// Copyright (c) 2021, 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 an error to read a field or tear off a method from an
 * expression whose type is potentially nullable and not dynamic, except for the
 * methods and fields on Object.
 *
 * @description Check that it is no compile-time error to tear off a method
 * from an expression if this is a method or field on Object. Test type
 * aliases
 * @author sgrekhov@unipro.ru
 */
// SharedOptions=--enable-experiment=nonfunction-type-aliases
// Requirements=nnbd-weak
import "../../../../Utils/expect.dart";

class A {
}

typedef AAlias = A?;

main() {
  AAlias a = new A();
  Expect.isNotNull(a.toString);
}