Hello everyone Is there any information whether the implementation of this issue is planned?

Thanks for this PR!

As mentioned in #1965 (comment), I'm still not sure we should support enums that are not BackedEnum though.
Those are not supported by Symfony Serializer as far as I can see, so supporting them would make us have a different behavior.

Unless I'm wrong and pure enums are correctly serialized? What would be your case for pure enums support?

@GuilhemN

Unless I'm wrong and pure enums are correctly serialized? What would be your case for pure enums support?

At the moment I am using DTO (Assert) PHP Enum for validation according to the following recommendation:

https://github.com/symfony/symfony/pull/43047#issuecomment-1161704955

ChannelStatusEnum::class

`
enum ChannelStatusEnum: string
{
case PUBLISHED = 'published';
case UNPUBLISHED = 'unpublished';
case BLOCKED = 'blocked';

public static function values(): array
{
    return \array_column(self::cases(), 'value');
}

}
`

DTO

#[Assert\NotBlank] #[Assert\Choice(callback: [ChannelStatusEnum::class, 'values'] , multiple: false)] public readonly string $status,

The scheme is working, there are no problems. But I can't specify it in the NelmioApiDocBundle.
It doesn't work that way.

Request DTO

#[OA\Property(type: 'string', enum: ChannelStatusEnum::class, example: 'published', nullable: false)] public readonly string $status,

A simple solution would be to specify so:

#[OA\Property(type: 'string', enum: ChannelStatusEnum::values(), nullable: false)] public readonly string $status,

But you can't do that-(

We automatically extract info from Assert/Choice, see https://github.com/nelmio/NelmioApiDocBundle/blob/master/ModelDescriber/Annotations/SymfonyConstraintAnnotationReader.php#L107-L109, so just having #[Assert\NotBlank] #[Assert\Choice(callback: [ChannelStatusEnum::class, 'values'] , multiple: false)] public readonly string $status and then #[OA\Property(type: 'string', example: 'published', nullable: false)] public readonly string $status should work.

And a class name in the enum field will not be interpreted by NelmioApiDocBundle also, so I don't think adding support of pure enums would help in your case.

@GuilhemN, Thanks! This solution works.

I will go ahead and close this one because of #2121