class RemoveUnusedDefinitionsPass
Removes unused service definitions from the container.
@author Johannes M. Schmitt <schmittjoh@gmail.com> @author Nicolas Grekas <p@tchwork.com>
Hierarchy
- class \Symfony\Component\DependencyInjection\Compiler\AbstractRecursivePass implements \Symfony\Component\DependencyInjection\Compiler\CompilerPassInterface
- class \Symfony\Component\DependencyInjection\Compiler\RemoveUnusedDefinitionsPass extends \Symfony\Component\DependencyInjection\Compiler\AbstractRecursivePass
Expanded class hierarchy of RemoveUnusedDefinitionsPass
1 file declares its use of RemoveUnusedDefinitionsPass
- NormalInstallerServiceProvider.php in core/
lib/ Drupal/ Core/ Installer/ NormalInstallerServiceProvider.php
File
-
vendor/
symfony/ dependency-injection/ Compiler/ RemoveUnusedDefinitionsPass.php, line 23
Namespace
Symfony\Component\DependencyInjection\CompilerView source
class RemoveUnusedDefinitionsPass extends AbstractRecursivePass {
protected bool $skipScalars = true;
private array $connectedIds = [];
/**
* Processes the ContainerBuilder to remove unused definitions.
*/
public function process(ContainerBuilder $container) : void {
try {
$this->enableExpressionProcessing();
$this->container = $container;
$connectedIds = [];
$aliases = $container->getAliases();
foreach ($aliases as $id => $alias) {
if ($alias->isPublic()) {
$this->connectedIds[] = (string) $aliases[$id];
}
}
foreach ($container->getDefinitions() as $id => $definition) {
if ($definition->isPublic()) {
$connectedIds[$id] = true;
$this->processValue($definition);
}
}
while ($this->connectedIds) {
$ids = $this->connectedIds;
$this->connectedIds = [];
foreach ($ids as $id) {
if (!isset($connectedIds[$id]) && $container->hasDefinition($id)) {
$connectedIds[$id] = true;
$this->processValue($container->getDefinition($id));
}
}
}
foreach ($container->getDefinitions() as $id => $definition) {
if (!isset($connectedIds[$id])) {
$container->removeDefinition($id);
$container->resolveEnvPlaceholders(!$definition->hasErrors() ? serialize($definition) : $definition);
$container->log($this, \sprintf('Removed service "%s"; reason: unused.', $id));
}
}
} finally {
$this->container = null;
$this->connectedIds = [];
}
}
protected function processValue(mixed $value, bool $isRoot = false) : mixed {
if (!$value instanceof Reference) {
return parent::processValue($value, $isRoot);
}
if (ContainerBuilder::IGNORE_ON_UNINITIALIZED_REFERENCE !== $value->getInvalidBehavior()) {
$this->connectedIds[] = (string) $value;
}
return $value;
}
}