rust/src/test/run-pass/borrowck-preserve-box-in-discr.rs

18 lines
400 B
Rust

// exec-env:RUST_POISON_ON_FREE=1
fn main() {
let mut x = @{f: ~3};
match 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));
}
}
}