core/rawdb: remove unused function

Author: rjl493456442

core/rawdb/accessors_chain_test.go

@@ -19,13 +19,13 @@ package rawdb
 import (
 	"bytes"
 	"encoding/hex"
-	"errors"
 	"fmt"
 	"math/big"
 	"math/rand"
 	"os"
 	"reflect"
 	"testing"
+	"time"
 
 	"github.com/ethereum/go-ethereum/common"
 	"github.com/ethereum/go-ethereum/core/types"
@@ -768,27 +768,6 @@ func TestReadLogs(t *testing.T) {
 	}
 }
 
-// deriveLogFields fills the logs in receiptLogs with information such as block number, txhash, etc.
-func deriveLogFields(receipts []*receiptLogs, hash common.Hash, number uint64, txs types.Transactions) error {
-	logIndex := uint(0)
-	if len(txs) != len(receipts) {
-		return errors.New("transaction and receipt count mismatch")
-	}
-	for i := 0; i < len(receipts); i++ {
-		txHash := txs[i].Hash()
-		// The derived log fields can simply be set from the block and transaction
-		for j := 0; j < len(receipts[i].Logs); j++ {
-			receipts[i].Logs[j].BlockNumber = number
-			receipts[i].Logs[j].BlockHash = hash
-			receipts[i].Logs[j].TxHash = txHash
-			receipts[i].Logs[j].TxIndex = uint(i)
-			receipts[i].Logs[j].Index = logIndex
-			logIndex++
-		}
-	}
-	return nil
-}
-
 func TestDeriveLogFields(t *testing.T) {
 	// Create a few transactions to have receipts for
 	to2 := common.HexToAddress("0x2")
@@ -816,7 +795,7 @@ func TestDeriveLogFields(t *testing.T) {
 		}),
 	}
 	// Create the corresponding receipts
-	receipts := []*receiptLogs{
+	receipts := []*types.Receipt{
 		{
 			Logs: []*types.Log{
 				{Address: common.BytesToAddress([]byte{0x11})},
@@ -840,9 +819,7 @@ func TestDeriveLogFields(t *testing.T) {
 	// Derive log metadata fields
 	number := big.NewInt(1)
 	hash := common.BytesToHash([]byte{0x03, 0x14})
-	if err := deriveLogFields(receipts, hash, number.Uint64(), txs); err != nil {
-		t.Fatal(err)
-	}
+	types.Receipts(receipts).DeriveFields(params.TestChainConfig, hash, number.Uint64(), uint64(time.Now().Unix()), big.NewInt(0), big.NewInt(0), txs)
 
 	// Iterate over all the computed fields and check that they're correct
 	logIndex := uint(0)