| // Copyright (c) 2023, 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 We say that a type T0 is a subtype of a type T1 (written |
| /// T0 <: T1) when: |
| /// Assume that T1, .. Ts are types, and V resolves to an extension type |
| /// declaration of the following form: |
| /// |
| /// extension type V<X1 extends B1, .. Xs extends Bs>(T id) ... { |
| /// ... // Members. |
| /// } |
| /// It is then allowed to use V<T1, .. Tk> as a type. |
| /// |
| /// @description Check that if type `T0` is an extension type `V` with nullable |
| /// representation type then it is subtype of `Object?` |
| /// @author sgrekhov22@gmail.com |
| /// |
| /// @description Check that if type T0 is a subtype of a type T1, then instance |
| /// of T0 can be assigned to the class member of type T1 |
| /// @author sgrekhov@unipro.ru |
| /// |
| /// This test is generated from test_types/extension_type_A03.dart and |
| /// test_cases/class_member_x01.dart. Don't modify it! |
| /// If you need to change this test, then change one of the files above and then |
| /// run generator/generator.dart to regenerate the tests. |
| |
| // SharedOptions=--enable-experiment=inline-class |
| |
| extension type const V<T>(T id) {} |
| |
| V<int?> t0Instance = V<int?>(42); |
| |
| class ClassMember1_t01 { |
| static Object? s = t0Instance; |
| Object? m = t0Instance; |
| Object? _p = t0Instance; |
| |
| ClassMember1_t01() { |
| s = t0Instance; |
| m = t0Instance; |
| _p = t0Instance; |
| } |
| |
| ClassMember1_t01.named(Object? value) { |
| s = value; |
| m = value; |
| _p = value; |
| } |
| |
| ClassMember1_t01.short(this.m, this._p); |
| |
| test() { |
| s = t0Instance; |
| m = t0Instance; |
| _p = t0Instance; |
| } |
| |
| set setter(Object? val) { |
| _p = val; |
| } |
| |
| Object? get getter => _p; |
| |
| static staticTest() { |
| s = t0Instance; |
| } |
| |
| static set staticSetter(Object? val) { |
| s = val; |
| } |
| |
| static Object? get staticGetter => t0Instance; |
| } |
| |
| main() { |
| ClassMember1_t01 c1 = new ClassMember1_t01(); |
| c1 = new ClassMember1_t01.short(t0Instance, |
| t0Instance); |
| c1 = new ClassMember1_t01.named(t0Instance); |
| c1.m = t0Instance; |
| c1.test(); |
| c1.setter = t0Instance; |
| c1.getter; |
| |
| ClassMember1_t01.s = t0Instance; |
| ClassMember1_t01.staticTest(); |
| ClassMember1_t01.staticSetter = t0Instance; |
| ClassMember1_t01.staticGetter; |
| } |