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-rw-r--r--Python/compile.c25
1 files changed, 23 insertions, 2 deletions
diff --git a/Python/compile.c b/Python/compile.c
index 97ab99c..453aae3 100644
--- a/Python/compile.c
+++ b/Python/compile.c
@@ -984,11 +984,32 @@ parsestrplus(n)
REQ(CHILD(n, 0), STRING);
if ((v = parsestr(STR(CHILD(n, 0)))) != NULL) {
/* String literal concatenation */
- for (i = 1; i < NCH(n) && v != NULL; i++) {
- PyString_ConcatAndDel(&v, parsestr(STR(CHILD(n, i))));
+ for (i = 1; i < NCH(n); i++) {
+ PyObject *s;
+ s = parsestr(STR(CHILD(n, i)));
+ if (s == NULL)
+ goto onError;
+ if (PyString_Check(v) && PyString_Check(s)) {
+ PyString_ConcatAndDel(&v, s);
+ if (v == NULL)
+ goto onError;
+ }
+ else {
+ PyObject *temp;
+ temp = PyUnicode_Concat(v, s);
+ Py_DECREF(s);
+ if (temp == NULL)
+ goto onError;
+ Py_DECREF(v);
+ v = temp;
+ }
}
}
return v;
+
+ onError:
+ Py_XDECREF(v);
+ return NULL;
}
static void