Contract 0xffd74ef185989bff8752c818a53a47fc45388f08 16

 
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Block
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Value
0x2e2022b1d3efedd719c5d2ddd4c9b8483c6984e543e85418b2cc9f7cbd7bdf83Approve1166309282024-02-25 11:30:332 days 1 hr ago0x5ce84fdb8a13b1c6378291c993543ed4cfd4a831 IN  0xffd74ef185989bff8752c818a53a47fc45388f080 ETH0.000045118580.004156045
0x0a365fe07326de4fff74dd2a7dea63ce24f505780ca931cb81d201bb56ab3a7cApprove1166126862024-02-25 1:22:292 days 11 hrs ago0xc90c3a70654fd4a149a985f6cb47ab9bb8698ff0 IN  0xffd74ef185989bff8752c818a53a47fc45388f080 ETH0.0000382639360.002520798
0x00beb141abe2d6e6fc6b245cac9e682db4e5ca97499164a7d6248d5cefc4cd13Approve1165821212024-02-24 8:23:393 days 4 hrs ago0x04795cdee2b677b46878896dae76be5cb174dac6 IN  0xffd74ef185989bff8752c818a53a47fc45388f080 ETH0.0000574962470.003488496
0x640442a013526f4a6ac6e4524f7ca08d5ebd8a4741c7e9ea32e187b2526abe54Approve1165545852024-02-23 17:05:473 days 19 hrs ago0xef09db43283c53b2fe1e56bb46feb42f57a5e3cf IN  0xffd74ef185989bff8752c818a53a47fc45388f080 ETH0.0000719529660.002458313
0x1f462ba080380aa2fcaf45e4f7518538341edc0ca308f25e3361423a78e36068Approve1165179262024-02-22 20:43:494 days 16 hrs ago0x57801104915b3807ad8f8d5fd9e5450a719f95ce IN  0xffd74ef185989bff8752c818a53a47fc45388f080 ETH0.0001076143390.004351679
0x80f4554775ae8b16b1182d69a92a93672b606c9dd4620a4a996c52fc983cea22Approve1163674022024-02-19 9:06:218 days 3 hrs ago0x6b129511c04851db1c493d2d72cffc4cf5f67c5d IN  0xffd74ef185989bff8752c818a53a47fc45388f080 ETH0.0000641799210.005505137
0x6130bbc4e159649350594c3189df3ef818fd4dde558b77e288d95244cdb0b124Claim Fees1163673342024-02-19 9:04:058 days 3 hrs ago0x5130de2c6742086136471ed1ce19f540095b414d IN  0xffd74ef185989bff8752c818a53a47fc45388f080 ETH0.0000512384120.005506906
0x2fa81530de30838f8bf7bc1f2b527f11080971b164bcffcc6d38f7b40c261bb7Approve1163309282024-02-18 12:50:338 days 23 hrs ago0xdce35510f191d4a665bc1a563c945230b87944dc IN  0xffd74ef185989bff8752c818a53a47fc45388f080 ETH0.000032501860.006445572
0xd01fee5ce657bd136d1c591188d107389ba553c437b0f10d6a43764616caa163Approve1163307362024-02-18 12:44:099 days 3 mins ago0xdce35510f191d4a665bc1a563c945230b87944dc IN  0xffd74ef185989bff8752c818a53a47fc45388f080 ETH0.0000310226290.006380968
0x7de12efed42f5d61441abd3453d9f81c1efc42a033dcbd706a0107781c723dccApprove1162696862024-02-17 2:49:0910 days 9 hrs ago0x0dcf4e60dbb7d5d3a68af53aed52c36d90bc776d IN  0xffd74ef185989bff8752c818a53a47fc45388f080 ETH0.0000261455740.0060501
0x99d21c1f1a1686849bd6cb325107a1a86ec65996cdfe1208c36a025d0f080b4cApprove1162477572024-02-16 14:38:1110 days 22 hrs ago0x30d51292f5d6661982863d06c1a1e4dbed7fcb4b IN  0xffd74ef185989bff8752c818a53a47fc45388f080 ETH0.0000859301620.005798219
0xd3916c17215af497c060f4a9f2bfd4e1808cdd11406db628b2a1cb2f43caf718Approve1162112082024-02-15 18:19:5311 days 18 hrs ago0x19c943bea2bca9efd04eee7b847b8a738b2c4002 IN  0xffd74ef185989bff8752c818a53a47fc45388f080 ETH0.0000696695310.006997357
0x171a1343b57102378e1454f29e5d2948b182a42a51093202681a67b3a5cf539fApprove1162111992024-02-15 18:19:3511 days 18 hrs ago0x19c943bea2bca9efd04eee7b847b8a738b2c4002 IN  0xffd74ef185989bff8752c818a53a47fc45388f080 ETH0.0000678830080.006811836
0xf1fdbdc8b7c78179ec3ed0c340ac4c15b7b015f5945c3d4286bc2cd6de141fdfApprove1161590682024-02-14 13:21:5312 days 23 hrs ago 0x5e0d9578f76ad883e9dde798713fce7255e16695 IN  0xffd74ef185989bff8752c818a53a47fc45388f080 ETH0.0000516544410.1009315
0xa10c39b8f1b6e597449f6d3fbd43375a63c9ca15915c02e8cabeae2d9cdab1c8Approve1161259182024-02-13 18:56:5313 days 17 hrs ago0x3fe2e08a1f7766606574a91a5cfaf3342d023947 IN  0xffd74ef185989bff8752c818a53a47fc45388f080 ETH0.0000786812780.093559659
0xbb46e4a9db2c95556eeac92d47fcbe54fe2c718fbc19d85e78aaef78bb91181dSync1161208072024-02-13 16:06:3113 days 20 hrs ago0xfb26397232d3fe044836a7390c3dc9af8565a465 IN  0xffd74ef185989bff8752c818a53a47fc45388f080 ETH0.0000565639080.101258459
0x41107f222d575931d96a6085bc13340d5e110e04cc60230a4756127fa2f58fdaSkim1161208022024-02-13 16:06:2113 days 20 hrs ago0xfb26397232d3fe044836a7390c3dc9af8565a465 IN  0xffd74ef185989bff8752c818a53a47fc45388f080 ETH0.0000618548410.103576271
0xa9be15064fa898176c93a8e0404d9d910edb8109eefde073f53f0151700bd35aClaim Fees1161207722024-02-13 16:05:2113 days 20 hrs ago0xfb26397232d3fe044836a7390c3dc9af8565a465 IN  0xffd74ef185989bff8752c818a53a47fc45388f080 ETH0.0000599380550.09892766
0x3788fe6a0a0e8f03418b1d23457a69d7bf89ffaa939a50310956ac8d53d82799Approve1161207392024-02-13 16:04:1513 days 20 hrs ago0xfb26397232d3fe044836a7390c3dc9af8565a465 IN  0xffd74ef185989bff8752c818a53a47fc45388f080 ETH0.0000766054580.100997303
0x535ff278c4440521e225721e8818643c07c39be360fde7f1917ee53930f65489Approve1161189942024-02-13 15:06:0513 days 21 hrs ago0xfb26397232d3fe044836a7390c3dc9af8565a465 IN  0xffd74ef185989bff8752c818a53a47fc45388f080 ETH0.0001087913150.101425081
0x7eed85d05ef89385cd8771eb94db7fd9737463112dcf385522cd4a94ab7b7d6fApprove1161187012024-02-13 14:56:1913 days 21 hrs ago0xfb26397232d3fe044836a7390c3dc9af8565a465 IN  0xffd74ef185989bff8752c818a53a47fc45388f080 ETH0.0000741038050.100809744
0xbadf5b99838397c961fe70c3955f7060762caf64ae4abde9d51a32d66daa7650Approve1161186982024-02-13 14:56:1313 days 21 hrs ago0xfb26397232d3fe044836a7390c3dc9af8565a465 IN  0xffd74ef185989bff8752c818a53a47fc45388f080 ETH0.0000761470940.101613204
0xd19afae5b76bceac81c97cd5a13846ea3cb1faa16a4f60fde734842c4acce711Claim Fees1161185402024-02-13 14:50:5713 days 21 hrs ago0xfb26397232d3fe044836a7390c3dc9af8565a465 IN  0xffd74ef185989bff8752c818a53a47fc45388f080 ETH0.0000806990930.103683507
0x9c3f8651ac1966b17b9a4583c6a32ed1efa1d157ca0cafbe2a1c634bf1d35566Skim1161184472024-02-13 14:47:5113 days 22 hrs ago0xfb26397232d3fe044836a7390c3dc9af8565a465 IN  0xffd74ef185989bff8752c818a53a47fc45388f080 ETH0.0000937587650.098492899
0x1a933e27c8b085bd547c4be12e3ac65c3cf414c01b129a04ecea3b948a4cb0a0Approve1160806852024-02-12 17:49:0714 days 18 hrs ago0x0e9d0c4ca23480bb1fd70337ad6dd8d925d13e43 IN  0xffd74ef185989bff8752c818a53a47fc45388f080 ETH0.000115872530.100909456
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0xd833acb3b1c95098a9943d90bf1959d563996ae07f406d4a5eeba5d4692339e11075583252023-07-30 11:10:27212 days 1 hr ago 0xffd74ef185989bff8752c818a53a47fc45388f08 Optimism: OP Token0 ETH
0xd833acb3b1c95098a9943d90bf1959d563996ae07f406d4a5eeba5d4692339e11075583252023-07-30 11:10:27212 days 1 hr ago 0xffd74ef185989bff8752c818a53a47fc45388f08 Velodrome Finance: VELO Token0 ETH
0xd833acb3b1c95098a9943d90bf1959d563996ae07f406d4a5eeba5d4692339e11075583252023-07-30 11:10:27212 days 1 hr ago 0xffd74ef185989bff8752c818a53a47fc45388f08 Optimism: OP Token0 ETH
0xd833acb3b1c95098a9943d90bf1959d563996ae07f406d4a5eeba5d4692339e11075583252023-07-30 11:10:27212 days 1 hr ago 0xffd74ef185989bff8752c818a53a47fc45388f08 Velodrome Finance: Pair Factory0 ETH
0xd833acb3b1c95098a9943d90bf1959d563996ae07f406d4a5eeba5d4692339e11075583252023-07-30 11:10:27212 days 1 hr ago 0xffd74ef185989bff8752c818a53a47fc45388f08 Optimism: OP Token0 ETH
0xd833acb3b1c95098a9943d90bf1959d563996ae07f406d4a5eeba5d4692339e11075583252023-07-30 11:10:27212 days 1 hr ago 0xffd74ef185989bff8752c818a53a47fc45388f08 Velodrome Finance: VELO Token0 ETH
0xd833acb3b1c95098a9943d90bf1959d563996ae07f406d4a5eeba5d4692339e11075583252023-07-30 11:10:27212 days 1 hr ago 0xffd74ef185989bff8752c818a53a47fc45388f08 Velodrome Finance: VELO Token0 ETH
0xd833acb3b1c95098a9943d90bf1959d563996ae07f406d4a5eeba5d4692339e11075583252023-07-30 11:10:27212 days 1 hr ago 0xffd74ef185989bff8752c818a53a47fc45388f08 Velodrome Finance: Pair Factory0 ETH
0xd833acb3b1c95098a9943d90bf1959d563996ae07f406d4a5eeba5d4692339e11075583252023-07-30 11:10:27212 days 1 hr ago Velodrome Finance: Router V2 0xffd74ef185989bff8752c818a53a47fc45388f080 ETH
0xd833acb3b1c95098a9943d90bf1959d563996ae07f406d4a5eeba5d4692339e11075583252023-07-30 11:10:27212 days 1 hr ago 0xffd74ef185989bff8752c818a53a47fc45388f08 Velodrome Finance: Pair Factory0 ETH
0xd833acb3b1c95098a9943d90bf1959d563996ae07f406d4a5eeba5d4692339e11075583252023-07-30 11:10:27212 days 1 hr ago Velodrome Finance: Router V2 0xffd74ef185989bff8752c818a53a47fc45388f080 ETH
0xcf5337010de47f79ebb460f65278d5cc19fd3f3a41cd054e6d07283052d1a1281075582932023-07-30 11:09:23212 days 1 hr ago 0xffd74ef185989bff8752c818a53a47fc45388f08 Velodrome Finance: Pair Factory0 ETH
0xcf5337010de47f79ebb460f65278d5cc19fd3f3a41cd054e6d07283052d1a1281075582932023-07-30 11:09:23212 days 1 hr ago 0xed4da4d3b90cb359d0216c0016ac6d9241d817c3 0xffd74ef185989bff8752c818a53a47fc45388f080 ETH
0xcf5337010de47f79ebb460f65278d5cc19fd3f3a41cd054e6d07283052d1a1281075582932023-07-30 11:09:23212 days 1 hr ago 0xffd74ef185989bff8752c818a53a47fc45388f08 Velodrome Finance: Pair Factory0 ETH
0xcf5337010de47f79ebb460f65278d5cc19fd3f3a41cd054e6d07283052d1a1281075582932023-07-30 11:09:23212 days 1 hr ago 0xed4da4d3b90cb359d0216c0016ac6d9241d817c3 0xffd74ef185989bff8752c818a53a47fc45388f080 ETH
0xcf5337010de47f79ebb460f65278d5cc19fd3f3a41cd054e6d07283052d1a1281075582932023-07-30 11:09:23212 days 1 hr ago 0xffd74ef185989bff8752c818a53a47fc45388f08 Velodrome Finance: Pair Factory0 ETH
0xcf5337010de47f79ebb460f65278d5cc19fd3f3a41cd054e6d07283052d1a1281075582932023-07-30 11:09:23212 days 1 hr ago 0xed4da4d3b90cb359d0216c0016ac6d9241d817c3 0xffd74ef185989bff8752c818a53a47fc45388f080 ETH
0xb65a519e355d10f188da040bc1fdca5e7359fd6b42ce17615a10564025ab74541075582482023-07-30 11:07:53212 days 1 hr ago 0xffd74ef185989bff8752c818a53a47fc45388f08 Velodrome Finance: Pair Factory0 ETH
0xb65a519e355d10f188da040bc1fdca5e7359fd6b42ce17615a10564025ab74541075582482023-07-30 11:07:53212 days 1 hr ago 0xed4da4d3b90cb359d0216c0016ac6d9241d817c3 0xffd74ef185989bff8752c818a53a47fc45388f080 ETH
0xb65a519e355d10f188da040bc1fdca5e7359fd6b42ce17615a10564025ab74541075582482023-07-30 11:07:53212 days 1 hr ago 0xffd74ef185989bff8752c818a53a47fc45388f08 Velodrome Finance: Pair Factory0 ETH
0xb65a519e355d10f188da040bc1fdca5e7359fd6b42ce17615a10564025ab74541075582482023-07-30 11:07:53212 days 1 hr ago 0xed4da4d3b90cb359d0216c0016ac6d9241d817c3 0xffd74ef185989bff8752c818a53a47fc45388f080 ETH
0xb65a519e355d10f188da040bc1fdca5e7359fd6b42ce17615a10564025ab74541075582482023-07-30 11:07:53212 days 1 hr ago 0xffd74ef185989bff8752c818a53a47fc45388f08 Velodrome Finance: Pair Factory0 ETH
0xb65a519e355d10f188da040bc1fdca5e7359fd6b42ce17615a10564025ab74541075582482023-07-30 11:07:53212 days 1 hr ago 0xed4da4d3b90cb359d0216c0016ac6d9241d817c3 0xffd74ef185989bff8752c818a53a47fc45388f080 ETH
0xb65a519e355d10f188da040bc1fdca5e7359fd6b42ce17615a10564025ab74541075582482023-07-30 11:07:53212 days 1 hr ago 0xffd74ef185989bff8752c818a53a47fc45388f08 Velodrome Finance: Pair Factory0 ETH
0xb65a519e355d10f188da040bc1fdca5e7359fd6b42ce17615a10564025ab74541075582482023-07-30 11:07:53212 days 1 hr ago 0xed4da4d3b90cb359d0216c0016ac6d9241d817c3 0xffd74ef185989bff8752c818a53a47fc45388f080 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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