// Copyright (c) 2025, 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.

extension on int {
  external int field;

  bool get getter {
    return field.isEven;
  }

  set setter(bool value) {
    field = value ? 0 : 1;
  }
}
