This is a Ruby tree! It shows every object from the Ruby Programming Language in a tree format.


        # Ractor::MovedError < Ractor::Error

(from ruby core)
Raised on an attempt to access an object which was moved in Ractor#send
or Ractor.yield.

    r = { sleep }

    ary = [1, 2, 3]
    r.send(ary, move: true)
    # Ractor::MovedError (can not send any methods to a moved object)


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.