default services conflit ?

old.vendor/symfony/serializer/Extractor/ObjectPropertyListExtractor.php

@@ -0,0 +1,39 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Serializer\Extractor;
+
+use Symfony\Component\PropertyInfo\PropertyListExtractorInterface;
+
+/**
+ * @author David Maicher <mail@dmaicher.de>
+ */
+final class ObjectPropertyListExtractor implements ObjectPropertyListExtractorInterface
+{
+    private $propertyListExtractor;
+    private $objectClassResolver;
+
+    public function __construct(PropertyListExtractorInterface $propertyListExtractor, callable $objectClassResolver = null)
+    {
+        $this->propertyListExtractor = $propertyListExtractor;
+        $this->objectClassResolver = $objectClassResolver;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getProperties($object, array $context = []): ?array
+    {
+        $class = $this->objectClassResolver ? ($this->objectClassResolver)($object) : \get_class($object);
+
+        return $this->propertyListExtractor->getProperties($class, $context);
+    }
+}

old.vendor/symfony/serializer/Extractor/ObjectPropertyListExtractorInterface.php

@@ -0,0 +1,27 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Serializer\Extractor;
+
+/**
+ * @author David Maicher <mail@dmaicher.de>
+ */
+interface ObjectPropertyListExtractorInterface
+{
+    /**
+     * Gets the list of properties available for the given object.
+     *
+     * @param object $object
+     *
+     * @return string[]|null
+     */
+    public function getProperties($object, array $context = []): ?array;
+}