Issue 7285 - Abstract caching logic

lib/elemHide.js

 /*
  * This file is part of Adblock Plus <https://adblockplus.org/>,
  * Copyright (C) 2006-present eyeo GmbH
  *
  * Adblock Plus is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 3 as
  * published by the Free Software Foundation.
  *
  * Adblock Plus is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ skipping 209 matching lines @@
   return commonStyleSheet;
 }
 
 /**
  * Returns the domain-specific style sheet that applies on a given domain.
  * @param {string} domain
  * @returns {string}
  */
 function getDomainSpecificStyleSheet(domain)
 {
-  let styleSheet = styleSheetCache.read(domain);
+  let styleSheet = styleSheetCache.get(domain);
 
   if (typeof styleSheet == "undefined")
   {
     styleSheet = createStyleSheet(getConditionalSelectors(domain, false));
-    styleSheetCache.save(domain, styleSheet);
+    styleSheetCache.set(domain, styleSheet);
   }
 
   return styleSheet;
 }
 
 ElemHideExceptions.on("added", ({domains, selector}) =>
 {
   styleSheetCache.clear();
   commonStyleSheet = null;
 
@@ skipping 248 matching lines @@
 {
   let styleSheet = "";
 
   for (let selectorGroup of splitSelectors(selectors))
     styleSheet += createRule(selectorGroup);
 
   return styleSheet;
 }
 
 exports.createStyleSheet = createStyleSheet;