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<?php
/**
* League.Csv (https://csv.thephpleague.com)
*
* (c) Ignace Nyamagana Butera <nyamsprod@gmail.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
declare(strict_types=1);
namespace League\Csv;
use IteratorIterator;
use ReturnTypeWillChange;
use Traversable;
/**
* Map value from an iterator before yielding.
*
* @internal used internally to modify CSV content
*/
final class MapIterator extends IteratorIterator
{
/** @var callable The callback to apply on all InnerIterator current value. */
private $callable;
public function __construct(Traversable $iterator, callable $callable)
{
parent::__construct($iterator);
$this->callable = $callable;
}
/**
* @return mixed The value of the current element.
*/
#[ReturnTypeWillChange]
public function current()
{
return ($this->callable)(parent::current(), parent::key());
}
}
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