debian man page for mouse::role

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

NAME
       Mouse::Role - The Mouse Role

VERSION
       This document describes Mouse version 0.99

SYNOPSIS
	   package Comparable;
	   use Mouse::Role; # the package is now a Mouse role

	   # Declare methods that are required by this role
	   requires qw(compare);

	   # Define methods this role provides
	   sub equals {
	       my($self, $other) = @_;
	       return $self->compare($other) == 0;
	   }

	   # and later
	   package MyObject;
	   use Mouse;
	   with qw(Comparable); # Now MyObject can equals()

	   sub compare {
	       # ...
	   }

	   my $foo = MyObject->new();
	   my $bar = MyObject->new();
	   $obj->equals($bar); # yes, it is comparable

DESCRIPTION
       This module declares the caller class to be a Mouse role.

       The concept of roles is documented in Moose::Manual::Roles.  This document serves as API documentation.

EXPORTED FUNCTIONS
       Mouse::Role supports all of the functions that Mouse exports, but differs slightly in how some items are handled (see "CAVEATS" below for
       details).

       Mouse::Role also offers two role-specific keywords:

   "requires(@method_names)"
       Roles can require that certain methods are implemented by any class which "does" the role.

       Note that attribute accessors also count as methods for the purposes of satisfying the requirements of a role.

   "excludes(@role_names)"
       This is exported but not implemented in Mouse.

IMPORT AND UNIMPORT
   import
       Importing Mouse::Role will give you sugar. "-traits" are also supported.

   unimport
       Please unimport ("no Mouse::Role") so that if someone calls one of the keywords (such as "has") it will break loudly instead breaking
       subtly.

CAVEATS
       Role support has only a few caveats:

       o   Roles cannot use the "extends" keyword; it will throw an exception for now.	The same is true of the "augment" and "inner" keywords
	   (not sure those really make sense for roles). All other Mouse keywords will be deferred so that they can be applied to the consuming
	   class.

       o   Role composition does its best to not be order-sensitive when it comes to conflict resolution and requirements detection. However, it
	   is order-sensitive when it comes to method modifiers. All before/around/after modifiers are included whenever a role is composed into a
	   class, and then applied in the order in which the roles are used. This also means that there is no conflict for before/around/after
	   modifiers.

	   In most cases, this will be a non-issue; however, it is something to keep in mind when using method modifiers in a role. You should
	   never assume any ordering.

SEE ALSO
       Mouse

       Moose::Role

       Moose::Manual::Roles

       Moose::Spec::Role

perl v5.14.2							    2012-06-30							  Mouse::Role(3pm)