vendor/symfony/routing/Loader/AttributeClassLoader.php line 86
<?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\Routing\Loader;use Doctrine\Common\Annotations\Reader;use Symfony\Component\Config\Loader\LoaderInterface;use Symfony\Component\Config\Loader\LoaderResolverInterface;use Symfony\Component\Config\Resource\FileResource;use Symfony\Component\Routing\Attribute\Route as RouteAnnotation;use Symfony\Component\Routing\Route;use Symfony\Component\Routing\RouteCollection;/*** AttributeClassLoader loads routing information from a PHP class and its methods.** You need to define an implementation for the configureRoute() method. Most of the* time, this method should define some PHP callable to be called for the route* (a controller in MVC speak).** The #[Route] attribute can be set on the class (for global parameters),* and on each method.** The #[Route] attribute main value is the route path. The attribute also* recognizes several parameters: requirements, options, defaults, schemes,* methods, host, and name. The name parameter is mandatory.* Here is an example of how you should be able to use it:** #[Route('/Blog')]* class Blog* {* #[Route('/', name: 'blog_index')]* public function index()* {* }* #[Route('/{id}', name: 'blog_post', requirements: ["id" => '\d+'])]* public function show()* {* }* }** @author Fabien Potencier <fabien@symfony.com>* @author Alexander M. Turek <me@derrabus.de>* @author Alexandre Daubois <alex.daubois@gmail.com>*/abstract class AttributeClassLoader implements LoaderInterface{/*** @var Reader|null** @deprecated in Symfony 6.4, this property will be removed in Symfony 7.*/protected $reader;/*** @var string|null*/protected $env;/*** @var string*/protected $routeAnnotationClass = RouteAnnotation::class;/*** @var int*/protected $defaultRouteIndex = 0;private bool $hasDeprecatedAnnotations = false;/*** @param string|null $env*/public function __construct($env = null){if ($env instanceof Reader || null === $env && \func_num_args() > 1 && null !== func_get_arg(1)) {trigger_deprecation('symfony/routing', '6.4', 'Passing an instance of "%s" as first and the environment as second argument to "%s" is deprecated. Pass the environment as first argument instead.', Reader::class, __METHOD__);$this->reader = $env;$env = \func_num_args() > 1 ? func_get_arg(1) : null;}if (\is_string($env) || null === $env) {$this->env = $env;} elseif ($env instanceof \Stringable || \is_scalar($env)) {$this->env = (string) $env;} else {throw new \TypeError(__METHOD__.sprintf(': Parameter $env was expected to be a string or null, "%s" given.', get_debug_type($env)));}}/*** Sets the annotation class to read route properties from.** @return void*/public function setRouteAnnotationClass(string $class){$this->routeAnnotationClass = $class;}/*** @throws \InvalidArgumentException When route can't be parsed*/public function load(mixed $class, ?string $type = null): RouteCollection{if (!class_exists($class)) {throw new \InvalidArgumentException(sprintf('Class "%s" does not exist.', $class));}$class = new \ReflectionClass($class);if ($class->isAbstract()) {throw new \InvalidArgumentException(sprintf('Attributes from class "%s" cannot be read as it is abstract.', $class->getName()));}$this->hasDeprecatedAnnotations = false;try {$globals = $this->getGlobals($class);$collection = new RouteCollection();$collection->addResource(new FileResource($class->getFileName()));if ($globals['env'] && $this->env !== $globals['env']) {return $collection;}$fqcnAlias = false;foreach ($class->getMethods() as $method) {$this->defaultRouteIndex = 0;$routeNamesBefore = array_keys($collection->all());foreach ($this->getAnnotations($method) as $annot) {$this->addRoute($collection, $annot, $globals, $class, $method);if ('__invoke' === $method->name) {$fqcnAlias = true;}}if (1 === $collection->count() - \count($routeNamesBefore)) {$newRouteName = current(array_diff(array_keys($collection->all()), $routeNamesBefore));if ($newRouteName !== $aliasName = sprintf('%s::%s', $class->name, $method->name)) {$collection->addAlias($aliasName, $newRouteName);}}}if (0 === $collection->count() && $class->hasMethod('__invoke')) {$globals = $this->resetGlobals();foreach ($this->getAnnotations($class) as $annot) {$this->addRoute($collection, $annot, $globals, $class, $class->getMethod('__invoke'));$fqcnAlias = true;}}if ($fqcnAlias && 1 === $collection->count()) {$invokeRouteName = key($collection->all());if ($invokeRouteName !== $class->name) {$collection->addAlias($class->name, $invokeRouteName);}if ($invokeRouteName !== $aliasName = sprintf('%s::__invoke', $class->name)) {$collection->addAlias($aliasName, $invokeRouteName);}}if ($this->hasDeprecatedAnnotations) {trigger_deprecation('symfony/routing', '6.4', 'Class "%s" uses Doctrine Annotations to configure routes, which is deprecated. Use PHP attributes instead.', $class->getName());}} finally {$this->hasDeprecatedAnnotations = false;}return $collection;}/*** @param RouteAnnotation $annot or an object that exposes a similar interface** @return void*/protected function addRoute(RouteCollection $collection, object $annot, array $globals, \ReflectionClass $class, \ReflectionMethod $method){if ($annot->getEnv() && $annot->getEnv() !== $this->env) {return;}$name = $annot->getName() ?? $this->getDefaultRouteName($class, $method);$name = $globals['name'].$name;$requirements = $annot->getRequirements();foreach ($requirements as $placeholder => $requirement) {if (\is_int($placeholder)) {throw new \InvalidArgumentException(sprintf('A placeholder name must be a string (%d given). Did you forget to specify the placeholder key for the requirement "%s" of route "%s" in "%s::%s()"?', $placeholder, $requirement, $name, $class->getName(), $method->getName()));}}$defaults = array_replace($globals['defaults'], $annot->getDefaults());$requirements = array_replace($globals['requirements'], $requirements);$options = array_replace($globals['options'], $annot->getOptions());$schemes = array_unique(array_merge($globals['schemes'], $annot->getSchemes()));$methods = array_unique(array_merge($globals['methods'], $annot->getMethods()));$host = $annot->getHost() ?? $globals['host'];$condition = $annot->getCondition() ?? $globals['condition'];$priority = $annot->getPriority() ?? $globals['priority'];$path = $annot->getLocalizedPaths() ?: $annot->getPath();$prefix = $globals['localized_paths'] ?: $globals['path'];$paths = [];if (\is_array($path)) {if (!\is_array($prefix)) {foreach ($path as $locale => $localePath) {$paths[$locale] = $prefix.$localePath;}} elseif ($missing = array_diff_key($prefix, $path)) {throw new \LogicException(sprintf('Route to "%s" is missing paths for locale(s) "%s".', $class->name.'::'.$method->name, implode('", "', array_keys($missing))));} else {foreach ($path as $locale => $localePath) {if (!isset($prefix[$locale])) {throw new \LogicException(sprintf('Route to "%s" with locale "%s" is missing a corresponding prefix in class "%s".', $method->name, $locale, $class->name));}$paths[$locale] = $prefix[$locale].$localePath;}}} elseif (\is_array($prefix)) {foreach ($prefix as $locale => $localePrefix) {$paths[$locale] = $localePrefix.$path;}} else {$paths[] = $prefix.$path;}foreach ($method->getParameters() as $param) {if (isset($defaults[$param->name]) || !$param->isDefaultValueAvailable()) {continue;}foreach ($paths as $locale => $path) {if (preg_match(sprintf('/\{%s(?:<.*?>)?\}/', preg_quote($param->name)), $path)) {if (\is_scalar($defaultValue = $param->getDefaultValue()) || null === $defaultValue) {$defaults[$param->name] = $defaultValue;} elseif ($defaultValue instanceof \BackedEnum) {$defaults[$param->name] = $defaultValue->value;}break;}}}foreach ($paths as $locale => $path) {$route = $this->createRoute($path, $defaults, $requirements, $options, $host, $schemes, $methods, $condition);$this->configureRoute($route, $class, $method, $annot);if (0 !== $locale) {$route->setDefault('_locale', $locale);$route->setRequirement('_locale', preg_quote($locale));$route->setDefault('_canonical_route', $name);$collection->add($name.'.'.$locale, $route, $priority);} else {$collection->add($name, $route, $priority);}}}public function supports(mixed $resource, ?string $type = null): bool{if ('annotation' === $type) {trigger_deprecation('symfony/routing', '6.4', 'The "annotation" route type is deprecated, use the "attribute" route type instead.');}return \is_string($resource) && preg_match('/^(?:\\\\?[a-zA-Z_\x7f-\xff][a-zA-Z0-9_\x7f-\xff]*)+$/', $resource) && (!$type || \in_array($type, ['annotation', 'attribute'], true));}public function setResolver(LoaderResolverInterface $resolver): void{}public function getResolver(): LoaderResolverInterface{}/*** Gets the default route name for a class method.** @return string*/protected function getDefaultRouteName(\ReflectionClass $class, \ReflectionMethod $method){$name = str_replace('\\', '_', $class->name).'_'.$method->name;$name = \function_exists('mb_strtolower') && preg_match('//u', $name) ? mb_strtolower($name, 'UTF-8') : strtolower($name);if ($this->defaultRouteIndex > 0) {$name .= '_'.$this->defaultRouteIndex;}++$this->defaultRouteIndex;return $name;}/*** @return array<string, mixed>*/protected function getGlobals(\ReflectionClass $class){$globals = $this->resetGlobals();$annot = null;if ($attribute = $class->getAttributes($this->routeAnnotationClass, \ReflectionAttribute::IS_INSTANCEOF)[0] ?? null) {$annot = $attribute->newInstance();}if (!$annot && $annot = $this->reader?->getClassAnnotation($class, $this->routeAnnotationClass)) {$this->hasDeprecatedAnnotations = true;}if ($annot) {if (null !== $annot->getName()) {$globals['name'] = $annot->getName();}if (null !== $annot->getPath()) {$globals['path'] = $annot->getPath();}$globals['localized_paths'] = $annot->getLocalizedPaths();if (null !== $annot->getRequirements()) {$globals['requirements'] = $annot->getRequirements();}if (null !== $annot->getOptions()) {$globals['options'] = $annot->getOptions();}if (null !== $annot->getDefaults()) {$globals['defaults'] = $annot->getDefaults();}if (null !== $annot->getSchemes()) {$globals['schemes'] = $annot->getSchemes();}if (null !== $annot->getMethods()) {$globals['methods'] = $annot->getMethods();}if (null !== $annot->getHost()) {$globals['host'] = $annot->getHost();}if (null !== $annot->getCondition()) {$globals['condition'] = $annot->getCondition();}$globals['priority'] = $annot->getPriority() ?? 0;$globals['env'] = $annot->getEnv();foreach ($globals['requirements'] as $placeholder => $requirement) {if (\is_int($placeholder)) {throw new \InvalidArgumentException(sprintf('A placeholder name must be a string (%d given). Did you forget to specify the placeholder key for the requirement "%s" in "%s"?', $placeholder, $requirement, $class->getName()));}}}return $globals;}private function resetGlobals(): array{return ['path' => null,'localized_paths' => [],'requirements' => [],'options' => [],'defaults' => [],'schemes' => [],'methods' => [],'host' => '','condition' => '','name' => '','priority' => 0,'env' => null,];}/*** @return Route*/protected function createRoute(string $path, array $defaults, array $requirements, array $options, ?string $host, array $schemes, array $methods, ?string $condition){return new Route($path, $defaults, $requirements, $options, $host, $schemes, $methods, $condition);}/*** @return void*/abstract protected function configureRoute(Route $route, \ReflectionClass $class, \ReflectionMethod $method, object $annot);/*** @return iterable<int, RouteAnnotation>*/private function getAnnotations(\ReflectionClass|\ReflectionMethod $reflection): iterable{foreach ($reflection->getAttributes($this->routeAnnotationClass, \ReflectionAttribute::IS_INSTANCEOF) as $attribute) {yield $attribute->newInstance();}if (!$this->reader) {return;}$annotations = $reflection instanceof \ReflectionClass? $this->reader->getClassAnnotations($reflection): $this->reader->getMethodAnnotations($reflection);foreach ($annotations as $annotation) {if ($annotation instanceof $this->routeAnnotationClass) {$this->hasDeprecatedAnnotations = true;yield $annotation;}}}}if (!class_exists(AnnotationClassLoader::class, false)) {class_alias(AttributeClassLoader::class, AnnotationClassLoader::class);}