Afaik the concept is quite common when "everything is an expression", which can
be a nice feature of a language:
It saves keystrokes, and allows constructs like
let value = switch key {…}
But as the let syntax was changed to work with delayed assignment, one major
use case is solved in a different way, and I doubt that it fits into the Swift
roadmap.
Imho clarity is reduced, and it can look a little bit odd to end a function
with a line like
value
On the other hand, nobody would be forced to skip the "return", and I guess it
wouldn't be a complicated change in the compiler… so if you want to continue
working on the proposal, I would evaluate how this change could be reflected in
the docs.
Tino
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