Remove Clean trait implementation for hir::VariantData

Author: GuillaumeGomez

src/librustdoc/clean/mod.rs

@@ -1824,16 +1824,6 @@ pub(crate) fn clean_visibility(vis: ty::Visibility) -> Visibility {
     }
 }
 
-fn clean_variant_data<'tcx>(
-    variant: &hir::VariantData<'tcx>,
-    cx: &mut DocContext<'tcx>,
-) -> VariantStruct {
-    VariantStruct {
-        struct_type: CtorKind::from_hir(variant),
-        fields: variant.fields().iter().map(|x| clean_field(x, cx)).collect(),
-    }
-}
-
 pub(crate) fn clean_variant_def<'tcx>(variant: &ty::VariantDef, cx: &mut DocContext<'tcx>) -> Item {
     let kind = match variant.ctor_kind {
         CtorKind::Const => Variant::CLike,
@@ -1851,15 +1841,19 @@ pub(crate) fn clean_variant_def<'tcx>(variant: &ty::VariantDef, cx: &mut DocCont
     Item { visibility: Inherited, ..what_rustc_thinks }
 }
 
-impl<'tcx> Clean<'tcx, Variant> for hir::VariantData<'tcx> {
-    fn clean(&self, cx: &mut DocContext<'tcx>) -> Variant {
-        match self {
-            hir::VariantData::Struct(..) => Variant::Struct(clean_variant_data(self, cx)),
-            hir::VariantData::Tuple(..) => {
-                Variant::Tuple(self.fields().iter().map(|x| clean_field(x, cx)).collect())
-            }
-            hir::VariantData::Unit(..) => Variant::CLike,
+fn clean_variant_data<'tcx>(
+    variant: &hir::VariantData<'tcx>,
+    cx: &mut DocContext<'tcx>,
+) -> Variant {
+    match variant {
+        hir::VariantData::Struct(..) => Variant::Struct(VariantStruct {
+            struct_type: CtorKind::from_hir(variant),
+            fields: variant.fields().iter().map(|x| clean_field(x, cx)).collect(),
+        }),
+        hir::VariantData::Tuple(..) => {
+            Variant::Tuple(variant.fields().iter().map(|x| clean_field(x, cx)).collect())
         }
+        hir::VariantData::Unit(..) => Variant::CLike,
     }
 }
 
@@ -2007,7 +2001,7 @@ fn clean_maybe_renamed_item<'tcx>(
 
 impl<'tcx> Clean<'tcx, Item> for hir::Variant<'tcx> {
     fn clean(&self, cx: &mut DocContext<'tcx>) -> Item {
-        let kind = VariantItem(self.data.clean(cx));
+        let kind = VariantItem(clean_variant_data(&self.data, cx));
         let what_rustc_thinks =
             Item::from_hir_id_and_parts(self.id, Some(self.ident.name), kind, cx);
         // don't show `pub` for variants, which are always public