ethstate => state

1 files changed, 0 insertions, 321 deletions

diff --git a/ethstate/state.go b/ethstate/state.go
deleted file mode 100644
index 9025194e5..000000000
--- a/ethstate/state.go
+++ /dev/null
@@ -1,321 +0,0 @@
-package ethstate
-
-import (
-	"math/big"
-
-	"github.com/ethereum/go-ethereum/ethtrie"
-	"github.com/ethereum/go-ethereum/ethutil"
-	"github.com/ethereum/go-ethereum/logger"
-)
-
-var statelogger = logger.NewLogger("STATE")
-
-// States within the ethereum protocol are used to store anything
-// within the merkle trie. States take care of caching and storing
-// nested states. It's the general query interface to retrieve:
-// * Contracts
-// * Accounts
-type State struct {
-	// The trie for this structure
-	Trie *ethtrie.Trie
-
-	stateObjects map[string]*StateObject
-
-	manifest *Manifest
-
-	refund map[string]*big.Int
-
-	logs Logs
-}
-
-// Create a new state from a given trie
-func New(trie *ethtrie.Trie) *State {
-	return &State{Trie: trie, stateObjects: make(map[string]*StateObject), manifest: NewManifest(), refund: make(map[string]*big.Int)}
-}
-
-func (self *State) EmptyLogs() {
-	self.logs = nil
-}
-
-func (self *State) AddLog(log Log) {
-	self.logs = append(self.logs, log)
-}
-
-func (self *State) Logs() Logs {
-	return self.logs
-}
-
-// Retrieve the balance from the given address or 0 if object not found
-func (self *State) GetBalance(addr []byte) *big.Int {
-	stateObject := self.GetStateObject(addr)
-	if stateObject != nil {
-		return stateObject.balance
-	}
-
-	return ethutil.Big0
-}
-
-func (self *State) Refund(addr []byte, gas, price *big.Int) {
-	amount := new(big.Int).Mul(gas, price)
-
-	if self.refund[string(addr)] == nil {
-		self.refund[string(addr)] = new(big.Int)
-	}
-
-	self.refund[string(addr)] = new(big.Int).Add(self.refund[string(addr)], amount)
-}
-
-func (self *State) AddBalance(addr []byte, amount *big.Int) {
-	stateObject := self.GetStateObject(addr)
-	if stateObject != nil {
-		stateObject.AddBalance(amount)
-	}
-}
-
-func (self *State) GetNonce(addr []byte) uint64 {
-	stateObject := self.GetStateObject(addr)
-	if stateObject != nil {
-		return stateObject.Nonce
-	}
-
-	return 0
-}
-
-func (self *State) SetNonce(addr []byte, nonce uint64) {
-	stateObject := self.GetStateObject(addr)
-	if stateObject != nil {
-		stateObject.Nonce = nonce
-	}
-}
-
-func (self *State) GetCode(addr []byte) []byte {
-	stateObject := self.GetStateObject(addr)
-	if stateObject != nil {
-		return stateObject.Code
-	}
-
-	return nil
-}
-
-func (self *State) GetState(a, b []byte) []byte {
-	stateObject := self.GetStateObject(a)
-	if stateObject != nil {
-		return stateObject.GetState(b).Bytes()
-	}
-
-	return nil
-}
-
-func (self *State) SetState(addr, key []byte, value interface{}) {
-	stateObject := self.GetStateObject(addr)
-	if stateObject != nil {
-		stateObject.SetState(key, ethutil.NewValue(value))
-	}
-}
-
-func (self *State) Delete(addr []byte) bool {
-	stateObject := self.GetStateObject(addr)
-	if stateObject != nil {
-		stateObject.MarkForDeletion()
-
-		return true
-	}
-
-	return false
-}
-
-//
-// Setting, updating & deleting state object methods
-//
-
-// Update the given state object and apply it to state trie
-func (self *State) UpdateStateObject(stateObject *StateObject) {
-	addr := stateObject.Address()
-
-	if len(stateObject.CodeHash()) > 0 {
-		ethutil.Config.Db.Put(stateObject.CodeHash(), stateObject.Code)
-	}
-
-	self.Trie.Update(string(addr), string(stateObject.RlpEncode()))
-}
-
-// Delete the given state object and delete it from the state trie
-func (self *State) DeleteStateObject(stateObject *StateObject) {
-	self.Trie.Delete(string(stateObject.Address()))
-
-	delete(self.stateObjects, string(stateObject.Address()))
-}
-
-// Retrieve a state object given my the address. Nil if not found
-func (self *State) GetStateObject(addr []byte) *StateObject {
-	addr = ethutil.Address(addr)
-
-	stateObject := self.stateObjects[string(addr)]
-	if stateObject != nil {
-		return stateObject
-	}
-
-	data := self.Trie.Get(string(addr))
-	if len(data) == 0 {
-		return nil
-	}
-
-	stateObject = NewStateObjectFromBytes(addr, []byte(data))
-	self.SetStateObject(stateObject)
-
-	return stateObject
-}
-
-func (self *State) SetStateObject(object *StateObject) {
-	self.stateObjects[string(object.address)] = object
-}
-
-// Retrieve a state object or create a new state object if nil
-func (self *State) GetOrNewStateObject(addr []byte) *StateObject {
-	stateObject := self.GetStateObject(addr)
-	if stateObject == nil {
-		stateObject = self.NewStateObject(addr)
-	}
-
-	return stateObject
-}
-
-// Create a state object whether it exist in the trie or not
-func (self *State) NewStateObject(addr []byte) *StateObject {
-	addr = ethutil.Address(addr)
-
-	statelogger.Debugf("(+) %x\n", addr)
-
-	stateObject := NewStateObject(addr)
-	self.stateObjects[string(addr)] = stateObject
-
-	return stateObject
-}
-
-// Deprecated
-func (self *State) GetAccount(addr []byte) *StateObject {
-	return self.GetOrNewStateObject(addr)
-}
-
-//
-// Setting, copying of the state methods
-//
-
-func (s *State) Cmp(other *State) bool {
-	return s.Trie.Cmp(other.Trie)
-}
-
-func (self *State) Copy() *State {
-	if self.Trie != nil {
-		state := New(self.Trie.Copy())
-		for k, stateObject := range self.stateObjects {
-			state.stateObjects[k] = stateObject.Copy()
-		}
-
-		for addr, refund := range self.refund {
-			state.refund[addr] = refund
-		}
-
-		logs := make(Logs, len(self.logs))
-		copy(logs, self.logs)
-		state.logs = logs
-
-		return state
-	}
-
-	return nil
-}
-
-func (self *State) Set(state *State) {
-	if state == nil {
-		panic("Tried setting 'state' to nil through 'Set'")
-	}
-
-	self.Trie = state.Trie
-	self.stateObjects = state.stateObjects
-	self.refund = state.refund
-	self.logs = state.logs
-}
-
-func (s *State) Root() interface{} {
-	return s.Trie.Root
-}
-
-// Resets the trie and all siblings
-func (s *State) Reset() {
-	s.Trie.Undo()
-
-	// Reset all nested states
-	for _, stateObject := range s.stateObjects {
-		if stateObject.State == nil {
-			continue
-		}
-
-		//stateObject.state.Reset()
-		stateObject.Reset()
-	}
-
-	s.Empty()
-}
-
-// Syncs the trie and all siblings
-func (s *State) Sync() {
-	// Sync all nested states
-	for _, stateObject := range s.stateObjects {
-		if stateObject.State == nil {
-			continue
-		}
-
-		stateObject.State.Sync()
-	}
-
-	s.Trie.Sync()
-
-	s.Empty()
-}
-
-func (self *State) Empty() {
-	self.stateObjects = make(map[string]*StateObject)
-	self.refund = make(map[string]*big.Int)
-}
-
-func (self *State) Update() {
-	var deleted bool
-
-	// Refund any gas that's left
-	for addr, amount := range self.refund {
-		self.GetStateObject([]byte(addr)).AddBalance(amount)
-	}
-
-	for _, stateObject := range self.stateObjects {
-		if stateObject.remove {
-			self.DeleteStateObject(stateObject)
-			deleted = true
-		} else {
-			stateObject.Sync()
-
-			self.UpdateStateObject(stateObject)
-		}
-	}
-
-	// FIXME trie delete is broken
-	if deleted {
-		valid, t2 := ethtrie.ParanoiaCheck(self.Trie)
-		if !valid {
-			statelogger.Infof("Warn: PARANOIA: Different state root during copy %x vs %x\n", self.Trie.Root, t2.Root)
-
-			self.Trie = t2
-		}
-	}
-}
-
-func (self *State) Manifest() *Manifest {
-	return self.manifest
-}
-
-// Debug stuff
-func (self *State) CreateOutputForDiff() {
-	for _, stateObject := range self.stateObjects {
-		stateObject.CreateOutputForDiff()
-	}
-}