From: Pokkai Dokkai <bad_good_lion@...>
Date: 2008-01-29T21:18:02+09:00
Subject: Re: can you do this ? ruby aptitute

Luc Heinrich wrote:
> On 29 janv. 08, at 10:47, Pokkai Dokkai wrote:
> 
>> how to pass @aa(in C2) value  to @bb(in C1) ?
>> @aa is a dynamic value
> 
> I first tried with various uses of Binding but couldn't get it to work.
> 
> This super-ugly hack works though;
> 
> # in source1.rb
> class C2; end
> class C1
>    def met
>      ObjectSpace.each_object(C2) { |o| @bb = o.instance_variable_get
> (:@aa) }
>      puts @bb
>    end
> end


nice answer

i tried many times but i can't

i got some confusing about this oops concept.

is there anyway to get the "current parent object instance variable" in
 "child object instance variable" ?

for example in above problem like

class C2
  def initialize(aa)
    @aa=aa
  end
  def met
  C1.new.met
  end
end
obj1=C2.new(1)
obj2=C2.new(2)
obj3=C2.new(3)
obj1.met    --> 1
obj2.met    --> 1
obj3.met    --> 1

but the answer should be like
obj1.met   ---> 1
obj2.met   ---> 2
obj3.met   ---> 3

do you have any idea to get like this answer ?
---------------------
i have one more doublt

if there is a object "parent_obj".It may be any type of Class ( not C2 
only ).
now assign parent_obj.aa=10
inside "parent_obj" have a "child_obj" ( like this parent_obj.child_obj 
)

now how to assign (aa=10) into parent_obj.child_obj.bb


this can be done as you told . but that is for some particular class 
only
for example like C2 ( ObjectSpace.each_object(C2) )




thank you
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