library test;
//
// Problems in library:
//
// pkg/front_end/testcases/runtime_checks_new/contravariant_getter_return_compound_assign.dart:20:54: Error: A value of type 'B<num>' can't be assigned to a variable of type 'B<void Function(num)>'.
//  - 'B' is from 'pkg/front_end/testcases/runtime_checks_new/contravariant_getter_return_compound_assign.dart'.
//   c. /*@ checkReturn=B<(num*) ->* void>* */ x += new B<num>();
//                                                      ^
//
// pkg/front_end/testcases/runtime_checks_new/contravariant_getter_return_compound_assign.dart:21:62: Error: A value of type 'B<num>' can't be assigned to a variable of type 'B<void Function(num)>'.
//  - 'B' is from 'pkg/front_end/testcases/runtime_checks_new/contravariant_getter_return_compound_assign.dart'.
//   var y = c. /*@ checkReturn=B<(num*) ->* void>* */ x += new B<num>();
//                                                              ^
//
// pkg/front_end/testcases/runtime_checks_new/contravariant_getter_return_compound_assign.dart:22:55: Error: A value of type 'B<num>' can't be assigned to a variable of type 'B<void Function(num)>'.
//  - 'B' is from 'pkg/front_end/testcases/runtime_checks_new/contravariant_getter_return_compound_assign.dart'.
//   c. /*@ checkReturn=B<(num*) ->* void>* */ x ??= new B<num>();
//                                                       ^
//
// pkg/front_end/testcases/runtime_checks_new/contravariant_getter_return_compound_assign.dart:23:63: Error: A value of type 'B<num>' can't be assigned to a variable of type 'B<void Function(num)>'.
//  - 'B' is from 'pkg/front_end/testcases/runtime_checks_new/contravariant_getter_return_compound_assign.dart'.
//   var z = c. /*@ checkReturn=B<(num*) ->* void>* */ x ??= new B<num>();
//                                                               ^
//
import self as self;
import "dart:core" as core;

typedef F<contravariant T extends core::Object* = dynamic> = (T*) →* void;
class B<T extends core::Object* = dynamic> extends core::Object {
  synthetic constructor •() → self::B<self::B::T*>*
    : super core::Object::•()
    ;
  operator +(covariant-by-class self::B<self::B::T*>* other) → self::B<self::B::T*>*
    return null;
  abstract member-signature get _identityHashCode() → core::int*; -> core::Object::_identityHashCode
  abstract member-signature method _instanceOf(dynamic instantiatorTypeArguments, dynamic functionTypeArguments, dynamic type) → core::bool*; -> core::Object::_instanceOf
  abstract member-signature method _simpleInstanceOf(dynamic type) → core::bool*; -> core::Object::_simpleInstanceOf
  abstract member-signature method _simpleInstanceOfTrue(dynamic type) → core::bool*; -> core::Object::_simpleInstanceOfTrue
  abstract member-signature method _simpleInstanceOfFalse(dynamic type) → core::bool*; -> core::Object::_simpleInstanceOfFalse
  abstract member-signature operator ==(dynamic other) → core::bool*; -> core::Object::==
  abstract member-signature get hashCode() → core::int*; -> core::Object::hashCode
  abstract member-signature method toString() → core::String*; -> core::Object::toString
  abstract member-signature method noSuchMethod(core::Invocation* invocation) → dynamic; -> core::Object::noSuchMethod
  abstract member-signature get runtimeType() → core::Type*; -> core::Object::runtimeType
}
class C<T extends core::Object* = dynamic> extends core::Object {
  synthetic constructor •() → self::C<self::C::T*>*
    : super core::Object::•()
    ;
  get x() → self::B<(self::C::T*) →* void>*
    return null;
  set x(self::B<(self::C::T*) →* void>* value) → void {}
  abstract member-signature get _identityHashCode() → core::int*; -> core::Object::_identityHashCode
  abstract member-signature method _instanceOf(dynamic instantiatorTypeArguments, dynamic functionTypeArguments, dynamic type) → core::bool*; -> core::Object::_instanceOf
  abstract member-signature method _simpleInstanceOf(dynamic type) → core::bool*; -> core::Object::_simpleInstanceOf
  abstract member-signature method _simpleInstanceOfTrue(dynamic type) → core::bool*; -> core::Object::_simpleInstanceOfTrue
  abstract member-signature method _simpleInstanceOfFalse(dynamic type) → core::bool*; -> core::Object::_simpleInstanceOfFalse
  abstract member-signature operator ==(dynamic other) → core::bool*; -> core::Object::==
  abstract member-signature get hashCode() → core::int*; -> core::Object::hashCode
  abstract member-signature method toString() → core::String*; -> core::Object::toString
  abstract member-signature method noSuchMethod(core::Invocation* invocation) → dynamic; -> core::Object::noSuchMethod
  abstract member-signature get runtimeType() → core::Type*; -> core::Object::runtimeType
}
static method test(self::C<core::num*>* c) → void {
  let final self::C<core::num*>* #t1 = c in #t1.{self::C::x} = (#t1.{self::C::x}{self::B<(core::num*) →* void>*} as{TypeError,CovarianceCheck} self::B<(core::num*) →* void>*).{self::B::+}(invalid-expression "pkg/front_end/testcases/runtime_checks_new/contravariant_getter_return_compound_assign.dart:20:54: Error: A value of type 'B<num>' can't be assigned to a variable of type 'B<void Function(num)>'.
 - 'B' is from 'pkg/front_end/testcases/runtime_checks_new/contravariant_getter_return_compound_assign.dart'.
  c. /*@ checkReturn=B<(num*) ->* void>* */ x += new B<num>();
                                                     ^" in new self::B::•<core::num*>() as{TypeError} self::B<(core::num*) →* void>*){(self::B<(core::num*) →* void>*) →* self::B<(core::num*) →* void>*};
  self::B<(core::num*) →* void>* y = let final self::C<core::num*>* #t2 = c in #t2.{self::C::x} = (#t2.{self::C::x}{self::B<(core::num*) →* void>*} as{TypeError,CovarianceCheck} self::B<(core::num*) →* void>*).{self::B::+}(invalid-expression "pkg/front_end/testcases/runtime_checks_new/contravariant_getter_return_compound_assign.dart:21:62: Error: A value of type 'B<num>' can't be assigned to a variable of type 'B<void Function(num)>'.
 - 'B' is from 'pkg/front_end/testcases/runtime_checks_new/contravariant_getter_return_compound_assign.dart'.
  var y = c. /*@ checkReturn=B<(num*) ->* void>* */ x += new B<num>();
                                                             ^" in new self::B::•<core::num*>() as{TypeError} self::B<(core::num*) →* void>*){(self::B<(core::num*) →* void>*) →* self::B<(core::num*) →* void>*};
  let final self::C<core::num*>* #t3 = c in #t3.{self::C::x}{self::B<(core::num*) →* void>*} as{TypeError,CovarianceCheck} self::B<(core::num*) →* void>* == null ?{self::B<core::Object*>*} #t3.{self::C::x} = invalid-expression "pkg/front_end/testcases/runtime_checks_new/contravariant_getter_return_compound_assign.dart:22:55: Error: A value of type 'B<num>' can't be assigned to a variable of type 'B<void Function(num)>'.
 - 'B' is from 'pkg/front_end/testcases/runtime_checks_new/contravariant_getter_return_compound_assign.dart'.
  c. /*@ checkReturn=B<(num*) ->* void>* */ x ??= new B<num>();
                                                      ^" in new self::B::•<core::num*>() as{TypeError} self::B<(core::num*) →* void>* : null;
  self::B<core::Object*>* z = let final self::C<core::num*>* #t4 = c in let final self::B<(core::num*) →* void>* #t5 = #t4.{self::C::x}{self::B<(core::num*) →* void>*} as{TypeError,CovarianceCheck} self::B<(core::num*) →* void>* in #t5 == null ?{self::B<core::Object*>*} #t4.{self::C::x} = invalid-expression "pkg/front_end/testcases/runtime_checks_new/contravariant_getter_return_compound_assign.dart:23:63: Error: A value of type 'B<num>' can't be assigned to a variable of type 'B<void Function(num)>'.
 - 'B' is from 'pkg/front_end/testcases/runtime_checks_new/contravariant_getter_return_compound_assign.dart'.
  var z = c. /*@ checkReturn=B<(num*) ->* void>* */ x ??= new B<num>();
                                                              ^" in new self::B::•<core::num*>() as{TypeError} self::B<(core::num*) →* void>* : #t5;
}
static method main() → dynamic {}