library;
import self as self;
import "dart:core" as core;

class Foo extends core::Object {
  synthetic constructor •() → self::Foo*
    : super core::Object::•()
    ;
  abstract member-signature get _identityHashCode() → core::int*;
  abstract member-signature method _instanceOf(dynamic instantiatorTypeArguments, dynamic functionTypeArguments, dynamic type) → core::bool*;
  abstract member-signature method _simpleInstanceOf(dynamic type) → core::bool*;
  abstract member-signature method _simpleInstanceOfTrue(dynamic type) → core::bool*;
  abstract member-signature method _simpleInstanceOfFalse(dynamic type) → core::bool*;
  abstract member-signature operator ==(dynamic other) → core::bool*;
  abstract member-signature get hashCode() → core::int*;
  abstract member-signature method toString() → core::String*;
  abstract member-signature method noSuchMethod(core::Invocation* invocation) → dynamic;
  abstract member-signature get runtimeType() → core::Type*;
}
class Bar extends self::Foo {
  synthetic constructor •() → self::Bar*
    : super self::Foo::•()
    ;
}
class Base extends core::Object {
  synthetic constructor •() → self::Base*
    : super core::Object::•()
    ;
  method method() → self::Foo* {
    return new self::Foo::•();
  }
  abstract member-signature get _identityHashCode() → core::int*;
  abstract member-signature method _instanceOf(dynamic instantiatorTypeArguments, dynamic functionTypeArguments, dynamic type) → core::bool*;
  abstract member-signature method _simpleInstanceOf(dynamic type) → core::bool*;
  abstract member-signature method _simpleInstanceOfTrue(dynamic type) → core::bool*;
  abstract member-signature method _simpleInstanceOfFalse(dynamic type) → core::bool*;
  abstract member-signature operator ==(dynamic other) → core::bool*;
  abstract member-signature get hashCode() → core::int*;
  abstract member-signature method toString() → core::String*;
  abstract member-signature method noSuchMethod(core::Invocation* invocation) → dynamic;
  abstract member-signature get runtimeType() → core::Type*;
}
class Sub extends self::Base {
  synthetic constructor •() → self::Sub*
    : super self::Base::•()
    ;
  method method() → self::Foo* {
    return new self::Bar::•();
  }
}
static method main(core::List<core::String*>* args) → dynamic {
  self::Base* object = args.{core::List::length}.{core::num::==}(0) ?{self::Base*} new self::Base::•() : new self::Sub::•();
  self::Foo* a = object.{self::Base::method}();
  core::print(a);
}