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 +(generic-covariant-impl self::B<self::B::T*>* other) → self::B<self::B::T*>*
    return null;
}
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 {}
}
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} as{TypeError,CovarianceCheck} self::B<(core::num*) →* void>*).{self::B::+}(let final<BottomType> #t2 = 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>* y = let final self::C<core::num*>* #t3 = c in #t3.{self::C::x} = (#t3.{self::C::x} as{TypeError,CovarianceCheck} self::B<(core::num*) →* void>*).{self::B::+}(let final<BottomType> #t4 = 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>*);
  let final self::C<core::num*>* #t5 = c in (#t5.{self::C::x} as{TypeError,CovarianceCheck} self::B<(core::num*) →* void>*).{core::Object::==}(null) ?{self::B<core::Object*>*} #t5.{self::C::x} = let final<BottomType> #t6 = 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*>* #t7 = c in let final self::B<(core::num*) →* void>* #t8 = #t7.{self::C::x} as{TypeError,CovarianceCheck} self::B<(core::num*) →* void>* in #t8.{core::Object::==}(null) ?{self::B<core::Object*>*} #t7.{self::C::x} = let final<BottomType> #t9 = 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>* : #t8;
}
static method main() → dynamic {}