| // Copyright (c) 2016, 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 |
| * Description Operator Associativity Precedence |
| * Unary postfix ., ?., e++, e–-, e1[e2], e1(), () None 16 |
| * @description Test that '?.' unary postfix operator has highest |
| * precedence (16). Compare with Unary prefix (precedence 15). Test that |
| * '?.' has priority higher than ~ |
| * @compile-error |
| * @author sgrekhov@unipro.ru |
| * @issue 42379 |
| */ |
| |
| class C { |
| C operator ~() { |
| return this; |
| } |
| |
| C e() { |
| return this; |
| } |
| } |
| |
| main() { |
| C c = new C(); |
| ~c?.e(); // With NNBD we are unable to run ~c?.e(); because c?.e() returns C? |
| } |
