core: only cache non-nil receipts from the database (#18447)

receipts may be null for very short time in some condition. For this case, we should not add the null value into cache. Because you will not get the right result if you keep requesting that receipt.
pull/18476/head
silence 6 years ago committed by Péter Szilágyi
parent 19bfcbf911
commit 66f0c464cc
  1. 3
      core/blockchain.go

@ -644,6 +644,9 @@ func (bc *BlockChain) GetReceiptsByHash(hash common.Hash) types.Receipts {
return nil
}
receipts := rawdb.ReadReceipts(bc.db, hash, *number)
if receipts == nil {
return nil
}
bc.receiptsCache.Add(hash, receipts)
return receipts
}

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