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core/state: invoke OnCodeChange-hook on selfdestruct (#30686) 

This change invokes the OnCodeChange hook when selfdestruct operation is performed, and a contract is removed. This is an event which can be consumed by tracers.
This commit is contained in:
Karol Chojnowski 2024-11-08 15:25:30 +01:00 committed by GitHub
parent 7cbce8ed58
commit 3c7336b0e9
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GPG Key ID: B5690EEEBB952194
1 changed files with 34 additions and 10 deletions
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32
core/state/statedb_hooked.go
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@ -198,22 +198,46 @@ func (s *hookedStateDB) SetState(address common.Address, key common.Hash, value
} }
func (s *hookedStateDB) SelfDestruct(address common.Address) uint256.Int { func (s *hookedStateDB) SelfDestruct(address common.Address) uint256.Int {
var prevCode []byte
var prevCodeHash common.Hash
if s.hooks.OnCodeChange != nil {
prevCode = s.inner.GetCode(address)
prevCodeHash = s.inner.GetCodeHash(address)
}
prev := s.inner.SelfDestruct(address) prev := s.inner.SelfDestruct(address)
if !prev.IsZero() {
if s.hooks.OnBalanceChange != nil { if s.hooks.OnBalanceChange != nil && !prev.IsZero() {
s.hooks.OnBalanceChange(address, prev.ToBig(), new(big.Int), tracing.BalanceDecreaseSelfdestruct) s.hooks.OnBalanceChange(address, prev.ToBig(), new(big.Int), tracing.BalanceDecreaseSelfdestruct)
} }
if s.hooks.OnCodeChange != nil && len(prevCode) > 0 {
s.hooks.OnCodeChange(address, prevCodeHash, prevCode, types.EmptyCodeHash, nil)
} }
return prev return prev
} }
func (s *hookedStateDB) SelfDestruct6780(address common.Address) (uint256.Int, bool) { func (s *hookedStateDB) SelfDestruct6780(address common.Address) (uint256.Int, bool) {
var prevCode []byte
var prevCodeHash common.Hash
if s.hooks.OnCodeChange != nil {
prevCodeHash = s.inner.GetCodeHash(address)
prevCode = s.inner.GetCode(address)
}
prev, changed := s.inner.SelfDestruct6780(address) prev, changed := s.inner.SelfDestruct6780(address)
if !prev.IsZero() && changed {
if s.hooks.OnBalanceChange != nil { if s.hooks.OnBalanceChange != nil && changed && !prev.IsZero() {
s.hooks.OnBalanceChange(address, prev.ToBig(), new(big.Int), tracing.BalanceDecreaseSelfdestruct) s.hooks.OnBalanceChange(address, prev.ToBig(), new(big.Int), tracing.BalanceDecreaseSelfdestruct)
} }
if s.hooks.OnCodeChange != nil && changed && len(prevCode) > 0 {
s.hooks.OnCodeChange(address, prevCodeHash, prevCode, types.EmptyCodeHash, nil)
} }
return prev, changed return prev, changed
} }