| /* |
| * 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, opted-in |
| * getter of nullable type can override legacy getter which returns [null] |
| * |
| * @author iarkh@unipro.ru |
| */ |
| // SharedOptions=--enable-experiment=non-nullable |
| |
| import "dart:async"; |
| import "../../Utils/expect.dart"; |
| import "override_checking_legacy_lib.dart"; |
| |
| class A extends LEGACY_GETTER { |
| int? get getInt => null; |
| Object? get getObject => null; |
| dynamic get getDynamic => null; |
| Function? get getFunction => null; |
| Null get getNull => null; |
| FutureOr get getFutureOr => null; |
| FutureOr<int>? get getFutureOrInt => null; |
| FutureOr<Function>? get getFutureOrFunction => null; |
| } |
| |
| main() { |
| A a = A(); |
| Expect.isNull(a.getInt); |
| Expect.isNull(a.getObject); |
| Expect.isNull(a.getDynamic); |
| Expect.isNull(a.getFunction); |
| Expect.isNull(a.getNull); |
| Expect.isNull(a.getFutureOr); |
| Expect.isNull(a.getFutureOrInt); |
| Expect.isNull(a.getFutureOrFunction); |
| } |