node_modules/rxjs/_esm5/ReplaySubject.js

/** PURE_IMPORTS_START ._Subject,._scheduler_queue,._Subscription,._operators_observeOn,._util_ObjectUnsubscribedError,._SubjectSubscription PURE_IMPORTS_END */
var __extends = (this && this.__extends) || function (d, b) {
    for (var p in b)
        if (b.hasOwnProperty(p))
            d[p] = b[p];
    function __() { this.constructor = d; }
    d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
};
import { Subject } from './Subject';
import { queue } from './scheduler/queue';
import { Subscription } from './Subscription';
import { ObserveOnSubscriber } from './operators/observeOn';
import { ObjectUnsubscribedError } from './util/ObjectUnsubscribedError';
import { SubjectSubscription } from './SubjectSubscription';
/**
 * @class ReplaySubject<T>
 */
export var ReplaySubject = /*@__PURE__*/ (/*@__PURE__*/ 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;
        }
        _super.call(this);
        this.scheduler = scheduler;
        this._events = [];
        this._bufferSize = bufferSize < 1 ? 1 : bufferSize;
        this._windowTime = windowTime < 1 ? 1 : windowTime;
    }
    ReplaySubject.prototype.next = function (value) {
        var now = this._getNow();
        this._events.push(new ReplayEvent(now, value));
        this._trimBufferThenGetEvents();
        _super.prototype.next.call(this, value);
    };
    ReplaySubject.prototype._subscribe = function (subscriber) {
        var _events = this._trimBufferThenGetEvents();
        var scheduler = this.scheduler;
        var subscription;
        if (this.closed) {
            throw new ObjectUnsubscribedError();
        }
        else if (this.hasError) {
            subscription = Subscription.EMPTY;
        }
        else if (this.isStopped) {
            subscription = Subscription.EMPTY;
        }
        else {
            this.observers.push(subscriber);
            subscription = new SubjectSubscription(this, subscriber);
        }
        if (scheduler) {
            subscriber.add(subscriber = new ObserveOnSubscriber(subscriber, scheduler));
        }
        var len = _events.length;
        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).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;
        // Trim events that fall out of the time window.
        // Start at the front of the list. Break early once
        // we encounter an event that falls within the window.
        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));
var ReplayEvent = /*@__PURE__*/ (/*@__PURE__*/ function () {
    function ReplayEvent(time, value) {
        this.time = time;
        this.value = value;
    }
    return ReplayEvent;
}());
//# sourceMappingURL=ReplaySubject.js.map