qqqdfsdfsdf

function rebase(

uint256 epoch,

uint256 indexDelta,

bool positive

)

external

returns (uint256)

{

epoch; indexDelta; positive;

delegateAndReturn();

}

function rebase()

public

{

// EOA only

require(msg.sender == tx.origin);

// ensure rebasing at correct time

_inRebaseWindow();

// This comparison also ensures there is no reentrancy.

require(lastRebaseTimestampSec.add(minRebaseTimeIntervalSec) < now);

// Snap the rebase time to the start of this window.

lastRebaseTimestampSec = now.sub(

now.mod(minRebaseTimeIntervalSec)).add(rebaseWindowOffsetSec);

epoch = epoch.add(1);

// get twap from uniswap v2;

uint256 exchangeRate = getTWAP();

// calculates % change to supply

(uint256 offPegPerc, bool positive) = computeOffPegPerc(exchangeRate);

uint256 indexDelta = offPegPerc;

// Apply the Dampening factor.

indexDelta = indexDelta.div(rebaseLag);

YAMTokenInterface yam = YAMTokenInterface(yamAddress);

if (positive) {

require(yam.yamsScalingFactor().mul(uint256(10**18).add(indexDelta)).div(10**18) < yam.maxScalingFactor(), "new scaling factor will be too big");

}

//SlowMist// 取当前 YAM 代币的供应量

uint256 currSupply = yam.totalSupply();

uint256 mintAmount;

// reduce indexDelta to account for minting

//SlowMist// 计算要调整的供应量

if (positive) {

uint256 mintPerc = indexDelta.mul(rebaseMintPerc).div(10**18);

indexDelta = indexDelta.sub(mintPerc);

mintAmount = currSupply.mul(mintPerc).div(10**18);

}

// rebase

//SlowMist// 调用 YAM 的rebase 逻辑

uint256 supplyAfterRebase = yam.rebase(epoch, indexDelta, positive);

assert(yam.yamsScalingFactor() <= yam.maxScalingFactor());

// perform actions after rebase

//SlowMist// 进入调整逻辑

afterRebase(mintAmount, offPegPerc);

}

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