ComptrollerStorage

This page describes the state exposed by the ComptrollerStorage v4.4.0 source. It is not a slot-by-slot storage layout.

For an upgrade review, resolve the current Comptroller beacon implementation from the engine version map and use the compiler-generated storage layout for that exact build. The complete layout includes inherited upgradeable contracts, internal mappings and arrays, and reserved gaps that public getters do not reveal.

Structures

struct LiquidationOrder {
    VToken vTokenCollateral;
    VToken vTokenBorrowed;
    uint256 repayAmount;
}

struct AccountLiquiditySnapshot {
    uint256 totalCollateral;
    uint256 weightedCollateral;
    uint256 borrows;
    uint256 effects;
    uint256 liquidity;
    uint256 shortfall;
}

struct RewardSpeeds {
    address rewardToken;
    uint256 supplySpeed;
    uint256 borrowSpeed;
}

struct Market {
    bool isListed;
    uint256 collateralFactorMantissa;
    uint256 liquidationThresholdMantissa;
    mapping(address => bool) accountMembership;
}

Public state getters

Getter	Meaning
oracle()	ResilientOracle used for pool liquidity and liquidation checks
closeFactorMantissa()	maximum regular-liquidation repayment fraction, scaled by 1e18
liquidationIncentiveMantissa()	gross collateral seizure multiplier, scaled by 1e18
accountAssets(account, index)	markets entered by an account
markets(vToken)	listing, collateral factor, and liquidation threshold; the nested membership mapping is not returned
allMarkets(index)	historical market array; use isMarketListed to distinguish current listing
borrowCaps(vToken) / supplyCaps(vToken)	current market caps
minLiquidatableCollateral()	threshold separating regular and batch liquidation paths
isForcedLiquidationEnabled(vToken)	whether liquidity checks can be skipped for forced liquidation of that borrowed market
prime()	Prime contract used by borrow policy, or zero where not configured
approvedDelegates(user, delegate)	permission for delegated borrow and redeem flows

The implementation also exposes immutable poolRegistry() and inherited maxLoopsLimit() configuration outside ComptrollerStorage itself.

Internal state that a getter-only list misses

• _actionPaused[market][action], exposed through actionPaused;

• rewardsDistributors and rewardsDistributorExists, exposed through reward getters;

• constants that constrain close and collateral factors;

• the v4.4.0 uint256[47] __gap;

• inherited Ownable2StepUpgradeable, AccessControlledV8, max-loop, reentrancy, and other parent storage.

Never infer storage slots from the order of the table above. Beacon upgrades affect every Comptroller proxy using that beacon, while each proxy retains its own storage.