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vendor/symfony/clock/ClockAwareTrait.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\Clock;
+
+use Psr\Clock\ClockInterface;
+use Symfony\Contracts\Service\Attribute\Required;
+
+/**
+ * A trait to help write time-sensitive classes.
+ *
+ * @author Nicolas Grekas <p@tchwork.com>
+ */
+trait ClockAwareTrait
+{
+    private readonly ClockInterface $clock;
+
+    #[Required]
+    public function setClock(ClockInterface $clock): void
+    {
+        $this->clock = $clock;
+    }
+
+    protected function now(): \DateTimeImmutable
+    {
+        return ($this->clock ??= new Clock())->now();
+    }
+}