Class arbitrary instance attributes

gistfile1.rb

  def method_missing(sym, *args)
    name = sym.to_s
    if name[-1,1] == '='
      instance_variable_set( "@#{name[0, name.size - 1]}", *args)
    else
      instance_variable_get("@#{name}")
    end
  end

Use in a class to allow for arbitrarily setting and getting instance variables.