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Always provide a range

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Co-authored-by: Joshua Nelson <joshua@yottadb.com>
This commit is contained in:
Dániel Buga 2020-12-31 10:11:50 +01:00
parent 2b70da1661
commit cb4317de00
2 changed files with 33 additions and 38 deletions
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14
src/librustdoc/html/markdown.rs
View File

@ -1127,7 +1127,7 @@ crate fn plain_text_summary(md: &str) -> String {
s
}
crate fn markdown_links(md: &str) -> Vec<(String, Option<Range<usize>>)> {
crate fn markdown_links(md: &str) -> Vec<(String, Range<usize>)> {
if md.is_empty() {
return vec![];
}
@ -1135,7 +1135,7 @@ crate fn markdown_links(md: &str) -> Vec<(String, Option<Range<usize>>)> {
let mut links = vec![];
let mut shortcut_links = vec![];
let locate = |s: &str| unsafe {
let locate = |s: &str, fallback: Range<usize>| unsafe {
let s_start = s.as_ptr();
let s_end = s_start.add(s.len());
let md_start = md.as_ptr();
@ -1143,16 +1143,16 @@ crate fn markdown_links(md: &str) -> Vec<(String, Option<Range<usize>>)> {
if md_start <= s_start && s_end <= md_end {
let start = s_start.offset_from(md_start) as usize;
let end = s_end.offset_from(md_start) as usize;
Some(start..end)
start..end
} else {
None
fallback
}
};
let mut push = |link: BrokenLink<'_>| {
// FIXME: use `link.span` instead of `locate`
// (doing it now includes the `[]` as well as the text)
shortcut_links.push((link.reference.to_owned(), locate(link.reference)));
shortcut_links.push((link.reference.to_owned(), locate(link.reference, link.span)));
None
};
let p = Parser::new_with_broken_link_callback(md, opts(), Some(&mut push)).into_offset_iter();
@ -1166,8 +1166,8 @@ crate fn markdown_links(md: &str) -> Vec<(String, Option<Range<usize>>)> {
if let Event::Start(Tag::Link(_, dest, _)) = ev.0 {
debug!("found link: {}", dest);
links.push(match dest {
CowStr::Borrowed(s) => (s.to_owned(), locate(s)),
s @ (CowStr::Boxed(..) | CowStr::Inlined(..)) => (s.into_string(), None),
CowStr::Borrowed(s) => (s.to_owned(), locate(s, ev.1)),
s @ (CowStr::Boxed(..) | CowStr::Inlined(..)) => (s.into_string(), ev.1),
});
}
}

57
src/librustdoc/passes/collect_intra_doc_links.rs
View File

@ -245,7 +245,7 @@ struct DiagnosticInfo<'a> {
item: &'a Item,
dox: &'a str,
ori_link: &'a str,
link_range: Option<Range<usize>>,
link_range: Range<usize>,
}
#[derive(Clone, Debug, Hash)]
@ -982,7 +982,7 @@ impl LinkCollector<'_, '_> {
parent_node: Option<DefId>,
krate: CrateNum,
ori_link: String,
link_range: Option<Range<usize>>,
link_range: Range<usize>,
) -> Option<ItemLink> {
trace!("considering link '{}'", ori_link);
@ -1628,7 +1628,7 @@ fn report_diagnostic(
msg: &str,
item: &Item,
dox: &str,
link_range: &Option<Range<usize>>,
link_range: &Range<usize>,
decorate: impl FnOnce(&mut DiagnosticBuilder<'_>, Option<rustc_span::Span>),
) {
let hir_id = match cx.as_local_hir_id(item.def_id) {
@ -1646,31 +1646,27 @@ fn report_diagnostic(
cx.tcx.struct_span_lint_hir(lint, hir_id, sp, |lint| {
let mut diag = lint.build(msg);
let span = link_range
.as_ref()
.and_then(|range| super::source_span_for_markdown_range(cx, dox, range, attrs));
let span = super::source_span_for_markdown_range(cx, dox, link_range, attrs);
if let Some(link_range) = link_range {
if let Some(sp) = span {
diag.set_span(sp);
} else {
// blah blah blah\nblah\nblah [blah] blah blah\nblah blah
// ^ ~~~~
// | link_range
// last_new_line_offset
let last_new_line_offset = dox[..link_range.start].rfind('\n').map_or(0, |n| n + 1);
let line = dox[last_new_line_offset..].lines().next().unwrap_or("");
if let Some(sp) = span {
diag.set_span(sp);
} else {
// blah blah blah\nblah\nblah [blah] blah blah\nblah blah
// ^ ~~~~
// | link_range
// last_new_line_offset
let last_new_line_offset = dox[..link_range.start].rfind('\n').map_or(0, |n| n + 1);
let line = dox[last_new_line_offset..].lines().next().unwrap_or("");
// Print the line containing the `link_range` and manually mark it with '^'s.
diag.note(&format!(
"the link appears in this line:\n\n{line}\n\
// Print the line containing the `link_range` and manually mark it with '^'s.
diag.note(&format!(
"the link appears in this line:\n\n{line}\n\
{indicator: <before$}{indicator:^<found$}",
line = line,
indicator = "",
before = link_range.start - last_new_line_offset,
found = link_range.len(),
));
}
line = line,
indicator = "",
before = link_range.start - last_new_line_offset,
found = link_range.len(),
));
}
decorate(&mut diag, span);
@ -1690,7 +1686,7 @@ fn resolution_failure(
path_str: &str,
disambiguator: Option<Disambiguator>,
dox: &str,
link_range: Option<Range<usize>>,
link_range: Range<usize>,
kinds: SmallVec<[ResolutionFailure<'_>; 3]>,
) {
let tcx = collector.cx.tcx;
@ -1914,7 +1910,7 @@ fn anchor_failure(
item: &Item,
path_str: &str,
dox: &str,
link_range: Option<Range<usize>>,
link_range: Range<usize>,
failure: AnchorFailure,
) {
let msg = match failure {
@ -1939,7 +1935,7 @@ fn ambiguity_error(
item: &Item,
path_str: &str,
dox: &str,
link_range: Option<Range<usize>>,
link_range: Range<usize>,
candidates: Vec<Res>,
) {
let mut msg = format!("`{}` is ", path_str);
@ -1988,13 +1984,12 @@ fn suggest_disambiguator(
path_str: &str,
dox: &str,
sp: Option<rustc_span::Span>,
link_range: &Option<Range<usize>>,
link_range: &Range<usize>,
) {
let suggestion = disambiguator.suggestion();
let help = format!("to link to the {}, {}", disambiguator.descr(), suggestion.descr());
if let Some(sp) = sp {
let link_range = link_range.as_ref().expect("must have a link range if we have a span");
let msg = if dox.bytes().nth(link_range.start) == Some(b'`') {
format!("`{}`", suggestion.as_help(path_str))
} else {
@ -2013,7 +2008,7 @@ fn privacy_error(
item: &Item,
path_str: &str,
dox: &str,
link_range: Option<Range<usize>>,
link_range: Range<usize>,
) {
let sym;
let item_name = match item.name {