| // 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'; |
| |
| void voidValue = null; |
| |
| void main() { |
| test1(); |
| test2(); |
| test3(); |
| test4(); |
| test5(); |
| test6(); |
| } |
| |
| // Testing that a block bodied function may have no return |
| FutureOr<void> test1() {} |
| |
| // Testing that a block bodied function may return Future<void> |
| FutureOr<void> test2() { |
| return Future<void>.value(null); |
| } |
| |
| // Testing that a block bodied function may return FutureOr<void> |
| FutureOr<void> test3() { |
| return null as FutureOr<void>; |
| } |
| |
| // Testing that a block bodied function may return Future<void> |
| FutureOr<void> test4() { |
| return Future<Future<void>>.value(Future<void>.value(null)); |
| } |
| |
| // Testing that a block bodied function may return non-void values |
| FutureOr<void> test5() { |
| return 42; |
| } |
| |
| // Testing that a block bodied function may return non-void Future values |
| FutureOr<void> test6() { |
| return new Future.value(42); |
| } |