/src/test/run-pass/newtype.rs

1enum mytype = {compute: extern fn(mytype) -> int, val: int};
2
3fn compute(i: mytype) -> int { return i.val + 20; }
4
5fn main() {
6    let myval = mytype({compute: compute, val: 30});
7    assert (myval.compute(myval) == 50);
8}