Source file map.ml

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(*                                                                           *)
(* Open Source License                                                       *)
(* Copyright (c) 2020 Nomadic Labs <contact@nomadic-labs.com>                *)
(*                                                                           *)
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(** Maps with the signature [S] are exception-safe replacements for
    maps with the {!Stdlib.Map.S} signature with Lwt- and result-aware
    traversal functions.

    See {!Lwtreslib}'s introductory documentation for explanations regarding
    [_e]-, [_s]-, [_es]-, [_p]-, and [_ep]-suffixed functions and exception
    safety. See {!Stdlib.Map.S} for explanations regarding OCaml's
    maps in general.

    Note that this signature is within the Traced part of the library. As a
    result, the [_ep] traversor returns en ['error trace]. *)
module type S = sig
  include Bare_functor_outputs.Map.S

  (** ['error trace] is intended to be substituted by a type provided by a
      [Trace] module ([with type 'error trace := 'error Trace.trace]) *)
  type 'error trace

  val iter_ep :
    (key -> 'a -> (unit, 'error trace) result Lwt.t) ->
    'a t ->
    (unit, 'error trace) result Lwt.t
end