Don't throw errors in CodeLensHandler if a node has no title token.

Fixes #385.
YarnSpinnerTool · Dec 3, 2024 · 12f6d9a · 12f6d9a
1 parent a16c4eb
commit 12f6d9a
Showing 1 changed file with 8 additions and 0 deletions.
diff --git a/YarnSpinner.LanguageServer/src/Server/Handlers/CodeLensHandler.cs b/YarnSpinner.LanguageServer/src/Server/Handlers/CodeLensHandler.cs
@@ -32,6 +32,14 @@ public Task<CodeLensContainer> Handle(CodeLensParams request, CancellationToken
 
             var results = yarnFile.NodeDefinitions.SelectMany(titleToken =>
                {
+                   if (titleToken.StartIndex == -1)
+                   {
+                       // This is an error token - the node doesn't actually
+                       // have a valid title. Return an empty collection of code
+                       // lenses.
+                       return [];
+                   }
+
                    var referenceLocations = ReferencesHandler.GetReferences(project, titleToken.Text, YarnSymbolType.Node);
                    var count = referenceLocations.Count() - 1; // This is a count of 'other' references, so don't include the declaration