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Contract Name:
StakeDAOLevSwapper2Pool
Compiler Version
v0.8.17+commit.8df45f5f
Optimization Enabled:
Yes with 1000000 runs
Other Settings:
default evmVersion
Contract Source Code (Solidity Standard Json-Input format)
// SPDX-License-Identifier: GPL-3.0
pragma solidity ^0.8.17;
import "../CurveLevSwapper2Pool.sol";
/// @title StakeDAOLevSwapper2Pool
/// @author Angle Labs, Inc.
/// @notice Implements CurveLevSwapper2Pool with a StakeDAO staker
contract StakeDAOLevSwapper2Pool is CurveLevSwapper2Pool {
constructor(
ICoreBorrow _core,
IUniswapV3Router _uniV3Router,
address _oneInch,
IAngleRouterSidechain _angleRouter
) CurveLevSwapper2Pool(_core, _uniV3Router, _oneInch, _angleRouter) {}
/// @inheritdoc BaseLevSwapper
function angleStaker() public pure override returns (IBorrowStaker) {
return IBorrowStaker(0xc8711B1206cD3e89799Ec32973f583e696Cb553C);
}
}// SPDX-License-Identifier: GPL-3.0
pragma solidity ^0.8.7;
import "@openzeppelin/contracts/token/ERC20/IERC20.sol";
interface IBorrowStakerCheckpoint {
function checkpointFromVaultManager(
address from,
uint256 amount,
bool add
) external;
}
interface IBorrowStaker is IBorrowStakerCheckpoint, IERC20 {
function asset() external returns (IERC20 stakingToken);
function deposit(uint256 amount, address to) external;
function withdraw(
uint256 amount,
address from,
address to
) external;
//solhint-disable-next-line
function claim_rewards(address user) external returns (uint256[] memory);
}// SPDX-License-Identifier: GPL-3.0
pragma solidity ^0.8.17;
import "./IMetaPoolBase.sol";
uint256 constant N_COINS = 2;
//solhint-disable
interface IMetaPool2 is IMetaPoolBase {
function coins() external view returns (uint256[N_COINS] memory);
// for basis pool
function balances(uint256) external view returns (uint256);
function get_balances() external view returns (uint256[N_COINS] memory);
function get_previous_balances() external view returns (uint256[N_COINS] memory);
function get_price_cumulative_last() external view returns (uint256[N_COINS] memory);
function get_twap_balances(
uint256[N_COINS] memory _first_balances,
uint256[N_COINS] memory _last_balances,
uint256 _time_elapsed
) external view returns (uint256[N_COINS] memory);
function calc_token_amount(uint256[N_COINS] memory _amounts, bool _is_deposit) external view returns (uint256);
function calc_token_amount(
uint256[N_COINS] memory _amounts,
bool _is_deposit,
bool _previous
) external view returns (uint256);
function add_liquidity(uint256[N_COINS] memory _amounts, uint256 _min_mint_amount) external;
function add_liquidity(
uint256[N_COINS] memory _amounts,
uint256 _min_mint_amount,
address _receiver
) external;
function get_dy(
int128 i,
int128 j,
uint256 dx,
uint256[N_COINS] memory _balances
) external view returns (uint256);
function get_dy_underlying(
int128 i,
int128 j,
uint256 dx,
uint256[N_COINS] memory _balances
) external view returns (uint256);
function remove_liquidity_one_coin(
uint256 _burn_amount,
int128 i,
uint256 _min_received
) external;
function remove_liquidity(uint256 _burn_amount, uint256[N_COINS] memory _min_amounts) external;
function remove_liquidity(
uint256 _burn_amount,
uint256[N_COINS] memory _min_amounts,
address _receiver
) external;
function remove_liquidity_imbalance(uint256[N_COINS] memory _amounts, uint256 _max_burn_amount) external;
function remove_liquidity_imbalance(
uint256[N_COINS] memory _amounts,
uint256 _max_burn_amount,
address _receiver
) external;
}// SPDX-License-Identifier: GPL-3.0
pragma solidity ^0.8.17;
import "@openzeppelin/contracts/token/ERC20/IERC20.sol";
//solhint-disable
interface IMetaPoolBase is IERC20 {
function admin_fee() external view returns (uint256);
function A() external view returns (uint256);
function A_precise() external view returns (uint256);
function get_virtual_price() external view returns (uint256);
function get_dy(
int128 i,
int128 j,
uint256 dx
) external view returns (uint256);
function get_dy_underlying(
int128 i,
int128 j,
uint256 dx
) external view returns (uint256);
function exchange(
int128 i,
int128 j,
uint256 dx,
uint256 min_dy
) external;
function exchange(
int128 i,
int128 j,
uint256 dx,
uint256 min_dy,
address _receiver
) external;
function exchange_underlying(
int128 i,
int128 j,
uint256 dx,
uint256 min_dy
) external returns (uint256);
function exchange_underlying(
int128 i,
int128 j,
uint256 dx,
uint256 min_dy,
address _receiver
) external returns (uint256);
function calc_withdraw_one_coin(uint256 _burn_amount, int128 i) external view returns (uint256);
function calc_withdraw_one_coin(
uint256 _burn_amount,
int128 i,
bool _previous
) external view returns (uint256);
function remove_liquidity_one_coin(
uint256 _burn_amount,
int128 i,
uint256 _min_received,
address _receiver
) external;
function admin_balances(uint256 i) external view returns (uint256);
function withdraw_admin_fees() external;
}// SPDX-License-Identifier: GPL-3.0
pragma solidity ^0.8.17;
import "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol";
import "@openzeppelin/contracts/token/ERC20/IERC20.sol";
import "borrow/interfaces/IAngleRouterSidechain.sol";
import "borrow/interfaces/ICoreBorrow.sol";
import "borrow/interfaces/external/uniswap/IUniswapRouter.sol";
import "../../interfaces/IBorrowStaker.sol";
import "borrow/swapper/Swapper.sol";
/// @title BaseLevSwapper
/// @author Angle Labs, Inc.
/// @notice Swapper contract facilitating interactions with Angle VaultManager contracts, notably
/// liquidation and leverage transactions
/// @dev This base implementation is for tokens like LP tokens which are not natively supported by 1inch
/// and need some wrapping/unwrapping
abstract contract BaseLevSwapper is Swapper {
using SafeERC20 for IERC20;
constructor(
ICoreBorrow _core,
IUniswapV3Router _uniV3Router,
address _oneInch,
IAngleRouterSidechain _angleRouter
) Swapper(_core, _uniV3Router, _oneInch, _angleRouter) {
if (address(angleStaker()) != address(0))
angleStaker().asset().safeIncreaseAllowance(address(angleStaker()), type(uint256).max);
}
// ============================= INTERNAL FUNCTIONS ============================
/// @inheritdoc Swapper
/// @param data Encoded data giving specific instruction to the bundle tx
/// @dev The amountOut is unused so left as 0 in the case of a deleverage transaction
/// @dev All token transfers must have been done beforehand
/// @dev This function can support multiple swaps to get a desired token
function _swapLeverage(bytes memory data) internal override returns (uint256 amountOut) {
bool leverage;
address to;
bytes[] memory oneInchPayloads;
(leverage, to, data) = abi.decode(data, (bool, address, bytes));
if (leverage) {
(oneInchPayloads, data) = abi.decode(data, (bytes[], bytes));
// After sending all your tokens you have the possibility to swap them through 1inch
// For instance when borrowing on Angle you receive agEUR, but may want to be LP on
// the 3Pool, you can then swap 1/3 of the agEUR to USDC, 1/3 to USDT and 1/3 to DAI
// before providing liquidity
// These swaps are easy to anticipate as you know how many tokens have been sent when querying the 1inch API
_multiSwap1inch(oneInchPayloads);
// Hook to add liquidity to the underlying protocol
amountOut = _add(data);
// Deposit into the AngleStaker
angleStaker().deposit(amountOut, to);
} else {
uint256 toUnstake;
uint256 toRemove;
IERC20[] memory sweepTokens;
(toUnstake, toRemove, sweepTokens, oneInchPayloads, data) = abi.decode(
data,
(uint256, uint256, IERC20[], bytes[], bytes)
);
// Should transfer the token to the contract this will claim the rewards for the current owner of the wrapper
angleStaker().withdraw(toUnstake, address(this), address(this));
_remove(toRemove, data);
// Taking the same example as in the `leverage` side, you can withdraw USDC, DAI and USDT while wanting to
// to repay a debt in agEUR so you need to do a multiswap.
// These swaps are not easy to anticipate the amounts received depend on the deleverage action which can be chaotic
// Very often, it's better to swap a lower bound and then sweep the tokens, even though it's not the most efficient
// thing to do
_multiSwap1inch(oneInchPayloads);
// After the swaps and/or the deleverage we can end up with useless tokens for repaying a debt and therefore let the
// possibility to send it wherever
_sweep(sweepTokens, to);
}
}
/// @notice Allows to do an arbitrary number of swaps using 1inch API
/// @param data Encoded info to execute the swaps from `_swapOn1inch`
function _multiSwap1inch(bytes[] memory data) internal {
uint256 dataLength = data.length;
for (uint256 i; i < dataLength; ++i) {
(address inToken, uint256 minAmount, bytes memory payload) = abi.decode(data[i], (address, uint256, bytes));
uint256 amountOut = _swapOn1inch(IERC20(inToken), payload);
// We check the slippage in this case as `swap()` will only check it for the `outToken`
if (amountOut < minAmount) revert TooSmallAmountOut();
}
}
/// @notice Sweeps tokens from the contract
/// @param tokensOut Token to sweep
/// @param to Address to which tokens should be sent
function _sweep(IERC20[] memory tokensOut, address to) internal {
uint256 tokensOutLength = tokensOut.length;
for (uint256 i; i < tokensOutLength; ++i) {
uint256 balanceToken = tokensOut[i].balanceOf(address(this));
if (balanceToken != 0) {
tokensOut[i].safeTransfer(to, balanceToken);
}
}
}
// ========================= EXTERNAL VIRTUAL FUNCTIONS ========================
/// @notice Token used as collateral on the borrow module, which wraps the `true` collateral
function angleStaker() public view virtual returns (IBorrowStaker);
// ========================= INTERNAL VIRTUAL FUNCTIONS ========================
/// @notice Implements the bundle transaction to increase exposure to a token
/// @param data Encoded data giving specific instruction to the bundle tx
function _add(bytes memory data) internal virtual returns (uint256 amountOut);
/// @notice Implements the bundle transaction to decrease exposure to a token
/// @param toRemove Amount of tokens to remove
/// @param data Encoded data giving specific instruction to the bundle tx
function _remove(uint256 toRemove, bytes memory data) internal virtual;
}// SPDX-License-Identifier: GPL-3.0
pragma solidity ^0.8.17;
import "../BaseLevSwapper.sol";
import "../../../interfaces/external/curve/IMetaPool2.sol";
import "../../../utils/Enums.sol";
/// @title CurveLevSwapper2Tokens
/// @author Angle Labs, Inc.
/// @dev Leverage swapper on Curve LP tokens
/// @dev This implementation is for Curve pools with 2 tokens
abstract contract CurveLevSwapper2Tokens is BaseLevSwapper {
using SafeERC20 for IERC20;
constructor(
ICoreBorrow _core,
IUniswapV3Router _uniV3Router,
address _oneInch,
IAngleRouterSidechain _angleRouter
) BaseLevSwapper(_core, _uniV3Router, _oneInch, _angleRouter) {
if (address(metapool()) != address(0)) {
tokens()[0].safeIncreaseAllowance(address(metapool()), type(uint256).max);
tokens()[1].safeIncreaseAllowance(address(metapool()), type(uint256).max);
}
}
// =============================== MAIN FUNCTIONS ==============================
/// @inheritdoc BaseLevSwapper
function _add(bytes memory) internal override returns (uint256 amountOut) {
// Instead of doing sweeps at the end just use the full balance to add liquidity
uint256 amountToken1 = tokens()[0].balanceOf(address(this));
uint256 amountToken2 = tokens()[1].balanceOf(address(this));
// Slippage is checked at the very end of the `swap` function
if (amountToken1 != 0 || amountToken2 != 0) metapool().add_liquidity([amountToken1, amountToken2], 0);
// Other solution is also to let the user specify how many tokens have been sent + get
// the return value from `add_liquidity`: it's more gas efficient but adds more verbose
amountOut = lpToken().balanceOf(address(this));
}
/// @inheritdoc BaseLevSwapper
function _remove(uint256 burnAmount, bytes memory data) internal override {
CurveRemovalType removalType;
(removalType, data) = abi.decode(data, (CurveRemovalType, bytes));
if (removalType == CurveRemovalType.oneCoin) {
(int128 whichCoin, uint256 minAmountOut) = abi.decode(data, (int128, uint256));
metapool().remove_liquidity_one_coin(burnAmount, whichCoin, minAmountOut);
} else if (removalType == CurveRemovalType.balance) {
uint256[2] memory minAmountOuts = abi.decode(data, (uint256[2]));
metapool().remove_liquidity(burnAmount, minAmountOuts);
} else if (removalType == CurveRemovalType.imbalance) {
(address to, uint256[2] memory amountOuts) = abi.decode(data, (address, uint256[2]));
metapool().remove_liquidity_imbalance(amountOuts, burnAmount);
uint256 keptAmount = lpToken().balanceOf(address(this));
// We may have withdrawn more than needed: maybe not optimal because a user may not want to have
// lp tokens staked. Solution is to do a sweep on all tokens in the `BaseLevSwapper` contract
if (keptAmount > 0) angleStaker().deposit(keptAmount, to);
}
}
// ============================= VIRTUAL FUNCTIONS =============================
/// @notice Reference to the native `tokens` of the Curve pool
function tokens() public pure virtual returns (IERC20[2] memory);
/// @notice Reference to the Curve Pool contract
function metapool() public pure virtual returns (IMetaPool2);
/// @notice Reference to the actual collateral contract
/// @dev Most of the time this is the same address as the `metapool`
function lpToken() public pure virtual returns (IERC20);
}// SPDX-License-Identifier: GPL-3.0
pragma solidity ^0.8.17;
import "../../CurveLevSwapper2Tokens.sol";
/// @title CurveLevSwapper2Pool
/// @author Angle Labs, Inc
/// @notice Implements a leverage swapper to gain/reduce exposure to the 2Pool Curve LP token
contract CurveLevSwapper2Pool is CurveLevSwapper2Tokens {
constructor(
ICoreBorrow _core,
IUniswapV3Router _uniV3Router,
address _oneInch,
IAngleRouterSidechain _angleRouter
) CurveLevSwapper2Tokens(_core, _uniV3Router, _oneInch, _angleRouter) {}
/// @inheritdoc BaseLevSwapper
function angleStaker() public view virtual override returns (IBorrowStaker) {
return IBorrowStaker(address(0));
}
/// @inheritdoc CurveLevSwapper2Tokens
function tokens() public pure override returns (IERC20[2] memory) {
return [IERC20(0xFF970A61A04b1cA14834A43f5dE4533eBDDB5CC8), IERC20(0xFd086bC7CD5C481DCC9C85ebE478A1C0b69FCbb9)];
}
/// @inheritdoc CurveLevSwapper2Tokens
function metapool() public pure override returns (IMetaPool2) {
return IMetaPool2(0x7f90122BF0700F9E7e1F688fe926940E8839F353);
}
/// @inheritdoc CurveLevSwapper2Tokens
function lpToken() public pure override returns (IERC20) {
return IERC20(0x7f90122BF0700F9E7e1F688fe926940E8839F353);
}
}// SPDX-License-Identifier: GPL-3.0
pragma solidity ^0.8.17;
/// @notice All possible removals on Curve
enum CurveRemovalType {
oneCoin,
balance,
imbalance,
none
}// SPDX-License-Identifier: GPL-3.0
pragma solidity ^0.8.12;
/// @notice Action types
enum ActionType {
transfer,
wrap,
wrapNative,
sweep,
sweepNative,
unwrap,
unwrapNative,
swapIn,
swapOut,
uniswapV3,
oneInch,
claimRewards,
gaugeDeposit,
borrower
}
/// @notice Data needed to get permits
struct PermitType {
address token;
address owner;
uint256 value;
uint256 deadline;
uint8 v;
bytes32 r;
bytes32 s;
}
/// @title IAngleRouterSidechain
/// @author Angle Labs, Inc.
/// @notice Interface for the `AngleRouter` contract on other chains
interface IAngleRouterSidechain {
function mixer(
PermitType[] memory paramsPermit,
ActionType[] memory actions,
bytes[] calldata data
) external;
}// SPDX-License-Identifier: GPL-3.0
pragma solidity ^0.8.12;
/// @title ICoreBorrow
/// @author Angle Labs, Inc.
/// @notice Interface for the `CoreBorrow` contract
/// @dev This interface only contains functions of the `CoreBorrow` contract which are called by other contracts
/// of this module
interface ICoreBorrow {
/// @notice Checks if an address corresponds to a treasury of a stablecoin with a flash loan
/// module initialized on it
/// @param treasury Address to check
/// @return Whether the address has the `FLASHLOANER_TREASURY_ROLE` or not
function isFlashLoanerTreasury(address treasury) external view returns (bool);
/// @notice Checks whether an address is governor of the Angle Protocol or not
/// @param admin Address to check
/// @return Whether the address has the `GOVERNOR_ROLE` or not
function isGovernor(address admin) external view returns (bool);
/// @notice Checks whether an address is governor or a guardian of the Angle Protocol or not
/// @param admin Address to check
/// @return Whether the address has the `GUARDIAN_ROLE` or not
/// @dev Governance should make sure when adding a governor to also give this governor the guardian
/// role by calling the `addGovernor` function
function isGovernorOrGuardian(address admin) external view returns (bool);
}// SPDX-License-Identifier: GPL-3.0
pragma solidity ^0.8.12;
import "@openzeppelin/contracts/token/ERC20/IERC20.sol";
/// @title ISwapper
/// @author Angle Labs, Inc.
/// @notice Interface for Swapper contracts
/// @dev This interface defines the key functions `Swapper` contracts should have when interacting with
/// Angle
interface ISwapper {
/// @notice Notifies a contract that an address should be given `outToken` from `inToken`
/// @param inToken Address of the token received
/// @param outToken Address of the token to obtain
/// @param outTokenRecipient Address to which the outToken should be sent
/// @param outTokenOwed Minimum amount of outToken the `outTokenRecipient` address should have at the end of the call
/// @param inTokenObtained Amount of collateral obtained by a related address prior
/// to the call to this function
/// @param data Extra data needed (to encode Uniswap swaps for instance)
function swap(
IERC20 inToken,
IERC20 outToken,
address outTokenRecipient,
uint256 outTokenOwed,
uint256 inTokenObtained,
bytes calldata data
) external;
}// SPDX-License-Identifier: GPL-3.0
pragma solidity ^0.8.12;
/// @title IWStETH
/// @author Angle Labs, Inc.
/// @notice Interface for the `WStETH` contract
/// @dev This interface only contains functions of the `WStETH` which are called by other contracts
/// of this module
interface IWStETH {
function wrap(uint256 _stETHAmount) external returns (uint256);
function stETH() external view returns (address);
}// SPDX-License-Identifier: GPL-3.0
pragma solidity ^0.8.12;
struct ExactInputParams {
bytes path;
address recipient;
uint256 deadline;
uint256 amountIn;
uint256 amountOutMinimum;
}
/// @title Router token swapping functionality
/// @notice Functions for swapping tokens via Uniswap V3
interface IUniswapV3Router {
/// @notice Swaps `amountIn` of one token for as much as possible of another along the specified path
/// @param params The parameters necessary for the multi-hop swap, encoded as `ExactInputParams` in calldata
/// @return amountOut The amount of the received token
function exactInput(ExactInputParams calldata params) external payable returns (uint256 amountOut);
}
/// @title Router for price estimation functionality
/// @notice Functions for getting the price of one token with respect to another using Uniswap V2
/// @dev This interface is only used for non critical elements of the protocol
interface IUniswapV2Router {
/// @notice Given an input asset amount, returns the maximum output amount of the
/// other asset (accounting for fees) given reserves.
/// @param path Addresses of the pools used to get prices
function getAmountsOut(uint256 amountIn, address[] calldata path) external view returns (uint256[] memory amounts);
function swapExactTokensForTokens(
uint256 swapAmount,
uint256 minExpected,
address[] calldata path,
address receiver,
uint256 swapDeadline
) external;
}// SPDX-License-Identifier: GPL-3.0
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*/
pragma solidity ^0.8.12;
import "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol";
import "@openzeppelin/contracts/token/ERC20/IERC20.sol";
import "../interfaces/IAngleRouterSidechain.sol";
import "../interfaces/ICoreBorrow.sol";
import "../interfaces/ISwapper.sol";
import "../interfaces/external/lido/IWStETH.sol";
import "../interfaces/external/uniswap/IUniswapRouter.sol";
// ==================================== ENUM ===================================
/// @notice All possible swaps
enum SwapType {
UniswapV3,
oneInch,
AngleRouter,
Leverage,
None
}
/// @title Swapper
/// @author Angle Labs, Inc.
/// @notice Swapper contract facilitating interactions with Angle VaultManager contracts, notably
/// liquidation and leverage transactions
contract Swapper is ISwapper {
using SafeERC20 for IERC20;
// ===================== CONSTANTS AND IMMUTABLE VARIABLES =====================
/// @notice Reference to the `CoreBorrow` contract of the module which handles all AccessControl logic
ICoreBorrow public immutable core;
/// @notice Uniswap Router contract
IUniswapV3Router public immutable uniV3Router;
/// @notice 1inch Router
address public immutable oneInch;
/// @notice AngleRouter
IAngleRouterSidechain public immutable angleRouter;
// =================================== ERRORS ==================================
error EmptyReturnMessage();
error IncompatibleLengths();
error NotGovernorOrGuardian();
error TooSmallAmountOut();
error ZeroAddress();
/// @notice Constructor of the contract
/// @param _core Core address
/// @param _uniV3Router UniswapV3 Router address
/// @param _oneInch 1inch Router address
/// @param _angleRouter AngleRouter contract address
constructor(
ICoreBorrow _core,
IUniswapV3Router _uniV3Router,
address _oneInch,
IAngleRouterSidechain _angleRouter
) {
if (address(_core) == address(0) || _oneInch == address(0) || address(_angleRouter) == address(0))
revert ZeroAddress();
core = _core;
uniV3Router = _uniV3Router;
oneInch = _oneInch;
angleRouter = _angleRouter;
}
// ========================= EXTERNAL ACCESS FUNCTIONS =========================
/// @inheritdoc ISwapper
/// @dev This function swaps the `inToken` to the `outToken` by doing a UniV3 swap, a 1inch swap or by interacting
/// with the `AngleRouter` contract
/// @dev One slippage check is performed at the end of the call
/// @dev In this implementation, the function tries to make sure that the `outTokenRecipient` address has at the end
/// of the call `outTokenOwed`, leftover tokens are sent to a `to` address which by default is the `outTokenRecipient`
function swap(
IERC20 inToken,
IERC20 outToken,
address outTokenRecipient,
uint256 outTokenOwed,
uint256 inTokenObtained,
bytes memory data
) external {
// Address to receive the surplus amount of token at the end of the call
address to;
// For slippage protection, it is checked at the end of the call
uint256 minAmountOut;
// Type of the swap to execute: if `swapType == 4`, then it is optional to swap
uint256 swapType;
// We're reusing the `data` variable (it can be `path` on UniswapV3, a payload for 1inch or like encoded actions
// for a router call)
(to, minAmountOut, swapType, data) = abi.decode(data, (address, uint256, uint256, bytes));
to = (to == address(0)) ? outTokenRecipient : to;
_swap(inToken, inTokenObtained, SwapType(swapType), data);
// A final slippage check is performed after the swaps
uint256 outTokenBalance = outToken.balanceOf(address(this));
if (outTokenBalance < minAmountOut) revert TooSmallAmountOut();
// The `outTokenRecipient` may already have enough in balance, in which case there's no need to transfer
// to this address the token and everything can be given to the `to` address
uint256 outTokenBalanceRecipient = outToken.balanceOf(outTokenRecipient);
if (outTokenBalanceRecipient >= outTokenOwed || to == outTokenRecipient)
outToken.safeTransfer(to, outTokenBalance);
else {
// The `outTokenRecipient` should receive the delta to make sure its end balance is equal to `outTokenOwed`
// Any leftover in this case is sent to the `to` address
// The function reverts if it did not obtain more than `outTokenOwed - outTokenBalanceRecipient` from the swap
outToken.safeTransfer(outTokenRecipient, outTokenOwed - outTokenBalanceRecipient);
outToken.safeTransfer(to, outTokenBalanceRecipient + outTokenBalance - outTokenOwed);
}
// Reusing the `inTokenObtained` variable for the `inToken` balance
// Sending back the remaining amount of inTokens to the `to` address: it is possible that not the full `inTokenObtained`
// is swapped to `outToken` if we're using the `1inch` payload
inTokenObtained = inToken.balanceOf(address(this));
if (inTokenObtained != 0) inToken.safeTransfer(to, inTokenObtained);
}
// ============================ GOVERNANCE FUNCTION ============================
/// @notice Changes allowances of this contract for different tokens
/// @param tokens Addresses of the tokens to allow
/// @param spenders Addresses to allow transfer
/// @param amounts Amounts to allow
function changeAllowance(
IERC20[] calldata tokens,
address[] calldata spenders,
uint256[] calldata amounts
) external {
if (!core.isGovernorOrGuardian(msg.sender)) revert NotGovernorOrGuardian();
uint256 tokensLength = tokens.length;
if (tokensLength != spenders.length || tokensLength != amounts.length) revert IncompatibleLengths();
for (uint256 i; i < tokensLength; ++i) {
_changeAllowance(tokens[i], spenders[i], amounts[i]);
}
}
// ========================= INTERNAL UTILITY FUNCTIONS ========================
/// @notice Internal version of the `_changeAllowance` function
function _changeAllowance(
IERC20 token,
address spender,
uint256 amount
) internal {
uint256 currentAllowance = token.allowance(address(this), spender);
if (currentAllowance < amount) {
token.safeIncreaseAllowance(spender, amount - currentAllowance);
} else if (currentAllowance > amount) {
token.safeDecreaseAllowance(spender, currentAllowance - amount);
}
}
/// @notice Checks the allowance for a contract and updates it to the max if it is not big enough
/// @param token Token for which allowance should be checked
/// @param spender Address to grant allowance to
/// @param amount Minimum amount of tokens needed for the allowance
function _checkAllowance(
IERC20 token,
address spender,
uint256 amount
) internal {
uint256 currentAllowance = token.allowance(address(this), spender);
if (currentAllowance < amount) token.safeIncreaseAllowance(spender, type(uint256).max - currentAllowance);
}
/// @notice Performs a swap using either Uniswap, 1inch. This function can also stake stETH to wstETH
/// @param inToken Token to swap
/// @param amount Amount of tokens to swap
/// @param swapType Type of the swap to perform
/// @param args Extra args for the swap: in the case of Uniswap it should be a path, for 1inch it should be
/// a payload
/// @dev This function does nothing if `swapType` is None and it simply passes on the `amount` it received
/// @dev No slippage is specified in the actions given here as a final slippage check is performed
/// after the call to this function
function _swap(
IERC20 inToken,
uint256 amount,
SwapType swapType,
bytes memory args
) internal {
if (swapType == SwapType.UniswapV3) _swapOnUniswapV3(inToken, amount, args);
else if (swapType == SwapType.oneInch) _swapOn1inch(inToken, args);
else if (swapType == SwapType.AngleRouter) _angleRouterActions(inToken, args);
else if (swapType == SwapType.Leverage) _swapLeverage(args);
}
/// @notice Performs a UniswapV3 swap
/// @param inToken Token to swap
/// @param amount Amount of tokens to swap
/// @param path Path for the UniswapV3 swap: this encodes the out token that is going to be obtained
/// @dev This function does not check the out token obtained here: if it is wrongly specified, either
/// the `swap` function could fail or these tokens could stay on the contract
function _swapOnUniswapV3(
IERC20 inToken,
uint256 amount,
bytes memory path
) internal returns (uint256 amountOut) {
// We need more than `amount` of allowance to the contract
_checkAllowance(inToken, address(uniV3Router), amount);
amountOut = uniV3Router.exactInput(ExactInputParams(path, address(this), block.timestamp, amount, 0));
}
/// @notice Allows to swap any token to an accepted collateral via 1inch API
/// @param inToken Token received for the 1inch swap
/// @param payload Bytes needed for 1inch API
function _swapOn1inch(IERC20 inToken, bytes memory payload) internal returns (uint256 amountOut) {
_changeAllowance(inToken, oneInch, type(uint256).max);
//solhint-disable-next-line
(bool success, bytes memory result) = oneInch.call(payload);
if (!success) _revertBytes(result);
amountOut = abi.decode(result, (uint256));
}
/// @notice Performs actions with the router contract of the protocol on the corresponding chain
/// @param inToken Token concerned by the action and for which
function _angleRouterActions(IERC20 inToken, bytes memory args) internal {
(ActionType[] memory actions, bytes[] memory actionData) = abi.decode(args, (ActionType[], bytes[]));
_changeAllowance(inToken, address(angleRouter), type(uint256).max);
PermitType[] memory permits;
angleRouter.mixer(permits, actions, actionData);
}
/// @notice Allows to take leverage or deleverage via a specific contract
/// @param payload Bytes needed for 1inch API
/// @dev This function is to be implemented if the swapper concerns a token that requires some actions
/// not supported by 1inch or UniV3
function _swapLeverage(bytes memory payload) internal virtual returns (uint256 amountOut) {}
/// @notice Internal function used for error handling
/// @param errMsg Error message received
function _revertBytes(bytes memory errMsg) internal pure {
if (errMsg.length != 0) {
//solhint-disable-next-line
assembly {
revert(add(32, errMsg), mload(errMsg))
}
}
revert EmptyReturnMessage();
}
}// 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);
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC20/extensions/draft-IERC20Permit.sol)
pragma solidity ^0.8.0;
/**
* @dev Interface of the ERC20 Permit extension allowing approvals to be made via signatures, as defined in
* https://eips.ethereum.org/EIPS/eip-2612[EIP-2612].
*
* Adds the {permit} method, which can be used to change an account's ERC20 allowance (see {IERC20-allowance}) by
* presenting a message signed by the account. By not relying on {IERC20-approve}, the token holder account doesn't
* need to send a transaction, and thus is not required to hold Ether at all.
*/
interface IERC20Permit {
/**
* @dev Sets `value` as the allowance of `spender` over ``owner``'s tokens,
* given ``owner``'s signed approval.
*
* IMPORTANT: The same issues {IERC20-approve} has related to transaction
* ordering also apply here.
*
* Emits an {Approval} event.
*
* Requirements:
*
* - `spender` cannot be the zero address.
* - `deadline` must be a timestamp in the future.
* - `v`, `r` and `s` must be a valid `secp256k1` signature from `owner`
* over the EIP712-formatted function arguments.
* - the signature must use ``owner``'s current nonce (see {nonces}).
*
* For more information on the signature format, see the
* https://eips.ethereum.org/EIPS/eip-2612#specification[relevant EIP
* section].
*/
function permit(
address owner,
address spender,
uint256 value,
uint256 deadline,
uint8 v,
bytes32 r,
bytes32 s
) external;
/**
* @dev Returns the current nonce for `owner`. This value must be
* included whenever a signature is generated for {permit}.
*
* Every successful call to {permit} increases ``owner``'s nonce by one. This
* prevents a signature from being used multiple times.
*/
function nonces(address owner) external view returns (uint256);
/**
* @dev Returns the domain separator used in the encoding of the signature for {permit}, as defined by {EIP712}.
*/
// solhint-disable-next-line func-name-mixedcase
function DOMAIN_SEPARATOR() external view returns (bytes32);
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (token/ERC20/utils/SafeERC20.sol)
pragma solidity ^0.8.0;
import "../IERC20.sol";
import "../extensions/draft-IERC20Permit.sol";
import "../../../utils/Address.sol";
/**
* @title SafeERC20
* @dev Wrappers around ERC20 operations that throw on failure (when the token
* contract returns false). Tokens that return no value (and instead revert or
* throw on failure) are also supported, non-reverting calls are assumed to be
* successful.
* To use this library you can add a `using SafeERC20 for IERC20;` statement to your contract,
* which allows you to call the safe operations as `token.safeTransfer(...)`, etc.
*/
library SafeERC20 {
using Address for address;
function safeTransfer(
IERC20 token,
address to,
uint256 value
) internal {
_callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value));
}
function safeTransferFrom(
IERC20 token,
address from,
address to,
uint256 value
) internal {
_callOptionalReturn(token, abi.encodeWithSelector(token.transferFrom.selector, from, to, value));
}
/**
* @dev Deprecated. This function has issues similar to the ones found in
* {IERC20-approve}, and its usage is discouraged.
*
* Whenever possible, use {safeIncreaseAllowance} and
* {safeDecreaseAllowance} instead.
*/
function safeApprove(
IERC20 token,
address spender,
uint256 value
) internal {
// safeApprove should only be called when setting an initial allowance,
// or when resetting it to zero. To increase and decrease it, use
// 'safeIncreaseAllowance' and 'safeDecreaseAllowance'
require(
(value == 0) || (token.allowance(address(this), spender) == 0),
"SafeERC20: approve from non-zero to non-zero allowance"
);
_callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, value));
}
function safeIncreaseAllowance(
IERC20 token,
address spender,
uint256 value
) internal {
uint256 newAllowance = token.allowance(address(this), spender) + value;
_callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));
}
function safeDecreaseAllowance(
IERC20 token,
address spender,
uint256 value
) internal {
unchecked {
uint256 oldAllowance = token.allowance(address(this), spender);
require(oldAllowance >= value, "SafeERC20: decreased allowance below zero");
uint256 newAllowance = oldAllowance - value;
_callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));
}
}
function safePermit(
IERC20Permit token,
address owner,
address spender,
uint256 value,
uint256 deadline,
uint8 v,
bytes32 r,
bytes32 s
) internal {
uint256 nonceBefore = token.nonces(owner);
token.permit(owner, spender, value, deadline, v, r, s);
uint256 nonceAfter = token.nonces(owner);
require(nonceAfter == nonceBefore + 1, "SafeERC20: permit did not succeed");
}
/**
* @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement
* on the return value: the return value is optional (but if data is returned, it must not be false).
* @param token The token targeted by the call.
* @param data The call data (encoded using abi.encode or one of its variants).
*/
function _callOptionalReturn(IERC20 token, bytes memory data) private {
// We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since
// we're implementing it ourselves. We use {Address.functionCall} to perform this call, which verifies that
// the target address contains contract code and also asserts for success in the low-level call.
bytes memory returndata = address(token).functionCall(data, "SafeERC20: low-level call failed");
if (returndata.length > 0) {
// Return data is optional
require(abi.decode(returndata, (bool)), "SafeERC20: ERC20 operation did not succeed");
}
}
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (utils/Address.sol)
pragma solidity ^0.8.1;
/**
* @dev Collection of functions related to the address type
*/
library Address {
/**
* @dev Returns true if `account` is a contract.
*
* [IMPORTANT]
* ====
* It is unsafe to assume that an address for which this function returns
* false is an externally-owned account (EOA) and not a contract.
*
* Among others, `isContract` will return false for the following
* types of addresses:
*
* - an externally-owned account
* - a contract in construction
* - an address where a contract will be created
* - an address where a contract lived, but was destroyed
* ====
*
* [IMPORTANT]
* ====
* You shouldn't rely on `isContract` to protect against flash loan attacks!
*
* Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets
* like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract
* constructor.
* ====
*/
function isContract(address account) internal view returns (bool) {
// This method relies on extcodesize/address.code.length, which returns 0
// for contracts in construction, since the code is only stored at the end
// of the constructor execution.
return account.code.length > 0;
}
/**
* @dev Replacement for Solidity's `transfer`: sends `amount` wei to
* `recipient`, forwarding all available gas and reverting on errors.
*
* https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
* of certain opcodes, possibly making contracts go over the 2300 gas limit
* imposed by `transfer`, making them unable to receive funds via
* `transfer`. {sendValue} removes this limitation.
*
* https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].
*
* IMPORTANT: because control is transferred to `recipient`, care must be
* taken to not create reentrancy vulnerabilities. Consider using
* {ReentrancyGuard} or the
* https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
*/
function sendValue(address payable recipient, uint256 amount) internal {
require(address(this).balance >= amount, "Address: insufficient balance");
(bool success, ) = recipient.call{value: amount}("");
require(success, "Address: unable to send value, recipient may have reverted");
}
/**
* @dev Performs a Solidity function call using a low level `call`. A
* plain `call` is an unsafe replacement for a function call: use this
* function instead.
*
* If `target` reverts with a revert reason, it is bubbled up by this
* function (like regular Solidity function calls).
*
* Returns the raw returned data. To convert to the expected return value,
* use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
*
* Requirements:
*
* - `target` must be a contract.
* - calling `target` with `data` must not revert.
*
* _Available since v3.1._
*/
function functionCall(address target, bytes memory data) internal returns (bytes memory) {
return functionCall(target, data, "Address: low-level call failed");
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with
* `errorMessage` as a fallback revert reason when `target` reverts.
*
* _Available since v3.1._
*/
function functionCall(
address target,
bytes memory data,
string memory errorMessage
) internal returns (bytes memory) {
return functionCallWithValue(target, data, 0, errorMessage);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but also transferring `value` wei to `target`.
*
* Requirements:
*
* - the calling contract must have an ETH balance of at least `value`.
* - the called Solidity function must be `payable`.
*
* _Available since v3.1._
*/
function functionCallWithValue(
address target,
bytes memory data,
uint256 value
) internal returns (bytes memory) {
return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
}
/**
* @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but
* with `errorMessage` as a fallback revert reason when `target` reverts.
*
* _Available since v3.1._
*/
function functionCallWithValue(
address target,
bytes memory data,
uint256 value,
string memory errorMessage
) internal returns (bytes memory) {
require(address(this).balance >= value, "Address: insufficient balance for call");
require(isContract(target), "Address: call to non-contract");
(bool success, bytes memory returndata) = target.call{value: value}(data);
return verifyCallResult(success, returndata, errorMessage);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but performing a static call.
*
* _Available since v3.3._
*/
function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
return functionStaticCall(target, data, "Address: low-level static call failed");
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
* but performing a static call.
*
* _Available since v3.3._
*/
function functionStaticCall(
address target,
bytes memory data,
string memory errorMessage
) internal view returns (bytes memory) {
require(isContract(target), "Address: static call to non-contract");
(bool success, bytes memory returndata) = target.staticcall(data);
return verifyCallResult(success, returndata, errorMessage);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but performing a delegate call.
*
* _Available since v3.4._
*/
function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {
return functionDelegateCall(target, data, "Address: low-level delegate call failed");
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
* but performing a delegate call.
*
* _Available since v3.4._
*/
function functionDelegateCall(
address target,
bytes memory data,
string memory errorMessage
) internal returns (bytes memory) {
require(isContract(target), "Address: delegate call to non-contract");
(bool success, bytes memory returndata) = target.delegatecall(data);
return verifyCallResult(success, returndata, errorMessage);
}
/**
* @dev Tool to verifies that a low level call was successful, and revert if it wasn't, either by bubbling the
* revert reason using the provided one.
*
* _Available since v4.3._
*/
function verifyCallResult(
bool success,
bytes memory returndata,
string memory errorMessage
) internal pure returns (bytes memory) {
if (success) {
return returndata;
} else {
// Look for revert reason and bubble it up if present
if (returndata.length > 0) {
// The easiest way to bubble the revert reason is using memory via assembly
/// @solidity memory-safe-assembly
assembly {
let returndata_size := mload(returndata)
revert(add(32, returndata), returndata_size)
}
} else {
revert(errorMessage);
}
}
}
}{
"remappings": [
"@chainlink/=node_modules/@chainlink/",
"@ensdomains/=lib/borrow-contracts/node_modules/@ensdomains/",
"@openzeppelin/=node_modules/@openzeppelin/",
"@uniswap/=lib/borrow-contracts/node_modules/@uniswap/",
"borrow-contracts/=lib/borrow-contracts/",
"borrow/=lib/borrow-contracts/contracts/",
"ds-test/=lib/forge-std/lib/ds-test/src/",
"eth-gas-reporter/=node_modules/eth-gas-reporter/",
"forge-std/=lib/forge-std/src/",
"hardhat-deploy/=node_modules/hardhat-deploy/",
"hardhat/=node_modules/hardhat/"
],
"optimizer": {
"enabled": true,
"runs": 1000000
},
"metadata": {
"bytecodeHash": "ipfs"
},
"outputSelection": {
"*": {
"*": [
"evm.bytecode",
"evm.deployedBytecode",
"devdoc",
"userdoc",
"metadata",
"abi"
]
}
},
"evmVersion": "london",
"libraries": {}
}Contract Security Audit
- No Contract Security Audit Submitted- Submit Audit Here
Contract ABI
API[{"inputs":[{"internalType":"contract ICoreBorrow","name":"_core","type":"address"},{"internalType":"contract IUniswapV3Router","name":"_uniV3Router","type":"address"},{"internalType":"address","name":"_oneInch","type":"address"},{"internalType":"contract IAngleRouterSidechain","name":"_angleRouter","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"inputs":[],"name":"EmptyReturnMessage","type":"error"},{"inputs":[],"name":"IncompatibleLengths","type":"error"},{"inputs":[],"name":"NotGovernorOrGuardian","type":"error"},{"inputs":[],"name":"TooSmallAmountOut","type":"error"},{"inputs":[],"name":"ZeroAddress","type":"error"},{"inputs":[],"name":"angleRouter","outputs":[{"internalType":"contract IAngleRouterSidechain","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"angleStaker","outputs":[{"internalType":"contract IBorrowStaker","name":"","type":"address"}],"stateMutability":"pure","type":"function"},{"inputs":[{"internalType":"contract IERC20[]","name":"tokens","type":"address[]"},{"internalType":"address[]","name":"spenders","type":"address[]"},{"internalType":"uint256[]","name":"amounts","type":"uint256[]"}],"name":"changeAllowance","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"core","outputs":[{"internalType":"contract ICoreBorrow","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"lpToken","outputs":[{"internalType":"contract IERC20","name":"","type":"address"}],"stateMutability":"pure","type":"function"},{"inputs":[],"name":"metapool","outputs":[{"internalType":"contract IMetaPool2","name":"","type":"address"}],"stateMutability":"pure","type":"function"},{"inputs":[],"name":"oneInch","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"contract IERC20","name":"inToken","type":"address"},{"internalType":"contract IERC20","name":"outToken","type":"address"},{"internalType":"address","name":"outTokenRecipient","type":"address"},{"internalType":"uint256","name":"outTokenOwed","type":"uint256"},{"internalType":"uint256","name":"inTokenObtained","type":"uint256"},{"internalType":"bytes","name":"data","type":"bytes"}],"name":"swap","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"tokens","outputs":[{"internalType":"contract IERC20[2]","name":"","type":"address[2]"}],"stateMutability":"pure","type":"function"},{"inputs":[],"name":"uniV3Router","outputs":[{"internalType":"contract IUniswapV3Router","name":"","type":"address"}],"stateMutability":"view","type":"function"}]Contract Creation Code
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Constructor Arguments (ABI-Encoded and is the last bytes of the Contract Creation Code above)
00000000000000000000000031429d1856ad1377a8a0079410b297e1a9e214c2000000000000000000000000e592427a0aece92de3edee1f18e0157c058615640000000000000000000000001111111254eeb25477b68fb85ed929f73a9605820000000000000000000000009a33e690aa78a4c346e72f7a5e16e5d7278be835
-----Decoded View---------------
Arg [0] : _core (address): 0x31429d1856aD1377A8A0079410B297e1a9e214c2
Arg [1] : _uniV3Router (address): 0xE592427A0AEce92De3Edee1F18E0157C05861564
Arg [2] : _oneInch (address): 0x1111111254EEB25477B68fb85Ed929f73A960582
Arg [3] : _angleRouter (address): 0x9A33e690AA78A4c346e72f7A5e16e5d7278BE835
-----Encoded View---------------
4 Constructor Arguments found :
Arg [0] : 00000000000000000000000031429d1856ad1377a8a0079410b297e1a9e214c2
Arg [1] : 000000000000000000000000e592427a0aece92de3edee1f18e0157c05861564
Arg [2] : 0000000000000000000000001111111254eeb25477b68fb85ed929f73a960582
Arg [3] : 0000000000000000000000009a33e690aa78a4c346e72f7a5e16e5d7278be835
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Net Worth in USD
$0.00
Net Worth in ETH
0
Multichain Portfolio | 35 Chains
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A contract address hosts a smart contract, which is a set of code stored on the blockchain that runs when predetermined conditions are met. Learn more about addresses in our Knowledge Base.