Module `TzLwtreslib.Result`

type (!'a, !'e) t = ('a, 'e) result =

| Ok of 'a
| Error of 'e

val ok : 'a -> ('a, 'e) result

val ok_s : 'a -> ('a, 'e) result Lwt.t

val error : 'e -> ('a, 'e) result

val error_s : 'e -> ('a, 'e) result Lwt.t

val value : ('a, 'e) result -> default:'a -> 'a

val value_f : ('a, 'e) result -> default:(unit -> 'a) -> 'a

val bind : ('a, 'e) result -> ('a -> ('b, 'e) result) -> ('b, 'e) result

val bind_error : ('a, 'e) result -> ('e -> ('a, 'f) result) -> ('a, 'f) result

val map : ('a -> 'b) -> ('a, 'e) result -> ('b, 'e) result

val map_error : ('e -> 'f) -> ('a, 'e) result -> ('a, 'f) result

val bind_s : 
  ('a, 'e) result ->
  ('a -> ('b, 'e) result Lwt.t) ->
  ('b, 'e) result Lwt.t

val bind_error_s : 
  ('a, 'e) result ->
  ('e -> ('a, 'f) result Lwt.t) ->
  ('a, 'f) result Lwt.t

val join : (('a, 'e) result, 'e) result -> ('a, 'e) result

val map_e : ('a -> ('b, 'e) result) -> ('a, 'e) result -> ('b, 'e) result

val map_s : ('a -> 'b Lwt.t) -> ('a, 'e) result -> ('b, 'e) result Lwt.t

val map_es : 
  ('a -> ('b, 'e) result Lwt.t) ->
  ('a, 'e) result ->
  ('b, 'e) result Lwt.t

val map_error_e : ('e -> ('a, 'f) result) -> ('a, 'e) result -> ('a, 'f) result

val map_error_s : ('e -> 'f Lwt.t) -> ('a, 'e) result -> ('a, 'f) result Lwt.t

val map_error_es : 
  ('e -> ('a, 'f) result Lwt.t) ->
  ('a, 'e) result ->
  ('a, 'f) result Lwt.t

val fold : ok:('a -> 'c) -> error:('e -> 'c) -> ('a, 'e) result -> 'c

val iter : ('a -> unit) -> ('a, 'e) result -> unit

val iter_s : ('a -> unit Lwt.t) -> ('a, 'e) result -> unit Lwt.t

val iter_error : ('e -> unit) -> ('a, 'e) result -> unit

val iter_error_s : ('e -> unit Lwt.t) -> ('a, 'e) result -> unit Lwt.t

val is_ok : ('a, 'e) result -> bool

val is_error : ('a, 'e) result -> bool

val equal : 
  ok:('a -> 'a -> bool) ->
  error:('e -> 'e -> bool) ->
  ('a, 'e) result ->
  ('a, 'e) result ->
  bool

val compare : 
  ok:('a -> 'a -> int) ->
  error:('e -> 'e -> int) ->
  ('a, 'e) result ->
  ('a, 'e) result ->
  int

val to_option : ('a, 'e) result -> 'a option

val of_option : error:'e -> 'a option -> ('a, 'e) result

val to_list : ('a, 'e) result -> 'a list

val to_seq : ('a, 'e) result -> 'a Seq.t

val catch : ?catch_only:(exn -> bool) -> (unit -> 'a) -> ('a, exn) result

val catch_f : 
  ?catch_only:(exn -> bool) ->
  (unit -> 'a) ->
  (exn -> 'e) ->
  ('a, 'e) result

val catch_ef : 
  ?catch_only:(exn -> bool) ->
  (unit -> ('a, 'error) result) ->
  (exn -> 'error) ->
  ('a, 'error) result

val catch_s : 
  ?catch_only:(exn -> bool) ->
  (unit -> 'a Lwt.t) ->
  ('a, exn) result Lwt.t

val return : 'a -> ('a, 'e) result

val return_unit : (unit, 'e) result

val return_none : ('a option, 'e) result

val return_some : 'a -> ('a option, 'e) result

val return_nil : ('a list, 'e) result

val return_true : (bool, 'e) result

val return_false : (bool, 'e) result

Install

Dune Dependency

Authors

Maintainers

Sources

doc/octez-libs.error-monad/Tezos_error_monad/TzLwtreslib/Result/index.html

Module `TzLwtreslib.Result`

package octez-libs

Install

Dune Dependency

Authors

Maintainers

Sources

doc/octez-libs.error-monad/Tezos_error_monad/TzLwtreslib/Result/index.html

Module TzLwtreslib.Result

Module `TzLwtreslib.Result`