Add :trytiny_var option for $_ default exception

[polettix]

This proposed change allows (lexically) setting $_ as the default exception object for kiss, hug, barf, and bleep. This makes life easier when using Ouch in team with Try::Tiny, because the latter uses $_ as the exception object that is passed around.

So, instead of doing either of the following:

use Try::Tiny;
use Ouch;
try { ouch 500, 'OUCH!' }
catch {
   if (kiss 500, $_) { ... }
   else { ... }
};

try { ouch 404, 'No luck' }
catch {
   local $@ = $_;
   if (kiss 404) { ... }
   else { ... }
}

it's possible to "just" do this:

use Try::Tiny;
use Ouch qw<:trytiny_var>;
try { ouch 500, 'OUCH!' }
catch {
   if (kiss 500) { ... }
   else { ... }
};

i.e. get full Ouch laziness and DWIM-mery back.

The change also includes tests for the new feature and documentation.

[polettix]

Hi! Any news about this?

[rizen]

Thanks for the reminder. Somehow I missed your pull request. I've released 0.0500 to CPAN that contains your pull request.