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Make the various iterators' "setstate" sliently and consistently clip the

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index.  This avoids the possibility of setting an iterator to an invalid
state.
This commit is contained in:
Kristján Valur Jónsson 2014-03-05 13:47:57 +00:00
parent 4ca688edeb
commit 25dded041f
8 changed files with 66 additions and 15 deletions
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10
Objects/bytearrayobject.c
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@ -3043,9 +3043,13 @@ bytearrayiter_setstate(bytesiterobject *it, PyObject *state)
Py_ssize_t index = PyLong_AsSsize_t(state);
if (index == -1 && PyErr_Occurred())
return NULL;
if (index < 0)
index = 0;
it->it_index = index;
if (it->it_seq != NULL) {
if (index < 0)
index = 0;
else if (index > PyByteArray_GET_SIZE(it->it_seq))
index = PyByteArray_GET_SIZE(it->it_seq); /* iterator exhausted */
it->it_index = index;
}
Py_RETURN_NONE;
}