blob: c97fd4f954e74b1d31459b21755494af4e0862fc [file] [log] [blame]
// 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';
/* `return exp;` where `exp` has static type `S` is an error if the future
* value type of the function is neither `void` nor `dynamic`,
* and `flatten(S)` is `void` or `void*`.
* With null-safety, this is an error because of the downcast.
Future<void> v = Future.value(null);
FutureOr<int> test() async {
return v;
// ^
// [cfe] A value of type 'Future<void>' can't be returned from an async function with return type 'FutureOr<int>'.
void main() {