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fix error handling of PyNumber_InPlaceOr #6000

This commit is contained in:
Benjamin Peterson 2009-05-12 20:39:25 +00:00
parent ff0e5002ba
commit 57512588fa
1 changed files with 26 additions and 16 deletions
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42
Python/symtable.c
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@ -658,6 +658,7 @@ analyze_block(PySTEntryObject *ste, PyObject *bound, PyObject *free,
{
PyObject *name, *v, *local = NULL, *scopes = NULL, *newbound = NULL;
PyObject *newglobal = NULL, *newfree = NULL, *allfree = NULL;
PyObject *temp;
int i, success = 0;
Py_ssize_t pos = 0;
@ -696,14 +697,16 @@ analyze_block(PySTEntryObject *ste, PyObject *bound, PyObject *free,
*/
if (ste->ste_type == ClassBlock) {
/* Pass down known globals */
if (!PyNumber_InPlaceOr(newglobal, global))
temp = PyNumber_InPlaceOr(newglobal, global);
if (!temp)
goto error;
Py_DECREF(newglobal);
Py_DECREF(temp);
/* Pass down previously bound symbols */
if (bound) {
if (!PyNumber_InPlaceOr(newbound, bound))
temp = PyNumber_InPlaceOr(newbound, bound);
if (!temp)
goto error;
Py_DECREF(newbound);
Py_DECREF(temp);
}
}
@ -718,20 +721,23 @@ analyze_block(PySTEntryObject *ste, PyObject *bound, PyObject *free,
if (ste->ste_type != ClassBlock) {
/* Add function locals to bound set */
if (ste->ste_type == FunctionBlock) {
if (!PyNumber_InPlaceOr(newbound, local))
temp = PyNumber_InPlaceOr(newbound, local);
if (!temp)
goto error;
Py_DECREF(newbound);
Py_DECREF(temp);
}
/* Pass down previously bound symbols */
if (bound) {
if (!PyNumber_InPlaceOr(newbound, bound))
temp = PyNumber_InPlaceOr(newbound, bound);
if (!temp)
goto error;
Py_DECREF(newbound);
Py_DECREF(temp);
}
/* Pass down known globals */
if (!PyNumber_InPlaceOr(newglobal, global))
temp = PyNumber_InPlaceOr(newglobal, global);
if (!temp)
goto error;
Py_DECREF(newglobal);
Py_DECREF(temp);
}
else {
/* Special-case __class__ */
@ -764,9 +770,10 @@ analyze_block(PySTEntryObject *ste, PyObject *bound, PyObject *free,
ste->ste_child_free = 1;
}
if (PyNumber_InPlaceOr(newfree, allfree) < 0)
temp = PyNumber_InPlaceOr(newfree, allfree);
if (!temp)
goto error;
Py_DECREF(newfree);
Py_DECREF(temp);
/* Check if any local variables must be converted to cell variables */
if (ste->ste_type == FunctionBlock && !analyze_cells(scopes, newfree,
@ -782,9 +789,10 @@ analyze_block(PySTEntryObject *ste, PyObject *bound, PyObject *free,
if (!check_unoptimized(ste))
goto error;
if (!PyNumber_InPlaceOr(free, newfree))
temp = PyNumber_InPlaceOr(free, newfree);
if (!temp)
goto error;
Py_DECREF(free);
Py_DECREF(temp);
success = 1;
error:
Py_XDECREF(scopes);
@ -803,6 +811,7 @@ analyze_child_block(PySTEntryObject *entry, PyObject *bound, PyObject *free,
PyObject *global, PyObject* child_free)
{
PyObject *temp_bound = NULL, *temp_global = NULL, *temp_free = NULL;
PyObject *temp;
/* Copy the bound and global dictionaries.
@ -823,9 +832,10 @@ analyze_child_block(PySTEntryObject *entry, PyObject *bound, PyObject *free,
if (!analyze_block(entry, temp_bound, temp_free, temp_global))
goto error;
if (PyNumber_InPlaceOr(child_free, temp_free) < 0)
temp = PyNumber_InPlaceOr(child_free, temp_free);
if (!temp)
goto error;
Py_DECREF(child_free);
Py_DECREF(temp);
Py_DECREF(temp_bound);
Py_DECREF(temp_free);
Py_DECREF(temp_global);