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- <?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\HttpKernel\Controller\ArgumentResolver;
- use Symfony\Component\HttpFoundation\Request;
- use Symfony\Component\HttpKernel\Controller\ArgumentValueResolverInterface;
- use Symfony\Component\HttpKernel\ControllerMetadata\ArgumentMetadata;
- /**
- * Yields the default value defined in the action signature when no value has been given.
- *
- * @author Iltar van der Berg <kjarli@gmail.com>
- */
- final class DefaultValueResolver implements ArgumentValueResolverInterface
- {
- /**
- * {@inheritdoc}
- */
- public function supports(Request $request, ArgumentMetadata $argument): bool
- {
- return $argument->hasDefaultValue() || (null !== $argument->getType() && $argument->isNullable() && !$argument->isVariadic());
- }
- /**
- * {@inheritdoc}
- */
- public function resolve(Request $request, ArgumentMetadata $argument): iterable
- {
- yield $argument->hasDefaultValue() ? $argument->getDefaultValue() : null;
- }
- }
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