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Issue #14288: Serialization support for builtin iterators.

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This commit is contained in:
Kristján Valur Jónsson 2012-04-03 10:49:41 +00:00
parent 283b96b6bd
commit 31668b8f7a
28 changed files with 2190 additions and 104 deletions
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31
Objects/tupleobject.c
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@ -967,8 +967,39 @@ tupleiter_len(tupleiterobject *it)
PyDoc_STRVAR(length_hint_doc, "Private method returning an estimate of len(list(it)).");
static PyObject *
tupleiter_reduce(tupleiterobject *it)
{
if (it->it_seq)
return Py_BuildValue("N(O)l", _PyIter_GetBuiltin("iter"),
it->it_seq, it->it_index);
else
return Py_BuildValue("N(())", _PyIter_GetBuiltin("iter"));
}
static PyObject *
tupleiter_setstate(tupleiterobject *it, PyObject *state)
{
long index = PyLong_AsLong(state);
if (index == -1 && PyErr_Occurred())
return NULL;
if (it->it_seq != NULL) {
if (index < 0)
index = 0;
else if (it->it_seq != NULL && index > PyTuple_GET_SIZE(it->it_seq))
index = PyTuple_GET_SIZE(it->it_seq);
it->it_index = index;
}
Py_RETURN_NONE;
}
PyDoc_STRVAR(reduce_doc, "Return state information for pickling.");
PyDoc_STRVAR(setstate_doc, "Set state information for unpickling.");
static PyMethodDef tupleiter_methods[] = {
{"__length_hint__", (PyCFunction)tupleiter_len, METH_NOARGS, length_hint_doc},
{"__reduce__", (PyCFunction)tupleiter_reduce, METH_NOARGS, reduce_doc},
{"__setstate__", (PyCFunction)tupleiter_setstate, METH_O, setstate_doc},
{NULL, NULL} /* sentinel */
};