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

version 2.0010

  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

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

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

None of these methods accept arguments.

* set

Sets the value to 1 and returns 1.

* unset

Set the value to 0 and returns 0.

* toggle

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

Returns the new value.

* not

Equivalent of 'not $value'.

See BUGS in Moose for details on reporting bugs.

Stevan Little <stevan@iinteractive.com>

This software is copyright (c) 2011 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.