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

   1 error: manual implementation of `split_once`
   2   --> $DIR/manual_split_once.rs:11:13
   3    |
   4 LL |     let _ = "key=value".splitn(2, '=').nth(1).unwrap();
   5    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `"key=value".split_once('=').unwrap().1`
   6    |
   7    = note: `-D clippy::manual-split-once` implied by `-D warnings`
   8    = help: to override `-D warnings` add `#[allow(clippy::manual_split_once)]`
   9
  10 error: manual implementation of `split_once`
  11   --> $DIR/manual_split_once.rs:12:13
  12    |
  13 LL |     let _ = "key=value".splitn(2, '=').skip(1).next().unwrap();
  14    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `"key=value".split_once('=').unwrap().1`
  15
  16 error: manual implementation of `split_once`
  17   --> $DIR/manual_split_once.rs:13:18
  18    |
  19 LL |     let (_, _) = "key=value".splitn(2, '=').next_tuple().unwrap();
  20    |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `"key=value".split_once('=')`
  21
  22 error: manual implementation of `split_once`
  23   --> $DIR/manual_split_once.rs:16:13
  24    |
  25 LL |     let _ = s.splitn(2, '=').nth(1).unwrap();
  26    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `s.split_once('=').unwrap().1`
  27
  28 error: manual implementation of `split_once`
  29   --> $DIR/manual_split_once.rs:19:13
  30    |
  31 LL |     let _ = s.splitn(2, '=').nth(1).unwrap();
  32    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `s.split_once('=').unwrap().1`
  33
  34 error: manual implementation of `split_once`
  35   --> $DIR/manual_split_once.rs:22:13
  36    |
  37 LL |     let _ = s.splitn(2, '=').skip(1).next().unwrap();
  38    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `s.split_once('=').unwrap().1`
  39
  40 error: manual implementation of `split_once`
  41   --> $DIR/manual_split_once.rs:25:17
  42    |
  43 LL |         let _ = s.splitn(2, '=').nth(1)?;
  44    |                 ^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `s.split_once('=')?.1`
  45
  46 error: manual implementation of `split_once`
  47   --> $DIR/manual_split_once.rs:26:17
  48    |
  49 LL |         let _ = s.splitn(2, '=').skip(1).next()?;
  50    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `s.split_once('=')?.1`
  51
  52 error: manual implementation of `rsplit_once`
  53   --> $DIR/manual_split_once.rs:27:17
  54    |
  55 LL |         let _ = s.rsplitn(2, '=').nth(1)?;
  56    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `s.rsplit_once('=')?.0`
  57
  58 error: manual implementation of `rsplit_once`
  59   --> $DIR/manual_split_once.rs:28:17
  60    |
  61 LL |         let _ = s.rsplitn(2, '=').skip(1).next()?;
  62    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `s.rsplit_once('=')?.0`
  63
  64 error: manual implementation of `rsplit_once`
  65   --> $DIR/manual_split_once.rs:36:13
  66    |
  67 LL |     let _ = "key=value".rsplitn(2, '=').nth(1).unwrap();
  68    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `"key=value".rsplit_once('=').unwrap().0`
  69
  70 error: manual implementation of `rsplit_once`
  71   --> $DIR/manual_split_once.rs:37:18
  72    |
  73 LL |     let (_, _) = "key=value".rsplitn(2, '=').next_tuple().unwrap();
  74    |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `"key=value".rsplit_once('=').map(|(x, y)| (y, x))`
  75
  76 error: manual implementation of `rsplit_once`
  77   --> $DIR/manual_split_once.rs:38:13
  78    |
  79 LL |     let _ = s.rsplitn(2, '=').nth(1);
  80    |             ^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `s.rsplit_once('=').map(|x| x.0)`
  81
  82 error: manual implementation of `split_once`
  83   --> $DIR/manual_split_once.rs:42:5
  84    |
  85 LL |     let mut iter = "a.b.c".splitn(2, '.');
  86    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  87 LL |     let l = iter.next().unwrap();
  88    |     ----------------------------- first usage here
  89 LL |     let r = iter.next().unwrap();
  90    |     ----------------------------- second usage here
  91    |
  92 help: try `split_once`
  93    |
  94 LL |     let (l, r) = "a.b.c".split_once('.').unwrap();
  95    |
  96 help: remove the `iter` usages
  97    |
  98 LL -     let l = iter.next().unwrap();
  99 LL +
 100    |
 101 help: remove the `iter` usages
 102    |
 103 LL -     let r = iter.next().unwrap();
 104 LL +
 105    |
 106
 107 error: manual implementation of `split_once`
 108   --> $DIR/manual_split_once.rs:46:5
 109    |
 110 LL |     let mut iter = "a.b.c".splitn(2, '.');
 111    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 112 LL |     let l = iter.next()?;
 113    |     --------------------- first usage here
 114 LL |     let r = iter.next()?;
 115    |     --------------------- second usage here
 116    |
 117 help: try `split_once`
 118    |
 119 LL |     let (l, r) = "a.b.c".split_once('.')?;
 120    |
 121 help: remove the `iter` usages
 122    |
 123 LL -     let l = iter.next()?;
 124 LL +
 125    |
 126 help: remove the `iter` usages
 127    |
 128 LL -     let r = iter.next()?;
 129 LL +
 130    |
 131
 132 error: manual implementation of `rsplit_once`
 133   --> $DIR/manual_split_once.rs:50:5
 134    |
 135 LL |     let mut iter = "a.b.c".rsplitn(2, '.');
 136    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 137 LL |     let r = iter.next().unwrap();
 138    |     ----------------------------- first usage here
 139 LL |     let l = iter.next().unwrap();
 140    |     ----------------------------- second usage here
 141    |
 142 help: try `rsplit_once`
 143    |
 144 LL |     let (l, r) = "a.b.c".rsplit_once('.').unwrap();
 145    |
 146 help: remove the `iter` usages
 147    |
 148 LL -     let r = iter.next().unwrap();
 149 LL +
 150    |
 151 help: remove the `iter` usages
 152    |
 153 LL -     let l = iter.next().unwrap();
 154 LL +
 155    |
 156
 157 error: manual implementation of `rsplit_once`
 158   --> $DIR/manual_split_once.rs:54:5
 159    |
 160 LL |     let mut iter = "a.b.c".rsplitn(2, '.');
 161    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 162 LL |     let r = iter.next()?;
 163    |     --------------------- first usage here
 164 LL |     let l = iter.next()?;
 165    |     --------------------- second usage here
 166    |
 167 help: try `rsplit_once`
 168    |
 169 LL |     let (l, r) = "a.b.c".rsplit_once('.')?;
 170    |
 171 help: remove the `iter` usages
 172    |
 173 LL -     let r = iter.next()?;
 174 LL +
 175    |
 176 help: remove the `iter` usages
 177    |
 178 LL -     let l = iter.next()?;
 179 LL +
 180    |
 181
 182 error: manual implementation of `split_once`
 183   --> $DIR/manual_split_once.rs:139:13
 184    |
 185 LL |     let _ = "key=value".splitn(2, '=').nth(1).unwrap();
 186    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `"key=value".split_once('=').unwrap().1`
 187
 188 error: manual implementation of `split_once`
 189   --> $DIR/manual_split_once.rs:141:5
 190    |
 191 LL |     let mut iter = "a.b.c".splitn(2, '.');
 192    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 193 LL |     let a = iter.next().unwrap();
 194    |     ----------------------------- first usage here
 195 LL |     let b = iter.next().unwrap();
 196    |     ----------------------------- second usage here
 197    |
 198 help: try `split_once`
 199    |
 200 LL |     let (a, b) = "a.b.c".split_once('.').unwrap();
 201    |
 202 help: remove the `iter` usages
 203    |
 204 LL -     let a = iter.next().unwrap();
 205 LL +
 206    |
 207 help: remove the `iter` usages
 208    |
 209 LL -     let b = iter.next().unwrap();
 210 LL +
 211    |
 212
 213 error: aborting due to 19 previous errors
 214