Partially implement LibraryMirror.topLevelMembers.

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.
 
 import "dart:collection";
 
 final emptyList = new UnmodifiableListView([]);
 final emptyMap = new _UnmodifiableMapView({});
@@ skipping 1057 matching lines @@
     throw new UnimplementedError('LibraryMirror.location is not implemented');
   }
 
   Map<Symbol, DeclarationMirror> _declarations;
   Map<Symbol, DeclarationMirror> get declarations {
     if (_declarations != null) return _declarations;
     return _declarations =
         new _UnmodifiableMapView<Symbol, DeclarationMirror>(_members);
   }
 
+
+  var _cachedTopLevelMembers;
   Map<Symbol, MethodMirror> get topLevelMembers {
-    throw new UnimplementedError(
-        'LibraryMirror.topLevelMembers is not implemented');
+    if (_cachedTopLevelMembers != null) return _cachedTopLevelMembers;
+    var result = new Map<Symbol, MethodMirror>();
+    declarations.values.forEach((decl) {
+      if (decl is MethodMirror && !decl.isAbstract) {
+        result[decl.simpleName] = decl;
+      }
+      if (decl is VariableMirror) {
+        var getterName = decl.simpleName;
+        result[getterName] =
+            new _SyntheticAccessor(this, getterName, true, true, true, decl);
+        if (!decl.isFinal) {
+          var setterName = _asSetter(decl.simpleName, this);
+          result[setterName] = new _SyntheticAccessor(
+              this, setterName, false, true, true, decl);
+        }
+      }
+      // if (decl is TypeMirror) {
+      //  var getterName = decl.simpleName;
+      //  result[getterName] = new _SyntheticTypeGetter(this, getterName, decl);
+      // }
+    });
+    return _cachedTopLevelMembers = result;
   }
 
+
   Map<Symbol, Mirror> _cachedMembers;
   Map<Symbol, Mirror> get _members {
     if (_cachedMembers == null) {
       _cachedMembers = _makeMemberMap(_computeMembers(_reflectee));
     }
     return _cachedMembers;
   }
 
   Map<Symbol, MethodMirror> _cachedFunctions;
   Map<Symbol, MethodMirror> get _functions {
@@ skipping 373 matching lines @@
     if (typeMirror == null) {
       typeMirror = makeLocalTypeMirror(key);
       _instanitationCache[key] = typeMirror;
       if (typeMirror is ClassMirror && !typeMirror._isGeneric) {
         _declarationCache[key] = typeMirror;
       }
     }
     return typeMirror;
   }
 }