42 lines
1.3 KiB
PHP
42 lines
1.3 KiB
PHP
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<?php
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/*
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* This file is part of the Symfony package.
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*
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* (c) Fabien Potencier <fabien@symfony.com>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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namespace Symfony\Component\DependencyInjection\Compiler;
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use Symfony\Component\DependencyInjection\Alias;
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use Symfony\Component\DependencyInjection\ContainerBuilder;
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use Symfony\Component\DependencyInjection\Exception\InvalidArgumentException;
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/**
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* Sets a service to be an alias of another one, given a format pattern.
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*/
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class AutoAliasServicePass implements CompilerPassInterface
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{
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/**
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* {@inheritdoc}
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*/
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public function process(ContainerBuilder $container)
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{
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foreach ($container->findTaggedServiceIds('auto_alias') as $serviceId => $tags) {
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foreach ($tags as $tag) {
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if (!isset($tag['format'])) {
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throw new InvalidArgumentException(sprintf('Missing tag information "format" on auto_alias service "%s".', $serviceId));
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}
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$aliasId = $container->getParameterBag()->resolveValue($tag['format']);
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if ($container->hasDefinition($aliasId) || $container->hasAlias($aliasId)) {
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$container->setAlias($serviceId, new Alias($aliasId, true));
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}
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}
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}
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}
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}
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