1 files changed, 83 insertions, 0 deletions
diff --git a/tools/eslint/node_modules/escope/node_modules/es6-map/node_modules/event-emitter/benchmark/many-on.js b/tools/eslint/node_modules/escope/node_modules/es6-map/node_modules/event-emitter/benchmark/many-on.js
new file mode 100644
index 0000000000..e09bfde848
--- /dev/null
+++ b/tools/eslint/node_modules/escope/node_modules/es6-map/node_modules/event-emitter/benchmark/many-on.js
@@ -0,0 +1,83 @@
+'use strict';
+
+// Benchmark comparing performance of event emit for many listeners
+// To run it, do following in memoizee package path:
+//
+// $ npm install eventemitter2 signals
+// $ node benchmark/many-on.js
+
+var forEach    = require('es5-ext/object/for-each')
+  , pad        = require('es5-ext/string/#/pad')
+
+  , now = Date.now
+
+  , time, count = 1000000, i, data = {}
+  , ee, native, ee2, signals, a = {}, b = {};
+
+ee = (function () {
+	var ee = require('../')();
+	ee.on('test', function () { return arguments; });
+	ee.on('test', function () { return arguments; });
+	return ee.on('test', function () { return arguments; });
+}());
+
+native = (function () {
+	var ee = require('events');
+	ee = new ee.EventEmitter();
+	ee.on('test', function () { return arguments; });
+	ee.on('test', function () { return arguments; });
+	return ee.on('test', function () { return arguments; });
+}());
+
+ee2 = (function () {
+	var ee = require('eventemitter2');
+	ee = new ee.EventEmitter2();
+	ee.on('test', function () { return arguments; });
+	ee.on('test', function () { return arguments; });
+	return ee.on('test', function () { return arguments; });
+}());
+
+signals = (function () {
+	var Signal = require('signals')
+	  , ee = { test: new Signal() };
+	ee.test.add(function () { return arguments; });
+	ee.test.add(function () { return arguments; });
+	ee.test.add(function () { return arguments; });
+	return ee;
+}());
+
+console.log("Emit for 3 listeners", "x" + count + ":\n");
+
+i = count;
+time = now();
+while (i--) {
+	ee.emit('test', a, b);
+}
+data["event-emitter (this implementation)"] = now() - time;
+
+i = count;
+time = now();
+while (i--) {
+	native.emit('test', a, b);
+}
+data["EventEmitter (Node.js native)"] = now() - time;
+
+i = count;
+time = now();
+while (i--) {
+	ee2.emit('test', a, b);
+}
+data.EventEmitter2 = now() - time;
+
+i = count;
+time = now();
+while (i--) {
+	signals.test.dispatch(a, b);
+}
+data.Signals = now() - time;
+
+forEach(data, function (value, name, obj, index) {
+	console.log(index + 1 + ":",  pad.call(value, " ", 5), name);
+}, null, function (a, b) {
+	return this[a] - this[b];
+});