GSP
Quick Navigator

Search Site

Unix VPS
A - Starter
B - Basic
C - Preferred
D - Commercial
MPS - Dedicated
Previous VPSs
* Sign Up! *

Support
Contact Us
Online Help
Handbooks
Domain Status
Man Pages

FAQ
Virtual Servers
Pricing
Billing
Technical

Network
Facilities
Connectivity
Topology Map

Miscellaneous
Server Agreement
Year 2038
Credits
 

USA Flag

 

 

Man Pages


Manual Reference Pages  -  MOOSE::COOKBOOK::BASICS::IMMUTABLE (3)

.ds Aq ’

NAME

Moose::Cookbook::Basics::Immutable - Making Moose fast by making your class immutable

CONTENTS

VERSION

version 2.1605

SYNOPSIS



  package Point;
  use Moose;

  has x => ( isa => Int, is => ro );
  has y => ( isa => Int, is => rw );

  __PACKAGE__->meta->make_immutable;



DESCRIPTION

The Moose metaclass API provides a make_immutable() method. Calling this method does two things to your class. First, it makes it faster. In particular, object construction and destruction are effectively inlined in your class, and no longer invoke the meta API.

Second, you can no longer make changes via the metaclass API, such as adding attributes. In practice, this won’t be a problem, as you rarely need to do this after first loading the class.

CONCLUSION

We strongly recommend you make your classes immutable. It makes your code much faster, with a small compile-time cost. This will be especially noticeable when creating many objects.

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 XXXXX (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.

Search for    or go to Top of page |  Section 3 |  Main Index


perl v5.20.3 MOOSE::COOKBOOK::BASICS::IMMUTABLE (3) 2016-02-16

Powered by GSP Visit the GSP FreeBSD Man Page Interface.
Output converted with manServer 1.07.