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8bb4bdeb | 1 | // Copyright 2017 The Rust Project Developers. See the COPYRIGHT |
223e47cc LB |
2 | // file at the top-level directory of this distribution and at |
3 | // http://rust-lang.org/COPYRIGHT. | |
4 | // | |
5 | // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or | |
6 | // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license | |
7 | // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your | |
8 | // option. This file may not be copied, modified, or distributed | |
9 | // except according to those terms. | |
10 | ||
2c00a5a8 XL |
11 | // ignore-tidy-tab |
12 | ||
abe05a73 | 13 | #![warn(unused_mut, unused_parens)] // UI tests pass `-A unused`—see Issue #43896 |
ea8adc8c | 14 | #![feature(no_debug)] |
3b2f2976 | 15 | |
8faf50e0 | 16 | #[no_mangle] static SHENZHOU: usize = 1; |
ff7c6d11 | 17 | //~^ WARN static is marked #[no_mangle] |
8faf50e0 XL |
18 | //~| HELP try making it public |
19 | #[no_mangle] const DISCOVERY: usize = 1; | |
ff7c6d11 | 20 | //~^ ERROR const items should never be #[no_mangle] |
8faf50e0 | 21 | //~| HELP try a static value |
abe05a73 | 22 | |
8faf50e0 XL |
23 | #[no_mangle] |
24 | //~^ HELP remove this attribute | |
abe05a73 | 25 | pub fn defiant<T>(_t: T) {} |
ff7c6d11 | 26 | //~^ WARN functions generic over types must be mangled |
abe05a73 XL |
27 | |
28 | #[no_mangle] | |
8faf50e0 | 29 | fn rio_grande() {} |
ff7c6d11 | 30 | //~^ WARN function is marked |
8faf50e0 | 31 | //~| HELP try making it public |
abe05a73 | 32 | |
2c00a5a8 XL |
33 | mod badlands { |
34 | // The private-no-mangle lints shouldn't suggest inserting `pub` when the | |
35 | // item is already `pub` (but triggered the lint because, e.g., it's in a | |
36 | // private module). (Issue #47383) | |
37 | #[no_mangle] pub static DAUNTLESS: bool = true; | |
38 | //~^ WARN static is marked | |
8faf50e0 | 39 | //~| HELP try exporting the item with a `pub use` statement |
2c00a5a8 XL |
40 | #[no_mangle] pub fn val_jean() {} |
41 | //~^ WARN function is marked | |
8faf50e0 XL |
42 | //~| HELP try exporting the item with a `pub use` statement |
43 | ||
44 | // ... but we can suggest just-`pub` instead of restricted | |
45 | #[no_mangle] pub(crate) static VETAR: bool = true; | |
46 | //~^ WARN static is marked | |
47 | //~| HELP try making it public | |
48 | #[no_mangle] pub(crate) fn crossfield() {} | |
49 | //~^ WARN function is marked | |
50 | //~| HELP try making it public | |
2c00a5a8 XL |
51 | } |
52 | ||
abe05a73 XL |
53 | struct Equinox { |
54 | warp_factor: f32, | |
55 | } | |
56 | ||
ea8adc8c | 57 | #[no_debug] // should suggest removal of deprecated attribute |
ff7c6d11 | 58 | //~^ WARN deprecated |
8faf50e0 | 59 | //~| HELP remove this attribute |
7453a54e | 60 | fn main() { |
8faf50e0 | 61 | while true { |
ff7c6d11 | 62 | //~^ WARN denote infinite loops |
8faf50e0 XL |
63 | //~| HELP use `loop` |
64 | let mut a = (1); | |
ff7c6d11 | 65 | //~^ WARN does not need to be mutable |
8faf50e0 | 66 | //~| HELP remove this `mut` |
ff7c6d11 | 67 | //~| WARN unnecessary parentheses |
8faf50e0 | 68 | //~| HELP remove these parentheses |
2c00a5a8 XL |
69 | // the line after `mut` has a `\t` at the beginning, this is on purpose |
70 | let mut | |
71 | b = 1; | |
72 | //~^^ WARN does not need to be mutable | |
8faf50e0 | 73 | //~| HELP remove this `mut` |
abe05a73 XL |
74 | let d = Equinox { warp_factor: 9.975 }; |
75 | match d { | |
8faf50e0 | 76 | Equinox { warp_factor: warp_factor } => {} |
ff7c6d11 | 77 | //~^ WARN this pattern is redundant |
8faf50e0 | 78 | //~| HELP remove this |
abe05a73 | 79 | } |
2c00a5a8 | 80 | println!("{} {}", a, b); |
ea8adc8c | 81 | } |
223e47cc | 82 | } |