| /** PURE_IMPORTS_START tslib,_Subscriber,_util_ArgumentOutOfRangeError PURE_IMPORTS_END */ |
| import * as tslib_1 from "tslib"; |
| import { Subscriber } from '../Subscriber'; |
| import { ArgumentOutOfRangeError } from '../util/ArgumentOutOfRangeError'; |
| export function skipLast(count) { |
| return function (source) { return source.lift(new SkipLastOperator(count)); }; |
| } |
| var SkipLastOperator = /*@__PURE__*/ (function () { |
| function SkipLastOperator(_skipCount) { |
| this._skipCount = _skipCount; |
| if (this._skipCount < 0) { |
| throw new ArgumentOutOfRangeError; |
| } |
| } |
| SkipLastOperator.prototype.call = function (subscriber, source) { |
| if (this._skipCount === 0) { |
| return source.subscribe(new Subscriber(subscriber)); |
| } |
| else { |
| return source.subscribe(new SkipLastSubscriber(subscriber, this._skipCount)); |
| } |
| }; |
| return SkipLastOperator; |
| }()); |
| var SkipLastSubscriber = /*@__PURE__*/ (function (_super) { |
| tslib_1.__extends(SkipLastSubscriber, _super); |
| function SkipLastSubscriber(destination, _skipCount) { |
| var _this = _super.call(this, destination) || this; |
| _this._skipCount = _skipCount; |
| _this._count = 0; |
| _this._ring = new Array(_skipCount); |
| return _this; |
| } |
| SkipLastSubscriber.prototype._next = function (value) { |
| var skipCount = this._skipCount; |
| var count = this._count++; |
| if (count < skipCount) { |
| this._ring[count] = value; |
| } |
| else { |
| var currentIndex = count % skipCount; |
| var ring = this._ring; |
| var oldValue = ring[currentIndex]; |
| ring[currentIndex] = value; |
| this.destination.next(oldValue); |
| } |
| }; |
| return SkipLastSubscriber; |
| }(Subscriber)); |
| //# sourceMappingURL=skipLast.js.map |