Re: unexpected return using define_method

Akinori MUSHA wrote:
> True, and you can always ask ko1 to add a longstanding bug that's
> caused by the core engine.

 I'm not sure that he'll like it

vgs% cat b.rb
def a
   Module.new do
      def foo
         super
      end
   end
end

M = a
N = a

class C
  include M
end
C.new.foo
vgs% 

vgs% ./ruby -v b.rb
ruby 1.9.0 (2008-05-30 revision 16708) [i686-linux]
b.rb:4:in `foo': stack level too deep (SystemStackError)
	from b.rb:4:in `foo'
	from b.rb:4:in `foo'
	from b.rb:4:in `foo'
	from b.rb:4:in `foo'
	from b.rb:4:in `foo'
	from b.rb:4:in `foo'
	from b.rb:4:in `foo'
	from b.rb:4:in `foo'
	 ... 7692 levels...
	from b.rb:4:in `foo'
	from b.rb:4:in `foo'
	from b.rb:4:in `foo'
	from b.rb:15:in `<main>'
vgs% 

vgs% cat b.rb
class A
   @@a = 'A'
   def a=(x)
      @@a = x
   end
   def a
      @@a
   end
end

B = A.dup
B.new.a = 'B'
p A.new.a
vgs% 

vgs% ./ruby -v b.rb
ruby 1.9.0 (2008-05-30 revision 16708) [i686-linux]
"B"
vgs% 



 There were, at least, 3 cases where ruby need to duplicate iseq, he
 has just removed one case.


Guy Decoux