Adding debian version 1.65.0+dfsg1-2.debian/1.65.0+dfsg1-2

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

6 files changed, 413 insertions, 244 deletions

diff --git a/src/librustdoc/html/render/context.rs b/src/librustdoc/html/render/context.rs
index 2ed7a6f1b..62def4a94 100644
--- a/src/librustdoc/html/render/context.rs
+++ b/src/librustdoc/html/render/context.rs
@@ -31,6 +31,7 @@ use crate::formats::FormatRenderer;
 use crate::html::escape::Escape;
 use crate::html::format::{join_with_double_colon, Buffer};
 use crate::html::markdown::{self, plain_text_summary, ErrorCodes, IdMap};
+use crate::html::url_parts_builder::UrlPartsBuilder;
 use crate::html::{layout, sources};
 use crate::scrape_examples::AllCallLocations;
 use crate::try_err;
@@ -71,7 +72,7 @@ pub(crate) struct Context<'tcx> {
 }
 
 // `Context` is cloned a lot, so we don't want the size to grow unexpectedly.
-#[cfg(all(target_arch = "x86_64", target_pointer_width = "64"))]
+#[cfg(all(not(windows), target_arch = "x86_64", target_pointer_width = "64"))]
 rustc_data_structures::static_assert_size!(Context<'_>, 128);
 
 /// Shared mutable state used in [`Context`] and elsewhere.
@@ -301,13 +302,10 @@ impl<'tcx> Context<'tcx> {
     /// may happen, for example, with externally inlined items where the source
     /// of their crate documentation isn't known.
     pub(super) fn src_href(&self, item: &clean::Item) -> Option<String> {
-        self.href_from_span(item.span(self.tcx()), true)
+        self.href_from_span(item.span(self.tcx())?, true)
     }
 
     pub(crate) fn href_from_span(&self, span: clean::Span, with_lines: bool) -> Option<String> {
-        if span.is_dummy() {
-            return None;
-        }
         let mut root = self.root_path();
         let mut path = String::new();
         let cnum = span.cnum(self.sess());
@@ -373,6 +371,35 @@ impl<'tcx> Context<'tcx> {
             anchor = anchor
         ))
     }
+
+    pub(crate) fn href_from_span_relative(
+        &self,
+        span: clean::Span,
+        relative_to: &str,
+    ) -> Option<String> {
+        self.href_from_span(span, false).map(|s| {
+            let mut url = UrlPartsBuilder::new();
+            let mut dest_href_parts = s.split('/');
+            let mut cur_href_parts = relative_to.split('/');
+            for (cur_href_part, dest_href_part) in (&mut cur_href_parts).zip(&mut dest_href_parts) {
+                if cur_href_part != dest_href_part {
+                    url.push(dest_href_part);
+                    break;
+                }
+            }
+            for dest_href_part in dest_href_parts {
+                url.push(dest_href_part);
+            }
+            let loline = span.lo(self.sess()).line;
+            let hiline = span.hi(self.sess()).line;
+            format!(
+                "{}{}#{}",
+                "../".repeat(cur_href_parts.count()),
+                url.finish(),
+                if loline == hiline { loline.to_string() } else { format!("{loline}-{hiline}") }
+            )
+        })
+    }
 }
 
 /// Generates the documentation for `crate` into the directory `dst`
diff --git a/src/librustdoc/html/render/mod.rs b/src/librustdoc/html/render/mod.rs
index a262c8f7d..1e6f20d2b 100644
--- a/src/librustdoc/html/render/mod.rs
+++ b/src/librustdoc/html/render/mod.rs
@@ -191,12 +191,6 @@ impl StylePath {
     }
 }
 
-fn write_srclink(cx: &Context<'_>, item: &clean::Item, buf: &mut Buffer) {
-    if let Some(l) = cx.src_href(item) {
-        write!(buf, "<a class=\"srclink\" href=\"{}\">source</a>", l)
-    }
-}
-
 #[derive(Debug, Eq, PartialEq, Hash)]
 struct ItemEntry {
     url: String,
@@ -522,7 +516,14 @@ fn portability(item: &clean::Item, parent: Option<&clean::Item>) -> Option<Strin
         (cfg, _) => cfg.as_deref().cloned(),
     };
 
-    debug!("Portability {:?} - {:?} = {:?}", item.cfg, parent.and_then(|p| p.cfg.as_ref()), cfg);
+    debug!(
+        "Portability {:?} {:?} (parent: {:?}) - {:?} = {:?}",
+        item.name,
+        item.cfg,
+        parent,
+        parent.and_then(|p| p.cfg.as_ref()),
+        cfg
+    );
 
     Some(format!("<div class=\"stab portability\">{}</div>", cfg?.render_long_html()))
 }
@@ -569,7 +570,10 @@ fn short_item_info(
             message.push_str(&format!(": {}", html.into_string()));
         }
         extra_info.push(format!(
-            "<div class=\"stab deprecated\"><span class=\"emoji\">👎</span> {}</div>",
+            "<div class=\"stab deprecated\">\
+                 <span class=\"emoji\">👎</span>\
+                 <span>{}</span>\
+             </div>",
             message,
         ));
     }
@@ -582,8 +586,9 @@ fn short_item_info(
         .filter(|stab| stab.feature != sym::rustc_private)
         .map(|stab| (stab.level, stab.feature))
     {
-        let mut message =
-            "<span class=\"emoji\">🔬</span> This is a nightly-only experimental API.".to_owned();
+        let mut message = "<span class=\"emoji\">🔬</span>\
+             <span>This is a nightly-only experimental API."
+            .to_owned();
 
         let mut feature = format!("<code>{}</code>", Escape(feature.as_str()));
         if let (Some(url), Some(issue)) = (&cx.shared.issue_tracker_base_url, issue) {
@@ -594,7 +599,7 @@ fn short_item_info(
             ));
         }
 
-        message.push_str(&format!(" ({})", feature));
+        message.push_str(&format!(" ({})</span>", feature));
 
         extra_info.push(format!("<div class=\"stab unstable\">{}</div>", message));
     }
@@ -608,10 +613,10 @@ fn short_item_info(
 
 // Render the list of items inside one of the sections "Trait Implementations",
 // "Auto Trait Implementations," "Blanket Trait Implementations" (on struct/enum pages).
-fn render_impls(
+pub(crate) fn render_impls(
     cx: &mut Context<'_>,
     w: &mut Buffer,
-    impls: &[&&Impl],
+    impls: &[&Impl],
     containing_item: &clean::Item,
     toggle_open_by_default: bool,
 ) {
@@ -816,7 +821,7 @@ fn assoc_method(
         href = href,
         name = name,
         generics = g.print(cx),
-        decl = d.full_print(header_len, indent, header.asyncness, cx),
+        decl = d.full_print(header_len, indent, cx),
         notable_traits = notable_traits_decl(d, cx),
         where_clause = print_where_clause(g, cx, indent, end_newline),
     )
@@ -836,12 +841,13 @@ fn assoc_method(
 /// Note that it is possible for an unstable function to be const-stable. In that case, the span
 /// will include the const-stable version, but no stable version will be emitted, as a natural
 /// consequence of the above rules.
-fn render_stability_since_raw(
+fn render_stability_since_raw_with_extra(
     w: &mut Buffer,
     ver: Option<Symbol>,
     const_stability: Option<ConstStability>,
     containing_ver: Option<Symbol>,
     containing_const_ver: Option<Symbol>,
+    extra_class: &str,
 ) -> bool {
     let stable_version = ver.filter(|inner| !inner.is_empty() && Some(*inner) != containing_ver);
 
@@ -889,12 +895,30 @@ fn render_stability_since_raw(
     }
 
     if !stability.is_empty() {
-        write!(w, r#"<span class="since" title="{}">{}</span>"#, title, stability);
+        write!(w, r#"<span class="since{extra_class}" title="{title}">{stability}</span>"#);
     }
 
     !stability.is_empty()
 }
 
+#[inline]
+fn render_stability_since_raw(
+    w: &mut Buffer,
+    ver: Option<Symbol>,
+    const_stability: Option<ConstStability>,
+    containing_ver: Option<Symbol>,
+    containing_const_ver: Option<Symbol>,
+) -> bool {
+    render_stability_since_raw_with_extra(
+        w,
+        ver,
+        const_stability,
+        containing_ver,
+        containing_const_ver,
+        "",
+    )
+}
+
 fn render_assoc_item(
     w: &mut Buffer,
     item: &clean::Item,
@@ -1001,6 +1025,47 @@ impl<'a> AssocItemLink<'a> {
     }
 }
 
+fn write_impl_section_heading(w: &mut Buffer, title: &str, id: &str) {
+    write!(
+        w,
+        "<h2 id=\"{id}\" class=\"small-section-header\">\
+            {title}\
+            <a href=\"#{id}\" class=\"anchor\"></a>\
+         </h2>"
+    );
+}
+
+pub(crate) fn render_all_impls(
+    w: &mut Buffer,
+    cx: &mut Context<'_>,
+    containing_item: &clean::Item,
+    concrete: &[&Impl],
+    synthetic: &[&Impl],
+    blanket_impl: &[&Impl],
+) {
+    let mut impls = Buffer::empty_from(w);
+    render_impls(cx, &mut impls, concrete, containing_item, true);
+    let impls = impls.into_inner();
+    if !impls.is_empty() {
+        write_impl_section_heading(w, "Trait Implementations", "trait-implementations");
+        write!(w, "<div id=\"trait-implementations-list\">{}</div>", impls);
+    }
+
+    if !synthetic.is_empty() {
+        write_impl_section_heading(w, "Auto Trait Implementations", "synthetic-implementations");
+        w.write_str("<div id=\"synthetic-implementations-list\">");
+        render_impls(cx, w, synthetic, containing_item, false);
+        w.write_str("</div>");
+    }
+
+    if !blanket_impl.is_empty() {
+        write_impl_section_heading(w, "Blanket Implementations", "blanket-implementations");
+        w.write_str("<div id=\"blanket-implementations-list\">");
+        render_impls(cx, w, blanket_impl, containing_item, false);
+        w.write_str("</div>");
+    }
+}
+
 fn render_assoc_items(
     w: &mut Buffer,
     cx: &mut Context<'_>,
@@ -1030,12 +1095,7 @@ fn render_assoc_items_inner(
         let mut tmp_buf = Buffer::empty_from(w);
         let (render_mode, id) = match what {
             AssocItemRender::All => {
-                tmp_buf.write_str(
-                    "<h2 id=\"implementations\" class=\"small-section-header\">\
-                         Implementations\
-                         <a href=\"#implementations\" class=\"anchor\"></a>\
-                     </h2>",
-                );
+                write_impl_section_heading(&mut tmp_buf, "Implementations", "implementations");
                 (RenderMode::Normal, "implementations-list".to_owned())
             }
             AssocItemRender::DerefFor { trait_, type_, deref_mut_ } => {
@@ -1044,15 +1104,14 @@ fn render_assoc_items_inner(
                 if let Some(def_id) = type_.def_id(cx.cache()) {
                     cx.deref_id_map.insert(def_id, id.clone());
                 }
-                write!(
-                    tmp_buf,
-                    "<h2 id=\"{id}\" class=\"small-section-header\">\
-                         <span>Methods from {trait_}&lt;Target = {type_}&gt;</span>\
-                         <a href=\"#{id}\" class=\"anchor\"></a>\
-                     </h2>",
-                    id = id,
-                    trait_ = trait_.print(cx),
-                    type_ = type_.print(cx),
+                write_impl_section_heading(
+                    &mut tmp_buf,
+                    &format!(
+                        "<span>Methods from {trait_}&lt;Target = {type_}&gt;</span>",
+                        trait_ = trait_.print(cx),
+                        type_ = type_.print(cx),
+                    ),
+                    &id,
                 );
                 (RenderMode::ForDeref { mut_: deref_mut_ }, cx.derive_id(id))
             }
@@ -1099,49 +1158,12 @@ fn render_assoc_items_inner(
             return;
         }
 
-        let (synthetic, concrete): (Vec<&&Impl>, Vec<&&Impl>) =
-            traits.iter().partition(|t| t.inner_impl().kind.is_auto());
-        let (blanket_impl, concrete): (Vec<&&Impl>, _) =
+        let (synthetic, concrete): (Vec<&Impl>, Vec<&Impl>) =
+            traits.into_iter().partition(|t| t.inner_impl().kind.is_auto());
+        let (blanket_impl, concrete): (Vec<&Impl>, _) =
             concrete.into_iter().partition(|t| t.inner_impl().kind.is_blanket());
 
-        let mut impls = Buffer::empty_from(w);
-        render_impls(cx, &mut impls, &concrete, containing_item, true);
-        let impls = impls.into_inner();
-        if !impls.is_empty() {
-            write!(
-                w,
-                "<h2 id=\"trait-implementations\" class=\"small-section-header\">\
-                     Trait Implementations\
-                     <a href=\"#trait-implementations\" class=\"anchor\"></a>\
-                 </h2>\
-                 <div id=\"trait-implementations-list\">{}</div>",
-                impls
-            );
-        }
-
-        if !synthetic.is_empty() {
-            w.write_str(
-                "<h2 id=\"synthetic-implementations\" class=\"small-section-header\">\
-                     Auto Trait Implementations\
-                     <a href=\"#synthetic-implementations\" class=\"anchor\"></a>\
-                 </h2>\
-                 <div id=\"synthetic-implementations-list\">",
-            );
-            render_impls(cx, w, &synthetic, containing_item, false);
-            w.write_str("</div>");
-        }
-
-        if !blanket_impl.is_empty() {
-            w.write_str(
-                "<h2 id=\"blanket-implementations\" class=\"small-section-header\">\
-                     Blanket Implementations\
-                     <a href=\"#blanket-implementations\" class=\"anchor\"></a>\
-                 </h2>\
-                 <div id=\"blanket-implementations-list\">",
-            );
-            render_impls(cx, w, &blanket_impl, containing_item, false);
-            w.write_str("</div>");
-        }
+        render_all_impls(w, cx, containing_item, &concrete, &synthetic, &blanket_impl);
     }
 }
 
@@ -1550,6 +1572,15 @@ fn render_impl(
         rendering_params: ImplRenderingParameters,
     ) {
         for trait_item in &t.items {
+            // Skip over any default trait items that are impossible to call
+            // (e.g. if it has a `Self: Sized` bound on an unsized type).
+            if let Some(impl_def_id) = parent.item_id.as_def_id()
+                && let Some(trait_item_def_id) = trait_item.item_id.as_def_id()
+                && cx.tcx().is_impossible_method((impl_def_id, trait_item_def_id))
+            {
+                continue;
+            }
+
             let n = trait_item.name;
             if i.items.iter().any(|m| m.name == n) {
                 continue;
@@ -1668,23 +1699,29 @@ fn render_rightside(
         RenderMode::Normal => (item.const_stability(tcx), containing_item.const_stable_since(tcx)),
         RenderMode::ForDeref { .. } => (None, None),
     };
+    let src_href = cx.src_href(item);
+    let has_src_ref = src_href.is_some();
 
     let mut rightside = Buffer::new();
-    let has_stability = render_stability_since_raw(
+    let has_stability = render_stability_since_raw_with_extra(
         &mut rightside,
         item.stable_since(tcx),
         const_stability,
         containing_item.stable_since(tcx),
         const_stable_since,
+        if has_src_ref { "" } else { " rightside" },
     );
-    let mut srclink = Buffer::empty_from(w);
-    write_srclink(cx, item, &mut srclink);
-    if has_stability && !srclink.is_empty() {
-        rightside.write_str(" · ");
+    if let Some(l) = src_href {
+        if has_stability {
+            write!(rightside, " · <a class=\"srclink\" href=\"{}\">source</a>", l)
+        } else {
+            write!(rightside, "<a class=\"srclink rightside\" href=\"{}\">source</a>", l)
+        }
     }
-    rightside.push_buffer(srclink);
-    if !rightside.is_empty() {
+    if has_stability && has_src_ref {
         write!(w, "<span class=\"rightside\">{}</span>", rightside.into_inner());
+    } else {
+        w.push_buffer(rightside);
     }
 }
 
@@ -1700,8 +1737,8 @@ pub(crate) fn render_impl_summary(
     // in documentation pages for trait with automatic implementations like "Send" and "Sync".
     aliases: &[String],
 ) {
-    let id =
-        cx.derive_id(get_id_for_impl(&i.inner_impl().for_, i.inner_impl().trait_.as_ref(), cx));
+    let inner_impl = i.inner_impl();
+    let id = cx.derive_id(get_id_for_impl(&inner_impl.for_, inner_impl.trait_.as_ref(), cx));
     let aliases = if aliases.is_empty() {
         String::new()
     } else {
@@ -1713,9 +1750,9 @@ pub(crate) fn render_impl_summary(
     write!(w, "<h3 class=\"code-header in-band\">");
 
     if let Some(use_absolute) = use_absolute {
-        write!(w, "{}", i.inner_impl().print(use_absolute, cx));
+        write!(w, "{}", inner_impl.print(use_absolute, cx));
         if show_def_docs {
-            for it in &i.inner_impl().items {
+            for it in &inner_impl.items {
                 if let clean::AssocTypeItem(ref tydef, ref _bounds) = *it.kind {
                     w.write_str("<span class=\"where fmt-newline\">  ");
                     assoc_type(
@@ -1733,11 +1770,11 @@ pub(crate) fn render_impl_summary(
             }
         }
     } else {
-        write!(w, "{}", i.inner_impl().print(false, cx));
+        write!(w, "{}", inner_impl.print(false, cx));
     }
     write!(w, "</h3>");
 
-    let is_trait = i.inner_impl().trait_.is_some();
+    let is_trait = inner_impl.trait_.is_some();
     if is_trait {
         if let Some(portability) = portability(&i.impl_item, Some(parent)) {
             write!(w, "<span class=\"item-info\">{}</span>", portability);
@@ -1931,6 +1968,70 @@ fn small_url_encode(s: String) -> String {
     }
 }
 
+pub(crate) fn sidebar_render_assoc_items(
+    cx: &Context<'_>,
+    out: &mut Buffer,
+    id_map: &mut IdMap,
+    concrete: Vec<&Impl>,
+    synthetic: Vec<&Impl>,
+    blanket_impl: Vec<&Impl>,
+) {
+    let format_impls = |impls: Vec<&Impl>, id_map: &mut IdMap| {
+        let mut links = FxHashSet::default();
+
+        let mut ret = impls
+            .iter()
+            .filter_map(|it| {
+                let trait_ = it.inner_impl().trait_.as_ref()?;
+                let encoded =
+                    id_map.derive(get_id_for_impl(&it.inner_impl().for_, Some(trait_), cx));
+
+                let i_display = format!("{:#}", trait_.print(cx));
+                let out = Escape(&i_display);
+                let prefix = match it.inner_impl().polarity {
+                    ty::ImplPolarity::Positive | ty::ImplPolarity::Reservation => "",
+                    ty::ImplPolarity::Negative => "!",
+                };
+                let generated = format!("<a href=\"#{}\">{}{}</a>", encoded, prefix, out);
+                if links.insert(generated.clone()) { Some(generated) } else { None }
+            })
+            .collect::<Vec<String>>();
+        ret.sort();
+        ret
+    };
+
+    let concrete_format = format_impls(concrete, id_map);
+    let synthetic_format = format_impls(synthetic, id_map);
+    let blanket_format = format_impls(blanket_impl, id_map);
+
+    if !concrete_format.is_empty() {
+        print_sidebar_block(
+            out,
+            "trait-implementations",
+            "Trait Implementations",
+            concrete_format.iter(),
+        );
+    }
+
+    if !synthetic_format.is_empty() {
+        print_sidebar_block(
+            out,
+            "synthetic-implementations",
+            "Auto Trait Implementations",
+            synthetic_format.iter(),
+        );
+    }
+
+    if !blanket_format.is_empty() {
+        print_sidebar_block(
+            out,
+            "blanket-implementations",
+            "Blanket Implementations",
+            blanket_format.iter(),
+        );
+    }
+}
+
 fn sidebar_assoc_items(cx: &Context<'_>, out: &mut Buffer, it: &clean::Item) {
     let did = it.item_id.expect_def_id();
     let cache = cx.cache();
@@ -1976,68 +2077,15 @@ fn sidebar_assoc_items(cx: &Context<'_>, out: &mut Buffer, it: &clean::Item) {
             {
                 let mut derefs = FxHashSet::default();
                 derefs.insert(did);
-                sidebar_deref_methods(cx, out, impl_, v, &mut derefs);
+                sidebar_deref_methods(cx, out, impl_, v, &mut derefs, &mut used_links);
             }
 
-            let format_impls = |impls: Vec<&Impl>, id_map: &mut IdMap| {
-                let mut links = FxHashSet::default();
-
-                let mut ret = impls
-                    .iter()
-                    .filter_map(|it| {
-                        let trait_ = it.inner_impl().trait_.as_ref()?;
-                        let encoded =
-                            id_map.derive(get_id_for_impl(&it.inner_impl().for_, Some(trait_), cx));
-
-                        let i_display = format!("{:#}", trait_.print(cx));
-                        let out = Escape(&i_display);
-                        let prefix = match it.inner_impl().polarity {
-                            ty::ImplPolarity::Positive | ty::ImplPolarity::Reservation => "",
-                            ty::ImplPolarity::Negative => "!",
-                        };
-                        let generated = format!("<a href=\"#{}\">{}{}</a>", encoded, prefix, out);
-                        if links.insert(generated.clone()) { Some(generated) } else { None }
-                    })
-                    .collect::<Vec<String>>();
-                ret.sort();
-                ret
-            };
-
             let (synthetic, concrete): (Vec<&Impl>, Vec<&Impl>) =
                 v.iter().partition::<Vec<_>, _>(|i| i.inner_impl().kind.is_auto());
             let (blanket_impl, concrete): (Vec<&Impl>, Vec<&Impl>) =
                 concrete.into_iter().partition::<Vec<_>, _>(|i| i.inner_impl().kind.is_blanket());
 
-            let concrete_format = format_impls(concrete, &mut id_map);
-            let synthetic_format = format_impls(synthetic, &mut id_map);
-            let blanket_format = format_impls(blanket_impl, &mut id_map);
-
-            if !concrete_format.is_empty() {
-                print_sidebar_block(
-                    out,
-                    "trait-implementations",
-                    "Trait Implementations",
-                    concrete_format.iter(),
-                );
-            }
-
-            if !synthetic_format.is_empty() {
-                print_sidebar_block(
-                    out,
-                    "synthetic-implementations",
-                    "Auto Trait Implementations",
-                    synthetic_format.iter(),
-                );
-            }
-
-            if !blanket_format.is_empty() {
-                print_sidebar_block(
-                    out,
-                    "blanket-implementations",
-                    "Blanket Implementations",
-                    blanket_format.iter(),
-                );
-            }
+            sidebar_render_assoc_items(cx, out, &mut id_map, concrete, synthetic, blanket_impl);
         }
     }
 }
@@ -2048,6 +2096,7 @@ fn sidebar_deref_methods(
     impl_: &Impl,
     v: &[Impl],
     derefs: &mut FxHashSet<DefId>,
+    used_links: &mut FxHashSet<String>,
 ) {
     let c = cx.cache();
 
@@ -2080,13 +2129,10 @@ fn sidebar_deref_methods(
             .and_then(|did| c.impls.get(&did));
         if let Some(impls) = inner_impl {
             debug!("found inner_impl: {:?}", impls);
-            let mut used_links = FxHashSet::default();
             let mut ret = impls
                 .iter()
                 .filter(|i| i.inner_impl().trait_.is_none())
-                .flat_map(|i| {
-                    get_methods(i.inner_impl(), true, &mut used_links, deref_mut, cx.tcx())
-                })
+                .flat_map(|i| get_methods(i.inner_impl(), true, used_links, deref_mut, cx.tcx()))
                 .collect::<Vec<_>>();
             if !ret.is_empty() {
                 let id = if let Some(target_def_id) = real_target.def_id(c) {
@@ -2115,7 +2161,14 @@ fn sidebar_deref_methods(
                         .map(|t| Some(t.def_id()) == cx.tcx().lang_items().deref_trait())
                         .unwrap_or(false)
                 }) {
-                    sidebar_deref_methods(cx, out, target_deref_impl, target_impls, derefs);
+                    sidebar_deref_methods(
+                        cx,
+                        out,
+                        target_deref_impl,
+                        target_impls,
+                        derefs,
+                        used_links,
+                    );
                 }
             }
         }
@@ -2302,9 +2355,54 @@ fn sidebar_trait(cx: &Context<'_>, buf: &mut Buffer, it: &clean::Item, t: &clean
     buf.push_str("</section>")
 }
 
+/// Returns the list of implementations for the primitive reference type, filtering out any
+/// implementations that are on concrete or partially generic types, only keeping implementations
+/// of the form `impl<T> Trait for &T`.
+pub(crate) fn get_filtered_impls_for_reference<'a>(
+    shared: &'a Rc<SharedContext<'_>>,
+    it: &clean::Item,
+) -> (Vec<&'a Impl>, Vec<&'a Impl>, Vec<&'a Impl>) {
+    let def_id = it.item_id.expect_def_id();
+    // If the reference primitive is somehow not defined, exit early.
+    let Some(v) = shared.cache.impls.get(&def_id) else { return (Vec::new(), Vec::new(), Vec::new()) };
+    // Since there is no "direct implementation" on the reference primitive type, we filter out
+    // every implementation which isn't a trait implementation.
+    let traits = v.iter().filter(|i| i.inner_impl().trait_.is_some());
+    let (synthetic, concrete): (Vec<&Impl>, Vec<&Impl>) =
+        traits.partition(|t| t.inner_impl().kind.is_auto());
+
+    let (blanket_impl, concrete): (Vec<&Impl>, _) =
+        concrete.into_iter().partition(|t| t.inner_impl().kind.is_blanket());
+    // Now we keep only references over full generic types.
+    let concrete: Vec<_> = concrete
+        .into_iter()
+        .filter(|t| match t.inner_impl().for_ {
+            clean::Type::BorrowedRef { ref type_, .. } => type_.is_full_generic(),
+            _ => false,
+        })
+        .collect();
+
+    (concrete, synthetic, blanket_impl)
+}
+
 fn sidebar_primitive(cx: &Context<'_>, buf: &mut Buffer, it: &clean::Item) {
     let mut sidebar = Buffer::new();
-    sidebar_assoc_items(cx, &mut sidebar, it);
+
+    if it.name.map(|n| n.as_str() != "reference").unwrap_or(false) {
+        sidebar_assoc_items(cx, &mut sidebar, it);
+    } else {
+        let shared = Rc::clone(&cx.shared);
+        let (concrete, synthetic, blanket_impl) = get_filtered_impls_for_reference(&shared, it);
+
+        sidebar_render_assoc_items(
+            cx,
+            &mut sidebar,
+            &mut IdMap::new(),
+            concrete,
+            synthetic,
+            blanket_impl,
+        );
+    }
 
     if !sidebar.is_empty() {
         write!(buf, "<section>{}</section>", sidebar.into_inner());
@@ -2614,8 +2712,8 @@ fn collect_paths_for_type(first_ty: clean::Type, cache: &Cache) -> Vec<String> {
             clean::Type::BorrowedRef { type_, .. } => {
                 work.push_back(*type_);
             }
-            clean::Type::QPath { self_type, trait_, .. } => {
-                work.push_back(*self_type);
+            clean::Type::QPath(box clean::QPathData { self_type, trait_, .. }) => {
+                work.push_back(self_type);
                 process_path(trait_.def_id());
             }
             _ => {}
@@ -2668,7 +2766,7 @@ fn render_call_locations(w: &mut Buffer, cx: &mut Context<'_>, item: &clean::Ite
         let contents = match fs::read_to_string(&path) {
             Ok(contents) => contents,
             Err(err) => {
-                let span = item.span(tcx).inner();
+                let span = item.span(tcx).map_or(rustc_span::DUMMY_SP, |span| span.inner());
                 tcx.sess
                     .span_err(span, &format!("failed to read file {}: {}", path.display(), err));
                 return false;
@@ -2764,11 +2862,10 @@ fn render_call_locations(w: &mut Buffer, cx: &mut Context<'_>, item: &clean::Ite
         sources::print_src(
             w,
             contents_subset,
-            call_data.edition,
             file_span,
             cx,
             &root_path,
-            Some(highlight::DecorationInfo(decoration_info)),
+            highlight::DecorationInfo(decoration_info),
             sources::SourceContext::Embedded { offset: line_min },
         );
         write!(w, "</div></div>");
diff --git a/src/librustdoc/html/render/print_item.rs b/src/librustdoc/html/render/print_item.rs
index 99cf42919..cfa450942 100644
--- a/src/librustdoc/html/render/print_item.rs
+++ b/src/librustdoc/html/render/print_item.rs
@@ -16,10 +16,10 @@ use std::fmt;
 use std::rc::Rc;
 
 use super::{
-    collect_paths_for_type, document, ensure_trailing_slash, item_ty_to_section,
-    notable_traits_decl, render_assoc_item, render_assoc_items, render_attributes_in_code,
-    render_attributes_in_pre, render_impl, render_stability_since_raw, write_srclink,
-    AssocItemLink, Context, ImplRenderingParameters,
+    collect_paths_for_type, document, ensure_trailing_slash, get_filtered_impls_for_reference,
+    item_ty_to_section, notable_traits_decl, render_all_impls, render_assoc_item,
+    render_assoc_items, render_attributes_in_code, render_attributes_in_pre, render_impl,
+    render_rightside, render_stability_since_raw, AssocItemLink, Context, ImplRenderingParameters,
 };
 use crate::clean;
 use crate::config::ModuleSorting;
@@ -371,16 +371,21 @@ fn item_module(w: &mut Buffer, cx: &mut Context<'_>, item: &clean::Item, items:
                     }
                     clean::ImportKind::Glob => String::new(),
                 };
+                let stab_tags = stab_tags.unwrap_or_default();
+                let (stab_tags_before, stab_tags_after) = if stab_tags.is_empty() {
+                    ("", "")
+                } else {
+                    ("<div class=\"item-right docblock-short\">", "</div>")
+                };
                 write!(
                     w,
                     "<div class=\"item-left {stab}{add}import-item\"{id}>\
                          <code>{vis}{imp}</code>\
                      </div>\
-                     <div class=\"item-right docblock-short\">{stab_tags}</div>",
+                     {stab_tags_before}{stab_tags}{stab_tags_after}",
                     stab = stab.unwrap_or_default(),
                     vis = myitem.visibility.print_with_space(myitem.item_id, cx),
                     imp = import.print(cx),
-                    stab_tags = stab_tags.unwrap_or_default(),
                 );
                 w.write_str(ITEM_TABLE_ROW_CLOSE);
             }
@@ -412,6 +417,12 @@ fn item_module(w: &mut Buffer, cx: &mut Context<'_>, item: &clean::Item, items:
 
                 let doc_value = myitem.doc_value().unwrap_or_default();
                 w.write_str(ITEM_TABLE_ROW_OPEN);
+                let docs = MarkdownSummaryLine(&doc_value, &myitem.links(cx)).into_string();
+                let (docs_before, docs_after) = if docs.is_empty() {
+                    ("", "")
+                } else {
+                    ("<div class=\"item-right docblock-short\">", "</div>")
+                };
                 write!(
                     w,
                     "<div class=\"item-left {stab}{add}module-item\">\
@@ -420,11 +431,10 @@ fn item_module(w: &mut Buffer, cx: &mut Context<'_>, item: &clean::Item, items:
                         {unsafety_flag}\
                         {stab_tags}\
                      </div>\
-                     <div class=\"item-right docblock-short\">{docs}</div>",
+                     {docs_before}{docs}{docs_after}",
                     name = myitem.name.unwrap(),
                     visibility_emoji = visibility_emoji,
                     stab_tags = extra_info_tags(myitem, item, cx.tcx()),
-                    docs = MarkdownSummaryLine(&doc_value, &myitem.links(cx)).into_string(),
                     class = myitem.type_(),
                     add = add,
                     stab = stab.unwrap_or_default(),
@@ -477,7 +487,7 @@ fn extra_info_tags(item: &clean::Item, parent: &clean::Item, tcx: TyCtxt<'_>) ->
         (cfg, _) => cfg.as_deref().cloned(),
     };
 
-    debug!("Portability {:?} - {:?} = {:?}", item.cfg, parent.cfg, cfg);
+    debug!("Portability name={:?} {:?} - {:?} = {:?}", item.name, item.cfg, parent.cfg, cfg);
     if let Some(ref cfg) = cfg {
         tags += &tag_html("portability", &cfg.render_long_plain(), &cfg.render_short_html());
     }
@@ -520,7 +530,7 @@ fn item_function(w: &mut Buffer, cx: &mut Context<'_>, it: &clean::Item, f: &cle
                 name = name,
                 generics = f.generics.print(cx),
                 where_clause = print_where_clause(&f.generics, cx, 0, Ending::Newline),
-                decl = f.decl.full_print(header_len, 0, header.asyncness, cx),
+                decl = f.decl.full_print(header_len, 0, cx),
                 notable_traits = notable_traits_decl(&f.decl, cx),
             );
         });
@@ -709,14 +719,7 @@ fn item_trait(w: &mut Buffer, cx: &mut Context<'_>, it: &clean::Item, t: &clean:
             write!(w, "<details class=\"rustdoc-toggle\" open><summary>");
         }
         write!(w, "<div id=\"{}\" class=\"method has-srclink\">", id);
-        write!(w, "<div class=\"rightside\">");
-
-        let has_stability = render_stability_since(w, m, t, cx.tcx());
-        if has_stability {
-            w.write_str(" · ");
-        }
-        write_srclink(cx, m, w);
-        write!(w, "</div>");
+        render_rightside(w, cx, m, t, RenderMode::Normal);
         write!(w, "<h4 class=\"code-header\">");
         render_assoc_item(
             w,
@@ -994,7 +997,7 @@ fn item_trait(w: &mut Buffer, cx: &mut Context<'_>, it: &clean::Item, t: &clean:
     // So C's HTML will have something like this:
     //
     // ```html
-    // <script type="text/javascript" src="/implementors/A/trait.Foo.js"
+    // <script src="/implementors/A/trait.Foo.js"
     //     data-ignore-extern-crates="A,B" async></script>
     // ```
     //
@@ -1020,9 +1023,11 @@ fn item_trait(w: &mut Buffer, cx: &mut Context<'_>, it: &clean::Item, t: &clean:
         .map(|cnum| cx.shared.tcx.crate_name(cnum).to_string())
         .collect::<Vec<_>>()
         .join(",");
+    let (extern_before, extern_after) =
+        if extern_crates.is_empty() { ("", "") } else { (" data-ignore-extern-crates=\"", "\"") };
     write!(
         w,
-        "<script type=\"text/javascript\" src=\"{src}\" data-ignore-extern-crates=\"{extern_crates}\" async></script>",
+        "<script src=\"{src}\"{extern_before}{extern_crates}{extern_after} async></script>",
         src = js_src_path.finish(),
     );
 }
@@ -1198,7 +1203,8 @@ fn item_enum(w: &mut Buffer, cx: &mut Context<'_>, it: &clean::Item, e: &clean::
                     let name = v.name.unwrap();
                     match *v.kind {
                         clean::VariantItem(ref var) => match var {
-                            clean::Variant::CLike => write!(w, "{}", name),
+                            // FIXME(#101337): Show discriminant
+                            clean::Variant::CLike(..) => write!(w, "{}", name),
                             clean::Variant::Tuple(ref s) => {
                                 write!(w, "{}(", name);
                                 print_tuple_struct_fields(w, cx, s);
@@ -1260,7 +1266,13 @@ fn item_enum(w: &mut Buffer, cx: &mut Context<'_>, it: &clean::Item, e: &clean::
                 w.write_str(")");
             }
             w.write_str("</code>");
-            render_stability_since(w, variant, it, cx.tcx());
+            render_stability_since_raw(
+                w,
+                variant.stable_since(cx.tcx()),
+                variant.const_stability(cx.tcx()),
+                it.stable_since(cx.tcx()),
+                it.const_stable_since(cx.tcx()),
+            );
             w.write_str("</h3>");
 
             use crate::clean::Variant;
@@ -1322,17 +1334,7 @@ fn item_enum(w: &mut Buffer, cx: &mut Context<'_>, it: &clean::Item, e: &clean::
 
 fn item_macro(w: &mut Buffer, cx: &mut Context<'_>, it: &clean::Item, t: &clean::Macro) {
     wrap_into_docblock(w, |w| {
-        highlight::render_with_highlighting(
-            &t.source,
-            w,
-            Some("macro"),
-            None,
-            None,
-            it.span(cx.tcx()).inner().edition(),
-            None,
-            None,
-            None,
-        );
+        highlight::render_macro_with_highlighting(&t.source, w);
     });
     document(w, cx, it, None, HeadingOffset::H2)
 }
@@ -1370,8 +1372,18 @@ fn item_proc_macro(w: &mut Buffer, cx: &mut Context<'_>, it: &clean::Item, m: &c
 }
 
 fn item_primitive(w: &mut Buffer, cx: &mut Context<'_>, it: &clean::Item) {
+    let def_id = it.item_id.expect_def_id();
     document(w, cx, it, None, HeadingOffset::H2);
-    render_assoc_items(w, cx, it, it.item_id.expect_def_id(), AssocItemRender::All)
+    if it.name.map(|n| n.as_str() != "reference").unwrap_or(false) {
+        render_assoc_items(w, cx, it, def_id, AssocItemRender::All);
+    } else {
+        // We handle the "reference" primitive type on its own because we only want to list
+        // implementations on generic types.
+        let shared = Rc::clone(&cx.shared);
+        let (concrete, synthetic, blanket_impl) = get_filtered_impls_for_reference(&shared, it);
+
+        render_all_impls(w, cx, it, &concrete, &synthetic, &blanket_impl);
+    }
 }
 
 fn item_constant(w: &mut Buffer, cx: &mut Context<'_>, it: &clean::Item, c: &clean::Constant) {
@@ -1601,21 +1613,6 @@ where
     w.write_str("</code></pre>");
 }
 
-fn render_stability_since(
-    w: &mut Buffer,
-    item: &clean::Item,
-    containing_item: &clean::Item,
-    tcx: TyCtxt<'_>,
-) -> bool {
-    render_stability_since_raw(
-        w,
-        item.stable_since(tcx),
-        item.const_stability(tcx),
-        containing_item.stable_since(tcx),
-        containing_item.const_stable_since(tcx),
-    )
-}
-
 fn compare_impl<'a, 'b>(lhs: &'a &&Impl, rhs: &'b &&Impl, cx: &Context<'_>) -> Ordering {
     let lhss = format!("{}", lhs.inner_impl().print(false, cx));
     let rhss = format!("{}", rhs.inner_impl().print(false, cx));
diff --git a/src/librustdoc/html/render/search_index.rs b/src/librustdoc/html/render/search_index.rs
index d672f0bb5..8eb9c07f8 100644
--- a/src/librustdoc/html/render/search_index.rs
+++ b/src/librustdoc/html/render/search_index.rs
@@ -544,10 +544,15 @@ fn get_fn_inputs_and_outputs<'tcx>(
             (true, _) => (Some(impl_self), &func.generics),
             (_, true) => (Some(impl_self), impl_generics),
             (false, false) => {
-                let mut params = func.generics.params.clone();
-                params.extend(impl_generics.params.clone());
-                let mut where_predicates = func.generics.where_predicates.clone();
-                where_predicates.extend(impl_generics.where_predicates.clone());
+                let params =
+                    func.generics.params.iter().chain(&impl_generics.params).cloned().collect();
+                let where_predicates = func
+                    .generics
+                    .where_predicates
+                    .iter()
+                    .chain(&impl_generics.where_predicates)
+                    .cloned()
+                    .collect();
                 combined_generics = clean::Generics { params, where_predicates };
                 (Some(impl_self), &combined_generics)
             }
diff --git a/src/librustdoc/html/render/span_map.rs b/src/librustdoc/html/render/span_map.rs
index 34d590fb2..151ec2b28 100644
--- a/src/librustdoc/html/render/span_map.rs
+++ b/src/librustdoc/html/render/span_map.rs
@@ -166,25 +166,23 @@ impl<'tcx> Visitor<'tcx> for SpanMapVisitor<'tcx> {
 
     fn visit_expr(&mut self, expr: &'tcx rustc_hir::Expr<'tcx>) {
         if let ExprKind::MethodCall(segment, ..) = expr.kind {
-            if let Some(hir_id) = segment.hir_id {
-                let hir = self.tcx.hir();
-                let body_id = hir.enclosing_body_owner(hir_id);
-                // FIXME: this is showing error messages for parts of the code that are not
-                // compiled (because of cfg)!
-                //
-                // See discussion in https://github.com/rust-lang/rust/issues/69426#issuecomment-1019412352
-                let typeck_results = self.tcx.typeck_body(
-                    hir.maybe_body_owned_by(body_id).expect("a body which isn't a body"),
+            let hir = self.tcx.hir();
+            let body_id = hir.enclosing_body_owner(segment.hir_id);
+            // FIXME: this is showing error messages for parts of the code that are not
+            // compiled (because of cfg)!
+            //
+            // See discussion in https://github.com/rust-lang/rust/issues/69426#issuecomment-1019412352
+            let typeck_results = self
+                .tcx
+                .typeck_body(hir.maybe_body_owned_by(body_id).expect("a body which isn't a body"));
+            if let Some(def_id) = typeck_results.type_dependent_def_id(expr.hir_id) {
+                self.matches.insert(
+                    segment.ident.span,
+                    match hir.span_if_local(def_id) {
+                        Some(span) => LinkFromSrc::Local(clean::Span::new(span)),
+                        None => LinkFromSrc::External(def_id),
+                    },
                 );
-                if let Some(def_id) = typeck_results.type_dependent_def_id(expr.hir_id) {
-                    self.matches.insert(
-                        segment.ident.span,
-                        match hir.span_if_local(def_id) {
-                            Some(span) => LinkFromSrc::Local(clean::Span::new(span)),
-                            None => LinkFromSrc::External(def_id),
-                        },
-                    );
-                }
             }
         } else if self.handle_macro(expr.span) {
             // We don't want to go deeper into the macro.
diff --git a/src/librustdoc/html/render/write_shared.rs b/src/librustdoc/html/render/write_shared.rs
index 6fb41ff32..fc4d46fe6 100644
--- a/src/librustdoc/html/render/write_shared.rs
+++ b/src/librustdoc/html/render/write_shared.rs
@@ -1,5 +1,4 @@
 use std::ffi::OsStr;
-use std::fmt::Write;
 use std::fs::{self, File};
 use std::io::prelude::*;
 use std::io::{self, BufReader};
@@ -10,7 +9,8 @@ use std::sync::LazyLock as Lazy;
 use itertools::Itertools;
 use rustc_data_structures::flock;
 use rustc_data_structures::fx::{FxHashMap, FxHashSet};
-use serde::Serialize;
+use serde::ser::SerializeSeq;
+use serde::{Serialize, Serializer};
 
 use super::{collect_paths_for_type, ensure_trailing_slash, Context, BASIC_KEYWORDS};
 use crate::clean::Crate;
@@ -284,25 +284,43 @@ pub(super) fn write_shared(
         cx.write_shared(SharedResource::Unversioned { name }, contents, &options.emit)?;
     }
 
-    fn collect(path: &Path, krate: &str, key: &str) -> io::Result<(Vec<String>, Vec<String>)> {
+    /// Read a file and return all lines that match the `"{crate}":{data},` format,
+    /// and return a tuple `(Vec<DataString>, Vec<CrateNameString>)`.
+    ///
+    /// This forms the payload of files that look like this:
+    ///
+    /// ```javascript
+    /// var data = {
+    /// "{crate1}":{data},
+    /// "{crate2}":{data}
+    /// };
+    /// use_data(data);
+    /// ```
+    ///
+    /// The file needs to be formatted so that *only crate data lines start with `"`*.
+    fn collect(path: &Path, krate: &str) -> io::Result<(Vec<String>, Vec<String>)> {
         let mut ret = Vec::new();
         let mut krates = Vec::new();
 
         if path.exists() {
-            let prefix = format!(r#"{}["{}"]"#, key, krate);
+            let prefix = format!("\"{}\"", krate);
             for line in BufReader::new(File::open(path)?).lines() {
                 let line = line?;
-                if !line.starts_with(key) {
+                if !line.starts_with('"') {
                     continue;
                 }
                 if line.starts_with(&prefix) {
                     continue;
                 }
-                ret.push(line.to_string());
+                if line.ends_with(',') {
+                    ret.push(line[..line.len() - 1].to_string());
+                } else {
+                    // No comma (it's the case for the last added crate line)
+                    ret.push(line.to_string());
+                }
                 krates.push(
-                    line[key.len() + 2..]
-                        .split('"')
-                        .next()
+                    line.split('"')
+                        .find(|s| !s.is_empty())
                         .map(|s| s.to_owned())
                         .unwrap_or_else(String::new),
                 );
@@ -311,6 +329,20 @@ pub(super) fn write_shared(
         Ok((ret, krates))
     }
 
+    /// Read a file and return all lines that match the <code>"{crate}":{data},\</code> format,
+    /// and return a tuple `(Vec<DataString>, Vec<CrateNameString>)`.
+    ///
+    /// This forms the payload of files that look like this:
+    ///
+    /// ```javascript
+    /// var data = JSON.parse('{\
+    /// "{crate1}":{data},\
+    /// "{crate2}":{data}\
+    /// }');
+    /// use_data(data);
+    /// ```
+    ///
+    /// The file needs to be formatted so that *only crate data lines start with `"`*.
     fn collect_json(path: &Path, krate: &str) -> io::Result<(Vec<String>, Vec<String>)> {
         let mut ret = Vec::new();
         let mut krates = Vec::new();
@@ -526,13 +558,27 @@ if (typeof exports !== 'undefined') {exports.searchIndex = searchIndex};
             },
         };
 
-        #[derive(Serialize)]
         struct Implementor {
             text: String,
             synthetic: bool,
             types: Vec<String>,
         }
 
+        impl Serialize for Implementor {
+            fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
+            where
+                S: Serializer,
+            {
+                let mut seq = serializer.serialize_seq(None)?;
+                seq.serialize_element(&self.text)?;
+                if self.synthetic {
+                    seq.serialize_element(&1)?;
+                    seq.serialize_element(&self.types)?;
+                }
+                seq.end()
+            }
+        }
+
         let implementors = imps
             .iter()
             .filter_map(|imp| {
@@ -563,9 +609,9 @@ if (typeof exports !== 'undefined') {exports.searchIndex = searchIndex};
         }
 
         let implementors = format!(
-            r#"implementors["{}"] = {};"#,
+            r#""{}":{}"#,
             krate.name(cx.tcx()),
-            serde_json::to_string(&implementors).unwrap()
+            serde_json::to_string(&implementors).expect("failed serde conversion"),
         );
 
         let mut mydst = dst.clone();
@@ -576,16 +622,15 @@ if (typeof exports !== 'undefined') {exports.searchIndex = searchIndex};
         mydst.push(&format!("{}.{}.js", remote_item_type, remote_path[remote_path.len() - 1]));
 
         let (mut all_implementors, _) =
-            try_err!(collect(&mydst, krate.name(cx.tcx()).as_str(), "implementors"), &mydst);
+            try_err!(collect(&mydst, krate.name(cx.tcx()).as_str()), &mydst);
         all_implementors.push(implementors);
         // Sort the implementors by crate so the file will be generated
         // identically even with rustdoc running in parallel.
         all_implementors.sort();
 
-        let mut v = String::from("(function() {var implementors = {};\n");
-        for implementor in &all_implementors {
-            writeln!(v, "{}", *implementor).unwrap();
-        }
+        let mut v = String::from("(function() {var implementors = {\n");
+        v.push_str(&all_implementors.join(",\n"));
+        v.push_str("\n};");
         v.push_str(
             "if (window.register_implementors) {\
                  window.register_implementors(implementors);\