Auto merge of #127127 - notriddle:notriddle/pulldown-cmark-0.11, r=GuillaumeGomez

rustdoc: update to pulldown-cmark 0.11

r? rustdoc

This pull request updates rustdoc to the latest version of pulldown-cmark. Along with adding new markdown extensions (which this PR doesn't enable), the new pulldown-cmark version also fixes a large number of bugs. Because all text files successfully parse as markdown, these bugfixes change the output, which can break people's existing docs.

A crater run, https://github.com/rust-lang/rust/pull/121659, has already been run for this change.

The first commit upgrades and fixes rustdoc. The second commit adds a lint for the footnote and block quote parser changes, which break the largest numbers of docs in the Crater run. The strikethrough change was mitigated in pulldown-cmark itself.

Unblocks https://github.com/rust-lang/rust-clippy/pull/12876

1 files changed, 9 insertions, 5 deletions

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<'_>| {