3 pub(crate) fn strip_item(mut item: Item) -> Item {
4 if !matches!(*item.kind, StrippedItem(..)) {
5 item.kind = Box::new(StrippedItem(item.kind));
10 pub(crate) trait DocFolder: Sized {
11 fn fold_item(&mut self, item: Item) -> Option<Item> {
12 Some(self.fold_item_recur(item))
16 fn fold_inner_recur(&mut self, kind: ItemKind) -> ItemKind {
18 StrippedItem(..) => unreachable!(),
19 ModuleItem(i) => ModuleItem(self.fold_mod(i)),
20 StructItem(mut i) => {
21 i.fields = i.fields.into_iter().filter_map(|x| self.fold_item(x)).collect();
25 i.fields = i.fields.into_iter().filter_map(|x| self.fold_item(x)).collect();
29 i.variants = i.variants.into_iter().filter_map(|x| self.fold_item(x)).collect();
33 i.items = i.items.into_iter().filter_map(|x| self.fold_item(x)).collect();
37 i.items = i.items.into_iter().filter_map(|x| self.fold_item(x)).collect();
40 VariantItem(i) => match i {
41 Variant::Struct(mut j) => {
42 j.fields = j.fields.into_iter().filter_map(|x| self.fold_item(x)).collect();
43 VariantItem(Variant::Struct(j))
45 Variant::Tuple(fields) => {
46 let fields = fields.into_iter().filter_map(|x| self.fold_item(x)).collect();
47 VariantItem(Variant::Tuple(fields))
49 Variant::CLike => VariantItem(Variant::CLike),
51 ExternCrateItem { src: _ }
62 | ForeignFunctionItem(_)
63 | ForeignStaticItem(_)
68 | TyAssocConstItem(..)
72 | KeywordItem => kind,
77 fn fold_item_recur(&mut self, mut item: Item) -> Item {
78 item.kind = Box::new(match *item.kind {
79 StrippedItem(box i) => StrippedItem(Box::new(self.fold_inner_recur(i))),
80 _ => self.fold_inner_recur(*item.kind),
85 fn fold_mod(&mut self, m: Module) -> Module {
88 items: m.items.into_iter().filter_map(|i| self.fold_item(i)).collect(),
92 fn fold_crate(&mut self, mut c: Crate) -> Crate {
93 c.module = self.fold_item(c.module).unwrap();
95 let external_traits = { std::mem::take(&mut *c.external_traits.borrow_mut()) };
96 for (k, mut v) in external_traits {
97 v.trait_.items = v.trait_.items.into_iter().filter_map(|i| self.fold_item(i)).collect();
98 c.external_traits.borrow_mut().insert(k, v);