1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
|
// check-pass
use std::marker::PhantomData;
pub trait GenAssoc<T> {
type Iter<'at>;
fn iter(&self) -> Self::Iter<'_>;
fn reborrow<'longt: 'shortt, 'shortt>(iter: Self::Iter<'longt>) -> Self::Iter<'shortt>;
}
pub struct Wrapper<'a, T: 'a, A: GenAssoc<T>> {
a: A::Iter<'a>,
_p: PhantomData<T>,
}
impl<'ai, T: 'ai, A: GenAssoc<T>> GenAssoc<T> for Wrapper<'ai, T, A>
where
A::Iter<'ai>: Clone,
{
type Iter<'b> = ();
fn iter<'s>(&'s self) -> Self::Iter<'s> {
let a = A::reborrow::<'ai, 's>(self.a.clone());
}
fn reborrow<'long: 'short, 'short>(iter: Self::Iter<'long>) -> Self::Iter<'short> {
()
}
}
fn main() {}
|
