23 lines
454 B
OCaml
23 lines
454 B
OCaml
module type KEY_INFO = sig
|
|
type 'a t
|
|
end
|
|
|
|
module Make (Key_info : KEY_INFO) : sig
|
|
type t = private ..
|
|
type 'a key = 'a Key_info.t
|
|
|
|
module type WITNESS = sig
|
|
type a
|
|
type t += T of a
|
|
|
|
val key : a key
|
|
end
|
|
|
|
type 'a witness = (module WITNESS with type a = 'a)
|
|
type pack = Key : 'a key -> pack
|
|
type value = Value : 'a * 'a key -> value
|
|
|
|
val inj : 'a key -> 'a witness
|
|
val prj : t -> value
|
|
val bindings : unit -> pack list
|
|
end
|