/*

 *  Copyright (C) 1999-2001 Harri Porten (porten@kde.org)

 *  Copyright (C) 2001 Peter Kelly (pmk@post.com)

 *  Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.

 *

 *  This library is free software; you can redistribute it and/or

 *  modify it under the terms of the GNU Library General Public

 *  License as published by the Free Software Foundation; either

 *  version 2 of the License, or (at your option) any later version.

 *

 *  This library is distributed in the hope that it will be useful,

 *  but WITHOUT ANY WARRANTY; without even the implied warranty of

 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

 *  Library General Public License for more details.

 *

 *  You should have received a copy of the GNU Library General Public License

 *  along with this library; see the file COPYING.LIB.  If not, write to

 *  the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,

 *  Boston, MA 02110-1301, USA.

 *

 */

#ifndef GetterSetter_h

#define GetterSetter_h

#include "JSCell.h"

#include "CallFrame.h"

namespace JSC {

    class JSObject;

    // This is an internal value object which stores getter and setter functions

    // for a property.

    class GetterSetter : public JSCell {

        friend class JIT;

    public:

        GetterSetter(ExecState* exec)

            : JSCell(exec->globalData().getterSetterStructure.get())

            , m_getter(0)

            , m_setter(0)

        {

        }

        virtual void markChildren(MarkStack&);

        JSObject* getter() const { return m_getter; }

        void setGetter(JSObject* getter) { m_getter = getter; }

        JSObject* setter() const { return m_setter; }

        void setSetter(JSObject* setter) { m_setter = setter; }

        static PassRefPtr<Structure> createStructure(JSValue prototype)

        {

            return Structure::create(prototype, TypeInfo(GetterSetterType, OverridesMarkChildren), AnonymousSlotCount);

        }

    private:

        virtual bool isGetterSetter() const;

        JSObject* m_getter;

        JSObject* m_setter;  

    };

    GetterSetter* asGetterSetter(JSValue);

    inline GetterSetter* asGetterSetter(JSValue value)

    {

        ASSERT(asCell(value)->isGetterSetter());

        return static_cast<GetterSetter*>(asCell(value));

    }

} // namespace JSC

#endif // GetterSetter_h