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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\BooleanNode;
- use Symfony\Component\Config\Definition\Exception\InvalidDefinitionException;
- /**
- * This class provides a fluent interface for defining a node.
- *
- * @author Johannes M. Schmitt <schmittjoh@gmail.com>
- */
- class BooleanNodeDefinition extends ScalarNodeDefinition
- {
- /**
- * {@inheritdoc}
- */
- public function __construct(?string $name, NodeParentInterface $parent = null)
- {
- parent::__construct($name, $parent);
- $this->nullEquivalent = true;
- }
- /**
- * Instantiate a Node.
- *
- * @return BooleanNode The node
- */
- protected function instantiateNode()
- {
- return new BooleanNode($this->name, $this->parent, $this->pathSeparator);
- }
- /**
- * {@inheritdoc}
- *
- * @throws InvalidDefinitionException
- */
- public function cannotBeEmpty()
- {
- throw new InvalidDefinitionException('->cannotBeEmpty() is not applicable to BooleanNodeDefinition.');
- }
- }
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