tests/ui/polymorphization/drop_shims/simple.rs

   1 // check-pass
   2 // compile-flags:-Zpolymorphize=on
   3
   4 pub struct OnDrop<F: Fn()>(pub F);
   5
   6 impl<F: Fn()> Drop for OnDrop<F> {
   7     fn drop(&mut self) { }
   8 }
   9
  10 fn foo<R, S: FnOnce()>(
  11     _: R,
  12     _: S,
  13 ) {
  14     let bar = || {
  15         let _ = OnDrop(|| ());
  16     };
  17     let _ = bar();
  18 }
  19
  20 fn main() {
  21     foo(3u32, || {});
  22 }