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use crate::clean::*;
pub(crate) fn strip_item(mut item: Item) -> Item {
if !matches!(*item.kind, StrippedItem(..)) {
item.kind = Box::new(StrippedItem(item.kind));
}
item
}
pub(crate) trait DocFolder: Sized {
fn fold_item(&mut self, item: Item) -> Option<Item> {
Some(self.fold_item_recur(item))
}
/// don't override!
fn fold_inner_recur(&mut self, kind: ItemKind) -> ItemKind {
match kind {
StrippedItem(..) => unreachable!(),
ModuleItem(i) => ModuleItem(self.fold_mod(i)),
StructItem(mut i) => {
i.fields = i.fields.into_iter().filter_map(|x| self.fold_item(x)).collect();
StructItem(i)
}
UnionItem(mut i) => {
i.fields = i.fields.into_iter().filter_map(|x| self.fold_item(x)).collect();
UnionItem(i)
}
EnumItem(mut i) => {
i.variants = i.variants.into_iter().filter_map(|x| self.fold_item(x)).collect();
EnumItem(i)
}
TraitItem(mut i) => {
i.items = i.items.into_iter().filter_map(|x| self.fold_item(x)).collect();
TraitItem(i)
}
ImplItem(mut i) => {
i.items = i.items.into_iter().filter_map(|x| self.fold_item(x)).collect();
ImplItem(i)
}
VariantItem(i) => match i {
Variant::Struct(mut j) => {
j.fields = j.fields.into_iter().filter_map(|x| self.fold_item(x)).collect();
VariantItem(Variant::Struct(j))
}
Variant::Tuple(fields) => {
let fields = fields.into_iter().filter_map(|x| self.fold_item(x)).collect();
VariantItem(Variant::Tuple(fields))
}
Variant::CLike(disr) => VariantItem(Variant::CLike(disr)),
},
ExternCrateItem { src: _ }
| ImportItem(_)
| FunctionItem(_)
| TypedefItem(_)
| OpaqueTyItem(_)
| StaticItem(_)
| ConstantItem(_)
| TraitAliasItem(_)
| TyMethodItem(_)
| MethodItem(_, _)
| StructFieldItem(_)
| ForeignFunctionItem(_)
| ForeignStaticItem(_)
| ForeignTypeItem
| MacroItem(_)
| ProcMacroItem(_)
| PrimitiveItem(_)
| TyAssocConstItem(..)
| AssocConstItem(..)
| TyAssocTypeItem(..)
| AssocTypeItem(..)
| KeywordItem => kind,
}
}
/// don't override!
fn fold_item_recur(&mut self, mut item: Item) -> Item {
item.kind = Box::new(match *item.kind {
StrippedItem(box i) => StrippedItem(Box::new(self.fold_inner_recur(i))),
_ => self.fold_inner_recur(*item.kind),
});
item
}
fn fold_mod(&mut self, m: Module) -> Module {
Module {
span: m.span,
items: m.items.into_iter().filter_map(|i| self.fold_item(i)).collect(),
}
}
fn fold_crate(&mut self, mut c: Crate) -> Crate {
c.module = self.fold_item(c.module).unwrap();
let external_traits = { std::mem::take(&mut *c.external_traits.borrow_mut()) };
for (k, mut v) in external_traits {
v.items = v.items.into_iter().filter_map(|i| self.fold_item(i)).collect();
c.external_traits.borrow_mut().insert(k, v);
}
c
}
}
|
