protected function readSlash() {
        if ($this->currentPosition + 1 < $this->codeLength) {
            $nextChar = $this->code{$this->currentPosition + 1};
            if ($nextChar === '/') {
                $this->skipUntil("\n");
            } elseif ($nextChar === '*') {
                $this->skipUntil('*/');
            }
        }
    }