From: gabriele renzi <surrender_it@...1.vip.ukl.yahoo.com>
Date: 2004-07-17T02:42:16+09:00
Subject: Re: Altering method lookup

il Sat, 17 Jul 2004 02:23:04 +0900, Claus Spitzer
<DocBoobenstein@gmail.com> ha scritto::

>I'm working on a project based on a Smalltalk paper, and a part of it
>is to attempt to emulate changes in method lookup in Ruby as done in
>Smalltalk. Namely, the paper mentions an alteration of the
>no_such_method method in Smalltalk to have it do something before and
>after each method execution. In Ruby, I have come as far as doing

was'nt it doesNotUnderstand: ?
>   #/usr/bin/env ruby
>   
>   class Foo
>      def bar( baz, qux )
>         print baz << " is quite a " << qux << "\n"
>      end
>      
>      def method_missing( aSymbol , *args )
>         print "before\n"
>         send( :bar, *args )

probably 
 bar *args 
would be enough.. Anyway remember to even handle given blocks

>Again, after some thinking it does what it is supposed to do (since
>method bar is defined, method_missing never gets called). But it is
>not what I intend it to do (eventually). 

 define your own class and delete *all* the methods except __send__
and maybe __id__. Then inherit from that. 
see:
http://onestepback.org/index.cgi/Tech/Ruby/BlankSlate.rdoc


also, this may be interesting to you IIUC:
http://www.thekode.net/ruby/techniques/CapturingMethods.html