feat: impl AsRef<LocalWaker> for Waker.

tvallotton · tvallotton · commit f82437396fe2 · 2024-01-20T10:14:25.000-03:00
diff --git a/library/core/src/task/wake.rs b/library/core/src/task/wake.rs
@@ -769,6 +769,14 @@ impl Clone for LocalWaker {
     }
 }
 
+#[unstable(feature = "local_waker", issue = "118959")]
+impl AsRef<LocalWaker> for Waker {
+    fn as_ref(&self) -> &LocalWaker {
+        // SAFETY: LocalWaker is just Waker without thread safety
+        unsafe { transmute(self) }
+    }
+}
+
 #[stable(feature = "futures_api", since = "1.36.0")]
 impl fmt::Debug for LocalWaker {
     fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {

Original file line number	Diff line number	Diff line change
`@@ -769,6 +769,14 @@ impl Clone for LocalWaker {`
`769`	`769`	`}`
`770`	`770`	`}`
`771`	`771`
	`772`	`+#[unstable(feature = "local_waker", issue = "118959")]`
	`773`	`+impl AsRef<LocalWaker> for Waker {`
	`774`	`+ fn as_ref(&self) -> &LocalWaker {`
	`775`	`+ // SAFETY: LocalWaker is just Waker without thread safety`
	`776`	`+ unsafe { transmute(self) }`
	`777`	`+ }`
	`778`	`+}`
	`779`	`+`
`772`	`780`	`#[stable(feature = "futures_api", since = "1.36.0")]`
`773`	`781`	`impl fmt::Debug for LocalWaker {`
`774`	`782`	`fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {`