--- a/src/implab/components/_LogMixin.js	Fri Jun 02 19:28:20 2017 +0300
+++ b/src/implab/components/_LogMixin.js	Tue Jun 06 19:45:32 2017 +0300
@@ -1,12 +1,12 @@
-define([ "dojo/_base/declare" ],
-
-function(declare) {
+define([
+    "implab/declare", "implab/declare/override"
+], function (declare, override) {
     var cls = declare(null, {
-        _logChannel : null,
+        _logChannel: null,
 
-        _logLevel : 1,
+        _logLevel: 1,
 
-        constructor : function(opts) {
+        constructor: function (opts) {
             if (typeof opts == "object") {
                 if ("logChannel" in opts)
                     this._logChannel = opts.logChannel;
@@ -15,31 +15,31 @@
             }
         },
 
-        getLogChannel : function() {
+        getLogChannel: function () {
             return this._logChannel;
         },
 
-        setLogChannel : function(v) {
+        setLogChannel: function (v) {
             this._logChannel = v;
         },
 
-        getLogLevel : function() {
+        getLogLevel: function () {
             return this._logLevel;
         },
 
-        setLogLevel : function(v) {
+        setLogLevel: function (v) {
             this._logLevel = v;
         },
 
-        log : function(format) {
+        log: function () {
             if (this._logChannel && this._logLevel > 2)
                 this._logChannel.log.apply(this._logChannel, arguments);
         },
-        warn : function(format) {
+        warn: function () {
             if (this._logChannel && this._logLevel > 1)
                 this._logChannel.warn.apply(this._logChannel, arguments);
         },
-        error : function(format) {
+        error: function () {
             if (this._logChannel && this._logLevel > 0)
                 this._logChannel.error.apply(this._logChannel, arguments);
         },
@@ -47,21 +47,22 @@
         /**
          * Used to by widgets
          */
-        startup : function() {
-            var me = this, parent;
+        startup: override( /** @this */ function (inherited) {
+            var me = this,
+                parent;
             if (!me.getLogChannel()) {
                 parent = me;
-                while (parent = parent.getParent()) {
+                while ((parent = parent.getParent())) {
                     if (parent.getLogChannel) {
                         me.setLogChannel(parent.getLogChannel());
-                        if(parent.getLogLevel)
+                        if (parent.getLogLevel)
                             me.setLogLevel(parent.getLogLevel());
                         break;
                     }
                 }
             }
-            this.inherited(arguments);
-        }
+            return inherited();
+        })
     });
     return cls;
 });
\ No newline at end of file