From: ts <decoux@...>
Date: 2006-10-21T22:40:42+09:00
Subject: Re: instance_eval && class_eval

>>>>> "P" == Phrogz  <gavin@refinery.com> writes:


P> I'm not surprised by that. I'm surprised that standard def...end syntax
P> inside instance_eval behaves differently from being in the class scope,
P> when the self object in both cases is the same.

 def is a keyword and it don't use self to know where the method must be
 defined but it use an "internal" variable the "current" class.

P> irb(main):001:0> class Foo

 here you have

                    self = current class = Foo

P> irb(main):002:1>   p "Defining aa in #{self}##{self.object_id}"
P> irb(main):003:1>   def aa; p :aa; end
P> irb(main):004:1>   instance_eval{

 in instance_eval you have
                
                      self = Foo
                      current class = Foo singleton class

P> irb(main):005:2*     p "Defining bb in #{self}##{self.object_id}"
P> irb(main):006:2>     def bb; p :bb; end


Guy Decoux