Contract 0x4c8b195d33c6f95a8262d56ede793611ee7b5aad 10

 
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0xc2ed40f1171eefb4eb440f614b1cdd6577dd0cf1f49de2db689a2a1084605102Approve1062262882023-06-29 15:09:13241 days 9 hrs ago0x51b0eab5e7aef09d268d20d2c2c0c147220d6535 IN  0x4c8b195d33c6f95a8262d56ede793611ee7b5aad0 ETH0.0000884272990.000920324
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0xc86c72f72eca0b71a17cfa4b51febb7dcce0e064c363eef27b8d49a8a9e4444cApprove1061053302023-06-26 19:57:17244 days 4 hrs ago0x196b473f7d74820029e269a98baf3517c463fa89 IN  0x4c8b195d33c6f95a8262d56ede793611ee7b5aad0 ETH0.0000221385560.000000063
0xe76888f860a99403d6b2a31665e70e158f059ddb7f4a09b22e21033dc87cc935Approve1054132122023-06-10 19:26:41260 days 5 hrs ago0x85204a5e932b69455822033f33e378dff4bb8960 IN  0x4c8b195d33c6f95a8262d56ede793611ee7b5aad0 ETH0.000026707670.00050006
0x1dc13e98d041401a966d684e4dd9a58c3f8e27d841e54d9503355b6f9eaa40b0Approve1023255852023-05-28 13:09:50273 days 11 hrs ago0xc7e9a2df26760090563bcc5b8859bf91903c4e53 IN  0x4c8b195d33c6f95a8262d56ede793611ee7b5aad0 ETH0.000109396120.001
0x9bc3bfa982f36748e287f7fda2dafecbb92ec21a7599507d82946acf4f7f3242Approve961631312023-05-03 17:46:09298 days 6 hrs ago0x85204a5e932b69455822033f33e378dff4bb8960 IN  0x4c8b195d33c6f95a8262d56ede793611ee7b5aad0 ETH0.0004144709140.001
0x88258405c4c8736b264a9059173d2687b7538846d4d1babe23e48108353b6e8bApprove951386392023-04-29 3:02:20302 days 21 hrs ago0x4a0614ee0288524d756804873344dfedce32350f IN  0x4c8b195d33c6f95a8262d56ede793611ee7b5aad0 ETH0.0001558859580.001
0xc052f3238616ac7a6b40953e66ecd61b4968a372b2458ff3d0909dcd21b23899Approve946191192023-04-27 2:58:41304 days 21 hrs ago0x3daeae002a96180022348669a8f61c6d2045ab21 IN  0x4c8b195d33c6f95a8262d56ede793611ee7b5aad0 ETH0.0002243829380.001
0xc26413caf2fffb179f27fe12476dc17c28ba99d5f08d6fbd4f8717777acf238aApprove945980652023-04-27 1:19:11304 days 23 hrs ago0xf6657bbcfeb5c2746e8c609e35018a5a8caa13fb IN  0x4c8b195d33c6f95a8262d56ede793611ee7b5aad0 ETH0.0001655230330.001
0x7b8c728fea5d7a2661370931f76df3d06e8236ca3d29c59154eafa527e4d18bbApprove935532252023-04-23 14:03:38308 days 10 hrs ago0xf2cbb98b2f8eefb1fbd6b6c1a07915711de4da03 IN  0x4c8b195d33c6f95a8262d56ede793611ee7b5aad0 ETH0.0001847932350.001
0x03f3aa8cce670283b3f1058085abd159ea79d29c56b442cf97a3ceca7cf62348Approve933880472023-04-23 3:29:58308 days 21 hrs ago0x7556c2a4fbd77b91bb1bfbf647a4d2b36d63cf41 IN  0x4c8b195d33c6f95a8262d56ede793611ee7b5aad0 ETH0.0001448703210.001
0x5401ad37aa5e9f507a1d27a6525e691eac1d4355107a6d6600f71cd049946c28Approve927197772023-04-21 2:20:12310 days 22 hrs ago0xf6657bbcfeb5c2746e8c609e35018a5a8caa13fb IN  0x4c8b195d33c6f95a8262d56ede793611ee7b5aad0 ETH0.0001791073520.001
0xcf0290f0832ae161fcb7e3412823ac9523cf5d38d5fc6607a86f23372649d929Approve927197172023-04-21 2:19:41310 days 22 hrs ago0x3daeae002a96180022348669a8f61c6d2045ab21 IN  0x4c8b195d33c6f95a8262d56ede793611ee7b5aad0 ETH0.0001797158850.001
0xbdc41706d931676e822d13035bd2b28cfcb8042d845f94b91cf7c379aa8ba1b8Approve925546182023-04-20 12:04:45311 days 12 hrs ago0x4a0614ee0288524d756804873344dfedce32350f IN  0x4c8b195d33c6f95a8262d56ede793611ee7b5aad0 ETH0.0002692585070.001
0x39bfb4110cbc79ca40933f880f22c71177c44e88c93bf3801221d7808d18e74bApprove925331092023-04-20 10:31:58311 days 14 hrs ago0x7556c2a4fbd77b91bb1bfbf647a4d2b36d63cf41 IN  0x4c8b195d33c6f95a8262d56ede793611ee7b5aad0 ETH0.0002535781170.001
0x4767a296750eacbb7d28bd897163b64ed37dd6e5efbeadf6dfa1b31a82b5dcdaApprove924946782023-04-20 7:44:00311 days 16 hrs ago0xa48cd684ded1eee3de13e052bbdcfed59558a1ca IN  0x4c8b195d33c6f95a8262d56ede793611ee7b5aad0 ETH0.0002494253790.001
0x151a212743d7a4bfb5df685de40789cb86eb71d271a24bccae8fb54688fb2962Approve924943072023-04-20 7:41:59311 days 16 hrs ago0xa48cd684ded1eee3de13e052bbdcfed59558a1ca IN  0x4c8b195d33c6f95a8262d56ede793611ee7b5aad0 ETH0.0002187201610.001
0x1e8b8e11669869558554fccc687108880ba7d1b696081a6d40f410c4c49aa807Approve924941672023-04-20 7:41:14311 days 16 hrs ago0xa48cd684ded1eee3de13e052bbdcfed59558a1ca IN  0x4c8b195d33c6f95a8262d56ede793611ee7b5aad0 ETH0.0002162994010.001
0x8476f7de0d7440cc2ef22b516e39372d97456a8dc46357f8e060d521ab32457bApprove924858012023-04-20 6:50:02311 days 17 hrs ago0xc7e9a2df26760090563bcc5b8859bf91903c4e53 IN  0x4c8b195d33c6f95a8262d56ede793611ee7b5aad0 ETH0.0002660644420.001
0xdffc7f71af0a8dac4d9dca51c155973ed51342e6d45aaade84172062404e95f1Approve922415882023-04-19 13:06:22312 days 11 hrs ago0xc7e9a2df26760090563bcc5b8859bf91903c4e53 IN  0x4c8b195d33c6f95a8262d56ede793611ee7b5aad0 ETH0.0003262666140.001
0xcc470e9776b9ecc0e5bdb7b58bfb5c2966679cb2b4cbfb300f50f2d69dce24d4Approve918552082023-04-18 9:26:37313 days 15 hrs ago0xc26efa8199105d317ad00a2e90bc5ea445a3cf5f IN  0x4c8b195d33c6f95a8262d56ede793611ee7b5aad0 ETH0.0001731213740.001
0x90823e73af02b76b500af1b8716f36bd6c57bb4ae0924f1512866829097c7d1bApprove903951272023-04-14 16:54:42317 days 7 hrs ago0x916b8cf245cbd54d5ce2c4b5d5d89425723cea3a IN  0x4c8b195d33c6f95a8262d56ede793611ee7b5aad0 ETH0.0001211577210.001
0xc5fa7fb51b9412f7b8db8d3172d8c3649142e1c693d71a397e49dde0acb0895aApprove878104512023-04-08 19:45:42323 days 4 hrs ago0x9caf776252ace2e4a68faceaeee115ca016efb1d IN  0x4c8b195d33c6f95a8262d56ede793611ee7b5aad0 ETH0.0000965889450.001
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0x301b20fde3563b77356759367ccf408f3779b7aaae8d0aa9dade92ecfd3b1a111075582542023-07-30 11:08:05210 days 13 hrs ago 0x4c8b195d33c6f95a8262d56ede793611ee7b5aad Velodrome Finance: Pair Factory0 ETH
0x301b20fde3563b77356759367ccf408f3779b7aaae8d0aa9dade92ecfd3b1a111075582542023-07-30 11:08:05210 days 13 hrs ago 0xed4da4d3b90cb359d0216c0016ac6d9241d817c3 0x4c8b195d33c6f95a8262d56ede793611ee7b5aad0 ETH
0x301b20fde3563b77356759367ccf408f3779b7aaae8d0aa9dade92ecfd3b1a111075582542023-07-30 11:08:05210 days 13 hrs ago 0x4c8b195d33c6f95a8262d56ede793611ee7b5aad Velodrome Finance: Pair Factory0 ETH
0x301b20fde3563b77356759367ccf408f3779b7aaae8d0aa9dade92ecfd3b1a111075582542023-07-30 11:08:05210 days 13 hrs ago 0xed4da4d3b90cb359d0216c0016ac6d9241d817c3 0x4c8b195d33c6f95a8262d56ede793611ee7b5aad0 ETH
0x301b20fde3563b77356759367ccf408f3779b7aaae8d0aa9dade92ecfd3b1a111075582542023-07-30 11:08:05210 days 13 hrs ago 0x4c8b195d33c6f95a8262d56ede793611ee7b5aad Velodrome Finance: Pair Factory0 ETH
0x301b20fde3563b77356759367ccf408f3779b7aaae8d0aa9dade92ecfd3b1a111075582542023-07-30 11:08:05210 days 13 hrs ago 0xed4da4d3b90cb359d0216c0016ac6d9241d817c3 0x4c8b195d33c6f95a8262d56ede793611ee7b5aad0 ETH
0x41874cb778773fa6ff775f310d3ef1d4d4a155afa6566e6838816d1ac914a0551075570572023-07-30 10:28:11210 days 14 hrs ago 0x4c8b195d33c6f95a8262d56ede793611ee7b5aad Velodrome Finance: Pair Factory0 ETH
0x41874cb778773fa6ff775f310d3ef1d4d4a155afa6566e6838816d1ac914a0551075570572023-07-30 10:28:11210 days 14 hrs ago 0xed4da4d3b90cb359d0216c0016ac6d9241d817c3 0x4c8b195d33c6f95a8262d56ede793611ee7b5aad0 ETH
0x41874cb778773fa6ff775f310d3ef1d4d4a155afa6566e6838816d1ac914a0551075570572023-07-30 10:28:11210 days 14 hrs ago 0x4c8b195d33c6f95a8262d56ede793611ee7b5aad Velodrome Finance: Pair Factory0 ETH
0x41874cb778773fa6ff775f310d3ef1d4d4a155afa6566e6838816d1ac914a0551075570572023-07-30 10:28:11210 days 14 hrs ago 0xed4da4d3b90cb359d0216c0016ac6d9241d817c3 0x4c8b195d33c6f95a8262d56ede793611ee7b5aad0 ETH
0x41874cb778773fa6ff775f310d3ef1d4d4a155afa6566e6838816d1ac914a0551075570572023-07-30 10:28:11210 days 14 hrs ago 0x4c8b195d33c6f95a8262d56ede793611ee7b5aad Velodrome Finance: Pair Factory0 ETH
0x41874cb778773fa6ff775f310d3ef1d4d4a155afa6566e6838816d1ac914a0551075570572023-07-30 10:28:11210 days 14 hrs ago 0xed4da4d3b90cb359d0216c0016ac6d9241d817c3 0x4c8b195d33c6f95a8262d56ede793611ee7b5aad0 ETH
0xd1d0c95b1489b1bcef0143c597e605031fc8265aface3a93cf8ae0471f5570bd1075562012023-07-30 9:59:39210 days 14 hrs ago 0x4c8b195d33c6f95a8262d56ede793611ee7b5aad Velodrome Finance: Pair Factory0 ETH
0xd1d0c95b1489b1bcef0143c597e605031fc8265aface3a93cf8ae0471f5570bd1075562012023-07-30 9:59:39210 days 14 hrs ago 0xed4da4d3b90cb359d0216c0016ac6d9241d817c3 0x4c8b195d33c6f95a8262d56ede793611ee7b5aad0 ETH
0xd1d0c95b1489b1bcef0143c597e605031fc8265aface3a93cf8ae0471f5570bd1075562012023-07-30 9:59:39210 days 14 hrs ago 0x4c8b195d33c6f95a8262d56ede793611ee7b5aad Velodrome Finance: Pair Factory0 ETH
0xd1d0c95b1489b1bcef0143c597e605031fc8265aface3a93cf8ae0471f5570bd1075562012023-07-30 9:59:39210 days 14 hrs ago 0xed4da4d3b90cb359d0216c0016ac6d9241d817c3 0x4c8b195d33c6f95a8262d56ede793611ee7b5aad0 ETH
0xd1d0c95b1489b1bcef0143c597e605031fc8265aface3a93cf8ae0471f5570bd1075562012023-07-30 9:59:39210 days 14 hrs ago 0x4c8b195d33c6f95a8262d56ede793611ee7b5aad Velodrome Finance: Pair Factory0 ETH
0xd1d0c95b1489b1bcef0143c597e605031fc8265aface3a93cf8ae0471f5570bd1075562012023-07-30 9:59:39210 days 14 hrs ago 0xed4da4d3b90cb359d0216c0016ac6d9241d817c3 0x4c8b195d33c6f95a8262d56ede793611ee7b5aad0 ETH
0x3a669704cc661149c119a49613176f0079c6bec461cecd7fe7dc223f3390cc831075537602023-07-30 8:38:17210 days 15 hrs ago 0x4c8b195d33c6f95a8262d56ede793611ee7b5aad Velodrome Finance: Pair Factory0 ETH
0x3a669704cc661149c119a49613176f0079c6bec461cecd7fe7dc223f3390cc831075537602023-07-30 8:38:17210 days 15 hrs ago 0xed4da4d3b90cb359d0216c0016ac6d9241d817c3 0x4c8b195d33c6f95a8262d56ede793611ee7b5aad0 ETH
0x3a669704cc661149c119a49613176f0079c6bec461cecd7fe7dc223f3390cc831075537602023-07-30 8:38:17210 days 15 hrs ago 0x4c8b195d33c6f95a8262d56ede793611ee7b5aad Velodrome Finance: Pair Factory0 ETH
0x3a669704cc661149c119a49613176f0079c6bec461cecd7fe7dc223f3390cc831075537602023-07-30 8:38:17210 days 15 hrs ago 0xed4da4d3b90cb359d0216c0016ac6d9241d817c3 0x4c8b195d33c6f95a8262d56ede793611ee7b5aad0 ETH
0x3a669704cc661149c119a49613176f0079c6bec461cecd7fe7dc223f3390cc831075537602023-07-30 8:38:17210 days 15 hrs ago 0x4c8b195d33c6f95a8262d56ede793611ee7b5aad Velodrome Finance: Pair Factory0 ETH
0x3a669704cc661149c119a49613176f0079c6bec461cecd7fe7dc223f3390cc831075537602023-07-30 8:38:17210 days 15 hrs ago 0xed4da4d3b90cb359d0216c0016ac6d9241d817c3 0x4c8b195d33c6f95a8262d56ede793611ee7b5aad0 ETH
0x852756bdb857e2bb3eb9892cb40f73c1ae1af4df4cd350b77862d7f5f05238381075528172023-07-30 8:06:51210 days 16 hrs ago 0x4c8b195d33c6f95a8262d56ede793611ee7b5aad Velodrome Finance: Pair Factory0 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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