Oilpan: Introduce TempRangeScope to avoid needless Range attaches on Document.

Source/core/dom/Document.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2001 Dirk Mueller (mueller@kde.org)
  *           (C) 2006 Alexey Proskuryakov (ap@webkit.org)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2011, 2012 Apple Inc. All rights reserved.
  * Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
  * Copyright (C) 2008, 2009, 2011, 2012 Google Inc. All rights reserved.
  * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies)
  * Copyright (C) Research In Motion Limited 2010-2011. All rights reserved.
@@ skipping 3745 matching lines @@
     for (WillBeHeapHashSet<RawPtrWillBeWeakMember<NodeIterator> >::const_iterator it = nodeIteratorsList.begin(); it != nodeIteratorsEnd; ++it) {
         if ((*it)->root() == node) {
             detachNodeIterator(*it);
             newDocument.attachNodeIterator(*it);
         }
     }
 }
 
 void Document::updateRangesAfterChildrenChanged(ContainerNode* container)
 {
+    ASSERT(!TemporaryRangeScope::active());
     if (!m_ranges.isEmpty()) {
         AttachedRangeSet::const_iterator end = m_ranges.end();
         for (AttachedRangeSet::const_iterator it = m_ranges.begin(); it != end; ++it)
             (*it)->nodeChildrenChanged(container);
     }
 }
 
 void Document::updateRangesAfterNodeMovedToAnotherDocument(const Node& node)
 {
+    ASSERT(!TemporaryRangeScope::active());
     ASSERT(node.document() != this);
     if (m_ranges.isEmpty())
         return;
     AttachedRangeSet ranges = m_ranges;
     AttachedRangeSet::const_iterator end = ranges.end();
     for (AttachedRangeSet::const_iterator it = ranges.begin(); it != end; ++it)
         (*it)->updateOwnerDocumentIfNeeded();
 }
 
 void Document::nodeChildrenWillBeRemoved(ContainerNode& container)
 {
+    ASSERT(!TemporaryRangeScope::active());
     NoEventDispatchAssertion assertNoEventDispatch;
     if (!m_ranges.isEmpty()) {
         AttachedRangeSet::const_iterator end = m_ranges.end();
         for (AttachedRangeSet::const_iterator it = m_ranges.begin(); it != end; ++it)
             (*it)->nodeChildrenWillBeRemoved(container);
     }
 
     WillBeHeapHashSet<RawPtrWillBeWeakMember<NodeIterator> >::const_iterator nodeIteratorsEnd = m_nodeIterators.end();
     for (WillBeHeapHashSet<RawPtrWillBeWeakMember<NodeIterator> >::const_iterator it = m_nodeIterators.begin(); it != nodeIteratorsEnd; ++it) {
         for (Node* n = container.firstChild(); n; n = n->nextSibling())
             (*it)->nodeWillBeRemoved(*n);
     }
 
     if (LocalFrame* frame = this->frame()) {
         for (Node* n = container.firstChild(); n; n = n->nextSibling()) {
             frame->eventHandler().nodeWillBeRemoved(*n);
             frame->selection().nodeWillBeRemoved(*n);
             frame->page()->dragCaretController().nodeWillBeRemoved(*n);
         }
     }
 }
 
 void Document::nodeWillBeRemoved(Node& n)
 {
+    ASSERT(!TemporaryRangeScope::active());
     WillBeHeapHashSet<RawPtrWillBeWeakMember<NodeIterator> >::const_iterator nodeIteratorsEnd = m_nodeIterators.end();
     for (WillBeHeapHashSet<RawPtrWillBeWeakMember<NodeIterator> >::const_iterator it = m_nodeIterators.begin(); it != nodeIteratorsEnd; ++it)
         (*it)->nodeWillBeRemoved(n);
 
     if (!m_ranges.isEmpty()) {
         AttachedRangeSet::const_iterator rangesEnd = m_ranges.end();
         for (AttachedRangeSet::const_iterator it = m_ranges.begin(); it != rangesEnd; ++it)
             (*it)->nodeWillBeRemoved(n);
     }
 
     if (LocalFrame* frame = this->frame()) {
         frame->eventHandler().nodeWillBeRemoved(n);
         frame->selection().nodeWillBeRemoved(n);
         frame->page()->dragCaretController().nodeWillBeRemoved(n);
     }
 }
 
 void Document::didInsertText(Node* text, unsigned offset, unsigned length)
 {
+    ASSERT(!TemporaryRangeScope::active());
     if (!m_ranges.isEmpty()) {
         AttachedRangeSet::const_iterator end = m_ranges.end();
         for (AttachedRangeSet::const_iterator it = m_ranges.begin(); it != end; ++it)
             (*it)->didInsertText(text, offset, length);
     }
 
     // Update the markers for spelling and grammar checking.
     m_markers->shiftMarkers(text, offset, length);
 }
 
 void Document::didRemoveText(Node* text, unsigned offset, unsigned length)
 {
+    ASSERT(!TemporaryRangeScope::active());
     if (!m_ranges.isEmpty()) {
         AttachedRangeSet::const_iterator end = m_ranges.end();
         for (AttachedRangeSet::const_iterator it = m_ranges.begin(); it != end; ++it)
             (*it)->didRemoveText(text, offset, length);
     }
 
     // Update the markers for spelling and grammar checking.
     m_markers->removeMarkers(text, offset, length);
     m_markers->shiftMarkers(text, offset + length, 0 - length);
 }
 
 void Document::didMergeTextNodes(Text& oldNode, unsigned offset)
 {
+    ASSERT(!TemporaryRangeScope::active());
     if (!m_ranges.isEmpty()) {
         NodeWithIndex oldNodeWithIndex(oldNode);
         AttachedRangeSet::const_iterator end = m_ranges.end();
         for (AttachedRangeSet::const_iterator it = m_ranges.begin(); it != end; ++it)
             (*it)->didMergeTextNodes(oldNodeWithIndex, offset);
     }
 
     if (m_frame)
         m_frame->selection().didMergeTextNodes(oldNode, offset);
 
     // FIXME: This should update markers for spelling and grammar checking.
 }
 
 void Document::didSplitTextNode(Text& oldNode)
 {
+    ASSERT(!TemporaryRangeScope::active());
     if (!m_ranges.isEmpty()) {
         AttachedRangeSet::const_iterator end = m_ranges.end();
         for (AttachedRangeSet::const_iterator it = m_ranges.begin(); it != end; ++it)
             (*it)->didSplitTextNode(oldNode);
     }
 
     if (m_frame)
         m_frame->selection().didSplitTextNode(oldNode);
 
     // FIXME: This should update markers for spelling and grammar checking.
@@ skipping 1992 matching lines @@
     visitor->trace(m_compositorPendingAnimations);
     visitor->trace(m_contextDocument);
     visitor->registerWeakMembers<Document, &Document::clearWeakMembers>(this);
     DocumentSupplementable::trace(visitor);
     TreeScope::trace(visitor);
     ContainerNode::trace(visitor);
     ExecutionContext::trace(visitor);
 }
 
 } // namespace WebCore