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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 a variadic argument's values from the request attributes.
*
* @author Iltar van der Berg <kjarli@gmail.com>
*/
final class VariadicValueResolver implements ArgumentValueResolverInterface
{
/**
* {@inheritdoc}
*/
public function supports(Request $request, ArgumentMetadata $argument)
{
return $argument->isVariadic() && $request->attributes->has($argument->getName());
}
/**
* {@inheritdoc}
*/
public function resolve(Request $request, ArgumentMetadata $argument)
{
$values = $request->attributes->get($argument->getName());
if (!is_array($values)) {
throw new \InvalidArgumentException(sprintf('The action argument "...$%1$s" is required to be an array, the request attribute "%1$s" contains a type of "%2$s" instead.', $argument->getName(), gettype($values)));
}
foreach ($values as $value) {
yield $value;
}
}
}
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