Switch-implementation.

frog/leg/tree/unparser.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.
 
 class Unparser implements Visitor {
   StringBuffer sb;
   final bool printDebugInfo;
 
   Unparser([this.printDebugInfo = false]);
 
@@ skipping 315 matching lines @@
     visit(node.parenthesizedExpression);
     sb.add(' ');
     visit(node.cases);
   }
 
   visitSwitchCase(SwitchCase node) {
     if (node.label !== null) {
       visit(node.label);
       sb.add(': ');
     }
-    node.caseKeyword.value.printOn(sb);
-    sb.add(' ');
-    visit(node.expression);
-    sb.add(': ');
+    for (Expression expression in node.expressions) {
+      sb.add('case ');
+      visit(expression);
+      sb.add(': ');
+    }
     visit(node.statements);
   }
 
-  visitDefaultCase(DefaultCase node) {

[floitsch, 2012/03/09 16:52:15]

Where is the default: case now handled?

[Lasse Reichstein Nielsen, 2012/03/12 13:05:23]

A switch case now contains more than one expression and an optional default flag
and some statements, instead of one case being either one expression or default
and possibly no statements.

-    if (node.label !== null) {
-      visit(node.label);
-      sb.add(': ');
-    }
-    node.defaultKeyword.value.printOn(sb);
-    sb.add(': ');
-    visit(node.statements);
-  }
-
   visitScriptTag(ScriptTag node) {
     add(node.beginToken.value);
     visit(node.tag);
     sb.add('(');
     visit(node.argument);
     if (node.prefixIdentifier !== null) {
       visit(node.prefixIdentifier);
       sb.add(': ');
       visit(node.prefix);
     }
@@ skipping 30 matching lines @@
       sb.add(' ');
     }
     visit(node.name);
     if (node.typeParameters !== null) {
       visit(node.typeParameters);
     }
     visit(node.formals);
     add(node.endToken.value);
   }
 }