Source file `ppx_hash_lib.ml`

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module Std = struct
  module Hash = Hash
end

(** The functor is exposed to make it possible to use ppx_hash with alternative hash types
    without having to duplicate these definitions. *)
module F (Types : sig
    type hash_state
    type hash_value
  end) =
struct
  open Types

  type ('a : any) hash_fold = hash_state -> 'a -> hash_state

  module Hashable = struct
    module type S_any = sig
      type t : any

      val hash_fold_t : t hash_fold
      val hash : t -> hash_value
    end

    module type S1_any = sig
      type 'a t : any

      val hash_fold_t : 'a hash_fold -> 'a t hash_fold
    end

    module type S2_any = sig
      type ('a, 'b) t : any

      val hash_fold_t : 'a hash_fold -> 'b hash_fold -> ('a, 'b) t hash_fold
    end

    module type S3_any = sig
      type ('a, 'b, 'c) t : any

      val hash_fold_t
        :  'a hash_fold
        -> 'b hash_fold
        -> 'c hash_fold
        -> ('a, 'b, 'c) t hash_fold
    end

    module type S = sig
      type t

      include S_any with type t := t
    end

    module type S1 = sig
      type 'a t

      include S1_any with type 'a t := 'a t
    end

    module type S2 = sig
      type ('a, 'b) t

      include S2_any with type ('a, 'b) t := ('a, 'b) t
    end

    module type S3 = sig
      type ('a, 'b, 'c) t

      include S3_any with type ('a, 'b, 'c) t := ('a, 'b, 'c) t
    end
  end
end

include F (struct
    type nonrec hash_state = Std.Hash.state
    type nonrec hash_value = Std.Hash.hash_value
  end)
Source file ppx_hash_lib.ml

Source file `ppx_hash_lib.ml`
