blob: c55f5a726bdcb11285f2c013bfb14e85e38bbf2c (
plain)
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
|
// revisions: base extended
//[base] check-fail
//[extended] check-pass
#![feature(associated_type_defaults)]
#![cfg_attr(extended, feature(generic_associated_types_extended))]
#![cfg_attr(extended, allow(incomplete_features))]
trait Foo {
type A<'a> where Self: 'a;
}
struct Fooy;
impl Foo for Fooy {
type A<'a> = &'a ();
}
#[derive(Clone)]
struct Fooer<T>(T);
impl<T> Foo for Fooer<T> {
type A<'x> = &'x () where T: 'x;
}
fn f(_arg : Box<dyn for<'a> Foo<A<'a> = &'a ()>>) {}
//[base]~^ the trait `Foo` cannot be made into an object
fn main() {
let foo = Fooer(5);
f(Box::new(foo));
}
|
