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0x48999464c84c924cc1119ec5e0dee2a926cbcd21c6dd5904063ea48430c9e0ed | Exercise Options | 12959043 | 643 days 18 hrs ago | 0x8c42138c925d1049ec6b29f1ecf817b1628e54ba | IN | 0xaf9b415b7f626798ea75fa00d9d6d17c65d9a165 | 0 ETH | 0.000203411257 |
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0x9d4af18702b859a8f5d48dc6160a4affe37142b2e84956a54547ec6fc9a85264 | 11132850 | 658 days 4 hrs ago | 0xdb5a5475002f3a09a033dcf21327c81e5cdd86fb | Contract Creation | 0 ETH |
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Minimal Proxy Contract for 0x47691bca9f8f24baffd1115ffcdeb137badae1e5
Contract Name:
PositionalMarketMastercopy
Compiler Version
v0.8.4+commit.c7e474f2
Optimization Enabled:
Yes with 200 runs
Other Settings:
default evmVersion
Contract Source Code (Solidity Standard Json-Input format)
// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; // Inheritance import "./PositionalMarket.sol"; contract PositionalMarketMastercopy is PositionalMarket { constructor() OwnedWithInit() { // Freeze mastercopy on deployment so it can never be initialized with real arguments initialized = true; } }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; // Inheritance import "../OwnedWithInit.sol"; import "../interfaces/IPositionalMarket.sol"; import "../interfaces/IOracleInstance.sol"; // Libraries import "@openzeppelin/contracts-4.4.1/utils/math/SafeMath.sol"; // Internal references import "./PositionalMarketManager.sol"; import "./Position.sol"; import "@openzeppelin/contracts-4.4.1/token/ERC20/IERC20.sol"; contract PositionalMarket is OwnedWithInit, IPositionalMarket { /* ========== LIBRARIES ========== */ using SafeMath for uint; /* ========== TYPES ========== */ struct Options { Position up; Position down; } struct Times { uint maturity; uint expiry; } struct OracleDetails { bytes32 key; uint strikePrice; uint finalPrice; bool customMarket; address iOracleInstanceAddress; } struct PositionalMarketParameters { address owner; IERC20 sUSD; IPriceFeed priceFeed; address creator; bytes32 oracleKey; uint strikePrice; uint[2] times; // [maturity, expiry] uint deposit; // sUSD deposit bool customMarket; address iOracleInstanceAddress; address up; address down; address limitOrderProvider; address thalesAMM; } /* ========== STATE VARIABLES ========== */ Options public options; Times public override times; OracleDetails public oracleDetails; PositionalMarketManager.Fees public override fees; IPriceFeed public priceFeed; IERC20 public sUSD; IOracleInstance public iOracleInstance; bool public customMarket; // `deposited` tracks the sum of all deposits. // This must explicitly be kept, in case tokens are transferred to the contract directly. uint public override deposited; uint public initialMint; address public override creator; bool public override resolved; /* ========== CONSTRUCTOR ========== */ bool public initialized = false; function initialize(PositionalMarketParameters calldata _parameters) external { require(!initialized, "Positional Market already initialized"); initialized = true; initOwner(_parameters.owner); sUSD = _parameters.sUSD; priceFeed = _parameters.priceFeed; creator = _parameters.creator; oracleDetails = OracleDetails( _parameters.oracleKey, _parameters.strikePrice, 0, _parameters.customMarket, _parameters.iOracleInstanceAddress ); customMarket = _parameters.customMarket; iOracleInstance = IOracleInstance(_parameters.iOracleInstanceAddress); times = Times(_parameters.times[0], _parameters.times[1]); deposited = _parameters.deposit; initialMint = _parameters.deposit; // Instantiate the options themselves options.up = Position(_parameters.up); options.down = Position(_parameters.down); // abi.encodePacked("sUP: ", _oracleKey) // consider naming the option: sUpBTC>[email protected] options.up.initialize("Position Up", "UP", _parameters.limitOrderProvider, _parameters.thalesAMM); options.down.initialize("Position Down", "DOWN", _parameters.limitOrderProvider, _parameters.thalesAMM); _mint(creator, initialMint); // Note: the ERC20 base contract does not have a constructor, so we do not have to worry // about initializing its state separately } /* ---------- External Contracts ---------- */ function _priceFeed() internal view returns (IPriceFeed) { return priceFeed; } function _manager() internal view returns (PositionalMarketManager) { return PositionalMarketManager(owner); } /* ---------- Phases ---------- */ function _matured() internal view returns (bool) { return times.maturity < block.timestamp; } function _expired() internal view returns (bool) { return resolved && (times.expiry < block.timestamp || deposited == 0); } function phase() external view override returns (Phase) { if (!_matured()) { return Phase.Trading; } if (!_expired()) { return Phase.Maturity; } return Phase.Expiry; } /* ---------- Market Resolution ---------- */ function _oraclePrice() internal view returns (uint price) { return _priceFeed().rateForCurrency(oracleDetails.key); } function _oraclePriceAndTimestamp() internal view returns (uint price, uint updatedAt) { return _priceFeed().rateAndUpdatedTime(oracleDetails.key); } function oraclePriceAndTimestamp() external view override returns (uint price, uint updatedAt) { return _oraclePriceAndTimestamp(); } function oraclePrice() external view override returns (uint price) { return _oraclePrice(); } function canResolve() public view override returns (bool) { if (customMarket) { return !resolved && _matured() && iOracleInstance.resolvable(); } else { return !resolved && _matured(); } } function _result() internal view returns (Side) { if (customMarket) { return iOracleInstance.getOutcome() ? Side.Up : Side.Down; } else { uint price; if (resolved) { price = oracleDetails.finalPrice; } else { price = _oraclePrice(); } return oracleDetails.strikePrice <= price ? Side.Up : Side.Down; } } function result() external view override returns (Side) { return _result(); } /* ---------- Option Balances and Mints ---------- */ function _balancesOf(address account) internal view returns (uint up, uint down) { return (options.up.getBalanceOf(account), options.down.getBalanceOf(account)); } function balancesOf(address account) external view override returns (uint up, uint down) { return _balancesOf(account); } function totalSupplies() external view override returns (uint up, uint down) { return (options.up.totalSupply(), options.down.totalSupply()); } function getMaximumBurnable(address account) external view override returns (uint amount) { return _getMaximumBurnable(account); } function getOptions() external view override returns (IPosition up, IPosition down) { up = options.up; down = options.down; } function getOracleDetails() external view override returns ( bytes32 key, uint strikePrice, uint finalPrice ) { key = oracleDetails.key; strikePrice = oracleDetails.strikePrice; finalPrice = oracleDetails.finalPrice; } function _getMaximumBurnable(address account) internal view returns (uint amount) { (uint upBalance, uint downBalance) = _balancesOf(account); return (upBalance > downBalance) ? downBalance : upBalance; } /* ---------- Utilities ---------- */ function _incrementDeposited(uint value) internal returns (uint _deposited) { _deposited = deposited.add(value); deposited = _deposited; _manager().incrementTotalDeposited(value); } function _decrementDeposited(uint value) internal returns (uint _deposited) { _deposited = deposited.sub(value); deposited = _deposited; _manager().decrementTotalDeposited(value); } function _requireManagerNotPaused() internal view { require(!_manager().paused(), "This action cannot be performed while the contract is paused"); } function requireUnpaused() external view { _requireManagerNotPaused(); } /* ========== MUTATIVE FUNCTIONS ========== */ /* ---------- Minting ---------- */ function mint(uint value) external override duringMinting { if (value == 0) { return; } _mint(msg.sender, value); _incrementDeposited(value); _manager().transferSusdTo(msg.sender, address(this), value); } function _mint(address minter, uint amount) internal { options.up.mint(minter, amount); options.down.mint(minter, amount); emit Mint(Side.Up, minter, amount); emit Mint(Side.Down, minter, amount); } function burnOptionsMaximum() external override { _burnOptions(msg.sender, _getMaximumBurnable(msg.sender)); } function burnOptions(uint amount) external override { _burnOptions(msg.sender, amount); } function _burnOptions(address account, uint amount) internal { require(amount > 0, "Can not burn zero amount!"); require(_getMaximumBurnable(account) >= amount, "There is not enough options!"); // decrease deposit _decrementDeposited(amount); // decrease up and down options options.up.exerciseWithAmount(account, amount); options.down.exerciseWithAmount(account, amount); // transfer balance sUSD.transfer(account, amount); // emit events emit OptionsBurned(account, amount); } /* ---------- Custom oracle configuration ---------- */ function setIOracleInstance(address _address) external onlyOwner { iOracleInstance = IOracleInstance(_address); emit SetIOracleInstance(_address); } function setPriceFeed(address _address) external onlyOwner { priceFeed = IPriceFeed(_address); emit SetPriceFeed(_address); } function setsUSD(address _address) external onlyOwner { sUSD = IERC20(_address); emit SetsUSD(_address); } /* ---------- Market Resolution ---------- */ function resolve() external onlyOwner afterMaturity managerNotPaused { require(canResolve(), "Can not resolve market"); uint price; uint updatedAt; if (!customMarket) { (price, updatedAt) = _oraclePriceAndTimestamp(); oracleDetails.finalPrice = price; } resolved = true; emit MarketResolved(_result(), price, updatedAt, deposited, 0, 0); } /* ---------- Claiming and Exercising Options ---------- */ function exerciseOptions() external override afterMaturity returns (uint) { // The market must be resolved if it has not been. // the first one to exercise pays the gas fees. Might be worth splitting it up. if (!resolved) { _manager().resolveMarket(address(this)); } // If the account holds no options, revert. (uint upBalance, uint downBalance) = _balancesOf(msg.sender); require(upBalance != 0 || downBalance != 0, "Nothing to exercise"); // Each option only needs to be exercised if the account holds any of it. if (upBalance != 0) { options.up.exercise(msg.sender); } if (downBalance != 0) { options.down.exercise(msg.sender); } // Only pay out the side that won. uint payout = (_result() == Side.Up) ? upBalance : downBalance; emit OptionsExercised(msg.sender, payout); if (payout != 0) { _decrementDeposited(payout); sUSD.transfer(msg.sender, payout); } return payout; } /* ---------- Market Expiry ---------- */ function _selfDestruct(address payable beneficiary) internal { uint _deposited = deposited; if (_deposited != 0) { _decrementDeposited(_deposited); } // Transfer the balance rather than the deposit value in case there are any synths left over // from direct transfers. uint balance = sUSD.balanceOf(address(this)); if (balance != 0) { sUSD.transfer(beneficiary, balance); } // Destroy the option tokens before destroying the market itself. options.up.expire(beneficiary); options.down.expire(beneficiary); selfdestruct(beneficiary); } function expire(address payable beneficiary) external onlyOwner { require(_expired(), "Unexpired options remaining"); emit Expired(beneficiary); _selfDestruct(beneficiary); } /* ========== MODIFIERS ========== */ modifier duringMinting() { require(!_matured(), "Minting inactive"); _; } modifier afterMaturity() { require(_matured(), "Not yet mature"); _; } modifier managerNotPaused() { _requireManagerNotPaused(); _; } /* ========== EVENTS ========== */ event Mint(Side side, address indexed account, uint value); event MarketResolved( Side result, uint oraclePrice, uint oracleTimestamp, uint deposited, uint poolFees, uint creatorFees ); event OptionsExercised(address indexed account, uint value); event OptionsBurned(address indexed account, uint value); event SetZeroExAddress(address _zeroExAddress); event SetZeroExAddressAtInit(address _zeroExAddress); event SetsUSD(address _address); event SetPriceFeed(address _address); event SetIOracleInstance(address _address); event Expired(address beneficiary); }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; contract OwnedWithInit { address public owner; address public nominatedOwner; constructor() {} function initOwner(address _owner) internal { require(owner == address(0), "Init can only be called when owner is 0"); owner = _owner; emit OwnerChanged(address(0), _owner); } function nominateNewOwner(address _owner) external onlyOwner { nominatedOwner = _owner; emit OwnerNominated(_owner); } function acceptOwnership() external { require(msg.sender == nominatedOwner, "You must be nominated before you can accept ownership"); emit OwnerChanged(owner, nominatedOwner); owner = nominatedOwner; nominatedOwner = address(0); } modifier onlyOwner { _onlyOwner(); _; } function _onlyOwner() private view { require(msg.sender == owner, "Only the contract owner may perform this action"); } event OwnerNominated(address newOwner); event OwnerChanged(address oldOwner, address newOwner); }
// SPDX-License-Identifier: MIT pragma solidity >=0.5.16; import "../interfaces/IPositionalMarketManager.sol"; import "../interfaces/IPosition.sol"; import "../interfaces/IPriceFeed.sol"; interface IPositionalMarket { /* ========== TYPES ========== */ enum Phase {Trading, Maturity, Expiry} enum Side {Up, Down} /* ========== VIEWS / VARIABLES ========== */ function getOptions() external view returns (IPosition up, IPosition down); function times() external view returns (uint maturity, uint destructino); function getOracleDetails() external view returns ( bytes32 key, uint strikePrice, uint finalPrice ); function fees() external view returns (uint poolFee, uint creatorFee); function deposited() external view returns (uint); function creator() external view returns (address); function resolved() external view returns (bool); function phase() external view returns (Phase); function oraclePrice() external view returns (uint); function oraclePriceAndTimestamp() external view returns (uint price, uint updatedAt); function canResolve() external view returns (bool); function result() external view returns (Side); function balancesOf(address account) external view returns (uint up, uint down); function totalSupplies() external view returns (uint up, uint down); function getMaximumBurnable(address account) external view returns (uint amount); /* ========== MUTATIVE FUNCTIONS ========== */ function mint(uint value) external; function exerciseOptions() external returns (uint); function burnOptions(uint amount) external; function burnOptionsMaximum() external; }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; import "../interfaces/IPositionalMarket.sol"; interface IOracleInstance { /* ========== VIEWS / VARIABLES ========== */ function getOutcome() external view returns (bool); function resolvable() external view returns (bool); // function targetName() external view returns (string memory); // function targetOutcome() external view returns (string memory); // function eventName() external view returns (string memory); /* ========== MUTATIVE FUNCTIONS ========== */ }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (utils/math/SafeMath.sol) pragma solidity ^0.8.0; // CAUTION // This version of SafeMath should only be used with Solidity 0.8 or later, // because it relies on the compiler's built in overflow checks. /** * @dev Wrappers over Solidity's arithmetic operations. * * NOTE: `SafeMath` is generally not needed starting with Solidity 0.8, since the compiler * now has built in overflow checking. */ library SafeMath { /** * @dev Returns the addition of two unsigned integers, with an overflow flag. * * _Available since v3.4._ */ function tryAdd(uint256 a, uint256 b) internal pure returns (bool, uint256) { unchecked { uint256 c = a + b; if (c < a) return (false, 0); return (true, c); } } /** * @dev Returns the substraction of two unsigned integers, with an overflow flag. * * _Available since v3.4._ */ function trySub(uint256 a, uint256 b) internal pure returns (bool, uint256) { unchecked { if (b > a) return (false, 0); return (true, a - b); } } /** * @dev Returns the multiplication of two unsigned integers, with an overflow flag. * * _Available since v3.4._ */ function tryMul(uint256 a, uint256 b) internal pure returns (bool, uint256) { unchecked { // Gas optimization: this is cheaper than requiring 'a' not being zero, but the // benefit is lost if 'b' is also tested. // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522 if (a == 0) return (true, 0); uint256 c = a * b; if (c / a != b) return (false, 0); return (true, c); } } /** * @dev Returns the division of two unsigned integers, with a division by zero flag. * * _Available since v3.4._ */ function tryDiv(uint256 a, uint256 b) internal pure returns (bool, uint256) { unchecked { if (b == 0) return (false, 0); return (true, a / b); } } /** * @dev Returns the remainder of dividing two unsigned integers, with a division by zero flag. * * _Available since v3.4._ */ function tryMod(uint256 a, uint256 b) internal pure returns (bool, uint256) { unchecked { if (b == 0) return (false, 0); return (true, a % b); } } /** * @dev Returns the addition of two unsigned integers, reverting on * overflow. * * Counterpart to Solidity's `+` operator. * * Requirements: * * - Addition cannot overflow. */ function add(uint256 a, uint256 b) internal pure returns (uint256) { return a + b; } /** * @dev Returns the subtraction of two unsigned integers, reverting on * overflow (when the result is negative). * * Counterpart to Solidity's `-` operator. * * Requirements: * * - Subtraction cannot overflow. */ function sub(uint256 a, uint256 b) internal pure returns (uint256) { return a - b; } /** * @dev Returns the multiplication of two unsigned integers, reverting on * overflow. * * Counterpart to Solidity's `*` operator. * * Requirements: * * - Multiplication cannot overflow. */ function mul(uint256 a, uint256 b) internal pure returns (uint256) { return a * b; } /** * @dev Returns the integer division of two unsigned integers, reverting on * division by zero. The result is rounded towards zero. * * Counterpart to Solidity's `/` operator. * * Requirements: * * - The divisor cannot be zero. */ function div(uint256 a, uint256 b) internal pure returns (uint256) { return a / b; } /** * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo), * reverting when dividing by zero. * * Counterpart to Solidity's `%` operator. This function uses a `revert` * opcode (which leaves remaining gas untouched) while Solidity uses an * invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. */ function mod(uint256 a, uint256 b) internal pure returns (uint256) { return a % b; } /** * @dev Returns the subtraction of two unsigned integers, reverting with custom message on * overflow (when the result is negative). * * CAUTION: This function is deprecated because it requires allocating memory for the error * message unnecessarily. For custom revert reasons use {trySub}. * * Counterpart to Solidity's `-` operator. * * Requirements: * * - Subtraction cannot overflow. */ function sub( uint256 a, uint256 b, string memory errorMessage ) internal pure returns (uint256) { unchecked { require(b <= a, errorMessage); return a - b; } } /** * @dev Returns the integer division of two unsigned integers, reverting with custom message on * division by zero. The result is rounded towards zero. * * Counterpart to Solidity's `/` operator. Note: this function uses a * `revert` opcode (which leaves remaining gas untouched) while Solidity * uses an invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. */ function div( uint256 a, uint256 b, string memory errorMessage ) internal pure returns (uint256) { unchecked { require(b > 0, errorMessage); return a / b; } } /** * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo), * reverting with custom message when dividing by zero. * * CAUTION: This function is deprecated because it requires allocating memory for the error * message unnecessarily. For custom revert reasons use {tryMod}. * * Counterpart to Solidity's `%` operator. This function uses a `revert` * opcode (which leaves remaining gas untouched) while Solidity uses an * invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. */ function mod( uint256 a, uint256 b, string memory errorMessage ) internal pure returns (uint256) { unchecked { require(b > 0, errorMessage); return a % b; } } }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; // Inheritance import "../interfaces/IPositionalMarketManager.sol"; import "../utils/proxy/solidity-0.8.0/ProxyOwned.sol"; import "../utils/proxy/solidity-0.8.0/ProxyPausable.sol"; // Libraries import "../utils/libraries/AddressSetLib.sol"; import "@openzeppelin/contracts-4.4.1/utils/math/SafeMath.sol"; // Internal references import "./PositionalMarketFactory.sol"; import "./PositionalMarket.sol"; import "./Position.sol"; import "../interfaces/IPositionalMarket.sol"; import "../interfaces/IPriceFeed.sol"; import "@openzeppelin/contracts-4.4.1/token/ERC20/IERC20.sol"; import "@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol"; contract PositionalMarketManager is Initializable, ProxyOwned, ProxyPausable, IPositionalMarketManager { /* ========== LIBRARIES ========== */ using SafeMath for uint; using AddressSetLib for AddressSetLib.AddressSet; /* ========== TYPES ========== */ struct Fees { uint poolFee; uint creatorFee; } struct Durations { uint expiryDuration; uint maxTimeToMaturity; } /* ========== STATE VARIABLES ========== */ Durations public override durations; uint public override capitalRequirement; bool public override marketCreationEnabled; bool public customMarketCreationEnabled; bool public onlyWhitelistedAddressesCanCreateMarkets; mapping(address => bool) public whitelistedAddresses; uint public override totalDeposited; AddressSetLib.AddressSet internal _activeMarkets; AddressSetLib.AddressSet internal _maturedMarkets; PositionalMarketManager internal _migratingManager; IPriceFeed public priceFeed; IERC20 public sUSD; address public positionalMarketFactory; /* ========== CONSTRUCTOR ========== */ function initialize( address _owner, IERC20 _sUSD, IPriceFeed _priceFeed, uint _expiryDuration, uint _maxTimeToMaturity, uint _creatorCapitalRequirement ) external initializer { setOwner(_owner); priceFeed = _priceFeed; sUSD = _sUSD; // Temporarily change the owner so that the setters don't revert. owner = msg.sender; marketCreationEnabled = true; customMarketCreationEnabled = false; onlyWhitelistedAddressesCanCreateMarkets = false; setExpiryDuration(_expiryDuration); setMaxTimeToMaturity(_maxTimeToMaturity); setCreatorCapitalRequirement(_creatorCapitalRequirement); } /* ========== SETTERS ========== */ function setPositionalMarketFactory(address _positionalMarketFactory) external onlyOwner { positionalMarketFactory = _positionalMarketFactory; emit SetPositionalMarketFactory(_positionalMarketFactory); } function setWhitelistedAddresses(address[] calldata _whitelistedAddresses) external onlyOwner { require(_whitelistedAddresses.length > 0, "Whitelisted addresses cannot be empty"); onlyWhitelistedAddressesCanCreateMarkets = true; for (uint256 index = 0; index < _whitelistedAddresses.length; index++) { whitelistedAddresses[_whitelistedAddresses[index]] = true; } } function disableWhitelistedAddresses() external onlyOwner { onlyWhitelistedAddressesCanCreateMarkets = false; } function enableWhitelistedAddresses() external onlyOwner { onlyWhitelistedAddressesCanCreateMarkets = true; } function addWhitelistedAddress(address _address) external onlyOwner { whitelistedAddresses[_address] = true; } function removeWhitelistedAddress(address _address) external onlyOwner { delete whitelistedAddresses[_address]; } /* ========== VIEWS ========== */ /* ---------- Market Information ---------- */ function isKnownMarket(address candidate) public view override returns (bool) { return _activeMarkets.contains(candidate) || _maturedMarkets.contains(candidate); } function isActiveMarket(address candidate) public view override returns (bool) { return _activeMarkets.contains(candidate); } function numActiveMarkets() external view override returns (uint) { return _activeMarkets.elements.length; } function activeMarkets(uint index, uint pageSize) external view override returns (address[] memory) { return _activeMarkets.getPage(index, pageSize); } function numMaturedMarkets() external view override returns (uint) { return _maturedMarkets.elements.length; } function maturedMarkets(uint index, uint pageSize) external view override returns (address[] memory) { return _maturedMarkets.getPage(index, pageSize); } function _isValidKey(bytes32 oracleKey) internal view returns (bool) { // If it has a rate, then it's possibly a valid key if (priceFeed.rateForCurrency(oracleKey) != 0) { // But not sUSD if (oracleKey == "sUSD") { return false; } return true; } return false; } /* ========== MUTATIVE FUNCTIONS ========== */ /* ---------- Setters ---------- */ function setExpiryDuration(uint _expiryDuration) public onlyOwner { durations.expiryDuration = _expiryDuration; emit ExpiryDurationUpdated(_expiryDuration); } function setMaxTimeToMaturity(uint _maxTimeToMaturity) public onlyOwner { durations.maxTimeToMaturity = _maxTimeToMaturity; emit MaxTimeToMaturityUpdated(_maxTimeToMaturity); } function setCreatorCapitalRequirement(uint _creatorCapitalRequirement) public onlyOwner { capitalRequirement = _creatorCapitalRequirement; emit CreatorCapitalRequirementUpdated(_creatorCapitalRequirement); } function setPriceFeed(address _address) external onlyOwner { priceFeed = IPriceFeed(_address); emit SetPriceFeed(_address); } function setsUSD(address _address) external onlyOwner { sUSD = IERC20(_address); emit SetsUSD(_address); } /* ---------- Deposit Management ---------- */ function incrementTotalDeposited(uint delta) external onlyActiveMarkets notPaused { totalDeposited = totalDeposited.add(delta); } function decrementTotalDeposited(uint delta) external onlyKnownMarkets notPaused { // NOTE: As individual market debt is not tracked here, the underlying markets // need to be careful never to subtract more debt than they added. // This can't be enforced without additional state/communication overhead. totalDeposited = totalDeposited.sub(delta); } /* ---------- Market Lifecycle ---------- */ function createMarket( bytes32 oracleKey, uint strikePrice, uint maturity, uint initialMint, // initial sUSD to mint options for, bool customMarket, address customOracle ) external override notPaused returns ( IPositionalMarket // no support for returning PositionalMarket polymorphically given the interface ) { require(marketCreationEnabled, "Market creation is disabled"); if (!customMarket) { require(_isValidKey(oracleKey), "Invalid key"); } else { if (!customMarketCreationEnabled) { require(owner == msg.sender, "Only owner can create custom markets"); } require(address(0) != customOracle, "Invalid custom oracle"); } if (onlyWhitelistedAddressesCanCreateMarkets) { require(whitelistedAddresses[msg.sender], "Only whitelisted addresses can create markets"); } require(maturity <= block.timestamp + durations.maxTimeToMaturity, "Maturity too far in the future"); uint expiry = maturity.add(durations.expiryDuration); require(block.timestamp < maturity, "Maturity has to be in the future"); // We also require maturity < expiry. But there is no need to check this. // The market itself validates the capital and skew requirements. require(capitalRequirement <= initialMint, "Insufficient capital"); PositionalMarket market = PositionalMarketFactory(positionalMarketFactory).createMarket( PositionalMarketFactory.PositionCreationMarketParameters( msg.sender, sUSD, priceFeed, oracleKey, strikePrice, [maturity, expiry], initialMint, customMarket, customOracle ) ); _activeMarkets.add(address(market)); // The debt can't be incremented in the new market's constructor because until construction is complete, // the manager doesn't know its address in order to grant it permission. totalDeposited = totalDeposited.add(initialMint); sUSD.transferFrom(msg.sender, address(market), initialMint); (IPosition up, IPosition down) = market.getOptions(); emit MarketCreated( address(market), msg.sender, oracleKey, strikePrice, maturity, expiry, address(up), address(down), customMarket, customOracle ); return market; } function transferSusdTo( address sender, address receiver, uint amount ) external override { //only to be called by markets themselves require(isKnownMarket(address(msg.sender)), "Market unknown."); bool success = sUSD.transferFrom(sender, receiver, amount); if (!success) { revert("TransferFrom function failed"); } } function resolveMarket(address market) external override { require(_activeMarkets.contains(market), "Not an active market"); PositionalMarket(market).resolve(); _activeMarkets.remove(market); _maturedMarkets.add(market); } function expireMarkets(address[] calldata markets) external override notPaused onlyOwner { for (uint i = 0; i < markets.length; i++) { address market = markets[i]; require(isKnownMarket(address(market)), "Market unknown."); // The market itself handles decrementing the total deposits. PositionalMarket(market).expire(payable(msg.sender)); // Note that we required that the market is known, which guarantees // its index is defined and that the list of markets is not empty. _maturedMarkets.remove(market); emit MarketExpired(market); } } function setMarketCreationEnabled(bool enabled) external onlyOwner { if (enabled != marketCreationEnabled) { marketCreationEnabled = enabled; emit MarketCreationEnabledUpdated(enabled); } } function setCustomMarketCreationEnabled(bool enabled) external onlyOwner { customMarketCreationEnabled = enabled; emit SetCustomMarketCreationEnabled(enabled); } function setMigratingManager(PositionalMarketManager manager) external onlyOwner { _migratingManager = manager; emit SetMigratingManager(address(manager)); } function migrateMarkets( PositionalMarketManager receivingManager, bool active, PositionalMarket[] calldata marketsToMigrate ) external onlyOwner { require(address(receivingManager) != address(this), "Can't migrate to self"); uint _numMarkets = marketsToMigrate.length; if (_numMarkets == 0) { return; } AddressSetLib.AddressSet storage markets = active ? _activeMarkets : _maturedMarkets; uint runningDepositTotal; for (uint i; i < _numMarkets; i++) { PositionalMarket market = marketsToMigrate[i]; require(isKnownMarket(address(market)), "Market unknown."); // Remove it from our list and deposit total. markets.remove(address(market)); runningDepositTotal = runningDepositTotal.add(market.deposited()); // Prepare to transfer ownership to the new manager. market.nominateNewOwner(address(receivingManager)); } // Deduct the total deposits of the migrated markets. totalDeposited = totalDeposited.sub(runningDepositTotal); emit MarketsMigrated(receivingManager, marketsToMigrate); // Now actually transfer the markets over to the new manager. receivingManager.receiveMarkets(active, marketsToMigrate); } function receiveMarkets(bool active, PositionalMarket[] calldata marketsToReceive) external { require(msg.sender == address(_migratingManager), "Only permitted for migrating manager."); uint _numMarkets = marketsToReceive.length; if (_numMarkets == 0) { return; } AddressSetLib.AddressSet storage markets = active ? _activeMarkets : _maturedMarkets; uint runningDepositTotal; for (uint i; i < _numMarkets; i++) { PositionalMarket market = marketsToReceive[i]; require(!isKnownMarket(address(market)), "Market already known."); market.acceptOwnership(); markets.add(address(market)); // Update the market with the new manager address, runningDepositTotal = runningDepositTotal.add(market.deposited()); } totalDeposited = totalDeposited.add(runningDepositTotal); emit MarketsReceived(_migratingManager, marketsToReceive); } /* ========== MODIFIERS ========== */ modifier onlyActiveMarkets() { require(_activeMarkets.contains(msg.sender), "Permitted only for active markets."); _; } modifier onlyKnownMarkets() { require(isKnownMarket(msg.sender), "Permitted only for known markets."); _; } /* ========== EVENTS ========== */ event MarketCreated( address market, address indexed creator, bytes32 indexed oracleKey, uint strikePrice, uint maturityDate, uint expiryDate, address up, address down, bool customMarket, address customOracle ); event MarketExpired(address market); event MarketsMigrated(PositionalMarketManager receivingManager, PositionalMarket[] markets); event MarketsReceived(PositionalMarketManager migratingManager, PositionalMarket[] markets); event MarketCreationEnabledUpdated(bool enabled); event ExpiryDurationUpdated(uint duration); event MaxTimeToMaturityUpdated(uint duration); event CreatorCapitalRequirementUpdated(uint value); event SetPositionalMarketFactory(address _positionalMarketFactory); event SetZeroExAddress(address _zeroExAddress); event SetPriceFeed(address _address); event SetsUSD(address _address); event SetCustomMarketCreationEnabled(bool enabled); event SetMigratingManager(address manager); }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; // Inheritance import "@openzeppelin/contracts-4.4.1/token/ERC20/IERC20.sol"; import "../interfaces/IPosition.sol"; // Libraries import "@openzeppelin/contracts-4.4.1/utils/math/SafeMath.sol"; // Internal references import "./PositionalMarket.sol"; contract Position is IERC20, IPosition { /* ========== LIBRARIES ========== */ using SafeMath for uint; /* ========== STATE VARIABLES ========== */ string public name; string public symbol; uint8 public constant decimals = 18; PositionalMarket public market; mapping(address => uint) public override balanceOf; uint public override totalSupply; // The argument order is allowance[owner][spender] mapping(address => mapping(address => uint)) private allowances; // Enforce a 1 cent minimum amount uint internal constant _MINIMUM_AMOUNT = 1e16; address public limitOrderProvider; address public thalesAMM; /* ========== CONSTRUCTOR ========== */ bool public initialized = false; function initialize( string calldata _name, string calldata _symbol, address _limitOrderProvider, address _thalesAMM ) external { require(!initialized, "Positional Market already initialized"); initialized = true; name = _name; symbol = _symbol; market = PositionalMarket(msg.sender); // add through constructor limitOrderProvider = _limitOrderProvider; thalesAMM = _thalesAMM; } function allowance(address owner, address spender) external view override returns (uint256) { if (spender == limitOrderProvider || spender == thalesAMM) { return 0xffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff; } else { return allowances[owner][spender]; } } function _requireMinimumAmount(uint amount) internal pure returns (uint) { require(amount >= _MINIMUM_AMOUNT || amount == 0, "Balance < $0.01"); return amount; } function mint(address minter, uint amount) external onlyMarket { _requireMinimumAmount(amount); totalSupply = totalSupply.add(amount); balanceOf[minter] = balanceOf[minter].add(amount); // Increment rather than assigning since a transfer may have occurred. emit Transfer(address(0), minter, amount); emit Issued(minter, amount); } // This must only be invoked after maturity. function exercise(address claimant) external onlyMarket { uint balance = balanceOf[claimant]; if (balance == 0) { return; } balanceOf[claimant] = 0; totalSupply = totalSupply.sub(balance); emit Transfer(claimant, address(0), balance); emit Burned(claimant, balance); } // This must only be invoked after maturity. function exerciseWithAmount(address claimant, uint amount) external onlyMarket { require(amount > 0, "Can not exercise zero amount!"); require(balanceOf[claimant] >= amount, "Balance must be greather or equal amount that is burned"); balanceOf[claimant] = balanceOf[claimant] - amount; totalSupply = totalSupply.sub(amount); emit Transfer(claimant, address(0), amount); emit Burned(claimant, amount); } // This must only be invoked after the exercise window is complete. // Note that any options which have not been exercised will linger. function expire(address payable beneficiary) external onlyMarket { selfdestruct(beneficiary); } /* ---------- ERC20 Functions ---------- */ function _transfer( address _from, address _to, uint _value ) internal returns (bool success) { market.requireUnpaused(); require(_to != address(0) && _to != address(this), "Invalid address"); uint fromBalance = balanceOf[_from]; require(_value <= fromBalance, "Insufficient balance"); balanceOf[_from] = fromBalance.sub(_value); balanceOf[_to] = balanceOf[_to].add(_value); emit Transfer(_from, _to, _value); return true; } function transfer(address _to, uint _value) external override returns (bool success) { return _transfer(msg.sender, _to, _value); } function transferFrom( address _from, address _to, uint _value ) external override returns (bool success) { if (msg.sender != limitOrderProvider && msg.sender != thalesAMM) { uint fromAllowance = allowances[_from][msg.sender]; require(_value <= fromAllowance, "Insufficient allowance"); allowances[_from][msg.sender] = fromAllowance.sub(_value); } return _transfer(_from, _to, _value); } function approve(address _spender, uint _value) external override returns (bool success) { require(_spender != address(0)); allowances[msg.sender][_spender] = _value; emit Approval(msg.sender, _spender, _value); return true; } function getBalanceOf(address account) external view override returns (uint) { return balanceOf[account]; } function getTotalSupply() external view override returns (uint) { return totalSupply; } /* ========== MODIFIERS ========== */ modifier onlyMarket() { require(msg.sender == address(market), "Only market allowed"); _; } /* ========== EVENTS ========== */ event Issued(address indexed account, uint value); event Burned(address indexed account, uint value); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (token/ERC20/IERC20.sol) pragma solidity ^0.8.0; /** * @dev Interface of the ERC20 standard as defined in the EIP. */ interface IERC20 { /** * @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 `recipient`. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. */ function transfer(address recipient, 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 `sender` to `recipient` 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 sender, address recipient, uint256 amount ) external returns (bool); /** * @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); }
// SPDX-License-Identifier: MIT pragma solidity >=0.5.16; import "../interfaces/IPositionalMarket.sol"; interface IPositionalMarketManager { /* ========== VIEWS / VARIABLES ========== */ function durations() external view returns (uint expiryDuration, uint maxTimeToMaturity); function capitalRequirement() external view returns (uint); function marketCreationEnabled() external view returns (bool); function totalDeposited() external view returns (uint); function numActiveMarkets() external view returns (uint); function activeMarkets(uint index, uint pageSize) external view returns (address[] memory); function numMaturedMarkets() external view returns (uint); function maturedMarkets(uint index, uint pageSize) external view returns (address[] memory); function isActiveMarket(address candidate) external view returns (bool); function isKnownMarket(address candidate) external view returns (bool); /* ========== MUTATIVE FUNCTIONS ========== */ function createMarket( bytes32 oracleKey, uint strikePrice, uint maturity, uint initialMint, // initial sUSD to mint options for, bool customMarket, address customOracle ) external returns (IPositionalMarket); function resolveMarket(address market) external; function expireMarkets(address[] calldata market) external; function transferSusdTo( address sender, address receiver, uint amount ) external; }
// SPDX-License-Identifier: MIT pragma solidity >=0.5.16; import "./IPositionalMarket.sol"; interface IPosition { /* ========== VIEWS / VARIABLES ========== */ function getBalanceOf(address account) external view returns (uint); function getTotalSupply() external view returns (uint); }
// SPDX-License-Identifier: MIT pragma solidity >=0.5.16; interface IPriceFeed { // Structs struct RateAndUpdatedTime { uint216 rate; uint40 time; } // Mutative functions function addAggregator(bytes32 currencyKey, address aggregatorAddress) external; function removeAggregator(bytes32 currencyKey) external; // Views function rateForCurrency(bytes32 currencyKey) external view returns (uint); function rateAndUpdatedTime(bytes32 currencyKey) external view returns (uint rate, uint time); function getRates() external view returns (uint[] memory); function getCurrencies() external view returns (bytes32[] memory); }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; // Clone of syntetix contract without constructor contract ProxyOwned { address public owner; address public nominatedOwner; bool private _initialized; bool private _transferredAtInit; function setOwner(address _owner) public { require(_owner != address(0), "Owner address cannot be 0"); require(!_initialized, "Already initialized, use nominateNewOwner"); _initialized = true; owner = _owner; emit OwnerChanged(address(0), _owner); } function nominateNewOwner(address _owner) external onlyOwner { nominatedOwner = _owner; emit OwnerNominated(_owner); } function acceptOwnership() external { require(msg.sender == nominatedOwner, "You must be nominated before you can accept ownership"); emit OwnerChanged(owner, nominatedOwner); owner = nominatedOwner; nominatedOwner = address(0); } function transferOwnershipAtInit(address proxyAddress) external onlyOwner { require(proxyAddress != address(0), "Invalid address"); require(!_transferredAtInit, "Already transferred"); owner = proxyAddress; _transferredAtInit = true; emit OwnerChanged(owner, proxyAddress); } modifier onlyOwner { _onlyOwner(); _; } function _onlyOwner() private view { require(msg.sender == owner, "Only the contract owner may perform this action"); } event OwnerNominated(address newOwner); event OwnerChanged(address oldOwner, address newOwner); }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; // Inheritance import "./ProxyOwned.sol"; // Clone of syntetix contract without constructor contract ProxyPausable is ProxyOwned { uint public lastPauseTime; bool public paused; /** * @notice Change the paused state of the contract * @dev Only the contract owner may call this. */ function setPaused(bool _paused) external onlyOwner { // Ensure we're actually changing the state before we do anything if (_paused == paused) { return; } // Set our paused state. paused = _paused; // If applicable, set the last pause time. if (paused) { lastPauseTime = block.timestamp; } // Let everyone know that our pause state has changed. emit PauseChanged(paused); } event PauseChanged(bool isPaused); modifier notPaused { require(!paused, "This action cannot be performed while the contract is paused"); _; } }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; library AddressSetLib { struct AddressSet { address[] elements; mapping(address => uint) indices; } function contains(AddressSet storage set, address candidate) internal view returns (bool) { if (set.elements.length == 0) { return false; } uint index = set.indices[candidate]; return index != 0 || set.elements[0] == candidate; } function getPage( AddressSet storage set, uint index, uint pageSize ) internal view returns (address[] memory) { // NOTE: This implementation should be converted to slice operators if the compiler is updated to v0.6.0+ uint endIndex = index + pageSize; // The check below that endIndex <= index handles overflow. // If the page extends past the end of the list, truncate it. if (endIndex > set.elements.length) { endIndex = set.elements.length; } if (endIndex <= index) { return new address[](0); } uint n = endIndex - index; // We already checked for negative overflow. address[] memory page = new address[](n); for (uint i; i < n; i++) { page[i] = set.elements[i + index]; } return page; } function add(AddressSet storage set, address element) internal { // Adding to a set is an idempotent operation. if (!contains(set, element)) { set.indices[element] = set.elements.length; set.elements.push(element); } } function remove(AddressSet storage set, address element) internal { require(contains(set, element), "Element not in set."); // Replace the removed element with the last element of the list. uint index = set.indices[element]; uint lastIndex = set.elements.length - 1; // We required that element is in the list, so it is not empty. if (index != lastIndex) { // No need to shift the last element if it is the one we want to delete. address shiftedElement = set.elements[lastIndex]; set.elements[index] = shiftedElement; set.indices[shiftedElement] = index; } set.elements.pop(); delete set.indices[element]; } }
pragma solidity ^0.8.0; // Inheritance import "../utils/proxy/solidity-0.8.0/ProxyOwned.sol"; // Internal references import "./Position.sol"; import "./PositionalMarket.sol"; import "./PositionalMarketFactory.sol"; import "../interfaces/IPriceFeed.sol"; import "../interfaces/IPositionalMarket.sol"; import "@openzeppelin/contracts-4.4.1/token/ERC20/IERC20.sol"; import "@openzeppelin/contracts-4.4.1/proxy/Clones.sol"; import "@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol"; contract PositionalMarketFactory is Initializable, ProxyOwned { /* ========== STATE VARIABLES ========== */ address public positionalMarketManager; address public positionalMarketMastercopy; address public positionMastercopy; address public limitOrderProvider; address public thalesAMM; struct PositionCreationMarketParameters { address creator; IERC20 _sUSD; IPriceFeed _priceFeed; bytes32 oracleKey; uint strikePrice; uint[2] times; // [maturity, expiry] uint initialMint; bool customMarket; address customOracle; } /* ========== INITIALIZER ========== */ function initialize(address _owner) external initializer { setOwner(_owner); } /* ========== MUTATIVE FUNCTIONS ========== */ function createMarket(PositionCreationMarketParameters calldata _parameters) external returns (PositionalMarket) { require(positionalMarketManager == msg.sender, "Only permitted by the manager."); PositionalMarket pom = PositionalMarket( Clones.clone(positionalMarketMastercopy) ); Position up = Position(Clones.clone(positionMastercopy)); Position down = Position(Clones.clone(positionMastercopy)); pom.initialize( PositionalMarket.PositionalMarketParameters( positionalMarketManager, _parameters._sUSD, _parameters._priceFeed, _parameters.creator, _parameters.oracleKey, _parameters.strikePrice, _parameters.times, _parameters.initialMint, _parameters.customMarket, _parameters.customOracle, address(up), address(down), limitOrderProvider, thalesAMM ) ); emit MarketCreated( address(pom), _parameters.oracleKey, _parameters.strikePrice, _parameters.times[0], _parameters.times[1], _parameters.initialMint, _parameters.customMarket, _parameters.customOracle ); return pom; } /* ========== SETTERS ========== */ function setPositionalMarketManager(address _positionalMarketManager) external onlyOwner { positionalMarketManager = _positionalMarketManager; emit PositionalMarketManagerChanged(_positionalMarketManager); } function setPositionalMarketMastercopy(address _positionalMarketMastercopy) external onlyOwner { positionalMarketMastercopy = _positionalMarketMastercopy; emit PositionalMarketMastercopyChanged(_positionalMarketMastercopy); } function setPositionMastercopy(address _positionMastercopy) external onlyOwner { positionMastercopy = _positionMastercopy; emit PositionMastercopyChanged(_positionMastercopy); } function setLimitOrderProvider(address _limitOrderProvider) external onlyOwner { limitOrderProvider = _limitOrderProvider; emit SetLimitOrderProvider(_limitOrderProvider); } function setThalesAMM(address _thalesAMM) external onlyOwner { thalesAMM = _thalesAMM; emit SetThalesAMM(_thalesAMM); } event PositionalMarketManagerChanged(address _positionalMarketManager); event PositionalMarketMastercopyChanged(address _positionalMarketMastercopy); event PositionMastercopyChanged(address _positionMastercopy); event SetThalesAMM(address _thalesAMM); event SetLimitOrderProvider(address _limitOrderProvider); event MarketCreated( address market, bytes32 indexed oracleKey, uint strikePrice, uint maturityDate, uint expiryDate, uint initialMint, bool customMarket, address customOracle ); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (proxy/utils/Initializable.sol) pragma solidity ^0.8.0; 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 a proxied contract can't have 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. * * 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 initialize the implementation contract, you can either invoke the * initializer manually, or you can include a constructor to automatically mark it as initialized when it is deployed: * * [.hljs-theme-light.nopadding] * ``` * /// @custom:oz-upgrades-unsafe-allow constructor * constructor() initializer {} * ``` * ==== */ abstract contract Initializable { /** * @dev Indicates that the contract has been initialized. */ bool private _initialized; /** * @dev Indicates that the contract is in the process of being initialized. */ bool private _initializing; /** * @dev Modifier to protect an initializer function from being invoked twice. */ modifier initializer() { // If the contract is initializing we ignore whether _initialized is set in order to support multiple // inheritance patterns, but we only do this in the context of a constructor, because in other contexts the // contract may have been reentered. require(_initializing ? _isConstructor() : !_initialized, "Initializable: contract is already initialized"); bool isTopLevelCall = !_initializing; if (isTopLevelCall) { _initializing = true; _initialized = true; } _; if (isTopLevelCall) { _initializing = false; } } /** * @dev Modifier to protect an initialization function so that it can only be invoked by functions with the * {initializer} modifier, directly or indirectly. */ modifier onlyInitializing() { require(_initializing, "Initializable: contract is not initializing"); _; } function _isConstructor() private view returns (bool) { return !AddressUpgradeable.isContract(address(this)); } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (proxy/Clones.sol) pragma solidity ^0.8.0; /** * @dev https://eips.ethereum.org/EIPS/eip-1167[EIP 1167] is a standard for * deploying minimal proxy contracts, also known as "clones". * * > To simply and cheaply clone contract functionality in an immutable way, this standard specifies * > a minimal bytecode implementation that delegates all calls to a known, fixed address. * * The library includes functions to deploy a proxy using either `create` (traditional deployment) or `create2` * (salted deterministic deployment). It also includes functions to predict the addresses of clones deployed using the * deterministic method. * * _Available since v3.4._ */ library Clones { /** * @dev Deploys and returns the address of a clone that mimics the behaviour of `implementation`. * * This function uses the create opcode, which should never revert. */ function clone(address implementation) internal returns (address instance) { assembly { let ptr := mload(0x40) mstore(ptr, 0x3d602d80600a3d3981f3363d3d373d3d3d363d73000000000000000000000000) mstore(add(ptr, 0x14), shl(0x60, implementation)) mstore(add(ptr, 0x28), 0x5af43d82803e903d91602b57fd5bf30000000000000000000000000000000000) instance := create(0, ptr, 0x37) } require(instance != address(0), "ERC1167: create failed"); } /** * @dev Deploys and returns the address of a clone that mimics the behaviour of `implementation`. * * This function uses the create2 opcode and a `salt` to deterministically deploy * the clone. Using the same `implementation` and `salt` multiple time will revert, since * the clones cannot be deployed twice at the same address. */ function cloneDeterministic(address implementation, bytes32 salt) internal returns (address instance) { assembly { let ptr := mload(0x40) mstore(ptr, 0x3d602d80600a3d3981f3363d3d373d3d3d363d73000000000000000000000000) mstore(add(ptr, 0x14), shl(0x60, implementation)) mstore(add(ptr, 0x28), 0x5af43d82803e903d91602b57fd5bf30000000000000000000000000000000000) instance := create2(0, ptr, 0x37, salt) } require(instance != address(0), "ERC1167: create2 failed"); } /** * @dev Computes the address of a clone deployed using {Clones-cloneDeterministic}. */ function predictDeterministicAddress( address implementation, bytes32 salt, address deployer ) internal pure returns (address predicted) { assembly { let ptr := mload(0x40) mstore(ptr, 0x3d602d80600a3d3981f3363d3d373d3d3d363d73000000000000000000000000) mstore(add(ptr, 0x14), shl(0x60, implementation)) mstore(add(ptr, 0x28), 0x5af43d82803e903d91602b57fd5bf3ff00000000000000000000000000000000) mstore(add(ptr, 0x38), shl(0x60, deployer)) mstore(add(ptr, 0x4c), salt) mstore(add(ptr, 0x6c), keccak256(ptr, 0x37)) predicted := keccak256(add(ptr, 0x37), 0x55) } } /** * @dev Computes the address of a clone deployed using {Clones-cloneDeterministic}. */ function predictDeterministicAddress(address implementation, bytes32 salt) internal view returns (address predicted) { return predictDeterministicAddress(implementation, salt, address(this)); } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (utils/Address.sol) pragma solidity ^0.8.0; /** * @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 * ==== */ function isContract(address account) internal view returns (bool) { // This method relies on extcodesize, which returns 0 for contracts in // construction, since the code is only stored at the end of the // constructor execution. uint256 size; assembly { size := extcodesize(account) } return size > 0; } /** * @dev Replacement for Solidity's `transfer`: sends `amount` wei to * `recipient`, forwarding all available gas and reverting on errors. * * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost * of certain opcodes, possibly making contracts go over the 2300 gas limit * imposed by `transfer`, making them unable to receive funds via * `transfer`. {sendValue} removes this limitation. * * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more]. * * IMPORTANT: because control is transferred to `recipient`, care must be * taken to not create reentrancy vulnerabilities. Consider using * {ReentrancyGuard} or the * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern]. */ function sendValue(address payable recipient, uint256 amount) internal { require(address(this).balance >= amount, "Address: insufficient balance"); (bool success, ) = recipient.call{value: amount}(""); require(success, "Address: unable to send value, recipient may have reverted"); } /** * @dev Performs a Solidity function call using a low level `call`. A * plain `call` is an unsafe replacement for a function call: use this * function instead. * * If `target` reverts with a revert reason, it is bubbled up by this * function (like regular Solidity function calls). * * Returns the raw returned data. To convert to the expected return value, * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`]. * * Requirements: * * - `target` must be a contract. * - calling `target` with `data` must not revert. * * _Available since v3.1._ */ function functionCall(address target, bytes memory data) internal returns (bytes memory) { return functionCall(target, data, "Address: low-level call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with * `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ */ function functionCall( address target, bytes memory data, string memory errorMessage ) internal returns (bytes memory) { return functionCallWithValue(target, data, 0, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but also transferring `value` wei to `target`. * * Requirements: * * - the calling contract must have an ETH balance of at least `value`. * - the called Solidity function must be `payable`. * * _Available since v3.1._ */ function functionCallWithValue( address target, bytes memory data, uint256 value ) internal returns (bytes memory) { return functionCallWithValue(target, data, value, "Address: low-level call with value failed"); } /** * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but * with `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ */ function functionCallWithValue( address target, bytes memory data, uint256 value, string memory errorMessage ) internal returns (bytes memory) { require(address(this).balance >= value, "Address: insufficient balance for call"); require(isContract(target), "Address: call to non-contract"); (bool success, bytes memory returndata) = target.call{value: value}(data); return verifyCallResult(success, returndata, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a static call. * * _Available since v3.3._ */ function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) { return functionStaticCall(target, data, "Address: low-level static call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`], * but performing a static call. * * _Available since v3.3._ */ function functionStaticCall( address target, bytes memory data, string memory errorMessage ) internal view returns (bytes memory) { require(isContract(target), "Address: static call to non-contract"); (bool success, bytes memory returndata) = target.staticcall(data); return verifyCallResult(success, returndata, errorMessage); } /** * @dev Tool to verifies that a low level call was successful, and revert if it wasn't, either by bubbling the * revert reason using the provided one. * * _Available since v4.3._ */ function verifyCallResult( bool success, bytes memory returndata, string memory errorMessage ) internal pure returns (bytes memory) { if (success) { return returndata; } else { // Look for revert reason and bubble it up if present if (returndata.length > 0) { // The easiest way to bubble the revert reason is using memory via assembly assembly { let returndata_size := mload(returndata) revert(add(32, returndata), returndata_size) } } else { revert(errorMessage); } } } }
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Make sure to use the "Vote Down" button for any spammy posts, and the "Vote Up" for interesting conversations.