src/test/ui/issues/issue-18906.rs

   1 // check-pass
   2 #![allow(dead_code)]
   3 // pretty-expanded FIXME #23616
   4
   5 pub trait Borrow<Borrowed: ?Sized> {
   6         fn borrow(&self) -> &Borrowed;
   7 }
   8
   9 impl<T: Sized> Borrow<T> for T {
  10         fn borrow(&self) -> &T { self }
  11 }
  12
  13 trait Foo {
  14         fn foo(&self, other: &Self);
  15 }
  16
  17 fn bar<K, Q>(k: &K, q: &Q) where K: Borrow<Q>, Q: Foo {
  18     q.foo(k.borrow())
  19 }
  20
  21 struct MyTree<K>(K);
  22
  23 impl<K> MyTree<K> {
  24     // This caused a failure in #18906
  25     fn bar<Q>(k: &K, q: &Q) where K: Borrow<Q>, Q: Foo {
  26         q.foo(k.borrow())
  27     }
  28 }
  29
  30 fn main() {}