| // 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. |
| |
| // SharedOptions=--enable-experiment=non-nullable |
| |
| typedef T0 = Function?; |
| typedef T1<X> = List<X?>?; |
| typedef T2<X, Y> = Map<X?, Y?>?; |
| typedef T3 = Never? Function(void)?; |
| typedef T4<X> = X? Function(X?, {required X? name})?; |
| typedef T5<X extends String, Y extends List<X?>> = |
| X? Function(Y?, [Map<Y, Y?>]); |
| |
| void main() { |
| // ignore:unused_local_variable |
| var ensure_usage = [T0, T1, T2, T3, T4, T5]; |
| } |
