Function complex_enum_next_item_helper

library/LuaWrapper.cpp:1401–1415

 */

static bool complex_enum_next_item_helper(lua_State *L, int64_t &item, bool wrap = false)
{
    const auto *complex = (enum_identity::ComplexData*)lua_touserdata(L, lua_upvalueindex(2));
    auto it = complex->value_index_map.find(item);
    if (it != complex->value_index_map.end())
    {
        size_t index = it->second;
        if (!wrap && index >= complex->size() - 1)
            return false;

        item = complex->index_value_map[(index + 1) % complex->size()];
        return true;
    }
    return false;
}

static int complex_enum_inext(lua_State *L)
{