[Catalyst] TT2 + CP::Authentication + DBIC gotcha

[Andrew Rodland]

On Friday 13 July 2007 10:33:59 am Matt Lawrence wrote:
> Perrin Harkins wrote:
> > my $vote = $foo if ($bar);  # <--- bad!
>
> What's wrong with that? I find it a lot more readable than
>
> my $vote;
> if ($bar) {
>     $vote = $foo;
> }
>

Only the fact that it makes perl do Bad Things :) 

"my $foo if CONDITION" triggers a bug that lets perl violate the expectation 
for the duration of a lexical variable. If the CONDITION is false, $foo 
doesn't get undef. It gets a value that's completely unexpected -- unless 
you're using it for hack value, but don't do that either :)

Andrew