* * For the full copyright and license information, please view the LICENSE * file that was distributed with this source code. */ namespace Symfony\Component\HttpKernel\ControllerMetadata; /** * Builds {@see ArgumentMetadata} objects based on the given Controller. * * @author Iltar van der Berg */ final class ArgumentMetadataFactory implements ArgumentMetadataFactoryInterface { public function createArgumentMetadata(string|object|array $controller, ?\ReflectionFunctionAbstract $reflector = null): array { $arguments = []; $reflector ??= new \ReflectionFunction($controller(...)); $controllerName = $this->getPrettyName($reflector); foreach ($reflector->getParameters() as $param) { $attributes = []; foreach ($param->getAttributes() as $reflectionAttribute) { if (class_exists($reflectionAttribute->getName())) { $attributes[] = $reflectionAttribute->newInstance(); } } $arguments[] = new ArgumentMetadata($param->getName(), $this->getType($param), $param->isVariadic(), $param->isDefaultValueAvailable(), $param->isDefaultValueAvailable() ? $param->getDefaultValue() : null, $param->allowsNull(), $attributes, $controllerName); } return $arguments; } /** * Returns an associated type to the given parameter if available. */ private function getType(\ReflectionParameter $parameter): ?string { if (!$type = $parameter->getType()) { return null; } $name = $type instanceof \ReflectionNamedType ? $type->getName() : (string) $type; return match (strtolower($name)) { 'self' => $parameter->getDeclaringClass()?->name, 'parent' => get_parent_class($parameter->getDeclaringClass()?->name ?? '') ?: null, default => $name, }; } private function getPrettyName(\ReflectionFunctionAbstract $r): string { $name = $r->name; if ($r instanceof \ReflectionMethod) { return $r->class.'::'.$name; } if ($r->isAnonymous() || !$class = $r->getClosureCalledClass()) { return $name; } return $class->name.'::'.$name; } }