Source file config.ml

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(*****************************************************************************)
(*                                                                           *)
(* Open Source License                                                       *)
(* Copyright (c) 2018-2021 Tarides <contact@tarides.com>                     *)
(*                                                                           *)
(* Permission is hereby granted, free of charge, to any person obtaining a   *)
(* copy of this software and associated documentation files (the "Software"),*)
(* to deal in the Software without restriction, including without limitation *)
(* the rights to use, copy, modify, merge, publish, distribute, sublicense,  *)
(* and/or sell copies of the Software, and to permit persons to whom the     *)
(* Software is furnished to do so, subject to the following conditions:      *)
(*                                                                           *)
(* The above copyright notice and this permission notice shall be included   *)
(* in all copies or substantial portions of the Software.                    *)
(*                                                                           *)
(* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR*)
(* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,  *)
(* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL   *)
(* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER*)
(* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING   *)
(* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER       *)
(* DEALINGS IN THE SOFTWARE.                                                 *)
(*                                                                           *)
(*****************************************************************************)

type inode_child_order =
  [`Seeded_hash | `Hash_bits | `Custom of depth:int -> bytes -> int]

let equal_inode_child_order x y =
  match (x, y) with
  | `Seeded_hash, `Seeded_hash -> true
  | `Hash_bits, `Hash_bits -> true
  | `Custom x, `Custom y -> x == y
  | _ -> false

type t = {
  entries : int;
  stable_hash : int;
  inode_child_order : inode_child_order;
}

let equal x y =
  x.entries = y.entries
  && x.stable_hash = y.stable_hash
  && equal_inode_child_order x.inode_child_order y.inode_child_order

let v ~entries ~stable_hash ~inode_child_order =
  {entries; stable_hash; inode_child_order}