Issue 427 - Remove non-standard function and getter syntax

lib/filterClasses.js

Index: lib/filterClasses.js
===================================================================
--- a/lib/filterClasses.js
+++ b/lib/filterClasses.js
@@ -234,49 +234,58 @@ ActiveFilter.prototype =
   _disabled: false,
   _hitCount: 0,
   _lastHit: 0,
 
   /**
    * Defines whether the filter is 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("filter.disabled", this, value, oldValue);
     }
     return this._disabled;
   },
 
   /**
    * Number of hits on the filter since the last reset
    * @type Number
    */
-  get hitCount() this._hitCount,
+  get hitCount()
+  {
+    return this._hitCount;
+  },
   set hitCount(value)
   {
     if (value != this._hitCount)
     {
       let oldValue = this._hitCount;
       this._hitCount = value;
       FilterNotifier.triggerListeners("filter.hitCount", this, value, oldValue);
     }
     return this._hitCount;
   },
 
   /**
    * Last time the filter had a hit (in milliseconds since the beginning of the epoch)
    * @type Number
    */
-  get lastHit() this._lastHit,
+  get lastHit()
+  {
+    return this._lastHit;
+  },
   set lastHit(value)
   {
     if (value != this._lastHit)
     {
       let oldValue = this._lastHit;
       this._lastHit = value;
       FilterNotifier.triggerListeners("filter.lastHit", this, value, oldValue);
     }
@@ -459,17 +468,17 @@ function RegExpFilter(text, regexpSource
     this.matchCase = matchCase;
   if (thirdParty != null)
     this.thirdParty = thirdParty;
 
   if (regexpSource.length >= 2 && regexpSource[0] == "/" && regexpSource[regexpSource.length - 1] == "/")
   {
     // The filter is a regular expression - convert it immediately to catch syntax errors
     let regexp = new RegExp(regexpSource.substr(1, regexpSource.length - 2), this.matchCase ? "" : "i");
-    this.__defineGetter__("regexp", function() regexp);
+    this.__defineGetter__("regexp", () => regexp);
   }
   else
   {
     // No need to convert this filter to regular expression yet, do it on demand
     this.regexpSource = regexpSource;
   }
 }
 exports.RegExpFilter = RegExpFilter;
@@ -517,17 +526,17 @@ RegExpFilter.prototype =
       .replace(/^\\\|/, "^")       // process anchor at expression start
       .replace(/\\\|$/, "$")       // process anchor at expression end
       .replace(/^(\.\*)/, "")      // remove leading wildcards
       .replace(/(\.\*)$/, "");     // remove trailing wildcards
 
     let regexp = new RegExp(source, this.matchCase ? "" : "i");
 
     delete this.regexpSource;
-    this.__defineGetter__("regexp", function() regexp);
+    this.__defineGetter__("regexp", () => regexp);
     return this.regexp;
   },
   /**
    * Content types the filter applies to, combination of values from RegExpFilter.typeMap
    * @type Number
    */
   contentType: 0x7FFFFFFF,
   /**