class RDoc::RubygemsHook

This class is referenced by RubyGems to create documents. All implementations are moved to the above RubyGemsHook.

This class does nothing when this RDoc is installed as a normal gem or a bundled gem.

This class does generate/remove documents for compatibility when this RDoc is installed as a default gem.

We can remove this when all maintained RubyGems remove rubygems/rdoc.rb.