Create styleRule once

1 files changed, 5 insertions, 2 deletions

diff --git a/lib/style-reader.js b/lib/style-reader.js
index b28579c..b76478f 100644
--- a/lib/style-reader.js
+++ b/lib/style-reader.js
@@ -11,10 +11,10 @@ exports.readStyle = readStyle;
 
 
 function readStyle(string) {
-    return parseString(styleRule(), string);
+    return parseString(styleRule, string);
 }
 
-function styleRule() {
+function createStyleRule() {
     return lop.rules.sequence(
         lop.rules.sequence.capture(documentMatcherRule()),
         lop.rules.tokenOfType("whitespace"),
@@ -217,3 +217,6 @@ function tokenise(string) {
     ]);
     return tokeniser.tokenise(string);
 }
+
+
+var styleRule = createStyleRule();