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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\Loader\Configurator\Traits;
use Symfony\Component\DependencyInjection\Exception\InvalidArgumentException;
trait TagTrait
{
/**
* Adds a tag for this definition.
*
* @return $this
*/
final public function tag(string $name, array $attributes = []): static
{
if ('' === $name) {
throw new InvalidArgumentException(sprintf('The tag name for service "%s" must be a non-empty string.', $this->id));
}
$this->validateAttributes($name, $attributes);
$this->definition->addTag($name, $attributes);
return $this;
}
private function validateAttributes(string $tag, array $attributes, array $path = []): void
{
foreach ($attributes as $name => $value) {
if (\is_array($value)) {
$this->validateAttributes($tag, $value, [...$path, $name]);
} elseif (!\is_scalar($value ?? '')) {
$name = implode('.', [...$path, $name]);
throw new InvalidArgumentException(sprintf('A tag attribute must be of a scalar-type or an array of scalar-types for service "%s", tag "%s", attribute "%s".', $this->id, $tag, $name));
}
}
}
}