<?php
declare(strict_types=1);
namespace ParagonIE\Ionizer\Filter;
use ParagonIE\Ionizer\Contract\FilterInterface;
use ParagonIE\Ionizer\InputFilter;
use ParagonIE\Ionizer\InvalidDataException;
/**
* Class BoolFilter
* @package ParagonIE\Ionizer\Filter
*/
class BoolFilter extends InputFilter
{
/**
* @var mixed
*/
protected $default = false;
/**
* @var string
*/
protected $type = 'bool';
/**
* Process data using the filter rules.
*
* @param mixed $data
* @return bool
* @throws \TypeError
* @throws InvalidDataException
*/
public function process($data = null)
{
if (\is_array($data)) {
throw new \TypeError(
\sprintf('Unexpected array for boolean filter (%s).', $this->index)
);
}
return (bool) parent::process(!empty($data));
}
/**
* Sets the expected input type (e.g. string, boolean)
*
* @param string $typeIndicator
* @return FilterInterface
* @throws \TypeError
*/
public function setType(string $typeIndicator): FilterInterface
{
if ($typeIndicator !== 'bool') {
throw new \TypeError(
'Type must always be set to "bool".'
);
}
return parent::setType('bool');
}
/**
* Set the default value (not applicable to booleans)
*
* @param string|int|float|bool|array|null $value
* @return FilterInterface
*/
public function setDefault($value): FilterInterface
{
return parent::setDefault($value);
}
}
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