Optimize hasTagName when called on an HTMLElement / SVGElement

Source/core/dom/Element.h

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2001 Peter Kelly (pmk@post.com)
  *           (C) 2001 Dirk Mueller (mueller@kde.org)
- * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2013 Apple Inc. All rights reserved.
+ * Copyright (C) 2003-2011, 2013, 2014 Apple Inc. All rights reserved.
  *
  * 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.
@@ skipping 208 matching lines @@
 
     PassRefPtrWillBeRawPtr<Attr> attrIfExists(const QualifiedName&);
     PassRefPtrWillBeRawPtr<Attr> ensureAttr(const QualifiedName&);
 
     WillBeHeapVector<RefPtrWillBeMember<Attr> >* attrNodeList();
 
     CSSStyleDeclaration* style();
 
     const QualifiedName& tagQName() const { return m_tagName; }
     String tagName() const { return nodeName(); }
+
     bool hasTagName(const QualifiedName& tagName) const { return m_tagName.matches(tagName); }
+    bool hasTagName(const HTMLQualifiedName& tagName) const { return ContainerNode::hasTagName(tagName); }
+    bool hasTagName(const SVGQualifiedName& tagName) const { return ContainerNode::hasTagName(tagName); }
 
     // Should be called only by Document::createElementNS to fix up m_tagName immediately after construction.
     void setTagNameForCreateElementNS(const QualifiedName&);
 
     // A fast function for checking the local name against another atomic string.
     bool hasLocalName(const AtomicString& other) const { return m_tagName.localName() == other; }
-    bool hasLocalName(const QualifiedName& other) const { return m_tagName.localName() == other.localName(); }
 
     virtual const AtomicString& localName() const OVERRIDE FINAL { return m_tagName.localName(); }
     const AtomicString& prefix() const { return m_tagName.prefix(); }
     virtual const AtomicString& namespaceURI() const OVERRIDE FINAL { return m_tagName.namespaceURI(); }
 
     const AtomicString& locateNamespacePrefix(const AtomicString& namespaceURI) const;
 
     virtual KURL baseURI() const OVERRIDE FINAL;
 
     virtual String nodeName() const OVERRIDE;
@@ skipping 393 matching lines @@
     void detachAllAttrNodesFromElement();
     void detachAttrNodeFromElementWithValue(Attr*, const AtomicString& value);
     void detachAttrNodeAtIndex(Attr*, size_t index);
 
     bool isJavaScriptURLAttribute(const Attribute&) const;
 
     RefPtrWillBeMember<ElementData> m_elementData;
 };
 
 DEFINE_NODE_TYPE_CASTS(Element, isElementNode());
-template <typename T> bool isElementOfType(const Element&);
-template <typename T> inline bool isElementOfType(const Node& node) { return node.isElementNode() && isElementOfType<const T>(toElement(node)); }
+template <typename T> bool isElementOfType(const Node&);
+template <> inline bool isElementOfType<const Element>(const Node& node) { return node.isElementNode(); }
+template <typename T> inline bool isElementOfType(const Element& element) { return isElementOfType<T>(static_cast<const Node&>(element)); }
 template <> inline bool isElementOfType<const Element>(const Element&) { return true; }
 
 // Type casting.
 template<typename T> inline T& toElement(Node& node)
 {
     ASSERT_WITH_SECURITY_IMPLICATION(isElementOfType<const T>(node));
     return static_cast<T&>(node);
 }
 template<typename T> inline T* toElement(Node* node)
 {
@@ skipping 183 matching lines @@
 }
 
 inline bool isShadowHost(const Element* element)
 {
     return element && element->shadow();
 }
 
 // These macros do the same as their NODE equivalents but additionally provide a template specialization
 // for isElementOfType<>() so that the Traversal<> API works for these Element types.
 #define DEFINE_ELEMENT_TYPE_CASTS(thisType, predicate) \
-    template <> inline bool isElementOfType<const thisType>(const Element& element) { return element.predicate; } \
+    template <> inline bool isElementOfType<const thisType>(const Node& node) { return node.predicate; } \
     DEFINE_NODE_TYPE_CASTS(thisType, predicate)
 
 #define DEFINE_ELEMENT_TYPE_CASTS_WITH_FUNCTION(thisType) \
-    template <> inline bool isElementOfType<const thisType>(const Element& element) { return is##thisType(element); } \
+    template <> inline bool isElementOfType<const thisType>(const Node& node) { return is##thisType(node); } \
     DEFINE_NODE_TYPE_CASTS_WITH_FUNCTION(thisType)
 
 #define DECLARE_ELEMENT_FACTORY_WITH_TAGNAME(T) \
     static PassRefPtrWillBeRawPtr<T> create(const QualifiedName&, Document&)
 #define DEFINE_ELEMENT_FACTORY_WITH_TAGNAME(T) \
     PassRefPtrWillBeRawPtr<T> T::create(const QualifiedName& tagName, Document& document) \
     { \
         return adoptRefWillBeNoop(new T(tagName, document)); \
     }
 
 } // namespace
 
 #endif