From d861d8589cbbc50fc1920d154a9262d62e9d5695 Mon Sep 17 00:00:00 2001
From: Corey Farrell <git@cfware.com>
Date: Tue, 16 Apr 2019 16:11:18 -0400
Subject: [PATCH] fix: Do not crash when nyc is run inside itself.

Ref istanbuljs/nyc#1068
---
 index.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/index.js b/index.js
index 08ad9e2..93cbd9e 100644
--- a/index.js
+++ b/index.js
@@ -223,7 +223,7 @@ class ProcessDB {
     infos.forEach(info => {
       if (info.parent) {
         const parentInfo = infoByUid.get(info.parent)
-        if (parentInfo.children.indexOf(info.uuid) === -1) {
+        if (parentInfo && !parentInfo.children.includes(info.uuid)) {
           parentInfo.children.push(info.uuid)
         }
       }