(module)

(ann-class java.lang.String)

(ann-class java.io.PrintStream
           methods
           (: println (-> [java.lang.String] Void)))

(ann-class java.lang.System
           fields
           (: out java.io.PrintStream))

(defclass Tagged [[java.lang.String tag] [java.lang.Object data]])

(definterface Function
  (: apply (-> [java.lang.Object] java.lang.Object)))

#( (ann id #type (All [x] (-> [x] x))) )#
(def (id x)
  x)

(def (main args)
  (if true
    (_. (_.. java.lang.System out) (println (id "YOLO")))
    (_. (_.. java.lang.System out) (println "FALSE"))))