This is a Ruby tree! It shows every object from the Ruby Programming Language in a tree format.
# Psych::Handler.empty (from ruby core) ### Implementation from Handler --- empty() --- Called when an empty event happens. (Which, as far as I can tell, is never).
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.