(*****************************************************************************)
(* *)
(* Open Source License *)
(* Copyright (c) 2018 Dynamic Ledger Solutions, Inc. <contact@tezos.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 *)
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(* DEALINGS IN THE SOFTWARE. *)
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(** The shell's notion of a level: an integer indicating the number of blocks
since genesis: genesis is 0, all other blocks have increasing levels from
there. *)
type t
type raw_level = t
(** @raise Invalid_argument when the level to encode is not positive *)
val encoding : raw_level Data_encoding.t
val rpc_arg : raw_level RPC_arg.arg
val pp : Format.formatter -> raw_level -> unit
include Compare.S with type t := raw_level
val to_int32 : raw_level -> int32
(** @raise Invalid_argument when the level to encode is negative *)
val of_int32_exn : int32 -> raw_level
(** Can trigger Unexpected_level error when the level to encode is negative *)
val of_int32 : int32 -> raw_level tzresult
val diff : raw_level -> raw_level -> int32
val root : raw_level
val succ : raw_level -> raw_level
val pred : raw_level -> raw_level option
(** [add l i] i must be positive *)
val add : raw_level -> int -> raw_level
(** [sub l i] i must be positive *)
val sub : raw_level -> int -> raw_level option
module Index : Storage_description.INDEX with type t = raw_level