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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\ContainerBuilder;
use Symfony\Component\DependencyInjection\Exception\RuntimeException;
/**
* This pass validates each definition individually only taking the information
* into account which is contained in the definition itself.
*
* Later passes can rely on the following, and specifically do not need to
* perform these checks themselves:
*
* - non synthetic, non abstract services always have a class set
* - synthetic services are always public
*
* @author Johannes M. Schmitt <schmittjoh@gmail.com>
*/
class CheckDefinitionValidityPass implements CompilerPassInterface
{
/**
* Processes the ContainerBuilder to validate the Definition.
*
* @param ContainerBuilder $container
*
* @throws RuntimeException When the Definition is invalid
*/
public function process(ContainerBuilder $container)
{
foreach ($container->getDefinitions() as $id => $definition) {
// synthetic service is public
if ($definition->isSynthetic() && !$definition->isPublic()) {
throw new RuntimeException(sprintf('A synthetic service ("%s") must be public.', $id));
}
// non-synthetic, non-abstract service has class
if (!$definition->isAbstract() && !$definition->isSynthetic() && !$definition->getClass()) {
if ($definition->getFactory()) {
throw new RuntimeException(sprintf('Please add the class to service "%s" even if it is constructed by a factory since we might need to add method calls based on compile-time checks.', $id));
}
throw new RuntimeException(sprintf(
'The definition for "%s" has no class. If you intend to inject '
.'this service dynamically at runtime, please mark it as synthetic=true. '
.'If this is an abstract definition solely used by child definitions, '
.'please add abstract=true, otherwise specify a class to get rid of this error.',
$id
));
}
// tag attribute values must be scalars
foreach ($definition->getTags() as $name => $tags) {
foreach ($tags as $attributes) {
foreach ($attributes as $attribute => $value) {
if (!is_scalar($value) && null !== $value) {
throw new RuntimeException(sprintf('A "tags" attribute must be of a scalar-type for service "%s", tag "%s", attribute "%s".', $id, $name, $attribute));
}
}
}
}
}
}
}
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