added a check

scroll-tech · Aug 20, 2024 · 2bd9438 · 2bd9438
1 parent ba4f61c
commit 2bd9438
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/coordinator/internal/logic/provertask/batch_prover_task.go b/coordinator/internal/logic/provertask/batch_prover_task.go
@@ -255,6 +255,10 @@ func (bp *BatchProverTask) getBatchTaskDetail(ctx context.Context, dbBatch *orm.
 		chunks[i] = &encoding.Chunk{Blocks: blocks}
 	}
 
+	if dbBatch.Index == 0 {
+		return nil, fmt.Errorf("unexpected case: batch index should not be 0, i.e. genesis batch should have codec version 0")
+	}
+
 	dbParentBatch, getErr := bp.batchOrm.GetBatchByIndex(ctx, dbBatch.Index-1)
 	if getErr != nil {
 		return nil, fmt.Errorf("failed to get parent batch header for batch %d: %w", dbBatch.Index, getErr)