[Python-checkins] cpython (3.5): Fix resize_compact()

[victor.stinner]

https://hg.python.org/cpython/rev/8de6f19afc86
changeset:   100074:8de6f19afc86
branch:      3.5
parent:      100072:ce3d47eaeb21
user:        Victor Stinner <victor.stinner at gmail.com>
date:        Wed Jan 27 16:56:53 2016 +0100
summary:
  Fix resize_compact()

Issue #26217: resize_compact() must set wstr_length to 0 after freeing the wstr
string. Otherwise, an assertion fails in _PyUnicode_CheckConsistency().

files:
  Objects/unicodeobject.c |  2 ++
  1 files changed, 2 insertions(+), 0 deletions(-)


diff --git a/Objects/unicodeobject.c b/Objects/unicodeobject.c
--- a/Objects/unicodeobject.c
+++ b/Objects/unicodeobject.c
@@ -748,6 +748,8 @@
     else if (_PyUnicode_HAS_WSTR_MEMORY(unicode)) {
         PyObject_DEL(_PyUnicode_WSTR(unicode));
         _PyUnicode_WSTR(unicode) = NULL;
+        if (!PyUnicode_IS_ASCII(unicode))
+            _PyUnicode_WSTR_LENGTH(unicode) = 0;
     }
 #ifdef Py_DEBUG
     unicode_fill_invalid(unicode, old_length);

-- 
Repository URL: https://hg.python.org/cpython