// 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 It is not an error to apply an expression of type Never in the
/// function position of a function call
///
/// @description Check that it is not  an error to apply an expression of type
/// Never in the function position of a function call. Test type aliases
/// @author sgrekhov@unipro.ru
/// @issue 39866

// Requirements=nnbd-strong
typedef Neverland = Never;

void test(var x) {
  if (x is Neverland) {
    x();
    x(1);
    x("1");
  }
}

main() {
  test(null);
}
