MooseX::UndefTolerant::Attribute - Make your attribute(s) tolerant to undef initialization

       Cory G Watson <gphat at cpan.org>

       This software is copyright (c) 2011 by Cory G Watson.

       This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5
       programming language system itself.

perl v5.36.0                                       2022-12-12              MooseX::UndefTolerant::Attribute(3pm)

       Applying this trait to your attribute makes its 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.

       MooseX::UndefTolerant::Attribute - Make your attribute(s) tolerant to undef initialization

       Bugs may be submitted through the RT bug tracker
       <https://rt.cpan.org/Public/Dist/Display.html?Name=MooseX-UndefTolerant> (or
       bug-MooseX-UndefTolerant@rt.cpan.org <mailto:bug-MooseX-UndefTolerant@rt.cpan.org>).

       There is also a mailing list available for users of this distribution, at
       <http://lists.perl.org/list/moose.html>.

       There is also an irc channel available for users of this distribution, at "#moose" on "irc.perl.org"
       <irc://irc.perl.org/#moose>.

         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!

       version 0.21