Пример #1
0
        private void SaveChangeList()
        {
            using (ChangeList change = new ChangeList(true))
            {
                change.FromDate = FromDate;
                change.Todate   = ToDate;

                if (ChangeListID == 0)
                {
                    ChangeListID = change.Add();
                }

                change.Clear(ChangeListID);

                foreach (ChangeListToolstriptItem RmenuItem in contextMenuStrip1.Items)
                {
                    if (RmenuItem.asapuChangeListItem != null)
                    {
                        foreach (ChangeListItemBhikku bhikku in RmenuItem.asapuChangeListItem.bhikkuList)
                        {
                            change.AddBhikkuAsapuwa(ChangeListID, RmenuItem.asapuChangeListItem.asapuwaID, bhikku.bInfo.ID, bhikku.bInfo.Post, bhikku.bInfo.ChangeType);
                        }
                    }
                }
            }
        }
Пример #2
0
 public void WriteCell(int x, int y, int val)
 {
     if (x >= 0 && x < Width && y >= 0 && y < Height)
     {
         ChangeList.Add(new Change(x, y, val));
     }
 }
Пример #3
0
        /// <summary>
        ///     Compares the specified results.
        /// </summary>
        /// <param name="results">The results.</param>
        /// <param name="originalElement">The original element.</param>
        /// <param name="finalElement">The final element.</param>
        private void Compare(ChangeList results, ObjectGraphCapture.ValueElement originalElement, ObjectGraphCapture.ValueElement finalElement)
        {
            bool areEqual;

            if ((originalElement.Value == null) ^ (finalElement.Value == null))
            {
                areEqual = false;
            }
            else if ((originalElement.Value == null) && (finalElement.Value == null))
            {
                areEqual = true;
            }
            else
            {
// ReSharper disable once PossibleNullReferenceException
                areEqual = originalElement.Value.Equals(finalElement.Value);
            }
            if (!areEqual)
            {
                var diff = new ValueGraphChange
                {
                    Path         = originalElement.Path,
                    DeclaredType = originalElement.DeclaredType,
                    OldValue     = originalElement.Value,
                    NewValue     = finalElement.Value
                };
                results.Add(diff);
            }
        }
Пример #4
0
            public override void GetChanges(InterpretationContext context, ChangeList changes,
                                            ExplanationPart explanation, bool apply, Runner runner)
            {
                Change change = new Change(Variable, Variable.Value, Value);

                changes.Add(change, apply, runner);
            }
        /// <summary>
        ///     Provides the changes performed by this statement
        /// </summary>
        /// <param name="context">The context on which the changes should be computed</param>
        /// <param name="changes">The list to fill with the changes</param>
        /// <param name="explanation">The explanatino to fill, if any</param>
        /// <param name="apply">Indicates that the changes should be applied immediately</param>
        /// <param name="runner"></param>
        public override void GetChanges(InterpretationContext context, ChangeList changes, ExplanationPart explanation,
                                        bool apply, Runner runner)
        {
            IVariable var = VariableIdentification.GetVariable(context);

            if (var != null)
            {
                IValue value = Expression.GetExpressionValue(context, explanation);
                if (value != null)
                {
                    value = value.RightSide(var, true, true);
                }

                Range      range      = var.Type as Range;
                Collection collection = var.Type as Collection;
                if (range != null && range.convert(value) == null)
                {
                    AddError("Value " + value + " is outside range", RuleChecksEnum.ExecutionFailed);
                }
                else if (collection != null && collection.convert(value) == null)
                {
                    AddError("Value " + value + " cannot be assigned to variable", RuleChecksEnum.ExecutionFailed);
                }
                else
                {
                    Change change = new Change(var, var.Value, value);
                    changes.Add(change, apply, runner);
                    ExplanationPart.CreateSubExplanation(explanation, Root, change);
                }
            }
            else
            {
                AddError("Cannot find variable " + VariableIdentification, RuleChecksEnum.ExecutionFailed);
            }
        }
Пример #6
0
        /// <summary>
        ///     Provides the changes performed by this statement
        /// </summary>
        /// <param name="context">The context on which the changes should be computed</param>
        /// <param name="changes">The list to fill with the changes</param>
        /// <param name="explanation">The explanatino to fill, if any</param>
        /// <param name="apply">Indicates that the changes should be applied immediately</param>
        /// <param name="runner"></param>
        public override void GetChanges(InterpretationContext context, ChangeList changes, ExplanationPart explanation,
                                        bool apply, Runner runner)
        {
            IVariable variable = ListExpression.GetVariable(context);

            // ReSharper disable once ConditionIsAlwaysTrueOrFalse
            changes.Add(new InsertInListChange(context, this, variable, explanation), apply, runner);
        }
Пример #7
0
    public void WriteCell(int x, int y, int val)
    {
        if (x >= 0 && x < Width && y >= 0 && y < Height)
        {
            PushPixel(new Pixel(x, y, ColorPalette[val]));

            ChangeList.Add(new Change(x, y, val));
        }
    }
Пример #8
0
    public void WriteCell(int x, int y, int val)
    {
        if (x >= 0 && x < Width && y >= 0 && y < Height)
        {
            PushPixel(new Pixel(x, y, val >= 0 && val < MaxStates ? ColorPalette[val * Delta] : EmptyColor));

            ChangeList.Add(new Change(x, y, val));
        }
    }
Пример #9
0
    public void WriteCell(int x, int y, int val)
    {
        if (x >= 0 && x < Width && y >= 0 && y < Height)
        {
            PushPixel(new Pixel(x, y, val > 0 ? ColonyColor : EmptyColor));

            ChangeList.Add(new Change(x, y, val > 0 ? 1 : 0));
        }
    }
Пример #10
0
        public int AddDeleteChangeItem(int bhikkuChangeListID, int asapuwaID, int bhikkuID, DBCore.BhikkuPost post, DBCore.BhikkuChangeType changeType, bool isUpasampanna)
        {
            using (ChangeList change = new ChangeList(true))
            {
                saveHistrybtn.Enabled = true;

                if (ChangeListID == 0)
                {
                    change.FromDate = FromDate;
                    change.Todate   = ToDate;


                    ChangeListID = change.Add();
                }

                if (bhikkuChangeListID == 0)
                {
                    if (isUpasampanna)
                    {
                        upasampadaChangeCount++;
                    }
                    else
                    {
                        samaneraChangeCount++;
                    }

                    setSummaryCounts();

                    return(change.AddBhikkuAsapuwa(ChangeListID, asapuwaID, bhikkuID, post, changeType));
                }
                else
                {
                    // delete bhikku
                    if (asapuwaID == -1)
                    {
                        if (isUpasampanna)
                        {
                            upasampadaChangeCount--;
                        }
                        else
                        {
                            samaneraChangeCount--;
                        }

                        change.DeleteBhikkuAsapuwa(bhikkuChangeListID);
                        setSummaryCounts();
                        return(0);
                    }
                    else
                    {
                        change.UpdateBhikkuAsapuwa(bhikkuChangeListID, post, changeType);
                        return(bhikkuChangeListID);
                    }
                }
            }
        }
        /// <summary>
        /// Provides the changes performed by this statement
        /// </summary>
        /// <param name="context">The context on which the changes should be computed</param>
        /// <param name="changes">The list to fill with the changes</param>
        /// <param name="explanation">The explanatino to fill, if any</param>
        /// <param name="apply">Indicates that the changes should be applied immediately</param>
        public override void GetChanges(InterpretationContext context, ChangeList changes, ExplanationPart explanation, bool apply)
        {
            Variables.IVariable variable = ListExpression.GetVariable(context);
            if (variable != null)
            {
                // HacK : ensure that the value is a correct rigth side
                // and keep the result of the right side operation
                Values.ListValue listValue = variable.Value.RightSide(variable, false) as Values.ListValue;
                variable.Value = listValue;
                if (listValue != null)
                {
                    Values.ListValue newListValue = new Values.ListValue(listValue);

                    int i = 0;
                    foreach (Values.IValue current in newListValue.Val)
                    {
                        IteratorVariable.Value = current;
                        if (conditionSatisfied(context))
                        {
                            break;
                        }
                        i += 1;
                    }

                    if (i < newListValue.Val.Count)
                    {
                        Values.IValue value = Value.GetValue(context);
                        if (value != null)
                        {
                            newListValue.Val[i] = value;
                            Rules.Change change = new Rules.Change(variable, variable.Value, newListValue);
                            changes.Add(change, apply);
                            explanation.SubExplanations.Add(new ExplanationPart(Root, change));
                        }
                        else
                        {
                            Root.AddError("Cannot find value for " + Value.ToString());
                        }
                    }
                    else
                    {
                        Root.AddError("Cannot find value in " + ListExpression.ToString() + " which satisfies " + Condition.ToString());
                    }
                }
                else
                {
                    Root.AddError("Variable " + ListExpression.ToString() + " does not contain a list value");
                }
            }
            else
            {
                Root.AddError("Cannot find variable for " + ListExpression.ToString());
            }
        }
Пример #12
0
        /// <summary> Fires Changed event if some conditions are met </summary>
        public void FireChange(BGCurveChangedArgs change, bool ignoreEventsGrouping = false)
        {
            if (eventMode == EventModeEnum.NoEvents || Changed == null) return;

            if (transactionLevel > 0 || (eventMode != EventModeEnum.Immediate && !ignoreEventsGrouping))
            {
                changed = true;
                if (UseEventsArgs && !ChangeList.Contains(change)) ChangeList.Add(change);
                return;
            }

            Changed(this, UseEventsArgs ? change : null);
        }
Пример #13
0
        /// <summary>
        ///     Compares the specified results.
        /// </summary>
        /// <param name="results">The results.</param>
        /// <param name="originalElement">The original element.</param>
        /// <param name="finalElement">The final element.</param>
        private void Compare(ChangeList results, ObjectGraphCapture.ReferenceElement originalElement, ObjectGraphCapture.ReferenceElement finalElement)
        {
            bool areEqual = ReferenceEquals(originalElement.Value, finalElement.Value);

            if (!areEqual)
            {
                var diff = new ReferenceGraphChange
                {
                    Path         = originalElement.Path,
                    DeclaredType = originalElement.DeclaredType
                };
                results.Add(diff);
            }
        }
Пример #14
0
 private void Watcher_Event(Data.FileSystemWatcherEventArgs e)
 {
     if (platformType == Data.PlatformType.UWP)
     {
         Device.BeginInvokeOnMainThread(() =>
         {
             ChangeList.Add(e);
         });
     }
     else
     {
         ChangeList.Add(e);
     }
 }
Пример #15
0
        /// <summary>
        /// Updates the change list
        /// </summary>
        public bool UpdateList(Denomination coin)
        {
            // Change must be greater than value
            if (coin.Value > Change)
            {
                return(false);
            }

            // Add change to the list
            ChangeList.Add(coin.Description);

            // decrement the change
            Change -= coin.Value;
            return(true);
        }
Пример #16
0
 /// <summary>
 /// Provides the changes performed by this statement
 /// </summary>
 /// <param name="context">The context on which the changes should be computed</param>
 /// <param name="changes">The list to fill with the changes</param>
 /// <param name="explanation">The explanatino to fill, if any</param>
 /// <param name="apply">Indicates that the changes should be applied immediately</param>
 public override void GetChanges(InterpretationContext context, ChangeList changes, ExplanationPart explanation, bool apply)
 {
     Variables.IVariable var = VariableIdentification.GetVariable(context);
     if (var != null)
     {
         string        tmp   = var.FullName;
         Values.IValue value = Expression.GetValue(context);
         if (value != null)
         {
             value = value.RightSide(var, true);
         }
         Rules.Change change = new Rules.Change(var, var.Value, value);
         changes.Add(change, apply);
         explanation.SubExplanations.Add(new ExplanationPart(Root, change));
     }
     else
     {
         AddError("Cannot find variable " + VariableIdentification.ToString());
     }
 }
Пример #17
0
        /// <summary>
        ///     Provides the changes performed by this statement
        /// </summary>
        /// <param name="context">The context on which the changes should be computed</param>
        /// <param name="changes">The list to fill with the changes</param>
        /// <param name="explanation">The explanatino to fill, if any</param>
        /// <param name="apply">Indicates that the changes should be applied immediately</param>
        /// <param name="runner"></param>
        public override void GetChanges(InterpretationContext context, ChangeList changes, ExplanationPart explanation,
                                        bool apply, Runner runner)
        {
            // Explain what happens in this statement
            explanation = ExplanationPart.CreateSubExplanation(explanation, this);

            IVariable variable = ListExpression.GetVariable(context);

            if (variable != null)
            {
                // HacK : ensure that the value is a correct rigth side
                // and keep the result of the right side operation
                ListValue listValue = variable.Value.RightSide(variable, false, false) as ListValue;
                variable.Value = listValue;
                if (listValue != null)
                {
                    // Provide the state of the list before removing elements from it
                    ExplanationPart.CreateSubExplanation(explanation, "Input data = ", listValue);

                    ListValue newListValue = new ListValue(listValue.CollectionType, new List <IValue>());

                    int token = context.LocalScope.PushContext();
                    context.LocalScope.SetVariable(IteratorVariable);

                    int index = 0;
                    if (Position == PositionEnum.Last)
                    {
                        index = listValue.Val.Count - 1;
                    }

                    // Remove the element while required to do so
                    while (index >= 0 && index < listValue.Val.Count)
                    {
                        IValue value = listValue.Val[index];
                        index = NextIndex(index);

                        IteratorVariable.Value = value;
                        if (ConditionSatisfied(context, explanation))
                        {
                            if (Position != PositionEnum.All)
                            {
                                break;
                            }
                        }
                        else
                        {
                            InsertInResult(newListValue, value);
                        }
                    }

                    // Complete the list
                    while (index >= 0 && index < listValue.Val.Count)
                    {
                        IValue value = listValue.Val[index];

                        InsertInResult(newListValue, value);
                        index = NextIndex(index);
                    }

                    Change change = new Change(variable, variable.Value, newListValue);
                    changes.Add(change, apply, runner);
                    ExplanationPart.CreateSubExplanation(explanation, Root, change);

                    context.LocalScope.PopContext(token);
                }
            }
        }
Пример #18
0
        /// <summary>
        /// Checks the compatibility of all updates
        /// </summary>
        /// <param name="variableUpdates"></param>
        public void CheckUpdatesCompatibility(IEnumerable <VariableUpdate> variableUpdates)
        {
            if (CheckForCompatibleChanges)
            {
                // Holds all changes that have already been processed
                Dictionary <IVariable, Change>      changes   = new Dictionary <IVariable, Change>();
                Dictionary <Change, VariableUpdate> traceBack = new Dictionary <Change, VariableUpdate>();

                foreach (VariableUpdate variableUpdate in variableUpdates)
                {
                    Action action = variableUpdate.Action;

                    ChangeList actionChanges = variableUpdate.Changes;
                    if (variableUpdate.Action.Statement is ProcedureCallStatement)
                    {
                        Dictionary <IVariable, Change> procedureChanges = new Dictionary <IVariable, Change>();

                        foreach (Change change in variableUpdate.Changes.Changes)
                        {
                            procedureChanges[change.Variable] = change;
                        }

                        actionChanges = new ChangeList();
                        foreach (Change change in procedureChanges.Values)
                        {
                            actionChanges.Add(change, false, this);
                        }
                    }

                    foreach (Change change in actionChanges.Changes)
                    {
                        IVariable variable = change.Variable;
                        if (changes.ContainsKey(change.Variable))
                        {
                            Change otherChange = changes[change.Variable];
                            Action otherAction = traceBack[otherChange].Action;
                            if (!variable.Type.CompareForEquality(otherChange.NewValue, change.NewValue))
                            {
                                if (change.CheckForCompatibility() || otherChange.CheckForCompatibility())
                                {
                                    string action1 = ((INamable)action.Enclosing).FullName + " : " +
                                                     variableUpdate.Action.FullName;
                                    string action2 = ((INamable)otherAction.Enclosing).FullName + " : " +
                                                     traceBack[otherChange].Action.FullName;
                                    variableUpdate.Action.AddError(
                                        "Simultaneous change of the variable " + variable.FullName +
                                        " with different values. Conflit between\n" +
                                        action1 + "\n and \n" + action2);
                                    action.AddError("Conflicting change");
                                    otherAction.AddError("Conflicting change");
                                }
                            }
                        }
                        else
                        {
                            changes.Add(change.Variable, change);
                            traceBack.Add(change, variableUpdate);
                        }
                    }
                }
            }
        }
Пример #19
0
        /// <summary>
        ///     Provides the changes performed by this statement
        /// </summary>
        /// <param name="context">The context on which the changes should be computed</param>
        /// <param name="changes">The list to fill with the changes</param>
        /// <param name="explanation">The explanatino to fill, if any</param>
        /// <param name="apply">Indicates that the changes should be applied immediately</param>
        /// <param name="runner"></param>
        public override void GetChanges(InterpretationContext context, ChangeList changes, ExplanationPart explanation,
                                        bool apply, Runner runner)
        {
            // Explain what happens in this statement
            explanation = ExplanationPart.CreateSubExplanation(explanation, this);

            int index = context.LocalScope.PushContext();

            context.LocalScope.SetVariable(IteratorVariable);

            IVariable variable = ListExpression.GetVariable(context);

            if (variable != null)
            {
                // HacK : ensure that the value is a correct rigth side
                // and keep the result of the right side operation
                ListValue listValue = variable.Value.RightSide(variable, false, false) as ListValue;
                variable.Value = listValue;
                if (listValue != null)
                {
                    // Provide the state of the list before removing elements from it
                    ExplanationPart.CreateSubExplanation(explanation, "Input data = ", listValue);

                    ListValue newListValue = new ListValue(listValue);

                    int i = 0;
                    foreach (IValue current in newListValue.Val)
                    {
                        IteratorVariable.Value = current;
                        if (ConditionSatisfied(context, explanation))
                        {
                            break;
                        }
                        i += 1;
                    }

                    if (i < newListValue.Val.Count)
                    {
                        IValue value = Value.GetExpressionValue(context, explanation);
                        if (value != null)
                        {
                            newListValue.Val[i] = value;
                            Change change = new Change(variable, variable.Value, newListValue);
                            changes.Add(change, apply, runner);
                            ExplanationPart.CreateSubExplanation(explanation, Root, change);
                        }
                        else
                        {
                            Root.AddError("Cannot find value for " + Value);
                        }
                    }
                    else
                    {
                        Root.AddError("Cannot find value in " + ListExpression + " which satisfies " + Condition);
                    }
                }
                else
                {
                    Root.AddError("Variable " + ListExpression + " does not contain a list value");
                }
            }
            else
            {
                Root.AddError("Cannot find variable for " + ListExpression);
            }

            context.LocalScope.PopContext(index);
        }
Пример #20
0
        /// <summary>
        /// Provides the changes performed by this statement
        /// </summary>
        /// <param name="context">The context on which the changes should be computed</param>
        /// <param name="changes">The list to fill with the changes</param>
        /// <param name="explanation">The explanatino to fill, if any</param>
        /// <param name="apply">Indicates that the changes should be applied immediately</param>
        public override void GetChanges(InterpretationContext context, ChangeList changes, ExplanationPart explanation, bool apply)
        {
            Variables.IVariable variable = ListExpression.GetVariable(context);
            if (variable != null)
            {
                // HacK : ensure that the value is a correct rigth side
                // and keep the result of the right side operation
                Values.ListValue listValue = variable.Value.RightSide(variable, false) as Values.ListValue;
                variable.Value = listValue;
                if (listValue != null)
                {
                    Values.IValue value = Value.GetValue(context);
                    if (value != null)
                    {
                        Values.ListValue newListValue = new Values.ListValue(listValue);
                        int index = newListValue.Val.IndexOf(EFSSystem.EmptyValue);
                        if (index >= 0)
                        {
                            newListValue.Val[index] = value;
                        }
                        else
                        {
                            // List is full, try to remove an element before inserting the new element
                            if (ReplaceElement != null)
                            {
                                Values.IValue removeValue = ReplaceElement.GetValue(context);
                                index = newListValue.Val.IndexOf(removeValue);
                                if (index >= 0)
                                {
                                    newListValue.Val[index] = value;
                                }
                                else
                                {
                                    Root.AddError("Cannot remove replacing element " + removeValue.Name);
                                }
                            }
                            else
                            {
                                Root.AddError("Cannot add new element in list value : list is full");
                            }
                        }

                        Rules.Change change = new Rules.Change(variable, variable.Value, newListValue);
                        changes.Add(change, apply);
                        explanation.SubExplanations.Add(new ExplanationPart(Root, change));
                    }
                    else
                    {
                        Root.AddError("Cannot find value for " + Value.ToString());
                    }
                }
                else
                {
                    Root.AddError("Variable " + ListExpression.ToString() + " does not contain a list value");
                }
            }
            else
            {
                Root.AddError("Cannot find variable for " + ListExpression.ToString());
            }
        }
Пример #21
0
        /// <summary>
        ///     Executes the specified initial graph.
        /// </summary>
        /// <param name="initialGraph">The initial graph.</param>
        /// <param name="finalGraph">The final graph.</param>
        /// <returns>ChangeList.</returns>
        /// <exception cref="System.Exception"></exception>
        private ChangeList Execute(CaptureResults initialGraph, CaptureResults finalGraph)
        {
            var retVal             = new ChangeList();
            var unusedOriginalKeys = new List <string>(initialGraph.Elements.Keys);
            var unusedFinalKeys    = new List <string>(finalGraph.Elements.Keys);

            foreach (KeyValuePair <string, Element> pair in initialGraph.Elements)
            {
                Element originalElement = pair.Value;
                Element finalElement;
                if (finalGraph.Elements.TryGetValue(pair.Key, out finalElement))
                {
                    unusedOriginalKeys.Remove(pair.Key);
                    unusedFinalKeys.Remove(pair.Key);
                    if (originalElement.GetType() != finalElement.GetType())
                    {
                        throw new Exception();
                    }
                    if (originalElement is ObjectGraphCapture.ReferenceElement)
                    {
                        if (originalElement.DeclaredType.IsArray)
                        {
                            ArrayCompare(retVal, (ObjectGraphCapture.ReferenceElement)originalElement, (ObjectGraphCapture.ReferenceElement)finalElement);
                        }
                        else
                        {
                            Compare(retVal, (ObjectGraphCapture.ReferenceElement)originalElement, (ObjectGraphCapture.ReferenceElement)finalElement);
                        }
                    }
                    else
                    {
                        Compare(retVal, (ObjectGraphCapture.ValueElement)originalElement, (ObjectGraphCapture.ValueElement)finalElement);
                    }
                }
            }
            foreach (string key in unusedOriginalKeys)
            {
                Element item = initialGraph.Elements[key];
                var     diff = new MissingGraphChange
                {
                    Path         = item.Path,
                    DeclaredType = item.DeclaredType,
                };
                var asValueChange = item as ObjectGraphCapture.ValueElement;
                if (asValueChange != null)
                {
                    diff.OldValue = asValueChange.Value;
                }
                retVal.Add(diff);
            }
            foreach (string key in unusedFinalKeys)
            {
                Element item = finalGraph.Elements[key];
                var     diff = new AddedGraphChange
                {
                    Path         = item.Path,
                    DeclaredType = item.DeclaredType,
                };
                var asValueChange = item as ObjectGraphCapture.ValueElement;
                if (asValueChange != null)
                {
                    diff.NewValue = asValueChange.Value;
                }
                retVal.Add(diff);
            }
            return(retVal);
        }
Пример #22
0
        /// <summary>
        ///     Arrays the compare.
        /// </summary>
        /// <param name="retVal">The ret value.</param>
        /// <param name="originalElement">The original element.</param>
        /// <param name="finalElement">The final element.</param>
        private void ArrayCompare(ChangeList retVal, ObjectGraphCapture.ReferenceElement originalElement, ObjectGraphCapture.ReferenceElement finalElement)
        {
            Compare(retVal, originalElement, finalElement);
            var originalArray = (Array)originalElement.Value;
            var finalArray    = (Array)finalElement.Value;

            if ((originalArray == null) || (finalArray == null))
            {
                return;
            }
            var finalList    = new List <Tuple <object, int> >();
            var originalList = new List <Tuple <object, int> >();

            for (int index = 0; index < Math.Min(originalArray.Length, finalArray.Length); ++index)
            {
                object originalItem = originalArray.GetValue(index);
                object finalItem    = finalArray.GetValue(index);
                if (originalItem != null)
                {
                    if (finalItem != null)
                    {
                        // Both Live!
                        if (!CheckSame(originalItem, finalItem))
                        {
                            originalList.Add(new Tuple <object, int>(originalItem, index));
                            finalList.Add(new Tuple <object, int>(finalItem, index));
                        }
                    }
                    else
                    {
                        //! Original Only
                        originalList.Add(new Tuple <object, int>(originalItem, index));
                    }
                }
                else
                {
                    if (finalItem != null)
                    {
                        // Final Only
                        finalList.Add(new Tuple <object, int>(finalItem, index));
                    }
                }
            }

            var match = new List <Tuple <Tuple <object, int>, Tuple <object, int> > >();

            foreach (Tuple <object, int> originalItem in originalList)
            {
                foreach (Tuple <object, int> finalItem in finalList)
                {
                    if (CheckSame(originalItem.Item1, finalItem.Item1))
                    {
                        match.Add(new Tuple <Tuple <object, int>, Tuple <object, int> >(originalItem, finalItem));
                    }
                }
            }
            foreach (Tuple <Tuple <object, int>, Tuple <object, int> > item in match)
            {
                if (item.Item1.Item2 != item.Item2.Item2)
                {
                    retVal.Add(new MiscGraphChange("ArrayIndewx,{0}=>{1})", item.Item1.Item2 != item.Item2.Item2));
                }
                originalList.Remove(item.Item1);
                finalList.Remove(item.Item2);
            }
            if (originalList.Count > 0)
            {
                foreach (Tuple <object, int> pair in originalList)
                {
                    object item = pair.Item1;
                    retVal.Add(new MiscGraphChange("ArrayRemove,{0}@{1})", (item != null) ? item.GetType().Name : "{null}", IndexOf(originalArray, item)));
                }
            }
            if (finalList.Count > 0)
            {
                foreach (Tuple <object, int> pair in finalList)
                {
                    object item = pair.Item1;
                    retVal.Add(new MiscGraphChange("ArrayAdd,{0}@{1})", (item != null) ? item.GetType().Name : "{null}", IndexOf(finalArray, item)));
                }
            }
        }
        /// <summary>
        /// Provides the changes performed by this statement
        /// </summary>
        /// <param name="context">The context on which the changes should be computed</param>
        /// <param name="changes">The list to fill with the changes</param>
        /// <param name="explanation">The explanatino to fill, if any</param>
        /// <param name="apply">Indicates that the changes should be applied immediately</param>
        public override void GetChanges(InterpretationContext context, ChangeList changes, ExplanationPart explanation, bool apply)
        {
            Variables.IVariable variable = ListExpression.GetVariable(context);
            if (variable != null)
            {
                // HacK : ensure that the value is a correct rigth side
                // and keep the result of the right side operation
                Values.ListValue listValue = variable.Value.RightSide(variable, false) as Values.ListValue;
                variable.Value = listValue;
                if (listValue != null)
                {
                    Values.ListValue newListValue = new Values.ListValue(listValue.CollectionType, new List <Values.IValue>());

                    int token = context.LocalScope.PushContext();
                    context.LocalScope.setVariable(IteratorVariable);

                    int index = 0;
                    if (Position == PositionEnum.Last)
                    {
                        index = listValue.Val.Count - 1;
                    }

                    // Remove the element while required to do so
                    while (index >= 0 && index < listValue.Val.Count)
                    {
                        Values.IValue value = listValue.Val[index];
                        index = nextIndex(index);

                        if (value == EFSSystem.EmptyValue)
                        {
                            InsertInResult(newListValue, value);
                        }
                        else
                        {
                            IteratorVariable.Value = value;
                            if (conditionSatisfied(context))
                            {
                                if (Position != PositionEnum.All)
                                {
                                    break;
                                }
                            }
                            else
                            {
                                InsertInResult(newListValue, value);
                            }
                        }
                    }

                    // Complete the list
                    while (index >= 0 && index < listValue.Val.Count)
                    {
                        Values.IValue value = listValue.Val[index];

                        InsertInResult(newListValue, value);
                        index = nextIndex(index);
                    }

                    // Fill the gap
                    while (newListValue.Val.Count < listValue.Val.Count)
                    {
                        newListValue.Val.Add(EFSSystem.EmptyValue);
                    }

                    Rules.Change change = new Rules.Change(variable, variable.Value, newListValue);
                    changes.Add(change, apply);
                    explanation.SubExplanations.Add(new ExplanationPart(Root, change));

                    context.LocalScope.PopContext(token);
                }
            }
        }