The start of something beautiful

vendor/symfony/dependency-injection/Argument/ServiceClosureArgument.php

@@ -0,0 +1,43 @@
+<?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\DependencyInjection\Argument;
+
+use Symfony\Component\DependencyInjection\Exception\InvalidArgumentException;
+
+/**
+ * Represents a service wrapped in a memoizing closure.
+ *
+ * @author Nicolas Grekas <p@tchwork.com>
+ */
+class ServiceClosureArgument implements ArgumentInterface
+{
+    private array $values;
+
+    public function __construct(mixed $value)
+    {
+        $this->values = [$value];
+    }
+
+    public function getValues(): array
+    {
+        return $this->values;
+    }
+
+    public function setValues(array $values): void
+    {
+        if ([0] !== array_keys($values)) {
+            throw new InvalidArgumentException('A ServiceClosureArgument must hold one and only one value.');
+        }
+
+        $this->values = $values;
+    }
+}