Fix Sync impl of BiLockGuard

taiki-e · taiki-e · commit 1f6f8d077472 · 2022-08-14T20:01:05.000+09:00
diff --git a/futures-util/src/lock/bilock.rs b/futures-util/src/lock/bilock.rs
@@ -224,6 +224,9 @@ pub struct BiLockGuard<'a, T> {
     bilock: &'a BiLock<T>,
 }
 
+// We allow parallel access to T via Deref, so Sync bound is also needed here.
+unsafe impl<T: Send + Sync> Sync for BiLockGuard<'_, T> {}
+
 impl<T> Deref for BiLockGuard<'_, T> {
     type Target = T;
     fn deref(&self) -> &T {

Original file line number	Diff line number	Diff line change
`@@ -224,6 +224,9 @@ pub struct BiLockGuard<'a, T> {`
`224`	`224`	`bilock: &'a BiLock<T>,`
`225`	`225`	`}`
`226`	`226`
	`227`	`+// We allow parallel access to T via Deref, so Sync bound is also needed here.`
	`228`	`+unsafe impl<T: Send + Sync> Sync for BiLockGuard<'_, T> {}`
	`229`	`+`
`227`	`230`	`impl<T> Deref for BiLockGuard<'_, T> {`
`228`	`231`	`type Target = T;`
`229`	`232`	`fn deref(&self) -> &T {`