diff options
Diffstat (limited to 'Source/JavaScriptCore/runtime/JSCell.h')
| -rw-r--r-- | Source/JavaScriptCore/runtime/JSCell.h | 189 |
1 files changed, 11 insertions, 178 deletions
diff --git a/Source/JavaScriptCore/runtime/JSCell.h b/Source/JavaScriptCore/runtime/JSCell.h index b28fedd8d..76acb1e55 100644 --- a/Source/JavaScriptCore/runtime/JSCell.h +++ b/Source/JavaScriptCore/runtime/JSCell.h @@ -24,11 +24,9 @@ #define JSCell_h #include "CallData.h" -#include "CallFrame.h" #include "ConstructData.h" #include "Heap.h" #include "JSLock.h" -#include "JSValueInlines.h" #include "SlotVisitor.h" #include "TypedArrayDescriptor.h" #include "WriteBarrier.h" @@ -38,6 +36,7 @@ namespace JSC { class CopyVisitor; +class ExecState; class JSDestructibleObject; class JSGlobalObject; class LLIntOffsetsExtractor; @@ -66,7 +65,7 @@ public: JSCell(CreatingEarlyCellTag); protected: - JSCell(JSGlobalData&, Structure*); + JSCell(VM&, Structure*); JS_EXPORT_PRIVATE static void destroy(JSCell*); public: @@ -79,7 +78,7 @@ public: bool isAPIValueWrapper() const; Structure* structure() const; - void setStructure(JSGlobalData&, Structure*); + void setStructure(VM&, Structure*); void clearStructure() { m_structure.clear(); } const char* className(); @@ -97,6 +96,7 @@ public: JS_EXPORT_PRIVATE JSValue toPrimitive(ExecState*, PreferredPrimitiveType) const; bool getPrimitiveNumber(ExecState*, double& number, JSValue&) const; bool toBoolean(ExecState*) const; + TriState pureToBoolean() const; JS_EXPORT_PRIVATE double toNumber(ExecState*) const; JS_EXPORT_PRIVATE JSObject* toObject(ExecState*, JSGlobalObject*) const; @@ -106,6 +106,7 @@ public: // Object operations, with the toObject operation included. const ClassInfo* classInfo() const; const MethodTable* methodTable() const; + const MethodTable* methodTableForDestruction() const; static void put(JSCell*, ExecState*, PropertyName, JSValue, PutPropertySlot&); static void putByIndex(JSCell*, ExecState*, unsigned propertyName, JSValue, bool shouldThrow); @@ -141,8 +142,8 @@ public: static const TypedArrayType TypedArrayStorageType = TypedArrayNone; protected: - void finishCreation(JSGlobalData&); - void finishCreation(JSGlobalData&, Structure*, CreatingEarlyCellTag); + void finishCreation(VM&); + void finishCreation(VM&, Structure*, CreatingEarlyCellTag); // Base implementation; for non-object classes implements getPropertySlot. static bool getOwnPropertySlot(JSCell*, ExecState*, PropertyName, PropertySlot&); @@ -150,12 +151,12 @@ protected: // Dummy implementations of override-able static functions for classes to put in their MethodTable static JSValue defaultValue(const JSObject*, ExecState*, PreferredPrimitiveType); - static NO_RETURN_DUE_TO_ASSERT void getOwnPropertyNames(JSObject*, ExecState*, PropertyNameArray&, EnumerationMode); - static NO_RETURN_DUE_TO_ASSERT void getOwnNonIndexPropertyNames(JSObject*, ExecState*, PropertyNameArray&, EnumerationMode); - static NO_RETURN_DUE_TO_ASSERT void getPropertyNames(JSObject*, ExecState*, PropertyNameArray&, EnumerationMode); + static NO_RETURN_DUE_TO_CRASH void getOwnPropertyNames(JSObject*, ExecState*, PropertyNameArray&, EnumerationMode); + static NO_RETURN_DUE_TO_CRASH void getOwnNonIndexPropertyNames(JSObject*, ExecState*, PropertyNameArray&, EnumerationMode); + static NO_RETURN_DUE_TO_CRASH void getPropertyNames(JSObject*, ExecState*, PropertyNameArray&, EnumerationMode); static String className(const JSObject*); JS_EXPORT_PRIVATE static bool customHasInstance(JSObject*, ExecState*, JSValue); - static NO_RETURN_DUE_TO_ASSERT void putDirectVirtual(JSObject*, ExecState*, PropertyName, JSValue, unsigned attributes); + static NO_RETURN_DUE_TO_CRASH void putDirectVirtual(JSObject*, ExecState*, PropertyName, JSValue, unsigned attributes); static bool defineOwnProperty(JSObject*, ExecState*, PropertyName, PropertyDescriptor&, bool shouldThrow); static bool getOwnPropertyDescriptor(JSObject*, ExecState*, PropertyName, PropertyDescriptor&); @@ -165,174 +166,6 @@ private: WriteBarrier<Structure> m_structure; }; -inline JSCell::JSCell(CreatingEarlyCellTag) -{ -} - -inline void JSCell::finishCreation(JSGlobalData& globalData) -{ -#if ENABLE(GC_VALIDATION) - ASSERT(globalData.isInitializingObject()); - globalData.setInitializingObjectClass(0); -#else - UNUSED_PARAM(globalData); -#endif - ASSERT(m_structure); -} - -inline Structure* JSCell::structure() const -{ - return m_structure.get(); -} - -inline void JSCell::visitChildren(JSCell* cell, SlotVisitor& visitor) -{ - MARK_LOG_PARENT(visitor, cell); - - visitor.append(&cell->m_structure); -} - -// --- JSValue inlines ---------------------------- - -inline bool JSValue::isString() const -{ - return isCell() && asCell()->isString(); -} - -inline bool JSValue::isPrimitive() const -{ - return !isCell() || asCell()->isString(); -} - -inline bool JSValue::isGetterSetter() const -{ - return isCell() && asCell()->isGetterSetter(); -} - -inline bool JSValue::isObject() const -{ - return isCell() && asCell()->isObject(); -} - -inline bool JSValue::getString(ExecState* exec, String& s) const -{ - return isCell() && asCell()->getString(exec, s); -} - -inline String JSValue::getString(ExecState* exec) const -{ - return isCell() ? asCell()->getString(exec) : String(); -} - -template <typename Base> String HandleConverter<Base, Unknown>::getString(ExecState* exec) const -{ - return jsValue().getString(exec); -} - -inline JSObject* JSValue::getObject() const -{ - return isCell() ? asCell()->getObject() : 0; -} - -ALWAYS_INLINE bool JSValue::getUInt32(uint32_t& v) const -{ - if (isInt32()) { - int32_t i = asInt32(); - v = static_cast<uint32_t>(i); - return i >= 0; - } - if (isDouble()) { - double d = asDouble(); - v = static_cast<uint32_t>(d); - return v == d; - } - return false; -} - -inline JSValue JSValue::toPrimitive(ExecState* exec, PreferredPrimitiveType preferredType) const -{ - return isCell() ? asCell()->toPrimitive(exec, preferredType) : asValue(); -} - -inline bool JSValue::getPrimitiveNumber(ExecState* exec, double& number, JSValue& value) -{ - if (isInt32()) { - number = asInt32(); - value = *this; - return true; - } - if (isDouble()) { - number = asDouble(); - value = *this; - return true; - } - if (isCell()) - return asCell()->getPrimitiveNumber(exec, number, value); - if (isTrue()) { - number = 1.0; - value = *this; - return true; - } - if (isFalse() || isNull()) { - number = 0.0; - value = *this; - return true; - } - ASSERT(isUndefined()); - number = QNaN; - value = *this; - return true; -} - -ALWAYS_INLINE double JSValue::toNumber(ExecState* exec) const -{ - if (isInt32()) - return asInt32(); - if (isDouble()) - return asDouble(); - return toNumberSlowCase(exec); -} - -inline JSObject* JSValue::toObject(ExecState* exec) const -{ - return isCell() ? asCell()->toObject(exec, exec->lexicalGlobalObject()) : toObjectSlowCase(exec, exec->lexicalGlobalObject()); -} - -inline JSObject* JSValue::toObject(ExecState* exec, JSGlobalObject* globalObject) const -{ - return isCell() ? asCell()->toObject(exec, globalObject) : toObjectSlowCase(exec, globalObject); -} - -template<typename T> -void* allocateCell(Heap& heap, size_t size) -{ - ASSERT(size >= sizeof(T)); -#if ENABLE(GC_VALIDATION) - ASSERT(!heap.globalData()->isInitializingObject()); - heap.globalData()->setInitializingObjectClass(&T::s_info); -#endif - JSCell* result = 0; - if (T::needsDestruction && T::hasImmortalStructure) - result = static_cast<JSCell*>(heap.allocateWithImmortalStructureDestructor(size)); - else if (T::needsDestruction && !T::hasImmortalStructure) - result = static_cast<JSCell*>(heap.allocateWithNormalDestructor(size)); - else - result = static_cast<JSCell*>(heap.allocateWithoutDestructor(size)); - result->clearStructure(); - return result; -} - -template<typename T> -void* allocateCell(Heap& heap) -{ - return allocateCell<T>(heap, sizeof(T)); -} - -inline bool isZapped(const JSCell* cell) -{ - return cell->isZapped(); -} - template<typename To, typename From> inline To jsCast(From* from) { |