library /*isNonNullableByDefault*/;
import self as self;
import "dart:core" as core;
import "package:expect/expect.dart" as exp;

import "package:expect/expect.dart";

class A<T extends core::Object? = dynamic> extends core::Object {
  static final field dynamic _redirecting# = <dynamic>[#C1]/*isLegacy*/;
  constructor empty() → self::A<self::A::T%>
    : super core::Object::•()
    ;
  static factory •<T extends core::Object? = dynamic>() → self::A<self::A::•::T%>
    return self::B::•<self::A::•::T%, core::num>();
}
class B<U extends core::Object? = dynamic, W extends core::Object? = dynamic> extends self::A<self::B::U%> {
  static final field dynamic _redirecting# = <dynamic>[#C2]/*isLegacy*/;
  constructor empty() → self::B<self::B::U%, self::B::W%>
    : super self::A::empty()
    ;
  static factory •<U extends core::Object? = dynamic, W extends core::Object? = dynamic>() → self::B<self::B::•::U%, self::B::•::W%>
    return new self::C::•<self::B::•::U%, self::B::•::W%, core::String>();
}
class C<V extends core::Object? = dynamic, S extends core::Object? = dynamic, R extends core::Object? = dynamic> extends self::B<self::C::V%, self::C::S%> {
  constructor •() → self::C<self::C::V%, self::C::S%, self::C::R%>
    : super self::B::empty()
    ;
  method toString() → core::String
    return "${self::C::V%},${self::C::S%},${self::C::R%}";
}
static method main() → dynamic {
  exp::Expect::equals("${new self::C::•<core::int, core::num, core::String>()}", "int,num,String");
}

constants  {
  #C1 = constructor-tearoff self::A::•
  #C2 = constructor-tearoff self::B::•
}