/*

 * Copyright (C) 2004, 2005, 2006, 2007, 2008 Apple Inc. All rights reserved.

 *

 * This library is free software; you can redistribute it and/or

 * modify it under the terms of the GNU Library General Public

 * License as published by the Free Software Foundation; either

 * version 2 of the License, or (at your option) any later version.

 *

 * This library is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

 * Library General Public License for more details.

 *

 * You should have received a copy of the GNU Library General Public License

 * along with this library; see the file COPYING.LIB.  If not, write to

 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,

 * Boston, MA 02110-1301, USA.

 *

 */

#include "config.h"

#include "CollectionCache.h"

namespace WebCore {

CollectionCache::CollectionCache()

    : version(0)

{

    reset();

}

inline void CollectionCache::copyCacheMap(NodeCacheMap& dest, const NodeCacheMap& src)

{

    ASSERT(dest.isEmpty());

    NodeCacheMap::const_iterator end = src.end();

    for (NodeCacheMap::const_iterator it = src.begin(); it != end; ++it)

        dest.add(it->first, new Vector<Element*>(*it->second));

}

CollectionCache::CollectionCache(const CollectionCache& other)

    : version(other.version)

    , current(other.current)

    , position(other.position)

    , length(other.length)

    , elementsArrayPosition(other.elementsArrayPosition)

    , hasLength(other.hasLength)

    , hasNameCache(other.hasNameCache)

{

    copyCacheMap(idCache, other.idCache);

    copyCacheMap(nameCache, other.nameCache);

}

void CollectionCache::swap(CollectionCache& other)

{

    std::swap(version, other.version);

    std::swap(current, other.current);

    std::swap(position, other.position);

    std::swap(length, other.length);

    std::swap(elementsArrayPosition, other.elementsArrayPosition);

    idCache.swap(other.idCache);

    nameCache.swap(other.nameCache);

    std::swap(hasLength, other.hasLength);

    std::swap(hasNameCache, other.hasNameCache);

}

CollectionCache::~CollectionCache()

{

    deleteAllValues(idCache);

    deleteAllValues(nameCache);

}

void CollectionCache::reset()

{

    current = 0;

    position = 0;

    length = 0;

    hasLength = false;

    elementsArrayPosition = 0;

    deleteAllValues(idCache);

    idCache.clear();

    deleteAllValues(nameCache);

    nameCache.clear();

    hasNameCache = false;

}

#if !ASSERT_DISABLED

void CollectionCache::checkConsistency()

{

    idCache.checkConsistency();

    nameCache.checkConsistency();

}

#endif

} // namespace WebCore