Issue 7016 - Convert serialization functions into generators

test/filterClasses.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 178 matching lines @@
   addDefaults(expected);
 
   let filter = Filter.fromText(text);
   if (postInit)
     postInit(filter);
   let result = serializeFilter(filter);
   test.equal(result.sort().join("\n"), expected.sort().join("\n"), text);
 
   // Test round-trip
   let filter2;
-  let buffer = [];
-  filter.serialize(buffer);
+  let buffer = [...filter.serialize()];
   if (buffer.length)
   {
     let map = Object.create(null);
     for (let line of buffer.slice(1))
     {
       if (/(.*?)=(.*)/.test(line))
         map[RegExp.$1] = RegExp.$2;
     }
     filter2 = Filter.fromObject(map);
   }
@@ skipping 418 matching lines @@
 
   test.notEqual(filter2.domains, filter5.domains);
 
   // Check twice for element hiding filters to make sure the internal cached
   // values are also not equal.
   test.notEqual(filter4.domains, filter6.domains);
   test.notEqual(filter4.domains, filter6.domains);
 
   test.done();
 };