| //@ run-pass | |
| #![allow(dead_code)] | |
| // Test an edge case in region inference: the lifetime of the borrow | |
| // of `*x` must be extended to at least 'a. | |
| //@ pretty-expanded FIXME #23616 | |
| fn foo<'a,'b>(x: &'a &'b mut isize) -> &'a isize { | |
| let y = &*x; // should be inferred to have type &'a &'b mut isize... | |
| // ...because if we inferred, say, &'x &'b mut isize where 'x <= 'a, | |
| // this reborrow would be illegal: | |
| &**y | |
| } | |
| pub fn main() { | |
| /* Just want to know that it compiles. */ | |
| } |