Method getStateObject

core/state/statedb.go:362–386

Retrieve a state object given by the address. Returns nil if not found.

(addr common.Address)

// Retrieve a state object given by the address. Returns nil if not found.
func (self *StateDB) getStateObject(addr common.Address) (stateObject *stateObject) {
	// Prefer 'live' objects.
	if obj := self.stateObjects[addr]; obj != nil {
		if obj.deleted {
			return nil
		}
		return obj
	}

	// Load the object from the database.
	enc, err := self.trie.TryGet(addr[:])
	if len(enc) == 0 {
		self.setError(err)
		return nil
	}
	var data Account
	if err := rlp.DecodeBytes(enc, &data); err != nil {
		log.Error("Failed to decode state object", "addr", addr, "err", err)
		return nil
	}
	// Insert into the live set.
	obj := newObject(self, addr, data)
	self.setStateObject(obj)
	return obj
}

func (self *StateDB) setStateObject(object *stateObject) {
	self.stateObjects[object.Address()] = object