rustdoc: update to pulldown-cmark 0.11

8 files changed, 94 insertions, 81 deletions

diff --git a/Cargo.lock b/Cargo.lock
index 94d70a020a4..3af90a252ae 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -3123,25 +3123,26 @@ dependencies = [
 
 [[package]]
 name = "pulldown-cmark"
-version = "0.9.6"
+version = "0.10.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "57206b407293d2bcd3af849ce869d52068623f19e1b5ff8e8778e3309439682b"
+checksum = "76979bea66e7875e7509c4ec5300112b316af87fa7a252ca91c448b32dfe3993"
 dependencies = [
  "bitflags 2.5.0",
+ "getopts",
  "memchr",
+ "pulldown-cmark-escape 0.10.1",
  "unicase",
 ]
 
 [[package]]
 name = "pulldown-cmark"
-version = "0.10.3"
+version = "0.11.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "76979bea66e7875e7509c4ec5300112b316af87fa7a252ca91c448b32dfe3993"
+checksum = "8746739f11d39ce5ad5c2520a9b75285310dbfe78c541ccf832d38615765aec0"
 dependencies = [
  "bitflags 2.5.0",
- "getopts",
  "memchr",
- "pulldown-cmark-escape",
+ "pulldown-cmark-escape 0.11.0",
  "unicase",
 ]
 
@@ -3152,6 +3153,12 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "bd348ff538bc9caeda7ee8cad2d1d48236a1f443c1fa3913c6a02fe0043b1dd3"
 
 [[package]]
+name = "pulldown-cmark-escape"
+version = "0.11.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "007d8adb5ddab6f8e3f491ac63566a7d5002cc7ed73901f72057943fa71ae1ae"
+
+[[package]]
 name = "pulldown-cmark-to-cmark"
 version = "13.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -4604,7 +4611,7 @@ name = "rustc_resolve"
 version = "0.0.0"
 dependencies = [
  "bitflags 2.5.0",
- "pulldown-cmark 0.9.6",
+ "pulldown-cmark 0.11.0",
  "rustc_arena",
  "rustc_ast",
  "rustc_ast_pretty",
diff --git a/compiler/rustc_resolve/Cargo.toml b/compiler/rustc_resolve/Cargo.toml
index b6ae54010c2..b71853b871d 100644
--- a/compiler/rustc_resolve/Cargo.toml
+++ b/compiler/rustc_resolve/Cargo.toml
@@ -6,7 +6,7 @@ edition = "2021"
 [dependencies]
 # tidy-alphabetical-start
 bitflags = "2.4.1"
-pulldown-cmark = { version = "0.9.6", default-features = false }
+pulldown-cmark = { version = "0.11", features = ["html"], default-features = false }
 rustc_arena = { path = "../rustc_arena" }
 rustc_ast = { path = "../rustc_ast" }
 rustc_ast_pretty = { path = "../rustc_ast_pretty" }
diff --git a/compiler/rustc_resolve/src/rustdoc.rs b/compiler/rustc_resolve/src/rustdoc.rs
index 66b4981eb55..59460815321 100644
--- a/compiler/rustc_resolve/src/rustdoc.rs
+++ b/compiler/rustc_resolve/src/rustdoc.rs
@@ -1,4 +1,6 @@
-use pulldown_cmark::{BrokenLink, CowStr, Event, LinkType, Options, Parser, Tag};
+use pulldown_cmark::{
+    BrokenLink, BrokenLinkCallback, CowStr, Event, LinkType, Options, Parser, Tag,
+};
 use rustc_ast as ast;
 use rustc_ast::util::comments::beautify_doc_string;
 use rustc_data_structures::fx::FxHashMap;
@@ -427,7 +429,9 @@ fn parse_links<'md>(doc: &'md str) -> Vec<Box<str>> {
 
     while let Some(event) = event_iter.next() {
         match event {
-            Event::Start(Tag::Link(link_type, dest, _)) if may_be_doc_link(link_type) => {
+            Event::Start(Tag::Link { link_type, dest_url, title: _, id: _ })
+                if may_be_doc_link(link_type) =>
+            {
                 if matches!(
                     link_type,
                     LinkType::Inline
@@ -441,7 +445,7 @@ fn parse_links<'md>(doc: &'md str) -> Vec<Box<str>> {
                     }
                 }
 
-                links.push(preprocess_link(&dest));
+                links.push(preprocess_link(&dest_url));
             }
             _ => {}
         }
@@ -451,8 +455,8 @@ fn parse_links<'md>(doc: &'md str) -> Vec<Box<str>> {
 }
 
 /// Collects additional data of link.
-fn collect_link_data<'input, 'callback>(
-    event_iter: &mut Parser<'input, 'callback>,
+fn collect_link_data<'input, F: BrokenLinkCallback<'input>>(
+    event_iter: &mut Parser<'input, F>,
 ) -> Option<Box<str>> {
     let mut display_text: Option<String> = None;
     let mut append_text = |text: CowStr<'_>| {
diff --git a/src/librustdoc/html/markdown.rs b/src/librustdoc/html/markdown.rs
index bae929c64ea..a7f0df5afa9 100644
--- a/src/librustdoc/html/markdown.rs
+++ b/src/librustdoc/html/markdown.rs
@@ -54,7 +54,8 @@ use crate::html::render::small_url_encode;
 use crate::html::toc::TocBuilder;
 
 use pulldown_cmark::{
-    html, BrokenLink, CodeBlockKind, CowStr, Event, LinkType, OffsetIter, Options, Parser, Tag,
+    html, BrokenLink, BrokenLinkCallback, CodeBlockKind, CowStr, Event, LinkType, OffsetIter,
+    Options, Parser, Tag, TagEnd,
 };
 
 #[cfg(test)]
@@ -230,7 +231,7 @@ impl<'a, I: Iterator<Item = Event<'a>>> Iterator for CodeBlocks<'_, 'a, I> {
         let mut original_text = String::new();
         for event in &mut self.inner {
             match event {
-                Event::End(Tag::CodeBlock(..)) => break,
+                Event::End(TagEnd::CodeBlock) => break,
                 Event::Text(ref s) => {
                     original_text.push_str(s);
                 }
@@ -359,16 +360,17 @@ impl<'a, I: Iterator<Item = Event<'a>>> Iterator for LinkReplacer<'a, I> {
         match &mut event {
             // This is a shortcut link that was resolved by the broken_link_callback: `[fn@f]`
             // Remove any disambiguator.
-            Some(Event::Start(Tag::Link(
+            Some(Event::Start(Tag::Link {
                 // [fn@f] or [fn@f][]
-                LinkType::ShortcutUnknown | LinkType::CollapsedUnknown,
-                dest,
+                link_type: LinkType::ShortcutUnknown | LinkType::CollapsedUnknown,
+                dest_url,
                 title,
-            ))) => {
-                debug!("saw start of shortcut link to {dest} with title {title}");
+                ..
+            })) => {
+                debug!("saw start of shortcut link to {dest_url} with title {title}");
                 // If this is a shortcut link, it was resolved by the broken_link_callback.
                 // So the URL will already be updated properly.
-                let link = self.links.iter().find(|&link| *link.href == **dest);
+                let link = self.links.iter().find(|&link| *link.href == **dest_url);
                 // Since this is an external iterator, we can't replace the inner text just yet.
                 // Store that we saw a link so we know to replace it later.
                 if let Some(link) = link {
@@ -381,16 +383,9 @@ impl<'a, I: Iterator<Item = Event<'a>>> Iterator for LinkReplacer<'a, I> {
                 }
             }
             // Now that we're done with the shortcut link, don't replace any more text.
-            Some(Event::End(Tag::Link(
-                LinkType::ShortcutUnknown | LinkType::CollapsedUnknown,
-                dest,
-                _,
-            ))) => {
-                debug!("saw end of shortcut link to {dest}");
-                if self.links.iter().any(|link| *link.href == **dest) {
-                    assert!(self.shortcut_link.is_some(), "saw closing link without opening tag");
-                    self.shortcut_link = None;
-                }
+            Some(Event::End(TagEnd::Link)) if self.shortcut_link.is_some() => {
+                debug!("saw end of shortcut link");
+                self.shortcut_link = None;
             }
             // Handle backticks in inline code blocks, but only if we're in the middle of a shortcut link.
             // [`fn@f`]
@@ -433,9 +428,11 @@ impl<'a, I: Iterator<Item = Event<'a>>> Iterator for LinkReplacer<'a, I> {
             }
             // If this is a link, but not a shortcut link,
             // replace the URL, since the broken_link_callback was not called.
-            Some(Event::Start(Tag::Link(_, dest, title))) => {
-                if let Some(link) = self.links.iter().find(|&link| *link.original_text == **dest) {
-                    *dest = CowStr::Borrowed(link.href.as_ref());
+            Some(Event::Start(Tag::Link { dest_url, title, .. })) => {
+                if let Some(link) =
+                    self.links.iter().find(|&link| *link.original_text == **dest_url)
+                {
+                    *dest_url = CowStr::Borrowed(link.href.as_ref());
                     if title.is_empty() && !link.tooltip.is_empty() {
                         *title = CowStr::Borrowed(link.tooltip.as_ref());
                     }
@@ -477,9 +474,9 @@ impl<'a, I: Iterator<Item = Event<'a>>> Iterator for TableWrapper<'a, I> {
                 self.stored_events.push_back(Event::Start(Tag::Table(t)));
                 Event::Html(CowStr::Borrowed("<div>"))
             }
-            Event::End(Tag::Table(t)) => {
+            Event::End(TagEnd::Table) => {
                 self.stored_events.push_back(Event::Html(CowStr::Borrowed("</div>")));
-                Event::End(Tag::Table(t))
+                Event::End(TagEnd::Table)
             }
             e => e,
         })
@@ -519,11 +516,11 @@ impl<'a, 'b, 'ids, I: Iterator<Item = SpannedEvent<'a>>> Iterator
         }
 
         let event = self.inner.next();
-        if let Some((Event::Start(Tag::Heading(level, _, _)), _)) = event {
+        if let Some((Event::Start(Tag::Heading { level, .. }), _)) = event {
             let mut id = String::new();
             for event in &mut self.inner {
                 match &event.0 {
-                    Event::End(Tag::Heading(..)) => break,
+                    Event::End(TagEnd::Heading(_)) => break,
                     Event::Text(text) | Event::Code(text) => {
                         id.extend(text.chars().filter_map(slugify));
                         self.buf.push_back(event);
@@ -566,27 +563,27 @@ impl<'a, I: Iterator<Item = Event<'a>>> SummaryLine<'a, I> {
     }
 }
 
-fn check_if_allowed_tag(t: &Tag<'_>) -> bool {
+fn check_if_allowed_tag(t: &TagEnd) -> bool {
     matches!(
         t,
-        Tag::Paragraph
-            | Tag::Emphasis
-            | Tag::Strong
-            | Tag::Strikethrough
-            | Tag::Link(..)
-            | Tag::BlockQuote
+        TagEnd::Paragraph
+            | TagEnd::Emphasis
+            | TagEnd::Strong
+            | TagEnd::Strikethrough
+            | TagEnd::Link
+            | TagEnd::BlockQuote
     )
 }
 
-fn is_forbidden_tag(t: &Tag<'_>) -> bool {
+fn is_forbidden_tag(t: &TagEnd) -> bool {
     matches!(
         t,
-        Tag::CodeBlock(_)
-            | Tag::Table(_)
-            | Tag::TableHead
-            | Tag::TableRow
-            | Tag::TableCell
-            | Tag::FootnoteDefinition(_)
+        TagEnd::CodeBlock
+            | TagEnd::Table
+            | TagEnd::TableHead
+            | TagEnd::TableRow
+            | TagEnd::TableCell
+            | TagEnd::FootnoteDefinition
     )
 }
 
@@ -604,12 +601,12 @@ impl<'a, I: Iterator<Item = Event<'a>>> Iterator for SummaryLine<'a, I> {
             let mut is_start = true;
             let is_allowed_tag = match event {
                 Event::Start(ref c) => {
-                    if is_forbidden_tag(c) {
+                    if is_forbidden_tag(&c.to_end()) {
                         self.skipped_tags += 1;
                         return None;
                     }
                     self.depth += 1;
-                    check_if_allowed_tag(c)
+                    check_if_allowed_tag(&c.to_end())
                 }
                 Event::End(ref c) => {
                     if is_forbidden_tag(c) {
@@ -633,7 +630,7 @@ impl<'a, I: Iterator<Item = Event<'a>>> Iterator for SummaryLine<'a, I> {
                 if is_start {
                     Some(Event::Start(Tag::Paragraph))
                 } else {
-                    Some(Event::End(Tag::Paragraph))
+                    Some(Event::End(TagEnd::Paragraph))
                 }
             } else {
                 Some(event)
@@ -679,7 +676,7 @@ impl<'a, I: Iterator<Item = SpannedEvent<'a>>> Iterator for Footnotes<'a, I> {
                 Some((Event::Start(Tag::FootnoteDefinition(def)), _)) => {
                     let mut content = Vec::new();
                     for (event, _) in &mut self.inner {
-                        if let Event::End(Tag::FootnoteDefinition(..)) = event {
+                        if let Event::End(TagEnd::FootnoteDefinition) = event {
                             break;
                         }
                         content.push(event);
@@ -696,7 +693,7 @@ impl<'a, I: Iterator<Item = SpannedEvent<'a>>> Iterator for Footnotes<'a, I> {
                         for (mut content, id) in v {
                             write!(ret, "<li id=\"fn{id}\">").unwrap();
                             let mut is_paragraph = false;
-                            if let Some(&Event::End(Tag::Paragraph)) = content.last() {
+                            if let Some(&Event::End(TagEnd::Paragraph)) = content.last() {
                                 content.pop();
                                 is_paragraph = true;
                             }
@@ -806,7 +803,7 @@ pub(crate) fn find_codes<T: doctest::DoctestVisitor>(
                 tests.visit_test(text, block_info, line);
                 prev_offset = offset.start;
             }
-            Event::Start(Tag::Heading(level, _, _)) => {
+            Event::Start(Tag::Heading { level, .. }) => {
                 register_header = Some(level as u32);
             }
             Event::Text(ref s) if register_header.is_some() => {
@@ -1432,7 +1429,7 @@ impl MarkdownItemInfo<'_> {
 
         // Treat inline HTML as plain text.
         let p = p.map(|event| match event.0 {
-            Event::Html(text) => (Event::Text(text), event.1),
+            Event::Html(text) | Event::InlineHtml(text) => (Event::Text(text), event.1),
             _ => event,
         });
 
@@ -1442,7 +1439,7 @@ impl MarkdownItemInfo<'_> {
         let p = Footnotes::new(p);
         let p = TableWrapper::new(p.map(|(ev, _)| ev));
         let p = p.filter(|event| {
-            !matches!(event, Event::Start(Tag::Paragraph) | Event::End(Tag::Paragraph))
+            !matches!(event, Event::Start(Tag::Paragraph) | Event::End(TagEnd::Paragraph))
         });
         html::push_html(&mut s, p);
 
@@ -1472,7 +1469,7 @@ impl MarkdownSummaryLine<'_> {
         let mut s = String::new();
 
         let without_paragraphs = LinkReplacer::new(&mut summary, links).filter(|event| {
-            !matches!(event, Event::Start(Tag::Paragraph) | Event::End(Tag::Paragraph))
+            !matches!(event, Event::Start(Tag::Paragraph) | Event::End(TagEnd::Paragraph))
         });
 
         html::push_html(&mut s, without_paragraphs);
@@ -1544,8 +1541,8 @@ fn markdown_summary_with_limit(
                 _ => {}
             },
             Event::End(tag) => match tag {
-                Tag::Emphasis | Tag::Strong => buf.close_tag(),
-                Tag::Paragraph | Tag::Heading(..) => return ControlFlow::Break(()),
+                TagEnd::Emphasis | TagEnd::Strong => buf.close_tag(),
+                TagEnd::Paragraph | TagEnd::Heading(_) => return ControlFlow::Break(()),
                 _ => {}
             },
             Event::HardBreak | Event::SoftBreak => buf.push(" ")?,
@@ -1605,8 +1602,8 @@ pub(crate) fn plain_text_summary(md: &str, link_names: &[RenderedLink]) -> Strin
             }
             Event::HardBreak | Event::SoftBreak => s.push(' '),
             Event::Start(Tag::CodeBlock(..)) => break,
-            Event::End(Tag::Paragraph) => break,
-            Event::End(Tag::Heading(..)) => break,
+            Event::End(TagEnd::Paragraph) => break,
+            Event::End(TagEnd::Heading(..)) => break,
             _ => (),
         }
     }
@@ -1765,7 +1762,7 @@ pub(crate) fn markdown_links<'md, R>(
 
     while let Some((event, span)) = event_iter.next() {
         match event {
-            Event::Start(Tag::Link(link_type, dest, _)) if may_be_doc_link(link_type) => {
+            Event::Start(Tag::Link { link_type, dest_url, .. }) if may_be_doc_link(link_type) => {
                 let range = match link_type {
                     // Link is pulled from the link itself.
                     LinkType::ReferenceUnknown | LinkType::ShortcutUnknown => {
@@ -1775,7 +1772,7 @@ pub(crate) fn markdown_links<'md, R>(
                     LinkType::Inline => span_for_offset_backward(span, b'(', b')'),
                     // Link is pulled from elsewhere in the document.
                     LinkType::Reference | LinkType::Collapsed | LinkType::Shortcut => {
-                        span_for_link(&dest, span)
+                        span_for_link(&dest_url, span)
                     }
                     LinkType::Autolink | LinkType::Email => unreachable!(),
                 };
@@ -1795,7 +1792,7 @@ pub(crate) fn markdown_links<'md, R>(
 
                 if let Some(link) = preprocess_link(MarkdownLink {
                     kind: link_type,
-                    link: dest.into_string(),
+                    link: dest_url.into_string(),
                     display_text,
                     range,
                 }) {
@@ -1810,8 +1807,8 @@ pub(crate) fn markdown_links<'md, R>(
 }
 
 /// Collects additional data of link.
-fn collect_link_data<'input, 'callback>(
-    event_iter: &mut OffsetIter<'input, 'callback>,
+fn collect_link_data<'input, F: BrokenLinkCallback<'input>>(
+    event_iter: &mut OffsetIter<'input, F>,
 ) -> Option<String> {
     let mut display_text: Option<String> = None;
     let mut append_text = |text: CowStr<'_>| {
diff --git a/src/librustdoc/passes/lint/bare_urls.rs b/src/librustdoc/passes/lint/bare_urls.rs
index 8f68f6ff476..4b2d3092837 100644
--- a/src/librustdoc/passes/lint/bare_urls.rs
+++ b/src/librustdoc/passes/lint/bare_urls.rs
@@ -42,11 +42,11 @@ pub(super) fn visit_item(cx: &DocContext<'_>, item: &Item) {
             match event {
                 Event::Text(s) => find_raw_urls(cx, &s, range, &report_diag),
                 // We don't want to check the text inside code blocks or links.
-                Event::Start(tag @ (Tag::CodeBlock(_) | Tag::Link(..))) => {
+                Event::Start(tag @ (Tag::CodeBlock(_) | Tag::Link { .. })) => {
                     while let Some((event, _)) = p.next() {
                         match event {
                             Event::End(end)
-                                if mem::discriminant(&end) == mem::discriminant(&tag) =>
+                                if mem::discriminant(&end) == mem::discriminant(&tag.to_end()) =>
                             {
                                 break;
                             }
diff --git a/src/librustdoc/passes/lint/html_tags.rs b/src/librustdoc/passes/lint/html_tags.rs
index a0064a90112..87dfa5d5389 100644
--- a/src/librustdoc/passes/lint/html_tags.rs
+++ b/src/librustdoc/passes/lint/html_tags.rs
@@ -4,7 +4,7 @@ use crate::clean::*;
 use crate::core::DocContext;
 use crate::html::markdown::main_body_opts;
 
-use pulldown_cmark::{BrokenLink, Event, LinkType, Parser, Tag};
+use pulldown_cmark::{BrokenLink, Event, LinkType, Parser, Tag, TagEnd};
 use rustc_resolve::rustdoc::source_span_for_markdown_range;
 
 use std::iter::Peekable;
@@ -140,10 +140,10 @@ pub(crate) fn visit_item(cx: &DocContext<'_>, item: &Item) {
         for (event, range) in p {
             match event {
                 Event::Start(Tag::CodeBlock(_)) => in_code_block = true,
-                Event::Html(text) if !in_code_block => {
+                Event::Html(text) | Event::InlineHtml(text) if !in_code_block => {
                     extract_tags(&mut tags, &text, range, &mut is_in_comment, &report_diag)
                 }
-                Event::End(Tag::CodeBlock(_)) => in_code_block = false,
+                Event::End(TagEnd::CodeBlock) => in_code_block = false,
                 _ => {}
             }
         }
diff --git a/src/librustdoc/passes/lint/redundant_explicit_links.rs b/src/librustdoc/passes/lint/redundant_explicit_links.rs
index 7ab974046b9..b36b41c9f2d 100644
--- a/src/librustdoc/passes/lint/redundant_explicit_links.rs
+++ b/src/librustdoc/passes/lint/redundant_explicit_links.rs
@@ -1,6 +1,8 @@
 use std::ops::Range;
 
-use pulldown_cmark::{BrokenLink, CowStr, Event, LinkType, OffsetIter, Parser, Tag};
+use pulldown_cmark::{
+    BrokenLink, BrokenLinkCallback, CowStr, Event, LinkType, OffsetIter, Parser, Tag,
+};
 use rustc_ast::NodeId;
 use rustc_errors::SuggestionStyle;
 use rustc_hir::def::{DefKind, DocLinkResMap, Namespace, Res};
@@ -95,7 +97,7 @@ fn check_redundant_explicit_link<'md>(
 
     while let Some((event, link_range)) = offset_iter.next() {
         match event {
-            Event::Start(Tag::Link(link_type, dest, _)) => {
+            Event::Start(Tag::Link { link_type, dest_url, .. }) => {
                 let link_data = collect_link_data(&mut offset_iter);
 
                 if let Some(resolvable_link) = link_data.resolvable_link.as_ref() {
@@ -108,7 +110,7 @@ fn check_redundant_explicit_link<'md>(
                     }
                 }
 
-                let explicit_link = dest.to_string();
+                let explicit_link = dest_url.to_string();
                 let display_link = link_data.resolvable_link.clone()?;
 
                 if explicit_link.ends_with(&display_link) || display_link.ends_with(&explicit_link)
@@ -122,7 +124,7 @@ fn check_redundant_explicit_link<'md>(
                                 doc,
                                 resolutions,
                                 link_range,
-                                dest.to_string(),
+                                dest_url.to_string(),
                                 link_data,
                                 if link_type == LinkType::Inline {
                                     (b'(', b')')
@@ -139,7 +141,7 @@ fn check_redundant_explicit_link<'md>(
                                 doc,
                                 resolutions,
                                 link_range,
-                                &dest,
+                                &dest_url,
                                 link_data,
                             );
                         }
@@ -259,7 +261,9 @@ fn find_resolution(resolutions: &DocLinkResMap, path: &str) -> Option<Res<NodeId
 }
 
 /// Collects all necessary data of link.
-fn collect_link_data(offset_iter: &mut OffsetIter<'_, '_>) -> LinkData {
+fn collect_link_data<'input, F: BrokenLinkCallback<'input>>(
+    offset_iter: &mut OffsetIter<'input, F>,
+) -> LinkData {
     let mut resolvable_link = None;
     let mut resolvable_link_range = None;
     let mut display_link = String::new();
diff --git a/src/tools/tidy/src/deps.rs b/src/tools/tidy/src/deps.rs
index aa119819aaa..82fa43f581f 100644
--- a/src/tools/tidy/src/deps.rs
+++ b/src/tools/tidy/src/deps.rs
@@ -335,6 +335,7 @@ const PERMITTED_RUSTC_DEPENDENCIES: &[&str] = &[
     "proc-macro2",
     "psm",
     "pulldown-cmark",
+    "pulldown-cmark-escape",
     "punycode",
     "quote",
     "r-efi",