bpo-37337: Add _PyObject_VectorcallMethod() (GH-14228)

1 files changed, 16 insertions, 0 deletions

diff --git a/Include/cpython/abstract.h b/Include/cpython/abstract.h
index 415f3e1..b4288e7 100644
--- a/Include/cpython/abstract.h
+++ b/Include/cpython/abstract.h
@@ -158,6 +158,10 @@ PyAPI_FUNC(PyObject *) _PyObject_Call_Prepend(
     PyObject *args,
     PyObject *kwargs);
 
+PyAPI_FUNC(PyObject *) _PyObject_VectorcallMethod(
+    PyObject *name, PyObject *const *args,
+    size_t nargsf, PyObject *kwnames);
+
 /* Like PyObject_CallMethod(), but expect a _Py_Identifier*
    as the method name. */
 PyAPI_FUNC(PyObject *) _PyObject_CallMethodId(PyObject *obj,
@@ -174,6 +178,18 @@ PyAPI_FUNC(PyObject *) _PyObject_CallMethodIdObjArgs(
     struct _Py_Identifier *name,
     ...);
 
+static inline PyObject *
+_PyObject_VectorcallMethodId(
+    _Py_Identifier *name, PyObject *const *args,
+    size_t nargsf, PyObject *kwnames)
+{
+    PyObject *oname = _PyUnicode_FromId(name); /* borrowed */
+    if (!oname) {
+        return NULL;
+    }
+    return _PyObject_VectorcallMethod(oname, args, nargsf, kwnames);
+}
+
 PyAPI_FUNC(int) _PyObject_HasLen(PyObject *o);
 
 /* Guess the size of object 'o' using len(o) or o.__length_hint__().