40 lines
650 B
Rust
40 lines
650 B
Rust
//@ check-pass
|
|
|
|
use std::io::Write;
|
|
|
|
struct A(Vec<u8>);
|
|
|
|
struct B<'a> {
|
|
one: &'a mut A,
|
|
two: &'a mut Vec<u8>,
|
|
three: Vec<u8>,
|
|
}
|
|
|
|
impl<'a> B<'a> {
|
|
fn one(&mut self) -> &mut impl Write {
|
|
&mut self.one.0
|
|
}
|
|
fn two(&mut self) -> &mut impl Write {
|
|
&mut *self.two
|
|
}
|
|
fn three(&mut self) -> &mut impl Write {
|
|
&mut self.three
|
|
}
|
|
}
|
|
|
|
struct C<'a>(B<'a>);
|
|
|
|
impl<'a> C<'a> {
|
|
fn one(&mut self) -> &mut impl Write {
|
|
self.0.one()
|
|
}
|
|
fn two(&mut self) -> &mut impl Write {
|
|
self.0.two()
|
|
}
|
|
fn three(&mut self) -> &mut impl Write {
|
|
self.0.three()
|
|
}
|
|
}
|
|
|
|
fn main() {}
|