| // Copyright (c) 2016, 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 Let S be the runtime type of o. |
| /// • If the body of f is marked async it is a compile type error if o is not |
| /// null and Future<S> is not a subtype of the actual return type of f. |
| /// • Otherwise, it is a compile type error if o is not null and the runtime |
| /// type of o is not a subtype of the actual return type of f. |
| /// |
| /// @description Checks that compile error is raised if o is |
| /// not null and Future<S> is not a subtype of the actual return type of the |
| /// immediately enclosing async function. |
| /// |
| /// @Issue 26133 |
| /// @author a.semenov@unipro.ru |
| |
| import 'dart:async'; |
| import '../../../Utils/expect.dart'; |
| |
| var r = 'a'; |
| |
| Future<int> foo() async { return r; } |
| // ^ |
| // [analyzer] unspecified |
| // [cfe] unspecified |
| |
| main() {} |