UniqueRc: platform-specific AsFd/Handle/etc impls to mirror Rc

Author: zachs18

library/std/src/lib.rs

@@ -378,6 +378,7 @@
 #![feature(thin_box)]
 #![feature(try_reserve_kind)]
 #![feature(try_with_capacity)]
+#![feature(unique_rc_arc)]
 #![feature(vec_into_raw_parts)]
 // tidy-alphabetical-end
 //

library/std/src/os/fd/owned.rs

@@ -427,6 +427,14 @@ impl<T: AsFd + ?Sized> AsFd for crate::rc::Rc<T> {
     }
 }
 
+#[unstable(feature = "unique_rc_arc", issue = "112566")]
+impl<T: AsFd + ?Sized> AsFd for crate::rc::UniqueRc<T> {
+    #[inline]
+    fn as_fd(&self) -> BorrowedFd<'_> {
+        (**self).as_fd()
+    }
+}
+
 #[stable(feature = "asfd_ptrs", since = "1.64.0")]
 impl<T: AsFd + ?Sized> AsFd for Box<T> {
     #[inline]

library/std/src/os/fd/raw.rs

@@ -266,6 +266,14 @@ impl<T: AsRawFd> AsRawFd for crate::rc::Rc<T> {
     }
 }
 
+#[unstable(feature = "unique_rc_arc", issue = "112566")]
+impl<T: AsRawFd + ?Sized> AsRawFd for crate::rc::UniqueRc<T> {
+    #[inline]
+    fn as_raw_fd(&self) -> RawFd {
+        (**self).as_raw_fd()
+    }
+}
+
 #[stable(feature = "asrawfd_ptrs", since = "1.63.0")]
 impl<T: AsRawFd> AsRawFd for Box<T> {
     #[inline]

library/std/src/os/windows/io/handle.rs

@@ -485,6 +485,14 @@ impl<T: AsHandle + ?Sized> AsHandle for crate::rc::Rc<T> {
     }
 }
 
+#[unstable(feature = "unique_rc_arc", issue = "112566")]
+impl<T: AsHandle + ?Sized> AsHandle for crate::rc::UniqueRc<T> {
+    #[inline]
+    fn as_handle(&self) -> BorrowedHandle<'_> {
+        (**self).as_handle()
+    }
+}
+
 #[stable(feature = "as_windows_ptrs", since = "1.71.0")]
 impl<T: AsHandle + ?Sized> AsHandle for Box<T> {
     #[inline]

library/std/src/os/windows/io/socket.rs

@@ -279,6 +279,14 @@ impl<T: AsSocket> AsSocket for crate::rc::Rc<T> {
     }
 }
 
+#[unstable(feature = "unique_rc_arc", issue = "112566")]
+impl<T: AsSocket + ?Sized> AsSocket for crate::rc::UniqueRc<T> {
+    #[inline]
+    fn as_socket(&self) -> BorrowedSocket<'_> {
+        (**self).as_socket()
+    }
+}
+
 #[stable(feature = "as_windows_ptrs", since = "1.71.0")]
 impl<T: AsSocket> AsSocket for Box<T> {
     #[inline]