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vendor/symfony/framework-bundle/Routing/Attribute/AsRoutingConditionService.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\Bundle\FrameworkBundle\Routing\Attribute;
+
+use Symfony\Component\DependencyInjection\Attribute\AutoconfigureTag;
+
+/**
+ * Service tag to autoconfigure routing condition services.
+ *
+ * You can tag a service:
+ *
+ *     #[AsRoutingConditionService('foo')]
+ *     class SomeFooService
+ *     {
+ *         public function bar(): bool
+ *         {
+ *             // ...
+ *         }
+ *     }
+ *
+ * Then you can use the tagged service in the routing condition:
+ *
+ *     class PageController
+ *     {
+ *         #[Route('/page', condition: "service('foo').bar()")]
+ *         public function page(): Response
+ *         {
+ *             // ...
+ *         }
+ *     }
+ */
+#[\Attribute(\Attribute::TARGET_CLASS)]
+class AsRoutingConditionService extends AutoconfigureTag
+{
+    /**
+     * @param string|null $alias    The alias of the service to use it in routing condition expressions
+     * @param int         $priority Defines a priority that allows the routing condition service to override a service with the same alias
+     */
+    public function __construct(
+        ?string $alias = null,
+        int $priority = 0,
+    ) {
+        parent::__construct('routing.condition_service', ['alias' => $alias, 'priority' => $priority]);
+    }
+}