File: in-signature.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 (61 lines) | stat: -rw-r--r-- 2,379 bytes parent folder | download | duplicates (7)
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
59
60
61
#![crate_type = "rlib"]
#![feature(generic_arg_infer)]

struct Foo<const N: usize>;
struct Bar<T, const N: usize>(T);

fn arr_fn() -> [u8; _] {
    //~^ ERROR the placeholder `_` is not allowed within types on item signatures for return types
    [0; 3]
}

fn ty_fn() -> Bar<i32, _> {
    //~^ ERROR the placeholder `_` is not allowed within types on item signatures for return types
    Bar::<i32, 3>(0)
}

fn ty_fn_mixed() -> Bar<_, _> {
    //~^ ERROR the placeholder `_` is not allowed within types on item signatures for return types
    Bar::<i32, 3>(0)
}

const ARR_CT: [u8; _] = [0; 3];
//~^ ERROR the placeholder `_` is not allowed within types on item signatures for constants
static ARR_STATIC: [u8; _] = [0; 3];
//~^ ERROR the placeholder `_` is not allowed within types on item signatures for static variables
const TY_CT: Bar<i32, _> = Bar::<i32, 3>(0);
//~^ ERROR the placeholder `_` is not allowed within types on item signatures for constants
static TY_STATIC: Bar<i32, _> = Bar::<i32, 3>(0);
//~^ ERROR the placeholder `_` is not allowed within types on item signatures for static variables
const TY_CT_MIXED: Bar<_, _> = Bar::<i32, 3>(0);
//~^ ERROR the placeholder `_` is not allowed within types on item signatures for constants
static TY_STATIC_MIXED: Bar<_, _> = Bar::<i32, 3>(0);
//~^ ERROR the placeholder `_` is not allowed within types on item signatures for static variables
trait ArrAssocConst {
    const ARR: [u8; _];
    //~^ ERROR the placeholder `_` is not allowed within types on item signatures for associated constants
}
trait TyAssocConst {
    const ARR: Bar<i32, _>;
    //~^ ERROR the placeholder `_` is not allowed within types on item signatures for associated constants
}
trait TyAssocConstMixed {
    const ARR: Bar<_, _>;
    //~^ ERROR the placeholder `_` is not allowed within types on item signatures for associated constants
}

trait AssocTy {
    type Assoc;
}
impl AssocTy for i8 {
    type Assoc = [u8; _];
    //~^ ERROR the placeholder `_` is not allowed within types on item signatures for associated types
}
impl AssocTy for i16 {
    type Assoc = Bar<i32, _>;
    //~^ ERROR the placeholder `_` is not allowed within types on item signatures for associated types
}
impl AssocTy for i32 {
    type Assoc = Bar<_, _>;
    //~^ ERROR the placeholder `_` is not allowed within types on item signatures for associated types
}