2001: How our Grandfathers wrote OO Perl

Brett started in Perl in 2001, got Damian's OO book and learned from there. Printed right before Perl 5.6.

This presentation is a poor substitute for the book.

• bless
• package
• Why is parent better than base
• new
• lexical closures for data protection
• state turns your subroutine into a co-routine (?)
  • A subroutine that retains state.
• Accessors
  • define directly
  • AUTOLOAD
  • dynamically (lazy AUTOLOAD, CPAN modules)
• Object::Tiny and Class::Accessor seem to be normal today
• overload.pm
• Exceptions
• Validation
  • Validate::Tiny
• tie
• Util::H2O - check it out

The presentation is available as a PDF.

Discussion on OO

Data Language

Dan Duncan explained about a data language he was working on.

https://metacpan.org/pod/distribution/Set-Relation/lib/Set/Relation.pod

We had 13 people attending the remote meeting on Zoom this month.