From: Gary Wright <gwtmp01@...>
Date: 2007-03-02T15:15:25+09:00
Subject: Re: Duck Typing  Hash-Like Objects


On Mar 2, 2007, at 12:39 AM, Joel VanderWerf wrote:
> There seems to be still some ambiguity in this description. In this  
> case:
>
>   h = {3 => 4}
>   A.new(1, 2, h)
>
> how do you know if _h_ is intended as the third object (in the  
> "zero or more objects" part) or as the optional hash?

You don't.  There just has to be a clear documentation for
the disambiguation rule. The caller could use:

    A.new(1,2, h, {})

If they wanted to force h to be part of the list of objects
instead of the optional trailing hash.


Gary Wright