Karen Etheridge > Moose-Autobox-0.16 > Moose::Autobox::Code

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Module Version: 0.16   Source  

NAME ^

Moose::Autobox::Code - the Code role

VERSION ^

version 0.16

SYNOPSIS ^

  use Moose::Autobox;

  my $adder = sub { $_[0] + $_[1] };
  my $add_2 = $adder->curry(2);

  $add_2->(2); # returns 4

  # create a recursive subroutine
  # using the Y combinator
  *factorial = sub {
      my $f = shift;
      sub {
          my $n = shift;
          return 1 if $n < 2;
          return $n * $f->($n - 1);
      }
  }->y;

  factorial(10) # returns 3628800

DESCRIPTION ^

This is a role to describe operations on the Code type.

METHODS ^

curry (@values)
rcurry (@values)
conjoin (\&sub)
disjoin (\&sub)
compose (@subs)

This will take a list of @subs and compose them all into a single subroutine where the output of one sub will be the input of another.

y

This implements the Y combinator.

u

This implements the U combinator.

meta

SEE ALSO ^

http://en.wikipedia.org/wiki/Fixed_point_combinator
http://blade.nagaokaut.ac.jp/cgi-bin/scat.rb/ruby/ruby-talk/20469

SUPPORT ^

Bugs may be submitted through the RT bug tracker (or bug-Moose-Autobox@rt.cpan.org).

There is also a mailing list available for users of this distribution, at http://lists.perl.org/list/moose.html.

There is also an irc channel available for users of this distribution, at #moose on irc.perl.org.

AUTHOR ^

Stevan Little <stevan.little@iinteractive.com>

COPYRIGHT AND LICENSE ^

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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