<?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\DependencyInjection\Compiler;

use Symfony\Component\DependencyInjection\ContainerBuilder;

/**

 * Remove private aliases from the container. They were only used to establish

 * dependencies between services, and these dependencies have been resolved in

 * one of the previous passes.

 *

 * @author Johannes M. Schmitt <schmittjoh@gmail.com>

 */

class RemovePrivateAliasesPass implements CompilerPassInterface

{

    /**

     * Removes private aliases from the ContainerBuilder

     *

     * @param ContainerBuilder $container

     */

    public function process(ContainerBuilder $container)

    {

        $compiler = $container->getCompiler();

        $formatter = $compiler->getLoggingFormatter();

        foreach ($container->getAliases() as $id => $alias) {

            if ($alias->isPublic()) {

                continue;

            }

            $container->removeAlias($id);

            $compiler->addLogMessage($formatter->formatRemoveService($this, $id, 'private alias'));

        }

    }

}