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Update types.go

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oxBoni 2025-11-21 21:51:32 +01:00 committed by GitHub
parent f4817b7a53
commit 7cac77ef06
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1 changed files with 13 additions and 2 deletions
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15
common/types.go
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@ -23,11 +23,13 @@ import (
"encoding/json"
"errors"
"fmt"
"hash"
"math/big"
"math/rand"
"reflect"
"strconv"
"strings"
"sync"
"github.com/ethereum/go-ethereum/common/hexutil"
"golang.org/x/crypto/sha3"
@ -50,6 +52,11 @@ var (
// MaxHash represents the maximum possible hash value.
MaxHash = HexToHash("0xffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff")
// keccak256Pool is a pool of Keccak256 hashers for address checksum calculation
keccak256Pool = sync.Pool{New: func() any {
return sha3.NewLegacyKeccak256()
}}
)
// Hash represents the 32 byte Keccak256 hash of arbitrary data.
@ -271,8 +278,12 @@ func (a *Address) checksumHex() []byte {
buf := a.hex()
// compute checksum
sha := sha3.NewLegacyKeccak256()
sha.Write(buf[2:])
sha, ok := keccak256Pool.Get().(hash.Hash)
if !ok {
sha = sha3.NewLegacyKeccak256()
}
defer keccak256Pool.Put(sha)
sha.Reset()
hash := sha.Sum(nil)
for i := 2; i < len(buf); i++ {
hashByte := hash[(i-2)/2]