Nim has no mechanism to safely reference a value type, as such you need to
raise the `original` to a `ref seq[int]` like so
var original = new seq[int]
original[] = @[1, 2, 3, 4, 5]
type
Thing = object
# I would like `list` to be set to a *reference *of `original`
list: ref seq[int]
proc initThing(list: ref seq[int]): Thing =
result.list = list
var thing = initThing(original)
proc show(label: string) =
echo "\n", label
echo "Original: ", original.repr
echo "Reference: ", thing.list.repr
show "Initial:"
original[0] = 666
show "Updated:"
if thing.list[0] != 666:
echo "\nNot a reference!"
Run
