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Remove more Clean trait implementations #100166

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Aug 5, 2022
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129 changes: 65 additions & 64 deletions src/librustdoc/clean/mod.rs
Original file line number Diff line number Diff line change
Expand Up @@ -156,7 +156,7 @@ impl<'tcx> Clean<'tcx, Option<GenericBound>> for hir::GenericBound<'tcx> {
return None;
}

GenericBound::TraitBound(t.clean(cx), modifier)
GenericBound::TraitBound(clean_poly_trait_ref(t, cx), modifier)
}
})
}
Expand Down Expand Up @@ -1001,69 +1001,68 @@ fn clean_trait_ref<'tcx>(trait_ref: &hir::TraitRef<'tcx>, cx: &mut DocContext<'t
path
}

impl<'tcx> Clean<'tcx, PolyTrait> for hir::PolyTraitRef<'tcx> {
fn clean(&self, cx: &mut DocContext<'tcx>) -> PolyTrait {
PolyTrait {
trait_: clean_trait_ref(&self.trait_ref, cx),
generic_params: self
.bound_generic_params
.iter()
.filter(|p| !is_elided_lifetime(p))
.map(|x| clean_generic_param(cx, None, x))
.collect(),
}
fn clean_poly_trait_ref<'tcx>(
poly_trait_ref: &hir::PolyTraitRef<'tcx>,
cx: &mut DocContext<'tcx>,
) -> PolyTrait {
PolyTrait {
trait_: clean_trait_ref(&poly_trait_ref.trait_ref, cx),
generic_params: poly_trait_ref
.bound_generic_params
.iter()
.filter(|p| !is_elided_lifetime(p))
.map(|x| clean_generic_param(cx, None, x))
.collect(),
}
}

impl<'tcx> Clean<'tcx, Item> for hir::TraitItem<'tcx> {
fn clean(&self, cx: &mut DocContext<'tcx>) -> Item {
let local_did = self.def_id.to_def_id();
cx.with_param_env(local_did, |cx| {
let inner = match self.kind {
hir::TraitItemKind::Const(ty, Some(default)) => AssocConstItem(
clean_ty(ty, cx),
ConstantKind::Local { def_id: local_did, body: default },
),
hir::TraitItemKind::Const(ty, None) => TyAssocConstItem(clean_ty(ty, cx)),
hir::TraitItemKind::Fn(ref sig, hir::TraitFn::Provided(body)) => {
let m = clean_function(cx, sig, self.generics, body);
MethodItem(m, None)
}
hir::TraitItemKind::Fn(ref sig, hir::TraitFn::Required(names)) => {
let (generics, decl) = enter_impl_trait(cx, |cx| {
// NOTE: generics must be cleaned before args
let generics = self.generics.clean(cx);
let args = clean_args_from_types_and_names(cx, sig.decl.inputs, names);
let decl = clean_fn_decl_with_args(cx, sig.decl, args);
(generics, decl)
});
TyMethodItem(Box::new(Function { decl, generics }))
}
hir::TraitItemKind::Type(bounds, Some(default)) => {
let generics = enter_impl_trait(cx, |cx| self.generics.clean(cx));
let bounds = bounds.iter().filter_map(|x| x.clean(cx)).collect();
let item_type = clean_middle_ty(hir_ty_to_ty(cx.tcx, default), cx, None);
AssocTypeItem(
Box::new(Typedef {
type_: clean_ty(default, cx),
generics,
item_type: Some(item_type),
}),
bounds,
)
}
hir::TraitItemKind::Type(bounds, None) => {
let generics = enter_impl_trait(cx, |cx| self.generics.clean(cx));
let bounds = bounds.iter().filter_map(|x| x.clean(cx)).collect();
TyAssocTypeItem(Box::new(generics), bounds)
}
};
let what_rustc_thinks =
Item::from_def_id_and_parts(local_did, Some(self.ident.name), inner, cx);
// Trait items always inherit the trait's visibility -- we don't want to show `pub`.
Item { visibility: Inherited, ..what_rustc_thinks }
})
}
fn clean_trait_item<'tcx>(trait_item: &hir::TraitItem<'tcx>, cx: &mut DocContext<'tcx>) -> Item {
let local_did = trait_item.def_id.to_def_id();
cx.with_param_env(local_did, |cx| {
let inner = match trait_item.kind {
hir::TraitItemKind::Const(ty, Some(default)) => AssocConstItem(
clean_ty(ty, cx),
ConstantKind::Local { def_id: local_did, body: default },
),
hir::TraitItemKind::Const(ty, None) => TyAssocConstItem(clean_ty(ty, cx)),
hir::TraitItemKind::Fn(ref sig, hir::TraitFn::Provided(body)) => {
let m = clean_function(cx, sig, trait_item.generics, body);
MethodItem(m, None)
}
hir::TraitItemKind::Fn(ref sig, hir::TraitFn::Required(names)) => {
let (generics, decl) = enter_impl_trait(cx, |cx| {
// NOTE: generics must be cleaned before args
let generics = trait_item.generics.clean(cx);
let args = clean_args_from_types_and_names(cx, sig.decl.inputs, names);
let decl = clean_fn_decl_with_args(cx, sig.decl, args);
(generics, decl)
});
TyMethodItem(Box::new(Function { decl, generics }))
}
hir::TraitItemKind::Type(bounds, Some(default)) => {
let generics = enter_impl_trait(cx, |cx| trait_item.generics.clean(cx));
let bounds = bounds.iter().filter_map(|x| x.clean(cx)).collect();
let item_type = clean_middle_ty(hir_ty_to_ty(cx.tcx, default), cx, None);
AssocTypeItem(
Box::new(Typedef {
type_: clean_ty(default, cx),
generics,
item_type: Some(item_type),
}),
bounds,
)
}
hir::TraitItemKind::Type(bounds, None) => {
let generics = enter_impl_trait(cx, |cx| trait_item.generics.clean(cx));
let bounds = bounds.iter().filter_map(|x| x.clean(cx)).collect();
TyAssocTypeItem(Box::new(generics), bounds)
}
};
let what_rustc_thinks =
Item::from_def_id_and_parts(local_did, Some(trait_item.ident.name), inner, cx);
// Trait items always inherit the trait's visibility -- we don't want to show `pub`.
Item { visibility: Inherited, ..what_rustc_thinks }
})
}

impl<'tcx> Clean<'tcx, Item> for hir::ImplItem<'tcx> {
Expand Down Expand Up @@ -1515,7 +1514,7 @@ pub(crate) fn clean_ty<'tcx>(ty: &hir::Ty<'tcx>, cx: &mut DocContext<'tcx>) -> T
}
TyKind::Path(_) => clean_qpath(ty, cx),
TyKind::TraitObject(bounds, ref lifetime, _) => {
let bounds = bounds.iter().map(|bound| bound.clean(cx)).collect();
let bounds = bounds.iter().map(|bound| clean_poly_trait_ref(bound, cx)).collect();
let lifetime =
if !lifetime.is_elided() { Some(clean_lifetime(*lifetime, cx)) } else { None };
DynTrait(bounds, lifetime)
Expand Down Expand Up @@ -1953,8 +1952,10 @@ fn clean_maybe_renamed_item<'tcx>(
})
}
ItemKind::Trait(_, _, generics, bounds, item_ids) => {
let items =
item_ids.iter().map(|ti| cx.tcx.hir().trait_item(ti.id).clean(cx)).collect();
let items = item_ids
.iter()
.map(|ti| clean_trait_item(cx.tcx.hir().trait_item(ti.id), cx))
.collect();

TraitItem(Trait {
def_id,
Expand Down