Generic Function: RUCKSACK-MAYBE-INDEX-CHANGED-SLOT

Documentation

This function is called after a slot has changed. OLD-VALUE is the slot's value before the change, NEW-VALUE is the current value. OLD-BOUNDP is true iff the slot was bound before the change, NEW-BOUNDP is true iff the slot is currently bound.

Source

(defgeneric rucksack-maybe-index-changed-slot (rucksack 
                                               class object slot
                                               old-value new-value
                                               old-boundp new-boundp)
  (:documentation
 "This function is called after a slot has changed.  OLD-VALUE is the
slot's value before the change, NEW-VALUE is the current value.
OLD-BOUNDP is true iff the slot was bound before the change,
NEW-BOUNDP is true iff the slot is currently bound."))