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Moose::Util::MetaRole(User Contributed Perl DocumentatMoose::Util::MetaRole(3)

NAME
       Moose::Util::MetaRole - Apply roles to any metaclass, as	well as	the
       object base class

VERSION
       version 2.2013

SYNOPSIS
	 package MyApp::Moose;

	 use Moose ();
	 use Moose::Exporter;
	 use Moose::Util::MetaRole;

	 use MyApp::Role::Meta::Class;
	 use MyApp::Role::Meta::Method::Constructor;
	 use MyApp::Role::Object;

	 Moose::Exporter->setup_import_methods(	also =>	'Moose'	);

	 sub init_meta {
	     shift;
	     my	%args =	@_;

	     Moose->init_meta(%args);

	     Moose::Util::MetaRole::apply_metaroles(
		 for		 => $args{for_class},
		 class_metaroles => {
		     class	 => ['MyApp::Role::Meta::Class'],
		     constructor => ['MyApp::Role::Meta::Method::Constructor'],
		 },
	     );

	     Moose::Util::MetaRole::apply_base_class_roles(
		 for   => $args{for_class},
		 roles => ['MyApp::Role::Object'],
	     );

	     return $args{for_class}->meta();
	 }

DESCRIPTION
       This utility module is designed to help authors of Moose	extensions
       write extensions	that are able to cooperate with	other Moose
       extensions. To do this, you must	write your extensions as roles,	which
       can then	be dynamically applied to the caller's metaclasses.

       This module makes sure to preserve any existing superclasses and	roles
       already set for the meta	objects, which means that any number of
       extensions can apply roles in any order.

USAGE
       The easiest way to use this module is through Moose::Exporter, which
       can generate the	appropriate "init_meta"	method for you,	and make sure
       it is called when imported.

FUNCTIONS
       This module provides two	functions.

   apply_metaroles( ...	)
       This function will apply	roles to one or	more metaclasses for the
       specified class.	It will	return a new metaclass object for the class or
       role passed in the "for"	parameter.

       It accepts the following	parameters:

       o   for => $name

	   This	specifies the class or for which to alter the meta classes.
	   This	can be a package name, or an appropriate meta-object (a
	   Moose::Meta::Class or Moose::Meta::Role).

       o   class_metaroles => \%roles

	   This	is a hash reference specifying which metaroles will be applied
	   to the class	metaclass and its contained metaclasses	and helper
	   classes.

	   Each	key should in turn point to an array reference of role names.

	   It accepts the following keys:

	   class
	   attribute
	   method
	   wrapped_method
	   instance
	   constructor
	   destructor
	   error
       o   role_metaroles => \%roles

	   This	is a hash reference specifying which metaroles will be applied
	   to the role metaclass and its contained metaclasses and helper
	   classes.

	   It accepts the following keys:

	   role
	   attribute
	   method
	   required_method
	   conflicting_method
	   application_to_class
	   application_to_role
	   application_to_instance
	   application_role_summation
	   applied_attribute

   apply_base_class_roles( for => $class, roles	=> \@roles )
       This function will apply	the specified roles to the object's base
       class.

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

AUTHORS
       o   Stevan Little <stevan.little@iinteractive.com>

       o   Dave	Rolsky <autarch@urth.org>

       o   Jesse Luehrs	<doy@tozt.net>

       o   Shawn M Moore <code@sartak.org>

       o   xxxx	x<section>xx'xx	(Yuval Kogman) <nothingmuch@woobling.org>

       o   Karen Etheridge <ether@cpan.org>

       o   Florian Ragwitz <rafl@debian.org>

       o   Hans	Dieter Pearcey <hdp@weftsoar.net>

       o   Chris Prather <chris@prather.org>

       o   Matt	S Trout	<mst@shadowcat.co.uk>

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.

perl v5.32.1			  2020-07-21	      Moose::Util::MetaRole(3)

NAME | VERSION | SYNOPSIS | DESCRIPTION | USAGE | FUNCTIONS | BUGS | AUTHORS | COPYRIGHT AND LICENSE

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