module ActiveSupport::Dependencies

def to_constant_name(desc) #:nodoc:

:nodoc:
A module, class, symbol, or string may be provided.
Convert the provided const desc to a qualified constant name (as a string).

def to_constant_name(desc) #:nodoc:
  case desc
  when String then desc.sub(/^::/, "")
  when Symbol then desc.to_s
  when Module
    real_mod_name(desc) ||
      raise(ArgumentError, "Anonymous modules have no name to be referenced by")
  else raise TypeError, "Not a valid constant descriptor: #{desc.inspect}"
  end
end