37 lines
1.4 KiB
OCaml
37 lines
1.4 KiB
OCaml
(**************************************************************************)
|
|
(* *)
|
|
(* Copyright (c) 2014 - 2016. *)
|
|
(* Dynamic Ledger Solutions, Inc. <contact@tezos.com> *)
|
|
(* *)
|
|
(* All rights reserved. No warranty, explicit or implicit, provided. *)
|
|
(* *)
|
|
(**************************************************************************)
|
|
|
|
(** Tezos Protocol Implementation - Error Monad *)
|
|
|
|
(** Categories of error *)
|
|
type error_category =
|
|
[ `Branch (** Errors that may not happen in another context *)
|
|
| `Temporary (** Errors that may not happen in a later context *)
|
|
| `Permanent (** Errors that will happen no matter the context *)
|
|
]
|
|
|
|
include Error_monad_sig.S
|
|
|
|
(** Erroneous result (shortcut for generic errors) *)
|
|
val generic_error : string -> 'a tzresult
|
|
|
|
(** Erroneous return (shortcut for generic errors) *)
|
|
val failwith :
|
|
('a, Format.formatter, unit, 'b tzresult Lwt.t) format4 ->
|
|
'a
|
|
|
|
val error_exn : exn -> 'a tzresult
|
|
val record_trace_exn : exn -> 'a tzresult -> 'a tzresult
|
|
val trace_exn : exn -> 'b tzresult Lwt.t -> 'b tzresult Lwt.t
|
|
|
|
type error += Exn of exn
|
|
type error += Unclassified of string
|
|
|
|
module Make() : Error_monad_sig.S
|