| // Copyright (c) 2020, 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. |
| |
| /*library: nnbd=true*/ |
| |
| import 'dart:async'; |
| |
| /*class: A:A<T>,Object*/ |
| class A<T> {} |
| |
| /*class: Foo:A<FutureOr<T?>>,Foo<T, S>,Object*/ |
| class Foo<T extends S, S extends Never> implements A<FutureOr<T?>> {} |
| |
| /*class: Bar:A<FutureOr<Never?>>,Bar,Object*/ |
| class Bar implements A<FutureOr<Never?>> {} |
| |
| /*class: Baz:A<Future<Null>?>,Baz,Object*/ |
| class Baz implements A<Future<Null>?> {} |
| |
| /// TODO: Solve CFE / analyzer difference. |
| /// Instantiation of [Foo] is `Foo<Never, Never>`, so it implements |
| /// `A<FutureOr<Never?>>`, and `Bar` implements the same `A<FutureOr<Never?>>`. |
| /// So, these two are syntactically equal, so NORM and TOP_MERGE should not |
| /// be applied. |
| /*cfe|cfe:builder.class: Hest:A<Future<Null>?>,Bar,Foo<Never, Never>,Hest,Object*/ |
| /*analyzer.class: Hest:A<FutureOr<Never?>>,Bar,Foo<Never, Never>,Hest,Object*/ |
| class Hest extends Foo implements Bar {} |
| |
| /*class: Fisk:A<Future<Null>?>,Bar,Baz,Fisk,Object*/ |
| class Fisk extends Bar implements Baz {} |
| |
| /*class: Naebdyr:A<Future<Null>?>,Baz,Foo<Never, Never>,Naebdyr,Object*/ |
| class Naebdyr extends Baz implements Foo {} |
| |
| main() {} |
