|  | // Copyright (c) 2015, 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=2.19 | 
|  |  | 
|  | // Dart2js regression test: Test that the type mask for non-null exact Mixin is | 
|  | // created for Mixin.getter. | 
|  |  | 
|  | import 'package:expect/expect.dart'; | 
|  |  | 
|  | class Mixin { | 
|  | @pragma('dart2js:noInline') | 
|  | get getter => 42; | 
|  | } | 
|  |  | 
|  | class Superclass {} | 
|  |  | 
|  | class Subclass extends Superclass with Mixin { | 
|  | method() => super.getter; | 
|  | } | 
|  |  | 
|  | void main() { | 
|  | Expect.equals(42, new Subclass().method()); | 
|  | } |