From: Rich Kilmer <rich@...>
Date: 2002-04-16T23:52:59+09:00
Subject: RE: RFC - class_added callback

Could it be used in AspectR to automatically append features to classes
when they are defined (maybe through a lookup table, etc)?  Or some type
of debugging system that would append fixtures to classes (patching,
etc).  Bob Calco and I have been contemplating what it would be like to
add a logic programming capability to Ruby what could respond to Ruby VM
events that kick off rules that cascade changes into the VM based on
Classes being added, etc.

I think if the capability was there the uses would emerge.

-rich

> -----Original Message-----
> From: Michal Rokos [mailto:m.rokos@sh.cvut.cz]
> Sent: Tuesday, April 16, 2002 10:04 AM
> To: ruby-talk ML
> Subject: Re: RFC - class_added callback
> 
> Hello,
> 
> In article <1018912246.993822.25667.nullmailer@picachu.netlab.jp>,
> Yukihiro Matsumoto wrote:
> > In message "Re: RFC - class_added callback"
> >     on 02/04/15, Michal Rokos <m.rokos@sh.cvut.cz> writes:
> >
> >|	I will be a little rude and answer by question: "What for is
> >|	"method added" and what for "inherited" callback?" The answer is
> >|	the same as for "class_added" callback.
> >
> > "method_added" is used for example by Ruby/Gtk to install gtk
callback.
> > "inherited" is used for example by singleton.rb to update "instance"
> method.
> > Then, it's your turn. ;-)
> 
> 	My turn, hmmm.
> 
> 	The problem is that I cannot give where is "class_added" example
> 	used, because it's brand new... :-)
> 
> 	But I can imagine that it can be handy for:
> 		- introspection
> 		- logger (to monitor what it happening)
> 		- the situation when the "inherited" callback cannot be
> 		  used - when people need to inform other
> 		  classes/modules (benefit of different "receiver" than
> 		  "inherited" has)
> 
> 	Uff - this all is a little dumb examples, but hopefully somebody
> 	can think of a better example.
> 
> 		Michal
> 
> 
> PS: to all: HELP FOLKS! :-)
> 
> --
>
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
> Michal Rokos                         Czech Technical University,
Prague
> E-mail:m.rokos@sh.cvut.cz  ICQ:36118339
Jabber:majkl@jabber.sh.cvut.cz
>
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-