Marius Vollmer <[EMAIL PROTECTED]> writes: > > There is no guarantee about the order in which objects are returned > from a guardian. If you want to impose an order on finalization > actions, for example, you can do that by keeping objects alive in > some global data structure until they are no longer needed for > finalizing other objects.
Perhaps an example here, it's hard to tell what you mean otherwise. > Being an element in a weak vector, a key in a hash table with weak > keys, or a value in a hash table with weak value does not prevent > an object from being returned by a guardian. But as long as an > object can be returned from a guardian will it not be removed from > such a weak vector or hash table. In other words, a weak link > does not prevent an object from being considered collectable, but > being inside a guardian prevents a weak link from being broken. > > A key in a weak key hash table can be though of as having a strong > reference to its associated value as long as the key is accessible. > Consequently, when the key only accessible from within a guardian, > the reference from the key to the value is also considered to be > coming from within a guardian. Thus, if there is no other > reference to the value, it is eligible to be returned from a > guardian. Some rewording would make this clearer. _______________________________________________ Guile-user mailing list Guile-user@gnu.org http://lists.gnu.org/mailman/listinfo/guile-user
