;;;; A dyn's .field and [:key] trap with get's and put's own sentences, one
;;;; per run. The argument chooses which; the test asserts the line numbers.
defclass(State, [paused bool step bool])

fn as-dyn(d) -> dyn = d

fn main(args: [str]) -> i32
  let which =
    if length(args) > 1 then i32(bytes->i64(bytes-view(args[1]))) else 0
  let s = State(false, false)
  let n = as-dyn(3)
  println("before")
  if which == 0
    println(n.paused)
  elif which == 1
    s.paused = 1
  elif which == 2
    n.paused = true
  elif which == 3
    s[:step] = 2
  elif which == 5
    s.pasued = true
  elif which == 6
    println(s.pasued)
  else
    println(n[:paused])
  0