Module Moption
A Moption
is a mutable option, like 'a option ref
, but with a more efficient implementation; in particular, set_some
does not allocate.
type 'a t
val create : unit -> _ t
val is_none : _ t -> bool
val is_some : _ t -> bool
val get : 'a t -> 'a option
val get_some_exn : 'a t -> 'a
val unsafe_get : 'a t -> 'a
Does not check that is_some
before unsafely accessing the stored value
val set : 'a t -> 'a option -> unit
val set_none : _ t -> unit
val set_some : 'a t -> 'a -> unit