+++ /dev/null
-/** 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 takeLast(count) {
- return function takeLastOperatorFunction(source) {
- if (count === 0) {
- return empty();
- }
- else {
- return source.lift(new TakeLastOperator(count));
- }
- };
-}
-var TakeLastOperator = /*@__PURE__*/ (function () {
- function TakeLastOperator(total) {
- this.total = total;
- if (this.total < 0) {
- throw new ArgumentOutOfRangeError;
- }
- }
- TakeLastOperator.prototype.call = function (subscriber, source) {
- return source.subscribe(new TakeLastSubscriber(subscriber, this.total));
- };
- return TakeLastOperator;
-}());
-var TakeLastSubscriber = /*@__PURE__*/ (function (_super) {
- tslib_1.__extends(TakeLastSubscriber, _super);
- function TakeLastSubscriber(destination, total) {
- var _this = _super.call(this, destination) || this;
- _this.total = total;
- _this.ring = new Array();
- _this.count = 0;
- return _this;
- }
- TakeLastSubscriber.prototype._next = function (value) {
- var ring = this.ring;
- var total = this.total;
- var count = this.count++;
- if (ring.length < total) {
- ring.push(value);
- }
- else {
- var index = count % total;
- ring[index] = value;
- }
- };
- TakeLastSubscriber.prototype._complete = function () {
- var destination = this.destination;
- var count = this.count;
- if (count > 0) {
- var total = this.count >= this.total ? this.total : this.count;
- var ring = this.ring;
- for (var i = 0; i < total; i++) {
- var idx = (count++) % total;
- destination.next(ring[idx]);
- }
- }
- destination.complete();
- };
- return TakeLastSubscriber;
-}(Subscriber));
-//# sourceMappingURL=takeLast.js.map