private double ConvertToDouble(int index)
{
if (CApi.lua_isnumber(lua_State, index) == 0)
{
throw new LuaInvalidCastException($"Index {index} doesn't contain a double value.");
}
var convertedValue = CApi.lua_tonumberx(lua_State, index, out int isNum);
if (isNum == 0)
{
throw new LuaInvalidCastException($"Failed to convert index {index} to double. Index contains {ConvertToString(index)}");
}
return(convertedValue);
}
private bool IsNumber(int index) => CApi.lua_isnumber(lua_State, index) == 1;
