From: Trans <transfire@...>
Date: 2006-09-26T21:55:14+09:00
Subject: Re: How to copy a method from one class to another


Logan Capaldo wrote:
> 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>

They are Functor, but they are not 1st class

Object.instance_method(:send).object_id ==
Object.instance_method(:send).object_id
=> false

T.