Language/Classes/Instance_Methods/Operators/arity_0_t01.dart

// 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 the arity of the user-declared
/// operator ~ is not 0.
/// @description Checks that no compile-time error is produced if a user-defined
/// operator ~ specifies zero parameters.
/// @author kaigorodov

import "../../../../Utils/expect.dart";

class C {
  bool v;
  C(this.v);
  operator ~() {
    return !v;
  }
}

main() {
  Expect.isTrue(~new C(false));
  Expect.isFalse(~new C(true));
}