vendor/symfony/dependency-injection/Loader/PhpFileLoader.php line 146
<?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\Loader;use Symfony\Component\Config\Builder\ConfigBuilderGenerator;use Symfony\Component\Config\Builder\ConfigBuilderGeneratorInterface;use Symfony\Component\Config\Builder\ConfigBuilderInterface;use Symfony\Component\Config\FileLocatorInterface;use Symfony\Component\DependencyInjection\Attribute\When;use Symfony\Component\DependencyInjection\Container;use Symfony\Component\DependencyInjection\ContainerBuilder;use Symfony\Component\DependencyInjection\Exception\InvalidArgumentException;use Symfony\Component\DependencyInjection\Extension\ConfigurationExtensionInterface;use Symfony\Component\DependencyInjection\Extension\ExtensionInterface;use Symfony\Component\DependencyInjection\Loader\Configurator\ContainerConfigurator;/*** PhpFileLoader loads service definitions from a PHP file.** The PHP file is required and the $container variable can be* used within the file to change the container.** @author Fabien Potencier <fabien@symfony.com>*/class PhpFileLoader extends FileLoader{protected $autoRegisterAliasesForSinglyImplementedInterfaces = false;private ?ConfigBuilderGeneratorInterface $generator;public function __construct(ContainerBuilder $container, FileLocatorInterface $locator, string $env = null, ConfigBuilderGeneratorInterface $generator = null){parent::__construct($container, $locator, $env);$this->generator = $generator;}public function load(mixed $resource, string $type = null): mixed{// the container and loader variables are exposed to the included file below$container = $this->container;$loader = $this;$path = $this->locator->locate($resource);$this->setCurrentDir(\dirname($path));$this->container->fileExists($path);// the closure forbids access to the private scope in the included file$load = \Closure::bind(function ($path, $env) use ($container, $loader, $resource, $type) {return include $path;}, $this, ProtectedPhpFileLoader::class);try {$callback = $load($path, $this->env);if (\is_object($callback) && \is_callable($callback)) {$this->executeCallback($callback, new ContainerConfigurator($this->container, $this, $this->instanceof, $path, $resource, $this->env), $path);}} finally {$this->instanceof = [];$this->registerAliasesForSinglyImplementedInterfaces();}return null;}public function supports(mixed $resource, string $type = null): bool{if (!\is_string($resource)) {return false;}if (null === $type && 'php' === pathinfo($resource, \PATHINFO_EXTENSION)) {return true;}return 'php' === $type;}/*** Resolve the parameters to the $callback and execute it.*/private function executeCallback(callable $callback, ContainerConfigurator $containerConfigurator, string $path){$callback = $callback(...);$arguments = [];$configBuilders = [];$r = new \ReflectionFunction($callback);$attribute = null;foreach ($r->getAttributes(When::class, \ReflectionAttribute::IS_INSTANCEOF) as $attribute) {if ($this->env === $attribute->newInstance()->env) {$attribute = null;break;}}if (null !== $attribute) {return;}foreach ($r->getParameters() as $parameter) {$reflectionType = $parameter->getType();if (!$reflectionType instanceof \ReflectionNamedType) {throw new \InvalidArgumentException(sprintf('Could not resolve argument "$%s" for "%s". You must typehint it (for example with "%s" or "%s").', $parameter->getName(), $path, ContainerConfigurator::class, ContainerBuilder::class));}$type = $reflectionType->getName();switch ($type) {case ContainerConfigurator::class:$arguments[] = $containerConfigurator;break;case ContainerBuilder::class:$arguments[] = $this->container;break;case FileLoader::class:case self::class:$arguments[] = $this;break;case 'string':if (null !== $this->env && 'env' === $parameter->getName()) {$arguments[] = $this->env;break;}// no breakdefault:try {$configBuilder = $this->configBuilder($type);} catch (InvalidArgumentException|\LogicException $e) {throw new \InvalidArgumentException(sprintf('Could not resolve argument "%s" for "%s".', $type.' $'.$parameter->getName(), $path), 0, $e);}$configBuilders[] = $configBuilder;$arguments[] = $configBuilder;}}// Force load ContainerConfigurator to make env(), param() etc available.class_exists(ContainerConfigurator::class);$callback(...$arguments);/** @var ConfigBuilderInterface $configBuilder */foreach ($configBuilders as $configBuilder) {$containerConfigurator->extension($configBuilder->getExtensionAlias(), $configBuilder->toArray());}}/*** @param string $namespace FQCN string for a class implementing ConfigBuilderInterface*/private function configBuilder(string $namespace): ConfigBuilderInterface{if (!class_exists(ConfigBuilderGenerator::class)) {throw new \LogicException('You cannot use the config builder as the Config component is not installed. Try running "composer require symfony/config".');}if (null === $this->generator) {throw new \LogicException('You cannot use the ConfigBuilders without providing a class implementing ConfigBuilderGeneratorInterface.');}// If class exists and implements ConfigBuilderInterfaceif (class_exists($namespace) && is_subclass_of($namespace, ConfigBuilderInterface::class)) {return new $namespace();}// If it does not start with Symfony\Config\ we don't know how to handle thisif (!str_starts_with($namespace, 'Symfony\\Config\\')) {throw new InvalidArgumentException(sprintf('Could not find or generate class "%s".', $namespace));}// Try to get the extension alias$alias = Container::underscore(substr($namespace, 15, -6));if (str_contains($alias, '\\')) {throw new InvalidArgumentException('You can only use "root" ConfigBuilders from "Symfony\\Config\\" namespace. Nested classes like "Symfony\\Config\\Framework\\CacheConfig" cannot be used.');}if (!$this->container->hasExtension($alias)) {$extensions = array_filter(array_map(function (ExtensionInterface $ext) { return $ext->getAlias(); }, $this->container->getExtensions()));throw new InvalidArgumentException(sprintf('There is no extension able to load the configuration for "%s". Looked for namespace "%s", found "%s".', $namespace, $alias, $extensions ? implode('", "', $extensions) : 'none'));}$extension = $this->container->getExtension($alias);if (!$extension instanceof ConfigurationExtensionInterface) {throw new \LogicException(sprintf('You cannot use the config builder for "%s" because the extension does not implement "%s".', $namespace, ConfigurationExtensionInterface::class));}$configuration = $extension->getConfiguration([], $this->container);$loader = $this->generator->build($configuration);return $loader();}}/*** @internal*/final class ProtectedPhpFileLoader extends PhpFileLoader{}