| // Copyright (c) 2023, 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. |
| |
| // Regression test: inference error when returning a closure from an async |
| // function. |
| // |
| // For details, see: https://github.com/dart-lang/sdk/issues/52825 |
| |
| Future<double Function(int)> get getter async => |
| // The parameter `p` in this closure is accidentally treated as having |
| // an empty type mask. As a result `.toDouble` is tree-shaken. |
| // |
| // Adding an `await` circumvents this issue. |
| (int p) => p.toDouble(); |
| |
| main() => getter.then((double Function(int) f) => f(1)); |
