metakoans.rb is an arduous set of exercises designed to stretch meta-programming muscle. the focus is on a single method 'attribute' which behaves much like the built-in 'attr', but whose properties require delving deep into the depths of meta-ruby. usage of the 'attribute' method follows the general form of
class C
attribute 'a'
end
o = C::new
o.a = 42 # setter - sets @a
o.a # getter - gets @a
o.a? # query - true if @a
but reaches much farther than the standard 'attr' method as you will see shortly.
your path, should you choose to follow it, is to write a single file 'knowledge.rb' implementing all functionality required by the koans below. as a student of meta-programming your course will be guided by a guru whose wisdom and pithy sayings will assist you on your journey.
a successful student will eventually be able to do this
harp:~ > ruby metakoans.rb knowledge.rb
koan_1 has expanded your awareness
koan_2 has expanded your awareness
koan_3 has expanded your awareness
koan_4 has expanded your awareness
koan_5 has expanded your awareness
koan_6 has expanded your awareness
koan_7 has expanded your awareness
koan_8 has expanded your awareness
koan_9 has expanded your awareness
mountains are again merely mountains