Ensure the default value is one of the type we're expecting to find

simplesamlphp · Jan 16, 2025 · a73db7e · a73db7e
1 parent 94db95a
commit a73db7e
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/src/AbstractElement.php b/src/AbstractElement.php
@@ -101,6 +101,8 @@ public static function getOptionalAttribute(
         string $type = StringValue::class,
         ?ValueTypeInterface $default = null,
     ): ?ValueTypeInterface {
+        Assert::nullOrIsInstanceOf($default, $type);
+
         if (!$xml->hasAttribute($name)) {
             return $default;
         }