Function Str_like_sha256

python/stringzilla.c:1573–1603

    "  TypeError: If the argument is not string-like or incorrect number of arguments is provided.";

static PyObject *Str_like_sha256(PyObject *self, PyObject *const *args, Py_ssize_t positional_args_count,
                                 PyObject *args_names_tuple) {
    // Check minimum arguments
    int is_member = self != NULL && PyObject_TypeCheck(self, &StrType);
    if (positional_args_count < !is_member || positional_args_count > !is_member + 1 || args_names_tuple) {
        PyErr_SetString(PyExc_TypeError, "sha256() expects exactly one positional argument");
        return NULL;
    }

    PyObject *text_obj = is_member ? self : args[0];
    sz_string_view_t text;

    // Validate and convert `text`
    if (!sz_py_export_string_like(text_obj, &text.start, &text.length)) {
        wrap_current_exception("The text argument must be string-like");
        return NULL;
    }

    // Initialize SHA256 state
    sz_sha256_state_t state;
    sz_sha256_state_init(&state);

    // Update with data
    sz_sha256_state_update(&state, text.start, text.length);

    // Compute final digest
    sz_u8_t digest[32];
    sz_sha256_state_digest(&state, digest);

    return PyBytes_FromStringAndSize((char const *)digest, 32);
}

static char const doc_hmac_sha256[] = //
    "Compute HMAC-SHA256 authentication code.\n"