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bpo-43977: Use tp_flags for collection matching (GH-25723)

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* Add Py_TPFLAGS_SEQUENCE and Py_TPFLAGS_MAPPING, add to all relevant standard builtin classes.

* Set relevant flags on collections.abc.Sequence and Mapping.

* Use flags in MATCH_SEQUENCE and MATCH_MAPPING opcodes.

* Inherit Py_TPFLAGS_SEQUENCE and Py_TPFLAGS_MAPPING.

* Add NEWS

* Remove interpreter-state map_abc and seq_abc fields.
This commit is contained in:
Mark Shannon 2021-04-30 09:50:28 +01:00 • committed by GitHub
parent 2abbd8f2ad
commit 069e81ab3d
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GPG key ID: 4AEE18F83AFDEB23
16 changed files with 74 additions and 83 deletions
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Objects/dictobject.c
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@ -3553,7 +3553,7 @@ PyTypeObject PyDict_Type = {
0, /* tp_as_buffer */
Py_TPFLAGS_DEFAULT | Py_TPFLAGS_HAVE_GC |
Py_TPFLAGS_BASETYPE | Py_TPFLAGS_DICT_SUBCLASS |
_Py_TPFLAGS_MATCH_SELF, /* tp_flags */
_Py_TPFLAGS_MATCH_SELF | Py_TPFLAGS_MAPPING, /* tp_flags */
dictionary_doc, /* tp_doc */
dict_traverse, /* tp_traverse */
dict_tp_clear, /* tp_clear */