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SF 560736. Optimize list iteration by filling the tp_iter slot.

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This commit is contained in:
Raymond Hettinger 2002-05-31 21:40:38 +00:00
parent 59b2a74c75
commit 14bd6de0ec
3 changed files with 126 additions and 18 deletions
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24
Objects/iterobject.c
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@ -68,25 +68,15 @@ iter_iternext(PyObject *iterator)
it = (seqiterobject *)iterator;
seq = it->it_seq;
if (PyList_CheckExact(seq)) {
PyObject *item;
if (it->it_index >= PyList_GET_SIZE(seq)) {
return NULL;
}
item = PyList_GET_ITEM(seq, it->it_index);
it->it_index++;
Py_INCREF(item);
return item;
}
if (PyTuple_CheckExact(seq)) {
PyObject *item;
if (it->it_index >= PyTuple_GET_SIZE(seq)) {
return NULL;
if (it->it_index < PyTuple_GET_SIZE(seq)) {
PyObject *item;
item = PyTuple_GET_ITEM(seq, it->it_index);
it->it_index++;
Py_INCREF(item);
return item;
}
item = PyTuple_GET_ITEM(seq, it->it_index);
it->it_index++;
Py_INCREF(item);
return item;
return NULL;
}
else {
PyObject *result = PySequence_ITEM(seq, it->it_index);