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MooseX-UndefTolerant-0.06
River stage one • 2 direct dependents • 5 total dependents
7 ++
/ MooseX::UndefTolerant::Attribute

NAME

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

SYNOPSIS

  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!

DESCRIPTION

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.

AUTHOR

Cory G Watson, <gphat at cpan.org>

COPYRIGHT & LICENSE

Copyright 2009 Cory G Watson.

This program is free software; you can redistribute it and/or modify it under the terms of either: the GNU General Public License as published by the Free Software Foundation; or the Artistic License.

See http://dev.perl.org/licenses/ for more information.