@BEGIN_FROM_4_07_0@
include Ephemeron
@END_FROM_4_07_0@
@BEGIN_BEFORE_4_07_0@
module type S  =
  sig
    type key
    type 'a t
    val create : int -> 'a t
    val clear : 'a t -> unit
    val reset : 'a t -> unit
    val copy : 'a t -> 'a t
    val add : 'a t -> key -> 'a -> unit
    val remove : 'a t -> key -> unit
    val find : 'a t -> key -> 'a
    val find_opt : 'a t -> key -> 'a option
    val find_all : 'a t -> key -> 'a list
    val replace : 'a t -> key -> 'a -> unit
    val mem : 'a t -> key -> bool
    val iter : (key -> 'a -> unit) -> 'a t -> unit
    val filter_map_inplace : (key -> 'a -> 'a option) -> 'a t -> unit
    val fold : (key -> 'a -> 'b -> 'b) -> 'a t -> 'b -> 'b
    val length : 'a t -> int
    val stats : 'a t -> Stdcompat__hashtbl.statistics
    val to_seq : 'a t -> (key * 'a) Stdcompat__seq.t
    val to_seq_keys : 'a t -> key Stdcompat__seq.t
    val to_seq_values : 'a t -> 'a Stdcompat__seq.t
    val add_seq : 'a t -> (key * 'a) Stdcompat__seq.t -> unit
    val replace_seq : 'a t -> (key * 'a) Stdcompat__seq.t -> unit
    val of_seq : (key * 'a) Stdcompat__seq.t -> 'a t
    val clean : 'a t -> unit
    val stats_alive : 'a t -> Stdcompat__hashtbl.statistics
  end

module type SeededS  =
  sig
    type key
    type 'a t
    val create : ?random:bool -> int -> 'a t
    val clear : 'a t -> unit
    val reset : 'a t -> unit
    val copy : 'a t -> 'a t
    val add : 'a t -> key -> 'a -> unit
    val remove : 'a t -> key -> unit
    val find : 'a t -> key -> 'a
    val find_opt : 'a t -> key -> 'a option
    val find_all : 'a t -> key -> 'a list
    val replace : 'a t -> key -> 'a -> unit
    val mem : 'a t -> key -> bool
    val iter : (key -> 'a -> unit) -> 'a t -> unit
    val filter_map_inplace : (key -> 'a -> 'a option) -> 'a t -> unit
    val fold : (key -> 'a -> 'b -> 'b) -> 'a t -> 'b -> 'b
    val length : 'a t -> int
    val stats : 'a t -> Stdcompat__hashtbl.statistics
    val to_seq : 'a t -> (key * 'a) Stdcompat__seq.t
    val to_seq_keys : 'a t -> key Stdcompat__seq.t
    val to_seq_values : 'a t -> 'a Stdcompat__seq.t
    val add_seq : 'a t -> (key * 'a) Stdcompat__seq.t -> unit
    val replace_seq : 'a t -> (key * 'a) Stdcompat__seq.t -> unit
    val of_seq : (key * 'a) Stdcompat__seq.t -> 'a t
    val clean : 'a t -> unit
    val stats_alive : 'a t -> Stdcompat__hashtbl.statistics
  end

@BEGIN_FROM_4_04_0@
module K1 = struct
  type ('k, 'd) t = ('k, 'd) Ephemeron.K1.t
  let create = Ephemeron.K1.create
  let get_key = Ephemeron.K1.get_key
  let get_key_copy = Ephemeron.K1.get_key_copy
  let set_key = Ephemeron.K1.set_key
  let unset_key = Ephemeron.K1.unset_key
  let check_key = Ephemeron.K1.check_key
  let blit_key = Ephemeron.K1.blit_key
  let get_data = Ephemeron.K1.get_data
  let get_data_copy = Ephemeron.K1.get_data_copy
  let set_data = Ephemeron.K1.set_data
  let unset_data = Ephemeron.K1.unset_data
  let check_data = Ephemeron.K1.check_data
  let blit_data = Ephemeron.K1.blit_data

  module Make (H : Hashtbl.HashedType) = struct
    include Ephemeron.K1.Make (H)

@BEGIN_BEFORE_4_07_0@
@BEGIN_WITH_MAGIC@
    let to_seq = Stdcompat__hashtbl_ext.to_seq

    let to_seq_keys = Stdcompat__hashtbl_ext.to_seq_keys

    let to_seq_values = Stdcompat__hashtbl_ext.to_seq_values
@END_WITH_MAGIC@
@BEGIN_WITHOUT_MAGIC@
    let to_seq tbl = Stdcompat__hashtbl_ext.to_seq fold tbl

    let to_seq_keys tbl = Stdcompat__hashtbl_ext.to_seq_keys fold tbl

    let to_seq_values tbl = Stdcompat__hashtbl_ext.to_seq_values fold tbl
@END_WITHOUT_MAGIC@

    let add_seq tbl g = Stdcompat__hashtbl_ext.add_seq add tbl g

    let replace_seq tbl g = Stdcompat__hashtbl_ext.add_seq replace tbl g

    let of_seq g = Stdcompat__hashtbl_ext.of_seq ~create ~replace g
@END_BEFORE_4_07_0@

@BEGIN_BEFORE_4_05_0@
    let find_opt tbl key =
      Stdcompat__tools.option_find (find tbl) key
@END_BEFORE_4_05_0@
  end

  module MakeSeeded (H : Hashtbl.SeededHashedType) = struct
    include Ephemeron.K1.MakeSeeded (H)

@BEGIN_BEFORE_4_07_0@
@BEGIN_WITH_MAGIC@
    let to_seq = Stdcompat__hashtbl_ext.to_seq

    let to_seq_keys = Stdcompat__hashtbl_ext.to_seq_keys

    let to_seq_values = Stdcompat__hashtbl_ext.to_seq_values
@END_WITH_MAGIC@
@BEGIN_WITHOUT_MAGIC@
    let to_seq tbl = Stdcompat__hashtbl_ext.to_seq fold tbl

    let to_seq_keys tbl = Stdcompat__hashtbl_ext.to_seq_keys fold tbl

    let to_seq_values tbl = Stdcompat__hashtbl_ext.to_seq_values fold tbl
@END_WITHOUT_MAGIC@

    let add_seq tbl g = Stdcompat__hashtbl_ext.add_seq add tbl g

    let replace_seq tbl g = Stdcompat__hashtbl_ext.add_seq replace tbl g

    let of_seq g = Stdcompat__hashtbl_ext.of_seq ~create ~replace g
@END_BEFORE_4_07_0@

@BEGIN_BEFORE_4_05_0@
    let find_opt tbl key =
      Stdcompat__tools.option_find (find tbl) key
@END_BEFORE_4_05_0@
  end
end

module K2 = struct
  type ('k1, 'k2, 'd) t = ('k1, 'k2, 'd) Ephemeron.K2.t
  let create = Ephemeron.K2.create
  let get_key1 = Ephemeron.K2.get_key1
  let get_key1_copy = Ephemeron.K2.get_key1_copy
  let set_key1 = Ephemeron.K2.set_key1
  let unset_key1 = Ephemeron.K2.unset_key1
  let check_key1 = Ephemeron.K2.check_key1
  let get_key2 = Ephemeron.K2.get_key2
  let get_key2_copy = Ephemeron.K2.get_key2_copy
  let set_key2 = Ephemeron.K2.set_key2
  let unset_key2 = Ephemeron.K2.unset_key2
  let check_key2 = Ephemeron.K2.check_key2
  let blit_key1 = Ephemeron.K2.blit_key1
  let blit_key2 = Ephemeron.K2.blit_key2
  let blit_key12 = Ephemeron.K2.blit_key12
  let get_data = Ephemeron.K2.get_data
  let get_data_copy = Ephemeron.K2.get_data_copy
  let set_data = Ephemeron.K2.set_data
  let unset_data = Ephemeron.K2.unset_data
  let check_data = Ephemeron.K2.check_data
  let blit_data = Ephemeron.K2.blit_data

  module Make (H1 : Hashtbl.HashedType) (H2 : Hashtbl.HashedType) = struct
    include Ephemeron.K2.Make (H1) (H2)

@BEGIN_BEFORE_4_07_0@
@BEGIN_WITH_MAGIC@
    let to_seq = Stdcompat__hashtbl_ext.to_seq

    let to_seq_keys = Stdcompat__hashtbl_ext.to_seq_keys

    let to_seq_values = Stdcompat__hashtbl_ext.to_seq_values
@END_WITH_MAGIC@
@BEGIN_WITHOUT_MAGIC@
    let to_seq tbl = Stdcompat__hashtbl_ext.to_seq fold tbl

    let to_seq_keys tbl = Stdcompat__hashtbl_ext.to_seq_keys fold tbl

    let to_seq_values tbl = Stdcompat__hashtbl_ext.to_seq_values fold tbl
@END_WITHOUT_MAGIC@

    let add_seq tbl g = Stdcompat__hashtbl_ext.add_seq add tbl g

    let replace_seq tbl g = Stdcompat__hashtbl_ext.add_seq replace tbl g

    let of_seq g = Stdcompat__hashtbl_ext.of_seq ~create ~replace g
@END_BEFORE_4_07_0@

@BEGIN_BEFORE_4_05_0@
    let find_opt tbl key =
      Stdcompat__tools.option_find (find tbl) key
@END_BEFORE_4_05_0@
  end

  module MakeSeeded (H1 : Hashtbl.SeededHashedType)
      (H2 : Hashtbl.SeededHashedType) = struct
    include Ephemeron.K2.MakeSeeded (H1) (H2)

@BEGIN_BEFORE_4_07_0@
@BEGIN_WITH_MAGIC@
    let to_seq = Stdcompat__hashtbl_ext.to_seq

    let to_seq_keys = Stdcompat__hashtbl_ext.to_seq_keys

    let to_seq_values = Stdcompat__hashtbl_ext.to_seq_values
@END_WITH_MAGIC@
@BEGIN_WITHOUT_MAGIC@
    let to_seq tbl = Stdcompat__hashtbl_ext.to_seq fold tbl

    let to_seq_keys tbl = Stdcompat__hashtbl_ext.to_seq_keys fold tbl

    let to_seq_values tbl = Stdcompat__hashtbl_ext.to_seq_values fold tbl
@END_WITHOUT_MAGIC@

    let add_seq tbl g = Stdcompat__hashtbl_ext.add_seq add tbl g

    let replace_seq tbl g = Stdcompat__hashtbl_ext.add_seq replace tbl g

    let of_seq g = Stdcompat__hashtbl_ext.of_seq ~create ~replace g
@END_BEFORE_4_07_0@

@BEGIN_BEFORE_4_05_0@
    let find_opt tbl key =
      Stdcompat__tools.option_find (find tbl) key
@END_BEFORE_4_05_0@
  end
end

module Kn = struct
  type ('k, 'd) t = ('k, 'd) Ephemeron.Kn.t
  let create = Ephemeron.Kn.create
  let get_key = Ephemeron.Kn.get_key
  let get_key_copy = Ephemeron.Kn.get_key_copy
  let set_key = Ephemeron.Kn.set_key
  let unset_key = Ephemeron.Kn.unset_key
  let check_key = Ephemeron.Kn.check_key
  let blit_key = Ephemeron.Kn.blit_key
  let get_data = Ephemeron.Kn.get_data
  let get_data_copy = Ephemeron.Kn.get_data_copy
  let set_data = Ephemeron.Kn.set_data
  let unset_data = Ephemeron.Kn.unset_data
  let check_data = Ephemeron.Kn.check_data
  let blit_data = Ephemeron.Kn.blit_data

  module Make (H : Hashtbl.HashedType) = struct
    include Ephemeron.Kn.Make (H)

@BEGIN_BEFORE_4_07_0@
@BEGIN_WITH_MAGIC@
    let to_seq = Stdcompat__hashtbl_ext.to_seq

    let to_seq_keys = Stdcompat__hashtbl_ext.to_seq_keys

    let to_seq_values = Stdcompat__hashtbl_ext.to_seq_values
@END_WITH_MAGIC@
@BEGIN_WITHOUT_MAGIC@
    let to_seq tbl = Stdcompat__hashtbl_ext.to_seq fold tbl

    let to_seq_keys tbl = Stdcompat__hashtbl_ext.to_seq_keys fold tbl

    let to_seq_values tbl = Stdcompat__hashtbl_ext.to_seq_values fold tbl
@END_WITHOUT_MAGIC@

    let add_seq tbl g = Stdcompat__hashtbl_ext.add_seq add tbl g

    let replace_seq tbl g = Stdcompat__hashtbl_ext.add_seq replace tbl g

    let of_seq g = Stdcompat__hashtbl_ext.of_seq ~create ~replace g
@END_BEFORE_4_07_0@

@BEGIN_BEFORE_4_05_0@
    let find_opt tbl key =
      Stdcompat__tools.option_find (find tbl) key
@END_BEFORE_4_05_0@
  end

  module MakeSeeded (H : Hashtbl.SeededHashedType) = struct
    include Ephemeron.Kn.MakeSeeded (H)

@BEGIN_BEFORE_4_07_0@
@BEGIN_WITH_MAGIC@
    let to_seq = Stdcompat__hashtbl_ext.to_seq

    let to_seq_keys = Stdcompat__hashtbl_ext.to_seq_keys

    let to_seq_values = Stdcompat__hashtbl_ext.to_seq_values
@END_WITH_MAGIC@
@BEGIN_WITHOUT_MAGIC@
    let to_seq tbl = Stdcompat__hashtbl_ext.to_seq fold tbl

    let to_seq_keys tbl = Stdcompat__hashtbl_ext.to_seq_keys fold tbl

    let to_seq_values tbl = Stdcompat__hashtbl_ext.to_seq_values fold tbl
@END_WITHOUT_MAGIC@

    let add_seq tbl g = Stdcompat__hashtbl_ext.add_seq add tbl g

    let replace_seq tbl g = Stdcompat__hashtbl_ext.add_seq replace tbl g

    let of_seq g = Stdcompat__hashtbl_ext.of_seq ~create ~replace g
@END_BEFORE_4_07_0@

@BEGIN_BEFORE_4_05_0@
    let find_opt tbl key =
      Stdcompat__tools.option_find (find tbl) key
@END_BEFORE_4_05_0@
  end
end

module GenHashTable = struct
  type equal = Ephemeron.GenHashTable.equal =
      | ETrue
      | EFalse
      | EDead
  module MakeSeeded (H :
  sig
    type t
    (** keys *)

    type 'a container
    (** contains keys and the associated data *)

    val hash: int -> t -> int
    (** same as {!Hashtbl.SeededHashedType} *)

    val equal: 'a container -> t -> equal
    (** equality predicate used to compare a key with the one in a
        container. Can return [EDead] if the keys in the container are
        dead *)

    val create: t -> 'a -> 'a container
    (** [create key data] creates a container from
        some initials keys and one data *)

    val get_key: 'a container -> t option
    (** [get_key cont] returns the keys if they are all alive *)

    val get_data: 'a container -> 'a option
    (** [get_data cont] returns the data if it is alive *)

    val set_key_data: 'a container -> t -> 'a -> unit
    (** [set_key_data cont] modifies the key and data *)

    val check_key: 'a container -> bool
    (** [check_key cont] checks if all the keys contained in the data
        are alive *)
  end) = struct
    include Ephemeron.GenHashTable.MakeSeeded (H)

@BEGIN_BEFORE_4_07_0@
@BEGIN_WITH_MAGIC@
    let to_seq = Stdcompat__hashtbl_ext.to_seq

    let to_seq_keys = Stdcompat__hashtbl_ext.to_seq_keys

    let to_seq_values = Stdcompat__hashtbl_ext.to_seq_values
@END_WITH_MAGIC@
@BEGIN_WITHOUT_MAGIC@
    let to_seq tbl = Stdcompat__hashtbl_ext.to_seq fold tbl

    let to_seq_keys tbl = Stdcompat__hashtbl_ext.to_seq_keys fold tbl

    let to_seq_values tbl = Stdcompat__hashtbl_ext.to_seq_values fold tbl
@END_WITHOUT_MAGIC@

    let add_seq tbl g = Stdcompat__hashtbl_ext.add_seq add tbl g

    let replace_seq tbl g = Stdcompat__hashtbl_ext.add_seq replace tbl g

    let of_seq g = Stdcompat__hashtbl_ext.of_seq ~create ~replace g
@END_BEFORE_4_07_0@

@BEGIN_BEFORE_4_05_0@
    let find_opt tbl key =
      Stdcompat__tools.option_find (find tbl) key
@END_BEFORE_4_05_0@
  end
end
@END_FROM_4_04_0@
@BEGIN_BEFORE_4_04_0@
let not_implemented () =
  failwith "Stdcompat.Ephemeron is not implemented yet. Please fill an issue: https://github.com/thierry-martinez/stdcompat/issues ."

module K1 =struct
  type ('k, 'd) t
  let create _ = not_implemented ()
  let get_key _ = not_implemented ()
  let get_key_copy _ = not_implemented ()
  let set_key _ = not_implemented ()
  let unset_key _ = not_implemented ()
  let check_key _ = not_implemented ()
  let blit_key _ = not_implemented ()
  let get_data _ = not_implemented ()
  let get_data_copy _ = not_implemented ()
  let set_data _ = not_implemented ()
  let unset_data _ = not_implemented ()
  let check_data _ = not_implemented ()
  let blit_data _ = not_implemented ()
  module Make (H : Hashtbl.HashedType) = struct
    include Stdcompat__hashtbl.Make (H)
    let clean _ = not_implemented ()
    let stats_alive _ = not_implemented ()
  end
  module MakeSeeded (H : Stdcompat__hashtbl.SeededHashedType) = struct
    include Stdcompat__hashtbl.MakeSeeded (H)
    let clean _ = not_implemented ()
    let stats_alive _ = not_implemented ()
  end
end

module K2 = struct
  type ('k1, 'k2, 'd) t
  let create _ = not_implemented ()
  let get_key1 _ = not_implemented ()
  let get_key1_copy _ = not_implemented ()
  let set_key1 _ = not_implemented ()
  let unset_key1 _ = not_implemented ()
  let check_key1 _ = not_implemented ()
  let get_key2 _ = not_implemented ()
  let get_key2_copy _ = not_implemented ()
  let set_key2 _ = not_implemented ()
  let unset_key2 _ = not_implemented ()
  let check_key2 _ = not_implemented ()
  let blit_key1 _ = not_implemented ()
  let blit_key2 _ = not_implemented ()
  let blit_key12 _ = not_implemented ()
  let get_data _ = not_implemented ()
  let get_data_copy _ = not_implemented ()
  let set_data _ = not_implemented ()
  let unset_data _ = not_implemented ()
  let check_data _ = not_implemented ()
  let blit_data _ = not_implemented ()
  module Make (H1 : Hashtbl.HashedType) (H2 : Hashtbl.HashedType) = struct
    include Stdcompat__hashtbl.Make (struct
      type t = H1.t * H2.t

      let equal (x1, x2) (y1, y2) = H1.equal x1 y1 && H2.equal x2 y2

      let hash (x, y) = Hashtbl.hash (H1.hash x, H2.hash y)
    end)
    let clean _ = not_implemented ()
    let stats_alive _ = not_implemented ()
  end
  module MakeSeeded (H1 : Stdcompat__hashtbl.SeededHashedType)
       (H2 : Stdcompat__hashtbl.SeededHashedType) = struct
    include Stdcompat__hashtbl.MakeSeeded (struct
      type t = H1.t * H2.t

      let equal (x1, x2) (y1, y2) = H1.equal x1 y1 && H2.equal x2 y2

      let hash seed (x, y) = Hashtbl.hash (H1.hash seed x, H2.hash seed y)
    end)
    let clean _ = not_implemented ()
    let stats_alive _ = not_implemented ()
  end
end

module Kn  = struct
  type ('k, 'd) t
  let create _ = not_implemented ()
  let get_key _ = not_implemented ()
  let get_key_copy _ = not_implemented ()
  let set_key _ = not_implemented ()
  let unset_key _ = not_implemented ()
  let check_key _ = not_implemented ()
  let blit_key _ = not_implemented ()
  let get_data _ = not_implemented ()
  let get_data_copy _ = not_implemented ()
  let set_data _ = not_implemented ()
  let unset_data _ = not_implemented ()
  let check_data _ = not_implemented ()
  let blit_data _ = not_implemented ()
  module Make (H : Hashtbl.HashedType) = struct
    include Stdcompat__hashtbl.Make (struct
      type t = H.t array

      let equal x y =
        let rec check i =
          i >= Array.length x ||
            H.equal x.(i) y.(i) && check (succ i) in
        Array.length x = Array.length y && check 0

      let hash x = Hashtbl.hash (Array.map H.hash x)
    end)
    let clean _ = not_implemented ()
    let stats_alive _ = not_implemented ()
  end
  module MakeSeeded (H : Stdcompat__hashtbl.SeededHashedType) = struct
    include Stdcompat__hashtbl.MakeSeeded (struct
      type t = H.t array

      let equal x y =
        let rec check i =
          i >= Array.length x ||
            H.equal x.(i) y.(i) && check (succ i) in
        Array.length x = Array.length y && check 0

      let hash seed x = Hashtbl.hash (Array.map (H.hash seed) x)
    end)
    let clean _ = not_implemented ()
    let stats_alive _ = not_implemented ()
  end
end

module GenHashTable  = struct
  type equal =
      | ETrue
      | EFalse
      | EDead
  module MakeSeeded (H :
  sig
    type t
    (** keys *)

    type 'a container
    (** contains keys and the associated data *)

    val hash: int -> t -> int
    (** same as {!Hashtbl.SeededHashedType} *)

    val equal: 'a container -> t -> equal
    (** equality predicate used to compare a key with the one in a
        container. Can return [EDead] if the keys in the container are
        dead *)

    val create: t -> 'a -> 'a container
    (** [create key data] creates a container from
        some initials keys and one data *)

    val get_key: 'a container -> t option
    (** [get_key cont] returns the keys if they are all alive *)

    val get_data: 'a container -> 'a option
    (** [get_data cont] returns the data if it is alive *)

    val set_key_data: 'a container -> t -> 'a -> unit
    (** [set_key_data cont] modifies the key and data *)

    val check_key: 'a container -> bool
    (** [check_key cont] checks if all the keys contained in the data
        are alive *)
  end) = struct
    include Stdcompat__hashtbl.MakeSeeded (struct
      type t = H.t

      let equal _ _ = false

      let hash = H.hash
    end)
    let clean _ = not_implemented ()
    let stats_alive _ = not_implemented ()
  end
end
@END_BEFORE_4_04_0@
@END_BEFORE_4_07_0@