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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\Config\Definition\Builder;
- use Symfony\Component\Config\Definition\EnumNode;
- /**
- * Enum Node Definition.
- *
- * @author Johannes M. Schmitt <schmittjoh@gmail.com>
- */
- class EnumNodeDefinition extends ScalarNodeDefinition
- {
- private $values;
- /**
- * @return $this
- */
- public function values(array $values)
- {
- $values = array_unique($values);
- if (empty($values)) {
- throw new \InvalidArgumentException('->values() must be called with at least one value.');
- }
- $this->values = $values;
- return $this;
- }
- /**
- * Instantiate a Node.
- *
- * @return EnumNode The node
- *
- * @throws \RuntimeException
- */
- protected function instantiateNode()
- {
- if (null === $this->values) {
- throw new \RuntimeException('You must call ->values() on enum nodes.');
- }
- return new EnumNode($this->name, $this->parent, $this->values, $this->pathSeparator);
- }
- }
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