module Wdecl:Weakhtbl.S
with type key = decl
type
key
type 'a
t
val create : int -> 'a t
val clear : 'a t -> unit
val copy : 'a t -> 'a t
val find : 'a t -> key -> 'a
val mem : 'a t -> key -> bool
val set : 'a t -> key -> 'a -> unit
val remove : 'a t -> key -> unit
val length : 'a t -> int
val memoize : int -> (key -> 'a) -> key -> 'a
val memoize_rec : int ->
((key -> 'a) -> key -> 'a) -> key -> 'a
val memoize_option : int -> (key option -> 'a) -> key option -> 'a