From: Christoph Rippel <crippel@...>
Date: 2001-04-05T15:46:11+09:00
Subject: [ruby-talk:13504] Singleton bugs?

Hi,

is this a bug?  - If not can somebody explain this to me (cygwin 1.7 (4-03) )

-----------
def change_all(bla)
    class << bla
    def peak; K end
    end
end

class A; end
class B; end

Ma = \
class << (a = A.new)
 	K = "A"
 	self
end

Mb = \
class << (b = B.new)
	K = "B"
	self
end

change_all(a)
change_all(b)

p a.peak # => "B"
p b.peak  # => "B"

change_all(a)

p a.peak # => "A"
p b.peak  # => "A"

p a.instance_eval { K }  # => "A"
p b.instance_eval { K } # => "B"

p Ma::K  # = > "A"  
p Mb::K  # => "B"


Christoph