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//@ run-pass
// Tests that the scope of the pointer returned from `get()` is
// limited to the deref operation itself, and does not infect the
// block as a whole.
struct Box {
x: usize
}
impl Box {
fn get(&self) -> &usize {
&self.x
}
fn set(&mut self, x: usize) {
self.x = x;
}
}
fn fun1() {
// in the past, borrow checker behaved differently when
// init and decl of `v` were distinct
let v;
let mut a_box = Box {x: 0};
a_box.set(22);
v = *a_box.get();
a_box.set(v+1);
assert_eq!(23, *a_box.get());
}
fn fun2() {
let mut a_box = Box {x: 0};
a_box.set(22);
let v = *a_box.get();
a_box.set(v+1);
assert_eq!(23, *a_box.get());
}
pub fn main() {
fun1();
fun2();
}
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