/*                                    
           +-------+              
           | ALoDE |<------------------+
           +-------+                   |
           +-------+                   |
              / \                      |
              ---                      |
               |                       |
      -----------------                |
      |               |                |
  +--------+    +-----------+          |
  | MtLoDE |    | ConsLoDE  |          |
  +--------+    +-----------+          |
  +--------+    | ADE fst   |---+      |
                | ALoDE rst |---+------+  
                +-----------+   |      |
                                |      |
                  +-------------+      |
                  |                    |
                  v                    |
               +-----+                 |
               | ADE |                 |
               +-----+                 |
               +-----+                 |
                 / \                   |
                 ---                   |
                  |                    |
         --------------------          |
         |                  |          |
  +-------------+    +-------------+   |
  | File        |    | Directory   |   |
  +-------------+    +-------------+   |
  | String name |    | String name |   |
  | int size    |    | ALoDE lode  |---+  
  +-------------+    +-------------+ 
*/