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reuse polynomial evaluation in account update #108

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merged 1 commit into from
Jun 28, 2022
Merged

reuse polynomial evaluation in account update #108

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28 changes: 21 additions & 7 deletions trie/verkle.go
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Original file line number Diff line number Diff line change
Expand Up @@ -63,29 +63,43 @@ func (trie *VerkleTrie) TryGet(key []byte) ([]byte, error) {
}

func (t *VerkleTrie) TryUpdateAccount(key []byte, acc *types.StateAccount) error {
var (
err error
nonce, balance [32]byte
balancekey, cskey, ckkey, noncekey [32]byte
)

var err error
if err = t.TryUpdate(utils.GetTreeKeyVersion(key), []byte{0}); err != nil {
// Only evaluate the polynomial once
versionkey := utils.GetTreeKeyVersion(key[:])
copy(balancekey[:], versionkey)
balancekey[31] = utils.BalanceLeafKey
copy(noncekey[:], versionkey)
noncekey[31] = utils.NonceLeafKey
copy(cskey[:], versionkey)
cskey[31] = utils.CodeSizeLeafKey
copy(ckkey[:], versionkey)
ckkey[31] = utils.CodeKeccakLeafKey

if err = t.TryUpdate(versionkey, []byte{0}); err != nil {
return fmt.Errorf("updateStateObject (%x) error: %v", key, err)
}
var nonce [32]byte
binary.LittleEndian.PutUint64(nonce[:], acc.Nonce)
if err = t.TryUpdate(utils.GetTreeKeyNonce(key), nonce[:]); err != nil {
if err = t.TryUpdate(noncekey[:], nonce[:]); err != nil {
return fmt.Errorf("updateStateObject (%x) error: %v", key, err)
}
var balance [32]byte
bbytes := acc.Balance.Bytes()
if len(bbytes) > 0 {
for i, b := range bbytes {
balance[len(bbytes)-i-1] = b
}
}
if err = t.TryUpdate(utils.GetTreeKeyBalance(key), balance[:]); err != nil {
if err = t.TryUpdate(balancekey[:], balance[:]); err != nil {
return fmt.Errorf("updateStateObject (%x) error: %v", key, err)
}
if err = t.TryUpdate(utils.GetTreeKeyCodeKeccak(key), acc.CodeHash); err != nil {
if err = t.TryUpdate(ckkey[:], acc.CodeHash); err != nil {
return fmt.Errorf("updateStateObject (%x) error: %v", key, err)
}
// TODO figure out if the code size needs to be updated, too

return nil
}
Expand Down