[lib] Add few todos.. sorry

library/cadbiom/models/clause_constraints/mcl/CLUnfolder.py

@@ -74,6 +74,8 @@ About shifting clauses and variables:
     to the right or to the left depending on whether their values are positive
     or negative.
 
+    *constraints attributes are shifted at every step and submitted to the solver.
+
 ---
 
 init_with_query(query):
@@ -1291,12 +1293,15 @@ class CLUnfolder(object):
         self.__aux_list = []                      # idem
 
         # Init properties to generate all variable num codes
+        ## Similar code with init_backward_unfolding, move this into a function
+        ## => could help to recall init state of a query
         self.__init_initial_constraint_0()
         self.__init_final_constraint_0()
         self.__init_invariant_constraint_0()
         self.__init_variant_constraints_0()
 
         # Now shifting is possible
+        ## TODO: check shift_direction too (not urgent, backward is not usable)
         if old_shift_step != self.__shift_step \
         or self.__include_aux_clauses_changed \
         or not self.__dynamic_constraints:
@@ -1307,6 +1312,7 @@ class CLUnfolder(object):
             self.__forward_init_dynamic()
             self.__precomputed_dynamic_constraints = []
         else:
+            # Optimization for __dynamic_constraints
             # Main settings of the unfolder haven't changed and the system
             # was initialized before.
             LOGGER.info("init_forward_unfolding:: Reload dynamic constraints")
@@ -1346,6 +1352,12 @@ class CLUnfolder(object):
         .. note:: Called by:
             - __constraints_satisfied()
             - __msolve_constraints()
+
+        .. todo::
+            Avoid to reload the solver everytime just for a few changed variables.
+            Ex: __initial_constraints is changed only because of
+            __initial_property and __dimacs_initial changes.
+            Ex: __dynamic_constraints is huge and stays the same.
         """
         # New API via C++ module
         solv.add_clauses(self.__final_constraints)