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

   1 error: called `map(f)` on an Option value where `f` is a unit function
   2   --> $DIR/option_map_unit_fn.rs:32:5
   3    |
   4 32 |     x.field.map(do_nothing);
   5    |     ^^^^^^^^^^^^^^^^^^^^^^^-
   6    |     |
   7    |     help: try this: `if let Some(x_field) = x.field { do_nothing(...) }`
   8    |
   9    = note: `-D option-map-unit-fn` implied by `-D warnings`
  10
  11 error: called `map(f)` on an Option value where `f` is a unit function
  12   --> $DIR/option_map_unit_fn.rs:34:5
  13    |
  14 34 |     x.field.map(do_nothing);
  15    |     ^^^^^^^^^^^^^^^^^^^^^^^-
  16    |     |
  17    |     help: try this: `if let Some(x_field) = x.field { do_nothing(...) }`
  18
  19 error: called `map(f)` on an Option value where `f` is a unit function
  20   --> $DIR/option_map_unit_fn.rs:36:5
  21    |
  22 36 |     x.field.map(diverge);
  23    |     ^^^^^^^^^^^^^^^^^^^^-
  24    |     |
  25    |     help: try this: `if let Some(x_field) = x.field { diverge(...) }`
  26
  27 error: called `map(f)` on an Option value where `f` is a unit closure
  28   --> $DIR/option_map_unit_fn.rs:42:5
  29    |
  30 42 |     x.field.map(|value| x.do_option_nothing(value + captured));
  31    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^-
  32    |     |
  33    |     help: try this: `if let Some(value) = x.field { x.do_option_nothing(value + captured) }`
  34
  35 error: called `map(f)` on an Option value where `f` is a unit closure
  36   --> $DIR/option_map_unit_fn.rs:44:5
  37    |
  38 44 |     x.field.map(|value| { x.do_option_plus_one(value + captured); });
  39    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^-
  40    |     |
  41    |     help: try this: `if let Some(value) = x.field { x.do_option_plus_one(value + captured); }`
  42
  43 error: called `map(f)` on an Option value where `f` is a unit closure
  44   --> $DIR/option_map_unit_fn.rs:47:5
  45    |
  46 47 |     x.field.map(|value| do_nothing(value + captured));
  47    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^-
  48    |     |
  49    |     help: try this: `if let Some(value) = x.field { do_nothing(value + captured) }`
  50
  51 error: called `map(f)` on an Option value where `f` is a unit closure
  52   --> $DIR/option_map_unit_fn.rs:49:5
  53    |
  54 49 |     x.field.map(|value| { do_nothing(value + captured) });
  55    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^-
  56    |     |
  57    |     help: try this: `if let Some(value) = x.field { do_nothing(value + captured) }`
  58
  59 error: called `map(f)` on an Option value where `f` is a unit closure
  60   --> $DIR/option_map_unit_fn.rs:51:5
  61    |
  62 51 |     x.field.map(|value| { do_nothing(value + captured); });
  63    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^-
  64    |     |
  65    |     help: try this: `if let Some(value) = x.field { do_nothing(value + captured); }`
  66
  67 error: called `map(f)` on an Option value where `f` is a unit closure
  68   --> $DIR/option_map_unit_fn.rs:53:5
  69    |
  70 53 |     x.field.map(|value| { { do_nothing(value + captured); } });
  71    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^-
  72    |     |
  73    |     help: try this: `if let Some(value) = x.field { do_nothing(value + captured); }`
  74
  75 error: called `map(f)` on an Option value where `f` is a unit closure
  76   --> $DIR/option_map_unit_fn.rs:56:5
  77    |
  78 56 |     x.field.map(|value| diverge(value + captured));
  79    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^-
  80    |     |
  81    |     help: try this: `if let Some(value) = x.field { diverge(value + captured) }`
  82
  83 error: called `map(f)` on an Option value where `f` is a unit closure
  84   --> $DIR/option_map_unit_fn.rs:58:5
  85    |
  86 58 |     x.field.map(|value| { diverge(value + captured) });
  87    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^-
  88    |     |
  89    |     help: try this: `if let Some(value) = x.field { diverge(value + captured) }`
  90
  91 error: called `map(f)` on an Option value where `f` is a unit closure
  92   --> $DIR/option_map_unit_fn.rs:60:5
  93    |
  94 60 |     x.field.map(|value| { diverge(value + captured); });
  95    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^-
  96    |     |
  97    |     help: try this: `if let Some(value) = x.field { diverge(value + captured); }`
  98
  99 error: called `map(f)` on an Option value where `f` is a unit closure
 100   --> $DIR/option_map_unit_fn.rs:62:5
 101    |
 102 62 |     x.field.map(|value| { { diverge(value + captured); } });
 103    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^-
 104    |     |
 105    |     help: try this: `if let Some(value) = x.field { diverge(value + captured); }`
 106
 107 error: called `map(f)` on an Option value where `f` is a unit closure
 108   --> $DIR/option_map_unit_fn.rs:67:5
 109    |
 110 67 |     x.field.map(|value| { let y = plus_one(value + captured); });
 111    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^-
 112    |     |
 113    |     help: try this: `if let Some(value) = x.field { let y = plus_one(value + captured); }`
 114
 115 error: called `map(f)` on an Option value where `f` is a unit closure
 116   --> $DIR/option_map_unit_fn.rs:69:5
 117    |
 118 69 |     x.field.map(|value| { plus_one(value + captured); });
 119    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^-
 120    |     |
 121    |     help: try this: `if let Some(value) = x.field { plus_one(value + captured); }`
 122
 123 error: called `map(f)` on an Option value where `f` is a unit closure
 124   --> $DIR/option_map_unit_fn.rs:71:5
 125    |
 126 71 |     x.field.map(|value| { { plus_one(value + captured); } });
 127    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^-
 128    |     |
 129    |     help: try this: `if let Some(value) = x.field { plus_one(value + captured); }`
 130
 131 error: called `map(f)` on an Option value where `f` is a unit closure
 132   --> $DIR/option_map_unit_fn.rs:74:5
 133    |
 134 74 |     x.field.map(|ref value| { do_nothing(value + captured) });
 135    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^-
 136    |     |
 137    |     help: try this: `if let Some(ref value) = x.field { do_nothing(value + captured) }`
 138
 139 error: called `map(f)` on an Option value where `f` is a unit closure
 140   --> $DIR/option_map_unit_fn.rs:77:5
 141    |
 142 77 |     x.field.map(|value| { do_nothing(value); do_nothing(value) });
 143    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^-
 144    |     |
 145    |     help: try this: `if let Some(value) = x.field { ... }`
 146
 147 error: called `map(f)` on an Option value where `f` is a unit closure
 148   --> $DIR/option_map_unit_fn.rs:79:5
 149    |
 150 79 |     x.field.map(|value| if value > 0 { do_nothing(value); do_nothing(value) });
 151    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^-
 152    |     |
 153    |     help: try this: `if let Some(value) = x.field { ... }`
 154
 155 error: called `map(f)` on an Option value where `f` is a unit closure
 156   --> $DIR/option_map_unit_fn.rs:83:5
 157    |
 158 83 |        x.field.map(|value| {
 159    |   _____^
 160    |  |_____|
 161    | ||
 162 84 | ||         do_nothing(value);
 163 85 | ||         do_nothing(value)
 164 86 | ||     });
 165    | ||______^- help: try this: `if let Some(value) = x.field { ... }`
 166    | |_______|
 167    |
 168
 169 error: called `map(f)` on an Option value where `f` is a unit closure
 170   --> $DIR/option_map_unit_fn.rs:87:5
 171    |
 172 87 |     x.field.map(|value| { do_nothing(value); do_nothing(value); });
 173    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^-
 174    |     |
 175    |     help: try this: `if let Some(value) = x.field { ... }`
 176
 177 error: called `map(f)` on an Option value where `f` is a unit function
 178   --> $DIR/option_map_unit_fn.rs:90:5
 179    |
 180 90 |     Some(42).map(diverge);
 181    |     ^^^^^^^^^^^^^^^^^^^^^-
 182    |     |
 183    |     help: try this: `if let Some(_) = Some(42) { diverge(...) }`
 184
 185 error: called `map(f)` on an Option value where `f` is a unit function
 186   --> $DIR/option_map_unit_fn.rs:91:5
 187    |
 188 91 |     "12".parse::<i32>().ok().map(diverge);
 189    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^-
 190    |     |
 191    |     help: try this: `if let Some(_) = "12".parse::<i32>().ok() { diverge(...) }`
 192
 193 error: called `map(f)` on an Option value where `f` is a unit function
 194   --> $DIR/option_map_unit_fn.rs:92:5
 195    |
 196 92 |     Some(plus_one(1)).map(do_nothing);
 197    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^-
 198    |     |
 199    |     help: try this: `if let Some(_) = Some(plus_one(1)) { do_nothing(...) }`
 200
 201 error: called `map(f)` on an Option value where `f` is a unit function
 202   --> $DIR/option_map_unit_fn.rs:96:5
 203    |
 204 96 |     y.map(do_nothing);
 205    |     ^^^^^^^^^^^^^^^^^-
 206    |     |
 207    |     help: try this: `if let Some(_y) = y { do_nothing(...) }`
 208
 209 error: aborting due to 25 previous errors
 210