Source Code
Latest 25 from a total of 57 transactions
| Transaction Hash |
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| Unstake And With... | 22042358 | 310 days ago | IN | 0 ETH | 0.0049778 | ||||
| Unstake And With... | 22009313 | 314 days ago | IN | 0 ETH | 0.00585805 | ||||
| Unstake And With... | 21997564 | 316 days ago | IN | 0 ETH | 0.0045751 | ||||
| Unstake And With... | 21946472 | 323 days ago | IN | 0 ETH | 0.00857282 | ||||
| Unstake And With... | 21904866 | 329 days ago | IN | 0 ETH | 0.00419592 | ||||
| Unstake And With... | 21809618 | 342 days ago | IN | 0 ETH | 0.00622351 | ||||
| Unstake And With... | 21717976 | 355 days ago | IN | 0 ETH | 0.05115665 | ||||
| Unstake And With... | 21485696 | 388 days ago | IN | 0 ETH | 0.01856653 | ||||
| Unstake And With... | 21485691 | 388 days ago | IN | 0 ETH | 0.01991203 | ||||
| Unstake And With... | 21045415 | 449 days ago | IN | 0 ETH | 0.023233 | ||||
| Unstake And With... | 21031407 | 451 days ago | IN | 0 ETH | 0.03279136 | ||||
| Unstake And With... | 20850702 | 476 days ago | IN | 0 ETH | 0.01848101 | ||||
| Unstake And With... | 20639668 | 506 days ago | IN | 0 ETH | 0.00823314 | ||||
| Unstake And With... | 20283392 | 555 days ago | IN | 0 ETH | 0.07716391 | ||||
| Unstake And With... | 20244454 | 561 days ago | IN | 0 ETH | 0.00906913 | ||||
| Unstake And With... | 20218850 | 564 days ago | IN | 0 ETH | 0.03425344 | ||||
| Unstake And With... | 20102368 | 581 days ago | IN | 0 ETH | 0.01631047 | ||||
| Unstake And With... | 20046232 | 589 days ago | IN | 0 ETH | 0.02311865 | ||||
| Unstake And With... | 19807430 | 622 days ago | IN | 0 ETH | 0.01602098 | ||||
| Unstake And With... | 19784094 | 625 days ago | IN | 0 ETH | 0.0590914 | ||||
| Unstake And With... | 19644434 | 645 days ago | IN | 0 ETH | 0.05437252 | ||||
| Unstake And With... | 19627406 | 647 days ago | IN | 0 ETH | 0.09466767 | ||||
| Unstake And With... | 19620519 | 648 days ago | IN | 0 ETH | 0.10322909 | ||||
| Unstake And With... | 19617883 | 648 days ago | IN | 0 ETH | 0.12219318 | ||||
| Unstake And With... | 19607320 | 650 days ago | IN | 0 ETH | 0.05736631 |
Latest 25 internal transactions (View All)
Advanced mode:
| Parent Transaction Hash | Method | Block |
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| Deposit | 23055502 | 168 days ago | 3.21842417 ETH | ||||
| Transfer | 23055502 | 168 days ago | 3.21842417 ETH | ||||
| Deposit | 23055502 | 168 days ago | 4.121374 ETH | ||||
| Transfer | 23055502 | 168 days ago | 4.121374 ETH | ||||
| Deposit | 23055502 | 168 days ago | 5.00923374 ETH | ||||
| Transfer | 23055502 | 168 days ago | 5.00923374 ETH | ||||
| Deposit | 22884014 | 192 days ago | 12.86362 ETH | ||||
| Transfer | 22884014 | 192 days ago | 12.86362 ETH | ||||
| Deposit | 22884014 | 192 days ago | 14.09717621 ETH | ||||
| Transfer | 22884014 | 192 days ago | 14.09717621 ETH | ||||
| Deposit | 22884014 | 192 days ago | 20.38340762 ETH | ||||
| Transfer | 22884014 | 192 days ago | 20.38340762 ETH | ||||
| Deposit | 22531725 | 241 days ago | 1.78505042 ETH | ||||
| Transfer | 22531725 | 241 days ago | 1.78505042 ETH | ||||
| Deposit | 22526940 | 242 days ago | 1.06125393 ETH | ||||
| Transfer | 22526940 | 242 days ago | 1.06125393 ETH | ||||
| Deposit | 22447699 | 253 days ago | 1.3958325 ETH | ||||
| Transfer | 22447699 | 253 days ago | 1.3958325 ETH | ||||
| Deposit | 22447699 | 253 days ago | 4.85473381 ETH | ||||
| Transfer | 22447699 | 253 days ago | 4.85473381 ETH | ||||
| Deposit | 22447699 | 253 days ago | 6.73215165 ETH | ||||
| Transfer | 22447699 | 253 days ago | 6.73215165 ETH | ||||
| Deposit | 22359828 | 266 days ago | 0.50974021 ETH | ||||
| Transfer | 22359828 | 266 days ago | 0.50974021 ETH | ||||
| Deposit | 22359828 | 266 days ago | 3.26594239 ETH |
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This contract may be a proxy contract. Click on More Options and select Is this a proxy? to confirm and enable the "Read as Proxy" & "Write as Proxy" tabs.
Contract Name:
ConicEthPool
Compiler Version
v0.8.17+commit.8df45f5f
Contract Source Code (Solidity Standard Json-Input format)
// SPDX-License-Identifier: GPL-3.0-or-later
pragma solidity 0.8.17;
import "BaseConicPool.sol";
import "IPoolAdapter.sol";
contract ConicEthPool is BaseConicPool {
using EnumerableSet for EnumerableSet.AddressSet;
using ScaledMath for uint256;
constructor(
address _underlying,
IRewardManager _rewardManager,
address _controller,
string memory _lpTokenName,
string memory _symbol,
address _cvx,
address _crv
) BaseConicPool(_underlying, _rewardManager, _controller, _lpTokenName, _symbol, _cvx, _crv) {}
function _updatePriceCache() internal override {
address[] memory underlyings = getAllUnderlyingCoins();
IOracle priceOracle_ = controller.priceOracle();
uint256 ethUsdPrice_ = priceOracle_.getUSDPrice(address(0));
for (uint256 i; i < underlyings.length; i++) {
address coin = underlyings[i];
uint256 priceInUsd_ = priceOracle_.getUSDPrice(coin);
_cachedPrices[coin] = priceInUsd_.divDown(ethUsdPrice_);
}
}
function _isAssetDepegged(address asset_) internal view override returns (bool) {
// ETH has no sense of peg per se, so always return false for it
if (asset_ == address(underlying)) return false;
uint256 cachedPrice_ = _cachedPrices[asset_];
IOracle priceOracle_ = controller.priceOracle();
uint256 ethUsdPrice_ = priceOracle_.getUSDPrice(address(0));
uint256 currentPriceUsd_ = priceOracle_.getUSDPrice(asset_);
uint256 currentPrice_ = currentPriceUsd_.divDown(ethUsdPrice_);
uint256 priceDiff_ = cachedPrice_.absSub(currentPrice_);
uint256 priceDiffPercent_ = priceDiff_.divDown(cachedPrice_);
return priceDiffPercent_ > depegThreshold;
}
function runSanityChecks() public override {
ICurveRegistryCache curveRegistryCache = controller.curveRegistryCache();
address[] memory pools = weightManager.allPools();
for (uint256 i; i < pools.length; i++) {
address pool_ = pools[i];
controller.poolAdapterFor(pool_).executeSanityCheck(pool_);
address basePool = curveRegistryCache.basePool(pool_);
if (basePool != address(0)) {
controller.poolAdapterFor(basePool).executeSanityCheck(basePool);
}
}
}
}// SPDX-License-Identifier: GPL-3.0-or-later
pragma solidity 0.8.17;
import "Ownable.sol";
import "ERC20.sol";
import "Address.sol";
import "EnumerableSet.sol";
import "EnumerableMap.sol";
import "IERC20.sol";
import "SafeERC20.sol";
import "IERC20Metadata.sol";
import "ERC165Checker.sol";
import "IConicPool.sol";
import "IRewardManager.sol";
import "IWithdrawalProcessor.sol";
import "ICurveRegistryCache.sol";
import "IInflationManager.sol";
import "ILpTokenStaker.sol";
import "IOracle.sol";
import "IBaseRewardPool.sol";
import "LpToken.sol";
import "Pausable.sol";
import "ConicPoolWeightManager.sol";
import "ScaledMath.sol";
import "ArrayExtensions.sol";
abstract contract BaseConicPool is IConicPool, Pausable {
using ArrayExtensions for uint256[];
using ArrayExtensions for address[];
using EnumerableSet for EnumerableSet.AddressSet;
using EnumerableMap for EnumerableMap.AddressToUintMap;
using SafeERC20 for IERC20;
using SafeERC20 for IERC20Metadata;
using SafeERC20 for ILpToken;
using ScaledMath for uint256;
using Address for address;
using ERC165Checker for address;
// Avoid stack depth errors
struct DepositVars {
uint256 exchangeRate;
uint256 underlyingBalanceIncrease;
uint256 mintableUnderlyingAmount;
uint256 lpReceived;
uint256 underlyingBalanceBefore;
uint256 allocatedBalanceBefore;
uint256[] allocatedPerPoolBefore;
uint256 underlyingBalanceAfter;
uint256 allocatedBalanceAfter;
uint256[] allocatedPerPoolAfter;
}
uint256 internal constant _IDLE_RATIO_UPPER_BOUND = 0.2e18;
uint256 internal constant _MIN_DEPEG_THRESHOLD = 0.01e18;
uint256 internal constant _MAX_DEPEG_THRESHOLD = 0.1e18;
uint256 internal constant _MAX_DEVIATION_UPPER_BOUND = 0.2e18;
uint256 internal constant _TOTAL_UNDERLYING_CACHE_EXPIRY = 3 days;
uint256 internal constant _MAX_USD_VALUE_FOR_REMOVING_POOL = 100e18;
uint256 internal constant _MIN_EMERGENCY_REBALANCING_REWARD_FACTOR = 1e18;
uint256 internal constant _MAX_EMERGENCY_REBALANCING_REWARD_FACTOR = 100e18;
IERC20 internal immutable CVX;
IERC20 internal immutable CRV;
IERC20 internal constant CNC = IERC20(0x9aE380F0272E2162340a5bB646c354271c0F5cFC);
address internal constant _WETH_ADDRESS = 0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2;
IERC20Metadata public immutable override underlying;
ILpToken public immutable override lpToken;
IRewardManager public immutable rewardManager;
IConicPoolWeightManager public immutable weightManager;
/// @dev once the deviation gets under this threshold, the reward distribution will be paused
/// until the next rebalancing. This is expressed as a ratio, scaled with 18 decimals
uint256 public maxDeviation = 0.02e18; // 2%
uint256 public maxIdleCurveLpRatio = 0.05e18; // triggers Convex staking when exceeded
bool public isShutdown;
uint256 public depegThreshold = 0.03e18; // 3%
uint256 internal _cacheUpdatedTimestamp;
uint256 internal _cachedTotalUnderlying;
/// @dev `true` if the rebalancing rewards are enabled, i.e. can become active
/// A pool starts rebalancing rewards disabled, and these need to be enabled through governance
bool public rebalancingRewardsEnabled;
/// @dev `true` while the reward distribution is active
bool public rebalancingRewardActive;
/// @notice the time at which rebalancing rewards have been activated
uint64 public rebalancingRewardsActivatedAt;
/// @notice The factor by which the rebalancing reward is multiplied when a pool is depegged
uint256 public emergencyRebalancingRewardsFactor = 10e18;
/// @notice The factor by which the rebalancing reward is multiplied
/// this is 1 (scaled to 18 decimals) for normal rebalancing situations but is set
/// to `emergencyRebalancingRewardsFactor` when a pool is depegged
uint256 public rebalancingRewardsFactor;
/// @dev the absolute value in terms of USD of the total deviation after
/// the weights have been updated
uint256 public totalDeviationAfterWeightUpdate;
mapping(address => uint256) _cachedPrices;
modifier onlyController() {
require(msg.sender == address(controller), "not authorized");
_;
}
constructor(
address _underlying,
IRewardManager _rewardManager,
address _controller,
string memory _lpTokenName,
string memory _symbol,
address _cvx,
address _crv
) Pausable(IController(_controller)) {
require(
_underlying != _cvx && _underlying != _crv && _underlying != address(CNC),
"invalid underlying"
);
underlying = IERC20Metadata(_underlying);
uint8 decimals = IERC20Metadata(_underlying).decimals();
lpToken = new LpToken(_controller, address(this), decimals, _lpTokenName, _symbol);
rewardManager = _rewardManager;
weightManager = new ConicPoolWeightManager(
IController(_controller),
IERC20Metadata(_underlying)
);
CVX = IERC20(_cvx);
CRV = IERC20(_crv);
CVX.safeApprove(address(_rewardManager), type(uint256).max);
CRV.safeApprove(address(_rewardManager), type(uint256).max);
CNC.safeApprove(address(_rewardManager), type(uint256).max);
}
/// @dev We always delegate-call to the Curve handler, which means
/// that we need to be able to receive the ETH to unwrap it and
/// send it to the Curve pool, as well as to receive it back from
/// the Curve pool when withdrawing
receive() external payable {
require(address(underlying) == _WETH_ADDRESS, "not WETH pool");
}
/// @notice Deposit underlying on behalf of someone
/// @param underlyingAmount Amount of underlying to deposit
/// @param minLpReceived The minimum amount of LP to accept from the deposit
/// @return lpReceived The amount of LP received
function depositFor(
address account,
uint256 underlyingAmount,
uint256 minLpReceived,
bool stake
) public override notPaused returns (uint256) {
runSanityChecks();
DepositVars memory vars;
// Preparing deposit
require(!isShutdown, "pool is shut down");
require(underlyingAmount > 0, "deposit amount cannot be zero");
_updateAdapterCachedPrices();
uint256 underlyingPrice_ = controller.priceOracle().getUSDPrice(address(underlying));
// We use the cached price of LP tokens, which is effectively the latest price
// because we just updated the cache
(
vars.underlyingBalanceBefore,
vars.allocatedBalanceBefore,
vars.allocatedPerPoolBefore
) = _getTotalAndPerPoolUnderlying(underlyingPrice_, IPoolAdapter.PriceMode.Cached);
vars.exchangeRate = _exchangeRate(vars.underlyingBalanceBefore);
// Executing deposit
underlying.safeTransferFrom(msg.sender, address(this), underlyingAmount);
_depositToCurve(
vars.allocatedBalanceBefore,
vars.allocatedPerPoolBefore,
underlying.balanceOf(address(this))
);
// Minting LP Tokens
// We use the minimum between the price of the LP tokens before and after deposit
(
vars.underlyingBalanceAfter,
vars.allocatedBalanceAfter,
vars.allocatedPerPoolAfter
) = _getTotalAndPerPoolUnderlying(underlyingPrice_, IPoolAdapter.PriceMode.Minimum);
vars.underlyingBalanceIncrease = vars.underlyingBalanceAfter - vars.underlyingBalanceBefore;
vars.mintableUnderlyingAmount = _min(underlyingAmount, vars.underlyingBalanceIncrease);
vars.lpReceived = vars.mintableUnderlyingAmount.divDown(vars.exchangeRate);
require(vars.lpReceived >= minLpReceived, "too much slippage");
_cachedTotalUnderlying = vars.underlyingBalanceAfter;
_cacheUpdatedTimestamp = block.timestamp;
if (stake) {
lpToken.mint(address(this), vars.lpReceived, account);
ILpTokenStaker lpTokenStaker = controller.lpTokenStaker();
lpToken.forceApprove(address(lpTokenStaker), vars.lpReceived);
lpTokenStaker.stakeFor(vars.lpReceived, address(this), account);
} else {
lpToken.mint(account, vars.lpReceived, account);
}
_handleRebalancingRewards(
account,
vars.allocatedBalanceBefore,
vars.allocatedPerPoolBefore,
vars.allocatedBalanceAfter,
vars.allocatedPerPoolAfter
);
emit Deposit(msg.sender, account, underlyingAmount, vars.lpReceived);
return vars.lpReceived;
}
/// @notice Deposit underlying
/// @param underlyingAmount Amount of underlying to deposit
/// @param minLpReceived The minimum amoun of LP to accept from the deposit
/// @return lpReceived The amount of LP received
function deposit(
uint256 underlyingAmount,
uint256 minLpReceived
) external override returns (uint256) {
return depositFor(msg.sender, underlyingAmount, minLpReceived, true);
}
/// @notice Deposit underlying
/// @param underlyingAmount Amount of underlying to deposit
/// @param minLpReceived The minimum amoun of LP to accept from the deposit
/// @param stake Whether or not to stake in the LpTokenStaker
/// @return lpReceived The amount of LP received
function deposit(
uint256 underlyingAmount,
uint256 minLpReceived,
bool stake
) external override returns (uint256) {
return depositFor(msg.sender, underlyingAmount, minLpReceived, stake);
}
function _depositToCurve(
uint256 totalUnderlying_,
uint256[] memory allocatedPerPool,
uint256 underlyingAmount_
) internal {
uint256 depositsRemaining_ = underlyingAmount_;
uint256 totalAfterDeposit_ = totalUnderlying_ + underlyingAmount_;
// NOTE: avoid modifying `allocatedPerPool`
uint256[] memory allocatedPerPoolCopy = allocatedPerPool.copy();
while (depositsRemaining_ > 0) {
(uint256 poolIndex_, uint256 maxDeposit_) = weightManager.getDepositPool(
totalAfterDeposit_,
allocatedPerPoolCopy,
_getMaxDeviation()
);
// account for rounding errors
if (depositsRemaining_ < maxDeposit_ + 1e2) {
maxDeposit_ = depositsRemaining_;
}
address pool_ = weightManager.getPoolAtIndex(poolIndex_);
// Depositing into least balanced pool
uint256 toDeposit_ = _min(depositsRemaining_, maxDeposit_);
address poolAdapter = address(controller.poolAdapterFor(pool_));
poolAdapter.functionDelegateCall(
abi.encodeWithSignature(
"deposit(address,address,uint256)",
pool_,
address(underlying),
toDeposit_
)
);
depositsRemaining_ -= toDeposit_;
allocatedPerPoolCopy[poolIndex_] += toDeposit_;
}
}
/// @notice Get current underlying balance of pool
function totalUnderlying() public view virtual returns (uint256) {
(uint256 totalUnderlying_, , ) = getTotalAndPerPoolUnderlying();
return totalUnderlying_;
}
function updateRewardSpendingApproval(address token, bool approved) external {
require(msg.sender == address(rewardManager), "not authorized");
uint256 amount = approved ? type(uint256).max : 0;
IERC20(token).safeApprove(address(rewardManager), amount);
}
function _exchangeRate(uint256 totalUnderlying_) internal view returns (uint256) {
uint256 lpSupply = lpToken.totalSupply();
if (lpSupply == 0 || totalUnderlying_ == 0) return ScaledMath.ONE;
return totalUnderlying_.divDown(lpSupply);
}
/// @notice Get current exchange rate for the pool's LP token to the underlying
function exchangeRate() public view virtual override returns (uint256) {
return _exchangeRate(totalUnderlying());
}
/// @notice Get current exchange rate for the pool's LP token to USD
/// @dev This is using the cached total underlying value, so is not precisely accurate.
function usdExchangeRate() external view virtual override returns (uint256) {
uint256 underlyingPrice = controller.priceOracle().getUSDPrice(address(underlying));
return _exchangeRate(cachedTotalUnderlying()).mulDown(underlyingPrice);
}
/// @notice Unstake LP Tokens and withdraw underlying
/// @param conicLpAmount Amount of LP tokens to burn
/// @param minUnderlyingReceived Minimum amount of underlying to redeem
/// This should always be set to a reasonable value (e.g. 2%), otherwise
/// the user withdrawing could be forced into paying a withdrawal penalty fee
/// by another user
/// @return uint256 Total underlying withdrawn
function unstakeAndWithdraw(
uint256 conicLpAmount,
uint256 minUnderlyingReceived,
address to
) public override returns (uint256) {
controller.lpTokenStaker().unstakeFrom(conicLpAmount, msg.sender);
return withdraw(conicLpAmount, minUnderlyingReceived, to);
}
function unstakeAndWithdraw(
uint256 conicLpAmount,
uint256 minUnderlyingReceived
) external returns (uint256) {
return unstakeAndWithdraw(conicLpAmount, minUnderlyingReceived, msg.sender);
}
function withdraw(
uint256 conicLpAmount,
uint256 minUnderlyingReceived
) public override returns (uint256) {
return withdraw(conicLpAmount, minUnderlyingReceived, msg.sender);
}
/// @notice Withdraw underlying
/// @param conicLpAmount Amount of LP tokens to burn
/// @param minUnderlyingReceived Minimum amount of underlying to redeem
/// This should always be set to a reasonable value (e.g. 2%), otherwise
/// the user withdrawing could be forced into paying a withdrawal penalty fee
/// by another user
/// @return uint256 Total underlying withdrawn
function withdraw(
uint256 conicLpAmount,
uint256 minUnderlyingReceived,
address to
) public override returns (uint256) {
runSanityChecks();
// Preparing Withdrawals
require(lpToken.balanceOf(msg.sender) >= conicLpAmount, "insufficient balance");
uint256 underlyingBalanceBefore_ = underlying.balanceOf(address(this));
// Processing Withdrawals
(
uint256 totalUnderlying_,
uint256 allocatedUnderlying_,
uint256[] memory allocatedPerPool
) = getTotalAndPerPoolUnderlying();
uint256 underlyingToReceive_ = conicLpAmount.mulDown(_exchangeRate(totalUnderlying_));
{
if (underlyingBalanceBefore_ < underlyingToReceive_) {
uint256 underlyingToWithdraw_ = underlyingToReceive_ - underlyingBalanceBefore_;
_withdrawFromCurve(allocatedUnderlying_, allocatedPerPool, underlyingToWithdraw_);
}
}
// Sending Underlying and burning LP Tokens
uint256 underlyingWithdrawn_ = _min(
underlying.balanceOf(address(this)),
underlyingToReceive_
);
require(underlyingWithdrawn_ >= minUnderlyingReceived, "too much slippage");
lpToken.burn(msg.sender, conicLpAmount, msg.sender);
underlying.safeTransfer(to, underlyingWithdrawn_);
_cachedTotalUnderlying = totalUnderlying_ - underlyingWithdrawn_;
_cacheUpdatedTimestamp = block.timestamp;
// state has already been updated, so no need to worry about re-entrancy
if (to.supportsInterface(type(IWithdrawalProcessor).interfaceId)) {
IWithdrawalProcessor(to).processWithdrawal(msg.sender, underlyingWithdrawn_);
}
emit Withdraw(msg.sender, underlyingWithdrawn_);
return underlyingWithdrawn_;
}
function _withdrawFromCurve(
uint256 totalUnderlying_,
uint256[] memory allocatedPerPool,
uint256 amount_
) internal {
uint256 withdrawalsRemaining_ = amount_;
uint256 totalAfterWithdrawal_ = totalUnderlying_ - amount_;
// NOTE: avoid modifying `allocatedPerPool`
uint256[] memory allocatedPerPoolCopy = allocatedPerPool.copy();
while (withdrawalsRemaining_ > 0) {
(uint256 poolIndex_, uint256 maxWithdrawal_) = weightManager.getWithdrawPool(
totalAfterWithdrawal_,
allocatedPerPoolCopy,
_getMaxDeviation()
);
address pool_ = weightManager.getPoolAtIndex(poolIndex_);
// Withdrawing from least balanced pool
uint256 toWithdraw_ = _min(withdrawalsRemaining_, maxWithdrawal_);
address poolAdapter = address(controller.poolAdapterFor(pool_));
poolAdapter.functionDelegateCall(
abi.encodeWithSignature(
"withdraw(address,address,uint256)",
pool_,
underlying,
toWithdraw_
)
);
withdrawalsRemaining_ -= toWithdraw_;
allocatedPerPoolCopy[poolIndex_] -= toWithdraw_;
}
}
function allPools() external view override returns (address[] memory) {
return weightManager.allPools();
}
function poolsCount() external view override returns (uint256) {
return weightManager.poolsCount();
}
function getPoolAtIndex(uint256 _index) external view override returns (address) {
return weightManager.getPoolAtIndex(_index);
}
function isRegisteredPool(address _pool) external view returns (bool) {
return weightManager.isRegisteredPool(_pool);
}
// Controller and Admin functions
function addPool(address _pool) external override onlyOwner {
weightManager.addPool(_pool);
address booster = controller.convexBooster();
address lpToken_ = controller.poolAdapterFor(_pool).lpToken(_pool);
IERC20(lpToken_).safeApprove(booster, type(uint256).max);
}
function removePool(address _pool) external override onlyOwner {
weightManager.removePool(_pool);
address booster = controller.convexBooster();
address lpToken_ = controller.poolAdapterFor(_pool).lpToken(_pool);
IERC20(lpToken_).safeApprove(booster, 0);
}
function updateWeights(PoolWeight[] memory poolWeights) external onlyController {
runSanityChecks();
weightManager.updateWeights(poolWeights);
(
uint256 totalUnderlying_,
uint256 totalAllocated,
uint256[] memory allocatedPerPool
) = getTotalAndPerPoolUnderlying();
uint256 totalDeviation = weightManager.computeTotalDeviation(
totalUnderlying_,
allocatedPerPool
);
totalDeviationAfterWeightUpdate = totalDeviation;
rebalancingRewardActive =
rebalancingRewardsEnabled &&
!_isBalanced(allocatedPerPool, totalAllocated);
rebalancingRewardsFactor = ScaledMath.ONE;
rebalancingRewardsActivatedAt = uint64(block.timestamp);
// Updating price cache for all pools
// Used for seeing if a pool has depegged
_updatePriceCache();
}
function shutdownPool() external override onlyController {
require(!isShutdown, "pool already shut down");
isShutdown = true;
emit Shutdown();
}
function updateDepegThreshold(uint256 newDepegThreshold_) external onlyOwner {
require(newDepegThreshold_ >= _MIN_DEPEG_THRESHOLD, "invalid depeg threshold");
require(newDepegThreshold_ <= _MAX_DEPEG_THRESHOLD, "invalid depeg threshold");
require(newDepegThreshold_ != depegThreshold, "same as current");
depegThreshold = newDepegThreshold_;
emit DepegThresholdUpdated(newDepegThreshold_);
}
/// @notice Called when an underlying of a Curve Pool has depegged and we want to exit the pool.
/// Will check if a coin has depegged, and will revert if not.
/// Sets the weight of the Curve Pool to 0, and re-enables CNC rewards for deposits.
/// @dev Cannot be called if the underlying of this pool itself has depegged.
/// @param curvePool_ The Curve Pool to handle.
function handleDepeggedCurvePool(address curvePool_) external override {
runSanityChecks();
require(!_isAssetDepegged(address(underlying)), "underlying is depegged");
require(_isPoolDepegged(curvePool_), "pool is not depegged");
weightManager.handleDepeggedCurvePool(curvePool_);
// Updating total deviation
(
uint256 totalUnderlying_,
,
uint256[] memory allocatedPerPool
) = getTotalAndPerPoolUnderlying();
uint256 totalDeviation = weightManager.computeTotalDeviation(
totalUnderlying_,
allocatedPerPool
);
totalDeviationAfterWeightUpdate = totalDeviation;
if (rebalancingRewardsEnabled) {
IPoolAdapter poolAdapter = controller.poolAdapterFor(curvePool_);
uint256 usdValue = poolAdapter.computePoolValueInUSD(address(this), curvePool_);
if (usdValue > _MAX_USD_VALUE_FOR_REMOVING_POOL) {
// if the rebalancing rewards were already active
// we reset the activated at because the rewards factor is now increased
rebalancingRewardsActivatedAt = uint64(block.timestamp);
rebalancingRewardsFactor = emergencyRebalancingRewardsFactor;
rebalancingRewardActive = true;
}
}
emit HandledDepeggedCurvePool(curvePool_);
}
/**
* @notice Allows anyone to set the weight of a Curve pool to 0 if the Convex pool for the
* associated PID has been shut down. This is a very unlikely outcome and the method does
* not reenable rebalancing rewards.
* @param curvePool_ Curve pool for which the Convex PID is invalid (has been shut down)
*/
function handleInvalidConvexPid(address curvePool_) external override returns (uint256) {
runSanityChecks();
uint256 pid = weightManager.handleInvalidConvexPid(curvePool_);
emit HandledInvalidConvexPid(curvePool_, pid);
return pid;
}
function setMaxIdleCurveLpRatio(uint256 maxIdleCurveLpRatio_) external onlyOwner {
require(maxIdleCurveLpRatio != maxIdleCurveLpRatio_, "same as current");
require(maxIdleCurveLpRatio_ <= _IDLE_RATIO_UPPER_BOUND, "ratio exceeds upper bound");
maxIdleCurveLpRatio = maxIdleCurveLpRatio_;
emit NewMaxIdleCurveLpRatio(maxIdleCurveLpRatio_);
}
function setMaxDeviation(uint256 maxDeviation_) external override onlyOwner {
require(maxDeviation != maxDeviation_, "same as current");
require(maxDeviation_ <= _MAX_DEVIATION_UPPER_BOUND, "deviation exceeds upper bound");
maxDeviation = maxDeviation_;
emit MaxDeviationUpdated(maxDeviation_);
}
function getWeight(address curvePool) external view override returns (uint256) {
return weightManager.getWeight(curvePool);
}
function getWeights() external view override returns (PoolWeight[] memory) {
return weightManager.getWeights();
}
function getAllocatedUnderlying() external view override returns (PoolWithAmount[] memory) {
address[] memory pools = weightManager.allPools();
PoolWithAmount[] memory perPoolAllocated = new PoolWithAmount[](pools.length);
(, , uint256[] memory allocated) = getTotalAndPerPoolUnderlying();
for (uint256 i; i < perPoolAllocated.length; i++) {
perPoolAllocated[i] = PoolWithAmount(pools[i], allocated[i]);
}
return perPoolAllocated;
}
function computeTotalDeviation() external view override returns (uint256) {
(
,
uint256 allocatedUnderlying_,
uint256[] memory perPoolUnderlying
) = getTotalAndPerPoolUnderlying();
return weightManager.computeTotalDeviation(allocatedUnderlying_, perPoolUnderlying);
}
function cachedTotalUnderlying() public view virtual override returns (uint256) {
if (block.timestamp > _cacheUpdatedTimestamp + _TOTAL_UNDERLYING_CACHE_EXPIRY) {
return totalUnderlying();
}
return _cachedTotalUnderlying;
}
function getTotalAndPerPoolUnderlying()
public
view
returns (
uint256 totalUnderlying_,
uint256 totalAllocated_,
uint256[] memory perPoolUnderlying_
)
{
uint256 underlyingPrice_ = controller.priceOracle().getUSDPrice(address(underlying));
return _getTotalAndPerPoolUnderlying(underlyingPrice_, IPoolAdapter.PriceMode.Latest);
}
function isBalanced() external view override returns (bool) {
(
,
uint256 allocatedUnderlying_,
uint256[] memory allocatedPerPool_
) = getTotalAndPerPoolUnderlying();
return _isBalanced(allocatedPerPool_, allocatedUnderlying_);
}
function setRebalancingRewardsEnabled(bool enabled) external override onlyOwner {
require(rebalancingRewardsEnabled != enabled, "same as current");
rebalancingRewardsEnabled = enabled;
emit RebalancingRewardsEnabledSet(enabled);
}
function setEmergencyRebalancingRewardFactor(uint256 factor_) external onlyOwner {
require(factor_ >= _MIN_EMERGENCY_REBALANCING_REWARD_FACTOR, "factor below minimum");
require(factor_ <= _MAX_EMERGENCY_REBALANCING_REWARD_FACTOR, "factor above maximum");
require(factor_ != emergencyRebalancingRewardsFactor, "same as current");
emergencyRebalancingRewardsFactor = factor_;
emit EmergencyRebalancingRewardFactorUpdated(factor_);
}
function _updateAdapterCachedPrices() internal {
address[] memory pools = weightManager.allPools();
uint256 poolsLength_ = pools.length;
for (uint256 i; i < poolsLength_; i++) {
address pool_ = pools[i];
IPoolAdapter poolAdapter = controller.poolAdapterFor(pool_);
poolAdapter.updatePriceCache(pool_);
}
}
/**
* @notice Returns several values related to the Omnipools's underlying assets.
* @param underlyingPrice_ Price of the underlying asset in USD
* @return totalUnderlying_ Total underlying value of the Omnipool
* @return totalAllocated_ Total underlying value of the Omnipool that is allocated to Curve pools
* @return perPoolUnderlying_ Array of underlying values of the Omnipool that is allocated to each Curve pool
*/
function _getTotalAndPerPoolUnderlying(
uint256 underlyingPrice_,
IPoolAdapter.PriceMode priceMode
)
internal
view
returns (
uint256 totalUnderlying_,
uint256 totalAllocated_,
uint256[] memory perPoolUnderlying_
)
{
address[] memory pools = weightManager.allPools();
uint256 poolsLength_ = pools.length;
perPoolUnderlying_ = new uint256[](poolsLength_);
for (uint256 i; i < poolsLength_; i++) {
address pool_ = pools[i];
uint256 poolUnderlying_ = controller.poolAdapterFor(pool_).computePoolValueInUnderlying(
address(this),
pool_,
address(underlying),
underlyingPrice_,
priceMode
);
perPoolUnderlying_[i] = poolUnderlying_;
totalAllocated_ += poolUnderlying_;
}
totalUnderlying_ = totalAllocated_ + underlying.balanceOf(address(this));
}
function _handleRebalancingRewards(
address account,
uint256 allocatedBalanceBefore_,
uint256[] memory allocatedPerPoolBefore,
uint256 allocatedBalanceAfter_,
uint256[] memory allocatedPerPoolAfter
) internal {
if (!rebalancingRewardActive) return;
uint256 deviationBefore = weightManager.computeTotalDeviation(
allocatedBalanceBefore_,
allocatedPerPoolBefore
);
uint256 deviationAfter = weightManager.computeTotalDeviation(
allocatedBalanceAfter_,
allocatedPerPoolAfter
);
controller.inflationManager().handleRebalancingRewards(
account,
deviationBefore,
deviationAfter
);
if (_isBalanced(allocatedPerPoolAfter, allocatedBalanceAfter_)) {
rebalancingRewardActive = false;
}
}
function _min(uint256 a, uint256 b) internal pure returns (uint256) {
return a < b ? a : b;
}
function _isBalanced(
uint256[] memory allocatedPerPool_,
uint256 totalAllocated_
) internal view returns (bool) {
return weightManager.isBalanced(allocatedPerPool_, totalAllocated_, maxDeviation);
}
function getAllUnderlyingCoins() public view returns (address[] memory) {
address[] memory pools = weightManager.allPools();
uint256 poolsLength_ = pools.length;
address[] memory underlyings_ = new address[](0);
for (uint256 i; i < poolsLength_; i++) {
address pool_ = pools[i];
address[] memory coins = controller.poolAdapterFor(pool_).getAllUnderlyingCoins(pool_);
underlyings_ = underlyings_.concat(coins);
}
return underlyings_.removeDuplicates();
}
function _isPoolDepegged(address pool_) internal view returns (bool) {
address[] memory coins = controller.poolAdapterFor(pool_).getAllUnderlyingCoins(pool_);
for (uint256 i; i < coins.length; i++) {
address coin = coins[i];
if (_isAssetDepegged(coin)) return true;
}
return false;
}
function runSanityChecks() public virtual {}
function _getMaxDeviation() internal view returns (uint256) {
return rebalancingRewardActive ? 0 : maxDeviation;
}
function _updatePriceCache() internal virtual;
function _isAssetDepegged(address asset_) internal view virtual returns (bool);
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (access/Ownable.sol)
pragma solidity ^0.8.0;
import "Context.sol";
/**
* @dev Contract module which provides a basic access control mechanism, where
* there is an account (an owner) that can be granted exclusive access to
* specific functions.
*
* By default, the owner account will be the one that deploys the contract. This
* can later be changed with {transferOwnership}.
*
* This module is used through inheritance. It will make available the modifier
* `onlyOwner`, which can be applied to your functions to restrict their use to
* the owner.
*/
abstract contract Ownable is Context {
address private _owner;
event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
/**
* @dev Initializes the contract setting the deployer as the initial owner.
*/
constructor() {
_transferOwnership(_msgSender());
}
/**
* @dev Throws if called by any account other than the owner.
*/
modifier onlyOwner() {
_checkOwner();
_;
}
/**
* @dev Returns the address of the current owner.
*/
function owner() public view virtual returns (address) {
return _owner;
}
/**
* @dev Throws if the sender is not the owner.
*/
function _checkOwner() internal view virtual {
require(owner() == _msgSender(), "Ownable: caller is not the owner");
}
/**
* @dev Leaves the contract without owner. It will not be possible to call
* `onlyOwner` functions. Can only be called by the current owner.
*
* NOTE: Renouncing ownership will leave the contract without an owner,
* thereby disabling any functionality that is only available to the owner.
*/
function renounceOwnership() public virtual onlyOwner {
_transferOwnership(address(0));
}
/**
* @dev Transfers ownership of the contract to a new account (`newOwner`).
* Can only be called by the current owner.
*/
function transferOwnership(address newOwner) public virtual onlyOwner {
require(newOwner != address(0), "Ownable: new owner is the zero address");
_transferOwnership(newOwner);
}
/**
* @dev Transfers ownership of the contract to a new account (`newOwner`).
* Internal function without access restriction.
*/
function _transferOwnership(address newOwner) internal virtual {
address oldOwner = _owner;
_owner = newOwner;
emit OwnershipTransferred(oldOwner, newOwner);
}
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/Context.sol)
pragma solidity ^0.8.0;
/**
* @dev Provides information about the current execution context, including the
* sender of the transaction and its data. While these are generally available
* via msg.sender and msg.data, they should not be accessed in such a direct
* manner, since when dealing with meta-transactions the account sending and
* paying for execution may not be the actual sender (as far as an application
* is concerned).
*
* This contract is only required for intermediate, library-like contracts.
*/
abstract contract Context {
function _msgSender() internal view virtual returns (address) {
return msg.sender;
}
function _msgData() internal view virtual returns (bytes calldata) {
return msg.data;
}
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (token/ERC20/ERC20.sol)
pragma solidity ^0.8.0;
import "IERC20.sol";
import "IERC20Metadata.sol";
import "Context.sol";
/**
* @dev Implementation of the {IERC20} interface.
*
* This implementation is agnostic to the way tokens are created. This means
* that a supply mechanism has to be added in a derived contract using {_mint}.
* For a generic mechanism see {ERC20PresetMinterPauser}.
*
* TIP: For a detailed writeup see our guide
* https://forum.openzeppelin.com/t/how-to-implement-erc20-supply-mechanisms/226[How
* to implement supply mechanisms].
*
* The default value of {decimals} is 18. To change this, you should override
* this function so it returns a different value.
*
* We have followed general OpenZeppelin Contracts guidelines: functions revert
* instead returning `false` on failure. This behavior is nonetheless
* conventional and does not conflict with the expectations of ERC20
* applications.
*
* Additionally, an {Approval} event is emitted on calls to {transferFrom}.
* This allows applications to reconstruct the allowance for all accounts just
* by listening to said events. Other implementations of the EIP may not emit
* these events, as it isn't required by the specification.
*
* Finally, the non-standard {decreaseAllowance} and {increaseAllowance}
* functions have been added to mitigate the well-known issues around setting
* allowances. See {IERC20-approve}.
*/
contract ERC20 is Context, IERC20, IERC20Metadata {
mapping(address => uint256) private _balances;
mapping(address => mapping(address => uint256)) private _allowances;
uint256 private _totalSupply;
string private _name;
string private _symbol;
/**
* @dev Sets the values for {name} and {symbol}.
*
* All two of these values are immutable: they can only be set once during
* construction.
*/
constructor(string memory name_, string memory symbol_) {
_name = name_;
_symbol = symbol_;
}
/**
* @dev Returns the name of the token.
*/
function name() public view virtual override returns (string memory) {
return _name;
}
/**
* @dev Returns the symbol of the token, usually a shorter version of the
* name.
*/
function symbol() public view virtual override returns (string memory) {
return _symbol;
}
/**
* @dev Returns the number of decimals used to get its user representation.
* For example, if `decimals` equals `2`, a balance of `505` tokens should
* be displayed to a user as `5.05` (`505 / 10 ** 2`).
*
* Tokens usually opt for a value of 18, imitating the relationship between
* Ether and Wei. This is the default value returned by this function, unless
* it's overridden.
*
* NOTE: This information is only used for _display_ purposes: it in
* no way affects any of the arithmetic of the contract, including
* {IERC20-balanceOf} and {IERC20-transfer}.
*/
function decimals() public view virtual override returns (uint8) {
return 18;
}
/**
* @dev See {IERC20-totalSupply}.
*/
function totalSupply() public view virtual override returns (uint256) {
return _totalSupply;
}
/**
* @dev See {IERC20-balanceOf}.
*/
function balanceOf(address account) public view virtual override returns (uint256) {
return _balances[account];
}
/**
* @dev See {IERC20-transfer}.
*
* Requirements:
*
* - `to` cannot be the zero address.
* - the caller must have a balance of at least `amount`.
*/
function transfer(address to, uint256 amount) public virtual override returns (bool) {
address owner = _msgSender();
_transfer(owner, to, amount);
return true;
}
/**
* @dev See {IERC20-allowance}.
*/
function allowance(address owner, address spender) public view virtual override returns (uint256) {
return _allowances[owner][spender];
}
/**
* @dev See {IERC20-approve}.
*
* NOTE: If `amount` is the maximum `uint256`, the allowance is not updated on
* `transferFrom`. This is semantically equivalent to an infinite approval.
*
* Requirements:
*
* - `spender` cannot be the zero address.
*/
function approve(address spender, uint256 amount) public virtual override returns (bool) {
address owner = _msgSender();
_approve(owner, spender, amount);
return true;
}
/**
* @dev See {IERC20-transferFrom}.
*
* Emits an {Approval} event indicating the updated allowance. This is not
* required by the EIP. See the note at the beginning of {ERC20}.
*
* NOTE: Does not update the allowance if the current allowance
* is the maximum `uint256`.
*
* Requirements:
*
* - `from` and `to` cannot be the zero address.
* - `from` must have a balance of at least `amount`.
* - the caller must have allowance for ``from``'s tokens of at least
* `amount`.
*/
function transferFrom(address from, address to, uint256 amount) public virtual override returns (bool) {
address spender = _msgSender();
_spendAllowance(from, spender, amount);
_transfer(from, to, amount);
return true;
}
/**
* @dev Atomically increases the allowance granted to `spender` by the caller.
*
* This is an alternative to {approve} that can be used as a mitigation for
* problems described in {IERC20-approve}.
*
* Emits an {Approval} event indicating the updated allowance.
*
* Requirements:
*
* - `spender` cannot be the zero address.
*/
function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {
address owner = _msgSender();
_approve(owner, spender, allowance(owner, spender) + addedValue);
return true;
}
/**
* @dev Atomically decreases the allowance granted to `spender` by the caller.
*
* This is an alternative to {approve} that can be used as a mitigation for
* problems described in {IERC20-approve}.
*
* Emits an {Approval} event indicating the updated allowance.
*
* Requirements:
*
* - `spender` cannot be the zero address.
* - `spender` must have allowance for the caller of at least
* `subtractedValue`.
*/
function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {
address owner = _msgSender();
uint256 currentAllowance = allowance(owner, spender);
require(currentAllowance >= subtractedValue, "ERC20: decreased allowance below zero");
unchecked {
_approve(owner, spender, currentAllowance - subtractedValue);
}
return true;
}
/**
* @dev Moves `amount` of tokens from `from` to `to`.
*
* This internal function is equivalent to {transfer}, and can be used to
* e.g. implement automatic token fees, slashing mechanisms, etc.
*
* Emits a {Transfer} event.
*
* Requirements:
*
* - `from` cannot be the zero address.
* - `to` cannot be the zero address.
* - `from` must have a balance of at least `amount`.
*/
function _transfer(address from, address to, uint256 amount) internal virtual {
require(from != address(0), "ERC20: transfer from the zero address");
require(to != address(0), "ERC20: transfer to the zero address");
_beforeTokenTransfer(from, to, amount);
uint256 fromBalance = _balances[from];
require(fromBalance >= amount, "ERC20: transfer amount exceeds balance");
unchecked {
_balances[from] = fromBalance - amount;
// Overflow not possible: the sum of all balances is capped by totalSupply, and the sum is preserved by
// decrementing then incrementing.
_balances[to] += amount;
}
emit Transfer(from, to, amount);
_afterTokenTransfer(from, to, amount);
}
/** @dev Creates `amount` tokens and assigns them to `account`, increasing
* the total supply.
*
* Emits a {Transfer} event with `from` set to the zero address.
*
* Requirements:
*
* - `account` cannot be the zero address.
*/
function _mint(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: mint to the zero address");
_beforeTokenTransfer(address(0), account, amount);
_totalSupply += amount;
unchecked {
// Overflow not possible: balance + amount is at most totalSupply + amount, which is checked above.
_balances[account] += amount;
}
emit Transfer(address(0), account, amount);
_afterTokenTransfer(address(0), account, amount);
}
/**
* @dev Destroys `amount` tokens from `account`, reducing the
* total supply.
*
* Emits a {Transfer} event with `to` set to the zero address.
*
* Requirements:
*
* - `account` cannot be the zero address.
* - `account` must have at least `amount` tokens.
*/
function _burn(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: burn from the zero address");
_beforeTokenTransfer(account, address(0), amount);
uint256 accountBalance = _balances[account];
require(accountBalance >= amount, "ERC20: burn amount exceeds balance");
unchecked {
_balances[account] = accountBalance - amount;
// Overflow not possible: amount <= accountBalance <= totalSupply.
_totalSupply -= amount;
}
emit Transfer(account, address(0), amount);
_afterTokenTransfer(account, address(0), amount);
}
/**
* @dev Sets `amount` as the allowance of `spender` over the `owner` s tokens.
*
* This internal function is equivalent to `approve`, and can be used to
* e.g. set automatic allowances for certain subsystems, etc.
*
* Emits an {Approval} event.
*
* Requirements:
*
* - `owner` cannot be the zero address.
* - `spender` cannot be the zero address.
*/
function _approve(address owner, address spender, uint256 amount) internal virtual {
require(owner != address(0), "ERC20: approve from the zero address");
require(spender != address(0), "ERC20: approve to the zero address");
_allowances[owner][spender] = amount;
emit Approval(owner, spender, amount);
}
/**
* @dev Updates `owner` s allowance for `spender` based on spent `amount`.
*
* Does not update the allowance amount in case of infinite allowance.
* Revert if not enough allowance is available.
*
* Might emit an {Approval} event.
*/
function _spendAllowance(address owner, address spender, uint256 amount) internal virtual {
uint256 currentAllowance = allowance(owner, spender);
if (currentAllowance != type(uint256).max) {
require(currentAllowance >= amount, "ERC20: insufficient allowance");
unchecked {
_approve(owner, spender, currentAllowance - amount);
}
}
}
/**
* @dev Hook that is called before any transfer of tokens. This includes
* minting and burning.
*
* Calling conditions:
*
* - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens
* will be transferred to `to`.
* - when `from` is zero, `amount` tokens will be minted for `to`.
* - when `to` is zero, `amount` of ``from``'s tokens will be burned.
* - `from` and `to` are never both zero.
*
* To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
*/
function _beforeTokenTransfer(address from, address to, uint256 amount) internal virtual {}
/**
* @dev Hook that is called after any transfer of tokens. This includes
* minting and burning.
*
* Calling conditions:
*
* - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens
* has been transferred to `to`.
* - when `from` is zero, `amount` tokens have been minted for `to`.
* - when `to` is zero, `amount` of ``from``'s tokens have been burned.
* - `from` and `to` are never both zero.
*
* To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
*/
function _afterTokenTransfer(address from, address to, uint256 amount) internal virtual {}
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (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/IERC20Metadata.sol)
pragma solidity ^0.8.0;
import "IERC20.sol";
/**
* @dev Interface for the optional metadata functions from the ERC20 standard.
*
* _Available since v4.1._
*/
interface IERC20Metadata is IERC20 {
/**
* @dev Returns the name of the token.
*/
function name() external view returns (string memory);
/**
* @dev Returns the symbol of the token.
*/
function symbol() external view returns (string memory);
/**
* @dev Returns the decimals places of the token.
*/
function decimals() external view returns (uint8);
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (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
*
* Furthermore, `isContract` will also return true if the target contract within
* the same transaction is already scheduled for destruction by `SELFDESTRUCT`,
* which only has an effect at the end of a transaction.
* ====
*
* [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://consensys.net/diligence/blog/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/v0.8.0/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 functionCallWithValue(target, data, 0, "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");
(bool success, bytes memory returndata) = target.call{value: value}(data);
return verifyCallResultFromTarget(target, 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) {
(bool success, bytes memory returndata) = target.staticcall(data);
return verifyCallResultFromTarget(target, 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) {
(bool success, bytes memory returndata) = target.delegatecall(data);
return verifyCallResultFromTarget(target, success, returndata, errorMessage);
}
/**
* @dev Tool to verify that a low level call to smart-contract was successful, and revert (either by bubbling
* the revert reason or using the provided one) in case of unsuccessful call or if target was not a contract.
*
* _Available since v4.8._
*/
function verifyCallResultFromTarget(
address target,
bool success,
bytes memory returndata,
string memory errorMessage
) internal view returns (bytes memory) {
if (success) {
if (returndata.length == 0) {
// only check isContract if the call was successful and the return data is empty
// otherwise we already know that it was a contract
require(isContract(target), "Address: call to non-contract");
}
return returndata;
} else {
_revert(returndata, errorMessage);
}
}
/**
* @dev Tool to verify that a low level call was successful, and revert if it wasn't, either by bubbling the
* revert reason or 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 {
_revert(returndata, errorMessage);
}
}
function _revert(bytes memory returndata, string memory errorMessage) private pure {
// 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);
}
}
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (utils/structs/EnumerableSet.sol)
// This file was procedurally generated from scripts/generate/templates/EnumerableSet.js.
pragma solidity ^0.8.0;
/**
* @dev Library for managing
* https://en.wikipedia.org/wiki/Set_(abstract_data_type)[sets] of primitive
* types.
*
* Sets have the following properties:
*
* - Elements are added, removed, and checked for existence in constant time
* (O(1)).
* - Elements are enumerated in O(n). No guarantees are made on the ordering.
*
* ```solidity
* contract Example {
* // Add the library methods
* using EnumerableSet for EnumerableSet.AddressSet;
*
* // Declare a set state variable
* EnumerableSet.AddressSet private mySet;
* }
* ```
*
* As of v3.3.0, sets of type `bytes32` (`Bytes32Set`), `address` (`AddressSet`)
* and `uint256` (`UintSet`) are supported.
*
* [WARNING]
* ====
* Trying to delete such a structure from storage will likely result in data corruption, rendering the structure
* unusable.
* See https://github.com/ethereum/solidity/pull/11843[ethereum/solidity#11843] for more info.
*
* In order to clean an EnumerableSet, you can either remove all elements one by one or create a fresh instance using an
* array of EnumerableSet.
* ====
*/
library EnumerableSet {
// To implement this library for multiple types with as little code
// repetition as possible, we write it in terms of a generic Set type with
// bytes32 values.
// The Set implementation uses private functions, and user-facing
// implementations (such as AddressSet) are just wrappers around the
// underlying Set.
// This means that we can only create new EnumerableSets for types that fit
// in bytes32.
struct Set {
// Storage of set values
bytes32[] _values;
// Position of the value in the `values` array, plus 1 because index 0
// means a value is not in the set.
mapping(bytes32 => uint256) _indexes;
}
/**
* @dev Add a value to a set. O(1).
*
* Returns true if the value was added to the set, that is if it was not
* already present.
*/
function _add(Set storage set, bytes32 value) private returns (bool) {
if (!_contains(set, value)) {
set._values.push(value);
// The value is stored at length-1, but we add 1 to all indexes
// and use 0 as a sentinel value
set._indexes[value] = set._values.length;
return true;
} else {
return false;
}
}
/**
* @dev Removes a value from a set. O(1).
*
* Returns true if the value was removed from the set, that is if it was
* present.
*/
function _remove(Set storage set, bytes32 value) private returns (bool) {
// We read and store the value's index to prevent multiple reads from the same storage slot
uint256 valueIndex = set._indexes[value];
if (valueIndex != 0) {
// Equivalent to contains(set, value)
// To delete an element from the _values array in O(1), we swap the element to delete with the last one in
// the array, and then remove the last element (sometimes called as 'swap and pop').
// This modifies the order of the array, as noted in {at}.
uint256 toDeleteIndex = valueIndex - 1;
uint256 lastIndex = set._values.length - 1;
if (lastIndex != toDeleteIndex) {
bytes32 lastValue = set._values[lastIndex];
// Move the last value to the index where the value to delete is
set._values[toDeleteIndex] = lastValue;
// Update the index for the moved value
set._indexes[lastValue] = valueIndex; // Replace lastValue's index to valueIndex
}
// Delete the slot where the moved value was stored
set._values.pop();
// Delete the index for the deleted slot
delete set._indexes[value];
return true;
} else {
return false;
}
}
/**
* @dev Returns true if the value is in the set. O(1).
*/
function _contains(Set storage set, bytes32 value) private view returns (bool) {
return set._indexes[value] != 0;
}
/**
* @dev Returns the number of values on the set. O(1).
*/
function _length(Set storage set) private view returns (uint256) {
return set._values.length;
}
/**
* @dev Returns the value stored at position `index` in the set. O(1).
*
* Note that there are no guarantees on the ordering of values inside the
* array, and it may change when more values are added or removed.
*
* Requirements:
*
* - `index` must be strictly less than {length}.
*/
function _at(Set storage set, uint256 index) private view returns (bytes32) {
return set._values[index];
}
/**
* @dev Return the entire set in an array
*
* WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed
* to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that
* this function has an unbounded cost, and using it as part of a state-changing function may render the function
* uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block.
*/
function _values(Set storage set) private view returns (bytes32[] memory) {
return set._values;
}
// Bytes32Set
struct Bytes32Set {
Set _inner;
}
/**
* @dev Add a value to a set. O(1).
*
* Returns true if the value was added to the set, that is if it was not
* already present.
*/
function add(Bytes32Set storage set, bytes32 value) internal returns (bool) {
return _add(set._inner, value);
}
/**
* @dev Removes a value from a set. O(1).
*
* Returns true if the value was removed from the set, that is if it was
* present.
*/
function remove(Bytes32Set storage set, bytes32 value) internal returns (bool) {
return _remove(set._inner, value);
}
/**
* @dev Returns true if the value is in the set. O(1).
*/
function contains(Bytes32Set storage set, bytes32 value) internal view returns (bool) {
return _contains(set._inner, value);
}
/**
* @dev Returns the number of values in the set. O(1).
*/
function length(Bytes32Set storage set) internal view returns (uint256) {
return _length(set._inner);
}
/**
* @dev Returns the value stored at position `index` in the set. O(1).
*
* Note that there are no guarantees on the ordering of values inside the
* array, and it may change when more values are added or removed.
*
* Requirements:
*
* - `index` must be strictly less than {length}.
*/
function at(Bytes32Set storage set, uint256 index) internal view returns (bytes32) {
return _at(set._inner, index);
}
/**
* @dev Return the entire set in an array
*
* WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed
* to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that
* this function has an unbounded cost, and using it as part of a state-changing function may render the function
* uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block.
*/
function values(Bytes32Set storage set) internal view returns (bytes32[] memory) {
bytes32[] memory store = _values(set._inner);
bytes32[] memory result;
/// @solidity memory-safe-assembly
assembly {
result := store
}
return result;
}
// AddressSet
struct AddressSet {
Set _inner;
}
/**
* @dev Add a value to a set. O(1).
*
* Returns true if the value was added to the set, that is if it was not
* already present.
*/
function add(AddressSet storage set, address value) internal returns (bool) {
return _add(set._inner, bytes32(uint256(uint160(value))));
}
/**
* @dev Removes a value from a set. O(1).
*
* Returns true if the value was removed from the set, that is if it was
* present.
*/
function remove(AddressSet storage set, address value) internal returns (bool) {
return _remove(set._inner, bytes32(uint256(uint160(value))));
}
/**
* @dev Returns true if the value is in the set. O(1).
*/
function contains(AddressSet storage set, address value) internal view returns (bool) {
return _contains(set._inner, bytes32(uint256(uint160(value))));
}
/**
* @dev Returns the number of values in the set. O(1).
*/
function length(AddressSet storage set) internal view returns (uint256) {
return _length(set._inner);
}
/**
* @dev Returns the value stored at position `index` in the set. O(1).
*
* Note that there are no guarantees on the ordering of values inside the
* array, and it may change when more values are added or removed.
*
* Requirements:
*
* - `index` must be strictly less than {length}.
*/
function at(AddressSet storage set, uint256 index) internal view returns (address) {
return address(uint160(uint256(_at(set._inner, index))));
}
/**
* @dev Return the entire set in an array
*
* WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed
* to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that
* this function has an unbounded cost, and using it as part of a state-changing function may render the function
* uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block.
*/
function values(AddressSet storage set) internal view returns (address[] memory) {
bytes32[] memory store = _values(set._inner);
address[] memory result;
/// @solidity memory-safe-assembly
assembly {
result := store
}
return result;
}
// UintSet
struct UintSet {
Set _inner;
}
/**
* @dev Add a value to a set. O(1).
*
* Returns true if the value was added to the set, that is if it was not
* already present.
*/
function add(UintSet storage set, uint256 value) internal returns (bool) {
return _add(set._inner, bytes32(value));
}
/**
* @dev Removes a value from a set. O(1).
*
* Returns true if the value was removed from the set, that is if it was
* present.
*/
function remove(UintSet storage set, uint256 value) internal returns (bool) {
return _remove(set._inner, bytes32(value));
}
/**
* @dev Returns true if the value is in the set. O(1).
*/
function contains(UintSet storage set, uint256 value) internal view returns (bool) {
return _contains(set._inner, bytes32(value));
}
/**
* @dev Returns the number of values in the set. O(1).
*/
function length(UintSet storage set) internal view returns (uint256) {
return _length(set._inner);
}
/**
* @dev Returns the value stored at position `index` in the set. O(1).
*
* Note that there are no guarantees on the ordering of values inside the
* array, and it may change when more values are added or removed.
*
* Requirements:
*
* - `index` must be strictly less than {length}.
*/
function at(UintSet storage set, uint256 index) internal view returns (uint256) {
return uint256(_at(set._inner, index));
}
/**
* @dev Return the entire set in an array
*
* WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed
* to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that
* this function has an unbounded cost, and using it as part of a state-changing function may render the function
* uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block.
*/
function values(UintSet storage set) internal view returns (uint256[] memory) {
bytes32[] memory store = _values(set._inner);
uint256[] memory result;
/// @solidity memory-safe-assembly
assembly {
result := store
}
return result;
}
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (utils/structs/EnumerableMap.sol)
// This file was procedurally generated from scripts/generate/templates/EnumerableMap.js.
pragma solidity ^0.8.0;
import "EnumerableSet.sol";
/**
* @dev Library for managing an enumerable variant of Solidity's
* https://solidity.readthedocs.io/en/latest/types.html#mapping-types[`mapping`]
* type.
*
* Maps have the following properties:
*
* - Entries are added, removed, and checked for existence in constant time
* (O(1)).
* - Entries are enumerated in O(n). No guarantees are made on the ordering.
*
* ```solidity
* contract Example {
* // Add the library methods
* using EnumerableMap for EnumerableMap.UintToAddressMap;
*
* // Declare a set state variable
* EnumerableMap.UintToAddressMap private myMap;
* }
* ```
*
* The following map types are supported:
*
* - `uint256 -> address` (`UintToAddressMap`) since v3.0.0
* - `address -> uint256` (`AddressToUintMap`) since v4.6.0
* - `bytes32 -> bytes32` (`Bytes32ToBytes32Map`) since v4.6.0
* - `uint256 -> uint256` (`UintToUintMap`) since v4.7.0
* - `bytes32 -> uint256` (`Bytes32ToUintMap`) since v4.7.0
*
* [WARNING]
* ====
* Trying to delete such a structure from storage will likely result in data corruption, rendering the structure
* unusable.
* See https://github.com/ethereum/solidity/pull/11843[ethereum/solidity#11843] for more info.
*
* In order to clean an EnumerableMap, you can either remove all elements one by one or create a fresh instance using an
* array of EnumerableMap.
* ====
*/
library EnumerableMap {
using EnumerableSet for EnumerableSet.Bytes32Set;
// To implement this library for multiple types with as little code
// repetition as possible, we write it in terms of a generic Map type with
// bytes32 keys and values.
// The Map implementation uses private functions, and user-facing
// implementations (such as Uint256ToAddressMap) are just wrappers around
// the underlying Map.
// This means that we can only create new EnumerableMaps for types that fit
// in bytes32.
struct Bytes32ToBytes32Map {
// Storage of keys
EnumerableSet.Bytes32Set _keys;
mapping(bytes32 => bytes32) _values;
}
/**
* @dev Adds a key-value pair to a map, or updates the value for an existing
* key. O(1).
*
* Returns true if the key was added to the map, that is if it was not
* already present.
*/
function set(Bytes32ToBytes32Map storage map, bytes32 key, bytes32 value) internal returns (bool) {
map._values[key] = value;
return map._keys.add(key);
}
/**
* @dev Removes a key-value pair from a map. O(1).
*
* Returns true if the key was removed from the map, that is if it was present.
*/
function remove(Bytes32ToBytes32Map storage map, bytes32 key) internal returns (bool) {
delete map._values[key];
return map._keys.remove(key);
}
/**
* @dev Returns true if the key is in the map. O(1).
*/
function contains(Bytes32ToBytes32Map storage map, bytes32 key) internal view returns (bool) {
return map._keys.contains(key);
}
/**
* @dev Returns the number of key-value pairs in the map. O(1).
*/
function length(Bytes32ToBytes32Map storage map) internal view returns (uint256) {
return map._keys.length();
}
/**
* @dev Returns the key-value pair stored at position `index` in the map. O(1).
*
* Note that there are no guarantees on the ordering of entries inside the
* array, and it may change when more entries are added or removed.
*
* Requirements:
*
* - `index` must be strictly less than {length}.
*/
function at(Bytes32ToBytes32Map storage map, uint256 index) internal view returns (bytes32, bytes32) {
bytes32 key = map._keys.at(index);
return (key, map._values[key]);
}
/**
* @dev Tries to returns the value associated with `key`. O(1).
* Does not revert if `key` is not in the map.
*/
function tryGet(Bytes32ToBytes32Map storage map, bytes32 key) internal view returns (bool, bytes32) {
bytes32 value = map._values[key];
if (value == bytes32(0)) {
return (contains(map, key), bytes32(0));
} else {
return (true, value);
}
}
/**
* @dev Returns the value associated with `key`. O(1).
*
* Requirements:
*
* - `key` must be in the map.
*/
function get(Bytes32ToBytes32Map storage map, bytes32 key) internal view returns (bytes32) {
bytes32 value = map._values[key];
require(value != 0 || contains(map, key), "EnumerableMap: nonexistent key");
return value;
}
/**
* @dev Same as {get}, with a custom error message when `key` is not in the map.
*
* CAUTION: This function is deprecated because it requires allocating memory for the error
* message unnecessarily. For custom revert reasons use {tryGet}.
*/
function get(
Bytes32ToBytes32Map storage map,
bytes32 key,
string memory errorMessage
) internal view returns (bytes32) {
bytes32 value = map._values[key];
require(value != 0 || contains(map, key), errorMessage);
return value;
}
/**
* @dev Return the an array containing all the keys
*
* WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed
* to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that
* this function has an unbounded cost, and using it as part of a state-changing function may render the function
* uncallable if the map grows to a point where copying to memory consumes too much gas to fit in a block.
*/
function keys(Bytes32ToBytes32Map storage map) internal view returns (bytes32[] memory) {
return map._keys.values();
}
// UintToUintMap
struct UintToUintMap {
Bytes32ToBytes32Map _inner;
}
/**
* @dev Adds a key-value pair to a map, or updates the value for an existing
* key. O(1).
*
* Returns true if the key was added to the map, that is if it was not
* already present.
*/
function set(UintToUintMap storage map, uint256 key, uint256 value) internal returns (bool) {
return set(map._inner, bytes32(key), bytes32(value));
}
/**
* @dev Removes a value from a map. O(1).
*
* Returns true if the key was removed from the map, that is if it was present.
*/
function remove(UintToUintMap storage map, uint256 key) internal returns (bool) {
return remove(map._inner, bytes32(key));
}
/**
* @dev Returns true if the key is in the map. O(1).
*/
function contains(UintToUintMap storage map, uint256 key) internal view returns (bool) {
return contains(map._inner, bytes32(key));
}
/**
* @dev Returns the number of elements in the map. O(1).
*/
function length(UintToUintMap storage map) internal view returns (uint256) {
return length(map._inner);
}
/**
* @dev Returns the element stored at position `index` in the map. O(1).
* Note that there are no guarantees on the ordering of values inside the
* array, and it may change when more values are added or removed.
*
* Requirements:
*
* - `index` must be strictly less than {length}.
*/
function at(UintToUintMap storage map, uint256 index) internal view returns (uint256, uint256) {
(bytes32 key, bytes32 value) = at(map._inner, index);
return (uint256(key), uint256(value));
}
/**
* @dev Tries to returns the value associated with `key`. O(1).
* Does not revert if `key` is not in the map.
*/
function tryGet(UintToUintMap storage map, uint256 key) internal view returns (bool, uint256) {
(bool success, bytes32 value) = tryGet(map._inner, bytes32(key));
return (success, uint256(value));
}
/**
* @dev Returns the value associated with `key`. O(1).
*
* Requirements:
*
* - `key` must be in the map.
*/
function get(UintToUintMap storage map, uint256 key) internal view returns (uint256) {
return uint256(get(map._inner, bytes32(key)));
}
/**
* @dev Same as {get}, with a custom error message when `key` is not in the map.
*
* CAUTION: This function is deprecated because it requires allocating memory for the error
* message unnecessarily. For custom revert reasons use {tryGet}.
*/
function get(UintToUintMap storage map, uint256 key, string memory errorMessage) internal view returns (uint256) {
return uint256(get(map._inner, bytes32(key), errorMessage));
}
/**
* @dev Return the an array containing all the keys
*
* WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed
* to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that
* this function has an unbounded cost, and using it as part of a state-changing function may render the function
* uncallable if the map grows to a point where copying to memory consumes too much gas to fit in a block.
*/
function keys(UintToUintMap storage map) internal view returns (uint256[] memory) {
bytes32[] memory store = keys(map._inner);
uint256[] memory result;
/// @solidity memory-safe-assembly
assembly {
result := store
}
return result;
}
// UintToAddressMap
struct UintToAddressMap {
Bytes32ToBytes32Map _inner;
}
/**
* @dev Adds a key-value pair to a map, or updates the value for an existing
* key. O(1).
*
* Returns true if the key was added to the map, that is if it was not
* already present.
*/
function set(UintToAddressMap storage map, uint256 key, address value) internal returns (bool) {
return set(map._inner, bytes32(key), bytes32(uint256(uint160(value))));
}
/**
* @dev Removes a value from a map. O(1).
*
* Returns true if the key was removed from the map, that is if it was present.
*/
function remove(UintToAddressMap storage map, uint256 key) internal returns (bool) {
return remove(map._inner, bytes32(key));
}
/**
* @dev Returns true if the key is in the map. O(1).
*/
function contains(UintToAddressMap storage map, uint256 key) internal view returns (bool) {
return contains(map._inner, bytes32(key));
}
/**
* @dev Returns the number of elements in the map. O(1).
*/
function length(UintToAddressMap storage map) internal view returns (uint256) {
return length(map._inner);
}
/**
* @dev Returns the element stored at position `index` in the map. O(1).
* Note that there are no guarantees on the ordering of values inside the
* array, and it may change when more values are added or removed.
*
* Requirements:
*
* - `index` must be strictly less than {length}.
*/
function at(UintToAddressMap storage map, uint256 index) internal view returns (uint256, address) {
(bytes32 key, bytes32 value) = at(map._inner, index);
return (uint256(key), address(uint160(uint256(value))));
}
/**
* @dev Tries to returns the value associated with `key`. O(1).
* Does not revert if `key` is not in the map.
*/
function tryGet(UintToAddressMap storage map, uint256 key) internal view returns (bool, address) {
(bool success, bytes32 value) = tryGet(map._inner, bytes32(key));
return (success, address(uint160(uint256(value))));
}
/**
* @dev Returns the value associated with `key`. O(1).
*
* Requirements:
*
* - `key` must be in the map.
*/
function get(UintToAddressMap storage map, uint256 key) internal view returns (address) {
return address(uint160(uint256(get(map._inner, bytes32(key)))));
}
/**
* @dev Same as {get}, with a custom error message when `key` is not in the map.
*
* CAUTION: This function is deprecated because it requires allocating memory for the error
* message unnecessarily. For custom revert reasons use {tryGet}.
*/
function get(
UintToAddressMap storage map,
uint256 key,
string memory errorMessage
) internal view returns (address) {
return address(uint160(uint256(get(map._inner, bytes32(key), errorMessage))));
}
/**
* @dev Return the an array containing all the keys
*
* WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed
* to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that
* this function has an unbounded cost, and using it as part of a state-changing function may render the function
* uncallable if the map grows to a point where copying to memory consumes too much gas to fit in a block.
*/
function keys(UintToAddressMap storage map) internal view returns (uint256[] memory) {
bytes32[] memory store = keys(map._inner);
uint256[] memory result;
/// @solidity memory-safe-assembly
assembly {
result := store
}
return result;
}
// AddressToUintMap
struct AddressToUintMap {
Bytes32ToBytes32Map _inner;
}
/**
* @dev Adds a key-value pair to a map, or updates the value for an existing
* key. O(1).
*
* Returns true if the key was added to the map, that is if it was not
* already present.
*/
function set(AddressToUintMap storage map, address key, uint256 value) internal returns (bool) {
return set(map._inner, bytes32(uint256(uint160(key))), bytes32(value));
}
/**
* @dev Removes a value from a map. O(1).
*
* Returns true if the key was removed from the map, that is if it was present.
*/
function remove(AddressToUintMap storage map, address key) internal returns (bool) {
return remove(map._inner, bytes32(uint256(uint160(key))));
}
/**
* @dev Returns true if the key is in the map. O(1).
*/
function contains(AddressToUintMap storage map, address key) internal view returns (bool) {
return contains(map._inner, bytes32(uint256(uint160(key))));
}
/**
* @dev Returns the number of elements in the map. O(1).
*/
function length(AddressToUintMap storage map) internal view returns (uint256) {
return length(map._inner);
}
/**
* @dev Returns the element stored at position `index` in the map. O(1).
* Note that there are no guarantees on the ordering of values inside the
* array, and it may change when more values are added or removed.
*
* Requirements:
*
* - `index` must be strictly less than {length}.
*/
function at(AddressToUintMap storage map, uint256 index) internal view returns (address, uint256) {
(bytes32 key, bytes32 value) = at(map._inner, index);
return (address(uint160(uint256(key))), uint256(value));
}
/**
* @dev Tries to returns the value associated with `key`. O(1).
* Does not revert if `key` is not in the map.
*/
function tryGet(AddressToUintMap storage map, address key) internal view returns (bool, uint256) {
(bool success, bytes32 value) = tryGet(map._inner, bytes32(uint256(uint160(key))));
return (success, uint256(value));
}
/**
* @dev Returns the value associated with `key`. O(1).
*
* Requirements:
*
* - `key` must be in the map.
*/
function get(AddressToUintMap storage map, address key) internal view returns (uint256) {
return uint256(get(map._inner, bytes32(uint256(uint160(key)))));
}
/**
* @dev Same as {get}, with a custom error message when `key` is not in the map.
*
* CAUTION: This function is deprecated because it requires allocating memory for the error
* message unnecessarily. For custom revert reasons use {tryGet}.
*/
function get(
AddressToUintMap storage map,
address key,
string memory errorMessage
) internal view returns (uint256) {
return uint256(get(map._inner, bytes32(uint256(uint160(key))), errorMessage));
}
/**
* @dev Return the an array containing all the keys
*
* WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed
* to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that
* this function has an unbounded cost, and using it as part of a state-changing function may render the function
* uncallable if the map grows to a point where copying to memory consumes too much gas to fit in a block.
*/
function keys(AddressToUintMap storage map) internal view returns (address[] memory) {
bytes32[] memory store = keys(map._inner);
address[] memory result;
/// @solidity memory-safe-assembly
assembly {
result := store
}
return result;
}
// Bytes32ToUintMap
struct Bytes32ToUintMap {
Bytes32ToBytes32Map _inner;
}
/**
* @dev Adds a key-value pair to a map, or updates the value for an existing
* key. O(1).
*
* Returns true if the key was added to the map, that is if it was not
* already present.
*/
function set(Bytes32ToUintMap storage map, bytes32 key, uint256 value) internal returns (bool) {
return set(map._inner, key, bytes32(value));
}
/**
* @dev Removes a value from a map. O(1).
*
* Returns true if the key was removed from the map, that is if it was present.
*/
function remove(Bytes32ToUintMap storage map, bytes32 key) internal returns (bool) {
return remove(map._inner, key);
}
/**
* @dev Returns true if the key is in the map. O(1).
*/
function contains(Bytes32ToUintMap storage map, bytes32 key) internal view returns (bool) {
return contains(map._inner, key);
}
/**
* @dev Returns the number of elements in the map. O(1).
*/
function length(Bytes32ToUintMap storage map) internal view returns (uint256) {
return length(map._inner);
}
/**
* @dev Returns the element stored at position `index` in the map. O(1).
* Note that there are no guarantees on the ordering of values inside the
* array, and it may change when more values are added or removed.
*
* Requirements:
*
* - `index` must be strictly less than {length}.
*/
function at(Bytes32ToUintMap storage map, uint256 index) internal view returns (bytes32, uint256) {
(bytes32 key, bytes32 value) = at(map._inner, index);
return (key, uint256(value));
}
/**
* @dev Tries to returns the value associated with `key`. O(1).
* Does not revert if `key` is not in the map.
*/
function tryGet(Bytes32ToUintMap storage map, bytes32 key) internal view returns (bool, uint256) {
(bool success, bytes32 value) = tryGet(map._inner, key);
return (success, uint256(value));
}
/**
* @dev Returns the value associated with `key`. O(1).
*
* Requirements:
*
* - `key` must be in the map.
*/
function get(Bytes32ToUintMap storage map, bytes32 key) internal view returns (uint256) {
return uint256(get(map._inner, key));
}
/**
* @dev Same as {get}, with a custom error message when `key` is not in the map.
*
* CAUTION: This function is deprecated because it requires allocating memory for the error
* message unnecessarily. For custom revert reasons use {tryGet}.
*/
function get(
Bytes32ToUintMap storage map,
bytes32 key,
string memory errorMessage
) internal view returns (uint256) {
return uint256(get(map._inner, key, errorMessage));
}
/**
* @dev Return the an array containing all the keys
*
* WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed
* to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that
* this function has an unbounded cost, and using it as part of a state-changing function may render the function
* uncallable if the map grows to a point where copying to memory consumes too much gas to fit in a block.
*/
function keys(Bytes32ToUintMap storage map) internal view returns (bytes32[] memory) {
bytes32[] memory store = keys(map._inner);
bytes32[] memory result;
/// @solidity memory-safe-assembly
assembly {
result := store
}
return result;
}
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.3) (token/ERC20/utils/SafeERC20.sol)
pragma solidity ^0.8.0;
import "IERC20.sol";
import "IERC20Permit.sol";
import "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;
/**
* @dev Transfer `value` amount of `token` from the calling contract to `to`. If `token` returns no value,
* non-reverting calls are assumed to be successful.
*/
function safeTransfer(IERC20 token, address to, uint256 value) internal {
_callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value));
}
/**
* @dev Transfer `value` amount of `token` from `from` to `to`, spending the approval given by `from` to the
* calling contract. If `token` returns no value, non-reverting calls are assumed to be successful.
*/
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));
}
/**
* @dev Increase the calling contract's allowance toward `spender` by `value`. If `token` returns no value,
* non-reverting calls are assumed to be successful.
*/
function safeIncreaseAllowance(IERC20 token, address spender, uint256 value) internal {
uint256 oldAllowance = token.allowance(address(this), spender);
_callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, oldAllowance + value));
}
/**
* @dev Decrease the calling contract's allowance toward `spender` by `value`. If `token` returns no value,
* non-reverting calls are assumed to be successful.
*/
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");
_callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, oldAllowance - value));
}
}
/**
* @dev Set the calling contract's allowance toward `spender` to `value`. If `token` returns no value,
* non-reverting calls are assumed to be successful. Meant to be used with tokens that require the approval
* to be set to zero before setting it to a non-zero value, such as USDT.
*/
function forceApprove(IERC20 token, address spender, uint256 value) internal {
bytes memory approvalCall = abi.encodeWithSelector(token.approve.selector, spender, value);
if (!_callOptionalReturnBool(token, approvalCall)) {
_callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, 0));
_callOptionalReturn(token, approvalCall);
}
}
/**
* @dev Use a ERC-2612 signature to set the `owner` approval toward `spender` on `token`.
* Revert on invalid signature.
*/
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");
require(returndata.length == 0 || abi.decode(returndata, (bool)), "SafeERC20: ERC20 operation 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).
*
* This is a variant of {_callOptionalReturn} that silents catches all reverts and returns a bool instead.
*/
function _callOptionalReturnBool(IERC20 token, bytes memory data) private returns (bool) {
// 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 cannot use {Address-functionCall} here since this should return false
// and not revert is the subcall reverts.
(bool success, bytes memory returndata) = address(token).call(data);
return
success && (returndata.length == 0 || abi.decode(returndata, (bool))) && Address.isContract(address(token));
}
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (token/ERC20/extensions/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 v4.9.0) (utils/introspection/ERC165Checker.sol)
pragma solidity ^0.8.0;
import "IERC165.sol";
/**
* @dev Library used to query support of an interface declared via {IERC165}.
*
* Note that these functions return the actual result of the query: they do not
* `revert` if an interface is not supported. It is up to the caller to decide
* what to do in these cases.
*/
library ERC165Checker {
// As per the EIP-165 spec, no interface should ever match 0xffffffff
bytes4 private constant _INTERFACE_ID_INVALID = 0xffffffff;
/**
* @dev Returns true if `account` supports the {IERC165} interface.
*/
function supportsERC165(address account) internal view returns (bool) {
// Any contract that implements ERC165 must explicitly indicate support of
// InterfaceId_ERC165 and explicitly indicate non-support of InterfaceId_Invalid
return
supportsERC165InterfaceUnchecked(account, type(IERC165).interfaceId) &&
!supportsERC165InterfaceUnchecked(account, _INTERFACE_ID_INVALID);
}
/**
* @dev Returns true if `account` supports the interface defined by
* `interfaceId`. Support for {IERC165} itself is queried automatically.
*
* See {IERC165-supportsInterface}.
*/
function supportsInterface(address account, bytes4 interfaceId) internal view returns (bool) {
// query support of both ERC165 as per the spec and support of _interfaceId
return supportsERC165(account) && supportsERC165InterfaceUnchecked(account, interfaceId);
}
/**
* @dev Returns a boolean array where each value corresponds to the
* interfaces passed in and whether they're supported or not. This allows
* you to batch check interfaces for a contract where your expectation
* is that some interfaces may not be supported.
*
* See {IERC165-supportsInterface}.
*
* _Available since v3.4._
*/
function getSupportedInterfaces(
address account,
bytes4[] memory interfaceIds
) internal view returns (bool[] memory) {
// an array of booleans corresponding to interfaceIds and whether they're supported or not
bool[] memory interfaceIdsSupported = new bool[](interfaceIds.length);
// query support of ERC165 itself
if (supportsERC165(account)) {
// query support of each interface in interfaceIds
for (uint256 i = 0; i < interfaceIds.length; i++) {
interfaceIdsSupported[i] = supportsERC165InterfaceUnchecked(account, interfaceIds[i]);
}
}
return interfaceIdsSupported;
}
/**
* @dev Returns true if `account` supports all the interfaces defined in
* `interfaceIds`. Support for {IERC165} itself is queried automatically.
*
* Batch-querying can lead to gas savings by skipping repeated checks for
* {IERC165} support.
*
* See {IERC165-supportsInterface}.
*/
function supportsAllInterfaces(address account, bytes4[] memory interfaceIds) internal view returns (bool) {
// query support of ERC165 itself
if (!supportsERC165(account)) {
return false;
}
// query support of each interface in interfaceIds
for (uint256 i = 0; i < interfaceIds.length; i++) {
if (!supportsERC165InterfaceUnchecked(account, interfaceIds[i])) {
return false;
}
}
// all interfaces supported
return true;
}
/**
* @notice Query if a contract implements an interface, does not check ERC165 support
* @param account The address of the contract to query for support of an interface
* @param interfaceId The interface identifier, as specified in ERC-165
* @return true if the contract at account indicates support of the interface with
* identifier interfaceId, false otherwise
* @dev Assumes that account contains a contract that supports ERC165, otherwise
* the behavior of this method is undefined. This precondition can be checked
* with {supportsERC165}.
*
* Some precompiled contracts will falsely indicate support for a given interface, so caution
* should be exercised when using this function.
*
* Interface identification is specified in ERC-165.
*/
function supportsERC165InterfaceUnchecked(address account, bytes4 interfaceId) internal view returns (bool) {
// prepare call
bytes memory encodedParams = abi.encodeWithSelector(IERC165.supportsInterface.selector, interfaceId);
// perform static call
bool success;
uint256 returnSize;
uint256 returnValue;
assembly {
success := staticcall(30000, account, add(encodedParams, 0x20), mload(encodedParams), 0x00, 0x20)
returnSize := returndatasize()
returnValue := mload(0x00)
}
return success && returnSize >= 0x20 && returnValue > 0;
}
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/introspection/IERC165.sol)
pragma solidity ^0.8.0;
/**
* @dev Interface of the ERC165 standard, as defined in the
* https://eips.ethereum.org/EIPS/eip-165[EIP].
*
* Implementers can declare support of contract interfaces, which can then be
* queried by others ({ERC165Checker}).
*
* For an implementation, see {ERC165}.
*/
interface IERC165 {
/**
* @dev Returns true if this contract implements the interface defined by
* `interfaceId`. See the corresponding
* https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section]
* to learn more about how these ids are created.
*
* This function call must use less than 30 000 gas.
*/
function supportsInterface(bytes4 interfaceId) external view returns (bool);
}// SPDX-License-Identifier: GPL-3.0-or-later
pragma solidity 0.8.17;
import "ILpToken.sol";
import "IRewardManager.sol";
import "IOracle.sol";
import "IController.sol";
import "IPausable.sol";
import "IConicPoolWeightManagement.sol";
interface IConicPool is IConicPoolWeightManagement, IPausable {
event Deposit(
address indexed sender,
address indexed receiver,
uint256 depositedAmount,
uint256 lpReceived
);
event Withdraw(address indexed account, uint256 amount);
event NewWeight(address indexed curvePool, uint256 newWeight);
event NewMaxIdleCurveLpRatio(uint256 newRatio);
event ClaimedRewards(uint256 claimedCrv, uint256 claimedCvx);
event HandledDepeggedCurvePool(address curvePool_);
event HandledInvalidConvexPid(address curvePool_, uint256 pid_);
event CurvePoolAdded(address curvePool_);
event CurvePoolRemoved(address curvePool_);
event Shutdown();
event DepegThresholdUpdated(uint256 newThreshold);
event MaxDeviationUpdated(uint256 newMaxDeviation);
event RebalancingRewardsEnabledSet(bool enabled);
event EmergencyRebalancingRewardFactorUpdated(uint256 factor);
struct PoolWithAmount {
address poolAddress;
uint256 amount;
}
function underlying() external view returns (IERC20Metadata);
function lpToken() external view returns (ILpToken);
function rewardManager() external view returns (IRewardManager);
function depegThreshold() external view returns (uint256);
function maxIdleCurveLpRatio() external view returns (uint256);
function setMaxIdleCurveLpRatio(uint256 value) external;
function setMaxDeviation(uint256 maxDeviation_) external;
function updateDepegThreshold(uint256 value) external;
function depositFor(
address _account,
uint256 _amount,
uint256 _minLpReceived,
bool stake
) external returns (uint256);
function deposit(uint256 _amount, uint256 _minLpReceived) external returns (uint256);
function deposit(
uint256 _amount,
uint256 _minLpReceived,
bool stake
) external returns (uint256);
function exchangeRate() external view returns (uint256);
function usdExchangeRate() external view returns (uint256);
function unstakeAndWithdraw(uint256 _amount, uint256 _minAmount) external returns (uint256);
function unstakeAndWithdraw(
uint256 _amount,
uint256 _minAmount,
address _to
) external returns (uint256);
function withdraw(uint256 _amount, uint256 _minAmount) external returns (uint256);
function withdraw(uint256 _amount, uint256 _minAmount, address _to) external returns (uint256);
function getAllocatedUnderlying() external view returns (PoolWithAmount[] memory);
function rebalancingRewardActive() external view returns (bool);
function totalDeviationAfterWeightUpdate() external view returns (uint256);
function computeTotalDeviation() external view returns (uint256);
/// @notice returns the total amount of funds held by this pool in terms of underlying
function totalUnderlying() external view returns (uint256);
function getTotalAndPerPoolUnderlying()
external
view
returns (
uint256 totalUnderlying_,
uint256 totalAllocated_,
uint256[] memory perPoolUnderlying_
);
/// @notice same as `totalUnderlying` but returns a cached version
/// that might be slightly outdated if oracle prices have changed
/// @dev this is useful in cases where we want to reduce gas usage and do
/// not need a precise value
function cachedTotalUnderlying() external view returns (uint256);
function updateRewardSpendingApproval(address token, bool approved) external;
function shutdownPool() external;
function isShutdown() external view returns (bool);
function isBalanced() external view returns (bool);
function rebalancingRewardsEnabled() external view returns (bool);
function setRebalancingRewardsEnabled(bool enabled) external;
function getAllUnderlyingCoins() external view returns (address[] memory result);
function rebalancingRewardsFactor() external view returns (uint256);
function rebalancingRewardsActivatedAt() external view returns (uint64);
function getWeights() external view returns (PoolWeight[] memory);
function runSanityChecks() external;
}// SPDX-License-Identifier: GPL-3.0-or-later
pragma solidity 0.8.17;
import "IERC20Metadata.sol";
interface ILpToken is IERC20Metadata {
function minter() external view returns (address);
function mint(address account, uint256 amount, address ubo) external returns (uint256);
function burn(address _owner, uint256 _amount, address ubo) external returns (uint256);
function taint(address from, address to, uint256 amount) external;
}// SPDX-License-Identifier: GPL-3.0-or-later
pragma solidity 0.8.17;
interface IRewardManager {
event ClaimedRewards(uint256 claimedCrv, uint256 claimedCvx);
event SoldRewardTokens(uint256 targetTokenReceived);
event ExtraRewardAdded(address reward);
event ExtraRewardRemoved(address reward);
event ExtraRewardsCurvePoolSet(address extraReward, address curvePool);
event FeesSet(uint256 feePercentage);
event FeesEnabled(uint256 feePercentage);
event EarningsClaimed(
address indexed claimedBy,
uint256 cncEarned,
uint256 crvEarned,
uint256 cvxEarned
);
function accountCheckpoint(address account) external;
function poolCheckpoint() external returns (bool);
function addExtraReward(address reward) external returns (bool);
function addBatchExtraRewards(address[] memory rewards) external;
function conicPool() external view returns (address);
function setFeePercentage(uint256 _feePercentage) external;
function claimableRewards(
address account
) external view returns (uint256 cncRewards, uint256 crvRewards, uint256 cvxRewards);
function claimEarnings() external returns (uint256, uint256, uint256);
function claimPoolEarningsAndSellRewardTokens() external;
function feePercentage() external view returns (uint256);
function feesEnabled() external view returns (bool);
}// SPDX-License-Identifier: GPL-3.0-or-later
pragma solidity 0.8.17;
interface IOracle {
event TokenUpdated(address indexed token, address feed, uint256 maxDelay, bool isEthPrice);
/// @notice returns the price in USD of symbol.
function getUSDPrice(address token) external view returns (uint256);
/// @notice returns if the given token is supported for pricing.
function isTokenSupported(address token) external view returns (bool);
}// SPDX-License-Identifier: GPL-3.0-or-later
pragma solidity 0.8.17;
import "IConicPoolWeightManagement.sol";
import "IConicPool.sol";
import "IGenericOracle.sol";
import "IInflationManager.sol";
import "ILpTokenStaker.sol";
import "IBonding.sol";
import "IPoolAdapter.sol";
import "IFeeRecipient.sol";
import "ICurveRegistryCache.sol";
interface IController {
event PoolAdded(address indexed pool);
event PoolRemoved(address indexed pool);
event PoolShutdown(address indexed pool);
event ConvexBoosterSet(address convexBooster);
event CurveHandlerSet(address curveHandler);
event ConvexHandlerSet(address convexHandler);
event CurveRegistryCacheSet(address curveRegistryCache);
event InflationManagerSet(address inflationManager);
event BondingSet(address bonding);
event FeeRecipientSet(address feeRecipient);
event PriceOracleSet(address priceOracle);
event WeightUpdateMinDelaySet(uint256 weightUpdateMinDelay);
event PauseManagerSet(address indexed manager, bool isManager);
event MultiDepositsWithdrawsWhitelistSet(address pool, bool allowed);
event MinimumTaintedTransferAmountSet(address indexed token, uint256 amount);
event DefaultPoolAdapterSet(address poolAdapter);
event CustomPoolAdapterSet(address indexed pool, address poolAdapter);
struct WeightUpdate {
address conicPoolAddress;
IConicPoolWeightManagement.PoolWeight[] weights;
}
function initialize(address _lpTokenStaker) external;
// inflation manager
function inflationManager() external view returns (IInflationManager);
function setInflationManager(address manager) external;
// views
function curveRegistryCache() external view returns (ICurveRegistryCache);
// pool adapter
function poolAdapterFor(address pool) external view returns (IPoolAdapter);
function defaultPoolAdapter() external view returns (IPoolAdapter);
function setDefaultPoolAdapter(address poolAdapter) external;
function setCustomPoolAdapter(address pool, address poolAdapter) external;
/// lp token staker
function switchLpTokenStaker(address _lpTokenStaker) external;
function lpTokenStaker() external view returns (ILpTokenStaker);
// bonding
function bonding() external view returns (IBonding);
function setBonding(address _bonding) external;
// fees
function feeRecipient() external view returns (IFeeRecipient);
function setFeeRecipient(address _feeRecipient) external;
// oracle
function priceOracle() external view returns (IGenericOracle);
function setPriceOracle(address oracle) external;
// pool functions
function listPools() external view returns (address[] memory);
function listActivePools() external view returns (address[] memory);
function isPool(address poolAddress) external view returns (bool);
function isActivePool(address poolAddress) external view returns (bool);
function addPool(address poolAddress) external;
function shutdownPool(address poolAddress) external;
function removePool(address poolAddress) external;
function cncToken() external view returns (address);
function lastWeightUpdate(address poolAddress) external view returns (uint256);
function updateWeights(WeightUpdate memory update) external;
function updateAllWeights(WeightUpdate[] memory weights) external;
// handler functions
function convexBooster() external view returns (address);
function curveHandler() external view returns (address);
function convexHandler() external view returns (address);
function setConvexBooster(address _convexBooster) external;
function setCurveHandler(address _curveHandler) external;
function setConvexHandler(address _convexHandler) external;
function setCurveRegistryCache(address curveRegistryCache_) external;
function setWeightUpdateMinDelay(uint256 delay) external;
function isPauseManager(address account) external view returns (bool);
function listPauseManagers() external view returns (address[] memory);
function setPauseManager(address account, bool isManager) external;
// deposit/withdrawal whitelist
function isAllowedMultipleDepositsWithdraws(address poolAddress) external view returns (bool);
function setAllowedMultipleDepositsWithdraws(address account, bool allowed) external;
function getMultipleDepositsWithdrawsWhitelist() external view returns (address[] memory);
// tainted transfer amount
function setMinimumTaintedTransferAmount(address token, uint256 amount) external;
function getMinimumTaintedTransferAmount(address token) external view returns (uint256);
// constants
function MAX_WEIGHT_UPDATE_MIN_DELAY() external view returns (uint256);
function MIN_WEIGHT_UPDATE_MIN_DELAY() external view returns (uint256);
}// SPDX-License-Identifier: GPL-3.0-or-later
pragma solidity 0.8.17;
interface IConicPoolWeightManagement {
struct PoolWeight {
address poolAddress;
uint256 weight;
}
function addPool(address pool) external;
function removePool(address pool) external;
function updateWeights(PoolWeight[] memory poolWeights) external;
function handleDepeggedCurvePool(address curvePool_) external;
function handleInvalidConvexPid(address pool) external returns (uint256);
function allPools() external view returns (address[] memory);
function poolsCount() external view returns (uint256);
function getPoolAtIndex(uint256 _index) external view returns (address);
function getWeight(address curvePool) external view returns (uint256);
function getWeights() external view returns (PoolWeight[] memory);
function isRegisteredPool(address _pool) external view returns (bool);
}// SPDX-License-Identifier: GPL-3.0-or-later
pragma solidity 0.8.17;
import "IOracle.sol";
interface IGenericOracle is IOracle {
/// @notice returns the oracle to be used to price `token`
function getOracle(address token) external view returns (IOracle);
/// @notice converts the price of an LP token to the given underlying
function curveLpToUnderlying(
address curveLpToken,
address underlying,
uint256 curveLpAmount
) external view returns (uint256);
/// @notice same as above but avoids fetching the underlying price again
function curveLpToUnderlying(
address curveLpToken,
address underlying,
uint256 curveLpAmount,
uint256 underlyingPrice
) external view returns (uint256);
/// @notice converts the price an underlying asset to a given Curve LP token
function underlyingToCurveLp(
address underlying,
address curveLpToken,
uint256 underlyingAmount
) external view returns (uint256);
}// SPDX-License-Identifier: GPL-3.0-or-later
pragma solidity 0.8.17;
interface IInflationManager {
event TokensClaimed(address indexed pool, uint256 cncAmount);
event RebalancingRewardHandlerAdded(address indexed pool, address indexed handler);
event RebalancingRewardHandlerRemoved(address indexed pool, address indexed handler);
event PoolWeightsUpdated();
function executeInflationRateUpdate() external;
function updatePoolWeights() external;
/// @notice returns the weights of the Conic pools to know how much inflation
/// each of them will receive, as well as the total amount of USD value in all the pools
function computePoolWeights()
external
view
returns (address[] memory _pools, uint256[] memory poolWeights, uint256 totalUSDValue);
function computePoolWeight(
address pool
) external view returns (uint256 poolWeight, uint256 totalUSDValue);
function currentInflationRate() external view returns (uint256);
function getCurrentPoolInflationRate(address pool) external view returns (uint256);
function handleRebalancingRewards(
address account,
uint256 deviationBefore,
uint256 deviationAfter
) external;
function addPoolRebalancingRewardHandler(
address poolAddress,
address rebalancingRewardHandler
) external;
function removePoolRebalancingRewardHandler(
address poolAddress,
address rebalancingRewardHandler
) external;
function rebalancingRewardHandlers(
address poolAddress
) external view returns (address[] memory);
function hasPoolRebalancingRewardHandler(
address poolAddress,
address handler
) external view returns (bool);
}// SPDX-License-Identifier: GPL-3.0-or-later
pragma solidity 0.8.17;
interface ILpTokenStaker {
event LpTokenStaked(address indexed account, uint256 amount);
event LpTokenUnstaked(address indexed account, uint256 amount);
event TokensClaimed(address indexed pool, uint256 cncAmount);
event Shutdown();
function stake(uint256 amount, address conicPool) external;
function unstake(uint256 amount, address conicPool) external;
function stakeFor(uint256 amount, address conicPool, address account) external;
function unstakeFor(uint256 amount, address conicPool, address account) external;
function unstakeFrom(uint256 amount, address account) external;
function getUserBalanceForPool(
address conicPool,
address account
) external view returns (uint256);
function getBalanceForPool(address conicPool) external view returns (uint256);
function updateBoost(address user) external;
function claimCNCRewardsForPool(address pool) external;
function claimableCnc(address pool) external view returns (uint256);
function checkpoint(address pool) external returns (uint256);
function shutdown() external;
function getBoost(address user) external view returns (uint256);
function isShutdown() external view returns (bool);
}// SPDX-License-Identifier: GPL-3.0-or-later
pragma solidity 0.8.17;
interface IBonding {
event CncStartPriceSet(uint256 startPrice);
event PriceIncreaseFactorSet(uint256 factor);
event MinBondingAmountSet(uint256 amount);
event Bonded(
address indexed account,
address indexed recipient,
uint256 lpTokenAmount,
uint256 cncReceived,
uint256 lockTime
);
event DebtPoolSet(address indexed pool);
event DebtPoolFeesClaimed(uint256 crvAmount, uint256 cvxAmount, uint256 cncAmount);
event StreamClaimed(address indexed account, uint256 amount);
event BondingStarted(uint256 amount, uint256 epochs);
event RemainingCNCRecovered(uint256 amount);
function startBonding() external;
function setCncStartPrice(uint256 _cncStartPrice) external;
function setCncPriceIncreaseFactor(uint256 _priceIncreaseFactor) external;
function setMinBondingAmount(uint256 _minBondingAmount) external;
function setDebtPool(address _debtPool) external;
function bondCncCrvUsd(
uint256 lpTokenAmount,
uint256 minCncReceived,
uint64 cncLockTime
) external returns (uint256);
function recoverRemainingCNC() external;
function claimStream() external;
function claimFeesForDebtPool() external;
function streamCheckpoint() external;
function accountCheckpoint(address account) external;
function computeCurrentCncBondPrice() external view returns (uint256);
function cncAvailable() external view returns (uint256);
function cncBondPrice() external view returns (uint256);
function bondCncCrvUsdFor(
uint256 lpTokenAmount,
uint256 minCncReceived,
uint64 cncLockTime,
address recipient
) external returns (uint256);
}// SPDX-License-Identifier: GPL-3.0-or-later
pragma solidity 0.8.17;
interface IPoolAdapter {
/// @notice This is to set which LP token price the value computation should use
/// `Latest` uses a freshly computed price
/// `Cached` uses the price in cache
/// `Minimum` uses the minimum of these two
enum PriceMode {
Latest,
Cached,
Minimum
}
/// @notice Deposit `underlyingAmount` of `underlying` into `pool`
/// @dev This function should be written with the assumption that it will be delegate-called into
function deposit(address pool, address underlying, uint256 underlyingAmount) external;
/// @notice Withdraw `underlyingAmount` of `underlying` from `pool`
/// @dev This function should be written with the assumption that it will be delegate-called into
function withdraw(address pool, address underlying, uint256 underlyingAmount) external;
/// @notice Returns the amount of of assets that `conicPool` holds in `pool`, in terms of USD
function computePoolValueInUSD(
address conicPool,
address pool
) external view returns (uint256 usdAmount);
/// @notice Updates the price caches of the given pools
function updatePriceCache(address pool) external;
/// @notice Returns the amount of of assets that `conicPool` holds in `pool`, in terms of USD
/// using the given price mode
function computePoolValueInUSD(
address conicPool,
address pool,
PriceMode priceMode
) external view returns (uint256 usdAmount);
/// @notice Returns the amount of of assets that `conicPool` holds in `pool`, in terms of underlying
function computePoolValueInUnderlying(
address conicPool,
address pool,
address underlying,
uint256 underlyingPrice
) external view returns (uint256 underlyingAmount);
/// @notice Returns the amount of of assets that `conicPool` holds in `pool`, in terms of underlying
/// using the given price mode
function computePoolValueInUnderlying(
address conicPool,
address pool,
address underlying,
uint256 underlyingPrice,
PriceMode priceMode
) external view returns (uint256 underlyingAmount);
/// @notice Claim earnings of `conicPool` from `pool`
function claimEarnings(address conicPool, address pool) external;
/// @notice Returns the LP token of a given `pool`
function lpToken(address pool) external view returns (address);
/// @notice Returns true if `pool` supports `asset`
function supportsAsset(address pool, address asset) external view returns (bool);
/// @notice Returns the amount of CRV earned by `pool` on Convex
function getCRVEarnedOnConvex(
address account,
address curvePool
) external view returns (uint256);
/// @notice Executes a sanity check, e.g. checking for reentrancy
function executeSanityCheck(address pool) external;
/// @notice returns all the underlying coins of the pool
function getAllUnderlyingCoins(address pool) external view returns (address[] memory);
}// SPDX-License-Identifier: GPL-3.0-or-later
pragma solidity 0.8.17;
interface IFeeRecipient {
event FeesReceived(address indexed sender, uint256 crvAmount, uint256 cvxAmount);
function receiveFees(uint256 amountCrv, uint256 amountCvx) external;
}// SPDX-License-Identifier: GPL-3.0-or-later
pragma solidity 0.8.17;
import "IBooster.sol";
import "CurvePoolUtils.sol";
interface ICurveRegistryCache {
event PoolInitialized(address indexed pool, uint256 indexed pid);
function BOOSTER() external view returns (IBooster);
function initPool(address pool_) external;
function initPool(address pool_, uint256 pid_) external;
function lpToken(address pool_) external view returns (address);
function assetType(address pool_) external view returns (CurvePoolUtils.AssetType);
function isRegistered(address pool_) external view returns (bool);
function hasCoinDirectly(address pool_, address coin_) external view returns (bool);
function hasCoinAnywhere(address pool_, address coin_) external view returns (bool);
function basePool(address pool_) external view returns (address);
function coinIndex(address pool_, address coin_) external view returns (int128);
function nCoins(address pool_) external view returns (uint256);
function coinIndices(
address pool_,
address from_,
address to_
) external view returns (int128, int128, bool);
function decimals(address pool_) external view returns (uint256[] memory);
function interfaceVersion(address pool_) external view returns (uint256);
function poolFromLpToken(address lpToken_) external view returns (address);
function coins(address pool_) external view returns (address[] memory);
function getPid(address _pool) external view returns (uint256);
function getRewardPool(address _pool) external view returns (address);
function isShutdownPid(uint256 pid_) external view returns (bool);
/// @notice this returns the underlying coins of a pool, including the underlying of the base pool
/// if the given pool is a meta pool
/// This does not return the LP token of the base pool as an underlying
/// e.g. if the pool is 3CrvFrax, this will return FRAX, DAI, USDC, USDT
function getAllUnderlyingCoins(address pool) external view returns (address[] memory);
}// SPDX-License-Identifier: UNLICENSED
pragma solidity 0.8.17;
interface IBooster {
function poolInfo(
uint256 pid
)
external
view
returns (
address lpToken,
address token,
address gauge,
address crvRewards,
address stash,
bool shutdown
);
function poolLength() external view returns (uint256);
function deposit(uint256 _pid, uint256 _amount, bool _stake) external returns (bool);
function withdraw(uint256 _pid, uint256 _amount) external returns (bool);
function withdrawAll(uint256 _pid) external returns (bool);
function depositAll(uint256 _pid, bool _stake) external returns (bool);
function earmarkRewards(uint256 _pid) external returns (bool);
function isShutdown() external view returns (bool);
}// SPDX-License-Identifier: GPL-3.0-or-later
pragma solidity 0.8.17;
import "ICurvePoolV2.sol";
import "ICurvePoolV1.sol";
import "ScaledMath.sol";
library CurvePoolUtils {
using ScaledMath for uint256;
error NotWithinThreshold(address pool, uint256 assetA, uint256 assetB);
/// @dev by default, allow for 30 bps deviation regardless of pool fees
uint256 internal constant _DEFAULT_IMBALANCE_BUFFER = 30e14;
/// @dev Curve scales the `fee` by 1e10
uint8 internal constant _CURVE_POOL_FEE_DECIMALS = 10;
/// @dev allow imbalance to be buffer + 3x the fee, e.g. if fee is 3.6 bps and buffer is 30 bps, allow 40.8 bps
uint256 internal constant _FEE_IMBALANCE_MULTIPLIER = 3;
enum AssetType {
USD,
ETH,
BTC,
OTHER,
CRYPTO
}
struct PoolMeta {
address pool;
uint256 numberOfCoins;
AssetType assetType;
uint256[] decimals;
uint256[] prices;
uint256[] imbalanceBuffers;
}
function ensurePoolBalanced(PoolMeta memory poolMeta) internal view {
uint256 poolFee = ICurvePoolV1(poolMeta.pool).fee().convertScale(
_CURVE_POOL_FEE_DECIMALS,
18
);
for (uint256 i = 0; i < poolMeta.numberOfCoins - 1; i++) {
uint256 fromDecimals = poolMeta.decimals[i];
uint256 fromBalance = 10 ** fromDecimals;
uint256 fromPrice = poolMeta.prices[i];
for (uint256 j = i + 1; j < poolMeta.numberOfCoins; j++) {
uint256 toDecimals = poolMeta.decimals[j];
uint256 toPrice = poolMeta.prices[j];
uint256 toExpectedUnscaled = (fromBalance * fromPrice) / toPrice;
uint256 toExpected = toExpectedUnscaled.convertScale(
uint8(fromDecimals),
uint8(toDecimals)
);
uint256 toActual;
if (poolMeta.assetType == AssetType.CRYPTO) {
// Handling crypto pools
toActual = ICurvePoolV2(poolMeta.pool).get_dy(i, j, fromBalance);
} else {
// Handling other pools
toActual = ICurvePoolV1(poolMeta.pool).get_dy(
int128(uint128(i)),
int128(uint128(j)),
fromBalance
);
}
uint256 _maxImbalanceBuffer = poolMeta.imbalanceBuffers[i].max(
poolMeta.imbalanceBuffers[j]
);
if (!_isWithinThreshold(toExpected, toActual, poolFee, _maxImbalanceBuffer))
revert NotWithinThreshold(poolMeta.pool, i, j);
}
}
}
function _isWithinThreshold(
uint256 a,
uint256 b,
uint256 poolFee,
uint256 imbalanceBuffer
) internal pure returns (bool) {
if (imbalanceBuffer == 0) imbalanceBuffer = _DEFAULT_IMBALANCE_BUFFER;
uint256 imbalanceTreshold = imbalanceBuffer + poolFee * _FEE_IMBALANCE_MULTIPLIER;
if (a > b) return (a - b).divDown(a) <= imbalanceTreshold;
return (b - a).divDown(b) <= imbalanceTreshold;
}
}// SPDX-License-Identifier: UNLICENSED
pragma solidity 0.8.17;
interface ICurvePoolV2 {
function token() external view returns (address);
function coins(uint256 i) external view returns (address);
function factory() external view returns (address);
function exchange(
uint256 i,
uint256 j,
uint256 dx,
uint256 min_dy,
bool use_eth,
address receiver
) external returns (uint256);
function exchange_underlying(
uint256 i,
uint256 j,
uint256 dx,
uint256 min_dy,
address receiver
) external returns (uint256);
function add_liquidity(
uint256[2] memory amounts,
uint256 min_mint_amount,
bool use_eth,
address receiver
) external returns (uint256);
function add_liquidity(
uint256[2] memory amounts,
uint256 min_mint_amount
) external returns (uint256);
function add_liquidity(
uint256[3] memory amounts,
uint256 min_mint_amount,
bool use_eth,
address receiver
) external returns (uint256);
function add_liquidity(
uint256[3] memory amounts,
uint256 min_mint_amount
) external returns (uint256);
function remove_liquidity(
uint256 _amount,
uint256[2] memory min_amounts,
bool use_eth,
address receiver
) external;
function remove_liquidity(uint256 _amount, uint256[2] memory min_amounts) external;
function remove_liquidity(
uint256 _amount,
uint256[3] memory min_amounts,
bool use_eth,
address receiver
) external;
function remove_liquidity(uint256 _amount, uint256[3] memory min_amounts) external;
function remove_liquidity_one_coin(
uint256 token_amount,
uint256 i,
uint256 min_amount,
bool use_eth,
address receiver
) external returns (uint256);
function get_dy(uint256 i, uint256 j, uint256 dx) external view returns (uint256);
function calc_token_amount(uint256[] memory amounts) external view returns (uint256);
function calc_withdraw_one_coin(
uint256 token_amount,
uint256 i
) external view returns (uint256);
function get_virtual_price() external view returns (uint256);
}// SPDX-License-Identifier: UNLICENSED
pragma solidity 0.8.17;
interface ICurvePoolV1 {
function get_virtual_price() external view returns (uint256);
function add_liquidity(uint256[8] calldata amounts, uint256 min_mint_amount) external;
function add_liquidity(uint256[7] calldata amounts, uint256 min_mint_amount) external;
function add_liquidity(uint256[6] calldata amounts, uint256 min_mint_amount) external;
function add_liquidity(uint256[5] calldata amounts, uint256 min_mint_amount) external;
function add_liquidity(uint256[4] calldata amounts, uint256 min_mint_amount) external;
function add_liquidity(uint256[3] calldata amounts, uint256 min_mint_amount) external;
function add_liquidity(uint256[2] calldata amounts, uint256 min_mint_amount) external;
function remove_liquidity_imbalance(
uint256[4] calldata amounts,
uint256 max_burn_amount
) external;
function remove_liquidity_imbalance(
uint256[3] calldata amounts,
uint256 max_burn_amount
) external;
function remove_liquidity_imbalance(
uint256[2] calldata amounts,
uint256 max_burn_amount
) external;
function lp_token() external view returns (address);
function A_PRECISION() external view returns (uint256);
function A_precise() external view returns (uint256);
function remove_liquidity(uint256 _amount, uint256[3] calldata min_amounts) external;
function exchange(
int128 from,
int128 to,
uint256 _from_amount,
uint256 _min_to_amount
) external;
function coins(uint256 i) external view returns (address);
function balances(uint256 i) external view returns (uint256);
function get_dy(int128 i, int128 j, uint256 _dx) external view returns (uint256);
function calc_token_amount(
uint256[4] calldata amounts,
bool deposit
) external view returns (uint256);
function calc_token_amount(
uint256[3] calldata amounts,
bool deposit
) external view returns (uint256);
function calc_token_amount(
uint256[2] calldata amounts,
bool deposit
) external view returns (uint256);
function calc_withdraw_one_coin(
uint256 _token_amount,
int128 i
) external view returns (uint256);
function remove_liquidity_one_coin(
uint256 _token_amount,
int128 i,
uint256 min_amount
) external;
function fee() external view returns (uint256);
}// SPDX-License-Identifier: GPL-3.0-or-later
pragma solidity 0.8.17;
library ScaledMath {
uint256 internal constant DECIMALS = 18;
uint256 internal constant ONE = 10 ** DECIMALS;
function mulDown(uint256 a, uint256 b) internal pure returns (uint256) {
return (a * b) / ONE;
}
function mulDown(uint256 a, uint256 b, uint256 decimals) internal pure returns (uint256) {
return (a * b) / (10 ** decimals);
}
function divDown(uint256 a, uint256 b) internal pure returns (uint256) {
return (a * ONE) / b;
}
function divDown(uint256 a, uint256 b, uint256 decimals) internal pure returns (uint256) {
return (a * 10 ** decimals) / b;
}
function divUp(uint256 a, uint256 b) internal pure returns (uint256) {
if (a == 0) {
return 0;
}
return ((a * ONE) - 1) / b + 1;
}
function mulDown(int256 a, int256 b) internal pure returns (int256) {
return (a * b) / int256(ONE);
}
function mulDownUint128(uint128 a, uint128 b) internal pure returns (uint128) {
return (a * b) / uint128(ONE);
}
function mulDown(int256 a, int256 b, uint256 decimals) internal pure returns (int256) {
return (a * b) / int256(10 ** decimals);
}
function divDown(int256 a, int256 b) internal pure returns (int256) {
return (a * int256(ONE)) / b;
}
function divDownUint128(uint128 a, uint128 b) internal pure returns (uint128) {
return (a * uint128(ONE)) / b;
}
function divDown(int256 a, int256 b, uint256 decimals) internal pure returns (int256) {
return (a * int256(10 ** decimals)) / b;
}
function convertScale(
uint256 a,
uint8 fromDecimals,
uint8 toDecimals
) internal pure returns (uint256) {
if (fromDecimals == toDecimals) return a;
if (fromDecimals > toDecimals) return downscale(a, fromDecimals, toDecimals);
return upscale(a, fromDecimals, toDecimals);
}
function convertScale(
int256 a,
uint8 fromDecimals,
uint8 toDecimals
) internal pure returns (int256) {
if (fromDecimals == toDecimals) return a;
if (fromDecimals > toDecimals) return downscale(a, fromDecimals, toDecimals);
return upscale(a, fromDecimals, toDecimals);
}
function upscale(
uint256 a,
uint8 fromDecimals,
uint8 toDecimals
) internal pure returns (uint256) {
return a * (10 ** (toDecimals - fromDecimals));
}
function downscale(
uint256 a,
uint8 fromDecimals,
uint8 toDecimals
) internal pure returns (uint256) {
return a / (10 ** (fromDecimals - toDecimals));
}
function upscale(
int256 a,
uint8 fromDecimals,
uint8 toDecimals
) internal pure returns (int256) {
return a * int256(10 ** (toDecimals - fromDecimals));
}
function downscale(
int256 a,
uint8 fromDecimals,
uint8 toDecimals
) internal pure returns (int256) {
return a / int256(10 ** (fromDecimals - toDecimals));
}
function intPow(uint256 a, uint256 n) internal pure returns (uint256) {
uint256 result = ONE;
for (uint256 i; i < n; ) {
result = mulDown(result, a);
unchecked {
++i;
}
}
return result;
}
function absSub(uint256 a, uint256 b) internal pure returns (uint256) {
unchecked {
return a >= b ? a - b : b - a;
}
}
function max(uint256 a, uint256 b) internal pure returns (uint256) {
return a >= b ? a : b;
}
function min(uint256 a, uint256 b) internal pure returns (uint256) {
return a <= b ? a : b;
}
}// SPDX-License-Identifier: GPL-3.0-or-later
pragma solidity 0.8.17;
import "Ownable.sol";
import "IController.sol";
interface IPausable {
event Paused(uint256 pausedUntil);
event PauseDurationSet(uint256 pauseDuration);
function controller() external view returns (IController);
function pausedUntil() external view returns (uint256);
function pauseDuration() external view returns (uint256);
function isPaused() external view returns (bool);
function setPauseDuration(uint256 _pauseDuration) external;
function pause() external;
}// SPDX-License-Identifier: GPL-3.0-or-later
pragma solidity 0.8.17;
interface IWithdrawalProcessor {
function processWithdrawal(address account, uint256 underlyingAmount) external;
}// SPDX-License-Identifier: MIT
pragma solidity 0.8.17;
interface IBaseRewardPool {
function stakeFor(address, uint256) external;
function stake(uint256) external;
function stakeAll() external returns (bool);
function withdraw(uint256 amount, bool claim) external returns (bool);
function withdrawAndUnwrap(uint256 amount, bool claim) external returns (bool);
function earned(address account) external view returns (uint256);
function getReward() external;
function getReward(address _account, bool _claimExtras) external;
function extraRewardsLength() external view returns (uint256);
function extraRewards(uint256 _pid) external view returns (address);
function rewardToken() external view returns (address);
function balanceOf(address account) external view returns (uint256);
}// SPDX-License-Identifier: GPL-3.0-or-later
pragma solidity 0.8.17;
import "ERC20.sol";
import "SafeERC20.sol";
import "IController.sol";
import "ILpToken.sol";
contract LpToken is ILpToken, ERC20 {
IController public immutable controller;
address public immutable override minter;
modifier onlyMinter() {
require(msg.sender == minter, "not authorized");
_;
}
mapping(address => uint256) internal _lastEvent;
uint8 private __decimals;
constructor(
address _controller,
address _minter,
uint8 _decimals,
string memory name_,
string memory symbol_
) ERC20(name_, symbol_) {
controller = IController(_controller);
minter = _minter;
__decimals = _decimals;
}
function decimals() public view virtual override(ERC20, IERC20Metadata) returns (uint8) {
return __decimals;
}
function mint(
address _account,
uint256 _amount,
address ubo
) external override onlyMinter returns (uint256) {
_ensureSingleEvent(ubo, _amount);
_mint(_account, _amount);
return _amount;
}
function burn(
address _owner,
uint256 _amount,
address ubo
) external override onlyMinter returns (uint256) {
_ensureSingleEvent(ubo, _amount);
_burn(_owner, _amount);
return _amount;
}
function taint(address from, address to, uint256 amount) external {
require(msg.sender == address(controller.lpTokenStaker()), "not authorized");
_taint(from, to, amount);
}
function _beforeTokenTransfer(address from, address to, uint256 amount) internal override {
// mint/burn are handled in their respective functions
if (from == address(0) || to == address(0)) return;
// lpTokenStaker calls `taint` as needed
address lpTokenStaker = address(controller.lpTokenStaker());
if (from == lpTokenStaker || to == lpTokenStaker) return;
// taint any other type of transfer
_taint(from, to, amount);
}
function _ensureSingleEvent(address ubo, uint256 amount) internal {
if (
!controller.isAllowedMultipleDepositsWithdraws(ubo) &&
amount > controller.getMinimumTaintedTransferAmount(address(this))
) {
require(_lastEvent[ubo] != block.number, "cannot mint/burn twice in a block");
_lastEvent[ubo] = block.number;
}
}
function _taint(address from, address to, uint256 amount) internal {
if (
from != to &&
_lastEvent[from] == block.number &&
amount > controller.getMinimumTaintedTransferAmount(address(this))
) {
_lastEvent[to] = block.number;
}
}
}// SPDX-License-Identifier: GPL-3.0-or-later
pragma solidity 0.8.17;
import "Ownable.sol";
import "IController.sol";
import "IPausable.sol";
abstract contract Pausable is Ownable, IPausable {
uint256 internal constant _MIN_PAUSE_DURATION = 1 hours;
uint256 internal constant _MAX_PAUSE_DURATION = 3 days;
uint256 internal constant _INITIAL_PAUSE_DURATION = 8 hours;
uint256 public pausedUntil;
uint256 public pauseDuration;
IController public immutable controller;
modifier notPaused() {
require(!isPaused(), "paused");
_;
}
constructor(IController _controller) {
controller = _controller;
pauseDuration = _INITIAL_PAUSE_DURATION;
}
function setPauseDuration(uint256 _pauseDuration) external onlyOwner {
require(_pauseDuration >= _MIN_PAUSE_DURATION, "pause duration too short");
require(_pauseDuration <= _MAX_PAUSE_DURATION, "pause duration too long");
pauseDuration = _pauseDuration;
emit PauseDurationSet(pauseDuration);
}
function pause() external {
require(controller.isPauseManager(msg.sender), "not pause manager");
pausedUntil = block.timestamp + pauseDuration;
emit Paused(pausedUntil);
}
function isPaused() public view override returns (bool) {
return pausedUntil >= block.timestamp;
}
}// SPDX-License-Identifier: GPL-3.0-or-later
pragma solidity 0.8.17;
import "EnumerableSet.sol";
import "EnumerableMap.sol";
import "SafeERC20.sol";
import "IConicPool.sol";
import "IConicPoolWeightManager.sol";
import "ScaledMath.sol";
contract ConicPoolWeightManager is IConicPoolWeightManager {
using EnumerableSet for EnumerableSet.AddressSet;
using EnumerableMap for EnumerableMap.AddressToUintMap;
using ScaledMath for uint256;
using SafeERC20 for IERC20;
event CurvePoolAdded(address curvePool_);
event CurvePoolRemoved(address curvePool_);
event NewWeight(address indexed curvePool, uint256 newWeight);
uint256 internal constant _MAX_USD_VALUE_FOR_REMOVING_POOL = 100e18;
uint256 internal constant _MAX_CURVE_POOLS = 10;
IConicPool public immutable conicPool;
IController public immutable controller;
IERC20Metadata public immutable underlying;
EnumerableSet.AddressSet internal _pools;
EnumerableMap.AddressToUintMap internal weights; // liquidity allocation weights
modifier onlyController() {
require(msg.sender == address(controller), "not authorized");
_;
}
modifier onlyConicPool() {
require(msg.sender == address(conicPool), "not authorized");
_;
}
constructor(IController _controller, IERC20Metadata _underlying) {
conicPool = IConicPool(msg.sender);
controller = _controller;
underlying = _underlying;
}
function addPool(address _pool) external onlyConicPool {
require(_pools.length() < _MAX_CURVE_POOLS, "max pools reached");
require(!_pools.contains(_pool), "pool already added");
IPoolAdapter poolAdapter = controller.poolAdapterFor(_pool);
bool supported_ = poolAdapter.supportsAsset(_pool, address(underlying));
require(supported_, "coin not in pool");
address lpToken_ = poolAdapter.lpToken(_pool);
require(controller.priceOracle().isTokenSupported(lpToken_), "cannot price LP Token");
if (!weights.contains(_pool)) weights.set(_pool, 0);
require(_pools.add(_pool), "failed to add pool");
emit CurvePoolAdded(_pool);
}
// This requires that the weight of the pool is first set to 0
function removePool(address _pool) external onlyConicPool {
require(_pools.contains(_pool), "pool not added");
require(_pools.length() > 1, "cannot remove last pool");
IPoolAdapter poolAdapter = controller.poolAdapterFor(_pool);
uint256 usdValue = poolAdapter.computePoolValueInUSD(address(conicPool), _pool);
require(usdValue < _MAX_USD_VALUE_FOR_REMOVING_POOL, "pool has allocated funds");
uint256 weight = weights.get(_pool);
require(weight == 0, "pool has weight set");
require(_pools.remove(_pool), "pool not removed");
require(weights.remove(_pool), "weight not removed");
emit CurvePoolRemoved(_pool);
}
function updateWeights(PoolWeight[] memory poolWeights) external onlyConicPool {
require(poolWeights.length == _pools.length(), "invalid pool weights");
uint256 total;
address previousPool;
for (uint256 i; i < poolWeights.length; i++) {
address pool_ = poolWeights[i].poolAddress;
require(pool_ > previousPool, "pools not sorted");
require(isRegisteredPool(pool_), "pool is not registered");
uint256 newWeight = poolWeights[i].weight;
weights.set(pool_, newWeight);
emit NewWeight(pool_, newWeight);
total += newWeight;
previousPool = pool_;
}
require(total == ScaledMath.ONE, "weights do not sum to 1");
}
function handleDepeggedCurvePool(address curvePool_) external onlyConicPool {
// Validation
require(isRegisteredPool(curvePool_), "pool is not registered");
require(weights.get(curvePool_) != 0, "pool weight already 0");
// Set target curve pool weight to 0
// Scale up other weights to compensate
_setWeightToZero(curvePool_);
}
function handleInvalidConvexPid(address curvePool_) external onlyConicPool returns (uint256) {
require(isRegisteredPool(curvePool_), "curve pool not registered");
ICurveRegistryCache registryCache_ = controller.curveRegistryCache();
uint256 pid = registryCache_.getPid(curvePool_);
require(registryCache_.isShutdownPid(pid), "convex pool pid is not shut down");
_setWeightToZero(curvePool_);
return pid;
}
function getDepositPool(
uint256 totalUnderlying_,
uint256[] memory allocatedPerPool,
uint256 maxDeviation
) external view returns (uint256 poolIndex, uint256 maxDepositAmount) {
uint256 poolsCount_ = allocatedPerPool.length;
int256 iPoolIndex = -1;
for (uint256 i; i < poolsCount_; i++) {
address pool_ = _pools.at(i);
uint256 allocatedUnderlying_ = allocatedPerPool[i];
uint256 weight_ = weights.get(pool_);
uint256 targetAllocation_ = totalUnderlying_.mulDown(weight_);
if (allocatedUnderlying_ >= targetAllocation_) continue;
// Compute max balance with deviation
uint256 weightWithDeviation_ = weight_.mulDown(ScaledMath.ONE + maxDeviation);
weightWithDeviation_ = weightWithDeviation_ > ScaledMath.ONE
? ScaledMath.ONE
: weightWithDeviation_;
uint256 maxBalance_ = totalUnderlying_.mulDown(weightWithDeviation_);
uint256 maxDepositAmount_ = maxBalance_ - allocatedUnderlying_;
if (maxDepositAmount_ <= maxDepositAmount) continue;
maxDepositAmount = maxDepositAmount_;
iPoolIndex = int256(i);
}
require(iPoolIndex > -1, "error retrieving deposit pool");
poolIndex = uint256(iPoolIndex);
}
function getWithdrawPool(
uint256 totalUnderlying_,
uint256[] memory allocatedPerPool,
uint256 maxDeviation
) external view returns (uint256 withdrawPoolIndex, uint256 maxWithdrawalAmount) {
uint256 poolsCount_ = allocatedPerPool.length;
int256 iWithdrawPoolIndex = -1;
for (uint256 i; i < poolsCount_; i++) {
address curvePool_ = _pools.at(i);
uint256 weight_ = weights.get(curvePool_);
uint256 allocatedUnderlying_ = allocatedPerPool[i];
// If a pool has a weight of 0,
// withdraw from it if it has more than the max lp value
if (weight_ == 0) {
uint256 price_ = controller.priceOracle().getUSDPrice(address(underlying));
uint256 allocatedUsd = (price_ * allocatedUnderlying_) /
10 ** underlying.decimals();
if (allocatedUsd >= _MAX_USD_VALUE_FOR_REMOVING_POOL / 2) {
return (uint256(i), allocatedUnderlying_);
}
}
uint256 targetAllocation_ = totalUnderlying_.mulDown(weight_);
if (allocatedUnderlying_ <= targetAllocation_) continue;
uint256 minBalance_ = targetAllocation_ - targetAllocation_.mulDown(maxDeviation);
uint256 maxWithdrawalAmount_ = allocatedUnderlying_ - minBalance_;
if (maxWithdrawalAmount_ <= maxWithdrawalAmount) continue;
maxWithdrawalAmount = maxWithdrawalAmount_;
iWithdrawPoolIndex = int256(i);
}
require(iWithdrawPoolIndex > -1, "error retrieving withdraw pool");
withdrawPoolIndex = uint256(iWithdrawPoolIndex);
}
function allPools() external view returns (address[] memory) {
return _pools.values();
}
function poolsCount() external view returns (uint256) {
return _pools.length();
}
function getPoolAtIndex(uint256 _index) external view returns (address) {
return _pools.at(_index);
}
function isRegisteredPool(address _pool) public view returns (bool) {
return _pools.contains(_pool);
}
function getWeight(address pool) external view returns (uint256) {
return weights.get(pool);
}
function getWeights() external view returns (IConicPool.PoolWeight[] memory) {
uint256 length_ = _pools.length();
IConicPool.PoolWeight[] memory weights_ = new IConicPool.PoolWeight[](length_);
for (uint256 i; i < length_; i++) {
(address pool_, uint256 weight_) = weights.at(i);
weights_[i] = PoolWeight(pool_, weight_);
}
return weights_;
}
function computeTotalDeviation(
uint256 allocatedUnderlying_,
uint256[] memory perPoolAllocations_
) external view returns (uint256) {
uint256 totalDeviation;
for (uint256 i; i < perPoolAllocations_.length; i++) {
uint256 weight = weights.get(_pools.at(i));
uint256 targetAmount = allocatedUnderlying_.mulDown(weight);
totalDeviation += targetAmount.absSub(perPoolAllocations_[i]);
}
return totalDeviation;
}
function isBalanced(
uint256[] memory allocatedPerPool_,
uint256 totalAllocated_,
uint256 maxDeviation
) external view returns (bool) {
if (totalAllocated_ == 0) return true;
for (uint256 i; i < allocatedPerPool_.length; i++) {
uint256 weight_ = weights.get(_pools.at(i));
uint256 currentAllocated_ = allocatedPerPool_[i];
// If a curve pool has a weight of 0,
if (weight_ == 0) {
uint256 price_ = controller.priceOracle().getUSDPrice(address(underlying));
uint256 allocatedUsd_ = (price_ * currentAllocated_) / 10 ** underlying.decimals();
if (allocatedUsd_ >= _MAX_USD_VALUE_FOR_REMOVING_POOL / 2) {
return false;
}
continue;
}
uint256 targetAmount = totalAllocated_.mulDown(weight_);
uint256 deviation = targetAmount.absSub(currentAllocated_);
uint256 deviationRatio = deviation.divDown(targetAmount);
if (deviationRatio > maxDeviation) return false;
}
return true;
}
function _setWeightToZero(address zeroedPool) internal {
uint256 weight_ = weights.get(zeroedPool);
if (weight_ == 0) return;
require(weight_ != ScaledMath.ONE, "can't remove last pool");
uint256 scaleUp_ = ScaledMath.ONE.divDown(ScaledMath.ONE - weights.get(zeroedPool));
uint256 curvePoolLength_ = _pools.length();
weights.set(zeroedPool, 0);
emit NewWeight(zeroedPool, 0);
address[] memory nonZeroPools = new address[](curvePoolLength_ - 1);
uint256[] memory nonZeroWeights = new uint256[](curvePoolLength_ - 1);
uint256 nonZeroPoolsCount;
for (uint256 i; i < curvePoolLength_; i++) {
address pool_ = _pools.at(i);
uint256 currentWeight = weights.get(pool_);
if (currentWeight == 0) continue;
nonZeroPools[nonZeroPoolsCount] = pool_;
nonZeroWeights[nonZeroPoolsCount] = currentWeight;
nonZeroPoolsCount++;
}
uint256 totalWeight;
for (uint256 i; i < nonZeroPoolsCount; i++) {
address pool_ = nonZeroPools[i];
uint256 newWeight_ = nonZeroWeights[i].mulDown(scaleUp_);
// ensure that the sum of the weights is 1 despite potential rounding errors
if (i == nonZeroPoolsCount - 1) {
newWeight_ = ScaledMath.ONE - totalWeight;
}
totalWeight += newWeight_;
weights.set(pool_, newWeight_);
emit NewWeight(pool_, newWeight_);
}
}
}// SPDX-License-Identifier: GPL-3.0-or-later
pragma solidity 0.8.17;
import "IConicPoolWeightManagement.sol";
interface IConicPoolWeightManager is IConicPoolWeightManagement {
function getDepositPool(
uint256 totalUnderlying_,
uint256[] memory allocatedPerPool,
uint256 maxDeviation
) external view returns (uint256 poolIndex, uint256 maxDepositAmount);
function getWithdrawPool(
uint256 totalUnderlying_,
uint256[] memory allocatedPerPool,
uint256 maxDeviation
) external view returns (uint256 withdrawPoolIndex, uint256 maxWithdrawalAmount);
function computeTotalDeviation(
uint256 allocatedUnderlying_,
uint256[] memory perPoolAllocations_
) external view returns (uint256);
function isBalanced(
uint256[] memory allocatedPerPool_,
uint256 totalAllocated_,
uint256 maxDeviation
) external view returns (bool);
}// SPDX-License-Identifier: GPL-3.0-or-later
pragma solidity 0.8.17;
library ArrayExtensions {
function copy(uint256[] memory array) internal pure returns (uint256[] memory) {
uint256[] memory copy_ = new uint256[](array.length);
for (uint256 i = 0; i < array.length; i++) {
copy_[i] = array[i];
}
return copy_;
}
function concat(
address[] memory a,
address[] memory b
) internal pure returns (address[] memory result) {
result = new address[](a.length + b.length);
for (uint256 i; i < a.length; i++) result[i] = a[i];
for (uint256 i; i < b.length; i++) result[i + a.length] = b[i];
}
function includes(address[] memory array, address element) internal pure returns (bool) {
return _includes(array, element, array.length);
}
function _includes(
address[] memory array,
address element,
uint256 until
) internal pure returns (bool) {
for (uint256 i; i < until; i++) {
if (array[i] == element) return true;
}
return false;
}
function removeDuplicates(address[] memory array) internal pure returns (address[] memory) {
address[] memory unique = new address[](array.length);
uint256 j;
for (uint256 i; i < array.length; i++) {
if (!_includes(unique, array[i], j)) {
unique[j++] = array[i];
}
}
return trim(unique, j);
}
function trim(
address[] memory array,
uint256 length
) internal pure returns (address[] memory trimmed) {
trimmed = new address[](length);
for (uint256 i; i < length; i++) trimmed[i] = array[i];
}
}{
"evmVersion": "london",
"optimizer": {
"enabled": true,
"runs": 200
},
"libraries": {
"ConicEthPool.sol": {}
},
"outputSelection": {
"*": {
"*": [
"evm.bytecode",
"evm.deployedBytecode",
"devdoc",
"userdoc",
"metadata",
"abi"
]
}
}
}Contract Security Audit
- No Contract Security Audit Submitted- Submit Audit Here
Contract ABI
API[{"inputs":[{"internalType":"address","name":"_underlying","type":"address"},{"internalType":"contract IRewardManager","name":"_rewardManager","type":"address"},{"internalType":"address","name":"_controller","type":"address"},{"internalType":"string","name":"_lpTokenName","type":"string"},{"internalType":"string","name":"_symbol","type":"string"},{"internalType":"address","name":"_cvx","type":"address"},{"internalType":"address","name":"_crv","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint256","name":"claimedCrv","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"claimedCvx","type":"uint256"}],"name":"ClaimedRewards","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"curvePool_","type":"address"}],"name":"CurvePoolAdded","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"curvePool_","type":"address"}],"name":"CurvePoolRemoved","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint256","name":"newThreshold","type":"uint256"}],"name":"DepegThresholdUpdated","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"sender","type":"address"},{"indexed":true,"internalType":"address","name":"receiver","type":"address"},{"indexed":false,"internalType":"uint256","name":"depositedAmount","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"lpReceived","type":"uint256"}],"name":"Deposit","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint256","name":"factor","type":"uint256"}],"name":"EmergencyRebalancingRewardFactorUpdated","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"curvePool_","type":"address"}],"name":"HandledDepeggedCurvePool","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"curvePool_","type":"address"},{"indexed":false,"internalType":"uint256","name":"pid_","type":"uint256"}],"name":"HandledInvalidConvexPid","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint256","name":"newMaxDeviation","type":"uint256"}],"name":"MaxDeviationUpdated","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint256","name":"newRatio","type":"uint256"}],"name":"NewMaxIdleCurveLpRatio","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"curvePool","type":"address"},{"indexed":false,"internalType":"uint256","name":"newWeight","type":"uint256"}],"name":"NewWeight","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"previousOwner","type":"address"},{"indexed":true,"internalType":"address","name":"newOwner","type":"address"}],"name":"OwnershipTransferred","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint256","name":"pauseDuration","type":"uint256"}],"name":"PauseDurationSet","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint256","name":"pausedUntil","type":"uint256"}],"name":"Paused","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"bool","name":"enabled","type":"bool"}],"name":"RebalancingRewardsEnabledSet","type":"event"},{"anonymous":false,"inputs":[],"name":"Shutdown","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"account","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"}],"name":"Withdraw","type":"event"},{"inputs":[{"internalType":"address","name":"_pool","type":"address"}],"name":"addPool","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"allPools","outputs":[{"internalType":"address[]","name":"","type":"address[]"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"cachedTotalUnderlying","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"computeTotalDeviation","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"controller","outputs":[{"internalType":"contract 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IRewardManager","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"runSanityChecks","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"factor_","type":"uint256"}],"name":"setEmergencyRebalancingRewardFactor","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"maxDeviation_","type":"uint256"}],"name":"setMaxDeviation","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"maxIdleCurveLpRatio_","type":"uint256"}],"name":"setMaxIdleCurveLpRatio","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_pauseDuration","type":"uint256"}],"name":"setPauseDuration","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bool","name":"enabled","type":"bool"}],"name":"setRebalancingRewardsEnabled","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"shutdownPool","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"totalDeviationAfterWeightUpdate","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalUnderlying","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"underlying","outputs":[{"internalType":"contract IERC20Metadata","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"conicLpAmount","type":"uint256"},{"internalType":"uint256","name":"minUnderlyingReceived","type":"uint256"}],"name":"unstakeAndWithdraw","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"conicLpAmount","type":"uint256"},{"internalType":"uint256","name":"minUnderlyingReceived","type":"uint256"},{"internalType":"address","name":"to","type":"address"}],"name":"unstakeAndWithdraw","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"newDepegThreshold_","type":"uint256"}],"name":"updateDepegThreshold","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"token","type":"address"},{"internalType":"bool","name":"approved","type":"bool"}],"name":"updateRewardSpendingApproval","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"components":[{"internalType":"address","name":"poolAddress","type":"address"},{"internalType":"uint256","name":"weight","type":"uint256"}],"internalType":"struct IConicPoolWeightManagement.PoolWeight[]","name":"poolWeights","type":"tuple[]"}],"name":"updateWeights","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"usdExchangeRate","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"weightManager","outputs":[{"internalType":"contract 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Constructor Arguments (ABI-Encoded and is the last bytes of the Contract Creation Code above)
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
-----Decoded View---------------
Arg [0] : _underlying (address): 0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2
Arg [1] : _rewardManager (address): 0x71e1829c1f45e8a02931A4721719b8cD2FD1C558
Arg [2] : _controller (address): 0x2790EC478f150a98F5D96755601a26403DF57EaE
Arg [3] : _lpTokenName (string): Conic ETH
Arg [4] : _symbol (string): cncETH
Arg [5] : _cvx (address): 0x4e3FBD56CD56c3e72c1403e103b45Db9da5B9D2B
Arg [6] : _crv (address): 0xD533a949740bb3306d119CC777fa900bA034cd52
-----Encoded View---------------
11 Constructor Arguments found :
Arg [0] : 000000000000000000000000c02aaa39b223fe8d0a0e5c4f27ead9083c756cc2
Arg [1] : 00000000000000000000000071e1829c1f45e8a02931a4721719b8cd2fd1c558
Arg [2] : 0000000000000000000000002790ec478f150a98f5d96755601a26403df57eae
Arg [3] : 00000000000000000000000000000000000000000000000000000000000000e0
Arg [4] : 0000000000000000000000000000000000000000000000000000000000000120
Arg [5] : 0000000000000000000000004e3fbd56cd56c3e72c1403e103b45db9da5b9d2b
Arg [6] : 000000000000000000000000d533a949740bb3306d119cc777fa900ba034cd52
Arg [7] : 0000000000000000000000000000000000000000000000000000000000000009
Arg [8] : 436f6e6963204554480000000000000000000000000000000000000000000000
Arg [9] : 0000000000000000000000000000000000000000000000000000000000000006
Arg [10] : 636e634554480000000000000000000000000000000000000000000000000000
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Net Worth in USD
$2,364.82
Net Worth in ETH
0.712468
Token Allocations
CRV
49.11%
WSTETH
35.67%
WETH
11.91%
Others
3.32%
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.