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core: don't use me, this, self as receiver names

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This commit is contained in:
Delweng Zheng 2018-06-03 16:08:44 +08:00
parent c7612bdc30
commit db7285cacc
4 changed files with 242 additions and 242 deletions
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18
core/state/dump.go
View file

@ -39,15 +39,15 @@ type Dump struct {
Accounts map[string]DumpAccount `json:"accounts"`
}
func (self *StateDB) RawDump() Dump {
func (db *StateDB) RawDump() Dump {
dump := Dump{
Root: fmt.Sprintf("%x", self.trie.Hash()),
Root: fmt.Sprintf("%x", db.trie.Hash()),
Accounts: make(map[string]DumpAccount),
}
it := trie.NewIterator(self.trie.NodeIterator(nil))
it := trie.NewIterator(db.trie.NodeIterator(nil))
for it.Next() {
addr := self.trie.GetKey(it.Key)
addr := db.trie.GetKey(it.Key)
var data Account
if err := rlp.DecodeBytes(it.Value, &data); err != nil {
panic(err)
@ -59,20 +59,20 @@ func (self *StateDB) RawDump() Dump {
Nonce: data.Nonce,
Root: common.Bytes2Hex(data.Root[:]),
CodeHash: common.Bytes2Hex(data.CodeHash),
Code: common.Bytes2Hex(obj.Code(self.db)),
Code: common.Bytes2Hex(obj.Code(db.db)),
Storage: make(map[string]string),
}
storageIt := trie.NewIterator(obj.getTrie(self.db).NodeIterator(nil))
storageIt := trie.NewIterator(obj.getTrie(db.db).NodeIterator(nil))
for storageIt.Next() {
account.Storage[common.Bytes2Hex(self.trie.GetKey(storageIt.Key))] = common.Bytes2Hex(storageIt.Value)
account.Storage[common.Bytes2Hex(db.trie.GetKey(storageIt.Key))] = common.Bytes2Hex(storageIt.Value)
}
dump.Accounts[common.Bytes2Hex(addr)] = account
}
return dump
}
func (self *StateDB) Dump() []byte {
json, err := json.MarshalIndent(self.RawDump(), "", " ")
func (db *StateDB) Dump() []byte {
json, err := json.MarshalIndent(db.RawDump(), "", " ")
if err != nil {
fmt.Println("dump err", err)
}

176
core/state/state_object.go
View file

@ -31,23 +31,23 @@ var emptyCodeHash = crypto.Keccak256(nil)
type Code []byte
func (self Code) String() string {
return string(self) //strings.Join(Disassemble(self), " ")
func (c Code) String() string {
return string(c) //strings.Join(Disassemble(c), " ")
}
type Storage map[common.Hash]common.Hash
func (self Storage) String() (str string) {
for key, value := range self {
func (s Storage) String() (str string) {
for key, value := range s {
str += fmt.Sprintf("%X : %X\n", key, value)
}
return
}
func (self Storage) Copy() Storage {
func (s Storage) Copy() Storage {
cpy := make(Storage)
for key, value := range self {
for key, value := range s {
cpy[key] = value
}
@ -126,14 +126,14 @@ func (c *stateObject) EncodeRLP(w io.Writer) error {
}
// setError remembers the first non-nil error it is called with.
func (self *stateObject) setError(err error) {
if self.dbErr == nil {
self.dbErr = err
func (object *stateObject) setError(err error) {
if object.dbErr == nil {
object.dbErr = err
}
}
func (self *stateObject) markSuicided() {
self.suicided = true
func (object *stateObject) markSuicided() {
object.suicided = true
}
func (c *stateObject) touch() {
@ -160,75 +160,75 @@ func (c *stateObject) getTrie(db Database) Trie {
}
// GetState returns a value in account storage.
func (self *stateObject) GetState(db Database, key common.Hash) common.Hash {
value, exists := self.cachedStorage[key]
func (object *stateObject) GetState(db Database, key common.Hash) common.Hash {
value, exists := object.cachedStorage[key]
if exists {
return value
}
// Load from DB in case it is missing.
enc, err := self.getTrie(db).TryGet(key[:])
enc, err := object.getTrie(db).TryGet(key[:])
if err != nil {
self.setError(err)
object.setError(err)
return common.Hash{}
}
if len(enc) > 0 {
_, content, _, err := rlp.Split(enc)
if err != nil {
self.setError(err)
object.setError(err)
}
value.SetBytes(content)
}
self.cachedStorage[key] = value
object.cachedStorage[key] = value
return value
}
// SetState updates a value in account storage.
func (self *stateObject) SetState(db Database, key, value common.Hash) {
self.db.journal.append(storageChange{
account: &self.address,
func (object *stateObject) SetState(db Database, key, value common.Hash) {
object.db.journal.append(storageChange{
account: &object.address,
key: key,
prevalue: self.GetState(db, key),
prevalue: object.GetState(db, key),
})
self.setState(key, value)
object.setState(key, value)
}
func (self *stateObject) setState(key, value common.Hash) {
self.cachedStorage[key] = value
self.dirtyStorage[key] = value
func (object *stateObject) setState(key, value common.Hash) {
object.cachedStorage[key] = value
object.dirtyStorage[key] = value
}
// updateTrie writes cached storage modifications into the object's storage trie.
func (self *stateObject) updateTrie(db Database) Trie {
tr := self.getTrie(db)
for key, value := range self.dirtyStorage {
delete(self.dirtyStorage, key)
func (object *stateObject) updateTrie(db Database) Trie {
tr := object.getTrie(db)
for key, value := range object.dirtyStorage {
delete(object.dirtyStorage, key)
if (value == common.Hash{}) {
self.setError(tr.TryDelete(key[:]))
object.setError(tr.TryDelete(key[:]))
continue
}
// Encoding []byte cannot fail, ok to ignore the error.
v, _ := rlp.EncodeToBytes(bytes.TrimLeft(value[:], "\x00"))
self.setError(tr.TryUpdate(key[:], v))
object.setError(tr.TryUpdate(key[:], v))
}
return tr
}
// UpdateRoot sets the trie root to the current root hash of
func (self *stateObject) updateRoot(db Database) {
self.updateTrie(db)
self.data.Root = self.trie.Hash()
func (object *stateObject) updateRoot(db Database) {
object.updateTrie(db)
object.data.Root = object.trie.Hash()
}
// CommitTrie the storage trie of the object to dwb.
// This updates the trie root.
func (self *stateObject) CommitTrie(db Database) error {
self.updateTrie(db)
if self.dbErr != nil {
return self.dbErr
func (object *stateObject) CommitTrie(db Database) error {
object.updateTrie(db)
if object.dbErr != nil {
return object.dbErr
}
root, err := self.trie.Commit(nil)
root, err := object.trie.Commit(nil)
if err == nil {
self.data.Root = root
object.data.Root = root
}
return err
}
@ -257,32 +257,32 @@ func (c *stateObject) SubBalance(amount *big.Int) {
c.SetBalance(new(big.Int).Sub(c.Balance(), amount))
}
func (self *stateObject) SetBalance(amount *big.Int) {
self.db.journal.append(balanceChange{
account: &self.address,
prev: new(big.Int).Set(self.data.Balance),
func (object *stateObject) SetBalance(amount *big.Int) {
object.db.journal.append(balanceChange{
account: &object.address,
prev: new(big.Int).Set(object.data.Balance),
})
self.setBalance(amount)
object.setBalance(amount)
}
func (self *stateObject) setBalance(amount *big.Int) {
self.data.Balance = amount
func (object *stateObject) setBalance(amount *big.Int) {
object.data.Balance = amount
}
// Return the gas back to the origin. Used by the Virtual machine or Closures
func (c *stateObject) ReturnGas(gas *big.Int) {}
func (self *stateObject) deepCopy(db *StateDB) *stateObject {
stateObject := newObject(db, self.address, self.data)
if self.trie != nil {
stateObject.trie = db.db.CopyTrie(self.trie)
func (object *stateObject) deepCopy(db *StateDB) *stateObject {
stateObject := newObject(db, object.address, object.data)
if object.trie != nil {
stateObject.trie = db.db.CopyTrie(object.trie)
}
stateObject.code = self.code
stateObject.dirtyStorage = self.dirtyStorage.Copy()
stateObject.cachedStorage = self.dirtyStorage.Copy()
stateObject.suicided = self.suicided
stateObject.dirtyCode = self.dirtyCode
stateObject.deleted = self.deleted
stateObject.code = object.code
stateObject.dirtyStorage = object.dirtyStorage.Copy()
stateObject.cachedStorage = object.dirtyStorage.Copy()
stateObject.suicided = object.suicided
stateObject.dirtyCode = object.dirtyCode
stateObject.deleted = object.deleted
return stateObject
}
@ -296,64 +296,64 @@ func (c *stateObject) Address() common.Address {
}
// Code returns the contract code associated with this object, if any.
func (self *stateObject) Code(db Database) []byte {
if self.code != nil {
return self.code
func (object *stateObject) Code(db Database) []byte {
if object.code != nil {
return object.code
}
if bytes.Equal(self.CodeHash(), emptyCodeHash) {
if bytes.Equal(object.CodeHash(), emptyCodeHash) {
return nil
}
code, err := db.ContractCode(self.addrHash, common.BytesToHash(self.CodeHash()))
code, err := db.ContractCode(object.addrHash, common.BytesToHash(object.CodeHash()))
if err != nil {
self.setError(fmt.Errorf("can't load code hash %x: %v", self.CodeHash(), err))
object.setError(fmt.Errorf("can't load code hash %x: %v", object.CodeHash(), err))
}
self.code = code
object.code = code
return code
}
func (self *stateObject) SetCode(codeHash common.Hash, code []byte) {
prevcode := self.Code(self.db.db)
self.db.journal.append(codeChange{
account: &self.address,
prevhash: self.CodeHash(),
func (object *stateObject) SetCode(codeHash common.Hash, code []byte) {
prevcode := object.Code(object.db.db)
object.db.journal.append(codeChange{
account: &object.address,
prevhash: object.CodeHash(),
prevcode: prevcode,
})
self.setCode(codeHash, code)
object.setCode(codeHash, code)
}
func (self *stateObject) setCode(codeHash common.Hash, code []byte) {
self.code = code
self.data.CodeHash = codeHash[:]
self.dirtyCode = true
func (object *stateObject) setCode(codeHash common.Hash, code []byte) {
object.code = code
object.data.CodeHash = codeHash[:]
object.dirtyCode = true
}
func (self *stateObject) SetNonce(nonce uint64) {
self.db.journal.append(nonceChange{
account: &self.address,
prev: self.data.Nonce,
func (object *stateObject) SetNonce(nonce uint64) {
object.db.journal.append(nonceChange{
account: &object.address,
prev: object.data.Nonce,
})
self.setNonce(nonce)
object.setNonce(nonce)
}
func (self *stateObject) setNonce(nonce uint64) {
self.data.Nonce = nonce
func (object *stateObject) setNonce(nonce uint64) {
object.data.Nonce = nonce
}
func (self *stateObject) CodeHash() []byte {
return self.data.CodeHash
func (object *stateObject) CodeHash() []byte {
return object.data.CodeHash
}
func (self *stateObject) Balance() *big.Int {
return self.data.Balance
func (object *stateObject) Balance() *big.Int {
return object.data.Balance
}
func (self *stateObject) Nonce() uint64 {
return self.data.Nonce
func (object *stateObject) Nonce() uint64 {
return object.data.Nonce
}
// Never called, but must be present to allow stateObject to be used
// as a vm.Account interface that also satisfies the vm.ContractRef
// interface. Interfaces are awesome.
func (self *stateObject) Value() *big.Int {
func (object *stateObject) Value() *big.Int {
panic("Value on stateObject should never be called")
}

278
core/state/statedb.go
View file

@ -101,103 +101,103 @@ func New(root common.Hash, db Database) (*StateDB, error) {
}
// setError remembers the first non-nil error it is called with.
func (self *StateDB) setError(err error) {
if self.dbErr == nil {
self.dbErr = err
func (db *StateDB) setError(err error) {
if db.dbErr == nil {
db.dbErr = err
}
}
func (self *StateDB) Error() error {
return self.dbErr
func (db *StateDB) Error() error {
return db.dbErr
}
// Reset clears out all ephemeral state objects from the state db, but keeps
// the underlying state trie to avoid reloading data for the next operations.
func (self *StateDB) Reset(root common.Hash) error {
tr, err := self.db.OpenTrie(root)
func (db *StateDB) Reset(root common.Hash) error {
tr, err := db.db.OpenTrie(root)
if err != nil {
return err
}
self.trie = tr
self.stateObjects = make(map[common.Address]*stateObject)
self.stateObjectsDirty = make(map[common.Address]struct{})
self.thash = common.Hash{}
self.bhash = common.Hash{}
self.txIndex = 0
self.logs = make(map[common.Hash][]*types.Log)
self.logSize = 0
self.preimages = make(map[common.Hash][]byte)
self.clearJournalAndRefund()
db.trie = tr
db.stateObjects = make(map[common.Address]*stateObject)
db.stateObjectsDirty = make(map[common.Address]struct{})
db.thash = common.Hash{}
db.bhash = common.Hash{}
db.txIndex = 0
db.logs = make(map[common.Hash][]*types.Log)
db.logSize = 0
db.preimages = make(map[common.Hash][]byte)
db.clearJournalAndRefund()
return nil
}
func (self *StateDB) AddLog(log *types.Log) {
self.journal.append(addLogChange{txhash: self.thash})
func (db *StateDB) AddLog(log *types.Log) {
db.journal.append(addLogChange{txhash: db.thash})
log.TxHash = self.thash
log.BlockHash = self.bhash
log.TxIndex = uint(self.txIndex)
log.Index = self.logSize
self.logs[self.thash] = append(self.logs[self.thash], log)
self.logSize++
log.TxHash = db.thash
log.BlockHash = db.bhash
log.TxIndex = uint(db.txIndex)
log.Index = db.logSize
db.logs[db.thash] = append(db.logs[db.thash], log)
db.logSize++
}
func (self *StateDB) GetLogs(hash common.Hash) []*types.Log {
return self.logs[hash]
func (db *StateDB) GetLogs(hash common.Hash) []*types.Log {
return db.logs[hash]
}
func (self *StateDB) Logs() []*types.Log {
func (db *StateDB) Logs() []*types.Log {
var logs []*types.Log
for _, lgs := range self.logs {
for _, lgs := range db.logs {
logs = append(logs, lgs...)
}
return logs
}
// AddPreimage records a SHA3 preimage seen by the VM.
func (self *StateDB) AddPreimage(hash common.Hash, preimage []byte) {
if _, ok := self.preimages[hash]; !ok {
self.journal.append(addPreimageChange{hash: hash})
func (db *StateDB) AddPreimage(hash common.Hash, preimage []byte) {
if _, ok := db.preimages[hash]; !ok {
db.journal.append(addPreimageChange{hash: hash})
pi := make([]byte, len(preimage))
copy(pi, preimage)
self.preimages[hash] = pi
db.preimages[hash] = pi
}
}
// Preimages returns a list of SHA3 preimages that have been submitted.
func (self *StateDB) Preimages() map[common.Hash][]byte {
return self.preimages
func (db *StateDB) Preimages() map[common.Hash][]byte {
return db.preimages
}
func (self *StateDB) AddRefund(gas uint64) {
self.journal.append(refundChange{prev: self.refund})
self.refund += gas
func (db *StateDB) AddRefund(gas uint64) {
db.journal.append(refundChange{prev: db.refund})
db.refund += gas
}
// Exist reports whether the given account address exists in the state.
// Notably this also returns true for suicided accounts.
func (self *StateDB) Exist(addr common.Address) bool {
return self.getStateObject(addr) != nil
func (db *StateDB) Exist(addr common.Address) bool {
return db.getStateObject(addr) != nil
}
// Empty returns whether the state object is either non-existent
// or empty according to the EIP161 specification (balance = nonce = code = 0)
func (self *StateDB) Empty(addr common.Address) bool {
so := self.getStateObject(addr)
func (db *StateDB) Empty(addr common.Address) bool {
so := db.getStateObject(addr)
return so == nil || so.empty()
}
// Retrieve the balance from the given address or 0 if object not found
func (self *StateDB) GetBalance(addr common.Address) *big.Int {
stateObject := self.getStateObject(addr)
func (db *StateDB) GetBalance(addr common.Address) *big.Int {
stateObject := db.getStateObject(addr)
if stateObject != nil {
return stateObject.Balance()
}
return common.Big0
}
func (self *StateDB) GetNonce(addr common.Address) uint64 {
stateObject := self.getStateObject(addr)
func (db *StateDB) GetNonce(addr common.Address) uint64 {
stateObject := db.getStateObject(addr)
if stateObject != nil {
return stateObject.Nonce()
}
@ -205,63 +205,63 @@ func (self *StateDB) GetNonce(addr common.Address) uint64 {
return 0
}
func (self *StateDB) GetCode(addr common.Address) []byte {
stateObject := self.getStateObject(addr)
func (db *StateDB) GetCode(addr common.Address) []byte {
stateObject := db.getStateObject(addr)
if stateObject != nil {
return stateObject.Code(self.db)
return stateObject.Code(db.db)
}
return nil
}
func (self *StateDB) GetCodeSize(addr common.Address) int {
stateObject := self.getStateObject(addr)
func (db *StateDB) GetCodeSize(addr common.Address) int {
stateObject := db.getStateObject(addr)
if stateObject == nil {
return 0
}
if stateObject.code != nil {
return len(stateObject.code)
}
size, err := self.db.ContractCodeSize(stateObject.addrHash, common.BytesToHash(stateObject.CodeHash()))
size, err := db.db.ContractCodeSize(stateObject.addrHash, common.BytesToHash(stateObject.CodeHash()))
if err != nil {
self.setError(err)
db.setError(err)
}
return size
}
func (self *StateDB) GetCodeHash(addr common.Address) common.Hash {
stateObject := self.getStateObject(addr)
func (db *StateDB) GetCodeHash(addr common.Address) common.Hash {
stateObject := db.getStateObject(addr)
if stateObject == nil {
return common.Hash{}
}
return common.BytesToHash(stateObject.CodeHash())
}
func (self *StateDB) GetState(addr common.Address, bhash common.Hash) common.Hash {
stateObject := self.getStateObject(addr)
func (db *StateDB) GetState(addr common.Address, bhash common.Hash) common.Hash {
stateObject := db.getStateObject(addr)
if stateObject != nil {
return stateObject.GetState(self.db, bhash)
return stateObject.GetState(db.db, bhash)
}
return common.Hash{}
}
// Database retrieves the low level database supporting the lower level trie ops.
func (self *StateDB) Database() Database {
return self.db
func (db *StateDB) Database() Database {
return db.db
}
// StorageTrie returns the storage trie of an account.
// The return value is a copy and is nil for non-existent accounts.
func (self *StateDB) StorageTrie(addr common.Address) Trie {
stateObject := self.getStateObject(addr)
func (db *StateDB) StorageTrie(addr common.Address) Trie {
stateObject := db.getStateObject(addr)
if stateObject == nil {
return nil
}
cpy := stateObject.deepCopy(self)
return cpy.updateTrie(self.db)
cpy := stateObject.deepCopy(db)
return cpy.updateTrie(db.db)
}
func (self *StateDB) HasSuicided(addr common.Address) bool {
stateObject := self.getStateObject(addr)
func (db *StateDB) HasSuicided(addr common.Address) bool {
stateObject := db.getStateObject(addr)
if stateObject != nil {
return stateObject.suicided
}
@ -273,46 +273,46 @@ func (self *StateDB) HasSuicided(addr common.Address) bool {
*/
// AddBalance adds amount to the account associated with addr.
func (self *StateDB) AddBalance(addr common.Address, amount *big.Int) {
stateObject := self.GetOrNewStateObject(addr)
func (db *StateDB) AddBalance(addr common.Address, amount *big.Int) {
stateObject := db.GetOrNewStateObject(addr)
if stateObject != nil {
stateObject.AddBalance(amount)
}
}
// SubBalance subtracts amount from the account associated with addr.
func (self *StateDB) SubBalance(addr common.Address, amount *big.Int) {
stateObject := self.GetOrNewStateObject(addr)
func (db *StateDB) SubBalance(addr common.Address, amount *big.Int) {
stateObject := db.GetOrNewStateObject(addr)
if stateObject != nil {
stateObject.SubBalance(amount)
}
}
func (self *StateDB) SetBalance(addr common.Address, amount *big.Int) {
stateObject := self.GetOrNewStateObject(addr)
func (db *StateDB) SetBalance(addr common.Address, amount *big.Int) {
stateObject := db.GetOrNewStateObject(addr)
if stateObject != nil {
stateObject.SetBalance(amount)
}
}
func (self *StateDB) SetNonce(addr common.Address, nonce uint64) {
stateObject := self.GetOrNewStateObject(addr)
func (db *StateDB) SetNonce(addr common.Address, nonce uint64) {
stateObject := db.GetOrNewStateObject(addr)
if stateObject != nil {
stateObject.SetNonce(nonce)
}
}
func (self *StateDB) SetCode(addr common.Address, code []byte) {
stateObject := self.GetOrNewStateObject(addr)
func (db *StateDB) SetCode(addr common.Address, code []byte) {
stateObject := db.GetOrNewStateObject(addr)
if stateObject != nil {
stateObject.SetCode(crypto.Keccak256Hash(code), code)
}
}
func (self *StateDB) SetState(addr common.Address, key, value common.Hash) {
stateObject := self.GetOrNewStateObject(addr)
func (db *StateDB) SetState(addr common.Address, key, value common.Hash) {
stateObject := db.GetOrNewStateObject(addr)
if stateObject != nil {
stateObject.SetState(self.db, key, value)
stateObject.SetState(db.db, key, value)
}
}
@ -321,12 +321,12 @@ func (self *StateDB) SetState(addr common.Address, key, value common.Hash) {
//
// The account's state object is still available until the state is committed,
// getStateObject will return a non-nil account after Suicide.
func (self *StateDB) Suicide(addr common.Address) bool {
stateObject := self.getStateObject(addr)
func (db *StateDB) Suicide(addr common.Address) bool {
stateObject := db.getStateObject(addr)
if stateObject == nil {
return false
}
self.journal.append(suicideChange{
db.journal.append(suicideChange{
account: &addr,
prev: stateObject.suicided,
prevbalance: new(big.Int).Set(stateObject.Balance()),
@ -342,26 +342,26 @@ func (self *StateDB) Suicide(addr common.Address) bool {
//
// updateStateObject writes the given object to the trie.
func (self *StateDB) updateStateObject(stateObject *stateObject) {
func (db *StateDB) updateStateObject(stateObject *stateObject) {
addr := stateObject.Address()
data, err := rlp.EncodeToBytes(stateObject)
if err != nil {
panic(fmt.Errorf("can't encode object at %x: %v", addr[:], err))
}
self.setError(self.trie.TryUpdate(addr[:], data))
db.setError(db.trie.TryUpdate(addr[:], data))
}
// deleteStateObject removes the given object from the state trie.
func (self *StateDB) deleteStateObject(stateObject *stateObject) {
func (db *StateDB) deleteStateObject(stateObject *stateObject) {
stateObject.deleted = true
addr := stateObject.Address()
self.setError(self.trie.TryDelete(addr[:]))
db.setError(db.trie.TryDelete(addr[:]))
}
// Retrieve a state object given by the address. Returns nil if not found.
func (self *StateDB) getStateObject(addr common.Address) (stateObject *stateObject) {
func (db *StateDB) getStateObject(addr common.Address) (stateObject *stateObject) {
// Prefer 'live' objects.
if obj := self.stateObjects[addr]; obj != nil {
if obj := db.stateObjects[addr]; obj != nil {
if obj.deleted {
return nil
}
@ -369,9 +369,9 @@ func (self *StateDB) getStateObject(addr common.Address) (stateObject *stateObje
}
// Load the object from the database.
enc, err := self.trie.TryGet(addr[:])
enc, err := db.trie.TryGet(addr[:])
if len(enc) == 0 {
self.setError(err)
db.setError(err)
return nil
}
var data Account
@ -380,36 +380,36 @@ func (self *StateDB) getStateObject(addr common.Address) (stateObject *stateObje
return nil
}
// Insert into the live set.
obj := newObject(self, addr, data)
self.setStateObject(obj)
obj := newObject(db, addr, data)
db.setStateObject(obj)
return obj
}
func (self *StateDB) setStateObject(object *stateObject) {
self.stateObjects[object.Address()] = object
func (db *StateDB) setStateObject(object *stateObject) {
db.stateObjects[object.Address()] = object
}
// Retrieve a state object or create a new state object if nil.
func (self *StateDB) GetOrNewStateObject(addr common.Address) *stateObject {
stateObject := self.getStateObject(addr)
func (db *StateDB) GetOrNewStateObject(addr common.Address) *stateObject {
stateObject := db.getStateObject(addr)
if stateObject == nil || stateObject.deleted {
stateObject, _ = self.createObject(addr)
stateObject, _ = db.createObject(addr)
}
return stateObject
}
// createObject creates a new state object. If there is an existing account with
// the given address, it is overwritten and returned as the second return value.
func (self *StateDB) createObject(addr common.Address) (newobj, prev *stateObject) {
prev = self.getStateObject(addr)
newobj = newObject(self, addr, Account{})
func (db *StateDB) createObject(addr common.Address) (newobj, prev *stateObject) {
prev = db.getStateObject(addr)
newobj = newObject(db, addr, Account{})
newobj.setNonce(0) // sets the object to dirty
if prev == nil {
self.journal.append(createObjectChange{account: &addr})
db.journal.append(createObjectChange{account: &addr})
} else {
self.journal.append(resetObjectChange{prev: prev})
db.journal.append(resetObjectChange{prev: prev})
}
self.setStateObject(newobj)
db.setStateObject(newobj)
return newobj, prev
}
@ -423,8 +423,8 @@ func (self *StateDB) createObject(addr common.Address) (newobj, prev *stateObjec
// 2. tx_create(sha(account ++ nonce)) (note that this gets the address of 1)
//
// Carrying over the balance ensures that Ether doesn't disappear.
func (self *StateDB) CreateAccount(addr common.Address) {
new, prev := self.createObject(addr)
func (db *StateDB) CreateAccount(addr common.Address) {
new, prev := db.createObject(addr)
if prev != nil {
new.setBalance(prev.data.Balance)
}
@ -453,29 +453,29 @@ func (db *StateDB) ForEachStorage(addr common.Address, cb func(key, value common
// Copy creates a deep, independent copy of the state.
// Snapshots of the copied state cannot be applied to the copy.
func (self *StateDB) Copy() *StateDB {
self.lock.Lock()
defer self.lock.Unlock()
func (db *StateDB) Copy() *StateDB {
db.lock.Lock()
defer db.lock.Unlock()
// Copy all the basic fields, initialize the memory ones
state := &StateDB{
db: self.db,
trie: self.db.CopyTrie(self.trie),
stateObjects: make(map[common.Address]*stateObject, len(self.journal.dirties)),
stateObjectsDirty: make(map[common.Address]struct{}, len(self.journal.dirties)),
refund: self.refund,
logs: make(map[common.Hash][]*types.Log, len(self.logs)),
logSize: self.logSize,
db: db.db,
trie: db.db.CopyTrie(db.trie),
stateObjects: make(map[common.Address]*stateObject, len(db.journal.dirties)),
stateObjectsDirty: make(map[common.Address]struct{}, len(db.journal.dirties)),
refund: db.refund,
logs: make(map[common.Hash][]*types.Log, len(db.logs)),
logSize: db.logSize,
preimages: make(map[common.Hash][]byte),
journal: newJournal(),
}
// Copy the dirty states, logs, and preimages
for addr := range self.journal.dirties {
for addr := range db.journal.dirties {
// As documented [here](https://github.com/ethereum/go-ethereum/pull/16485#issuecomment-380438527),
// and in the Finalise-method, there is a case where an object is in the journal but not
// in the stateObjects: OOG after touch on ripeMD prior to Byzantium. Thus, we need to check for
// nil
if object, exist := self.stateObjects[addr]; exist {
if object, exist := db.stateObjects[addr]; exist {
state.stateObjects[addr] = object.deepCopy(state)
state.stateObjectsDirty[addr] = struct{}{}
}
@ -483,53 +483,53 @@ func (self *StateDB) Copy() *StateDB {
// Above, we don't copy the actual journal. This means that if the copy is copied, the
// loop above will be a no-op, since the copy's journal is empty.
// Thus, here we iterate over stateObjects, to enable copies of copies
for addr := range self.stateObjectsDirty {
for addr := range db.stateObjectsDirty {
if _, exist := state.stateObjects[addr]; !exist {
state.stateObjects[addr] = self.stateObjects[addr].deepCopy(state)
state.stateObjects[addr] = db.stateObjects[addr].deepCopy(state)
state.stateObjectsDirty[addr] = struct{}{}
}
}
for hash, logs := range self.logs {
for hash, logs := range db.logs {
state.logs[hash] = make([]*types.Log, len(logs))
copy(state.logs[hash], logs)
}
for hash, preimage := range self.preimages {
for hash, preimage := range db.preimages {
state.preimages[hash] = preimage
}
return state
}
// Snapshot returns an identifier for the current revision of the state.
func (self *StateDB) Snapshot() int {
id := self.nextRevisionId
self.nextRevisionId++
self.validRevisions = append(self.validRevisions, revision{id, self.journal.length()})
func (db *StateDB) Snapshot() int {
id := db.nextRevisionId
db.nextRevisionId++
db.validRevisions = append(db.validRevisions, revision{id, db.journal.length()})
return id
}
// RevertToSnapshot reverts all state changes made since the given revision.
func (self *StateDB) RevertToSnapshot(revid int) {
func (db *StateDB) RevertToSnapshot(revid int) {
// Find the snapshot in the stack of valid snapshots.
idx := sort.Search(len(self.validRevisions), func(i int) bool {
return self.validRevisions[i].id >= revid
idx := sort.Search(len(db.validRevisions), func(i int) bool {
return db.validRevisions[i].id >= revid
})
if idx == len(self.validRevisions) || self.validRevisions[idx].id != revid {
if idx == len(db.validRevisions) || db.validRevisions[idx].id != revid {
panic(fmt.Errorf("revision id %v cannot be reverted", revid))
}
snapshot := self.validRevisions[idx].journalIndex
snapshot := db.validRevisions[idx].journalIndex
// Replay the journal to undo changes and remove invalidated snapshots
self.journal.revert(self, snapshot)
self.validRevisions = self.validRevisions[:idx]
db.journal.revert(db, snapshot)
db.validRevisions = db.validRevisions[:idx]
}
// GetRefund returns the current value of the refund counter.
func (self *StateDB) GetRefund() uint64 {
return self.refund
func (db *StateDB) GetRefund() uint64 {
return db.refund
}
// Finalise finalises the state by removing the self destructed objects
// Finalise finalises the state by removing the db destructed objects
// and clears the journal as well as the refunds.
func (s *StateDB) Finalise(deleteEmptyObjects bool) {
for addr := range s.journal.dirties {
@ -566,10 +566,10 @@ func (s *StateDB) IntermediateRoot(deleteEmptyObjects bool) common.Hash {
// Prepare sets the current transaction hash and index and block hash which is
// used when the EVM emits new state logs.
func (self *StateDB) Prepare(thash, bhash common.Hash, ti int) {
self.thash = thash
self.bhash = bhash
self.txIndex = ti
func (db *StateDB) Prepare(thash, bhash common.Hash, ti int) {
db.thash = thash
db.bhash = bhash
db.txIndex = ti
}
func (s *StateDB) clearJournalAndRefund() {

12
core/types/block.go
View file

@ -392,10 +392,10 @@ type Blocks []*Block
type BlockBy func(b1, b2 *Block) bool
func (self BlockBy) Sort(blocks Blocks) {
func (by BlockBy) Sort(blocks Blocks) {
bs := blockSorter{
blocks: blocks,
by: self,
by: by,
}
sort.Sort(bs)
}
@ -405,10 +405,10 @@ type blockSorter struct {
by func(b1, b2 *Block) bool
}
func (self blockSorter) Len() int { return len(self.blocks) }
func (self blockSorter) Swap(i, j int) {
self.blocks[i], self.blocks[j] = self.blocks[j], self.blocks[i]
func (b blockSorter) Len() int { return len(b.blocks) }
func (b blockSorter) Swap(i, j int) {
b.blocks[i], b.blocks[j] = b.blocks[j], b.blocks[i]
}
func (self blockSorter) Less(i, j int) bool { return self.by(self.blocks[i], self.blocks[j]) }
func (b blockSorter) Less(i, j int) bool { return b.by(b.blocks[i], b.blocks[j]) }
func Number(b1, b2 *Block) bool { return b1.header.Number.Cmp(b2.header.Number) < 0 }