| // Copyright (c) 2025, 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. | |
| class C { | |
| // In a generative constructor, but not an initializing formal. | |
| C({int? _notInitializingFormal}); | |
| // In a factory constructor. | |
| factory C.fact({int? _inFactory}) => throw '!'; | |
| } | |
| // In a non-constructor function. | |
| void function({int? _parameter}) {} | |
| main() {} |