Support for the Ruby 2.4 series has ended. See here for reference.
A normal class, neither singleton nor anonymous
The ancestors of this class including modules. Unlike Module#ancestors, this class is not included in the result. The result will contain both RDoc::ClassModules and Strings.
# File rdoc/normal_class.rb, line 12 def ancestors if String === superclass then super << superclass elsif superclass then ancestors = super ancestors << superclass ancestors.concat superclass.ancestors else super end end