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avoid trigger memory reallocation of slice

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maskpp 2024-07-01 22:23:36 +08:00
parent 7cfff30ba3
commit 25dcb2e67c
1 changed files with 4 additions and 4 deletions
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8
trie/utils/verkle.go
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@ -18,6 +18,7 @@ package utils
import ( import (
"encoding/binary" "encoding/binary"
"slices"
"sync" "sync"
"github.com/crate-crypto/go-ipa/bandersnatch/fr" "github.com/crate-crypto/go-ipa/bandersnatch/fr"
@ -307,9 +308,7 @@ func pointToHash(evaluated *verkle.Point, suffix byte) []byte {
// tree would be empty. To avoid this problem, use a little // tree would be empty. To avoid this problem, use a little
// endian commitment and chop the MSB. // endian commitment and chop the MSB.
bytes := evaluated.Bytes() bytes := evaluated.Bytes()
for i := 0; i < 16; i++ { slices.Reverse(bytes[:])
bytes[31-i], bytes[i] = bytes[i], bytes[31-i]
}
bytes[31] = suffix bytes[31] = suffix
return bytes[:] return bytes[:]
} }
@ -317,7 +316,8 @@ func pointToHash(evaluated *verkle.Point, suffix byte) []byte {
func evaluateAddressPoint(address []byte) *verkle.Point { func evaluateAddressPoint(address []byte) *verkle.Point {
if len(address) < 32 { if len(address) < 32 {
var aligned [32]byte var aligned [32]byte
address = append(aligned[:32-len(address)], address...) copy(aligned[32-len(address):], address)
address = aligned[:]
} }
var poly [3]fr.Element var poly [3]fr.Element