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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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Modules/arraymodule.c
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@ -2848,7 +2848,8 @@ static PyType_Spec array_spec = {
.name = "array.array",
.basicsize = sizeof(arrayobject),
.flags = (Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE |
Py_TPFLAGS_IMMUTABLETYPE),
Py_TPFLAGS_IMMUTABLETYPE |
Py_TPFLAGS_SEQUENCE),
.slots = array_slots,
};