Symfony version(s) affected

6.2.x

Description

(considering this as a bug because my application breaks after upgrading from 6.1.x)

I have the following interface (slightly simplified):

interface FactoryInterface
{
    public static function getSupportedName(): string;

    public function create(string $someArgument): CreatedThingInterface
}

So this is basically a simple factory interface. In addition, the static method getSupportedName is used as index method in conjunction with a tagged iterator, so that all factories get injected as a pair of (logical factory name) + (Symfony service).

From services.php:

->set(SomeClass::class)
            ->arg('$factories', tagged_iterator('app.factory', defaultIndexMethod: 'getSupportedName'))

Services get automatically tagged by this declaration in services.php:

->instanceof(FactoryInterface::class)
        ->tag('app.factory')
        ->lazy()
        ->tag('proxy', ['interface' => FactoryInterface::class])

As you can see, these factories are also lazy to avoid some initialization work. As by default all my classes are final, I need to add a proxy tag.

The problem is that the generated proxy class doesn't contain that static method, only the non-static method and initializeLazyObject, so the container compilation fails.

There are workarounds for that problem, but it would be great to have that use case still supported.

Thanks for your efforts!

How to reproduce

• Create an interface that has a static method.
• Create a class that implements this interface and that is final.
• Declare the service for that class and make it lazy + define a proxy tag, stating the interface.
• Inject the service into another service by using a tagged iterator, and specify the static method from the interface as index method.

(details in the description above)

Possible Solution

No response

Additional Context

No response