Moved a struct only need by util into util

Author: Nicholas-Baron

compiler/rustc_typeck/src/check/mod.rs

@@ -99,7 +99,6 @@ use rustc_hir as hir;
 use rustc_hir::def::{CtorOf, DefKind, Res};
 use rustc_hir::def_id::{DefId, DefIdMap, LocalDefId, LOCAL_CRATE};
 use rustc_hir::intravisit::{self, NestedVisitorMap, Visitor};
-use rustc_hir::itemlikevisit::ItemLikeVisitor;
 use rustc_hir::lang_items::LangItem;
 use rustc_hir::{ExprKind, GenericArg, HirIdMap, ItemKind, Node, PatKind, QPath};
 use rustc_index::bit_set::BitSet;
@@ -695,18 +694,6 @@ impl Inherited<'a, 'tcx> {
     }
 }
 
-struct CheckItemTypesVisitor<'tcx> {
-    tcx: TyCtxt<'tcx>,
-}
-
-impl ItemLikeVisitor<'tcx> for CheckItemTypesVisitor<'tcx> {
-    fn visit_item(&mut self, i: &'tcx hir::Item<'tcx>) {
-        check_item_type(self.tcx, i);
-    }
-    fn visit_trait_item(&mut self, _: &'tcx hir::TraitItem<'tcx>) {}
-    fn visit_impl_item(&mut self, _: &'tcx hir::ImplItem<'tcx>) {}
-}
-
 pub fn check_wf_new(tcx: TyCtxt<'_>) {
     let visit = wfcheck::CheckTypeWellFormedVisitor::new(tcx);
     tcx.hir().krate().par_visit_all_item_likes(&visit);

compiler/rustc_typeck/src/check/util.rs

@@ -1,9 +1,10 @@
+use rustc_hir as hir;
 use rustc_hir::def_id::{CrateNum, LocalDefId, LOCAL_CRATE};
+use rustc_hir::itemlikevisit::ItemLikeVisitor;
 
 use std::cell::{Ref, RefCell, RefMut};
 
 use super::wfcheck;
-use crate::check::CheckItemTypesVisitor;
 use crate::{ty, TyCtxt};
 
 /// A wrapper for `InferCtxt`'s `in_progress_typeck_results` field.
@@ -32,6 +33,18 @@ impl<'a, 'tcx> MaybeInProgressTables<'a, 'tcx> {
     }
 }
 
+struct CheckItemTypesVisitor<'tcx> {
+    tcx: TyCtxt<'tcx>,
+}
+
+impl ItemLikeVisitor<'tcx> for CheckItemTypesVisitor<'tcx> {
+    fn visit_item(&mut self, i: &'tcx hir::Item<'tcx>) {
+        super::check_item_type(self.tcx, i);
+    }
+    fn visit_trait_item(&mut self, _: &'tcx hir::TraitItem<'tcx>) {}
+    fn visit_impl_item(&mut self, _: &'tcx hir::ImplItem<'tcx>) {}
+}
+
 pub(super) fn check_mod_item_types(tcx: TyCtxt<'_>, module_def_id: LocalDefId) {
     tcx.hir().visit_item_likes_in_module(module_def_id, &mut CheckItemTypesVisitor { tcx });
 }