Nimrod macro to unpack values from an array

gistfile1.nim

import macros

macro unpackArray(arr, count: expr): expr {.immediate.} =
  var source = "("
  for i in 0..count.intVal-1:
    if i > 0: source.add(',')
    source.add(arr.toStrLit.strVal & "[" & $i & "]")
  source.add(')')
  result = parseStmt(source)

type TIntArray = array[0..5, int] # an array that is indexed with 0..5
var x: TIntArray
x = [1, 2, 3, 4, 5, 6]
let (d1, d2, d3) = x.unpackArray(3)
echo d1, d2, d3