Zicht\Itertools\lib\Traits\SliceTrait::slice()

Complexity

Conditions	5
Paths	4

Size

Total Lines	16
Code Lines	8

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	8
CRAP Score	5

Importance

Changes	1
Bugs	0	Features	0

<?php
    public function slice($start, $end = null)
    {
        if (!is_int($start)) {
            throw new \InvalidArgumentException('Argument $start must be an integer');
        }

        if (!(is_null($end) || is_int($end))) {
            throw new \InvalidArgumentException('Argument $end must be an integer or null');
        }

        if ($this instanceof \Iterator) {
            return new SliceIterator($this, $start, $end);
        }

        return null;
    }
}