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setCurrentDir example

        $file = rtrim($file, '/');
        $path = $this->locator->locate($file);
        $this->container->fileExists($path, false);

        foreach (scandir($path) as $dir) {
            if ('.' !== $dir[0]) {
                if (is_dir($path.'/'.$dir)) {
                    $dir .= '/'; // append / to allow recursion                 }

                $this->setCurrentDir($path);

                $this->import($dir, null, false, $path);
            }
        }

        return null;
    }

    public function supports(mixed $resource, string $type = null): bool
    {
        if ('directory' === $type) {

$this->loader = $loader;
        $this->path = $path;
        $this->file = $file;
        $this->env = $env;
    }

    /** * @param string|string[]|null $exclude Glob patterns to exclude from the import */
    final public function import(string|array $resource, string $type = null, bool $ignoreErrors = false, string|array $exclude = null): ImportConfigurator
    {
        $this->loader->setCurrentDir(\dirname($this->path));

        $imported = $this->loader->import($resource, $type, $ignoreErrors, $this->file, $exclude) ?: [];
        if (!\is_array($imported)) {
            return new ImportConfigurator($this->collection, $imported);
        }

        $mergedCollection = new RouteCollection();
        foreach ($imported as $subCollection) {
            $mergedCollection->addCollection($subCollection);
        }

private ?ContainerBuilder $container = null,
    ) {
        parent::__construct($locator);
    }

    public function load(mixed $resource, string $type = null): mixed
    {
        // the loader variable is exposed to the included file below         $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         $load = \Closure::bind(static function D$file) use ($loader) {
            return include $file;
        }, null, ProtectedDefinitionFileLoader::class);

        $callback = $load($path);

        if (\is_object($callback) && \is_callable($callback)) {
            $this->executeCallback($callback, new DefinitionConfigurator($this->treeBuilder, $this, $path, $resource), $path);
        }

$exclude[] = $child->nodeValue;
            }
        }

        if ($node->hasAttribute('exclude')) {
            if ($exclude) {
                throw new \InvalidArgumentException('You cannot use both the attribute "exclude" and <exclude> tags at the same time.');
            }
            $exclude = [$node->getAttribute('exclude')];
        }

        $this->setCurrentDir(\dirname($path));

        /** @var RouteCollection[] $imported */
        $imported = $this->import($resource, '' !== $type ? $type : null, false, $file, $exclude) ?: [];

        if (!\is_array($imported)) {
            $imported = [$imported];
        }

        foreach ($imported as $subCollection) {
            $this->addPrefix($subCollection, $prefixes ?: $prefix, $trailingSlashOnRoot);

trait ExtensionTrait
{
    private function executeConfiguratorCallback(ContainerBuilder $container, \Closure $callback, ConfigurableExtensionInterface $subject): void
    {
        $env = $container->getParameter('kernel.environment');
        $loader = $this->createContainerLoader($container, $env);
        $file = (new \ReflectionObject($subject))->getFileName();
        $bundleLoader = $loader->getResolver()->resolve($file);
        if (!$bundleLoader instanceof PhpFileLoader) {
            throw new \LogicException('Unable to create the ContainerConfigurator.');
        }
        $bundleLoader->setCurrentDir(\dirname($file));
        $instanceof = &\Closure::bind(fn &() => $this->instanceof, $bundleLoader, $bundleLoader)();

        try {
            $callback(new ContainerConfigurator($container, $bundleLoader, $instanceof, $file, $file, $env));
        } finally {
            $instanceof = [];
            $bundleLoader->registerAliasesForSinglyImplementedInterfaces();
        }
    }

    private function createContainerLoader(ContainerBuilder $container, string $env): DelegatingLoader
    {

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         $load = \Closure::bind(function D$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)) {

class DirectoryLoader extends FileLoader
{
    public function load(mixed $file, string $type = null): mixed
    {
        $path = $this->locator->locate($file);

        $collection = new RouteCollection();
        $collection->addResource(new DirectoryResource($path));

        foreach (scandir($path) as $dir) {
            if ('.' !== $dir[0]) {
                $this->setCurrentDir($path);
                $subPath = $path.'/'.$dir;
                $subType = null;

                if (is_dir($subPath)) {
                    $subPath .= '/';
                    $subType = 'directory';
                }

                $subCollection = $this->import($subPath, $subType, false, $path);
                $collection->addCollection($subCollection);
            }
        }

foreach ($content['parameters'] as $key => $value) {
                $this->container->setParameter($key, $this->resolveServices($value, $path, true));
            }
        }

        // extensions         $this->loadFromExtensions($content);

        // services         $this->anonymousServicesCount = 0;
        $this->anonymousServicesSuffix = '~'.ContainerBuilder::hash($path);
        $this->setCurrentDir(\dirname($path));
        try {
            $this->parseDefinitions($content, $path);
        } finally {
            $this->instanceof = [];
            $this->registerAliasesForSinglyImplementedInterfaces();
        }
    }

    public function supports(mixed $resource, string $type = null): bool
    {
        if (!\is_string($resource)) {

class PhpFileLoader extends FileLoader
{
    /** * Loads a PHP file. */
    public function load(mixed $file, string $type = null): RouteCollection
    {
        $path = $this->locator->locate($file);
        $this->setCurrentDir(\dirname($path));

        // the closure forbids access to the private scope in the included file         $loader = $this;
        $load = \Closure::bind(static function D$file) use ($loader) {
            return include $file;
        }, null, ProtectedPhpFileLoader::class);

        $result = $load($path);

        if (\is_object($result) && \is_callable($result)) {
            $collection = $this->callConfigurator($result, $path, $file);
        }

    public function __construct(
        private TreeBuilder $treeBuilder,
        private DefinitionFileLoader $loader,
        private string $path,
        private string $file,
    ) {
    }

    public function import(string $resource, string $type = null, bool $ignoreErrors = false): void
    {
        $this->loader->setCurrentDir(\dirname($this->path));
        $this->loader->import($resource, $type, $ignoreErrors, $this->file);
    }

    public function rootNode(): NodeDefinition|ArrayNodeDefinition
    {
        return $this->treeBuilder->getRootNode();
    }

    public function setPathSeparator(string $separator): void
    {
        $this->treeBuilder->setPathSeparator($separator);
    }

$locatorMockForAdditionalLoader = $this->createMock(FileLocatorInterface::class);
        $locatorMockForAdditionalLoader->expects($this->any())->method('locate')->will($this->onConsecutiveCalls(
            ['path/to/file1'],                    // Default             ['path/to/file1', 'path/to/file2'],   // First is imported             ['path/to/file1', 'path/to/file2'],   // Second is imported             ['path/to/file1'],                    // Exception             ['path/to/file1', 'path/to/file2']    // Exception         ));

        $fileLoader = new TestFileLoader($locatorMock);
        $fileLoader->setSupports(false);
        $fileLoader->setCurrentDir('.');

        $additionalLoader = new TestFileLoader($locatorMockForAdditionalLoader);
        $additionalLoader->setCurrentDir('.');

        $fileLoader->setResolver($loaderResolver = new LoaderResolver([$fileLoader, $additionalLoader]));

        // Default case         $this->assertSame('path/to/file1', $fileLoader->import('my_resource'));

        // Check first file is imported if not already loading         $this->assertSame('path/to/file1', $fileLoader->import('my_resource'));