| /* |
| * 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, child |
| * migrated method with [Never] return value cannot be called and compile error |
| * is thrown in this case. |
| * |
| * @author iarkh@unipro.ru |
| */ |
| // SharedOptions=--enable-experiment=non-nullable |
| |
| import "override_checking_legacy_lib.dart"; |
| |
| class A extends LEGACY_RETURN { |
| Never getInt() => throw "It's impossible!"; |
| Never getObject() => throw "It's impossible!"; |
| Never getDynamic() => throw "It's impossible!"; |
| Never getFunction() => throw "It's impossible!"; |
| Never getNull() => throw "It's impossible!"; |
| Never getFutureOr() => throw "It's impossible!"; |
| Never getFutureOrInt() => throw "It's impossible!"; |
| Never getFutureOrFunction() => throw "It's impossible!"; |
| } |
| |
| main() { |
| A a = A(); |
| |
| a.getInt(); |
| // ^^^^^^ |
| // [analyzer] unspecified |
| // [cfe] unspecified |
| |
| a.getObject(); |
| // ^^^^^^^^^ |
| // [analyzer] unspecified |
| // [cfe] unspecified |
| |
| a.getDynamic(); |
| // ^^^^^^^^^^ |
| // [analyzer] unspecified |
| // [cfe] unspecified |
| |
| a.getFunction(); |
| // ^^^^^^^^^^^ |
| // [analyzer] unspecified |
| // [cfe] unspecified |
| |
| a.getNull(); |
| // ^^^^^^^ |
| // [analyzer] unspecified |
| // [cfe] unspecified |
| |
| a.getFutureOr(); |
| // ^^^^^^^^^^^ |
| // [analyzer] unspecified |
| // [cfe] unspecified |
| |
| a.getFutureOrInt(); |
| // ^^^^^^^^^^^^^^ |
| // [analyzer] unspecified |
| // [cfe] unspecified |
| |
| a.getFutureOrFunction(); |
| // ^^^^^^^^^^^^^^^^^^^ |
| // [analyzer] unspecified |
| // [cfe] unspecified |
| } |