From 810fa1e812168b68e871bb194f77e5e4394a1b05 Mon Sep 17 00:00:00 2001
From: Ivan Tham <pickfire@riseup.net>
Date: Sun, 5 Jan 2020 01:08:39 +0800
Subject: [PATCH 1/2] Add methods properties in emoji to sidebar

Fix #67869
---
 src/librustdoc/html/render.rs | 24 +++++++++++++++++++-----
 1 file changed, 19 insertions(+), 5 deletions(-)

diff --git a/src/librustdoc/html/render.rs b/src/librustdoc/html/render.rs
index ad059463aa43a..baa4803e2ff16 100644
--- a/src/librustdoc/html/render.rs
+++ b/src/librustdoc/html/render.rs
@@ -4063,11 +4063,25 @@ fn get_methods(
         .filter_map(|item| match item.name {
             Some(ref name) if !name.is_empty() && item.is_method() => {
                 if !for_deref || should_render_item(item, deref_mut) {
-                    Some(format!(
-                        "<a href=\"#{}\">{}</a>",
-                        get_next_url(used_links, format!("method.{}", name)),
-                        name
-                    ))
+                    let mut emojis = String::new();
+                    if let clean::FunctionItem(ref func) | clean::ForeignFunctionItem(ref func) = item.inner {
+                        if func.header.unsafety == hir::Unsafety::Unsafe {
+                            emojis += "⚠";
+                        }
+                    }
+                    if let Some(stab) = item.stability.as_ref().filter(|stab| stab.level == stability::Unstable) {
+                        let is_rustc_private = stab.feature.as_ref().map(|s| &**s) == Some("rustc_private");
+                        emojis += if is_rustc_private { "⚙️" } else { "🔬" };
+                    };
+                    if item.deprecation().is_some() {
+                        emojis += "⚰️";
+                    }
+                    if !emojis.is_empty() {
+                        emojis.insert_str(0, "<sup>");
+                        emojis.push_str("</sup>");
+                    }
+                    let url = get_next_url(used_links, format!("method.{}", name));
+                    Some(format!("<a href=\"#{}\">{}{}</a>", url, name, emojis))
                 } else {
                     None
                 }

From 7568ac70a39561973be640495bf5901ce5a6ea5d Mon Sep 17 00:00:00 2001
From: Ivan Tham <pickfire@riseup.net>
Date: Sun, 5 Jan 2020 22:29:11 +0800
Subject: [PATCH 2/2] Update src/librustdoc/html/render.rs

Co-Authored-By: lzutao <taolzu@gmail.com>
---
 src/librustdoc/html/render.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/librustdoc/html/render.rs b/src/librustdoc/html/render.rs
index baa4803e2ff16..3c72fdb5d9cb7 100644
--- a/src/librustdoc/html/render.rs
+++ b/src/librustdoc/html/render.rs
@@ -4070,7 +4070,7 @@ fn get_methods(
                         }
                     }
                     if let Some(stab) = item.stability.as_ref().filter(|stab| stab.level == stability::Unstable) {
-                        let is_rustc_private = stab.feature.as_ref().map(|s| &**s) == Some("rustc_private");
+                        let is_rustc_private = stab.feature.as_deref() == Some("rustc_private");
                         emojis += if is_rustc_private { "⚙️" } else { "🔬" };
                     };
                     if item.deprecation().is_some() {