react-native/Libraries/vendor/emitter/EmitterSubscription.js

43 lines
1.5 KiB
JavaScript

/**
* @generated SignedSource<<d17b6e5d9b7118fb0ed9169f579e5b8a>>
*
* !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
* !! This file is a check-in of a static_upstream project! !!
* !! !!
* !! You should not modify this file directly. Instead: !!
* !! 1) Use `fjs use-upstream` to temporarily replace this with !!
* !! the latest version from upstream. !!
* !! 2) Make your changes, test them, etc. !!
* !! 3) Use `fjs push-upstream` to copy your changes back to !!
* !! static_upstream. !!
* !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
*
* @providesModule EmitterSubscription
* @typechecks
*/
'use strict';
var EventSubscription = require('EventSubscription');
/**
* EmitterSubscription represents a subscription with listener and context data.
*/
class EmitterSubscription extends EventSubscription {
/**
* @param {EventSubscriptionVendor} subscriber - The subscriber that controls
* this subscription
* @param {function} listener - Function to invoke when the specified event is
* emitted
* @param {*} context - Optional context object to use when invoking the
* listener
*/
constructor(subscriber: EventSubscriptionVendor, listener, context: ?Object) {
super(subscriber);
this.listener = listener;
this.context = context;
}
}
module.exports = EmitterSubscription;