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
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
|
error: unexpected `,` in pattern
--> $DIR/feature-gate-never_patterns.rs:34:16
|
LL | Some(_),
| ^
|
help: try adding parentheses to match on a tuple...
|
LL | (Some(_),)
| + +
help: ...or a vertical bar to match on multiple alternatives
|
LL | Some(_) |
|
error[E0408]: variable `_x` is not bound in all patterns
--> $DIR/feature-gate-never_patterns.rs:8:19
|
LL | let (Ok(_x) | Err(&!)) = res.as_ref();
| -- ^^^^^^^ pattern doesn't bind `_x`
| |
| variable not in all patterns
error[E0658]: `!` patterns are experimental
--> $DIR/feature-gate-never_patterns.rs:8:24
|
LL | let (Ok(_x) | Err(&!)) = res.as_ref();
| ^
|
= note: see issue #118155 <https://github.com/rust-lang/rust/issues/118155> for more information
= help: add `#![feature(never_patterns)]` to the crate attributes to enable
error[E0658]: `!` patterns are experimental
--> $DIR/feature-gate-never_patterns.rs:15:13
|
LL | !
| ^
|
= note: see issue #118155 <https://github.com/rust-lang/rust/issues/118155> for more information
= help: add `#![feature(never_patterns)]` to the crate attributes to enable
error[E0658]: `!` patterns are experimental
--> $DIR/feature-gate-never_patterns.rs:21:13
|
LL | !
| ^
|
= note: see issue #118155 <https://github.com/rust-lang/rust/issues/118155> for more information
= help: add `#![feature(never_patterns)]` to the crate attributes to enable
error[E0658]: `!` patterns are experimental
--> $DIR/feature-gate-never_patterns.rs:26:13
|
LL | ! => {}
| ^
|
= note: see issue #118155 <https://github.com/rust-lang/rust/issues/118155> for more information
= help: add `#![feature(never_patterns)]` to the crate attributes to enable
error: `match` arm with no body
--> $DIR/feature-gate-never_patterns.rs:39:9
|
LL | Some(_)
| ^^^^^^^- help: add a body after the pattern: `=> todo!(),`
error: `match` arm with no body
--> $DIR/feature-gate-never_patterns.rs:44:9
|
LL | Some(_) if false,
| ^^^^^^^- help: add a body after the pattern: `=> todo!(),`
error: `match` arm with no body
--> $DIR/feature-gate-never_patterns.rs:46:9
|
LL | Some(_) if false
| ^^^^^^^- help: add a body after the pattern: `=> todo!(),`
error[E0658]: `!` patterns are experimental
--> $DIR/feature-gate-never_patterns.rs:51:13
|
LL | Err(!),
| ^
|
= note: see issue #118155 <https://github.com/rust-lang/rust/issues/118155> for more information
= help: add `#![feature(never_patterns)]` to the crate attributes to enable
error[E0658]: `!` patterns are experimental
--> $DIR/feature-gate-never_patterns.rs:55:13
|
LL | Err(!) if false,
| ^
|
= note: see issue #118155 <https://github.com/rust-lang/rust/issues/118155> for more information
= help: add `#![feature(never_patterns)]` to the crate attributes to enable
error: `match` arm with no body
--> $DIR/feature-gate-never_patterns.rs:65:9
|
LL | Some(_)
| ^^^^^^^- help: add a body after the pattern: `=> todo!(),`
error: `match` arm with no body
--> $DIR/feature-gate-never_patterns.rs:71:9
|
LL | Some(_) if false
| ^^^^^^^- help: add a body after the pattern: `=> todo!(),`
error: a guard on a never pattern will never be run
--> $DIR/feature-gate-never_patterns.rs:55:19
|
LL | Err(!) if false,
| ^^^^^ help: remove this guard
error: aborting due to 14 previous errors
Some errors have detailed explanations: E0408, E0658.
For more information about an error, try `rustc --explain E0408`.
|
