| // Copyright (c) 2019, 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. |
| |
| /** |
| * @assertion an extension declaration is a top-level declaration with a grammar |
| * similar to: |
| * <extension> ::= |
| * `extension' <identifier>? <typeParameters>? `on' <type> `?'? `{' |
| * memberDeclaration* |
| * `}' |
| * Such a declaration introduces its name (the identifier) into the surrounding |
| * scope |
| * |
| * @description Check an empty extension |
| * @author sgrekhov@unipro.ru |
| */ |
| |
| |
| class C {} |
| |
| extension MyC on C {} |
| |
| main() { |
| new C(); |
| } |
