4 * This file is part of the Symfony package.
6 * (c) Fabien Potencier <fabien@symfony.com>
8 * For the full copyright and license information, please view the LICENSE
9 * file that was distributed with this source code.
12 namespace Symfony\Component\HttpKernel\DependencyInjection;
14 use Psr\Log\LoggerInterface;
15 use Symfony\Component\HttpKernel\Log\Logger;
16 use Symfony\Component\DependencyInjection\Compiler\CompilerPassInterface;
17 use Symfony\Component\DependencyInjection\ContainerBuilder;
20 * Registers the default logger if necessary.
22 * @author Kévin Dunglas <dunglas@gmail.com>
24 class LoggerPass implements CompilerPassInterface
29 public function process(ContainerBuilder $container)
31 $container->setAlias(LoggerInterface::class, 'logger')
34 if ($container->has('logger')) {
38 $container->register('logger', Logger::class)