// 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 We say that a type T0 is a subtype of a type T1 (written T0 <: T1)
 * when:
 * Left Null: if T0 is Null then:
 * - if T1 is a type variable (promoted or not) the query is false
 * - If T1 is FutureOr<S> for some S, then the query is true iff Null <: S.
 * - If T1 is Null, S? or S* for some S, then the query is true.
 * - Otherwise, the query is false
 * @description Check that if type T0 is Null and T1 is FutureOr<S> for some S,
 * and Null is not subtype of S then T0 is not subtype of T1.
 * @author sgrekhov@unipro.ru
 */
/**
 * @description Check that if type T0 is not a subtype of a type T1, then
 * instance of T0 cannot be be assigned to the superclass member of type T1.
 * Assignment to variable of super class is tested.
 * @author sgrekhov@unipro.ru
 * @author ngl@unipro.ru
 */
/*
 * This test is generated from left_null_fail_A01.dart and 
 * class_member_super_fail_x01.dart.
 * Don't modify it. If you want to change this file, change one of the files 
 * above and then run generator.dart to regenerate the tests.
 */


import "dart:async";

Null t0Instance = null;
FutureOr<Object> t1Instance = new Object();

const t1Default = const Object();


class ClassMemberSuper1_t02 {
  FutureOr<Object> m = t1Default;

  ClassMemberSuper1_t02(Null value) {
    m = value;
//      ^^^^^
// [analyzer] unspecified
// [cfe] unspecified
  }
  ClassMemberSuper1_t02.named(Null value) {
    m = value;
//      ^^^^^
// [analyzer] unspecified
// [cfe] unspecified
  }
  ClassMemberSuper1_t02.valid(FutureOr<Object> value) {
    m = value;
  }
  void set superSetter(FutureOr<Object> val) {}
}

class ClassMember1_t02 extends ClassMemberSuper1_t02 {
  ClassMember1_t02() : super(t0Instance) {}
  ClassMember1_t02.named() : super.named(t0Instance) {}
  ClassMember1_t02.valid() : super.valid(t1Default);
  test1() {
    m = t0Instance;
//      ^^^^^^^^^^
// [analyzer] unspecified
// [cfe] unspecified
  }
  test2() {
    superSetter = t0Instance;
//                ^^^^^^^^^^
// [analyzer] unspecified
// [cfe] unspecified
  }
}

main() {
  new ClassMember1_t02.valid().m = t0Instance;
//                                 ^^^^^^^^^^
// [analyzer] unspecified
// [cfe] unspecified
  new ClassMember1_t02.valid().superSetter = t0Instance;
//                                           ^^^^^^^^^^
// [analyzer] unspecified
// [cfe] unspecified
}