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Commit | Line | Data |
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136023e0 XL |
1 | // edition:2021 |
2 | // check-pass | |
6a06907d XL |
3 | #![warn(unused)] |
4 | ||
5 | struct Point { | |
6 | x: u32, | |
7 | y: u32, | |
8 | } | |
9 | ||
10 | fn test1() { | |
11 | let t = (String::from("Hello"), String::from("World")); | |
12 | ||
13 | let c = || { | |
14 | let (t1, t2) = t; | |
15 | //~^ WARN unused variable: `t1` | |
16 | //~| WARN unused variable: `t2` | |
17 | }; | |
18 | ||
19 | c(); | |
20 | } | |
21 | ||
22 | fn test2() { | |
23 | let t = (String::from("Hello"), String::from("World")); | |
24 | ||
25 | let c = || { | |
26 | let (t1, _) = t; | |
27 | //~^ WARN unused variable: `t1` | |
28 | }; | |
29 | ||
30 | c(); | |
31 | } | |
32 | ||
33 | fn test3() { | |
34 | let t = (String::from("Hello"), String::from("World")); | |
35 | ||
36 | let c = || { | |
37 | let (_, t2) = t; | |
38 | //~^ WARN unused variable: `t2` | |
39 | }; | |
40 | ||
41 | c(); | |
42 | } | |
43 | ||
44 | fn test4() { | |
45 | let t = (String::from("Hello"), String::from("World")); | |
46 | //~^ WARN unused variable: `t` | |
47 | ||
48 | let c = || { | |
49 | let (_, _) = t; | |
50 | }; | |
51 | ||
52 | c(); | |
53 | } | |
54 | ||
55 | fn test5() { | |
56 | let t = (String::new(), String::new()); | |
57 | let _c = || { | |
58 | let _a = match t { | |
59 | (t1, _) => t1, | |
60 | }; | |
61 | }; | |
62 | } | |
63 | ||
64 | fn test6() { | |
65 | let t = (String::new(), String::new()); | |
66 | let _c = || { | |
67 | let _a = match t { | |
68 | (_, t2) => t2, | |
69 | }; | |
70 | }; | |
71 | } | |
72 | ||
73 | fn test7() { | |
74 | let t = (String::new(), String::new()); | |
75 | let _c = || { | |
76 | let _a = match t { | |
77 | (t1, t2) => (t1, t2), | |
78 | }; | |
79 | }; | |
80 | } | |
81 | ||
82 | fn test8() { | |
83 | let x = 0; | |
84 | //~^ WARN unused variable: `x` | |
85 | let tup = (1, 2); | |
86 | //~^ WARN unused variable: `tup` | |
87 | let p = Point { x: 10, y: 20 }; | |
88 | ||
89 | let c = || { | |
90 | let _ = x; | |
91 | let Point { x, y } = p; | |
92 | //~^ WARN unused variable: `x` | |
93 | println!("{}", y); | |
94 | let (_, _) = tup; | |
95 | }; | |
96 | ||
97 | c(); | |
98 | } | |
99 | ||
100 | fn test9() { | |
101 | let _z = 9; | |
102 | let t = (String::from("Hello"), String::from("World")); | |
103 | ||
104 | let c = || { | |
105 | let (_, t) = t; | |
106 | println!("{}", t); | |
107 | }; | |
108 | ||
109 | c(); | |
110 | } | |
111 | ||
112 | fn main() { | |
113 | test1(); | |
114 | test2(); | |
115 | test3(); | |
116 | test4(); | |
117 | test5(); | |
118 | test6(); | |
119 | test7(); | |
120 | test8(); | |
121 | test9(); | |
122 | } |