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Use impls for intra doc links as well

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This commit is contained in:
Joshua Nelson 2020-08-17 18:54:29 -04:00
parent 9cf2fa84e8
commit 219e93d91e
3 changed files with 20 additions and 36 deletions
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2
Cargo.lock
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@ -4106,7 +4106,7 @@ dependencies = [
"rustc-rayon",
"serde",
"serde_json",
"smallvec 1.4.0",
"smallvec 1.4.2",
"tempfile",
]

2
src/librustdoc/clean/types.rs
View file

@ -1267,7 +1267,7 @@ impl PrimitiveType {
}
}
pub fn impls(&self, tcx: TyCtxt<'_>) -> &SmallVec<[DefId; 4]> {
pub fn impls(&self, tcx: TyCtxt<'_>) -> &'static SmallVec<[DefId; 4]> {
Self::all_impls(tcx).get(self).expect("missing impl for primitive type")
}

52
src/librustdoc/passes/collect_intra_doc_links.rs
View file

@ -16,6 +16,7 @@ use rustc_span::hygiene::MacroKind;
use rustc_span::symbol::Ident;
use rustc_span::symbol::Symbol;
use rustc_span::DUMMY_SP;
use smallvec::SmallVec;
use std::cell::Cell;
use std::ops::Range;
@ -270,18 +271,21 @@ impl<'a, 'tcx> LinkCollector<'a, 'tcx> {
.ok_or(ErrorKind::ResolutionFailure)?;
if let Some((path, prim)) = is_primitive(&path, TypeNS) {
let did = primitive_impl(cx, &path).ok_or(ErrorKind::ResolutionFailure)?;
return cx
.tcx
.associated_items(did)
.filter_by_name_unhygienic(item_name)
.next()
.and_then(|item| match item.kind {
ty::AssocKind::Fn => Some("method"),
_ => None,
})
.map(|out| (prim, Some(format!("{}#{}.{}", path, out, item_name))))
.ok_or(ErrorKind::ResolutionFailure);
for &impl_ in primitive_impl(cx, &path).ok_or(ErrorKind::ResolutionFailure)? {
let link = cx
.tcx
.associated_items(impl_)
.find_by_name_and_namespace(cx.tcx, Ident::with_dummy_span(item_name), ns, impl_)
.and_then(|item| match item.kind {
ty::AssocKind::Fn => Some("method"),
_ => None,
})
.map(|out| (prim, Some(format!("{}#{}.{}", path, out, item_name))));
if let Some(link) = link {
return Ok(link);
}
}
return Err(ErrorKind::ResolutionFailure);
}
let (_, ty_res) = cx
@ -1238,26 +1242,6 @@ fn is_primitive(path_str: &str, ns: Namespace) -> Option<(&'static str, Res)> {
}
}
fn primitive_impl(cx: &DocContext<'_>, path_str: &str) -> Option<DefId> {
let tcx = cx.tcx;
match path_str {
"u8" => tcx.lang_items().u8_impl(),
"u16" => tcx.lang_items().u16_impl(),
"u32" => tcx.lang_items().u32_impl(),
"u64" => tcx.lang_items().u64_impl(),
"u128" => tcx.lang_items().u128_impl(),
"usize" => tcx.lang_items().usize_impl(),
"i8" => tcx.lang_items().i8_impl(),
"i16" => tcx.lang_items().i16_impl(),
"i32" => tcx.lang_items().i32_impl(),
"i64" => tcx.lang_items().i64_impl(),
"i128" => tcx.lang_items().i128_impl(),
"isize" => tcx.lang_items().isize_impl(),
"f32" => tcx.lang_items().f32_impl(),
"f64" => tcx.lang_items().f64_impl(),
"str" => tcx.lang_items().str_impl(),
"bool" => tcx.lang_items().bool_impl(),
"char" => tcx.lang_items().char_impl(),
_ => None,
}
fn primitive_impl(cx: &DocContext<'_>, path_str: &str) -> Option<&'static SmallVec<[DefId; 4]>> {
Some(PrimitiveType::from_symbol(Symbol::intern(path_str))?.impls(cx.tcx))
}