setlens

beacon_chain/consensus_object_pools/data_column_quarantine.nim

@@ -130,16 +130,16 @@ func hasDataColumns*(quarantine: DataColumnQuarantine,
                           max(SAMPLES_PER_SLOT.uint64,
                               localSubnetCount))
   if quarantine.supernode:
-    for i in localCustodyColumns:
-      if (blck.root, ColumnIndex i) in quarantine.data_columns:
-        inc counter
-    if counter >= (NUMBER_OF_COLUMNS div 2):
+    let
+      collectedColumns = quarantine.gatherDataColumns(blck)
+    if collectedColumns.len >= (localCustodyColumns.len div 2):
       return true
   else:
     for i in localCustodyColumns:
       if (blck.root, ColumnIndex i) notin quarantine.data_columns:
         return false
-  true
+      else:
+        return true
 
 func dataColumnFetchRecord*(quarantine: DataColumnQuarantine,
     blck: deneb.SignedBeaconBlock | electra.SignedBeaconBlock): DataColumnFetchRecord =

beacon_chain/spec/eip7594_helpers.nim

@@ -191,7 +191,8 @@ proc recover_cells_and_proofs*(
       return err ("DataColumns do not have the same length")
 
   var
-    recovered_cps = newSeqOfCap[CellsAndProofs](blobCount)
+    recovered_cps = newSeq[CellsAndProofs]
+  recovered_cps.setLen(blobCount)
 
   for blobIdx in 0 ..< blobCount:
     var
@@ -199,11 +200,14 @@ proc recover_cells_and_proofs*(
       cell_ids = newSeqOfCap[CellID](columnCount)
       ckzgCells = newSeqOfCap[KzgCell](columnCount)
 
-    for i  in 0..<data_columns.len:
-      cell_ids.add data_columns[i].index
+    cell_ids.setLen(0)
+    ckzgCells.setLen(0)
+
+    for col in data_columns:
+      cell_ids.add col.index
 
       let 
-        column = data_columns[i].column
+        column = col.column
         cell = column[bIdx]
       
       ckzgCells.add cell