mirror of
https://github.com/rust-lang/rust.git
synced 2024-11-22 23:04:33 +00:00
23 lines
462 B
Rust
23 lines
462 B
Rust
// Regression test for #52057. There is an implied bound
|
|
// that `I: 'x` where `'x` is the lifetime of the reference `&mut Self::Input`
|
|
// 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() {}
|