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@fasterthanlime this one is a bit tongue-in-cheek, but i think nearly every programmer/language designer has something to learn from the Swift API design guidelines. if Rust could just steal that in its entirety (and probably improve upon it!) that'd be perfect 
Swift is a general-purpose programming language built using a modern approach to safety, performance, and software design patterns.
Swift.org (swift.org)
@soc @fasterthanlime aside from clarity, being able to 'overload' on argument labels is really really nice, and Rust deals with a lot of same-method-but-with-try/mut-instead already
@soc @fasterthanlime by "named arguments" do you mean something akin to python-style kwargs? or maybe LSP inlay of argument names at callsites?
a lot of the value of argument labels comes from them being manditory and chosen by the callee. i really value Swift's API design tenet of "clarity at the point of use", and even the simple aesthetic change of going from `sayHi(person)` to `sayHi(to: person)` can make a big difference IMO
@fasterthanlime Swift-style argument labels! IMO the most underrated feature that literally every programming language would be better off with (clearer APIs with no downside!!)
