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fix: store redeemers in legacy format when needed #1079

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Merged
merged 1 commit into from
Jul 11, 2025
+10 −17
Merged

fix: store redeemers in legacy format when needed #1079

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27 changes: 10 additions & 17 deletions ledger/conway/conway.go
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Original file line number Diff line number Diff line change
Expand Up @@ -167,27 +167,14 @@ type ConwayRedeemerValue struct {
}

type ConwayRedeemers struct {
Redeemers map[ConwayRedeemerKey]ConwayRedeemerValue
legacy bool
Redeemers map[ConwayRedeemerKey]ConwayRedeemerValue
legacyRedeemers alonzo.AlonzoRedeemers
legacy bool
}

func (r *ConwayRedeemers) UnmarshalCBOR(cborData []byte) error {
// Try to parse as legacy redeemer first
var tmpRedeemers []alonzo.AlonzoRedeemer
if _, err := cbor.Decode(cborData, &tmpRedeemers); err == nil {
// Copy data from legacy redeemer type
r.Redeemers = make(map[ConwayRedeemerKey]ConwayRedeemerValue)
for _, redeemer := range tmpRedeemers {
tmpKey := ConwayRedeemerKey{
Tag: redeemer.Tag,
Index: redeemer.Index,
}
tmpVal := ConwayRedeemerValue{
Data: redeemer.Data,
ExUnits: redeemer.ExUnits,
}
r.Redeemers[tmpKey] = tmpVal
}
if _, err := cbor.Decode(cborData, &(r.legacyRedeemers)); err == nil {
r.legacy = true
} else {
_, err := cbor.Decode(cborData, &(r.Redeemers))
Expand All @@ -197,6 +184,9 @@ func (r *ConwayRedeemers) UnmarshalCBOR(cborData []byte) error {
}

func (r ConwayRedeemers) Indexes(tag common.RedeemerTag) []uint {
if r.legacy {
return r.legacyRedeemers.Indexes(tag)
}
ret := []uint{}
for key := range r.Redeemers {
if key.Tag == tag {
Expand All @@ -210,6 +200,9 @@ func (r ConwayRedeemers) Value(
index uint,
tag common.RedeemerTag,
) (cbor.LazyValue, common.ExUnits) {
if r.legacy {
return r.legacyRedeemers.Value(index, tag)
}
redeemer, ok := r.Redeemers[ConwayRedeemerKey{
Tag: tag,
Index: uint32(index), // #nosec G115
Expand Down
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