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
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
|
// Tests that `T: ~const Foo` in a specializing impl is treated as equivalent to
// `T: Foo` in the default impl for the purposes of specialization (i.e., it
// does not think that the user is attempting to specialize on trait `Foo`).
//@ check-pass
#![feature(rustc_attrs)]
#![feature(min_specialization)]
#![feature(const_trait_impl)]
#[rustc_specialization_trait]
trait Specialize {}
#[const_trait]
trait Foo {}
#[const_trait]
trait Bar {
fn bar();
}
impl<T> Bar for T
where
T: Foo,
{
default fn bar() {}
}
impl<T> const Bar for T
where
T: ~const Foo,
T: Specialize,
{
fn bar() {}
}
#[const_trait]
trait Baz {
fn baz();
}
impl<T> const Baz for T
where
T: Foo,
{
default fn baz() {}
}
impl<T> const Baz for T
where
T: ~const Foo,
T: Specialize,
{
fn baz() {}
}
fn main() {}
|
