LanguageFeatures/nnbd/extension_method_resolution_A02_t01.dart

// Copyright (c) 2020, 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 For the purposes of extension method resolution, there is no
 * special treatment of nullable types with respect to what members are
 * considered accessible. That is, the only members of a nullable type that are
 * considered accessible (and hence which take precedence over extensions) are
 * the members on Object.
 *
 * @description Check that extension for non nullable is not applicable to the
 * nullable one
 * @author sgrekhov@unipro.ru
 */

extension on int {
  bool get isEven => false;
}
main() {
  var i = 42 as int?;
  i.isEven;
//  ^^^^^^
// [analyzer] unspecified
// [cfe] unspecified
}