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266 lines
7.9 KiB
266 lines
7.9 KiB
// Copyright 2024 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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"github.com/ethereum/go-ethereum/core/stateless"
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"github.com/ethereum/go-ethereum/core/tracing"
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"github.com/ethereum/go-ethereum/core/types"
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"github.com/ethereum/go-ethereum/crypto"
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"github.com/ethereum/go-ethereum/params"
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"github.com/ethereum/go-ethereum/trie/utils"
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"github.com/holiman/uint256"
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)
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// hookedStateDB represents a statedb which emits calls to tracing-hooks
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// on state operations.
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type hookedStateDB struct {
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inner *StateDB
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hooks *tracing.Hooks
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}
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// NewHookedState wraps the given stateDb with the given hooks
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func NewHookedState(stateDb *StateDB, hooks *tracing.Hooks) *hookedStateDB {
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s := &hookedStateDB{stateDb, hooks}
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if s.hooks == nil {
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s.hooks = new(tracing.Hooks)
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}
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return s
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}
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func (s *hookedStateDB) CreateAccount(addr common.Address) {
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s.inner.CreateAccount(addr)
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}
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func (s *hookedStateDB) CreateContract(addr common.Address) {
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s.inner.CreateContract(addr)
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}
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func (s *hookedStateDB) GetBalance(addr common.Address) *uint256.Int {
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return s.inner.GetBalance(addr)
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}
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func (s *hookedStateDB) GetNonce(addr common.Address) uint64 {
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return s.inner.GetNonce(addr)
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}
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func (s *hookedStateDB) GetCodeHash(addr common.Address) common.Hash {
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return s.inner.GetCodeHash(addr)
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}
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func (s *hookedStateDB) GetCode(addr common.Address) []byte {
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return s.inner.GetCode(addr)
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}
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func (s *hookedStateDB) GetCodeSize(addr common.Address) int {
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return s.inner.GetCodeSize(addr)
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}
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func (s *hookedStateDB) AddRefund(u uint64) {
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s.inner.AddRefund(u)
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}
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func (s *hookedStateDB) SubRefund(u uint64) {
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s.inner.SubRefund(u)
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}
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func (s *hookedStateDB) GetRefund() uint64 {
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return s.inner.GetRefund()
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}
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func (s *hookedStateDB) GetCommittedState(addr common.Address, hash common.Hash) common.Hash {
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return s.inner.GetCommittedState(addr, hash)
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}
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func (s *hookedStateDB) GetState(addr common.Address, hash common.Hash) common.Hash {
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return s.inner.GetState(addr, hash)
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}
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func (s *hookedStateDB) GetStorageRoot(addr common.Address) common.Hash {
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return s.inner.GetStorageRoot(addr)
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}
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func (s *hookedStateDB) GetTransientState(addr common.Address, key common.Hash) common.Hash {
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return s.inner.GetTransientState(addr, key)
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}
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func (s *hookedStateDB) SetTransientState(addr common.Address, key, value common.Hash) {
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s.inner.SetTransientState(addr, key, value)
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}
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func (s *hookedStateDB) HasSelfDestructed(addr common.Address) bool {
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return s.inner.HasSelfDestructed(addr)
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}
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func (s *hookedStateDB) Exist(addr common.Address) bool {
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return s.inner.Exist(addr)
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}
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func (s *hookedStateDB) Empty(addr common.Address) bool {
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return s.inner.Empty(addr)
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}
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func (s *hookedStateDB) AddressInAccessList(addr common.Address) bool {
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return s.inner.AddressInAccessList(addr)
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}
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func (s *hookedStateDB) SlotInAccessList(addr common.Address, slot common.Hash) (addressOk bool, slotOk bool) {
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return s.inner.SlotInAccessList(addr, slot)
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}
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func (s *hookedStateDB) AddAddressToAccessList(addr common.Address) {
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s.inner.AddAddressToAccessList(addr)
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}
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func (s *hookedStateDB) AddSlotToAccessList(addr common.Address, slot common.Hash) {
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s.inner.AddSlotToAccessList(addr, slot)
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}
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func (s *hookedStateDB) PointCache() *utils.PointCache {
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return s.inner.PointCache()
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}
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func (s *hookedStateDB) Prepare(rules params.Rules, sender, coinbase common.Address, dest *common.Address, precompiles []common.Address, txAccesses types.AccessList) {
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s.inner.Prepare(rules, sender, coinbase, dest, precompiles, txAccesses)
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}
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func (s *hookedStateDB) RevertToSnapshot(i int) {
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s.inner.RevertToSnapshot(i)
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}
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func (s *hookedStateDB) Snapshot() int {
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return s.inner.Snapshot()
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}
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func (s *hookedStateDB) AddPreimage(hash common.Hash, bytes []byte) {
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s.inner.AddPreimage(hash, bytes)
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}
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func (s *hookedStateDB) Witness() *stateless.Witness {
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return s.inner.Witness()
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}
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func (s *hookedStateDB) SubBalance(addr common.Address, amount *uint256.Int, reason tracing.BalanceChangeReason) uint256.Int {
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prev := s.inner.SubBalance(addr, amount, reason)
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if s.hooks.OnBalanceChange != nil && !amount.IsZero() {
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newBalance := new(uint256.Int).Sub(&prev, amount)
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s.hooks.OnBalanceChange(addr, prev.ToBig(), newBalance.ToBig(), reason)
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}
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return prev
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}
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func (s *hookedStateDB) AddBalance(addr common.Address, amount *uint256.Int, reason tracing.BalanceChangeReason) uint256.Int {
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prev := s.inner.AddBalance(addr, amount, reason)
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if s.hooks.OnBalanceChange != nil && !amount.IsZero() {
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newBalance := new(uint256.Int).Add(&prev, amount)
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s.hooks.OnBalanceChange(addr, prev.ToBig(), newBalance.ToBig(), reason)
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}
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return prev
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}
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func (s *hookedStateDB) SetNonce(address common.Address, nonce uint64) {
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s.inner.SetNonce(address, nonce)
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if s.hooks.OnNonceChange != nil {
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s.hooks.OnNonceChange(address, nonce-1, nonce)
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}
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}
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func (s *hookedStateDB) SetCode(address common.Address, code []byte) {
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s.inner.SetCode(address, code)
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if s.hooks.OnCodeChange != nil {
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s.hooks.OnCodeChange(address, types.EmptyCodeHash, nil, crypto.Keccak256Hash(code), code)
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}
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}
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func (s *hookedStateDB) SetState(address common.Address, key common.Hash, value common.Hash) common.Hash {
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prev := s.inner.SetState(address, key, value)
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if s.hooks.OnStorageChange != nil && prev != value {
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s.hooks.OnStorageChange(address, key, prev, value)
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}
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return prev
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}
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func (s *hookedStateDB) SelfDestruct(address common.Address) uint256.Int {
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var prevCode []byte
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var prevCodeHash common.Hash
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if s.hooks.OnCodeChange != nil {
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prevCode = s.inner.GetCode(address)
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prevCodeHash = s.inner.GetCodeHash(address)
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}
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prev := s.inner.SelfDestruct(address)
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if s.hooks.OnBalanceChange != nil && !prev.IsZero() {
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s.hooks.OnBalanceChange(address, prev.ToBig(), new(big.Int), tracing.BalanceDecreaseSelfdestruct)
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}
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if s.hooks.OnCodeChange != nil && len(prevCode) > 0 {
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s.hooks.OnCodeChange(address, prevCodeHash, prevCode, types.EmptyCodeHash, nil)
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}
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return prev
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}
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func (s *hookedStateDB) SelfDestruct6780(address common.Address) (uint256.Int, bool) {
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var prevCode []byte
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var prevCodeHash common.Hash
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if s.hooks.OnCodeChange != nil {
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prevCodeHash = s.inner.GetCodeHash(address)
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prevCode = s.inner.GetCode(address)
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}
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prev, changed := s.inner.SelfDestruct6780(address)
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if s.hooks.OnBalanceChange != nil && changed && !prev.IsZero() {
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s.hooks.OnBalanceChange(address, prev.ToBig(), new(big.Int), tracing.BalanceDecreaseSelfdestruct)
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}
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if s.hooks.OnCodeChange != nil && changed && len(prevCode) > 0 {
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s.hooks.OnCodeChange(address, prevCodeHash, prevCode, types.EmptyCodeHash, nil)
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}
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return prev, changed
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}
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func (s *hookedStateDB) AddLog(log *types.Log) {
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// The inner will modify the log (add fields), so invoke that first
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s.inner.AddLog(log)
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if s.hooks.OnLog != nil {
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s.hooks.OnLog(log)
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}
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}
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func (s *hookedStateDB) Finalise(deleteEmptyObjects bool) {
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defer s.inner.Finalise(deleteEmptyObjects)
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if s.hooks.OnBalanceChange == nil {
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return
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}
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for addr := range s.inner.journal.dirties {
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obj := s.inner.stateObjects[addr]
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if obj != nil && obj.selfDestructed {
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// If ether was sent to account post-selfdestruct it is burnt.
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if bal := obj.Balance(); bal.Sign() != 0 {
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s.hooks.OnBalanceChange(addr, bal.ToBig(), new(big.Int), tracing.BalanceDecreaseSelfdestructBurn)
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}
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}
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}
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}
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