Breaks to the debugger when an instance of a class is accessed. Note that this function is deprecated.
break-on-access instance &key read write slot-names when process trace-output entrycond eval-before before backtrace => t
A CLOS instance.
The keyword arguments control which type of access cause a break and are interpreted as described for trace-on-access.
A useful debugging function which causes access to
instance
to break to the debugger. Accesses include calls to
slot-value
and also accessor functions defined by the class of
instance
. Other instances of the same class are unaffected.
You can remove the break by calling unbreak-on-access.
A common use of this function is to find where a slot is being changed in a complex program.
Note: this function is deprecated. You should now call trace-on-access with
:break t
instead.