snippet.rb

require 'yard'

class DefineMethodHandler < YARD::Handlers::Ruby::Base
  handles method_call(:define_method)
  process { register MethodObject.new(namespace, statement[1].jump(:ident)[0]) }
end

YARD.parse_string(<<-'eof')
  class Foo
    def self.something
      define_method(:foo) do
        blah
      end
    end
  end
eof

puts YARD::Registry.all(:method).find {|m| m.name == :foo }.source