<?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\Alias;
use Symfony\Component\DependencyInjection\Reference;
use Symfony\Component\DependencyInjection\ContainerBuilder;
/**
* Replaces all references to aliases with references to the actual service.
*
* @author Johannes M. Schmitt <schmittjoh@gmail.com>
*/
class ResolveReferencesToAliasesPass implements CompilerPassInterface {
private $container;
/**
* Processes the ContainerBuilder to replace references to aliases with actual service references.
*
* @param ContainerBuilder $container
*/
public function process(ContainerBuilder $container) {
$this->container = $container;
foreach ($container
->getDefinitions() as $definition) {
if ($definition
->isSynthetic() || $definition
->isAbstract()) {
continue;
}
$definition
->setArguments($this
->processArguments($definition
->getArguments()));
$definition
->setMethodCalls($this
->processArguments($definition
->getMethodCalls()));
$definition
->setProperties($this
->processArguments($definition
->getProperties()));
}
foreach ($container
->getAliases() as $id => $alias) {
$aliasId = (string) $alias;
if ($aliasId !== ($defId = $this
->getDefinitionId($aliasId))) {
$container
->setAlias($id, new Alias($defId, $alias
->isPublic()));
}
}
}
/**
* Processes the arguments to replace aliases.
*
* @param array $arguments An array of References
*
* @return array An array of References
*/
private function processArguments(array $arguments) {
foreach ($arguments as $k => $argument) {
if (is_array($argument)) {
$arguments[$k] = $this
->processArguments($argument);
}
elseif ($argument instanceof Reference) {
$defId = $this
->getDefinitionId($id = (string) $argument);
if ($defId !== $id) {
$arguments[$k] = new Reference($defId, $argument
->getInvalidBehavior(), $argument
->isStrict());
}
}
}
return $arguments;
}
/**
* Resolves an alias into a definition id.
*
* @param string $id The definition or alias id to resolve
*
* @return string The definition id with aliases resolved
*/
private function getDefinitionId($id) {
while ($this->container
->hasAlias($id)) {
$id = (string) $this->container
->getAlias($id);
}
return $id;
}
}
Name | Description |
---|---|
ResolveReferencesToAliasesPass | Replaces all references to aliases with references to the actual service. |