From: Hugh Sasse Staff Elec Eng <hgs@...>
Date: 2001-11-23T01:24:33+09:00
Subject: [ruby-talk:26154] Re: Passing class names to constructors.

On Fri, 23 Nov 2001, Dave Thomas wrote:

> Hugh Sasse Staff Elec Eng <hgs@dmu.ac.uk> writes:
>
> > class TangledRope
> >     def initialize(knotclass = :Knot)
> >         mess = Array.new()
> >         (10*rand()).times do {
> >             mess.push(knotclass.something.new())
>
> If instead of passing in the symbol, you passed the class itself, you
> could just do:
>
>    mess << Class.new(knotclass)

Can I do this if I have already defined class Knotclass?
The intention is to allow users to define their classes with
conventional subclassing, and then pass these subclasses into my
constructor.  So I'm thinking that:
>
> Does the symbol buy you anything here?

what it buys me is not doing Class.new(Knotclass) where Knotclass is
*already* defined.
>
>
> Dave
>
	Hugh