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fix: implement ToPlutusData() for pre-Alonzo TX outputs #1180

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Merged
merged 1 commit into from
Sep 7, 2025
Merged

fix: implement ToPlutusData() for pre-Alonzo TX outputs #1180

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2 changes: 0 additions & 2 deletions ledger/alonzo/alonzo.go
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Original file line number Diff line number Diff line change
Expand Up @@ -372,10 +372,8 @@ func (o AlonzoTransactionOutput) ToPlutusData() data.PlutusData {
o.OutputAddress.ToPlutusData(),
data.NewMap(valueData),
// Empty datum option
// TODO: implement this
data.NewConstr(0),
// Empty script ref
// TODO: implement this
data.NewConstr(1),
)
return tmpData
Expand Down
31 changes: 29 additions & 2 deletions ledger/byron/byron.go
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Original file line number Diff line number Diff line change
Expand Up @@ -422,8 +422,35 @@ func (o *ByronTransactionOutput) UnmarshalCBOR(data []byte) error {
}

func (o ByronTransactionOutput) ToPlutusData() data.PlutusData {
// A Byron transaction output will never be used for Plutus scripts
return nil
var valueData [][2]data.PlutusData
if o.OutputAmount > 0 {
valueData = append(
valueData,
[2]data.PlutusData{
data.NewByteString(nil),
data.NewMap(
[][2]data.PlutusData{
{
data.NewByteString(nil),
data.NewInteger(
new(big.Int).SetUint64(o.OutputAmount),
),
},
},
),
},
)
}
tmpData := data.NewConstr(
0,
o.OutputAddress.ToPlutusData(),
data.NewMap(valueData),
// Empty datum option
data.NewConstr(0),
// Empty script ref
data.NewConstr(1),
)
return tmpData
}

func (o ByronTransactionOutput) Address() common.Address {
Expand Down
43 changes: 41 additions & 2 deletions ledger/mary/mary.go
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Original file line number Diff line number Diff line change
Expand Up @@ -17,6 +17,7 @@ package mary
import (
"encoding/json"
"fmt"
"math/big"

"github.com/blinklabs-io/gouroboros/cbor"
"github.com/blinklabs-io/gouroboros/ledger/common"
Expand Down Expand Up @@ -449,8 +450,46 @@ func (o MaryTransactionOutput) MarshalJSON() ([]byte, error) {
}

func (o MaryTransactionOutput) ToPlutusData() data.PlutusData {
// A Mary transaction output will never be used for Plutus scripts
return nil
var valueData [][2]data.PlutusData
if o.OutputAmount.Amount > 0 {
valueData = append(
valueData,
[2]data.PlutusData{
data.NewByteString(nil),
data.NewMap(
[][2]data.PlutusData{
{
data.NewByteString(nil),
data.NewInteger(
new(big.Int).SetUint64(o.OutputAmount.Amount),
),
},
},
),
},
)
}
if o.OutputAmount.Assets != nil {
assetData := o.OutputAmount.Assets.ToPlutusData()
assetDataMap, ok := assetData.(*data.Map)
if !ok {
return nil
}
valueData = append(
valueData,
assetDataMap.Pairs...,
)
}
tmpData := data.NewConstr(
0,
o.OutputAddress.ToPlutusData(),
data.NewMap(valueData),
// Empty datum option
data.NewConstr(0),
// Empty script ref
data.NewConstr(1),
)
return tmpData
}

func (o MaryTransactionOutput) Address() common.Address {
Expand Down
31 changes: 29 additions & 2 deletions ledger/shelley/shelley.go
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Original file line number Diff line number Diff line change
Expand Up @@ -404,8 +404,35 @@ func (o *ShelleyTransactionOutput) UnmarshalCBOR(cborData []byte) error {
}

func (o ShelleyTransactionOutput) ToPlutusData() data.PlutusData {
// A Shelley transaction output will never be used for Plutus scripts
return nil
var valueData [][2]data.PlutusData
if o.OutputAmount > 0 {
valueData = append(
valueData,
[2]data.PlutusData{
data.NewByteString(nil),
data.NewMap(
[][2]data.PlutusData{
{
data.NewByteString(nil),
data.NewInteger(
new(big.Int).SetUint64(o.OutputAmount),
),
},
},
),
},
)
}
tmpData := data.NewConstr(
0,
o.OutputAddress.ToPlutusData(),
data.NewMap(valueData),
// Empty datum option
data.NewConstr(0),
// Empty script ref
data.NewConstr(1),
)
return tmpData
}

func (o ShelleyTransactionOutput) Address() common.Address {
Expand Down