gistfile1.rb

require 'rubygems'
require 'yard'
include YARD

def traverse(node = Registry.root, indent = 0)
  # Print contents of node
  if node == Registry.root
    puts "root"
  else
    if CodeObjects::MethodObject === node
      name = node.name(true) # get method name with prefix
    else
      name = node.name
    end
    puts ("|   " * (indent-1)) + "|-- " + name.to_s
  end
  
  # Traverse children if there are any
  if node.respond_to?(:children)
    node.children.each {|child| traverse(child, indent + 1) }
  end
end

Registry.load
traverse