rust/src/test/run-pass/task-comm-chan-nil.rs

// xfail-boot
// -*- rust -*-

// rustboot can't transmit nils across channels because they don't have
// any size, but rustc currently can because they do have size. Whether
// or not this is desirable I don't know, but here's a regression test.

impure fn main() {
  let port[()] po = port();
  let chan[()] ch = chan(po);

  ch <| ();

  let () n;
  n <- po;

  check (n == ());
}