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Re: Perl - Is it an OO Language

by Zaxo (Archbishop)
on Aug 26, 2002 at 18:11 UTC ( #192964=note: print w/replies, xml ) Need Help??


in reply to Perl - Is it an OO Language

Encapsulation is done with closures:

{ my $secret = qr/^word$/; sub guess { $_ = shift || ''; m/$secret/; } }

Polymorphism is done with use overload $op => sub {};, or with overriding functions. There are lots of examples in the link. Both mechanisms respect inheritance.

Don't worry about 'true' OO. That is a chimera cooked up by religionists of various languages to put down other languages. Many take the ability to do something besides OO as disqualifying. OO is a methodology for design and structure. It's not the only one.

Object Oriented Perl by TheDamian is the primary reference book. Perl's perlboot, perltoot, perltooc (AKA perltootc in 5.6 - thanks, demerphq, for pointing that out), perlbot are in the distribution as tutorials, along with perlref, perlobj, perlmod as references.

After Compline,
Zaxo

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[ambrus]: choroba: heh heh... I have such a doc bug report somewhere. fixed by now.
[Corion]: Once upon a time I had automatic tests for checking the synopsis, but I stopped doing that because the setup was too fragile on CPAN testers for extracting code from the SYNOPSIS.
[Corion]: Maybe I should move the extraction of the code from the SYNOPSIS section into the author tests, or something like that...
[choroba]: Corion Sounds reasonable
[Corion]: choroba: Yeah - I basically have the same for regenerating README and README.mkdown already, except that I do that in Makefile.PL, but I guess one or the other thing should somehow work ;)
[ambrus]: was this bug: https://rt.cpan. org/Public/Bug/ Display.html?id= 59814

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