Auto merge of #28442 - nagisa:remove-enum-vis-field, r=alexcrichton

Followup on #28440 

Do not merge before the referenced PR is merged. I will fix the PR once that is merged (or close if it is not)

Author: bors

src/librustc_front/fold.rs

@@ -415,7 +415,7 @@ pub fn noop_fold_foreign_mod<T: Folder>(ForeignMod {abi, items}: ForeignMod,
 }
 
 pub fn noop_fold_variant<T: Folder>(v: P<Variant>, fld: &mut T) -> P<Variant> {
-    v.map(|Spanned {node: Variant_ {id, name, attrs, kind, disr_expr, vis}, span}| Spanned {
+    v.map(|Spanned {node: Variant_ {id, name, attrs, kind, disr_expr}, span}| Spanned {
         node: Variant_ {
             id: fld.new_id(id),
             name: name,
@@ -430,7 +430,6 @@ pub fn noop_fold_variant<T: Folder>(v: P<Variant>, fld: &mut T) -> P<Variant> {
                 }
             },
             disr_expr: disr_expr.map(|e| fld.fold_expr(e)),
-            vis: vis,
         },
         span: fld.new_span(span),
     })

src/librustc_front/hir.rs

@@ -1052,7 +1052,6 @@ pub struct Variant_ {
     pub id: NodeId,
     /// Explicit discriminant, eg `Foo = 1`
     pub disr_expr: Option<P<Expr>>,
-    pub vis: Visibility,
 }
 
 pub type Variant = Spanned<Variant_>;

src/librustc_front/lowering.rs

@@ -147,7 +147,6 @@ pub fn lower_variant(v: &Variant) -> P<hir::Variant> {
                 }
             },
             disr_expr: v.node.disr_expr.as_ref().map(|e| lower_expr(e)),
-            vis: lower_visibility(v.node.vis),
         },
         span: v.span,
     })

src/librustc_front/print/pprust.rs

@@ -944,7 +944,6 @@ impl<'a> State<'a> {
     }
 
     pub fn print_variant(&mut self, v: &hir::Variant) -> io::Result<()> {
-        try!(self.print_visibility(v.node.vis));
         match v.node.kind {
             hir::TupleVariantKind(ref args) => {
                 try!(self.print_ident(v.node.name));

src/librustc_privacy/lib.rs

@@ -1075,20 +1075,7 @@ impl<'a, 'tcx> SanePrivacyVisitor<'a, 'tcx> {
                                  instead");
             }
 
-            hir::ItemEnum(ref def, _) => {
-                for v in &def.variants {
-                    match v.node.vis {
-                        hir::Public => {
-                            if item.vis == hir::Public {
-                                span_err!(tcx.sess, v.span, E0448,
-                                          "unnecessary `pub` visibility");
-                            }
-                        }
-                        hir::Inherited => {}
-                    }
-                }
-            }
-
+            hir::ItemEnum(..) |
             hir::ItemTrait(..) | hir::ItemDefaultImpl(..) |
             hir::ItemConst(..) | hir::ItemStatic(..) | hir::ItemStruct(..) |
             hir::ItemFn(..) | hir::ItemMod(..) | hir::ItemTy(..) |
@@ -1131,14 +1118,10 @@ impl<'a, 'tcx> SanePrivacyVisitor<'a, 'tcx> {
                     check_inherited(tcx, i.span, i.vis);
                 }
             }
-            hir::ItemEnum(ref def, _) => {
-                for v in &def.variants {
-                    check_inherited(tcx, v.span, v.node.vis);
-                }
-            }
 
             hir::ItemStruct(ref def, _) => check_struct(&**def),
 
+            hir::ItemEnum(..) |
             hir::ItemExternCrate(_) | hir::ItemUse(_) |
             hir::ItemTrait(..) | hir::ItemDefaultImpl(..) |
             hir::ItemStatic(..) | hir::ItemConst(..) |

src/librustdoc/clean/mod.rs

@@ -1850,7 +1850,7 @@ impl Clean<Item> for doctree::Variant {
             name: Some(self.name.clean(cx)),
             attrs: self.attrs.clean(cx),
             source: self.whence.clean(cx),
-            visibility: self.vis.clean(cx),
+            visibility: None,
             stability: self.stab.clean(cx),
             def_id: DefId::local(self.id),
             inner: VariantItem(Variant {

src/librustdoc/doctree.rs

@@ -121,7 +121,6 @@ pub struct Variant {
     pub attrs: Vec<ast::Attribute>,
     pub kind: hir::VariantKind,
     pub id: ast::NodeId,
-    pub vis: hir::Visibility,
     pub stab: Option<attr::Stability>,
     pub whence: Span,
 }

src/librustdoc/visit_ast.rs

@@ -109,7 +109,6 @@ impl<'a, 'tcx> RustdocVisitor<'a, 'tcx> {
             variants: def.variants.iter().map(|v| Variant {
                 name: v.node.name,
                 attrs: v.node.attrs.clone(),
-                vis: v.node.vis,
                 stab: self.stability(v.node.id),
                 id: v.node.id,
                 kind: v.node.kind.clone(),

src/libsyntax/ast.rs

@@ -1614,7 +1614,6 @@ pub struct Variant_ {
     pub id: NodeId,
     /// Explicit discriminant, eg `Foo = 1`
     pub disr_expr: Option<P<Expr>>,
-    pub vis: Visibility,
 }
 
 pub type Variant = Spanned<Variant_>;

src/libsyntax/config.rs

@@ -141,7 +141,7 @@ fn fold_item_underscore<F>(cx: &mut Context<F>, item: ast::Item_) -> ast::Item_
                     None
                 } else {
                     Some(v.map(|Spanned {node: ast::Variant_ {id, name, attrs, kind,
-                                                              disr_expr, vis}, span}| {
+                                                              disr_expr}, span}| {
                         Spanned {
                             node: ast::Variant_ {
                                 id: id,
@@ -154,7 +154,6 @@ fn fold_item_underscore<F>(cx: &mut Context<F>, item: ast::Item_) -> ast::Item_
                                     }
                                 },
                                 disr_expr: disr_expr,
-                                vis: vis
                             },
                             span: span
                         }