// Copyright (c) 2011, 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 It is a compile-time error if the default value of an optional
/// parameter is not a compile-time constant.
/// @description Checks that it is a compile-time error if the default value
/// of an optional parameter is not a compile-time constant.
/// @author rodionov
/// @reviewer kaigorodov


main() {
  try {
    int x = 1;
    void func({var y: x}) {}
//                    ^
// [analyzer] unspecified
// [cfe] unspecified
  } catch (x) {}
}
