Issue 4795 - Use modern JavaScript syntax

lib/compat.js

 /*
  * This file is part of Adblock Plus <https://adblockplus.org/>,
  * Copyright (C) 2006-2016 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
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
  * along with Adblock Plus.  If not, see <http://www.gnu.org/licenses/>.
  */
 
+"use strict";
+
 //
 // Module framework stuff
 //
 
 function require(module)
 {
   if (!(module in require.scopes))
   {
     let scope = {exports: {}};
     require.scopes[module] = require.modules[module](scope, scope.exports);
   }
   return require.scopes[module];
 }
 require.modules = Object.create(null);
 require.scopes = Object.create(null);
 
 function importAll(module, globalObj)
 {
   let exports = require(module);
   for (let key in exports)
     globalObj[key] = exports[key];
 }
 
-onShutdown = {
+let onShutdown = {
   done: false,
-  add: () => {},
-  remove: () => {}
+  add() {},
+  remove() {}
 };
 
 //
 // XPCOM emulation
 //
 
 let Components =
 {
   interfaces:
   {
     nsIFile: {DIRECTORY_TYPE: 0},
-    nsIFileURL: () => {},
-    nsIHttpChannel: () => {},
+    nsIFileURL() {},
+    nsIHttpChannel() {},
     nsITimer: {TYPE_REPEATING_SLACK: 0},
     nsIInterfaceRequestor: null,
     nsIChannelEventSink: null
   },
   classes:
   {
     "@mozilla.org/timer;1":
     {
-      createInstance: () => new FakeTimer()
+      createInstance() { return new FakeTimer(); }
     },
     "@mozilla.org/xmlextras/xmlhttprequest;1":
     {
-      createInstance: () => new XMLHttpRequest()
+      createInstance() { return new XMLHttpRequest(); }
     }
   },
   results: {},
   utils: {
-    import: () =>
+    import()
     {
     },
-    reportError: e =>
+    reportError(e)
     {
       console.error(e);
       console.trace();
     }
   },
   manager: null,
-  ID: () => null
+  ID() { return null; }
 };
 const Cc = Components.classes;
 const Ci = Components.interfaces;
 const Cr = Components.results;
 const Cu = Components.utils;
 
 let XPCOMUtils =
 {
-  generateQI: () => {}
+  generateQI() {}
 };
 
 //
 // Fake nsIFile implementation for our I/O
 //
 
 function FakeFile(path)
 {
   this.path = path;
 }
 FakeFile.prototype =
 {
   get leafName()
   {
     return this.path;
   },
   set leafName(value)
   {
     this.path = value;
   },
-  append: function(path)
+  append(path)
   {
     this.path += path;
   },
-  clone: function()
+  clone()
   {
     return new FakeFile(this.path);
   },
   get parent()
   {
-    return {create: () => {}};
-  },
-  normalize: () => {}
+    return {create() {}};
+  },
+  normalize() {}
 };
 
 //
 // Services.jsm module emulation
 //
 
 let Services =
 {
   obs: {
-    addObserver: () => {},
-    removeObserver: () => {}
+    addObserver() {},
+    removeObserver() {}
   },
   vc: {
-    compare: (v1, v2) =>
+    compare(v1, v2)
     {
       function parsePart(s)
       {
         if (!s)
           return parsePart("0");
 
         let part = {
           numA: 0,
           strB: "",
           numC: 0,
@@ skipping 64 matching lines @@
   PERMS_DIRECTORY: 0
 };
 
 function FakeTimer()
 {
 }
 FakeTimer.prototype =
 {
   delay: 0,
   callback: null,
-  initWithCallback: function(callback, delay)
+  initWithCallback(callback, delay)
   {
     this.callback = callback;
     this.delay = delay;
     this.scheduleTimeout();
   },
-  scheduleTimeout: function()
+  scheduleTimeout()
   {
     window.setTimeout(() =>
     {
       try
       {
         this.callback();
       }
       catch(e)
       {
         Cu.reportError(e);
       }
       this.scheduleTimeout();
     }, this.delay);
   }
 };
 
 //
 // Add a channel property to XMLHttpRequest, Synchronizer needs it
 //
 
 XMLHttpRequest.prototype.channel =
 {
   status: -1,
   notificationCallbacks: {},
   loadFlags: 0,
   INHIBIT_CACHING: 0,
   VALIDATE_ALWAYS: 0,
-  QueryInterface: function()
+  QueryInterface()
   {
     return this;
   }
 };