NAME

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

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

Jason May

COPYRIGHT AND LICENSE

Copyright 2007-2010 by Infinity Interactive, Inc.

http://www.iinteractive.com

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