Make Data::Dumper boolean aware.

[EvanCarroll]

Perl now has a literal syntax for

• !!1 which makes to builtin::true
• !!0 which maps to builtin::false

But when you use Dumper you see,

perl -MData::Dumper -E'say Data::Dumper::Dumper( { true => !!1, false => !!0 } );'
$VAR1 = {
          'false' => '',
          'true' => 1
        };

And you don't even see that these values pass builtin::is_bool. I think a better display would be.

perl -MData::Dumper -E'say Data::Dumper::Dumper( { true => !!1, false => !!0 } );'
$VAR1 = {
          'false' => *builtin::false,
          'true' => *builtin::true,
        };

But even the !!1 and !!0 would be great.

[mauke]

$ perl -MData::Dumper -E'say Data::Dumper::Dumper( { true => !!1, false => !!0 } );'
$VAR1 = {
          'false' => !!0,
          'true' => !!1
        };

$ perl -v

This is perl 5, version 40, subversion 0 (v5.40.0) built for x86_64-linux-thread-multi-ld
...

This was implemented in Data::Dumper 2.187, which is not on CPAN, so you need perl 5.38 or newer.

[EvanCarroll]

@mauke why isn't it on cpan?

[haarg]

Because nobody has done the work to release it yet.

This will only be relevant for 5.36, but it would be nice to do.