From 25751bedfe7b227dd3690a1e4bdee14fc9a2d517 Mon Sep 17 00:00:00 2001
From: Evan Lucas <evanlucas@me.com>
Date: Tue, 2 Feb 2016 19:57:21 -0600
Subject: [PATCH] node: deprecate process.EventEmitter

The comment stating it was deprecated was added in 2011 via
4ef8f06fe62edb74fded0e817266cb6398e69f36. It is time to
actually deprecate it.

PR-URL: https://github.com/nodejs/node/pull/5049
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Sakthipriyan Vairamani <thechargingvolcano@gmail.com>
Reviewed-By: Roman Reiss <me@silverwind.io>
---
 src/node.js | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/src/node.js b/src/node.js
index 1f29386a87714f..2856943e4a9e78 100644
--- a/src/node.js
+++ b/src/node.js
@@ -20,7 +20,17 @@
     });
     EventEmitter.call(process);
 
-    process.EventEmitter = EventEmitter; // process.EventEmitter is deprecated
+    let eeWarned = false;
+    Object.defineProperty(process, 'EventEmitter', {
+      get() {
+        const internalUtil = NativeModule.require('internal/util');
+        eeWarned = internalUtil.printDeprecationMessage(
+          `process.EventEmitter is deprecated. Use require('events') instead.`,
+          eeWarned
+        );
+        return EventEmitter;
+      }
+    });
 
     startup.setupProcessObject();