File: unreachable-try-pattern.stderr

package info (click to toggle)
rustc 1.88.0%2Bdfsg1-1
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid
  • size: 934,128 kB
  • sloc: xml: 158,127; python: 36,062; javascript: 19,855; sh: 19,700; cpp: 18,947; ansic: 12,993; asm: 4,792; makefile: 690; lisp: 29; perl: 29; ruby: 19; sql: 11
file content (44 lines) | stat: -rw-r--r-- 1,755 bytes parent folder | download | duplicates (14)
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
warning: unreachable expression
  --> $DIR/unreachable-try-pattern.rs:19:36
   |
LL |     let y = (match x { Ok(n) => Ok(n as u32), Err(e) => Err(e) })?;
   |                                    -^^^^^^^
   |                                    |
   |                                    unreachable expression
   |                                    any code following this expression is unreachable
   |
note: the lint level is defined here
  --> $DIR/unreachable-try-pattern.rs:3:9
   |
LL | #![warn(unreachable_code)]
   |         ^^^^^^^^^^^^^^^^

warning: unreachable pattern
  --> $DIR/unreachable-try-pattern.rs:19:24
   |
LL |     let y = (match x { Ok(n) => Ok(n as u32), Err(e) => Err(e) })?;
   |                        ^^^^^-----------------
   |                        |
   |                        matches no values because `!` is uninhabited
   |                        help: remove the match arm
   |
   = note: to learn more about uninhabited types, see https://doc.rust-lang.org/nomicon/exotic-sizes.html#empty-types
note: the lint level is defined here
  --> $DIR/unreachable-try-pattern.rs:4:9
   |
LL | #![warn(unreachable_patterns)]
   |         ^^^^^^^^^^^^^^^^^^^^

warning: unreachable pattern
  --> $DIR/unreachable-try-pattern.rs:30:40
   |
LL |     let y = (match x { Ok(n) => Ok(n), Err(e) => Err(e) })?;
   |                                        ^^^^^^----------
   |                                        |
   |                                        matches no values because `Void` is uninhabited
   |                                        help: remove the match arm
   |
   = note: to learn more about uninhabited types, see https://doc.rust-lang.org/nomicon/exotic-sizes.html#empty-types

warning: 3 warnings emitted