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// Tuple primitive operations
//
// These are registered in mypyc.primitives.tuple_ops.
#include <Python.h>
#include "CPy.h"
PyObject *CPySequenceTuple_GetItem(PyObject *tuple, CPyTagged index) {
if (CPyTagged_CheckShort(index)) {
Py_ssize_t n = CPyTagged_ShortAsSsize_t(index);
Py_ssize_t size = PyTuple_GET_SIZE(tuple);
if (n >= 0) {
if (n >= size) {
PyErr_SetString(PyExc_IndexError, "tuple index out of range");
return NULL;
}
} else {
n += size;
if (n < 0) {
PyErr_SetString(PyExc_IndexError, "tuple index out of range");
return NULL;
}
}
PyObject *result = PyTuple_GET_ITEM(tuple, n);
Py_INCREF(result);
return result;
} else {
PyErr_SetString(PyExc_IndexError, "tuple index out of range");
return NULL;
}
}
PyObject *CPySequenceTuple_GetSlice(PyObject *obj, CPyTagged start, CPyTagged end) {
if (likely(PyTuple_CheckExact(obj)
&& CPyTagged_CheckShort(start) && CPyTagged_CheckShort(end))) {
Py_ssize_t startn = CPyTagged_ShortAsSsize_t(start);
Py_ssize_t endn = CPyTagged_ShortAsSsize_t(end);
if (startn < 0) {
startn += PyTuple_GET_SIZE(obj);
}
if (endn < 0) {
endn += PyTuple_GET_SIZE(obj);
}
return PyTuple_GetSlice(obj, startn, endn);
}
return CPyObject_GetSlice(obj, start, end);
}
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