port Node.bind to bd0a0591920da9091b326627a46a104a92c7efe7

pkg/template_binding/lib/template_binding.dart

 // Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 /**
  * This library provides access to the Polymer project's
  * [Data Binding](http://www.polymer-project.org/docs/polymer/databinding.html)
  * Find more information at the
  * [Polymer.dart homepage](https://www.dartlang.org/polymer-dart/).
  *
@@ skipping 86 matching lines @@
  *         // otherwise, fall back to superclass
  *         return nodeBindFallback(this).bind(name, model, path);
  *       }
  *       ...
  *     }
  */
 NodeBindExtension nodeBindFallback(Node node) {
   var extension = _expando[node];
   if (extension != null) return extension;
 
+  // TODO(jmesserly): switch on localName?
   if (node is InputElement) {
     extension = new _InputElementExtension(node);
   } else if (node is SelectElement) {
     extension = new _SelectElementExtension(node);
   } else if (node is TextAreaElement) {
     extension = new _TextAreaElementExtension(node);
   } else if (node is Element) {
     if (isSemanticTemplate(node)) {
       extension = new TemplateBindExtension._(node);
     } else {
@@ skipping 45 matching lines @@
 
 // The expando for storing our MDV extensions.
 //
 // In general, we need state associated with the nodes. Rather than having a
 // bunch of individual expandos, we keep one per node.
 //
 // Aside from the potentially helping performance, it also keeps things simpler
 // if we decide to integrate MDV into the DOM later, and means less code needs
 // to worry about expandos.
 final Expando _expando = new Expando('template_binding');