| /* |
| * Copyright (c) 2018, 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 We say that a type T0 is a subtype of a type T1 (written T0 <: T1) |
| * when: |
| * Right Top: T1 is a top type (i.e. Object?, dynamic, or void) |
| * @description Check that if type T1 is an Object then T0 is a subtype of a |
| * type T1 |
| * @author sgrekhov@unipro.ru |
| */ |
| // SharedOptions=--enable-experiment=non-nullable |
| class T0 {} |
| |
| T0 t0Instance = new T0(); |
| Object? t1Instance = new Object(); |
| |
| //# @T0 = T0 |
| //# @T1 = Object? |
