summaryrefslogtreecommitdiffstats
path: root/tests/ui/nll/match-cfg-fake-edges.stderr
blob: a6261345ceac7bc7fbcd92a666f98d0a506fa2f8 (plain)
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
error[E0381]: used binding `x` isn't initialized
  --> $DIR/match-cfg-fake-edges.rs:29:13
   |
LL |     let x;
   |         - binding declared here but left uninitialized
...
LL |         _ if { x = 2; true } => 1,
   |                ----- binding initialized here in some conditions
LL |         _ if {
LL |             x;
   |             ^ `x` used here but it isn't initialized
   |
help: consider assigning a value
   |
LL |     let x = 0;
   |           +++

error[E0381]: used binding `x` isn't initialized
  --> $DIR/match-cfg-fake-edges.rs:39:13
   |
LL |     let x;
   |         - binding declared here but left uninitialized
LL |     match y {
LL |         _ if let Some(()) = { x = 2; Some(()) } => 1,
   |                               ----- binding initialized here in some conditions
LL |         _ if let Some(()) = {
LL |             x;
   |             ^ `x` used here but it isn't initialized
   |
help: consider assigning a value
   |
LL |     let x = 0;
   |           +++

error[E0382]: use of moved value: `x`
  --> $DIR/match-cfg-fake-edges.rs:53:13
   |
LL |     let x = String::new();
   |         - move occurs because `x` has type `String`, which does not implement the `Copy` trait
...
LL |         false if { drop(x); true } => 1,
   |                         - value moved here
LL |         true => {
LL |             x;
   |             ^ value used here after move
   |
help: consider cloning the value if the performance cost is acceptable
   |
LL |         false if { drop(x.clone()); true } => 1,
   |                          ++++++++

error[E0382]: use of moved value: `x`
  --> $DIR/match-cfg-fake-edges.rs:63:13
   |
LL |     let x = String::new();
   |         - move occurs because `x` has type `String`, which does not implement the `Copy` trait
LL |     match y {
LL |         false if let Some(()) = { drop(x); Some(()) } => 1,
   |                                        - value moved here
LL |         true => {
LL |             x;
   |             ^ value used here after move
   |
help: consider cloning the value if the performance cost is acceptable
   |
LL |         false if let Some(()) = { drop(x.clone()); Some(()) } => 1,
   |                                         ++++++++

error: aborting due to 4 previous errors

Some errors have detailed explanations: E0381, E0382.
For more information about an error, try `rustc --explain E0381`.