Add deep freeze feature (XLS-77d) (#5187)

- 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>
This commit is contained in:
Vlad
2025-01-31 18:40:33 +00:00
committed by tequ
parent 2b59176cfd
commit 01372a67a8
22 changed files with 2497 additions and 49 deletions

View File

@@ -29,6 +29,7 @@
// If you add an amendment here, then do not forget to increment `numFeatures`
// in include/xrpl/protocol/Feature.h.
XRPL_FEATURE(DeepFreeze, Supported::yes, VoteBehavior::DefaultNo)
XRPL_FEATURE(PermissionedDomains, Supported::no, VoteBehavior::DefaultNo)
XRPL_FEATURE(DynamicNFT, Supported::yes, VoteBehavior::DefaultNo)
XRPL_FEATURE(Credentials, Supported::yes, VoteBehavior::DefaultNo)
@@ -139,3 +140,4 @@ XRPL_FIX (NFTokenNegOffer, Supported::yes, VoteBehavior::Obsolete)
XRPL_FIX (NFTokenDirV1, Supported::yes, VoteBehavior::Obsolete)
XRPL_FEATURE(NonFungibleTokensV1, Supported::yes, VoteBehavior::Obsolete)
XRPL_FEATURE(CryptoConditionsSuite, Supported::yes, VoteBehavior::Obsolete)