rust/src/test/run-pass/borrowck-preserve-box-in-pat.rs
2012-06-08 20:39:11 -07:00

18 lines
385 B
Rust

// exec-env:RUST_POISON_ON_FREE=1
fn main() {
let mut x = @mut @{f: ~3};
alt x {
@@{f: b_x} {
assert *b_x == 3;
assert ptr::addr_of(x.f) == ptr::addr_of(b_x);
*x = @{f: ~4};
#debug["ptr::addr_of(*b_x) = %x", ptr::addr_of(*b_x) as uint];
assert *b_x == 3;
assert ptr::addr_of(*x.f) != ptr::addr_of(*b_x);
}
}
}