| // Regression test for #52057. There is an implied bound | |
| // that `I: 'a` where `'a` is the lifetime of `self` in `parse_first`; | |
| // but to observe that, one must normalize first. | |
| // | |
| // run-pass | |
| pub trait Parser { | |
| type Input; | |
| fn parse_first(input: &mut Self::Input); | |
| } | |
| impl<'a, I, P: ?Sized> Parser for &'a mut P | |
| where | |
| P: Parser<Input = I>, | |
| { | |
| type Input = I; | |
| fn parse_first(_: &mut Self::Input) {} | |
| } | |
| fn main() {} |