// 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.

/**
 * @assertion It is a compile-time error if an expression is required to be a
 * constant expression but its evaluation would raise an exception.
 * @description Checks that a NoSuchMethodError raised during evaluation of a
 * compile-time constant causes a compile-time error.
 * @compile-error
 * @author iefremov
 */

class A {
  const A(z) : x = z + z;
  final x;
}

const m = const A(const []);

main() {
  print(m);
}
