// 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:
/// Named Function Types: T0 is U0 Function<X0 extends B00, ..., Xk extends B0k>
///   (T0 x0, ..., Tn xn, {Tn+1 xn+1, ..., Tm xm})
///
/// and T1 is U1 Function<Y0 extends B10, ..., Yk extends B1k>(S0 y0, ..., Sn yn,
/// {Sn+1 yn+1, ..., Sq yq})
/// and {yn+1, ... , yq} subsetof {xn+1, ... , xm}
/// and Si[Z0/Y0, ..., Zk/Yk] <: Vi[Z0/X0, ..., Zk/Xk] for i in 0...n
/// and Si[Z0/Y0, ..., Zk/Yk] <: Tj[Z0/X0, ..., Zk/Xk] for i in n+1...q, yj = xi
/// 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 U0[Z0/X0, ..., Zk/Xk] is not a subtype of
/// U1[Z0/Y0, ..., Zk/Yk], then T0 is not a subtype of T1
/// @author sgrekhov@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 named_function_types_fail_A41.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 {} // U0 is not subtype of U1
class U1 {}
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(V0 x0, V1 x1, {V2? x2, V3? x3, V4? x4});
typedef T1 = U1 Function(S0 y0, S1 y1, {S2? x2, S3? x3});

U0 t0Func(V0 x0, V1 x1, {V2? x2, V3? x3, V4? x4}) => new U0();
U1 t1Func(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
}