From: Eric Hodel <drbrain@...7.net>
Date: 2006-07-15T02:26:34+09:00
Subject: Re: Preferred monkeypatching technique

On Jul 14, 2006, at 10:02 AM, Logan Capaldo wrote:
> Neat idea, gensym in Ruby. I would suggest making it thread-safe  
> though:
>
> % cat gensym.rb
> require 'mutex'
> class Symbol
>   GensymLock = Mutex.new
>   def self.gensym
>     GensymLock.synchronize {
>       @@gensym_count ||= 0
>       @@gensym_count += 1
>       ("__gensym__%X" % @@gensym_count).intern
>     }
>   end
> end

You don't need a mutex.

class Symbol
   @gensym_count = 0
   def self.gensym
     ("__gensym__%X" % @gensym_count += 1).intern
   end
end

-- 
Eric Hodel - drbrain@segment7.net - http://blog.segment7.net
This implementation is HODEL-HASH-9600 compliant

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