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Add weakref support generator-iterators.

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Part of fixing SF bug #591704.
This commit is contained in:
Fred Drake 2002-08-09 18:35:52 +00:00
parent f16c3dc81b
commit 72bc456403
1 changed files with 7 additions and 1 deletions
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8
Python/ceval.c
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@ -94,6 +94,9 @@ typedef struct {
/* True if generator is being executed. */ /* True if generator is being executed. */
int gi_running; int gi_running;
/* List of weak reference. */
PyObject *gi_weakreflist;
} genobject; } genobject;
static PyObject * static PyObject *
@ -106,6 +109,7 @@ gen_new(PyFrameObject *f)
} }
gen->gi_frame = f; gen->gi_frame = f;
gen->gi_running = 0; gen->gi_running = 0;
gen->gi_weakreflist = NULL;
_PyObject_GC_TRACK(gen); _PyObject_GC_TRACK(gen);
return (PyObject *)gen; return (PyObject *)gen;
} }
@ -120,6 +124,8 @@ static void
gen_dealloc(genobject *gen) gen_dealloc(genobject *gen)
{ {
_PyObject_GC_UNTRACK(gen); _PyObject_GC_UNTRACK(gen);
if (gen->gi_weakreflist != NULL)
PyObject_ClearWeakRefs((PyObject *) gen);
Py_DECREF(gen->gi_frame); Py_DECREF(gen->gi_frame);
PyObject_GC_Del(gen); PyObject_GC_Del(gen);
} }
@ -205,7 +211,7 @@ static PyTypeObject gentype = {
(traverseproc)gen_traverse, /* tp_traverse */ (traverseproc)gen_traverse, /* tp_traverse */
0, /* tp_clear */ 0, /* tp_clear */
0, /* tp_richcompare */ 0, /* tp_richcompare */
0, /* tp_weaklistoffset */ offsetof(genobject, gi_weakreflist), /* tp_weaklistoffset */
(getiterfunc)gen_getiter, /* tp_iter */ (getiterfunc)gen_getiter, /* tp_iter */
(iternextfunc)gen_iternext, /* tp_iternext */ (iternextfunc)gen_iternext, /* tp_iternext */
0, /* tp_methods */ 0, /* tp_methods */