| // Copyright (c) 2026, 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. | |
| // `external` instance variables cannot be introduced by a declaring parameter. | |
| // SharedOptions=--enable-experiment=primary-constructors | |
| class C(external int x); | |
| // ^^^^^^^^ | |
| // [analyzer] SYNTACTIC_ERROR.EXTRANEOUS_MODIFIER | |
| // [cfe] Can't have modifier 'external' here. |