On Saturday, 23 June 2018 at 06:18:53 UTC, user1234 wrote:
On Saturday, 23 June 2018 at 05:09:13 UTC, aedt wrote:
On Saturday, 23 June 2018 at 04:45:07 UTC, user1234 wrote:
On Saturday, 23 June 2018 at 01:27:30 UTC, aedt wrote:
for line in stdin.lines() {}
if condition {}
while condition {}
for init; condition; op {}
What's the rationale of keeping the requirement that the
condition of if/for/while must be wrapped with a parenthesis
(other than keeping parser simple)? Modern languages have
already dropped this requirement (i.e. Rust, Nim) and I
don't see any reason not to do so.
There is this case that requires parens:
if a && b c;
Is there a missing && or not ? It seems obvious for a human
but compiler parsers are "apparatchiks", i.e rules are rules.
That being said this would work by allowing parens for
disambiguation.
Same thing as the following"
return a && b;
I'm not saying to drop parens completely, I'm saying why is it
not optional. D seems to have no problem with x.to!string or
std.lines
I agree that this would be in adequation with certain stuff of
the D syntax, such as parens-less single template parameter.
Someone has to make a DIP for this
Maybe but this is a simple parser thing. For example after
reading the discussion here i have tested the idea in my toy
programming language
(https://github.com/BBasile/styx/commit/83c96d8a789aa82f9bed254ab342ffc4aed4fd88) and i believe that for D this would be as simple ( < 20 SLOC, w/o the tests).
otherwise we're good for one of this sterile NG discussion
leading to nothing, i.e intellectual mast... well guess the
word.
I'm tempted to try this in DMDFE. Change is simple enough so that
if it get rejected no much time is lost.
