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    41 

    42 #ifndef QSCRIPTOBJECT_P_H

    43 #define QSCRIPTOBJECT_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 "JSObject.h"

    59 

    60 QT_BEGIN_NAMESPACE

    61 

    62 class QScriptObjectDelegate;

    63 

    64 class QScriptObject : public JSC::JSObject

    65 {

    66 public:

    67      // work around CELL_SIZE limitation

    68     struct Data

    69     {

    70         JSC::JSValue data; // QScriptValue::data

    71         QScriptObjectDelegate *delegate;

    72         bool isMarking; // recursion guard

    73 

    74         Data() : delegate(0), isMarking(false) {}

    75         ~Data();

    76     };

    77 

    78     explicit QScriptObject(WTF::PassRefPtr<JSC::Structure> sid);

    79     virtual ~QScriptObject();

    80 

    81     virtual bool getOwnPropertySlot(JSC::ExecState*,

    82                                     const JSC::Identifier& propertyName,

    83                                     JSC::PropertySlot&);

    84     virtual void put(JSC::ExecState* exec, const JSC::Identifier& propertyName,

    85                      JSC::JSValue, JSC::PutPropertySlot&);

    86     virtual bool deleteProperty(JSC::ExecState*,

    87                                 const JSC::Identifier& propertyName,

    88                                 bool checkDontDelete = true);

    89     virtual bool getPropertyAttributes(JSC::ExecState*, const JSC::Identifier&,

    90                                        unsigned&) const;

    91     virtual void getOwnPropertyNames(JSC::ExecState*, JSC::PropertyNameArray&,

    92                                      bool includeNonEnumerable = false);

    93     virtual void markChildren(JSC::MarkStack& markStack);

    94     virtual JSC::CallType getCallData(JSC::CallData&);

    95     virtual JSC::ConstructType getConstructData(JSC::ConstructData&);

    96     virtual bool hasInstance(JSC::ExecState*, JSC::JSValue value, JSC::JSValue proto);

    97     virtual bool compareToObject(JSC::ExecState*, JSC::JSObject*);

    98 

    99     virtual const JSC::ClassInfo* classInfo() const { return &info; }

   100     static const JSC::ClassInfo info;

   101 

   102     static WTF::PassRefPtr<JSC::Structure> createStructure(JSC::JSValue prototype)

   103     {

   104         return JSC::Structure::create(prototype, JSC::TypeInfo(JSC::ObjectType, JSC::ImplementsHasInstance | JSC::OverridesHasInstance));

   105     }

   106 

   107     inline JSC::JSValue data() const;

   108     inline void setData(JSC::JSValue data);

   109 

   110     inline QScriptObjectDelegate *delegate() const;

   111     inline void setDelegate(QScriptObjectDelegate *delegate);

   112 

   113 protected:

   114     Data *d;

   115 };

   116 

   117 class QScriptObjectPrototype : public QScriptObject

   118 {

   119 public:

   120     QScriptObjectPrototype(JSC::ExecState*, WTF::PassRefPtr<JSC::Structure>,

   121                            JSC::Structure* prototypeFunctionStructure);

   122 };

   123 

   124 class QScriptObjectDelegate

   125 {

   126 public:

   127     enum Type {

   128         QtObject,

   129         Variant,

   130         ClassObject

   131     };

   132 

   133     QScriptObjectDelegate();

   134     virtual ~QScriptObjectDelegate();

   135 

   136     virtual Type type() const = 0;

   137 

   138     virtual bool getOwnPropertySlot(QScriptObject*, JSC::ExecState*,

   139                                     const JSC::Identifier& propertyName,

   140                                     JSC::PropertySlot&);

   141     virtual void put(QScriptObject*, JSC::ExecState* exec, const JSC::Identifier& propertyName,

   142                      JSC::JSValue, JSC::PutPropertySlot&);

   143     virtual bool deleteProperty(QScriptObject*, JSC::ExecState*,

   144                                 const JSC::Identifier& propertyName,

   145                                 bool checkDontDelete = true);

   146     virtual bool getPropertyAttributes(const QScriptObject*, JSC::ExecState*,

   147                                        const JSC::Identifier&, unsigned&) const;

   148     virtual void getOwnPropertyNames(QScriptObject*, JSC::ExecState*, JSC::PropertyNameArray&,

   149                                      bool includeNonEnumerable = false);

   150     virtual void markChildren(QScriptObject*, JSC::MarkStack& markStack);

   151     virtual JSC::CallType getCallData(QScriptObject*, JSC::CallData&);

   152     virtual JSC::ConstructType getConstructData(QScriptObject*, JSC::ConstructData&);

   153     virtual bool hasInstance(QScriptObject*, JSC::ExecState*,

   154                              JSC::JSValue value, JSC::JSValue proto);

   155     virtual bool compareToObject(QScriptObject*, JSC::ExecState*, JSC::JSObject*);

   156 

   157 private:

   158     Q_DISABLE_COPY(QScriptObjectDelegate)

   159 };

   160 

   161 inline JSC::JSValue QScriptObject::data() const

   162 {

   163     if (!d)

   164         return JSC::JSValue();

   165     return d->data;

   166 }

   167 

   168 inline void QScriptObject::setData(JSC::JSValue data)

   169 {

   170     if (!d)

   171         d = new Data();

   172     d->data = data;

   173 }

   174 

   175 inline QScriptObjectDelegate *QScriptObject::delegate() const

   176 {

   177     if (!d)

   178         return 0;

   179     return d->delegate;

   180 }

   181 

   182 inline void QScriptObject::setDelegate(QScriptObjectDelegate *delegate)

   183 {

   184     if (!d)

   185         d = new Data();

   186     else

   187         delete d->delegate;

   188     d->delegate = delegate;

   189 }

   190 

   191 QT_END_NAMESPACE

   192 

   193 #endif