wonka
Version:
A fast push & pull stream library for Reason, loosely following the [callbag spec](https://github.com/callbag/callbag)
67 lines (61 loc) • 2.71 kB
JavaScript
import * as Block from "bs-platform/lib/es6/block.js";
import * as Curry from "bs-platform/lib/es6/curry.js";
import * as Wonka_helpers from "../wonka_helpers.js";
function takeUntil(notifier) {
return (function (source) {
return (function (sink) {
var state = /* record */[
/* ended */false,
/* sourceTalkback */Wonka_helpers.talkbackPlaceholder,
/* notifierTalkback */Wonka_helpers.talkbackPlaceholder
];
Curry._1(source, (function (signal) {
if (typeof signal === "number") {
if (state[/* ended */0]) {
return /* () */0;
} else {
state[/* notifierTalkback */2](/* Close */1);
state[/* ended */0] = true;
return sink(/* End */0);
}
} else if (signal.tag) {
if (state[/* ended */0]) {
return /* () */0;
} else {
return sink(signal);
}
} else {
state[/* sourceTalkback */1] = signal[0];
return Curry._1(notifier, (function (signal) {
if (typeof signal === "number") {
return /* () */0;
} else if (signal.tag) {
state[/* ended */0] = true;
state[/* notifierTalkback */2](/* Close */1);
state[/* sourceTalkback */1](/* Close */1);
return sink(/* End */0);
} else {
var innerTb = signal[0];
state[/* notifierTalkback */2] = innerTb;
return innerTb(/* Pull */0);
}
}));
}
}));
return sink(/* Start */Block.__(0, [(function (signal) {
if (state[/* ended */0]) {
return 0;
} else if (signal) {
state[/* sourceTalkback */1](/* Close */1);
return state[/* notifierTalkback */2](/* Close */1);
} else {
return state[/* sourceTalkback */1](/* Pull */0);
}
})]));
});
});
}
export {
takeUntil ,
}
/* No side effect */