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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)); } } } }