| Server IP : 79.136.114.73 / Your IP : 216.73.216.55 Web Server : Apache/2.4.7 (Ubuntu) PHP/5.5.9-1ubuntu4.29 OpenSSL/1.0.1f System : Linux b8009 3.13.0-170-generic #220-Ubuntu SMP Thu May 9 12:40:49 UTC 2019 x86_64 User : www-data ( 33) PHP Version : 5.5.9-1ubuntu4.29 Disable Function : pcntl_alarm,pcntl_fork,pcntl_waitpid,pcntl_wait,pcntl_wifexited,pcntl_wifstopped,pcntl_wifsignaled,pcntl_wexitstatus,pcntl_wtermsig,pcntl_wstopsig,pcntl_signal,pcntl_signal_dispatch,pcntl_get_last_error,pcntl_strerror,pcntl_sigprocmask,pcntl_sigwaitinfo,pcntl_sigtimedwait,pcntl_exec,pcntl_getpriority,pcntl_setpriority, MySQL : ON | cURL : ON | WGET : ON | Perl : ON | Python : ON | Sudo : ON | Pkexec : ON Directory : /var/www/appsrv.astacus.se/forge/node_modules/eslint/lib/util/ |
Upload File : |
/**
* @fileoverview A variant of EventEmitter which does not give listeners information about each other
* @author Teddy Katz
*/
"use strict";
//------------------------------------------------------------------------------
// Typedefs
//------------------------------------------------------------------------------
/**
* An event emitter
* @typedef {Object} SafeEmitter
* @property {function(eventName: string, listenerFunc: Function): void} on Adds a listener for a given event name
* @property {function(eventName: string, arg1?: any, arg2?: any, arg3?: any)} emit Emits an event with a given name.
* This calls all the listeners that were listening for that name, with `arg1`, `arg2`, and `arg3` as arguments.
* @property {function(): string[]} eventNames Gets the list of event names that have registered listeners.
*/
/**
* Creates an object which can listen for and emit events.
* This is similar to the EventEmitter API in Node's standard library, but it has a few differences.
* The goal is to allow multiple modules to attach arbitrary listeners to the same emitter, without
* letting the modules know about each other at all.
* 1. It has no special keys like `error` and `newListener`, which would allow modules to detect when
* another module throws an error or registers a listener.
* 2. It calls listener functions without any `this` value. (`EventEmitter` calls listeners with a
* `this` value of the emitter instance, which would give listeners access to other listeners.)
* @returns {SafeEmitter} An emitter
*/
module.exports = () => {
const listeners = Object.create(null);
return Object.freeze({
on(eventName, listener) {
if (eventName in listeners) {
listeners[eventName].push(listener);
} else {
listeners[eventName] = [listener];
}
},
emit(eventName, ...args) {
if (eventName in listeners) {
listeners[eventName].forEach(listener => listener(...args));
}
},
eventNames() {
return Object.keys(listeners);
}
});
};