Adopt let else in more places

2022-02-19 00:48:49 +01:00
parent b8c56fa8c3
commit 2ef8af6619
132 changed files with 539 additions and 881 deletions
--- a/compiler/rustc_ty_utils/src/ty.rs
+++ b/compiler/rustc_ty_utils/src/ty.rs
@@ -49,10 +49,7 @@ fn sized_constraint_for_ty<'tcx>(
            // we know that `T` is Sized and do not need to check
            // it on the impl.

-            let sized_trait = match tcx.lang_items().sized_trait() {
-                Some(x) => x,
-                _ => return vec![ty],
-            };
+            let Some(sized_trait) = tcx.lang_items().sized_trait() else { return vec![ty] };
            let sized_predicate = ty::Binder::dummy(ty::TraitRef {
                def_id: sized_trait,
                substs: tcx.mk_substs_trait(ty, &[]),