From ad7f5293db22e23d8d50077aa99f5d7a904092fc Mon Sep 17 00:00:00 2001
From: Michael Krasnitski <michael.krasnitski@gmail.com>
Date: Fri, 6 Jan 2023 14:13:55 -0500
Subject: Rust API: Additional Cleanup

---
 rust/src/rc.rs | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

(limited to 'rust/src/rc.rs')

diff --git a/rust/src/rc.rs b/rust/src/rc.rs
index 57deddc3..4ffecb3f 100644
--- a/rust/src/rc.rs
+++ b/rust/src/rc.rs
@@ -16,6 +16,7 @@
 
 use std::borrow::Borrow;
 use std::fmt::{Debug, Display, Formatter};
+use std::hash::{Hash, Hasher};
 use std::marker::PhantomData;
 use std::mem;
 use std::ops::{Deref, DerefMut};
@@ -118,7 +119,13 @@ impl<T: RefCountable + PartialEq> PartialEq for Ref<T> {
     }
 }
 
-impl<T: RefCountable + PartialEq> Eq for Ref<T> {}
+impl<T: RefCountable + Eq> Eq for Ref<T> {}
+
+impl<T: RefCountable + Hash> Hash for Ref<T> {
+    fn hash<H: Hasher>(&self, state: &mut H) {
+        self.contents.hash(state);
+    }
+}
 
 // Guard provides access to a core-allocated resource whose
 // reference is held indirectly (e.g. a core-allocated array
@@ -147,7 +154,7 @@ impl<'a, T> Guard<'a, T>
 where
     T: RefCountable,
 {
-    #[allow(clippy::should_implement_trait)]  // This _is_ out own (lite) version of that trait
+    #[allow(clippy::should_implement_trait)] // This _is_ out own (lite) version of that trait
     pub fn clone(&self) -> Ref<T> {
         unsafe { <T as RefCountable>::inc_ref(&self.contents) }
     }
-- 
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