From 9d9ef31f7b360dee9844af8386610c3a8944fdff Mon Sep 17 00:00:00 2001
From: Christian Paul <info@jaller.de>
Date: Fri, 24 Nov 2017 01:42:09 -0800
Subject: [PATCH] Make Styler strict

---
 src/Styler.js | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/src/Styler.js b/src/Styler.js
index fe711fc..695077c 100644
--- a/src/Styler.js
+++ b/src/Styler.js
@@ -8,11 +8,11 @@
   Compiles layer filter instructions into a chain of true/false returning
   anonymous functions to improve rendering speed compared to realtime parsing.
 */
-var Styler;
+'use strict';
 
 const fs = require('fs');
 
-module.exports = class Styler {
+class Styler {
   constructor(file) {
     this.styleById = {};
     this.styleByLayer = {};
@@ -132,3 +132,5 @@ module.exports = class Styler {
     }
   }
 }
+
+module.exports = Styler;