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vendor/symfony/var-dumper/Cloner/Internal/NoDefault.php

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+<?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\VarDumper\Cloner\Internal;
+
+/**
+ * Flags a typed property that has no default value.
+ *
+ * This dummy object is used to distinguish a property with a default value of null
+ * from a property that is uninitialized by default.
+ *
+ * @internal
+ */
+enum NoDefault
+{
+    case NoDefault;
+}