The pointer approach allows for brevity and idiomatic swift at the place of use. The verbosity behind the scenes need not bother the user. Because I couldn't f

The pointer approach allows for brevity and idiomatic swift at the place of use. The verbosity behind the scenes need not bother the user. Because I couldn't find anything that provides that using the approach you are discussing, I didn't investigate its performance characteristics. For me, dev UX comes first, and I wouldn't personally be interested in reading or writing in a language that requires the "with" construct wrapping every calculation.