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 QSCRIPTVALUE_P_H

    25 #define QSCRIPTVALUE_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 "wtf/Platform.h"

    41 #include "JSValue.h"

    42 

    43 QT_BEGIN_NAMESPACE

    44 

    45 class QString;

    46 class QScriptEnginePrivate;

    47 

    48 class QScriptValue;

    49 class QScriptValuePrivate

    50 {

    51     Q_DISABLE_COPY(QScriptValuePrivate)

    52 public:

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

    54     inline void operator delete(void*);

    55 

    56     enum Type {

    57         JavaScriptCore,

    58         Number,

    59         String

    60     };

    61 

    62     inline QScriptValuePrivate(QScriptEnginePrivate*);

    63     inline ~QScriptValuePrivate();

    64 

    65     inline void initFrom(JSC::JSValue value);

    66     inline void initFrom(qsreal value);

    67     inline void initFrom(const QString &value);

    68 

    69     inline bool isJSC() const;

    70     inline bool isObject() const;

    71 

    72     QVariant &variantValue() const;

    73     void setVariantValue(const QVariant &value);

    74 

    75     static inline QScriptValuePrivate *get(const QScriptValue &q)

    76     {

    77         return q.d_ptr.data();

    78     }

    79 

    80     static inline QScriptValue toPublic(QScriptValuePrivate *d)

    81     {

    82         return QScriptValue(d);

    83     }

    84 

    85     static inline QScriptEnginePrivate *getEngine(const QScriptValue &q)

    86     {

    87         if (!q.d_ptr)

    88             return 0;

    89         return q.d_ptr->engine;

    90     }

    91 

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

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

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

    95     QScriptValue propertyHelper(quint32, int resolveMode) const;

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

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

    98                      const QScriptValue::PropertyFlags &flags);

    99     QScriptValue::PropertyFlags propertyFlags(

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

   101 

   102     void detachFromEngine();

   103 

   104     qint64 objectId()

   105     {

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

   107             return (qint64)jscValue.asCell();

   108         else

   109             return -1;

   110     }

   111 

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

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

   114 

   115     QScriptEnginePrivate *engine;

   116     Type type;

   117     JSC::JSValue jscValue;

   118     qsreal numberValue;

   119     QString stringValue;

   120 

   121     // linked list of engine's script values

   122     QScriptValuePrivate *prev;

   123     QScriptValuePrivate *next;

   124 

   125     QBasicAtomicInt ref;

   126 };

   127 

   128 inline QScriptValuePrivate::QScriptValuePrivate(QScriptEnginePrivate *e)

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

   130 {

   131     ref = 0;

   132 }

   133 

   134 inline bool QScriptValuePrivate::isJSC() const

   135 {

   136     return (type == JavaScriptCore);

   137 }

   138 

   139 inline bool QScriptValuePrivate::isObject() const

   140 {

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

   142 }

   143 

   144 // Rest of inline functions implemented in qscriptengine_p.h

   145 

   146 QT_END_NAMESPACE

   147 

   148 #endif