Contract 0x68A384D826D3678f78BB9FB1533c7E9577dACc0E

Txn Hash Method
Block
From
To
Value [Txn Fee]
0xaa526128fe59615afe1ceec703d8e24583e9a0e79da0c481396c90228d2e4b8fCreate Pair28014732023-01-24 21:46:06248 days 12 hrs ago0x77d7249a9daa7da214a97fd5523f8c423a9ed63c IN  StellaSwap: Factory V10 GLMR0.359890674
0x7ab9dc4fa343a698d2c5b18d1b67b678c0ec05066be3fb7d8d8c8164b83a5023Create Pair27974412023-01-24 8:04:48249 days 1 hr ago0x1bfbc0c91287de1a13f164bbbde61d1c959b9a59 IN  StellaSwap: Factory V10 GLMR0.359889664
0xce3c81458f5c84a1650417a88037ef63f98fe77791867de9f4293a82891bb515Create Pair27973762023-01-24 7:51:24249 days 2 hrs ago0x1bfbc0c91287de1a13f164bbbde61d1c959b9a59 IN  StellaSwap: Factory V10 GLMR0.359890674
0x8b59d62937632e6a6ead896601728d8133e909af24861c7f533815725008dfc0Create Pair27964452023-01-24 4:43:06249 days 5 hrs ago0x1bfbc0c91287de1a13f164bbbde61d1c959b9a59 IN  StellaSwap: Factory V10 GLMR0.359888452
0x3ebcd2de61f9113bd0110c0beaca1f2ae12dfba75d9d4785b525d7dc9404c1f7Create Pair22475502022-11-07 16:30:00326 days 17 hrs agoCougarSwap: Deployer IN  StellaSwap: Factory V10 GLMR0.359607874
0x3cbe24409c2c2439b311dd24e793eac695b9249050ffa7275404218f03261278Create Pair22475492022-11-07 16:29:48326 days 17 hrs agoCougarSwap: Deployer IN  StellaSwap: Factory V10 GLMR0.359607874
0xdd04ef68aafd9719b9121ea29a55232255433b29ccfd2bb9e14e895c16b5b9edSet Fee To Sette...5691572022-03-09 21:36:12569 days 12 hrs ago0xea91b5e687a490380c52d264d5d36558d79f4188 IN  StellaSwap: Factory V10 GLMR0.002477425
0x158ad06c440bc5eb5a0460b49a382fa34fbd4e25f031bb15906c9f74ec221224Create Pair4679372022-02-23 8:45:42584 days 1 hr agoCougarSwap: Deployer IN  StellaSwap: Factory V10 GLMR0.3560464
0xcef3bf530447fca11ca2a5b4b08656436907529ac93bd6caf0d2e9f2207eded4Create Pair4679292022-02-23 8:43:12584 days 1 hr agoCougarSwap: Deployer IN  StellaSwap: Factory V10 GLMR0.3560464
0xeb10b4c9afc6ea6fb8eeb1ec58bd6b76e5660773de6050edbdc5d06490fee144Create Pair4200192022-02-16 8:37:48591 days 1 hr agoCougarSwap: Deployer IN  StellaSwap: Factory V10 GLMR0.3560464
0xe095464f6e80d46b49732c4f7ab627e62ae02cd490f8dc2c2a26dab4e8f6ee87Create Pair4200092022-02-16 8:35:42591 days 1 hr agoCougarSwap: Deployer IN  StellaSwap: Factory V10 GLMR0.3560464
0x0066bc5a03f59549bbd27a0d6872a953c76ab2770df7630bff511826b96d6f67Create Pair2717282022-01-25 20:15:36612 days 13 hrs ago0x64ae4e563862a8728d92136d8a8a8ac7f342cb87 IN  StellaSwap: Factory V10 GLMR0.3551264
0x80ebb20096fe0f59367dc3ae1f4bc9bd4a6367e1df031b7a8f320ec17c77824aCreate Pair2717122022-01-25 20:12:06612 days 13 hrs ago0x64ae4e563862a8728d92136d8a8a8ac7f342cb87 IN  StellaSwap: Factory V10 GLMR0.3551274
0xd1d8eee0ae692901b5cd6b72e3a960f259c27596031fe325e87f487b3775faddCreate Pair2706562022-01-25 16:30:36612 days 17 hrs ago0xafa4141e10707a095a88c4097df7cbaba5714ba5 IN  StellaSwap: Factory V10 GLMR0.3551274
0x91ba7b37a5740c45dcc699bbeddd52a2b9f4b33bc25381dc5a01e16dec985003Create Pair2706402022-01-25 16:27:06612 days 17 hrs ago0xafa4141e10707a095a88c4097df7cbaba5714ba5 IN  StellaSwap: Factory V10 GLMR0.3551264
0x768f58c502772926e65e6f75d0996468ff0c1697804ff0b3333f801d71dfddbaSet Fee To1741882022-01-11 20:45:18626 days 13 hrs ago0xea91b5e687a490380c52d264d5d36558d79f4188 IN  StellaSwap: Factory V10 GLMR0.0043491
0x0918a5a7bfb30022292cb378e1f25976cd7f98bffe7f1b9e9011f59e06cdad1f0x608060401738142022-01-11 19:29:06626 days 14 hrs agoStellaSwap: Deployer IN  Create: StellaSwapV2Factory0 GLMR0.4766419
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OVERVIEW

Factory contract of StellaSwap's Standard AMM.

Latest 25 internal transaction
Parent Txn Hash Block From To Value
0xde5a107971312af6e0a0f0be12fec861ed923c5ab3119b456f26a338e84dfed945343272023-09-28 19:09:061 day 14 hrs ago StellaSwap: Factory V1  Contract Creation0 GLMR
0x02b02cab35da3b328d936498c5546f0b7d64379beab057c027f51b67f8cbf1ed45343222023-09-28 19:08:001 day 14 hrs ago StellaSwap: Factory V1  Contract Creation0 GLMR
0x29213854358cb49f8e89bcddd2545034958dd69d46b68c07c7eb1b4b6f23fe3945312622023-09-28 8:48:182 days 1 hr ago StellaSwap: Factory V1  Contract Creation0 GLMR
0xcc51bd0c92a240cd95bb4d2dc2ff2a578d9aae9188e6fe001273c20483b5fc2745275282023-09-27 20:13:362 days 13 hrs ago StellaSwap: Factory V1  Contract Creation0 GLMR
0xd88d55d71dc73d22eecadbce3c16b76d4e085a1f7588a7db201b1ddbec92848e45275182023-09-27 20:11:362 days 13 hrs ago StellaSwap: Factory V1  Contract Creation0 GLMR
0xa9f9ad772482dfa13106aeae65027e47c4d4ad1c62428b436af3561975e2891745243352023-09-27 9:26:483 days 37 mins ago StellaSwap: Factory V1  Contract Creation0 GLMR
0xb7eabc4ec34963d7b046e99e06aa13ff7b254a5ec214847429a5e93b4dc57de145243172023-09-27 9:23:123 days 40 mins ago StellaSwap: Factory V1  Contract Creation0 GLMR
0xaa592f6aa66a0e6e41182d7e1bb24418d0357d340c00b2ac1c8a297e0488c6d945242632023-09-27 9:12:243 days 51 mins ago StellaSwap: Factory V1  Contract Creation0 GLMR
0xd12164d6de5951eb95670c4132ccf8918c907099e2c204973649764bd982c9d945133212023-09-25 20:09:004 days 13 hrs ago StellaSwap: Factory V1  Contract Creation0 GLMR
0x2ff9775ad42aca11a421e489577d3e241f3ce798519612b68222a452d1ae34be45133112023-09-25 20:07:004 days 13 hrs ago StellaSwap: Factory V1  Contract Creation0 GLMR
0xa215ffffdbb0ec1d9754ecc3be9e714b126829d2a3da1f256b8527e8d61b807a45099742023-09-25 8:46:245 days 1 hr ago StellaSwap: Factory V1  Contract Creation0 GLMR
0x8f0f4ff7efff1e89e0f3784a15ba570fba69ed10cdf0601348b1ddb8d9d95c1f45099522023-09-25 8:42:005 days 1 hr ago StellaSwap: Factory V1  Contract Creation0 GLMR
0x3cfa22a2b0243a17262632861302c3298cc230986dce5afbc9302eba55637c9545099482023-09-25 8:41:125 days 1 hr ago StellaSwap: Factory V1  Contract Creation0 GLMR
0x3e875fa03fb2a616dc690c1897ec3cbc9e108d0742cabe5ff215db210b5eae2e44498232023-09-16 21:11:1213 days 12 hrs ago StellaSwap: Factory V1  Contract Creation0 GLMR
0xd6c1b0ab5c77dc83bbe81b0944f5a7b0e890611f1af501e84af22a12a4e1569144156592023-09-12 1:59:0018 days 8 hrs ago StellaSwap: Factory V1  Contract Creation0 GLMR
0x0d3d720c69dd9c4f83546b260e87e8b785fbb6e93be6489dbb947d68f9c4e09844156542023-09-12 1:58:0018 days 8 hrs ago StellaSwap: Factory V1  Contract Creation0 GLMR
0x76e4609fc14f4f48fd3be8381ae121578970b5637d0d2113ebe1385ec4c78ecb43030572023-08-27 6:08:4234 days 3 hrs ago StellaSwap: Factory V1  Contract Creation0 GLMR
0x1497002d675276701b7fa0da3bec2ff8de82c01d7dc52af40ffc267fee137c9441288032023-08-02 19:50:4258 days 14 hrs ago StellaSwap: Factory V1  Contract Creation0 GLMR
0x969d91ed919dd10696d0f17911f0f169403a32994302f515972382496d7358d341288002023-08-02 19:50:0658 days 14 hrs ago StellaSwap: Factory V1  Contract Creation0 GLMR
0xad04dfa894db9898b08aaea30702142e03b03333239e6e8103f417a0c5c8a08e40905582023-07-28 11:22:0663 days 22 hrs ago StellaSwap: Factory V1  Contract Creation0 GLMR
0xb7948e892a2652bdc434a12bf8712bf3fd0858b10d11a463c70ecd91302feab840905292023-07-28 11:16:1863 days 22 hrs ago StellaSwap: Factory V1  Contract Creation0 GLMR
0x186202526dde28cc32643ebdb4afad33c9aec46aea9e1b2911c7bfedc014e4ba40900502023-07-28 9:39:3664 days 24 mins ago StellaSwap: Factory V1  Contract Creation0 GLMR
0x008440c3e88b69dfe234e5f3ec70bce217f4e599523134c612fb754e87d5974440170962023-07-18 3:09:1274 days 6 hrs ago StellaSwap: Factory V1  Contract Creation0 GLMR
0xfd9ac17994b1ca87ffec325ff1a03150c6fa4b60cec7a439e6b882f3a84355cd40170752023-07-18 3:05:0074 days 6 hrs ago StellaSwap: Factory V1  Contract Creation0 GLMR
0xdea72c0f8e0a19ba72d8826ce482f9c0a2141ab28083ca2ec63f9e51d37326a140170552023-07-18 3:00:5474 days 7 hrs ago StellaSwap: Factory V1  Contract Creation0 GLMR
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Contract Source Code Verified (Exact Match)

Contract Name:
StellaSwapV2Factory

Compiler Version
v0.6.12+commit.27d51765

Optimization Enabled:
No with 200 runs

Other Settings:
default evmVersion, None license

Contract Source Code (Solidity)

/**
 *Submitted for verification at moonbeam.moonscan.io on 2022-03-10
*/

// SPDX-License-Identifier: GPL-3.0

pragma solidity >=0.5.0;

interface IStellaSwapV2Factory {
    event PairCreated(address indexed token0, address indexed token1, address pair, uint);

    function feeTo() external view returns (address);
    function feeToSetter() external view returns (address);
    function migrator() 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;
    function setMigrator(address) external;
}


// File contracts/amm/libraries/SafeMath.sol



pragma solidity =0.6.12;

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

library SafeMathStellaSwap {
    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/amm/StellaSwapV2ERC20.sol



pragma solidity =0.6.12;

contract StellaSwapV2ERC20 {
    using SafeMathStellaSwap for uint;

    string public constant name = 'Stella LP';
    string public constant symbol = 'STELLA 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, 'StellaSwapV2: 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, 'StellaSwapV2: INVALID_SIGNATURE');
        _approve(owner, spender, value);
    }
}


// File contracts/amm/libraries/Math.sol



pragma solidity =0.6.12;

// 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/amm/libraries/UQ112x112.sol



pragma solidity =0.6.12;

// 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/amm/interfaces/IERC20.sol



pragma solidity >=0.5.0;

interface IERC20StellaSwap {
    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);
}


// File contracts/amm/interfaces/IStellaSwapV2Callee.sol



pragma solidity >=0.5.0;

interface IStellaSwapV2Callee {
    function stellaswapV2Call(address sender, uint amount0, uint amount1, bytes calldata data) external;
}


// File contracts/amm/StellaSwapV2Pair.sol



pragma solidity =0.6.12;






interface IMigrator {
    // Return the desired amount of liquidity token that the migrator wants.
    function desiredLiquidity() external view returns (uint256);
}

contract StellaSwapV2Pair is StellaSwapV2ERC20 {
    using SafeMathStellaSwap  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

    uint32 public swapFee = 25; // uses 0.25% default
    uint32 public devFee = 5; // uses 0.05% default from swap fee

    uint private unlocked = 1;
    modifier lock() {
        require(unlocked == 1, 'StellaSwapV2: 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))), 'StellaSwapV2: 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, 'StellaSwapV2: FORBIDDEN'); // sufficient check
        token0 = _token0;
        token1 = _token1;
    }

    function setSwapFee(uint32 _swapFee) external {
        require(_swapFee > 0, "StellaSwapV2: lower then 0");
        require(msg.sender == factory, 'StellaSwapV2: FORBIDDEN');
        require(_swapFee <= 1000, 'StellaSwapV2: FORBIDDEN_FEE');
        swapFee = _swapFee;
    }
    
    function setDevFee(uint32 _devFee) external {
        require(_devFee > 0, "StellaSwapV2: lower then 0");
        require(msg.sender == factory, 'StellaSwapV2: FORBIDDEN');
        require(_devFee <= 500, 'StellaSwapV2: FORBIDDEN_FEE');
        devFee = _devFee;
    }

    // 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), 'StellaSwapV2: 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 1/5th of the growth in sqrt(k)
    function _mintFee(uint112 _reserve0, uint112 _reserve1) private returns (bool feeOn) {
        address feeTo = IStellaSwapV2Factory(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(devFee).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 = IERC20StellaSwap(token0).balanceOf(address(this));
        uint balance1 = IERC20StellaSwap(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) {
            address migrator = IStellaSwapV2Factory(factory).migrator();
            if (msg.sender == migrator) {
                liquidity = IMigrator(migrator).desiredLiquidity();
                require(liquidity > 0 && liquidity != uint256(-1), "Bad desired liquidity");
            } else {
                require(migrator == address(0), "Must not have migrator");
                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, 'StellaSwapV2: 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 = IERC20StellaSwap(_token0).balanceOf(address(this));
        uint balance1 = IERC20StellaSwap(_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, 'StellaSwapV2: INSUFFICIENT_LIQUIDITY_BURNED');
        _burn(address(this), liquidity);
        _safeTransfer(_token0, to, amount0);
        _safeTransfer(_token1, to, amount1);
        balance0 = IERC20StellaSwap(_token0).balanceOf(address(this));
        balance1 = IERC20StellaSwap(_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, 'StellaSwapV2: INSUFFICIENT_OUTPUT_AMOUNT');
        (uint112 _reserve0, uint112 _reserve1,) = getReserves(); // gas savings
        require(amount0Out < _reserve0 && amount1Out < _reserve1, 'StellaSwapV2: 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, 'StellaSwapV2: 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) IStellaSwapV2Callee(to).stellaswapV2Call(msg.sender, amount0Out, amount1Out, data);
        balance0 = IERC20StellaSwap(_token0).balanceOf(address(this));
        balance1 = IERC20StellaSwap(_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, 'StellaSwapV2: INSUFFICIENT_INPUT_AMOUNT');
        { // scope for reserve{0,1}Adjusted, avoids stack too deep errors
        uint _swapFee = swapFee;
        uint balance0Adjusted = balance0.mul(10000).sub(amount0In.mul(_swapFee));
        uint balance1Adjusted = balance1.mul(10000).sub(amount1In.mul(_swapFee));

        require(balance0Adjusted.mul(balance1Adjusted) >= uint(_reserve0).mul(_reserve1).mul(10000**2), 'StellaSwapV2: 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, IERC20StellaSwap(_token0).balanceOf(address(this)).sub(reserve0));
        _safeTransfer(_token1, to, IERC20StellaSwap(_token1).balanceOf(address(this)).sub(reserve1));
    }

    // force reserves to match balances
    function sync() external lock {
        _update(IERC20StellaSwap(token0).balanceOf(address(this)), IERC20StellaSwap(token1).balanceOf(address(this)), reserve0, reserve1);
    }
}


// File contracts/amm/StellaSwapV2Factory.sol



pragma solidity =0.6.12;


contract StellaSwapV2Factory is IStellaSwapV2Factory {
    bytes32 public constant INIT_CODE_PAIR_HASH = keccak256(abi.encodePacked(type(StellaSwapV2Pair).creationCode));
    address public override feeTo;
    address public override feeToSetter;
    address public override migrator;

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

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

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

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

    function pairCodeHash() external pure returns (bytes32) {
        return keccak256(type(StellaSwapV2Pair).creationCode);
    }

    function createPair(address tokenA, address tokenB) external override returns (address pair) {
        require(tokenA != tokenB, 'StellaSwapV2: IDENTICAL_ADDRESSES');
        (address token0, address token1) = tokenA < tokenB ? (tokenA, tokenB) : (tokenB, tokenA);
        require(token0 != address(0), 'StellaSwapV2: ZERO_ADDRESS');
        require(getPair[token0][token1] == address(0), 'StellaSwapV2: PAIR_EXISTS'); // single check is sufficient
        bytes memory bytecode = type(StellaSwapV2Pair).creationCode;
        bytes32 salt = keccak256(abi.encodePacked(token0, token1));
        assembly {
            pair := create2(0, add(bytecode, 32), mload(bytecode), salt)
        }
        StellaSwapV2Pair(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 override {
        require(msg.sender == feeToSetter, 'StellaSwapV2: FORBIDDEN');
        feeTo = _feeTo;
    }

    function setMigrator(address _migrator) external override {
        require(msg.sender == feeToSetter, 'StellaSwapV2: FORBIDDEN');
        migrator = _migrator;
    }

    function setFeeToSetter(address _feeToSetter) external override {
        require(msg.sender == feeToSetter, 'StellaSwapV2: FORBIDDEN');
        feeToSetter = _feeToSetter;
    }

    function setDevFee(address _pair, uint8 _devFee) external {
        require(msg.sender == feeToSetter, 'StellaSwapV2: FORBIDDEN');
        require(_devFee > 0, 'StellaSwapV2: FORBIDDEN_FEE');
        StellaSwapV2Pair(_pair).setDevFee(_devFee);
    }
    
    function setSwapFee(address _pair, uint32 _swapFee) external {
        require(msg.sender == feeToSetter, 'StellaSwapV2: FORBIDDEN');
        StellaSwapV2Pair(_pair).setSwapFee(_swapFee);
    }

}

Contract ABI

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

000000000000000000000000ea91b5e687a490380c52d264d5d36558d79f4188

-----Decoded View---------------
Arg [0] : _feeToSetter (address): 0xea91b5e687a490380c52d264d5d36558d79f4188

-----Encoded View---------------
1 Constructor Arguments found :
Arg [0] : 000000000000000000000000ea91b5e687a490380c52d264d5d36558d79f4188


Deployed ByteCode Sourcemap

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Swarm Source

ipfs://edabe258761e7efc8e87275bc73691efbeb3151d48814889c9967789c3c2d846
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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