DIDDelete.cpp

#include <xrpl/tx/transactors/did/DIDDelete.h>
 
#include <xrpl/basics/Log.h>
#include <xrpl/core/ServiceRegistry.h>
#include <xrpl/ledger/ApplyView.h>
#include <xrpl/ledger/ReadView.h>
#include <xrpl/ledger/helpers/AccountRootHelpers.h>
#include <xrpl/protocol/AccountID.h>
#include <xrpl/protocol/Indexes.h>
#include <xrpl/protocol/Keylet.h>
#include <xrpl/protocol/SField.h>
#include <xrpl/protocol/STLedgerEntry.h>
#include <xrpl/protocol/STTx.h>
#include <xrpl/protocol/TER.h>
#include <xrpl/protocol/XRPAmount.h>
#include <xrpl/tx/ApplyContext.h>
#include <xrpl/tx/Transactor.h>
 
namespace xrpl {
 
NotTEC
DIDDelete::preflight(PreflightContext const& ctx)
{
    return tesSUCCESS;
}
 
TER
DIDDelete::deleteSLE(ApplyContext& ctx, Keylet sleKeylet, AccountID const owner)
{
    auto const sle = ctx.view().peek(sleKeylet);
    if (!sle)
        return tecNO_ENTRY;
 
    return DIDDelete::deleteSLE(ctx.view(), sle, owner, ctx.journal);
}
 
TER
DIDDelete::deleteSLE(ApplyView& view, SLE::pointer sle, AccountID const owner, beast::Journal j)
{
    // Remove object from owner directory
    if (!view.dirRemove(keylet::ownerDir(owner), (*sle)[sfOwnerNode], sle->key(), true))
    {
        // LCOV_EXCL_START
        JLOG(j.fatal()) << "Unable to delete DID from owner.";
        return tefBAD_LEDGER;
        // LCOV_EXCL_STOP
    }
 
    auto const sleOwner = view.peek(keylet::account(owner));
    if (!sleOwner)
        return tecINTERNAL;  // LCOV_EXCL_LINE
 
    decreaseOwnerCountForObject(view, sleOwner, sle, 1, j);
 
    // Remove object from ledger
    view.erase(sle);
    return tesSUCCESS;
}
 
TER
DIDDelete::doApply()
{
    return deleteSLE(ctx_, keylet::did(accountID_), accountID_);
}
 
void
DIDDelete::visitInvariantEntry(bool, SLE::ConstRef, SLE::ConstRef)
{
    // No transaction-specific invariants yet (future work).
}
 
bool
DIDDelete::finalizeInvariants(STTx const&, TER, XRPAmount, ReadView const&, beast::Journal const&)
{
    // No transaction-specific invariants yet (future work).
    return true;
}
}  // namespace xrpl