LanguageFeatures/Extension-methods/ommited_name_t01.dart

/*
 * 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
 * <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
 */
// SharedOptions=--enable-experiment=extension-methods

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
}