work in progress: observable implementation using detailed change records

lib/src/analyzer.dart

 // Copyright (c) 2012, 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.
 
 /**
  * Part of the template compilation that concerns with extracting information
  * from the HTML parse tree.
  */
 library analyzer;
 
@@ skipping 679 matching lines @@
   }
 
   /**
    * Stores a direct reference in [info] to a dart source file that was loaded
    * in a script tag with the 'src' attribute.
    */
   void _attachExtenalScript(LibraryInfo info, Map<Path, FileInfo> files) {
     var path = info.externalFile;
     if (path != null) {
       info.externalCode = files[path];
+      info.externalCode.htmlFile = info;
       info.userCode = info.externalCode.userCode;
     }
   }
 
   /** Adds a component's tag name to the names in scope for [fileInfo]. */
   void _addComponent(FileInfo fileInfo, ComponentInfo componentInfo) {
     var existing = fileInfo.components[componentInfo.tagName];
     if (existing != null) {
       if (existing == componentInfo) {
         // This is the same exact component as the existing one.
@@ skipping 151 matching lines @@
       // text/javascript. Because this might be a common error, we warn about it
       // and force explicit type="text/javascript".
       // TODO(jmesserly): is this a good warning?
       _messages.warning('ignored script tag, possibly missing '
           'type="application/dart" or type="text/javascript":',
           node.sourceSpan, file: _fileInfo.path);
     }
 
     if (scriptType != 'application/dart') return;
 
-    var src = node.attributes["src"];
+    var src = node.attributes['src'];
     if (src != null) {
       if (!src.endsWith('.dart')) {
         _messages.warning('"application/dart" scripts should '
             'use the .dart file extension.',
             node.sourceSpan, file: _fileInfo.path);
       }
 
       if (node.innerHtml.trim() != '') {
         _messages.error('script tag has "src" attribute and also has script '
             'text.', node.sourceSpan, file: _fileInfo.path);
@@ skipping 22 matching lines @@
     assert(node.nodes.length == 1);
     Text text = node.nodes[0];
 
     if (_currentInfo.codeAttached) {
       _tooManyScriptsError(node);
     } else if (_currentInfo == _fileInfo && !_fileInfo.isEntryPoint) {
       _messages.warning('top-level dart code is ignored on '
           ' HTML pages that define components, but are not the entry HTML '
           'file.', node.sourceSpan, file: _fileInfo.path);
     } else {
-      _currentInfo.inlinedCode = text.value;
       _currentInfo.userCode = parseDartCode(text.value,
           _currentInfo.inputPath, messages:_messages);
       if (_currentInfo.userCode.partOf != null) {
         _messages.error('expected a library, not a part.',
             node.sourceSpan, file: _fileInfo.path);
       }
     }
   }
 
   void _tooManyScriptsError(Node node) {
@@ skipping 64 matching lines @@
     if (start == null) moveNext();
     if (start < length) {
       do {
         bindings.add(binding);
         content.add(textContent);
       } while (moveNext());
     }
     content.add(textContent);
   }
 }