allow null string in StringExtension

Fix #3250
twigphp · Feb 6, 2020 · 9905d44 · 9905d44
1 parent b71ca9a
commit 9905d44
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/src/StringExtension.php b/src/StringExtension.php
@@ -24,8 +24,8 @@ public function getFilters()
         ];
     }
 
-    public function createUnicodeString(string $text): UnicodeString
+    public function createUnicodeString(?string $text): UnicodeString
     {
-        return new UnicodeString($text);
+        return new UnicodeString($text ?? '');
     }
 }