Rename nested_meta to meta_item_inner

compiler/rustc_ast_passes/src/feature_gate.rs

@@ -186,9 +186,9 @@ impl<'a> Visitor<'a> for PostExpansionVisitor<'a> {
         }
         // Check unstable flavors of the `#[doc]` attribute.
         if attr.has_name(sym::doc) {
-            for nested_meta in attr.meta_item_list().unwrap_or_default() {
+            for meta_item_inner in attr.meta_item_list().unwrap_or_default() {
                 macro_rules! gate_doc { ($($s:literal { $($name:ident => $feature:ident)* })*) => {
-                    $($(if nested_meta.has_name(sym::$name) {
+                    $($(if meta_item_inner.has_name(sym::$name) {
                         let msg = concat!("`#[doc(", stringify!($name), ")]` is ", $s);
                         gate!(self, $feature, attr.span, msg);
                     })*)*

compiler/rustc_builtin_macros/src/derive.rs

@@ -49,7 +49,7 @@ impl MultiItemModifier for Expander {
                 let mut resolutions = match &meta_item.kind {
                     MetaItemKind::List(list) => {
                         list.iter()
-                            .filter_map(|nested_meta| match nested_meta {
+                            .filter_map(|meta_item_inner| match meta_item_inner {
                                 MetaItemInner::MetaItem(meta) => Some(meta),
                                 MetaItemInner::Lit(lit) => {
                                     // Reject `#[derive("Debug")]`.

compiler/rustc_expand/src/expand.rs

@@ -1863,7 +1863,7 @@ impl<'a, 'b> InvocationCollector<'a, 'b> {
                         .iter()
                         .filter(|a| a.has_name(sym::derive))
                         .flat_map(|a| a.meta_item_list().unwrap_or_default())
-                        .filter_map(|nested_meta| match nested_meta {
+                        .filter_map(|meta_item_inner| match meta_item_inner {
                             MetaItemInner::MetaItem(ast::MetaItem {
                                 kind: MetaItemKind::Word,
                                 path,

compiler/rustc_resolve/src/build_reduced_graph.rs

@@ -1072,13 +1072,13 @@ impl<'a, 'ra, 'tcx> BuildReducedGraphVisitor<'a, 'ra, 'tcx> {
                             import_all = Some(meta.span);
                             break;
                         }
-                        MetaItemKind::List(nested_metas) => {
-                            for nested_meta in nested_metas {
-                                match nested_meta.ident() {
-                                    Some(ident) if nested_meta.is_word() => {
+                        MetaItemKind::List(meta_item_inners) => {
+                            for meta_item_inner in meta_item_inners {
+                                match meta_item_inner.ident() {
+                                    Some(ident) if meta_item_inner.is_word() => {
                                         single_imports.push(ident)
                                     }
-                                    _ => ill_formed(nested_meta.span()),
+                                    _ => ill_formed(meta_item_inner.span()),
                                 }
                             }
                         }
@@ -1198,8 +1198,10 @@ impl<'a, 'ra, 'tcx> BuildReducedGraphVisitor<'a, 'ra, 'tcx> {
         } else if attr::contains_name(&item.attrs, sym::proc_macro_attribute) {
             return Some((MacroKind::Attr, item.ident, item.span));
         } else if let Some(attr) = attr::find_by_name(&item.attrs, sym::proc_macro_derive) {
-            if let Some(nested_meta) = attr.meta_item_list().and_then(|list| list.get(0).cloned()) {
-                if let Some(ident) = nested_meta.ident() {
+            if let Some(meta_item_inner) =
+                attr.meta_item_list().and_then(|list| list.get(0).cloned())
+            {
+                if let Some(ident) = meta_item_inner.ident() {
                     return Some((MacroKind::Derive, ident, ident.span));
                 }
             }

compiler/rustc_resolve/src/macros.rs

@@ -129,8 +129,8 @@ pub(crate) fn registered_tools(tcx: TyCtxt<'_>, (): ()) -> RegisteredTools {
     let mut registered_tools = RegisteredTools::default();
     let (_, pre_configured_attrs) = &*tcx.crate_for_resolver(()).borrow();
     for attr in attr::filter_by_name(pre_configured_attrs, sym::register_tool) {
-        for nested_meta in attr.meta_item_list().unwrap_or_default() {
-            match nested_meta.ident() {
+        for meta_item_inner in attr.meta_item_list().unwrap_or_default() {
+            match meta_item_inner.ident() {
                 Some(ident) => {
                     if let Some(old_ident) = registered_tools.replace(ident) {
                         tcx.dcx().emit_err(errors::ToolWasAlreadyRegistered {
@@ -142,7 +142,7 @@ pub(crate) fn registered_tools(tcx: TyCtxt<'_>, (): ()) -> RegisteredTools {
                 }
                 None => {
                     tcx.dcx().emit_err(errors::ToolOnlyAcceptsIdentifiers {
-                        span: nested_meta.span(),
+                        span: meta_item_inner.span(),
                         tool: sym::register_tool,
                     });
                 }

src/tools/rustfmt/src/attr.rs

@@ -90,7 +90,7 @@ fn format_derive(
             let item_spans = attr.meta_item_list().map(|meta_item_list| {
                 meta_item_list
                     .into_iter()
-                    .map(|nested_meta_item| nested_meta_item.span())
+                    .map(|meta_item_inner| meta_item_inner.span())
             })?;
 
             let items = itemize_list(
@@ -536,7 +536,7 @@ pub(crate) trait MetaVisitor<'ast> {
         list: &'ast [ast::MetaItemInner],
     ) {
         for nm in list {
-            self.visit_nested_meta_item(nm);
+            self.visit_meta_item_inner(nm);
         }
     }
 
@@ -549,7 +549,7 @@ pub(crate) trait MetaVisitor<'ast> {
     ) {
     }
 
-    fn visit_nested_meta_item(&mut self, nm: &'ast ast::MetaItemInner) {
+    fn visit_meta_item_inner(&mut self, nm: &'ast ast::MetaItemInner) {
         match nm {
             ast::MetaItemInner::MetaItem(ref meta_item) => self.visit_meta_item(meta_item),
             ast::MetaItemInner::Lit(ref lit) => self.visit_meta_item_lit(lit),

src/tools/rustfmt/src/overflow.rs

@@ -138,7 +138,7 @@ impl<'a> OverflowableItem<'a> {
             OverflowableItem::Expr(expr) => is_simple_expr(expr),
             OverflowableItem::MacroArg(MacroArg::Keyword(..)) => true,
             OverflowableItem::MacroArg(MacroArg::Expr(expr)) => is_simple_expr(expr),
-            OverflowableItem::MetaItemInner(nested_meta_item) => match nested_meta_item {
+            OverflowableItem::MetaItemInner(meta_item_inner) => match meta_item_inner {
                 ast::MetaItemInner::Lit(..) => true,
                 ast::MetaItemInner::MetaItem(ref meta_item) => {
                     matches!(meta_item.kind, ast::MetaItemKind::Word)
@@ -184,8 +184,7 @@ impl<'a> OverflowableItem<'a> {
                 MacroArg::Item(..) => len == 1,
                 MacroArg::Keyword(..) => false,
             },
-            OverflowableItem::MetaItemInner(nested_meta_item) if len == 1 => match nested_meta_item
-            {
+            OverflowableItem::MetaItemInner(meta_item_inner) if len == 1 => match meta_item_inner {
                 ast::MetaItemInner::Lit(..) => false,
                 ast::MetaItemInner::MetaItem(..) => true,
             },

src/tools/rustfmt/src/skip.rs

@@ -116,8 +116,8 @@ fn get_skip_names(kind: &str, attrs: &[ast::Attribute]) -> Vec<String> {
         }
 
         if let Some(list) = attr.meta_item_list() {
-            for nested_meta_item in list {
-                if let Some(name) = nested_meta_item.ident() {
+            for meta_item_inner in list {
+                if let Some(name) = meta_item_inner.ident() {
                     skip_names.push(name.to_string());
                 }
             }