RosettaCodeData/Task/Multiple-distinct-objects/Nim/multiple-distinct-objects-3.nim

template newSeqWith2(len: int, init: expr): expr =
  var result {.gensym.} = newSeq[type(init)](len)
  for i in 0 .. <len:
    result[i] = init
  result

var ys = newSeqWith2(n, foo())