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The "@compile-error" comment is an old not-great way of defining static error tests. See: https://github.com/dart-lang/sdk/issues/45634 Change-Id: I3a41bb83767052abda1fdfc77e21bd1a83188482 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/296441 Auto-Submit: Bob Nystrom <rnystrom@google.com> Reviewed-by: Jake Macdonald <jakemac@google.com> Commit-Queue: Bob Nystrom <rnystrom@google.com>
20 lines
596 B
Dart
20 lines
596 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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void voidValue = null;
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void main() {
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test();
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}
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// Testing that a block bodied function may not return void
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FutureOr<FutureOr<void>> test() {
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return voidValue;
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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 'void' can't be returned from a function with return type 'FutureOr<FutureOr<void>>'.
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}
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