package dunolint-lib

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package dunolint-lib
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Source file container_key.ml

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(*******************************************************************************)
(*  Vcs - a Versatile OCaml Library for Git Operations                         *)
(*  Copyright (C) 2024 Mathieu Barbin <mathieu.barbin@gmail.com>               *)
(*                                                                             *)
(*  This file is part of Vcs.                                                  *)
(*                                                                             *)
(*  Vcs is free software; you can redistribute it and/or modify it under       *)
(*  the terms of the GNU Lesser General Public License as published by the     *)
(*  Free Software Foundation either version 3 of the License, or any later     *)
(*  version, with the LGPL-3.0 Linking Exception.                              *)
(*                                                                             *)
(*  Vcs 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 Lesser General Public License and    *)
(*  the file `NOTICE.md` at the root of this repository for more details.      *)
(*                                                                             *)
(*  You should have received a copy of the GNU Lesser General Public License   *)
(*  and the LGPL-3.0 Linking Exception along with this library. If not, see    *)
(*  <http://www.gnu.org/licenses/> and <https://spdx.org>, respectively.       *)
(*******************************************************************************)

module type S = sig
  type t

  val compare : t -> t -> int
  val equal : t -> t -> bool
  val hash : t -> int
  val seeded_hash : int -> t -> int
  val sexp_of_t : t -> Sexp.t
  val t_of_sexp : Sexp.t -> t
end

module String_impl = struct
  type t = string

  let compare = String.compare
  let equal = String.equal
  let sexp_of_t = sexp_of_string
  let t_of_sexp = string_of_sexp

  (* [hash] and [seeded_hash] were changed from [String.*] to [Hashtbl.*]
     equivalent in order to achieve compatibility with OCaml 4.14 stdlib. *)
  let hash : string -> int = Hashtbl.hash
  let seeded_hash : int -> string -> int = Hashtbl.seeded_hash
end