Support for specifying an output directory (issue #106)

lib/web_component.dart

 // Copyright (c) 2011, 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.
 
 // TODO(jmesserly): Remove this file when our version >= 0.2, and merge
 // this with "web_components.dart". Leaving for now to keep 0.1.x compat.
 /** Declares the [WebComponent] base class (eventually: mixin). */
 library web_component;
 
 import 'dart:html';
@@ skipping 11 matching lines @@
   final Element _element;
 
   static bool _hasShadowRoot = true;
 
   /**
    * Default constructor for web components. This contructor is only provided
    * for tooling, and is *not* currently supported.
    * Use [WebComponent.forElement] instead.
    */
   WebComponent() : _element = null {
-    throw new UnsupportedOperationException(
+    throw new UnsupportedError(
         'Directly constructing web components is not currently supported. '
         'You need to use the WebComponent.forElement constructor to associate '
         'a component with its DOM element. If you run "bin/dwc.dart" on your '
         'component, the compiler will create the approriate construction '
         'logic.');
   }
 
   /**
    * Temporary constructor until components extend [Element]. Attaches this
    * component to the provided [element]. The element must not already have a
@@ skipping 295 matching lines @@
       _element.$dom_replaceChild(newChild, oldChild);
 
   get xtag => _element.xtag;
 
   set xtag(value) { _element.xtag = value; }
 
   void addText(String text) => _element.addText(text);
 
   void addHTML(String html) => _element.addHTML(html);
 }