| // Copyright (c) 2019, 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 The grammar of types is extended to allow any type to be suffixed |
| /// with a ? (e.g. int?) indicating the nullable version of that type. |
| /// |
| /// @description Check that any type can be suffixed with a ? indicating the |
| /// nullable version of that type. Test different valid cases |
| /// @author sgrekhov@unipro.ru |
| |
| import "../../Utils/expect.dart"; |
| |
| int ? testInt(int ? i) => i == null ? i ?? 0 : i; |
| |
| int ? |
| testInt2(int |
| ? i) => i == null ? i ?? |
| 0 : i; |
| |
| main() { |
| var x = null; |
| int ? a = x ??= 3 > 0 ? x ?? 1: x ?? 2; |
| Expect.equals(1, a); |
| Expect.equals(testInt(a), a); |
| } |
