1 files changed, 46 insertions, 0 deletions
diff --git a/vendor/Twisted-10.0.0/twisted/python/finalize.py b/vendor/Twisted-10.0.0/twisted/python/finalize.py
new file mode 100644
index 0000000000..8b99bf6aa8
--- /dev/null
+++ b/vendor/Twisted-10.0.0/twisted/python/finalize.py
@@ -0,0 +1,46 @@
+
+"""
+A module for externalized finalizers.
+"""
+
+import weakref
+
+garbageKey = 0
+
+def callbackFactory(num, fins):
+    def _cb(w):
+        del refs[num]
+        for fx in fins:
+            fx()
+    return _cb
+
+refs = {}
+
+def register(inst):
+    global garbageKey
+    garbageKey += 1
+    r = weakref.ref(inst, callbackFactory(garbageKey, inst.__finalizers__()))
+    refs[garbageKey] = r
+
+if __name__ == '__main__':
+    def fin():
+        print 'I am _so_ dead.'
+
+    class Finalizeable:
+        """
+        An un-sucky __del__
+        """
+
+        def __finalizers__(self):
+            """
+            I'm going away.
+            """
+            return [fin]
+
+    f = Finalizeable()
+    f.f2 = f
+    register(f)
+    del f
+    import gc
+    gc.collect()
+    print 'deled'