/*
 * 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 A simple member invocation on a target expression X is an
 * expression of one of the forms:
 * Member invocation on target X	     Corresponding member name
 *   ~X                                     unary~
 * @description Check explicit extension member invocation in form of ~X
 * @author sgrekhov@unipro.ru
 */


class C {
  String operator ~() => "Lily was here";
}

extension Extension1 on C {
  String operator -() => "Show must go on";
}

main() {
  C c = new C();
  ~Extension1(c);
//^^^^^^^^^^^
// [analyzer] unspecified
// [cfe] unspecified
}