| // 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 ~ |
| /// @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? |
| //^ |
| // [analyzer] unspecified |
| // [cfe] unspecified |
| } |
