1 /*

     2  *  Copyright (C) 2006 Maks Orlovich

     3  *  Copyright (C) 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.

     4  *

     5  *  This library is free software; you can redistribute it and/or

     6  *  modify it under the terms of the GNU Library General Public

     7  *  License as published by the Free Software Foundation; either

     8  *  version 2 of the License, or (at your option) any later version.

     9  *

    10  *  This library is distributed in the hope that it will be useful,

    11  *  but WITHOUT ANY WARRANTY; without even the implied warranty of

    12  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

    13  *  Library General Public License for more details.

    14  *

    15  *  You should have received a copy of the GNU Library General Public License

    16  *  along with this library; see the file COPYING.LIB.  If not, write to

    17  *  the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,

    18  *  Boston, MA 02110-1301, USA.

    19  *

    20  */

    21 

    22 #ifndef JSWrapperObject_h

    23 #define JSWrapperObject_h

    24 

    25 #include "JSObject.h"

    26 

    27 namespace JSC {

    28 

    29     // This class is used as a base for classes such as String,

    30     // Number, Boolean and Date which are wrappers for primitive types.

    31     class JSWrapperObject : public JSObject {

    32     protected:

    33         explicit JSWrapperObject(NonNullPassRefPtr<Structure>);

    34 

    35     public:

    36         JSValue internalValue() const { return m_internalValue; }

    37         void setInternalValue(JSValue);

    38 

    39         static PassRefPtr<Structure> createStructure(JSValue prototype) 

    40         { 

    41             return Structure::create(prototype, TypeInfo(ObjectType, StructureFlags), AnonymousSlotCount);

    42         }

    43 

    44     protected:

    45         static const unsigned AnonymousSlotCount = 1 + JSObject::AnonymousSlotCount;

    46 

    47     private:

    48         virtual void markChildren(MarkStack&);

    49         

    50         JSValue m_internalValue;

    51     };

    52 

    53     inline JSWrapperObject::JSWrapperObject(NonNullPassRefPtr<Structure> structure)

    54         : JSObject(structure)

    55     {

    56         putAnonymousValue(0, jsNull());

    57     }

    58 

    59     inline void JSWrapperObject::setInternalValue(JSValue value)

    60     {

    61         ASSERT(value);

    62         ASSERT(!value.isObject());

    63         m_internalValue = value;

    64         putAnonymousValue(0, value);

    65     }

    66 

    67 } // namespace JSC

    68 

    69 #endif // JSWrapperObject_h