| // 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 a migrated library, override checking must check that an |
| /// override is consistent with all overridden methods from other migrated |
| /// libraries in the super-interface chain, since a legacy library is permitted |
| /// to override otherwise incompatible signatures for a method. |
| /// |
| /// @description Check that if opted-in class extends legacy class, migrated |
| /// abstract method with non-required non-nullable parameter can override legacy |
| /// method with named parameter (which is nullable) with default value. |
| /// @author iarkh@unipro.ru |
| |
| // Requirements=nnbd-weak |
| |
| import "../../../../Utils/expect.dart"; |
| import "override_checking_A02_opted_out_lib.dart"; |
| |
| abstract class A extends LEGACY_REQUIRED_ARGS { |
| void test_default({int i}); |
| } |
| |
| class B extends A { |
| void test_default({int i = 1}) { |
| Expect.equals(1, i); |
| } |
| } |
| |
| main() { |
| B().test_default(); |
| } |