Change.h

#pragma once
 
#include <xrpl/beast/utility/Journal.h>
#include <xrpl/core/ServiceRegistry.h>
#include <xrpl/ledger/ReadView.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 {
 
class Change : public Transactor
{
public:
    static constexpr auto kConsequencesFactory = ConsequencesFactoryType::Normal;
 
    explicit Change(ApplyContext& ctx) : Transactor(ctx)
    {
    }
 
    TER
    doApply() override;
    void
    preCompute() override;
 
    void
    visitInvariantEntry(bool isDelete, SLE::const_ref before, SLE::const_ref after) override;
 
    [[nodiscard]] bool
    finalizeInvariants(
        STTx const& tx,
        TER result,
        XRPAmount fee,
        ReadView const& view,
        beast::Journal const& j) override;
 
    static XRPAmount
    calculateBaseFee(ReadView const& view, STTx const& tx)
    {
        return XRPAmount{0};
    }
 
    static TER
    preclaim(PreclaimContext const& ctx);
 
private:
    TER
    applyAmendment();
 
    TER
    applyFee();
 
    TER
    applyUNLModify();
};
 
using EnableAmendment = Change;
using SetFee = Change;
using UNLModify = Change;
 
}  // namespace xrpl