Removal of manual updating of state objects

* You'll only ever need to update the state by calling Update. Update
  will take care of the updating of it's child state objects.

ethchain/state.go

@@ -38,12 +38,16 @@ func (s *State) Reset() {
 
 		stateObject.state.Reset()
 	}
+
+	s.Empty()
 }
 
 // Syncs the trie and all siblings
 func (s *State) Sync() {
 	// Sync all nested states
 	for _, stateObject := range s.stateObjects {
+		s.UpdateStateObject(stateObject)
+
 		if stateObject.state == nil {
 			continue
 		}
@@ -52,6 +56,18 @@ func (s *State) Sync() {
 	}
 
 	s.trie.Sync()
+
+	s.Empty()
+}
+
+func (self *State) Empty() {
+	self.stateObjects = make(map[string]*StateObject)
+}
+
+func (self *State) Update() {
+	for _, stateObject := range self.stateObjects {
+		self.UpdateStateObject(stateObject)
+	}
 }
 
 // Purges the current trie.
@@ -68,6 +84,7 @@ func (self *State) UpdateStateObject(stateObject *StateObject) {
 	addr := stateObject.Address()
 
 	if self.stateObjects[string(addr)] == nil {
+		panic("?")
 		self.stateObjects[string(addr)] = stateObject
 	}
 
@@ -98,13 +115,19 @@ func (self *State) GetStateObject(addr []byte) *StateObject {
 func (self *State) GetOrNewStateObject(addr []byte) *StateObject {
 	stateObject := self.GetStateObject(addr)
 	if stateObject == nil {
-		stateObject = NewStateObject(addr)
-		self.stateObjects[string(addr)] = stateObject
+		stateObject = self.NewStateObject(addr)
 	}
 
 	return stateObject
 }
 
+func (self *State) NewStateObject(addr []byte) *StateObject {
+	stateObject := NewStateObject(addr)
+	self.stateObjects[string(addr)] = stateObject
+
+	return stateObject
+}
+
 func (self *State) GetAccount(addr []byte) *StateObject {
 	return self.GetOrNewStateObject(addr)
 }