| // 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. |
| |
| // @dart = 2.9 |
| |
| /// @assertion We say that a type T0 is a subtype of a type T1 (written T0 <: T1) |
| /// when: |
| /// Left Type Variable Bound: T0 is a type variable X0 with bound B0 |
| /// and B0 <: T1 |
| /// @description Check that if T0 is a type variable X0 with bound B0 and |
| /// B0 <: T1 then T0 is a subtype of a type T1 |
| /// @author ngl@unipro.ru |
| |
| |
| class T1 {} |
| class B0 extends T1 {} |
| class X0 extends B0 {} |
| |
| X0 t0Instance = new X0(); |
| T1 t1Instance = new T1(); |
| |
| //# @T0 = X0 |
| //# @T1 = T1 |
