package irmin

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in-package search v0.2.0

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include module type of struct include Stdlib.Option end

type !'a t = 'a option =

val none : 'a option

val some : 'a -> 'a option

val value : 'a option -> default:'a -> 'a

val get : 'a option -> 'a

val bind : 'a option -> ('a -> 'b option) -> 'b option

val join : 'a option option -> 'a option

val map : ('a -> 'b) -> 'a option -> 'b option

val fold : none:'a -> some:('b -> 'a) -> 'b option -> 'a

val iter : ('a -> unit) -> 'a option -> unit

val is_none : 'a option -> bool

val is_some : 'a option -> bool

val equal : ('a -> 'a -> bool) -> 'a option -> 'a option -> bool

val compare : ('a -> 'a -> int) -> 'a option -> 'a option -> int

val to_result : none:'e -> 'a option -> ('a, 'e) Stdlib.result

val to_list : 'a option -> 'a list

val to_seq : 'a option -> 'a Stdlib.Seq.t

val of_result : ('a, 'b) Stdlib.result -> 'c t

val might : 
  ('a -> (unit, 'b) Stdlib.result) ->
  'c t ->
  (unit, 'b) Stdlib.result