| // 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. |
| |
| extension type S1(num id) implements String /* Error */ {} |
| |
| extension type S2(int id) implements num /* Ok */ {} |
| |
| extension type V1(num id) {} |
| |
| extension type V2(String id) implements V1 /* Error */ {} |
| |
| extension type V3(int id) implements V1 /* Ok */ {} |
| |
| extension type W1<T>(T id) {} |
| |
| extension type W2(String id) implements W1<num> /* Error */ {} |
| |
| extension type W3(int id) implements W1<num> /* Ok */ {} |
