Partial implementation of the 'setAnalysisRoots' API.

pkg/analysis_server/lib/src/resource.dart

 // Copyright (c) 2014, 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.
 
 library resource;
 
 import 'dart:io' as io;
 
 import 'package:analyzer/src/generated/engine.dart' show TimestampedData;
 import 'package:analyzer/src/generated/java_io.dart';
@@ skipping 140 matching lines @@
  * An in-memory implementation of [Source].
  */
 class _MemoryFileSource implements Source {
   final _MemoryFile _file;
 
   final UriKind uriKind;
 
   _MemoryFileSource(this._file, this.uriKind);
 
   @override
+  bool operator ==(other) {
+    if (other is _MemoryFileSource) {
+      return other._file == _file;
+    }
+    return false;
+  }
+
+  @override
   TimestampedData<String> get contents {
     return new TimestampedData<String>(modificationStamp, _file._content);
   }
 
   @override
   String get encoding {
     return '${new String.fromCharCode(uriKind.encoding)}${_file.fullName}';
   }
 
   @override
   bool exists() => _file.exists;
 
   @override
   String get fullName => _file.fullName;
 
   @override
+  int get hashCode => _file.hashCode;
+
+  @override
   bool get isInSystemLibrary => false;
 
   @override
   int get modificationStamp => _file._timestamp;
 
   @override
   Source resolveRelative(Uri relativeUri) {
     String relativePath = fromUri(relativeUri);
     String folderPath = dirname(_file._path);
     String path = join(folderPath, relativePath);
@@ skipping 185 matching lines @@
   Resource getResource(String path) {
     if (io.FileSystemEntity.isDirectorySync(path)) {
       io.Directory directory = new io.Directory(path);
       return new _PhysicalFolder(directory);
     } else {
       io.File file = new io.File(path);
       return new _PhysicalFile(file);
     }
   }
 }