From f44ed22063b277346b3a90a851164fa792932246 Mon Sep 17 00:00:00 2001
From: Matthew Brown <github@muglug.com>
Date: Mon, 8 Jan 2018 20:12:24 -0500
Subject: [PATCH] Fix null return

---
 src/Psalm/Type/Union.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/Psalm/Type/Union.php b/src/Psalm/Type/Union.php
index 6fcb99c94..0e39e00d5 100644
--- a/src/Psalm/Type/Union.php
+++ b/src/Psalm/Type/Union.php
@@ -191,7 +191,7 @@ class Union
         }
 
         if (!$types) {
-            return null;
+            return false;
         }
 
         $atomic_type = array_values($types)[0];