| // Copyright (c) 2015, 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 |
| * ifNullExpression: |
| * logicalOrExpression (‘??’ logicalOrExpression)* |
| * |
| * @description Verify several kinds of if-null expressions, logicalOrExpression |
| * is an expression. |
| * @static-warning |
| * @author a.semenov@unipro.ru |
| */ |
| import '../../../Utils/expect.dart'; |
| |
| main() { |
| int? x = 1; |
| dynamic empty = []; |
| Expect.equals(2, ((x as int) + 1) ?? 10); /// static type warning |
| Expect.iterableEquals([], empty ?? 10); |
| Expect.equals(30, (10 + 5 * 4) ?? (2 + 2 * 2)); /// static type warning |
| } |
