This is a Ruby tree! It shows every object from the Ruby Programming Language in a tree format.
# StringIO.each (from ruby core) --- strio.each(sep=$/, chomp: false) {|line| block } -> strio strio.each(limit, chomp: false) {|line| block } -> strio strio.each(sep, limit, chomp: false) {|line| block } -> strio strio.each(...) -> anEnumerator strio.each_line(sep=$/, chomp: false) {|line| block } -> strio strio.each_line(limit, chomp: false) {|line| block } -> strio strio.each_line(sep, limit, chomp: false) {|line| block } -> strio strio.each_line(...) -> anEnumerator --- See IO#each.
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.