{"sources":{"src/contracts/facilitators/gsm/GsmWithHyFiPool.sol":{"content":"// SPDX-License-Identifier: MIT\npragma solidity ^0.8.10;\n\nimport {IERC20} from '@aave/core-v3/contracts/dependencies/openzeppelin/contracts/IERC20.sol';\nimport {GPv2SafeERC20} from '@aave/core-v3/contracts/dependencies/gnosis/contracts/GPv2SafeERC20.sol';\nimport {IPool} from '@aave/core-v3/contracts/interfaces/IPool.sol';\nimport {IPoolAddressesProvider} from '@aave/core-v3/contracts/interfaces/IPoolAddressesProvider.sol';\nimport {IAToken} from '@aave/core-v3/contracts/interfaces/IAToken.sol';\nimport {WadRayMath} from '@aave/core-v3/contracts/protocol/libraries/math/WadRayMath.sol';\nimport {IUsdxlToken} from '../../usdxl/interfaces/IUsdxlToken.sol';\nimport {SafeCast} from '@openzeppelin/contracts/utils/math/SafeCast.sol';\nimport {ProxyAdmin} from '@openzeppelin/contracts/proxy/transparent/ProxyAdmin.sol';\nimport {TransparentUpgradeableProxy} from '@openzeppelin/contracts/proxy/transparent/TransparentUpgradeableProxy.sol';\nimport {Gsm} from './Gsm.sol';\n\n/**\n * @title GsmWithHyFiPool\n * @author Last Labs\n * @notice USDXL Stability Module with HyFi Pool integration. It provides buy/sell facilities to go to/from an underlying asset to/from USDXL.\n * @dev To be covered by a proxy contract. This implementation deposits underlying assets into HyFi pools for yield generation.\n */\ncontract GsmWithHyFiPool is Gsm {\n using GPv2SafeERC20 for IERC20;\n using SafeCast for uint256;\n using WadRayMath for uint256;\n \n // HyFi Pool integration\n IPool public immutable HYFI_POOL;\n IAToken public immutable HYTOKEN;\n IPoolAddressesProvider public immutable HYFI_ADDRESSES_PROVIDER;\n\n // Track total deposited amount in HyFi Pool\n uint256 public totalDepositedInHyFiPool;\n\n event PoolDeposit(uint256 amount, uint256 hyTokenBalance);\n event PoolWithdraw(uint256 amount, uint256 hyTokenBalance);\n event InterestHarvested(address indexed admin, uint256 amount);\n event BuyHyAsset(address indexed originator, address indexed receiver, uint256 amount, uint256 ghoSold, uint256 fee);\n\n /**\n * @dev Constructor\n * @param usdxlToken The address of the GHO token contract\n * @param underlyingAsset The address of the collateral asset\n * @param priceStrategy The address of the price strategy\n * @param hyfiAddressesProvider The address of the HyFi addresses provider\n */\n constructor(\n address usdxlToken,\n address underlyingAsset,\n address priceStrategy,\n address hyfiAddressesProvider\n ) Gsm(usdxlToken, underlyingAsset, priceStrategy) {\n require(hyfiAddressesProvider != address(0), 'ZERO_ADDRESS_NOT_VALID');\n\n HYFI_ADDRESSES_PROVIDER = IPoolAddressesProvider(hyfiAddressesProvider);\n HYFI_POOL = IPool(HYFI_ADDRESSES_PROVIDER.getPool());\n \n // Get the corresponding hyToken for the underlying asset\n HYTOKEN = IAToken(HYFI_POOL.getReserveData(underlyingAsset).aTokenAddress);\n }\n\n /**\n * @notice GSM initializer\n * @param admin The address of the default admin role\n * @param usdxlTreasury The address of the GHO treasury\n * @param exposureCap Maximum amount of user-supplied underlying asset in GSM\n */\n function initialize(\n address admin,\n address usdxlTreasury,\n uint128 exposureCap\n ) public override initializer {\n if (_usdxlTreasury == address(0)) {\n super.initialize(admin, usdxlTreasury, exposureCap);\n } else {\n // Migrate existing balance to HyFi Pool\n _migrateToHyFiPool();\n }\n }\n\n /**\n * @notice Withdraw interest earned from HyFi Pool\n * @dev Only admin can withdraw interest\n */\n function harvestInterest() external onlyRole(DEFAULT_ADMIN_ROLE) {\n uint256 harvestAmount = getHarvestableUnderlyingBalance();\n require(harvestAmount > 0, 'NO_INTEREST_TO_HARVEST');\n\n // Withdraw from HyFi Pool\n HYFI_POOL.withdraw(UNDERLYING_ASSET, harvestAmount, address(this));\n\n // Transfer to admin\n IERC20(UNDERLYING_ASSET).safeTransfer(_usdxlTreasury, harvestAmount);\n\n emit InterestHarvested(msg.sender, harvestAmount);\n }\n\n function emergencyPoolDeposit() external onlyRole(DEFAULT_ADMIN_ROLE) {\n uint256 amount = IERC20(UNDERLYING_ASSET).balanceOf(address(this));\n IERC20(UNDERLYING_ASSET).approve(address(HYFI_POOL), amount);\n HYFI_POOL.deposit(UNDERLYING_ASSET, amount, address(this), 0);\n totalDepositedInHyFiPool += amount;\n\n emit PoolDeposit(amount, HYTOKEN.balanceOf(address(this)));\n }\n\n function emergencyPoolWithdraw() external onlyRole(DEFAULT_ADMIN_ROLE) {\n HYFI_POOL.withdraw(UNDERLYING_ASSET, totalDepositedInHyFiPool, address(this));\n totalDepositedInHyFiPool = 0;\n\n emit PoolWithdraw(totalDepositedInHyFiPool, HYTOKEN.balanceOf(address(this)));\n }\n\n /**\n * @notice Update the current exposure\n * @dev Sweeps in underlying tokens transferred directly to the GSM\n */\n function updateCurrentExposure() external onlyRole(DEFAULT_ADMIN_ROLE) {\n _currentExposure = uint128(getTotalUnderlying());\n }\n\n function getHarvestableUnderlyingBalance() public view returns (uint256) {\n return HYTOKEN.balanceOf(address(this)) - totalDepositedInHyFiPool;\n }\n\n function getTotalUnderlying() public view returns (uint256) {\n return IERC20(UNDERLYING_ASSET).balanceOf(address(this)) + totalDepositedInHyFiPool;\n }\n\n function getAvailableUnderlying() public view returns (uint256) {\n return IERC20(UNDERLYING_ASSET).balanceOf(address(this)) + getHyFiPoolAvailableLiquidity();\n }\n\n function getAvailableUnderlyingViaHyAsset() public view returns (uint256) {\n return IERC20(HYTOKEN).balanceOf(address(this));\n }\n\n /**\n * @notice Get the actual available liquidity in the hyToken contract for the underlying asset\n * @return The available liquidity in the hyToken contract\n */\n function getHyFiPoolAvailableLiquidity() public view returns (uint256) {\n uint256 underlyingHyTokenBalance = IERC20(UNDERLYING_ASSET).balanceOf(address(HYTOKEN));\n if (underlyingHyTokenBalance >= totalDepositedInHyFiPool) {\n return totalDepositedInHyFiPool;\n } else {\n return underlyingHyTokenBalance;\n }\n }\n\n /// @inheritdoc Gsm\n function GSM_REVISION() public pure virtual override returns (uint256) {\n return 2; // Incremented for HyFi Pool integration\n }\n\n function getBuyLiquidity() public view returns (uint256 underlying, uint256 underlyingViaHyAsset) {\n return (getAvailableUnderlying(), getAvailableUnderlyingViaHyAsset());\n }\n\n function buyHyAsset(\n uint256 minAmount,\n address receiver\n ) external notFrozen notSeized returns (uint256, uint256) {\n return _buyHyAsset(msg.sender, minAmount, receiver);\n }\n\n /**\n * @dev Emergency function to rescue stuck tokens\n * @param tokens The tokens to rescue\n * @param to The address to send the tokens to\n */\n function rescueTokens(address[] memory tokens, address to) external onlyRole(DEFAULT_ADMIN_ROLE) {\n require(to != address(0), 'INVALID_TO');\n \n for (uint256 i = 0; i < tokens.length; i++) {\n address token = tokens[i];\n if (token == address(0)) {\n uint256 balance = address(this).balance;\n if (balance > 0) {\n (bool success, ) = to.call{value: balance}('');\n require(success, 'ETH_TRANSFER_FAILED');\n }\n } else {\n uint256 balance = IERC20(token).balanceOf(address(this));\n if (balance > 0) {\n IERC20(token).safeTransfer(to, balance);\n }\n }\n }\n }\n\n function _buyHyAsset(\n address originator,\n uint256 minAmount,\n address receiver\n ) internal returns (uint256, uint256) {\n (\n uint256 assetAmount,\n uint256 ghoSold,\n uint256 grossAmount,\n uint256 fee\n ) = _calculateGhoAmountForBuyAsset(minAmount);\n\n _beforeBuyHyAsset(originator, assetAmount, receiver);\n\n require(assetAmount > 0, 'INVALID_AMOUNT');\n require(_currentExposure >= assetAmount, 'INSUFFICIENT_AVAILABLE_EXOGENOUS_ASSET_LIQUIDITY');\n\n _currentExposure -= uint128(assetAmount);\n _accruedFees += fee.toUint128();\n IUsdxlToken(USDXL_TOKEN).transferFrom(originator, address(this), ghoSold);\n IUsdxlToken(USDXL_TOKEN).burn(grossAmount);\n IERC20(HYTOKEN).safeTransfer(receiver, assetAmount);\n\n _afterBuyHyAsset(originator, assetAmount, receiver);\n \n emit BuyHyAsset(originator, receiver, assetAmount, ghoSold, fee);\n return (assetAmount, ghoSold);\n }\n\n function _beforeBuyHyAsset(address /*originator*/, uint256 amount, address /*receiver*/) internal virtual{\n require(amount <= getAvailableUnderlyingViaHyAsset(), 'INSUFFICIENT_LIQUIDITY');\n totalDepositedInHyFiPool -= amount;\n }\n\n function _afterBuyHyAsset(address /*originator*/, uint256 amount, address /*receiver*/) internal virtual {}\n\n /**\n * @dev Hook that is called before `buyAsset`.\n * @dev This implementation handles HyFi Pool withdrawal logic\n * @param amount The amount of the underlying asset desired for purchase\n */\n function _beforeBuyAsset(address /*originator*/, uint256 amount, address /*receiver*/) internal override { \n // Check available liquidity (including HyFi Pool deposits)\n require(amount <= getAvailableUnderlying(), 'INSUFFICIENT_LIQUIDITY');\n\n uint256 currentBalance = IERC20(UNDERLYING_ASSET).balanceOf(address(this));\n\n if (currentBalance < amount) {\n uint256 amountToWithdraw = amount - currentBalance;\n totalDepositedInHyFiPool -= amount;\n HYFI_POOL.withdraw(UNDERLYING_ASSET, amountToWithdraw, address(this));\n } \n }\n\n /**\n * @dev Hook that is called after `sellAsset`.\n * @dev This implementation handles HyFi Pool deposit logic\n * @param amount The amount of the underlying asset desired to sell\n */\n function _afterSellAsset(address /*originator*/, uint256 amount, address /*receiver*/) internal override {\n // Deposit to HyFi Pool for yield generation\n IERC20(UNDERLYING_ASSET).approve(address(HYFI_POOL), amount);\n HYFI_POOL.deposit(UNDERLYING_ASSET, amount, address(this), 0);\n totalDepositedInHyFiPool += amount;\n }\n\n /**\n * @notice Migrate existing USDT0 balance to HyFi Pool\n * @dev This function should be called during the upgrade process\n */\n function _migrateToHyFiPool() internal {\n uint256 balance = IERC20(UNDERLYING_ASSET).balanceOf(address(this));\n require(balance > 0, 'NO_BALANCE_TO_MIGRATE');\n\n // Approve HyFi pool to spend underlying asset\n IERC20(UNDERLYING_ASSET).approve(address(HYFI_POOL), balance);\n\n // Deposit into HyFi Pool\n HYFI_POOL.deposit(UNDERLYING_ASSET, balance, address(this), 0);\n\n totalDepositedInHyFiPool += balance;\n\n emit PoolDeposit(balance, HYTOKEN.balanceOf(address(this)));\n }\n}\n"},"lib/hypurrfi-deployments/lib/aave-v3-core/contracts/dependencies/openzeppelin/contracts/IERC20.sol":{"content":"// SPDX-License-Identifier: AGPL-3.0\npragma solidity ^0.8.0;\n\n/**\n * @dev Interface of the ERC20 standard as defined in the EIP.\n */\ninterface IERC20 {\n /**\n * @dev Returns the amount of tokens in existence.\n */\n function totalSupply() external view returns (uint256);\n\n /**\n * @dev Returns the amount of tokens owned by `account`.\n */\n function balanceOf(address account) external view returns (uint256);\n\n /**\n * @dev Moves `amount` tokens from the caller's account to `recipient`.\n *\n * Returns a boolean value indicating whether the operation succeeded.\n *\n * Emits a {Transfer} event.\n */\n function transfer(address recipient, uint256 amount) external returns (bool);\n\n /**\n * @dev Returns the remaining number of tokens that `spender` will be\n * allowed to spend on behalf of `owner` through {transferFrom}. This is\n * zero by default.\n *\n * This value changes when {approve} or {transferFrom} are called.\n */\n function allowance(address owner, address spender) external view returns (uint256);\n\n /**\n * @dev Sets `amount` as the allowance of `spender` over the caller's tokens.\n *\n * Returns a boolean value indicating whether the operation succeeded.\n *\n * IMPORTANT: Beware that changing an allowance with this method brings the risk\n * that someone may use both the old and the new allowance by unfortunate\n * transaction ordering. One possible solution to mitigate this race\n * condition is to first reduce the spender's allowance to 0 and set the\n * desired value afterwards:\n * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729\n *\n * Emits an {Approval} event.\n */\n function approve(address spender, uint256 amount) external returns (bool);\n\n /**\n * @dev Moves `amount` tokens from `sender` to `recipient` using the\n * allowance mechanism. `amount` is then deducted from the caller's\n * allowance.\n *\n * Returns a boolean value indicating whether the operation succeeded.\n *\n * Emits a {Transfer} event.\n */\n function transferFrom(address sender, address recipient, uint256 amount) external returns (bool);\n\n /**\n * @dev Emitted when `value` tokens are moved from one account (`from`) to\n * another (`to`).\n *\n * Note that `value` may be zero.\n */\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n /**\n * @dev Emitted when the allowance of a `spender` for an `owner` is set by\n * a call to {approve}. `value` is the new allowance.\n */\n event Approval(address indexed owner, address indexed spender, uint256 value);\n}\n"},"lib/hypurrfi-deployments/lib/aave-v3-core/contracts/dependencies/gnosis/contracts/GPv2SafeERC20.sol":{"content":"// SPDX-License-Identifier: LGPL-3.0-or-later\npragma solidity 0.8.10;\n\nimport {IERC20} from '../../openzeppelin/contracts/IERC20.sol';\n\n/// @title Gnosis Protocol v2 Safe ERC20 Transfer Library\n/// @author Gnosis Developers\n/// @dev Gas-efficient version of Openzeppelin's SafeERC20 contract.\nlibrary GPv2SafeERC20 {\n /// @dev Wrapper around a call to the ERC20 function `transfer` that reverts\n /// also when the token returns `false`.\n function safeTransfer(IERC20 token, address to, uint256 value) internal {\n bytes4 selector_ = token.transfer.selector;\n\n // solhint-disable-next-line no-inline-assembly\n assembly {\n let freeMemoryPointer := mload(0x40)\n mstore(freeMemoryPointer, selector_)\n mstore(add(freeMemoryPointer, 4), and(to, 0xffffffffffffffffffffffffffffffffffffffff))\n mstore(add(freeMemoryPointer, 36), value)\n\n if iszero(call(gas(), token, 0, freeMemoryPointer, 68, 0, 0)) {\n returndatacopy(0, 0, returndatasize())\n revert(0, returndatasize())\n }\n }\n\n require(getLastTransferResult(token), 'GPv2: failed transfer');\n }\n\n /// @dev Wrapper around a call to the ERC20 function `transferFrom` that\n /// reverts also when the token returns `false`.\n function safeTransferFrom(IERC20 token, address from, address to, uint256 value) internal {\n bytes4 selector_ = token.transferFrom.selector;\n\n // solhint-disable-next-line no-inline-assembly\n assembly {\n let freeMemoryPointer := mload(0x40)\n mstore(freeMemoryPointer, selector_)\n mstore(add(freeMemoryPointer, 4), and(from, 0xffffffffffffffffffffffffffffffffffffffff))\n mstore(add(freeMemoryPointer, 36), and(to, 0xffffffffffffffffffffffffffffffffffffffff))\n mstore(add(freeMemoryPointer, 68), value)\n\n if iszero(call(gas(), token, 0, freeMemoryPointer, 100, 0, 0)) {\n returndatacopy(0, 0, returndatasize())\n revert(0, returndatasize())\n }\n }\n\n require(getLastTransferResult(token), 'GPv2: failed transferFrom');\n }\n\n /// @dev Verifies that the last return was a successful `transfer*` call.\n /// This is done by checking that the return data is either empty, or\n /// is a valid ABI encoded boolean.\n function getLastTransferResult(IERC20 token) private view returns (bool success) {\n // NOTE: Inspecting previous return data requires assembly. Note that\n // we write the return data to memory 0 in the case where the return\n // data size is 32, this is OK since the first 64 bytes of memory are\n // reserved by Solidy as a scratch space that can be used within\n // assembly blocks.\n // \n // solhint-disable-next-line no-inline-assembly\n assembly {\n /// @dev Revert with an ABI encoded Solidity error with a message\n /// that fits into 32-bytes.\n ///\n /// An ABI encoded Solidity error has the following memory layout:\n ///\n /// ------------+----------------------------------\n /// byte range | value\n /// ------------+----------------------------------\n /// 0x00..0x04 | selector(\"Error(string)\")\n /// 0x04..0x24 | string offset (always 0x20)\n /// 0x24..0x44 | string length\n /// 0x44..0x64 | string value, padded to 32-bytes\n function revertWithMessage(length, message) {\n mstore(0x00, '\\x08\\xc3\\x79\\xa0')\n mstore(0x04, 0x20)\n mstore(0x24, length)\n mstore(0x44, message)\n revert(0x00, 0x64)\n }\n\n switch returndatasize()\n // Non-standard ERC20 transfer without return.\n case 0 {\n // NOTE: When the return data size is 0, verify that there\n // is code at the address. This is done in order to maintain\n // compatibility with Solidity calling conventions.\n // \n if iszero(extcodesize(token)) {\n revertWithMessage(20, 'GPv2: not a contract')\n }\n\n success := 1\n }\n // Standard ERC20 transfer returning boolean success value.\n case 32 {\n returndatacopy(0, 0, returndatasize())\n\n // NOTE: For ABI encoding v1, any non-zero value is accepted\n // as `true` for a boolean. In order to stay compatible with\n // OpenZeppelin's `SafeERC20` library which is known to work\n // with the existing ERC20 implementation we care about,\n // make sure we return success for any non-zero return value\n // from the `transfer*` call.\n success := iszero(iszero(mload(0)))\n }\n default {\n revertWithMessage(31, 'GPv2: malformed transfer result')\n }\n }\n }\n}\n"},"lib/hypurrfi-deployments/lib/aave-v3-core/contracts/interfaces/IPool.sol":{"content":"// SPDX-License-Identifier: AGPL-3.0\npragma solidity ^0.8.0;\n\nimport {IPoolAddressesProvider} from './IPoolAddressesProvider.sol';\nimport {DataTypes} from '../protocol/libraries/types/DataTypes.sol';\n\n/**\n * @title IPool\n * @author Aave\n * @notice Defines the basic interface for an Aave Pool.\n */\ninterface IPool {\n /**\n * @dev Emitted on mintUnbacked()\n * @param reserve The address of the underlying asset of the reserve\n * @param user The address initiating the supply\n * @param onBehalfOf The beneficiary of the supplied assets, receiving the aTokens\n * @param amount The amount of supplied assets\n * @param referralCode The referral code used\n */\n event MintUnbacked(\n address indexed reserve,\n address user,\n address indexed onBehalfOf,\n uint256 amount,\n uint16 indexed referralCode\n );\n\n /**\n * @dev Emitted on backUnbacked()\n * @param reserve The address of the underlying asset of the reserve\n * @param backer The address paying for the backing\n * @param amount The amount added as backing\n * @param fee The amount paid in fees\n */\n event BackUnbacked(address indexed reserve, address indexed backer, uint256 amount, uint256 fee);\n\n /**\n * @dev Emitted on supply()\n * @param reserve The address of the underlying asset of the reserve\n * @param user The address initiating the supply\n * @param onBehalfOf The beneficiary of the supply, receiving the aTokens\n * @param amount The amount supplied\n * @param referralCode The referral code used\n */\n event Supply(\n address indexed reserve,\n address user,\n address indexed onBehalfOf,\n uint256 amount,\n uint16 indexed referralCode\n );\n\n /**\n * @dev Emitted on withdraw()\n * @param reserve The address of the underlying asset being withdrawn\n * @param user The address initiating the withdrawal, owner of aTokens\n * @param to The address that will receive the underlying\n * @param amount The amount to be withdrawn\n */\n event Withdraw(address indexed reserve, address indexed user, address indexed to, uint256 amount);\n\n /**\n * @dev Emitted on borrow() and flashLoan() when debt needs to be opened\n * @param reserve The address of the underlying asset being borrowed\n * @param user The address of the user initiating the borrow(), receiving the funds on borrow() or just\n * initiator of the transaction on flashLoan()\n * @param onBehalfOf The address that will be getting the debt\n * @param amount The amount borrowed out\n * @param interestRateMode The rate mode: 1 for Stable, 2 for Variable\n * @param borrowRate The numeric rate at which the user has borrowed, expressed in ray\n * @param referralCode The referral code used\n */\n event Borrow(\n address indexed reserve,\n address user,\n address indexed onBehalfOf,\n uint256 amount,\n DataTypes.InterestRateMode interestRateMode,\n uint256 borrowRate,\n uint16 indexed referralCode\n );\n\n /**\n * @dev Emitted on repay()\n * @param reserve The address of the underlying asset of the reserve\n * @param user The beneficiary of the repayment, getting his debt reduced\n * @param repayer The address of the user initiating the repay(), providing the funds\n * @param amount The amount repaid\n * @param useATokens True if the repayment is done using aTokens, `false` if done with underlying asset directly\n */\n event Repay(\n address indexed reserve,\n address indexed user,\n address indexed repayer,\n uint256 amount,\n bool useATokens\n );\n\n /**\n * @dev Emitted on swapBorrowRateMode()\n * @param reserve The address of the underlying asset of the reserve\n * @param user The address of the user swapping his rate mode\n * @param interestRateMode The current interest rate mode of the position being swapped: 1 for Stable, 2 for Variable\n */\n event SwapBorrowRateMode(\n address indexed reserve,\n address indexed user,\n DataTypes.InterestRateMode interestRateMode\n );\n\n /**\n * @dev Emitted on borrow(), repay() and liquidationCall() when using isolated assets\n * @param asset The address of the underlying asset of the reserve\n * @param totalDebt The total isolation mode debt for the reserve\n */\n event IsolationModeTotalDebtUpdated(address indexed asset, uint256 totalDebt);\n\n /**\n * @dev Emitted when the user selects a certain asset category for eMode\n * @param user The address of the user\n * @param categoryId The category id\n */\n event UserEModeSet(address indexed user, uint8 categoryId);\n\n /**\n * @dev Emitted on setUserUseReserveAsCollateral()\n * @param reserve The address of the underlying asset of the reserve\n * @param user The address of the user enabling the usage as collateral\n */\n event ReserveUsedAsCollateralEnabled(address indexed reserve, address indexed user);\n\n /**\n * @dev Emitted on setUserUseReserveAsCollateral()\n * @param reserve The address of the underlying asset of the reserve\n * @param user The address of the user enabling the usage as collateral\n */\n event ReserveUsedAsCollateralDisabled(address indexed reserve, address indexed user);\n\n /**\n * @dev Emitted on rebalanceStableBorrowRate()\n * @param reserve The address of the underlying asset of the reserve\n * @param user The address of the user for which the rebalance has been executed\n */\n event RebalanceStableBorrowRate(address indexed reserve, address indexed user);\n\n /**\n * @dev Emitted on flashLoan()\n * @param target The address of the flash loan receiver contract\n * @param initiator The address initiating the flash loan\n * @param asset The address of the asset being flash borrowed\n * @param amount The amount flash borrowed\n * @param interestRateMode The flashloan mode: 0 for regular flashloan, 1 for Stable debt, 2 for Variable debt\n * @param premium The fee flash borrowed\n * @param referralCode The referral code used\n */\n event FlashLoan(\n address indexed target,\n address initiator,\n address indexed asset,\n uint256 amount,\n DataTypes.InterestRateMode interestRateMode,\n uint256 premium,\n uint16 indexed referralCode\n );\n\n /**\n * @dev Emitted when a borrower is liquidated.\n * @param collateralAsset The address of the underlying asset used as collateral, to receive as result of the liquidation\n * @param debtAsset The address of the underlying borrowed asset to be repaid with the liquidation\n * @param user The address of the borrower getting liquidated\n * @param debtToCover The debt amount of borrowed `asset` the liquidator wants to cover\n * @param liquidatedCollateralAmount The amount of collateral received by the liquidator\n * @param liquidator The address of the liquidator\n * @param receiveAToken True if the liquidators wants to receive the collateral aTokens, `false` if he wants\n * to receive the underlying collateral asset directly\n */\n event LiquidationCall(\n address indexed collateralAsset,\n address indexed debtAsset,\n address indexed user,\n uint256 debtToCover,\n uint256 liquidatedCollateralAmount,\n address liquidator,\n bool receiveAToken\n );\n\n /**\n * @dev Emitted when the state of a reserve is updated.\n * @param reserve The address of the underlying asset of the reserve\n * @param liquidityRate The next liquidity rate\n * @param stableBorrowRate The next stable borrow rate\n * @param variableBorrowRate The next variable borrow rate\n * @param liquidityIndex The next liquidity index\n * @param variableBorrowIndex The next variable borrow index\n */\n event ReserveDataUpdated(\n address indexed reserve,\n uint256 liquidityRate,\n uint256 stableBorrowRate,\n uint256 variableBorrowRate,\n uint256 liquidityIndex,\n uint256 variableBorrowIndex\n );\n\n /**\n * @dev Emitted when the protocol treasury receives minted aTokens from the accrued interest.\n * @param reserve The address of the reserve\n * @param amountMinted The amount minted to the treasury\n */\n event MintedToTreasury(address indexed reserve, uint256 amountMinted);\n\n /**\n * @notice Mints an `amount` of aTokens to the `onBehalfOf`\n * @param asset The address of the underlying asset to mint\n * @param amount The amount to mint\n * @param onBehalfOf The address that will receive the aTokens\n * @param referralCode Code used to register the integrator originating the operation, for potential rewards.\n * 0 if the action is executed directly by the user, without any middle-man\n */\n function mintUnbacked(\n address asset,\n uint256 amount,\n address onBehalfOf,\n uint16 referralCode\n ) external;\n\n /**\n * @notice Back the current unbacked underlying with `amount` and pay `fee`.\n * @param asset The address of the underlying asset to back\n * @param amount The amount to back\n * @param fee The amount paid in fees\n * @return The backed amount\n */\n function backUnbacked(address asset, uint256 amount, uint256 fee) external returns (uint256);\n\n /**\n * @notice Supplies an `amount` of underlying asset into the reserve, receiving in return overlying aTokens.\n * - E.g. User supplies 100 USDC and gets in return 100 aUSDC\n * @param asset The address of the underlying asset to supply\n * @param amount The amount to be supplied\n * @param onBehalfOf The address that will receive the aTokens, same as msg.sender if the user\n * wants to receive them on his own wallet, or a different address if the beneficiary of aTokens\n * is a different wallet\n * @param referralCode Code used to register the integrator originating the operation, for potential rewards.\n * 0 if the action is executed directly by the user, without any middle-man\n */\n function supply(address asset, uint256 amount, address onBehalfOf, uint16 referralCode) external;\n\n /**\n * @notice Supply with transfer approval of asset to be supplied done via permit function\n * see: https://eips.ethereum.org/EIPS/eip-2612 and https://eips.ethereum.org/EIPS/eip-713\n * @param asset The address of the underlying asset to supply\n * @param amount The amount to be supplied\n * @param onBehalfOf The address that will receive the aTokens, same as msg.sender if the user\n * wants to receive them on his own wallet, or a different address if the beneficiary of aTokens\n * is a different wallet\n * @param deadline The deadline timestamp that the permit is valid\n * @param referralCode Code used to register the integrator originating the operation, for potential rewards.\n * 0 if the action is executed directly by the user, without any middle-man\n * @param permitV The V parameter of ERC712 permit sig\n * @param permitR The R parameter of ERC712 permit sig\n * @param permitS The S parameter of ERC712 permit sig\n */\n function supplyWithPermit(\n address asset,\n uint256 amount,\n address onBehalfOf,\n uint16 referralCode,\n uint256 deadline,\n uint8 permitV,\n bytes32 permitR,\n bytes32 permitS\n ) external;\n\n /**\n * @notice Withdraws an `amount` of underlying asset from the reserve, burning the equivalent aTokens owned\n * E.g. User has 100 aUSDC, calls withdraw() and receives 100 USDC, burning the 100 aUSDC\n * @param asset The address of the underlying asset to withdraw\n * @param amount The underlying amount to be withdrawn\n * - Send the value type(uint256).max in order to withdraw the whole aToken balance\n * @param to The address that will receive the underlying, same as msg.sender if the user\n * wants to receive it on his own wallet, or a different address if the beneficiary is a\n * different wallet\n * @return The final amount withdrawn\n */\n function withdraw(address asset, uint256 amount, address to) external returns (uint256);\n\n /**\n * @notice Allows users to borrow a specific `amount` of the reserve underlying asset, provided that the borrower\n * already supplied enough collateral, or he was given enough allowance by a credit delegator on the\n * corresponding debt token (StableDebtToken or VariableDebtToken)\n * - E.g. User borrows 100 USDC passing as `onBehalfOf` his own address, receiving the 100 USDC in his wallet\n * and 100 stable/variable debt tokens, depending on the `interestRateMode`\n * @param asset The address of the underlying asset to borrow\n * @param amount The amount to be borrowed\n * @param interestRateMode The interest rate mode at which the user wants to borrow: 1 for Stable, 2 for Variable\n * @param referralCode The code used to register the integrator originating the operation, for potential rewards.\n * 0 if the action is executed directly by the user, without any middle-man\n * @param onBehalfOf The address of the user who will receive the debt. Should be the address of the borrower itself\n * calling the function if he wants to borrow against his own collateral, or the address of the credit delegator\n * if he has been given credit delegation allowance\n */\n function borrow(\n address asset,\n uint256 amount,\n uint256 interestRateMode,\n uint16 referralCode,\n address onBehalfOf\n ) external;\n\n /**\n * @notice Repays a borrowed `amount` on a specific reserve, burning the equivalent debt tokens owned\n * - E.g. User repays 100 USDC, burning 100 variable/stable debt tokens of the `onBehalfOf` address\n * @param asset The address of the borrowed underlying asset previously borrowed\n * @param amount The amount to repay\n * - Send the value type(uint256).max in order to repay the whole debt for `asset` on the specific `debtMode`\n * @param interestRateMode The interest rate mode at of the debt the user wants to repay: 1 for Stable, 2 for Variable\n * @param onBehalfOf The address of the user who will get his debt reduced/removed. Should be the address of the\n * user calling the function if he wants to reduce/remove his own debt, or the address of any other\n * other borrower whose debt should be removed\n * @return The final amount repaid\n */\n function repay(\n address asset,\n uint256 amount,\n uint256 interestRateMode,\n address onBehalfOf\n ) external returns (uint256);\n\n /**\n * @notice Repay with transfer approval of asset to be repaid done via permit function\n * see: https://eips.ethereum.org/EIPS/eip-2612 and https://eips.ethereum.org/EIPS/eip-713\n * @param asset The address of the borrowed underlying asset previously borrowed\n * @param amount The amount to repay\n * - Send the value type(uint256).max in order to repay the whole debt for `asset` on the specific `debtMode`\n * @param interestRateMode The interest rate mode at of the debt the user wants to repay: 1 for Stable, 2 for Variable\n * @param onBehalfOf Address of the user who will get his debt reduced/removed. Should be the address of the\n * user calling the function if he wants to reduce/remove his own debt, or the address of any other\n * other borrower whose debt should be removed\n * @param deadline The deadline timestamp that the permit is valid\n * @param permitV The V parameter of ERC712 permit sig\n * @param permitR The R parameter of ERC712 permit sig\n * @param permitS The S parameter of ERC712 permit sig\n * @return The final amount repaid\n */\n function repayWithPermit(\n address asset,\n uint256 amount,\n uint256 interestRateMode,\n address onBehalfOf,\n uint256 deadline,\n uint8 permitV,\n bytes32 permitR,\n bytes32 permitS\n ) external returns (uint256);\n\n /**\n * @notice Repays a borrowed `amount` on a specific reserve using the reserve aTokens, burning the\n * equivalent debt tokens\n * - E.g. User repays 100 USDC using 100 aUSDC, burning 100 variable/stable debt tokens\n * @dev Passing uint256.max as amount will clean up any residual aToken dust balance, if the user aToken\n * balance is not enough to cover the whole debt\n * @param asset The address of the borrowed underlying asset previously borrowed\n * @param amount The amount to repay\n * - Send the value type(uint256).max in order to repay the whole debt for `asset` on the specific `debtMode`\n * @param interestRateMode The interest rate mode at of the debt the user wants to repay: 1 for Stable, 2 for Variable\n * @return The final amount repaid\n */\n function repayWithATokens(\n address asset,\n uint256 amount,\n uint256 interestRateMode\n ) external returns (uint256);\n\n /**\n * @notice Allows a borrower to swap his debt between stable and variable mode, or vice versa\n * @param asset The address of the underlying asset borrowed\n * @param interestRateMode The current interest rate mode of the position being swapped: 1 for Stable, 2 for Variable\n */\n function swapBorrowRateMode(address asset, uint256 interestRateMode) external;\n\n /**\n * @notice Rebalances the stable interest rate of a user to the current stable rate defined on the reserve.\n * - Users can be rebalanced if the following conditions are satisfied:\n * 1. Usage ratio is above 95%\n * 2. the current supply APY is below REBALANCE_UP_THRESHOLD * maxVariableBorrowRate, which means that too\n * much has been borrowed at a stable rate and suppliers are not earning enough\n * @param asset The address of the underlying asset borrowed\n * @param user The address of the user to be rebalanced\n */\n function rebalanceStableBorrowRate(address asset, address user) external;\n\n /**\n * @notice Allows suppliers to enable/disable a specific supplied asset as collateral\n * @param asset The address of the underlying asset supplied\n * @param useAsCollateral True if the user wants to use the supply as collateral, false otherwise\n */\n function setUserUseReserveAsCollateral(address asset, bool useAsCollateral) external;\n\n /**\n * @notice Function to liquidate a non-healthy position collateral-wise, with Health Factor below 1\n * - The caller (liquidator) covers `debtToCover` amount of debt of the user getting liquidated, and receives\n * a proportionally amount of the `collateralAsset` plus a bonus to cover market risk\n * @param collateralAsset The address of the underlying asset used as collateral, to receive as result of the liquidation\n * @param debtAsset The address of the underlying borrowed asset to be repaid with the liquidation\n * @param user The address of the borrower getting liquidated\n * @param debtToCover The debt amount of borrowed `asset` the liquidator wants to cover\n * @param receiveAToken True if the liquidators wants to receive the collateral aTokens, `false` if he wants\n * to receive the underlying collateral asset directly\n */\n function liquidationCall(\n address collateralAsset,\n address debtAsset,\n address user,\n uint256 debtToCover,\n bool receiveAToken\n ) external;\n\n /**\n * @notice Allows smartcontracts to access the liquidity of the pool within one transaction,\n * as long as the amount taken plus a fee is returned.\n * @dev IMPORTANT There are security concerns for developers of flashloan receiver contracts that must be kept\n * into consideration. For further details please visit https://docs.aave.com/developers/\n * @param receiverAddress The address of the contract receiving the funds, implementing IFlashLoanReceiver interface\n * @param assets The addresses of the assets being flash-borrowed\n * @param amounts The amounts of the assets being flash-borrowed\n * @param interestRateModes Types of the debt to open if the flash loan is not returned:\n * 0 -> Don't open any debt, just revert if funds can't be transferred from the receiver\n * 1 -> Open debt at stable rate for the value of the amount flash-borrowed to the `onBehalfOf` address\n * 2 -> Open debt at variable rate for the value of the amount flash-borrowed to the `onBehalfOf` address\n * @param onBehalfOf The address that will receive the debt in the case of using on `modes` 1 or 2\n * @param params Variadic packed params to pass to the receiver as extra information\n * @param referralCode The code used to register the integrator originating the operation, for potential rewards.\n * 0 if the action is executed directly by the user, without any middle-man\n */\n function flashLoan(\n address receiverAddress,\n address[] calldata assets,\n uint256[] calldata amounts,\n uint256[] calldata interestRateModes,\n address onBehalfOf,\n bytes calldata params,\n uint16 referralCode\n ) external;\n\n /**\n * @notice Allows smartcontracts to access the liquidity of the pool within one transaction,\n * as long as the amount taken plus a fee is returned.\n * @dev IMPORTANT There are security concerns for developers of flashloan receiver contracts that must be kept\n * into consideration. For further details please visit https://docs.aave.com/developers/\n * @param receiverAddress The address of the contract receiving the funds, implementing IFlashLoanSimpleReceiver interface\n * @param asset The address of the asset being flash-borrowed\n * @param amount The amount of the asset being flash-borrowed\n * @param params Variadic packed params to pass to the receiver as extra information\n * @param referralCode The code used to register the integrator originating the operation, for potential rewards.\n * 0 if the action is executed directly by the user, without any middle-man\n */\n function flashLoanSimple(\n address receiverAddress,\n address asset,\n uint256 amount,\n bytes calldata params,\n uint16 referralCode\n ) external;\n\n /**\n * @notice Returns the user account data across all the reserves\n * @param user The address of the user\n * @return totalCollateralBase The total collateral of the user in the base currency used by the price feed\n * @return totalDebtBase The total debt of the user in the base currency used by the price feed\n * @return availableBorrowsBase The borrowing power left of the user in the base currency used by the price feed\n * @return currentLiquidationThreshold The liquidation threshold of the user\n * @return ltv The loan to value of The user\n * @return healthFactor The current health factor of the user\n */\n function getUserAccountData(\n address user\n )\n external\n view\n returns (\n uint256 totalCollateralBase,\n uint256 totalDebtBase,\n uint256 availableBorrowsBase,\n uint256 currentLiquidationThreshold,\n uint256 ltv,\n uint256 healthFactor\n );\n\n /**\n * @notice Initializes a reserve, activating it, assigning an aToken and debt tokens and an\n * interest rate strategy\n * @dev Only callable by the PoolConfigurator contract\n * @param asset The address of the underlying asset of the reserve\n * @param aTokenAddress The address of the aToken that will be assigned to the reserve\n * @param stableDebtAddress The address of the StableDebtToken that will be assigned to the reserve\n * @param variableDebtAddress The address of the VariableDebtToken that will be assigned to the reserve\n * @param interestRateStrategyAddress The address of the interest rate strategy contract\n */\n function initReserve(\n address asset,\n address aTokenAddress,\n address stableDebtAddress,\n address variableDebtAddress,\n address interestRateStrategyAddress\n ) external;\n\n /**\n * @notice Drop a reserve\n * @dev Only callable by the PoolConfigurator contract\n * @param asset The address of the underlying asset of the reserve\n */\n function dropReserve(address asset) external;\n\n /**\n * @notice Updates the address of the interest rate strategy contract\n * @dev Only callable by the PoolConfigurator contract\n * @param asset The address of the underlying asset of the reserve\n * @param rateStrategyAddress The address of the interest rate strategy contract\n */\n function setReserveInterestRateStrategyAddress(\n address asset,\n address rateStrategyAddress\n ) external;\n\n /**\n * @notice Sets the configuration bitmap of the reserve as a whole\n * @dev Only callable by the PoolConfigurator contract\n * @param asset The address of the underlying asset of the reserve\n * @param configuration The new configuration bitmap\n */\n function setConfiguration(\n address asset,\n DataTypes.ReserveConfigurationMap calldata configuration\n ) external;\n\n /**\n * @notice Returns the configuration of the reserve\n * @param asset The address of the underlying asset of the reserve\n * @return The configuration of the reserve\n */\n function getConfiguration(\n address asset\n ) external view returns (DataTypes.ReserveConfigurationMap memory);\n\n /**\n * @notice Returns the configuration of the user across all the reserves\n * @param user The user address\n * @return The configuration of the user\n */\n function getUserConfiguration(\n address user\n ) external view returns (DataTypes.UserConfigurationMap memory);\n\n /**\n * @notice Returns the normalized income of the reserve\n * @param asset The address of the underlying asset of the reserve\n * @return The reserve's normalized income\n */\n function getReserveNormalizedIncome(address asset) external view returns (uint256);\n\n /**\n * @notice Returns the normalized variable debt per unit of asset\n * @dev WARNING: This function is intended to be used primarily by the protocol itself to get a\n * \"dynamic\" variable index based on time, current stored index and virtual rate at the current\n * moment (approx. a borrower would get if opening a position). This means that is always used in\n * combination with variable debt supply/balances.\n * If using this function externally, consider that is possible to have an increasing normalized\n * variable debt that is not equivalent to how the variable debt index would be updated in storage\n * (e.g. only updates with non-zero variable debt supply)\n * @param asset The address of the underlying asset of the reserve\n * @return The reserve normalized variable debt\n */\n function getReserveNormalizedVariableDebt(address asset) external view returns (uint256);\n\n /**\n * @notice Returns the state and configuration of the reserve\n * @param asset The address of the underlying asset of the reserve\n * @return The state and configuration data of the reserve\n */\n function getReserveData(address asset) external view returns (DataTypes.ReserveData memory);\n\n /**\n * @notice Validates and finalizes an aToken transfer\n * @dev Only callable by the overlying aToken of the `asset`\n * @param asset The address of the underlying asset of the aToken\n * @param from The user from which the aTokens are transferred\n * @param to The user receiving the aTokens\n * @param amount The amount being transferred/withdrawn\n * @param balanceFromBefore The aToken balance of the `from` user before the transfer\n * @param balanceToBefore The aToken balance of the `to` user before the transfer\n */\n function finalizeTransfer(\n address asset,\n address from,\n address to,\n uint256 amount,\n uint256 balanceFromBefore,\n uint256 balanceToBefore\n ) external;\n\n /**\n * @notice Returns the list of the underlying assets of all the initialized reserves\n * @dev It does not include dropped reserves\n * @return The addresses of the underlying assets of the initialized reserves\n */\n function getReservesList() external view returns (address[] memory);\n\n /**\n * @notice Returns the address of the underlying asset of a reserve by the reserve id as stored in the DataTypes.ReserveData struct\n * @param id The id of the reserve as stored in the DataTypes.ReserveData struct\n * @return The address of the reserve associated with id\n */\n function getReserveAddressById(uint16 id) external view returns (address);\n\n /**\n * @notice Returns the PoolAddressesProvider connected to this contract\n * @return The address of the PoolAddressesProvider\n */\n function ADDRESSES_PROVIDER() external view returns (IPoolAddressesProvider);\n\n /**\n * @notice Updates the protocol fee on the bridging\n * @param bridgeProtocolFee The part of the premium sent to the protocol treasury\n */\n function updateBridgeProtocolFee(uint256 bridgeProtocolFee) external;\n\n /**\n * @notice Updates flash loan premiums. Flash loan premium consists of two parts:\n * - A part is sent to aToken holders as extra, one time accumulated interest\n * - A part is collected by the protocol treasury\n * @dev The total premium is calculated on the total borrowed amount\n * @dev The premium to protocol is calculated on the total premium, being a percentage of `flashLoanPremiumTotal`\n * @dev Only callable by the PoolConfigurator contract\n * @param flashLoanPremiumTotal The total premium, expressed in bps\n * @param flashLoanPremiumToProtocol The part of the premium sent to the protocol treasury, expressed in bps\n */\n function updateFlashloanPremiums(\n uint128 flashLoanPremiumTotal,\n uint128 flashLoanPremiumToProtocol\n ) external;\n\n /**\n * @notice Configures a new category for the eMode.\n * @dev In eMode, the protocol allows very high borrowing power to borrow assets of the same category.\n * The category 0 is reserved as it's the default for volatile assets\n * @param id The id of the category\n * @param config The configuration of the category\n */\n function configureEModeCategory(uint8 id, DataTypes.EModeCategory memory config) external;\n\n /**\n * @notice Returns the data of an eMode category\n * @param id The id of the category\n * @return The configuration data of the category\n */\n function getEModeCategoryData(uint8 id) external view returns (DataTypes.EModeCategory memory);\n\n /**\n * @notice Allows a user to use the protocol in eMode\n * @param categoryId The id of the category\n */\n function setUserEMode(uint8 categoryId) external;\n\n /**\n * @notice Returns the eMode the user is using\n * @param user The address of the user\n * @return The eMode id\n */\n function getUserEMode(address user) external view returns (uint256);\n\n /**\n * @notice Resets the isolation mode total debt of the given asset to zero\n * @dev It requires the given asset has zero debt ceiling\n * @param asset The address of the underlying asset to reset the isolationModeTotalDebt\n */\n function resetIsolationModeTotalDebt(address asset) external;\n\n /**\n * @notice Returns the percentage of available liquidity that can be borrowed at once at stable rate\n * @return The percentage of available liquidity to borrow, expressed in bps\n */\n function MAX_STABLE_RATE_BORROW_SIZE_PERCENT() external view returns (uint256);\n\n /**\n * @notice Returns the total fee on flash loans\n * @return The total fee on flashloans\n */\n function FLASHLOAN_PREMIUM_TOTAL() external view returns (uint128);\n\n /**\n * @notice Returns the part of the bridge fees sent to protocol\n * @return The bridge fee sent to the protocol treasury\n */\n function BRIDGE_PROTOCOL_FEE() external view returns (uint256);\n\n /**\n * @notice Returns the part of the flashloan fees sent to protocol\n * @return The flashloan fee sent to the protocol treasury\n */\n function FLASHLOAN_PREMIUM_TO_PROTOCOL() external view returns (uint128);\n\n /**\n * @notice Returns the maximum number of reserves supported to be listed in this Pool\n * @return The maximum number of reserves supported\n */\n function MAX_NUMBER_RESERVES() external view returns (uint16);\n\n /**\n * @notice Mints the assets accrued through the reserve factor to the treasury in the form of aTokens\n * @param assets The list of reserves for which the minting needs to be executed\n */\n function mintToTreasury(address[] calldata assets) external;\n\n /**\n * @notice Rescue and transfer tokens locked in this contract\n * @param token The address of the token\n * @param to The address of the recipient\n * @param amount The amount of token to transfer\n */\n function rescueTokens(address token, address to, uint256 amount) external;\n\n /**\n * @notice Supplies an `amount` of underlying asset into the reserve, receiving in return overlying aTokens.\n * - E.g. User supplies 100 USDC and gets in return 100 aUSDC\n * @dev Deprecated: Use the `supply` function instead\n * @param asset The address of the underlying asset to supply\n * @param amount The amount to be supplied\n * @param onBehalfOf The address that will receive the aTokens, same as msg.sender if the user\n * wants to receive them on his own wallet, or a different address if the beneficiary of aTokens\n * is a different wallet\n * @param referralCode Code used to register the integrator originating the operation, for potential rewards.\n * 0 if the action is executed directly by the user, without any middle-man\n */\n function deposit(address asset, uint256 amount, address onBehalfOf, uint16 referralCode) external;\n}\n"},"lib/hypurrfi-deployments/lib/aave-v3-core/contracts/interfaces/IPoolAddressesProvider.sol":{"content":"// SPDX-License-Identifier: AGPL-3.0\npragma solidity ^0.8.0;\n\n/**\n * @title IPoolAddressesProvider\n * @author Aave\n * @notice Defines the basic interface for a Pool Addresses Provider.\n */\ninterface IPoolAddressesProvider {\n /**\n * @dev Emitted when the market identifier is updated.\n * @param oldMarketId The old id of the market\n * @param newMarketId The new id of the market\n */\n event MarketIdSet(string indexed oldMarketId, string indexed newMarketId);\n\n /**\n * @dev Emitted when the pool is updated.\n * @param oldAddress The old address of the Pool\n * @param newAddress The new address of the Pool\n */\n event PoolUpdated(address indexed oldAddress, address indexed newAddress);\n\n /**\n * @dev Emitted when the pool configurator is updated.\n * @param oldAddress The old address of the PoolConfigurator\n * @param newAddress The new address of the PoolConfigurator\n */\n event PoolConfiguratorUpdated(address indexed oldAddress, address indexed newAddress);\n\n /**\n * @dev Emitted when the price oracle is updated.\n * @param oldAddress The old address of the PriceOracle\n * @param newAddress The new address of the PriceOracle\n */\n event PriceOracleUpdated(address indexed oldAddress, address indexed newAddress);\n\n /**\n * @dev Emitted when the ACL manager is updated.\n * @param oldAddress The old address of the ACLManager\n * @param newAddress The new address of the ACLManager\n */\n event ACLManagerUpdated(address indexed oldAddress, address indexed newAddress);\n\n /**\n * @dev Emitted when the ACL admin is updated.\n * @param oldAddress The old address of the ACLAdmin\n * @param newAddress The new address of the ACLAdmin\n */\n event ACLAdminUpdated(address indexed oldAddress, address indexed newAddress);\n\n /**\n * @dev Emitted when the price oracle sentinel is updated.\n * @param oldAddress The old address of the PriceOracleSentinel\n * @param newAddress The new address of the PriceOracleSentinel\n */\n event PriceOracleSentinelUpdated(address indexed oldAddress, address indexed newAddress);\n\n /**\n * @dev Emitted when the pool data provider is updated.\n * @param oldAddress The old address of the PoolDataProvider\n * @param newAddress The new address of the PoolDataProvider\n */\n event PoolDataProviderUpdated(address indexed oldAddress, address indexed newAddress);\n\n /**\n * @dev Emitted when a new proxy is created.\n * @param id The identifier of the proxy\n * @param proxyAddress The address of the created proxy contract\n * @param implementationAddress The address of the implementation contract\n */\n event ProxyCreated(\n bytes32 indexed id,\n address indexed proxyAddress,\n address indexed implementationAddress\n );\n\n /**\n * @dev Emitted when a new non-proxied contract address is registered.\n * @param id The identifier of the contract\n * @param oldAddress The address of the old contract\n * @param newAddress The address of the new contract\n */\n event AddressSet(bytes32 indexed id, address indexed oldAddress, address indexed newAddress);\n\n /**\n * @dev Emitted when the implementation of the proxy registered with id is updated\n * @param id The identifier of the contract\n * @param proxyAddress The address of the proxy contract\n * @param oldImplementationAddress The address of the old implementation contract\n * @param newImplementationAddress The address of the new implementation contract\n */\n event AddressSetAsProxy(\n bytes32 indexed id,\n address indexed proxyAddress,\n address oldImplementationAddress,\n address indexed newImplementationAddress\n );\n\n /**\n * @notice Returns the id of the Aave market to which this contract points to.\n * @return The market id\n */\n function getMarketId() external view returns (string memory);\n\n /**\n * @notice Associates an id with a specific PoolAddressesProvider.\n * @dev This can be used to create an onchain registry of PoolAddressesProviders to\n * identify and validate multiple Aave markets.\n * @param newMarketId The market id\n */\n function setMarketId(string calldata newMarketId) external;\n\n /**\n * @notice Returns an address by its identifier.\n * @dev The returned address might be an EOA or a contract, potentially proxied\n * @dev It returns ZERO if there is no registered address with the given id\n * @param id The id\n * @return The address of the registered for the specified id\n */\n function getAddress(bytes32 id) external view returns (address);\n\n /**\n * @notice General function to update the implementation of a proxy registered with\n * certain `id`. If there is no proxy registered, it will instantiate one and\n * set as implementation the `newImplementationAddress`.\n * @dev IMPORTANT Use this function carefully, only for ids that don't have an explicit\n * setter function, in order to avoid unexpected consequences\n * @param id The id\n * @param newImplementationAddress The address of the new implementation\n */\n function setAddressAsProxy(bytes32 id, address newImplementationAddress) external;\n\n /**\n * @notice Sets an address for an id replacing the address saved in the addresses map.\n * @dev IMPORTANT Use this function carefully, as it will do a hard replacement\n * @param id The id\n * @param newAddress The address to set\n */\n function setAddress(bytes32 id, address newAddress) external;\n\n /**\n * @notice Returns the address of the Pool proxy.\n * @return The Pool proxy address\n */\n function getPool() external view returns (address);\n\n /**\n * @notice Updates the implementation of the Pool, or creates a proxy\n * setting the new `pool` implementation when the function is called for the first time.\n * @param newPoolImpl The new Pool implementation\n */\n function setPoolImpl(address newPoolImpl) external;\n\n /**\n * @notice Returns the address of the PoolConfigurator proxy.\n * @return The PoolConfigurator proxy address\n */\n function getPoolConfigurator() external view returns (address);\n\n /**\n * @notice Updates the implementation of the PoolConfigurator, or creates a proxy\n * setting the new `PoolConfigurator` implementation when the function is called for the first time.\n * @param newPoolConfiguratorImpl The new PoolConfigurator implementation\n */\n function setPoolConfiguratorImpl(address newPoolConfiguratorImpl) external;\n\n /**\n * @notice Returns the address of the price oracle.\n * @return The address of the PriceOracle\n */\n function getPriceOracle() external view returns (address);\n\n /**\n * @notice Updates the address of the price oracle.\n * @param newPriceOracle The address of the new PriceOracle\n */\n function setPriceOracle(address newPriceOracle) external;\n\n /**\n * @notice Returns the address of the ACL manager.\n * @return The address of the ACLManager\n */\n function getACLManager() external view returns (address);\n\n /**\n * @notice Updates the address of the ACL manager.\n * @param newAclManager The address of the new ACLManager\n */\n function setACLManager(address newAclManager) external;\n\n /**\n * @notice Returns the address of the ACL admin.\n * @return The address of the ACL admin\n */\n function getACLAdmin() external view returns (address);\n\n /**\n * @notice Updates the address of the ACL admin.\n * @param newAclAdmin The address of the new ACL admin\n */\n function setACLAdmin(address newAclAdmin) external;\n\n /**\n * @notice Returns the address of the price oracle sentinel.\n * @return The address of the PriceOracleSentinel\n */\n function getPriceOracleSentinel() external view returns (address);\n\n /**\n * @notice Updates the address of the price oracle sentinel.\n * @param newPriceOracleSentinel The address of the new PriceOracleSentinel\n */\n function setPriceOracleSentinel(address newPriceOracleSentinel) external;\n\n /**\n * @notice Returns the address of the data provider.\n * @return The address of the DataProvider\n */\n function getPoolDataProvider() external view returns (address);\n\n /**\n * @notice Updates the address of the data provider.\n * @param newDataProvider The address of the new DataProvider\n */\n function setPoolDataProvider(address newDataProvider) external;\n}\n"},"lib/hypurrfi-deployments/lib/aave-v3-core/contracts/interfaces/IAToken.sol":{"content":"// SPDX-License-Identifier: AGPL-3.0\npragma solidity ^0.8.0;\n\nimport {IERC20} from '../dependencies/openzeppelin/contracts/IERC20.sol';\nimport {IScaledBalanceToken} from './IScaledBalanceToken.sol';\nimport {IInitializableAToken} from './IInitializableAToken.sol';\n\n/**\n * @title IAToken\n * @author Aave\n * @notice Defines the basic interface for an AToken.\n */\ninterface IAToken is IERC20, IScaledBalanceToken, IInitializableAToken {\n /**\n * @dev Emitted during the transfer action\n * @param from The user whose tokens are being transferred\n * @param to The recipient\n * @param value The scaled amount being transferred\n * @param index The next liquidity index of the reserve\n */\n event BalanceTransfer(address indexed from, address indexed to, uint256 value, uint256 index);\n\n /**\n * @notice Mints `amount` aTokens to `user`\n * @param caller The address performing the mint\n * @param onBehalfOf The address of the user that will receive the minted aTokens\n * @param amount The amount of tokens getting minted\n * @param index The next liquidity index of the reserve\n * @return `true` if the the previous balance of the user was 0\n */\n function mint(\n address caller,\n address onBehalfOf,\n uint256 amount,\n uint256 index\n ) external returns (bool);\n\n /**\n * @notice Burns aTokens from `user` and sends the equivalent amount of underlying to `receiverOfUnderlying`\n * @dev In some instances, the mint event could be emitted from a burn transaction\n * if the amount to burn is less than the interest that the user accrued\n * @param from The address from which the aTokens will be burned\n * @param receiverOfUnderlying The address that will receive the underlying\n * @param amount The amount being burned\n * @param index The next liquidity index of the reserve\n */\n function burn(address from, address receiverOfUnderlying, uint256 amount, uint256 index) external;\n\n /**\n * @notice Mints aTokens to the reserve treasury\n * @param amount The amount of tokens getting minted\n * @param index The next liquidity index of the reserve\n */\n function mintToTreasury(uint256 amount, uint256 index) external;\n\n /**\n * @notice Transfers aTokens in the event of a borrow being liquidated, in case the liquidators reclaims the aToken\n * @param from The address getting liquidated, current owner of the aTokens\n * @param to The recipient\n * @param value The amount of tokens getting transferred\n */\n function transferOnLiquidation(address from, address to, uint256 value) external;\n\n /**\n * @notice Transfers the underlying asset to `target`.\n * @dev Used by the Pool to transfer assets in borrow(), withdraw() and flashLoan()\n * @param target The recipient of the underlying\n * @param amount The amount getting transferred\n */\n function transferUnderlyingTo(address target, uint256 amount) external;\n\n /**\n * @notice Handles the underlying received by the aToken after the transfer has been completed.\n * @dev The default implementation is empty as with standard ERC20 tokens, nothing needs to be done after the\n * transfer is concluded. However in the future there may be aTokens that allow for example to stake the underlying\n * to receive LM rewards. In that case, `handleRepayment()` would perform the staking of the underlying asset.\n * @param user The user executing the repayment\n * @param onBehalfOf The address of the user who will get his debt reduced/removed\n * @param amount The amount getting repaid\n */\n function handleRepayment(address user, address onBehalfOf, uint256 amount) external;\n\n /**\n * @notice Allow passing a signed message to approve spending\n * @dev implements the permit function as for\n * https://github.com/ethereum/EIPs/blob/8a34d644aacf0f9f8f00815307fd7dd5da07655f/EIPS/eip-2612.md\n * @param owner The owner of the funds\n * @param spender The spender\n * @param value The amount\n * @param deadline The deadline timestamp, type(uint256).max for max deadline\n * @param v Signature param\n * @param s Signature param\n * @param r Signature param\n */\n function permit(\n address owner,\n address spender,\n uint256 value,\n uint256 deadline,\n uint8 v,\n bytes32 r,\n bytes32 s\n ) external;\n\n /**\n * @notice Returns the address of the underlying asset of this aToken (E.g. WETH for aWETH)\n * @return The address of the underlying asset\n */\n function UNDERLYING_ASSET_ADDRESS() external view returns (address);\n\n /**\n * @notice Returns the address of the Aave treasury, receiving the fees on this aToken.\n * @return Address of the Aave treasury\n */\n function RESERVE_TREASURY_ADDRESS() external view returns (address);\n\n /**\n * @notice Get the domain separator for the token\n * @dev Return cached value if chainId matches cache, otherwise recomputes separator\n * @return The domain separator of the token at current chain\n */\n function DOMAIN_SEPARATOR() external view returns (bytes32);\n\n /**\n * @notice Returns the nonce for owner.\n * @param owner The address of the owner\n * @return The nonce of the owner\n */\n function nonces(address owner) external view returns (uint256);\n\n /**\n * @notice Rescue and transfer tokens locked in this contract\n * @param token The address of the token\n * @param to The address of the recipient\n * @param amount The amount of token to transfer\n */\n function rescueTokens(address token, address to, uint256 amount) external;\n}\n"},"lib/hypurrfi-deployments/lib/aave-v3-core/contracts/protocol/libraries/math/WadRayMath.sol":{"content":"// SPDX-License-Identifier: BUSL-1.1\npragma solidity ^0.8.0;\n\n/**\n * @title WadRayMath library\n * @author Aave\n * @notice Provides functions to perform calculations with Wad and Ray units\n * @dev Provides mul and div function for wads (decimal numbers with 18 digits of precision) and rays (decimal numbers\n * with 27 digits of precision)\n * @dev Operations are rounded. If a value is >=.5, will be rounded up, otherwise rounded down.\n */\nlibrary WadRayMath {\n // HALF_WAD and HALF_RAY expressed with extended notation as constant with operations are not supported in Yul assembly\n uint256 internal constant WAD = 1e18;\n uint256 internal constant HALF_WAD = 0.5e18;\n\n uint256 internal constant RAY = 1e27;\n uint256 internal constant HALF_RAY = 0.5e27;\n\n uint256 internal constant WAD_RAY_RATIO = 1e9;\n\n /**\n * @dev Multiplies two wad, rounding half up to the nearest wad\n * @dev assembly optimized for improved gas savings, see https://twitter.com/transmissions11/status/1451131036377571328\n * @param a Wad\n * @param b Wad\n * @return c = a*b, in wad\n */\n function wadMul(uint256 a, uint256 b) internal pure returns (uint256 c) {\n // to avoid overflow, a <= (type(uint256).max - HALF_WAD) / b\n assembly {\n if iszero(or(iszero(b), iszero(gt(a, div(sub(not(0), HALF_WAD), b))))) {\n revert(0, 0)\n }\n\n c := div(add(mul(a, b), HALF_WAD), WAD)\n }\n }\n\n /**\n * @dev Divides two wad, rounding half up to the nearest wad\n * @dev assembly optimized for improved gas savings, see https://twitter.com/transmissions11/status/1451131036377571328\n * @param a Wad\n * @param b Wad\n * @return c = a/b, in wad\n */\n function wadDiv(uint256 a, uint256 b) internal pure returns (uint256 c) {\n // to avoid overflow, a <= (type(uint256).max - halfB) / WAD\n assembly {\n if or(iszero(b), iszero(iszero(gt(a, div(sub(not(0), div(b, 2)), WAD))))) {\n revert(0, 0)\n }\n\n c := div(add(mul(a, WAD), div(b, 2)), b)\n }\n }\n\n /**\n * @notice Multiplies two ray, rounding half up to the nearest ray\n * @dev assembly optimized for improved gas savings, see https://twitter.com/transmissions11/status/1451131036377571328\n * @param a Ray\n * @param b Ray\n * @return c = a raymul b\n */\n function rayMul(uint256 a, uint256 b) internal pure returns (uint256 c) {\n // to avoid overflow, a <= (type(uint256).max - HALF_RAY) / b\n assembly {\n if iszero(or(iszero(b), iszero(gt(a, div(sub(not(0), HALF_RAY), b))))) {\n revert(0, 0)\n }\n\n c := div(add(mul(a, b), HALF_RAY), RAY)\n }\n }\n\n /**\n * @notice Divides two ray, rounding half up to the nearest ray\n * @dev assembly optimized for improved gas savings, see https://twitter.com/transmissions11/status/1451131036377571328\n * @param a Ray\n * @param b Ray\n * @return c = a raydiv b\n */\n function rayDiv(uint256 a, uint256 b) internal pure returns (uint256 c) {\n // to avoid overflow, a <= (type(uint256).max - halfB) / RAY\n assembly {\n if or(iszero(b), iszero(iszero(gt(a, div(sub(not(0), div(b, 2)), RAY))))) {\n revert(0, 0)\n }\n\n c := div(add(mul(a, RAY), div(b, 2)), b)\n }\n }\n\n /**\n * @dev Casts ray down to wad\n * @dev assembly optimized for improved gas savings, see https://twitter.com/transmissions11/status/1451131036377571328\n * @param a Ray\n * @return b = a converted to wad, rounded half up to the nearest wad\n */\n function rayToWad(uint256 a) internal pure returns (uint256 b) {\n assembly {\n b := div(a, WAD_RAY_RATIO)\n let remainder := mod(a, WAD_RAY_RATIO)\n if iszero(lt(remainder, div(WAD_RAY_RATIO, 2))) {\n b := add(b, 1)\n }\n }\n }\n\n /**\n * @dev Converts wad up to ray\n * @dev assembly optimized for improved gas savings, see https://twitter.com/transmissions11/status/1451131036377571328\n * @param a Wad\n * @return b = a converted in ray\n */\n function wadToRay(uint256 a) internal pure returns (uint256 b) {\n // to avoid overflow, b/WAD_RAY_RATIO == a\n assembly {\n b := mul(a, WAD_RAY_RATIO)\n\n if iszero(eq(div(b, WAD_RAY_RATIO), a)) {\n revert(0, 0)\n }\n }\n }\n}\n"},"src/contracts/usdxl/interfaces/IUsdxlToken.sol":{"content":"// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\nimport {IERC20} from '@openzeppelin/contracts/token/ERC20/IERC20.sol';\nimport {IAccessControl} from '@openzeppelin/contracts/access/IAccessControl.sol';\n\n/**\n * @title IGhoToken\n * @author Aave\n */\ninterface IUsdxlToken is IERC20, IAccessControl {\n struct Facilitator {\n uint128 bucketCapacity;\n uint128 bucketLevel;\n string label;\n }\n\n /**\n * @dev Emitted when a new facilitator is added\n * @param facilitatorAddress The address of the new facilitator\n * @param label A hashed human readable identifier for the facilitator\n * @param bucketCapacity The initial capacity of the facilitator's bucket\n */\n event FacilitatorAdded(\n address indexed facilitatorAddress,\n bytes32 indexed label,\n uint256 bucketCapacity\n );\n\n /**\n * @dev Emitted when a facilitator is removed\n * @param facilitatorAddress The address of the removed facilitator\n */\n event FacilitatorRemoved(address indexed facilitatorAddress);\n\n /**\n * @dev Emitted when the bucket capacity of a facilitator is updated\n * @param facilitatorAddress The address of the facilitator whose bucket capacity is being changed\n * @param oldCapacity The old capacity of the bucket\n * @param newCapacity The new capacity of the bucket\n */\n event FacilitatorBucketCapacityUpdated(\n address indexed facilitatorAddress,\n uint256 oldCapacity,\n uint256 newCapacity\n );\n\n /**\n * @dev Emitted when the bucket level changed\n * @param facilitatorAddress The address of the facilitator whose bucket level is being changed\n * @param oldLevel The old level of the bucket\n * @param newLevel The new level of the bucket\n */\n event FacilitatorBucketLevelUpdated(\n address indexed facilitatorAddress,\n uint256 oldLevel,\n uint256 newLevel\n );\n\n /**\n * @notice Returns the identifier of the Facilitator Manager Role\n * @return The bytes32 id hash of the FacilitatorManager role\n */\n function FACILITATOR_MANAGER_ROLE() external pure returns (bytes32);\n\n /**\n * @notice Returns the identifier of the Bucket Manager Role\n * @return The bytes32 id hash of the BucketManager role\n */\n function BUCKET_MANAGER_ROLE() external pure returns (bytes32);\n\n /**\n * @notice Mints the requested amount of tokens to the account address.\n * @dev Only facilitators with enough bucket capacity available can mint.\n * @dev The bucket level is increased upon minting.\n * @param account The address receiving the GHO tokens\n * @param amount The amount to mint\n */\n function mint(address account, uint256 amount) external;\n\n /**\n * @notice Burns the requested amount of tokens from the account address.\n * @dev Only active facilitators (bucket level > 0) can burn.\n * @dev The bucket level is decreased upon burning.\n * @param amount The amount to burn\n */\n function burn(uint256 amount) external;\n\n /**\n * @notice Add the facilitator passed with the parameters to the facilitators list.\n * @dev Only accounts with `FACILITATOR_MANAGER_ROLE` role can call this function\n * @param facilitatorAddress The address of the facilitator to add\n * @param facilitatorLabel A human readable identifier for the facilitator\n * @param bucketCapacity The upward limit of GHO can be minted by the facilitator\n */\n function addFacilitator(\n address facilitatorAddress,\n string calldata facilitatorLabel,\n uint128 bucketCapacity\n ) external;\n\n /**\n * @notice Remove the facilitator from the facilitators list.\n * @dev Only accounts with `FACILITATOR_MANAGER_ROLE` role can call this function\n * @param facilitatorAddress The address of the facilitator to remove\n */\n function removeFacilitator(address facilitatorAddress) external;\n\n /**\n * @notice Set the bucket capacity of the facilitator.\n * @dev Only accounts with `BUCKET_MANAGER_ROLE` role can call this function\n * @param facilitator The address of the facilitator\n * @param newCapacity The new capacity of the bucket\n */\n function setFacilitatorBucketCapacity(address facilitator, uint128 newCapacity) external;\n\n /**\n * @notice Returns the facilitator data\n * @param facilitator The address of the facilitator\n * @return The facilitator configuration\n */\n function getFacilitator(address facilitator) external view returns (Facilitator memory);\n\n /**\n * @notice Returns the bucket configuration of the facilitator\n * @param facilitator The address of the facilitator\n * @return The capacity of the facilitator's bucket\n * @return The level of the facilitator's bucket\n */\n function getFacilitatorBucket(address facilitator) external view returns (uint256, uint256);\n\n /**\n * @notice Returns the list of the addresses of the active facilitator\n * @return The list of the facilitators addresses\n */\n function getFacilitatorsList() external view returns (address[] memory);\n}\n"},"lib/openzeppelin-contracts/contracts/utils/math/SafeCast.sol":{"content":"// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.8.0) (utils/math/SafeCast.sol)\n// This file was procedurally generated from scripts/generate/templates/SafeCast.js.\n\npragma solidity ^0.8.0;\n\n/**\n * @dev Wrappers over Solidity's uintXX/intXX casting operators with added overflow\n * checks.\n *\n * Downcasting from uint256/int256 in Solidity does not revert on overflow. This can\n * easily result in undesired exploitation or bugs, since developers usually\n * assume that overflows raise errors. `SafeCast` restores this intuition by\n * reverting the transaction when such an operation overflows.\n *\n * Using this library instead of the unchecked operations eliminates an entire\n * class of bugs, so it's recommended to use it always.\n *\n * Can be combined with {SafeMath} and {SignedSafeMath} to extend it to smaller types, by performing\n * all math on `uint256` and `int256` and then downcasting.\n */\nlibrary SafeCast {\n /**\n * @dev Returns the downcasted uint248 from uint256, reverting on\n * overflow (when the input is greater than largest uint248).\n *\n * Counterpart to Solidity's `uint248` operator.\n *\n * Requirements:\n *\n * - input must fit into 248 bits\n *\n * _Available since v4.7._\n */\n function toUint248(uint256 value) internal pure returns (uint248) {\n require(value <= type(uint248).max, \"SafeCast: value doesn't fit in 248 bits\");\n return uint248(value);\n }\n\n /**\n * @dev Returns the downcasted uint240 from uint256, reverting on\n * overflow (when the input is greater than largest uint240).\n *\n * Counterpart to Solidity's `uint240` operator.\n *\n * Requirements:\n *\n * - input must fit into 240 bits\n *\n * _Available since v4.7._\n */\n function toUint240(uint256 value) internal pure returns (uint240) {\n require(value <= type(uint240).max, \"SafeCast: value doesn't fit in 240 bits\");\n return uint240(value);\n }\n\n /**\n * @dev Returns the downcasted uint232 from uint256, reverting on\n * overflow (when the input is greater than largest uint232).\n *\n * Counterpart to Solidity's `uint232` operator.\n *\n * Requirements:\n *\n * - input must fit into 232 bits\n *\n * _Available since v4.7._\n */\n function toUint232(uint256 value) internal pure returns (uint232) {\n require(value <= type(uint232).max, \"SafeCast: value doesn't fit in 232 bits\");\n return uint232(value);\n }\n\n /**\n * @dev Returns the downcasted uint224 from uint256, reverting on\n * overflow (when the input is greater than largest uint224).\n *\n * Counterpart to Solidity's `uint224` operator.\n *\n * Requirements:\n *\n * - input must fit into 224 bits\n *\n * _Available since v4.2._\n */\n function toUint224(uint256 value) internal pure returns (uint224) {\n require(value <= type(uint224).max, \"SafeCast: value doesn't fit in 224 bits\");\n return uint224(value);\n }\n\n /**\n * @dev Returns the downcasted uint216 from uint256, reverting on\n * overflow (when the input is greater than largest uint216).\n *\n * Counterpart to Solidity's `uint216` operator.\n *\n * Requirements:\n *\n * - input must fit into 216 bits\n *\n * _Available since v4.7._\n */\n function toUint216(uint256 value) internal pure returns (uint216) {\n require(value <= type(uint216).max, \"SafeCast: value doesn't fit in 216 bits\");\n return uint216(value);\n }\n\n /**\n * @dev Returns the downcasted uint208 from uint256, reverting on\n * overflow (when the input is greater than largest uint208).\n *\n * Counterpart to Solidity's `uint208` operator.\n *\n * Requirements:\n *\n * - input must fit into 208 bits\n *\n * _Available since v4.7._\n */\n function toUint208(uint256 value) internal pure returns (uint208) {\n require(value <= type(uint208).max, \"SafeCast: value doesn't fit in 208 bits\");\n return uint208(value);\n }\n\n /**\n * @dev Returns the downcasted uint200 from uint256, reverting on\n * overflow (when the input is greater than largest uint200).\n *\n * Counterpart to Solidity's `uint200` operator.\n *\n * Requirements:\n *\n * - input must fit into 200 bits\n *\n * _Available since v4.7._\n */\n function toUint200(uint256 value) internal pure returns (uint200) {\n require(value <= type(uint200).max, \"SafeCast: value doesn't fit in 200 bits\");\n return uint200(value);\n }\n\n /**\n * @dev Returns the downcasted uint192 from uint256, reverting on\n * overflow (when the input is greater than largest uint192).\n *\n * Counterpart to Solidity's `uint192` operator.\n *\n * Requirements:\n *\n * - input must fit into 192 bits\n *\n * _Available since v4.7._\n */\n function toUint192(uint256 value) internal pure returns (uint192) {\n require(value <= type(uint192).max, \"SafeCast: value doesn't fit in 192 bits\");\n return uint192(value);\n }\n\n /**\n * @dev Returns the downcasted uint184 from uint256, reverting on\n * overflow (when the input is greater than largest uint184).\n *\n * Counterpart to Solidity's `uint184` operator.\n *\n * Requirements:\n *\n * - input must fit into 184 bits\n *\n * _Available since v4.7._\n */\n function toUint184(uint256 value) internal pure returns (uint184) {\n require(value <= type(uint184).max, \"SafeCast: value doesn't fit in 184 bits\");\n return uint184(value);\n }\n\n /**\n * @dev Returns the downcasted uint176 from uint256, reverting on\n * overflow (when the input is greater than largest uint176).\n *\n * Counterpart to Solidity's `uint176` operator.\n *\n * Requirements:\n *\n * - input must fit into 176 bits\n *\n * _Available since v4.7._\n */\n function toUint176(uint256 value) internal pure returns (uint176) {\n require(value <= type(uint176).max, \"SafeCast: value doesn't fit in 176 bits\");\n return uint176(value);\n }\n\n /**\n * @dev Returns the downcasted uint168 from uint256, reverting on\n * overflow (when the input is greater than largest uint168).\n *\n * Counterpart to Solidity's `uint168` operator.\n *\n * Requirements:\n *\n * - input must fit into 168 bits\n *\n * _Available since v4.7._\n */\n function toUint168(uint256 value) internal pure returns (uint168) {\n require(value <= type(uint168).max, \"SafeCast: value doesn't fit in 168 bits\");\n return uint168(value);\n }\n\n /**\n * @dev Returns the downcasted uint160 from uint256, reverting on\n * overflow (when the input is greater than largest uint160).\n *\n * Counterpart to Solidity's `uint160` operator.\n *\n * Requirements:\n *\n * - input must fit into 160 bits\n *\n * _Available since v4.7._\n */\n function toUint160(uint256 value) internal pure returns (uint160) {\n require(value <= type(uint160).max, \"SafeCast: value doesn't fit in 160 bits\");\n return uint160(value);\n }\n\n /**\n * @dev Returns the downcasted uint152 from uint256, reverting on\n * overflow (when the input is greater than largest uint152).\n *\n * Counterpart to Solidity's `uint152` operator.\n *\n * Requirements:\n *\n * - input must fit into 152 bits\n *\n * _Available since v4.7._\n */\n function toUint152(uint256 value) internal pure returns (uint152) {\n require(value <= type(uint152).max, \"SafeCast: value doesn't fit in 152 bits\");\n return uint152(value);\n }\n\n /**\n * @dev Returns the downcasted uint144 from uint256, reverting on\n * overflow (when the input is greater than largest uint144).\n *\n * Counterpart to Solidity's `uint144` operator.\n *\n * Requirements:\n *\n * - input must fit into 144 bits\n *\n * _Available since v4.7._\n */\n function toUint144(uint256 value) internal pure returns (uint144) {\n require(value <= type(uint144).max, \"SafeCast: value doesn't fit in 144 bits\");\n return uint144(value);\n }\n\n /**\n * @dev Returns the downcasted uint136 from uint256, reverting on\n * overflow (when the input is greater than largest uint136).\n *\n * Counterpart to Solidity's `uint136` operator.\n *\n * Requirements:\n *\n * - input must fit into 136 bits\n *\n * _Available since v4.7._\n */\n function toUint136(uint256 value) internal pure returns (uint136) {\n require(value <= type(uint136).max, \"SafeCast: value doesn't fit in 136 bits\");\n return uint136(value);\n }\n\n /**\n * @dev Returns the downcasted uint128 from uint256, reverting on\n * overflow (when the input is greater than largest uint128).\n *\n * Counterpart to Solidity's `uint128` operator.\n *\n * Requirements:\n *\n * - input must fit into 128 bits\n *\n * _Available since v2.5._\n */\n function toUint128(uint256 value) internal pure returns (uint128) {\n require(value <= type(uint128).max, \"SafeCast: value doesn't fit in 128 bits\");\n return uint128(value);\n }\n\n /**\n * @dev Returns the downcasted uint120 from uint256, reverting on\n * overflow (when the input is greater than largest uint120).\n *\n * Counterpart to Solidity's `uint120` operator.\n *\n * Requirements:\n *\n * - input must fit into 120 bits\n *\n * _Available since v4.7._\n */\n function toUint120(uint256 value) internal pure returns (uint120) {\n require(value <= type(uint120).max, \"SafeCast: value doesn't fit in 120 bits\");\n return uint120(value);\n }\n\n /**\n * @dev Returns the downcasted uint112 from uint256, reverting on\n * overflow (when the input is greater than largest uint112).\n *\n * Counterpart to Solidity's `uint112` operator.\n *\n * Requirements:\n *\n * - input must fit into 112 bits\n *\n * _Available since v4.7._\n */\n function toUint112(uint256 value) internal pure returns (uint112) {\n require(value <= type(uint112).max, \"SafeCast: value doesn't fit in 112 bits\");\n return uint112(value);\n }\n\n /**\n * @dev Returns the downcasted uint104 from uint256, reverting on\n * overflow (when the input is greater than largest uint104).\n *\n * Counterpart to Solidity's `uint104` operator.\n *\n * Requirements:\n *\n * - input must fit into 104 bits\n *\n * _Available since v4.7._\n */\n function toUint104(uint256 value) internal pure returns (uint104) {\n require(value <= type(uint104).max, \"SafeCast: value doesn't fit in 104 bits\");\n return uint104(value);\n }\n\n /**\n * @dev Returns the downcasted uint96 from uint256, reverting on\n * overflow (when the input is greater than largest uint96).\n *\n * Counterpart to Solidity's `uint96` operator.\n *\n * Requirements:\n *\n * - input must fit into 96 bits\n *\n * _Available since v4.2._\n */\n function toUint96(uint256 value) internal pure returns (uint96) {\n require(value <= type(uint96).max, \"SafeCast: value doesn't fit in 96 bits\");\n return uint96(value);\n }\n\n /**\n * @dev Returns the downcasted uint88 from uint256, reverting on\n * overflow (when the input is greater than largest uint88).\n *\n * Counterpart to Solidity's `uint88` operator.\n *\n * Requirements:\n *\n * - input must fit into 88 bits\n *\n * _Available since v4.7._\n */\n function toUint88(uint256 value) internal pure returns (uint88) {\n require(value <= type(uint88).max, \"SafeCast: value doesn't fit in 88 bits\");\n return uint88(value);\n }\n\n /**\n * @dev Returns the downcasted uint80 from uint256, reverting on\n * overflow (when the input is greater than largest uint80).\n *\n * Counterpart to Solidity's `uint80` operator.\n *\n * Requirements:\n *\n * - input must fit into 80 bits\n *\n * _Available since v4.7._\n */\n function toUint80(uint256 value) internal pure returns (uint80) {\n require(value <= type(uint80).max, \"SafeCast: value doesn't fit in 80 bits\");\n return uint80(value);\n }\n\n /**\n * @dev Returns the downcasted uint72 from uint256, reverting on\n * overflow (when the input is greater than largest uint72).\n *\n * Counterpart to Solidity's `uint72` operator.\n *\n * Requirements:\n *\n * - input must fit into 72 bits\n *\n * _Available since v4.7._\n */\n function toUint72(uint256 value) internal pure returns (uint72) {\n require(value <= type(uint72).max, \"SafeCast: value doesn't fit in 72 bits\");\n return uint72(value);\n }\n\n /**\n * @dev Returns the downcasted uint64 from uint256, reverting on\n * overflow (when the input is greater than largest uint64).\n *\n * Counterpart to Solidity's `uint64` operator.\n *\n * Requirements:\n *\n * - input must fit into 64 bits\n *\n * _Available since v2.5._\n */\n function toUint64(uint256 value) internal pure returns (uint64) {\n require(value <= type(uint64).max, \"SafeCast: value doesn't fit in 64 bits\");\n return uint64(value);\n }\n\n /**\n * @dev Returns the downcasted uint56 from uint256, reverting on\n * overflow (when the input is greater than largest uint56).\n *\n * Counterpart to Solidity's `uint56` operator.\n *\n * Requirements:\n *\n * - input must fit into 56 bits\n *\n * _Available since v4.7._\n */\n function toUint56(uint256 value) internal pure returns (uint56) {\n require(value <= type(uint56).max, \"SafeCast: value doesn't fit in 56 bits\");\n return uint56(value);\n }\n\n /**\n * @dev Returns the downcasted uint48 from uint256, reverting on\n * overflow (when the input is greater than largest uint48).\n *\n * Counterpart to Solidity's `uint48` operator.\n *\n * Requirements:\n *\n * - input must fit into 48 bits\n *\n * _Available since v4.7._\n */\n function toUint48(uint256 value) internal pure returns (uint48) {\n require(value <= type(uint48).max, \"SafeCast: value doesn't fit in 48 bits\");\n return uint48(value);\n }\n\n /**\n * @dev Returns the downcasted uint40 from uint256, reverting on\n * overflow (when the input is greater than largest uint40).\n *\n * Counterpart to Solidity's `uint40` operator.\n *\n * Requirements:\n *\n * - input must fit into 40 bits\n *\n * _Available since v4.7._\n */\n function toUint40(uint256 value) internal pure returns (uint40) {\n require(value <= type(uint40).max, \"SafeCast: value doesn't fit in 40 bits\");\n return uint40(value);\n }\n\n /**\n * @dev Returns the downcasted uint32 from uint256, reverting on\n * overflow (when the input is greater than largest uint32).\n *\n * Counterpart to Solidity's `uint32` operator.\n *\n * Requirements:\n *\n * - input must fit into 32 bits\n *\n * _Available since v2.5._\n */\n function toUint32(uint256 value) internal pure returns (uint32) {\n require(value <= type(uint32).max, \"SafeCast: value doesn't fit in 32 bits\");\n return uint32(value);\n }\n\n /**\n * @dev Returns the downcasted uint24 from uint256, reverting on\n * overflow (when the input is greater than largest uint24).\n *\n * Counterpart to Solidity's `uint24` operator.\n *\n * Requirements:\n *\n * - input must fit into 24 bits\n *\n * _Available since v4.7._\n */\n function toUint24(uint256 value) internal pure returns (uint24) {\n require(value <= type(uint24).max, \"SafeCast: value doesn't fit in 24 bits\");\n return uint24(value);\n }\n\n /**\n * @dev Returns the downcasted uint16 from uint256, reverting on\n * overflow (when the input is greater than largest uint16).\n *\n * Counterpart to Solidity's `uint16` operator.\n *\n * Requirements:\n *\n * - input must fit into 16 bits\n *\n * _Available since v2.5._\n */\n function toUint16(uint256 value) internal pure returns (uint16) {\n require(value <= type(uint16).max, \"SafeCast: value doesn't fit in 16 bits\");\n return uint16(value);\n }\n\n /**\n * @dev Returns the downcasted uint8 from uint256, reverting on\n * overflow (when the input is greater than largest uint8).\n *\n * Counterpart to Solidity's `uint8` operator.\n *\n * Requirements:\n *\n * - input must fit into 8 bits\n *\n * _Available since v2.5._\n */\n function toUint8(uint256 value) internal pure returns (uint8) {\n require(value <= type(uint8).max, \"SafeCast: value doesn't fit in 8 bits\");\n return uint8(value);\n }\n\n /**\n * @dev Converts a signed int256 into an unsigned uint256.\n *\n * Requirements:\n *\n * - input must be greater than or equal to 0.\n *\n * _Available since v3.0._\n */\n function toUint256(int256 value) internal pure returns (uint256) {\n require(value >= 0, \"SafeCast: value must be positive\");\n return uint256(value);\n }\n\n /**\n * @dev Returns the downcasted int248 from int256, reverting on\n * overflow (when the input is less than smallest int248 or\n * greater than largest int248).\n *\n * Counterpart to Solidity's `int248` operator.\n *\n * Requirements:\n *\n * - input must fit into 248 bits\n *\n * _Available since v4.7._\n */\n function toInt248(int256 value) internal pure returns (int248 downcasted) {\n downcasted = int248(value);\n require(downcasted == value, \"SafeCast: value doesn't fit in 248 bits\");\n }\n\n /**\n * @dev Returns the downcasted int240 from int256, reverting on\n * overflow (when the input is less than smallest int240 or\n * greater than largest int240).\n *\n * Counterpart to Solidity's `int240` operator.\n *\n * Requirements:\n *\n * - input must fit into 240 bits\n *\n * _Available since v4.7._\n */\n function toInt240(int256 value) internal pure returns (int240 downcasted) {\n downcasted = int240(value);\n require(downcasted == value, \"SafeCast: value doesn't fit in 240 bits\");\n }\n\n /**\n * @dev Returns the downcasted int232 from int256, reverting on\n * overflow (when the input is less than smallest int232 or\n * greater than largest int232).\n *\n * Counterpart to Solidity's `int232` operator.\n *\n * Requirements:\n *\n * - input must fit into 232 bits\n *\n * _Available since v4.7._\n */\n function toInt232(int256 value) internal pure returns (int232 downcasted) {\n downcasted = int232(value);\n require(downcasted == value, \"SafeCast: value doesn't fit in 232 bits\");\n }\n\n /**\n * @dev Returns the downcasted int224 from int256, reverting on\n * overflow (when the input is less than smallest int224 or\n * greater than largest int224).\n *\n * Counterpart to Solidity's `int224` operator.\n *\n * Requirements:\n *\n * - input must fit into 224 bits\n *\n * _Available since v4.7._\n */\n function toInt224(int256 value) internal pure returns (int224 downcasted) {\n downcasted = int224(value);\n require(downcasted == value, \"SafeCast: value doesn't fit in 224 bits\");\n }\n\n /**\n * @dev Returns the downcasted int216 from int256, reverting on\n * overflow (when the input is less than smallest int216 or\n * greater than largest int216).\n *\n * Counterpart to Solidity's `int216` operator.\n *\n * Requirements:\n *\n * - input must fit into 216 bits\n *\n * _Available since v4.7._\n */\n function toInt216(int256 value) internal pure returns (int216 downcasted) {\n downcasted = int216(value);\n require(downcasted == value, \"SafeCast: value doesn't fit in 216 bits\");\n }\n\n /**\n * @dev Returns the downcasted int208 from int256, reverting on\n * overflow (when the input is less than smallest int208 or\n * greater than largest int208).\n *\n * Counterpart to Solidity's `int208` operator.\n *\n * Requirements:\n *\n * - input must fit into 208 bits\n *\n * _Available since v4.7._\n */\n function toInt208(int256 value) internal pure returns (int208 downcasted) {\n downcasted = int208(value);\n require(downcasted == value, \"SafeCast: value doesn't fit in 208 bits\");\n }\n\n /**\n * @dev Returns the downcasted int200 from int256, reverting on\n * overflow (when the input is less than smallest int200 or\n * greater than largest int200).\n *\n * Counterpart to Solidity's `int200` operator.\n *\n * Requirements:\n *\n * - input must fit into 200 bits\n *\n * _Available since v4.7._\n */\n function toInt200(int256 value) internal pure returns (int200 downcasted) {\n downcasted = int200(value);\n require(downcasted == value, \"SafeCast: value doesn't fit in 200 bits\");\n }\n\n /**\n * @dev Returns the downcasted int192 from int256, reverting on\n * overflow (when the input is less than smallest int192 or\n * greater than largest int192).\n *\n * Counterpart to Solidity's `int192` operator.\n *\n * Requirements:\n *\n * - input must fit into 192 bits\n *\n * _Available since v4.7._\n */\n function toInt192(int256 value) internal pure returns (int192 downcasted) {\n downcasted = int192(value);\n require(downcasted == value, \"SafeCast: value doesn't fit in 192 bits\");\n }\n\n /**\n * @dev Returns the downcasted int184 from int256, reverting on\n * overflow (when the input is less than smallest int184 or\n * greater than largest int184).\n *\n * Counterpart to Solidity's `int184` operator.\n *\n * Requirements:\n *\n * - input must fit into 184 bits\n *\n * _Available since v4.7._\n */\n function toInt184(int256 value) internal pure returns (int184 downcasted) {\n downcasted = int184(value);\n require(downcasted == value, \"SafeCast: value doesn't fit in 184 bits\");\n }\n\n /**\n * @dev Returns the downcasted int176 from int256, reverting on\n * overflow (when the input is less than smallest int176 or\n * greater than largest int176).\n *\n * Counterpart to Solidity's `int176` operator.\n *\n * Requirements:\n *\n * - input must fit into 176 bits\n *\n * _Available since v4.7._\n */\n function toInt176(int256 value) internal pure returns (int176 downcasted) {\n downcasted = int176(value);\n require(downcasted == value, \"SafeCast: value doesn't fit in 176 bits\");\n }\n\n /**\n * @dev Returns the downcasted int168 from int256, reverting on\n * overflow (when the input is less than smallest int168 or\n * greater than largest int168).\n *\n * Counterpart to Solidity's `int168` operator.\n *\n * Requirements:\n *\n * - input must fit into 168 bits\n *\n * _Available since v4.7._\n */\n function toInt168(int256 value) internal pure returns (int168 downcasted) {\n downcasted = int168(value);\n require(downcasted == value, \"SafeCast: value doesn't fit in 168 bits\");\n }\n\n /**\n * @dev Returns the downcasted int160 from int256, reverting on\n * overflow (when the input is less than smallest int160 or\n * greater than largest int160).\n *\n * Counterpart to Solidity's `int160` operator.\n *\n * Requirements:\n *\n * - input must fit into 160 bits\n *\n * _Available since v4.7._\n */\n function toInt160(int256 value) internal pure returns (int160 downcasted) {\n downcasted = int160(value);\n require(downcasted == value, \"SafeCast: value doesn't fit in 160 bits\");\n }\n\n /**\n * @dev Returns the downcasted int152 from int256, reverting on\n * overflow (when the input is less than smallest int152 or\n * greater than largest int152).\n *\n * Counterpart to Solidity's `int152` operator.\n *\n * Requirements:\n *\n * - input must fit into 152 bits\n *\n * _Available since v4.7._\n */\n function toInt152(int256 value) internal pure returns (int152 downcasted) {\n downcasted = int152(value);\n require(downcasted == value, \"SafeCast: value doesn't fit in 152 bits\");\n }\n\n /**\n * @dev Returns the downcasted int144 from int256, reverting on\n * overflow (when the input is less than smallest int144 or\n * greater than largest int144).\n *\n * Counterpart to Solidity's `int144` operator.\n *\n * Requirements:\n *\n * - input must fit into 144 bits\n *\n * _Available since v4.7._\n */\n function toInt144(int256 value) internal pure returns (int144 downcasted) {\n downcasted = int144(value);\n require(downcasted == value, \"SafeCast: value doesn't fit in 144 bits\");\n }\n\n /**\n * @dev Returns the downcasted int136 from int256, reverting on\n * overflow (when the input is less than smallest int136 or\n * greater than largest int136).\n *\n * Counterpart to Solidity's `int136` operator.\n *\n * Requirements:\n *\n * - input must fit into 136 bits\n *\n * _Available since v4.7._\n */\n function toInt136(int256 value) internal pure returns (int136 downcasted) {\n downcasted = int136(value);\n require(downcasted == value, \"SafeCast: value doesn't fit in 136 bits\");\n }\n\n /**\n * @dev Returns the downcasted int128 from int256, reverting on\n * overflow (when the input is less than smallest int128 or\n * greater than largest int128).\n *\n * Counterpart to Solidity's `int128` operator.\n *\n * Requirements:\n *\n * - input must fit into 128 bits\n *\n * _Available since v3.1._\n */\n function toInt128(int256 value) internal pure returns (int128 downcasted) {\n downcasted = int128(value);\n require(downcasted == value, \"SafeCast: value doesn't fit in 128 bits\");\n }\n\n /**\n * @dev Returns the downcasted int120 from int256, reverting on\n * overflow (when the input is less than smallest int120 or\n * greater than largest int120).\n *\n * Counterpart to Solidity's `int120` operator.\n *\n * Requirements:\n *\n * - input must fit into 120 bits\n *\n * _Available since v4.7._\n */\n function toInt120(int256 value) internal pure returns (int120 downcasted) {\n downcasted = int120(value);\n require(downcasted == value, \"SafeCast: value doesn't fit in 120 bits\");\n }\n\n /**\n * @dev Returns the downcasted int112 from int256, reverting on\n * overflow (when the input is less than smallest int112 or\n * greater than largest int112).\n *\n * Counterpart to Solidity's `int112` operator.\n *\n * Requirements:\n *\n * - input must fit into 112 bits\n *\n * _Available since v4.7._\n */\n function toInt112(int256 value) internal pure returns (int112 downcasted) {\n downcasted = int112(value);\n require(downcasted == value, \"SafeCast: value doesn't fit in 112 bits\");\n }\n\n /**\n * @dev Returns the downcasted int104 from int256, reverting on\n * overflow (when the input is less than smallest int104 or\n * greater than largest int104).\n *\n * Counterpart to Solidity's `int104` operator.\n *\n * Requirements:\n *\n * - input must fit into 104 bits\n *\n * _Available since v4.7._\n */\n function toInt104(int256 value) internal pure returns (int104 downcasted) {\n downcasted = int104(value);\n require(downcasted == value, \"SafeCast: value doesn't fit in 104 bits\");\n }\n\n /**\n * @dev Returns the downcasted int96 from int256, reverting on\n * overflow (when the input is less than smallest int96 or\n * greater than largest int96).\n *\n * Counterpart to Solidity's `int96` operator.\n *\n * Requirements:\n *\n * - input must fit into 96 bits\n *\n * _Available since v4.7._\n */\n function toInt96(int256 value) internal pure returns (int96 downcasted) {\n downcasted = int96(value);\n require(downcasted == value, \"SafeCast: value doesn't fit in 96 bits\");\n }\n\n /**\n * @dev Returns the downcasted int88 from int256, reverting on\n * overflow (when the input is less than smallest int88 or\n * greater than largest int88).\n *\n * Counterpart to Solidity's `int88` operator.\n *\n * Requirements:\n *\n * - input must fit into 88 bits\n *\n * _Available since v4.7._\n */\n function toInt88(int256 value) internal pure returns (int88 downcasted) {\n downcasted = int88(value);\n require(downcasted == value, \"SafeCast: value doesn't fit in 88 bits\");\n }\n\n /**\n * @dev Returns the downcasted int80 from int256, reverting on\n * overflow (when the input is less than smallest int80 or\n * greater than largest int80).\n *\n * Counterpart to Solidity's `int80` operator.\n *\n * Requirements:\n *\n * - input must fit into 80 bits\n *\n * _Available since v4.7._\n */\n function toInt80(int256 value) internal pure returns (int80 downcasted) {\n downcasted = int80(value);\n require(downcasted == value, \"SafeCast: value doesn't fit in 80 bits\");\n }\n\n /**\n * @dev Returns the downcasted int72 from int256, reverting on\n * overflow (when the input is less than smallest int72 or\n * greater than largest int72).\n *\n * Counterpart to Solidity's `int72` operator.\n *\n * Requirements:\n *\n * - input must fit into 72 bits\n *\n * _Available since v4.7._\n */\n function toInt72(int256 value) internal pure returns (int72 downcasted) {\n downcasted = int72(value);\n require(downcasted == value, \"SafeCast: value doesn't fit in 72 bits\");\n }\n\n /**\n * @dev Returns the downcasted int64 from int256, reverting on\n * overflow (when the input is less than smallest int64 or\n * greater than largest int64).\n *\n * Counterpart to Solidity's `int64` operator.\n *\n * Requirements:\n *\n * - input must fit into 64 bits\n *\n * _Available since v3.1._\n */\n function toInt64(int256 value) internal pure returns (int64 downcasted) {\n downcasted = int64(value);\n require(downcasted == value, \"SafeCast: value doesn't fit in 64 bits\");\n }\n\n /**\n * @dev Returns the downcasted int56 from int256, reverting on\n * overflow (when the input is less than smallest int56 or\n * greater than largest int56).\n *\n * Counterpart to Solidity's `int56` operator.\n *\n * Requirements:\n *\n * - input must fit into 56 bits\n *\n * _Available since v4.7._\n */\n function toInt56(int256 value) internal pure returns (int56 downcasted) {\n downcasted = int56(value);\n require(downcasted == value, \"SafeCast: value doesn't fit in 56 bits\");\n }\n\n /**\n * @dev Returns the downcasted int48 from int256, reverting on\n * overflow (when the input is less than smallest int48 or\n * greater than largest int48).\n *\n * Counterpart to Solidity's `int48` operator.\n *\n * Requirements:\n *\n * - input must fit into 48 bits\n *\n * _Available since v4.7._\n */\n function toInt48(int256 value) internal pure returns (int48 downcasted) {\n downcasted = int48(value);\n require(downcasted == value, \"SafeCast: value doesn't fit in 48 bits\");\n }\n\n /**\n * @dev Returns the downcasted int40 from int256, reverting on\n * overflow (when the input is less than smallest int40 or\n * greater than largest int40).\n *\n * Counterpart to Solidity's `int40` operator.\n *\n * Requirements:\n *\n * - input must fit into 40 bits\n *\n * _Available since v4.7._\n */\n function toInt40(int256 value) internal pure returns (int40 downcasted) {\n downcasted = int40(value);\n require(downcasted == value, \"SafeCast: value doesn't fit in 40 bits\");\n }\n\n /**\n * @dev Returns the downcasted int32 from int256, reverting on\n * overflow (when the input is less than smallest int32 or\n * greater than largest int32).\n *\n * Counterpart to Solidity's `int32` operator.\n *\n * Requirements:\n *\n * - input must fit into 32 bits\n *\n * _Available since v3.1._\n */\n function toInt32(int256 value) internal pure returns (int32 downcasted) {\n downcasted = int32(value);\n require(downcasted == value, \"SafeCast: value doesn't fit in 32 bits\");\n }\n\n /**\n * @dev Returns the downcasted int24 from int256, reverting on\n * overflow (when the input is less than smallest int24 or\n * greater than largest int24).\n *\n * Counterpart to Solidity's `int24` operator.\n *\n * Requirements:\n *\n * - input must fit into 24 bits\n *\n * _Available since v4.7._\n */\n function toInt24(int256 value) internal pure returns (int24 downcasted) {\n downcasted = int24(value);\n require(downcasted == value, \"SafeCast: value doesn't fit in 24 bits\");\n }\n\n /**\n * @dev Returns the downcasted int16 from int256, reverting on\n * overflow (when the input is less than smallest int16 or\n * greater than largest int16).\n *\n * Counterpart to Solidity's `int16` operator.\n *\n * Requirements:\n *\n * - input must fit into 16 bits\n *\n * _Available since v3.1._\n */\n function toInt16(int256 value) internal pure returns (int16 downcasted) {\n downcasted = int16(value);\n require(downcasted == value, \"SafeCast: value doesn't fit in 16 bits\");\n }\n\n /**\n * @dev Returns the downcasted int8 from int256, reverting on\n * overflow (when the input is less than smallest int8 or\n * greater than largest int8).\n *\n * Counterpart to Solidity's `int8` operator.\n *\n * Requirements:\n *\n * - input must fit into 8 bits\n *\n * _Available since v3.1._\n */\n function toInt8(int256 value) internal pure returns (int8 downcasted) {\n downcasted = int8(value);\n require(downcasted == value, \"SafeCast: value doesn't fit in 8 bits\");\n }\n\n /**\n * @dev Converts an unsigned uint256 into a signed int256.\n *\n * Requirements:\n *\n * - input must be less than or equal to maxInt256.\n *\n * _Available since v3.0._\n */\n function toInt256(uint256 value) internal pure returns (int256) {\n // Note: Unsafe cast below is okay because `type(int256).max` is guaranteed to be positive\n require(value <= uint256(type(int256).max), \"SafeCast: value doesn't fit in an int256\");\n return int256(value);\n }\n}\n"},"lib/openzeppelin-contracts/contracts/proxy/transparent/ProxyAdmin.sol":{"content":"// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (proxy/transparent/ProxyAdmin.sol)\n\npragma solidity ^0.8.0;\n\nimport \"./TransparentUpgradeableProxy.sol\";\nimport \"../../access/Ownable.sol\";\n\n/**\n * @dev This is an auxiliary contract meant to be assigned as the admin of a {TransparentUpgradeableProxy}. For an\n * explanation of why you would want to use this see the documentation for {TransparentUpgradeableProxy}.\n */\ncontract ProxyAdmin is Ownable {\n /**\n * @dev Returns the current implementation of `proxy`.\n *\n * Requirements:\n *\n * - This contract must be the admin of `proxy`.\n */\n function getProxyImplementation(TransparentUpgradeableProxy proxy) public view virtual returns (address) {\n // We need to manually run the static call since the getter cannot be flagged as view\n // bytes4(keccak256(\"implementation()\")) == 0x5c60da1b\n (bool success, bytes memory returndata) = address(proxy).staticcall(hex\"5c60da1b\");\n require(success);\n return abi.decode(returndata, (address));\n }\n\n /**\n * @dev Returns the current admin of `proxy`.\n *\n * Requirements:\n *\n * - This contract must be the admin of `proxy`.\n */\n function getProxyAdmin(TransparentUpgradeableProxy proxy) public view virtual returns (address) {\n // We need to manually run the static call since the getter cannot be flagged as view\n // bytes4(keccak256(\"admin()\")) == 0xf851a440\n (bool success, bytes memory returndata) = address(proxy).staticcall(hex\"f851a440\");\n require(success);\n return abi.decode(returndata, (address));\n }\n\n /**\n * @dev Changes the admin of `proxy` to `newAdmin`.\n *\n * Requirements:\n *\n * - This contract must be the current admin of `proxy`.\n */\n function changeProxyAdmin(TransparentUpgradeableProxy proxy, address newAdmin) public virtual onlyOwner {\n proxy.changeAdmin(newAdmin);\n }\n\n /**\n * @dev Upgrades `proxy` to `implementation`. See {TransparentUpgradeableProxy-upgradeTo}.\n *\n * Requirements:\n *\n * - This contract must be the admin of `proxy`.\n */\n function upgrade(TransparentUpgradeableProxy proxy, address implementation) public virtual onlyOwner {\n proxy.upgradeTo(implementation);\n }\n\n /**\n * @dev Upgrades `proxy` to `implementation` and calls a function on the new implementation. See\n * {TransparentUpgradeableProxy-upgradeToAndCall}.\n *\n * Requirements:\n *\n * - This contract must be the admin of `proxy`.\n */\n function upgradeAndCall(\n TransparentUpgradeableProxy proxy,\n address implementation,\n bytes memory data\n ) public payable virtual onlyOwner {\n proxy.upgradeToAndCall{value: msg.value}(implementation, data);\n }\n}\n"},"lib/openzeppelin-contracts/contracts/proxy/transparent/TransparentUpgradeableProxy.sol":{"content":"// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.7.0) (proxy/transparent/TransparentUpgradeableProxy.sol)\n\npragma solidity ^0.8.0;\n\nimport \"../ERC1967/ERC1967Proxy.sol\";\n\n/**\n * @dev This contract implements a proxy that is upgradeable by an admin.\n *\n * To avoid https://medium.com/nomic-labs-blog/malicious-backdoors-in-ethereum-proxies-62629adf3357[proxy selector\n * clashing], which can potentially be used in an attack, this contract uses the\n * https://blog.openzeppelin.com/the-transparent-proxy-pattern/[transparent proxy pattern]. This pattern implies two\n * things that go hand in hand:\n *\n * 1. If any account other than the admin calls the proxy, the call will be forwarded to the implementation, even if\n * that call matches one of the admin functions exposed by the proxy itself.\n * 2. If the admin calls the proxy, it can access the admin functions, but its calls will never be forwarded to the\n * implementation. If the admin tries to call a function on the implementation it will fail with an error that says\n * \"admin cannot fallback to proxy target\".\n *\n * These properties mean that the admin account can only be used for admin actions like upgrading the proxy or changing\n * the admin, so it's best if it's a dedicated account that is not used for anything else. This will avoid headaches due\n * to sudden errors when trying to call a function from the proxy implementation.\n *\n * Our recommendation is for the dedicated account to be an instance of the {ProxyAdmin} contract. If set up this way,\n * you should think of the `ProxyAdmin` instance as the real administrative interface of your proxy.\n */\ncontract TransparentUpgradeableProxy is ERC1967Proxy {\n /**\n * @dev Initializes an upgradeable proxy managed by `_admin`, backed by the implementation at `_logic`, and\n * optionally initialized with `_data` as explained in {ERC1967Proxy-constructor}.\n */\n constructor(\n address _logic,\n address admin_,\n bytes memory _data\n ) payable ERC1967Proxy(_logic, _data) {\n _changeAdmin(admin_);\n }\n\n /**\n * @dev Modifier used internally that will delegate the call to the implementation unless the sender is the admin.\n */\n modifier ifAdmin() {\n if (msg.sender == _getAdmin()) {\n _;\n } else {\n _fallback();\n }\n }\n\n /**\n * @dev Returns the current admin.\n *\n * NOTE: Only the admin can call this function. See {ProxyAdmin-getProxyAdmin}.\n *\n * TIP: To get this value clients can read directly from the storage slot shown below (specified by EIP1967) using the\n * https://eth.wiki/json-rpc/API#eth_getstorageat[`eth_getStorageAt`] RPC call.\n * `0xb53127684a568b3173ae13b9f8a6016e243e63b6e8ee1178d6a717850b5d6103`\n */\n function admin() external ifAdmin returns (address admin_) {\n admin_ = _getAdmin();\n }\n\n /**\n * @dev Returns the current implementation.\n *\n * NOTE: Only the admin can call this function. See {ProxyAdmin-getProxyImplementation}.\n *\n * TIP: To get this value clients can read directly from the storage slot shown below (specified by EIP1967) using the\n * https://eth.wiki/json-rpc/API#eth_getstorageat[`eth_getStorageAt`] RPC call.\n * `0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc`\n */\n function implementation() external ifAdmin returns (address implementation_) {\n implementation_ = _implementation();\n }\n\n /**\n * @dev Changes the admin of the proxy.\n *\n * Emits an {AdminChanged} event.\n *\n * NOTE: Only the admin can call this function. See {ProxyAdmin-changeProxyAdmin}.\n */\n function changeAdmin(address newAdmin) external virtual ifAdmin {\n _changeAdmin(newAdmin);\n }\n\n /**\n * @dev Upgrade the implementation of the proxy.\n *\n * NOTE: Only the admin can call this function. See {ProxyAdmin-upgrade}.\n */\n function upgradeTo(address newImplementation) external ifAdmin {\n _upgradeToAndCall(newImplementation, bytes(\"\"), false);\n }\n\n /**\n * @dev Upgrade the implementation of the proxy, and then call a function from the new implementation as specified\n * by `data`, which should be an encoded function call. This is useful to initialize new storage variables in the\n * proxied contract.\n *\n * NOTE: Only the admin can call this function. See {ProxyAdmin-upgradeAndCall}.\n */\n function upgradeToAndCall(address newImplementation, bytes calldata data) external payable ifAdmin {\n _upgradeToAndCall(newImplementation, data, true);\n }\n\n /**\n * @dev Returns the current admin.\n */\n function _admin() internal view virtual returns (address) {\n return _getAdmin();\n }\n\n /**\n * @dev Makes sure the admin cannot access the fallback function. See {Proxy-_beforeFallback}.\n */\n function _beforeFallback() internal virtual override {\n require(msg.sender != _getAdmin(), \"TransparentUpgradeableProxy: admin cannot fallback to proxy target\");\n super._beforeFallback();\n }\n}\n"},"src/contracts/facilitators/gsm/Gsm.sol":{"content":"// SPDX-License-Identifier: MIT\npragma solidity ^0.8.10;\n\nimport {VersionedInitializable} from '@aave/core-v3/contracts/protocol/libraries/aave-upgradeability/VersionedInitializable.sol';\nimport {IERC20} from '@aave/core-v3/contracts/dependencies/openzeppelin/contracts/IERC20.sol';\nimport {GPv2SafeERC20} from '@aave/core-v3/contracts/dependencies/gnosis/contracts/GPv2SafeERC20.sol';\nimport {EIP712} from '@openzeppelin/contracts/utils/cryptography/EIP712.sol';\nimport {SignatureChecker} from '@openzeppelin/contracts/utils/cryptography/SignatureChecker.sol';\nimport {SafeCast} from '@openzeppelin/contracts/utils/math/SafeCast.sol';\nimport {AccessControl} from '@openzeppelin/contracts/access/AccessControl.sol';\nimport {IUsdxlFacilitator} from '../../usdxl/interfaces/IUsdxlFacilitator.sol';\nimport {IUsdxlToken} from '../../usdxl/interfaces/IUsdxlToken.sol';\nimport {IGsmPriceStrategy} from './priceStrategy/interfaces/IGsmPriceStrategy.sol';\nimport {IGsmFeeStrategy} from './feeStrategy/interfaces/IGsmFeeStrategy.sol';\nimport {IGsm} from './interfaces/IGsm.sol';\n\n/**\n * @title Gsm\n * @author Aave\n * @notice GHO Stability Module. It provides buy/sell facilities to go to/from an underlying asset to/from GHO.\n * @dev To be covered by a proxy contract.\n */\ncontract Gsm is AccessControl, VersionedInitializable, EIP712, IGsm {\n using GPv2SafeERC20 for IERC20;\n using SafeCast for uint256;\n\n /// @inheritdoc IGsm\n bytes32 public constant CONFIGURATOR_ROLE = keccak256('CONFIGURATOR_ROLE');\n\n /// @inheritdoc IGsm\n bytes32 public constant TOKEN_RESCUER_ROLE = keccak256('TOKEN_RESCUER_ROLE');\n\n /// @inheritdoc IGsm\n bytes32 public constant SWAP_FREEZER_ROLE = keccak256('SWAP_FREEZER_ROLE');\n\n /// @inheritdoc IGsm\n bytes32 public constant LIQUIDATOR_ROLE = keccak256('LIQUIDATOR_ROLE');\n\n /// @inheritdoc IGsm\n bytes32 public constant BUY_ASSET_WITH_SIG_TYPEHASH =\n keccak256(\n 'BuyAssetWithSig(address originator,uint256 minAmount,address receiver,uint256 nonce,uint256 deadline)'\n );\n\n /// @inheritdoc IGsm\n bytes32 public constant SELL_ASSET_WITH_SIG_TYPEHASH =\n keccak256(\n 'SellAssetWithSig(address originator,uint256 maxAmount,address receiver,uint256 nonce,uint256 deadline)'\n );\n\n /// @inheritdoc IGsm\n address public immutable USDXL_TOKEN;\n\n /// @inheritdoc IGsm\n address public immutable UNDERLYING_ASSET;\n\n /// @inheritdoc IGsm\n address public immutable PRICE_STRATEGY;\n\n /// @inheritdoc IGsm\n mapping(address => uint256) public nonces;\n\n address internal _usdxlTreasury;\n address internal _feeStrategy;\n bool internal _isFrozen;\n bool internal _isSeized;\n uint128 internal _exposureCap;\n uint128 internal _currentExposure;\n uint128 internal _accruedFees;\n\n /**\n * @dev Require GSM to not be frozen for functions marked by this modifier\n */\n modifier notFrozen() {\n require(!_isFrozen, 'GSM_FROZEN');\n _;\n }\n\n /**\n * @dev Require GSM to not be seized for functions marked by this modifier\n */\n modifier notSeized() {\n require(!_isSeized, 'GSM_SEIZED');\n _;\n }\n\n /**\n * @dev Constructor\n * @param usdxlToken The address of the GHO token contract\n * @param underlyingAsset The address of the collateral asset\n * @param priceStrategy The address of the price strategy\n */\n constructor(\n address usdxlToken,\n address underlyingAsset,\n address priceStrategy\n ) EIP712('GSM', '1') {\n require(usdxlToken != address(0), 'ZERO_ADDRESS_NOT_VALID');\n require(underlyingAsset != address(0), 'ZERO_ADDRESS_NOT_VALID');\n require(\n IGsmPriceStrategy(priceStrategy).UNDERLYING_ASSET() == underlyingAsset,\n 'INVALID_PRICE_STRATEGY'\n );\n USDXL_TOKEN = usdxlToken;\n UNDERLYING_ASSET = underlyingAsset;\n PRICE_STRATEGY = priceStrategy;\n }\n\n /**\n * @notice GSM initializer\n * @param admin The address of the default admin role\n * @param usdxlTreasury The address of the GHO treasury\n * @param exposureCap Maximum amount of user-supplied underlying asset in GSM\n */\n function initialize(\n address admin,\n address usdxlTreasury,\n uint128 exposureCap\n ) public virtual initializer {\n require(admin != address(0), 'ZERO_ADDRESS_NOT_VALID');\n _grantRole(DEFAULT_ADMIN_ROLE, admin);\n _grantRole(CONFIGURATOR_ROLE, admin);\n _updateUsdxlTreasury(usdxlTreasury);\n _updateExposureCap(exposureCap);\n }\n\n /// @inheritdoc IGsm\n function buyAsset(\n uint256 minAmount,\n address receiver\n ) external notFrozen notSeized returns (uint256, uint256) {\n return _buyAsset(msg.sender, minAmount, receiver);\n }\n\n /// @inheritdoc IGsm\n function buyAssetWithSig(\n address originator,\n uint256 minAmount,\n address receiver,\n uint256 deadline,\n bytes calldata signature\n ) external notFrozen notSeized returns (uint256, uint256) {\n require(deadline >= block.timestamp, 'SIGNATURE_DEADLINE_EXPIRED');\n bytes32 digest = keccak256(\n abi.encode(\n '\\x19\\x01',\n _domainSeparatorV4(),\n BUY_ASSET_WITH_SIG_TYPEHASH,\n abi.encode(originator, minAmount, receiver, nonces[originator]++, deadline)\n )\n );\n require(\n SignatureChecker.isValidSignatureNow(originator, digest, signature),\n 'SIGNATURE_INVALID'\n );\n\n return _buyAsset(originator, minAmount, receiver);\n }\n\n /// @inheritdoc IGsm\n function sellAsset(\n uint256 maxAmount,\n address receiver\n ) external notFrozen notSeized returns (uint256, uint256) {\n return _sellAsset(msg.sender, maxAmount, receiver);\n }\n\n /// @inheritdoc IGsm\n function sellAssetWithSig(\n address originator,\n uint256 maxAmount,\n address receiver,\n uint256 deadline,\n bytes calldata signature\n ) external notFrozen notSeized returns (uint256, uint256) {\n require(deadline >= block.timestamp, 'SIGNATURE_DEADLINE_EXPIRED');\n bytes32 digest = keccak256(\n abi.encode(\n '\\x19\\x01',\n _domainSeparatorV4(),\n SELL_ASSET_WITH_SIG_TYPEHASH,\n abi.encode(originator, maxAmount, receiver, nonces[originator]++, deadline)\n )\n );\n require(\n SignatureChecker.isValidSignatureNow(originator, digest, signature),\n 'SIGNATURE_INVALID'\n );\n\n return _sellAsset(originator, maxAmount, receiver);\n }\n\n /// @inheritdoc IGsm\n function rescueTokens(\n address token,\n address to,\n uint256 amount\n ) external onlyRole(TOKEN_RESCUER_ROLE) {\n require(amount > 0, 'INVALID_AMOUNT');\n if (token == USDXL_TOKEN) {\n uint256 rescuableBalance = IERC20(token).balanceOf(address(this)) - _accruedFees;\n require(rescuableBalance >= amount, 'INSUFFICIENT_USDXL_TO_RESCUE');\n }\n if (token == UNDERLYING_ASSET) {\n uint256 rescuableBalance = IERC20(token).balanceOf(address(this)) - _currentExposure;\n require(rescuableBalance >= amount, 'INSUFFICIENT_EXOGENOUS_ASSET_TO_RESCUE');\n }\n IERC20(token).safeTransfer(to, amount);\n emit TokensRescued(token, to, amount);\n }\n\n /// @inheritdoc IGsm\n function setSwapFreeze(bool enable) external onlyRole(SWAP_FREEZER_ROLE) {\n if (enable) {\n require(!_isFrozen, 'GSM_ALREADY_FROZEN');\n } else {\n require(_isFrozen, 'GSM_ALREADY_UNFROZEN');\n }\n _isFrozen = enable;\n emit SwapFreeze(msg.sender, enable);\n }\n\n /// @inheritdoc IGsm\n function seize() external notSeized onlyRole(LIQUIDATOR_ROLE) returns (uint256) {\n _isSeized = true;\n _currentExposure = 0;\n _updateExposureCap(0);\n\n (, uint256 ghoMinted) = IUsdxlToken(USDXL_TOKEN).getFacilitatorBucket(address(this));\n uint256 underlyingBalance = IERC20(UNDERLYING_ASSET).balanceOf(address(this));\n if (underlyingBalance > 0) {\n IERC20(UNDERLYING_ASSET).safeTransfer(_usdxlTreasury, underlyingBalance);\n }\n\n emit Seized(msg.sender, _usdxlTreasury, underlyingBalance, ghoMinted);\n return underlyingBalance;\n }\n\n /// @inheritdoc IGsm\n function burnAfterSeize(uint256 amount) external onlyRole(LIQUIDATOR_ROLE) returns (uint256) {\n require(_isSeized, 'GSM_NOT_SEIZED');\n require(amount > 0, 'INVALID_AMOUNT');\n\n (, uint256 ghoMinted) = IUsdxlToken(USDXL_TOKEN).getFacilitatorBucket(address(this));\n if (amount > ghoMinted) {\n amount = ghoMinted;\n }\n IUsdxlToken(USDXL_TOKEN).transferFrom(msg.sender, address(this), amount);\n IUsdxlToken(USDXL_TOKEN).burn(amount);\n\n emit BurnAfterSeize(msg.sender, amount, (ghoMinted - amount));\n return amount;\n }\n\n /// @inheritdoc IGsm\n function updateFeeStrategy(address feeStrategy) external onlyRole(CONFIGURATOR_ROLE) {\n _updateFeeStrategy(feeStrategy);\n }\n\n /// @inheritdoc IGsm\n function updateExposureCap(uint128 exposureCap) external onlyRole(CONFIGURATOR_ROLE) {\n _updateExposureCap(exposureCap);\n }\n\n /// @inheritdoc IUsdxlFacilitator\n function distributeFeesToTreasury() public virtual override {\n uint256 accruedFees = _accruedFees;\n if (accruedFees > 0) {\n _accruedFees = 0;\n IERC20(USDXL_TOKEN).transfer(_usdxlTreasury, accruedFees);\n emit FeesDistributedToTreasury(_usdxlTreasury, USDXL_TOKEN, accruedFees);\n }\n }\n\n /// @inheritdoc IUsdxlFacilitator\n function updateUsdxlTreasury(\n address newUsdxlTreasury\n ) external override onlyRole(CONFIGURATOR_ROLE) {\n _updateUsdxlTreasury(newUsdxlTreasury);\n }\n\n /// @inheritdoc IGsm\n function DOMAIN_SEPARATOR() external view returns (bytes32) {\n return _domainSeparatorV4();\n }\n\n /// @inheritdoc IGsm\n function getGhoAmountForBuyAsset(\n uint256 minAssetAmount\n ) external view returns (uint256, uint256, uint256, uint256) {\n return _calculateGhoAmountForBuyAsset(minAssetAmount);\n }\n\n /// @inheritdoc IGsm\n function getGhoAmountForSellAsset(\n uint256 maxAssetAmount\n ) external view returns (uint256, uint256, uint256, uint256) {\n return _calculateGhoAmountForSellAsset(maxAssetAmount);\n }\n\n /// @inheritdoc IGsm\n function getAssetAmountForBuyAsset(\n uint256 maxGhoAmount\n ) external view returns (uint256, uint256, uint256, uint256) {\n bool withFee = _feeStrategy != address(0);\n uint256 grossAmount = withFee\n ? IGsmFeeStrategy(_feeStrategy).getGrossAmountFromTotalBought(maxGhoAmount)\n : maxGhoAmount;\n // round down so maxGhoAmount is guaranteed\n uint256 assetAmount = IGsmPriceStrategy(PRICE_STRATEGY).getGhoPriceInAsset(grossAmount, false);\n uint256 finalGrossAmount = IGsmPriceStrategy(PRICE_STRATEGY).getAssetPriceInGho(\n assetAmount,\n true\n );\n uint256 finalFee = withFee ? IGsmFeeStrategy(_feeStrategy).getBuyFee(finalGrossAmount) : 0;\n return (assetAmount, finalGrossAmount + finalFee, finalGrossAmount, finalFee);\n }\n\n /// @inheritdoc IGsm\n function getAssetAmountForSellAsset(\n uint256 minGhoAmount\n ) external view returns (uint256, uint256, uint256, uint256) {\n bool withFee = _feeStrategy != address(0);\n uint256 grossAmount = withFee\n ? IGsmFeeStrategy(_feeStrategy).getGrossAmountFromTotalSold(minGhoAmount)\n : minGhoAmount;\n // round up so minGhoAmount is guaranteed\n uint256 assetAmount = IGsmPriceStrategy(PRICE_STRATEGY).getGhoPriceInAsset(grossAmount, true);\n uint256 finalGrossAmount = IGsmPriceStrategy(PRICE_STRATEGY).getAssetPriceInGho(\n assetAmount,\n false\n );\n uint256 finalFee = withFee ? IGsmFeeStrategy(_feeStrategy).getSellFee(finalGrossAmount) : 0;\n return (assetAmount, finalGrossAmount - finalFee, finalGrossAmount, finalFee);\n }\n\n /// @inheritdoc IGsm\n function getAvailableUnderlyingExposure() external view returns (uint256) {\n return _exposureCap > _currentExposure ? _exposureCap - _currentExposure : 0;\n }\n\n /// @inheritdoc IGsm\n function getExposureCap() external view returns (uint128) {\n return _exposureCap;\n }\n\n /// @inheritdoc IGsm\n function getAvailableLiquidity() external view returns (uint256) {\n return _currentExposure;\n }\n\n /// @inheritdoc IGsm\n function getFeeStrategy() external view returns (address) {\n return _feeStrategy;\n }\n\n /// @inheritdoc IGsm\n function getAccruedFees() external view returns (uint256) {\n return _accruedFees;\n }\n\n /// @inheritdoc IGsm\n function getIsFrozen() external view returns (bool) {\n return _isFrozen;\n }\n\n /// @inheritdoc IGsm\n function getIsSeized() external view returns (bool) {\n return _isSeized;\n }\n\n /// @inheritdoc IGsm\n function canSwap() external view returns (bool) {\n return !_isFrozen && !_isSeized;\n }\n\n /// @inheritdoc IUsdxlFacilitator\n function getUsdxlTreasury() external view override returns (address) {\n return _usdxlTreasury;\n }\n\n /// @inheritdoc IGsm\n function GSM_REVISION() public pure virtual override returns (uint256) {\n return 1;\n }\n\n /**\n * @dev Buys an underlying asset with GHO\n * @param originator The originator of the request\n * @param minAmount The minimum amount of the underlying asset desired for purchase\n * @param receiver The recipient address of the underlying asset being purchased\n * @return The amount of underlying asset bought\n * @return The amount of GHO sold by the user\n */\n function _buyAsset(\n address originator,\n uint256 minAmount,\n address receiver\n ) internal returns (uint256, uint256) {\n (\n uint256 assetAmount,\n uint256 ghoSold,\n uint256 grossAmount,\n uint256 fee\n ) = _calculateGhoAmountForBuyAsset(minAmount);\n\n _beforeBuyAsset(originator, assetAmount, receiver);\n\n require(assetAmount > 0, 'INVALID_AMOUNT');\n require(_currentExposure >= assetAmount, 'INSUFFICIENT_AVAILABLE_EXOGENOUS_ASSET_LIQUIDITY');\n\n _currentExposure -= uint128(assetAmount);\n _accruedFees += fee.toUint128();\n IUsdxlToken(USDXL_TOKEN).transferFrom(originator, address(this), ghoSold);\n IUsdxlToken(USDXL_TOKEN).burn(grossAmount);\n IERC20(UNDERLYING_ASSET).safeTransfer(receiver, assetAmount);\n\n _afterBuyAsset(originator, assetAmount, receiver);\n\n emit BuyAsset(originator, receiver, assetAmount, ghoSold, fee);\n return (assetAmount, ghoSold);\n }\n\n /**\n * @dev Hook that is called before `buyAsset`.\n * @dev This can be used to add custom logic\n * @param originator Originator of the request\n * @param amount The amount of the underlying asset desired for purchase\n * @param receiver Recipient address of the underlying asset being purchased\n */\n function _beforeBuyAsset(address originator, uint256 amount, address receiver) internal virtual {}\n\n /**\n * @dev Hook that is called after `buyAsset`.\n * @dev This can be used to add custom logic\n * @param originator Originator of the request\n * @param amount The amount of the underlying asset desired for purchase\n * @param receiver Recipient address of the underlying asset being purchased\n */\n function _afterBuyAsset(address originator, uint256 amount, address receiver) internal virtual {}\n\n /**\n * @dev Sells an underlying asset for GHO\n * @param originator The originator of the request\n * @param maxAmount The maximum amount of the underlying asset desired to sell\n * @param receiver The recipient address of the GHO being purchased\n * @return The amount of underlying asset sold\n * @return The amount of GHO bought by the user\n */\n function _sellAsset(\n address originator,\n uint256 maxAmount,\n address receiver\n ) internal returns (uint256, uint256) {\n (\n uint256 assetAmount,\n uint256 ghoBought,\n uint256 grossAmount,\n uint256 fee\n ) = _calculateGhoAmountForSellAsset(maxAmount);\n\n _beforeSellAsset(originator, assetAmount, receiver);\n\n require(assetAmount > 0, 'INVALID_AMOUNT');\n require(_currentExposure + assetAmount <= _exposureCap, 'EXOGENOUS_ASSET_EXPOSURE_TOO_HIGH');\n\n _currentExposure += uint128(assetAmount);\n _accruedFees += fee.toUint128();\n IERC20(UNDERLYING_ASSET).safeTransferFrom(originator, address(this), assetAmount);\n\n IUsdxlToken(USDXL_TOKEN).mint(address(this), grossAmount);\n IUsdxlToken(USDXL_TOKEN).transfer(receiver, ghoBought);\n\n _afterSellAsset(originator, assetAmount, receiver);\n\n emit SellAsset(originator, receiver, assetAmount, grossAmount, fee);\n return (assetAmount, ghoBought);\n }\n\n /**\n * @dev Hook that is called before `sellAsset`.\n * @dev This can be used to add custom logic\n * @param originator Originator of the request\n * @param amount The amount of the underlying asset desired to sell\n * @param receiver Recipient address of the GHO being purchased\n */\n function _beforeSellAsset(\n address originator,\n uint256 amount,\n address receiver\n ) internal virtual {}\n\n /**\n * @dev Hook that is called after `sellAsset`.\n * @dev This can be used to add custom logic\n * @param originator Originator of the request\n * @param amount The amount of the underlying asset desired to sell\n * @param receiver Recipient address of the GHO being purchased\n */\n function _afterSellAsset(\n address originator,\n uint256 amount,\n address receiver\n ) internal virtual {}\n\n /**\n * @dev Returns the amount of GHO sold in exchange of buying underlying asset\n * @param assetAmount The amount of underlying asset to buy\n * @return The exact amount of asset the user purchases\n * @return The total amount of GHO the user sells (gross amount in GHO plus fee)\n * @return The gross amount of GHO\n * @return The fee amount in GHO, applied on top of gross amount of GHO\n */\n function _calculateGhoAmountForBuyAsset(\n uint256 assetAmount\n ) internal view returns (uint256, uint256, uint256, uint256) {\n bool withFee = _feeStrategy != address(0);\n // pick the highest GHO amount possible for given asset amount\n uint256 grossAmount = IGsmPriceStrategy(PRICE_STRATEGY).getAssetPriceInGho(assetAmount, true);\n uint256 fee = withFee ? IGsmFeeStrategy(_feeStrategy).getBuyFee(grossAmount) : 0;\n uint256 ghoSold = grossAmount + fee;\n uint256 finalGrossAmount = withFee\n ? IGsmFeeStrategy(_feeStrategy).getGrossAmountFromTotalBought(ghoSold)\n : ghoSold;\n // pick the lowest asset amount possible for given GHO amount\n uint256 finalAssetAmount = IGsmPriceStrategy(PRICE_STRATEGY).getGhoPriceInAsset(\n finalGrossAmount,\n false\n );\n uint256 finalFee = ghoSold - finalGrossAmount;\n return (finalAssetAmount, finalGrossAmount + finalFee, finalGrossAmount, finalFee);\n }\n\n /**\n * @dev Returns the amount of GHO bought in exchange of a given amount of underlying asset\n * @param assetAmount The amount of underlying asset to sell\n * @return The exact amount of asset the user sells\n * @return The total amount of GHO the user buys (gross amount in GHO minus fee)\n * @return The gross amount of GHO\n * @return The fee amount in GHO, applied to the gross amount of GHO\n */\n function _calculateGhoAmountForSellAsset(\n uint256 assetAmount\n ) internal view returns (uint256, uint256, uint256, uint256) {\n bool withFee = _feeStrategy != address(0);\n // pick the lowest GHO amount possible for given asset amount\n uint256 grossAmount = IGsmPriceStrategy(PRICE_STRATEGY).getAssetPriceInGho(assetAmount, false);\n uint256 fee = withFee ? IGsmFeeStrategy(_feeStrategy).getSellFee(grossAmount) : 0;\n uint256 ghoBought = grossAmount - fee;\n uint256 finalGrossAmount = withFee\n ? IGsmFeeStrategy(_feeStrategy).getGrossAmountFromTotalSold(ghoBought)\n : ghoBought;\n // pick the highest asset amount possible for given GHO amount\n uint256 finalAssetAmount = IGsmPriceStrategy(PRICE_STRATEGY).getGhoPriceInAsset(\n finalGrossAmount,\n true\n );\n uint256 finalFee = finalGrossAmount - ghoBought;\n return (finalAssetAmount, finalGrossAmount - finalFee, finalGrossAmount, finalFee);\n }\n\n /**\n * @dev Updates Fee Strategy\n * @param feeStrategy The address of the new Fee Strategy\n */\n function _updateFeeStrategy(address feeStrategy) internal {\n address oldFeeStrategy = _feeStrategy;\n _feeStrategy = feeStrategy;\n emit FeeStrategyUpdated(oldFeeStrategy, feeStrategy);\n }\n\n /**\n * @dev Updates Exposure Cap\n * @param exposureCap The value of the new Exposure Cap\n */\n function _updateExposureCap(uint128 exposureCap) internal {\n uint128 oldExposureCap = _exposureCap;\n _exposureCap = exposureCap;\n emit ExposureCapUpdated(oldExposureCap, exposureCap);\n }\n\n /**\n * @dev Updates GHO Treasury Address\n * @param newUsdxlTreasury The address of the new GHO Treasury\n */\n function _updateUsdxlTreasury(address newUsdxlTreasury) internal {\n require(newUsdxlTreasury != address(0), 'ZERO_ADDRESS_NOT_VALID');\n address oldUsdxlTreasury = _usdxlTreasury;\n _usdxlTreasury = newUsdxlTreasury;\n emit UsdxlTreasuryUpdated(oldUsdxlTreasury, newUsdxlTreasury);\n }\n\n /// @inheritdoc VersionedInitializable\n function getRevision() internal pure virtual override returns (uint256) {\n return GSM_REVISION();\n }\n}\n"},"lib/hypurrfi-deployments/lib/aave-v3-core/contracts/protocol/libraries/types/DataTypes.sol":{"content":"// SPDX-License-Identifier: BUSL-1.1\npragma solidity ^0.8.0;\n\nlibrary DataTypes {\n struct ReserveData {\n //stores the reserve configuration\n ReserveConfigurationMap configuration;\n //the liquidity index. Expressed in ray\n uint128 liquidityIndex;\n //the current supply rate. Expressed in ray\n uint128 currentLiquidityRate;\n //variable borrow index. Expressed in ray\n uint128 variableBorrowIndex;\n //the current variable borrow rate. Expressed in ray\n uint128 currentVariableBorrowRate;\n //the current stable borrow rate. Expressed in ray\n uint128 currentStableBorrowRate;\n //timestamp of last update\n uint40 lastUpdateTimestamp;\n //the id of the reserve. Represents the position in the list of the active reserves\n uint16 id;\n //aToken address\n address aTokenAddress;\n //stableDebtToken address\n address stableDebtTokenAddress;\n //variableDebtToken address\n address variableDebtTokenAddress;\n //address of the interest rate strategy\n address interestRateStrategyAddress;\n //the current treasury balance, scaled\n uint128 accruedToTreasury;\n //the outstanding unbacked aTokens minted through the bridging feature\n uint128 unbacked;\n //the outstanding debt borrowed against this asset in isolation mode\n uint128 isolationModeTotalDebt;\n }\n\n struct ReserveConfigurationMap {\n //bit 0-15: LTV\n //bit 16-31: Liq. threshold\n //bit 32-47: Liq. bonus\n //bit 48-55: Decimals\n //bit 56: reserve is active\n //bit 57: reserve is frozen\n //bit 58: borrowing is enabled\n //bit 59: stable rate borrowing enabled\n //bit 60: asset is paused\n //bit 61: borrowing in isolation mode is enabled\n //bit 62-63: reserved\n //bit 64-79: reserve factor\n //bit 80-115 borrow cap in whole tokens, borrowCap == 0 => no cap\n //bit 116-151 supply cap in whole tokens, supplyCap == 0 => no cap\n //bit 152-167 liquidation protocol fee\n //bit 168-175 eMode category\n //bit 176-211 unbacked mint cap in whole tokens, unbackedMintCap == 0 => minting disabled\n //bit 212-251 debt ceiling for isolation mode with (ReserveConfiguration::DEBT_CEILING_DECIMALS) decimals\n //bit 252-255 unused\n\n uint256 data;\n }\n\n struct UserConfigurationMap {\n /**\n * @dev Bitmap of the users collaterals and borrows. It is divided in pairs of bits, one pair per asset.\n * The first bit indicates if an asset is used as collateral by the user, the second whether an\n * asset is borrowed by the user.\n */\n uint256 data;\n }\n\n struct EModeCategory {\n // each eMode category has a custom ltv and liquidation threshold\n uint16 ltv;\n uint16 liquidationThreshold;\n uint16 liquidationBonus;\n // each eMode category may or may not have a custom oracle to override the individual assets price oracles\n address priceSource;\n string label;\n }\n\n enum InterestRateMode {NONE, STABLE, VARIABLE}\n\n struct ReserveCache {\n uint256 currScaledVariableDebt;\n uint256 nextScaledVariableDebt;\n uint256 currPrincipalStableDebt;\n uint256 currAvgStableBorrowRate;\n uint256 currTotalStableDebt;\n uint256 nextAvgStableBorrowRate;\n uint256 nextTotalStableDebt;\n uint256 currLiquidityIndex;\n uint256 nextLiquidityIndex;\n uint256 currVariableBorrowIndex;\n uint256 nextVariableBorrowIndex;\n uint256 currLiquidityRate;\n uint256 currVariableBorrowRate;\n uint256 reserveFactor;\n ReserveConfigurationMap reserveConfiguration;\n address aTokenAddress;\n address stableDebtTokenAddress;\n address variableDebtTokenAddress;\n uint40 reserveLastUpdateTimestamp;\n uint40 stableDebtLastUpdateTimestamp;\n }\n\n struct ExecuteLiquidationCallParams {\n uint256 reservesCount;\n uint256 debtToCover;\n address collateralAsset;\n address debtAsset;\n address user;\n bool receiveAToken;\n address priceOracle;\n uint8 userEModeCategory;\n address priceOracleSentinel;\n }\n\n struct ExecuteSupplyParams {\n address asset;\n uint256 amount;\n address onBehalfOf;\n uint16 referralCode;\n }\n\n struct ExecuteBorrowParams {\n address asset;\n address user;\n address onBehalfOf;\n uint256 amount;\n InterestRateMode interestRateMode;\n uint16 referralCode;\n bool releaseUnderlying;\n uint256 maxStableRateBorrowSizePercent;\n uint256 reservesCount;\n address oracle;\n uint8 userEModeCategory;\n address priceOracleSentinel;\n }\n\n struct ExecuteRepayParams {\n address asset;\n uint256 amount;\n InterestRateMode interestRateMode;\n address onBehalfOf;\n bool useATokens;\n }\n\n struct ExecuteWithdrawParams {\n address asset;\n uint256 amount;\n address to;\n uint256 reservesCount;\n address oracle;\n uint8 userEModeCategory;\n }\n\n struct ExecuteSetUserEModeParams {\n uint256 reservesCount;\n address oracle;\n uint8 categoryId;\n }\n\n struct FinalizeTransferParams {\n address asset;\n address from;\n address to;\n uint256 amount;\n uint256 balanceFromBefore;\n uint256 balanceToBefore;\n uint256 reservesCount;\n address oracle;\n uint8 fromEModeCategory;\n }\n\n struct FlashloanParams {\n address receiverAddress;\n address[] assets;\n uint256[] amounts;\n uint256[] interestRateModes;\n address onBehalfOf;\n bytes params;\n uint16 referralCode;\n uint256 flashLoanPremiumToProtocol;\n uint256 flashLoanPremiumTotal;\n uint256 maxStableRateBorrowSizePercent;\n uint256 reservesCount;\n address addressesProvider;\n uint8 userEModeCategory;\n bool isAuthorizedFlashBorrower;\n }\n\n struct FlashloanSimpleParams {\n address receiverAddress;\n address asset;\n uint256 amount;\n bytes params;\n uint16 referralCode;\n uint256 flashLoanPremiumToProtocol;\n uint256 flashLoanPremiumTotal;\n }\n\n struct FlashLoanRepaymentParams {\n uint256 amount;\n uint256 totalPremium;\n uint256 flashLoanPremiumToProtocol;\n address asset;\n address receiverAddress;\n uint16 referralCode;\n }\n\n struct CalculateUserAccountDataParams {\n UserConfigurationMap userConfig;\n uint256 reservesCount;\n address user;\n address oracle;\n uint8 userEModeCategory;\n }\n\n struct ValidateBorrowParams {\n ReserveCache reserveCache;\n UserConfigurationMap userConfig;\n address asset;\n address userAddress;\n uint256 amount;\n InterestRateMode interestRateMode;\n uint256 maxStableLoanPercent;\n uint256 reservesCount;\n address oracle;\n uint8 userEModeCategory;\n address priceOracleSentinel;\n bool isolationModeActive;\n address isolationModeCollateralAddress;\n uint256 isolationModeDebtCeiling;\n }\n\n struct ValidateLiquidationCallParams {\n ReserveCache debtReserveCache;\n uint256 totalDebt;\n uint256 healthFactor;\n address priceOracleSentinel;\n }\n\n struct CalculateInterestRatesParams {\n uint256 unbacked;\n uint256 liquidityAdded;\n uint256 liquidityTaken;\n uint256 totalStableDebt;\n uint256 totalVariableDebt;\n uint256 averageStableBorrowRate;\n uint256 reserveFactor;\n address reserve;\n address aToken;\n }\n\n struct InitReserveParams {\n address asset;\n address aTokenAddress;\n address stableDebtAddress;\n address variableDebtAddress;\n address interestRateStrategyAddress;\n uint16 reservesCount;\n uint16 maxNumberReserves;\n }\n}\n"},"lib/hypurrfi-deployments/lib/aave-v3-core/contracts/interfaces/IScaledBalanceToken.sol":{"content":"// SPDX-License-Identifier: AGPL-3.0\npragma solidity ^0.8.0;\n\n/**\n * @title IScaledBalanceToken\n * @author Aave\n * @notice Defines the basic interface for a scaled-balance token.\n */\ninterface IScaledBalanceToken {\n /**\n * @dev Emitted after the mint action\n * @param caller The address performing the mint\n * @param onBehalfOf The address of the user that will receive the minted tokens\n * @param value The scaled-up amount being minted (based on user entered amount and balance increase from interest)\n * @param balanceIncrease The increase in scaled-up balance since the last action of 'onBehalfOf'\n * @param index The next liquidity index of the reserve\n */\n event Mint(\n address indexed caller,\n address indexed onBehalfOf,\n uint256 value,\n uint256 balanceIncrease,\n uint256 index\n );\n\n /**\n * @dev Emitted after the burn action\n * @dev If the burn function does not involve a transfer of the underlying asset, the target defaults to zero address\n * @param from The address from which the tokens will be burned\n * @param target The address that will receive the underlying, if any\n * @param value The scaled-up amount being burned (user entered amount - balance increase from interest)\n * @param balanceIncrease The increase in scaled-up balance since the last action of 'from'\n * @param index The next liquidity index of the reserve\n */\n event Burn(\n address indexed from,\n address indexed target,\n uint256 value,\n uint256 balanceIncrease,\n uint256 index\n );\n\n /**\n * @notice Returns the scaled balance of the user.\n * @dev The scaled balance is the sum of all the updated stored balance divided by the reserve's liquidity index\n * at the moment of the update\n * @param user The user whose balance is calculated\n * @return The scaled balance of the user\n */\n function scaledBalanceOf(address user) external view returns (uint256);\n\n /**\n * @notice Returns the scaled balance of the user and the scaled total supply.\n * @param user The address of the user\n * @return The scaled balance of the user\n * @return The scaled total supply\n */\n function getScaledUserBalanceAndSupply(address user) external view returns (uint256, uint256);\n\n /**\n * @notice Returns the scaled total supply of the scaled balance token. Represents sum(debt/index)\n * @return The scaled total supply\n */\n function scaledTotalSupply() external view returns (uint256);\n\n /**\n * @notice Returns last index interest was accrued to the user's balance\n * @param user The address of the user\n * @return The last index interest was accrued to the user's balance, expressed in ray\n */\n function getPreviousIndex(address user) external view returns (uint256);\n}\n"},"lib/hypurrfi-deployments/lib/aave-v3-core/contracts/interfaces/IInitializableAToken.sol":{"content":"// SPDX-License-Identifier: AGPL-3.0\npragma solidity ^0.8.0;\n\nimport {IAaveIncentivesController} from './IAaveIncentivesController.sol';\nimport {IPool} from './IPool.sol';\n\n/**\n * @title IInitializableAToken\n * @author Aave\n * @notice Interface for the initialize function on AToken\n */\ninterface IInitializableAToken {\n /**\n * @dev Emitted when an aToken is initialized\n * @param underlyingAsset The address of the underlying asset\n * @param pool The address of the associated pool\n * @param treasury The address of the treasury\n * @param incentivesController The address of the incentives controller for this aToken\n * @param aTokenDecimals The decimals of the underlying\n * @param aTokenName The name of the aToken\n * @param aTokenSymbol The symbol of the aToken\n * @param params A set of encoded parameters for additional initialization\n */\n event Initialized(\n address indexed underlyingAsset,\n address indexed pool,\n address treasury,\n address incentivesController,\n uint8 aTokenDecimals,\n string aTokenName,\n string aTokenSymbol,\n bytes params\n );\n\n /**\n * @notice Initializes the aToken\n * @param pool The pool contract that is initializing this contract\n * @param treasury The address of the Aave treasury, receiving the fees on this aToken\n * @param underlyingAsset The address of the underlying asset of this aToken (E.g. WETH for aWETH)\n * @param incentivesController The smart contract managing potential incentives distribution\n * @param aTokenDecimals The decimals of the aToken, same as the underlying asset's\n * @param aTokenName The name of the aToken\n * @param aTokenSymbol The symbol of the aToken\n * @param params A set of encoded parameters for additional initialization\n */\n function initialize(\n IPool pool,\n address treasury,\n address underlyingAsset,\n IAaveIncentivesController incentivesController,\n uint8 aTokenDecimals,\n string calldata aTokenName,\n string calldata aTokenSymbol,\n bytes calldata params\n ) external;\n}\n"},"lib/openzeppelin-contracts/contracts/token/ERC20/IERC20.sol":{"content":"// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.6.0) (token/ERC20/IERC20.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @dev Interface of the ERC20 standard as defined in the EIP.\n */\ninterface IERC20 {\n /**\n * @dev Emitted when `value` tokens are moved from one account (`from`) to\n * another (`to`).\n *\n * Note that `value` may be zero.\n */\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n /**\n * @dev Emitted when the allowance of a `spender` for an `owner` is set by\n * a call to {approve}. `value` is the new allowance.\n */\n event Approval(address indexed owner, address indexed spender, uint256 value);\n\n /**\n * @dev Returns the amount of tokens in existence.\n */\n function totalSupply() external view returns (uint256);\n\n /**\n * @dev Returns the amount of tokens owned by `account`.\n */\n function balanceOf(address account) external view returns (uint256);\n\n /**\n * @dev Moves `amount` tokens from the caller's account to `to`.\n *\n * Returns a boolean value indicating whether the operation succeeded.\n *\n * Emits a {Transfer} event.\n */\n function transfer(address to, uint256 amount) external returns (bool);\n\n /**\n * @dev Returns the remaining number of tokens that `spender` will be\n * allowed to spend on behalf of `owner` through {transferFrom}. This is\n * zero by default.\n *\n * This value changes when {approve} or {transferFrom} are called.\n */\n function allowance(address owner, address spender) external view returns (uint256);\n\n /**\n * @dev Sets `amount` as the allowance of `spender` over the caller's tokens.\n *\n * Returns a boolean value indicating whether the operation succeeded.\n *\n * IMPORTANT: Beware that changing an allowance with this method brings the risk\n * that someone may use both the old and the new allowance by unfortunate\n * transaction ordering. One possible solution to mitigate this race\n * condition is to first reduce the spender's allowance to 0 and set the\n * desired value afterwards:\n * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729\n *\n * Emits an {Approval} event.\n */\n function approve(address spender, uint256 amount) external returns (bool);\n\n /**\n * @dev Moves `amount` tokens from `from` to `to` using the\n * allowance mechanism. `amount` is then deducted from the caller's\n * allowance.\n *\n * Returns a boolean value indicating whether the operation succeeded.\n *\n * Emits a {Transfer} event.\n */\n function transferFrom(\n address from,\n address to,\n uint256 amount\n ) external returns (bool);\n}\n"},"lib/openzeppelin-contracts/contracts/access/IAccessControl.sol":{"content":"// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (access/IAccessControl.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @dev External interface of AccessControl declared to support ERC165 detection.\n */\ninterface IAccessControl {\n /**\n * @dev Emitted when `newAdminRole` is set as ``role``'s admin role, replacing `previousAdminRole`\n *\n * `DEFAULT_ADMIN_ROLE` is the starting admin for all roles, despite\n * {RoleAdminChanged} not being emitted signaling this.\n *\n * _Available since v3.1._\n */\n event RoleAdminChanged(bytes32 indexed role, bytes32 indexed previousAdminRole, bytes32 indexed newAdminRole);\n\n /**\n * @dev Emitted when `account` is granted `role`.\n *\n * `sender` is the account that originated the contract call, an admin role\n * bearer except when using {AccessControl-_setupRole}.\n */\n event RoleGranted(bytes32 indexed role, address indexed account, address indexed sender);\n\n /**\n * @dev Emitted when `account` is revoked `role`.\n *\n * `sender` is the account that originated the contract call:\n * - if using `revokeRole`, it is the admin role bearer\n * - if using `renounceRole`, it is the role bearer (i.e. `account`)\n */\n event RoleRevoked(bytes32 indexed role, address indexed account, address indexed sender);\n\n /**\n * @dev Returns `true` if `account` has been granted `role`.\n */\n function hasRole(bytes32 role, address account) external view returns (bool);\n\n /**\n * @dev Returns the admin role that controls `role`. See {grantRole} and\n * {revokeRole}.\n *\n * To change a role's admin, use {AccessControl-_setRoleAdmin}.\n */\n function getRoleAdmin(bytes32 role) external view returns (bytes32);\n\n /**\n * @dev Grants `role` to `account`.\n *\n * If `account` had not been already granted `role`, emits a {RoleGranted}\n * event.\n *\n * Requirements:\n *\n * - the caller must have ``role``'s admin role.\n */\n function grantRole(bytes32 role, address account) external;\n\n /**\n * @dev Revokes `role` from `account`.\n *\n * If `account` had been granted `role`, emits a {RoleRevoked} event.\n *\n * Requirements:\n *\n * - the caller must have ``role``'s admin role.\n */\n function revokeRole(bytes32 role, address account) external;\n\n /**\n * @dev Revokes `role` from the calling account.\n *\n * Roles are often managed via {grantRole} and {revokeRole}: this function's\n * purpose is to provide a mechanism for accounts to lose their privileges\n * if they are compromised (such as when a trusted device is misplaced).\n *\n * If the calling account had been granted `role`, emits a {RoleRevoked}\n * event.\n *\n * Requirements:\n *\n * - the caller must be `account`.\n */\n function renounceRole(bytes32 role, address account) external;\n}\n"},"lib/openzeppelin-contracts/contracts/access/Ownable.sol":{"content":"// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.7.0) (access/Ownable.sol)\n\npragma solidity ^0.8.0;\n\nimport \"../utils/Context.sol\";\n\n/**\n * @dev Contract module which provides a basic access control mechanism, where\n * there is an account (an owner) that can be granted exclusive access to\n * specific functions.\n *\n * By default, the owner account will be the one that deploys the contract. This\n * can later be changed with {transferOwnership}.\n *\n * This module is used through inheritance. It will make available the modifier\n * `onlyOwner`, which can be applied to your functions to restrict their use to\n * the owner.\n */\nabstract contract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);\n\n /**\n * @dev Initializes the contract setting the deployer as the initial owner.\n */\n constructor() {\n _transferOwnership(_msgSender());\n }\n\n /**\n * @dev Throws if called by any account other than the owner.\n */\n modifier onlyOwner() {\n _checkOwner();\n _;\n }\n\n /**\n * @dev Returns the address of the current owner.\n */\n function owner() public view virtual returns (address) {\n return _owner;\n }\n\n /**\n * @dev Throws if the sender is not the owner.\n */\n function _checkOwner() internal view virtual {\n require(owner() == _msgSender(), \"Ownable: caller is not the owner\");\n }\n\n /**\n * @dev Leaves the contract without owner. It will not be possible to call\n * `onlyOwner` functions anymore. Can only be called by the current owner.\n *\n * NOTE: Renouncing ownership will leave the contract without an owner,\n * thereby removing any functionality that is only available to the owner.\n */\n function renounceOwnership() public virtual onlyOwner {\n _transferOwnership(address(0));\n }\n\n /**\n * @dev Transfers ownership of the contract to a new account (`newOwner`).\n * Can only be called by the current owner.\n */\n function transferOwnership(address newOwner) public virtual onlyOwner {\n require(newOwner != address(0), \"Ownable: new owner is the zero address\");\n _transferOwnership(newOwner);\n }\n\n /**\n * @dev Transfers ownership of the contract to a new account (`newOwner`).\n * Internal function without access restriction.\n */\n function _transferOwnership(address newOwner) internal virtual {\n address oldOwner = _owner;\n _owner = newOwner;\n emit OwnershipTransferred(oldOwner, newOwner);\n }\n}\n"},"lib/openzeppelin-contracts/contracts/proxy/ERC1967/ERC1967Proxy.sol":{"content":"// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.7.0) (proxy/ERC1967/ERC1967Proxy.sol)\n\npragma solidity ^0.8.0;\n\nimport \"../Proxy.sol\";\nimport \"./ERC1967Upgrade.sol\";\n\n/**\n * @dev This contract implements an upgradeable proxy. It is upgradeable because calls are delegated to an\n * implementation address that can be changed. This address is stored in storage in the location specified by\n * https://eips.ethereum.org/EIPS/eip-1967[EIP1967], so that it doesn't conflict with the storage layout of the\n * implementation behind the proxy.\n */\ncontract ERC1967Proxy is Proxy, ERC1967Upgrade {\n /**\n * @dev Initializes the upgradeable proxy with an initial implementation specified by `_logic`.\n *\n * If `_data` is nonempty, it's used as data in a delegate call to `_logic`. This will typically be an encoded\n * function call, and allows initializing the storage of the proxy like a Solidity constructor.\n */\n constructor(address _logic, bytes memory _data) payable {\n _upgradeToAndCall(_logic, _data, false);\n }\n\n /**\n * @dev Returns the current implementation address.\n */\n function _implementation() internal view virtual override returns (address impl) {\n return ERC1967Upgrade._getImplementation();\n }\n}\n"},"lib/hypurrfi-deployments/lib/aave-v3-core/contracts/protocol/libraries/aave-upgradeability/VersionedInitializable.sol":{"content":"// SPDX-License-Identifier: AGPL-3.0\npragma solidity 0.8.10;\n\n/**\n * @title VersionedInitializable\n * @author Aave, inspired by the OpenZeppelin Initializable contract\n * @notice Helper contract to implement initializer functions. To use it, replace\n * the constructor with a function that has the `initializer` modifier.\n * @dev WARNING: Unlike constructors, initializer functions must be manually\n * invoked. This applies both to deploying an Initializable contract, as well\n * as extending an Initializable contract via inheritance.\n * WARNING: When used with inheritance, manual care must be taken to not invoke\n * a parent initializer twice, or ensure that all initializers are idempotent,\n * because this is not dealt with automatically as with constructors.\n */\nabstract contract VersionedInitializable {\n /**\n * @dev Indicates that the contract has been initialized.\n */\n uint256 private lastInitializedRevision = 0;\n\n /**\n * @dev Indicates that the contract is in the process of being initialized.\n */\n bool private initializing;\n\n /**\n * @dev Modifier to use in the initializer function of a contract.\n */\n modifier initializer() {\n uint256 revision = getRevision();\n require(\n initializing || isConstructor() || revision > lastInitializedRevision,\n 'Contract instance has already been initialized'\n );\n\n bool isTopLevelCall = !initializing;\n if (isTopLevelCall) {\n initializing = true;\n lastInitializedRevision = revision;\n }\n\n _;\n\n if (isTopLevelCall) {\n initializing = false;\n }\n }\n\n /**\n * @notice Returns the revision number of the contract\n * @dev Needs to be defined in the inherited class as a constant.\n * @return The revision number\n */\n function getRevision() internal pure virtual returns (uint256);\n\n /**\n * @notice Returns true if and only if the function is running in the constructor\n * @return True if the function is running in the constructor\n */\n function isConstructor() private view returns (bool) {\n // extcodesize checks the size of the code stored in an address, and\n // address returns the current address. Since the code is still not\n // deployed when running a constructor, any checks on its code size will\n // yield zero, making it an effective way to detect if a contract is\n // under construction or not.\n uint256 cs;\n //solium-disable-next-line\n assembly {\n cs := extcodesize(address())\n }\n return cs == 0;\n }\n\n // Reserved storage space to allow for layout changes in the future.\n uint256[50] private ______gap;\n}\n"},"lib/openzeppelin-contracts/contracts/utils/cryptography/EIP712.sol":{"content":"// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.8.0) (utils/cryptography/EIP712.sol)\n\npragma solidity ^0.8.0;\n\nimport \"./ECDSA.sol\";\n\n/**\n * @dev https://eips.ethereum.org/EIPS/eip-712[EIP 712] is a standard for hashing and signing of typed structured data.\n *\n * The encoding specified in the EIP is very generic, and such a generic implementation in Solidity is not feasible,\n * thus this contract does not implement the encoding itself. Protocols need to implement the type-specific encoding\n * they need in their contracts using a combination of `abi.encode` and `keccak256`.\n *\n * This contract implements the EIP 712 domain separator ({_domainSeparatorV4}) that is used as part of the encoding\n * scheme, and the final step of the encoding to obtain the message digest that is then signed via ECDSA\n * ({_hashTypedDataV4}).\n *\n * The implementation of the domain separator was designed to be as efficient as possible while still properly updating\n * the chain id to protect against replay attacks on an eventual fork of the chain.\n *\n * NOTE: This contract implements the version of the encoding known as \"v4\", as implemented by the JSON RPC method\n * https://docs.metamask.io/guide/signing-data.html[`eth_signTypedDataV4` in MetaMask].\n *\n * _Available since v3.4._\n */\nabstract contract EIP712 {\n /* solhint-disable var-name-mixedcase */\n // Cache the domain separator as an immutable value, but also store the chain id that it corresponds to, in order to\n // invalidate the cached domain separator if the chain id changes.\n bytes32 private immutable _CACHED_DOMAIN_SEPARATOR;\n uint256 private immutable _CACHED_CHAIN_ID;\n address private immutable _CACHED_THIS;\n\n bytes32 private immutable _HASHED_NAME;\n bytes32 private immutable _HASHED_VERSION;\n bytes32 private immutable _TYPE_HASH;\n\n /* solhint-enable var-name-mixedcase */\n\n /**\n * @dev Initializes the domain separator and parameter caches.\n *\n * The meaning of `name` and `version` is specified in\n * https://eips.ethereum.org/EIPS/eip-712#definition-of-domainseparator[EIP 712]:\n *\n * - `name`: the user readable name of the signing domain, i.e. the name of the DApp or the protocol.\n * - `version`: the current major version of the signing domain.\n *\n * NOTE: These parameters cannot be changed except through a xref:learn::upgrading-smart-contracts.adoc[smart\n * contract upgrade].\n */\n constructor(string memory name, string memory version) {\n bytes32 hashedName = keccak256(bytes(name));\n bytes32 hashedVersion = keccak256(bytes(version));\n bytes32 typeHash = keccak256(\n \"EIP712Domain(string name,string version,uint256 chainId,address verifyingContract)\"\n );\n _HASHED_NAME = hashedName;\n _HASHED_VERSION = hashedVersion;\n _CACHED_CHAIN_ID = block.chainid;\n _CACHED_DOMAIN_SEPARATOR = _buildDomainSeparator(typeHash, hashedName, hashedVersion);\n _CACHED_THIS = address(this);\n _TYPE_HASH = typeHash;\n }\n\n /**\n * @dev Returns the domain separator for the current chain.\n */\n function _domainSeparatorV4() internal view returns (bytes32) {\n if (address(this) == _CACHED_THIS && block.chainid == _CACHED_CHAIN_ID) {\n return _CACHED_DOMAIN_SEPARATOR;\n } else {\n return _buildDomainSeparator(_TYPE_HASH, _HASHED_NAME, _HASHED_VERSION);\n }\n }\n\n function _buildDomainSeparator(\n bytes32 typeHash,\n bytes32 nameHash,\n bytes32 versionHash\n ) private view returns (bytes32) {\n return keccak256(abi.encode(typeHash, nameHash, versionHash, block.chainid, address(this)));\n }\n\n /**\n * @dev Given an already https://eips.ethereum.org/EIPS/eip-712#definition-of-hashstruct[hashed struct], this\n * function returns the hash of the fully encoded EIP712 message for this domain.\n *\n * This hash can be used together with {ECDSA-recover} to obtain the signer of a message. For example:\n *\n * ```solidity\n * bytes32 digest = _hashTypedDataV4(keccak256(abi.encode(\n * keccak256(\"Mail(address to,string contents)\"),\n * mailTo,\n * keccak256(bytes(mailContents))\n * )));\n * address signer = ECDSA.recover(digest, signature);\n * ```\n */\n function _hashTypedDataV4(bytes32 structHash) internal view virtual returns (bytes32) {\n return ECDSA.toTypedDataHash(_domainSeparatorV4(), structHash);\n }\n}\n"},"lib/openzeppelin-contracts/contracts/utils/cryptography/SignatureChecker.sol":{"content":"// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.8.0) (utils/cryptography/SignatureChecker.sol)\n\npragma solidity ^0.8.0;\n\nimport \"./ECDSA.sol\";\nimport \"../Address.sol\";\nimport \"../../interfaces/IERC1271.sol\";\n\n/**\n * @dev Signature verification helper that can be used instead of `ECDSA.recover` to seamlessly support both ECDSA\n * signatures from externally owned accounts (EOAs) as well as ERC1271 signatures from smart contract wallets like\n * Argent and Gnosis Safe.\n *\n * _Available since v4.1._\n */\nlibrary SignatureChecker {\n /**\n * @dev Checks if a signature is valid for a given signer and data hash. If the signer is a smart contract, the\n * signature is validated against that smart contract using ERC1271, otherwise it's validated using `ECDSA.recover`.\n *\n * NOTE: Unlike ECDSA signatures, contract signatures are revocable, and the outcome of this function can thus\n * change through time. It could return true at block N and false at block N+1 (or the opposite).\n */\n function isValidSignatureNow(\n address signer,\n bytes32 hash,\n bytes memory signature\n ) internal view returns (bool) {\n (address recovered, ECDSA.RecoverError error) = ECDSA.tryRecover(hash, signature);\n if (error == ECDSA.RecoverError.NoError && recovered == signer) {\n return true;\n }\n\n (bool success, bytes memory result) = signer.staticcall(\n abi.encodeWithSelector(IERC1271.isValidSignature.selector, hash, signature)\n );\n return (success &&\n result.length == 32 &&\n abi.decode(result, (bytes32)) == bytes32(IERC1271.isValidSignature.selector));\n }\n}\n"},"lib/openzeppelin-contracts/contracts/access/AccessControl.sol":{"content":"// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.8.0) (access/AccessControl.sol)\n\npragma solidity ^0.8.0;\n\nimport \"./IAccessControl.sol\";\nimport \"../utils/Context.sol\";\nimport \"../utils/Strings.sol\";\nimport \"../utils/introspection/ERC165.sol\";\n\n/**\n * @dev Contract module that allows children to implement role-based access\n * control mechanisms. This is a lightweight version that doesn't allow enumerating role\n * members except through off-chain means by accessing the contract event logs. Some\n * applications may benefit from on-chain enumerability, for those cases see\n * {AccessControlEnumerable}.\n *\n * Roles are referred to by their `bytes32` identifier. These should be exposed\n * in the external API and be unique. The best way to achieve this is by\n * using `public constant` hash digests:\n *\n * ```\n * bytes32 public constant MY_ROLE = keccak256(\"MY_ROLE\");\n * ```\n *\n * Roles can be used to represent a set of permissions. To restrict access to a\n * function call, use {hasRole}:\n *\n * ```\n * function foo() public {\n * require(hasRole(MY_ROLE, msg.sender));\n * ...\n * }\n * ```\n *\n * Roles can be granted and revoked dynamically via the {grantRole} and\n * {revokeRole} functions. Each role has an associated admin role, and only\n * accounts that have a role's admin role can call {grantRole} and {revokeRole}.\n *\n * By default, the admin role for all roles is `DEFAULT_ADMIN_ROLE`, which means\n * that only accounts with this role will be able to grant or revoke other\n * roles. More complex role relationships can be created by using\n * {_setRoleAdmin}.\n *\n * WARNING: The `DEFAULT_ADMIN_ROLE` is also its own admin: it has permission to\n * grant and revoke this role. Extra precautions should be taken to secure\n * accounts that have been granted it.\n */\nabstract contract AccessControl is Context, IAccessControl, ERC165 {\n struct RoleData {\n mapping(address => bool) members;\n bytes32 adminRole;\n }\n\n mapping(bytes32 => RoleData) private _roles;\n\n bytes32 public constant DEFAULT_ADMIN_ROLE = 0x00;\n\n /**\n * @dev Modifier that checks that an account has a specific role. Reverts\n * with a standardized message including the required role.\n *\n * The format of the revert reason is given by the following regular expression:\n *\n * /^AccessControl: account (0x[0-9a-f]{40}) is missing role (0x[0-9a-f]{64})$/\n *\n * _Available since v4.1._\n */\n modifier onlyRole(bytes32 role) {\n _checkRole(role);\n _;\n }\n\n /**\n * @dev See {IERC165-supportsInterface}.\n */\n function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {\n return interfaceId == type(IAccessControl).interfaceId || super.supportsInterface(interfaceId);\n }\n\n /**\n * @dev Returns `true` if `account` has been granted `role`.\n */\n function hasRole(bytes32 role, address account) public view virtual override returns (bool) {\n return _roles[role].members[account];\n }\n\n /**\n * @dev Revert with a standard message if `_msgSender()` is missing `role`.\n * Overriding this function changes the behavior of the {onlyRole} modifier.\n *\n * Format of the revert message is described in {_checkRole}.\n *\n * _Available since v4.6._\n */\n function _checkRole(bytes32 role) internal view virtual {\n _checkRole(role, _msgSender());\n }\n\n /**\n * @dev Revert with a standard message if `account` is missing `role`.\n *\n * The format of the revert reason is given by the following regular expression:\n *\n * /^AccessControl: account (0x[0-9a-f]{40}) is missing role (0x[0-9a-f]{64})$/\n */\n function _checkRole(bytes32 role, address account) internal view virtual {\n if (!hasRole(role, account)) {\n revert(\n string(\n abi.encodePacked(\n \"AccessControl: account \",\n Strings.toHexString(account),\n \" is missing role \",\n Strings.toHexString(uint256(role), 32)\n )\n )\n );\n }\n }\n\n /**\n * @dev Returns the admin role that controls `role`. See {grantRole} and\n * {revokeRole}.\n *\n * To change a role's admin, use {_setRoleAdmin}.\n */\n function getRoleAdmin(bytes32 role) public view virtual override returns (bytes32) {\n return _roles[role].adminRole;\n }\n\n /**\n * @dev Grants `role` to `account`.\n *\n * If `account` had not been already granted `role`, emits a {RoleGranted}\n * event.\n *\n * Requirements:\n *\n * - the caller must have ``role``'s admin role.\n *\n * May emit a {RoleGranted} event.\n */\n function grantRole(bytes32 role, address account) public virtual override onlyRole(getRoleAdmin(role)) {\n _grantRole(role, account);\n }\n\n /**\n * @dev Revokes `role` from `account`.\n *\n * If `account` had been granted `role`, emits a {RoleRevoked} event.\n *\n * Requirements:\n *\n * - the caller must have ``role``'s admin role.\n *\n * May emit a {RoleRevoked} event.\n */\n function revokeRole(bytes32 role, address account) public virtual override onlyRole(getRoleAdmin(role)) {\n _revokeRole(role, account);\n }\n\n /**\n * @dev Revokes `role` from the calling account.\n *\n * Roles are often managed via {grantRole} and {revokeRole}: this function's\n * purpose is to provide a mechanism for accounts to lose their privileges\n * if they are compromised (such as when a trusted device is misplaced).\n *\n * If the calling account had been revoked `role`, emits a {RoleRevoked}\n * event.\n *\n * Requirements:\n *\n * - the caller must be `account`.\n *\n * May emit a {RoleRevoked} event.\n */\n function renounceRole(bytes32 role, address account) public virtual override {\n require(account == _msgSender(), \"AccessControl: can only renounce roles for self\");\n\n _revokeRole(role, account);\n }\n\n /**\n * @dev Grants `role` to `account`.\n *\n * If `account` had not been already granted `role`, emits a {RoleGranted}\n * event. Note that unlike {grantRole}, this function doesn't perform any\n * checks on the calling account.\n *\n * May emit a {RoleGranted} event.\n *\n * [WARNING]\n * ====\n * This function should only be called from the constructor when setting\n * up the initial roles for the system.\n *\n * Using this function in any other way is effectively circumventing the admin\n * system imposed by {AccessControl}.\n * ====\n *\n * NOTE: This function is deprecated in favor of {_grantRole}.\n */\n function _setupRole(bytes32 role, address account) internal virtual {\n _grantRole(role, account);\n }\n\n /**\n * @dev Sets `adminRole` as ``role``'s admin role.\n *\n * Emits a {RoleAdminChanged} event.\n */\n function _setRoleAdmin(bytes32 role, bytes32 adminRole) internal virtual {\n bytes32 previousAdminRole = getRoleAdmin(role);\n _roles[role].adminRole = adminRole;\n emit RoleAdminChanged(role, previousAdminRole, adminRole);\n }\n\n /**\n * @dev Grants `role` to `account`.\n *\n * Internal function without access restriction.\n *\n * May emit a {RoleGranted} event.\n */\n function _grantRole(bytes32 role, address account) internal virtual {\n if (!hasRole(role, account)) {\n _roles[role].members[account] = true;\n emit RoleGranted(role, account, _msgSender());\n }\n }\n\n /**\n * @dev Revokes `role` from `account`.\n *\n * Internal function without access restriction.\n *\n * May emit a {RoleRevoked} event.\n */\n function _revokeRole(bytes32 role, address account) internal virtual {\n if (hasRole(role, account)) {\n _roles[role].members[account] = false;\n emit RoleRevoked(role, account, _msgSender());\n }\n }\n}\n"},"src/contracts/usdxl/interfaces/IUsdxlFacilitator.sol":{"content":"// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\n/**\n * @title IGhoFacilitator\n * @author Aave\n * @notice Defines the behavior of a Usdxl Facilitator\n */\ninterface IUsdxlFacilitator {\n /**\n * @dev Emitted when fees are distributed to the GhoTreasury\n * @param usdxlTreasury The address of the ghoTreasury\n * @param asset The address of the asset transferred to the ghoTreasury\n * @param amount The amount of the asset transferred to the ghoTreasury\n */\n event FeesDistributedToTreasury(\n address indexed usdxlTreasury,\n address indexed asset,\n uint256 amount\n );\n\n /**\n * @dev Emitted when Gho Treasury address is updated\n * @param oldUsdxlTreasury The address of the old GhoTreasury contract\n * @param newUsdxlTreasury The address of the new GhoTreasury contract\n */\n event UsdxlTreasuryUpdated(address indexed oldUsdxlTreasury, address indexed newUsdxlTreasury);\n\n /**\n * @notice Distribute fees to the GhoTreasury\n */\n function distributeFeesToTreasury() external;\n\n /**\n * @notice Updates the address of the Gho Treasury\n * @dev WARNING: The GhoTreasury is where revenue fees are sent to. Update carefully\n * @param newUsdxlTreasury The address of the GhoTreasury\n */\n function updateUsdxlTreasury(address newUsdxlTreasury) external;\n\n /**\n * @notice Returns the address of the Gho Treasury\n * @return The address of the GhoTreasury contract\n */\n function getUsdxlTreasury() external view returns (address);\n}\n"},"src/contracts/facilitators/gsm/priceStrategy/interfaces/IGsmPriceStrategy.sol":{"content":"// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\n/**\n * @title IGsmPriceStrategy\n * @author Aave\n * @notice Defines the behaviour of Price Strategies\n */\ninterface IGsmPriceStrategy {\n /**\n * @notice Returns the number of decimals of GHO\n * @return The number of decimals of GHO\n */\n function GHO_DECIMALS() external view returns (uint256);\n\n /**\n * @notice Returns the address of the underlying asset being priced\n * @return The address of the underlying asset\n */\n function UNDERLYING_ASSET() external view returns (address);\n\n /**\n * @notice Returns the decimals of the underlying asset being priced\n * @return The number of decimals of the underlying asset\n */\n function UNDERLYING_ASSET_DECIMALS() external view returns (uint256);\n\n /**\n * @notice Returns the price of the underlying asset (GHO denominated)\n * @param assetAmount The amount of the underlying asset to calculate the price of\n * @param roundUp True if the price should be rounded up, false if rounded down\n * @return The price of the underlying asset (expressed in GHO units)\n */\n function getAssetPriceInGho(uint256 assetAmount, bool roundUp) external view returns (uint256);\n\n /**\n * @notice Returns the price of GHO (denominated in the underlying asset)\n * @param ghoAmount The amount of GHO to calculate the price of\n * @param roundUp True if the price should be rounded up, false if rounded down\n * @return The price of the GHO amount (expressed in underlying asset units)\n */\n function getGhoPriceInAsset(uint256 ghoAmount, bool roundUp) external view returns (uint256);\n}\n"},"src/contracts/facilitators/gsm/feeStrategy/interfaces/IGsmFeeStrategy.sol":{"content":"// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\n/**\n * @title IGsmFeeStrategy\n * @author Aave\n * @notice Defines the behaviour of Fee Strategies\n * @dev Functions' logic must be invertible, being possible to calculate the fee amount based on the gross amount, and\n * the other way round.\n * @dev All math operations must round up, favoring the protocol.\n */\ninterface IGsmFeeStrategy {\n /**\n * @notice Returns the fee to be applied when buying an underlying asset in exchange for GHO\n * @param grossAmount The amount of GHO being sold for the underlying asset\n * @return The fee amount of GHO\n */\n function getBuyFee(uint256 grossAmount) external view returns (uint256);\n\n /**\n * @notice Returns the fee to be applied when buying GHO in exchange for an underlying asset\n * @param grossAmount The amount of underlying, converted to GHO, being sold\n * @return The fee amount of GHO\n */\n function getSellFee(uint256 grossAmount) external view returns (uint256);\n\n /**\n * @notice Returns the gross amount of GHO being bought based on the total bought amount\n * @param totalAmount The total amount of GHO being bought (gross amount, GHO bought plus fee)\n * @return The gross amount of GHO being bought (total amount minus fee)\n */\n function getGrossAmountFromTotalBought(uint256 totalAmount) external view returns (uint256);\n\n /**\n * @notice Returns the amount of GHO being sold based on the total sold amount\n * @param totalAmount The total amount of GHO being sold (gross amount, GHO sold minus fee)\n * @return The gross amount of GHO being sold (total amount plus fee)\n */\n function getGrossAmountFromTotalSold(uint256 totalAmount) external view returns (uint256);\n}\n"},"src/contracts/facilitators/gsm/interfaces/IGsm.sol":{"content":"// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\nimport {IAccessControl} from '@openzeppelin/contracts/access/IAccessControl.sol';\nimport {IUsdxlFacilitator} from '../../../usdxl/interfaces/IUsdxlFacilitator.sol';\n\n/**\n * @title IGsm\n * @author Aave\n * @notice Defines the behaviour of a GHO Stability Module\n */\ninterface IGsm is IAccessControl, IUsdxlFacilitator {\n /**\n * @dev Emitted when a user buys an asset (selling GHO) in the GSM\n * @param originator The address of the buyer originating the request\n * @param receiver The address of the receiver of the underlying asset\n * @param underlyingAmount The amount of the underlying asset bought\n * @param ghoAmount The amount of GHO sold, inclusive of fee\n * @param fee The fee paid by the buyer, in GHO\n */\n event BuyAsset(\n address indexed originator,\n address indexed receiver,\n uint256 underlyingAmount,\n uint256 ghoAmount,\n uint256 fee\n );\n\n /**\n * @dev Emitted when a user sells an asset (buying GHO) in the GSM\n * @param originator The address of the seller originating the request\n * @param receiver The address of the receiver of GHO\n * @param underlyingAmount The amount of the underlying asset sold\n * @param ghoAmount The amount of GHO bought, inclusive of fee\n * @param fee The fee paid by the buyer, in GHO\n */\n event SellAsset(\n address indexed originator,\n address indexed receiver,\n uint256 underlyingAmount,\n uint256 ghoAmount,\n uint256 fee\n );\n\n /**\n * @dev Emitted when the Swap Freezer freezes buys/sells\n * @param freezer The address of the Swap Freezer\n * @param enabled True if swap functions are frozen, False otherwise\n */\n event SwapFreeze(address indexed freezer, bool enabled);\n\n /**\n * @dev Emitted when a Liquidator seizes GSM funds\n * @param seizer The address originating the seizure request\n * @param recipient The address of the recipient of seized funds\n * @param underlyingAmount The amount of the underlying asset seized\n * @param ghoOutstanding The amount of remaining GHO that the GSM had minted\n */\n event Seized(\n address indexed seizer,\n address indexed recipient,\n uint256 underlyingAmount,\n uint256 ghoOutstanding\n );\n\n /**\n * @dev Emitted when burning GHO after a seizure of GSM funds\n * @param burner The address of the burner\n * @param amount The amount of GHO burned\n * @param ghoOutstanding The amount of remaining GHO that the GSM had minted\n */\n event BurnAfterSeize(address indexed burner, uint256 amount, uint256 ghoOutstanding);\n\n /**\n * @dev Emitted when the Fee Strategy is updated\n * @param oldFeeStrategy The address of the old Fee Strategy\n * @param newFeeStrategy The address of the new Fee Strategy\n */\n event FeeStrategyUpdated(address indexed oldFeeStrategy, address indexed newFeeStrategy);\n\n /**\n * @dev Emitted when the GSM underlying asset Exposure Cap is updated\n * @param oldExposureCap The amount of the old Exposure Cap\n * @param newExposureCap The amount of the new Exposure Cap\n */\n event ExposureCapUpdated(uint256 oldExposureCap, uint256 newExposureCap);\n\n /**\n * @dev Emitted when tokens are rescued from the GSM\n * @param tokenRescued The address of the rescued token\n * @param recipient The address that received the rescued tokens\n * @param amountRescued The amount of token rescued\n */\n event TokensRescued(\n address indexed tokenRescued,\n address indexed recipient,\n uint256 amountRescued\n );\n\n /**\n * @notice Buys the GSM underlying asset in exchange for selling GHO\n * @dev Use `getAssetAmountForBuyAsset` function to calculate the amount based on the GHO amount to sell\n * @param minAmount The minimum amount of the underlying asset to buy\n * @param receiver Recipient address of the underlying asset being purchased\n * @return The amount of underlying asset bought\n * @return The amount of GHO sold by the user\n */\n function buyAsset(uint256 minAmount, address receiver) external returns (uint256, uint256);\n\n /**\n * @notice Buys the GSM underlying asset in exchange for selling GHO, using an EIP-712 signature\n * @dev Use `getAssetAmountForBuyAsset` function to calculate the amount based on the GHO amount to sell\n * @param originator The signer of the request\n * @param minAmount The minimum amount of the underlying asset to buy\n * @param receiver Recipient address of the underlying asset being purchased\n * @param deadline Signature expiration deadline\n * @param signature Signature data\n * @return The amount of underlying asset bought\n * @return The amount of GHO sold by the user\n */\n function buyAssetWithSig(\n address originator,\n uint256 minAmount,\n address receiver,\n uint256 deadline,\n bytes calldata signature\n ) external returns (uint256, uint256);\n\n /**\n * @notice Sells the GSM underlying asset in exchange for buying GHO\n * @dev Use `getAssetAmountForSellAsset` function to calculate the amount based on the GHO amount to buy\n * @param maxAmount The maximum amount of the underlying asset to sell\n * @param receiver Recipient address of the GHO being purchased\n * @return The amount of underlying asset sold\n * @return The amount of GHO bought by the user\n */\n function sellAsset(uint256 maxAmount, address receiver) external returns (uint256, uint256);\n\n /**\n * @notice Sells the GSM underlying asset in exchange for buying GHO, using an EIP-712 signature\n * @dev Use `getAssetAmountForSellAsset` function to calculate the amount based on the GHO amount to buy\n * @param originator The signer of the request\n * @param maxAmount The maximum amount of the underlying asset to sell\n * @param receiver Recipient address of the GHO being purchased\n * @param deadline Signature expiration deadline\n * @param signature Signature data\n * @return The amount of underlying asset sold\n * @return The amount of GHO bought by the user\n */\n function sellAssetWithSig(\n address originator,\n uint256 maxAmount,\n address receiver,\n uint256 deadline,\n bytes calldata signature\n ) external returns (uint256, uint256);\n\n /**\n * @notice Rescue and transfer tokens locked in this contract\n * @param token The address of the token\n * @param to The address of the recipient\n * @param amount The amount of token to transfer\n */\n function rescueTokens(address token, address to, uint256 amount) external;\n\n /**\n * @notice Enable or disable the swap freeze\n * @param enable True to freeze swap functions, false otherwise\n */\n function setSwapFreeze(bool enable) external;\n\n /**\n * @notice Seizes all of the underlying asset from the GSM, sending to the Treasury\n * @dev Seizing is a last resort mechanism to provide the Treasury with the entire amount of underlying asset\n * so it can be used to backstop any potential event impacting the functionality of the Gsm.\n * @dev Seizing disables the swap feature\n * @return The amount of underlying asset seized and transferred to Treasury\n */\n function seize() external returns (uint256);\n\n /**\n * @notice Burns an amount of GHO after seizure reducing the facilitator bucket level effectively\n * @dev Passing an amount higher than the facilitator bucket level will result in burning all minted GHO\n * @dev Only callable if the GSM has assets seized, helpful to wind down the facilitator\n * @param amount The amount of GHO to burn\n * @return The amount of GHO burned\n */\n function burnAfterSeize(uint256 amount) external returns (uint256);\n\n /**\n * @notice Updates the address of the Fee Strategy\n * @param feeStrategy The address of the new FeeStrategy\n */\n function updateFeeStrategy(address feeStrategy) external;\n\n /**\n * @notice Updates the exposure cap of the underlying asset\n * @param exposureCap The new value for the exposure cap (in underlying asset terms)\n */\n function updateExposureCap(uint128 exposureCap) external;\n\n /**\n * @notice Returns the EIP712 domain separator\n * @return The EIP712 domain separator\n */\n function DOMAIN_SEPARATOR() external view returns (bytes32);\n\n /**\n * @notice Returns the total amount of GHO, gross amount and fee result of buying assets\n * @param minAssetAmount The minimum amount of underlying asset to buy\n * @return The exact amount of underlying asset to be bought\n * @return The total amount of GHO the user sells (gross amount in GHO plus fee)\n * @return The gross amount of GHO\n * @return The fee amount in GHO, applied on top of gross amount of GHO\n */\n function getGhoAmountForBuyAsset(\n uint256 minAssetAmount\n ) external view returns (uint256, uint256, uint256, uint256);\n\n /**\n * @notice Returns the total amount of GHO, gross amount and fee result of selling assets\n * @param maxAssetAmount The maximum amount of underlying asset to sell\n * @return The exact amount of underlying asset to sell\n * @return The total amount of GHO the user buys (gross amount in GHO minus fee)\n * @return The gross amount of GHO\n * @return The fee amount in GHO, applied to the gross amount of GHO\n */\n function getGhoAmountForSellAsset(\n uint256 maxAssetAmount\n ) external view returns (uint256, uint256, uint256, uint256);\n\n /**\n * @notice Returns the amount of underlying asset, gross amount of GHO and fee result of buying assets\n * @param maxGhoAmount The maximum amount of GHO the user provides for buying underlying asset\n * @return The amount of underlying asset the user buys\n * @return The exact amount of GHO the user provides\n * @return The gross amount of GHO corresponding to the given total amount of GHO\n * @return The fee amount in GHO, charged for buying assets\n */\n function getAssetAmountForBuyAsset(\n uint256 maxGhoAmount\n ) external view returns (uint256, uint256, uint256, uint256);\n\n /**\n * @notice Returns the amount of underlying asset, gross amount of GHO and fee result of selling assets\n * @param minGhoAmount The minimum amount of GHO the user must receive for selling underlying asset\n * @return The amount of underlying asset the user sells\n * @return The exact amount of GHO the user receives in exchange\n * @return The gross amount of GHO corresponding to the given total amount of GHO\n * @return The fee amount in GHO, charged for selling assets\n */\n function getAssetAmountForSellAsset(\n uint256 minGhoAmount\n ) external view returns (uint256, uint256, uint256, uint256);\n\n /**\n * @notice Returns the remaining GSM exposure capacity\n * @return The amount of underlying asset that can be sold to the GSM\n */\n function getAvailableUnderlyingExposure() external view returns (uint256);\n\n /**\n * @notice Returns the exposure limit to the underlying asset\n * @return The maximum amount of underlying asset that can be sold to the GSM\n */\n function getExposureCap() external view returns (uint128);\n\n /**\n * @notice Returns the actual underlying asset balance immediately available in the GSM\n * @return The amount of underlying asset that can be bought from the GSM\n */\n function getAvailableLiquidity() external view returns (uint256);\n\n /**\n * @notice Returns the Fee Strategy for the GSM\n * @dev It returns 0x0 in case of no fee strategy\n * @return The address of the FeeStrategy\n */\n function getFeeStrategy() external view returns (address);\n\n /**\n * @notice Returns the amount of current accrued fees\n * @dev It does not factor in potential fees that can be accrued upon distribution of fees\n * @return The amount of accrued fees\n */\n function getAccruedFees() external view returns (uint256);\n\n /**\n * @notice Returns the freeze status of the GSM\n * @return True if frozen, false if not\n */\n function getIsFrozen() external view returns (bool);\n\n /**\n * @notice Returns the current seizure status of the GSM\n * @return True if the GSM has been seized, false if not\n */\n function getIsSeized() external view returns (bool);\n\n /**\n * @notice Returns whether or not swaps via buyAsset/sellAsset are currently possible\n * @return True if the GSM has swapping enabled, false otherwise\n */\n function canSwap() external view returns (bool);\n\n /**\n * @notice Returns the GSM revision number\n * @return The revision number\n */\n function GSM_REVISION() external pure returns (uint256);\n\n /**\n * @notice Returns the address of the GHO token\n * @return The address of GHO token contract\n */\n function USDXL_TOKEN() external view returns (address);\n\n /**\n * @notice Returns the underlying asset of the GSM\n * @return The address of the underlying asset\n */\n function UNDERLYING_ASSET() external view returns (address);\n\n /**\n * @notice Returns the price strategy of the GSM\n * @return The address of the price strategy\n */\n function PRICE_STRATEGY() external view returns (address);\n\n /**\n * @notice Returns the current nonce (for EIP-712 signature methods) of an address\n * @param user The address of the user\n * @return The current nonce of the user\n */\n function nonces(address user) external view returns (uint256);\n\n /**\n * @notice Returns the identifier of the Configurator Role\n * @return The bytes32 id hash of the Configurator role\n */\n function CONFIGURATOR_ROLE() external pure returns (bytes32);\n\n /**\n * @notice Returns the identifier of the Token Rescuer Role\n * @return The bytes32 id hash of the TokenRescuer role\n */\n function TOKEN_RESCUER_ROLE() external pure returns (bytes32);\n\n /**\n * @notice Returns the identifier of the Swap Freezer Role\n * @return The bytes32 id hash of the SwapFreezer role\n */\n function SWAP_FREEZER_ROLE() external pure returns (bytes32);\n\n /**\n * @notice Returns the identifier of the Liquidator Role\n * @return The bytes32 id hash of the Liquidator role\n */\n function LIQUIDATOR_ROLE() external pure returns (bytes32);\n\n /**\n * @notice Returns the EIP-712 signature typehash for buyAssetWithSig\n * @return The bytes32 signature typehash for buyAssetWithSig\n */\n function BUY_ASSET_WITH_SIG_TYPEHASH() external pure returns (bytes32);\n\n /**\n * @notice Returns the EIP-712 signature typehash for sellAssetWithSig\n * @return The bytes32 signature typehash for sellAssetWithSig\n */\n function SELL_ASSET_WITH_SIG_TYPEHASH() external pure returns (bytes32);\n}\n"},"lib/hypurrfi-deployments/lib/aave-v3-core/contracts/interfaces/IAaveIncentivesController.sol":{"content":"// SPDX-License-Identifier: AGPL-3.0\npragma solidity ^0.8.0;\n\n/**\n * @title IAaveIncentivesController\n * @author Aave\n * @notice Defines the basic interface for an Aave Incentives Controller.\n * @dev It only contains one single function, needed as a hook on aToken and debtToken transfers.\n */\ninterface IAaveIncentivesController {\n /**\n * @dev Called by the corresponding asset on transfer hook in order to update the rewards distribution.\n * @dev The units of `totalSupply` and `userBalance` should be the same.\n * @param user The address of the user whose asset balance has changed\n * @param totalSupply The total supply of the asset prior to user balance change\n * @param userBalance The previous user balance prior to balance change\n */\n function handleAction(address user, uint256 totalSupply, uint256 userBalance) external;\n}\n"},"lib/openzeppelin-contracts/contracts/utils/Context.sol":{"content":"// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (utils/Context.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @dev Provides information about the current execution context, including the\n * sender of the transaction and its data. While these are generally available\n * via msg.sender and msg.data, they should not be accessed in such a direct\n * manner, since when dealing with meta-transactions the account sending and\n * paying for execution may not be the actual sender (as far as an application\n * is concerned).\n *\n * This contract is only required for intermediate, library-like contracts.\n */\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n\n function _msgData() internal view virtual returns (bytes calldata) {\n return msg.data;\n }\n}\n"},"lib/openzeppelin-contracts/contracts/proxy/Proxy.sol":{"content":"// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.6.0) (proxy/Proxy.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @dev This abstract contract provides a fallback function that delegates all calls to another contract using the EVM\n * instruction `delegatecall`. We refer to the second contract as the _implementation_ behind the proxy, and it has to\n * be specified by overriding the virtual {_implementation} function.\n *\n * Additionally, delegation to the implementation can be triggered manually through the {_fallback} function, or to a\n * different contract through the {_delegate} function.\n *\n * The success and return data of the delegated call will be returned back to the caller of the proxy.\n */\nabstract contract Proxy {\n /**\n * @dev Delegates the current call to `implementation`.\n *\n * This function does not return to its internal call site, it will return directly to the external caller.\n */\n function _delegate(address implementation) internal virtual {\n assembly {\n // Copy msg.data. We take full control of memory in this inline assembly\n // block because it will not return to Solidity code. We overwrite the\n // Solidity scratch pad at memory position 0.\n calldatacopy(0, 0, calldatasize())\n\n // Call the implementation.\n // out and outsize are 0 because we don't know the size yet.\n let result := delegatecall(gas(), implementation, 0, calldatasize(), 0, 0)\n\n // Copy the returned data.\n returndatacopy(0, 0, returndatasize())\n\n switch result\n // delegatecall returns 0 on error.\n case 0 {\n revert(0, returndatasize())\n }\n default {\n return(0, returndatasize())\n }\n }\n }\n\n /**\n * @dev This is a virtual function that should be overridden so it returns the address to which the fallback function\n * and {_fallback} should delegate.\n */\n function _implementation() internal view virtual returns (address);\n\n /**\n * @dev Delegates the current call to the address returned by `_implementation()`.\n *\n * This function does not return to its internal call site, it will return directly to the external caller.\n */\n function _fallback() internal virtual {\n _beforeFallback();\n _delegate(_implementation());\n }\n\n /**\n * @dev Fallback function that delegates calls to the address returned by `_implementation()`. Will run if no other\n * function in the contract matches the call data.\n */\n fallback() external payable virtual {\n _fallback();\n }\n\n /**\n * @dev Fallback function that delegates calls to the address returned by `_implementation()`. Will run if call data\n * is empty.\n */\n receive() external payable virtual {\n _fallback();\n }\n\n /**\n * @dev Hook that is called before falling back to the implementation. Can happen as part of a manual `_fallback`\n * call, or as part of the Solidity `fallback` or `receive` functions.\n *\n * If overridden should call `super._beforeFallback()`.\n */\n function _beforeFallback() internal virtual {}\n}\n"},"lib/openzeppelin-contracts/contracts/proxy/ERC1967/ERC1967Upgrade.sol":{"content":"// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.5.0) (proxy/ERC1967/ERC1967Upgrade.sol)\n\npragma solidity ^0.8.2;\n\nimport \"../beacon/IBeacon.sol\";\nimport \"../../interfaces/draft-IERC1822.sol\";\nimport \"../../utils/Address.sol\";\nimport \"../../utils/StorageSlot.sol\";\n\n/**\n * @dev This abstract contract provides getters and event emitting update functions for\n * https://eips.ethereum.org/EIPS/eip-1967[EIP1967] slots.\n *\n * _Available since v4.1._\n *\n * @custom:oz-upgrades-unsafe-allow delegatecall\n */\nabstract contract ERC1967Upgrade {\n // This is the keccak-256 hash of \"eip1967.proxy.rollback\" subtracted by 1\n bytes32 private constant _ROLLBACK_SLOT = 0x4910fdfa16fed3260ed0e7147f7cc6da11a60208b5b9406d12a635614ffd9143;\n\n /**\n * @dev Storage slot with the address of the current implementation.\n * This is the keccak-256 hash of \"eip1967.proxy.implementation\" subtracted by 1, and is\n * validated in the constructor.\n */\n bytes32 internal constant _IMPLEMENTATION_SLOT = 0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc;\n\n /**\n * @dev Emitted when the implementation is upgraded.\n */\n event Upgraded(address indexed implementation);\n\n /**\n * @dev Returns the current implementation address.\n */\n function _getImplementation() internal view returns (address) {\n return StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value;\n }\n\n /**\n * @dev Stores a new address in the EIP1967 implementation slot.\n */\n function _setImplementation(address newImplementation) private {\n require(Address.isContract(newImplementation), \"ERC1967: new implementation is not a contract\");\n StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value = newImplementation;\n }\n\n /**\n * @dev Perform implementation upgrade\n *\n * Emits an {Upgraded} event.\n */\n function _upgradeTo(address newImplementation) internal {\n _setImplementation(newImplementation);\n emit Upgraded(newImplementation);\n }\n\n /**\n * @dev Perform implementation upgrade with additional setup call.\n *\n * Emits an {Upgraded} event.\n */\n function _upgradeToAndCall(\n address newImplementation,\n bytes memory data,\n bool forceCall\n ) internal {\n _upgradeTo(newImplementation);\n if (data.length > 0 || forceCall) {\n Address.functionDelegateCall(newImplementation, data);\n }\n }\n\n /**\n * @dev Perform implementation upgrade with security checks for UUPS proxies, and additional setup call.\n *\n * Emits an {Upgraded} event.\n */\n function _upgradeToAndCallUUPS(\n address newImplementation,\n bytes memory data,\n bool forceCall\n ) internal {\n // Upgrades from old implementations will perform a rollback test. This test requires the new\n // implementation to upgrade back to the old, non-ERC1822 compliant, implementation. Removing\n // this special case will break upgrade paths from old UUPS implementation to new ones.\n if (StorageSlot.getBooleanSlot(_ROLLBACK_SLOT).value) {\n _setImplementation(newImplementation);\n } else {\n try IERC1822Proxiable(newImplementation).proxiableUUID() returns (bytes32 slot) {\n require(slot == _IMPLEMENTATION_SLOT, \"ERC1967Upgrade: unsupported proxiableUUID\");\n } catch {\n revert(\"ERC1967Upgrade: new implementation is not UUPS\");\n }\n _upgradeToAndCall(newImplementation, data, forceCall);\n }\n }\n\n /**\n * @dev Storage slot with the admin of the contract.\n * This is the keccak-256 hash of \"eip1967.proxy.admin\" subtracted by 1, and is\n * validated in the constructor.\n */\n bytes32 internal constant _ADMIN_SLOT = 0xb53127684a568b3173ae13b9f8a6016e243e63b6e8ee1178d6a717850b5d6103;\n\n /**\n * @dev Emitted when the admin account has changed.\n */\n event AdminChanged(address previousAdmin, address newAdmin);\n\n /**\n * @dev Returns the current admin.\n */\n function _getAdmin() internal view returns (address) {\n return StorageSlot.getAddressSlot(_ADMIN_SLOT).value;\n }\n\n /**\n * @dev Stores a new address in the EIP1967 admin slot.\n */\n function _setAdmin(address newAdmin) private {\n require(newAdmin != address(0), \"ERC1967: new admin is the zero address\");\n StorageSlot.getAddressSlot(_ADMIN_SLOT).value = newAdmin;\n }\n\n /**\n * @dev Changes the admin of the proxy.\n *\n * Emits an {AdminChanged} event.\n */\n function _changeAdmin(address newAdmin) internal {\n emit AdminChanged(_getAdmin(), newAdmin);\n _setAdmin(newAdmin);\n }\n\n /**\n * @dev The storage slot of the UpgradeableBeacon contract which defines the implementation for this proxy.\n * This is bytes32(uint256(keccak256('eip1967.proxy.beacon')) - 1)) and is validated in the constructor.\n */\n bytes32 internal constant _BEACON_SLOT = 0xa3f0ad74e5423aebfd80d3ef4346578335a9a72aeaee59ff6cb3582b35133d50;\n\n /**\n * @dev Emitted when the beacon is upgraded.\n */\n event BeaconUpgraded(address indexed beacon);\n\n /**\n * @dev Returns the current beacon.\n */\n function _getBeacon() internal view returns (address) {\n return StorageSlot.getAddressSlot(_BEACON_SLOT).value;\n }\n\n /**\n * @dev Stores a new beacon in the EIP1967 beacon slot.\n */\n function _setBeacon(address newBeacon) private {\n require(Address.isContract(newBeacon), \"ERC1967: new beacon is not a contract\");\n require(\n Address.isContract(IBeacon(newBeacon).implementation()),\n \"ERC1967: beacon implementation is not a contract\"\n );\n StorageSlot.getAddressSlot(_BEACON_SLOT).value = newBeacon;\n }\n\n /**\n * @dev Perform beacon upgrade with additional setup call. Note: This upgrades the address of the beacon, it does\n * not upgrade the implementation contained in the beacon (see {UpgradeableBeacon-_setImplementation} for that).\n *\n * Emits a {BeaconUpgraded} event.\n */\n function _upgradeBeaconToAndCall(\n address newBeacon,\n bytes memory data,\n bool forceCall\n ) internal {\n _setBeacon(newBeacon);\n emit BeaconUpgraded(newBeacon);\n if (data.length > 0 || forceCall) {\n Address.functionDelegateCall(IBeacon(newBeacon).implementation(), data);\n }\n }\n}\n"},"lib/openzeppelin-contracts/contracts/utils/cryptography/ECDSA.sol":{"content":"// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.8.0) (utils/cryptography/ECDSA.sol)\n\npragma solidity ^0.8.0;\n\nimport \"../Strings.sol\";\n\n/**\n * @dev Elliptic Curve Digital Signature Algorithm (ECDSA) operations.\n *\n * These functions can be used to verify that a message was signed by the holder\n * of the private keys of a given address.\n */\nlibrary ECDSA {\n enum RecoverError {\n NoError,\n InvalidSignature,\n InvalidSignatureLength,\n InvalidSignatureS,\n InvalidSignatureV // Deprecated in v4.8\n }\n\n function _throwError(RecoverError error) private pure {\n if (error == RecoverError.NoError) {\n return; // no error: do nothing\n } else if (error == RecoverError.InvalidSignature) {\n revert(\"ECDSA: invalid signature\");\n } else if (error == RecoverError.InvalidSignatureLength) {\n revert(\"ECDSA: invalid signature length\");\n } else if (error == RecoverError.InvalidSignatureS) {\n revert(\"ECDSA: invalid signature 's' value\");\n }\n }\n\n /**\n * @dev Returns the address that signed a hashed message (`hash`) with\n * `signature` or error string. This address can then be used for verification purposes.\n *\n * The `ecrecover` EVM opcode allows for malleable (non-unique) signatures:\n * this function rejects them by requiring the `s` value to be in the lower\n * half order, and the `v` value to be either 27 or 28.\n *\n * IMPORTANT: `hash` _must_ be the result of a hash operation for the\n * verification to be secure: it is possible to craft signatures that\n * recover to arbitrary addresses for non-hashed data. A safe way to ensure\n * this is by receiving a hash of the original message (which may otherwise\n * be too long), and then calling {toEthSignedMessageHash} on it.\n *\n * Documentation for signature generation:\n * - with https://web3js.readthedocs.io/en/v1.3.4/web3-eth-accounts.html#sign[Web3.js]\n * - with https://docs.ethers.io/v5/api/signer/#Signer-signMessage[ethers]\n *\n * _Available since v4.3._\n */\n function tryRecover(bytes32 hash, bytes memory signature) internal pure returns (address, RecoverError) {\n if (signature.length == 65) {\n bytes32 r;\n bytes32 s;\n uint8 v;\n // ecrecover takes the signature parameters, and the only way to get them\n // currently is to use assembly.\n /// @solidity memory-safe-assembly\n assembly {\n r := mload(add(signature, 0x20))\n s := mload(add(signature, 0x40))\n v := byte(0, mload(add(signature, 0x60)))\n }\n return tryRecover(hash, v, r, s);\n } else {\n return (address(0), RecoverError.InvalidSignatureLength);\n }\n }\n\n /**\n * @dev Returns the address that signed a hashed message (`hash`) with\n * `signature`. This address can then be used for verification purposes.\n *\n * The `ecrecover` EVM opcode allows for malleable (non-unique) signatures:\n * this function rejects them by requiring the `s` value to be in the lower\n * half order, and the `v` value to be either 27 or 28.\n *\n * IMPORTANT: `hash` _must_ be the result of a hash operation for the\n * verification to be secure: it is possible to craft signatures that\n * recover to arbitrary addresses for non-hashed data. A safe way to ensure\n * this is by receiving a hash of the original message (which may otherwise\n * be too long), and then calling {toEthSignedMessageHash} on it.\n */\n function recover(bytes32 hash, bytes memory signature) internal pure returns (address) {\n (address recovered, RecoverError error) = tryRecover(hash, signature);\n _throwError(error);\n return recovered;\n }\n\n /**\n * @dev Overload of {ECDSA-tryRecover} that receives the `r` and `vs` short-signature fields separately.\n *\n * See https://eips.ethereum.org/EIPS/eip-2098[EIP-2098 short signatures]\n *\n * _Available since v4.3._\n */\n function tryRecover(\n bytes32 hash,\n bytes32 r,\n bytes32 vs\n ) internal pure returns (address, RecoverError) {\n bytes32 s = vs & bytes32(0x7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff);\n uint8 v = uint8((uint256(vs) >> 255) + 27);\n return tryRecover(hash, v, r, s);\n }\n\n /**\n * @dev Overload of {ECDSA-recover} that receives the `r and `vs` short-signature fields separately.\n *\n * _Available since v4.2._\n */\n function recover(\n bytes32 hash,\n bytes32 r,\n bytes32 vs\n ) internal pure returns (address) {\n (address recovered, RecoverError error) = tryRecover(hash, r, vs);\n _throwError(error);\n return recovered;\n }\n\n /**\n * @dev Overload of {ECDSA-tryRecover} that receives the `v`,\n * `r` and `s` signature fields separately.\n *\n * _Available since v4.3._\n */\n function tryRecover(\n bytes32 hash,\n uint8 v,\n bytes32 r,\n bytes32 s\n ) internal pure returns (address, RecoverError) {\n // EIP-2 still allows signature malleability for ecrecover(). Remove this possibility and make the signature\n // unique. Appendix F in the Ethereum Yellow paper (https://ethereum.github.io/yellowpaper/paper.pdf), defines\n // the valid range for s in (301): 0 < s < secp256k1n รท 2 + 1, and for v in (302): v โˆˆ {27, 28}. Most\n // signatures from current libraries generate a unique signature with an s-value in the lower half order.\n //\n // If your library generates malleable signatures, such as s-values in the upper range, calculate a new s-value\n // with 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEBAAEDCE6AF48A03BBFD25E8CD0364141 - s1 and flip v from 27 to 28 or\n // vice versa. If your library also generates signatures with 0/1 for v instead 27/28, add 27 to v to accept\n // these malleable signatures as well.\n if (uint256(s) > 0x7FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF5D576E7357A4501DDFE92F46681B20A0) {\n return (address(0), RecoverError.InvalidSignatureS);\n }\n\n // If the signature is valid (and not malleable), return the signer address\n address signer = ecrecover(hash, v, r, s);\n if (signer == address(0)) {\n return (address(0), RecoverError.InvalidSignature);\n }\n\n return (signer, RecoverError.NoError);\n }\n\n /**\n * @dev Overload of {ECDSA-recover} that receives the `v`,\n * `r` and `s` signature fields separately.\n */\n function recover(\n bytes32 hash,\n uint8 v,\n bytes32 r,\n bytes32 s\n ) internal pure returns (address) {\n (address recovered, RecoverError error) = tryRecover(hash, v, r, s);\n _throwError(error);\n return recovered;\n }\n\n /**\n * @dev Returns an Ethereum Signed Message, created from a `hash`. This\n * produces hash corresponding to the one signed with the\n * https://eth.wiki/json-rpc/API#eth_sign[`eth_sign`]\n * JSON-RPC method as part of EIP-191.\n *\n * See {recover}.\n */\n function toEthSignedMessageHash(bytes32 hash) internal pure returns (bytes32) {\n // 32 is the length in bytes of hash,\n // enforced by the type signature above\n return keccak256(abi.encodePacked(\"\\x19Ethereum Signed Message:\\n32\", hash));\n }\n\n /**\n * @dev Returns an Ethereum Signed Message, created from `s`. This\n * produces hash corresponding to the one signed with the\n * https://eth.wiki/json-rpc/API#eth_sign[`eth_sign`]\n * JSON-RPC method as part of EIP-191.\n *\n * See {recover}.\n */\n function toEthSignedMessageHash(bytes memory s) internal pure returns (bytes32) {\n return keccak256(abi.encodePacked(\"\\x19Ethereum Signed Message:\\n\", Strings.toString(s.length), s));\n }\n\n /**\n * @dev Returns an Ethereum Signed Typed Data, created from a\n * `domainSeparator` and a `structHash`. This produces hash corresponding\n * to the one signed with the\n * https://eips.ethereum.org/EIPS/eip-712[`eth_signTypedData`]\n * JSON-RPC method as part of EIP-712.\n *\n * See {recover}.\n */\n function toTypedDataHash(bytes32 domainSeparator, bytes32 structHash) internal pure returns (bytes32) {\n return keccak256(abi.encodePacked(\"\\x19\\x01\", domainSeparator, structHash));\n }\n}\n"},"lib/openzeppelin-contracts/contracts/utils/Address.sol":{"content":"// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.8.0) (utils/Address.sol)\n\npragma solidity ^0.8.1;\n\n/**\n * @dev Collection of functions related to the address type\n */\nlibrary Address {\n /**\n * @dev Returns true if `account` is a contract.\n *\n * [IMPORTANT]\n * ====\n * It is unsafe to assume that an address for which this function returns\n * false is an externally-owned account (EOA) and not a contract.\n *\n * Among others, `isContract` will return false for the following\n * types of addresses:\n *\n * - an externally-owned account\n * - a contract in construction\n * - an address where a contract will be created\n * - an address where a contract lived, but was destroyed\n * ====\n *\n * [IMPORTANT]\n * ====\n * You shouldn't rely on `isContract` to protect against flash loan attacks!\n *\n * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets\n * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract\n * constructor.\n * ====\n */\n function isContract(address account) internal view returns (bool) {\n // This method relies on extcodesize/address.code.length, which returns 0\n // for contracts in construction, since the code is only stored at the end\n // of the constructor execution.\n\n return account.code.length > 0;\n }\n\n /**\n * @dev Replacement for Solidity's `transfer`: sends `amount` wei to\n * `recipient`, forwarding all available gas and reverting on errors.\n *\n * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost\n * of certain opcodes, possibly making contracts go over the 2300 gas limit\n * imposed by `transfer`, making them unable to receive funds via\n * `transfer`. {sendValue} removes this limitation.\n *\n * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].\n *\n * IMPORTANT: because control is transferred to `recipient`, care must be\n * taken to not create reentrancy vulnerabilities. Consider using\n * {ReentrancyGuard} or the\n * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].\n */\n function sendValue(address payable recipient, uint256 amount) internal {\n require(address(this).balance >= amount, \"Address: insufficient balance\");\n\n (bool success, ) = recipient.call{value: amount}(\"\");\n require(success, \"Address: unable to send value, recipient may have reverted\");\n }\n\n /**\n * @dev Performs a Solidity function call using a low level `call`. A\n * plain `call` is an unsafe replacement for a function call: use this\n * function instead.\n *\n * If `target` reverts with a revert reason, it is bubbled up by this\n * function (like regular Solidity function calls).\n *\n * Returns the raw returned data. To convert to the expected return value,\n * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].\n *\n * Requirements:\n *\n * - `target` must be a contract.\n * - calling `target` with `data` must not revert.\n *\n * _Available since v3.1._\n */\n function functionCall(address target, bytes memory data) internal returns (bytes memory) {\n return functionCallWithValue(target, data, 0, \"Address: low-level call failed\");\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with\n * `errorMessage` as a fallback revert reason when `target` reverts.\n *\n * _Available since v3.1._\n */\n function functionCall(\n address target,\n bytes memory data,\n string memory errorMessage\n ) internal returns (bytes memory) {\n return functionCallWithValue(target, data, 0, errorMessage);\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\n * but also transferring `value` wei to `target`.\n *\n * Requirements:\n *\n * - the calling contract must have an ETH balance of at least `value`.\n * - the called Solidity function must be `payable`.\n *\n * _Available since v3.1._\n */\n function functionCallWithValue(\n address target,\n bytes memory data,\n uint256 value\n ) internal returns (bytes memory) {\n return functionCallWithValue(target, data, value, \"Address: low-level call with value failed\");\n }\n\n /**\n * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but\n * with `errorMessage` as a fallback revert reason when `target` reverts.\n *\n * _Available since v3.1._\n */\n function functionCallWithValue(\n address target,\n bytes memory data,\n uint256 value,\n string memory errorMessage\n ) internal returns (bytes memory) {\n require(address(this).balance >= value, \"Address: insufficient balance for call\");\n (bool success, bytes memory returndata) = target.call{value: value}(data);\n return verifyCallResultFromTarget(target, success, returndata, errorMessage);\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\n * but performing a static call.\n *\n * _Available since v3.3._\n */\n function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {\n return functionStaticCall(target, data, \"Address: low-level static call failed\");\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],\n * but performing a static call.\n *\n * _Available since v3.3._\n */\n function functionStaticCall(\n address target,\n bytes memory data,\n string memory errorMessage\n ) internal view returns (bytes memory) {\n (bool success, bytes memory returndata) = target.staticcall(data);\n return verifyCallResultFromTarget(target, success, returndata, errorMessage);\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\n * but performing a delegate call.\n *\n * _Available since v3.4._\n */\n function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {\n return functionDelegateCall(target, data, \"Address: low-level delegate call failed\");\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],\n * but performing a delegate call.\n *\n * _Available since v3.4._\n */\n function functionDelegateCall(\n address target,\n bytes memory data,\n string memory errorMessage\n ) internal returns (bytes memory) {\n (bool success, bytes memory returndata) = target.delegatecall(data);\n return verifyCallResultFromTarget(target, success, returndata, errorMessage);\n }\n\n /**\n * @dev Tool to verify that a low level call to smart-contract was successful, and revert (either by bubbling\n * the revert reason or using the provided one) in case of unsuccessful call or if target was not a contract.\n *\n * _Available since v4.8._\n */\n function verifyCallResultFromTarget(\n address target,\n bool success,\n bytes memory returndata,\n string memory errorMessage\n ) internal view returns (bytes memory) {\n if (success) {\n if (returndata.length == 0) {\n // only check isContract if the call was successful and the return data is empty\n // otherwise we already know that it was a contract\n require(isContract(target), \"Address: call to non-contract\");\n }\n return returndata;\n } else {\n _revert(returndata, errorMessage);\n }\n }\n\n /**\n * @dev Tool to verify that a low level call was successful, and revert if it wasn't, either by bubbling the\n * revert reason or using the provided one.\n *\n * _Available since v4.3._\n */\n function verifyCallResult(\n bool success,\n bytes memory returndata,\n string memory errorMessage\n ) internal pure returns (bytes memory) {\n if (success) {\n return returndata;\n } else {\n _revert(returndata, errorMessage);\n }\n }\n\n function _revert(bytes memory returndata, string memory errorMessage) private pure {\n // Look for revert reason and bubble it up if present\n if (returndata.length > 0) {\n // The easiest way to bubble the revert reason is using memory via assembly\n /// @solidity memory-safe-assembly\n assembly {\n let returndata_size := mload(returndata)\n revert(add(32, returndata), returndata_size)\n }\n } else {\n revert(errorMessage);\n }\n }\n}\n"},"lib/openzeppelin-contracts/contracts/interfaces/IERC1271.sol":{"content":"// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (interfaces/IERC1271.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @dev Interface of the ERC1271 standard signature validation method for\n * contracts as defined in https://eips.ethereum.org/EIPS/eip-1271[ERC-1271].\n *\n * _Available since v4.1._\n */\ninterface IERC1271 {\n /**\n * @dev Should return whether the signature provided is valid for the provided data\n * @param hash Hash of the data to be signed\n * @param signature Signature byte array associated with _data\n */\n function isValidSignature(bytes32 hash, bytes memory signature) external view returns (bytes4 magicValue);\n}\n"},"lib/openzeppelin-contracts/contracts/utils/Strings.sol":{"content":"// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.8.0) (utils/Strings.sol)\n\npragma solidity ^0.8.0;\n\nimport \"./math/Math.sol\";\n\n/**\n * @dev String operations.\n */\nlibrary Strings {\n bytes16 private constant _SYMBOLS = \"0123456789abcdef\";\n uint8 private constant _ADDRESS_LENGTH = 20;\n\n /**\n * @dev Converts a `uint256` to its ASCII `string` decimal representation.\n */\n function toString(uint256 value) internal pure returns (string memory) {\n unchecked {\n uint256 length = Math.log10(value) + 1;\n string memory buffer = new string(length);\n uint256 ptr;\n /// @solidity memory-safe-assembly\n assembly {\n ptr := add(buffer, add(32, length))\n }\n while (true) {\n ptr--;\n /// @solidity memory-safe-assembly\n assembly {\n mstore8(ptr, byte(mod(value, 10), _SYMBOLS))\n }\n value /= 10;\n if (value == 0) break;\n }\n return buffer;\n }\n }\n\n /**\n * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation.\n */\n function toHexString(uint256 value) internal pure returns (string memory) {\n unchecked {\n return toHexString(value, Math.log256(value) + 1);\n }\n }\n\n /**\n * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length.\n */\n function toHexString(uint256 value, uint256 length) internal pure returns (string memory) {\n bytes memory buffer = new bytes(2 * length + 2);\n buffer[0] = \"0\";\n buffer[1] = \"x\";\n for (uint256 i = 2 * length + 1; i > 1; --i) {\n buffer[i] = _SYMBOLS[value & 0xf];\n value >>= 4;\n }\n require(value == 0, \"Strings: hex length insufficient\");\n return string(buffer);\n }\n\n /**\n * @dev Converts an `address` with fixed length of 20 bytes to its not checksummed ASCII `string` hexadecimal representation.\n */\n function toHexString(address addr) internal pure returns (string memory) {\n return toHexString(uint256(uint160(addr)), _ADDRESS_LENGTH);\n }\n}\n"},"lib/openzeppelin-contracts/contracts/utils/introspection/ERC165.sol":{"content":"// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (utils/introspection/ERC165.sol)\n\npragma solidity ^0.8.0;\n\nimport \"./IERC165.sol\";\n\n/**\n * @dev Implementation of the {IERC165} interface.\n *\n * Contracts that want to implement ERC165 should inherit from this contract and override {supportsInterface} to check\n * for the additional interface id that will be supported. For example:\n *\n * ```solidity\n * function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {\n * return interfaceId == type(MyInterface).interfaceId || super.supportsInterface(interfaceId);\n * }\n * ```\n *\n * Alternatively, {ERC165Storage} provides an easier to use but more expensive implementation.\n */\nabstract contract ERC165 is IERC165 {\n /**\n * @dev See {IERC165-supportsInterface}.\n */\n function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {\n return interfaceId == type(IERC165).interfaceId;\n }\n}\n"},"lib/openzeppelin-contracts/contracts/proxy/beacon/IBeacon.sol":{"content":"// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (proxy/beacon/IBeacon.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @dev This is the interface that {BeaconProxy} expects of its beacon.\n */\ninterface IBeacon {\n /**\n * @dev Must return an address that can be used as a delegate call target.\n *\n * {BeaconProxy} will check that this address is a contract.\n */\n function implementation() external view returns (address);\n}\n"},"lib/openzeppelin-contracts/contracts/interfaces/draft-IERC1822.sol":{"content":"// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.5.0) (interfaces/draft-IERC1822.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @dev ERC1822: Universal Upgradeable Proxy Standard (UUPS) documents a method for upgradeability through a simplified\n * proxy whose upgrades are fully controlled by the current implementation.\n */\ninterface IERC1822Proxiable {\n /**\n * @dev Returns the storage slot that the proxiable contract assumes is being used to store the implementation\n * address.\n *\n * IMPORTANT: A proxy pointing at a proxiable contract should not be considered proxiable itself, because this risks\n * bricking a proxy that upgrades to it, by delegating to itself until out of gas. Thus it is critical that this\n * function revert if invoked through a proxy.\n */\n function proxiableUUID() external view returns (bytes32);\n}\n"},"lib/openzeppelin-contracts/contracts/utils/StorageSlot.sol":{"content":"// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.7.0) (utils/StorageSlot.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @dev Library for reading and writing primitive types to specific storage slots.\n *\n * Storage slots are often used to avoid storage conflict when dealing with upgradeable contracts.\n * This library helps with reading and writing to such slots without the need for inline assembly.\n *\n * The functions in this library return Slot structs that contain a `value` member that can be used to read or write.\n *\n * Example usage to set ERC1967 implementation slot:\n * ```\n * contract ERC1967 {\n * bytes32 internal constant _IMPLEMENTATION_SLOT = 0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc;\n *\n * function _getImplementation() internal view returns (address) {\n * return StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value;\n * }\n *\n * function _setImplementation(address newImplementation) internal {\n * require(Address.isContract(newImplementation), \"ERC1967: new implementation is not a contract\");\n * StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value = newImplementation;\n * }\n * }\n * ```\n *\n * _Available since v4.1 for `address`, `bool`, `bytes32`, and `uint256`._\n */\nlibrary StorageSlot {\n struct AddressSlot {\n address value;\n }\n\n struct BooleanSlot {\n bool value;\n }\n\n struct Bytes32Slot {\n bytes32 value;\n }\n\n struct Uint256Slot {\n uint256 value;\n }\n\n /**\n * @dev Returns an `AddressSlot` with member `value` located at `slot`.\n */\n function getAddressSlot(bytes32 slot) internal pure returns (AddressSlot storage r) {\n /// @solidity memory-safe-assembly\n assembly {\n r.slot := slot\n }\n }\n\n /**\n * @dev Returns an `BooleanSlot` with member `value` located at `slot`.\n */\n function getBooleanSlot(bytes32 slot) internal pure returns (BooleanSlot storage r) {\n /// @solidity memory-safe-assembly\n assembly {\n r.slot := slot\n }\n }\n\n /**\n * @dev Returns an `Bytes32Slot` with member `value` located at `slot`.\n */\n function getBytes32Slot(bytes32 slot) internal pure returns (Bytes32Slot storage r) {\n /// @solidity memory-safe-assembly\n assembly {\n r.slot := slot\n }\n }\n\n /**\n * @dev Returns an `Uint256Slot` with member `value` located at `slot`.\n */\n function getUint256Slot(bytes32 slot) internal pure returns (Uint256Slot storage r) {\n /// @solidity memory-safe-assembly\n assembly {\n r.slot := slot\n }\n }\n}\n"},"lib/openzeppelin-contracts/contracts/utils/math/Math.sol":{"content":"// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.8.0) (utils/math/Math.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @dev Standard math utilities missing in the Solidity language.\n */\nlibrary Math {\n enum Rounding {\n Down, // Toward negative infinity\n Up, // Toward infinity\n Zero // Toward zero\n }\n\n /**\n * @dev Returns the largest of two numbers.\n */\n function max(uint256 a, uint256 b) internal pure returns (uint256) {\n return a > b ? a : b;\n }\n\n /**\n * @dev Returns the smallest of two numbers.\n */\n function min(uint256 a, uint256 b) internal pure returns (uint256) {\n return a < b ? a : b;\n }\n\n /**\n * @dev Returns the average of two numbers. The result is rounded towards\n * zero.\n */\n function average(uint256 a, uint256 b) internal pure returns (uint256) {\n // (a + b) / 2 can overflow.\n return (a & b) + (a ^ b) / 2;\n }\n\n /**\n * @dev Returns the ceiling of the division of two numbers.\n *\n * This differs from standard division with `/` in that it rounds up instead\n * of rounding down.\n */\n function ceilDiv(uint256 a, uint256 b) internal pure returns (uint256) {\n // (a + b - 1) / b can overflow on addition, so we distribute.\n return a == 0 ? 0 : (a - 1) / b + 1;\n }\n\n /**\n * @notice Calculates floor(x * y / denominator) with full precision. Throws if result overflows a uint256 or denominator == 0\n * @dev Original credit to Remco Bloemen under MIT license (https://xn--2-umb.com/21/muldiv)\n * with further edits by Uniswap Labs also under MIT license.\n */\n function mulDiv(\n uint256 x,\n uint256 y,\n uint256 denominator\n ) internal pure returns (uint256 result) {\n unchecked {\n // 512-bit multiply [prod1 prod0] = x * y. Compute the product mod 2^256 and mod 2^256 - 1, then use\n // use the Chinese Remainder Theorem to reconstruct the 512 bit result. The result is stored in two 256\n // variables such that product = prod1 * 2^256 + prod0.\n uint256 prod0; // Least significant 256 bits of the product\n uint256 prod1; // Most significant 256 bits of the product\n assembly {\n let mm := mulmod(x, y, not(0))\n prod0 := mul(x, y)\n prod1 := sub(sub(mm, prod0), lt(mm, prod0))\n }\n\n // Handle non-overflow cases, 256 by 256 division.\n if (prod1 == 0) {\n return prod0 / denominator;\n }\n\n // Make sure the result is less than 2^256. Also prevents denominator == 0.\n require(denominator > prod1);\n\n ///////////////////////////////////////////////\n // 512 by 256 division.\n ///////////////////////////////////////////////\n\n // Make division exact by subtracting the remainder from [prod1 prod0].\n uint256 remainder;\n assembly {\n // Compute remainder using mulmod.\n remainder := mulmod(x, y, denominator)\n\n // Subtract 256 bit number from 512 bit number.\n prod1 := sub(prod1, gt(remainder, prod0))\n prod0 := sub(prod0, remainder)\n }\n\n // Factor powers of two out of denominator and compute largest power of two divisor of denominator. Always >= 1.\n // See https://cs.stackexchange.com/q/138556/92363.\n\n // Does not overflow because the denominator cannot be zero at this stage in the function.\n uint256 twos = denominator & (~denominator + 1);\n assembly {\n // Divide denominator by twos.\n denominator := div(denominator, twos)\n\n // Divide [prod1 prod0] by twos.\n prod0 := div(prod0, twos)\n\n // Flip twos such that it is 2^256 / twos. If twos is zero, then it becomes one.\n twos := add(div(sub(0, twos), twos), 1)\n }\n\n // Shift in bits from prod1 into prod0.\n prod0 |= prod1 * twos;\n\n // Invert denominator mod 2^256. Now that denominator is an odd number, it has an inverse modulo 2^256 such\n // that denominator * inv = 1 mod 2^256. Compute the inverse by starting with a seed that is correct for\n // four bits. That is, denominator * inv = 1 mod 2^4.\n uint256 inverse = (3 * denominator) ^ 2;\n\n // Use the Newton-Raphson iteration to improve the precision. Thanks to Hensel's lifting lemma, this also works\n // in modular arithmetic, doubling the correct bits in each step.\n inverse *= 2 - denominator * inverse; // inverse mod 2^8\n inverse *= 2 - denominator * inverse; // inverse mod 2^16\n inverse *= 2 - denominator * inverse; // inverse mod 2^32\n inverse *= 2 - denominator * inverse; // inverse mod 2^64\n inverse *= 2 - denominator * inverse; // inverse mod 2^128\n inverse *= 2 - denominator * inverse; // inverse mod 2^256\n\n // Because the division is now exact we can divide by multiplying with the modular inverse of denominator.\n // This will give us the correct result modulo 2^256. Since the preconditions guarantee that the outcome is\n // less than 2^256, this is the final result. We don't need to compute the high bits of the result and prod1\n // is no longer required.\n result = prod0 * inverse;\n return result;\n }\n }\n\n /**\n * @notice Calculates x * y / denominator with full precision, following the selected rounding direction.\n */\n function mulDiv(\n uint256 x,\n uint256 y,\n uint256 denominator,\n Rounding rounding\n ) internal pure returns (uint256) {\n uint256 result = mulDiv(x, y, denominator);\n if (rounding == Rounding.Up && mulmod(x, y, denominator) > 0) {\n result += 1;\n }\n return result;\n }\n\n /**\n * @dev Returns the square root of a number. If the number is not a perfect square, the value is rounded down.\n *\n * Inspired by Henry S. Warren, Jr.'s \"Hacker's Delight\" (Chapter 11).\n */\n function sqrt(uint256 a) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n // For our first guess, we get the biggest power of 2 which is smaller than the square root of the target.\n //\n // We know that the \"msb\" (most significant bit) of our target number `a` is a power of 2 such that we have\n // `msb(a) <= a < 2*msb(a)`. This value can be written `msb(a)=2**k` with `k=log2(a)`.\n //\n // This can be rewritten `2**log2(a) <= a < 2**(log2(a) + 1)`\n // โ†’ `sqrt(2**k) <= sqrt(a) < sqrt(2**(k+1))`\n // โ†’ `2**(k/2) <= sqrt(a) < 2**((k+1)/2) <= 2**(k/2 + 1)`\n //\n // Consequently, `2**(log2(a) / 2)` is a good first approximation of `sqrt(a)` with at least 1 correct bit.\n uint256 result = 1 << (log2(a) >> 1);\n\n // At this point `result` is an estimation with one bit of precision. We know the true value is a uint128,\n // since it is the square root of a uint256. Newton's method converges quadratically (precision doubles at\n // every iteration). 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See the corresponding\n * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section]\n * to learn more about how these ids are created.\n *\n * This function call must use less than 30 000 gas.\n */\n function supportsInterface(bytes4 interfaceId) external view returns 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