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
31
32
33
34
35
36
37
|
//@ check-pass
// Regression test for #37655. The problem was a false edge created by
// coercion that wound up requiring that `'a` (in `split()`) outlive
// `'b`, which shouldn't be necessary.
#![allow(warnings)]
trait SliceExt<T> {
type Item;
fn get_me<I>(&self, index: I) -> &I::Output
where I: SliceIndex<Self::Item>;
}
impl<T> SliceExt<T> for [T] {
type Item = T;
fn get_me<I>(&self, index: I) -> &I::Output
where I: SliceIndex<T>
{
panic!()
}
}
pub trait SliceIndex<T> {
type Output: ?Sized;
}
impl<T> SliceIndex<T> for usize {
type Output = T;
}
fn foo<'a, 'b>(split: &'b [&'a [u8]]) -> &'a [u8] {
split.get_me(0)
}
fn main() { }
|
