In the original code flow, the html rendering is done directly in templates.

This allows us to access the rendered version anywhere, and to cache it.

Note: this is an addition, not present in the original class.

Cache the TOC version (usefull for the file title for instance).

Note: this is an addition, not present in the original class.

Make this object interface compatible with Base CodeObjects.

Reference

• https://github.com/lsegal/yard/blob/master/lib/yard/code_objects/extra_file_object.rb#L18