// -*- mode: c++; c-basic-offset: 4 -*-

/*

 * Copyright (C) 2008 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 COMPUTER, 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 COMPUTER, 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 BatchedTransitionOptimizer_h

#define BatchedTransitionOptimizer_h

#include <wtf/Noncopyable.h>

#include "JSObject.h"

namespace JSC {

    class BatchedTransitionOptimizer : public Noncopyable {

    public:

        BatchedTransitionOptimizer(JSObject* object)

            : m_object(object)

        {

            if (!m_object->structure()->isDictionary())

                m_object->setStructure(Structure::toCacheableDictionaryTransition(m_object->structure()));

        }

        ~BatchedTransitionOptimizer()

        {

            m_object->setStructure(Structure::fromDictionaryTransition(m_object->structure()));

        }

    private:

        JSObject* m_object;

    };

} // namespace JSC

#endif // BatchedTransitionOptimizer_h