src/test/ui/issues/issue-45801.rs

   1 struct Params;
   2
   3 pub trait Plugin<E: ?Sized> {
   4     type Error;
   5 }
   6
   7 pub trait Pluggable {
   8     fn get_ref<P: Plugin<Self>>(&mut self) -> Option<P::Error> {
   9         None
  10     }
  11 }
  12
  13 struct Foo;
  14 impl Plugin<Foo> for Params {
  15     type Error = ();
  16 }
  17
  18 impl<T: Copy> Pluggable for T {}
  19
  20 fn handle(req: &mut i32) {
  21     req.get_ref::<Params>();
  22     //~^ ERROR the trait bound `Params: Plugin<i32>` is not satisfied
  23 }
  24
  25 fn main() {}