tweaks in support of better node groups in VSCode

Author: parisba

YarnSpinner.Compiler/NodeMetadata.cs

@@ -16,6 +16,21 @@ public class NodeMetadata
         /// </summary>
         public string Title { get; set; } = string.Empty;
 
+        /// <summary>
+        /// the original title as written in source (before any rewriting by NodeGroupVisitor)
+        /// </summary>
+        public string? SourceTitle { get; set; } = null;
+
+        /// <summary>
+        /// the rewritten unique title (e.g. "Meeting.happy" or "Meeting.checksum"), set by NodeGroupVisitor
+        /// </summary>
+        public string? UniqueTitle { get; set; } = null;
+
+        /// <summary>
+        /// the node group name (equals sourceTitle when when: headers exist, null otherwise)
+        /// </summary>
+        public string? NodeGroup { get; set; } = null;
+
         /// <summary>
         /// the subtitle of the node (optional)
         /// </summary>

YarnSpinner.Compiler/Visitors/NodeMetadataVisitor.cs

@@ -78,6 +78,12 @@ public override object VisitNode([NotNull] YarnSpinnerParser.NodeContext context
             // Visit children to extract all the metadata.
             base.VisitNode(context);
 
+            // Populate node group fields from the parse context.
+            // NodeGroupVisitor runs before NodeMetadataVisitor, so these are already set.
+            currentNode.SourceTitle = currentNode.Title;      // Always the original title: header value
+            currentNode.UniqueTitle = context.NodeTitle;       // Rewritten by NodeGroupVisitor
+            currentNode.NodeGroup = context.NodeGroup;         // Set by NodeGroupVisitor (null if not grouped)
+
             // Only add nodes that have a title.
             if (!string.IsNullOrWhiteSpace(currentNode.Title))
             {