Scott Walters > Acme-RightSideOutObject-0.01 > Acme::RightSideOutObject

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Module Version: 0.01   Source  

NAME ^

Acme::RightSideOutObject - Turn Class::InsideOut objects back right side out

SYNOPSIS ^

  use Acme::RightSideOutObject;

  use My::Class;
  # My::Class comes from the L<Class::InsideOut> SYNOPSIS

  my $inside_out = My::Class->new or die; 
  $inside_out->name("Fred");
  print $inside_out->greeting(), "\n"; # prints Hello, my name is Fred

  my $rightside_out = guts($inside_out);
  print '$rightside_out->{name} = ', $rightside_out->{name}, "\n"; # direct hash read
  $rightside_out->{name} = 'Dork Face';        # direct hash write
  print $inside_out->greeting(), "\n";         # prints Hello, my name is Dork Face
  print $rightside_out->greeting(), "\n";      # prints Hello, my name is Dork Face

DESCRIPTION ^

Exports guts() which takes a Class::InsideOut object and returns a normal blessed hashref object.

One of the most serious flaws of Class::InsideOut is that it encapsulates data, making it difficult to directly minipulate the object's internal state. Attempting to inspect the reference to an inside out object with Data::Dumper, you'll find this:

    $VAR1 = bless( do{\(my $o = undef)}, 'My::Class' );

Fear not! Acme::RightSideOutObject to the rescue!

Acme::RightSideOutObject work exactly like the inside out object it replaces except that it is also a hashref full of the object's instance data. Methods may be called on it.

Options are available, mix and match style:

  use Acme::RightSideOutObject 'weaken';

Attempt not to leak so much memory.

  use Acme::RightSideOutObject 'debug';

Print information to STDERR about instance data found while righting objects.

EXPORT

guts()

HISTORY ^

0.01

Original version; created by h2xs 1.23 with options

  -A -C -X -b 5.8.0 -c -n Acme::RightSideOutObject

BUGS ^

Leaks memory.

Can't subclass inside out objects with right side out code (but obviously has-a style delegation works).

Should support other flavors of inside out objects than just Class::InsideOut.

Doesn't use the exporter.

The inside out object and the per-attribute hashes continue to exist; this only creates a fascade. With some B hackery, we could actually rewrite the code of inside out objects to be right side out and utter destroy the previous inside out-edness.

SEE ALSO ^

Class::InsideOut
autobox::Closure::Attributes
Data::Alias

AUTHOR ^

Scott Walters, <scott@slowass.net>, at the suggestion of Jonathan Rockway, <jrockway@cpan.org>. The real magic is done by Data::Alias.

COPYRIGHT AND LICENSE ^

Copyright (C) 2009 by Scott Walters

This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself, either Perl version 5.8.9 or, at your option, any later version of Perl 5 you may have available.

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