src/tools/clippy/src/docs/exhaustive_enums.txt

   1 ### What it does
   2 Warns on any exported `enum`s that are not tagged `#[non_exhaustive]`
   3
   4 ### Why is this bad?
   5 Exhaustive enums are typically fine, but a project which does
   6 not wish to make a stability commitment around exported enums may wish to
   7 disable them by default.
   8
   9 ### Example
  10 ```
  11 enum Foo {
  12     Bar,
  13     Baz
  14 }
  15 ```
  16 Use instead:
  17 ```
  18 #[non_exhaustive]
  19 enum Foo {
  20     Bar,
  21     Baz
  22 }
  23 ```