| Subject: | under $^W, warning on undef |
The following program :
use Scalar::Does;
$^W = 1;
print does(undef, 'HASH') ? 'yes' : 'no';
produces this warning :
Use of uninitialized value in subroutine entry at
D:/strawberry/perl/lib/overload.pm line 112.
So it seems that the call to mro::get_linear_isa should first check if
$package is defined.
If I replace "$^W = 1" by "use warnings", everything is fine.
I know, $^W is obsolete, but I came to this problem because
Module::Build still uses it.
By the way, thanks for Scalar::Does, it's a great module. I'm in the
process of converting Data::Domain to depend on this. Before that I've
been struggling with various checks of refs, reftypes, overloads, etc.;
now it's very nice to have all this encapsulated in a single call.