Source/JavaScriptCore/runtime/ErrorInstance.h

/*
 *  Copyright (C) 1999-2000 Harri Porten (porten@kde.org)
 *  Copyright (C) 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 ErrorInstance_h
#define ErrorInstance_h

#include "JSObject.h"

namespace JSC {

    class ErrorInstance : public JSNonFinalObject {
    public:
        typedef JSNonFinalObject Base;

        static const ClassInfo s_info;

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

        static ErrorInstance* create(JSGlobalData& globalData, Structure* structure, const UString& message)
        {
            ErrorInstance* instance = new (allocateCell<ErrorInstance>(globalData.heap)) ErrorInstance(globalData, structure);
            instance->finishCreation(globalData, message);
            return instance;
        }
        static ErrorInstance* create(ExecState* exec, Structure* structure, JSValue message)
        {
            if (message.isUndefined()) {
                ErrorInstance* instance = new (allocateCell<ErrorInstance>(*exec->heap())) ErrorInstance(exec->globalData(), structure);
                instance->finishCreation(exec->globalData(), UString("", 0));
                return instance;
            }
            return create(exec->globalData(), structure, message.toString(exec));
        }

        bool appendSourceToMessage() { return m_appendSourceToMessage; }
        void setAppendSourceToMessage() { m_appendSourceToMessage = true; }
        void clearAppendSourceToMessage() { m_appendSourceToMessage = false; }

        virtual bool isErrorInstance() const { return true; }

    protected:
        explicit ErrorInstance(JSGlobalData&, Structure*);

        void finishCreation(JSGlobalData& globalData, const UString& message)
        {
            Base::finishCreation(globalData);
            ASSERT(inherits(&s_info));
            putDirect(globalData, globalData.propertyNames->message, jsString(&globalData, message), DontEnum);
        }

        bool m_appendSourceToMessage;
    };

} // namespace JSC

#endif // ErrorInstance_h