Tobias Reif wrote:

> Hi,
> 
> how can I programmatically find out which objects a certain method can 
> take if any?
> 
> Tobi
> 

Tobi, I think this an issue in all languages that have a type system 
like Ruby's.  I've heard what you are wanting to do referred to as "Type 
Inference".  Lex Spoon is doing some Squeak work that you might want to 
have a look at:

http://www.cc.gatech.edu/~lex/ti/ti.html

Leslie Hensley
pretsel on #ruby-lang