Mock up all remaining core library implementation classes.

dart/frog/leg/ssa/builder.dart

 // Copyright (c) 2012, 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 Interceptors {
   Compiler compiler;
   Interceptors(Compiler this.compiler);
 
   SourceString mapOperatorToMethodName(Operator op) {
     String name = op.source.stringValue;
@@ skipping 302 matching lines @@
 
   /**
    * Returns an [HInstruction] for the given element. If the element is
    * boxed or stored in a closure then the method generates code to retrieve
    * the value.
    */
   HInstruction readLocal(Element element) {
     if (isAccessedDirectly(element)) {
       if (directLocals[element] == null) {
         builder.compiler.internalError(
-            "Could not find value", node: element.parseNode(builder.compiler));
+            "Could not find value", element: element);

[ngeoffray, 2012/02/17 10:03:50]

This is exactly what we talked about with Florian: not cancel on elements in the
backend. I believe it's on his TODO list to clean up error reporting in the
backend.

[floitsch, 2012/02/17 10:40:40]

While you are it: with "Cannot find value" it fits on one line (I think).

[ahe, 2012/02/17 16:26:46]

Done.

       }
       return directLocals[element];
     } else if (isStoredInClosureField(element)) {
       Element redirect = redirectionMapping[element];
       // We must not use the [LocalsHandler.readThis()] since that could
       // point to a captured this which would be stored in a closure-field
       // itself.
       HInstruction receiver = new HThis();
       builder.add(receiver);
       HInstruction fieldGet = new HFieldGet(redirect, receiver);
@@ skipping 1736 matching lines @@
   }
 
   visitCatchBlock(CatchBlock node) {
     visit(node.block);
   }
 
   visitTypedef(Typedef node) {
     compiler.unimplemented('SsaBuilder.visitTypedef', node: node);
   }
 }