From 44e31d19a6e81eb6ede34ef40c5687247d6eaaf3 Mon Sep 17 00:00:00 2001
From: Fabien Villepinte <fabien.villepinte@gmail.com>
Date: Sat, 4 Sep 2021 17:00:00 +0200
Subject: [PATCH] Fix undefined index

---
 src/DocBlock/Tags/InvalidTag.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/DocBlock/Tags/InvalidTag.php b/src/DocBlock/Tags/InvalidTag.php
index 3b9984c..4e6abb8 100644
--- a/src/DocBlock/Tags/InvalidTag.php
+++ b/src/DocBlock/Tags/InvalidTag.php
@@ -87,7 +87,7 @@ final class InvalidTag implements Tag
             if (isset($trace[0]['args'])) {
                 $trace = array_map(
                     function (array $call): array {
-                        $call['args'] = array_map([$this, 'flattenArguments'], $call['args']);
+                        $call['args'] = array_map([$this, 'flattenArguments'], $call['args'] ?? []);
 
                         return $call;
                     },