Calling (
has the effect that when the specified object is being garbage-collected,
EXT:FINALIZE object function)( will be executed.FUNCALL function object)
Calling (
has a similar effect, but only as long as the EXT:FINALIZE object function guardian)guardian has not been garbage-collected:
when object is being garbage-collected, ( will be executed.
If the FUNCALL function object
guardian)guardian is garbage-collected before object is, nothing happens.
The time when "the object is being garbage-collected" is not
defined deterministically. (Actually, it might possibly never occur.)
It denotes a moment at which no references to object exist from other
Lisp objects. When the function is called, object (and, possibly,
guardian) enter the "arena of live Lisp objects" again.
No finalization request will be executed more than once.
| These notes document CLISP version 2.49 | Last modified: 2010年07月07日 |