src/test/ui/typeck/issue-68590-reborrow-through-derefmut.rs

   1 // check-pass
   2
   3 // rust-lang/rust#68590: confusing diagnostics when reborrowing through DerefMut.
   4
   5 use std::cell::RefCell;
   6
   7 struct A;
   8
   9 struct S<'a> {
  10     a: &'a mut A,
  11 }
  12
  13 fn take_a(_: &mut A) {}
  14
  15 fn test<'a>(s: &RefCell<S<'a>>) {
  16     let mut guard = s.borrow_mut();
  17     take_a(guard.a);
  18     let _s2 = S { a: guard.a };
  19 }
  20
  21 fn main() {
  22     let a = &mut A;
  23     let s = RefCell::new(S { a });
  24     test(&s);
  25 }