rem: if (aItem.id == null) { 
add: if (aItem.id == null) 
context:     addItem: function (aItem, aListener) {        if (aItem.id == null) {            aItem.id = "uuid:" + (new Date()).getTime();        }        if (this.mItems[aItem.id] != null) {            // is this an error?            if (aListener)                aListener.onOperationComplete (this,                                               Components.results.NS_ERROR_FAILURE,                                               aListener.ADD,                                               aItem.id,                                               "ID already eists for addItem");            return;        }        this.mItems[aItem.id] = aItem;        // notify observers        this.observeAddItem(aItem);        // notify the listener        if (aListener)            aListener.onOperationComplete (this,                                           Components.results.NS_OK,                                           aListener.ADD,                                           aItem.id,                                           aItem);    },
meta: 5872	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/5872/660aba3f98e7eb3ec6807fc35b01cd4227a517bc/calMemoryCalendar.js/buggy/calendar/providers/memory/calMemoryCalendar.js