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bpo-40943: PY_SSIZE_T_CLEAN required for '#' formats (GH-20784)

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The PY_SSIZE_T_CLEAN macro must now be defined to use
PyArg_ParseTuple() and Py_BuildValue() "#" formats: "es#", "et#",
"s#", "u#", "y#", "z#", "U#" and "Z#". See the PEP 353.

Update _testcapi.test_buildvalue_issue38913().
This commit is contained in:
Victor Stinner 2020-06-19 11:45:31 +02:00 • committed by GitHub
parent 01ece63d42
commit 37bb289556
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GPG key ID: 4AEE18F83AFDEB23
6 changed files with 86 additions and 101 deletions
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33
Python/modsupport.c
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@ -283,6 +283,13 @@ do_mktuple(const char **p_format, va_list *p_va, char endchar, Py_ssize_t n, int
static PyObject *
do_mkvalue(const char **p_format, va_list *p_va, int flags)
{
#define ERROR_NEED_PY_SSIZE_T_CLEAN \
{ \
PyErr_SetString(PyExc_SystemError, \
"PY_SSIZE_T_CLEAN macro must be defined for '#' formats"); \
return NULL; \
}
for (;;) {
switch (*(*p_format)++) {
case '(':
@ -341,14 +348,12 @@ do_mkvalue(const char **p_format, va_list *p_va, int flags)
Py_ssize_t n;
if (**p_format == '#') {
++*p_format;
if (flags & FLAG_SIZE_T)
if (flags & FLAG_SIZE_T) {
n = va_arg(*p_va, Py_ssize_t);
}
else {
n = va_arg(*p_va, int);
if (PyErr_WarnEx(PyExc_DeprecationWarning,
"PY_SSIZE_T_CLEAN will be required for '#' formats", 1)) {
return NULL;
}
ERROR_NEED_PY_SSIZE_T_CLEAN;
}
}
else
@ -394,14 +399,12 @@ do_mkvalue(const char **p_format, va_list *p_va, int flags)
Py_ssize_t n;
if (**p_format == '#') {
++*p_format;
if (flags & FLAG_SIZE_T)
if (flags & FLAG_SIZE_T) {
n = va_arg(*p_va, Py_ssize_t);
}
else {
n = va_arg(*p_va, int);
if (PyErr_WarnEx(PyExc_DeprecationWarning,
"PY_SSIZE_T_CLEAN will be required for '#' formats", 1)) {
return NULL;
}
ERROR_NEED_PY_SSIZE_T_CLEAN;
}
}
else
@ -432,14 +435,12 @@ do_mkvalue(const char **p_format, va_list *p_va, int flags)
Py_ssize_t n;
if (**p_format == '#') {
++*p_format;
if (flags & FLAG_SIZE_T)
if (flags & FLAG_SIZE_T) {
n = va_arg(*p_va, Py_ssize_t);
}
else {
n = va_arg(*p_va, int);
if (PyErr_WarnEx(PyExc_DeprecationWarning,
"PY_SSIZE_T_CLEAN will be required for '#' formats", 1)) {
return NULL;
}
ERROR_NEED_PY_SSIZE_T_CLEAN;
}
}
else
@ -507,6 +508,8 @@ do_mkvalue(const char **p_format, va_list *p_va, int flags)
}
}
#undef ERROR_NEED_PY_SSIZE_T_CLEAN
}