FluidLendingStaticRateModel

Git Source

Inherits:Variables, IFluidLendingStaticRateModel, Events, Error

Title: LendingStaticRateModel

Returns a signed APR offset (1e12 = 1%) for wired fTokens. The fToken itself applies Liquidity-layer supply yield ± this offset when compounding the share exchange price.

Also exposes legacy streaming getRate / getConfig as zero stubs (same selectors) so older LendingResolvers that always call those do not revert on static-wired fTokens. getRateV2 matches the streaming model's signed ABI (int256 rate) so fTokens use one call path for both model types.

Functions

onlyConfigurator

Validates that an address is the configurator (team multisig)

modifier onlyConfigurator() ;

constructor

Sets variables for static rate configuration.

constructor(
    address configurator_,
    address fToken_,
    address fToken2_,
    address fToken3_,
    int256 initialRate_,
    uint256 duration_
) ;

Parameters

Name	Type	Description
configurator_	address	The address with authority to configure the static rate.
fToken_	address	The address of the associated fToken contract.
fToken2_	address	The address of the associated fToken contract 2, optional.
fToken3_	address	The address of the associated fToken contract 3, optional.
initialRate_	int256	Signed APR offset (1e12 = 1%), within ±MAX_RATE.
duration_	uint256	Duration in seconds for which the rate runs.

getStaticConfig

Static-model config read. Named distinctly from legacy streaming getConfig() (7-tuple) so both can coexist on the same contract without selector / ABI-decode collisions.

function getStaticConfig()
    external
    view
    returns (int256 staticRate_, uint256 duration_, uint256 startTime_, address configurator_, uint256 maxRate_);

Returns

Name	Type	Description
staticRate_	int256	signed APR offset (1e12 = 1%), same value as getRateV2 while the period is current
duration_	uint256	duration in seconds for the current rate period
startTime_	uint256	when the current rate period started
configurator_	address	address with authority to configure the static rate
maxRate_	uint256	hard ceiling on `

getConfig

Legacy streaming config shape. Always zeros: use getStaticConfig.

function getConfig()
    external
    pure
    returns (
        uint256 duration_,
        uint256 startTime_,
        uint256 endTime_,
        uint256 startTvl_,
        uint256 maxRate_,
        uint256 rewardAmount_,
        address configurator_
    );

getRate

Legacy streaming rate stub. Accrual uses signed getRateV2 on the fToken static path.

function getRate(
    uint256 /**
             * totalAssets_
             */
)
    external
    pure
    returns (uint256 rate_, bool ended_, uint256 startTime_);

getRateV2

Signed APR offset feed for static-wired fTokens. Input totalAssets_ is ignored (TVL-independent).

Returns the configured signed offset only. fToken combines it with Liquidity yield.

function getRateV2(
    uint256 /**
             * totalAssets_
             */
)
    public
    view
    returns (int256 rate_, bool ended_, uint256 startTime_, uint256 endTime_);

Returns

Name	Type	Description
rate_	int256	signed APR offset with 1e12 = 1%. Positive = on top of Liquidity yield; negative = below. The fToken applies Liquidity supply yield ± this offset. Stays the configured offset even when ended_ is true so the fToken can settle accrual exactly up to endTime_.
ended_	bool	true after startTime + duration (mirrors streaming getRateV2 ended semantics).
startTime_	uint256	accrual start time for the current rate period
endTime_	uint256	end time of the current rate period (startTime + duration)

setStaticRate

Updates the signed APR offset and duration. Callable only by configurator.

function setStaticRate(int256 rate_, uint256 duration_) external onlyConfigurator;

Parameters

Name	Type	Description
rate_	int256	signed APR offset with 1e12 = 1% (e.g. 1e12 = +1% on Liquidity, -3e12 = −3%)
duration_	uint256	duration in seconds

stopStaticRate

Stops the current static rate program instantly. Mirrors streaming stopRewards(). Settles fToken accrual via updateRates() only (does not re-wire the model on the fToken).

function stopStaticRate() external onlyConfigurator;

_isOutsideMaxRate

function _isOutsideMaxRate(int256 rate_) internal pure returns (bool);