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CLN: Get rid of PyArray_GetCastFunc #56114

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Merged
merged 6 commits into from
Nov 26, 2023
Merged

CLN: Get rid of PyArray_GetCastFunc #56114

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29df456
CLN: Get rid of PyArray_GetCastFunc
lithomas1 Nov 22, 2023
5b38e05
remove old code
lithomas1 Nov 22, 2023
553d6a8
simplify as per suggestion
lithomas1 Nov 22, 2023
2f3b4fa
delete dead code
lithomas1 Nov 22, 2023
740573d
simplify again
lithomas1 Nov 22, 2023
27c120d
Update objToJSON.c
lithomas1 Nov 26, 2023
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18 changes: 3 additions & 15 deletions pandas/_libs/src/vendored/ujson/python/objToJSON.c
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Original file line number Diff line number Diff line change
Expand Up @@ -1280,13 +1280,7 @@ char **NpyArr_encodeLabels(PyArrayObject *labels, PyObjectEncoder *enc,
NPY_DATETIMEUNIT dateUnit = NPY_FR_ns;
if (PyTypeNum_ISDATETIME(type_num)) {
is_datetimelike = 1;
PyArray_VectorUnaryFunc *castfunc =
PyArray_GetCastFunc(PyArray_DescrFromType(type_num), NPY_INT64);
if (!castfunc) {
PyErr_Format(PyExc_ValueError, "Cannot cast numpy dtype %d to long",
enc->npyType);
}
castfunc(dataptr, &i8date, 1, NULL, NULL);
i8date = *(npy_int64 *)dataptr;
dateUnit = get_datetime_metadata_from_dtype(dtype).base;
} else if (PyDate_Check(item) || PyDelta_Check(item)) {
is_datetimelike = 1;
Expand Down Expand Up @@ -1425,13 +1419,8 @@ void Object_beginTypeContext(JSOBJ _obj, JSONTypeContext *tc) {

if (PyTypeNum_ISDATETIME(enc->npyType)) {
int64_t longVal;
PyArray_VectorUnaryFunc *castfunc =
PyArray_GetCastFunc(PyArray_DescrFromType(enc->npyType), NPY_INT64);
if (!castfunc) {
PyErr_Format(PyExc_ValueError, "Cannot cast numpy dtype %d to long",
enc->npyType);
}
castfunc(enc->npyValue, &longVal, 1, NULL, NULL);

longVal = *(npy_int64 *)enc->npyValue;
if (longVal == get_nat()) {
tc->type = JT_NULL;
} else {
Expand Down Expand Up @@ -1532,7 +1521,6 @@ void Object_beginTypeContext(JSOBJ _obj, JSONTypeContext *tc) {

PyArray_Descr *outcode = PyArray_DescrFromType(NPY_INT64);
PyArray_CastScalarToCtype(obj, &longVal, outcode);
Py_DECREF(outcode);
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@mroeschke mroeschke Nov 22, 2023

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Just confirming this was also an intentional cleanup?
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@seberg seberg Nov 22, 2023

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No, this is an accident and shouldn't be included.
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@lithomas1 lithomas1 Nov 26, 2023

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Thanks for the catch.

I wonder if we're leaking references to PyArray_Descr elsewhere than.

The numpy docs don't seem too clear about whether we're borrowing references or owning it.
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@seberg seberg Nov 26, 2023

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Ah, yeah the deleted code here used to leak them... One point is that array creation functions steal them, though.

if (enc->datetimeIso) {
GET_TC(tc)->longValue = longVal;
Expand Down