Linux cli command Moose_Util_MetaRolepm

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NAME 🖥️ Moose_Util_MetaRolepm 🖥️

Apply roles to any metaclass, as well as the object base class

VERSION

version 2.2207

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:

  • for => $name This specifies the class 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).

  • 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

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

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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