获取某个结点的所有层

感谢网友Jache在我的blog上提出一个问题：
AX has 16 layers, we have over-layering problems just like the code in syp will cover sys. I want to wrote a tool to solve this problem. But now I don't know how can I get all the layers in one method. Such as method1() has sys syp dis layers. But how can I know it with codes?
我的理解Jache应该是想获取某个方法在多少层上曾经修改过，并且要获取某个方法在某一层的代码，在这里记录一下：
1.获取某个方法在哪些层上修改过
这里以类LedgerBalanceSheetDimPrint的方法buildRowsCalcList为例，该方法在SYS,SYP,GLS,GLP层上修改过．

static void GetLayersOfOneMethod(Args _args)
{
    #AOT
    TreeNode        treeNode = TreeNode::findNode(#ClassesPath+"\\LedgerBalanceSheetDimPrint\\buildRowsCalcList");
    int             layers = treeNode.applObjectLayerMask();
    UtilEntryLevel  level;
    UtilEntryLevel  currentLevel;
    int             i;
    ;
    for(i=0;i<enumcnt(UtilEntryLevel);i++)
    {
        if (layers & (1 << i))
        {
            currentLevel = i;
            print currentLevel;
        }
 
    }
    pause;
}

2.获取某一层的源代码

static void GetSomeLayerSourceOfOneMethod(Args _args)
{
    #AOT
    TreeNode        treeNode = TreeNode::findNode(#ClassesPath+"\\LedgerBalanceSheetDimPrint\\buildRowsCalcList");
    ;
    treeNode        =   treeNode.getNodeInLayer(UtilEntryLevel::glp);
    info(treeNode.AOTgetSource());
}