| // Copyright (c) 2022, 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 An instance field is promotable if all the following conditions |
| /// hold: |
| /// - It refers to a field (not a getter) |
| /// - The field is private |
| /// - The field is final |
| /// - There is no getter with the same name elsewhere in the library |
| /// - There is no non-final field with the same name elsewhere in the library |
| /// - There is no implicit noSuchMethod forwarder with the same name elsewhere |
| /// in the library. |
| /// |
| /// @description Checks that an instance field is not promotable if it is not |
| /// final |
| /// @author sgrekhov22@gmail.com |
| |
| class C { |
| int? _x; |
| int? _y = 42; |
| C(this._x); |
| |
| void test() { |
| if (_x != null) { |
| _x.isOdd; |
| // ^^^^^ |
| // [analyzer] unspecified |
| // [cfe] unspecified |
| } |
| if (_y is int) { |
| _y.isOdd; |
| // ^^^^^ |
| // [analyzer] unspecified |
| // [cfe] unspecified |
| } |
| } |
| } |
| |
| mixin M { |
| int? _x = 42; |
| |
| void test() { |
| if (_x != null) { |
| _x.isOdd; |
| // ^^^^^ |
| // [analyzer] unspecified |
| // [cfe] unspecified |
| } |
| } |
| } |
| |
| class MA = Object with M; |
| |
| main() { |
| C c = C(1); |
| if (c._x is int) { |
| c._x.isEven; |
| // ^^^^^^ |
| // [analyzer] unspecified |
| // [cfe] unspecified |
| } |
| if (c._y != null) { |
| c._y.isEven; |
| // ^^^^^^ |
| // [analyzer] unspecified |
| // [cfe] unspecified |
| } |
| c.test(); |
| |
| MA ma = MA(); |
| if (ma._x is int) { |
| ma._x.isEven; |
| // ^^^^^^ |
| // [analyzer] unspecified |
| // [cfe] unspecified |
| } |
| ma.test(); |
| } |
