59 lines
2.8 KiB
JavaScript
59 lines
2.8 KiB
JavaScript
import { asyncScheduler } from '../scheduler/async';
|
|
import { isValidDate } from '../util/isDate';
|
|
import { operate } from '../util/lift';
|
|
import { innerFrom } from '../observable/innerFrom';
|
|
import { createErrorClass } from '../util/createErrorClass';
|
|
import { createOperatorSubscriber } from './OperatorSubscriber';
|
|
import { executeSchedule } from '../util/executeSchedule';
|
|
export var TimeoutError = createErrorClass(function (_super) {
|
|
return function TimeoutErrorImpl(info) {
|
|
if (info === void 0) { info = null; }
|
|
_super(this);
|
|
this.message = 'Timeout has occurred';
|
|
this.name = 'TimeoutError';
|
|
this.info = info;
|
|
};
|
|
});
|
|
export function timeout(config, schedulerArg) {
|
|
var _a = (isValidDate(config) ? { first: config } : typeof config === 'number' ? { each: config } : config), first = _a.first, each = _a.each, _b = _a.with, _with = _b === void 0 ? timeoutErrorFactory : _b, _c = _a.scheduler, scheduler = _c === void 0 ? schedulerArg !== null && schedulerArg !== void 0 ? schedulerArg : asyncScheduler : _c, _d = _a.meta, meta = _d === void 0 ? null : _d;
|
|
if (first == null && each == null) {
|
|
throw new TypeError('No timeout provided.');
|
|
}
|
|
return operate(function (source, subscriber) {
|
|
var originalSourceSubscription;
|
|
var timerSubscription;
|
|
var lastValue = null;
|
|
var seen = 0;
|
|
var startTimer = function (delay) {
|
|
timerSubscription = executeSchedule(subscriber, scheduler, function () {
|
|
try {
|
|
originalSourceSubscription.unsubscribe();
|
|
innerFrom(_with({
|
|
meta: meta,
|
|
lastValue: lastValue,
|
|
seen: seen,
|
|
})).subscribe(subscriber);
|
|
}
|
|
catch (err) {
|
|
subscriber.error(err);
|
|
}
|
|
}, delay);
|
|
};
|
|
originalSourceSubscription = source.subscribe(createOperatorSubscriber(subscriber, function (value) {
|
|
timerSubscription === null || timerSubscription === void 0 ? void 0 : timerSubscription.unsubscribe();
|
|
seen++;
|
|
subscriber.next((lastValue = value));
|
|
each > 0 && startTimer(each);
|
|
}, undefined, undefined, function () {
|
|
if (!(timerSubscription === null || timerSubscription === void 0 ? void 0 : timerSubscription.closed)) {
|
|
timerSubscription === null || timerSubscription === void 0 ? void 0 : timerSubscription.unsubscribe();
|
|
}
|
|
lastValue = null;
|
|
}));
|
|
!seen && startTimer(first != null ? (typeof first === 'number' ? first : +first - scheduler.now()) : each);
|
|
});
|
|
}
|
|
function timeoutErrorFactory(info) {
|
|
throw new TimeoutError(info);
|
|
}
|
|
//# sourceMappingURL=timeout.js.map
|