60 lines
2.2 KiB
JavaScript
60 lines
2.2 KiB
JavaScript
import { EMPTY } from '../observable/empty';
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import { operate } from '../util/lift';
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import { createOperatorSubscriber } from './OperatorSubscriber';
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import { innerFrom } from '../observable/innerFrom';
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import { timer } from '../observable/timer';
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export function repeat(countOrConfig) {
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var _a;
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var count = Infinity;
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var delay;
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if (countOrConfig != null) {
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if (typeof countOrConfig === 'object') {
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(_a = countOrConfig.count, count = _a === void 0 ? Infinity : _a, delay = countOrConfig.delay);
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}
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else {
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count = countOrConfig;
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}
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}
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return count <= 0
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? function () { return EMPTY; }
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: operate(function (source, subscriber) {
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var soFar = 0;
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var sourceSub;
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var resubscribe = function () {
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sourceSub === null || sourceSub === void 0 ? void 0 : sourceSub.unsubscribe();
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sourceSub = null;
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if (delay != null) {
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var notifier = typeof delay === 'number' ? timer(delay) : innerFrom(delay(soFar));
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var notifierSubscriber_1 = createOperatorSubscriber(subscriber, function () {
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notifierSubscriber_1.unsubscribe();
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subscribeToSource();
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});
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notifier.subscribe(notifierSubscriber_1);
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}
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else {
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subscribeToSource();
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}
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};
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var subscribeToSource = function () {
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var syncUnsub = false;
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sourceSub = source.subscribe(createOperatorSubscriber(subscriber, undefined, function () {
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if (++soFar < count) {
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if (sourceSub) {
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resubscribe();
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}
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else {
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syncUnsub = true;
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}
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}
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else {
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subscriber.complete();
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}
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}));
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if (syncUnsub) {
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resubscribe();
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}
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};
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subscribeToSource();
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});
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}
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//# sourceMappingURL=repeat.js.map
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