LanguageFeatures/nnbd/weak/extension_method_resolution_A01_t04.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 method resolution is applicable to the
 * nullable type. Test type A?*
 * @author sgrekhov@unipro.ru
 * @issue 41349
 */
// Requirements=nnbd-weak
import "legacy_lib.dart";
import "../../../Utils/expect.dart";

extension on A {
  String get text => "Lily was here";
}

void main() {
  A? a = null;
  Expect.isNull(a?.text);
}