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1a7f824b89
The invariant check system had grown into a single monolithic file pair containing 24 invariant checker classes. The large `InvariantCheck.cpp` file was a frequent source of merge conflicts and difficult to navigate. This refactoring improves maintainability and readability with zero behavioral changes. In particular, this change: - Splits `InvariantCheck.h` and `InvariantCheck.cpp` into 10 focused header/source pairs organized by domain under a new `invariants/` subdirectory. - Extracts the shared `Privilege` enum and `hasPrivilege()` function into a dedicated `InvariantCheckPrivilege.h` header, so domain-specific files can reference them independently.
85 lines
2.1 KiB
C++
85 lines
2.1 KiB
C++
#pragma once
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#include <xrpl/beast/utility/Journal.h>
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#include <xrpl/ledger/ReadView.h>
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#include <xrpl/protocol/Issue.h>
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#include <xrpl/protocol/STAmount.h>
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#include <xrpl/protocol/STTx.h>
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#include <xrpl/protocol/TER.h>
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#include <map>
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#include <vector>
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namespace xrpl {
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/**
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* @brief Invariant: frozen trust line balance change is not allowed.
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*
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* We iterate all affected trust lines and ensure that they don't have
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* unexpected change of balance if they're frozen.
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*/
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class TransfersNotFrozen
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{
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struct BalanceChange
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{
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std::shared_ptr<SLE const> const line;
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int const balanceChangeSign;
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};
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struct IssuerChanges
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{
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std::vector<BalanceChange> senders;
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std::vector<BalanceChange> receivers;
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};
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using ByIssuer = std::map<Issue, IssuerChanges>;
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ByIssuer balanceChanges_;
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std::map<AccountID, std::shared_ptr<SLE const> const> possibleIssuers_;
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public:
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void
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visitEntry(bool, std::shared_ptr<SLE const> const&, std::shared_ptr<SLE const> const&);
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bool
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finalize(STTx const&, TER const, XRPAmount const, ReadView const&, beast::Journal const&);
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private:
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bool
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isValidEntry(std::shared_ptr<SLE const> const& before, std::shared_ptr<SLE const> const& after);
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STAmount
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calculateBalanceChange(
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std::shared_ptr<SLE const> const& before,
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std::shared_ptr<SLE const> const& after,
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bool isDelete);
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void
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recordBalance(Issue const& issue, BalanceChange change);
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void
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recordBalanceChanges(std::shared_ptr<SLE const> const& after, STAmount const& balanceChange);
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std::shared_ptr<SLE const>
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findIssuer(AccountID const& issuerID, ReadView const& view);
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bool
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validateIssuerChanges(
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std::shared_ptr<SLE const> const& issuer,
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IssuerChanges const& changes,
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STTx const& tx,
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beast::Journal const& j,
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bool enforce);
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bool
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validateFrozenState(
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BalanceChange const& change,
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bool high,
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STTx const& tx,
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beast::Journal const& j,
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bool enforce,
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bool globalFreeze);
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};
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} // namespace xrpl
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