// 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 there is i in 0...n such that
/// Si[Z0/Y0, ..., Zk/Yk] is not subtype of Vi[Z0/X0, ..., Zk/Xk], 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
/// @author sgrekhov@unipro.ru
///
/// This test is generated from named_function_types_fail_A21.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.


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

class U0 extends U1 {}
class U1 {}
class V0 {}
class V1 {}
class V2 {}
class V3 {}
class V4 {}
class S0 extends V0 {}
class S1 {}
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}); // S1 is not subtype of V1

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(dynamic val) {
    s = val;
  }

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

  static set staticSetter(dynamic val) {
    s = val;
  }

  static T1 get staticGetter => forgetType(t0Instance);
}

class ClassMemberTestPublic {
  T1 m = t1Default;

  ClassMemberTestPublic(dynamic val) {
    m = val;
  }

  ClassMemberTestPublic.short(this.m);

  ClassMemberTestPublic.validConstructor() {}

  test(dynamic val) {
    m = val;
  }

  set setter(dynamic val) {
    m = val;
  }

  T1 get getter => forgetType(t0Instance);
}

class ClassMemberTestPrivate {
  T1 _m = t1Default;

  ClassMemberTestPrivate(dynamic val) {
    _m = val;
  }

  ClassMemberTestPrivate.short(this._m);

  ClassMemberTestPrivate.validConstructor() {}

  test(dynamic val) {
    _m = val;
  }

  set setter(dynamic val) {
    _m = val;
  }
}

class ClassMemberTestInitFail {
  static T1 s = forgetType(t0Instance);
  T1 m = forgetType(t0Instance);
}

class ClassMemberTestGenericPublic<X> {
  X m;

  ClassMemberTestGenericPublic(dynamic val): m = val {
  }

  ClassMemberTestGenericPublic.short(this.m);

  test(dynamic val) {
    m = val;
  }

  set setter(dynamic val) {
    m = val;
  }

  X get getter => forgetType(t0Instance);
}

class ClassMemberTestGenericPrivate<X> {
  X _m;

  ClassMemberTestGenericPrivate(dynamic val): _m = val {
  }

  ClassMemberTestGenericPrivate.short(this._m);

  test(dynamic val) {
    _m = val;
  }

  set setter(dynamic val) {
    _m = val;
  }
}


main() {

  // Test initialization
  Expect.throws(() {ClassMemberTestInitFail.s;}, (e) => e is TypeError || e is CastError);
  Expect.throws(() {new ClassMemberTestInitFail();}, (e) => e is TypeError || e is CastError);

  // Test constructors
  Expect.throws(() {
    new ClassMemberTestPublic(t0Instance);
  }, (e) => e is TypeError || e is CastError);

  Expect.throws(() {
    new ClassMemberTestPublic.short(forgetType(t0Instance));
  }, (e) => e is TypeError || e is CastError);

  Expect.throws(() {
    new ClassMemberTestPrivate(t0Instance);
  }, (e) => e is TypeError || e is CastError);

  Expect.throws(() {
    new ClassMemberTestPrivate.short(forgetType(t0Instance));
  }, (e) => e is TypeError || e is CastError);

  // Test class variables
  Expect.throws(() {
    new ClassMemberTestPublic(t1Instance).m = forgetType(t0Instance);
  }, (e) => e is TypeError || e is CastError);

  // Test setters
  Expect.throws(() {
    new ClassMemberTestPublic(t1Instance).setter = t0Instance;
  }, (e) => e is TypeError || e is CastError);

  Expect.throws(() {
    new ClassMemberTestPrivate(t1Instance).setter = t0Instance;
  }, (e) => e is TypeError || e is CastError);

  // Test methods
  Expect.throws(() {
    new ClassMemberTestPublic(t1Instance).test(t0Instance);
  }, (e) => e is TypeError || e is CastError);

  Expect.throws(() {
    new ClassMemberTestPrivate(t1Instance).test(t0Instance);
  }, (e) => e is TypeError || e is CastError);

  // Test getters
  Expect.throws(() {
    new ClassMemberTestPublic(t1Instance).getter;
  }, (e) => e is TypeError || e is CastError);


  // Test static stuff
  Expect.throws(() {
    new ClassMemberTestStatic(t0Instance);
  }, (e) => e is TypeError || e is CastError);

  Expect.throws(() {
    ClassMemberTestStatic.staticSetter = t0Instance;
  }, (e) => e is TypeError || e is CastError);

  Expect.throws(() {
    ClassMemberTestStatic.staticGetter;
  }, (e) => e is TypeError || e is CastError);

  Expect.throws(() {
    ClassMemberTestStatic.staticTest();
  }, (e) => e is TypeError || e is CastError);

  // Test type parameters

}