Access to "this" in super reads in a closure.

dart/lib/compiler/implementation/ssa/codegen.dart

Index: dart/lib/compiler/implementation/ssa/codegen.dart
diff --git a/dart/lib/compiler/implementation/ssa/codegen.dart b/dart/lib/compiler/implementation/ssa/codegen.dart
index bce5e56d4d1786f9fca48121b94504ef390e96cf..ca4d8bb4d4357f3ba711686cd2cb120a240e6cbd 100644
--- a/dart/lib/compiler/implementation/ssa/codegen.dart
+++ b/dart/lib/compiler/implementation/ssa/codegen.dart
@@ -1561,7 +1561,8 @@ class SsaCodeGenerator implements HVisitor, HBlockInformationVisitor {
       assert(superMethod.kind == ElementKind.GETTER);
       String methodName =
           compiler.namer.getterName(currentLibrary, superMethod.name);
-      buffer.add('$className.prototype.$methodName.call(this)');
+      buffer.add('$className.prototype.$methodName.call');
+      visitArguments(node.inputs);

[ngeoffray, 2012/05/31 08:59:23]

Don't we get just only one input (this) ?

[ahe, 2012/05/31 09:08:36]

The input should be two things, the element and "this". "this" may not be what
JS think it is in a closure.

I'm not sure I understand your question. 

[ngeoffray, 2012/05/31 09:37:07]

Very good point. And doing the mistake looks quite easy. Do we have the same
problem line 1559?

     }
     endExpression(JSPrecedence.CALL_PRECEDENCE);
     world.registerStaticUse(superMethod);