JavaScriptCore-7601.1.46.3.tar.gz

[apple/javascriptcore.git] / runtime / JSPropertyNameIterator.h

diff --git a/runtime/JSPropertyNameIterator.h b/runtime/JSPropertyNameIterator.h
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--- a/runtime/JSPropertyNameIterator.h
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-/*
- * 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