vendor/symfony/http-kernel/Controller/ArgumentResolver.php line 51

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  1. <?php
  2. /*
  3.  * This file is part of the Symfony package.
  4.  *
  5.  * (c) Fabien Potencier <fabien@symfony.com>
  6.  *
  7.  * For the full copyright and license information, please view the LICENSE
  8.  * file that was distributed with this source code.
  9.  */
  10. namespace Symfony\Component\HttpKernel\Controller;
  11. use Symfony\Component\HttpFoundation\Request;
  12. use Symfony\Component\HttpKernel\Controller\ArgumentResolver\DefaultValueResolver;
  13. use Symfony\Component\HttpKernel\Controller\ArgumentResolver\RequestAttributeValueResolver;
  14. use Symfony\Component\HttpKernel\Controller\ArgumentResolver\RequestValueResolver;
  15. use Symfony\Component\HttpKernel\Controller\ArgumentResolver\SessionValueResolver;
  16. use Symfony\Component\HttpKernel\Controller\ArgumentResolver\VariadicValueResolver;
  17. use Symfony\Component\HttpKernel\ControllerMetadata\ArgumentMetadataFactory;
  18. use Symfony\Component\HttpKernel\ControllerMetadata\ArgumentMetadataFactoryInterface;
  19. /**
  20.  * Responsible for resolving the arguments passed to an action.
  21.  *
  22.  * @author Iltar van der Berg <kjarli@gmail.com>
  23.  */
  24. final class ArgumentResolver implements ArgumentResolverInterface
  25. {
  26.     private $argumentMetadataFactory;
  27.     private $argumentValueResolvers;
  28.     /**
  29.      * @param iterable<mixed, ArgumentValueResolverInterface> $argumentValueResolvers
  30.      */
  31.     public function __construct(ArgumentMetadataFactoryInterface $argumentMetadataFactory nulliterable $argumentValueResolvers = [])
  32.     {
  33.         $this->argumentMetadataFactory $argumentMetadataFactory ?? new ArgumentMetadataFactory();
  34.         $this->argumentValueResolvers $argumentValueResolvers ?: self::getDefaultArgumentValueResolvers();
  35.     }
  36.     /**
  37.      * {@inheritdoc}
  38.      */
  39.     public function getArguments(Request $request, callable $controller): array
  40.     {
  41.         $arguments = [];
  42.         foreach ($this->argumentMetadataFactory->createArgumentMetadata($controller) as $metadata) {
  43.             foreach ($this->argumentValueResolvers as $resolver) {
  44.                 if (!$resolver->supports($request$metadata)) {
  45.                     continue;
  46.                 }
  47.                 $resolved $resolver->resolve($request$metadata);
  48.                 $atLeastOne false;
  49.                 foreach ($resolved as $append) {
  50.                     $atLeastOne true;
  51.                     $arguments[] = $append;
  52.                 }
  53.                 if (!$atLeastOne) {
  54.                     throw new \InvalidArgumentException(sprintf('"%s::resolve()" must yield at least one value.'get_debug_type($resolver)));
  55.                 }
  56.                 // continue to the next controller argument
  57.                 continue 2;
  58.             }
  59.             $representative $controller;
  60.             if (\is_array($representative)) {
  61.                 $representative sprintf('%s::%s()', \get_class($representative[0]), $representative[1]);
  62.             } elseif (\is_object($representative)) {
  63.                 $representative = \get_class($representative);
  64.             }
  65.             throw new \RuntimeException(sprintf('Controller "%s" requires that you provide a value for the "$%s" argument. Either the argument is nullable and no null value has been provided, no default value has been provided or because there is a non optional argument after this one.'$representative$metadata->getName()));
  66.         }
  67.         return $arguments;
  68.     }
  69.     /**
  70.      * @return iterable<int, ArgumentValueResolverInterface>
  71.      */
  72.     public static function getDefaultArgumentValueResolvers(): iterable
  73.     {
  74.         return [
  75.             new RequestAttributeValueResolver(),
  76.             new RequestValueResolver(),
  77.             new SessionValueResolver(),
  78.             new DefaultValueResolver(),
  79.             new VariadicValueResolver(),
  80.         ];
  81.     }
  82. }