constantize

# File activesupport/lib/active_support/inflector.rb, line 144
  def constantize(camel_cased_word)
    raise NameError, "#{camel_cased_word.inspect} is not a valid constant name!" unless
      camel_cased_word.split("::").all? { |part| /^[A-Z]\w*$/ =~ part }
    
    camel_cased_word = "::#{camel_cased_word}" unless camel_cased_word[0, 2] == '::'
    Object.module_eval(camel_cased_word, __FILE__, __LINE__)
  end