From: Kent Dahl <kentda@...>
Date: 2001-11-23T00:55:45+09:00
Subject: [ruby-talk:26146] Re: Passing class names to constructors.

Hugh Sasse Staff Elec Eng wrote:
> 
> If I want to create a variable number of objects, all of
> subclasses of one class, then how do I do that?
> Eg in my knots example I might want
> 
> class TangledRope
>     def initialize(knotclass = :Knot)
>         mess = Array.new()
>         (10*rand()).times do {

		something = Module.const_get( knotclass )
		mess.push( something.new() )

>         }
> end
> 
> so how do I turn the symbol into the class, so I can do things with it?
> I don't like the obvious way: Deliver Us From Eval!  :-)


	Module.const_get( aSymbol ) # is much nicer that eval

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