fix clippy::toplevel_ref_arg and ::manual_map

2 files changed, 5 insertions, 8 deletions

diff --git a/compiler/rustc_ty_utils/src/instance.rs b/compiler/rustc_ty_utils/src/instance.rs
index 0a6c118093e..47cd7af221d 100644
--- a/compiler/rustc_ty_utils/src/instance.rs
+++ b/compiler/rustc_ty_utils/src/instance.rs
@@ -234,15 +234,12 @@ fn resolve_associated_item<'tcx>(
             _ => None,
         },
         traits::ImplSource::Object(ref data) => {
-            if let Some(index) = traits::get_vtable_index_of_object_method(tcx, data, trait_item_id)
-            {
-                Some(Instance {
+            traits::get_vtable_index_of_object_method(tcx, data, trait_item_id).map(|index| {
+                Instance {
                     def: ty::InstanceDef::Virtual(trait_item_id, index),
                     substs: rcvr_substs,
-                })
-            } else {
-                None
-            }
+                }
+            })
         }
         traits::ImplSource::Builtin(..) => {
             let lang_items = tcx.lang_items();
diff --git a/compiler/rustc_ty_utils/src/structural_match.rs b/compiler/rustc_ty_utils/src/structural_match.rs
index a55bb7e7e90..9cb0fc10594 100644
--- a/compiler/rustc_ty_utils/src/structural_match.rs
+++ b/compiler/rustc_ty_utils/src/structural_match.rs
@@ -13,7 +13,7 @@ use rustc_trait_selection::traits::{ObligationCause, ObligationCtxt};
 /// Note that this does *not* recursively check if the substructure of `adt_ty`
 /// implements the traits.
 fn has_structural_eq_impls<'tcx>(tcx: TyCtxt<'tcx>, adt_ty: Ty<'tcx>) -> bool {
-    let ref infcx = tcx.infer_ctxt().build();
+    let infcx = &tcx.infer_ctxt().build();
     let cause = ObligationCause::dummy();
 
     let ocx = ObligationCtxt::new(infcx);