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/*
* Copyright (C) 2008 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of Apple Computer, Inc. ("Apple") nor the names of
* its contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef JSNotAnObject_h
#define JSNotAnObject_h
#include "object.h"
namespace KJS {
// This unholy class is used to allow us to avoid multiple exception checks
// in certain SquirrelFish opcodes -- effectively it just silently consumes
// any operations performed on the result of a failed toObject call.
class JSNotAnObject : public JSObject {
public:
JSNotAnObject(JSObject* exception)
: m_exception(exception)
{
}
// JSValue methods
virtual JSValue* toPrimitive(ExecState*, JSType preferredType = UnspecifiedType) const;
virtual bool getPrimitiveNumber(ExecState*, double& number, JSValue*&);
virtual bool toBoolean(ExecState*) const;
virtual double toNumber(ExecState*) const;
virtual UString toString(ExecState*) const;
virtual JSObject* toObject(ExecState*) const;
// Marking
virtual void mark();
// JSObject methods
virtual bool getOwnPropertySlot(ExecState*, const Identifier& propertyName, PropertySlot&);
virtual bool getOwnPropertySlot(ExecState*, unsigned propertyName, PropertySlot&);
virtual void put(ExecState*, const Identifier& propertyName, JSValue*);
virtual void put(ExecState*, unsigned propertyName, JSValue*);
virtual bool deleteProperty(ExecState*, const Identifier& propertyName);
virtual bool deleteProperty(ExecState*, unsigned propertyName);
virtual JSValue* defaultValue(ExecState*, JSType hint) const;
virtual JSObject* construct(ExecState*, const List&);
virtual JSObject* construct(ExecState*, const List&, const Identifier& functionName, const UString& sourceURL, int lineNumber);
virtual JSValue* callAsFunction(ExecState*, JSObject* thisObj, const List&);
virtual void getPropertyNames(ExecState*, PropertyNameArray&);
private:
JSObject* m_exception;
};
} // namespace KJS
#endif // JSNotAnObject_h
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