wishthis/node_modules/rxjs/internal/ReplaySubject.js
2022-01-21 09:28:41 +01:00

130 lines
No EOL
4.8 KiB
JavaScript

"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 Subject_1 = require("./Subject");
var queue_1 = require("./scheduler/queue");
var Subscription_1 = require("./Subscription");
var observeOn_1 = require("./operators/observeOn");
var ObjectUnsubscribedError_1 = require("./util/ObjectUnsubscribedError");
var SubjectSubscription_1 = require("./SubjectSubscription");
var ReplaySubject = (function (_super) {
__extends(ReplaySubject, _super);
function ReplaySubject(bufferSize, windowTime, scheduler) {
if (bufferSize === void 0) { bufferSize = Number.POSITIVE_INFINITY; }
if (windowTime === void 0) { windowTime = Number.POSITIVE_INFINITY; }
var _this = _super.call(this) || this;
_this.scheduler = scheduler;
_this._events = [];
_this._infiniteTimeWindow = false;
_this._bufferSize = bufferSize < 1 ? 1 : bufferSize;
_this._windowTime = windowTime < 1 ? 1 : windowTime;
if (windowTime === Number.POSITIVE_INFINITY) {
_this._infiniteTimeWindow = true;
_this.next = _this.nextInfiniteTimeWindow;
}
else {
_this.next = _this.nextTimeWindow;
}
return _this;
}
ReplaySubject.prototype.nextInfiniteTimeWindow = function (value) {
if (!this.isStopped) {
var _events = this._events;
_events.push(value);
if (_events.length > this._bufferSize) {
_events.shift();
}
}
_super.prototype.next.call(this, value);
};
ReplaySubject.prototype.nextTimeWindow = function (value) {
if (!this.isStopped) {
this._events.push(new ReplayEvent(this._getNow(), value));
this._trimBufferThenGetEvents();
}
_super.prototype.next.call(this, value);
};
ReplaySubject.prototype._subscribe = function (subscriber) {
var _infiniteTimeWindow = this._infiniteTimeWindow;
var _events = _infiniteTimeWindow ? this._events : this._trimBufferThenGetEvents();
var scheduler = this.scheduler;
var len = _events.length;
var subscription;
if (this.closed) {
throw new ObjectUnsubscribedError_1.ObjectUnsubscribedError();
}
else if (this.isStopped || this.hasError) {
subscription = Subscription_1.Subscription.EMPTY;
}
else {
this.observers.push(subscriber);
subscription = new SubjectSubscription_1.SubjectSubscription(this, subscriber);
}
if (scheduler) {
subscriber.add(subscriber = new observeOn_1.ObserveOnSubscriber(subscriber, scheduler));
}
if (_infiniteTimeWindow) {
for (var i = 0; i < len && !subscriber.closed; i++) {
subscriber.next(_events[i]);
}
}
else {
for (var i = 0; i < len && !subscriber.closed; i++) {
subscriber.next(_events[i].value);
}
}
if (this.hasError) {
subscriber.error(this.thrownError);
}
else if (this.isStopped) {
subscriber.complete();
}
return subscription;
};
ReplaySubject.prototype._getNow = function () {
return (this.scheduler || queue_1.queue).now();
};
ReplaySubject.prototype._trimBufferThenGetEvents = function () {
var now = this._getNow();
var _bufferSize = this._bufferSize;
var _windowTime = this._windowTime;
var _events = this._events;
var eventsCount = _events.length;
var spliceCount = 0;
while (spliceCount < eventsCount) {
if ((now - _events[spliceCount].time) < _windowTime) {
break;
}
spliceCount++;
}
if (eventsCount > _bufferSize) {
spliceCount = Math.max(spliceCount, eventsCount - _bufferSize);
}
if (spliceCount > 0) {
_events.splice(0, spliceCount);
}
return _events;
};
return ReplaySubject;
}(Subject_1.Subject));
exports.ReplaySubject = ReplaySubject;
var ReplayEvent = (function () {
function ReplayEvent(time, value) {
this.time = time;
this.value = value;
}
return ReplayEvent;
}());
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