From 58b84f953c9e91a02ec1b07f392379a1fd399e27 Mon Sep 17 00:00:00 2001
From: Andreas Kling <kling@serenityos.org>
Date: Thu, 16 Sep 2021 00:52:10 +0200
Subject: [PATCH] LibWeb: Add fast_is<HTMLTemplateElement>()

This was showing up as hot in profiles, as the HTML parser calls it
quite a lot.
---
 Userland/Libraries/LibWeb/DOM/Node.h                 | 2 ++
 Userland/Libraries/LibWeb/HTML/HTMLTemplateElement.h | 7 +++++++
 2 files changed, 9 insertions(+)

diff --git a/Userland/Libraries/LibWeb/DOM/Node.h b/Userland/Libraries/LibWeb/DOM/Node.h
index 91ab9dee9d..acdd0955e6 100644
--- a/Userland/Libraries/LibWeb/DOM/Node.h
+++ b/Userland/Libraries/LibWeb/DOM/Node.h
@@ -77,6 +77,8 @@ public:
 
     virtual bool is_editable() const;
 
+    virtual bool is_html_template_element() const { return false; }
+
     ExceptionOr<NonnullRefPtr<Node>> pre_insert(NonnullRefPtr<Node>, RefPtr<Node>);
     ExceptionOr<NonnullRefPtr<Node>> pre_remove(NonnullRefPtr<Node>);
 
diff --git a/Userland/Libraries/LibWeb/HTML/HTMLTemplateElement.h b/Userland/Libraries/LibWeb/HTML/HTMLTemplateElement.h
index 28b38a3b72..8382a8ef90 100644
--- a/Userland/Libraries/LibWeb/HTML/HTMLTemplateElement.h
+++ b/Userland/Libraries/LibWeb/HTML/HTMLTemplateElement.h
@@ -25,9 +25,16 @@ public:
     virtual void cloned(Node& copy, bool clone_children) override;
 
 private:
+    virtual bool is_html_template_element() const final { return true; }
+
     DOM::Document& appropriate_template_contents_owner_document(DOM::Document&);
 
     RefPtr<DOM::DocumentFragment> m_content;
 };
 
 }
+
+namespace Web::DOM {
+template<>
+inline bool Node::fast_is<HTML::HTMLTemplateElement>() const { return is_html_template_element(); }
+}