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- <?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\Argument\ArgumentInterface;
- use Symfony\Component\DependencyInjection\Argument\ServiceClosureArgument;
- use Symfony\Component\DependencyInjection\ContainerBuilder;
- use Symfony\Component\DependencyInjection\ContainerInterface;
- use Symfony\Component\DependencyInjection\Definition;
- use Symfony\Component\DependencyInjection\Exception\RuntimeException;
- use Symfony\Component\DependencyInjection\Exception\ServiceNotFoundException;
- use Symfony\Component\DependencyInjection\Reference;
- use Symfony\Component\DependencyInjection\TypedReference;
- /**
- * Emulates the invalid behavior if the reference is not found within the
- * container.
- *
- * @author Johannes M. Schmitt <schmittjoh@gmail.com>
- */
- class ResolveInvalidReferencesPass implements CompilerPassInterface
- {
- private $container;
- private $signalingException;
- private $currentId;
- /**
- * Process the ContainerBuilder to resolve invalid references.
- */
- public function process(ContainerBuilder $container)
- {
- $this->container = $container;
- $this->signalingException = new RuntimeException('Invalid reference.');
- try {
- foreach ($container->getDefinitions() as $this->currentId => $definition) {
- $this->processValue($definition);
- }
- } finally {
- $this->container = $this->signalingException = null;
- }
- }
- /**
- * Processes arguments to determine invalid references.
- *
- * @return mixed
- *
- * @throws RuntimeException When an invalid reference is found
- */
- private function processValue($value, int $rootLevel = 0, int $level = 0)
- {
- if ($value instanceof ServiceClosureArgument) {
- $value->setValues($this->processValue($value->getValues(), 1, 1));
- } elseif ($value instanceof ArgumentInterface) {
- $value->setValues($this->processValue($value->getValues(), $rootLevel, 1 + $level));
- } elseif ($value instanceof Definition) {
- if ($value->isSynthetic() || $value->isAbstract()) {
- return $value;
- }
- $value->setArguments($this->processValue($value->getArguments(), 0));
- $value->setProperties($this->processValue($value->getProperties(), 1));
- $value->setMethodCalls($this->processValue($value->getMethodCalls(), 2));
- } elseif (\is_array($value)) {
- $i = 0;
- foreach ($value as $k => $v) {
- try {
- if (false !== $i && $k !== $i++) {
- $i = false;
- }
- if ($v !== $processedValue = $this->processValue($v, $rootLevel, 1 + $level)) {
- $value[$k] = $processedValue;
- }
- } catch (RuntimeException $e) {
- if ($rootLevel < $level || ($rootLevel && !$level)) {
- unset($value[$k]);
- } elseif ($rootLevel) {
- throw $e;
- } else {
- $value[$k] = null;
- }
- }
- }
- // Ensure numerically indexed arguments have sequential numeric keys.
- if (false !== $i) {
- $value = array_values($value);
- }
- } elseif ($value instanceof Reference) {
- if ($this->container->has($id = (string) $value)) {
- return $value;
- }
- $currentDefinition = $this->container->getDefinition($this->currentId);
- // resolve decorated service behavior depending on decorator service
- if ($currentDefinition->innerServiceId === $id && ContainerInterface::NULL_ON_INVALID_REFERENCE === $currentDefinition->decorationOnInvalid) {
- return null;
- }
- $invalidBehavior = $value->getInvalidBehavior();
- if (ContainerInterface::RUNTIME_EXCEPTION_ON_INVALID_REFERENCE === $invalidBehavior && $value instanceof TypedReference && !$this->container->has($id)) {
- $e = new ServiceNotFoundException($id, $this->currentId);
- // since the error message varies by $id and $this->currentId, so should the id of the dummy errored definition
- $this->container->register($id = sprintf('.errored.%s.%s', $this->currentId, $id), $value->getType())
- ->addError($e->getMessage());
- return new TypedReference($id, $value->getType(), $value->getInvalidBehavior());
- }
- // resolve invalid behavior
- if (ContainerInterface::NULL_ON_INVALID_REFERENCE === $invalidBehavior) {
- $value = null;
- } elseif (ContainerInterface::IGNORE_ON_INVALID_REFERENCE === $invalidBehavior) {
- if (0 < $level || $rootLevel) {
- throw $this->signalingException;
- }
- $value = null;
- }
- }
- return $value;
- }
- }
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