src/test/ui/issues/issue-59326.rs

   1 // check-pass
   2 trait Service {
   3     type S;
   4 }
   5
   6 trait Framing {
   7     type F;
   8 }
   9
  10 impl Framing for () {
  11     type F = ();
  12 }
  13
  14 trait HttpService<F: Framing>: Service<S = F::F> {}
  15
  16 type BoxService = Box<dyn HttpService<(), S = ()>>;
  17
  18 fn build_server<F: FnOnce() -> BoxService>(_: F) {}
  19
  20 fn make_server<F: Framing>() -> Box<dyn HttpService<F, S = F::F>> {
  21     unimplemented!()
  22 }
  23
  24 fn main() {
  25     build_server(|| make_server())
  26 }