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Add support for weak references to the function and method types.

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This commit is contained in:
Fred Drake 2001-03-23 04:19:27 +00:00
parent 6a1c87ddf9
commit db81e8ddf8
2 changed files with 13 additions and 3 deletions
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7
Objects/classobject.c
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@ -1805,6 +1805,7 @@ PyMethod_New(PyObject *func, PyObject *self, PyObject *class)
if (im == NULL)
return NULL;
}
im->im_weakreflist = NULL;
Py_INCREF(func);
im->im_func = func;
Py_XINCREF(self);
@ -1902,6 +1903,7 @@ instancemethod_getattro(register PyMethodObject *im, PyObject *name)
static void
instancemethod_dealloc(register PyMethodObject *im)
{
PyObject_ClearWeakRefs((PyObject *)im);
PyObject_GC_Fini(im);
Py_DECREF(im->im_func);
Py_XDECREF(im->im_self);
@ -2019,9 +2021,12 @@ PyTypeObject PyMethod_Type = {
(getattrofunc)instancemethod_getattro, /* tp_getattro */
(setattrofunc)instancemethod_setattro, /* tp_setattro */
0, /* tp_as_buffer */
Py_TPFLAGS_DEFAULT | Py_TPFLAGS_GC, /* tp_flags */
Py_TPFLAGS_DEFAULT | Py_TPFLAGS_GC | Py_TPFLAGS_HAVE_WEAKREFS,
0, /* tp_doc */
(traverseproc)instancemethod_traverse, /* tp_traverse */
0, /* tp_clear */
0, /* tp_richcompare */
offsetof(PyMethodObject, im_weakreflist) /* tp_weaklistoffset */
};
/* Clear out the free list */