// 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 S* 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 class member of type T1
/// @author sgrekhov@unipro.ru
///
/// This test is generated from left_null_A06.dart and 
/// class_member_x01.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';

// Requirements=nnbd-weak
import "../../utils/legacy_lib.dart";

Null t0Instance = null;
X? t1Instance = new X();

const t1Default = const X();


class ClassMember1_t01 {
  static X? s = forgetType(t0Instance);
  X? m = forgetType(t0Instance);
  X? _p = forgetType(t0Instance);

  ClassMember1_t01() {
    s = forgetType(t0Instance);
    m = forgetType(t0Instance);
    _p = forgetType(t0Instance);
  }

  ClassMember1_t01.named(X? value) {
    s = value;
    m = value;
    _p = value;
  }

  ClassMember1_t01.short(this.m, this._p);

  test() {
    s = forgetType(t0Instance);
    m = forgetType(t0Instance);
    _p = forgetType(t0Instance);
  }

  set setter(X? val) {
    _p = val;
  }

  X? get getter => forgetType(_p);

  static staticTest() {
    s = forgetType(t0Instance);
  }

  static set staticSetter(X? val) {
    s = val;
  }

  static X? get staticGetter => forgetType(t0Instance);
}

class ClassMember2_t01<X> {
  X m;
  X _p;

  ClassMember2_t01():  m = forgetType(t0Instance), _p = forgetType(t0Instance) {
  }

  ClassMember2_t01.named(X value): m = value, _p = value {
  }

  ClassMember2_t01.short(this.m, this._p);

  test(X v) {
    m = v;
    _p = v;
  }

  set setter(X val) {
    _p = val;
  }

  X? get getter => forgetType(_p);
}

main() {
  ClassMember1_t01 c1 = new ClassMember1_t01();
  c1 = new ClassMember1_t01.short(forgetType(t0Instance),
      forgetType(t0Instance));
  c1 = new ClassMember1_t01.named(forgetType(t0Instance));
  c1.m = forgetType(t0Instance);
  c1.test();
  c1.setter = forgetType(t0Instance);
  c1.getter;

  ClassMember1_t01.s = forgetType(t0Instance);
  ClassMember1_t01.staticTest();
  ClassMember1_t01.staticSetter = forgetType(t0Instance);
  ClassMember1_t01.staticGetter;

  // Test type parameters

  //# <-- NotGenericFunctionType
  ClassMember2_t01<X?> c2 = new ClassMember2_t01<X?>();
  c2 = new ClassMember2_t01<X?>.short(forgetType(t0Instance),
  forgetType(t0Instance));
  c2 = new ClassMember2_t01<X?>.named(forgetType(t0Instance));
  c2.m = forgetType(t0Instance);
  c2.test(forgetType(t0Instance));
  c2.getter;
  //# -->
}