public void visit(ChoiceV choiceV)
{
foreach (GrammarNodeV child in choiceV.Children)
{
child.accept(this);
}
}
public void visit(ChoiceV choiceV)
{
List<UserControl> children = new List<UserControl>();
foreach (GrammarNodeV child in choiceV.Children)
{
child.accept(this);
children.Add(drawnItem);
}
drawnItem = new Choice(children, choiceV.Direction);
children = null;
}
public void AddReference(ChoiceV choiceV)
{
references.Add(choiceV);
}
public void visit(ChoiceD choiceD)
{
List<GrammarNodeV> children = new List<GrammarNodeV>();
foreach (GrammarNodeD child in choiceD.Children)
{
// make children
child.accept(this);
children.Add(current);
}
ChoiceV choiceV = new ChoiceV(children, choiceD);
choiceD.AddReference(choiceV);
current = choiceV;
}
public void visit(ChoiceV choiceV)
{
GrammarNodeV childToDelete = null;
int position = -1;
for (int i = 0; i < choiceV.Children.Count; i++)
{
GrammarNodeV child = choiceV.Children[i];
if (child.getReference() == target)
{
position = i;
break;
}
child.accept(this);
// assert child is a concatenationV
if (!(child is ConcatenationV))
throw new Exception("Child is not of type concatenationV");
if ((child as ConcatenationV).Children.Count == 0)
childToDelete = child;
}
if (childToDelete != null)
{
childToDelete.Dispose();
choiceV.Children.Remove(childToDelete);
}
if (position >= 0)
{
if (choiceV.Children.Count == 1)
throw new Exception("Should not be removing the choice when only one choice remains, sharpen up!");
// much better, we're remvoing a choice
choiceV.Children[position].Dispose();
choiceV.Children.RemoveAt(position);
}
}
public void visit(ChoiceV choiceV)
{
int initialCount = choiceV.Children.Count;
for (int i = 0; i < initialCount; i++)
{
choiceV.Children[i].accept(this);
}
}