Remove Element#attributes.

sky/engine/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 635 matching lines @@
         if (deep) {
             if (!importContainerNodeChildren(oldElement, newElement, exceptionState))
                 return nullptr;
             if (isHTMLTemplateElement(*oldElement)
                 && !importContainerNodeChildren(toHTMLTemplateElement(oldElement)->content(), toHTMLTemplateElement(newElement)->content(), exceptionState))
                 return nullptr;
         }
 
         return newElement.release();
     }
-    case ATTRIBUTE_NODE:
-        exceptionState.throwDOMException(NotSupportedError, "Cannot clone an Attr.");
-        return nullptr;
     case DOCUMENT_FRAGMENT_NODE: {
         if (importedNode->isShadowRoot()) {
             // ShadowRoot nodes should not be explicitly importable.
             // Either they are imported along with their host node, or created implicitly.
             exceptionState.throwDOMException(NotSupportedError, "The node provided is a shadow root, which may not be imported.");
             return nullptr;
         }
         DocumentFragment* oldFragment = toDocumentFragment(importedNode);
         RefPtr<DocumentFragment> newFragment = createDocumentFragment();
         if (deep && !importContainerNodeChildren(oldFragment, newFragment, exceptionState))
@@ skipping 11 matching lines @@
 }
 
 PassRefPtr<Node> Document::adoptNode(PassRefPtr<Node> source, ExceptionState& exceptionState)
 {
     EventQueueScope scope;
 
     switch (source->nodeType()) {
     case DOCUMENT_NODE:
         exceptionState.throwDOMException(NotSupportedError, "The node provided is of type '" + source->nodeName() + "', which may not be adopted.");
         return nullptr;
-    case ATTRIBUTE_NODE: {
-        exceptionState.throwDOMException(NotSupportedError, "Cannot adopt Attr.");
-        break;
-    }
     default:
         if (source->isShadowRoot()) {
             // ShadowRoot cannot disconnect itself from the host node.
             exceptionState.throwDOMException(HierarchyRequestError, "The node provided is a shadow root, which may not be adopted.");
             return nullptr;
         }
 
         if (source->parentNode()) {
             source->parentNode()->removeChild(source.get(), exceptionState);
             if (exceptionState.hadException())
@@ skipping 1110 matching lines @@
     if (!request.readOnly())
         updateHoverActiveState(request, result.innerElement(), &event);
 
     return MouseEventWithHitTestResults(event, result);
 }
 
 // DOM Section 1.1.1
 bool Document::childTypeAllowed(NodeType type) const
 {
     switch (type) {
-    case ATTRIBUTE_NODE:
     case DOCUMENT_FRAGMENT_NODE:
     case DOCUMENT_NODE:
     case TEXT_NODE:
         return false;
     case ELEMENT_NODE:
         // Documents may contain no more than one of each of these.
         // (One Element and one DocumentType.)
         for (Node* c = firstChild(); c; c = c->nextSibling())
             if (c->nodeType() == type)
                 return false;
@@ skipping 21 matching lines @@
             break;
         default:
             break;
         }
     }
 
     // Then, see how many doctypes and elements might be added by the new child.
     if (newChild.isDocumentFragment()) {
         for (Node* c = toDocumentFragment(newChild).firstChild(); c; c = c->nextSibling()) {
             switch (c->nodeType()) {
-            case ATTRIBUTE_NODE:
             case DOCUMENT_FRAGMENT_NODE:
             case DOCUMENT_NODE:
             case TEXT_NODE:
                 return false;
             case ELEMENT_NODE:
                 numElements++;
                 break;
             }
         }
     } else {
         switch (newChild.nodeType()) {
-        case ATTRIBUTE_NODE:
         case DOCUMENT_FRAGMENT_NODE:
         case DOCUMENT_NODE:
         case TEXT_NODE:
             return false;
         case ELEMENT_NODE:
             numElements++;
             break;
         }
     }
 
@@ skipping 1240 matching lines @@
 using namespace blink;
 void showLiveDocumentInstances()
 {
     WeakDocumentSet& set = liveDocumentSet();
     fprintf(stderr, "There are %u documents currently alive:\n", set.size());
     for (WeakDocumentSet::const_iterator it = set.begin(); it != set.end(); ++it) {
         fprintf(stderr, "- Document %p URL: %s\n", *it, (*it)->url().string().utf8().data());
     }
 }
 #endif