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[yaffs-website] / vendor / symfony / finder / Iterator / FilterIterator.php

diff --git a/vendor/symfony/finder/Iterator/FilterIterator.php b/vendor/symfony/finder/Iterator/FilterIterator.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\Finder\Iterator;
+
+/**
+ * This iterator just overrides the rewind method in order to correct a PHP bug,
+ * which existed before version 5.5.23/5.6.7.
+ *
+ * @see https://bugs.php.net/68557
+ *
+ * @author Alex Bogomazov
+ */
+abstract class FilterIterator extends \FilterIterator
+{
+    /**
+     * This is a workaround for the problem with \FilterIterator leaving inner \FilesystemIterator in wrong state after
+     * rewind in some cases.
+     *
+     * @see FilterIterator::rewind()
+     */
+    public function rewind()
+    {
+        if (PHP_VERSION_ID > 50607 || (PHP_VERSION_ID > 50523 && PHP_VERSION_ID < 50600)) {
+            parent::rewind();
+
+            return;
+        }
+
+        $iterator = $this;
+        while ($iterator instanceof \OuterIterator) {
+            $innerIterator = $iterator->getInnerIterator();
+
+            if ($innerIterator instanceof RecursiveDirectoryIterator) {
+                // this condition is necessary for iterators to work properly with non-local filesystems like ftp
+                if ($innerIterator->isRewindable()) {
+                    $innerIterator->next();
+                    $innerIterator->rewind();
+                }
+            } elseif ($innerIterator instanceof \FilesystemIterator) {
+                $innerIterator->next();
+                $innerIterator->rewind();
+            }
+
+            $iterator = $innerIterator;
+        }
+
+        parent::rewind();
+    }
+}