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core/state: unified function receiver names (#19615)

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This commit is contained in:
Mohanson 2019-05-26 05:52:10 +08:00 committed by Péter Szilágyi
parent 2cd6059e51
commit 4b622b277e
1 changed files with 118 additions and 118 deletions
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236
core/state/state_object.go
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@ -33,23 +33,23 @@ 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
}
@ -123,210 +123,210 @@ func newObject(db *StateDB, address common.Address, data Account) *stateObject {
}
// EncodeRLP implements rlp.Encoder.
func (c *stateObject) EncodeRLP(w io.Writer) error {
return rlp.Encode(w, c.data)
func (s *stateObject) EncodeRLP(w io.Writer) error {
return rlp.Encode(w, s.data)
}
// 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 (s *stateObject) setError(err error) {
if s.dbErr == nil {
s.dbErr = err
}
}
func (self *stateObject) markSuicided() {
self.suicided = true
func (s *stateObject) markSuicided() {
s.suicided = true
}
func (c *stateObject) touch() {
c.db.journal.append(touchChange{
account: &c.address,
func (s *stateObject) touch() {
s.db.journal.append(touchChange{
account: &s.address,
})
if c.address == ripemd {
if s.address == ripemd {
// Explicitly put it in the dirty-cache, which is otherwise generated from
// flattened journals.
c.db.journal.dirty(c.address)
s.db.journal.dirty(s.address)
}
}
func (c *stateObject) getTrie(db Database) Trie {
if c.trie == nil {
func (s *stateObject) getTrie(db Database) Trie {
if s.trie == nil {
var err error
c.trie, err = db.OpenStorageTrie(c.addrHash, c.data.Root)
s.trie, err = db.OpenStorageTrie(s.addrHash, s.data.Root)
if err != nil {
c.trie, _ = db.OpenStorageTrie(c.addrHash, common.Hash{})
c.setError(fmt.Errorf("can't create storage trie: %v", err))
s.trie, _ = db.OpenStorageTrie(s.addrHash, common.Hash{})
s.setError(fmt.Errorf("can't create storage trie: %v", err))
}
}
return c.trie
return s.trie
}
// GetState retrieves a value from the account storage trie.
func (self *stateObject) GetState(db Database, key common.Hash) common.Hash {
func (s *stateObject) GetState(db Database, key common.Hash) common.Hash {
// If we have a dirty value for this state entry, return it
value, dirty := self.dirtyStorage[key]
value, dirty := s.dirtyStorage[key]
if dirty {
return value
}
// Otherwise return the entry's original value
return self.GetCommittedState(db, key)
return s.GetCommittedState(db, key)
}
// GetCommittedState retrieves a value from the committed account storage trie.
func (self *stateObject) GetCommittedState(db Database, key common.Hash) common.Hash {
func (s *stateObject) GetCommittedState(db Database, key common.Hash) common.Hash {
// If we have the original value cached, return that
value, cached := self.originStorage[key]
value, cached := s.originStorage[key]
if cached {
return value
}
// Track the amount of time wasted on reading the storge trie
if metrics.EnabledExpensive {
defer func(start time.Time) { self.db.StorageReads += time.Since(start) }(time.Now())
defer func(start time.Time) { s.db.StorageReads += time.Since(start) }(time.Now())
}
// Otherwise load the value from the database
enc, err := self.getTrie(db).TryGet(key[:])
enc, err := s.getTrie(db).TryGet(key[:])
if err != nil {
self.setError(err)
s.setError(err)
return common.Hash{}
}
if len(enc) > 0 {
_, content, _, err := rlp.Split(enc)
if err != nil {
self.setError(err)
s.setError(err)
}
value.SetBytes(content)
}
self.originStorage[key] = value
s.originStorage[key] = value
return value
}
// SetState updates a value in account storage.
func (self *stateObject) SetState(db Database, key, value common.Hash) {
func (s *stateObject) SetState(db Database, key, value common.Hash) {
// If the new value is the same as old, don't set
prev := self.GetState(db, key)
prev := s.GetState(db, key)
if prev == value {
return
}
// New value is different, update and journal the change
self.db.journal.append(storageChange{
account: &self.address,
s.db.journal.append(storageChange{
account: &s.address,
key: key,
prevalue: prev,
})
self.setState(key, value)
s.setState(key, value)
}
func (self *stateObject) setState(key, value common.Hash) {
self.dirtyStorage[key] = value
func (s *stateObject) setState(key, value common.Hash) {
s.dirtyStorage[key] = value
}
// updateTrie writes cached storage modifications into the object's storage trie.
func (self *stateObject) updateTrie(db Database) Trie {
func (s *stateObject) updateTrie(db Database) Trie {
// Track the amount of time wasted on updating the storge trie
if metrics.EnabledExpensive {
defer func(start time.Time) { self.db.StorageUpdates += time.Since(start) }(time.Now())
defer func(start time.Time) { s.db.StorageUpdates += time.Since(start) }(time.Now())
}
// Update all the dirty slots in the trie
tr := self.getTrie(db)
for key, value := range self.dirtyStorage {
delete(self.dirtyStorage, key)
tr := s.getTrie(db)
for key, value := range s.dirtyStorage {
delete(s.dirtyStorage, key)
// Skip noop changes, persist actual changes
if value == self.originStorage[key] {
if value == s.originStorage[key] {
continue
}
self.originStorage[key] = value
s.originStorage[key] = value
if (value == common.Hash{}) {
self.setError(tr.TryDelete(key[:]))
s.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))
s.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)
func (s *stateObject) updateRoot(db Database) {
s.updateTrie(db)
// Track the amount of time wasted on hashing the storge trie
if metrics.EnabledExpensive {
defer func(start time.Time) { self.db.StorageHashes += time.Since(start) }(time.Now())
defer func(start time.Time) { s.db.StorageHashes += time.Since(start) }(time.Now())
}
self.data.Root = self.trie.Hash()
s.data.Root = s.trie.Hash()
}
// CommitTrie the storage trie of the object to db.
// This updates the trie root.
func (self *stateObject) CommitTrie(db Database) error {
self.updateTrie(db)
if self.dbErr != nil {
return self.dbErr
func (s *stateObject) CommitTrie(db Database) error {
s.updateTrie(db)
if s.dbErr != nil {
return s.dbErr
}
// Track the amount of time wasted on committing the storge trie
if metrics.EnabledExpensive {
defer func(start time.Time) { self.db.StorageCommits += time.Since(start) }(time.Now())
defer func(start time.Time) { s.db.StorageCommits += time.Since(start) }(time.Now())
}
root, err := self.trie.Commit(nil)
root, err := s.trie.Commit(nil)
if err == nil {
self.data.Root = root
s.data.Root = root
}
return err
}
// AddBalance removes amount from c's balance.
// It is used to add funds to the destination account of a transfer.
func (c *stateObject) AddBalance(amount *big.Int) {
func (s *stateObject) AddBalance(amount *big.Int) {
// EIP158: We must check emptiness for the objects such that the account
// clearing (0,0,0 objects) can take effect.
if amount.Sign() == 0 {
if c.empty() {
c.touch()
if s.empty() {
s.touch()
}
return
}
c.SetBalance(new(big.Int).Add(c.Balance(), amount))
s.SetBalance(new(big.Int).Add(s.Balance(), amount))
}
// SubBalance removes amount from c's balance.
// It is used to remove funds from the origin account of a transfer.
func (c *stateObject) SubBalance(amount *big.Int) {
func (s *stateObject) SubBalance(amount *big.Int) {
if amount.Sign() == 0 {
return
}
c.SetBalance(new(big.Int).Sub(c.Balance(), amount))
s.SetBalance(new(big.Int).Sub(s.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 (s *stateObject) SetBalance(amount *big.Int) {
s.db.journal.append(balanceChange{
account: &s.address,
prev: new(big.Int).Set(s.data.Balance),
})
self.setBalance(amount)
s.setBalance(amount)
}
func (self *stateObject) setBalance(amount *big.Int) {
self.data.Balance = amount
func (s *stateObject) setBalance(amount *big.Int) {
s.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 (s *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 (s *stateObject) deepCopy(db *StateDB) *stateObject {
stateObject := newObject(db, s.address, s.data)
if s.trie != nil {
stateObject.trie = db.db.CopyTrie(s.trie)
}
stateObject.code = self.code
stateObject.dirtyStorage = self.dirtyStorage.Copy()
stateObject.originStorage = self.originStorage.Copy()
stateObject.suicided = self.suicided
stateObject.dirtyCode = self.dirtyCode
stateObject.deleted = self.deleted
stateObject.code = s.code
stateObject.dirtyStorage = s.dirtyStorage.Copy()
stateObject.originStorage = s.originStorage.Copy()
stateObject.suicided = s.suicided
stateObject.dirtyCode = s.dirtyCode
stateObject.deleted = s.deleted
return stateObject
}
@ -335,69 +335,69 @@ func (self *stateObject) deepCopy(db *StateDB) *stateObject {
//
// Returns the address of the contract/account
func (c *stateObject) Address() common.Address {
return c.address
func (s *stateObject) Address() common.Address {
return s.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 (s *stateObject) Code(db Database) []byte {
if s.code != nil {
return s.code
}
if bytes.Equal(self.CodeHash(), emptyCodeHash) {
if bytes.Equal(s.CodeHash(), emptyCodeHash) {
return nil
}
code, err := db.ContractCode(self.addrHash, common.BytesToHash(self.CodeHash()))
code, err := db.ContractCode(s.addrHash, common.BytesToHash(s.CodeHash()))
if err != nil {
self.setError(fmt.Errorf("can't load code hash %x: %v", self.CodeHash(), err))
s.setError(fmt.Errorf("can't load code hash %x: %v", s.CodeHash(), err))
}
self.code = code
s.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 (s *stateObject) SetCode(codeHash common.Hash, code []byte) {
prevcode := s.Code(s.db.db)
s.db.journal.append(codeChange{
account: &s.address,
prevhash: s.CodeHash(),
prevcode: prevcode,
})
self.setCode(codeHash, code)
s.setCode(codeHash, code)
}
func (self *stateObject) setCode(codeHash common.Hash, code []byte) {
self.code = code
self.data.CodeHash = codeHash[:]
self.dirtyCode = true
func (s *stateObject) setCode(codeHash common.Hash, code []byte) {
s.code = code
s.data.CodeHash = codeHash[:]
s.dirtyCode = true
}
func (self *stateObject) SetNonce(nonce uint64) {
self.db.journal.append(nonceChange{
account: &self.address,
prev: self.data.Nonce,
func (s *stateObject) SetNonce(nonce uint64) {
s.db.journal.append(nonceChange{
account: &s.address,
prev: s.data.Nonce,
})
self.setNonce(nonce)
s.setNonce(nonce)
}
func (self *stateObject) setNonce(nonce uint64) {
self.data.Nonce = nonce
func (s *stateObject) setNonce(nonce uint64) {
s.data.Nonce = nonce
}
func (self *stateObject) CodeHash() []byte {
return self.data.CodeHash
func (s *stateObject) CodeHash() []byte {
return s.data.CodeHash
}
func (self *stateObject) Balance() *big.Int {
return self.data.Balance
func (s *stateObject) Balance() *big.Int {
return s.data.Balance
}
func (self *stateObject) Nonce() uint64 {
return self.data.Nonce
func (s *stateObject) Nonce() uint64 {
return s.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 (s *stateObject) Value() *big.Int {
panic("Value on stateObject should never be called")
}