| // Copyright (c) 2011, 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. | 
 | // | 
 |  | 
 | // Using the same prefix name while importing two different libraries is | 
 | // not an error but both library1.dart and library2.dart define 'foo' which | 
 | // results in a duplicate definition error. | 
 |  | 
 | library Prefix3NegativeTest.dart; | 
 | import "library1.dart" as lib2;  // defines 'foo'. | 
 | import "library2.dart" as lib2;  // also defines 'foo'. | 
 |  | 
 |  | 
 | main() { | 
 |   lib2.foo = 1; | 
 | } |