projects / rustc.git / blame
| Commit | Line | Data |
|---|---|---|
| ea8adc8c | 1 | #![feature(plugin, custom_attribute)] |
| abe05a73 | 2 | |
| ea8adc8c XL |
3 | #![allow(clippy)] |
| 4 | #![warn(cyclomatic_complexity)] | |
| 5 | #![allow(unused)] | |
| 6 | ||
| 7 | fn main() { | |
| 8 | if true { | |
| 9 | println!("a"); | |
| 10 | } | |
| 11 | if true { | |
| 12 | println!("a"); | |
| 13 | } | |
| 14 | if true { | |
| 15 | println!("a"); | |
| 16 | } | |
| 17 | if true { | |
| 18 | println!("a"); | |
| 19 | } | |
| 20 | if true { | |
| 21 | println!("a"); | |
| 22 | } | |
| 23 | if true { | |
| 24 | println!("a"); | |
| 25 | } | |
| 26 | if true { | |
| 27 | println!("a"); | |
| 28 | } | |
| 29 | if true { | |
| 30 | println!("a"); | |
| 31 | } | |
| 32 | if true { | |
| 33 | println!("a"); | |
| 34 | } | |
| 35 | if true { | |
| 36 | println!("a"); | |
| 37 | } | |
| 38 | if true { | |
| 39 | println!("a"); | |
| 40 | } | |
| 41 | if true { | |
| 42 | println!("a"); | |
| 43 | } | |
| 44 | if true { | |
| 45 | println!("a"); | |
| 46 | } | |
| 47 | if true { | |
| 48 | println!("a"); | |
| 49 | } | |
| 50 | if true { | |
| 51 | println!("a"); | |
| 52 | } | |
| 53 | if true { | |
| 54 | println!("a"); | |
| 55 | } | |
| 56 | if true { | |
| 57 | println!("a"); | |
| 58 | } | |
| 59 | if true { | |
| 60 | println!("a"); | |
| 61 | } | |
| 62 | if true { | |
| 63 | println!("a"); | |
| 64 | } | |
| 65 | if true { | |
| 66 | println!("a"); | |
| 67 | } | |
| 68 | if true { | |
| 69 | println!("a"); | |
| 70 | } | |
| 71 | if true { | |
| 72 | println!("a"); | |
| 73 | } | |
| 74 | if true { | |
| 75 | println!("a"); | |
| 76 | } | |
| 77 | if true { | |
| 78 | println!("a"); | |
| 79 | } | |
| 80 | if true { | |
| 81 | println!("a"); | |
| 82 | } | |
| 83 | if true { | |
| 84 | println!("a"); | |
| 85 | } | |
| 86 | if true { | |
| 87 | println!("a"); | |
| 88 | } | |
| 89 | } | |
| 90 | ||
| 91 | #[cyclomatic_complexity = "0"] | |
| 92 | fn kaboom() { | |
| 93 | let n = 0; | |
| 94 | 'a: for i in 0..20 { | |
| 95 | 'b: for j in i..20 { | |
| 96 | for k in j..20 { | |
| 97 | if k == 5 { | |
| 98 | break 'b; | |
| 99 | } | |
| 100 | if j == 3 && k == 6 { | |
| 101 | continue 'a; | |
| 102 | } | |
| 103 | if k == j { | |
| 104 | continue; | |
| 105 | } | |
| 106 | println!("bake"); | |
| 107 | } | |
| 108 | } | |
| 109 | println!("cake"); | |
| 110 | } | |
| 111 | } | |
| 112 | ||
| 113 | fn bloo() { | |
| 114 | match 42 { | |
| 115 | 0 => println!("hi"), | |
| 116 | 1 => println!("hai"), | |
| 117 | 2 => println!("hey"), | |
| 118 | 3 => println!("hallo"), | |
| 119 | 4 => println!("hello"), | |
| 120 | 5 => println!("salut"), | |
| 121 | 6 => println!("good morning"), | |
| 122 | 7 => println!("good evening"), | |
| 123 | 8 => println!("good afternoon"), | |
| 124 | 9 => println!("good night"), | |
| 125 | 10 => println!("bonjour"), | |
| 126 | 11 => println!("hej"), | |
| 127 | 12 => println!("hej hej"), | |
| 128 | 13 => println!("greetings earthling"), | |
| 129 | 14 => println!("take us to you leader"), | |
| 130 | 15 | 17 | 19 | 21 | 23 | 25 | 27 | 29 | 31 | 33 => println!("take us to you leader"), | |
| 131 | 35 | 37 | 39 | 41 | 43 | 45 | 47 | 49 | 51 | 53 => println!("there is no undefined behavior"), | |
| 132 | 55 | 57 | 59 | 61 | 63 | 65 | 67 | 69 | 71 | 73 => println!("I know borrow-fu"), | |
| 133 | _ => println!("bye"), | |
| 134 | } | |
| 135 | } | |
| 136 | ||
| 137 | #[cyclomatic_complexity = "0"] | |
| 138 | fn lots_of_short_circuits() -> bool { | |
| 139 | true && false && true && false && true && false && true | |
| 140 | } | |
| 141 | ||
| 142 | #[cyclomatic_complexity = "0"] | |
| 143 | fn lots_of_short_circuits2() -> bool { | |
| 144 | true || false || true || false || true || false || true | |
| 145 | } | |
| 146 | ||
| 147 | #[cyclomatic_complexity = "0"] | |
| 148 | fn baa() { | |
| 149 | let x = || match 99 { | |
| 150 | 0 => 0, | |
| 151 | 1 => 1, | |
| 152 | 2 => 2, | |
| 153 | 4 => 4, | |
| 154 | 6 => 6, | |
| 155 | 9 => 9, | |
| 156 | _ => 42, | |
| 157 | }; | |
| 158 | if x() == 42 { | |
| 159 | println!("x"); | |
| 160 | } else { | |
| 161 | println!("not x"); | |
| 162 | } | |
| 163 | } | |
| 164 | ||
| 165 | #[cyclomatic_complexity = "0"] | |
| 166 | fn bar() { | |
| 167 | match 99 { | |
| 168 | 0 => println!("hi"), | |
| 169 | _ => println!("bye"), | |
| 170 | } | |
| 171 | } | |
| 172 | ||
| 173 | #[test] | |
| 174 | #[cyclomatic_complexity = "0"] | |
| 175 | /// Tests are usually complex but simple at the same time. `cyclomatic_complexity` used to give | |
| 176 | /// lots of false-positives in tests. | |
| 177 | fn dont_warn_on_tests() { | |
| 178 | match 99 { | |
| 179 | 0 => println!("hi"), | |
| 180 | _ => println!("bye"), | |
| 181 | } | |
| 182 | } | |
| 183 | ||
| 184 | #[cyclomatic_complexity = "0"] | |
| 185 | fn barr() { | |
| 186 | match 99 { | |
| 187 | 0 => println!("hi"), | |
| 188 | 1 => println!("bla"), | |
| 189 | 2 | 3 => println!("blub"), | |
| 190 | _ => println!("bye"), | |
| 191 | } | |
| 192 | } | |
| 193 | ||
| 194 | #[cyclomatic_complexity = "0"] | |
| 195 | fn barr2() { | |
| 196 | match 99 { | |
| 197 | 0 => println!("hi"), | |
| 198 | 1 => println!("bla"), | |
| 199 | 2 | 3 => println!("blub"), | |
| 200 | _ => println!("bye"), | |
| 201 | } | |
| 202 | match 99 { | |
| 203 | 0 => println!("hi"), | |
| 204 | 1 => println!("bla"), | |
| 205 | 2 | 3 => println!("blub"), | |
| 206 | _ => println!("bye"), | |
| 207 | } | |
| 208 | } | |
| 209 | ||
| 210 | #[cyclomatic_complexity = "0"] | |
| 211 | fn barrr() { | |
| 212 | match 99 { | |
| 213 | 0 => println!("hi"), | |
| 214 | 1 => panic!("bla"), | |
| 215 | 2 | 3 => println!("blub"), | |
| 216 | _ => println!("bye"), | |
| 217 | } | |
| 218 | } | |
| 219 | ||
| 220 | #[cyclomatic_complexity = "0"] | |
| 221 | fn barrr2() { | |
| 222 | match 99 { | |
| 223 | 0 => println!("hi"), | |
| 224 | 1 => panic!("bla"), | |
| 225 | 2 | 3 => println!("blub"), | |
| 226 | _ => println!("bye"), | |
| 227 | } | |
| 228 | match 99 { | |
| 229 | 0 => println!("hi"), | |
| 230 | 1 => panic!("bla"), | |
| 231 | 2 | 3 => println!("blub"), | |
| 232 | _ => println!("bye"), | |
| 233 | } | |
| 234 | } | |
| 235 | ||
| 236 | #[cyclomatic_complexity = "0"] | |
| 237 | fn barrrr() { | |
| 238 | match 99 { | |
| 239 | 0 => println!("hi"), | |
| 240 | 1 => println!("bla"), | |
| 241 | 2 | 3 => panic!("blub"), | |
| 242 | _ => println!("bye"), | |
| 243 | } | |
| 244 | } | |
| 245 | ||
| 246 | #[cyclomatic_complexity = "0"] | |
| 247 | fn barrrr2() { | |
| 248 | match 99 { | |
| 249 | 0 => println!("hi"), | |
| 250 | 1 => println!("bla"), | |
| 251 | 2 | 3 => panic!("blub"), | |
| 252 | _ => println!("bye"), | |
| 253 | } | |
| 254 | match 99 { | |
| 255 | 0 => println!("hi"), | |
| 256 | 1 => println!("bla"), | |
| 257 | 2 | 3 => panic!("blub"), | |
| 258 | _ => println!("bye"), | |
| 259 | } | |
| 260 | } | |
| 261 | ||
| 262 | #[cyclomatic_complexity = "0"] | |
| 263 | fn cake() { | |
| 264 | if 4 == 5 { | |
| 265 | println!("yea"); | |
| 266 | } else { | |
| 267 | panic!("meh"); | |
| 268 | } | |
| 269 | println!("whee"); | |
| 270 | } | |
| 271 | ||
| 272 | ||
| 273 | #[cyclomatic_complexity = "0"] | |
| 274 | pub fn read_file(input_path: &str) -> String { | |
| 275 | use std::fs::File; | |
| 276 | use std::io::{Read, Write}; | |
| 277 | use std::path::Path; | |
| 278 | let mut file = match File::open(&Path::new(input_path)) { | |
| 279 | Ok(f) => f, | |
| 280 | Err(err) => { | |
| 281 | panic!("Can't open {}: {}", input_path, err); | |
| 282 | } | |
| 283 | }; | |
| 284 | ||
| 285 | let mut bytes = Vec::new(); | |
| 286 | ||
| 287 | match file.read_to_end(&mut bytes) { | |
| 288 | Ok(..) => {}, | |
| 289 | Err(_) => { | |
| 290 | panic!("Can't read {}", input_path); | |
| 291 | } | |
| 292 | }; | |
| 293 | ||
| 294 | match String::from_utf8(bytes) { | |
| 295 | Ok(contents) => contents, | |
| 296 | Err(_) => { | |
| 297 | panic!("{} is not UTF-8 encoded", input_path); | |
| 298 | } | |
| 299 | } | |
| 300 | } | |
| 301 | ||
| 302 | enum Void {} | |
| 303 | ||
| 304 | #[cyclomatic_complexity = "0"] | |
| 305 | fn void(void: Void) { | |
| 306 | if true { | |
| 307 | match void { | |
| 308 | } | |
| 309 | } | |
| 310 | } | |
| 311 | ||
| 312 | #[cyclomatic_complexity = "0"] | |
| 313 | fn mcarton_sees_all() { | |
| 314 | panic!("meh"); | |
| 315 | panic!("möh"); | |
| 316 | } | |
| 317 | ||
| 318 | #[cyclomatic_complexity = "0"] | |
| 319 | fn try() -> Result<i32, &'static str> { | |
| 320 | match 5 { | |
| 321 | 5 => Ok(5), | |
| 322 | _ => return Err("bla"), | |
| 323 | } | |
| 324 | } | |
| 325 | ||
| 326 | #[cyclomatic_complexity = "0"] | |
| 327 | fn try_again() -> Result<i32, &'static str> { | |
| 328 | let _ = try!(Ok(42)); | |
| 329 | let _ = try!(Ok(43)); | |
| 330 | let _ = try!(Ok(44)); | |
| 331 | let _ = try!(Ok(45)); | |
| 332 | let _ = try!(Ok(46)); | |
| 333 | let _ = try!(Ok(47)); | |
| 334 | let _ = try!(Ok(48)); | |
| 335 | let _ = try!(Ok(49)); | |
| 336 | match 5 { | |
| 337 | 5 => Ok(5), | |
| 338 | _ => return Err("bla"), | |
| 339 | } | |
| 340 | } | |
| 341 | ||
| 342 | #[cyclomatic_complexity = "0"] | |
| 343 | fn early() -> Result<i32, &'static str> { | |
| 344 | return Ok(5); | |
| 345 | return Ok(5); | |
| 346 | return Ok(5); | |
| 347 | return Ok(5); | |
| 348 | return Ok(5); | |
| 349 | return Ok(5); | |
| 350 | return Ok(5); | |
| 351 | return Ok(5); | |
| 352 | return Ok(5); | |
| 353 | } | |
| 354 | ||
| 355 | #[cyclomatic_complexity = "0"] | |
| 356 | fn early_ret() -> i32 { | |
| 357 | let a = if true { 42 } else { return 0; }; | |
| 358 | let a = if a < 99 { 42 } else { return 0; }; | |
| 359 | let a = if a < 99 { 42 } else { return 0; }; | |
| 360 | let a = if a < 99 { 42 } else { return 0; }; | |
| 361 | let a = if a < 99 { 42 } else { return 0; }; | |
| 362 | let a = if a < 99 { 42 } else { return 0; }; | |
| 363 | let a = if a < 99 { 42 } else { return 0; }; | |
| 364 | let a = if a < 99 { 42 } else { return 0; }; | |
| 365 | let a = if a < 99 { 42 } else { return 0; }; | |
| 366 | let a = if a < 99 { 42 } else { return 0; }; | |
| 367 | let a = if a < 99 { 42 } else { return 0; }; | |
| 368 | let a = if a < 99 { 42 } else { return 0; }; | |
| 369 | match 5 { | |
| 370 | 5 => 5, | |
| 371 | _ => return 6, | |
| 372 | } | |
| 373 | } |