InfoQ Presentation: MetaProgramming Ruby

Posted by Werner Schuster on Dec 07, 2007 10:15 AM

Community

Ruby

Topics

Domain Specific Languages,

Language,

Ruby on Rails,

Programming

Tags

Qcon London 2006,

Metaprogramming,

Ruby on Rails

Metaprogramming is one of the technologies used to implement some distinctive Ruby on Rails features such as has_many. In this presentation, Dave Thomas (PragDave) focuses on the Ruby features that make metaprogramming possible:

• Class definitions are active - they get executed
  This allows to execute custom code when a class gets first loaded.
• All method calls have a receiver, i.e. a self object
  A crucial fact in Ruby - Dave explains how self some methods of metaprogramming work with manipulating self.
• Classes are objects too
• Open and singleton classes - it's always possible to add members to classes

Other topics include how to use eval flexibly with bindings and more.

Check out "MetaProgramming Ruby".

1. Back to top

   This is cool!!!

   Dec 18, 2007 9:02 PM by Jure Srsen

   Tnx. It would be really nice if more Ruby presentations like this would be available.

   Reply

2. Back to top

   eph

   Dec 19, 2007 3:55 PM by Andrei Zinca

   An otherwise good presentation ruined by an awful, macabre joke.

   Reply

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   problems

   Dec 20, 2007 10:24 AM by jimmy coyne

   Is any body else having problems viewing this presentation?

   Reply

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   Re: problems

   Dec 22, 2007 11:58 AM by Sean Cribbs

   +1

   Reply

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   Re: problems

   Dec 28, 2007 3:00 AM by johan andries

   On Windows, for me it works in IE but not in FireFox.

   Reply

6. Back to top

   Re: problems

   Sep 13, 2008 4:18 AM by sohbet sohbet

   Sohbet Sohbet odaları Sohbet kanalları cet Sohbet siteleri chat kanalları thank you wery much admin wery good

   Reply

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