Chris@14: <?php
Chris@14: 
Chris@14: /*
Chris@14:  * This file is part of the Symfony package.
Chris@14:  *
Chris@14:  * (c) Fabien Potencier <fabien@symfony.com>
Chris@14:  *
Chris@14:  * For the full copyright and license information, please view the LICENSE
Chris@14:  * file that was distributed with this source code.
Chris@14:  */
Chris@14: 
Chris@14: namespace Symfony\Component\DependencyInjection\Compiler;
Chris@14: 
Chris@14: use Symfony\Component\DependencyInjection\Argument\BoundArgument;
Chris@14: use Symfony\Component\DependencyInjection\ContainerBuilder;
Chris@14: use Symfony\Component\DependencyInjection\Definition;
Chris@14: use Symfony\Component\DependencyInjection\Exception\InvalidArgumentException;
Chris@16: use Symfony\Component\DependencyInjection\Exception\RuntimeException;
Chris@14: use Symfony\Component\DependencyInjection\LazyProxy\ProxyHelper;
Chris@17: use Symfony\Component\DependencyInjection\Reference;
Chris@14: use Symfony\Component\DependencyInjection\TypedReference;
Chris@14: 
Chris@14: /**
Chris@14:  * @author Guilhem Niot <guilhem.niot@gmail.com>
Chris@14:  */
Chris@14: class ResolveBindingsPass extends AbstractRecursivePass
Chris@14: {
Chris@17:     private $usedBindings = [];
Chris@17:     private $unusedBindings = [];
Chris@17:     private $errorMessages = [];
Chris@14: 
Chris@14:     /**
Chris@14:      * {@inheritdoc}
Chris@14:      */
Chris@14:     public function process(ContainerBuilder $container)
Chris@14:     {
Chris@18:         $this->usedBindings = $container->getRemovedBindingIds();
Chris@18: 
Chris@14:         try {
Chris@14:             parent::process($container);
Chris@14: 
Chris@14:             foreach ($this->unusedBindings as list($key, $serviceId)) {
Chris@16:                 $message = sprintf('Unused binding "%s" in service "%s".', $key, $serviceId);
Chris@16:                 if ($this->errorMessages) {
Chris@16:                     $message .= sprintf("\nCould be related to%s:", 1 < \count($this->errorMessages) ? ' one of' : '');
Chris@16:                 }
Chris@16:                 foreach ($this->errorMessages as $m) {
Chris@16:                     $message .= "\n - ".$m;
Chris@16:                 }
Chris@16:                 throw new InvalidArgumentException($message);
Chris@14:             }
Chris@14:         } finally {
Chris@17:             $this->usedBindings = [];
Chris@17:             $this->unusedBindings = [];
Chris@17:             $this->errorMessages = [];
Chris@14:         }
Chris@14:     }
Chris@14: 
Chris@14:     /**
Chris@14:      * {@inheritdoc}
Chris@14:      */
Chris@14:     protected function processValue($value, $isRoot = false)
Chris@14:     {
Chris@14:         if ($value instanceof TypedReference && $value->getType() === $this->container->normalizeId($value)) {
Chris@14:             // Already checked
Chris@14:             $bindings = $this->container->getDefinition($this->currentId)->getBindings();
Chris@14: 
Chris@14:             if (isset($bindings[$value->getType()])) {
Chris@14:                 return $this->getBindingValue($bindings[$value->getType()]);
Chris@14:             }
Chris@14: 
Chris@14:             return parent::processValue($value, $isRoot);
Chris@14:         }
Chris@14: 
Chris@14:         if (!$value instanceof Definition || !$bindings = $value->getBindings()) {
Chris@14:             return parent::processValue($value, $isRoot);
Chris@14:         }
Chris@14: 
Chris@14:         foreach ($bindings as $key => $binding) {
Chris@14:             list($bindingValue, $bindingId, $used) = $binding->getValues();
Chris@14:             if ($used) {
Chris@14:                 $this->usedBindings[$bindingId] = true;
Chris@14:                 unset($this->unusedBindings[$bindingId]);
Chris@14:             } elseif (!isset($this->usedBindings[$bindingId])) {
Chris@17:                 $this->unusedBindings[$bindingId] = [$key, $this->currentId];
Chris@14:             }
Chris@14: 
Chris@14:             if (isset($key[0]) && '$' === $key[0]) {
Chris@14:                 continue;
Chris@14:             }
Chris@14: 
Chris@14:             if (null !== $bindingValue && !$bindingValue instanceof Reference && !$bindingValue instanceof Definition) {
Chris@17:                 throw new InvalidArgumentException(sprintf('Invalid value for binding key "%s" for service "%s": expected null, an instance of %s or an instance of %s, %s given.', $key, $this->currentId, Reference::class, Definition::class, \gettype($bindingValue)));
Chris@14:             }
Chris@14:         }
Chris@14: 
Chris@14:         if ($value->isAbstract()) {
Chris@14:             return parent::processValue($value, $isRoot);
Chris@14:         }
Chris@14: 
Chris@14:         $calls = $value->getMethodCalls();
Chris@14: 
Chris@16:         try {
Chris@16:             if ($constructor = $this->getConstructor($value, false)) {
Chris@17:                 $calls[] = [$constructor, $value->getArguments()];
Chris@16:             }
Chris@16:         } catch (RuntimeException $e) {
Chris@16:             $this->errorMessages[] = $e->getMessage();
Chris@16:             $this->container->getDefinition($this->currentId)->addError($e->getMessage());
Chris@16: 
Chris@16:             return parent::processValue($value, $isRoot);
Chris@14:         }
Chris@14: 
Chris@14:         foreach ($calls as $i => $call) {
Chris@14:             list($method, $arguments) = $call;
Chris@14: 
Chris@14:             if ($method instanceof \ReflectionFunctionAbstract) {
Chris@14:                 $reflectionMethod = $method;
Chris@14:             } else {
Chris@18:                 try {
Chris@18:                     $reflectionMethod = $this->getReflectionMethod($value, $method);
Chris@18:                 } catch (RuntimeException $e) {
Chris@18:                     if ($value->getFactory()) {
Chris@18:                         continue;
Chris@18:                     }
Chris@18:                     throw $e;
Chris@18:                 }
Chris@14:             }
Chris@14: 
Chris@14:             foreach ($reflectionMethod->getParameters() as $key => $parameter) {
Chris@18:                 if (\array_key_exists($key, $arguments) && '' !== $arguments[$key]) {
Chris@14:                     continue;
Chris@14:                 }
Chris@14: 
Chris@18:                 if (\array_key_exists('$'.$parameter->name, $bindings)) {
Chris@14:                     $arguments[$key] = $this->getBindingValue($bindings['$'.$parameter->name]);
Chris@14: 
Chris@14:                     continue;
Chris@14:                 }
Chris@14: 
Chris@14:                 $typeHint = ProxyHelper::getTypeHint($reflectionMethod, $parameter, true);
Chris@14: 
Chris@14:                 if (!isset($bindings[$typeHint])) {
Chris@14:                     continue;
Chris@14:                 }
Chris@14: 
Chris@14:                 $arguments[$key] = $this->getBindingValue($bindings[$typeHint]);
Chris@14:             }
Chris@14: 
Chris@14:             if ($arguments !== $call[1]) {
Chris@14:                 ksort($arguments);
Chris@14:                 $calls[$i][1] = $arguments;
Chris@14:             }
Chris@14:         }
Chris@14: 
Chris@14:         if ($constructor) {
Chris@14:             list(, $arguments) = array_pop($calls);
Chris@14: 
Chris@14:             if ($arguments !== $value->getArguments()) {
Chris@14:                 $value->setArguments($arguments);
Chris@14:             }
Chris@14:         }
Chris@14: 
Chris@14:         if ($calls !== $value->getMethodCalls()) {
Chris@14:             $value->setMethodCalls($calls);
Chris@14:         }
Chris@14: 
Chris@14:         return parent::processValue($value, $isRoot);
Chris@14:     }
Chris@14: 
Chris@14:     private function getBindingValue(BoundArgument $binding)
Chris@14:     {
Chris@14:         list($bindingValue, $bindingId) = $binding->getValues();
Chris@14: 
Chris@14:         $this->usedBindings[$bindingId] = true;
Chris@14:         unset($this->unusedBindings[$bindingId]);
Chris@14: 
Chris@14:         return $bindingValue;
Chris@14:     }
Chris@14: }