[Serializer] Fix that it will never reach DOMNode

TNAJanssen · web-flow · commit 141d9ee149aa · 2020-07-29T17:05:52.000+02:00
diff --git a/src/Symfony/Component/Serializer/Encoder/XmlEncoder.php b/src/Symfony/Component/Serializer/Encoder/XmlEncoder.php
@@ -488,6 +488,9 @@ private function selectNodeType(\DOMNode $node, $val)
             $node->appendChild($child);
         } elseif ($val instanceof \Traversable) {
             $this->buildXml($node, $val);
+        } elseif ($val instanceof \DOMNode) {
+            $child = $this->dom->importNode($val, true);
+            $node->appendChild($child);
         } elseif (\is_object($val)) {
             if (null === $this->serializer) {
                 throw new BadMethodCallException(sprintf('The serializer needs to be set to allow "%s()" to be used with object data.', __METHOD__));
@@ -502,9 +505,6 @@ private function selectNodeType(\DOMNode $node, $val)
             return $this->appendText($node, $val);
         } elseif (\is_bool($val)) {
             return $this->appendText($node, (int) $val);
-        } elseif ($val instanceof \DOMNode) {
-            $child = $this->dom->importNode($val, true);
-            $node->appendChild($child);
         }
 
         return true;
