Module Weak_hashtbl

module Weak_hashtbl: Weak_hashtbl

module Box: sig .. end

Weak_hashtbl requires that all values in the table be boxed, which ensures that weak pointers and finalization work as expected.

type ('a, 'b) t

val create : 'a Core.Std.Hashtbl.Hashable.t -> ('a, 'b) t

val find : ('a, 'b) t -> 'a -> 'b option

val find_or_add : ('a, 'b) t ->
       'a -> default:(unit -> 'b Box.t) -> 'b

val remove : ('a, 'b) t -> 'a -> unit

val replace : ('a, 'b) t -> key:'a -> data:'b Box.t -> unit