public static BamlNode Parse(BamlDocument document, CancellationToken token)
{
Debug.Assert(document.Count > 0 && document[0].Type == BamlRecordType.DocumentStart);
BamlBlockNode current = null;
var stack = new Stack <BamlBlockNode>();
for (int i = 0; i < document.Count; i++)
{
token.ThrowIfCancellationRequested();
if (IsHeader(document[i]))
{
var prev = current;
current = new BamlBlockNode {
Header = document[i]
};
if (!(prev is null))
{
prev.Children.Add(current);
current.Parent = prev;
stack.Push(prev);
}
}
else if (IsFooter(document[i]))
{
if (current is null)
{
throw new Exception("Unexpected footer.");
}
while (!IsMatch(current.Header, document[i]))
{
// End record can be omited (sometimes).
if (stack.Count > 0)
{
current = stack.Pop();
}
}
current.Footer = document[i];
if (stack.Count > 0)
{
current = stack.Pop();
}
}
else
{
current.Children.Add(new BamlRecordNode(document[i])
{
Parent = current
});
}
}
Debug.Assert(stack.Count == 0);
return(current);
}
void BuildNodeMap(BamlBlockNode node, RecursionCounter counter) {
if (node == null || !counter.Increment())
return;
NodeMap[node.Header] = node;
foreach (var child in node.Children) {
var childBlock = child as BamlBlockNode;
if (childBlock != null)
BuildNodeMap(childBlock, counter);
}
counter.Decrement();
}
public static void ProcessChildren(XamlContext ctx, BamlBlockNode node, BamlElement nodeElem) {
ctx.XmlNs.PushScope(nodeElem);
if (nodeElem.Xaml.Element != null)
nodeElem.Xaml.Element.AddAnnotation(ctx.XmlNs.CurrentScope);
foreach (var child in node.Children) {
var handler = LookupHandler(child.Type);
if (handler == null) {
Debug.WriteLine("BAML Handler {0} not implemented.", child.Type);
continue;
}
var elem = handler.Translate(ctx, (BamlNode)child, nodeElem);
if (elem != null) {
nodeElem.Children.Add(elem);
elem.Parent = nodeElem;
}
ctx.CancellationToken.ThrowIfCancellationRequested();
}
ctx.XmlNs.PopScope();
}
public static BamlNode Parse(BamlDocument document, CancellationToken token) {
Debug.Assert(document.Count > 0 && document[0].Type == BamlRecordType.DocumentStart);
BamlBlockNode current = null;
var stack = new Stack<BamlBlockNode>();
for (int i = 0; i < document.Count; i++) {
token.ThrowIfCancellationRequested();
if (IsHeader(document[i])) {
var prev = current;
current = new BamlBlockNode {
Header = document[i]
};
if (prev != null) {
prev.Children.Add(current);
current.Parent = prev;
stack.Push(prev);
}
}
else if (IsFooter(document[i])) {
if (current == null)
throw new Exception("Unexpected footer.");
while (!IsMatch(current.Header, document[i])) {
// End record can be omited (sometimes).
if (stack.Count > 0)
current = stack.Pop();
}
current.Footer = document[i];
if (stack.Count > 0)
current = stack.Pop();
}
else
current.Children.Add(new BamlRecordNode(document[i]) { Parent = current });
}
Debug.Assert(stack.Count == 0);
return current;
}