vendor/symfony/config/Loader/FileLoader.php line 163
<?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\Config\Loader;use Symfony\Component\Config\Exception\FileLoaderImportCircularReferenceException;use Symfony\Component\Config\Exception\FileLocatorFileNotFoundException;use Symfony\Component\Config\Exception\LoaderLoadException;use Symfony\Component\Config\FileLocatorInterface;use Symfony\Component\Config\Resource\FileExistenceResource;use Symfony\Component\Config\Resource\GlobResource;/*** FileLoader is the abstract class used by all built-in loaders that are file based.** @author Fabien Potencier <fabien@symfony.com>*/abstract class FileLoader extends Loader{protected static $loading = [];protected $locator;private ?string $currentDir = null;public function __construct(FileLocatorInterface $locator, string $env = null){$this->locator = $locator;parent::__construct($env);}/*** Sets the current directory.*/public function setCurrentDir(string $dir){$this->currentDir = $dir;}/*** Returns the file locator used by this loader.*/public function getLocator(): FileLocatorInterface{return $this->locator;}/*** Imports a resource.** @param mixed $resource A Resource* @param string|null $type The resource type or null if unknown* @param bool $ignoreErrors Whether to ignore import errors or not* @param string|null $sourceResource The original resource importing the new resource* @param string|string[]|null $exclude Glob patterns to exclude from the import** @throws LoaderLoadException* @throws FileLoaderImportCircularReferenceException* @throws FileLocatorFileNotFoundException*/public function import(mixed $resource, string $type = null, bool $ignoreErrors = false, string $sourceResource = null, string|array $exclude = null){if (\is_string($resource) && \strlen($resource) !== ($i = strcspn($resource, '*?{[')) && !str_contains($resource, "\n")) {$excluded = [];foreach ((array) $exclude as $pattern) {foreach ($this->glob($pattern, true, $_, false, true) as $path => $info) {// normalize Windows slashes and remove trailing slashes$excluded[rtrim(str_replace('\\', '/', $path), '/')] = true;}}$ret = [];$isSubpath = 0 !== $i && str_contains(substr($resource, 0, $i), '/');foreach ($this->glob($resource, false, $_, $ignoreErrors || !$isSubpath, false, $excluded) as $path => $info) {if (null !== $res = $this->doImport($path, 'glob' === $type ? null : $type, $ignoreErrors, $sourceResource)) {$ret[] = $res;}$isSubpath = true;}if ($isSubpath) {return isset($ret[1]) ? $ret : ($ret[0] ?? null);}}return $this->doImport($resource, $type, $ignoreErrors, $sourceResource);}/*** @internal*/protected function glob(string $pattern, bool $recursive, array|GlobResource &$resource = null, bool $ignoreErrors = false, bool $forExclusion = false, array $excluded = []){if (\strlen($pattern) === $i = strcspn($pattern, '*?{[')) {$prefix = $pattern;$pattern = '';} elseif (0 === $i || !str_contains(substr($pattern, 0, $i), '/')) {$prefix = '.';$pattern = '/'.$pattern;} else {$prefix = \dirname(substr($pattern, 0, 1 + $i));$pattern = substr($pattern, \strlen($prefix));}try {$prefix = $this->locator->locate($prefix, $this->currentDir, true);} catch (FileLocatorFileNotFoundException $e) {if (!$ignoreErrors) {throw $e;}$resource = [];foreach ($e->getPaths() as $path) {$resource[] = new FileExistenceResource($path);}return;}$resource = new GlobResource($prefix, $pattern, $recursive, $forExclusion, $excluded);yield from $resource;}private function doImport(mixed $resource, string $type = null, bool $ignoreErrors = false, string $sourceResource = null){try {$loader = $this->resolve($resource, $type);if ($loader instanceof DirectoryAwareLoaderInterface) {$loader = $loader->forDirectory($this->currentDir);}if (!$loader instanceof self) {return $loader->load($resource, $type);}if (null !== $this->currentDir) {$resource = $loader->getLocator()->locate($resource, $this->currentDir, false);}$resources = \is_array($resource) ? $resource : [$resource];for ($i = 0; $i < $resourcesCount = \count($resources); ++$i) {if (isset(self::$loading[$resources[$i]])) {if ($i == $resourcesCount - 1) {throw new FileLoaderImportCircularReferenceException(array_keys(self::$loading));}} else {$resource = $resources[$i];break;}}self::$loading[$resource] = true;try {$ret = $loader->load($resource, $type);} finally {unset(self::$loading[$resource]);}return $ret;} catch (FileLoaderImportCircularReferenceException $e) {throw $e;} catch (\Exception $e) {if (!$ignoreErrors) {// prevent embedded imports from nesting multiple exceptionsif ($e instanceof LoaderLoadException) {throw $e;}throw new LoaderLoadException($resource, $sourceResource, 0, $e, $type);}}return null;}}