| // Copyright (c) 2019, 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. |
| |
| // This test verifies that typedef types used in constants are correctly |
| // visited in the tree shaker. |
| // Regression test for https://github.com/dart-lang/sdk/issues/37149. |
| |
| import 'dart:async' show FutureOr; |
| |
| typedef ComputeCallback<Q, R> = FutureOr<R> Function(Q message); |
| typedef _ComputeImpl = Future<R> Function<Q, R>( |
| ComputeCallback<Q, R> callback, Q message, |
| {String debugLabel}); |
| |
| Future<R> isolatesCompute<Q, R>(ComputeCallback<Q, R> callback, Q message, |
| {String debugLabel}) async { |
| return null; |
| } |
| |
| const _ComputeImpl compute = isolatesCompute; |
| |
| main() { |
| compute.call(null, null); |
| } |