Contract 0x8f77e94eb5e74edb1ba8461a119a245ba5639b26

Contract Overview

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0 BNB
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0x5b8e4e0a5853d65863ccdc44c95f00d2f2a7425662d242fa789fe778cdb27ce1Set Fee To68248992021-03-05 15:07:36320 days 7 hrs ago0x10bcfdad432a3faeb208b066d88f33493ce8fa29 IN  0x8f77e94eb5e74edb1ba8461a119a245ba5639b260 BNB0.00086866
0x2c5c1b67f89d88e36d0ac6273c70320fe22dc22de1fbe7425e3ea80d62f7b62fAdd Liquidity64260172021-02-19 14:45:50334 days 7 hrs ago0xaa50da3bd10d140536dd96136a4781274c09561b IN  0x8f77e94eb5e74edb1ba8461a119a245ba5639b260 BNB0.00046762
0x739aa65629dc4972fee853f798175ce740a12a5e3a31e3a0eb2ee64d099fa726Add Liquidity64259802021-02-19 14:43:59334 days 7 hrs ago0xaa50da3bd10d140536dd96136a4781274c09561b IN  0x8f77e94eb5e74edb1ba8461a119a245ba5639b260 BNB0.00023357
0x1443348a614b7233356efcf770ba15c0103929d1fc1d43ef744accba01797bafAdd Liquidity64258172021-02-19 14:35:50334 days 8 hrs ago0xaa50da3bd10d140536dd96136a4781274c09561b IN  0x8f77e94eb5e74edb1ba8461a119a245ba5639b260 BNB0.00023369
0xaab72882455d3b7b48225f5e33b8022ef5eca4a90000c369bcb491280875be65Create Pair64195312021-02-19 9:21:32334 days 13 hrs ago0x10bcfdad432a3faeb208b066d88f33493ce8fa29 IN  0x8f77e94eb5e74edb1ba8461a119a245ba5639b260 BNB0.0400643
0xa0cb3073cf8ae57a6fadf1631ef19d3f791af77f3a5c7c84487152bda84617460x6080604063941372021-02-18 12:11:50335 days 10 hrs ago0x10bcfdad432a3faeb208b066d88f33493ce8fa29 IN  Create: AliumFactory0 BNB0.0485105
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0x242e92a9d42fe4636df6df20a526b7fb101757ccd5b5ff7f644454808d579a6e83099032021-04-26 6:51:22268 days 15 hrs ago 0x5e468edc83968f9cfdfa47a75a777cdbb34d4bbc 0x8f77e94eb5e74edb1ba8461a119a245ba5639b260 BNB
0x242e92a9d42fe4636df6df20a526b7fb101757ccd5b5ff7f644454808d579a6e83099032021-04-26 6:51:22268 days 15 hrs ago 0x07899d5be4b700db9bf345530ff849a530ef79c3 0x8f77e94eb5e74edb1ba8461a119a245ba5639b260 BNB
0x242e92a9d42fe4636df6df20a526b7fb101757ccd5b5ff7f644454808d579a6e83099032021-04-26 6:51:22268 days 15 hrs ago 0x5e468edc83968f9cfdfa47a75a777cdbb34d4bbc 0x8f77e94eb5e74edb1ba8461a119a245ba5639b260 BNB
0xfb4d926617a11ac1a18ae9b81493868d86c2b501bd63f9d96c6fa7b74035a82d71329292021-03-16 9:05:37309 days 13 hrs ago 0x21d1e2fc25e5b3c7bb8347f6a94bb06aef211b86 0x8f77e94eb5e74edb1ba8461a119a245ba5639b260 BNB
0xfb4d926617a11ac1a18ae9b81493868d86c2b501bd63f9d96c6fa7b74035a82d71329292021-03-16 9:05:37309 days 13 hrs ago 0x07899d5be4b700db9bf345530ff849a530ef79c3 0x8f77e94eb5e74edb1ba8461a119a245ba5639b260 BNB
0xad1d63b631ead7d33e0c802ca130dcd87b9bc0ffb3ca27076ca061311f896bdf71192522021-03-15 21:41:09310 days 58 mins ago 0xc0c36d2274c084cddcf916b2c3b5d81b7e656e56 0x8f77e94eb5e74edb1ba8461a119a245ba5639b260 BNB
0xad1d63b631ead7d33e0c802ca130dcd87b9bc0ffb3ca27076ca061311f896bdf71192522021-03-15 21:41:09310 days 58 mins ago 0x07899d5be4b700db9bf345530ff849a530ef79c3 0x8f77e94eb5e74edb1ba8461a119a245ba5639b260 BNB
0x1788ced834baa917d4d872e8fae3094f78805b204d8e1942bf356a7730af00b271191832021-03-15 21:37:42310 days 1 hr ago 0xc0c36d2274c084cddcf916b2c3b5d81b7e656e56 0x8f77e94eb5e74edb1ba8461a119a245ba5639b260 BNB
0x1788ced834baa917d4d872e8fae3094f78805b204d8e1942bf356a7730af00b271191832021-03-15 21:37:42310 days 1 hr ago 0x07899d5be4b700db9bf345530ff849a530ef79c3 0x8f77e94eb5e74edb1ba8461a119a245ba5639b260 BNB
0x3f71addb1452ad683fe7cfa712e8c58f5809b2b7191c89304a480b6bbb6e966471148752021-03-15 18:02:18310 days 4 hrs ago 0xb7194756f546f5b7b89b7551b414fae4bf698c18 0x8f77e94eb5e74edb1ba8461a119a245ba5639b260 BNB
0x3f71addb1452ad683fe7cfa712e8c58f5809b2b7191c89304a480b6bbb6e966471148752021-03-15 18:02:18310 days 4 hrs ago 0x07899d5be4b700db9bf345530ff849a530ef79c3 0x8f77e94eb5e74edb1ba8461a119a245ba5639b260 BNB
0x89bd28a6f16b7d267387318aed252322ed55a134327b02ea047d1c2bc16b232f71072552021-03-15 11:15:16310 days 11 hrs ago 0x5e468edc83968f9cfdfa47a75a777cdbb34d4bbc 0x8f77e94eb5e74edb1ba8461a119a245ba5639b260 BNB
0x89bd28a6f16b7d267387318aed252322ed55a134327b02ea047d1c2bc16b232f71072552021-03-15 11:15:16310 days 11 hrs ago 0x07899d5be4b700db9bf345530ff849a530ef79c3 0x8f77e94eb5e74edb1ba8461a119a245ba5639b260 BNB
0x89bd28a6f16b7d267387318aed252322ed55a134327b02ea047d1c2bc16b232f71072552021-03-15 11:15:16310 days 11 hrs ago 0x5e468edc83968f9cfdfa47a75a777cdbb34d4bbc 0x8f77e94eb5e74edb1ba8461a119a245ba5639b260 BNB
0xcbf1d600b3008fe7cd2c6774c6568d166f3fd476338e51e32a39071bdd15f05b71072372021-03-15 11:14:04310 days 11 hrs ago 0x5e468edc83968f9cfdfa47a75a777cdbb34d4bbc 0x8f77e94eb5e74edb1ba8461a119a245ba5639b260 BNB
0xcbf1d600b3008fe7cd2c6774c6568d166f3fd476338e51e32a39071bdd15f05b71072372021-03-15 11:14:04310 days 11 hrs ago 0x07899d5be4b700db9bf345530ff849a530ef79c3 0x8f77e94eb5e74edb1ba8461a119a245ba5639b260 BNB
0xcbf1d600b3008fe7cd2c6774c6568d166f3fd476338e51e32a39071bdd15f05b71072372021-03-15 11:14:04310 days 11 hrs ago 0x5e468edc83968f9cfdfa47a75a777cdbb34d4bbc 0x8f77e94eb5e74edb1ba8461a119a245ba5639b260 BNB
0xe6fd12b25f755ade2c3ec256f72792704cc0affa701e4ef5124393daec6a6cbc71072152021-03-15 11:12:27310 days 11 hrs ago 0x5e468edc83968f9cfdfa47a75a777cdbb34d4bbc 0x8f77e94eb5e74edb1ba8461a119a245ba5639b260 BNB
0xe6fd12b25f755ade2c3ec256f72792704cc0affa701e4ef5124393daec6a6cbc71072152021-03-15 11:12:27310 days 11 hrs ago 0x07899d5be4b700db9bf345530ff849a530ef79c3 0x8f77e94eb5e74edb1ba8461a119a245ba5639b260 BNB
0xa48af3d2f7e2653a8d0c4208ffc81dc39b2ee98061ce6e6be4366d37ff98358f70251272021-03-12 14:47:21313 days 7 hrs ago 0xc0c36d2274c084cddcf916b2c3b5d81b7e656e56 0x8f77e94eb5e74edb1ba8461a119a245ba5639b260 BNB
0xa48af3d2f7e2653a8d0c4208ffc81dc39b2ee98061ce6e6be4366d37ff98358f70251272021-03-12 14:47:21313 days 7 hrs ago 0x07899d5be4b700db9bf345530ff849a530ef79c3 0x8f77e94eb5e74edb1ba8461a119a245ba5639b260 BNB
0x912bb1037bd83ca1d322a3c00f547832cee4d769751c80c3389f99bac754996770250292021-03-12 14:42:27313 days 7 hrs ago 0x896694db9d86675c6b708b9ec82c9ea495ed58b6 0x8f77e94eb5e74edb1ba8461a119a245ba5639b260 BNB
0x8a110ce3a787164165a4896db3f00d998c7184b5dd93842faf094a8778bf029970250172021-03-12 14:41:51313 days 7 hrs ago 0x13404534296edd9b50a4b3abe470189b8d06f28c 0x8f77e94eb5e74edb1ba8461a119a245ba5639b260 BNB
0xe04011b2975f08cafe3b65f1118d2fa3c69119b0a26e6008d8f29dc2228c256070250142021-03-12 14:41:42313 days 7 hrs ago 0xc0c36d2274c084cddcf916b2c3b5d81b7e656e56 0x8f77e94eb5e74edb1ba8461a119a245ba5639b260 BNB
0x17e4bedba2b957af1458056e0ab47c264ec445b2a27324262f54c5f22ccec59970250072021-03-12 14:41:21313 days 7 hrs ago 0x5e468edc83968f9cfdfa47a75a777cdbb34d4bbc 0x8f77e94eb5e74edb1ba8461a119a245ba5639b260 BNB
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Contract Source Code Verified (Exact Match)

Contract Name:
AliumFactory

Compiler Version
v0.5.16+commit.9c3226ce

Optimization Enabled:
Yes with 200 runs

Other Settings:
default evmVersion, MIT license

Contract Source Code (Solidity)

/**
 *Submitted for verification at BscScan.com on 2021-02-18
*/

pragma solidity =0.5.16;

// a library for performing overflow-safe math, courtesy of DappHub (https://github.com/dapphub/ds-math)

library SafeMath {
    function add(uint x, uint y) internal pure returns (uint z) {
        require((z = x + y) >= x, 'ds-math-add-overflow');
    }

    function sub(uint x, uint y) internal pure returns (uint z) {
        require((z = x - y) <= x, 'ds-math-sub-underflow');
    }

    function mul(uint x, uint y) internal pure returns (uint z) {
        require(y == 0 || (z = x * y) / y == x, 'ds-math-mul-overflow');
    }
}


interface IAliumFactory {
    event PairCreated(address indexed token0, address indexed token1, address pair, uint);

    function feeTo() external view returns (address);
    function feeToSetter() external view returns (address);

    function getPair(address tokenA, address tokenB) external view returns (address pair);
    function allPairs(uint) external view returns (address pair);
    function allPairsLength() external view returns (uint);

    function createPair(address tokenA, address tokenB) external returns (address pair);

    function setFeeTo(address) external;
    function setFeeToSetter(address) external;
}

interface IAliumPair {
    event Approval(address indexed owner, address indexed spender, uint value);
    event Transfer(address indexed from, address indexed to, uint value);

    function name() external pure returns (string memory);
    function symbol() external pure returns (string memory);
    function decimals() external pure returns (uint8);
    function totalSupply() external view returns (uint);
    function balanceOf(address owner) external view returns (uint);
    function allowance(address owner, address spender) external view returns (uint);

    function approve(address spender, uint value) external returns (bool);
    function transfer(address to, uint value) external returns (bool);
    function transferFrom(address from, address to, uint value) external returns (bool);

    function DOMAIN_SEPARATOR() external view returns (bytes32);
    function PERMIT_TYPEHASH() external pure returns (bytes32);
    function nonces(address owner) external view returns (uint);

    function permit(address owner, address spender, uint value, uint deadline, uint8 v, bytes32 r, bytes32 s) external;

    event Mint(address indexed sender, uint amount0, uint amount1);
    event Burn(address indexed sender, uint amount0, uint amount1, address indexed to);
    event Swap(
        address indexed sender,
        uint amount0In,
        uint amount1In,
        uint amount0Out,
        uint amount1Out,
        address indexed to
    );
    event Sync(uint112 reserve0, uint112 reserve1);

    function MINIMUM_LIQUIDITY() external pure returns (uint);
    function factory() external view returns (address);
    function token0() external view returns (address);
    function token1() external view returns (address);
    function getReserves() external view returns (uint112 reserve0, uint112 reserve1, uint32 blockTimestampLast);
    function price0CumulativeLast() external view returns (uint);
    function price1CumulativeLast() external view returns (uint);
    function kLast() external view returns (uint);

    function mint(address to) external returns (uint liquidity);
    function burn(address to) external returns (uint amount0, uint amount1);
    function swap(uint amount0Out, uint amount1Out, address to, bytes calldata data) external;
    function skim(address to) external;
    function sync() external;

    function initialize(address, address) external;
}


//import './interfaces/IAliumERC20.sol';

pragma solidity >=0.5.0;

interface IAliumERC20 {
    event Approval(address indexed owner, address indexed spender, uint value);
    event Transfer(address indexed from, address indexed to, uint value);

    function name() external pure returns (string memory);
    function symbol() external pure returns (string memory);
    function decimals() external pure returns (uint8);
    function totalSupply() external view returns (uint);
    function balanceOf(address owner) external view returns (uint);
    function allowance(address owner, address spender) external view returns (uint);

    function approve(address spender, uint value) external returns (bool);
    function transfer(address to, uint value) external returns (bool);
    function transferFrom(address from, address to, uint value) external returns (bool);

    function DOMAIN_SEPARATOR() external view returns (bytes32);
    function PERMIT_TYPEHASH() external pure returns (bytes32);
    function nonces(address owner) external view returns (uint);

    function permit(address owner, address spender, uint value, uint deadline, uint8 v, bytes32 r, bytes32 s) external;
}

interface IERC20 {
    event Approval(address indexed owner, address indexed spender, uint value);
    event Transfer(address indexed from, address indexed to, uint value);

    function name() external view returns (string memory);
    function symbol() external view returns (string memory);
    function decimals() external view returns (uint8);
    function totalSupply() external view returns (uint);
    function balanceOf(address owner) external view returns (uint);
    function allowance(address owner, address spender) external view returns (uint);

    function approve(address spender, uint value) external returns (bool);
    function transfer(address to, uint value) external returns (bool);
    function transferFrom(address from, address to, uint value) external returns (bool);
}

contract AliumERC20 is IAliumERC20 {
    using SafeMath for uint;

    string public constant name = 'Alium LPs';
    string public constant symbol = 'Alium-LP';
    uint8 public constant decimals = 18;
    uint  public totalSupply;
    mapping(address => uint) public balanceOf;
    mapping(address => mapping(address => uint)) public allowance;

    bytes32 public DOMAIN_SEPARATOR;
    // keccak256("Permit(address owner,address spender,uint256 value,uint256 nonce,uint256 deadline)");
    bytes32 public constant PERMIT_TYPEHASH = 0x6e71edae12b1b97f4d1f60370fef10105fa2faae0126114a169c64845d6126c9;
    mapping(address => uint) public nonces;

    event Approval(address indexed owner, address indexed spender, uint value);
    event Transfer(address indexed from, address indexed to, uint value);

    constructor() public {
        uint chainId;
        assembly {
            chainId := chainid
        }
        DOMAIN_SEPARATOR = keccak256(
            abi.encode(
                keccak256('EIP712Domain(string name,string version,uint256 chainId,address verifyingContract)'),
                keccak256(bytes(name)),
                keccak256(bytes('1')),
                chainId,
                address(this)
            )
        );
    }

    function _mint(address to, uint value) internal {
        totalSupply = totalSupply.add(value);
        balanceOf[to] = balanceOf[to].add(value);
        emit Transfer(address(0), to, value);
    }

    function _burn(address from, uint value) internal {
        balanceOf[from] = balanceOf[from].sub(value);
        totalSupply = totalSupply.sub(value);
        emit Transfer(from, address(0), value);
    }

    function _approve(address owner, address spender, uint value) private {
        allowance[owner][spender] = value;
        emit Approval(owner, spender, value);
    }

    function _transfer(address from, address to, uint value) private {
        balanceOf[from] = balanceOf[from].sub(value);
        balanceOf[to] = balanceOf[to].add(value);
        emit Transfer(from, to, value);
    }

    function approve(address spender, uint value) external returns (bool) {
        _approve(msg.sender, spender, value);
        return true;
    }

    function transfer(address to, uint value) external returns (bool) {
        _transfer(msg.sender, to, value);
        return true;
    }

    function transferFrom(address from, address to, uint value) external returns (bool) {
        if (allowance[from][msg.sender] != uint(-1)) {
            allowance[from][msg.sender] = allowance[from][msg.sender].sub(value);
        }
        _transfer(from, to, value);
        return true;
    }

    function permit(address owner, address spender, uint value, uint deadline, uint8 v, bytes32 r, bytes32 s) external {
        require(deadline >= block.timestamp, 'Alium: EXPIRED');
        bytes32 digest = keccak256(
            abi.encodePacked(
                '\x19\x01',
                DOMAIN_SEPARATOR,
                keccak256(abi.encode(PERMIT_TYPEHASH, owner, spender, value, nonces[owner]++, deadline))
            )
        );
        address recoveredAddress = ecrecover(digest, v, r, s);
        require(recoveredAddress != address(0) && recoveredAddress == owner, 'Alium: INVALID_SIGNATURE');
        _approve(owner, spender, value);
    }
}

// a library for performing various math operations

library Math {
    function min(uint x, uint y) internal pure returns (uint z) {
        z = x < y ? x : y;
    }

    // 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;
        }
    }
}


// a library for handling binary fixed point numbers (https://en.wikipedia.org/wiki/Q_(number_format))

// range: [0, 2**112 - 1]
// resolution: 1 / 2**112

library UQ112x112 {
    uint224 constant Q112 = 2**112;

    // encode a uint112 as a UQ112x112
    function encode(uint112 y) internal pure returns (uint224 z) {
        z = uint224(y) * Q112; // never overflows
    }

    // divide a UQ112x112 by a uint112, returning a UQ112x112
    function uqdiv(uint224 x, uint112 y) internal pure returns (uint224 z) {
        z = x / uint224(y);
    }
}


interface IAliumCallee {
    function aliumCall(address sender, uint amount0, uint amount1, bytes calldata data) external;
}

contract AliumPair is IAliumPair, AliumERC20 {
    using SafeMath  for uint;
    using UQ112x112 for uint224;

    uint public constant MINIMUM_LIQUIDITY = 10**3;
    bytes4 private constant SELECTOR = bytes4(keccak256(bytes('transfer(address,uint256)')));

    address public factory;
    address public token0;
    address public token1;

    uint112 private reserve0;           // uses single storage slot, accessible via getReserves
    uint112 private reserve1;           // uses single storage slot, accessible via getReserves
    uint32  private blockTimestampLast; // uses single storage slot, accessible via getReserves

    uint public price0CumulativeLast;
    uint public price1CumulativeLast;
    uint public kLast; // reserve0 * reserve1, as of immediately after the most recent liquidity event

    uint private unlocked = 1;
    modifier lock() {
        require(unlocked == 1, 'Alium: LOCKED');
        unlocked = 0;
        _;
        unlocked = 1;
    }

    function getReserves() public view returns (uint112 _reserve0, uint112 _reserve1, uint32 _blockTimestampLast) {
        _reserve0 = reserve0;
        _reserve1 = reserve1;
        _blockTimestampLast = blockTimestampLast;
    }

    function _safeTransfer(address token, address to, uint value) private {
        (bool success, bytes memory data) = token.call(abi.encodeWithSelector(SELECTOR, to, value));
        require(success && (data.length == 0 || abi.decode(data, (bool))), 'Alium: TRANSFER_FAILED');
    }

    event Mint(address indexed sender, uint amount0, uint amount1);
    event Burn(address indexed sender, uint amount0, uint amount1, address indexed to);
    event Swap(
        address indexed sender,
        uint amount0In,
        uint amount1In,
        uint amount0Out,
        uint amount1Out,
        address indexed to
    );
    event Sync(uint112 reserve0, uint112 reserve1);

    constructor() public {
        factory = msg.sender;
    }

    // called once by the factory at time of deployment
    function initialize(address _token0, address _token1) external {
        require(msg.sender == factory, 'Alium: FORBIDDEN'); // sufficient check
        token0 = _token0;
        token1 = _token1;
    }

    // update reserves and, on the first call per block, price accumulators
    function _update(uint balance0, uint balance1, uint112 _reserve0, uint112 _reserve1) private {
        require(balance0 <= uint112(-1) && balance1 <= uint112(-1), 'Alium: OVERFLOW');
        uint32 blockTimestamp = uint32(block.timestamp % 2**32);
        uint32 timeElapsed = blockTimestamp - blockTimestampLast; // overflow is desired
        if (timeElapsed > 0 && _reserve0 != 0 && _reserve1 != 0) {
            // * never overflows, and + overflow is desired
            price0CumulativeLast += uint(UQ112x112.encode(_reserve1).uqdiv(_reserve0)) * timeElapsed;
            price1CumulativeLast += uint(UQ112x112.encode(_reserve0).uqdiv(_reserve1)) * timeElapsed;
        }
        reserve0 = uint112(balance0);
        reserve1 = uint112(balance1);
        blockTimestampLast = blockTimestamp;
        emit Sync(reserve0, reserve1);
    }

    // if fee is on, mint liquidity equivalent to 1/6th of the growth in sqrt(k)
    function _mintFee(uint112 _reserve0, uint112 _reserve1) private returns (bool feeOn) {
        address feeTo = IAliumFactory(factory).feeTo();
        feeOn = feeTo != address(0);
        uint _kLast = kLast; // gas savings
        if (feeOn) {
            if (_kLast != 0) {
                uint rootK = Math.sqrt(uint(_reserve0).mul(_reserve1));
                uint rootKLast = Math.sqrt(_kLast);
                if (rootK > rootKLast) {
                    uint numerator = totalSupply.mul(rootK.sub(rootKLast));
                    uint denominator = rootK.mul(3).add(rootKLast);
                    uint liquidity = numerator / denominator;
                    if (liquidity > 0) _mint(feeTo, liquidity);
                }
            }
        } else if (_kLast != 0) {
            kLast = 0;
        }
    }

    // this low-level function should be called from a contract which performs important safety checks
    function mint(address to) external lock returns (uint liquidity) {
        (uint112 _reserve0, uint112 _reserve1,) = getReserves(); // gas savings
        uint balance0 = IERC20(token0).balanceOf(address(this));
        uint balance1 = IERC20(token1).balanceOf(address(this));
        uint amount0 = balance0.sub(_reserve0);
        uint amount1 = balance1.sub(_reserve1);

        bool feeOn = _mintFee(_reserve0, _reserve1);
        uint _totalSupply = totalSupply; // gas savings, must be defined here since totalSupply can update in _mintFee
        if (_totalSupply == 0) {
            liquidity = Math.sqrt(amount0.mul(amount1)).sub(MINIMUM_LIQUIDITY);
            _mint(address(0), MINIMUM_LIQUIDITY); // permanently lock the first MINIMUM_LIQUIDITY tokens
        } else {
            liquidity = Math.min(amount0.mul(_totalSupply) / _reserve0, amount1.mul(_totalSupply) / _reserve1);
        }
        require(liquidity > 0, 'Alium: INSUFFICIENT_LIQUIDITY_MINTED');
        _mint(to, liquidity);

        _update(balance0, balance1, _reserve0, _reserve1);
        if (feeOn) kLast = uint(reserve0).mul(reserve1); // reserve0 and reserve1 are up-to-date
        emit Mint(msg.sender, amount0, amount1);
    }

    // this low-level function should be called from a contract which performs important safety checks
    function burn(address to) external lock returns (uint amount0, uint amount1) {
        (uint112 _reserve0, uint112 _reserve1,) = getReserves(); // gas savings
        address _token0 = token0;                                // gas savings
        address _token1 = token1;                                // gas savings
        uint balance0 = IERC20(_token0).balanceOf(address(this));
        uint balance1 = IERC20(_token1).balanceOf(address(this));
        uint liquidity = balanceOf[address(this)];

        bool feeOn = _mintFee(_reserve0, _reserve1);
        uint _totalSupply = totalSupply; // gas savings, must be defined here since totalSupply can update in _mintFee
        amount0 = liquidity.mul(balance0) / _totalSupply; // using balances ensures pro-rata distribution
        amount1 = liquidity.mul(balance1) / _totalSupply; // using balances ensures pro-rata distribution
        require(amount0 > 0 && amount1 > 0, 'Alium: INSUFFICIENT_LIQUIDITY_BURNED');
        _burn(address(this), liquidity);
        _safeTransfer(_token0, to, amount0);
        _safeTransfer(_token1, to, amount1);
        balance0 = IERC20(_token0).balanceOf(address(this));
        balance1 = IERC20(_token1).balanceOf(address(this));

        _update(balance0, balance1, _reserve0, _reserve1);
        if (feeOn) kLast = uint(reserve0).mul(reserve1); // reserve0 and reserve1 are up-to-date
        emit Burn(msg.sender, amount0, amount1, to);
    }

    // this low-level function should be called from a contract which performs important safety checks
    function swap(uint amount0Out, uint amount1Out, address to, bytes calldata data) external lock {
        require(amount0Out > 0 || amount1Out > 0, 'Alium: INSUFFICIENT_OUTPUT_AMOUNT');
        (uint112 _reserve0, uint112 _reserve1,) = getReserves(); // gas savings
        require(amount0Out < _reserve0 && amount1Out < _reserve1, 'Alium: INSUFFICIENT_LIQUIDITY');

        uint balance0;
        uint balance1;
        { // scope for _token{0,1}, avoids stack too deep errors
            address _token0 = token0;
            address _token1 = token1;
            require(to != _token0 && to != _token1, 'Alium: INVALID_TO');
            if (amount0Out > 0) _safeTransfer(_token0, to, amount0Out); // optimistically transfer tokens
            if (amount1Out > 0) _safeTransfer(_token1, to, amount1Out); // optimistically transfer tokens
            if (data.length > 0) IAliumCallee(to).aliumCall(msg.sender, amount0Out, amount1Out, data);
            balance0 = IERC20(_token0).balanceOf(address(this));
            balance1 = IERC20(_token1).balanceOf(address(this));
        }
        uint amount0In = balance0 > _reserve0 - amount0Out ? balance0 - (_reserve0 - amount0Out) : 0;
        uint amount1In = balance1 > _reserve1 - amount1Out ? balance1 - (_reserve1 - amount1Out) : 0;
        require(amount0In > 0 || amount1In > 0, 'Alium: INSUFFICIENT_INPUT_AMOUNT');
        { // scope for reserve{0,1}Adjusted, avoids stack too deep errors
            uint balance0Adjusted = balance0.mul(1000).sub(amount0In.mul(2));
            uint balance1Adjusted = balance1.mul(1000).sub(amount1In.mul(2));
            require(balance0Adjusted.mul(balance1Adjusted) >= uint(_reserve0).mul(_reserve1).mul(1000**2), 'Alium: K');
        }

        _update(balance0, balance1, _reserve0, _reserve1);
        emit Swap(msg.sender, amount0In, amount1In, amount0Out, amount1Out, to);
    }

    // force balances to match reserves
    function skim(address to) external lock {
        address _token0 = token0; // gas savings
        address _token1 = token1; // gas savings
        _safeTransfer(_token0, to, IERC20(_token0).balanceOf(address(this)).sub(reserve0));
        _safeTransfer(_token1, to, IERC20(_token1).balanceOf(address(this)).sub(reserve1));
    }

    // force reserves to match balances
    function sync() external lock {
        _update(IERC20(token0).balanceOf(address(this)), IERC20(token1).balanceOf(address(this)), reserve0, reserve1);
    }
}

contract AliumFactory is IAliumFactory {
    bytes32 public constant INIT_CODE_PAIR_HASH = keccak256(abi.encodePacked(type(AliumPair).creationCode));

    address public feeTo;
    address public feeToSetter;

    mapping(address => mapping(address => address)) public getPair;
    address[] public allPairs;

    event PairCreated(address indexed token0, address indexed token1, address pair, uint);

    constructor(address _feeToSetter) public {
        feeToSetter = _feeToSetter;
    }

    function allPairsLength() external view returns (uint) {
        return allPairs.length;
    }

    function createPair(address tokenA, address tokenB) external returns (address pair) {
        require(tokenA != tokenB, 'Alium: IDENTICAL_ADDRESSES');
        (address token0, address token1) = tokenA < tokenB ? (tokenA, tokenB) : (tokenB, tokenA);
        require(token0 != address(0), 'Alium: ZERO_ADDRESS');
        require(getPair[token0][token1] == address(0), 'Alium: PAIR_EXISTS'); // single check is sufficient
        bytes memory bytecode = type(AliumPair).creationCode;
        bytes32 salt = keccak256(abi.encodePacked(token0, token1));
        assembly {
            pair := create2(0, add(bytecode, 32), mload(bytecode), salt)
        }
        IAliumPair(pair).initialize(token0, token1);
        getPair[token0][token1] = pair;
        getPair[token1][token0] = pair; // populate mapping in the reverse direction
        allPairs.push(pair);
        emit PairCreated(token0, token1, pair, allPairs.length);
    }

    function setFeeTo(address _feeTo) external {
        require(msg.sender == feeToSetter, 'Alium: FORBIDDEN');
        feeTo = _feeTo;
    }

    function setFeeToSetter(address _feeToSetter) external {
        require(msg.sender == feeToSetter, 'Alium: FORBIDDEN');
        feeToSetter = _feeToSetter;
    }
}

Contract ABI

[{"inputs":[{"internalType":"address","name":"_feeToSetter","type":"address"}],"payable":false,"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"token0","type":"address"},{"indexed":true,"internalType":"address","name":"token1","type":"address"},{"indexed":false,"internalType":"address","name":"pair","type":"address"},{"indexed":false,"internalType":"uint256","name":"","type":"uint256"}],"name":"PairCreated","type":"event"},{"constant":true,"inputs":[],"name":"INIT_CODE_PAIR_HASH","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"internalType":"uint256","name":"","type":"uint256"}],"name":"allPairs","outputs":[{"internalType":"address","name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"allPairsLength","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"tokenA","type":"address"},{"internalType":"address","name":"tokenB","type":"address"}],"name":"createPair","outputs":[{"internalType":"address","name":"pair","type":"address"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"feeTo","outputs":[{"internalType":"address","name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"feeToSetter","outputs":[{"internalType":"address","name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"internalType":"address","name":"","type":"address"},{"internalType":"address","name":"","type":"address"}],"name":"getPair","outputs":[{"internalType":"address","name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"_feeTo","type":"address"}],"name":"setFeeTo","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"_feeToSetter","type":"address"}],"name":"setFeeToSetter","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"}]

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Constructor Arguments (ABI-Encoded and is the last bytes of the Contract Creation Code above)

00000000000000000000000010bcfdad432a3faeb208b066d88f33493ce8fa29

-----Decoded View---------------
Arg [0] : _feeToSetter (address): 0x10bcfdad432a3faeb208b066d88f33493ce8fa29

-----Encoded View---------------
1 Constructor Arguments found :
Arg [0] : 00000000000000000000000010bcfdad432a3faeb208b066d88f33493ce8fa29


Deployed ByteCode Sourcemap

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Swarm Source

bzzr://aba88cae78caeffeab06d4620357102b059fba4a9cb7f9582fd695a6fd2be1e1
Block Transaction Gas Used Reward
Age Block Fee Address BC Fee Address Voting Power Jailed Incoming
Block Uncle Number Difficulty Gas Used Reward
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