Issue 6940 - Use underscore prefixes lib/matcher.js

test/filterListener.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 46 matching lines @@
   Subscription.fromURL("~eh~").defaults = ["elemhide"];
 
   callback();
 };
 
 function checkKnownFilters(test, text, expected)
 {
   let result = {};
   for (let type of ["blacklist", "whitelist"])
   {
-    let matcher = defaultMatcher[type];
+    let matcher = defaultMatcher["_" + type];
     let filters = [];
-    for (let [keyword, set] of matcher.filterByKeyword)
+    for (let [keyword, set] of matcher._filterByKeyword)
     {
       for (let filter of set)
       {
         test.equal(matcher.findKeyword(filter), keyword,
                    "Keyword of filter " + filter.text);
         filters.push(filter.text);
       }
     }
     result[type] = filters;
   }
@@ skipping 276 matching lines @@
   checkKnownFilters(test, "add special subscription with filter2", {snippets: [filter1.text, filter2.text]});
 
   let subscription4 = Subscription.fromURL("https://easylist-downloads.adblockplus.org/abp-filters-anti-cv.txt");
   subscription4.filters = [filter3];
 
   filterStorage.addSubscription(subscription4);
   checkKnownFilters(test, "add ABP anti-circumvention subscription with filter3", {snippets: [filter1.text, filter2.text, filter3.text]});
 
   test.done();
 };