From 6e3a2e2a4ed1db995e718d11d1362ce3f271b714 Mon Sep 17 00:00:00 2001
From: Rick Winfrey <rewinfrey@github.com>
Date: Thu, 16 Jun 2016 09:54:46 -0500
Subject: [PATCH] Add JavaScript language specific categories for this,
 undefined and null

---
 src/TreeSitter.hs | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/TreeSitter.hs b/src/TreeSitter.hs
index e5128c724..45e2c1586 100644
--- a/src/TreeSitter.hs
+++ b/src/TreeSitter.hs
@@ -30,6 +30,9 @@ categoriesForLanguage :: Language -> Text -> Category
 categoriesForLanguage language name = case (language, name) of
   (JavaScript, "object") -> DictionaryLiteral
   (JavaScript, "rel_op") -> BinaryOperator -- relational operator, e.g. >, <, <=, >=, ==, !=
+  (JavaScript, "this_expression") -> Identifier
+  (JavaScript, "null") -> Identifier
+  (JavaScript, "undefined") -> Identifier
 
   (Ruby, "hash") -> DictionaryLiteral
   _ -> defaultCategoryForNodeName name