private void DeclareNewVariable(Identifier key, IResolvable value)
{
if (ReferenceTables.ContainsIdentifier(key))
{
Exceptions.Add(new RedeclaredVariableWarning("Redeclared variable detected: " + key, key.SourceLocation));
}
ReferenceTables.SetReference(key, value);
}
public UserInterfaceVisitor(ReferenceTables referenceTables, IList <QLBaseException> exceptions, ObservableCollection <WidgetBase> elementsToDisplay, Action rebuildMethod)
{
_widgetFactory = new WidgetFactory();
_elementsToDisplay = elementsToDisplay;
_rebuildMethod = rebuildMethod;
ReferenceTables = referenceTables;
Exceptions = exceptions;
}
public void Visit(OrOperator node)
{
VisitBinary(node);
ITerminalWrapper leftWrapper = ReferenceTables.GetValue(node.Left);
ITerminalWrapper rightWrapper = ReferenceTables.GetValue(node.Right);
ReferenceTables.SetValue(node, ((dynamic)leftWrapper) | ((dynamic)rightWrapper));
}
public void Visit(QuestionUnit node)
{
ReferenceTables.SetReference(node.Identifier, node.DataType);
if (!ReferenceTables.ContainsReference(node.DataType))
{
var wrapper = _terminalWrapperFactory.CreateWrapper(node.DataType);
node.Value = wrapper;
ReferenceTables.SetValue(node.DataType, wrapper);
}
}
public void Visit(Expression node)
{
//if expression is literal
if (node.Child == null)
{
throw new Exception("Expression should have one and only one child");
}
node.Child.Accept(this);
ReferenceTables.SetValue(node, ReferenceTables.GetValue(node.Child));
}
private void SetRows(IList <IList <int> > rows)
{
var tableList = ReferenceTables.ToList();
for (int i = 0; i < tableList.Count; ++i)
{
rowList[i] = new List <int>(rows[i]);
}
if (rows.Count > 0)
{
rowCount = rows[0].Count();
}
}
public void Visit(ControlUnit node)
{
node.Expression.Accept(this);
YesnoWrapper conditionstate = (YesnoWrapper)ReferenceTables.GetValue(node.Expression);
if (node.ConditionTrueBlock != null && conditionstate.Value.HasValue && conditionstate.Value.Value)
{
node.ConditionTrueBlock.Accept(this);
}
if (node.ConditionFalseBlock != null && conditionstate.Value.HasValue && !conditionstate.Value.Value)
{
node.ConditionFalseBlock.Accept(this);
}
}
public void Visit(ControlUnit node)
{
YesnoWrapper evaluatedResult = (YesnoWrapper)ReferenceTables.GetValueOrNull(node.Expression);
_parentExpressionDidNotEvaluate = !evaluatedResult.ToBool();
if (node.ConditionTrueBlock != null)
{
node.ConditionTrueBlock.Accept(this);
}
_parentExpressionDidNotEvaluate = false;
if (node.ConditionFalseBlock != null)
{
node.ConditionFalseBlock.Accept(this);
}
}
public void Visit(StatementUnit node)
{
ITerminalWrapper evaluatedResult = ReferenceTables.GetValueOrNull(node.Expression);
node.Value = evaluatedResult;
WidgetBase unitWrapper = _widgetFactory.GetWidget(node);
unitWrapper.Visibility = _parentExpressionDidNotEvaluate ? Visibility.Collapsed : Visibility.Visible;
int index = _elementsToDisplay.ToList().FindIndex(elem => elem.Unit.Identifier == unitWrapper.Unit.Identifier);
if (index < 0)
{
_elementsToDisplay.Add(unitWrapper);
}
else
{
_elementsToDisplay[index].Visibility = unitWrapper.Visibility;
}
}
public void Visit(QuestionUnit node)
{
WidgetBase unitWrapper = _widgetFactory.GetWidget(node, ReferenceTables.GetValue(node.Identifier));
unitWrapper.Visibility = _parentExpressionDidNotEvaluate ? Visibility.Collapsed : Visibility.Visible;
int index = _elementsToDisplay.ToList().FindIndex(elem => elem.Unit.Identifier == unitWrapper.Unit.Identifier);
if (index < 0)
{
INotifyPropertyChanged nodeValue = node.Value as INotifyPropertyChanged;
if (nodeValue != null)
{
nodeValue.PropertyChanged += (sender, args) => _rebuildMethod();
}
_elementsToDisplay.Add(unitWrapper);
}
else
{
_elementsToDisplay[index].Visibility = unitWrapper.Visibility;
}
}
public void Visit(StatementUnit node)
{
node.Expression.Accept(this);
ReferenceTables.SetReference(node.Identifier, node.Expression);
}
public EvaluatorVisitor(ObservableCollection <QLBaseException> exceptions, ReferenceTables referenceTables)
{
_terminalWrapperFactory = new TerminalWrapperFactory();
Exceptions = exceptions;
ReferenceTables = referenceTables;
}
public void Visit(Text node)
{
ReferenceTables.SetValue(node, new TextWrapper(node));
}
public void Visit(Yesno node)
{
ReferenceTables.SetValue(node, new YesnoWrapper(node));
}
public void Visit(Number node)
{
ReferenceTables.SetValue(node, new NumberWrapper(node));
}
public TypeCheckerVisitor(ReferenceTables referenceTables, IList <QLBaseException> exceptions)
{
ReferenceTables = referenceTables;
Exceptions = exceptions;
}
