| // 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. | 
 | // | 
 |  | 
 | // @dart = 2.9 | 
 |  | 
 | library Library5Test.dart; | 
 |  | 
 | import "package:expect/expect.dart"; | 
 | import "library5a.dart" as lib5a; | 
 | import "library5b.dart" as lib5b; | 
 |  | 
 | int foo(lib5a.Fun f) { | 
 |   return f(); | 
 | } | 
 |  | 
 | int bar(lib5b.Fun f) { | 
 |   return f(42); | 
 | } | 
 |  | 
 | main() { | 
 |   Expect.equals(41, foo(() => 41)); | 
 |   Expect.equals(42, bar((x) => x)); | 
 | } |