Description:
Multi-signature wallet contract requiring multiple confirmations for transaction execution.
Blockchain: Ethereum
Source Code: View Code On The Blockchain
Solidity Source Code:
{{
"language": "Solidity",
"sources": {
"src/Zappers/Modules/Exchanges/HybridCurveUniV3ExchangeHelpers.sol": {
"content": "// SPDX-License-Identifier: MIT
pragma solidity ^0.8.18;
import "../../../Interfaces/IWETH.sol";
import "./Curve/ICurveStableswapNGPool.sol";
import "./UniswapV3/IQuoterV2.sol";
import "../../Interfaces/IExchangeHelpers.sol";
import "../../Interfaces/IcUSD.sol";
import "openzeppelin-contracts/contracts/interfaces/IERC4626.sol";
import "oz-contracts-upgradeable/proxy/utils/Initializable.sol";
import "oz-contracts-upgradeable/access/OwnableUpgradeable.sol";
import "oz-contracts-upgradeable/proxy/utils/UUPSUpgradeable.sol";
/**
* @title HybridCurveUniV3ExchangeHelpers
* @notice Provides exchange rate calculations using Curve and Uniswap V3 for BOLD token swaps
* @dev Upgradeable contract that calculates optimal swap paths and slippage
*/
contract HybridCurveUniV3ExchangeHelpers is
IExchangeHelpers,
Initializable,
OwnableUpgradeable,
UUPSUpgradeable
{
uint256 public DECIMAL_PRECISION;
uint256 public MIN_AMOUNT;
address public WEETH;
address public SUSDE;
address public WBTC;
IERC20 public USDC;
IERC20 public USDT;
IWETH public WETH;
ICurveStableswapNGPool public curvePool;
uint128 public USDC_INDEX;
uint128 public BOLD_TOKEN_INDEX;
uint24 public feeUsdcWeth;
uint24 public feeUsdtUsdc;
mapping(address => uint24) public collateralToUSDTfee;
mapping(address => uint24) public collateralToUsdcFee; // Direct USDC -> Collateral fee
mapping(address => uint24) public collateralToWethFee; // WETH -> Collateral fee
IQuoterV2 public uniV3Quoter;
address public constant LBTC_ADDRESS = 0x8236a87084f8B84306f72007F36F2618A5634494;
uint24 public feeWbtcWeth;
uint24 public feeLbtcWbtc;
// Cap protocol addresses for stcUSD support
address public constant CUSD_ADDRESS = 0xcCcc62962d17b8914c62D74FfB843d73B2a3cccC;
address public constant STCUSD_ADDRESS = 0x88887bE419578051FF9F4eb6C858A951921D8888;
uint256[48] private __gap;
error ZeroAmount();
error AmountTooSmall();
event CollateralFeesSet(address indexed collateral, uint24 usdcFee, uint24 wethFee);
event UsdcWethFeeUpdated(uint24 newFee);
event QuoterUpdated(address indexed oldQuoter, address indexed newQuoter);
event CurvePoolUpdated(address indexed oldPool, address indexed newPool);
event LbtcFeesSet(uint24 feeWbtcWeth, uint24 feeLbtcWbtc);
modifier validAmount(uint256 amount) {
if (amount == 0) revert ZeroAmount();
if (amount < MIN_AMOUNT) revert AmountTooSmall();
_;
}
/// @custom:oz-upgrades-unsafe-allow constructor
constructor() {
_disableInitializers();
}
function initialize(
IERC20 _usdc,
IWETH _weth,
ICurveStableswapNGPool _curvePool,
uint128 _usdcIndex,
uint128 _boldIndex,
uint24 _feeUsdcWeth,
IQuoterV2 _uniV3Quoter,
address _owner
) public initializer {
__Ownable_init();
__UUPSUpgradeable_init();
_transferOwnership(_owner);
DECIMAL_PRECISION = 1e18;
MIN_AMOUNT = 1e6;
WEETH = 0xCd5fE23C85820F7B72D0926FC9b05b43E359b7ee;
SUSDE = 0x9D39A5DE30e57443BfF2A8307A4256c8797A3497;
WBTC = 0x2260FAC5E5542a773Aa44fBCfeDf7C193bc2C599;
USDT = IERC20(0xdAC17F958D2ee523a2206206994597C13D831ec7);
USDC = _usdc;
WETH = _weth;
curvePool = _curvePool;
USDC_INDEX = _usdcIndex;
BOLD_TOKEN_INDEX = _boldIndex;
feeUsdcWeth = _feeUsdcWeth;
feeUsdtUsdc = 100;
uniV3Quoter = _uniV3Quoter;
_initializeCollateralFees();
}
/**
* @notice Calculate collateral amount and slippage for a given BOLD amount
* @param _boldAmount Amount of BOLD tokens to swap
* @param _collToken Target collateral token
* @param _desiredCollAmount Desired collateral amount for slippage calculation
* @return collAmount Calculated collateral amount
* @return deviation Slippage percentage (in 1e18 precision)
*/
function getCollFromBold(uint256 _boldAmount, IERC20 _collToken, uint256 _desiredCollAmount)
external
virtual
validAmount(_boldAmount)
returns (uint256 collAmount, uint256 deviation)
{
address collAddress = address(_collToken);
uint256 curveUsdcAmount = curvePool.get_dy(int128(BOLD_TOKEN_INDEX), int128(USDC_INDEX), _boldAmount);
// Special case for stcUSD (Cap protocol)
if (collAddress == STCUSD_ADDRESS) {
collAmount = _getStcUSDFromUsdc(curveUsdcAmount);
} else {
// Existing Uniswap V3 logic
bytes memory path = _buildSwapPath(collAddress);
(collAmount,,,) = uniV3Quoter.quoteExactInput(path, curveUsdcAmount);
}
if (_desiredCollAmount > 0 && collAmount <= _desiredCollAmount) {
deviation = DECIMAL_PRECISION - (collAmount * DECIMAL_PRECISION / _desiredCollAmount);
}
return (collAmount, deviation);
}
function _buildSwapPath(address collAddress) internal virtual view returns (bytes memory path) {
if (collAddress == address(WETH)) {
path = abi.encodePacked(USDC, feeUsdcWeth, WETH);
} else if (collAddress == LBTC_ADDRESS) {
// Special routing for LBTC: USDC -> WETH -> WBTC -> LBTC
path = abi.encodePacked(USDC, feeUsdcWeth, WETH, feeWbtcWeth, WBTC, feeLbtcWbtc, collAddress);
} else if(collateralToUSDTfee[collAddress] > 0) {
path = abi.encodePacked(USDC, feeUsdtUsdc, USDT, collateralToUSDTfee[collAddress], collAddress);
} else if (collateralToUsdcFee[collAddress] > 0) {
path = abi.encodePacked(USDC, collateralToUsdcFee[collAddress], collAddress);
} else if (collateralToWethFee[collAddress] > 0) {
path = abi.encodePacked(USDC, feeUsdcWeth, WETH, collateralToWethFee[collAddress], collAddress);
} else {
path = abi.encodePacked(USDC, feeUsdcWeth, WETH, uint24(100), collAddress);
}
}
function _initializeCollateralFees() internal virtual {
// SUSDE: USDC -> SUSDT -> SUSDE swap
collateralToUSDTfee[SUSDE] = 100; // 0.01%
// WBTC: USDC -> WETH -> WBTC
collateralToWethFee[WBTC] = 500; // 0.05%
// WEETH: USDC -> WETH -> WEETH
collateralToWethFee[WEETH] = 100; // 0.01%
}
function setCollateralFees(
address _collateral,
uint24 _usdcFee,
uint24 _wethFee
) external virtual onlyOwner {
collateralToUsdcFee[_collateral] = _usdcFee;
collateralToWethFee[_collateral] = _wethFee;
emit CollateralFeesSet(_collateral, _usdcFee, _wethFee);
}
function setUsdcWethFee(uint24 _newFee) external virtual onlyOwner {
feeUsdcWeth = _newFee;
emit UsdcWethFeeUpdated(_newFee);
}
function updateQuoter(IQuoterV2 _newQuoter) external virtual onlyOwner {
address oldQuoter = address(uniV3Quoter);
uniV3Quoter = _newQuoter;
emit QuoterUpdated(oldQuoter, address(_newQuoter));
}
function updateCurvePool(ICurveStableswapNGPool _newPool) external virtual onlyOwner {
address oldPool = address(curvePool);
curvePool = _newPool;
emit CurvePoolUpdated(oldPool, address(_newPool));
}
function setLbtcFees(uint24 _feeWbtcWeth, uint24 _feeLbtcWbtc) external virtual onlyOwner {
feeWbtcWeth = _feeWbtcWeth;
feeLbtcWbtc = _feeLbtcWbtc;
emit LbtcFeesSet(_feeWbtcWeth, _feeLbtcWbtc);
}
/**
* @notice Calculate stcUSD amount from USDC through Cap protocol
* @param usdcAmount Amount of USDC to convert
* @return stcUSDAmount Amount of stcUSD that would be received
*/
function _getStcUSDFromUsdc(uint256 usdcAmount) internal view returns (uint256 stcUSDAmount) {
// Step 1: USDC -> cUSD (via Cap protocol mint)
(uint256 cUSDAmount, ) = IcUSD(CUSD_ADDRESS).getMintAmount(address(USDC), usdcAmount);
// Step 2: cUSD -> stcUSD (via ERC4626 deposit)
stcUSDAmount = IERC4626(STCUSD_ADDRESS).previewDeposit(cUSDAmount);
return stcUSDAmount;
}
function _authorizeUpgrade(address newImplementation) internal virtual override onlyOwner {}
}
"
},
"src/Interfaces/IWETH.sol": {
"content": "// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
import "openzeppelin-contracts/contracts/token/ERC20/extensions/IERC20Metadata.sol";
interface IWETH is IERC20Metadata {
function deposit() external payable;
function withdraw(uint256 wad) external;
}
"
},
"src/Zappers/Modules/Exchanges/Curve/ICurveStableswapNGPool.sol": {
"content": "// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
interface ICurveStableswapNGPool {
function add_liquidity(uint256[] memory amounts, uint256 min_mint_amount) external returns (uint256);
function exchange(int128 i, int128 j, uint256 dx, uint256 min_dy) external returns (uint256 output);
function get_dx(int128 i, int128 j, uint256 dy) external view returns (uint256 dx);
function get_dy(int128 i, int128 j, uint256 dx) external view returns (uint256 dy);
}
"
},
"src/Zappers/Modules/Exchanges/UniswapV3/IQuoterV2.sol": {
"content": "// SPDX-License-Identifier: GPL-2.0-or-later
pragma solidity >=0.7.5;
pragma abicoder v2;
/// @title QuoterV2 Interface
/// @notice Supports quoting the calculated amounts from exact input or exact output swaps.
/// @notice For each pool also tells you the number of initialized ticks crossed and the sqrt price of the pool after the swap.
/// @dev These functions are not marked view because they rely on calling non-view functions and reverting
/// to compute the result. They are also not gas efficient and should not be called on-chain.
interface IQuoterV2 {
/// @notice Returns the amount out received for a given exact input swap without executing the swap
/// @param path The path of the swap, i.e. each token pair and the pool fee
/// @param amountIn The amount of the first token to swap
/// @return amountOut The amount of the last token that would be received
/// @return sqrtPriceX96AfterList List of the sqrt price after the swap for each pool in the path
/// @return initializedTicksCrossedList List of the initialized ticks that the swap crossed for each pool in the path
/// @return gasEstimate The estimate of the gas that the swap consumes
function quoteExactInput(bytes memory path, uint256 amountIn)
external
returns (
uint256 amountOut,
uint160[] memory sqrtPriceX96AfterList,
uint32[] memory initializedTicksCrossedList,
uint256 gasEstimate
);
struct QuoteExactInputSingleParams {
address tokenIn;
address tokenOut;
uint256 amountIn;
uint24 fee;
uint160 sqrtPriceLimitX96;
}
/// @notice Returns the amount out received for a given exact input but for a swap of a single pool
/// @param params The params for the quote, encoded as `QuoteExactInputSingleParams`
/// tokenIn The token being swapped in
/// tokenOut The token being swapped out
/// fee The fee of the token pool to consider for the pair
/// amountIn The desired input amount
/// sqrtPriceLimitX96 The price limit of the pool that cannot be exceeded by the swap
/// @return amountOut The amount of `tokenOut` that would be received
/// @return sqrtPriceX96After The sqrt price of the pool after the swap
/// @return initializedTicksCrossed The number of initialized ticks that the swap crossed
/// @return gasEstimate The estimate of the gas that the swap consumes
function quoteExactInputSingle(QuoteExactInputSingleParams memory params)
external
returns (uint256 amountOut, uint160 sqrtPriceX96After, uint32 initializedTicksCrossed, uint256 gasEstimate);
/// @notice Returns the amount in required for a given exact output swap without executing the swap
/// @param path The path of the swap, i.e. each token pair and the pool fee. Path must be provided in reverse order
/// @param amountOut The amount of the last token to receive
/// @return amountIn The amount of first token required to be paid
/// @return sqrtPriceX96AfterList List of the sqrt price after the swap for each pool in the path
/// @return initializedTicksCrossedList List of the initialized ticks that the swap crossed for each pool in the path
/// @return gasEstimate The estimate of the gas that the swap consumes
function quoteExactOutput(bytes memory path, uint256 amountOut)
external
returns (
uint256 amountIn,
uint160[] memory sqrtPriceX96AfterList,
uint32[] memory initializedTicksCrossedList,
uint256 gasEstimate
);
struct QuoteExactOutputSingleParams {
address tokenIn;
address tokenOut;
uint256 amount;
uint24 fee;
uint160 sqrtPriceLimitX96;
}
/// @notice Returns the amount in required to receive the given exact output amount but for a swap of a single pool
/// @param params The params for the quote, encoded as `QuoteExactOutputSingleParams`
/// tokenIn The token being swapped in
/// tokenOut The token being swapped out
/// fee The fee of the token pool to consider for the pair
/// amountOut The desired output amount
/// sqrtPriceLimitX96 The price limit of the pool that cannot be exceeded by the swap
/// @return amountIn The amount required as the input for the swap in order to receive `amountOut`
/// @return sqrtPriceX96After The sqrt price of the pool after the swap
/// @return initializedTicksCrossed The number of initialized ticks that the swap crossed
/// @return gasEstimate The estimate of the gas that the swap consumes
function quoteExactOutputSingle(QuoteExactOutputSingleParams memory params)
external
returns (uint256 amountIn, uint160 sqrtPriceX96After, uint32 initializedTicksCrossed, uint256 gasEstimate);
}
"
},
"src/Zappers/Interfaces/IExchangeHelpers.sol": {
"content": "// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
import "openzeppelin-contracts/contracts/token/ERC20/IERC20.sol";
interface IExchangeHelpers {
function getCollFromBold(uint256 _boldAmount, IERC20 _collToken, uint256 _desiredCollAmount)
external /* view */
returns (uint256, uint256);
}
"
},
"src/Zappers/Interfaces/IcUSD.sol": {
"content": "// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
interface IcUSD {
/// @notice Mint the cap token using an asset
/// @dev This contract must have approval to move asset from msg.sender
/// @param _asset Whitelisted asset to deposit
/// @param _amountIn Amount of asset to use in the minting
/// @param _minAmountOut Minimum amount to mint
/// @param _receiver Receiver of the minting
/// @param _deadline Deadline of the tx
function mint(address _asset, uint256 _amountIn, uint256 _minAmountOut, address _receiver, uint256 _deadline)
external
returns (uint256 amountOut);
/// @notice Redeem the Cap token for a bundle of assets
/// @dev Assets are withdrawn from the reserve or divested from the underlying vault
/// @param _amountIn Amount of Cap token to burn
/// @param _minAmountsOut Minimum amounts of assets to withdraw
/// @param _receiver Receiver of the withdrawal
/// @param _deadline Deadline of the tx
/// @return amountsOut Amount of assets withdrawn
function redeem(uint256 _amountIn, uint256[] calldata _minAmountsOut, address _receiver, uint256 _deadline)
external
returns (uint256[] memory amountsOut);
/// @notice Preview the amount of Cap token that would be minted for a given asset amount
/// @param _asset Whitelisted asset to deposit
/// @param _amountIn Amount of asset to use in the minting
/// @return amountOut Amount of Cap token that would be minted
/// @return fee Fee charged for the mint
function getMintAmount(address _asset, uint256 _amountIn)
external
view
returns (uint256 amountOut, uint256 fee);
/// @notice Preview the amounts of assets that would be received for redeeming Cap token
/// @param _amountIn Amount of Cap token to burn
/// @return amountsOut Amounts of assets that would be received
/// @return fees Fees charged for each asset
function getRedeemAmount(uint256 _amountIn)
external
view
returns (uint256[] memory amountsOut, uint256[] memory fees);
}
"
},
"lib/openzeppelin-contracts/contracts/interfaces/IERC4626.sol": {
"content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (interfaces/IERC4626.sol)
pragma solidity ^0.8.0;
import "../token/ERC20/IERC20.sol";
import "../token/ERC20/extensions/IERC20Metadata.sol";
/**
* @dev Interface of the ERC4626 "Tokenized Vault Standard", as defined in
* https://eips.ethereum.org/EIPS/eip-4626[ERC-4626].
*
* _Available since v4.7._
*/
interface IERC4626 is IERC20, IERC20Metadata {
event Deposit(address indexed sender, address indexed owner, uint256 assets, uint256 shares);
event Withdraw(
address indexed sender,
address indexed receiver,
address indexed owner,
uint256 assets,
uint256 shares
);
/**
* @dev Returns the address of the underlying token used for the Vault for accounting, depositing, and withdrawing.
*
* - MUST be an ERC-20 token contract.
* - MUST NOT revert.
*/
function asset() external view returns (address assetTokenAddress);
/**
* @dev Returns the total amount of the underlying asset that is “managed” by Vault.
*
* - SHOULD include any compounding that occurs from yield.
* - MUST be inclusive of any fees that are charged against assets in the Vault.
* - MUST NOT revert.
*/
function totalAssets() external view returns (uint256 totalManagedAssets);
/**
* @dev Returns the amount of shares that the Vault would exchange for the amount of assets provided, in an ideal
* scenario where all the conditions are met.
*
* - MUST NOT be inclusive of any fees that are charged against assets in the Vault.
* - MUST NOT show any variations depending on the caller.
* - MUST NOT reflect slippage or other on-chain conditions, when performing the actual exchange.
* - MUST NOT revert.
*
* NOTE: This calculation MAY NOT reflect the “per-user” price-per-share, and instead should reflect the
* “average-user’s” price-per-share, meaning what the average user should expect to see when exchanging to and
* from.
*/
function convertToShares(uint256 assets) external view returns (uint256 shares);
/**
* @dev Returns the amount of assets that the Vault would exchange for the amount of shares provided, in an ideal
* scenario where all the conditions are met.
*
* - MUST NOT be inclusive of any fees that are charged against assets in the Vault.
* - MUST NOT show any variations depending on the caller.
* - MUST NOT reflect slippage or other on-chain conditions, when performing the actual exchange.
* - MUST NOT revert.
*
* NOTE: This calculation MAY NOT reflect the “per-user” price-per-share, and instead should reflect the
* “average-user’s” price-per-share, meaning what the average user should expect to see when exchanging to and
* from.
*/
function convertToAssets(uint256 shares) external view returns (uint256 assets);
/**
* @dev Returns the maximum amount of the underlying asset that can be deposited into the Vault for the receiver,
* through a deposit call.
*
* - MUST return a limited value if receiver is subject to some deposit limit.
* - MUST return 2 ** 256 - 1 if there is no limit on the maximum amount of assets that may be deposited.
* - MUST NOT revert.
*/
function maxDeposit(address receiver) external view returns (uint256 maxAssets);
/**
* @dev Allows an on-chain or off-chain user to simulate the effects of their deposit at the current block, given
* current on-chain conditions.
*
* - MUST return as close to and no more than the exact amount of Vault shares that would be minted in a deposit
* call in the same transaction. I.e. deposit should return the same or more shares as previewDeposit if called
* in the same transaction.
* - MUST NOT account for deposit limits like those returned from maxDeposit and should always act as though the
* deposit would be accepted, regardless if the user has enough tokens approved, etc.
* - MUST be inclusive of deposit fees. Integrators should be aware of the existence of deposit fees.
* - MUST NOT revert.
*
* NOTE: any unfavorable discrepancy between convertToShares and previewDeposit SHOULD be considered slippage in
* share price or some other type of condition, meaning the depositor will lose assets by depositing.
*/
function previewDeposit(uint256 assets) external view returns (uint256 shares);
/**
* @dev Mints shares Vault shares to receiver by depositing exactly amount of underlying tokens.
*
* - MUST emit the Deposit event.
* - MAY support an additional flow in which the underlying tokens are owned by the Vault contract before the
* deposit execution, and are accounted for during deposit.
* - MUST revert if all of assets cannot be deposited (due to deposit limit being reached, slippage, the user not
* approving enough underlying tokens to the Vault contract, etc).
*
* NOTE: most implementations will require pre-approval of the Vault with the Vault’s underlying asset token.
*/
function deposit(uint256 assets, address receiver) external returns (uint256 shares);
/**
* @dev Returns the maximum amount of the Vault shares that can be minted for the receiver, through a mint call.
* - MUST return a limited value if receiver is subject to some mint limit.
* - MUST return 2 ** 256 - 1 if there is no limit on the maximum amount of shares that may be minted.
* - MUST NOT revert.
*/
function maxMint(address receiver) external view returns (uint256 maxShares);
/**
* @dev Allows an on-chain or off-chain user to simulate the effects of their mint at the current block, given
* current on-chain conditions.
*
* - MUST return as close to and no fewer than the exact amount of assets that would be deposited in a mint call
* in the same transaction. I.e. mint should return the same or fewer assets as previewMint if called in the
* same transaction.
* - MUST NOT account for mint limits like those returned from maxMint and should always act as though the mint
* would be accepted, regardless if the user has enough tokens approved, etc.
* - MUST be inclusive of deposit fees. Integrators should be aware of the existence of deposit fees.
* - MUST NOT revert.
*
* NOTE: any unfavorable discrepancy between convertToAssets and previewMint SHOULD be considered slippage in
* share price or some other type of condition, meaning the depositor will lose assets by minting.
*/
function previewMint(uint256 shares) external view returns (uint256 assets);
/**
* @dev Mints exactly shares Vault shares to receiver by depositing amount of underlying tokens.
*
* - MUST emit the Deposit event.
* - MAY support an additional flow in which the underlying tokens are owned by the Vault contract before the mint
* execution, and are accounted for during mint.
* - MUST revert if all of shares cannot be minted (due to deposit limit being reached, slippage, the user not
* approving enough underlying tokens to the Vault contract, etc).
*
* NOTE: most implementations will require pre-approval of the Vault with the Vault’s underlying asset token.
*/
function mint(uint256 shares, address receiver) external returns (uint256 assets);
/**
* @dev Returns the maximum amount of the underlying asset that can be withdrawn from the owner balance in the
* Vault, through a withdraw call.
*
* - MUST return a limited value if owner is subject to some withdrawal limit or timelock.
* - MUST NOT revert.
*/
function maxWithdraw(address owner) external view returns (uint256 maxAssets);
/**
* @dev Allows an on-chain or off-chain user to simulate the effects of their withdrawal at the current block,
* given current on-chain conditions.
*
* - MUST return as close to and no fewer than the exact amount of Vault shares that would be burned in a withdraw
* call in the same transaction. I.e. withdraw should return the same or fewer shares as previewWithdraw if
* called
* in the same transaction.
* - MUST NOT account for withdrawal limits like those returned from maxWithdraw and should always act as though
* the withdrawal would be accepted, regardless if the user has enough shares, etc.
* - MUST be inclusive of withdrawal fees. Integrators should be aware of the existence of withdrawal fees.
* - MUST NOT revert.
*
* NOTE: any unfavorable discrepancy between convertToShares and previewWithdraw SHOULD be considered slippage in
* share price or some other type of condition, meaning the depositor will lose assets by depositing.
*/
function previewWithdraw(uint256 assets) external view returns (uint256 shares);
/**
* @dev Burns shares from owner and sends exactly assets of underlying tokens to receiver.
*
* - MUST emit the Withdraw event.
* - MAY support an additional flow in which the underlying tokens are owned by the Vault contract before the
* withdraw execution, and are accounted for during withdraw.
* - MUST revert if all of assets cannot be withdrawn (due to withdrawal limit being reached, slippage, the owner
* not having enough shares, etc).
*
* Note that some implementations will require pre-requesting to the Vault before a withdrawal may be performed.
* Those methods should be performed separately.
*/
function withdraw(uint256 assets, address receiver, address owner) external returns (uint256 shares);
/**
* @dev Returns the maximum amount of Vault shares that can be redeemed from the owner balance in the Vault,
* through a redeem call.
*
* - MUST return a limited value if owner is subject to some withdrawal limit or timelock.
* - MUST return balanceOf(owner) if owner is not subject to any withdrawal limit or timelock.
* - MUST NOT revert.
*/
function maxRedeem(address owner) external view returns (uint256 maxShares);
/**
* @dev Allows an on-chain or off-chain user to simulate the effects of their redeemption at the current block,
* given current on-chain conditions.
*
* - MUST return as close to and no more than the exact amount of assets that would be withdrawn in a redeem call
* in the same transaction. I.e. redeem should return the same or more assets as previewRedeem if called in the
* same transaction.
* - MUST NOT account for redemption limits like those returned from maxRedeem and should always act as though the
* redemption would be accepted, regardless if the user has enough shares, etc.
* - MUST be inclusive of withdrawal fees. Integrators should be aware of the existence of withdrawal fees.
* - MUST NOT revert.
*
* NOTE: any unfavorable discrepancy between convertToAssets and previewRedeem SHOULD be considered slippage in
* share price or some other type of condition, meaning the depositor will lose assets by redeeming.
*/
function previewRedeem(uint256 shares) external view returns (uint256 assets);
/**
* @dev Burns exactly shares from owner and sends assets of underlying tokens to receiver.
*
* - MUST emit the Withdraw event.
* - MAY support an additional flow in which the underlying tokens are owned by the Vault contract before the
* redeem execution, and are accounted for during redeem.
* - MUST revert if all of shares cannot be redeemed (due to withdrawal limit being reached, slippage, the owner
* not having enough shares, etc).
*
* NOTE: some implementations will require pre-requesting to the Vault before a withdrawal may be performed.
* Those methods should be performed separately.
*/
function redeem(uint256 shares, address receiver, address owner) external returns (uint256 assets);
}
"
},
"lib/oz-contracts-upgradeable/proxy/utils/Initializable.sol": {
"content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (proxy/utils/Initializable.sol)
pragma solidity ^0.8.2;
import "../../utils/AddressUpgradeable.sol";
/**
* @dev This is a base contract to aid in writing upgradeable contracts, or any kind of contract that will be deployed
* behind a proxy. Since proxied contracts do not make use of a constructor, it's common to move constructor logic to an
* external initializer function, usually called `initialize`. It then becomes necessary to protect this initializer
* function so it can only be called once. The {initializer} modifier provided by this contract will have this effect.
*
* The initialization functions use a version number. Once a version number is used, it is consumed and cannot be
* reused. This mechanism prevents re-execution of each "step" but allows the creation of new initialization steps in
* case an upgrade adds a module that needs to be initialized.
*
* For example:
*
* [.hljs-theme-light.nopadding]
* ```solidity
* contract MyToken is ERC20Upgradeable {
* function initialize() initializer public {
* __ERC20_init("MyToken", "MTK");
* }
* }
*
* contract MyTokenV2 is MyToken, ERC20PermitUpgradeable {
* function initializeV2() reinitializer(2) public {
* __ERC20Permit_init("MyToken");
* }
* }
* ```
*
* TIP: To avoid leaving the proxy in an uninitialized state, the initializer function should be called as early as
* possible by providing the encoded function call as the `_data` argument to {ERC1967Proxy-constructor}.
*
* CAUTION: When used with inheritance, manual care must be taken to not invoke a parent initializer twice, or to ensure
* that all initializers are idempotent. This is not verified automatically as constructors are by Solidity.
*
* [CAUTION]
* ====
* Avoid leaving a contract uninitialized.
*
* An uninitialized contract can be taken over by an attacker. This applies to both a proxy and its implementation
* contract, which may impact the proxy. To prevent the implementation contract from being used, you should invoke
* the {_disableInitializers} function in the constructor to automatically lock it when it is deployed:
*
* [.hljs-theme-light.nopadding]
* ```
* /// @custom:oz-upgrades-unsafe-allow constructor
* constructor() {
* _disableInitializers();
* }
* ```
* ====
*/
abstract contract Initializable {
/**
* @dev Indicates that the contract has been initialized.
* @custom:oz-retyped-from bool
*/
uint8 private _initialized;
/**
* @dev Indicates that the contract is in the process of being initialized.
*/
bool private _initializing;
/**
* @dev Triggered when the contract has been initialized or reinitialized.
*/
event Initialized(uint8 version);
/**
* @dev A modifier that defines a protected initializer function that can be invoked at most once. In its scope,
* `onlyInitializing` functions can be used to initialize parent contracts.
*
* Similar to `reinitializer(1)`, except that functions marked with `initializer` can be nested in the context of a
* constructor.
*
* Emits an {Initialized} event.
*/
modifier initializer() {
bool isTopLevelCall = !_initializing;
require(
(isTopLevelCall && _initialized < 1) || (!AddressUpgradeable.isContract(address(this)) && _initialized == 1),
"Initializable: contract is already initialized"
);
_initialized = 1;
if (isTopLevelCall) {
_initializing = true;
}
_;
if (isTopLevelCall) {
_initializing = false;
emit Initialized(1);
}
}
/**
* @dev A modifier that defines a protected reinitializer function that can be invoked at most once, and only if the
* contract hasn't been initialized to a greater version before. In its scope, `onlyInitializing` functions can be
* used to initialize parent contracts.
*
* A reinitializer may be used after the original initialization step. This is essential to configure modules that
* are added through upgrades and that require initialization.
*
* When `version` is 1, this modifier is similar to `initializer`, except that functions marked with `reinitializer`
* cannot be nested. If one is invoked in the context of another, execution will revert.
*
* Note that versions can jump in increments greater than 1; this implies that if multiple reinitializers coexist in
* a contract, executing them in the right order is up to the developer or operator.
*
* WARNING: setting the version to 255 will prevent any future reinitialization.
*
* Emits an {Initialized} event.
*/
modifier reinitializer(uint8 version) {
require(!_initializing && _initialized < version, "Initializable: contract is already initialized");
_initialized = version;
_initializing = true;
_;
_initializing = false;
emit Initialized(version);
}
/**
* @dev Modifier to protect an initialization function so that it can only be invoked by functions with the
* {initializer} and {reinitializer} modifiers, directly or indirectly.
*/
modifier onlyInitializing() {
require(_initializing, "Initializable: contract is not initializing");
_;
}
/**
* @dev Locks the contract, preventing any future reinitialization. This cannot be part of an initializer call.
* Calling this in the constructor of a contract will prevent that contract from being initialized or reinitialized
* to any version. It is recommended to use this to lock implementation contracts that are designed to be called
* through proxies.
*
* Emits an {Initialized} event the first time it is successfully executed.
*/
function _disableInitializers() internal virtual {
require(!_initializing, "Initializable: contract is initializing");
if (_initialized != type(uint8).max) {
_initialized = type(uint8).max;
emit Initialized(type(uint8).max);
}
}
/**
* @dev Returns the highest version that has been initialized. See {reinitializer}.
*/
function _getInitializedVersion() internal view returns (uint8) {
return _initialized;
}
/**
* @dev Returns `true` if the contract is currently initializing. See {onlyInitializing}.
*/
function _isInitializing() internal view returns (bool) {
return _initializing;
}
}
"
},
"lib/oz-contracts-upgradeable/access/OwnableUpgradeable.sol": {
"content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (access/Ownable.sol)
pragma solidity ^0.8.0;
import "../utils/ContextUpgradeable.sol";
import {Initializable} from "../proxy/utils/Initializable.sol";
/**
* @dev Contract module which provides a basic access control mechanism, where
* there is an account (an owner) that can be granted exclusive access to
* specific functions.
*
* By default, the owner account will be the one that deploys the contract. This
* can later be changed with {transferOwnership}.
*
* This module is used through inheritance. It will make available the modifier
* `onlyOwner`, which can be applied to your functions to restrict their use to
* the owner.
*/
abstract contract OwnableUpgradeable is Initializable, ContextUpgradeable {
address private _owner;
event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
/**
* @dev Initializes the contract setting the deployer as the initial owner.
*/
function __Ownable_init() internal onlyInitializing {
__Ownable_init_unchained();
}
function __Ownable_init_unchained() internal onlyInitializing {
_transferOwnership(_msgSender());
}
/**
* @dev Throws if called by any account other than the owner.
*/
modifier onlyOwner() {
_checkOwner();
_;
}
/**
* @dev Returns the address of the current owner.
*/
function owner() public view virtual returns (address) {
return _owner;
}
/**
* @dev Throws if the sender is not the owner.
*/
function _checkOwner() internal view virtual {
require(owner() == _msgSender(), "Ownable: caller is not the owner");
}
/**
* @dev Leaves the contract without owner. It will not be possible to call
* `onlyOwner` functions. Can only be called by the current owner.
*
* NOTE: Renouncing ownership will leave the contract without an owner,
* thereby disabling any functionality that is only available to the owner.
*/
function renounceOwnership() public virtual onlyOwner {
_transferOwnership(address(0));
}
/**
* @dev Transfers ownership of the contract to a new account (`newOwner`).
* Can only be called by the current owner.
*/
function transferOwnership(address newOwner) public virtual onlyOwner {
require(newOwner != address(0), "Ownable: new owner is the zero address");
_transferOwnership(newOwner);
}
/**
* @dev Transfers ownership of the contract to a new account (`newOwner`).
* Internal function without access restriction.
*/
function _transferOwnership(address newOwner) internal virtual {
address oldOwner = _owner;
_owner = newOwner;
emit OwnershipTransferred(oldOwner, newOwner);
}
/**
* @dev This empty reserved space is put in place to allow future versions to add new
* variables without shifting down storage in the inheritance chain.
* See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
*/
uint256[49] private __gap;
}
"
},
"lib/oz-contracts-upgradeable/proxy/utils/UUPSUpgradeable.sol": {
"content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (proxy/utils/UUPSUpgradeable.sol)
pragma solidity ^0.8.0;
import "../../interfaces/draft-IERC1822Upgradeable.sol";
import "../ERC1967/ERC1967UpgradeUpgradeable.sol";
import {Initializable} from "./Initializable.sol";
/**
* @dev An upgradeability mechanism designed for UUPS proxies. The functions included here can perform an upgrade of an
* {ERC1967Proxy}, when this contract is set as the implementation behind such a proxy.
*
* A security mechanism ensures that an upgrade does not turn off upgradeability accidentally, although this risk is
* reinstated if the upgrade retains upgradeability but removes the security mechanism, e.g. by replacing
* `UUPSUpgradeable` with a custom implementation of upgrades.
*
* The {_authorizeUpgrade} function must be overridden to include access restriction to the upgrade mechanism.
*
* _Available since v4.1._
*/
abstract contract UUPSUpgradeable is Initializable, IERC1822ProxiableUpgradeable, ERC1967UpgradeUpgradeable {
/// @custom:oz-upgrades-unsafe-allow state-variable-immutable state-variable-assignment
address private immutable __self = address(this);
/**
* @dev Check that the execution is being performed through a delegatecall call and that the execution context is
* a proxy contract with an implementation (as defined in ERC1967) pointing to self. This should only be the case
* for UUPS and transparent proxies that are using the current contract as their implementation. Execution of a
* function through ERC1167 minimal proxies (clones) would not normally pass this test, but is not guaranteed to
* fail.
*/
modifier onlyProxy() {
require(address(this) != __self, "Function must be called through delegatecall");
require(_getImplementation() == __self, "Function must be called through active proxy");
_;
}
/**
* @dev Check that the execution is not being performed through a delegate call. This allows a function to be
* callable on the implementing contract but not through proxies.
*/
modifier notDelegated() {
require(address(this) == __self, "UUPSUpgradeable: must not be called through delegatecall");
_;
}
function __UUPSUpgradeable_init() internal onlyInitializing {
}
function __UUPSUpgradeable_init_unchained() internal onlyInitializing {
}
/**
* @dev Implementation of the ERC1822 {proxiableUUID} function. This returns the storage slot used by the
* implementation. It is used to validate the implementation's compatibility when performing an upgrade.
*
* IMPORTANT: A proxy pointing at a proxiable contract should not be considered proxiable itself, because this risks
* bricking a proxy that upgrades to it, by delegating to itself until out of gas. Thus it is critical that this
* function revert if invoked through a proxy. This is guaranteed by the `notDelegated` modifier.
*/
function proxiableUUID() external view virtual override notDelegated returns (bytes32) {
return _IMPLEMENTATION_SLOT;
}
/**
* @dev Upgrade the implementation of the proxy to `newImplementation`.
*
* Calls {_authorizeUpgrade}.
*
* Emits an {Upgraded} event.
*
* @custom:oz-upgrades-unsafe-allow-reachable delegatecall
*/
function upgradeTo(address newImplementation) public virtual onlyProxy {
_authorizeUpgrade(newImplementation);
_upgradeToAndCallUUPS(newImplementation, new bytes(0), false);
}
/**
* @dev Upgrade the implementation of the proxy to `newImplementation`, and subsequently execute the function call
* encoded in `data`.
*
* Calls {_authorizeUpgrade}.
*
* Emits an {Upgraded} event.
*
* @custom:oz-upgrades-unsafe-allow-reachable delegatecall
*/
function upgradeToAndCall(address newImplementation, bytes memory data) public payable virtual onlyProxy {
_authorizeUpgrade(newImplementation);
_upgradeToAndCallUUPS(newImplementation, data, true);
}
/**
* @dev Function that should revert when `msg.sender` is not authorized to upgrade the contract. Called by
* {upgradeTo} and {upgradeToAndCall}.
*
* Normally, this function will use an xref:access.adoc[access control] modifier such as {Ownable-onlyOwner}.
*
* ```solidity
* function _authorizeUpgrade(address) internal override onlyOwner {}
* ```
*/
function _authorizeUpgrade(address newImplementation) internal virtual;
/**
* @dev This empty reserved space is put in place to allow future versions to add new
* variables without shifting down storage in the inheritance chain.
* See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
*/
uint256[50] private __gap;
}
"
},
"lib/openzeppelin-contracts/contracts/token/ERC20/extensions/IERC20Metadata.sol": {
"content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC20/extensions/IERC20Metadata.sol)
pragma solidity ^0.8.0;
import "../IERC20.sol";
/**
* @dev Interface for the optional metadata functions from the ERC20 standard.
*
* _Available since v4.1._
*/
interface IERC20Metadata is IERC20 {
/**
* @dev Returns the name of the token.
*/
function name() external view returns (string memory);
/**
* @dev Returns the symbol of the token.
*/
function symbol() external view returns (string memory);
/**
* @dev Returns the decimals places of the token.
*/
function decimals() external view returns (uint8);
}
"
},
"lib/openzeppelin-contracts/contracts/token/ERC20/IERC20.sol": {
"content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (token/ERC20/IERC20.sol)
pragma solidity ^0.8.0;
/**
* @dev Interface of the ERC20 standard as defined in the EIP.
*/
interface IERC20 {
/**
* @dev Emitted when `value` tokens are moved from one account (`from`) to
* another (`to`).
*
* Note that `value` may be zero.
*/
event Transfer(address indexed from, address indexed to, uint256 value);
/**
* @dev Emitted when the allowance of a `spender` for an `owner` is set by
* a call to {approve}. `value` is the new allowance.
*/
event Approval(address indexed owner, address indexed spender, uint256 value);
/**
* @dev Returns the amount of tokens in existence.
*/
function totalSupply() external view returns (uint256);
/**
* @dev Returns the amount of tokens owned by `account`.
*/
function balanceOf(address account) external view returns (uint256);
/**
* @dev Moves `amount` tokens from the caller's account to `to`.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transfer(address to, uint256 amount) external returns (bool);
/**
* @dev Returns the remaining number of tokens that `spender` will be
* allowed to spend on behalf of `owner` through {transferFrom}. This is
* zero by default.
*
* This value changes when {approve} or {transferFrom} are called.
*/
function allowance(address owner, address spender) external view returns (uint256);
/**
* @dev Sets `amount` as the allowance of `spender` over the caller's tokens.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* IMPORTANT: Beware that changing an allowance with this method brings the risk
* that someone may use both the old and the new allowance by unfortunate
* transaction ordering. One possible solution to mitigate this race
* condition is to first reduce the spender's allowance to 0 and set the
* desired value afterwards:
* https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
*
* Emits an {Approval} event.
*/
function approve(address spender, uint256 amount) external returns (bool);
/**
* @dev Moves `amount` tokens from `from` to `to` using the
* allowance mechanism. `amount` is then deducted from the caller's
* allowance.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transferFrom(address from, address to, uint256 amount) external returns (bool);
}
"
},
"lib/oz-contracts-upgradeable/utils/AddressUpgradeable.sol": {
"content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (utils/Address.sol)
pragma solidity ^0.8.1;
/**
* @dev Collection of functions related to the address type
*/
library AddressUpgradeable {
/**
* @dev Returns true if `account` is a contract.
*
* [IMPORTANT]
* ====
* It is unsafe to assume that an address for which this function returns
* false is an externally-owned account (EOA) and not a contract.
*
* Among others, `isContract` will return false for the following
* types of addresses:
*
* - an externally-owned account
* - a contract in construction
* - an address where a contract will be created
* - an address where a contract lived, but was destroyed
*
* Furthermore, `isContract` will also return true if the target contract within
* the same transaction is already scheduled for destruction by `SELFDESTRUCT`,
* which only has an effect at the end of a transaction.
* ====
*
* [IMPORTANT]
* ====
* You shouldn't rely on `isContract` to protect against flash loan attacks!
*
* Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets
* like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract
* constructor.
* ====
*/
function isContract(address account) internal view returns (bool) {
// This method relies on extcodesize/address.code.length, which returns 0
// for contracts in construction, since the code is only stored at the end
// of the constructor execution.
return account.code.length > 0;
}
/**
* @dev Replacement for Solidity's `transfer`: sends `amount` wei to
* `recipient`, forwarding all available gas and reverting on errors.
*
* https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
* of certain opcodes, possibly making contracts go over the 2300 gas limit
* imposed by `transfer`, making them unable to receive funds via
* `transfer`. {sendValue} removes this limitation.
*
* https://consensys.net/diligence/blog/2019/09/stop-using-soliditys-transfer-now/[Learn more].
*
* IMPORTANT: because control is transferred to `recipient`, care must be
* taken to not create reentrancy vulnerabilities. Consider using
* {ReentrancyGuard} or the
* https://solidity.readthedocs.io/en/v0.8.0/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
*/
function sendValue(address payable recipient, uint256 amount) internal {
require(address(this).balance >= amount, "Address: insufficient balance");
(bool success, ) = recipient.call{value: amount}("");
require(success, "Address: unable to send value, recipient may have reverted");
}
/**
* @dev Performs a Solidity function call using a low level `call`. A
* plain `call` is an unsafe replacement for a function call: use this
* function instead.
*
* If `target` reverts with a revert reason, it is bubbled up by this
* function (like regular Solidity function calls).
*
* Returns the raw returned data. To convert to the expected return value,
* use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
*
* Requirements:
*
* - `target` must be a contract.
* - calling `target` with `data` must not revert.
*
* _Available since v3.1._
*/
function functionCall(address target, bytes memory data) internal returns (bytes memory) {
return functionCallWithValue(target, data, 0, "Address: low-level call failed");
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with
* `errorMessage` as a fallback revert reason when `target` reverts.
*
* _Available since v3.1._
*/
function functionCall(
address target,
bytes memory data,
string memory errorMessage
) internal returns (bytes memory) {
return functionCallWithValue(target, data, 0, errorMessage);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but also transferring `value` wei to `target`.
*
* Requirements:
*
* - the calling contract must have an ETH balance of at least `value`.
* - the called Solidity function must be `payable`.
*
* _Available since v3.1._
*/
function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) {
return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
}
/**
* @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but
* with `errorMessage` as a fallback revert reason when `target` reverts.
*
* _Available since v3.1._
*/
function functionCallWithValue(
address target,
bytes memory data,
uint256 value,
string memory errorMessage
) internal returns (bytes memory) {
require(address(this).balance >= value, "Address: insufficient balance for call");
(bool success, bytes memory returndata) = target.call{value: value}(data);
return verifyCallResultFromTarget(target, success, returndata, errorMessage);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but performing a static call.
*
* _Available since v3.3._
*/
function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
return functionStaticCall(target, data, "Address: low-level static call failed");
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
* but performing a static call.
*
* _Available since v3.3._
*/
function functionStaticCall(
address target,
bytes memory data,
string memory errorMessage
) internal view returns (bytes memory) {
(bool success, bytes memory returndata) = target.staticcall(data);
return verifyCallResultFromTarget(target, success, returndata, errorMessage);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but performing a delegate call.
*
* _Available since v3.4._
*/
function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {
return functionDelegateCall(target, data, "Address: low-level delegate call failed");
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
* but performing a delegate call.
*
* _Available since v3.4._
*/
function functionDelegateCall(
address target,
bytes memory data,
string memory errorMessage
) internal returns (bytes memory) {
(bool success, bytes memory returndata) = target.delegatecall(data);
return verifyCallResultFromTarget(target, success, returndata, errorMessage);
}
/**
* @dev Tool to verify that a low level call to smart-contract was successful, and revert (either by bubbling
* the revert reason or using the provided one) in case of unsuccessful call or if target was not a contract.
*
* _Available since v4.8._
*/
function verifyCallResultFromTarget(
address target,
bool success,
bytes memory returndata,
string memory errorMessage
) internal view returns (bytes memory) {
if (success) {
if (returndata.length == 0) {
// only check isContract if the call was successful and the return data is empty
// otherwise we already know that it was a contract
require(isContract(target), "Address: call to non-contract");
}
return returndata;
} else {
_revert(returndata, errorMessage);
}
}
/**
* @dev Tool to verify that a low level call was successful, and revert if it wasn't, either by bubbling the
* revert reason or using the provided one.
*
* _Available since v4.3._
*/
function verifyCallResult(
bool success,
bytes memory returndata,
string memory errorMessage
) internal pure returns (bytes memory) {
if (success) {
return returndata;
} else {
_revert(returndata, errorMessage);
}
}
function _revert(bytes memory returndata, string memory errorMessage) private pure {
// Look for revert reason and bubble it up if present
if (returndata.length > 0) {
// The easiest way to bubble the revert reason is using memory via assembly
/// @solidity memory-safe-assembly
assembly {
let returndata_size := mload(returndata)
revert(add(32, returndata), returndata_size)
}
} else {
revert(errorMessage);
}
}
}
"
},
"lib/oz-contracts-upgradeable/utils/ContextUpgradeable.sol": {
"content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.4) (utils/Context.sol)
pragma solidity ^0.8.0;
import {Initializable} from "../proxy/utils/Initializable.sol";
/**
* @dev Provides information about the current execution context, including the
* sender of the transaction and its data. While these are generally available
* via msg.sender and msg.data, they should not be accessed in such a direct
* manner, since when dealing with meta-transactions the account sending and
* paying for execution may not be the actual sender (as far as an application
* is concerned).
*
* This contract is only required for intermediate, library-like contracts.
*/
abstract contract ContextUpgradeable is Initializable {
function __Context_init() internal onlyInitializing {
}
function __Context_init_unchained() internal onlyInitializing {
}
function _msgSender() internal view virtual returns (address) {
return msg.sender;
}
function _msgData() internal view virtual returns (bytes calldata) {
return msg.data;
}
function _contextSuffixLength() internal view virtual returns (uint256) {
return 0;
}
/**
* @dev This empty reserved space is put in place to allow future versions to add new
* variables without shifting down storage in the inheritance chain.
* See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
*/
uint256[50] private __gap;
}
"
},
"lib/oz-contracts-upgradeable/interfaces/draft-IERC1822Upgradeable.sol": {
"content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.5.0) (interfaces/draft-IERC1822.sol)
pragma solidity ^0.8.0;
/**
* @dev ERC1822: Universal Upgradeable Proxy Standard (UUPS) documents a method for upgradeability through a simplified
* proxy whose upgrades are fully controlled by the current implementation.
*/
interface IERC1822ProxiableUpgradeable {
/**
* @dev Returns the storage slot that the proxiable contract assumes is being used to store the implementation
* address.
*
* IMPORTANT: A proxy pointing at a proxiable contract should not be considered proxiable itself, because this risks
* bricking a proxy that upgrades to it, by delegating to itself until out of gas. Thus it is critical that this
* function revert if invoked through a proxy.
*/
function proxiableUUID() external view returns (bytes32);
}
"
},
"lib/oz-contracts-upgradeable/proxy/ERC1967/ERC1967UpgradeUpgradeable.sol": {
"content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (proxy/ERC1967/ERC1967Upgrade.sol)
pragma solidity ^0.8.2;
import "../beacon/IBeaconUpgradeable.sol";
import "../../interfaces/IERC1967Upgradeable.sol";
import "../../interfaces/draft-IERC1822Upgradeable.sol";
import "../../utils/AddressUpgradeable.sol";
import "../../utils/StorageSlotUpgradeable.sol";
import {Initializable} from "../utils/Initializable.sol";
/**
* @dev This abstract contract provides getters and event emitting update functions for
* https://eips.ethereum.org/EIPS/eip-1967[EIP1967] slots.
*
* _Available since v4.1._
*/
abstract contract ERC1967UpgradeUpgradeable is Initializable, IERC1967Upgradeable {
// This is the keccak-256 hash of "eip1967.proxy.rollback" subtracted by 1
bytes32 private constant _ROLLBACK_SLOT = 0x4910fdfa16fed3260ed0e7147f7cc6da11a60208b5b9406d12a635614ffd9143;
/**
* @dev Storage slot with the address of the current implementation.
* This is the keccak-256 hash of "eip1967.proxy.implementation" subtracted by 1, and is
* validated in the constructor.
*/
bytes32 internal constant _IMPLEMENTATION_SLOT = 0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc;
function __ERC1967Upgrade_init() internal onlyInitializing {
}
function __ERC1967Upgrade_init_unchained() internal onlyInitializing {
}
/**
* @dev Returns the current implementation address.
*/
function _getImplementation() internal view returns (address) {
return StorageSlotUpgradeable.getAddressSlot(_IMPLEMENTATION_SLOT).value;
}
/**
* @dev Stores a new address in the EIP1967 implementation slot.
*/
function _setImplementation(address newImplementation) private {
require(AddressUpgradeable.isContract(newImplementation), "ERC1967: new implementation is not a contract");
StorageSlotUpgradeable.getAddressSlot(_IMPLEMENTATION_SLOT).value = newImplementation;
}
/**
* @dev Perform implementation upgrade
*
* Emits an {Upgraded} event.
*/
function _upgradeTo(address newImplementation) internal {
_setImplementation(newImplementation);
emit Upgraded(newImplementation);
}
/**
* @dev Perform implementation upgrade with additional setup call.
*
* Emits an {Upgraded} event.
*/
function _upgradeToAndCall(address newImplementation, bytes memory data, bool forceCall) internal {
_upgradeTo(newImplementation);
if (data.length > 0 || forceCall) {
AddressUpgradeable.functionDelegateCall(newImplementation, data);
}
}
/**
* @dev Perform implementation upgrade with security checks for UUPS proxies, and additional setup call.
*
* Emits an {Upgraded} event.
*/
function _upgradeToAndCallUUPS(address newImplementation, bytes memory data, bool forceCall) internal {
// Upgrades from old implementations will perform a rollback test. This test requires the new
// implementation to upgrade back to the old, non-ERC1822 compliant, implementation. Removing
// this special case will break upgrade paths from old UUPS implementation to new ones.
if (StorageSlotUpgradeable.getBooleanSlot(_ROLLBACK_SLOT).value) {
_setImplementation(newImplementation);
} else {
try IERC1822ProxiableUpgradeable(newImplementation).proxiableUUID() returns (bytes32 slot) {
require(slot == _IMPLEMENTATION_SLOT, "ERC1967Upgrade: unsupported proxiableUUID");
} catch {
revert("ERC1967Upgrade: new implementation is not UUPS");
}
_upgradeToAndCall(newImplementation, data, forceCall);
}
}
/**
* @dev Storage slot with the admin of the contract.
* This is the keccak-256 hash of "eip196
Submitted on: 2025-11-03 12:40:16
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