3 pub struct StripItem(pub Item);
6 pub fn strip(self) -> Option<Item> {
8 Item { inner: StrippedItem(..), .. } => Some(self.0),
10 i.inner = StrippedItem(box i.inner);
17 pub trait DocFolder : Sized {
18 fn fold_item(&mut self, item: Item) -> Option<Item> {
19 self.fold_item_recur(item)
23 fn fold_inner_recur(&mut self, inner: ItemEnum) -> ItemEnum {
25 StrippedItem(..) => unreachable!(),
27 ModuleItem(self.fold_mod(i))
29 StructItem(mut i) => {
30 let num_fields = i.fields.len();
31 i.fields = i.fields.into_iter().filter_map(|x| self.fold_item(x)).collect();
32 i.fields_stripped |= num_fields != i.fields.len() ||
33 i.fields.iter().any(|f| f.is_stripped());
37 let num_fields = i.fields.len();
38 i.fields = i.fields.into_iter().filter_map(|x| self.fold_item(x)).collect();
39 i.fields_stripped |= num_fields != i.fields.len() ||
40 i.fields.iter().any(|f| f.is_stripped());
44 let num_variants = i.variants.len();
45 i.variants = i.variants.into_iter().filter_map(|x| self.fold_item(x)).collect();
46 i.variants_stripped |= num_variants != i.variants.len() ||
47 i.variants.iter().any(|f| f.is_stripped());
51 i.items = i.items.into_iter().filter_map(|x| self.fold_item(x)).collect();
55 i.items = i.items.into_iter().filter_map(|x| self.fold_item(x)).collect();
59 let i2 = i.clone(); // this clone is small
61 VariantKind::Struct(mut j) => {
62 let num_fields = j.fields.len();
63 j.fields = j.fields.into_iter().filter_map(|x| self.fold_item(x)).collect();
64 j.fields_stripped |= num_fields != j.fields.len() ||
65 j.fields.iter().any(|f| f.is_stripped());
66 VariantItem(Variant {kind: VariantKind::Struct(j), ..i2})
76 fn fold_item_recur(&mut self, item: Item) -> Option<Item> {
88 let inner = match inner {
89 StrippedItem(box i) => StrippedItem(box self.fold_inner_recur(i)),
90 _ => self.fold_inner_recur(inner),
93 Some(Item { attrs, name, source, inner, visibility,
94 stability, deprecation, def_id })
97 fn fold_mod(&mut self, m: Module) -> Module {
100 items: m.items.into_iter().filter_map(|i| self.fold_item(i)).collect()
104 fn fold_crate(&mut self, mut c: Crate) -> Crate {
105 c.module = c.module.take().and_then(|module| self.fold_item(module));
108 let guard = c.external_traits.lock();
109 let traits = guard.replace(Default::default());
110 guard.borrow_mut().extend(traits.into_iter().map(|(k, mut v)| {
111 v.items = v.items.into_iter().filter_map(|i| self.fold_item(i)).collect();