The start of something beautiful

vendor/symfony/dependency-injection/LazyProxy/Instantiator/InstantiatorInterface.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\DependencyInjection\LazyProxy\Instantiator;
+
+use Symfony\Component\DependencyInjection\ContainerInterface;
+use Symfony\Component\DependencyInjection\Definition;
+
+/**
+ * Lazy proxy instantiator, capable of instantiating a proxy given a container, the
+ * service definitions and a callback that produces the real service instance.
+ *
+ * @author Marco Pivetta <ocramius@gmail.com>
+ */
+interface InstantiatorInterface
+{
+    /**
+     * Instantiates a proxy object.
+     *
+     * @param string            $id               Identifier of the requested service
+     * @param callable(object=) $realInstantiator A callback that is capable of producing the real service instance
+     */
+    public function instantiateProxy(ContainerInterface $container, Definition $definition, string $id, callable $realInstantiator): object;
+}

vendor/symfony/dependency-injection/LazyProxy/Instantiator/LazyServiceInstantiator.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\DependencyInjection\LazyProxy\Instantiator;
+
+use Symfony\Component\DependencyInjection\ContainerInterface;
+use Symfony\Component\DependencyInjection\Definition;
+use Symfony\Component\DependencyInjection\Exception\InvalidArgumentException;
+use Symfony\Component\DependencyInjection\LazyProxy\PhpDumper\LazyServiceDumper;
+
+/**
+ * @author Nicolas Grekas <p@tchwork.com>
+ */
+final class LazyServiceInstantiator implements InstantiatorInterface
+{
+    public function instantiateProxy(ContainerInterface $container, Definition $definition, string $id, callable $realInstantiator): object
+    {
+        $dumper = new LazyServiceDumper();
+
+        if (!$dumper->isProxyCandidate($definition, $asGhostObject, $id)) {
+            throw new InvalidArgumentException(sprintf('Cannot instantiate lazy proxy for service "%s".', $id));
+        }
+
+        if (!class_exists($proxyClass = $dumper->getProxyClass($definition, $asGhostObject), false)) {
+            eval($dumper->getProxyCode($definition, $id));
+        }
+
+        return $asGhostObject ? $proxyClass::createLazyGhost($realInstantiator) : $proxyClass::createLazyProxy($realInstantiator);
+    }
+}

vendor/symfony/dependency-injection/LazyProxy/Instantiator/RealServiceInstantiator.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\DependencyInjection\LazyProxy\Instantiator;
+
+use Symfony\Component\DependencyInjection\ContainerInterface;
+use Symfony\Component\DependencyInjection\Definition;
+
+/**
+ * Noop proxy instantiator - produces the real service instead of a proxy instance.
+ *
+ * @author Marco Pivetta <ocramius@gmail.com>
+ */
+class RealServiceInstantiator implements InstantiatorInterface
+{
+    public function instantiateProxy(ContainerInterface $container, Definition $definition, string $id, callable $realInstantiator): object
+    {
+        return $realInstantiator();
+    }
+}