Module renaming methods dynamically

dangerous.rb

module Hey
  def hi
    puts "hi"
  end
  
  def sup &block
    block.call
  end
end

class Dude
  include Hey
end


OLD_METHODS = Hey.instance_methods

module Hey
  empty_class = Class.new {
    include Hey
  }.new
  OLD_METHODS.each do |method|
    old_method = empty_class.method(method)
    define_method( "new_#{method}") do |*args, &block|
      old_method.call(*args, &block)
    end
    remove_method method
  end
end

OLD_METHODS.each do |method|
  begin
    Dude.new.send(method)
  rescue
    puts "no method #{method}"
  end
end

Dude.new.new_hi

Dude.new.new_sup do
  puts "here"
end