Oilpan: move Range object to the oilpan heap.

Source/core/editing/TextIterator.cpp

 /*
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2012 Apple Inc. All rights reserved.
  * Copyright (C) 2005 Alexey Proskuryakov.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
@@ skipping 1131 matching lines @@
 
     m_lastTextNodeEndedWithCollapsedSpace = false;
     m_hasEmitted = true;
 }
 
 void TextIterator::emitText(Node* textNode, int textStartOffset, int textEndOffset)
 {
     emitText(textNode, m_node->renderer(), textStartOffset, textEndOffset);
 }
 
-PassRefPtr<Range> TextIterator::range() const
+PassRefPtrWillBeRawPtr<Range> TextIterator::range() const
 {
     // use the current run information, if we have it
     if (m_positionNode) {
         if (m_positionOffsetBaseNode) {
             int index = m_positionOffsetBaseNode->nodeIndex();
             m_positionStartOffset += index;
             m_positionEndOffset += index;
             m_positionOffsetBaseNode = 0;
         }
         return Range::create(m_positionNode->document(), m_positionNode, m_positionStartOffset, m_positionNode, m_positionEndOffset);
     }
 
     // otherwise, return the end of the overall range we were given
     if (m_endContainer)
         return Range::create(m_endContainer->document(), m_endContainer, m_endOffset, m_endContainer, m_endOffset);
 
     return nullptr;
 }
 
 Node* TextIterator::node() const
 {
-    RefPtr<Range> textRange = range();
+    RefPtrWillBeRawPtr<Range> textRange = range();
     if (!textRange)
         return 0;
 
     Node* node = textRange->startContainer();
     if (!node)
         return 0;
     if (node->offsetInCharacters())
         return node;
 
     return node->traverseToChildAt(textRange->startOffset());
@@ skipping 275 matching lines @@
 {
     if (!next)
         return false;
     m_havePassedStartNode |= m_node == m_startNode;
     if (m_havePassedStartNode)
         return false;
     m_node = next;
     return true;
 }
 
-PassRefPtr<Range> SimplifiedBackwardsTextIterator::range() const
+PassRefPtrWillBeRawPtr<Range> SimplifiedBackwardsTextIterator::range() const
 {
     if (m_positionNode)
         return Range::create(m_positionNode->document(), m_positionNode, m_positionStartOffset, m_positionNode, m_positionEndOffset);
 
     return Range::create(m_startNode->document(), m_startNode, m_startOffset, m_startNode, m_startOffset);
 }
 
 // --------
 
 CharacterIterator::CharacterIterator(const Range* range, TextIteratorBehaviorFlags behavior)
@@ skipping 13 matching lines @@
 {
     initialize();
 }
 
 void CharacterIterator::initialize()
 {
     while (!atEnd() && !m_textIterator.length())
         m_textIterator.advance();
 }
 
-PassRefPtr<Range> CharacterIterator::range() const
+PassRefPtrWillBeRawPtr<Range> CharacterIterator::range() const
 {
-    RefPtr<Range> r = m_textIterator.range();
+    RefPtrWillBeRawPtr<Range> r = m_textIterator.range();
     if (!m_textIterator.atEnd()) {
         if (m_textIterator.length() <= 1) {
             ASSERT(!m_runOffset);
         } else {
             Node* n = r->startContainer();
             ASSERT(n == r->endContainer());
             int offset = r->startOffset() + m_runOffset;
             r->setStart(n, offset, ASSERT_NO_EXCEPTION);
             r->setEnd(n, offset + 1, ASSERT_NO_EXCEPTION);
         }
@@ skipping 39 matching lines @@
             count -= runLength;
             m_offset += runLength;
         }
     }
 
     // ran to the end of the m_textIterator... no more runs left
     m_atBreak = true;
     m_runOffset = 0;
 }
 
-static PassRefPtr<Range> characterSubrange(CharacterIterator& it, int offset, int length)
+static PassRefPtrWillBeRawPtr<Range> characterSubrange(CharacterIterator& it, int offset, int length)
 {
     it.advance(offset);
-    RefPtr<Range> start = it.range();
+    RefPtrWillBeRawPtr<Range> start = it.range();
 
     if (length > 1)
         it.advance(length - 1);
-    RefPtr<Range> end = it.range();
+    RefPtrWillBeRawPtr<Range> end = it.range();
 
     return Range::create(start->startContainer()->document(),
         start->startContainer(), start->startOffset(),
         end->endContainer(), end->endOffset());
 }
 
 BackwardsCharacterIterator::BackwardsCharacterIterator(const Range* range, TextIteratorBehaviorFlags behavior)
     : m_offset(0)
     , m_runOffset(0)
     , m_atBreak(true)
     , m_textIterator(range, behavior)
 {
     while (!atEnd() && !m_textIterator.length())
         m_textIterator.advance();
 }
 
-PassRefPtr<Range> BackwardsCharacterIterator::range() const
+PassRefPtrWillBeRawPtr<Range> BackwardsCharacterIterator::range() const
 {
-    RefPtr<Range> r = m_textIterator.range();
+    RefPtrWillBeRawPtr<Range> r = m_textIterator.range();
     if (!m_textIterator.atEnd()) {
         if (m_textIterator.length() <= 1) {
             ASSERT(!m_runOffset);
         } else {
             Node* n = r->startContainer();
             ASSERT(n == r->endContainer());
             int offset = r->endOffset() - m_runOffset;
             r->setStart(n, offset - 1, ASSERT_NO_EXCEPTION);
             r->setEnd(n, offset, ASSERT_NO_EXCEPTION);
         }
@@ skipping 111 matching lines @@
     return m_textIterator.substring(position, length);
 }
 
 UChar WordAwareIterator::characterAt(unsigned index) const
 {
     if (!m_buffer.isEmpty())
         return m_buffer[index];
     return m_textIterator.characterAt(index);
 }
 
+void WordAwareIterator::trace(Visitor* visitor)
+{
+    visitor->trace(m_range);
+}
+
 // --------
 
 static const size_t minimumSearchBufferSize = 8192;
 
 #ifndef NDEBUG
 static bool searcherInUse;
 #endif
 
 static UStringSearch* createSearcher()
 {
@@ skipping 297 matching lines @@
 
 int TextIterator::rangeLength(const Range* r, bool forSelectionPreservation)
 {
     int length = 0;
     for (TextIterator it(r, forSelectionPreservation ? TextIteratorEmitsCharactersBetweenAllVisiblePositions : TextIteratorDefaultBehavior); !it.atEnd(); it.advance())
         length += it.length();
 
     return length;
 }
 
-PassRefPtr<Range> TextIterator::subrange(Range* entireRange, int characterOffset, int characterCount)
+PassRefPtrWillBeRawPtr<Range> TextIterator::subrange(Range* entireRange, int characterOffset, int characterCount)
 {
     CharacterIterator entireRangeIterator(entireRange);
     return characterSubrange(entireRangeIterator, characterOffset, characterCount);
 }
 
 // --------
 
 String plainText(const Range* r, TextIteratorBehaviorFlags behavior)
 {
     // The initial buffer size can be critical for performance: https://bugs.webkit.org/show_bug.cgi?id=81192
     static const unsigned initialCapacity = 1 << 15;
 
     unsigned bufferLength = 0;
     StringBuilder builder;
     builder.reserveCapacity(initialCapacity);
 
     for (TextIterator it(r, behavior); !it.atEnd(); it.advance()) {
         it.appendTextToStringBuilder(builder);
         bufferLength += it.length();
     }
 
     if (!bufferLength)
         return emptyString();
 
     return builder.toString();
 }
 
-static PassRefPtr<Range> collapsedToBoundary(const Range* range, bool forward)
+static PassRefPtrWillBeRawPtr<Range> collapsedToBoundary(const Range* range, bool forward)
 {
-    RefPtr<Range> result = range->cloneRange(ASSERT_NO_EXCEPTION);
+    RefPtrWillBeRawPtr<Range> result = range->cloneRange(ASSERT_NO_EXCEPTION);
     result->collapse(!forward, ASSERT_NO_EXCEPTION);
     return result.release();
 }
 
 static size_t findPlainTextInternal(CharacterIterator& it, const String& target, FindOptions options, size_t& matchStart)
 {
     matchStart = 0;
     size_t matchLength = 0;
 
     SearchBuffer buffer(target, options);
 
     if (buffer.needsMoreContext()) {
-        RefPtr<Range> startRange = it.range();
-        RefPtr<Range> beforeStartRange = startRange->ownerDocument().createRange();
+        RefPtrWillBeRawPtr<Range> startRange = it.range();
+        RefPtrWillBeRawPtr<Range> beforeStartRange = startRange->ownerDocument().createRange();
         beforeStartRange->setEnd(startRange->startContainer(), startRange->startOffset(), IGNORE_EXCEPTION);
         for (SimplifiedBackwardsTextIterator backwardsIterator(beforeStartRange.get()); !backwardsIterator.atEnd(); backwardsIterator.advance()) {
             Vector<UChar, 1024> characters;
             backwardsIterator.prependTextTo(characters);
             buffer.prependContext(characters.data(), characters.size());
             if (!buffer.needsMoreContext())
                 break;
         }
     }
 
@@ skipping 18 matching lines @@
             buffer.reachedBreak();
             goto tryAgain;
         }
     }
 
     return matchLength;
 }
 
 static const TextIteratorBehaviorFlags iteratorFlagsForFindPlainText = TextIteratorEntersTextControls | TextIteratorEntersAuthorShadowRoots;
 
-PassRefPtr<Range> findPlainText(const Range* range, const String& target, FindOptions options)
+PassRefPtrWillBeRawPtr<Range> findPlainText(const Range* range, const String& target, FindOptions options)
 {
     // CharacterIterator requires renderers to be up-to-date
     range->ownerDocument().updateLayout();
 
     // First, find the text.
     size_t matchStart;
     size_t matchLength;
     {
         CharacterIterator findIterator(range, iteratorFlagsForFindPlainText);
         matchLength = findPlainTextInternal(findIterator, target, options, matchStart);
         if (!matchLength)
             return collapsedToBoundary(range, !(options & Backwards));
     }
 
     // Then, find the document position of the start and the end of the text.
     CharacterIterator computeRangeIterator(range, iteratorFlagsForFindPlainText);
     return characterSubrange(computeRangeIterator, matchStart, matchLength);
 }
 
-PassRefPtr<Range> findPlainText(const Position& start, const Position& end, const String& target, FindOptions options)
+PassRefPtrWillBeRawPtr<Range> findPlainText(const Position& start, const Position& end, const String& target, FindOptions options)
 {
     // CharacterIterator requires renderers to be up-to-date.
     if (!start.inDocument())
         return nullptr;
     ASSERT(start.document() == end.document());
     start.document()->updateLayout();
 
     // FIXME: Reduce the code duplication with above (but how?).
     size_t matchStart;
     size_t matchLength;
     {
         CharacterIterator findIterator(start, end, iteratorFlagsForFindPlainText);
         matchLength = findPlainTextInternal(findIterator, target, options, matchStart);
         if (!matchLength) {
             const Position& collapseTo = options & Backwards ? start : end;
             return Range::create(*start.document(), collapseTo, collapseTo);
         }
     }
 
     CharacterIterator computeRangeIterator(start, end, iteratorFlagsForFindPlainText);
     return characterSubrange(computeRangeIterator, matchStart, matchLength);
 }
 
 }