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feat: Support Confidential Transfer Fields (#3152)

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Add Confidential Transfer Fields to MPToken, MPToken Issuance, and
mpt_holders API
This commit is contained in:
Peter Chen
2026-07-23 15:31:15 -07:00
committed by GitHub
parent 55657fd1e9
commit 24ce768ba8
11 changed files with 412 additions and 7 deletions
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43
tests/common/util/TestObject.cpp
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@@ -1493,7 +1493,10 @@ createMptIssuanceObject(
std::optional<std::uint64_t> maxAmount,
std::optional<std::uint64_t> lockedAmount,
std::optional<std::string_view> domainId,
std::optional<std::uint32_t> mutableFlags
std::optional<std::uint32_t> mutableFlags,
std::optional<std::string_view> issuerEncryptionKey,
std::optional<std::string_view> auditorEncryptionKey,
std::optional<std::uint64_t> confidentialOutstandingAmount
)
{
xrpl::STObject mptIssuance(xrpl::sfLedgerEntry);
@@ -1522,6 +1525,19 @@ createMptIssuanceObject(
mptIssuance.setFieldH256(xrpl::sfDomainID, xrpl::uint256{*domainId});
if (mutableFlags.has_value())
mptIssuance.setFieldU32(xrpl::sfMutableFlags, *mutableFlags);
if (issuerEncryptionKey.has_value()) {
xrpl::Slice const slice(issuerEncryptionKey->data(), issuerEncryptionKey->size());
mptIssuance.setFieldVL(xrpl::sfIssuerEncryptionKey, slice);
}
if (auditorEncryptionKey.has_value()) {
xrpl::Slice const slice(auditorEncryptionKey->data(), auditorEncryptionKey->size());
mptIssuance.setFieldVL(xrpl::sfAuditorEncryptionKey, slice);
}
if (confidentialOutstandingAmount.has_value()) {
mptIssuance.setFieldU64(
xrpl::sfConfidentialOutstandingAmount, *confidentialOutstandingAmount
);
}
return mptIssuance;
}
@@ -1532,7 +1548,13 @@ createMpTokenObject(
xrpl::uint192 issuanceID,
std::uint64_t mptAmount,
std::uint32_t flags,
std::optional<uint64_t> lockedAmount
std::optional<uint64_t> lockedAmount,
std::optional<std::string_view> confidentialBalanceInbox,
std::optional<std::string_view> confidentialBalanceSpending,
std::optional<std::uint32_t> confidentialBalanceVersion,
std::optional<std::string_view> issuerEncryptedBalance,
std::optional<std::string_view> auditorEncryptedBalance,
std::optional<std::string_view> holderEncryptionKey
)
{
xrpl::STObject mptoken(xrpl::sfLedgerEntry);
@@ -1549,6 +1571,23 @@ createMpTokenObject(
if (lockedAmount.has_value())
mptoken.setFieldU64(xrpl::sfLockedAmount, *lockedAmount);
auto const setVL = [&](xrpl::SField const& field,
std::optional<std::string_view> const& value) {
if (value.has_value()) {
xrpl::Slice const slice(value->data(), value->size());
mptoken.setFieldVL(field, slice);
}
};
setVL(xrpl::sfConfidentialBalanceInbox, confidentialBalanceInbox);
setVL(xrpl::sfConfidentialBalanceSpending, confidentialBalanceSpending);
setVL(xrpl::sfIssuerEncryptedBalance, issuerEncryptedBalance);
setVL(xrpl::sfAuditorEncryptedBalance, auditorEncryptedBalance);
setVL(xrpl::sfHolderEncryptionKey, holderEncryptionKey);
if (confidentialBalanceVersion.has_value())
mptoken.setFieldU32(xrpl::sfConfidentialBalanceVersion, *confidentialBalanceVersion);
return mptoken;
}