Have a template function register(T)() instantiated and executed at startup for all sub classes of a specific base class?

[monkyyy]

On Wednesday, 24 September 2025 at 23:29:31 UTC, TwoOfCups wrote:
> On Sunday, 21 September 2025 at 19:23:33 UTC, monkyyy wrote:
>> On Sunday, 21 September 2025 at 08:52:48 UTC, TwoOfCups wrote:
>>> Primarily it is this that I am curious if there is **ANY** 
>>> way to make happen.
>>
>> how far into compiler bugs you wanta go?
>
> If there was even a hacky compiler bug way of making it work I 
> would still be interested in how it could be done just for 
> learning purposes.

https://github.com/crazymonkyyy/blackmagic-in-d/blob/master/src/appendable.d

improving this is on my todo list but this is the sort of 
direction id look