Fixed #61 : SheerkaDebugManager: Add get_value()

Fixed #60 : Hash error when ReturnValue is a list of list
Fixed #59 : Implement smart_get()
Fixed #58 : SheerkaPromptCompleter: Cannot parse concept token
Fixed #57 : SheerkaPrompt: Add concept autocompletion
Fixed #56 : automatically backup command
Fixed #54 : I can record execution status
Fixed #53 : ConceptManager: modify_concept fails

src/core/builtin_concepts.py

@@ -1,6 +1,7 @@
 from core.builtin_concepts_ids import BuiltinConcepts
 from core.concept import Concept, ConceptParts
 from core.global_symbols import ErrorObj
+from core.utils import compute_hash
 
 
 class UserInputConcept(Concept):
@@ -91,12 +92,7 @@ class ReturnValueConcept(Concept):
                self.value == other.value
 
     def __hash__(self):
-        if hasattr(self.value, "__iter__") and not isinstance(self.value, str):
-            value_hash = hash(tuple(self.value))
-        else:
-            value_hash = hash(self.value)
-
-        return hash((self.who, self.status, value_hash))
+        return hash((self.who, self.status, compute_hash(self.value)))
 
 
 class UnknownPropertyConcept(Concept, ErrorObj):

src/core/concept.py

@@ -2,6 +2,7 @@ import hashlib
 from copy import deepcopy
 from dataclasses import dataclass
 from threading import RLock
+from typing import List
 
 import core.utils
 from core.builtin_concepts_ids import BuiltinDynamicAttrs
@@ -59,6 +60,7 @@ class ConceptMetadata:
     is_evaluated: bool = False  # True is the concept is evaluated by sheerka.eval_concept()
     need_validation = False  # True if the properties of the concept need to be validated
     full_serialization: bool = False  # If True, the full object will be serialized, rather than just the diff
+    all_attributes: List[str] = None  # list of instance attributes
 
 
 ALL_ATTRIBUTES = {}
@@ -157,7 +159,6 @@ class Concept:
         self._original_definition_hash = None  # concept hash before any alteration of the metadata
         self._format = None  # how to print the concept
         self._hints = {}  # extra processing information to help processing
-        self._all_attributes = None  # instance attributes
 
     def __repr__(self):
         text = f"({self._metadata.id}){self._metadata.name}"
@@ -209,7 +210,7 @@ class Concept:
         return hash(self._metadata.name)
 
     def get_all_attributes(self):
-        return self._all_attributes
+        return self._metadata.all_attributes
 
     def def_var(self, var_name, default_value=None):
         """
@@ -465,9 +466,9 @@ class Concept:
             # I am not sure how cost efficient it is to check for new attribute everytime
             # Need to find a better way
             if name not in get_concept_attrs(self):
-                if self._all_attributes is None:
-                    self._all_attributes = get_concept_attrs(self).copy()
-                self._all_attributes.append(name)
+                if self._metadata.all_attributes is None:
+                    self._metadata.all_attributes = get_concept_attrs(self).copy()
+                self._metadata.all_attributes.append(name)
 
         except AttributeError:
             print(f"Cannot set {name}")

src/core/global_symbols.py

@@ -6,6 +6,7 @@ EVENT_RULE_PRECEDENCE_MODIFIED = "evt_rp_m"
 EVENT_CONTEXT_DISPOSED = "evt_ctx_d"
 EVENT_USER_INPUT_EVALUATED = "evt_ui_e"
 EVENT_CONCEPT_CREATED = "evt_c_c"
+EVENT_CONCEPT_MODIFIED = "evt_c_m"
 EVENT_CONCEPT_DELETED = "evt_c_d"
 EVENT_CONCEPT_ID_DELETED = "evt_c_id_d"
 EVENT_RULE_CREATED = "evt_r_c"
@@ -79,3 +80,7 @@ class SyaAssociativity(Enum):
 
     def __repr__(self):
         return self.value
+
+
+SHEERKA_BACKUP_FOLDER = "SHEERKA_BACKUP_FOLDER"
+SHEERKA_BACKUP_FILE = "SHEERKA_BACKUP_FILE"

src/core/sheerka/ExecutionContext.py

@@ -497,3 +497,17 @@ class ExecutionContext:
                 return False
 
         return False
+
+    def set_state_is_modified(self):
+        root_parent = self
+        while root_parent._parent is not None:
+            root_parent = root_parent._parent
+
+        root_parent.values["is_state_modified"] = True
+
+    def is_state_modified(self):
+        root_parent = self
+        while root_parent._parent is not None:
+            root_parent = root_parent._parent
+
+        return "is_state_modified" in root_parent.values and bool(root_parent.values["is_state_modified"]) is True

src/core/sheerka/Sheerka.py

@@ -106,6 +106,7 @@ class Sheerka(Concept):
         self.save_execution_context = True
         self.enable_process_return_values = True
         self.enable_process_rules = True
+        self.enable_commands_backup = True
 
         self.methods_with_context = {"test_using_context"}  # only the names, the method is defined in sheerka_methods
         self.sheerka_methods = {
@@ -158,8 +159,6 @@ class Sheerka(Concept):
         Loads the current configuration
         Notes that when it's the first time, it also create the needed working folders
         :param root_folder: root configuration folder
-        :param save_execution_context:
-        :param enable_process_return_values:
         :return: ReturnValue(Success or Error)
         """
 
@@ -167,6 +166,7 @@ class Sheerka(Concept):
         self.enable_process_return_values = kwargs.get("enable_process_return_values",
                                                        self.enable_process_return_values)
         self.enable_process_rules = kwargs.get("enable_process_rules", self.enable_process_rules)
+        self.enable_commands_backup = kwargs.get("enable_commands_backup", self.enable_commands_backup)
 
         try:
             self.during_initialisation = True
@@ -370,7 +370,7 @@ class Sheerka(Concept):
             if self.enable_process_rules:
                 ret = self.execute_rules(execution_context, ret, RULES_EVALUATE_STEPS, RULES_EXECUTE_STEPS)
 
-            if self.om.is_dirty:
+            if self.om.is_dirty():
                 self.om.commit(execution_context)
 
             self.publish(execution_context, EVENT_USER_INPUT_EVALUATED)

src/core/sheerka/services/SheerkaAdmin.py

@@ -1,16 +1,16 @@
-import sys
+import os
 import time
 from os import path
 
 from core.builtin_concepts_ids import BuiltinConcepts, BuiltinContainers
 from core.builtin_helpers import ensure_concept_or_rule
 from core.concept import Concept
+from core.global_symbols import SHEERKA_BACKUP_FOLDER
 from core.sheerka.services.SheerkaHistoryManager import SheerkaHistoryManager
 from core.sheerka.services.SheerkaMemory import SheerkaMemory
 from core.sheerka.services.sheerka_service import BaseService
 
-CONCEPTS_FILE_LITE = "_concepts_lite.txt"
-CONCEPTS_FILE_FULL = "_concepts_full.txt"
+CONCEPTS_FILE_FULL = "full.sb"
 CONCEPTS_FILE_TO_USE = CONCEPTS_FILE_FULL
 
 
@@ -70,7 +70,7 @@ class SheerkaAdmin(BaseService):
 
         return self.sheerka.om.current_sdp()
 
-    def restore(self, concept_file=CONCEPTS_FILE_TO_USE):
+    def restore(self, backup_file=CONCEPTS_FILE_TO_USE):
         """
         Restore the state with all previous valid concept definitions
         :return:
@@ -79,7 +79,7 @@ class SheerkaAdmin(BaseService):
         def restore_from_file(file_name):
             _nb_lines, _nb_instructions, _nb_lines_in_error = 0, 0, 0
             _min_time, _max_time = None, None
-            file_path = path.join(path.dirname(sys.argv[0]), file_name)
+            file_path = path.join(backup_folder, file_name)
             if not path.exists(file_path):
                 print(f"\u001b[31mFile '{file_path}' is not found !\u001b[0m")
                 return 0, 0, 1
@@ -90,7 +90,7 @@ class SheerkaAdmin(BaseService):
                     line = line.strip()
 
                     if line.startswith("#import "):
-                        to_import = "_concepts_" + line[8:] + ".txt"
+                        to_import = line[8:] + ".sb"
                         print(f" ==== Importing {to_import} ==== ")
                         res = restore_from_file(to_import)
                         _nb_lines += res[0]
@@ -122,8 +122,12 @@ class SheerkaAdmin(BaseService):
 
             return _nb_lines, _nb_instructions, _nb_lines_in_error, _min_time, _max_time
 
-        if not concept_file.startswith("_concepts"):
-            concept_file = f"_concepts_{concept_file}.txt"
+        backup_folder = os.getenv(SHEERKA_BACKUP_FOLDER)
+        if backup_folder is None:
+            return self.sheerka.ret(self.NAME, False, self.sheerka.err(SHEERKA_BACKUP_FOLDER + " is not defined"))
+
+        if not backup_file.endswith(".sb"):
+            backup_file = backup_file + ".sb"
 
         try:
             start = time.time_ns()
@@ -132,7 +136,7 @@ class SheerkaAdmin(BaseService):
             enable_process_return_values_previous_value = self.sheerka.enable_process_return_values
             self.sheerka.enable_process_return_values = False
 
-            nb_lines, nb_instructions, nb_lines_in_error, min_time, max_time = restore_from_file(concept_file)
+            nb_lines, nb_instructions, nb_lines_in_error, min_time, max_time = restore_from_file(backup_file)
 
             self.sheerka.enable_process_return_values = enable_process_return_values_previous_value
             self.sheerka.save_execution_context = True

src/core/sheerka/services/SheerkaConceptManager.py

@@ -13,7 +13,8 @@ from core.builtin_concepts_ids import BuiltinConcepts, AllBuiltinConcepts, Built
 from core.builtin_helpers import ensure_concept, ensure_bnf
 from core.concept import Concept, DEFINITION_TYPE_DEF, DEFINITION_TYPE_BNF, freeze_concept_attrs, ConceptMetadata, \
     VARIABLE_PREFIX
-from core.global_symbols import EVENT_CONCEPT_CREATED, NotInit, NotFound, ErrorObj, EVENT_CONCEPT_DELETED, NoFirstToken
+from core.global_symbols import EVENT_CONCEPT_CREATED, NotInit, NotFound, ErrorObj, EVENT_CONCEPT_DELETED, NoFirstToken, \
+    EVENT_CONCEPT_MODIFIED
 from core.sheerka.services.sheerka_service import BaseService
 from core.tokenizer import Tokenizer, TokenKind
 from parsers.BnfNodeParser import RegExDef
@@ -118,6 +119,7 @@ class SheerkaConceptManager(BaseService):
         self.sheerka.bind_service_method(self.set_id_if_needed, True)
         self.sheerka.bind_service_method(self.set_attr, True)
         self.sheerka.bind_service_method(self.get_attr, False)
+        self.sheerka.bind_service_method(self.smart_get_attr, False)
         self.sheerka.bind_service_method(self.set_property, True, as_name="set_prop")
         self.sheerka.bind_service_method(self.get_property, False, as_name="get_prop")
         self.sheerka.bind_service_method(self.get_by_key, False, visible=False)
@@ -346,7 +348,7 @@ class SheerkaConceptManager(BaseService):
         if modify_source:
             self._update_concept(context, concept, to_add, to_remove)
 
-        # KSI 2021-02-16 publish the modification of the concept only when someone needs it
+        sheerka.publish(context, EVENT_CONCEPT_MODIFIED, {"old": concept, "new": new_concept})
         return sheerka.ret(self.NAME, True, sheerka.new(BuiltinConcepts.NEW_CONCEPT, body=new_concept))
 
     def remove_concept(self, context, concept):
@@ -390,7 +392,6 @@ class SheerkaConceptManager(BaseService):
     def set_attr(self, concept, attribute, value):
         """
         Modifies an attribute of a concept (concept.values)
-        :param context:
         :param concept:
         :param attribute:
         :param value:
@@ -416,7 +417,6 @@ class SheerkaConceptManager(BaseService):
     def get_attr(self, concept, attribute):
         """
         Returns the attribute of a concept
-        :param context:
         :param concept:
         :param attribute:
         :return:
@@ -431,6 +431,72 @@ class SheerkaConceptManager(BaseService):
             return self.sheerka.new(BuiltinConcepts.NOT_FOUND, body={"#concept": concept, "#attr": attribute})
         return value
 
+    def smart_get_attr(self, concept, attribute):
+
+        def get_obj_value(c, concept_to_look_for):
+            """
+            Return the body of the concept c if it is an instance of concept_to_look_for
+            Go deeper in the bodies until the concept_to_look_for is found
+            :param c:
+            :param concept_to_look_for:
+            :return:
+            """
+            while c.body is not NotInit:
+                if self.sheerka.isinstance(c.body, concept_to_look_for):
+                    return c.body
+                c = c.body
+
+            return None
+
+        ensure_concept()
+        if not self.sheerka.is_success(concept):
+            return concept
+
+        value = self.get_attr(concept, attribute)
+        if not self.sheerka.isinstance(value, BuiltinConcepts.NOT_FOUND):
+            return value
+
+        if not isinstance(attribute, Concept):
+            return self.sheerka.new(BuiltinConcepts.NOT_FOUND, body={"#concept": concept, "#attr": attribute})
+
+        # try to be smart
+        result = []
+
+        # first look in children
+        for k, v in concept.variables().items():
+            attr_as_concept_key, attr_concept_id = core.utils.unstr_concept(k)
+            if attr_concept_id is not None:
+                attr_as_concept = self.sheerka.fast_resolve((attr_as_concept_key, attr_concept_id), return_new=False)
+                if attr_as_concept is not None and self.sheerka.isa(attribute, attr_as_concept):
+                    if hasattr(v, "__iter__"):
+                        for _v in v:
+                            value = get_obj_value(_v, attribute)
+                            if value is not None:
+                                result.append(value)
+                    else:
+                        value = get_obj_value(v, attribute)
+                        if value is not None:
+                            result.append(value)
+
+        if len(result) > 0:
+            return result[0] if len(result) == 1 else result
+
+        # then try the ancestors
+        for k, v in concept.variables().items():
+            attr_as_concept_key, attr_concept_id = core.utils.unstr_concept(k)
+            if attr_concept_id is not None:
+                attr_as_concept = self.sheerka.fast_resolve((attr_as_concept_key, attr_concept_id), return_new=False)
+                if attr_as_concept is not None and self.sheerka.isa(attr_as_concept, attribute):
+                    if isinstance(v, list):
+                        result.extend(v)
+                    else:
+                        result.append(v)
+
+        if len(result) > 0:
+            return result[0] if len(result) == 1 else result
+
+        return self.sheerka.new(BuiltinConcepts.NOT_FOUND, body={"#concept": concept, "#attr": attribute})
+
     def get_property(self, concept, prop):
         """
         Returns the value of a concept property

src/core/sheerka/services/SheerkaDebugManager.py

@@ -322,6 +322,7 @@ class SheerkaDebugManager(BaseService):
     def initialize(self):
         self.sheerka.bind_service_method(self.set_debug, True)
         self.sheerka.bind_service_method(self.inspect, False)
+        self.sheerka.bind_service_method(self.get_value, False)
         self.sheerka.bind_service_method(self.get_debugger, False)
         self.sheerka.bind_service_method(self.reset_debug, False)
         self.sheerka.bind_service_method(self.set_debug_var, True)
@@ -802,6 +803,26 @@ class SheerkaDebugManager(BaseService):
 
         return self.get_inner_values(obj.body, **kwargs)
 
+    def get_value(self, obj):
+        """
+        Returns the underlying values of an object
+        :param obj:
+        :return:
+        """
+        if isinstance(obj, list):
+            return [self.get_value(item) for item in obj]
+
+        if isinstance(obj, set):
+            return {self.get_value(item) for item in obj}
+
+        if isinstance(obj, tuple):
+            return tuple(self.get_value(item) for item in obj)
+
+        if isinstance(obj, Concept):
+            return self.get_value(self.sheerka.objvalue(obj))
+
+        return obj
+
     @staticmethod
     def get_debug_repr(obj, **kwargs):
         if kwargs.get("as_bag", False):
@@ -897,3 +918,4 @@ class SheerkaDebugManager(BaseService):
             del res["self"]
 
         return res
+

src/core/sheerka/services/SheerkaHasAManager.py

@@ -31,9 +31,9 @@ class SheerkaHasAManager(BaseService):
             return self.sheerka.ret(
                 self.NAME,
                 False,
-                self.sheerka.new(BuiltinConcepts.PropertyAlreadyDefined,
-                                 body=concept_b,
-                                 name=BuiltinConcepts.HASA,
+                self.sheerka.new(BuiltinConcepts.PROPERTY_ALREADY_DEFINED,
+                                 property_value=concept_b,
+                                 property_name=BuiltinConcepts.HASA,
                                  concept=concept_a))
 
         merged_concepts = merge_sets(concept_a.get_prop(BuiltinConcepts.HASA), {concept_b})

src/core/sheerka/services/SheerkaHistoryManager.py

@@ -1,5 +1,6 @@
 from collections import namedtuple
 
+from core.global_symbols import NotInit
 from core.sheerka.services.sheerka_service import BaseService
 from sdp.sheerkaDataProvider import Event
 
@@ -7,14 +8,22 @@ hist = namedtuple("HistoryTest", "text status")  # tests purposes only
 
 
 class History:
-    def __init__(self, event: Event, result):
+    def __init__(self, event: Event, result, extra_info):
         self.event = event
         self.result = result
-        self._status = None
+        self.extra_info = extra_info
+        self._status = NotInit
+        self._is_state_modified = NotInit
         self._format_instructions = None
 
     def __str__(self):
-        msg = f"{self.event.get_digest()} {self.event.date.strftime('%d/%m/%Y %H:%M:%S')} : {self.event.message}"
+        if self.is_state_modified is NotInit:
+            state_modified_str = "[?]"
+        else:
+            state_modified_str = "[X]" if self.is_state_modified else "[ ]"
+        event_date = self.event.date.strftime('%d/%m/%Y %H:%M:%S')
+
+        msg = f"{self.event.get_digest()} {event_date} {state_modified_str} : {self.event.message}"
         status = self.status
         if status is not None:
             msg += f" => {status}"
@@ -40,12 +49,28 @@ class History:
 
     @property
     def status(self):
-        if self._status:
+        if self._status is not NotInit:
+            return self._status
+
+        if self.extra_info and "status" in self.extra_info:
+            self._status = self.extra_info["status"]
             return self._status
 
         self._status = self.result.get_status() if self.result else None
         return self._status
 
+    @property
+    def is_state_modified(self):
+        if self._is_state_modified is not NotInit:
+            return self._is_state_modified
+
+        if self.extra_info and "is_state_modified" in self.extra_info:
+            self._is_state_modified = self.extra_info["is_state_modified"]
+            return self._is_state_modified
+
+        self._is_state_modified = self.result.is_state_modified() if self.result else None
+        return self._is_state_modified
+
     def get_format_instructions(self):
         return self._format_instructions
 
@@ -73,4 +98,10 @@ class SheerkaHistoryManager(BaseService):
                 result = self.sheerka.om.current_sdp().load_result(event.get_digest())
             except (IOError, KeyError):
                 result = None
-            yield History(event, result)
+
+            try:
+                extra_info = self.sheerka.om.current_sdp().load_result_extra_info(event.get_digest())
+            except (IOError, KeyError):
+                extra_info = None
+
+            yield History(event, result, extra_info)

src/core/sheerka/services/SheerkaResultManager.py

@@ -1,8 +1,11 @@
 import ast
+import os
 
 from cache.Cache import Cache
 from core.builtin_concepts import BuiltinConcepts
-from core.global_symbols import EVENT_USER_INPUT_EVALUATED, EVENT_CONCEPT_CREATED, NotFound
+from core.global_symbols import EVENT_USER_INPUT_EVALUATED, EVENT_CONCEPT_CREATED, NotFound, EVENT_CONCEPT_MODIFIED, \
+    EVENT_CONCEPT_DELETED, EVENT_CONCEPT_PRECEDENCE_MODIFIED, EVENT_RULE_CREATED, EVENT_RULE_DELETED, \
+    EVENT_RULE_PRECEDENCE_MODIFIED, SHEERKA_BACKUP_FOLDER, SHEERKA_BACKUP_FILE
 from core.sheerka.services.sheerka_service import BaseService
 from core.utils import CONSOLE_COLORS_MAP as CCM
 from core.utils import as_bag
@@ -40,6 +43,14 @@ class SheerkaResultManager(BaseService):
         self.sheerka.subscribe(EVENT_USER_INPUT_EVALUATED, self.user_input_evaluated)
         self.sheerka.subscribe(EVENT_CONCEPT_CREATED, self.new_concept_created)
 
+        self.sheerka.subscribe(EVENT_CONCEPT_CREATED, self.on_global_state_is_modified)
+        self.sheerka.subscribe(EVENT_CONCEPT_MODIFIED, self.on_global_state_is_modified)
+        self.sheerka.subscribe(EVENT_CONCEPT_DELETED, self.on_global_state_is_modified)
+        self.sheerka.subscribe(EVENT_CONCEPT_PRECEDENCE_MODIFIED, self.on_global_state_is_modified)
+        self.sheerka.subscribe(EVENT_RULE_CREATED, self.on_global_state_is_modified)
+        self.sheerka.subscribe(EVENT_RULE_DELETED, self.on_global_state_is_modified)
+        self.sheerka.subscribe(EVENT_RULE_PRECEDENCE_MODIFIED, self.on_global_state_is_modified)
+
     def initialize_deferred(self, context, is_first_time):
         self.restore_values(*self.state_vars)
 
@@ -59,6 +70,11 @@ class SheerkaResultManager(BaseService):
 
     @staticmethod
     def get_predicate(**kwargs):
+        """
+        Create a filtering predicate from a arguments
+        :param kwargs:
+        :return:
+        """
         if len(kwargs) == 0:
             return None
         res = []
@@ -241,13 +257,25 @@ class SheerkaResultManager(BaseService):
         :param execution_context:
         :return:
         """
+        extra_info = {
+            "status": execution_context.get_status(),
+            "is_state_modified": execution_context.is_state_modified(),
+        }
         if self.sheerka.save_execution_context:
             try:
                 self.sheerka.om.current_sdp().save_result(execution_context)
             except Exception as ex:
                 print(f"{CCM['red']}Failed to save execution context. Reason: {ex}{CCM['reset']}")
+
+            # save extra info
+            try:
+                self.sheerka.om.current_sdp().save_result_extra_info(execution_context.event.get_digest(), extra_info)
+            except Exception as ex:
+                print(f"{CCM['red']}Failed to save execution context extra info. Reason: {ex}{CCM['reset']}")
                 pass
-                # self.log.error(f"Failed to save execution context. Reason: {ex}")
+
+        # write the command in a backup file if needed
+        self.backup_command(execution_context)
 
         self.executions_contexts_cache.put(execution_context.event.get_digest(), execution_context)
         self.last_execution = execution_context
@@ -298,11 +326,21 @@ class SheerkaResultManager(BaseService):
         return self.last_errors
 
     def new_concept_created(self, context, concept):
+        """
+        Subscriber (callback) when a new concept is created
+        :param context:
+        :param concept:
+        :return:
+        """
         self.last_created_concept = concept
         self.last_created_concept_id = concept.id
 
         self.sheerka.record_var(context, self.NAME, "last_created_concept_id", concept.id)
 
+    @staticmethod
+    def on_global_state_is_modified(context, *argv, **kwargs):
+        context.set_state_is_modified()
+
     def get_last_created_concept(self, context):
         if self.last_created_concept:
             return self.last_created_concept
@@ -333,3 +371,24 @@ class SheerkaResultManager(BaseService):
             consumed = 0
 
         return None
+
+    def backup_command(self, execution_context):
+        if (self.sheerka.during_restore or
+            not execution_context.is_state_modified() or
+            not self.sheerka.enable_commands_backup):
+            return
+
+        folder = os.getenv(SHEERKA_BACKUP_FOLDER)
+        if folder is None:
+            print(f"{CCM['red']}Cannot backup command. Backup folder (env SHEERKA_BACKUP_FOLDER) is not defined.{CCM['reset']}")
+            return
+
+        file = os.getenv(SHEERKA_BACKUP_FILE)
+        if file is None:
+            print(f"{CCM['red']}Cannot backup command. Backup file (env SHEERKA_BACKUP_FILE) is not defined.{CCM['reset']}")
+            return
+
+        full_path = os.path.join(folder, file)
+        with open(full_path, "a") as f:
+            f.write(f"{execution_context.event.message}\n")
+

src/core/sheerka/services/SheerkaVariableManager.py

@@ -42,8 +42,14 @@ class SheerkaVariableManager(BaseService):
 
     def __init__(self, sheerka):
         super().__init__(sheerka, order=3)
+
+        # Bound variables:
+        # automatically set services (including Sheerka) attributes at startup or at ontology creation / deletion
         self.bound_variables = {
-            self.sheerka.name: {"enable_process_return_values", "save_execution_context", "enable_process_rules"}
+            self.sheerka.name: {"enable_process_return_values",
+                                "save_execution_context",
+                                "enable_process_rules",
+                                "enable_commands_backup"}
         }
 
     def initialize(self):
@@ -88,6 +94,7 @@ class SheerkaVariableManager(BaseService):
         if who in self.bound_variables and key in self.bound_variables[who]:
             service = self.sheerka if who == self.sheerka.name else self.sheerka.services[who]
             setattr(service, key, value)
+            print(f"{service=} is set")
 
     def load_var(self, who, key):
         variable = self.sheerka.om.get(self.VARIABLES_ENTRY, who + "|" + key)

src/core/utils.py

@@ -777,6 +777,14 @@ def escape_str(x):
     return x
 
 
+def new_array(size):
+    res = []
+    for _ in range(size):
+        res.append(0)
+
+    return res
+
+
 class NextIdManager:
     """
     solely return the next integer
@@ -788,3 +796,16 @@ class NextIdManager:
     def get_next_id(self):
         self.id += 1
         return self.id
+
+
+def compute_hash(obj):
+    if isinstance(obj, list):
+        return hash(tuple([compute_hash(o) for o in obj]))
+
+    if isinstance(obj, set):
+        return hash(tuple([compute_hash(o) for o in sorted(list(obj))]))
+
+    if isinstance(obj, dict):
+        return hash(repr(obj))
+
+    return hash(obj)