Keyword

Default value: (when (> *delivery-level* 0) :delete)

The value is one of:

nil

Do not delete any condition class. This is the default at delivery level 0.

:delete

Delete unwanted conditions. If an error for a deleted condition is signaled, it is signalled as a simple error condition, with the arguments in the format-arguments slot. This is the default at delivery level > 0.

:redirect

Redirect unwanted conditions to the first parent in their hierachy which is not deleted.

See Deleting of condition classes.