| /* |
| * Copyright (c) 2020, 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 In an unmigrated library, override checking is done using legacy |
| * types. This means that an unmigrated library can bring together otherwise |
| * incompatible methods. When choosing the most specific signature during |
| * interface computation, all nullability and requiredness annotations are |
| * ignored, and the [Never] type is treated as [Null]. |
| * |
| * @description Check that if legacy class implements opted-in class, legacy |
| * setter can accept [null] values if corresponding parent setter is of nullable |
| * type. |
| * |
| * @author iarkh@unipro.ru |
| */ |
| // SharedOptions=--enable-experiment=non-nullable |
| // @dart=2.6 |
| |
| import "dart:async"; |
| import "../../Utils/expect.dart"; |
| import "override_checking_A01_opted_in_lib.dart"; |
| |
| class A implements OPTED_NULLABLE_SETTER { |
| void set setInt(int i) { Expect.isNull(i); } |
| void set setObject(Object o) { Expect.isNull(o); } |
| void set setFunction(Function f) { Expect.isNull(f); } |
| void set setFutureOr(FutureOr i) { Expect.isNull(i); } |
| void set setDynamic(dynamic d) { Expect.isNull(d); } |
| void set setNull(Null n) { Expect.isNull(n); } |
| } |
| |
| main() { |
| A a = A(); |
| |
| a.setInt = null; |
| a.setObject = null; |
| a.setFutureOr = null; |
| a.setFunction = null; |
| a.setDynamic = null; |
| a.setNull = null; |
| } |