public override TexlNode Clone(ref int idNext, Span ts)
{
var left = Left.Clone(ref idNext, ts);
var newNodes = new Dictionary <TexlNode, TexlNode>
{
{ Left, left },
};
var rightNode = RightNode?.Clone(ref idNext, ts);
if (rightNode != null)
{
newNodes.Add(RightNode, rightNode);
}
DottedNameNode clonedNode = new DottedNameNode(
ref idNext,
Token.Clone(ts),
SourceList.Clone(ts, newNodes),
left,
Right.Clone(ts),
rightNode);
return(clonedNode);
}
public DPath ToDPath()
{
Contracts.Assert(HasPossibleNamespaceQualifier);
Stack <DName> names = new Stack <DName>(2);
names.Push(Right.Name);
// Traverse the DottedNameNode structure non-recursively, to account for the possibility
// that it may be very deep. Accumulate all encountered names onto a stack.
DottedNameNode pointer = this;
bool reachedLeft = false;
while (pointer != null)
{
TexlNode left = pointer.Left;
switch (left)
{
case FirstNameNode firstNameNode:
names.Push(firstNameNode.Ident.Name);
reachedLeft = true;
break;
case ParentNode parentNode:
names.Push(new DName(TexlLexer.KeywordParent));
reachedLeft = true;
break;
case SelfNode selfNode:
names.Push(new DName(TexlLexer.KeywordSelf));
reachedLeft = true;
break;
}
if (reachedLeft)
{
break;
}
pointer = left as DottedNameNode;
if (pointer != null)
{
names.Push(pointer.Right.Name);
}
else
{
Contracts.Assert(false, "Can only do this for dotted names consisting of identifiers");
}
}
// For the DPath by unwinding the names stack
DPath path = DPath.Root;
while (names.Count > 0)
{
path = path.Append(names.Pop());
}
return(path);
}