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EnumNodeDefinition.php
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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; public function values(array $values) { $values = array_unique($values); if (count($values) <= 1) { throw new \InvalidArgumentException('->values() must be called with at least two distinct values.'); } $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); } }