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