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8de8a1c226
They are all errors now. Change-Id: If48d38e38e845fd5b5a950dd5514bf1cbbce03d8 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/155880 Reviewed-by: Brian Wilkerson <brianwilkerson@google.com>
26 lines
780 B
Dart
26 lines
780 B
Dart
// Copyright (c) 2018, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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import 'dart:async';
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/* `return exp;` where `exp` has static type `S` is an error if the future
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* value type of the function is neither `void` nor `dynamic`,
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* and `flatten(S)` is `void` or `void*`.
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*
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* With null-safety, this is an error because of the downcast.
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*/
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Future<void> v = Future.value(null);
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Future<int> test() async {
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return v;
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// ^
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// [analyzer] COMPILE_TIME_ERROR.RETURN_OF_INVALID_TYPE
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// [cfe] A value of type 'Future<void>' can't be returned from an async function with return type 'Future<int>'.
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}
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void main() {
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test();
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}
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