Module Lwt_react.S

module S: sig .. end

include React.S

Monadic interface

val return : 'a -> 'a Lwt_react.signal

Same as const.

val bind : ?eq:('a -> 'a -> bool) ->
       'b Lwt_react.signal -> ('b -> 'a Lwt_react.signal) -> 'a Lwt_react.signal

bind ?eq s f is initially f x where x is the current value of s. Each time s changes to a new value y,

bind
        signal f

is set to f y, until the next change of signal.

val bind_s : ?eq:('a -> 'a -> bool) ->
       'b Lwt_react.signal ->
       ('b -> 'a Lwt_react.signal Lwt.t) -> 'a Lwt_react.signal Lwt.t

Same as Lwt_react.S.bind except that f returns a thread. Calls to f are serialized.

Lwt-specific utilities

val with_finaliser : (unit -> unit) -> 'a Lwt_react.signal -> 'a Lwt_react.signal

with_finaliser f s returns a signal s' which behave as s, except that f is called when s' is garbage collected.

val limit : ?eq:('a -> 'a -> bool) ->
       (unit -> unit Lwt.t) -> 'a Lwt_react.signal -> 'a Lwt_react.signal

limit f s limits the rate of s update with f.

For example, to limit it to 1 per second, you can use: limit (fun () -> Lwt_unix.sleep 1.0) s.

val keep : 'a Lwt_react.signal -> unit

keep s keeps a reference to s so it will never be garbage collected.

Threaded versions of React transformation functions

The following functions behave as their React counterpart, except that they takes functions that may yield.

The _s suffix means that calls are serialized.

val app_s : ?eq:('a -> 'a -> bool) ->
       ('b -> 'a Lwt.t) Lwt_react.signal ->
       'b Lwt_react.signal -> 'a Lwt_react.signal Lwt.t

val map_s : ?eq:('a -> 'a -> bool) ->
       ('b -> 'a Lwt.t) -> 'b Lwt_react.signal -> 'a Lwt_react.signal Lwt.t

val filter_s : ?eq:('a -> 'a -> bool) ->
       ('a -> bool Lwt.t) -> 'a -> 'a Lwt_react.signal -> 'a Lwt_react.signal Lwt.t

val fmap_s : ?eq:('a -> 'a -> bool) ->
       ('b -> 'a option Lwt.t) ->
       'a -> 'b Lwt_react.signal -> 'a Lwt_react.signal Lwt.t

val diff_s : ('a -> 'a -> 'b Lwt.t) -> 'a Lwt_react.signal -> 'b Lwt_react.event

val sample_s : ('a -> 'b -> 'c Lwt.t) ->
       'a Lwt_react.event -> 'b Lwt_react.signal -> 'c Lwt_react.event

val accum_s : ?eq:('a -> 'a -> bool) ->
       ('a -> 'a Lwt.t) Lwt_react.event -> 'a -> 'a Lwt_react.signal

val fold_s : ?eq:('a -> 'a -> bool) ->
       ('a -> 'b -> 'a Lwt.t) -> 'a -> 'b Lwt_react.event -> 'a Lwt_react.signal

val merge_s : ?eq:('a -> 'a -> bool) ->
       ('a -> 'b -> 'a Lwt.t) ->
       'a -> 'b Lwt_react.signal list -> 'a Lwt_react.signal Lwt.t

val l1_s : ?eq:('a -> 'a -> bool) ->
       ('b -> 'a Lwt.t) -> 'b Lwt_react.signal -> 'a Lwt_react.signal Lwt.t

val l2_s : ?eq:('a -> 'a -> bool) ->
       ('b -> 'c -> 'a Lwt.t) ->
       'b Lwt_react.signal -> 'c Lwt_react.signal -> 'a Lwt_react.signal Lwt.t

val l3_s : ?eq:('a -> 'a -> bool) ->
       ('b -> 'c -> 'd -> 'a Lwt.t) ->
       'b Lwt_react.signal ->
       'c Lwt_react.signal -> 'd Lwt_react.signal -> 'a Lwt_react.signal Lwt.t

val l4_s : ?eq:('a -> 'a -> bool) ->
       ('b -> 'c -> 'd -> 'e -> 'a Lwt.t) ->
       'b Lwt_react.signal ->
       'c Lwt_react.signal ->
       'd Lwt_react.signal -> 'e Lwt_react.signal -> 'a Lwt_react.signal Lwt.t

val l5_s : ?eq:('a -> 'a -> bool) ->
       ('b -> 'c -> 'd -> 'e -> 'f -> 'a Lwt.t) ->
       'b Lwt_react.signal ->
       'c Lwt_react.signal ->
       'd Lwt_react.signal ->
       'e Lwt_react.signal -> 'f Lwt_react.signal -> 'a Lwt_react.signal Lwt.t

val l6_s : ?eq:('a -> 'a -> bool) ->
       ('b -> 'c -> 'd -> 'e -> 'f -> 'g -> 'a Lwt.t) ->
       'b Lwt_react.signal ->
       'c Lwt_react.signal ->
       'd Lwt_react.signal ->
       'e Lwt_react.signal ->
       'f Lwt_react.signal -> 'g Lwt_react.signal -> 'a Lwt_react.signal Lwt.t

val run_s : ?eq:('a -> 'a -> bool) ->
       'a Lwt.t Lwt_react.signal -> 'a Lwt_react.signal Lwt.t