Contract 0xfc77e39de40e54f820e313039207dc850e4c9e60 13

 
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0x0f451c29697f03a524b8b8d8e60b6ab3ce96b0789716df31ce3d9ff5ac9c5fdaApprove1160240592024-02-11 10:21:3514 days 15 hrs ago0x3e1422e0cf8493b48a10a8e55c26fd2968ab75b3 IN  0xfc77e39de40e54f820e313039207dc850e4c9e600 ETH0.0000421909470.002599294
0xccc4a92ba7ad597421e4c19d44887a55e307d91b85af632f5b84b2350ea45abdApprove1155285552024-01-30 23:04:4726 days 2 hrs ago0xc1991c8bda29507991eeb230ff2063c2ea74a34c IN  0xfc77e39de40e54f820e313039207dc850e4c9e600 ETH0.0000396386140.103873065
0xf7468fffc67cf5a706ba2320333e666c7a45be7def6e748b49370f000be16f5eApprove1155283202024-01-30 22:56:5726 days 3 hrs ago0xc1991c8bda29507991eeb230ff2063c2ea74a34c IN  0xfc77e39de40e54f820e313039207dc850e4c9e600 ETH0.0000414891120.099969905
0xebeb70a26f5de026af0cf9914d33fcfdaa6f6d42e264796ffcb507d720b8f3c4Approve1155283112024-01-30 22:56:3926 days 3 hrs ago0xc1991c8bda29507991eeb230ff2063c2ea74a34c IN  0xfc77e39de40e54f820e313039207dc850e4c9e600 ETH0.0000381117460.101280176
0x3ba5856a78f48086940806f894195d2cac8e1b7dc0ceef5a613a787af346a53bApprove1155283042024-01-30 22:56:2526 days 3 hrs ago0xc1991c8bda29507991eeb230ff2063c2ea74a34c IN  0xfc77e39de40e54f820e313039207dc850e4c9e600 ETH0.0000390101660.101235164
0x6e7edd920176fd01deaaf7ffecb09a121fa57976be900956794862e2f2bb355cApprove1155280122024-01-30 22:46:4126 days 3 hrs ago0xc1991c8bda29507991eeb230ff2063c2ea74a34c IN  0xfc77e39de40e54f820e313039207dc850e4c9e600 ETH0.0000405116540.101804313
0x005094abff8da89cfe77ad63421e62085437df025a61742bed431e3ff65b1b69Approve1150975802024-01-20 23:38:5736 days 2 hrs ago0xe8b8eba010a2b8c2c0f24bd88a6dfc689d57a72a IN  0xfc77e39de40e54f820e313039207dc850e4c9e600 ETH0.0000223990480.004722027
0x64d6d59f353bd1994cb0c3807a544b1fb9af9a0608a04dc34cc87f152cffbbe2Approve1150463442024-01-19 19:11:0537 days 6 hrs ago0x1706f86e1798e341944746fe336d63b60e1d0ccb IN  0xfc77e39de40e54f820e313039207dc850e4c9e600 ETH0.0000535037090.005134293
0xefa111af554f6c3452b89a6ec3ecec84609d2e83bcaaef14ddbe172fda2472c0Approve1149191052024-01-16 20:29:4740 days 5 hrs ago0x15f490fe47a84a50c75b0cc4c1f4b17b7188306d IN  0xfc77e39de40e54f820e313039207dc850e4c9e600 ETH0.0000588574670.098648015
0x6e8e30d168227405ce9648250efa11cd82be7e1c4a4d794eef73373dff59341cApprove1149079582024-01-16 14:18:1340 days 11 hrs ago0x63155498a06d3f058ecd453c5a0d94fb3a11ea4c IN  0xfc77e39de40e54f820e313039207dc850e4c9e600 ETH0.0000781501220.017966323
0xb8f5db6e0d066714b1bcb605c5217d00f1267653c089b15bd360ac766df62c66Approve1142532032024-01-01 10:33:0355 days 15 hrs ago0x0ee951bc9d1b10afbf073bf246cce7d14346f652 IN  0xfc77e39de40e54f820e313039207dc850e4c9e600 ETH0.0000184655220.1083683
0xbd68ff6e9cf837127d0e751e41d01c45981c6fb62a0aa07fabc5ece0e610774eApprove1139945302023-12-26 10:50:3761 days 15 hrs ago0x5c65cfa87605a767af7dcbe97c097a394c307790 IN  0xfc77e39de40e54f820e313039207dc850e4c9e600 ETH0.0000287619510.007411779
0x5a7fa1db1ca1c1a3ef0efad759993713476399bbf6e0e09bdfbf8a75e50a0708Approve1139945242023-12-26 10:50:2561 days 15 hrs ago0x5c65cfa87605a767af7dcbe97c097a394c307790 IN  0xfc77e39de40e54f820e313039207dc850e4c9e600 ETH0.0000288924160.007161566
0x811b914af5b3ae57a698ea9e3764a7fa7ea9bba1d3990ba2eb58f84cd93b76fdApprove1139945182023-12-26 10:50:1361 days 15 hrs ago0x5c65cfa87605a767af7dcbe97c097a394c307790 IN  0xfc77e39de40e54f820e313039207dc850e4c9e600 ETH0.0000293146380.007714753
0xe3efe284f743a7cd28a6933151d44fe3e4d9460e6f5ca9da105b60acddc700e1Approve1138875532023-12-23 23:24:4364 days 2 hrs ago0x9dd711b0cb4430f429231e5cb9940dbd1952a36f IN  0xfc77e39de40e54f820e313039207dc850e4c9e600 ETH0.0000319098850.006601235
0xb687760483e04f5de701f25af565d096edbbe4af71f91000d789d6be4ef974bcApprove1138875412023-12-23 23:24:1964 days 2 hrs ago0x9dd711b0cb4430f429231e5cb9940dbd1952a36f IN  0xfc77e39de40e54f820e313039207dc850e4c9e600 ETH0.0000305841670.005311435
0xda28f01c2fda4ac950890fbb7ddaa96fa082ac5c220ab56fd5b0462cf6cb28d4Approve1138875072023-12-23 23:23:1164 days 2 hrs ago0x9dd711b0cb4430f429231e5cb9940dbd1952a36f IN  0xfc77e39de40e54f820e313039207dc850e4c9e600 ETH0.0000321550810.005487766
0x846ddeff6105f92162f2db1d8e1e6f67b8bcd673ed11a90ae8b4de7c804642f2Approve1136201442023-12-17 18:51:0570 days 7 hrs ago0x1706f86e1798e341944746fe336d63b60e1d0ccb IN  0xfc77e39de40e54f820e313039207dc850e4c9e600 ETH0.0000524959250.0056654
0xaa97c4ecb57b99762dbab242200baa468a62c110123614a29471317baf9e640aApprove1129536642023-12-02 8:35:0585 days 17 hrs ago0xd5c4063dbe1f504126d052d73422ad3830b87d79 IN  0xfc77e39de40e54f820e313039207dc850e4c9e600 ETH0.000049990240.009563598
0xd7e6288c36214381f9a52cf45332f28fb72612aad7320e74191787441a0323c4Approve1129536562023-12-02 8:34:4985 days 17 hrs ago0xd5c4063dbe1f504126d052d73422ad3830b87d79 IN  0xfc77e39de40e54f820e313039207dc850e4c9e600 ETH0.0000530267730.009786328
0x88fa116154bfd0c029b3682717ce93d3568358d5cda8c7a4a675eb89af050db5Approve1129145312023-12-01 10:50:3986 days 15 hrs ago0x49f4d0222c880d4780b636662f5f18f572f2f88a IN  0xfc77e39de40e54f820e313039207dc850e4c9e600 ETH0.0000577780930.014241991
0x2c7042a9599c08d04fb9226051436e45f5f998c2e5fd8ee911da38ca97b10787Approve1128289992023-11-29 11:19:3588 days 14 hrs ago0x999404e0a630c2a1bf3f7bfbae5c1addf893f2c4 IN  0xfc77e39de40e54f820e313039207dc850e4c9e600 ETH0.0000484397090.009450415
0x0da8701785f8c3dbf6baeb507de5a319c54e754598b1558150001c1d5f53aff3Approve1128289992023-11-29 11:19:3588 days 14 hrs ago0x999404e0a630c2a1bf3f7bfbae5c1addf893f2c4 IN  0xfc77e39de40e54f820e313039207dc850e4c9e600 ETH0.0000484397090.009450415
0xac4a24f46d60faa3996f8bf61ea8ead35253db8bb9da0722250735ff9c90fbffApprove1128289992023-11-29 11:19:3588 days 14 hrs ago0x999404e0a630c2a1bf3f7bfbae5c1addf893f2c4 IN  0xfc77e39de40e54f820e313039207dc850e4c9e600 ETH0.0000484398530.009456348
0xb0099e6a7c187603f079eeb285803429b20c5bee785b02b7715717dc4bf05362Approve1124891532023-11-21 14:31:2396 days 11 hrs ago0xf05d7df85b53049d16484d4a3201990470c1184a IN  0xfc77e39de40e54f820e313039207dc850e4c9e600 ETH0.0000601705250.009754991
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Latest 25 internal transaction
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0x9f3f63b35ee810ce0083af2d1c05580d4b119e6dbfe097aea351c9f4455e3ef91075487202023-07-30 5:50:17210 days 20 hrs ago 0xfc77e39de40e54f820e313039207dc850e4c9e60 Layer2DAO: L2DAO Token0 ETH
0x9f3f63b35ee810ce0083af2d1c05580d4b119e6dbfe097aea351c9f4455e3ef91075487202023-07-30 5:50:17210 days 20 hrs ago 0xfc77e39de40e54f820e313039207dc850e4c9e60 Optimism: OP Token0 ETH
0x9f3f63b35ee810ce0083af2d1c05580d4b119e6dbfe097aea351c9f4455e3ef91075487202023-07-30 5:50:17210 days 20 hrs ago 0xfc77e39de40e54f820e313039207dc850e4c9e60 Layer2DAO: L2DAO Token0 ETH
0x9f3f63b35ee810ce0083af2d1c05580d4b119e6dbfe097aea351c9f4455e3ef91075487202023-07-30 5:50:17210 days 20 hrs ago 0xfc77e39de40e54f820e313039207dc850e4c9e60 Velodrome Finance: Pair Factory0 ETH
0x9f3f63b35ee810ce0083af2d1c05580d4b119e6dbfe097aea351c9f4455e3ef91075487202023-07-30 5:50:17210 days 20 hrs ago 0xfc77e39de40e54f820e313039207dc850e4c9e60 Layer2DAO: L2DAO Token0 ETH
0x9f3f63b35ee810ce0083af2d1c05580d4b119e6dbfe097aea351c9f4455e3ef91075487202023-07-30 5:50:17210 days 20 hrs ago 0xfc77e39de40e54f820e313039207dc850e4c9e60 Optimism: OP Token0 ETH
0x9f3f63b35ee810ce0083af2d1c05580d4b119e6dbfe097aea351c9f4455e3ef91075487202023-07-30 5:50:17210 days 20 hrs ago 0xfc77e39de40e54f820e313039207dc850e4c9e60 Optimism: OP Token0 ETH
0x9f3f63b35ee810ce0083af2d1c05580d4b119e6dbfe097aea351c9f4455e3ef91075487202023-07-30 5:50:17210 days 20 hrs ago 0xfc77e39de40e54f820e313039207dc850e4c9e60 Velodrome Finance: Pair Factory0 ETH
0x9f3f63b35ee810ce0083af2d1c05580d4b119e6dbfe097aea351c9f4455e3ef91075487202023-07-30 5:50:17210 days 20 hrs ago 0xc160e4fe967f8ada7b58d9c578267ebbec1e7a63 0xfc77e39de40e54f820e313039207dc850e4c9e600 ETH
0x9f3f63b35ee810ce0083af2d1c05580d4b119e6dbfe097aea351c9f4455e3ef91075487202023-07-30 5:50:17210 days 20 hrs ago 0xc160e4fe967f8ada7b58d9c578267ebbec1e7a63 0xfc77e39de40e54f820e313039207dc850e4c9e600 ETH
0x13d90eabf42b0d56572547bf9b44efcc9ba72980ac87fc55793ee1f2bd0984d41075479242023-07-30 5:23:45210 days 20 hrs ago 0xfc77e39de40e54f820e313039207dc850e4c9e60 Layer2DAO: L2DAO Token0 ETH
0x13d90eabf42b0d56572547bf9b44efcc9ba72980ac87fc55793ee1f2bd0984d41075479242023-07-30 5:23:45210 days 20 hrs ago 0xfc77e39de40e54f820e313039207dc850e4c9e60 Optimism: OP Token0 ETH
0x13d90eabf42b0d56572547bf9b44efcc9ba72980ac87fc55793ee1f2bd0984d41075479242023-07-30 5:23:45210 days 20 hrs ago 0xfc77e39de40e54f820e313039207dc850e4c9e60 Layer2DAO: L2DAO Token0 ETH
0x13d90eabf42b0d56572547bf9b44efcc9ba72980ac87fc55793ee1f2bd0984d41075479242023-07-30 5:23:45210 days 20 hrs ago 0xfc77e39de40e54f820e313039207dc850e4c9e60 Velodrome Finance: Pair Factory0 ETH
0x13d90eabf42b0d56572547bf9b44efcc9ba72980ac87fc55793ee1f2bd0984d41075479242023-07-30 5:23:45210 days 20 hrs ago 0xfc77e39de40e54f820e313039207dc850e4c9e60 Layer2DAO: L2DAO Token0 ETH
0x13d90eabf42b0d56572547bf9b44efcc9ba72980ac87fc55793ee1f2bd0984d41075479242023-07-30 5:23:45210 days 20 hrs ago 0xfc77e39de40e54f820e313039207dc850e4c9e60 Optimism: OP Token0 ETH
0x13d90eabf42b0d56572547bf9b44efcc9ba72980ac87fc55793ee1f2bd0984d41075479242023-07-30 5:23:45210 days 20 hrs ago 0xfc77e39de40e54f820e313039207dc850e4c9e60 Optimism: OP Token0 ETH
0x13d90eabf42b0d56572547bf9b44efcc9ba72980ac87fc55793ee1f2bd0984d41075479242023-07-30 5:23:45210 days 20 hrs ago 0xfc77e39de40e54f820e313039207dc850e4c9e60 Velodrome Finance: Pair Factory0 ETH
0x13d90eabf42b0d56572547bf9b44efcc9ba72980ac87fc55793ee1f2bd0984d41075479242023-07-30 5:23:45210 days 20 hrs ago 0xc160e4fe967f8ada7b58d9c578267ebbec1e7a63 0xfc77e39de40e54f820e313039207dc850e4c9e600 ETH
0x13d90eabf42b0d56572547bf9b44efcc9ba72980ac87fc55793ee1f2bd0984d41075479242023-07-30 5:23:45210 days 20 hrs ago 0xc160e4fe967f8ada7b58d9c578267ebbec1e7a63 0xfc77e39de40e54f820e313039207dc850e4c9e600 ETH
0x299122a3a56d065dfad42aabbb01a141bc25ae0d8e38cb3803a8677bdab1648c1075477342023-07-30 5:17:25210 days 20 hrs ago 0xfc77e39de40e54f820e313039207dc850e4c9e60 Layer2DAO: L2DAO Token0 ETH
0x299122a3a56d065dfad42aabbb01a141bc25ae0d8e38cb3803a8677bdab1648c1075477342023-07-30 5:17:25210 days 20 hrs ago 0xfc77e39de40e54f820e313039207dc850e4c9e60 Optimism: OP Token0 ETH
0x299122a3a56d065dfad42aabbb01a141bc25ae0d8e38cb3803a8677bdab1648c1075477342023-07-30 5:17:25210 days 20 hrs ago 0xfc77e39de40e54f820e313039207dc850e4c9e60 Layer2DAO: L2DAO Token0 ETH
0x299122a3a56d065dfad42aabbb01a141bc25ae0d8e38cb3803a8677bdab1648c1075477342023-07-30 5:17:25210 days 20 hrs ago 0xfc77e39de40e54f820e313039207dc850e4c9e60 Velodrome Finance: Pair Factory0 ETH
0x299122a3a56d065dfad42aabbb01a141bc25ae0d8e38cb3803a8677bdab1648c1075477342023-07-30 5:17:25210 days 20 hrs ago 0xfc77e39de40e54f820e313039207dc850e4c9e60 Layer2DAO: L2DAO Token0 ETH
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Similar Match Source Code
This contract matches the deployed Bytecode of the Source Code for Contract 0x335bd4ffa921160fc86ce3843f80a9941e7456c6
The constructor portion of the code might be different and could alter the actual behaviour of the contract

Contract Name:
Pair

Compiler Version
v0.8.13+commit.abaa5c0e

Optimization Enabled:
Yes with 200 runs

Other Settings:
default evmVersion
File 1 of 8 : Pair.sol
// SPDX-License-Identifier: MIT
pragma solidity 0.8.13;

import 'contracts/libraries/Math.sol';
import 'contracts/interfaces/IERC20.sol';
import 'contracts/interfaces/IPair.sol';
import 'contracts/interfaces/IPairCallee.sol';
import 'contracts/factories/PairFactory.sol';
import 'contracts/PairFees.sol';

// The base pair of pools, either stable or volatile
contract Pair is IPair {

    string public name;
    string public symbol;
    uint8 public constant decimals = 18;

    // Used to denote stable or volatile pair, not immutable since construction happens in the initialize method for CREATE2 deterministic addresses
    bool public immutable stable;

    uint public totalSupply = 0;

    mapping(address => mapping (address => uint)) public allowance;
    mapping(address => uint) public balanceOf;

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

    uint internal constant MINIMUM_LIQUIDITY = 10**3;

    address public immutable token0;
    address public immutable token1;
    address public immutable fees;
    address immutable factory;

    // Structure to capture time period obervations every 30 minutes, used for local oracles
    struct Observation {
        uint timestamp;
        uint reserve0Cumulative;
        uint reserve1Cumulative;
    }

    // Capture oracle reading every 30 minutes
    uint constant periodSize = 1800;

    Observation[] public observations;

    uint internal immutable decimals0;
    uint internal immutable decimals1;

    uint public reserve0;
    uint public reserve1;
    uint public blockTimestampLast;

    uint public reserve0CumulativeLast;
    uint public reserve1CumulativeLast;

    // index0 and index1 are used to accumulate fees, this is split out from normal trades to keep the swap "clean"
    // this further allows LP holders to easily claim fees for tokens they have/staked
    uint public index0 = 0;
    uint public index1 = 0;

    // position assigned to each LP to track their current index0 & index1 vs the global position
    mapping(address => uint) public supplyIndex0;
    mapping(address => uint) public supplyIndex1;

    // tracks the amount of unclaimed, but claimable tokens off of fees for token0 and token1
    mapping(address => uint) public claimable0;
    mapping(address => uint) public claimable1;

    event Fees(address indexed sender, uint amount0, uint amount1);
    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(uint reserve0, uint reserve1);
    event Claim(address indexed sender, address indexed recipient, uint amount0, uint amount1);

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

    constructor() {
        factory = msg.sender;
        (address _token0, address _token1, bool _stable) = PairFactory(msg.sender).getInitializable();
        (token0, token1, stable) = (_token0, _token1, _stable);
        fees = address(new PairFees(_token0, _token1));
        if (_stable) {
            name = string(abi.encodePacked("StableV1 AMM - ", IERC20(_token0).symbol(), "/", IERC20(_token1).symbol()));
            symbol = string(abi.encodePacked("sAMM-", IERC20(_token0).symbol(), "/", IERC20(_token1).symbol()));
        } else {
            name = string(abi.encodePacked("VolatileV1 AMM - ", IERC20(_token0).symbol(), "/", IERC20(_token1).symbol()));
            symbol = string(abi.encodePacked("vAMM-", IERC20(_token0).symbol(), "/", IERC20(_token1).symbol()));
        }

        decimals0 = 10**IERC20(_token0).decimals();
        decimals1 = 10**IERC20(_token1).decimals();

        observations.push(Observation(block.timestamp, 0, 0));
    }

    // simple re-entrancy check
    uint internal _unlocked = 1;
    modifier lock() {
        require(_unlocked == 1);
        _unlocked = 2;
        _;
        _unlocked = 1;
    }

    function observationLength() external view returns (uint) {
        return observations.length;
    }

    function lastObservation() public view returns (Observation memory) {
        return observations[observations.length-1];
    }

    function metadata() external view returns (uint dec0, uint dec1, uint r0, uint r1, bool st, address t0, address t1) {
        return (decimals0, decimals1, reserve0, reserve1, stable, token0, token1);
    }

    function tokens() external view returns (address, address) {
        return (token0, token1);
    }

    // claim accumulated but unclaimed fees (viewable via claimable0 and claimable1)
    function claimFees() external returns (uint claimed0, uint claimed1) {
        _updateFor(msg.sender);

        claimed0 = claimable0[msg.sender];
        claimed1 = claimable1[msg.sender];

        if (claimed0 > 0 || claimed1 > 0) {
            claimable0[msg.sender] = 0;
            claimable1[msg.sender] = 0;

            PairFees(fees).claimFeesFor(msg.sender, claimed0, claimed1);

            emit Claim(msg.sender, msg.sender, claimed0, claimed1);
        }
    }

    // Accrue fees on token0
    function _update0(uint amount) internal {
        _safeTransfer(token0, fees, amount); // transfer the fees out to PairFees
        uint256 _ratio = amount * 1e18 / totalSupply; // 1e18 adjustment is removed during claim
        if (_ratio > 0) {
            index0 += _ratio;
        }
        emit Fees(msg.sender, amount, 0);
    }

    // Accrue fees on token1
    function _update1(uint amount) internal {
        _safeTransfer(token1, fees, amount);
        uint256 _ratio = amount * 1e18 / totalSupply;
        if (_ratio > 0) {
            index1 += _ratio;
        }
        emit Fees(msg.sender, 0, amount);
    }

    // this function MUST be called on any balance changes, otherwise can be used to infinitely claim fees
    // Fees are segregated from core funds, so fees can never put liquidity at risk
    function _updateFor(address recipient) internal {
        uint _supplied = balanceOf[recipient]; // get LP balance of `recipient`
        if (_supplied > 0) {
            uint _supplyIndex0 = supplyIndex0[recipient]; // get last adjusted index0 for recipient
            uint _supplyIndex1 = supplyIndex1[recipient];
            uint _index0 = index0; // get global index0 for accumulated fees
            uint _index1 = index1;
            supplyIndex0[recipient] = _index0; // update user current position to global position
            supplyIndex1[recipient] = _index1;
            uint _delta0 = _index0 - _supplyIndex0; // see if there is any difference that need to be accrued
            uint _delta1 = _index1 - _supplyIndex1;
            if (_delta0 > 0) {
                uint _share = _supplied * _delta0 / 1e18; // add accrued difference for each supplied token
                claimable0[recipient] += _share;
            }
            if (_delta1 > 0) {
                uint _share = _supplied * _delta1 / 1e18;
                claimable1[recipient] += _share;
            }
        } else {
            supplyIndex0[recipient] = index0; // new users are set to the default global state
            supplyIndex1[recipient] = index1;
        }
    }

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

    // update reserves and, on the first call per block, price accumulators
    function _update(uint balance0, uint balance1, uint _reserve0, uint _reserve1) internal {
        uint blockTimestamp = block.timestamp;
        uint timeElapsed = blockTimestamp - blockTimestampLast; // overflow is desired
        if (timeElapsed > 0 && _reserve0 != 0 && _reserve1 != 0) {
            reserve0CumulativeLast += _reserve0 * timeElapsed;
            reserve1CumulativeLast += _reserve1 * timeElapsed;
        }

        Observation memory _point = lastObservation();
        timeElapsed = blockTimestamp - _point.timestamp; // compare the last observation with current timestamp, if greater than 30 minutes, record a new event
        if (timeElapsed > periodSize) {
            observations.push(Observation(blockTimestamp, reserve0CumulativeLast, reserve1CumulativeLast));
        }
        reserve0 = balance0;
        reserve1 = balance1;
        blockTimestampLast = blockTimestamp;
        emit Sync(reserve0, reserve1);
    }

    // produces the cumulative price using counterfactuals to save gas and avoid a call to sync.
    function currentCumulativePrices() public view returns (uint reserve0Cumulative, uint reserve1Cumulative, uint blockTimestamp) {
        blockTimestamp = block.timestamp;
        reserve0Cumulative = reserve0CumulativeLast;
        reserve1Cumulative = reserve1CumulativeLast;

        // if time has elapsed since the last update on the pair, mock the accumulated price values
        (uint _reserve0, uint _reserve1, uint _blockTimestampLast) = getReserves();
        if (_blockTimestampLast != blockTimestamp) {
            // subtraction overflow is desired
            uint timeElapsed = blockTimestamp - _blockTimestampLast;
            reserve0Cumulative += _reserve0 * timeElapsed;
            reserve1Cumulative += _reserve1 * timeElapsed;
        }
    }

    // gives the current twap price measured from amountIn * tokenIn gives amountOut
    function current(address tokenIn, uint amountIn) external view returns (uint amountOut) {
        Observation memory _observation = lastObservation();
        (uint reserve0Cumulative, uint reserve1Cumulative,) = currentCumulativePrices();
        if (block.timestamp == _observation.timestamp) {
            _observation = observations[observations.length-2];
        }

        uint timeElapsed = block.timestamp - _observation.timestamp;
        uint _reserve0 = (reserve0Cumulative - _observation.reserve0Cumulative) / timeElapsed;
        uint _reserve1 = (reserve1Cumulative - _observation.reserve1Cumulative) / timeElapsed;
        amountOut = _getAmountOut(amountIn, tokenIn, _reserve0, _reserve1);
    }

    // as per `current`, however allows user configured granularity, up to the full window size
    function quote(address tokenIn, uint amountIn, uint granularity) external view returns (uint amountOut) {
        uint [] memory _prices = sample(tokenIn, amountIn, granularity, 1);
        uint priceAverageCumulative;
        for (uint i = 0; i < _prices.length; i++) {
            priceAverageCumulative += _prices[i];
        }
        return priceAverageCumulative / granularity;
    }

    // returns a memory set of twap prices
    function prices(address tokenIn, uint amountIn, uint points) external view returns (uint[] memory) {
        return sample(tokenIn, amountIn, points, 1);
    }

    function sample(address tokenIn, uint amountIn, uint points, uint window) public view returns (uint[] memory) {
        uint[] memory _prices = new uint[](points);

        uint length = observations.length-1;
        uint i = length - (points * window);
        uint nextIndex = 0;
        uint index = 0;

        for (; i < length; i+=window) {
            nextIndex = i + window;
            uint timeElapsed = observations[nextIndex].timestamp - observations[i].timestamp;
            uint _reserve0 = (observations[nextIndex].reserve0Cumulative - observations[i].reserve0Cumulative) / timeElapsed;
            uint _reserve1 = (observations[nextIndex].reserve1Cumulative - observations[i].reserve1Cumulative) / timeElapsed;
            _prices[index] = _getAmountOut(amountIn, tokenIn, _reserve0, _reserve1);
            // index < length; length cannot overflow
            unchecked {
                index = index + 1;
            }
        }
        return _prices;
    }

    // this low-level function should be called by addLiquidity functions in Router.sol, which performs important safety checks
    // standard uniswap v2 implementation
    function mint(address to) external lock returns (uint liquidity) {
        (uint _reserve0, uint _reserve1) = (reserve0, reserve1);
        uint _balance0 = IERC20(token0).balanceOf(address(this));
        uint _balance1 = IERC20(token1).balanceOf(address(this));
        uint _amount0 = _balance0 - _reserve0;
        uint _amount1 = _balance1 - _reserve1;

        uint _totalSupply = totalSupply; // gas savings, must be defined here since totalSupply can update in _mintFee
        if (_totalSupply == 0) {
            liquidity = Math.sqrt(_amount0 * _amount1) - MINIMUM_LIQUIDITY;
            _mint(address(0), MINIMUM_LIQUIDITY); // permanently lock the first MINIMUM_LIQUIDITY tokens
        } else {
            liquidity = Math.min(_amount0 * _totalSupply / _reserve0, _amount1 * _totalSupply / _reserve1);
        }
        require(liquidity > 0, 'ILM'); // Pair: INSUFFICIENT_LIQUIDITY_MINTED
        _mint(to, liquidity);

        _update(_balance0, _balance1, _reserve0, _reserve1);
        emit Mint(msg.sender, _amount0, _amount1);
    }

    // this low-level function should be called from a contract which performs important safety checks
    // standard uniswap v2 implementation
    function burn(address to) external lock returns (uint amount0, uint amount1) {
        (uint _reserve0, uint _reserve1) = (reserve0, reserve1);
        (address _token0, address _token1) = (token0, token1);
        uint _balance0 = IERC20(_token0).balanceOf(address(this));
        uint _balance1 = IERC20(_token1).balanceOf(address(this));
        uint _liquidity = balanceOf[address(this)];

        uint _totalSupply = totalSupply; // gas savings, must be defined here since totalSupply can update in _mintFee
        amount0 = _liquidity * _balance0 / _totalSupply; // using balances ensures pro-rata distribution
        amount1 = _liquidity * _balance1 / _totalSupply; // using balances ensures pro-rata distribution
        require(amount0 > 0 && amount1 > 0, 'ILB'); // Pair: 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);
        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(!PairFactory(factory).isPaused());
        require(amount0Out > 0 || amount1Out > 0, 'IOA'); // Pair: INSUFFICIENT_OUTPUT_AMOUNT
        (uint _reserve0, uint _reserve1) =  (reserve0, reserve1);
        require(amount0Out < _reserve0 && amount1Out < _reserve1, 'IL'); // Pair: INSUFFICIENT_LIQUIDITY

        uint _balance0;
        uint _balance1;
        { // scope for _token{0,1}, avoids stack too deep errors
        (address _token0, address _token1) = (token0, token1);
        require(to != _token0 && to != _token1, 'IT'); // Pair: 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) IPairCallee(to).hook(msg.sender, amount0Out, amount1Out, data); // callback, used for flash loans
        _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, 'IIA'); // Pair: INSUFFICIENT_INPUT_AMOUNT
        { // scope for reserve{0,1}Adjusted, avoids stack too deep errors
        (address _token0, address _token1) = (token0, token1);
        if (amount0In > 0) _update0(amount0In * PairFactory(factory).getFee(stable) / 10000); // accrue fees for token0 and move them out of pool
        if (amount1In > 0) _update1(amount1In * PairFactory(factory).getFee(stable) / 10000); // accrue fees for token1 and move them out of pool
        _balance0 = IERC20(_token0).balanceOf(address(this)); // since we removed tokens, we need to reconfirm balances, can also simply use previous balance - amountIn/ 10000, but doing balanceOf again as safety check
        _balance1 = IERC20(_token1).balanceOf(address(this));
        // The curve, either x3y+y3x for stable pools, or x*y for volatile pools
        require(_k(_balance0, _balance1) >= _k(_reserve0, _reserve1), 'K'); // Pair: 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, address _token1) = (token0, token1);
        _safeTransfer(_token0, to, IERC20(_token0).balanceOf(address(this)) - (reserve0));
        _safeTransfer(_token1, to, IERC20(_token1).balanceOf(address(this)) - (reserve1));
    }

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

    function _f(uint x0, uint y) internal pure returns (uint) {
        return x0*(y*y/1e18*y/1e18)/1e18+(x0*x0/1e18*x0/1e18)*y/1e18;
    }

    function _d(uint x0, uint y) internal pure returns (uint) {
        return 3*x0*(y*y/1e18)/1e18+(x0*x0/1e18*x0/1e18);
    }

    function _get_y(uint x0, uint xy, uint y) internal pure returns (uint) {
        for (uint i = 0; i < 255; i++) {
            uint y_prev = y;
            uint k = _f(x0, y);
            if (k < xy) {
                uint dy = (xy - k)*1e18/_d(x0, y);
                y = y + dy;
            } else {
                uint dy = (k - xy)*1e18/_d(x0, y);
                y = y - dy;
            }
            if (y > y_prev) {
                if (y - y_prev <= 1) {
                    return y;
                }
            } else {
                if (y_prev - y <= 1) {
                    return y;
                }
            }
        }
        return y;
    }

    function getAmountOut(uint amountIn, address tokenIn) external view returns (uint) {
        (uint _reserve0, uint _reserve1) = (reserve0, reserve1);
        amountIn -= amountIn * PairFactory(factory).getFee(stable) / 10000; // remove fee from amount received
        return _getAmountOut(amountIn, tokenIn, _reserve0, _reserve1);
    }

    function _getAmountOut(uint amountIn, address tokenIn, uint _reserve0, uint _reserve1) internal view returns (uint) {
        if (stable) {
            uint xy =  _k(_reserve0, _reserve1);
            _reserve0 = _reserve0 * 1e18 / decimals0;
            _reserve1 = _reserve1 * 1e18 / decimals1;
            (uint reserveA, uint reserveB) = tokenIn == token0 ? (_reserve0, _reserve1) : (_reserve1, _reserve0);
            amountIn = tokenIn == token0 ? amountIn * 1e18 / decimals0 : amountIn * 1e18 / decimals1;
            uint y = reserveB - _get_y(amountIn+reserveA, xy, reserveB);
            return y * (tokenIn == token0 ? decimals1 : decimals0) / 1e18;
        } else {
            (uint reserveA, uint reserveB) = tokenIn == token0 ? (_reserve0, _reserve1) : (_reserve1, _reserve0);
            return amountIn * reserveB / (reserveA + amountIn);
        }
    }

    function _k(uint x, uint y) internal view returns (uint) {
        if (stable) {
            uint _x = x * 1e18 / decimals0;
            uint _y = y * 1e18 / decimals1;
            uint _a = (_x * _y) / 1e18;
            uint _b = ((_x * _x) / 1e18 + (_y * _y) / 1e18);
            return _a * _b / 1e18;  // x3y+y3x >= k
        } else {
            return x * y; // xy >= k
        }
    }

    function _mint(address dst, uint amount) internal {
        _updateFor(dst); // balances must be updated on mint/burn/transfer
        totalSupply += amount;
        balanceOf[dst] += amount;
        emit Transfer(address(0), dst, amount);
    }

    function _burn(address dst, uint amount) internal {
        _updateFor(dst);
        totalSupply -= amount;
        balanceOf[dst] -= amount;
        emit Transfer(dst, address(0), amount);
    }

    function approve(address spender, uint amount) external returns (bool) {
        allowance[msg.sender][spender] = amount;

        emit Approval(msg.sender, spender, amount);
        return true;
    }

    function permit(address owner, address spender, uint value, uint deadline, uint8 v, bytes32 r, bytes32 s) external {
        require(deadline >= block.timestamp, 'Pair: EXPIRED');
        DOMAIN_SEPARATOR = keccak256(
            abi.encode(
                keccak256('EIP712Domain(string name,string version,uint256 chainId,address verifyingContract)'),
                keccak256(bytes(name)),
                keccak256(bytes('1')),
                block.chainid,
                address(this)
            )
        );
        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, 'Pair: INVALID_SIGNATURE');
        allowance[owner][spender] = value;

        emit Approval(owner, spender, value);
    }

    function transfer(address dst, uint amount) external returns (bool) {
        _transferTokens(msg.sender, dst, amount);
        return true;
    }

    function transferFrom(address src, address dst, uint amount) external returns (bool) {
        address spender = msg.sender;
        uint spenderAllowance = allowance[src][spender];

        if (spender != src && spenderAllowance != type(uint).max) {
            uint newAllowance = spenderAllowance - amount;
            allowance[src][spender] = newAllowance;

            emit Approval(src, spender, newAllowance);
        }

        _transferTokens(src, dst, amount);
        return true;
    }

    function _transferTokens(address src, address dst, uint amount) internal {
        _updateFor(src); // update fee position for src
        _updateFor(dst); // update fee position for dst

        balanceOf[src] -= amount;
        balanceOf[dst] += amount;

        emit Transfer(src, dst, amount);
    }

    function _safeTransfer(address token,address to,uint256 value) internal {
        require(token.code.length > 0);
        (bool success, bytes memory data) =
        token.call(abi.encodeWithSelector(IERC20.transfer.selector, to, value));
        require(success && (data.length == 0 || abi.decode(data, (bool))));
    }
}

File 2 of 8 : Math.sol
pragma solidity 0.8.13;

library Math {
    function max(uint a, uint b) internal pure returns (uint) {
        return a >= b ? a : b;
    }
    function min(uint a, uint b) internal pure returns (uint) {
        return a < b ? a : b;
    }
    function sqrt(uint y) internal pure returns (uint z) {
        if (y > 3) {
            z = y;
            uint x = y / 2 + 1;
            while (x < z) {
                z = x;
                x = (y / x + x) / 2;
            }
        } else if (y != 0) {
            z = 1;
        }
    }
    function cbrt(uint256 n) internal pure returns (uint256) { unchecked {
        uint256 x = 0;
        for (uint256 y = 1 << 255; y > 0; y >>= 3) {
            x <<= 1;
            uint256 z = 3 * x * (x + 1) + 1;
            if (n / y >= z) {
                n -= y * z;
                x += 1;
            }
        }
        return x;
    }}
}

File 3 of 8 : IERC20.sol
pragma solidity 0.8.13;

interface IERC20 {
    function totalSupply() external view returns (uint256);
    function transfer(address recipient, uint amount) external returns (bool);
    function decimals() external view returns (uint8);
    function symbol() external view returns (string memory);
    function balanceOf(address) external view returns (uint);
    function transferFrom(address sender, address recipient, uint amount) external returns (bool);
    function allowance(address owner, address spender) external view returns (uint);
    function approve(address spender, uint value) external returns (bool);

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

File 4 of 8 : IPair.sol
pragma solidity 0.8.13;

interface IPair {
    function metadata() external view returns (uint dec0, uint dec1, uint r0, uint r1, bool st, address t0, address t1);
    function claimFees() external returns (uint, uint);
    function tokens() external returns (address, address);
    function transferFrom(address src, address dst, uint amount) external returns (bool);
    function permit(address owner, address spender, uint value, uint deadline, uint8 v, bytes32 r, bytes32 s) external;
    function swap(uint amount0Out, uint amount1Out, address to, bytes calldata data) external;
    function burn(address to) external returns (uint amount0, uint amount1);
    function mint(address to) external returns (uint liquidity);
    function getReserves() external view returns (uint _reserve0, uint _reserve1, uint _blockTimestampLast);
    function getAmountOut(uint, address) external view returns (uint);
}

File 5 of 8 : IPairCallee.sol
pragma solidity 0.8.13;

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

File 6 of 8 : PairFactory.sol
// SPDX-License-Identifier: MIT
pragma solidity 0.8.13;

import 'contracts/interfaces/IPairFactory.sol';
import 'contracts/Pair.sol';

contract PairFactory is IPairFactory {

    bool public isPaused;
    address public pauser;
    address public pendingPauser;

    uint256 public stableFee;
    uint256 public volatileFee;
    uint256 public constant MAX_FEE = 5; // 0.05%
    address public feeManager;
    address public pendingFeeManager;

    mapping(address => mapping(address => mapping(bool => address))) public getPair;
    address[] public allPairs;
    mapping(address => bool) public isPair; // simplified check if its a pair, given that `stable` flag might not be available in peripherals

    address internal _temp0;
    address internal _temp1;
    bool internal _temp;

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

    constructor() {
        pauser = msg.sender;
        isPaused = false;
        feeManager = msg.sender;
        stableFee = 2; // 0.02%
        volatileFee = 2;
    }

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

    function setPauser(address _pauser) external {
        require(msg.sender == pauser);
        pendingPauser = _pauser;
    }

    function acceptPauser() external {
        require(msg.sender == pendingPauser);
        pauser = pendingPauser;
    }

    function setPause(bool _state) external {
        require(msg.sender == pauser);
        isPaused = _state;
    }

    function setFeeManager(address _feeManager) external {
        require(msg.sender == feeManager, 'not fee manager');
        pendingFeeManager = _feeManager;
    }

    function acceptFeeManager() external {
        require(msg.sender == pendingFeeManager, 'not pending fee manager');
        feeManager = pendingFeeManager;
    }

    function setFee(bool _stable, uint256 _fee) external {
        require(msg.sender == feeManager, 'not fee manager');
        require(_fee <= MAX_FEE, 'fee too high');
        require(_fee != 0, 'fee must be nonzero');
        if (_stable) {
            stableFee = _fee;
        } else {
            volatileFee = _fee;
        }
    }

    function getFee(bool _stable) public view returns(uint256) {
        return _stable ? stableFee : volatileFee;
    }

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

    function getInitializable() external view returns (address, address, bool) {
        return (_temp0, _temp1, _temp);
    }

    function createPair(address tokenA, address tokenB, bool stable) external returns (address pair) {
        require(tokenA != tokenB, 'IA'); // Pair: IDENTICAL_ADDRESSES
        (address token0, address token1) = tokenA < tokenB ? (tokenA, tokenB) : (tokenB, tokenA);
        require(token0 != address(0), 'ZA'); // Pair: ZERO_ADDRESS
        require(getPair[token0][token1][stable] == address(0), 'PE'); // Pair: PAIR_EXISTS - single check is sufficient
        bytes32 salt = keccak256(abi.encodePacked(token0, token1, stable)); // notice salt includes stable as well, 3 parameters
        (_temp0, _temp1, _temp) = (token0, token1, stable);
        pair = address(new Pair{salt:salt}());
        getPair[token0][token1][stable] = pair;
        getPair[token1][token0][stable] = pair; // populate mapping in the reverse direction
        allPairs.push(pair);
        isPair[pair] = true;
        emit PairCreated(token0, token1, stable, pair, allPairs.length);
    }
}

File 7 of 8 : PairFees.sol
// SPDX-License-Identifier: MIT
pragma solidity 0.8.13;

import 'contracts/interfaces/IERC20.sol';

// Pair Fees contract is used as a 1:1 pair relationship to split out fees, this ensures that the curve does not need to be modified for LP shares
contract PairFees {

    address internal immutable pair; // The pair it is bonded to
    address internal immutable token0; // token0 of pair, saved localy and statically for gas optimization
    address internal immutable token1; // Token1 of pair, saved localy and statically for gas optimization

    constructor(address _token0, address _token1) {
        pair = msg.sender;
        token0 = _token0;
        token1 = _token1;
    }

    function _safeTransfer(address token,address to,uint256 value) internal {
        require(token.code.length > 0);
        (bool success, bytes memory data) =
        token.call(abi.encodeWithSelector(IERC20.transfer.selector, to, value));
        require(success && (data.length == 0 || abi.decode(data, (bool))));
    }

    // Allow the pair to transfer fees to users
    function claimFeesFor(address recipient, uint amount0, uint amount1) external {
        require(msg.sender == pair);
        if (amount0 > 0) _safeTransfer(token0, recipient, amount0);
        if (amount1 > 0) _safeTransfer(token1, recipient, amount1);
    }

}

File 8 of 8 : IPairFactory.sol
pragma solidity 0.8.13;

interface IPairFactory {
    function allPairsLength() external view returns (uint);
    function isPair(address pair) external view returns (bool);
    function pairCodeHash() external pure returns (bytes32);
    function getPair(address tokenA, address token, bool stable) external view returns (address);
    function createPair(address tokenA, address tokenB, bool stable) external returns (address pair);
}

Settings
{
  "remappings": [
    "LayerZero/=lib/LayerZero/contracts/",
    "ds-test/=lib/ds-test/src/",
    "forge-optimism/=lib/rollcall/lib/forge-optimism/src/",
    "forge-std/=lib/forge-std/src/",
    "lib/=lib/rollcall/src/lib/",
    "openzeppelin-contracts/=lib/openzeppelin-contracts/",
    "rollcall/=lib/rollcall/src/",
    "solmate/=lib/solmate/src/",
    "utils/=test/utils/",
    "contracts/=contracts/"
  ],
  "optimizer": {
    "enabled": true,
    "runs": 200
  },
  "metadata": {
    "bytecodeHash": "ipfs"
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "evmVersion": "london"
}

Contract Security Audit

Contract ABI

[{"inputs":[],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":true,"internalType":"address","name":"spender","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"}],"name":"Approval","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"sender","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount0","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"amount1","type":"uint256"},{"indexed":true,"internalType":"address","name":"to","type":"address"}],"name":"Burn","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"sender","type":"address"},{"indexed":true,"internalType":"address","name":"recipient","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount0","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"amount1","type":"uint256"}],"name":"Claim","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"sender","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount0","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"amount1","type":"uint256"}],"name":"Fees","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"sender","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount0","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"amount1","type":"uint256"}],"name":"Mint","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"sender","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount0In","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"amount1In","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"amount0Out","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"amount1Out","type":"uint256"},{"indexed":true,"internalType":"address","name":"to","type":"address"}],"name":"Swap","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint256","name":"reserve0","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"reserve1","type":"uint256"}],"name":"Sync","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"from","type":"address"},{"indexed":true,"internalType":"address","name":"to","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"}],"name":"Transfer","type":"event"},{"inputs":[{"internalType":"address","name":"","type":"address"},{"internalType":"address","name":"","type":"address"}],"name":"allowance","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"spender","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"approve","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"balanceOf","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"blockTimestampLast","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"to","type":"address"}],"name":"burn","outputs":[{"internalType":"uint256","name":"amount0","type":"uint256"},{"internalType":"uint256","name":"amount1","type":"uint256"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"claimFees","outputs":[{"internalType":"uint256","name":"claimed0","type":"uint256"},{"internalType":"uint256","name":"claimed1","type":"uint256"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"claimable0","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"claimable1","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"tokenIn","type":"address"},{"internalType":"uint256","name":"amountIn","type":"uint256"}],"name":"current","outputs":[{"internalType":"uint256","name":"amountOut","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"currentCumulativePrices","outputs":[{"internalType":"uint256","name":"reserve0Cumulative","type":"uint256"},{"internalType":"uint256","name":"reserve1Cumulative","type":"uint256"},{"internalType":"uint256","name":"blockTimestamp","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"decimals","outputs":[{"internalType":"uint8","name":"","type":"uint8"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"fees","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"amountIn","type":"uint256"},{"internalType":"address","name":"tokenIn","type":"address"}],"name":"getAmountOut","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getReserves","outputs":[{"internalType":"uint256","name":"_reserve0","type":"uint256"},{"internalType":"uint256","name":"_reserve1","type":"uint256"},{"internalType":"uint256","name":"_blockTimestampLast","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"index0","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"index1","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"lastObservation","outputs":[{"components":[{"internalType":"uint256","name":"timestamp","type":"uint256"},{"internalType":"uint256","name":"reserve0Cumulative","type":"uint256"},{"internalType":"uint256","name":"reserve1Cumulative","type":"uint256"}],"internalType":"struct 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Deployed Bytecode

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Block Transaction Difficulty Gas Used Reward
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