Remorhaz\UniLex\Example\Brainfuck\Command\LoopCommand

Complexity

Total Complexity

6

Size/Duplication

Total Lines	36
Duplicated Lines	0 %

Importance

Changes

0

4 Methods

Rating	Name	Duplication	Size	Complexity
A	exec()	0	7	2
A	setEndLoopIndex()	0	3	1
A	__construct()	0	3	1
A	getEndLoopIndex()	0	6	2

<?php

declare(strict_types=1);

namespace Remorhaz\UniLex\Example\Brainfuck\Command;

use Remorhaz\UniLex\Example\Brainfuck\Exception;
use Remorhaz\UniLex\Example\Brainfuck\Runtime;

class LoopCommand extends AbstractCommand
{
    private $endLoopIndex;

    public function __construct(Runtime $runtime)
    {
        parent::__construct($runtime);
    }

    /**
     * @throws Exception
     */
    public function exec(): void
    {
        if ($this->runtime->isValueZero()) {
            $this->runtime->setCommandIndex($this->getEndLoopIndex() + 1);
            return;
        }
        $this->runtime->shiftCommandIndex(1);
    }

    public function setEndLoopIndex(int $index): void
    {
        $this->endLoopIndex = $index;
    }

    /**
     * @return int
     * @throws Exception
     */
    private function getEndLoopIndex(): int
    {
        if (!isset($this->endLoopIndex)) {
            throw new Exception("End loop index is not defined");
        }
        return $this->endLoopIndex;
    }
}