1 /****************************************************************************

     2 **

     3 ** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).

     4 ** All rights reserved.

     5 ** Contact: Nokia Corporation (qt-info@nokia.com)

     6 **

     7 ** This file is part of the QtScript module of the Qt Toolkit.

     8 **

     9 ** $QT_BEGIN_LICENSE:LGPL$

    10 ** No Commercial Usage

    11 ** This file contains pre-release code and may not be distributed.

    12 ** You may use this file in accordance with the terms and conditions

    13 ** contained in the Technology Preview License Agreement accompanying

    14 ** this package.

    15 **

    16 ** GNU Lesser General Public License Usage

    17 ** Alternatively, this file may be used under the terms of the GNU Lesser

    18 ** General Public License version 2.1 as published by the Free Software

    19 ** Foundation and appearing in the file LICENSE.LGPL included in the

    20 ** packaging of this file.  Please review the following information to

    21 ** ensure the GNU Lesser General Public License version 2.1 requirements

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

    23 **

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

    25 ** rights.  These rights are described in the Nokia Qt LGPL Exception

    26 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.

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

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

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    36 **

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    38 ** $QT_END_LICENSE$

    39 **

    40 ****************************************************************************/

    41 

    42 #ifndef QSCRIPTSTRING_P_H

    43 #define QSCRIPTSTRING_P_H

    44 

    45 //

    46 //  W A R N I N G

    47 //  -------------

    48 //

    49 // This file is not part of the Qt API.  It exists purely as an

    50 // implementation detail.  This header file may change from version to

    51 // version without notice, or even be removed.

    52 //

    53 // We mean it.

    54 //

    55 

    56 #include <QtCore/qobjectdefs.h>

    57 

    58 #include "Identifier.h"

    59 

    60 QT_BEGIN_NAMESPACE

    61 

    62 class QScriptEnginePrivate;

    63 class QScriptStringPrivate

    64 {

    65 public:

    66     enum AllocationType {

    67         StackAllocated,

    68         HeapAllocated

    69     };

    70 

    71     inline QScriptStringPrivate(QScriptEnginePrivate *engine, const JSC::Identifier &id,

    72                                 AllocationType type);

    73     inline ~QScriptStringPrivate();

    74     static inline void init(QScriptString &q, QScriptStringPrivate *d);

    75 

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

    77 

    78     inline void detachFromEngine();

    79 

    80     static inline bool isValid(const QScriptString &q);

    81 

    82     QBasicAtomicInt ref;

    83     QScriptEnginePrivate *engine;

    84     JSC::Identifier identifier;

    85     AllocationType type;

    86 

    87     // linked list of engine's script values

    88     QScriptStringPrivate *prev;

    89     QScriptStringPrivate *next;

    90 };

    91 

    92 inline QScriptStringPrivate::QScriptStringPrivate(QScriptEnginePrivate *e, const JSC::Identifier &id,

    93                                                   AllocationType tp)

    94     : engine(e), identifier(id), type(tp), prev(0), next(0)

    95 {

    96     ref = 0;

    97 }

    98 

    99 inline QScriptStringPrivate::~QScriptStringPrivate()

   100 {

   101 }

   102 

   103 inline void QScriptStringPrivate::init(QScriptString &q, QScriptStringPrivate *d)

   104 {

   105     q.d_ptr = d;

   106 }

   107 

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

   109 {

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

   111 }

   112 

   113 inline void QScriptStringPrivate::detachFromEngine()

   114 {

   115     engine = 0;

   116     identifier = JSC::Identifier();

   117 }

   118 

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

   120 {

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

   122 }

   123 

   124 QT_END_NAMESPACE

   125 

   126 #endif