"Implement" #resource tag and various restrictions on library definitions.

dart/frog/leg/tree/nodes.dart

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file

[ahe, 2012/03/24 08:40:14]

Changes in this file only due to updating.

 // 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.
 
 interface Visitor<R> {
   R visitBlock(Block node);
   R visitBreakStatement(BreakStatement node);
   R visitCatchBlock(CatchBlock node);
   R visitClassNode(ClassNode node);
   R visitConditional(Conditional node);
   R visitContinueStatement(ContinueStatement node);
@@ skipping 1461 matching lines @@
 
   final Token beginToken;
   final Token endToken;
 
   ScriptTag(this.tag, this.argument, this.prefixIdentifier, this.prefix,
             this.beginToken, this.endToken);
 
   bool isImport() => tag.source == const SourceString("import");
   bool isSource() => tag.source == const SourceString("source");
   bool isLibrary() => tag.source == const SourceString("library");
+  bool isResource() => tag.source == const SourceString("resource");
 
   ScriptTag asScriptTag() => this;
 
   accept(Visitor visitor) => visitor.visitScriptTag(this);
 
   visitChildren(Visitor visitor) {
     tag.accept(visitor);
     argument.accept(visitor);
     if (prefixIdentifier !== null) prefixIdentifier.accept(visitor);
     if (prefix !== null) prefix.accept(visitor);
@@ skipping 141 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);
 }