From ddf746c816f11cd0a816db523ffa35b33baef152 Mon Sep 17 00:00:00 2001
From: Myles Borins <mylesborins@google.com>
Date: Thu, 22 Feb 2018 16:07:06 -0500
Subject: [PATCH] events: preset `usingDomains` to false

The line setting this was removed in a previous commit. This
potentially breaks code in the wild using this property.

Refs: https://github.com/nodejs/node/pull/17403#issuecomment-367814130
---
 lib/events.js                                | 2 ++
 test/parallel/test-event-emitter-subclass.js | 1 +
 2 files changed, 3 insertions(+)

diff --git a/lib/events.js b/lib/events.js
index aec30e7239d13d..1c697943371ace 100644
--- a/lib/events.js
+++ b/lib/events.js
@@ -31,6 +31,8 @@ module.exports = EventEmitter;
 // Backwards-compat with node 0.10.x
 EventEmitter.EventEmitter = EventEmitter;
 
+EventEmitter.usingDomains = false;
+
 EventEmitter.prototype._events = undefined;
 EventEmitter.prototype._eventsCount = 0;
 EventEmitter.prototype._maxListeners = undefined;
diff --git a/test/parallel/test-event-emitter-subclass.js b/test/parallel/test-event-emitter-subclass.js
index 5189c3aa13422f..094565197bd740 100644
--- a/test/parallel/test-event-emitter-subclass.js
+++ b/test/parallel/test-event-emitter-subclass.js
@@ -36,6 +36,7 @@ function MyEE(cb) {
 
 const myee = new MyEE(common.mustCall());
 
+myee.hasOwnProperty('usingDomains');
 
 util.inherits(ErrorEE, EventEmitter);
 function ErrorEE() {