Developer
<?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 Psr\Container\ContainerInterface;
use Symfony\Component\DependencyInjection\Exception\RuntimeException;
use Symfony\Component\HttpFoundation\Request;
use Symfony\Component\HttpKernel\Controller\ArgumentValueResolverInterface;
use Symfony\Component\HttpKernel\ControllerMetadata\ArgumentMetadata;
/**
* Yields a service keyed by _controller and argument name.
*
* @author Nicolas Grekas <p@tchwork.com>
*/
final class ServiceValueResolver implements ArgumentValueResolverInterface
{
private $container;
public function __construct(ContainerInterface $container)
{
$this->container = $container;
}
/**
* {@inheritdoc}
*/
public function supports(Request $request, ArgumentMetadata $argument): bool
{
$controller = $request->attributes->get('_controller');
if (\is_array($controller) && \is_callable($controller, true) && \is_string($controller[0])) {
$controller = $controller[0].'::'.$controller[1];
} elseif (!\is_string($controller) || '' === $controller) {
return false;
}
if ('\\' === $controller[0]) {
$controller = ltrim($controller, '\\');
}
if (!$this->container->has($controller) && false !== $i = strrpos($controller, ':')) {
$controller = substr($controller, 0, $i).strtolower(substr($controller, $i));
}
return $this->container->has($controller) && $this->container->get($controller)->has($argument->getName());
}
/**
* {@inheritdoc}
*/
public function resolve(Request $request, ArgumentMetadata $argument): iterable
{
if (\is_array($controller = $request->attributes->get('_controller'))) {
$controller = $controller[0].'::'.$controller[1];
}
if ('\\' === $controller[0]) {
$controller = ltrim($controller, '\\');
}
if (!$this->container->has($controller)) {
$i = strrpos($controller, ':');
$controller = substr($controller, 0, $i).strtolower(substr($controller, $i));
}
try {
yield $this->container->get($controller)->get($argument->getName());
} catch (RuntimeException $e) {
$what = sprintf('argument $%s of "%s()"', $argument->getName(), $controller);
$message = preg_replace('/service "\.service_locator\.[^"]++"/', $what, $e->getMessage());
if ($e->getMessage() === $message) {
$message = sprintf('Cannot resolve %s: %s', $what, $message);
}
$r = new \ReflectionProperty($e, 'message');
$r->setAccessible(true);
$r->setValue($e, $message);
throw $e;
}
}
}
Developer
To ensure a smooth integration process and optimal performance, follow these best practices: