hir: remove NodeId from StructField

src/librustc/hir/lowering.rs

@@ -2743,11 +2743,10 @@ impl<'a> LoweringContext<'a> {
     }
 
     fn lower_struct_field(&mut self, (index, f): (usize, &StructField)) -> hir::StructField {
-        let LoweredNodeId { node_id, hir_id } = self.lower_node_id(f.id);
+        let LoweredNodeId { node_id: _, hir_id } = self.lower_node_id(f.id);
 
         hir::StructField {
             span: f.span,
-            id: node_id,
             hir_id,
             ident: match f.ident {
                 Some(ident) => ident,

src/librustc/hir/mod.rs

@@ -2132,7 +2132,6 @@ pub struct StructField {
     pub span: Span,
     pub ident: Ident,
     pub vis: Visibility,
-    pub id: NodeId,
     pub hir_id: HirId,
     pub ty: P<Ty>,
     pub attrs: HirVec<Attribute>,

src/librustc/ich/impls_hir.rs

@@ -838,7 +838,6 @@ impl_stable_hash_for!(struct hir::StructField {
     span,
     ident -> (ident.name),
     vis,
-    id,
     hir_id,
     ty,
     attrs

src/librustc/middle/dead.rs

@@ -465,7 +465,7 @@ impl<'a, 'tcx> DeadVisitor<'a, 'tcx> {
     }
 
     fn should_warn_about_field(&mut self, field: &hir::StructField) -> bool {
-        let field_type = self.tcx.type_of(self.tcx.hir().local_def_id(field.id));
+        let field_type = self.tcx.type_of(self.tcx.hir().local_def_id_from_hir_id(field.hir_id));
         !field.is_positional()
             && !self.symbol_is_live(field.hir_id)
             && !field_type.is_phantom_data()

src/librustc/middle/stability.rs

@@ -317,10 +317,9 @@ struct MissingStabilityAnnotations<'a, 'tcx: 'a> {
 impl<'a, 'tcx: 'a> MissingStabilityAnnotations<'a, 'tcx> {
     fn check_missing_stability(&self, hir_id: HirId, span: Span, name: &str) {
         let stab = self.tcx.stability().local_stability(hir_id);
-        let node_id = self.tcx.hir().hir_to_node_id(hir_id);
         let is_error = !self.tcx.sess.opts.test &&
                         stab.is_none() &&
-                        self.access_levels.is_reachable(node_id);
+                        self.access_levels.is_reachable(self.tcx.hir().hir_to_node_id(hir_id));
         if is_error {
             self.tcx.sess.span_err(
                 span,

src/librustc_codegen_ssa/back/symbol_export.rs

@@ -69,7 +69,7 @@ fn reachable_non_generics_provider<'a, 'tcx>(tcx: TyCtxt<'a, 'tcx, 'tcx>,
 
     let mut reachable_non_generics: DefIdMap<_> = tcx.reachable_set(LOCAL_CRATE).0
         .iter()
-        .filter_map(|&node_id| {
+        .filter_map(|&hir_id| {
             // We want to ignore some FFI functions that are not exposed from
             // this crate. Reachable FFI functions can be lumped into two
             // categories:
@@ -83,9 +83,9 @@ fn reachable_non_generics_provider<'a, 'tcx>(tcx: TyCtxt<'a, 'tcx, 'tcx>,
             //
             // As a result, if this id is an FFI item (foreign item) then we only
             // let it through if it's included statically.
-            match tcx.hir().get(node_id) {
+            match tcx.hir().get_by_hir_id(hir_id) {
                 Node::ForeignItem(..) => {
-                    let def_id = tcx.hir().local_def_id(node_id);
+                    let def_id = tcx.hir().local_def_id_from_hir_id(hir_id);
                     if tcx.is_statically_included_foreign_item(def_id) {
                         Some(def_id)
                     } else {
@@ -105,7 +105,7 @@ fn reachable_non_generics_provider<'a, 'tcx>(tcx: TyCtxt<'a, 'tcx, 'tcx>,
                     node: hir::ImplItemKind::Method(..),
                     ..
                 }) => {
-                    let def_id = tcx.hir().local_def_id(node_id);
+                    let def_id = tcx.hir().local_def_id_from_hir_id(hir_id);
                     let generics = tcx.generics_of(def_id);
                     if !generics.requires_monomorphization(tcx) &&
                         // Functions marked with #[inline] are only ever codegened
@@ -343,8 +343,8 @@ fn upstream_monomorphizations_for_provider<'a, 'tcx>(
 }
 
 fn is_unreachable_local_definition_provider(tcx: TyCtxt<'_, '_, '_>, def_id: DefId) -> bool {
-    if let Some(node_id) = tcx.hir().as_local_node_id(def_id) {
-        !tcx.reachable_set(LOCAL_CRATE).0.contains(&node_id)
+    if let Some(hir_id) = tcx.hir().as_local_hir_id(def_id) {
+        !tcx.reachable_set(LOCAL_CRATE).0.contains(&hir_id)
     } else {
         bug!("is_unreachable_local_definition called with non-local DefId: {:?}",
              def_id)

src/librustc_lint/builtin.rs

@@ -148,7 +148,7 @@ impl<'a, 'tcx> LateLintPass<'a, 'tcx> for BoxPointers {
             hir::ItemKind::Struct(ref struct_def, _) |
             hir::ItemKind::Union(ref struct_def, _) => {
                 for struct_field in struct_def.fields() {
-                    let def_id = cx.tcx.hir().local_def_id(struct_field.id);
+                    let def_id = cx.tcx.hir().local_def_id_from_hir_id(struct_field.hir_id);
                     self.check_heap_type(cx, struct_field.span,
                                          cx.tcx.type_of(def_id));
                 }
@@ -560,7 +560,8 @@ impl LintPass for MissingCopyImplementations {
 
 impl<'a, 'tcx> LateLintPass<'a, 'tcx> for MissingCopyImplementations {
     fn check_item(&mut self, cx: &LateContext<'_, '_>, item: &hir::Item) {
-        if !cx.access_levels.is_reachable(item.id) {
+        let node_id = cx.tcx.hir().hir_to_node_id(item.hir_id);
+        if !cx.access_levels.is_reachable(node_id) {
             return;
         }
         let (def, ty) = match item.node {
@@ -631,7 +632,8 @@ impl LintPass for MissingDebugImplementations {
 
 impl<'a, 'tcx> LateLintPass<'a, 'tcx> for MissingDebugImplementations {
     fn check_item(&mut self, cx: &LateContext<'_, '_>, item: &hir::Item) {
-        if !cx.access_levels.is_reachable(item.id) {
+        let node_id = cx.tcx.hir().hir_to_node_id(item.hir_id);
+        if !cx.access_levels.is_reachable(node_id) {
             return;
         }
 
@@ -1078,7 +1080,8 @@ impl<'a, 'tcx> LateLintPass<'a, 'tcx> for UnionsWithDropFields {
     fn check_item(&mut self, ctx: &LateContext<'_, '_>, item: &hir::Item) {
         if let hir::ItemKind::Union(ref vdata, _) = item.node {
             for field in vdata.fields() {
-                let field_ty = ctx.tcx.type_of(ctx.tcx.hir().local_def_id(field.id));
+                let field_ty = ctx.tcx.type_of(
+                    ctx.tcx.hir().local_def_id_from_hir_id(field.hir_id));
                 if field_ty.needs_drop(ctx.tcx, ctx.param_env) {
                     ctx.span_lint(UNIONS_WITH_DROP_FIELDS,
                                   field.span,

src/librustc_typeck/check/wfcheck.rs

@@ -1050,7 +1050,7 @@ struct AdtField<'tcx> {
 impl<'a, 'gcx, 'tcx> FnCtxt<'a, 'gcx, 'tcx> {
     fn non_enum_variant(&self, struct_def: &hir::VariantData) -> AdtVariant<'tcx> {
         let fields = struct_def.fields().iter().map(|field| {
-            let field_ty = self.tcx.type_of(self.tcx.hir().local_def_id(field.id));
+            let field_ty = self.tcx.type_of(self.tcx.hir().local_def_id_from_hir_id(field.hir_id));
             let field_ty = self.normalize_associated_types_in(field.span,
                                                               &field_ty);
             AdtField { ty: field_ty, span: field.span }

src/librustc_typeck/collect.rs

@@ -447,7 +447,7 @@ fn convert_item<'a, 'tcx>(tcx: TyCtxt<'a, 'tcx, 'tcx>, item_id: ast::NodeId) {
             tcx.predicates_of(def_id);
 
             for f in struct_def.fields() {
-                let def_id = tcx.hir().local_def_id(f.id);
+                let def_id = tcx.hir().local_def_id_from_hir_id(f.hir_id);
                 tcx.generics_of(def_id);
                 tcx.type_of(def_id);
                 tcx.predicates_of(def_id);
@@ -555,7 +555,7 @@ fn convert_enum_variant_types<'a, 'tcx>(
         );
 
         for f in variant.node.data.fields() {
-            let def_id = tcx.hir().local_def_id(f.id);
+            let def_id = tcx.hir().local_def_id_from_hir_id(f.hir_id);
             tcx.generics_of(def_id);
             tcx.type_of(def_id);
             tcx.predicates_of(def_id);
@@ -582,7 +582,7 @@ fn convert_variant<'a, 'tcx>(
         .fields()
         .iter()
         .map(|f| {
-            let fid = tcx.hir().local_def_id(f.id);
+            let fid = tcx.hir().local_def_id_from_hir_id(f.hir_id);
             let dup_span = seen_fields.get(&f.ident.modern()).cloned();
             if let Some(prev_span) = dup_span {
                 struct_span_err!(
@@ -1577,7 +1577,7 @@ fn fn_sig<'a, 'tcx>(tcx: TyCtxt<'a, 'tcx, 'tcx>, def_id: DefId) -> ty::PolyFnSig
             let ty = tcx.type_of(tcx.hir().get_parent_did(node_id));
             let inputs = fields
                 .iter()
-                .map(|f| tcx.type_of(tcx.hir().local_def_id(f.id)));
+                .map(|f| tcx.type_of(tcx.hir().local_def_id_from_hir_id(f.hir_id)));
             ty::Binder::bind(tcx.mk_fn_sig(
                 inputs,
                 ty,

src/librustdoc/clean/mod.rs

@@ -2913,14 +2913,16 @@ impl<'tcx> Clean<Type> for Ty<'tcx> {
 
 impl Clean<Item> for hir::StructField {
     fn clean(&self, cx: &DocContext<'_, '_, '_>) -> Item {
+        let local_did = cx.tcx.hir().local_def_id_from_hir_id(self.hir_id);
+
         Item {
             name: Some(self.ident.name).clean(cx),
             attrs: self.attrs.clean(cx),
             source: self.span.clean(cx),
             visibility: self.vis.clean(cx),
-            stability: get_stability(cx, cx.tcx.hir().local_def_id(self.id)),
-            deprecation: get_deprecation(cx, cx.tcx.hir().local_def_id(self.id)),
-            def_id: cx.tcx.hir().local_def_id(self.id),
+            stability: get_stability(cx, local_did),
+            deprecation: get_deprecation(cx, local_did),
+            def_id: local_did,
             inner: StructFieldItem(self.ty.clean(cx)),
         }
     }