First stab at parsing redirecting constructors.

lib/compiler/implementation/tree/nodes.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.
 
 abstract class Visitor<R> {
   R visitBlock(Block node);
   R visitBreakStatement(BreakStatement node);
   R visitCascade(Cascade node);
   R visitCascadeReceiver(CascadeReceiver node);
   R visitCaseMatch(CaseMatch node);
@@ skipping 873 matching lines @@
   final Expression expression;
   final Token beginToken;
   final Token endToken;
 
   Return(this.beginToken, this.endToken, this.expression);
 
   Return asReturn() => this;
 
   bool get hasExpression => expression !== null;
 
+  String get firstTokenStringValue => beginToken.stringValue;

[ahe, 2012/10/05 08:23:20]

Where is this used?

[Lasse Reichstein Nielsen, 2012/10/09 09:46:54]

In unparser, validator and resolver. Looking at the beginToken seems to happen a
lot.

Would it be better to have methods on Return like "isFunctionBody" and
"isRedirectingFactoryBody" that does the check?

+
   accept(Visitor visitor) => visitor.visitReturn(this);
 
   visitChildren(Visitor visitor) {
     if (expression !== null) expression.accept(visitor);
   }
 
   Token getBeginToken() => beginToken;
 
   Token getEndToken() {
     if (endToken === null) return expression.getEndToken();
@@ skipping 989 matching lines @@
  * argument).
  *
  * TODO(ahe): This method is controversial, the team needs to discuss
  * if top-level methods are acceptable and what naming conventions to
  * use.
  */
 initializerDo(Node node, f(Node node)) {
   SendSet send = node.asSendSet();
   if (send !== null) return f(send.arguments.head);
 }