4 "github.com/vapor/consensus"
5 "github.com/vapor/protocol/bc"
6 "github.com/vapor/protocol/vm"
7 "github.com/vapor/protocol/vm/vmutil"
10 // MapTx converts a types TxData object into its entries-based
12 func MapTx(oldTx *TxData) *bc.Tx {
13 txID, txHeader, entries := mapTx(oldTx)
18 InputIDs: make([]bc.Hash, len(oldTx.Inputs)),
21 spentOutputIDs := make(map[bc.Hash]bool)
22 for id, e := range entries {
24 switch e := e.(type) {
30 spentOutputIDs[*e.SpentOutputId] = true
31 if *e.WitnessDestination.Value.AssetId == *consensus.BTMAssetID {
32 tx.GasInputIDs = append(tx.GasInputIDs, id)
37 tx.GasInputIDs = append(tx.GasInputIDs, id)
43 if ord >= uint64(len(oldTx.Inputs)) {
49 for id := range spentOutputIDs {
50 tx.SpentOutputIDs = append(tx.SpentOutputIDs, id)
55 func mapTx(tx *TxData) (headerID bc.Hash, hdr *bc.TxHeader, entryMap map[bc.Hash]bc.Entry) {
56 entryMap = make(map[bc.Hash]bc.Entry)
57 addEntry := func(e bc.Entry) bc.Hash {
65 issuances []*bc.Issuance
69 muxSources := make([]*bc.ValueSource, len(tx.Inputs))
70 for i, input := range tx.Inputs {
71 switch inp := input.TypedInput.(type) {
73 nonceHash := inp.NonceHash()
74 assetDefHash := inp.AssetDefinitionHash()
75 value := input.AssetAmount()
77 issuance := bc.NewIssuance(&nonceHash, &value, uint64(i))
78 issuance.WitnessAssetDefinition = &bc.AssetDefinition{
80 IssuanceProgram: &bc.Program{
81 VmVersion: inp.VMVersion,
82 Code: inp.IssuanceProgram,
85 issuance.WitnessArguments = inp.Arguments
86 issuanceID := addEntry(issuance)
88 muxSources[i] = &bc.ValueSource{
92 issuances = append(issuances, issuance)
95 // create entry for prevout
96 prog := &bc.Program{VmVersion: inp.VMVersion, Code: inp.ControlProgram}
97 src := &bc.ValueSource{
99 Value: &inp.AssetAmount,
100 Position: inp.SourcePosition,
102 prevout := bc.NewOutput(src, prog, 0) // ordinal doesn't matter for prevouts, only for result outputs
103 prevoutID := addEntry(prevout)
104 // create entry for spend
105 spend := bc.NewSpend(&prevoutID, uint64(i))
106 spend.WitnessArguments = inp.Arguments
107 spendID := addEntry(spend)
109 muxSources[i] = &bc.ValueSource{
111 Value: &inp.AssetAmount,
113 spends = append(spends, spend)
116 coinbase = bc.NewCoinbase(inp.Arbitrary)
117 coinbaseID := addEntry(coinbase)
120 muxSources[i] = &bc.ValueSource{
122 Value: &out.AssetAmount,
127 mux := bc.NewMux(muxSources, &bc.Program{VmVersion: 1, Code: []byte{byte(vm.OP_TRUE)}})
128 muxID := addEntry(mux)
130 // connect the inputs to the mux
131 for _, spend := range spends {
132 spentOutput := entryMap[*spend.SpentOutputId].(*bc.Output)
133 spend.SetDestination(&muxID, spentOutput.Source.Value, spend.Ordinal)
135 for _, issuance := range issuances {
136 issuance.SetDestination(&muxID, issuance.Value, issuance.Ordinal)
140 coinbase.SetDestination(&muxID, mux.Sources[0].Value, 0)
143 // convert types.outputs to the bc.output
144 var resultIDs []*bc.Hash
145 for i, out := range tx.Outputs {
146 src := &bc.ValueSource{
148 Value: &out.AssetAmount,
152 if vmutil.IsUnspendable(out.ControlProgram) {
154 r := bc.NewRetirement(src, uint64(i))
155 resultID = addEntry(r)
158 prog := &bc.Program{out.VMVersion, out.ControlProgram}
159 o := bc.NewOutput(src, prog, uint64(i))
160 resultID = addEntry(o)
163 dest := &bc.ValueDestination{
168 resultIDs = append(resultIDs, &resultID)
169 mux.WitnessDestinations = append(mux.WitnessDestinations, dest)
172 h := bc.NewTxHeader(tx.Version, tx.SerializedSize, tx.TimeRange, resultIDs)
173 return addEntry(h), h, entryMap
176 func mapBlockHeader(old *BlockHeader) (bc.Hash, *bc.BlockHeader) {
177 bh := bc.NewBlockHeader(old.Version, old.Height, &old.PreviousBlockHash, old.Timestamp, &old.TransactionsMerkleRoot, &old.TransactionStatusHash)
178 return bc.EntryID(bh), bh
181 // MapBlock converts a types block to bc block
182 func MapBlock(old *Block) *bc.Block {
188 b.ID, b.BlockHeader = mapBlockHeader(&old.BlockHeader)
189 for _, oldTx := range old.Transactions {
190 b.Transactions = append(b.Transactions, oldTx.Tx)