From: Pit Capitain <pit@...>
Date: 2005-11-25T16:38:04+09:00
Subject: Re: syntax error when defining index setter []=

jchris@gmail.com schrieb:
> Pit,
> 
> Thanks for the glimmer of hope. The only problem I'm finding at this
> point is that "middlemen" is out of scope when result.[]= is actually
> run. I tried saving self to a variable ('saved_self') and then using
> saved_self.middlemen[index] to get in there, but saved_self is just out
> of scope then.
> 
> NameError: undefined local variable or method `saved_self' for
> #<Array:0x248a294>
> 
> Scope. hmmm, that seems like it should be a Rubyish problem to solve.
> Probably with blocks or procs...

Yes, I noticed it after sending the code. You'd need define_method with 
a block, which would have access to the local variables. But see David's 
code for a working implementation. (BTW: nice idea to reuse the array 
with the singleton method!)

Regards,
Pit