Internal libraries supported.

sdk/lib/_internal/compiler/implementation/compiler.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.
 
 part of dart2js;
 
 /**
  * If true, print a warning for each method that was resolved, but not
  * compiled.
  */
@@ skipping 950 matching lines @@
     Element element = instruction.sourceElement;
     if (element == null) element = currentElement;
     var position = instruction.sourcePosition;
     if (position == null) return spanFromElement(element);
     Token token = position.token;
     if (token == null) return spanFromElement(element);
     Uri uri = element.getCompilationUnit().script.uri;
     return spanFromTokens(token, token, uri);
   }
 
+  Uri resolveScriptUri(Uri importingUri, Uri uri, [Node node]) {

[ahe, 2013/01/18 11:03:10]

I think this should be documented here, not in the subclass.

[Johnni Winther, 2013/01/21 09:27:54]

Done.

+    unimplemented('Compiler.resolveScriptUri');
+  }
+
   Script readScript(Uri uri, [Node node]) {
     unimplemented('Compiler.readScript');
   }
 
   String get legDirectory {
     unimplemented('Compiler.legDirectory');
   }
 
   // TODO(karlklose): split into findHelperFunction and findHelperClass and
   // add a check that the element has the expected kind.
@@ skipping 122 matching lines @@
   // TODO(johnniwinther): Use [spannable] and [message] to provide better
   // information on assertion errors.
   if (condition is Function){
     condition = condition();
   }
   if (spannable == null || !condition) {
     throw new SpannableAssertionFailure(spannable, message);
   }
   return true;
 }