/// <summary>
/// Push node to yieldstack with current symboltable state
/// </summary>
/// <param name="node">Node to push</param>
private void PushYieldNode(ISyntaxNode node)
{
YieldElement element = new YieldElement();
element.SetRootElement(node);
element.SetSymbolTable((SymbolTable)SymbolTable.Clone());
YieldStack.Push(element);
}
/// <summary>
/// Interpret YieldStatement
/// </summary>
/// <param name="statement">YieldStatement to interpret</param>
public override void Visit(YieldStatement statement)
{
if (YieldStack.Count == 0)
{
return;
}
//Pop from YieldStack and lets interpet it
YieldElement yieldElement = YieldStack.Pop();
if (yieldElement != null && yieldElement.GetRootElement() != null)
{
//Let's copy yieldstack, because there are possible yields in the yield.
Stack <YieldElement> tempYieldStack = new Stack <YieldElement>();
List <YieldElement> yieldList = YieldStack.ToList();
foreach (YieldElement yieldNode in yieldList)
{
tempYieldStack.Push(yieldNode);
}
//Lets interpret it with specific symboltable
SymbolTable temp = (SymbolTable)SymbolTable.Clone();
SymbolTable = yieldElement.GetSymbolTable();
yieldElement.GetRootElement().AcceptVisitor(this);
//Add some content when node is an expression or embedding
if (yieldElement.GetRootElement() is Expression || yieldElement.GetRootElement() is Embedding)
{
XHTMLElement element = new XHTMLElement(TextValue, Current);
element.SetTagState(false);
AddElement(element);
}
//Restore symboltable
SymbolTable = temp;
//Restore YieldStack in original shape before interpreting
YieldStack = tempYieldStack;
}
}
