tests/ui/late-bound-lifetimes/issue-36381.rs

   1 // run-pass
   2 // Regression test for #36381. The monomorphization collector was asserting that
   3 // there are no projection types, but the `<&str as
   4 // StreamOnce>::Position` projection contained a late-bound region,
   5 // and we don't currently normalize in that case until the function is
   6 // actually invoked.
   7
   8 pub trait StreamOnce {
   9     type Position;
  10 }
  11
  12 impl<'a> StreamOnce for &'a str {
  13     type Position = usize;
  14 }
  15
  16 pub fn parser<F>(_: F) {
  17 }
  18
  19 fn follow(_: &str) -> <&str as StreamOnce>::Position {
  20     panic!()
  21 }
  22
  23 fn main() {
  24     parser(follow);
  25 }