ApplyContext.cpp

#include <xrpl/tx/ApplyContext.h>
 
#include <xrpl/basics/base_uint.h>
#include <xrpl/beast/utility/Journal.h>
#include <xrpl/beast/utility/instrumentation.h>
#include <xrpl/core/ServiceRegistry.h>
#include <xrpl/ledger/ApplyView.h>
#include <xrpl/ledger/OpenView.h>
#include <xrpl/ledger/OrderBookDB.h>
#include <xrpl/protocol/Book.h>
#include <xrpl/protocol/STTx.h>
#include <xrpl/protocol/TER.h>
#include <xrpl/protocol/TxMeta.h>
#include <xrpl/protocol/XRPAmount.h>
 
#include <cstddef>
#include <functional>
#include <optional>
 
namespace xrpl {
 
ApplyContext::ApplyContext(
    ServiceRegistry& registry,
    OpenView& base,
    std::optional<UInt256 const> const& parentBatchId,
    STTx const& tx,
    TER preclaimResult,
    XRPAmount baseFee,
    ApplyFlags flags,
    beast::Journal journal)
    : registry(registry)
    , tx(tx)
    , preclaimResult(preclaimResult)
    , baseFee(baseFee)
    , journal(journal)
    , base_(base)
    , flags_(flags)
    , parentBatchId_(parentBatchId)
{
    XRPL_ASSERT(
        parentBatchId.has_value() == ((flags_ & TapBatch) == TapBatch),
        "Parent Batch ID should be set if batch apply flag is set");
    view_.emplace(&base_, flags_);
}
 
void
ApplyContext::discard()
{
    view_.emplace(&base_, flags_);
}
 
std::optional<TxMeta>
ApplyContext::apply(TER ter)
{
    // NOLINTNEXTLINE(bugprone-unchecked-optional-access) view_ emplaced in constructor
    return view_->apply(base_, tx, ter, parentBatchId_, (flags_ & TapDryRun) != 0u, journal);
}
 
void
ApplyContext::addOrderBook(Book const& book)
{
    if ((flags_ & TapDryRun) == TapNone)
        registry.get().getOrderBookDB().addOrderBook(book);
}
 
std::size_t
ApplyContext::size()
{
    return view_->size();  // NOLINT(bugprone-unchecked-optional-access)
}
 
void
ApplyContext::visit(
    std::function<void(UInt256 const&, bool, SLE::ConstRef, SLE::ConstRef)> const& func)
{
    view_->visit(base_, func);  // NOLINT(bugprone-unchecked-optional-access)
}
 
}  // namespace xrpl