Moose::Meta::Attribute::Native::Trait::Bool - Helper trait for Bool attributes
version 2.2201
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 Moose/BUGS for details on reporting bugs.
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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