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- Contract name:
- CErc20Delegator
- Optimization enabled
- true
- Compiler version
- v0.5.16+commit.9c3226ce
- Optimization runs
- 20
- Verified at
- 2022-12-01T07:31:42.529649Z
Constructor Arguments
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
Arg [0] (address) : 0x8059e671be1e76f8db5155bf4520f86acfdc5561
Arg [1] (address) : 0xec1e6e331e990a0d8e40ac51f773e9c998ec7bc3
Arg [2] (address) : 0x01593fbe2c91d7f4e7c2e75c954eb2757101ff04
Arg [3] (uint256) : 2000000
Arg [4] (string) : Filda WBTC
Arg [5] (string) : fWBTC
Arg [6] (uint8) : 18
Arg [7] (address) : 0x05ddc595fd33d7b2ab302143c420d0e7f21b622a
Arg [8] (address) : 0xdc17ee4ef70317433d8083da696e63b46721b6b9
Arg [9] (bytes) : 00
Contract source code
// File: contracts/compound/ComptrollerInterface.sol
pragma solidity ^0.5.16;
contract ComptrollerInterface {
/// @notice Indicator that this is a Comptroller contract (for inspection)
bool public constant isComptroller = true;
/*** Assets You Are In ***/
function enterMarkets(address[] calldata cTokens) external returns (uint[] memory);
function exitMarket(address cToken) external returns (uint);
/*** Policy Hooks ***/
function mintAllowed(address cToken, address minter, uint mintAmount) external returns (uint);
function redeemAllowed(address cToken, address redeemer, uint redeemTokens) external returns (uint);
function redeemVerify(address cToken, address redeemer, uint redeemAmount, uint redeemTokens) external;
function borrowAllowed(address cToken, address borrower, uint borrowAmount) external returns (uint);
function repayBorrowAllowed(
address cToken,
address payer,
address borrower,
uint repayAmount) external returns (uint);
function liquidateBorrowAllowed(
address cTokenBorrowed,
address cTokenCollateral,
address liquidator,
address borrower,
uint repayAmount) external returns (uint);
function seizeAllowed(
address cTokenCollateral,
address cTokenBorrowed,
address liquidator,
address borrower,
uint seizeTokens) external returns (uint);
function transferAllowed(address cToken, address src, address dst, uint transferTokens) external returns (uint);
/*** Liquidity/Liquidation Calculations ***/
function liquidateCalculateSeizeTokens(
address cTokenBorrowed,
address cTokenCollateral,
uint repayAmount) external view returns (uint, uint);
function getLiquidationIncentive(address cTokenCollateral) public view returns (uint);
function safetyGuardian() external view returns (address);
}
// File: contracts/compound/InterestRateModel.sol
pragma solidity ^0.5.16;
/**
* @title Compound's InterestRateModel Interface
* @author Compound
*/
contract InterestRateModel {
/// @notice Indicator that this is an InterestRateModel contract (for inspection)
bool public constant isInterestRateModel = true;
/**
* @notice Calculates the current borrow interest rate per block
* @param cash The total amount of cash the market has
* @param borrows The total amount of borrows the market has outstanding
* @param reserves The total amnount of reserves the market has
* @return The borrow rate per block (as a percentage, and scaled by 1e18)
*/
function getBorrowRate(uint cash, uint borrows, uint reserves) external view returns (uint);
/**
* @notice Calculates the current supply interest rate per block
* @param cash The total amount of cash the market has
* @param borrows The total amount of borrows the market has outstanding
* @param reserves The total amnount of reserves the market has
* @param reserveFactorMantissa The current reserve factor the market has
* @return The supply rate per block (as a percentage, and scaled by 1e18)
*/
function getSupplyRate(uint cash, uint borrows, uint reserves, uint reserveFactorMantissa) external view returns (uint);
}
// File: contracts/compound/CTokenInterfaces.sol
pragma solidity ^0.5.16;
contract CTokenStorage {
/**
* @dev Guard variable for re-entrancy checks
*/
bool internal _notEntered;
/**
* @notice EIP-20 token name for this token
*/
string public name;
/**
* @notice EIP-20 token symbol for this token
*/
string public symbol;
/**
* @notice EIP-20 token decimals for this token
*/
uint8 public decimals;
/**
* @notice Maximum borrow rate that can ever be applied (.0005% / block)
*/
uint internal constant borrowRateMaxMantissa = 0.0005e16;
/**
* @notice Maximum fraction of interest that can be set aside for reserves
*/
uint internal constant reserveFactorMaxMantissa = 1e18;
/**
* @notice Administrator for this contract
*/
address payable public admin;
/**
* @notice Pending administrator for this contract
*/
address payable public pendingAdmin;
/**
* @notice Contract which oversees inter-cToken operations
*/
ComptrollerInterface public comptroller;
/**
* @notice Model which tells what the current interest rate should be
*/
InterestRateModel public interestRateModel;
/**
* @notice Initial exchange rate used when minting the first CTokens (used when totalSupply = 0)
*/
uint internal initialExchangeRateMantissa;
/**
* @notice Fraction of interest currently set aside for reserves
*/
uint public reserveFactorMantissa;
/**
* @notice Block number that interest was last accrued at
*/
uint public accrualBlockNumber;
/**
* @notice Accumulator of the total earned interest rate since the opening of the market
*/
uint public borrowIndex;
/**
* @notice Total amount of outstanding borrows of the underlying in this market
*/
uint public totalBorrows;
/**
* @notice Total amount of reserves of the underlying held in this market
*/
uint public totalReserves;
/**
* @notice Total number of tokens in circulation
*/
uint public totalSupply;
/**
* @notice Official record of token balances for each account
*/
mapping (address => uint) internal accountTokens;
/**
* @notice Approved token transfer amounts on behalf of others
*/
mapping (address => mapping (address => uint)) internal transferAllowances;
/**
* @notice Container for borrow balance information
* @member principal Total balance (with accrued interest), after applying the most recent balance-changing action
* @member interestIndex Global borrowIndex as of the most recent balance-changing action
*/
struct BorrowSnapshot {
uint principal;
uint interestIndex;
}
/**
* @notice Mapping of account addresses to outstanding borrow balances
*/
mapping(address => BorrowSnapshot) internal accountBorrows;
}
contract CTokenInterface is CTokenStorage {
/**
* @notice Indicator that this is a CToken contract (for inspection)
*/
bool public constant isCToken = true;
/*** Market Events ***/
/**
* @notice Event emitted when interest is accrued
*/
event AccrueInterest(uint cashPrior, uint interestAccumulated, uint borrowIndex, uint totalBorrows);
/**
* @notice Event emitted when tokens are minted
*/
event Mint(address minter, uint mintAmount, uint mintTokens);
/**
* @notice Event emitted when tokens are redeemed
*/
event Redeem(address redeemer, uint redeemAmount, uint redeemTokens);
/**
* @notice Event emitted when underlying is borrowed
*/
event Borrow(address borrower, uint borrowAmount, uint accountBorrows, uint totalBorrows);
/**
* @notice Event emitted when a borrow is repaid
*/
event RepayBorrow(address payer, address borrower, uint repayAmount, uint accountBorrows, uint totalBorrows);
/**
* @notice Event emitted when a borrow is liquidated
*/
event LiquidateBorrow(address liquidator, address borrower, uint repayAmount, address cTokenCollateral, uint seizeTokens);
/*** Admin Events ***/
/**
* @notice Event emitted when pendingAdmin is changed
*/
event NewPendingAdmin(address oldPendingAdmin, address newPendingAdmin);
/**
* @notice Event emitted when pendingAdmin is accepted, which means admin is updated
*/
event NewAdmin(address oldAdmin, address newAdmin);
/**
* @notice Event emitted when comptroller is changed
*/
event NewComptroller(ComptrollerInterface oldComptroller, ComptrollerInterface newComptroller);
/**
* @notice Event emitted when interestRateModel is changed
*/
event NewMarketInterestRateModel(InterestRateModel oldInterestRateModel, InterestRateModel newInterestRateModel);
/**
* @notice Event emitted when the reserve factor is changed
*/
event NewReserveFactor(uint oldReserveFactorMantissa, uint newReserveFactorMantissa);
/**
* @notice Event emitted when the reserves are added
*/
event ReservesAdded(address benefactor, uint addAmount, uint newTotalReserves);
/**
* @notice Event emitted when the reserves are reduced
*/
event ReservesReduced(address admin, uint reduceAmount, uint newTotalReserves);
/**
* @notice EIP20 Transfer event
*/
event Transfer(address indexed from, address indexed to, uint amount);
/**
* @notice EIP20 Approval event
*/
event Approval(address indexed owner, address indexed spender, uint amount);
/**
* @notice Failure event
*/
event Failure(uint error, uint info, uint detail);
/*** User Interface ***/
function transfer(address dst, uint amount) external returns (bool);
function transferFrom(address src, address dst, uint amount) external returns (bool);
function approve(address spender, uint amount) external returns (bool);
function allowance(address owner, address spender) external view returns (uint);
function balanceOf(address owner) external view returns (uint);
function balanceOfUnderlying(address owner) external returns (uint);
function getAccountSnapshot(address account) external view returns (uint, uint, uint, uint);
function borrowRatePerBlock() external view returns (uint);
function supplyRatePerBlock() external view returns (uint);
function totalBorrowsCurrent() external returns (uint);
function borrowBalanceCurrent(address account) external returns (uint);
function borrowBalanceStored(address account) public view returns (uint);
function exchangeRateCurrent() public returns (uint);
function exchangeRateStored() public view returns (uint);
function getCash() external view returns (uint);
function accrueInterest() public returns (uint);
function seize(address liquidator, address borrower, uint seizeTokens) external returns (uint);
/*** Admin Functions ***/
function _setPendingAdmin(address payable newPendingAdmin) external returns (uint);
function _acceptAdmin() external returns (uint);
function _setComptroller(ComptrollerInterface newComptroller) public returns (uint);
function _setReserveFactor(uint newReserveFactorMantissa) external returns (uint);
function _reduceReserves(uint reduceAmount) external returns (uint);
function _setInterestRateModel(InterestRateModel newInterestRateModel) public returns (uint);
}
contract CErc20Storage {
/**
* @notice Underlying asset for this CToken
*/
address public underlying;
}
contract CErc20Interface is CErc20Storage {
/*** User Interface ***/
function mint(uint mintAmount) external returns (uint);
function redeem(uint redeemTokens) external returns (uint);
function redeemUnderlying(uint redeemAmount) external returns (uint);
function borrow(uint borrowAmount) external returns (uint);
function repayBorrow(uint repayAmount) external returns (uint);
function repayBorrowBehalf(address borrower, uint repayAmount) external returns (uint);
function liquidateBorrow(address borrower, uint repayAmount, CTokenInterface cTokenCollateral) external returns (uint);
/*** Admin Functions ***/
function _addReserves(uint addAmount) external returns (uint);
}
contract CDelegationStorage {
/**
* @notice Implementation address for this contract
*/
address public implementation;
}
contract CDelegatorInterface is CDelegationStorage {
/**
* @notice Emitted when implementation is changed
*/
event NewImplementation(address oldImplementation, address newImplementation);
/**
* @notice Called by the admin to update the implementation of the delegator
* @param implementation_ The address of the new implementation for delegation
* @param allowResign Flag to indicate whether to call _resignImplementation on the old implementation
* @param becomeImplementationData The encoded bytes data to be passed to _becomeImplementation
*/
function _setImplementation(address implementation_, bool allowResign, bytes memory becomeImplementationData) public;
}
contract CDelegateInterface is CDelegationStorage {
/**
* @notice Called by the delegator on a delegate to initialize it for duty
* @dev Should revert if any issues arise which make it unfit for delegation
* @param data The encoded bytes data for any initialization
*/
function _becomeImplementation(bytes memory data) public;
/**
* @notice Called by the delegator on a delegate to forfeit its responsibility
*/
function _resignImplementation() public;
}
// File: contracts/compound/CErc20Delegator.sol
pragma solidity ^0.5.16;
/**
* @title Compound's CErc20Delegator Contract
* @notice CTokens which wrap an EIP-20 underlying and delegate to an implementation
* @author Compound
*/
contract CErc20Delegator is CTokenInterface, CErc20Interface, CDelegatorInterface {
/**
* @notice Construct a new money market
* @param underlying_ The address of the underlying asset
* @param comptroller_ The address of the Comptroller
* @param interestRateModel_ The address of the interest rate model
* @param initialExchangeRateMantissa_ The initial exchange rate, scaled by 1e18
* @param name_ ERC-20 name of this token
* @param symbol_ ERC-20 symbol of this token
* @param decimals_ ERC-20 decimal precision of this token
* @param admin_ Address of the administrator of this token
* @param implementation_ The address of the implementation the contract delegates to
* @param becomeImplementationData The encoded args for becomeImplementation
*/
constructor(address underlying_,
ComptrollerInterface comptroller_,
InterestRateModel interestRateModel_,
uint initialExchangeRateMantissa_,
string memory name_,
string memory symbol_,
uint8 decimals_,
address payable admin_,
address implementation_,
bytes memory becomeImplementationData) public {
// Creator of the contract is admin during initialization
admin = msg.sender;
// First delegate gets to initialize the delegator (i.e. storage contract)
delegateTo(implementation_, abi.encodeWithSignature("initialize(address,address,address,uint256,string,string,uint8)",
underlying_,
comptroller_,
interestRateModel_,
initialExchangeRateMantissa_,
name_,
symbol_,
decimals_));
// New implementations always get set via the settor (post-initialize)
_setImplementation(implementation_, false, becomeImplementationData);
// Set the proper admin now that initialization is done
admin = admin_;
}
/**
* @notice Called by the admin to update the implementation of the delegator
* @param implementation_ The address of the new implementation for delegation
* @param allowResign Flag to indicate whether to call _resignImplementation on the old implementation
* @param becomeImplementationData The encoded bytes data to be passed to _becomeImplementation
*/
function _setImplementation(address implementation_, bool allowResign, bytes memory becomeImplementationData) public {
require(msg.sender == admin, "CErc20Delegator::_setImplementation: Caller must be admin");
if (allowResign) {
delegateToImplementation(abi.encodeWithSignature("_resignImplementation()"));
}
address oldImplementation = implementation;
implementation = implementation_;
delegateToImplementation(abi.encodeWithSignature("_becomeImplementation(bytes)", becomeImplementationData));
emit NewImplementation(oldImplementation, implementation);
}
/**
* @notice Sender supplies assets into the market and receives cTokens in exchange
* @dev Accrues interest whether or not the operation succeeds, unless reverted
* @param mintAmount The amount of the underlying asset to supply
* @return uint 0=success, otherwise a failure (see ErrorReporter.sol for details)
*/
function mint(uint mintAmount) external returns (uint) {
mintAmount; // Shh
delegateAndReturn();
}
/**
* @notice Sender redeems cTokens in exchange for the underlying asset
* @dev Accrues interest whether or not the operation succeeds, unless reverted
* @param redeemTokens The number of cTokens to redeem into underlying
* @return uint 0=success, otherwise a failure (see ErrorReporter.sol for details)
*/
function redeem(uint redeemTokens) external returns (uint) {
redeemTokens; // Shh
delegateAndReturn();
}
/**
* @notice Sender redeems cTokens in exchange for a specified amount of underlying asset
* @dev Accrues interest whether or not the operation succeeds, unless reverted
* @param redeemAmount The amount of underlying to redeem
* @return uint 0=success, otherwise a failure (see ErrorReporter.sol for details)
*/
function redeemUnderlying(uint redeemAmount) external returns (uint) {
redeemAmount; // Shh
delegateAndReturn();
}
/**
* @notice Sender borrows assets from the protocol to their own address
* @param borrowAmount The amount of the underlying asset to borrow
* @return uint 0=success, otherwise a failure (see ErrorReporter.sol for details)
*/
function borrow(uint borrowAmount) external returns (uint) {
borrowAmount; // Shh
delegateAndReturn();
}
/**
* @notice Sender repays their own borrow
* @param repayAmount The amount to repay
* @return uint 0=success, otherwise a failure (see ErrorReporter.sol for details)
*/
function repayBorrow(uint repayAmount) external returns (uint) {
repayAmount; // Shh
delegateAndReturn();
}
/**
* @notice Sender repays a borrow belonging to borrower
* @param borrower the account with the debt being payed off
* @param repayAmount The amount to repay
* @return uint 0=success, otherwise a failure (see ErrorReporter.sol for details)
*/
function repayBorrowBehalf(address borrower, uint repayAmount) external returns (uint) {
borrower; repayAmount; // Shh
delegateAndReturn();
}
/**
* @notice The sender liquidates the borrowers collateral.
* The collateral seized is transferred to the liquidator.
* @param borrower The borrower of this cToken to be liquidated
* @param cTokenCollateral The market in which to seize collateral from the borrower
* @param repayAmount The amount of the underlying borrowed asset to repay
* @return uint 0=success, otherwise a failure (see ErrorReporter.sol for details)
*/
function liquidateBorrow(address borrower, uint repayAmount, CTokenInterface cTokenCollateral) external returns (uint) {
borrower; repayAmount; cTokenCollateral; // Shh
delegateAndReturn();
}
/**
* @notice Transfer `amount` tokens from `msg.sender` to `dst`
* @param dst The address of the destination account
* @param amount The number of tokens to transfer
* @return Whether or not the transfer succeeded
*/
function transfer(address dst, uint amount) external returns (bool) {
dst; amount; // Shh
delegateAndReturn();
}
/**
* @notice Transfer `amount` tokens from `src` to `dst`
* @param src The address of the source account
* @param dst The address of the destination account
* @param amount The number of tokens to transfer
* @return Whether or not the transfer succeeded
*/
function transferFrom(address src, address dst, uint256 amount) external returns (bool) {
src; dst; amount; // Shh
delegateAndReturn();
}
/**
* @notice Approve `spender` to transfer up to `amount` from `src`
* @dev This will overwrite the approval amount for `spender`
* and is subject to issues noted [here](https://eips.ethereum.org/EIPS/eip-20#approve)
* @param spender The address of the account which may transfer tokens
* @param amount The number of tokens that are approved (-1 means infinite)
* @return Whether or not the approval succeeded
*/
function approve(address spender, uint256 amount) external returns (bool) {
spender; amount; // Shh
delegateAndReturn();
}
/**
* @notice Get the current allowance from `owner` for `spender`
* @param owner The address of the account which owns the tokens to be spent
* @param spender The address of the account which may transfer tokens
* @return The number of tokens allowed to be spent (-1 means infinite)
*/
function allowance(address owner, address spender) external view returns (uint) {
owner; spender; // Shh
delegateToViewAndReturn();
}
/**
* @notice Get the token balance of the `owner`
* @param owner The address of the account to query
* @return The number of tokens owned by `owner`
*/
function balanceOf(address owner) external view returns (uint) {
owner; // Shh
delegateToViewAndReturn();
}
/**
* @notice Get the underlying balance of the `owner`
* @dev This also accrues interest in a transaction
* @param owner The address of the account to query
* @return The amount of underlying owned by `owner`
*/
function balanceOfUnderlying(address owner) external returns (uint) {
owner; // Shh
delegateAndReturn();
}
/**
* @notice Get a snapshot of the account's balances, and the cached exchange rate
* @dev This is used by comptroller to more efficiently perform liquidity checks.
* @param account Address of the account to snapshot
* @return (possible error, token balance, borrow balance, exchange rate mantissa)
*/
function getAccountSnapshot(address account) external view returns (uint, uint, uint, uint) {
account; // Shh
delegateToViewAndReturn();
}
/**
* @notice Returns the current per-block borrow interest rate for this cToken
* @return The borrow interest rate per block, scaled by 1e18
*/
function borrowRatePerBlock() external view returns (uint) {
delegateToViewAndReturn();
}
/**
* @notice Returns the current per-block supply interest rate for this cToken
* @return The supply interest rate per block, scaled by 1e18
*/
function supplyRatePerBlock() external view returns (uint) {
delegateToViewAndReturn();
}
/**
* @notice Returns the current total borrows plus accrued interest
* @return The total borrows with interest
*/
function totalBorrowsCurrent() external returns (uint) {
delegateAndReturn();
}
/**
* @notice Accrue interest to updated borrowIndex and then calculate account's borrow balance using the updated borrowIndex
* @param account The address whose balance should be calculated after updating borrowIndex
* @return The calculated balance
*/
function borrowBalanceCurrent(address account) external returns (uint) {
account; // Shh
delegateAndReturn();
}
/**
* @notice Return the borrow balance of account based on stored data
* @param account The address whose balance should be calculated
* @return The calculated balance
*/
function borrowBalanceStored(address account) public view returns (uint) {
account; // Shh
delegateToViewAndReturn();
}
/**
* @notice Accrue interest then return the up-to-date exchange rate
* @return Calculated exchange rate scaled by 1e18
*/
function exchangeRateCurrent() public returns (uint) {
delegateAndReturn();
}
/**
* @notice Calculates the exchange rate from the underlying to the CToken
* @dev This function does not accrue interest before calculating the exchange rate
* @return Calculated exchange rate scaled by 1e18
*/
function exchangeRateStored() public view returns (uint) {
delegateToViewAndReturn();
}
/**
* @notice Get cash balance of this cToken in the underlying asset
* @return The quantity of underlying asset owned by this contract
*/
function getCash() external view returns (uint) {
delegateToViewAndReturn();
}
/**
* @notice Applies accrued interest to total borrows and reserves.
* @dev This calculates interest accrued from the last checkpointed block
* up to the current block and writes new checkpoint to storage.
*/
function accrueInterest() public returns (uint) {
delegateAndReturn();
}
/**
* @notice Transfers collateral tokens (this market) to the liquidator.
* @dev Will fail unless called by another cToken during the process of liquidation.
* Its absolutely critical to use msg.sender as the borrowed cToken and not a parameter.
* @param liquidator The account receiving seized collateral
* @param borrower The account having collateral seized
* @param seizeTokens The number of cTokens to seize
* @return uint 0=success, otherwise a failure (see ErrorReporter.sol for details)
*/
function seize(address liquidator, address borrower, uint seizeTokens) external returns (uint) {
liquidator; borrower; seizeTokens; // Shh
delegateAndReturn();
}
/*** Admin Functions ***/
/**
* @notice Begins transfer of admin rights. The newPendingAdmin must call `_acceptAdmin` to finalize the transfer.
* @dev Admin function to begin change of admin. The newPendingAdmin must call `_acceptAdmin` to finalize the transfer.
* @param newPendingAdmin New pending admin.
* @return uint 0=success, otherwise a failure (see ErrorReporter.sol for details)
*/
function _setPendingAdmin(address payable newPendingAdmin) external returns (uint) {
newPendingAdmin; // Shh
delegateAndReturn();
}
/**
* @notice Sets a new comptroller for the market
* @dev Admin function to set a new comptroller
* @return uint 0=success, otherwise a failure (see ErrorReporter.sol for details)
*/
function _setComptroller(ComptrollerInterface newComptroller) public returns (uint) {
newComptroller; // Shh
delegateAndReturn();
}
/**
* @notice accrues interest and sets a new reserve factor for the protocol using _setReserveFactorFresh
* @dev Admin function to accrue interest and set a new reserve factor
* @return uint 0=success, otherwise a failure (see ErrorReporter.sol for details)
*/
function _setReserveFactor(uint newReserveFactorMantissa) external returns (uint) {
newReserveFactorMantissa; // Shh
delegateAndReturn();
}
/**
* @notice Accepts transfer of admin rights. msg.sender must be pendingAdmin
* @dev Admin function for pending admin to accept role and update admin
* @return uint 0=success, otherwise a failure (see ErrorReporter.sol for details)
*/
function _acceptAdmin() external returns (uint) {
delegateAndReturn();
}
/**
* @notice Accrues interest and adds reserves by transferring from admin
* @param addAmount Amount of reserves to add
* @return uint 0=success, otherwise a failure (see ErrorReporter.sol for details)
*/
function _addReserves(uint addAmount) external returns (uint) {
addAmount; // Shh
delegateAndReturn();
}
/**
* @notice Accrues interest and reduces reserves by transferring to admin
* @param reduceAmount Amount of reduction to reserves
* @return uint 0=success, otherwise a failure (see ErrorReporter.sol for details)
*/
function _reduceReserves(uint reduceAmount) external returns (uint) {
reduceAmount; // Shh
delegateAndReturn();
}
/**
* @notice Accrues interest and updates the interest rate model using _setInterestRateModelFresh
* @dev Admin function to accrue interest and update the interest rate model
* @param newInterestRateModel the new interest rate model to use
* @return uint 0=success, otherwise a failure (see ErrorReporter.sol for details)
*/
function _setInterestRateModel(InterestRateModel newInterestRateModel) public returns (uint) {
newInterestRateModel; // Shh
delegateAndReturn();
}
/**
* @notice Internal method to delegate execution to another contract
* @dev It returns to the external caller whatever the implementation returns or forwards reverts
* @param callee The contract to delegatecall
* @param data The raw data to delegatecall
* @return The returned bytes from the delegatecall
*/
function delegateTo(address callee, bytes memory data) internal returns (bytes memory) {
(bool success, bytes memory returnData) = callee.delegatecall(data);
assembly {
if eq(success, 0) {
revert(add(returnData, 0x20), returndatasize)
}
}
return returnData;
}
/**
* @notice Delegates execution to the implementation contract
* @dev It returns to the external caller whatever the implementation returns or forwards reverts
* @param data The raw data to delegatecall
* @return The returned bytes from the delegatecall
*/
function delegateToImplementation(bytes memory data) public returns (bytes memory) {
return delegateTo(implementation, data);
}
/**
* @notice Delegates execution to an implementation contract
* @dev It returns to the external caller whatever the implementation returns or forwards reverts
* There are an additional 2 prefix uints from the wrapper returndata, which we ignore since we make an extra hop.
* @param data The raw data to delegatecall
* @return The returned bytes from the delegatecall
*/
function delegateToViewImplementation(bytes memory data) public view returns (bytes memory) {
(bool success, bytes memory returnData) = address(this).staticcall(abi.encodeWithSignature("delegateToImplementation(bytes)", data));
assembly {
if eq(success, 0) {
revert(add(returnData, 0x20), returndatasize)
}
}
return abi.decode(returnData, (bytes));
}
function delegateToViewAndReturn() private view returns (bytes memory) {
(bool success, ) = address(this).staticcall(abi.encodeWithSignature("delegateToImplementation(bytes)", msg.data));
assembly {
let free_mem_ptr := mload(0x40)
returndatacopy(free_mem_ptr, 0, returndatasize)
switch success
case 0 { revert(free_mem_ptr, returndatasize) }
default { return(add(free_mem_ptr, 0x40), returndatasize) }
}
}
function delegateAndReturn() private returns (bytes memory) {
(bool success, ) = implementation.delegatecall(msg.data);
assembly {
let free_mem_ptr := mload(0x40)
returndatacopy(free_mem_ptr, 0, returndatasize)
switch success
case 0 { revert(free_mem_ptr, returndatasize) }
default { return(free_mem_ptr, returndatasize) }
}
}
/**
* @notice Delegates execution to an implementation contract
* @dev It returns to the external caller whatever the implementation returns or forwards reverts
*/
function () external payable {
require(msg.value == 0,"CErc20Delegator:fallback: cannot send value to fallback");
// delegate all other functions to current implementation
delegateAndReturn();
}
}
Contract ABI
[{"type":"constructor","stateMutability":"nonpayable","payable":false,"inputs":[{"type":"address","name":"underlying_","internalType":"address"},{"type":"address","name":"comptroller_","internalType":"contract ComptrollerInterface"},{"type":"address","name":"interestRateModel_","internalType":"contract InterestRateModel"},{"type":"uint256","name":"initialExchangeRateMantissa_","internalType":"uint256"},{"type":"string","name":"name_","internalType":"string"},{"type":"string","name":"symbol_","internalType":"string"},{"type":"uint8","name":"decimals_","internalType":"uint8"},{"type":"address","name":"admin_","internalType":"address payable"},{"type":"address","name":"implementation_","internalType":"address"},{"type":"bytes","name":"becomeImplementationData","internalType":"bytes"}]},{"type":"event","name":"AccrueInterest","inputs":[{"type":"uint256","name":"cashPrior","internalType":"uint256","indexed":false},{"type":"uint256","name":"interestAccumulated","internalType":"uint256","indexed":false},{"type":"uint256","name":"borrowIndex","internalType":"uint256","indexed":false},{"type":"uint256","name":"totalBorrows","internalType":"uint256","indexed":false}],"anonymous":false},{"type":"event","name":"Approval","inputs":[{"type":"address","name":"owner","internalType":"address","indexed":true},{"type":"address","name":"spender","internalType":"address","indexed":true},{"type":"uint256","name":"amount","internalType":"uint256","indexed":false}],"anonymous":false},{"type":"event","name":"Borrow","inputs":[{"type":"address","name":"borrower","internalType":"address","indexed":false},{"type":"uint256","name":"borrowAmount","internalType":"uint256","indexed":false},{"type":"uint256","name":"accountBorrows","internalType":"uint256","indexed":false},{"type":"uint256","name":"totalBorrows","internalType":"uint256","indexed":false}],"anonymous":false},{"type":"event","name":"Failure","inputs":[{"type":"uint256","name":"error","internalType":"uint256","indexed":false},{"type":"uint256","name":"info","internalType":"uint256","indexed":false},{"type":"uint256","name":"detail","internalType":"uint256","indexed":false}],"anonymous":false},{"type":"event","name":"LiquidateBorrow","inputs":[{"type":"address","name":"liquidator","internalType":"address","indexed":false},{"type":"address","name":"borrower","internalType":"address","indexed":false},{"type":"uint256","name":"repayAmount","internalType":"uint256","indexed":false},{"type":"address","name":"cTokenCollateral","internalType":"address","indexed":false},{"type":"uint256","name":"seizeTokens","internalType":"uint256","indexed":false}],"anonymous":false},{"type":"event","name":"Mint","inputs":[{"type":"address","name":"minter","internalType":"address","indexed":false},{"type":"uint256","name":"mintAmount","internalType":"uint256","indexed":false},{"type":"uint256","name":"mintTokens","internalType":"uint256","indexed":false}],"anonymous":false},{"type":"event","name":"NewAdmin","inputs":[{"type":"address","name":"oldAdmin","internalType":"address","indexed":false},{"type":"address","name":"newAdmin","internalType":"address","indexed":false}],"anonymous":false},{"type":"event","name":"NewComptroller","inputs":[{"type":"address","name":"oldComptroller","internalType":"contract ComptrollerInterface","indexed":false},{"type":"address","name":"newComptroller","internalType":"contract ComptrollerInterface","indexed":false}],"anonymous":false},{"type":"event","name":"NewImplementation","inputs":[{"type":"address","name":"oldImplementation","internalType":"address","indexed":false},{"type":"address","name":"newImplementation","internalType":"address","indexed":false}],"anonymous":false},{"type":"event","name":"NewMarketInterestRateModel","inputs":[{"type":"address","name":"oldInterestRateModel","internalType":"contract InterestRateModel","indexed":false},{"type":"address","name":"newInterestRateModel","internalType":"contract InterestRateModel","indexed":false}],"anonymous":false},{"type":"event","name":"NewPendingAdmin","inputs":[{"type":"address","name":"oldPendingAdmin","internalType":"address","indexed":false},{"type":"address","name":"newPendingAdmin","internalType":"address","indexed":false}],"anonymous":false},{"type":"event","name":"NewReserveFactor","inputs":[{"type":"uint256","name":"oldReserveFactorMantissa","internalType":"uint256","indexed":false},{"type":"uint256","name":"newReserveFactorMantissa","internalType":"uint256","indexed":false}],"anonymous":false},{"type":"event","name":"Redeem","inputs":[{"type":"address","name":"redeemer","internalType":"address","indexed":false},{"type":"uint256","name":"redeemAmount","internalType":"uint256","indexed":false},{"type":"uint256","name":"redeemTokens","internalType":"uint256","indexed":false}],"anonymous":false},{"type":"event","name":"RepayBorrow","inputs":[{"type":"address","name":"payer","internalType":"address","indexed":false},{"type":"address","name":"borrower","internalType":"address","indexed":false},{"type":"uint256","name":"repayAmount","internalType":"uint256","indexed":false},{"type":"uint256","name":"accountBorrows","internalType":"uint256","indexed":false},{"type":"uint256","name":"totalBorrows","internalType":"uint256","indexed":false}],"anonymous":false},{"type":"event","name":"ReservesAdded","inputs":[{"type":"address","name":"benefactor","internalType":"address","indexed":false},{"type":"uint256","name":"addAmount","internalType":"uint256","indexed":false},{"type":"uint256","name":"newTotalReserves","internalType":"uint256","indexed":false}],"anonymous":false},{"type":"event","name":"ReservesReduced","inputs":[{"type":"address","name":"admin","internalType":"address","indexed":false},{"type":"uint256","name":"reduceAmount","internalType":"uint256","indexed":false},{"type":"uint256","name":"newTotalReserves","internalType":"uint256","indexed":false}],"anonymous":false},{"type":"event","name":"Transfer","inputs":[{"type":"address","name":"from","internalType":"address","indexed":true},{"type":"address","name":"to","internalType":"address","indexed":true},{"type":"uint256","name":"amount","internalType":"uint256","indexed":false}],"anonymous":false},{"type":"fallback","stateMutability":"payable","payable":true},{"type":"function","stateMutability":"nonpayable","payable":false,"outputs":[{"type":"uint256","name":"","internalType":"uint256"}],"name":"_acceptAdmin","inputs":[],"constant":false},{"type":"function","stateMutability":"nonpayable","payable":false,"outputs":[{"type":"uint256","name":"","internalType":"uint256"}],"name":"_addReserves","inputs":[{"type":"uint256","name":"addAmount","internalType":"uint256"}],"constant":false},{"type":"function","stateMutability":"nonpayable","payable":false,"outputs":[{"type":"uint256","name":"","internalType":"uint256"}],"name":"_reduceReserves","inputs":[{"type":"uint256","name":"reduceAmount","internalType":"uint256"}],"constant":false},{"type":"function","stateMutability":"nonpayable","payable":false,"outputs":[{"type":"uint256","name":"","internalType":"uint256"}],"name":"_setComptroller","inputs":[{"type":"address","name":"newComptroller","internalType":"contract ComptrollerInterface"}],"constant":false},{"type":"function","stateMutability":"nonpayable","payable":false,"outputs":[],"name":"_setImplementation","inputs":[{"type":"address","name":"implementation_","internalType":"address"},{"type":"bool","name":"allowResign","internalType":"bool"},{"type":"bytes","name":"becomeImplementationData","internalType":"bytes"}],"constant":false},{"type":"function","stateMutability":"nonpayable","payable":false,"outputs":[{"type":"uint256","name":"","internalType":"uint256"}],"name":"_setInterestRateModel","inputs":[{"type":"address","name":"newInterestRateModel","internalType":"contract InterestRateModel"}],"constant":false},{"type":"function","stateMutability":"nonpayable","payable":false,"outputs":[{"type":"uint256","name":"","internalType":"uint256"}],"name":"_setPendingAdmin","inputs":[{"type":"address","name":"newPendingAdmin","internalType":"address payable"}],"constant":false},{"type":"function","stateMutability":"nonpayable","payable":false,"outputs":[{"type":"uint256","name":"","internalType":"uint256"}],"name":"_setReserveFactor","inputs":[{"type":"uint256","name":"newReserveFactorMantissa","internalType":"uint256"}],"constant":false},{"type":"function","stateMutability":"view","payable":false,"outputs":[{"type":"uint256","name":"","internalType":"uint256"}],"name":"accrualBlockNumber","inputs":[],"constant":true},{"type":"function","stateMutability":"nonpayable","payable":false,"outputs":[{"type":"uint256","name":"","internalType":"uint256"}],"name":"accrueInterest","inputs":[],"constant":false},{"type":"function","stateMutability":"view","payable":false,"outputs":[{"type":"address","name":"","internalType":"address payable"}],"name":"admin","inputs":[],"constant":true},{"type":"function","stateMutability":"view","payable":false,"outputs":[{"type":"uint256","name":"","internalType":"uint256"}],"name":"allowance","inputs":[{"type":"address","name":"owner","internalType":"address"},{"type":"address","name":"spender","internalType":"address"}],"constant":true},{"type":"function","stateMutability":"nonpayable","payable":false,"outputs":[{"type":"bool","name":"","internalType":"bool"}],"name":"approve","inputs":[{"type":"address","name":"spender","internalType":"address"},{"type":"uint256","name":"amount","internalType":"uint256"}],"constant":false},{"type":"function","stateMutability":"view","payable":false,"outputs":[{"type":"uint256","name":"","internalType":"uint256"}],"name":"balanceOf","inputs":[{"type":"address","name":"owner","internalType":"address"}],"constant":true},{"type":"function","stateMutability":"nonpayable","payable":false,"outputs":[{"type":"uint256","name":"","internalType":"uint256"}],"name":"balanceOfUnderlying","inputs":[{"type":"address","name":"owner","internalType":"address"}],"constant":false},{"type":"function","stateMutability":"nonpayable","payable":false,"outputs":[{"type":"uint256","name":"","internalType":"uint256"}],"name":"borrow","inputs":[{"type":"uint256","name":"borrowAmount","internalType":"uint256"}],"constant":false},{"type":"function","stateMutability":"nonpayable","payable":false,"outputs":[{"type":"uint256","name":"","internalType":"uint256"}],"name":"borrowBalanceCurrent","inputs":[{"type":"address","name":"account","internalType":"address"}],"constant":false},{"type":"function","stateMutability":"view","payable":false,"outputs":[{"type":"uint256","name":"","internalType":"uint256"}],"name":"borrowBalanceStored","inputs":[{"type":"address","name":"account","internalType":"address"}],"constant":true},{"type":"function","stateMutability":"view","payable":false,"outputs":[{"type":"uint256","name":"","internalType":"uint256"}],"name":"borrowIndex","inputs":[],"constant":true},{"type":"function","stateMutability":"view","payable":false,"outputs":[{"type":"uint256","name":"","internalType":"uint256"}],"name":"borrowRatePerBlock","inputs":[],"constant":true},{"type":"function","stateMutability":"view","payable":false,"outputs":[{"type":"address","name":"","internalType":"contract ComptrollerInterface"}],"name":"comptroller","inputs":[],"constant":true},{"type":"function","stateMutability":"view","payable":false,"outputs":[{"type":"uint8","name":"","internalType":"uint8"}],"name":"decimals","inputs":[],"constant":true},{"type":"function","stateMutability":"nonpayable","payable":false,"outputs":[{"type":"bytes","name":"","internalType":"bytes"}],"name":"delegateToImplementation","inputs":[{"type":"bytes","name":"data","internalType":"bytes"}],"constant":false},{"type":"function","stateMutability":"view","payable":false,"outputs":[{"type":"bytes","name":"","internalType":"bytes"}],"name":"delegateToViewImplementation","inputs":[{"type":"bytes","name":"data","internalType":"bytes"}],"constant":true},{"type":"function","stateMutability":"nonpayable","payable":false,"outputs":[{"type":"uint256","name":"","internalType":"uint256"}],"name":"exchangeRateCurrent","inputs":[],"constant":false},{"type":"function","stateMutability":"view","payable":false,"outputs":[{"type":"uint256","name":"","internalType":"uint256"}],"name":"exchangeRateStored","inputs":[],"constant":true},{"type":"function","stateMutability":"view","payable":false,"outputs":[{"type":"uint256","name":"","internalType":"uint256"},{"type":"uint256","name":"","internalType":"uint256"},{"type":"uint256","name":"","internalType":"uint256"},{"type":"uint256","name":"","internalType":"uint256"}],"name":"getAccountSnapshot","inputs":[{"type":"address","name":"account","internalType":"address"}],"constant":true},{"type":"function","stateMutability":"view","payable":false,"outputs":[{"type":"uint256","name":"","internalType":"uint256"}],"name":"getCash","inputs":[],"constant":true},{"type":"function","stateMutability":"view","payable":false,"outputs":[{"type":"address","name":"","internalType":"address"}],"name":"implementation","inputs":[],"constant":true},{"type":"function","stateMutability":"view","payable":false,"outputs":[{"type":"address","name":"","internalType":"contract InterestRateModel"}],"name":"interestRateModel","inputs":[],"constant":true},{"type":"function","stateMutability":"view","payable":false,"outputs":[{"type":"bool","name":"","internalType":"bool"}],"name":"isCToken","inputs":[],"constant":true},{"type":"function","stateMutability":"nonpayable","payable":false,"outputs":[{"type":"uint256","name":"","internalType":"uint256"}],"name":"liquidateBorrow","inputs":[{"type":"address","name":"borrower","internalType":"address"},{"type":"uint256","name":"repayAmount","internalType":"uint256"},{"type":"address","name":"cTokenCollateral","internalType":"contract CTokenInterface"}],"constant":false},{"type":"function","stateMutability":"nonpayable","payable":false,"outputs":[{"type":"uint256","name":"","internalType":"uint256"}],"name":"mint","inputs":[{"type":"uint256","name":"mintAmount","internalType":"uint256"}],"constant":false},{"type":"function","stateMutability":"view","payable":false,"outputs":[{"type":"string","name":"","internalType":"string"}],"name":"name","inputs":[],"constant":true},{"type":"function","stateMutability":"view","payable":false,"outputs":[{"type":"address","name":"","internalType":"address payable"}],"name":"pendingAdmin","inputs":[],"constant":true},{"type":"function","stateMutability":"nonpayable","payable":false,"outputs":[{"type":"uint256","name":"","internalType":"uint256"}],"name":"redeem","inputs":[{"type":"uint256","name":"redeemTokens","internalType":"uint256"}],"constant":false},{"type":"function","stateMutability":"nonpayable","payable":false,"outputs":[{"type":"uint256","name":"","internalType":"uint256"}],"name":"redeemUnderlying","inputs":[{"type":"uint256","name":"redeemAmount","internalType":"uint256"}],"constant":false},{"type":"function","stateMutability":"nonpayable","payable":false,"outputs":[{"type":"uint256","name":"","internalType":"uint256"}],"name":"repayBorrow","inputs":[{"type":"uint256","name":"repayAmount","internalType":"uint256"}],"constant":false},{"type":"function","stateMutability":"nonpayable","payable":false,"outputs":[{"type":"uint256","name":"","internalType":"uint256"}],"name":"repayBorrowBehalf","inputs":[{"type":"address","name":"borrower","internalType":"address"},{"type":"uint256","name":"repayAmount","internalType":"uint256"}],"constant":false},{"type":"function","stateMutability":"view","payable":false,"outputs":[{"type":"uint256","name":"","internalType":"uint256"}],"name":"reserveFactorMantissa","inputs":[],"constant":true},{"type":"function","stateMutability":"nonpayable","payable":false,"outputs":[{"type":"uint256","name":"","internalType":"uint256"}],"name":"seize","inputs":[{"type":"address","name":"liquidator","internalType":"address"},{"type":"address","name":"borrower","internalType":"address"},{"type":"uint256","name":"seizeTokens","internalType":"uint256"}],"constant":false},{"type":"function","stateMutability":"view","payable":false,"outputs":[{"type":"uint256","name":"","internalType":"uint256"}],"name":"supplyRatePerBlock","inputs":[],"constant":true},{"type":"function","stateMutability":"view","payable":false,"outputs":[{"type":"string","name":"","internalType":"string"}],"name":"symbol","inputs":[],"constant":true},{"type":"function","stateMutability":"view","payable":false,"outputs":[{"type":"uint256","name":"","internalType":"uint256"}],"name":"totalBorrows","inputs":[],"constant":true},{"type":"function","stateMutability":"nonpayable","payable":false,"outputs":[{"type":"uint256","name":"","internalType":"uint256"}],"name":"totalBorrowsCurrent","inputs":[],"constant":false},{"type":"function","stateMutability":"view","payable":false,"outputs":[{"type":"uint256","name":"","internalType":"uint256"}],"name":"totalReserves","inputs":[],"constant":true},{"type":"function","stateMutability":"view","payable":false,"outputs":[{"type":"uint256","name":"","internalType":"uint256"}],"name":"totalSupply","inputs":[],"constant":true},{"type":"function","stateMutability":"nonpayable","payable":false,"outputs":[{"type":"bool","name":"","internalType":"bool"}],"name":"transfer","inputs":[{"type":"address","name":"dst","internalType":"address"},{"type":"uint256","name":"amount","internalType":"uint256"}],"constant":false},{"type":"function","stateMutability":"nonpayable","payable":false,"outputs":[{"type":"bool","name":"","internalType":"bool"}],"name":"transferFrom","inputs":[{"type":"address","name":"src","internalType":"address"},{"type":"address","name":"dst","internalType":"address"},{"type":"uint256","name":"amount","internalType":"uint256"}],"constant":false},{"type":"function","stateMutability":"view","payable":false,"outputs":[{"type":"address","name":"","internalType":"address"}],"name":"underlying","inputs":[],"constant":true}]
Contract Creation Code
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