File: refine.rs

package info (click to toggle)
rustc-web 1.78.0%2Bdfsg1-2~deb11u3
  • links: PTS, VCS
  • area: main
  • in suites: bullseye
  • size: 1,245,360 kB
  • sloc: xml: 147,985; javascript: 18,022; sh: 11,083; python: 10,265; ansic: 6,172; cpp: 5,023; asm: 4,390; makefile: 4,269
file content (58 lines) | stat: -rw-r--r-- 1,026 bytes parent folder | download | duplicates (2)
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
58
#![deny(refining_impl_trait)]

pub trait Foo {
    fn bar() -> impl Sized;
}

pub struct A;
impl Foo for A {
    fn bar() -> impl Copy {}
    //~^ ERROR impl method signature does not match trait method signature
}

pub struct B;
impl Foo for B {
    fn bar() {}
    //~^ ERROR impl method signature does not match trait method signature
}

pub struct C;
impl Foo for C {
    fn bar() -> () {}
    //~^ ERROR impl method signature does not match trait method signature
}

struct Private;
impl Foo for Private {
    fn bar() -> () {}
}

pub trait Arg<A> {
    fn bar() -> impl Sized;
}
impl Arg<Private> for A {
    fn bar() -> () {}
}

pub trait Late {
    fn bar<'a>(&'a self) -> impl Sized + 'a;
}

pub struct D;
impl Late for D {
    fn bar(&self) -> impl Copy + '_ {}
    //~^ ERROR impl method signature does not match trait method signature
}

mod unreachable {
    pub trait UnreachablePub {
        fn bar() -> impl Sized;
    }

    struct E;
    impl UnreachablePub for E {
        fn bar() {}
    }
}

fn main() {}