* extends the functionality of the MPTokenIssuanceSet transaction, allowing the issuer to update fields or flags that were explicitly marked as mutable during creation.
- Cleaned up some of the `LEDGER_ENTRY` macros by eliding unnecessary
parameters.
- Define the transaction privileges in one place (InvariantCheck.cpp).
- Give `EscrowFinish` the `mayAuthorizeMPT` privilege.
- Rename the test helper `expectLine` to `expectHolding` since
it handles both trust lines and MPTs.
- Restructure the ""pseudo-account has 2 pseudo-account fields set"
invariant test to loop over all defined pseudo-account fields.
- Fix `operator<<` for `PrettyAmount` to handle `MPTIssue`s.
- Add enforcement of the `AccountRootsDeletedClean` invariant if SAV is
enabled, and clarify the comment for the pseudo-account field check.
- Delete the 100% redundant `ttMPTOKEN_ISSUANCE_SET` check in
`ValidMPTIssuance`.
- Specification: https://github.com/XRPLF/XRPL-Standards/pull/272
- Amendment: `TokenEscrow`
- Enables escrowing of IOU and MPT tokens in addition to native XRP.
- Allows accounts to lock issued tokens (IOU/MPT) in escrow objects, with support for freeze, authorization, and transfer rates.
- Adds new ledger fields (`sfLockedAmount`, `sfIssuerNode`, etc.) to track locked balances for IOU and MPT escrows.
- Updates EscrowCreate, EscrowFinish, and EscrowCancel transaction logic to support IOU and MPT assets, including proper handling of trustlines and MPT authorization, transfer rates, and locked balances.
- Enforces invariant checks for escrowed IOU/MPT amounts.
- Extends GatewayBalances RPC to report locked (escrowed) balances.
- Specification: XRPLF/XRPL-Standards#239
- Amendment: `SingleAssetVault`
- Implements a vault feature used to store a fungible asset (XRP, IOU, or MPT, but not NFT) and to receive shares in the vault (an MPT) in exchange.
- A vault can be private or public.
- A private vault can use permissioned domains, subject to the `PermissionedDomains` amendment.
- Shares can be exchanged back into asset with `VaultWithdraw`.
- Permissions on the asset in the vault are transitively applied on shares in the vault.
- Issuer of the asset in the vault can clawback with `VaultClawback`.
- Extended `MPTokenIssuance` with `DomainID`, used by the permissioned domain on the vault shares.
Co-authored-by: John Freeman <jfreeman08@gmail.com>
- spec: XRPLF/XRPL-Standards#220
- amendment: "DeepFreeze"
- implemented deep freeze spec to allow token issuers to prevent currency holders from being able to acquire more of these tokens.
- in combination with normal freeze, deep freeze effectively prevents any balance trust line balance change of a currency holder (except direct issuer <-> holder payments).
- added 2 new invariant checks to verify that deep freeze cannot be enacted without normal freeze and transfer is not frozen.
- made some fixes to existing freeze handling.
Co-authored-by: Ed Hennis <ed@ripple.com>
Co-authored-by: Howard Hinnant <howard.hinnant@gmail.com>
The LEDGER_ENTRY macro now takes an additional parameter, which makes it easier to avoid missing including the new field in jss.h and to the list of account_objects/ledger_data filters.
