--- a/paraspace/dex_deptracker.py	Mon Jun 20 22:19:37 2011 +0800
+++ b/paraspace/dex_deptracker.py	Tue Jun 21 18:36:45 2011 +0800
@@ -265,7 +265,7 @@
     return all_dep_decls
 
 
-class _marker(dexfile.relocatable):
+class _marker(dexfile.null_relocatable):
     back_type = None
     pass
 
@@ -696,17 +696,30 @@
 
 
 def update_offset(dexroot, all_dep_decls):
-    depon_dep_map = _build_sub_depon_dep(all_dep_decls)
-
-    def skip_dep(obj, parents, name_path):
-        if name_path in all_dep_decls:
-            return True
-        return False
+    from dexfile import man_off
+    
+    moff = man_off(0)
+    queue = [dexroot]
     
-    for obj, parents, name_path in \
-            _travel_dex_relocatable(dexroot, skip_func=skip_dep):
-        if name_path not in depon_dep_map:
+    while queue:
+        obj = queue.pop()
+        if isinstance(obj, _marker):
+            obj.set_marker(moff())
+            pass
+        if isinstance(obj, dexfile.relocatable):
+            moff(obj.sizeof())
+            pass
+        
+        if isinstance(obj, dexfile.ref):
             continue
+        if not isinstance(obj, dexfile.relocatable):
+            continue
+        
+        children = list(obj.children())
+        attrs = [_dex_tree_get_child(obj, child)
+                 for child in children]
+        attrs.reverse()
+        queue = queue + attrs
         pass
     pass