| // 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. |
| |
| // @dart = 2.9 |
| |
| /// @assertion |
| /// <extension> ::= |
| /// `extension' <identifier>? <typeParameters>? `on' <type> `?'? `{' |
| /// memberDeclaration* |
| /// `}' |
| /// If an extension declaration is only used locally in a library, there might be |
| /// no need to worry about naming conflicts or overrides. In that case, then name |
| /// identifier can be omitted (hence the <identifier>? in the grammar above). |
| /// This is equivalent to giving the extension a fresh private name. |
| /// |
| /// @description Check that the extension name can be ommitted |
| /// @author sgrekhov@unipro.ru |
| |
| |
| |
| import "my_fancy_list_lib.dart"; |
| |
| main() { |
| List<String> list = ["Lily", "was", "here"]; |
| list.nnDoubleLength; //# 01: compile-time error |
| List.nnClassName; //# 02: compile-time error |
| } |
