make-instances-obsolete (class standard-class
)
make-instances-obsolete (class symbol
)
class—a class designator.
The function make-instances-obsolete
has the effect of
initiating the process of updating the instances of the
class. During updating, the generic function
update-instance-for-redefined-class
will be invoked.
The generic function make-instances-obsolete
is invoked
automatically by the system when defclass
has been used to
redefine an existing standard class and the set of local
slots accessible in an
instance is changed or the order of slots in storage is changed. It
can also be explicitly invoked by the user.
If the second of the above methods is selected, that
method invokes
make-instances-obsolete
on (find-class
class)
.
update-instance-for-redefined-class, Section 4.3.6 (Redefining Classes)