/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the QtScript module of the Qt Toolkit.
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** $QT_BEGIN_LICENSE:LGPL$
** No Commercial Usage
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the Technology Preview License Agreement accompanying
** this package.
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** GNU Lesser General Public License Usage
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** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file.  Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
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**
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** rights.  These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** If you have questions regarding the use of this file, please contact
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** $QT_END_LICENSE$
**
****************************************************************************/

#ifndef QSCRIPTSTRING_P_H
#define QSCRIPTSTRING_P_H

//
//  W A R N I N G
//  -------------
//
// This file is not part of the Qt API.  It exists purely as an
// implementation detail.  This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//

#include <QtCore/qobjectdefs.h>

#include "Identifier.h"

QT_BEGIN_NAMESPACE

class QScriptEnginePrivate;
class QScriptStringPrivate
{
public:
    enum AllocationType {
        StackAllocated,
        HeapAllocated
    };

    inline QScriptStringPrivate(QScriptEnginePrivate *engine, const JSC::Identifier &id,
                                AllocationType type);
    inline ~QScriptStringPrivate();
    static inline void init(QScriptString &q, QScriptStringPrivate *d);

    inline void detachFromEngine();

    QBasicAtomicInt ref;
    QScriptEnginePrivate *engine;
    JSC::Identifier identifier;
    AllocationType type;

    // linked list of engine's script values
    QScriptStringPrivate *prev;
    QScriptStringPrivate *next;
};

inline QScriptStringPrivate::QScriptStringPrivate(QScriptEnginePrivate *e, const JSC::Identifier &id,
                                                  AllocationType tp)
    : engine(e), identifier(id), type(tp), prev(0), next(0)
{
    ref = 0;
}

inline QScriptStringPrivate::~QScriptStringPrivate()
{
}

inline void QScriptStringPrivate::init(QScriptString &q, QScriptStringPrivate *d)
{
    q.d_ptr = d;
}

inline void QScriptStringPrivate::detachFromEngine()
{
    engine = 0;
    identifier = JSC::Identifier();
}

QT_END_NAMESPACE

#endif