From: Anders Borch <spam@...>
Date: 2003-07-01T05:23:35+09:00
Subject: Re: dynamic object creation

Brian Candler wrote:

> On Tue, Jul 01, 2003 at 01:01:25AM +0900, Aryeh Friedman wrote:
> 
>>If I have something like this:
>>
>>s="Array"
>>
>>How whould I get something like this:
>>
>>aObject=s.new
>>
>>In "plain" english I am asking if I have a valid name of a class in a
>>string how do I create an instance of the class the string contains?
> 
> 
> A class name is just a constant, so something like
> 
>    a = Module.const_get("Array").new

uhm... why does this work?

I just tested it and to my surprise it worked?!

http://rubycentral.com/book/ref_c_module.html#Module.const_get

says that I need to supply a symbol, why does it accept a string?

is this something that will continue to work in 1.8? (im still using 
1.6.8 on my winbox and 1.6.7 on my linux box)

> 
> is what you need (Aside: what's the proper way to access 'the top-level
> Module', or is the above correct?)
> 
> Cheers,
> 
> Brian.
> 


-- 
dc -e 
4dd*od3*dddn1-89danrn10-dan3+ann6*dan*2*an13dn1+dn2-dn3+5*ddan2/9+an13nap