JavaScriptCore-1218.tar.gz

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

diff --git a/runtime/JSPropertyNameIterator.h b/runtime/JSPropertyNameIterator.h
index 3f533a0bf0b7b4cd64649bee9994f5549969a0c1..ba931b131648edf81a0fdf180e00ff34864da9df 100644 (file)
--- a/runtime/JSPropertyNameIterator.h
+++ b/runtime/JSPropertyNameIterator.h
@@ -38,65 +38,79 @@ namespace JSC {
 
     class Identifier;
     class JSObject;
+    class LLIntOffsetsExtractor;
 
     class JSPropertyNameIterator : public JSCell {
         friend class JIT;
 
     public:
-        static JSPropertyNameIterator* create(ExecState*, JSObject*);
-        
-        static PassRefPtr<Structure> createStructure(JSValue prototype)
-        {
-            return Structure::create(prototype, TypeInfo(CompoundType, OverridesMarkChildren), AnonymousSlotCount);
-        }
-        
-        virtual ~JSPropertyNameIterator();
+        typedef JSCell Base;
 
-        virtual bool isPropertyNameIterator() const { return true; }
-
-        virtual void markChildren(MarkStack&);
+        static JSPropertyNameIterator* create(ExecState*, JSObject*);
 
-        bool getOffset(size_t i, int& offset)
+        static const bool needsDestruction = true;
+        static const bool hasImmortalStructure = true;
+        static void destroy(JSCell*);
+       
+        static Structure* createStructure(VM& vm, JSGlobalObject* globalObject, JSValue prototype)
         {
-            if (i >= m_numCacheableSlots)
-                return false;
-            offset = i;
-            return true;
+            return Structure::create(vm, globalObject, prototype, TypeInfo(CompoundType, OverridesVisitChildren), &s_info);
         }
 
+        static void visitChildren(JSCell*, SlotVisitor&);
+
         JSValue get(ExecState*, JSObject*, size_t i);
         size_t size() { return m_jsStringsSize; }
 
-        void setCachedStructure(Structure* structure) { m_cachedStructure = structure; }
-        Structure* cachedStructure() { return m_cachedStructure; }
+        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(NonNullPassRefPtr<StructureChain> cachedPrototypeChain) { m_cachedPrototypeChain = cachedPrototypeChain; }
+        void setCachedPrototypeChain(VM& vm, StructureChain* cachedPrototypeChain) { m_cachedPrototypeChain.set(vm, this, cachedPrototypeChain); }
         StructureChain* cachedPrototypeChain() { return m_cachedPrototypeChain.get(); }
+        
+        static JS_EXPORTDATA const ClassInfo s_info;
+
+    protected:
+        void finishCreation(ExecState* exec, PropertyNameArrayData* propertyNameArrayData, JSObject* object)
+        {
+            Base::finishCreation(exec->vm());
+            PropertyNameArrayData::PropertyNameVector& propertyNameVector = propertyNameArrayData->propertyNameVector();
+            for (size_t i = 0; i < m_jsStringsSize; ++i)
+                m_jsStrings[i].set(exec->vm(), this, jsOwnedString(exec, propertyNameVector[i].string()));
+            m_cachedStructureInlineCapacity = object->structure()->inlineCapacity();
+        }
 
     private:
+        friend class LLIntOffsetsExtractor;
+        
         JSPropertyNameIterator(ExecState*, PropertyNameArrayData* propertyNameArrayData, size_t numCacheableSlot);
 
-        Structure* m_cachedStructure;
-        RefPtr<StructureChain> m_cachedPrototypeChain;
+        WriteBarrier<Structure> m_cachedStructure;
+        WriteBarrier<StructureChain> m_cachedPrototypeChain;
         uint32_t m_numCacheableSlots;
         uint32_t m_jsStringsSize;
-        OwnArrayPtr<JSValue> m_jsStrings;
+        unsigned m_cachedStructureInlineCapacity;
+        OwnArrayPtr<WriteBarrier<Unknown> > m_jsStrings;
     };
 
-    inline void Structure::setEnumerationCache(JSPropertyNameIterator* enumerationCache)
+    ALWAYS_INLINE JSPropertyNameIterator* Register::propertyNameIterator() const
     {
-        ASSERT(!isDictionary());
-        m_enumerationCache = enumerationCache;
+        return jsCast<JSPropertyNameIterator*>(jsValue().asCell());
     }
 
-    inline void Structure::clearEnumerationCache(JSPropertyNameIterator* enumerationCache)
+    inline JSPropertyNameIterator* StructureRareData::enumerationCache()
     {
-        m_enumerationCache.clear(enumerationCache);
+        return m_enumerationCache.get();
     }
-
-    inline JSPropertyNameIterator* Structure::enumerationCache()
+    
+    inline void StructureRareData::setEnumerationCache(VM& vm, const Structure* owner, JSPropertyNameIterator* value)
     {
-        return m_enumerationCache.get();
+        m_enumerationCache.set(vm, owner, value);
     }
 
 } // namespace JSC