+struct JSCallbackObjectData : WeakHandleOwner {
+ JSCallbackObjectData(void* privateData, JSClassRef jsClass)
+ : privateData(privateData)
+ , jsClass(jsClass)
+ {
+ JSClassRetain(jsClass);
+ }
+
+ ~JSCallbackObjectData()
+ {
+ JSClassRelease(jsClass);
+ }
+
+ JSValue getPrivateProperty(const Identifier& propertyName) const
+ {
+ if (!m_privateProperties)
+ return JSValue();
+ return m_privateProperties->getPrivateProperty(propertyName);
+ }
+
+ void setPrivateProperty(JSGlobalData& globalData, JSCell* owner, const Identifier& propertyName, JSValue value)
+ {
+ if (!m_privateProperties)
+ m_privateProperties = adoptPtr(new JSPrivatePropertyMap);
+ m_privateProperties->setPrivateProperty(globalData, owner, propertyName, value);
+ }
+
+ void deletePrivateProperty(const Identifier& propertyName)
+ {
+ if (!m_privateProperties)
+ return;
+ m_privateProperties->deletePrivateProperty(propertyName);
+ }
+
+ void visitChildren(SlotVisitor& visitor)
+ {
+ if (!m_privateProperties)
+ return;
+ m_privateProperties->visitChildren(visitor);
+ }
+
+ void* privateData;
+ JSClassRef jsClass;
+ struct JSPrivatePropertyMap {
+ JSValue getPrivateProperty(const Identifier& propertyName) const
+ {
+ PrivatePropertyMap::const_iterator location = m_propertyMap.find(propertyName.impl());
+ if (location == m_propertyMap.end())
+ return JSValue();
+ return location->second.get();
+ }
+
+ void setPrivateProperty(JSGlobalData& globalData, JSCell* owner, const Identifier& propertyName, JSValue value)
+ {
+ WriteBarrier<Unknown> empty;
+ m_propertyMap.add(propertyName.impl(), empty).first->second.set(globalData, owner, value);
+ }
+
+ void deletePrivateProperty(const Identifier& propertyName)
+ {
+ m_propertyMap.remove(propertyName.impl());
+ }
+
+ void visitChildren(SlotVisitor& visitor)
+ {
+ for (PrivatePropertyMap::iterator ptr = m_propertyMap.begin(); ptr != m_propertyMap.end(); ++ptr) {
+ if (ptr->second)
+ visitor.append(&ptr->second);
+ }
+ }
+
+ private:
+ typedef HashMap<RefPtr<StringImpl>, WriteBarrier<Unknown>, IdentifierRepHash> PrivatePropertyMap;
+ PrivatePropertyMap m_propertyMap;
+ };
+ OwnPtr<JSPrivatePropertyMap> m_privateProperties;
+ virtual void finalize(Handle<Unknown>, void*);
+};
+
+