From 190a8563abb0ce87de9e131606e5d51bc2ac84c5 Mon Sep 17 00:00:00 2001
From: Vitaly Puzrin <vitaly@rcdesign.ru>
Date: Fri, 17 Oct 2014 01:19:13 +0400
Subject: [PATCH] Perf: optimized html block names lookup

---
 lib/common/html_blocks.js    | 8 ++++++--
 lib/rules_block/htmlblock.js | 2 +-
 2 files changed, 7 insertions(+), 3 deletions(-)

diff --git a/lib/common/html_blocks.js b/lib/common/html_blocks.js
index 97fb1e6..91f5f3b 100644
--- a/lib/common/html_blocks.js
+++ b/lib/common/html_blocks.js
@@ -3,8 +3,9 @@
 
 'use strict';
 
+var html_blocks = {};
 
-module.exports = [
+[
   'article',
   'aside',
   'button',
@@ -55,4 +56,7 @@ module.exports = [
   'thead',
   'ul',
   'video'
-];
+].forEach(function (name) { html_blocks[name] = true; });
+
+
+module.exports = html_blocks;
diff --git a/lib/rules_block/htmlblock.js b/lib/rules_block/htmlblock.js
index 9d4ef96..f067d71 100644
--- a/lib/rules_block/htmlblock.js
+++ b/lib/rules_block/htmlblock.js
@@ -48,7 +48,7 @@ module.exports = function htmlblock(state, startLine, endLine, silent) {
       if (!match) { return false; }
     }
     // Make sure tag name is valid
-    if (block_names.indexOf(match[1].toLowerCase()) < 0) { return false; }
+    if (block_names[match[1].toLowerCase()] !== true) { return false; }
     if (silent) { return true; }
 
   } else {