From: "Brian Schröder" <ruby.brian@...>
Date: 2005-06-01T19:03:25+09:00
Subject: Re: array of object insert polices

On 01/06/05, dave <dave.m@email.it> wrote:
> 
> > It gets uglier as you go on :-):-) .... So you may have to listen to
> RobertK's idea also.
> 
> which are (all) the methods should i filter?
> []=, <<..
> 
> -------------------------
> class IA < Array
>   def ensure_int(obj)
>     raise TypeError, "Not an int: #{obj.inspect}" unless (Integer === obj)
>   end
> 
>   def []= (index, other)
>     ensure_int(other)
>     super index, other
>   end
> end
> ----------------------------------
> 
> isn't there any hack for this dirty work?
> 
> 

You should have a look at the thread:

Uniform vector class, inheriting from Array: How to make sure that
methods return a Vector and not an Array?
http://groups-beta.google.com/group/comp.lang.ruby/browse_frm/thread/8d339eecc8624556/4fafe7b359e0fcfb?q=uniform+vector+class&rnum=1&hl=en#4fafe7b359e0fcfb

regards,

Brian

> 


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