Repository: symfony/symfony
File: src/Symfony/Component/DependencyInjection/Compiler/ResolveClassPass.php (PHP)

Code before:
 * 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\ChildDefinition;
use Symfony\Component\DependencyInjection\ContainerBuilder;
use Symfony\Component\DependencyInjection\Exception\InvalidArgumentException;

/**
 * @author Nicolas Grekas <p@tchwork.com>
 */
class ResolveClassPass implements CompilerPassInterface
{
    public function process(ContainerBuilder $container): void
    {
        foreach ($container->getDefinitions() as $id => $definition) {
            if ($definition->isSynthetic() || null !== $definition->getClass()) {
                continue;
            }
            if (preg_match('/^[a-zA-Z_\x7f-\xff][a-zA-Z0-9_\x7f-\xff]*+(?:\\\\[a-zA-Z_\x7f-\xff][a-zA-Z0-9_\x7f-\xff]*+)++$/', $id)) {
                if (!class_exists($id) && !interface_exists($id)) {
                    $error = $definition instanceof ChildDefinition ?
                        'has a parent but no class, and its name looks like an FQCN. Either the class is missing or you want to inherit it from the parent service' :
                        'name looks like an FQCN but the class does not exists';

                    throw new InvalidArgumentException("Service definition \"{$id}\" {$error}. To resolve this ambiguity, please rename this service to a non-FQCN (e.g. using dots), or create the missing class.");
                }

                $definition->setClass($id);
            }
        }
    }
}


Review comment (suggestion):
```suggestion
                        'name looks like a FQCN but the class does not exist';
```

Code after:
 * 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\ChildDefinition;
use Symfony\Component\DependencyInjection\ContainerBuilder;
use Symfony\Component\DependencyInjection\Exception\InvalidArgumentException;

/**
 * @author Nicolas Grekas <p@tchwork.com>
 */
class ResolveClassPass implements CompilerPassInterface
{
    public function process(ContainerBuilder $container): void
    {
        foreach ($container->getDefinitions() as $id => $definition) {
            if ($definition->isSynthetic() || null !== $definition->getClass()) {
                continue;
            }
            if (preg_match('/^[a-zA-Z_\x7f-\xff][a-zA-Z0-9_\x7f-\xff]*+(?:\\\\[a-zA-Z_\x7f-\xff][a-zA-Z0-9_\x7f-\xff]*+)++$/', $id)) {
                if (!class_exists($id) && !interface_exists($id)) {
                    $error = $definition instanceof ChildDefinition ?
                        'has a parent but no class, and its name looks like a FQCN. Either the class is missing or you want to inherit it from the parent service' :
                        'name looks like a FQCN but the class does not exist';

                    throw new InvalidArgumentException("Service definition \"{$id}\" {$error}. To resolve this ambiguity, please rename this service to a non-FQCN (e.g. using dots), or create the missing class.");
                }

                $definition->setClass($id);
            }
        }
    }
}