WIP (Introduce WTF::NonNullPtr<T>.)

Source/core/dom/SelectorQuery.cpp

 /*
  * Copyright (C) 2011 Apple Inc. All rights reserved.
  *
  * 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 228 matching lines @@
     // we would need to sort the results. For now, just traverse the document in that case.
     ASSERT(rootNode);
     ASSERT(m_selectors.size() == 1);
     ASSERT(m_selectors[0].selector);
 
     bool isRightmostSelector = true;
     bool startFromParent = false;
 
     for (const CSSSelector* selector = m_selectors[0].selector; selector; selector = selector->tagHistory()) {
         if (selector->m_match == CSSSelector::Id && !rootNode->document().containsMultipleElementsWithId(selector->value())) {
-            Element* element = rootNode->treeScope().getElementById(selector->value());
+            Element* element = rootNode->treeScope()->getElementById(selector->value());
             if (element && (isTreeScopeRoot(rootNode) || element->isDescendantOf(rootNode)))
                 rootNode = element;
             else if (!element || isRightmostSelector)
                 rootNode = 0;
             if (isRightmostSelector) {
                 matchTraverseRoots = true;
                 return adoptPtr(new SingleNodeList(rootNode));
             }
             if (startFromParent && rootNode)
                 rootNode = rootNode->parentNode();
@@ skipping 50 matching lines @@
 
     if (!firstSelector->tagHistory()) {
         // Fast path for querySelectorAll('#id'), querySelectorAl('.foo'), and querySelectorAll('div').
         switch (firstSelector->m_match) {
         case CSSSelector::Id:
             {
                 if (rootNode->document().containsMultipleElementsWithId(firstSelector->value()))
                     break;
 
                 // Just the same as getElementById.
-                Element* element = rootNode->treeScope().getElementById(firstSelector->value());
+                Element* element = rootNode->treeScope()->getElementById(firstSelector->value());
                 if (element && (isTreeScopeRoot(rootNode) || element->isDescendantOf(rootNode)))
                     matchedElements.append(element);
                 return;
             }
         case CSSSelector::Class:
             return collectElementsByClassName(rootNode, firstSelector->value(), matchedElements);
         case CSSSelector::Tag:
             return collectElementsByTagName(rootNode, firstSelector->tagQName(), matchedElements);
         default:
             break; // If we need another fast path, add here.
@@ skipping 37 matching lines @@
     // We need to return the matches in document order. To use id lookup while there is possiblity of multiple matches
     // we would need to sort the results. For now, just traverse the document in that case.
     ASSERT(rootNode);
     ASSERT(m_selectors.size() == 1);
     ASSERT(m_selectors[0].selector);
 
     bool matchSingleNode = true;
     bool startFromParent = false;
     for (const CSSSelector* selector = m_selectors[0].selector; selector; selector = selector->tagHistory()) {
         if (selector->m_match == CSSSelector::Id && !rootNode->document().containsMultipleElementsWithId(selector->value())) {
-            Element* element = rootNode->treeScope().getElementById(selector->value());
+            Element* element = rootNode->treeScope()->getElementById(selector->value());
             if (element && (isTreeScopeRoot(rootNode) || element->isDescendantOf(rootNode)))
                 rootNode = element;
             else if (!element || matchSingleNode)
                 rootNode = 0;
             if (matchSingleNode) {
                 matchTraverseRoot = true;
                 return rootNode;
             }
             if (startFromParent && rootNode)
                 rootNode = rootNode->parentNode();
@@ skipping 33 matching lines @@
     ASSERT(selector);
 
     if (!selector->tagHistory()) {
         // Fast path for querySelector('#id'), querySelector('.foo'), and querySelector('div').
         // Many web developers uses querySelector with these simple selectors.
         switch (selector->m_match) {
         case CSSSelector::Id:
             {
                 if (rootNode->document().containsMultipleElementsWithId(selector->value()))
                     break;
-                Element* element = rootNode->treeScope().getElementById(selector->value());
+                Element* element = rootNode->treeScope()->getElementById(selector->value());
                 return element && (isTreeScopeRoot(rootNode) || element->isDescendantOf(rootNode)) ? element : 0;
             }
         case CSSSelector::Class:
             return findElementByClassName(rootNode, selector->value());
         case CSSSelector::Tag:
             return findElementByTagName(rootNode, selector->tagQName());
         default:
             break; // If we need another fast path, add here.
         }
     }
@@ skipping 67 matching lines @@
     m_entries.add(selectors, selectorQuery.release());
     return rawSelectorQuery;
 }
 
 void SelectorQueryCache::invalidate()
 {
     m_entries.clear();
 }
 
 }