rust/src/test/run-pass/move-1-unique.rs

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fn test(x: bool, foo: ~{x: int, y: int, z: int}) -> int {
let bar = foo;
let mut 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};
assert (test(true, x) == 2);
assert (test(true, x) == 2);
assert (test(true, x) == 2);
assert (test(false, x) == 5);
}