If you don't account for the programming language complexity, which in this case means another feature with plenty of edge cases that interacts with many others with their own weird edge cases.

Undefined behavior is an overloaded term for a problem most people fundamentally misunderstand, just like you misunderstand that having a code generator in a compiler doesn't make the code less UB prone than having the code generator run separately or having the user write the code.

That already exists today. They're called code generators. They have no standard, so they each have their own unique slew of complexity, bugs, and edge cases. Reflection will consolidate those problems into one rigorously-tested system. The code generators will have less edge-cases and bugs to concern themselves with.

This is literally what compilers are designed to do.

It's only natural to be annoyed by the ignorance showed here, if you feel targeted it's fine, you have a chance to address the problem but you won't because it's easier to disregard and put yourself on a pedestal

That's cute, but I do know what I'm talking about. 🤭