This is a Ruby tree! It shows every object from the Ruby Programming Language in a tree format.
# Zlib::StreamError < Zlib::Error (from ruby core) --- Subclass of Zlib::Error When zlib returns a Z_STREAM_ERROR, usually if the stream state was inconsistent. ---
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.