Rollup merge of #80660 - max-heller:issue-80559-fix, r=jyn514
Properly handle primitive disambiguators in rustdoc Fixes #80559 r? ``@jyn514`` Is there a way to test that the generated intra-doc link is what I expect?
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Yuki Okushi
GitHub
commit
2e9788b298
@ -394,10 +394,14 @@ impl<'a, 'tcx> LinkCollector<'a, 'tcx> {
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ns,
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impl_,
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)
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.map(|item| match item.kind {
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ty::AssocKind::Fn => "method",
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ty::AssocKind::Const => "associatedconstant",
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ty::AssocKind::Type => "associatedtype",
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.map(|item| {
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let kind = item.kind;
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self.kind_side_channel.set(Some((kind.as_def_kind(), item.def_id)));
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match kind {
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ty::AssocKind::Fn => "method",
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ty::AssocKind::Const => "associatedconstant",
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ty::AssocKind::Type => "associatedtype",
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}
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})
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.map(|out| {
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(
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@ -1142,55 +1146,75 @@ impl LinkCollector<'_, '_> {
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callback,
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);
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};
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match res {
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Res::Primitive(_) => match disambiguator {
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Some(Disambiguator::Primitive | Disambiguator::Namespace(_)) | None => {
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Some(ItemLink { link: ori_link.link, link_text, did: None, fragment })
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}
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Some(other) => {
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report_mismatch(other, Disambiguator::Primitive);
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None
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}
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},
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Res::Def(kind, id) => {
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debug!("intra-doc link to {} resolved to {:?}", path_str, res);
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// Disallow e.g. linking to enums with `struct@`
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debug!("saw kind {:?} with disambiguator {:?}", kind, disambiguator);
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match (self.kind_side_channel.take().map(|(kind, _)| kind).unwrap_or(kind), disambiguator) {
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| (DefKind::Const | DefKind::ConstParam | DefKind::AssocConst | DefKind::AnonConst, Some(Disambiguator::Kind(DefKind::Const)))
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// NOTE: this allows 'method' to mean both normal functions and associated functions
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// This can't cause ambiguity because both are in the same namespace.
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| (DefKind::Fn | DefKind::AssocFn, Some(Disambiguator::Kind(DefKind::Fn)))
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// These are namespaces; allow anything in the namespace to match
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| (_, Some(Disambiguator::Namespace(_)))
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// If no disambiguator given, allow anything
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| (_, None)
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// All of these are valid, so do nothing
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=> {}
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(actual, Some(Disambiguator::Kind(expected))) if actual == expected => {}
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(_, Some(specified @ Disambiguator::Kind(_) | specified @ Disambiguator::Primitive)) => {
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report_mismatch(specified, Disambiguator::Kind(kind));
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return None;
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}
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}
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let verify = |kind: DefKind, id: DefId| {
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debug!("intra-doc link to {} resolved to {:?}", path_str, res);
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// item can be non-local e.g. when using #[doc(primitive = "pointer")]
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if let Some((src_id, dst_id)) = id
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.as_local()
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.and_then(|dst_id| item.def_id.as_local().map(|src_id| (src_id, dst_id)))
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// Disallow e.g. linking to enums with `struct@`
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debug!("saw kind {:?} with disambiguator {:?}", kind, disambiguator);
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match (self.kind_side_channel.take().map(|(kind, _)| kind).unwrap_or(kind), disambiguator) {
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| (DefKind::Const | DefKind::ConstParam | DefKind::AssocConst | DefKind::AnonConst, Some(Disambiguator::Kind(DefKind::Const)))
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// NOTE: this allows 'method' to mean both normal functions and associated functions
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// This can't cause ambiguity because both are in the same namespace.
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| (DefKind::Fn | DefKind::AssocFn, Some(Disambiguator::Kind(DefKind::Fn)))
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// These are namespaces; allow anything in the namespace to match
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| (_, Some(Disambiguator::Namespace(_)))
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// If no disambiguator given, allow anything
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| (_, None)
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// All of these are valid, so do nothing
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=> {}
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(actual, Some(Disambiguator::Kind(expected))) if actual == expected => {}
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(_, Some(specified @ Disambiguator::Kind(_) | specified @ Disambiguator::Primitive)) => {
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report_mismatch(specified, Disambiguator::Kind(kind));
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return None;
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}
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}
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// item can be non-local e.g. when using #[doc(primitive = "pointer")]
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if let Some((src_id, dst_id)) = id
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.as_local()
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.and_then(|dst_id| item.def_id.as_local().map(|src_id| (src_id, dst_id)))
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{
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use rustc_hir::def_id::LOCAL_CRATE;
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let hir_src = self.cx.tcx.hir().local_def_id_to_hir_id(src_id);
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let hir_dst = self.cx.tcx.hir().local_def_id_to_hir_id(dst_id);
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if self.cx.tcx.privacy_access_levels(LOCAL_CRATE).is_exported(hir_src)
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&& !self.cx.tcx.privacy_access_levels(LOCAL_CRATE).is_exported(hir_dst)
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{
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use rustc_hir::def_id::LOCAL_CRATE;
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privacy_error(cx, &item, &path_str, dox, &ori_link);
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}
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}
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let hir_src = self.cx.tcx.hir().local_def_id_to_hir_id(src_id);
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let hir_dst = self.cx.tcx.hir().local_def_id_to_hir_id(dst_id);
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Some((kind, id))
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};
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if self.cx.tcx.privacy_access_levels(LOCAL_CRATE).is_exported(hir_src)
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&& !self.cx.tcx.privacy_access_levels(LOCAL_CRATE).is_exported(hir_dst)
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{
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privacy_error(cx, &item, &path_str, dox, &ori_link);
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match res {
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Res::Primitive(_) => {
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if let Some((kind, id)) = self.kind_side_channel.take() {
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// We're actually resolving an associated item of a primitive, so we need to
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// verify the disambiguator (if any) matches the type of the associated item.
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// This case should really follow the same flow as the `Res::Def` branch below,
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// but attempting to add a call to `clean::register_res` causes an ICE. @jyn514
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// thinks `register_res` is only needed for cross-crate re-exports, but Rust
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// doesn't allow statements like `use str::trim;`, making this a (hopefully)
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// valid omission. See https://github.com/rust-lang/rust/pull/80660#discussion_r551585677
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// for discussion on the matter.
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verify(kind, id)?;
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} else {
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match disambiguator {
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Some(Disambiguator::Primitive | Disambiguator::Namespace(_)) | None => {}
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Some(other) => {
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report_mismatch(other, Disambiguator::Primitive);
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return None;
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}
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}
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}
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Some(ItemLink { link: ori_link.link, link_text, did: None, fragment })
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}
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Res::Def(kind, id) => {
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let (kind, id) = verify(kind, id)?;
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let id = clean::register_res(cx, rustc_hir::def::Res::Def(kind, id));
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Some(ItemLink { link: ori_link.link, link_text, did: Some(id), fragment })
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}
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@ -0,0 +1,3 @@
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#![deny(broken_intra_doc_links)]
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//! [static@u8::MIN]
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//~^ ERROR incompatible link kind
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@ -0,0 +1,15 @@
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error: incompatible link kind for `u8::MIN`
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--> $DIR/incompatible-primitive-disambiguator.rs:2:6
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LL | //! [static@u8::MIN]
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| ^^^^^^^^^^^^^^ help: to link to the associated constant, prefix with `const@`: `const@u8::MIN`
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note: the lint level is defined here
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--> $DIR/incompatible-primitive-disambiguator.rs:1:9
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LL | #![deny(broken_intra_doc_links)]
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| ^^^^^^^^^^^^^^^^^^^^^^
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= note: this link resolved to an associated constant, which is not a static
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error: aborting due to previous error
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4
src/test/rustdoc/intra-doc/primitive-disambiguators.rs
Normal file
4
src/test/rustdoc/intra-doc/primitive-disambiguators.rs
Normal file
@ -0,0 +1,4 @@
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#![deny(broken_intra_doc_links)]
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// @has primitive_disambiguators/index.html
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// @has - '//a/@href' 'https://doc.rust-lang.org/nightly/std/primitive.str.html#method.trim'
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//! [str::trim()]
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