clone_behavior_no_longer_eq.md

---

title: "`CloneBehavior` is no longer `PartialEq` or `Eq`"
pull_requests: [18393]

---

CloneBehavior no longer implements PartialEq or Eq and thus does not work with the == and != operators, as the internal comparisons involve comparing function pointers which may result in unexpected results.

Use pattern matching to check for equality instead:

// 0.16
if clone_behavior == CloneBehavior::Ignore {
   ...
}

// 0.17
if matches!(clone_behavior, CloneBehavior::Ignore) {
   ...
}