On Saturday, 24 June 2017 at 02:31:09 UTC, Solomon E wrote:
I think my proposal to add another use of semicolon in
parentheses, like `foreach` or `for` but not the same as
either, was needlessly complicated.
It's very popular, actually. :)
in (a)
out (result) (a)
This resembles template function declarations. Both proposals
resemble something else that they are not. Your proposal for
`out` is attractive, actually, because the semantics of foreach
are closer to what we're looking for than are the semantics of
template declarations.
as syntax sugar where each (a) lowers to
{assert(a);}
and in future can lower to something else, to renovate contract
implementation
The foreach syntax can be just as easily lowered:
out(result; a)
...to:
out(result) {assert(a);}
That also includes the optional message.
out(result; result < 1, "alert!")
...lowers to:
out(result) { assert(result < 1, "alert!"); }
That's so much easier, in every way.
There's no intention of making it complicated!
