Rollup merge of rust-lang#99559 - GuillaumeGomez:rm-unused-field-keyword, r=notriddle

Remove unused field in ItemKind::KeywordItem

For the keyword name, we use `Item::name` directly everywhere so there is no point into keeping it.

r? ``@notriddle``

Author: matthiaskrgr

src/librustdoc/clean/types.rs

@@ -496,8 +496,7 @@ impl Item {
         // Primitives and Keywords are written in the source code as private modules.
         // The modules need to be private so that nobody actually uses them, but the
         // keywords and primitives that they are documenting are public.
-        let visibility = if matches!(&kind, ItemKind::KeywordItem(..) | ItemKind::PrimitiveItem(..))
-        {
+        let visibility = if matches!(&kind, ItemKind::KeywordItem | ItemKind::PrimitiveItem(..)) {
             Visibility::Public
         } else {
             cx.tcx.visibility(def_id).clean(cx)
@@ -769,7 +768,7 @@ pub(crate) enum ItemKind {
     AssocTypeItem(Typedef, Vec<GenericBound>),
     /// An item that has been stripped by a rustdoc pass
     StrippedItem(Box<ItemKind>),
-    KeywordItem(Symbol),
+    KeywordItem,
 }
 
 impl ItemKind {
@@ -808,7 +807,7 @@ impl ItemKind {
             | TyAssocTypeItem(..)
             | AssocTypeItem(..)
             | StrippedItem(_)
-            | KeywordItem(_) => [].iter(),
+            | KeywordItem => [].iter(),
         }
     }
 }

src/librustdoc/clean/utils.rs

@@ -69,7 +69,7 @@ pub(crate) fn krate(cx: &mut DocContext<'_>) -> Crate {
             )
         }));
         m.items.extend(keywords.into_iter().map(|(def_id, kw)| {
-            Item::from_def_id_and_parts(def_id, Some(kw), ItemKind::KeywordItem(kw), cx)
+            Item::from_def_id_and_parts(def_id, Some(kw), ItemKind::KeywordItem, cx)
         }));
     }
 

src/librustdoc/fold.rs

@@ -69,7 +69,7 @@ pub(crate) trait DocFolder: Sized {
             | AssocConstItem(..)
             | TyAssocTypeItem(..)
             | AssocTypeItem(..)
-            | KeywordItem(_) => kind,
+            | KeywordItem => kind,
         }
     }
 

src/librustdoc/formats/cache.rs

@@ -413,7 +413,7 @@ impl<'a, 'tcx> DocFolder for CacheBuilder<'a, 'tcx> {
             | clean::TyAssocTypeItem(..)
             | clean::AssocTypeItem(..)
             | clean::StrippedItem(..)
-            | clean::KeywordItem(..) => {
+            | clean::KeywordItem => {
                 // FIXME: Do these need handling?
                 // The person writing this comment doesn't know.
                 // So would rather leave them to an expert,

src/librustdoc/formats/item_type.rs

@@ -91,7 +91,7 @@ impl<'a> From<&'a clean::Item> for ItemType {
             clean::TyAssocConstItem(..) | clean::AssocConstItem(..) => ItemType::AssocConst,
             clean::TyAssocTypeItem(..) | clean::AssocTypeItem(..) => ItemType::AssocType,
             clean::ForeignTypeItem => ItemType::ForeignType,
-            clean::KeywordItem(..) => ItemType::Keyword,
+            clean::KeywordItem => ItemType::Keyword,
             clean::TraitAliasItem(..) => ItemType::TraitAlias,
             clean::ProcMacroItem(ref mac) => match mac.kind {
                 MacroKind::Bang => ItemType::Macro,

src/librustdoc/html/render/print_item.rs

@@ -104,7 +104,7 @@ pub(super) fn print_item(
         clean::StaticItem(..) | clean::ForeignStaticItem(..) => "Static ",
         clean::ConstantItem(..) => "Constant ",
         clean::ForeignTypeItem => "Foreign Type ",
-        clean::KeywordItem(..) => "Keyword ",
+        clean::KeywordItem => "Keyword ",
         clean::OpaqueTyItem(..) => "Opaque Type ",
         clean::TraitAliasItem(..) => "Trait Alias ",
         _ => {
@@ -175,7 +175,7 @@ pub(super) fn print_item(
         clean::StaticItem(ref i) | clean::ForeignStaticItem(ref i) => item_static(buf, cx, item, i),
         clean::ConstantItem(ref c) => item_constant(buf, cx, item, c),
         clean::ForeignTypeItem => item_foreign_type(buf, cx, item),
-        clean::KeywordItem(_) => item_keyword(buf, cx, item),
+        clean::KeywordItem => item_keyword(buf, cx, item),
         clean::OpaqueTyItem(ref e) => item_opaque_ty(buf, cx, item, e),
         clean::TraitAliasItem(ref ta) => item_trait_alias(buf, cx, item, ta),
         _ => {

src/librustdoc/json/conversions.rs

@@ -43,7 +43,7 @@ impl JsonRenderer<'_> {
         let span = item.span(self.tcx);
         let clean::Item { name, attrs: _, kind: _, visibility, item_id, cfg: _ } = item;
         let inner = match *item.kind {
-            clean::KeywordItem(_) => return None,
+            clean::KeywordItem => return None,
             clean::StrippedItem(ref inner) => {
                 match &**inner {
                     // We document non-empty stripped modules as with `Module::is_stripped` set to
@@ -269,7 +269,7 @@ fn from_clean_item(item: clean::Item, tcx: TyCtxt<'_>) -> ItemEnum {
             default: Some(t.item_type.unwrap_or(t.type_).into_tcx(tcx)),
         },
         // `convert_item` early returns `None` for stripped items and keywords.
-        KeywordItem(_) => unreachable!(),
+        KeywordItem => unreachable!(),
         StrippedItem(inner) => {
             match *inner {
                 ModuleItem(m) => ItemEnum::Module(Module {

src/librustdoc/passes/check_doc_test_visibility.rs

@@ -69,7 +69,7 @@ pub(crate) fn should_have_doc_example(cx: &DocContext<'_>, item: &clean::Item) -
                 | clean::ExternCrateItem { .. }
                 | clean::ImportItem(_)
                 | clean::PrimitiveItem(_)
-                | clean::KeywordItem(_)
+                | clean::KeywordItem
                 // check for trait impl
                 | clean::ImplItem(clean::Impl { trait_: Some(_), .. })
         )

src/librustdoc/passes/stripper.rs

@@ -98,7 +98,7 @@ impl<'a> DocFolder for Stripper<'a> {
             clean::PrimitiveItem(..) => {}
 
             // Keywords are never stripped
-            clean::KeywordItem(..) => {}
+            clean::KeywordItem => {}
         }
 
         let fastreturn = match *i.kind {

src/librustdoc/visit.rs

@@ -43,7 +43,7 @@ pub(crate) trait DocVisitor: Sized {
             | AssocConstItem(..)
             | TyAssocTypeItem(..)
             | AssocTypeItem(..)
-            | KeywordItem(_) => {}
+            | KeywordItem => {}
         }
     }