From d3ad264a91d9efba20c59753d88bc350f99dd952 Mon Sep 17 00:00:00 2001
From: lcnr <rust@lcnr.de>
Date: Fri, 29 Jul 2022 12:48:28 +0200
Subject: remove some manual hash stable impls

---
 compiler/rustc_data_structures/src/stable_hasher.rs | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'compiler/rustc_data_structures')

diff --git a/compiler/rustc_data_structures/src/stable_hasher.rs b/compiler/rustc_data_structures/src/stable_hasher.rs
index a915a4daa95..ce859173418 100644
--- a/compiler/rustc_data_structures/src/stable_hasher.rs
+++ b/compiler/rustc_data_structures/src/stable_hasher.rs
@@ -3,6 +3,7 @@ use rustc_index::bit_set;
 use rustc_index::vec;
 use smallvec::SmallVec;
 use std::hash::{BuildHasher, Hash, Hasher};
+use std::marker::PhantomData;
 use std::mem;
 
 #[cfg(test)]
@@ -261,6 +262,10 @@ impl<CTX> HashStable<CTX> for ! {
     }
 }
 
+impl<CTX, T> HashStable<CTX> for PhantomData<T> {
+    fn hash_stable(&self, _ctx: &mut CTX, _hasher: &mut StableHasher) {}
+}
+
 impl<CTX> HashStable<CTX> for ::std::num::NonZeroU32 {
     #[inline]
     fn hash_stable(&self, ctx: &mut CTX, hasher: &mut StableHasher) {
-- 
cgit 1.4.1-3-g733a5