| // 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. | |
| enum CyclicReference { | |
| e1(e2), | |
| e2(e1); | |
| final CyclicReference other; | |
| const CyclicReference(this.other); | |
| } |