ri > ActiveSupport::DescendantsTracker

= ActiveSupport::DescendantsTracker

(from /home/chedong/.local/share/rdoc)
------------------------------------------------------------------------
This module provides an internal implementation to track descendants
which is faster than iterating through ObjectSpace.
------------------------------------------------------------------------
= Class methods:

  clear
  descendants
  direct_descendants
  store_inherited
  subclasses

= Instance methods:

  descendants
  direct_descendants
  inherited
  subclasses