WebCore/bindings/js/JSDOMStringMapCustom.cpp
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Fri, 17 Sep 2010 09:02:29 +0300
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/*
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 * Copyright (C) 2010 Apple Inc. All rights reserved.
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 *
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 * Redistribution and use in source and binary forms, with or without
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 * modification, are permitted provided that the following conditions
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 * are met:
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 * 1. Redistributions of source code must retain the above copyright
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 *    notice, this list of conditions and the following disclaimer.
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 * 2. Redistributions in binary form must reproduce the above copyright
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 *    notice, this list of conditions and the following disclaimer in the
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 *    documentation and/or other materials provided with the distribution.
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 *
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 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
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 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
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 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
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 * THE POSSIBILITY OF SUCH DAMAGE.
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 */
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#include "config.h"
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#include "JSDOMStringMap.h"
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#include "AtomicString.h"
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#include "DOMStringMap.h"
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using namespace JSC;
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namespace WebCore {
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bool JSDOMStringMap::canGetItemsForName(ExecState*, DOMStringMap* impl, const Identifier& propertyName)
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{
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    return impl->contains(identifierToAtomicString(propertyName));
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}
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JSValue JSDOMStringMap::nameGetter(ExecState* exec, JSValue slotBase, const Identifier& propertyName)
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{
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    JSDOMStringMap* thisObj = static_cast<JSDOMStringMap*>(asObject(slotBase));
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    return jsString(exec, thisObj->impl()->item(identifierToAtomicString(propertyName)));
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}
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void JSDOMStringMap::getOwnPropertyNames(ExecState* exec, PropertyNameArray& propertyNames, EnumerationMode mode)
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{
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    Vector<String> names;
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    m_impl->getNames(names);
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    size_t length = names.size();
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    for (size_t i = 0; i < length; ++i)
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        propertyNames.add(Identifier(exec, stringToUString(names[i])));
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    Base::getOwnPropertyNames(exec, propertyNames, mode);
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}
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bool JSDOMStringMap::deleteProperty(ExecState* exec, const Identifier& propertyName)
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{
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    // Only perform the custom delete if the object doesn't have a native property by this name.
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    // Since hasProperty() would end up calling canGetItemsForName() and be fooled, we need to check
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    // the native property slots manually.
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    PropertySlot slot;
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    if (getStaticValueSlot<JSDOMStringMap, Base>(exec, s_info.propHashTable(exec), this, propertyName, slot))
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        return false;
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    JSValue prototype = this->prototype();
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    if (prototype.isObject() && asObject(prototype)->hasProperty(exec, propertyName))
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        return false;
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    ExceptionCode ec = 0;
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    m_impl->deleteItem(identifierToString(propertyName), ec);
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    setDOMException(exec, ec);
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    return true;
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}
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bool JSDOMStringMap::putDelegate(ExecState* exec, const Identifier& propertyName, JSValue value, PutPropertySlot&)
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{
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    // Only perform the custom put if the object doesn't have a native property by this name.
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    // Since hasProperty() would end up calling canGetItemsForName() and be fooled, we need to check
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    // the native property slots manually.
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    PropertySlot slot;
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    if (getStaticValueSlot<JSDOMStringMap, Base>(exec, s_info.propHashTable(exec), this, propertyName, slot))
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        return false;
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    JSValue prototype = this->prototype();
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    if (prototype.isObject() && asObject(prototype)->hasProperty(exec, propertyName))
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        return false;
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    String stringValue = ustringToString(value.toString(exec));
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    if (exec->hadException())
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        return true;
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    ExceptionCode ec = 0;
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    impl()->setItem(identifierToString(propertyName), stringValue, ec);
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    setDOMException(exec, ec);
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    return true;
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}
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} // namespace WebCore