1<?php
2
3/*
4 * This file is part of the Symfony package.
5 *
6 * (c) Fabien Potencier <fabien@symfony.com>
7 *
8 * For the full copyright and license information, please view the LICENSE
9 * file that was distributed with this source code.
10 */
11
12namespace Symfony\Component\DependencyInjection\Compiler;
13
14use Symfony\Component\DependencyInjection\ContainerBuilder;
15
16/**
17 * Remove private aliases from the container. They were only used to establish
18 * dependencies between services, and these dependencies have been resolved in
19 * one of the previous passes.
20 *
21 * @author Johannes M. Schmitt <schmittjoh@gmail.com>
22 */
23class RemovePrivateAliasesPass implements CompilerPassInterface
24{
25    /**
26     * Removes private aliases from the ContainerBuilder.
27     */
28    public function process(ContainerBuilder $container)
29    {
30        foreach ($container->getAliases() as $id => $alias) {
31            if ($alias->isPublic()) {
32                continue;
33            }
34
35            $container->removeAlias($id);
36            $container->log($this, sprintf('Removed service "%s"; reason: private alias.', $id));
37        }
38    }
39}
40