unbound-slot, cell-error, error, serious-condition, condition, t

The object having the unbound slot is initialized by :instance to make-condition, and is accessed by the function unbound-slot-instance.

The name of the cell (see cell-error) is the name of the slot.

• Function CELL-ERROR-NAME
• Function UNBOUND-SLOT-INSTANCE
• {\secref\ConditionSystemConcepts}

\issue{UNDEFINED-VARIABLES-AND-FUNCTIONS:COMPROMISE}