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- /** PURE_IMPORTS_START tslib,_Subscriber,_util_ArgumentOutOfRangeError,_observable_empty PURE_IMPORTS_END */
- import * as tslib_1 from "tslib";
- import { Subscriber } from '../Subscriber';
- import { ArgumentOutOfRangeError } from '../util/ArgumentOutOfRangeError';
- import { empty } from '../observable/empty';
- export function take(count) {
- return function (source) {
- if (count === 0) {
- return empty();
- }
- else {
- return source.lift(new TakeOperator(count));
- }
- };
- }
- var TakeOperator = /*@__PURE__*/ (function () {
- function TakeOperator(total) {
- this.total = total;
- if (this.total < 0) {
- throw new ArgumentOutOfRangeError;
- }
- }
- TakeOperator.prototype.call = function (subscriber, source) {
- return source.subscribe(new TakeSubscriber(subscriber, this.total));
- };
- return TakeOperator;
- }());
- var TakeSubscriber = /*@__PURE__*/ (function (_super) {
- tslib_1.__extends(TakeSubscriber, _super);
- function TakeSubscriber(destination, total) {
- var _this = _super.call(this, destination) || this;
- _this.total = total;
- _this.count = 0;
- return _this;
- }
- TakeSubscriber.prototype._next = function (value) {
- var total = this.total;
- var count = ++this.count;
- if (count <= total) {
- this.destination.next(value);
- if (count === total) {
- this.destination.complete();
- this.unsubscribe();
- }
- }
- };
- return TakeSubscriber;
- }(Subscriber));
- //# sourceMappingURL=take.js.map
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