Source file active_value.ml

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(*****************************************************************************

  Liquidsoap, a programmable audio stream generator.
  Copyright 2003-2024 Savonet team

  This program is free software; you can redistribute it and/or modify
  it under the terms of the GNU General Public License as published by
  the Free Software Foundation; either version 2 of the License, or
  (at your option) any later version.

  This program is distributed in the hope that it will be useful,
  but WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  GNU General Public License for more details, fully stated in the COPYING
  file at the root of the liquidsoap distribution.

  You should have received a copy of the GNU General Public License
  along with this program; if not, write to the Free Software
  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301  USA

 *****************************************************************************)

(* Weak hashes to track values that have not been collected. *)

module type T = sig
  type t

  val id : t -> int
end

module Make (T : T) = struct
  include Weak.Make (struct
    type t = T.t

    let equal t t' = T.id t = T.id t'
    let hash t = T.id t
  end)
end