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/*
* Copyright (C) 2011 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.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``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 INC. OR
* 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 JSProxy_h
#define JSProxy_h
#include "JSDestructibleObject.h"
namespace JSC {
class JSProxy : public JSDestructibleObject {
public:
typedef JSDestructibleObject Base;
static JSProxy* create(VM& vm, Structure* structure, JSObject* target)
{
JSProxy* proxy = new (NotNull, allocateCell<JSProxy>(vm.heap)) JSProxy(vm, structure);
proxy->finishCreation(vm, target);
return proxy;
}
static Structure* createStructure(VM& vm, JSGlobalObject* globalObject, JSValue prototype, JSType proxyType = ImpureProxyType)
{
return Structure::create(vm, globalObject, prototype, TypeInfo(proxyType, StructureFlags), info());
}
DECLARE_EXPORT_INFO;
JSObject* target() const { return m_target.get(); }
static ptrdiff_t targetOffset() { return OBJECT_OFFSETOF(JSProxy, m_target); }
protected:
JSProxy(VM& vm, Structure* structure)
: JSDestructibleObject(vm, structure)
{
}
void finishCreation(VM& vm)
{
Base::finishCreation(vm);
}
void finishCreation(VM& vm, JSObject* target)
{
Base::finishCreation(vm);
m_target.set(vm, this, target);
}
static const unsigned StructureFlags = OverridesGetOwnPropertySlot | OverridesGetPropertyNames | InterceptsGetOwnPropertySlotByIndexEvenWhenLengthIsNotZero | Base::StructureFlags;
JS_EXPORT_PRIVATE static void visitChildren(JSCell*, SlotVisitor&);
JS_EXPORT_PRIVATE void setTarget(VM&, JSGlobalObject*);
JS_EXPORT_PRIVATE static String className(const JSObject*);
JS_EXPORT_PRIVATE static bool getOwnPropertySlot(JSObject*, ExecState*, PropertyName, PropertySlot&);
JS_EXPORT_PRIVATE static bool getOwnPropertySlotByIndex(JSObject*, ExecState*, unsigned, PropertySlot&);
JS_EXPORT_PRIVATE static void put(JSCell*, ExecState*, PropertyName, JSValue, PutPropertySlot&);
JS_EXPORT_PRIVATE static void putByIndex(JSCell*, ExecState*, unsigned, JSValue, bool shouldThrow);
JS_EXPORT_PRIVATE static bool deleteProperty(JSCell*, ExecState*, PropertyName);
JS_EXPORT_PRIVATE static bool deletePropertyByIndex(JSCell*, ExecState*, unsigned);
JS_EXPORT_PRIVATE static void getOwnPropertyNames(JSObject*, ExecState*, PropertyNameArray&, EnumerationMode);
JS_EXPORT_PRIVATE static void getPropertyNames(JSObject*, ExecState*, PropertyNameArray&, EnumerationMode);
JS_EXPORT_PRIVATE static uint32_t getEnumerableLength(ExecState*, JSObject*);
JS_EXPORT_PRIVATE static void getStructurePropertyNames(JSObject*, ExecState*, PropertyNameArray&, EnumerationMode);
JS_EXPORT_PRIVATE static void getGenericPropertyNames(JSObject*, ExecState*, PropertyNameArray&, EnumerationMode);
JS_EXPORT_PRIVATE static bool defineOwnProperty(JSObject*, ExecState*, PropertyName, const PropertyDescriptor&, bool shouldThrow);
private:
WriteBarrier<JSObject> m_target;
};
} // namespace JSC
#endif // JSProxy_h
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