WebCore/html/CollectionCache.cpp

   1 /*
   2  * Copyright (C) 2004, 2005, 2006, 2007, 2008 Apple Inc. All rights reserved.
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Library General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2 of the License, or (at your option) any later version.
   8  *
   9  * This library is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Library General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Library General Public License
  15  * along with this library; see the file COPYING.LIB.  If not, write to
  16  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  17  * Boston, MA 02110-1301, USA.
  18  *
  19  */
  20
  21 #include "config.h"
  22 #include "CollectionCache.h"
  23
  24 namespace WebCore {
  25
  26 CollectionCache::CollectionCache()
  27     : version(0)
  28 {
  29     reset();
  30 }
  31
  32 inline void CollectionCache::copyCacheMap(NodeCacheMap& dest, const NodeCacheMap& src)
  33 {
  34     ASSERT(dest.isEmpty());
  35     NodeCacheMap::const_iterator end = src.end();
  36     for (NodeCacheMap::const_iterator it = src.begin(); it != end; ++it)
  37         dest.add(it->first, new Vector<Element*>(*it->second));
  38 }
  39
  40 CollectionCache::CollectionCache(const CollectionCache& other)
  41     : version(other.version)
  42     , current(other.current)
  43     , position(other.position)
  44     , length(other.length)
  45     , elementsArrayPosition(other.elementsArrayPosition)
  46     , hasLength(other.hasLength)
  47     , hasNameCache(other.hasNameCache)
  48 {
  49     copyCacheMap(idCache, other.idCache);
  50     copyCacheMap(nameCache, other.nameCache);
  51 }
  52
  53 void CollectionCache::swap(CollectionCache& other)
  54 {
  55     std::swap(version, other.version);
  56     std::swap(current, other.current);
  57     std::swap(position, other.position);
  58     std::swap(length, other.length);
  59     std::swap(elementsArrayPosition, other.elementsArrayPosition);
  60
  61     idCache.swap(other.idCache);
  62     nameCache.swap(other.nameCache);
  63
  64     std::swap(hasLength, other.hasLength);
  65     std::swap(hasNameCache, other.hasNameCache);
  66 }
  67
  68 CollectionCache::~CollectionCache()
  69 {
  70     deleteAllValues(idCache);
  71     deleteAllValues(nameCache);
  72 }
  73
  74 void CollectionCache::reset()
  75 {
  76     current = 0;
  77     position = 0;
  78     length = 0;
  79     hasLength = false;
  80     elementsArrayPosition = 0;
  81     deleteAllValues(idCache);
  82     idCache.clear();
  83     deleteAllValues(nameCache);
  84     nameCache.clear();
  85     hasNameCache = false;
  86 }
  87
  88 } // namespace WebCore