Warning! Contract bytecode has been changed and doesn't match the verified one. Therefore, interaction with this smart contract may be risky.
This contract has been verified via Sourcify.
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- Contract name:
- CompoundLikeWrapper
- Optimization enabled
- true
- Compiler version
- v0.8.14+commit.80d49f37
- Optimization runs
- 1000000
- EVM Version
- london
- Verified at
- 2023-09-05T20:19:57.950262Z
Constructor Arguments
0000000000000000000000006de54724e128274520606f038591a00c5e94a1f60000000000000000000000004e8fe8fd314cfc09bdb0942c5adcc37431abdcd0
Arg [0] (address) : 0x6de54724e128274520606f038591a00c5e94a1f6
Arg [1] (address) : 0x4e8fe8fd314cfc09bdb0942c5adcc37431abdcd0
contracts/wrappers/CompoundLikeWrapper.sol
// SPDX-License-Identifier: MIT
pragma solidity 0.8.14;
pragma abicoder v1;
import "../interfaces/IComptroller.sol";
import "../interfaces/IWrapper.sol";
contract CompoundLikeWrapper is IWrapper {
IComptroller private immutable _comptroller;
IERC20 private constant _BASE = IERC20(0x0000000000000000000000000000000000000000);
IERC20 private immutable _cBase;
mapping(IERC20 => IERC20) public cTokenToToken;
mapping(IERC20 => IERC20) public tokenTocToken;
constructor(IComptroller comptroller, IERC20 cBase) {
_comptroller = comptroller;
_cBase = cBase;
}
function addMarkets(ICToken[] memory markets) external {
unchecked {
for (uint256 i = 0; i < markets.length; i++) {
(bool isListed, , ) = _comptroller.markets(markets[i]);
require(isListed, "Market is not listed");
IERC20 underlying = markets[i].underlying();
cTokenToToken[markets[i]] = underlying;
tokenTocToken[underlying] = markets[i];
}
}
}
function removeMarkets(ICToken[] memory markets) external {
unchecked {
for (uint256 i = 0; i < markets.length; i++) {
(bool isListed, , ) = _comptroller.markets(markets[i]);
require(!isListed, "Market is listed");
IERC20 underlying = markets[i].underlying();
delete cTokenToToken[markets[i]];
delete tokenTocToken[underlying];
}
}
}
function wrap(IERC20 token) external view override returns (IERC20 wrappedToken, uint256 rate) {
if (token == _BASE) {
return (_cBase, 1e36 / ICToken(address(_cBase)).exchangeRateStored());
} else if (token == _cBase) {
return (_BASE, ICToken(address(_cBase)).exchangeRateStored());
}
IERC20 underlying = cTokenToToken[token];
IERC20 cToken = tokenTocToken[token];
if (underlying != IERC20(address(0))) {
return (underlying, ICToken(address(token)).exchangeRateStored());
} else if (cToken != IERC20(address(0))) {
return (cToken, 1e36 / ICToken(address(cToken)).exchangeRateStored());
} else {
revert("Unsupported token");
}
}
}
/contracts/interfaces/IWrapper.sol
// SPDX-License-Identifier: MIT
pragma solidity 0.8.14;
pragma abicoder v1;
import "@openzeppelin/contracts/token/ERC20/IERC20.sol";
interface IWrapper {
function wrap(IERC20 token) external view returns (IERC20 wrappedToken, uint256 rate);
}
/contracts/interfaces/IComptroller.sol
// SPDX-License-Identifier: MIT
pragma solidity 0.8.14;
pragma abicoder v1;
import "./ICToken.sol";
interface IComptroller {
function getAllMarkets() external view returns (ICToken[] memory);
function markets(ICToken market) external view returns (bool isListed, uint256 collateralFactorMantissa, bool isComped);
}
/contracts/interfaces/ICToken.sol
// SPDX-License-Identifier: MIT
pragma solidity 0.8.14;
pragma abicoder v1;
import "@openzeppelin/contracts/token/ERC20/IERC20.sol";
interface ICToken is IERC20 {
function underlying() external view returns (IERC20 token);
function exchangeRateStored() external view returns (uint256 exchangeRate);
}
/_openzeppelin/contracts/token/ERC20/IERC20.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.6.0) (token/ERC20/IERC20.sol)
pragma solidity ^0.8.0;
/**
* @dev Interface of the ERC20 standard as defined in the EIP.
*/
interface IERC20 {
/**
* @dev Emitted when `value` tokens are moved from one account (`from`) to
* another (`to`).
*
* Note that `value` may be zero.
*/
event Transfer(address indexed from, address indexed to, uint256 value);
/**
* @dev Emitted when the allowance of a `spender` for an `owner` is set by
* a call to {approve}. `value` is the new allowance.
*/
event Approval(address indexed owner, address indexed spender, uint256 value);
/**
* @dev Returns the amount of tokens in existence.
*/
function totalSupply() external view returns (uint256);
/**
* @dev Returns the amount of tokens owned by `account`.
*/
function balanceOf(address account) external view returns (uint256);
/**
* @dev Moves `amount` tokens from the caller's account to `to`.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transfer(address to, uint256 amount) external returns (bool);
/**
* @dev Returns the remaining number of tokens that `spender` will be
* allowed to spend on behalf of `owner` through {transferFrom}. This is
* zero by default.
*
* This value changes when {approve} or {transferFrom} are called.
*/
function allowance(address owner, address spender) external view returns (uint256);
/**
* @dev Sets `amount` as the allowance of `spender` over the caller's tokens.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* IMPORTANT: Beware that changing an allowance with this method brings the risk
* that someone may use both the old and the new allowance by unfortunate
* transaction ordering. One possible solution to mitigate this race
* condition is to first reduce the spender's allowance to 0 and set the
* desired value afterwards:
* https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
*
* Emits an {Approval} event.
*/
function approve(address spender, uint256 amount) external returns (bool);
/**
* @dev Moves `amount` tokens from `from` to `to` using the
* allowance mechanism. `amount` is then deducted from the caller's
* allowance.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transferFrom(
address from,
address to,
uint256 amount
) external returns (bool);
}
Compiler Settings
{"remappings":[],"optimizer":{"runs":1000000,"enabled":true},"metadata":{"useLiteralContent":true,"bytecodeHash":"ipfs"},"libraries":{},"evmVersion":"london","compilationTarget":{"contracts/wrappers/CompoundLikeWrapper.sol":"CompoundLikeWrapper"}}
Contract ABI
[{"type":"constructor","stateMutability":"nonpayable","inputs":[{"type":"address","name":"comptroller","internalType":"contract IComptroller"},{"type":"address","name":"cBase","internalType":"contract IERC20"}]},{"type":"function","stateMutability":"nonpayable","outputs":[],"name":"addMarkets","inputs":[{"type":"address[]","name":"markets","internalType":"contract ICToken[]"}]},{"type":"function","stateMutability":"view","outputs":[{"type":"address","name":"","internalType":"contract IERC20"}],"name":"cTokenToToken","inputs":[{"type":"address","name":"","internalType":"contract IERC20"}]},{"type":"function","stateMutability":"nonpayable","outputs":[],"name":"removeMarkets","inputs":[{"type":"address[]","name":"markets","internalType":"contract ICToken[]"}]},{"type":"function","stateMutability":"view","outputs":[{"type":"address","name":"","internalType":"contract IERC20"}],"name":"tokenTocToken","inputs":[{"type":"address","name":"","internalType":"contract IERC20"}]},{"type":"function","stateMutability":"view","outputs":[{"type":"address","name":"wrappedToken","internalType":"contract IERC20"},{"type":"uint256","name":"rate","internalType":"uint256"}],"name":"wrap","inputs":[{"type":"address","name":"token","internalType":"contract IERC20"}]}]
Contract Creation Code
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ByteCode
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