Inject services recursively in Laravel - laravel

Question

I am using Laravel 5.2.45.
I am using dependency injection for my services.
Now, there is service A that needs service B, so I inject service B into A.
Also, there are methods in service B, that need service A, so I also injected service A into B.
However, this configuration seems to create a problem. This is my implementation:
class AService
{
/**
* #var BService
*/
protected $bService;
public function __construct(BService $bService) {
$this->bService = $bService;
}
}
class BService
{
/**
* #var AService
*/
protected $aService;
public function __construct(AService $aService) {
$this->aService = $aService;
}
}
First I noticed that my routes are not working, so I tried checking them with:
php artisan route:list
And I got:
PHP Fatal error: Allowed memory size of 134217728 bytes exhausted
(tried to allocate 4096 bytes) in
/var/www/tacnet-plus/bootstrap/cache/compiled.php on line 1426
Segmentation fault (core dumped)
It seems that this configuration creates a memory overflow. I suspect that the first service creates the second and the second creates the first indefinitely.
I have had the same issue in the past with Java Spring, and I know you can inject your services there with a setter instead of the constructor, to avoid creating the dependency in the constructor and inject the service on demand through the setter. Is there something similar in Laravel?

Answer 1

It seems that there is nothing out of the box that will inject a service without using the constructor. However, I can change one of both services to inject the other service manually in a getter, instead of the constructor:
class AService
{
/**
* #var BService
*/
protected $bService;
public function __construct(BService $bService) {
$this->bService = $bService;
}
}
use App;
class BService
{
public function __construct() {
}
/**
* #return AService
*/
private function getAService() {
return App::make('Some\Namespace\AService');
}
}