Module Logtk.Flex_state

Extensible Map for State

type t
val empty : t
type 'a key
val create_key : unit -> 'a key
val add : 'a key -> 'a -> t -> t
val get : 'a key -> t -> 'a option
val get_exn : 'a key -> t -> 'a
raises Not_found

if the key is not present

val get_or : or_:'a -> 'a key -> t -> 'a