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backend/vendor/symfony/property-access/PropertyPathIterator.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\PropertyAccess;
+
+/**
+ * Traverses a property path and provides additional methods to find out
+ * information about the current element.
+ *
+ * @author Bernhard Schussek <bschussek@gmail.com>
+ *
+ * @extends \ArrayIterator<int, string>
+ */
+class PropertyPathIterator extends \ArrayIterator implements PropertyPathIteratorInterface
+{
+    public function __construct(
+        protected PropertyPathInterface $path,
+    ) {
+        parent::__construct($path->getElements());
+    }
+
+    public function isIndex(): bool
+    {
+        return $this->path->isIndex($this->key());
+    }
+
+    public function isProperty(): bool
+    {
+        return $this->path->isProperty($this->key());
+    }
+}