From: "Randy W. Sims" <ml-ruby@...>
Date: 2004-09-14T01:55:59+09:00
Subject: Re: Singleton method on object via define_method?

gabriele renzi wrote:
> Randy W. Sims ha scritto:
> 
>> Sounds sort of like a traits[1] or what Perl 6 refers to as 
>> roles[2][3]. But, then this is deeper Ruby than I'm familiar with.
> 
> 
> I think traits mostly are what we call modules

I'm still learning Ruby, but aren't modules pretty much static? I think 
of traits as a set of behaviors that an object can take on at any point 
in it's lifetime. These behaviors are specific to that instance. They 
are transient behaviors that can be taken on and latter shed off. You 
would test for the presence of a trait before using it (much like 
testing is_a?). etc.

Randy.