From: murphy <murphy@...>
Date: 2007-09-11T13:19:37+09:00
Subject: Re: Proposal: runtime-modifying Kernel methods should be keywords

James Edward Gray II schrieb:
>> gsub sets $_ in the caller's scope.
> 
> Which is probably another feature of questionable value.  I know it's
> handy in one-liners, but outside of that code using $_ has been out of
> fashion for some time now.
Is it? I've scanned my local gems, and 29 of 34 use $0-9 somewhere. For
example, Rails and HighLine. Actually, I like it better than MatchData.

Please don't change Ruby too much for performance reasons. It seems that
making local_variables a keyword (or a magic constant like __LINE__)
doesn't change the power of the language, since I can't make use of its
method-ness anyway. But dumping $0 and friends for a little more speed
seems too much, even for Ruby 2.0.

[murphy]