debian man page for object::role

Object::Role(3pm)					User Contributed Perl Documentation					 Object::Role(3pm)

NAME
       Object::Role - base class for non-Moose roles

SYNOPSIS
	{
	  package Object::Dumpable;
	  use base qw/Object::Role/;
	  use Data::Dumper;
	  sub import
	  {
	    my ($class, @args) = @_;
	    my ($caller, %args) = __PACKAGE__->parse_arguments(undef, @args);
	    my $coderef = sub
	      {
		my ($self) = @_;
		return Dumper($self);
	      };
	    __PACKAGE__->install_method(dump => $coderef, $caller);
	  }
	}

	{
	  package Foo;
	  use Object::Dumpable;
	  sub new { ... }
	}

	{
	  package main;
	  my $foo = Foo->new;
	  warn $foo->dump;
	}

DESCRIPTION
       This will be better documented once I fully understand it myself!

       The idea of this is to be a base class for roles like Object::DOES, Object::Stash and Object::ID. It handles parsing of import arguments,
       installing methods into the caller's namespace (like Exporter, but using a technique that is immune to namespace::autoclean) and tracking
       which packages have consumed your role.

       While "Object::Role" is a base class for roles, it is not itself a role, so does not export anything. Instead, your role must inherit from
       it.

   Methods
       "parse_arguments($default_arg_name, @arguments)"
	   Will parse:

	     package My::Class;
	     use My::Role -foo => 1, -bar => [2,3], 4, 5;

	   as:

	     (
	       'My::Class',   # caller,
	       (
		 '-foo' 	    => [1],
		 '-bar' 	    => [2, 3],
		 $default_arg_name  => [4, 5],
	       )
	     )

       "install_method($subname => $coderef, $package)"
	   Installs $coderef as "$package::$subname".

	   Automatically calls register_consumer($package).

       "register_consumer($package)"
	   Records that $package has consumed (used) your role.

       "has_consumer($package)"
	   Check if $package has consumed (used) your role.

BUGS
       Please report any bugs to http://rt.cpan.org/Dist/Display.html?Queue=Object-Role <http://rt.cpan.org/Dist/Display.html?Queue=Object-Role>.

SEE ALSO
       Object::DOES, Object::AUTHORITY.

AUTHOR
       Toby Inkster <tobyink@cpan.org>.

COPYRIGHT AND LICENCE
       This software is copyright (c) 2011 by Toby Inkster.

       This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself.

DISCLAIMER OF WARRANTIES
       THIS PACKAGE IS PROVIDED "AS IS" AND WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
       MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.

perl v5.14.2							    2011-12-15							 Object::Role(3pm)