Fixed #29: Parsers: Implement parsing memoization

Fixed #77 : Parser: ShortTermMemoryParser should be called separately
Fixed #78 : Remove VariableNode usage
Fixed #79 : ConceptManager: Implement compile caching
Fixed #80 : SheerkaExecute : parsers_key is not correctly computed
Fixed #81 : ValidateConceptEvaluator : Validate concept's where and pre clauses right after the parsing
Fixed #82 : SheerkaIsAManager: isa() failed when the set as a body
Fixed #83 : ValidateConceptEvaluator : Support BNF and SYA Concepts
Fixed #84 : ExpressionParser: Implement the parser as a standard parser
Fixed #85 : Services: Give order to services
Fixed #86 : cannot manage smart_get_attr(the short, color)

src/core/sheerka/services/SheerkaMemory.py

@@ -222,12 +222,14 @@ class SheerkaMemory(BaseService):
         """
         name_to_use = name.name if isinstance(name, Concept) else name
         self.unregister_object(context, name_to_use)
+
+        # first try direct access
         obj = self.get_last_from_memory(context, name_to_use)
         if obj is not NotFound:
             return obj.obj
 
-        all_objects = self.sheerka.om.list(SheerkaMemory.OBJECTS_ENTRY)
-        all_objects_copy = []
+        all_objects = self.sheerka.om.list(SheerkaMemory.OBJECTS_ENTRY)  # not always a list of list
+        all_objects_copy = []  # to transform into list of list
         for obj in all_objects:
             if isinstance(obj, list):
                 all_objects_copy.append(obj.copy())
@@ -242,15 +244,15 @@ class SheerkaMemory(BaseService):
                 if len(obj) > 0:
                     temp.append(obj)
 
-            all_objects_copy = temp
+            all_objects_copy = temp  # list constructed with the last item of each item
             current_list = sorted(current_list, key=lambda o: o.timestamp, reverse=True)
             current_objects = [o.obj for o in current_list]
 
-            res = self.sheerka.filter_objects(context, current_objects, name)
+            res = self.sheerka.filter_objects(context, current_objects, name_to_use)
             if len(res) > 0:
                 return res[0]  # only the first, as it should have a better timestamp
 
-        return self.sheerka.new(BuiltinConcepts.NOT_FOUND, body={"#name": name})
+        return self.sheerka.new(BuiltinConcepts.NOT_FOUND, body={"#name": name_to_use})
 
     def mem(self):
         keys = sorted([k for k in self.sheerka.om.list(SheerkaMemory.OBJECTS_ENTRY)])