Initial stream support

lib/syntax.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.
 
 library fancy_syntax;
 
+import 'dart:async';
 import 'dart:html';
 import 'dart:collection';
 import 'package:mdv_observe/mdv_observe.dart';
 
+import 'async.dart';
 import 'eval.dart';
 import 'expression.dart';
 import 'parser.dart';
 import 'visitor.dart';
 
 class FancySyntax extends CustomBindingSyntax {
 
   final Map<String, Object> globals;
 
   FancySyntax({Map<String, Object> globals})
       : globals = (globals == null) ? new Map<String, Object>() : globals;
 
   _Binding getBinding(model, String path, name, node) {
     if (path != null) {
-      if (path.isEmpty) {
-        // avoid creating an unneccesary scope for the top-level template
-        return null;
-      } else if (model is! Scope) {
+      var expr = new Parser(path).parse();
+      if (model is! Scope) {
         model = new Scope(model: model, variables: globals);
       }
-      var expr = new Parser(path).parse();
       return new _Binding(expr, model);
     } else {
       return null;
     }
   }
 
   getInstanceModel(Element template, model) {
     if (model is! Scope) {
       var _scope = new Scope(model: model, variables: globals);
       return _scope;
@@ skipping 45 matching lines @@
 
   getValueWorkaround(key) {
     if (key == _VALUE) return value;
   }
 
   setValueWorkaround(key, v) {
     if (key == _VALUE) value = v;
   }
 
 }