From 78a41969f68fba450374583fb1d2f3a8533bf760 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Daniel=20D=C3=A4schle?= <daniel.daeschle@gmail.com>
Date: Tue, 13 Jul 2021 18:44:22 +0200
Subject: [PATCH] vdoc: fancier attributes (#10789)

---
 cmd/tools/vdoc/html.v            |  17 +-
 cmd/tools/vdoc/resources/doc.css | 888 ++++++++++++++++---------------
 vlib/v/doc/doc.v                 |   3 -
 3 files changed, 475 insertions(+), 433 deletions(-)

diff --git a/cmd/tools/vdoc/html.v b/cmd/tools/vdoc/html.v
index bfb6d5daf1..07099ca9ac 100644
--- a/cmd/tools/vdoc/html.v
+++ b/cmd/tools/vdoc/html.v
@@ -441,9 +441,9 @@ fn doc_node_html(dn doc.DocNode, link string, head bool, include_examples bool,
 	highlighted_code := html_highlight(dn.content, tb)
 	node_class := if dn.kind == .const_group { ' const' } else { '' }
 	sym_name := get_sym_name(dn)
-	mut tags := dn.tags
+	has_deprecated := 'deprecated' in dn.tags
+	mut tags := dn.tags.filter(it != 'deprecated')
 	tags.sort()
-	tags_str := ' ' + tags.map('<span class="$it-attribute-tag">[$it]</span>').join('') + ' '
 	mut node_id := get_node_id(dn)
 	mut hash_link := if !head { ' <a href="#$node_id">#</a>' } else { '' }
 	if head && is_module_readme(dn) {
@@ -453,15 +453,24 @@ fn doc_node_html(dn doc.DocNode, link string, head bool, include_examples bool,
 	dnw.writeln('${tabs[1]}<section id="$node_id" class="doc-node$node_class">')
 	if dn.name.len > 0 {
 		if dn.kind == .const_group {
-			dnw.write_string('${tabs[2]}<div class="title"><$head_tag>$sym_name$tags_str$hash_link</$head_tag>')
+			dnw.write_string('${tabs[2]}<div class="title"><$head_tag>$sym_name$hash_link</$head_tag>')
 		} else {
-			dnw.write_string('${tabs[2]}<div class="title"><$head_tag>$dn.kind $sym_name$tags_str$hash_link</$head_tag>')
+			dnw.write_string('${tabs[2]}<div class="title"><$head_tag>$dn.kind $sym_name$hash_link</$head_tag>')
 		}
 		if link.len != 0 {
 			dnw.write_string('<a class="link" rel="noreferrer" target="_blank" href="$link">$link_svg</a>')
 		}
 		dnw.write_string('</div>')
 	}
+	if tags.len > 0 || has_deprecated {
+		mut attributes := if has_deprecated {
+			'<div class="attribute attribute-deprecated">deprecated</div>'
+		} else {
+			''
+		}
+		attributes += tags.map('<div class="attribute">$it</div>').join('')
+		dnw.writeln('<div class="attributes">$attributes</div>')
+	}
 	if !head && dn.content.len > 0 {
 		dnw.writeln('<pre class="signature"><code>$highlighted_code</code></pre>')
 	}
diff --git a/cmd/tools/vdoc/resources/doc.css b/cmd/tools/vdoc/resources/doc.css
index db0c59a431..a63d357834 100644
--- a/cmd/tools/vdoc/resources/doc.css
+++ b/cmd/tools/vdoc/resources/doc.css
@@ -1,412 +1,446 @@
 :root {
-	--background-color: #fff;
-	--link-color: #2779bd;
-	--text-color: #000;
-	--ref-symbol-color: #dae1e7;
-	--ref-symbol-hover-color: #b8c2cc;
-	--title-bottom-line-color: #f1f5f8;
-	--footer-top-line-color: #f1f5f8;
-	--footer-text-color: #616161;
-	--code-signature-border-color: #a0aec0;
-	--menu-background-color: #4b6c88;
-	--menu-text-color: #fff;
-	--menu-indent-line-color: #3b3b3b66;
-	--menu-indent-line-active-color: #00000066;
-	--menu-scrollbar-color: #a0aec0;
-	--menu-toggle-icon-color: #fff;
-	--menu-toggle-icon-hover-color: #00000044;
-	--menu-search-background-color: #00000044;
-	--menu-search-font-color: #fff;
-	--menu-search-result-background-hover-color: #00000021;
-	--menu-search-separator-color: #00000044;
-	--menu-search-title-text-color: #d5efff;
-	--menu-search-badge-background-color: #00000044;
-	--menu-search-badge-background-hover-color: #0000004d;
-	--toc-text-color: #2779bd;
-	--toc-indicator-color: #4299e1;
-	--code-default-text-color: #5c6e74;
-	--code-background-color: #edf2f7;
-	--code-keyword-text-color: #2b6cb0;
-	--code-builtin-text-color: #0a0a0a;
-	--code-function-text-color: #319795;
-	--code-comment-text-color: #93a1a1;
-	--code-punctuation-text-color: #999999;
-	--code-symbol-text-color: #702459;
-	--code-operator-text-color: #a67f59;
+  --background-color: #fff;
+  --link-color: #2779bd;
+  --text-color: #000;
+  --ref-symbol-color: #dae1e7;
+  --ref-symbol-hover-color: #b8c2cc;
+  --title-bottom-line-color: #f1f5f8;
+  --footer-top-line-color: #f1f5f8;
+  --footer-text-color: #616161;
+  --code-signature-border-color: #a0aec0;
+  --menu-background-color: #4b6c88;
+  --menu-text-color: #fff;
+  --menu-indent-line-color: #3b3b3b66;
+  --menu-indent-line-active-color: #00000066;
+  --menu-scrollbar-color: #a0aec0;
+  --menu-toggle-icon-color: #fff;
+  --menu-toggle-icon-hover-color: #00000044;
+  --menu-search-background-color: #00000044;
+  --menu-search-font-color: #fff;
+  --menu-search-result-background-hover-color: #00000021;
+  --menu-search-separator-color: #00000044;
+  --menu-search-title-text-color: #d5efff;
+  --menu-search-badge-background-color: #00000044;
+  --menu-search-badge-background-hover-color: #0000004d;
+  --toc-text-color: #2779bd;
+  --toc-indicator-color: #4299e1;
+  --code-default-text-color: #5c6e74;
+  --code-background-color: #edf2f7;
+  --code-keyword-text-color: #2b6cb0;
+  --code-builtin-text-color: #0a0a0a;
+  --code-function-text-color: #319795;
+  --code-comment-text-color: #93a1a1;
+  --code-punctuation-text-color: #999999;
+  --code-symbol-text-color: #702459;
+  --code-operator-text-color: #a67f59;
+  --attribute-deprecated-background-color: #f59f0b48;
+  --attribute-deprecated-text-color: #92400e;
+  --attribute-text-color: #000000af;
 }
 :root.dark .dark-icon {
-	display: none;
+  display: none;
 }
 :root:not(.dark) .light-icon {
-	display: none;
+  display: none;
 }
 
 .dark body {
-	--background-color: #1a202c;
-	--text-color: #fff;
-	--link-color: #90cdf4;
-	--ref-symbol-color: #2d3748;
-	--ref-symbol-hover-color: #4a5568;
-	--title-bottom-line-color: #2d3748;
-	--footer-top-line-color: #2d3748;
-	--footer-text-color: #bbd3e1;
-	--code-signature-border-color: #4a5568;
-	--menu-background-color: #2d3748;
-	--menu-text-color: #fff;
-	--menu-indent-line-color: #4a5568;
-	--menu-indent-line-active-color: #90cdf4; /*#4a5568*/
-	--menu-scrollbar-color: #4a5568;
-	--menu-toggle-icon-color: #fff;
-	--menu-search-background-color: #4a5568;
-	--menu-search-font-color: #fff;
-	--menu-search-separator-color: #4a5568;
-	--menu-search-title-text-color: #90cdf4;
-	--menu-search-badge-background-color: #4a5568;
-	--menu-search-badge-background-hover-color: #4a5568;
-	--toc-text-color: #90cdf4;
-	--toc-indicator-color: #4299e1;
-	--code-default-text-color: #cbd5e0;
-	--code-background-color: #2d3748;
-	--code-builtin-text-color: #68d391;
-	--code-keyword-text-color: #63b3ed;
-	--code-function-text-color: #4fd1c5;
-	--code-comment-text-color: #a0aec0;
-	--code-punctuation-text-color: #a0aec0;
-	--code-symbol-text-color: #ed64a6;
+  --background-color: #1a202c;
+  --text-color: #fff;
+  --link-color: #90cdf4;
+  --ref-symbol-color: #2d3748;
+  --ref-symbol-hover-color: #4a5568;
+  --title-bottom-line-color: #2d3748;
+  --footer-top-line-color: #2d3748;
+  --footer-text-color: #bbd3e1;
+  --code-signature-border-color: #4a5568;
+  --menu-background-color: #2d3748;
+  --menu-text-color: #fff;
+  --menu-indent-line-color: #4a5568;
+  --menu-indent-line-active-color: #90cdf4; /*#4a5568*/
+  --menu-scrollbar-color: #4a5568;
+  --menu-toggle-icon-color: #fff;
+  --menu-search-background-color: #4a5568;
+  --menu-search-font-color: #fff;
+  --menu-search-separator-color: #4a5568;
+  --menu-search-title-text-color: #90cdf4;
+  --menu-search-badge-background-color: #4a5568;
+  --menu-search-badge-background-hover-color: #4a5568;
+  --toc-text-color: #90cdf4;
+  --toc-indicator-color: #4299e1;
+  --code-default-text-color: #cbd5e0;
+  --code-background-color: #2d3748;
+  --code-builtin-text-color: #68d391;
+  --code-keyword-text-color: #63b3ed;
+  --code-function-text-color: #4fd1c5;
+  --code-comment-text-color: #a0aec0;
+  --code-punctuation-text-color: #a0aec0;
+  --code-symbol-text-color: #ed64a6;
+  --attribute-background-color: #ffffff20;
+  --attribute-text-color: #ffffffaf;
+  --attribute-deprecated-text-color: #fef3c7;
 }
 html {
-	height: 100%;
+  height: 100%;
 }
 body {
-	margin: 0;
-	font-family: Roboto, -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol";
-	background-color: #fff;
-	background-color: var(--background-color);
-	color: #000;
-	color: var(--text-color);
-	height: 100%;
+  margin: 0;
+  font-family: Roboto, -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica,
+    Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol";
+  background-color: #fff;
+  background-color: var(--background-color);
+  color: #000;
+  color: var(--text-color);
+  height: 100%;
 }
 #page {
-	height: 100%;
-	padding-top: 56px;
-	box-sizing: border-box;
-	overflow: hidden;
+  height: 100%;
+  padding-top: 56px;
+  box-sizing: border-box;
+  overflow: hidden;
 }
 
 /** Reset for menus */
 .doc-nav ul,
 .doc-toc ul {
-	list-style: none;
-	padding: 0;
-	margin: 0;
+  list-style: none;
+  padding: 0;
+  margin: 0;
 }
 
 /* Left nav */
 .doc-nav {
-	position: fixed;
-	width: 100%;
-	left: 0;
-	right: 0;
-	top: 0;
-	display: flex;
-	background-color: #4b6c88;
-	background-color: var(--menu-background-color);
-	color: #fff;
-	color: var(--menu-text-color);
-	flex-direction: column;
-	overflow-y: auto;
-	height: 100vh;
-	z-index: 10;
-	scrollbar-width: thin;
-	scrollbar-color: #a0aec0 transparent;
-	scrollbar-color: var(--menu-scrollbar-color) transparent;
-	font-family: "Work Sans", sans-serif;
+  position: fixed;
+  width: 100%;
+  left: 0;
+  right: 0;
+  top: 0;
+  display: flex;
+  background-color: #4b6c88;
+  background-color: var(--menu-background-color);
+  color: #fff;
+  color: var(--menu-text-color);
+  flex-direction: column;
+  overflow-y: auto;
+  height: 100vh;
+  z-index: 10;
+  scrollbar-width: thin;
+  scrollbar-color: #a0aec0 transparent;
+  scrollbar-color: var(--menu-scrollbar-color) transparent;
+  font-family: "Work Sans", sans-serif;
 }
 *::-webkit-scrollbar {
-	width: 4px;
-	height: 4px;
+  width: 4px;
+  height: 4px;
 }
 *::-webkit-scrollbar-track {
-	background: transparent;
+  background: transparent;
 }
 *::-webkit-scrollbar-thumb {
-	background-color: #a0aec0;
-	background-color: var(--menu-scrollbar-color);
-	border: 3px solid transparent;
+  background-color: #a0aec0;
+  background-color: var(--menu-scrollbar-color);
+  border: 3px solid transparent;
 }
 .doc-nav .content li {
-	line-height: 1.8;
+  line-height: 1.8;
 }
 .doc-nav .content.show {
-	display: flex;
+  display: flex;
 }
 .doc-nav .content.hidden {
-	display: none;
+  display: none;
 }
 .doc-nav #toggle-menu {
-	cursor: pointer;
-	padding: 0.3rem;
-	fill: #fff;
-	fill: var(--menu-toggle-icon-color);
+  cursor: pointer;
+  padding: 0.3rem;
+  fill: #fff;
+  fill: var(--menu-toggle-icon-color);
 }
 .doc-nav > .heading-container {
-	position: relative;
-	/* IE11 */
-	position: sticky;
-	position: -webkit-sticky;
-	top: 0;
-	background-color: #4b6c88;
-	background-color: var(--menu-background-color);
-	z-index: 10;
+  position: relative;
+  /* IE11 */
+  position: sticky;
+  position: -webkit-sticky;
+  top: 0;
+  background-color: #4b6c88;
+  background-color: var(--menu-background-color);
+  z-index: 10;
 }
 .doc-nav > .heading-container > .heading {
-	display: flex;
-	flex-direction: column;
+  display: flex;
+  flex-direction: column;
 }
 .doc-nav > .heading-container > .heading > .info {
-	display: flex;
-	padding: 0 1rem;
-	height: 56px;
+  display: flex;
+  padding: 0 1rem;
+  height: 56px;
 }
 .doc-nav > .heading-container > .heading > .info > .module {
-	font-size: 1.6rem;
-	font-weight: 500;
-	margin: 0;
+  font-size: 1.6rem;
+  font-weight: 500;
+  margin: 0;
 }
 .doc-nav > .heading-container > .heading > .info > .toggle-version-container {
-	display: flex;
-	align-items: center;
+  display: flex;
+  align-items: center;
 }
-.doc-nav > .heading-container > .heading > .info > .toggle-version-container > #dark-mode-toggle {
-	cursor: pointer;
-	fill: #fff;
-	display: flex;
-	visibility: hidden;
+.doc-nav
+  > .heading-container
+  > .heading
+  > .info
+  > .toggle-version-container
+  > #dark-mode-toggle {
+  cursor: pointer;
+  fill: #fff;
+  display: flex;
+  visibility: hidden;
 }
-.doc-nav > .heading-container > .heading > .info > .toggle-version-container > #dark-mode-toggle > svg {
-	width: 1.2rem;
-	height: 1.2rem;
+.doc-nav
+  > .heading-container
+  > .heading
+  > .info
+  > .toggle-version-container
+  > #dark-mode-toggle
+  > svg {
+  width: 1.2rem;
+  height: 1.2rem;
 }
 .doc-nav > .heading-container > .heading > #search {
-	margin: 0.6rem 1.2rem 1rem 1.2rem;
-	border: none;
-	border-radius: 0.2rem;
-	padding: 0.5rem 1rem;
-	outline: none;
-	background-color: #00000044;
-	background-color: var(--menu-search-background-color);
-	color: #fff;
-	color: var(--menu-search-text-color);
+  margin: 0.6rem 1.2rem 1rem 1.2rem;
+  border: none;
+  border-radius: 0.2rem;
+  padding: 0.5rem 1rem;
+  outline: none;
+  background-color: #00000044;
+  background-color: var(--menu-search-background-color);
+  color: #fff;
+  color: var(--menu-search-text-color);
 }
 .doc-nav > .heading-container > .heading > #search::placeholder {
-	color: #edf2f7;
-	text-transform: uppercase;
-	font-size: 12px;
-	font-weight: 600;
+  color: #edf2f7;
+  text-transform: uppercase;
+  font-size: 12px;
+  font-weight: 600;
 }
 .doc-nav > .heading-container > .heading > #search:-ms-input-placeholder {
-	color: #edf2f7;
-	text-transform: uppercase;
-	font-size: 12px;
-	font-weight: 600;
+  color: #edf2f7;
+  text-transform: uppercase;
+  font-size: 12px;
+  font-weight: 600;
 }
 .doc-nav > .content {
-	padding: 0 2rem 2rem 2rem;
-	display: flex;
-	flex-direction: column;
+  padding: 0 2rem 2rem 2rem;
+  display: flex;
+  flex-direction: column;
 }
 .doc-nav > .content > ul > li.active {
-	font-weight: 600;
+  font-weight: 600;
 }
 .doc-nav > .content > ul > li.open ul {
-	display: initial;
+  display: initial;
 }
 .doc-nav > .content > ul > li.open > .menu-row > .dropdown-arrow {
-	transform: initial;
+  transform: initial;
 }
 .doc-nav > .content > ul > li > .menu-row {
-	display: flex;
-	align-items: center;
+  display: flex;
+  align-items: center;
 }
 .doc-nav > .content > ul > li > .menu-row > .dropdown-arrow {
-	transform: rotate(-90deg);
-	height: 18px;
-	width: 18px;
-	margin-left: calc(-18px - 0.3rem);
-	margin-right: 0.3rem;
-	cursor: pointer;
-	fill: #fff;
-	pointer-events: all;
+  transform: rotate(-90deg);
+  height: 18px;
+  width: 18px;
+  margin-left: calc(-18px - 0.3rem);
+  margin-right: 0.3rem;
+  cursor: pointer;
+  fill: #fff;
+  pointer-events: all;
 }
 .doc-nav > .content > ul > li > ul {
-	margin: 0.4rem 0;
-	display: none;
+  margin: 0.4rem 0;
+  display: none;
 }
 .doc-nav > .content > ul > li > ul > li {
-	border-color: #ffffff66;
-	border-color: var(--menu-indent-line-color);
-	border-left-width: 1.7px;
-	border-left-style: solid;
-	padding-left: 0.7rem;
+  border-color: #ffffff66;
+  border-color: var(--menu-indent-line-color);
+  border-left-width: 1.7px;
+  border-left-style: solid;
+  padding-left: 0.7rem;
 }
 .doc-nav > .content > ul > li > ul > li.active {
-	border-color: #00000066;
-	border-color: var(--menu-search-result-hover-background-color);
+  border-color: #00000066;
+  border-color: var(--menu-search-result-hover-background-color);
 }
 .doc-nav > .content a {
-	color: #fff;
-	color: var(--menu-text-color);
-	text-decoration: none;
-	user-select: none;
+  color: #fff;
+  color: var(--menu-text-color);
+  text-decoration: none;
+  user-select: none;
 }
 .doc-nav > .content a:hover {
-	text-decoration: underline;
+  text-decoration: underline;
 }
 .doc-nav .search.hidden {
-	display: none;
+  display: none;
 }
 .doc-nav .search li {
-	line-height: 1.5;
+  line-height: 1.5;
 }
 .doc-nav > .search .result:hover {
-	background-color: #00000021;
-	background-color: var(--menu-search-result-background-hover-color);
+  background-color: #00000021;
+  background-color: var(--menu-search-result-background-hover-color);
 }
 .doc-nav > .search .result:hover > .link > .definition > .badge {
-	background-color: #0000004d;
-	background-color: var(--menu-search-badge-background-hover-color);
+  background-color: #0000004d;
+  background-color: var(--menu-search-badge-background-hover-color);
 }
 .doc-nav > .search .result > .link {
-	padding: 0.5rem 1.4rem;
-	text-decoration: none;
-	color: #fff;
-	color: var(--menu-text-color);
-	display: block;
+  padding: 0.5rem 1.4rem;
+  text-decoration: none;
+  color: #fff;
+  color: var(--menu-text-color);
+  display: block;
 }
 .doc-nav > .search .result > .link > .definition {
-	display: flex;
+  display: flex;
 }
 .doc-nav > .search .result > .link > .definition > .title {
-	color: #90cdf4;
-	color: var(--menu-search-title-text-color);
-	font-size: 0.875rem;
-	font-weight: 500;
-	overflow: hidden;
-    white-space: nowrap;
-    text-overflow: ellipsis;
+  color: #90cdf4;
+  color: var(--menu-search-title-text-color);
+  font-size: 0.875rem;
+  font-weight: 500;
+  overflow: hidden;
+  white-space: nowrap;
+  text-overflow: ellipsis;
 }
 .doc-nav > .search .result > .link > .definition > .badge {
-	font-size: 0.75rem;
-	display: inline-flex;
-	padding: 0 0.5rem;
-	background-color: #00000044;
-	background-color: var(--menu-search-badge-background-color);
-	margin-left: auto;
-	align-items: center;
-	border-radius: 9999px;
-	font-weight: 500;
+  font-size: 0.75rem;
+  display: inline-flex;
+  padding: 0 0.5rem;
+  background-color: #00000044;
+  background-color: var(--menu-search-badge-background-color);
+  margin-left: auto;
+  align-items: center;
+  border-radius: 9999px;
+  font-weight: 500;
 }
 .doc-nav > .search .result > .link > .description {
-	font-family: Roboto, -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol";
-	font-size: 0.75rem;
-    overflow: hidden;
-    white-space: nowrap;
-    text-overflow: ellipsis;
-	margin-top: 0.25rem;
+  font-family: Roboto, -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica,
+    Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol";
+  font-size: 0.75rem;
+  overflow: hidden;
+  white-space: nowrap;
+  text-overflow: ellipsis;
+  margin-top: 0.25rem;
 }
 .doc-nav > .search > hr.separator {
-	margin: 0.5rem 0;
-	border-color: #00000044;
-	border-color: var(--menu-search-separator-color);
-	box-sizing: content-box;
-	height: 0;
-	border-width: 0;
-	border-top-width: 1px;
-	border-style: solid;
-    overflow: visible;
+  margin: 0.5rem 0;
+  border-color: #00000044;
+  border-color: var(--menu-search-separator-color);
+  box-sizing: content-box;
+  height: 0;
+  border-width: 0;
+  border-top-width: 1px;
+  border-style: solid;
+  overflow: visible;
 }
 
 /* Main content */
 .doc-scrollview {
-	height: 100%;
-	overflow-y: scroll;
+  height: 100%;
+  overflow-y: scroll;
 }
 .doc-container {
-	display: flex;
-	flex-direction: column-reverse;
+  display: flex;
+  flex-direction: column-reverse;
 }
 .doc-content {
-	display: flex;
-	flex-direction: column;
-	padding: 1rem;
-	overflow: hidden;
+  display: flex;
+  flex-direction: column;
+  padding: 1rem;
+  overflow: hidden;
 }
 .doc-content img {
-	width: auto;
-	max-width: 100%;
+  width: auto;
+  max-width: 100%;
 }
 .doc-content p {
-	line-height: 1.4;
+  line-height: 1.4;
 }
 .doc-content a {
-	color: #2779bd;
-	color: var(--link-color);
+  color: #2779bd;
+  color: var(--link-color);
 }
 .doc-content > .doc-node {
-	padding: 5rem 0 2rem 0;
-	margin-top: -4rem;
-	overflow: hidden;
-	word-break: break-all; /* IE11 */
-	word-break: break-word;
+  padding: 5rem 0 2rem 0;
+  margin-top: -4rem;
+  overflow: hidden;
+  word-break: break-all; /* IE11 */
+  word-break: break-word;
 }
 .doc-content > .doc-node.const:nth-child(2) {
   padding-bottom: 0 !important;
 }
 .doc-content > .doc-node.const:not(:first-child) {
-	padding-top: 4rem;
+  padding-top: 4rem;
 }
 .doc-content > .doc-node.const:not(:last-child) {
-	padding-bottom: 2rem;
+  padding-bottom: 2rem;
 }
 .doc-content > .timestamp {
-	font-size: 0.8rem;
-	color: #b8c2cc;
-	color: var(--timestamp-color);
+  font-size: 0.8rem;
+  color: #b8c2cc;
+  color: var(--timestamp-color);
 }
 .doc-content > .doc-node > .title {
-	display: flex;
-	font-family: "Work Sans", sans-serif;
-	font-weight: 500;
-	padding: 0.3rem;
-	align-items: center;
-	margin-bottom: 1rem;
-	border-bottom: 1px solid #f1f5f8;
-	border-bottom: 1px solid var(--title-bottom-line-color);
+  display: flex;
+  font-family: "Work Sans", sans-serif;
+  font-weight: 500;
+  padding: 0.3rem;
+  align-items: center;
+  margin-bottom: 1rem;
+  border-bottom: 1px solid #f1f5f8;
+  border-bottom: 1px solid var(--title-bottom-line-color);
+}
+.doc-content > .doc-node > .attributes {
+  margin-bottom: 0.6rem;
+}
+.doc-content > .doc-node > .attributes > .attribute {
+  display: inline-block;
+  border-radius: 100px;
+  padding: 0.3rem 0.6rem;
+  background-color: var(--code-background-color);
+  color: var(--attribute-text-color);
+  margin-right: 0.8rem;
+}
+.doc-content > .doc-node > .attributes > .attribute-deprecated {
+  background-color: var(--attribute-deprecated-background-color);
+  color: var(--attribute-deprecated-text-color);
 }
 .doc-content > .doc-node > .title > .link {
-	display: flex;
-	margin-left: auto;
-	fill: #dae1e7;
-	fill: var(--ref-symbol-color);
+  display: flex;
+  margin-left: auto;
+  fill: #dae1e7;
+  fill: var(--ref-symbol-color);
 }
 .doc-content > .doc-node > .title > .link:hover {
-	fill: #b8c2cc;
-	fill: var(--ref-symbol-hover-color);
+  fill: #b8c2cc;
+  fill: var(--ref-symbol-hover-color);
 }
 .doc-content > .doc-node h1 {
-	font-size: 2rem;
+  font-size: 2rem;
 }
 .doc-content > .doc-node h2 {
-	font-size: 1.3rem;
+  font-size: 1.3rem;
 }
 .doc-content > .doc-node .signature {
-	border-color: #a0aec0;
-	border-color: var(--code-signature-border-color);
-	border-left-width: 3px;
-	border-left-style: solid;
+  border-color: #a0aec0;
+  border-color: var(--code-signature-border-color);
+  border-left-width: 3px;
+  border-left-style: solid;
 }
 .doc-content > .doc-node > ul > li .task-list-item-checkbox {
-	margin-right: 0.5rem;
+  margin-right: 0.5rem;
 }
 .doc-content > .doc-node > .title h1,
 .doc-content > .doc-node > .title h2,
@@ -414,8 +448,8 @@ body {
 .doc-content > .doc-node > .title h4,
 .doc-content > .doc-node > .title h5,
 .doc-content > .doc-node > .title h6 {
-	font-weight: 500;
-	margin: 0;
+  font-weight: 500;
+  margin: 0;
 }
 .doc-content > .doc-node > .title h1 a,
 .doc-content > .doc-node > .title h2 a,
@@ -423,9 +457,9 @@ body {
 .doc-content > .doc-node > .title h4 a,
 .doc-content > .doc-node > .title h5 a,
 .doc-content > .doc-node > .title h6 a {
-	text-decoration: none;
-	color: #dae1e7;
-	color: var(--ref-symbol-color);
+  text-decoration: none;
+  color: #dae1e7;
+  color: var(--ref-symbol-color);
 }
 .doc-content > .doc-node > .title h1 a:hover,
 .doc-content > .doc-node > .title h2 a:hover,
@@ -433,75 +467,77 @@ body {
 .doc-content > .doc-node > .title h4 a:hover,
 .doc-content > .doc-node > .title h5 a:hover,
 .doc-content > .doc-node > .title h6 a:hover {
-	color: #b8c2cc;
-	color: var(--ref-symbol-hover-color);
+  color: #b8c2cc;
+  color: var(--ref-symbol-hover-color);
 }
 .doc-content > .footer {
-	padding-top: 1rem;
-	margin-top: auto;
-	bottom: 1rem;
-	color: 616161;
-	color: var(--footer-text-color);
-	border-color: #f1f5f8;
-	border-color: var(--footer-top-line-color);
-	border-top-style: solid;
-	border-top-width: 1px;
-	font-size: 0.8rem;
-	font-weight: 500;
+  padding-top: 1rem;
+  margin-top: auto;
+  bottom: 1rem;
+  color: 616161;
+  color: var(--footer-text-color);
+  border-color: #f1f5f8;
+  border-color: var(--footer-top-line-color);
+  border-top-style: solid;
+  border-top-width: 1px;
+  font-size: 0.8rem;
+  font-weight: 500;
 }
 
 /* Right menu */
 .doc-toc {
-	right: 0;
-	top: 0;
-	height: 100%;
-	overflow-y: auto;
-	padding: 1rem 1rem 0 1rem;
-	width: 100%;
-	box-sizing: border-box;
-	-ms-overflow-style: none;
-	scrollbar-width: none;
-	font-family: "Work Sans", sans-serif;
+  right: 0;
+  top: 0;
+  height: 100%;
+  overflow-y: auto;
+  padding: 1rem 1rem 0 1rem;
+  width: 100%;
+  box-sizing: border-box;
+  -ms-overflow-style: none;
+  scrollbar-width: none;
+  font-family: "Work Sans", sans-serif;
 }
 .doc-toc::-webkit-scrollbar {
-	display: none;
+  display: none;
 }
 .doc-toc li {
-	line-height: 1.5;
+  line-height: 1.5;
 }
 .doc-toc a {
-	color: #2779bd;
-	color: var(--toc-text-color);
-	font-size: 0.9rem;
-	font-weight: 600;
-	overflow: hidden;
-	text-overflow: ellipsis;
-	display: block;
-	text-decoration: none;
-	border-left-width: 2px;
-	border-left-style: solid;
-	border-color: transparent;
-	padding-left: 0.4rem;
+  color: #2779bd;
+  color: var(--toc-text-color);
+  font-size: 0.9rem;
+  font-weight: 600;
+  overflow: hidden;
+  text-overflow: ellipsis;
+  display: block;
+  text-decoration: none;
+  border-left-width: 2px;
+  border-left-style: solid;
+  border-color: transparent;
+  padding-left: 0.4rem;
 }
 .doc-toc a:hover {
-	text-decoration: underline;
+  text-decoration: underline;
 }
 .doc-toc a.active {
-	border-color: #4299e1;
-	border-color: var(--toc-indicator-color);
+  border-color: #4299e1;
+  border-color: var(--toc-indicator-color);
 }
 .doc-toc li ul {
-	margin: 0.2rem 0 0.2rem;
-	font-size: 0.7rem;
-	list-style: none;
+  margin: 0.2rem 0 0.2rem;
+  font-size: 0.7rem;
+  list-style: none;
 }
 .doc-toc li ul a {
-	font-weight: 400;
-	padding-left: 0.8rem;
+  font-weight: 400;
+  padding-left: 0.8rem;
 }
 
 /* Code highlight */
-pre, code, pre code {
+pre,
+code,
+pre code {
   color: #5c6e74;
   color: var(--code-default-text-color);
   font-size: 0.948em;
@@ -538,11 +574,11 @@ pre {
   margin: 0;
 }
 .namespace {
-  opacity: .7;
+  opacity: 0.7;
 }
 .token.comment {
   color: #93a1a1;
-  color: var(--code-comment-text-color)
+  color: var(--code-comment-text-color);
 }
 .token.punctuation {
   color: #999999;
@@ -578,112 +614,112 @@ pre {
   color: var(--code-function-text-color);
 }
 
-/* Attribute tag colors */
-.attribute-tag {
-  color: red !important;
-}
-
 /* Medium screen and up */
 @media (min-width: 768px) {
-	*::-webkit-scrollbar {
-		width: 8px;
-		height: 8px;
-	}
-	*::-webkit-scrollbar-thumb {
-		border: 3px solid transparent;
-	}
-	.doc-container {
-		flex-direction: row;
-	}
-	.doc-content {
-		font-size: 0.95rem;
-		flex: 1;
-		padding: 0rem 2rem 1rem 2rem;
-	}
-	.doc-toc {
-		position: relative;
-		/* IE11 */
-		position: sticky;
-		position: -webkit-sticky;
-		align-self: flex-start;
-		top: 56px;
-		height: auto;
-		height: 100vh;
-		min-width: 200px;
-		width: auto;
-		max-width: 300px;
-	}
-	.doc-toc > ul {
-		padding-bottom: 1rem;
-	}
+  *::-webkit-scrollbar {
+    width: 8px;
+    height: 8px;
+  }
+  *::-webkit-scrollbar-thumb {
+    border: 3px solid transparent;
+  }
+  .doc-container {
+    flex-direction: row;
+  }
+  .doc-content {
+    font-size: 0.95rem;
+    flex: 1;
+    padding: 0rem 2rem 1rem 2rem;
+  }
+  .doc-toc {
+    position: relative;
+    /* IE11 */
+    position: sticky;
+    position: -webkit-sticky;
+    align-self: flex-start;
+    top: 56px;
+    height: auto;
+    height: 100vh;
+    min-width: 200px;
+    width: auto;
+    max-width: 300px;
+  }
+  .doc-toc > ul {
+    padding-bottom: 1rem;
+  }
 }
 
 @media (max-width: 1023px) {
-	.doc-nav.hidden {
-		height: auto;
-	}
-	.doc-nav.hidden #search {
-		display: none;
-	}
-	.doc-nav .search.mobile-hidden {
-		display: none;
-	}
-	.doc-nav > .heading-container > .heading > .info {
-		align-items: center;
-	}
-	.doc-nav > .heading-container > .heading > .info > .toggle-version-container {
-		flex-grow: 1;
-		padding: 0 1rem;
-		justify-content: space-between;
-	}
+  .doc-nav.hidden {
+    height: auto;
+  }
+  .doc-nav.hidden #search {
+    display: none;
+  }
+  .doc-nav .search.mobile-hidden {
+    display: none;
+  }
+  .doc-nav > .heading-container > .heading > .info {
+    align-items: center;
+  }
+  .doc-nav > .heading-container > .heading > .info > .toggle-version-container {
+    flex-grow: 1;
+    padding: 0 1rem;
+    justify-content: space-between;
+  }
 }
 
 @media (min-width: 1024px) {
-	#page {
-		padding-top: 0;
-	}
-	.doc-nav {
-		width: 300px;
-	}
-	.doc-nav #toggle-menu {
-		display: none;
-	}
-	.doc-nav > .heading-container > .heading > .info {
-		height: auto;
-		padding: 1rem 2rem 0 2rem;
-		flex-direction: column-reverse;
-		justify-content: center;
-	}
-	.doc-nav > .heading-container > .heading > .info > .toggle-version-container {
-		align-items: center;
-		margin-bottom: 0.2rem;
-		display: flex;
-		flex-direction: row-reverse;
-	}
-	.doc-nav > .heading-container > .heading > .info > .toggle-version-container > #dark-mode-toggle {
-		margin-right: auto;
-	}
-	.doc-nav .content.show,
-	.doc-nav .content.hidden {
-		display: flex;
-	}
-	.doc-content > .doc-node.const:nth-child(2) {
-		padding-bottom: 0 !important;
-	}
-	.doc-content > .doc-node.const:not(:first-child) {
-		padding-top: 0;
-	}
-	.doc-content > .doc-node.const:not(:last-child) {
-		padding-bottom: 1rem;
-	}
-	.doc-container {
-		margin-left: 300px;
-	}
-	.doc-node {
-		padding-top: 1rem !important;
-		margin-top: 0 !important;
-	}
-	.doc-toc {
-		top: 0;
-	}
+  #page {
+    padding-top: 0;
+  }
+  .doc-nav {
+    width: 300px;
+  }
+  .doc-nav #toggle-menu {
+    display: none;
+  }
+  .doc-nav > .heading-container > .heading > .info {
+    height: auto;
+    padding: 1rem 2rem 0 2rem;
+    flex-direction: column-reverse;
+    justify-content: center;
+  }
+  .doc-nav > .heading-container > .heading > .info > .toggle-version-container {
+    align-items: center;
+    margin-bottom: 0.2rem;
+    display: flex;
+    flex-direction: row-reverse;
+  }
+  .doc-nav
+    > .heading-container
+    > .heading
+    > .info
+    > .toggle-version-container
+    > #dark-mode-toggle {
+    margin-right: auto;
+  }
+  .doc-nav .content.show,
+  .doc-nav .content.hidden {
+    display: flex;
+  }
+  .doc-content > .doc-node.const:nth-child(2) {
+    padding-bottom: 0 !important;
+  }
+  .doc-content > .doc-node.const:not(:first-child) {
+    padding-top: 0;
+  }
+  .doc-content > .doc-node.const:not(:last-child) {
+    padding-bottom: 1rem;
+  }
+  .doc-container {
+    margin-left: 300px;
+  }
+  .doc-node {
+    padding-top: 1rem !important;
+    margin-top: 0 !important;
+  }
+  .doc-toc {
+    top: 0;
+  }
 }
diff --git a/vlib/v/doc/doc.v b/vlib/v/doc/doc.v
index 2fed60304b..f784a5ca16 100644
--- a/vlib/v/doc/doc.v
+++ b/vlib/v/doc/doc.v
@@ -265,9 +265,6 @@ pub fn (mut d Doc) stmt(stmt ast.Stmt, filename string) ?DocNode {
 			if stmt.is_unsafe {
 				node.tags << 'unsafe'
 			}
-			if node.tags.len > 0 {
-				eprintln(node.tags)
-			}
 			node.kind = .function
 			node.return_type = d.type_to_str(stmt.return_type)
 			if stmt.receiver.typ !in [0, 1] {