| // 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 |
| |
| class T0 {} |
| |
| T0 t0Instance = new T0(); |
| Object? t1Instance = new Object(); |
| |
| const t1Default = null; |
| |
| //# @T0 = T0 |
| //# @T1 = Object? |
