/usr/share/php/Symfony/Component/HttpKernel/DependencyInjection/RemoveEmptyControllerArgumentLocatorsPass.php is in php-symfony-http-kernel 3.4.6+dfsg-1.
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/*
* 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\DependencyInjection;
use Symfony\Component\DependencyInjection\Compiler\CompilerPassInterface;
use Symfony\Component\DependencyInjection\ContainerBuilder;
/**
* Removes empty service-locators registered for ServiceValueResolver.
*
* @author Nicolas Grekas <p@tchwork.com>
*/
class RemoveEmptyControllerArgumentLocatorsPass implements CompilerPassInterface
{
private $resolverServiceId;
public function __construct($resolverServiceId = 'argument_resolver.service')
{
$this->resolverServiceId = $resolverServiceId;
}
public function process(ContainerBuilder $container)
{
if (false === $container->hasDefinition($this->resolverServiceId)) {
return;
}
$serviceResolver = $container->getDefinition($this->resolverServiceId);
$controllerLocator = $container->getDefinition((string) $serviceResolver->getArgument(0));
$controllers = $controllerLocator->getArgument(0);
foreach ($controllers as $controller => $argumentRef) {
$argumentLocator = $container->getDefinition((string) $argumentRef->getValues()[0]);
if (!$argumentLocator->getArgument(0)) {
// remove empty argument locators
$reason = sprintf('Removing service-argument resolver for controller "%s": no corresponding services exist for the referenced types.', $controller);
} else {
// any methods listed for call-at-instantiation cannot be actions
$reason = false;
$action = substr(strrchr($controller, ':'), 1);
$id = substr($controller, 0, -1 - strlen($action));
$controllerDef = $container->getDefinition($id);
foreach ($controllerDef->getMethodCalls() as list($method)) {
if (0 === strcasecmp($action, $method)) {
$reason = sprintf('Removing method "%s" of service "%s" from controller candidates: the method is called at instantiation, thus cannot be an action.', $action, $id);
break;
}
}
if (!$reason) {
if ($controllerDef->getClass() === $id) {
$controllers[$id.'::'.$action] = $argumentRef;
}
if ('__invoke' === $action) {
$controllers[$id] = $argumentRef;
}
continue;
}
}
unset($controllers[$controller]);
$container->log($this, $reason);
}
$controllerLocator->replaceArgument(0, $controllers);
}
}
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