Issue 427 - Remove non-standard function and getter syntax

lib/subscriptionClasses.js

Index: lib/subscriptionClasses.js
===================================================================
--- a/lib/subscriptionClasses.js
+++ b/lib/subscriptionClasses.js
@@ -63,49 +63,58 @@ Subscription.prototype =
   _title: null,
   _fixedTitle: false,
   _disabled: false,
 
   /**
    * Title of the filter subscription
    * @type String
    */
-  get title() this._title,
+  get title()
+  {
+    return this._title;
+  },
   set title(value)
   {
     if (value != this._title)
     {
       let oldValue = this._title;
       this._title = value;
       FilterNotifier.triggerListeners("subscription.title", this, value, oldValue);
     }
     return this._title;
   },
 
   /**
    * Determines whether the title should be editable
    * @type Boolean
    */
-  get fixedTitle() this._fixedTitle,
+  get fixedTitle()
+  {
+    return this._fixedTitle;
+  },
   set fixedTitle(value)
   {
     if (value != this._fixedTitle)
     {
       let oldValue = this._fixedTitle;
       this._fixedTitle = value;
       FilterNotifier.triggerListeners("subscription.fixedTitle", this, value, oldValue);
     }
     return this._fixedTitle;
   },
 
   /**
    * Defines whether the filters in the subscription should be disabled
    * @type Boolean
    */
-  get disabled() this._disabled,
+  get disabled()
+  {
+    return this._disabled;
+  },
   set disabled(value)
   {
     if (value != this._disabled)
     {
       let oldValue = this._disabled;
       this._disabled = value;
       FilterNotifier.triggerListeners("subscription.disabled", this, value, oldValue);
     }
@@ -288,17 +297,17 @@ SpecialSubscription.prototype =
 
   /**
    * See Subscription.serialize()
    */
   serialize: function(buffer)
   {
     Subscription.prototype.serialize.call(this, buffer);
     if (this.defaults && this.defaults.length)
-      buffer.push("defaults=" + this.defaults.filter(function(type) type in SpecialSubscription.defaultsMap).join(" "));
+      buffer.push("defaults=" + this.defaults.filter((type) => type in SpecialSubscription.defaultsMap).join(" "));
     if (this._lastDownload)
       buffer.push("lastDownload=" + this._lastDownload);
   }
 };
 
 SpecialSubscription.defaultsMap = {
   __proto__: null,
   "whitelist": WhitelistFilter,
@@ -361,33 +370,39 @@ RegularSubscription.prototype =
 
   _homepage: null,
   _lastDownload: 0,
 
   /**
    * Filter subscription homepage if known
    * @type String
    */
-  get homepage() this._homepage,
+  get homepage()
+  {
+    return this._homepage;
+  },
   set homepage(value)
   {
     if (value != this._homepage)
     {
       let oldValue = this._homepage;
       this._homepage = value;
       FilterNotifier.triggerListeners("subscription.homepage", this, value, oldValue);
     }
     return this._homepage;
   },
 
   /**
    * Time of the last subscription download (in seconds since the beginning of the epoch)
    * @type Number
    */
-  get lastDownload() this._lastDownload,
+  get lastDownload()
+  {
+    return this._lastDownload;
+  },
   set lastDownload(value)
   {
     if (value != this._lastDownload)
     {
       let oldValue = this._lastDownload;
       this._lastDownload = value;
       FilterNotifier.triggerListeners("subscription.lastDownload", this, value, oldValue);
     }
@@ -453,17 +468,20 @@ DownloadableSubscription.prototype =
   _downloadStatus: null,
   _lastCheck: 0,
   _errors: 0,
 
   /**
    * Status of the last download (ID of a string)
    * @type String
    */
-  get downloadStatus() this._downloadStatus,
+  get downloadStatus()
+  {
+    return this._downloadStatus;
+  },
   set downloadStatus(value)
   {
     let oldValue = this._downloadStatus;
     this._downloadStatus = value;
     FilterNotifier.triggerListeners("subscription.downloadStatus", this, value, oldValue);
     return this._downloadStatus;
   },
 
@@ -474,17 +492,20 @@ DownloadableSubscription.prototype =
   lastSuccess: 0,
 
   /**
    * Time when the subscription was considered for an update last time (in seconds
    * since the beginning of the epoch). This will be used to increase softExpiration
    * if the user doesn't use Adblock Plus for some time.
    * @type Number
    */
-  get lastCheck() this._lastCheck,
+  get lastCheck()
+  {
+    return this._lastCheck;
+  },
   set lastCheck(value)
   {
     if (value != this._lastCheck)
     {
       let oldValue = this._lastCheck;
       this._lastCheck = value;
       FilterNotifier.triggerListeners("subscription.lastCheck", this, value, oldValue);
     }
@@ -502,17 +523,20 @@ DownloadableSubscription.prototype =
    * @type Number
    */
   softExpiration: 0,
 
   /**
    * Number of download failures since last success
    * @type Number
    */
-  get errors() this._errors,
+  get errors()
+  {
+    return this._errors;
+  },
   set errors(value)
   {
     if (value != this._errors)
     {
       let oldValue = this._errors;
       this._errors = value;
       FilterNotifier.triggerListeners("subscription.errors", this, value, oldValue);
     }