From: Vincent Fourmond <vincent.fourmond@9online.fr>
Date: 2007-02-18T07:23:58+09:00
Subject: Re: Oppinions on RCR for dup on immutable classes

ara.t.howard@noaa.gov wrote:
>> With this in mind, what do you guys think of this work around?
>>
>>>> [sandal@metta payroll_camping]$ irb
>>>> class Object
>>>>   def dup?
>>>>     dup
>>>>   rescue TypeError
>>>>     false
>>>>   end
>>>> end
>> => nil
>>>> 3.dup?
>> => false
>>>> 3.dup? || 3
>> => 3
>>>> "foo".dup?
>> => "foo"
>>
> 
> same semantics - but nice and clean.

+1

-- 
Vincent Fourmond, PhD student (not for long anymore)
http://vincent.fourmond.neuf.fr/