From e3316aa8111f006fc131acbfc1ba8f8b97040980 Mon Sep 17 00:00:00 2001
From: eight <eight04@gmail.com>
Date: Sat, 1 Sep 2018 21:29:31 +0800
Subject: [PATCH] Fix: use cacheFirstCall

---
 edit/linter-help-dialog.js | 19 +++++++------------
 1 file changed, 7 insertions(+), 12 deletions(-)

diff --git a/edit/linter-help-dialog.js b/edit/linter-help-dialog.js
index 98c11903..ea9d99f9 100644
--- a/edit/linter-help-dialog.js
+++ b/edit/linter-help-dialog.js
@@ -1,9 +1,14 @@
-/* global showHelp editorWorker */
+/* global showHelp editorWorker cacheFirstCall */
 'use strict';
 
 function createLinterHelpDialog(getIssues) {
   let csslintRules;
-  let preparing;
+  const prepareCsslintRules = cacheFirstCall(() =>
+    editorWorker.getCsslintRules()
+      .then(rules => {
+        csslintRules = rules;
+      })
+  );
   return {show};
 
   function show() {
@@ -43,14 +48,4 @@ function createLinterHelpDialog(getIssues) {
         )
       );
   }
-
-  function prepareCsslintRules() {
-    if (!preparing) {
-      preparing = editorWorker.getCsslintRules()
-        .then(rules => {
-          csslintRules = rules;
-        });
-    }
-    return preparing;
-  }
 }