//     Copyright 2018, Kay Hayen, mailto:kay.hayen@gmail.com
//
//     Part of "Nuitka", an optimizing Python compiler that is compatible and
//     integrates with CPython, but also works on its own.
//
//     Licensed under the Apache License, Version 2.0 (the "License");
//     you may not use this file except in compliance with the License.
//     You may obtain a copy of the License at
//
//        http://www.apache.org/licenses/LICENSE-2.0
//
//     Unless required by applicable law or agreed to in writing, software
//     distributed under the License is distributed on an "AS IS" BASIS,
//     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
//     See the License for the specific language governing permissions and
//     limitations under the License.
//
#ifndef __NUITKA_HELPER_SEQUENCES_H__
#define __NUITKA_HELPER_SEQUENCES_H__

// TODO: Provide enhanced form of PySequence_Contains with less overhead.

NUITKA_MAY_BE_UNUSED static bool SEQUENCE_SETITEM(PyObject *sequence, Py_ssize_t index, PyObject *value) {
    CHECK_OBJECT(sequence);
    CHECK_OBJECT(value);

    PySequenceMethods *sequence_methods = Py_TYPE(sequence)->tp_as_sequence;

    if (sequence_methods != NULL && sequence_methods->sq_ass_item) {
        if (index < 0) {
            if (sequence_methods->sq_length) {
                Py_ssize_t length = (*sequence_methods->sq_length)(sequence);

                if (length < 0) {
                    return false;
                }

                index += length;
            }
        }

        int res = sequence_methods->sq_ass_item(sequence, index, value);

        if (unlikely(res == -1)) {
            return false;
        }

        return true;
    } else {
        PyErr_Format(PyExc_TypeError, "'%s' object does not support item assignment", Py_TYPE(sequence)->tp_name);

        return false;
    }
}

#endif
