Method _setIsEmitter

src/change_stream.ts:877–885

@internal

()

  /** @internal */
  private _setIsEmitter(): void {
    if (this.mode === 'iterator') {
      // TODO(NODE-3485): Replace with MongoChangeStreamModeError
      throw new MongoAPIError(
        'ChangeStream cannot be used as an EventEmitter after being used as an iterator'
      );
    }
    this.mode = 'emitter';
  }

  /** @internal */
  private _setIsIterator(): void {