| // 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: |
| /// Interface Compositionality: T0 is an interface type |
| /// C0<S0, ..., Sk> and T1 is C0<U0, ..., Uk> and each Si <: Ui |
| /// @description Check that if type T0 is an interface type |
| /// C0<S0, ..., Sk> and T1 is C0<U0, ..., Uk> and not all of Si <: Ui then T0 is |
| /// not a subtype of T1 |
| /// @author sgrekhov@unipro.ru |
| |
| abstract class U0 {} |
| abstract class U1 {} |
| abstract class U2 {} |
| |
| abstract class S0 extends U0 {} |
| abstract class S1 extends U1 {} |
| // no subtype relation between S2 and U2 |
| abstract class S2 {} |
| |
| class C0<X, Y, Z> { |
| const C0(); |
| } |
| |
| C0<S0, S1, S2> t0Instance = new C0<S0, S1, S2>(); |
| C0<U0, U1, U2> t1Instance = new C0<U0, U1, U2>(); |
| |
| const t1Default = const C0<U0, U1, U2>(); |
| |
| //# @T0 = C0<S0, S1, S2> |
| //# @T1 = C0<U0, U1, U2> |
