LanguageFeatures/nnbd/overriding/override_checking_A02_SETTER_t05.dart

/*
 * Copyright (c) 2019, 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 In a migrated library, override checking must check that an
 * override is consistent with all overridden methods from other migrated
 * libraries in the super-interface chain, since a legacy library is permitted
 * to override otherwise incompatible signatures for a method.
 *
 * @description Check that if opted-in class implement legacy class, child
 * opted-in setter can have nullable argument and so accept [null] values.
 *
 * @author iarkh@unipro.ru
 */
// SharedOptions=--enable-experiment=non-nullable
// Requirements=nnbd-strong
import "dart:async";
import "../../../Utils/expect.dart";
import "override_checking_A02_opted_out_lib.dart";

class A implements LEGACY_SETTER {
  void set setInt(int? i)                             { Expect.isNull(i); }
  void set setObject(Object? o)                       { Expect.isNull(o); }
  void set setDynamic(dynamic d)                      { Expect.isNull(d); }
  void set setNull(Null n)                            { Expect.isNull(n); }
  void set setFunction(Function? f)                   { Expect.isNull(f); }
  void set setFutureOr(FutureOr f)                    { Expect.isNull(f); }
  void set setFutureOrInt(FutureOr<int>? f)           { Expect.isNull(f); }
  void set setFutureOrFunction(FutureOr<Function>? f) { Expect.isNull(f); }
}

main() {
  A a = A();

  a.setInt = null;
  a.setObject = null;
  a.setDynamic = null;
  a.setNull = null;
  a.setFunction = null;
  a.setFutureOr = null;
  a.setFutureOrInt = null;
  a.setFutureOrFunction = null;
}