Dan Kogai

NAME

Class::Axelerator - Evade OO taxes

VERSION

$Id: Axelerator.pm,v 0.2 2009/02/15 02:25:03 dankogai Exp dankogai $

SYNOPSIS

  my $obj = Klass->new(name => 'anon');
  use Class::Axelerator;
  $obj->name eq 'anon' or die;   # $obj->{name} ...
  $obj->name() eq 'anon' or die; # $obj->name() ...; no change
  $obj->pass = 'ymous';          # $obj->{pass} = ....
  no Class::Axelerator;

DESCRIPTION

Perl's object orientation (POO as follows) is powerful, flexible and ... expensive. Since all methods are implemented as function calls, even simple accessors are 2-4 times more costly than non OO approach. Simply put,

  my $attr = $obj->attr;

is 2-4x costlier than

  my $attr = $obj->{attr};

This module axelerates the code by replacing all occurance of ->whatever with ->{whatever}, while ->whatever() remains intact.

Since the blessed hash reference is the de-facto POO standard, this accelerates most cases. This is true for Class::Accessor and its friends and even Moose and its family.

Whenever you want to call the method, just append ().

It is recommended that you end the section to axelerate with no Class::Axelerator. This module is NOT LEXICAL and its effect spans till the end of source without it.

BENCHMARK

Here is a result of simple benchmark on my MacBook Pro. See t/benchmark.pl.

Accessor
                 Rate     normal axelerated
  normal     1035642/s         --       -78%
  axelerated 4797439/s       363%         --
Mutator
                  Rate     normal axelerated
  normal      920425/s         --       -80%
  axelerated 4691781/s       410%         --
Lvalue Mutator
                  Rate     normal axelerated
  normal     1281574/s         --       -72%
  axelerated 4637948/s       262%         --

Axelerate?

It comes naturally since this module accelerates accessors/mutators by axing encapslulation.

EXPORT

None. This is a source filter module.

AUTHOR

Dan Kogai, <dankogai at dan.co.jp>

BUGS

Tax evasion is considered felony in most countries and territories :)

Even in the Programming Republic of Perl, it is considered a bad practice.

Please report any bugs or feature requests to bug-class-axelerator at rt.cpan.org, or through the web interface at http://rt.cpan.org/NoAuth/ReportBug.html?Queue=Class-Axelerator. I will be notified, and then you'll automatically be notified of progress on your bug as I make changes.

SUPPORT

You can find documentation for this module with the perldoc command.

    perldoc Class::Axelerator

You can also look for information at:

ACKNOWLEDGEMENTS

Proof of concept http://blog.livedoor.jp/dankogai/archives/51077786.html

COPYRIGHT & LICENSE

Copyright 2009 Dan Kogai, all rights reserved.

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