itertools\CallbackFilterIterator

Complexity

Total Complexity

3

Size/Duplication

Total Lines	18
Duplicated Lines	0 %

Coupling/Cohesion

Components	1
Dependencies	1

Importance

Changes

0

2 Methods

Rating	Name	Duplication	Size	Complexity
A	__construct()	0	8	2
A	accept()	0	4	1

<?php

namespace itertools;

use InvalidArgumentException;
use FilterIterator;

/** For PHP 5.3 */
class CallbackFilterIterator extends FilterIterator
{
    protected $callback;

    public function __construct($iterator, $callback)
    {
        parent::__construct(IterUtil::asIterator($iterator));
        if (! is_callable($callback)) {
            throw new InvalidArgumentException('No valid callback provided');
        }
        $this->callback = $callback;
    }

    public function accept()
    {
        return call_user_func($this->callback, $this->current(), $this->key(), $this->getInnerIterator());
    }
}