foldable.ml1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68module Make_list (M : Intf.Core) : Intf.Foldable with type 'a t = 'a list and type 'a m := 'a M.t = struct type 'a t = 'a list let fold f acc m = let open M.Infix in List.fold_left (fun acc elt -> let* acc = acc in f acc elt) (return acc) m let iter f m = let open M.Infix in List.fold_left (fun acc elt -> let* () = acc in f elt) (return ()) m end module Make_seq (M : Intf.Core) : Intf.Foldable with type 'a t = 'a Seq.t and type 'a m := 'a M.t = struct type 'a t = 'a Seq.t let fold f acc m = let open M.Infix in Seq.fold_left (fun acc elt -> let* acc = acc in f acc elt) (return acc) m let iter f m = let open M.Infix in Seq.fold_left (fun acc elt -> let* () = acc in f elt) (return ()) m end module Make_array (M : Intf.Core) : Intf.Foldable with type 'a t = 'a array and type 'a m := 'a M.t = struct type 'a t = 'a array let fold f acc m = let open M.Infix in Array.fold_left (fun acc elt -> let* acc = acc in f acc elt) (return acc) m let iter f m = let open M.Infix in Array.fold_left (fun acc elt -> let* () = acc in f elt) (return ()) m end