Module Ref.Map

Module reference maps.

include Stdlib.Map.S with type key = t
type key = t
type !+'a t
val empty : 'a t
val is_empty : 'a t -> bool
val mem : key -> 'a t -> bool
val add : key -> 'a -> 'a t -> 'a t
val update : key -> ('a option -> 'a option) -> 'a t -> 'a t
val singleton : key -> 'a -> 'a t
val remove : key -> 'a t -> 'a t
val merge : (key -> 'a option -> 'b option -> 'c option) -> 'a t -> 'b t -> 'c t
val union : (key -> 'a -> 'a -> 'a option) -> 'a t -> 'a t -> 'a t
val compare : ('a -> 'a -> int) -> 'a t -> 'a t -> int
val equal : ('a -> 'a -> bool) -> 'a t -> 'a t -> bool
val iter : (key -> 'a -> unit) -> 'a t -> unit
val fold : (key -> 'a -> 'b -> 'b) -> 'a t -> 'b -> 'b
val for_all : (key -> 'a -> bool) -> 'a t -> bool
val exists : (key -> 'a -> bool) -> 'a t -> bool
val filter : (key -> 'a -> bool) -> 'a t -> 'a t
val filter_map : (key -> 'a -> 'b option) -> 'a t -> 'b t
val partition : (key -> 'a -> bool) -> 'a t -> 'a t * 'a t
val cardinal : 'a t -> int
val bindings : 'a t -> (key * 'a) list
val min_binding : 'a t -> key * 'a
val min_binding_opt : 'a t -> (key * 'a) option
val max_binding : 'a t -> key * 'a
val max_binding_opt : 'a t -> (key * 'a) option
val choose : 'a t -> key * 'a
val choose_opt : 'a t -> (key * 'a) option
val split : key -> 'a t -> 'a t * 'a option * 'a t
val find : key -> 'a t -> 'a
val find_opt : key -> 'a t -> 'a option
val find_first : (key -> bool) -> 'a t -> key * 'a
val find_first_opt : (key -> bool) -> 'a t -> (key * 'a) option
val find_last : (key -> bool) -> 'a t -> key * 'a
val find_last_opt : (key -> bool) -> 'a t -> (key * 'a) option
val map : ('a -> 'b) -> 'a t -> 'b t
val mapi : (key -> 'a -> 'b) -> 'a t -> 'b t
val to_seq : 'a t -> (key * 'a) Stdlib.Seq.t
val to_rev_seq : 'a t -> (key * 'a) Stdlib.Seq.t
val to_seq_from : key -> 'a t -> (key * 'a) Stdlib.Seq.t
val add_seq : (key * 'a) Stdlib.Seq.t -> 'a t -> 'a t
val of_seq : (key * 'a) Stdlib.Seq.t -> 'a t
val dom : 'a t -> Set.t

dom m is the domain of m.

val of_list : (key * 'a) list -> 'a t

of_list bs is List.fold_left (fun m (k, v) -> add k v m) empty bs.

Additional adds

val add_to_list : key -> 'a -> 'a list t -> 'a list t

add k v m is m with k mapping to l such that l is v :: find k m if k was bound in m and [v] otherwise.

val add_to_set : (module B0_std.Stdlib_set.S with type elt = 'a and type t = 'set) -> key -> 'a -> 'set t -> 'set t

add (module S) k v m is m with k mapping to s such that s is S.add v (find k m) if k was bound in m and S.singleton [v] otherwise.

Formatting

val pp : ?sep:unit B0_std.Fmt.t -> (key * 'a) B0_std.Fmt.t -> 'a t B0_std.Fmt.t

pp ~sep pp_binding ppf m formats the bindings of m on ppf. Each binding is formatted with pp_binding and bindings are separated by sep (defaults to Format.pp_print_cut). If the map is empty leaves ppf untouched.

val dump : 'a B0_std.Fmt.t -> 'a t B0_std.Fmt.t

dump pp_v ppf m prints an unspecified representation of m on ppf using pp_v to print the map codomain elements.