<!--
  Copyright 2020 The Go Authors. All rights reserved.
  Use of this source code is governed by a BSD-style
  license that can be found in the LICENSE file.
-->
<nav class="DocNav js-sideNav">
  <ul role="tree" aria-label="Outline">
    {{if or .Doc (index .Examples.Map "")}}
      <li class="DocNav-overview" role="none">
        <a href="#pkg-overview" class="js-docNav" role="treeitem" aria-level="1" tabindex="0">Overview</a>
      </li>
    {{end}}
    {{- if or .Consts .Vars .Funcs .Types -}}
      <li class="DocNav-index" role="none">
        <a href="#pkg-index" class="DocNav-groupLabel{{if not .Examples.List}} DocNav-groupLabel--empty{{end}} js-docNav"
            role="treeitem" aria-expanded="false" aria-level="1" aria-owns="nav-group-index" tabindex="-1">
          Index
        </a>
        {{if .Examples.List}}
          <ul role="group" id="nav-group-index">
            <li role="none">
              <a href="#pkg-examples" role="treeitem" aria-level="2" tabindex="-1">Examples</a>
            </li>
          </ul>
        {{end}}
      </li>
      <li class="DocNav-constants" role="none">
        <a href="#pkg-constants" class="js-docNav" role="treeitem" aria-level="1" tabindex="-1">Constants</a>
      </li>
      <li class="DocNav-variables" role="none">
        <a href="#pkg-variables" class="js-docNav" role="treeitem" aria-level="1" tabindex="-1">Variables</a>
      </li>
      <li class="DocNav-functions" role="none">
        <a href="#pkg-functions" class="DocNav-groupLabel{{if eq (len .Funcs) 0}} DocNav-groupLabel--empty{{end}} js-docNav"
            role="treeitem" aria-expanded="false" aria-level="1" aria-owns="nav-group-functions" tabindex="-1">
          Functions
        </a>
        <ul role="group" id="nav-group-functions">
          {{range .Funcs}}
            <li role="none">
              <a href="#{{.Name}}" title="{{render_short_synopsis .Decl}}" role="treeitem" aria-level="2" tabindex="-1">{{render_short_synopsis .Decl}}</a>
            </li>
          {{end}}
        </ul>
      </li>
      <li class="DocNav-types" role="none">
        <a href="#pkg-types" class="DocNav-groupLabel{{if eq (len .Types) 0}} DocNav-groupLabel--empty{{end}} js-docNav"
            role="treeitem" aria-expanded="false" aria-level="1" aria-owns="nav-group-types" tabindex="-1">
          Types
        </a>
        <ul role="group" id="nav-group-types">
          {{range .Types}}
            {{$tname := .Name}}
            <li role="none">
              {{if or .Funcs .Methods}}
                {{$navgroupname := (printf "nav.group.%s" $tname)}}
                {{$navgroupid := (safe_id $navgroupname)}}
                <a class="DocNav-groupLabel js-docNavType" href="#{{$tname}}" role="treeitem" aria-expanded="false" aria-level="2" data-aria-owns="{{$navgroupid}}" tabindex="-1">type {{$tname}}</a>
                <ul role="group" id="{{$navgroupid}}">
                  {{range .Funcs}}
                    <li role="none">
                      <a href="#{{.Name}}" title="{{render_short_synopsis .Decl}}" role="treeitem" aria-level="3" tabindex="-1">{{render_short_synopsis .Decl}}</a>
                    </li>
                  {{end}}
                  {{range .Methods}}
                    <li role="none">
                      <a href="#{{$tname}}.{{.Name}}" title="{{render_short_synopsis .Decl}}" role="treeitem" aria-level="3" tabindex="-1">{{render_short_synopsis .Decl}}</a>
                    </li>
                  {{end}}
                </ul>
              {{else}}
                <a href="#{{$tname}}" role="treeitem" aria-level="2" tabindex="-1">type {{$tname}}</a>
              {{end}} {{/* if or .Funcs .Methods */}}
            </li>
          {{end}} {{/* range .Types */}}
        </ul>
      </li>
    {{end}}
    {{if .Notes}}
      <li class="DocNav-notes" role="none">
        <a href="#pkg-notes" class="DocNav-groupLabel{{if eq (len .Notes) 0}} DocNav-groupLabel--empty{{end}} js-docNav"
            role="treeitem" aria-expanded="false" aria-level="1" aria-owns="nav-group-notes" tabindex="-1">Notes</a>
        <ul role="group" id="nav-group-notes">
          {{range $marker, $item := .Notes}}
            <li role="none">
              <a href="#pkg-note-{{$marker}}" role="treeitem" aria-level="2" tabindex="-1">{{(index $.NoteHeaders $marker).Label}}s</a>
            </li>
          {{end}}
        </ul>
      </li>
    {{end}}
  </ul>
</nav>