|  | library test; | 
|  | import self as self; | 
|  | import "dart:core" as core; | 
|  |  | 
|  | class A extends core::Object { | 
|  | field self::B b = null; | 
|  | default constructor •() → void | 
|  | : super core::Object::•() | 
|  | ; | 
|  | } | 
|  | class B extends core::Object { | 
|  | field self::C c = null; | 
|  | default constructor •() → void | 
|  | : super core::Object::•() | 
|  | ; | 
|  | } | 
|  | class C extends core::Object { | 
|  | default constructor •() → void | 
|  | : super core::Object::•() | 
|  | ; | 
|  | } | 
|  | class D extends self::C { | 
|  | default constructor •() → void | 
|  | : super self::C::•() | 
|  | ; | 
|  | } | 
|  | static field dynamic a = new self::A::•(); | 
|  | static field dynamic x = self::a.b.c; | 
|  | static field dynamic y = let final dynamic #t1 = self::a.b in let final dynamic #t2 = #t1.c in #t2.==(null) ? #t1.c = new self::D::•() : #t2; | 
|  | static method main() → dynamic {} |