Function byteSumAPI

javascript/lib.c:793–815

}

napi_value byteSumAPI(napi_env env, napi_callback_info info) {
    size_t argc = 1;
    napi_value args[1];
    napi_get_cb_info(env, info, &argc, args, NULL, NULL);

    // Get buffer info for data (zero-copy)
    void *buffer_data;
    size_t buffer_length;
    napi_status status = napi_get_buffer_info(env, args[0], &buffer_data, &buffer_length);
    if (status != napi_ok) {
        napi_throw_error(env, NULL, "Argument must be a Buffer");
        return NULL;
    }

    // Compute byte sum using sz_bytesum
    sz_u64_t sum = sz_bytesum((sz_cptr_t)buffer_data, buffer_length);

    // Convert to JavaScript BigInt and return
    napi_value js_result;
    napi_create_bigint_uint64(env, sum, &js_result);

    return js_result;
}

napi_value Init(napi_env env, napi_value exports) {