| // 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. |
| |
| // @dart=2.6 |
| |
| import 'dart:async'; |
| import 'constant_null_is.dart'; |
| |
| const d0 = null is int; |
| const d1 = null is Null; |
| //const d2 = null is FutureOr<Null>; |
| //const d3 = null is Never; |
| |
| test() { |
| expect(null is int, d0, "null is int (opt-out)"); |
| expect(null is Null, d1, "null is Null"); |
| //expect(null is FutureOr<Null>, d2, "null is FutureOr<Null> (opt-out)"); |
| //expect(null is Never, d3, "null is Never (opt-out)"); |
| } |