// Copyright (c) 2018, 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 If T1 is Null? then T0 is
/// subtype of T1
/// @author sgrekhov@unipro.ru
///
/// @description Check that if type T0 is a subtype of a type T1, then instance
/// of T0 can be assigned to the superclass member of type T1
/// @author sgrekhov@unipro.ru
///
/// This test is generated from left_null_A04.dart and 
/// class_member_x02.dart.
/// Don't modify it. If you want to change this test, change one of the files 
/// above and then run generator.dart to regenerate the tests.


import '../../utils/common.dart';


Null t0Instance = null;
Null? t1Instance = null;

const t1Default = null;


class ClassMemberSuper1_t02 {
  Null? m;

  ClassMemberSuper1_t02(dynamic value): m = value {
  }

  ClassMemberSuper1_t02.named(dynamic value): m = value {
  }

  ClassMemberSuper1_t02.short(this.m);

  void set superSetter(Null? val) {}
}

class ClassMember1_t02 extends ClassMemberSuper1_t02 {

  ClassMember1_t02() : super(forgetType(t0Instance)) {}

  ClassMember1_t02.named() : super.named(forgetType(t0Instance)) {}

  ClassMember1_t02.short() : super.short(forgetType(t0Instance));

  test() {
    m = forgetType(t0Instance);
    superSetter = forgetType(t0Instance);
  }
}

class ClassMemberSuper2_t02<X> {
  X m;

  ClassMemberSuper2_t02(dynamic value): m = value {
  }

  ClassMemberSuper2_t02.named(dynamic value): m = value {
  }

  ClassMemberSuper2_t02.short(this.m);

  void set superSetter(X val) {}
}

class ClassMember2_t02<X> extends ClassMemberSuper2_t02<X> {

  ClassMember2_t02() : super(forgetType(t0Instance)) {}

  ClassMember2_t02.named() : super.named(forgetType(t0Instance)) {}

  ClassMember2_t02.short() : super.short(forgetType(t0Instance));

  test() {
    m = forgetType(t0Instance);
    superSetter = forgetType(t0Instance);
  }
}

main() {
  ClassMember1_t02 c1 = new ClassMember1_t02();
  c1 = new ClassMember1_t02.short();
  c1 = new ClassMember1_t02.named();
  c1.m = forgetType(t0Instance);
  c1.test();
  c1.superSetter = forgetType(t0Instance);

  // Test type parameters

  //# <-- NotGenericFunctionType
  ClassMember2_t02<Null?> c2 = new ClassMember2_t02<Null?>();
  c2 = new ClassMember2_t02<Null?>.short();
  c2 = new ClassMember2_t02<Null?>.named();
  c2.m = forgetType(t0Instance);
  c2.test();
  c2.superSetter = forgetType(t0Instance);
  //# -->
}