Display inheritance relationships for host classes

lib/puppetx/yardoc/yard/code_objects/host_class_object.rb

@@ -5,6 +5,10 @@ require_relative '../../../yardoc'
 
 module Puppetx::Yardoc::YARD::CodeObjects
   class HostClassObject < YARD::CodeObjects::NamespaceObject
+    # The {HostClassObject} that this class inherits from, if any.
+    # @return [HostClassObject, Proxy, nil]
+    attr_accessor :parent_class
+
     # The `YARD::Codeobjects::Base` class pulls a bunch of shenanigans to
     # insert proxy namespaces. Unfortunately, said shenanigans pick up on the
     # `::` in Puppet names and start to mangle things based on rules for the

lib/puppetx/yardoc/yard/handlers/host_class_handler.rb

@@ -5,7 +5,15 @@ module Puppetx::Yardoc::YARD::Handlers
     handles HostClassDefinition
 
     process do
-      register HostClassObject.new(:root, statement.pops_obj.name)
+      obj = HostClassObject.new(:root, statement.pops_obj.name)
+
+      statement.pops_obj.tap do |o|
+        if o.parent_class
+          obj.parent_class = P(:root, o.parent_class)
+        end
+      end
+
+      register obj
     end
   end
 end

lib/puppetx/yardoc/yard/templates/default/hostclass/html/box_info.erb

@@ -0,0 +1,17 @@
+<% n = 1 %>
+<dl class="box">
+  <% if object.parent_class %>
+    <dt class="r<%=n%>">Inherits:</dt>
+    <dd class="r<%=n%>">
+      <span class="inheritName"><%= linkify object.parent_class %></span>
+      <%# TODO: Add inheritance tree. %>
+    </dd>
+    <% n = 2 %>
+  <% end %>
+  <% unless object.root? %>
+    <dt class="r<%=n%> last">Defined in:</dt>
+    <dd class="r<%=n%> last"><%= erb(:defines) %></dd>
+  <% end %>
+</dl>
+<div class="clear"></div>
+