alias for __PACKAGE__
CLASS and $CLASS are both synonyms for __PACKAGE__. Easier to type.

$CLASS has the additional benefit of working in strings.

CLASS is a constant, not a subroutine call. $CLASS is a plain variable,
it is not tied. There is no performance loss for using CLASS over
__PACKAGE__ except the loading of the module.

Maintainer: The OpenBSD ports mailing-list <ports@openbsd.org>

WWW: http://search.cpan.org/dist/CLASS/
