mageekguy\atoum\php\tokenizer\iterator::seek PHP Метод

    public function seek($key)
    {
        if ($key > sizeof($this) / 2) {
            $this->end();
        } else {
            if ($this->valid() === false) {
                $this->rewind();
            }
        }
        if ($key > $this->key) {
            $this->next($key - $this->key);
        } else {
            $this->prev($this->key - $key);
        }
        return $this;
    }