74 lines
2.3 KiB
PHP
74 lines
2.3 KiB
PHP
<?php
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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\Reference;
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use Symfony\Component\DependencyInjection\Definition;
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use Symfony\Component\DependencyInjection\ContainerBuilder;
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/*
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* This file is part of the Symfony framework.
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*
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* (c) Fabien Potencier <fabien.potencier@symfony-project.com>
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*
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* This source file is subject to the MIT license that is bundled
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* with this source code in the file LICENSE.
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*/
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/**
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* Removes unused service definitions from the container.
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*
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* @author Johannes M. Schmitt <schmittjoh@gmail.com>
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*/
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class RemoveUnusedDefinitionsPass implements RepeatablePassInterface
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{
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protected $repeatedPass;
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protected $graph;
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public function setRepeatedPass(RepeatedPass $repeatedPass)
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{
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$this->repeatedPass = $repeatedPass;
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}
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public function process(ContainerBuilder $container)
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{
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$this->graph = $this->repeatedPass->getCompiler()->getServiceReferenceGraph();
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$hasChanged = false;
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foreach ($container->getDefinitions() as $id => $definition) {
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if ($definition->isPublic()) {
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continue;
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}
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if ($this->graph->hasNode($id)) {
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$edges = $this->graph->getNode($id)->getInEdges();
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$referencingAliases = array();
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foreach ($edges as $edge) {
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$node = $edge->getSourceNode();
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if ($node->isAlias()) {
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$referencingAlias[] = $node->getValue();
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}
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}
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$isReferenced = (count($edges) - count($referencingAliases)) > 0;
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} else {
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$referencingAliases = array();
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$isReferenced = false;
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}
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if (1 === count($referencingAliases) && false === $isReferenced) {
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$container->setDefinition((string) reset($referencingAliases), $definition);
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$definition->setPublic(true);
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$container->remove($id);
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} else if (0 === count($referencingAliases) && false === $isReferenced) {
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$container->remove($id);
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$hasChanged = true;
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}
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}
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if ($hasChanged) {
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$this->repeatedPass->setRepeat();
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}
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}
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} |