This is a Ruby tree! It shows every object from the Ruby Programming Language in a tree format.
# IPAddr::AddressFamilyError < IPAddr::Error (from ruby core) --- Raised when the address family is invalid such as an address with an unsupported family, an address with an inconsistent family, or an address who's family cannot be determined. ---
This is MURDOC! A Ruby documentation browser inspired by Smalltalk-80. It allows you to learn about Ruby by browsing through its class hierarchies, and see any of its methods.