Source/WebCore/bindings/js/JSDOMStringMapCustom.cpp

/*
 * Copyright (C) 2010, 2014 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. 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 INC. OR ITS CONTRIBUTORS
 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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#include "config.h"
#include "JSDOMStringMap.h"

#include "CustomElementReactionQueue.h"
#include "DOMStringMap.h"
#include "JSNode.h"
#include <runtime/IdentifierInlines.h>
#include <wtf/text/AtomicString.h>

using namespace JSC;

namespace WebCore {

bool JSDOMStringMap::getOwnPropertySlotDelegate(ExecState* exec, PropertyName propertyName, PropertySlot& slot)
{
    if (propertyName.isSymbol())
        return false;
    bool nameIsValid;
    const AtomicString& item = wrapped().item(propertyNameToString(propertyName), nameIsValid);
    if (nameIsValid) {
        slot.setValue(this, ReadOnly | DontDelete | DontEnum, toJS(exec, globalObject(), item));
        return true;
    }
    return false;
}

void JSDOMStringMap::getOwnPropertyNames(JSObject* object, ExecState* exec, PropertyNameArray& propertyNames, EnumerationMode mode)
{
    JSDOMStringMap* thisObject = jsCast<JSDOMStringMap*>(object);
    Vector<String> names;
    thisObject->wrapped().getNames(names);
    size_t length = names.size();
    for (size_t i = 0; i < length; ++i)
        propertyNames.add(Identifier::fromString(exec, names[i]));

    Base::getOwnPropertyNames(thisObject, exec, propertyNames, mode);
}

bool JSDOMStringMap::deleteProperty(JSCell* cell, ExecState* exec, PropertyName propertyName)
{
#if ENABLE(CUSTOM_ELEMENTS)
    CustomElementReactionStack customElementReactionStack;
#endif

    JSDOMStringMap* thisObject = jsCast<JSDOMStringMap*>(cell);
    if (propertyName.isSymbol())
        return Base::deleteProperty(thisObject, exec, propertyName);
    return thisObject->wrapped().deleteItem(propertyNameToString(propertyName));
}

bool JSDOMStringMap::deletePropertyByIndex(JSCell* cell, ExecState* exec, unsigned index)
{
    return deleteProperty(cell, exec, Identifier::from(exec, index));
}

bool JSDOMStringMap::putDelegate(ExecState* exec, PropertyName propertyName, JSValue value, PutPropertySlot&, bool& putResult)
{
    VM& vm = exec->vm();
    auto scope = DECLARE_THROW_SCOPE(vm);

    if (propertyName.isSymbol())
        return false;

#if ENABLE(CUSTOM_ELEMENTS)
    CustomElementReactionStack customElementReactionStack;
#endif

    String stringValue = value.toString(exec)->value(exec);
    RETURN_IF_EXCEPTION(scope, false);

    ExceptionCode ec = 0;
    wrapped().setItem(propertyNameToString(propertyName), stringValue, ec);
    setDOMException(exec, ec);
    putResult = !ec;
    return !ec;
}

} // namespace WebCore