Create the local MirrorSystem with internal code.

runtime/lib/mirrors_impl.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.
 
 // VM-specific implementation of the dart:mirrors library.
 
 // These values are allowed to be passed directly over the wire.
 bool _isSimpleValue(var value) {
   return (value == null || value is num || value is String || value is bool);
 }
@@ skipping 50 matching lines @@
       buf.write(', ');
     }
   }
   if (found_optional_param) {
     buf.write(']');
   }
   buf.write(')');
   return buf.toString();
 }
 
-Map<Uri, LibraryMirror> _createLibrariesMap(Map<String, LibraryMirror> map) {
-    var result = new Map<Uri, LibraryMirror>();
-    map.forEach((String url, LibraryMirror mirror) {
-      result[Uri.parse(url)] = mirror;
-    });
-    return result;
+Map<Uri, LibraryMirror> _createLibrariesMap(List<LibraryMirror> list) {
+  var map = new Map<Uri, LibraryMirror>();
+  list.forEach((LibraryMirror mirror) => map[mirror.uri] = mirror);
+  return map;
 }
 
 List _metadata(reflectee)
   native 'DeclarationMirror_metadata';
 
 // This will verify the argument types, unwrap them, and ensure we have a fixed
 // array.
 List _unwarpAsyncPositionals(wrappedArgs){
   List unwrappedArgs = new List(wrappedArgs.length);
   for(int i = 0; i < wrappedArgs.length; i++){
     var wrappedArg = wrappedArgs[i];
     if(_isSimpleValue(wrappedArg)) {
       unwrappedArgs[i] = wrappedArg;
     } else if(wrappedArg is InstanceMirror) {
       unwrappedArgs[i] = wrappedArg._reflectee;
     } else { 
       throw "positional argument $i ($arg) was not a simple value or InstanceMirror";
     }
   }
   return unwrappedArgs;
 }
 
 class _LocalMirrorSystemImpl extends MirrorSystem {
   // Change parameter back to "this.libraries" when native code is changed.
-  _LocalMirrorSystemImpl(Map<String, LibraryMirror> libraries, this.isolate)
+  _LocalMirrorSystemImpl(List<LibraryMirror> libraries, this.isolate)
       : this.libraries = _createLibrariesMap(libraries),
         _functionTypes = new Map<String, FunctionTypeMirror>();
 
   final Map<Uri, LibraryMirror> libraries;
   final IsolateMirror isolate;
 
   TypeMirror _dynamicType = null;
 
   TypeMirror get dynamicType {
     if (_dynamicType == null) {
@@ skipping 35 matching lines @@
     throw new UnimplementedError('Mirror.hashCode is not implemented');
   }
 
   // Local mirrors always return the same MirrorSystem.  This field
   // is more interesting once we implement remote mirrors.
   MirrorSystem get mirrors => _Mirrors.currentMirrorSystem();
 }
 
 class _LocalIsolateMirrorImpl extends _LocalMirrorImpl
     implements IsolateMirror {
-  _LocalIsolateMirrorImpl(this.debugName, this._rootLibrary) {}
+  _LocalIsolateMirrorImpl(this.debugName, this.rootLibrary) {}
 
   final String debugName;
   final bool isCurrent = true;
-
-  var _rootLibrary;
-  LibraryMirror get rootLibrary {
-    if (_rootLibrary is _LazyLibraryMirror) {
-      _rootLibrary = _rootLibrary.resolve(mirrors);
-    }
-    return _rootLibrary;
-  }
+  final LibraryMirror rootLibrary;
 
   String toString() => "IsolateMirror on '$debugName'";
 }
 
 abstract class _LocalObjectMirrorImpl extends _LocalMirrorImpl
     implements ObjectMirror {
   _LocalObjectMirrorImpl(this._reflectee);
 
   final _reflectee; // May be a MirrorReference or an ordinary object.
 
@@ skipping 1054 matching lines @@
   static Expando<ClassMirror> _classMirrorCache = new Expando("ClassMirror");
   static ClassMirror reflectClass(Type key) {
     var classMirror = _classMirrorCache[key];
     if (classMirror == null) {
       classMirror = makeLocalClassMirror(key);
       _classMirrorCache[key] = classMirror;
     }
     return classMirror;
   }
 }