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https://gitlab.com/pulsechaincom/erigon-pulse.git
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024d41d0c2
Removed exported statedb object accessors, reducing the chance for nasty bugs to creep in. It's also ugly and unnecessary to have these methods.
137 lines
3.1 KiB
Go
137 lines
3.1 KiB
Go
// Copyright 2016 The go-ethereum Authors
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// This file is part of the go-ethereum library.
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//
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// The go-ethereum library is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Lesser General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// The go-ethereum library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public License
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// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
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package state
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import (
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"math/big"
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"github.com/ethereum/go-ethereum/common"
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)
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type journalEntry interface {
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undo(*StateDB)
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}
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type journal []journalEntry
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type (
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// Changes to the account trie.
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createObjectChange struct {
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account *common.Address
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}
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resetObjectChange struct {
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prev *stateObject
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}
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suicideChange struct {
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account *common.Address
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prev bool // whether account had already suicided
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prevbalance *big.Int
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}
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// Changes to individual accounts.
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balanceChange struct {
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account *common.Address
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prev *big.Int
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}
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nonceChange struct {
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account *common.Address
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prev uint64
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}
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storageChange struct {
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account *common.Address
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key, prevalue common.Hash
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}
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codeChange struct {
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account *common.Address
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prevcode, prevhash []byte
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}
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// Changes to other state values.
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refundChange struct {
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prev *big.Int
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}
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addLogChange struct {
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txhash common.Hash
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}
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addPreimageChange struct {
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hash common.Hash
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}
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touchChange struct {
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account *common.Address
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prev bool
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}
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)
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func (ch createObjectChange) undo(s *StateDB) {
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delete(s.stateObjects, *ch.account)
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delete(s.stateObjectsDirty, *ch.account)
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}
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func (ch resetObjectChange) undo(s *StateDB) {
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s.setStateObject(ch.prev)
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}
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func (ch suicideChange) undo(s *StateDB) {
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obj := s.getStateObject(*ch.account)
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if obj != nil {
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obj.suicided = ch.prev
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obj.setBalance(ch.prevbalance)
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}
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}
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var ripemd = common.HexToAddress("0000000000000000000000000000000000000003")
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func (ch touchChange) undo(s *StateDB) {
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if !ch.prev && *ch.account != ripemd {
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delete(s.stateObjects, *ch.account)
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delete(s.stateObjectsDirty, *ch.account)
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}
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}
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func (ch balanceChange) undo(s *StateDB) {
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s.getStateObject(*ch.account).setBalance(ch.prev)
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}
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func (ch nonceChange) undo(s *StateDB) {
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s.getStateObject(*ch.account).setNonce(ch.prev)
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}
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func (ch codeChange) undo(s *StateDB) {
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s.getStateObject(*ch.account).setCode(common.BytesToHash(ch.prevhash), ch.prevcode)
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}
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func (ch storageChange) undo(s *StateDB) {
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s.getStateObject(*ch.account).setState(ch.key, ch.prevalue)
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}
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func (ch refundChange) undo(s *StateDB) {
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s.refund = ch.prev
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}
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func (ch addLogChange) undo(s *StateDB) {
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logs := s.logs[ch.txhash]
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if len(logs) == 1 {
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delete(s.logs, ch.txhash)
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} else {
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s.logs[ch.txhash] = logs[:len(logs)-1]
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}
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}
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func (ch addPreimageChange) undo(s *StateDB) {
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delete(s.preimages, ch.hash)
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}
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