rust/tests/ui/nll/polonius/issue-46589.rs
2023-01-11 09:32:08 +00:00

32 lines
697 B
Rust

// This test is a copy of `ui/nll/issue-46589.rs` which fails in NLL but succeeds in Polonius.
// As we can't have a test here which conditionally passes depending on a test
// revision/compile-flags. We ensure here that it passes in Polonius mode.
// check-pass
// compile-flags: -Z polonius
struct Foo;
impl Foo {
fn get_self(&mut self) -> Option<&mut Self> {
Some(self)
}
fn new_self(&mut self) -> &mut Self {
self
}
fn trigger_bug(&mut self) {
let other = &mut (&mut *self);
*other = match (*other).get_self() {
Some(s) => s,
None => (*other).new_self()
};
let c = other;
}
}
fn main() {}