On 2010-Feb-22, at 2:08 am, Moritz Lenz wrote:
At least I'd find it more intuitive if smart-matching against Bool
would coerce the the LHS to Bool and then do a comparison, much like
smart-matching against strings and numbers work.
The downside is that then: given $thing { when some_function($_)
{...} }
won't work as intuitively expected if $thing is false and
some_function
returns True.
The problem is the same construct is trying to do two different
things. I agree that Any ~~ Bool should compare both sides as bool,
because that's more consistent, and there should be another way to
ignore the LHS.
I propose "whenever": it suggests that any time whatsoever that the
RHS is true, the block will be executed. It's like "when", because it
is related, but it also has the hand-waving, dismissive feeling of
"whatever", as in, "Given $foo? Whatever!! I'm ignoring that and
looking only at this particular value now!"
say "Q: $question (Y/N)?";
my Bool $answer = %answers{$question};
my Bool $guess = get-response;
given $guess
{
whenever now() > $limit { say "Time's up!" }
when $answer { say "That is correct!" }
default { say "Sorry, wrong answer" }
}
-David
