NAME

Moose::Meta::Attribute::Native::Trait::Number - Helper trait for Num attributes

SYNOPSIS

  package Real;
  use Moose;

  has 'integer' => (
      traits  => ['Number'],
      is      => 'ro',
      isa     => 'Num',
      default => 5,
      handles => {
          set => 'set',
          add => 'add',
          sub => 'sub',
          mul => 'mul',
          div => 'div',
          mod => 'mod',
          abs => 'abs',
      },
  );

  my $real = Real->new();
  $real->add(5);    # same as $real->integer($real->integer + 5);
  $real->sub(2);    # same as $real->integer($real->integer - 2);

DESCRIPTION

This trait provides native delegation methods for numbers. All of the operations correspond to arithmetic operations like addition or multiplication.

DEFAULT TYPE

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

PROVIDED METHODS

All of these methods modify the attribute's value in place. All methods return the new value.

• add($value)

  Adds the current value of the attribute to $value.

• sub($value)

  Subtracts $value from the current value of the attribute.

• mul($value)

  Multiplies the current value of the attribute by $value.

• div($value)

  Divides the current value of the attribute by $value.

• mod($value)

  Returns the current value of the attribute modulo $value.

• abs

  Sets the current value of the attribute to its absolute value.

BUGS

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

AUTHOR

Robert Boone

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.