From: ts <decoux@...>
Date: 2004-01-01T00:31:29+09:00
Subject: Re: Re: Overriding to_s

>>>>> "B" == Brad  <BCoish@Dymaxion.com> writes:

B> I guess I was being a bit naive, I thought Numeric was a base class
B> for Integer, Float, etc.  Is there any way to redefine to_s across

 Well, I've seen that I've said a stupidity : this is Fixnum which redefine
 #to_s and not Integer

 Numeric is a base class for Fixnum and Float

svg% ruby -e 'p Fixnum.ancestors; p Float.ancestors'
[Fixnum, Integer, Precision, Numeric, Comparable, Object, Kernel]
[Float, Precision, Numeric, Comparable, Object, Kernel]
svg% 

 but these 2 classes re-define #to_s

svg% ruby -e 'p Fixnum.instance_methods(false).grep(/to_s$/)'
["to_s"]
svg% 

svg% ruby -e 'p Float.instance_methods(false).grep(/to_s$/)'
["to_s"]
svg% 

svg% ruby -e 'p Integer.instance_methods(false).grep(/to_s/)'
[]
svg%
 
svg% ruby -e 'p Numeric.instance_methods(false).grep(/to_s/)'
[]
svg% 

B> the board, i.e. for Integer, Float, etc without having to duplicate
B> code for each numeric type?

 wait for 2.0. I suspect that some persons will use wrapper to do this
 (probably not its right use, I don't know ...)


Guy Decoux