Feature: void return

Question

Feature: void return

edef1c opened this issue 11 years ago · 6 comments

edef1c commented 11 years ago

A void return a la JS's return void EXPRESSION would rock. Maybe !return EXPRESSION or return! EXPRESSION.

Answer 1 · 2013-04-25T12:12:19.000Z

something like EXPRESSION; return ?

Answer 2 · 2013-04-25T14:52:16.000Z

EXPRESSION; return ?

This, or if you must: return void expression

Answer 3 · 2013-04-26T08:41:16.000Z

That works, though not quite idiomatic. I do if (cond) return void expr a lot in JS, for short-circuit logic.
return! expr if cond would be awesome.

Answer 4 · 2013-04-27T08:59:03.000Z

That's actually a more common patrern than I first thought, reading node code. if err then cb err; return is what I'd use (return void expr gets aci => return void, expr; and I'm not sure I'd like to see more hushing syntax).

Answer 5 · 2013-04-27T10:27:32.000Z

return cb err if err is very common, along with a variety of similar async dispatches.
return! expr could compile to expr; return (return void is the best we can do when writing JS straight, but we have the opportunity to improve here)

Answer 6 · 2013-04-27T21:46:04.000Z

Hmph. True that it is another case forced more verbose than JS.

Options:

Reuse the hushing analogy as proposed: !return (and not return)
Treat return void (currently useless being the same as just return) as one operator.