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bpo-40217: Ensure Py_VISIT(Py_TYPE(self)) is always called for PyType_FromSpec types (reverts GH-19414) (GH-20264)

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Heap types now always visit the type in tp_traverse. See added docs for details.

This reverts commit 0169d3003b.

Automerge-Triggered-By: @encukou
This commit is contained in:
Pablo Galindo 2020-05-27 10:03:38 +01:00 • committed by GitHub
parent 404b23b85b
commit 1cf15af9a6
12 changed files with 87 additions and 94 deletions
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3
Objects/structseq.c
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@ -70,6 +70,9 @@ PyStructSequence_GetItem(PyObject* op, Py_ssize_t i)
static int
structseq_traverse(PyStructSequence *obj, visitproc visit, void *arg)
{
if (Py_TYPE(obj)->tp_flags & Py_TPFLAGS_HEAPTYPE) {
Py_VISIT(Py_TYPE(obj));
}
Py_ssize_t i, size;
size = REAL_SIZE(obj);
for (i = 0; i < size; ++i) {