;; An index read is a read, and the escape check's clean list has to be a
;; list. A function value out of a slice is refused exactly as one out of a
;; Vec, a struct or a pointer is — the four are the same act and there is no
;; reason for a reader to have to remember which spellings were enumerated.
;;
;; Not reachable today: nothing can write an Fn into a slice, because every
;; position that would have to hold one is refused. It is here so that the
;; day one can, this is already true — the alternative was a default of
;; "clean" for anything the enumeration had not thought of, which is how a
;; closed list quietly stops being closed.
(defn leak [s [(Fn [] i32)]] (Fn [] i32) (at s 0))

(defn main [] i32 0)