src/tools/clippy/src/docs/unnecessary_wraps.txt

   1 ### What it does
   2 Checks for private functions that only return `Ok` or `Some`.
   3
   4 ### Why is this bad?
   5 It is not meaningful to wrap values when no `None` or `Err` is returned.
   6
   7 ### Known problems
   8 There can be false positives if the function signature is designed to
   9 fit some external requirement.
  10
  11 ### Example
  12 ```
  13 fn get_cool_number(a: bool, b: bool) -> Option<i32> {
  14     if a && b {
  15         return Some(50);
  16     }
  17     if a {
  18         Some(0)
  19     } else {
  20         Some(10)
  21     }
  22 }
  23 ```
  24 Use instead:
  25 ```
  26 fn get_cool_number(a: bool, b: bool) -> i32 {
  27     if a && b {
  28         return 50;
  29     }
  30     if a {
  31         0
  32     } else {
  33         10
  34     }
  35 }
  36 ```