src/test/run-pass/obj-recursion.rs


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type adder =
  obj {
    fn add();
  };

obj leaf_adder(int x) {
  fn add() {
    log "leaf";
    log x;
  }
}
obj delegate_adder(adder a) {
  fn add() {
    a.add();
  }
}

fn main() {
  auto x =
    delegate_adder
    (delegate_adder
     (delegate_adder
      (leaf_adder(10))));
  x.add();
}