mv build_reduced_graph_for_external_crate_res into Resolver

compiler/rustc_resolve/src/build_reduced_graph.rs

@@ -197,8 +197,77 @@ impl<'a, 'tcx> Resolver<'a, 'tcx> {
     pub(crate) fn build_reduced_graph_external(&mut self, module: Module<'a>) {
         for child in self.tcx.module_children(module.def_id()) {
             let parent_scope = ParentScope::module(module, self);
-            BuildReducedGraphVisitor { r: self, parent_scope }
-                .build_reduced_graph_for_external_crate_res(child);
+            self.build_reduced_graph_for_external_crate_res(child, parent_scope)
+        }
+    }
+
+    /// Builds the reduced graph for a single item in an external crate.
+    fn build_reduced_graph_for_external_crate_res(
+        &mut self,
+        child: &ModChild,
+        parent_scope: ParentScope<'a>,
+    ) {
+        let parent = parent_scope.module;
+        let ModChild { ident, res, vis, ref reexport_chain } = *child;
+        let span = self.def_span(
+            reexport_chain
+                .first()
+                .and_then(|reexport| reexport.id())
+                .unwrap_or_else(|| res.def_id()),
+        );
+        let res = res.expect_non_local();
+        let expansion = parent_scope.expansion;
+        // Record primary definitions.
+        match res {
+            Res::Def(DefKind::Mod | DefKind::Enum | DefKind::Trait, def_id) => {
+                let module = self.expect_module(def_id);
+                self.define(parent, ident, TypeNS, (module, vis, span, expansion));
+            }
+            Res::Def(
+                DefKind::Struct
+                | DefKind::Union
+                | DefKind::Variant
+                | DefKind::TyAlias
+                | DefKind::ForeignTy
+                | DefKind::OpaqueTy
+                | DefKind::TraitAlias
+                | DefKind::AssocTy,
+                _,
+            )
+            | Res::PrimTy(..)
+            | Res::ToolMod => self.define(parent, ident, TypeNS, (res, vis, span, expansion)),
+            Res::Def(
+                DefKind::Fn
+                | DefKind::AssocFn
+                | DefKind::Static { .. }
+                | DefKind::Const
+                | DefKind::AssocConst
+                | DefKind::Ctor(..),
+                _,
+            ) => self.define(parent, ident, ValueNS, (res, vis, span, expansion)),
+            Res::Def(DefKind::Macro(..), _) | Res::NonMacroAttr(..) => {
+                self.define(parent, ident, MacroNS, (res, vis, span, expansion))
+            }
+            Res::Def(
+                DefKind::TyParam
+                | DefKind::ConstParam
+                | DefKind::ExternCrate
+                | DefKind::Use
+                | DefKind::ForeignMod
+                | DefKind::AnonConst
+                | DefKind::InlineConst
+                | DefKind::Field
+                | DefKind::LifetimeParam
+                | DefKind::GlobalAsm
+                | DefKind::Closure
+                | DefKind::Impl { .. },
+                _,
+            )
+            | Res::Local(..)
+            | Res::SelfTyParam { .. }
+            | Res::SelfTyAlias { .. }
+            | Res::SelfCtor(..)
+            | Res::Err => bug!("unexpected resolution: {:?}", res),
         }
     }
 }
@@ -967,72 +1036,6 @@ impl<'a, 'b, 'tcx> BuildReducedGraphVisitor<'a, 'b, 'tcx> {
         }
     }
 
-    /// Builds the reduced graph for a single item in an external crate.
-    fn build_reduced_graph_for_external_crate_res(&mut self, child: &ModChild) {
-        let parent = self.parent_scope.module;
-        let ModChild { ident, res, vis, ref reexport_chain } = *child;
-        let span = self.r.def_span(
-            reexport_chain
-                .first()
-                .and_then(|reexport| reexport.id())
-                .unwrap_or_else(|| res.def_id()),
-        );
-        let res = res.expect_non_local();
-        let expansion = self.parent_scope.expansion;
-        // Record primary definitions.
-        match res {
-            Res::Def(DefKind::Mod | DefKind::Enum | DefKind::Trait, def_id) => {
-                let module = self.r.expect_module(def_id);
-                self.r.define(parent, ident, TypeNS, (module, vis, span, expansion));
-            }
-            Res::Def(
-                DefKind::Struct
-                | DefKind::Union
-                | DefKind::Variant
-                | DefKind::TyAlias
-                | DefKind::ForeignTy
-                | DefKind::OpaqueTy
-                | DefKind::TraitAlias
-                | DefKind::AssocTy,
-                _,
-            )
-            | Res::PrimTy(..)
-            | Res::ToolMod => self.r.define(parent, ident, TypeNS, (res, vis, span, expansion)),
-            Res::Def(
-                DefKind::Fn
-                | DefKind::AssocFn
-                | DefKind::Static { .. }
-                | DefKind::Const
-                | DefKind::AssocConst
-                | DefKind::Ctor(..),
-                _,
-            ) => self.r.define(parent, ident, ValueNS, (res, vis, span, expansion)),
-            Res::Def(DefKind::Macro(..), _) | Res::NonMacroAttr(..) => {
-                self.r.define(parent, ident, MacroNS, (res, vis, span, expansion))
-            }
-            Res::Def(
-                DefKind::TyParam
-                | DefKind::ConstParam
-                | DefKind::ExternCrate
-                | DefKind::Use
-                | DefKind::ForeignMod
-                | DefKind::AnonConst
-                | DefKind::InlineConst
-                | DefKind::Field
-                | DefKind::LifetimeParam
-                | DefKind::GlobalAsm
-                | DefKind::Closure
-                | DefKind::Impl { .. },
-                _,
-            )
-            | Res::Local(..)
-            | Res::SelfTyParam { .. }
-            | Res::SelfTyAlias { .. }
-            | Res::SelfCtor(..)
-            | Res::Err => bug!("unexpected resolution: {:?}", res),
-        }
-    }
-
     fn add_macro_use_binding(
         &mut self,
         name: Symbol,