1 error: you seem to be trying to use match for destructuring a single pattern. Consider using `if let`
2 --> $DIR/matches.rs:26:5
4 26 | / match ExprNode::Butterflies {
5 27 | | ExprNode::ExprAddrOf => Some(&NODE),
6 28 | | _ => { let x = 5; None },
8 | |_____^ help: try this: `if let ExprNode::ExprAddrOf = ExprNode::Butterflies { Some(&NODE) } else { let x = 5; None }`
10 = note: `-D single-match-else` implied by `-D warnings`
12 error: you seem to be trying to use match for destructuring a single pattern. Consider using `if let`
13 --> $DIR/matches.rs:35:5
16 36 | | Some(y) => { println!("{:?}", y); }
19 | |_____^ help: try this: `if let Some(y) = x { println!("{:?}", y); }`
21 = note: `-D single-match` implied by `-D warnings`
23 error: you seem to be trying to use match for destructuring a single pattern. Consider using `if let`
24 --> $DIR/matches.rs:41:5
27 42 | | (2...3, 7...9) => dummy(),
30 | |_____^ help: try this: `if let (2...3, 7...9) = z { dummy() }`
32 error: you seem to be trying to use match for destructuring a single pattern. Consider using `if let`
33 --> $DIR/matches.rs:63:5
36 64 | | Some(y) => dummy(),
39 | |_____^ help: try this: `if let Some(y) = x { dummy() }`
41 error: you seem to be trying to use match for destructuring a single pattern. Consider using `if let`
42 --> $DIR/matches.rs:68:5
45 69 | | Ok(y) => dummy(),
48 | |_____^ help: try this: `if let Ok(y) = y { dummy() }`
50 error: you seem to be trying to use match for destructuring a single pattern. Consider using `if let`
51 --> $DIR/matches.rs:75:5
54 76 | | Cow::Borrowed(..) => dummy(),
55 77 | | Cow::Owned(..) => (),
57 | |_____^ help: try this: `if let Cow::Borrowed(..) = c { dummy() }`
59 error: you seem to be trying to match on a boolean expression
60 --> $DIR/matches.rs:96:5
66 | |_____^ help: consider using an if/else expression: `if test { 0 } else { 42 }`
68 = note: `-D match-bool` implied by `-D warnings`
70 error: you seem to be trying to match on a boolean expression
71 --> $DIR/matches.rs:102:5
73 102 | / match option == 1 {
77 | |_____^ help: consider using an if/else expression: `if option == 1 { 1 } else { 0 }`
79 error: you seem to be trying to match on a boolean expression
80 --> $DIR/matches.rs:107:5
84 109 | | false => { println!("Noooo!"); }
86 | |_____^ help: consider using an if/else expression: `if !test { println!("Noooo!"); }`
88 error: you seem to be trying to match on a boolean expression
89 --> $DIR/matches.rs:112:5
92 113 | | false => { println!("Noooo!"); }
95 | |_____^ help: consider using an if/else expression: `if !test { println!("Noooo!"); }`
97 error: you seem to be trying to match on a boolean expression
98 --> $DIR/matches.rs:117:5
100 117 | / match test && test {
101 118 | | false => { println!("Noooo!"); }
104 | |_____^ help: consider using an if/else expression: `if !(test && test) { println!("Noooo!"); }`
106 error: equal expressions as operands to `&&`
107 --> $DIR/matches.rs:117:11
109 117 | match test && test {
112 = note: `-D eq-op` implied by `-D warnings`
114 error: you seem to be trying to match on a boolean expression
115 --> $DIR/matches.rs:122:5
118 123 | | false => { println!("Noooo!"); }
119 124 | | true => { println!("Yes!"); }
121 | |_____^ help: consider using an if/else expression: `if test { println!("Yes!"); } else { println!("Noooo!"); }`
123 error: you don't need to add `&` to all patterns
124 --> $DIR/matches.rs:138:9
127 139 | | &Some(v) => println!("{:?}", v),
128 140 | | &None => println!("none"),
132 = note: `-D match-ref-pats` implied by `-D warnings`
133 help: instead of prefixing all patterns with `&`, you can dereference the expression
136 139 | Some(v) => println!("{:?}", v),
137 140 | None => println!("none"),
140 error: you don't need to add `&` to all patterns
141 --> $DIR/matches.rs:148:5
144 149 | | &(v, 1) => println!("{}", v),
145 150 | | _ => println!("none"),
148 help: instead of prefixing all patterns with `&`, you can dereference the expression
151 149 | (v, 1) => println!("{}", v),
154 error: you don't need to add `&` to both the expression and the patterns
155 --> $DIR/matches.rs:154:5
158 155 | | &Some(v) => println!("{:?}", v),
159 156 | | &None => println!("none"),
165 155 | Some(v) => println!("{:?}", v),
166 156 | None => println!("none"),
169 error: you don't need to add `&` to all patterns
170 --> $DIR/matches.rs:165:5
172 165 | / if let &None = a {
173 166 | | println!("none");
176 help: instead of prefixing all patterns with `&`, you can dereference the expression
178 165 | if let None = *a {
181 error: you don't need to add `&` to both the expression and the patterns
182 --> $DIR/matches.rs:170:5
184 170 | / if let &None = &b {
185 171 | | println!("none");
190 170 | if let None = b {
193 error: some ranges overlap
194 --> $DIR/matches.rs:179:9
196 179 | 0 ... 10 => println!("0 ... 10"),
199 = note: `-D match-overlapping-arm` implied by `-D warnings`
200 note: overlaps with this
201 --> $DIR/matches.rs:180:9
203 180 | 0 ... 11 => println!("0 ... 11"),
206 error: some ranges overlap
207 --> $DIR/matches.rs:185:9
209 185 | 0 ... 5 => println!("0 ... 5"),
212 note: overlaps with this
213 --> $DIR/matches.rs:187:9
215 187 | FOO ... 11 => println!("0 ... 11"),
218 error: some ranges overlap
219 --> $DIR/matches.rs:193:9
221 193 | 0 ... 5 => println!("0 ... 5"),
224 note: overlaps with this
225 --> $DIR/matches.rs:192:9
227 192 | 2 => println!("2"),
230 error: some ranges overlap
231 --> $DIR/matches.rs:199:9
233 199 | 0 ... 2 => println!("0 ... 2"),
236 note: overlaps with this
237 --> $DIR/matches.rs:198:9
239 198 | 2 => println!("2"),
242 error: some ranges overlap
243 --> $DIR/matches.rs:222:9
245 222 | 0 .. 11 => println!("0 .. 11"),
248 note: overlaps with this
249 --> $DIR/matches.rs:223:9
251 223 | 0 ... 11 => println!("0 ... 11"),
254 error: Err(_) will match all errors, maybe not a good idea
255 --> $DIR/matches.rs:240:9
257 240 | Err(_) => panic!("err")
260 = note: `-D match-wild-err-arm` implied by `-D warnings`
261 = note: to remove this warning, match each error seperately or use unreachable macro
263 error: this `match` has identical arm bodies
264 --> $DIR/matches.rs:239:18
266 239 | Ok(_) => println!("ok"),
269 = note: `-D match-same-arms` implied by `-D warnings`
271 --> $DIR/matches.rs:238:18
273 238 | Ok(3) => println!("ok"),
275 note: consider refactoring into `Ok(3) | Ok(_)`
276 --> $DIR/matches.rs:238:18
278 238 | Ok(3) => println!("ok"),
280 = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
282 error: Err(_) will match all errors, maybe not a good idea
283 --> $DIR/matches.rs:246:9
285 246 | Err(_) => {panic!()}
288 = note: to remove this warning, match each error seperately or use unreachable macro
290 error: this `match` has identical arm bodies
291 --> $DIR/matches.rs:245:18
293 245 | Ok(_) => println!("ok"),
297 --> $DIR/matches.rs:244:18
299 244 | Ok(3) => println!("ok"),
301 note: consider refactoring into `Ok(3) | Ok(_)`
302 --> $DIR/matches.rs:244:18
304 244 | Ok(3) => println!("ok"),
306 = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
308 error: Err(_) will match all errors, maybe not a good idea
309 --> $DIR/matches.rs:252:9
311 252 | Err(_) => {panic!();}
314 = note: to remove this warning, match each error seperately or use unreachable macro
316 error: this `match` has identical arm bodies
317 --> $DIR/matches.rs:251:18
319 251 | Ok(_) => println!("ok"),
323 --> $DIR/matches.rs:250:18
325 250 | Ok(3) => println!("ok"),
327 note: consider refactoring into `Ok(3) | Ok(_)`
328 --> $DIR/matches.rs:250:18
330 250 | Ok(3) => println!("ok"),
332 = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
334 error: this `match` has identical arm bodies
335 --> $DIR/matches.rs:258:18
337 258 | Ok(_) => println!("ok"),
341 --> $DIR/matches.rs:257:18
343 257 | Ok(3) => println!("ok"),
345 note: consider refactoring into `Ok(3) | Ok(_)`
346 --> $DIR/matches.rs:257:18
348 257 | Ok(3) => println!("ok"),
350 = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
352 error: this `match` has identical arm bodies
353 --> $DIR/matches.rs:265:18
355 265 | Ok(_) => println!("ok"),
359 --> $DIR/matches.rs:264:18
361 264 | Ok(3) => println!("ok"),
363 note: consider refactoring into `Ok(3) | Ok(_)`
364 --> $DIR/matches.rs:264:18
366 264 | Ok(3) => println!("ok"),
368 = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
370 error: this `match` has identical arm bodies
371 --> $DIR/matches.rs:271:18
373 271 | Ok(_) => println!("ok"),
377 --> $DIR/matches.rs:270:18
379 270 | Ok(3) => println!("ok"),
381 note: consider refactoring into `Ok(3) | Ok(_)`
382 --> $DIR/matches.rs:270:18
384 270 | Ok(3) => println!("ok"),
386 = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
388 error: this `match` has identical arm bodies
389 --> $DIR/matches.rs:277:18
391 277 | Ok(_) => println!("ok"),
395 --> $DIR/matches.rs:276:18
397 276 | Ok(3) => println!("ok"),
399 note: consider refactoring into `Ok(3) | Ok(_)`
400 --> $DIR/matches.rs:276:18
402 276 | Ok(3) => println!("ok"),
404 = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
406 error: this `match` has identical arm bodies
407 --> $DIR/matches.rs:298:29
409 298 | (Ok(_), Some(x)) => println!("ok {}", x),
410 | ^^^^^^^^^^^^^^^^^^^^
413 --> $DIR/matches.rs:297:29
415 297 | (Ok(x), Some(_)) => println!("ok {}", x),
416 | ^^^^^^^^^^^^^^^^^^^^
417 note: consider refactoring into `(Ok(x), Some(_)) | (Ok(_), Some(x))`
418 --> $DIR/matches.rs:297:29
420 297 | (Ok(x), Some(_)) => println!("ok {}", x),
421 | ^^^^^^^^^^^^^^^^^^^^
422 = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
424 error: this `match` has identical arm bodies
425 --> $DIR/matches.rs:313:18
427 313 | Ok(_) => println!("ok"),
431 --> $DIR/matches.rs:312:18
433 312 | Ok(3) => println!("ok"),
435 note: consider refactoring into `Ok(3) | Ok(_)`
436 --> $DIR/matches.rs:312:18
438 312 | Ok(3) => println!("ok"),
440 = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
442 error: use as_ref() instead
443 --> $DIR/matches.rs:320:33
445 320 | let borrowed: Option<&()> = match owned {
446 | _________________________________^
447 321 | | None => None,
448 322 | | Some(ref v) => Some(v),
450 | |_____^ help: try this: `owned.as_ref()`
452 = note: `-D match-as-ref` implied by `-D warnings`
454 error: use as_mut() instead
455 --> $DIR/matches.rs:326:39
457 326 | let borrow_mut: Option<&mut ()> = match mut_owned {
458 | _______________________________________^
459 327 | | None => None,
460 328 | | Some(ref mut v) => Some(v),
462 | |_____^ help: try this: `mut_owned.as_mut()`
464 error: aborting due to 37 previous errors