Spell: Refinement Wrapper

refinement_wrapper.rb

# =========================
# Spell: Refinement Wrapper
# =========================

# Call an unrefined method from its refinement.

module StringRefinement
  refine String do
    def reverse
      "x#{super}x"
    end
  end
end

using StringRefinement
"abc".reverse # => "xcbax"

# For more information: http://www.pragprog.com/titles/ppmetr/metaprogramming-ruby