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Issue #17137: When an Unicode string is resized, the internal wide character

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string (wstr) format is now cleared.
This commit is contained in:
Victor Stinner 2013-02-07 23:12:46 +01:00
parent 2efdc90b0f
commit bbbac2ec34
3 changed files with 22 additions and 0 deletions
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4
Objects/unicodeobject.c
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@ -702,6 +702,10 @@ resize_compact(PyObject *unicode, Py_ssize_t length)
if (!PyUnicode_IS_ASCII(unicode))
_PyUnicode_WSTR_LENGTH(unicode) = length;
}
else if (_PyUnicode_HAS_WSTR_MEMORY(unicode)) {
PyObject_DEL(_PyUnicode_WSTR(unicode));
_PyUnicode_WSTR(unicode) = NULL;
}
PyUnicode_WRITE(PyUnicode_KIND(unicode), PyUnicode_DATA(unicode),
length, 0);
assert(_PyUnicode_CheckConsistency(unicode, 0));