Hide the UnsafeCell content of opaque C++ types in regard to unwind s…

…afety
dtolnay · Aug 30, 2024 · d4f3c16 · d4f3c16
1 parent 82888f1
commit d4f3c16
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/src/opaque.rs b/src/opaque.rs
@@ -4,6 +4,7 @@ use crate::void;
 use core::cell::UnsafeCell;
 use core::marker::{PhantomData, PhantomPinned};
 use core::mem;
+use core::panic::RefUnwindSafe;
 
 // . size = 0
 // . align = 1
@@ -19,6 +20,8 @@ pub struct Opaque {
     _mutable: SyncUnsafeCell<PhantomData<()>>,
 }
 
+impl RefUnwindSafe for Opaque {}
+
 // TODO: https://github.com/rust-lang/rust/issues/95439
 #[repr(transparent)]
 struct SyncUnsafeCell<T>(UnsafeCell<T>);