rust/library
bors 4061c04079 Auto merge of #87467 - inquisitivecrystal:ref-unwind, r=dtolnay
Implement `RefUnwindSafe` for `Rc<T>`

This PR implements `RefUnwindSafe` for `Rc<T>`, where `T: RefUnwindSafe`.

This impl was omitted by an apparent oversight. `Rc<T>` already implements `UnwindSafe`. `Arc<T>` implements both `UnwindSafe` and `RefUnwindSafe`. There is no reason why an `&Rc<T>` is any less unwind safe than a `Rc<T>` or an `&Arc<T>`, so this should be safe to add.

Resolves #45924.
2021-11-04 06:54:21 +00:00
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