Contract 0xc07f52b6c6cd1c2305335234228381368b5d7c82 7

 

Contract Overview

Balance:
0 ETH

ETH Value:
$0.00

Token:
Txn Hash Method
Block
From
To
Value [Txn Fee]
0x65b65ae1d3cd064411f51a1dc88e515fbf241a1091fcada7e62523811ef32169Approve1426398872023-10-21 15:42:59183 days 21 hrs ago0xd204e3dc1937d3a30fc6f20abc48ac5506c94d1e IN  0xc07f52b6c6cd1c2305335234228381368b5d7c820 ETH0.00003990.1
0x5ce3ab7dc705ec361f3efde880dbb16278ff8486945fc5b560e057bfbd9f065eBorrow Approve731258702023-03-24 8:55:54395 days 3 hrs ago0x4d172ebf657c0e7d9af8408abe00002d7e20a243 IN  0xc07f52b6c6cd1c2305335234228381368b5d7c820 ETH0.00003894 0.1
0x2f4697bf9410ba834b98341cf81e64f801dcee3fb302da098f92eff0955970eaBorrow Approve729400522023-03-23 20:17:50395 days 16 hrs ago0x2b0c06be831a935b66c95f3d99e6fdebb2660df3 IN  0xc07f52b6c6cd1c2305335234228381368b5d7c820 ETH0.00004569 0.1
0x88967d23980645906a34100a2f0d53f804ee047f315a2732c8f8a081bcf4c1aaApprove702515282023-03-16 1:46:08403 days 11 hrs ago0x5920ca4a51d93052f111e90c387f70bcf723ea3f IN  0xc07f52b6c6cd1c2305335234228381368b5d7c820 ETH0.000053770.1
0x79439b7d9e1b0ee6630e34ecd7a5d428ee6cf87590694e7ddb4cc98da078509dBorrow Approve693923732023-03-13 9:06:14406 days 3 hrs ago0xef33c88cbdd4f8e80f4e95cd59802560fd8ae585 IN  0xc07f52b6c6cd1c2305335234228381368b5d7c820 ETH0.00003281 0.1
0x967322d4f7d1c3d3491a8953f713838563b9549ae0ee391f14a255d34e8672fcBorrow Approve668977962023-03-05 5:27:48414 days 7 hrs ago0xe9c166724be16f9af12bde6bfa3f09e1ab98949e IN  0xc07f52b6c6cd1c2305335234228381368b5d7c820 ETH0.00003902 0.1
0x64496e24dc10f056a18e4ce63952e8c4b6fefac4fbafffd88ea24d3d8ea89957Borrow Approve668434132023-03-05 1:03:26414 days 11 hrs ago0x70000e997a0144424a0af5ddfe7992872b66bfc6 IN  0xc07f52b6c6cd1c2305335234228381368b5d7c820 ETH0.00004255 0.1
0x49c6dc5fc7f5ab6f0ea308fbcec7728ed5412ee0188939d9e549ba486d8db159Borrow Approve661093492023-03-02 16:03:05416 days 20 hrs ago0x03098d021e9f45e594f1588a30078e95410df80e IN  0xc07f52b6c6cd1c2305335234228381368b5d7c820 ETH0.000066150.1
0xdf48b3e3a08b55022ca2fd770a9a8ab0d301d314165f020b4d9505e4f7294b66Borrow Approve659010812023-03-02 1:07:55417 days 11 hrs ago0x8ab8226e45224cd2330934d0cc5cc25dcab0b7ba IN  0xc07f52b6c6cd1c2305335234228381368b5d7c820 ETH0.00004516 0.1
0xe9431d8399053ae943b3664150b64021aa33a9492c8969cea2efc6b0faf668faBorrow Approve651545112023-02-27 17:42:42419 days 19 hrs ago0x6aef48ea854bc0e805232cecbab2fab592037c19 IN  0xc07f52b6c6cd1c2305335234228381368b5d7c820 ETH0.000058830.1
0x914b29e0b4c8639d3a4a9a7d76926866f86535ff12fc6e9d49d558546742b508Borrow Approve643233502023-02-25 4:32:31422 days 8 hrs ago0xb9b98205f564666f7b432b942642e45d23acd5d4 IN  0xc07f52b6c6cd1c2305335234228381368b5d7c820 ETH0.0000398 0.1
0xd97b93748b31221d8b25fb8cb50a014446aabc1a9c276049a3813339997690c9Borrow Approve638923092023-02-23 20:47:06423 days 16 hrs ago0x28a416e90a763b2261dc80e02a21cb7f9770b053 IN  0xc07f52b6c6cd1c2305335234228381368b5d7c820 ETH0.00008816 0.1
0xebf497347d9448ab9346029d24db99f6dd493febb67df2bf4945336a3a9fe719Borrow Approve638743842023-02-23 19:27:56423 days 17 hrs ago0x7e0f45e65ef57bf3cc8e635c1027ce62a9239a53 IN  0xc07f52b6c6cd1c2305335234228381368b5d7c820 ETH0.00007925 0.1
0x45b1bb860f63b1d0344c2452de4e7218a3d958c84ff773839b532899961c216cBorrow Approve638596282023-02-23 18:21:55423 days 18 hrs ago0xcbbadd610cb89c65e2c53f798627a12f72c53ad5 IN  0xc07f52b6c6cd1c2305335234228381368b5d7c820 ETH0.000088230.1
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Latest 25 internal transaction
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0x84114d770ec116f61925cc84bc70d8892d4faea7856ee44de064a7cb22cb5717720705542023-03-21 9:12:27398 days 3 hrs ago 0xc07f52b6c6cd1c2305335234228381368b5d7c82 Liquity USD: LUSD Token0 ETH
0x84114d770ec116f61925cc84bc70d8892d4faea7856ee44de064a7cb22cb5717720705542023-03-21 9:12:27398 days 3 hrs ago 0xc07f52b6c6cd1c2305335234228381368b5d7c82 0x25006ea73bc2c9096c90c3b32abc57d439b9add40 ETH
0x84114d770ec116f61925cc84bc70d8892d4faea7856ee44de064a7cb22cb5717720705542023-03-21 9:12:27398 days 3 hrs ago 0xc07f52b6c6cd1c2305335234228381368b5d7c82 Liquity USD: LUSD Token0 ETH
0x84114d770ec116f61925cc84bc70d8892d4faea7856ee44de064a7cb22cb5717720705542023-03-21 9:12:27398 days 3 hrs ago 0x25006ea73bc2c9096c90c3b32abc57d439b9add4 0xc07f52b6c6cd1c2305335234228381368b5d7c820 ETH
0x84114d770ec116f61925cc84bc70d8892d4faea7856ee44de064a7cb22cb5717720705542023-03-21 9:12:27398 days 3 hrs ago 0x0022358ebfd5261c325f8160c7c17bc8671d07b4 0xc07f52b6c6cd1c2305335234228381368b5d7c820 ETH
0x84114d770ec116f61925cc84bc70d8892d4faea7856ee44de064a7cb22cb5717720705542023-03-21 9:12:27398 days 3 hrs ago 0xc07f52b6c6cd1c2305335234228381368b5d7c82 0x0022358ebfd5261c325f8160c7c17bc8671d07b40 ETH
0x84114d770ec116f61925cc84bc70d8892d4faea7856ee44de064a7cb22cb5717720705542023-03-21 9:12:27398 days 3 hrs ago 0xc07f52b6c6cd1c2305335234228381368b5d7c82 Liquity USD: LUSD Token0 ETH
0x84114d770ec116f61925cc84bc70d8892d4faea7856ee44de064a7cb22cb5717720705542023-03-21 9:12:27398 days 3 hrs ago 0x0022358ebfd5261c325f8160c7c17bc8671d07b4 0xc07f52b6c6cd1c2305335234228381368b5d7c820 ETH
0x49a7b5cb476a494b9d4958e3aaa87deae9cf148b5318751372c718217dce49f0712013032023-03-18 20:22:26400 days 16 hrs ago 0x25006ea73bc2c9096c90c3b32abc57d439b9add4 0xc07f52b6c6cd1c2305335234228381368b5d7c820 ETH
0x49a7b5cb476a494b9d4958e3aaa87deae9cf148b5318751372c718217dce49f0712013032023-03-18 20:22:26400 days 16 hrs ago 0xc07f52b6c6cd1c2305335234228381368b5d7c82 Liquity USD: LUSD Token0 ETH
0x49a7b5cb476a494b9d4958e3aaa87deae9cf148b5318751372c718217dce49f0712013032023-03-18 20:22:26400 days 16 hrs ago 0xc07f52b6c6cd1c2305335234228381368b5d7c82 Liquity USD: LUSD Token0 ETH
0x49a7b5cb476a494b9d4958e3aaa87deae9cf148b5318751372c718217dce49f0712013032023-03-18 20:22:26400 days 16 hrs ago 0x0022358ebfd5261c325f8160c7c17bc8671d07b4 0xc07f52b6c6cd1c2305335234228381368b5d7c820 ETH
0x49a7b5cb476a494b9d4958e3aaa87deae9cf148b5318751372c718217dce49f0712013032023-03-18 20:22:26400 days 16 hrs ago 0x0022358ebfd5261c325f8160c7c17bc8671d07b4 0xc07f52b6c6cd1c2305335234228381368b5d7c820 ETH
0x49a7b5cb476a494b9d4958e3aaa87deae9cf148b5318751372c718217dce49f0712013032023-03-18 20:22:26400 days 16 hrs ago 0x0022358ebfd5261c325f8160c7c17bc8671d07b4 0xc07f52b6c6cd1c2305335234228381368b5d7c820 ETH
0x49a7b5cb476a494b9d4958e3aaa87deae9cf148b5318751372c718217dce49f0712013032023-03-18 20:22:26400 days 16 hrs ago 0x0022358ebfd5261c325f8160c7c17bc8671d07b4 0xc07f52b6c6cd1c2305335234228381368b5d7c820 ETH
0xdb809e8bf82d652bd5119c725f76302920bf3b1df92d79e8272d636f62e3bb00711341322023-03-18 15:38:05400 days 21 hrs ago 0xc07f52b6c6cd1c2305335234228381368b5d7c82 Liquity USD: LUSD Token0 ETH
0xdb809e8bf82d652bd5119c725f76302920bf3b1df92d79e8272d636f62e3bb00711341322023-03-18 15:38:05400 days 21 hrs ago 0xc07f52b6c6cd1c2305335234228381368b5d7c82 0x25006ea73bc2c9096c90c3b32abc57d439b9add40 ETH
0xdb809e8bf82d652bd5119c725f76302920bf3b1df92d79e8272d636f62e3bb00711341322023-03-18 15:38:05400 days 21 hrs ago 0xc07f52b6c6cd1c2305335234228381368b5d7c82 Liquity USD: LUSD Token0 ETH
0xdb809e8bf82d652bd5119c725f76302920bf3b1df92d79e8272d636f62e3bb00711341322023-03-18 15:38:05400 days 21 hrs ago 0x25006ea73bc2c9096c90c3b32abc57d439b9add4 0xc07f52b6c6cd1c2305335234228381368b5d7c820 ETH
0xdb809e8bf82d652bd5119c725f76302920bf3b1df92d79e8272d636f62e3bb00711341322023-03-18 15:38:05400 days 21 hrs ago 0x0022358ebfd5261c325f8160c7c17bc8671d07b4 0xc07f52b6c6cd1c2305335234228381368b5d7c820 ETH
0xdb809e8bf82d652bd5119c725f76302920bf3b1df92d79e8272d636f62e3bb00711341322023-03-18 15:38:05400 days 21 hrs ago 0xc07f52b6c6cd1c2305335234228381368b5d7c82 0x0022358ebfd5261c325f8160c7c17bc8671d07b40 ETH
0xdb809e8bf82d652bd5119c725f76302920bf3b1df92d79e8272d636f62e3bb00711341322023-03-18 15:38:05400 days 21 hrs ago 0xc07f52b6c6cd1c2305335234228381368b5d7c82 Liquity USD: LUSD Token0 ETH
0xdb809e8bf82d652bd5119c725f76302920bf3b1df92d79e8272d636f62e3bb00711341322023-03-18 15:38:05400 days 21 hrs ago 0x0022358ebfd5261c325f8160c7c17bc8671d07b4 0xc07f52b6c6cd1c2305335234228381368b5d7c820 ETH
0x695b179c4394911891076a056a004ba0ccd1070070c6d61f379e2a58662bd5ea706875722023-03-17 8:34:15402 days 4 hrs ago 0xc07f52b6c6cd1c2305335234228381368b5d7c82 Liquity USD: LUSD Token0 ETH
0x695b179c4394911891076a056a004ba0ccd1070070c6d61f379e2a58662bd5ea706875722023-03-17 8:34:15402 days 4 hrs ago 0xc07f52b6c6cd1c2305335234228381368b5d7c82 0x25006ea73bc2c9096c90c3b32abc57d439b9add40 ETH
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Similar Match Source Code
This contract matches the deployed Bytecode of the Source Code for Contract 0xF64A9ebC4c986735AD318Ab58baa5e10B749b3b6
The constructor portion of the code might be different and could alter the actual behaviour of the contract

Contract Name:
Borrowable

Compiler Version
v0.5.16+commit.9c3226ce

Optimization Enabled:
Yes with 200 runs

Other Settings:
default evmVersion
File 1 of 16 : Borrowable.sol
pragma solidity =0.5.16;

import "./PoolToken.sol";
import "./BAllowance.sol";
import "./BInterestRateModel.sol";
import "./BSetter.sol";
import "./BStorage.sol";
import "./interfaces/IBorrowable.sol";
import "./interfaces/ICollateral.sol";
import "./interfaces/ITarotCallee.sol";
import "./interfaces/IERC20.sol";
import "./interfaces/IFactory.sol";
import "./interfaces/IBorrowTracker.sol";
import "./libraries/Math.sol";

contract Borrowable is
    IBorrowable,
    PoolToken,
    BStorage,
    BSetter,
    BInterestRateModel,
    BAllowance
{
    uint256 public constant BORROW_FEE = 0.0001e18; //0.01%

    event Borrow(
        address indexed sender,
        address indexed borrower,
        address indexed receiver,
        uint256 borrowAmount,
        uint256 repayAmount,
        uint256 accountBorrowsPrior,
        uint256 accountBorrows,
        uint256 totalBorrows
    );
    event Liquidate(
        address indexed sender,
        address indexed borrower,
        address indexed liquidator,
        uint256 seizeTokens,
        uint256 repayAmount,
        uint256 accountBorrowsPrior,
        uint256 accountBorrows,
        uint256 totalBorrows
    );

    constructor() public {}

    /*** PoolToken ***/

    function _update() internal {
        super._update();
        _calculateBorrowRate();
    }

    function _mintReserves(uint256 _exchangeRate, uint256 _totalSupply)
        internal
        returns (uint256)
    {
        uint256 _exchangeRateLast = exchangeRateLast;
        if (_exchangeRate > _exchangeRateLast) {
            uint256 _exchangeRateNew =
                _exchangeRate.sub(
                    _exchangeRate.sub(_exchangeRateLast).mul(reserveFactor).div(
                        1e18
                    )
                );
            uint256 liquidity =
                _totalSupply.mul(_exchangeRate).div(_exchangeRateNew).sub(
                    _totalSupply
                );
            if (liquidity > 0) {
                address reservesManager = IFactory(factory).reservesManager();
                _mint(reservesManager, liquidity);
            }
            exchangeRateLast = _exchangeRateNew;
            return _exchangeRateNew;
        } else return _exchangeRate;
    }

    function exchangeRate() public accrue returns (uint256) {
        uint256 _totalSupply = totalSupply;
        uint256 _actualBalance = totalBalance.add(totalBorrows);
        if (_totalSupply == 0 || _actualBalance == 0)
            return initialExchangeRate;
        uint256 _exchangeRate = _actualBalance.mul(1e18).div(_totalSupply);
        return _mintReserves(_exchangeRate, _totalSupply);
    }

    // force totalBalance to match real balance
    function sync() external nonReentrant update accrue {}

    /*** Borrowable ***/

    // this is the stored borrow balance; the current borrow balance may be slightly higher
    function borrowBalance(address borrower) public view returns (uint256) {
        BorrowSnapshot memory borrowSnapshot = borrowBalances[borrower];
        if (borrowSnapshot.interestIndex == 0) return 0; // not initialized
        return
            uint256(borrowSnapshot.principal).mul(borrowIndex).div(
                borrowSnapshot.interestIndex
            );
    }

    function _trackBorrow(
        address borrower,
        uint256 accountBorrows,
        uint256 _borrowIndex
    ) internal {
        address _borrowTracker = borrowTracker;
        if (_borrowTracker == address(0)) return;
        IBorrowTracker(_borrowTracker).trackBorrow(
            borrower,
            accountBorrows,
            _borrowIndex
        );
    }

    function _updateBorrow(
        address borrower,
        uint256 borrowAmount,
        uint256 repayAmount
    )
        private
        returns (
            uint256 accountBorrowsPrior,
            uint256 accountBorrows,
            uint256 _totalBorrows
        )
    {
        accountBorrowsPrior = borrowBalance(borrower);
        if (borrowAmount == repayAmount)
            return (accountBorrowsPrior, accountBorrowsPrior, totalBorrows);
        uint112 _borrowIndex = borrowIndex;
        if (borrowAmount > repayAmount) {
            BorrowSnapshot storage borrowSnapshot = borrowBalances[borrower];
            uint256 increaseAmount = borrowAmount - repayAmount;
            accountBorrows = accountBorrowsPrior.add(increaseAmount);
            borrowSnapshot.principal = safe112(accountBorrows);
            borrowSnapshot.interestIndex = _borrowIndex;
            _totalBorrows = uint256(totalBorrows).add(increaseAmount);
            totalBorrows = safe112(_totalBorrows);
        } else {
            BorrowSnapshot storage borrowSnapshot = borrowBalances[borrower];
            uint256 decreaseAmount = repayAmount - borrowAmount;
            accountBorrows = accountBorrowsPrior > decreaseAmount
                ? accountBorrowsPrior - decreaseAmount
                : 0;
            borrowSnapshot.principal = safe112(accountBorrows);
            if (accountBorrows == 0) {
                borrowSnapshot.interestIndex = 0;
            } else {
                borrowSnapshot.interestIndex = _borrowIndex;
            }
            uint256 actualDecreaseAmount =
                accountBorrowsPrior.sub(accountBorrows);
            _totalBorrows = totalBorrows; // gas savings
            _totalBorrows = _totalBorrows > actualDecreaseAmount
                ? _totalBorrows - actualDecreaseAmount
                : 0;
            totalBorrows = safe112(_totalBorrows);
        }
        _trackBorrow(borrower, accountBorrows, _borrowIndex);
    }

    // this low-level function should be called from another contract
    function borrow(
        address borrower,
        address receiver,
        uint256 borrowAmount,
        bytes calldata data
    ) external nonReentrant update accrue {
        uint256 _totalBalance = totalBalance;
        require(borrowAmount <= _totalBalance, "Tarot: INSUFFICIENT_CASH");
        _checkBorrowAllowance(borrower, msg.sender, borrowAmount);

        // optimistically transfer funds
        if (borrowAmount > 0) _safeTransfer(receiver, borrowAmount);
        if (data.length > 0)
            ITarotCallee(receiver).tarotBorrow(
                msg.sender,
                borrower,
                borrowAmount,
                data
            );
        uint256 balance = IERC20(underlying).balanceOf(address(this));

        uint256 borrowFee = borrowAmount.mul(BORROW_FEE).div(1e18);
        uint256 adjustedBorrowAmount = borrowAmount.add(borrowFee);
        uint256 repayAmount = balance.add(borrowAmount).sub(_totalBalance);
        (
            uint256 accountBorrowsPrior,
            uint256 accountBorrows,
            uint256 _totalBorrows
        ) = _updateBorrow(borrower, adjustedBorrowAmount, repayAmount);

        if (adjustedBorrowAmount > repayAmount)
            require(
                ICollateral(collateral).canBorrow(
                    borrower,
                    address(this),
                    accountBorrows
                ),
                "Tarot: INSUFFICIENT_LIQUIDITY"
            );

        emit Borrow(
            msg.sender,
            borrower,
            receiver,
            borrowAmount,
            repayAmount,
            accountBorrowsPrior,
            accountBorrows,
            _totalBorrows
        );
    }

    // this low-level function should be called from another contract
    function liquidate(address borrower, address liquidator)
        external
        nonReentrant
        update
        accrue
        returns (uint256 seizeTokens)
    {
        uint256 balance = IERC20(underlying).balanceOf(address(this));
        uint256 repayAmount = balance.sub(totalBalance);

        uint256 actualRepayAmount =
            Math.min(borrowBalance(borrower), repayAmount);
        seizeTokens = ICollateral(collateral).seize(
            liquidator,
            borrower,
            actualRepayAmount
        );
        (
            uint256 accountBorrowsPrior,
            uint256 accountBorrows,
            uint256 _totalBorrows
        ) = _updateBorrow(borrower, 0, repayAmount);

        emit Liquidate(
            msg.sender,
            borrower,
            liquidator,
            seizeTokens,
            repayAmount,
            accountBorrowsPrior,
            accountBorrows,
            _totalBorrows
        );
    }

    function trackBorrow(address borrower) external {
        _trackBorrow(borrower, borrowBalance(borrower), borrowIndex);
    }

    modifier accrue() {
        accrueInterest();
        _;
    }
}

File 2 of 16 : PoolToken.sol
pragma solidity =0.5.16;

import "./TarotERC20.sol";
import "./interfaces/IERC20.sol";
import "./interfaces/IPoolToken.sol";
import "./libraries/SafeMath.sol";

contract PoolToken is IPoolToken, TarotERC20 {
    uint256 internal constant initialExchangeRate = 1e18;
    address public underlying;
    address public factory;
    uint256 public totalBalance;
    uint256 public constant MINIMUM_LIQUIDITY = 1000;

    event Mint(
        address indexed sender,
        address indexed minter,
        uint256 mintAmount,
        uint256 mintTokens
    );
    event Redeem(
        address indexed sender,
        address indexed redeemer,
        uint256 redeemAmount,
        uint256 redeemTokens
    );
    event Sync(uint256 totalBalance);

    /*** Initialize ***/

    // called once by the factory
    function _setFactory() external {
        require(factory == address(0), "Tarot: FACTORY_ALREADY_SET");
        factory = msg.sender;
    }

    /*** PoolToken ***/

    function _update() internal {
        totalBalance = IERC20(underlying).balanceOf(address(this));
        emit Sync(totalBalance);
    }

    function exchangeRate() public returns (uint256) {
        uint256 _totalSupply = totalSupply; // gas savings
        uint256 _totalBalance = totalBalance; // gas savings
        if (_totalSupply == 0 || _totalBalance == 0) return initialExchangeRate;
        return _totalBalance.mul(1e18).div(_totalSupply);
    }

    // this low-level function should be called from another contract
    function mint(address minter)
        external
        nonReentrant
        update
        returns (uint256 mintTokens)
    {
        uint256 balance = IERC20(underlying).balanceOf(address(this));
        uint256 mintAmount = balance.sub(totalBalance);
        mintTokens = mintAmount.mul(1e18).div(exchangeRate());

        if (totalSupply == 0) {
            // permanently lock the first MINIMUM_LIQUIDITY tokens
            mintTokens = mintTokens.sub(MINIMUM_LIQUIDITY);
            _mint(address(0), MINIMUM_LIQUIDITY);
        }
        require(mintTokens > 0, "Tarot: MINT_AMOUNT_ZERO");
        _mint(minter, mintTokens);
        emit Mint(msg.sender, minter, mintAmount, mintTokens);
    }

    // this low-level function should be called from another contract
    function redeem(address redeemer)
        external
        nonReentrant
        update
        returns (uint256 redeemAmount)
    {
        uint256 redeemTokens = balanceOf[address(this)];
        redeemAmount = redeemTokens.mul(exchangeRate()).div(1e18);

        require(redeemAmount > 0, "Tarot: REDEEM_AMOUNT_ZERO");
        require(redeemAmount <= totalBalance, "Tarot: INSUFFICIENT_CASH");
        _burn(address(this), redeemTokens);
        _safeTransfer(redeemer, redeemAmount);
        emit Redeem(msg.sender, redeemer, redeemAmount, redeemTokens);
    }

    // force real balance to match totalBalance
    function skim(address to) external nonReentrant {
        _safeTransfer(
            to,
            IERC20(underlying).balanceOf(address(this)).sub(totalBalance)
        );
    }

    // force totalBalance to match real balance
    function sync() external nonReentrant update {}

    /*** Utilities ***/

    // same safe transfer function used by UniSwapV2 (with fixed underlying)
    bytes4 private constant SELECTOR =
        bytes4(keccak256(bytes("transfer(address,uint256)")));

    function _safeTransfer(address to, uint256 amount) internal {
        (bool success, bytes memory data) =
            underlying.call(abi.encodeWithSelector(SELECTOR, to, amount));
        require(
            success && (data.length == 0 || abi.decode(data, (bool))),
            "Tarot: TRANSFER_FAILED"
        );
    }

    // prevents a contract from calling itself, directly or indirectly.
    bool internal _notEntered = true;
    modifier nonReentrant() {
        require(_notEntered, "Tarot: REENTERED");
        _notEntered = false;
        _;
        _notEntered = true;
    }

    // update totalBalance with current balance
    modifier update() {
        _;
        _update();
    }
}

File 3 of 16 : BAllowance.sol
pragma solidity =0.5.16;

import "./BStorage.sol";
import "./PoolToken.sol";

contract BAllowance is PoolToken, BStorage {
    event BorrowApproval(
        address indexed owner,
        address indexed spender,
        uint256 value
    );

    function _borrowApprove(
        address owner,
        address spender,
        uint256 value
    ) private {
        borrowAllowance[owner][spender] = value;
        emit BorrowApproval(owner, spender, value);
    }

    function borrowApprove(address spender, uint256 value)
        external
        returns (bool)
    {
        _borrowApprove(msg.sender, spender, value);
        return true;
    }

    function _checkBorrowAllowance(
        address owner,
        address spender,
        uint256 value
    ) internal {
        uint256 _borrowAllowance = borrowAllowance[owner][spender];
        if (spender != owner && _borrowAllowance != uint256(-1)) {
            require(_borrowAllowance >= value, "Tarot: BORROW_NOT_ALLOWED");
            borrowAllowance[owner][spender] = _borrowAllowance - value;
        }
    }

    // keccak256("BorrowPermit(address owner,address spender,uint256 value,uint256 nonce,uint256 deadline)");
    bytes32 public constant BORROW_PERMIT_TYPEHASH =
        0xf6d86ed606f871fa1a557ac0ba607adce07767acf53f492fb215a1a4db4aea6f;

    function borrowPermit(
        address owner,
        address spender,
        uint256 value,
        uint256 deadline,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) external {
        _checkSignature(
            owner,
            spender,
            value,
            deadline,
            v,
            r,
            s,
            BORROW_PERMIT_TYPEHASH
        );
        _borrowApprove(owner, spender, value);
    }
}

File 4 of 16 : BInterestRateModel.sol
pragma solidity =0.5.16;

import "./BStorage.sol";
import "./PoolToken.sol";

contract BInterestRateModel is PoolToken, BStorage {

	// When utilization is 100% borrowRate is kinkBorrowRate * KINK_MULTIPLIER
	// kinkBorrowRate relative adjustment per second belongs to [1-adjustSpeed, 1+adjustSpeed*(KINK_MULTIPLIER-1)]
	uint public constant KINK_MULTIPLIER = 6;
	uint public constant KINK_BORROW_RATE_MAX = 8.87874172e9; //28% per year
	uint public constant KINK_BORROW_RATE_MIN = 0.31709792e9; //1% per year

	event AccrueInterest(uint interestAccumulated, uint borrowIndex, uint totalBorrows);
	event CalculateKinkBorrowRate(uint kinkBorrowRate);
	event CalculateBorrowRate(uint borrowRate);
		
	function _calculateBorrowRate() internal {
		uint _kinkUtilizationRateLower = kinkUtilizationRateLower;
		uint _kinkUtilizationRateUpper = kinkUtilizationRateUpper;
		uint _adjustSpeed = adjustSpeed;
		uint _borrowRate = borrowRate;	
		uint _kinkBorrowRate = kinkBorrowRate;
		uint32 _rateUpdateTimestamp = rateUpdateTimestamp;		
	
		// update kinkBorrowRate using previous borrowRate
		uint32 timeElapsed = getBlockTimestamp() - _rateUpdateTimestamp; // underflow is desired
		if(timeElapsed > 0) {
			rateUpdateTimestamp = getBlockTimestamp();
			uint adjustFactor;
			
			if (_borrowRate < _kinkBorrowRate) {
				// never overflows, _kinkBorrowRate is never 0
				uint tmp = (_kinkBorrowRate - _borrowRate) * 1e18 / _kinkBorrowRate * _adjustSpeed * timeElapsed / 1e18;
				adjustFactor = tmp > 1e18 ? 0 : 1e18 - tmp;
			} else {
				// never overflows, _kinkBorrowRate is never 0
				uint tmp = (_borrowRate - _kinkBorrowRate) * 1e18 / _kinkBorrowRate * _adjustSpeed * timeElapsed / 1e18;
				adjustFactor = tmp + 1e18;
			}
			
			// never overflows
			_kinkBorrowRate = _kinkBorrowRate * adjustFactor / 1e18;
			if(_kinkBorrowRate > KINK_BORROW_RATE_MAX) _kinkBorrowRate = KINK_BORROW_RATE_MAX;
			if(_kinkBorrowRate < KINK_BORROW_RATE_MIN) _kinkBorrowRate = KINK_BORROW_RATE_MIN;

			kinkBorrowRate = uint48(_kinkBorrowRate);
			emit CalculateKinkBorrowRate(_kinkBorrowRate);
		}
		
		uint _utilizationRate;
		{ // avoid stack to deep
		uint _totalBorrows = totalBorrows; // gas savings
		uint _actualBalance = totalBalance.add(_totalBorrows);
		_utilizationRate = (_actualBalance == 0) ? 0 : _totalBorrows * 1e18 / _actualBalance;
		}
		
		// update borrowRate using the new kinkBorrowRate	
		if(_utilizationRate <= _kinkUtilizationRateLower) {
			// never overflows, _kinkUtilizationRateLower is never 0
			_borrowRate = _kinkBorrowRate * _utilizationRate / _kinkUtilizationRateLower;
		} else if (_utilizationRate <= _kinkUtilizationRateUpper) {
			_borrowRate = _kinkBorrowRate;
		} else {
			// never overflows, _kinkUtilizationRateUpper is always < 1e18
			uint overUtilization = (_utilizationRate - _kinkUtilizationRateUpper) * 1e18 / (1e18 - _kinkUtilizationRateUpper);
			// never overflows
			_borrowRate = ((KINK_MULTIPLIER - 1) * overUtilization + 1e18) * _kinkBorrowRate / 1e18;
		}
		borrowRate = uint48(_borrowRate);
		emit CalculateBorrowRate(_borrowRate);
	}
	
	// applies accrued interest to total borrows and reserves
	function accrueInterest() public {
		uint _borrowIndex = borrowIndex;
		uint _totalBorrows = totalBorrows;
		uint32 _accrualTimestamp = accrualTimestamp;
		
		uint32 blockTimestamp = getBlockTimestamp();
		if (_accrualTimestamp == blockTimestamp) return;
		uint32 timeElapsed = blockTimestamp - _accrualTimestamp; // underflow is desired
		accrualTimestamp = blockTimestamp;
		
		uint interestFactor = uint(borrowRate).mul(timeElapsed);	
		uint interestAccumulated = interestFactor.mul(_totalBorrows).div(1e18);
		_totalBorrows = _totalBorrows.add( interestAccumulated );
		_borrowIndex = _borrowIndex.add( interestFactor.mul(_borrowIndex).div(1e18) );
	
		borrowIndex = safe112(_borrowIndex);
		totalBorrows = safe112(_totalBorrows);
		emit AccrueInterest(interestAccumulated, _borrowIndex, _totalBorrows);
	}
		
	function getBlockTimestamp() public view returns (uint32) {
		return uint32(block.timestamp % 2**32);
	}
}

File 5 of 16 : BSetter.sol
pragma solidity =0.5.16;

import "./BStorage.sol";
import "./PoolToken.sol";
import "./interfaces/IFactory.sol";

contract BSetter is PoolToken, BStorage {
    uint256 public constant RESERVE_FACTOR_MAX = 0.20e18; //20%
    uint256 public constant KINK_UR_MIN = 0.50e18; //50%
    uint256 public constant KINK_UR_MAX = 0.99e18; //99%
    uint256 public constant ADJUST_SPEED_MIN = 0.05787037e12; //0.5% per day
    uint256 public constant ADJUST_SPEED_MAX = 115.74074e12; //1000% per day

    event NewReserveFactor(uint256 newReserveFactor);
    event NewKinkUtilizationRates(uint256 newKinkUtilizationRateLower, uint256 newKinkUtilizationRateUpper);
    event NewAdjustSpeed(uint256 newAdjustSpeed);
    event NewBorrowTracker(address newBorrowTracker);

    // called once by the factory at time of deployment
    function _initialize(
        string calldata _name,
        string calldata _symbol,
        address _underlying,
        address _collateral
    ) external {
        require(msg.sender == factory, "Tarot: UNAUTHORIZED"); // sufficient check
        _setName(_name, _symbol);
        underlying = _underlying;
        collateral = _collateral;
        exchangeRateLast = initialExchangeRate;
    }

    function _setReserveFactor(uint256 newReserveFactor) external nonReentrant {
        _checkSetting(newReserveFactor, 0, RESERVE_FACTOR_MAX);
        reserveFactor = newReserveFactor;
        emit NewReserveFactor(newReserveFactor);
    }

    function _setKinkUtilizationRates(uint256 newKinkUtilizationRateLower, uint256 newKinkUtilizationRateUpper)
        external
        nonReentrant
    {
        _checkSetting(newKinkUtilizationRateLower, KINK_UR_MIN, newKinkUtilizationRateUpper);
        _checkSetting(newKinkUtilizationRateUpper, newKinkUtilizationRateLower, KINK_UR_MAX);
        kinkUtilizationRateLower = newKinkUtilizationRateLower;
        kinkUtilizationRateUpper = newKinkUtilizationRateUpper;
        emit NewKinkUtilizationRates(newKinkUtilizationRateLower, newKinkUtilizationRateUpper);
    }

    function _setAdjustSpeed(uint256 newAdjustSpeed) external nonReentrant {
        _checkSetting(newAdjustSpeed, ADJUST_SPEED_MIN, ADJUST_SPEED_MAX);
        adjustSpeed = newAdjustSpeed;
        emit NewAdjustSpeed(newAdjustSpeed);
    }

    function _setBorrowTracker(address newBorrowTracker) external nonReentrant {
        _checkAdmin();
        borrowTracker = newBorrowTracker;
        emit NewBorrowTracker(newBorrowTracker);
    }

    function _checkSetting(
        uint256 parameter,
        uint256 min,
        uint256 max
    ) internal view {
        _checkAdmin();
        require(parameter >= min, "Tarot: INVALID_SETTING");
        require(parameter <= max, "Tarot: INVALID_SETTING");
    }

    function _checkAdmin() internal view {
        require(msg.sender == IFactory(factory).admin(), "Tarot: UNAUTHORIZED");
    }
}

File 6 of 16 : BStorage.sol
pragma solidity =0.5.16;

contract BStorage {
    address public collateral;

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

    struct BorrowSnapshot {
        uint112 principal; // amount in underlying when the borrow was last updated
        uint112 interestIndex; // borrow index when borrow was last updated
    }
    mapping(address => BorrowSnapshot) internal borrowBalances;

    // use one memory slot
    uint112 public borrowIndex = 1e18;
    uint112 public totalBorrows;
    uint32 public accrualTimestamp = uint32(block.timestamp % 2**32);

    uint256 public exchangeRateLast;

    // use one memory slot
    uint48 public borrowRate;
    uint48 public kinkBorrowRate = 1.5854896e9; //5% per year
    uint32 public rateUpdateTimestamp = uint32(block.timestamp % 2**32);

    uint256 public reserveFactor = 0.10e18; //10%
    uint256 public kinkUtilizationRateLower = 0.8e18; //80%
    uint256 public kinkUtilizationRateUpper = 0.9e18; //90%
    uint256 public adjustSpeed = 2.893518e12; //25% per day
    address public borrowTracker;

    function safe112(uint256 n) internal pure returns (uint112) {
        require(n < 2**112, "Tarot: SAFE112");
        return uint112(n);
    }
}

File 7 of 16 : IBorrowable.sol
pragma solidity >=0.5.0;

interface IBorrowable {
    /*** Tarot ERC20 ***/

    event Transfer(address indexed from, address indexed to, uint256 value);
    event Approval(
        address indexed owner,
        address indexed spender,
        uint256 value
    );

    function name() external pure returns (string memory);

    function symbol() external pure returns (string memory);

    function decimals() external pure returns (uint8);

    function totalSupply() external view returns (uint256);

    function balanceOf(address owner) external view returns (uint256);

    function allowance(address owner, address spender)
        external
        view
        returns (uint256);

    function approve(address spender, uint256 value) external returns (bool);

    function transfer(address to, uint256 value) external returns (bool);

    function transferFrom(
        address from,
        address to,
        uint256 value
    ) external returns (bool);

    function DOMAIN_SEPARATOR() external view returns (bytes32);

    function PERMIT_TYPEHASH() external pure returns (bytes32);

    function nonces(address owner) external view returns (uint256);

    function permit(
        address owner,
        address spender,
        uint256 value,
        uint256 deadline,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) external;

    /*** Pool Token ***/

    event Mint(
        address indexed sender,
        address indexed minter,
        uint256 mintAmount,
        uint256 mintTokens
    );
    event Redeem(
        address indexed sender,
        address indexed redeemer,
        uint256 redeemAmount,
        uint256 redeemTokens
    );
    event Sync(uint256 totalBalance);

    function underlying() external view returns (address);

    function factory() external view returns (address);

    function totalBalance() external view returns (uint256);

    function MINIMUM_LIQUIDITY() external pure returns (uint256);

    function exchangeRate() external returns (uint256);

    function mint(address minter) external returns (uint256 mintTokens);

    function redeem(address redeemer) external returns (uint256 redeemAmount);

    function skim(address to) external;

    function sync() external;

    function _setFactory() external;

    /*** Borrowable ***/

    event BorrowApproval(
        address indexed owner,
        address indexed spender,
        uint256 value
    );
    event Borrow(
        address indexed sender,
        address indexed borrower,
        address indexed receiver,
        uint256 borrowAmount,
        uint256 repayAmount,
        uint256 accountBorrowsPrior,
        uint256 accountBorrows,
        uint256 totalBorrows
    );
    event Liquidate(
        address indexed sender,
        address indexed borrower,
        address indexed liquidator,
        uint256 seizeTokens,
        uint256 repayAmount,
        uint256 accountBorrowsPrior,
        uint256 accountBorrows,
        uint256 totalBorrows
    );

    function BORROW_FEE() external pure returns (uint256);

    function collateral() external view returns (address);

    function reserveFactor() external view returns (uint256);

    function exchangeRateLast() external view returns (uint256);

    function borrowIndex() external view returns (uint256);

    function totalBorrows() external view returns (uint256);

    function borrowAllowance(address owner, address spender)
        external
        view
        returns (uint256);

    function borrowBalance(address borrower) external view returns (uint256);

    function borrowTracker() external view returns (address);

    function BORROW_PERMIT_TYPEHASH() external pure returns (bytes32);

    function borrowApprove(address spender, uint256 value)
        external
        returns (bool);

    function borrowPermit(
        address owner,
        address spender,
        uint256 value,
        uint256 deadline,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) external;

    function borrow(
        address borrower,
        address receiver,
        uint256 borrowAmount,
        bytes calldata data
    ) external;

    function liquidate(address borrower, address liquidator)
        external
        returns (uint256 seizeTokens);

    function trackBorrow(address borrower) external;

    /*** Borrowable Interest Rate Model ***/

    event AccrueInterest(
        uint256 interestAccumulated,
        uint256 borrowIndex,
        uint256 totalBorrows
    );
    event CalculateKink(uint256 kinkRate);
    event CalculateBorrowRate(uint256 borrowRate);

    function KINK_BORROW_RATE_MAX() external pure returns (uint256);

    function KINK_BORROW_RATE_MIN() external pure returns (uint256);

    function KINK_MULTIPLIER() external pure returns (uint256);

    function borrowRate() external view returns (uint256);

    function kinkBorrowRate() external view returns (uint256);

    function kinkUtilizationRateLower() external view returns (uint256);

    function kinkUtilizationRateUpper() external view returns (uint256);

    function adjustSpeed() external view returns (uint256);

    function rateUpdateTimestamp() external view returns (uint32);

    function accrualTimestamp() external view returns (uint32);

    function accrueInterest() external;

    /*** Borrowable Setter ***/

    event NewReserveFactor(uint256 newReserveFactor);
    event NewKinkUtilizationRates(uint256 newKinkUtilizationRateLower, uint256 newKinkUtilizationRateUpper);
    event NewAdjustSpeed(uint256 newAdjustSpeed);
    event NewBorrowTracker(address newBorrowTracker);

    function RESERVE_FACTOR_MAX() external pure returns (uint256);

    function KINK_UR_MIN() external pure returns (uint256);

    function KINK_UR_MAX() external pure returns (uint256);

    function ADJUST_SPEED_MIN() external pure returns (uint256);

    function ADJUST_SPEED_MAX() external pure returns (uint256);

    function _initialize(
        string calldata _name,
        string calldata _symbol,
        address _underlying,
        address _collateral
    ) external;

    function _setReserveFactor(uint256 newReserveFactor) external;

    function _setKinkUtilizationRates(uint256 newKinkUtilizationRateLower, uint256 newKinkUtilizationRateUpper) external;

    function _setAdjustSpeed(uint256 newAdjustSpeed) external;

    function _setBorrowTracker(address newBorrowTracker) external;
}

File 8 of 16 : ICollateral.sol
pragma solidity >=0.5.0;

interface ICollateral {
    /*** Tarot ERC20 ***/

    event Transfer(address indexed from, address indexed to, uint256 value);
    event Approval(
        address indexed owner,
        address indexed spender,
        uint256 value
    );

    function name() external pure returns (string memory);

    function symbol() external pure returns (string memory);

    function decimals() external pure returns (uint8);

    function totalSupply() external view returns (uint256);

    function balanceOf(address owner) external view returns (uint256);

    function allowance(address owner, address spender)
        external
        view
        returns (uint256);

    function approve(address spender, uint256 value) external returns (bool);

    function transfer(address to, uint256 value) external returns (bool);

    function transferFrom(
        address from,
        address to,
        uint256 value
    ) external returns (bool);

    function DOMAIN_SEPARATOR() external view returns (bytes32);

    function PERMIT_TYPEHASH() external pure returns (bytes32);

    function nonces(address owner) external view returns (uint256);

    function permit(
        address owner,
        address spender,
        uint256 value,
        uint256 deadline,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) external;

    /*** Pool Token ***/

    event Mint(
        address indexed sender,
        address indexed minter,
        uint256 mintAmount,
        uint256 mintTokens
    );
    event Redeem(
        address indexed sender,
        address indexed redeemer,
        uint256 redeemAmount,
        uint256 redeemTokens
    );
    event Sync(uint256 totalBalance);

    function underlying() external view returns (address);

    function factory() external view returns (address);

    function totalBalance() external view returns (uint256);

    function MINIMUM_LIQUIDITY() external pure returns (uint256);

    function exchangeRate() external returns (uint256);

    function mint(address minter) external returns (uint256 mintTokens);

    function redeem(address redeemer) external returns (uint256 redeemAmount);

    function skim(address to) external;

    function sync() external;

    function _setFactory() external;

    /*** Collateral ***/

    function borrowable0() external view returns (address);

    function borrowable1() external view returns (address);

    function tarotPriceOracle() external view returns (address);

    function safetyMargin() external view returns (uint256);

    function mTolerance() external view returns (uint256);

    function liquidationIncentive() external view returns (uint256);

    function liquidationFee() external view returns (uint256);

    function liquidationPenalty() external view returns (uint256);

    function getPrices() external returns (uint256 price0, uint256 price1);

    function getReserves() external returns (uint112 reserve0, uint112 reserve1);

    function tokensUnlocked(address from, uint256 value)
        external
        returns (bool);

    function accountLiquidityAmounts(
        address account,
        uint256 amount0,
        uint256 amount1
    ) external returns (uint256 liquidity, uint256 shortfall);

    function accountLiquidity(address account)
        external
        returns (uint256 liquidity, uint256 shortfall);

    function canBorrow(
        address account,
        address borrowable,
        uint256 accountBorrows
    ) external returns (bool);

    function seize(
        address liquidator,
        address borrower,
        uint256 repayAmount
    ) external returns (uint256 seizeTokens);

    function flashRedeem(
        address redeemer,
        uint256 redeemAmount,
        bytes calldata data
    ) external;

    /*** Collateral Setter ***/

    event NewSafetyMargin(uint256 newSafetyMarginSqrt);
    event NewLiquidationIncentive(uint256 newLiquidationIncentive);
    event NewLiquidationFee(uint256 newLiquidationFee);
    event NewMTolerance(uint256 mTolerance);

    function M_TOLERANCE_MIN() external pure returns (uint256);
    
    function M_TOLERANCE_MAX() external pure returns (uint256);

    function SAFETY_MARGIN_MIN() external pure returns (uint256);

    function SAFETY_MARGIN_MAX() external pure returns (uint256);

    function LIQUIDATION_INCENTIVE_MIN() external pure returns (uint256);

    function LIQUIDATION_INCENTIVE_MAX() external pure returns (uint256);

    function LIQUIDATION_FEE_MAX() external pure returns (uint256);

    function _initialize(
        string calldata _name,
        string calldata _symbol,
        address _underlying,
        address _borrowable0,
        address _borrowable1
    ) external;

    function _setSafetyMargin(uint256 newSafetyMargin) external;

    function _setLiquidationIncentive(uint256 newLiquidationIncentive) external;

    function _setLiquidationFee(uint256 newLiquidationFee) external;
    
    function _setMTolerance(uint256 newMTolerance) external;

    function isUnderlyingVaultToken() external view returns (bool);
}

File 9 of 16 : ITarotCallee.sol
pragma solidity >=0.5.0;

interface ITarotCallee {
    function tarotBorrow(
        address sender,
        address borrower,
        uint256 borrowAmount,
        bytes calldata data
    ) external;

    function tarotRedeem(
        address sender,
        uint256 redeemAmount,
        bytes calldata data
    ) external;
}

File 10 of 16 : IERC20.sol
pragma solidity >=0.5.0;

interface IERC20 {
    event Approval(address indexed owner, address indexed spender, uint value);
    event Transfer(address indexed from, address indexed to, uint value);

    function name() external view returns (string memory);
    function symbol() external view returns (string memory);
    function decimals() external view returns (uint8);
    function totalSupply() external view returns (uint);
    function balanceOf(address owner) external view returns (uint);
    function allowance(address owner, address spender) external view returns (uint);

    function approve(address spender, uint value) external returns (bool);
    function transfer(address to, uint value) external returns (bool);
    function transferFrom(address from, address to, uint value) external returns (bool);
}

File 11 of 16 : IFactory.sol
pragma solidity >=0.5.0;

interface IFactory {
	event LendingPoolInitialized(address indexed uniswapV2Pair, address indexed token0, address indexed token1,
		address collateral, address borrowable0, address borrowable1, uint lendingPoolId);
	event NewPendingAdmin(address oldPendingAdmin, address newPendingAdmin);
	event NewAdmin(address oldAdmin, address newAdmin);
	event NewReservesPendingAdmin(address oldReservesPendingAdmin, address newReservesPendingAdmin);
	event NewReservesAdmin(address oldReservesAdmin, address newReservesAdmin);
	event NewReservesManager(address oldReservesManager, address newReservesManager);
	
	function admin() external view returns (address);
	function pendingAdmin() external view returns (address);
	function reservesAdmin() external view returns (address);
	function reservesPendingAdmin() external view returns (address);
	function reservesManager() external view returns (address);

	function getLendingPool(address uniswapV2Pair) external view returns (
		bool initialized, 
		uint24 lendingPoolId, 
		address collateral, 
		address borrowable0, 
		address borrowable1
	);
	function allLendingPools(uint) external view returns (address uniswapV2Pair);
	function allLendingPoolsLength() external view returns (uint);
	
	function bDeployer() external view returns (address);
	function cDeployer() external view returns (address);
	function tarotPriceOracle() external view returns (address);

	function createCollateral(address uniswapV2Pair) external returns (address collateral);
	function createBorrowable0(address uniswapV2Pair) external returns (address borrowable0);
	function createBorrowable1(address uniswapV2Pair) external returns (address borrowable1);
	function initializeLendingPool(address uniswapV2Pair) external;

	function _setPendingAdmin(address newPendingAdmin) external;
	function _acceptAdmin() external;
	function _setReservesPendingAdmin(address newPendingAdmin) external;
	function _acceptReservesAdmin() external;
	function _setReservesManager(address newReservesManager) external;
}

File 12 of 16 : IBorrowTracker.sol
pragma solidity >=0.5.0;

interface IBorrowTracker {
	function trackBorrow(address borrower, uint borrowBalance, uint borrowIndex) external;
}

File 13 of 16 : Math.sol
pragma solidity =0.5.16;

// a library for performing various math operations
// forked from: https://github.com/Uniswap/uniswap-v2-core/blob/master/contracts/libraries/Math.sol

library Math {
    function min(uint x, uint y) internal pure returns (uint z) {
        z = x < y ? x : y;
    }

    // babylonian method (https://en.wikipedia.org/wiki/Methods_of_computing_square_roots#Babylonian_method)
    function sqrt(uint y) internal pure returns (uint z) {
        if (y > 3) {
            z = y;
            uint x = y / 2 + 1;
            while (x < z) {
                z = x;
                x = (y / x + x) / 2;
            }
        } else if (y != 0) {
            z = 1;
        }
    }
}

File 14 of 16 : TarotERC20.sol
pragma solidity =0.5.16;

import "./libraries/SafeMath.sol";

// This contract is basically UniswapV2ERC20 with small modifications
// src: https://github.com/Uniswap/uniswap-v2-core/blob/master/contracts/UniswapV2ERC20.sol

contract TarotERC20 {
    using SafeMath for uint256;

    string public name;
    string public symbol;
    uint8 public decimals = 18;
    uint256 public totalSupply;
    mapping(address => uint256) public balanceOf;
    mapping(address => mapping(address => uint256)) public allowance;

    bytes32 public DOMAIN_SEPARATOR;
    mapping(address => uint256) public nonces;

    event Transfer(address indexed from, address indexed to, uint256 value);
    event Approval(
        address indexed owner,
        address indexed spender,
        uint256 value
    );

    constructor() public {}

    function _setName(string memory _name, string memory _symbol) internal {
        name = _name;
        symbol = _symbol;
        uint256 chainId;
        assembly {
            chainId := chainid
        }
        DOMAIN_SEPARATOR = keccak256(
            abi.encode(
                keccak256(
                    "EIP712Domain(string name,string version,uint256 chainId,address verifyingContract)"
                ),
                keccak256(bytes(_name)),
                keccak256(bytes("1")),
                chainId,
                address(this)
            )
        );
    }

    function _mint(address to, uint256 value) internal {
        totalSupply = totalSupply.add(value);
        balanceOf[to] = balanceOf[to].add(value);
        emit Transfer(address(0), to, value);
    }

    function _burn(address from, uint256 value) internal {
        balanceOf[from] = balanceOf[from].sub(value);
        totalSupply = totalSupply.sub(value);
        emit Transfer(from, address(0), value);
    }

    function _approve(
        address owner,
        address spender,
        uint256 value
    ) private {
        allowance[owner][spender] = value;
        emit Approval(owner, spender, value);
    }

    function _transfer(
        address from,
        address to,
        uint256 value
    ) internal {
        balanceOf[from] = balanceOf[from].sub(
            value,
            "Tarot: TRANSFER_TOO_HIGH"
        );
        balanceOf[to] = balanceOf[to].add(value);
        emit Transfer(from, to, value);
    }

    function approve(address spender, uint256 value) external returns (bool) {
        _approve(msg.sender, spender, value);
        return true;
    }

    function transfer(address to, uint256 value) external returns (bool) {
        _transfer(msg.sender, to, value);
        return true;
    }

    function transferFrom(
        address from,
        address to,
        uint256 value
    ) external returns (bool) {
        if (allowance[from][msg.sender] != uint256(-1)) {
            allowance[from][msg.sender] = allowance[from][msg.sender].sub(
                value,
                "Tarot: TRANSFER_NOT_ALLOWED"
            );
        }
        _transfer(from, to, value);
        return true;
    }

    function _checkSignature(
        address owner,
        address spender,
        uint256 value,
        uint256 deadline,
        uint8 v,
        bytes32 r,
        bytes32 s,
        bytes32 typehash
    ) internal {
        require(deadline >= block.timestamp, "Tarot: EXPIRED");
        bytes32 digest =
            keccak256(
                abi.encodePacked(
                    "\x19\x01",
                    DOMAIN_SEPARATOR,
                    keccak256(
                        abi.encode(
                            typehash,
                            owner,
                            spender,
                            value,
                            nonces[owner]++,
                            deadline
                        )
                    )
                )
            );
        address recoveredAddress = ecrecover(digest, v, r, s);
        require(
            recoveredAddress != address(0) && recoveredAddress == owner,
            "Tarot: INVALID_SIGNATURE"
        );
    }

    // keccak256("Permit(address owner,address spender,uint256 value,uint256 nonce,uint256 deadline)");
    bytes32 public constant PERMIT_TYPEHASH =
        0x6e71edae12b1b97f4d1f60370fef10105fa2faae0126114a169c64845d6126c9;

    function permit(
        address owner,
        address spender,
        uint256 value,
        uint256 deadline,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) external {
        _checkSignature(
            owner,
            spender,
            value,
            deadline,
            v,
            r,
            s,
            PERMIT_TYPEHASH
        );
        _approve(owner, spender, value);
    }
}

File 15 of 16 : IPoolToken.sol
pragma solidity >=0.5.0;

interface IPoolToken {
    /*** Tarot ERC20 ***/

    event Transfer(address indexed from, address indexed to, uint256 value);
    event Approval(
        address indexed owner,
        address indexed spender,
        uint256 value
    );

    function name() external pure returns (string memory);

    function symbol() external pure returns (string memory);

    function decimals() external pure returns (uint8);

    function totalSupply() external view returns (uint256);

    function balanceOf(address owner) external view returns (uint256);

    function allowance(address owner, address spender)
        external
        view
        returns (uint256);

    function approve(address spender, uint256 value) external returns (bool);

    function transfer(address to, uint256 value) external returns (bool);

    function transferFrom(
        address from,
        address to,
        uint256 value
    ) external returns (bool);

    function DOMAIN_SEPARATOR() external view returns (bytes32);

    function PERMIT_TYPEHASH() external pure returns (bytes32);

    function nonces(address owner) external view returns (uint256);

    function permit(
        address owner,
        address spender,
        uint256 value,
        uint256 deadline,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) external;

    /*** Pool Token ***/

    event Mint(
        address indexed sender,
        address indexed minter,
        uint256 mintAmount,
        uint256 mintTokens
    );
    event Redeem(
        address indexed sender,
        address indexed redeemer,
        uint256 redeemAmount,
        uint256 redeemTokens
    );
    event Sync(uint256 totalBalance);

    function underlying() external view returns (address);

    function factory() external view returns (address);

    function totalBalance() external view returns (uint256);

    function MINIMUM_LIQUIDITY() external pure returns (uint256);

    function exchangeRate() external returns (uint256);

    function mint(address minter) external returns (uint256 mintTokens);

    function redeem(address redeemer) external returns (uint256 redeemAmount);

    function skim(address to) external;

    function sync() external;

    function _setFactory() external;
}

File 16 of 16 : SafeMath.sol
pragma solidity =0.5.16;

// From https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/contracts/math/Math.sol
// Subject to the MIT license.

/**
 * @dev Wrappers over Solidity's arithmetic operations with added overflow
 * checks.
 *
 * Arithmetic operations in Solidity wrap on overflow. This can easily result
 * in bugs, because programmers usually assume that an overflow raises an
 * error, which is the standard behavior in high level programming languages.
 * `SafeMath` restores this intuition by reverting the transaction when an
 * operation overflows.
 *
 * Using this library instead of the unchecked operations eliminates an entire
 * class of bugs, so it's recommended to use it always.
 */
library SafeMath {
    /**
     * @dev Returns the addition of two unsigned integers, reverting on overflow.
     *
     * Counterpart to Solidity's `+` operator.
     *
     * Requirements:
     * - Addition cannot overflow.
     */
    function add(uint256 a, uint256 b) internal pure returns (uint256) {
        uint256 c = a + b;
        require(c >= a, "SafeMath: addition overflow");

        return c;
    }

    /**
     * @dev Returns the addition of two unsigned integers, reverting with custom message on overflow.
     *
     * Counterpart to Solidity's `+` operator.
     *
     * Requirements:
     * - Addition cannot overflow.
     */
    function add(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
        uint256 c = a + b;
        require(c >= a, errorMessage);

        return c;
    }

    /**
     * @dev Returns the subtraction of two unsigned integers, reverting on underflow (when the result is negative).
     *
     * Counterpart to Solidity's `-` operator.
     *
     * Requirements:
     * - Subtraction cannot underflow.
     */
    function sub(uint256 a, uint256 b) internal pure returns (uint256) {
        return sub(a, b, "SafeMath: subtraction underflow");
    }

    /**
     * @dev Returns the subtraction of two unsigned integers, reverting with custom message on underflow (when the result is negative).
     *
     * Counterpart to Solidity's `-` operator.
     *
     * Requirements:
     * - Subtraction cannot underflow.
     */
    function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
        require(b <= a, errorMessage);
        uint256 c = a - b;

        return c;
    }

    /**
     * @dev Returns the multiplication of two unsigned integers, reverting on overflow.
     *
     * Counterpart to Solidity's `*` operator.
     *
     * Requirements:
     * - Multiplication cannot overflow.
     */
    function mul(uint256 a, uint256 b) internal pure returns (uint256) {
        // Gas optimization: this is cheaper than requiring 'a' not being zero, but the
        // benefit is lost if 'b' is also tested.
        // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522
        if (a == 0) {
            return 0;
        }

        uint256 c = a * b;
        require(c / a == b, "SafeMath: multiplication overflow");

        return c;
    }

    /**
     * @dev Returns the multiplication of two unsigned integers, reverting on overflow.
     *
     * Counterpart to Solidity's `*` operator.
     *
     * Requirements:
     * - Multiplication cannot overflow.
     */
    function mul(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
        // Gas optimization: this is cheaper than requiring 'a' not being zero, but the
        // benefit is lost if 'b' is also tested.
        // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522
        if (a == 0) {
            return 0;
        }

        uint256 c = a * b;
        require(c / a == b, errorMessage);

        return c;
    }

    /**
     * @dev Returns the integer division of two unsigned integers.
     * Reverts on division by zero. The result is rounded towards zero.
     *
     * Counterpart to Solidity's `/` operator. Note: this function uses a
     * `revert` opcode (which leaves remaining gas untouched) while Solidity
     * uses an invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     * - The divisor cannot be zero.
     */
    function div(uint256 a, uint256 b) internal pure returns (uint256) {
        return div(a, b, "SafeMath: division by zero");
    }

    /**
     * @dev Returns the integer division of two unsigned integers.
     * Reverts with custom message on division by zero. The result is rounded towards zero.
     *
     * Counterpart to Solidity's `/` operator. Note: this function uses a
     * `revert` opcode (which leaves remaining gas untouched) while Solidity
     * uses an invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     * - The divisor cannot be zero.
     */
    function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
        // Solidity only automatically asserts when dividing by 0
        require(b > 0, errorMessage);
        uint256 c = a / b;
        // assert(a == b * c + a % b); // There is no case in which this doesn't hold

        return c;
    }

    /**
     * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
     * Reverts when dividing by zero.
     *
     * Counterpart to Solidity's `%` operator. This function uses a `revert`
     * opcode (which leaves remaining gas untouched) while Solidity uses an
     * invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     * - The divisor cannot be zero.
     */
    function mod(uint256 a, uint256 b) internal pure returns (uint256) {
        return mod(a, b, "SafeMath: modulo by zero");
    }

    /**
     * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
     * Reverts with custom message when dividing by zero.
     *
     * Counterpart to Solidity's `%` operator. This function uses a `revert`
     * opcode (which leaves remaining gas untouched) while Solidity uses an
     * invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     * - The divisor cannot be zero.
     */
    function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
        require(b != 0, errorMessage);
        return a % b;
    }
}

Settings
{
  "optimizer": {
    "enabled": true,
    "runs": 200
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "libraries": {}
}

Contract ABI

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