MooseX::UndefTolerant::Attribute - Make your attribute(s) tolerant to undef initialization
package My:Class; use Moose; use MooseX::UndefTolerant::Attribute; has 'bar' => ( traits => [ qw(MooseX::UndefTolerant::Attribute)], is => 'ro', isa => 'Num', predicate => 'has_bar' ); # Meanwhile, under the city... # Doesn't explode my $class = My::Class->new(bar => undef); $class->has_bar # False!
Applying this trait to your attribute makes it's initialization tolerant of of undef. If you specify the value of undef to any of the attributes they will not be initialized (or will be set to the default, if applicable). Effectively behaving as if you had not provided a value at all.
Cory G Watson <gphat at cpan.org>
This software is copyright (c) 2011 by Cory G Watson.