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/Forward.h> 25 #include <wtf/HashMap.h> 26 #include <wtf/Vector.h> 27 28 namespace WebCore { 29 30 class Element; 31 32 struct CollectionCache { 33 WTF_MAKE_FAST_ALLOCATED; 34 public: 35 CollectionCache(); 36 CollectionCache(const CollectionCache&); 37 CollectionCache& operator=(const CollectionCache& other) 38 { 39 CollectionCache tmp(other); 40 swap(tmp); 41 return *this; 42 } 43 ~CollectionCache(); 44 45 void reset(); 46 void swap(CollectionCache&); 47 48 void checkConsistency(); 49 50 typedef HashMap<AtomicStringImpl*, Vector<Element*>*> NodeCacheMap; 51 52 uint64_t version; 53 Element* current; 54 unsigned position; 55 unsigned length; 56 int elementsArrayPosition; 57 NodeCacheMap idCache; 58 NodeCacheMap nameCache; 59 bool hasLength; 60 bool hasNameCache; 61 62 private: 63 static void copyCacheMap(NodeCacheMap&, const NodeCacheMap&); 64 }; 65 66 #if ASSERT_DISABLED 67 inline void CollectionCache::checkConsistency() { } 68 #endif 69 70 } // namespace 71 72 #endif 73
