<?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\VariableNode;

use Symfony\Component\Config\Definition\Exception\InvalidTypeException;

/**

 * This node represents a scalar value in the config tree.

 *

 * The following values are considered scalars:

 *   * booleans

 *   * strings

 *   * null

 *   * integers

 *   * floats

 *

 * @author Johannes M. Schmitt <schmittjoh@gmail.com>

 */

class ScalarNode extends VariableNode

{

    /**

     * {@inheritDoc}

     */

    protected function validateType($value)

    {

        if (!is_scalar($value) && null !== $value) {

            $ex = new InvalidTypeException(sprintf(

                'Invalid type for path "%s". Expected scalar, but got %s.',

                $this->getPath(),

                gettype($value)

            ));

            $ex->setPath($this->getPath());

            throw $ex;

        }

    }

}