/****************************************************************************

**

** Copyright (C) 2010 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.

**

** $QT_BEGIN_LICENSE:LGPL-ONLY$

** GNU Lesser General Public License Usage

** This file may be used under the terms of the GNU Lesser

** 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

** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.

**

** If you have questions regarding the use of this file, please contact

** Nokia at qt-info@nokia.com.

** $QT_END_LICENSE$

**

****************************************************************************/

#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);

    static inline QScriptStringPrivate *get(const QScriptString &q);

    inline void detachFromEngine();

    static inline bool isValid(const QScriptString &q);

    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 QScriptStringPrivate *QScriptStringPrivate::get(const QScriptString &q)

{

    return const_cast<QScriptStringPrivate*>(q.d_func());

}

inline void QScriptStringPrivate::detachFromEngine()

{

    engine = 0;

    identifier = JSC::Identifier();

}

inline bool QScriptStringPrivate::isValid(const QScriptString &q)

{

    return (q.d_ptr && q.d_ptr->engine);

}

QT_END_NAMESPACE

#endif