Firebase Update

express-server/node_modules/@protobufjs/eventemitter/index.js

@@ -0,0 +1,76 @@
+"use strict";
+module.exports = EventEmitter;
+
+/**
+ * Constructs a new event emitter instance.
+ * @classdesc A minimal event emitter.
+ * @memberof util
+ * @constructor
+ */
+function EventEmitter() {
+
+    /**
+     * Registered listeners.
+     * @type {Object.<string,*>}
+     * @private
+     */
+    this._listeners = {};
+}
+
+/**
+ * Registers an event listener.
+ * @param {string} evt Event name
+ * @param {function} fn Listener
+ * @param {*} [ctx] Listener context
+ * @returns {util.EventEmitter} `this`
+ */
+EventEmitter.prototype.on = function on(evt, fn, ctx) {
+    (this._listeners[evt] || (this._listeners[evt] = [])).push({
+        fn  : fn,
+        ctx : ctx || this
+    });
+    return this;
+};
+
+/**
+ * Removes an event listener or any matching listeners if arguments are omitted.
+ * @param {string} [evt] Event name. Removes all listeners if omitted.
+ * @param {function} [fn] Listener to remove. Removes all listeners of `evt` if omitted.
+ * @returns {util.EventEmitter} `this`
+ */
+EventEmitter.prototype.off = function off(evt, fn) {
+    if (evt === undefined)
+        this._listeners = {};
+    else {
+        if (fn === undefined)
+            this._listeners[evt] = [];
+        else {
+            var listeners = this._listeners[evt];
+            for (var i = 0; i < listeners.length;)
+                if (listeners[i].fn === fn)
+                    listeners.splice(i, 1);
+                else
+                    ++i;
+        }
+    }
+    return this;
+};
+
+/**
+ * Emits an event by calling its listeners with the specified arguments.
+ * @param {string} evt Event name
+ * @param {...*} args Arguments
+ * @returns {util.EventEmitter} `this`
+ */
+EventEmitter.prototype.emit = function emit(evt) {
+    var listeners = this._listeners[evt];
+    if (listeners) {
+        var args = [],
+            i = 1;
+        for (; i < arguments.length;)
+            args.push(arguments[i++]);
+        for (i = 0; i < listeners.length;)
+            listeners[i].fn.apply(listeners[i++].ctx, args);
+    }
+    return this;
+};