bpo-36346: Undeprecate private function _PyUnicode_AsUnicode(). (GH-21336)

Author: serhiy-storchaka

Include/cpython/unicodeobject.h

@@ -581,7 +581,7 @@ Py_DEPRECATED(3.3) PyAPI_FUNC(Py_UNICODE *) PyUnicode_AsUnicode(
 
 /* Similar to PyUnicode_AsUnicode(), but raises a ValueError if the string
    contains null characters. */
-Py_DEPRECATED(3.3) PyAPI_FUNC(const Py_UNICODE *) _PyUnicode_AsUnicode(
+PyAPI_FUNC(const Py_UNICODE *) _PyUnicode_AsUnicode(
     PyObject *unicode           /* Unicode object */
     );
 

Misc/NEWS.d/next/C API/2020-06-17-11-24-00.bpo-36346.fTMr3S.rst

@@ -1,4 +1,4 @@
 Mark ``Py_UNICODE_COPY``, ``Py_UNICODE_FILL``, ``PyUnicode_WSTR_LENGTH``,
-``PyUnicode_FromUnicode``, ``PyUnicode_AsUnicode``, ``_PyUnicode_AsUnicode``,
+``PyUnicode_FromUnicode``, ``PyUnicode_AsUnicode``,
 and ``PyUnicode_AsUnicodeAndSize`` as deprecated in C. Remove ``Py_UNICODE_MATCH``
 which was deprecated and broken since Python 3.3.

Modules/clinic/posixmodule.c.h

@@ -3310,14 +3310,11 @@ _PyUnicode_WideCharString_Converter(PyObject *obj, void *ptr)
     }
     if (PyUnicode_Check(obj)) {
 #if USE_UNICODE_WCHAR_CACHE
-_Py_COMP_DIAG_PUSH
-_Py_COMP_DIAG_IGNORE_DEPR_DECLS
         *p = (wchar_t *)_PyUnicode_AsUnicode(obj);
         if (*p == NULL) {
             return 0;
         }
         return 1;
-_Py_COMP_DIAG_POP
 #else /* USE_UNICODE_WCHAR_CACHE */
         *p = PyUnicode_AsWideCharString(obj, NULL);
         if (*p == NULL) {
@@ -3349,14 +3346,11 @@ _PyUnicode_WideCharString_Opt_Converter(PyObject *obj, void *ptr)
     }
     if (PyUnicode_Check(obj)) {
 #if USE_UNICODE_WCHAR_CACHE
-_Py_COMP_DIAG_PUSH
-_Py_COMP_DIAG_IGNORE_DEPR_DECLS
         *p = (wchar_t *)_PyUnicode_AsUnicode(obj);
         if (*p == NULL) {
             return 0;
         }
         return 1;
-_Py_COMP_DIAG_POP
 #else /* USE_UNICODE_WCHAR_CACHE */
         *p = PyUnicode_AsWideCharString(obj, NULL);
         if (*p == NULL) {

Objects/unicodeobject.c

@@ -758,10 +758,7 @@ _msi_SummaryInformation_SetProperty_impl(msiobj *self, int field,
 
     if (PyUnicode_Check(data)) {
 #if USE_UNICODE_WCHAR_CACHE
-_Py_COMP_DIAG_PUSH
-_Py_COMP_DIAG_IGNORE_DEPR_DECLS
         const WCHAR *value = _PyUnicode_AsUnicode(data);
-_Py_COMP_DIAG_POP
 #else /* USE_UNICODE_WCHAR_CACHE */
         WCHAR *value = PyUnicode_AsWideCharString(data, NULL);
 #endif /* USE_UNICODE_WCHAR_CACHE */

PC/_msi.c

@@ -3414,10 +3414,7 @@ def parse_arg(self, argname, argnum):
                         goto exit;
                     }}}}
                     #if USE_UNICODE_WCHAR_CACHE
-                    _Py_COMP_DIAG_PUSH
-                    _Py_COMP_DIAG_IGNORE_DEPR_DECLS
                     {paramname} = _PyUnicode_AsUnicode({argname});
-                    _Py_COMP_DIAG_POP
                     #else /* USE_UNICODE_WCHAR_CACHE */
                     {paramname} = PyUnicode_AsWideCharString({argname}, NULL);
                     #endif /* USE_UNICODE_WCHAR_CACHE */
@@ -3432,10 +3429,7 @@ def parse_arg(self, argname, argnum):
                     }}}}
                     else if (PyUnicode_Check({argname})) {{{{
                         #if USE_UNICODE_WCHAR_CACHE
-                        _Py_COMP_DIAG_PUSH
-                        _Py_COMP_DIAG_IGNORE_DEPR_DECLS
                         {paramname} = _PyUnicode_AsUnicode({argname});
-                        _Py_COMP_DIAG_POP
                         #else /* USE_UNICODE_WCHAR_CACHE */
                         {paramname} = PyUnicode_AsWideCharString({argname}, NULL);
                         #endif /* USE_UNICODE_WCHAR_CACHE */