From: Logan Capaldo <logancapaldo@...>
Date: 2006-09-26T21:47:22+09:00
Subject: Re: How to copy a method from one class to another

On Tue, Sep 26, 2006 at 05:24:48PM +0900, Robert Dober wrote:
> On 9/25/06, Gavin Kistner <gavin.kistner@anark.com> wrote:
> >
> ><SNIP>
> >Ruby's methods are not first-class functions like Lua or JavaScript
> >have. Other, first-class functions exist (procs/lambdas), but Methods
> >are not these.
> 
> 
> I tend to disagree, I do not know about Lua, but  for me Ruby's methods are
> pretty much first class
Sometimes people define first class in terms of the additional syntax
compared to other things you must use.
> <code>
> class A
>    def a; puts "#{self} == 42"; end
> end
> class B < A
>    define_method :another_a, A.instance_method(:a)
> end
> AA = Class.new A
> 
> A.new.a
> A.instance_method(:a).bind(AA.new).call
> B.new.another_a
> </code>
> 
> I do not know what can be done more in Lua and JavaScript but would be happy
> to  know.
> 
> <SNIP>
>
Interesting. Doesn't work outside of inheritence hierarchys though,
where in JavaScript you could. (Lua of course has no object system, save
whatever you want to graft on). 
> Cheers
> Robert
> -- 
> Deux choses sont infinies : l'univers et la b?tise humaine ; en ce qui
> concerne l'univers, je n'en ai pas acquis la certitude absolue.
> 
> - Albert Einstein