Object"), objectConstructor, DontEnum);
+    putDirectWithoutTransition(exec->globalData(), Identifier(exec, "Function"), functionConstructor, DontEnum);
+    putDirectWithoutTransition(exec->globalData(), Identifier(exec, "Array"), arrayConstructor, DontEnum);
+    putDirectWithoutTransition(exec->globalData(), Identifier(exec, "Boolean"), booleanConstructor, DontEnum);
+    putDirectWithoutTransition(exec->globalData(), Identifier(exec, "String"), stringConstructor, DontEnum);
+    putDirectWithoutTransition(exec->globalData(), Identifier(exec, "Number"), numberConstructor, DontEnum);
+    putDirectWithoutTransition(exec->globalData(), Identifier(exec, "Date"), dateConstructor, DontEnum);
+    putDirectWithoutTransition(exec->globalData(), Identifier(exec, "RegExp"), m_regExpConstructor.get(), DontEnum);
+    putDirectWithoutTransition(exec->globalData(), Identifier(exec, "Error"), m_errorConstructor.get(), DontEnum);
+    putDirectWithoutTransition(exec->globalData(), Identifier(exec, "EvalError"), m_evalErrorConstructor.get(), DontEnum);
+    putDirectWithoutTransition(exec->globalData(), Identifier(exec, "RangeError"), m_rangeErrorConstructor.get(), DontEnum);
+    putDirectWithoutTransition(exec->globalData(), Identifier(exec, "ReferenceError"), m_referenceErrorConstructor.get(), DontEnum);
+    putDirectWithoutTransition(exec->globalData(), Identifier(exec, "SyntaxError"), m_syntaxErrorConstructor.get(), DontEnum);
+    putDirectWithoutTransition(exec->globalData(), Identifier(exec, "TypeError"), m_typeErrorConstructor.get(), DontEnum);
+    putDirectWithoutTransition(exec->globalData(), Identifier(exec, "URIError"), m_URIErrorConstructor.get(), DontEnum);
+
+    m_evalFunction.set(exec->globalData(), this, JSFunction::create(exec, this, 1, exec->propertyNames().eval, globalFuncEval));
+    putDirectWithoutTransition(exec->globalData(), exec->propertyNames().eval, m_evalFunction.get(), DontEnum);
+
+    putDirectWithoutTransition(exec->globalData(), Identifier(exec, "JSON"), JSONObject::create(exec, this, JSONObject::createStructure(exec->globalData(), this, m_objectPrototype.get())), DontEnum);
+

     GlobalPropertyInfo staticGlobals[] = {
     GlobalPropertyInfo staticGlobals[] = {

-        GlobalPropertyInfo(Identifier(exec, "Math"), new (exec) MathObject(exec, MathObject::createStructure(d()->objectPrototype)), DontEnum | DontDelete),
-        GlobalPropertyInfo(Identifier(exec, "NaN"), jsNaN(exec), DontEnum | DontDelete | ReadOnly),
-        GlobalPropertyInfo(Identifier(exec, "Infinity"), jsNumber(exec, Inf), DontEnum | DontDelete | ReadOnly),
-        GlobalPropertyInfo(Identifier(exec, "undefined"), jsUndefined(), DontEnum | DontDelete | ReadOnly),
-        GlobalPropertyInfo(Identifier(exec, "JSON"), new (exec) JSONObject(JSONObject::createStructure(d()->objectPrototype)), DontEnum | DontDelete)
+        GlobalPropertyInfo(Identifier(exec, "Math"), MathObject::create(exec, this, MathObject::createStructure(exec->globalData(), this, m_objectPrototype.get())), DontEnum | DontDelete),
+        GlobalPropertyInfo(Identifier(exec, "NaN"), jsNaN(), DontEnum | DontDelete | ReadOnly),
+        GlobalPropertyInfo(Identifier(exec, "Infinity"), jsNumber(std::numeric_limits<double>::infinity()), DontEnum | DontDelete | ReadOnly),
+        GlobalPropertyInfo(Identifier(exec, "undefined"), jsUndefined(), DontEnum | DontDelete | ReadOnly)

     };
     };

+    addStaticGlobals(staticGlobals, WTF_ARRAY_LENGTH(staticGlobals));

 
 

-    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(exec->globalData(), prototype);
+}

 
 

-    resetPrototype(prototype);
+void JSGlobalObject::createThrowTypeError(ExecState* exec)
+{
+    JSFunction* thrower = JSFunction::create(exec, this, 0, Identifier(), globalFuncThrowTypeError);
+    GetterSetter* getterSetter = GetterSetter::create(exec);
+    getterSetter->setGetter(exec->globalData(), thrower);
+    getterSetter->setSetter(exec->globalData(), thrower);
+    m_throwTypeErrorGetterSetter.set(exec->globalData(), this, getterSetter);

 }
 
 // Set prototype, and also insert the object prototype at the end of the chain.
 }
 
 // Set prototype, and also insert the object prototype at the end of the chain.

-void JSGlobalObject::resetPrototype(JSValue prototype)
+void JSGlobalObject::resetPrototype(JSGlobalData& globalData, JSValue prototype)

 {
 {

-    setPrototype(prototype);
+    setPrototype(globalData, prototype);

 
     JSObject* oldLastInPrototypeChain = lastInPrototypeChain(this);
 
     JSObject* oldLastInPrototypeChain = lastInPrototypeChain(this);

-    JSObject* objectPrototype = d()->objectPrototype;
+    JSObject* objectPrototype = m_objectPrototype.get();

     if (oldLastInPrototypeChain != objectPrototype)
     if (oldLastInPrototypeChain != objectPrototype)

-        oldLastInPrototypeChain->setPrototype(objectPrototype);
+        oldLastInPrototypeChain->setPrototype(globalData, 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);
+void JSGlobalObject::visitChildren(JSCell* cell, SlotVisitor& visitor)
+{ 
+    JSGlobalObject* thisObject = jsCast<JSGlobalObject*>(cell);
+    ASSERT_GC_OBJECT_INHERITS(thisObject, &s_info);
+    COMPILE_ASSERT(StructureFlags & OverridesVisitChildren, OverridesVisitChildrenWithoutSettingFlag);
+    ASSERT(thisObject->structure()->typeInfo().overridesVisitChildren());
+    JSVariableObject::visitChildren(thisObject, visitor);
+
+    visitIfNeeded(visitor, &thisObject->m_globalScopeChain);
+    visitIfNeeded(visitor, &thisObject->m_methodCallDummy);
+
+    visitIfNeeded(visitor, &thisObject->m_regExpConstructor);
+    visitIfNeeded(visitor, &thisObject->m_errorConstructor);
+    visitIfNeeded(visitor, &thisObject->m_evalErrorConstructor);
+    visitIfNeeded(visitor, &thisObject->m_rangeErrorConstructor);
+    visitIfNeeded(visitor, &thisObject->m_referenceErrorConstructor);
+    visitIfNeeded(visitor, &thisObject->m_syntaxErrorConstructor);
+    visitIfNeeded(visitor, &thisObject->m_typeErrorConstructor);
+    visitIfNeeded(visitor, &thisObject->m_URIErrorConstructor);
+
+    visitIfNeeded(visitor, &thisObject->m_evalFunction);
+    visitIfNeeded(visitor, &thisObject->m_callFunction);
+    visitIfNeeded(visitor, &thisObject->m_applyFunction);
+    visitIfNeeded(visitor, &thisObject->m_throwTypeErrorGetterSetter);
+
+    visitIfNeeded(visitor, &thisObject->m_objectPrototype);
+    visitIfNeeded(visitor, &thisObject->m_functionPrototype);
+    visitIfNeeded(visitor, &thisObject->m_arrayPrototype);
+    visitIfNeeded(visitor, &thisObject->m_booleanPrototype);
+    visitIfNeeded(visitor, &thisObject->m_stringPrototype);
+    visitIfNeeded(visitor, &thisObject->m_numberPrototype);
+    visitIfNeeded(visitor, &thisObject->m_datePrototype);
+    visitIfNeeded(visitor, &thisObject->m_regExpPrototype);
+
+    visitIfNeeded(visitor, &thisObject->m_argumentsStructure);
+    visitIfNeeded(visitor, &thisObject->m_arrayStructure);
+    visitIfNeeded(visitor, &thisObject->m_booleanObjectStructure);
+    visitIfNeeded(visitor, &thisObject->m_callbackConstructorStructure);
+    visitIfNeeded(visitor, &thisObject->m_callbackFunctionStructure);
+    visitIfNeeded(visitor, &thisObject->m_callbackObjectStructure);
+    visitIfNeeded(visitor, &thisObject->m_dateStructure);
+    visitIfNeeded(visitor, &thisObject->m_emptyObjectStructure);
+    visitIfNeeded(visitor, &thisObject->m_nullPrototypeObjectStructure);
+    visitIfNeeded(visitor, &thisObject->m_errorStructure);
+    visitIfNeeded(visitor, &thisObject->m_functionStructure);
+    visitIfNeeded(visitor, &thisObject->m_boundFunctionStructure);
+    visitIfNeeded(visitor, &thisObject->m_namedFunctionStructure);
+    visitIfNeeded(visitor, &thisObject->m_numberObjectStructure);
+    visitIfNeeded(visitor, &thisObject->m_regExpMatchesArrayStructure);
+    visitIfNeeded(visitor, &thisObject->m_regExpStructure);
+    visitIfNeeded(visitor, &thisObject->m_stringObjectStructure);
+    visitIfNeeded(visitor, &thisObject->m_internalFunctionStructure);
+
+    if (thisObject->m_registerArray) {
+        // Outside the execution of global code, when our variables are torn off,
+        // we can mark the torn-off array.
+        visitor.appendValues(thisObject->m_registerArray.get(), thisObject->m_registerArraySize);
+    } else if (thisObject->m_registers) {
+        // During execution of global code, when our variables are in the register file,
+        // the symbol table tells us how many variables there are, and registers
+        // points to where they end, and the registers used for execution begin.
+        visitor.appendValues(thisObject->m_registers - thisObject->symbolTable().size(), thisObject->symbolTable().size());
+    }

 }
 
 ExecState* JSGlobalObject::globalExec()
 {
 }
 
 ExecState* JSGlobalObject::globalExec()
 {

-    return CallFrame::create(d()->globalCallFrame + RegisterFile::CallFrameHeaderSize);
+    return CallFrame::create(m_globalCallFrame + RegisterFile::CallFrameHeaderSize);

 }
 
 }
 

-bool JSGlobalObject::isDynamicScope(bool&) const
+void JSGlobalObject::resizeRegisters(size_t newSize)

 {
 {

-    return true;
+    // Previous duplicate symbols may have created spare capacity in m_registerArray.
+    if (newSize <= m_registerArraySize)
+        return;
+
+    size_t oldSize = m_registerArraySize;
+    OwnArrayPtr<WriteBarrier<Unknown> > registerArray = adoptArrayPtr(new WriteBarrier<Unknown>[newSize]);
+    for (size_t i = 0; i < oldSize; ++i)
+        registerArray[i].set(globalData(), this, m_registerArray[i].get());
+    for (size_t i = oldSize; i < newSize; ++i)
+        registerArray[i].setUndefined();
+
+    WriteBarrier<Unknown>* registers = registerArray.get();
+    setRegisters(registers, registerArray.release(), newSize);

 }
 
 }
 

-void JSGlobalObject::copyGlobalsFrom(RegisterFile& registerFile)
+void JSGlobalObject::addStaticGlobals(GlobalPropertyInfo* globals, int count)

 {
 {

-    ASSERT(!d()->registerArray);
-    ASSERT(!d()->registerArraySize);
+    resizeRegisters(symbolTable().size() + count);

 
 

-    int numGlobals = registerFile.numGlobals();
-    if (!numGlobals) {
-        d()->registers = 0;
-        return;
+    for (int i = 0; i < count; ++i) {
+        GlobalPropertyInfo& global = globals[i];
+        ASSERT(global.attributes & DontDelete);
+        
+        int index = symbolTable().size();
+        SymbolTableEntry newEntry(index, global.attributes);
+        symbolTable().add(global.identifier.impl(), newEntry);
+        registerAt(index).set(globalData(), this, global.value);

     }
     }

-    
-    Register* registerArray = copyRegisterArray(registerFile.lastGlobal(), numGlobals);
-    setRegisters(registerArray + numGlobals, registerArray, numGlobals);

 }
 
 }
 

-void JSGlobalObject::copyGlobalsTo(RegisterFile& registerFile)
+bool JSGlobalObject::getOwnPropertySlot(JSCell* cell, ExecState* exec, const Identifier& propertyName, PropertySlot& slot)

 {
 {

-    JSGlobalObject* lastGlobalObject = registerFile.globalObject();
-    if (lastGlobalObject && lastGlobalObject != this)
-        lastGlobalObject->copyGlobalsFrom(registerFile);
+    JSGlobalObject* thisObject = jsCast<JSGlobalObject*>(cell);
+    if (getStaticFunctionSlot<JSVariableObject>(exec, ExecState::globalObjectTable(exec), thisObject, propertyName, slot))
+        return true;
+    return thisObject->symbolTableGet(propertyName, slot);
+}

 
 

-    registerFile.setGlobalObject(this);
-    registerFile.setNumGlobals(symbolTable().size());
+bool JSGlobalObject::getOwnPropertyDescriptor(JSObject* object, ExecState* exec, const Identifier& propertyName, PropertyDescriptor& descriptor)
+{
+    JSGlobalObject* thisObject = jsCast<JSGlobalObject*>(object);
+    if (getStaticFunctionDescriptor<JSVariableObject>(exec, ExecState::globalObjectTable(exec), thisObject, propertyName, descriptor))
+        return true;
+    return thisObject->symbolTableGet(propertyName, descriptor);
+}

 
 

-    if (d()->registerArray) {
-        memcpy(registerFile.start() - d()->registerArraySize, d()->registerArray.get(), d()->registerArraySize * sizeof(Register));
-        setRegisters(registerFile.start(), 0, 0);
-    }
+void JSGlobalObject::clearRareData(JSCell* cell)
+{
+    jsCast<JSGlobalObject*>(cell)->m_rareData.clear();

 }
 
 }
 

-void* JSGlobalObject::operator new(size_t size, JSGlobalData* globalData)
+DynamicGlobalObjectScope::DynamicGlobalObjectScope(JSGlobalData& globalData, JSGlobalObject* dynamicGlobalObject)
+    : m_dynamicGlobalObjectSlot(globalData.dynamicGlobalObject)
+    , m_savedDynamicGlobalObject(m_dynamicGlobalObjectSlot)

 {
 {

-    return globalData->heap.allocate(size);
+    if (!m_dynamicGlobalObjectSlot) {
+#if ENABLE(ASSEMBLER)
+        if (ExecutableAllocator::underMemoryPressure())
+            globalData.heap.discardAllCompiledCode();
+#endif
+
+        m_dynamicGlobalObjectSlot = dynamicGlobalObject;
+
+        // Reset the date cache between JS invocations to force the VM
+        // to observe time zone changes.
+        globalData.resetDateCache();
+    }

 }
 
 }
 

-void JSGlobalObject::destroyJSGlobalObjectData(void* jsGlobalObjectData)
+void slowValidateCell(JSGlobalObject* globalObject)

 {
 {

-    delete static_cast<JSGlobalObjectData*>(jsGlobalObjectData);
+    if (!globalObject->isGlobalObject())
+        CRASH();
+    ASSERT_GC_OBJECT_INHERITS(globalObject, &JSGlobalObject::s_info);

 }
 
 } // namespace JSC
 }
 
 } // namespace JSC