From: Trans <transfire@...>
Date: 2006-12-27T04:57:06+09:00
Subject: Re: Hash with two identical keys?


Trans wrote:
> Trans wrote:
> > thanks Ara and Jon,
> >
> > I see what your saying. I was using #== not #eql? in comparing the
> > keys. So I see why it's faling now. How do I get aorund this? I'm
> > caching object based on therr initialization paramaters, which has to
> > be an array. Is there a simpler way or do I have to do something like:
> >
> >   class Parameters < Array
> >     alias :eql? :==
> >   end
>
> Ugh. Nothing like that works either. It's not using eql? or equal?, but
> rather #hash (I guess that's actually what you were trying to say Ara).
> This doen't make any sense to me. Why do identical strings and arrays
> have the same #hash value but not hashes?

Nope. It doesn't even use #hash. So it must be using #object_id with an
exception for Strings and Arrays. Dissapointing to say the least.

I had to resort to recursively converting all hashes to arrays.

T.