File: for_loop_over_fallibles.stderr

package info (click to toggle)
rustc-web 1.70.0%2Bdfsg1-7~deb11u1
  • links: PTS, VCS
  • area: main
  • in suites: bullseye
  • size: 1,517,036 kB
  • sloc: xml: 147,962; javascript: 10,210; sh: 8,590; python: 8,220; ansic: 5,901; cpp: 4,635; makefile: 4,006; asm: 2,856
file content (101 lines) | stat: -rw-r--r-- 3,318 bytes parent folder | download | duplicates (4)
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
warning: for loop over an `Option`. This is more readably written as an `if let` statement
  --> $DIR/for_loop_over_fallibles.rs:5:14
   |
LL |     for _ in Some(1) {}
   |              ^^^^^^^
   |
   = note: `#[warn(for_loops_over_fallibles)]` on by default
help: to check pattern in a loop use `while let`
   |
LL |     while let Some(_) = Some(1) {}
   |     ~~~~~~~~~~~~~~~ ~~~
help: consider using `if let` to clear intent
   |
LL |     if let Some(_) = Some(1) {}
   |     ~~~~~~~~~~~~ ~~~

warning: for loop over a `Result`. This is more readably written as an `if let` statement
  --> $DIR/for_loop_over_fallibles.rs:9:14
   |
LL |     for _ in Ok::<_, ()>(1) {}
   |              ^^^^^^^^^^^^^^
   |
help: to check pattern in a loop use `while let`
   |
LL |     while let Ok(_) = Ok::<_, ()>(1) {}
   |     ~~~~~~~~~~~~~ ~~~
help: consider using `if let` to clear intent
   |
LL |     if let Ok(_) = Ok::<_, ()>(1) {}
   |     ~~~~~~~~~~ ~~~

warning: for loop over an `Option`. This is more readably written as an `if let` statement
  --> $DIR/for_loop_over_fallibles.rs:15:14
   |
LL |     for _ in [0; 0].iter().next() {}
   |              ^^^^^^^^^^^^^^^^^^^^
   |
help: to iterate over `[0; 0].iter()` remove the call to `next`
   |
LL |     for _ in [0; 0].iter().by_ref() {}
   |                           ~~~~~~~~~
help: consider using `if let` to clear intent
   |
LL |     if let Some(_) = [0; 0].iter().next() {}
   |     ~~~~~~~~~~~~ ~~~

warning: for loop over a `Result`. This is more readably written as an `if let` statement
  --> $DIR/for_loop_over_fallibles.rs:21:14
   |
LL |     for _ in Ok::<_, ()>([0; 0].iter()) {}
   |              ^^^^^^^^^^^^^^^^^^^^^^^^^^
   |
help: to check pattern in a loop use `while let`
   |
LL |     while let Ok(_) = Ok::<_, ()>([0; 0].iter()) {}
   |     ~~~~~~~~~~~~~ ~~~
help: consider using `if let` to clear intent
   |
LL |     if let Ok(_) = Ok::<_, ()>([0; 0].iter()) {}
   |     ~~~~~~~~~~ ~~~

warning: for loop over a `Result`. This is more readably written as an `if let` statement
  --> $DIR/for_loop_over_fallibles.rs:29:14
   |
LL |     for _ in Ok::<_, ()>([0; 0].iter()) {}
   |              ^^^^^^^^^^^^^^^^^^^^^^^^^^
   |
help: to check pattern in a loop use `while let`
   |
LL |     while let Ok(_) = Ok::<_, ()>([0; 0].iter()) {}
   |     ~~~~~~~~~~~~~ ~~~
help: consider unwrapping the `Result` with `?` to iterate over its contents
   |
LL |     for _ in Ok::<_, ()>([0; 0].iter())? {}
   |                                        +
help: consider using `if let` to clear intent
   |
LL |     if let Ok(_) = Ok::<_, ()>([0; 0].iter()) {}
   |     ~~~~~~~~~~ ~~~

warning: for loop over a `Result`. This is more readably written as an `if let` statement
  --> $DIR/for_loop_over_fallibles.rs:36:14
   |
LL |     for _ in Ok::<_, ()>([0; 0]) {}
   |              ^^^^^^^^^^^^^^^^^^^
   |
help: to check pattern in a loop use `while let`
   |
LL |     while let Ok(_) = Ok::<_, ()>([0; 0]) {}
   |     ~~~~~~~~~~~~~ ~~~
help: consider unwrapping the `Result` with `?` to iterate over its contents
   |
LL |     for _ in Ok::<_, ()>([0; 0])? {}
   |                                 +
help: consider using `if let` to clear intent
   |
LL |     if let Ok(_) = Ok::<_, ()>([0; 0]) {}
   |     ~~~~~~~~~~ ~~~

warning: 6 warnings emitted