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

     2 **

     3 ** Copyright (C) 2010 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 ** $QT_BEGIN_LICENSE:LGPL-ONLY$

    10 ** GNU Lesser General Public License Usage

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

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

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

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

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

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

    17 **

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

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

    20 ** $QT_END_LICENSE$

    21 **

    22 ****************************************************************************/

    23 

    24 #ifndef QSCRIPTSTRING_P_H

    25 #define QSCRIPTSTRING_P_H

    26 

    27 //

    28 //  W A R N I N G

    29 //  -------------

    30 //

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

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

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

    34 //

    35 // We mean it.

    36 //

    37 

    38 #include <QtCore/qobjectdefs.h>

    39 

    40 #include "Identifier.h"

    41 

    42 QT_BEGIN_NAMESPACE

    43 

    44 class QScriptEnginePrivate;

    45 class QScriptStringPrivate

    46 {

    47 public:

    48     enum AllocationType {

    49         StackAllocated,

    50         HeapAllocated

    51     };

    52 

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

    54                                 AllocationType type);

    55     inline ~QScriptStringPrivate();

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

    57 

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

    59 

    60     inline void detachFromEngine();

    61 

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

    63 

    64     QBasicAtomicInt ref;

    65     QScriptEnginePrivate *engine;

    66     JSC::Identifier identifier;

    67     AllocationType type;

    68 

    69     // linked list of engine's script values

    70     QScriptStringPrivate *prev;

    71     QScriptStringPrivate *next;

    72 };

    73 

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

    75                                                   AllocationType tp)

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

    77 {

    78     ref = 0;

    79 }

    80 

    81 inline QScriptStringPrivate::~QScriptStringPrivate()

    82 {

    83 }

    84 

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

    86 {

    87     q.d_ptr = d;

    88 }

    89 

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

    91 {

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

    93 }

    94 

    95 inline void QScriptStringPrivate::detachFromEngine()

    96 {

    97     engine = 0;

    98     identifier = JSC::Identifier();

    99 }

   100 

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

   102 {

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

   104 }

   105 

   106 QT_END_NAMESPACE

   107 

   108 #endif