Accept more labels per switch case.

lib/compiler/implementation/resolver.dart

Index: lib/compiler/implementation/resolver.dart
diff --git a/lib/compiler/implementation/resolver.dart b/lib/compiler/implementation/resolver.dart
index 338148d6de278863f03f569c4f2868a603ce58f1..bc2b393dcee39b02cf21dd4ddc459982c669bff4 100644
--- a/lib/compiler/implementation/resolver.dart
+++ b/lib/compiler/implementation/resolver.dart
@@ -1211,8 +1211,13 @@ class ResolverVisitor extends CommonResolverVisitor<Element> {
       }
       target = label.target;
       if (!target.statement.isValidContinueTarget()) {
+        print(target);

[karlklose, 2012/05/11 09:29:31]

Remove debug code.

[Lasse Reichstein Nielsen, 2012/05/11 14:17:09]

Done.

         error(node.target, MessageKind.INVALID_CONTINUE, [labelName]);
       }
+      // TODO(lrn): Handle continues to switch cases.
+      if (target.statement is SwitchCase) {
+        unimplemented(node, "continue to switch case");
+      }
       label.setContinueTarget();
       mapping[node.target] = label;
     }
@@ -1237,6 +1242,10 @@ class ResolverVisitor extends CommonResolverVisitor<Element> {
     }
   }
 
+  visitLabel(Label node) {
+

[karlklose, 2012/05/11 09:29:31]

Remove empty line.

[Lasse Reichstein Nielsen, 2012/05/11 14:17:09]

Done.

+  }
+
   visitLabeledStatement(LabeledStatement node) {
     String labelName = node.label.slowToString();
     LabelElement existingElement = statementScope.lookupLabel(labelName);
@@ -1283,8 +1292,7 @@ class ResolverVisitor extends CommonResolverVisitor<Element> {
     Link<Node> cases = node.cases.nodes;
     while (!cases.isEmpty()) {
       SwitchCase switchCase = cases.head;
-      if (switchCase.label !== null) {
-        Label label = switchCase.label;
+      for (Label label in switchCase.labels) {
         String labelName = label.slowToString();
 
         LabelElement existingElement = continueLabels[labelName];
@@ -1323,7 +1331,7 @@ class ResolverVisitor extends CommonResolverVisitor<Element> {
     node.cases.accept(this);
     statementScope.exitSwitch();
 
-    // Clean-up unused labels
+    // Clean-up unused labels.
     continueLabels.forEach((String key, LabelElement label) {
       TargetElement targetElement = label.target;
       SwitchCase switchCase = targetElement.statement;
@@ -1335,11 +1343,15 @@ class ResolverVisitor extends CommonResolverVisitor<Element> {
   }
 
   visitSwitchCase(SwitchCase node) {
-    // The label was handled in [visitSwitchStatement(SwitchStatement)].
-    node.expressions.accept(this);
+    // The labels were handled in [visitSwitchStatement(SwitchStatement)].
+    node.cases.accept(this);
     visitIn(node.statements, new BlockScope(context));
   }
 
+  visitCaseMatch(CaseMatch node) {
+    visit(node.expression);
+  }
+
   visitTryStatement(TryStatement node) {
     visit(node.tryBlock);
     if (node.catchBlocks.isEmpty() && node.finallyBlock == null) {