Habemus\CircularDependencyDetection

Complexity

Total Complexity

5

Size/Duplication

Total Lines	41
Duplicated Lines	0 %

Importance

Changes	1
Bugs	0	Features	0

4 Methods

Rating	Name	Duplication	Size	Complexity
A	acquire()	0	3	1
A	release()	0	3	1
A	isExecuting()	0	3	1
A	execute()	0	12	2

<?php
declare(strict_types=1);

namespace Habemus;

use Closure;
use Habemus\Exception\CircularDependencyException;

class CircularDependencyDetection
{
    /**
     * @var array
     */
    protected $executing = [];

    /**
     * @param mixed $id
     * @param Closure $process
     * @return mixed
     * @throws CircularDependencyException
     */
    public function execute($id, Closure $process)
    {
        if ($this->isExecuting($id)) {
            throw CircularDependencyException::forId($id, array_keys($this->executing));
        }

        $this->acquire($id);

        try {
            return $process();
        } finally {
            $this->release($id);
        }
    }

    protected function acquire($id): void
    {
        $this->executing[$id] = true;
    }

    protected function release($id): void
    {
        unset($this->executing[$id]);
    }

    public function isExecuting($id): bool
    {
        return array_key_exists($id, $this->executing);
    }
}