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 #ifndef CollectionCache_h 22 #define CollectionCache_h 23 24 #include <wtf/HashMap.h> 25 #include <wtf/Vector.h> 26 27 namespace WebCore { 28 29 class AtomicStringImpl; 30 class Element; 31 32 struct CollectionCache : FastAllocBase { 33 CollectionCache(); 34 CollectionCache(const CollectionCache&); 35 CollectionCache& operator=(const CollectionCache& other) 36 { 37 CollectionCache tmp(other); 38 swap(tmp); 39 return *this; 40 } 41 ~CollectionCache(); 42 43 void reset(); 44 void swap(CollectionCache&); 45 46 void checkConsistency(); 47 48 typedef HashMap<AtomicStringImpl*, Vector<Element*>*> NodeCacheMap; 49 50 unsigned version; 51 Element* current; 52 unsigned position; 53 unsigned length; 54 int elementsArrayPosition; 55 NodeCacheMap idCache; 56 NodeCacheMap nameCache; 57 bool hasLength; 58 bool hasNameCache; 59 60 private: 61 static void copyCacheMap(NodeCacheMap&, const NodeCacheMap&); 62 }; 63 64 #if ASSERT_DISABLED 65 inline void CollectionCache::checkConsistency() { } 66 #endif 67 68 } // namespace 69 70 #endif 71
