Re: [Module::Build] version.pm and version number comparison problem

[Julian M. <ju...@me...>]

Chris Dolan wrote:
> On Feb 2, 2006, at 8:06 AM, John Peacock wrote:
> >    # Unbless it if it's a version.pm object
> > -  $result =3D "$result" if UNIVERSAL::isa( $result, 'version' );
> > +  $result =3D $result->numify if UNIVERSAL::isa( $result, 'version' );
>
> While we're at it, we should change the
>    UNIVERSAL::isa( $result, 'version' )
> to
>    eval { $result->isa('version') }
>
> See http://search.cpan.org/dist/UNIVERSAL-can/ for the
> justification.  :-)

"This is wrong and you should not do it." -- What kind of justification is=
=20
that??

Why is it wrong to do UNIVERSAL::isa($foo, $type)?  This usage is=20
documented in `perldoc UNIVERSAL`, and it works fine, after all.