From c8bad797732f24befd68aca0deb2467b5d8c40c1 Mon Sep 17 00:00:00 2001
From: Guillaume Gomez <guillaume1.gomez@gmail.com>
Date: Thu, 3 Dec 2020 22:27:40 +0100
Subject: [PATCH] Add support for warning section

---
 src/librustdoc/html/static/rustdoc.css      | 13 +++++++++++++
 src/librustdoc/html/static/themes/ayu.css   |  9 ++++++++-
 src/librustdoc/html/static/themes/dark.css  |  9 ++++++++-
 src/librustdoc/html/static/themes/light.css |  9 ++++++++-
 4 files changed, 37 insertions(+), 3 deletions(-)

diff --git a/src/librustdoc/html/static/rustdoc.css b/src/librustdoc/html/static/rustdoc.css
index 8eef65a231d0b..79c5a2d1221e4 100644
--- a/src/librustdoc/html/static/rustdoc.css
+++ b/src/librustdoc/html/static/rustdoc.css
@@ -332,10 +332,23 @@ nav.sub {
 
 .rustdoc:not(.source) .example-wrap {
 	display: inline-flex;
+}
+.rustdoc:not(.source) .example-wrap, #main div.rustdoc-warning {
 	margin-bottom: 10px;
 	position: relative;
 }
 
+#main div.rustdoc-warning {
+	padding: 10px;
+	border-left: 2px solid;
+}
+#main div.rustdoc-warning::before {
+	content: "⚠";
+	position: absolute;
+	left: -25px;
+	font-size: 20px;
+}
+
 .example-wrap {
 	width: 100%;
 }
diff --git a/src/librustdoc/html/static/themes/ayu.css b/src/librustdoc/html/static/themes/ayu.css
index c1f796f09e804..edf7e7d01b46b 100644
--- a/src/librustdoc/html/static/themes/ayu.css
+++ b/src/librustdoc/html/static/themes/ayu.css
@@ -53,7 +53,7 @@ span code {
 .docblock code, .docblock-short code {
 	background-color: #191f26;
 }
-pre {
+pre, #main div.rustdoc-warning {
 	color: #e6e1cf;
 	background-color: #191f26;
 }
@@ -336,6 +336,13 @@ a.test-arrow:hover {
 	border-right: 3px solid rgba(255, 180, 76, 0.85);
 }
 
+#main div.rustdoc-warning {
+	border-left-color: #f00;
+}
+#main div.rustdoc-warning::before {
+	color: #f00;
+}
+
 pre.compile_fail {
 	border-left: 2px solid rgba(255,0,0,.4);
 }
diff --git a/src/librustdoc/html/static/themes/dark.css b/src/librustdoc/html/static/themes/dark.css
index 946ca0a40c9dc..441c3e32f2c61 100644
--- a/src/librustdoc/html/static/themes/dark.css
+++ b/src/librustdoc/html/static/themes/dark.css
@@ -26,7 +26,7 @@ h4:not(.method):not(.type):not(.tymethod) {
 .docblock code, .docblock-short code {
 	background-color: #2A2A2A;
 }
-pre {
+pre, #main div.rustdoc-warning {
 	background-color: #2A2A2A;
 }
 
@@ -285,6 +285,13 @@ a.test-arrow:hover{
 	border-right: 3px solid #bb7410;
 }
 
+#main div.rustdoc-warning {
+	border-left-color: #f00;
+}
+#main div.rustdoc-warning::before {
+	color: #f00;
+}
+
 pre.compile_fail {
 	border-left: 2px solid rgba(255,0,0,.8);
 }
diff --git a/src/librustdoc/html/static/themes/light.css b/src/librustdoc/html/static/themes/light.css
index e0b9a04921a80..cc5b5645b2930 100644
--- a/src/librustdoc/html/static/themes/light.css
+++ b/src/librustdoc/html/static/themes/light.css
@@ -28,7 +28,7 @@ h4:not(.method):not(.type):not(.tymethod) {
 .docblock code, .docblock-short code {
 	background-color: #F5F5F5;
 }
-pre {
+pre, #main div.rustdoc-warning {
 	background-color: #F5F5F5;
 }
 
@@ -277,6 +277,13 @@ a.test-arrow:hover{
 	border-right: 3px solid #ffb44c;
 }
 
+#main div.rustdoc-warning {
+	border-left-color: #f00;
+}
+#main div.rustdoc-warning::before {
+	color: #f00;
+}
+
 pre.compile_fail {
 	border-left: 2px solid rgba(255,0,0,.5);
 }