all files / firebase/utils/emitter/ EventSubscription.js

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
201×
 
 
 
 
 
 
 
 
 
 
2×
 
/* eslint-disable */
/**
 * Copyright (c) 2015-present, Facebook, Inc.
 * All rights reserved.
 *
 * This source code is licensed under the BSD-style license found in the
 * LICENSE file in the root directory of this source tree. An additional grant
 * of patent rights can be found in the PATENTS file in the same directory.
 *
 * @flow
 */
'use strict';
 
import type EventSubscriptionVendor from './EventSubscriptionVendor';
 
/**
 * EventSubscription represents a subscription to a particular event. It can
 * remove its own subscription.
 */
class EventSubscription {
 
  eventType: string;
  key: number;
  subscriber: EventSubscriptionVendor;
 
  /**
   * @param {EventSubscriptionVendor} subscriber the subscriber that controls
   *   this subscription.
   */
  constructor(subscriber: EventSubscriptionVendor) {
    this.subscriber = subscriber;
  }
 
  /**
   * Removes this subscription from the subscriber that controls it.
   */
  remove() {
    this.subscriber.removeSubscription(this);
  }
}
 
module.exports = EventSubscription;