| library; |
| import self as self; |
| import "dart:core" as core; |
| |
| class A extends core::Object { |
| synthetic constructor •() → void |
| : super core::Object::•() |
| ; |
| } |
| class B extends self::A { |
| synthetic constructor •() → void |
| : super self::A::•() |
| ; |
| } |
| class C extends core::Object { |
| synthetic constructor •() → void |
| : super core::Object::•() |
| ; |
| method f1(self::A x) → void {} |
| method f2([self::A x = null]) → void {} |
| method f3({self::A x = null}) → void {} |
| method f4() → self::A {} |
| } |
| class D extends self::C { |
| synthetic constructor •() → void |
| : super self::C::•() |
| ; |
| method f1(core::Object x) → void {} |
| method f2([core::Object x = null]) → void {} |
| method f3({core::Object x = null}) → void {} |
| method f4() → self::B {} |
| } |
| class E extends self::C { |
| synthetic constructor •() → void |
| : super self::C::•() |
| ; |
| method f1(self::B x) → void {} |
| method f2([self::B x = null]) → void {} |
| method f3({self::B x = null}) → void {} |
| method f4() → core::Object {} |
| } |
| static method main() → dynamic {} |