1 files changed, 38 insertions, 5 deletions
diff --git a/compiler/rustc_middle/src/hir/place.rs b/compiler/rustc_middle/src/hir/place.rs
index 5da4be4e982..143b3867d9f 100644
--- a/compiler/rustc_middle/src/hir/place.rs
+++ b/compiler/rustc_middle/src/hir/place.rs
@@ -4,7 +4,18 @@ use crate::ty::Ty;
 use rustc_hir::HirId;
 use rustc_target::abi::VariantIdx;
 
-#[derive(Clone, Copy, Debug, PartialEq, Eq, Hash, TyEncodable, TyDecodable, HashStable)]
+#[derive(
+    Clone,
+    Copy,
+    Debug,
+    PartialEq,
+    Eq,
+    Hash,
+    TyEncodable,
+    TyDecodable,
+    TypeFoldable,
+    HashStable
+)]
 pub enum PlaceBase {
     /// A temporary variable
     Rvalue,
@@ -16,7 +27,18 @@ pub enum PlaceBase {
     Upvar(ty::UpvarId),
 }
 
-#[derive(Clone, Copy, Debug, PartialEq, Eq, Hash, TyEncodable, TyDecodable, HashStable)]
+#[derive(
+    Clone,
+    Copy,
+    Debug,
+    PartialEq,
+    Eq,
+    Hash,
+    TyEncodable,
+    TyDecodable,
+    TypeFoldable,
+    HashStable
+)]
 pub enum ProjectionKind {
     /// A dereference of a pointer, reference or `Box<T>` of the given type
     Deref,
@@ -36,7 +58,18 @@ pub enum ProjectionKind {
     Subslice,
 }
 
-#[derive(Clone, Copy, Debug, PartialEq, Eq, Hash, TyEncodable, TyDecodable, HashStable)]
+#[derive(
+    Clone,
+    Copy,
+    Debug,
+    PartialEq,
+    Eq,
+    Hash,
+    TyEncodable,
+    TyDecodable,
+    TypeFoldable,
+    HashStable
+)]
 pub struct Projection<'tcx> {
     /// Type after the projection is being applied.
     pub ty: Ty<'tcx>,
@@ -48,7 +81,7 @@ pub struct Projection<'tcx> {
 /// A `Place` represents how a value is located in memory.
 ///
 /// This is an HIR version of `mir::Place`
-#[derive(Clone, Debug, PartialEq, Eq, Hash, TyEncodable, TyDecodable, HashStable)]
+#[derive(Clone, Debug, PartialEq, Eq, Hash, TyEncodable, TyDecodable, TypeFoldable, HashStable)]
 pub struct Place<'tcx> {
     /// The type of the `PlaceBase`
     pub base_ty: Ty<'tcx>,
@@ -61,7 +94,7 @@ pub struct Place<'tcx> {
 /// A `PlaceWithHirId` represents how a value is located in memory.
 ///
 /// This is an HIR version of `mir::Place`
-#[derive(Clone, Debug, PartialEq, Eq, Hash, TyEncodable, TyDecodable, HashStable)]
+#[derive(Clone, Debug, PartialEq, Eq, Hash, TyEncodable, TyDecodable, TypeFoldable, HashStable)]
 pub struct PlaceWithHirId<'tcx> {
     /// `HirId` of the expression or pattern producing this value.
     pub hir_id: HirId,