| // Copyright (c) 2020, 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 In an unmigrated library, override checking is done using legacy |
| /// types. This means that an unmigrated library can bring together otherwise |
| /// incompatible methods. When choosing the most specific signature during |
| /// interface computation, all nullability and requiredness annotations are |
| /// ignored, and the [Never] type is treated as [Null]. |
| /// |
| /// @description Check that if generic legacy class extends generic opted-in |
| /// class with [FutureOr] class type parameter, legacy type parameter is OK and |
| /// the fact that parent class type parameter is non-nullable is ignored. |
| /// |
| /// @Issue 39666. |
| /// @author iarkh@unipro.ru |
| |
| // Requirements=nnbd-weak |
| // @dart=2.6 |
| |
| import "dart:async"; |
| import "../../../../Utils/expect.dart"; |
| import "override_checking_A01_opted_in_futureor_lib.dart"; |
| |
| class A<T extends FutureOr<int>> extends OPTED_FUTUREOR_INT<T> { dynamic getParamType() => typeOf<T>(); } |
| |
| main() { |
| Expect.equals( typeOf<FutureOr<int>>(), A ().getParamType()); |
| Expect.equals( int, A<int>().getParamType()); |
| } |