86 lines
2.9 KiB
PHP
86 lines
2.9 KiB
PHP
<?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;
|
|
|
|
/**
|
|
* Removes unused service definitions from the container.
|
|
*
|
|
* @author Johannes M. Schmitt <schmittjoh@gmail.com>
|
|
*/
|
|
class RemoveUnusedDefinitionsPass implements RepeatablePassInterface
|
|
{
|
|
private $repeatedPass;
|
|
|
|
/**
|
|
* {@inheritdoc}
|
|
*/
|
|
public function setRepeatedPass(RepeatedPass $repeatedPass)
|
|
{
|
|
$this->repeatedPass = $repeatedPass;
|
|
}
|
|
|
|
/**
|
|
* Processes the ContainerBuilder to remove unused definitions.
|
|
*/
|
|
public function process(ContainerBuilder $container)
|
|
{
|
|
$graph = $container->getCompiler()->getServiceReferenceGraph();
|
|
|
|
$hasChanged = false;
|
|
foreach ($container->getDefinitions() as $id => $definition) {
|
|
if ($definition->isPublic() || $definition->isPrivate()) {
|
|
continue;
|
|
}
|
|
|
|
if ($graph->hasNode($id)) {
|
|
$edges = $graph->getNode($id)->getInEdges();
|
|
$referencingAliases = array();
|
|
$sourceIds = array();
|
|
foreach ($edges as $edge) {
|
|
if ($edge->isWeak()) {
|
|
continue;
|
|
}
|
|
$node = $edge->getSourceNode();
|
|
$sourceIds[] = $node->getId();
|
|
|
|
if ($node->isAlias()) {
|
|
$referencingAliases[] = $node->getValue();
|
|
}
|
|
}
|
|
$isReferenced = (\count(array_unique($sourceIds)) - \count($referencingAliases)) > 0;
|
|
} else {
|
|
$referencingAliases = array();
|
|
$isReferenced = false;
|
|
}
|
|
|
|
if (1 === \count($referencingAliases) && false === $isReferenced) {
|
|
$container->setDefinition((string) reset($referencingAliases), $definition);
|
|
$definition->setPublic(!$definition->isPrivate());
|
|
$definition->setPrivate(reset($referencingAliases)->isPrivate());
|
|
$container->removeDefinition($id);
|
|
$container->log($this, sprintf('Removed service "%s"; reason: replaces alias %s.', $id, reset($referencingAliases)));
|
|
} elseif (0 === \count($referencingAliases) && false === $isReferenced) {
|
|
$container->removeDefinition($id);
|
|
$container->resolveEnvPlaceholders(serialize($definition));
|
|
$container->log($this, sprintf('Removed service "%s"; reason: unused.', $id));
|
|
$hasChanged = true;
|
|
}
|
|
}
|
|
|
|
if ($hasChanged) {
|
|
$this->repeatedPass->setRepeat();
|
|
}
|
|
}
|
|
}
|