From: Jeff Mitchell <quixoticsycophant@...>
Date: 2004-04-29T13:18:38+09:00
Subject: Re: alias or alias_method problem


--- Kristof Bastiaensen <kristof@vleeuwen.org> wrote:
> Hi,
> 
> On Thu, 29 Apr 2004 08:36:03 +0900, Angel Martin wrote:
> 
> >   alias_method "_[]=","[]="
> >   alias_method "_[]" ,"[]"
> 
> I guess renaming to something with "[]" in the name
> will not work, (due to the way Ruby compiles expressions).
> 
> >     _[*ag]=value 
> 
> Will try to evaluate _, and then calls []= on the result.
> (It seems that _ evaluates to nil inside irb, 
> I don't understand why...)

99% of the time alias_method is used in conjunction with
redefining a method.  The above issues would have been
avoided if ruby had something like,

redef foo(*args)
   puts "new foo"
   previous(*args)  # calls old foo
end



	
		
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