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ContractCreator
Latest 25 from a total of 59 transactions
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Withdraw Supplie... | 15461066 | 723 days ago | IN | 0 ETH | 0.0016505 | ||||
Withdraw Supplie... | 13580538 | 1021 days ago | IN | 0 ETH | 0.01489096 | ||||
Supply Ether | 13452615 | 1041 days ago | IN | 0.0001 ETH | 0.00515613 | ||||
Buy Shards | 13452615 | 1041 days ago | IN | 0 ETH | 0.0099986 | ||||
Withdraw Supplie... | 13425292 | 1045 days ago | IN | 0 ETH | 0.00902112 | ||||
Withdraw Supplie... | 13394723 | 1050 days ago | IN | 0 ETH | 0.00989335 | ||||
Transfer Timeloc... | 13394618 | 1050 days ago | IN | 0 ETH | 0.01117821 | ||||
Supply Ether | 13252091 | 1072 days ago | IN | 0.05 ETH | 0.00306866 | ||||
Withdraw Supplie... | 13149205 | 1088 days ago | IN | 0 ETH | 0.00984033 | ||||
Withdraw Supplie... | 13149194 | 1088 days ago | IN | 0 ETH | 0.00918981 | ||||
Buy Shards | 13148964 | 1088 days ago | IN | 0.00299736 ETH | 0.03594662 | ||||
Buy Shards | 13138844 | 1089 days ago | IN | 0.00002978 ETH | 0.01300699 | ||||
Buy Shards | 13138842 | 1089 days ago | IN | 0.00002978 ETH | 0.01123569 | ||||
Buy Shards | 13117012 | 1093 days ago | IN | 0.00018385 ETH | 0.00789601 | ||||
Buy Shards | 13116953 | 1093 days ago | IN | 0.00015314 ETH | 0.00717375 | ||||
Buy Shards | 13104367 | 1095 days ago | IN | 0.00906851 ETH | 0.00953133 | ||||
Buy Shards | 13103090 | 1095 days ago | IN | 0.00005967 ETH | 0.01219147 | ||||
Buy Shards | 13084699 | 1098 days ago | IN | 0.00059614 ETH | 0.00830106 | ||||
Buy Shards | 13079737 | 1099 days ago | IN | 0.00005955 ETH | 0.00555571 | ||||
Buy Shards | 13066523 | 1101 days ago | IN | 0.00005954 ETH | 0.00367509 | ||||
Buy Shards | 13060468 | 1102 days ago | IN | 0.00005953 ETH | 0.00420591 | ||||
Buy Shards | 13047469 | 1104 days ago | IN | 0.00005952 ETH | 0.00501364 | ||||
Supply Ether | 13032818 | 1106 days ago | IN | 0.06 ETH | 0.00309453 | ||||
Buy Shards | 13032777 | 1106 days ago | IN | 0.54382472 ETH | 0.00870858 | ||||
Withdraw Supplie... | 13032759 | 1106 days ago | IN | 0 ETH | 0.00496359 |
Latest 25 internal transactions (View All)
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Parent Transaction Hash | Block | From | To | |||
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13528334 | 1029 days ago | 0.002944 ETH | ||||
13452615 | 1041 days ago | 0 ETH | ||||
13425292 | 1045 days ago | 0.04858115 ETH | ||||
13394723 | 1050 days ago | 0.06948131 ETH | ||||
13149194 | 1088 days ago | 0.15467663 ETH | ||||
13148964 | 1088 days ago | 0.00002967 ETH | ||||
13138844 | 1089 days ago | 0.00000029 ETH | ||||
13138842 | 1089 days ago | 0.00000029 ETH | ||||
13130734 | 1091 days ago | 0.20984701 ETH | ||||
13117012 | 1093 days ago | 0.00000182 ETH | ||||
13116953 | 1093 days ago | 0.00000151 ETH | ||||
13104367 | 1095 days ago | 0.00008978 ETH | ||||
13103090 | 1095 days ago | 0.00000059 ETH | ||||
13084699 | 1098 days ago | 0.0000059 ETH | ||||
13079737 | 1099 days ago | 0.00000058 ETH | ||||
13066523 | 1101 days ago | 0.00000058 ETH | ||||
13060468 | 1102 days ago | 0.00000058 ETH | ||||
13047469 | 1104 days ago | 0.00000058 ETH | ||||
13037156 | 1105 days ago | 0.18598703 ETH | ||||
13032777 | 1106 days ago | 0.0053844 ETH | ||||
13032770 | 1106 days ago | 0.51710327 ETH | ||||
13032759 | 1106 days ago | 0.1277547 ETH | ||||
13032754 | 1106 days ago | 0.15614464 ETH | ||||
13029400 | 1106 days ago | 0.00060015 ETH | ||||
13005243 | 1110 days ago | 0.00000796 ETH |
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Minimal Proxy Contract for 0x2ad6e9542191de55b90902b394be88de002bc0d4
Contract Name:
DefaultPricingCurve
Compiler Version
v0.8.3+commit.8d00100c
Optimization Enabled:
Yes with 999 runs
Other Settings:
default evmVersion
Contract Source Code (Solidity Standard Json-Input format)
// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; import "@openzeppelin/contracts/proxy/Clones.sol"; import "@openzeppelin/contracts/utils/Address.sol"; import "./ERC20.sol"; import "../wallet/ShardedWallet.sol"; import "../governance/IGovernance.sol"; import "../interface/IERC1363Receiver.sol"; import "../interface/IERC1363Spender.sol"; contract LiquidityToken is ERC20 { address public controler; modifier onlyControler() { require(msg.sender == controler); _; } constructor() { controler = address(0xdead); } function initialize(address controler_, string memory name_, string memory symbol_) public { require(controler == address(0)); controler = controler_; _initialize(name_, symbol_); } function controllerTransfer(address sender, address recipient, uint256 amount) public onlyControler { _transfer(sender, recipient, amount); } function controllerMint(address account, uint256 amount) public onlyControler { _mint(account, amount); } function controllerBurn(address account, uint256 amount) public onlyControler { _burn(account, amount); } } // currently used by existing FixedPriceSaleModule.sol contract DefaultPricingCurve is IERC1363Spender { struct CurveCoordinates { uint256 x; uint256 k; } struct Asset { uint256 underlyingSupply; uint256 feeToNiftex; uint256 feeToArtist; } LiquidityToken immutable internal _template; // bytes32 public constant PCT_FEE_SUPPLIERS = bytes32(uint256(keccak256("PCT_FEE_SUPPLIERS")) - 1); bytes32 public constant PCT_FEE_SUPPLIERS = 0xe4f5729eb40e38b5a39dfb36d76ead9f9bc286f06852595980c5078f1af7e8c9; // bytes32 public constant PCT_FEE_ARTIST = bytes32(uint256(keccak256("PCT_FEE_ARTIST")) - 1); bytes32 public constant PCT_FEE_ARTIST = 0xdd0618e2e2a17ff193a933618181c8f8909dc169e9707cce1921893a88739ca0; // bytes32 public constant PCT_FEE_NIFTEX = bytes32(uint256(keccak256("PCT_FEE_NIFTEX")) - 1); bytes32 public constant PCT_FEE_NIFTEX = 0xcfb1dd89e6f4506eca597e7558fbcfe22dbc7e0b9f2b3956e121d0e344d6f7aa; // bytes32 public constant LIQUIDITY_TIMELOCK = bytes32(uint256(keccak256("LIQUIDITY_TIMELOCK")) - 1); bytes32 public constant LIQUIDITY_TIMELOCK = 0x4babff57ebd34f251a515a845400ed950a51f0a64c92e803a3e144fc40623fa8; // bytes32 public constant CURVE_STRETCH = bytes32(uint256(keccak256("CURVE_STRETCH")) - 1); bytes32 public constant CURVE_STRETCH = 0x93dd957c7b5128fa849cb38b3ebc75f4cb0ed832255ea21c35a997582634caa4; LiquidityToken public etherLPToken; LiquidityToken public shardLPToken; CurveCoordinates public curve; Asset internal _etherLPExtra; Asset internal _shardLPExtra; address public wallet; address public recipient; uint256 public deadline; event Initialized(address wallet); event ShardsBought(address indexed account, uint256 amount, uint256 cost); event ShardsSold(address indexed account, uint256 amount, uint256 payout); event ShardsSupplied(address indexed provider, uint256 amount); event EtherSupplied(address indexed provider, uint256 amount); event ShardsWithdrawn(address indexed provider, uint256 payout, uint256 shards, uint256 amountLPToken); event EtherWithdrawn(address indexed provider, uint256 value, uint256 payout, uint256 amountLPToken); event KUpdated(uint256 newK, uint256 newX); constructor() { _template = new LiquidityToken(); wallet = address(0xdead); } function initialize( uint256 supply, address wallet_, address recipient_, uint256 price ) public payable { require(wallet == address(0)); uint256 totalSupply = ShardedWallet(payable(wallet_)).totalSupply(); string memory name_ = ShardedWallet(payable(wallet_)).name(); string memory symbol_ = ShardedWallet(payable(wallet_)).symbol(); etherLPToken = LiquidityToken(Clones.clone(address(_template))); shardLPToken = LiquidityToken(Clones.clone(address(_template))); etherLPToken.initialize(address(this), string(abi.encodePacked(name_, "-EtherLP")), string(abi.encodePacked(symbol_, "-ELP"))); shardLPToken.initialize(address(this), string(abi.encodePacked(name_, "-ShardLP")), string(abi.encodePacked(symbol_, "-SLP"))); wallet = wallet_; recipient = recipient_; deadline = block.timestamp + ShardedWallet(payable(wallet_)).governance().getConfig(wallet_, LIQUIDITY_TIMELOCK); emit Initialized(wallet_); // transfer assets if (supply > 0) { require(ShardedWallet(payable(wallet_)).transferFrom(msg.sender, address(this), supply)); } { // setup curve uint256 decimals = ShardedWallet(payable(wallet_)).decimals(); IGovernance governance = ShardedWallet(payable(wallet_)).governance(); uint256 curveStretch = governance.getConfig(wallet_, CURVE_STRETCH); curveStretch = Math.min(Math.max(1, curveStretch), 10); // curveStretch ranges from 1 to 10. curve.k = totalSupply * totalSupply * price / 10**decimals * curveStretch * curveStretch / 100; curve.x = totalSupply * curveStretch / 10; } address mintTo = deadline == block.timestamp ? recipient_ : address(this); // mint liquidity etherLPToken.controllerMint(mintTo, msg.value); shardLPToken.controllerMint(mintTo, supply); _etherLPExtra.underlyingSupply = msg.value; _shardLPExtra.underlyingSupply = supply; emit EtherSupplied(mintTo, msg.value); emit ShardsSupplied(mintTo, supply); } function buyShards(uint256 amount, uint256 maxCost) public payable { uint256 cost = _buyShards(msg.sender, amount, maxCost); require(cost <= msg.value); if (msg.value > cost) { Address.sendValue(payable(msg.sender), msg.value - cost); } } function sellShards(uint256 amount, uint256 minPayout) public { require(ShardedWallet(payable(wallet)).transferFrom(msg.sender, address(this), amount)); _sellShards(msg.sender, amount, minPayout); } function supplyEther() public payable { _supplyEther(msg.sender, msg.value); } function supplyShards(uint256 amount) public { require(ShardedWallet(payable(wallet)).transferFrom(msg.sender, address(this), amount)); _supplyShards(msg.sender, amount); } function onApprovalReceived(address owner, uint256 amount, bytes calldata data) public override returns (bytes4) { require(msg.sender == wallet); require(ShardedWallet(payable(wallet)).transferFrom(owner, address(this), amount)); bytes4 selector = abi.decode(data, (bytes4)); if (selector == this.sellShards.selector) { (,uint256 minPayout) = abi.decode(data, (bytes4, uint256)); _sellShards(owner, amount, minPayout); } else if (selector == this.supplyShards.selector) { _supplyShards(owner, amount); } else { revert("invalid selector in onApprovalReceived data"); } return this.onApprovalReceived.selector; } function _buyShards(address buyer, uint256 amount, uint256 maxCost) internal returns (uint256) { IGovernance governance = ShardedWallet(payable(wallet)).governance(); address owner = ShardedWallet(payable(wallet)).owner(); address artist = ShardedWallet(payable(wallet)).artistWallet(); // pause if someone else reclaimed the ownership of shardedWallet require(owner == address(0) || governance.isModule(wallet, owner)); // compute fees uint256[3] memory fees; fees[0] = governance.getConfig(wallet, PCT_FEE_SUPPLIERS); fees[1] = governance.getConfig(wallet, PCT_FEE_NIFTEX); fees[2] = artist == address(0) ? 0 : governance.getConfig(wallet, PCT_FEE_ARTIST); uint256 amountWithFee = amount * (10**18 + fees[0] + fees[1] + fees[2]) / 10**18; // check curve update uint256 newX = curve.x - amountWithFee; uint256 newY = curve.k / newX; require(newX > 0 && newY > 0); // check cost uint256 cost = newY - curve.k / curve.x; require(cost <= maxCost); // consistency check require(ShardedWallet(payable(wallet)).balanceOf(address(this)) - _shardLPExtra.feeToNiftex - _shardLPExtra.feeToArtist >= amount * (10**18 + fees[1] + fees[2]) / 10**18); // update curve curve.x = curve.x - amount * (10**18 + fees[1] + fees[2]) / 10**18; // update LP supply _shardLPExtra.underlyingSupply += amount * fees[0] / 10**18; _shardLPExtra.feeToNiftex += amount * fees[1] / 10**18; _shardLPExtra.feeToArtist += amount * fees[2] / 10**18; // transfer ShardedWallet(payable(wallet)).transfer(buyer, amount); emit ShardsBought(buyer, amount, cost); return cost; } function _sellShards(address seller, uint256 amount, uint256 minPayout) internal returns (uint256) { IGovernance governance = ShardedWallet(payable(wallet)).governance(); address owner = ShardedWallet(payable(wallet)).owner(); address artist = ShardedWallet(payable(wallet)).artistWallet(); // pause if someone else reclaimed the ownership of shardedWallet require(owner == address(0) || governance.isModule(wallet, owner)); // compute fees uint256[3] memory fees; fees[0] = governance.getConfig(wallet, PCT_FEE_SUPPLIERS); fees[1] = governance.getConfig(wallet, PCT_FEE_NIFTEX); fees[2] = artist == address(0) ? 0 : governance.getConfig(wallet, PCT_FEE_ARTIST); uint256 newX = curve.x + amount; uint256 newY = curve.k / newX; require(newX > 0 && newY > 0); // check payout uint256 payout = curve.k / curve.x - newY; require(payout <= address(this).balance - _etherLPExtra.feeToNiftex - _etherLPExtra.feeToArtist); uint256 value = payout * (10**18 - fees[0] - fees[1] - fees[2]) / 10**18; require(value >= minPayout); // update curve curve.x = newX; // update LP supply _etherLPExtra.underlyingSupply += payout * fees[0] / 10**18; _etherLPExtra.feeToNiftex += payout * fees[1] / 10**18; _etherLPExtra.feeToArtist += payout * fees[2] / 10**18; // transfer Address.sendValue(payable(seller), value); emit ShardsSold(seller, amount, value); return value; } function _supplyEther(address supplier, uint256 amount) internal { etherLPToken.controllerMint(supplier, calcNewEthLPTokensToIssue(amount)); _etherLPExtra.underlyingSupply += amount; emit EtherSupplied(supplier, amount); } function _supplyShards(address supplier, uint256 amount) internal { shardLPToken.controllerMint(supplier, calcNewShardLPTokensToIssue(amount)); _shardLPExtra.underlyingSupply += amount; emit ShardsSupplied(supplier, amount); } function calcNewShardLPTokensToIssue(uint256 amount) public view returns (uint256) { uint256 pool = _shardLPExtra.underlyingSupply; if (pool == 0) { return amount; } uint256 proportion = amount * 10**18 / (pool + amount); return proportion * shardLPToken.totalSupply() / (10**18 - proportion); } function calcNewEthLPTokensToIssue(uint256 amount) public view returns (uint256) { uint256 pool = _etherLPExtra.underlyingSupply; if (pool == 0) { return amount; } uint256 proportion = amount * 10**18 / (pool + amount); return proportion * etherLPToken.totalSupply() / (10**18 - proportion); } function calcShardsForEthSuppliers() public view returns (uint256) { uint256 balance = ShardedWallet(payable(wallet)).balanceOf(address(this)) - _shardLPExtra.feeToNiftex - _shardLPExtra.feeToArtist; return balance < _shardLPExtra.underlyingSupply ? 0 : balance - _shardLPExtra.underlyingSupply; } function calcEthForShardSuppliers() public view returns (uint256) { uint256 balance = address(this).balance - _etherLPExtra.feeToNiftex - _etherLPExtra.feeToArtist; return balance < _etherLPExtra.underlyingSupply ? 0 : balance - _etherLPExtra.underlyingSupply; } function withdrawSuppliedEther(uint256 amount) external returns (uint256, uint256) { require(amount > 0); uint256 etherLPTokenSupply = etherLPToken.totalSupply(); uint256 balance = address(this).balance - _etherLPExtra.feeToNiftex - _etherLPExtra.feeToArtist; uint256 value = (balance <= _etherLPExtra.underlyingSupply) ? balance * amount / etherLPTokenSupply : _etherLPExtra.underlyingSupply * amount / etherLPTokenSupply; uint256 payout = calcShardsForEthSuppliers() * amount / etherLPTokenSupply; // update balances _etherLPExtra.underlyingSupply *= etherLPTokenSupply - amount; _etherLPExtra.underlyingSupply /= etherLPTokenSupply; etherLPToken.controllerBurn(msg.sender, amount); // transfer Address.sendValue(payable(msg.sender), value); if (payout > 0) { ShardedWallet(payable(wallet)).transfer(msg.sender, payout); } emit EtherWithdrawn(msg.sender, value, payout, amount); return (value, payout); } function withdrawSuppliedShards(uint256 amount) external returns (uint256, uint256) { require(amount > 0); uint256 shardLPTokenSupply = shardLPToken.totalSupply(); uint256 balance = ShardedWallet(payable(wallet)).balanceOf(address(this)) - _shardLPExtra.feeToNiftex - _shardLPExtra.feeToArtist; uint256 shards = (balance <= _shardLPExtra.underlyingSupply) ? balance * amount / shardLPTokenSupply : _shardLPExtra.underlyingSupply * amount / shardLPTokenSupply; uint256 payout = calcEthForShardSuppliers() * amount / shardLPTokenSupply; // update balances _shardLPExtra.underlyingSupply *= shardLPTokenSupply - amount; _shardLPExtra.underlyingSupply /= shardLPTokenSupply; shardLPToken.controllerBurn(msg.sender, amount); // transfer ShardedWallet(payable(wallet)).transfer(msg.sender, shards); if (payout > 0) { Address.sendValue(payable(msg.sender), payout); } emit ShardsWithdrawn(msg.sender, payout, shards, amount); return (payout, shards); } function withdrawNiftexOrArtistFees(address to) public { uint256 etherFees = 0; uint256 shardFees = 0; if (msg.sender == ShardedWallet(payable(wallet)).artistWallet()) { etherFees += _etherLPExtra.feeToArtist; shardFees += _shardLPExtra.feeToArtist; delete _etherLPExtra.feeToArtist; delete _shardLPExtra.feeToArtist; } if (msg.sender == ShardedWallet(payable(wallet)).governance().getNiftexWallet()) { etherFees += _etherLPExtra.feeToNiftex; shardFees += _shardLPExtra.feeToNiftex; delete _etherLPExtra.feeToNiftex; delete _shardLPExtra.feeToNiftex; } Address.sendValue(payable(to), etherFees); ShardedWallet(payable(wallet)).transfer(to, shardFees); } function transferTimelockLiquidity() public { require(deadline < block.timestamp); etherLPToken.controllerTransfer(address(this), recipient, getEthLPTokens(address(this))); shardLPToken.controllerTransfer(address(this), recipient, getShardLPTokens(address(this))); } // babylonian method (https://en.wikipedia.org/wiki/Methods_of_computing_square_roots#Babylonian_method) function sqrt(uint y) internal pure returns (uint z) { if (y > 3) { z = y; uint x = y / 2 + 1; while (x < z) { z = x; x = (y / x + x) / 2; } } else if (y != 0) { z = 1; } } function updateK(uint256 newK_) public { require(msg.sender == wallet); curve.x = curve.x * sqrt(newK_ * 10**12 / curve.k) / 10**6; curve.k = newK_; assert(curve.k > 0); assert(curve.x > 0); emit KUpdated(curve.k, curve.x); } function updateKAndX(uint256 newK_, uint256 newX_) public { ShardedWallet sw = ShardedWallet(payable(wallet)); uint256 effectiveShardBal = sw.balanceOf(msg.sender) + shardLPToken.balanceOf(msg.sender) * sw.balanceOf(address(this)) / shardLPToken.totalSupply(); require(effectiveShardBal == sw.totalSupply()); curve.x = newX_; curve.k = newK_; assert(curve.k > 0); assert(curve.x > 0); emit KUpdated(curve.k, curve.x); } function getEthLPTokens(address owner) public view returns (uint256) { return etherLPToken.balanceOf(owner); } function getShardLPTokens(address owner) public view returns (uint256) { return shardLPToken.balanceOf(owner); } function transferEthLPTokens(address to, uint256 amount) public { etherLPToken.controllerTransfer(msg.sender, to, amount); } function transferShardLPTokens(address to, uint256 amount) public { shardLPToken.controllerTransfer(msg.sender, to, amount); } function getCurrentPrice() external view returns (uint256) { return curve.k * 10**18 / curve.x / curve.x; } function getEthSuppliers() external view returns (uint256, uint256, uint256, uint256) { return (_etherLPExtra.underlyingSupply, etherLPToken.totalSupply(), _etherLPExtra.feeToNiftex, _etherLPExtra.feeToArtist); } function getShardSuppliers() external view returns (uint256, uint256, uint256, uint256) { return (_shardLPExtra.underlyingSupply, shardLPToken.totalSupply(), _shardLPExtra.feeToNiftex, _shardLPExtra.feeToArtist); } }
// SPDX-License-Identifier: MIT 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) { // solhint-disable-next-line no-inline-assembly 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) { // solhint-disable-next-line no-inline-assembly 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) { // solhint-disable-next-line no-inline-assembly 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 pragma solidity ^0.8.0; /** * @dev Collection of functions related to the address type */ library Address { /** * @dev Returns true if `account` is a contract. * * [IMPORTANT] * ==== * It is unsafe to assume that an address for which this function returns * false is an externally-owned account (EOA) and not a contract. * * Among others, `isContract` will return false for the following * types of addresses: * * - an externally-owned account * - a contract in construction * - an address where a contract will be created * - an address where a contract lived, but was destroyed * ==== */ 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; // solhint-disable-next-line no-inline-assembly 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"); // solhint-disable-next-line avoid-low-level-calls, avoid-call-value (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"); // solhint-disable-next-line avoid-low-level-calls (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"); // solhint-disable-next-line avoid-low-level-calls (bool success, bytes memory returndata) = target.staticcall(data); return _verifyCallResult(success, returndata, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a delegate call. * * _Available since v3.4._ */ function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) { return functionDelegateCall(target, data, "Address: low-level delegate call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`], * but performing a delegate call. * * _Available since v3.4._ */ function functionDelegateCall(address target, bytes memory data, string memory errorMessage) internal returns (bytes memory) { require(isContract(target), "Address: delegate call to non-contract"); // solhint-disable-next-line avoid-low-level-calls (bool success, bytes memory returndata) = target.delegatecall(data); return _verifyCallResult(success, returndata, errorMessage); } function _verifyCallResult(bool success, bytes memory returndata, string memory errorMessage) private 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 // solhint-disable-next-line no-inline-assembly assembly { let returndata_size := mload(returndata) revert(add(32, returndata), returndata_size) } } else { revert(errorMessage); } } } }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; import "@openzeppelin/contracts/utils/Context.sol"; import "@openzeppelin/contracts/token/ERC20/IERC20.sol"; /** * @dev Implementation of the {IERC20} interface. * * This implementation is agnostic to the way tokens are created. This means * that a supply mechanism has to be added in a derived contract using {_mint}. * For a generic mechanism see {ERC20PresetMinterPauser}. * * TIP: For a detailed writeup see our guide * https://forum.zeppelin.solutions/t/how-to-implement-erc20-supply-mechanisms/226[How * to implement supply mechanisms]. * * We have followed general OpenZeppelin guidelines: functions revert instead * of returning `false` on failure. This behavior is nonetheless conventional * and does not conflict with the expectations of ERC20 applications. * * Additionally, an {Approval} event is emitted on calls to {transferFrom}. * This allows applications to reconstruct the allowance for all accounts just * by listening to said events. Other implementations of the EIP may not emit * these events, as it isn't required by the specification. * * Finally, the non-standard {decreaseAllowance} and {increaseAllowance} * functions have been added to mitigate the well-known issues around setting * allowances. See {IERC20-approve}. */ contract ERC20 is Context, IERC20 { mapping (address => uint256) private _balances; mapping (address => mapping (address => uint256)) private _allowances; uint256 private _totalSupply; string private _name; string private _symbol; function _initialize(string memory name_, string memory symbol_) internal virtual { _name = name_; _symbol = symbol_; } /** * @dev Returns the name of the token. */ function name() public view virtual returns (string memory) { return _name; } /** * @dev Returns the symbol of the token, usually a shorter version of the * name. */ function symbol() public view virtual returns (string memory) { return _symbol; } /** * @dev Returns the number of decimals used to get its user representation. * For example, if `decimals` equals `2`, a balance of `505` tokens should * be displayed to a user as `5,05` (`505 / 10 ** 2`). * * Tokens usually opt for a value of 18, imitating the relationship between * Ether and Wei. This is the value {ERC20} uses, unless this function is * overloaded; * * NOTE: This information is only used for _display_ purposes: it in * no way affects any of the arithmetic of the contract, including * {IERC20-balanceOf} and {IERC20-transfer}. */ function decimals() public view virtual returns (uint8) { return 18; } /** * @dev See {IERC20-totalSupply}. */ function totalSupply() public view virtual override returns (uint256) { return _totalSupply; } /** * @dev See {IERC20-balanceOf}. */ function balanceOf(address account) public view virtual override returns (uint256) { return _balances[account]; } /** * @dev See {IERC20-transfer}. * * Requirements: * * - `recipient` cannot be the zero address. * - the caller must have a balance of at least `amount`. */ function transfer(address recipient, uint256 amount) public virtual override returns (bool) { _transfer(_msgSender(), recipient, amount); return true; } /** * @dev See {IERC20-allowance}. */ function allowance(address owner, address spender) public view virtual override returns (uint256) { return _allowances[owner][spender]; } /** * @dev See {IERC20-approve}. * * Requirements: * * - `spender` cannot be the zero address. */ function approve(address spender, uint256 amount) public virtual override returns (bool) { _approve(_msgSender(), spender, amount); return true; } /** * @dev See {IERC20-transferFrom}. * * Emits an {Approval} event indicating the updated allowance. This is not * required by the EIP. See the note at the beginning of {ERC20}. * * Requirements: * * - `sender` and `recipient` cannot be the zero address. * - `sender` must have a balance of at least `amount`. * - the caller must have allowance for ``sender``'s tokens of at least * `amount`. */ function transferFrom(address sender, address recipient, uint256 amount) public virtual override returns (bool) { _transfer(sender, recipient, amount); uint256 currentAllowance = _allowances[sender][_msgSender()]; require(currentAllowance >= amount, "ERC20: transfer amount exceeds allowance"); _approve(sender, _msgSender(), currentAllowance - amount); return true; } /** * @dev Atomically increases the allowance granted to `spender` by the caller. * * This is an alternative to {approve} that can be used as a mitigation for * problems described in {IERC20-approve}. * * Emits an {Approval} event indicating the updated allowance. * * Requirements: * * - `spender` cannot be the zero address. */ function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) { _approve(_msgSender(), spender, _allowances[_msgSender()][spender] + addedValue); return true; } /** * @dev Atomically decreases the allowance granted to `spender` by the caller. * * This is an alternative to {approve} that can be used as a mitigation for * problems described in {IERC20-approve}. * * Emits an {Approval} event indicating the updated allowance. * * Requirements: * * - `spender` cannot be the zero address. * - `spender` must have allowance for the caller of at least * `subtractedValue`. */ function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) { uint256 currentAllowance = _allowances[_msgSender()][spender]; require(currentAllowance >= subtractedValue, "ERC20: decreased allowance below zero"); _approve(_msgSender(), spender, currentAllowance - subtractedValue); return true; } /** * @dev Destroys `amount` tokens from the caller. * * See {ERC20-_burn}. */ function burn(uint256 amount) public virtual { _burn(_msgSender(), amount); } /** * @dev Destroys `amount` tokens from `account`, deducting from the caller's * allowance. * * See {ERC20-_burn} and {ERC20-allowance}. * * Requirements: * * - the caller must have allowance for ``accounts``'s tokens of at least * `amount`. */ function burnFrom(address account, uint256 amount) public virtual { uint256 currentAllowance = allowance(account, _msgSender()); require(currentAllowance >= amount, "ERC20: burn amount exceeds allowance"); _approve(account, _msgSender(), currentAllowance - amount); _burn(account, amount); } /** * @dev Moves tokens `amount` from `sender` to `recipient`. * * This is internal function is equivalent to {transfer}, and can be used to * e.g. implement automatic token fees, slashing mechanisms, etc. * * Emits a {Transfer} event. * * Requirements: * * - `sender` cannot be the zero address. * - `recipient` cannot be the zero address. * - `sender` must have a balance of at least `amount`. */ function _transfer(address sender, address recipient, uint256 amount) internal virtual { require(sender != address(0), "ERC20: transfer from the zero address"); require(recipient != address(0), "ERC20: transfer to the zero address"); _beforeTokenTransfer(sender, recipient, amount); uint256 senderBalance = _balances[sender]; require(senderBalance >= amount, "ERC20: transfer amount exceeds balance"); _balances[sender] = senderBalance - amount; _balances[recipient] += amount; emit Transfer(sender, recipient, amount); } /** @dev Creates `amount` tokens and assigns them to `account`, increasing * the total supply. * * Emits a {Transfer} event with `from` set to the zero address. * * Requirements: * * - `to` cannot be the zero address. */ function _mint(address account, uint256 amount) internal virtual { require(account != address(0), "ERC20: mint to the zero address"); _beforeTokenTransfer(address(0), account, amount); _totalSupply += amount; _balances[account] += amount; emit Transfer(address(0), account, amount); } /** * @dev Destroys `amount` tokens from `account`, reducing the * total supply. * * Emits a {Transfer} event with `to` set to the zero address. * * Requirements: * * - `account` cannot be the zero address. * - `account` must have at least `amount` tokens. */ function _burn(address account, uint256 amount) internal virtual { require(account != address(0), "ERC20: burn from the zero address"); _beforeTokenTransfer(account, address(0), amount); uint256 accountBalance = _balances[account]; require(accountBalance >= amount, "ERC20: burn amount exceeds balance"); _balances[account] = accountBalance - amount; _totalSupply -= amount; emit Transfer(account, address(0), amount); } /** * @dev Sets `amount` as the allowance of `spender` over the `owner` s tokens. * * This internal function is equivalent to `approve`, and can be used to * e.g. set automatic allowances for certain subsystems, etc. * * Emits an {Approval} event. * * Requirements: * * - `owner` cannot be the zero address. * - `spender` cannot be the zero address. */ function _approve(address owner, address spender, uint256 amount) internal virtual { require(owner != address(0), "ERC20: approve from the zero address"); require(spender != address(0), "ERC20: approve to the zero address"); _allowances[owner][spender] = amount; emit Approval(owner, spender, amount); } /** * @dev Hook that is called before any transfer of tokens. This includes * minting and burning. * * Calling conditions: * * - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens * will be to transferred to `to`. * - when `from` is zero, `amount` tokens will be minted for `to`. * - when `to` is zero, `amount` of ``from``'s tokens will be burned. * - `from` and `to` are never both zero. * * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks]. */ function _beforeTokenTransfer(address from, address to, uint256 amount) internal virtual { } }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; import "@openzeppelin/contracts/utils/Address.sol"; import "@openzeppelin/contracts/utils/math/Math.sol"; import "../governance/IGovernance.sol"; import "../initializable/Ownable.sol"; import "../initializable/ERC20.sol"; import "../initializable/ERC1363.sol"; contract ShardedWallet is Ownable, ERC20, ERC1363Approve { // bytes32 public constant ALLOW_GOVERNANCE_UPGRADE = bytes32(uint256(keccak256("ALLOW_GOVERNANCE_UPGRADE")) - 1); bytes32 public constant ALLOW_GOVERNANCE_UPGRADE = 0xedde61aea0459bc05d70dd3441790ccfb6c17980a380201b00eca6f9ef50452a; IGovernance public governance; address public artistWallet; event Received(address indexed sender, uint256 value, bytes data); event Execute(address indexed to, uint256 value, bytes data); event ModuleExecute(address indexed module, address indexed to, uint256 value, bytes data); event GovernanceUpdated(address indexed oldGovernance, address indexed newGovernance); event ArtistUpdated(address indexed oldArtist, address indexed newArtist); modifier onlyModule() { require(_isModule(msg.sender), "Access restricted to modules"); _; } /************************************************************************* * Contructor and fallbacks * *************************************************************************/ constructor() { governance = IGovernance(address(0xdead)); } receive() external payable { emit Received(msg.sender, msg.value, bytes("")); } fallback() external payable { address module = governance.getModule(address(this), msg.sig); if (module != address(0) && _isModule(module)) { (bool success, /*bytes memory returndata*/) = module.staticcall(msg.data); // returning bytes in fallback is not supported until solidity 0.8.0 // solhint-disable-next-line no-inline-assembly assembly { returndatacopy(0, 0, returndatasize()) switch success case 0 { revert(0, returndatasize()) } default { return (0, returndatasize()) } } } else { emit Received(msg.sender, msg.value, msg.data); } } /************************************************************************* * Initialization * *************************************************************************/ function initialize( address governance_, address minter_, string calldata name_, string calldata symbol_, address artistWallet_ ) external { require(address(governance) == address(0)); governance = IGovernance(governance_); Ownable._setOwner(minter_); ERC20._initialize(name_, symbol_); artistWallet = artistWallet_; emit GovernanceUpdated(address(0), governance_); } function _isModule(address module) internal view returns (bool) { return governance.isModule(address(this), module); } /************************************************************************* * Owner interactions * *************************************************************************/ function execute(address to, uint256 value, bytes calldata data) external onlyOwner() { Address.functionCallWithValue(to, data, value); emit Execute(to, value, data); } function retrieve(address newOwner) external { ERC20._burn(msg.sender, Math.max(ERC20.totalSupply(), 1)); Ownable._setOwner(newOwner); } /************************************************************************* * Module interactions * *************************************************************************/ function moduleExecute(address to, uint256 value, bytes calldata data) external onlyModule() { if (Address.isContract(to)) { Address.functionCallWithValue(to, data, value); } else { Address.sendValue(payable(to), value); } emit ModuleExecute(msg.sender, to, value, data); } function moduleMint(address to, uint256 value) external onlyModule() { ERC20._mint(to, value); } function moduleBurn(address from, uint256 value) external onlyModule() { ERC20._burn(from, value); } function moduleTransfer(address from, address to, uint256 value) external onlyModule() { ERC20._transfer(from, to, value); } function moduleTransferOwnership(address to) external onlyModule() { Ownable._setOwner(to); } function updateGovernance(address newGovernance) external onlyModule() { emit GovernanceUpdated(address(governance), newGovernance); require(governance.getConfig(address(this), ALLOW_GOVERNANCE_UPGRADE) > 0); require(Address.isContract(newGovernance)); governance = IGovernance(newGovernance); } function updateArtistWallet(address newArtistWallet) external onlyModule() { emit ArtistUpdated(artistWallet, newArtistWallet); artistWallet = newArtistWallet; } }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; interface IGovernance { function isModule(address, address) external view returns (bool); function isAuthorized(address, address) external view returns (bool); function getModule(address, bytes4) external view returns (address); function getConfig(address, bytes32) external view returns (uint256); function getNiftexWallet() external view returns (address); }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; /** * @title ERC1363Receiver interface * @dev Interface for any contract that wants to support `transferAndCall` or `transferFromAndCall` * from ERC1363 token contracts. */ interface IERC1363Receiver { /* * Note: the ERC-165 identifier for this interface is 0x88a7ca5c. * 0x88a7ca5c === bytes4(keccak256("onTransferReceived(address,address,uint256,bytes)")) */ /** * @notice Handle the receipt of ERC1363 tokens * @dev Any ERC1363 smart contract calls this function on the recipient * after a `transfer` or a `transferFrom`. This function MAY throw to revert and reject the * transfer. Return of other than the magic value MUST result in the * transaction being reverted. * Note: the token contract address is always the message sender. * @param operator address The address which called `transferAndCall` or `transferFromAndCall` function * @param from address The address which are token transferred from * @param value uint256 The amount of tokens transferred * @param data bytes Additional data with no specified format * @return `bytes4(keccak256("onTransferReceived(address,address,uint256,bytes)"))` * unless throwing */ function onTransferReceived(address operator, address from, uint256 value, bytes calldata data) external returns (bytes4); }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; /** * @title ERC1363Spender interface * @dev Interface for any contract that wants to support `approveAndCall` * from ERC1363 token contracts. */ interface IERC1363Spender { /* * Note: the ERC-165 identifier for this interface is 0.8.04a2d0. * 0.8.04a2d0 === bytes4(keccak256("onApprovalReceived(address,uint256,bytes)")) */ /** * @notice Handle the approval of ERC1363 tokens * @dev Any ERC1363 smart contract calls this function on the recipient * after an `approve`. This function MAY throw to revert and reject the * approval. Return of other than the magic value MUST result in the * transaction being reverted. * Note: the token contract address is always the message sender. * @param owner address The address which called `approveAndCall` function * @param value uint256 The amount of tokens to be spent * @param data bytes Additional data with no specified format * @return `bytes4(keccak256("onApprovalReceived(address,uint256,bytes)"))` * unless throwing */ function onApprovalReceived(address owner, uint256 value, bytes calldata data) external returns (bytes4); }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; /* * @dev Provides information about the current execution context, including the * sender of the transaction and its data. While these are generally available * via msg.sender and msg.data, they should not be accessed in such a direct * manner, since when dealing with meta-transactions the account sending and * paying for execution may not be the actual sender (as far as an application * is concerned). * * This contract is only required for intermediate, library-like contracts. */ abstract contract Context { function _msgSender() internal view virtual returns (address) { return msg.sender; } function _msgData() internal view virtual returns (bytes calldata) { this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691 return msg.data; } }
// SPDX-License-Identifier: MIT 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 ^0.8.0; /** * @dev Standard math utilities missing in the Solidity language. */ library Math { /** * @dev Returns the largest of two numbers. */ function max(uint256 a, uint256 b) internal pure returns (uint256) { return a >= b ? a : b; } /** * @dev Returns the smallest of two numbers. */ function min(uint256 a, uint256 b) internal pure returns (uint256) { return a < b ? a : b; } /** * @dev Returns the average of two numbers. The result is rounded towards * zero. */ function average(uint256 a, uint256 b) internal pure returns (uint256) { // (a + b) / 2 can overflow, so we distribute return (a / 2) + (b / 2) + ((a % 2 + b % 2) / 2); } }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; import "@openzeppelin/contracts/utils/Context.sol"; /** * @dev Contract module which provides a basic access control mechanism, where * there is an account (an owner) that can be granted exclusive access to * specific functions. * * By default, the owner account will be the one that deploys the contract. This * can later be changed with {transferOwnership}. * * This module is used through inheritance. It will make available the modifier * `onlyOwner`, which can be applied to your functions to restrict their use to * the owner. */ abstract contract Ownable is Context { address private _owner; event OwnershipTransferred(address indexed previousOwner, address indexed newOwner); /** * @dev Initializes the contract setting the deployer as the initial owner. */ function _setOwner(address owner_) internal { emit OwnershipTransferred(_owner, owner_); _owner = owner_; } /** * @dev Returns the address of the current owner. */ function owner() public view returns (address) { return _owner; } /** * @dev Throws if called by any account other than the owner. */ modifier onlyOwner() { require(_owner == _msgSender(), "Ownable: caller is not the owner"); _; } /** * @dev Leaves the contract without owner. It will not be possible to call * `onlyOwner` functions anymore. Can only be called by the current owner. * * NOTE: Renouncing ownership will leave the contract without an owner, * thereby removing any functionality that is only available to the owner. */ function renounceOwnership() public virtual onlyOwner { _setOwner(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"); _setOwner(newOwner); } }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; import "./ERC20.sol"; import "../interface/IERC1363.sol"; import "../interface/IERC1363Receiver.sol"; import "../interface/IERC1363Spender.sol"; abstract contract ERC1363Transfer is ERC20, IERC1363Transfer { function transferAndCall(address to, uint256 value) public override returns (bool) { return transferAndCall(to, value, bytes("")); } function transferAndCall(address to, uint256 value, bytes memory data) public override returns (bool) { require(transfer(to, value)); try IERC1363Receiver(to).onTransferReceived(_msgSender(), _msgSender(), value, data) returns (bytes4 selector) { require(selector == IERC1363Receiver(to).onTransferReceived.selector, "ERC1363: onTransferReceived invalid result"); } catch Error(string memory reason) { revert(reason); } catch { revert("ERC1363: onTransferReceived reverted without reason"); } return true; } function transferFromAndCall(address from, address to, uint256 value) public override returns (bool) { return transferFromAndCall(from, to, value, bytes("")); } function transferFromAndCall(address from, address to, uint256 value, bytes memory data) public override returns (bool) { require(transferFrom(from, to, value)); try IERC1363Receiver(to).onTransferReceived(_msgSender(), from, value, data) returns (bytes4 selector) { require(selector == IERC1363Receiver(to).onTransferReceived.selector, "ERC1363: onTransferReceived invalid result"); } catch Error(string memory reason) { revert(reason); } catch { revert("ERC1363: onTransferReceived reverted without reason"); } return true; } } abstract contract ERC1363Approve is ERC20, IERC1363Approve { function approveAndCall(address spender, uint256 value) public override returns (bool) { return approveAndCall(spender, value, bytes("")); } function approveAndCall(address spender, uint256 value, bytes memory data) public override returns (bool) { require(approve(spender, value)); try IERC1363Spender(spender).onApprovalReceived(_msgSender(), value, data) returns (bytes4 selector) { require(selector == IERC1363Spender(spender).onApprovalReceived.selector, "ERC1363: onApprovalReceived invalid result"); } catch Error(string memory reason) { revert(reason); } catch { revert("ERC1363: onApprovalReceived reverted without reason"); } return true; } } abstract contract ERC1363 is ERC1363Transfer, ERC1363Approve {}
// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; interface IERC1363Transfer { /* * Note: the ERC-165 identifier for this interface is 0x4bbee2df. * 0x4bbee2df === * bytes4(keccak256('transferAndCall(address,uint256)')) ^ * bytes4(keccak256('transferAndCall(address,uint256,bytes)')) ^ * bytes4(keccak256('transferFromAndCall(address,address,uint256)')) ^ * bytes4(keccak256('transferFromAndCall(address,address,uint256,bytes)')) */ /** * @notice Transfer tokens from `msg.sender` to another address and then call `onTransferReceived` on receiver * @param to address The address which you want to transfer to * @param value uint256 The amount of tokens to be transferred * @return true unless throwing */ function transferAndCall(address to, uint256 value) external returns (bool); /** * @notice Transfer tokens from `msg.sender` to another address and then call `onTransferReceived` on receiver * @param to address The address which you want to transfer to * @param value uint256 The amount of tokens to be transferred * @param data bytes Additional data with no specified format, sent in call to `to` * @return true unless throwing */ function transferAndCall(address to, uint256 value, bytes calldata data) external returns (bool); /** * @notice Transfer tokens from one address to another and then call `onTransferReceived` on receiver * @param from address The address which you want to send tokens from * @param to address The address which you want to transfer to * @param value uint256 The amount of tokens to be transferred * @return true unless throwing */ function transferFromAndCall(address from, address to, uint256 value) external returns (bool); /** * @notice Transfer tokens from one address to another and then call `onTransferReceived` on receiver * @param from address The address which you want to send tokens from * @param to address The address which you want to transfer to * @param value uint256 The amount of tokens to be transferred * @param data bytes Additional data with no specified format, sent in call to `to` * @return true unless throwing */ function transferFromAndCall(address from, address to, uint256 value, bytes calldata data) external returns (bool); } interface IERC1363Approve { /* * Note: the ERC-165 identifier for this interface is 0xfb9ec8ce. * 0xfb9ec8ce === * bytes4(keccak256('approveAndCall(address,uint256)')) ^ * bytes4(keccak256('approveAndCall(address,uint256,bytes)')) */ /** * @notice Approve the passed address to spend the specified amount of tokens on behalf of msg.sender * and then call `onApprovalReceived` on spender. * @param spender address The address which will spend the funds * @param value uint256 The amount of tokens to be spent */ function approveAndCall(address spender, uint256 value) external returns (bool); /** * @notice Approve the passed address to spend the specified amount of tokens on behalf of msg.sender * and then call `onApprovalReceived` on spender. * @param spender address The address which will spend the funds * @param value uint256 The amount of tokens to be spent * @param data bytes Additional data with no specified format, sent in call to `spender` */ function approveAndCall(address spender, uint256 value, bytes calldata data) external returns (bool); } interface IERC1363 is IERC1363Transfer, IERC1363Approve { }
{ "optimizer": { "enabled": true, "runs": 999 }, "outputSelection": { "*": { "*": [ "evm.bytecode", "evm.deployedBytecode", "abi" ] } }, "libraries": {} }
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Multichain Portfolio | 26 Chains
Chain | Token | Portfolio % | Price | Amount | Value |
---|---|---|---|---|---|
ETH | 100.00% | $2,740.4 | 0.00340239 | $9.32 |
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A contract address hosts a smart contract, which is a set of code stored on the blockchain that runs when predetermined conditions are met. Learn more about addresses in our Knowledge Base.