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rustdoc: show implementations on #[fundamental] wrappers

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Fixes #92940
This commit is contained in:
Michael Howell 2022-04-29 14:01:57 -07:00
parent 1c8966e5e9
commit 62b9e0643b
2 changed files with 26 additions and 1 deletions
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11
src/librustdoc/formats/cache.rs
View File

@ -3,7 +3,7 @@
use rustc_data_structures::fx::{FxHashMap, FxHashSet};
use rustc_hir::def_id::{CrateNum, DefId};
use rustc_middle::middle::privacy::AccessLevels;
use rustc_middle::ty::TyCtxt;
use rustc_middle::ty::{self, TyCtxt};
use rustc_span::{sym, Symbol};
use crate::clean::{self, types::ExternalLocation, ExternalCrate, ItemId, PrimitiveType};
@ -450,6 +450,15 @@ fn fold_item(&mut self, item: clean::Item) -> Option<clean::Item> {
clean::Type::Path { ref path }
| clean::BorrowedRef { type_: box clean::Type::Path { ref path }, .. } => {
dids.insert(path.def_id());
if let Some(generics) = path.generics() &&
let ty::Adt(adt, _) = self.tcx.type_of(path.def_id()).kind() &&
adt.is_fundamental() {
for ty in generics {
if let Some(did) = ty.def_id(&self.cache) {
dids.insert(did);
}
}
}
}
clean::DynTrait(ref bounds, _)
| clean::BorrowedRef { type_: box clean::DynTrait(ref bounds, _), .. } => {

16
src/test/rustdoc/impl-box.rs Normal file
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@ -0,0 +1,16 @@
// https://github.com/rust-lang/rust/issues/92940
//
// Show traits implemented on fundamental types that wrap local ones.
pub struct MyType;
// @has 'impl_box/struct.MyType.html'
// @has '-' '//*[@id="impl-Iterator"]' 'impl Iterator for Box<MyType>'
impl Iterator for Box<MyType> {
type Item = ();
fn next(&mut self) -> Option<Self::Item> {
todo!()
}
}