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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; use Symfony\Component\Config\Definition\Exception\InvalidConfigurationException; /** * Node which only allows a finite set of values. * * @author Johannes M. Schmitt <schmittjoh@gmail.com> */ class EnumNode extends ScalarNode { private $values; public function __construct(?string $name, NodeInterface $parent = null, array $values = [], string $pathSeparator = BaseNode::DEFAULT_PATH_SEPARATOR) { $values = array_unique($values); if (empty($values)) { throw new \InvalidArgumentException('$values must contain at least one element.'); } parent::__construct($name, $parent, $pathSeparator); $this->values = $values; } public function getValues() { return $this->values; } protected function finalizeValue($value) { $value = parent::finalizeValue($value); if (!\in_array($value, $this->values, true)) { $ex = new InvalidConfigurationException(sprintf('The value %s is not allowed for path "%s". Permissible values: %s', json_encode($value), $this->getPath(), implode(', ', array_map('json_encode', $this->values)))); $ex->setPath($this->getPath()); throw $ex; } return $value; } /** * {@inheritdoc} */ protected function allowPlaceholders(): bool { return false; } }