that’s basically the conversation that is being had in the linked thread:

should this be done as a special case in the compiler

or

shouldn’t this be a more general meta programming based feature

with those in favor of meta-programming also bringing up the potential complexity/speed loss added to the compiler for this feature

the problem for swift is, there hasn’t been a coherent meta-programming story (something like a meta-programming mega proposal) so it seems hard to push for that instead right now....