| // Copyright (c) 2019, 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. |
| |
| /** |
| * @assertion It is an error to read a field or tear off a method from an |
| * expression whose type is potentially nullable and not dynamic, except for the |
| * methods and fields on Object. |
| * |
| * @description Check that it is no compile-time error to tear off a method |
| * from an expression if this is a method or field on Object. Test type |
| * aliases |
| * @author sgrekhov@unipro.ru |
| */ |
| // SharedOptions=--enable-experiment=nonfunction-type-aliases |
| // Requirements=nnbd-strong |
| import "../../../Utils/expect.dart"; |
| |
| class A { |
| } |
| |
| typedef AAlias = A?; |
| |
| main() { |
| AAlias a = new A(); |
| Expect.isNotNull(a.toString); |
| } |
