bpo-44114: Fix dictkeys_reversed and dictvalues_reversed function signatures (GH...

These are passed and called as PyCFunction, however they are defined here without the (ignored) args parameter.

This works fine in some C compilers, but fails in webassembly or anything else that has strict function pointer call type checking.
(cherry picked from commit ab383eb6f03896b0ef6634ee3d776344fcb9e5b8)

Co-authored-by: Joe Marshall <joe.marshall@nottingham.ac.uk>
Co-authored-by: Joe Marshall <joe.marshall@nottingham.ac.uk>

diff --git a/Misc/NEWS.d/next/Core and Builtins/2021-05-12-14-26-16.bpo-44114.p-WfAE.rst b/Misc/NEWS.d/next/Core and Builtins/2021-05-12-14-26-16.bpo-44114.p-WfAE.rst
new file mode 100644 (file)
index 0000000..c50b159
--- /dev/null
+++ b/Misc/NEWS.d/next/Core and Builtins/2021-05-12-14-26-16.bpo-44114.p-WfAE.rst
@@ -0,0 +1 @@
+Fix incorrect dictkeys_reversed and dictitems_reversed function signatures in C code, which broke webassembly builds.
\ No newline at end of file

diff --git a/Objects/dictobject.c b/Objects/dictobject.c
index 06412a9d87aaf8fc5a34db39e54de433cd6bf5d2..2ae122d3239c14ec3291624f652d4725ece33ad3 100644 (file)
--- a/Objects/dictobject.c
+++ b/Objects/dictobject.c
@@ -4615,7 +4615,7 @@ static PySequenceMethods dictitems_as_sequence = {
     (objobjproc)dictitems_contains,     /* sq_contains */
 };
 
-static PyObject* dictitems_reversed(_PyDictViewObject *dv);
+static PyObject* dictitems_reversed(_PyDictViewObject *dv, PyObject *Py_UNUSED(ignored));
 
 PyDoc_STRVAR(reversed_items_doc,
 "Return a reverse iterator over the dict items.");
@@ -4668,7 +4668,7 @@ dictitems_new(PyObject *dict, PyObject *Py_UNUSED(ignored))
 }
 
 static PyObject *
-dictitems_reversed(_PyDictViewObject *dv)
+dictitems_reversed(_PyDictViewObject *dv, PyObject *Py_UNUSED(ignored))
 {
     if (dv->dv_dict == NULL) {
         Py_RETURN_NONE;
@@ -4698,7 +4698,7 @@ static PySequenceMethods dictvalues_as_sequence = {
     (objobjproc)0,                      /* sq_contains */
 };
 
-static PyObject* dictvalues_reversed(_PyDictViewObject *dv);
+static PyObject* dictvalues_reversed(_PyDictViewObject *dv, PyObject *Py_UNUSED(ignored));
 
 PyDoc_STRVAR(reversed_values_doc,
 "Return a reverse iterator over the dict values.");
@@ -4749,7 +4749,7 @@ dictvalues_new(PyObject *dict, PyObject *Py_UNUSED(ignored))
 }
 
 static PyObject *
-dictvalues_reversed(_PyDictViewObject *dv)
+dictvalues_reversed(_PyDictViewObject *dv, PyObject *Py_UNUSED(ignored))
 {
     if (dv->dv_dict == NULL) {
         Py_RETURN_NONE;