// 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 A type T0 is a subtype of a type T1 (written T0 <: T1) when:
/// Positional Function Types: T0 is U0 Function<X0 extends B00, ... ,
/// Xk extends B0k>(V0 x0, ..., Vn xn, [Vn+1 xn+1, ..., Vm xm])
///
///  and T1 is U1 Function<Y0 extends B10, ..., Yk extends B1k>(S0 y0, ...,
///  Sp yp, [Sp+1 yp+1, ..., Sq yq])
///  and p >= n
///  and m >= q
///  and Si[Z0/Y0, ..., Zk/Yk] <: Vi[Z0/X0, ..., Zk/Xk] for i in 0...q
///  and U0[Z0/X0, ..., Zk/Xk] <: U1[Z0/Y0, ..., Zk/Yk]
///  and B0i[Z0/X0, ..., Zk/Xk] === B1i[Z0/Y0, ..., Zk/Yk] for i in 0...k
///  where the Zi are fresh type variables with bounds B0i[Z0/X0, ..., Zk/Xk]
///
/// @description Check that if T0 isn't a subtype of T1 if
/// B0i[Z0/X0, ..., Zk/Xk] !== B1i[Z0/Y0, ..., Zk/Yk] for i in 0...k.
/// @author sgrekhov@unipro.ru
/// @author ngl@unipro.ru
///
/// @description Check that if type T0 not a subtype of a type T1, then it cannot
/// be used as a class member of type T1. Assignment to static and instance class
/// variables is tested.
/// @author sgrekhov@unipro.ru
/// @author ngl@unipro.ru
///
/// This test is generated from positional_function_types_fail_A31.dart and 
/// class_member_fail_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.


class U0 extends U1 {}

class U1 {}

class B0 {}

class B1 {}

class V0 {}

class V1 {}

class V2 {}

class V3 {}

class V4 {}

class S0 extends V0 {}

class S1 extends V1 {}

class S2 extends V2 {}

class S3 extends V3 {}

typedef T0 = U0 Function<X extends B0, Y extends B1>(V0 x0, V1 x1,
    [V2? x2, V3? x3, V4? x4]);
typedef T1 = U1 Function<X extends B0, Y extends B0>(S0 y0, S1 y1,
    [S2? x2, S3? x3]); //  Y extends B0, not B1

U0 t0Func<X extends B0, Y extends B1>(V0 x0, V1 x1, [V2? x2, V3? x3, V4? x4]) =>
    new U0();
U1 t1Func<X extends B0, Y extends B0>(S0 y0, S1 y1, [S2? x2, S3? x3]) => new U1();

T0 t0Instance = t0Func;
T1 t1Instance = t1Func;
const t1Default = t1Func;


class ClassMemberTestStatic {
  static T1 s = t1Default;

  ClassMemberTestStatic(T0 val) {
    s = val;
//      ^^^
// [analyzer] unspecified
// [cfe] unspecified
  }

  static staticTest() {
    s = t0Instance;
//      ^^^^^^^^^^
// [analyzer] unspecified
// [cfe] unspecified
  }

  static set staticSetter(T0 val) {
    s = val;
//      ^^^
// [analyzer] unspecified
// [cfe] unspecified
  }

  static T1 get staticGetter => t0Instance;
//                               ^^^^^^^^^^
// [analyzer] unspecified
// [cfe] unspecified
}

class ClassMemberTestPublic {
  T1 m = t1Default;

  ClassMemberTestPublic(T0 val) {
    m = val;
//      ^^^
// [analyzer] unspecified
// [cfe] unspecified
  }

  ClassMemberTestPublic.short(this.m);

  ClassMemberTestPublic.validConstructor() {}

  test(T0 val) {
    m = val;
//      ^^^
// [analyzer] unspecified
// [cfe] unspecified
  }

  set setter(T0 val) {
    m = val;
//      ^^^
// [analyzer] unspecified
// [cfe] unspecified
  }

  T1 get getter => t0Instance;
//                  ^^^^^^^^^^
// [analyzer] unspecified
// [cfe] unspecified
}

class ClassMemberTestPrivate {
  T1 _m = t1Default;

  ClassMemberTestPrivate(T0 val) {
    _m = val;
//       ^^^
// [analyzer] unspecified
// [cfe] unspecified
  }

  ClassMemberTestPrivate.short(this._m);

  ClassMemberTestPrivate.validConstructor() {}

  test(T0 val) {
    _m = val;
//       ^^^
// [analyzer] unspecified
// [cfe] unspecified
  }

  set setter(T0 val) {
    _m = val;
//       ^^^
// [analyzer] unspecified
// [cfe] unspecified
  }
}

class ClassMemberTestInitFail {
  static T1 s = t0Instance;
//               ^^^^^^^^^^
// [analyzer] unspecified
// [cfe] unspecified
  T1 m = t0Instance;
//        ^^^^^^^^^^
// [analyzer] unspecified
// [cfe] unspecified
}

main() {
  new ClassMemberTestPublic.validConstructor().m = t0Instance;
//                                                 ^^^^^^^^^^
// [analyzer] unspecified
// [cfe] unspecified
}