The principal predicates new/2, send/[2-12] and get/[3-13] will destroy all argument- and answer- objects created during their execution except for the object created by new/2 and the object returned by get/[3-13].
An object created by new/2
with an integer (anonymous) object reference must either be attached to
another object, locked against PCE's garbage collector or destroyed
if it is created during the
initialisation of the application or in a loop that is passed
many times. Such objects will be automatically reclaimed if (1) the
object is created while handling a user-event after handling the event
is finished or (2) the object is created in the implementation of a
method on a user-defined class and the method terminates execution.
If is is not known whether or not the result of get/[3-13]
is a computed object the user should invoke `object
to this result when the result is no longer needed. This will free the
result if it was a computed (and no longer referenced) object and has no
effect otherwise. If the result of the get operation is known to be an
integer, no such message should be send.