95 lines
3.4 KiB
PHP
95 lines
3.4 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\ContainerBuilder;
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use Symfony\Component\DependencyInjection\Exception\InvalidArgumentException;
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use Symfony\Component\DependencyInjection\Exception\ServiceNotFoundException;
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use Symfony\Component\DependencyInjection\Reference;
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/**
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* Replaces aliases with actual service definitions, effectively removing these
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* aliases.
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*
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* @author Johannes M. Schmitt <schmittjoh@gmail.com>
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*/
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class ReplaceAliasByActualDefinitionPass extends AbstractRecursivePass
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{
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private $replacements;
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/**
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* Process the Container to replace aliases with service definitions.
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*
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* @throws InvalidArgumentException if the service definition does not exist
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*/
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public function process(ContainerBuilder $container)
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{
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// First collect all alias targets that need to be replaced
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$seenAliasTargets = [];
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$replacements = [];
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foreach ($container->getAliases() as $definitionId => $target) {
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$targetId = (string) $target;
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// Special case: leave this target alone
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if ('service_container' === $targetId) {
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continue;
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}
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// Check if target needs to be replaces
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if (isset($replacements[$targetId])) {
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$container->setAlias($definitionId, $replacements[$targetId])->setPublic($target->isPublic())->setPrivate($target->isPrivate());
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}
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// No need to process the same target twice
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if (isset($seenAliasTargets[$targetId])) {
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continue;
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}
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// Process new target
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$seenAliasTargets[$targetId] = true;
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try {
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$definition = $container->getDefinition($targetId);
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} catch (ServiceNotFoundException $e) {
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if ('' !== $e->getId() && '@' === $e->getId()[0]) {
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throw new ServiceNotFoundException($e->getId(), $e->getSourceId(), null, [substr($e->getId(), 1)]);
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}
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throw $e;
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}
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if ($definition->isPublic()) {
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continue;
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}
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// Remove private definition and schedule for replacement
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$definition->setPublic(!$target->isPrivate());
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$definition->setPrivate($target->isPrivate());
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$container->setDefinition($definitionId, $definition);
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$container->removeDefinition($targetId);
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$replacements[$targetId] = $definitionId;
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}
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$this->replacements = $replacements;
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parent::process($container);
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$this->replacements = [];
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}
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/**
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* {@inheritdoc}
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*/
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protected function processValue($value, $isRoot = false)
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{
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if ($value instanceof Reference && isset($this->replacements[$referenceId = (string) $value])) {
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// Perform the replacement
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$newId = $this->replacements[$referenceId];
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$value = new Reference($newId, $value->getInvalidBehavior());
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$this->container->log($this, sprintf('Changed reference of service "%s" previously pointing to "%s" to "%s".', $this->currentId, $referenceId, $newId));
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}
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return parent::processValue($value, $isRoot);
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}
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}
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