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authorJesper Steen Møller <jesper@selskabet.org>2019-05-02 15:08:03 +0200
committerJesper Steen Møller <jesper@selskabet.org>2019-05-04 20:29:35 +0200
commit6802082039285bc07736f8c9900a0410b5c1e7dc (patch)
tree69e14b8a504df4482de1f78eb9fd99192b2c3fbc /src/librustc_data_structures
parentfc34d5f608e3476bc7c5c4127d4e1ad1ab4fd01a (diff)
downloadrust-6802082039285bc07736f8c9900a0410b5c1e7dc.tar.gz
rust-6802082039285bc07736f8c9900a0410b5c1e7dc.zip
Hash all of the import_ids for the TraitCandidate.
Diffstat (limited to 'src/librustc_data_structures')
-rw-r--r--src/librustc_data_structures/stable_hasher.rs12
1 files changed, 12 insertions, 0 deletions
diff --git a/src/librustc_data_structures/stable_hasher.rs b/src/librustc_data_structures/stable_hasher.rs
index 19343a9250d..c777f1fa829 100644
--- a/src/librustc_data_structures/stable_hasher.rs
+++ b/src/librustc_data_structures/stable_hasher.rs
@@ -1,6 +1,7 @@
 use std::hash::{Hash, Hasher, BuildHasher};
 use std::marker::PhantomData;
 use std::mem;
+use smallvec::SmallVec;
 use crate::sip128::SipHasher128;
 use crate::indexed_vec;
 use crate::bit_set;
@@ -318,6 +319,17 @@ impl<T: HashStable<CTX>, CTX> HashStable<CTX> for Vec<T> {
     }
 }
 
+impl<A, CTX> HashStable<CTX> for SmallVec<[A; 1]> where A: HashStable<CTX> {
+    #[inline]
+    fn hash_stable<W: StableHasherResult>(&self,
+                                          ctx: &mut CTX,
+                                          hasher: &mut StableHasher<W>) {
+        for item in self {
+            item.hash_stable(ctx, hasher);
+        }
+    }
+}
+
 impl<T: ?Sized + HashStable<CTX>, CTX> HashStable<CTX> for Box<T> {
     #[inline]
     fn hash_stable<W: StableHasherResult>(&self,