src/tools/clippy/src/docs/unsafe_derive_deserialize.txt

   1 ### What it does
   2 Checks for deriving `serde::Deserialize` on a type that
   3 has methods using `unsafe`.
   4
   5 ### Why is this bad?
   6 Deriving `serde::Deserialize` will create a constructor
   7 that may violate invariants hold by another constructor.
   8
   9 ### Example
  10 ```
  11 use serde::Deserialize;
  12
  13 #[derive(Deserialize)]
  14 pub struct Foo {
  15     // ..
  16 }
  17
  18 impl Foo {
  19     pub fn new() -> Self {
  20         // setup here ..
  21     }
  22
  23     pub unsafe fn parts() -> (&str, &str) {
  24         // assumes invariants hold
  25     }
  26 }
  27 ```