Source/JavaScriptCore/runtime/StringObject.h

/*
 *  Copyright (C) 1999-2000 Harri Porten (porten@kde.org)
 *  Copyright (C) 2007, 2008 Apple Inc. All rights reserved.
 *
 *  This library is free software; you can redistribute it and/or
 *  modify it under the terms of the GNU Lesser General Public
 *  License as published by the Free Software Foundation; either
 *  version 2 of the License, or (at your option) any later version.
 *
 *  This library is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 *  Lesser General Public License for more details.
 *
 *  You should have received a copy of the GNU Lesser General Public
 *  License along with this library; if not, write to the Free Software
 *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 *
 */

#ifndef StringObject_h
#define StringObject_h

#include "JSWrapperObject.h"
#include "JSString.h"

namespace JSC {

    class StringObject : public JSWrapperObject {
    public:
        typedef JSWrapperObject Base;

        static StringObject* create(ExecState* exec, Structure* structure)
        {
            JSString* string = jsEmptyString(exec);
            return new (allocateCell<StringObject>(*exec->heap())) StringObject(exec->globalData(), structure, string);  
        }
        static StringObject* create(ExecState* exec, Structure* structure, const UString& str)
        {
            JSString* string = jsString(exec, str);
            return new (allocateCell<StringObject>(*exec->heap())) StringObject(exec->globalData(), structure, string);
        }
        static StringObject* create(ExecState*, JSGlobalObject*, JSString*);

        virtual bool getOwnPropertySlot(ExecState*, const Identifier& propertyName, PropertySlot&);
        virtual bool getOwnPropertySlot(ExecState*, unsigned propertyName, PropertySlot&);
        virtual bool getOwnPropertyDescriptor(ExecState*, const Identifier&, PropertyDescriptor&);

        virtual void put(ExecState* exec, const Identifier& propertyName, JSValue, PutPropertySlot&);
        virtual bool deleteProperty(ExecState*, const Identifier& propertyName);
        virtual void getOwnPropertyNames(ExecState*, PropertyNameArray&, EnumerationMode mode = ExcludeDontEnumProperties);

        static const JS_EXPORTDATA ClassInfo s_info;

        JSString* internalValue() const { return asString(JSWrapperObject::internalValue());}

        static Structure* createStructure(JSGlobalData& globalData, JSGlobalObject* globalObject, JSValue prototype)
        {
            return Structure::create(globalData, globalObject, prototype, TypeInfo(ObjectType, StructureFlags), AnonymousSlotCount, &s_info);
        }

    protected:
        void finishCreation(JSGlobalData&, JSString*);
        static const unsigned StructureFlags = OverridesGetOwnPropertySlot | OverridesGetPropertyNames | JSWrapperObject::StructureFlags;
        StringObject(JSGlobalData&, Structure*, JSString*);
    };

    StringObject* asStringObject(JSValue);

    inline StringObject* asStringObject(JSValue value)
    {
        ASSERT(asObject(value)->inherits(&StringObject::s_info));
        return static_cast<StringObject*>(asObject(value));
    }

} // namespace JSC

#endif // StringObject_h