add Destroy UTXO payload

core/store/ChainStore/ChainStore.go

@@ -773,7 +773,8 @@ func (bd *ChainStore) persist(b *Block) error {
 			b.Transactions[i].TxType == tx.BookKeeper ||
 			b.Transactions[i].TxType == tx.PrivacyPayload ||
 			b.Transactions[i].TxType == tx.BookKeeping ||
-			b.Transactions[i].TxType == tx.DataFile {
+			b.Transactions[i].TxType == tx.DataFile ||
+			b.Transactions[i].TxType == tx.DestroyUTXO {
 			err = bd.SaveTransaction(b.Transactions[i], b.Blockdata.Height)
 			if err != nil {
 				return err
@@ -798,6 +799,16 @@ func (bd *ChainStore) persist(b *Block) error {
 			}
 		}
 
+		if b.Transactions[i].TxType == tx.DestroyUTXO {
+			results, err := b.Transactions[i].GetMergedAssetIDValueFromReference()
+			if err != nil {
+				log.Error("[GetMergedAssetIDValueFromReference] failed.")
+			}
+			for assetId, value := range results {
+				quantities[assetId] -= value
+			}
+		}
+
 		for index := 0; index < len(b.Transactions[i].Outputs); index++ {
 			output := b.Transactions[i].Outputs[index]
 			programHash := output.ProgramHash

core/transaction/TransactionBuilder.go

@@ -142,3 +142,19 @@ func NewDataFileTransaction(path string, fileName string, note string, issuer *c
 		Programs:      []*program.Program{},
 	}, nil
 }
+
+func NewDestroyUTXOTransaction(inputs []*UTXOTxInput) (*Transaction, error) {
+
+	//TODO: check arguments
+
+	destroyUTXO := &payload.DestroyUTXO{}
+
+	return &Transaction{
+		TxType:        DestroyUTXO,
+		Payload:       destroyUTXO,
+		Attributes:    []*TxAttribute{},
+		UTXOInputs:    inputs,
+		BalanceInputs: []*BalanceTxInput{},
+		Programs:      []*program.Program{},
+	}, nil
+}

core/transaction/payload/DestroyUTXO.go

@@ -0,0 +1,20 @@
+package payload
+
+import "io"
+
+type DestroyUTXO struct {
+}
+
+func (a *DestroyUTXO) Data(version byte) []byte {
+	//TODO: implement TransferAsset.Data()
+	return []byte{0}
+
+}
+
+func (a *DestroyUTXO) Serialize(w io.Writer, version byte) error {
+	return nil
+}
+
+func (a *DestroyUTXO) Deserialize(r io.Reader, version byte) error {
+	return nil
+}

core/transaction/transaction.go

@@ -30,6 +30,7 @@ const (
 	Record         TransactionType = 0x81
 	DeployCode     TransactionType = 0xd0
 	DataFile       TransactionType = 0x12
+	DestroyUTXO    TransactionType = 0x18
 )
 
 //Payload define the func for loading the payload data
@@ -200,6 +201,8 @@ func (tx *Transaction) DeserializeUnsignedWithoutType(r io.Reader) error {
 		tx.Payload = new(payload.PrivacyPayload)
 	case DataFile:
 		tx.Payload = new(payload.DataFile)
+	case DestroyUTXO:
+		tx.Payload = new(payload.DestroyUTXO)
 	default:
 		return errors.New("[Transaction],invalide transaction type.")
 	}
@@ -293,9 +296,6 @@ func (tx *Transaction) GetProgramHashes() ([]Uint160, error) {
 		hashs = append(hashs, astHash)
 	case IssueAsset:
 		result := tx.GetMergedAssetIDValueFromOutputs()
-		if err != nil {
-			return nil, NewDetailErr(err, ErrNoCode, "[Transaction], GetTransactionResults failed.")
-		}
 		for k := range result {
 			tx, err := TxStore.GetTransaction(k)
 			if err != nil {
@@ -339,6 +339,27 @@ func (tx *Transaction) GetProgramHashes() ([]Uint160, error) {
 			return nil, NewDetailErr(err, ErrNoCode, "[Transaction], GetProgramHashes ToCodeHash failed.")
 		}
 		hashs = append(hashs, astHash)
+	case DestroyUTXO:
+		inputs, err := tx.GetMergedAssetIDValueFromReference()
+		if err != nil {
+			return nil, NewDetailErr(err, ErrNoCode, "[Transaction], GetTransactionInputs failed.")
+		}
+		for k := range inputs {
+			tx, err := TxStore.GetTransaction(k)
+			if err != nil {
+				return nil, NewDetailErr(err, ErrNoCode, fmt.Sprintf("[Transaction], GetTransaction failed With AssetID:=%x", k))
+			}
+			if tx.TxType != RegisterAsset {
+				return nil, NewDetailErr(errors.New("[Transaction] error"), ErrNoCode, fmt.Sprintf("[Transaction], Transaction Type ileage With AssetID:=%x", k))
+			}
+
+			switch v1 := tx.Payload.(type) {
+			case *payload.RegisterAsset:
+				hashs = append(hashs, v1.Controller)
+			default:
+				return nil, NewDetailErr(errors.New("[Transaction] error"), ErrNoCode, fmt.Sprintf("[Transaction], payload is illegal", k))
+			}
+		}
 	default:
 	}
 	//remove dupilicated hashes

core/validation/txValidator.go

@@ -31,11 +31,11 @@ func VerifyTransaction(Tx *tx.Transaction) error {
 		return err
 	}
 
-	if err := CheckTransactionContracts(Tx); err != nil {
+	if err := CheckTransactionPayload(Tx); err != nil {
 		return err
 	}
 
-	if err := CheckTransactionPayload(Tx); err != nil {
+	if err := CheckTransactionContracts(Tx); err != nil {
 		return err
 	}
 
@@ -192,10 +192,7 @@ func CheckTransactionBalance(Tx *tx.Transaction) error {
 			return errors.New("Invalide transaction UTXO output.")
 		}
 	}
-	if Tx.TxType == tx.IssueAsset {
-		if len(Tx.UTXOInputs) > 0 {
-			return errors.New("Invalide Issue transaction.")
-		}
+	if Tx.TxType == tx.IssueAsset || Tx.TxType == tx.DestroyUTXO {
 		return nil
 	}
 	results, err := Tx.GetTransactionResults()
@@ -238,20 +235,27 @@ func CheckTransactionPayload(Tx *tx.Transaction) error {
 		return nil
 	case *payload.RegisterAsset:
 		if pld.Asset.Precision < asset.MinPrecision || pld.Asset.Precision > asset.MaxPrecision {
-			return errors.New("Invalide asset Precision.")
+			return errors.New("[CheckTransactionPayload],invalid asset Precision.")
 		}
 		if checkAmountPrecise(pld.Amount, pld.Asset.Precision) {
-			return errors.New("Invalide asset value,out of precise.")
+			return errors.New("[CheckTransactionPayload],invalid asset value,out of precise.")
 		}
 	case *payload.IssueAsset:
+		if len(Tx.UTXOInputs) > 0 {
+			return errors.New("Invalide Issue transaction.")
+		}
 	case *payload.TransferAsset:
 	case *payload.BookKeeping:
 	case *payload.PrivacyPayload:
 	case *payload.Record:
 	case *payload.DeployCode:
 	case *payload.DataFile:
+	case *payload.DestroyUTXO:
+		if len(Tx.Outputs) > 0 {
+			return errors.New("[CheckTransactionPayload],invalid transaction outputs.")
+		}
 	default:
-		return errors.New("[txValidator],invalidate transaction payload type.")
+		return errors.New("[CheckTransactionPayload],invalid transaction payload type.")
 	}
 	return nil
 }

net/httpjsonrpc/TransPayloadToHex.go

@@ -137,6 +137,7 @@ func TransPayloadToHex(p Payload) PayloadInfo {
 		obj.Issuer.X = object.Issuer.X.String()
 		obj.Issuer.Y = object.Issuer.Y.String()
 		return obj
+	case *payload.DestroyUTXO:
 	}
 	return nil
 }