+++ /dev/null
-/*
- * Copyright (C) 2008, 2009 Apple Inc. All rights reserved.
- *
- * 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 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.
- */
-
-#ifndef JSPropertyNameIterator_h
-#define JSPropertyNameIterator_h
-
-#include "JSObject.h"
-#include "JSString.h"
-#include "PropertyNameArray.h"
-#include <memory>
-
-namespace JSC {
-
- class Identifier;
- class JSObject;
- class LLIntOffsetsExtractor;
-
- class JSPropertyNameIterator : public JSCell {
- friend class JIT;
-
- public:
- typedef JSCell Base;
-
- static JSPropertyNameIterator* create(ExecState*, JSObject*);
-
- static const bool needsDestruction = true;
- static const bool hasImmortalStructure = true;
- static void destroy(JSCell*);
-
- static Structure* createStructure(VM& vm, JSGlobalObject* globalObject, JSValue prototype)
- {
- return Structure::create(vm, globalObject, prototype, TypeInfo(CompoundType, StructureFlags), info());
- }
-
- static void visitChildren(JSCell*, SlotVisitor&);
-
- JSValue get(ExecState*, JSObject*, size_t i);
- size_t size() { return m_jsStringsSize; }
-
- void setCachedStructure(VM& vm, Structure* structure)
- {
- ASSERT(!m_cachedStructure);
- ASSERT(structure);
- m_cachedStructure.set(vm, this, structure);
- }
- Structure* cachedStructure() { return m_cachedStructure.get(); }
-
- void setCachedPrototypeChain(VM& vm, StructureChain* cachedPrototypeChain) { m_cachedPrototypeChain.set(vm, this, cachedPrototypeChain); }
- StructureChain* cachedPrototypeChain() { return m_cachedPrototypeChain.get(); }
-
- DECLARE_EXPORT_INFO;
-
- protected:
- static const unsigned StructureFlags = OverridesVisitChildren | StructureIsImmortal;
-
- void finishCreation(VM& vm, PropertyNameArrayData* propertyNameArrayData, JSObject* object)
- {
- Base::finishCreation(vm);
- PropertyNameArrayData::PropertyNameVector& propertyNameVector = propertyNameArrayData->propertyNameVector();
- for (size_t i = 0; i < m_jsStringsSize; ++i)
- m_jsStrings[i].set(vm, this, jsOwnedString(&vm, propertyNameVector[i].string()));
- m_cachedStructureInlineCapacity = object->structure()->inlineCapacity();
- }
-
- private:
- friend class LLIntOffsetsExtractor;
-
- JSPropertyNameIterator(ExecState*, PropertyNameArrayData* propertyNameArrayData, size_t numCacheableSlot);
-
- WriteBarrier<Structure> m_cachedStructure;
- WriteBarrier<StructureChain> m_cachedPrototypeChain;
- uint32_t m_numCacheableSlots;
- uint32_t m_jsStringsSize;
- unsigned m_cachedStructureInlineCapacity;
- std::unique_ptr<WriteBarrier<Unknown>[]> m_jsStrings;
- };
-
- ALWAYS_INLINE JSPropertyNameIterator* Register::propertyNameIterator() const
- {
- return jsCast<JSPropertyNameIterator*>(jsValue().asCell());
- }
-
- inline JSPropertyNameIterator* StructureRareData::enumerationCache()
- {
- return m_enumerationCache.get();
- }
-
- inline void StructureRareData::setEnumerationCache(VM& vm, JSPropertyNameIterator* value)
- {
- m_enumerationCache.set(vm, this, value);
- }
-
-} // namespace JSC
-
-#endif // JSPropertyNameIterator_h