cext: fix Python 3.11 compatibility - Py_SIZE is not an lvalue (issue6610)
Py_SIZE was made a static inline function during Python 3.10 development, as
described on https://vstinner.github.io/c-api-opaque-structures.html .
e92ca942ddca updated the Mercurial code base accordingly, but somehow missed a
couple of cases introduced long time ago in a8c948ee3668.
The Python change was dropped for 3.10, but is coming back again in 3.11 .
--- a/mercurial/cext/pathencode.c Tue Nov 16 16:38:37 2021 +0100
+++ b/mercurial/cext/pathencode.c Thu Nov 18 12:31:37 2021 +0100
@@ -176,7 +176,7 @@
if (newobj) {
assert(PyBytes_Check(newobj));
- Py_SIZE(newobj)--;
+ Py_SET_SIZE(newobj, Py_SIZE(newobj) - 1);
_encodedir(PyBytes_AS_STRING(newobj), newlen, path, len + 1);
}
@@ -791,7 +791,7 @@
if (newobj) {
assert(PyBytes_Check(newobj));
- Py_SIZE(newobj)--;
+ Py_SET_SIZE(newobj, Py_SIZE(newobj) - 1);
basicencode(PyBytes_AS_STRING(newobj), newlen, path,
len + 1);
}