Loosing narrowed type on `Symfony\Contracts\Cache\CacheInterface`

[mvhirsch]

Bug report

I'm passing a non-negative-int in my method, which is correctly detected by PHPStan. However, it looses it's narrowed type on the way passing through CacheInterface. I'm not sure why.

I created a reproducer repo, as I'm unable to reproduce this issue on Playground.

https://github.com/mvhirsch/phpstan-symfony-cache-reproducer

Code snippet that reproduces the problem

No response

Expected output

No issues. Return type of $this->cache->get() should be int<0, max>, not int.

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It helps me keeping calm and settled in a hasty project.

[mvhirsch]

ping @silasjoisten

[mergeable]

This bug report is missing a link to reproduction at phpstan.org/try.

It will most likely be closed after manual review.

[ondrejmirtes]

This is a problem with phpstan-symfony. Without it it works properly: https://phpstan.org/r/56797d1e-5328-4d0f-b723-224a8058c3fb

[ondrejmirtes]

This stub probably needs to be updated https://github.com/phpstan/phpstan-symfony/blob/2.0.x/stubs/Symfony/Contracts/Cache/CacheInterface.stub

[mvhirsch]

Like this?

https://github.com/symfony/symfony/blob/b49a855dcfc018f496edec2cf1606629639461a8/src/Symfony/Contracts/Cache/CacheInterface.php#L35

[ondrejmirtes]

Not sure, try sending a PR with a test :)