LanguageFeatures/Subtyping/dynamic/generated/left_nullable_fail_class_member_fail_A02_t03.dart

// 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 Nullable: if T0 is S0? then:
/// - T0 <: T1 iff S0 <: T1 and Null <: T1
/// @description Check that if type T0 is S0? and Null <: T1 but S0 is not
/// subtype T1 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 assigned to the mixin member of type T1
/// @author sgrekhov@unipro.ru
///
/// This test is generated from test_types/left_nullable_fail_A02.dart and 
/// test_cases/class_member_fail_x03.dart. Don't modify it! 
/// If you need to change this test, then change one of the files above and then 
/// run generator/generator.dart to regenerate the tests.

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

class T1 {
  const T1();
}
class S0 {
  const S0();
}

S0? t0Instance = new S0();
T1? t1Instance = new T1();

const t1Default = const T1();

class ClassMemberSuper1_t03 {
  T1? m = t1Default;

  void set superSetter(T1? val) {}
}

class ClassMember1_t03 extends Object with ClassMemberSuper1_t03 {

  test1() {
    m = forgetType(t0Instance);
  }

  test2() {
    superSetter = forgetType(t0Instance);
  }
}

class ClassMemberSuper2_t03<X> {
  X m;

  ClassMemberSuper2_t03(X x) : m = x {}

  void set superSetter(X val) {}
}

class ClassMember2_t03<X> extends ClassMemberSuper2_t03<X> {

  ClassMember2_t03(X x): super(x) {}

  test1() {
    m = forgetType(t0Instance);
  }

  test2() {
    superSetter = forgetType(t0Instance);
  }
}

main() {
  Expect.throws(() {
    new ClassMember1_t03().m = forgetType(t0Instance);
  }, (e) => e is TypeError);
  Expect.throws(() {
    new ClassMember1_t03().superSetter = forgetType(t0Instance);
  }, (e) => e is TypeError);
  Expect.throws(() {
    new ClassMember1_t03().test1();
  }, (e) => e is TypeError);
  Expect.throws(() {
    new ClassMember1_t03().test2();
  }, (e) => e is TypeError);

  // Test type parameters

  Expect.throws(() {
    new ClassMember2_t03<T1?>(t1Instance).m = forgetType(t0Instance);
  }, (e) => e is TypeError);
  Expect.throws(() {
    new ClassMember2_t03<T1?>(t1Instance).superSetter = forgetType(t0Instance);
  }, (e) => e is TypeError);
  Expect.throws(() {
    new ClassMember2_t03<T1?>(t1Instance).test1();
  }, (e) => e is TypeError);
  Expect.throws(() {
    new ClassMember2_t03<T1?>(t1Instance).test2();
  }, (e) => e is TypeError);
}