From: Pavel Strnad <pavel.strnad@...>
Date: 2011-02-03T01:49:02+09:00
Subject: Amazing behavior of include module

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Hi,
I do not understand how is following code working:
irb(main):001:0> module AAA
irb(main):002:1> class BBB
irb(main):003:2> end
irb(main):004:1> end
=3D> nil
irb(main):005:0> BBB::BBB
NameError: uninitialized constant BBB
        from (irb):5
        from /usr/local/bin/irb:12:in `<main>'
irb(main):006:0> AAA::BBB::BBB
NameError: uninitialized constant AAA::BBB::BBB
        from (irb):6
        from /usr/local/bin/irb:12:in `<main>'
irb(main):007:0> include AAA
=3D> Object
irb(main):008:0> BBB::BBB
=3D> AAA::BBB
irb(main):009:0> BBB::BBB::BBB
=3D> AAA::BBB
irb(main):010:0> BBB::BBB::BBB::BBB
=3D> AAA::BBB
irb(main):011:0> AAA::BBB::BBB::BBB
=3D> AAA::BBB

I thought that last four lines will not work, but they do. How is it =
possible?
Thank you.
Pavel Strnad


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