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bpo-41428: Implementation for PEP 604 (GH-21515)

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See https://www.python.org/dev/peps/pep-0604/ for more information.

Co-authored-by: Pablo Galindo <pablogsal@gmail.com>
This commit is contained in:
Maggie Moss 2020-09-09 13:23:24 -07:00 • committed by GitHub
parent fa8c9e7010
commit 1b4552c5e8
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13 changed files with 693 additions and 17 deletions
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19
Objects/typeobject.c
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@ -6,6 +6,7 @@
#include "pycore_object.h"
#include "pycore_pyerrors.h"
#include "pycore_pystate.h" // _PyThreadState_GET()
#include "pycore_unionobject.h" // _Py_Union()
#include "frameobject.h"
#include "structmember.h" // PyMemberDef
@ -3753,6 +3754,21 @@ type_is_gc(PyTypeObject *type)
return type->tp_flags & Py_TPFLAGS_HEAPTYPE;
}
static PyObject *
type_or(PyTypeObject* self, PyObject* param) {
PyObject *tuple = PyTuple_Pack(2, self, param);
if (tuple == NULL) {
return NULL;
}
PyObject *new_union = _Py_Union(tuple);
Py_DECREF(tuple);
return new_union;
}
static PyNumberMethods type_as_number = {
.nb_or = (binaryfunc)type_or, // Add __or__ function
};
PyTypeObject PyType_Type = {
PyVarObject_HEAD_INIT(&PyType_Type, 0)
"type", /* tp_name */
@ -3764,7 +3780,7 @@ PyTypeObject PyType_Type = {
0, /* tp_setattr */
0, /* tp_as_async */
(reprfunc)type_repr, /* tp_repr */
0, /* tp_as_number */
&type_as_number, /* tp_as_number */
0, /* tp_as_sequence */
0, /* tp_as_mapping */
0, /* tp_hash */
@ -5598,7 +5614,6 @@ PyType_Ready(PyTypeObject *type)
add_subclass((PyTypeObject *)b, type) < 0)
goto error;
}
/* All done -- set the ready flag */
type->tp_flags =
(type->tp_flags & ~Py_TPFLAGS_READYING) | Py_TPFLAGS_READY;