package main
import ("log")
type LsWalker struct {
TotalSize uint64
}
func (lw* LsWalker) onDir(dn *DirNode) {
log.Println(dn.String())
func (lw* LsWalker) onFile(fn *FileNode) {
lw.TotalSize += uint64(fn.Ent.Size)
log.Println(fn.String())