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Manual Reference Pages  -  MOOSE::META::ATTRIBUTE::NATIVE::TRAIT::BOOL (3)

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NAME

Moose::Meta::Attribute::Native::Trait::Bool - Helper trait for Bool attributes

CONTENTS

VERSION

version 2.1605

SYNOPSIS



  package Room;
  use Moose;

  has is_lit => (
      traits  => [Bool],
      is      => rw,
      isa     => Bool,
      default => 0,
      handles => {
          illuminate  => set,
          darken      => unset,
          flip_switch => toggle,
          is_dark     => not,
      },
  );

  my $room = Room->new();
  $room->illuminate;        # same as $room->is_lit(1);
  $room->darken;            # same as $room->is_lit(0);
  $room->flip_switch;       # same as $room->is_lit(not $room->is_lit);
  return $room->is_dark;    # same as !$room->is_lit



DESCRIPTION

This trait provides native delegation methods for boolean values. A boolean is a scalar which can be 1, 0, "", or undef.

DEFAULT TYPE

If you don’t provide an isa value for your attribute, it will default to Bool.

PROVIDED METHODS

None of these methods accept arguments.
o <B>setB>

Sets the value to 1 and returns 1.

o <B>unsetB>

Set the value to 0 and returns 0.

o <B>toggleB>

Toggles the value. If it’s true, set to false, and vice versa.

Returns the new value.

o <B>notB>

Equivalent of ’not $value’.

BUGS

See BUGS in Moose for details on reporting bugs.

AUTHORS

o Stevan Little <stevan.little@iinteractive.com>
o Dave Rolsky <autarch@urth.org>
o Jesse Luehrs <doy@tozt.net>
o Shawn M Moore <code@sartak.org>
o XXXX XXXXX (Yuval Kogman) <nothingmuch@woobling.org>
o Karen Etheridge <ether@cpan.org>
o Florian Ragwitz <rafl@debian.org>
o Hans Dieter Pearcey <hdp@weftsoar.net>
o Chris Prather <chris@prather.org>
o Matt S Trout <mst@shadowcat.co.uk>

COPYRIGHT AND LICENSE

This software is copyright (c) 2006 by Infinity Interactive, Inc.

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

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perl v5.20.3 MOOSE::META::ATTRIBUTE::NATIVE::TRAIT::BOOL (3) 2016-02-16

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