[Pitch] Last expression as return value

[sspringer (Stefan Springer)]

@Danny

This pitch doesn't offer a way to enable expressions to exit an outer context. (Good!)

Thanks for the hint, but with the closures you can add a “return” exiting the closure, not only for that, closures to be used for control flow are inapproriate.

@Danny

It's all a wash until do-catch comes into play, which I think is really the only interesting part of the discussion. Figure that out and the rest will follow.

That part I did not understand at all, a “do” section is not a closure.

@DandyLyons

the potential for source breaking[1] changes

The one case mentioned in the pitch stems from a “guessing” of the type of a closure that to my opinion also today should not exist without a warning, I opened an according issue. I did not notice any mentioning of another source break in this thread.