src/test/ui/nll/issue-52057.rs

   1 // Regression test for #52057. There is an implied bound
   2 // that `I: 'a` where `'a` is the lifetime of `self` in `parse_first`;
   3 // but to observe that, one must normalize first.
   4 //
   5 // run-pass
   6
   7 pub trait Parser {
   8     type Input;
   9
  10     fn parse_first(input: &mut Self::Input);
  11 }
  12
  13 impl<'a, I, P: ?Sized> Parser for &'a mut P
  14 where
  15     P: Parser<Input = I>,
  16 {
  17     type Input = I;
  18
  19     fn parse_first(_: &mut Self::Input) {}
  20 }
  21
  22 fn main() {}