Current section

Files

Jump to
lustre src lustre.erl
Raw

src/lustre.erl

-module(lustre).
-compile([no_auto_import, nowarn_unused_vars, nowarn_unused_function]).
-export([application/3, element/1, simple/3, component/5, start/3, destroy/1, is_browser/0, is_registered/1]).
-export_type([app/3, error/0]).
-opaque app(HVV, HVW, HVX) :: app | {gleam_phantom, HVV, HVW, HVX}.
-type error() :: app_already_started |
app_not_yet_started |
bad_component_name |
component_already_registered |
element_not_found |
not_a_browser.
-spec application(
fun((HWK) -> {HWL, lustre@effect:effect(HWM)}),
fun((HWL, HWM) -> {HWL, lustre@effect:effect(HWM)}),
fun((HWL) -> lustre@element:element(HWM))
) -> app(HWK, HWL, HWM).
application(_, _, _) ->
gleam@dynamic:unsafe_coerce(gleam@dynamic:from(nil)).
-spec element(lustre@element:element(HVY)) -> app(nil, nil, HVY).
element(Element) ->
Init = fun(_) -> {nil, lustre@effect:none()} end,
Update = fun(_, _) -> {nil, lustre@effect:none()} end,
View = fun(_) -> Element end,
application(Init, Update, View).
-spec simple(
fun((HWD) -> HWE),
fun((HWE, HWF) -> HWE),
fun((HWE) -> lustre@element:element(HWF))
) -> app(HWD, HWE, HWF).
simple(Init, Update, View) ->
Init@1 = fun(Flags) -> {Init(Flags), lustre@effect:none()} end,
Update@1 = fun(Model, Msg) -> {Update(Model, Msg), lustre@effect:none()} end,
application(Init@1, Update@1, View).
-spec component(
binary(),
fun(() -> {HWT, lustre@effect:effect(HWU)}),
fun((HWT, HWU) -> {HWT, lustre@effect:effect(HWU)}),
fun((HWT) -> lustre@element:element(HWU)),
gleam@map:map_(binary(), fun((gleam@dynamic:dynamic_()) -> {ok, HWU} |
{error, list(gleam@dynamic:decode_error())}))
) -> {ok, nil} | {error, error()}.
component(_, _, _, _, _) ->
{ok, nil}.
-spec start(app(HXD, any(), HXF), binary(), HXD) -> {ok, fun((HXF) -> nil)} |
{error, error()}.
start(_, _, _) ->
{error, not_a_browser}.
-spec destroy(app(any(), any(), any())) -> {ok, nil} | {error, error()}.
destroy(_) ->
{ok, nil}.
-spec is_browser() -> boolean().
is_browser() ->
false.
-spec is_registered(binary()) -> boolean().
is_registered(_) ->
false.