| // Copyright (c) 2017, 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 |
| |
| import 'package:expect/expect.dart'; |
| |
| class B { |
| m(int v) => v + 42; |
| } |
| |
| abstract class C extends B { |
| m(Object v); |
| } |
| |
| class D extends C { |
| m(Object v) => 'hi $v!'; |
| } |
| |
| /// Regression test for https://github.com/dart-lang/sdk/issues/30927, DDC used |
| /// to use the incorrect signature for D.m. |
| main() { |
| dynamic d = new D(); |
| // Make sure we dispatch using the type signature for D.m, not B.m |
| Expect.equals(d.m('world'), 'hi world!'); |
| } |
