Module Id.Map

type key = t
type +'a t
val empty : 'a t
val is_empty : 'a t -> bool
val mem : 'a t -> key -> bool
val set : 'a t -> key -> 'a -> 'a t
val add : 'a t -> key -> 'a -> ('a t, 'a) Stdune.Result.t
val add_exn : 'a t -> key -> 'a -> 'a t
val update : 'a t -> key -> f:('a option -> 'a option) -> 'a t
val singleton : key -> 'a -> 'a t
val remove : 'a t -> key -> 'a t
val add_multi : 'a list t -> key -> 'a -> 'a list t
val merge : 'a t -> 'b t -> f:(key -> 'a option -> 'b option -> 'c option) -> 'c t
val union : 'a t -> 'a t -> f:(key -> 'a -> 'a -> 'a option) -> 'a t
val union_all : 'a t list -> f:(key -> 'a -> 'a -> 'a option) -> 'a t
val union_exn : 'a t -> 'a t -> 'a t

Like union but raises a code error if a key appears in both maps.

val superpose : 'a t -> 'a t -> 'a t

superpose a b is a augmented with bindings of b that are not in a.

val compare : 'a t -> 'a t -> compare:('a -> 'a -> Ordering.t) -> Ordering.t
val equal : 'a t -> 'a t -> equal:('a -> 'a -> bool) -> bool
val iter : 'a t -> f:('a -> unit) -> unit
val iteri : 'a t -> f:(key -> 'a -> unit) -> unit
val iter2 : 'a t -> 'b t -> f:(key -> 'a option -> 'b option -> unit) -> unit
val fold : 'a t -> init:'b -> f:('a -> 'b -> 'b) -> 'b
val foldi : 'a t -> init:'b -> f:(key -> 'a -> 'b -> 'b) -> 'b
val for_all : 'a t -> f:('a -> bool) -> bool
val for_alli : 'a t -> f:(key -> 'a -> bool) -> bool
val exists : 'a t -> f:('a -> bool) -> bool
val existsi : 'a t -> f:(key -> 'a -> bool) -> bool
val filter : 'a t -> f:('a -> bool) -> 'a t
val filteri : 'a t -> f:(key -> 'a -> bool) -> 'a t
val partition : 'a t -> f:('a -> bool) -> 'a t * 'a t
val partition_map : 'a t -> f:('a -> ('x, 'y) Stdune.Either.t) -> 'x t * 'y t
val partitioni : 'a t -> f:(key -> 'a -> bool) -> 'a t * 'a t
val cardinal : 'a t -> int
val to_list : 'a t -> (key * 'a) list
val to_list_map : 'a t -> f:(key -> 'a -> 'b) -> 'b list
val of_list : (key * 'a) list -> ('a t, key * 'a * 'a) Stdune.Result.t
val of_list_map : 'a list -> f:('a -> key * 'b) -> ('b t, key * 'a * 'a) Stdune.Result.t
val of_list_map_exn : 'a list -> f:('a -> key * 'b) -> 'b t
val of_list_exn : (key * 'a) list -> 'a t
val of_list_multi : (key * 'a) list -> 'a list t
val of_list_reduce : (key * 'a) list -> f:('a -> 'a -> 'a) -> 'a t
val of_list_reducei : (key * 'a) list -> f:(key -> 'a -> 'a -> 'a) -> 'a t
val of_list_unit : key list -> unit t
val of_list_fold : (key * 'a) list -> init:'b -> f:('b -> 'a -> 'b) -> 'b t

Return a map of (k, v) bindings such that:

  v = f init @@ f v1 @@ fv2 @@ ... @@ f vn

where v1, v2, ... vn are the values associated to k in the input list, in the order in which they appear. This is essentially a more efficient version of:

  of_list_multi l |> map ~f:(List.fold_left ~init ~f)
val keys : 'a t -> key list
val values : 'a t -> 'a list
val min_binding : 'a t -> (key * 'a) option
val max_binding : 'a t -> (key * 'a) option
val choose : 'a t -> (key * 'a) option
val split : 'a t -> key -> 'a t * 'a option * 'a t
val find : 'a t -> key -> 'a option
val find_exn : 'a t -> key -> 'a
val find_key : 'a t -> f:(key -> bool) -> key option
val map : 'a t -> f:('a -> 'b) -> 'b t
val mapi : 'a t -> f:(key -> 'a -> 'b) -> 'b t
val fold_mapi : 'a t -> init:'acc -> f:(key -> 'acc -> 'a -> 'acc * 'b) -> 'acc * 'b t
val filter_map : 'a t -> f:('a -> 'b option) -> 'b t
val filter_mapi : 'a t -> f:(key -> 'a -> 'b option) -> 'b t
val filter_opt : 'a option t -> 'a t
val is_subset : 'a t -> of_:'b t -> f:('a -> of_:'b -> bool) -> bool

is_subset t ~of_ ~f is true iff all keys in t are in of_ and f is true for all keys that are in both.

val to_dyn : ('a -> Dyn.t) -> 'a t -> Dyn.t
val to_seq : 'a t -> (key * 'a) Stdune.Seq.t
module Multi : sig ... end