#include "JSArray.h"
#include "JSGlobalData.h"
+#include "JSGlobalThis.h"
#include "JSVariableObject.h"
-#include "NativeFunctionWrapper.h"
+#include "JSWeakObjectMapRefInternal.h"
#include "NumberPrototype.h"
#include "StringPrototype.h"
+#include "StructureChain.h"
#include <wtf/HashSet.h>
#include <wtf/OwnPtr.h>
+#include <wtf/RandomNumber.h>
namespace JSC {
class Debugger;
class ErrorConstructor;
class FunctionPrototype;
+ class GetterSetter;
class GlobalCodeBlock;
- class GlobalEvalFunction;
+ class LLIntOffsetsExtractor;
class NativeErrorConstructor;
class ProgramCodeBlock;
- class PrototypeFunction;
class RegExpConstructor;
class RegExpPrototype;
class RegisterFile;
typedef Vector<ExecState*, 16> ExecStateStack;
+ struct GlobalObjectMethodTable {
+ typedef bool (*AllowsAccessFromFunctionPtr)(const JSGlobalObject*, ExecState*);
+ AllowsAccessFromFunctionPtr allowsAccessFrom;
+
+ typedef bool (*SupportsProfilingFunctionPtr)(const JSGlobalObject*);
+ SupportsProfilingFunctionPtr supportsProfiling;
+
+ typedef bool (*SupportsRichSourceInfoFunctionPtr)(const JSGlobalObject*);
+ SupportsRichSourceInfoFunctionPtr supportsRichSourceInfo;
+
+ typedef bool (*ShouldInterruptScriptFunctionPtr)(const JSGlobalObject*);
+ ShouldInterruptScriptFunctionPtr shouldInterruptScript;
+
+ typedef bool (*ShouldInterruptScriptBeforeTimeoutPtr)(const JSGlobalObject*);
+ ShouldInterruptScriptBeforeTimeoutPtr shouldInterruptScriptBeforeTimeout;
+ };
+
class JSGlobalObject : public JSVariableObject {
- protected:
- using JSVariableObject::JSVariableObjectData;
-
- struct JSGlobalObjectData : public JSVariableObjectData {
- // We use an explicit destructor function pointer instead of a
- // virtual destructor because we want to avoid adding a vtable
- // pointer to this struct. Adding a vtable pointer would force the
- // compiler to emit costly pointer fixup code when casting from
- // JSVariableObjectData* to JSGlobalObjectData*.
- typedef void (*Destructor)(void*);
-
- JSGlobalObjectData(Destructor destructor)
- : JSVariableObjectData(&symbolTable, 0)
- , destructor(destructor)
- , registerArraySize(0)
- , globalScopeChain(NoScopeChain())
- , regExpConstructor(0)
- , errorConstructor(0)
- , evalErrorConstructor(0)
- , rangeErrorConstructor(0)
- , referenceErrorConstructor(0)
- , syntaxErrorConstructor(0)
- , typeErrorConstructor(0)
- , URIErrorConstructor(0)
- , evalFunction(0)
- , callFunction(0)
- , applyFunction(0)
- , objectPrototype(0)
- , functionPrototype(0)
- , arrayPrototype(0)
- , booleanPrototype(0)
- , stringPrototype(0)
- , numberPrototype(0)
- , datePrototype(0)
- , regExpPrototype(0)
- , methodCallDummy(0)
+ private:
+ typedef HashSet<RefPtr<OpaqueJSWeakObjectMap> > WeakMapSet;
+
+ struct JSGlobalObjectRareData {
+ JSGlobalObjectRareData()
+ : profileGroup(0)
{
}
-
- Destructor destructor;
-
- size_t registerArraySize;
-
- JSGlobalObject* next;
- JSGlobalObject* prev;
-
- Debugger* debugger;
-
- ScopeChain globalScopeChain;
- Register globalCallFrame[RegisterFile::CallFrameHeaderSize];
-
- int recursion;
-
- RegExpConstructor* regExpConstructor;
- ErrorConstructor* errorConstructor;
- NativeErrorConstructor* evalErrorConstructor;
- NativeErrorConstructor* rangeErrorConstructor;
- NativeErrorConstructor* referenceErrorConstructor;
- NativeErrorConstructor* syntaxErrorConstructor;
- NativeErrorConstructor* typeErrorConstructor;
- NativeErrorConstructor* URIErrorConstructor;
-
- GlobalEvalFunction* evalFunction;
- NativeFunctionWrapper* callFunction;
- NativeFunctionWrapper* applyFunction;
-
- ObjectPrototype* objectPrototype;
- FunctionPrototype* functionPrototype;
- ArrayPrototype* arrayPrototype;
- BooleanPrototype* booleanPrototype;
- StringPrototype* stringPrototype;
- NumberPrototype* numberPrototype;
- DatePrototype* datePrototype;
- RegExpPrototype* regExpPrototype;
-
- JSObject* methodCallDummy;
-
- RefPtr<Structure> argumentsStructure;
- RefPtr<Structure> arrayStructure;
- RefPtr<Structure> booleanObjectStructure;
- RefPtr<Structure> callbackConstructorStructure;
- RefPtr<Structure> callbackFunctionStructure;
- RefPtr<Structure> callbackObjectStructure;
- RefPtr<Structure> dateStructure;
- RefPtr<Structure> emptyObjectStructure;
- RefPtr<Structure> errorStructure;
- RefPtr<Structure> functionStructure;
- RefPtr<Structure> numberObjectStructure;
- RefPtr<Structure> prototypeFunctionStructure;
- RefPtr<Structure> regExpMatchesArrayStructure;
- RefPtr<Structure> regExpStructure;
- RefPtr<Structure> stringObjectStructure;
-
- SymbolTable symbolTable;
- unsigned profileGroup;
-
- RefPtr<JSGlobalData> globalData;
- HashSet<GlobalCodeBlock*> codeBlocks;
+ WeakMapSet weakMaps;
+ unsigned profileGroup;
};
+ protected:
+
+ size_t m_registerArraySize;
+ Register m_globalCallFrame[RegisterFile::CallFrameHeaderSize];
+
+ WriteBarrier<ScopeChainNode> m_globalScopeChain;
+ WriteBarrier<JSObject> m_methodCallDummy;
+
+ WriteBarrier<RegExpConstructor> m_regExpConstructor;
+ WriteBarrier<ErrorConstructor> m_errorConstructor;
+ WriteBarrier<NativeErrorConstructor> m_evalErrorConstructor;
+ WriteBarrier<NativeErrorConstructor> m_rangeErrorConstructor;
+ WriteBarrier<NativeErrorConstructor> m_referenceErrorConstructor;
+ WriteBarrier<NativeErrorConstructor> m_syntaxErrorConstructor;
+ WriteBarrier<NativeErrorConstructor> m_typeErrorConstructor;
+ WriteBarrier<NativeErrorConstructor> m_URIErrorConstructor;
+
+ WriteBarrier<JSFunction> m_evalFunction;
+ WriteBarrier<JSFunction> m_callFunction;
+ WriteBarrier<JSFunction> m_applyFunction;
+ WriteBarrier<GetterSetter> m_throwTypeErrorGetterSetter;
+
+ WriteBarrier<ObjectPrototype> m_objectPrototype;
+ WriteBarrier<FunctionPrototype> m_functionPrototype;
+ WriteBarrier<ArrayPrototype> m_arrayPrototype;
+ WriteBarrier<BooleanPrototype> m_booleanPrototype;
+ WriteBarrier<StringPrototype> m_stringPrototype;
+ WriteBarrier<NumberPrototype> m_numberPrototype;
+ WriteBarrier<DatePrototype> m_datePrototype;
+ WriteBarrier<RegExpPrototype> m_regExpPrototype;
+
+ WriteBarrier<Structure> m_argumentsStructure;
+ WriteBarrier<Structure> m_arrayStructure;
+ WriteBarrier<Structure> m_booleanObjectStructure;
+ WriteBarrier<Structure> m_callbackConstructorStructure;
+ WriteBarrier<Structure> m_callbackFunctionStructure;
+ WriteBarrier<Structure> m_callbackObjectStructure;
+ WriteBarrier<Structure> m_dateStructure;
+ WriteBarrier<Structure> m_emptyObjectStructure;
+ WriteBarrier<Structure> m_nullPrototypeObjectStructure;
+ WriteBarrier<Structure> m_errorStructure;
+ WriteBarrier<Structure> m_functionStructure;
+ WriteBarrier<Structure> m_boundFunctionStructure;
+ WriteBarrier<Structure> m_namedFunctionStructure;
+ size_t m_functionNameOffset;
+ WriteBarrier<Structure> m_numberObjectStructure;
+ WriteBarrier<Structure> m_regExpMatchesArrayStructure;
+ WriteBarrier<Structure> m_regExpStructure;
+ WriteBarrier<Structure> m_stringObjectStructure;
+ WriteBarrier<Structure> m_internalFunctionStructure;
+
+ Debugger* m_debugger;
+
+ OwnPtr<JSGlobalObjectRareData> m_rareData;
+
+ WeakRandom m_weakRandom;
+
+ SymbolTable m_symbolTable;
+
+ bool m_evalEnabled;
+
+ static JS_EXPORTDATA const GlobalObjectMethodTable s_globalObjectMethodTable;
+ const GlobalObjectMethodTable* m_globalObjectMethodTable;
+
+ void createRareDataIfNeeded()
+ {
+ if (m_rareData)
+ return;
+ m_rareData = adoptPtr(new JSGlobalObjectRareData);
+ Heap::heap(this)->addFinalizer(this, clearRareData);
+ }
+
public:
- void* operator new(size_t, JSGlobalData*);
+ typedef JSVariableObject Base;
- explicit JSGlobalObject()
- : JSVariableObject(JSGlobalObject::createStructure(jsNull()), new JSGlobalObjectData(destroyJSGlobalObjectData))
+ static JSGlobalObject* create(JSGlobalData& globalData, Structure* structure)
{
- init(this);
+ JSGlobalObject* globalObject = new (NotNull, allocateCell<JSGlobalObject>(globalData.heap)) JSGlobalObject(globalData, structure);
+ globalObject->finishCreation(globalData);
+ return globalObject;
}
+ static JS_EXPORTDATA const ClassInfo s_info;
+
protected:
- JSGlobalObject(NonNullPassRefPtr<Structure> structure, JSGlobalObjectData* data, JSObject* thisValue)
- : JSVariableObject(structure, data)
+ explicit JSGlobalObject(JSGlobalData& globalData, Structure* structure, const GlobalObjectMethodTable* globalObjectMethodTable = 0)
+ : JSVariableObject(globalData, structure, &m_symbolTable, 0)
+ , m_registerArraySize(0)
+ , m_globalScopeChain()
+ , m_weakRandom(static_cast<unsigned>(randomNumber() * (std::numeric_limits<unsigned>::max() + 1.0)))
+ , m_evalEnabled(true)
+ , m_globalObjectMethodTable(globalObjectMethodTable ? globalObjectMethodTable : &s_globalObjectMethodTable)
{
+ }
+
+ void finishCreation(JSGlobalData& globalData)
+ {
+ Base::finishCreation(globalData);
+ structure()->setGlobalObject(globalData, this);
+ init(this);
+ }
+
+ void finishCreation(JSGlobalData& globalData, JSGlobalThis* thisValue)
+ {
+ Base::finishCreation(globalData);
+ structure()->setGlobalObject(globalData, this);
init(thisValue);
}
public:
- virtual ~JSGlobalObject();
+ JS_EXPORT_PRIVATE ~JSGlobalObject();
+ JS_EXPORT_PRIVATE static void destroy(JSCell*);
- virtual void markChildren(MarkStack&);
+ JS_EXPORT_PRIVATE static void visitChildren(JSCell*, SlotVisitor&);
- virtual bool getOwnPropertySlot(ExecState*, const Identifier&, PropertySlot&);
- virtual bool getOwnPropertyDescriptor(ExecState*, const Identifier&, PropertyDescriptor&);
- virtual bool hasOwnPropertyForWrite(ExecState*, const Identifier&);
- virtual void put(ExecState*, const Identifier&, JSValue, PutPropertySlot&);
- virtual void putWithAttributes(ExecState*, const Identifier& propertyName, JSValue value, unsigned attributes);
+ JS_EXPORT_PRIVATE static bool getOwnPropertySlot(JSCell*, ExecState*, const Identifier&, PropertySlot&);
+ JS_EXPORT_PRIVATE static bool getOwnPropertyDescriptor(JSObject*, ExecState*, const Identifier&, PropertyDescriptor&);
+ bool hasOwnPropertyForWrite(ExecState*, const Identifier&);
+ JS_EXPORT_PRIVATE static void put(JSCell*, ExecState*, const Identifier&, JSValue, PutPropertySlot&);
- virtual void defineGetter(ExecState*, const Identifier& propertyName, JSObject* getterFunc, unsigned attributes);
- virtual void defineSetter(ExecState*, const Identifier& propertyName, JSObject* setterFunc, unsigned attributes);
+ JS_EXPORT_PRIVATE static void putDirectVirtual(JSObject*, ExecState*, const Identifier& propertyName, JSValue, unsigned attributes);
- // Linked list of all global objects that use the same JSGlobalData.
- JSGlobalObject*& head() { return d()->globalData->head; }
- JSGlobalObject* next() { return d()->next; }
+ JS_EXPORT_PRIVATE static void defineGetter(JSObject*, ExecState*, const Identifier& propertyName, JSObject* getterFunc, unsigned attributes);
+ JS_EXPORT_PRIVATE static void defineSetter(JSObject*, ExecState*, const Identifier& propertyName, JSObject* setterFunc, unsigned attributes);
+ JS_EXPORT_PRIVATE static bool defineOwnProperty(JSObject*, ExecState*, const Identifier& propertyName, PropertyDescriptor&, bool shouldThrow);
+
+ // We use this in the code generator as we perform symbol table
+ // lookups prior to initializing the properties
+ bool symbolTableHasProperty(const Identifier& propertyName);
// The following accessors return pristine values, even if a script
// replaces the global object's associated property.
- RegExpConstructor* regExpConstructor() const { return d()->regExpConstructor; }
-
- ErrorConstructor* errorConstructor() const { return d()->errorConstructor; }
- NativeErrorConstructor* evalErrorConstructor() const { return d()->evalErrorConstructor; }
- NativeErrorConstructor* rangeErrorConstructor() const { return d()->rangeErrorConstructor; }
- NativeErrorConstructor* referenceErrorConstructor() const { return d()->referenceErrorConstructor; }
- NativeErrorConstructor* syntaxErrorConstructor() const { return d()->syntaxErrorConstructor; }
- NativeErrorConstructor* typeErrorConstructor() const { return d()->typeErrorConstructor; }
- NativeErrorConstructor* URIErrorConstructor() const { return d()->URIErrorConstructor; }
-
- GlobalEvalFunction* evalFunction() const { return d()->evalFunction; }
-
- ObjectPrototype* objectPrototype() const { return d()->objectPrototype; }
- FunctionPrototype* functionPrototype() const { return d()->functionPrototype; }
- ArrayPrototype* arrayPrototype() const { return d()->arrayPrototype; }
- BooleanPrototype* booleanPrototype() const { return d()->booleanPrototype; }
- StringPrototype* stringPrototype() const { return d()->stringPrototype; }
- NumberPrototype* numberPrototype() const { return d()->numberPrototype; }
- DatePrototype* datePrototype() const { return d()->datePrototype; }
- RegExpPrototype* regExpPrototype() const { return d()->regExpPrototype; }
-
- JSObject* methodCallDummy() const { return d()->methodCallDummy; }
-
- Structure* argumentsStructure() const { return d()->argumentsStructure.get(); }
- Structure* arrayStructure() const { return d()->arrayStructure.get(); }
- Structure* booleanObjectStructure() const { return d()->booleanObjectStructure.get(); }
- Structure* callbackConstructorStructure() const { return d()->callbackConstructorStructure.get(); }
- Structure* callbackFunctionStructure() const { return d()->callbackFunctionStructure.get(); }
- Structure* callbackObjectStructure() const { return d()->callbackObjectStructure.get(); }
- Structure* dateStructure() const { return d()->dateStructure.get(); }
- Structure* emptyObjectStructure() const { return d()->emptyObjectStructure.get(); }
- Structure* errorStructure() const { return d()->errorStructure.get(); }
- Structure* functionStructure() const { return d()->functionStructure.get(); }
- Structure* numberObjectStructure() const { return d()->numberObjectStructure.get(); }
- Structure* prototypeFunctionStructure() const { return d()->prototypeFunctionStructure.get(); }
- Structure* regExpMatchesArrayStructure() const { return d()->regExpMatchesArrayStructure.get(); }
- Structure* regExpStructure() const { return d()->regExpStructure.get(); }
- Structure* stringObjectStructure() const { return d()->stringObjectStructure.get(); }
-
- void setProfileGroup(unsigned value) { d()->profileGroup = value; }
- unsigned profileGroup() const { return d()->profileGroup; }
-
- Debugger* debugger() const { return d()->debugger; }
- void setDebugger(Debugger* debugger) { d()->debugger = debugger; }
-
- virtual bool supportsProfiling() const { return false; }
-
- int recursion() { return d()->recursion; }
- void incRecursion() { ++d()->recursion; }
- void decRecursion() { --d()->recursion; }
-
- ScopeChain& globalScopeChain() { return d()->globalScopeChain; }
+ RegExpConstructor* regExpConstructor() const { return m_regExpConstructor.get(); }
+
+ ErrorConstructor* errorConstructor() const { return m_errorConstructor.get(); }
+ NativeErrorConstructor* evalErrorConstructor() const { return m_evalErrorConstructor.get(); }
+ NativeErrorConstructor* rangeErrorConstructor() const { return m_rangeErrorConstructor.get(); }
+ NativeErrorConstructor* referenceErrorConstructor() const { return m_referenceErrorConstructor.get(); }
+ NativeErrorConstructor* syntaxErrorConstructor() const { return m_syntaxErrorConstructor.get(); }
+ NativeErrorConstructor* typeErrorConstructor() const { return m_typeErrorConstructor.get(); }
+ NativeErrorConstructor* URIErrorConstructor() const { return m_URIErrorConstructor.get(); }
- virtual bool isGlobalObject() const { return true; }
+ JSFunction* evalFunction() const { return m_evalFunction.get(); }
+ JSFunction* callFunction() const { return m_callFunction.get(); }
+ JSFunction* applyFunction() const { return m_applyFunction.get(); }
+ GetterSetter* throwTypeErrorGetterSetter(ExecState* exec)
+ {
+ if (!m_throwTypeErrorGetterSetter)
+ createThrowTypeError(exec);
+ return m_throwTypeErrorGetterSetter.get();
+ }
- virtual ExecState* globalExec();
+ ObjectPrototype* objectPrototype() const { return m_objectPrototype.get(); }
+ FunctionPrototype* functionPrototype() const { return m_functionPrototype.get(); }
+ ArrayPrototype* arrayPrototype() const { return m_arrayPrototype.get(); }
+ BooleanPrototype* booleanPrototype() const { return m_booleanPrototype.get(); }
+ StringPrototype* stringPrototype() const { return m_stringPrototype.get(); }
+ NumberPrototype* numberPrototype() const { return m_numberPrototype.get(); }
+ DatePrototype* datePrototype() const { return m_datePrototype.get(); }
+ RegExpPrototype* regExpPrototype() const { return m_regExpPrototype.get(); }
+
+ JSObject* methodCallDummy() const { return m_methodCallDummy.get(); }
+
+ Structure* argumentsStructure() const { return m_argumentsStructure.get(); }
+ Structure* arrayStructure() const { return m_arrayStructure.get(); }
+ Structure* booleanObjectStructure() const { return m_booleanObjectStructure.get(); }
+ Structure* callbackConstructorStructure() const { return m_callbackConstructorStructure.get(); }
+ Structure* callbackFunctionStructure() const { return m_callbackFunctionStructure.get(); }
+ Structure* callbackObjectStructure() const { return m_callbackObjectStructure.get(); }
+ Structure* dateStructure() const { return m_dateStructure.get(); }
+ Structure* emptyObjectStructure() const { return m_emptyObjectStructure.get(); }
+ Structure* nullPrototypeObjectStructure() const { return m_nullPrototypeObjectStructure.get(); }
+ Structure* errorStructure() const { return m_errorStructure.get(); }
+ Structure* functionStructure() const { return m_functionStructure.get(); }
+ Structure* boundFunctionStructure() const { return m_boundFunctionStructure.get(); }
+ Structure* namedFunctionStructure() const { return m_namedFunctionStructure.get(); }
+ size_t functionNameOffset() const { return m_functionNameOffset; }
+ Structure* numberObjectStructure() const { return m_numberObjectStructure.get(); }
+ Structure* internalFunctionStructure() const { return m_internalFunctionStructure.get(); }
+ Structure* regExpMatchesArrayStructure() const { return m_regExpMatchesArrayStructure.get(); }
+ Structure* regExpStructure() const { return m_regExpStructure.get(); }
+ Structure* stringObjectStructure() const { return m_stringObjectStructure.get(); }
+
+ void setProfileGroup(unsigned value) { createRareDataIfNeeded(); m_rareData->profileGroup = value; }
+ unsigned profileGroup() const
+ {
+ if (!m_rareData)
+ return 0;
+ return m_rareData->profileGroup;
+ }
- virtual bool shouldInterruptScriptBeforeTimeout() const { return false; }
- virtual bool shouldInterruptScript() const { return true; }
+ Debugger* debugger() const { return m_debugger; }
+ void setDebugger(Debugger* debugger) { m_debugger = debugger; }
- virtual bool allowsAccessFrom(const JSGlobalObject*) const { return true; }
+ const GlobalObjectMethodTable* globalObjectMethodTable() const { return m_globalObjectMethodTable; }
- virtual bool isDynamicScope() const;
+ static bool allowsAccessFrom(const JSGlobalObject*, ExecState*) { return true; }
+ static bool supportsProfiling(const JSGlobalObject*) { return false; }
+ static bool supportsRichSourceInfo(const JSGlobalObject*) { return true; }
- HashSet<GlobalCodeBlock*>& codeBlocks() { return d()->codeBlocks; }
+ ScopeChainNode* globalScopeChain() { return m_globalScopeChain.get(); }
- void copyGlobalsFrom(RegisterFile&);
- void copyGlobalsTo(RegisterFile&);
-
- void resetPrototype(JSValue prototype);
+ JS_EXPORT_PRIVATE ExecState* globalExec();
+
+ static bool shouldInterruptScriptBeforeTimeout(const JSGlobalObject*) { return false; }
+ static bool shouldInterruptScript(const JSGlobalObject*) { return true; }
+
+ bool isDynamicScope(bool& requiresDynamicChecks) const;
+
+ void setEvalEnabled(bool enabled) { m_evalEnabled = enabled; }
+ bool evalEnabled() { return m_evalEnabled; }
+
+ void resizeRegisters(size_t newSize);
+
+ void resetPrototype(JSGlobalData&, JSValue prototype);
+
+ JSGlobalData& globalData() const { return *Heap::heap(this)->globalData(); }
- JSGlobalData* globalData() { return d()->globalData.get(); }
- JSGlobalObjectData* d() const { return static_cast<JSGlobalObjectData*>(JSVariableObject::d); }
+ static Structure* createStructure(JSGlobalData& globalData, JSValue prototype)
+ {
+ return Structure::create(globalData, 0, prototype, TypeInfo(GlobalObjectType, StructureFlags), &s_info);
+ }
+
+ void registerWeakMap(OpaqueJSWeakObjectMap* map)
+ {
+ createRareDataIfNeeded();
+ m_rareData->weakMaps.add(map);
+ }
- static PassRefPtr<Structure> createStructure(JSValue prototype)
+ void unregisterWeakMap(OpaqueJSWeakObjectMap* map)
{
- return Structure::create(prototype, TypeInfo(ObjectType, StructureFlags), AnonymousSlotCount);
+ if (m_rareData)
+ m_rareData->weakMaps.remove(map);
}
+ double weakRandomNumber() { return m_weakRandom.get(); }
protected:
- static const unsigned StructureFlags = OverridesGetOwnPropertySlot | OverridesMarkChildren | OverridesGetPropertyNames | JSVariableObject::StructureFlags;
+ static const unsigned StructureFlags = OverridesGetOwnPropertySlot | OverridesVisitChildren | OverridesGetPropertyNames | JSVariableObject::StructureFlags;
struct GlobalPropertyInfo {
GlobalPropertyInfo(const Identifier& i, JSValue v, unsigned a)
JSValue value;
unsigned attributes;
};
- void addStaticGlobals(GlobalPropertyInfo*, int count);
+ JS_EXPORT_PRIVATE void addStaticGlobals(GlobalPropertyInfo*, int count);
private:
- static void destroyJSGlobalObjectData(void*);
-
+ friend class LLIntOffsetsExtractor;
+
// FIXME: Fold reset into init.
- void init(JSObject* thisValue);
+ JS_EXPORT_PRIVATE void init(JSObject* thisValue);
void reset(JSValue prototype);
- void setRegisters(Register* registers, Register* registerArray, size_t count);
+ void createThrowTypeError(ExecState*);
- void* operator new(size_t); // can only be allocated with JSGlobalData
+ void setRegisters(WriteBarrier<Unknown>* registers, PassOwnArrayPtr<WriteBarrier<Unknown> > registerArray, size_t count);
+ JS_EXPORT_PRIVATE static void clearRareData(JSCell*);
};
JSGlobalObject* asGlobalObject(JSValue);
inline JSGlobalObject* asGlobalObject(JSValue value)
{
ASSERT(asObject(value)->isGlobalObject());
- return static_cast<JSGlobalObject*>(asObject(value));
+ return jsCast<JSGlobalObject*>(asObject(value));
}
- inline void JSGlobalObject::setRegisters(Register* registers, Register* registerArray, size_t count)
+ inline void JSGlobalObject::setRegisters(WriteBarrier<Unknown>* registers, PassOwnArrayPtr<WriteBarrier<Unknown> > registerArray, size_t count)
{
JSVariableObject::setRegisters(registers, registerArray);
- d()->registerArraySize = count;
- }
-
- inline void JSGlobalObject::addStaticGlobals(GlobalPropertyInfo* globals, int count)
- {
- size_t oldSize = d()->registerArraySize;
- size_t newSize = oldSize + count;
- Register* registerArray = new Register[newSize];
- if (d()->registerArray)
- memcpy(registerArray + count, d()->registerArray.get(), oldSize * sizeof(Register));
- setRegisters(registerArray + newSize, registerArray, newSize);
-
- for (int i = 0, index = -static_cast<int>(oldSize) - 1; i < count; ++i, --index) {
- GlobalPropertyInfo& global = globals[i];
- ASSERT(global.attributes & DontDelete);
- SymbolTableEntry newEntry(index, global.attributes);
- symbolTable().add(global.identifier.ustring().rep(), newEntry);
- registerAt(index) = global.value;
- }
- }
-
- inline bool JSGlobalObject::getOwnPropertySlot(ExecState* exec, const Identifier& propertyName, PropertySlot& slot)
- {
- if (JSVariableObject::getOwnPropertySlot(exec, propertyName, slot))
- return true;
- return symbolTableGet(propertyName, slot);
- }
-
- inline bool JSGlobalObject::getOwnPropertyDescriptor(ExecState* exec, const Identifier& propertyName, PropertyDescriptor& descriptor)
- {
- if (symbolTableGet(propertyName, descriptor))
- return true;
- return JSVariableObject::getOwnPropertyDescriptor(exec, propertyName, descriptor);
+ m_registerArraySize = count;
}
inline bool JSGlobalObject::hasOwnPropertyForWrite(ExecState* exec, const Identifier& propertyName)
{
PropertySlot slot;
- if (JSVariableObject::getOwnPropertySlot(exec, propertyName, slot))
+ if (JSVariableObject::getOwnPropertySlot(this, exec, propertyName, slot))
return true;
bool slotIsWriteable;
return symbolTableGet(propertyName, slot, slotIsWriteable);
}
- inline JSValue Structure::prototypeForLookup(ExecState* exec) const
+ inline bool JSGlobalObject::symbolTableHasProperty(const Identifier& propertyName)
{
- if (typeInfo().type() == ObjectType)
- return m_prototype;
+ SymbolTableEntry entry = symbolTable().inlineGet(propertyName.impl());
+ return !entry.isNull();
+ }
-#if USE(JSVALUE32)
- if (typeInfo().type() == StringType)
- return exec->lexicalGlobalObject()->stringPrototype();
+ inline JSValue Structure::prototypeForLookup(ExecState* exec) const
+ {
+ if (isObject())
+ return m_prototype.get();
- ASSERT(typeInfo().type() == NumberType);
- return exec->lexicalGlobalObject()->numberPrototype();
-#else
ASSERT(typeInfo().type() == StringType);
return exec->lexicalGlobalObject()->stringPrototype();
-#endif
}
inline StructureChain* Structure::prototypeChain(ExecState* exec) const
// We cache our prototype chain so our clients can share it.
if (!isValid(exec, m_cachedPrototypeChain.get())) {
JSValue prototype = prototypeForLookup(exec);
- m_cachedPrototypeChain = StructureChain::create(prototype.isNull() ? 0 : asObject(prototype)->structure());
+ m_cachedPrototypeChain.set(exec->globalData(), this, StructureChain::create(exec->globalData(), prototype.isNull() ? 0 : asObject(prototype)->structure()));
}
return m_cachedPrototypeChain.get();
}
return false;
JSValue prototype = prototypeForLookup(exec);
- RefPtr<Structure>* cachedStructure = cachedPrototypeChain->head();
+ WriteBarrier<Structure>* cachedStructure = cachedPrototypeChain->head();
while(*cachedStructure && !prototype.isNull()) {
- if (asObject(prototype)->structure() != *cachedStructure)
+ if (asObject(prototype)->structure() != cachedStructure->get())
return false;
++cachedStructure;
prototype = asObject(prototype)->prototype();
return globalData().dynamicGlobalObject;
}
+ inline JSObject* constructEmptyObject(ExecState* exec, JSGlobalObject* globalObject)
+ {
+ return constructEmptyObject(exec, globalObject->emptyObjectStructure());
+ }
+
inline JSObject* constructEmptyObject(ExecState* exec)
{
- return new (exec) JSObject(exec->lexicalGlobalObject()->emptyObjectStructure());
+ return constructEmptyObject(exec, exec->lexicalGlobalObject());
}
-
- inline JSObject* constructEmptyObject(ExecState* exec, JSGlobalObject* globalObject)
+
+ inline JSArray* constructEmptyArray(ExecState* exec, JSGlobalObject* globalObject, unsigned initialLength = 0)
{
- return new (exec) JSObject(globalObject->emptyObjectStructure());
+ return JSArray::create(exec->globalData(), globalObject->arrayStructure(), initialLength);
}
- inline JSArray* constructEmptyArray(ExecState* exec)
+ inline JSArray* constructEmptyArray(ExecState* exec, unsigned initialLength = 0)
{
- return new (exec) JSArray(exec->lexicalGlobalObject()->arrayStructure());
+ return constructEmptyArray(exec, exec->lexicalGlobalObject(), initialLength);
}
-
- inline JSArray* constructEmptyArray(ExecState* exec, JSGlobalObject* globalObject)
+
+ inline JSArray* constructArray(ExecState* exec, JSGlobalObject* globalObject, const ArgList& values)
{
- return new (exec) JSArray(globalObject->arrayStructure());
+ JSGlobalData& globalData = exec->globalData();
+ unsigned length = values.size();
+ JSArray* array = JSArray::tryCreateUninitialized(globalData, globalObject->arrayStructure(), length);
+
+ // FIXME: we should probably throw an out of memory error here, but
+ // when making this change we should check that all clients of this
+ // function will correctly handle an exception being thrown from here.
+ if (!array)
+ CRASH();
+
+ for (unsigned i = 0; i < length; ++i)
+ array->initializeIndex(globalData, i, values.at(i));
+ array->completeInitialization(length);
+ return array;
}
- inline JSArray* constructEmptyArray(ExecState* exec, unsigned initialLength)
+ inline JSArray* constructArray(ExecState* exec, const ArgList& values)
{
- return new (exec) JSArray(exec->lexicalGlobalObject()->arrayStructure(), initialLength);
+ return constructArray(exec, exec->lexicalGlobalObject(), values);
}
- inline JSArray* constructArray(ExecState* exec, JSValue singleItemValue)
+ inline JSArray* constructArray(ExecState* exec, JSGlobalObject* globalObject, const JSValue* values, unsigned length)
{
- MarkedArgumentBuffer values;
- values.append(singleItemValue);
- return new (exec) JSArray(exec->lexicalGlobalObject()->arrayStructure(), values);
+ JSGlobalData& globalData = exec->globalData();
+ JSArray* array = JSArray::tryCreateUninitialized(globalData, globalObject->arrayStructure(), length);
+
+ // FIXME: we should probably throw an out of memory error here, but
+ // when making this change we should check that all clients of this
+ // function will correctly handle an exception being thrown from here.
+ if (!array)
+ CRASH();
+
+ for (unsigned i = 0; i < length; ++i)
+ array->initializeIndex(globalData, i, values[i]);
+ array->completeInitialization(length);
+ return array;
}
- inline JSArray* constructArray(ExecState* exec, const ArgList& values)
+ inline JSArray* constructArray(ExecState* exec, const JSValue* values, unsigned length)
{
- return new (exec) JSArray(exec->lexicalGlobalObject()->arrayStructure(), values);
+ return constructArray(exec, exec->lexicalGlobalObject(), values, length);
}
- class DynamicGlobalObjectScope : public Noncopyable {
+ class DynamicGlobalObjectScope {
+ WTF_MAKE_NONCOPYABLE(DynamicGlobalObjectScope);
public:
- DynamicGlobalObjectScope(CallFrame* callFrame, JSGlobalObject* dynamicGlobalObject)
- : m_dynamicGlobalObjectSlot(callFrame->globalData().dynamicGlobalObject)
- , m_savedDynamicGlobalObject(m_dynamicGlobalObjectSlot)
- {
- if (!m_dynamicGlobalObjectSlot) {
- m_dynamicGlobalObjectSlot = dynamicGlobalObject;
-
- // Reset the date cache between JS invocations to force the VM
- // to observe time zone changes.
- callFrame->globalData().resetDateCache();
- }
- }
+ JS_EXPORT_PRIVATE DynamicGlobalObjectScope(JSGlobalData&, JSGlobalObject*);
~DynamicGlobalObjectScope()
{
JSGlobalObject* m_savedDynamicGlobalObject;
};
+ inline bool JSGlobalObject::isDynamicScope(bool&) const
+ {
+ return true;
+ }
+
} // namespace JSC
#endif // JSGlobalObject_h
projects / apple / javascriptcore.git / blobdiff