From 4233b735317eeb2c09230ae94246f70d1b91f1fa Mon Sep 17 00:00:00 2001
From: Aaron Hill <aa1ronham@gmail.com>
Date: Fri, 17 Dec 2021 10:18:24 -0500
Subject: [PATCH] Change AdtDef's `PartialEq` and `Hash` impls to use `DefId`

---
 compiler/rustc_middle/src/ty/adt.rs | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/compiler/rustc_middle/src/ty/adt.rs b/compiler/rustc_middle/src/ty/adt.rs
index 771ce2eb884af..08452585a3f59 100644
--- a/compiler/rustc_middle/src/ty/adt.rs
+++ b/compiler/rustc_middle/src/ty/adt.rs
@@ -20,7 +20,7 @@ use std::cell::RefCell;
 use std::cmp::Ordering;
 use std::hash::{Hash, Hasher};
 use std::ops::Range;
-use std::{ptr, str};
+use std::str;
 
 use super::{
     Destructor, FieldDef, GenericPredicates, ReprOptions, Ty, TyCtxt, VariantDef, VariantDiscr,
@@ -117,7 +117,7 @@ impl PartialEq for AdtDef {
     // `AdtDef`s are always interned, and this is part of `TyS` equality.
     #[inline]
     fn eq(&self, other: &Self) -> bool {
-        ptr::eq(self, other)
+        self.did == other.did
     }
 }
 
@@ -126,7 +126,7 @@ impl Eq for AdtDef {}
 impl Hash for AdtDef {
     #[inline]
     fn hash<H: Hasher>(&self, s: &mut H) {
-        (self as *const AdtDef).hash(s)
+        self.did.hash(s)
     }
 }