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(* Open Source License                                                       *)
(* Copyright (c) 2018 Dynamic Ledger Solutions, Inc. <contact@tezos.com>     *)
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(** Like most other [.mli] files in this directory, this is not intended for
    end-users. Instead, the interface from this file is used internally to
    assemble the end-user-intended module {!Data_encoding}. Refer to that module
    for doucmentation. *)

type integer_extended = [Binary_size.integer | `Int32 | `Int64]

type field_descr =
  | Named_field of string * Encoding.Kind.t * layout
  | Anonymous_field of Encoding.Kind.t * layout
  | Dynamic_size_field of string option * int * Binary_size.length
  | Optional_field of string

and layout =
  | Zero_width
  | Int of integer_extended
  | Bool
  | RangedInt of int * int
  | RangedFloat of float * float
  | Float
  | Bytes
  | String
  | Enum of Binary_size.integer * string
  | Seq of layout * Encoding.limit (* For arrays and lists *)
  | Ref of string
  | Padding

and fields = field_descr list

and toplevel_encoding =
  | Obj of {fields : fields}
  | Cases of {
      kind : Encoding.Kind.t;
      tag_size : Binary_size.tag_size;
      cases : (int * string option * fields) list;
    }
  | Int_enum of {size : Binary_size.integer; cases : (int * string) list}

and description = {title : string; description : string option}
[@@deriving hash]

type t = {
  toplevel : toplevel_encoding;
  fields : (description * toplevel_encoding) list;
}

val pp : Format.formatter -> t -> unit

val encoding : t Encoding.t