Implement super calls.

frog/leg/resolver.dart

Index: frog/leg/resolver.dart
diff --git a/frog/leg/resolver.dart b/frog/leg/resolver.dart
index 0719b23532b118b0a745d247f5e136ca5e7ec904..ab23b93c0303d8653958412a80d5a19e8e9c811e 100644
--- a/frog/leg/resolver.dart
+++ b/frog/leg/resolver.dart
@@ -172,6 +172,9 @@ class ResolverVisitor extends AbstractVisitor/*<Element>*/ {
     if (node.isThis()) {
       if (!inInstanceContext) error(node, MessageKind.NO_THIS_IN_STATIC);
       return null;
+    } else if (node.isSuper()) {
+      if (!inInstanceContext) error(node, MessageKind.NO_SUPER_IN_STATIC);
+      return null;
     } else {
       Element element = lookup(node, node.source);
       if (element == null) {
@@ -326,12 +329,24 @@ class FullResolverVisitor extends ResolverVisitor {
       return null;
     }
 
-    SourceString name = selector.source;
+    SourceString name = selector.asIdentifier().source;
     // No need to assign an element for a logical operation.
     if (isLogicalOperator(selector)) return null;
 
     Element target = null;
-    if (node.isOperator) {
+    if (node.receiver !== null
+        && node.receiver.asIdentifier() !== null
+        && node.receiver.asIdentifier().isSuper()) {
+      ClassElement thisElement = enclosingElement.enclosingElement;

[ngeoffray, 2012/01/10 16:52:50]

I think I'd prefer having a classElement field in ResolverVisitor. It looks like
this does not scale with closures.

[karlklose, 2012/01/11 12:45:17]

Done, added field currentClass.

+      ClassElement superElement = thisElement.superClass;
+      if (superElement === null) {

[ngeoffray, 2012/01/10 16:52:50]

Should we attach the objectElement to the superElement in the Element instead?

[karlklose, 2012/01/11 12:45:17]

Done.

+        superElement = compiler.universe.find(compiler.types.OBJECT);
+      }
+      target = superElement.lookupLocalMember(name);
+      if (target == null) {
+        error(node, MessageKind.METHOD_NOT_FOUND, [superElement.name, name]);
+      }
+    } else if (node.isOperator) {
       return null;
     } else if (node.receiver === null) {
       target = lookup(node, name);
@@ -344,9 +359,9 @@ class FullResolverVisitor extends ResolverVisitor {
       ClassElement receiverClass = receiver;
       target = receiverClass.resolve(compiler).lookupLocalMember(name);
       if (target == null) {
-        error(node, MessageKind.METHOD_NOT_FOUND, [receiver, name]);
+        error(node, MessageKind.METHOD_NOT_FOUND, [receiver.name, name]);
       } else if (target.isInstanceMember()) {
-        error(node, MessageKind.MEMBER_NOT_STATIC, [receiver, name]);
+        error(node, MessageKind.MEMBER_NOT_STATIC, [receiver.name, name]);
       }
     }
     return target;