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Remove unnecessary is_trait argument

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It was only used for sugaring `Fn` trait bounds, and rustdoc already
checks that the `did` is for a `Fn` (or `FnMut`, `FnOnce`) lang item,
so it's not necessary to also check that the `did` belongs to a trait.
This commit is contained in:
Noah Lev
2021-09-11 15:55:21 -07:00
parent 5321b35a5a
commit 913764dcef
3 changed files with 8 additions and 13 deletions
Download Patch File Download Diff File Expand all files Collapse all files
src/librustdoc/clean/mod.rs
+5 -6
View File
@@ -164,8 +164,7 @@ fn clean(&self, cx: &mut DocContext<'_>) -> Type {
);
}
inline::record_extern_fqn(cx, trait_ref.def_id, kind);
let path =
external_path(cx, trait_ref.def_id, true, true, bounds.to_vec(), trait_ref.substs);
let path = external_path(cx, trait_ref.def_id, true, bounds.to_vec(), trait_ref.substs);
debug!("ty::TraitRef\n subst: {:?}\n", trait_ref.substs);
@@ -1442,12 +1441,12 @@ fn clean(&self, cx: &mut DocContext<'_>) -> Type {
AdtKind::Enum => ItemType::Enum,
};
inline::record_extern_fqn(cx, did, kind);
let path = external_path(cx, did, false, false, vec![], substs);
let path = external_path(cx, did, false, vec![], substs);
ResolvedPath { path, did, is_generic: false }
}
ty::Foreign(did) => {
inline::record_extern_fqn(cx, did, ItemType::ForeignType);
let path = external_path(cx, did, false, false, vec![], InternalSubsts::empty());
let path = external_path(cx, did, false, vec![], InternalSubsts::empty());
ResolvedPath { path, did, is_generic: false }
}
ty::Dynamic(ref obj, ref reg) => {
@@ -1471,7 +1470,7 @@ fn clean(&self, cx: &mut DocContext<'_>) -> Type {
for did in dids {
let empty = cx.tcx.intern_substs(&[]);
let path = external_path(cx, did, true, false, vec![], empty);
let path = external_path(cx, did, false, vec![], empty);
inline::record_extern_fqn(cx, did, ItemType::Trait);
let bound = PolyTrait {
trait_: ResolvedPath { path, did, is_generic: false },
@@ -1488,7 +1487,7 @@ fn clean(&self, cx: &mut DocContext<'_>) -> Type {
});
}
let path = external_path(cx, did, true, false, bindings, substs);
let path = external_path(cx, did, false, bindings, substs);
bounds.insert(
0,
PolyTrait {
src/librustdoc/clean/types.rs
+1 -1
View File
@@ -1158,7 +1158,7 @@ impl GenericBound {
crate fn maybe_sized(cx: &mut DocContext<'_>) -> GenericBound {
let did = cx.tcx.require_lang_item(LangItem::Sized, None);
let empty = cx.tcx.intern_substs(&[]);
let path = external_path(cx, did, true, false, vec![], empty);
let path = external_path(cx, did, false, vec![], empty);
inline::record_extern_fqn(cx, did, ItemType::Trait);
GenericBound::TraitBound(
PolyTrait {
src/librustdoc/clean/utils.rs
+2 -6
View File
@@ -94,7 +94,6 @@
fn external_generic_args(
cx: &mut DocContext<'_>,
did: DefId,
is_trait: bool,
has_self: bool,
bindings: Vec<TypeBinding>,
substs: SubstsRef<'_>,
@@ -122,7 +121,7 @@ fn external_generic_args(
})
.collect();
if is_trait && cx.tcx.fn_trait_kind_from_lang_item(did).is_some() {
if cx.tcx.fn_trait_kind_from_lang_item(did).is_some() {
assert!(ty_kind.is_some());
let inputs = match ty_kind {
Some(ty::Tuple(ref tys)) => tys.iter().map(|t| t.expect_ty().clean(cx)).collect(),
@@ -140,12 +139,9 @@ fn external_generic_args(
}
}
/// `is_trait` should be set to `true` if called on a `TraitRef`, in order to sugar
/// from `Fn<(A, B,), C>` to `Fn(A, B) -> C`
pub(super) fn external_path(
cx: &mut DocContext<'_>,
did: DefId,
is_trait: bool,
has_self: bool,
bindings: Vec<TypeBinding>,
substs: SubstsRef<'_>,
@@ -157,7 +153,7 @@ pub(super) fn external_path(
res: Res::Def(def_kind, did),
segments: vec![PathSegment {
name,
args: external_generic_args(cx, did, is_trait, has_self, bindings, substs),
args: external_generic_args(cx, did, has_self, bindings, substs),
}],
}
}