From da18df285910446d5b4c212b96379e694f47533f Mon Sep 17 00:00:00 2001
From: Trevor Spiteri <tspiteri@ieee.org>
Date: Sun, 3 May 2020 15:17:45 +0200
Subject: [PATCH] doc: make impl block collapsible if it has an associated
 constant

Fixes #71822.
---
 src/librustdoc/html/static/main.js | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/librustdoc/html/static/main.js b/src/librustdoc/html/static/main.js
index 22c9426db2036..5b8c4890e8374 100644
--- a/src/librustdoc/html/static/main.js
+++ b/src/librustdoc/html/static/main.js
@@ -2366,7 +2366,9 @@ function defocusSearchBar() {
             if (!next) {
                 return;
             }
-            if (next.getElementsByClassName("method").length > 0 && hasClass(e, "impl")) {
+            if (hasClass(e, "impl") &&
+                (next.getElementsByClassName("method").length > 0 ||
+                 next.getElementsByClassName("associatedconstant").length > 0)) {
                 insertAfter(toggle.cloneNode(true), e.childNodes[e.childNodes.length - 1]);
             }
         };