library test;
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*>*
    ;
  operator +(generic-covariant-impl self::B<self::B::T*>* other) → self::B<self::B::T*>*
    ;
}
class C<T extends core::Object* = dynamic> extends core::Object {
  synthetic constructor •() → self::C<self::C::T*>*
    ;
  operator [](core::int* i) → self::B<(self::C::T*) →* void>*
    ;
  operator []=(core::int* i, self::B<(self::C::T*) →* void>* x) → void
    ;
}
static method test(self::C<core::num*>* c) → void
  ;
static method main() → dynamic
  ;