Type:
Module
The ObjectSpace module contains a number of routines that interact with the garbage collection facility and allow you to traverse all living objects with an iterator.
ObjectSpace also provides support for object finalizers, procs that will be called when a specific object is about to be destroyed by garbage collection.
1 2 3 4 5 6 7 8 9 | include ObjectSpacea = "A"b = "B"c = "C"define_finalizer(a, proc {|id| puts "Finalizer one on #{id}" })define_finalizer(a, proc {|id| puts "Finalizer two on #{id}" })define_finalizer(b, proc {|id| puts "Finalizer three on #{id}" }) |
produces:
1 2 3 | Finalizer three on 537763470Finalizer one on 537763480Finalizer two on 537763480 |