| /* |
| * Copyright (c) 2021, 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 CONST_CANONICAL_TYPE(FutureOr<T>) = FutureOr<S>* where S is |
| * CONST_CANONICAL_TYPE(T) |
| * |
| * @description Checks that |
| * CONST_CANONICAL_TYPE(FutureOr<Never>) = FutureOr<Never> |
| * Please note that this test should not be executed with analyzer. |
| * @Issue 45067 |
| * The exception is that some constant expressions are evaluated at compile time |
| * (we don't actually promise that they are evaluated before run time, but we |
| * know that some compile-time evaluation does take place); some of those |
| * constant expressions have different semantics in an execution with sound and |
| * unsound null checking. Hence we may be able to observe a different behavior. |
| * The analyzer assumes sound null checking during constant evaluation. So, the |
| * test should be skipped by analyzer. |
| * @author iarkh@unipro.ru |
| */ |
| // Requirements=nnbd-weak |
| |
| import"dart:async"; |
| import "../../const_evaluation_lib.dart"; |
| |
| const c = C<FutureOr<Never>>(null); |
| |
| const c1 = C<FutureOr<Never>>(1); |
| // ^^^^^^^^^^^^^^^^^^^^^ |
| // [analyzer] unspecified |
| // [cfe] unspecified |
| |
| main() {} |