xref: /external/webkit/Source/WebKit2/Shared/ImmutableDictionary.cpp

/*
 * Copyright (C) 2010 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
 * 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 "ImmutableDictionary.h"

#include "ImmutableArray.h"
#include "WebString.h"

namespace WebKit {

ImmutableDictionary::ImmutableDictionary()
{
}

ImmutableDictionary::ImmutableDictionary(MapType& map)
{
    m_map.swap(map);
}

ImmutableDictionary::~ImmutableDictionary()
{
}

PassRefPtr<ImmutableArray> ImmutableDictionary::keys() const
{
    if (m_map.isEmpty())
        return ImmutableArray::create();

    Vector<RefPtr<APIObject> > vector;
    vector.reserveInitialCapacity(m_map.size());

    MapType::const_iterator::Keys it = m_map.begin().keys();
    MapType::const_iterator::Keys end = m_map.end().keys();
    for (; it != end; ++it)
        vector.uncheckedAppend(WebString::create(*it));

    return ImmutableArray::adopt(vector);
}

} // namespace WebKit