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 571 matching lines @@
 
   void importIsolateHelperLibrary(LibraryElement library) {
     if (isolateHelperLibrary != null) {
       libraryLoader.importLibrary(library, isolateHelperLibrary, null);
     }
   }
 
   // TODO(karlklose,floitsch): move this to the javascript backend.
   /** Enable the 'JS' helper for a library if needed. */
   void maybeEnableJSHelper(LibraryElement library) {
-    String libraryName = library.uri.toString();
+    String libraryName = library.canonicalUri.toString();
     bool nativeTest = library.entryCompilationUnit.script.name.contains(
         'dart/tests/compiler/dart2js_native');
     if (nativeTest
         || libraryName == 'dart:async'
         || libraryName == 'dart:chrome'
         || libraryName == 'dart:mirrors'
         || libraryName == 'dart:math'
         || libraryName == 'dart:html'
         || libraryName == 'dart:html_common'
         || libraryName == 'dart:indexed_db'
@@ skipping 13 matching lines @@
           foreignLibrary.findLocal(const SourceString('JS')), this);
       Element jsIndexingBehaviorInterface =
           findHelper(const SourceString('JavaScriptIndexingBehavior'));
       if (jsIndexingBehaviorInterface != null) {
         library.addToScope(jsIndexingBehaviorInterface, this);
       }
     }
   }
 
   void maybeEnableIsolateHelper(LibraryElement library) {
-    String libraryName = library.uri.toString();
+    String libraryName = library.canonicalUri.toString();
     if (libraryName == 'dart:isolate'
         || libraryName == 'dart:html'
         // TODO(floitsch): create a separate async-helper library instead of
         // importing the isolate-library just for TimerImpl.
         || libraryName == 'dart:async') {
       importIsolateHelperLibrary(library);
     }
   }
 
   void runCompiler(Uri uri) {
@@ skipping 300 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);
   }
 
-  Script readScript(Uri uri, [Node node]) {
+  /**
+   * Resolves the [absoluteUri] into a readable URI.
+   *
+   * The [importingLibrary] holds the library importing [absoluteUri] or
+   * [:null:] if [absoluteUri] is loaded as the main library. The
+   * [importingLibrary] is used to grant access to internal libraries from
+   * platform libraries and patch libraries.
+   *
+   * This method is responsible for reporting errors if the [absoluteUri] is
+   * not accessible from [importingLibrary] and returns [:null:] in this case.

[ahe, 2013/01/24 10:00:57]

Depending on how you respond to my comment in apiimpl line 174, this might need
to be tweaked.

[Johnni Winther, 2013/01/24 13:04:59]

Done.

+   *
+   * See [LibraryLoader] for terminology on URIs.
+   */
+  Uri resolveAbsoluteUri(LibraryElement importingLibrary,
+                         Uri absoluteUri, Node node) {
+    unimplemented('Compiler.resolveAbsoluteUri');
+  }
+
+  /**
+   * Reads the script specified by the [readableUri].
+   *
+   * See [LibraryLoader] for terminology on URIs.
+   */
+  Script readScript(Uri readableUri, [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.
   Element findHelper(SourceString name)
@@ skipping 121 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;
 }