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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 $this->values;
}
/**
* {@inheritdoc}
*/
protected function finalizeValue($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;
}
}
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