{"ast":null,"code":"import { Subject } from './Subject';\nimport { queue } from './scheduler/queue';\nimport { Subscription } from './Subscription';\nimport { ObserveOnSubscriber } from './operators/observeOn';\nimport { ObjectUnsubscribedError } from './util/ObjectUnsubscribedError';\nimport { SubjectSubscription } from './SubjectSubscription';\nexport class ReplaySubject extends Subject {\n  constructor(bufferSize = Number.POSITIVE_INFINITY, windowTime = Number.POSITIVE_INFINITY, scheduler) {\n    super();\n    this.scheduler = scheduler;\n    this._events = [];\n    this._infiniteTimeWindow = false;\n    this._bufferSize = bufferSize < 1 ? 1 : bufferSize;\n    this._windowTime = windowTime < 1 ? 1 : windowTime;\n\n    if (windowTime === Number.POSITIVE_INFINITY) {\n      this._infiniteTimeWindow = true;\n      this.next = this.nextInfiniteTimeWindow;\n    } else {\n      this.next = this.nextTimeWindow;\n    }\n  }\n\n  nextInfiniteTimeWindow(value) {\n    if (!this.isStopped) {\n      const _events = this._events;\n\n      _events.push(value);\n\n      if (_events.length > this._bufferSize) {\n        _events.shift();\n      }\n    }\n\n    super.next(value);\n  }\n\n  nextTimeWindow(value) {\n    if (!this.isStopped) {\n      this._events.push(new ReplayEvent(this._getNow(), value));\n\n      this._trimBufferThenGetEvents();\n    }\n\n    super.next(value);\n  }\n\n  _subscribe(subscriber) {\n    const _infiniteTimeWindow = this._infiniteTimeWindow;\n\n    const _events = _infiniteTimeWindow ? this._events : this._trimBufferThenGetEvents();\n\n    const scheduler = this.scheduler;\n    const len = _events.length;\n    let subscription;\n\n    if (this.closed) {\n      throw new ObjectUnsubscribedError();\n    } else if (this.isStopped || this.hasError) {\n      subscription = Subscription.EMPTY;\n    } else {\n      this.observers.push(subscriber);\n      subscription = new SubjectSubscription(this, subscriber);\n    }\n\n    if (scheduler) {\n      subscriber.add(subscriber = new ObserveOnSubscriber(subscriber, scheduler));\n    }\n\n    if (_infiniteTimeWindow) {\n      for (let i = 0; i < len && !subscriber.closed; i++) {\n        subscriber.next(_events[i]);\n      }\n    } else {\n      for (let i = 0; i < len && !subscriber.closed; i++) {\n        subscriber.next(_events[i].value);\n      }\n    }\n\n    if (this.hasError) {\n      subscriber.error(this.thrownError);\n    } else if (this.isStopped) {\n      subscriber.complete();\n    }\n\n    return subscription;\n  }\n\n  _getNow() {\n    return (this.scheduler || queue).now();\n  }\n\n  _trimBufferThenGetEvents() {\n    const now = this._getNow();\n\n    const _bufferSize = this._bufferSize;\n    const _windowTime = this._windowTime;\n    const _events = this._events;\n    const eventsCount = _events.length;\n    let spliceCount = 0;\n\n    while (spliceCount < eventsCount) {\n      if (now - _events[spliceCount].time < _windowTime) {\n        break;\n      }\n\n      spliceCount++;\n    }\n\n    if (eventsCount > _bufferSize) {\n      spliceCount = Math.max(spliceCount, eventsCount - _bufferSize);\n    }\n\n    if (spliceCount > 0) {\n      _events.splice(0, spliceCount);\n    }\n\n    return _events;\n  }\n\n}\n\nclass ReplayEvent {\n  constructor(time, value) {\n    this.time = time;\n    this.value = value;\n  }\n\n} //# sourceMappingURL=ReplaySubject.js.map","map":null,"metadata":{},"sourceType":"module"}