From ae43e90a675fa28a002cd6ec1276dd8dcb41e98e Mon Sep 17 00:00:00 2001
From: Esben Sparre Andreasen <esbena@github.com>
Date: Tue, 3 Mar 2020 14:00:48 +0100
Subject: [PATCH] JS: model `process` as an EventEmitter

---
 .../ql/src/semmle/javascript/frameworks/NodeJSLib.qll    | 9 +++++++++
 .../library-tests/frameworks/EventEmitter/test.expected  | 2 ++
 2 files changed, 11 insertions(+)

diff --git a/javascript/ql/src/semmle/javascript/frameworks/NodeJSLib.qll b/javascript/ql/src/semmle/javascript/frameworks/NodeJSLib.qll
index 9a5fe815d55..d10e219a001 100644
--- a/javascript/ql/src/semmle/javascript/frameworks/NodeJSLib.qll
+++ b/javascript/ql/src/semmle/javascript/frameworks/NodeJSLib.qll
@@ -935,6 +935,15 @@ module NodeJSLib {
     ImportedNodeJSEventEmitter() { this = getAnEventEmitterImport().getAnInstantiation() }
   }
 
+  /**
+   * The NodeJS `process` object as an EventEmitter subclass.
+   */
+  private class ProcessAsNodeJSEventEmitter extends NodeJSEventEmitter {
+    ProcessAsNodeJSEventEmitter() {
+      this = process()
+    }
+  }
+
   /**
    * A class that extends EventEmitter.
    */
diff --git a/javascript/ql/test/library-tests/frameworks/EventEmitter/test.expected b/javascript/ql/test/library-tests/frameworks/EventEmitter/test.expected
index c8526d5eecf..34a042bf626 100644
--- a/javascript/ql/test/library-tests/frameworks/EventEmitter/test.expected
+++ b/javascript/ql/test/library-tests/frameworks/EventEmitter/test.expected
@@ -12,3 +12,5 @@
 | tst.js:28:17:28:22 | "blab" | tst.js:25:16:25:20 | event |
 | tst.js:34:18:34:22 | "BOH" | tst.js:33:17:33:17 | x |
 | tst.js:40:20:40:27 | "yabity" | tst.js:39:19:39:19 | x |
+| tst.js:46:28:46:38 | 'FirstData' | tst.js:43:45:43:49 | first |
+| tst.js:47:29:47:40 | 'SecondData' | tst.js:44:37:44:42 | second |