src/tools/clippy/tests/ui/matches.stderr

   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
   3    |
   4 26 | /     match ExprNode::Butterflies {
   5 27 | |         ExprNode::ExprAddrOf => Some(&NODE),
   6 28 | |         _ => { let x = 5; None },
   7 29 | |     }
   8    | |_____^ help: try this: `if let ExprNode::ExprAddrOf = ExprNode::Butterflies { Some(&NODE) } else { let x = 5; None }`
   9    |
  10    = note: `-D single-match-else` implied by `-D warnings`
  11
  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
  14    |
  15 35 | /     match x {
  16 36 | |         Some(y) => { println!("{:?}", y); }
  17 37 | |         _ => ()
  18 38 | |     };
  19    | |_____^ help: try this: `if let Some(y) = x { println!("{:?}", y); }`
  20    |
  21    = note: `-D single-match` implied by `-D warnings`
  22
  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
  25    |
  26 41 | /     match z {
  27 42 | |         (2...3, 7...9) => dummy(),
  28 43 | |         _ => {}
  29 44 | |     };
  30    | |_____^ help: try this: `if let (2...3, 7...9) = z { dummy() }`
  31
  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
  34    |
  35 63 | /     match x {
  36 64 | |         Some(y) => dummy(),
  37 65 | |         None => ()
  38 66 | |     };
  39    | |_____^ help: try this: `if let Some(y) = x { dummy() }`
  40
  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
  43    |
  44 68 | /     match y {
  45 69 | |         Ok(y) => dummy(),
  46 70 | |         Err(..) => ()
  47 71 | |     };
  48    | |_____^ help: try this: `if let Ok(y) = y { dummy() }`
  49
  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
  52    |
  53 75 | /     match c {
  54 76 | |         Cow::Borrowed(..) => dummy(),
  55 77 | |         Cow::Owned(..) => (),
  56 78 | |     };
  57    | |_____^ help: try this: `if let Cow::Borrowed(..) = c { dummy() }`
  58
  59 error: you seem to be trying to match on a boolean expression
  60   --> $DIR/matches.rs:96:5
  61    |
  62 96 | /     match test {
  63 97 | |         true => 0,
  64 98 | |         false => 42,
  65 99 | |     };
  66    | |_____^ help: consider using an if/else expression: `if test { 0 } else { 42 }`
  67    |
  68    = note: `-D match-bool` implied by `-D warnings`
  69
  70 error: you seem to be trying to match on a boolean expression
  71    --> $DIR/matches.rs:102:5
  72     |
  73 102 | /     match option == 1 {
  74 103 | |         true => 1,
  75 104 | |         false => 0,
  76 105 | |     };
  77     | |_____^ help: consider using an if/else expression: `if option == 1 { 1 } else { 0 }`
  78
  79 error: you seem to be trying to match on a boolean expression
  80    --> $DIR/matches.rs:107:5
  81     |
  82 107 | /     match test {
  83 108 | |         true => (),
  84 109 | |         false => { println!("Noooo!"); }
  85 110 | |     };
  86     | |_____^ help: consider using an if/else expression: `if !test { println!("Noooo!"); }`
  87
  88 error: you seem to be trying to match on a boolean expression
  89    --> $DIR/matches.rs:112:5
  90     |
  91 112 | /     match test {
  92 113 | |         false => { println!("Noooo!"); }
  93 114 | |         _ => (),
  94 115 | |     };
  95     | |_____^ help: consider using an if/else expression: `if !test { println!("Noooo!"); }`
  96
  97 error: you seem to be trying to match on a boolean expression
  98    --> $DIR/matches.rs:117:5
  99     |
 100 117 | /     match test && test {
 101 118 | |         false => { println!("Noooo!"); }
 102 119 | |         _ => (),
 103 120 | |     };
 104     | |_____^ help: consider using an if/else expression: `if !(test && test) { println!("Noooo!"); }`
 105
 106 error: equal expressions as operands to `&&`
 107    --> $DIR/matches.rs:117:11
 108     |
 109 117 |     match test && test {
 110     |           ^^^^^^^^^^^^
 111     |
 112     = note: `-D eq-op` implied by `-D warnings`
 113
 114 error: you seem to be trying to match on a boolean expression
 115    --> $DIR/matches.rs:122:5
 116     |
 117 122 | /     match test {
 118 123 | |         false => { println!("Noooo!"); }
 119 124 | |         true => { println!("Yes!"); }
 120 125 | |     };
 121     | |_____^ help: consider using an if/else expression: `if test { println!("Yes!"); } else { println!("Noooo!"); }`
 122
 123 error: you don't need to add `&` to all patterns
 124    --> $DIR/matches.rs:138:9
 125     |
 126 138 | /         match v {
 127 139 | |             &Some(v) => println!("{:?}", v),
 128 140 | |             &None => println!("none"),
 129 141 | |         }
 130     | |_________^
 131     |
 132     = note: `-D match-ref-pats` implied by `-D warnings`
 133 help: instead of prefixing all patterns with `&`, you can dereference the expression
 134     |
 135 138 |         match *v { .. }
 136     |
 137
 138 error: you don't need to add `&` to all patterns
 139    --> $DIR/matches.rs:148:5
 140     |
 141 148 | /     match tup {
 142 149 | |         &(v, 1) => println!("{}", v),
 143 150 | |         _ => println!("none"),
 144 151 | |     }
 145     | |_____^
 146     |
 147 help: instead of prefixing all patterns with `&`, you can dereference the expression
 148     |
 149 148 |     match *tup { .. }
 150     |
 151
 152 error: you don't need to add `&` to both the expression and the patterns
 153    --> $DIR/matches.rs:154:5
 154     |
 155 154 | /     match &w {
 156 155 | |         &Some(v) => println!("{:?}", v),
 157 156 | |         &None => println!("none"),
 158 157 | |     }
 159     | |_____^ help: try: `match w { .. }`
 160
 161 error: you don't need to add `&` to all patterns
 162    --> $DIR/matches.rs:165:5
 163     |
 164 165 | /     if let &None = a {
 165 166 | |         println!("none");
 166 167 | |     }
 167     | |_____^
 168     |
 169 help: instead of prefixing all patterns with `&`, you can dereference the expression
 170     |
 171 165 |     if let .. = *a { .. }
 172     |
 173
 174 error: you don't need to add `&` to both the expression and the patterns
 175    --> $DIR/matches.rs:170:5
 176     |
 177 170 | /     if let &None = &b {
 178 171 | |         println!("none");
 179 172 | |     }
 180     | |_____^ help: try: `if let .. = b { .. }`
 181
 182 error: some ranges overlap
 183    --> $DIR/matches.rs:179:9
 184     |
 185 179 |         0 ... 10 => println!("0 ... 10"),
 186     |         ^^^^^^^^
 187     |
 188     = note: `-D match-overlapping-arm` implied by `-D warnings`
 189 note: overlaps with this
 190    --> $DIR/matches.rs:180:9
 191     |
 192 180 |         0 ... 11 => println!("0 ... 11"),
 193     |         ^^^^^^^^
 194
 195 error: some ranges overlap
 196    --> $DIR/matches.rs:185:9
 197     |
 198 185 |         0 ... 5 => println!("0 ... 5"),
 199     |         ^^^^^^^
 200     |
 201 note: overlaps with this
 202    --> $DIR/matches.rs:187:9
 203     |
 204 187 |         FOO ... 11 => println!("0 ... 11"),
 205     |         ^^^^^^^^^^
 206
 207 error: some ranges overlap
 208    --> $DIR/matches.rs:193:9
 209     |
 210 193 |         0 ... 5 => println!("0 ... 5"),
 211     |         ^^^^^^^
 212     |
 213 note: overlaps with this
 214    --> $DIR/matches.rs:192:9
 215     |
 216 192 |         2 => println!("2"),
 217     |         ^
 218
 219 error: some ranges overlap
 220    --> $DIR/matches.rs:199:9
 221     |
 222 199 |         0 ... 2 => println!("0 ... 2"),
 223     |         ^^^^^^^
 224     |
 225 note: overlaps with this
 226    --> $DIR/matches.rs:198:9
 227     |
 228 198 |         2 => println!("2"),
 229     |         ^
 230
 231 error: some ranges overlap
 232    --> $DIR/matches.rs:222:9
 233     |
 234 222 |         0 .. 11 => println!("0 .. 11"),
 235     |         ^^^^^^^
 236     |
 237 note: overlaps with this
 238    --> $DIR/matches.rs:223:9
 239     |
 240 223 |         0 ... 11 => println!("0 ... 11"),
 241     |         ^^^^^^^^
 242
 243 error: Err(_) will match all errors, maybe not a good idea
 244    --> $DIR/matches.rs:240:9
 245     |
 246 240 |         Err(_) => panic!("err")
 247     |         ^^^^^^
 248     |
 249     = note: `-D match-wild-err-arm` implied by `-D warnings`
 250     = note: to remove this warning, match each error seperately or use unreachable macro
 251
 252 error: this `match` has identical arm bodies
 253    --> $DIR/matches.rs:239:18
 254     |
 255 239 |         Ok(_) => println!("ok"),
 256     |                  ^^^^^^^^^^^^^^
 257     |
 258     = note: `-D match-same-arms` implied by `-D warnings`
 259 note: same as this
 260    --> $DIR/matches.rs:238:18
 261     |
 262 238 |         Ok(3) => println!("ok"),
 263     |                  ^^^^^^^^^^^^^^
 264 note: consider refactoring into `Ok(3) | Ok(_)`
 265    --> $DIR/matches.rs:238:18
 266     |
 267 238 |         Ok(3) => println!("ok"),
 268     |                  ^^^^^^^^^^^^^^
 269     = note: this error originates in a macro outside of the current crate
 270
 271 error: Err(_) will match all errors, maybe not a good idea
 272    --> $DIR/matches.rs:246:9
 273     |
 274 246 |         Err(_) => {panic!()}
 275     |         ^^^^^^
 276     |
 277     = note: to remove this warning, match each error seperately or use unreachable macro
 278
 279 error: this `match` has identical arm bodies
 280    --> $DIR/matches.rs:245:18
 281     |
 282 245 |         Ok(_) => println!("ok"),
 283     |                  ^^^^^^^^^^^^^^
 284     |
 285 note: same as this
 286    --> $DIR/matches.rs:244:18
 287     |
 288 244 |         Ok(3) => println!("ok"),
 289     |                  ^^^^^^^^^^^^^^
 290 note: consider refactoring into `Ok(3) | Ok(_)`
 291    --> $DIR/matches.rs:244:18
 292     |
 293 244 |         Ok(3) => println!("ok"),
 294     |                  ^^^^^^^^^^^^^^
 295     = note: this error originates in a macro outside of the current crate
 296
 297 error: Err(_) will match all errors, maybe not a good idea
 298    --> $DIR/matches.rs:252:9
 299     |
 300 252 |         Err(_) => {panic!();}
 301     |         ^^^^^^
 302     |
 303     = note: to remove this warning, match each error seperately or use unreachable macro
 304
 305 error: this `match` has identical arm bodies
 306    --> $DIR/matches.rs:251:18
 307     |
 308 251 |         Ok(_) => println!("ok"),
 309     |                  ^^^^^^^^^^^^^^
 310     |
 311 note: same as this
 312    --> $DIR/matches.rs:250:18
 313     |
 314 250 |         Ok(3) => println!("ok"),
 315     |                  ^^^^^^^^^^^^^^
 316 note: consider refactoring into `Ok(3) | Ok(_)`
 317    --> $DIR/matches.rs:250:18
 318     |
 319 250 |         Ok(3) => println!("ok"),
 320     |                  ^^^^^^^^^^^^^^
 321     = note: this error originates in a macro outside of the current crate
 322
 323 error: this `match` has identical arm bodies
 324    --> $DIR/matches.rs:258:18
 325     |
 326 258 |         Ok(_) => println!("ok"),
 327     |                  ^^^^^^^^^^^^^^
 328     |
 329 note: same as this
 330    --> $DIR/matches.rs:257:18
 331     |
 332 257 |         Ok(3) => println!("ok"),
 333     |                  ^^^^^^^^^^^^^^
 334 note: consider refactoring into `Ok(3) | Ok(_)`
 335    --> $DIR/matches.rs:257:18
 336     |
 337 257 |         Ok(3) => println!("ok"),
 338     |                  ^^^^^^^^^^^^^^
 339     = note: this error originates in a macro outside of the current crate
 340
 341 error: this `match` has identical arm bodies
 342    --> $DIR/matches.rs:265:18
 343     |
 344 265 |         Ok(_) => println!("ok"),
 345     |                  ^^^^^^^^^^^^^^
 346     |
 347 note: same as this
 348    --> $DIR/matches.rs:264:18
 349     |
 350 264 |         Ok(3) => println!("ok"),
 351     |                  ^^^^^^^^^^^^^^
 352 note: consider refactoring into `Ok(3) | Ok(_)`
 353    --> $DIR/matches.rs:264:18
 354     |
 355 264 |         Ok(3) => println!("ok"),
 356     |                  ^^^^^^^^^^^^^^
 357     = note: this error originates in a macro outside of the current crate
 358
 359 error: this `match` has identical arm bodies
 360    --> $DIR/matches.rs:271:18
 361     |
 362 271 |         Ok(_) => println!("ok"),
 363     |                  ^^^^^^^^^^^^^^
 364     |
 365 note: same as this
 366    --> $DIR/matches.rs:270:18
 367     |
 368 270 |         Ok(3) => println!("ok"),
 369     |                  ^^^^^^^^^^^^^^
 370 note: consider refactoring into `Ok(3) | Ok(_)`
 371    --> $DIR/matches.rs:270:18
 372     |
 373 270 |         Ok(3) => println!("ok"),
 374     |                  ^^^^^^^^^^^^^^
 375     = note: this error originates in a macro outside of the current crate
 376
 377 error: this `match` has identical arm bodies
 378    --> $DIR/matches.rs:277:18
 379     |
 380 277 |         Ok(_) => println!("ok"),
 381     |                  ^^^^^^^^^^^^^^
 382     |
 383 note: same as this
 384    --> $DIR/matches.rs:276:18
 385     |
 386 276 |         Ok(3) => println!("ok"),
 387     |                  ^^^^^^^^^^^^^^
 388 note: consider refactoring into `Ok(3) | Ok(_)`
 389    --> $DIR/matches.rs:276:18
 390     |
 391 276 |         Ok(3) => println!("ok"),
 392     |                  ^^^^^^^^^^^^^^
 393     = note: this error originates in a macro outside of the current crate
 394