On Tuesday, 16 June 2020 at 13:31:49 UTC, Atila Neves wrote:
[snip]

Pretty cool, thanks for the fixups.

It may make for a good documentation example, in that it may help make clear that you need to pass the module in somehow when dealing with non-member functions (AFAICT). You could include a comment about how it would be different if it were split into separate files.

I have a few more questions...

In your original example, is there any issue if we then make transform a templated non-member function that is generic over types like Adder (maybe there is an enum hasAddableMember that is true for Adder and false for Plus1)?

Am I right that the shared static constructor in vtable means that there is one vtable for all the instances?

Are there any technical issues preventing Polymorphism from accepting a class in addition to an interface?

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