Contract 0x985bca32293a7a496300a48081947321177a86fd

Txn Hash Method
Block
From
To
Value [Txn Fee]
0xc08582e689c4ee36d33790b44f4f532e350de32765a44d6a19d81e5a25330fd8Create Pair19720852022-09-29 16:11:183 days 22 hrs agoBeamswap: Deployer IN  Beamswap: Factory0 GLMR0.20758025
0xacb7763edf9978ba57d6cdd402f750d498ad18d656516f5c53789998fa3aa3b4Create Pair18310852022-09-09 11:55:4824 days 2 hrs agoBeamswap: Deployer IN  Beamswap: Factory0 GLMR0.20758126
0x1be9c8810e13e582d00445441ec14d666e8ac049f4f918d3d8cd1a17ec49937eCreate Pair15869202022-08-05 8:25:1859 days 6 hrs agoBeamswap: Deployer IN  Beamswap: Factory0 GLMR0.20758126
0xfc06ff09941b42eb6b0b03b718424d2d9f5dac147c7c10e92df0afbbd5350179Create Pair15869192022-08-05 8:25:0659 days 6 hrs agoBeamswap: Deployer IN  Beamswap: Factory0 GLMR0.20758025
0x7412c712a3fdde4172fb80f2c4222da2bf53c166766588e89830e2ab9d355941Create Pair15869162022-08-05 8:24:2459 days 6 hrs agoBeamswap: Deployer IN  Beamswap: Factory0 GLMR0.20758025
0x71c47571be0065118c2526bd4ea444e71e0cdf3d66ac8a152ec28adda2b26b45Create Pair11832542022-06-06 16:46:00118 days 21 hrs agoBeamswap: Deployer IN  Beamswap: Factory0 GLMR0.20758126
0x05a5b0062e43731262b2b6519bda7fa98130e9d8e10937d2bfab5d3a22b5783cSet Fee To8100362022-04-13 10:13:36173 days 4 hrs agoBeamswap: Deployer IN  Beamswap: Factory0 GLMR0.0026099
0xd0ba6f629ac07e217b44fdf7afcc715bd8dfd0964a2873463cc59cc63f991e9bSet Fee To8053002022-04-12 18:04:30173 days 20 hrs agoBeamswap: Deployer IN  Beamswap: Factory0 GLMR0.0026099
0x49cfd2be900ee8a3c69067e27e6b32ab2152dde54b9d5d1e8f0f3c4a14030b7aCreate Pair3906122022-02-11 19:36:00233 days 19 hrs agoBeamswap: Deployer IN  Beamswap: Factory0 GLMR0.1606487
0xf3165bb726d1a0fc4db9f662977c9d513ce2f95d970310f3569b0ad7e93f94afCreate Pair3906102022-02-11 19:35:36233 days 19 hrs agoBeamswap: Deployer IN  Beamswap: Factory0 GLMR0.1893821
0x9474384094b6bd873f83c82a5802483e06f44ee71ff88e3cc54b66e3b370aedaCreate Pair2000892022-01-15 13:46:12261 days 58 mins agoBeamswap: Deployer IN  Beamswap: Factory0 GLMR0.204595
0x9ac4c88c4f2e4663eb5341f4dfa5f286055e47609c16b066f09f62f8ecd54238Create Pair2000862022-01-15 13:45:36261 days 59 mins agoBeamswap: Deployer IN  Beamswap: Factory0 GLMR0.204595
0xdd9a49874ef2d7a05f8070eb49dbd9021c6c7ef18c96c69eae0a88feaf2bc1edCreate Pair2000812022-01-15 13:44:36261 days 1 hr agoBeamswap: Deployer IN  Beamswap: Factory0 GLMR0.204596
0x58ab7b84d84c896b373f797ef6cc617a4fd19dc97ca559847ddfd4dd721f6e99Create Pair2000792022-01-15 13:44:00261 days 1 hr agoBeamswap: Deployer IN  Beamswap: Factory0 GLMR0.204596
0x757941ff95410ada48b6c36936ab3fa86d3c7f8e13e24603fa73587864a328f7Create Pair2000722022-01-15 13:42:18261 days 1 hr agoBeamswap: Deployer IN  Beamswap: Factory0 GLMR0.204596
0x3739347c0f6dcbb6662d9b9b67eeb36436a876a6fcbfce2900cd5a449d231d75Create Pair2000692022-01-15 13:41:42261 days 1 hr agoBeamswap: Deployer IN  Beamswap: Factory0 GLMR0.204596
0x8881055be3c2d61cb1ff546caa6e71c63985c39c29ae8a5bcba94e1369d39240Create Pair2000672022-01-15 13:41:06261 days 1 hr agoBeamswap: Deployer IN  Beamswap: Factory0 GLMR0.204595
0xf0b28ab799cd2d39c788d7a55585bd67ca500288ba6159d243e27706be558a89Create Pair1999672022-01-15 13:19:48261 days 1 hr agoBeamswap: Deployer IN  Beamswap: Factory0 GLMR0.204596
0xd8f4b15ce35aa4bcf9df78c9c9264e7a0156935fe546db31868d0fb8c13b3627Create Pair1999632022-01-15 13:19:00261 days 1 hr agoBeamswap: Deployer IN  Beamswap: Factory0 GLMR0.206516
0xadef1e11352e323a834b3af47915352e1fc18aa4cc3059ef9d7137a00b93d923Set Fee To1991582022-01-15 10:34:06261 days 4 hrs agoBeamswap: Deployer IN  Beamswap: Factory0 GLMR0.0043387
0x65a87ac14663c65231bf8582225b051999176cf477b30083f4f44e301a8f032c0x608060401991562022-01-15 10:33:42261 days 4 hrs agoBeamswap: Deployer IN  Create: BeamSwapFactory0 GLMR0.251658
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0xc08582e689c4ee36d33790b44f4f532e350de32765a44d6a19d81e5a25330fd819720852022-09-29 16:11:183 days 22 hrs ago Beamswap: Factory  Contract Creation0 GLMR
0xa123372a5d55d00f7b011c94f85ead65f7cba548f6457c03e6444485baab317019432912022-09-25 13:48:428 days 56 mins ago Beamswap: Factory  Contract Creation0 GLMR
0x349fac025ccf76dd6cb8ffb3221e631c4a194c600a965fbe32db2b20d3a3fc8419348732022-09-24 8:31:309 days 6 hrs ago Beamswap: Factory  Contract Creation0 GLMR
0xd3aca08ecab6057807cd21492843be07745b349ff14e3bd0d9973b862542d5c519348682022-09-24 8:30:309 days 6 hrs ago Beamswap: Factory  Contract Creation0 GLMR
0x0ec2a70885a7b42606e8fbac53f53d16477d344ac2471ebcc86e71b663db2ace19297692022-09-23 14:55:129 days 23 hrs ago Beamswap: Factory  Contract Creation0 GLMR
0x9c309f4b0f3dcb98290c50c0e94245daaba24afe87a452d59489fb90576e871f18579592022-09-13 9:17:3620 days 5 hrs ago Beamswap: Factory  Contract Creation0 GLMR
0xb99c765583133c6b0afd2255122e438c305e11a342df5c082f739f7a05b4e44d18579542022-09-13 9:16:3620 days 5 hrs ago Beamswap: Factory  Contract Creation0 GLMR
0x3bf2432aa12b890ed7023d47d77204590bf132504d57941616f0f01948cea14118579412022-09-13 9:14:0020 days 5 hrs ago Beamswap: Factory  Contract Creation0 GLMR
0xacb7763edf9978ba57d6cdd402f750d498ad18d656516f5c53789998fa3aa3b418310852022-09-09 11:55:4824 days 2 hrs ago Beamswap: Factory  Contract Creation0 GLMR
0xd070983c69db56cf0b846e5618681e55a2b39aa6094f04527ab9635aed337f4218208082022-09-08 0:05:1225 days 14 hrs ago Beamswap: Factory  Contract Creation0 GLMR
0xad63543ad7ae15fe41eb7d7c52b21ab7bc2f3a22354dd3b4313aa946fb72c20418207872022-09-08 0:00:5425 days 14 hrs ago Beamswap: Factory  Contract Creation0 GLMR
0xf1ac22ed2b29aceba3b4e272886f4167ac51efda4c14787a710c00aade92267a17970392022-09-04 13:14:0629 days 1 hr ago Beamswap: Factory  Contract Creation0 GLMR
0x6efae873cf7c7af13931eedc4edfbda22cf40b024f0e20503b5591f2b5f9a79117969892022-09-04 13:03:5429 days 1 hr ago Beamswap: Factory  Contract Creation0 GLMR
0x64e36e4c37a531a28b88fd8a61d8b6a0e072b2aa147b0cc7230984f74f39bd4017649512022-08-30 22:37:0633 days 16 hrs ago Beamswap: Factory  Contract Creation0 GLMR
0xaebf82b26c8e770643701508bb1334913e652b9c266e0d03fc5f6b1265aef39d16960222022-08-21 1:25:3643 days 13 hrs ago Beamswap: Factory  Contract Creation0 GLMR
0x79ccc85a637e457aabf72c01ef755f8318a11d6e9e9ecdda42d6d444418bb94016345152022-08-12 4:51:3652 days 9 hrs ago Beamswap: Factory  Contract Creation0 GLMR
0xa0ab17f83175560746b045327b7c15d33194d150855c4247714beebae6cf672216201942022-08-10 3:27:5454 days 11 hrs ago Beamswap: Factory  Contract Creation0 GLMR
0xf67cc0f064d4b5432cf8cb3337629a32c4afe652367e836021e36783f5fa685616025772022-08-07 14:41:5457 days 3 mins ago Beamswap: Factory  Contract Creation0 GLMR
0x0363c0216c8a991909e980052480b5a0448bc727c4977d32b7844b8056a6dd9c15962552022-08-06 16:53:2457 days 21 hrs ago Beamswap: Factory  Contract Creation0 GLMR
0x003729b026cc3b46b47c1f7580fea86d97bc1f66d82354649e2fa369f694838c15905422022-08-05 21:13:0658 days 17 hrs ago Beamswap: Factory  Contract Creation0 GLMR
0xc59b5104214a4ff250b015d6407348a060130675434e10ced70107996aa0f21015888202022-08-05 15:08:4258 days 23 hrs ago Beamswap: Factory  Contract Creation0 GLMR
0xf97123b5bcb076ff846e7078b565d1cd4f2fc754ffac11d1db153205a9d688aa15888132022-08-05 15:07:0658 days 23 hrs ago Beamswap: Factory  Contract Creation0 GLMR
0x39beb7710c51087e345efbf53fbd7cc8d62d5eb5cf5931329c0e07e19fe5d16215888052022-08-05 15:05:1258 days 23 hrs ago Beamswap: Factory  Contract Creation0 GLMR
0x1be9c8810e13e582d00445441ec14d666e8ac049f4f918d3d8cd1a17ec49937e15869202022-08-05 8:25:1859 days 6 hrs ago Beamswap: Factory  Contract Creation0 GLMR
0xfc06ff09941b42eb6b0b03b718424d2d9f5dac147c7c10e92df0afbbd535017915869192022-08-05 8:25:0659 days 6 hrs ago Beamswap: Factory  Contract Creation0 GLMR
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Contract Source Code Verified (Exact Match)

Contract Name:
BeamSwapFactory

Compiler Version
v0.5.16+commit.9c3226ce

Optimization Enabled:
Yes with 1000 runs

Other Settings:
default evmVersion, MIT license

Contract Source Code (Solidity)

/**
 *Submitted for verification at moonbeam.moonscan.io on 2022-01-16
*/

// Sources flattened with hardhat v2.7.1 https://hardhat.org

// File contracts/uniswapv2/interfaces/IBeamSwapFactory.sol

// SPDX-License-Identifier: MIT
pragma solidity >=0.5.0;

interface IBeamSwapFactory {
    event PairCreated(address indexed token0, address indexed token1, address pair, uint256);

    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(uint256) external view returns (address pair);
    function allPairsLength() external view returns (uint256);

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

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


// File contracts/uniswapv2/interfaces/IBeamSwapPair.sol

// SPDX-License-Identifier: MIT
pragma solidity >=0.5.0;

interface IBeamSwapPair {
    event Approval(address indexed owner, address indexed spender, uint256 value);
    event Transfer(address indexed from, address indexed to, uint256 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 (uint256);
    function balanceOf(address owner) external view returns (uint256);
    function allowance(address owner, address spender) external view returns (uint256);

    function approve(address spender, uint256 value) external returns (bool);
    function transfer(address to, uint256 value) external returns (bool);
    function transferFrom(address from, address to, uint256 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 (uint256);

    function permit(address owner, address spender, uint256 value, uint256 deadline, uint8 v, bytes32 r, bytes32 s) external;

    event Mint(address indexed sender, uint256 amount0, uint256 amount1);
    event Burn(address indexed sender, uint256 amount0, uint256 amount1, address indexed to);
    event Swap(
        address indexed sender,
        uint256 amount0In,
        uint256 amount1In,
        uint256 amount0Out,
        uint256 amount1Out,
        address indexed to
    );
    event Sync(uint112 reserve0, uint112 reserve1);

    function MINIMUM_LIQUIDITY() external pure returns (uint256);
    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 (uint256);
    function price1CumulativeLast() external view returns (uint256);
    function kLast() external view returns (uint256);

    function mint(address to) external returns (uint256 liquidity);
    function burn(address to) external returns (uint256 amount0, uint256 amount1);
    function swap(uint256 amount0Out, uint256 amount1Out, address to, bytes calldata data) external;
    function skim(address to) external;
    function sync() external;

    function initialize(address, address) external;
}


// File contracts/uniswapv2/interfaces/IBeamSwapERC20.sol

// SPDX-License-Identifier: MIT
pragma solidity >=0.5.0;

interface IBeamSwapERC20 {
    event Approval(address indexed owner, address indexed spender, uint256 value);
    event Transfer(address indexed from, address indexed to, uint256 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 (uint256);
    function balanceOf(address owner) external view returns (uint256);
    function allowance(address owner, address spender) external view returns (uint256);

    function approve(address spender, uint256 value) external returns (bool);
    function transfer(address to, uint256 value) external returns (bool);
    function transferFrom(address from, address to, uint256 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 (uint256);

    function permit(address owner, address spender, uint256 value, uint256 deadline, uint8 v, bytes32 r, bytes32 s) external;
}


// File contracts/uniswapv2/libraries/SafeMath.sol

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');
    }
}


// File contracts/uniswapv2/BeamSwapERC20.sol

pragma solidity =0.5.16;
contract BeamSwapERC20 is IBeamSwapERC20 {
    using SafeMath for uint256;

    string public constant name = 'BeamSwap LPs';
    string public constant symbol = 'BEAM-LP';
    uint8 public constant decimals = 18;
    uint256  public totalSupply;
    mapping(address => uint256) public balanceOf;
    mapping(address => mapping(address => uint256)) 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 => uint256) public nonces;

    event Approval(address indexed owner, address indexed spender, uint256 value);
    event Transfer(address indexed from, address indexed to, uint256 value);

    constructor() public {
        uint256 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, uint256 value) internal {
        totalSupply = totalSupply.add(value);
        balanceOf[to] = balanceOf[to].add(value);
        emit Transfer(address(0), to, value);
    }

    function _burn(address from, uint256 value) internal {
        balanceOf[from] = balanceOf[from].sub(value);
        totalSupply = totalSupply.sub(value);
        emit Transfer(from, address(0), value);
    }

    function _approve(address owner, address spender, uint256 value) private {
        allowance[owner][spender] = value;
        emit Approval(owner, spender, value);
    }

    function _transfer(address from, address to, uint256 value) private {
        balanceOf[from] = balanceOf[from].sub(value);
        balanceOf[to] = balanceOf[to].add(value);
        emit Transfer(from, to, value);
    }

    function approve(address spender, uint256 value) external returns (bool) {
        _approve(msg.sender, spender, value);
        return true;
    }

    function transfer(address to, uint256 value) external returns (bool) {
        _transfer(msg.sender, to, value);
        return true;
    }

    function transferFrom(address from, address to, uint256 value) external returns (bool) {
        if (allowance[from][msg.sender] != uint256(-1)) {
            allowance[from][msg.sender] = allowance[from][msg.sender].sub(value);
        }
        _transfer(from, to, value);
        return true;
    }

    function permit(address owner, address spender, uint256 value, uint256 deadline, uint8 v, bytes32 r, bytes32 s) external {
        require(deadline >= block.timestamp, 'BeamSwap: 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, 'BeamSwap: INVALID_SIGNATURE');
        _approve(owner, spender, value);
    }
}


// File contracts/uniswapv2/libraries/Math.sol

pragma solidity =0.5.16;

// 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;
        }
    }
}


// File contracts/uniswapv2/libraries/UQ112x112.sol

pragma solidity =0.5.16;

// 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);
    }
}


// File contracts/uniswapv2/interfaces/IERC20.sol

// SPDX-License-Identifier: MIT

pragma solidity >=0.5.0;

interface IERC20 {
    event Approval(address indexed owner, address indexed spender, uint256 value);
    event Transfer(address indexed from, address indexed to, uint256 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 (uint256);
    function balanceOf(address owner) external view returns (uint256);
    function allowance(address owner, address spender) external view returns (uint256);

    function approve(address spender, uint256 value) external returns (bool);
    function transfer(address to, uint256 value) external returns (bool);
    function transferFrom(address from, address to, uint256 value) external returns (bool);
}


// File contracts/uniswapv2/interfaces/IBeamSwapCallee.sol

// SPDX-License-Identifier: MIT
pragma solidity >=0.5.0;

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


// File contracts/uniswapv2/BeamSwapPair.sol

pragma solidity =0.5.16;
contract BeamSwapPair is IBeamSwapPair, BeamSwapERC20 {
    using SafeMath for uint256;
    using UQ112x112 for uint224;

    uint256 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

    uint256 public price0CumulativeLast;
    uint256 public price1CumulativeLast;
    uint256 public kLast; // reserve0 * reserve1, as of immediately after the most recent liquidity event

    uint256 private unlocked = 1;
    modifier lock() {
        require(unlocked == 1, "BeamSwap: 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,
        uint256 value
    ) private {
        (bool success, bytes memory data) = token.call(
            abi.encodeWithSelector(SELECTOR, to, value)
        );
        require(
            success && (data.length == 0 || abi.decode(data, (bool))),
            "BeamSwap: TRANSFER_FAILED"
        );
    }

    event Mint(address indexed sender, uint256 amount0, uint256 amount1);
    event Burn(
        address indexed sender,
        uint256 amount0,
        uint256 amount1,
        address indexed to
    );
    event Swap(
        address indexed sender,
        uint256 amount0In,
        uint256 amount1In,
        uint256 amount0Out,
        uint256 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, "BeamSwap: FORBIDDEN"); // sufficient check
        token0 = _token0;
        token1 = _token1;
    }

    // update reserves and, on the first call per block, price accumulators
    function _update(
        uint256 balance0,
        uint256 balance1,
        uint112 _reserve0,
        uint112 _reserve1
    ) private {
        require(
            balance0 <= uint112(-1) && balance1 <= uint112(-1),
            "BeamSwap: 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 +=
                uint256(UQ112x112.encode(_reserve1).uqdiv(_reserve0)) *
                timeElapsed;
            price1CumulativeLast +=
                uint256(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 = IBeamSwapFactory(factory).feeTo();
        feeOn = feeTo != address(0);
        uint256 _kLast = kLast; // gas savings
        if (feeOn) {
            if (_kLast != 0) {
                uint256 rootK = Math.sqrt(uint256(_reserve0).mul(_reserve1));
                uint256 rootKLast = Math.sqrt(_kLast);
                if (rootK > rootKLast) {
                    uint256 numerator = totalSupply.mul(rootK.sub(rootKLast));
                    uint256 denominator = (rootK.mul(1307692308) / 1000000000).add(rootKLast);
                    uint256 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 (uint256 liquidity) {
        (uint112 _reserve0, uint112 _reserve1, ) = getReserves(); // gas savings
        uint256 balance0 = IERC20(token0).balanceOf(address(this));
        uint256 balance1 = IERC20(token1).balanceOf(address(this));
        uint256 amount0 = balance0.sub(_reserve0);
        uint256 amount1 = balance1.sub(_reserve1);

        bool feeOn = _mintFee(_reserve0, _reserve1);
        uint256 _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, "BeamSwap: INSUFFICIENT_LIQUIDITY_MINTED");
        _mint(to, liquidity);

        _update(balance0, balance1, _reserve0, _reserve1);
        if (feeOn) kLast = uint256(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 (uint256 amount0, uint256 amount1)
    {
        (uint112 _reserve0, uint112 _reserve1, ) = getReserves(); // gas savings
        address _token0 = token0; // gas savings
        address _token1 = token1; // gas savings
        uint256 balance0 = IERC20(_token0).balanceOf(address(this));
        uint256 balance1 = IERC20(_token1).balanceOf(address(this));
        uint256 liquidity = balanceOf[address(this)];

        bool feeOn = _mintFee(_reserve0, _reserve1);
        uint256 _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,
            "BeamSwap: 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 = uint256(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(
        uint256 amount0Out,
        uint256 amount1Out,
        address to,
        bytes calldata data
    ) external lock {
        require(
            amount0Out > 0 || amount1Out > 0,
            "BeamSwap: INSUFFICIENT_OUTPUT_AMOUNT"
        );
        (uint112 _reserve0, uint112 _reserve1, ) = getReserves(); // gas savings
        require(
            amount0Out < _reserve0 && amount1Out < _reserve1,
            "BeamSwap: INSUFFICIENT_LIQUIDITY"
        );

        uint256 balance0;
        uint256 balance1;
        {
            // scope for _token{0,1}, avoids stack too deep errors
            address _token0 = token0;
            address _token1 = token1;
            require(to != _token0 && to != _token1, "BeamSwap: 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)
                IBeamSwapCallee(to).BeamSwapCall(
                    msg.sender,
                    amount0Out,
                    amount1Out,
                    data
                );
            balance0 = IERC20(_token0).balanceOf(address(this));
            balance1 = IERC20(_token1).balanceOf(address(this));
        }
        uint256 amount0In = balance0 > _reserve0 - amount0Out
            ? balance0 - (_reserve0 - amount0Out)
            : 0;
        uint256 amount1In = balance1 > _reserve1 - amount1Out
            ? balance1 - (_reserve1 - amount1Out)
            : 0;
        require(
            amount0In > 0 || amount1In > 0,
            "BeamSwap: INSUFFICIENT_INPUT_AMOUNT"
        );
        {
            // scope for reserve{0,1}Adjusted, avoids stack too deep errors
            uint256 balance0Adjusted = balance0.mul(1000).sub(amount0In.mul(3));
            uint256 balance1Adjusted = balance1.mul(1000).sub(amount1In.mul(3));
            require(
                balance0Adjusted.mul(balance1Adjusted) >=
                    uint256(_reserve0).mul(_reserve1).mul(1000**2),
                "Beamswap: 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
        );
    }
}


// File contracts/uniswapv2/BeamSwapFactory.sol

pragma solidity =0.5.16;
contract BeamSwapFactory is IBeamSwapFactory {
    bytes32 public constant INIT_CODE_PAIR_HASH =
        keccak256(abi.encodePacked(type(BeamSwapPair).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,
        uint256
    );

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

    function allPairsLength() external view returns (uint256) {
        return allPairs.length;
    }

    function createPair(address tokenA, address tokenB)
        external
        returns (address pair)
    {
        require(tokenA != tokenB, "BeamSwap: IDENTICAL_ADDRESSES");
        (address token0, address token1) = tokenA < tokenB
            ? (tokenA, tokenB)
            : (tokenB, tokenA);
        require(token0 != address(0), "BeamSwap: ZERO_ADDRESS");
        require(getPair[token0][token1] == address(0), "BeamSwap: PAIR_EXISTS"); // single check is sufficient
        bytes memory bytecode = type(BeamSwapPair).creationCode;
        bytes32 salt = keccak256(abi.encodePacked(token0, token1));
        assembly {
            pair := create2(0, add(bytecode, 32), mload(bytecode), salt)
        }
        IBeamSwapPair(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, "BeamSwap: FORBIDDEN");
        feeTo = _feeTo;
    }

    function setFeeToSetter(address _feeToSetter) external {
        require(msg.sender == feeToSetter, "BeamSwap: 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)

0000000000000000000000000a68f81fe8c23cf19fd0f90be3734f68ff2ef451

-----Decoded View---------------
Arg [0] : _feeToSetter (address): 0x0a68f81fe8c23cf19fd0f90be3734f68ff2ef451

-----Encoded View---------------
1 Constructor Arguments found :
Arg [0] : 0000000000000000000000000a68f81fe8c23cf19fd0f90be3734f68ff2ef451


Deployed ByteCode Sourcemap

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Swarm Source

bzzr://5178d0a5af96eed2982527bb3afccbd385d59ef74199854ebea21f23e67f9db0
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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