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Contract

0x1338a5BdAFe2f0C2a847b04fd943A61787F046cD
 

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From
To
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Deposit Lender184388682023-10-27 3:29:47127 days ago1698377387IN
0x1338a5Bd...787F046cD
0 ETH0.0018537917.64196161
Deposit Borrower184378892023-10-27 0:12:47127 days ago1698365567IN
0x1338a5Bd...787F046cD
0 ETH0.0019675115.21712321
Deposit Lender184369402023-10-26 21:01:59127 days ago1698354119IN
0x1338a5Bd...787F046cD
0 ETH0.0040340538.39066492
Deposit Lender184366052023-10-26 19:54:35127 days ago1698350075IN
0x1338a5Bd...787F046cD
0 ETH0.0020840319.83306532
Deposit Lender184365322023-10-26 19:39:59127 days ago1698349199IN
0x1338a5Bd...787F046cD
0 ETH0.0018870417.95837095
Deposit Lender184360412023-10-26 18:01:11127 days ago1698343271IN
0x1338a5Bd...787F046cD
0 ETH0.0034028633.92995651
Deposit Lender184302842023-10-25 22:40:11128 days ago1698273611IN
0x1338a5Bd...787F046cD
0 ETH0.0020055820
Deposit Lender184289452023-10-25 18:09:59128 days ago1698257399IN
0x1338a5Bd...787F046cD
0 ETH0.0062714346.63088067

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184220172023-10-24 18:51:23129 days ago1698173483  Contract Creation0 ETH
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Contract Source Code Verified (Exact Match)

Contract Name:
BloomPool

Compiler Version
v0.8.19+commit.7dd6d404

Optimization Enabled:
Yes with 100 runs

Other Settings:
paris EvmVersion
File 1 of 13 : BloomPool.sol
// SPDX-License-Identifier: BUSL-1.1
/*
β–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ•—β–‘β–ˆβ–ˆβ•—β–‘β–‘β–‘β–‘β–‘β–‘β–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ•—β–‘β–‘β–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ•—β–‘β–ˆβ–ˆβ–ˆβ•—β–‘β–‘β–‘β–ˆβ–ˆβ–ˆβ•—
β–ˆβ–ˆβ•”β•β•β–ˆβ–ˆβ•—β–ˆβ–ˆβ•‘β–‘β–‘β–‘β–‘β–‘β–ˆβ–ˆβ•”β•β•β–ˆβ–ˆβ•—β–ˆβ–ˆβ•”β•β•β–ˆβ–ˆβ•—β–ˆβ–ˆβ–ˆβ–ˆβ•—β–‘β–ˆβ–ˆβ–ˆβ–ˆβ•‘
β–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ•¦β•β–ˆβ–ˆβ•‘β–‘β–‘β–‘β–‘β–‘β–ˆβ–ˆβ•‘β–‘β–‘β–ˆβ–ˆβ•‘β–ˆβ–ˆβ•‘β–‘β–‘β–ˆβ–ˆβ•‘β–ˆβ–ˆβ•”β–ˆβ–ˆβ–ˆβ–ˆβ•”β–ˆβ–ˆβ•‘
β–ˆβ–ˆβ•”β•β•β–ˆβ–ˆβ•—β–ˆβ–ˆβ•‘β–‘β–‘β–‘β–‘β–‘β–ˆβ–ˆβ•‘β–‘β–‘β–ˆβ–ˆβ•‘β–ˆβ–ˆβ•‘β–‘β–‘β–ˆβ–ˆβ•‘β–ˆβ–ˆβ•‘β•šβ–ˆβ–ˆβ•”β•β–ˆβ–ˆβ•‘
β–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ•¦β•β–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ•—β•šβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ•”β•β•šβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ•”β•β–ˆβ–ˆβ•‘β–‘β•šβ•β•β–‘β–ˆβ–ˆβ•‘
β•šβ•β•β•β•β•β•β–‘β•šβ•β•β•β•β•β•β•β–‘β•šβ•β•β•β•β•β–‘β–‘β•šβ•β•β•β•β•β–‘β•šβ•β•β–‘β–‘β–‘β–‘β–‘β•šβ•β•
*/

pragma solidity 0.8.19;

import {ERC20} from "solmate/tokens/ERC20.sol";
import {IBloomPool, State} from "./interfaces/IBloomPool.sol";
import {IEmergencyHandler} from "./interfaces/IEmergencyHandler.sol";
import {ISwapRecipient} from "./interfaces/ISwapRecipient.sol";

import {SafeTransferLib} from "solady/utils/SafeTransferLib.sol";
import {SafeCastLib} from "solady/utils/SafeCastLib.sol";
import {FixedPointMathLib as Math} from "solady/utils/FixedPointMathLib.sol";
import {CommitmentsLib, Commitments, AssetCommitment} from "./lib/CommitmentsLib.sol";

import {IWhitelist} from "./interfaces/IWhitelist.sol";
import {ISwapFacility} from "./interfaces/ISwapFacility.sol";
import {IBPSFeed} from "./interfaces/IBPSFeed.sol";
import {IOracle} from "./interfaces/IOracle.sol";

contract BloomPool is IBloomPool, ISwapRecipient, ERC20 {
    using CommitmentsLib for Commitments;
    using CommitmentsLib for AssetCommitment;
    using SafeTransferLib for address;
    using SafeCastLib for uint256;

    uint256 internal constant BPS = 1e4; // Represents Scaling & Initial BPS Feed Rate
    uint256 internal constant ONE_YEAR = 360 days;

    // =============== Core Parameters ===============

    address public immutable UNDERLYING_TOKEN;
    address public immutable BILL_TOKEN;
    IWhitelist public immutable WHITELIST;
    address public immutable SWAP_FACILITY;
    address public immutable TREASURY;
    address public immutable EMERGENCY_HANDLER;
    address public immutable LENDER_RETURN_BPS_FEED;
    uint256 public immutable LEVERAGE_BPS;
    uint256 public immutable MIN_BORROW_DEPOSIT;
    uint256 public immutable COMMIT_PHASE_END;
    uint256 public immutable PRE_HOLD_SWAP_TIMEOUT_END;
    uint256 public immutable POST_HOLD_SWAP_TIMEOUT_END;
    uint256 public immutable POOL_PHASE_END;
    uint256 public immutable POOL_PHASE_DURATION;
    uint256 public immutable LENDER_RETURN_FEE;
    uint256 public immutable BORROWER_RETURN_FEE;

    // =================== Storage ===================

    Commitments internal borrowers;
    Commitments internal lenders;
    State internal setState = State.Commit;
    State internal stateBeforeEmergency;
    uint128 internal borrowerDistribution;
    uint128 internal totalBorrowerShares;
    uint128 internal lenderDistribution;
    uint128 internal totalLenderShares;

    // ================== Modifiers ==================

    modifier onlyState(State expectedState) {
        State currentState = state();
        if (currentState != expectedState) revert InvalidState(currentState);
        _;
    }

    modifier onlyAfterState(State lastInvalidState) {
        State currentState = state();
        if (currentState <= lastInvalidState) revert InvalidState(currentState);
        _;
    }

    modifier onlyEmergencyHandler() {
        if (msg.sender != EMERGENCY_HANDLER) revert NotEmergencyHandler();
        _;
    }

    constructor(
        address underlyingToken,
        address billToken,
        IWhitelist whitelist,
        address swapFacility,
        address treasury,
        address lenderReturnBpsFeed,
        address emergencyHandler,
        uint256 leverageBps,
        uint256 minBorrowDeposit,
        uint256 commitPhaseDuration,
        uint256 swapTimeout,
        uint256 poolPhaseDuration,
        uint256 lenderReturnFee,
        uint256 borrowerReturnFee,
        string memory name,
        string memory symbol
    ) ERC20(name, symbol, ERC20(underlyingToken).decimals()) {
        UNDERLYING_TOKEN = underlyingToken;
        BILL_TOKEN = billToken;
        WHITELIST = whitelist;
        SWAP_FACILITY = swapFacility;
        TREASURY = treasury;
        LENDER_RETURN_BPS_FEED = lenderReturnBpsFeed;
        EMERGENCY_HANDLER = emergencyHandler;
        LEVERAGE_BPS = leverageBps;
        MIN_BORROW_DEPOSIT = minBorrowDeposit;
        COMMIT_PHASE_END = block.timestamp + commitPhaseDuration;
        PRE_HOLD_SWAP_TIMEOUT_END = block.timestamp + commitPhaseDuration + swapTimeout;
        POOL_PHASE_END = block.timestamp + commitPhaseDuration + poolPhaseDuration;
        POOL_PHASE_DURATION = poolPhaseDuration;
        POST_HOLD_SWAP_TIMEOUT_END = block.timestamp + commitPhaseDuration + poolPhaseDuration + (swapTimeout * 2 );
        LENDER_RETURN_FEE = lenderReturnFee;
        BORROWER_RETURN_FEE = borrowerReturnFee;
    }

    // =============== Deposit Methods ===============

    /**
     * @inheritdoc IBloomPool
     */
    function depositBorrower(uint256 amount, bytes32[] calldata proof)
        external
        onlyState(State.Commit)
        returns (uint256 newId)
    {
        if (amount < MIN_BORROW_DEPOSIT) revert CommitTooSmall();
        if (!IWhitelist(WHITELIST).isWhitelisted(msg.sender, proof)) revert NotWhitelisted();
        UNDERLYING_TOKEN.safeTransferFrom(msg.sender, address(this), amount);
        uint256 cumulativeAmountEnd;
        (newId, cumulativeAmountEnd) = borrowers.add(msg.sender, amount);
        emit BorrowerCommit(msg.sender, newId, amount, cumulativeAmountEnd);
    }

    /**
     * @inheritdoc IBloomPool
     */
    function depositLender(uint256 amount) external onlyState(State.Commit) returns (uint256 newId) {
        if (amount == 0) revert CommitTooSmall();
        UNDERLYING_TOKEN.safeTransferFrom(msg.sender, address(this), amount);
        uint256 cumulativeAmountEnd;
        (newId, cumulativeAmountEnd) = lenders.add(msg.sender, amount);
        emit LenderCommit(msg.sender, newId, amount, cumulativeAmountEnd);
    }

    // =========== Further Deposit Methods ===========

    /**
     * @inheritdoc IBloomPool
     */
    function processBorrowerCommit(uint256 id) external onlyAfterState(State.Commit) {
        AssetCommitment storage commitment = borrowers.commitments[id];
        if (commitment.cumulativeAmountEnd == 0) revert NoCommitToProcess();
        uint256 committedBorrowValue = lenders.totalAssetsCommitted * BPS / LEVERAGE_BPS;
        (uint256 includedAmount, uint256 excludedAmount) = commitment.getAmountSplit(committedBorrowValue);
        commitment.committedAmount = includedAmount.toUint128();
        commitment.cumulativeAmountEnd = 0;
        address owner = commitment.owner;
        emit BorrowerCommitmentProcessed(owner, id, includedAmount, excludedAmount);
        if (excludedAmount > 0) UNDERLYING_TOKEN.safeTransfer(owner, excludedAmount);
    }

    /**
     * @inheritdoc IBloomPool
     */
    function processLenderCommit(uint256 id) external onlyAfterState(State.Commit) {
        AssetCommitment storage commitment = lenders.commitments[id];
        if (commitment.cumulativeAmountEnd == 0) revert NoCommitToProcess();
        uint256 committedBorrowValue = borrowers.totalAssetsCommitted * LEVERAGE_BPS / BPS;
        (uint256 includedAmount, uint256 excludedAmount) = commitment.getAmountSplit(committedBorrowValue);
        address owner = commitment.owner;
        delete lenders.commitments[id];
        _mint(owner, includedAmount);
        emit LenderCommitmentProcessed(owner, id, includedAmount, excludedAmount);
        if (excludedAmount > 0) UNDERLYING_TOKEN.safeTransfer(owner, excludedAmount);
    }

    // ======== Swap State Management Methods ========

    /**
     * @inheritdoc IBloomPool
     */
    function initiatePreHoldSwap(bytes32[] calldata proof) external onlyState(State.ReadyPreHoldSwap) {
        uint256 amountToSwap = totalMatchAmount() * (LEVERAGE_BPS + BPS) / LEVERAGE_BPS;
        // Reset allowance to zero before to ensure can always set for weird tokens like USDT.
        UNDERLYING_TOKEN.safeApprove(SWAP_FACILITY, 0);
        UNDERLYING_TOKEN.safeApprove(SWAP_FACILITY, amountToSwap);
        emit ExplictStateTransition(State.ReadyPreHoldSwap, setState = State.PendingPreHoldSwap);
        ISwapFacility(SWAP_FACILITY).swap(UNDERLYING_TOKEN, BILL_TOKEN, amountToSwap, proof);
    }

    /**
     * @inheritdoc IBloomPool
     */
    function initiatePostHoldSwap(bytes32[] calldata proof) external onlyState(State.ReadyPostHoldSwap) {
        uint256 amountToSwap = ERC20(BILL_TOKEN).balanceOf(address(this));
        // Reset allowance to zero before to ensure can always set for weird tokens like USDT.
        BILL_TOKEN.safeApprove(SWAP_FACILITY, 0);
        BILL_TOKEN.safeApprove(SWAP_FACILITY, amountToSwap);
        emit ExplictStateTransition(State.ReadyPostHoldSwap, setState = State.PendingPostHoldSwap);
        ISwapFacility(SWAP_FACILITY).swap(BILL_TOKEN, UNDERLYING_TOKEN, amountToSwap, proof);
    }

    /**
     * @inheritdoc ISwapRecipient
     */
    function completeSwap(address outToken, uint256 outAmount) external {
        if (msg.sender != SWAP_FACILITY) revert NotSwapFacility();
        State currentState = state();
        if (currentState == State.PendingPreHoldSwap) {
            if (outToken != BILL_TOKEN) revert InvalidOutToken(outToken);
            emit ExplictStateTransition(State.PendingPreHoldSwap, setState = State.Holding);
            return;
        }
        if (currentState == State.PendingPostHoldSwap) {
            if (outToken != UNDERLYING_TOKEN) revert InvalidOutToken(outToken);
            uint256 totalMatched = totalMatchAmount();

            // Lenders get paid first, borrowers carry any shortfalls/excesses due to slippage.
            uint256 lenderReturn = _calculateLenderReturn(totalMatched, outAmount);

            uint256 borrowerReturn = outAmount - lenderReturn;
            uint256 lenderReturnFee = (lenderReturn - totalMatched) * LENDER_RETURN_FEE / BPS;
            uint256 borrowerReturnFee = borrowerReturn * BORROWER_RETURN_FEE / BPS;

            borrowerDistribution = (borrowerReturn - borrowerReturnFee).toUint128();
            totalBorrowerShares = uint256(totalMatched * BPS / LEVERAGE_BPS).toUint128();

            lenderDistribution = (lenderReturn - lenderReturnFee).toUint128();
            totalLenderShares = uint256(totalMatched).toUint128();

            UNDERLYING_TOKEN.safeTransfer(TREASURY, lenderReturnFee + borrowerReturnFee);

            emit ExplictStateTransition(State.PendingPostHoldSwap, setState = State.FinalWithdraw);
            return;
        }
        revert InvalidState(currentState);
    }

    // =========== Final Withdraw Methods ============

    /**
     * @inheritdoc IBloomPool
     */
    function withdrawBorrower(uint256 id) external onlyState(State.FinalWithdraw) {
        AssetCommitment storage commitment = borrowers.commitments[id];
        if (commitment.cumulativeAmountEnd != 0) revert CanOnlyWithdrawProcessedCommit(id);
        address owner = commitment.owner;
        if (owner == address(0)) revert NoCommitToWithdraw();
        uint256 shares = commitment.committedAmount;
        uint256 currentBorrowerDist = borrowerDistribution;
        uint256 sharesLeft = totalBorrowerShares;
        uint256 claimAmount = shares * currentBorrowerDist / sharesLeft;
        borrowerDistribution = (currentBorrowerDist - claimAmount).toUint128();
        totalBorrowerShares = (sharesLeft - shares).toUint128();
        delete borrowers.commitments[id];
        emit BorrowerWithdraw(owner, id, claimAmount);
        UNDERLYING_TOKEN.safeTransfer(owner, claimAmount);
    }

    /**
     * @inheritdoc IBloomPool
     */
    function withdrawLender(uint256 shares) external onlyState(State.FinalWithdraw) {
        _burn(msg.sender, shares);
        uint256 currentLenderDist = lenderDistribution;
        uint256 sharesLeft = totalLenderShares;
        uint256 claimAmount = shares * currentLenderDist / sharesLeft;
        lenderDistribution = (currentLenderDist - claimAmount).toUint128();
        totalLenderShares = (sharesLeft - shares).toUint128();
        emit LenderWithdraw(msg.sender, shares, claimAmount);
        UNDERLYING_TOKEN.safeTransfer(msg.sender, claimAmount);
    }

    // ========= Emergency Withdraw Methods ==========

    function emergencyWithdraw() external onlyState(State.EmergencyExit) {
        uint256 underlyingBalance = UNDERLYING_TOKEN.balanceOf(address(this));
        uint256 billBalance = BILL_TOKEN.balanceOf(address(this));
        uint256 underlyingPrice = 1e8;

        IOracle billOracle = IOracle(ISwapFacility(SWAP_FACILITY).billyTokenOracle());
        uint256 currentBillPrice = uint256(billOracle.latestAnswer());
        if (currentBillPrice <= 0) revert OracleAnswerNegative();

        uint256 underlyingDecimals = ERC20(UNDERLYING_TOKEN).decimals();
        uint256 billDecimals = ERC20(BILL_TOKEN).decimals();
        uint256 scalingFactor = 10 ** (billDecimals - underlyingDecimals);
        
        uint256 additionalValue = BILL_TOKEN.balanceOf(address(this)) * currentBillPrice / underlyingPrice / scalingFactor;
        uint256 expectedTotalBalance = underlyingBalance + additionalValue;
       
        uint256 lenderDistro;
        uint256 borrowerDistro;
        uint256 totalMatched;
        bool yieldGenerating;
        // If we are in the emergency exit state before the end of the pool phase then we
        //    know this exit occured during the pre-hold swap phase, so users should be able
        //    to redeem USDC 1 for 1.
        if (block.timestamp >= POOL_PHASE_END) {
            totalMatched = totalMatchAmount();
            lenderDistro = _calculateLenderReturn(totalMatched, expectedTotalBalance);
            borrowerDistro = expectedTotalBalance - lenderDistro;
            yieldGenerating = true;
        } else {
            lenderDistro = lenders.totalAssetsCommitted;
            borrowerDistro = expectedTotalBalance - lenderDistro;
            yieldGenerating = false;
        }

        if (underlyingBalance > 0) {
            UNDERLYING_TOKEN.safeTransferAll(EMERGENCY_HANDLER);
            emit EmergencyWithdrawExecuted(address(this), EMERGENCY_HANDLER, underlyingBalance);
        }
        
        if (billBalance > 0) {
            BILL_TOKEN.safeTransferAll(EMERGENCY_HANDLER);
            emit EmergencyWithdrawExecuted(address(this), EMERGENCY_HANDLER, billBalance);
        }

        IEmergencyHandler.RedemptionInfo memory redemptionInfo = IEmergencyHandler.RedemptionInfo(
            IEmergencyHandler.Token(UNDERLYING_TOKEN, underlyingPrice, underlyingDecimals),
            IEmergencyHandler.Token(BILL_TOKEN, currentBillPrice, billDecimals),
            IEmergencyHandler.PoolAccounting(
                lenderDistro,
                borrowerDistro,
                totalMatched,
                totalMatched * BPS / LEVERAGE_BPS,
                underlyingBalance,
                billBalance
            ),
            yieldGenerating
        );

        IEmergencyHandler(EMERGENCY_HANDLER).registerPool(redemptionInfo);
    }

    function executeEmergencyBurn(
        address from,
        uint256 amount
    ) external onlyState(State.EmergencyExit) onlyEmergencyHandler {
        emit EmergencyBurn(from, amount);
        _burn(from, amount);
    }

    // ================ View Methods =================

    /// @notice Returns amount of lender-to-borrower demand that was matched.
    function totalMatchAmount() public view returns (uint256) {
        uint256 borrowDemand = borrowers.totalAssetsCommitted * LEVERAGE_BPS / BPS;
        uint256 lendDemand = lenders.totalAssetsCommitted;
        return Math.min(borrowDemand, lendDemand);
    }

    function state() public view returns (State) {
        if (block.timestamp < COMMIT_PHASE_END) {
            return State.Commit;
        }
        State lastState = setState;
        if (lastState == State.Commit && block.timestamp >= COMMIT_PHASE_END) {
            return State.ReadyPreHoldSwap;
        }
        if (lastState == State.PendingPreHoldSwap && block.timestamp >= PRE_HOLD_SWAP_TIMEOUT_END) {
            return State.EmergencyExit;
        }
        if (lastState == State.Holding && block.timestamp >= POOL_PHASE_END) {
            return State.ReadyPostHoldSwap;
        }
        if (lastState == State.PendingPostHoldSwap && block.timestamp >= POST_HOLD_SWAP_TIMEOUT_END) {
            return State.EmergencyExit;
        }
        return lastState;
    }

    function getBorrowCommitment(uint256 id) external view returns (AssetCommitment memory) {
        return borrowers.get(id);
    }

    function getLenderCommitment(uint256 id) external view returns (AssetCommitment memory) {
        return lenders.get(id);
    }

    function getTotalBorrowCommitment()
        external
        view
        returns (uint256 totalAssetsCommitted, uint256 totalCommitmentCount)
    {
        totalAssetsCommitted = borrowers.totalAssetsCommitted;
        totalCommitmentCount = borrowers.commitmentCount;
    }

    function getTotalLendCommitment()
        external
        view
        returns (uint256 totalAssetsCommitted, uint256 totalCommitmentCount)
    {
        totalAssetsCommitted = lenders.totalAssetsCommitted;
        totalCommitmentCount = lenders.commitmentCount;
    }

    function getDistributionInfo() external view returns (uint128, uint128, uint128, uint128) {
        return (borrowerDistribution, totalBorrowerShares, lenderDistribution, totalLenderShares);
    }

    function _calculateLenderReturn(uint256 totalMatched, uint256 outAmount) internal view returns (uint256) {
        uint256 rateAppreciation = IBPSFeed(LENDER_RETURN_BPS_FEED).getWeightedRate() - BPS;
        uint256 yieldEarned = totalMatched * rateAppreciation * POOL_PHASE_DURATION / ONE_YEAR / BPS;
        return Math.min(totalMatched + yieldEarned, outAmount);
    }
}

File 2 of 13 : ERC20.sol
// SPDX-License-Identifier: AGPL-3.0-only
pragma solidity >=0.8.0;

/// @notice Modern and gas efficient ERC20 + EIP-2612 implementation.
/// @author Solmate (https://github.com/transmissions11/solmate/blob/main/src/tokens/ERC20.sol)
/// @author Modified from Uniswap (https://github.com/Uniswap/uniswap-v2-core/blob/master/contracts/UniswapV2ERC20.sol)
/// @dev Do not manually set balances without updating totalSupply, as the sum of all user balances must not exceed it.
abstract contract ERC20 {
    /*//////////////////////////////////////////////////////////////
                                 EVENTS
    //////////////////////////////////////////////////////////////*/

    event Transfer(address indexed from, address indexed to, uint256 amount);

    event Approval(address indexed owner, address indexed spender, uint256 amount);

    /*//////////////////////////////////////////////////////////////
                            METADATA STORAGE
    //////////////////////////////////////////////////////////////*/

    string public name;

    string public symbol;

    uint8 public immutable decimals;

    /*//////////////////////////////////////////////////////////////
                              ERC20 STORAGE
    //////////////////////////////////////////////////////////////*/

    uint256 public totalSupply;

    mapping(address => uint256) public balanceOf;

    mapping(address => mapping(address => uint256)) public allowance;

    /*//////////////////////////////////////////////////////////////
                            EIP-2612 STORAGE
    //////////////////////////////////////////////////////////////*/

    uint256 internal immutable INITIAL_CHAIN_ID;

    bytes32 internal immutable INITIAL_DOMAIN_SEPARATOR;

    mapping(address => uint256) public nonces;

    /*//////////////////////////////////////////////////////////////
                               CONSTRUCTOR
    //////////////////////////////////////////////////////////////*/

    constructor(
        string memory _name,
        string memory _symbol,
        uint8 _decimals
    ) {
        name = _name;
        symbol = _symbol;
        decimals = _decimals;

        INITIAL_CHAIN_ID = block.chainid;
        INITIAL_DOMAIN_SEPARATOR = computeDomainSeparator();
    }

    /*//////////////////////////////////////////////////////////////
                               ERC20 LOGIC
    //////////////////////////////////////////////////////////////*/

    function approve(address spender, uint256 amount) public virtual returns (bool) {
        allowance[msg.sender][spender] = amount;

        emit Approval(msg.sender, spender, amount);

        return true;
    }

    function transfer(address to, uint256 amount) public virtual returns (bool) {
        balanceOf[msg.sender] -= amount;

        // Cannot overflow because the sum of all user
        // balances can't exceed the max uint256 value.
        unchecked {
            balanceOf[to] += amount;
        }

        emit Transfer(msg.sender, to, amount);

        return true;
    }

    function transferFrom(
        address from,
        address to,
        uint256 amount
    ) public virtual returns (bool) {
        uint256 allowed = allowance[from][msg.sender]; // Saves gas for limited approvals.

        if (allowed != type(uint256).max) allowance[from][msg.sender] = allowed - amount;

        balanceOf[from] -= amount;

        // Cannot overflow because the sum of all user
        // balances can't exceed the max uint256 value.
        unchecked {
            balanceOf[to] += amount;
        }

        emit Transfer(from, to, amount);

        return true;
    }

    /*//////////////////////////////////////////////////////////////
                             EIP-2612 LOGIC
    //////////////////////////////////////////////////////////////*/

    function permit(
        address owner,
        address spender,
        uint256 value,
        uint256 deadline,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) public virtual {
        require(deadline >= block.timestamp, "PERMIT_DEADLINE_EXPIRED");

        // Unchecked because the only math done is incrementing
        // the owner's nonce which cannot realistically overflow.
        unchecked {
            address recoveredAddress = ecrecover(
                keccak256(
                    abi.encodePacked(
                        "\x19\x01",
                        DOMAIN_SEPARATOR(),
                        keccak256(
                            abi.encode(
                                keccak256(
                                    "Permit(address owner,address spender,uint256 value,uint256 nonce,uint256 deadline)"
                                ),
                                owner,
                                spender,
                                value,
                                nonces[owner]++,
                                deadline
                            )
                        )
                    )
                ),
                v,
                r,
                s
            );

            require(recoveredAddress != address(0) && recoveredAddress == owner, "INVALID_SIGNER");

            allowance[recoveredAddress][spender] = value;
        }

        emit Approval(owner, spender, value);
    }

    function DOMAIN_SEPARATOR() public view virtual returns (bytes32) {
        return block.chainid == INITIAL_CHAIN_ID ? INITIAL_DOMAIN_SEPARATOR : computeDomainSeparator();
    }

    function computeDomainSeparator() internal view virtual returns (bytes32) {
        return
            keccak256(
                abi.encode(
                    keccak256("EIP712Domain(string name,string version,uint256 chainId,address verifyingContract)"),
                    keccak256(bytes(name)),
                    keccak256("1"),
                    block.chainid,
                    address(this)
                )
            );
    }

    /*//////////////////////////////////////////////////////////////
                        INTERNAL MINT/BURN LOGIC
    //////////////////////////////////////////////////////////////*/

    function _mint(address to, uint256 amount) internal virtual {
        totalSupply += amount;

        // Cannot overflow because the sum of all user
        // balances can't exceed the max uint256 value.
        unchecked {
            balanceOf[to] += amount;
        }

        emit Transfer(address(0), to, amount);
    }

    function _burn(address from, uint256 amount) internal virtual {
        balanceOf[from] -= amount;

        // Cannot underflow because a user's balance
        // will never be larger than the total supply.
        unchecked {
            totalSupply -= amount;
        }

        emit Transfer(from, address(0), amount);
    }
}

File 3 of 13 : IBloomPool.sol
// SPDX-License-Identifier: BUSL-1.1
/*
β–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ•—β–‘β–ˆβ–ˆβ•—β–‘β–‘β–‘β–‘β–‘β–‘β–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ•—β–‘β–‘β–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ•—β–‘β–ˆβ–ˆβ–ˆβ•—β–‘β–‘β–‘β–ˆβ–ˆβ–ˆβ•—
β–ˆβ–ˆβ•”β•β•β–ˆβ–ˆβ•—β–ˆβ–ˆβ•‘β–‘β–‘β–‘β–‘β–‘β–ˆβ–ˆβ•”β•β•β–ˆβ–ˆβ•—β–ˆβ–ˆβ•”β•β•β–ˆβ–ˆβ•—β–ˆβ–ˆβ–ˆβ–ˆβ•—β–‘β–ˆβ–ˆβ–ˆβ–ˆβ•‘
β–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ•¦β•β–ˆβ–ˆβ•‘β–‘β–‘β–‘β–‘β–‘β–ˆβ–ˆβ•‘β–‘β–‘β–ˆβ–ˆβ•‘β–ˆβ–ˆβ•‘β–‘β–‘β–ˆβ–ˆβ•‘β–ˆβ–ˆβ•”β–ˆβ–ˆβ–ˆβ–ˆβ•”β–ˆβ–ˆβ•‘
β–ˆβ–ˆβ•”β•β•β–ˆβ–ˆβ•—β–ˆβ–ˆβ•‘β–‘β–‘β–‘β–‘β–‘β–ˆβ–ˆβ•‘β–‘β–‘β–ˆβ–ˆβ•‘β–ˆβ–ˆβ•‘β–‘β–‘β–ˆβ–ˆβ•‘β–ˆβ–ˆβ•‘β•šβ–ˆβ–ˆβ•”β•β–ˆβ–ˆβ•‘
β–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ•¦β•β–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ•—β•šβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ•”β•β•šβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ•”β•β–ˆβ–ˆβ•‘β–‘β•šβ•β•β–‘β–ˆβ–ˆβ•‘
β•šβ•β•β•β•β•β•β–‘β•šβ•β•β•β•β•β•β•β–‘β•šβ•β•β•β•β•β–‘β–‘β•šβ•β•β•β•β•β–‘β•šβ•β•β–‘β–‘β–‘β–‘β–‘β•šβ•β•
*/

pragma solidity 0.8.19;

import {AssetCommitment} from "../lib/CommitmentsLib.sol";
import {IWhitelist} from "../interfaces/IWhitelist.sol";

enum State {
    Other,
    Commit,
    ReadyPreHoldSwap,
    PendingPreHoldSwap,
    Holding,
    ReadyPostHoldSwap,
    PendingPostHoldSwap,
    EmergencyExit,
    FinalWithdraw
}

interface IBloomPool {
    // Initialization errors
    error ZeroAddress();

    error NotSwapFacility();
    error InvalidOutToken(address outToken);

    error NotWhitelisted();
    error NoCommitToProcess();
    error CommitTooSmall();
    error OracleAnswerNegative();
    error CanOnlyWithdrawProcessedCommit(uint256 id);
    error NoCommitToWithdraw();

    error InvalidState(State current);

    error NotEmergencyHandler();

    event BorrowerCommit(address indexed owner, uint256 indexed id, uint256 amount, uint256 cumulativeAmountEnd);
    event LenderCommit(address indexed owner, uint256 indexed id, uint256 amount, uint256 cumulativeAmountEnd);
    event BorrowerCommitmentProcessed(
        address indexed owner, uint256 indexed id, uint256 includedAmount, uint256 excludedAmount
    );
    event LenderCommitmentProcessed(
        address indexed owner, uint256 indexed id, uint256 includedAmount, uint256 excludedAmount
    );
    event ExplictStateTransition(State prevState, State newState);
    event BorrowerWithdraw(address indexed owner, uint256 indexed id, uint256 amount);
    event LenderWithdraw(address indexed owner, uint256 sharesRedeemed, uint256 amount);

    event EmergencyWithdrawExecuted(address indexed from, address indexed to, uint256 amount);
    event EmergencyBurn(address indexed user, uint256 amount);

    /// @notice Initiates the pre-hold swap.
    function initiatePreHoldSwap(bytes32[] calldata proof) external;

    /// @notice Initiates the post-hold swap.
    function initiatePostHoldSwap(bytes32[] calldata proof) external;

    /**
     * @notice Deposits funds from the borrower committing them for the duration of the commit
     * phase.
     * @param amount The amount of tokens to deposit.
     * @param proof The whitelist proof data, format dependent on implementation.
     * @return newCommitmentId The commitment ID for the borrower's new deposit.
     */
    function depositBorrower(uint256 amount, bytes32[] calldata proof) external returns (uint256 newCommitmentId);
    /**
     * @notice Deposits funds from the lender committing them for the duration of the commit phase.
     * @param amount The amount of stablecoins to deposit.
     * @return newCommitmentId The commitment ID for the lender deposit.
     */
    function depositLender(uint256 amount) external returns (uint256 newCommitmentId);

    /**
     * @notice Sends all funds to the EmergencyHandler contract
     * @dev This is a permissioned function that can only be executed by the owner of the BloomPool
     *     It can only be executed when the pool is in Emergency mode.
     */
    function emergencyWithdraw() external;

    /**
     * @notice Burns TBY shares when users redeem from the EmergencyHandler
     * @dev This is a permissioned function that can only be called by the EmergencyHandler contract
     * @param from The account from which the TBY tokens will be burned from
     * @param amount The amount of tokens to burn
     */
    function executeEmergencyBurn(address from, uint256 amount) external;

    /**
     * @notice Processes a borrower's commit, calculates the included and excluded amounts, and refunds any unmatched amounts.
     * @param commitId The borrower's commitment ID.
     */
    function processBorrowerCommit(uint256 commitId) external;

    /**
     * @notice Processes a lender's commit, calculates the included and excluded amounts, mints shares, and refunds any unmatched amounts.
     * @param commitId The lender's commitment ID.
     */
    function processLenderCommit(uint256 commitId) external;

    /**
     * @notice Allows borrowers to withdraw their share of the returned stablecoins after the pool phase has ended and swaps have been completed.
     * @param id The borrower's commitment ID.
     */
    function withdrawBorrower(uint256 id) external;

    /**
     * @notice Allows lenders to withdraw their share of the returned stablecoins and earned interest after the pool phase has ended and swaps have been completed.
     * @param shares The number of lender shares to withdraw.
     */
    function withdrawLender(uint256 shares) external;

    function UNDERLYING_TOKEN() external view returns (address);
    function BILL_TOKEN() external view returns (address);
    function WHITELIST() external view returns (IWhitelist);
    function SWAP_FACILITY() external view returns (address);
    function TREASURY() external view returns (address);
    function LENDER_RETURN_BPS_FEED() external view returns (address);
    function LEVERAGE_BPS() external view returns (uint256);
    function MIN_BORROW_DEPOSIT() external view returns (uint256);
    function COMMIT_PHASE_END() external view returns (uint256);
    function PRE_HOLD_SWAP_TIMEOUT_END() external view returns (uint256);
    function POST_HOLD_SWAP_TIMEOUT_END() external view returns (uint256);
    function POOL_PHASE_END() external view returns (uint256);
    function POOL_PHASE_DURATION() external view returns (uint256);
    function LENDER_RETURN_FEE() external view returns (uint256);
    function BORROWER_RETURN_FEE() external view returns (uint256);

    function state() external view returns (State currentState);
    function totalMatchAmount() external view returns (uint256);

    function getBorrowCommitment(uint256 id) external view returns (AssetCommitment memory);
    function getLenderCommitment(uint256 id) external view returns (AssetCommitment memory);

    function getTotalBorrowCommitment()
        external
        view
        returns (uint256 totalAssetsCommited, uint256 totalCommitmentCount);
    function getTotalLendCommitment()
        external
        view
        returns (uint256 totalAssetsCommited, uint256 totalCommitmentCount);

    function getDistributionInfo()
        external
        view
        returns (
            uint128 borrowerDistribution,
            uint128 totalBorrowerShares,
            uint128 lenderDistribution,
            uint128 totalLenderShares
        );
}

File 4 of 13 : IEmergencyHandler.sol
// SPDX-License-Identifier: BUSL-1.1
/*
β–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ•—β–‘β–ˆβ–ˆβ•—β–‘β–‘β–‘β–‘β–‘β–‘β–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ•—β–‘β–‘β–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ•—β–‘β–ˆβ–ˆβ–ˆβ•—β–‘β–‘β–‘β–ˆβ–ˆβ–ˆβ•—
β–ˆβ–ˆβ•”β•β•β–ˆβ–ˆβ•—β–ˆβ–ˆβ•‘β–‘β–‘β–‘β–‘β–‘β–ˆβ–ˆβ•”β•β•β–ˆβ–ˆβ•—β–ˆβ–ˆβ•”β•β•β–ˆβ–ˆβ•—β–ˆβ–ˆβ–ˆβ–ˆβ•—β–‘β–ˆβ–ˆβ–ˆβ–ˆβ•‘
β–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ•¦β•β–ˆβ–ˆβ•‘β–‘β–‘β–‘β–‘β–‘β–ˆβ–ˆβ•‘β–‘β–‘β–ˆβ–ˆβ•‘β–ˆβ–ˆβ•‘β–‘β–‘β–ˆβ–ˆβ•‘β–ˆβ–ˆβ•”β–ˆβ–ˆβ–ˆβ–ˆβ•”β–ˆβ–ˆβ•‘
β–ˆβ–ˆβ•”β•β•β–ˆβ–ˆβ•—β–ˆβ–ˆβ•‘β–‘β–‘β–‘β–‘β–‘β–ˆβ–ˆβ•‘β–‘β–‘β–ˆβ–ˆβ•‘β–ˆβ–ˆβ•‘β–‘β–‘β–ˆβ–ˆβ•‘β–ˆβ–ˆβ•‘β•šβ–ˆβ–ˆβ•”β•β–ˆβ–ˆβ•‘
β–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ•¦β•β–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ•—β•šβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ•”β•β•šβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ•”β•β–ˆβ–ˆβ•‘β–‘β•šβ•β•β–‘β–ˆβ–ˆβ•‘
β•šβ•β•β•β•β•β•β–‘β•šβ•β•β•β•β•β•β•β–‘β•šβ•β•β•β•β•β–‘β–‘β•šβ•β•β•β•β•β–‘β•šβ•β•β–‘β–‘β–‘β–‘β–‘β•šβ•β•
*/

pragma solidity ^0.8.0;

import {IBloomPool} from "./IBloomPool.sol";
import {IOracle} from "./IOracle.sol";

interface IEmergencyHandler {

    error BorrowerAlreadyClaimed();
    error CallerNotBloomPool();
    error NoTokensToRedeem();
    error NotWhitelisted();
    error PoolNotRegistered();
    error PoolAlreadyRegistered();
    error InvalidOwner();

    struct Token {
        address token;
        uint256 rate;
        uint256 rateDecimals;
    }

    struct PoolAccounting {
        uint256 lenderDistro; // Underlying assets available for lenders
        uint256 borrowerDistro; // Underlying assets available for borrowers
        uint256 lenderShares; // Total shares available for lenders
        uint256 borrowerShares; // Total shares available for borrowers
        uint256 totalUnderlying; // Total underlying assets from the pool
        uint256 totalBill; // Total bill assets from the pool
    }

    struct RedemptionInfo {
        Token underlyingToken;
        Token billToken;
        PoolAccounting accounting;
        bool yieldGenerated;
    }

    struct ClaimStatus {
        bool claimed;
        uint256 amountRemaining;
    }

    /**
     * @notice Redeem underlying assets for lenders of a BloomPool in Emergency Exit mode
     * @param _pool BloomPool that the funds in the emergency handler contract orginated from
     * @return amount of underlying assets redeemed
     */
    function redeem(IBloomPool _pool) external returns (uint256);

    /**
     * @notice  Redeem underlying assets for borrowers of a BloomPool in Emergency Exit mode
     * @param pool BloomPool that the funds in the emergency handler contract orginated from
     * @param id Id of the borrowers commit in the corresponding BloomPool
     * @return amount of underlying assets redeemed
     */
    function redeem(IBloomPool pool, uint256 id) external returns (uint256);

    /**
     * @notice Allows Market Makers to swap underlying assets for bill tokens
     * @param pool BloomPool that the funds in the emergency handler contract orginated from
     * @param underlyingIn Amount of underlying assets to swap
     * @param proof Whitelist proof data, prevents non-approved maket makers from swapping
     * @return amount of bill tokens received
     */
    function swap(IBloomPool pool, uint256 underlyingIn, bytes32[] calldata proof) external returns (uint256);
    
    /**
     * @notice Registers a Bloom Pool in the Emergency Handler
     * @param redemptionInfo RedemptionInfo struct containing the pool's accounting and oracle information
    */
    function registerPool(RedemptionInfo memory redemptionInfo) external;
}

File 5 of 13 : ISwapRecipient.sol
// SPDX-License-Identifier: BUSL-1.1
/*
β–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ•—β–‘β–ˆβ–ˆβ•—β–‘β–‘β–‘β–‘β–‘β–‘β–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ•—β–‘β–‘β–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ•—β–‘β–ˆβ–ˆβ–ˆβ•—β–‘β–‘β–‘β–ˆβ–ˆβ–ˆβ•—
β–ˆβ–ˆβ•”β•β•β–ˆβ–ˆβ•—β–ˆβ–ˆβ•‘β–‘β–‘β–‘β–‘β–‘β–ˆβ–ˆβ•”β•β•β–ˆβ–ˆβ•—β–ˆβ–ˆβ•”β•β•β–ˆβ–ˆβ•—β–ˆβ–ˆβ–ˆβ–ˆβ•—β–‘β–ˆβ–ˆβ–ˆβ–ˆβ•‘
β–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ•¦β•β–ˆβ–ˆβ•‘β–‘β–‘β–‘β–‘β–‘β–ˆβ–ˆβ•‘β–‘β–‘β–ˆβ–ˆβ•‘β–ˆβ–ˆβ•‘β–‘β–‘β–ˆβ–ˆβ•‘β–ˆβ–ˆβ•”β–ˆβ–ˆβ–ˆβ–ˆβ•”β–ˆβ–ˆβ•‘
β–ˆβ–ˆβ•”β•β•β–ˆβ–ˆβ•—β–ˆβ–ˆβ•‘β–‘β–‘β–‘β–‘β–‘β–ˆβ–ˆβ•‘β–‘β–‘β–ˆβ–ˆβ•‘β–ˆβ–ˆβ•‘β–‘β–‘β–ˆβ–ˆβ•‘β–ˆβ–ˆβ•‘β•šβ–ˆβ–ˆβ•”β•β–ˆβ–ˆβ•‘
β–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ•¦β•β–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ•—β•šβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ•”β•β•šβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ•”β•β–ˆβ–ˆβ•‘β–‘β•šβ•β•β–‘β–ˆβ–ˆβ•‘
β•šβ•β•β•β•β•β•β–‘β•šβ•β•β•β•β•β•β•β–‘β•šβ•β•β•β•β•β–‘β–‘β•šβ•β•β•β•β•β–‘β•šβ•β•β–‘β–‘β–‘β–‘β–‘β•šβ•β•
*/

pragma solidity ^0.8.0;

interface ISwapRecipient {
    /**
     * @notice Callback that is invoked by a swap facility when a trade is completed.
     * @param outToken The address of the token that's coming from the swap.
     * @param outAmount The amount of tokens that was transferred separately.
     */
    function completeSwap(address outToken, uint256 outAmount) external;
}

File 6 of 13 : SafeTransferLib.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.4;

/// @notice Safe ETH and ERC20 transfer library that gracefully handles missing return values.
/// @author Solady (https://github.com/vectorized/solady/blob/main/src/utils/SafeTransferLib.sol)
/// @author Modified from Solmate (https://github.com/transmissions11/solmate/blob/main/src/utils/SafeTransferLib.sol)
/// @dev Caution! This library won't check that a token has code, responsibility is delegated to the caller.
library SafeTransferLib {
    /*´:°β€’.°+.*β€’´.*:˚.°*.Λšβ€’´.°:°β€’.°β€’.*β€’´.*:˚.°*.Λšβ€’´.°:°β€’.°+.*β€’´.*:*/
    /*                       CUSTOM ERRORS                        */
    /*.β€’°:°.´+˚.*°.˚:*.´β€’*.+°.β€’°:´*.´β€’*.β€’°.β€’°:°.´:β€’Λš°.*°.˚:*.´+°.β€’*/

    /// @dev The ETH transfer has failed.
    error ETHTransferFailed();

    /// @dev The ERC20 `transferFrom` has failed.
    error TransferFromFailed();

    /// @dev The ERC20 `transfer` has failed.
    error TransferFailed();

    /// @dev The ERC20 `approve` has failed.
    error ApproveFailed();

    /*´:°β€’.°+.*β€’´.*:˚.°*.Λšβ€’´.°:°β€’.°β€’.*β€’´.*:˚.°*.Λšβ€’´.°:°β€’.°+.*β€’´.*:*/
    /*                         CONSTANTS                          */
    /*.β€’°:°.´+˚.*°.˚:*.´β€’*.+°.β€’°:´*.´β€’*.β€’°.β€’°:°.´:β€’Λš°.*°.˚:*.´+°.β€’*/

    /// @dev Suggested gas stipend for contract receiving ETH
    /// that disallows any storage writes.
    uint256 internal constant _GAS_STIPEND_NO_STORAGE_WRITES = 2300;

    /// @dev Suggested gas stipend for contract receiving ETH to perform a few
    /// storage reads and writes, but low enough to prevent griefing.
    /// Multiply by a small constant (e.g. 2), if needed.
    uint256 internal constant _GAS_STIPEND_NO_GRIEF = 100000;

    /*´:°β€’.°+.*β€’´.*:˚.°*.Λšβ€’´.°:°β€’.°β€’.*β€’´.*:˚.°*.Λšβ€’´.°:°β€’.°+.*β€’´.*:*/
    /*                       ETH OPERATIONS                       */
    /*.β€’°:°.´+˚.*°.˚:*.´β€’*.+°.β€’°:´*.´β€’*.β€’°.β€’°:°.´:β€’Λš°.*°.˚:*.´+°.β€’*/

    /// @dev Sends `amount` (in wei) ETH to `to`.
    /// Reverts upon failure.
    function safeTransferETH(address to, uint256 amount) internal {
        /// @solidity memory-safe-assembly
        assembly {
            // Transfer the ETH and check if it succeeded or not.
            if iszero(call(gas(), to, amount, 0, 0, 0, 0)) {
                // Store the function selector of `ETHTransferFailed()`.
                mstore(0x00, 0xb12d13eb)
                // Revert with (offset, size).
                revert(0x1c, 0x04)
            }
        }
    }

    /// @dev Force sends `amount` (in wei) ETH to `to`, with a `gasStipend`.
    /// The `gasStipend` can be set to a low enough value to prevent
    /// storage writes or gas griefing.
    ///
    /// If sending via the normal procedure fails, force sends the ETH by
    /// creating a temporary contract which uses `SELFDESTRUCT` to force send the ETH.
    ///
    /// Reverts if the current contract has insufficient balance.
    function forceSafeTransferETH(address to, uint256 amount, uint256 gasStipend) internal {
        /// @solidity memory-safe-assembly
        assembly {
            // If insufficient balance, revert.
            if lt(selfbalance(), amount) {
                // Store the function selector of `ETHTransferFailed()`.
                mstore(0x00, 0xb12d13eb)
                // Revert with (offset, size).
                revert(0x1c, 0x04)
            }
            // Transfer the ETH and check if it succeeded or not.
            if iszero(call(gasStipend, to, amount, 0, 0, 0, 0)) {
                mstore(0x00, to) // Store the address in scratch space.
                mstore8(0x0b, 0x73) // Opcode `PUSH20`.
                mstore8(0x20, 0xff) // Opcode `SELFDESTRUCT`.
                // We can directly use `SELFDESTRUCT` in the contract creation.
                // Compatible with `SENDALL`: https://eips.ethereum.org/EIPS/eip-4758
                if iszero(create(amount, 0x0b, 0x16)) {
                    // For better gas estimation.
                    if iszero(gt(gas(), 1000000)) { revert(0, 0) }
                }
            }
        }
    }

    /// @dev Force sends `amount` (in wei) ETH to `to`, with a gas stipend
    /// equal to `_GAS_STIPEND_NO_GRIEF`. This gas stipend is a reasonable default
    /// for 99% of cases and can be overriden with the three-argument version of this
    /// function if necessary.
    ///
    /// If sending via the normal procedure fails, force sends the ETH by
    /// creating a temporary contract which uses `SELFDESTRUCT` to force send the ETH.
    ///
    /// Reverts if the current contract has insufficient balance.
    function forceSafeTransferETH(address to, uint256 amount) internal {
        // Manually inlined because the compiler doesn't inline functions with branches.
        /// @solidity memory-safe-assembly
        assembly {
            // If insufficient balance, revert.
            if lt(selfbalance(), amount) {
                // Store the function selector of `ETHTransferFailed()`.
                mstore(0x00, 0xb12d13eb)
                // Revert with (offset, size).
                revert(0x1c, 0x04)
            }
            // Transfer the ETH and check if it succeeded or not.
            if iszero(call(_GAS_STIPEND_NO_GRIEF, to, amount, 0, 0, 0, 0)) {
                mstore(0x00, to) // Store the address in scratch space.
                mstore8(0x0b, 0x73) // Opcode `PUSH20`.
                mstore8(0x20, 0xff) // Opcode `SELFDESTRUCT`.
                // We can directly use `SELFDESTRUCT` in the contract creation.
                // Compatible with `SENDALL`: https://eips.ethereum.org/EIPS/eip-4758
                if iszero(create(amount, 0x0b, 0x16)) {
                    // For better gas estimation.
                    if iszero(gt(gas(), 1000000)) { revert(0, 0) }
                }
            }
        }
    }

    /// @dev Sends `amount` (in wei) ETH to `to`, with a `gasStipend`.
    /// The `gasStipend` can be set to a low enough value to prevent
    /// storage writes or gas griefing.
    ///
    /// Simply use `gasleft()` for `gasStipend` if you don't need a gas stipend.
    ///
    /// Note: Does NOT revert upon failure.
    /// Returns whether the transfer of ETH is successful instead.
    function trySafeTransferETH(address to, uint256 amount, uint256 gasStipend)
        internal
        returns (bool success)
    {
        /// @solidity memory-safe-assembly
        assembly {
            // Transfer the ETH and check if it succeeded or not.
            success := call(gasStipend, to, amount, 0, 0, 0, 0)
        }
    }

    /*´:°β€’.°+.*β€’´.*:˚.°*.Λšβ€’´.°:°β€’.°β€’.*β€’´.*:˚.°*.Λšβ€’´.°:°β€’.°+.*β€’´.*:*/
    /*                      ERC20 OPERATIONS                      */
    /*.β€’°:°.´+˚.*°.˚:*.´β€’*.+°.β€’°:´*.´β€’*.β€’°.β€’°:°.´:β€’Λš°.*°.˚:*.´+°.β€’*/

    /// @dev Sends `amount` of ERC20 `token` from `from` to `to`.
    /// Reverts upon failure.
    ///
    /// The `from` account must have at least `amount` approved for
    /// the current contract to manage.
    function safeTransferFrom(address token, address from, address to, uint256 amount) internal {
        /// @solidity memory-safe-assembly
        assembly {
            let m := mload(0x40) // Cache the free memory pointer.

            mstore(0x60, amount) // Store the `amount` argument.
            mstore(0x40, to) // Store the `to` argument.
            mstore(0x2c, shl(96, from)) // Store the `from` argument.
            // Store the function selector of `transferFrom(address,address,uint256)`.
            mstore(0x0c, 0x23b872dd000000000000000000000000)

            if iszero(
                and( // The arguments of `and` are evaluated from right to left.
                    // Set success to whether the call reverted, if not we check it either
                    // returned exactly 1 (can't just be non-zero data), or had no return data.
                    or(eq(mload(0x00), 1), iszero(returndatasize())),
                    call(gas(), token, 0, 0x1c, 0x64, 0x00, 0x20)
                )
            ) {
                // Store the function selector of `TransferFromFailed()`.
                mstore(0x00, 0x7939f424)
                // Revert with (offset, size).
                revert(0x1c, 0x04)
            }

            mstore(0x60, 0) // Restore the zero slot to zero.
            mstore(0x40, m) // Restore the free memory pointer.
        }
    }

    /// @dev Sends all of ERC20 `token` from `from` to `to`.
    /// Reverts upon failure.
    ///
    /// The `from` account must have at least `amount` approved for
    /// the current contract to manage.
    function safeTransferAllFrom(address token, address from, address to)
        internal
        returns (uint256 amount)
    {
        /// @solidity memory-safe-assembly
        assembly {
            let m := mload(0x40) // Cache the free memory pointer.

            mstore(0x40, to) // Store the `to` argument.
            mstore(0x2c, shl(96, from)) // Store the `from` argument.
            // Store the function selector of `balanceOf(address)`.
            mstore(0x0c, 0x70a08231000000000000000000000000)
            if iszero(
                and( // The arguments of `and` are evaluated from right to left.
                    gt(returndatasize(), 0x1f), // At least 32 bytes returned.
                    staticcall(gas(), token, 0x1c, 0x24, 0x60, 0x20)
                )
            ) {
                // Store the function selector of `TransferFromFailed()`.
                mstore(0x00, 0x7939f424)
                // Revert with (offset, size).
                revert(0x1c, 0x04)
            }

            // Store the function selector of `transferFrom(address,address,uint256)`.
            mstore(0x00, 0x23b872dd)
            // The `amount` argument is already written to the memory word at 0x6c.
            amount := mload(0x60)

            if iszero(
                and( // The arguments of `and` are evaluated from right to left.
                    // Set success to whether the call reverted, if not we check it either
                    // returned exactly 1 (can't just be non-zero data), or had no return data.
                    or(eq(mload(0x00), 1), iszero(returndatasize())),
                    call(gas(), token, 0, 0x1c, 0x64, 0x00, 0x20)
                )
            ) {
                // Store the function selector of `TransferFromFailed()`.
                mstore(0x00, 0x7939f424)
                // Revert with (offset, size).
                revert(0x1c, 0x04)
            }

            mstore(0x60, 0) // Restore the zero slot to zero.
            mstore(0x40, m) // Restore the free memory pointer.
        }
    }

    /// @dev Sends `amount` of ERC20 `token` from the current contract to `to`.
    /// Reverts upon failure.
    function safeTransfer(address token, address to, uint256 amount) internal {
        /// @solidity memory-safe-assembly
        assembly {
            mstore(0x14, to) // Store the `to` argument.
            mstore(0x34, amount) // Store the `amount` argument.
            // Store the function selector of `transfer(address,uint256)`.
            mstore(0x00, 0xa9059cbb000000000000000000000000)

            if iszero(
                and( // The arguments of `and` are evaluated from right to left.
                    // Set success to whether the call reverted, if not we check it either
                    // returned exactly 1 (can't just be non-zero data), or had no return data.
                    or(eq(mload(0x00), 1), iszero(returndatasize())),
                    call(gas(), token, 0, 0x10, 0x44, 0x00, 0x20)
                )
            ) {
                // Store the function selector of `TransferFailed()`.
                mstore(0x00, 0x90b8ec18)
                // Revert with (offset, size).
                revert(0x1c, 0x04)
            }
            // Restore the part of the free memory pointer that was overwritten.
            mstore(0x34, 0)
        }
    }

    /// @dev Sends all of ERC20 `token` from the current contract to `to`.
    /// Reverts upon failure.
    function safeTransferAll(address token, address to) internal returns (uint256 amount) {
        /// @solidity memory-safe-assembly
        assembly {
            mstore(0x00, 0x70a08231) // Store the function selector of `balanceOf(address)`.
            mstore(0x20, address()) // Store the address of the current contract.
            if iszero(
                and( // The arguments of `and` are evaluated from right to left.
                    gt(returndatasize(), 0x1f), // At least 32 bytes returned.
                    staticcall(gas(), token, 0x1c, 0x24, 0x34, 0x20)
                )
            ) {
                // Store the function selector of `TransferFailed()`.
                mstore(0x00, 0x90b8ec18)
                // Revert with (offset, size).
                revert(0x1c, 0x04)
            }

            mstore(0x14, to) // Store the `to` argument.
            // The `amount` argument is already written to the memory word at 0x34.
            amount := mload(0x34)
            // Store the function selector of `transfer(address,uint256)`.
            mstore(0x00, 0xa9059cbb000000000000000000000000)

            if iszero(
                and( // The arguments of `and` are evaluated from right to left.
                    // Set success to whether the call reverted, if not we check it either
                    // returned exactly 1 (can't just be non-zero data), or had no return data.
                    or(eq(mload(0x00), 1), iszero(returndatasize())),
                    call(gas(), token, 0, 0x10, 0x44, 0x00, 0x20)
                )
            ) {
                // Store the function selector of `TransferFailed()`.
                mstore(0x00, 0x90b8ec18)
                // Revert with (offset, size).
                revert(0x1c, 0x04)
            }
            // Restore the part of the free memory pointer that was overwritten.
            mstore(0x34, 0)
        }
    }

    /// @dev Sets `amount` of ERC20 `token` for `to` to manage on behalf of the current contract.
    /// Reverts upon failure.
    function safeApprove(address token, address to, uint256 amount) internal {
        /// @solidity memory-safe-assembly
        assembly {
            mstore(0x14, to) // Store the `to` argument.
            mstore(0x34, amount) // Store the `amount` argument.
            // Store the function selector of `approve(address,uint256)`.
            mstore(0x00, 0x095ea7b3000000000000000000000000)

            if iszero(
                and( // The arguments of `and` are evaluated from right to left.
                    // Set success to whether the call reverted, if not we check it either
                    // returned exactly 1 (can't just be non-zero data), or had no return data.
                    or(eq(mload(0x00), 1), iszero(returndatasize())),
                    call(gas(), token, 0, 0x10, 0x44, 0x00, 0x20)
                )
            ) {
                // Store the function selector of `ApproveFailed()`.
                mstore(0x00, 0x3e3f8f73)
                // Revert with (offset, size).
                revert(0x1c, 0x04)
            }
            // Restore the part of the free memory pointer that was overwritten.
            mstore(0x34, 0)
        }
    }

    /// @dev Returns the amount of ERC20 `token` owned by `account`.
    /// Returns zero if the `token` does not exist.
    function balanceOf(address token, address account) internal view returns (uint256 amount) {
        /// @solidity memory-safe-assembly
        assembly {
            mstore(0x14, account) // Store the `account` argument.
            // Store the function selector of `balanceOf(address)`.
            mstore(0x00, 0x70a08231000000000000000000000000)
            amount :=
                mul(
                    mload(0x20),
                    and( // The arguments of `and` are evaluated from right to left.
                        gt(returndatasize(), 0x1f), // At least 32 bytes returned.
                        staticcall(gas(), token, 0x10, 0x24, 0x20, 0x20)
                    )
                )
        }
    }
}

File 7 of 13 : SafeCastLib.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.4;

/// @notice Safe integer casting library that reverts on overflow.
/// @author Solady (https://github.com/vectorized/solady/blob/main/src/utils/SafeCastLib.sol)
/// @author Modified from OpenZeppelin (https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/contracts/utils/math/SafeCast.sol)
library SafeCastLib {
    /*´:°β€’.°+.*β€’´.*:˚.°*.Λšβ€’´.°:°β€’.°β€’.*β€’´.*:˚.°*.Λšβ€’´.°:°β€’.°+.*β€’´.*:*/
    /*                       CUSTOM ERRORS                        */
    /*.β€’°:°.´+˚.*°.˚:*.´β€’*.+°.β€’°:´*.´β€’*.β€’°.β€’°:°.´:β€’Λš°.*°.˚:*.´+°.β€’*/

    error Overflow();

    /*´:°β€’.°+.*β€’´.*:˚.°*.Λšβ€’´.°:°β€’.°β€’.*β€’´.*:˚.°*.Λšβ€’´.°:°β€’.°+.*β€’´.*:*/
    /*          UNSIGNED INTEGER SAFE CASTING OPERATIONS          */
    /*.β€’°:°.´+˚.*°.˚:*.´β€’*.+°.β€’°:´*.´β€’*.β€’°.β€’°:°.´:β€’Λš°.*°.˚:*.´+°.β€’*/

    function toUint8(uint256 x) internal pure returns (uint8) {
        if (x >= 1 << 8) _revertOverflow();
        return uint8(x);
    }

    function toUint16(uint256 x) internal pure returns (uint16) {
        if (x >= 1 << 16) _revertOverflow();
        return uint16(x);
    }

    function toUint24(uint256 x) internal pure returns (uint24) {
        if (x >= 1 << 24) _revertOverflow();
        return uint24(x);
    }

    function toUint32(uint256 x) internal pure returns (uint32) {
        if (x >= 1 << 32) _revertOverflow();
        return uint32(x);
    }

    function toUint40(uint256 x) internal pure returns (uint40) {
        if (x >= 1 << 40) _revertOverflow();
        return uint40(x);
    }

    function toUint48(uint256 x) internal pure returns (uint48) {
        if (x >= 1 << 48) _revertOverflow();
        return uint48(x);
    }

    function toUint56(uint256 x) internal pure returns (uint56) {
        if (x >= 1 << 56) _revertOverflow();
        return uint56(x);
    }

    function toUint64(uint256 x) internal pure returns (uint64) {
        if (x >= 1 << 64) _revertOverflow();
        return uint64(x);
    }

    function toUint72(uint256 x) internal pure returns (uint72) {
        if (x >= 1 << 72) _revertOverflow();
        return uint72(x);
    }

    function toUint80(uint256 x) internal pure returns (uint80) {
        if (x >= 1 << 80) _revertOverflow();
        return uint80(x);
    }

    function toUint88(uint256 x) internal pure returns (uint88) {
        if (x >= 1 << 88) _revertOverflow();
        return uint88(x);
    }

    function toUint96(uint256 x) internal pure returns (uint96) {
        if (x >= 1 << 96) _revertOverflow();
        return uint96(x);
    }

    function toUint104(uint256 x) internal pure returns (uint104) {
        if (x >= 1 << 104) _revertOverflow();
        return uint104(x);
    }

    function toUint112(uint256 x) internal pure returns (uint112) {
        if (x >= 1 << 112) _revertOverflow();
        return uint112(x);
    }

    function toUint120(uint256 x) internal pure returns (uint120) {
        if (x >= 1 << 120) _revertOverflow();
        return uint120(x);
    }

    function toUint128(uint256 x) internal pure returns (uint128) {
        if (x >= 1 << 128) _revertOverflow();
        return uint128(x);
    }

    function toUint136(uint256 x) internal pure returns (uint136) {
        if (x >= 1 << 136) _revertOverflow();
        return uint136(x);
    }

    function toUint144(uint256 x) internal pure returns (uint144) {
        if (x >= 1 << 144) _revertOverflow();
        return uint144(x);
    }

    function toUint152(uint256 x) internal pure returns (uint152) {
        if (x >= 1 << 152) _revertOverflow();
        return uint152(x);
    }

    function toUint160(uint256 x) internal pure returns (uint160) {
        if (x >= 1 << 160) _revertOverflow();
        return uint160(x);
    }

    function toUint168(uint256 x) internal pure returns (uint168) {
        if (x >= 1 << 168) _revertOverflow();
        return uint168(x);
    }

    function toUint176(uint256 x) internal pure returns (uint176) {
        if (x >= 1 << 176) _revertOverflow();
        return uint176(x);
    }

    function toUint184(uint256 x) internal pure returns (uint184) {
        if (x >= 1 << 184) _revertOverflow();
        return uint184(x);
    }

    function toUint192(uint256 x) internal pure returns (uint192) {
        if (x >= 1 << 192) _revertOverflow();
        return uint192(x);
    }

    function toUint200(uint256 x) internal pure returns (uint200) {
        if (x >= 1 << 200) _revertOverflow();
        return uint200(x);
    }

    function toUint208(uint256 x) internal pure returns (uint208) {
        if (x >= 1 << 208) _revertOverflow();
        return uint208(x);
    }

    function toUint216(uint256 x) internal pure returns (uint216) {
        if (x >= 1 << 216) _revertOverflow();
        return uint216(x);
    }

    function toUint224(uint256 x) internal pure returns (uint224) {
        if (x >= 1 << 224) _revertOverflow();
        return uint224(x);
    }

    function toUint232(uint256 x) internal pure returns (uint232) {
        if (x >= 1 << 232) _revertOverflow();
        return uint232(x);
    }

    function toUint240(uint256 x) internal pure returns (uint240) {
        if (x >= 1 << 240) _revertOverflow();
        return uint240(x);
    }

    function toUint248(uint256 x) internal pure returns (uint248) {
        if (x >= 1 << 248) _revertOverflow();
        return uint248(x);
    }

    /*´:°β€’.°+.*β€’´.*:˚.°*.Λšβ€’´.°:°β€’.°β€’.*β€’´.*:˚.°*.Λšβ€’´.°:°β€’.°+.*β€’´.*:*/
    /*           SIGNED INTEGER SAFE CASTING OPERATIONS           */
    /*.β€’°:°.´+˚.*°.˚:*.´β€’*.+°.β€’°:´*.´β€’*.β€’°.β€’°:°.´:β€’Λš°.*°.˚:*.´+°.β€’*/

    function toInt8(int256 x) internal pure returns (int8) {
        int8 y = int8(x);
        if (x != y) _revertOverflow();
        return y;
    }

    function toInt16(int256 x) internal pure returns (int16) {
        int16 y = int16(x);
        if (x != y) _revertOverflow();
        return y;
    }

    function toInt24(int256 x) internal pure returns (int24) {
        int24 y = int24(x);
        if (x != y) _revertOverflow();
        return y;
    }

    function toInt32(int256 x) internal pure returns (int32) {
        int32 y = int32(x);
        if (x != y) _revertOverflow();
        return y;
    }

    function toInt40(int256 x) internal pure returns (int40) {
        int40 y = int40(x);
        if (x != y) _revertOverflow();
        return y;
    }

    function toInt48(int256 x) internal pure returns (int48) {
        int48 y = int48(x);
        if (x != y) _revertOverflow();
        return y;
    }

    function toInt56(int256 x) internal pure returns (int56) {
        int56 y = int56(x);
        if (x != y) _revertOverflow();
        return y;
    }

    function toInt64(int256 x) internal pure returns (int64) {
        int64 y = int64(x);
        if (x != y) _revertOverflow();
        return y;
    }

    function toInt72(int256 x) internal pure returns (int72) {
        int72 y = int72(x);
        if (x != y) _revertOverflow();
        return y;
    }

    function toInt80(int256 x) internal pure returns (int80) {
        int80 y = int80(x);
        if (x != y) _revertOverflow();
        return y;
    }

    function toInt88(int256 x) internal pure returns (int88) {
        int88 y = int88(x);
        if (x != y) _revertOverflow();
        return y;
    }

    function toInt96(int256 x) internal pure returns (int96) {
        int96 y = int96(x);
        if (x != y) _revertOverflow();
        return y;
    }

    function toInt104(int256 x) internal pure returns (int104) {
        int104 y = int104(x);
        if (x != y) _revertOverflow();
        return y;
    }

    function toInt112(int256 x) internal pure returns (int112) {
        int112 y = int112(x);
        if (x != y) _revertOverflow();
        return y;
    }

    function toInt120(int256 x) internal pure returns (int120) {
        int120 y = int120(x);
        if (x != y) _revertOverflow();
        return y;
    }

    function toInt128(int256 x) internal pure returns (int128) {
        int128 y = int128(x);
        if (x != y) _revertOverflow();
        return y;
    }

    function toInt136(int256 x) internal pure returns (int136) {
        int136 y = int136(x);
        if (x != y) _revertOverflow();
        return y;
    }

    function toInt144(int256 x) internal pure returns (int144) {
        int144 y = int144(x);
        if (x != y) _revertOverflow();
        return y;
    }

    function toInt152(int256 x) internal pure returns (int152) {
        int152 y = int152(x);
        if (x != y) _revertOverflow();
        return y;
    }

    function toInt160(int256 x) internal pure returns (int160) {
        int160 y = int160(x);
        if (x != y) _revertOverflow();
        return y;
    }

    function toInt168(int256 x) internal pure returns (int168) {
        int168 y = int168(x);
        if (x != y) _revertOverflow();
        return y;
    }

    function toInt176(int256 x) internal pure returns (int176) {
        int176 y = int176(x);
        if (x != y) _revertOverflow();
        return y;
    }

    function toInt184(int256 x) internal pure returns (int184) {
        int184 y = int184(x);
        if (x != y) _revertOverflow();
        return y;
    }

    function toInt192(int256 x) internal pure returns (int192) {
        int192 y = int192(x);
        if (x != y) _revertOverflow();
        return y;
    }

    function toInt200(int256 x) internal pure returns (int200) {
        int200 y = int200(x);
        if (x != y) _revertOverflow();
        return y;
    }

    function toInt208(int256 x) internal pure returns (int208) {
        int208 y = int208(x);
        if (x != y) _revertOverflow();
        return y;
    }

    function toInt216(int256 x) internal pure returns (int216) {
        int216 y = int216(x);
        if (x != y) _revertOverflow();
        return y;
    }

    function toInt224(int256 x) internal pure returns (int224) {
        int224 y = int224(x);
        if (x != y) _revertOverflow();
        return y;
    }

    function toInt232(int256 x) internal pure returns (int232) {
        int232 y = int232(x);
        if (x != y) _revertOverflow();
        return y;
    }

    function toInt240(int256 x) internal pure returns (int240) {
        int240 y = int240(x);
        if (x != y) _revertOverflow();
        return y;
    }

    function toInt248(int256 x) internal pure returns (int248) {
        int248 y = int248(x);
        if (x != y) _revertOverflow();
        return y;
    }

    /*´:°β€’.°+.*β€’´.*:˚.°*.Λšβ€’´.°:°β€’.°β€’.*β€’´.*:˚.°*.Λšβ€’´.°:°β€’.°+.*β€’´.*:*/
    /*                      PRIVATE HELPERS                       */
    /*.β€’°:°.´+˚.*°.˚:*.´β€’*.+°.β€’°:´*.´β€’*.β€’°.β€’°:°.´:β€’Λš°.*°.˚:*.´+°.β€’*/

    function _revertOverflow() private pure {
        /// @solidity memory-safe-assembly
        assembly {
            // Store the function selector of `Overflow()`.
            mstore(0x00, 0x35278d12)
            // Revert with (offset, size).
            revert(0x1c, 0x04)
        }
    }
}

File 8 of 13 : FixedPointMathLib.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.4;

/// @notice Arithmetic library with operations for fixed-point numbers.
/// @author Solady (https://github.com/vectorized/solady/blob/main/src/utils/FixedPointMathLib.sol)
/// @author Modified from Solmate (https://github.com/transmissions11/solmate/blob/main/src/utils/FixedPointMathLib.sol)
library FixedPointMathLib {
    /*´:°β€’.°+.*β€’´.*:˚.°*.Λšβ€’´.°:°β€’.°β€’.*β€’´.*:˚.°*.Λšβ€’´.°:°β€’.°+.*β€’´.*:*/
    /*                       CUSTOM ERRORS                        */
    /*.β€’°:°.´+˚.*°.˚:*.´β€’*.+°.β€’°:´*.´β€’*.β€’°.β€’°:°.´:β€’Λš°.*°.˚:*.´+°.β€’*/

    /// @dev The operation failed, as the output exceeds the maximum value of uint256.
    error ExpOverflow();

    /// @dev The operation failed, as the output exceeds the maximum value of uint256.
    error FactorialOverflow();

    /// @dev The operation failed, due to an multiplication overflow.
    error MulWadFailed();

    /// @dev The operation failed, either due to a
    /// multiplication overflow, or a division by a zero.
    error DivWadFailed();

    /// @dev The multiply-divide operation failed, either due to a
    /// multiplication overflow, or a division by a zero.
    error MulDivFailed();

    /// @dev The division failed, as the denominator is zero.
    error DivFailed();

    /// @dev The full precision multiply-divide operation failed, either due
    /// to the result being larger than 256 bits, or a division by a zero.
    error FullMulDivFailed();

    /// @dev The output is undefined, as the input is less-than-or-equal to zero.
    error LnWadUndefined();

    /// @dev The output is undefined, as the input is zero.
    error Log2Undefined();

    /*´:°β€’.°+.*β€’´.*:˚.°*.Λšβ€’´.°:°β€’.°β€’.*β€’´.*:˚.°*.Λšβ€’´.°:°β€’.°+.*β€’´.*:*/
    /*                         CONSTANTS                          */
    /*.β€’°:°.´+˚.*°.˚:*.´β€’*.+°.β€’°:´*.´β€’*.β€’°.β€’°:°.´:β€’Λš°.*°.˚:*.´+°.β€’*/

    /// @dev The scalar of ETH and most ERC20s.
    uint256 internal constant WAD = 1e18;

    /*´:°β€’.°+.*β€’´.*:˚.°*.Λšβ€’´.°:°β€’.°β€’.*β€’´.*:˚.°*.Λšβ€’´.°:°β€’.°+.*β€’´.*:*/
    /*              SIMPLIFIED FIXED POINT OPERATIONS             */
    /*.β€’°:°.´+˚.*°.˚:*.´β€’*.+°.β€’°:´*.´β€’*.β€’°.β€’°:°.´:β€’Λš°.*°.˚:*.´+°.β€’*/

    /// @dev Equivalent to `(x * y) / WAD` rounded down.
    function mulWad(uint256 x, uint256 y) internal pure returns (uint256 z) {
        /// @solidity memory-safe-assembly
        assembly {
            // Equivalent to `require(y == 0 || x <= type(uint256).max / y)`.
            if mul(y, gt(x, div(not(0), y))) {
                // Store the function selector of `MulWadFailed()`.
                mstore(0x00, 0xbac65e5b)
                // Revert with (offset, size).
                revert(0x1c, 0x04)
            }
            z := div(mul(x, y), WAD)
        }
    }

    /// @dev Equivalent to `(x * y) / WAD` rounded up.
    function mulWadUp(uint256 x, uint256 y) internal pure returns (uint256 z) {
        /// @solidity memory-safe-assembly
        assembly {
            // Equivalent to `require(y == 0 || x <= type(uint256).max / y)`.
            if mul(y, gt(x, div(not(0), y))) {
                // Store the function selector of `MulWadFailed()`.
                mstore(0x00, 0xbac65e5b)
                // Revert with (offset, size).
                revert(0x1c, 0x04)
            }
            z := add(iszero(iszero(mod(mul(x, y), WAD))), div(mul(x, y), WAD))
        }
    }

    /// @dev Equivalent to `(x * WAD) / y` rounded down.
    function divWad(uint256 x, uint256 y) internal pure returns (uint256 z) {
        /// @solidity memory-safe-assembly
        assembly {
            // Equivalent to `require(y != 0 && (WAD == 0 || x <= type(uint256).max / WAD))`.
            if iszero(mul(y, iszero(mul(WAD, gt(x, div(not(0), WAD)))))) {
                // Store the function selector of `DivWadFailed()`.
                mstore(0x00, 0x7c5f487d)
                // Revert with (offset, size).
                revert(0x1c, 0x04)
            }
            z := div(mul(x, WAD), y)
        }
    }

    /// @dev Equivalent to `(x * WAD) / y` rounded up.
    function divWadUp(uint256 x, uint256 y) internal pure returns (uint256 z) {
        /// @solidity memory-safe-assembly
        assembly {
            // Equivalent to `require(y != 0 && (WAD == 0 || x <= type(uint256).max / WAD))`.
            if iszero(mul(y, iszero(mul(WAD, gt(x, div(not(0), WAD)))))) {
                // Store the function selector of `DivWadFailed()`.
                mstore(0x00, 0x7c5f487d)
                // Revert with (offset, size).
                revert(0x1c, 0x04)
            }
            z := add(iszero(iszero(mod(mul(x, WAD), y))), div(mul(x, WAD), y))
        }
    }

    /// @dev Equivalent to `x` to the power of `y`.
    /// because `x ** y = (e ** ln(x)) ** y = e ** (ln(x) * y)`.
    function powWad(int256 x, int256 y) internal pure returns (int256) {
        // Using `ln(x)` means `x` must be greater than 0.
        return expWad((lnWad(x) * y) / int256(WAD));
    }

    /// @dev Returns `exp(x)`, denominated in `WAD`.
    function expWad(int256 x) internal pure returns (int256 r) {
        unchecked {
            // When the result is < 0.5 we return zero. This happens when
            // x <= floor(log(0.5e18) * 1e18) ~ -42e18
            if (x <= -42139678854452767551) return r;

            /// @solidity memory-safe-assembly
            assembly {
                // When the result is > (2**255 - 1) / 1e18 we can not represent it as an
                // int. This happens when x >= floor(log((2**255 - 1) / 1e18) * 1e18) ~ 135.
                if iszero(slt(x, 135305999368893231589)) {
                    // Store the function selector of `ExpOverflow()`.
                    mstore(0x00, 0xa37bfec9)
                    // Revert with (offset, size).
                    revert(0x1c, 0x04)
                }
            }

            // x is now in the range (-42, 136) * 1e18. Convert to (-42, 136) * 2**96
            // for more intermediate precision and a binary basis. This base conversion
            // is a multiplication by 1e18 / 2**96 = 5**18 / 2**78.
            x = (x << 78) / 5 ** 18;

            // Reduce range of x to (-½ ln 2, ½ ln 2) * 2**96 by factoring out powers
            // of two such that exp(x) = exp(x') * 2**k, where k is an integer.
            // Solving this gives k = round(x / log(2)) and x' = x - k * log(2).
            int256 k = ((x << 96) / 54916777467707473351141471128 + 2 ** 95) >> 96;
            x = x - k * 54916777467707473351141471128;

            // k is in the range [-61, 195].

            // Evaluate using a (6, 7)-term rational approximation.
            // p is made monic, we'll multiply by a scale factor later.
            int256 y = x + 1346386616545796478920950773328;
            y = ((y * x) >> 96) + 57155421227552351082224309758442;
            int256 p = y + x - 94201549194550492254356042504812;
            p = ((p * y) >> 96) + 28719021644029726153956944680412240;
            p = p * x + (4385272521454847904659076985693276 << 96);

            // We leave p in 2**192 basis so we don't need to scale it back up for the division.
            int256 q = x - 2855989394907223263936484059900;
            q = ((q * x) >> 96) + 50020603652535783019961831881945;
            q = ((q * x) >> 96) - 533845033583426703283633433725380;
            q = ((q * x) >> 96) + 3604857256930695427073651918091429;
            q = ((q * x) >> 96) - 14423608567350463180887372962807573;
            q = ((q * x) >> 96) + 26449188498355588339934803723976023;

            /// @solidity memory-safe-assembly
            assembly {
                // Div in assembly because solidity adds a zero check despite the unchecked.
                // The q polynomial won't have zeros in the domain as all its roots are complex.
                // No scaling is necessary because p is already 2**96 too large.
                r := sdiv(p, q)
            }

            // r should be in the range (0.09, 0.25) * 2**96.

            // We now need to multiply r by:
            // * the scale factor s = ~6.031367120.
            // * the 2**k factor from the range reduction.
            // * the 1e18 / 2**96 factor for base conversion.
            // We do this all at once, with an intermediate result in 2**213
            // basis, so the final right shift is always by a positive amount.
            r = int256(
                (uint256(r) * 3822833074963236453042738258902158003155416615667) >> uint256(195 - k)
            );
        }
    }

    /// @dev Returns `ln(x)`, denominated in `WAD`.
    function lnWad(int256 x) internal pure returns (int256 r) {
        unchecked {
            /// @solidity memory-safe-assembly
            assembly {
                if iszero(sgt(x, 0)) {
                    // Store the function selector of `LnWadUndefined()`.
                    mstore(0x00, 0x1615e638)
                    // Revert with (offset, size).
                    revert(0x1c, 0x04)
                }
            }

            // We want to convert x from 10**18 fixed point to 2**96 fixed point.
            // We do this by multiplying by 2**96 / 10**18. But since
            // ln(x * C) = ln(x) + ln(C), we can simply do nothing here
            // and add ln(2**96 / 10**18) at the end.

            // Compute k = log2(x) - 96.
            int256 k;
            /// @solidity memory-safe-assembly
            assembly {
                let v := x
                k := shl(7, lt(0xffffffffffffffffffffffffffffffff, v))
                k := or(k, shl(6, lt(0xffffffffffffffff, shr(k, v))))
                k := or(k, shl(5, lt(0xffffffff, shr(k, v))))

                // For the remaining 32 bits, use a De Bruijn lookup.
                // See: https://graphics.stanford.edu/~seander/bithacks.html
                v := shr(k, v)
                v := or(v, shr(1, v))
                v := or(v, shr(2, v))
                v := or(v, shr(4, v))
                v := or(v, shr(8, v))
                v := or(v, shr(16, v))

                // forgefmt: disable-next-item
                k := sub(or(k, byte(shr(251, mul(v, shl(224, 0x07c4acdd))),
                    0x0009010a0d15021d0b0e10121619031e080c141c0f111807131b17061a05041f)), 96)
            }

            // Reduce range of x to (1, 2) * 2**96
            // ln(2^k * x) = k * ln(2) + ln(x)
            x <<= uint256(159 - k);
            x = int256(uint256(x) >> 159);

            // Evaluate using a (8, 8)-term rational approximation.
            // p is made monic, we will multiply by a scale factor later.
            int256 p = x + 3273285459638523848632254066296;
            p = ((p * x) >> 96) + 24828157081833163892658089445524;
            p = ((p * x) >> 96) + 43456485725739037958740375743393;
            p = ((p * x) >> 96) - 11111509109440967052023855526967;
            p = ((p * x) >> 96) - 45023709667254063763336534515857;
            p = ((p * x) >> 96) - 14706773417378608786704636184526;
            p = p * x - (795164235651350426258249787498 << 96);

            // We leave p in 2**192 basis so we don't need to scale it back up for the division.
            // q is monic by convention.
            int256 q = x + 5573035233440673466300451813936;
            q = ((q * x) >> 96) + 71694874799317883764090561454958;
            q = ((q * x) >> 96) + 283447036172924575727196451306956;
            q = ((q * x) >> 96) + 401686690394027663651624208769553;
            q = ((q * x) >> 96) + 204048457590392012362485061816622;
            q = ((q * x) >> 96) + 31853899698501571402653359427138;
            q = ((q * x) >> 96) + 909429971244387300277376558375;
            /// @solidity memory-safe-assembly
            assembly {
                // Div in assembly because solidity adds a zero check despite the unchecked.
                // The q polynomial is known not to have zeros in the domain.
                // No scaling required because p is already 2**96 too large.
                r := sdiv(p, q)
            }

            // r is in the range (0, 0.125) * 2**96

            // Finalization, we need to:
            // * multiply by the scale factor s = 5.549…
            // * add ln(2**96 / 10**18)
            // * add k * ln(2)
            // * multiply by 10**18 / 2**96 = 5**18 >> 78

            // mul s * 5e18 * 2**96, base is now 5**18 * 2**192
            r *= 1677202110996718588342820967067443963516166;
            // add ln(2) * k * 5e18 * 2**192
            r += 16597577552685614221487285958193947469193820559219878177908093499208371 * k;
            // add ln(2**96 / 10**18) * 5e18 * 2**192
            r += 600920179829731861736702779321621459595472258049074101567377883020018308;
            // base conversion: mul 2**18 / 2**192
            r >>= 174;
        }
    }

    /*´:°β€’.°+.*β€’´.*:˚.°*.Λšβ€’´.°:°β€’.°β€’.*β€’´.*:˚.°*.Λšβ€’´.°:°β€’.°+.*β€’´.*:*/
    /*                  GENERAL NUMBER UTILITIES                  */
    /*.β€’°:°.´+˚.*°.˚:*.´β€’*.+°.β€’°:´*.´β€’*.β€’°.β€’°:°.´:β€’Λš°.*°.˚:*.´+°.β€’*/

    /// @dev Calculates `floor(a * b / d)` with full precision.
    /// Throws if result overflows a uint256 or when `d` is zero.
    /// Credit to Remco Bloemen under MIT license: https://2Ο€.com/21/muldiv
    function fullMulDiv(uint256 x, uint256 y, uint256 d) internal pure returns (uint256 result) {
        /// @solidity memory-safe-assembly
        assembly {
            // forgefmt: disable-next-item
            for {} 1 {} {
                // 512-bit multiply `[prod1 prod0] = x * y`.
                // Compute the product mod `2**256` and mod `2**256 - 1`
                // then use the Chinese Remainder Theorem to reconstruct
                // the 512 bit result. The result is stored in two 256
                // variables such that `product = prod1 * 2**256 + prod0`.

                // Least significant 256 bits of the product.
                let prod0 := mul(x, y)
                let mm := mulmod(x, y, not(0))
                // Most significant 256 bits of the product.
                let prod1 := sub(mm, add(prod0, lt(mm, prod0)))

                // Handle non-overflow cases, 256 by 256 division.
                if iszero(prod1) {
                    if iszero(d) {
                        // Store the function selector of `FullMulDivFailed()`.
                        mstore(0x00, 0xae47f702)
                        // Revert with (offset, size).
                        revert(0x1c, 0x04)
                    }
                    result := div(prod0, d)
                    break       
                }

                // Make sure the result is less than `2**256`.
                // Also prevents `d == 0`.
                if iszero(gt(d, prod1)) {
                    // Store the function selector of `FullMulDivFailed()`.
                    mstore(0x00, 0xae47f702)
                    // Revert with (offset, size).
                    revert(0x1c, 0x04)
                }

                ///////////////////////////////////////////////
                // 512 by 256 division.
                ///////////////////////////////////////////////

                // Make division exact by subtracting the remainder from `[prod1 prod0]`.
                // Compute remainder using mulmod.
                let remainder := mulmod(x, y, d)
                // Subtract 256 bit number from 512 bit number.
                prod1 := sub(prod1, gt(remainder, prod0))
                prod0 := sub(prod0, remainder)
                // Factor powers of two out of `d`.
                // Compute largest power of two divisor of `d`.
                // Always greater or equal to 1.
                let twos := and(d, sub(0, d))
                // Divide d by power of two.
                d := div(d, twos)
                // Divide [prod1 prod0] by the factors of two.
                prod0 := div(prod0, twos)
                // Shift in bits from `prod1` into `prod0`. For this we need
                // to flip `twos` such that it is `2**256 / twos`.
                // If `twos` is zero, then it becomes one.
                prod0 := or(prod0, mul(prod1, add(div(sub(0, twos), twos), 1)))
                // Invert `d mod 2**256`
                // Now that `d` is an odd number, it has an inverse
                // modulo `2**256` such that `d * inv = 1 mod 2**256`.
                // Compute the inverse by starting with a seed that is correct
                // correct for four bits. That is, `d * inv = 1 mod 2**4`.
                let inv := xor(mul(3, d), 2)
                // Now use Newton-Raphson iteration to improve the precision.
                // Thanks to Hensel's lifting lemma, this also works in modular
                // arithmetic, doubling the correct bits in each step.
                inv := mul(inv, sub(2, mul(d, inv))) // inverse mod 2**8
                inv := mul(inv, sub(2, mul(d, inv))) // inverse mod 2**16
                inv := mul(inv, sub(2, mul(d, inv))) // inverse mod 2**32
                inv := mul(inv, sub(2, mul(d, inv))) // inverse mod 2**64
                inv := mul(inv, sub(2, mul(d, inv))) // inverse mod 2**128
                result := mul(prod0, mul(inv, sub(2, mul(d, inv)))) // inverse mod 2**256
                break
            }
        }
    }

    /// @dev Calculates `floor(x * y / d)` with full precision, rounded up.
    /// Throws if result overflows a uint256 or when `d` is zero.
    /// Credit to Uniswap-v3-core under MIT license:
    /// https://github.com/Uniswap/v3-core/blob/contracts/libraries/FullMath.sol
    function fullMulDivUp(uint256 x, uint256 y, uint256 d) internal pure returns (uint256 result) {
        result = fullMulDiv(x, y, d);
        /// @solidity memory-safe-assembly
        assembly {
            if mulmod(x, y, d) {
                if iszero(add(result, 1)) {
                    // Store the function selector of `FullMulDivFailed()`.
                    mstore(0x00, 0xae47f702)
                    // Revert with (offset, size).
                    revert(0x1c, 0x04)
                }
                result := add(result, 1)
            }
        }
    }

    /// @dev Returns `floor(x * y / d)`.
    /// Reverts if `x * y` overflows, or `d` is zero.
    function mulDiv(uint256 x, uint256 y, uint256 d) internal pure returns (uint256 z) {
        /// @solidity memory-safe-assembly
        assembly {
            // Equivalent to require(d != 0 && (y == 0 || x <= type(uint256).max / y))
            if iszero(mul(d, iszero(mul(y, gt(x, div(not(0), y)))))) {
                // Store the function selector of `MulDivFailed()`.
                mstore(0x00, 0xad251c27)
                // Revert with (offset, size).
                revert(0x1c, 0x04)
            }
            z := div(mul(x, y), d)
        }
    }

    /// @dev Returns `ceil(x * y / d)`.
    /// Reverts if `x * y` overflows, or `d` is zero.
    function mulDivUp(uint256 x, uint256 y, uint256 d) internal pure returns (uint256 z) {
        /// @solidity memory-safe-assembly
        assembly {
            // Equivalent to require(d != 0 && (y == 0 || x <= type(uint256).max / y))
            if iszero(mul(d, iszero(mul(y, gt(x, div(not(0), y)))))) {
                // Store the function selector of `MulDivFailed()`.
                mstore(0x00, 0xad251c27)
                // Revert with (offset, size).
                revert(0x1c, 0x04)
            }
            z := add(iszero(iszero(mod(mul(x, y), d))), div(mul(x, y), d))
        }
    }

    /// @dev Returns `ceil(x / d)`.
    /// Reverts if `d` is zero.
    function divUp(uint256 x, uint256 d) internal pure returns (uint256 z) {
        /// @solidity memory-safe-assembly
        assembly {
            if iszero(d) {
                // Store the function selector of `DivFailed()`.
                mstore(0x00, 0x65244e4e)
                // Revert with (offset, size).
                revert(0x1c, 0x04)
            }
            z := add(iszero(iszero(mod(x, d))), div(x, d))
        }
    }

    /// @dev Returns `max(0, x - y)`.
    function zeroFloorSub(uint256 x, uint256 y) internal pure returns (uint256 z) {
        /// @solidity memory-safe-assembly
        assembly {
            z := mul(gt(x, y), sub(x, y))
        }
    }

    /// @dev Returns the square root of `x`.
    function sqrt(uint256 x) internal pure returns (uint256 z) {
        /// @solidity memory-safe-assembly
        assembly {
            // `floor(sqrt(2**15)) = 181`. `sqrt(2**15) - 181 = 2.84`.
            z := 181 // The "correct" value is 1, but this saves a multiplication later.

            // This segment is to get a reasonable initial estimate for the Babylonian method. With a bad
            // start, the correct # of bits increases ~linearly each iteration instead of ~quadratically.

            // Let `y = x / 2**r`.
            // We check `y >= 2**(k + 8)` but shift right by `k` bits
            // each branch to ensure that if `x >= 256`, then `y >= 256`.
            let r := shl(7, lt(0xffffffffffffffffffffffffffffffffff, x))
            r := or(r, shl(6, lt(0xffffffffffffffffff, shr(r, x))))
            r := or(r, shl(5, lt(0xffffffffff, shr(r, x))))
            r := or(r, shl(4, lt(0xffffff, shr(r, x))))
            z := shl(shr(1, r), z)

            // Goal was to get `z*z*y` within a small factor of `x`. More iterations could
            // get y in a tighter range. Currently, we will have y in `[256, 256*(2**16))`.
            // We ensured `y >= 256` so that the relative difference between `y` and `y+1` is small.
            // That's not possible if `x < 256` but we can just verify those cases exhaustively.

            // Now, `z*z*y <= x < z*z*(y+1)`, and `y <= 2**(16+8)`, and either `y >= 256`, or `x < 256`.
            // Correctness can be checked exhaustively for `x < 256`, so we assume `y >= 256`.
            // Then `z*sqrt(y)` is within `sqrt(257)/sqrt(256)` of `sqrt(x)`, or about 20bps.

            // For `s` in the range `[1/256, 256]`, the estimate `f(s) = (181/1024) * (s+1)`
            // is in the range `(1/2.84 * sqrt(s), 2.84 * sqrt(s))`,
            // with largest error when `s = 1` and when `s = 256` or `1/256`.

            // Since `y` is in `[256, 256*(2**16))`, let `a = y/65536`, so that `a` is in `[1/256, 256)`.
            // Then we can estimate `sqrt(y)` using
            // `sqrt(65536) * 181/1024 * (a + 1) = 181/4 * (y + 65536)/65536 = 181 * (y + 65536)/2**18`.

            // There is no overflow risk here since `y < 2**136` after the first branch above.
            z := shr(18, mul(z, add(shr(r, x), 65536))) // A `mul()` is saved from starting `z` at 181.

            // Given the worst case multiplicative error of 2.84 above, 7 iterations should be enough.
            z := shr(1, add(z, div(x, z)))
            z := shr(1, add(z, div(x, z)))
            z := shr(1, add(z, div(x, z)))
            z := shr(1, add(z, div(x, z)))
            z := shr(1, add(z, div(x, z)))
            z := shr(1, add(z, div(x, z)))
            z := shr(1, add(z, div(x, z)))

            // If `x+1` is a perfect square, the Babylonian method cycles between
            // `floor(sqrt(x))` and `ceil(sqrt(x))`. This statement ensures we return floor.
            // See: https://en.wikipedia.org/wiki/Integer_square_root#Using_only_integer_division
            // Since the ceil is rare, we save gas on the assignment and repeat division in the rare case.
            // If you don't care whether the floor or ceil square root is returned, you can remove this statement.
            z := sub(z, lt(div(x, z), z))
        }
    }

    /// @dev Returns the cube root of `x`.
    /// Credit to bout3fiddy and pcaversaccio under AGPLv3 license:
    /// https://github.com/pcaversaccio/snekmate/blob/main/src/utils/Math.vy
    function cbrt(uint256 x) internal pure returns (uint256 z) {
        /// @solidity memory-safe-assembly
        assembly {
            let r := shl(7, lt(0xffffffffffffffffffffffffffffffff, x))
            r := or(r, shl(6, lt(0xffffffffffffffff, shr(r, x))))
            r := or(r, shl(5, lt(0xffffffff, shr(r, x))))
            r := or(r, shl(4, lt(0xffff, shr(r, x))))
            r := or(r, shl(3, lt(0xff, shr(r, x))))

            z := shl(add(div(r, 3), lt(0xf, shr(r, x))), 0xff)
            z := div(z, byte(mod(r, 3), shl(232, 0x7f624b)))

            z := div(add(add(div(x, mul(z, z)), z), z), 3)
            z := div(add(add(div(x, mul(z, z)), z), z), 3)
            z := div(add(add(div(x, mul(z, z)), z), z), 3)
            z := div(add(add(div(x, mul(z, z)), z), z), 3)
            z := div(add(add(div(x, mul(z, z)), z), z), 3)
            z := div(add(add(div(x, mul(z, z)), z), z), 3)
            z := div(add(add(div(x, mul(z, z)), z), z), 3)

            z := sub(z, lt(div(x, mul(z, z)), z))
        }
    }

    /// @dev Returns the factorial of `x`.
    function factorial(uint256 x) internal pure returns (uint256 result) {
        /// @solidity memory-safe-assembly
        assembly {
            for {} 1 {} {
                if iszero(lt(10, x)) {
                    // forgefmt: disable-next-item
                    result := and(
                        shr(mul(22, x), 0x375f0016260009d80004ec0002d00001e0000180000180000200000400001),
                        0x3fffff
                    )
                    break
                }
                if iszero(lt(57, x)) {
                    let end := 31
                    result := 8222838654177922817725562880000000
                    if iszero(lt(end, x)) {
                        end := 10
                        result := 3628800
                    }
                    for { let w := not(0) } 1 {} {
                        result := mul(result, x)
                        x := add(x, w)
                        if eq(x, end) { break }
                    }
                    break
                }
                // Store the function selector of `FactorialOverflow()`.
                mstore(0x00, 0xaba0f2a2)
                // Revert with (offset, size).
                revert(0x1c, 0x04)
            }
        }
    }

    /// @dev Returns the log2 of `x`.
    /// Equivalent to computing the index of the most significant bit (MSB) of `x`.
    function log2(uint256 x) internal pure returns (uint256 r) {
        /// @solidity memory-safe-assembly
        assembly {
            if iszero(x) {
                // Store the function selector of `Log2Undefined()`.
                mstore(0x00, 0x5be3aa5c)
                // Revert with (offset, size).
                revert(0x1c, 0x04)
            }

            r := shl(7, lt(0xffffffffffffffffffffffffffffffff, x))
            r := or(r, shl(6, lt(0xffffffffffffffff, shr(r, x))))
            r := or(r, shl(5, lt(0xffffffff, shr(r, x))))

            // For the remaining 32 bits, use a De Bruijn lookup.
            // See: https://graphics.stanford.edu/~seander/bithacks.html
            x := shr(r, x)
            x := or(x, shr(1, x))
            x := or(x, shr(2, x))
            x := or(x, shr(4, x))
            x := or(x, shr(8, x))
            x := or(x, shr(16, x))

            // forgefmt: disable-next-item
            r := or(r, byte(shr(251, mul(x, shl(224, 0x07c4acdd))),
                0x0009010a0d15021d0b0e10121619031e080c141c0f111807131b17061a05041f))
        }
    }

    /// @dev Returns the log2 of `x`, rounded up.
    function log2Up(uint256 x) internal pure returns (uint256 r) {
        unchecked {
            uint256 isNotPo2;
            assembly {
                isNotPo2 := iszero(iszero(and(x, sub(x, 1))))
            }
            return log2(x) + isNotPo2;
        }
    }

    /// @dev Returns the average of `x` and `y`.
    function avg(uint256 x, uint256 y) internal pure returns (uint256 z) {
        unchecked {
            z = (x & y) + ((x ^ y) >> 1);
        }
    }

    /// @dev Returns the average of `x` and `y`.
    function avg(int256 x, int256 y) internal pure returns (int256 z) {
        unchecked {
            z = (x >> 1) + (y >> 1) + (((x & 1) + (y & 1)) >> 1);
        }
    }

    /// @dev Returns the absolute value of `x`.
    function abs(int256 x) internal pure returns (uint256 z) {
        /// @solidity memory-safe-assembly
        assembly {
            let mask := sub(0, shr(255, x))
            z := xor(mask, add(mask, x))
        }
    }

    /// @dev Returns the absolute distance between `x` and `y`.
    function dist(int256 x, int256 y) internal pure returns (uint256 z) {
        /// @solidity memory-safe-assembly
        assembly {
            let a := sub(y, x)
            z := xor(a, mul(xor(a, sub(x, y)), sgt(x, y)))
        }
    }

    /// @dev Returns the minimum of `x` and `y`.
    function min(uint256 x, uint256 y) internal pure returns (uint256 z) {
        /// @solidity memory-safe-assembly
        assembly {
            z := xor(x, mul(xor(x, y), lt(y, x)))
        }
    }

    /// @dev Returns the minimum of `x` and `y`.
    function min(int256 x, int256 y) internal pure returns (int256 z) {
        /// @solidity memory-safe-assembly
        assembly {
            z := xor(x, mul(xor(x, y), slt(y, x)))
        }
    }

    /// @dev Returns the maximum of `x` and `y`.
    function max(uint256 x, uint256 y) internal pure returns (uint256 z) {
        /// @solidity memory-safe-assembly
        assembly {
            z := xor(x, mul(xor(x, y), gt(y, x)))
        }
    }

    /// @dev Returns the maximum of `x` and `y`.
    function max(int256 x, int256 y) internal pure returns (int256 z) {
        /// @solidity memory-safe-assembly
        assembly {
            z := xor(x, mul(xor(x, y), sgt(y, x)))
        }
    }

    /// @dev Returns `x`, bounded to `minValue` and `maxValue`.
    function clamp(uint256 x, uint256 minValue, uint256 maxValue)
        internal
        pure
        returns (uint256 z)
    {
        z = min(max(x, minValue), maxValue);
    }

    /// @dev Returns `x`, bounded to `minValue` and `maxValue`.
    function clamp(int256 x, int256 minValue, int256 maxValue) internal pure returns (int256 z) {
        z = min(max(x, minValue), maxValue);
    }

    /// @dev Returns greatest common divisor of `x` and `y`.
    function gcd(uint256 x, uint256 y) internal pure returns (uint256 z) {
        /// @solidity memory-safe-assembly
        assembly {
            // forgefmt: disable-next-item
            for { z := x } y {} {
                let t := y
                y := mod(z, y)
                z := t
            }
        }
    }

    /*´:°β€’.°+.*β€’´.*:˚.°*.Λšβ€’´.°:°β€’.°β€’.*β€’´.*:˚.°*.Λšβ€’´.°:°β€’.°+.*β€’´.*:*/
    /*                   RAW NUMBER OPERATIONS                    */
    /*.β€’°:°.´+˚.*°.˚:*.´β€’*.+°.β€’°:´*.´β€’*.β€’°.β€’°:°.´:β€’Λš°.*°.˚:*.´+°.β€’*/

    /// @dev Returns `x + y`, without checking for overflow.
    function rawAdd(uint256 x, uint256 y) internal pure returns (uint256 z) {
        unchecked {
            z = x + y;
        }
    }

    /// @dev Returns `x + y`, without checking for overflow.
    function rawAdd(int256 x, int256 y) internal pure returns (int256 z) {
        unchecked {
            z = x + y;
        }
    }

    /// @dev Returns `x - y`, without checking for underflow.
    function rawSub(uint256 x, uint256 y) internal pure returns (uint256 z) {
        unchecked {
            z = x - y;
        }
    }

    /// @dev Returns `x - y`, without checking for underflow.
    function rawSub(int256 x, int256 y) internal pure returns (int256 z) {
        unchecked {
            z = x - y;
        }
    }

    /// @dev Returns `x * y`, without checking for overflow.
    function rawMul(uint256 x, uint256 y) internal pure returns (uint256 z) {
        unchecked {
            z = x * y;
        }
    }

    /// @dev Returns `x * y`, without checking for overflow.
    function rawMul(int256 x, int256 y) internal pure returns (int256 z) {
        unchecked {
            z = x * y;
        }
    }

    /// @dev Returns `x / y`, returning 0 if `y` is zero.
    function rawDiv(uint256 x, uint256 y) internal pure returns (uint256 z) {
        /// @solidity memory-safe-assembly
        assembly {
            z := div(x, y)
        }
    }

    /// @dev Returns `x / y`, returning 0 if `y` is zero.
    function rawSDiv(int256 x, int256 y) internal pure returns (int256 z) {
        /// @solidity memory-safe-assembly
        assembly {
            z := sdiv(x, y)
        }
    }

    /// @dev Returns `x % y`, returning 0 if `y` is zero.
    function rawMod(uint256 x, uint256 y) internal pure returns (uint256 z) {
        /// @solidity memory-safe-assembly
        assembly {
            z := mod(x, y)
        }
    }

    /// @dev Returns `x % y`, returning 0 if `y` is zero.
    function rawSMod(int256 x, int256 y) internal pure returns (int256 z) {
        /// @solidity memory-safe-assembly
        assembly {
            z := smod(x, y)
        }
    }

    /// @dev Returns `(x + y) % d`, return 0 if `d` if zero.
    function rawAddMod(uint256 x, uint256 y, uint256 d) internal pure returns (uint256 z) {
        /// @solidity memory-safe-assembly
        assembly {
            z := addmod(x, y, d)
        }
    }

    /// @dev Returns `(x * y) % d`, return 0 if `d` if zero.
    function rawMulMod(uint256 x, uint256 y, uint256 d) internal pure returns (uint256 z) {
        /// @solidity memory-safe-assembly
        assembly {
            z := mulmod(x, y, d)
        }
    }
}

File 9 of 13 : CommitmentsLib.sol
// SPDX-License-Identifier: BUSL-1.1
/*
β–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ•—β–‘β–ˆβ–ˆβ•—β–‘β–‘β–‘β–‘β–‘β–‘β–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ•—β–‘β–‘β–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ•—β–‘β–ˆβ–ˆβ–ˆβ•—β–‘β–‘β–‘β–ˆβ–ˆβ–ˆβ•—
β–ˆβ–ˆβ•”β•β•β–ˆβ–ˆβ•—β–ˆβ–ˆβ•‘β–‘β–‘β–‘β–‘β–‘β–ˆβ–ˆβ•”β•β•β–ˆβ–ˆβ•—β–ˆβ–ˆβ•”β•β•β–ˆβ–ˆβ•—β–ˆβ–ˆβ–ˆβ–ˆβ•—β–‘β–ˆβ–ˆβ–ˆβ–ˆβ•‘
β–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ•¦β•β–ˆβ–ˆβ•‘β–‘β–‘β–‘β–‘β–‘β–ˆβ–ˆβ•‘β–‘β–‘β–ˆβ–ˆβ•‘β–ˆβ–ˆβ•‘β–‘β–‘β–ˆβ–ˆβ•‘β–ˆβ–ˆβ•”β–ˆβ–ˆβ–ˆβ–ˆβ•”β–ˆβ–ˆβ•‘
β–ˆβ–ˆβ•”β•β•β–ˆβ–ˆβ•—β–ˆβ–ˆβ•‘β–‘β–‘β–‘β–‘β–‘β–ˆβ–ˆβ•‘β–‘β–‘β–ˆβ–ˆβ•‘β–ˆβ–ˆβ•‘β–‘β–‘β–ˆβ–ˆβ•‘β–ˆβ–ˆβ•‘β•šβ–ˆβ–ˆβ•”β•β–ˆβ–ˆβ•‘
β–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ•¦β•β–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ•—β•šβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ•”β•β•šβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ•”β•β–ˆβ–ˆβ•‘β–‘β•šβ•β•β–‘β–ˆβ–ˆβ•‘
β•šβ•β•β•β•β•β•β–‘β•šβ•β•β•β•β•β•β•β–‘β•šβ•β•β•β•β•β–‘β–‘β•šβ•β•β•β•β•β–‘β•šβ•β•β–‘β–‘β–‘β–‘β–‘β•šβ•β•
*/

pragma solidity 0.8.19;

import {SafeCastLib} from "solady/utils/SafeCastLib.sol";

struct AssetCommitment {
    address owner;
    uint128 committedAmount;
    uint128 cumulativeAmountEnd;
}

struct Commitments {
    mapping(uint256 => AssetCommitment) commitments;
    uint64 commitmentCount;
    uint192 totalAssetsCommitted;
}

library CommitmentsLib {
    using SafeCastLib for uint256;

    error NonexistentCommit();

    function add(Commitments storage commitments, address owner, uint256 amount)
        internal
        returns (uint256 newCommitmendId, uint256 cumulativeAmountEnd)
    {
        uint256 commitmentCount = commitments.commitmentCount;
        unchecked {
            newCommitmendId = commitmentCount++;
        }
        cumulativeAmountEnd = commitments.totalAssetsCommitted + amount;
        commitments.commitments[newCommitmendId] = AssetCommitment({
            owner: owner,
            committedAmount: uint128(amount),
            cumulativeAmountEnd: cumulativeAmountEnd.toUint128()
        });
        commitments.commitmentCount = commitmentCount.toUint64();
        // If safe cast to uint128 did not fail cast to uint192 cannot truncate.
        commitments.totalAssetsCommitted = uint192(cumulativeAmountEnd);
    }

    function getAmountSplit(AssetCommitment storage commitment, uint256 totalIncludedAmount)
        internal
        view
        returns (uint256 includedAmount, uint256 excludedAmount)
    {
        uint256 committedAmount = commitment.committedAmount;
        uint256 cumulativeAmountEnd = commitment.cumulativeAmountEnd;
        if (totalIncludedAmount >= cumulativeAmountEnd) {
            includedAmount = committedAmount;
            excludedAmount = 0;
        } else {
            uint256 cumulativeAmountStart = cumulativeAmountEnd - committedAmount;
            if (cumulativeAmountStart > totalIncludedAmount) {
                includedAmount = 0;
                excludedAmount = committedAmount;
            } else {
                unchecked {
                    includedAmount = totalIncludedAmount - cumulativeAmountStart;
                    excludedAmount = committedAmount - includedAmount;
                }
            }
        }
    }

    function get(Commitments storage commitments, uint256 id) internal view returns (AssetCommitment storage) {
        if (id >= commitments.commitmentCount) {
            revert NonexistentCommit();
        }
        return commitments.commitments[id];
    }
}

File 10 of 13 : IWhitelist.sol
// SPDX-License-Identifier: BUSL-1.1
/*
β–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ•—β–‘β–ˆβ–ˆβ•—β–‘β–‘β–‘β–‘β–‘β–‘β–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ•—β–‘β–‘β–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ•—β–‘β–ˆβ–ˆβ–ˆβ•—β–‘β–‘β–‘β–ˆβ–ˆβ–ˆβ•—
β–ˆβ–ˆβ•”β•β•β–ˆβ–ˆβ•—β–ˆβ–ˆβ•‘β–‘β–‘β–‘β–‘β–‘β–ˆβ–ˆβ•”β•β•β–ˆβ–ˆβ•—β–ˆβ–ˆβ•”β•β•β–ˆβ–ˆβ•—β–ˆβ–ˆβ–ˆβ–ˆβ•—β–‘β–ˆβ–ˆβ–ˆβ–ˆβ•‘
β–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ•¦β•β–ˆβ–ˆβ•‘β–‘β–‘β–‘β–‘β–‘β–ˆβ–ˆβ•‘β–‘β–‘β–ˆβ–ˆβ•‘β–ˆβ–ˆβ•‘β–‘β–‘β–ˆβ–ˆβ•‘β–ˆβ–ˆβ•”β–ˆβ–ˆβ–ˆβ–ˆβ•”β–ˆβ–ˆβ•‘
β–ˆβ–ˆβ•”β•β•β–ˆβ–ˆβ•—β–ˆβ–ˆβ•‘β–‘β–‘β–‘β–‘β–‘β–ˆβ–ˆβ•‘β–‘β–‘β–ˆβ–ˆβ•‘β–ˆβ–ˆβ•‘β–‘β–‘β–ˆβ–ˆβ•‘β–ˆβ–ˆβ•‘β•šβ–ˆβ–ˆβ•”β•β–ˆβ–ˆβ•‘
β–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ•¦β•β–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ•—β•šβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ•”β•β•šβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ•”β•β–ˆβ–ˆβ•‘β–‘β•šβ•β•β–‘β–ˆβ–ˆβ•‘
β•šβ•β•β•β•β•β•β–‘β•šβ•β•β•β•β•β•β•β–‘β•šβ•β•β•β•β•β–‘β–‘β•šβ•β•β•β•β•β–‘β•šβ•β•β–‘β–‘β–‘β–‘β–‘β•šβ•β•
*/

pragma solidity 0.8.19;

interface IWhitelist {
    event NewWhitelistRoot(bytes32 newRoot);

    function setRoot(bytes32 newRoot) external;

    function isWhitelisted(address member, bytes32[] calldata proof) external returns (bool);
}

File 11 of 13 : ISwapFacility.sol
// SPDX-License-Identifier: BUSL-1.1
/*
β–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ•—β–‘β–ˆβ–ˆβ•—β–‘β–‘β–‘β–‘β–‘β–‘β–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ•—β–‘β–‘β–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ•—β–‘β–ˆβ–ˆβ–ˆβ•—β–‘β–‘β–‘β–ˆβ–ˆβ–ˆβ•—
β–ˆβ–ˆβ•”β•β•β–ˆβ–ˆβ•—β–ˆβ–ˆβ•‘β–‘β–‘β–‘β–‘β–‘β–ˆβ–ˆβ•”β•β•β–ˆβ–ˆβ•—β–ˆβ–ˆβ•”β•β•β–ˆβ–ˆβ•—β–ˆβ–ˆβ–ˆβ–ˆβ•—β–‘β–ˆβ–ˆβ–ˆβ–ˆβ•‘
β–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ•¦β•β–ˆβ–ˆβ•‘β–‘β–‘β–‘β–‘β–‘β–ˆβ–ˆβ•‘β–‘β–‘β–ˆβ–ˆβ•‘β–ˆβ–ˆβ•‘β–‘β–‘β–ˆβ–ˆβ•‘β–ˆβ–ˆβ•”β–ˆβ–ˆβ–ˆβ–ˆβ•”β–ˆβ–ˆβ•‘
β–ˆβ–ˆβ•”β•β•β–ˆβ–ˆβ•—β–ˆβ–ˆβ•‘β–‘β–‘β–‘β–‘β–‘β–ˆβ–ˆβ•‘β–‘β–‘β–ˆβ–ˆβ•‘β–ˆβ–ˆβ•‘β–‘β–‘β–ˆβ–ˆβ•‘β–ˆβ–ˆβ•‘β•šβ–ˆβ–ˆβ•”β•β–ˆβ–ˆβ•‘
β–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ•¦β•β–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ•—β•šβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ•”β•β•šβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ•”β•β–ˆβ–ˆβ•‘β–‘β•šβ•β•β–‘β–ˆβ–ˆβ•‘
β•šβ•β•β•β•β•β•β–‘β•šβ•β•β•β•β•β•β•β–‘β•šβ•β•β•β•β•β–‘β–‘β•šβ•β•β•β•β•β–‘β•šβ•β•β–‘β–‘β–‘β–‘β–‘β•šβ•β•
*/

pragma solidity 0.8.19;

import {IWhitelist} from "../interfaces/IWhitelist.sol";

interface ISwapFacility {
    // =================== Functions ===================

    /// @notice Get Underlying token
    function underlyingToken() external view returns (address);

    /// @notice Get Billy token
    function billyToken() external view returns (address);

    /// @notice Get Price oracle for underlying token
    function underlyingTokenOracle() external view returns (address);

    /// @notice Get Price oracle for billy token
    function billyTokenOracle() external view returns (address);

    /// @notice Get Whitelist contract
    function whitelist() external view returns (IWhitelist);

    /// @notice Get Spread price
    function spread() external view returns (uint256);

    /// @notice Get Pool address
    function pool() external view returns (address);

    /// @notice swap tokens Underlying <-> Billy
    function swap(address inToken, address outToken, uint256 inAmount, bytes32[] calldata proof) external;
}

File 12 of 13 : IBPSFeed.sol
// SPDX-License-Identifier: BUSL-1.1
/*
β–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ•—β–‘β–ˆβ–ˆβ•—β–‘β–‘β–‘β–‘β–‘β–‘β–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ•—β–‘β–‘β–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ•—β–‘β–ˆβ–ˆβ–ˆβ•—β–‘β–‘β–‘β–ˆβ–ˆβ–ˆβ•—
β–ˆβ–ˆβ•”β•β•β–ˆβ–ˆβ•—β–ˆβ–ˆβ•‘β–‘β–‘β–‘β–‘β–‘β–ˆβ–ˆβ•”β•β•β–ˆβ–ˆβ•—β–ˆβ–ˆβ•”β•β•β–ˆβ–ˆβ•—β–ˆβ–ˆβ–ˆβ–ˆβ•—β–‘β–ˆβ–ˆβ–ˆβ–ˆβ•‘
β–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ•¦β•β–ˆβ–ˆβ•‘β–‘β–‘β–‘β–‘β–‘β–ˆβ–ˆβ•‘β–‘β–‘β–ˆβ–ˆβ•‘β–ˆβ–ˆβ•‘β–‘β–‘β–ˆβ–ˆβ•‘β–ˆβ–ˆβ•”β–ˆβ–ˆβ–ˆβ–ˆβ•”β–ˆβ–ˆβ•‘
β–ˆβ–ˆβ•”β•β•β–ˆβ–ˆβ•—β–ˆβ–ˆβ•‘β–‘β–‘β–‘β–‘β–‘β–ˆβ–ˆβ•‘β–‘β–‘β–ˆβ–ˆβ•‘β–ˆβ–ˆβ•‘β–‘β–‘β–ˆβ–ˆβ•‘β–ˆβ–ˆβ•‘β•šβ–ˆβ–ˆβ•”β•β–ˆβ–ˆβ•‘
β–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ•¦β•β–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ•—β•šβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ•”β•β•šβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ•”β•β–ˆβ–ˆβ•‘β–‘β•šβ•β•β–‘β–ˆβ–ˆβ•‘
β•šβ•β•β•β•β•β•β–‘β•šβ•β•β•β•β•β•β•β–‘β•šβ•β•β•β•β•β–‘β–‘β•šβ•β•β•β•β•β–‘β•šβ•β•β–‘β–‘β–‘β–‘β–‘β•šβ•β•
*/

pragma solidity 0.8.19;

interface IBPSFeed {
    error InvalidRate();

    event UpdateRate(uint256 currentRate);

    /// @notice Returns weighted rate
    function getWeightedRate() external view returns (uint256);

    /// @notice Returns current rate
    function currentRate() external view returns (uint256);

    /// @notice Returns last timestamp the rate was set
    function lastTimestamp() external view returns (uint256);

    /// @notice Sets new rate
    /// @param rate New rate
    function updateRate(uint256 rate) external;
}

File 13 of 13 : IOracle.sol
// SPDX-License-Identifier: BUSL-1.1
/*
β–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ•—β–‘β–ˆβ–ˆβ•—β–‘β–‘β–‘β–‘β–‘β–‘β–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ•—β–‘β–‘β–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ•—β–‘β–ˆβ–ˆβ–ˆβ•—β–‘β–‘β–‘β–ˆβ–ˆβ–ˆβ•—
β–ˆβ–ˆβ•”β•β•β–ˆβ–ˆβ•—β–ˆβ–ˆβ•‘β–‘β–‘β–‘β–‘β–‘β–ˆβ–ˆβ•”β•β•β–ˆβ–ˆβ•—β–ˆβ–ˆβ•”β•β•β–ˆβ–ˆβ•—β–ˆβ–ˆβ–ˆβ–ˆβ•—β–‘β–ˆβ–ˆβ–ˆβ–ˆβ•‘
β–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ•¦β•β–ˆβ–ˆβ•‘β–‘β–‘β–‘β–‘β–‘β–ˆβ–ˆβ•‘β–‘β–‘β–ˆβ–ˆβ•‘β–ˆβ–ˆβ•‘β–‘β–‘β–ˆβ–ˆβ•‘β–ˆβ–ˆβ•”β–ˆβ–ˆβ–ˆβ–ˆβ•”β–ˆβ–ˆβ•‘
β–ˆβ–ˆβ•”β•β•β–ˆβ–ˆβ•—β–ˆβ–ˆβ•‘β–‘β–‘β–‘β–‘β–‘β–ˆβ–ˆβ•‘β–‘β–‘β–ˆβ–ˆβ•‘β–ˆβ–ˆβ•‘β–‘β–‘β–ˆβ–ˆβ•‘β–ˆβ–ˆβ•‘β•šβ–ˆβ–ˆβ•”β•β–ˆβ–ˆβ•‘
β–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ•¦β•β–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ•—β•šβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ•”β•β•šβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ•”β•β–ˆβ–ˆβ•‘β–‘β•šβ•β•β–‘β–ˆβ–ˆβ•‘
β•šβ•β•β•β•β•β•β–‘β•šβ•β•β•β•β•β•β•β–‘β•šβ•β•β•β•β•β–‘β–‘β•šβ•β•β•β•β•β–‘β•šβ•β•β–‘β–‘β–‘β–‘β–‘β•šβ•β•
*/

pragma solidity ^0.8.0;

interface IOracle {
    function latestAnswer() external view returns (int256);

    function decimals() external view returns (uint8);

    function latestRoundData()
        external
        view
        returns (uint80 roundId, int256 answer, uint256 startedAt, uint256 updatedAt, uint80 answeredInRound);
}

Settings
{
  "remappings": [
    "ds-test/=lib/forge-safe/lib/ds-test/src/",
    "erc4626-tests/=lib/openzeppelin-contracts/lib/erc4626-tests/",
    "forge-safe/=lib/forge-safe/",
    "forge-std/=lib/forge-std/src/",
    "openzeppelin-contracts/=lib/openzeppelin-contracts/",
    "openzeppelin/=lib/openzeppelin-contracts/contracts/",
    "solady/=lib/solady/src/",
    "solidity-stringutils/=lib/forge-safe/lib/surl/lib/solidity-stringutils/",
    "solmate/=lib/solmate/src/",
    "surl/=lib/forge-safe/lib/surl/"
  ],
  "optimizer": {
    "enabled": true,
    "runs": 100
  },
  "metadata": {
    "bytecodeHash": "ipfs",
    "appendCBOR": true
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "evmVersion": "paris",
  "viaIR": true,
  "libraries": {}
}

Contract Security Audit

Contract ABI

[{"inputs":[{"internalType":"address","name":"underlyingToken","type":"address"},{"internalType":"address","name":"billToken","type":"address"},{"internalType":"contract IWhitelist","name":"whitelist","type":"address"},{"internalType":"address","name":"swapFacility","type":"address"},{"internalType":"address","name":"treasury","type":"address"},{"internalType":"address","name":"lenderReturnBpsFeed","type":"address"},{"internalType":"address","name":"emergencyHandler","type":"address"},{"internalType":"uint256","name":"leverageBps","type":"uint256"},{"internalType":"uint256","name":"minBorrowDeposit","type":"uint256"},{"internalType":"uint256","name":"commitPhaseDuration","type":"uint256"},{"internalType":"uint256","name":"swapTimeout","type":"uint256"},{"internalType":"uint256","name":"poolPhaseDuration","type":"uint256"},{"internalType":"uint256","name":"lenderReturnFee","type":"uint256"},{"internalType":"uint256","name":"borrowerReturnFee","type":"uint256"},{"internalType":"string","name":"name","type":"string"},{"internalType":"string","name":"symbol","type":"string"}],"stateMutability":"nonpayable","type":"constructor"},{"inputs":[{"internalType":"uint256","name":"id","type":"uint256"}],"name":"CanOnlyWithdrawProcessedCommit","type":"error"},{"inputs":[],"name":"CommitTooSmall","type":"error"},{"inputs":[{"internalType":"address","name":"outToken","type":"address"}],"name":"InvalidOutToken","type":"error"},{"inputs":[{"internalType":"enum State","name":"current","type":"uint8"}],"name":"InvalidState","type":"error"},{"inputs":[],"name":"NoCommitToProcess","type":"error"},{"inputs":[],"name":"NoCommitToWithdraw","type":"error"},{"inputs":[],"name":"NonexistentCommit","type":"error"},{"inputs":[],"name":"NotEmergencyHandler","type":"error"},{"inputs":[],"name":"NotSwapFacility","type":"error"},{"inputs":[],"name":"NotWhitelisted","type":"error"},{"inputs":[],"name":"OracleAnswerNegative","type":"error"},{"inputs":[],"name":"ZeroAddress","type":"error"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":true,"internalType":"address","name":"spender","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"}],"name":"Approval","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":true,"internalType":"uint256","name":"id","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"cumulativeAmountEnd","type":"uint256"}],"name":"BorrowerCommit","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":true,"internalType":"uint256","name":"id","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"includedAmount","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"excludedAmount","type":"uint256"}],"name":"BorrowerCommitmentProcessed","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":true,"internalType":"uint256","name":"id","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"}],"name":"BorrowerWithdraw","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"user","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"}],"name":"EmergencyBurn","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"from","type":"address"},{"indexed":true,"internalType":"address","name":"to","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"}],"name":"EmergencyWithdrawExecuted","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"enum State","name":"prevState","type":"uint8"},{"indexed":false,"internalType":"enum State","name":"newState","type":"uint8"}],"name":"ExplictStateTransition","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":true,"internalType":"uint256","name":"id","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"cumulativeAmountEnd","type":"uint256"}],"name":"LenderCommit","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":true,"internalType":"uint256","name":"id","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"includedAmount","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"excludedAmount","type":"uint256"}],"name":"LenderCommitmentProcessed","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":false,"internalType":"uint256","name":"sharesRedeemed","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"}],"name":"LenderWithdraw","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"from","type":"address"},{"indexed":true,"internalType":"address","name":"to","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"}],"name":"Transfer","type":"event"},{"inputs":[],"name":"BILL_TOKEN","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"BORROWER_RETURN_FEE","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"COMMIT_PHASE_END","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"DOMAIN_SEPARATOR","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"EMERGENCY_HANDLER","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"LENDER_RETURN_BPS_FEED","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"LENDER_RETURN_FEE","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"LEVERAGE_BPS","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"MIN_BORROW_DEPOSIT","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"POOL_PHASE_DURATION","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"POOL_PHASE_END","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"POST_HOLD_SWAP_TIMEOUT_END","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"PRE_HOLD_SWAP_TIMEOUT_END","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"SWAP_FACILITY","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"TREASURY","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"UNDERLYING_TOKEN","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"WHITELIST","outputs":[{"internalType":"contract IWhitelist","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"},{"internalType":"address","name":"","type":"address"}],"name":"allowance","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"spender","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"approve","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"balanceOf","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"outToken","type":"address"},{"internalType":"uint256","name":"outAmount","type":"uint256"}],"name":"completeSwap","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"decimals","outputs":[{"internalType":"uint8","name":"","type":"uint8"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"amount","type":"uint256"},{"internalType":"bytes32[]","name":"proof","type":"bytes32[]"}],"name":"depositBorrower","outputs":[{"internalType":"uint256","name":"newId","type":"uint256"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"depositLender","outputs":[{"internalType":"uint256","name":"newId","type":"uint256"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"emergencyWithdraw","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"executeEmergencyBurn","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"id","type":"uint256"}],"name":"getBorrowCommitment","outputs":[{"components":[{"internalType":"address","name":"owner","type":"address"},{"internalType":"uint128","name":"committedAmount","type":"uint128"},{"internalType":"uint128","name":"cumulativeAmountEnd","type":"uint128"}],"internalType":"struct AssetCommitment","name":"","type":"tuple"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getDistributionInfo","outputs":[{"internalType":"uint128","name":"","type":"uint128"},{"internalType":"uint128","name":"","type":"uint128"},{"internalType":"uint128","name":"","type":"uint128"},{"internalType":"uint128","name":"","type":"uint128"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"id","type":"uint256"}],"name":"getLenderCommitment","outputs":[{"components":[{"internalType":"address","name":"owner","type":"address"},{"internalType":"uint128","name":"committedAmount","type":"uint128"},{"internalType":"uint128","name":"cumulativeAmountEnd","type":"uint128"}],"internalType":"struct AssetCommitment","name":"","type":"tuple"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getTotalBorrowCommitment","outputs":[{"internalType":"uint256","name":"totalAssetsCommitted","type":"uint256"},{"internalType":"uint256","name":"totalCommitmentCount","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getTotalLendCommitment","outputs":[{"internalType":"uint256","name":"totalAssetsCommitted","type":"uint256"},{"internalType":"uint256","name":"totalCommitmentCount","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes32[]","name":"proof","type":"bytes32[]"}],"name":"initiatePostHoldSwap","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes32[]","name":"proof","type":"bytes32[]"}],"name":"initiatePreHoldSwap","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"name","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"nonces","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"},{"internalType":"address","name":"spender","type":"address"},{"internalType":"uint256","name":"value","type":"uint256"},{"internalType":"uint256","name":"deadline","type":"uint256"},{"internalType":"uint8","name":"v","type":"uint8"},{"internalType":"bytes32","name":"r","type":"bytes32"},{"internalType":"bytes32","name":"s","type":"bytes32"}],"name":"permit","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"id","type":"uint256"}],"name":"processBorrowerCommit","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"id","type":"uint256"}],"name":"processLenderCommit","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"state","outputs":[{"internalType":"enum State","name":"","type":"uint8"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"symbol","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalMatchAmount","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"transfer","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"transferFrom","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"id","type":"uint256"}],"name":"withdrawBorrower","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"shares","type":"uint256"}],"name":"withdrawLender","outputs":[],"stateMutability":"nonpayable","type":"function"}]

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Constructor Arguments (ABI-Encoded and is the last bytes of the Contract Creation Code above)

000000000000000000000000a0b86991c6218b36c1d19d4a2e9eb0ce3606eb48000000000000000000000000ca30c93b02514f86d5c86a6e375e3a330b435fb500000000000000000000000095e67b8d297c2e65b6385d9786cdb172b9554f0000000000000000000000000075a2725144fcd9f5809c9d295bc2dc48873aac56000000000000000000000000fdc004b6b92b45b224d37dc45dba5ca82c1e08f2000000000000000000000000de1f5f2d69339171d679fb84e4562febb71f36e6000000000000000000000000f1ec857338e75f5018be992d6c29605d4063b2e200000000000000000000000000000000000000000000000000000000000927c0000000000000000000000000000000000000000000000000000000000098968000000000000000000000000000000000000000000000000000000000000321900000000000000000000000000000000000000000000000000000000000093a800000000000000000000000000000000000000000000000000000000000ed4e00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000200000000000000000000000000000000000000000000000000000000000000026000000000000000000000000000000000000000000000000000000000000000285465726d20426f756e64205969656c642036206d6f6e7468206170722d323032342d426174636841000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000c5442592d61707232342861290000000000000000000000000000000000000000

-----Decoded View---------------
Arg [0] : underlyingToken (address): 0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48
Arg [1] : billToken (address): 0xCA30c93B02514f86d5C86a6e375E3A330B435Fb5
Arg [2] : whitelist (address): 0x95e67b8d297C2E65B6385D9786CDb172B9554f00
Arg [3] : swapFacility (address): 0x75a2725144Fcd9f5809c9d295Bc2dC48873aaC56
Arg [4] : treasury (address): 0xFdC004B6B92b45B224d37dc45dBA5cA82c1e08f2
Arg [5] : lenderReturnBpsFeed (address): 0xDe1f5F2d69339171D679FB84E4562febb71F36E6
Arg [6] : emergencyHandler (address): 0xF1ec857338e75f5018Be992d6c29605D4063b2E2
Arg [7] : leverageBps (uint256): 600000
Arg [8] : minBorrowDeposit (uint256): 10000000
Arg [9] : commitPhaseDuration (uint256): 205200
Arg [10] : swapTimeout (uint256): 604800
Arg [11] : poolPhaseDuration (uint256): 15552000
Arg [12] : lenderReturnFee (uint256): 0
Arg [13] : borrowerReturnFee (uint256): 0
Arg [14] : name (string): Term Bound Yield 6 month apr-2024-BatchA
Arg [15] : symbol (string): TBY-apr24(a)

-----Encoded View---------------
21 Constructor Arguments found :
Arg [0] : 000000000000000000000000a0b86991c6218b36c1d19d4a2e9eb0ce3606eb48
Arg [1] : 000000000000000000000000ca30c93b02514f86d5c86a6e375e3a330b435fb5
Arg [2] : 00000000000000000000000095e67b8d297c2e65b6385d9786cdb172b9554f00
Arg [3] : 00000000000000000000000075a2725144fcd9f5809c9d295bc2dc48873aac56
Arg [4] : 000000000000000000000000fdc004b6b92b45b224d37dc45dba5ca82c1e08f2
Arg [5] : 000000000000000000000000de1f5f2d69339171d679fb84e4562febb71f36e6
Arg [6] : 000000000000000000000000f1ec857338e75f5018be992d6c29605d4063b2e2
Arg [7] : 00000000000000000000000000000000000000000000000000000000000927c0
Arg [8] : 0000000000000000000000000000000000000000000000000000000000989680
Arg [9] : 0000000000000000000000000000000000000000000000000000000000032190
Arg [10] : 0000000000000000000000000000000000000000000000000000000000093a80
Arg [11] : 0000000000000000000000000000000000000000000000000000000000ed4e00
Arg [12] : 0000000000000000000000000000000000000000000000000000000000000000
Arg [13] : 0000000000000000000000000000000000000000000000000000000000000000
Arg [14] : 0000000000000000000000000000000000000000000000000000000000000200
Arg [15] : 0000000000000000000000000000000000000000000000000000000000000260
Arg [16] : 0000000000000000000000000000000000000000000000000000000000000028
Arg [17] : 5465726d20426f756e64205969656c642036206d6f6e7468206170722d323032
Arg [18] : 342d426174636841000000000000000000000000000000000000000000000000
Arg [19] : 000000000000000000000000000000000000000000000000000000000000000c
Arg [20] : 5442592d61707232342861290000000000000000000000000000000000000000


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A contract address hosts a smart contract, which is a set of code stored on the blockchain that runs when predetermined conditions are met. Learn more about addresses in our Knowledge Base.