From c13fe33aa3e2f49bbcf45d8a1ea0e3fa7d8315ab Mon Sep 17 00:00:00 2001
From: Lieuwe Rooijakkers <lieuwerooijakkers@gmail.com>
Date: Thu, 29 Sep 2016 21:59:06 +0200
Subject: [PATCH] coffeescript: improve es6 regex performance (#7846)

---
 packages/coffeescript/plugin/compile-coffeescript.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/packages/coffeescript/plugin/compile-coffeescript.js b/packages/coffeescript/plugin/compile-coffeescript.js
index d8ce16b906..f0d8b32d73 100644
--- a/packages/coffeescript/plugin/compile-coffeescript.js
+++ b/packages/coffeescript/plugin/compile-coffeescript.js
@@ -83,7 +83,7 @@ export class CoffeeCompiler extends CachingCompiler {
 
     let sourceMap = JSON.parse(output.v3SourceMap);
 
-    if (source.match(/`|\b(?:import|export|yield)\b/)) {
+    if (/`|\b(?:import|export|yield)\b/.test(source)) {
       // If source contains backticks or features that output as ES2015+,
       // pass the coffee output through babel-compiler
       const doubleRoastedCoffee =