Move NodeListsNodeData class out of NodeRareData.h

Source/core/dom/NodeRareData.h

 /*
  * Copyright (C) 2008, 2010 Apple Inc. All rights reserved.
  * Copyright (C) 2008 David Smith <catfish.man@gmail.com>
  *
  * 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.
  *
  */
 
 #ifndef NodeRareData_h
 #define NodeRareData_h
 
-#include "core/dom/ChildNodeList.h"
-#include "core/dom/EmptyNodeList.h"
-#include "core/dom/LiveNodeList.h"
 #include "core/dom/MutationObserverRegistration.h"
-#include "core/dom/QualifiedName.h"
-#include "core/dom/TagCollection.h"
+#include "core/dom/NodeListsNodeData.h"
 #include "platform/heap/Handle.h"
 #include "wtf/HashSet.h"
 #include "wtf/OwnPtr.h"
 #include "wtf/PassOwnPtr.h"
-#include "wtf/text/AtomicString.h"
-#include "wtf/text/StringHash.h"
 
 namespace WebCore {
 
-class NodeListsNodeData FINAL : public NoBaseWillBeGarbageCollectedFinalized<NodeListsNodeData> {
-    WTF_MAKE_NONCOPYABLE(NodeListsNodeData);
-    WTF_MAKE_FAST_ALLOCATED_WILL_BE_REMOVED;
-public:
-    void clearChildNodeListCache()
-    {
-        if (m_childNodeList && m_childNodeList->isChildNodeList())
-            toChildNodeList(m_childNodeList)->invalidateCache();
-    }
-
-    PassRefPtrWillBeRawPtr<ChildNodeList> ensureChildNodeList(ContainerNode& node)
-    {
-        if (m_childNodeList)
-            return toChildNodeList(m_childNodeList);
-        RefPtrWillBeRawPtr<ChildNodeList> list = ChildNodeList::create(node);
-        m_childNodeList = list.get();
-        return list.release();
-    }
-
-    PassRefPtrWillBeRawPtr<EmptyNodeList> ensureEmptyChildNodeList(Node& node)
-    {
-        if (m_childNodeList)
-            return toEmptyNodeList(m_childNodeList);
-        RefPtrWillBeRawPtr<EmptyNodeList> list = EmptyNodeList::create(node);
-        m_childNodeList = list.get();
-        return list.release();
-    }
-
-#if !ENABLE(OILPAN)
-    void removeChildNodeList(ChildNodeList* list)
-    {
-        ASSERT(m_childNodeList == list);
-        if (deleteThisAndUpdateNodeRareDataIfAboutToRemoveLastList(list->ownerNode()))
-            return;
-        m_childNodeList = nullptr;
-    }
-
-    void removeEmptyChildNodeList(EmptyNodeList* list)
-    {
-        ASSERT(m_childNodeList == list);
-        if (deleteThisAndUpdateNodeRareDataIfAboutToRemoveLastList(list->ownerNode()))
-            return;
-        m_childNodeList = nullptr;
-    }
-#endif
-
-    struct NodeListAtomicCacheMapEntryHash {
-        static unsigned hash(const std::pair<unsigned char, StringImpl*>& entry)
-        {
-            return DefaultHash<StringImpl*>::Hash::hash(entry.second) + entry.first;
-        }
-        static bool equal(const std::pair<unsigned char, StringImpl*>& a, const std::pair<unsigned char, StringImpl*>& b) { return a == b; }
-        static const bool safeToCompareToEmptyOrDeleted = DefaultHash<StringImpl*>::Hash::safeToCompareToEmptyOrDeleted;
-    };
-
-    // Oilpan: keep a weak reference to the collection objects.
-    // Explicit object unregistration in a non-Oilpan setting
-    // on object destruction is replaced by the garbage collector
-    // clearing out their weak reference.
-    typedef WillBeHeapHashMap<std::pair<unsigned char, StringImpl*>, RawPtrWillBeWeakMember<LiveNodeListBase>, NodeListAtomicCacheMapEntryHash> NodeListAtomicNameCacheMap;
-    typedef WillBeHeapHashMap<QualifiedName, RawPtrWillBeWeakMember<TagCollection> > TagCollectionCacheNS;
-
-    template<typename T>
-    PassRefPtrWillBeRawPtr<T> addCache(ContainerNode& node, CollectionType collectionType, const AtomicString& name)
-    {
-        NodeListAtomicNameCacheMap::AddResult result = m_atomicNameCaches.add(namedNodeListKey(collectionType, name), nullptr);
-        if (!result.isNewEntry) {
-#if ENABLE(OILPAN)
-            return static_cast<T*>(result.storedValue->value.get());
-#else
-            return static_cast<T*>(result.storedValue->value);
-#endif
-        }
-
-        RefPtrWillBeRawPtr<T> list = T::create(node, collectionType, name);
-        result.storedValue->value = list.get();
-        return list.release();
-    }
-
-    template<typename T>
-    PassRefPtrWillBeRawPtr<T> addCache(ContainerNode& node, CollectionType collectionType)
-    {
-        NodeListAtomicNameCacheMap::AddResult result = m_atomicNameCaches.add(namedNodeListKey(collectionType, starAtom), nullptr);
-        if (!result.isNewEntry) {
-#if ENABLE(OILPAN)
-            return static_cast<T*>(result.storedValue->value.get());
-#else
-            return static_cast<T*>(result.storedValue->value);
-#endif
-        }
-
-        RefPtrWillBeRawPtr<T> list = T::create(node, collectionType);
-        result.storedValue->value = list.get();
-        return list.release();
-    }
-
-    template<typename T>
-    T* cached(CollectionType collectionType)
-    {
-        return static_cast<T*>(m_atomicNameCaches.get(namedNodeListKey(collectionType, starAtom)));
-    }
-
-    PassRefPtrWillBeRawPtr<TagCollection> addCache(ContainerNode& node, const AtomicString& namespaceURI, const AtomicString& localName)
-    {
-        QualifiedName name(nullAtom, localName, namespaceURI);
-        TagCollectionCacheNS::AddResult result = m_tagCollectionCacheNS.add(name, nullptr);
-        if (!result.isNewEntry)
-            return result.storedValue->value;
-
-        RefPtrWillBeRawPtr<TagCollection> list = TagCollection::create(node, namespaceURI, localName);
-        result.storedValue->value = list.get();
-        return list.release();
-    }
-
-#if !ENABLE(OILPAN)
-    void removeCache(LiveNodeListBase* list, CollectionType collectionType, const AtomicString& name = starAtom)
-    {
-        ASSERT(list == m_atomicNameCaches.get(namedNodeListKey(collectionType, name)));
-        if (deleteThisAndUpdateNodeRareDataIfAboutToRemoveLastList(list->ownerNode()))
-            return;
-        m_atomicNameCaches.remove(namedNodeListKey(collectionType, name));
-    }
-
-    void removeCache(LiveNodeListBase* list, const AtomicString& namespaceURI, const AtomicString& localName)
-    {
-        QualifiedName name(nullAtom, localName, namespaceURI);
-        ASSERT(list == m_tagCollectionCacheNS.get(name));
-        if (deleteThisAndUpdateNodeRareDataIfAboutToRemoveLastList(list->ownerNode()))
-            return;
-        m_tagCollectionCacheNS.remove(name);
-    }
-#endif
-
-    static PassOwnPtrWillBeRawPtr<NodeListsNodeData> create()
-    {
-        return adoptPtrWillBeNoop(new NodeListsNodeData);
-    }
-
-    void invalidateCaches(const QualifiedName* attrName = 0);
-
-    bool isEmpty() const
-    {
-        return !m_childNodeList && m_atomicNameCaches.isEmpty() && m_tagCollectionCacheNS.isEmpty();
-    }
-
-    void adoptTreeScope()
-    {
-        invalidateCaches();
-    }
-
-    void adoptDocument(Document& oldDocument, Document& newDocument)
-    {
-        ASSERT(oldDocument != newDocument);
-
-        NodeListAtomicNameCacheMap::const_iterator atomicNameCacheEnd = m_atomicNameCaches.end();
-        for (NodeListAtomicNameCacheMap::const_iterator it = m_atomicNameCaches.begin(); it != atomicNameCacheEnd; ++it) {
-            LiveNodeListBase* list = it->value;
-            list->didMoveToDocument(oldDocument, newDocument);
-        }
-
-        TagCollectionCacheNS::const_iterator tagEnd = m_tagCollectionCacheNS.end();
-        for (TagCollectionCacheNS::const_iterator it = m_tagCollectionCacheNS.begin(); it != tagEnd; ++it) {
-            LiveNodeListBase* list = it->value;
-            ASSERT(!list->isRootedAtDocument());
-            list->didMoveToDocument(oldDocument, newDocument);
-        }
-    }
-
-    void trace(Visitor*);
-
-private:
-    NodeListsNodeData()
-        : m_childNodeList(nullptr)
-    { }
-
-    std::pair<unsigned char, StringImpl*> namedNodeListKey(CollectionType type, const AtomicString& name)
-    {
-        // Holding the raw StringImpl is safe because |name| is retained by the NodeList and the NodeList
-        // is reponsible for removing itself from the cache on deletion.
-        return std::pair<unsigned char, StringImpl*>(type, name.impl());
-    }
-
-#if !ENABLE(OILPAN)
-    bool deleteThisAndUpdateNodeRareDataIfAboutToRemoveLastList(Node&);
-#endif
-
-    // Can be a ChildNodeList or an EmptyNodeList.
-    RawPtrWillBeWeakMember<NodeList> m_childNodeList;
-    NodeListAtomicNameCacheMap m_atomicNameCaches;
-    TagCollectionCacheNS m_tagCollectionCacheNS;
-};
-
 class NodeMutationObserverData FINAL : public NoBaseWillBeGarbageCollected<NodeMutationObserverData> {
     WTF_MAKE_NONCOPYABLE(NodeMutationObserverData);
     WTF_MAKE_FAST_ALLOCATED_WILL_BE_REMOVED;
 public:
     WillBeHeapVector<OwnPtrWillBeMember<MutationObserverRegistration> > registry;
     WillBeHeapHashSet<RawPtrWillBeMember<MutationObserverRegistration> > transientRegistry;
 
     static PassOwnPtrWillBeRawPtr<NodeMutationObserverData> create()
     {
         return adoptPtrWillBeNoop(new NodeMutationObserverData);
@@ skipping 78 matching lines @@
     OwnPtrWillBeMember<NodeListsNodeData> m_nodeLists;
     OwnPtrWillBeMember<NodeMutationObserverData> m_mutationObserverData;
 
     unsigned m_connectedFrameCount : ConnectedFrameCountBits;
     unsigned m_elementFlags : NumberOfElementFlags;
     unsigned m_restyleFlags : NumberOfDynamicRestyleFlags;
 protected:
     unsigned m_isElementRareData : 1;
 };
 
-#if !ENABLE(OILPAN)
-inline bool NodeListsNodeData::deleteThisAndUpdateNodeRareDataIfAboutToRemoveLastList(Node& ownerNode)
-{
-    ASSERT(ownerNode.nodeLists() == this);
-    if ((m_childNodeList ? 1 : 0) + m_atomicNameCaches.size() + m_tagCollectionCacheNS.size() != 1)
-        return false;
-    ownerNode.clearNodeLists();
-    return true;
-}
-#endif
-
 } // namespace WebCore
 
 #endif // NodeRareData_h