Is it possible to collect object usage information during compilation?

[Jacob Carlborg via Digitalmars-d]

On 2015-01-10 14:19, Martin Nowak wrote:

> I'd simple produce multiple rows, the principle remains the same.

Ok, I think I understand the code now. You managed to register the 
fields at compile time. Pretty neat. I thought the query would need to 
be delayed to the first call to opDispatch.

> The example already uses Variant.

Yes, but when you get the value out of the of the variant. I think one 
also needs to be able to check if a field was is "null" or not. Or am I 
missing something?

-- 
/Jacob Carlborg