1 <?php

     2 

     3 /*

     4  * This file is part of the Symfony package.

     5  *

     6  * (c) Fabien Potencier <fabien@symfony.com>

     7  *

     8  * For the full copyright and license information, please view the LICENSE

     9  * file that was distributed with this source code.

    10  */

    11 

    12 namespace Symfony\Component\Config\Definition;

    13 

    14 use Symfony\Component\Config\Definition\VariableNode;

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

    16 

    17 /**

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

    19  *

    20  * The following values are considered scalars:

    21  *   * booleans

    22  *   * strings

    23  *   * null

    24  *   * integers

    25  *   * floats

    26  *

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

    28  */

    29 class ScalarNode extends VariableNode

    30 {

    31     /**

    32      * {@inheritDoc}

    33      */

    34     protected function validateType($value)

    35     {

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

    37             $ex = new InvalidTypeException(sprintf(

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

    39                 $this->getPath(),

    40                 gettype($value)

    41             ));

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

    43 

    44             throw $ex;

    45         }

    46     }

    47 }