IdentitySubsts::identity_for_item takes Into<DefId>

4 files changed, 6 insertions, 6 deletions

diff --git a/compiler/rustc_middle/src/mir/mod.rs b/compiler/rustc_middle/src/mir/mod.rs
index 42c0354d03a..638c082cc84 100644
--- a/compiler/rustc_middle/src/mir/mod.rs
+++ b/compiler/rustc_middle/src/mir/mod.rs
@@ -2525,7 +2525,7 @@ impl<'tcx> ConstantKind<'tcx> {
         let parent_substs = if let Some(parent_hir_id) = tcx.hir().opt_parent_id(hir_id)
             && let Some(parent_did) = parent_hir_id.as_owner()
         {
-            InternalSubsts::identity_for_item(tcx, parent_did.to_def_id())
+            InternalSubsts::identity_for_item(tcx, parent_did)
         } else {
             List::empty()
         };
@@ -2554,7 +2554,7 @@ impl<'tcx> ConstantKind<'tcx> {
                 Self::Unevaluated(
                     UnevaluatedConst {
                         def: def.to_global(),
-                        substs: InternalSubsts::identity_for_item(tcx, def.did.to_def_id()),
+                        substs: InternalSubsts::identity_for_item(tcx, def.did),
                         promoted: None,
                     },
                     ty,
diff --git a/compiler/rustc_middle/src/ty/consts.rs b/compiler/rustc_middle/src/ty/consts.rs
index 712c1a31a52..bcedae233d9 100644
--- a/compiler/rustc_middle/src/ty/consts.rs
+++ b/compiler/rustc_middle/src/ty/consts.rs
@@ -83,7 +83,7 @@ impl<'tcx> Const<'tcx> {
             None => tcx.mk_const(
                 ty::UnevaluatedConst {
                     def: def.to_global(),
-                    substs: InternalSubsts::identity_for_item(tcx, def.did.to_def_id()),
+                    substs: InternalSubsts::identity_for_item(tcx, def.did),
                 },
                 ty,
             ),
diff --git a/compiler/rustc_middle/src/ty/mod.rs b/compiler/rustc_middle/src/ty/mod.rs
index d8da8e0f34a..5457cac5567 100644
--- a/compiler/rustc_middle/src/ty/mod.rs
+++ b/compiler/rustc_middle/src/ty/mod.rs
@@ -1385,7 +1385,7 @@ impl<'tcx> OpaqueHiddenType<'tcx> {
         // lifetimes with 'static and remapping only those used in the
         // `impl Trait` return type, resulting in the parameters
         // shifting.
-        let id_substs = InternalSubsts::identity_for_item(tcx, def_id.to_def_id());
+        let id_substs = InternalSubsts::identity_for_item(tcx, def_id);
         debug!(?id_substs);
 
         // This zip may have several times the same lifetime in `substs` paired with a different
diff --git a/compiler/rustc_middle/src/ty/subst.rs b/compiler/rustc_middle/src/ty/subst.rs
index b090bd9d807..f05b873432d 100644
--- a/compiler/rustc_middle/src/ty/subst.rs
+++ b/compiler/rustc_middle/src/ty/subst.rs
@@ -302,8 +302,8 @@ impl<'tcx> InternalSubsts<'tcx> {
     }
 
     /// Creates an `InternalSubsts` that maps each generic parameter to itself.
-    pub fn identity_for_item(tcx: TyCtxt<'tcx>, def_id: DefId) -> SubstsRef<'tcx> {
-        Self::for_item(tcx, def_id, |param, _| tcx.mk_param_from_def(param))
+    pub fn identity_for_item(tcx: TyCtxt<'tcx>, def_id: impl Into<DefId>) -> SubstsRef<'tcx> {
+        Self::for_item(tcx, def_id.into(), |param, _| tcx.mk_param_from_def(param))
     }
 
     /// Creates an `InternalSubsts` for generic parameter definitions,