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keksAccountGUI/node_modulesOLD/rxjs/internal/operators/takeLast.js

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2019-08-11 18:48:02 +00:00
"use strict";
var __extends = (this && this.__extends) || (function () {
var extendStatics = function (d, b) {
extendStatics = Object.setPrototypeOf ||
({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
return extendStatics(d, b);
}
return function (d, b) {
extendStatics(d, b);
function __() { this.constructor = d; }
d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
};
})();
Object.defineProperty(exports, "__esModule", { value: true });
var Subscriber_1 = require("../Subscriber");
var ArgumentOutOfRangeError_1 = require("../util/ArgumentOutOfRangeError");
var empty_1 = require("../observable/empty");
function takeLast(count) {
return function takeLastOperatorFunction(source) {
if (count === 0) {
return empty_1.empty();
}
else {
return source.lift(new TakeLastOperator(count));
}
};
}
exports.takeLast = takeLast;
var TakeLastOperator = (function () {
function TakeLastOperator(total) {
this.total = total;
if (this.total < 0) {
throw new ArgumentOutOfRangeError_1.ArgumentOutOfRangeError;
}
}
TakeLastOperator.prototype.call = function (subscriber, source) {
return source.subscribe(new TakeLastSubscriber(subscriber, this.total));
};
return TakeLastOperator;
}());
var TakeLastSubscriber = (function (_super) {
__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_1.Subscriber));
//# sourceMappingURL=takeLast.js.map