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cacme/vendor/workerman/validation/library/Rules/Optional.php

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+<?php
+
+/*
+ * Copyright (c) Alexandre Gomes Gaigalas <alganet@gmail.com>
+ * SPDX-License-Identifier: MIT
+ */
+
+declare(strict_types=1);
+
+namespace Respect\Validation\Rules;
+
+use Respect\Validation\Helpers\CanValidateUndefined;
+
+/**
+ * @author Henrique Moody <henriquemoody@gmail.com>
+ */
+final class Optional extends AbstractWrapper
+{
+    use CanValidateUndefined;
+
+    /**
+     * {@inheritDoc}
+     */
+    public function assert($input): void
+    {
+        if ($this->isUndefined($input)) {
+            return;
+        }
+
+        parent::assert($input);
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public function check($input): void
+    {
+        if ($this->isUndefined($input)) {
+            return;
+        }
+
+        parent::check($input);
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public function validate($input): bool
+    {
+        if ($this->isUndefined($input)) {
+            return true;
+        }
+
+        return parent::validate($input);
+    }
+}