| // Copyright (c) 2017, 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. |
| // @dart=2.9 |
| /*@testedFeatures=inference*/ |
| library test; |
| |
| import 'dart:async'; |
| |
| T f<T>() => null; |
| |
| class D<T> {} |
| |
| class E<T> extends D<T> {} |
| |
| class B<T> { |
| D<T> x; |
| } |
| |
| class C<U> extends B<Future<U>> { |
| E<Future<U>> get x => null; |
| void set x(Object x) {} |
| void g() { |
| super.x = /*@ typeArgs=D<Future<C::U*>*>* */ f(); |
| } |
| } |
| |
| main() {} |
