From 7fc84907dc39bf36050ec0dfd57f82079f09d993 Mon Sep 17 00:00:00 2001
From: Michael Woerister <michaelwoerister@posteo.net>
Date: Fri, 2 Jun 2017 17:34:24 +0200
Subject: ICH: Add some HashStable implementations.

---
 src/librustc_data_structures/stable_hasher.rs | 26 ++++++++++++++++++++++++++
 1 file changed, 26 insertions(+)

(limited to 'src/librustc_data_structures')

diff --git a/src/librustc_data_structures/stable_hasher.rs b/src/librustc_data_structures/stable_hasher.rs
index 635b95d861d..634d3041bf4 100644
--- a/src/librustc_data_structures/stable_hasher.rs
+++ b/src/librustc_data_structures/stable_hasher.rs
@@ -244,6 +244,14 @@ impl<CTX> HashStable<CTX> for f64 {
     }
 }
 
+impl<T1: HashStable<CTX>, CTX> HashStable<CTX> for (T1,) {
+    fn hash_stable<W: StableHasherResult>(&self,
+                                          ctx: &mut CTX,
+                                          hasher: &mut StableHasher<W>) {
+        self.0.hash_stable(ctx, hasher);
+    }
+}
+
 impl<T1: HashStable<CTX>, T2: HashStable<CTX>, CTX> HashStable<CTX> for (T1, T2) {
     fn hash_stable<W: StableHasherResult>(&self,
                                           ctx: &mut CTX,
@@ -273,6 +281,24 @@ impl<T: HashStable<CTX>, CTX> HashStable<CTX> for Vec<T> {
     }
 }
 
+impl<T: HashStable<CTX>, CTX> HashStable<CTX> for ::std::rc::Rc<T> {
+    #[inline]
+    fn hash_stable<W: StableHasherResult>(&self,
+                                          ctx: &mut CTX,
+                                          hasher: &mut StableHasher<W>) {
+        (**self).hash_stable(ctx, hasher);
+    }
+}
+
+impl<T: HashStable<CTX>, CTX> HashStable<CTX> for ::std::sync::Arc<T> {
+    #[inline]
+    fn hash_stable<W: StableHasherResult>(&self,
+                                          ctx: &mut CTX,
+                                          hasher: &mut StableHasher<W>) {
+        (**self).hash_stable(ctx, hasher);
+    }
+}
+
 impl<CTX> HashStable<CTX> for str {
     #[inline]
     fn hash_stable<W: StableHasherResult>(&self,
-- 
cgit 1.4.1-3-g733a5