Symfony version(s) affected

6.3.5

Description

If I pass a string as the value for an \IntBackedEnum controller argument with MapQueryParameter attribute and BackedEnumValueResolver resolver, symfony generates a \TypeError exception.

How to reproduce

Controller:

#[Route('/category/{category}', name: 'list_category', methods: ['GET'])]
public function listAction(
    #[MapQueryParameter(resolver: BackedEnumValueResolver::class)] CategoryEnum $category = null,
): Response {
}

CategoryEnum:

enum ArtistRank: int
{
    case FOO = 1;
    case BAR = 2;
}

Possible Solution

Create separate resolvers for \IntBackedEnum and \StringBackedEnum

OR

Catch \TypeError along with the \ValueError in BackedEnumValueResolver and throw NotFoundHttpException

OR

Use tryFrom instead of try in BackedEnumValueResolver (probably a bad idea, because it will return null

Additional Context

I can avoid this by using requirements in the router description like this:

requirements: ['category' => new EnumRequirement(CategoryEnum::class)],

But this makes the route attribute unnecessary huge and less readable