| // Copyright (c) 2018, 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. | |
| import 'dart:async'; | |
| class A<T> implements FutureOr<T> {} | |
| // ^^^^^^^^^^^ | |
| // [analyzer] COMPILE_TIME_ERROR.IMPLEMENTS_DISALLOWED_CLASS | |
| // ^ | |
| // [cfe] The type 'FutureOr' can't be used in an 'implements' clause. | |
| void main() { | |
| A a = new A(); | |
| } |