Yes, but reflection is planning a compile-time list of bases.

On Thu, Apr 11, 2024 at 2:32 PM Mihail Mihaylov via Std-Proposals <
std-proposals_at_[hidden]> wrote:

> On Thu, Apr 11, 2024 at 4:14 PM Gašper Ažman <gasper.azman_at_[hidden]>
> wrote:
>
>> dynamic_cast structures are only included for types with a vtable.
>>
>
> And a compile-time list of base types is included for... no types at all.
> Whatever the actual implementation, it will require something which isn't
> currently available.
>
> All I'm saying is that asking for `any` to support taking out an instance
> of a base class instead of the actual class stored in it is not
> unreasonable.
>
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