diff --git a/deployments/mainnet/Fed.json b/deployments/mainnet/Fed.json index 1a28d49e1..28292fc59 100644 --- a/deployments/mainnet/Fed.json +++ b/deployments/mainnet/Fed.json @@ -1,5 +1,5 @@ { - "address": "0xe3277f1102C1ca248aD859407Ca0cBF128DB0664", + "address": "0x5Fa92501106d7E4e8b4eF3c4d08112b6f306194C", "abi": [ { "inputs": [ @@ -198,42 +198,42 @@ "type": "function" } ], - "transactionHash": "0xe411c6532350f673cc838911b7fa3af8979435ac683096f675697f98263b2241", + "transactionHash": "0x65037d2192e7f90e9227d06ac8006523c788fe336a000cbd1635ffc9a8d23785", "receipt": { "to": null, - "from": "0x3FcB35a1CbFB6007f9BC638D388958Bc4550cB28", - "contractAddress": "0xe3277f1102C1ca248aD859407Ca0cBF128DB0664", - "transactionIndex": 264, - "gasUsed": "747654", - "logsBloom": "0x00040000000000000000000000000000000000000000000000040000000000000000000000000000000008000000000000000000000000000000000000200000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000080000000000000000000000000000000020010000040000000000000000000000000020000000000000000000080000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010000000000000000000000000000000000000000000000000000000000008", - "blockHash": "0xcbd22454ec329df8a36ced10e52769f819cee9754f2df39df61c942a227ebaf6", - "transactionHash": "0xe411c6532350f673cc838911b7fa3af8979435ac683096f675697f98263b2241", + "from": "0xfEEB7b1bc8229617e4fd1C431AB2E26aA0e5877D", + "contractAddress": "0x5Fa92501106d7E4e8b4eF3c4d08112b6f306194C", + "transactionIndex": 347, + "gasUsed": "783755", + "logsBloom": "0x00000000000000200000000000000000000000000000000000040000000400000000000000000000000008000000000000000000000000000000000000300000000000000000080000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000080000000000000000000000000000000000000000000000000000000000000000000820000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010000000000000010000000000000000000000000000000000000000000000000000000000000", + "blockHash": "0x3fa9372d5fa716d6c3f62de50d0c4839ebfa2176ee2e328d41099d21f050b1a3", + "transactionHash": "0x65037d2192e7f90e9227d06ac8006523c788fe336a000cbd1635ffc9a8d23785", "logs": [ { - "transactionIndex": 264, - "blockNumber": 13174020, - "transactionHash": "0xe411c6532350f673cc838911b7fa3af8979435ac683096f675697f98263b2241", + "transactionIndex": 347, + "blockNumber": 14411854, + "transactionHash": "0x65037d2192e7f90e9227d06ac8006523c788fe336a000cbd1635ffc9a8d23785", "address": "0x865377367054516e17014CcdED1e7d814EDC9ce4", "topics": [ "0x8c5be1e5ebec7d5bd14f71427d1e84f3dd0314c0f7b2291e5b200ac8c7c3b925", - "0x000000000000000000000000e3277f1102c1ca248ad859407ca0cbf128db0664", - "0x000000000000000000000000f65155c9595f99bfc193caff0aab6e2a98cf68ae" + "0x0000000000000000000000005fa92501106d7e4e8b4ef3c4d08112b6f306194c", + "0x000000000000000000000000c1fb01415f08fbd71623aded6ac8ec74f974fdc1" ], "data": "0xffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff", - "logIndex": 277, - "blockHash": "0xcbd22454ec329df8a36ced10e52769f819cee9754f2df39df61c942a227ebaf6" + "logIndex": 465, + "blockHash": "0x3fa9372d5fa716d6c3f62de50d0c4839ebfa2176ee2e328d41099d21f050b1a3" } ], - "blockNumber": 13174020, - "cumulativeGasUsed": "16215193", + "blockNumber": 14411854, + "cumulativeGasUsed": "22781658", "status": 1, "byzantium": true }, "args": [ - "0xf65155C9595F99BFC193CaFF0AAb6e2a98cf68aE", - "0x3FcB35a1CbFB6007f9BC638D388958Bc4550cB28" + "0xC1Fb01415f08Fbd71623aded6Ac8ec74F974Fdc1", + "0xfEEB7b1bc8229617e4fd1C431AB2E26aA0e5877D" ], - "solcInputHash": "adac83fc7f7122dcb838f032a1dcc0fa", + "solcInputHash": "f91912da5fadc7dce3430f4d2e6691b6", "metadata": "{\"compiler\":{\"version\":\"0.5.16+commit.9c3226ce\"},\"language\":\"Solidity\",\"output\":{\"abi\":[{\"inputs\":[{\"internalType\":\"contract CErc20\",\"name\":\"ctoken_\",\"type\":\"address\"},{\"internalType\":\"address\",\"name\":\"gov_\",\"type\":\"address\"}],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"constructor\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"amount\",\"type\":\"uint256\"}],\"name\":\"Contraction\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"amount\",\"type\":\"uint256\"}],\"name\":\"Expansion\",\"type\":\"event\"},{\"constant\":true,\"inputs\":[],\"name\":\"chair\",\"outputs\":[{\"internalType\":\"address\",\"name\":\"\",\"type\":\"address\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"internalType\":\"address\",\"name\":\"newChair_\",\"type\":\"address\"}],\"name\":\"changeChair\",\"outputs\":[],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"internalType\":\"address\",\"name\":\"newGov_\",\"type\":\"address\"}],\"name\":\"changeGov\",\"outputs\":[],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"internalType\":\"uint256\",\"name\":\"amount\",\"type\":\"uint256\"}],\"name\":\"contraction\",\"outputs\":[],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[],\"name\":\"ctoken\",\"outputs\":[{\"internalType\":\"contract CErc20\",\"name\":\"\",\"type\":\"address\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"internalType\":\"uint256\",\"name\":\"amount\",\"type\":\"uint256\"}],\"name\":\"expansion\",\"outputs\":[],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[],\"name\":\"gov\",\"outputs\":[{\"internalType\":\"address\",\"name\":\"\",\"type\":\"address\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[],\"name\":\"resign\",\"outputs\":[],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[],\"name\":\"supply\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[],\"name\":\"takeProfit\",\"outputs\":[],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[],\"name\":\"underlying\",\"outputs\":[{\"internalType\":\"contract ERC20\",\"name\":\"\",\"type\":\"address\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"}],\"devdoc\":{\"methods\":{}},\"userdoc\":{\"methods\":{}}},\"settings\":{\"compilationTarget\":{\"contracts/Fed.sol\":\"Fed\"},\"evmVersion\":\"istanbul\",\"libraries\":{},\"metadata\":{\"useLiteralContent\":true},\"optimizer\":{\"enabled\":true,\"runs\":200},\"remappings\":[]},\"sources\":{\"contracts/CErc20.sol\":{\"content\":\"pragma solidity ^0.5.16;\\n\\nimport \\\"./CToken.sol\\\";\\n\\n/**\\n * @title Compound's CErc20 Contract\\n * @notice CTokens which wrap an EIP-20 underlying\\n * @author Compound\\n */\\ncontract CErc20 is CToken, CErc20Interface {\\n /**\\n * @notice Initialize the new money market\\n * @param underlying_ The address of the underlying asset\\n * @param comptroller_ The address of the Comptroller\\n * @param interestRateModel_ The address of the interest rate model\\n * @param initialExchangeRateMantissa_ The initial exchange rate, scaled by 1e18\\n * @param name_ ERC-20 name of this token\\n * @param symbol_ ERC-20 symbol of this token\\n * @param decimals_ ERC-20 decimal precision of this token\\n */\\n function initialize(address underlying_,\\n ComptrollerInterface comptroller_,\\n InterestRateModel interestRateModel_,\\n uint initialExchangeRateMantissa_,\\n string memory name_,\\n string memory symbol_,\\n uint8 decimals_) public {\\n // CToken initialize does the bulk of the work\\n super.initialize(comptroller_, interestRateModel_, initialExchangeRateMantissa_, name_, symbol_, decimals_);\\n\\n // Set underlying and sanity check it\\n underlying = underlying_;\\n EIP20Interface(underlying).totalSupply();\\n }\\n\\n /*** User Interface ***/\\n\\n /**\\n * @notice Sender supplies assets into the market and receives cTokens in exchange\\n * @dev Accrues interest whether or not the operation succeeds, unless reverted\\n * @param mintAmount The amount of the underlying asset to supply\\n * @return uint 0=success, otherwise a failure (see ErrorReporter.sol for details)\\n */\\n function mint(uint mintAmount) external returns (uint) {\\n (uint err,) = mintInternal(mintAmount);\\n return err;\\n }\\n\\n /**\\n * @notice Sender redeems cTokens in exchange for the underlying asset\\n * @dev Accrues interest whether or not the operation succeeds, unless reverted\\n * @param redeemTokens The number of cTokens to redeem into underlying\\n * @return uint 0=success, otherwise a failure (see ErrorReporter.sol for details)\\n */\\n function redeem(uint redeemTokens) external returns (uint) {\\n return redeemInternal(redeemTokens);\\n }\\n\\n /**\\n * @notice Sender redeems cTokens in exchange for a specified amount of underlying asset\\n * @dev Accrues interest whether or not the operation succeeds, unless reverted\\n * @param redeemAmount The amount of underlying to redeem\\n * @return uint 0=success, otherwise a failure (see ErrorReporter.sol for details)\\n */\\n function redeemUnderlying(uint redeemAmount) external returns (uint) {\\n return redeemUnderlyingInternal(redeemAmount);\\n }\\n\\n /**\\n * @notice Sender borrows assets from the protocol to their own address\\n * @param borrowAmount The amount of the underlying asset to borrow\\n * @return uint 0=success, otherwise a failure (see ErrorReporter.sol for details)\\n */\\n function borrow(uint borrowAmount) external returns (uint) {\\n return borrowInternal(borrowAmount);\\n }\\n\\n /**\\n * @notice Sender repays their own borrow\\n * @param repayAmount The amount to repay\\n * @return uint 0=success, otherwise a failure (see ErrorReporter.sol for details)\\n */\\n function repayBorrow(uint repayAmount) external returns (uint) {\\n (uint err,) = repayBorrowInternal(repayAmount);\\n return err;\\n }\\n\\n /**\\n * @notice Sender repays a borrow belonging to borrower\\n * @param borrower the account with the debt being payed off\\n * @param repayAmount The amount to repay\\n * @return uint 0=success, otherwise a failure (see ErrorReporter.sol for details)\\n */\\n function repayBorrowBehalf(address borrower, uint repayAmount) external returns (uint) {\\n (uint err,) = repayBorrowBehalfInternal(borrower, repayAmount);\\n return err;\\n }\\n\\n /**\\n * @notice The sender liquidates the borrowers collateral.\\n * The collateral seized is transferred to the liquidator.\\n * @param borrower The borrower of this cToken to be liquidated\\n * @param repayAmount The amount of the underlying borrowed asset to repay\\n * @param cTokenCollateral The market in which to seize collateral from the borrower\\n * @return uint 0=success, otherwise a failure (see ErrorReporter.sol for details)\\n */\\n function liquidateBorrow(address borrower, uint repayAmount, CTokenInterface cTokenCollateral) external returns (uint) {\\n (uint err,) = liquidateBorrowInternal(borrower, repayAmount, cTokenCollateral);\\n return err;\\n }\\n\\n /**\\n * @notice The sender adds to reserves.\\n * @param addAmount The amount fo underlying token to add as reserves\\n * @return uint 0=success, otherwise a failure (see ErrorReporter.sol for details)\\n */\\n function _addReserves(uint addAmount) external returns (uint) {\\n return _addReservesInternal(addAmount);\\n }\\n\\n /*** Safe Token ***/\\n\\n /**\\n * @notice Gets balance of this contract in terms of the underlying\\n * @dev This excludes the value of the current message, if any\\n * @return The quantity of underlying tokens owned by this contract\\n */\\n function getCashPrior() internal view returns (uint) {\\n EIP20Interface token = EIP20Interface(underlying);\\n return token.balanceOf(address(this));\\n }\\n\\n /**\\n * @dev Similar to EIP20 transfer, except it handles a False result from `transferFrom` and reverts in that case.\\n * This will revert due to insufficient balance or insufficient allowance.\\n * This function returns the actual amount received,\\n * which may be less than `amount` if there is a fee attached to the transfer.\\n *\\n * Note: This wrapper safely handles non-standard ERC-20 tokens that do not return a value.\\n * See here: https://medium.com/coinmonks/missing-return-value-bug-at-least-130-tokens-affected-d67bf08521ca\\n */\\n function doTransferIn(address from, uint amount) internal returns (uint) {\\n EIP20NonStandardInterface token = EIP20NonStandardInterface(underlying);\\n uint balanceBefore = EIP20Interface(underlying).balanceOf(address(this));\\n token.transferFrom(from, address(this), amount);\\n\\n bool success;\\n assembly {\\n switch returndatasize()\\n case 0 { // This is a non-standard ERC-20\\n success := not(0) // set success to true\\n }\\n case 32 { // This is a compliant ERC-20\\n returndatacopy(0, 0, 32)\\n success := mload(0) // Set `success = returndata` of external call\\n }\\n default { // This is an excessively non-compliant ERC-20, revert.\\n revert(0, 0)\\n }\\n }\\n require(success, \\\"TOKEN_TRANSFER_IN_FAILED\\\");\\n\\n // Calculate the amount that was *actually* transferred\\n uint balanceAfter = EIP20Interface(underlying).balanceOf(address(this));\\n require(balanceAfter >= balanceBefore, \\\"TOKEN_TRANSFER_IN_OVERFLOW\\\");\\n return balanceAfter - balanceBefore; // underflow already checked above, just subtract\\n }\\n\\n /**\\n * @dev Similar to EIP20 transfer, except it handles a False success from `transfer` and returns an explanatory\\n * error code rather than reverting. If caller has not called checked protocol's balance, this may revert due to\\n * insufficient cash held in this contract. If caller has checked protocol's balance prior to this call, and verified\\n * it is >= amount, this should not revert in normal conditions.\\n *\\n * Note: This wrapper safely handles non-standard ERC-20 tokens that do not return a value.\\n * See here: https://medium.com/coinmonks/missing-return-value-bug-at-least-130-tokens-affected-d67bf08521ca\\n */\\n function doTransferOut(address payable to, uint amount) internal {\\n EIP20NonStandardInterface token = EIP20NonStandardInterface(underlying);\\n token.transfer(to, amount);\\n\\n bool success;\\n assembly {\\n switch returndatasize()\\n case 0 { // This is a non-standard ERC-20\\n success := not(0) // set success to true\\n }\\n case 32 { // This is a complaint ERC-20\\n returndatacopy(0, 0, 32)\\n success := mload(0) // Set `success = returndata` of external call\\n }\\n default { // This is an excessively non-compliant ERC-20, revert.\\n revert(0, 0)\\n }\\n }\\n require(success, \\\"TOKEN_TRANSFER_OUT_FAILED\\\");\\n }\\n}\\n\",\"keccak256\":\"0xd803eb22632692336bdfd6be55e24d1d06867e89bfbd9da33a4d0618b466c5d1\"},\"contracts/CToken.sol\":{\"content\":\"pragma solidity ^0.5.16;\\n\\nimport \\\"./ComptrollerInterface.sol\\\";\\nimport \\\"./CTokenInterfaces.sol\\\";\\nimport \\\"./ErrorReporter.sol\\\";\\nimport \\\"./Exponential.sol\\\";\\nimport \\\"./EIP20Interface.sol\\\";\\nimport \\\"./EIP20NonStandardInterface.sol\\\";\\nimport \\\"./InterestRateModel.sol\\\";\\n\\n/**\\n * @title Compound's CToken Contract\\n * @notice Abstract base for CTokens\\n * @author Compound\\n */\\ncontract CToken is CTokenInterface, Exponential, TokenErrorReporter {\\n /**\\n * @notice Initialize the money market\\n * @param comptroller_ The address of the Comptroller\\n * @param interestRateModel_ The address of the interest rate model\\n * @param initialExchangeRateMantissa_ The initial exchange rate, scaled by 1e18\\n * @param name_ EIP-20 name of this token\\n * @param symbol_ EIP-20 symbol of this token\\n * @param decimals_ EIP-20 decimal precision of this token\\n */\\n function initialize(ComptrollerInterface comptroller_,\\n InterestRateModel interestRateModel_,\\n uint initialExchangeRateMantissa_,\\n string memory name_,\\n string memory symbol_,\\n uint8 decimals_) public {\\n require(msg.sender == admin, \\\"only admin may initialize the market\\\");\\n require(accrualBlockNumber == 0 && borrowIndex == 0, \\\"market may only be initialized once\\\");\\n\\n // Set initial exchange rate\\n initialExchangeRateMantissa = initialExchangeRateMantissa_;\\n require(initialExchangeRateMantissa > 0, \\\"initial exchange rate must be greater than zero.\\\");\\n\\n // Set the comptroller\\n uint err = _setComptroller(comptroller_);\\n require(err == uint(Error.NO_ERROR), \\\"setting comptroller failed\\\");\\n\\n // Initialize block number and borrow index (block number mocks depend on comptroller being set)\\n accrualBlockNumber = getBlockNumber();\\n borrowIndex = mantissaOne;\\n\\n // Set the interest rate model (depends on block number / borrow index)\\n err = _setInterestRateModelFresh(interestRateModel_);\\n require(err == uint(Error.NO_ERROR), \\\"setting interest rate model failed\\\");\\n\\n name = name_;\\n symbol = symbol_;\\n decimals = decimals_;\\n\\n // The counter starts true to prevent changing it from zero to non-zero (i.e. smaller cost/refund)\\n _notEntered = true;\\n }\\n\\n /**\\n * @notice Transfer `tokens` tokens from `src` to `dst` by `spender`\\n * @dev Called by both `transfer` and `transferFrom` internally\\n * @param spender The address of the account performing the transfer\\n * @param src The address of the source account\\n * @param dst The address of the destination account\\n * @param tokens The number of tokens to transfer\\n * @return Whether or not the transfer succeeded\\n */\\n function transferTokens(address spender, address src, address dst, uint tokens) internal returns (uint) {\\n /* Fail if transfer not allowed */\\n uint allowed = comptroller.transferAllowed(address(this), src, dst, tokens);\\n if (allowed != 0) {\\n return failOpaque(Error.COMPTROLLER_REJECTION, FailureInfo.TRANSFER_COMPTROLLER_REJECTION, allowed);\\n }\\n\\n /* Do not allow self-transfers */\\n if (src == dst) {\\n return fail(Error.BAD_INPUT, FailureInfo.TRANSFER_NOT_ALLOWED);\\n }\\n\\n /* Get the allowance, infinite for the account owner */\\n uint startingAllowance = 0;\\n if (spender == src) {\\n startingAllowance = uint(-1);\\n } else {\\n startingAllowance = transferAllowances[src][spender];\\n }\\n\\n /* Do the calculations, checking for {under,over}flow */\\n MathError mathErr;\\n uint allowanceNew;\\n uint srcTokensNew;\\n uint dstTokensNew;\\n\\n (mathErr, allowanceNew) = subUInt(startingAllowance, tokens);\\n if (mathErr != MathError.NO_ERROR) {\\n return fail(Error.MATH_ERROR, FailureInfo.TRANSFER_NOT_ALLOWED);\\n }\\n\\n (mathErr, srcTokensNew) = subUInt(accountTokens[src], tokens);\\n if (mathErr != MathError.NO_ERROR) {\\n return fail(Error.MATH_ERROR, FailureInfo.TRANSFER_NOT_ENOUGH);\\n }\\n\\n (mathErr, dstTokensNew) = addUInt(accountTokens[dst], tokens);\\n if (mathErr != MathError.NO_ERROR) {\\n return fail(Error.MATH_ERROR, FailureInfo.TRANSFER_TOO_MUCH);\\n }\\n\\n /////////////////////////\\n // EFFECTS & INTERACTIONS\\n // (No safe failures beyond this point)\\n\\n accountTokens[src] = srcTokensNew;\\n accountTokens[dst] = dstTokensNew;\\n\\n /* Eat some of the allowance (if necessary) */\\n if (startingAllowance != uint(-1)) {\\n transferAllowances[src][spender] = allowanceNew;\\n }\\n\\n /* We emit a Transfer event */\\n emit Transfer(src, dst, tokens);\\n\\n comptroller.transferVerify(address(this), src, dst, tokens);\\n\\n return uint(Error.NO_ERROR);\\n }\\n\\n /**\\n * @notice Transfer `amount` tokens from `msg.sender` to `dst`\\n * @param dst The address of the destination account\\n * @param amount The number of tokens to transfer\\n * @return Whether or not the transfer succeeded\\n */\\n function transfer(address dst, uint256 amount) external nonReentrant returns (bool) {\\n return transferTokens(msg.sender, msg.sender, dst, amount) == uint(Error.NO_ERROR);\\n }\\n\\n /**\\n * @notice Transfer `amount` tokens from `src` to `dst`\\n * @param src The address of the source account\\n * @param dst The address of the destination account\\n * @param amount The number of tokens to transfer\\n * @return Whether or not the transfer succeeded\\n */\\n function transferFrom(address src, address dst, uint256 amount) external nonReentrant returns (bool) {\\n return transferTokens(msg.sender, src, dst, amount) == uint(Error.NO_ERROR);\\n }\\n\\n /**\\n * @notice Approve `spender` to transfer up to `amount` from `src`\\n * @dev This will overwrite the approval amount for `spender`\\n * and is subject to issues noted [here](https://eips.ethereum.org/EIPS/eip-20#approve)\\n * @param spender The address of the account which may transfer tokens\\n * @param amount The number of tokens that are approved (-1 means infinite)\\n * @return Whether or not the approval succeeded\\n */\\n function approve(address spender, uint256 amount) external returns (bool) {\\n address src = msg.sender;\\n transferAllowances[src][spender] = amount;\\n emit Approval(src, spender, amount);\\n return true;\\n }\\n\\n /**\\n * @notice Get the current allowance from `owner` for `spender`\\n * @param owner The address of the account which owns the tokens to be spent\\n * @param spender The address of the account which may transfer tokens\\n * @return The number of tokens allowed to be spent (-1 means infinite)\\n */\\n function allowance(address owner, address spender) external view returns (uint256) {\\n return transferAllowances[owner][spender];\\n }\\n\\n /**\\n * @notice Get the token balance of the `owner`\\n * @param owner The address of the account to query\\n * @return The number of tokens owned by `owner`\\n */\\n function balanceOf(address owner) external view returns (uint256) {\\n return accountTokens[owner];\\n }\\n\\n /**\\n * @notice Get the underlying balance of the `owner`\\n * @dev This also accrues interest in a transaction\\n * @param owner The address of the account to query\\n * @return The amount of underlying owned by `owner`\\n */\\n function balanceOfUnderlying(address owner) external returns (uint) {\\n Exp memory exchangeRate = Exp({mantissa: exchangeRateCurrent()});\\n (MathError mErr, uint balance) = mulScalarTruncate(exchangeRate, accountTokens[owner]);\\n require(mErr == MathError.NO_ERROR, \\\"balance could not be calculated\\\");\\n return balance;\\n }\\n\\n /**\\n * @notice Get a snapshot of the account's balances, and the cached exchange rate\\n * @dev This is used by comptroller to more efficiently perform liquidity checks.\\n * @param account Address of the account to snapshot\\n * @return (possible error, token balance, borrow balance, exchange rate mantissa)\\n */\\n function getAccountSnapshot(address account) external view returns (uint, uint, uint, uint) {\\n uint cTokenBalance = accountTokens[account];\\n uint borrowBalance;\\n uint exchangeRateMantissa;\\n\\n MathError mErr;\\n\\n (mErr, borrowBalance) = borrowBalanceStoredInternal(account);\\n if (mErr != MathError.NO_ERROR) {\\n return (uint(Error.MATH_ERROR), 0, 0, 0);\\n }\\n\\n (mErr, exchangeRateMantissa) = exchangeRateStoredInternal();\\n if (mErr != MathError.NO_ERROR) {\\n return (uint(Error.MATH_ERROR), 0, 0, 0);\\n }\\n\\n return (uint(Error.NO_ERROR), cTokenBalance, borrowBalance, exchangeRateMantissa);\\n }\\n\\n /**\\n * @dev Function to simply retrieve block number\\n * This exists mainly for inheriting test contracts to stub this result.\\n */\\n function getBlockNumber() internal view returns (uint) {\\n return block.number;\\n }\\n\\n /**\\n * @notice Returns the current per-block borrow interest rate for this cToken\\n * @return The borrow interest rate per block, scaled by 1e18\\n */\\n function borrowRatePerBlock() external view returns (uint) {\\n return interestRateModel.getBorrowRate(getCashPrior(), totalBorrows, totalReserves);\\n }\\n\\n /**\\n * @notice Returns the current per-block supply interest rate for this cToken\\n * @return The supply interest rate per block, scaled by 1e18\\n */\\n function supplyRatePerBlock() external view returns (uint) {\\n return interestRateModel.getSupplyRate(getCashPrior(), totalBorrows, totalReserves, reserveFactorMantissa);\\n }\\n\\n /**\\n * @notice Returns the current total borrows plus accrued interest\\n * @return The total borrows with interest\\n */\\n function totalBorrowsCurrent() external nonReentrant returns (uint) {\\n require(accrueInterest() == uint(Error.NO_ERROR), \\\"accrue interest failed\\\");\\n return totalBorrows;\\n }\\n\\n /**\\n * @notice Accrue interest to updated borrowIndex and then calculate account's borrow balance using the updated borrowIndex\\n * @param account The address whose balance should be calculated after updating borrowIndex\\n * @return The calculated balance\\n */\\n function borrowBalanceCurrent(address account) external nonReentrant returns (uint) {\\n require(accrueInterest() == uint(Error.NO_ERROR), \\\"accrue interest failed\\\");\\n return borrowBalanceStored(account);\\n }\\n\\n /**\\n * @notice Return the borrow balance of account based on stored data\\n * @param account The address whose balance should be calculated\\n * @return The calculated balance\\n */\\n function borrowBalanceStored(address account) public view returns (uint) {\\n (MathError err, uint result) = borrowBalanceStoredInternal(account);\\n require(err == MathError.NO_ERROR, \\\"borrowBalanceStored: borrowBalanceStoredInternal failed\\\");\\n return result;\\n }\\n\\n /**\\n * @notice Return the borrow balance of account based on stored data\\n * @param account The address whose balance should be calculated\\n * @return (error code, the calculated balance or 0 if error code is non-zero)\\n */\\n function borrowBalanceStoredInternal(address account) internal view returns (MathError, uint) {\\n /* Note: we do not assert that the market is up to date */\\n MathError mathErr;\\n uint principalTimesIndex;\\n uint result;\\n\\n /* Get borrowBalance and borrowIndex */\\n BorrowSnapshot storage borrowSnapshot = accountBorrows[account];\\n\\n /* If borrowBalance = 0 then borrowIndex is likely also 0.\\n * Rather than failing the calculation with a division by 0, we immediately return 0 in this case.\\n */\\n if (borrowSnapshot.principal == 0) {\\n return (MathError.NO_ERROR, 0);\\n }\\n\\n /* Calculate new borrow balance using the interest index:\\n * recentBorrowBalance = borrower.borrowBalance * market.borrowIndex / borrower.borrowIndex\\n */\\n (mathErr, principalTimesIndex) = mulUInt(borrowSnapshot.principal, borrowIndex);\\n if (mathErr != MathError.NO_ERROR) {\\n return (mathErr, 0);\\n }\\n\\n (mathErr, result) = divUInt(principalTimesIndex, borrowSnapshot.interestIndex);\\n if (mathErr != MathError.NO_ERROR) {\\n return (mathErr, 0);\\n }\\n\\n return (MathError.NO_ERROR, result);\\n }\\n\\n /**\\n * @notice Accrue interest then return the up-to-date exchange rate\\n * @return Calculated exchange rate scaled by 1e18\\n */\\n function exchangeRateCurrent() public nonReentrant returns (uint) {\\n require(accrueInterest() == uint(Error.NO_ERROR), \\\"accrue interest failed\\\");\\n return exchangeRateStored();\\n }\\n\\n /**\\n * @notice Calculates the exchange rate from the underlying to the CToken\\n * @dev This function does not accrue interest before calculating the exchange rate\\n * @return Calculated exchange rate scaled by 1e18\\n */\\n function exchangeRateStored() public view returns (uint) {\\n (MathError err, uint result) = exchangeRateStoredInternal();\\n require(err == MathError.NO_ERROR, \\\"exchangeRateStored: exchangeRateStoredInternal failed\\\");\\n return result;\\n }\\n\\n /**\\n * @notice Calculates the exchange rate from the underlying to the CToken\\n * @dev This function does not accrue interest before calculating the exchange rate\\n * @return (error code, calculated exchange rate scaled by 1e18)\\n */\\n function exchangeRateStoredInternal() internal view returns (MathError, uint) {\\n uint _totalSupply = totalSupply;\\n if (_totalSupply == 0) {\\n /*\\n * If there are no tokens minted:\\n * exchangeRate = initialExchangeRate\\n */\\n return (MathError.NO_ERROR, initialExchangeRateMantissa);\\n } else {\\n /*\\n * Otherwise:\\n * exchangeRate = (totalCash + totalBorrows - totalReserves) / totalSupply\\n */\\n uint totalCash = getCashPrior();\\n uint cashPlusBorrowsMinusReserves;\\n Exp memory exchangeRate;\\n MathError mathErr;\\n\\n (mathErr, cashPlusBorrowsMinusReserves) = addThenSubUInt(totalCash, totalBorrows, totalReserves);\\n if (mathErr != MathError.NO_ERROR) {\\n return (mathErr, 0);\\n }\\n\\n (mathErr, exchangeRate) = getExp(cashPlusBorrowsMinusReserves, _totalSupply);\\n if (mathErr != MathError.NO_ERROR) {\\n return (mathErr, 0);\\n }\\n\\n return (MathError.NO_ERROR, exchangeRate.mantissa);\\n }\\n }\\n\\n /**\\n * @notice Get cash balance of this cToken in the underlying asset\\n * @return The quantity of underlying asset owned by this contract\\n */\\n function getCash() external view returns (uint) {\\n return getCashPrior();\\n }\\n\\n /**\\n * @notice Applies accrued interest to total borrows and reserves\\n * @dev This calculates interest accrued from the last checkpointed block\\n * up to the current block and writes new checkpoint to storage.\\n */\\n function accrueInterest() public returns (uint) {\\n /* Remember the initial block number */\\n uint currentBlockNumber = getBlockNumber();\\n uint accrualBlockNumberPrior = accrualBlockNumber;\\n\\n /* Short-circuit accumulating 0 interest */\\n if (accrualBlockNumberPrior == currentBlockNumber) {\\n return uint(Error.NO_ERROR);\\n }\\n\\n /* Read the previous values out of storage */\\n uint cashPrior = getCashPrior();\\n uint borrowsPrior = totalBorrows;\\n uint reservesPrior = totalReserves;\\n uint borrowIndexPrior = borrowIndex;\\n\\n /* Calculate the current borrow interest rate */\\n uint borrowRateMantissa = interestRateModel.getBorrowRate(cashPrior, borrowsPrior, reservesPrior);\\n require(borrowRateMantissa <= borrowRateMaxMantissa, \\\"borrow rate is absurdly high\\\");\\n\\n /* Calculate the number of blocks elapsed since the last accrual */\\n (MathError mathErr, uint blockDelta) = subUInt(currentBlockNumber, accrualBlockNumberPrior);\\n require(mathErr == MathError.NO_ERROR, \\\"could not calculate block delta\\\");\\n\\n /*\\n * Calculate the interest accumulated into borrows and reserves and the new index:\\n * simpleInterestFactor = borrowRate * blockDelta\\n * interestAccumulated = simpleInterestFactor * totalBorrows\\n * totalBorrowsNew = interestAccumulated + totalBorrows\\n * totalReservesNew = interestAccumulated * reserveFactor + totalReserves\\n * borrowIndexNew = simpleInterestFactor * borrowIndex + borrowIndex\\n */\\n\\n Exp memory simpleInterestFactor;\\n uint interestAccumulated;\\n uint totalBorrowsNew;\\n uint totalReservesNew;\\n uint borrowIndexNew;\\n\\n (mathErr, simpleInterestFactor) = mulScalar(Exp({mantissa: borrowRateMantissa}), blockDelta);\\n if (mathErr != MathError.NO_ERROR) {\\n return failOpaque(Error.MATH_ERROR, FailureInfo.ACCRUE_INTEREST_SIMPLE_INTEREST_FACTOR_CALCULATION_FAILED, uint(mathErr));\\n }\\n\\n (mathErr, interestAccumulated) = mulScalarTruncate(simpleInterestFactor, borrowsPrior);\\n if (mathErr != MathError.NO_ERROR) {\\n return failOpaque(Error.MATH_ERROR, FailureInfo.ACCRUE_INTEREST_ACCUMULATED_INTEREST_CALCULATION_FAILED, uint(mathErr));\\n }\\n\\n (mathErr, totalBorrowsNew) = addUInt(interestAccumulated, borrowsPrior);\\n if (mathErr != MathError.NO_ERROR) {\\n return failOpaque(Error.MATH_ERROR, FailureInfo.ACCRUE_INTEREST_NEW_TOTAL_BORROWS_CALCULATION_FAILED, uint(mathErr));\\n }\\n\\n (mathErr, totalReservesNew) = mulScalarTruncateAddUInt(Exp({mantissa: reserveFactorMantissa}), interestAccumulated, reservesPrior);\\n if (mathErr != MathError.NO_ERROR) {\\n return failOpaque(Error.MATH_ERROR, FailureInfo.ACCRUE_INTEREST_NEW_TOTAL_RESERVES_CALCULATION_FAILED, uint(mathErr));\\n }\\n\\n (mathErr, borrowIndexNew) = mulScalarTruncateAddUInt(simpleInterestFactor, borrowIndexPrior, borrowIndexPrior);\\n if (mathErr != MathError.NO_ERROR) {\\n return failOpaque(Error.MATH_ERROR, FailureInfo.ACCRUE_INTEREST_NEW_BORROW_INDEX_CALCULATION_FAILED, uint(mathErr));\\n }\\n\\n /////////////////////////\\n // EFFECTS & INTERACTIONS\\n // (No safe failures beyond this point)\\n\\n /* We write the previously calculated values into storage */\\n accrualBlockNumber = currentBlockNumber;\\n borrowIndex = borrowIndexNew;\\n totalBorrows = totalBorrowsNew;\\n totalReserves = totalReservesNew;\\n\\n /* We emit an AccrueInterest event */\\n emit AccrueInterest(cashPrior, interestAccumulated, borrowIndexNew, totalBorrowsNew);\\n\\n return uint(Error.NO_ERROR);\\n }\\n\\n /**\\n * @notice Sender supplies assets into the market and receives cTokens in exchange\\n * @dev Accrues interest whether or not the operation succeeds, unless reverted\\n * @param mintAmount The amount of the underlying asset to supply\\n * @return (uint, uint) An error code (0=success, otherwise a failure, see ErrorReporter.sol), and the actual mint amount.\\n */\\n function mintInternal(uint mintAmount) internal nonReentrant returns (uint, uint) {\\n uint error = accrueInterest();\\n if (error != uint(Error.NO_ERROR)) {\\n // accrueInterest emits logs on errors, but we still want to log the fact that an attempted borrow failed\\n return (fail(Error(error), FailureInfo.MINT_ACCRUE_INTEREST_FAILED), 0);\\n }\\n // mintFresh emits the actual Mint event if successful and logs on errors, so we don't need to\\n return mintFresh(msg.sender, mintAmount);\\n }\\n\\n struct MintLocalVars {\\n Error err;\\n MathError mathErr;\\n uint exchangeRateMantissa;\\n uint mintTokens;\\n uint totalSupplyNew;\\n uint accountTokensNew;\\n uint actualMintAmount;\\n }\\n\\n /**\\n * @notice User supplies assets into the market and receives cTokens in exchange\\n * @dev Assumes interest has already been accrued up to the current block\\n * @param minter The address of the account which is supplying the assets\\n * @param mintAmount The amount of the underlying asset to supply\\n * @return (uint, uint) An error code (0=success, otherwise a failure, see ErrorReporter.sol), and the actual mint amount.\\n */\\n function mintFresh(address minter, uint mintAmount) internal returns (uint, uint) {\\n /* Fail if mint not allowed */\\n uint allowed = comptroller.mintAllowed(address(this), minter, mintAmount);\\n if (allowed != 0) {\\n return (failOpaque(Error.COMPTROLLER_REJECTION, FailureInfo.MINT_COMPTROLLER_REJECTION, allowed), 0);\\n }\\n\\n /* Verify market's block number equals current block number */\\n if (accrualBlockNumber != getBlockNumber()) {\\n return (fail(Error.MARKET_NOT_FRESH, FailureInfo.MINT_FRESHNESS_CHECK), 0);\\n }\\n\\n MintLocalVars memory vars;\\n\\n (vars.mathErr, vars.exchangeRateMantissa) = exchangeRateStoredInternal();\\n if (vars.mathErr != MathError.NO_ERROR) {\\n return (failOpaque(Error.MATH_ERROR, FailureInfo.MINT_EXCHANGE_RATE_READ_FAILED, uint(vars.mathErr)), 0);\\n }\\n\\n /////////////////////////\\n // EFFECTS & INTERACTIONS\\n // (No safe failures beyond this point)\\n\\n /*\\n * We call `doTransferIn` for the minter and the mintAmount.\\n * Note: The cToken must handle variations between ERC-20 and ETH underlying.\\n * `doTransferIn` reverts if anything goes wrong, since we can't be sure if\\n * side-effects occurred. The function returns the amount actually transferred,\\n * in case of a fee. On success, the cToken holds an additional `actualMintAmount`\\n * of cash.\\n */\\n vars.actualMintAmount = doTransferIn(minter, mintAmount);\\n\\n /*\\n * We get the current exchange rate and calculate the number of cTokens to be minted:\\n * mintTokens = actualMintAmount / exchangeRate\\n */\\n\\n (vars.mathErr, vars.mintTokens) = divScalarByExpTruncate(vars.actualMintAmount, Exp({mantissa: vars.exchangeRateMantissa}));\\n require(vars.mathErr == MathError.NO_ERROR, \\\"MINT_EXCHANGE_CALCULATION_FAILED\\\");\\n\\n /*\\n * We calculate the new total supply of cTokens and minter token balance, checking for overflow:\\n * totalSupplyNew = totalSupply + mintTokens\\n * accountTokensNew = accountTokens[minter] + mintTokens\\n */\\n (vars.mathErr, vars.totalSupplyNew) = addUInt(totalSupply, vars.mintTokens);\\n require(vars.mathErr == MathError.NO_ERROR, \\\"MINT_NEW_TOTAL_SUPPLY_CALCULATION_FAILED\\\");\\n\\n (vars.mathErr, vars.accountTokensNew) = addUInt(accountTokens[minter], vars.mintTokens);\\n require(vars.mathErr == MathError.NO_ERROR, \\\"MINT_NEW_ACCOUNT_BALANCE_CALCULATION_FAILED\\\");\\n\\n /* We write previously calculated values into storage */\\n totalSupply = vars.totalSupplyNew;\\n accountTokens[minter] = vars.accountTokensNew;\\n\\n /* We emit a Mint event, and a Transfer event */\\n emit Mint(minter, vars.actualMintAmount, vars.mintTokens);\\n emit Transfer(address(this), minter, vars.mintTokens);\\n\\n /* We call the defense hook */\\n comptroller.mintVerify(address(this), minter, vars.actualMintAmount, vars.mintTokens);\\n\\n return (uint(Error.NO_ERROR), vars.actualMintAmount);\\n }\\n\\n /**\\n * @notice Sender redeems cTokens in exchange for the underlying asset\\n * @dev Accrues interest whether or not the operation succeeds, unless reverted\\n * @param redeemTokens The number of cTokens to redeem into underlying\\n * @return uint 0=success, otherwise a failure (see ErrorReporter.sol for details)\\n */\\n function redeemInternal(uint redeemTokens) internal nonReentrant returns (uint) {\\n uint error = accrueInterest();\\n if (error != uint(Error.NO_ERROR)) {\\n // accrueInterest emits logs on errors, but we still want to log the fact that an attempted redeem failed\\n return fail(Error(error), FailureInfo.REDEEM_ACCRUE_INTEREST_FAILED);\\n }\\n // redeemFresh emits redeem-specific logs on errors, so we don't need to\\n return redeemFresh(msg.sender, redeemTokens, 0);\\n }\\n\\n /**\\n * @notice Sender redeems cTokens in exchange for a specified amount of underlying asset\\n * @dev Accrues interest whether or not the operation succeeds, unless reverted\\n * @param redeemAmount The amount of underlying to receive from redeeming cTokens\\n * @return uint 0=success, otherwise a failure (see ErrorReporter.sol for details)\\n */\\n function redeemUnderlyingInternal(uint redeemAmount) internal nonReentrant returns (uint) {\\n uint error = accrueInterest();\\n if (error != uint(Error.NO_ERROR)) {\\n // accrueInterest emits logs on errors, but we still want to log the fact that an attempted redeem failed\\n return fail(Error(error), FailureInfo.REDEEM_ACCRUE_INTEREST_FAILED);\\n }\\n // redeemFresh emits redeem-specific logs on errors, so we don't need to\\n return redeemFresh(msg.sender, 0, redeemAmount);\\n }\\n\\n struct RedeemLocalVars {\\n Error err;\\n MathError mathErr;\\n uint exchangeRateMantissa;\\n uint redeemTokens;\\n uint redeemAmount;\\n uint totalSupplyNew;\\n uint accountTokensNew;\\n }\\n\\n /**\\n * @notice User redeems cTokens in exchange for the underlying asset\\n * @dev Assumes interest has already been accrued up to the current block\\n * @param redeemer The address of the account which is redeeming the tokens\\n * @param redeemTokensIn The number of cTokens to redeem into underlying (only one of redeemTokensIn or redeemAmountIn may be non-zero)\\n * @param redeemAmountIn The number of underlying tokens to receive from redeeming cTokens (only one of redeemTokensIn or redeemAmountIn may be non-zero)\\n * @return uint 0=success, otherwise a failure (see ErrorReporter.sol for details)\\n */\\n function redeemFresh(address payable redeemer, uint redeemTokensIn, uint redeemAmountIn) internal returns (uint) {\\n require(redeemTokensIn == 0 || redeemAmountIn == 0, \\\"one of redeemTokensIn or redeemAmountIn must be zero\\\");\\n\\n RedeemLocalVars memory vars;\\n\\n /* exchangeRate = invoke Exchange Rate Stored() */\\n (vars.mathErr, vars.exchangeRateMantissa) = exchangeRateStoredInternal();\\n if (vars.mathErr != MathError.NO_ERROR) {\\n return failOpaque(Error.MATH_ERROR, FailureInfo.REDEEM_EXCHANGE_RATE_READ_FAILED, uint(vars.mathErr));\\n }\\n\\n /* If redeemTokensIn > 0: */\\n if (redeemTokensIn > 0) {\\n /*\\n * We calculate the exchange rate and the amount of underlying to be redeemed:\\n * redeemTokens = redeemTokensIn\\n * redeemAmount = redeemTokensIn x exchangeRateCurrent\\n */\\n vars.redeemTokens = redeemTokensIn;\\n\\n (vars.mathErr, vars.redeemAmount) = mulScalarTruncate(Exp({mantissa: vars.exchangeRateMantissa}), redeemTokensIn);\\n if (vars.mathErr != MathError.NO_ERROR) {\\n return failOpaque(Error.MATH_ERROR, FailureInfo.REDEEM_EXCHANGE_TOKENS_CALCULATION_FAILED, uint(vars.mathErr));\\n }\\n } else {\\n /*\\n * We get the current exchange rate and calculate the amount to be redeemed:\\n * redeemTokens = redeemAmountIn / exchangeRate\\n * redeemAmount = redeemAmountIn\\n */\\n\\n (vars.mathErr, vars.redeemTokens) = divScalarByExpTruncate(redeemAmountIn, Exp({mantissa: vars.exchangeRateMantissa}));\\n if (vars.mathErr != MathError.NO_ERROR) {\\n return failOpaque(Error.MATH_ERROR, FailureInfo.REDEEM_EXCHANGE_AMOUNT_CALCULATION_FAILED, uint(vars.mathErr));\\n }\\n\\n vars.redeemAmount = redeemAmountIn;\\n }\\n\\n /* Fail if redeem not allowed */\\n uint allowed = comptroller.redeemAllowed(address(this), redeemer, vars.redeemTokens);\\n if (allowed != 0) {\\n return failOpaque(Error.COMPTROLLER_REJECTION, FailureInfo.REDEEM_COMPTROLLER_REJECTION, allowed);\\n }\\n\\n /* Verify market's block number equals current block number */\\n if (accrualBlockNumber != getBlockNumber()) {\\n return fail(Error.MARKET_NOT_FRESH, FailureInfo.REDEEM_FRESHNESS_CHECK);\\n }\\n\\n /*\\n * We calculate the new total supply and redeemer balance, checking for underflow:\\n * totalSupplyNew = totalSupply - redeemTokens\\n * accountTokensNew = accountTokens[redeemer] - redeemTokens\\n */\\n (vars.mathErr, vars.totalSupplyNew) = subUInt(totalSupply, vars.redeemTokens);\\n if (vars.mathErr != MathError.NO_ERROR) {\\n return failOpaque(Error.MATH_ERROR, FailureInfo.REDEEM_NEW_TOTAL_SUPPLY_CALCULATION_FAILED, uint(vars.mathErr));\\n }\\n\\n (vars.mathErr, vars.accountTokensNew) = subUInt(accountTokens[redeemer], vars.redeemTokens);\\n if (vars.mathErr != MathError.NO_ERROR) {\\n return failOpaque(Error.MATH_ERROR, FailureInfo.REDEEM_NEW_ACCOUNT_BALANCE_CALCULATION_FAILED, uint(vars.mathErr));\\n }\\n\\n /* Fail gracefully if protocol has insufficient cash */\\n if (getCashPrior() < vars.redeemAmount) {\\n return fail(Error.TOKEN_INSUFFICIENT_CASH, FailureInfo.REDEEM_TRANSFER_OUT_NOT_POSSIBLE);\\n }\\n\\n /////////////////////////\\n // EFFECTS & INTERACTIONS\\n // (No safe failures beyond this point)\\n\\n /*\\n * We invoke doTransferOut for the redeemer and the redeemAmount.\\n * Note: The cToken must handle variations between ERC-20 and ETH underlying.\\n * On success, the cToken has redeemAmount less of cash.\\n * doTransferOut reverts if anything goes wrong, since we can't be sure if side effects occurred.\\n */\\n doTransferOut(redeemer, vars.redeemAmount);\\n\\n /* We write previously calculated values into storage */\\n totalSupply = vars.totalSupplyNew;\\n accountTokens[redeemer] = vars.accountTokensNew;\\n\\n /* We emit a Transfer event, and a Redeem event */\\n emit Transfer(redeemer, address(this), vars.redeemTokens);\\n emit Redeem(redeemer, vars.redeemAmount, vars.redeemTokens);\\n\\n /* We call the defense hook */\\n comptroller.redeemVerify(address(this), redeemer, vars.redeemAmount, vars.redeemTokens);\\n\\n return uint(Error.NO_ERROR);\\n }\\n\\n /**\\n * @notice Sender borrows assets from the protocol to their own address\\n * @param borrowAmount The amount of the underlying asset to borrow\\n * @return uint 0=success, otherwise a failure (see ErrorReporter.sol for details)\\n */\\n function borrowInternal(uint borrowAmount) internal nonReentrant returns (uint) {\\n uint error = accrueInterest();\\n if (error != uint(Error.NO_ERROR)) {\\n // accrueInterest emits logs on errors, but we still want to log the fact that an attempted borrow failed\\n return fail(Error(error), FailureInfo.BORROW_ACCRUE_INTEREST_FAILED);\\n }\\n // borrowFresh emits borrow-specific logs on errors, so we don't need to\\n return borrowFresh(msg.sender, borrowAmount);\\n }\\n\\n struct BorrowLocalVars {\\n MathError mathErr;\\n uint accountBorrows;\\n uint accountBorrowsNew;\\n uint totalBorrowsNew;\\n }\\n\\n /**\\n * @notice Users borrow assets from the protocol to their own address\\n * @param borrowAmount The amount of the underlying asset to borrow\\n * @return uint 0=success, otherwise a failure (see ErrorReporter.sol for details)\\n */\\n function borrowFresh(address payable borrower, uint borrowAmount) internal returns (uint) {\\n /* Fail if borrow not allowed */\\n uint allowed = comptroller.borrowAllowed(address(this), borrower, borrowAmount);\\n if (allowed != 0) {\\n return failOpaque(Error.COMPTROLLER_REJECTION, FailureInfo.BORROW_COMPTROLLER_REJECTION, allowed);\\n }\\n\\n /* Verify market's block number equals current block number */\\n if (accrualBlockNumber != getBlockNumber()) {\\n return fail(Error.MARKET_NOT_FRESH, FailureInfo.BORROW_FRESHNESS_CHECK);\\n }\\n\\n /* Fail gracefully if protocol has insufficient underlying cash */\\n if (getCashPrior() < borrowAmount) {\\n return fail(Error.TOKEN_INSUFFICIENT_CASH, FailureInfo.BORROW_CASH_NOT_AVAILABLE);\\n }\\n\\n BorrowLocalVars memory vars;\\n\\n /*\\n * We calculate the new borrower and total borrow balances, failing on overflow:\\n * accountBorrowsNew = accountBorrows + borrowAmount\\n * totalBorrowsNew = totalBorrows + borrowAmount\\n */\\n (vars.mathErr, vars.accountBorrows) = borrowBalanceStoredInternal(borrower);\\n if (vars.mathErr != MathError.NO_ERROR) {\\n return failOpaque(Error.MATH_ERROR, FailureInfo.BORROW_ACCUMULATED_BALANCE_CALCULATION_FAILED, uint(vars.mathErr));\\n }\\n\\n (vars.mathErr, vars.accountBorrowsNew) = addUInt(vars.accountBorrows, borrowAmount);\\n if (vars.mathErr != MathError.NO_ERROR) {\\n return failOpaque(Error.MATH_ERROR, FailureInfo.BORROW_NEW_ACCOUNT_BORROW_BALANCE_CALCULATION_FAILED, uint(vars.mathErr));\\n }\\n\\n (vars.mathErr, vars.totalBorrowsNew) = addUInt(totalBorrows, borrowAmount);\\n if (vars.mathErr != MathError.NO_ERROR) {\\n return failOpaque(Error.MATH_ERROR, FailureInfo.BORROW_NEW_TOTAL_BALANCE_CALCULATION_FAILED, uint(vars.mathErr));\\n }\\n\\n /////////////////////////\\n // EFFECTS & INTERACTIONS\\n // (No safe failures beyond this point)\\n\\n /*\\n * We invoke doTransferOut for the borrower and the borrowAmount.\\n * Note: The cToken must handle variations between ERC-20 and ETH underlying.\\n * On success, the cToken borrowAmount less of cash.\\n * doTransferOut reverts if anything goes wrong, since we can't be sure if side effects occurred.\\n */\\n doTransferOut(borrower, borrowAmount);\\n\\n /* We write the previously calculated values into storage */\\n accountBorrows[borrower].principal = vars.accountBorrowsNew;\\n accountBorrows[borrower].interestIndex = borrowIndex;\\n totalBorrows = vars.totalBorrowsNew;\\n\\n /* We emit a Borrow event */\\n emit Borrow(borrower, borrowAmount, vars.accountBorrowsNew, vars.totalBorrowsNew);\\n\\n /* We call the defense hook */\\n comptroller.borrowVerify(address(this), borrower, borrowAmount);\\n\\n return uint(Error.NO_ERROR);\\n }\\n\\n /**\\n * @notice Sender repays their own borrow\\n * @param repayAmount The amount to repay\\n * @return (uint, uint) An error code (0=success, otherwise a failure, see ErrorReporter.sol), and the actual repayment amount.\\n */\\n function repayBorrowInternal(uint repayAmount) internal nonReentrant returns (uint, uint) {\\n uint error = accrueInterest();\\n if (error != uint(Error.NO_ERROR)) {\\n // accrueInterest emits logs on errors, but we still want to log the fact that an attempted borrow failed\\n return (fail(Error(error), FailureInfo.REPAY_BORROW_ACCRUE_INTEREST_FAILED), 0);\\n }\\n // repayBorrowFresh emits repay-borrow-specific logs on errors, so we don't need to\\n return repayBorrowFresh(msg.sender, msg.sender, repayAmount);\\n }\\n\\n /**\\n * @notice Sender repays a borrow belonging to borrower\\n * @param borrower the account with the debt being payed off\\n * @param repayAmount The amount to repay\\n * @return (uint, uint) An error code (0=success, otherwise a failure, see ErrorReporter.sol), and the actual repayment amount.\\n */\\n function repayBorrowBehalfInternal(address borrower, uint repayAmount) internal nonReentrant returns (uint, uint) {\\n uint error = accrueInterest();\\n if (error != uint(Error.NO_ERROR)) {\\n // accrueInterest emits logs on errors, but we still want to log the fact that an attempted borrow failed\\n return (fail(Error(error), FailureInfo.REPAY_BEHALF_ACCRUE_INTEREST_FAILED), 0);\\n }\\n // repayBorrowFresh emits repay-borrow-specific logs on errors, so we don't need to\\n return repayBorrowFresh(msg.sender, borrower, repayAmount);\\n }\\n\\n struct RepayBorrowLocalVars {\\n Error err;\\n MathError mathErr;\\n uint repayAmount;\\n uint borrowerIndex;\\n uint accountBorrows;\\n uint accountBorrowsNew;\\n uint totalBorrowsNew;\\n uint actualRepayAmount;\\n }\\n\\n /**\\n * @notice Borrows are repaid by another user (possibly the borrower).\\n * @param payer the account paying off the borrow\\n * @param borrower the account with the debt being payed off\\n * @param repayAmount the amount of undelrying tokens being returned\\n * @return (uint, uint) An error code (0=success, otherwise a failure, see ErrorReporter.sol), and the actual repayment amount.\\n */\\n function repayBorrowFresh(address payer, address borrower, uint repayAmount) internal returns (uint, uint) {\\n /* Fail if repayBorrow not allowed */\\n uint allowed = comptroller.repayBorrowAllowed(address(this), payer, borrower, repayAmount);\\n if (allowed != 0) {\\n return (failOpaque(Error.COMPTROLLER_REJECTION, FailureInfo.REPAY_BORROW_COMPTROLLER_REJECTION, allowed), 0);\\n }\\n\\n /* Verify market's block number equals current block number */\\n if (accrualBlockNumber != getBlockNumber()) {\\n return (fail(Error.MARKET_NOT_FRESH, FailureInfo.REPAY_BORROW_FRESHNESS_CHECK), 0);\\n }\\n\\n RepayBorrowLocalVars memory vars;\\n\\n /* We remember the original borrowerIndex for verification purposes */\\n vars.borrowerIndex = accountBorrows[borrower].interestIndex;\\n\\n /* We fetch the amount the borrower owes, with accumulated interest */\\n (vars.mathErr, vars.accountBorrows) = borrowBalanceStoredInternal(borrower);\\n if (vars.mathErr != MathError.NO_ERROR) {\\n return (failOpaque(Error.MATH_ERROR, FailureInfo.REPAY_BORROW_ACCUMULATED_BALANCE_CALCULATION_FAILED, uint(vars.mathErr)), 0);\\n }\\n\\n /* If repayAmount == -1, repayAmount = accountBorrows */\\n if (repayAmount == uint(-1)) {\\n vars.repayAmount = vars.accountBorrows;\\n } else {\\n vars.repayAmount = repayAmount;\\n }\\n\\n /////////////////////////\\n // EFFECTS & INTERACTIONS\\n // (No safe failures beyond this point)\\n\\n /*\\n * We call doTransferIn for the payer and the repayAmount\\n * Note: The cToken must handle variations between ERC-20 and ETH underlying.\\n * On success, the cToken holds an additional repayAmount of cash.\\n * doTransferIn reverts if anything goes wrong, since we can't be sure if side effects occurred.\\n * it returns the amount actually transferred, in case of a fee.\\n */\\n vars.actualRepayAmount = doTransferIn(payer, vars.repayAmount);\\n\\n /*\\n * We calculate the new borrower and total borrow balances, failing on underflow:\\n * accountBorrowsNew = accountBorrows - actualRepayAmount\\n * totalBorrowsNew = totalBorrows - actualRepayAmount\\n */\\n (vars.mathErr, vars.accountBorrowsNew) = subUInt(vars.accountBorrows, vars.actualRepayAmount);\\n require(vars.mathErr == MathError.NO_ERROR, \\\"REPAY_BORROW_NEW_ACCOUNT_BORROW_BALANCE_CALCULATION_FAILED\\\");\\n\\n (vars.mathErr, vars.totalBorrowsNew) = subUInt(totalBorrows, vars.actualRepayAmount);\\n require(vars.mathErr == MathError.NO_ERROR, \\\"REPAY_BORROW_NEW_TOTAL_BALANCE_CALCULATION_FAILED\\\");\\n\\n /* We write the previously calculated values into storage */\\n accountBorrows[borrower].principal = vars.accountBorrowsNew;\\n accountBorrows[borrower].interestIndex = borrowIndex;\\n totalBorrows = vars.totalBorrowsNew;\\n\\n /* We emit a RepayBorrow event */\\n emit RepayBorrow(payer, borrower, vars.actualRepayAmount, vars.accountBorrowsNew, vars.totalBorrowsNew);\\n\\n /* We call the defense hook */\\n comptroller.repayBorrowVerify(address(this), payer, borrower, vars.actualRepayAmount, vars.borrowerIndex);\\n\\n return (uint(Error.NO_ERROR), vars.actualRepayAmount);\\n }\\n\\n /**\\n * @notice The sender liquidates the borrowers collateral.\\n * The collateral seized is transferred to the liquidator.\\n * @param borrower The borrower of this cToken to be liquidated\\n * @param cTokenCollateral The market in which to seize collateral from the borrower\\n * @param repayAmount The amount of the underlying borrowed asset to repay\\n * @return (uint, uint) An error code (0=success, otherwise a failure, see ErrorReporter.sol), and the actual repayment amount.\\n */\\n function liquidateBorrowInternal(address borrower, uint repayAmount, CTokenInterface cTokenCollateral) internal nonReentrant returns (uint, uint) {\\n uint error = accrueInterest();\\n if (error != uint(Error.NO_ERROR)) {\\n // accrueInterest emits logs on errors, but we still want to log the fact that an attempted liquidation failed\\n return (fail(Error(error), FailureInfo.LIQUIDATE_ACCRUE_BORROW_INTEREST_FAILED), 0);\\n }\\n\\n error = cTokenCollateral.accrueInterest();\\n if (error != uint(Error.NO_ERROR)) {\\n // accrueInterest emits logs on errors, but we still want to log the fact that an attempted liquidation failed\\n return (fail(Error(error), FailureInfo.LIQUIDATE_ACCRUE_COLLATERAL_INTEREST_FAILED), 0);\\n }\\n\\n // liquidateBorrowFresh emits borrow-specific logs on errors, so we don't need to\\n return liquidateBorrowFresh(msg.sender, borrower, repayAmount, cTokenCollateral);\\n }\\n\\n /**\\n * @notice The liquidator liquidates the borrowers collateral.\\n * The collateral seized is transferred to the liquidator.\\n * @param borrower The borrower of this cToken to be liquidated\\n * @param liquidator The address repaying the borrow and seizing collateral\\n * @param cTokenCollateral The market in which to seize collateral from the borrower\\n * @param repayAmount The amount of the underlying borrowed asset to repay\\n * @return (uint, uint) An error code (0=success, otherwise a failure, see ErrorReporter.sol), and the actual repayment amount.\\n */\\n function liquidateBorrowFresh(address liquidator, address borrower, uint repayAmount, CTokenInterface cTokenCollateral) internal returns (uint, uint) {\\n /* Fail if liquidate not allowed */\\n uint allowed = comptroller.liquidateBorrowAllowed(address(this), address(cTokenCollateral), liquidator, borrower, repayAmount);\\n if (allowed != 0) {\\n return (failOpaque(Error.COMPTROLLER_REJECTION, FailureInfo.LIQUIDATE_COMPTROLLER_REJECTION, allowed), 0);\\n }\\n\\n /* Verify market's block number equals current block number */\\n if (accrualBlockNumber != getBlockNumber()) {\\n return (fail(Error.MARKET_NOT_FRESH, FailureInfo.LIQUIDATE_FRESHNESS_CHECK), 0);\\n }\\n\\n /* Verify cTokenCollateral market's block number equals current block number */\\n if (cTokenCollateral.accrualBlockNumber() != getBlockNumber()) {\\n return (fail(Error.MARKET_NOT_FRESH, FailureInfo.LIQUIDATE_COLLATERAL_FRESHNESS_CHECK), 0);\\n }\\n\\n /* Fail if borrower = liquidator */\\n if (borrower == liquidator) {\\n return (fail(Error.INVALID_ACCOUNT_PAIR, FailureInfo.LIQUIDATE_LIQUIDATOR_IS_BORROWER), 0);\\n }\\n\\n /* Fail if repayAmount = 0 */\\n if (repayAmount == 0) {\\n return (fail(Error.INVALID_CLOSE_AMOUNT_REQUESTED, FailureInfo.LIQUIDATE_CLOSE_AMOUNT_IS_ZERO), 0);\\n }\\n\\n /* Fail if repayAmount = -1 */\\n if (repayAmount == uint(-1)) {\\n return (fail(Error.INVALID_CLOSE_AMOUNT_REQUESTED, FailureInfo.LIQUIDATE_CLOSE_AMOUNT_IS_UINT_MAX), 0);\\n }\\n\\n\\n /* Fail if repayBorrow fails */\\n (uint repayBorrowError, uint actualRepayAmount) = repayBorrowFresh(liquidator, borrower, repayAmount);\\n if (repayBorrowError != uint(Error.NO_ERROR)) {\\n return (fail(Error(repayBorrowError), FailureInfo.LIQUIDATE_REPAY_BORROW_FRESH_FAILED), 0);\\n }\\n\\n /////////////////////////\\n // EFFECTS & INTERACTIONS\\n // (No safe failures beyond this point)\\n\\n /* We calculate the number of collateral tokens that will be seized */\\n (uint amountSeizeError, uint seizeTokens) = comptroller.liquidateCalculateSeizeTokens(address(this), address(cTokenCollateral), actualRepayAmount);\\n require(amountSeizeError == uint(Error.NO_ERROR), \\\"LIQUIDATE_COMPTROLLER_CALCULATE_AMOUNT_SEIZE_FAILED\\\");\\n\\n /* Revert if borrower collateral token balance < seizeTokens */\\n require(cTokenCollateral.balanceOf(borrower) >= seizeTokens, \\\"LIQUIDATE_SEIZE_TOO_MUCH\\\");\\n\\n // If this is also the collateral, run seizeInternal to avoid re-entrancy, otherwise make an external call\\n uint seizeError;\\n if (address(cTokenCollateral) == address(this)) {\\n seizeError = seizeInternal(address(this), liquidator, borrower, seizeTokens);\\n } else {\\n seizeError = cTokenCollateral.seize(liquidator, borrower, seizeTokens);\\n }\\n\\n /* Revert if seize tokens fails (since we cannot be sure of side effects) */\\n require(seizeError == uint(Error.NO_ERROR), \\\"token seizure failed\\\");\\n\\n /* We emit a LiquidateBorrow event */\\n emit LiquidateBorrow(liquidator, borrower, actualRepayAmount, address(cTokenCollateral), seizeTokens);\\n\\n /* We call the defense hook */\\n comptroller.liquidateBorrowVerify(address(this), address(cTokenCollateral), liquidator, borrower, actualRepayAmount, seizeTokens);\\n\\n return (uint(Error.NO_ERROR), actualRepayAmount);\\n }\\n\\n /**\\n * @notice Transfers collateral tokens (this market) to the liquidator.\\n * @dev Will fail unless called by another cToken during the process of liquidation.\\n * Its absolutely critical to use msg.sender as the borrowed cToken and not a parameter.\\n * @param liquidator The account receiving seized collateral\\n * @param borrower The account having collateral seized\\n * @param seizeTokens The number of cTokens to seize\\n * @return uint 0=success, otherwise a failure (see ErrorReporter.sol for details)\\n */\\n function seize(address liquidator, address borrower, uint seizeTokens) external nonReentrant returns (uint) {\\n return seizeInternal(msg.sender, liquidator, borrower, seizeTokens);\\n }\\n\\n /**\\n * @notice Transfers collateral tokens (this market) to the liquidator.\\n * @dev Called only during an in-kind liquidation, or by liquidateBorrow during the liquidation of another CToken.\\n * Its absolutely critical to use msg.sender as the seizer cToken and not a parameter.\\n * @param seizerToken The contract seizing the collateral (i.e. borrowed cToken)\\n * @param liquidator The account receiving seized collateral\\n * @param borrower The account having collateral seized\\n * @param seizeTokens The number of cTokens to seize\\n * @return uint 0=success, otherwise a failure (see ErrorReporter.sol for details)\\n */\\n function seizeInternal(address seizerToken, address liquidator, address borrower, uint seizeTokens) internal returns (uint) {\\n /* Fail if seize not allowed */\\n uint allowed = comptroller.seizeAllowed(address(this), seizerToken, liquidator, borrower, seizeTokens);\\n if (allowed != 0) {\\n return failOpaque(Error.COMPTROLLER_REJECTION, FailureInfo.LIQUIDATE_SEIZE_COMPTROLLER_REJECTION, allowed);\\n }\\n\\n /* Fail if borrower = liquidator */\\n if (borrower == liquidator) {\\n return fail(Error.INVALID_ACCOUNT_PAIR, FailureInfo.LIQUIDATE_SEIZE_LIQUIDATOR_IS_BORROWER);\\n }\\n\\n MathError mathErr;\\n uint borrowerTokensNew;\\n uint liquidatorTokensNew;\\n\\n /*\\n * We calculate the new borrower and liquidator token balances, failing on underflow/overflow:\\n * borrowerTokensNew = accountTokens[borrower] - seizeTokens\\n * liquidatorTokensNew = accountTokens[liquidator] + seizeTokens\\n */\\n (mathErr, borrowerTokensNew) = subUInt(accountTokens[borrower], seizeTokens);\\n if (mathErr != MathError.NO_ERROR) {\\n return failOpaque(Error.MATH_ERROR, FailureInfo.LIQUIDATE_SEIZE_BALANCE_DECREMENT_FAILED, uint(mathErr));\\n }\\n\\n (mathErr, liquidatorTokensNew) = addUInt(accountTokens[liquidator], seizeTokens);\\n if (mathErr != MathError.NO_ERROR) {\\n return failOpaque(Error.MATH_ERROR, FailureInfo.LIQUIDATE_SEIZE_BALANCE_INCREMENT_FAILED, uint(mathErr));\\n }\\n\\n /////////////////////////\\n // EFFECTS & INTERACTIONS\\n // (No safe failures beyond this point)\\n\\n /* We write the previously calculated values into storage */\\n accountTokens[borrower] = borrowerTokensNew;\\n accountTokens[liquidator] = liquidatorTokensNew;\\n\\n /* Emit a Transfer event */\\n emit Transfer(borrower, liquidator, seizeTokens);\\n\\n /* We call the defense hook */\\n comptroller.seizeVerify(address(this), seizerToken, liquidator, borrower, seizeTokens);\\n\\n return uint(Error.NO_ERROR);\\n }\\n\\n\\n /*** Admin Functions ***/\\n\\n /**\\n * @notice Begins transfer of admin rights. The newPendingAdmin must call `_acceptAdmin` to finalize the transfer.\\n * @dev Admin function to begin change of admin. The newPendingAdmin must call `_acceptAdmin` to finalize the transfer.\\n * @param newPendingAdmin New pending admin.\\n * @return uint 0=success, otherwise a failure (see ErrorReporter.sol for details)\\n */\\n function _setPendingAdmin(address payable newPendingAdmin) external returns (uint) {\\n // Check caller = admin\\n if (msg.sender != admin) {\\n return fail(Error.UNAUTHORIZED, FailureInfo.SET_PENDING_ADMIN_OWNER_CHECK);\\n }\\n\\n // Save current value, if any, for inclusion in log\\n address oldPendingAdmin = pendingAdmin;\\n\\n // Store pendingAdmin with value newPendingAdmin\\n pendingAdmin = newPendingAdmin;\\n\\n // Emit NewPendingAdmin(oldPendingAdmin, newPendingAdmin)\\n emit NewPendingAdmin(oldPendingAdmin, newPendingAdmin);\\n\\n return uint(Error.NO_ERROR);\\n }\\n\\n /**\\n * @notice Accepts transfer of admin rights. msg.sender must be pendingAdmin\\n * @dev Admin function for pending admin to accept role and update admin\\n * @return uint 0=success, otherwise a failure (see ErrorReporter.sol for details)\\n */\\n function _acceptAdmin() external returns (uint) {\\n // Check caller is pendingAdmin and pendingAdmin \\u2260 address(0)\\n if (msg.sender != pendingAdmin || msg.sender == address(0)) {\\n return fail(Error.UNAUTHORIZED, FailureInfo.ACCEPT_ADMIN_PENDING_ADMIN_CHECK);\\n }\\n\\n // Save current values for inclusion in log\\n address oldAdmin = admin;\\n address oldPendingAdmin = pendingAdmin;\\n\\n // Store admin with value pendingAdmin\\n admin = pendingAdmin;\\n\\n // Clear the pending value\\n pendingAdmin = address(0);\\n\\n emit NewAdmin(oldAdmin, admin);\\n emit NewPendingAdmin(oldPendingAdmin, pendingAdmin);\\n\\n return uint(Error.NO_ERROR);\\n }\\n\\n /**\\n * @notice Sets a new comptroller for the market\\n * @dev Admin function to set a new comptroller\\n * @return uint 0=success, otherwise a failure (see ErrorReporter.sol for details)\\n */\\n function _setComptroller(ComptrollerInterface newComptroller) public returns (uint) {\\n // Check caller is admin\\n if (msg.sender != admin) {\\n return fail(Error.UNAUTHORIZED, FailureInfo.SET_COMPTROLLER_OWNER_CHECK);\\n }\\n\\n ComptrollerInterface oldComptroller = comptroller;\\n // Ensure invoke comptroller.isComptroller() returns true\\n require(newComptroller.isComptroller(), \\\"marker method returned false\\\");\\n\\n // Set market's comptroller to newComptroller\\n comptroller = newComptroller;\\n\\n // Emit NewComptroller(oldComptroller, newComptroller)\\n emit NewComptroller(oldComptroller, newComptroller);\\n\\n return uint(Error.NO_ERROR);\\n }\\n\\n /**\\n * @notice accrues interest and sets a new reserve factor for the protocol using _setReserveFactorFresh\\n * @dev Admin function to accrue interest and set a new reserve factor\\n * @return uint 0=success, otherwise a failure (see ErrorReporter.sol for details)\\n */\\n function _setReserveFactor(uint newReserveFactorMantissa) external nonReentrant returns (uint) {\\n uint error = accrueInterest();\\n if (error != uint(Error.NO_ERROR)) {\\n // accrueInterest emits logs on errors, but on top of that we want to log the fact that an attempted reserve factor change failed.\\n return fail(Error(error), FailureInfo.SET_RESERVE_FACTOR_ACCRUE_INTEREST_FAILED);\\n }\\n // _setReserveFactorFresh emits reserve-factor-specific logs on errors, so we don't need to.\\n return _setReserveFactorFresh(newReserveFactorMantissa);\\n }\\n\\n /**\\n * @notice Sets a new reserve factor for the protocol (*requires fresh interest accrual)\\n * @dev Admin function to set a new reserve factor\\n * @return uint 0=success, otherwise a failure (see ErrorReporter.sol for details)\\n */\\n function _setReserveFactorFresh(uint newReserveFactorMantissa) internal returns (uint) {\\n // Check caller is admin\\n if (msg.sender != admin) {\\n return fail(Error.UNAUTHORIZED, FailureInfo.SET_RESERVE_FACTOR_ADMIN_CHECK);\\n }\\n\\n // Verify market's block number equals current block number\\n if (accrualBlockNumber != getBlockNumber()) {\\n return fail(Error.MARKET_NOT_FRESH, FailureInfo.SET_RESERVE_FACTOR_FRESH_CHECK);\\n }\\n\\n // Check newReserveFactor \\u2264 maxReserveFactor\\n if (newReserveFactorMantissa > reserveFactorMaxMantissa) {\\n return fail(Error.BAD_INPUT, FailureInfo.SET_RESERVE_FACTOR_BOUNDS_CHECK);\\n }\\n\\n uint oldReserveFactorMantissa = reserveFactorMantissa;\\n reserveFactorMantissa = newReserveFactorMantissa;\\n\\n emit NewReserveFactor(oldReserveFactorMantissa, newReserveFactorMantissa);\\n\\n return uint(Error.NO_ERROR);\\n }\\n\\n /**\\n * @notice Accrues interest and reduces reserves by transferring from msg.sender\\n * @param addAmount Amount of addition to reserves\\n * @return uint 0=success, otherwise a failure (see ErrorReporter.sol for details)\\n */\\n function _addReservesInternal(uint addAmount) internal nonReentrant returns (uint) {\\n uint error = accrueInterest();\\n if (error != uint(Error.NO_ERROR)) {\\n // accrueInterest emits logs on errors, but on top of that we want to log the fact that an attempted reduce reserves failed.\\n return fail(Error(error), FailureInfo.ADD_RESERVES_ACCRUE_INTEREST_FAILED);\\n }\\n\\n // _addReservesFresh emits reserve-addition-specific logs on errors, so we don't need to.\\n (error, ) = _addReservesFresh(addAmount);\\n return error;\\n }\\n\\n /**\\n * @notice Add reserves by transferring from caller\\n * @dev Requires fresh interest accrual\\n * @param addAmount Amount of addition to reserves\\n * @return (uint, uint) An error code (0=success, otherwise a failure (see ErrorReporter.sol for details)) and the actual amount added, net token fees\\n */\\n function _addReservesFresh(uint addAmount) internal returns (uint, uint) {\\n // totalReserves + actualAddAmount\\n uint totalReservesNew;\\n uint actualAddAmount;\\n\\n // We fail gracefully unless market's block number equals current block number\\n if (accrualBlockNumber != getBlockNumber()) {\\n return (fail(Error.MARKET_NOT_FRESH, FailureInfo.ADD_RESERVES_FRESH_CHECK), actualAddAmount);\\n }\\n\\n /////////////////////////\\n // EFFECTS & INTERACTIONS\\n // (No safe failures beyond this point)\\n\\n /*\\n * We call doTransferIn for the caller and the addAmount\\n * Note: The cToken must handle variations between ERC-20 and ETH underlying.\\n * On success, the cToken holds an additional addAmount of cash.\\n * doTransferIn reverts if anything goes wrong, since we can't be sure if side effects occurred.\\n * it returns the amount actually transferred, in case of a fee.\\n */\\n\\n actualAddAmount = doTransferIn(msg.sender, addAmount);\\n\\n totalReservesNew = totalReserves + actualAddAmount;\\n\\n /* Revert on overflow */\\n require(totalReservesNew >= totalReserves, \\\"add reserves unexpected overflow\\\");\\n\\n // Store reserves[n+1] = reserves[n] + actualAddAmount\\n totalReserves = totalReservesNew;\\n\\n /* Emit NewReserves(admin, actualAddAmount, reserves[n+1]) */\\n emit ReservesAdded(msg.sender, actualAddAmount, totalReservesNew);\\n\\n /* Return (NO_ERROR, actualAddAmount) */\\n return (uint(Error.NO_ERROR), actualAddAmount);\\n }\\n\\n\\n /**\\n * @notice Accrues interest and reduces reserves by transferring to admin\\n * @param reduceAmount Amount of reduction to reserves\\n * @return uint 0=success, otherwise a failure (see ErrorReporter.sol for details)\\n */\\n function _reduceReserves(uint reduceAmount) external nonReentrant returns (uint) {\\n uint error = accrueInterest();\\n if (error != uint(Error.NO_ERROR)) {\\n // accrueInterest emits logs on errors, but on top of that we want to log the fact that an attempted reduce reserves failed.\\n return fail(Error(error), FailureInfo.REDUCE_RESERVES_ACCRUE_INTEREST_FAILED);\\n }\\n // _reduceReservesFresh emits reserve-reduction-specific logs on errors, so we don't need to.\\n return _reduceReservesFresh(reduceAmount);\\n }\\n\\n /**\\n * @notice Reduces reserves by transferring to admin\\n * @dev Requires fresh interest accrual\\n * @param reduceAmount Amount of reduction to reserves\\n * @return uint 0=success, otherwise a failure (see ErrorReporter.sol for details)\\n */\\n function _reduceReservesFresh(uint reduceAmount) internal returns (uint) {\\n // totalReserves - reduceAmount\\n uint totalReservesNew;\\n\\n // Check caller is admin\\n if (msg.sender != admin) {\\n return fail(Error.UNAUTHORIZED, FailureInfo.REDUCE_RESERVES_ADMIN_CHECK);\\n }\\n\\n // We fail gracefully unless market's block number equals current block number\\n if (accrualBlockNumber != getBlockNumber()) {\\n return fail(Error.MARKET_NOT_FRESH, FailureInfo.REDUCE_RESERVES_FRESH_CHECK);\\n }\\n\\n // Fail gracefully if protocol has insufficient underlying cash\\n if (getCashPrior() < reduceAmount) {\\n return fail(Error.TOKEN_INSUFFICIENT_CASH, FailureInfo.REDUCE_RESERVES_CASH_NOT_AVAILABLE);\\n }\\n\\n // Check reduceAmount \\u2264 reserves[n] (totalReserves)\\n if (reduceAmount > totalReserves) {\\n return fail(Error.BAD_INPUT, FailureInfo.REDUCE_RESERVES_VALIDATION);\\n }\\n\\n /////////////////////////\\n // EFFECTS & INTERACTIONS\\n // (No safe failures beyond this point)\\n\\n totalReservesNew = totalReserves - reduceAmount;\\n // We checked reduceAmount <= totalReserves above, so this should never revert.\\n require(totalReservesNew <= totalReserves, \\\"reduce reserves unexpected underflow\\\");\\n\\n // Store reserves[n+1] = reserves[n] - reduceAmount\\n totalReserves = totalReservesNew;\\n\\n // doTransferOut reverts if anything goes wrong, since we can't be sure if side effects occurred.\\n doTransferOut(admin, reduceAmount);\\n\\n emit ReservesReduced(admin, reduceAmount, totalReservesNew);\\n\\n return uint(Error.NO_ERROR);\\n }\\n\\n /**\\n * @notice accrues interest and updates the interest rate model using _setInterestRateModelFresh\\n * @dev Admin function to accrue interest and update the interest rate model\\n * @param newInterestRateModel the new interest rate model to use\\n * @return uint 0=success, otherwise a failure (see ErrorReporter.sol for details)\\n */\\n function _setInterestRateModel(InterestRateModel newInterestRateModel) public returns (uint) {\\n uint error = accrueInterest();\\n if (error != uint(Error.NO_ERROR)) {\\n // accrueInterest emits logs on errors, but on top of that we want to log the fact that an attempted change of interest rate model failed\\n return fail(Error(error), FailureInfo.SET_INTEREST_RATE_MODEL_ACCRUE_INTEREST_FAILED);\\n }\\n // _setInterestRateModelFresh emits interest-rate-model-update-specific logs on errors, so we don't need to.\\n return _setInterestRateModelFresh(newInterestRateModel);\\n }\\n\\n /**\\n * @notice updates the interest rate model (*requires fresh interest accrual)\\n * @dev Admin function to update the interest rate model\\n * @param newInterestRateModel the new interest rate model to use\\n * @return uint 0=success, otherwise a failure (see ErrorReporter.sol for details)\\n */\\n function _setInterestRateModelFresh(InterestRateModel newInterestRateModel) internal returns (uint) {\\n\\n // Used to store old model for use in the event that is emitted on success\\n InterestRateModel oldInterestRateModel;\\n\\n // Check caller is admin\\n if (msg.sender != admin) {\\n return fail(Error.UNAUTHORIZED, FailureInfo.SET_INTEREST_RATE_MODEL_OWNER_CHECK);\\n }\\n\\n // We fail gracefully unless market's block number equals current block number\\n if (accrualBlockNumber != getBlockNumber()) {\\n return fail(Error.MARKET_NOT_FRESH, FailureInfo.SET_INTEREST_RATE_MODEL_FRESH_CHECK);\\n }\\n\\n // Track the market's current interest rate model\\n oldInterestRateModel = interestRateModel;\\n\\n // Ensure invoke newInterestRateModel.isInterestRateModel() returns true\\n require(newInterestRateModel.isInterestRateModel(), \\\"marker method returned false\\\");\\n\\n // Set the interest rate model to newInterestRateModel\\n interestRateModel = newInterestRateModel;\\n\\n // Emit NewMarketInterestRateModel(oldInterestRateModel, newInterestRateModel)\\n emit NewMarketInterestRateModel(oldInterestRateModel, newInterestRateModel);\\n\\n return uint(Error.NO_ERROR);\\n }\\n\\n /*** Safe Token ***/\\n\\n /**\\n * @notice Gets balance of this contract in terms of the underlying\\n * @dev This excludes the value of the current message, if any\\n * @return The quantity of underlying owned by this contract\\n */\\n function getCashPrior() internal view returns (uint);\\n\\n /**\\n * @dev Performs a transfer in, reverting upon failure. Returns the amount actually transferred to the protocol, in case of a fee.\\n * This may revert due to insufficient balance or insufficient allowance.\\n */\\n function doTransferIn(address from, uint amount) internal returns (uint);\\n\\n /**\\n * @dev Performs a transfer out, ideally returning an explanatory error code upon failure tather than reverting.\\n * If caller has not called checked protocol's balance, may revert due to insufficient cash held in the contract.\\n * If caller has checked protocol's balance, and verified it is >= amount, this should not revert in normal conditions.\\n */\\n function doTransferOut(address payable to, uint amount) internal;\\n\\n\\n /*** Reentrancy Guard ***/\\n\\n /**\\n * @dev Prevents a contract from calling itself, directly or indirectly.\\n */\\n modifier nonReentrant() {\\n require(_notEntered, \\\"re-entered\\\");\\n _notEntered = false;\\n _;\\n _notEntered = true; // get a gas-refund post-Istanbul\\n }\\n}\\n\",\"keccak256\":\"0x16c3298d5c193a3ba224c9832d88d354da77d01c36037b58ad2cdfe3b82df42c\"},\"contracts/CTokenInterfaces.sol\":{\"content\":\"pragma solidity ^0.5.16;\\n\\nimport \\\"./ComptrollerInterface.sol\\\";\\nimport \\\"./InterestRateModel.sol\\\";\\n\\ncontract CTokenStorage {\\n /**\\n * @dev Guard variable for re-entrancy checks\\n */\\n bool internal _notEntered;\\n\\n /**\\n * @notice EIP-20 token name for this token\\n */\\n string public name;\\n\\n /**\\n * @notice EIP-20 token symbol for this token\\n */\\n string public symbol;\\n\\n /**\\n * @notice EIP-20 token decimals for this token\\n */\\n uint8 public decimals;\\n\\n /**\\n * @notice Maximum borrow rate that can ever be applied (.0005% / block)\\n */\\n\\n uint internal constant borrowRateMaxMantissa = 0.0005e16;\\n\\n /**\\n * @notice Maximum fraction of interest that can be set aside for reserves\\n */\\n uint internal constant reserveFactorMaxMantissa = 1e18;\\n\\n /**\\n * @notice Administrator for this contract\\n */\\n address payable public admin;\\n\\n /**\\n * @notice Pending administrator for this contract\\n */\\n address payable public pendingAdmin;\\n\\n /**\\n * @notice Contract which oversees inter-cToken operations\\n */\\n ComptrollerInterface public comptroller;\\n\\n /**\\n * @notice Model which tells what the current interest rate should be\\n */\\n InterestRateModel public interestRateModel;\\n\\n /**\\n * @notice Initial exchange rate used when minting the first CTokens (used when totalSupply = 0)\\n */\\n uint internal initialExchangeRateMantissa;\\n\\n /**\\n * @notice Fraction of interest currently set aside for reserves\\n */\\n uint public reserveFactorMantissa;\\n\\n /**\\n * @notice Block number that interest was last accrued at\\n */\\n uint public accrualBlockNumber;\\n\\n /**\\n * @notice Accumulator of the total earned interest rate since the opening of the market\\n */\\n uint public borrowIndex;\\n\\n /**\\n * @notice Total amount of outstanding borrows of the underlying in this market\\n */\\n uint public totalBorrows;\\n\\n /**\\n * @notice Total amount of reserves of the underlying held in this market\\n */\\n uint public totalReserves;\\n\\n /**\\n * @notice Total number of tokens in circulation\\n */\\n uint public totalSupply;\\n\\n /**\\n * @notice Official record of token balances for each account\\n */\\n mapping (address => uint) internal accountTokens;\\n\\n /**\\n * @notice Approved token transfer amounts on behalf of others\\n */\\n mapping (address => mapping (address => uint)) internal transferAllowances;\\n\\n /**\\n * @notice Container for borrow balance information\\n * @member principal Total balance (with accrued interest), after applying the most recent balance-changing action\\n * @member interestIndex Global borrowIndex as of the most recent balance-changing action\\n */\\n struct BorrowSnapshot {\\n uint principal;\\n uint interestIndex;\\n }\\n\\n /**\\n * @notice Mapping of account addresses to outstanding borrow balances\\n */\\n mapping(address => BorrowSnapshot) internal accountBorrows;\\n}\\n\\ncontract CTokenInterface is CTokenStorage {\\n /**\\n * @notice Indicator that this is a CToken contract (for inspection)\\n */\\n bool public constant isCToken = true;\\n\\n\\n /*** Market Events ***/\\n\\n /**\\n * @notice Event emitted when interest is accrued\\n */\\n event AccrueInterest(uint cashPrior, uint interestAccumulated, uint borrowIndex, uint totalBorrows);\\n\\n /**\\n * @notice Event emitted when tokens are minted\\n */\\n event Mint(address minter, uint mintAmount, uint mintTokens);\\n\\n /**\\n * @notice Event emitted when tokens are redeemed\\n */\\n event Redeem(address redeemer, uint redeemAmount, uint redeemTokens);\\n\\n /**\\n * @notice Event emitted when underlying is borrowed\\n */\\n event Borrow(address borrower, uint borrowAmount, uint accountBorrows, uint totalBorrows);\\n\\n /**\\n * @notice Event emitted when a borrow is repaid\\n */\\n event RepayBorrow(address payer, address borrower, uint repayAmount, uint accountBorrows, uint totalBorrows);\\n\\n /**\\n * @notice Event emitted when a borrow is liquidated\\n */\\n event LiquidateBorrow(address liquidator, address borrower, uint repayAmount, address cTokenCollateral, uint seizeTokens);\\n\\n\\n /*** Admin Events ***/\\n\\n /**\\n * @notice Event emitted when pendingAdmin is changed\\n */\\n event NewPendingAdmin(address oldPendingAdmin, address newPendingAdmin);\\n\\n /**\\n * @notice Event emitted when pendingAdmin is accepted, which means admin is updated\\n */\\n event NewAdmin(address oldAdmin, address newAdmin);\\n\\n /**\\n * @notice Event emitted when comptroller is changed\\n */\\n event NewComptroller(ComptrollerInterface oldComptroller, ComptrollerInterface newComptroller);\\n\\n /**\\n * @notice Event emitted when interestRateModel is changed\\n */\\n event NewMarketInterestRateModel(InterestRateModel oldInterestRateModel, InterestRateModel newInterestRateModel);\\n\\n /**\\n * @notice Event emitted when the reserve factor is changed\\n */\\n event NewReserveFactor(uint oldReserveFactorMantissa, uint newReserveFactorMantissa);\\n\\n /**\\n * @notice Event emitted when the reserves are added\\n */\\n event ReservesAdded(address benefactor, uint addAmount, uint newTotalReserves);\\n\\n /**\\n * @notice Event emitted when the reserves are reduced\\n */\\n event ReservesReduced(address admin, uint reduceAmount, uint newTotalReserves);\\n\\n /**\\n * @notice EIP20 Transfer event\\n */\\n event Transfer(address indexed from, address indexed to, uint amount);\\n\\n /**\\n * @notice EIP20 Approval event\\n */\\n event Approval(address indexed owner, address indexed spender, uint amount);\\n\\n /**\\n * @notice Failure event\\n */\\n event Failure(uint error, uint info, uint detail);\\n\\n\\n /*** User Interface ***/\\n\\n function transfer(address dst, uint amount) external returns (bool);\\n function transferFrom(address src, address dst, uint amount) external returns (bool);\\n function approve(address spender, uint amount) external returns (bool);\\n function allowance(address owner, address spender) external view returns (uint);\\n function balanceOf(address owner) external view returns (uint);\\n function balanceOfUnderlying(address owner) external returns (uint);\\n function getAccountSnapshot(address account) external view returns (uint, uint, uint, uint);\\n function borrowRatePerBlock() external view returns (uint);\\n function supplyRatePerBlock() external view returns (uint);\\n function totalBorrowsCurrent() external returns (uint);\\n function borrowBalanceCurrent(address account) external returns (uint);\\n function borrowBalanceStored(address account) public view returns (uint);\\n function exchangeRateCurrent() public returns (uint);\\n function exchangeRateStored() public view returns (uint);\\n function getCash() external view returns (uint);\\n function accrueInterest() public returns (uint);\\n function seize(address liquidator, address borrower, uint seizeTokens) external returns (uint);\\n\\n\\n /*** Admin Functions ***/\\n\\n function _setPendingAdmin(address payable newPendingAdmin) external returns (uint);\\n function _acceptAdmin() external returns (uint);\\n function _setComptroller(ComptrollerInterface newComptroller) public returns (uint);\\n function _setReserveFactor(uint newReserveFactorMantissa) external returns (uint);\\n function _reduceReserves(uint reduceAmount) external returns (uint);\\n function _setInterestRateModel(InterestRateModel newInterestRateModel) public returns (uint);\\n}\\n\\ncontract CErc20Storage {\\n /**\\n * @notice Underlying asset for this CToken\\n */\\n address public underlying;\\n}\\n\\ncontract CErc20Interface is CErc20Storage {\\n\\n /*** User Interface ***/\\n\\n function mint(uint mintAmount) external returns (uint);\\n function redeem(uint redeemTokens) external returns (uint);\\n function redeemUnderlying(uint redeemAmount) external returns (uint);\\n function borrow(uint borrowAmount) external returns (uint);\\n function repayBorrow(uint repayAmount) external returns (uint);\\n function repayBorrowBehalf(address borrower, uint repayAmount) external returns (uint);\\n function liquidateBorrow(address borrower, uint repayAmount, CTokenInterface cTokenCollateral) external returns (uint);\\n\\n\\n /*** Admin Functions ***/\\n\\n function _addReserves(uint addAmount) external returns (uint);\\n}\\n\\ncontract CDelegationStorage {\\n /**\\n * @notice Implementation address for this contract\\n */\\n address public implementation;\\n}\\n\\ncontract CDelegatorInterface is CDelegationStorage {\\n /**\\n * @notice Emitted when implementation is changed\\n */\\n event NewImplementation(address oldImplementation, address newImplementation);\\n\\n /**\\n * @notice Called by the admin to update the implementation of the delegator\\n * @param implementation_ The address of the new implementation for delegation\\n * @param allowResign Flag to indicate whether to call _resignImplementation on the old implementation\\n * @param becomeImplementationData The encoded bytes data to be passed to _becomeImplementation\\n */\\n function _setImplementation(address implementation_, bool allowResign, bytes memory becomeImplementationData) public;\\n}\\n\\ncontract CDelegateInterface is CDelegationStorage {\\n /**\\n * @notice Called by the delegator on a delegate to initialize it for duty\\n * @dev Should revert if any issues arise which make it unfit for delegation\\n * @param data The encoded bytes data for any initialization\\n */\\n function _becomeImplementation(bytes memory data) public;\\n\\n /**\\n * @notice Called by the delegator on a delegate to forfeit its responsibility\\n */\\n function _resignImplementation() public;\\n}\\n\",\"keccak256\":\"0xbedd7a46507f6e249f4019c9cadf95d5e3af38fa914c9572a81f6d79c946bd66\"},\"contracts/CarefulMath.sol\":{\"content\":\"pragma solidity ^0.5.16;\\n\\n/**\\n * @title Careful Math\\n * @author Compound\\n * @notice Derived from OpenZeppelin's SafeMath library\\n * https://github.com/OpenZeppelin/openzeppelin-solidity/blob/master/contracts/math/SafeMath.sol\\n */\\ncontract CarefulMath {\\n\\n /**\\n * @dev Possible error codes that we can return\\n */\\n enum MathError {\\n NO_ERROR,\\n DIVISION_BY_ZERO,\\n INTEGER_OVERFLOW,\\n INTEGER_UNDERFLOW\\n }\\n\\n /**\\n * @dev Multiplies two numbers, returns an error on overflow.\\n */\\n function mulUInt(uint a, uint b) internal pure returns (MathError, uint) {\\n if (a == 0) {\\n return (MathError.NO_ERROR, 0);\\n }\\n\\n uint c = a * b;\\n\\n if (c / a != b) {\\n return (MathError.INTEGER_OVERFLOW, 0);\\n } else {\\n return (MathError.NO_ERROR, c);\\n }\\n }\\n\\n /**\\n * @dev Integer division of two numbers, truncating the quotient.\\n */\\n function divUInt(uint a, uint b) internal pure returns (MathError, uint) {\\n if (b == 0) {\\n return (MathError.DIVISION_BY_ZERO, 0);\\n }\\n\\n return (MathError.NO_ERROR, a / b);\\n }\\n\\n /**\\n * @dev Subtracts two numbers, returns an error on overflow (i.e. if subtrahend is greater than minuend).\\n */\\n function subUInt(uint a, uint b) internal pure returns (MathError, uint) {\\n if (b <= a) {\\n return (MathError.NO_ERROR, a - b);\\n } else {\\n return (MathError.INTEGER_UNDERFLOW, 0);\\n }\\n }\\n\\n /**\\n * @dev Adds two numbers, returns an error on overflow.\\n */\\n function addUInt(uint a, uint b) internal pure returns (MathError, uint) {\\n uint c = a + b;\\n\\n if (c >= a) {\\n return (MathError.NO_ERROR, c);\\n } else {\\n return (MathError.INTEGER_OVERFLOW, 0);\\n }\\n }\\n\\n /**\\n * @dev add a and b and then subtract c\\n */\\n function addThenSubUInt(uint a, uint b, uint c) internal pure returns (MathError, uint) {\\n (MathError err0, uint sum) = addUInt(a, b);\\n\\n if (err0 != MathError.NO_ERROR) {\\n return (err0, 0);\\n }\\n\\n return subUInt(sum, c);\\n }\\n}\",\"keccak256\":\"0x0647348f27e41d22555d99eebd217dee02a4d737df6accd7cce5347a7487c7de\"},\"contracts/ComptrollerInterface.sol\":{\"content\":\"pragma solidity ^0.5.16;\\n\\ncontract ComptrollerInterface {\\n /// @notice Indicator that this is a Comptroller contract (for inspection)\\n bool public constant isComptroller = true;\\n\\n /*** Assets You Are In ***/\\n\\n function enterMarkets(address[] calldata cTokens) external returns (uint[] memory);\\n function exitMarket(address cToken) external returns (uint);\\n\\n /*** Policy Hooks ***/\\n\\n function mintAllowed(address cToken, address minter, uint mintAmount) external returns (uint);\\n function mintVerify(address cToken, address minter, uint mintAmount, uint mintTokens) external;\\n\\n function redeemAllowed(address cToken, address redeemer, uint redeemTokens) external returns (uint);\\n function redeemVerify(address cToken, address redeemer, uint redeemAmount, uint redeemTokens) external;\\n\\n function borrowAllowed(address cToken, address borrower, uint borrowAmount) external returns (uint);\\n function borrowVerify(address cToken, address borrower, uint borrowAmount) external;\\n\\n function repayBorrowAllowed(\\n address cToken,\\n address payer,\\n address borrower,\\n uint repayAmount) external returns (uint);\\n function repayBorrowVerify(\\n address cToken,\\n address payer,\\n address borrower,\\n uint repayAmount,\\n uint borrowerIndex) external;\\n\\n function liquidateBorrowAllowed(\\n address cTokenBorrowed,\\n address cTokenCollateral,\\n address liquidator,\\n address borrower,\\n uint repayAmount) external returns (uint);\\n function liquidateBorrowVerify(\\n address cTokenBorrowed,\\n address cTokenCollateral,\\n address liquidator,\\n address borrower,\\n uint repayAmount,\\n uint seizeTokens) external;\\n\\n function seizeAllowed(\\n address cTokenCollateral,\\n address cTokenBorrowed,\\n address liquidator,\\n address borrower,\\n uint seizeTokens) external returns (uint);\\n function seizeVerify(\\n address cTokenCollateral,\\n address cTokenBorrowed,\\n address liquidator,\\n address borrower,\\n uint seizeTokens) external;\\n\\n function transferAllowed(address cToken, address src, address dst, uint transferTokens) external returns (uint);\\n function transferVerify(address cToken, address src, address dst, uint transferTokens) external;\\n\\n /*** Liquidity/Liquidation Calculations ***/\\n\\n function liquidateCalculateSeizeTokens(\\n address cTokenBorrowed,\\n address cTokenCollateral,\\n uint repayAmount) external view returns (uint, uint);\\n}\\n\",\"keccak256\":\"0xede7670d2dd7b25d0187aecd2c28b7b5ca7d7c1bdac144fbedecf5d4bdd92a6b\"},\"contracts/EIP20Interface.sol\":{\"content\":\"pragma solidity ^0.5.16;\\n\\n/**\\n * @title ERC 20 Token Standard Interface\\n * https://eips.ethereum.org/EIPS/eip-20\\n */\\ninterface EIP20Interface {\\n function name() external view returns (string memory);\\n function symbol() external view returns (string memory);\\n function decimals() external view returns (uint8);\\n\\n /**\\n * @notice Get the total number of tokens in circulation\\n * @return The supply of tokens\\n */\\n function totalSupply() external view returns (uint256);\\n\\n /**\\n * @notice Gets the balance of the specified address\\n * @param owner The address from which the balance will be retrieved\\n * @return The balance\\n */\\n function balanceOf(address owner) external view returns (uint256 balance);\\n\\n /**\\n * @notice Transfer `amount` tokens from `msg.sender` to `dst`\\n * @param dst The address of the destination account\\n * @param amount The number of tokens to transfer\\n * @return Whether or not the transfer succeeded\\n */\\n function transfer(address dst, uint256 amount) external returns (bool success);\\n\\n /**\\n * @notice Transfer `amount` tokens from `src` to `dst`\\n * @param src The address of the source account\\n * @param dst The address of the destination account\\n * @param amount The number of tokens to transfer\\n * @return Whether or not the transfer succeeded\\n */\\n function transferFrom(address src, address dst, uint256 amount) external returns (bool success);\\n\\n /**\\n * @notice Approve `spender` to transfer up to `amount` from `src`\\n * @dev This will overwrite the approval amount for `spender`\\n * and is subject to issues noted [here](https://eips.ethereum.org/EIPS/eip-20#approve)\\n * @param spender The address of the account which may transfer tokens\\n * @param amount The number of tokens that are approved (-1 means infinite)\\n * @return Whether or not the approval succeeded\\n */\\n function approve(address spender, uint256 amount) external returns (bool success);\\n\\n /**\\n * @notice Get the current allowance from `owner` for `spender`\\n * @param owner The address of the account which owns the tokens to be spent\\n * @param spender The address of the account which may transfer tokens\\n * @return The number of tokens allowed to be spent (-1 means infinite)\\n */\\n function allowance(address owner, address spender) external view returns (uint256 remaining);\\n\\n event Transfer(address indexed from, address indexed to, uint256 amount);\\n event Approval(address indexed owner, address indexed spender, uint256 amount);\\n}\\n\",\"keccak256\":\"0xfd8ed2eac6d0b4d9ee6b32628ba68bae17544b66f190a5f7ce0c6ad024579dc8\"},\"contracts/EIP20NonStandardInterface.sol\":{\"content\":\"pragma solidity ^0.5.16;\\n\\n/**\\n * @title EIP20NonStandardInterface\\n * @dev Version of ERC20 with no return values for `transfer` and `transferFrom`\\n * See https://medium.com/coinmonks/missing-return-value-bug-at-least-130-tokens-affected-d67bf08521ca\\n */\\ninterface EIP20NonStandardInterface {\\n\\n /**\\n * @notice Get the total number of tokens in circulation\\n * @return The supply of tokens\\n */\\n function totalSupply() external view returns (uint256);\\n\\n /**\\n * @notice Gets the balance of the specified address\\n * @param owner The address from which the balance will be retrieved\\n * @return The balance\\n */\\n function balanceOf(address owner) external view returns (uint256 balance);\\n\\n ///\\n /// !!!!!!!!!!!!!!\\n /// !!! NOTICE !!! `transfer` does not return a value, in violation of the ERC-20 specification\\n /// !!!!!!!!!!!!!!\\n ///\\n\\n /**\\n * @notice Transfer `amount` tokens from `msg.sender` to `dst`\\n * @param dst The address of the destination account\\n * @param amount The number of tokens to transfer\\n */\\n function transfer(address dst, uint256 amount) external;\\n\\n ///\\n /// !!!!!!!!!!!!!!\\n /// !!! NOTICE !!! `transferFrom` does not return a value, in violation of the ERC-20 specification\\n /// !!!!!!!!!!!!!!\\n ///\\n\\n /**\\n * @notice Transfer `amount` tokens from `src` to `dst`\\n * @param src The address of the source account\\n * @param dst The address of the destination account\\n * @param amount The number of tokens to transfer\\n */\\n function transferFrom(address src, address dst, uint256 amount) external;\\n\\n /**\\n * @notice Approve `spender` to transfer up to `amount` from `src`\\n * @dev This will overwrite the approval amount for `spender`\\n * and is subject to issues noted [here](https://eips.ethereum.org/EIPS/eip-20#approve)\\n * @param spender The address of the account which may transfer tokens\\n * @param amount The number of tokens that are approved\\n * @return Whether or not the approval succeeded\\n */\\n function approve(address spender, uint256 amount) external returns (bool success);\\n\\n /**\\n * @notice Get the current allowance from `owner` for `spender`\\n * @param owner The address of the account which owns the tokens to be spent\\n * @param spender The address of the account which may transfer tokens\\n * @return The number of tokens allowed to be spent\\n */\\n function allowance(address owner, address spender) external view returns (uint256 remaining);\\n\\n event Transfer(address indexed from, address indexed to, uint256 amount);\\n event Approval(address indexed owner, address indexed spender, uint256 amount);\\n}\\n\",\"keccak256\":\"0x9719f12e4b80b51147ac195553a198cf8b0c516e7e4d04fc324a23ed15cbafb2\"},\"contracts/ERC20.sol\":{\"content\":\"pragma solidity ^0.5.16;\\n\\nimport \\\"./SafeMath.sol\\\";\\n\\ncontract ERC20 {\\n using SafeMath for uint;\\n\\n string public name;\\n string public symbol;\\n uint8 public decimals;\\n uint public totalSupply;\\n address public operator;\\n address public pendingOperator;\\n mapping(address => uint) public balanceOf;\\n mapping(address => mapping(address => uint)) public allowance;\\n mapping (address => bool) public minters;\\n\\n bytes32 public DOMAIN_SEPARATOR;\\n // keccak256(\\\"Permit(address owner,address spender,uint256 value,uint256 nonce,uint256 deadline)\\\");\\n bytes32 public constant PERMIT_TYPEHASH = 0x6e71edae12b1b97f4d1f60370fef10105fa2faae0126114a169c64845d6126c9;\\n mapping(address => uint) public nonces;\\n\\n event Approval(address indexed owner, address indexed spender, uint value);\\n event Transfer(address indexed from, address indexed to, uint value);\\n event AddMinter(address indexed minter);\\n event RemoveMinter(address indexed minter);\\n event ChangeOperator(address indexed newOperator);\\n\\n modifier onlyOperator {\\n require(msg.sender == operator, \\\"ONLY OPERATOR\\\");\\n _;\\n }\\n\\n constructor(string memory name_, string memory symbol_, uint8 decimals_) public {\\n name = name_;\\n symbol = symbol_;\\n decimals = decimals_;\\n operator = msg.sender;\\n uint chainId;\\n assembly {\\n chainId := chainid\\n }\\n DOMAIN_SEPARATOR = keccak256(\\n abi.encode(\\n keccak256('EIP712Domain(string name,string version,uint256 chainId,address verifyingContract)'),\\n keccak256(bytes(name)),\\n keccak256(bytes('1')),\\n chainId,\\n address(this)\\n )\\n );\\n }\\n\\n function setPendingOperator(address newOperator_) public onlyOperator {\\n pendingOperator = newOperator_;\\n }\\n\\n function claimOperator() public {\\n require(msg.sender == pendingOperator, \\\"ONLY PENDING OPERATOR\\\");\\n operator = pendingOperator;\\n pendingOperator = address(0);\\n emit ChangeOperator(operator);\\n }\\n\\n function addMinter(address minter_) public onlyOperator {\\n minters[minter_] = true;\\n emit AddMinter(minter_);\\n }\\n\\n function removeMinter(address minter_) public onlyOperator {\\n minters[minter_] = false;\\n emit RemoveMinter(minter_);\\n }\\n\\n function mint(address to, uint amount) public {\\n require(minters[msg.sender] == true || msg.sender == operator, \\\"ONLY MINTERS OR OPERATOR\\\");\\n _mint(to, amount);\\n }\\n\\n function burn(uint amount) public {\\n _burn(msg.sender, amount);\\n }\\n\\n function _mint(address to, uint value) internal {\\n totalSupply = totalSupply.add(value);\\n balanceOf[to] = balanceOf[to].add(value);\\n emit Transfer(address(0), to, value);\\n }\\n\\n function _burn(address from, uint value) internal {\\n balanceOf[from] = balanceOf[from].sub(value);\\n totalSupply = totalSupply.sub(value);\\n emit Transfer(from, address(0), value);\\n }\\n\\n function _approve(address owner, address spender, uint value) private {\\n allowance[owner][spender] = value;\\n emit Approval(owner, spender, value);\\n }\\n\\n function _transfer(address from, address to, uint value) private {\\n balanceOf[from] = balanceOf[from].sub(value);\\n balanceOf[to] = balanceOf[to].add(value);\\n emit Transfer(from, to, value);\\n }\\n\\n function approve(address spender, uint value) external returns (bool) {\\n _approve(msg.sender, spender, value);\\n return true;\\n }\\n\\n function transfer(address to, uint value) external returns (bool) {\\n _transfer(msg.sender, to, value);\\n return true;\\n }\\n\\n function transferFrom(address from, address to, uint value) external returns (bool) {\\n if (allowance[from][msg.sender] != uint(-1)) {\\n allowance[from][msg.sender] = allowance[from][msg.sender].sub(value);\\n }\\n _transfer(from, to, value);\\n return true;\\n }\\n\\n function permit(address owner, address spender, uint value, uint deadline, uint8 v, bytes32 r, bytes32 s) external {\\n require(deadline >= block.timestamp, 'EXPIRED');\\n bytes32 digest = keccak256(\\n abi.encodePacked(\\n '\\\\x19\\\\x01',\\n DOMAIN_SEPARATOR,\\n keccak256(abi.encode(PERMIT_TYPEHASH, owner, spender, value, nonces[owner]++, deadline))\\n )\\n );\\n address recoveredAddress = ecrecover(digest, v, r, s);\\n require(recoveredAddress != address(0) && recoveredAddress == owner, 'INVALID_SIGNATURE');\\n _approve(owner, spender, value);\\n }\\n}\",\"keccak256\":\"0xbba3165ce28b590b23677791690cbf4956442d2f23bbc8b15fe2adfb80183745\"},\"contracts/ErrorReporter.sol\":{\"content\":\"pragma solidity ^0.5.16;\\n\\ncontract ComptrollerErrorReporter {\\n enum Error {\\n NO_ERROR,\\n UNAUTHORIZED,\\n COMPTROLLER_MISMATCH,\\n INSUFFICIENT_SHORTFALL,\\n INSUFFICIENT_LIQUIDITY,\\n INVALID_CLOSE_FACTOR,\\n INVALID_COLLATERAL_FACTOR,\\n INVALID_LIQUIDATION_INCENTIVE,\\n MARKET_NOT_ENTERED, // no longer possible\\n MARKET_NOT_LISTED,\\n MARKET_ALREADY_LISTED,\\n MATH_ERROR,\\n NONZERO_BORROW_BALANCE,\\n PRICE_ERROR,\\n REJECTION,\\n SNAPSHOT_ERROR,\\n TOO_MANY_ASSETS,\\n TOO_MUCH_REPAY\\n }\\n\\n enum FailureInfo {\\n ACCEPT_ADMIN_PENDING_ADMIN_CHECK,\\n ACCEPT_PENDING_IMPLEMENTATION_ADDRESS_CHECK,\\n EXIT_MARKET_BALANCE_OWED,\\n EXIT_MARKET_REJECTION,\\n SET_CLOSE_FACTOR_OWNER_CHECK,\\n SET_CLOSE_FACTOR_VALIDATION,\\n SET_COLLATERAL_FACTOR_OWNER_CHECK,\\n SET_COLLATERAL_FACTOR_NO_EXISTS,\\n SET_COLLATERAL_FACTOR_VALIDATION,\\n SET_COLLATERAL_FACTOR_WITHOUT_PRICE,\\n SET_IMPLEMENTATION_OWNER_CHECK,\\n SET_LIQUIDATION_INCENTIVE_OWNER_CHECK,\\n SET_LIQUIDATION_INCENTIVE_VALIDATION,\\n SET_MAX_ASSETS_OWNER_CHECK,\\n SET_PENDING_ADMIN_OWNER_CHECK,\\n SET_PENDING_IMPLEMENTATION_OWNER_CHECK,\\n SET_PRICE_ORACLE_OWNER_CHECK,\\n SUPPORT_MARKET_EXISTS,\\n SUPPORT_MARKET_OWNER_CHECK,\\n SET_PAUSE_GUARDIAN_OWNER_CHECK\\n }\\n\\n /**\\n * @dev `error` corresponds to enum Error; `info` corresponds to enum FailureInfo, and `detail` is an arbitrary\\n * contract-specific code that enables us to report opaque error codes from upgradeable contracts.\\n **/\\n event Failure(uint error, uint info, uint detail);\\n\\n /**\\n * @dev use this when reporting a known error from the money market or a non-upgradeable collaborator\\n */\\n function fail(Error err, FailureInfo info) internal returns (uint) {\\n emit Failure(uint(err), uint(info), 0);\\n\\n return uint(err);\\n }\\n\\n /**\\n * @dev use this when reporting an opaque error from an upgradeable collaborator contract\\n */\\n function failOpaque(Error err, FailureInfo info, uint opaqueError) internal returns (uint) {\\n emit Failure(uint(err), uint(info), opaqueError);\\n\\n return uint(err);\\n }\\n}\\n\\ncontract TokenErrorReporter {\\n enum Error {\\n NO_ERROR,\\n UNAUTHORIZED,\\n BAD_INPUT,\\n COMPTROLLER_REJECTION,\\n COMPTROLLER_CALCULATION_ERROR,\\n INTEREST_RATE_MODEL_ERROR,\\n INVALID_ACCOUNT_PAIR,\\n INVALID_CLOSE_AMOUNT_REQUESTED,\\n INVALID_COLLATERAL_FACTOR,\\n MATH_ERROR,\\n MARKET_NOT_FRESH,\\n MARKET_NOT_LISTED,\\n TOKEN_INSUFFICIENT_ALLOWANCE,\\n TOKEN_INSUFFICIENT_BALANCE,\\n TOKEN_INSUFFICIENT_CASH,\\n TOKEN_TRANSFER_IN_FAILED,\\n TOKEN_TRANSFER_OUT_FAILED\\n }\\n\\n /*\\n * Note: FailureInfo (but not Error) is kept in alphabetical order\\n * This is because FailureInfo grows significantly faster, and\\n * the order of Error has some meaning, while the order of FailureInfo\\n * is entirely arbitrary.\\n */\\n enum FailureInfo {\\n ACCEPT_ADMIN_PENDING_ADMIN_CHECK,\\n ACCRUE_INTEREST_ACCUMULATED_INTEREST_CALCULATION_FAILED,\\n ACCRUE_INTEREST_BORROW_RATE_CALCULATION_FAILED,\\n ACCRUE_INTEREST_NEW_BORROW_INDEX_CALCULATION_FAILED,\\n ACCRUE_INTEREST_NEW_TOTAL_BORROWS_CALCULATION_FAILED,\\n ACCRUE_INTEREST_NEW_TOTAL_RESERVES_CALCULATION_FAILED,\\n ACCRUE_INTEREST_SIMPLE_INTEREST_FACTOR_CALCULATION_FAILED,\\n BORROW_ACCUMULATED_BALANCE_CALCULATION_FAILED,\\n BORROW_ACCRUE_INTEREST_FAILED,\\n BORROW_CASH_NOT_AVAILABLE,\\n BORROW_FRESHNESS_CHECK,\\n BORROW_NEW_TOTAL_BALANCE_CALCULATION_FAILED,\\n BORROW_NEW_ACCOUNT_BORROW_BALANCE_CALCULATION_FAILED,\\n BORROW_MARKET_NOT_LISTED,\\n BORROW_COMPTROLLER_REJECTION,\\n LIQUIDATE_ACCRUE_BORROW_INTEREST_FAILED,\\n LIQUIDATE_ACCRUE_COLLATERAL_INTEREST_FAILED,\\n LIQUIDATE_COLLATERAL_FRESHNESS_CHECK,\\n LIQUIDATE_COMPTROLLER_REJECTION,\\n LIQUIDATE_COMPTROLLER_CALCULATE_AMOUNT_SEIZE_FAILED,\\n LIQUIDATE_CLOSE_AMOUNT_IS_UINT_MAX,\\n LIQUIDATE_CLOSE_AMOUNT_IS_ZERO,\\n LIQUIDATE_FRESHNESS_CHECK,\\n LIQUIDATE_LIQUIDATOR_IS_BORROWER,\\n LIQUIDATE_REPAY_BORROW_FRESH_FAILED,\\n LIQUIDATE_SEIZE_BALANCE_INCREMENT_FAILED,\\n LIQUIDATE_SEIZE_BALANCE_DECREMENT_FAILED,\\n LIQUIDATE_SEIZE_COMPTROLLER_REJECTION,\\n LIQUIDATE_SEIZE_LIQUIDATOR_IS_BORROWER,\\n LIQUIDATE_SEIZE_TOO_MUCH,\\n MINT_ACCRUE_INTEREST_FAILED,\\n MINT_COMPTROLLER_REJECTION,\\n MINT_EXCHANGE_CALCULATION_FAILED,\\n MINT_EXCHANGE_RATE_READ_FAILED,\\n MINT_FRESHNESS_CHECK,\\n MINT_NEW_ACCOUNT_BALANCE_CALCULATION_FAILED,\\n MINT_NEW_TOTAL_SUPPLY_CALCULATION_FAILED,\\n MINT_TRANSFER_IN_FAILED,\\n MINT_TRANSFER_IN_NOT_POSSIBLE,\\n REDEEM_ACCRUE_INTEREST_FAILED,\\n REDEEM_COMPTROLLER_REJECTION,\\n REDEEM_EXCHANGE_TOKENS_CALCULATION_FAILED,\\n REDEEM_EXCHANGE_AMOUNT_CALCULATION_FAILED,\\n REDEEM_EXCHANGE_RATE_READ_FAILED,\\n REDEEM_FRESHNESS_CHECK,\\n REDEEM_NEW_ACCOUNT_BALANCE_CALCULATION_FAILED,\\n REDEEM_NEW_TOTAL_SUPPLY_CALCULATION_FAILED,\\n REDEEM_TRANSFER_OUT_NOT_POSSIBLE,\\n REDUCE_RESERVES_ACCRUE_INTEREST_FAILED,\\n REDUCE_RESERVES_ADMIN_CHECK,\\n REDUCE_RESERVES_CASH_NOT_AVAILABLE,\\n REDUCE_RESERVES_FRESH_CHECK,\\n REDUCE_RESERVES_VALIDATION,\\n REPAY_BEHALF_ACCRUE_INTEREST_FAILED,\\n REPAY_BORROW_ACCRUE_INTEREST_FAILED,\\n REPAY_BORROW_ACCUMULATED_BALANCE_CALCULATION_FAILED,\\n REPAY_BORROW_COMPTROLLER_REJECTION,\\n REPAY_BORROW_FRESHNESS_CHECK,\\n REPAY_BORROW_NEW_ACCOUNT_BORROW_BALANCE_CALCULATION_FAILED,\\n REPAY_BORROW_NEW_TOTAL_BALANCE_CALCULATION_FAILED,\\n REPAY_BORROW_TRANSFER_IN_NOT_POSSIBLE,\\n SET_COLLATERAL_FACTOR_OWNER_CHECK,\\n SET_COLLATERAL_FACTOR_VALIDATION,\\n SET_COMPTROLLER_OWNER_CHECK,\\n SET_INTEREST_RATE_MODEL_ACCRUE_INTEREST_FAILED,\\n SET_INTEREST_RATE_MODEL_FRESH_CHECK,\\n SET_INTEREST_RATE_MODEL_OWNER_CHECK,\\n SET_MAX_ASSETS_OWNER_CHECK,\\n SET_ORACLE_MARKET_NOT_LISTED,\\n SET_PENDING_ADMIN_OWNER_CHECK,\\n SET_RESERVE_FACTOR_ACCRUE_INTEREST_FAILED,\\n SET_RESERVE_FACTOR_ADMIN_CHECK,\\n SET_RESERVE_FACTOR_FRESH_CHECK,\\n SET_RESERVE_FACTOR_BOUNDS_CHECK,\\n TRANSFER_COMPTROLLER_REJECTION,\\n TRANSFER_NOT_ALLOWED,\\n TRANSFER_NOT_ENOUGH,\\n TRANSFER_TOO_MUCH,\\n ADD_RESERVES_ACCRUE_INTEREST_FAILED,\\n ADD_RESERVES_FRESH_CHECK,\\n ADD_RESERVES_TRANSFER_IN_NOT_POSSIBLE\\n }\\n\\n /**\\n * @dev `error` corresponds to enum Error; `info` corresponds to enum FailureInfo, and `detail` is an arbitrary\\n * contract-specific code that enables us to report opaque error codes from upgradeable contracts.\\n **/\\n event Failure(uint error, uint info, uint detail);\\n\\n /**\\n * @dev use this when reporting a known error from the money market or a non-upgradeable collaborator\\n */\\n function fail(Error err, FailureInfo info) internal returns (uint) {\\n emit Failure(uint(err), uint(info), 0);\\n\\n return uint(err);\\n }\\n\\n /**\\n * @dev use this when reporting an opaque error from an upgradeable collaborator contract\\n */\\n function failOpaque(Error err, FailureInfo info, uint opaqueError) internal returns (uint) {\\n emit Failure(uint(err), uint(info), opaqueError);\\n\\n return uint(err);\\n }\\n}\",\"keccak256\":\"0x5179afb1071c0fd555e5c1f1d2565f72dbe1740cc3dd02f6e52037f150afc5c9\"},\"contracts/Exponential.sol\":{\"content\":\"pragma solidity ^0.5.16;\\n\\nimport \\\"./CarefulMath.sol\\\";\\nimport \\\"./ExponentialNoError.sol\\\";\\n\\n/**\\n * @title Exponential module for storing fixed-precision decimals\\n * @author Compound\\n * @dev Legacy contract for compatibility reasons with existing contracts that still use MathError\\n * @notice Exp is a struct which stores decimals with a fixed precision of 18 decimal places.\\n * Thus, if we wanted to store the 5.1, mantissa would store 5.1e18. That is:\\n * `Exp({mantissa: 5100000000000000000})`.\\n */\\ncontract Exponential is CarefulMath, ExponentialNoError {\\n /**\\n * @dev Creates an exponential from numerator and denominator values.\\n * Note: Returns an error if (`num` * 10e18) > MAX_INT,\\n * or if `denom` is zero.\\n */\\n function getExp(uint num, uint denom) pure internal returns (MathError, Exp memory) {\\n (MathError err0, uint scaledNumerator) = mulUInt(num, expScale);\\n if (err0 != MathError.NO_ERROR) {\\n return (err0, Exp({mantissa: 0}));\\n }\\n\\n (MathError err1, uint rational) = divUInt(scaledNumerator, denom);\\n if (err1 != MathError.NO_ERROR) {\\n return (err1, Exp({mantissa: 0}));\\n }\\n\\n return (MathError.NO_ERROR, Exp({mantissa: rational}));\\n }\\n\\n /**\\n * @dev Adds two exponentials, returning a new exponential.\\n */\\n function addExp(Exp memory a, Exp memory b) pure internal returns (MathError, Exp memory) {\\n (MathError error, uint result) = addUInt(a.mantissa, b.mantissa);\\n\\n return (error, Exp({mantissa: result}));\\n }\\n\\n /**\\n * @dev Subtracts two exponentials, returning a new exponential.\\n */\\n function subExp(Exp memory a, Exp memory b) pure internal returns (MathError, Exp memory) {\\n (MathError error, uint result) = subUInt(a.mantissa, b.mantissa);\\n\\n return (error, Exp({mantissa: result}));\\n }\\n\\n /**\\n * @dev Multiply an Exp by a scalar, returning a new Exp.\\n */\\n function mulScalar(Exp memory a, uint scalar) pure internal returns (MathError, Exp memory) {\\n (MathError err0, uint scaledMantissa) = mulUInt(a.mantissa, scalar);\\n if (err0 != MathError.NO_ERROR) {\\n return (err0, Exp({mantissa: 0}));\\n }\\n\\n return (MathError.NO_ERROR, Exp({mantissa: scaledMantissa}));\\n }\\n\\n /**\\n * @dev Multiply an Exp by a scalar, then truncate to return an unsigned integer.\\n */\\n function mulScalarTruncate(Exp memory a, uint scalar) pure internal returns (MathError, uint) {\\n (MathError err, Exp memory product) = mulScalar(a, scalar);\\n if (err != MathError.NO_ERROR) {\\n return (err, 0);\\n }\\n\\n return (MathError.NO_ERROR, truncate(product));\\n }\\n\\n /**\\n * @dev Multiply an Exp by a scalar, truncate, then add an to an unsigned integer, returning an unsigned integer.\\n */\\n function mulScalarTruncateAddUInt(Exp memory a, uint scalar, uint addend) pure internal returns (MathError, uint) {\\n (MathError err, Exp memory product) = mulScalar(a, scalar);\\n if (err != MathError.NO_ERROR) {\\n return (err, 0);\\n }\\n\\n return addUInt(truncate(product), addend);\\n }\\n\\n /**\\n * @dev Divide an Exp by a scalar, returning a new Exp.\\n */\\n function divScalar(Exp memory a, uint scalar) pure internal returns (MathError, Exp memory) {\\n (MathError err0, uint descaledMantissa) = divUInt(a.mantissa, scalar);\\n if (err0 != MathError.NO_ERROR) {\\n return (err0, Exp({mantissa: 0}));\\n }\\n\\n return (MathError.NO_ERROR, Exp({mantissa: descaledMantissa}));\\n }\\n\\n /**\\n * @dev Divide a scalar by an Exp, returning a new Exp.\\n */\\n function divScalarByExp(uint scalar, Exp memory divisor) pure internal returns (MathError, Exp memory) {\\n /*\\n We are doing this as:\\n getExp(mulUInt(expScale, scalar), divisor.mantissa)\\n\\n How it works:\\n Exp = a / b;\\n Scalar = s;\\n `s / (a / b)` = `b * s / a` and since for an Exp `a = mantissa, b = expScale`\\n */\\n (MathError err0, uint numerator) = mulUInt(expScale, scalar);\\n if (err0 != MathError.NO_ERROR) {\\n return (err0, Exp({mantissa: 0}));\\n }\\n return getExp(numerator, divisor.mantissa);\\n }\\n\\n /**\\n * @dev Divide a scalar by an Exp, then truncate to return an unsigned integer.\\n */\\n function divScalarByExpTruncate(uint scalar, Exp memory divisor) pure internal returns (MathError, uint) {\\n (MathError err, Exp memory fraction) = divScalarByExp(scalar, divisor);\\n if (err != MathError.NO_ERROR) {\\n return (err, 0);\\n }\\n\\n return (MathError.NO_ERROR, truncate(fraction));\\n }\\n\\n /**\\n * @dev Multiplies two exponentials, returning a new exponential.\\n */\\n function mulExp(Exp memory a, Exp memory b) pure internal returns (MathError, Exp memory) {\\n\\n (MathError err0, uint doubleScaledProduct) = mulUInt(a.mantissa, b.mantissa);\\n if (err0 != MathError.NO_ERROR) {\\n return (err0, Exp({mantissa: 0}));\\n }\\n\\n // We add half the scale before dividing so that we get rounding instead of truncation.\\n // See \\\"Listing 6\\\" and text above it at https://accu.org/index.php/journals/1717\\n // Without this change, a result like 6.6...e-19 will be truncated to 0 instead of being rounded to 1e-18.\\n (MathError err1, uint doubleScaledProductWithHalfScale) = addUInt(halfExpScale, doubleScaledProduct);\\n if (err1 != MathError.NO_ERROR) {\\n return (err1, Exp({mantissa: 0}));\\n }\\n\\n (MathError err2, uint product) = divUInt(doubleScaledProductWithHalfScale, expScale);\\n // The only error `div` can return is MathError.DIVISION_BY_ZERO but we control `expScale` and it is not zero.\\n assert(err2 == MathError.NO_ERROR);\\n\\n return (MathError.NO_ERROR, Exp({mantissa: product}));\\n }\\n\\n /**\\n * @dev Multiplies two exponentials given their mantissas, returning a new exponential.\\n */\\n function mulExp(uint a, uint b) pure internal returns (MathError, Exp memory) {\\n return mulExp(Exp({mantissa: a}), Exp({mantissa: b}));\\n }\\n\\n /**\\n * @dev Multiplies three exponentials, returning a new exponential.\\n */\\n function mulExp3(Exp memory a, Exp memory b, Exp memory c) pure internal returns (MathError, Exp memory) {\\n (MathError err, Exp memory ab) = mulExp(a, b);\\n if (err != MathError.NO_ERROR) {\\n return (err, ab);\\n }\\n return mulExp(ab, c);\\n }\\n\\n /**\\n * @dev Divides two exponentials, returning a new exponential.\\n * (a/scale) / (b/scale) = (a/scale) * (scale/b) = a/b,\\n * which we can scale as an Exp by calling getExp(a.mantissa, b.mantissa)\\n */\\n function divExp(Exp memory a, Exp memory b) pure internal returns (MathError, Exp memory) {\\n return getExp(a.mantissa, b.mantissa);\\n }\\n}\\n\",\"keccak256\":\"0x6ff054d65a0289dbb43c9f437d6909f9cf1207c9b8f984b3cb8e97a9de76a434\"},\"contracts/ExponentialNoError.sol\":{\"content\":\"pragma solidity ^0.5.16;\\n\\n/**\\n * @title Exponential module for storing fixed-precision decimals\\n * @author Compound\\n * @notice Exp is a struct which stores decimals with a fixed precision of 18 decimal places.\\n * Thus, if we wanted to store the 5.1, mantissa would store 5.1e18. That is:\\n * `Exp({mantissa: 5100000000000000000})`.\\n */\\ncontract ExponentialNoError {\\n uint constant expScale = 1e18;\\n uint constant doubleScale = 1e36;\\n uint constant halfExpScale = expScale/2;\\n uint constant mantissaOne = expScale;\\n\\n struct Exp {\\n uint mantissa;\\n }\\n\\n struct Double {\\n uint mantissa;\\n }\\n\\n /**\\n * @dev Truncates the given exp to a whole number value.\\n * For example, truncate(Exp{mantissa: 15 * expScale}) = 15\\n */\\n function truncate(Exp memory exp) pure internal returns (uint) {\\n // Note: We are not using careful math here as we're performing a division that cannot fail\\n return exp.mantissa / expScale;\\n }\\n\\n /**\\n * @dev Multiply an Exp by a scalar, then truncate to return an unsigned integer.\\n */\\n function mul_ScalarTruncate(Exp memory a, uint scalar) pure internal returns (uint) {\\n Exp memory product = mul_(a, scalar);\\n return truncate(product);\\n }\\n\\n /**\\n * @dev Multiply an Exp by a scalar, truncate, then add an to an unsigned integer, returning an unsigned integer.\\n */\\n function mul_ScalarTruncateAddUInt(Exp memory a, uint scalar, uint addend) pure internal returns (uint) {\\n Exp memory product = mul_(a, scalar);\\n return add_(truncate(product), addend);\\n }\\n\\n /**\\n * @dev Checks if first Exp is less than second Exp.\\n */\\n function lessThanExp(Exp memory left, Exp memory right) pure internal returns (bool) {\\n return left.mantissa < right.mantissa;\\n }\\n\\n /**\\n * @dev Checks if left Exp <= right Exp.\\n */\\n function lessThanOrEqualExp(Exp memory left, Exp memory right) pure internal returns (bool) {\\n return left.mantissa <= right.mantissa;\\n }\\n\\n /**\\n * @dev Checks if left Exp > right Exp.\\n */\\n function greaterThanExp(Exp memory left, Exp memory right) pure internal returns (bool) {\\n return left.mantissa > right.mantissa;\\n }\\n\\n /**\\n * @dev returns true if Exp is exactly zero\\n */\\n function isZeroExp(Exp memory value) pure internal returns (bool) {\\n return value.mantissa == 0;\\n }\\n\\n function safe224(uint n, string memory errorMessage) pure internal returns (uint224) {\\n require(n < 2**224, errorMessage);\\n return uint224(n);\\n }\\n\\n function safe32(uint n, string memory errorMessage) pure internal returns (uint32) {\\n require(n < 2**32, errorMessage);\\n return uint32(n);\\n }\\n\\n function add_(Exp memory a, Exp memory b) pure internal returns (Exp memory) {\\n return Exp({mantissa: add_(a.mantissa, b.mantissa)});\\n }\\n\\n function add_(Double memory a, Double memory b) pure internal returns (Double memory) {\\n return Double({mantissa: add_(a.mantissa, b.mantissa)});\\n }\\n\\n function add_(uint a, uint b) pure internal returns (uint) {\\n return add_(a, b, \\\"addition overflow\\\");\\n }\\n\\n function add_(uint a, uint b, string memory errorMessage) pure internal returns (uint) {\\n uint c = a + b;\\n require(c >= a, errorMessage);\\n return c;\\n }\\n\\n function sub_(Exp memory a, Exp memory b) pure internal returns (Exp memory) {\\n return Exp({mantissa: sub_(a.mantissa, b.mantissa)});\\n }\\n\\n function sub_(Double memory a, Double memory b) pure internal returns (Double memory) {\\n return Double({mantissa: sub_(a.mantissa, b.mantissa)});\\n }\\n\\n function sub_(uint a, uint b) pure internal returns (uint) {\\n return sub_(a, b, \\\"subtraction underflow\\\");\\n }\\n\\n function sub_(uint a, uint b, string memory errorMessage) pure internal returns (uint) {\\n require(b <= a, errorMessage);\\n return a - b;\\n }\\n\\n function mul_(Exp memory a, Exp memory b) pure internal returns (Exp memory) {\\n return Exp({mantissa: mul_(a.mantissa, b.mantissa) / expScale});\\n }\\n\\n function mul_(Exp memory a, uint b) pure internal returns (Exp memory) {\\n return Exp({mantissa: mul_(a.mantissa, b)});\\n }\\n\\n function mul_(uint a, Exp memory b) pure internal returns (uint) {\\n return mul_(a, b.mantissa) / expScale;\\n }\\n\\n function mul_(Double memory a, Double memory b) pure internal returns (Double memory) {\\n return Double({mantissa: mul_(a.mantissa, b.mantissa) / doubleScale});\\n }\\n\\n function mul_(Double memory a, uint b) pure internal returns (Double memory) {\\n return Double({mantissa: mul_(a.mantissa, b)});\\n }\\n\\n function mul_(uint a, Double memory b) pure internal returns (uint) {\\n return mul_(a, b.mantissa) / doubleScale;\\n }\\n\\n function mul_(uint a, uint b) pure internal returns (uint) {\\n return mul_(a, b, \\\"multiplication overflow\\\");\\n }\\n\\n function mul_(uint a, uint b, string memory errorMessage) pure internal returns (uint) {\\n if (a == 0 || b == 0) {\\n return 0;\\n }\\n uint c = a * b;\\n require(c / a == b, errorMessage);\\n return c;\\n }\\n\\n function div_(Exp memory a, Exp memory b) pure internal returns (Exp memory) {\\n return Exp({mantissa: div_(mul_(a.mantissa, expScale), b.mantissa)});\\n }\\n\\n function div_(Exp memory a, uint b) pure internal returns (Exp memory) {\\n return Exp({mantissa: div_(a.mantissa, b)});\\n }\\n\\n function div_(uint a, Exp memory b) pure internal returns (uint) {\\n return div_(mul_(a, expScale), b.mantissa);\\n }\\n\\n function div_(Double memory a, Double memory b) pure internal returns (Double memory) {\\n return Double({mantissa: div_(mul_(a.mantissa, doubleScale), b.mantissa)});\\n }\\n\\n function div_(Double memory a, uint b) pure internal returns (Double memory) {\\n return Double({mantissa: div_(a.mantissa, b)});\\n }\\n\\n function div_(uint a, Double memory b) pure internal returns (uint) {\\n return div_(mul_(a, doubleScale), b.mantissa);\\n }\\n\\n function div_(uint a, uint b) pure internal returns (uint) {\\n return div_(a, b, \\\"divide by zero\\\");\\n }\\n\\n function div_(uint a, uint b, string memory errorMessage) pure internal returns (uint) {\\n require(b > 0, errorMessage);\\n return a / b;\\n }\\n\\n function fraction(uint a, uint b) pure internal returns (Double memory) {\\n return Double({mantissa: div_(mul_(a, doubleScale), b)});\\n }\\n}\\n\",\"keccak256\":\"0x7cb184b7cee71a5e707053dfba7eebbd46f11974004028100510ccce19b6694d\"},\"contracts/Fed.sol\":{\"content\":\"pragma solidity ^0.5.16;\\n\\nimport \\\"./SafeMath.sol\\\";\\nimport \\\"./CErc20.sol\\\";\\nimport \\\"./ERC20.sol\\\";\\nimport \\\"./Exponential.sol\\\";\\n\\ncontract Fed {\\n using SafeMath for uint;\\n\\n CErc20 public ctoken;\\n ERC20 public underlying;\\n address public chair; // Fed Chair\\n address public gov;\\n uint public supply;\\n\\n event Expansion(uint amount);\\n event Contraction(uint amount);\\n\\n constructor(CErc20 ctoken_, address gov_) public {\\n ctoken = ctoken_;\\n underlying = ERC20(ctoken_.underlying());\\n underlying.approve(address(ctoken), uint(-1));\\n chair = msg.sender;\\n gov = gov_;\\n }\\n\\n function changeGov(address newGov_) public {\\n require(msg.sender == gov, \\\"ONLY GOV\\\");\\n gov = newGov_;\\n }\\n\\n function changeChair(address newChair_) public {\\n require(msg.sender == gov, \\\"ONLY GOV\\\");\\n chair = newChair_;\\n }\\n\\n function resign() public {\\n require(msg.sender == chair, \\\"ONLY CHAIR\\\");\\n chair = address(0);\\n }\\n\\n function expansion(uint amount) public {\\n require(msg.sender == chair, \\\"ONLY CHAIR\\\");\\n underlying.mint(address(this), amount);\\n require(ctoken.mint(amount) == 0, 'Supplying failed');\\n supply = supply.add(amount);\\n emit Expansion(amount);\\n }\\n\\n function contraction(uint amount) public {\\n require(msg.sender == chair, \\\"ONLY CHAIR\\\");\\n require(amount <= supply, \\\"AMOUNT TOO BIG\\\"); // can't burn profits\\n require(ctoken.redeemUnderlying(amount) == 0, \\\"Redeem failed\\\");\\n underlying.burn(amount);\\n supply = supply.sub(amount);\\n emit Contraction(amount);\\n }\\n\\n function takeProfit() public {\\n uint underlyingBalance = ctoken.balanceOfUnderlying(address(this));\\n uint profit = underlyingBalance.sub(supply);\\n if(profit > 0) {\\n require(ctoken.redeemUnderlying(profit) == 0, \\\"Redeem failed\\\");\\n underlying.transfer(gov, profit);\\n }\\n }\\n \\n}\",\"keccak256\":\"0xaed3e60a76811a6f9114a5fa38064d0fc8a638e85278d9c4c56f63e2b6c74480\"},\"contracts/InterestRateModel.sol\":{\"content\":\"pragma solidity ^0.5.16;\\n\\n/**\\n * @title Compound's InterestRateModel Interface\\n * @author Compound\\n */\\ncontract InterestRateModel {\\n /// @notice Indicator that this is an InterestRateModel contract (for inspection)\\n bool public constant isInterestRateModel = true;\\n\\n /**\\n * @notice Calculates the current borrow interest rate per block\\n * @param cash The total amount of cash the market has\\n * @param borrows The total amount of borrows the market has outstanding\\n * @param reserves The total amount of reserves the market has\\n * @return The borrow rate per block (as a percentage, and scaled by 1e18)\\n */\\n function getBorrowRate(uint cash, uint borrows, uint reserves) external view returns (uint);\\n\\n /**\\n * @notice Calculates the current supply interest rate per block\\n * @param cash The total amount of cash the market has\\n * @param borrows The total amount of borrows the market has outstanding\\n * @param reserves The total amount of reserves the market has\\n * @param reserveFactorMantissa The current reserve factor the market has\\n * @return The supply rate per block (as a percentage, and scaled by 1e18)\\n */\\n function getSupplyRate(uint cash, uint borrows, uint reserves, uint reserveFactorMantissa) external view returns (uint);\\n\\n}\\n\",\"keccak256\":\"0x929282d73c79e6d700ebe79f9fafc1e414b3848acff5a56d6740afd1dc908678\"},\"contracts/SafeMath.sol\":{\"content\":\"pragma solidity ^0.5.16;\\n\\n// From https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/contracts/math/Math.sol\\n// Subject to the MIT license.\\n\\n/**\\n * @dev Wrappers over Solidity's arithmetic operations with added overflow\\n * checks.\\n *\\n * Arithmetic operations in Solidity wrap on overflow. This can easily result\\n * in bugs, because programmers usually assume that an overflow raises an\\n * error, which is the standard behavior in high level programming languages.\\n * `SafeMath` restores this intuition by reverting the transaction when an\\n * operation overflows.\\n *\\n * Using this library instead of the unchecked operations eliminates an entire\\n * class of bugs, so it's recommended to use it always.\\n */\\nlibrary SafeMath {\\n /**\\n * @dev Returns the addition of two unsigned integers, reverting on overflow.\\n *\\n * Counterpart to Solidity's `+` operator.\\n *\\n * Requirements:\\n * - Addition cannot overflow.\\n */\\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\\n uint256 c = a + b;\\n require(c >= a, \\\"SafeMath: addition overflow\\\");\\n\\n return c;\\n }\\n\\n /**\\n * @dev Returns the addition of two unsigned integers, reverting with custom message on overflow.\\n *\\n * Counterpart to Solidity's `+` operator.\\n *\\n * Requirements:\\n * - Addition cannot overflow.\\n */\\n function add(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {\\n uint256 c = a + b;\\n require(c >= a, errorMessage);\\n\\n return c;\\n }\\n\\n /**\\n * @dev Returns the subtraction of two unsigned integers, reverting on underflow (when the result is negative).\\n *\\n * Counterpart to Solidity's `-` operator.\\n *\\n * Requirements:\\n * - Subtraction cannot underflow.\\n */\\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\\n return sub(a, b, \\\"SafeMath: subtraction underflow\\\");\\n }\\n\\n /**\\n * @dev Returns the subtraction of two unsigned integers, reverting with custom message on underflow (when the result is negative).\\n *\\n * Counterpart to Solidity's `-` operator.\\n *\\n * Requirements:\\n * - Subtraction cannot underflow.\\n */\\n function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {\\n require(b <= a, errorMessage);\\n uint256 c = a - b;\\n\\n return c;\\n }\\n\\n /**\\n * @dev Returns the multiplication of two unsigned integers, reverting on overflow.\\n *\\n * Counterpart to Solidity's `*` operator.\\n *\\n * Requirements:\\n * - Multiplication cannot overflow.\\n */\\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\\n // Gas optimization: this is cheaper than requiring 'a' not being zero, but the\\n // benefit is lost if 'b' is also tested.\\n // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522\\n if (a == 0) {\\n return 0;\\n }\\n\\n uint256 c = a * b;\\n require(c / a == b, \\\"SafeMath: multiplication overflow\\\");\\n\\n return c;\\n }\\n\\n /**\\n * @dev Returns the multiplication of two unsigned integers, reverting on overflow.\\n *\\n * Counterpart to Solidity's `*` operator.\\n *\\n * Requirements:\\n * - Multiplication cannot overflow.\\n */\\n function mul(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {\\n // Gas optimization: this is cheaper than requiring 'a' not being zero, but the\\n // benefit is lost if 'b' is also tested.\\n // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522\\n if (a == 0) {\\n return 0;\\n }\\n\\n uint256 c = a * b;\\n require(c / a == b, errorMessage);\\n\\n return c;\\n }\\n\\n /**\\n * @dev Returns the integer division of two unsigned integers.\\n * Reverts on division by zero. The result is rounded towards zero.\\n *\\n * Counterpart to Solidity's `/` operator. Note: this function uses a\\n * `revert` opcode (which leaves remaining gas untouched) while Solidity\\n * uses an invalid opcode to revert (consuming all remaining gas).\\n *\\n * Requirements:\\n * - The divisor cannot be zero.\\n */\\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\\n return div(a, b, \\\"SafeMath: division by zero\\\");\\n }\\n\\n /**\\n * @dev Returns the integer division of two unsigned integers.\\n * Reverts with custom message on division by zero. The result is rounded towards zero.\\n *\\n * Counterpart to Solidity's `/` operator. Note: this function uses a\\n * `revert` opcode (which leaves remaining gas untouched) while Solidity\\n * uses an invalid opcode to revert (consuming all remaining gas).\\n *\\n * Requirements:\\n * - The divisor cannot be zero.\\n */\\n function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {\\n // Solidity only automatically asserts when dividing by 0\\n require(b > 0, errorMessage);\\n uint256 c = a / b;\\n // assert(a == b * c + a % b); // There is no case in which this doesn't hold\\n\\n return c;\\n }\\n\\n /**\\n * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),\\n * Reverts when dividing by zero.\\n *\\n * Counterpart to Solidity's `%` operator. This function uses a `revert`\\n * opcode (which leaves remaining gas untouched) while Solidity uses an\\n * invalid opcode to revert (consuming all remaining gas).\\n *\\n * Requirements:\\n * - The divisor cannot be zero.\\n */\\n function mod(uint256 a, uint256 b) internal pure returns (uint256) {\\n return mod(a, b, \\\"SafeMath: modulo by zero\\\");\\n }\\n\\n /**\\n * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),\\n * Reverts with custom message when dividing by zero.\\n *\\n * Counterpart to Solidity's `%` operator. This function uses a `revert`\\n * opcode (which leaves remaining gas untouched) while Solidity uses an\\n * invalid opcode to revert (consuming all remaining gas).\\n *\\n * Requirements:\\n * - The divisor cannot be zero.\\n */\\n function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {\\n require(b != 0, errorMessage);\\n return a % b;\\n }\\n}\\n\",\"keccak256\":\"0x6653e37ff57a02b7b7f20199bb0fd5685756ced19a67f53328b42c9d2167ffd2\"}},\"version\":1}", "bytecode": 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diff --git a/deployments/mainnet/Fuse127-Fed.json b/deployments/mainnet/Fuse127-Fed.json new file mode 100644 index 000000000..28292fc59 --- /dev/null +++ b/deployments/mainnet/Fuse127-Fed.json @@ -0,0 +1,312 @@ +{ + "address": "0x5Fa92501106d7E4e8b4eF3c4d08112b6f306194C", + "abi": [ + { + "inputs": [ + { + "internalType": "contract CErc20", + "name": "ctoken_", + "type": "address" + }, + { + "internalType": "address", + "name": "gov_", + "type": "address" + } + ], + "payable": false, + "stateMutability": "nonpayable", + "type": "constructor" + }, + { + "anonymous": false, + "inputs": [ + { + "indexed": false, + "internalType": "uint256", + "name": "amount", + "type": "uint256" + } + ], + "name": "Contraction", + "type": "event" + }, + { + "anonymous": false, + "inputs": [ + { + "indexed": false, + "internalType": "uint256", + "name": "amount", + "type": "uint256" + } + ], + "name": "Expansion", + "type": "event" + }, + { + "constant": true, + "inputs": [], + "name": "chair", + "outputs": [ + { + "internalType": "address", + "name": "", + "type": "address" + } + ], + "payable": false, + "stateMutability": "view", + "type": "function" + }, + { + "constant": false, + "inputs": [ + { + "internalType": "address", + "name": "newChair_", + "type": "address" + } + ], + "name": "changeChair", + "outputs": [], + "payable": false, + "stateMutability": "nonpayable", + "type": "function" + }, + { + "constant": false, + "inputs": [ + { + "internalType": "address", + "name": "newGov_", + "type": "address" + } + ], + "name": "changeGov", + "outputs": [], + "payable": false, + "stateMutability": "nonpayable", + "type": "function" + }, + { + "constant": false, + "inputs": [ + { + "internalType": "uint256", + "name": "amount", + "type": "uint256" + } + ], + "name": "contraction", + "outputs": [], + "payable": false, + "stateMutability": "nonpayable", + "type": "function" + }, + { + "constant": true, + "inputs": [], + "name": "ctoken", + "outputs": [ + { + "internalType": "contract CErc20", + "name": "", + "type": "address" + } + ], + "payable": false, + "stateMutability": "view", + "type": "function" + }, + { + "constant": false, + "inputs": [ + { + "internalType": "uint256", + "name": "amount", + "type": "uint256" + } + ], + "name": "expansion", + "outputs": [], + "payable": false, + "stateMutability": "nonpayable", + "type": "function" + }, + { + "constant": true, + "inputs": [], + "name": "gov", + "outputs": [ + { + "internalType": "address", + "name": "", + "type": "address" + } + ], + "payable": false, + "stateMutability": "view", + "type": "function" + }, + { + "constant": false, + "inputs": [], + "name": "resign", + "outputs": [], + "payable": false, + "stateMutability": "nonpayable", + "type": "function" + }, + { + "constant": true, + "inputs": [], + "name": "supply", + "outputs": [ + { + "internalType": "uint256", + "name": "", + "type": "uint256" + } + ], + "payable": false, + "stateMutability": "view", + "type": "function" + }, + { + "constant": false, + "inputs": [], + "name": "takeProfit", + "outputs": [], + "payable": false, + "stateMutability": "nonpayable", + "type": "function" + }, + { + "constant": true, + "inputs": [], + "name": "underlying", + "outputs": [ + { + "internalType": "contract ERC20", + "name": "", + "type": "address" + } + ], + "payable": false, + "stateMutability": "view", + "type": "function" + } + ], + "transactionHash": "0x65037d2192e7f90e9227d06ac8006523c788fe336a000cbd1635ffc9a8d23785", + "receipt": { + "to": null, + "from": "0xfEEB7b1bc8229617e4fd1C431AB2E26aA0e5877D", + "contractAddress": "0x5Fa92501106d7E4e8b4eF3c4d08112b6f306194C", + "transactionIndex": 347, + "gasUsed": "783755", + "logsBloom": 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+ "0x0000000000000000000000005fa92501106d7e4e8b4ef3c4d08112b6f306194c", + "0x000000000000000000000000c1fb01415f08fbd71623aded6ac8ec74f974fdc1" + ], + "data": "0xffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff", + "logIndex": 465, + "blockHash": "0x3fa9372d5fa716d6c3f62de50d0c4839ebfa2176ee2e328d41099d21f050b1a3" + } + ], + "blockNumber": 14411854, + "cumulativeGasUsed": "22781658", + "status": 1, + "byzantium": true + }, + "args": [ + "0xC1Fb01415f08Fbd71623aded6Ac8ec74F974Fdc1", + "0xfEEB7b1bc8229617e4fd1C431AB2E26aA0e5877D" + ], + "solcInputHash": "f91912da5fadc7dce3430f4d2e6691b6", + "metadata": "{\"compiler\":{\"version\":\"0.5.16+commit.9c3226ce\"},\"language\":\"Solidity\",\"output\":{\"abi\":[{\"inputs\":[{\"internalType\":\"contract CErc20\",\"name\":\"ctoken_\",\"type\":\"address\"},{\"internalType\":\"address\",\"name\":\"gov_\",\"type\":\"address\"}],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"constructor\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"amount\",\"type\":\"uint256\"}],\"name\":\"Contraction\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"amount\",\"type\":\"uint256\"}],\"name\":\"Expansion\",\"type\":\"event\"},{\"constant\":true,\"inputs\":[],\"name\":\"chair\",\"outputs\":[{\"internalType\":\"address\",\"name\":\"\",\"type\":\"address\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"internalType\":\"address\",\"name\":\"newChair_\",\"type\":\"address\"}],\"name\":\"changeChair\",\"outputs\":[],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"internalType\":\"address\",\"name\":\"newGov_\",\"type\":\"address\"}],\"name\":\"changeGov\",\"outputs\":[],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"internalType\":\"uint256\",\"name\":\"amount\",\"type\":\"uint256\"}],\"name\":\"contraction\",\"outputs\":[],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[],\"name\":\"ctoken\",\"outputs\":[{\"internalType\":\"contract CErc20\",\"name\":\"\",\"type\":\"address\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"internalType\":\"uint256\",\"name\":\"amount\",\"type\":\"uint256\"}],\"name\":\"expansion\",\"outputs\":[],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[],\"name\":\"gov\",\"outputs\":[{\"internalType\":\"address\",\"name\":\"\",\"type\":\"address\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[],\"name\":\"resign\",\"outputs\":[],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[],\"name\":\"supply\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[],\"name\":\"takeProfit\",\"outputs\":[],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[],\"name\":\"underlying\",\"outputs\":[{\"internalType\":\"contract ERC20\",\"name\":\"\",\"type\":\"address\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"}],\"devdoc\":{\"methods\":{}},\"userdoc\":{\"methods\":{}}},\"settings\":{\"compilationTarget\":{\"contracts/Fed.sol\":\"Fed\"},\"evmVersion\":\"istanbul\",\"libraries\":{},\"metadata\":{\"useLiteralContent\":true},\"optimizer\":{\"enabled\":true,\"runs\":200},\"remappings\":[]},\"sources\":{\"contracts/CErc20.sol\":{\"content\":\"pragma solidity ^0.5.16;\\n\\nimport \\\"./CToken.sol\\\";\\n\\n/**\\n * @title Compound's CErc20 Contract\\n * @notice CTokens which wrap an EIP-20 underlying\\n * @author Compound\\n */\\ncontract CErc20 is CToken, CErc20Interface {\\n /**\\n * @notice Initialize the new money market\\n * @param underlying_ The address of the underlying asset\\n * @param comptroller_ The address of the Comptroller\\n * @param interestRateModel_ The address of the interest rate model\\n * @param initialExchangeRateMantissa_ The initial exchange rate, scaled by 1e18\\n * @param name_ ERC-20 name of this token\\n * @param symbol_ ERC-20 symbol of this token\\n * @param decimals_ ERC-20 decimal precision of this token\\n */\\n function initialize(address underlying_,\\n ComptrollerInterface comptroller_,\\n InterestRateModel interestRateModel_,\\n uint initialExchangeRateMantissa_,\\n string memory name_,\\n string memory symbol_,\\n uint8 decimals_) public {\\n // CToken initialize does the bulk of the work\\n super.initialize(comptroller_, interestRateModel_, initialExchangeRateMantissa_, name_, symbol_, decimals_);\\n\\n // Set underlying and sanity check it\\n underlying = underlying_;\\n EIP20Interface(underlying).totalSupply();\\n }\\n\\n /*** User Interface ***/\\n\\n /**\\n * @notice Sender supplies assets into the market and receives cTokens in exchange\\n * @dev Accrues interest whether or not the operation succeeds, unless reverted\\n * @param mintAmount The amount of the underlying asset to supply\\n * @return uint 0=success, otherwise a failure (see ErrorReporter.sol for details)\\n */\\n function mint(uint mintAmount) external returns (uint) {\\n (uint err,) = mintInternal(mintAmount);\\n return err;\\n }\\n\\n /**\\n * @notice Sender redeems cTokens in exchange for the underlying asset\\n * @dev Accrues interest whether or not the operation succeeds, unless reverted\\n * @param redeemTokens The number of cTokens to redeem into underlying\\n * @return uint 0=success, otherwise a failure (see ErrorReporter.sol for details)\\n */\\n function redeem(uint redeemTokens) external returns (uint) {\\n return redeemInternal(redeemTokens);\\n }\\n\\n /**\\n * @notice Sender redeems cTokens in exchange for a specified amount of underlying asset\\n * @dev Accrues interest whether or not the operation succeeds, unless reverted\\n * @param redeemAmount The amount of underlying to redeem\\n * @return uint 0=success, otherwise a failure (see ErrorReporter.sol for details)\\n */\\n function redeemUnderlying(uint redeemAmount) external returns (uint) {\\n return redeemUnderlyingInternal(redeemAmount);\\n }\\n\\n /**\\n * @notice Sender borrows assets from the protocol to their own address\\n * @param borrowAmount The amount of the underlying asset to borrow\\n * @return uint 0=success, otherwise a failure (see ErrorReporter.sol for details)\\n */\\n function borrow(uint borrowAmount) external returns (uint) {\\n return borrowInternal(borrowAmount);\\n }\\n\\n /**\\n * @notice Sender repays their own borrow\\n * @param repayAmount The amount to repay\\n * @return uint 0=success, otherwise a failure (see ErrorReporter.sol for details)\\n */\\n function repayBorrow(uint repayAmount) external returns (uint) {\\n (uint err,) = repayBorrowInternal(repayAmount);\\n return err;\\n }\\n\\n /**\\n * @notice Sender repays a borrow belonging to borrower\\n * @param borrower the account with the debt being payed off\\n * @param repayAmount The amount to repay\\n * @return uint 0=success, otherwise a failure (see ErrorReporter.sol for details)\\n */\\n function repayBorrowBehalf(address borrower, uint repayAmount) external returns (uint) {\\n (uint err,) = repayBorrowBehalfInternal(borrower, repayAmount);\\n return err;\\n }\\n\\n /**\\n * @notice The sender liquidates the borrowers collateral.\\n * The collateral seized is transferred to the liquidator.\\n * @param borrower The borrower of this cToken to be liquidated\\n * @param repayAmount The amount of the underlying borrowed asset to repay\\n * @param cTokenCollateral The market in which to seize collateral from the borrower\\n * @return uint 0=success, otherwise a failure (see ErrorReporter.sol for details)\\n */\\n function liquidateBorrow(address borrower, uint repayAmount, CTokenInterface cTokenCollateral) external returns (uint) {\\n (uint err,) = liquidateBorrowInternal(borrower, repayAmount, cTokenCollateral);\\n return err;\\n }\\n\\n /**\\n * @notice The sender adds to reserves.\\n * @param addAmount The amount fo underlying token to add as reserves\\n * @return uint 0=success, otherwise a failure (see ErrorReporter.sol for details)\\n */\\n function _addReserves(uint addAmount) external returns (uint) {\\n return _addReservesInternal(addAmount);\\n }\\n\\n /*** Safe Token ***/\\n\\n /**\\n * @notice Gets balance of this contract in terms of the underlying\\n * @dev This excludes the value of the current message, if any\\n * @return The quantity of underlying tokens owned by this contract\\n */\\n function getCashPrior() internal view returns (uint) {\\n EIP20Interface token = EIP20Interface(underlying);\\n return token.balanceOf(address(this));\\n }\\n\\n /**\\n * @dev Similar to EIP20 transfer, except it handles a False result from `transferFrom` and reverts in that case.\\n * This will revert due to insufficient balance or insufficient allowance.\\n * This function returns the actual amount received,\\n * which may be less than `amount` if there is a fee attached to the transfer.\\n *\\n * Note: This wrapper safely handles non-standard ERC-20 tokens that do not return a value.\\n * See here: https://medium.com/coinmonks/missing-return-value-bug-at-least-130-tokens-affected-d67bf08521ca\\n */\\n function doTransferIn(address from, uint amount) internal returns (uint) {\\n EIP20NonStandardInterface token = EIP20NonStandardInterface(underlying);\\n uint balanceBefore = EIP20Interface(underlying).balanceOf(address(this));\\n token.transferFrom(from, address(this), amount);\\n\\n bool success;\\n assembly {\\n switch returndatasize()\\n case 0 { // This is a non-standard ERC-20\\n success := not(0) // set success to true\\n }\\n case 32 { // This is a compliant ERC-20\\n returndatacopy(0, 0, 32)\\n success := mload(0) // Set `success = returndata` of external call\\n }\\n default { // This is an excessively non-compliant ERC-20, revert.\\n revert(0, 0)\\n }\\n }\\n require(success, \\\"TOKEN_TRANSFER_IN_FAILED\\\");\\n\\n // Calculate the amount that was *actually* transferred\\n uint balanceAfter = EIP20Interface(underlying).balanceOf(address(this));\\n require(balanceAfter >= balanceBefore, \\\"TOKEN_TRANSFER_IN_OVERFLOW\\\");\\n return balanceAfter - balanceBefore; // underflow already checked above, just subtract\\n }\\n\\n /**\\n * @dev Similar to EIP20 transfer, except it handles a False success from `transfer` and returns an explanatory\\n * error code rather than reverting. If caller has not called checked protocol's balance, this may revert due to\\n * insufficient cash held in this contract. If caller has checked protocol's balance prior to this call, and verified\\n * it is >= amount, this should not revert in normal conditions.\\n *\\n * Note: This wrapper safely handles non-standard ERC-20 tokens that do not return a value.\\n * See here: https://medium.com/coinmonks/missing-return-value-bug-at-least-130-tokens-affected-d67bf08521ca\\n */\\n function doTransferOut(address payable to, uint amount) internal {\\n EIP20NonStandardInterface token = EIP20NonStandardInterface(underlying);\\n token.transfer(to, amount);\\n\\n bool success;\\n assembly {\\n switch returndatasize()\\n case 0 { // This is a non-standard ERC-20\\n success := not(0) // set success to true\\n }\\n case 32 { // This is a complaint ERC-20\\n returndatacopy(0, 0, 32)\\n success := mload(0) // Set `success = returndata` of external call\\n }\\n default { // This is an excessively non-compliant ERC-20, revert.\\n revert(0, 0)\\n }\\n }\\n require(success, \\\"TOKEN_TRANSFER_OUT_FAILED\\\");\\n }\\n}\\n\",\"keccak256\":\"0xd803eb22632692336bdfd6be55e24d1d06867e89bfbd9da33a4d0618b466c5d1\"},\"contracts/CToken.sol\":{\"content\":\"pragma solidity ^0.5.16;\\n\\nimport \\\"./ComptrollerInterface.sol\\\";\\nimport \\\"./CTokenInterfaces.sol\\\";\\nimport \\\"./ErrorReporter.sol\\\";\\nimport \\\"./Exponential.sol\\\";\\nimport \\\"./EIP20Interface.sol\\\";\\nimport \\\"./EIP20NonStandardInterface.sol\\\";\\nimport \\\"./InterestRateModel.sol\\\";\\n\\n/**\\n * @title Compound's CToken Contract\\n * @notice Abstract base for CTokens\\n * @author Compound\\n */\\ncontract CToken is CTokenInterface, Exponential, TokenErrorReporter {\\n /**\\n * @notice Initialize the money market\\n * @param comptroller_ The address of the Comptroller\\n * @param interestRateModel_ The address of the interest rate model\\n * @param initialExchangeRateMantissa_ The initial exchange rate, scaled by 1e18\\n * @param name_ EIP-20 name of this token\\n * @param symbol_ EIP-20 symbol of this token\\n * @param decimals_ EIP-20 decimal precision of this token\\n */\\n function initialize(ComptrollerInterface comptroller_,\\n InterestRateModel interestRateModel_,\\n uint initialExchangeRateMantissa_,\\n string memory name_,\\n string memory symbol_,\\n uint8 decimals_) public {\\n require(msg.sender == admin, \\\"only admin may initialize the market\\\");\\n require(accrualBlockNumber == 0 && borrowIndex == 0, \\\"market may only be initialized once\\\");\\n\\n // Set initial exchange rate\\n initialExchangeRateMantissa = initialExchangeRateMantissa_;\\n require(initialExchangeRateMantissa > 0, \\\"initial exchange rate must be greater than zero.\\\");\\n\\n // Set the comptroller\\n uint err = _setComptroller(comptroller_);\\n require(err == uint(Error.NO_ERROR), \\\"setting comptroller failed\\\");\\n\\n // Initialize block number and borrow index (block number mocks depend on comptroller being set)\\n accrualBlockNumber = getBlockNumber();\\n borrowIndex = mantissaOne;\\n\\n // Set the interest rate model (depends on block number / borrow index)\\n err = _setInterestRateModelFresh(interestRateModel_);\\n require(err == uint(Error.NO_ERROR), \\\"setting interest rate model failed\\\");\\n\\n name = name_;\\n symbol = symbol_;\\n decimals = decimals_;\\n\\n // The counter starts true to prevent changing it from zero to non-zero (i.e. smaller cost/refund)\\n _notEntered = true;\\n }\\n\\n /**\\n * @notice Transfer `tokens` tokens from `src` to `dst` by `spender`\\n * @dev Called by both `transfer` and `transferFrom` internally\\n * @param spender The address of the account performing the transfer\\n * @param src The address of the source account\\n * @param dst The address of the destination account\\n * @param tokens The number of tokens to transfer\\n * @return Whether or not the transfer succeeded\\n */\\n function transferTokens(address spender, address src, address dst, uint tokens) internal returns (uint) {\\n /* Fail if transfer not allowed */\\n uint allowed = comptroller.transferAllowed(address(this), src, dst, tokens);\\n if (allowed != 0) {\\n return failOpaque(Error.COMPTROLLER_REJECTION, FailureInfo.TRANSFER_COMPTROLLER_REJECTION, allowed);\\n }\\n\\n /* Do not allow self-transfers */\\n if (src == dst) {\\n return fail(Error.BAD_INPUT, FailureInfo.TRANSFER_NOT_ALLOWED);\\n }\\n\\n /* Get the allowance, infinite for the account owner */\\n uint startingAllowance = 0;\\n if (spender == src) {\\n startingAllowance = uint(-1);\\n } else {\\n startingAllowance = transferAllowances[src][spender];\\n }\\n\\n /* Do the calculations, checking for {under,over}flow */\\n MathError mathErr;\\n uint allowanceNew;\\n uint srcTokensNew;\\n uint dstTokensNew;\\n\\n (mathErr, allowanceNew) = subUInt(startingAllowance, tokens);\\n if (mathErr != MathError.NO_ERROR) {\\n return fail(Error.MATH_ERROR, FailureInfo.TRANSFER_NOT_ALLOWED);\\n }\\n\\n (mathErr, srcTokensNew) = subUInt(accountTokens[src], tokens);\\n if (mathErr != MathError.NO_ERROR) {\\n return fail(Error.MATH_ERROR, FailureInfo.TRANSFER_NOT_ENOUGH);\\n }\\n\\n (mathErr, dstTokensNew) = addUInt(accountTokens[dst], tokens);\\n if (mathErr != MathError.NO_ERROR) {\\n return fail(Error.MATH_ERROR, FailureInfo.TRANSFER_TOO_MUCH);\\n }\\n\\n /////////////////////////\\n // EFFECTS & INTERACTIONS\\n // (No safe failures beyond this point)\\n\\n accountTokens[src] = srcTokensNew;\\n accountTokens[dst] = dstTokensNew;\\n\\n /* Eat some of the allowance (if necessary) */\\n if (startingAllowance != uint(-1)) {\\n transferAllowances[src][spender] = allowanceNew;\\n }\\n\\n /* We emit a Transfer event */\\n emit Transfer(src, dst, tokens);\\n\\n comptroller.transferVerify(address(this), src, dst, tokens);\\n\\n return uint(Error.NO_ERROR);\\n }\\n\\n /**\\n * @notice Transfer `amount` tokens from `msg.sender` to `dst`\\n * @param dst The address of the destination account\\n * @param amount The number of tokens to transfer\\n * @return Whether or not the transfer succeeded\\n */\\n function transfer(address dst, uint256 amount) external nonReentrant returns (bool) {\\n return transferTokens(msg.sender, msg.sender, dst, amount) == uint(Error.NO_ERROR);\\n }\\n\\n /**\\n * @notice Transfer `amount` tokens from `src` to `dst`\\n * @param src The address of the source account\\n * @param dst The address of the destination account\\n * @param amount The number of tokens to transfer\\n * @return Whether or not the transfer succeeded\\n */\\n function transferFrom(address src, address dst, uint256 amount) external nonReentrant returns (bool) {\\n return transferTokens(msg.sender, src, dst, amount) == uint(Error.NO_ERROR);\\n }\\n\\n /**\\n * @notice Approve `spender` to transfer up to `amount` from `src`\\n * @dev This will overwrite the approval amount for `spender`\\n * and is subject to issues noted [here](https://eips.ethereum.org/EIPS/eip-20#approve)\\n * @param spender The address of the account which may transfer tokens\\n * @param amount The number of tokens that are approved (-1 means infinite)\\n * @return Whether or not the approval succeeded\\n */\\n function approve(address spender, uint256 amount) external returns (bool) {\\n address src = msg.sender;\\n transferAllowances[src][spender] = amount;\\n emit Approval(src, spender, amount);\\n return true;\\n }\\n\\n /**\\n * @notice Get the current allowance from `owner` for `spender`\\n * @param owner The address of the account which owns the tokens to be spent\\n * @param spender The address of the account which may transfer tokens\\n * @return The number of tokens allowed to be spent (-1 means infinite)\\n */\\n function allowance(address owner, address spender) external view returns (uint256) {\\n return transferAllowances[owner][spender];\\n }\\n\\n /**\\n * @notice Get the token balance of the `owner`\\n * @param owner The address of the account to query\\n * @return The number of tokens owned by `owner`\\n */\\n function balanceOf(address owner) external view returns (uint256) {\\n return accountTokens[owner];\\n }\\n\\n /**\\n * @notice Get the underlying balance of the `owner`\\n * @dev This also accrues interest in a transaction\\n * @param owner The address of the account to query\\n * @return The amount of underlying owned by `owner`\\n */\\n function balanceOfUnderlying(address owner) external returns (uint) {\\n Exp memory exchangeRate = Exp({mantissa: exchangeRateCurrent()});\\n (MathError mErr, uint balance) = mulScalarTruncate(exchangeRate, accountTokens[owner]);\\n require(mErr == MathError.NO_ERROR, \\\"balance could not be calculated\\\");\\n return balance;\\n }\\n\\n /**\\n * @notice Get a snapshot of the account's balances, and the cached exchange rate\\n * @dev This is used by comptroller to more efficiently perform liquidity checks.\\n * @param account Address of the account to snapshot\\n * @return (possible error, token balance, borrow balance, exchange rate mantissa)\\n */\\n function getAccountSnapshot(address account) external view returns (uint, uint, uint, uint) {\\n uint cTokenBalance = accountTokens[account];\\n uint borrowBalance;\\n uint exchangeRateMantissa;\\n\\n MathError mErr;\\n\\n (mErr, borrowBalance) = borrowBalanceStoredInternal(account);\\n if (mErr != MathError.NO_ERROR) {\\n return (uint(Error.MATH_ERROR), 0, 0, 0);\\n }\\n\\n (mErr, exchangeRateMantissa) = exchangeRateStoredInternal();\\n if (mErr != MathError.NO_ERROR) {\\n return (uint(Error.MATH_ERROR), 0, 0, 0);\\n }\\n\\n return (uint(Error.NO_ERROR), cTokenBalance, borrowBalance, exchangeRateMantissa);\\n }\\n\\n /**\\n * @dev Function to simply retrieve block number\\n * This exists mainly for inheriting test contracts to stub this result.\\n */\\n function getBlockNumber() internal view returns (uint) {\\n return block.number;\\n }\\n\\n /**\\n * @notice Returns the current per-block borrow interest rate for this cToken\\n * @return The borrow interest rate per block, scaled by 1e18\\n */\\n function borrowRatePerBlock() external view returns (uint) {\\n return interestRateModel.getBorrowRate(getCashPrior(), totalBorrows, totalReserves);\\n }\\n\\n /**\\n * @notice Returns the current per-block supply interest rate for this cToken\\n * @return The supply interest rate per block, scaled by 1e18\\n */\\n function supplyRatePerBlock() external view returns (uint) {\\n return interestRateModel.getSupplyRate(getCashPrior(), totalBorrows, totalReserves, reserveFactorMantissa);\\n }\\n\\n /**\\n * @notice Returns the current total borrows plus accrued interest\\n * @return The total borrows with interest\\n */\\n function totalBorrowsCurrent() external nonReentrant returns (uint) {\\n require(accrueInterest() == uint(Error.NO_ERROR), \\\"accrue interest failed\\\");\\n return totalBorrows;\\n }\\n\\n /**\\n * @notice Accrue interest to updated borrowIndex and then calculate account's borrow balance using the updated borrowIndex\\n * @param account The address whose balance should be calculated after updating borrowIndex\\n * @return The calculated balance\\n */\\n function borrowBalanceCurrent(address account) external nonReentrant returns (uint) {\\n require(accrueInterest() == uint(Error.NO_ERROR), \\\"accrue interest failed\\\");\\n return borrowBalanceStored(account);\\n }\\n\\n /**\\n * @notice Return the borrow balance of account based on stored data\\n * @param account The address whose balance should be calculated\\n * @return The calculated balance\\n */\\n function borrowBalanceStored(address account) public view returns (uint) {\\n (MathError err, uint result) = borrowBalanceStoredInternal(account);\\n require(err == MathError.NO_ERROR, \\\"borrowBalanceStored: borrowBalanceStoredInternal failed\\\");\\n return result;\\n }\\n\\n /**\\n * @notice Return the borrow balance of account based on stored data\\n * @param account The address whose balance should be calculated\\n * @return (error code, the calculated balance or 0 if error code is non-zero)\\n */\\n function borrowBalanceStoredInternal(address account) internal view returns (MathError, uint) {\\n /* Note: we do not assert that the market is up to date */\\n MathError mathErr;\\n uint principalTimesIndex;\\n uint result;\\n\\n /* Get borrowBalance and borrowIndex */\\n BorrowSnapshot storage borrowSnapshot = accountBorrows[account];\\n\\n /* If borrowBalance = 0 then borrowIndex is likely also 0.\\n * Rather than failing the calculation with a division by 0, we immediately return 0 in this case.\\n */\\n if (borrowSnapshot.principal == 0) {\\n return (MathError.NO_ERROR, 0);\\n }\\n\\n /* Calculate new borrow balance using the interest index:\\n * recentBorrowBalance = borrower.borrowBalance * market.borrowIndex / borrower.borrowIndex\\n */\\n (mathErr, principalTimesIndex) = mulUInt(borrowSnapshot.principal, borrowIndex);\\n if (mathErr != MathError.NO_ERROR) {\\n return (mathErr, 0);\\n }\\n\\n (mathErr, result) = divUInt(principalTimesIndex, borrowSnapshot.interestIndex);\\n if (mathErr != MathError.NO_ERROR) {\\n return (mathErr, 0);\\n }\\n\\n return (MathError.NO_ERROR, result);\\n }\\n\\n /**\\n * @notice Accrue interest then return the up-to-date exchange rate\\n * @return Calculated exchange rate scaled by 1e18\\n */\\n function exchangeRateCurrent() public nonReentrant returns (uint) {\\n require(accrueInterest() == uint(Error.NO_ERROR), \\\"accrue interest failed\\\");\\n return exchangeRateStored();\\n }\\n\\n /**\\n * @notice Calculates the exchange rate from the underlying to the CToken\\n * @dev This function does not accrue interest before calculating the exchange rate\\n * @return Calculated exchange rate scaled by 1e18\\n */\\n function exchangeRateStored() public view returns (uint) {\\n (MathError err, uint result) = exchangeRateStoredInternal();\\n require(err == MathError.NO_ERROR, \\\"exchangeRateStored: exchangeRateStoredInternal failed\\\");\\n return result;\\n }\\n\\n /**\\n * @notice Calculates the exchange rate from the underlying to the CToken\\n * @dev This function does not accrue interest before calculating the exchange rate\\n * @return (error code, calculated exchange rate scaled by 1e18)\\n */\\n function exchangeRateStoredInternal() internal view returns (MathError, uint) {\\n uint _totalSupply = totalSupply;\\n if (_totalSupply == 0) {\\n /*\\n * If there are no tokens minted:\\n * exchangeRate = initialExchangeRate\\n */\\n return (MathError.NO_ERROR, initialExchangeRateMantissa);\\n } else {\\n /*\\n * Otherwise:\\n * exchangeRate = (totalCash + totalBorrows - totalReserves) / totalSupply\\n */\\n uint totalCash = getCashPrior();\\n uint cashPlusBorrowsMinusReserves;\\n Exp memory exchangeRate;\\n MathError mathErr;\\n\\n (mathErr, cashPlusBorrowsMinusReserves) = addThenSubUInt(totalCash, totalBorrows, totalReserves);\\n if (mathErr != MathError.NO_ERROR) {\\n return (mathErr, 0);\\n }\\n\\n (mathErr, exchangeRate) = getExp(cashPlusBorrowsMinusReserves, _totalSupply);\\n if (mathErr != MathError.NO_ERROR) {\\n return (mathErr, 0);\\n }\\n\\n return (MathError.NO_ERROR, exchangeRate.mantissa);\\n }\\n }\\n\\n /**\\n * @notice Get cash balance of this cToken in the underlying asset\\n * @return The quantity of underlying asset owned by this contract\\n */\\n function getCash() external view returns (uint) {\\n return getCashPrior();\\n }\\n\\n /**\\n * @notice Applies accrued interest to total borrows and reserves\\n * @dev This calculates interest accrued from the last checkpointed block\\n * up to the current block and writes new checkpoint to storage.\\n */\\n function accrueInterest() public returns (uint) {\\n /* Remember the initial block number */\\n uint currentBlockNumber = getBlockNumber();\\n uint accrualBlockNumberPrior = accrualBlockNumber;\\n\\n /* Short-circuit accumulating 0 interest */\\n if (accrualBlockNumberPrior == currentBlockNumber) {\\n return uint(Error.NO_ERROR);\\n }\\n\\n /* Read the previous values out of storage */\\n uint cashPrior = getCashPrior();\\n uint borrowsPrior = totalBorrows;\\n uint reservesPrior = totalReserves;\\n uint borrowIndexPrior = borrowIndex;\\n\\n /* Calculate the current borrow interest rate */\\n uint borrowRateMantissa = interestRateModel.getBorrowRate(cashPrior, borrowsPrior, reservesPrior);\\n require(borrowRateMantissa <= borrowRateMaxMantissa, \\\"borrow rate is absurdly high\\\");\\n\\n /* Calculate the number of blocks elapsed since the last accrual */\\n (MathError mathErr, uint blockDelta) = subUInt(currentBlockNumber, accrualBlockNumberPrior);\\n require(mathErr == MathError.NO_ERROR, \\\"could not calculate block delta\\\");\\n\\n /*\\n * Calculate the interest accumulated into borrows and reserves and the new index:\\n * simpleInterestFactor = borrowRate * blockDelta\\n * interestAccumulated = simpleInterestFactor * totalBorrows\\n * totalBorrowsNew = interestAccumulated + totalBorrows\\n * totalReservesNew = interestAccumulated * reserveFactor + totalReserves\\n * borrowIndexNew = simpleInterestFactor * borrowIndex + borrowIndex\\n */\\n\\n Exp memory simpleInterestFactor;\\n uint interestAccumulated;\\n uint totalBorrowsNew;\\n uint totalReservesNew;\\n uint borrowIndexNew;\\n\\n (mathErr, simpleInterestFactor) = mulScalar(Exp({mantissa: borrowRateMantissa}), blockDelta);\\n if (mathErr != MathError.NO_ERROR) {\\n return failOpaque(Error.MATH_ERROR, FailureInfo.ACCRUE_INTEREST_SIMPLE_INTEREST_FACTOR_CALCULATION_FAILED, uint(mathErr));\\n }\\n\\n (mathErr, interestAccumulated) = mulScalarTruncate(simpleInterestFactor, borrowsPrior);\\n if (mathErr != MathError.NO_ERROR) {\\n return failOpaque(Error.MATH_ERROR, FailureInfo.ACCRUE_INTEREST_ACCUMULATED_INTEREST_CALCULATION_FAILED, uint(mathErr));\\n }\\n\\n (mathErr, totalBorrowsNew) = addUInt(interestAccumulated, borrowsPrior);\\n if (mathErr != MathError.NO_ERROR) {\\n return failOpaque(Error.MATH_ERROR, FailureInfo.ACCRUE_INTEREST_NEW_TOTAL_BORROWS_CALCULATION_FAILED, uint(mathErr));\\n }\\n\\n (mathErr, totalReservesNew) = mulScalarTruncateAddUInt(Exp({mantissa: reserveFactorMantissa}), interestAccumulated, reservesPrior);\\n if (mathErr != MathError.NO_ERROR) {\\n return failOpaque(Error.MATH_ERROR, FailureInfo.ACCRUE_INTEREST_NEW_TOTAL_RESERVES_CALCULATION_FAILED, uint(mathErr));\\n }\\n\\n (mathErr, borrowIndexNew) = mulScalarTruncateAddUInt(simpleInterestFactor, borrowIndexPrior, borrowIndexPrior);\\n if (mathErr != MathError.NO_ERROR) {\\n return failOpaque(Error.MATH_ERROR, FailureInfo.ACCRUE_INTEREST_NEW_BORROW_INDEX_CALCULATION_FAILED, uint(mathErr));\\n }\\n\\n /////////////////////////\\n // EFFECTS & INTERACTIONS\\n // (No safe failures beyond this point)\\n\\n /* We write the previously calculated values into storage */\\n accrualBlockNumber = currentBlockNumber;\\n borrowIndex = borrowIndexNew;\\n totalBorrows = totalBorrowsNew;\\n totalReserves = totalReservesNew;\\n\\n /* We emit an AccrueInterest event */\\n emit AccrueInterest(cashPrior, interestAccumulated, borrowIndexNew, totalBorrowsNew);\\n\\n return uint(Error.NO_ERROR);\\n }\\n\\n /**\\n * @notice Sender supplies assets into the market and receives cTokens in exchange\\n * @dev Accrues interest whether or not the operation succeeds, unless reverted\\n * @param mintAmount The amount of the underlying asset to supply\\n * @return (uint, uint) An error code (0=success, otherwise a failure, see ErrorReporter.sol), and the actual mint amount.\\n */\\n function mintInternal(uint mintAmount) internal nonReentrant returns (uint, uint) {\\n uint error = accrueInterest();\\n if (error != uint(Error.NO_ERROR)) {\\n // accrueInterest emits logs on errors, but we still want to log the fact that an attempted borrow failed\\n return (fail(Error(error), FailureInfo.MINT_ACCRUE_INTEREST_FAILED), 0);\\n }\\n // mintFresh emits the actual Mint event if successful and logs on errors, so we don't need to\\n return mintFresh(msg.sender, mintAmount);\\n }\\n\\n struct MintLocalVars {\\n Error err;\\n MathError mathErr;\\n uint exchangeRateMantissa;\\n uint mintTokens;\\n uint totalSupplyNew;\\n uint accountTokensNew;\\n uint actualMintAmount;\\n }\\n\\n /**\\n * @notice User supplies assets into the market and receives cTokens in exchange\\n * @dev Assumes interest has already been accrued up to the current block\\n * @param minter The address of the account which is supplying the assets\\n * @param mintAmount The amount of the underlying asset to supply\\n * @return (uint, uint) An error code (0=success, otherwise a failure, see ErrorReporter.sol), and the actual mint amount.\\n */\\n function mintFresh(address minter, uint mintAmount) internal returns (uint, uint) {\\n /* Fail if mint not allowed */\\n uint allowed = comptroller.mintAllowed(address(this), minter, mintAmount);\\n if (allowed != 0) {\\n return (failOpaque(Error.COMPTROLLER_REJECTION, FailureInfo.MINT_COMPTROLLER_REJECTION, allowed), 0);\\n }\\n\\n /* Verify market's block number equals current block number */\\n if (accrualBlockNumber != getBlockNumber()) {\\n return (fail(Error.MARKET_NOT_FRESH, FailureInfo.MINT_FRESHNESS_CHECK), 0);\\n }\\n\\n MintLocalVars memory vars;\\n\\n (vars.mathErr, vars.exchangeRateMantissa) = exchangeRateStoredInternal();\\n if (vars.mathErr != MathError.NO_ERROR) {\\n return (failOpaque(Error.MATH_ERROR, FailureInfo.MINT_EXCHANGE_RATE_READ_FAILED, uint(vars.mathErr)), 0);\\n }\\n\\n /////////////////////////\\n // EFFECTS & INTERACTIONS\\n // (No safe failures beyond this point)\\n\\n /*\\n * We call `doTransferIn` for the minter and the mintAmount.\\n * Note: The cToken must handle variations between ERC-20 and ETH underlying.\\n * `doTransferIn` reverts if anything goes wrong, since we can't be sure if\\n * side-effects occurred. The function returns the amount actually transferred,\\n * in case of a fee. On success, the cToken holds an additional `actualMintAmount`\\n * of cash.\\n */\\n vars.actualMintAmount = doTransferIn(minter, mintAmount);\\n\\n /*\\n * We get the current exchange rate and calculate the number of cTokens to be minted:\\n * mintTokens = actualMintAmount / exchangeRate\\n */\\n\\n (vars.mathErr, vars.mintTokens) = divScalarByExpTruncate(vars.actualMintAmount, Exp({mantissa: vars.exchangeRateMantissa}));\\n require(vars.mathErr == MathError.NO_ERROR, \\\"MINT_EXCHANGE_CALCULATION_FAILED\\\");\\n\\n /*\\n * We calculate the new total supply of cTokens and minter token balance, checking for overflow:\\n * totalSupplyNew = totalSupply + mintTokens\\n * accountTokensNew = accountTokens[minter] + mintTokens\\n */\\n (vars.mathErr, vars.totalSupplyNew) = addUInt(totalSupply, vars.mintTokens);\\n require(vars.mathErr == MathError.NO_ERROR, \\\"MINT_NEW_TOTAL_SUPPLY_CALCULATION_FAILED\\\");\\n\\n (vars.mathErr, vars.accountTokensNew) = addUInt(accountTokens[minter], vars.mintTokens);\\n require(vars.mathErr == MathError.NO_ERROR, \\\"MINT_NEW_ACCOUNT_BALANCE_CALCULATION_FAILED\\\");\\n\\n /* We write previously calculated values into storage */\\n totalSupply = vars.totalSupplyNew;\\n accountTokens[minter] = vars.accountTokensNew;\\n\\n /* We emit a Mint event, and a Transfer event */\\n emit Mint(minter, vars.actualMintAmount, vars.mintTokens);\\n emit Transfer(address(this), minter, vars.mintTokens);\\n\\n /* We call the defense hook */\\n comptroller.mintVerify(address(this), minter, vars.actualMintAmount, vars.mintTokens);\\n\\n return (uint(Error.NO_ERROR), vars.actualMintAmount);\\n }\\n\\n /**\\n * @notice Sender redeems cTokens in exchange for the underlying asset\\n * @dev Accrues interest whether or not the operation succeeds, unless reverted\\n * @param redeemTokens The number of cTokens to redeem into underlying\\n * @return uint 0=success, otherwise a failure (see ErrorReporter.sol for details)\\n */\\n function redeemInternal(uint redeemTokens) internal nonReentrant returns (uint) {\\n uint error = accrueInterest();\\n if (error != uint(Error.NO_ERROR)) {\\n // accrueInterest emits logs on errors, but we still want to log the fact that an attempted redeem failed\\n return fail(Error(error), FailureInfo.REDEEM_ACCRUE_INTEREST_FAILED);\\n }\\n // redeemFresh emits redeem-specific logs on errors, so we don't need to\\n return redeemFresh(msg.sender, redeemTokens, 0);\\n }\\n\\n /**\\n * @notice Sender redeems cTokens in exchange for a specified amount of underlying asset\\n * @dev Accrues interest whether or not the operation succeeds, unless reverted\\n * @param redeemAmount The amount of underlying to receive from redeeming cTokens\\n * @return uint 0=success, otherwise a failure (see ErrorReporter.sol for details)\\n */\\n function redeemUnderlyingInternal(uint redeemAmount) internal nonReentrant returns (uint) {\\n uint error = accrueInterest();\\n if (error != uint(Error.NO_ERROR)) {\\n // accrueInterest emits logs on errors, but we still want to log the fact that an attempted redeem failed\\n return fail(Error(error), FailureInfo.REDEEM_ACCRUE_INTEREST_FAILED);\\n }\\n // redeemFresh emits redeem-specific logs on errors, so we don't need to\\n return redeemFresh(msg.sender, 0, redeemAmount);\\n }\\n\\n struct RedeemLocalVars {\\n Error err;\\n MathError mathErr;\\n uint exchangeRateMantissa;\\n uint redeemTokens;\\n uint redeemAmount;\\n uint totalSupplyNew;\\n uint accountTokensNew;\\n }\\n\\n /**\\n * @notice User redeems cTokens in exchange for the underlying asset\\n * @dev Assumes interest has already been accrued up to the current block\\n * @param redeemer The address of the account which is redeeming the tokens\\n * @param redeemTokensIn The number of cTokens to redeem into underlying (only one of redeemTokensIn or redeemAmountIn may be non-zero)\\n * @param redeemAmountIn The number of underlying tokens to receive from redeeming cTokens (only one of redeemTokensIn or redeemAmountIn may be non-zero)\\n * @return uint 0=success, otherwise a failure (see ErrorReporter.sol for details)\\n */\\n function redeemFresh(address payable redeemer, uint redeemTokensIn, uint redeemAmountIn) internal returns (uint) {\\n require(redeemTokensIn == 0 || redeemAmountIn == 0, \\\"one of redeemTokensIn or redeemAmountIn must be zero\\\");\\n\\n RedeemLocalVars memory vars;\\n\\n /* exchangeRate = invoke Exchange Rate Stored() */\\n (vars.mathErr, vars.exchangeRateMantissa) = exchangeRateStoredInternal();\\n if (vars.mathErr != MathError.NO_ERROR) {\\n return failOpaque(Error.MATH_ERROR, FailureInfo.REDEEM_EXCHANGE_RATE_READ_FAILED, uint(vars.mathErr));\\n }\\n\\n /* If redeemTokensIn > 0: */\\n if (redeemTokensIn > 0) {\\n /*\\n * We calculate the exchange rate and the amount of underlying to be redeemed:\\n * redeemTokens = redeemTokensIn\\n * redeemAmount = redeemTokensIn x exchangeRateCurrent\\n */\\n vars.redeemTokens = redeemTokensIn;\\n\\n (vars.mathErr, vars.redeemAmount) = mulScalarTruncate(Exp({mantissa: vars.exchangeRateMantissa}), redeemTokensIn);\\n if (vars.mathErr != MathError.NO_ERROR) {\\n return failOpaque(Error.MATH_ERROR, FailureInfo.REDEEM_EXCHANGE_TOKENS_CALCULATION_FAILED, uint(vars.mathErr));\\n }\\n } else {\\n /*\\n * We get the current exchange rate and calculate the amount to be redeemed:\\n * redeemTokens = redeemAmountIn / exchangeRate\\n * redeemAmount = redeemAmountIn\\n */\\n\\n (vars.mathErr, vars.redeemTokens) = divScalarByExpTruncate(redeemAmountIn, Exp({mantissa: vars.exchangeRateMantissa}));\\n if (vars.mathErr != MathError.NO_ERROR) {\\n return failOpaque(Error.MATH_ERROR, FailureInfo.REDEEM_EXCHANGE_AMOUNT_CALCULATION_FAILED, uint(vars.mathErr));\\n }\\n\\n vars.redeemAmount = redeemAmountIn;\\n }\\n\\n /* Fail if redeem not allowed */\\n uint allowed = comptroller.redeemAllowed(address(this), redeemer, vars.redeemTokens);\\n if (allowed != 0) {\\n return failOpaque(Error.COMPTROLLER_REJECTION, FailureInfo.REDEEM_COMPTROLLER_REJECTION, allowed);\\n }\\n\\n /* Verify market's block number equals current block number */\\n if (accrualBlockNumber != getBlockNumber()) {\\n return fail(Error.MARKET_NOT_FRESH, FailureInfo.REDEEM_FRESHNESS_CHECK);\\n }\\n\\n /*\\n * We calculate the new total supply and redeemer balance, checking for underflow:\\n * totalSupplyNew = totalSupply - redeemTokens\\n * accountTokensNew = accountTokens[redeemer] - redeemTokens\\n */\\n (vars.mathErr, vars.totalSupplyNew) = subUInt(totalSupply, vars.redeemTokens);\\n if (vars.mathErr != MathError.NO_ERROR) {\\n return failOpaque(Error.MATH_ERROR, FailureInfo.REDEEM_NEW_TOTAL_SUPPLY_CALCULATION_FAILED, uint(vars.mathErr));\\n }\\n\\n (vars.mathErr, vars.accountTokensNew) = subUInt(accountTokens[redeemer], vars.redeemTokens);\\n if (vars.mathErr != MathError.NO_ERROR) {\\n return failOpaque(Error.MATH_ERROR, FailureInfo.REDEEM_NEW_ACCOUNT_BALANCE_CALCULATION_FAILED, uint(vars.mathErr));\\n }\\n\\n /* Fail gracefully if protocol has insufficient cash */\\n if (getCashPrior() < vars.redeemAmount) {\\n return fail(Error.TOKEN_INSUFFICIENT_CASH, FailureInfo.REDEEM_TRANSFER_OUT_NOT_POSSIBLE);\\n }\\n\\n /////////////////////////\\n // EFFECTS & INTERACTIONS\\n // (No safe failures beyond this point)\\n\\n /*\\n * We invoke doTransferOut for the redeemer and the redeemAmount.\\n * Note: The cToken must handle variations between ERC-20 and ETH underlying.\\n * On success, the cToken has redeemAmount less of cash.\\n * doTransferOut reverts if anything goes wrong, since we can't be sure if side effects occurred.\\n */\\n doTransferOut(redeemer, vars.redeemAmount);\\n\\n /* We write previously calculated values into storage */\\n totalSupply = vars.totalSupplyNew;\\n accountTokens[redeemer] = vars.accountTokensNew;\\n\\n /* We emit a Transfer event, and a Redeem event */\\n emit Transfer(redeemer, address(this), vars.redeemTokens);\\n emit Redeem(redeemer, vars.redeemAmount, vars.redeemTokens);\\n\\n /* We call the defense hook */\\n comptroller.redeemVerify(address(this), redeemer, vars.redeemAmount, vars.redeemTokens);\\n\\n return uint(Error.NO_ERROR);\\n }\\n\\n /**\\n * @notice Sender borrows assets from the protocol to their own address\\n * @param borrowAmount The amount of the underlying asset to borrow\\n * @return uint 0=success, otherwise a failure (see ErrorReporter.sol for details)\\n */\\n function borrowInternal(uint borrowAmount) internal nonReentrant returns (uint) {\\n uint error = accrueInterest();\\n if (error != uint(Error.NO_ERROR)) {\\n // accrueInterest emits logs on errors, but we still want to log the fact that an attempted borrow failed\\n return fail(Error(error), FailureInfo.BORROW_ACCRUE_INTEREST_FAILED);\\n }\\n // borrowFresh emits borrow-specific logs on errors, so we don't need to\\n return borrowFresh(msg.sender, borrowAmount);\\n }\\n\\n struct BorrowLocalVars {\\n MathError mathErr;\\n uint accountBorrows;\\n uint accountBorrowsNew;\\n uint totalBorrowsNew;\\n }\\n\\n /**\\n * @notice Users borrow assets from the protocol to their own address\\n * @param borrowAmount The amount of the underlying asset to borrow\\n * @return uint 0=success, otherwise a failure (see ErrorReporter.sol for details)\\n */\\n function borrowFresh(address payable borrower, uint borrowAmount) internal returns (uint) {\\n /* Fail if borrow not allowed */\\n uint allowed = comptroller.borrowAllowed(address(this), borrower, borrowAmount);\\n if (allowed != 0) {\\n return failOpaque(Error.COMPTROLLER_REJECTION, FailureInfo.BORROW_COMPTROLLER_REJECTION, allowed);\\n }\\n\\n /* Verify market's block number equals current block number */\\n if (accrualBlockNumber != getBlockNumber()) {\\n return fail(Error.MARKET_NOT_FRESH, FailureInfo.BORROW_FRESHNESS_CHECK);\\n }\\n\\n /* Fail gracefully if protocol has insufficient underlying cash */\\n if (getCashPrior() < borrowAmount) {\\n return fail(Error.TOKEN_INSUFFICIENT_CASH, FailureInfo.BORROW_CASH_NOT_AVAILABLE);\\n }\\n\\n BorrowLocalVars memory vars;\\n\\n /*\\n * We calculate the new borrower and total borrow balances, failing on overflow:\\n * accountBorrowsNew = accountBorrows + borrowAmount\\n * totalBorrowsNew = totalBorrows + borrowAmount\\n */\\n (vars.mathErr, vars.accountBorrows) = borrowBalanceStoredInternal(borrower);\\n if (vars.mathErr != MathError.NO_ERROR) {\\n return failOpaque(Error.MATH_ERROR, FailureInfo.BORROW_ACCUMULATED_BALANCE_CALCULATION_FAILED, uint(vars.mathErr));\\n }\\n\\n (vars.mathErr, vars.accountBorrowsNew) = addUInt(vars.accountBorrows, borrowAmount);\\n if (vars.mathErr != MathError.NO_ERROR) {\\n return failOpaque(Error.MATH_ERROR, FailureInfo.BORROW_NEW_ACCOUNT_BORROW_BALANCE_CALCULATION_FAILED, uint(vars.mathErr));\\n }\\n\\n (vars.mathErr, vars.totalBorrowsNew) = addUInt(totalBorrows, borrowAmount);\\n if (vars.mathErr != MathError.NO_ERROR) {\\n return failOpaque(Error.MATH_ERROR, FailureInfo.BORROW_NEW_TOTAL_BALANCE_CALCULATION_FAILED, uint(vars.mathErr));\\n }\\n\\n /////////////////////////\\n // EFFECTS & INTERACTIONS\\n // (No safe failures beyond this point)\\n\\n /*\\n * We invoke doTransferOut for the borrower and the borrowAmount.\\n * Note: The cToken must handle variations between ERC-20 and ETH underlying.\\n * On success, the cToken borrowAmount less of cash.\\n * doTransferOut reverts if anything goes wrong, since we can't be sure if side effects occurred.\\n */\\n doTransferOut(borrower, borrowAmount);\\n\\n /* We write the previously calculated values into storage */\\n accountBorrows[borrower].principal = vars.accountBorrowsNew;\\n accountBorrows[borrower].interestIndex = borrowIndex;\\n totalBorrows = vars.totalBorrowsNew;\\n\\n /* We emit a Borrow event */\\n emit Borrow(borrower, borrowAmount, vars.accountBorrowsNew, vars.totalBorrowsNew);\\n\\n /* We call the defense hook */\\n comptroller.borrowVerify(address(this), borrower, borrowAmount);\\n\\n return uint(Error.NO_ERROR);\\n }\\n\\n /**\\n * @notice Sender repays their own borrow\\n * @param repayAmount The amount to repay\\n * @return (uint, uint) An error code (0=success, otherwise a failure, see ErrorReporter.sol), and the actual repayment amount.\\n */\\n function repayBorrowInternal(uint repayAmount) internal nonReentrant returns (uint, uint) {\\n uint error = accrueInterest();\\n if (error != uint(Error.NO_ERROR)) {\\n // accrueInterest emits logs on errors, but we still want to log the fact that an attempted borrow failed\\n return (fail(Error(error), FailureInfo.REPAY_BORROW_ACCRUE_INTEREST_FAILED), 0);\\n }\\n // repayBorrowFresh emits repay-borrow-specific logs on errors, so we don't need to\\n return repayBorrowFresh(msg.sender, msg.sender, repayAmount);\\n }\\n\\n /**\\n * @notice Sender repays a borrow belonging to borrower\\n * @param borrower the account with the debt being payed off\\n * @param repayAmount The amount to repay\\n * @return (uint, uint) An error code (0=success, otherwise a failure, see ErrorReporter.sol), and the actual repayment amount.\\n */\\n function repayBorrowBehalfInternal(address borrower, uint repayAmount) internal nonReentrant returns (uint, uint) {\\n uint error = accrueInterest();\\n if (error != uint(Error.NO_ERROR)) {\\n // accrueInterest emits logs on errors, but we still want to log the fact that an attempted borrow failed\\n return (fail(Error(error), FailureInfo.REPAY_BEHALF_ACCRUE_INTEREST_FAILED), 0);\\n }\\n // repayBorrowFresh emits repay-borrow-specific logs on errors, so we don't need to\\n return repayBorrowFresh(msg.sender, borrower, repayAmount);\\n }\\n\\n struct RepayBorrowLocalVars {\\n Error err;\\n MathError mathErr;\\n uint repayAmount;\\n uint borrowerIndex;\\n uint accountBorrows;\\n uint accountBorrowsNew;\\n uint totalBorrowsNew;\\n uint actualRepayAmount;\\n }\\n\\n /**\\n * @notice Borrows are repaid by another user (possibly the borrower).\\n * @param payer the account paying off the borrow\\n * @param borrower the account with the debt being payed off\\n * @param repayAmount the amount of undelrying tokens being returned\\n * @return (uint, uint) An error code (0=success, otherwise a failure, see ErrorReporter.sol), and the actual repayment amount.\\n */\\n function repayBorrowFresh(address payer, address borrower, uint repayAmount) internal returns (uint, uint) {\\n /* Fail if repayBorrow not allowed */\\n uint allowed = comptroller.repayBorrowAllowed(address(this), payer, borrower, repayAmount);\\n if (allowed != 0) {\\n return (failOpaque(Error.COMPTROLLER_REJECTION, FailureInfo.REPAY_BORROW_COMPTROLLER_REJECTION, allowed), 0);\\n }\\n\\n /* Verify market's block number equals current block number */\\n if (accrualBlockNumber != getBlockNumber()) {\\n return (fail(Error.MARKET_NOT_FRESH, FailureInfo.REPAY_BORROW_FRESHNESS_CHECK), 0);\\n }\\n\\n RepayBorrowLocalVars memory vars;\\n\\n /* We remember the original borrowerIndex for verification purposes */\\n vars.borrowerIndex = accountBorrows[borrower].interestIndex;\\n\\n /* We fetch the amount the borrower owes, with accumulated interest */\\n (vars.mathErr, vars.accountBorrows) = borrowBalanceStoredInternal(borrower);\\n if (vars.mathErr != MathError.NO_ERROR) {\\n return (failOpaque(Error.MATH_ERROR, FailureInfo.REPAY_BORROW_ACCUMULATED_BALANCE_CALCULATION_FAILED, uint(vars.mathErr)), 0);\\n }\\n\\n /* If repayAmount == -1, repayAmount = accountBorrows */\\n if (repayAmount == uint(-1)) {\\n vars.repayAmount = vars.accountBorrows;\\n } else {\\n vars.repayAmount = repayAmount;\\n }\\n\\n /////////////////////////\\n // EFFECTS & INTERACTIONS\\n // (No safe failures beyond this point)\\n\\n /*\\n * We call doTransferIn for the payer and the repayAmount\\n * Note: The cToken must handle variations between ERC-20 and ETH underlying.\\n * On success, the cToken holds an additional repayAmount of cash.\\n * doTransferIn reverts if anything goes wrong, since we can't be sure if side effects occurred.\\n * it returns the amount actually transferred, in case of a fee.\\n */\\n vars.actualRepayAmount = doTransferIn(payer, vars.repayAmount);\\n\\n /*\\n * We calculate the new borrower and total borrow balances, failing on underflow:\\n * accountBorrowsNew = accountBorrows - actualRepayAmount\\n * totalBorrowsNew = totalBorrows - actualRepayAmount\\n */\\n (vars.mathErr, vars.accountBorrowsNew) = subUInt(vars.accountBorrows, vars.actualRepayAmount);\\n require(vars.mathErr == MathError.NO_ERROR, \\\"REPAY_BORROW_NEW_ACCOUNT_BORROW_BALANCE_CALCULATION_FAILED\\\");\\n\\n (vars.mathErr, vars.totalBorrowsNew) = subUInt(totalBorrows, vars.actualRepayAmount);\\n require(vars.mathErr == MathError.NO_ERROR, \\\"REPAY_BORROW_NEW_TOTAL_BALANCE_CALCULATION_FAILED\\\");\\n\\n /* We write the previously calculated values into storage */\\n accountBorrows[borrower].principal = vars.accountBorrowsNew;\\n accountBorrows[borrower].interestIndex = borrowIndex;\\n totalBorrows = vars.totalBorrowsNew;\\n\\n /* We emit a RepayBorrow event */\\n emit RepayBorrow(payer, borrower, vars.actualRepayAmount, vars.accountBorrowsNew, vars.totalBorrowsNew);\\n\\n /* We call the defense hook */\\n comptroller.repayBorrowVerify(address(this), payer, borrower, vars.actualRepayAmount, vars.borrowerIndex);\\n\\n return (uint(Error.NO_ERROR), vars.actualRepayAmount);\\n }\\n\\n /**\\n * @notice The sender liquidates the borrowers collateral.\\n * The collateral seized is transferred to the liquidator.\\n * @param borrower The borrower of this cToken to be liquidated\\n * @param cTokenCollateral The market in which to seize collateral from the borrower\\n * @param repayAmount The amount of the underlying borrowed asset to repay\\n * @return (uint, uint) An error code (0=success, otherwise a failure, see ErrorReporter.sol), and the actual repayment amount.\\n */\\n function liquidateBorrowInternal(address borrower, uint repayAmount, CTokenInterface cTokenCollateral) internal nonReentrant returns (uint, uint) {\\n uint error = accrueInterest();\\n if (error != uint(Error.NO_ERROR)) {\\n // accrueInterest emits logs on errors, but we still want to log the fact that an attempted liquidation failed\\n return (fail(Error(error), FailureInfo.LIQUIDATE_ACCRUE_BORROW_INTEREST_FAILED), 0);\\n }\\n\\n error = cTokenCollateral.accrueInterest();\\n if (error != uint(Error.NO_ERROR)) {\\n // accrueInterest emits logs on errors, but we still want to log the fact that an attempted liquidation failed\\n return (fail(Error(error), FailureInfo.LIQUIDATE_ACCRUE_COLLATERAL_INTEREST_FAILED), 0);\\n }\\n\\n // liquidateBorrowFresh emits borrow-specific logs on errors, so we don't need to\\n return liquidateBorrowFresh(msg.sender, borrower, repayAmount, cTokenCollateral);\\n }\\n\\n /**\\n * @notice The liquidator liquidates the borrowers collateral.\\n * The collateral seized is transferred to the liquidator.\\n * @param borrower The borrower of this cToken to be liquidated\\n * @param liquidator The address repaying the borrow and seizing collateral\\n * @param cTokenCollateral The market in which to seize collateral from the borrower\\n * @param repayAmount The amount of the underlying borrowed asset to repay\\n * @return (uint, uint) An error code (0=success, otherwise a failure, see ErrorReporter.sol), and the actual repayment amount.\\n */\\n function liquidateBorrowFresh(address liquidator, address borrower, uint repayAmount, CTokenInterface cTokenCollateral) internal returns (uint, uint) {\\n /* Fail if liquidate not allowed */\\n uint allowed = comptroller.liquidateBorrowAllowed(address(this), address(cTokenCollateral), liquidator, borrower, repayAmount);\\n if (allowed != 0) {\\n return (failOpaque(Error.COMPTROLLER_REJECTION, FailureInfo.LIQUIDATE_COMPTROLLER_REJECTION, allowed), 0);\\n }\\n\\n /* Verify market's block number equals current block number */\\n if (accrualBlockNumber != getBlockNumber()) {\\n return (fail(Error.MARKET_NOT_FRESH, FailureInfo.LIQUIDATE_FRESHNESS_CHECK), 0);\\n }\\n\\n /* Verify cTokenCollateral market's block number equals current block number */\\n if (cTokenCollateral.accrualBlockNumber() != getBlockNumber()) {\\n return (fail(Error.MARKET_NOT_FRESH, FailureInfo.LIQUIDATE_COLLATERAL_FRESHNESS_CHECK), 0);\\n }\\n\\n /* Fail if borrower = liquidator */\\n if (borrower == liquidator) {\\n return (fail(Error.INVALID_ACCOUNT_PAIR, FailureInfo.LIQUIDATE_LIQUIDATOR_IS_BORROWER), 0);\\n }\\n\\n /* Fail if repayAmount = 0 */\\n if (repayAmount == 0) {\\n return (fail(Error.INVALID_CLOSE_AMOUNT_REQUESTED, FailureInfo.LIQUIDATE_CLOSE_AMOUNT_IS_ZERO), 0);\\n }\\n\\n /* Fail if repayAmount = -1 */\\n if (repayAmount == uint(-1)) {\\n return (fail(Error.INVALID_CLOSE_AMOUNT_REQUESTED, FailureInfo.LIQUIDATE_CLOSE_AMOUNT_IS_UINT_MAX), 0);\\n }\\n\\n\\n /* Fail if repayBorrow fails */\\n (uint repayBorrowError, uint actualRepayAmount) = repayBorrowFresh(liquidator, borrower, repayAmount);\\n if (repayBorrowError != uint(Error.NO_ERROR)) {\\n return (fail(Error(repayBorrowError), FailureInfo.LIQUIDATE_REPAY_BORROW_FRESH_FAILED), 0);\\n }\\n\\n /////////////////////////\\n // EFFECTS & INTERACTIONS\\n // (No safe failures beyond this point)\\n\\n /* We calculate the number of collateral tokens that will be seized */\\n (uint amountSeizeError, uint seizeTokens) = comptroller.liquidateCalculateSeizeTokens(address(this), address(cTokenCollateral), actualRepayAmount);\\n require(amountSeizeError == uint(Error.NO_ERROR), \\\"LIQUIDATE_COMPTROLLER_CALCULATE_AMOUNT_SEIZE_FAILED\\\");\\n\\n /* Revert if borrower collateral token balance < seizeTokens */\\n require(cTokenCollateral.balanceOf(borrower) >= seizeTokens, \\\"LIQUIDATE_SEIZE_TOO_MUCH\\\");\\n\\n // If this is also the collateral, run seizeInternal to avoid re-entrancy, otherwise make an external call\\n uint seizeError;\\n if (address(cTokenCollateral) == address(this)) {\\n seizeError = seizeInternal(address(this), liquidator, borrower, seizeTokens);\\n } else {\\n seizeError = cTokenCollateral.seize(liquidator, borrower, seizeTokens);\\n }\\n\\n /* Revert if seize tokens fails (since we cannot be sure of side effects) */\\n require(seizeError == uint(Error.NO_ERROR), \\\"token seizure failed\\\");\\n\\n /* We emit a LiquidateBorrow event */\\n emit LiquidateBorrow(liquidator, borrower, actualRepayAmount, address(cTokenCollateral), seizeTokens);\\n\\n /* We call the defense hook */\\n comptroller.liquidateBorrowVerify(address(this), address(cTokenCollateral), liquidator, borrower, actualRepayAmount, seizeTokens);\\n\\n return (uint(Error.NO_ERROR), actualRepayAmount);\\n }\\n\\n /**\\n * @notice Transfers collateral tokens (this market) to the liquidator.\\n * @dev Will fail unless called by another cToken during the process of liquidation.\\n * Its absolutely critical to use msg.sender as the borrowed cToken and not a parameter.\\n * @param liquidator The account receiving seized collateral\\n * @param borrower The account having collateral seized\\n * @param seizeTokens The number of cTokens to seize\\n * @return uint 0=success, otherwise a failure (see ErrorReporter.sol for details)\\n */\\n function seize(address liquidator, address borrower, uint seizeTokens) external nonReentrant returns (uint) {\\n return seizeInternal(msg.sender, liquidator, borrower, seizeTokens);\\n }\\n\\n /**\\n * @notice Transfers collateral tokens (this market) to the liquidator.\\n * @dev Called only during an in-kind liquidation, or by liquidateBorrow during the liquidation of another CToken.\\n * Its absolutely critical to use msg.sender as the seizer cToken and not a parameter.\\n * @param seizerToken The contract seizing the collateral (i.e. borrowed cToken)\\n * @param liquidator The account receiving seized collateral\\n * @param borrower The account having collateral seized\\n * @param seizeTokens The number of cTokens to seize\\n * @return uint 0=success, otherwise a failure (see ErrorReporter.sol for details)\\n */\\n function seizeInternal(address seizerToken, address liquidator, address borrower, uint seizeTokens) internal returns (uint) {\\n /* Fail if seize not allowed */\\n uint allowed = comptroller.seizeAllowed(address(this), seizerToken, liquidator, borrower, seizeTokens);\\n if (allowed != 0) {\\n return failOpaque(Error.COMPTROLLER_REJECTION, FailureInfo.LIQUIDATE_SEIZE_COMPTROLLER_REJECTION, allowed);\\n }\\n\\n /* Fail if borrower = liquidator */\\n if (borrower == liquidator) {\\n return fail(Error.INVALID_ACCOUNT_PAIR, FailureInfo.LIQUIDATE_SEIZE_LIQUIDATOR_IS_BORROWER);\\n }\\n\\n MathError mathErr;\\n uint borrowerTokensNew;\\n uint liquidatorTokensNew;\\n\\n /*\\n * We calculate the new borrower and liquidator token balances, failing on underflow/overflow:\\n * borrowerTokensNew = accountTokens[borrower] - seizeTokens\\n * liquidatorTokensNew = accountTokens[liquidator] + seizeTokens\\n */\\n (mathErr, borrowerTokensNew) = subUInt(accountTokens[borrower], seizeTokens);\\n if (mathErr != MathError.NO_ERROR) {\\n return failOpaque(Error.MATH_ERROR, FailureInfo.LIQUIDATE_SEIZE_BALANCE_DECREMENT_FAILED, uint(mathErr));\\n }\\n\\n (mathErr, liquidatorTokensNew) = addUInt(accountTokens[liquidator], seizeTokens);\\n if (mathErr != MathError.NO_ERROR) {\\n return failOpaque(Error.MATH_ERROR, FailureInfo.LIQUIDATE_SEIZE_BALANCE_INCREMENT_FAILED, uint(mathErr));\\n }\\n\\n /////////////////////////\\n // EFFECTS & INTERACTIONS\\n // (No safe failures beyond this point)\\n\\n /* We write the previously calculated values into storage */\\n accountTokens[borrower] = borrowerTokensNew;\\n accountTokens[liquidator] = liquidatorTokensNew;\\n\\n /* Emit a Transfer event */\\n emit Transfer(borrower, liquidator, seizeTokens);\\n\\n /* We call the defense hook */\\n comptroller.seizeVerify(address(this), seizerToken, liquidator, borrower, seizeTokens);\\n\\n return uint(Error.NO_ERROR);\\n }\\n\\n\\n /*** Admin Functions ***/\\n\\n /**\\n * @notice Begins transfer of admin rights. The newPendingAdmin must call `_acceptAdmin` to finalize the transfer.\\n * @dev Admin function to begin change of admin. The newPendingAdmin must call `_acceptAdmin` to finalize the transfer.\\n * @param newPendingAdmin New pending admin.\\n * @return uint 0=success, otherwise a failure (see ErrorReporter.sol for details)\\n */\\n function _setPendingAdmin(address payable newPendingAdmin) external returns (uint) {\\n // Check caller = admin\\n if (msg.sender != admin) {\\n return fail(Error.UNAUTHORIZED, FailureInfo.SET_PENDING_ADMIN_OWNER_CHECK);\\n }\\n\\n // Save current value, if any, for inclusion in log\\n address oldPendingAdmin = pendingAdmin;\\n\\n // Store pendingAdmin with value newPendingAdmin\\n pendingAdmin = newPendingAdmin;\\n\\n // Emit NewPendingAdmin(oldPendingAdmin, newPendingAdmin)\\n emit NewPendingAdmin(oldPendingAdmin, newPendingAdmin);\\n\\n return uint(Error.NO_ERROR);\\n }\\n\\n /**\\n * @notice Accepts transfer of admin rights. msg.sender must be pendingAdmin\\n * @dev Admin function for pending admin to accept role and update admin\\n * @return uint 0=success, otherwise a failure (see ErrorReporter.sol for details)\\n */\\n function _acceptAdmin() external returns (uint) {\\n // Check caller is pendingAdmin and pendingAdmin \\u2260 address(0)\\n if (msg.sender != pendingAdmin || msg.sender == address(0)) {\\n return fail(Error.UNAUTHORIZED, FailureInfo.ACCEPT_ADMIN_PENDING_ADMIN_CHECK);\\n }\\n\\n // Save current values for inclusion in log\\n address oldAdmin = admin;\\n address oldPendingAdmin = pendingAdmin;\\n\\n // Store admin with value pendingAdmin\\n admin = pendingAdmin;\\n\\n // Clear the pending value\\n pendingAdmin = address(0);\\n\\n emit NewAdmin(oldAdmin, admin);\\n emit NewPendingAdmin(oldPendingAdmin, pendingAdmin);\\n\\n return uint(Error.NO_ERROR);\\n }\\n\\n /**\\n * @notice Sets a new comptroller for the market\\n * @dev Admin function to set a new comptroller\\n * @return uint 0=success, otherwise a failure (see ErrorReporter.sol for details)\\n */\\n function _setComptroller(ComptrollerInterface newComptroller) public returns (uint) {\\n // Check caller is admin\\n if (msg.sender != admin) {\\n return fail(Error.UNAUTHORIZED, FailureInfo.SET_COMPTROLLER_OWNER_CHECK);\\n }\\n\\n ComptrollerInterface oldComptroller = comptroller;\\n // Ensure invoke comptroller.isComptroller() returns true\\n require(newComptroller.isComptroller(), \\\"marker method returned false\\\");\\n\\n // Set market's comptroller to newComptroller\\n comptroller = newComptroller;\\n\\n // Emit NewComptroller(oldComptroller, newComptroller)\\n emit NewComptroller(oldComptroller, newComptroller);\\n\\n return uint(Error.NO_ERROR);\\n }\\n\\n /**\\n * @notice accrues interest and sets a new reserve factor for the protocol using _setReserveFactorFresh\\n * @dev Admin function to accrue interest and set a new reserve factor\\n * @return uint 0=success, otherwise a failure (see ErrorReporter.sol for details)\\n */\\n function _setReserveFactor(uint newReserveFactorMantissa) external nonReentrant returns (uint) {\\n uint error = accrueInterest();\\n if (error != uint(Error.NO_ERROR)) {\\n // accrueInterest emits logs on errors, but on top of that we want to log the fact that an attempted reserve factor change failed.\\n return fail(Error(error), FailureInfo.SET_RESERVE_FACTOR_ACCRUE_INTEREST_FAILED);\\n }\\n // _setReserveFactorFresh emits reserve-factor-specific logs on errors, so we don't need to.\\n return _setReserveFactorFresh(newReserveFactorMantissa);\\n }\\n\\n /**\\n * @notice Sets a new reserve factor for the protocol (*requires fresh interest accrual)\\n * @dev Admin function to set a new reserve factor\\n * @return uint 0=success, otherwise a failure (see ErrorReporter.sol for details)\\n */\\n function _setReserveFactorFresh(uint newReserveFactorMantissa) internal returns (uint) {\\n // Check caller is admin\\n if (msg.sender != admin) {\\n return fail(Error.UNAUTHORIZED, FailureInfo.SET_RESERVE_FACTOR_ADMIN_CHECK);\\n }\\n\\n // Verify market's block number equals current block number\\n if (accrualBlockNumber != getBlockNumber()) {\\n return fail(Error.MARKET_NOT_FRESH, FailureInfo.SET_RESERVE_FACTOR_FRESH_CHECK);\\n }\\n\\n // Check newReserveFactor \\u2264 maxReserveFactor\\n if (newReserveFactorMantissa > reserveFactorMaxMantissa) {\\n return fail(Error.BAD_INPUT, FailureInfo.SET_RESERVE_FACTOR_BOUNDS_CHECK);\\n }\\n\\n uint oldReserveFactorMantissa = reserveFactorMantissa;\\n reserveFactorMantissa = newReserveFactorMantissa;\\n\\n emit NewReserveFactor(oldReserveFactorMantissa, newReserveFactorMantissa);\\n\\n return uint(Error.NO_ERROR);\\n }\\n\\n /**\\n * @notice Accrues interest and reduces reserves by transferring from msg.sender\\n * @param addAmount Amount of addition to reserves\\n * @return uint 0=success, otherwise a failure (see ErrorReporter.sol for details)\\n */\\n function _addReservesInternal(uint addAmount) internal nonReentrant returns (uint) {\\n uint error = accrueInterest();\\n if (error != uint(Error.NO_ERROR)) {\\n // accrueInterest emits logs on errors, but on top of that we want to log the fact that an attempted reduce reserves failed.\\n return fail(Error(error), FailureInfo.ADD_RESERVES_ACCRUE_INTEREST_FAILED);\\n }\\n\\n // _addReservesFresh emits reserve-addition-specific logs on errors, so we don't need to.\\n (error, ) = _addReservesFresh(addAmount);\\n return error;\\n }\\n\\n /**\\n * @notice Add reserves by transferring from caller\\n * @dev Requires fresh interest accrual\\n * @param addAmount Amount of addition to reserves\\n * @return (uint, uint) An error code (0=success, otherwise a failure (see ErrorReporter.sol for details)) and the actual amount added, net token fees\\n */\\n function _addReservesFresh(uint addAmount) internal returns (uint, uint) {\\n // totalReserves + actualAddAmount\\n uint totalReservesNew;\\n uint actualAddAmount;\\n\\n // We fail gracefully unless market's block number equals current block number\\n if (accrualBlockNumber != getBlockNumber()) {\\n return (fail(Error.MARKET_NOT_FRESH, FailureInfo.ADD_RESERVES_FRESH_CHECK), actualAddAmount);\\n }\\n\\n /////////////////////////\\n // EFFECTS & INTERACTIONS\\n // (No safe failures beyond this point)\\n\\n /*\\n * We call doTransferIn for the caller and the addAmount\\n * Note: The cToken must handle variations between ERC-20 and ETH underlying.\\n * On success, the cToken holds an additional addAmount of cash.\\n * doTransferIn reverts if anything goes wrong, since we can't be sure if side effects occurred.\\n * it returns the amount actually transferred, in case of a fee.\\n */\\n\\n actualAddAmount = doTransferIn(msg.sender, addAmount);\\n\\n totalReservesNew = totalReserves + actualAddAmount;\\n\\n /* Revert on overflow */\\n require(totalReservesNew >= totalReserves, \\\"add reserves unexpected overflow\\\");\\n\\n // Store reserves[n+1] = reserves[n] + actualAddAmount\\n totalReserves = totalReservesNew;\\n\\n /* Emit NewReserves(admin, actualAddAmount, reserves[n+1]) */\\n emit ReservesAdded(msg.sender, actualAddAmount, totalReservesNew);\\n\\n /* Return (NO_ERROR, actualAddAmount) */\\n return (uint(Error.NO_ERROR), actualAddAmount);\\n }\\n\\n\\n /**\\n * @notice Accrues interest and reduces reserves by transferring to admin\\n * @param reduceAmount Amount of reduction to reserves\\n * @return uint 0=success, otherwise a failure (see ErrorReporter.sol for details)\\n */\\n function _reduceReserves(uint reduceAmount) external nonReentrant returns (uint) {\\n uint error = accrueInterest();\\n if (error != uint(Error.NO_ERROR)) {\\n // accrueInterest emits logs on errors, but on top of that we want to log the fact that an attempted reduce reserves failed.\\n return fail(Error(error), FailureInfo.REDUCE_RESERVES_ACCRUE_INTEREST_FAILED);\\n }\\n // _reduceReservesFresh emits reserve-reduction-specific logs on errors, so we don't need to.\\n return _reduceReservesFresh(reduceAmount);\\n }\\n\\n /**\\n * @notice Reduces reserves by transferring to admin\\n * @dev Requires fresh interest accrual\\n * @param reduceAmount Amount of reduction to reserves\\n * @return uint 0=success, otherwise a failure (see ErrorReporter.sol for details)\\n */\\n function _reduceReservesFresh(uint reduceAmount) internal returns (uint) {\\n // totalReserves - reduceAmount\\n uint totalReservesNew;\\n\\n // Check caller is admin\\n if (msg.sender != admin) {\\n return fail(Error.UNAUTHORIZED, FailureInfo.REDUCE_RESERVES_ADMIN_CHECK);\\n }\\n\\n // We fail gracefully unless market's block number equals current block number\\n if (accrualBlockNumber != getBlockNumber()) {\\n return fail(Error.MARKET_NOT_FRESH, FailureInfo.REDUCE_RESERVES_FRESH_CHECK);\\n }\\n\\n // Fail gracefully if protocol has insufficient underlying cash\\n if (getCashPrior() < reduceAmount) {\\n return fail(Error.TOKEN_INSUFFICIENT_CASH, FailureInfo.REDUCE_RESERVES_CASH_NOT_AVAILABLE);\\n }\\n\\n // Check reduceAmount \\u2264 reserves[n] (totalReserves)\\n if (reduceAmount > totalReserves) {\\n return fail(Error.BAD_INPUT, FailureInfo.REDUCE_RESERVES_VALIDATION);\\n }\\n\\n /////////////////////////\\n // EFFECTS & INTERACTIONS\\n // (No safe failures beyond this point)\\n\\n totalReservesNew = totalReserves - reduceAmount;\\n // We checked reduceAmount <= totalReserves above, so this should never revert.\\n require(totalReservesNew <= totalReserves, \\\"reduce reserves unexpected underflow\\\");\\n\\n // Store reserves[n+1] = reserves[n] - reduceAmount\\n totalReserves = totalReservesNew;\\n\\n // doTransferOut reverts if anything goes wrong, since we can't be sure if side effects occurred.\\n doTransferOut(admin, reduceAmount);\\n\\n emit ReservesReduced(admin, reduceAmount, totalReservesNew);\\n\\n return uint(Error.NO_ERROR);\\n }\\n\\n /**\\n * @notice accrues interest and updates the interest rate model using _setInterestRateModelFresh\\n * @dev Admin function to accrue interest and update the interest rate model\\n * @param newInterestRateModel the new interest rate model to use\\n * @return uint 0=success, otherwise a failure (see ErrorReporter.sol for details)\\n */\\n function _setInterestRateModel(InterestRateModel newInterestRateModel) public returns (uint) {\\n uint error = accrueInterest();\\n if (error != uint(Error.NO_ERROR)) {\\n // accrueInterest emits logs on errors, but on top of that we want to log the fact that an attempted change of interest rate model failed\\n return fail(Error(error), FailureInfo.SET_INTEREST_RATE_MODEL_ACCRUE_INTEREST_FAILED);\\n }\\n // _setInterestRateModelFresh emits interest-rate-model-update-specific logs on errors, so we don't need to.\\n return _setInterestRateModelFresh(newInterestRateModel);\\n }\\n\\n /**\\n * @notice updates the interest rate model (*requires fresh interest accrual)\\n * @dev Admin function to update the interest rate model\\n * @param newInterestRateModel the new interest rate model to use\\n * @return uint 0=success, otherwise a failure (see ErrorReporter.sol for details)\\n */\\n function _setInterestRateModelFresh(InterestRateModel newInterestRateModel) internal returns (uint) {\\n\\n // Used to store old model for use in the event that is emitted on success\\n InterestRateModel oldInterestRateModel;\\n\\n // Check caller is admin\\n if (msg.sender != admin) {\\n return fail(Error.UNAUTHORIZED, FailureInfo.SET_INTEREST_RATE_MODEL_OWNER_CHECK);\\n }\\n\\n // We fail gracefully unless market's block number equals current block number\\n if (accrualBlockNumber != getBlockNumber()) {\\n return fail(Error.MARKET_NOT_FRESH, FailureInfo.SET_INTEREST_RATE_MODEL_FRESH_CHECK);\\n }\\n\\n // Track the market's current interest rate model\\n oldInterestRateModel = interestRateModel;\\n\\n // Ensure invoke newInterestRateModel.isInterestRateModel() returns true\\n require(newInterestRateModel.isInterestRateModel(), \\\"marker method returned false\\\");\\n\\n // Set the interest rate model to newInterestRateModel\\n interestRateModel = newInterestRateModel;\\n\\n // Emit NewMarketInterestRateModel(oldInterestRateModel, newInterestRateModel)\\n emit NewMarketInterestRateModel(oldInterestRateModel, newInterestRateModel);\\n\\n return uint(Error.NO_ERROR);\\n }\\n\\n /*** Safe Token ***/\\n\\n /**\\n * @notice Gets balance of this contract in terms of the underlying\\n * @dev This excludes the value of the current message, if any\\n * @return The quantity of underlying owned by this contract\\n */\\n function getCashPrior() internal view returns (uint);\\n\\n /**\\n * @dev Performs a transfer in, reverting upon failure. Returns the amount actually transferred to the protocol, in case of a fee.\\n * This may revert due to insufficient balance or insufficient allowance.\\n */\\n function doTransferIn(address from, uint amount) internal returns (uint);\\n\\n /**\\n * @dev Performs a transfer out, ideally returning an explanatory error code upon failure tather than reverting.\\n * If caller has not called checked protocol's balance, may revert due to insufficient cash held in the contract.\\n * If caller has checked protocol's balance, and verified it is >= amount, this should not revert in normal conditions.\\n */\\n function doTransferOut(address payable to, uint amount) internal;\\n\\n\\n /*** Reentrancy Guard ***/\\n\\n /**\\n * @dev Prevents a contract from calling itself, directly or indirectly.\\n */\\n modifier nonReentrant() {\\n require(_notEntered, \\\"re-entered\\\");\\n _notEntered = false;\\n _;\\n _notEntered = true; // get a gas-refund post-Istanbul\\n }\\n}\\n\",\"keccak256\":\"0x16c3298d5c193a3ba224c9832d88d354da77d01c36037b58ad2cdfe3b82df42c\"},\"contracts/CTokenInterfaces.sol\":{\"content\":\"pragma solidity ^0.5.16;\\n\\nimport \\\"./ComptrollerInterface.sol\\\";\\nimport \\\"./InterestRateModel.sol\\\";\\n\\ncontract CTokenStorage {\\n /**\\n * @dev Guard variable for re-entrancy checks\\n */\\n bool internal _notEntered;\\n\\n /**\\n * @notice EIP-20 token name for this token\\n */\\n string public name;\\n\\n /**\\n * @notice EIP-20 token symbol for this token\\n */\\n string public symbol;\\n\\n /**\\n * @notice EIP-20 token decimals for this token\\n */\\n uint8 public decimals;\\n\\n /**\\n * @notice Maximum borrow rate that can ever be applied (.0005% / block)\\n */\\n\\n uint internal constant borrowRateMaxMantissa = 0.0005e16;\\n\\n /**\\n * @notice Maximum fraction of interest that can be set aside for reserves\\n */\\n uint internal constant reserveFactorMaxMantissa = 1e18;\\n\\n /**\\n * @notice Administrator for this contract\\n */\\n address payable public admin;\\n\\n /**\\n * @notice Pending administrator for this contract\\n */\\n address payable public pendingAdmin;\\n\\n /**\\n * @notice Contract which oversees inter-cToken operations\\n */\\n ComptrollerInterface public comptroller;\\n\\n /**\\n * @notice Model which tells what the current interest rate should be\\n */\\n InterestRateModel public interestRateModel;\\n\\n /**\\n * @notice Initial exchange rate used when minting the first CTokens (used when totalSupply = 0)\\n */\\n uint internal initialExchangeRateMantissa;\\n\\n /**\\n * @notice Fraction of interest currently set aside for reserves\\n */\\n uint public reserveFactorMantissa;\\n\\n /**\\n * @notice Block number that interest was last accrued at\\n */\\n uint public accrualBlockNumber;\\n\\n /**\\n * @notice Accumulator of the total earned interest rate since the opening of the market\\n */\\n uint public borrowIndex;\\n\\n /**\\n * @notice Total amount of outstanding borrows of the underlying in this market\\n */\\n uint public totalBorrows;\\n\\n /**\\n * @notice Total amount of reserves of the underlying held in this market\\n */\\n uint public totalReserves;\\n\\n /**\\n * @notice Total number of tokens in circulation\\n */\\n uint public totalSupply;\\n\\n /**\\n * @notice Official record of token balances for each account\\n */\\n mapping (address => uint) internal accountTokens;\\n\\n /**\\n * @notice Approved token transfer amounts on behalf of others\\n */\\n mapping (address => mapping (address => uint)) internal transferAllowances;\\n\\n /**\\n * @notice Container for borrow balance information\\n * @member principal Total balance (with accrued interest), after applying the most recent balance-changing action\\n * @member interestIndex Global borrowIndex as of the most recent balance-changing action\\n */\\n struct BorrowSnapshot {\\n uint principal;\\n uint interestIndex;\\n }\\n\\n /**\\n * @notice Mapping of account addresses to outstanding borrow balances\\n */\\n mapping(address => BorrowSnapshot) internal accountBorrows;\\n}\\n\\ncontract CTokenInterface is CTokenStorage {\\n /**\\n * @notice Indicator that this is a CToken contract (for inspection)\\n */\\n bool public constant isCToken = true;\\n\\n\\n /*** Market Events ***/\\n\\n /**\\n * @notice Event emitted when interest is accrued\\n */\\n event AccrueInterest(uint cashPrior, uint interestAccumulated, uint borrowIndex, uint totalBorrows);\\n\\n /**\\n * @notice Event emitted when tokens are minted\\n */\\n event Mint(address minter, uint mintAmount, uint mintTokens);\\n\\n /**\\n * @notice Event emitted when tokens are redeemed\\n */\\n event Redeem(address redeemer, uint redeemAmount, uint redeemTokens);\\n\\n /**\\n * @notice Event emitted when underlying is borrowed\\n */\\n event Borrow(address borrower, uint borrowAmount, uint accountBorrows, uint totalBorrows);\\n\\n /**\\n * @notice Event emitted when a borrow is repaid\\n */\\n event RepayBorrow(address payer, address borrower, uint repayAmount, uint accountBorrows, uint totalBorrows);\\n\\n /**\\n * @notice Event emitted when a borrow is liquidated\\n */\\n event LiquidateBorrow(address liquidator, address borrower, uint repayAmount, address cTokenCollateral, uint seizeTokens);\\n\\n\\n /*** Admin Events ***/\\n\\n /**\\n * @notice Event emitted when pendingAdmin is changed\\n */\\n event NewPendingAdmin(address oldPendingAdmin, address newPendingAdmin);\\n\\n /**\\n * @notice Event emitted when pendingAdmin is accepted, which means admin is updated\\n */\\n event NewAdmin(address oldAdmin, address newAdmin);\\n\\n /**\\n * @notice Event emitted when comptroller is changed\\n */\\n event NewComptroller(ComptrollerInterface oldComptroller, ComptrollerInterface newComptroller);\\n\\n /**\\n * @notice Event emitted when interestRateModel is changed\\n */\\n event NewMarketInterestRateModel(InterestRateModel oldInterestRateModel, InterestRateModel newInterestRateModel);\\n\\n /**\\n * @notice Event emitted when the reserve factor is changed\\n */\\n event NewReserveFactor(uint oldReserveFactorMantissa, uint newReserveFactorMantissa);\\n\\n /**\\n * @notice Event emitted when the reserves are added\\n */\\n event ReservesAdded(address benefactor, uint addAmount, uint newTotalReserves);\\n\\n /**\\n * @notice Event emitted when the reserves are reduced\\n */\\n event ReservesReduced(address admin, uint reduceAmount, uint newTotalReserves);\\n\\n /**\\n * @notice EIP20 Transfer event\\n */\\n event Transfer(address indexed from, address indexed to, uint amount);\\n\\n /**\\n * @notice EIP20 Approval event\\n */\\n event Approval(address indexed owner, address indexed spender, uint amount);\\n\\n /**\\n * @notice Failure event\\n */\\n event Failure(uint error, uint info, uint detail);\\n\\n\\n /*** User Interface ***/\\n\\n function transfer(address dst, uint amount) external returns (bool);\\n function transferFrom(address src, address dst, uint amount) external returns (bool);\\n function approve(address spender, uint amount) external returns (bool);\\n function allowance(address owner, address spender) external view returns (uint);\\n function balanceOf(address owner) external view returns (uint);\\n function balanceOfUnderlying(address owner) external returns (uint);\\n function getAccountSnapshot(address account) external view returns (uint, uint, uint, uint);\\n function borrowRatePerBlock() external view returns (uint);\\n function supplyRatePerBlock() external view returns (uint);\\n function totalBorrowsCurrent() external returns (uint);\\n function borrowBalanceCurrent(address account) external returns (uint);\\n function borrowBalanceStored(address account) public view returns (uint);\\n function exchangeRateCurrent() public returns (uint);\\n function exchangeRateStored() public view returns (uint);\\n function getCash() external view returns (uint);\\n function accrueInterest() public returns (uint);\\n function seize(address liquidator, address borrower, uint seizeTokens) external returns (uint);\\n\\n\\n /*** Admin Functions ***/\\n\\n function _setPendingAdmin(address payable newPendingAdmin) external returns (uint);\\n function _acceptAdmin() external returns (uint);\\n function _setComptroller(ComptrollerInterface newComptroller) public returns (uint);\\n function _setReserveFactor(uint newReserveFactorMantissa) external returns (uint);\\n function _reduceReserves(uint reduceAmount) external returns (uint);\\n function _setInterestRateModel(InterestRateModel newInterestRateModel) public returns (uint);\\n}\\n\\ncontract CErc20Storage {\\n /**\\n * @notice Underlying asset for this CToken\\n */\\n address public underlying;\\n}\\n\\ncontract CErc20Interface is CErc20Storage {\\n\\n /*** User Interface ***/\\n\\n function mint(uint mintAmount) external returns (uint);\\n function redeem(uint redeemTokens) external returns (uint);\\n function redeemUnderlying(uint redeemAmount) external returns (uint);\\n function borrow(uint borrowAmount) external returns (uint);\\n function repayBorrow(uint repayAmount) external returns (uint);\\n function repayBorrowBehalf(address borrower, uint repayAmount) external returns (uint);\\n function liquidateBorrow(address borrower, uint repayAmount, CTokenInterface cTokenCollateral) external returns (uint);\\n\\n\\n /*** Admin Functions ***/\\n\\n function _addReserves(uint addAmount) external returns (uint);\\n}\\n\\ncontract CDelegationStorage {\\n /**\\n * @notice Implementation address for this contract\\n */\\n address public implementation;\\n}\\n\\ncontract CDelegatorInterface is CDelegationStorage {\\n /**\\n * @notice Emitted when implementation is changed\\n */\\n event NewImplementation(address oldImplementation, address newImplementation);\\n\\n /**\\n * @notice Called by the admin to update the implementation of the delegator\\n * @param implementation_ The address of the new implementation for delegation\\n * @param allowResign Flag to indicate whether to call _resignImplementation on the old implementation\\n * @param becomeImplementationData The encoded bytes data to be passed to _becomeImplementation\\n */\\n function _setImplementation(address implementation_, bool allowResign, bytes memory becomeImplementationData) public;\\n}\\n\\ncontract CDelegateInterface is CDelegationStorage {\\n /**\\n * @notice Called by the delegator on a delegate to initialize it for duty\\n * @dev Should revert if any issues arise which make it unfit for delegation\\n * @param data The encoded bytes data for any initialization\\n */\\n function _becomeImplementation(bytes memory data) public;\\n\\n /**\\n * @notice Called by the delegator on a delegate to forfeit its responsibility\\n */\\n function _resignImplementation() public;\\n}\\n\",\"keccak256\":\"0xbedd7a46507f6e249f4019c9cadf95d5e3af38fa914c9572a81f6d79c946bd66\"},\"contracts/CarefulMath.sol\":{\"content\":\"pragma solidity ^0.5.16;\\n\\n/**\\n * @title Careful Math\\n * @author Compound\\n * @notice Derived from OpenZeppelin's SafeMath library\\n * https://github.com/OpenZeppelin/openzeppelin-solidity/blob/master/contracts/math/SafeMath.sol\\n */\\ncontract CarefulMath {\\n\\n /**\\n * @dev Possible error codes that we can return\\n */\\n enum MathError {\\n NO_ERROR,\\n DIVISION_BY_ZERO,\\n INTEGER_OVERFLOW,\\n INTEGER_UNDERFLOW\\n }\\n\\n /**\\n * @dev Multiplies two numbers, returns an error on overflow.\\n */\\n function mulUInt(uint a, uint b) internal pure returns (MathError, uint) {\\n if (a == 0) {\\n return (MathError.NO_ERROR, 0);\\n }\\n\\n uint c = a * b;\\n\\n if (c / a != b) {\\n return (MathError.INTEGER_OVERFLOW, 0);\\n } else {\\n return (MathError.NO_ERROR, c);\\n }\\n }\\n\\n /**\\n * @dev Integer division of two numbers, truncating the quotient.\\n */\\n function divUInt(uint a, uint b) internal pure returns (MathError, uint) {\\n if (b == 0) {\\n return (MathError.DIVISION_BY_ZERO, 0);\\n }\\n\\n return (MathError.NO_ERROR, a / b);\\n }\\n\\n /**\\n * @dev Subtracts two numbers, returns an error on overflow (i.e. if subtrahend is greater than minuend).\\n */\\n function subUInt(uint a, uint b) internal pure returns (MathError, uint) {\\n if (b <= a) {\\n return (MathError.NO_ERROR, a - b);\\n } else {\\n return (MathError.INTEGER_UNDERFLOW, 0);\\n }\\n }\\n\\n /**\\n * @dev Adds two numbers, returns an error on overflow.\\n */\\n function addUInt(uint a, uint b) internal pure returns (MathError, uint) {\\n uint c = a + b;\\n\\n if (c >= a) {\\n return (MathError.NO_ERROR, c);\\n } else {\\n return (MathError.INTEGER_OVERFLOW, 0);\\n }\\n }\\n\\n /**\\n * @dev add a and b and then subtract c\\n */\\n function addThenSubUInt(uint a, uint b, uint c) internal pure returns (MathError, uint) {\\n (MathError err0, uint sum) = addUInt(a, b);\\n\\n if (err0 != MathError.NO_ERROR) {\\n return (err0, 0);\\n }\\n\\n return subUInt(sum, c);\\n }\\n}\",\"keccak256\":\"0x0647348f27e41d22555d99eebd217dee02a4d737df6accd7cce5347a7487c7de\"},\"contracts/ComptrollerInterface.sol\":{\"content\":\"pragma solidity ^0.5.16;\\n\\ncontract ComptrollerInterface {\\n /// @notice Indicator that this is a Comptroller contract (for inspection)\\n bool public constant isComptroller = true;\\n\\n /*** Assets You Are In ***/\\n\\n function enterMarkets(address[] calldata cTokens) external returns (uint[] memory);\\n function exitMarket(address cToken) external returns (uint);\\n\\n /*** Policy Hooks ***/\\n\\n function mintAllowed(address cToken, address minter, uint mintAmount) external returns (uint);\\n function mintVerify(address cToken, address minter, uint mintAmount, uint mintTokens) external;\\n\\n function redeemAllowed(address cToken, address redeemer, uint redeemTokens) external returns (uint);\\n function redeemVerify(address cToken, address redeemer, uint redeemAmount, uint redeemTokens) external;\\n\\n function borrowAllowed(address cToken, address borrower, uint borrowAmount) external returns (uint);\\n function borrowVerify(address cToken, address borrower, uint borrowAmount) external;\\n\\n function repayBorrowAllowed(\\n address cToken,\\n address payer,\\n address borrower,\\n uint repayAmount) external returns (uint);\\n function repayBorrowVerify(\\n address cToken,\\n address payer,\\n address borrower,\\n uint repayAmount,\\n uint borrowerIndex) external;\\n\\n function liquidateBorrowAllowed(\\n address cTokenBorrowed,\\n address cTokenCollateral,\\n address liquidator,\\n address borrower,\\n uint repayAmount) external returns (uint);\\n function liquidateBorrowVerify(\\n address cTokenBorrowed,\\n address cTokenCollateral,\\n address liquidator,\\n address borrower,\\n uint repayAmount,\\n uint seizeTokens) external;\\n\\n function seizeAllowed(\\n address cTokenCollateral,\\n address cTokenBorrowed,\\n address liquidator,\\n address borrower,\\n uint seizeTokens) external returns (uint);\\n function seizeVerify(\\n address cTokenCollateral,\\n address cTokenBorrowed,\\n address liquidator,\\n address borrower,\\n uint seizeTokens) external;\\n\\n function transferAllowed(address cToken, address src, address dst, uint transferTokens) external returns (uint);\\n function transferVerify(address cToken, address src, address dst, uint transferTokens) external;\\n\\n /*** Liquidity/Liquidation Calculations ***/\\n\\n function liquidateCalculateSeizeTokens(\\n address cTokenBorrowed,\\n address cTokenCollateral,\\n uint repayAmount) external view returns (uint, uint);\\n}\\n\",\"keccak256\":\"0xede7670d2dd7b25d0187aecd2c28b7b5ca7d7c1bdac144fbedecf5d4bdd92a6b\"},\"contracts/EIP20Interface.sol\":{\"content\":\"pragma solidity ^0.5.16;\\n\\n/**\\n * @title ERC 20 Token Standard Interface\\n * https://eips.ethereum.org/EIPS/eip-20\\n */\\ninterface EIP20Interface {\\n function name() external view returns (string memory);\\n function symbol() external view returns (string memory);\\n function decimals() external view returns (uint8);\\n\\n /**\\n * @notice Get the total number of tokens in circulation\\n * @return The supply of tokens\\n */\\n function totalSupply() external view returns (uint256);\\n\\n /**\\n * @notice Gets the balance of the specified address\\n * @param owner The address from which the balance will be retrieved\\n * @return The balance\\n */\\n function balanceOf(address owner) external view returns (uint256 balance);\\n\\n /**\\n * @notice Transfer `amount` tokens from `msg.sender` to `dst`\\n * @param dst The address of the destination account\\n * @param amount The number of tokens to transfer\\n * @return Whether or not the transfer succeeded\\n */\\n function transfer(address dst, uint256 amount) external returns (bool success);\\n\\n /**\\n * @notice Transfer `amount` tokens from `src` to `dst`\\n * @param src The address of the source account\\n * @param dst The address of the destination account\\n * @param amount The number of tokens to transfer\\n * @return Whether or not the transfer succeeded\\n */\\n function transferFrom(address src, address dst, uint256 amount) external returns (bool success);\\n\\n /**\\n * @notice Approve `spender` to transfer up to `amount` from `src`\\n * @dev This will overwrite the approval amount for `spender`\\n * and is subject to issues noted [here](https://eips.ethereum.org/EIPS/eip-20#approve)\\n * @param spender The address of the account which may transfer tokens\\n * @param amount The number of tokens that are approved (-1 means infinite)\\n * @return Whether or not the approval succeeded\\n */\\n function approve(address spender, uint256 amount) external returns (bool success);\\n\\n /**\\n * @notice Get the current allowance from `owner` for `spender`\\n * @param owner The address of the account which owns the tokens to be spent\\n * @param spender The address of the account which may transfer tokens\\n * @return The number of tokens allowed to be spent (-1 means infinite)\\n */\\n function allowance(address owner, address spender) external view returns (uint256 remaining);\\n\\n event Transfer(address indexed from, address indexed to, uint256 amount);\\n event Approval(address indexed owner, address indexed spender, uint256 amount);\\n}\\n\",\"keccak256\":\"0xfd8ed2eac6d0b4d9ee6b32628ba68bae17544b66f190a5f7ce0c6ad024579dc8\"},\"contracts/EIP20NonStandardInterface.sol\":{\"content\":\"pragma solidity ^0.5.16;\\n\\n/**\\n * @title EIP20NonStandardInterface\\n * @dev Version of ERC20 with no return values for `transfer` and `transferFrom`\\n * See https://medium.com/coinmonks/missing-return-value-bug-at-least-130-tokens-affected-d67bf08521ca\\n */\\ninterface EIP20NonStandardInterface {\\n\\n /**\\n * @notice Get the total number of tokens in circulation\\n * @return The supply of tokens\\n */\\n function totalSupply() external view returns (uint256);\\n\\n /**\\n * @notice Gets the balance of the specified address\\n * @param owner The address from which the balance will be retrieved\\n * @return The balance\\n */\\n function balanceOf(address owner) external view returns (uint256 balance);\\n\\n ///\\n /// !!!!!!!!!!!!!!\\n /// !!! NOTICE !!! `transfer` does not return a value, in violation of the ERC-20 specification\\n /// !!!!!!!!!!!!!!\\n ///\\n\\n /**\\n * @notice Transfer `amount` tokens from `msg.sender` to `dst`\\n * @param dst The address of the destination account\\n * @param amount The number of tokens to transfer\\n */\\n function transfer(address dst, uint256 amount) external;\\n\\n ///\\n /// !!!!!!!!!!!!!!\\n /// !!! NOTICE !!! `transferFrom` does not return a value, in violation of the ERC-20 specification\\n /// !!!!!!!!!!!!!!\\n ///\\n\\n /**\\n * @notice Transfer `amount` tokens from `src` to `dst`\\n * @param src The address of the source account\\n * @param dst The address of the destination account\\n * @param amount The number of tokens to transfer\\n */\\n function transferFrom(address src, address dst, uint256 amount) external;\\n\\n /**\\n * @notice Approve `spender` to transfer up to `amount` from `src`\\n * @dev This will overwrite the approval amount for `spender`\\n * and is subject to issues noted [here](https://eips.ethereum.org/EIPS/eip-20#approve)\\n * @param spender The address of the account which may transfer tokens\\n * @param amount The number of tokens that are approved\\n * @return Whether or not the approval succeeded\\n */\\n function approve(address spender, uint256 amount) external returns (bool success);\\n\\n /**\\n * @notice Get the current allowance from `owner` for `spender`\\n * @param owner The address of the account which owns the tokens to be spent\\n * @param spender The address of the account which may transfer tokens\\n * @return The number of tokens allowed to be spent\\n */\\n function allowance(address owner, address spender) external view returns (uint256 remaining);\\n\\n event Transfer(address indexed from, address indexed to, uint256 amount);\\n event Approval(address indexed owner, address indexed spender, uint256 amount);\\n}\\n\",\"keccak256\":\"0x9719f12e4b80b51147ac195553a198cf8b0c516e7e4d04fc324a23ed15cbafb2\"},\"contracts/ERC20.sol\":{\"content\":\"pragma solidity ^0.5.16;\\n\\nimport \\\"./SafeMath.sol\\\";\\n\\ncontract ERC20 {\\n using SafeMath for uint;\\n\\n string public name;\\n string public symbol;\\n uint8 public decimals;\\n uint public totalSupply;\\n address public operator;\\n address public pendingOperator;\\n mapping(address => uint) public balanceOf;\\n mapping(address => mapping(address => uint)) public allowance;\\n mapping (address => bool) public minters;\\n\\n bytes32 public DOMAIN_SEPARATOR;\\n // keccak256(\\\"Permit(address owner,address spender,uint256 value,uint256 nonce,uint256 deadline)\\\");\\n bytes32 public constant PERMIT_TYPEHASH = 0x6e71edae12b1b97f4d1f60370fef10105fa2faae0126114a169c64845d6126c9;\\n mapping(address => uint) public nonces;\\n\\n event Approval(address indexed owner, address indexed spender, uint value);\\n event Transfer(address indexed from, address indexed to, uint value);\\n event AddMinter(address indexed minter);\\n event RemoveMinter(address indexed minter);\\n event ChangeOperator(address indexed newOperator);\\n\\n modifier onlyOperator {\\n require(msg.sender == operator, \\\"ONLY OPERATOR\\\");\\n _;\\n }\\n\\n constructor(string memory name_, string memory symbol_, uint8 decimals_) public {\\n name = name_;\\n symbol = symbol_;\\n decimals = decimals_;\\n operator = msg.sender;\\n uint chainId;\\n assembly {\\n chainId := chainid\\n }\\n DOMAIN_SEPARATOR = keccak256(\\n abi.encode(\\n keccak256('EIP712Domain(string name,string version,uint256 chainId,address verifyingContract)'),\\n keccak256(bytes(name)),\\n keccak256(bytes('1')),\\n chainId,\\n address(this)\\n )\\n );\\n }\\n\\n function setPendingOperator(address newOperator_) public onlyOperator {\\n pendingOperator = newOperator_;\\n }\\n\\n function claimOperator() public {\\n require(msg.sender == pendingOperator, \\\"ONLY PENDING OPERATOR\\\");\\n operator = pendingOperator;\\n pendingOperator = address(0);\\n emit ChangeOperator(operator);\\n }\\n\\n function addMinter(address minter_) public onlyOperator {\\n minters[minter_] = true;\\n emit AddMinter(minter_);\\n }\\n\\n function removeMinter(address minter_) public onlyOperator {\\n minters[minter_] = false;\\n emit RemoveMinter(minter_);\\n }\\n\\n function mint(address to, uint amount) public {\\n require(minters[msg.sender] == true || msg.sender == operator, \\\"ONLY MINTERS OR OPERATOR\\\");\\n _mint(to, amount);\\n }\\n\\n function burn(uint amount) public {\\n _burn(msg.sender, amount);\\n }\\n\\n function _mint(address to, uint value) internal {\\n totalSupply = totalSupply.add(value);\\n balanceOf[to] = balanceOf[to].add(value);\\n emit Transfer(address(0), to, value);\\n }\\n\\n function _burn(address from, uint value) internal {\\n balanceOf[from] = balanceOf[from].sub(value);\\n totalSupply = totalSupply.sub(value);\\n emit Transfer(from, address(0), value);\\n }\\n\\n function _approve(address owner, address spender, uint value) private {\\n allowance[owner][spender] = value;\\n emit Approval(owner, spender, value);\\n }\\n\\n function _transfer(address from, address to, uint value) private {\\n balanceOf[from] = balanceOf[from].sub(value);\\n balanceOf[to] = balanceOf[to].add(value);\\n emit Transfer(from, to, value);\\n }\\n\\n function approve(address spender, uint value) external returns (bool) {\\n _approve(msg.sender, spender, value);\\n return true;\\n }\\n\\n function transfer(address to, uint value) external returns (bool) {\\n _transfer(msg.sender, to, value);\\n return true;\\n }\\n\\n function transferFrom(address from, address to, uint value) external returns (bool) {\\n if (allowance[from][msg.sender] != uint(-1)) {\\n allowance[from][msg.sender] = allowance[from][msg.sender].sub(value);\\n }\\n _transfer(from, to, value);\\n return true;\\n }\\n\\n function permit(address owner, address spender, uint value, uint deadline, uint8 v, bytes32 r, bytes32 s) external {\\n require(deadline >= block.timestamp, 'EXPIRED');\\n bytes32 digest = keccak256(\\n abi.encodePacked(\\n '\\\\x19\\\\x01',\\n DOMAIN_SEPARATOR,\\n keccak256(abi.encode(PERMIT_TYPEHASH, owner, spender, value, nonces[owner]++, deadline))\\n )\\n );\\n address recoveredAddress = ecrecover(digest, v, r, s);\\n require(recoveredAddress != address(0) && recoveredAddress == owner, 'INVALID_SIGNATURE');\\n _approve(owner, spender, value);\\n }\\n}\",\"keccak256\":\"0xbba3165ce28b590b23677791690cbf4956442d2f23bbc8b15fe2adfb80183745\"},\"contracts/ErrorReporter.sol\":{\"content\":\"pragma solidity ^0.5.16;\\n\\ncontract ComptrollerErrorReporter {\\n enum Error {\\n NO_ERROR,\\n UNAUTHORIZED,\\n COMPTROLLER_MISMATCH,\\n INSUFFICIENT_SHORTFALL,\\n INSUFFICIENT_LIQUIDITY,\\n INVALID_CLOSE_FACTOR,\\n INVALID_COLLATERAL_FACTOR,\\n INVALID_LIQUIDATION_INCENTIVE,\\n MARKET_NOT_ENTERED, // no longer possible\\n MARKET_NOT_LISTED,\\n MARKET_ALREADY_LISTED,\\n MATH_ERROR,\\n NONZERO_BORROW_BALANCE,\\n PRICE_ERROR,\\n REJECTION,\\n SNAPSHOT_ERROR,\\n TOO_MANY_ASSETS,\\n TOO_MUCH_REPAY\\n }\\n\\n enum FailureInfo {\\n ACCEPT_ADMIN_PENDING_ADMIN_CHECK,\\n ACCEPT_PENDING_IMPLEMENTATION_ADDRESS_CHECK,\\n EXIT_MARKET_BALANCE_OWED,\\n EXIT_MARKET_REJECTION,\\n SET_CLOSE_FACTOR_OWNER_CHECK,\\n SET_CLOSE_FACTOR_VALIDATION,\\n SET_COLLATERAL_FACTOR_OWNER_CHECK,\\n SET_COLLATERAL_FACTOR_NO_EXISTS,\\n SET_COLLATERAL_FACTOR_VALIDATION,\\n SET_COLLATERAL_FACTOR_WITHOUT_PRICE,\\n SET_IMPLEMENTATION_OWNER_CHECK,\\n SET_LIQUIDATION_INCENTIVE_OWNER_CHECK,\\n SET_LIQUIDATION_INCENTIVE_VALIDATION,\\n SET_MAX_ASSETS_OWNER_CHECK,\\n SET_PENDING_ADMIN_OWNER_CHECK,\\n SET_PENDING_IMPLEMENTATION_OWNER_CHECK,\\n SET_PRICE_ORACLE_OWNER_CHECK,\\n SUPPORT_MARKET_EXISTS,\\n SUPPORT_MARKET_OWNER_CHECK,\\n SET_PAUSE_GUARDIAN_OWNER_CHECK\\n }\\n\\n /**\\n * @dev `error` corresponds to enum Error; `info` corresponds to enum FailureInfo, and `detail` is an arbitrary\\n * contract-specific code that enables us to report opaque error codes from upgradeable contracts.\\n **/\\n event Failure(uint error, uint info, uint detail);\\n\\n /**\\n * @dev use this when reporting a known error from the money market or a non-upgradeable collaborator\\n */\\n function fail(Error err, FailureInfo info) internal returns (uint) {\\n emit Failure(uint(err), uint(info), 0);\\n\\n return uint(err);\\n }\\n\\n /**\\n * @dev use this when reporting an opaque error from an upgradeable collaborator contract\\n */\\n function failOpaque(Error err, FailureInfo info, uint opaqueError) internal returns (uint) {\\n emit Failure(uint(err), uint(info), opaqueError);\\n\\n return uint(err);\\n }\\n}\\n\\ncontract TokenErrorReporter {\\n enum Error {\\n NO_ERROR,\\n UNAUTHORIZED,\\n BAD_INPUT,\\n COMPTROLLER_REJECTION,\\n COMPTROLLER_CALCULATION_ERROR,\\n INTEREST_RATE_MODEL_ERROR,\\n INVALID_ACCOUNT_PAIR,\\n INVALID_CLOSE_AMOUNT_REQUESTED,\\n INVALID_COLLATERAL_FACTOR,\\n MATH_ERROR,\\n MARKET_NOT_FRESH,\\n MARKET_NOT_LISTED,\\n TOKEN_INSUFFICIENT_ALLOWANCE,\\n TOKEN_INSUFFICIENT_BALANCE,\\n TOKEN_INSUFFICIENT_CASH,\\n TOKEN_TRANSFER_IN_FAILED,\\n TOKEN_TRANSFER_OUT_FAILED\\n }\\n\\n /*\\n * Note: FailureInfo (but not Error) is kept in alphabetical order\\n * This is because FailureInfo grows significantly faster, and\\n * the order of Error has some meaning, while the order of FailureInfo\\n * is entirely arbitrary.\\n */\\n enum FailureInfo {\\n ACCEPT_ADMIN_PENDING_ADMIN_CHECK,\\n ACCRUE_INTEREST_ACCUMULATED_INTEREST_CALCULATION_FAILED,\\n ACCRUE_INTEREST_BORROW_RATE_CALCULATION_FAILED,\\n ACCRUE_INTEREST_NEW_BORROW_INDEX_CALCULATION_FAILED,\\n ACCRUE_INTEREST_NEW_TOTAL_BORROWS_CALCULATION_FAILED,\\n ACCRUE_INTEREST_NEW_TOTAL_RESERVES_CALCULATION_FAILED,\\n ACCRUE_INTEREST_SIMPLE_INTEREST_FACTOR_CALCULATION_FAILED,\\n BORROW_ACCUMULATED_BALANCE_CALCULATION_FAILED,\\n BORROW_ACCRUE_INTEREST_FAILED,\\n BORROW_CASH_NOT_AVAILABLE,\\n BORROW_FRESHNESS_CHECK,\\n BORROW_NEW_TOTAL_BALANCE_CALCULATION_FAILED,\\n BORROW_NEW_ACCOUNT_BORROW_BALANCE_CALCULATION_FAILED,\\n BORROW_MARKET_NOT_LISTED,\\n BORROW_COMPTROLLER_REJECTION,\\n LIQUIDATE_ACCRUE_BORROW_INTEREST_FAILED,\\n LIQUIDATE_ACCRUE_COLLATERAL_INTEREST_FAILED,\\n LIQUIDATE_COLLATERAL_FRESHNESS_CHECK,\\n LIQUIDATE_COMPTROLLER_REJECTION,\\n LIQUIDATE_COMPTROLLER_CALCULATE_AMOUNT_SEIZE_FAILED,\\n LIQUIDATE_CLOSE_AMOUNT_IS_UINT_MAX,\\n LIQUIDATE_CLOSE_AMOUNT_IS_ZERO,\\n LIQUIDATE_FRESHNESS_CHECK,\\n LIQUIDATE_LIQUIDATOR_IS_BORROWER,\\n LIQUIDATE_REPAY_BORROW_FRESH_FAILED,\\n LIQUIDATE_SEIZE_BALANCE_INCREMENT_FAILED,\\n LIQUIDATE_SEIZE_BALANCE_DECREMENT_FAILED,\\n LIQUIDATE_SEIZE_COMPTROLLER_REJECTION,\\n LIQUIDATE_SEIZE_LIQUIDATOR_IS_BORROWER,\\n LIQUIDATE_SEIZE_TOO_MUCH,\\n MINT_ACCRUE_INTEREST_FAILED,\\n MINT_COMPTROLLER_REJECTION,\\n MINT_EXCHANGE_CALCULATION_FAILED,\\n MINT_EXCHANGE_RATE_READ_FAILED,\\n MINT_FRESHNESS_CHECK,\\n MINT_NEW_ACCOUNT_BALANCE_CALCULATION_FAILED,\\n MINT_NEW_TOTAL_SUPPLY_CALCULATION_FAILED,\\n MINT_TRANSFER_IN_FAILED,\\n MINT_TRANSFER_IN_NOT_POSSIBLE,\\n REDEEM_ACCRUE_INTEREST_FAILED,\\n REDEEM_COMPTROLLER_REJECTION,\\n REDEEM_EXCHANGE_TOKENS_CALCULATION_FAILED,\\n REDEEM_EXCHANGE_AMOUNT_CALCULATION_FAILED,\\n REDEEM_EXCHANGE_RATE_READ_FAILED,\\n REDEEM_FRESHNESS_CHECK,\\n REDEEM_NEW_ACCOUNT_BALANCE_CALCULATION_FAILED,\\n REDEEM_NEW_TOTAL_SUPPLY_CALCULATION_FAILED,\\n REDEEM_TRANSFER_OUT_NOT_POSSIBLE,\\n REDUCE_RESERVES_ACCRUE_INTEREST_FAILED,\\n REDUCE_RESERVES_ADMIN_CHECK,\\n REDUCE_RESERVES_CASH_NOT_AVAILABLE,\\n REDUCE_RESERVES_FRESH_CHECK,\\n REDUCE_RESERVES_VALIDATION,\\n REPAY_BEHALF_ACCRUE_INTEREST_FAILED,\\n REPAY_BORROW_ACCRUE_INTEREST_FAILED,\\n REPAY_BORROW_ACCUMULATED_BALANCE_CALCULATION_FAILED,\\n REPAY_BORROW_COMPTROLLER_REJECTION,\\n REPAY_BORROW_FRESHNESS_CHECK,\\n REPAY_BORROW_NEW_ACCOUNT_BORROW_BALANCE_CALCULATION_FAILED,\\n REPAY_BORROW_NEW_TOTAL_BALANCE_CALCULATION_FAILED,\\n REPAY_BORROW_TRANSFER_IN_NOT_POSSIBLE,\\n SET_COLLATERAL_FACTOR_OWNER_CHECK,\\n SET_COLLATERAL_FACTOR_VALIDATION,\\n SET_COMPTROLLER_OWNER_CHECK,\\n SET_INTEREST_RATE_MODEL_ACCRUE_INTEREST_FAILED,\\n SET_INTEREST_RATE_MODEL_FRESH_CHECK,\\n SET_INTEREST_RATE_MODEL_OWNER_CHECK,\\n SET_MAX_ASSETS_OWNER_CHECK,\\n SET_ORACLE_MARKET_NOT_LISTED,\\n SET_PENDING_ADMIN_OWNER_CHECK,\\n SET_RESERVE_FACTOR_ACCRUE_INTEREST_FAILED,\\n SET_RESERVE_FACTOR_ADMIN_CHECK,\\n SET_RESERVE_FACTOR_FRESH_CHECK,\\n SET_RESERVE_FACTOR_BOUNDS_CHECK,\\n TRANSFER_COMPTROLLER_REJECTION,\\n TRANSFER_NOT_ALLOWED,\\n TRANSFER_NOT_ENOUGH,\\n TRANSFER_TOO_MUCH,\\n ADD_RESERVES_ACCRUE_INTEREST_FAILED,\\n ADD_RESERVES_FRESH_CHECK,\\n ADD_RESERVES_TRANSFER_IN_NOT_POSSIBLE\\n }\\n\\n /**\\n * @dev `error` corresponds to enum Error; `info` corresponds to enum FailureInfo, and `detail` is an arbitrary\\n * contract-specific code that enables us to report opaque error codes from upgradeable contracts.\\n **/\\n event Failure(uint error, uint info, uint detail);\\n\\n /**\\n * @dev use this when reporting a known error from the money market or a non-upgradeable collaborator\\n */\\n function fail(Error err, FailureInfo info) internal returns (uint) {\\n emit Failure(uint(err), uint(info), 0);\\n\\n return uint(err);\\n }\\n\\n /**\\n * @dev use this when reporting an opaque error from an upgradeable collaborator contract\\n */\\n function failOpaque(Error err, FailureInfo info, uint opaqueError) internal returns (uint) {\\n emit Failure(uint(err), uint(info), opaqueError);\\n\\n return uint(err);\\n }\\n}\",\"keccak256\":\"0x5179afb1071c0fd555e5c1f1d2565f72dbe1740cc3dd02f6e52037f150afc5c9\"},\"contracts/Exponential.sol\":{\"content\":\"pragma solidity ^0.5.16;\\n\\nimport \\\"./CarefulMath.sol\\\";\\nimport \\\"./ExponentialNoError.sol\\\";\\n\\n/**\\n * @title Exponential module for storing fixed-precision decimals\\n * @author Compound\\n * @dev Legacy contract for compatibility reasons with existing contracts that still use MathError\\n * @notice Exp is a struct which stores decimals with a fixed precision of 18 decimal places.\\n * Thus, if we wanted to store the 5.1, mantissa would store 5.1e18. That is:\\n * `Exp({mantissa: 5100000000000000000})`.\\n */\\ncontract Exponential is CarefulMath, ExponentialNoError {\\n /**\\n * @dev Creates an exponential from numerator and denominator values.\\n * Note: Returns an error if (`num` * 10e18) > MAX_INT,\\n * or if `denom` is zero.\\n */\\n function getExp(uint num, uint denom) pure internal returns (MathError, Exp memory) {\\n (MathError err0, uint scaledNumerator) = mulUInt(num, expScale);\\n if (err0 != MathError.NO_ERROR) {\\n return (err0, Exp({mantissa: 0}));\\n }\\n\\n (MathError err1, uint rational) = divUInt(scaledNumerator, denom);\\n if (err1 != MathError.NO_ERROR) {\\n return (err1, Exp({mantissa: 0}));\\n }\\n\\n return (MathError.NO_ERROR, Exp({mantissa: rational}));\\n }\\n\\n /**\\n * @dev Adds two exponentials, returning a new exponential.\\n */\\n function addExp(Exp memory a, Exp memory b) pure internal returns (MathError, Exp memory) {\\n (MathError error, uint result) = addUInt(a.mantissa, b.mantissa);\\n\\n return (error, Exp({mantissa: result}));\\n }\\n\\n /**\\n * @dev Subtracts two exponentials, returning a new exponential.\\n */\\n function subExp(Exp memory a, Exp memory b) pure internal returns (MathError, Exp memory) {\\n (MathError error, uint result) = subUInt(a.mantissa, b.mantissa);\\n\\n return (error, Exp({mantissa: result}));\\n }\\n\\n /**\\n * @dev Multiply an Exp by a scalar, returning a new Exp.\\n */\\n function mulScalar(Exp memory a, uint scalar) pure internal returns (MathError, Exp memory) {\\n (MathError err0, uint scaledMantissa) = mulUInt(a.mantissa, scalar);\\n if (err0 != MathError.NO_ERROR) {\\n return (err0, Exp({mantissa: 0}));\\n }\\n\\n return (MathError.NO_ERROR, Exp({mantissa: scaledMantissa}));\\n }\\n\\n /**\\n * @dev Multiply an Exp by a scalar, then truncate to return an unsigned integer.\\n */\\n function mulScalarTruncate(Exp memory a, uint scalar) pure internal returns (MathError, uint) {\\n (MathError err, Exp memory product) = mulScalar(a, scalar);\\n if (err != MathError.NO_ERROR) {\\n return (err, 0);\\n }\\n\\n return (MathError.NO_ERROR, truncate(product));\\n }\\n\\n /**\\n * @dev Multiply an Exp by a scalar, truncate, then add an to an unsigned integer, returning an unsigned integer.\\n */\\n function mulScalarTruncateAddUInt(Exp memory a, uint scalar, uint addend) pure internal returns (MathError, uint) {\\n (MathError err, Exp memory product) = mulScalar(a, scalar);\\n if (err != MathError.NO_ERROR) {\\n return (err, 0);\\n }\\n\\n return addUInt(truncate(product), addend);\\n }\\n\\n /**\\n * @dev Divide an Exp by a scalar, returning a new Exp.\\n */\\n function divScalar(Exp memory a, uint scalar) pure internal returns (MathError, Exp memory) {\\n (MathError err0, uint descaledMantissa) = divUInt(a.mantissa, scalar);\\n if (err0 != MathError.NO_ERROR) {\\n return (err0, Exp({mantissa: 0}));\\n }\\n\\n return (MathError.NO_ERROR, Exp({mantissa: descaledMantissa}));\\n }\\n\\n /**\\n * @dev Divide a scalar by an Exp, returning a new Exp.\\n */\\n function divScalarByExp(uint scalar, Exp memory divisor) pure internal returns (MathError, Exp memory) {\\n /*\\n We are doing this as:\\n getExp(mulUInt(expScale, scalar), divisor.mantissa)\\n\\n How it works:\\n Exp = a / b;\\n Scalar = s;\\n `s / (a / b)` = `b * s / a` and since for an Exp `a = mantissa, b = expScale`\\n */\\n (MathError err0, uint numerator) = mulUInt(expScale, scalar);\\n if (err0 != MathError.NO_ERROR) {\\n return (err0, Exp({mantissa: 0}));\\n }\\n return getExp(numerator, divisor.mantissa);\\n }\\n\\n /**\\n * @dev Divide a scalar by an Exp, then truncate to return an unsigned integer.\\n */\\n function divScalarByExpTruncate(uint scalar, Exp memory divisor) pure internal returns (MathError, uint) {\\n (MathError err, Exp memory fraction) = divScalarByExp(scalar, divisor);\\n if (err != MathError.NO_ERROR) {\\n return (err, 0);\\n }\\n\\n return (MathError.NO_ERROR, truncate(fraction));\\n }\\n\\n /**\\n * @dev Multiplies two exponentials, returning a new exponential.\\n */\\n function mulExp(Exp memory a, Exp memory b) pure internal returns (MathError, Exp memory) {\\n\\n (MathError err0, uint doubleScaledProduct) = mulUInt(a.mantissa, b.mantissa);\\n if (err0 != MathError.NO_ERROR) {\\n return (err0, Exp({mantissa: 0}));\\n }\\n\\n // We add half the scale before dividing so that we get rounding instead of truncation.\\n // See \\\"Listing 6\\\" and text above it at https://accu.org/index.php/journals/1717\\n // Without this change, a result like 6.6...e-19 will be truncated to 0 instead of being rounded to 1e-18.\\n (MathError err1, uint doubleScaledProductWithHalfScale) = addUInt(halfExpScale, doubleScaledProduct);\\n if (err1 != MathError.NO_ERROR) {\\n return (err1, Exp({mantissa: 0}));\\n }\\n\\n (MathError err2, uint product) = divUInt(doubleScaledProductWithHalfScale, expScale);\\n // The only error `div` can return is MathError.DIVISION_BY_ZERO but we control `expScale` and it is not zero.\\n assert(err2 == MathError.NO_ERROR);\\n\\n return (MathError.NO_ERROR, Exp({mantissa: product}));\\n }\\n\\n /**\\n * @dev Multiplies two exponentials given their mantissas, returning a new exponential.\\n */\\n function mulExp(uint a, uint b) pure internal returns (MathError, Exp memory) {\\n return mulExp(Exp({mantissa: a}), Exp({mantissa: b}));\\n }\\n\\n /**\\n * @dev Multiplies three exponentials, returning a new exponential.\\n */\\n function mulExp3(Exp memory a, Exp memory b, Exp memory c) pure internal returns (MathError, Exp memory) {\\n (MathError err, Exp memory ab) = mulExp(a, b);\\n if (err != MathError.NO_ERROR) {\\n return (err, ab);\\n }\\n return mulExp(ab, c);\\n }\\n\\n /**\\n * @dev Divides two exponentials, returning a new exponential.\\n * (a/scale) / (b/scale) = (a/scale) * (scale/b) = a/b,\\n * which we can scale as an Exp by calling getExp(a.mantissa, b.mantissa)\\n */\\n function divExp(Exp memory a, Exp memory b) pure internal returns (MathError, Exp memory) {\\n return getExp(a.mantissa, b.mantissa);\\n }\\n}\\n\",\"keccak256\":\"0x6ff054d65a0289dbb43c9f437d6909f9cf1207c9b8f984b3cb8e97a9de76a434\"},\"contracts/ExponentialNoError.sol\":{\"content\":\"pragma solidity ^0.5.16;\\n\\n/**\\n * @title Exponential module for storing fixed-precision decimals\\n * @author Compound\\n * @notice Exp is a struct which stores decimals with a fixed precision of 18 decimal places.\\n * Thus, if we wanted to store the 5.1, mantissa would store 5.1e18. That is:\\n * `Exp({mantissa: 5100000000000000000})`.\\n */\\ncontract ExponentialNoError {\\n uint constant expScale = 1e18;\\n uint constant doubleScale = 1e36;\\n uint constant halfExpScale = expScale/2;\\n uint constant mantissaOne = expScale;\\n\\n struct Exp {\\n uint mantissa;\\n }\\n\\n struct Double {\\n uint mantissa;\\n }\\n\\n /**\\n * @dev Truncates the given exp to a whole number value.\\n * For example, truncate(Exp{mantissa: 15 * expScale}) = 15\\n */\\n function truncate(Exp memory exp) pure internal returns (uint) {\\n // Note: We are not using careful math here as we're performing a division that cannot fail\\n return exp.mantissa / expScale;\\n }\\n\\n /**\\n * @dev Multiply an Exp by a scalar, then truncate to return an unsigned integer.\\n */\\n function mul_ScalarTruncate(Exp memory a, uint scalar) pure internal returns (uint) {\\n Exp memory product = mul_(a, scalar);\\n return truncate(product);\\n }\\n\\n /**\\n * @dev Multiply an Exp by a scalar, truncate, then add an to an unsigned integer, returning an unsigned integer.\\n */\\n function mul_ScalarTruncateAddUInt(Exp memory a, uint scalar, uint addend) pure internal returns (uint) {\\n Exp memory product = mul_(a, scalar);\\n return add_(truncate(product), addend);\\n }\\n\\n /**\\n * @dev Checks if first Exp is less than second Exp.\\n */\\n function lessThanExp(Exp memory left, Exp memory right) pure internal returns (bool) {\\n return left.mantissa < right.mantissa;\\n }\\n\\n /**\\n * @dev Checks if left Exp <= right Exp.\\n */\\n function lessThanOrEqualExp(Exp memory left, Exp memory right) pure internal returns (bool) {\\n return left.mantissa <= right.mantissa;\\n }\\n\\n /**\\n * @dev Checks if left Exp > right Exp.\\n */\\n function greaterThanExp(Exp memory left, Exp memory right) pure internal returns (bool) {\\n return left.mantissa > right.mantissa;\\n }\\n\\n /**\\n * @dev returns true if Exp is exactly zero\\n */\\n function isZeroExp(Exp memory value) pure internal returns (bool) {\\n return value.mantissa == 0;\\n }\\n\\n function safe224(uint n, string memory errorMessage) pure internal returns (uint224) {\\n require(n < 2**224, errorMessage);\\n return uint224(n);\\n }\\n\\n function safe32(uint n, string memory errorMessage) pure internal returns (uint32) {\\n require(n < 2**32, errorMessage);\\n return uint32(n);\\n }\\n\\n function add_(Exp memory a, Exp memory b) pure internal returns (Exp memory) {\\n return Exp({mantissa: add_(a.mantissa, b.mantissa)});\\n }\\n\\n function add_(Double memory a, Double memory b) pure internal returns (Double memory) {\\n return Double({mantissa: add_(a.mantissa, b.mantissa)});\\n }\\n\\n function add_(uint a, uint b) pure internal returns (uint) {\\n return add_(a, b, \\\"addition overflow\\\");\\n }\\n\\n function add_(uint a, uint b, string memory errorMessage) pure internal returns (uint) {\\n uint c = a + b;\\n require(c >= a, errorMessage);\\n return c;\\n }\\n\\n function sub_(Exp memory a, Exp memory b) pure internal returns (Exp memory) {\\n return Exp({mantissa: sub_(a.mantissa, b.mantissa)});\\n }\\n\\n function sub_(Double memory a, Double memory b) pure internal returns (Double memory) {\\n return Double({mantissa: sub_(a.mantissa, b.mantissa)});\\n }\\n\\n function sub_(uint a, uint b) pure internal returns (uint) {\\n return sub_(a, b, \\\"subtraction underflow\\\");\\n }\\n\\n function sub_(uint a, uint b, string memory errorMessage) pure internal returns (uint) {\\n require(b <= a, errorMessage);\\n return a - b;\\n }\\n\\n function mul_(Exp memory a, Exp memory b) pure internal returns (Exp memory) {\\n return Exp({mantissa: mul_(a.mantissa, b.mantissa) / expScale});\\n }\\n\\n function mul_(Exp memory a, uint b) pure internal returns (Exp memory) {\\n return Exp({mantissa: mul_(a.mantissa, b)});\\n }\\n\\n function mul_(uint a, Exp memory b) pure internal returns (uint) {\\n return mul_(a, b.mantissa) / expScale;\\n }\\n\\n function mul_(Double memory a, Double memory b) pure internal returns (Double memory) {\\n return Double({mantissa: mul_(a.mantissa, b.mantissa) / doubleScale});\\n }\\n\\n function mul_(Double memory a, uint b) pure internal returns (Double memory) {\\n return Double({mantissa: mul_(a.mantissa, b)});\\n }\\n\\n function mul_(uint a, Double memory b) pure internal returns (uint) {\\n return mul_(a, b.mantissa) / doubleScale;\\n }\\n\\n function mul_(uint a, uint b) pure internal returns (uint) {\\n return mul_(a, b, \\\"multiplication overflow\\\");\\n }\\n\\n function mul_(uint a, uint b, string memory errorMessage) pure internal returns (uint) {\\n if (a == 0 || b == 0) {\\n return 0;\\n }\\n uint c = a * b;\\n require(c / a == b, errorMessage);\\n return c;\\n }\\n\\n function div_(Exp memory a, Exp memory b) pure internal returns (Exp memory) {\\n return Exp({mantissa: div_(mul_(a.mantissa, expScale), b.mantissa)});\\n }\\n\\n function div_(Exp memory a, uint b) pure internal returns (Exp memory) {\\n return Exp({mantissa: div_(a.mantissa, b)});\\n }\\n\\n function div_(uint a, Exp memory b) pure internal returns (uint) {\\n return div_(mul_(a, expScale), b.mantissa);\\n }\\n\\n function div_(Double memory a, Double memory b) pure internal returns (Double memory) {\\n return Double({mantissa: div_(mul_(a.mantissa, doubleScale), b.mantissa)});\\n }\\n\\n function div_(Double memory a, uint b) pure internal returns (Double memory) {\\n return Double({mantissa: div_(a.mantissa, b)});\\n }\\n\\n function div_(uint a, Double memory b) pure internal returns (uint) {\\n return div_(mul_(a, doubleScale), b.mantissa);\\n }\\n\\n function div_(uint a, uint b) pure internal returns (uint) {\\n return div_(a, b, \\\"divide by zero\\\");\\n }\\n\\n function div_(uint a, uint b, string memory errorMessage) pure internal returns (uint) {\\n require(b > 0, errorMessage);\\n return a / b;\\n }\\n\\n function fraction(uint a, uint b) pure internal returns (Double memory) {\\n return Double({mantissa: div_(mul_(a, doubleScale), b)});\\n }\\n}\\n\",\"keccak256\":\"0x7cb184b7cee71a5e707053dfba7eebbd46f11974004028100510ccce19b6694d\"},\"contracts/Fed.sol\":{\"content\":\"pragma solidity ^0.5.16;\\n\\nimport \\\"./SafeMath.sol\\\";\\nimport \\\"./CErc20.sol\\\";\\nimport \\\"./ERC20.sol\\\";\\nimport \\\"./Exponential.sol\\\";\\n\\ncontract Fed {\\n using SafeMath for uint;\\n\\n CErc20 public ctoken;\\n ERC20 public underlying;\\n address public chair; // Fed Chair\\n address public gov;\\n uint public supply;\\n\\n event Expansion(uint amount);\\n event Contraction(uint amount);\\n\\n constructor(CErc20 ctoken_, address gov_) public {\\n ctoken = ctoken_;\\n underlying = ERC20(ctoken_.underlying());\\n underlying.approve(address(ctoken), uint(-1));\\n chair = msg.sender;\\n gov = gov_;\\n }\\n\\n function changeGov(address newGov_) public {\\n require(msg.sender == gov, \\\"ONLY GOV\\\");\\n gov = newGov_;\\n }\\n\\n function changeChair(address newChair_) public {\\n require(msg.sender == gov, \\\"ONLY GOV\\\");\\n chair = newChair_;\\n }\\n\\n function resign() public {\\n require(msg.sender == chair, \\\"ONLY CHAIR\\\");\\n chair = address(0);\\n }\\n\\n function expansion(uint amount) public {\\n require(msg.sender == chair, \\\"ONLY CHAIR\\\");\\n underlying.mint(address(this), amount);\\n require(ctoken.mint(amount) == 0, 'Supplying failed');\\n supply = supply.add(amount);\\n emit Expansion(amount);\\n }\\n\\n function contraction(uint amount) public {\\n require(msg.sender == chair, \\\"ONLY CHAIR\\\");\\n require(amount <= supply, \\\"AMOUNT TOO BIG\\\"); // can't burn profits\\n require(ctoken.redeemUnderlying(amount) == 0, \\\"Redeem failed\\\");\\n underlying.burn(amount);\\n supply = supply.sub(amount);\\n emit Contraction(amount);\\n }\\n\\n function takeProfit() public {\\n uint underlyingBalance = ctoken.balanceOfUnderlying(address(this));\\n uint profit = underlyingBalance.sub(supply);\\n if(profit > 0) {\\n require(ctoken.redeemUnderlying(profit) == 0, \\\"Redeem failed\\\");\\n underlying.transfer(gov, profit);\\n }\\n }\\n \\n}\",\"keccak256\":\"0xaed3e60a76811a6f9114a5fa38064d0fc8a638e85278d9c4c56f63e2b6c74480\"},\"contracts/InterestRateModel.sol\":{\"content\":\"pragma solidity ^0.5.16;\\n\\n/**\\n * @title Compound's InterestRateModel Interface\\n * @author Compound\\n */\\ncontract InterestRateModel {\\n /// @notice Indicator that this is an InterestRateModel contract (for inspection)\\n bool public constant isInterestRateModel = true;\\n\\n /**\\n * @notice Calculates the current borrow interest rate per block\\n * @param cash The total amount of cash the market has\\n * @param borrows The total amount of borrows the market has outstanding\\n * @param reserves The total amount of reserves the market has\\n * @return The borrow rate per block (as a percentage, and scaled by 1e18)\\n */\\n function getBorrowRate(uint cash, uint borrows, uint reserves) external view returns (uint);\\n\\n /**\\n * @notice Calculates the current supply interest rate per block\\n * @param cash The total amount of cash the market has\\n * @param borrows The total amount of borrows the market has outstanding\\n * @param reserves The total amount of reserves the market has\\n * @param reserveFactorMantissa The current reserve factor the market has\\n * @return The supply rate per block (as a percentage, and scaled by 1e18)\\n */\\n function getSupplyRate(uint cash, uint borrows, uint reserves, uint reserveFactorMantissa) external view returns (uint);\\n\\n}\\n\",\"keccak256\":\"0x929282d73c79e6d700ebe79f9fafc1e414b3848acff5a56d6740afd1dc908678\"},\"contracts/SafeMath.sol\":{\"content\":\"pragma solidity ^0.5.16;\\n\\n// From https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/contracts/math/Math.sol\\n// Subject to the MIT license.\\n\\n/**\\n * @dev Wrappers over Solidity's arithmetic operations with added overflow\\n * checks.\\n *\\n * Arithmetic operations in Solidity wrap on overflow. This can easily result\\n * in bugs, because programmers usually assume that an overflow raises an\\n * error, which is the standard behavior in high level programming languages.\\n * `SafeMath` restores this intuition by reverting the transaction when an\\n * operation overflows.\\n *\\n * Using this library instead of the unchecked operations eliminates an entire\\n * class of bugs, so it's recommended to use it always.\\n */\\nlibrary SafeMath {\\n /**\\n * @dev Returns the addition of two unsigned integers, reverting on overflow.\\n *\\n * Counterpart to Solidity's `+` operator.\\n *\\n * Requirements:\\n * - Addition cannot overflow.\\n */\\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\\n uint256 c = a + b;\\n require(c >= a, \\\"SafeMath: addition overflow\\\");\\n\\n return c;\\n }\\n\\n /**\\n * @dev Returns the addition of two unsigned integers, reverting with custom message on overflow.\\n *\\n * Counterpart to Solidity's `+` operator.\\n *\\n * Requirements:\\n * - Addition cannot overflow.\\n */\\n function add(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {\\n uint256 c = a + b;\\n require(c >= a, errorMessage);\\n\\n return c;\\n }\\n\\n /**\\n * @dev Returns the subtraction of two unsigned integers, reverting on underflow (when the result is negative).\\n *\\n * Counterpart to Solidity's `-` operator.\\n *\\n * Requirements:\\n * - Subtraction cannot underflow.\\n */\\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\\n return sub(a, b, \\\"SafeMath: subtraction underflow\\\");\\n }\\n\\n /**\\n * @dev Returns the subtraction of two unsigned integers, reverting with custom message on underflow (when the result is negative).\\n *\\n * Counterpart to Solidity's `-` operator.\\n *\\n * Requirements:\\n * - Subtraction cannot underflow.\\n */\\n function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {\\n require(b <= a, errorMessage);\\n uint256 c = a - b;\\n\\n return c;\\n }\\n\\n /**\\n * @dev Returns the multiplication of two unsigned integers, reverting on overflow.\\n *\\n * Counterpart to Solidity's `*` operator.\\n *\\n * Requirements:\\n * - Multiplication cannot overflow.\\n */\\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\\n // Gas optimization: this is cheaper than requiring 'a' not being zero, but the\\n // benefit is lost if 'b' is also tested.\\n // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522\\n if (a == 0) {\\n return 0;\\n }\\n\\n uint256 c = a * b;\\n require(c / a == b, \\\"SafeMath: multiplication overflow\\\");\\n\\n return c;\\n }\\n\\n /**\\n * @dev Returns the multiplication of two unsigned integers, reverting on overflow.\\n *\\n * Counterpart to Solidity's `*` operator.\\n *\\n * Requirements:\\n * - Multiplication cannot overflow.\\n */\\n function mul(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {\\n // Gas optimization: this is cheaper than requiring 'a' not being zero, but the\\n // benefit is lost if 'b' is also tested.\\n // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522\\n if (a == 0) {\\n return 0;\\n }\\n\\n uint256 c = a * b;\\n require(c / a == b, errorMessage);\\n\\n return c;\\n }\\n\\n /**\\n * @dev Returns the integer division of two unsigned integers.\\n * Reverts on division by zero. The result is rounded towards zero.\\n *\\n * Counterpart to Solidity's `/` operator. Note: this function uses a\\n * `revert` opcode (which leaves remaining gas untouched) while Solidity\\n * uses an invalid opcode to revert (consuming all remaining gas).\\n *\\n * Requirements:\\n * - The divisor cannot be zero.\\n */\\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\\n return div(a, b, \\\"SafeMath: division by zero\\\");\\n }\\n\\n /**\\n * @dev Returns the integer division of two unsigned integers.\\n * Reverts with custom message on division by zero. The result is rounded towards zero.\\n *\\n * Counterpart to Solidity's `/` operator. Note: this function uses a\\n * `revert` opcode (which leaves remaining gas untouched) while Solidity\\n * uses an invalid opcode to revert (consuming all remaining gas).\\n *\\n * Requirements:\\n * - The divisor cannot be zero.\\n */\\n function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {\\n // Solidity only automatically asserts when dividing by 0\\n require(b > 0, errorMessage);\\n uint256 c = a / b;\\n // assert(a == b * c + a % b); // There is no case in which this doesn't hold\\n\\n return c;\\n }\\n\\n /**\\n * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),\\n * Reverts when dividing by zero.\\n *\\n * Counterpart to Solidity's `%` operator. This function uses a `revert`\\n * opcode (which leaves remaining gas untouched) while Solidity uses an\\n * invalid opcode to revert (consuming all remaining gas).\\n *\\n * Requirements:\\n * - The divisor cannot be zero.\\n */\\n function mod(uint256 a, uint256 b) internal pure returns (uint256) {\\n return mod(a, b, \\\"SafeMath: modulo by zero\\\");\\n }\\n\\n /**\\n * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),\\n * Reverts with custom message when dividing by zero.\\n *\\n * Counterpart to Solidity's `%` operator. This function uses a `revert`\\n * opcode (which leaves remaining gas untouched) while Solidity uses an\\n * invalid opcode to revert (consuming all remaining gas).\\n *\\n * Requirements:\\n * - The divisor cannot be zero.\\n */\\n function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {\\n require(b != 0, errorMessage);\\n return a % b;\\n }\\n}\\n\",\"keccak256\":\"0x6653e37ff57a02b7b7f20199bb0fd5685756ced19a67f53328b42c9d2167ffd2\"}},\"version\":1}", + "bytecode": 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