use std; import std::uint; fn test(x: bool, foo: ~{x: int, y: int, z: int}) -> int { let bar = foo; let y: ~{x: int, y: int, z: int}; if x { y <- bar; } else { y = ~{x: 4, y: 5, z: 6}; } ret y.y; } fn main() { let x = ~{x: 1, y: 2, z: 3}; for each i: uint in uint::range(0u, 10000u) { assert (test(true, x) == 2); } assert (test(false, x) == 5); }