Search Extension - search for factory interfaces

[peldax]

Hi,
I really love search extension in 3.0. I removed all the long config files with model classes I used as services and replaced it with few lines of search pattern.

I would love to be able to search for Component factories as well, eg. classes like:

<?php

declare(strict_types = 1);

namespace App\XYZ\Component;

interface IXYZFactory
{
    public function create() : XYZ;
}

They are currently listed in config file as following:

services:
    - App\XYZ\Component\IXYZFactory

Maybe its already possible, but I couldn't get it to work. From my inspection of code, there is a condition for searched class to be instantiable, which interface isn't, so I believe the extension need to be modified.

From quick inspection of how services extension work I couldn't quite find any solution, so I am leaving this request here. If you could give me some pointers what needs to be done I may send a PR.

Thanks.
VP