56 lines
2.5 KiB
JavaScript
56 lines
2.5 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 const TimeoutError = createErrorClass((_super) => function TimeoutErrorImpl(info = null) {
|
||
|
|
_super(this);
|
||
|
|
this.message = 'Timeout has occurred';
|
||
|
|
this.name = 'TimeoutError';
|
||
|
|
this.info = info;
|
||
|
|
});
|
||
|
|
export function timeout(config, schedulerArg) {
|
||
|
|
const { first, each, with: _with = timeoutErrorFactory, scheduler = schedulerArg !== null && schedulerArg !== void 0 ? schedulerArg : asyncScheduler, meta = null, } = (isValidDate(config) ? { first: config } : typeof config === 'number' ? { each: config } : config);
|
||
|
|
if (first == null && each == null) {
|
||
|
|
throw new TypeError('No timeout provided.');
|
||
|
|
}
|
||
|
|
return operate((source, subscriber) => {
|
||
|
|
let originalSourceSubscription;
|
||
|
|
let timerSubscription;
|
||
|
|
let lastValue = null;
|
||
|
|
let seen = 0;
|
||
|
|
const startTimer = (delay) => {
|
||
|
|
timerSubscription = executeSchedule(subscriber, scheduler, () => {
|
||
|
|
try {
|
||
|
|
originalSourceSubscription.unsubscribe();
|
||
|
|
innerFrom(_with({
|
||
|
|
meta,
|
||
|
|
lastValue,
|
||
|
|
seen,
|
||
|
|
})).subscribe(subscriber);
|
||
|
|
}
|
||
|
|
catch (err) {
|
||
|
|
subscriber.error(err);
|
||
|
|
}
|
||
|
|
}, delay);
|
||
|
|
};
|
||
|
|
originalSourceSubscription = source.subscribe(createOperatorSubscriber(subscriber, (value) => {
|
||
|
|
timerSubscription === null || timerSubscription === void 0 ? void 0 : timerSubscription.unsubscribe();
|
||
|
|
seen++;
|
||
|
|
subscriber.next((lastValue = value));
|
||
|
|
each > 0 && startTimer(each);
|
||
|
|
}, undefined, undefined, () => {
|
||
|
|
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
|