On 8/23/11 2:31 PM, Timon Gehr wrote:
On 08/23/2011 10:46 PM, Walter Bright wrote:
On 8/19/2011 8:12 AM, Andrei Alexandrescu wrote:
One thing I'd subjectively like is to require braces on both branches
of if/else
if at least one has braces.
It's rather simple to just disallow the form:
if (a) if (b) statement
^ error: use if(a&&b) or if(a){if(b)statement}
and not even pay attention if there's a dangling else or not. I've
always viewed things like:
if (a)
if (b)
...
...
with suspicion, anyway, dangling else or not.
I agree, but imho
if (a)
if (b) ...
else ...
else ...
would not /have/ to be disallowed, because it is unambiguous for a
context-free grammar parser, and therefore for humans. (but I'd not cry
if it was)
Yah, disallowing complete and nested if/else pairs would be an annoyance
(I'm not sure how big). Otherwise, Walter's idea sounds good to me.
Walter, would you be okay with accepting if-if-else-else (at any depth)
as a correct case and otherwise disable nested incomplete ifs?
Andrei
