func TestEmptyTrie(t *testing.T) {
trie := NewEmpty()
res := trie.Hash()
exp := crypto.Sha3(common.Encode(""))
if !bytes.Equal(res, exp) {
t.Errorf("expected %x got %x", exp, res)
}
}
func (self *Trie) Hash() []byte {
var hash []byte
if self.root != nil {
t := self.root.Hash()
if byts, ok := t.([]byte); ok && len(byts) > 0 {
hash = byts
} else {
hash = crypto.Sha3(common.Encode(self.root.RlpData()))
}
} else {
hash = crypto.Sha3(common.Encode(""))
}
if !bytes.Equal(hash, self.roothash) {
self.revisions.PushBack(self.roothash)
self.roothash = hash
}
return hash
}
func (self *Trie) store(node Node) interface{} {
data := common.Encode(node)
if len(data) >= 32 {
key := crypto.Sha3(data)
if node.Dirty() {
//fmt.Println("save", node)
//fmt.Println()
self.cache.Put(key, data)
}
return key
}
return node.RlpData()
}
// State object encoding methods
func (c *StateObject) RlpEncode() []byte {
return common.Encode([]interface{}{c.nonce, c.balance, c.Root(), c.CodeHash()})
}