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

**

** 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.

**

** $QT_BEGIN_LICENSE:LGPL$

** 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.

**

** GNU Lesser General Public License Usage

** Alternatively, 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.

**

** In addition, as a special exception, Nokia gives you certain additional

** 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

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

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** $QT_END_LICENSE$

**

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

#ifndef QSCRIPTVALUE_P_H

#define QSCRIPTVALUE_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 "wtf/Platform.h"

#include "JSValue.h"

QT_BEGIN_NAMESPACE

class QString;

class QScriptEnginePrivate;

class QScriptValue;

class QScriptValuePrivate

{

    Q_DISABLE_COPY(QScriptValuePrivate)

public:

    inline void* operator new(size_t, QScriptEnginePrivate*);

    inline void operator delete(void*);

    enum Type {

        JavaScriptCore,

        Number,

        String

    };

    inline QScriptValuePrivate(QScriptEnginePrivate*);

    inline ~QScriptValuePrivate();

    inline void initFrom(JSC::JSValue value);

    inline void initFrom(qsreal value);

    inline void initFrom(const QString &value);

    inline bool isJSC() const;

    inline bool isObject() const;

    QVariant &variantValue() const;

    void setVariantValue(const QVariant &value);

    static inline QScriptValuePrivate *get(const QScriptValue &q)

    {

        return q.d_ptr.data();

    }

    static inline QScriptValue toPublic(QScriptValuePrivate *d)

    {

        return QScriptValue(d);

    }

    static inline QScriptEnginePrivate *getEngine(const QScriptValue &q)

    {

        if (!q.d_ptr)

            return 0;

        return q.d_ptr->engine;

    }

    inline QScriptValue property(const JSC::Identifier &id, int resolveMode) const;

    QScriptValue propertyHelper(const JSC::Identifier &id, int resolveMode) const;

    inline QScriptValue property(quint32 index, int resolveMode) const;

    QScriptValue propertyHelper(quint32, int resolveMode) const;

    inline QScriptValue property(const QString &, int resolveMode) const;

    void setProperty(const JSC::Identifier &id, const QScriptValue &value,

                     const QScriptValue::PropertyFlags &flags);

    QScriptValue::PropertyFlags propertyFlags(

        const JSC::Identifier &id, const QScriptValue::ResolveFlags &mode) const;

    void detachFromEngine();

    qint64 objectId()

    {

        if ( (type == JavaScriptCore) && (engine) )

            return (qint64)jscValue.asCell();

        else

            return -1;

    }

    static inline void saveException(JSC::ExecState*, JSC::JSValue*);

    static inline void restoreException(JSC::ExecState*, JSC::JSValue);

    QScriptEnginePrivate *engine;

    Type type;

    JSC::JSValue jscValue;

    qsreal numberValue;

    QString stringValue;

    // linked list of engine's script values

    QScriptValuePrivate *prev;

    QScriptValuePrivate *next;

    QBasicAtomicInt ref;

};

inline QScriptValuePrivate::QScriptValuePrivate(QScriptEnginePrivate *e)

    : engine(e), prev(0), next(0)

{

    ref = 0;

}

inline bool QScriptValuePrivate::isJSC() const

{

    return (type == JavaScriptCore);

}

inline bool QScriptValuePrivate::isObject() const

{

    return isJSC() && jscValue && jscValue.isObject();

}

// Rest of inline functions implemented in qscriptengine_p.h

QT_END_NAMESPACE

#endif