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fix: prevent nil panic when Redeemers() returns nil #1188

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Merged
merged 1 commit into from
Sep 13, 2025
Merged

fix: prevent nil panic when Redeemers() returns nil #1188

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8 changes: 7 additions & 1 deletion ledger/common/script/context.go
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Original file line number Diff line number Diff line change
Expand Up @@ -310,6 +310,9 @@ func collapseOutputs(outputs []lcommon.Utxo) []lcommon.TransactionOutput {
func sortedRedeemerKeys(
redeemers lcommon.TransactionWitnessRedeemers,
) []lcommon.RedeemerKey {
if redeemers == nil {
return []lcommon.RedeemerKey{}
}
tags := []lcommon.RedeemerTag{
lcommon.RedeemerTagSpend,
lcommon.RedeemerTagMint,
Expand Down Expand Up @@ -411,9 +414,12 @@ func redeemersInfo(
witnessSet lcommon.TransactionWitnessSet,
toScriptPurpose toScriptPurposeFunc,
) KeyValuePairs[ScriptPurpose, Redeemer] {
var ret KeyValuePairs[ScriptPurpose, Redeemer]
redeemers := witnessSet.Redeemers()
if redeemers == nil {
return KeyValuePairs[ScriptPurpose, Redeemer]{}
}
redeemerKeys := sortedRedeemerKeys(redeemers)
ret := make(KeyValuePairs[ScriptPurpose, Redeemer], 0, len(redeemerKeys))
for _, key := range redeemerKeys {
redeemerValue := redeemers.Value(uint(key.Index), key.Tag)
purpose := toScriptPurpose(key)
Expand Down
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