Re: Q: Is there a reason why I can't do this?

[Moritz Lenz]

On 12/27/2010 09:55 PM, Daniel Carrera wrote:
> On Mon, Dec 27, 2010 at 9:49 PM, Chas. Owens <chas.ow...@gmail.com> wrote:
> 
>> The [conditional operator][1] is now spelled test ?? true !! false not
>> test ? true : false.
>>
> 
> Thanks!
> 
> Now the following code works:
> 
> %matches{  $r1 > $r2 ?? $p1 !! $p2 }++;
> 
> 
> I'm still having trouble with the other alternative:
> 
> $r1 > $r2 ?? { %matches{$p1}++ } !! { %matches{$p2}++ };
> 
> Now the problem is that %matches is empty. I'm not sure why. Maybe you can't
> have code blocks inside ?? ... !! ...

You can have (otherwise you'd get a syntax error), but it's not
magically executed.

You can write

$r1 > $r2 ?? %matches{$p1}++ !! %matches{$p2}++;

or

%matches{$r1 > $r2 ?? $p1 !! $p2 }++;

or

my $closure = $r1 > $r2 ?? { %matches{$p1}++ } !! { %matches{$p2}++ };
# invoke it
$closure();