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Moose::Meta::Attribute::Native::Trait::Bool(3pm) User Contributed Perl Documentation Moose::Meta::Attribute::Native::Trait::Bool(3pm)

NAME

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

VERSION

version 2.0603

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.
•
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'.

BUGS

See "BUGS" in Moose for details on reporting bugs.

AUTHOR

Moose is maintained by the Moose Cabal, along with the help of many contributors. See "CABAL" in Moose and "CONTRIBUTORS" in Moose for details.

COPYRIGHT AND LICENSE

This software is copyright (c) 2012 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.
2012-06-28 perl v5.14.2