104 lines
3.5 KiB
PHP
104 lines
3.5 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\ContainerInterface;
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use Symfony\Component\DependencyInjection\Reference;
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use Symfony\Component\DependencyInjection\ContainerBuilder;
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use Symfony\Component\DependencyInjection\Exception\RuntimeException;
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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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/**
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* Process the ContainerBuilder to resolve invalid references.
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*
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* @param ContainerBuilder $container
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*/
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public function process(ContainerBuilder $container)
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{
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$this->container = $container;
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foreach ($container->getDefinitions() as $definition) {
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if ($definition->isSynthetic() || $definition->isAbstract()) {
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continue;
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}
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$definition->setArguments(
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$this->processArguments($definition->getArguments())
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);
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$calls = array();
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foreach ($definition->getMethodCalls() as $call) {
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try {
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$calls[] = array($call[0], $this->processArguments($call[1], true));
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} catch (RuntimeException $ignore) {
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// this call is simply removed
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}
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}
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$definition->setMethodCalls($calls);
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$properties = array();
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foreach ($definition->getProperties() as $name => $value) {
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try {
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$value = $this->processArguments(array($value), true);
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$properties[$name] = reset($value);
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} catch (RuntimeException $ignore) {
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// ignore property
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}
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}
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$definition->setProperties($properties);
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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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* @param array $arguments An array of Reference objects
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* @param Boolean $inMethodCall
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*/
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private function processArguments(array $arguments, $inMethodCall = false)
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{
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foreach ($arguments as $k => $argument) {
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if (is_array($argument)) {
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$arguments[$k] = $this->processArguments($argument, $inMethodCall);
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} elseif ($argument instanceof Reference) {
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$id = (string) $argument;
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$invalidBehavior = $argument->getInvalidBehavior();
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$exists = $this->container->has($id);
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// resolve invalid behavior
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if ($exists && ContainerInterface::EXCEPTION_ON_INVALID_REFERENCE !== $invalidBehavior) {
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$arguments[$k] = new Reference($id);
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} elseif (!$exists && ContainerInterface::NULL_ON_INVALID_REFERENCE === $invalidBehavior) {
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$arguments[$k] = null;
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} elseif (!$exists && ContainerInterface::IGNORE_ON_INVALID_REFERENCE === $invalidBehavior) {
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if ($inMethodCall) {
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throw new RuntimeException('Method shouldn\'t be called.');
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}
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$arguments[$k] = null;
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}
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}
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}
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return $arguments;
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}
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}
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