| /* |
| * Copyright (c) 2019, 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 |
| * field can accept non-null values if corresponding parent field 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_opted_in_lib.dart"; |
| |
| void testme1() {} |
| |
| class A implements OPTED_NULLABLE_FIELD { |
| int i = 1; |
| Object o = 1; |
| dynamic d = 1; |
| Function f = testme1; |
| FutureOr fo = 1; |
| Null n = null; |
| void v; |
| } |
| |
| main() { |
| A a = A(); |
| Expect.equals(1, a.i); |
| Expect.equals(1, a.o); |
| Expect.equals(1, a.d); |
| Expect.equals(testme1, a.f); |
| Expect.equals(1, a.fo); |
| } |