From: Florian Gross <flgr@...>
Date: 2004-06-29T04:57:56+09:00
Subject: Re: [OT] Re: Is it considered Harmful?

Sean O'Dell wrote:

>>Oddly, Sean, when you are saying, "it worked like I said it could",
>>I am hearing Guy saying, "yes - but it doesn't work like I said it
>>wouldn't."
> Oh no, I didn't mean it was TOTALLY stable.  I just meant it appeared stable 
> to me and I wanted some people who knew better about the Ruby internals to 
> make an assessment, which is why I brought it up in ruby-core.

You might not have noticed it, but that is exactly what ts did. And matz 
once stated that if he were to be hit by a bus that he would want ts to 
take over Ruby's development. If you ask me, ts has more than enough 
knowledge of Ruby's internals to rightly do point out errors -- and 
that's exactly what he did as far as I see the whole situation.

> In fact, I still have the feature installed here.  If someone could show me 
> some Ruby code that makes Ruby crash with the #class= method I implemented, I 
> would be more than happy to retract even that much.  Show me code that 
> crashes my #class= implementation; I already assume it can be done, now just 
> show me how.

I haven't tested these with your implementation, but they once were 
problematic in evil.rb.

Object.class = Object # ?
Class.class = Module # ?
5.class = Object # ?
obj = Time.new; require 'stringio'; obj.class = StringIO # ?

Regards,
Florian Gross