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Improve documentation for intra-doc links computation

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This commit is contained in:
Guillaume Gomez 2024-10-15 01:58:27 +02:00
parent d540e7285c
commit 2b9e41c128
3 changed files with 11 additions and 11 deletions
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18
src/librustdoc/passes/collect_intra_doc_links.rs
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@ -288,14 +288,16 @@ pub(crate) struct LinkCollector<'a, 'tcx> {
/// Cache the resolved links so we can avoid resolving (and emitting errors for) the same link.
/// The link will be `None` if it could not be resolved (i.e. the error was cached).
pub(crate) visited_links: FxHashMap<ResolutionInfo, Option<(Res, Option<UrlFragment>)>>,
/// These links are ambiguous. We need for the cache to have its paths filled. Unfortunately,
/// if we run the `LinkCollector` pass after `Cache::populate`, a lot of items that we need
/// to go through will be removed, making a lot of intra-doc links to not be inferred.
/// According to `rustc_resolve`, these links are ambiguous.
///
/// So instead, we store the ambiguous links and we wait for cache paths to be filled before
/// inferring them (if possible).
/// However, we cannot link to an item that has been stripped from the documentation. If all
/// but one of the "possibilities" are stripped, then there is no real ambiguity. To determine
/// if an ambiguity is real, we delay resolving them until after `Cache::populate`, then filter
/// every item that doesn't have a cached path.
///
/// Key is `(item ID, path str)`.
/// We could get correct results by simply delaying everything. This would have fewer happy
/// codepaths, but we want to distinguish different kinds of error conditions, and this is easy
/// to do by resolving links as soon as possible.
pub(crate) ambiguous_links: FxIndexMap<(ItemId, String), Vec<AmbiguousLinks>>,
}
@ -1187,9 +1189,7 @@ pub(crate) fn resolve_ambiguities(&mut self) {
report_diagnostic(
self.cx.tcx,
BROKEN_INTRA_DOC_LINKS,
format!(
"all items matching `{path_str}` are either private or doc(hidden)"
),
format!("all items matching `{path_str}` are private or doc(hidden)"),
&diag_info,
|diag, sp, _| {
if let Some(sp) = sp {

2
tests/rustdoc-ui/intra-doc/filter-out-private-2.rs
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@ -11,5 +11,5 @@ pub struct Thing {}
pub fn Thing() {}
/// Do stuff with [`Thing`].
//~^ ERROR all items matching `Thing` are either private or doc(hidden)
//~^ ERROR all items matching `Thing` are private or doc(hidden)
pub fn repro(_: Thing) {}

2
tests/rustdoc-ui/intra-doc/filter-out-private-2.stderr
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@ -1,4 +1,4 @@
error: all items matching `Thing` are either private or doc(hidden)
error: all items matching `Thing` are private or doc(hidden)
--> $DIR/filter-out-private-2.rs:13:21
|
LL | /// Do stuff with [`Thing`].