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/*
* Copyright (C) 2008, 2009 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.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``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 INC. OR
* 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.
*/
#include "config.h"
#include "JSStaticScopeObject.h"
#include "Error.h"
namespace JSC {
ASSERT_CLASS_FITS_IN_CELL(JSStaticScopeObject);
void JSStaticScopeObject::visitChildren(SlotVisitor& visitor)
{
JSVariableObject::visitChildren(visitor);
visitor.append(&m_registerStore);
}
JSObject* JSStaticScopeObject::toThisObject(ExecState* exec) const
{
return exec->globalThisValue();
}
JSValue JSStaticScopeObject::toStrictThisObject(ExecState*) const
{
return jsNull();
}
void JSStaticScopeObject::put(ExecState* exec, const Identifier& propertyName, JSValue value, PutPropertySlot& slot)
{
if (slot.isStrictMode()) {
// Double lookup in strict mode, but this only occurs when
// a) indirectly writing to an exception slot
// b) writing to a function expression name
// (a) is unlikely, and (b) is an error.
// Also with a single entry the symbol table lookup should simply be
// a pointer compare.
PropertySlot slot;
bool isWritable = true;
symbolTableGet(propertyName, slot, isWritable);
if (!isWritable) {
throwError(exec, createTypeError(exec, StrictModeReadonlyPropertyWriteError));
return;
}
}
if (symbolTablePut(exec->globalData(), propertyName, value))
return;
ASSERT_NOT_REACHED();
}
void JSStaticScopeObject::putWithAttributes(ExecState* exec, const Identifier& propertyName, JSValue value, unsigned attributes)
{
if (symbolTablePutWithAttributes(exec->globalData(), propertyName, value, attributes))
return;
ASSERT_NOT_REACHED();
}
bool JSStaticScopeObject::isDynamicScope(bool&) const
{
return false;
}
bool JSStaticScopeObject::getOwnPropertySlot(ExecState*, const Identifier& propertyName, PropertySlot& slot)
{
return symbolTableGet(propertyName, slot);
}
}
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