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bpo-36346: Make using the legacy Unicode C API optional (GH-21437)

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Add compile time option USE_UNICODE_WCHAR_CACHE. Setting it to 0
makes the interpreter not using the wchar_t cache and the legacy Unicode C API.
This commit is contained in:
Serhiy Storchaka 2020-07-10 23:26:06 +03:00 • committed by GitHub
parent 9650fe0197
commit 4c8f09d7ce
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GPG key ID: 4AEE18F83AFDEB23
17 changed files with 360 additions and 99 deletions
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12
Modules/_io/fileio.c
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@ -270,7 +270,14 @@ _io_FileIO___init___impl(fileio *self, PyObject *nameobj, const char *mode,
if (!PyUnicode_FSDecoder(nameobj, &stringobj)) {
return -1;
}
#if USE_UNICODE_WCHAR_CACHE
_Py_COMP_DIAG_PUSH
_Py_COMP_DIAG_IGNORE_DEPR_DECLS
widename = PyUnicode_AsUnicode(stringobj);
_Py_COMP_DIAG_POP
#else /* USE_UNICODE_WCHAR_CACHE */
widename = PyUnicode_AsWideCharString(stringobj, NULL);
#endif /* USE_UNICODE_WCHAR_CACHE */
if (widename == NULL)
return -1;
#else
@ -491,6 +498,11 @@ _io_FileIO___init___impl(fileio *self, PyObject *nameobj, const char *mode,
internal_close(self);
done:
#ifdef MS_WINDOWS
#if !USE_UNICODE_WCHAR_CACHE
PyMem_Free(widename);
#endif /* USE_UNICODE_WCHAR_CACHE */
#endif
Py_CLEAR(stringobj);
return ret;
}