An unsafe but fast and clean way - just to cast your tuple to your object type:
proc createRef(typeinfo: typedesc, data: tuple): auto =
result = new(typeinfo)
result[]=cast[typeinfo](data)
Be aware you should provide a tuple of values of needed types, or the same in
size, and not just compatible:
type
O = object
x: int
y: float
z: int8
q: int8
let r = createRef(O, (5, 6.6, 7i8, 8i8))
echo r[]
In this example, if you provide the 3rd as `int`, not expected `int8`, you
won't get the 4th item of tuple into your object - `7` literal will pass an
`int` value (32/64 bits), setting `z` and `q` fields to `7` and `0`
respectively.
