wip - unhandled internal-nodes-only stream

nextstrain · Nov 14, 2024 · e143ca7 · e143ca7
1 parent 8f86cb4
commit e143ca7
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/src/util/partitionIntoStreams.js b/src/util/partitionIntoStreams.js
@@ -51,6 +51,9 @@ export function partitionIntoStreams(enabled, branchLabel, nodes, visibility, co
         stack.push(child)
       }
     }
+    if (nodesInStream.length===0) {
+      throw new Error("Stream constructed without any terminal tips. This is currently an unhandled error.")
+    }
     // categories may have zero counts associated with them (over all pivots) depending on visibility settings
     stream.categories = observedCategories(nodesInStream, colorScale);
     stream.categoryColors = stream.categories.map((value) => colorScale.scale(value))